Preparation process and preparation device of a silicone rubber composite membrane

Abstract

The present invention relates to a preparation process and a preparation device for a silicone rubber composite film, belonging to the technical field of silicone rubber composite film coating preparation. A preparation process and a preparation device for a silicone rubber composite film include an inverted U-shaped mounting frame. A third conveying roller is rotatably installed on the right side of the inverted U-shaped mounting frame. A grinding mechanism for grinding an aluminum strip is arranged on the upper right side of the top of the inverted U-shaped mounting frame. A blowing and cleaning mechanism is arranged in the middle of the top of the inverted U-shaped mounting frame. A coating roller is rotatably installed on the upper left side of the inverted U-shaped mounting frame. In the present invention, the grinding cylinder in the grinding mechanism rotates and grinds the baseband along the conveying direction and reciprocates and grinds the baseband perpendicular to the conveying direction, improving the bonding firmness between the silicone rubber composite film and the baseband. The lateral movement of the upper die is realized through the position adjusting component, and the blocked area is exposed during the lateral movement. Under the cooperation of the driving part and the execution part, the lower die is reciprocally brushed and cleaned by the cleaning brush.

Description

Technical Field

[0001] The present invention belongs to the technical field of silicone rubber composite film coating preparation, and particularly relates to a preparation process and a preparation device for a silicone rubber composite film. Background Art

[0002] The silicone rubber composite film is a multifunctional composite material that combines the characteristics of silicone rubber and other materials. Silicone rubber itself has excellent heat resistance, cold resistance, electrical insulation and biocompatibility. By compounding with other materials, its physical properties can be further enhanced or new characteristics can be imparted. The preparation methods of silicone rubber composite films include blend compounding preparation, coating preparation, lamination compounding preparation and in-situ polymerization. Among them, the slot coating preparation equipment is a relatively common one. The following problems exist in the coating preparation process:

[0003] 1. During the coating preparation process of the slot coating preparation equipment for the silicone rubber composite film, the silicone rubber coating is usually coated on the substrate, and after drying, the silicone rubber composite film is made. The substrate is generally an aluminum strip or non-woven fabric. When using the aluminum strip as the substrate for coating preparation, due to the relatively smooth surface of the aluminum strip and small surface roughness, the bonding ability with the silicone rubber coating is poor, and the problem of peeling of the silicone rubber composite film is likely to occur.

[0004] 2. During the preparation process of the slot coating preparation equipment, impurities are likely to remain inside the die head. During long-term use, the die head is likely to be blocked. After the existing die head is blocked, it is necessary to stop the machine, disassemble the die head, and then disassemble the upper die and the lower die in the die head for cleaning, which is time-consuming and laborious.

[0005] 3. When the slot coating preparation equipment is performing coating preparation, an edge effect will occur, that is, the edge of the base tape will become thinner or thicker, reducing the uniformity of the coating preparation. And at the same time, after coating is completed, drying is required. Usually, a hot air dryer is used for drying. During the drying process, the surface is likely to be dry while the inside is not dry. Summary of the Invention

[0006] The purpose of the present invention is to provide a preparation process and a preparation device for a silicone rubber composite film with a simple structure and reasonable design in order to solve the above problems.

[0007] The present invention achieves the above purpose through the following technical solutions:

[0008] A preparation device for a silicone rubber composite film, comprising an inverted U-shaped mounting frame. A third conveying roller is rotatably mounted on the right side of the inverted U-shaped mounting frame. A grinding mechanism for grinding an aluminum strip is arranged on the right side of the top of the inverted U-shaped mounting frame. A blowing and cleaning mechanism is arranged in the middle of the top of the inverted U-shaped mounting frame. A coating roller is rotatably mounted on the left top of the inverted U-shaped mounting frame, and a coating mechanism for coating the silicone rubber composite film is arranged on the left side of the inverted U-shaped mounting frame where the coating roller is located. A hot air drying mechanism and a microwave dryer are arranged on the left side inside the inverted U-shaped mounting frame.

[0009] The grinding mechanism includes a mounting seat fixedly connected to the top of the front side of the inverted U-shaped mounting frame. A second servo motor is fixedly mounted on the left side of the mounting seat. The output end of the second servo motor rotatably penetrates through the front side of the inverted U-shaped mounting frame and is fixedly mounted with a first baffle. A square shaft is fixedly mounted at the center of the rear side of the first baffle. A grinding cylinder is slidably sleeved on the middle part of the square shaft. A fixed shaft is fixedly mounted on the rear side of the square shaft. The fixed shaft rotatably penetrates through the rear side of the inverted U-shaped mounting frame. An arc-shaped plate is fixedly mounted on the top of the rear side of the inverted U-shaped mounting frame. A cylindrical cam is fixedly mounted on the front side of the arc-shaped plate. The center of the cylindrical cam is a through hole, and the square shaft passes through the through hole. Two first fixing seats are symmetrically and fixedly mounted on the left and right sides of the rear side of the grinding cylinder, and a first roller is rotatably connected to each of the two first fixing seats. The rear side of the first roller is in contact with the front side of the cylindrical cam. A first spring is sleeved on the front end of the square shaft, and the first spring is arranged between the first baffle and the grinding cylinder.

[0010] Preferably, two limiting grooves are symmetrically opened on the front and rear side walls of the inverted U-shaped mounting frame. Screws are slidably connected inside the limiting grooves. A tensioning roller is rotatably connected between the two corresponding front and rear screws. A pressing plate is slidably sleeved on the screw. One side of the pressing plate is in contact with the side wall of the inverted U-shaped mounting frame. A nut is threadedly connected to the screw, and the nut is in contact with the other side of the pressing plate. Support legs are respectively fixedly mounted at the four corners of the bottom of the inverted U-shaped mounting frame.

[0011] Preferably, the coating mechanism includes a transverse movement component, a position adjustment component, and a cleaning component. The position adjustment component is arranged on the transverse movement component, and the cleaning component is arranged on the position adjustment component. The transverse movement component includes two electric slide rails symmetrically and fixedly mounted on the left sides of the front and rear side walls of the inverted U-shaped mounting frame. Electric sliders are slidably connected to the tops of the two electric slide rails. The position adjustment component includes a first fixing plate fixedly connected to the tops of the two electric sliders. A reinforcing rib plate is fixedly connected between the first fixing plate and the electric slider. Two side plates are symmetrically and fixedly connected to the front and rear of the first fixing plate. A lead screw is rotatably connected between the two side plates. A third servo motor is fixedly mounted on the front side plate. The output end of the third servo motor is fixedly connected to the front end of the lead screw. A movable block is threadedly connected to the middle of the lead screw through a ball nut. An upper die is fixedly connected to the right side of the movable block. A lower die is fixedly mounted at the bottom right of the first fixing plate. The upper die and the lower die are slidably connected.

[0012] Preferably, the cleaning assembly includes two second fixing plates symmetrically and fixedly connected to the top of the first fixing plate front and back. A rack is fixedly installed on the right side of the two second fixing plates. Two driving parts are symmetrically arranged on the front and back of the top of the upper die. Execution parts are arranged on the front and back side walls of the upper die. The driving part includes a fixed arm fixedly connected to the left corner of the top of the upper die. An installation shaft is rotatably installed on the top of the fixed arm. A gear meshing with the rack is fixedly sleeved on the top of the installation shaft. An eccentric cam is fixedly sleeved on the bottom of the installation shaft.

[0013] Preferably, the execution part includes a mounting plate fixedly connected to the side wall of the upper die. A limiting plate is fixedly installed on the left side of the top of the mounting plate. A guide rod slidably penetrates through the middle of the limiting plate. A second baffle is fixedly installed at the left end of the guide rod. A second fixing seat is fixedly installed at the left end of the second baffle. A second roller is rotatably connected to the second fixing seat. The outside of the second roller is attached to the outside of the eccentric cam.

[0014] Preferably, a second spring is sleeved on the left end of the guide rod. The second spring is arranged between the limiting plate and the second baffle. A stop block is fixedly installed at the right end of the guide rod. A connecting block is fixedly installed at the bottom of the second baffle. A cleaning brush is fixedly installed at the bottom of the connecting block. A limiting slide rail is slidably connected to the middle of the top of the cleaning brush. The top of the limiting slide rail is fixedly connected to the bottom of the mounting plate. A scraping plate for scraping and cleaning the top of the lower die is fixedly connected to the middle of the bottom of the mounting plate.

[0015] Preferably, the air blowing and cleaning mechanism includes two L-shaped fixing rods symmetrically and fixedly connected to the top of the inverted U-shaped mounting frame front and back. A flow dividing plate is fixedly installed between the two L-shaped fixing rods. A number of nozzles are evenly installed at the bottom of the flow dividing plate. The center of the top of the flow dividing plate is fixedly connected to a first air delivery pipe. One end of the first air delivery pipe away from the flow dividing plate is fixedly installed with a three-way valve. A gas pump is fixedly installed at the bottom of the three-way valve through a pipeline. A second air delivery pipe is fixedly installed on one side of the top of the three-way valve. One end of the second air delivery pipe away from the three-way valve is fixedly connected to a flow dividing pipe. A number of air injection pipes are evenly installed at the bottom of the flow dividing pipe. The air injection pipes penetrate through the upper die at the bottom. The bottom of the air injection pipes is located between the upper die and the lower die and is flush with the bottom of the upper die.

[0016] Preferably, a winding disc for winding the silicone rubber composite film is rotatably installed at a position near the corner of the inner bottom of the inverted U-shaped mounting frame. And a first servo motor is fixedly installed at the lower left corner of the front side of the inverted U-shaped mounting frame. The output end of the first servo motor is fixedly connected to the center of the front side of the winding disc. A first conveying roller and a second conveying roller are rotatably connected in the middle of the inverted U-shaped mounting frame.

[0017] Preferably, the hot air drying mechanism includes an installation box fixedly installed inside the inverted U-shaped installation frame through a connecting plate. An air outlet is provided on one side of the installation box facing the silicone rubber composite film. A suction pump is fixedly installed on the side of the installation box away from the silicone rubber composite film. The output end of the suction pump is fixedly installed with a main pipe. A number of manifolds are evenly installed on the main pipe. One end of the manifold away from the main pipe is located inside the installation box. A number of heating pipes are evenly installed inside the installation box.

[0018] A preparation process of a silicone rubber composite film includes the following steps:

[0019] S1. Baseband feeding: After the baseband is unwound from the unwinding reel, it is fed after being guided by the third conveying roller.

[0020] S2. Surface grinding: After the baseband is fed, it enters the top of the tension roller. At this time, the upper surface of the baseband is rotationally ground along the conveying direction by the grinding mechanism, and at the same time, it is reciprocally ground perpendicular to the conveying direction. After grinding, the blown air cleaning mechanism is used to blow and remove dust from the ground baseband.

[0021] S3. Coating preparation: The baseband after blowing and dust removal is continuously conveyed to the position of the coating roller, and the coating mechanism is used to prepare the silicone rubber composite film on the baseband.

[0022] S4. Two-stage drying: When the baseband coating is completed, it is continuously conveyed along the first conveying roller. At this time, the hot air drying mechanism is used to perform low-temperature hot air drying on the surface of the silicone rubber composite film, and then the microwave dryer is used to perform high-temperature microwave drying on the silicone rubber composite film.

[0023] S5. Winding and collecting: When the drying of the silicone rubber composite film is completed, the winding reel is used to wind and collect the dried silicone rubber composite film.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. In the present invention, the grinding cylinder in the grinding mechanism rotates and grinds the baseband along the conveying direction. While the grinding cylinder rotates, under the action of the cylindrical cam and the first spring, the reciprocating grinding of the grinding cylinder perpendicular to the conveying direction is realized, which is beneficial to grinding the baseband in two directions, improving the surface grinding effect, increasing the surface roughness of the baseband, and enhancing the bonding firmness between the silicone rubber composite film and the baseband;

[0026] 2. The present invention adjusts the distance between the die head composed of the upper and lower dies and the baseband through the cross - moving component in the coating mechanism, and realizes the lateral movement of the upper die through the position - adjusting component. During the cross - movement, the blocked area is exposed. During the cross - movement process, the scraper in the cleaning component scrapes the residual material on the lower die. Under the cooperation of the driving part and the executing part, the cleaning brush reciprocates to brush and clean the lower die, and with the blowing cleaning of the blowing cleaning mechanism, automatic cleaning of the die head is achieved, eliminating the need to stop the machine for disassembly and cleaning.

[0027] 3. The present invention pre - dries the surface of the coated silicone rubber composite film at a low temperature by hot air through the hot - air drying mechanism, and then uses a microwave dryer for high - temperature drying, realizing drying by two drying methods with different temperatures and different action principles, with good drying effects and avoiding uneven drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the three - dimensional view of the overall structure of the present invention;

[0029] Figure 2 is the partial cross - sectional view of the overall structure of the present invention;

[0030] Figure 3 is the three - dimensional view of the partial structure of the present invention;

[0031] Figure 4 is the three - dimensional view of the grinding mechanism of the present invention;

[0032] Figure 5 is the three - dimensional view of the coating mechanism of the present invention;

[0033] Figure 6 is the schematic diagram of the first - perspective partial cross - section of the coating mechanism of the present invention;

[0034] Figure 7 is of the present invention Figure 6 magnified schematic diagram of area A;

[0035] Figure 8 is the schematic diagram of the second - perspective partial cross - section of the coating mechanism of the present invention;

[0036] Figure 9 is the partial cross - sectional view of the first conveying roller of the present invention;

[0037] Figure 10 is the process flow chart of the present invention.

[0038] In the figure: 1. Inverted U-shaped mounting bracket; 2. Grinding mechanism; 20. Second servo motor; 21. Mounting seat; 22. First spring; 23. Grinding cylinder; 24. First baffle; 25. Square shaft; 26. Cylindrical cam; 27. Fixed shaft; 28. First roller; 29. First fixed seat; 3. Blowing and cleaning mechanism; 31. L-shaped fixing rod; 32. First air pipe; 33. Second air pipe; 34. Three-way valve; 35. Air pump; 36. Shunt plate; 37. Shunt pipe; 38. Jet pipe; 4. Coating mechanism; 41. Transverse movement assembly; 411. Electric slide rail; 412. Electric slider; 413. Reinforcing rib plate; 42. Position adjusting assembly; 421. Third servo motor; 422. First fixing plate; 423. Movable block; 424. Lead screw; 425. Side plate; 43. Cleaning assembly; 431. Second fixing plate; 432. Rack; 433. Driving part; 4330. Guide rod; 4331. Gear; 4332. Fixed arm; 4333. Mounting shaft; 4334. Eccentric cam; 4335. Second roller; 4336. Connecting block; 4337. Second baffle; 4338. Second spring; 4339. Limiting plate; 434. Executing part; 4341. Scraper; 4342. Cleaning brush; 4343. Limiting slide rail; 4344. Mounting plate; 44. Upper die; 45. Lower die; 5. Winding reel; 6. First servo motor; 7. Coating roller; 8. Hot air drying mechanism; 81. Installation box; 82. Air outlet; 83. Heating pipe; 84. Suction pump; 85. Main pipe; 86. Manifold; 9. First conveying roller; 10. Microwave dryer; 11. Second conveying roller; 12. Support leg; 13. Third conveying roller; 14. Tensioning roller; 15. Screw; 16. Crimping plate; 17. Arc plate. Detailed implementation manners

[0039] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following specific implementation manners are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0040] Embodiment: Please refer to Figure 1 , Figure 2 , Figure 3, A preparation device for a silicone rubber composite film, including an inverted U-shaped mounting frame 1. A third conveying roller 13 is rotatably installed on the right side of the inverted U-shaped mounting frame 1. A grinding mechanism 2 for grinding an aluminum strip is provided on the upper right side of the inverted U-shaped mounting frame 1. A blowing and cleaning mechanism 3 is provided in the middle of the top of the inverted U-shaped mounting frame 1. A coating roller 7 is rotatably installed on the upper left side of the inverted U-shaped mounting frame 1. And a coating mechanism 4 for coating the silicone rubber composite film is provided on the left side of the inverted U-shaped mounting frame 1 where the coating roller 7 is located. A hot air drying mechanism 8 and a microwave dryer 10 are provided inside the left side of the inverted U-shaped mounting frame 1. Two limiting grooves are symmetrically opened on the front and rear side walls of the inverted U-shaped mounting frame 1 from left to right. A screw rod 15 is slidably connected inside each limiting groove. A tensioning roller 14 is rotatably connected between the two corresponding screw rods 15 front and rear. A pressing plate 16 is slidably sleeved on the screw rod 15. One side of the pressing plate 16 is attached to the side wall of the inverted U-shaped mounting frame 1. A nut is threadedly connected to the screw rod 15 and is attached to the other side of the pressing plate 16. Support legs 12 are respectively fixedly installed at the four corners of the bottom of the inverted U-shaped mounting frame 1. A winding disk 5 for winding the silicone rubber composite film is rotatably installed near the corner positions at the bottom inside the inverted U-shaped mounting frame 1. And a first servo motor 6 is fixedly installed at the lower left corner of the front side of the inverted U-shaped mounting frame 1. The output end of the first servo motor 6 is fixedly connected to the center of the front side of the winding disk 5. A first conveying roller 9 and a second conveying roller 11 are rotatably connected in the middle of the inverted U-shaped mounting frame 1.

[0041] During use, first, the baseband is unwound through an unwinding disk (not shown in the figure). The baseband is an aluminum strip or a copper strip. After unwinding, the baseband bypasses the third conveying roller 13 and the tensioning roller 14, then bypasses the coating roller 7, and enters after being guided by the first conveying roller 9 and the second conveying roller 11. Finally, it is wound onto the winding disk 5. The blowing and cleaning mechanism 3 is used to perform two-way grinding on the upper surface of the baseband. The coating roller 7 coats the silicone rubber composite film on the surface of the baseband. The blowing and cleaning mechanism 3 is used to blow and clean the ground baseband and to blow and clean the coating mechanism 4. The hot air drying mechanism 8 is used to perform low-temperature surface pre-drying on the coated silicone rubber composite film. The microwave dryer 10 is used for high-temperature microwave drying.

[0042] Please refer to Figure 1 、 Figure 2 and Figure 4, the grinding mechanism 2 includes a mounting seat 21 fixedly connected to the top of the front side of the inverted U-shaped mounting frame 1. A second servo motor 20 is fixedly installed on the left side of the mounting seat 21. The output end of the second servo motor 20 rotates through the front side of the inverted U-shaped mounting frame 1 and is fixedly installed with a first baffle 24. A square shaft 25 is fixedly installed at the center of the rear side of the first baffle 24. A grinding cylinder 23 is slidably sleeved on the middle part of the square shaft 25. A fixed shaft 27 is fixedly installed at the rear side of the square shaft 25. The fixed shaft 27 rotates through the rear side of the inverted U-shaped mounting frame 1. An arc-shaped plate 17 is fixedly installed on the top of the rear side of the inverted U-shaped mounting frame 1. A cylindrical cam 26 is fixedly installed on the front side of the arc-shaped plate 17. The center of the cylindrical cam 26 is a through hole, which is a circular through hole, and the square shaft 25 passes through the through hole. Two first fixing seats 29 are fixedly installed symmetrically on the left and right of the rear side of the grinding cylinder 23, and a first roller 28 is rotatably connected to each of the two first fixing seats 29. The rear side of the first roller 28 is in contact with the front side of the cylindrical cam 26. A first spring 22 is sleeved on the front end of the square shaft 25, and the first spring 22 is arranged between the first baffle 24 and the grinding cylinder 23.

[0043] During the use of the grinding mechanism 2, first, turn the nut on the screw 15 to loosen the pressing of the pressing plate 16 on the inverted U-shaped mounting frame 1. At this time, slide the screw 15 along the limiting groove on the inverted U-shaped mounting frame 1 to drive the tensioning roller 14 to slide up and down until the distance between the tensioning roller 14 and the grinding mechanism 2 is adjusted to an appropriate value, and then fix the screw 15. At this time, start the second servo motor 20. The output end of the second servo motor 20 drives the first baffle 24 to rotate, synchronously drives the square shaft 25 and the grinding cylinder 23 thereon to rotate, and uses the grinding cylinder 23 to rotate and grind the baseband along the conveying direction. While the grinding cylinder 23 rotates, it drives the first fixing seat 29 and the first roller 28 thereon to rotate synchronously. During the rotation of the first roller 28, it contacts the cylindrical cam 26. When the protruding position on the cylindrical cam 26 contacts the first roller 28, it presses the first roller 28 and the first fixing seat 29 forward, drives the grinding cylinder 23 to move forward, and synchronously compresses the first spring 22. When the first roller 28 moves away from the protruding part of the cylindrical cam 26, under the elastic force of the first spring 22, it drives the grinding cylinder 23 and the first fixing seat 29 thereon to move backward, synchronously drives the first roller 28 to move backward, realizes the rotation and reciprocating grinding of the baseband, has a good grinding effect, increases the surface roughness of the baseband, and improves the bonding strength between the silicone rubber composite film and the baseband.

[0044] Please refer to Figure 1 and Figure 2, the air blowing and cleaning mechanism 3 includes two L-shaped fixing rods 31 symmetrically and fixedly connected to the top of the inverted U-shaped mounting frame 1 before and after. A flow dividing plate 36 is fixedly installed between the two L-shaped fixing rods 31. A number of nozzles are evenly installed at the bottom of the flow dividing plate 36. A first air delivery pipe 32 is fixedly connected to the center of the top of the flow dividing plate 36. One end of the first air delivery pipe 32 away from the flow dividing plate 36 is fixedly installed with a three-way valve 34. An air pump 35 is fixedly installed at the bottom of the three-way valve 34 through a pipe. A second air delivery pipe 33 is fixedly installed on one side of the top of the three-way valve 34. One end of the second air delivery pipe 33 away from the three-way valve 34 is fixedly connected to a flow dividing pipe 37. The flow dividing pipe 37 is fixedly installed on the upper die 44 through a mounting block. A number of air injection pipes 38 are evenly installed at the bottom of the flow dividing pipe 37. The air injection pipes 38 penetrate through the upper die 44 at the bottom. The bottom of the air injection pipes 38 is located between the upper die 44 and the lower die 45 and is flush with the bottom of the upper die 44.

[0045] During use, when the baseband grinding is completed, the air pump 35 is started for air delivery. The three-way valve 34 is used to connect the first air delivery pipe 32, and the second air delivery pipe 33 is closed. At this time, the gas in the second air delivery pipe 33 is delivered from the first air delivery pipe 32 to the flow dividing plate 36, and then sprayed out from the nozzles at the bottom of the flow dividing plate 36, realizing the air blowing and dust removal of the surface of the ground baseband.

[0046] Please refer to Figure 2 , Figure 3 , Figure 5 and Figure 8 , the coating mechanism 4 includes a transverse movement component 41, a position adjustment component 42 and a cleaning component 43. The position adjustment component 42 is arranged on the transverse movement component 41, and the cleaning component 43 is arranged on the position adjustment component 42. The transverse movement component 41 includes two electric slide rails 411 symmetrically and fixedly installed on the left side of the front and rear side walls of the inverted U-shaped mounting frame 1. Electric sliders 412 are slidably connected to the tops of the two electric slide rails 411. The position adjustment component 42 includes a first fixing plate 422 fixedly connected to the tops of the two electric sliders 412. A reinforcing rib plate 413 is fixedly connected between the first fixing plate 422 and the electric slider 412. Two side plates 425 are symmetrically and fixedly connected to the front and rear of the first fixing plate 422. A lead screw 424 is rotatably connected between the two side plates 425. A third servo motor 421 is fixedly installed on the front side plate 425. The output end of the third servo motor 421 is fixedly connected to the front end of the lead screw 424. A movable block 423 is threadedly connected to the middle of the lead screw 424 through a ball nut. The right side of the movable block 423 is fixedly connected to the upper die 44. The lower die 45 is fixedly installed at the bottom right of the first fixing plate 422. The upper die 44 and the lower die 45 are slidably connected.

[0047] Please refer to Figure 5 , Figure 6 and Figure 7, the cleaning assembly 43 includes two second fixing plates 431 that are symmetrically fixed to the top of the first fixing plate 422 in the front and back. A rack 432 is fixedly installed on the right side of the two second fixing plates 431. Two driving parts 433 are symmetrically arranged on the front and back of the top of the upper die 44. Execution parts 434 are arranged on both the front and back side walls of the upper die 44. The driving part 433 includes a fixed arm 4332 fixedly connected to the left corner of the top of the upper die 44. A mounting shaft 4333 is rotatably installed at the top of the fixed arm 4332. A gear 4331 meshing with the rack 432 is fixedly sleeved on the top of the mounting shaft 4333. An eccentric cam 4334 is fixedly sleeved on the bottom of the mounting shaft 4333;

[0048] Please refer to Figure 5 , Figure 6 , Figure 7 , the execution part 434 includes a mounting plate 4344 fixedly connected to the side wall of the upper die 44. A limiting plate 4339 is fixedly installed on the left side of the top of the mounting plate 4344. A guide rod 4330 slidably penetrates through the middle of the limiting plate 4339. A second baffle 4337 is fixedly installed at the left end of the guide rod 4330. A second fixed seat is fixedly installed at the left end of the second baffle 4337. A second roller 4335 is rotatably connected to the second fixed seat. The outside of the second roller 4335 is in contact with the outside of the eccentric cam 4334. A second spring 4338 is sleeved on the left end of the guide rod 4330. The second spring 4338 is arranged between the limiting plate 4339 and the second baffle 4337. A stop block is fixedly installed at the right end of the guide rod 4330. A connecting block 4336 is fixedly installed at the bottom of the second baffle 4337. A cleaning brush 4342 is fixedly installed at the bottom of the connecting block 4336. A limiting slide rail 4343 is slidably connected to the middle of the top of the cleaning brush 4342. The top of the limiting slide rail 4343 is fixedly connected to the bottom of the mounting plate 4344. A scraping plate 4341 for scraping and cleaning the top of the lower die 45 is fixedly connected to the middle of the bottom of the mounting plate 4344.

[0049] During the use of the coating mechanism 4, after the baseband grinding and blowing cleaning are completed, the feeding system (not shown in the figure) is used to feed the silicone rubber composite film. The electric slide rail 411 is started, and the electric slider 412 on the electric slide rail 411 drives the lower die 45 and the upper die 44 to move horizontally left and right, adjusting the distance between the die head formed by the upper die 44 and the lower die 45 and the baseband. After adjustment, the silicone rubber composite film material is extruded between the upper die 44 and the lower die 45 and evenly coated on the baseband. Subsequently, the coated silicone rubber composite slurry is used by the hot air drying mechanism 8 to perform low-temperature surface pre-drying on the coated silicone rubber composite film, and high-temperature microwave drying is performed using the microwave dryer 10, and then winding is carried out through the winding disk 5. When it is necessary to clean the inside of the die head formed between the upper die 44 and the lower die 45, first start the air pump 35 to supply air, use the three-way valve 34 to open the second air pipe 33, close the first air pipe 32, and convey the outside air between the upper die 44 and the lower die 45, and use the high-pressure air flow to clean the blocked material between the upper die 44 and the lower die 45. When the high-pressure gas still cannot clear the blockage, start the third servo motor 421. The output end of the third servo motor 421 drives the lead screw 424 to rotate, and at the same time drives the movable block 423 and the upper die 44 thereon to move back and forth, realizing the relative sliding between the upper die 44 and the lower die 45, facilitating the exposure of the blocked area. While the upper die 44 moves back and forth, it drives the mounting plate 4344 and the scraper 4341 thereon to move back and forth, and uses the scraper 4341 to scrape the residual material. And as the upper die 44 moves back and forth, it drives the fixed arm 4332 and the mounting shaft 4333 thereon to move back and forth, synchronously driving the gear 4331 and the eccentric cam 4334 back and forth. Since the gear 4331 meshes with the rack 432, while moving back and forth, it drives the gear 4331 and the mounting shaft 4333 thereon to rotate, synchronously driving the eccentric cam 4334 to rotate. When the protruding part of the eccentric cam 4334 fits with the second roller 4335, it drives the second fixed seat and the second baffle 4337 thereon to move to the right, synchronously compressing the second spring 4338, and then synchronously driving the connecting block 4336 and the cleaning brush 4342 thereon to move to the right. When the protruding part of the eccentric cam 4334 moves away from the second roller 4335, at this time, under the elastic force of the second spring 4338, it drives the connecting block 4336 and the cleaning brush 4342 thereon to move to the left, thus realizing the left and right movement while the cleaning brush 4342 moves back and forth, and using the cleaning brush 4342 to clean the residual material on the lower die 45, realizing the effective blockage clearing between the upper die 44 and the lower die 45, without the need to stop the machine for disassembly and cleaning, saving time and effort.

[0050] Please refer to Figure 2 、 Figure 3 and Figure 9, the hot air drying mechanism 8 includes a mounting box 81 fixedly installed inside the inverted U-shaped mounting frame 1 through a connecting plate. An air outlet 82 is provided on one side of the mounting box 81 facing the silicone rubber composite film. A suction pump 84 is fixedly installed on the side of the mounting box 81 away from the silicone rubber composite film. The output end of the suction pump 84 is fixedly installed with a main pipe 85. A number of manifolds 86 are evenly installed on the main pipe 85. One end of the manifold 86 away from the main pipe 85 is located inside the mounting box 81. A number of heating pipes 83 are evenly installed inside the mounting box 81.

[0051] After the coating is completed, the heating pipes 83 are started at this time. The heating pipes 83 heat the air inside the mounting box 81. Then the suction pump 84 is started. The suction pump 84 sucks the outside air into the main pipe 85, and then blows it into the mounting box 81 after being split by the manifolds 86. The hot air in the mounting box 81 is blown out from the air outlet 82, realizing the low-temperature hot air drying of the silicone rubber composite film. Then, a high-temperature microwave drying is carried out by using the microwave dryer 10, realizing drying by two drying methods with different action principles at two levels, and the drying effect is good.

[0052] Please refer to Figure 10 , a preparation process of a silicone rubber composite film, comprising the following steps:

[0053] S1. Baseband feeding: After the baseband is unrolled from the unwinding reel, it is fed after being guided by the third conveying roller 13.

[0054] S2. Surface grinding: After the baseband is fed, it enters the top of the tension roller 14. At this time, the upper surface of the baseband is rotationally ground along the conveying direction by the grinding mechanism 2, and at the same time, reciprocating grinding is carried out perpendicular to the conveying direction. After grinding, the blown air cleaning mechanism 3 is used to blow air and remove dust from the ground baseband.

[0055] S3. Coating preparation: The baseband after blowing air and removing dust continues to be conveyed to the position of the coating roller 7, and the coating mechanism 4 is used to prepare the silicone rubber composite film on the baseband.

[0056] S4. Two-stage drying: After the baseband is coated, it continues to be conveyed along the first conveying roller 9. At this time, the hot air drying mechanism 8 is used to perform low-temperature hot air drying on the surface of the silicone rubber composite film, and then the microwave dryer 10 is used to perform high-temperature microwave drying on the silicone rubber composite film.

[0057] S5. Winding and collecting: After the silicone rubber composite film is dried, the winding reel 5 is used to wind and collect the dried silicone rubber composite film.

[0058] It should be noted that for the preparation process and device of the silicone rubber composite film, first, the baseband is unwound through an unwinding reel (not shown in the figure). The baseband is an aluminum strip or a copper strip. After unwinding, the baseband bypasses the third conveying roller 13 and the tensioning roller 14, then bypasses the coating roller 7, and enters under the guidance of the first conveying roller 9 and the second conveying roller 11, and finally winds onto the winding reel 5. Subsequently, the baseband is unwound using the unwinding cylinder. After unwinding, the baseband bypasses the third conveying roller 13 and enters above the tensioning roller 14. At this time, the second servo motor 20 in the grinding mechanism 2 is started, indirectly driving the grinding cylinder 23 to rotate and grind the baseband along the conveying direction. While the grinding cylinder 23 rotates, it moves back and forth, realizing the rotational and reciprocating grinding of the baseband. After grinding, the blown air cleaning mechanism 3 is used to blow and clean the ground baseband. After cleaning, the coating mechanism 4 is used to coat the surface of the baseband. The silicone rubber composite film is high-temperature vulcanized silicone rubber, and it is in a paste state after coating. After coating, the hot air drying mechanism 8 is used for low-temperature hot air drying, and then the microwave dryer 10 is used for high-temperature microwave drying, realizing drying by two drying methods with different working principles at two levels, and the drying effect is good. After drying, it is wound through the winding reel 5. When the die head composed of the upper die 44 and the lower die 45 is blocked, first, the blown air cleaning mechanism 3 is used to blow and clean with high-pressure air. When the high-pressure air cannot clean it, the third servo motor 421 is started. The output end of the third servo motor 421 drives the lead screw 424 to rotate, simultaneously driving the movable block 423 and the upper die 44 thereon to move back and forth, facilitating the exposure of the blocked area. And while the upper die 44 moves back and forth, it drives the scraping plate 4341 to move back and forth. The scraping plate 4341 is used to scrape the residual material. And as the upper die 44 moves back and forth, it indirectly drives the rotation of the eccentric cam 4334. Through the rotational extrusion of the eccentric cam 4334, the cleaning brush 4342 is driven to move left and right, and the cleaning brush 4342 is used to clean the surface of the upper die 44, realizing effective blockage removal between the upper die 44 and the lower die 45, without the need to stop the machine for disassembly and cleaning, saving time and effort.

[0059] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A preparation device for a silicone rubber composite film, comprising an inverted U-shaped mounting frame (1), characterized in that: On the right side of the inverted U-shaped mounting frame (1), a third conveying roller (13) is rotatably mounted. On the right side of the top of the inverted U-shaped mounting frame (1), a grinding mechanism (2) for grinding the aluminum strip is provided. In the middle of the top of the inverted U-shaped mounting frame (1), a blowing and cleaning mechanism (3) is provided. On the left top of the inverted U-shaped mounting frame (1), a coating roller (7) is rotatably mounted. And on the left side of the coating roller (7) of the inverted U-shaped mounting frame (1), a coating mechanism (4) for coating a silicone rubber composite film is provided. Inside the left side of the inverted U-shaped mounting frame (1), a hot air drying mechanism (8) and a microwave dryer (10) are provided; The grinding mechanism (2) includes a mounting seat (21) fixedly connected to the top of the front side of the inverted U-shaped mounting frame (1). On the left side of the mounting seat (21), a second servo motor (20) is fixedly installed. The output end of the second servo motor (20) rotatably penetrates through the front side of the inverted U-shaped mounting frame (1) and then a first baffle (24) is fixedly installed. At the center of the rear side of the first baffle (24), a square shaft (25) is fixedly installed. A grinding cylinder (23) is slidably sleeved on the middle of the square shaft (25). A fixed shaft (27) is fixedly installed on the rear side of the square shaft (25). The fixed shaft (27) rotatably penetrates through the rear side of the inverted U-shaped mounting frame (1). On the top of the rear side of the inverted U-shaped mounting frame (1), an arc-shaped plate (17) is fixedly installed. On the front side of the arc-shaped plate (17), a cylindrical cam (26) is fixedly installed. The center of the cylindrical cam (26) is a through hole, and the square shaft (25) passes through the through hole. On the rear side of the grinding cylinder (23), two first fixing seats (29) are symmetrically fixedly installed on the left and right. And a first roller (28) is rotatably connected to each of the two first fixing seats (29). The rear side of the first roller (28) is in contact with the front side of the cylindrical cam (26). A first spring (22) is sleeved on the front end of the square shaft (25). The first spring (22) is arranged between the first baffle (24) and the grinding cylinder (23); The coating mechanism (4) includes a transverse movement component (41), a position adjustment component (42), and a cleaning component (43). The position adjustment component (42) is arranged on the transverse movement component (41), and the cleaning component (43) is arranged on the position adjustment component (42). The transverse movement component (41) includes two electric slide rails (411) symmetrically and fixedly installed on the left sides of the front and rear side walls of the inverted U-shaped mounting frame (1). Electric sliders (412) are slidably connected to the tops of the two electric slide rails (411). The position adjustment component (42) includes a first fixed plate (422) fixedly connected to the tops of the two electric sliders (412). A reinforcing rib plate (413) is fixedly connected between the first fixed plate (422) and the electric slider (412). Two side plates (425) are symmetrically and fixedly connected to the front and rear of the first fixed plate (422). A lead screw (424) is rotatably connected between the two side plates (425). A third servo motor (421) is fixedly installed on the front side plate (425). The output end of the third servo motor (421) is fixedly connected to the front end of the lead screw (424). A movable block (423) is threadedly connected to the middle of the lead screw (424) through a ball nut. The right side of the movable block (423) is fixedly connected to an upper mold (44). A lower mold (45) is fixedly installed at the bottom right of the first fixed plate (422). The upper mold (44) and the lower mold (45) are slidably connected to each other.

2. The manufacturing device of a silicone rubber composite film according to claim 1, characterized in that: Two limiting grooves are symmetrically opened on the left and right sides of the front and rear side walls of the inverted U-shaped mounting frame (1). Screws (15) are slidably connected inside the limiting grooves. A tensioning roller (14) is rotatably connected between the front and rear corresponding screws (15). A pressing plate (16) is slidably sleeved on the screw (15). One side of the pressing plate (16) is in contact with the side wall of the inverted U-shaped mounting frame (1). A nut is threadedly connected to the screw (15), and the nut is in contact with the other side of the pressing plate (16). Support legs (12) are respectively fixedly installed at the four corners of the bottom of the inverted U-shaped mounting frame (1).

3. The manufacturing device of a silicone rubber composite film according to claim 1, characterized in that: The cleaning component (43) includes two second fixed plates (431) symmetrically and fixedly connected to the top of the first fixed plate (422). A rack (432) is fixedly installed on the right sides of the two second fixed plates (431). Two driving parts (433) are symmetrically arranged on the top of the upper mold (44). Execution parts (434) are arranged on the front and rear side walls of the upper mold (44). The driving part (433) includes a fixed arm (4332) fixedly connected to the left top corner of the upper mold (44). A mounting shaft (4333) is rotatably installed at the top of the fixed arm (4332). A gear (4331) meshing with the rack (432) is fixedly sleeved on the top of the mounting shaft (4333). An eccentric cam (4334) is fixedly sleeved at the bottom of the mounting shaft (4333).

4. The preparation device of a silicone rubber composite membrane according to claim 3, wherein: The execution part (434) includes a mounting plate (4344) fixedly connected to the side wall of the upper die (44). A limiting plate (4339) is fixedly installed at the left side of the top of the mounting plate (4344). A guide rod (4330) slidably penetrates through the middle of the limiting plate (4339). A second baffle (4337) is fixedly installed at the left end of the guide rod (4330). A second fixed seat is fixedly installed at the left end of the second baffle (4337). A second roller (4335) is rotatably connected to the second fixed seat. The outside of the second roller (4335) is in contact with the outside of the eccentric cam (4334).

5. The manufacturing apparatus of a silicone rubber composite film according to claim 4, characterized in that: A second spring (4338) is sleeved on the left end of the guide rod (4330). The second spring (4338) is arranged between the limiting plate (4339) and the second baffle (4337). A stop block is fixedly installed at the right end of the guide rod (4330). A connecting block (4336) is fixedly installed at the bottom of the second baffle (4337). A cleaning brush (4342) is fixedly installed at the bottom of the connecting block (4336). A limiting slide rail (4343) is slidably connected to the middle of the top of the cleaning brush (4342). The top of the limiting slide rail (4343) is fixedly connected to the bottom of the mounting plate (4344). A scraping plate (4341) for scraping and cleaning the top of the lower die (45) is fixedly connected to the middle of the bottom of the mounting plate (4344).

6. The manufacturing apparatus of a silicone rubber composite film according to claim 1, characterized in that: The air blowing and cleaning mechanism (3) includes two L-shaped fixing rods (31) symmetrically and fixedly connected to the top of the inverted U-shaped mounting frame (1) front and back. A flow dividing plate (36) is fixedly installed between the two L-shaped fixing rods (31). A number of nozzles are evenly installed at the bottom of the flow dividing plate (36). A first air delivery pipe (32) is fixedly connected to the center of the top of the flow dividing plate (36). One end of the first air delivery pipe (32) away from the flow dividing plate (36) is fixedly installed with a three-way valve (34). An air pump (35) is fixedly installed at the bottom of the three-way valve (34) through a pipe. A second air delivery pipe (33) is fixedly installed on one side of the top of the three-way valve (34). One end of the second air delivery pipe (33) away from the three-way valve (34) is fixedly connected to a flow dividing pipe (37). A number of air injection pipes (38) are evenly installed at the bottom of the flow dividing pipe (37). The air injection pipes (38) penetrate through the bottom of the upper die (44) fixedly. The bottom of the air injection pipes (38) is located between the upper die (44) and the lower die (45), and is flush with the bottom of the upper die (44).

7. The manufacturing apparatus of a silicone rubber composite film according to claim 1, characterized in that: A winding disc (5) for winding the silicone rubber composite film is rotatably installed at the bottom near the corner inside the inverted U-shaped mounting frame (1). A first servo motor (6) is fixedly installed at the lower left corner of the front side of the inverted U-shaped mounting frame (1). The output end of the first servo motor (6) is fixedly connected to the center of the front side of the winding disc (5). A first conveying roller (9) and a second conveying roller (11) are rotatably connected to the middle of the inverted U-shaped mounting frame (1).

8. The manufacturing apparatus of a silicone rubber composite film according to claim 7, characterized in that: The hot air drying mechanism (8) includes a mounting box (81) fixedly installed inside the inverted U-shaped mounting frame (1) through a connecting plate. An air outlet (82) is provided on one side of the mounting box (81) facing the silicone rubber composite film. A suction pump (84) is fixedly installed on the side of the mounting box (81) away from the silicone rubber composite film. The output end of the suction pump (84) is fixedly installed with a main pipe (85). A number of manifolds (86) are evenly installed on the main pipe (85). One end of the manifold (86) away from the main pipe (85) is located inside the mounting box (81). A number of heating pipes (83) are evenly installed inside the mounting box (81).

9. A preparation process of a silicone rubber composite film, using the preparation device of a silicone rubber composite film described in any one of claims 1-8, characterized in that: It includes the following steps: S1. Baseband feeding: After the baseband is unrolled from the unwinding reel, it is fed after being guided by the third conveying roller (13). S2. Surface grinding: After the baseband is fed, it enters the top of the tensioning roller (14). At this time, the upper surface of the baseband is rotationally ground along the conveying direction by the grinding mechanism (2), and at the same time, it is reciprocally ground perpendicular to the conveying direction. After grinding, the blown air cleaning mechanism (3) is used to blow and dust the ground baseband. S3. Coating preparation: The baseband after blowing and dust removal is continuously conveyed to the position of the coating roller (7), and the coating mechanism (4) is used to prepare the silicone rubber composite film on the baseband. S4. Two-stage drying: When the baseband coating is completed, it is continuously conveyed along the first conveying roller (9). At this time, the hot air drying mechanism (8) is used to perform low-temperature hot air drying on the surface of the silicone rubber composite film, and then the microwave dryer (10) is used to perform high-temperature microwave drying on the silicone rubber composite film. S5. Winding and collecting: When the silicone rubber composite film is dried, the winding reel (5) is used to wind and collect the dried silicone rubber composite film.

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