Coating device for thin film production

Abstract

The invention relates to the technical field of film coating, and particularly discloses a coating device for film production, which comprises a base, a support frame is arranged on the top surface of the base; an unwinding roller and a winding roller are rotationally arranged on the inner wall of the supporting frame; a gluing box is mounted on the base; a glue groove is formed in the inner wall of the bottom end of the gluing box, and a driving motor is mounted on the outer wall of the gluing box; the output end of the driving motor is coaxially and fixedly connected with a glue spreading roller positioned in the glue material groove; a feeding opening is formed in the side wall of the gluing box, and an adjusting roller located at the top of the gluing roller is rotationally connected to the inner wall of the gluing box; the adjusting roller and the gluing roller are matched to form a gap channel through which a base film can pass; an ultraviolet irradiation box is arranged on the top surface of the gluing box; a discharge hole is formed in the side wall of the ultraviolet irradiation box; a glue scraping mechanism is arranged in the glue groove; in the roller coating process of the glue coating roller, the glue scraping mechanism can scrape glue on the glue coating roller, so that the glue on the glue coating roller is smooth and uniform, and a base film can be uniformly coated.

Description

Technical Field

[0001] The present invention relates to the technical field of thin film coating, and particularly relates to a coating device for thin film production. Background Art

[0002] As a high-performance material, thin films are widely used in fields such as packaging, electronics, and medical treatment. Their performance depends to a large extent on the quality of the coating process. As a type of thin film, the UV curable film generally includes a base film and a UV glue layer. The common base film is a PET film, and the UV glue layer is a photocuring layer. During the coating process, the UV glue is placed in a glue tank, and the coating roller is immersed in the glue tank to soak up the glue and coat the UV glue on the base film. Then, a photosensitive device is used to process the UV glue to cure it to form a UV glue layer and finally form a UV curable film.

[0003] In the prior art, when using a coating roller to roll coat a base film, the thickness of the UV glue dipped on the coating roller is uneven, and the UV glue coated on the base film after coating is unevenly distributed, which affects the coating quality of the base film, and further causes the production quality of the thin film to fail to reach the expected effect. Summary of the Invention

[0004] The present application provides a coating device for thin film production, which can make the glue material on the coating roller flat and uniform, so as to achieve uniform coating and ensure the coating quality of the base film.

[0005] A coating device for thin film production provided by the present application adopts the following technical solutions: A coating device for thin film production includes a base; a support frame is arranged on the top surface of the base; a unwind roller and a wind-up roller located above the unwind roller are rotatably arranged on the inner wall of the support frame; a coating box is installed on the base on one side of the support frame; a glue material tank is arranged on the inner wall of the bottom end of the coating box, and a driving motor is installed on the outer wall of the coating box; the output end of the driving motor is coaxially fixed with a coating roller located in the glue material tank; the coating box is provided with a feeding port on the side wall close to the support frame, and an adjusting roller located above the coating roller and a plurality of guiding rollers located on the side of the adjusting roller close to the feeding port are rotatably connected on the inner wall of the coating box; the adjusting roller and the coating roller cooperate to form a gap channel through which the base film can pass; an ultraviolet irradiation box is arranged on the top surface of the coating box; the ultraviolet irradiation box is provided with a discharge port on the side wall close to the support frame; a scraping mechanism for scraping the glue material on the coating roller flat is arranged in the glue material tank.

[0006] By adopting the above technical solution, the base film on the unwinding roller is fed into the gluing box through the feeding port. The base film bypasses multiple guiding rollers and passes through the clearance channel between the adjusting roller and the gluing roller, and then the base film is fed into the ultraviolet irradiation box and sent out from the discharging port and wound and fixed on the winding roller. When gluing the base film, the base film is conveyed through the cooperation of the unwinding roller and the winding roller. During the conveying process of the base film, the driving motor is started to drive the gluing roller to rotate, so that the gluing roller dips the UV glue in the glue tank and coats the UV glue on the base film. During the roller coating process of the gluing roller, the glue scraping mechanism can scrape the glue on the gluing roller, so that the glue on the gluing roller is flat and uniform, so as to achieve uniform coating on the base film and ensure the coating quality of the UV glue.

[0007] Preferably, the glue scraping mechanism includes an electric push rod; the electric push rod is installed on the side wall of the glue tank, the electric push rod is arranged radially towards the gluing roller along the gluing roller, and a scraper is fixedly connected to the output end of the electric push rod.

[0008] By adopting the above technical solution, starting the electric push rod can drive the scraper to move to adjust the clearance distance between the scraper and the gluing roller. When the gluing roller dips the glue for coating, the glue will be scraped by the scraper when passing through the clearance between the scraper and the gluing roller, removing the excessive glue on the gluing roller, so that the glue is flat and uniform. By controlling the clearance distance between the scraper and the gluing roller, the coating thickness can be controlled, and thus the coating quality can be ensured.

[0009] Preferably, a support plate located at the top of the scraper is fixedly connected to the inner wall of the gluing box; a first magnetic block is connected to the top surface of the support plate through a spring; a sliding plate penetrating the support plate is fixedly connected to the bottom surface of the first magnetic block; the sliding plate is slidably matched with the support plate, and an impact block is fixedly connected to the bottom end of the sliding plate; a first rotating shaft located at the top of the first magnetic block is rotatably connected to the inner wall of the gluing box; a second magnetic block located at the top of the first magnetic block is fixedly connected to the outer wall of the first rotating shaft through a connecting plate; the top surface of the first magnetic block and the end surface of the second magnetic block away from the connecting plate have the same magnetic property; a first transmission component capable of driving the first rotating shaft to rotate is arranged at the end of the gluing roller.

[0010] By adopting the above technical solution, when the gluing roller rotates, it will drive the first rotating shaft to rotate through the first transmission component. When the first rotating shaft drives the second magnetic block to rotate to a position close to the first magnetic block, the second magnetic block will push the first magnetic block to move downwards to compress the spring and push the impact block to move downwards to impact the scraper through the sliding plate, causing the scraper to vibrate, so that the glue scraped by the scraper falls into the glue tank, so as to realize the recovery of the glue and improve the utilization rate of the glue. When the first rotating shaft drives the second magnetic block to gradually move away from the first magnetic block, the first magnetic block drives the impact block to move upwards and reset under the action of the spring elastic force, so as to realize that the impact block can impact the scraper reciprocally during the rotation of the first rotating shaft.

[0011] Preferably, the first rotating shaft is coaxial with the glue - applying roller; the first transmission assembly includes a first pulley, a second pulley and a first belt; the first pulley is coaxially fixed on the outer wall of the end of the glue - applying roller; the second pulley is coaxially fixed on the outer wall of the end of the first rotating shaft; the first belt is sleeved outside the first pulley and the second pulley.

[0012] By adopting the above - mentioned technical solution, under the cooperative work of the first pulley, the second pulley and the first belt, the glue - applying roller will drive the first rotating shaft to rotate during the rotation process, so as to realize the transfer of kinetic energy during the rotation of the glue - applying roller.

[0013] Preferably, a pressure roller and a brush roller located at the bottom of the pressure roller are rotatably connected to the inner wall of the feeding port; bristles that can contact the base film bypassing the pressure roller are arranged on the outer peripheral surface of the brush roller.

[0014] By adopting the above - mentioned technical solution, when the base film enters the glue - applying box from the feeding port, the pressure roller limits and guides the base film, and the bristles on the brush roller will contact the surface of the base film to be coated. During the conveying process of the base film, the bristles on the outer peripheral surface of the brush roller will clean the base film to remove dust and impurities on the surface of the base film to be coated, ensuring the glue - applying quality of the base film.

[0015] Preferably, a ventilation pipe coaxial with the glue - applying roller is fixed on the inner wall of the glue - applying box; the end of the ventilation pipe far from the driving motor extends to the outer wall of the glue - applying box and is in an open - mouth shape. A plurality of air - jet nozzles pointing to the pressure roller are arranged on the outer wall of the ventilation pipe. A rotating shaft is coaxially and rotatably connected to the inner wall of the ventilation pipe near the open - mouth end; fan blades are arranged on the outer wall of the rotating shaft; a second transmission assembly capable of driving the rotating shaft to rotate is arranged on the outer wall of the end of the glue - applying roller.

[0016] By adopting the above - mentioned technical solution, during the rotation of the glue - applying roller, the rotating shaft will be driven to rotate through the second transmission assembly, causing the fan blades to rotate and blow air into the ventilation pipe. The air blown into the ventilation pipe is then ejected through the air - jet nozzles to blow the coated surface of the base film and the bristles bypassing the pressure roller, further improving the cleaning effect on the coated surface of the base film.

[0017] Preferably, the second transmission assembly includes a second rotating shaft and a gearbox; the second rotating shaft is rotatably connected to the outer wall of the glue - applying box on the side where the open - mouth end of the ventilation pipe is located, and the second rotating shaft is coaxial with the glue - applying roller; a third pulley is coaxially fixed on the outer wall of the end of the glue - applying roller; a fourth pulley is coaxially fixed on the outer wall of the second rotating shaft; a second belt is sleeved outside the third pulley and the fourth pulley; the gearbox is installed on the outer wall of the glue - applying box on the side where the second rotating shaft is located, and the low - speed input end of the gearbox is in transmission cooperation connection with the second rotating shaft through a first bevel - gear set, and the high - speed output end of the gearbox is in transmission cooperation connection with the rotating shaft through a second bevel - gear set.

[0018] By adopting the above technical solution, under the cooperative operation of the third pulley, the fourth pulley and the second belt, the glue applicator roller will drive the second rotating shaft to rotate during the rotation process, and the second rotating shaft will drive the rotating shaft to rotate through the gearbox, realizing the transmission of kinetic energy during the rotation process of the glue applicator roller. Moreover, the gearbox can convert the low-speed rotation at the input end into the high-speed rotation at the output end, enabling the rotating shaft and the fan blade to have a relatively high rotational speed, so as to ensure the cleaning effect of the air jet nozzle.

[0019] Preferably, a filter screen is installed on the inner wall of the open end of the ventilation pipe; the rotating shaft is rotationally matched with the filter screen.

[0020] By adopting the above technical solution, the filter screen is provided to filter and block dust and impurities in the external environment, reducing the possibility of dust and impurities entering the ventilation pipe and the possibility of the air jet nozzle being blocked.

[0021] Preferably, a pair of support rollers are rotatably connected to the inner wall of the ultraviolet irradiation box; a first through port is opened on the top surface of the glue application box; a second through port corresponding to the first through port is opened on the bottom wall of the ultraviolet irradiation box, and an ultraviolet lamp group is arranged at a position between the two support rollers on the top wall of the ultraviolet irradiation box.

[0022] By adopting the above technical solution, the base film in the glue application box will enter the ultraviolet irradiation box through the first through port and the second through port. When the glue-coated base film is conveyed in the ultraviolet box, the ultraviolet lamp group will irradiate the glue-coated surface of the base film, promoting the curing of the UV glue coated on the base film, so as to carry out the subsequent winding and finishing work on the base film.

[0023] Preferably, a vibration motor is installed on the outer wall of the glue material tank.

[0024] By adopting the above technical solution, the vibration motor arranged on the outer wall of the glue material tank can vibrate the UV glue in the glue material tank, promoting the bubbles in the UV glue to burst and escape, reducing the influence of the bubbles on the coating uniformity, and improving the glue coating quality of the base film.

[0025] In summary, the present application has the following beneficial effects: 1. The base film is conveyed through the cooperative operation of the unwinding roller and the winding roller. During the conveying process of the base film, the driving motor is started to drive the glue applicator roller to rotate, prompting the glue applicator roller to dip the UV glue in the glue material tank and coat the UV glue on the base film. During the roller coating process of the glue applicator roller, the scraping mechanism can scrape the glue on the glue applicator roller, making the glue on the glue applicator roller flat and uniform, so as to achieve uniform coating on the base film and ensure the coating quality of the UV glue. 2. The glue - applying roller drives the first rotating shaft to rotate through the first transmission component. When the second magnetic block rotates to approach the first magnetic block, the second magnetic block compresses the spring and drives the sliding plate to push the impact block downward to strike the scraper. When the second magnetic block gradually moves away from the first magnetic block, the first magnetic block drives the impact block to move upward and reset under the action of the spring elasticity, so as to realize the reciprocating impact of the impact block on the scraper during the rotation of the first rotating shaft, prompting the scraper to vibrate and shake off the glue material, and realizing the recovery of the glue material. 3. During the process of rotating and applying glue, the glue - applying roller drives the rotating shaft to rotate through the second transmission component, prompting the fan blades to rotate and blow air into the ventilation pipe. Then the air jet nozzle sprays the gas on the base film and the bristles, performing spray cleaning on the glue - applying surface of the base film and the bristles, thereby reducing the possibility that dust and impurities adhere to the base film and affecting the glue - applying quality, and ensuring the glue - applying quality. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of a coating device for film production; Figure 2 is a schematic internal structure diagram of the glue - applying box and the ultraviolet irradiation box in this application; Figure 3 is a schematic cooperation structural diagram of the glue material tank, the glue - applying roller and the glue scraping mechanism in this application; Figure 4 is a schematic cooperation structural diagram of the glue - applying roller, the first transmission component and the first rotating shaft in this application; Figure 5 is a schematic cooperation structural diagram of the ventilation pipe, the rotating shaft and the fan blades in this application; Figure 6 is a schematic cooperation structural diagram of the glue - applying roller, the second transmission component and the rotating shaft in this application.

[0027] Description of the Reference Numerals: 1. Base; 2. Support Frame; 21. Unwinding Roller; 22. Rewinding Roller; 3. Glue - Applying Box; 31. Inlet; 311. Pressing Roller; 312. Brush Roller; 32. Adjusting Roller; 33. Guide Roller; 34. Support Plate; 341. Spring; 342. First Magnetic Block; 343. Sliding Plate; 344. Impact Block; 35. First Rotating Shaft; 351. Connecting Plate; 352. Second Magnetic Block; 4. Glue Material Tank; 41. Driving Motor; 42. Glue - Applying Roller; 43. First Transmission Component; 431. First Belt Pulley; 432. Second Belt Pulley; 433. First Belt; 44. Second Transmission Component; 441. Second Rotating Shaft; 442. Gear Box; 443. Third Belt Pulley; 444. Fourth Belt Pulley; 445. Second Belt; 446. First Bevel Gear Set; 447. Second Bevel Gear Set; 45. Vibration Motor; 5. Ultraviolet Irradiation Box; 51. Outlet; 52. Support Roller; 53. Ultraviolet Lamp Group; 6. Glue Scraping Mechanism; 61. Electric Push Rod; 62. Scraper; 7. Ventilation Pipe; 71. Air Jet Nozzle; 72. Rotating Shaft; 73. Fan Blades; 74. Filter Screen. Detailed Embodiment

[0028] The present invention will be further described in detail below with reference to the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom surface" and "top surface" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component, respectively.

[0029] The present invention discloses a coating device for film production, as Figure 1 , Figure 2 and Figure 3 shown, which includes a base 1, a support frame 2, a glue coating box 3 and an ultraviolet irradiation box 5. The support frame 2 is installed on the top surface of the base 1. A unwind roller 21 and a winding roller 22 located above the unwind roller 21 are horizontally rotatably provided on the inner wall of the support frame 2. The glue coating box 3 is fixedly connected to the top surface of the base 1 on one side of the support frame 2. The glue coating box 3 is provided with a feeding port 31 on the side wall close to the support frame 2. A glue material tank 4 for containing UV glue is fixedly connected to the bottom inner wall of the glue coating box 3. A driving motor 41 is horizontally installed on the outer wall of the glue coating box 3. The output end of the driving motor 41 is coaxially fixedly connected with a glue coating roller 42 located in the glue material tank 4. The glue coating roller 42 is rotationally matched with the inner wall of the glue material tank 4. An adjusting roller 32 located above the glue coating roller 42 and coaxial with the glue coating roller 42 is rotatably connected to the inner wall of the glue coating box 3. The adjusting roller 32 and the glue coating roller 42 cooperate to form a gap channel for the base film to pass through. The ultraviolet irradiation box 5 is installed on the top surface of the glue coating box 3. The ultraviolet irradiation box 5 is communicated with the glue coating box 3 for the base film to enter. The ultraviolet irradiation box 5 is provided with a discharge port 51 on the side wall close to the support frame 2.

[0030] Feed the base film on the unwind roller 21 into the glue coating box 3 through the feeding port 31. The base film passes through the gap channel between the adjusting roller 32 and the glue coating roller 42 and then enters the ultraviolet irradiation box 5, and the base film is sent out from the discharge port 51 and wound and fixed on the winding roller 22. When performing the glue coating work on the base film, the base film is conveyed through the cooperation of the unwind roller 21 and the winding roller 22. During the conveyance of the base film, start the driving motor 41 to drive the glue coating roller 42 to rotate, so that the glue coating roller 42 dips the UV glue in the glue material tank 4 and coats the UV glue on the base film. When the glue-coated base film enters the ultraviolet irradiation box 5, the glue on its surface will be cured, so as to complete the coating of the UV glue for winding and finishing.

[0031] As Figure 1 and Figure 2As shown, a plurality of guide rollers 33 are horizontally and rotatably connected to the inner wall of the glue application box 3, and are located on the side of the adjusting roller 32 close to the feeding port 31. The plurality of guide rollers 33 are coaxial with the glue application roller 42. A first through hole is provided on the top surface of the glue application box 3, and a second through hole corresponding to and cooperating with the first through hole is provided on the bottom wall of the ultraviolet irradiation box 5. A pair of support rollers 52 are horizontally and rotatably connected to the inner wall of the ultraviolet irradiation box 5, and both support rollers 52 are coaxial with the glue application roller 42. A group of ultraviolet lamps 53 are evenly spaced on the top wall of the ultraviolet irradiation box 5 between the two support rollers 52.

[0032] The arranged guide rollers 33 and support rollers 52 are used to guide and support the conveyed base film, and the setting of the group of ultraviolet lamps 53 is used to irradiate the glue-coated surface of the base film, so as to promote the curing of the UV glue and facilitate the winding and finishing of the base film.

[0033] As Figure 2 and Figure 3

[0034] When the electric push rod 61 is started to drive the scraper 62 to move to adjust the gap distance between the scraper 62 and the glue application roller 42, when the glue application roller 42 dips in the glue for coating, the glue will be scraped by the scraper 62 when passing through the gap between the scraper 62 and the glue application roller 42, removing the excessive glue on the glue application roller 42 and promoting the flatness and uniformity of the glue. By controlling the gap distance between the scraper 62 and the glue application roller 42, the coating thickness can be controlled to ensure the coating quality.

[0035] As Figure 1 、 Figure 2 and Figure 4 ​As shown, a support plate 34 located at the top of the scraper 62 is fixedly connected horizontally to the inner wall of the glue coating box 3. The top surface of the support plate 34 is horizontally connected to a first magnetic block 342 through two vertical springs 341. The bottom surface of the first magnetic block 342 is fixedly connected to a slide plate 343 that vertically penetrates the support plate 34. The slide plate 343 slides with the support plate 34. The bottom surface of the slide plate 343 is fixedly connected to a collision block 344 located at the top of the scraper 62. The inner wall of the glue coating box 3 is horizontally connected to the top of the first magnetic block 342. The first rotating shaft 35 is coaxial with the glue coating roller 42. The outer wall of the first rotating shaft 35 is fixedly connected to the second magnetic block 352 located on the top of the first magnetic block 342 through the connecting plate 351. The top surface of the first magnetic block 342 and the end surface of the second magnetic block 352 away from the connecting plate 351 have the same magnetic properties. The end of the glue coating roller 42 away from the driving motor 41 is provided with a first transmission assembly 43 located outside the glue coating box 3. The first transmission assembly 43 can enable the glue coating roller 42 to drive the first rotating shaft 35 to rotate.

[0036] During the gluing process, the gluing roller 42 will drive the first rotating shaft 35 to rotate through the first transmission assembly 43. When the first rotating shaft 35 drives the second magnetic block 352 to rotate close to the first magnetic block 342, the second magnetic block 352 will compress the spring 341 and cause the slide plate 343 to push the impact block 344 to move down and impact the scraper 62. When the first rotating shaft 35 drives the second magnetic block 352 to gradually move away from the first magnetic block 342, the first magnetic block 342 drives the impact block 344 to move up and reset under the elastic force of the spring 341, so that the impact block 344 can reciprocate and impact the scraper 62 during the rotation of the first rotating shaft 35, causing the scraper 62 to vibrate and shake off the rubber material, thereby realizing the recovery of the rubber material.

[0037] like Figure 1 and Figure 4 As shown, the first transmission assembly 43 includes a first pulley 431, a second pulley 432 and a first belt 433. The first pulley 431 is coaxially fixed to the outer wall of the end of the glue coating roller 42 away from the drive motor 41, and the second pulley 432 is coaxially fixed to the outer wall of the end of the first rotating shaft 35 away from the drive motor 41. The first belt 433 is tensioned and sleeved on the outside of the first pulley 431 and the second pulley 432. The first belt 433 links the first pulley 431 and the second pulley 432.

[0038] With the cooperation of the first pulley 431, the second pulley 432 and the first belt 433, the glue coating roller 42 will drive the first rotating shaft 35 to rotate during the rotation process, thereby realizing the transmission of kinetic energy during the rotation of the glue coating roller 42 and reducing the use of drive units.

[0039] like Figure 2 As shown, a pair of vibration motors 45 are installed on the outer wall of the glue tank 4.

[0040] Starting the vibration motor 45 can cause the UV glue in the glue tank 4 to vibrate, prompting the bubbles in the UV glue to burst, thereby reducing the influence of bubbles on the coating uniformity and improving the quality of the glue coating on the base film.

[0041] As Figure 1 and Figure 2 shown, a pressure roller 311 and a brush roller 312 located above the pressure roller 311 are horizontally rotatably connected to the inner wall of the feeding port 31. The pressure roller 311 and the brush roller 312 are coaxial with the coating roller 42. Brush bristles are provided on the outer peripheral surface of the brush roller 312, and the brush bristles can contact the base film bypassing the bottom of the pressure roller 311.

[0042] The pressure roller 311 is used to limit and guide the base film passing through the feeding port 31. During the conveyance of the base film, the brush bristles on the brush roller 312 will contact the base film to remove dust and impurities on the surface of the base film to be coated with glue, reducing the influence of dust and impurities on the coating quality.

[0043] As Figure 1 、 Figure 2 and Figure 6 shown, a ventilation pipe 7 coaxial with the coating roller 42 is horizontally rotatably connected to the inner wall of the coating box 3. The end of the ventilation pipe 7 far from the drive motor 41 extends to the outer wall of the coating box 3 and is in an open shape. The ventilation pipe 7 is in communication with the external environment. A plurality of air jet nozzles 71 are provided on the side wall of the ventilation pipe 7. The plurality of air jet nozzles 71 are evenly spaced along the axial direction of the ventilation pipe 7 and are arranged obliquely downward and pointing at the pressure roller 311 and the brush roller 312. A rotating shaft 72 is coaxially rotatably connected to the inner wall of the ventilation pipe 7 near the open end. A fan blade 73 is provided on the outer wall of the rotating shaft 72. A filter screen 74 is installed on the inner wall of the ventilation pipe 7 at the open end. The end of the rotating shaft 72 penetrates through the filter screen 74 and extends to the outside of the ventilation pipe 7. The rotating shaft 72 is in rotational cooperation with the filter screen 74. A second transmission assembly 44 is provided on the outer wall of the coating box 3 near the open end of the ventilation pipe 7. The second transmission assembly 44 can cause the coating roller 42 to drive the rotating shaft 72 to rotate.

[0044] Under the action of the second transmission assembly 44, the coating roller 42 will drive the rotating shaft 72 to rotate during rotation, prompting the fan blade 73 to rotate and blow air into the ventilation pipe 7. The air blown into the ventilation pipe 7 is then ejected through the air jet nozzles 71 to blow the base film bypassing the pressure roller 311 and the brush bristles, removing the dust and impurities adhering to the coating surface of the base film and the brush bristles, improving the cleaning effect on the coating surface of the base film. The setting of the filter screen 74 is used to filter and block dust and impurities, ensuring the cleanliness of the air flow ejected by the air jet nozzles 71.

[0045] As Figure 1 、 Figure 2 and Figure 6As shown in the figure, the second transmission assembly 44 includes a second rotating shaft 441, a gearbox 442, a third pulley 443, a fourth pulley 444, and a second belt 445. The second rotating shaft 441 is horizontally rotatably connected to the outer wall of the glue application box 3 on the side where the open end of the ventilation pipe 7 is located. The second rotating shaft 441 is coaxial with the glue application roller 42. The third pulley 443 is coaxially fixed to the outer wall of the end of the glue application roller 42. The fourth pulley 444 is coaxially fixed to the outer wall of the end of the second rotating shaft 441. The second belt 445 is tensioned and sleeved on the outer walls of the third pulley 443 and the fourth pulley 444. The gearbox 442 is installed on the outer wall of the glue application box 3 on the side where the second rotating shaft 441 is located. The low-speed input end of the gearbox 442 is in transmission cooperation connection with the second rotating shaft 441 through a first bevel gear set 446. The high-speed output end of the gearbox 442 is in transmission cooperation connection with the rotating shaft 72 through a second bevel gear set 447.

[0046] Under the cooperative operation of the third pulley 443, the fourth pulley 444, and the second belt 445, the glue application roller 42 will drive the second rotating shaft 441 to rotate during the rotation process. The second rotating shaft 441 will then drive the rotating shaft 72 to rotate through the gearbox 442, realizing the transmission of kinetic energy during the rotation process of the glue application roller 42, so as to promote the rotation and blowing of the fan blade 73.

[0047] Working principle: Feed the base film into the glue application box 3 through the gap between the pressure roller 311 and the brush roller 312. The base film passes through the gap channel between the adjustment roller 32 and the glue application roller 42 after bypassing multiple guide rollers 33, and then passes through the first through-hole and the second through-hole and is sent into the ultraviolet irradiation box 5. The base film bypasses the support roller 52 in the ultraviolet irradiation box 5 and is output from the discharge port 51 and wound and fixed on the winding roller 22. The base film can be conveyed through the cooperative operation of the unwinding roller 21 and the winding roller 22. When applying glue to the conveyed base film, start the drive motor 41 to drive the glue application roller 42 to rotate, so that the glue application roller 42 dips into the UV glue in the glue tank 4 and coats the UV glue on the base film. The scraper 62 on one side of the glue application roller 42 can scrape the glue on the outer peripheral surface of the glue application roller 42 during the roller coating process of the glue application roller 42, removing excessive glue on the glue application roller 42, making the glue flat and ensuring the coating quality. When the glue-coated base film enters the ultraviolet irradiation box 5, the ultraviolet lamp group 53 can irradiate the glue-coated surface of the base film to promote the curing of the UV glue, so as to wind and sort the base film output from the ultraviolet irradiation box 5; During the glue application process with the glue application roller 42 rotating, the first transmission component 43 will drive the first rotating shaft 35 to rotate. When the first rotating shaft 35 drives the second magnetic block 352 to rotate and approach the first magnetic block 342, the second magnetic block 352 will compress the spring 341 and drive the slide plate 343 to push the impact block 344 downward to impact the scraper 62, prompting the scraper 62 to vibrate and shake off the glue material, so as to realize the recovery of the glue material. When the first rotating shaft 35 drives the second magnetic block 352 to gradually move away from the first magnetic block 342, the first magnetic block 342 drives the impact block 344 to move upward and reset under the elastic force of the spring 341, so as to realize that the impact block 344 can reciprocally impact the scraper 62 during the rotation of the first rotating shaft 35; During the glue application process with the glue application roller 42 rotating, the second transmission component 44 will drive the rotating shaft 72 to rotate, prompting the fan blade 73 to rotate and blow air into the ventilation pipe 7, and then the air nozzle 71 will blow the gas on the base film and the bristles to perform blowing and cleaning on the glue application surface of the base film and the bristles, reducing the possibility that dust and impurities adhered to the base film affect the glue application quality; When the UV glue contained in the glue tank 4 is changed to contain the adhesive, the device can also be used for the coating work of the adhesive during the production of the composite film.

[0048] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A coating device for film production, characterized in that: It includes a base (1); a support frame (2) is provided on the top surface of the base (1); a unwind roller (21) and a wind-up roller (22) located above the unwind roller (21) are rotatably provided on the inner wall of the support frame (2); an adhesive coating box (3) is installed on the base (1) on one side of the support frame (2); a glue material tank (4) is provided on the inner wall at the bottom end of the adhesive coating box (3), and a driving motor (41) is installed on the outer wall of the adhesive coating box (3); the output end of the driving motor (41) is coaxially fixedly connected with an adhesive coating roller (42) located in the glue material tank (4); a feeding port (31) is formed on the side wall of the adhesive coating box (3) close to the support frame (2), and an adjusting roller (32) located above the adhesive coating roller (42) and a plurality of guide rollers (33) located on the side of the adjusting roller (32) close to the feeding port (31) are rotatably connected on the inner wall of the adhesive coating box (3); a gap channel for the base film to pass through is formed by the cooperation of the adjusting roller (32) and the adhesive coating roller (42); an ultraviolet irradiation box (5) is provided on the top surface of the adhesive coating box (3); a discharge port (51) is formed on the side wall of the ultraviolet irradiation box (5) close to the support frame (2); a glue scraping mechanism (6) capable of scraping the glue material on the adhesive coating roller (42) flat is provided in the glue material tank (4).

2. The coating device for film production according to claim 1, characterized in that: The glue scraping mechanism (6) includes an electric push rod (61); the electric push rod (61) is installed on the side wall of the glue material tank (4), the electric push rod (61) is arranged radially pointing to the adhesive coating roller (42) along the adhesive coating roller (42), and the output end of the electric push rod (61) is fixedly connected with a scraper (62).

3. A coating device for film production according to claim 2, characterized in that: A support plate (34) is fixedly connected on the inner wall of the adhesive coating box (3) above the scraper (62); a first magnetic block (342) is connected to the top surface of the support plate (34) through a spring (341); the bottom surface of the first magnetic block (342) is fixedly connected with a sliding plate (343) penetrating through the support plate (34); the sliding plate (343) is slidably matched with the support plate (34), and an impact block (344) is fixedly connected to the bottom end of the sliding plate (343); a first rotating shaft (35) is rotatably connected on the inner wall of the adhesive coating box (3) above the first magnetic block (342); a second magnetic block (352) is fixedly connected to the outer wall of the first rotating shaft (35) above the first magnetic block (342) through a connecting plate (351); the top surface of the first magnetic block (342) has the same magnetic property as the end face of the second magnetic block (352) away from the connecting plate (351); a first transmission component (43) capable of driving the first rotating shaft (35) to rotate is provided at the end of the adhesive coating roller (42).

4. A coating device for film production according to claim 3, characterized in that: The first rotating shaft (35) is coaxial with the adhesive coating roller (42); the first transmission component (43) includes a first belt pulley (431), a second belt pulley (432) and a first belt (433); the first belt pulley (431) is coaxially fixedly connected to the outer wall at the end of the adhesive coating roller (42); the second belt pulley (432) is coaxially fixedly connected to the outer wall at the end of the first rotating shaft (35); the first belt (433) is sleeved outside the first belt pulley (431) and the second belt pulley (432).

5. The coating device for film production according to claim 1, characterized in that: A pressure roller (311) and a brush roller (312) located at the bottom of the pressure roller (311) are rotatably connected to the inner wall of the feeding port (31); bristles that can contact the base film bypassing the pressure roller (311) are provided on the outer peripheral surface of the brush roller (312).

6. The coating device for film production according to claim 5, characterized in that: A ventilation pipe (7) coaxial with the coating roller (42) is fixedly connected to the inner wall of the coating box (3); the end of the ventilation pipe (7) far from the driving motor (41) extends to the outer wall of the coating box (3) and is in an open shape, and a plurality of air jet nozzles (71) pointing to the pressure roller (311) are provided on the outer wall of the ventilation pipe (7), and a rotating shaft (72) is rotatably connected to the inner wall of the ventilation pipe (7) near the open end coaxially; a fan blade (73) is provided on the outer wall of the rotating shaft (72); a second transmission assembly (44) that can drive the rotating shaft (72) to rotate is provided on the outer wall of the end of the coating roller (42).

7. A coating device for film production according to claim 6, characterized in that: The second transmission assembly (44) includes a second rotating shaft (441) and a gear box (442); the second rotating shaft (441) is rotatably connected to the outer wall of the coating box (3) on the side where the open end of the ventilation pipe (7) is located, and the second rotating shaft (441) is coaxial with the coating roller (42); a third pulley (443) is coaxially fixedly connected to the outer wall of the end of the coating roller (42); a fourth pulley (444) is coaxially fixedly connected to the outer wall of the second rotating shaft (441); a second belt (445) is sleeved outside the third pulley (443) and the fourth pulley (444); the gear box (442) is installed on the outer wall of the coating box (3) on the side where the second rotating shaft (441) is located, and the low-speed input end of the gear box (442) is in transmission cooperation connection with the second rotating shaft (441) through a first bevel gear set (446), and the high-speed output end of the gear box (442) is in transmission cooperation connection with the rotating shaft (72) through a second bevel gear set (447).

8. The coating device for film production according to claim 6, wherein: A filter screen (74) is installed on the inner wall of the opening end of the ventilation pipe (7); the rotating shaft (72) is in rotational cooperation with the filter screen (74).

9. The coating device for film production according to claim 8, wherein: A pair of support rollers (52) are rotatably connected to the inner wall of the ultraviolet irradiation box (5); a first through opening is provided on the top surface of the coating box (3); a second through opening corresponding to and cooperating with the first through opening is provided on the bottom wall of the ultraviolet irradiation box (5), and an ultraviolet lamp group (53) is provided at the position between the two support rollers (52) on the top wall of the ultraviolet irradiation box (5).

10. A coating device for film production according to claim 1, characterized in that: A vibration motor (45) is installed on the outer wall of the rubber material tank (4).

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