Surface coating device for circuit board production

Abstract

The utility model relates to the technical field of circuit board production, and discloses a surface coating device for circuit board production, which comprises a main frame, the inner wall of the main frame is fixedly connected with a transmission assembly, the inner wall of the main frame is provided with a coating assembly, the coating assembly is used for spraying paint on the surface of a circuit board, and the inner wall of the main frame is provided with a positioning assembly. The positioning assembly is used for positioning a circuit board on the surface of the transmission assembly and comprises a first servo motor, and the first servo motor is fixedly installed on the side wall of the main frame; according to the surface coating device for circuit board production, by means of threaded connection between a two-way threaded rod and a sliding plate, the sliding plate drives a connecting plate to slide on the two sides of the two-way threaded rod, so that the distance between rotating wheels is adjusted, the distance between the rotating wheels is consistent with the width of a circuit board, and therefore when the circuit board is conveyed on the surface of a conveying assembly, the circuit board is not prone to falling off. And the circuit board can be clamped between the rotating wheels, so that the coating component can uniformly spray the coating on the surface of the circuit board.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, specifically to a surface coating device for circuit board manufacturing. Background Technology

[0002] The performance of circuit boards is affected by many external or environmental factors, such as moisture, extreme temperatures, salt spray, and chemicals. A protective coating is a polymer film applied to the surface of a circuit board to protect the board and its components from corrosion and environmental pollution. By preventing the effects of pollutants and environmental factors, the protective coating can prevent corrosion of conductors, solder joints, and circuits. In addition, it can also act as insulation, thereby reducing the impact of thermal and mechanical stress on the components.

[0003] In existing coating devices, circuit boards are placed directly on the surface of a conveyor belt and transported to the coating assembly for coating. However, because the circuit boards are not positioned and corrected when placed on the conveyor belt, the coating component sprays paint onto the surface of the circuit boards in a misaligned manner, resulting in uneven coating. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a surface coating device for circuit board production, which has the advantages of facilitating uniform coating by positioning the circuit board and avoiding the problem of uneven coating on the circuit board surface.

[0005] To achieve uniform coating on the positioning circuit board, this utility model provides the following technical solution:

[0006] A surface coating apparatus for circuit board production includes a main frame, a transmission component fixedly connected to the inner wall of the main frame, a coating component installed on the inner wall of the main frame for spraying coating onto the surface of the circuit board, and a positioning component installed on the inner wall of the main frame for positioning the circuit board on the surface of the transmission component. The apparatus also includes:

[0007] The positioning component includes a first servo motor, which is fixedly installed on the side wall of the main frame. A bidirectional threaded rod is fixedly connected to the output end of the first servo motor. Sliding plates are threadedly connected to both sides of the bidirectional threaded rod. A connecting plate is fixedly connected to the bottom of the sliding plate. A rotating wheel is rotatably connected to the bottom of the connecting plate. Multiple sets of rotating wheels are provided, and the rotating wheels extend to the outside of the connecting plate. The sliding plate is in contact with the inner top wall of the main frame.

[0008] According to some embodiments, the coating assembly includes a storage tank, which is fixedly installed on the top of the main frame. A pump body is fixedly connected to the side wall of the storage tank. An L-shaped pipe is fixedly connected to the output end of the pump body and extends into the inner cavity of the main frame. A spray box is fixedly connected to the bottom end of the L-shaped pipe. Multiple atomizing nozzles are fixedly connected to the bottom of the spray box. A hot air blower is fixedly connected to the top of the main frame, and an air outlet is fixedly connected to the output end of the hot air blower located in the inner cavity of the main frame.

[0009] According to some embodiments, a threaded bolt is threadedly connected to the top of the main frame, and a mounting bracket is rotatably connected to the bottom end of the threaded bolt. A brush head is fixedly connected to the bottom of the mounting bracket, and the brush head is made of a flexible material. A second servo motor is fixedly connected to the side wall of the main frame, and a rotating shaft is fixedly connected to the output end of the second servo motor. A transmission roller is fixedly connected to the side wall of the rotating shaft, and the transmission roller and the transmission assembly are rotatably connected.

[0010] Beneficial effects

[0011] This utility model provides a surface coating device for circuit board manufacturing, which has the following advantages:

[0012] This surface coating device for circuit board production utilizes the threaded connection between a bidirectional threaded rod and a sliding plate, allowing the sliding plate to drive the connecting plate to slide on both sides of the bidirectional threaded rod. This adjusts the spacing between the rotating wheels, ensuring that the spacing between the rotating wheels matches the width of the circuit board. Consequently, when the circuit board is transported on the surface of the transport component, the rotating wheels can clamp the circuit board between them, facilitating the coating component to evenly spray the coating onto the surface of the circuit board. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the device of this utility model;

[0014] Figure 2 This is a partial cross-sectional structural diagram of the device of this utility model;

[0015] Figure 3 This is a structural schematic diagram (front section) of the device of this utility model;

[0016] Figure 4 This is a structural schematic diagram (side section) of the positioning component of this utility model.

[0017] In the diagram: 1. Main frame; 101. Transmission assembly; 2. Coating assembly; 201. Storage tank; 202. Pump body; 203. L-shaped pipe; 204. Spray box; 205. Hot air blower; 206. Air outlet; 3. Positioning assembly; 301. First servo motor; 302. Bidirectional threaded rod; 303. Sliding plate; 304. Connecting plate; 305. Rotating wheel; 4. Threaded bolt; 401. Mounting bracket; 402. Brush head; 403. Second servo motor; 404. Rotating shaft; 405. Transmission roller. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1-4 A surface coating apparatus for circuit board production includes a main frame 1, a transmission assembly 101 fixedly connected to the inner wall of the main frame 1, a coating assembly 2 installed on the inner wall of the main frame 1 for spraying coating onto the surface of the circuit board, and a positioning assembly 3 installed on the inner wall of the main frame 1 for positioning the circuit board on the surface of the transmission assembly 101. The apparatus also includes:

[0020] Positioning component 3 includes a first servo motor 301, which is fixedly installed on the side wall of the main frame 1. The output end of the first servo motor 301 is fixedly connected to a bidirectional threaded rod 302. Both sides of the bidirectional threaded rod 302 are threadedly connected to sliding plates 303. The bottom of the sliding plate 303 is fixedly connected to a connecting plate 304, and the bottom of the connecting plate 304 is rotatably connected to a rotating wheel 305.

[0021] Multiple sets of rotating wheels 305 are provided, and the rotating wheels 305 extend to the outside of the connecting plate 304, and the sliding plate 303 is in contact with the inner top wall of the main frame 1;

[0022] It should be noted that: the first servo motor 301 drives the bidirectional threaded rod 302 to rotate. The threaded connection between the bidirectional threaded rod 302 and the sliding plate 303 causes the sliding plate 303 to drive the connecting plate 304 to slide on both sides of the bidirectional threaded rod 302, thereby adjusting the distance between the rotating wheels 305 so that the distance between the rotating wheels 305 is consistent with the width of the circuit board. Thus, when the circuit board is transferred on the surface of the transmission component 101, the rotating wheels 305 can clamp the circuit board in the middle. Since the connecting plate 304 and the rotating wheels 305 are rotatably connected, it will not affect the transfer of the circuit board. This allows the coating component 2 to evenly spray the coating onto the surface of the circuit board.

[0023] Reference Figures 1-4 The coating component 2 includes a storage tank 201, which is fixedly installed on the top of the main frame 1, and a pump body 202 is fixedly connected to the side wall of the storage tank 201.

[0024] An L-shaped tube 203 is fixedly connected to the output end of the pump body 202, and the L-shaped tube 203 extends into the inner cavity of the main frame 1. A spray box 204 is fixedly connected to the bottom end of the L-shaped tube 203.

[0025] The bottom of the spray box 204 is fixedly connected to multiple atomizing nozzles, and the top of the main frame 1 is fixedly connected to a hot air blower 205. An air outlet 206 is fixedly connected to the output end of the hot air blower 205 located in the inner cavity of the main frame 1.

[0026] It should be noted that: the inner cavity of the storage tank 201 contains coating material for the circuit board. The pump body 202 can drive the coating material in the inner cavity of the storage tank 201 to the inner cavity of the spray box 204 through the L-shaped pipe 203 and then spray it out from the atomizing nozzle, thereby evenly spraying the coating material onto the surface of the circuit board. The hot air blower 205 delivers hot air to the inner cavity of the main frame 1 through the air outlet 206, thereby drying the coating material on the surface of the circuit board.

[0027] Reference Figures 1-4 The top of the main frame 1 is threaded with a threaded bolt 4, and the bottom of the threaded bolt 4 is rotatably connected to a mounting bracket 401;

[0028] The bottom of the mounting bracket 401 is fixedly connected to a brush head 402, and the brush head 402 is made of a flexible material;

[0029] A second servo motor 403 is fixedly connected to the side wall of the main frame 1. A rotating shaft 404 is fixedly connected to the output end of the second servo motor 403. A transmission roller 405 is fixedly connected to the side wall of the rotating shaft 404, and the transmission roller 405 and the transmission assembly 101 are rotatably connected.

[0030] It should be noted that: rotating the threaded bolt 4 causes the mounting bracket 401 to move downward, so that the brush head 402 installed in the inner cavity of the mounting bracket 401 contacts the surface of the circuit board, thereby evenly coating the surface of the circuit board again. The second servo motor 403 is driven, which drives the rotating shaft 404 and the transmission roller 405 to rotate, thereby driving the transmission assembly 101 to rotate and transmit the circuit board.

[0031] Operation method: Drive the first servo motor 301, which drives the bidirectional threaded rod 302 to rotate. Utilize the threaded connection between the bidirectional threaded rod 302 and the sliding plate 303 to make the sliding plate 303 drive the connecting plate 304 to slide on both sides of the bidirectional threaded rod 302, thereby adjusting the distance between the rotating wheels 305 so that the distance between the rotating wheels 305 is consistent with the width of the circuit board. Thus, when the circuit board is transmitted on the surface of the transmission component 101, the rotating wheels 305 can clamp the circuit board in the middle. Since the connecting plate 304 and the rotating wheels 305 are rotatably connected, it will not affect the transmission of the circuit board.

[0032] The inner cavity of the storage tank 201 contains coating material for the circuit board. The pump body 202 can drive the coating material in the inner cavity of the storage tank 201 to be transferred to the inner cavity of the spray box 204 through the L-shaped pipe 203 and then sprayed out from the atomizing nozzle, thereby evenly spraying the coating material onto the surface of the circuit board. Rotating the threaded bolt 4 causes the mounting bracket 401 to move down, so that the brush head 402 installed in the inner cavity of the mounting bracket 401 comes into contact with the surface of the circuit board, thereby evenly coating the surface of the circuit board again. Then, the hot air blower 205 delivers hot air to the inner cavity of the main frame 1 through the air outlet 206, thereby drying the coating material on the surface of the circuit board.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface coating apparatus for circuit board production, comprising a main frame (1), characterized in that: The inner wall of the main frame (1) is fixedly connected to a transmission component (101), and a coating component (2) is installed on the inner wall of the main frame (1). The coating component (2) is used to spray paint onto the surface of the circuit board. The inner wall of the main frame (1) is installed with a positioning component (3), which is used to position the circuit board on the surface of the transmission component (101). The system also includes: The positioning component (3) includes a first servo motor (301), which is fixedly installed on the side wall of the main frame (1). The output end of the first servo motor (301) is fixedly connected to a bidirectional threaded rod (302). Both sides of the bidirectional threaded rod (302) are threadedly connected to sliding plates (303). The bottom of the sliding plate (303) is fixedly connected to a connecting plate (304), and the bottom of the connecting plate (304) is rotatably connected to a rotating wheel (305).

2. The surface coating apparatus for circuit board production according to claim 1, characterized in that: The rotating wheel (305) is provided in multiple sets, and the rotating wheel (305) extends to the outside of the connecting plate (304). The sliding plate (303) is attached to the inner top wall of the main frame (1).

3. The surface coating apparatus for circuit board production according to claim 2, characterized in that: The coating assembly (2) includes a storage tank (201), which is fixedly installed on the top of the main frame (1), and a pump body (202) is fixedly connected to the side wall of the storage tank (201).

4. The surface coating apparatus for circuit board production according to claim 3, characterized in that: The pump body (202) is fixedly connected to an L-shaped tube (203) at its output end, and the L-shaped tube (203) extends into the inner cavity of the main frame (1). The bottom end of the L-shaped tube (203) is fixedly connected to a spray box (204).

5. The surface coating apparatus for circuit board production according to claim 4, characterized in that: The bottom of the spray box (204) is fixedly connected to multiple atomizing nozzles, and the top of the main frame (1) is fixedly connected to a hot air blower (205). The output end of the hot air blower (205) located in the inner cavity of the main frame (1) is fixedly connected to an air outlet (206).

6. The surface coating apparatus for circuit board production according to claim 5, characterized in that: The top of the main frame (1) is threaded with a threaded bolt (4), and the bottom of the threaded bolt (4) is rotatably connected with a mounting bracket (401).

7. The surface coating apparatus for circuit board production according to claim 6, characterized in that: The mounting bracket (401) has a brush head (402) fixedly connected to its bottom, and the brush head (402) is made of a flexible material.

8. The surface coating apparatus for circuit board production according to claim 7, characterized in that: The main frame (1) is fixedly connected to a second servo motor (403) on its side wall. The output end of the second servo motor (403) is fixedly connected to a rotating shaft (404). The side wall of the rotating shaft (404) is fixedly connected to a transmission roller (405), and the transmission roller (405) and the transmission assembly (101) are rotatably connected.

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