Wet chemical treatment equipment for printed circuit board

Abstract

The utility model discloses wet chemical treatment equipment for a printed circuit board, which relates to the field of wet chemical treatment of the printed circuit board and comprises an equipment body, lifting components are symmetrically mounted at two ends of the left side of the top of the equipment body, and triangular plates are symmetrically and movably connected to the top and the bottom of an inner cavity of a reinforcing component. Displacement assemblies are symmetrically and movably connected to the two sides of an inner cavity of the reinforcing assembly, racks are symmetrically mounted at the two ends of the bottom of the mounting assembly, and brush rollers are arranged on the side edges of the racks. According to the wet chemical treatment equipment for the printed circuit board and the use method of the wet chemical treatment equipment, the rack can be driven to move up and down through the mounting assembly which moves up and down, and the rack can be meshed with the gear at the moment, so that the brush roller can rotate and can be in contact with the bottom of the printed circuit board, and the wet chemical treatment efficiency of the printed circuit board is improved. When the wet chemical treatment is carried out on the printed circuit board, the treatment efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of wet chemical treatment of printed circuit boards, and in particular to a wet chemical treatment device for printed circuit boards. Background Technology

[0002] PCB, or Printed Circuit Board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical connections. Because it is manufactured using electronic printing techniques, it is called a "printed" circuit board.

[0003] Printed circuit boards require wet chemical treatment during processing. However, the processing of printed circuit boards generates a lot of contaminants. Direct wet chemical treatment will affect the processing accuracy. But if contaminant removal is performed, it will waste a lot of time for transfer and processing, which will affect the overall processing efficiency.

[0004] Therefore, it is necessary to propose a wet chemical treatment device for printed circuit boards and its usage method to solve the above problems. Utility Model Content

[0005] The main objective of this invention is to provide a wet chemical treatment device for printed circuit boards, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A wet chemical treatment device for printed circuit boards includes a device body, with lifting components symmetrically installed at both ends of the top left side of the device body, and an installation component movably connected to the inner cavity of the device body.

[0008] The mounting component has symmetrically and movably connected reinforcing components at both ends of its inner cavity. Triangular plates are symmetrically and movably connected to the top and bottom of the inner cavity of the reinforcing component. Displacement components are symmetrically and movably connected to both sides of the inner cavity of the reinforcing component. Racks are symmetrically installed at both ends of the bottom of the mounting component. Brush rollers are provided on the sides of the racks.

[0009] A stirring tank is rotatably connected to the top of the inner cavity of the device body, and a soft brush is installed on the side of the stirring tank.

[0010] Preferably, an infusion pipe is installed on the top of the outer wall of the device body, and a drain pipe is installed on the bottom of the outer wall of the device body. Both the drain pipe and the infusion pipe are flanged and connected to valves. A sealing plate is installed on the right side of the device body.

[0011] Preferably, a drive motor is installed in the inner cavity of the lifting assembly. A winding roller is installed on the right side of the drive motor via a coupling. A connecting nylon is installed on the outer wall of the winding roller. The connecting nylon is wound around the outer wall of the winding roller. The bottom of the connecting nylon passes through the top of the equipment body and is installed on the left side of the top of the mounting assembly. Movable blocks are symmetrically installed at both ends of the right side of the mounting assembly. A bonding wheel is rotatably connected to the right side of the inner cavity of the movable block. The movable block and the bonding wheel are movably connected to the right side of the inner cavity of the equipment body. A guide rod is installed on the right side of the inner cavity of the equipment body. The movable block is sleeved on the outer wall of the guide rod.

[0012] Preferably, the mounting components have symmetrically formed shrinkage grooves on both sides, a fixing post is installed in the inner cavity of the shrinkage groove, a shrinkage spring is wound around the center of the outer wall of the fixing post, the two ends of the reinforcing components are movably connected in the inner cavity of the shrinkage groove and sleeved on the outer wall of the fixing post, and the two ends of the shrinkage spring are symmetrically installed on the opposite side of the two reinforcing components.

[0013] Preferably, the top and bottom of the inner cavity of the reinforcing component are symmetrically fixedly connected with strong springs, and the other end of the strong springs is installed on the outer wall of the triangular plate.

[0014] Preferably, a displacement block is installed at one end of the displacement component, the displacement block is movably connected in the inner cavity of the reinforcement component, a lead screw is rotatably connected in the inner cavity of the reinforcement component, the displacement block is threaded to the outer wall of the lead screw, and a servo motor is installed at one end of the reinforcement component, the servo motor is connected to the lead screw through a rotating shaft.

[0015] Preferably, the bottom of the rack is movably connected to the bottom of the inner cavity of the device body, gears are symmetrically installed at both ends of the brush roller, the gears mesh with the rack, and bearing seats are also installed at both ends of the brush roller, with the top of the bearing seats installed at the bottom of the mounting assembly.

[0016] Preferably, the mixing tank has a hollow structure, and the outer wall of the mixing tank has a through groove.

[0017] Preferably, a chain is installed in the inner cavity of the device body, a sprocket is installed in the inner cavity of the chain, the sprocket is connected to the mixing tank, and a drive motor is installed on the outer wall of the device body. The drive motor is installed on the outer wall of one of the sprockets through a second rotating shaft.

[0018] A method for using a wet chemical treatment device for printed circuit boards includes the following steps:

[0019] S1: Open the sealing plate, prepare the printed circuit board, separate the two reinforcing components, move the sides of the reinforcing components in the inner cavity of the shrinkage groove, place the printed circuit board between the two reinforcing components, insert its two ends into the inner cavity of the reinforcing components, the two ends of the printed circuit board will open the top and bottom triangular plates, when the two ends of the printed circuit board are fully inserted into the inner cavity of the reinforcing components, release the reinforcing components, so that the shrinkage spring can drive the reinforcing components to shrink, so that the reinforcing components and triangular plates can position the printed circuit board;

[0020] S2: Close the sealing plate, and input the material for wet chemical treatment of the printed circuit board into the inner cavity of the equipment body through the infusion tube. Start the chain so that the sprocket can drive the mixing tank to rotate. When the mixing tank rotates, it will drive the soft brush to rotate. After the soft brush comes into contact with the printed circuit board, it can improve the efficiency of its chemical treatment. Through the opened through groove, it can play a turbulence effect on the material in the inner cavity of the equipment body.

[0021] S3: When the printed circuit board is a certain distance from the soft brush, start the drive motor and drive the connecting nylon to move up and down through the winding roller, so that the mounting component can drive the printed circuit board to move up and down. When the mounting component moves, it will drive the right movable block and the bonding wheel to move in the inner cavity of the equipment body and the outer wall of the guide rod.

[0022] S4: The mounting component moves the printed circuit board and moves the rack at its bottom. The rack can then mesh with the gear, allowing the brush roller to rotate. The brush roller can then clean the bottom of the printed circuit board, allowing the material to contact the printed circuit board better and further improving the efficiency of wet chemical treatment of the printed circuit board.

[0023] S5: Start the servo motor at the corresponding position, which can drive the lead screw to rotate, so that the displacement block can be threaded with the lead screw. Based on this, the displacement component in the inner cavity of the reinforcement component can move laterally. The two displacement components in the inner cavity of each reinforcement component can move freely. During the wet chemical treatment of the printed circuit board, the two sides of the printed circuit board can be clamped, and the printed circuit board can also be moved left and right to increase the contact area between the printed circuit board and the soft brush and brush roller.

[0024] Compared with the prior art, this utility model provides a wet chemical treatment device for printed circuit boards and its usage method, which has the following beneficial effects:

[0025] 1. The wet chemical treatment equipment for printed circuit boards and its usage method, by starting the set drive motor, can drive the winding roller to rotate, so that the winding roller can drive the mounting components to move up and down through the connecting nylon. When performing wet chemical treatment on printed circuit boards, the height and position of the printed circuit boards can be adjusted according to the usage requirements. Through the set liquid inlet pipe and liquid outlet pipe, the materials for wet chemical treatment can be loaded and unloaded.

[0026] 2. The wet chemical treatment equipment for printed circuit boards and its usage method, through the set retraction spring, can retract the two reinforcing components to the opposite side, so that the reinforcing components can be adapted to the size of the printed circuit board for positioning. Through the set strong spring, the triangular plate can be driven to move. After one end of the printed circuit board enters the inner cavity of the reinforcing component, the top and bottom triangular plates can clamp and position it, thereby improving the tightness of the positioning of the printed circuit board.

[0027] 3. The wet chemical treatment equipment for printed circuit boards and its usage method, by activating the servo motor, can drive the lead screw to rotate, so that the displacement block can be threadedly connected to the lead screw, allowing the displacement component to move left and right within the cavity of the reinforcement component. When the displacement components on both sides move to opposite sides, the printed circuit board can continue to be reinforced. When the displacement components on both sides move in the same direction, the printed circuit board can be moved to one side. During wet chemical treatment, the contact area between the printed circuit board and the brush roller and soft brush can be increased.

[0028] 4. The wet chemical treatment equipment for printed circuit boards and its usage method, through the up-and-down moving mounting components, can drive the rack to move up and down. At this time, the rack can mesh with the gear, so that the brush roller can rotate and make contact with the bottom of the printed circuit board, thereby improving the processing efficiency when the printed circuit board is wet chemically treated.

[0029] 5. The wet chemical treatment equipment for printed circuit boards and its usage method, by activating the set chain and sprocket, can drive the mixing tank to rotate, and the mixing tank can drive the soft brush to treat the top of the printed circuit board, thereby improving the efficiency and accuracy of wet chemical treatment. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the internal cavity of the device body of this utility model;

[0032] Figure 3 This is a schematic diagram of the installation component of this utility model;

[0033] Figure 4 This is a utility model Figure 3 Enlarged view of point A in the middle;

[0034] Figure 5 This is a schematic diagram of the displacement component of this utility model;

[0035] Figure 6 This is a schematic diagram of the structure of the brush roller of this utility model;

[0036] Figure 7 This is a schematic diagram of the structure of the mixing tank of this utility model.

[0037] In the diagram: 1. Equipment body; 2. Lifting assembly; 3. Drive motor; 4. Winding roller; 5. Sealing plate; 6. Drain pipe; 7. Infusion pipe; 8. Connecting nylon; 9. Mixing tank; 10. Through groove; 11. Soft brush; 12. Chain; 13. Sprocket; 14. Mounting assembly; 15. Movable block; 16. Adhesive wheel; 17. Guide rod; 18. Mounting groove; 19. Shrinkage groove; 20. Fixed column; 21. Shrinkage spring; 22. Reinforcing assembly; 23. Strong spring; 24. Triangular plate; 25. Displacement assembly; 26. Displacement block; 27. Lead screw; 28. Servo motor; 29. ​​Rack; 30. Gear; 31. Bearing seat; 32. Brush roller. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0039] Example 1:

[0040] like Figure 1 , Figure 2As shown, a wet chemical treatment device for printed circuit boards includes a device body 1. Lifting assemblies 2 are symmetrically installed at both ends of the top left side of the device body 1. An installation assembly 14 is movably connected to the inner cavity of the device body 1. An infusion pipe 7 is installed on the top of the outer wall of the device body 1, and a drain pipe 6 is installed on the bottom of the outer wall of the device body 1. Valves are flanged to the outer walls of both the drain pipe 6 and the infusion pipe 7. A sealing plate 5 is installed on the right side of the device body 1. A drive motor 3 is installed in the inner cavity of the lifting assembly 2. A coupling is installed on the right side of the drive motor 3. A winding roller 4 has a connecting nylon 8 installed on its outer wall. The connecting nylon 8 is wound around the outer wall of the winding roller 4. The bottom of the connecting nylon 8 passes through the top of the equipment body 1 and is installed on the left side of the top of the mounting assembly 14. Movable blocks 15 are symmetrically installed at both ends of the right side of the mounting assembly 14. A bonding wheel 16 is rotatably connected to the right side of the inner cavity of the movable block 15. The movable block 15 and the bonding wheel 16 are movably connected to the right side of the inner cavity of the equipment body 1. A guide rod 17 is installed on the right side of the inner cavity of the equipment body 1. The movable block 15 is sleeved on the outer wall of the guide rod 17.

[0041] By activating the drive motor 3, the winding roller 4 can be rotated, which in turn drives the mounting assembly 14 to move up and down through the connecting nylon 8. When performing wet chemical treatment on the printed circuit board, the height and position of the printed circuit board can be adjusted according to the usage requirements. The materials for wet chemical treatment can be loaded and unloaded through the infusion pipe 7 and the drainage pipe 6.

[0042] Example 2:

[0043] like Figure 1 , Figures 3-6As shown, a wet chemical treatment device for printed circuit boards includes a mounting assembly 14 with reinforcing components 22 symmetrically and movably connected to both ends of the inner cavity. Triangular plates 24 are symmetrically and movably connected to the top and bottom of the inner cavity of the reinforcing components 22. Displacement components 25 are symmetrically and movably connected to both sides of the inner cavity of the reinforcing components 22. Gear racks 29 are symmetrically mounted at both ends of the bottom of the mounting assembly 14, and brush rollers 32 are provided on the sides of the gear racks 29. Shrinkage grooves 19 are symmetrically formed in the center of both sides of the mounting assembly 14. Fixing posts 20 are installed in the inner cavity of the shrinkage grooves 19, and shrinkage springs 21 are wound around the center of the outer wall of the fixing posts 20. The two ends of the reinforcing components 22 are movably connected to the inner cavity of the shrinkage grooves 19 and fitted onto the outer wall of the fixing posts 20. The two ends of the shrinkage springs 21 are symmetrically mounted on opposite sides of the two reinforcing components 22. A strong spring 23 is symmetrically fixedly connected to the top and bottom of the inner cavity of the reinforcing component 22. The other end of the strong spring 23 is installed on the outer wall of the triangular plate 24. A displacement block 26 is installed at one end of the displacement component 25. The displacement block 26 is movably connected in the inner cavity of the reinforcing component 22. A lead screw 27 is rotatably connected in the inner cavity of the reinforcing component 22. The displacement block 26 is threaded to the outer wall of the lead screw 27. A servo motor 28 is installed at one end of the reinforcing component 22. The servo motor 28 is connected to the lead screw 27 through a rotating shaft. The bottom of the rack 29 is movably connected to the bottom of the inner cavity of the equipment body 1. Gears 30 are symmetrically installed at both ends of the brush roller 32. The gears 30 mesh with the rack 29. Bearing seats 31 are also installed at both ends of the brush roller 32. The top of the bearing seats 31 is installed at the bottom of the mounting component 14.

[0044] By using the retraction spring 21, the two reinforcing components 22 can be retracted to the opposite side, so that the reinforcing components 22 can be adapted to the size of the printed circuit board for positioning. By using the strong spring 23, the triangular plate 24 can be moved. After one end of the printed circuit board enters the inner cavity of the reinforcing component 22, the top and bottom triangular plates 24 can clamp and position it, thereby improving the tightness of the printed circuit board positioning.

[0045] By activating the servo motor 28, the lead screw 27 can be rotated, so that the displacement block 26 can be threadedly connected to the lead screw 27, and the displacement component 25 can move left and right in the inner cavity of the reinforcement component 22. When the two displacement components 25 on both sides move to the opposite side, the printed circuit board can continue to be reinforced. When the two displacement components 25 on both sides move in the same direction, the printed circuit board can be moved to one side. During wet chemical treatment, the contact area between the printed circuit board and the brush roller 32 and the soft brush 11 can be increased.

[0046] The mounting assembly 14, which moves up and down, can drive the rack 29 to move up and down. The rack 29 can then mesh with the gear 30, allowing the brush roller 32 to rotate and contact the bottom of the printed circuit board. This improves the efficiency of wet chemical treatment of the printed circuit board.

[0047] Example 3:

[0048] like Figure 1 , Figure 2 , Figure 7 As shown, a wet chemical treatment device for printed circuit boards has a stirring tank 9 rotatably connected to the top of the inner cavity of the device body 1. A soft brush 11 is installed on the side of the stirring tank 9. The stirring tank 9 has a hollow structure and a through groove 10 is opened on the outer wall of the stirring tank 9. A chain 12 is installed in the inner cavity of the device body 1, and a sprocket 13 is installed in the inner cavity of the chain 12. The sprocket 13 is connected to the stirring tank 9. A drive motor is installed on the outer wall of the device body 1. The drive motor is installed on the outer wall of one of the sprockets 13 through a second rotating shaft.

[0049] By activating the set chain 12 and sprocket 13, the mixing tank 9 can be driven to rotate, and the mixing tank 9 can drive the soft brush 11 to treat the top of the printed circuit board, thereby improving the efficiency and accuracy of wet chemical treatment.

[0050] A method for using a wet chemical treatment device for printed circuit boards includes the following steps:

[0051] S1: Open the sealing plate 5, prepare the printed circuit board, separate the two reinforcing components 22, move the side of the reinforcing component 22 in the inner cavity of the shrinkage groove 19, place the printed circuit board between the two reinforcing components 22, insert its two ends into the inner cavity of the reinforcing component 22, the two ends of the printed circuit board will open the top and bottom triangular plates 24, when the two ends of the printed circuit board are completely inserted into the inner cavity of the reinforcing component 22, release the reinforcing component 22, so that the shrinkage spring 21 can drive the reinforcing component 22 to shrink, so that the reinforcing component 22 and the triangular plate 24 can position the printed circuit board.

[0052] S2: Close the sealing plate 5, and input the material for wet chemical treatment of the printed circuit board into the inner cavity of the equipment body 1 through the infusion tube 7. Start the chain 12 so that the sprocket 13 can drive the stirring tank 9 to rotate. When the stirring tank 9 rotates, it will drive the soft brush 11 to rotate. After the soft brush 11 contacts the printed circuit board, it can improve the efficiency of its chemical treatment. Through the through groove 10, it can play a turbulence effect on the material in the inner cavity of the equipment body 1.

[0053] S3: When the printed circuit board is a certain distance away from the soft brush 11, start the drive motor 3, and drive the connecting nylon 8 to move up and down through the winding roller 4, so that the mounting component 14 can drive the printed circuit board to move up and down. When the mounting component 14 moves, it will drive the right movable block 15 and the bonding wheel 16 to move in the inner cavity of the equipment body 1 and the outer wall of the guide rod 17.

[0054] S4: When the mounting component 14 moves the printed circuit board, it will also move the rack 29 at its bottom. The rack 29 can then mesh with the gear 30, allowing the brush roller 32 to rotate. The brush roller 32 can then clean the bottom of the printed circuit board, allowing the material to contact the printed circuit board better and further improving the efficiency of wet chemical treatment of the printed circuit board.

[0055] S5: Start the servo motor 28 at the corresponding position, which can drive the lead screw 27 to rotate, so that the displacement block 26 can be threadedly connected to the lead screw 27. Based on this, the displacement component 25 in the inner cavity of the reinforcement component 22 can move laterally. The two displacement components 25 in the inner cavity of each reinforcement component 22 can move freely. During the wet chemical treatment of the printed circuit board, the two sides of the printed circuit board can be clamped, and the printed circuit board can also be moved left and right to increase the contact area between the printed circuit board and the soft brush 11 and the brush roller 32.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A printed circuit board wet chemical processing apparatus comprising an apparatus body (1), characterized in that: The left side of the top of the device body (1) is symmetrically provided with a lifting assembly (2), and the inner cavity of the device body (1) is movably connected with a mounting assembly (14); The inner cavity of the mounting assembly (14) is symmetrically movably connected with a reinforcing assembly (22), the top and bottom of the inner cavity of the reinforcing assembly (22) are symmetrically movably connected with a triangular plate (24), the two sides of the inner cavity of the reinforcing assembly (22) are symmetrically movably connected with a displacement assembly (25), and the two ends of the bottom of the mounting assembly (14) are symmetrically provided with a rack (29), and the side of the rack (29) is provided with a brush roller (32). The top of the inner cavity of the device body (1) is rotatably connected with a stirring barrel (9), and the side of the stirring barrel (9) is provided with a soft brush (11).

2. A printed circuit board wet chemical processing apparatus as defined in claim 1, characterized in that: The top of the outer wall of the device body (1) is provided with a liquid inlet pipe (7), the bottom of the outer wall of the device body (1) is provided with a liquid outlet pipe (6), the outer walls of the liquid outlet pipe (6) and the liquid inlet pipe (7) are flange-connected with valves, and the right side of the device body (1) is provided with a sealing plate (5).

3. A printed circuit board wet chemical processing apparatus as defined in claim 1, wherein: The inner cavity of the lifting assembly (2) is provided with a driving motor (3), the right side of the driving motor (3) is connected with a winding roller (4) through a shaft, the outer wall of the winding roller (4) is provided with a connecting nylon (8), the connecting nylon (8) is wound on the outer wall of the winding roller (4), the bottom of the connecting nylon (8) penetrates through the top of the device body (1) and is mounted on the left side of the top of the mounting assembly (14), the right side of the mounting assembly (14) is symmetrically provided with a movable block (15), the right side of the inner cavity of the movable block (15) is rotatably connected with a matching wheel (16), and the movable block (15) and the matching wheel (16) are movably connected on the right side of the inner cavity of the device body (1). The right side of the inner cavity of the device body (1) is provided with a guide rod (17), and the movable block (15) is sleeved on the outer wall of the guide rod (17).

4. A printed circuit board wet chemical processing apparatus as defined in claim 1, wherein: The central part of the two sides of the mounting assembly (14) is symmetrically provided with a contraction groove (19), the inner cavity of the contraction groove (19) is provided with a fixed column (20), the outer wall of the fixed column (20) is symmetrically provided with a contraction spring (21), and the two ends of the contraction spring (21) are symmetrically provided on the side opposite to the two reinforcing assemblies (22).

5. A printed circuit board wet chemical processing apparatus as defined in claim 1, wherein: The top and bottom of the inner cavity of the reinforcing assembly (22) are symmetrically fixedly connected with a strong spring (23), and the other end of the strong spring (23) is mounted on the outer wall of the triangular plate (24).

6. A printed circuit board wet chemical processing apparatus as defined in claim 1, wherein: One end of the displacement assembly (25) is provided with a displacement block (26), the displacement block (26) is movably connected in the inner cavity of the reinforcing assembly (22), a lead screw (27) is rotatably connected in the inner cavity of the reinforcing assembly (22), the displacement block (26) is threadedly connected on the outer wall of the lead screw (27), one end of the reinforcing assembly (22) is provided with a servo motor (28), and the servo motor (28) is connected with the lead screw (27) through a rotating shaft.

7. A printed circuit board wet chemical processing apparatus as defined in claim 1, wherein: The bottom of the rack (29) is movably connected to the bottom of the inner cavity of the device body (1), both ends of the brush roller (32) are symmetrically provided with gears (30), the gears (30) are engaged with the rack (29), both ends of the brush roller (32) are also provided with bearing seats (31), and the top of the bearing seat (31) is installed on the bottom of the mounting assembly (14).

8. A printed circuit board wet chemical processing apparatus as defined in claim 1, wherein: The stirring barrel (9) is a hollow structure, and a through groove (10) is formed in the outer wall of the stirring barrel (9).

9. A printed circuit board wet chemical processing apparatus as defined in claim 1, wherein: A chain (12) is installed in the inner cavity of the device body (1), a sprocket (13) is installed in the inner cavity of the chain (12), the sprocket (13) is connected with the stirring barrel (9), a driving motor is installed on the outer wall of the device body (1), and the driving motor is installed on the outer wall of one of the sprockets (13) through a second rotating shaft.

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