Coating unit of shading ring coating machine

Abstract

The utility model relates to the technical field of coating machines, and discloses a coating unit of a shading ring coating machine, which comprises a coating box for containing slurry, a coating mechanism and a cleaning mechanism, the coating mechanism comprises an upper coating assembly and a lower coating assembly which are matched for coating, and a gap for a base material to pass through is formed between the upper coating assembly and the lower coating assembly; the upper coating assembly is arranged above the coating box, the lower coating assembly is installed in the coating box, and the lower coating assembly at least comprises a coating roller, a back roller, a first driving motor and a first driving air cylinder; according to the coating unit disclosed by the utility model, the cleaning rollers are arranged at the corresponding positions of the coating roller and the back roller and are used for automatically cleaning the coating roller and the back roller; meanwhile, the coating mode of the coating machine is improved, the coating roller and the back roller are both mounted in the coating box, and the coating slurry is brought to the coating roller through transmission of the back roller, so that the coating amount of the coating roller is better controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, in particular to a coating unit of a light shielding ring coating machine. Background Art

[0002] The aperture is a device used to control the amount of light that passes through the lens and enters the camera body. It is usually installed in the camera device to express the size of the aperture.

[0003] The process for forming a light-shielding ring primarily involves double-sided coating of the substrate to form the light-shielding band, punching and perforating the band, and surface dissolving and forming the PET layer. During the coating process, a coating machine is often used to coat the substrate. However, the coating roller and backing roller of existing coating machines must be manually disassembled and cleaned at the end of the coating process. This process is labor-intensive and labor-intensive, and the coating unit cannot be self-cleaned. The coating machine's low level of automation creates significant inconvenience and requires further optimization. Utility Model Content

[0004] The purpose of the utility model is to provide a coating unit of a light shielding ring coating machine in view of the deficiencies in the prior art, which has the characteristic of automatic cleaning of the coating roller.

[0005] To achieve the above-mentioned purpose, the utility model is a coating unit of a light-shielding ring coating machine, comprising a coating box for holding slurry, and also comprising a coating mechanism and a cleaning mechanism; the coating mechanism comprises an upper coating assembly and a lower coating assembly for cooperating with coating, and a gap for passing a substrate is provided between the upper coating assembly and the lower coating assembly; the upper coating assembly is arranged above the coating box, and the lower coating assembly is installed inside the coating box, and the lower coating assembly at least comprises a coating roller, a back roller, a first driving motor and a first driving cylinder, the coating box is provided with a first slide, the first driving cylinder drives the back roller to move laterally along the first slide until it abuts the coating roller, and lifts the coating roller upward to reach the coating position, at which time the first driving motor drives the back roller to rotate and transfers the slurry at the bottom of the coating box from the back roller to the coating roller, and the coating roller performs coating; when coating is completed, the cleaning mechanism comprises a first cleaning assembly and a second cleaning assembly for automatically cleaning the coating roller and the back roller, respectively, and the first cleaning assembly comprises a roller body and a brush protruding from the surface of the roller body.

[0006] Preferably, the upper coating assembly includes a mounting frame and an extrusion roller assembled on the mounting frame.

[0007] Preferably, the coating box is symmetrically provided with longitudinal slide grooves, and both ends of the coating roller are movably installed in the longitudinal slide grooves.

[0008] Preferably, a limiting frame for assisting coating is installed on the top of the coating box.

[0009] Preferably, the limiting frame includes a group of symmetrically arranged transverse limiting plates and a group of longitudinal limiting plates; the longitudinal limiting plates are arranged above the transverse limiting plates, and a material channel for the substrate to pass through is formed between the longitudinal limiting plates; a coating position is formed between the transverse limiting plates.

[0010] Preferably, the first cleaning assembly further includes a second driving motor and a scraper, wherein the scraper is protruding from the surface of the roller body; the scraper and the brush are spaced apart; and the second driving motor drives the roller body to rotate.

[0011] Preferably, the first cleaning component further includes a second driving cylinder, and the coating box is provided with a second slide groove; the second driving cylinder drives the roller body to move along the second slide groove.

[0012] Preferably, the second cleaning assembly includes a cleaning roller and a cleaning member covering the outer surface of the cleaning roller.

[0013] Preferably, the outer surface of the cleaning roller is further provided with multiple rows of through holes, the cleaning roller is hollow, and one end of the cleaning roller is connected to a liquid injector.

[0014] Beneficial effects: Compared with the prior art, the present invention is a coating unit of a light shielding ring coating machine, and the present invention has the following advantages: 1. The coating unit of the present invention is provided with cleaning rollers at corresponding positions of the coating roller and the backing roller, which are used to realize automatic cleaning of the coating roller and the backing roller, thereby improving the degree of automation of the coating machine and making the overall use of the coating machine more convenient;

[0015] 2. Improve the coating method of the coating machine. Install both the coating roller and the backing roller in the coating box. The backing roller drives the coating slurry to the coating roller, so that the coating amount of the coating roller is better controlled and the coating effect is further optimized.

[0016] 3. The first cleaning roller is also equipped with a scraper, which can be used in conjunction with the backing roller to further control the coating amount of the coating roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the coating box of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the external drive device of the coating box of the present utility model.

[0020] Figure 4 This is a schematic structural diagram of the lower cleaning roller of the present utility model.

[0021] Reference numerals include:

[0022] Coating box--1, first chute--11, longitudinal chute--12, limit frame--13, transverse limit plate--14, longitudinal limit plate--15, second chute--16, coating mechanism--2, upper coating assembly--21, mounting frame--211, squeezing roller--212, lower coating assembly--22, coating roller--221, back roller--222, first drive motor--223, first drive cylinder--224, cleaning mechanism--3, first cleaning assembly--31, roller body--311, brush--312, second drive motor--313, scraper--314, second drive cylinder--315, second cleaning assembly--32, cleaning roller--321, cleaning member--322, through hole--323, injector--324. DETAILED DESCRIPTION

[0023] The following is combined with Figures 1 to 4 The utility model is described in detail.

[0024] The utility model is a coating unit of a light shield coating machine, comprising a coating box 1 for holding slurry, a coating mechanism 2 and a cleaning mechanism 3; the coating mechanism 2 comprises an upper coating component 21 and a lower coating component 22 for matching coating, a gap for substrate passing is provided between the upper coating component 21 and the lower coating component 22; the upper coating component 21 is provided above the coating box 1, the lower coating component 22 is installed inside the coating box 1, the lower coating component 22 comprises at least a coating roller 221, a backing roller 222, a first drive motor 223 and a second drive motor 224; A driving cylinder 224, the coating box 1 is provided with a first slide 11, the first driving cylinder 224 drives the back roller 222 to move along the first slide 11 and can abut the coating roller 221, the first driving motor 223 drives the back roller 222 to rotate and transfer the slurry to the coating roller 221; the cleaning mechanism 3 includes a first cleaning component 31 and a second cleaning component 32 for automatically cleaning the coating roller 221 and the back roller 222 respectively, wherein the first cleaning component 31 includes a roller body 311 and a brush 312 protruding from the surface of the roller body 311.

[0025] The present invention is provided with cleaning components at the corresponding positions of the coating roller 221 and the back roller 222, which are used to realize automatic cleaning of the coating roller 221 and the back roller 222, thereby improving the degree of automation of the coating machine and making the coating machine more convenient to use as a whole. On the other hand, the coating method of the coating machine is improved, and the coating roller 221 and the back roller 222 are both installed in the coating box 1, and the back roller 222 lifts the coating roller 221 to drive the coating slurry to the coating roller 221. In the process of the back roller 222 lifting the coating roller 221, the position of the coating roller 221 can be adjusted by adjusting the force of the back roller 222 squeezing the coating roller 221, thereby adjusting the coating position of the coating box 1, and at the same time, the coating amount of the coating roller 221 can be controlled, so that the coating amount of the coating roller 221 is better controlled and the coating effect is further optimized.

[0026] As an embodiment, the upper coating assembly 21 includes a mounting frame 211 and an extrusion roller 212 assembled on the mounting frame 211. The coating method of this technical solution is extrusion coating, and efficient coating is achieved by the corresponding cooperation between the extrusion roller 212 and the coating roller 221 at the upper and lower sides.

[0027] To cooperate with the coating method of this technical solution, the coating box 1 is symmetrically provided with longitudinal slide grooves 12, and both ends of the coating roller 221 are movably installed in the longitudinal slide grooves 12, so that the back roller 222 can lift the coating roller 221 upward through the longitudinal slide grooves 12.

[0028] Preferably, a limiting frame 13 for auxiliary coating is installed on the top of the coating box 1.

[0029] Among them, such as Figure 1 As shown, the limiting frame 13 comprises a symmetrically arranged set of transverse limiting plates 14 and a set of longitudinal limiting plates 15. The longitudinal limiting plates 15 are positioned above the transverse limiting plates 14, and a material channel for the substrate to pass through is formed between the longitudinal limiting plates 15. A coating station is formed between the transverse limiting plates 14. The coating station refers to the position defined by the two transverse limiting plates 14 where the coating roller 221 emerges from the top of the coating chamber 1. The overall limiting frame 13 ensures both stable substrate transport and a stable coating process.

[0030] Preferably, the first cleaning assembly 31 further includes a second driving motor 313 and a scraper 314 . The scraper 314 is protruding from the surface of the roller 311 . The scraper 314 is spaced apart from the brush 312 . The second driving motor 313 drives the roller 311 to rotate.

[0031] Optionally, the first cleaning component 31 further includes a second driving cylinder 315 , and the coating box 1 is provided with a second chute 16 ; the second driving cylinder 315 drives the roller body 311 to move along the second chute 16 .

[0032] When the coating process is completed, the coating unit stops and the remaining slurry is discharged from the coating box 1. Then the second driving cylinder 315 drives the roller body 311 to move away from the coating roller 221. Then the second driving motor 313 drives the roller body to rotate. After the brush 312 is in the correct position, the second driving cylinder 315 drives the roller body 311 to reset. At this time, the coating roller 221 rotates, and the brush 312 automatically cleans the surface of the coating roller 221. There is no need to disassemble the coating roller 221 for manual cleaning.

[0033] In this structure, when the coating unit is running, the scraper 314 can be switched to align with the surface of the coating roller 221 through the cooperation of the second driving cylinder 315 and the second driving motor 313. The scraper 314 can cooperate with the back roller 222 to further control the coating amount of the coating roller 221.

[0034] Preferably, the second cleaning assembly 32 includes a cleaning roller 321 and a cleaning member 322 covering the outer surface of the cleaning roller 321. When the back roller 222 returns to its original position, the cleaning roller 321 just abuts against the back roller 222. At this time, the back roller 222 rotates, and the cleaning member 322 can automatically wipe and clean the surface of the back roller 222. Here, the cleaning member 322 can be a brush 312, a towel, etc.

[0035] To further improve the technical solution, the outer surface of the cleaning roller 321 is further provided with multiple rows of through-holes 323. The cleaning roller 321 is hollow, and one end of the cleaning roller 321 is connected to a liquid injector 324. The liquid injector 324 injects cleaning liquid into the interior of the cleaning roller 321 and discharges the liquid through the through-holes 323 on the surface of the cleaning roller 321. This allows the cleaning element 322 to clean the back roller 222 while spraying cleaning liquid toward the back roller 222, which is equivalent to manually washing the back roller 222 with water, further improving the cleaning effect.

[0036] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A coating unit of a light shield coating machine, comprising a coating box (1) for holding a slurry, characterized in that: The invention also includes a coating mechanism (2) and a cleaning mechanism (3); the coating mechanism (2) includes an upper coating component (21) and a lower coating component (22) for matching coating, and a gap for the substrate to pass through is provided between the upper coating component (21) and the lower coating component (22); the upper coating component (21) is provided above the coating box (1), and the lower coating component (22) is installed inside the coating box (1); the lower coating component (22) includes at least a coating roller (221), a back roller (222), a first driving motor (223) and a first driving cylinder (224); the coating box (1 ) is provided with a first chute (11), the first driving cylinder (224) drives the back roller (222) to move along the first chute (11) and abut against the coating roller (221), the first driving motor (223) drives the back roller (222) to rotate and transfer the slurry to the coating roller (221); the cleaning mechanism (3) includes a first cleaning component (31) and a second cleaning component (32) for cleaning the coating roller (221) and the back roller (222) respectively, the first cleaning component (31) includes a roller body (311) and a brush (312) protruding from the surface of the roller body (311).

2. The coating unit of the light shield coating machine according to claim 1, characterized in that: The upper coating assembly (21) comprises a mounting frame (211) and an extrusion roller (212) assembled on the mounting frame (211).

3. The coating unit of the shading ring coating machine according to claim 1, characterized in that: The coating box (1) is symmetrically provided with longitudinal slide grooves (12), and both ends of the coating roller (221) are movably installed in the longitudinal slide grooves (12).

4. The coating unit of the light shield coating machine according to claim 1, characterized in that: A limiting frame (13) for assisting coating is installed on the top of the coating box (1).

5. The coating unit of the light shield coating machine according to claim 4, characterized in that: The limiting frame (13) comprises a group of symmetrically arranged transverse limiting plates (14) and a group of longitudinal limiting plates (15); the longitudinal limiting plates (15) are arranged above the transverse limiting plates (14), and a material channel for the substrate to pass through is formed between the longitudinal limiting plates (15); and a coating position is formed between the transverse limiting plates (14).

6. The coating unit of the light shield coating machine according to claim 1, characterized in that: The first cleaning component (31) further comprises a second driving motor (313) and a scraper (314); the scraper (314) is protruding from the surface of the roller body (311); the scraper (314) and the brush (312) are spaced apart; the second driving motor (313) drives the roller body (311) to rotate.

7. The coating unit of the light shield coating machine according to claim 6, characterized in that: The first cleaning component (31) further includes a second driving cylinder (315), and the coating box (1) is provided with a second chute (16); the second driving cylinder (315) drives the roller body (311) to move along the second chute (16).

8. The coating unit of the light shield coating machine according to claim 1, characterized in that: The second cleaning assembly (32) comprises a cleaning roller (321) and a cleaning member (322) covering the outer surface of the cleaning roller (321).

9. The coating unit of the light shield coating machine according to claim 8, characterized in that: The outer surface of the cleaning roller (321) is further provided with multiple rows of through holes (323); the cleaning roller (321) is hollow, and one end of the cleaning roller (321) is connected to a liquid injector (324).

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