A microporous polymer device manufacturing apparatus and method

Abstract

This invention discloses a microporous polymer device manufacturing apparatus and method, including an injection molding machine. The injection molding machine is equipped with a stationary mold, a moving mold, and a wire feeding system. The stationary mold includes a stationary template and a stationary mold insert, with the insert located in the middle of the template. The insert has interconnected stationary mold cores and flow channels. The moving mold includes a moving template and a moving mold insert, with the insert located in the middle of the template. The insert also has interconnected moving mold cores and flow channels. After the stationary and moving templates are closed, a cavity is formed between the mold cores. A pre-drilled hole is also provided to allow the micro-wires to pass through the stationary template, moving template, mold core, moving mold core, and cavity. This invention overcomes the problems of difficult mold core manufacturing, easy bending deformation, difficult demolding, easy mold damage, and high residual stress in the plastic part by using a split mold core composed of micro-wires and a wire feeding system.

Description

Technical Field

[0001] This invention relates to the field of microporous polymer processing technology, and particularly to a microporous polymer device manufacturing apparatus and method. Background Technology

[0002] Current micro-injection molding technology still follows the traditional conventional injection molding technology thinking. On the basis of ensuring the quality of mold cavity processing, after polymer plasticization, standardized processes such as injection, holding pressure, cooling and demolding are executed in sequence, and parameters such as injection speed and mold temperature are optimized to realize the manufacturing and molding of polymer microstructure devices. However, as polymer microelectromechanical systems and microsystems technology have increasingly smaller and higher requirements for the size and precision of feature structures such as micropores on polymer devices, the existing micro-injection molding technology has encountered the following problems: (1) It is difficult to manufacture the mold core of micropores with large aspect ratio. In order to form the micropore structure of the part, it is necessary to design and process a cylindrical mold core with the same shape and size as the micropore to ensure that the molten polymer cannot flow in during the injection filling stage, and the micropore is formed after cooling and demolding. At present, whether using traditional machining methods such as turning, milling and grinding, or emerging special machining methods such as electrical discharge machining, laser and electrochemical machining, it is difficult to simultaneously meet the requirements of micro-hole mold core processing with large aspect ratio and high surface quality, which makes it very difficult to manufacture micro-hole mold cores with large aspect ratio and high shape accuracy; (2) The mold core of micro-hole with large aspect ratio has the characteristics of "thin and long". During the cavity filling process, the micro-hole mold core is prone to bending deformation under the impact of high speed, high temperature and high pressure molten polymer, resulting in low micro-hole forming accuracy; (3) The tensile strength and bending strength of the mold core of micro-hole with large aspect ratio are relatively weak. During the filling stage and demolding stage, the mold core is prone to breakage and tearing. Since the micro-hole mold core and the mold are integrated, the entire cavity and even the entire forming mold are destroyed; (4) The surface area to volume ratio of high precision micro-hole mold core with large aspect ratio is small and the draft angle is extremely small, which results in a large frictional resistance between the molten polymer and the mold interface when the micro-hole mold core is demolded, which is not conducive to the smooth demolding of the parts. Furthermore, the microporous core places extremely high demands on manufacturing and assembly. Once the demolding direction is at an angle to the axis of the microporous core, it will be difficult to remove the microporous core to complete the demolding action; (5) The microporous device with a large depth-to-diameter ratio has large residual stress after molding. During the injection molding process, the molten polymer flows and fills under high-speed, high-temperature and high-pressure process conditions and undergoes phase change and other processes, which will inevitably cause the plastic part to generate large residual stress, affecting its service performance during the use of microporous polymer devices.

[0003] The lack of effective industrial processes and corresponding equipment to solve the problems existing in the injection molding manufacturing of microporous polymer devices with large aspect ratios is a pressing issue. There is an urgent need for a manufacturing method for microporous polymer devices with large aspect ratios to overcome the difficulties in mold core manufacturing, the tendency of large aspect ratio mold cores to bend and deform during molding, difficulties in demolding, easy damage to the mold core, and high residual stress in the molded part. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and to provide a method for manufacturing microporous polymer devices with a large aspect ratio, thereby overcoming the problems of difficult mold core manufacturing, easy bending deformation of the mold core with a large aspect ratio during molding, difficult demolding, easy damage to the mold core, and large residual stress in the molded plastic part.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A microporous polymer device manufacturing apparatus includes an injection molding machine. The injection molding machine is equipped with a stationary mold, a moving mold, a drive unit, and a wire feeding system. The stationary mold includes a stationary template and a stationary mold insert, the insert being located in the center of the stationary template. The insert has interconnected stationary mold cores, stationary mold runners, and a sprue bushing perpendicular to the runners. The moving mold includes a moving template and a moving mold insert, and the driving unit controls mold closing. The moving mold insert is located in the center of the moving template, and has interconnected moving mold cores, moving mold runners, and a sprue bushing symmetrical to the sprue bushing. The material feeder includes a pull rod; after the static mold and moving mold are closed, a cavity is formed between the static mold core and the moving mold core. After the static mold and moving mold are closed, a pre-drilled hole is provided to pass through the static mold plate, moving mold plate, static mold insert, moving mold insert, static mold core, moving mold core, and cavity, allowing the micro-metal wire to pass through; the wire feeding system is used to tension and tighten the micro-metal wire and adjust its die-cutting position; the molten polymer in the injection molding machine is injected through the sprue bushing; the wire feeding system includes a winder, a motor, a tensioning wheel, and a guide wheel. The winder is connected to the shaft of the motor, and the top of the winder... A pressure block adjustment groove is provided along the axial direction, and micro-wire adjustment grooves are arranged parallel to each other on both sides of the pressure block adjustment groove. Both micro-wire adjustment grooves are connected to the pressure block adjustment groove. Two pressure blocks are slidably arranged within the pressure block adjustment groove. One pressure block is fixedly connected to one end of a micro-metal wire. The other end of the micro-metal wire passes through the pressure block adjustment groove and one of the micro-wire adjustment grooves, is guided and tensioned by a tensioning wheel and a guide wheel, passes through a pre-drilled hole and another micro-wire adjustment groove, and then enters the pressure block adjustment groove where it is fixedly connected to the other pressure block. The guide wheels are symmetrically arranged in the pre-drilled hole via external brackets. On the upper and lower sides of the hole, tensioning wheels are set at any position between the winder and the guide wheel via external brackets; the stationary template is set on the stationary mold fixing plate of the injection molding machine, and a stationary mold base plate is fixedly connected to the stationary mold fixing plate at the bottom of the stationary template; the moving template is set on the moving mold fixing plate of the injection molding machine, and a moving mold base plate is fixedly connected to the moving mold fixing plate at the bottom of the moving template; the other side of the moving mold fixing plate is connected to the drive device; a baffle is fixedly set between the moving mold base plate and the moving template; and the bottom end of the pull rod is connected to the push plate on the moving mold base plate.

[0007] Furthermore, the pressure block is provided with a mounting hole, and a fastener is provided in the mounting hole to abut against the pressure block adjustment groove.

[0008] Furthermore, both the pressure block adjustment groove and the pressure block have a dovetail-shaped cross-section.

[0009] Furthermore, the micro-metal wires and the reserved holes are in a clearance fit, and the maximum clearance cannot exceed the overflow value of the polymer material used in injection molding.

[0010] Furthermore, the edge of the static template is provided with guide holes, and the edge of the dynamic template is provided with guide posts that can be inserted into the guide holes.

[0011] Furthermore, the injection molding machine has a material barrel and an injection device, which is connected to the sprue bushing.

[0012] It also includes a method for manufacturing microporous polymer devices, comprising the following steps:

[0013] (1) Fix the moving mold and stationary mold of the part to be processed on the injection molding machine respectively, and use the mold thickness adjustment function of the injection molding machine to determine the correct position of the moving mold and stationary mold closing;

[0014] (2) One end of the micro-metal wire is fixed in a reasonable position in the pressure block adjustment groove by the first pressure block. The other end of the micro-metal wire passes through the pressure block adjustment groove and the micro-wire adjustment groove near the mold side. After being tightened by the tension wheel and the direction position is adjusted by the guide wheel, it passes through the reserved hole and the cavity and passes through the reserved hole from the other end of the mold. After the direction position is adjusted again by another guide wheel and the tension wheel is tightened, it passes through another micro-wire adjustment groove and enters the pressure block adjustment groove and is fixed in a reasonable position by the second pressure block.

[0015] (3) Start the drive device to push the moving mold fixing plate. The moving mold and the stationary mold are closed by the cooperation of the guide column and the guide hole. The position of the moving mold is locked by the drive device. After the mold is closed, the moving mold core, the stationary mold core and the micro metal wire form a complete plastic part shape mold core.

[0016] (4) After the mold is closed, the molten polymer is injected through the sprue bushing and through the flow channel formed by the stationary mold flow channel and the moving mold flow channel into the cavity formed by the stationary mold core, the moving mold core and the micro metal wire, and is held under pressure and cooled for a period of time according to the specific requirements of the plastic part.

[0017] (5) After the cooling stage, start the motor to drive the winding machine to slowly rotate forward and backward at least 3 times, with each rotation angle being [missing information]. The formula must be satisfied:

[0018] (1)

[0019] in, The angle that the winder needs to rotate is L, the length of the micropores in the injection molded product after processing is L, and the radius of the winder is R.

[0020] (6) Stop the forward and reverse rotation of the winder, drive the moving mold to open the mold by the drive device, separate one of the pressure blocks and the micro metal wire, start the winder to rotate, drive the micro metal wire to be pulled out from the reserved hole of the mold and wound on the winder, and drive the pull rod of the injection molding machine to eject the plastic part, and the product is completed.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This invention utilizes micro-metal wires instead of micro-porous mold cores, creating a separate structure for the micro-porous core and mold cavity. A wire feeding system enables the recycling of the micro-metal wires. Compared to traditional one-piece micro-porous mold cores, the separate structure is easier to manufacture. Furthermore, the process of demolding the molded plastic part from the one-piece core is changed to a process where the separate core actively detaches from the molded part. This simplifies the demolding process and prevents damage to the entire cavity and even the entire mold due to the relatively weak tensile and bending strength of the core. It also avoids significant residual stress in the plastic part after phase transformation. Even if there is an angle between the demolding direction and the axis of the micro-porous mold core, demolding can proceed smoothly after separating the moving and stationary mold plates and removing the micro-metal wires without damaging the mold structure.

[0023] 2. The micro-metal wires in the split mold core are taut using a wire feeding system to create areas where molten polymer cannot flow in, replacing the traditional one-piece microporous mold core. This avoids bending deformation of the mold core under long-term impact from high-temperature, high-pressure molten polymer, ensuring the accuracy of microporous molding. When a section of micro-metal wire reaches its designed lifespan, it can be cut off or the micro-metal wire can be tensioned back and forth, allowing the next section to continue as part of the split mold core. This prevents mold core fatigue and bending deformation, ensuring the accuracy of microporous molding in the plastic part. While enabling mass production, this significantly improves product consistency and reduces manufacturing costs. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram showing the connection between the wire feeding system and the die in this invention;

[0026] Figure 3 This is a schematic diagram of the static mold structure in this invention;

[0027] Figure 4 This is a schematic diagram of the structure of the moving mold in this invention;

[0028] Figure 5 This is a cross-sectional view of the mold in this invention;

[0029] Figure 6 for Figure 5 Enlarged view of part A after removing the micro-metal wires;

[0030] Figure 7 This is a schematic diagram of the mold of the present invention having multiple cavities;

[0031] Figure 8 for Figure 7 Enlarged view of part B.

[0032] Figure label:

[0033] 1-Winder, 2-Micro wire, 3-Tensioning wheel, 4-Drive device, 5-Moving mold fixing plate, 6-Guide wheel, 7-Moving mold plate, 8-Guide post, 9-Cavity, 10-Static mold plate, 11-Static mold fixing plate, 12-Material barrel, 13-Injection device, 14-Injection molding machine, 15-Motor, 16-Micro wire adjustment groove, 17-Pressure block adjustment groove, 18-Pressure block, 19-Guide hole, 20-Static mold insert, 21-Static mold core, 22-Gating sleeve, 23-Static mold runner, 24-Baffle, 25-Moving mold insert, 26-Moving mold core, 27-Pull rod, 28-Moving mold runner, 29-Pre-reserved hole, 30-Static mold base plate, 31-Moving mold base plate, 32-Push plate, 33-Static mold, 34-Moving mold. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] like Figures 1 to 6 As shown, a microporous polymer device manufacturing apparatus includes an injection molding machine 14. The injection molding machine 14 is equipped with a stationary mold 33, a moving mold 34, a drive device 4, and a wire feeding system. The stationary mold 33 includes a stationary template 10 and a stationary mold insert 20. The stationary mold insert 20 is located in the middle of the stationary template 10 and has interconnected stationary mold cores 21, stationary mold runners 23, and sprue sleeves 22 perpendicular to the stationary mold runners 23. The moving mold 34 includes a moving template 7 and a moving mold insert 25, and is controlled by the drive device 4 to close the mold. The moving mold insert 25 is located in the middle of the moving template 7 and has interconnected... The moving mold core 26, the moving mold runner 28, and the pull rod 27 symmetrical to the sprue bushing 22 are all connected. After the stationary mold 33 and the moving mold 34 are closed, a cavity 9 is formed between the stationary mold core 21 and the moving mold core 26. After the stationary mold 33 and the moving mold 34 are closed, a reserved hole 29 is reserved to pass through the stationary mold plate 10, the moving mold plate 7, the stationary mold insert 20, the moving mold insert 25, the stationary mold core 21, the moving mold core 26, and the cavity 9, and to allow the micro-metal wire 2 to pass through. The wire feeding system is used to tension and tighten the micro-metal wire 2 and adjust the mold entry position of the micro-metal wire 2. The molten polymer in the injection molding machine 14 is injected from the sprue bushing 22.

[0036] The wire feeding system includes a winder 1, a motor 15, a tensioning wheel 3, and a guide wheel 6. The winder 1 is connected to the shaft of the motor 15. The top surface of the winder 1 has a pressure block adjustment groove 17 along the axial direction, and micro-wire adjustment grooves 16 are arranged parallel to each other on both sides of the pressure block adjustment groove 17. The micro-wire adjustment grooves 16 are all connected to the pressure block adjustment groove 17. Two pressure blocks 18 are slidably arranged in the pressure block adjustment groove 17. One pressure block 18 is fixedly connected to one end of the micro-metal wire 2. The other end of the micro-metal wire 2 passes through the pressure block adjustment groove 17 and one of the micro-wire adjustment grooves 16. After being guided and tightened by the tensioning wheel 3 and the guide wheel 6, it passes through the reserved hole 29 and the other micro-wire adjustment groove 16 and enters the pressure block adjustment groove 17 and is fixedly connected to the other pressure block 18. The guide wheel 6 is symmetrically arranged on the upper and lower sides of the reserved hole 29 by an external bracket. The tensioning wheel 3 is arranged at any position between the winder 1 and the guide wheel 6 by an external bracket.

[0037] The wire feeding system, guided by the pressure block 18 and guide wheel 6, and with the parallel pressure block adjustment groove 17 and micro-wire adjustment groove 16, allows the micro-metal wire 2 to move freely within the pressure block adjustment groove 17 and micro-wire adjustment groove 16, ensuring accurate clearance fit between the micro-metal wire 2 and the reserved hole 29. When the position of the reserved hole 29 is offset due to the use of different plastic parts' stationary mold core 21 and moving mold core 26, the position of the guide wheel 6 and tension wheel 3 can be laterally shifted on the external bracket to ensure that the micro-metal wire 2 can accurately pass through the reserved hole 29. The specific structure of the external bracket can be selected through conventional technical means and injection molding requirements. The pressure block 18 is provided with mounting holes, and fasteners abut against the pressure block adjustment groove 17 within the mounting holes. After determining the position of the pressure block 18 within the pressure block adjustment groove 17, the fasteners are tightened in the mounting holes to lock the position of the pressure block 18. Both the pressure block adjustment groove 17 and the pressure block 18 have dovetail-shaped cross sections. The shape of being narrow at the top and wide at the bottom can ensure that the pressure block 18 slides in the pressure block adjustment groove 17 while preventing the pressure block 18 from falling out of the pressure block adjustment groove 17, so that the pressure block 18 can only be inserted from both sides of the pressure block adjustment groove 17.

[0038] The micro-metal wire 2 and the pre-drilled hole 29 are fitted with a gap. The maximum gap cannot exceed the overflow value of the polymer material used in the injection molding to prevent molten polymer from entering the gap and affecting the quality of the micropore molding. The specific overflow value can be found in the Technical Data Sheet (TDS) provided by the manufacturer of the polymer material used.

[0039] The static template 10 has guide holes 19 on its edge, and the moving template 7 has guide posts 8 that can be inserted into the guide holes 19 on its edge. The cooperation between the guide holes 19 and the guide posts 8 can ensure that the static template 10 and the moving template 7 can be correctly closed.

[0040] The static mold plate 10 is mounted on the static mold fixing plate 11 of the injection molding machine 14. A static mold base plate 30, fixedly connected to the static mold fixing plate 11, is located at the bottom of the static mold plate 10. The moving mold plate 7 is mounted on the moving mold fixing plate 5 of the injection molding machine 14. A moving mold base plate 31, fixedly connected to the moving mold fixing plate 5, is located at the bottom of the moving mold plate 7. The other side of the moving mold fixing plate 5 is connected to the drive device 4. A baffle 24 is fixedly installed between the moving mold base plate 31 and the moving mold plate 7. The bottom end of the pull rod 27 is connected to the push plate 32 on the moving mold base plate 31. When the plastic part is demolded, the ejection mechanism on the injection molding machine can push the push plate 32 through the moving mold base plate 31 to move the pull rod 27 upwards, thus pushing the plastic part out of the cavity 9.

[0041] The injection molding machine 14 has a material barrel 12 and an injection device 13, which is connected to the sprue bushing 22. The injection device 13 of the injection molding machine 14 injects molten polymer through the sprue bushing 22, through the flow channel formed by the stationary mold flow channel 23 and the moving mold flow channel 28, into the cavity 9 composed of the stationary mold core 21, the moving mold core 26, and the micro-metal wire 2.

[0042] The polymer device manufacturing method of the present invention comprises the following steps:

[0043] (1) Fix the moving mold base plate 31 of the moving mold 34 and the stationary mold base plate 30 of the stationary mold 33 on the moving mold fixing plate 5 and the stationary mold fixing plate 11 of the injection molding machine 14 respectively. The cooperation of the guide post 8 and the guide hole 19 ensures that the moving mold 34 and the stationary mold 33 can be accurately closed and separated. The mold thickness adjustment function of the injection molding machine 14 is used to ensure the correct position of the moving mold 34 and the stationary mold 33 when they are closed.

[0044] (2) One end of the micro-metal wire 2 is fixed in a reasonable position in the pressure block adjustment groove 17 by the first pressure block 18. The other end of the micro-metal wire 2 passes through the pressure block adjustment groove 17 and the micro-wire adjustment groove 16 near the mold side. After being tightened by the tensioning wheel 3 and the first guide wheel 6 adjusting the direction, the micro-metal wire 2 passes through the reserved hole 29 and the cavity 9 and passes out from the other end of the mold along the reserved hole 29. After the direction is adjusted again by another guide wheel 6 and tightened by the tensioning wheel 3, it passes through another micro-wire adjustment groove 16 and enters the pressure block adjustment groove 17 and is fixed in a reasonable position by the second pressure block 18. This process is achieved by using the motor 15 to rotate the winder 1 so that the part of the micro-metal wire 2 that has rotated to the pressure block adjustment groove 17 is curled and attached to the winder 1, which means that the micro-metal wire 2 has reached the tension state and the micro-metal wire 2 in the reserved hole 29 will not bend or deform.

[0045] (3) The drive device 4 is activated to push the moving mold fixing plate 5 to move horizontally. Through the cooperation of the guide post 8 and the guide hole 19, the moving mold 34 and the stationary mold 33 complete the mold closing, and the drive device 4 locks the position of the moving mold 34. Figure 5 and Figure 6 As shown, the cavity 9 of the molded part is formed by the moving mold insert 25 and the stationary mold insert 20. After the mold is closed, the moving mold insert 25, the stationary mold insert 20, the moving mold core 26, the stationary mold core 21 and the micro metal wire 2 form a complete mold core of the molded part.

[0046] (4) After the mold is closed, the injection device 13 injects the molten polymer through the sprue bushing 22, through the flow channel formed by the stationary mold runner 23 and the moving mold runner 28, into the cavity 9 formed by the moving mold insert 25, the stationary mold insert 20, the stationary mold core 21, the moving mold core 26 and the micro wire 2. The pressure is held for a period of time according to the specific requirements of the plastic part. The holding time and holding pressure are set by the injection molding machine 14. After the holding pressure stage is completed, cooling is performed. The cooling duration and cooling rate are set by the injection molding machine 14 according to the performance of the plastic part and the type of polymer material.

[0047] (5) After the cooling stage, start motor 15 to drive winder 1 to slowly rotate forward and backward at least 3 times, with each rotation angle being [missing information]. The formula must be satisfied:

[0048] (1)

[0049] in, L is the angle that the winder 1 needs to rotate, L is the length of the micropores in the injection molded product after processing, and R is the radius of the winder 1.

[0050] (6) Stop the forward and reverse rotation of the winder 1, separate one of the pressure blocks 18 from the micro wire 2, start the motor 15 to rotate the winder 1, and drive the micro wire 2 to be pulled out from the reserved hole 29 of the mold and wound on the winder 1. The moving mold 34 is driven by the drive device 4 to open the mold, and the ejection mechanism of the injection molding machine 14 pushes the push plate 32 through the moving mold base plate 31, driving the pull rod 27 to eject the plastic part, and the product is completed.

[0051] This invention utilizes a split mold core consisting of a moving mold core 26, a stationary mold core 21, and micro-metal wires 2 to form a complete plastic part shape. Compared to traditional one-piece microporous mold cores, this invention changes the demolding process from the plastic part to a process where the mold core actively detaches from the outside of the plastic part. This not only simplifies the demolding process but also prevents damage to the entire cavity and even the entire molding die during demolding due to the relatively weak tensile and bending strength of the mold core. It also avoids large residual stress in the plastic part after phase transformation. Even if there is an angle between the demolding direction and the axis of the microporous mold core, demolding can be achieved smoothly after separating the moving and stationary mold cores and removing the micro-metal wires.

[0052] like Figure 7 and Figure 8As shown, when multiple plastic parts need to be produced at once, the moving mold 34 and the stationary mold 33 can be configured to form multiple mold cores to produce multiple plastic parts at once. When the positions of the stationary mold fixing plate 11 and the moving mold fixing plate 5 obstruct the reserved holes 29 required by the microporous polymer device, the reserved holes 29 can be opened simultaneously at the stationary mold fixing plate 11 and the moving mold fixing plate 5.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A microporous polymer device manufacturing apparatus, comprising an injection molding machine (14), characterized in that: The injection molding machine (14) is equipped with a stationary mold (33), a moving mold (34), a drive device (4), and a wire feeding system. The stationary mold (33) includes a stationary template (10) and a stationary mold insert (20). The stationary mold insert (20) is located in the middle of the stationary template (10). The stationary mold insert (20) has a stationary mold core (21), a stationary mold runner (23), and a sprue bushing (22) perpendicular to the stationary mold runner (23) that are mutually connected. The moving mold (34) includes a moving template (7) and a moving mold insert (25) and is controlled by the drive device (4) to close the mold. The moving mold insert (25) is located in the middle of the moving template (7). The block (25) is provided with a moving mold core (26) and a moving mold runner (28) that are mutually connected, as well as a pull rod (27) symmetrical to the sprue bushing (22); after the stationary mold (33) and the moving mold (34) are closed, a cavity (9) is formed between the stationary mold core (21) and the moving mold core (26). After the stationary mold (33) and the moving mold (34) are closed, a reserved hole (29) is reserved to pass through the stationary mold plate (10), the moving mold plate (7), the stationary mold insert (20), the moving mold insert (25), the stationary mold core (21), the moving mold core (26), and the cavity (9), and to allow the micro metal wire (2) to pass through; the wire feeding system is used for tensioning the tensioner. Tighten the micro-metal wire (2) and adjust the die-cutting position of the micro-metal wire (2); the molten polymer in the injection molding machine (14) is injected through the sprue sleeve (22); the wire feeding system includes a winder (1), a motor (15), a tensioning wheel (3) and a guide wheel (6). The winder (1) is connected to the shaft of the motor (15). The top surface of the winder (1) is provided with a pressure block adjustment groove (17) along the axial direction, and micro-wire adjustment grooves (16) are arranged parallel on both sides of the pressure block adjustment groove (17). The micro-wire adjustment grooves (16) are all connected to the pressure block adjustment grooves (17). Two pressure blocks are slidably arranged in the pressure block adjustment grooves (17). 18), one of the pressure blocks (18) is fixedly connected to one end of the micro wire (2), and the other end of the micro wire (2) passes through the pressure block adjustment groove (17) and one of the micro wire adjustment grooves (16). After being guided and tightened by the tension wheel (3) and the guide wheel (6), it passes through the reserved hole (29) and another micro wire adjustment groove (16) and enters the pressure block adjustment groove (17) and is fixedly connected to the other pressure block (18). The guide wheel (6) is symmetrically arranged on the upper and lower sides of the reserved hole (29) by the external bracket. The tension wheel (3) is arranged at any position between the winder (1) and the guide wheel (6) by the external bracket.The static template (10) is mounted on the static mold fixing plate (11) of the injection molding machine (14). A static mold base plate (30) is fixedly connected to the static mold fixing plate (11) at the bottom of the static template (10). The moving template (7) is mounted on the moving mold fixing plate (5) of the injection molding machine (14). A moving mold base plate (31) is fixedly connected to the moving mold fixing plate (5) at the bottom of the moving template (7). The other side of the moving mold fixing plate (5) is connected to the driving device (4). A baffle (24) is fixedly mounted between the moving mold base plate (31) and the moving template (7). The bottom end of the pull rod (27) is connected to the push plate (32) on the moving mold base plate (31).

2. The microporous polymer device manufacturing apparatus according to claim 1, characterized in that: The pressure block (18) is provided with a mounting hole, and a fastener is provided in the mounting hole to abut against the pressure block adjustment groove (17).

3. The microporous polymer device manufacturing apparatus according to claim 2, characterized in that: The cross-sections of the pressure block adjustment groove (17) and the pressure block (18) are both dovetail-shaped.

4. The microporous polymer device manufacturing apparatus according to claim 1, characterized in that: The micro-metal wire (2) and the reserved hole (29) are in a clearance fit, and the maximum clearance cannot exceed the overflow value of the polymer material used in injection molding.

5. The microporous polymer device manufacturing apparatus according to claim 1, characterized in that: The edge of the static template (10) is provided with a guide hole (19), and the edge of the moving template (7) is provided with a guide post (8) that can be inserted into the guide hole (19).

6. The microporous polymer device manufacturing apparatus according to claim 1, characterized in that: The injection molding machine (14) has a material barrel (12) and an injection device (13), which is connected to the sprue bushing (22).

7. A method for manufacturing a microporous polymer device, based on the microporous polymer device manufacturing apparatus according to any one of claims 1-6, characterized in that: The steps are as follows: (1) Fix the moving mold (34) and the stationary mold (33) of the device to be processed on the injection molding machine (14) respectively, and use the mold thickness adjustment function of the injection molding machine (14) to determine the correct position of the moving mold (34) and the stationary mold (33) when they are closed; (2) One end of the micro wire (2) is fixed in a reasonable position in the pressure block adjustment groove (17) by the first pressure block (18). The other end of the micro wire (2) passes through the pressure block adjustment groove (17) and the micro wire adjustment groove (16) near the mold side. After being tightened by the tension wheel (3) and the direction position adjusted by the guide wheel (6), it passes through the reserved hole (29) and the cavity (9) and passes through the reserved hole (29) from the other end of the mold. After being tightened by the other guide wheel (6) and the tension wheel (3), it passes through another micro wire adjustment groove (16) and enters the pressure block adjustment groove (17). It is fixed in a reasonable position by the second pressure block (18). (3) Start the drive device (4) to push the moving mold fixing plate (5). Through the cooperation of the guide post (8) and the guide hole (19), the moving mold (34) and the stationary mold (33) complete the mold closing. The position of the moving mold (34) is locked by the drive device (4). After the mold is closed, the moving mold core (26), the stationary mold core (21) and the micro metal wire (2) form a complete plastic part shape mold core. (4) After the mold is closed, the molten polymer is injected through the sprue bushing (22) and through the flow channel formed by the stationary mold flow channel (23) and the moving mold flow channel (28) into the cavity (9) formed between the stationary mold core (21), the moving mold core (26) and the micro metal wire (2) according to the specific requirements of the plastic part. The pressure is held and cooled for a period of time according to the specific requirements of the plastic part. (5) After the cooling stage is completed, start the motor (15) to drive the winding machine (1) to slowly rotate forward and backward at least 3 times, with each rotation angle being [missing information]. The formula must be satisfied: （1） in, L is the angle that the winder (1) needs to rotate, L is the length of the micropores of the injection molded product after processing, and R is the radius of the winder (1). (6) Stop the winder (1) from rotating forward and backward. Drive the moving mold (34) to open the mold by the drive device (4). Disassemble one of the pressure blocks (18) and the micro wire (2). Start the winder (1) to rotate. Drive the micro wire (2) to be pulled out from the reserved hole (29) of the mold and wound on the winder (1). Drive the pull rod (27) of the ejection mechanism of the injection molding machine (14) to eject the plastic part. The product is completed.

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