A printed circuit board wet chemical processing apparatus and method of use thereof

Abstract

The application discloses a kind of printed circuit board wet chemical treatment equipment and its using method, the present application relates to the field of wet chemical treatment of printed circuit board, including equipment body, the top left side of the equipment body Two ends of symmetry are equipped with lifting assembly, the top and bottom of the inner cavity of reinforcing assembly are symmetrically movably connected with triangular plate, the two sides of the inner cavity of reinforcing assembly are symmetrically movably connected with displacement assembly, the two ends of installation component bottom are symmetrically installed with rack, and the side of rack is provided with brush roller.The printed circuit board wet chemical treatment equipment and its using method of the application, by the installation component of up and down movement, can drive rack to move up and down, rack can be engaged with gear at this time, so that brush roller can rotate, so that brush roller can contact the bottom of printed circuit board, when wet chemical treatment is carried out to printed circuit board, the efficiency of processing can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wet chemical treatment of printed circuit boards, in particular to a wet chemical treatment device for printed circuit boards and a method of using the same. BACKGROUND

[0002] PCB, the Chinese name for printed circuit board, is also known as printed wiring board, is an important electronic component, is the support of electronic components, and is the carrier of electrical connection of electronic components. Since it is made by electronic printing, it is called "printed" circuit board.

[0003] When the printed circuit board is processed, it needs to be wet chemically treated, but the printed circuit board will generate a lot of dirt during processing. Directly wet chemical treatment will affect the processing accuracy, but the dirt removal treatment will waste a lot of time for transfer and treatment, which will affect the overall processing efficiency.

[0004] Therefore, it is necessary to provide a wet chemical treatment device for printed circuit boards and a method of using the same to solve the above problems. SUMMARY

[0005] The main purpose of the present application is to provide a wet chemical treatment device for printed circuit boards and a method of using the same, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical scheme adopted by the present application is:

[0007] A wet chemical treatment device for printed circuit boards, comprising a device body, two ends of the left side of the top of the device body are symmetrically provided with lifting assemblies, and an installation assembly is movably connected in the inner cavity of the device body;

[0008] Two ends of the inner cavity of the installation assembly are symmetrically movably connected with reinforcing assemblies, the top and bottom of the inner cavity of the reinforcing assembly are symmetrically movably connected with triangular plates, the two sides of the inner cavity of the reinforcing assembly are symmetrically movably connected with displacement assemblies, and two ends of the bottom of the installation assembly are symmetrically provided with racks, and the side of the rack is provided with a brush roller;

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

[0010] Preferably, a liquid inlet pipe is mounted on the top of the outer wall of the device body, a liquid outlet pipe is mounted on the bottom of the outer wall of the device body, flanges are connected with valves on the outer walls of the liquid outlet pipe and the liquid inlet pipe, and a sealing plate is mounted on the right side of the device body.

[0011] Preferably, a driving motor is installed in the inner cavity of the lifting assembly, the right side of the driving motor is installed with a winding roller through a shaft, the outer wall of the winding roller is installed with a connecting nylon, the connecting nylon is wound on the outer wall of the winding roller, the bottom of the connecting nylon penetrates through the top of the equipment body and is installed on the left side of the top of the mounting assembly, two movable blocks are symmetrically installed at the two ends of the right side of the mounting assembly, a matching wheel is rotatably connected to the right side of the inner cavity of the movable block, the movable block and the matching 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, and the movable block is sleeved on the outer wall of the guide rod.

[0012] Preferably, a fixed column is installed in the inner cavity of the contraction groove which is symmetrically arranged on the two sides of the mounting assembly, a contraction spring is wound in the middle of the outer wall of the fixed column, and the two ends of the contraction spring are symmetrically installed on the opposite sides of the two reinforcing assemblies.

[0013] Preferably, strong springs are fixedly connected to the top and bottom of the inner cavity of the reinforcing assembly, and the other ends of the strong springs are installed on the outer wall of the triangular plate.

[0014] Preferably, a displacement block is installed at one end of the displacement assembly, the displacement block is movably connected in the inner cavity of the reinforcing assembly, a lead screw is rotatably connected in the inner cavity of the reinforcing assembly, the displacement block is threadedly connected to the outer wall of the lead screw, a servo motor is installed at one end of the reinforcing assembly, and the servo motor is connected with 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 equipment body, gears are symmetrically installed at the two ends of the brush roller, the gears are engaged with the rack, bearing seats are further installed at the two ends of the brush roller, and the top of the bearing seat is installed on the bottom of the mounting assembly.

[0016] Preferably, the stirring barrel is a hollow structure, and a through groove is formed in the outer wall of the stirring barrel.

[0017] Preferably, a chain is installed in the inner cavity of the equipment body, a sprocket is installed in the inner cavity of the chain, the sprocket is connected with the stirring barrel, a driving motor is installed on the outer wall of the equipment body, and the driving motor is installed on the outer wall of one of the sprockets through a second rotating shaft.

[0018] A use method of a printed circuit board wet chemical processing equipment, comprising the following operation steps:

[0019] S1, open the sealing plate, prepare the printed circuit board, separate the two reinforcing assemblies, drive the side of the reinforcing assembly to move in the inner cavity of the contraction groove, prevent the printed circuit board between the two reinforcing assemblies, insert the two ends of the printed circuit board into the inner cavity of the reinforcing assembly, the two ends of the printed circuit board will support the top and bottom triangular plates, when the two ends of the printed circuit board are completely inserted into the inner cavity of the reinforcing assembly, loosen the reinforcing assembly, so that the contraction spring can drive the reinforcing assembly to contract, so that the reinforcing assembly and the triangular plate can position the printed circuit board;

[0020] S2, close the sealing plate, input the material for wet chemical treatment of the printed circuit board into the inner cavity of the equipment body through the infusion pipe, start the chain, so that the chain wheel can drive the stirring barrel to rotate, when the stirring barrel rotates, it will drive the soft brush to rotate, after the soft brush contacts the printed circuit board, the chemical treatment efficiency can be improved, and the through groove can disturb the flow of the material in the inner cavity of the equipment body;

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

[0022] S4, the mounting assembly drives the printed circuit board to move at the same time, which drives the rack at the bottom of the printed circuit board to move, the rack can engage with the gear, so that the brush roller can rotate, the brush roller can clean the bottom of the printed circuit board, so that the material can better contact the printed circuit board, and the efficiency of wet chemical treatment of the printed circuit board can be further improved;

[0023] S5, start the servo motor at the corresponding position, drive the lead screw to rotate, so that the displacement block is threadedly connected with the lead screw, based on this, the displacement assembly in the inner cavity of the reinforcing assembly can move horizontally, the two displacement assemblies in the inner cavity of each reinforcing assembly can move freely, when the printed circuit board is wet chemically treated, 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 of the printed circuit board with the soft brush and the brush roller.

[0024] Compared with the prior art, the present application provides a printed circuit board wet chemical treatment equipment and its use method, which has the following beneficial effects:

[0025] 1. The printed circuit board wet chemical treatment equipment and its use method, by starting the driving motor set, the winding roller can be driven to rotate, so that the winding roller can drive the installation assembly to move up and down, and the height and position of the printed circuit board can be adjusted according to the use requirement during the wet chemical treatment of the printed circuit board. Through the setting of the liquid inlet pipe and the liquid outlet pipe, the materials for wet chemical treatment can be handled.

[0026] 2. The printed circuit board wet chemical treatment equipment and its use method, by setting the contraction spring, the two reinforcing assemblies can be contracted to the opposite side, so that the reinforcing assembly can adapt to the size of the printed circuit board and position it. Through the setting of the 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 assembly, the top and bottom triangular plates can clamp and position it. Based on this, the fastening degree of positioning the printed circuit board can be improved.

[0027] 3. The printed circuit board wet chemical treatment equipment and its use method, by starting the servo motor set, the lead screw can be driven to rotate, so that the displacement block can be threadedly connected with the lead screw, so that the displacement assembly can move left and right in the inner cavity of the reinforcing assembly. When the displacement assemblies on both sides move to the opposite side, the printed circuit board can be further reinforced. When the displacement assemblies on both sides move in the same direction, the printed circuit board can be moved to one side. During the wet chemical treatment, the contact area of the printed circuit board with the brush roller and the soft brush can be increased.

[0028] 4. The printed circuit board wet chemical treatment equipment and its use method, the installation assembly can drive the rack to move up and down. The rack can be engaged with the gear at this time, so that the brush roller can rotate, and the brush roller can contact the bottom of the printed circuit board. During the wet chemical treatment of the printed circuit board, the treatment efficiency can be improved.

[0029] 5. The printed circuit board wet chemical treatment equipment and its use method, by starting the chain and sprocket set, the stirring barrel can be driven to rotate, and the soft brush can be driven to treat the top of the printed circuit board, so as to improve the efficiency and precision of the wet chemical treatment. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the structure diagram of the whole of the application;

[0031] Figure 2 It is the structure diagram of the inner cavity of the equipment body of the application;

[0032] Figure 3 It is the structure diagram of the installation assembly of the application;

[0033] Figure 4 is the application Figure 3 is an enlarged view of A in the application;

[0034] Figure 5 is a structural schematic view of the displacement assembly of the application;

[0035] Figure 6 is a structural schematic view of the brush roller of the application;

[0036] Figure 7 is a structural schematic view of the stirring barrel of the application.

[0037] In the figure: 1, device body; 2, lifting assembly; 3, driving motor; 4, winding roller; 5, sealing plate; 6, liquid discharge pipe; 7, liquid delivery pipe; 8, connecting nylon; 9, stirring barrel; 10, through groove; 11, soft brush; 12, chain; 13, chain wheel; 14, mounting assembly; 15, movable block; 16, fitting wheel; 17, guide rod; 18, mounting groove; 19, contraction groove; 20, fixed column; 21, contraction spring; 22, reinforcing assembly; 23, strong spring; 24, triangular plate; 25, displacement assembly; 26, displacement block; 27, screw rod; 28, servo motor; 29, rack; 30, gear; 31, bearing seat; 32, brush roller. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application is further described below in combination with specific embodiments.

[0039] Embodiment one:

[0040] As shown in Figure 1 , Figure 2 , a printed circuit board wet chemical processing device includes a device body 1, two ends of the left side of the top of the device body 1 are symmetrically provided with a lifting assembly 2, a mounting assembly 14 is movably connected in the inner cavity of the device body 1, a liquid delivery pipe 7 is mounted on the top of the outer wall of the device body 1, a liquid discharge pipe 6 is mounted on the bottom of the outer wall of the device body 1, flange connections are provided on the outer walls of the liquid discharge pipe 6 and the liquid delivery pipe 7, a sealing plate 5 is mounted on the right side of the device body 1, a driving motor 3 is mounted in the inner cavity of the lifting assembly 2, a winding roller 4 is mounted on the right side of the driving motor 3 through a shaft coupling, a connecting nylon 8 is mounted on the outer wall of the winding roller 4, 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, movable blocks 15 are symmetrically mounted on the right side of the mounting assembly 14, fitting wheels 16 are rotatably connected to the right side of the inner cavities of the movable blocks 15, the movable blocks 15 and the fitting wheels 16 are movably connected to the right side of the inner cavity of the device body 1, a guide rod 17 is mounted on the right side of the inner cavity of the device body 1, the movable blocks 15 are sleeved on the outer wall of the guide rod 17;

[0041] By starting the drive motor 3 set, can drive winding roller 4 rotation, so that winding roller 4 can be through the connection nylon 8 installation assembly 14 to move up and down, in the process of wet chemical treatment of printed circuit board, can be according to the use requirements of the height and position of printed circuit board adjustment, through the setting of the infusion tube 7 and the drainage pipe 6, can be used for wet chemical treatment of materials to carry on the up and down material processing.

[0042] Example two:

[0043] As Figure 1 , Figures 3-6 shown, a kind of printed circuit board wet chemical treatment equipment, the two ends of the inner cavity of installation assembly 14 are symmetrically movably connected with reinforcing assembly 22, the top and bottom of the inner cavity of reinforcing assembly 22 are symmetrically movably connected with triangular plate 24, the two sides of the inner cavity of reinforcing assembly 22 are symmetrically movably connected with displacement assembly 25, the two ends of the bottom of installation assembly 14 are symmetrically installed with rack 29, the side of rack 29 is provided with brush roller 32, the median of the two sides of installation assembly 14 is symmetrically provided with shrinkage slot 19, fixed column 20 is installed in the inner cavity of shrinkage slot 19, contraction spring 21 is wound in the median of the outer wall of fixed column 20, the two ends of contraction spring 21 are symmetrically installed in the side opposite to the side of the two reinforcing assembly 22, strong spring 23 is symmetrically fixedly connected to the top and bottom of the inner cavity of reinforcing assembly 22, the other end of strong spring 23 is installed on the outer wall of triangular plate 24, one end of displacement assembly 25 is installed with displacement block 26, displacement block 26 is movably connected in the inner cavity of reinforcing assembly 22, screw rod 27 is rotatably connected in the inner cavity of reinforcing assembly 22, displacement block 26 is screw-connected on the outer wall of screw rod 27, one end of reinforcing assembly 22 is installed with servo motor 28, servo motor 28 is connected with screw rod 27 through rotating shaft, the bottom of rack 29 is movably connected in the bottom of the inner cavity of equipment body 1, gear 30 is symmetrically installed on the two ends of brush roller 32, gear 30 is engaged with rack 29, bearing seat 31 is also installed on the two ends of brush roller 32, the top of bearing seat 31 is installed on the bottom of installation assembly 14;

[0044] By setting contraction spring 21, two reinforcing assembly 22 can be shrunk to the opposite side, so that reinforcing assembly 22 can adapt to the size of printed circuit board and position it, by setting strong spring 23, triangular plate 24 can be driven to move, after one end of printed circuit board enters the inner cavity of reinforcing assembly 22, the top and bottom triangular plate 24 can clamp and position it, so that the fastening degree of positioning printed circuit board can be improved;

[0045] By starting the servo motor 28 set, can drive the screw rod 27 rotation, so that the displacement block 26 can be threaded connection with the screw rod 27, so that the displacement assembly 25 can move in the left and right in the inner cavity of the reinforcement assembly 22, when both sides of the displacement assembly 25 to the opposite side, it can continue to move to the printed circuit board reinforcement processing, when both sides of the displacement assembly 25 to the direction of communication, it can drive the printed circuit board to one side, in its wet chemical treatment, can improve the contact area of the printed circuit board and the brush roller 32 and soft brush 11;

[0046] By the installation assembly 14 up and down, can drive the rack 29 up and down, the rack 29 can be engaged with the gear 30 at this time, so that the brush roller 32 can rotate, so that the brush roller 32 can contact the bottom of the printed circuit board, in the printed circuit board wet chemical treatment, it can improve the efficiency of processing.

[0047] Example three:

[0048] As Figure 1 , Figure 2 , Figure 7 As shown in a kind of printed circuit board wet chemical treatment equipment, equipment body 1 inner cavity's top rotationally connected with stirring barrel 9, stirring barrel 9's side is equipped with soft brush 11, stirring barrel 9 is cavity structure, stirring barrel 9's outer wall is equipped with through slot 10, equipment body 1's inner cavity is equipped with chain 12, chain 12's inner cavity is equipped with sprocket 13, sprocket 13 is connected with stirring barrel 9, the outer wall of equipment body 1 is equipped with driving motor, driving motor is installed in the outer wall of one of sprocket 13 by second shaft;

[0049] By starting the chain 12 and sprocket 13 set, can drive stirring barrel 9 rotation, stirring barrel 9 can drive soft brush 11 to process the top of the printed circuit board, for improving the efficiency and precision of wet chemical treatment.

[0050] A kind of printed circuit board wet chemical treatment equipment's use method, including the following operating steps:

[0051] S1: the sealed plate 5 is opened, prepares printed circuit board, separates two reinforcement assemblies 22, drives the side of reinforcement assembly 22 to move in the inner cavity of shrinkage slot 19, prevents printed circuit board between two reinforcement assemblies 22, its both ends are inserted into the inner cavity of reinforcement assembly 22, the both ends of printed circuit board will open the top and bottom triangular plate 24, when the both ends of printed circuit board are completely entered into the inner cavity of reinforcement assembly 22, reinforcement assembly 22 is loosened, so that the shrinkage spring 21 can drive reinforcement assembly 22 to shrink, so that reinforcement assembly 22 and triangular plate 24 can be positioned to the printed circuit board processing;

[0052] S2: the sealing plate 5 is closed, the material for wet chemical treatment of the printed circuit board is input into the inner cavity of the equipment body 1 through the infusion tube 7, the chain 12 is started, the sprocket 13 can drive the stirring barrel 9 to rotate, when the stirring barrel 9 rotates, the soft brush 11 can be driven to rotate, after the soft brush 11 contacts the printed circuit board, the chemical treatment efficiency of the printed circuit board can be improved, and the flow disturbance effect of the material in the inner cavity of the equipment body 1 can be achieved through the through groove 10;

[0053] S3: when the position of the printed circuit board has a certain distance from the soft brush 11, the driving motor 3 is started, the connecting nylon 8 is driven to move up and down through the winding roller 4, so that the mounting assembly 14 can drive the printed circuit board to move up and down, when the mounting assembly 14 moves, the movable block 15 on the right and the matching wheel 16 can move in the inner cavity of the equipment body 1 and the outer wall of the guide rod 17;

[0054] S4: the mounting assembly 14 drives the printed circuit board to move, and at the same time drives the rack 29 at the bottom of the printed circuit board to move, the rack 29 can be engaged with the gear 30, so that the brush roller 32 can rotate, the brush roller 32 can clean the bottom of the printed circuit board, so that the material can better contact the printed circuit board, and the efficiency of the wet chemical treatment of the printed circuit board can be further improved;

[0055] S5: the servo motor 28 at the corresponding position is started, the lead screw 27 can be driven to rotate, so that the displacement block 26 can be threadedly connected with the lead screw 27, based on this, the displacement assembly 25 in the inner cavity of the reinforcing assembly 22 can be driven to move horizontally, the two displacement assemblies 25 in the inner cavity of each reinforcing assembly 22 can move freely, when the wet chemical treatment of the printed circuit board is carried out, the two sides of the printed circuit board can be clamped, and the printed circuit board can also be driven to move left and right, so as to increase the contact area of the printed circuit board and the soft brush 11 and the brush roller 32.

[0056] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, the above embodiments and the description in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application 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 two lifting assemblies (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 two reinforcing assemblies (22), the top and bottom of the inner cavity of the reinforcing assembly (22) are symmetrically movably connected with triangular plates (24), the two sides of the inner cavity of the reinforcing assembly (22) are symmetrically movably connected with displacement assemblies (25), the two ends of the bottom of the mounting assembly (14) are symmetrically provided with racks (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); 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 central part of the outer wall of the fixed column (20) is wound with a contraction spring (21), and the two ends of the reinforcing assembly (22) are movably connected in the inner cavity of the contraction groove (19) and are sleeved on the outer wall of the fixed column (20). The two ends of the contraction spring (21) are symmetrically mounted on the side opposite to the side of the two reinforcing assemblies (22); The top and bottom of the inner cavity of the reinforcing assembly (22) are symmetrically fixedly connected with powerful springs (23), and the other end of the powerful spring (23) is mounted on the outer wall of the triangular plate (24); 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 screw-connected to the outer wall of the lead screw (27), and one end of the reinforcing assembly (22) is provided with a servo motor (28). The servo motor (28) is connected with 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 device body (1), the two ends of the brush roller (32) are symmetrically provided with gears (30), the gears (30) are engaged with the rack (29), and the two ends of the brush roller (32) are also provided with bearing seats (31). The top of the bearing seat (31) is mounted on the bottom of the mounting assembly (14).

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 provided with a winding roller (4) through a shaft coupling, 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 equipment body (1) and is arranged on the left side of the top of the mounting assembly (14), the two ends of the right side of the mounting assembly (14) are 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), the movable block (15) and the matching wheel (16) are movably connected on the right side of the inner cavity of the equipment body (1), the right side of the inner cavity of the equipment 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 stirring barrel (9) is a hollow structure, and the outer wall of the stirring barrel (9) is provided with a through groove (10).

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

6. A method of using a printed circuit board wet chemical processing apparatus, using a printed circuit board wet chemical processing apparatus according to any one of claims 1 to 5, characterized in that: The following operation steps are included: S1: open the sealing plate (5), prepare the printed circuit board, separate the two reinforcing assemblies (22), move the side edges of the reinforcing assemblies (22) in the inner cavity of the contraction groove (19), prevent the printed circuit board from being between the two reinforcing assemblies (22), insert the two ends into the inner cavities of the reinforcing assemblies (22), the two ends of the printed circuit board will support the top and bottom triangular plates (24), when the two ends of the printed circuit board completely enter the inner cavities of the reinforcing assemblies (22), loosen the reinforcing assemblies (22), so that the contraction springs (21) can drive the reinforcing assemblies (22) to contract, so that the reinforcing assemblies (22) and the triangular plates (24) can position the printed circuit board; S2: close the sealing plate (5), 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 barrel (9) to rotate, when the stirring barrel (9) rotates, the soft brush (11) rotates, after the soft brush (11) contacts the printed circuit board, the chemical treatment efficiency of the printed circuit board can be improved, and the through groove (10) can disturb the flow of the material in the inner cavity of the equipment body (1); S3: when the position of the printed circuit board is a certain distance away from the soft brush (11), start the driving motor (3), drive the connecting nylon (8) to move up and down through the winding roller (4), so that the mounting assembly (14) can drive the printed circuit board to move up and down, when the mounting assembly (14) moves, the right side movable block (15) and the matching wheel (16) move in the inner cavity of the equipment body (1) and the outer wall of the guide rod (17). S4: the installation assembly (14) drives the printed circuit board to move, and the rack (29) at the bottom of the printed circuit board moves, the rack (29) can be engaged with the gear (30), so that the brush roller (32) can rotate, the brush roller (32) can clean the bottom of the printed circuit board, so that the material can better contact the printed circuit board, and the efficiency of the wet chemical treatment of the printed circuit board can be further improved; S5: start the servo motor (28) at the corresponding position, drive the lead screw (27) to rotate, so that the displacement block (26) can be screwed with the lead screw (27), based on which the displacement assembly (25) in the inner cavity of the reinforcing assembly (22) can move horizontally, the two displacement assemblies (25) in the inner cavity of each reinforcing assembly (22) can move freely, when the printed circuit board is wet-chemically treated, 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 of the printed circuit board with the soft brush (11) and the brush roller (32).

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