CN104975434A - Three-dimensional elastic pad technology of multiple wires - Google Patents

Abstract

The invention mainly provides a process for manufacturing a three-dimensional elastic cushion with multiple wires, which comprises the following steps: melting a plastic raw material, discharging at least two ejection holes respectively; (b) pressing at least two kinds of yarn diameter to form: an extrusion spinning mold is connected with each ejection hole, the extrusion spinning mold is provided with at least two line body extrusion areas which respectively correspond to the ejection holes, the first line body pressing area and the second line body extrusion area respectively have different aperture sizes and different aperture setting densities, so that plastic raw materials entering the ejection holes respectively pass through the first line body pressing area and the second line body extrusion area and then are extruded with at least two yarns with different diameters and densities for molding. The process for making multi-thread three-dimensional elastic cushion includes an extrusion spinning die, which is divided into at least two thread extrusion zones with different aperture sizes and aperture densities, so as to form at least two layers of three-dimensional elastic yarn structures with different aperture sizes and densities.

Description

Three-dimensional elastic pad technology of multiple wires

technical field

The present invention relates to the technology of the three-dimensional elastic pad, especially for the production of the three-dimensional elastic pad structure with more than two tangled layers and different yarn thicknesses and densities.

Background technique

Cushion structure is often used in furniture, vehicles, machinery and other supplies, especially the parts that are in contact with the human body. It can mainly provide cushioning, prevent bruises, and improve the comfort of use; common forms of cushions include chair cushions, Cushions, guardrails, handles, mattresses, etc., which are mainly used in the parts that need to provide the aforementioned requirements, are filled with materials with cushioning and elastic properties, such as air, liquid, foam, sponge, spring, elastic cotton yarn, etc. way to be achieved.

For further analysis of the elastic cotton yarn, its structure is formed by intertwining and curling of several yarns. The yarns are combined in the majority to make the whole cushion body supportive, and there are gaps between the yarns, so as to achieve automatic Restorative cushioning effect; compared with other elastic materials, this kind of elastic cotton yarn has better sweepability and air permeability, and is more sensitive to restore elasticity. When using it, it can be cut according to the structure and assembled And the operation in use is also quite simple, and can be widely used in various fields.

The existing manufacturing process of elastic cotton yarn, such as the mesh structure and manufacturing method disclosed in the domestic invention patent No. 083101192, uses thermoplastic elastic resin as the starting material in the manufacturing process. At a temperature 10°C-80°C higher than the melting point, the molten thermoplastic elastic resin is injected downward to form continuous linear loops in the melted state, and individual loops are in contact with each other to form a three-dimensional random loop structure. At the same time, it is clamped by a stretching device, and then cooled. Once cooled, it is annealed at a temperature at least 10°C lower than the melting point. Among them, the fineness of the continuous linear body is between 300-100,000 deniers, and there are no regular piles. The diameter is 2-50mm, and the apparent density of the network structure is 0.005-0.1g/cm.

There is another method for making elastic cotton yarn, such as the method for manufacturing air-permeable elastic pads disclosed in the domestic invention patent No. 090126977. The process of the method includes: a: Feed material melting: prepare plastic raw materials with elastic properties, and heat melting; b: blow molding: the plastic is blown to form a hollow tubular plastic strip; c: roll forming: at least one auxiliary heater is added to the place where the plastic strip is sent out of the blowing nozzle, and the plastic strip is sent to two Between the guide wheel and the adjustment wheel that are adjacent to each other and rotate at a constant speed relative to each other, part of the adjustment wheel and the guide wheel is immersed in the cooling tank, so that the plastic strip is formed into a curl on the guide wheel, and is pressed by the adjustment wheel. Formed plastic strips to control the thickness; d: Cooling: Before the plastic strips enter the cooling tank, each plastic strip is fused to each other at several points, so that the joints form a joint, and enter the cooling tank to cool and solidify, so that each plastic strip is formed. Irregularly staggered air holes; e: Cutting: The long plastic strips are formed and connected to each other. After being conveyed out of the guide wheel, they are cut one by one according to the set specifications to form a piece of elastic pad.

There is also a process and structure of elastic cotton yarn, such as the three-dimensional network structure disclosed in the U.S. Patent No. US7,993,794, and the method and equipment for producing the three-dimensional network structure, which are made of prepared thermoplastic resin raw materials, wherein The resin forms multiple helices and random entanglements to extrude partially thermally bonded filaments upon liquid cooling to obtain a network structure with single or multiple regions of high density along a A net-like structure with sides or parallel sides, and the thickness direction of the net-like structure is arranged.

In the above-mentioned processes, although the same is the manufacturing technology of elastic cotton yarn, and the finished products are all composed of curled and entangled yarns; however, the aforementioned processes still belong to elastic cotton pads with different structures, and the different manufacturing methods used Technology, the first case is to make a single wire diameter size, single raw material, and elastic mesh structure with the same density; the second case is to manufacture hollow yarn, single wire diameter size, single raw material, and elastic mesh structure with the same density Net structure; the third case is an elastic net structure with a single wire diameter, a single material, and different densities.

Contents of the invention

In the above-mentioned existing processes, none of the elastic cotton yarns having different wire diameters and densities at the same time, or even using different raw materials at the same time, has been disclosed. Elastic mesh structures with different wire diameters and different densities; therefore, the present inventors provide a three-dimensional elastic pad process that can be completed in a consistent manner to form multiple layers and multiple wires simultaneously for the process of this type of elastic cotton yarn.

In view of this, the three-dimensional elastic cushion process of multiple wires disclosed in the present invention includes the following steps:

(a) Molten a plastic raw material to be discharged from at least two injection ports: a plastic raw material is melted in a melting furnace, which has a material inlet for pouring the plastic raw material, and the predetermined position of the melting furnace is provided with at least The two injection ports carry out the discharge respectively;

(b) forming yarns of at least two wire diameters: a pressing spinning mold is used to connect with each of the injection ports, and the pressing spinning mold has at least a first thread body pressing area and a second thread body pressing area. Corresponding to each of the injection ports, the first thread body pressing area and the second thread body pressing area have different aperture sizes and different aperture settings, so that the plastic raw materials entering the injection ports can pass through the first thread body respectively. At least two kinds of yarns with different wire diameters and densities are extruded respectively after the pressing area and the second thread body pressing area;

(c) Thickness adjustment: use a thickness adjustment device installed under the water surface of the water tank to connect each of the yarns extruded by the extrusion spinning die, and use a thickness adjustment mold to gather and compress each of the yarns together to form a preset the thickness dimension;

(d) Entanglement of each thread body forming: each thread yarn starts to be entangled with each other after passing through the thickness adjusting device and cooling water, so as to form a three-dimensional elastic yarn with continuous shape and at least two layers of each thread thread;

(e) Guidance and cutting and discharging: use a guiding device to guide the three-dimensional elastic yarn out of the water surface at a preset speed, and connect the guiding device with a cutting device to continuously guide the extended The three-dimensional elastic yarn is cut to form a preset shape and size, and a three-dimensional elastic pad formed by each of the yarns with at least two layers of different wire diameters and different densities is completed.

The present invention also provides a three-dimensional elastic cushion process of multiple wires, which includes the following steps:

(a) Melting at least two plastic materials and discharging them from at least one injection port: melting at least two plastic materials in a melting furnace, and discharging them from at least one injection port of each melting furnace;

(b) Pressing yarns of at least two kinds of plastic materials and two kinds of wire diameters: use a pressing spinning mold to connect with each of the injection ports, and the pressing spinning mold has at least a first thread pressing area and a second thread The body pressing area corresponds to each of the injection ports, and each of the first line body pressing area and the second line body pressing area has different aperture sizes and different aperture settings, so that the plastic raw materials entering the injection ports Extruding at least two types of yarns with different wire diameters and densities after respectively passing through the first thread body pressing area and the second thread body pressing area;

(c) Thickness adjustment: use a thickness adjustment device installed under the water surface of the water tank to connect each of the yarns extruded by the extrusion spinning die, and use a thickness adjustment mold to gather and compress each of the yarns together to form a preset the thickness dimension;

(d) entanglement of the thread body forming: the thread yarns are entangled with each other after passing through the thickness adjusting device and the cooling water, so as to form a three-dimensional elastic yarn having a continuous shape and being at least two layers of the thread threads;

(e) Guidance and cutting and discharging: use a guiding device to guide the three-dimensional elastic yarn out of the water surface at a preset speed, and connect the guiding device with a cutting device to continuously guide the extended The three-dimensional elastic yarn is cut to form a predetermined shape and size, and a three-dimensional elastic pad formed by each of the yarns with at least two layers of different plastic materials, different wire diameters, and different densities is completed.

In an embodiment of the present invention, the first wire body pressing area has an aperture size in the range of 0.5-3.0 mm; the second wire body pressing area has an aperture size in the range of 0.1-1.0 mm.

In one embodiment of the present invention, the numerical value range of the aperture distance of the second wire body pressing area is 10-20mm; the numerical value range of the aperture distance size of the first wire body pressing area is 10-50mm; each of the first wire body The numerical value range of the aperture distance between the two sides of the body pressing area and the second wire body pressing area is 1-50mm.

In one embodiment of the present invention, the distance from the extrusion spinning mold to the water surface of the tank is 100-1000mm.

In one embodiment of the present invention, wherein the guiding device guides the three-dimensional elastic yarn from the thickness adjusting device to the cutting device at a constant speed, and the guiding speed ranges from 0.1-3 m/min.

In an embodiment of the present invention, the thickness adjusting device has a thickness adjusting die which is relatively linearly displaced to adjust the overall width of the three-dimensional elastic yarn.

In one embodiment of the present invention, the plastic raw material is polyolefin copolymer PEO, polyolefin and rubber copolymer PET, nylon-based elastomer Nylon, and polyurethane-based elastomer PU.

In one embodiment of the present invention, the three-dimensional elastic pad has a support layer and an elastic layer, wherein the support layer is composed of entangled yarns with a larger wire diameter and a density of 15-100 kg/m ³ ; The elastic layer is composed of entangled yarns with small wire diameters and a density of 5-90 kg/m ³ .

In the above-mentioned embodiment, wherein the three-dimensional elastic pad has a support layer and an elastic layer, wherein the support layer is made of a plastic material, which is made of yarn with a larger diameter and a density of 15-100 kg/m ³ Composed of joint entanglement; the elastic layer is formed by the application of another plastic material, and is composed of joint entanglement of yarns with a smaller diameter and a density of 5-90 kg/m ³ .

Compared with the prior art, the present invention has the following beneficial effects:

1. The three-dimensional elastic mat process of multiple wires of the present invention has a pressing spinning mold, which is divided into at least two wire body pressing areas with different aperture sizes and aperture densities, so as to form at least two layers of three-dimensional elastic pads with different apertures and densities. yarn structure.

2. A three-dimensional elastic mat process for multiple wires of the present invention uses a thickness adjustment device, which has the function of thickness adjustment, to gather and entangle each of the pressed yarns in a preset space to form a pre-set A three-dimensional elastic yarn structure with a thickness.

3. The three-dimensional elastic pad process of multiple wires of the present invention, the three-dimensional elastic pad manufactured by it has at least two layers of support layers and elastic layer structures with different wire diameters and different densities, so that it has high support parts and high elasticity respectively at the same time. The cushioning part is located on an elastic pad, and at the same time achieves the dual effects of high supporting force and good cushioning performance.

4. A three-dimensional elastic mat process for multiple wires of the present invention can be further combined with separate melting furnaces to melt different raw materials respectively, and corresponding to the wire body pressing areas with different aperture sizes and different aperture settings density, it can be entangled to form different The material layer is applied to an elastic pad, and at the same time achieves the function of material matching and application transformation.

Description of drawings

Fig. 1 is a manufacturing flow chart of a preferred embodiment of the present invention.

Fig. 2 is a schematic diagram of a process tool in a preferred embodiment of the present invention.

Fig. 3 is a schematic diagram of a pressing spinning mold in a preferred embodiment of the present invention.

Fig. 4 is a view of the use state of the thickness adjusting device in a preferred embodiment of the present invention.

Fig. 5 is a schematic diagram of a three-dimensional elastic pad according to a preferred embodiment of the present invention.

FIG. 6 is a manufacturing flow chart of another embodiment of the present invention.

Fig. 7 is a schematic diagram of a process tool according to another embodiment of the present invention.

Fig. 8 is a schematic diagram of a three-dimensional elastic pad according to another embodiment of the present invention.

Fig. 9 is a schematic diagram of a process tool according to yet another embodiment of the present invention.

Fig. 10 is a schematic diagram of a pressing spinning mold according to another embodiment of the present invention.

Fig. 11 is a schematic diagram of a three-dimensional elastic pad according to another embodiment of the present invention.

Fig. 12 is a schematic diagram of a pressing spinning mold according to another embodiment of the present invention.

Fig. 13 is a schematic diagram of a process tool in a further embodiment of the present invention.

[Symbol description]:

10 Melting Furnace 40 Sink 11 Feed Port

50 Thickness adjustment device 12, 13 Injection outlet 51 Thickness adjustment mold

20 Extrusion spinning mold 60 Guiding device 21. The first thread body extrusion area

22 The second thread pressing area 23 The third thread pressing area 70 Cutting device

30 three-dimensional elastic yarn 211, 221, 231 yarn punching hole 31, 32 thread yarn

80 three-dimensional elastic pad 30 three-dimensional elastic yarn 81 support layer

31, 32, 33 yarns 82 elastic layer 83 middle layer.       

Detailed ways

First, please refer to Fig. 1 to Fig. 5, the three-dimensional elastic cushion process of multiple wires provided by the present invention mainly includes the following steps:

(a) Molten plastic raw material is discharged from the second injection port (12, 13):

Melting a plastic raw material in a melting furnace 10, which has a material inlet 11 for pouring the plastic raw material, and the preset position of the melting furnace 10 is provided with two injection ports (12, 13) for discharging materials respectively; The plastic raw material can be polyolefin copolymer PEO, polyolefin and rubber copolymer PET, nylon-based elastomer Nylon, and polyurethane elastomer PU and other materials.

(b) molding of the yarns (31, 32) of two kinds of wire diameters:

Utilize a pressing spinning mold 20 to be connected with each of the injection ports (12, 13), and the pressing spinning mold 20 has a first thread body pressing area 21 and a second thread body pressing area 22 to correspond to each of the injection ports respectively. Exit (12,13), each this first thread body pressing area 21 and the second thread body pressing area 22 are respectively provided with some yarn pressing holes (211,221) that are covered with, and it has different aperture size and different Aperture density is set, so that the plastic material that each injection port (12, 13) enters passes through each of the first wire body pressing area 21 and the second wire body pressing area 22 respectively, and then extrudes two wires with different wire diameters and densities. Kind of yarn (31,32) molding.

(c) Thickness adjustment:

Connect each of the yarns (31, 32) extruded by the extrusion spinning die 20 with a thickness adjustment device 50 arranged under the water surface of a water tank 40, and use a thickness adjustment mold 51 to each of the yarns (31, 32) 32) Concentrate and compress together to form a preset thickness dimension; the thickness adjustment mold 51 is two corresponding left and right molds, and adjusts the overall width of each of the yarns (31, 32) in a relative linear displacement manner.

(d) entangle each of the thread bodies (31, 32) to form:

Each of the yarns (31, 32) starts to intertwine with each other after passing through the thickness adjusting device 50 and entering the cooling water of the tank to form a three-dimensional elastic yarn 30 having a continuous shape and being two layers of each of the yarns.

(e) Guidance and cutting and discharging:

Utilize a guide device 60 to guide the three-dimensional elastic yarn 30 out of the water surface at a preset speed, and connect the guide device 60 with a cutting device 70, and cut the three-dimensional elastic yarn 30 that is continuously guided and extended A predetermined shape and size are formed to complete a three-dimensional elastic pad 80 formed by two layers of yarns with different wire diameters and different densities.

With the help of the above process, the three-dimensional elastic cushion process with multiple layers and multiple wires is simultaneously completed with the consistent operation of the production line. The pressed yarn mold 20 forms at least two layers of three-dimensional elastic yarn structures with different apertures and different densities, and simultaneously achieves The dual effects of high supporting force and good cushioning, together with the thickness adjustment device 50, has the thickness adjustment function, so that the three-dimensional elastic yarn 30 meets the preset thickness before cutting, and can also form preset yarns (31 , 32) The number of layers or the change of the yarn material of each layer. the

In order to further understand the structural features of the present invention, the use of technical means and the effect expected to be achieved, the usage of the present invention is described as follows:

The present invention proceeds sequentially through the aforementioned five processes, and manufactures the three-dimensional elastic pad 80 with the consistent operation of a production line. First, in the (a) step, the melting furnace 10 is divided into two outlets (12, 13) for discharging; and then in the step (a). (b) Cooperate with the setting of the pressing spinning mold 20, and each of the first thread body pressing area 21 and the second thread body pressing area 22 are respectively arranged on it to correspond to each of the injection ports (12, 13) , using each of the first thread body pressing area 21 and the second thread body pressing area 22 to have a number of yarn pressing holes (211, 221) with different aperture sizes and different densities to set and distribute, so that each of the yarn pressing holes (211, 221) pressing each of the yarns (31, 32) with preset wire diameters and densities; then in step (c), use the thickness adjustment device 50 installed in the water tank 40 to connect and concentrate Each of the yarns (31, 32) that are extruded, and then limit the space where each of the yarns (31, 32) can be curled and tangled, that is, the preset thickness that can be formed; then step (d) in the water tank 40 Each of the yarns (31, 32) restricted by space starts to crimp and entangle with each other due to the temperature drop, so as to form a three-dimensional elastic yarn 30 with a preset thickness and continuous extension; finally in step (e) use the guide The guide device 60 pushes and guides the entangled three-dimensional elastic yarn 30 to the cutting device 70 , and cuts the length and width according to the requirements, thus completing a three-dimensional elastic pad 80 .

The pressing spinning mold 20 of the present invention has a first thread body pressing area and a second thread body pressing area (21, 22), and the difference is that each of the first thread body pressing area 21 and the second thread body pressing area 22 Each of the yarn pressing holes (211, 221) with different pressing aperture sizes, and the distance between each of the yarn pressing holes (211, 221) are also different; The yarn pressing hole 211 in the pressing area 21 has an aperture size range of 0.5-3.0mm, and its aperture distance is relatively large, that is, the density is low, and its size range is 10-50mm; the second thread body pressing area 22 has the The numerical range of the aperture size of the yarn pressing hole 221 is 0.1-1.0mm, and its aperture distance is relatively small, that is, the density is high, and its numerical value range is 10-20mm; each of the first thread body pressing area 21 and the second thread body The numerical value range of the aperture distance between each of the yarn pressing holes (211, 221) separated on both sides of the pressing area 22 is 1-50 mm.

In the present invention, the distance dimension (d) between the pressing spinning mold 20 and the water surface of the water tank 40 is 100-1000 mm; the guiding device 60 guides the three-dimensional elastic yarn (30) at a constant speed and is pulled by the thickness adjusting device 50 To the cutting device 70, the numerical range of its guiding speed is 0.1-3 m/min.

Please refer to Fig. 5, the three-dimensional elastic pad 80 of the present invention has a supporting layer 81 and an elastic layer 82, wherein the supporting layer 81 is composed of yarns 32 with larger wire diameters and lower density. 32. The numerical range of the entanglement density is about 15-100 kg/m ³ , and the denier number is 1500-80000D; the elastic layer 82 is composed of yarns 31 with smaller wire diameters and higher densities. The yarns 32 are entangled The numerical range of density is about 5-90 kg/m ³ , and the Deny number is 60-10000D. The density described in the present invention is calculated by the ratio of the mass of the product to the measured apparent volume, and the volume includes the intertwined voids of each of the yarns (31, 32).

The present invention utilizes the pressing spinning mold 20, which is divided into at least a first thread body pressing area 21 and a second thread body pressing area 22 with different aperture sizes and aperture densities, which are respectively provided with preset apertures and densities. Each of the yarn pressing holes (211, 221), so after respectively connecting the feeding of each of the injection ports (12, 13), each of the first thread body pressing area 21 and the second thread body pressing area 22 are The three-dimensional elastic yarn 30 structures of at least two layers with different pore diameters and densities are respectively pressed to solve the problem that the existing technology can only produce the same pore diameter or the same density.

The present invention utilizes the thickness adjusting device 50, which has a thickness adjusting function, so as to concentrate and entangle the extruded yarns (31, 32) in the predetermined space between the thickness adjusting dies 51, By forming the structure of the three-dimensional elastic yarn 30 with a preset thickness, the operation of subsequent thickness cutting can be saved, so as to achieve the effect of reducing the manufacturing cost.

The three-dimensional elastic pad 80 produced by the process of the present invention is a support layer 81 and an elastic layer 82 structure with at least two layers of different wire diameters and different densities, so that it has a high support part and a high elastic buffer part at the same time. Compared with the existing elastic net structure with only a single layer and a single wire diameter, the three-dimensional elastic pad 80 of the present invention can simultaneously achieve the dual effects of high supporting force and good cushioning due to the different hardness on both sides. , the user can turn over and use the three-dimensional elastic pad 80 according to needs, so it is very convenient to use, that is, it has high practicability.

Please refer to Fig. 6 to Fig. 8, which are another embodiment of the present invention, the three-dimensional elastic pad process mainly includes the following steps:

(a) melt at least two kinds of plastic raw materials and discharge them at least one injection port (12, 13) respectively:

At least two plastic raw materials are respectively melted in a melting furnace 10, and are respectively discharged from at least one injection port (12, 13) of each melting furnace 10.

(b) Pressing at least two types of plastic materials and yarns of two types of wire diameters:

Utilize a pressing spinning mold 20 to be connected with each of the injection ports (12, 13), and the pressing spinning mold 20 has a first thread body pressing area 21 and a second thread body pressing area 22 to correspond to each of the injection ports respectively (12,13), each of the first thread body pressing area 21 and the second thread body pressing area 22 has a number of yarn pressing holes (211, 221) with different aperture sizes and different aperture settings density, so that each of the After the plastic raw material that injection port (12,13) enters passes through this first thread body pressing zone 21 and the second thread body pressing zone 22, respectively, at least two kinds of thread yarns (31, 31, 32) Forming.

(c) Thickness adjustment:

Connect each of the yarns (31, 32) extruded by the extrusion spinning die 20 with a thickness adjustment device 50 arranged under the water surface of the water tank 40, and use the thickness adjustment mold 51 to each of the yarns (31, 32) ) are concentrated and compressed together to form a preset thickness dimension.

(d) Entangle the shape of each line body:

Each of the yarns ( 31 , 32 ) starts to intertwine after passing through the thickness adjusting device 50 and the cooling water, so as to form at least two layers of three-dimensional elastic yarns 30 in a continuous shape.

(e) Guidance and cutting and discharging:

Utilize a guide device 60 to guide the three-dimensional elastic yarn 30 out of the water surface at a preset speed, and connect the guide device 60 with a cutting device 70, and cut the three-dimensional elastic yarn 30 that is continuously guided and extended To form a predetermined shape and size, that is to complete a three-dimensional elastic pad 80 formed by at least two layers of different plastic materials, different wire diameters, and different densities of yarns.

This embodiment mainly utilizes at least two melting furnaces 10 to melt two kinds of different raw materials, and different raw materials are fed from respective injection ports (12, 13), and each injection port (12, 13) of different raw materials is ) also correspond to the first thread body pressing area 21 and the second thread body pressing area 22 respectively, and then each of the yarns (31, 32) of different yarn materials will be pressed out in addition to different wire diameters and densities. , and then complete the process according to the same steps (c) to (e) as in the preferred embodiment; the manufactured three-dimensional elastic pad 80, each of the support layer 81 and the elastic layer 82 is made of different materials, and has The yarns (31, 32) pressed with different wire diameters and densities are then entangled and formed. Therefore, the three-dimensional elastic pad 80 of this embodiment also has the characteristics of different raw materials, and at the same time achieves the matching of raw materials and its characteristics. The effect of transformation and the richness of application make it a very practical process. Other manufacturing methods, machine tools and mold usage methods, environmental parameter settings, and expected effects are all the same as those of the foregoing embodiments.

Please refer to Fig. 9 to Fig. 11, it is yet another embodiment of the present invention, and it belongs to the manufacturing process of three-layer three-dimensional elastic pad and its implementation state, wherein this melting furnace 10 is provided with three injection ports (12, 13, 14) to Corresponding to the first line body pressing area 21, the second line body pressing area 22 and the third line body pressing area 23 (,,, and the first line body pressing area 21, the second line body pressing area 22 and the third line body pressing area The system area 23 has the yarn pressing holes (211, 221, 231) with different apertures and different density distributions.

During manufacture, the first thread body pressing area 21, the second thread body pressing area 22 and the third thread body pressing area 23 respectively press out each of the yarns (31, 32, 33) with different wire diameters and different densities. , complete the process according to steps (c) to (e) exactly the same as those in the preferred embodiment; the three-dimensional elastic pad 80 manufactured has a support layer 81 and an elastic layer 82 that are different in support and hardness. , and an intermediate layer 83, each layer is composed of yarns with different wire diameters and different densities; Compared with the existing technology and the structure of the elastic pad, the elastic pad has more changes in use and a wider range of applications, and can meet the needs of different fields, different products, and different cushioning conditions.

Please refer to Fig. 12 to Fig. 13, a further embodiment of the present invention is an implementation pattern of at least two yarns with different wire diameters and densities in a staggered shape, wherein at least two kinds of wire diameters (31, 32) are pressed in step b. Yarn molding, each of the injection ports (12, 13) is arranged in an appropriate number and at a preset position, and is connected to the pressing spinning mold 20, and is matched with each of the injection openings (12) on the pressing spinning mold 20 , 13) Corresponding to the yarn pressing holes (211, 221) of different wire diameters, at least two kinds of yarns (31, 32) that are staggered and different in diameter can be extruded to form, and the same yarns (31, 32) can be formed. 32) The pitches are also different so that different densities are produced, and there is another elastic pad with different elasticity and support. Other modes of use and expected effects are exactly the same as those of the foregoing embodiments.

To sum up the above, the multi-wire three-dimensional elastic cushion process disclosed in the present invention provides a consistent operation process of a production line, which forms more than multiple layers, and each layer has different wire diameters and different densities to achieve different supporting effects. The three-dimensional elastic pad uses each injection port to correspond to each thread body pressing area with different pressing aperture and density, and simultaneously presses each thread yarn with different thread diameters and different densities, and then adjusts the thickness and entangles it. , and guided cutting processes, the three-dimensional elastic pad manufactured has multi-layer elastic layers with different support and hardness. The yarns of each layer have different wire diameters and densities, and can be formed according to requirements. Presetting the number of yarn layers or changing the yarn material of each layer can effectively reduce the manufacturing cost, and the use of multiple raw materials makes the three-dimensional elastic pad extremely versatile in use, and can be widely used in various industries to respond to various fields According to the different needs of the products, a highly practical multi-wire elastic pad technology is obtained, so that the whole is indeed industrially practical and cost-effective.

The above descriptions are the specific embodiments of the present invention and the applied technical principles. If changes are made according to the conception of the present invention, and the functions produced by it still do not exceed the spirit covered by the description and accompanying drawings, all should be within the scope of the present invention.

Claims (10)

1. a stereo-elastic pad technique for multiple wire rod, is characterized in that, include following step:

A () melting one plastic raw material is at least two exit wound of bullet dischargings: a plastic raw material is melted melting in stove in one, and it has the feeding mouth pouring this plastic raw material into, and this predetermined patterns melting stove is provided with at least two exits wound of bullet and carries out discharging respectively;

B () gives as security the line yarn forming of system at least two kinds of wire diameters: utilize a signature system to spin mould and connect with each this exit wound of bullet and establish, this signature system spin mould have at least First Line body blanketed zone and the second Xian Tiyazhi district with correspondence respectively this exit wound of bullet respectively, this First Line body blanketed zone and the second Xian Tiyazhi district be tool different pore size size and different pore size density of setting respectively, and the plastic raw material entered to make respectively this exit wound of bullet is in respectively through extrusion wire diameter and the different at least two kinds of line yarn formings of density respectively behind this First Line body blanketed zone and the second Xian Tiyazhi district;

C () thickness adjusts: be connected with the undersurface thickness adjustment device being arranged at tank respectively this line yarn that this signature system spins the extrusion of mould institute, and utilizes a thickness adjustment mould to be concentrated each this line yarn and common compression forms the gauge preset;

D () is entangled with respectively this line body formed: respectively this line yarn then starts mutually to be entangled with after this thickness adjustment device and cooling water effect, has sequential like and a stereo-elastic yarn at least two layers of each this line yarn to be formed;

E () is guided and is cut discharging: utilize a guiding device to guide out the water surface by this stereo-elastic yarn with pre-set velocity, and connect with this guiding device with a cutting device, this stereo-elastic yarn of continuously guided extension is cut and forms preset shape and size, complete the stereo-elastic pad that respectively this line yarn with at least two layers of different wire diameter and different densities is formed.

2. a stereo-elastic pad technique for multiple wire rod, it is characterized in that, it includes following step:

A () melting at least two kinds of plastic raw materials are respectively at least one exit wound of bullet discharging: by least two plastic raw materials in one melting melting in stove respectively, and distinctly carry out discharging by each this at least one exit wound of bullet melting stove;

B () gives as security system at least two kinds of plastic raw materials and the line yarn forming of two kinds of wire diameters: utilize a signature system to spin mould and connect with each this exit wound of bullet and establish, this signature system spin mould have at least First Line body blanketed zone and the second Xian Tiyazhi district with correspondence respectively this exit wound of bullet respectively, respectively this First Line body blanketed zone and the second Xian Tiyazhi district tool different pore size size and different pore size density of setting respectively, respectively this plastic raw material entered to make respectively this exit wound of bullet is in respectively through extrusion wire diameter and the different at least two kinds of line yarn formings of density respectively behind each this First Line body blanketed zone and the second Xian Tiyazhi district;

C () thickness adjusts: be connected with the undersurface thickness adjustment device being arranged at tank respectively this line yarn that this signature system spins the extrusion of mould institute, and utilizes a thickness adjustment mould to be concentrated each this line yarn and common compression forms the gauge preset;

D () is entangled with respectively this line body formed: respectively this line yarn then starts mutually to be entangled with after this thickness adjustment device and cooling water effect, has sequential like and a stereo-elastic yarn at least two layers of each this line yarn to be formed;

E () is guided and is cut discharging: utilize a guiding device to guide out the water surface by this stereo-elastic yarn with pre-set velocity, and connect with this guiding device with a cutting device, this stereo-elastic yarn of continuously guided extension is cut and forms preset shape and size, complete the stereo-elastic pad that respectively this line yarn with at least two layers of different plasticity material, different wire diameter and different densities is formed.

3. the stereo-elastic pad technique of multiple wire rod according to claim 1 and 2, is characterized in that, it is 0.5-3.0mm that this First Line body blanketed zone has aperture size number range; It is 0.1-1.0mm that this second Xian Tiyazhi district has aperture size number range.

4. the stereo-elastic pad technique of multiple wire rod according to claim 1 and 2, is characterized in that, its aperture distance size number range of this second Xian Tiyazhi district is 10-20mm; Its aperture distance size number range of this First Line Ti Yazhi district is 10-50mm; The aperture distance size number range that this First Line body blanketed zone and the second both sides, Xian Tiyazhi district separate is 1-50mm.

5. the stereo-elastic pad technique of multiple wire rod according to claim 1 and 2, is characterized in that, wherein this signature system spins mould to the distance dimensional values of this tank water surface is 100-1000mm.

6. the stereo-elastic pad technique of multiple wire rod according to claim 1 and 2, it is characterized in that, wherein this guiding device guides this stereo-elastic yarn by this thickness adjustment device drawing to this cutting device with constant speed, and the number range of its guiding speed is 0.1-3 m/min.

7. the stereo-elastic pad technique of multiple wire rod according to claim 1 and 2, is characterized in that, wherein this thickness adjustment device has a thickness adjustment mould of relative linear displacement, to adjust the overall width of this stereo-elastic yarn.

8. the stereo-elastic pad technique of multiple wire rod according to claim 1 and 2, it is characterized in that, wherein this plastic raw material is the material of polyolefin copolymer PEO, polyolefin and rubbery copolymer PET, nylon based elastomers Nylon, polyurethanes based elastomers PU.

9. the stereo-elastic pad technique of multiple wire rod according to claim 1 and 2, is characterized in that, wherein this stereo-elastic spacer has a supporting layer and posterior limiting, and wherein this supporting layer is that wire diameter size is comparatively large and density is 15-100 kg/m ³line yarn be jointly entangled with composition; This elastic layer is that wire diameter size is less and density is 5-90 kg/m ³line yarn be jointly entangled with composition.

10. the stereo-elastic pad technique of multiple wire rod according to claim 2, it is characterized in that, wherein this stereo-elastic spacer has a supporting layer and posterior limiting, and wherein this supporting layer is with the application of a plastic raw material, for wire diameter size is comparatively large and density is 15-100 kg/m ³line yarn be jointly entangled with composition; This elastic layer with the application of another plastic raw material, for wire diameter size is less and density is 5-90 kg/m ³line yarn be jointly entangled with composition.