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CN113894982B - Preparation process of multi-layer table tennis bat rubber - Google Patents

Preparation process of multi-layer table tennis bat rubber Download PDF

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Publication number
CN113894982B
CN113894982B CN202110931706.XA CN202110931706A CN113894982B CN 113894982 B CN113894982 B CN 113894982B CN 202110931706 A CN202110931706 A CN 202110931706A CN 113894982 B CN113894982 B CN 113894982B
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China
Prior art keywords
rubber
mixing
weight
parts
coating
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CN113894982A (en
Inventor
王旭升
汤小庆
许鸿祥
高焱
刘宗英
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Yancheng AST Sporting Goods Co Ltd
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Yancheng AST Sporting Goods Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
    • B29B7/56—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/582—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B29B7/606—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material specially adapted for feeding calenders or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/24—Calendering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/521—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by spin coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02241—Cutting, e.g. by using waterjets, or sawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/12—Layered products comprising a layer of natural or synthetic rubber comprising natural rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2307/00—Characterised by the use of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
    • C08J2433/12—Homopolymers or copolymers of methyl methacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2433/18—Homopolymers or copolymers of nitriles
    • C08J2433/20—Homopolymers or copolymers of acrylonitrile
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2439/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Derivatives of such polymers
    • C08J2439/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
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    • C08K5/00—Use of organic ingredients
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    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
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    • C08K5/46—Heterocyclic compounds having sulfur in the ring with oxygen or nitrogen in the ring
    • C08K5/47—Thiazoles
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Abstract

The invention relates to a preparation process of multi-layer table tennis bat rubber, which comprises the steps of respectively adding and mixing the raw materials in sequence according to a formula to obtain mixed rubber, calendaring the mixed rubber to obtain a sheet-shaped prefabricated product, coating and laminating the sheet-shaped prefabricated product, then placing the sheet-shaped prefabricated product in a vulcanizing machine for vulcanization, cooling at room temperature after vulcanization to obtain multi-layer table tennis bat rubber, placing the multi-layer table tennis bat rubber on a table tennis bat assembly machine for cutting, gluing and laminating to prepare the table tennis bat; the preparation device of the preparation process of the multi-layer table tennis bat rubber provided by the invention has a simple structure, is easy to realize, integrates mixing, tabletting, laminating, cutting, gluing, laminating and the like, improves the quality and efficiency of each process, reduces the manual operation and the workload, and reduces the technical requirements on operators.

Description

Preparation process of multi-layer table tennis bat rubber
Technical Field
The invention belongs to the technical field of table tennis bat rubber, and particularly relates to a preparation process and a preparation device of a multi-layer table tennis bat rubber.
Background
Table tennis, called "national ball" in China, is also a popular ball in the world, and the quality of table tennis rackets has a certain influence on the play of athletes; the table tennis bat consists of a bottom plate, rubber and sponge, the quality of one bat is determined by reasonable collocation of the bottom plate, the rubber and the sponge, especially the quality of the rubber of the table tennis bat, the hardness and the elasticity of the rubber are important indexes of the rubber, and the elasticity or the hardness of a plurality of rubber in the market cannot meet the requirements; at present, a single-layer or two-layer composite structure is adopted in the market, but the single-layer or two-layer structure mostly affects the performance of the table tennis bat due to the factors such as the formula or thickness of each layer of sizing material.
Besides the rubber preparation process, the preparation device of the table tennis bat rubber is also an important factor affecting the quality of the table tennis bat, the existing table tennis bat has the phenomena of rubber falling, layering and unsmooth contour of the periphery of the rubber, so that the mixing, tabletting, coating, pressing, cutting and the like of rubber raw materials are key links in preparation, each working procedure of the existing preparation device needs an independent device and cannot be prepared by adopting a small number of calendaring equipment, the operation is complex, the occupied space is occupied, the connection of each working procedure needs manual operation, the technical requirement on the manual operation is high, the workload is large, and the number of the manual factors is large, so that the product quality is different.
Disclosure of Invention
In order to solve the problems, the invention discloses a preparation process of a multi-layer table tennis bat rubber which can provide a plurality of different performances and adapt to different batting technologies; and a laminated composite calendaring production line for preparing the multi-layer table tennis bat rubber and complete equipment thereof, and the preparation device has simple structure and is easy to implement.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a preparation process of a multi-layer table tennis bat rubber comprises the following steps:
(1) Preparation of a first rubber layer mixed rubber material: mixing 70-80 parts by weight of natural rubber, 10 parts by weight of butadiene rubber and 25 parts by weight of trans-1, 4-polyisoprene rubber, and then mixing for 3-5 minutes at 95-100 ℃ on a rubber mixing mill, and adding 1-5 parts by weight of colorant while mixing; then adding 10-15 parts by weight of polymethyl methacrylate, 15-20 parts by weight of polyvinyl imidazole and 10-15 parts by weight of polyacrylonitrile on a rubber mixing mill, mixing for 3-5 minutes at 95-100 ℃, then adding 0.5-1 part by weight of 2, 4-trimethyl-1, 2-dihydroquinoline polymer and 5-10 parts by weight of zinc carbonate, mixing for 3-5 minutes, then discharging rubber at 80-100 ℃, and then adding 0.5-1.5 parts by weight of 2, 2' -dithiodibenzothiazyl and 0.6-1 part by weight of sulfur, mixing for 2-3 minutes at 80-90 ℃ to obtain a first rubber layer mixed rubber material;
(2) Preparation of a second rubber layer mixed rubber material: mixing 50-80 parts by weight of natural rubber and 30-50 parts by weight of butadiene rubber, and then mixing for 3-5 minutes at 95-100 ℃ on a rubber mixing mill, and adding 1-5 parts by weight of colorant while mixing; then adding 10-15 parts by weight of polymethyl methacrylate, 15-20 parts by weight of polyvinyl imidazole and 10-15 parts by weight of polyacrylonitrile, mixing for 3-5 minutes at 95-100 ℃ on a rubber mixing machine, adding 0.5-1 part by weight of 2, 4-trimethyl-1, 2-dihydroquinoline polymer and 5-10 parts by weight of zinc carbonate, mixing for 3-5 minutes, discharging rubber at 80-100 ℃, and adding 1.0-2.0 parts by weight of 2, 2' -dithiodibenzothiazole and 0.6-0.8 part by weight of sulfur, mixing for 2-3 minutes at 80-90 ℃ to obtain a second rubber layer mixed rubber material;
(3) Preparation of a third rubber layer mixed rubber material: mixing 50-80 parts by weight of natural rubber and 30-50 parts by weight of trans-1, 4-polyisoprene rubber, and then mixing for 3-5 minutes at 95-100 ℃ on a rubber mixing mill, and adding 1-5 parts by weight of colorant while mixing; then adding 10-15 parts by weight of polymethyl methacrylate, 15-20 parts by weight of polyvinyl imidazole and 10-15 parts by weight of polyacrylonitrile, mixing for 3-5 minutes at 95-100 ℃ on a rubber mixing machine, adding 0.5-1 part by weight of 2, 4-trimethyl-1, 2-dihydroquinoline polymer and 5-10 parts by weight of zinc carbonate, mixing for 3-5 minutes, discharging rubber at 80-100 ℃, and adding 1.0-2.0 parts by weight of 2, 2' -dithiodibenzothiazyl and 0.6-0.8 part by weight of sulfur, mixing for 2-5 minutes at 80-90 ℃ to obtain a third mixed rubber layer;
(4) Adding the first rubber layer mixed rubber material, the second rubber layer mixed rubber material and the third rubber layer mixed rubber material obtained in the steps (1), (2) and (3) into a calender respectively to carry out calendaring and sheet discharging to obtain a first rubber layer sheet-shaped prefabricated product with the thickness of 0.4-0.5mm, a second rubber layer sheet-shaped prefabricated product with the thickness of 0.6-0.7mm and a third rubber layer sheet-shaped prefabricated product with the thickness of 0.8-1.2mm respectively, and then rolling and storing;
(5) And (3) superposing the first rubber layer sheet-shaped prefabricated product, the second rubber layer sheet-shaped prefabricated product and the third rubber layer sheet-shaped prefabricated product obtained in the step (4) from top to bottom through a traction mechanism and a coating mechanism, laminating on a laminating mechanism, then vulcanizing in a vulcanizing machine, cooling at 25-40 ℃ for 12-24 hours after vulcanizing to obtain a plurality of layers of table tennis bat rubber, then cutting on a table tennis bat assembly machine, gluing the table tennis bat, and laminating the cut rubber and the glued table tennis bat to prepare the table tennis bat.
The utility model provides a preparation facilities of multilayer table tennis bat rubber's preparation technology, includes rubber mixing machine, calender, traction mechanism, coating mechanism, pressing mechanism, vulcanizer and table tennis bat assembly machine, and the rubber mixing machine is connected the calender, and the calender is connected traction mechanism, and traction mechanism is connected coating mechanism, and coating mechanism is connected pressing mechanism, and pressing mechanism is connected the vulcanizer, and the vulcanizer is connected table tennis bat assembly machine, the rubber mixing machine includes mixing mechanism, rotor, loading gate, unloading gate and first conveyer belt; the calender comprises a first press roller, a second press roller and a third press roller; the traction mechanism comprises a second conveyor belt, a conveying roller and a winding roller, and the mixed sizing material rolled between the second compression roller and the third compression roller passes through the second conveyor belt and the conveying roller and is collected by the winding roller; the coating mechanism comprises a coating box, a first coating pipe and a second coating pipe, wherein a first rubber layer sheet-shaped prefabricated product is arranged above the first coating pipe, a second rubber layer sheet-shaped prefabricated product is arranged below the first coating pipe, a second rubber layer sheet-shaped prefabricated product is arranged above the second coating pipe, and a third rubber layer sheet-shaped prefabricated product is arranged below the second coating pipe; the pressing mechanism comprises a fourth pressing roller, a fifth pressing roller and a sixth pressing roller, wherein the fifth pressing roller is arranged right below the fourth pressing roller, and the sixth pressing roller is arranged right below the fifth pressing roller.
Further, the rubber mixing machine further comprises a box body, a mixing mechanism, a feeding door, a rotor, a discharging door and a first conveyor belt are sequentially arranged in the box body from top to bottom, the mixing mechanism comprises a first feeding hopper, mixing rollers and a mixing bin, the vertical section of the feeding hopper is of an inverted cone table type, the bottom of the feeding hopper is connected with the mixing bin, and the mixing bin is provided with two mixing rollers in parallel; the mixing bin bottom is equipped with the loading door, and both ends are equipped with a plurality of gyro wheels about the loading door, and the gyro wheel below is equipped with the track with gyro wheel assorted, and the below of rotor is equipped with the door of unloading, both ends are equipped with a plurality of gyro wheels about the door of unloading, and the gyro wheel below is equipped with the track with gyro wheel assorted, the rear end connection actuating mechanism of loading door and unloading door, the door below of unloading is equipped with first conveyer belt, and the direction of delivery of first conveyer belt is perpendicular with rotor axial direction, and first conveyer belt passes the box side, and the bottom half is equipped with the support frame.
Further, the bottom of loading door is equipped with the recess, be equipped with the second charging hopper on the loading door, the second charging hopper runs through the loading door, and the setting of second hopper is convenient for mix the in-process reinforced, the vertical cross-section of second charging hopper is the back taper platform type, the export of second charging hopper runs through the bottom of recess, avoids the jam of sizing material to the export of second charging hopper.
Further, the calender is arranged below the first transmission belt, the first press roller and the second press roller are arranged in parallel in the horizontal direction, the end point of the first transmission belt is arranged right above the first press roller, the second press roller is far away from the first transmission belt, a third press roller is arranged right below the second press roller, the distance between the first press roller and the second press roller is larger than the distance between the second press roller and the third press roller, and gradual calendaring enables calendaring to be more uniform.
Further, a first inlet, a second inlet and a third inlet are sequentially arranged on the left side of the coating box from top to bottom, a first outlet, a second outlet and a third outlet are sequentially arranged on the right side of the coating box from top to bottom, the first inlet is higher than the first outlet, the second inlet and the second outlet are in a horizontal straight line, and the third inlet is lower than the third outlet; the sheet-shaped prefabricated products are gradually laminated, so that the lamination is avoided before lamination, and bubbles are avoided in the lamination process.
Further, the first coating pipe sequentially comprises a coating liquid cavity and a liquid storage cavity from outside to inside, a first bulge is arranged on the upper portion of the coating pipe, a second bulge is arranged at the bottom of the coating pipe, a first liquid outlet is formed in the left portion of the first bulge, the first liquid outlet is lower than the highest position of the first bulge, a recovery port is formed in the left side of the first liquid outlet, a second liquid outlet is formed in the left portion of the second bulge, the second liquid outlet is higher than the lowest position of the second bulge, the first liquid outlet and the second liquid outlet are communicated with the coating liquid cavity, and the recovery port is communicated with the liquid storage cavity; after coating, the convex part smears the coating liquid again, and the surplus scraping is recovered from the recovery port, so that the waste is avoided.
Further, the second coating pipe sequentially comprises a coating liquid cavity and a liquid storage cavity from outside to inside, a first bulge is arranged on the upper portion of the coating pipe, a second bulge is arranged at the bottom of the coating pipe, a first liquid outlet is formed in the left portion of the first bulge, the first liquid outlet is lower than the highest position of the first bulge, a recovery port is formed in the left side of the first liquid outlet, a second liquid outlet is formed in the left portion of the second bulge, the second liquid outlet is higher than the lowest position of the second bulge, the first liquid outlet and the second liquid outlet are communicated with the coating liquid cavity, and the recovery port is communicated with the liquid storage cavity; after coating, the convex part smears the coating liquid again, and the surplus scraping is recovered from the recovery port, so that the waste is avoided.
Further, the table tennis bat assembling machine comprises an assembling machine box body, wherein a rubber inlet and a rubber outlet are correspondingly formed in the rear side surface and the front side surface of the assembling machine box body, and rubber passes through the assembling machine box body; a cutting mechanism, a gluing mechanism, a pressing mechanism and a shooting mechanism are arranged in the assembly machine box; the cutting mechanism comprises a plurality of cutting tables, a first rotary table and a plurality of cutting knives, wherein the cutting knives are arranged above the rubber, the lower part of the rubber is provided with a cutting table matched with the cutting knives, the upper surface of the cutting table is provided with an annular groove in the shape of the cutting knives, the cutting table is arranged in a through hole of the first rotary table, a guide rail is arranged below the cutting table, the guide rail is barrel-shaped, the left side of the guide rail is provided with an annular bulge, the bottom of the first rotary table is provided with a driving gear, and the cutting mechanism is arranged at the left side of the inside of the box body; the right side of the cutting mechanism is provided with a gluing mechanism, the gluing mechanism comprises a second rotary table, a plurality of brackets and a gluing roller, the brackets are arranged at the top of the second rotary table, the upper surface of each bracket is provided with a racket placing groove, the gluing roller is arranged below the front side bracket, and the bottom of the second rotary table is provided with a driven gear, and the driving gear drives the driven gear to rotate; the pressing mechanism comprises a pressing block, a pushing block and an air cylinder; a bracket at the left part of the gluing mechanism is arranged above a cutting table at the right part of the cutting mechanism, and a pressing mechanism is arranged above the bracket at the left part of the gluing mechanism; the collecting and shooting mechanism comprises an air cylinder, a storage box and a push rod, and is arranged on the right side of the gluing mechanism; the cutting knife is in the shape of the finished table tennis bat rubber, and is matched with the cutting table and the annular groove in the shape of the cutting knife, one knife completes cutting, the periphery of the cut rubber is smooth in contour, and the cutting quality is improved.
Further, a reset disc is arranged on the second turntable near the top, a plurality of columnar reset grooves are annularly arranged on the reset disc, a buffer rod is arranged at the bottom of each reset groove, the upper end of each buffer rod is connected with the lower surface of a support, a reset spring is sleeved on each buffer rod, the supports are clamped in T-shaped guide grooves on the top of the second turntable, the T-shaped guide grooves are annularly distributed on the top of the second turntable, a plurality of racket placing grooves are formed in the upper surface of one end, far away from the second turntable, of each support, rubber bonding positions of the racket placing grooves are through holes, fan-shaped grooves are formed in the lower surface of each support, and the through holes penetrate through the bottoms of the fan-shaped grooves; a glue spreader is arranged below the bracket and is arranged in a glue box which is open; the pressing mechanism is matched with the gluing mechanism and the cutting mechanism to apply certain pressure, pressure maintaining can be carried out for a certain time as required, and the gluing mechanism quantitatively glues, so that the pasting quality is improved.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the preparation process provided by the invention is simple to operate, and can provide a plurality of preparation processes of the multi-layer table tennis bat rubber with different performances and suitable for different batting technologies; the mixing mechanism is arranged in the mixing mill, so that uniform mixing is facilitated before mixing, mixing time is reduced, a first feeding hopper and a second feeding hopper are arranged, subsequent components are convenient to add, the mixed sizing material is conveyed to the rolling mill through the first conveying belt, and the rolling mill is used for continuously rolling twice to obtain a sheet-shaped prefabricated product with required thickness, so that the rolling thickness is uniform; the sheet-shaped prefabricated product is rolled up to the rolling roller under the drive of the second conveyor belt, and after the required three layers of different rubber sheet-shaped prefabricated products are prepared, the sheet-shaped prefabricated products are pressed twice after passing through the coating mechanism and then vulcanized, and the process only needs workers to do connection work, so that manual operation is greatly reduced.
Drawings
FIG. 1 is a schematic structural view of a preparation device of a preparation process of a multi-layer table tennis bat rubber according to the present invention;
FIG. 2 is a schematic view of the mixing mechanism of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the coating mechanism of FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the table tennis bat assembly machine of FIG. 1 according to the present invention;
FIG. 5 is a schematic view of the first coated tube of FIG. 1 according to the present invention;
reference numerals illustrate:
1. a rubber mixing machine; 101. a case; 102. a loading door; 103. a discharge door; 104. a rotor; 105. a first loading hopper; 106. a second loading hopper; 107. a mixing roller; 108. a roller; 109. a track; 110. a rotor blade; 2. a calender; 201. a first press roller; 202. a second press roller; 203. a third press roller; 3. a wind-up roll; 4. a coating mechanism; 401. a first inlet; 402. a second inlet; 403. a third inlet; 404. a first outlet; 405. a second outlet; 406. a third outlet; 407. a first coated tube; 408. a second coated tube; 409. a first protrusion; 410. a second protrusion; 411. a liquid coating cavity; 412. a liquid storage cavity; 413. a first liquid outlet; 414. recovering the mouth; 415. a second liquid outlet; 5. a pressing mechanism; 501. a fourth press roller; 502. a fifth press roller; 503. a sixth press roller; 6. a vulcanizer; 7. a table tennis bat assembling machine; 701. assembling a machine box body; 702. a first turntable; 703. a cutting table; 704. a cutting knife; 705. a pushing block; 706. a cylinder; 707. a guide rail; 708. a drive gear; 709. a driven gear; 710. a second turntable; 711. a bracket; 712. briquetting; 713. a push rod; 714. a storage box; 8. a first conveyor belt; 9. a second conveyor belt; 10. and a conveying roller.
Detailed Description
The technical solutions provided in the present invention will be described in detail below with reference to specific embodiments, and it should be understood that the following examples of specific process parameters and the like are only one example of suitable ranges, that is, those skilled in the art can make a selection within a suitable range through the description herein, and are not limited to the specific values of the examples below, which are only used to illustrate the present invention and not to limit the scope of the present invention.
Example 1
A preparation process of a multi-layer table tennis bat rubber comprises the following steps:
(1) Preparation of a first rubber layer mixed rubber material: mixing 70 parts by weight of natural rubber, 10 parts by weight of butadiene rubber and 25 parts by weight of trans-1, 4-polyisoprene rubber, and then mixing for 3 minutes at 95-100 ℃ on a rubber mixing mill, and adding 2 parts by weight of colorant while mixing; then adding 10 parts by weight of polymethyl methacrylate, 15 parts by weight of polyvinyl imidazole and 15 parts by weight of polyacrylonitrile, mixing for 3 minutes at the temperature of 95-100 ℃ on a rubber mixing mill, adding 0.8 part by weight of 2, 4-trimethyl-1, 2-dihydroquinoline polymer and 10 parts by weight of zinc carbonate, mixing for 3 minutes, discharging rubber at the temperature of 80-100 ℃, adding 0.8 part by weight of 2, 2' -dithiodibenzothiazyl and 0.8 part by weight of sulfur, and mixing for 2 minutes at the temperature of 80-90 ℃ to obtain a first rubber layer mixed rubber material;
(2) Preparation of a second rubber layer mixed rubber material: mixing 60 parts by weight of natural rubber and 30 parts by weight of butadiene rubber, and then mixing for 3 minutes at 95-100 ℃ on a rubber mixing mill, and adding 2 parts by weight of colorant while mixing; then adding 10 parts by weight of polymethyl methacrylate, 15 parts by weight of polyvinyl imidazole and 10 parts by weight of polyacrylonitrile, mixing for 3 minutes at the temperature of 95-100 ℃ on a rubber mixing mill, adding 1 part by weight of 2, 4-trimethyl-1, 2-dihydroquinoline polymer and 10 parts by weight of zinc carbonate, mixing for 3 minutes, discharging rubber at the temperature of 80-100 ℃, and adding 1.0 part by weight of 2, 2' -dithiodibenzothiazyl and 0.8 part by weight of sulfur, mixing for 2 minutes at the temperature of 80-90 ℃ to obtain a second rubber layer mixed rubber material;
(3) Preparation of a third rubber layer mixed rubber material: mixing 60 parts by weight of natural rubber and 40 parts by weight of trans-1, 4-polyisoprene rubber, and then mixing the mixture for 3 minutes at the temperature of 95-100 ℃ on a rubber mixing mill, and adding 2 parts by weight of colorant while mixing; then adding 10 parts by weight of polymethyl methacrylate, 15 parts by weight of polyvinyl imidazole and 10 parts by weight of polyacrylonitrile, mixing for 3 minutes at the temperature of 95-100 ℃ on a rubber mixing machine, adding 1 part by weight of 2, 4-trimethyl-1, 2-dihydroquinoline polymer and 8 parts by weight of zinc carbonate, mixing for 3 minutes, discharging rubber at the temperature of 80-100 ℃, adding 1.0 part by weight of 2, 2' -dithiodibenzothiazyl and 0.8 part by weight of sulfur, and mixing for 2-5 minutes at the temperature of 80-90 ℃ to obtain a third rubber layer mixed rubber material;
(4) Adding the first rubber layer mixed rubber material, the second rubber layer mixed rubber material and the third rubber layer mixed rubber material obtained in the steps (1), (2) and (3) into a calender respectively to carry out calendaring and sheet discharging to obtain a first rubber layer sheet-shaped prefabricated product with the thickness of 0.4-0.5mm, a second rubber layer sheet-shaped prefabricated product with the thickness of 0.6-0.7mm and a third rubber layer sheet-shaped prefabricated product with the thickness of 0.9-1.0mm respectively, and then rolling and storing;
(5) And (3) superposing the first rubber layer sheet-shaped prefabricated product, the second rubber layer sheet-shaped prefabricated product and the third rubber layer sheet-shaped prefabricated product obtained in the step (4) from top to bottom through a traction mechanism and a coating mechanism, laminating on a laminating mechanism, then vulcanizing in a vulcanizing machine, cooling at 30 ℃ for 24 hours after vulcanizing to obtain a plurality of layers of table tennis bat rubber, then cutting on a table tennis bat assembly machine, gluing the table tennis bat, and laminating the cut rubber with the glued table tennis bat to prepare the table tennis bat.
Example 2
The utility model provides a preparation facilities of multilayer table tennis bat rubber's preparation process, including rubber mixing machine 1, calender 2, traction mechanism, coating mechanism 4, pressing mechanism 5, vulcanizer 6 and table tennis bat assembly machine 7, rubber mixing machine 1 connects calender 2, calender 2 connects traction mechanism, traction mechanism connects coating mechanism 4, coating mechanism 4 connects pressing mechanism 5, pressing mechanism 5 connects vulcanizer 6, vulcanizer 6 connects table tennis bat assembly machine 7, rubber mixing machine 1 includes mixing mechanism, rotor 104, loading gate 102, unloading gate 103 and first conveyer belt 8, be equipped with rotor 110 on rotor 104, rotor 110 increases or reduces in proper order along rotor 104 axial; the calender 2 comprises a first press roll 201, a second press roll 202 and a third press roll 203; the traction mechanism comprises a second conveyor belt 9, a conveying roller 10 and a winding roller 3, and the mixed sizing material rolled between the second compression roller 202 and the third compression roller 203 passes through the second conveyor belt 9 and the conveying roller 10 and is collected by the winding roller 3; the coating mechanism 4 comprises a coating box, a first coating pipe 407 and a second coating pipe 408, wherein a first rubber layer sheet-shaped prefabricated product is arranged above the first coating pipe 407, a second rubber layer sheet-shaped prefabricated product is arranged below the first coating pipe 407, a second rubber layer sheet-shaped prefabricated product is arranged above the second coating pipe 408, and a third rubber layer sheet-shaped prefabricated product is arranged below the second coating pipe 408; the pressing mechanism 5 comprises a fourth pressing roller 501, a fifth pressing roller 502 and a sixth pressing roller 503, wherein the fifth pressing roller 502 is arranged under the fourth pressing roller 501, and the sixth pressing roller 503 is arranged under the fifth pressing roller 502.
The rubber mixing machine 1 further comprises a box body 101, a mixing mechanism, a feeding door 102, a rotor 104, a discharging door 103 and a first conveyor belt 8 are sequentially arranged in the box body 101 from top to bottom, the mixing mechanism comprises a first feeding hopper 105, mixing rollers 107 and a mixing bin, the vertical section of the feeding hopper is of an inverted cone table type, the bottom of the feeding hopper is connected with the mixing bin, and the mixing bin is provided with two mixing rollers 107 in parallel; the mixing bin bottom is equipped with feed gate 102, the both ends are equipped with a plurality of gyro wheels 108 about feed gate 102, the gyro wheel 108 below is equipped with gyro wheel 108 assorted track 109, the below of rotor 104 is equipped with the door 103 of unloading, both ends are equipped with a plurality of gyro wheels 108 about the door 103 of unloading, the gyro wheel 108 below is equipped with gyro wheel 108 assorted track 109, feed gate 102 and the rear end connection actuating mechanism of door 103 of unloading, the door 103 below of unloading is equipped with first conveyer belt 8, the direction of transfer of first conveyer belt 8 is perpendicular with rotor 104 axial direction, first conveyer belt 8 passes box 101 side, the box 101 bottom is equipped with the support frame.
The bottom of loading door 102 is equipped with the recess, is equipped with second hopper 106 on the loading door 102, and second hopper 106 runs through loading door 102, and the vertical cross-section of second hopper 106 is the back taper platform type, and the export of second hopper 106 runs through the bottom of recess.
The calender 2 is arranged below the first transmission belt, the first press roller 201 and the second press roller 202 are arranged in parallel in the horizontal direction, the end point of the first transmission belt 8 is arranged right above the first press roller 201, the second press roller 202 is arranged far away from the first transmission belt 8, a third press roller 203 is arranged right below the second press roller 202, and the distance between the first press roller 201 and the second press roller 202 is larger than the distance between the second press roller 202 and the third press roller 203.
The left side of the coating box is provided with a first inlet 401, a second inlet 402 and a third inlet 403 from top to bottom in sequence, the right side of the coating box is provided with a first outlet 404, a second outlet 405 and a third outlet 406 from top to bottom in sequence, the first inlet 401 is higher than the first outlet 404, the second inlet 402 and the second outlet 405 are in a horizontal straight line, and the third inlet 403 is lower than the third outlet 406.
The first coating pipe 407 sequentially comprises a coating liquid cavity 411 and a liquid storage cavity 412 from outside to inside, a first bulge 409 is arranged on the upper portion of the coating pipe, a second bulge 410 is arranged at the bottom of the coating pipe, a first liquid outlet 413 is arranged on the left portion of the first bulge 409, the first liquid outlet 413 is lower than the highest position of the first bulge 409, a recovery port 414 is arranged on the left side of the first liquid outlet 413, a second liquid outlet 415 is arranged on the left portion of the second bulge 410, the second liquid outlet 415 is higher than the lowest position of the second bulge 410, the first liquid outlet 413 and the second liquid outlet 415 are communicated with the coating liquid cavity 411, and the recovery port 414 is communicated with the liquid storage cavity 412.
The second coating pipe 408 includes coating liquid chamber 411, stock solution chamber 412 in proper order from outside to inside, coating pipe upper portion is equipped with first arch 409, and the coating pipe bottom is equipped with second arch 410, and first protruding 409 left part is equipped with first liquid outlet 413, and first liquid outlet 413 is less than the highest position of first arch 409, is less than first liquid outlet 413 left side and is equipped with recovery mouth 414, and second protruding 410 left part is equipped with second liquid outlet 415, and second liquid outlet 415 is higher than the lowest position of second arch 410, and first liquid outlet 413, second liquid outlet 415 communicate with each other with coating liquid chamber 411, and recovery mouth 414 communicates with each other with stock solution chamber 412.
The table tennis bat assembling machine 7 comprises an assembling machine box 701, wherein a rubber inlet and a rubber outlet are correspondingly formed in the rear side surface and the front side surface of the assembling machine box 701, and rubber passes through the assembling machine box 701; a cutting mechanism, a gluing mechanism, a pressing mechanism 5 and a shooting mechanism are arranged in the assembly machine box 701; the cutting mechanism comprises a plurality of cutting tables 703, a first rotary table 702 and a plurality of cutting knives 704, wherein the cutting knives 704 are arranged above a rubber sheet, the lower part of the rubber sheet is provided with the cutting tables 703 matched with the cutting knives 704, the upper surface of the cutting tables 703 is provided with annular grooves in the shape of the cutting knives 704, the cutting tables 703 are arranged in through holes of the first rotary table 702, the lower part of the cutting tables 703 is provided with guide rails 707, the guide rails 707 are barrel-shaped, the left side of the guide rails 707 is provided with annular protrusions, the bottom of the first rotary table 702 is provided with a driving gear 708, and the cutting mechanism is arranged at the left side of the inside of the box; the right side of the cutting mechanism is provided with a gluing mechanism, the gluing mechanism comprises a second rotary table 710, a plurality of brackets 711 and a gluing roller, the brackets 711 are arranged at the top of the second rotary table 710, a racket placing groove is formed in the upper surface of each bracket 711, the gluing roller is arranged below the front side bracket 711, a driven gear 709 is arranged at the bottom of the second rotary table 710, and the driving gear 708 drives the driven gear 709 to rotate; the pressing mechanism 5 comprises a pressing block 712, a pushing block 705 and a cylinder 706; a bracket 711 at the left part of the gluing mechanism is arranged above a cutting table 703 at the right part of the cutting mechanism, and a pressing mechanism 5 is arranged above the bracket 711 at the left part of the gluing mechanism; the take-up mechanism comprises an air cylinder 706, a storage box 714 and a push rod 713, and is arranged on the right side of the gluing mechanism.
The second turntable 710 is provided with a reset disc close to the top, a plurality of columnar reset grooves are annularly arranged on the reset disc, buffer rods are arranged at the bottoms of the reset grooves, the upper ends of the buffer rods are connected with the lower surface of a support 711, a reset spring is sleeved on the buffer rods, the support 711 is clamped in a T-shaped guide groove at the top of the second turntable 710, the T-shaped guide groove is annularly distributed at the top of the second turntable 710, a plurality of racket placing grooves are formed in the upper surface of one end, far away from the second turntable 710, of the support 711, glue leather bonding positions of the racket placing grooves are through holes, fan-shaped grooves are formed in the lower surface of the support 711, and the through holes penetrate through the bottoms of the fan-shaped grooves; the glue spreader is arranged below the bracket 711 and is arranged in a glue box which is open.
Working principle: respectively preparing a first rubber layer mixed rubber material, a second rubber layer mixed rubber material and a third rubber layer mixed rubber material, adding the rubber materials into a first feeding hopper 105 mixing mechanism for mixing, then horizontally pulling out a feeding door 102 by a driving mechanism, enabling the mixed rubber materials to enter a space between rotors 104, opening a second feeding hopper 106 in the feeding door 102, pushing the feeding door 102, starting the rotors 104 to operate for mixing, sequentially adding other components through the second feeding hopper 106, pulling out a discharging door 103 by the driving mechanism after mixing is completed, mixing the rubber materials onto a first conveyor belt 8, pushing the discharging door 103 by the driving mechanism, and carrying out mixing of the next batch; the mixed sizing material is conveyed to a calender 2 through a first conveyor belt 8, the calender 2 is continuously calendered twice to obtain a sheet-shaped prefabricated product with required thickness, the sheet-shaped prefabricated product is driven by a second conveyor belt 9 to be coiled to a wind-up roll 3, three layers of different rubber sheet-shaped prefabricated products required are prepared, synchronously unreeled and pass through a coating mechanism 4, then are pressed twice, then are vulcanized, and vulcanized rubber is automatically cut, glued and pressed in a table tennis racket assembly machine 7 to prepare the table tennis racket.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims (8)

1. The preparation process of the multi-layer table tennis bat rubber is characterized by comprising the following steps of:
(1) Preparation of a first rubber layer mixed rubber material: mixing 70-80 parts by weight of natural rubber, 10 parts by weight of butadiene rubber and 25 parts by weight of trans-1, 4-polyisoprene rubber, and then mixing for 3-5 minutes at 95-100 ℃ on a rubber mixing mill, and adding 1-5 parts by weight of colorant while mixing; then adding 10-15 parts by weight of polymethyl methacrylate, 15-20 parts by weight of polyvinyl imidazole and 10-15 parts by weight of polyacrylonitrile on a rubber mixing mill, mixing for 3-5 minutes at 95-100 ℃, then adding 0.5-1 part by weight of 2, 4-trimethyl-1, 2-dihydroquinoline polymer and 5-10 parts by weight of zinc carbonate, mixing for 3-5 minutes, then discharging rubber at 80-100 ℃, and then adding 0.5-1.5 parts by weight of 2, 2' -dithiodibenzothiazyl and 0.6-1 part by weight of sulfur, mixing for 2-3 minutes at 80-90 ℃ to obtain a first rubber layer mixed rubber material;
(2) Preparation of a second rubber layer mixed rubber material: mixing 50-80 parts by weight of natural rubber and 30-50 parts by weight of butadiene rubber, and then mixing for 3-5 minutes at 95-100 ℃ on a rubber mixing mill, and adding 1-5 parts by weight of colorant while mixing; then adding 10-15 parts by weight of polymethyl methacrylate, 15-20 parts by weight of polyvinyl imidazole and 10-15 parts by weight of polyacrylonitrile, mixing for 3-5 minutes at 95-100 ℃ on a rubber mixing machine, adding 0.5-1 part by weight of 2, 4-trimethyl-1, 2-dihydroquinoline polymer and 5-10 parts by weight of zinc carbonate, mixing for 3-5 minutes, discharging rubber at 80-100 ℃, and adding 1.0-2.0 parts by weight of 2, 2' -dithiodibenzothiazole and 0.6-0.8 part by weight of sulfur, mixing for 2-3 minutes at 80-90 ℃ to obtain a second rubber layer mixed rubber material;
(3) Preparation of a third rubber layer mixed rubber material: mixing 50-80 parts by weight of natural rubber and 30-50 parts by weight of trans-1, 4-polyisoprene rubber, and then mixing for 3-5 minutes at 95-100 ℃ on a rubber mixing mill, and adding 1-5 parts by weight of colorant while mixing; then adding 10-15 parts by weight of polymethyl methacrylate, 15-20 parts by weight of polyvinyl imidazole and 10-15 parts by weight of polyacrylonitrile, mixing for 3-5 minutes at 95-100 ℃ on a rubber mixing machine, adding 0.5-1 part by weight of 2, 4-trimethyl-1, 2-dihydroquinoline polymer and 5-10 parts by weight of zinc carbonate, mixing for 3-5 minutes, discharging rubber at 80-100 ℃, and adding 1.0-2.0 parts by weight of 2, 2' -dithiodibenzothiazyl and 0.6-0.8 part by weight of sulfur, mixing for 2-5 minutes at 80-90 ℃ to obtain a third mixed rubber layer;
(4) Adding the first rubber layer mixed rubber material, the second rubber layer mixed rubber material and the third rubber layer mixed rubber material obtained in the steps (1), (2) and (3) into a calender respectively to carry out calendaring and sheet discharging to obtain a first rubber layer sheet-shaped prefabricated product with the thickness of 0.4-0.5mm, a second rubber layer sheet-shaped prefabricated product with the thickness of 0.6-0.7mm and a third rubber layer sheet-shaped prefabricated product with the thickness of 0.8-1.2mm respectively, and then rolling and storing;
(5) And (3) superposing the first rubber layer sheet-shaped prefabricated product, the second rubber layer sheet-shaped prefabricated product and the third rubber layer sheet-shaped prefabricated product obtained in the step (4) from top to bottom through a traction mechanism and a coating mechanism, laminating, then placing in a vulcanizing machine for vulcanization, placing in a temperature of 25-40 ℃ for cooling for 12-24 hours to obtain a plurality of layers of table tennis bat rubber, then placing in a table tennis bat assembly machine for cutting, gluing the table tennis bat, and laminating the cut rubber with the glued table tennis bat to prepare the table tennis bat.
2. The device for preparing the multi-layer table tennis bat rubber according to claim 1, comprising a rubber mixing machine, a calender, a traction mechanism, a coating mechanism, a pressing mechanism, a vulcanizing machine and a table tennis bat assembling machine, wherein the rubber mixing machine is connected with the calender, the calender is connected with the traction mechanism, the traction mechanism is connected with the coating mechanism, the coating mechanism is connected with the pressing mechanism, the pressing mechanism is connected with the vulcanizing machine, the vulcanizing machine is connected with the table tennis bat assembling machine, and the rubber mixing machine comprises a mixing mechanism, a rotor, a feeding door, a discharging door and a first conveyor belt; the calender comprises a first press roller, a second press roller and a third press roller; the traction mechanism comprises a second conveyor belt, a conveying roller and a winding roller, and the mixed sizing material rolled between the second compression roller and the third compression roller passes through the second conveyor belt and the conveying roller and is collected by the winding roller; the coating mechanism comprises a coating box, a first coating pipe and a second coating pipe, wherein a first rubber layer sheet-shaped prefabricated product is arranged above the first coating pipe, a second rubber layer sheet-shaped prefabricated product is arranged below the first coating pipe, a second rubber layer sheet-shaped prefabricated product is arranged above the second coating pipe, and a third rubber layer sheet-shaped prefabricated product is arranged below the second coating pipe; the pressing mechanism comprises a fourth pressing roller, a fifth pressing roller and a sixth pressing roller, wherein the fifth pressing roller is arranged right below the fourth pressing roller, and the sixth pressing roller is arranged right below the fifth pressing roller;
the first coating pipe sequentially comprises a coating liquid cavity and a liquid storage cavity from outside to inside, a first bulge is arranged on the upper part of the coating pipe, a second bulge is arranged at the bottom of the coating pipe, a first liquid outlet is formed in the left part of the first bulge, the first liquid outlet is lower than the highest position of the first bulge, a recovery port is formed in the left side of the first liquid outlet, a second liquid outlet is formed in the left part of the second bulge, the second liquid outlet is higher than the lowest position of the second bulge, the first liquid outlet and the second liquid outlet are communicated with the coating liquid cavity, and the recovery port is communicated with the liquid storage cavity;
the coating device comprises a first coating pipe, a second coating pipe, a liquid storage cavity, a first liquid outlet, a recovery port, a second liquid outlet and a liquid storage cavity, wherein the second coating pipe sequentially comprises a coating liquid cavity and a liquid storage cavity from outside to inside, the first bulge is arranged on the upper portion of the coating pipe, the second bulge is arranged on the bottom of the coating pipe, the first bulge is arranged on the left portion of the first bulge, the first liquid outlet is lower than the highest position of the first bulge, the recovery port is arranged on the left side of the first liquid outlet, the second bulge is arranged on the left portion of the second bulge, the second liquid outlet is higher than the lowest position of the second bulge, the first liquid outlet, the second liquid outlet are communicated with the coating liquid cavity, and the recovery port is communicated with the liquid storage cavity.
3. The preparation device of the preparation process of the multi-layer table tennis bat rubber according to claim 2, wherein the rubber mixing mill further comprises a box body, a mixing mechanism, a feeding door, a rotor, a discharging door and a first conveyor belt are sequentially arranged in the box body from top to bottom, the mixing mechanism comprises a first feeding hopper, a mixing roller and a mixing bin, the vertical section of the feeding hopper is of an inverted cone table type, the bottom of the feeding hopper is connected with the mixing bin, and the mixing bin is provided with two mixing rollers in parallel; the mixing bin bottom is equipped with the loading door, and both ends are equipped with a plurality of gyro wheels about the loading door, and the gyro wheel below is equipped with the track with gyro wheel assorted, and the below of rotor is equipped with the door of unloading, both ends are equipped with a plurality of gyro wheels about the door of unloading, and the gyro wheel below is equipped with the track with gyro wheel assorted, the rear end connection actuating mechanism of loading door and unloading door, the door below of unloading is equipped with first conveyer belt, and the direction of delivery of first conveyer belt is perpendicular with rotor axial direction, and first conveyer belt passes the box side, and the bottom half is equipped with the support frame.
4. The device for preparing the multi-layer table tennis bat rubber according to claim 3, wherein a groove is formed in the bottom of the feeding door, a second feeding hopper is arranged on the feeding door, the second feeding hopper penetrates through the feeding door, the vertical section of the second feeding hopper is of an inverted cone table shape, and an outlet of the second feeding hopper penetrates through the bottom of the groove.
5. The device for preparing the multi-layer table tennis bat rubber according to claim 2, wherein the calender is arranged below the first driving belt, the first press roller and the second press roller are arranged in parallel in the horizontal direction, the terminal point of the first driving belt is arranged right above the first press roller, the second press roller is far away from the first driving belt, a third press roller is arranged right below the second press roller, and the distance between the first press roller and the second press roller is larger than the distance between the second press roller and the third press roller.
6. The device for preparing the multi-layer table tennis bat rubber according to claim 2, wherein the left side of the coating box is provided with a first inlet, a second inlet and a third inlet from top to bottom in sequence, the right side of the coating box is provided with a first outlet, a second outlet and a third outlet from top to bottom in sequence, the first inlet is higher than the first outlet, the second inlet and the second outlet are in a horizontal straight line, and the third inlet is lower than the third outlet.
7. The preparation device of the preparation process of the multi-layer table tennis bat rubber according to claim 2, wherein the table tennis bat assembling machine comprises an assembling machine box body, a rubber inlet and a rubber outlet are correspondingly formed in the rear side surface and the front side surface of the assembling machine box body, and the rubber passes through the assembling machine box body; a cutting mechanism, a gluing mechanism, a pressing mechanism and a shooting mechanism are arranged in the assembly machine box; the cutting mechanism comprises a plurality of cutting tables, a first rotary table and a plurality of cutting knives, wherein the cutting knives are arranged above the rubber, the lower part of the rubber is provided with a cutting table matched with the cutting knives, the upper surface of the cutting table is provided with an annular groove in the shape of the cutting knives, the cutting table is arranged in a through hole of the first rotary table, a guide rail is arranged below the cutting table, the guide rail is barrel-shaped, the left side of the guide rail is provided with an annular bulge, the bottom of the first rotary table is provided with a driving gear, and the cutting mechanism is arranged at the left side of the inside of the box body; the right side of the cutting mechanism is provided with a gluing mechanism, the gluing mechanism comprises a second rotary table, a plurality of brackets and a gluing roller, the brackets are arranged at the top of the second rotary table, the upper surface of each bracket is provided with a racket placing groove, the gluing roller is arranged below the front side bracket, and the bottom of the second rotary table is provided with a driven gear, and the driving gear drives the driven gear to rotate; the pressing mechanism comprises a pressing block, a pushing block and an air cylinder; a bracket at the left part of the gluing mechanism is arranged above a cutting table at the right part of the cutting mechanism, and a pressing mechanism is arranged above the bracket at the left part of the gluing mechanism; the take-up mechanism comprises a cylinder, a storage box and a push rod, and is arranged on the right side of the gluing mechanism.
8. The preparation device of the preparation process of the multi-layer table tennis bat rubber, as claimed in claim 7, wherein the second turntable is provided with a reset disc close to the top, a plurality of columnar reset grooves are annularly arranged on the reset disc, buffer rods are arranged at the bottoms of the reset grooves, the upper ends of the buffer rods are connected with the lower surface of a support, the buffer rods are sleeved with reset springs, the support is clamped in a T-shaped guide groove at the top of the second turntable, the T-shaped guide groove is annularly distributed at the top of the second turntable, a plurality of bat placing grooves are arranged on the upper surface of one end, far away from the second turntable, of the support, the adhesive positions of the bat placing grooves are through holes, the lower surface of the support is provided with fan-shaped grooves, and the through holes penetrate through the bottoms of the fan-shaped grooves; a glue spreader is arranged below the bracket and is arranged in a glue box which is open.
CN202110931706.XA 2021-08-13 2021-08-13 Preparation process of multi-layer table tennis bat rubber Active CN113894982B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688191A (en) * 1995-06-07 1997-11-18 Acushnet Company Multilayer golf ball
CN1410250A (en) * 2001-09-25 2003-04-16 骆益群 Table tennis and its preparation method
CN104399239A (en) * 2014-12-17 2015-03-11 江苏国星体育器材有限公司 Low-temperature-resistance low-brittleness table tennis bat
CN111070531A (en) * 2019-12-13 2020-04-28 衡橡科技股份有限公司 A kind of preparation method of building seismic isolation rubber bearing and product thereof

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Publication number Priority date Publication date Assignee Title
PE20050413A1 (en) * 2003-09-19 2005-07-01 Siam Ball Sport Factory Co Ltd METHOD OF PRODUCING A RUBBER BALL THAT HAS SEAMLESS DESIGN APPEARANCE
CN101491930B (en) * 2008-01-25 2011-03-02 李光祖 Manufacturing process of sponge rubber for table tennis racket with single-layer multi-party comprehensive effect
CN111073066A (en) * 2019-12-26 2020-04-28 广州双鱼体育用品集团有限公司 Rubber sponge for table tennis bat and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688191A (en) * 1995-06-07 1997-11-18 Acushnet Company Multilayer golf ball
CN1410250A (en) * 2001-09-25 2003-04-16 骆益群 Table tennis and its preparation method
CN104399239A (en) * 2014-12-17 2015-03-11 江苏国星体育器材有限公司 Low-temperature-resistance low-brittleness table tennis bat
CN111070531A (en) * 2019-12-13 2020-04-28 衡橡科技股份有限公司 A kind of preparation method of building seismic isolation rubber bearing and product thereof

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