CN115948867B - A polymer fiber mattress core molding method and device - Google Patents
A polymer fiber mattress core molding method and device Download PDFInfo
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- CN115948867B CN115948867B CN202211691400.2A CN202211691400A CN115948867B CN 115948867 B CN115948867 B CN 115948867B CN 202211691400 A CN202211691400 A CN 202211691400A CN 115948867 B CN115948867 B CN 115948867B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
In order to solve the problems of easy debonding and cracking in the process of forming the high polymer fiber mattress core, thereby causing collapse of the mattress core, the invention provides a high polymer fiber mattress core forming method and a device thereof, comprising a feeding unit, a melting unit, a shaping water tank, a conveying unit and a shearing and packaging unit, by additionally arranging a heating and heat-preserving device between the spinning die head of the melting unit and the shaping water tank, the area is subjected to airtight heat preservation, the temperature of the fiber filaments falling into the water surface is ensured, the fiber adhesion among the fiber filaments is improved, and various performances of the polymer fiber mattress core are improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a method and a device for forming a macromolecular fiber mattress core.
Background
The high polymer fiber mattress core is formed by heating and melting thermoplastic polymer materials, flowing out through a spinneret plate on a die head of equipment to form melt fibers which float on the water surface and cause subsequent dripping when the fibers drip into the water surface to pile up and form spiral swing, and the fibers are mutually wound and bonded by utilizing the adhesion among the fibers at high temperature to form a 3D reticular structure with irregular cavities inside, and cooling and shaping are carried out after the fiber mattress core is immersed in water.
However, in actual production, because a large gap exists between the equipment die head and the water surface, very obvious air circulation exists, so that the cooling speed of the fiber yarns is higher, the temperature is lower during intertwining and bonding, even the surfaces are solidified, the intertwining cannot bond or the bonding effect is poor, the fibers are debonded and cracked mutually in the using process of the polymer fiber mattress core, the mattress core is collapsed, the resilience force is reduced, and the using feeling of customers is directly influenced, so that the forming temperature is very important in the production process of the mattress core for improving the performance index of the mattress core.
The method is to blow hot air to the fiber filaments, but the fiber filaments are easy to swing along with air flow and cannot drop evenly, so that the winding effect among the fiber filaments is affected; or the space is sealed and heated, but when the fiber temperature is high, a large amount of water vapor is generated when the fiber falls into water, if the water vapor cannot be timely discharged, the pressure of the sealed space is increased, and a certain risk exists.
Disclosure of Invention
In order to solve the problems of easy debonding and cracking in the process of forming the high polymer fiber mattress core, thereby causing collapse of the mattress core, the invention provides a high polymer fiber mattress core forming method and a device thereof, and adopts the following technical scheme:
a method for forming a polymeric fiber mattress core, comprising the steps of:
1) Adding POE and PE resin particles into a mixer, stirring and mixing uniformly, and then adding into a feeding unit;
2) Starting a melting unit, and starting a melting unit motor after the temperature of melting unit equipment reaches a set value and is stable;
3) Starting a motor of a feeding unit, so that molten materials flow out through a spinneret plate on a spinneret die and drop into a shaping water tank below in a fibrous form;
4) Starting a heat preservation and heating device, and keeping the temperature in the area between the discharge port of the filament spraying die head of the melting unit and the shaping water tank at 80-200 ℃ through the heating and heat preservation device when the molten material falls into the shaping water tank;
5) After the molten materials are shaped in the water tank, the molten materials are conveyed to the shearing unit through the conveying unit for cutting and packaging.
Preferably, in step 4), when the molten material falls into the water tank, water vapor in the region between the discharge port of the die head of the melting unit and the water tank may be discharged to the outside.
Preferably, in the step 4), the temperature of the area between the melt unit spinning die head and the shaping water tank is kept within the range of 100-150 ℃ under the working state of the heating and heat preserving device.
The utility model provides a polymer fiber mattress core forming device, includes feeding unit, melting unit, design basin, delivery unit and shearing and packaging unit, its characterized in that, be provided with heating heat preservation device between melting unit and the design basin, heating heat preservation device includes fixed station, driving motor, rolling axle, annular guide rail and flexible heating heat preservation, fixed station fixed connection is in melting unit, rolling axle and the coaxial fixed connection of driving motor output shaft, annular guide rail is fixed and is located melting unit discharge gate below with the fixed station, and flexible heating heat preservation is along annular guide rail length direction sliding connection in annular guide rail below and both ends are all fixed with the rolling axle.
Preferably, the annular guide rail is provided with a sliding block in a sliding manner, a supporting rib is fixedly connected below the sliding block, the flexible heating heat-preserving layer is fixedly connected with the supporting rib, the output shaft of the driving motor is also coaxially and fixedly connected with a roller, and a traction rope fixedly connected with the sliding block is arranged on the roller.
Preferably, the flexible heating insulation layer is composed of a heating layer, a high-temperature adhesive layer and a heat insulation layer which are sequentially distributed and connected from inside to outside.
Preferably, the thermal insulation layer comprises an upper thermal insulation layer and a lower thermal insulation layer, the upper thermal insulation layer is of an integrated structure and is fixedly connected with the supporting ribs, the lower thermal insulation layer is provided with a plurality of groups, and the lower thermal insulation layers are sequentially adhered and connected below the upper thermal insulation layers.
Preferably, the heat insulation layer is a silicon dioxide aerogel felt, the thickness is 1-2 mm, and the density is 100-400 kg/m 3.
Preferably, the heating layer is a carbon nanotube film.
Preferably, a temperature sensor positioned at the inner side of the flexible heating heat-preserving layer is arranged in the annular guide rail, a controller is fixedly connected to the fixed table, the temperature sensor is connected with a signal input end of the controller, and a switch control circuit of the driving motor and the heating layer is connected with a signal output end of the controller.
The invention has the beneficial effects that:
1. The heating and heat-preserving device is used for carrying out airtight heat preservation on the area between the spinning die head and the shaping water tank, so that the temperature is still higher when the fiber yarn falls into the water surface, the winding and bonding effects are good, and the performances of the polymer fiber mattress core are effectively improved;
2. The heat insulating layer adopts the form of integral type upper heat insulating layer and multiunit lower heat insulating layer, and the lower extreme of lower heat insulating layer floats at the design basin surface of water for a large amount of high-pressure vapor that the molten material formed in falling into the aquatic accessible is discharged between lower heat insulating layer and the surface of water, has eliminated the risk that airtight space pressure increase exists.
Drawings
FIG. 1 is a schematic view of the structure of the present invention
FIG. 2 is a schematic diagram showing a connection structure between a heating and heat-preserving device and a melting unit
Fig. 3 and 4 are schematic diagrams of heating and heat-preserving device
FIG. 5 is a schematic view of a heating and insulating device
The device comprises a 1-feeding unit, a 2-melting unit, a 3-heating and heat-preserving device, a 4-shaping water tank, a 5-conveying unit, a 6-shearing unit, a 7-spinning die head, an 8-fixed table, a 9-annular guide rail, a 10-supporting rib, an 11-sliding block, a 12-driving motor, a 13-roller, a 14-traction rope, a 15-rolling shaft, a 16-flexible heating and heat-preserving layer, a 17-heating layer, a 18-high-temperature adhesive layer, a 19-heat-preserving layer, a 1901-upper heat-preserving layer, a 1902-lower heat-preserving layer, a 20-temperature sensor, a 21-wire, a 22-heat-preserving pad and a 23-controller.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the description of the invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the view direction or positional relationships, merely to facilitate describing the invention, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the invention.
A method for forming a macromolecular fiber mattress core comprises the following steps:
1) POE and PE resin particles are added into a mixer according to a certain proportion, and the POE and PE resin particles are added into a feeding unit 1 after being stirred and mixed uniformly;
2) Starting a melting unit 2, setting the temperature range to be 200 ℃, and starting a motor of the melting unit 2 after the equipment temperature of the melting unit 2 reaches a set value and is stabilized for 20-60 min;
3) Starting a motor of the feeding unit 1, so that molten materials flow out through a spinneret plate on the spinneret die head 7 and drop into a shaping water tank 4 below in a fibrous form;
4) Starting a heat preservation and heating device 3, and keeping the temperature in the area between the discharge port of the spinning die head 7 of the melting unit 2 and the shaping water tank 4 within the range of 100-150 ℃ through the heating and heat preservation device 3 in the process that the molten material falls into the shaping water tank 4;
5) After the molten materials are shaped in the shaping water tank 4, the molten materials are conveyed to the shearing unit 6 for cutting and packaging through the conveying unit 5.
The utility model provides a polymer fiber mattress core forming device, as shown in fig. 1-5, including feeding unit 1, melting unit 2, design basin 4, conveying unit 5 and the shearing unit 6 that set gradually, be connected with heat preservation heating device 3 between the spinning die head 7 below of melting unit 2 and the design basin 4 top, heat preservation heating device 3 comprises fixed station 8, annular guide rail 9, brace bar 10, driving motor 12, gyro wheel 13, receipts spool 14, flexible heating heat preservation 16, fixed station 8 and spinning die head 7 fixed connection, driving motor 12 is fixed in fixed station 8 top, be provided with heat insulating pad 22 between driving motor 12 and the fixed station 8, gyro wheel 13 and receipts spool 14 top-down in proper order with driving motor 12 output shaft coaxial fixed connection, annular guide rail 9 and fixed station 8 fixed connection just are located the spinning die head 7 under, be provided with the spout on the annular guide rail 9, the spout sliding connection has multiunit slider 11, the cover is equipped with haulage rope 14 on the gyro wheel 13, haulage rope 14 passes multiunit slider 11 in proper order and links firmly between slider 11, support bar 11 below fixed connection has brace bar 10, flexible guide rail 16 is fixed with the receipts spool 16 in the inside of slider 11, and the flexible heating layer is fixed connection 16 is along annular guide rail 16 and the annular guide rail 16 is fixed at the 16 is fixed in the same direction of the flexible heating layer of the annular guide rail 15 and the flexible layer is passed through the heat preservation 16, the flexible layer of the rotation 15 is fixed on the flexible heating layer of 16 is fixed to the other end of the flexible axis of roll 16 is along the side of the flexible heating 16, one end of the flexible layer is fixed 15 and the flexible layer of the flexible axis of roll 15 is fixed in the direction of the axis of rotation is the axis of the thermal insulation is the axis of the thermal insulation is.
The flexible heating insulation layer 16 is shown in fig. 4, and is composed of a heating layer 17, a high-temperature adhesive layer 18 and an insulation layer 19 which are sequentially distributed and connected from inside to outside, wherein the heating layer 17 is made of carbon nanotube films with the length of 100-300 μm, the insulation layer 19 is a silicon dioxide aerogel felt with the thickness of 1mm and the density of 200kg/m 3, the insulation layer 19 comprises an upper insulation layer 1901 and a lower insulation layer 1902, the upper insulation layer 1901 is an integral silicon dioxide aerogel felt, the heating layer 17 is fixedly connected with the upper insulation layer 1901 through the high-temperature adhesive layer 18, the upper insulation layer 1901 is fixedly connected with the supporting ribs 10, the lower insulation layer 1902 is a sheet silicon dioxide aerogel felt with the length of 5-10 cm and the width of 2-5 cm, the lower insulation layer 1902 is provided with a plurality of groups, the adjacent two groups of lower insulation layers 1902 are mutually covered and are adhered with the upper insulation layer 19, moreover, the lower ends of the lower insulation layers are contacted with the water surface inside the shaping water tank 4, and contact strips with the width of 3-6 cm are formed on the water surface.
In addition, a controller 23 is arranged on the fixed table 8, a temperature sensor 20 is further arranged on the inner side of the flexible heating heat-preserving layer 16, the temperature sensor 20 is in signal connection with a signal input end of the controller 23, a switch control circuit of the driving motor 12 and the heating layer 17 is in signal connection with a signal output end of the controller 23, when the melting unit works and the temperature measured by the temperature sensor 20 is lower than a preset value, the controller 23 drives the flexible heating heat-preserving layer 16 to form a closed space on the annular guide rail 9 by controlling the driving motor 12, meanwhile, the switch control circuit of the heating layer 17 is controlled to be started, the heating layer 17 starts to heat, and after the heating to a set temperature, the controller 23 controls the heating layer 17 to stop working.
The working principle of the device is as follows:
when the melting unit 2 works, the driving motor 12 is started through the controller 23, the driving motor 12 drives the roller 13 and the winding shaft 15 to rotate simultaneously, the roller 13 drives the sliding block 11 to slide along the circumferential direction of the annular guide rail 9 through the traction rope 14, thereby driving the flexible heating heat-insulating layer 16 and the supporting ribs 10 to slide along the annular guide rail 9 until the space below the annular guide rail 9 is surrounded into a relatively airtight space, at the moment, the heating layer 17 is controlled by the controller 23 to start heating, the inner space of the flexible heating heat-insulating layer 16 begins to heat, molten materials fall into the shaping water tank 4 in the airtight space, and because the molten materials generate a large amount of water vapor in the water contact process, the contact surface of the lower heat-insulating layer 1902 and the water surface can serve as a rapid pressure release outlet of the water vapor, the risk of pressure increase in the airtight space is eliminated, after the production is finished, the heating layer 17 stops heating, the driving motor 12 drives the roller 13 to rotate anticlockwise, the sliding block 11 and the flexible heating heat-insulating layer 16 are driven by the traction rope 14 to slide along the guide rail, and the flexible heating heat-insulating layer 16 is wound onto the winding shaft 15, and finally the driving motor 12 is closed.
In the same production process and parameters, the temperature of the fiber filaments in the region between the spinning die head 7 and the shaping water tank 4 is 30-80 ℃ in the production process under the conditions that the region between the spinning die head 7 and the shaping water tank 4 is not sealed and heated, and the temperature of the fiber filaments is lower as the temperature is higher as the fiber filaments are closer to the water surface, the test data are shown in the following table, and under the conditions that the region between the spinning die head 7 and the shaping water tank 4 is not sealed and heat-preserved, the temperature is lower when the fiber filaments fall into the water surface even begin to crystallize and solidify due to the fact that the air flow is larger in the region, and the winding and bonding effects are poor; according to the method for forming the high polymer fiber mattress core, the region between the spinning die head 7 and the shaping water tank 4 is heated and insulated, so that the temperature is still higher when the fiber falls into the water surface, the winding and bonding effects are good, the collapse hardness loss and the compression permanent deformation are obviously reduced, the compression damage frequency is obviously improved, and the performances of the high polymer fiber mattress core are effectively improved.
| Compression set | Loss of indentation hardness | Number of compression failures | Fiber bonding force | |
| This embodiment | 20% | ≤10% | 10 Ten thousand times | 5N |
| Prior Art | 50% | ≥30% | 0.5 Ten thousand times | 0.3N |
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that modifications may be made without departing from the principles of the invention, and such modifications are intended to be within the scope of the invention.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211691400.2A CN115948867B (en) | 2022-12-28 | 2022-12-28 | A polymer fiber mattress core molding method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211691400.2A CN115948867B (en) | 2022-12-28 | 2022-12-28 | A polymer fiber mattress core molding method and device |
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| CN115948867A CN115948867A (en) | 2023-04-11 |
| CN115948867B true CN115948867B (en) | 2024-11-22 |
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| CN110998006A (en) * | 2017-08-10 | 2020-04-10 | 株式会社可乐丽 | Meltblown nonwoven fabric, laminate using the same, method for producing meltblown nonwoven fabric, and meltblown device |
| CN211147324U (en) * | 2019-11-07 | 2020-07-31 | 巩义市泛锐熠辉复合材料有限公司 | High-efficient radiating furnace body insulation construction that keeps warm |
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| MX157418A (en) * | 1982-09-24 | 1988-11-22 | Scapa Inc | FABRIC FELT FOR WINDOW CONVEYOR BELT USED IN PAPER MAKING MACHINES |
| JPH0726463A (en) * | 1993-07-06 | 1995-01-27 | Toyobo Co Ltd | Production of nonwoven fabric |
| US5665300A (en) * | 1996-03-27 | 1997-09-09 | Reemay Inc. | Production of spun-bonded web |
| US6156682A (en) * | 1998-09-18 | 2000-12-05 | Findlay Industries, Inc. | Laminated structures with multiple denier polyester core fibers, randomly oriented reinforcement fibers, and methods of manufacture |
| US8029633B2 (en) * | 2009-01-27 | 2011-10-04 | Milliken & Company | Method of forming a consolidated fibrous structure |
| CN106811871B (en) * | 2017-01-13 | 2018-12-14 | 山东大学 | A kind of preparation method of conduction-toughening spunbond compound nonwoven cloth |
| CN210127284U (en) * | 2019-05-20 | 2020-03-06 | 扬州天富龙科技纤维有限公司 | A heat distribution type can automatically clean the spinning box |
| CN212103208U (en) * | 2020-04-26 | 2020-12-08 | 浙江朝隆纺织机械股份有限公司 | A double layer web forming machine |
| CN114381867A (en) * | 2021-12-31 | 2022-04-22 | 江苏华亚化纤有限公司 | Preparation method of full-dull I-shaped polyester textile fabric |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110998006A (en) * | 2017-08-10 | 2020-04-10 | 株式会社可乐丽 | Meltblown nonwoven fabric, laminate using the same, method for producing meltblown nonwoven fabric, and meltblown device |
| CN211147324U (en) * | 2019-11-07 | 2020-07-31 | 巩义市泛锐熠辉复合材料有限公司 | High-efficient radiating furnace body insulation construction that keeps warm |
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