Polyimide film silica gel belt and preparation system thereof

Abstract

The invention relates to the technical field of silica gel belt slitting, in particular to a polyimide film silica gel belt and a preparation system thereof. A conveying frame, a rotating roller, an unwinding roller, a conveying roller, a slitting box and a telescopic device are arranged on a machine body; the conveying rollers are arranged at the upper end of the machine body, the slitting box is arranged at the upper end of the machine body, a telescopic device is arranged on the upper inner wall of the slitting box, the inner wall of the slitting box is slidably connected with a sliding plate, two first rectangular plates are symmetrically arranged at the lower end of the slitting box, and the lower ends of the first rectangular plates are slidably connected with sealing plates in a sealed mode. The slitting knife is arranged in the middle of the lower end of the sliding plate; when the silica gel belt is slit, defective products are prevented from being generated after the silica gel belt is slit.

Description

Technical Field

[0001] This invention relates to the field of silicone tape slitting technology, specifically to a polyimide film silicone tape and its preparation system. Background Technology

[0002] Polyimide film silicone tape is a high-performance composite tape made of polyimide film as the substrate and coated with silicone adhesive layer on one or both sides. It combines the high temperature resistance and chemical corrosion resistance of polyimide with the high adhesion and aging resistance of silicone. It is widely used in electronic insulation, sealing and cushioning, medical protection and other scenarios. When polyimide silicone tape is used in sealing, cushioning, and medical protection applications, it is usually necessary to produce the silicone tape in sheet form to facilitate transportation and use. When polyimide silicone tape is slit, it is usually slit with a blade. Specifically, the finished silicone tape is conveyed on a slitting machine, and during the conveying process, the silicone tape is intermittently slit downward by the cutter to cut the silicone tape into uniform sheets. However, during the slitting process of silicone tape, because silicone tape is a flexible material with toughness, the existing slitting machine uses a cutting blade to slitting the silicone tape. Due to the high toughness of the silicone tape, the cutting moment will generate a reverse pulling force on the blade. The silicone tape will be locally stretched and deformed at the blade edge, resulting in tearing, stringing, or burrs at the edge, which may lead to defective silicone sheets after slitting, thus affecting the slitting efficiency.

[0003] In summary, to address the technical problems raised in this paper, this invention proposes a polyimide film silicone tape and its preparation system. Summary of the Invention

[0004] To address the issue mentioned in the background technology that the high toughness of silicone tape causes a reverse tensile force on the cutting edge during cutting, resulting in localized tensile deformation of the silicone tape at the cutting edge, leading to tearing, stringing, or burrs at the edges, and potentially resulting in defective silicone sheets after slitting, this invention proposes a polyimide film silicone tape preparation system. This system includes a tape slitting machine, which comprises a machine body and a conveyor frame. A rotating roller is mounted on the conveyor frame, and an unwinding roller is mounted at the end of the conveyor frame furthest from the machine body. The machine body further includes: The conveyor roller is located at the top of the machine body and rotates via a drive motor located on one side of the machine body. The slitting box is located at the top of the machine body, and the conveyor roller is located between the slitting box and the unwinding roller. The upper inner wall of the slitting box is equipped with a telescopic device, and the inner wall of the slitting box is slidably connected to a sliding plate. The lower end of the telescopic device is connected to the upper end of the sliding plate. Two rectangular plates are symmetrically arranged at the lower end of the slitting box. The lower end of each rectangular plate is slidably connected to a rectangular plate, and the lower end of the rectangular plate is slidably connected to the inside of the rectangular plate. The lower end of the rectangular plate is slidably connected to a sealing plate. A spring is installed inside the rectangular plate. There are two extrusion plates, each of which is disposed at the lower end of a corresponding rectangular plate; and there is a gap between the two extrusion plates. The slitting blade is located at the lower center of the slide plate, between adjacent rectangular plate one and adjacent rectangular plate two; and the thickness of the slitting blade is the same as the gap between the two extrusion plates.

[0005] As a preferred embodiment of this application, rectangular grooves are provided at the lower ends of the extrusion plates on the sides that are close to each other. A flat plate is rotatably connected inside the rectangular groove. The connection between the flat plate and the rectangular groove is located in the gap between the two extrusion plates. In the initial state, the two flat plates have an "eight" shaped structure.

[0006] As a preferred embodiment of this application, a roller is provided at the end of the flat plate away from the extrusion plate.

[0007] As a preferred embodiment of this application, each flat plate is provided with an arc-shaped elastic plate at the end away from the roller; in the initial state, the ends of the two elastic plates are close to each other and are located between the two extrusion plates, and the two elastic plates form an inverted "V" shape.

[0008] As a preferred embodiment of this application, a fixing rod is fixed to the lower inner wall of one end of the two rectangular grooves that are close to each other. The fixing rod supports the flat plate so that it maintains the "V" shape structure when it is not under force. An elastic plate two is provided on the fixing rod. The elasticity of the elastic plate two is more than twice that of the elastic plate one. When the flat plate rotates, the inner side of the elastic plate one and the elastic plate two slide in contact.

[0009] As a preferred embodiment of this application, a plurality of mounting grooves are evenly provided at the lower end of the flat plate, and a plurality of mounting plates are hinged inside the mounting grooves by torsion springs, with the mounting plates hinged at the end of the mounting groove away from the elastic plate.

[0010] As a preferred embodiment of this application, the upper end of the rectangular plate two has air holes that are connected to the internal space of the rectangular plate two. The interior of the extrusion plate has a connecting groove that is connected to the air holes via a flexible hose. The lower end of the extrusion plate has multiple air outlets that are connected to the connecting groove.

[0011] A polyimide film silicone tape is prepared by the above-described polyimide film silicone tape preparation system; polyimide material is added to the silicone tape.

[0012] The beneficial effects of the present invention are as follows: By creating rectangular grooves on the sides of each extrusion plate that are close to each other at the lower end, and rotating a smoothing plate at the end of the rectangular grooves that are close to each other, before the extrusion plates contact the silicone strip below them, the roller at the end of the smoothing plate away from the extrusion plate contacts the silicone strip first. As the slide plate continues to move downward, the two smoothing plates at the lower ends of the two extrusion plates move away from each other on the silicone strip, causing the angle between the smoothing plate and the extrusion plate to gradually decrease. During this process, the smoothing plate moves close to the upper end of the silicone strip, smoothing the silicone strip at the lower end of the extrusion plate, preventing wrinkles from forming on the silicone strip during its movement, and preventing defective products from being produced after the silicone strip is cut. On the other hand, when the lower ends of the smoothing plates move away from each other, the silicone strip at the lower end of the extrusion plate is tensioned, thereby preventing the silicone strip between the two extrusion plates from becoming loose to a certain extent, and preventing defective products from being produced when the slitting knife cuts the silicone strip between the two extrusion plates. Attached Figure Description

[0013] Figure 1 This is a perspective view of the slitting machine in this invention; Figure 2 yes Figure 1 A 3D view of the slitting machine after removing the silicone tape roll; Figure 3 This is a three-dimensional view of the organism in this invention; Figure 4 yes Figure 3 A partial sectional view in the document; Figure 5 yes Figure 4 The front view in the middle; Figure 6 This is an internal structural view of the slitting box in this invention; Figure 7 This is a structural view of the skateboard, rectangular plate one, and rectangular plate two in this invention; Figure 8 This is a cross-sectional view of the extrusion plate, rectangular plate one, and rectangular plate two in this invention; Figure 9 yes Figure 8 A partial enlarged view of point A in the middle; Figure 10 This is a partial structural view of the flat plate of the present invention.

[0014] In the diagram: 1. Machine body; 2. Conveyor frame; 21. Rotating roller; 22. Unwinding roller; 11. Conveying roller; 12. Sliding box; 121. Telescopic device; 122. Slide plate; 123. Rectangular plate one; 124. Rectangular plate two; 125. Sealing plate; 13. Extrusion plate; 14. Sliding knife; 131. Rectangular groove; 132. Smoothing plate; 133. Elastic plate one; 134. Fixing rod; 135. Elastic plate two; 136. Mounting groove; 137. Mounting plate; 138. Connecting groove; 139. Air outlet. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0016] Example 1:

[0017] like Figures 1 to 10 As shown; a polyimide film silicone tape preparation system, the preparation system includes a tape slitting machine, the tape slitting machine includes a machine body 1 and a conveyor frame 2, a rotating roller 21 is arranged on the conveyor frame 2, and an unwinding roller 22 is arranged at the end of the conveyor frame 2 away from the machine body 1; the machine body 1 also includes: The conveying roller 11 is located at the upper end of the machine body 1 and rotates via a drive motor located on one side of the machine body 1. A slitting box 12 is located at the upper end of the machine body 1, and the conveying roller 11 is located between the slitting box 12 and the unwinding roller 22. A telescopic device 121 is provided on the upper inner wall of the slitting box 12, and a sliding plate 122 is slidably connected to the inner wall of the slitting box 12. The lower end of the telescopic device 121 is connected to the upper end of the sliding plate 122. Two rectangular plates 123 are symmetrically arranged at the lower end of the slitting box 12. A rectangular plate 124 is slidably connected to the lower end of each rectangular plate 123. The lower end of the rectangular plate 123 is slidably connected to the interior of the rectangular plate 124. A sealing plate 125 is slidably connected to the lower end of the rectangular plate 123. A spring is provided inside the rectangular plate 124. There are two extrusion plates 13, each extrusion plate 13 is respectively disposed at the lower end of the corresponding rectangular plate 124; and there is a gap between the two extrusion plates 13. The slitting blade 14 is located at the lower middle of the slide plate 122. The slitting blade 14 is located between the adjacent rectangular plate 123 and the adjacent rectangular plate 124. The thickness of the slitting blade 14 is the same as the gap between the two extrusion plates 13. A rectangular groove 131 is provided at the lower end of the side of the extrusion plates 13 that are close to each other. A flat plate 132 is rotatably connected inside the rectangular groove 131. The connection between the flat plate 132 and the rectangular groove 131 is located in the gap between the two extrusion plates 13. In the initial state, the two flat plates 132 have an "eight" shaped structure. A roller is provided at the end of the flat plate 132 away from the extrusion plate 13.

[0018] The specific workflow is as follows: During use, the operator places the silicone tape roll onto the unwinding roller 22, then places the silicone tape roll onto the lower end of the conveying roller 11, and then starts the drive motor located on one side of the machine body 1. The drive motor is an intermittent motor, and the rotation duration of the drive motor can be controlled by the operation panel on the machine body 1. When the conveying roller 11 is working, the conveying roller 11 rubs against the surface of the silicone tape below it, pushing the silicone tape to a position below the slitting box 12. During the process, the silicone tape roll on the unwinding roller 22 is unwound. After the unwinding roller 22 of the silicone belt moves to its lower end, the drive motor stops working. The telescopic device 121 inside the slitting box 12 starts working. The telescopic device 121 is an electric telescopic rod in the prior art. The telescopic device 121 moves downward to push the slide plate 122. After being pushed, the slide plate 122 moves downward, driving the rectangular plate 123, rectangular plate 124, slitting knife 14 and extrusion plate 13 below it to move downward synchronously. During the downward movement, the extrusion plate 13 will first contact the silicone belt below it. Then the telescopic device 121 continues to move downward, so that the extrusion plate 13 squeezes the silicone belt below it. At the same time, the rectangular plate 123... 23 slides into the rectangular plate 124, compressing the spring inside the rectangular plate 124. As the slide plate 122 continues to move downward, the slitting blade 14 continues to move downward until it passes through the gap between the two extrusion plates 13. The slitting blade 14 cuts the silicone strip in the gap between the two extrusion plates 13. When the slitting blade 14 cuts the silicone strip between the two extrusion plates 13, the two extrusion plates 13 squeeze and limit the silicone strip on both sides of the slitting blade 14, thereby reducing the local deformation of the silicone strip during cutting. This results in a higher material density at the cutting edge of the slitting blade 14, making the cut edge less prone to burrs or tears due to elastic recoil. This, in turn, improves the yield rate of silicone strip slitting. By creating rectangular grooves 131 on the adjacent sides of the lower ends of each extrusion plate 13, and rotatably connecting flat plates 132 at the adjacent ends of the rectangular grooves 131, before the extrusion plates 13 contact the silicone strip below them, the rollers at the ends of the flat plates 132 away from the extrusion plates 13 first contact the silicone strip. As the slide plate 122 continues downward, the extrusion plates 13 gradually move downward towards the upper end of the silicone strip. During this process, the two flat plates 132 at the lower ends of the two extrusion plates 13 move away from each other on the silicone strip, causing the angle between the flat plates 132 and the extrusion plates 13 to gradually decrease until the flat plates 132 are fully inserted. In the rectangular groove 131, during this process, as the smoothing plate 132 moves into the rectangular groove 131, it will move closely against the upper end of the silicone strip, smoothing the silicone strip at the lower end of the extrusion plate 13 to prevent the silicone strip from wrinkling during its movement, which would result in defective products after slitting. On the other hand, when the lower ends of the smoothing plates 132 move away from each other, they will tighten the silicone strip at the lower end of the extrusion plate 13, thereby preventing the silicone strip between the two extrusion plates 13 from becoming loose, which would result in defective products when the slitting blade 14 slits the silicone strip between the two extrusion plates 13. After the slitting is completed, the telescopic device 121 resets, causing the components inside the slitting box 12 to reset. Then the drive motor starts again, pushing the silicone strip so that the silicone sheet after slitting moves to the lower end of the slitting box 12. Then the telescopic device 121 and the drive motor repeat the above movements.

[0019] Example 2:

[0020] like Figures 2 to 10 As shown; each flat plate 132 is provided with an arc-shaped elastic plate 133 at the end away from the roller; in the initial state, the ends of the two elastic plates 133 that are close to each other are located between the two pressing plates 13, and the two elastic plates 133 form an inverted "eight" shape. A fixing rod 134 is fixed to the lower inner wall of one end of the two rectangular grooves 131 that are close to each other. The fixing rod 134 supports the flat plate 132, so that it maintains the "V" shape structure when it is not under force. An elastic plate 2 135 is provided on the fixing rod 134. The elasticity of the elastic plate 2 135 is more than twice that of the elastic plate 1 133. When the flat plate 132 rotates, the elastic plate 1 133 and the inner side of the elastic plate 2 135 slide in contact.

[0021] The specific workflow is as follows: By providing an elastic plate 133 at the end of each flat plate 132 away from the roller, and with the ends of the elastic plates 133 close to each other located between the two extrusion plates 13, and the two elastic plates 133 forming an "eight" shape; based on the above embodiment one, when the telescopic device 121 is not working, the slitting blade 14 is located at the upper end of the two elastic plates 133; when the telescopic device 121 is working, the slitting blade 14 moves downward, and during the process of the flat plate 132 at the lower end of the extrusion plate 13 moving into the rectangular groove 131, the upper elastic plate 133 of the flat plate 132 moves into the gap between the two plates. After the extrusion plate 13 and the flat plate 132 completely extrude the silicone strip below them, as described in the above embodiment, the slitting blade 14 moves downward between the adjacent extrusion plates 13. During this process, the sidewall of the slitting blade 14 will extrude the two elastic plates 133. After being extruded by the slitting blade 14, the elastic plates 133 bend and deform, causing the elastic plates 133 to gradually conform to the flat plate 133. At the hinge of the flat plate 132, the slitting blade 14 then passes between the two elastic plates 133. During this process, the elastic plates 133 are constantly pressing against the sidewall of the slitting blade 14. After the slitting blade 14 slices the silicone tape, the telescopic device 121 retracts upward, causing the slitting blade 14 to move upward. In the early stage of the upward movement of the slitting blade 14, because the spring in the rectangular plate 124 is in a compressed state, the rectangular plate 123 moves upward within the rectangular plate 124, keeping the pressing plate 13 stationary. The cutting blade 14 moves until it reaches above the two elastic plates 133; the pressing plate 13 and the smoothing plate 132 then begin to reset. However, during the movement of the cutting blade 14 towards the upper end of the elastic plates 133, the elastic plates 133 scrape the surface of the cutting blade 14 from top to bottom to clean the surface of the cutting blade 14, thereby preventing the sticky material on the surface of the silicone tape from adhering to the surface of the cutting blade 14 during cutting, thus reducing the sharpness of the cutting blade 14 during cutting. Based on the above, during the downward movement of the slitting blade 14, the slitting blade 14 presses against the elastic plate 133. After being pressed by the side of the slitting blade 14, the elastic plate 133 moves downward completely and gradually adheres to the surface of the smoothing plate 132. During this process, because the upper end of the elastic plate 135 set on the fixed plate will contact the inner side of the elastic plate 133 when the elastic plate 133 moves, the elastic plate 133... The first elastic plate 133 will compress the second elastic plate 135, causing the second elastic plate 135 to bend completely into the rectangular groove 131. As the slitting blade 14 moves upward, the lower end of the first elastic plate 133 scrapes against the surface of the slitting blade 14, removing sticky impurities. When the slitting blade 14 reaches the upper end of the first elastic plate 133, it no longer compresses or limits the first elastic plate 133, and the first elastic plate 133 no longer compresses or limits the elastic plate. The compression and limiting action of elastic plate 135 releases the elastic potential energy of both elastic plate 133 and elastic plate 135. During this process, since the elastic force of elastic plate 135 is at least twice that of elastic plate 133, the elastic potential energy of elastic plate 135 is greater than that of elastic plate 133. This results in elastic plate 135 resetting faster than elastic plate 133. When elastic plate 135 resets, it slides inside elastic plate 133, causing elastic plate 135 to... The inner side of the first elastic plate 133 can be cleaned to prevent sticky substances scraped off from the slitting blade 14 from remaining on the first elastic plate 133. Furthermore, the elasticity of the second elastic plate 135 is greater than that of the first elastic plate 133. Therefore, when the second elastic plate 135 elastically resets, the kinetic potential energy generated by the second elastic plate 135 will be transferred to the first elastic plate 133. After the potential energy of the second elastic plate 135 is released on the first elastic plate 133, the first elastic plate 133 will vibrate, further preventing impurities from remaining on the first elastic plate 133.

[0022] Example 3:

[0023] like Figures 1 to 10 As shown, multiple mounting slots 136 are evenly provided at the lower end of the flat plate 132. Multiple mounting plates 137 are hinged inside the mounting slots 136 by torsion springs. The mounting plates 137 are hinged to the end of the mounting slot 136 away from the elastic plate 135.

[0024] The specific workflow is as follows: Based on the above embodiment, when the telescopic device 121 retracts upward, it drives the slide plate 122, extrusion plate 13, flat plate 132, and slitting blade 14 to move upward. First, the blade and slide plate 122 move upward. After the spring inside the rectangular plate 124 returns to its original position, the extrusion plate 13 moves upward with the slide plate 122, disengaging from the silicone strip below it after slicing. However, during the upward movement of the extrusion plate 13, since the flat plate 132 inside the rectangular groove 131 is connected by a torsion spring, the flat plate 132 will rotate and disengage from the rectangular groove 131. During this process, due to the silicon... Since the tape itself is sticky, when the extrusion plate 13 extrudes and limits the silicone tape, the extrusion plate 13 is in close contact with the upper surface of the silicone tape, which may cause the surface of the silicone tape to stick to the lower end face of the extrusion plate 13. In this case, when the extrusion plate 13 moves upward, the smoothing plate 132 is rotated by the torsion spring and disengages from the inside of the rectangular groove 131. During the disengagement process, the smoothing plate 132 pushes the silicone tape below, thereby achieving the effect of pushing the upper surface of the silicone tape away from the lower end face of the extrusion plate 13, thus avoiding the silicone tape from sticking to the lower end of the extrusion plate 13, which would cause the silicone tape roll to be obstructed during the transport process, thereby improving the slicing efficiency. When the extrusion plate 13 presses the silicone strip downwards, the flat plate 132 at the lower end of the extrusion plate 13 presses against the silicone strip, and the flat plate 132 enters the interior of the rectangular groove 131. At the same time, the mounting plate 137 is pressed by the silicone strip, and the mounting plate 137 enters the interior of the mounting groove 136. As described above, when the telescopic device 121 retracts upwards, the extrusion plate 13, the flat plate 132, and the mounting plate 137 all detach from the top of the silicone strip.

[0025] Example 4:

[0026] like Figures 1 to 10 As shown; the upper end of the rectangular plate 124 has an air hole 126, which is connected to the space inside the rectangular plate 124; the interior of the extrusion plate 13 has a connecting groove 138, which is connected to the air hole 126 through a hose; the lower end of the extrusion plate 13 has multiple air outlets 139, which are connected to the connecting grooves 138.

[0027] The specific workflow is as follows: By opening an air hole 126 at the upper end of the rectangular plate 124, the air hole 126 communicates with the hole inside the rectangular plate 124. Simultaneously, a connecting groove 138 is opened inside the extrusion plate 13, which is connected to the air hole 126 via a flexible hose. An air outlet 139 is opened at the lower end of the extrusion plate 13, communicating with the connecting groove 138. Based on the first embodiment described above, during the downward movement of the telescopic device 121, after the extrusion plate 13 contacts the upper end of the silicone strip, the telescopic device 121 continues to extend downward, causing the sliding plate 122 to extend downward. The rectangular plate 123 at the lower end of the slide plate 122 slides inside the rectangular plate 124. During this process, the sealing plate 125 below the pusher of the rectangular plate 123 moves downward. During this process, the space between the upper end of the sealing plate 125 and the inside of the rectangular plate 124 increases, so that the sealing plate 125 draws air to the outside through the air hole 126. During this process, the air hole 126 draws air from the inside of the connecting groove 138 through the hose. The connecting groove 138 draws air from the air outlet 139, so that the air outlet 139 adsorbs the silicone strip below it, so that the silicone strip has a better fixing effect during the cutting process. After the silicone tape is cut, the shrinking device moves upward. During this process, the first rectangular plate 123 moves upward inside the second rectangular plate 124, which reduces the space on the sealing plate 125. The gap between the top of the sealing plate 125 and the inside of the second rectangular plate 124 becomes smaller, allowing the gas above the sealing plate 125 to enter the connecting groove 138 through the hose and then be discharged from the air outlet 139. During this process, the gas between the air outlet 139 and the silicone tape expands, thereby pushing the silicone tape out of the air outlet 139. This prevents the silicone tape from sticking to the lower end of the extrusion plate 13 due to its own adhesiveness, thus improving the cutting efficiency of the silicone tape.

[0028] Embodiment 5:

[0029] A polyimide film silicone tape is prepared by the above-described polyimide film silicone tape preparation system; polyimide material is added to the silicone tape.

[0030] The principle is as follows: Because silicone itself has relatively weak mechanical properties, the addition of polyimide fibers or films significantly improves the tensile and tear resistance of silicone tapes, reducing the risk of breakage under complex working conditions (such as winding and bending). Furthermore, polyimide itself has excellent high and low temperature resistance, preventing shrinkage during temperature changes and ensuring the effectiveness of the silicone tape.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyimide film silicone tape preparation system, the preparation system comprising a tape slitting machine, the tape slitting machine comprising a machine body (1) and a conveyor frame (2), a rotating roller (21) being disposed on the conveyor frame (2), and an unwinding roller (22) being disposed at the end of the conveyor frame (2) away from the machine body (1); characterized in that, The body (1) also includes: The conveying roller (11) is located at the upper end of the machine body (1) and rotates by a drive motor located on one side of the machine body (1); A slitting box (12) is located at the upper end of the machine body (1), and a conveying roller (11) is located between the slitting box (12) and the unwinding roller (22). A telescopic device (121) is provided on the upper inner wall of the slitting box (12), and a sliding plate (122) is slidably connected to the inner wall of the slitting box (12). The lower end of the telescopic device (121) is connected to the upper end of the sliding plate (122). Two rectangular plates (123) are symmetrically arranged at the lower end of the slitting box (12). A rectangular plate (124) is slidably connected to the lower end of each rectangular plate (123). The lower end of the rectangular plate (123) is slidably connected to the inside of the rectangular plate (124). A sealing plate (125) is slidably connected to the lower end of the rectangular plate (123). A spring is provided inside the rectangular plate (124). There are two extrusion plates (13), each extrusion plate (13) is respectively set at the lower end of the corresponding rectangular plate (124); and there is a gap between the two extrusion plates (13); A slitting blade (14) is located at the lower middle of the slide plate (122). The slitting blade (14) is located between adjacent rectangular plate one (123) and adjacent rectangular plate two (124). The thickness of the slitting blade (14) is the same as the gap between the two extrusion plates (13).

2. The polyimide film silicone tape preparation system as described in claim 1, characterized in that: A rectangular groove (131) is provided at the lower end of the side of the extrusion plates (13) that are close to each other. A flat plate (132) is rotatably connected inside the rectangular groove (131). The connection between the flat plate (132) and the rectangular groove (131) is located in the gap between the two extrusion plates (13). In the initial state, the two flat plates (132) have an "eight" shaped structure.

3. The polyimide film silicone tape preparation system as described in claim 2, characterized in that: A roller is provided at the end of the flat plate (132) away from the extrusion plate (13).

4. The polyimide film silicone tape preparation system as described in claim 3, characterized in that: Each flat plate (132) is provided with an arc-shaped elastic plate (133) at the end away from the roller; in the initial state, the ends of the two elastic plates (133) are close to each other and are located between the two extrusion plates (13), and the two elastic plates (133) form an inverted "eight" shape.

5. The polyimide film silicone tape preparation system as described in claim 4, characterized in that: A fixing rod (134) is fixed to the lower inner wall of one end of the two rectangular grooves (131) that are close to each other. The fixing rod (134) supports the flat plate (132) so that it maintains the "V" shape structure when it is not under force. An elastic plate two (135) is provided on the fixing rod (134). The elasticity of the elastic plate two (135) is more than twice that of the elastic plate one (133). When the flat plate (132) rotates, the elastic plate one (133) slides in contact with the inner side of the elastic plate two (135).

6. The polyimide film silicone tape preparation system as described in claim 5, characterized in that: Multiple mounting slots (136) are evenly provided at the lower end of the flat plate (132). Multiple mounting plates (137) are hinged inside the mounting slots (136) by torsion springs. The mounting plates (137) are hinged at the end of the mounting slot (136) away from the elastic plate (135).

7. The polyimide film silicone tape preparation system as described in claim 6, characterized in that: The upper end of the rectangular plate 2 (124) has an air hole (126), which is connected to the space inside the rectangular plate 2 (124). The interior of the extrusion plate (13) has a connecting groove (138), which is connected to the air hole (126) through a hose. The lower end of the extrusion plate (13) has multiple air outlets (139), which are connected to the connecting grooves (138).

8. A polyimide film silicone tape, wherein the silicone tape is prepared by a polyimide film silicone tape preparation system according to any one of claims 1-7; characterized in that: Polyimide material is added to the silicone tape.

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