Coating equipment for producing polyester film silica gel belt

Abstract

The invention relates to the technical field of silica gel belt surface coating, in particular to coating equipment for polyester film silica gel belt production, which comprises a machine body, a driving device, an unwinding roller, a winding roller, a guide roller, a compression roller, a coating roller, a storage box, a comma scraper and a driving motor, an adjusting rod arranged on an output shaft of a driving motor synchronously rotates anticlockwise, an arc-shaped plate at the upper end of the adjusting rod rotates, and the arc-shaped plate pushes the lower side of a sliding plate, so that the sliding plate slides upwards in a sliding groove, the sliding plate drives an adjusting roller to move upwards in the process, and in the upward moving process of the adjusting roller, the adjusting roller is driven to move upwards; the silica gel sheet located on the lower side of the adjusting roller synchronously moves upwards, so that the gap between the silica gel sheet and the rubber belt is enlarged, then after the gap between the comma scraper and the coating roller is enlarged, the gap between the lower side of the silica gel sheet and the rubber belt is synchronously enlarged, and the rubber belt can smooth coatings with different thicknesses; and the coating effect on the silica gel sheet is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of surface coating of silicone tapes, and specifically to a coating device for producing polyester film silicone tapes. Background Art

[0002] Silicone tapes are functional tapes made with silicone rubber as the core material and have a unique molecular structure; silicone tapes mainly consist of silicone rubber (raw rubber + fillers such as silica, vulcanizing agents, coupling agents), optional substrates (PET, PI films, fiberglass cloth, etc.) and a release layer (silicone oil paper).

[0003] The production process of silicone tapes mainly has the following steps: Unwinding of the substrate: Substrates such as PET and PI are smoothly conveyed through a tension control system; Coating of the rubber compound: Using a coating head (such as a comma knife coater, microgravure roll, slot die head) to transfer the silicone rubber compound (liquid or hot melt state) onto the substrate; Vulcanization and curing: Through high temperature (150 - 200 °C) or UV light curing, the silicone rubber is crosslinked into a solid rubber layer; Rewinding and slitting: Rewinding the coated substrate and slitting it into finished tapes of a specified width.

[0004] In the production process of the above silicone tapes, the coating of the rubber compound is a crucial part. When coating the surface of the tape, a roll coater is mostly used. The coating roller in the roll coater contacts the coating material, and the coating moves along with the coating roller to coat the coating material on the silicone tape. During this process, the comma knife in the roll coater controls the coating thickness of the coating roller.

[0005] In the process of using the above-mentioned existing roll coater, the comma knife is in a state of constantly scraping and blocking the coating material, making the thickness of the coating on the coating roller uniform. If it is necessary to change the coating thickness on the tape, it is necessary to change the gap between the cutting edge of the comma knife and the coating roller, so that the comma knife controls the coating thickness on the surface of the coating roller. However, during the long-term use of the coating roller, impurities in the coating material (such as lumps, metal debris) or dust particles in the environment (>50 μm) are embedded in the gap between the scraper and the substrate to form "abrasives", which accelerates the wear of the comma knife. When the comma knife is worn, the surface of the coating on the coating roller becomes uneven, resulting in stripe defects such as strip-shaped protrusions or strip-shaped gaps on the coating layer on the surface of the silicone tape; this forces the staff to stop the machine to replace the comma knife, thereby affecting the coating efficiency.

[0006] To solve the above problems, the present application proposes a coating device for producing polyester film silicone tapes. Summary of the Invention

[0007] The present invention provides a coating device for the production of polyester film silicone tape. The coating device includes a roll coater, and the roll coater includes a machine body and a driving device on the machine body. The machine body includes: An unwind roll, which is detachably connected to one end of the machine body and connected to the driving device on the machine body; A winding roll, which is detachably connected to the machine body at the same end as the unwind roll, and the winding roll is located above the unwind roll; A guide roll, which is rotatably connected to the machine body, and the horizontal height of the guide roll is higher than that of the unwind roll; A pressure roll, which is rotatably connected to the machine body, and the horizontal height of the pressure roll is lower than that of the guide roll; A coating roll, which is rotatably connected to the machine body, the coating roll is located directly below the pressure roll, and there is a gap between the coating roll and the pressure roll; A storage tank, which is arranged inside the machine body, and the lower side of the coating roll is located inside the storage tank; A comma knife, which is rotatably connected inside the machine body, there is a gap between the cutting edge of the comma knife and the coating roll, and one end of the comma knife is connected to a driving motor arranged outside the machine body; a fan-shaped groove is opened at one end of the comma knife away from the driving motor, a rotating rod is rotatably connected inside the fan-shaped groove, a cleaning blade is arranged at one end of the rotating rod located on the surface of the comma knife, and the rotating rod is driven by a motor; A back roll, which is arranged inside the machine body, and the horizontal height of the back roll is higher than that of the pressure roll; An optical sensor, which is arranged inside the machine body and is located between the comma knife and the back roll; A drying oven, which is located at the upper end inside the machine body, and the drying oven is located between the back roll and the winding roll.

[0008] As a preferred solution of the present application: Two shaft wheels are arranged between the back roll and the coating roll. The shaft wheels are arranged on the inner side of the machine body, and a rubber belt is sleeved outside the two shaft wheels. One of the shaft wheels is rotated by a set micro motor. The optical sensor is located between the comma knife and the rubber belt, and the surface of the rubber belt is treated smoothly.

[0009] As a preferred solution of the present application: A chute is opened on the inner side wall of the machine body, a sliding plate is slidably connected inside the chute, support plates are arranged at both ends of the lower side of the sliding plate, an adjusting roll is rotatably connected between the two support plates, the adjusting roll is located above the rubber belt, and there is a gap between the adjusting roll and the rubber belt; An adjusting rod is arranged on the output shaft of the driving motor, an arc-shaped plate is arranged at the upper end of the adjusting rod, and the arc-shaped plate contacts the lower side of the sliding plate.

[0010] As a preferred solution of the present application: An installation plate is arranged inside the machine body, an installation groove is opened at the upper end of the installation plate, a cleaning knife is arranged on the lower inner wall of the installation groove, and the upper end of the cleaning knife contacts the lower end of the lower part of the rubber belt.

[0011] As a preferred embodiment of the present application: A roller is rotatably connected inside the installation groove. The roller is located between the rubber belts, and at the same time, the lower rubber belt is located between the roller and the cleaning knife.

[0012] As a preferred embodiment of the present application: The inside of the roller is specifically provided with a heat conducting wire, and the heat conducting wire is heated by electricity.

[0013] As a preferred embodiment of the present application: The mounting plate is slidably connected up and down inside the machine body. A tension spring is arranged between the mounting plate and the machine body. In the initial state, the tension spring is in a stretched state.

[0014] As a preferred embodiment of the present application: The lower inner wall of the installation groove is inclined, and a heating plate is arranged on the lower inner wall of the installation groove, and the cleaning knife is arranged on the heating plate.

[0015] The beneficial effects of the present invention are as follows: When the drive motor on one side of the comma knife rotates, the adjusting rod arranged on the output shaft of the drive motor rotates counterclockwise synchronously. The arc-shaped plate at the upper end of the adjusting rod rotates, and the arc-shaped plate pushes against the lower side of the sliding plate, causing the sliding plate to slide upward inside the sliding groove. During this process, the sliding plate drives the adjusting roller to move upward. During the upward movement of the adjusting roller, the silica gel sheet located below the adjusting roller moves upward synchronously, making the gap between the silica gel sheet and the rubber belt larger. Furthermore, after the gap between the comma knife and the coating roller becomes larger, the gap between the lower side of the silica gel sheet and the rubber belt becomes larger synchronously, enabling the rubber belt to smooth coatings of different thicknesses, thereby improving the coating effect on the silica gel sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the coating equipment in the present invention; Figure 2 is a view of the internal structure of the machine body in the present invention; Figure 3 is Figure 2 a structural view of removing the silica gel sheet; Figure 4 is Figure 2 a structural view of removing the drying box and the storage box; Figure 5 is Figure 2 a front view of; Figure 6 is a structural view of the coating roller and the comma knife in the present invention; Figure 7 is Figure 6 a partial enlarged view of part A in; Figure 8 is a structural view of the drive motor in the present invention; Figure 9 is a structural view of the comma knife in the present invention; Figure 10 It is a structural view of the fan-shaped groove in the present invention.

[0017] In the figure: body 1, driving device 2, unwinding roller 11, winding roller 12, guide roller 13, pressure roller 14, coating roller 15, storage tank 16, comma knife 17, driving motor 171, fan-shaped groove 172, rotating rod 173, cleaning blade 174, backing roller 18, optical sensor 19, drying oven 3, shaft wheel 111, rubber belt 112, sliding groove 113, sliding plate 114, support plate 115, adjusting roller 116, adjusting rod 117, arc plate 118, mounting plate 4, mounting groove 41, cleaning knife 42, roller 43, heating plate 44. Specific embodiments

[0018] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0019] Embodiment 1:

[0020] As Figures 1 to 10 shown; a coating device for producing polyester film silicone tape, the coating device includes a roll coater, the roll coater includes a body 1 and a driving device 2 on the body 1, and the body 1 includes: An unwinding roller 11, which is detachably connected to one end of the body 1 and connected to the driving device 2 on the body 1; A winding roller 12, which is detachably connected to the body 1 at the same end as the unwinding roller 11, and the winding roller 12 is located above the unwinding roller 11; A guide roller 13, which is rotatably connected to the body 1, and the horizontal height of the guide roller 13 is higher than that of the unwinding roller 11; A pressure roller 14, which is rotatably connected to the body 1, and the horizontal height of the pressure roller 14 is lower than that of the guide roller 13; A coating roller 15, which is rotatably connected to the body 1, the coating roller 15 is located directly below the pressure roller 14, and there is a gap between the coating roller 15 and the pressure roller 14; A storage tank 16, which is arranged inside the body 1, and the lower side of the coating roller 15 is located inside the storage tank 16; A comma knife 17, which is rotatably connected inside the body 1, there is a gap between the cutting edge of the comma knife 17 and the coating roller 15, and one end of the comma knife 17 is connected to a driving motor 171 arranged outside the body 1; a fan-shaped groove 172 is opened at the end of the comma knife 17 far from the driving motor 171, a rotating rod 173 is rotatably connected inside the fan-shaped groove 172, a cleaning blade 174 is arranged at one end of the rotating rod 173 on the surface of the comma knife 17, and the rotating rod 173 is driven by a motor; A backing roller 18, which is arranged inside the body 1, and the horizontal height of the backing roller 18 is higher than that of the pressure roller 14; An optical sensor 19 is provided inside the machine body 1 and is located between the comma knife 17 and the back roller 18; A drying oven 3 is located at the upper end inside the machine body 1, and the drying oven 3 is located between the back roller 18 and the winding roller 12; Two shaft wheels 111 are provided between the back roller 18 and the coating roller 15. A rubber belt 112 is sleeved outside the two shaft wheels 111. One of the shaft wheels 111 is rotated by a micro motor provided. The optical sensor 19 is located between the comma knife 17 and the rubber belt 112, and the surface of the rubber belt 112 is smooth.

[0021] The specific working process is as follows: During the process of coating the silica gel tape, first, the staff installs the silica gel tape. The driving devices 2 on the winding roller 12 and the unwinding roller 11 are connected by a fixing plate, and a telescopic cylinder is provided between the fixing plate and the outside of the machine body 1. When the telescopic cylinder extends, the winding roller 12 and the driving device 2 corresponding to the winding roller 12 are pushed out of the machine body, and the unwinding roller 11 and the driving device 2 corresponding to the unwinding roller 11 are pushed out of the machine body 1; then the silica gel tape roll to be coated is installed on the unwinding roller 11. The unwinding roller 11 is detachably connected to the machine body 1, so that the silica gel tape roll is installed on the unwinding roller 11. Then one end of the silica gel tape is passed over the upper side of the guide roller 13. The guide roller 13 is located below the silica gel tape, so that the guide roller 13 supports the silica gel tape. Then the silica gel tape passes through the gap between the pressure roller 14 and the coating roller 15, and the lower side of the pressure roller 14 squeezes the upper side of the silica gel tape (the pressure roller 14 is driven by a motor provided on one side of the machine body 1). At the same time, the coating roller 15 is located below the silica gel tape, and the coating roller 15 does not contact the lower side of the silica gel sheet. There is a gap between the two, and the size of the gap determines the coating thickness on the silica gel sheet; then after the silica gel sheet passes through the gap between the pressure roller 14 and the coating roller 15, the outer ring of the silica gel sheet is closely attached to the back roller 18. Specifically, the silica gel sheet contacts the side of the back roller 18 away from the unwinding roller 11. Then the silica gel sheet passes through the inside of the drying oven 3 and is wound around the winding roller 12; The staff starts the coating device. The unwinding roller 11 rotates to unwind the silicone sheet roll, and at the same time, the winding roller 12 rotates to wind the silicone sheet. The unwinding roller 11 and the winding roller 12 are rotated by the driving device 2, and the driving device 2 is driven by a motor. During the unwinding of the unwinding roller 11 and the winding of the winding roller 12, the guide roller 13 guides the silicone sheet (the guide roller 13 is driven by a motor arranged outside the machine body 1), and at the same time, the guide roller 13 tensions the silicone sheet between the winding roller 12 and the pressure roller 14. Subsequently, the silicone sheet moves to the position between the pressure roller 14 and the coating roller 15. During this process, the coating roller 15 rotates through the driving device 2. One side of the coating roller 15 is located in the storage tank 16, so that the coating roller 15 combines with the coating in the storage tank 16, and the coating adheres to the surface of the coating roller 15. As the coating roller 15 rotates, the coating on the coating roller 15 contacts the lower side of the silicone sheet under the pressure roller 14, so that the coating roller 15 bonds the coating to the lower surface of the silicone sheet; During the rotation of the coating roller 15, the comma knife 17 is located on one side of the coating roller 15, and there is a gap between the comma knife 17 and the outer side of the coating roller 15. After the coating roller 15 carries the coating out of the storage tank 16, the comma knife 17 scrapes off the excess coating on the outer side of the coating roller 15 to control the thickness of the coating on the surface of the coating roller 15; a fan-shaped groove 172 is opened on the comma knife 17, and a rotating rod 173 is rotatably connected inside the fan-shaped groove 172. A cleaning blade 174 is arranged at the end of the rotating rod 173, and the cutting edge of the cleaning blade 174 coincides with the cutting edge of the comma knife 17; when the cutting edge of the comma knife 17 coincides with the cutting edge of the cleaning blade 174, the gap between the coinciding part of the cutting edge of the comma knife 17 and the cutting edge of the cleaning blade 174 and the coating roller 15 is in the minimum state; when it is necessary to increase the thickness of the coating on the silicone sheet, the staff controls the driving motor 171 at the end of the comma knife 17 without the fan-shaped groove 172 to rotate counterclockwise, so that the driving motor 171 drives the comma knife 17 and the cleaning blade 174 to rotate counterclockwise, so that the distance between the cutting edges of the comma knife 17 and the cleaning blade 174 and the surface of the coating roller 15 increases, thereby increasing the thickness of the coating carried on the surface of the coating roller 15, and increasing the thickness of the coating applied on the surface of the silicone sheet by the coating roller 15; in the initial state, the cutting edge of the cleaning blade 174 does not coincide with the cutting edge of the comma knife 17, so when quantifying the thickness of the coating on the surface of the coating roller 15, first, the excess coating on the coating roller 15 is scraped off by the cutting edge of the comma knife 17; During the process of coating on the surface of the above-mentioned silica gel sheet, by arranging an optical sensor 19 inside the machine body 1, and the optical sensor 19 is located at the position between the back roller 18 and the coating roller 15, and the optical sensor 19 is located on the lower side of the silica gel sheet, when the silica gel sheet coated by the coating roller 15 moves towards the back roller 18, the optical sensor 19 monitors the lower side of the coated silica gel sheet in real time. During the monitoring process, if it is detected that there are strip-shaped defects on the surface of the coated silica gel sheet due to the wear of the comma knife 17, since in the initial state, the cleaning blade 174 does not coincide with the blade edge of the comma knife 17, it can be judged that during the long-term use process, the blade edge of the comma knife 17 is worn. At this time, the staff can control the micro-motor inside the sector groove 172 to rotate clockwise, and the synchronous rotating rod 173 drives the cleaning blade 174 to rotate clockwise until the blade edge of the cleaning blade 174 coincides with the blade edge of the comma knife 17, so that the cleaning blade 174 covers the lower end of the comma knife 17, so that when the blade edge of the subsequent cleaning blade 174 measures the coating thickness on the coating roller 15, there is no need to stop the machine to replace the comma knife 17, and the problem of stripe defects during the coating of the silica gel roll can be solved; During the above process, two shaft wheels 111 are arranged between the back roller 18 and the coating roller 15, and a rubber belt 112 is sleeved on the two shaft wheels 111. The surface of the rubber belt 112 is smooth. The two shaft wheels 111 and the rubber belt 112 are located below the silica gel sheet between the back roller 18 and the coating roller 15, and the gap between the rubber belt 112 and the silica gel sheet is the same as the distance between the coating roller 15 and the comma knife 17; when the silica gel sheet moves towards the back roller 18 (the back roller 18 is driven by a motor arranged on one side of the machine body 1), the surface of the upper rubber belt 112 contacts the coating applied to the lower side of the silica gel sheet, and at the same time the rubber belt 112 is driven by the two end shaft wheels 111 to rotate counterclockwise, so that the surface of the rubber belt 112 smooths the coating applied to the lower side of the silica gel sheet, thereby avoiding damage to the comma knife 17 and resulting in unevenness of the coating layer on the lower side of the silica gel sheet, and due to the fluidity of the coating, after the coating roller 15 applies the coating to the lower side of the silica gel sheet, the coating will flow to a certain extent on the lower side of the silica gel sheet, resulting in unevenness at the lower end of the silica gel sheet after coating; at this time, if the silica gel sheet moves above the rubber belt 112, the rubber belt 112 will smooth the coating at the lower end of the silica gel sheet, thereby avoiding the occurrence of this problem; After the silicone sheet coated with the coating passes through the guiding of the back roller 18, the coated silicone sheet enters the drying oven 3, which is an existing drying device. After the coated silicone sheet moves out of the drying oven 3, the coating on the silicone sheet undergoes crosslinking and curing, and then is pulled by the winding roller 12, so that the coated silicone sheet is wound around the winding roller 12. After the winding is completed, since the winding roller 12 is detachably connected to the machine body 1, the staff can remove the silicone roll wound on the winding roller 12.

[0022] Embodiment 2:

[0023] As Figures 2 to 10 shown; a sliding groove 113 is formed in the inner side wall of the machine body 1, a sliding plate 114 is slidably connected inside the sliding groove 113, two supporting plates 115 are arranged at the lower ends of the sliding plate 114, and an adjusting roller 116 is rotatably connected between the two supporting plates 115. The adjusting roller 116 is located above the rubber belt 112, and there is a gap between the adjusting roller 116 and the rubber belt 112; an adjusting rod 117 is arranged on the output shaft of the driving motor 171, and an arc-shaped plate 118 is arranged at the upper end of the adjusting rod 117, and the arc-shaped plate 118 contacts the lower side of the sliding plate 114.

[0024] The specific working process is as follows: By arranging a sliding groove 113 inside the machine body 1 and slidably connecting a sliding plate 114 inside the sliding groove 113, two supporting plates 115 are arranged at the lower ends of the sliding plate 114, and an adjusting roller 116 is rotatably connected between the supporting plates 115; the adjusting roller 116 is located above the rubber belt 112, and there is a gap between the adjusting roller 116 and the rubber belt 112. When the silicone sheet moves out between the pressure roller 14 and the coating roller 15, the silicone sheet passes through the position between the adjusting roller 116 and the rubber belt 112, and at the same time, the adjusting roller 116 presses the lower side of the silicone sheet. In the initial state, when the sliding plate 114 is located at the lowest end of the sliding groove 113, the adjusting roller 116 is at the lowest initial horizontal height. At this time, the adjusting roller 116 presses the silicone sheet, so that the distance from the pressed part of the silicone sheet to the rubber belt 112 is the minimum distance between the comma knife 17 and the coating roller 15. When the staff needs to increase the coating thickness of the silicone sheet for different requirements, at this time, the staff controls the driving motor 171 on one side of the comma knife 17 to rotate. The output shaft of the driving motor 171 drives the comma knife 17 to rotate counterclockwise. When the comma knife 17 rotates counterclockwise, it drives the rotating rod 173 and the cleaning blade 174 to rotate counterclockwise at the same time. At this time, the gap between the cutting edge of the comma knife 17 and the coating roller 15 becomes larger, so that the thickness of the coating on the coating roller 15 passing through the comma knife 17 increases. When the drive motor 171 on one side of the comma knife 17 rotates, the adjusting rod 117 arranged on the output shaft of the drive motor 171 rotates counterclockwise synchronously. The arc-shaped plate 118 at the upper end of the adjusting rod 117 rotates, and the arc-shaped plate 118 pushes against the lower side of the sliding plate 114, causing the sliding plate 114 to slide upward inside the sliding groove 113. During this process, the sliding plate 114 drives the adjusting roller 116 to move upward. During the upward movement of the adjusting roller 116, the silica gel sheet located below the adjusting roller 116 moves upward synchronously, making the gap between the silica gel sheet and the rubber belt 112 larger. Furthermore, after the gap between the comma knife 17 and the coating roller 15 becomes larger, the gap between the lower side of the silica gel sheet and the rubber belt 112 becomes larger synchronously, enabling the rubber belt 112 to smooth coatings of different thicknesses, thereby improving the coating effect on the silica gel sheet.

[0025] Embodiment Three:

[0026] As Figures 1 to 10 shown; an installation plate 4 is arranged inside the machine body 1. An installation groove 41 is opened at the upper end of the installation plate 4. A cleaning knife 42 is arranged on the lower inner wall of the installation groove 41. The upper end of the cleaning knife 42 contacts the lower end of the lower part of the rubber belt 112; A roller 43 is rotatably connected inside the installation groove 41. The roller 43 is located between the rubber belts 112. The lower rubber belt 112 is located between the roller 43 and the cleaning knife 42; The roller 43 specifically has a heat conducting wire, and the heat conducting wire is electrically heated.

[0027] The specific working process is as follows: An installation plate 4 is arranged inside the machine body 1. An installation groove 41 is opened at the upper end of the installation plate 4, and a cleaning knife 42 is arranged on the lower inner wall of the installation groove 41, so that the upper end of the cleaning knife 42 contacts the lower end of the lower part of the rubber belt 112; On the basis of the above embodiment, when the rubber belt 112 rotates, the surface of the upper part of the rubber belt 112 will smooth the coating on the lower side of the silica gel belt above it. Subsequently, the part of the rubber belt 112 that smooths the lower side of the silica gel will move to the upper end of the cleaning knife 42. During this process, the surface of the rubber belt 112 contacts the upper end of the cleaning knife 42, and the cleaning knife 42 scrapes off the coating adhered to the surface of the rubber belt 112, thereby avoiding the problem that the coating adheres to the surface of the rubber belt 112, resulting in the coating on the lower side of the silica gel sheet being affected by the coating adhered to the surface of the rubber belt 112 when smoothing the surface of the silica gel belt, causing strip-shaped defects on the lower side of the silica gel sheet; And by rotatably connecting a roller 43 inside the installation groove 41, the roller 43 is located inside the rubber belt 112. When the rubber belt 112 rotates, the rubber belt 112 moves between the roller 43 and the cleaning blade 42. During this process, the roller 43 limits the position of the rubber belt 112, preventing the surface of the rubber belt 112 from being in poor contact with the cleaning blade 42 during the movement of the rubber belt 112, and avoiding the problem that the paint adhered to the surface of the rubber belt 112 cannot be cleaned thoroughly. At the same time, a heat-conducting wire is arranged inside the roller 43. When the roller 43 guides and contacts the inner side of the rubber belt 112, the heat-conducting wire transfers the temperature to the outer side of the roller 43, and then the roller 43 transfers the temperature to the surface of the rubber belt 112, increasing the temperature of the surface of the rubber belt 112. As a result, the temperature of the paint adhered to the surface of the rubber belt 112 increases, leading to a decrease in the viscosity of the paint adhered to the surface of the rubber belt 112, making it easier to be scraped off by the cleaning blade 42, thereby improving the cleaning effect of the surface of the rubber belt 112 and further improving the smoothing effect of the rubber belt 112 on the paint layer on the lower side of the silicone sheet.

[0028] Embodiment 4:

[0029] As Figures 2 to 10 shown; the mounting plate 4 is slidably connected up and down inside the machine body 1, and a tension spring is arranged between the mounting plate 4 and the machine body 1. In the initial state, the tension spring is in a stretched state; The lower inner wall of the installation groove 41 is inclined, and a heating plate 44 is arranged on the lower inner wall of the installation groove 41, and the cleaning blade 42 is arranged on the heating plate 44.

[0030] The specific working process is as follows: The mounting plate 4 is slidably connected up and down inside the machine body 1, and a tension spring is provided between the mounting plate 4 and the machine body 1. In the initial state, the tension spring is in a stretched state; on the basis of the above-mentioned Embodiment 1, the rubber belt 112 is located inside the mounting groove 41, and the inner side of the rubber belt 112 contacts the roller 43 inside the mounting groove 41. At the same time, the tension spring on the lower side of the mounting plate 4 pulls the mounting plate 4 downward, and the mounting plate 4 pulls the roller 43 downward. During the process of the roller 43 being pulled downward, the roller 43 squeezes the inner side of the rubber belt 112, causing the position where the rubber belt 112 is squeezed to be pulled downward, thereby realizing that the rubber belt 112 is always in a tensioned state, and further improving the smoothing effect of the rubber belt 112 on the paint on the lower side of the silica gel sheet; and by making the lower inner wall of the mounting groove 41 inclined, specifically inclined towards the inside of the storage tank 16, and a heating plate 44 is provided on the lower inner wall of the mounting groove 41. When the cleaning knife 42 scrapes off the paint on the surface of the rubber belt 112, the paint can slide down along the inclined surface into the storage tank 16, and by arranging the heating plate 44 on the inclined surface, the dropped paint is heated to reduce the viscosity of the paint, making it more smooth to fall back into the storage tank 16, thereby improving the recycling efficiency of the paint.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A coating device for producing polyester film silicone tape. The coating device includes a roll coater, and the roll coater includes a machine body (1) and a driving device (2) on the machine body (1). It is characterized in that, The machine body (1) includes: An unwinding roller (11) which is detachably connected to one end of the machine body (1) and is connected to the driving device (2) on the machine body (1); A winding roller (12) which is detachably connected to the machine body (1) at the same end as the unwinding roller (11), and the winding roller (12) is located above the unwinding roller (11), and the winding roller (12) is connected to the driving device (2); A guide roller (13) which is rotatably connected to the machine body (1), and the horizontal height of the guide roller (13) is higher than that of the unwinding roller (11); A pressure roller (14) which is rotatably connected to the machine body (1), and the horizontal height of the pressure roller (14) is lower than that of the guide roller (13); A coating roller (15) which is rotatably connected to the machine body (1), the coating roller (15) is located directly below the pressure roller (14), and there is a gap between the coating roller (15) and the pressure roller (14); A storage tank (16) which is arranged inside the machine body (1), and the lower side of the coating roller (15) is located inside the storage tank (16); A comma knife (17) which is rotatably connected inside the machine body (1), there is a gap between the cutting edge of the comma knife (17) and the coating roller (15), and one end of the comma knife (17) is connected to a driving motor (171) arranged outside the machine body (1); a fan-shaped groove (172) is opened at the end of the comma knife (17) far from the driving motor (171), a rotating rod (173) is rotatably connected inside the fan-shaped groove (172), a cleaning blade (174) is arranged at the end of the rotating rod (173) located on the surface of the comma knife (17), and the rotating rod (173) is driven by a motor; A back roller (18) which is arranged inside the machine body (1), and the horizontal height of the back roller (18) is higher than that of the pressure roller (14); An optical sensor (19) which is arranged inside the machine body (1) and is located between the comma knife (17) and the back roller (18); A drying oven (3) which is located at the upper end inside the machine body (1), and the drying oven (3) is located between the back roller (18) and the winding roller (12).

2. The coating equipment for producing polyester film silicone tape according to claim 1, wherein: Two shaft wheels (111) are arranged between the back roller (18) and the coating roller (15), the shaft wheels (111) are arranged on the inner side of the machine body (1), a rubber belt (112) is sleeved outside the two shaft wheels (111), one of the shaft wheels (111) rotates through a set micro motor, the optical sensor (19) is located between the comma knife (17) and the rubber belt (112), and the surface of the rubber belt (112) is smooth.

3. The coating equipment for producing a polyester film silicone tape according to claim 1, characterized in that: A sliding groove (113) is opened on the inner side wall of the machine body (1), a sliding plate (114) is slidably connected inside the sliding groove (113), two supporting plates (115) are arranged at the lower ends of the sliding plate (114), an adjusting roller (116) is rotatably connected between the two supporting plates (115), the adjusting roller (116) is located above the rubber belt (112), and there is a gap between the adjusting roller (116) and the rubber belt (112); an adjusting rod (117) is arranged on the output shaft of the driving motor (171), an arc-shaped plate (118) is arranged at the upper end of the adjusting rod (117), and the arc-shaped plate (118) contacts the lower side of the sliding plate (114).

4. The coating equipment for producing polyester film silicone tape according to claim 2, wherein: Inside the body (1), there is a mounting plate (4). At the upper end of the mounting plate (4), there is a mounting groove (41). On the lower inner wall of the mounting groove (41), there is a cleaning knife (42), and the upper end of the cleaning knife (42) contacts the lower end of the lower part of the rubber belt (112).

5. The coating equipment for producing polyester film silicone tape according to claim 4, characterized in that: Inside the mounting groove (41), there is a roller (43) rotatably connected. The roller (43) is located between the rubber belts (112), and at the same time, the lower rubber belt (112) is located between the roller (43) and the cleaning knife (42).

6. The coating equipment for producing polyester film silicone tape according to claim 5, characterized in that: Inside the roller (43), there is a specific heat-conducting wire, and the heat-conducting wire is heated by electricity.

7. The coating equipment for producing polyester film silicone tape according to claim 4, characterized in that: The mounting plate (4) is slidably connected up and down inside the body (1). Between the mounting plate (4) and the body (1), there is a tension spring. In the initial state, the tension spring is in a stretched state.

8. The coating equipment for producing polyester film silicone tape according to claim 5, characterized in that: The lower inner wall of the mounting groove (41) is inclined, and on the lower inner wall of the mounting groove (41), there is a heating plate (44), and the cleaning knife (42) is arranged on the heating plate (44).

Images