Micro-etching device for manufacturing printed circuit board

Abstract

The utility model discloses a micro-etching device for manufacturing a printed circuit board, which comprises a reaction tank, a vertical rod mounted at the front end of the reaction tank, a lifting groove formed in the rear end of the vertical rod, a threaded rod arranged in the lifting groove, a motor mounted at the upper end of the threaded rod, a threaded sleeve sleeved on the outer surface of the threaded rod, a lifting plate mounted at the rear end of the threaded sleeve, and a plurality of L-shaped rods mounted at the lower end of the lifting plate, an L-shaped slot is formed in the inner wall of the L-shaped rod and penetrates through the left end face of the L-shaped rod, a positioning rod is installed at the lower end of the L-shaped rod, the outer surface of the positioning rod is sleeved with an L-shaped check block, and the outer surface of the positioning rod is sleeved with a first spring. According to the utility model, the internal space of the reaction tank is divided through the separation mechanism, then a micro-etching agent is poured into the space with the circuit board, and the circuit board is soaked in the micro-etching agent for reaction, so that the use amount of the micro-etching agent is effectively saved; the air bag is expanded and clings to the inner wall of the reaction tank, so that the sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the field of circuit board manufacturing, and specifically relates to a micro-etching device for printed circuit board manufacturing. Background Art

[0002] The production of printed circuit boards requires multiple complex processes, including a micro-etching process. The micro-etching process can clean the impurities on the surface of the printed circuit board and form a certain roughness on the surface of the printed circuit board to increase the adhesion of the surface of the printed circuit board in subsequent copper plating or tin plating processes. Existing micro-etching devices need to place multiple printed circuit boards in a reaction tank to react with the micro-etching agent. In the prior art, the size of the reaction tank of the micro-etching device is fixed. Regardless of how many circuit boards are soaked and reacted, the dosage of the micro-etching agent poured into the reaction tank is the same. When performing the micro-etching process on a small number of circuit boards, the same amount of micro-etching agent is still poured into the reaction tank, and the usage amount of the micro-etching agent cannot be saved, resulting in an increase in cost. Therefore, those skilled in the art have provided a micro-etching device for printed circuit board manufacturing to solve the problems raised in the above background art. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a micro-etching device for printed circuit board manufacturing, which includes a reaction tank. A vertical rod is installed at the front end of the reaction tank, a lifting groove is opened at the rear end of the vertical rod, a threaded rod is arranged in the lifting groove, a motor is installed at the upper end of the threaded rod, a threaded sleeve is sleeved on the outer surface of the threaded rod, a lifting plate is installed at the rear end of the threaded sleeve, several L-shaped rods are installed at the lower end of the lifting plate, an L-shaped slot is opened on the inner wall of the L-shaped rod, and the L-shaped slot penetrates through the left end surface of the L-shaped rod. A positioning rod is installed at the lower end of the L-shaped rod, an L-shaped stopper is sleeved on the outer surface of the positioning rod, and the L-shaped stopper blocks the left end of the L-shaped slot. A first spring is sleeved on the outer surface of the positioning rod, and the first spring is located below the L-shaped stopper;

[0004] A separation mechanism is arranged in the reaction tank. The separation mechanism includes a separation plate and an airbag. A hollow plate is installed at the upper end of the separation plate. C-shaped hidden grooves are opened at the left and right ends and the lower end of the separation plate. An airbag is arranged inside the C-shaped hidden groove, and both ends of the airbag are communicated with the hollow plate. A piston plate is slidably connected inside the hollow plate. A sliding rod is installed at the upper end of the piston plate, and the sliding rod passes through the hollow plate. A matching plate is installed at the upper end of the sliding rod, and second springs are symmetrically installed between the matching plate and the hollow plate.

[0005] Preferably: Blocking blocks are symmetrically installed at the front part of the upper end of the reaction tank.

[0006] Preferably: The several L-shaped rods are evenly arranged on the lower end surface of the lifting plate.

[0007] Preferably: A limiting block is installed at the lower end of the positioning rod.

[0008] Preferably: A pushing block is installed at the left end of the L-shaped stopper.

[0009] Technical effects and advantages of the present utility model:

[0010] In the present utility model, the internal space of the reaction tank is divided by a partitioning mechanism, and then a micro-etchant is poured into the space with the circuit board. The circuit board is immersed in the micro-etchant for reaction, effectively saving the usage amount of the micro-etchant. At the same time, the gas inside the hollow plate is pushed into the airbag by the piston plate, causing the airbag to expand and tightly adhere to the inner wall of the reaction tank, improving the sealing performance. Description of the drawings

[0011] Figure 1 is the structural schematic diagram of the present application;

[0012] Figure 2 is the structural schematic diagram of the reaction tank of the present application;

[0013] Figure 3 is the structural schematic diagram of the vertical rod of the present application;

[0014] Figure 4 is the structural schematic diagram of the L-shaped rod of the present application;

[0015] Figure 5 is the structural schematic diagram of the partitioning mechanism of the present application;

[0016] In the figure: 1, reaction tank; 2, blocking block; 3, vertical rod; 4, lifting groove; 5, threaded rod; 6, motor; 7, threaded sleeve; 8, lifting plate; 9, L-shaped rod; 10, L-shaped slot; 11, positioning rod; 12, L-shaped stop block; 13, spring one; 14, partitioning mechanism; 15, partitioning plate; 16, U-shaped hidden groove; 17, airbag; 18, hollow plate; 21, mating plate; 22, spring two. Detailed implementation manners

[0017] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific implementation manners. The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limited to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0018] Please refer to Figures 1 to 5, in this embodiment, a micro-etching device for printed circuit board manufacturing is provided, including a reaction tank 1. At the front part of the upper end of the reaction tank 1, blocking blocks 2 are symmetrically installed. At the front end of the reaction tank 1, a vertical rod 3 is installed. A lifting groove 4 is opened at the rear end of the vertical rod 3. A threaded rod 5 is arranged in the lifting groove 4. A motor 6 is installed at the upper end of the threaded rod 5. A threaded sleeve 7 is sleeved on the outer surface of the threaded rod 5. A lifting plate 8 is installed at the rear end of the threaded sleeve 7. A number of L-shaped rods 9 are installed at the lower end of the lifting plate 8, and the number of L-shaped rods 9 are evenly arranged on the lower end surface of the lifting plate 8. An L-shaped slot 10 is opened on the inner wall of the L-shaped rod 9, and the L-shaped slot 10 penetrates through the left end surface of the L-shaped rod 9. A positioning rod 11 is installed at the lower end of the L-shaped rod 9. A limiting block is installed at the lower end of the positioning rod 11. An L-shaped stop block 12 is sleeved on the outer surface of the positioning rod 11, and the L-shaped stop block 12 blocks the left end of the L-shaped slot 10. A push block is installed at the left end of the L-shaped stop block 12. A first spring 13 is sleeved on the outer surface of the positioning rod 11, and the first spring 13 is located below the L-shaped stop block 12. A separating mechanism 14 is arranged in the reaction tank 1. The separating mechanism 14 includes a separating plate 15 and an airbag 17. A hollow plate 18 is installed at the upper end of the separating plate 15. C-shaped hidden grooves 16 are opened at the left and right ends and the lower end of the separating plate 15. The airbag 17 is arranged inside the C-shaped hidden groove 16, and both ends of the airbag 17 are communicated with the hollow plate 18. A piston plate is slidably connected inside the hollow plate 18. A sliding rod is installed at the upper end of the piston plate, and the sliding rod passes through the hollow plate 18. A matching plate 21 is installed at the upper end of the sliding rod. Second springs 22 are symmetrically installed between the matching plate 21 and the hollow plate 18.

[0019] The working principle of the present utility model is as follows:

[0020] Install a small amount of circuit boards in the L-shaped rods 9. Push the L-shaped stop block 12 to descend through the push block. The L-shaped stop block 12 descends to compress the first spring 13, so that the L-shaped stop block 12 leaves the L-shaped slot 10. Insert the circuit board into the L-shaped slot 10, and then release the push block. Push the L-shaped stop block 12 to reset through the first spring 13 to block the L-shaped slot 10 and fix the position of the circuit board. Then insert the separating mechanism 14 into the reaction tank 1, so that the separating mechanism 14 is located on the right side of the rightmost circuit board, and the separating mechanism 14 is located between the two L-shaped rods 9. Drive the threaded rod 5 to rotate through the motor 6. The threaded rod 5 drives a number of L-shaped rods 9 to descend synchronously through the threaded sleeve 7 and the lifting plate 8. The L-shaped rods 9 drive a small amount of circuit boards to descend into the reaction tank 1. The lifting plate 8 stops descending after contacting the blocking block 2. During the process of the lifting plate 8 descending to the bottom, the lifting plate 8 pushes the matching plate 21 to descend. The matching plate 21 drives the piston plate to descend through the sliding rod. Push the gas inside the hollow plate 18 into the airbag 17 through the piston plate, so that the airbag 17 expands and adheres tightly to the inner wall of the reaction tank 1 to improve the sealing performance. Divide the internal space of the reaction tank 1 through the separating mechanism 14, and then pour the micro-etching agent into the space with the circuit boards. The circuit boards are immersed in the micro-etching agent for reaction, effectively saving the usage amount of the micro-etching agent.

Claims

1. A micro-etching device for printed circuit board manufacturing, including a reaction tank (1), characterized in that, a vertical rod (3) is installed at the front end of the reaction tank (1), a lifting groove (4) is opened at the rear end of the vertical rod (3), a threaded rod (5) is arranged in the lifting groove (4), a motor (6) is installed at the upper end of the threaded rod (5), a threaded sleeve (7) is sleeved on the outer surface of the threaded rod (5), a lifting plate (8) is installed at the rear end of the threaded sleeve (7), several L-shaped rods (9) are installed at the lower end of the lifting plate (8), an L-shaped slot (10) is opened on the inner wall of the L-shaped rod (9), and the L-shaped slot (10) penetrates through the left end face of the L-shaped rod (9), a positioning rod (11) is installed at the lower end of the L-shaped rod (9), an L-shaped block (12) is sleeved on the outer surface of the positioning rod (11), and the L-shaped block (12) blocks the left end of the L-shaped slot (10), a first spring (13) is sleeved on the outer surface of the positioning rod (11), and the first spring (13) is located below the L-shaped block (12); a partitioning mechanism (14) is arranged in the reaction tank (1), the partitioning mechanism (14) includes a partitioning plate (15) and an air bag (17), a hollow plate (18) is installed at the upper end of the partitioning plate (15), U-shaped hidden grooves (16) are opened at the left and right ends and the lower end of the partitioning plate (15), the air bag (17) is arranged inside the U-shaped hidden groove (16), and both ends of the air bag (17) are communicated with the hollow plate (18), a piston plate is slidably connected inside the hollow plate (18), a sliding rod is installed at the upper end of the piston plate, and the sliding rod passes through the hollow plate (18), a mating plate (21) is installed at the upper end of the sliding rod, and second springs (22) are symmetrically installed between the mating plate (21) and the hollow plate (18).

2. The micro-etching device for printed circuit board manufacturing according to claim 1, characterized in that, blocking blocks (2) are symmetrically installed at the front part of the upper end of the reaction tank (1).

3. The micro-etching device for printed circuit board manufacturing according to claim 1, characterized in that, several of the L-shaped rods (9) are uniformly arranged on the lower end surface of the lifting plate (8).

4. The micro-etching device for printed circuit board manufacturing according to claim 1, characterized in that, a limit block is installed at the lower end of the positioning rod (11).

5. The micro-etching device for printed circuit board manufacturing according to claim 1, characterized in that, a push block is installed at the left end of the L-shaped block (12).

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