Preparation process and preparation device of silicone rubber composite film

Abstract

The invention relates to a preparation process and a preparation device of a silicone rubber composite film, and belongs to the technical field of silicone rubber composite film coating preparation. The preparation process and the preparation device of the silicone rubber composite film comprise an inverted-U-shaped mounting rack, and a third conveying roller is rotationally mounted on the right side of the inverted-U-shaped mounting rack; a polishing mechanism used for polishing an aluminum strip is arranged on the right side of the top of the inverted-U-shaped mounting frame, an air blowing cleaning mechanism is arranged in the middle of the top of the inverted-U-shaped mounting frame, and a coating roller is rotationally mounted on the top of the left side of the inverted-U-shaped mounting frame. The base band is rotationally polished in the conveying direction and reciprocatingly polished in the direction perpendicular to the conveying direction through the polishing cylinder in the polishing mechanism, the bonding firmness degree of the silicone rubber composite film and the base band is improved, transverse movement of the upper mold is achieved through the position adjusting assembly, and a blocked area is exposed while transverse movement is conducted; and under the cooperation of the driving part and the execution part, the cleaning brush is used for brushing and cleaning the lower die in a reciprocating manner.

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] A 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 blending compounding preparation, coating preparation, lamination compounding preparation, and in-situ polymerization. Among them, the slit coating preparation equipment is a relatively common one. The following problems exist in the coating preparation process: 1. During the coating preparation process of the slit 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 the silicone rubber composite film falling off is likely to occur. 2. During the preparation process of the slit coating preparation equipment, impurities are likely to remain inside the die head. When used for a long time, 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.

[0003] 3. When the slit 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. At the same time, after the 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

[0004] 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 to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions: A preparation device for a silicone rubber composite film includes 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 the 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 installed 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 inside the left side of the inverted U-shaped mounting frame.

[0006] 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 installed on the left side of the mounting seat. The output end of the second servo motor rotates through the front side of the inverted U-shaped mounting frame and then is fixedly installed with a first baffle. A square shaft is fixedly installed 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 installed at the rear side of the square shaft. The fixed shaft rotates through the rear side of the inverted U-shaped mounting frame. An arc-shaped plate is fixedly installed at the top of the rear side of the inverted U-shaped mounting frame. A cylindrical cam is fixedly installed 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 fixed seats are symmetrically and fixedly installed 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 fixed 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.

[0007] 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 installed at the four corners of the bottom of the inverted U-shaped mounting frame.

[0008] 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 installed 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 installed 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 part of the lead screw through a ball nut. The right side of the movable block is fixedly connected with an upper die. The lower die is fixedly installed at the bottom right of the first fixing plate. The upper die and the lower die are slidably connected.

[0009] Preferably, the cleaning component includes two second fixing plates symmetrically and fixedly connected to the top of the first fixing plate. 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 rear of the top of the upper die. Execution parts are arranged on the front and rear side walls of the upper die. The driving part includes a fixed arm fixedly connected to the left top corner of the top of the upper die. A mounting shaft is rotatably installed at the top of the fixed arm. A gear meshing with the rack is fixedly sleeved on the top of the mounting shaft. An eccentric cam is fixedly sleeved on the bottom of the mounting shaft.

[0010] 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, and the outside of the second roller is in contact with the outside of the eccentric cam.

[0011] 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.

[0012] 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. A first air pipe is fixedly connected to the center of the top of the flow dividing plate. A three-way valve is fixedly installed at the end of the first air pipe away from the flow dividing plate. An air pump is fixedly installed at the bottom of the three-way valve through a pipe. A second air pipe is fixedly installed on one side of the top of the three-way valve. A flow dividing pipe is fixedly connected to the end of the second air pipe away from the three-way valve. A number of air jet pipes are evenly installed at the bottom of the flow dividing pipe. The air jet pipes penetrate through the upper die at the bottom, and the bottoms of the air jet pipes are located between the upper die and the lower die and are flush with the bottom of the upper die.

[0013] Preferably, a winding disc for winding the silicone rubber composite film is rotatably installed at a position near the corner at the bottom inside the inverted U-shaped mounting frame. 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 to the middle of the inverted U-shaped mounting frame.

[0014] Preferably, the hot air drying mechanism includes a mounting box fixedly installed inside the inverted U-shaped mounting frame through a connecting plate. An air outlet is opened on the side of the mounting box facing the silicone rubber composite film. A suction pump is fixedly installed on the side of the mounting 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. The end of the manifold away from the main pipe is located inside the mounting box. A number of heating pipes are evenly installed inside the mounting box.

[0015] A preparation process for a silicone rubber composite film includes the following steps: S1. Baseband feeding: After the baseband is unwound from the unwinding disc, it is fed after being guided by the third conveying roller.

[0016] S2. Surface Grinding: After the baseband is fed in, it enters the top of the tension roller. At this time, the grinding mechanism rotates and grinds the upper surface of the baseband along the conveying direction, and at the same time reciprocates and grinds perpendicular to the conveying direction. After grinding, the blown air cleaning mechanism blows air to remove dust from the ground baseband.

[0017] S3. Coating Preparation: The baseband after dust removal by blowing air continues to be conveyed to the position of the coating roller, and the coating mechanism is used to prepare the coating of the silicone rubber composite film on the baseband.

[0018] S4. Two-stage Drying: When the coating of the baseband is completed, it continues to be 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.

[0019] S5. Winding and Collection: When the drying of the silicone rubber composite film is completed, the winding disk is used to wind and collect the dried silicone rubber composite film.

[0020] The beneficial effects of the present invention are as follows: 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, 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 strength between the silicone rubber composite film and the baseband. 2. In the present invention, the distance between the die head composed of the upper and lower dies and the baseband is adjusted through the transverse movement component in the coating mechanism, and the lateral movement of the upper die is realized through the position adjustment component. During the lateral movement, the blocked area is exposed. During the lateral movement, 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 is used to reciprocally brush and clean the lower die, and combined with the blowing air cleaning of the blowing air cleaning mechanism, automatic cleaning of the die head is realized, and there is no need to stop the machine for disassembly and cleaning.

[0021] 3. In the present invention, the surface of the coated silicone rubber composite film is pre-dried with low-temperature hot air by the hot air drying mechanism, and then high-temperature drying is carried out by the microwave dryer, realizing drying in two drying methods with different temperatures and different action principles, with good drying effect and avoiding the occurrence of uneven drying. Description of the Drawings

[0022] Figure 1 is the three-dimensional view of the overall structure of the present invention; Figure 2 is the partial cross-sectional view of the overall structure of the present invention; Figure 3 is the three-dimensional view of the partial structure of the present invention; Figure 4 is the perspective view of the grinding mechanism of the present invention; Figure 5 is the perspective view of the coating mechanism of the present invention; Figure 6 is the schematic diagram of the first perspective of the partial cross-section of the coating mechanism of the present invention; Figure 7 is of the present invention Figure 6 schematic diagram of the enlarged area A in; Figure 8 is the schematic diagram of the second perspective of the partial cross-section of the coating mechanism of the present invention; Figure 9 is the partial cross-sectional view of the first conveying roller of the present invention; Figure 10 is the process flow chart of the present invention.

[0023] In the figure: 1, inverted U-shaped mounting frame; 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, air blowing and cleaning mechanism; 31, L-shaped fixed rod; 32, first air pipe; 33, second air pipe; 34, three-way valve; 35, air pump; 36, shunt plate; 37, shunt pipe; 38, air jet pipe; 4, coating mechanism; 41, transverse movement component; 411, electric slide rail; 412, electric slider; 413, reinforcing rib plate; 42, position adjustment component; 421, third servo motor; 422, first fixing plate; 423, movable block; 424, lead screw; 425, side plate; 43, cleaning component; 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, scraping plate; 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, mounting 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

[0024] The present application will be further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed 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 based on the above application content.

[0025] Example: 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 arranged on the upper right side of the top of the inverted U-shaped mounting frame 1. A blowing and cleaning mechanism 3 is arranged 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 arranged 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 arranged on the left side inside 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 back. A pressure plate 16 is slidably sleeved on the screw rod 15. One side of the pressure 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 pressure 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 disc 5 for winding the silicone rubber composite film is rotatably installed at a position near the corner of 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 disc 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.

[0026] During the use process, first, the baseband is unwound through an unwinding disc (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, and finally winds onto the winding disc 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, and the microwave dryer 10 is used for high-temperature microwave drying.

[0027] 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 rotatably penetrates 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 rotatably penetrates through the rear side of the inverted U-shaped mounting frame 1. An arc-shaped plate 17 is fixedly installed at 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, and the through hole is a circular through hole, and the square shaft 25 passes through the through hole. Two first fixed seats 29 are fixedly installed symmetrically on the left and right sides of the rear side of the grinding cylinder 23, and a first roller 28 is rotatably connected to each of the two first fixed 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.

[0028] During the use of the grinding mechanism 2, first, turn the nut on the screw 15 to loosen the pressing plate 16 from pressing and fixing 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 driving the square shaft 25 and the grinding cylinder 23 thereon to rotate, and using the grinding cylinder 23 to rotate and grind the baseband along the conveying direction. While the grinding cylinder 23 rotates, it drives the first fixed 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 convex position on the cylindrical cam 26 contacts the first roller 28, it presses the first roller 28 and the first fixed seat 29 forward, driving the grinding cylinder 23 to move forward and synchronously compressing the first spring 22. When the first roller 28 moves away from the convex part of the cylindrical cam 26, under the elastic force of the first spring 22, it drives the grinding cylinder 23 and the first fixed seat 29 thereon to move backward, synchronously driving the first roller 28 to move backward, realizing the rotational and reciprocating grinding of the baseband, with good grinding effect, increasing the surface roughness of the baseband, and improving the bonding strength between the silicone rubber composite film and the baseband.

[0029] 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. The center of the top of the flow dividing plate 36 is fixedly connected to a first air delivery pipe 32. 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. A gas pump 35 is fixedly installed at the bottom of the three-way valve 34 through a pipeline. One side of the top of the three-way valve 34 is fixedly installed with a second air delivery pipe 33. 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.

[0030] During use, when the baseband grinding is completed, start the gas pump 35 to deliver air. Use the three-way valve 34 to connect the first air delivery pipe 32 and close the second air delivery pipe 33. 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 ejected from the nozzles at the bottom of the flow dividing plate 36, realizing the blowing and dust removal of the surface of the ground baseband.

[0031] 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 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 sliders 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. The middle of the lead screw 424 is threadedly connected with a movable block 423 through a ball nut. The right side of the movable block 423 is fixedly connected to an upper die 44. The bottom of the right side of the first fixed plate 422 is fixedly installed with a lower die 45. The upper die 44 and the lower die 45 are slidably connected.

[0032] 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 top of the upper die 44 in the front and back. 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. An installation shaft 4333 is rotatably installed on the top of the fixed arm 4332. A gear 4331 that meshes with the rack 432 is fixedly sleeved on the top of the installation shaft 4333. An eccentric cam 4334 is fixedly sleeved on the bottom of the installation shaft 4333; 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 fixing seat is fixedly installed at the left end of the second baffle 4337. A second roller 4335 is rotatably connected to the second fixing 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 stopper 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.

[0033] During the use of the coating mechanism 4, after the baseband grinding and air 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 carried out using the microwave dryer 10, and then winding is performed 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 remaining 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 remaining material on the lower die 45, realizing the effective blockage cleaning 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.

[0034] 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.

[0035] 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.

[0036] Please refer to Figure 10 , a preparation process of a silicone rubber composite film, comprising 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 tension roller 14. At this time, the upper surface of the baseband is rotated and 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 blows air to remove dust from the ground baseband; S3. Coating preparation: The baseband after blowing air to remove 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; S4. Two-stage drying: When the baseband coating is completed, 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; 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.

[0037] It should be noted that for the preparation process and device of the silicone rubber composite film, first, the base tape is unrolled through an unwinding reel (not shown in the figure). The base tape is an aluminum tape or a copper tape. After being unrolled, the base tape bypasses the third conveying roller 13 and the tensioning roller 14, then bypasses the coating roller 7, and enters the guiding path passing through the first conveying roller 9 and the second conveying roller 11, and finally is wound onto the winding reel 5. Subsequently, the base tape is unrolled using the unwinding cylinder. After being unrolled, the base tape 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 base tape along the conveying direction. While the grinding cylinder 23 rotates, it moves back and forth, realizing the rotational and reciprocating grinding of the base tape. After grinding, the blown air cleaning mechanism 3 is used to blow and clean the ground base tape. After cleaning, the coating mechanism 4 is used to coat the surface of the base tape. 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, 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. Moreover, while the upper die 44 moves back and forth, it drives the scraper 4341 to move back and forth, using the scraper 4341 to scrape off 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 rotation and extrusion of the eccentric cam 4334, the cleaning brush 4342 is driven to move left and right, using the cleaning brush 4342 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.

[0038] The above embodiments only represent several implementation modes of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention 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 device for preparing a silicone rubber composite film, comprising an inverted U-shaped mounting frame (1), characterized in that: A third conveying roller (13) is rotatably mounted on the right side of the inverted U-shaped mounting frame (1); a grinding mechanism (2) for grinding the aluminum strip is arranged on the right side of the top of the inverted U-shaped mounting frame (1); an air blowing cleaning mechanism (3) is arranged in the middle of the top of the inverted U-shaped mounting frame (1); a coating roller (7) is rotatably mounted on the top of the left side of the inverted U-shaped mounting frame (1); a coating mechanism (4) for coating a silicone rubber composite film is arranged on the left side of the coating roller (7) on the inverted U-shaped mounting frame (1); and a hot air drying mechanism (8) and a microwave drying machine (10) are arranged on the left side of the inside of the inverted U-shaped mounting frame (1); The grinding mechanism (2) comprises 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 mounted on the left side of the mounting seat (21), an output end of the second servo motor (20) rotates through the front side of the inverted U-shaped mounting frame (1) and a first baffle (24) is fixedly mounted thereon, a square shaft (25) is fixedly mounted at the center of the rear side of the first baffle (24), a grinding cylinder (23) is slidably sleeved in the middle of the square shaft (25), a fixed shaft (27) is fixedly mounted on 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), and the inverted U-shaped mounting frame (1) is fixedly mounted thereon. ) is fixedly mounted on the top of the rear side, and a cylindrical cam (26) is fixedly mounted on the front side of the curved plate (17). The center of the cylindrical cam (26) is a through hole, and the square shaft (25) passes through the through hole. Two No. 1 fixing seats (29) are fixedly mounted on the rear side of the grinding cylinder (23) in a symmetrical manner, and the two No. 1 fixing seats (29) are rotatably connected to a No. 1 roller (28). The rear side of the No. 1 roller (28) is in contact with the front side of the cylindrical cam (26). A No. 1 spring (22) is sleeved on the front end of the square shaft (25), and the No. 1 spring (22) is arranged between the No. 1 baffle (24) and the grinding cylinder (23).

2. The device for preparing a silicone rubber composite film according to claim 1, characterized in that: The inverted U-shaped mounting frame (1) has two limit grooves symmetrically arranged on both the front and rear side walls, and the limit grooves are slidably connected with screw rods (15), and a tension roller (14) is rotatably connected between the two corresponding front and rear screw rods (15), and a crimping plate (16) is slidably sleeved on the screw rod (15), and one side of the crimping plate (16) is fitted with the side wall of the inverted U-shaped mounting frame (1), and a nut is threadedly connected on the screw rod (15), and the nut is fitted with the other side of the crimping plate (16), and support legs (12) are fixedly installed at the four corners of the bottom of the inverted U-shaped mounting frame (1).

3. The device for preparing a silicone rubber composite film according to claim 1, characterized in that: The coating mechanism (4) comprises 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); the cleaning component (43) is arranged on the position adjustment component (42); the transverse movement component (41) comprises two electric slide rails (411) symmetrically fixedly mounted on the left sides of the front and rear side walls of the inverted U-shaped mounting frame (1); the tops of the two electric slide rails (411) are both slidably connected to electric sliders (412); the position adjustment component (42) comprises a first fixing plate (422) fixedly connected to the tops of the two electric sliders (412); a fixing plate (422) is fixedly mounted between the first fixing plate (422) and the electric sliders (412); A reinforcing rib plate (413) is fixedly connected to the first fixed plate (422), two side plates (425) are fixedly connected to the first fixed plate (422) symmetrically in front and back, a screw rod (424) is connected to the two side plates (425) for common rotation, a third servo motor (421) is fixedly installed on the side plate (425) located on the front side, an output end of the third servo motor (421) is fixedly connected to the front end of the screw rod (424), a movable block (423) is threadedly connected to the middle of the screw rod (424) through a ball nut, an upper mold (44) is fixedly connected to the right side of the movable block (423), a lower mold (45) is fixedly installed on the right bottom of the first fixed plate (422), and the upper mold (44) and the lower mold (45) are slidably connected.

4. The device for preparing a silicone rubber composite film according to claim 3, characterized in that: The cleaning assembly (43) comprises two No. 2 fixing plates (431) symmetrically fixedly connected to the top of the No. 1 fixing plate (422), a rack (432) being fixedly mounted on the right sides of the two No. 2 fixing plates (431), two driving parts (433) being symmetrically arranged on the top of the upper mold (44), an execution part (434) being arranged on both the front and rear side walls of the upper mold (44), the driving part (433) comprising a fixing arm (4332) fixedly connected to the left corner of the top of the upper mold (44), a mounting shaft (4333) being rotatably mounted on the top of the fixing arm (4332), a gear (4331) meshing with the rack (432) being fixedly sleeved on the top of the mounting shaft (4333), and an eccentric cam (4334) being fixedly sleeved on the bottom of the mounting shaft (4333).

5. The device for preparing a silicone rubber composite film according to claim 4, characterized in that: The execution part (434) comprises a mounting plate (4344) fixedly connected to the side wall of the upper mold (44), a limit plate (4339) fixedly installed on the left side of the top of the mounting plate (4344), a guide rod (4330) slidingly penetrates the middle of the limit plate (4339), a second baffle plate (4337) fixedly installed on the left end of the guide rod (4330), a second fixing seat fixedly installed on the left end of the second baffle plate (4337), a second roller (4335) rotatably connected to the second fixing seat, and the outer portion of the second roller (4335) is in contact with the outer portion of the eccentric cam (4334).

6. The device for preparing a silicone rubber composite film according to claim 5, characterized in that: The left end of the guide rod (4330) is sleeved with a No. 2 spring (4338), which is arranged between the limit plate (4339) and the No. 2 baffle plate (4337). The right end of the guide rod (4330) is fixedly installed with a baffle block, the bottom of the No. 2 baffle plate (4337) is fixedly installed with a connecting block (4336), the bottom of the connecting block (4336) is fixedly installed with a cleaning brush (4342), the middle of the top of the cleaning brush (4342) is slidably connected to the limit slide rail (4343), the top of the limit slide rail (4343) is fixedly connected to the bottom of the mounting plate (4344), and the middle of the bottom of the mounting plate (4344) is fixedly connected with a scraper (4341) for scraping and cleaning the top of the lower mold (45).

7. The device for preparing a silicone rubber composite film according to claim 1, characterized in that: The air blowing cleaning mechanism (3) comprises two L-shaped fixing rods (31) symmetrically fixedly connected to the top of the inverted U-shaped mounting frame (1), a diverter plate (36) being fixedly mounted between the two L-shaped fixing rods (31), a plurality of nozzles being evenly mounted at the bottom of the diverter plate (36), a No. 1 air supply pipe (32) being fixedly connected to the center of the top of the diverter plate (36), a three-way valve (34) being fixedly mounted at one end of the No. 1 air supply pipe (32) away from the diverter plate (36), and a nozzle (34) being fixedly mounted at the bottom of the three-way valve (34). An air pump (35) is fixedly installed on the upper mold (44) through a pipeline, a second air supply pipe (33) is fixedly installed on one side of the top of the three-way valve (34), and a diverter pipe (37) is fixedly connected to one end of the second air supply pipe (33) away from the three-way valve (34). A plurality of air injection pipes (38) are evenly installed on the bottom of the diverter pipe (37), and the bottom of the air injection pipe (38) is fixedly passed through the upper mold (44). The bottom of the air injection pipe (38) is located between the upper mold (44) and the lower mold (45), and is flush with the bottom of the upper mold (44).

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

9. The device for preparing a silicone rubber composite film according to claim 8, characterized in that: The hot air drying mechanism (8) comprises a mounting box (81) fixedly mounted inside an inverted U-shaped mounting frame (1) via a connecting plate, an air outlet (82) being provided on a side of the mounting box (81) facing the silicone rubber composite membrane, a suction pump (84) being fixedly mounted on a side of the mounting box (81) away from the silicone rubber composite membrane, a main pipe (85) being fixedly mounted on the output end of the suction pump (84), a plurality of manifolds (86) being evenly mounted on the main pipe (85), an end of the manifold (86) away from the main pipe (85) being located inside the mounting box (81), and a plurality of heating pipes (83) being evenly mounted inside the mounting box (81).

10. A process for preparing a silicone rubber composite film, using the device for preparing a silicone rubber composite film according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, base tape feeding: after the base tape is unwound from the unwinding reel, it is guided by the third conveying roller (13) and then fed; S2, surface grinding: after the base belt is fed, it enters the top of the tensioning roller (14), at which time the upper surface of the base belt is rotated and grinded along the conveying direction by the grinding mechanism (2), and at the same time, it is reciprocated and grinded perpendicular to the conveying direction. After the grinding is completed, the polished base belt is blown and dusted by the air cleaning mechanism (3); S3, coating preparation: the base belt after the dust removal by air blowing is continuously conveyed to the position of the coating roller (7), and the base belt is coated with a silicone rubber composite film by using the coating mechanism (4); S4, two-stage drying: after the base tape is coated, it continues to be transported along the No. 1 conveying roller (9), and at this time, the hot air drying mechanism (8) is used to perform hot air low-temperature drying on the surface of the silicone rubber composite film, and then the microwave drying machine (10) is used to perform high-temperature microwave drying on the silicone rubber composite film; S5, winding and collecting: After the silicone rubber composite film is dried, the dried silicone rubber composite film is wound and collected using a winding reel (5).

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