A coating device

Abstract

The utility model discloses a kind of coating devices, including three back type support bottom frame, the top of three The same conveying frame is fixedly connected in back type support bottom frame, the inside rotationally connected of conveying frame has two round rollers, the outer wall of conveying frame is fixedly connected with servo motor, the outer wall of one of the round roller is fixedly connected with the one end of servo motor output shaft, the outer wall of two The same rubber transmission belt is sleeved in round roller.The utility model can quickly adjust the interval of two U-shaped guide frames by the sliding cooperation of U-shaped frame, U-shaped piece and roller, adapt to different width of copper-clad plate, without replacing fixture, significantly reduce the change time, improve production efficiency.Rubber guide roller and copper-clad plate flexible contact, avoid scratching surface, while ensure that copper-clad plate is not deviated during conveying;Linear motor drives solder resist ink spray gun to reciprocate, realize uniform spraying of solder resist ink.

Description

Technical Field

[0001] This utility model relates to the field of coating technology, and in particular to a coating device. Background Technology

[0002] During the production and processing of copper-clad laminates, solder resist ink needs to be coated. This is mainly to provide a permanent protective film to prevent oxidation of the copper-clad surface, corrosion from moisture and solvents, and scratches from foreign objects. At the same time, it enhances the electrical insulation performance of the entire board surface, thereby extending the service life of the printed circuit board.

[0003] In the existing technology, traditional coating equipment usually adopts a fixed guide structure, which cannot be flexibly adjusted to adapt to copper clad laminates of different widths. This results in the need to change the fixture when changing product specifications, which affects production efficiency. Therefore, we propose a coating device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a coating device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A coating apparatus includes three U-shaped support frames. A common conveyor frame is fixedly connected to the top of each of the three U-shaped support frames. Two circular rollers are rotatably connected inside the conveyor frame. A servo motor is fixedly connected to the outer wall of the conveyor frame. One end of the output shaft of the servo motor is fixedly connected to the outer wall of one of the circular rollers. A common rubber transmission belt is fitted onto the outer walls of the two circular rollers. Multiple rubber plates are uniformly fixedly connected to the outer wall of the rubber transmission belt. Four U-shaped frames are fixedly connected to the outer wall of the conveyor frame. U-shaped components are slidably connected inside each of the four U-shaped frames. Multiple rollers are rotatably connected inside each of the four U-shaped components. Two U-shaped guide frames are fixedly connected to each of the four U-shaped components in pairs. Multiple rubber guide rollers are rotatably connected inside each of the two U-shaped guide frames. A coating assembly is provided on the outer wall of the conveyor frame.

[0007] Preferably, the coating assembly includes two solder resist ink spray guns, a housing is fixedly fitted on the outer wall of the conveying frame, two linear motors are fixedly connected inside the housing, the outer walls of the moving ends of the two linear motors are respectively fixed to the outer walls of the two solder resist ink spray guns, and a pump body is fixedly connected to one end of each solder resist ink spray gun. The copper-clad laminate is coated with solder resist ink by setting the coating assembly.

[0008] Preferably, the outer wall of the conveying frame has a through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the output shaft of the servo motor. By setting the servo motor to drive the roller to rotate, the rubber plate will be rotated.

[0009] Preferably, the outer wall of the roller is slidably connected to the inner wall of the U-shaped frame, and the U-shaped guide frame is translated by setting the roller.

[0010] Preferably, the outer wall of the chassis has two rectangular grooves, and the inner wall of the rectangular grooves is slidably connected to the outer wall of the two U-shaped guide frames.

[0011] Preferably, the top of the U-shaped component has a threaded hole, and the inner wall of the threaded hole is threaded with a bolt, so that the U-shaped component is fixed inside the U-shaped frame by setting the bolt.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This solution utilizes the sliding cooperation of U-shaped frames, U-shaped components, and rollers to quickly adjust the spacing between the two U-shaped guide frames, accommodating copper-clad laminates of varying widths without requiring fixture changes, significantly reducing changeover time and improving production efficiency. The rubber guide rollers maintain flexible contact with the copper-clad laminate, preventing surface scratches and ensuring stable conveying. A linear motor drives the solder resist ink spray gun in reciprocating motion, achieving uniform spraying of the solder resist ink. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view cross-sectional structural diagram of a coating device proposed in this utility model;

[0016] Figure 2 This is a top cross-sectional view of a coating device proposed in this utility model;

[0017] Figure 3 This is a top view of a coating device proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the U-shaped frame, U-shaped component, and roller structure of a coating device proposed in this utility model.

[0019] In the diagram: 1. U-shaped support base frame; 2. Conveyor frame; 3. Circular roller; 4. Servo motor; 5. Rubber transmission belt; 6. Rubber plate; 7. U-shaped frame; 8. U-shaped component; 9. Roller; 10. U-shaped guide frame; 11. Rubber guide roller; 12. Machine box; 13. Linear motor; 14. Solder resist ink spray gun. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1-4 As shown, a coating device is disclosed, comprising three U-shaped support base frames 1. The top of the three U-shaped support base frames 1 is fixedly connected to the same conveyor frame 2. The interior of the conveyor frame 2 is rotatably connected to two rollers 3 via existing bearings. A servo motor 4 is fixedly connected to the outer wall of the conveyor frame 2. The outer wall of the conveyor frame 2 has a through hole, the inner wall of which is rotatably connected to the outer wall of the output shaft of the servo motor 4. One end of the output shaft of the servo motor 4 is fixedly connected to the outer wall of one of the rollers 3. The outer walls of the two rollers 3 are fitted with the same rubber transmission belt 5. The rubber transmission belt 5 is made of anti-static rubber or silicone to avoid static electricity attracting dust and affecting the coating quality. The outer wall of the rubber transmission belt 5 is uniformly fixedly connected to multiple rubber plates 6 via existing screws. The rubber plates 6 can be detachable to facilitate the replacement of rubber plates 6 of different heights and to adapt to the conveying of substrates of different thicknesses. The operation of the servo motor 4 drives the rubber transmission belt 5 to rotate, and the rotation of the rubber transmission belt 5 drives the multiple rubber plates 6 to move. When the rubber plates 6 move to the outer wall of the copper-clad laminate, they push it to move linearly along two U-shaped guide frames 10.

[0022] Four U-shaped frames 7 are fixedly connected to the outer wall of the conveying frame 2. U-shaped parts 8 are slidably connected inside the four U-shaped frames 7. The top of the U-shaped parts 8 is provided with a threaded hole, and the inner wall of the threaded hole is threaded with a bolt. Multiple rollers 9 are rotatably connected inside the four U-shaped parts 8. The outer wall of the rollers 9 is slidably connected to the inner wall of the U-shaped frames 7. The rollers 9 reduce the friction between the U-shaped parts 8 and the U-shaped frames 7, which facilitates the movement of the U-shaped guide frame 10. After rotating the bolts so that the bottom of the threaded end is pressed against the inner wall of the U-shaped frame 7, the position of the U-shaped guide frame 10 can be fixed.

[0023] The four U-shaped parts 8 are fixedly connected in pairs to two U-shaped guide frames 10. Each of the two U-shaped guide frames 10 has a bearing inside which multiple rubber guide rollers 11 are rotatably connected. The multiple rubber guide rollers 11 are located on both sides of the copper-clad laminate and play a role in moving and guiding.

[0024] The outer wall of the conveying frame 2 is provided with a coating assembly, which includes two solder resist ink spray guns 14. A housing 12 is fixedly fitted on the outer wall of the conveying frame 2. Two rectangular grooves are opened on the outer wall of the housing 12. The inner wall of the rectangular grooves is slidably connected to the outer wall of two U-shaped guide frames 10.

[0025] Two linear motors 13 are fixedly connected inside the chassis 12. The wiring harness of the linear motors 13 moves through an existing cable chain. The outer walls of the moving ends of the two linear motors 13 are respectively fixed to the outer walls of the two solder resist ink spray guns 14. A pump body is fixedly connected to one end of each solder resist ink spray gun 14, and an ink tank is fixedly connected to the input end of the pump body.

[0026] Working principle: During use, the copper-clad laminate to be coated is placed inside two U-shaped frames 7 and positioned between two sets of rubber guide rollers 11. For guiding and conveying copper-clad laminates of different widths, two U-shaped guide frames 10 are moved by the four U-shaped frames 7. The U-shaped guide frames 10 are moved via U-shaped parts 8 and rollers 9. The distance between the two U-shaped guide frames 10 is adjusted to accommodate copper-clad laminates of different widths. After adjustment, the bolts on the U-shaped parts 8 are rotated to press their bottoms against the inner wall of the U-shaped frames 7, thus fixing the position of the U-shaped parts 8. The servo motor 4 drives the circular rollers 3... The system rotates, and the tension and friction force drive the rubber transmission belt 5 to rotate, thereby driving multiple rubber plates 6 to rotate. After the multiple rubber plates 6 rotate, they come into contact with the outer wall of the copper-clad laminate. The movement of the rubber plates 6 drives the copper-clad laminate to move. As the copper-clad laminate moves into the housing 12, the operation of two linear motors 13 drives two solder resist ink spray guns 14 to move back and forth. The operation of the pump body draws the solder resist ink from the external ink tank to the solder resist ink spray guns 14, and then the two solder resist ink spray guns 14 spray the solder resist ink downward to coat the outer wall of the copper-clad laminate.

[0027] It should be noted that when actually put into use, an existing PLC controller can be added. The PLC controller is electrically connected to the servo motor 4, linear motor 13, solder resist ink spray gun 14, and pump body to facilitate the control of the overall operation.

[0028] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0029] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coating apparatus comprising three U-shaped support base frames (1), characterized in that, The top of the three U-shaped support base frames (1) is fixedly connected to the same conveyor frame (2). The conveyor frame (2) is rotatably connected to two rollers (3). The outer wall of the conveyor frame (2) is fixedly connected to a servo motor (4). One end of the output shaft of the servo motor (4) is fixedly connected to the outer wall of one of the rollers (3). The outer walls of the two rollers (3) are fitted with the same rubber transmission belt (5). The outer wall of the rubber transmission belt (5) is uniformly fixedly connected to multiple rubber plates (6). The outer wall of the conveyor frame (2) is fixedly connected to four U-shaped frames (7). The interior of each of the four U-shaped frames (7) is slidably connected to a U-shaped component (8). The interior of each of the four U-shaped components (8) is rotatably connected to multiple rollers (9). The four U-shaped components (8) are fixedly connected to two U-shaped guide frames (10) in pairs. The interior of each of the two U-shaped guide frames (10) is rotatably connected to multiple rubber guide rollers (11). The outer wall of the conveyor frame (2) is provided with a coating assembly.

2. The coating apparatus according to claim 1, characterized in that, The coating assembly includes two solder resist ink spray guns (14). A housing (12) is fixedly fitted on the outer wall of the conveying frame (2). Two linear motors (13) are fixedly connected inside the housing (12). The outer walls of the moving ends of the two linear motors (13) are respectively fixed to the outer walls of the two solder resist ink spray guns (14). A pump body is fixedly connected to one end of each solder resist ink spray gun (14).

3. The coating apparatus according to claim 1, characterized in that, The outer wall of the conveying frame (2) is provided with a through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the output shaft of the servo motor (4).

4. The coating apparatus according to claim 1, characterized in that, The outer wall of the roller (9) is slidably connected to the inner wall of the U-shaped frame (7).

5. A coating apparatus according to claim 2, characterized in that, The outer wall of the chassis (12) has two rectangular grooves, and the inner wall of the rectangular grooves is slidably connected to the outer wall of the two U-shaped guide frames (10).

6. The coating apparatus according to claim 1, characterized in that, The top of the U-shaped part (8) is provided with a threaded hole, and the inner wall of the threaded hole is threaded with a bolt.

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