A surface coating mechanism for circuit board production

Abstract

The utility model discloses a surface coating mechanism for circuit board production, comprising a base, on which a coating component and a cleaning component are fixedly arranged, the coating component is arranged on one side of the cleaning component, the coating component comprises a reciprocating unit and a workbench for placing the circuit board, the utility model is provided with a cleaning component, after the coating brush coats the circuit board surface with three-proof paint, the coating brush needs to be cleaned, a motor controls a connecting rod threadedly connected to a screw rod to drive the coating brush to move, so that the coating brush moves to above a cleaning pool, a hydraulic rod pushes a connecting rod to rise, so that the cleaning pool rises, a diluent for cleaning the coating brush is injected into the cleaning pool, the coating brush moves to a gear meshing with a rack, and then a motor is started, and the motor controls the coating brush to reciprocate, so that the three-proof paint attached to the bristles of the coating brush is cleaned off by the diluent in time, thereby reducing the harm of the three-proof paint to the human body.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a surface coating mechanism used for circuit board production. Background Art

[0002] Printed circuit boards are carriers for electrical connections of electronic components and are widely used in almost all electronic devices. They have a dual role of conductive lines and insulating base plates, and can replace complex wiring. The performance of circuit boards will be affected by many external or environmental factors, such as moisture, extreme temperatures, salt spray, and chemicals. Therefore, current circuit boards often need to be coated with conformal coating after production. Conformal coating is a specially formulated coating used to protect circuit boards and related equipment from environmental erosion, thereby improving and extending the service life of circuit boards and ensuring safety and reliability in use.

[0003] After using a brush to apply conformal coating to the circuit board, the brush should be cleaned promptly with a diluent to reduce the harm of the conformal coating to the human body and facilitate the next use of the brush. Utility Model Content

[0004] The utility model aims to solve the problem raised in the background technology and to provide a surface coating mechanism for circuit board production.

[0005] The purpose of the utility model can be achieved through the following technical scheme: a surface coating mechanism for circuit board production, comprising a base, on which a coating component and a cleaning component are fixedly arranged, and the coating component is arranged on one side of the cleaning component.

[0006] The coating assembly comprises a reciprocating unit and a workbench for placing a circuit board, and a coating brush for coating the circuit board with a conformal coating is rotatably mounted on the output end of the reciprocating unit.

[0007] The cleaning assembly includes a cleaning tank for cleaning the coating brush, a driving unit for controlling the reciprocating rotation of the coating brush, and a lifting unit. The output end of the lifting unit is fixedly connected to the cleaning tank, a gear is coaxially fixed on the coating brush, and the output end of the driving unit is fixedly connected to a rack, and the gear cooperates with the rack.

[0008] Preferably, the coating assembly also includes a liquid storage tank, a support rod is fixedly provided on the base, the liquid storage tank is slidably connected to the support rod, a discharge pipe is fixedly connected to the liquid storage tank, the coating brush is connected to the liquid storage tank through the discharge pipe, the coating brush is provided with a discharge port and bristles.

[0009] Preferably, the reciprocating unit includes a motor 1, a screw rod and a connecting rod 1, the motor 1 is fixedly arranged on the base, the screw rod is coaxially fixedly installed on the output shaft of the motor 1, the connecting rod 1 is threadedly connected to the screw rod, and the coating brush is rotatably connected to an end of the connecting rod 1 away from the screw rod.

[0010] The base is symmetrically and fixedly provided with pillars, a cross bar is fixedly connected between two of the pillars, and the coating brush is slidably connected to the cross bar.

[0011] Preferably, the driving unit includes a second motor, a sliding rod, a lever for controlling the sliding of the sliding rod, and a spring. The second motor is fixedly arranged on a side of the base away from the workbench. The lever is fixedly arranged on the output shaft of the second motor. A sliding groove is provided on the base. The sliding rod is slidably arranged in the sliding groove. One end of the spring is fixedly arranged in the sliding groove, and the other end is fixedly connected to the sliding rod.

[0012] Preferably, the lifting unit includes a hydraulic rod, two connecting rods and a mounting plate. Two mounting plates and two hydraulic rods are provided, and the mounting plates and the hydraulic rods are symmetrically fixed on both sides of the base. Two connecting rods are provided, and the two connecting rods are respectively slidably provided on the two mounting plates, and the two connecting rods are respectively fixedly connected to the output ends of the two hydraulic rods, and the cleaning pool is fixedly provided between the two connecting rods.

[0013] Preferably, the workbench is symmetrically fixed with limit blocks for limiting the position of the circuit board, and a plurality of legs are fixedly provided on a side of the workbench away from the limit blocks, and the workbench is fixedly connected to the base through the legs.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is provided with a cleaning component. After the coating brush coats the circuit board surface with the three-proof paint, the coating brush needs to be cleaned. The motor controls the connecting rod one threadedly connected to the screw rod to drive the coating brush to move, so that the coating brush moves to above the cleaning pool. The hydraulic rod pushes the connecting rod two to rise, so that the cleaning pool rises. The diluent for cleaning the coating brush is injected into the cleaning pool. The coating brush moves to the gear and the rack are meshed, and then the motor two is started. The motor two controls the coating brush to rotate back and forth, so that the three-proof paint attached to the bristles of the coating brush is cleaned off by the diluent in time, thereby reducing the harm of the three-proof paint to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of a surface coating mechanism for circuit board production according to the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 3 The utility model is a schematic diagram of the overall structure of a coating brush cleaning a surface coating mechanism used in circuit board production.

[0019] In the figure:

[0020] 1. Base; 2. Coating assembly; 3. Cleaning assembly; 4. Reciprocating unit; 5. Workbench; 6. Coating brush; 7. Cleaning tank; 8. Driving unit; 9. Lifting unit; 10. Gear; 11. Rack; 12. Liquid storage tank; 13. Support rod; 14. Discharge pipe; 15. Motor 1; 16. Screw rod; 17. Connecting rod 1; 18. Pillar; 19. Cross bar; 20. Motor 2; 21. Sliding rod; 22. Push rod; 23. Spring; 24. Hydraulic rod; 25. Connecting rod 2; 26. Mounting plate; 27. Limit block; 28. Leg; 29. ​​Valve. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 As shown, a surface coating mechanism for circuit board production includes a base 1, on which a coating component 2 and a cleaning component 3 are fixedly arranged, and the coating component 2 is arranged on one side of the cleaning component 3.

[0023] The coating assembly 2 includes a reciprocating unit 4 and a workbench 5 for placing a circuit board. The output end of the reciprocating unit 4 is rotatably installed with a coating brush 6 for coating the circuit board with a three-proof paint. The coating assembly 2 also includes a liquid storage tank 12. A support rod 13 is fixedly arranged on the base 1. The liquid storage tank 12 is slidably connected to the support rod 13. A discharge pipe 14 is fixedly connected to the liquid storage tank 12. A valve 29 is fixedly arranged on the coating brush 6. The valve 29 is used to control the three-proof paint in the discharge pipe 14 to flow into the coating brush 6. When the circuit board is coated with the three-proof paint, the valve 29 is opened. When the coating brush 6 is cleaned, the valve 29 is closed. The coating brush 6 is connected to the liquid storage tank 12 through the discharge pipe 14. A discharge port is opened on the coating brush 6 and bristles are arranged on the coating brush 6.

[0024] The reciprocating unit 4 includes a motor 15, a screw 16 and a connecting rod 17. The motor 15 is fixedly arranged on the base 1, and the screw 16 is coaxially fixedly installed on the output shaft of the motor 15. The connecting rod 17 is threadedly connected to the screw 16. The coating brush 6 is rotatably connected to the end of the connecting rod 17 away from the screw 16. Pillars 18 are symmetrically fixedly arranged on the base 1, and a cross bar 19 is fixedly connected between the two pillars 18. The coating brush 6 is slidably connected to the cross bar 19. When the circuit board is coated with a three-proof paint, the moving range of the connecting rod 17 is controlled by the screw 16 on the workbench 5. When the coating brush 6 is cleaned after the coating is completed, the screw 16 controls the connecting rod 17 to drive the coating brush 6 to move to the top of the cleaning tank 7.

[0025] The cleaning assembly 3 includes a cleaning tank 7 for cleaning the coating brush 6, a driving unit 8 for controlling the reciprocating rotation of the coating brush 6, and a lifting unit 9. The output end of the lifting unit 9 is fixedly connected to the cleaning tank 7. A gear 10 is coaxially fixedly arranged on the coating brush 6. The output end of the driving unit 8 is fixedly connected to a rack 11. The gear 10 cooperates with the rack 11. The driving unit 8 includes a motor 20, a sliding rod 21, a lever 22 for controlling the sliding of the sliding rod 21, and a spring 23. The motor 20 is fixedly arranged at the far end of the base 1. On the side away from the workbench 5, the lever 22 is fixedly arranged on the output shaft of the motor 20, a slide groove is opened on the base 1, and the sliding rod 21 is slidably arranged in the slide groove. One end of the spring 23 is fixedly arranged in the slide groove, and the other end is fixedly connected to the sliding rod 21. When the gear 10 is engaged with the rack 11, the rack 11 slides and drives the gear 10 to rotate back and forth, that is, drives the coating brush 6 to swing and clean in the cleaning tank 7, so that the three-proof paint adhered to the coating brush 6 is thrown off and thrown into the diluent, so that the cleaning effect of the coating brush 6 is better.

[0026] The lifting unit 9 includes a hydraulic rod 24, a connecting rod 25 and a mounting plate 26. Two mounting plates 26 and two hydraulic rods 24 are provided, and the mounting plates 26 and the hydraulic rods 24 are symmetrically fixedly provided on both sides of the base 1. Two connecting rods 25 are provided, and the two connecting rods 25 are respectively slidably provided on the two mounting plates 26, and the two connecting rods 25 are respectively fixedly connected to the output ends of the two hydraulic rods 24. The cleaning pool 7 is fixedly provided between the two connecting rods 25. The lifting unit 9 drives the cleaning pool 7 to rise so that the bristles of the coating brush 6 are immersed in the diluent, and at the same time, it also prevents the coating brush 6 from being thrown to multiple places when it is swung left and right for cleaning, causing pollution and waste.

[0027] The workbench 5 is symmetrically fixed with limit blocks 27 for limiting the position of the circuit board. The limit blocks 27 limit the position of the circuit board so that the entire circuit board can be covered by the lower surface of the coating brush 6. A plurality of legs 28 are fixedly provided on one side of the workbench 5 away from the limit blocks 27. The workbench 5 is fixedly connected to the base 1 through the legs 28.

[0028] When the utility model is in use, the circuit board to be coated with three-proof paint is placed between the two limit blocks 27 on the workbench 5, and then the valve 29 is opened to allow the three-proof paint to flow from the liquid storage tank 12 to the coating brush 6, and then flow out to the circuit board through the discharge port opened on the coating brush 6. The motor 15 controls the screw rod 16 to rotate, and the connecting rod 17 threadedly connected on the screw rod 16 drives the coating brush 6 to slide relative to the cross bar 19, so that the coating brush 6 contacts every place on the upper surface of the circuit board, and the three-proof paint is evenly applied on the surface of the circuit board. After the coating is completed, the coating brush 6 needs to be cleaned, and the motor 15 controls the screw rod 16 to rotate, and the connecting rod 17 on the screw rod 16 drives the coating brush 6 Move to the top of the cleaning pool 7, at this time the gear 10 is meshed with the rack 11, the hydraulic rod 24 is started, the hydraulic rod 24 drives the cleaning pool 7 to rise, so that the bristles of the coating brush 6 are immersed in the diluent, and the motor 20 is started. The motor 20 controls the rotation of the lever 22, and the lever 22 drives the sliding rod 21 to slide in the slide groove, so that the spring 23 is extended. When the lever 22 drives the sliding rod 21 to the farthest position of the slide groove relative to the spring 23, the lever 22 just does not abut against the sliding rod 21. At this time, the spring 23 contracts, so that the sliding rod 21 returns to its initial position, waiting for the next rotation of the lever 22 to drive the sliding rod 21 to slide, thereby realizing the reciprocating swing of the coating brush 6, promoting the coating brush 6 to clean, and making the cleaning more thorough.

[0029] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A surface coating mechanism for circuit board production, comprising a base (1), characterized in that: A coating component (2) and a cleaning component (3) are fixedly arranged on the base (1), and the coating component (2) is arranged on one side of the cleaning component (3); The coating assembly (2) comprises a reciprocating unit (4) and a workbench (5) for placing a circuit board, and a coating brush (6) for coating the circuit board with conformal coating is rotatably mounted at the output end of the reciprocating unit (4); The cleaning component (3) comprises a cleaning tank (7) for cleaning a coating brush (6), a driving unit (8) for controlling the reciprocating rotation of the coating brush (6), and a lifting unit (9), wherein the output end of the lifting unit (9) is fixedly connected to the cleaning tank (7), a gear (10) is coaxially fixedly arranged on the coating brush (6), the output end of the driving unit (8) is fixedly connected to a rack (11), and the gear (10) cooperates with the rack (11).

2. A surface coating mechanism for circuit board production according to claim 1, characterized in that: The coating assembly (2) further comprises a liquid storage tank (12), a support rod (13) is fixedly arranged on the base (1), the liquid storage tank (12) is slidably connected to the support rod (13), a discharge pipe (14) is fixedly connected to the liquid storage tank (12), the coating brush (6) is connected to the liquid storage tank (12) via the discharge pipe (14), a discharge port is provided on the coating brush (6), and bristles are arranged on the coating brush (6).

3. A surface coating mechanism for circuit board production according to claim 1, characterized in that: The reciprocating unit (4) comprises a motor (15), a screw (16) and a connecting rod (17), wherein the motor (15) is fixedly arranged on the base (1), the screw (16) is coaxially fixedly mounted on the output shaft of the motor (15), the connecting rod (17) is threadedly connected to the screw (16), and the coating brush (6) is rotatably connected to an end of the connecting rod (17) away from the screw (16); The base (1) is symmetrically fixedly provided with pillars (18), a cross bar (19) is fixedly connected between two of the pillars (18), and the coating brush (6) is slidably connected to the cross bar (19).

4. A surface coating mechanism for circuit board production according to claim 1, characterized in that: The driving unit (8) comprises a second motor (20), a sliding rod (21), a lever (22) for controlling the sliding of the sliding rod (21), and a spring (23); the second motor (20) is fixedly arranged on a side of the base (1) away from the workbench (5); the lever (22) is fixedly arranged on the output shaft of the second motor (20); a sliding groove is provided on the base (1); the sliding rod (21) is slidably arranged in the sliding groove; one end of the spring (23) is fixedly arranged in the sliding groove, and the other end is fixedly connected to the sliding rod (21).

5. A surface coating mechanism for circuit board production according to claim 1, characterized in that: The lifting unit (9) comprises a hydraulic rod (24), a second connecting rod (25) and a mounting plate (26). Two mounting plates (26) and two hydraulic rods (24) are provided, and the mounting plates (26) and the hydraulic rods (24) are symmetrically fixedly provided on both sides of the base (1). Two second connecting rods (25) are provided, and the two second connecting rods (25) are respectively slidably provided on the two mounting plates (26), and the two second connecting rods (25) are respectively fixedly connected to the output ends of the two hydraulic rods (24), and the cleaning tank (7) is fixedly provided between the two second connecting rods (25).

6. A surface coating mechanism for circuit board production according to claim 1, characterized in that: The workbench (5) is symmetrically fixedly provided with limit blocks (27) for limiting the position of the circuit board, and a plurality of legs (28) are fixedly provided on a side of the workbench (5) away from the limit blocks (27), and the workbench (5) and the base (1) are fixedly connected via the legs (28).

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