Printed circuit board etching equipment

Abstract

The utility model discloses a printed circuit board etching device which comprises an etching box and a conveying piece used for conveying a circuit board, a conveying shaft is arranged in the etching box, a conveying roller is arranged on the conveying shaft, and one end of the conveying piece is sleeved on the conveying roller and extends into the etching box. Fixing pieces are symmetrically arranged on the conveying piece, each fixing piece is composed of a mounting seat and a leaning seat, an elastic arm and a guide arm are arranged on each leaning seat, and a clamping area for clamping a circuit board is formed between each elastic arm and the corresponding guide arm. When the printed circuit board etching equipment needs to etch a circuit board, the circuit board is pressed into the clamping area, and the circuit board is pushed through upward stress of the clamping arms, so that the upper end of the circuit board is attached to the convex block, and clamping is realized. And the friction force is increased in cooperation with the protruding blocks, and it is guaranteed that the circuit board can be stably installed in the clamping area. Meanwhile, the upper surface and the lower surface of the circuit board can be etched by the solution, and the back surface of the circuit board does not need to be processed independently.

Description

Technical Field

[0001] The utility model relates to etching technology, in particular to a printed circuit board etching device. Background Art

[0002] Circuit boards have the characteristics of high wiring density, light weight, thin thickness and good flexibility. The etching process used in the production of circuit boards is usually chemical etching, which means that after exposure and development, the protective film of the area to be etched is removed, and it comes into contact with chemical solutions during etching to achieve the effect of dissolution and corrosion, forming a concave-convex or hollow molding effect.

[0003] CN213783726U discloses an efficient circuit board etching device, including an etching box, a feed port opened on the top wall of the etching box, a mounting plate for mounting the circuit board, a fixing assembly arranged on the mounting plate for fixing the circuit board, and a rotating assembly for rotating the mounting plate, the top wall of the etching box is provided with a lifting platform, the rotating assembly includes a rotating shaft arranged vertically and rotatably connected to the lifting platform, a gear sleeved and fixed on the rotating shaft extending to the top of the lifting platform, a cylinder installed on the top wall of the lifting platform, and a rack fixed on the piston rod of the cylinder, the rack meshes with the gear, and the rotating shaft extends to one end below the lifting platform and is fixedly connected to the top wall of the mounting plate. Some of the circuit boards need to be turned over during etching so as to facilitate etching on both sides, but since the etching device in the prior art does not have a structural setting that facilitates turning over the circuit board, the problem of position deviation occurs when the staff manually turns over the circuit board. For this reason, we propose a circuit board etching device. Utility Model Content

[0004] In order to solve the defects of the prior art mentioned above, the utility model provides a printed circuit board etching device.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A printed circuit board etching device comprises an etching box and a conveyor for conveying circuit boards, wherein a conveyor shaft is provided in the etching box, a conveyor roller is provided on the conveyor shaft, one end of the conveyor is sleeved on the conveyor roller and extends into the etching box,

[0007] The conveying member is provided with a symmetrically arranged fixing member, the fixing member is composed of a mounting seat and a leaning seat, the mounting seat and the leaning seat are vertically arranged, an elastic arm and a guide arm are provided on the leaning seat, a clamping area for clamping the circuit board is formed between the elastic arm and the guide arm, and a bearing section is provided on the elastic arm.

[0008] A receiving groove is arranged in the middle of the fixing member, a fixing seat is arranged in the receiving groove, and the fixing seat is provided with a transverse section and a vertical section, the transverse section is arranged in the mounting seat, and the vertical section is arranged in the leaning seat.

[0009] In the printed circuit board etching device of the utility model, a guiding arc surface is provided on the guiding arm.

[0010] In the printed circuit board etching device of the utility model, a connecting section is provided at the lower end of the mounting seat, and a symmetrically arranged extension part is provided at the lower end of the connecting section. A compression area is formed in the middle of the extension part, and the extension part is kept connected to the fixing seat by bolts.

[0011] In the printed circuit board etching device of the utility model, a mounting hole is provided on the conveying member, and symmetrically arranged cut surfaces are provided on the extension portion, and the distance between the cut surfaces is smaller than the diameter of the mounting hole.

[0012] In the printed circuit board etching device of the utility model, a clamping arm is provided on the vertical section, a lifting arm is provided on the clamping arm, the clamping arm is arranged in the middle of the elastic arm, and the lifting arm is arranged in the middle of the bearing section.

[0013] In the printed circuit board etching device of the utility model, a plurality of protruding blocks are provided at the lower end of the guide arm.

[0014] In the printed circuit board etching device of the utility model, the height of the clamping area is smaller than the thickness of the circuit board.

[0015] The printed circuit board etching device of the utility model has the following beneficial effects: when the printed circuit board needs to be etched, the printed circuit board etching device presses it into the clamping area, and the clamping arm pushes the circuit board upward, so that the upper end of the circuit board is close to the protruding block, thereby achieving clamping. The protruding block is used to increase the friction force, ensuring that the circuit board can be stably installed in the clamping area. At the same time, the upper and lower surfaces of the circuit board can be etched by the solution, and there is no need to process the reverse side separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the printed circuit board etching equipment of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the transmission parts, circuit boards and fixing parts;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of the fixing parts, fixing base and circuit board in FIG.

[0019] Figure 4 for Figure 3 A local enlarged view of point A in FIG.

[0020] Figure 5 for Figure 3 Exploded view of the fixings and mounting structure. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figure 1 As shown in the figure, the printed circuit board etching device of the utility model includes an etching box 1 and a conveyor 2 for transmitting a circuit board 3. The etching box 1 is used to place a solution for etching the circuit board 3, and the conveyor 2 is used to drive the circuit board 3 to be etched to move through the etching box 1 and immerse it in the solution in the etching box 1. At the same time, the moving speed of the conveyor 2 can be adjusted, so that the circuit board 3 can be immersed for a longer time.

[0023] A conveying shaft 4 is provided in the etching box 1, and a conveying roller 5 is provided on the conveying shaft 4. One end of the conveying member 2 is sleeved on the conveying roller 5 and extends into the etching box 1. A driving member is provided at the other end of the conveying member 2 for driving the conveying member 2 to rotate, thereby driving the circuit board 3 on the conveying member 2 to move.

[0024] A symmetrically arranged fixing member 6 is provided on the conveying member 2. The fixing member 6 is composed of a mounting seat 7 and a leaning seat 8. The mounting seat 7 and the leaning seat 8 are vertically arranged. An elastic arm 9 and a guide arm 10 are provided on the leaning seat 8. The guide arm 10 is provided with a guide arc surface 11 for guiding the circuit board 3 to enter the clamping area 12 for clamping. A plurality of protrusions 13 are provided at the lower end of the guide arm 10 for increasing the friction between the circuit board 3 and the guide arm 10 to keep the circuit board 3 stably installed.

[0025] A clamping area 12 for clamping the circuit board 3 is formed between the elastic arm 9 and the guide arm 10, and the height of the clamping area 12 is less than the thickness of the circuit board 3. A bearing section 14 is provided on the elastic arm 9. A hollow area 15 is formed between the mounting seat 7 and the bearing section 14, so that the solution can reach the lower end of the circuit board 3, and both the upper and lower surfaces of the circuit board 3 have an etching effect.

[0026] A receiving groove 16 is provided in the middle of the fixing member 6, a fixing seat 17 is provided in the receiving groove 16, and the fixing seat 17 is provided with a transverse section 18 and a vertical section 19, the transverse section 18 is placed in the mounting seat 7, and the vertical section 19 is placed in the leaning seat 8. The fixing member 6 and the fixing seat 17 are made of materials that are not easily etched.

[0027] The lower end of the mounting seat 7 is provided with a connecting section 20, and the lower end of the connecting section 20 is provided with a symmetrically arranged expansion section 21, and a compression area 22 is formed in the middle of the expansion section 21. The expansion section 21 is connected to the fixing seat 17 by bolts 23. The transmission member 2 is provided with a mounting hole 24, and the expansion section 21 is provided with symmetrically arranged cut surfaces 25, and the distance between the cut surfaces 25 and the cut surfaces 25 is smaller than the diameter of the mounting hole 24. When installing the fixing member 6, the expansion section 21 is first pressed toward the middle, so that the compression area 22 first increases and then decreases, and then passes through the mounting hole 24, and then the external force is canceled, and then the expansion section 21 is reset under its own elastic force, and then the bolts 23 are used to connect it to the fixing seat 17, so that the fixing seat 17 and the fixing member 6 are installed on the transmission member 2.

[0028] A clamping arm 26 is provided on the vertical section 19, and a lifting arm 27 is provided on the clamping arm 26. The clamping arm 26 is arranged in the middle of the elastic arm 9, and the lifting arm 27 is arranged in the middle of the bearing section 14. In a normal state, the clamping arm 26 approaches the direction of the guide arm 10, and when the circuit board 3 is guided by the guide arc surface 11, it then enters the clamping area 12, thereby pushing the bearing section 14 and the lifting arm 27, so that the clamping arm 26 is deformed by force and moves downward, canceling the external force, keeping the clamping arm 26 reset by force, and clamping the circuit board 3 in the clamping area 12.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printed circuit board etching device, comprising an etching box and a conveyor for conveying circuit boards, characterized in that: A conveying shaft is provided in the etching box, a conveying roller is provided on the conveying shaft, one end of the conveying member is sleeved on the conveying roller and extends into the etching box. The conveying member is provided with a symmetrically arranged fixing member, the fixing member is composed of a mounting seat and a leaning seat, the mounting seat and the leaning seat are vertically arranged, an elastic arm and a guide arm are provided on the leaning seat, a clamping area for clamping the circuit board is formed between the elastic arm and the guide arm, and a bearing section is provided on the elastic arm. A receiving groove is arranged in the middle of the fixing member, a fixing seat is arranged in the receiving groove, and the fixing seat is provided with a transverse section and a vertical section, the transverse section is arranged in the mounting seat, and the vertical section is arranged in the leaning seat.

2. The printed circuit board etching equipment according to claim 1, characterized in that: The guide arm is provided with a guide cambered surface.

3. The printed circuit board etching equipment according to claim 1, characterized in that: A connecting section is provided at the lower end of the mounting seat, and a symmetrically arranged expansion portion is provided at the lower end of the connecting section. A compression area is formed in the middle of the expansion portion, and the expansion portion is connected to the fixing seat by bolts.

4. The printed circuit board etching equipment according to claim 3, characterized in that: The conveying member is provided with a mounting hole, and the expansion portion is provided with symmetrically arranged cut surfaces, and the distance between the cut surfaces is smaller than the diameter of the mounting hole.

5. The printed circuit board etching equipment according to claim 1, characterized in that: A clamping arm is arranged on the vertical section, a lifting arm is arranged on the clamping arm, the clamping arm is arranged in the middle of the elastic arm, and the lifting arm is arranged in the middle of the bearing section.

6. The printed circuit board etching equipment according to claim 1, characterized in that: The lower end of the guide arm is provided with a plurality of protruding blocks.

7. The printed circuit board etching equipment according to claim 1, characterized in that: The height of the clamping area is smaller than the thickness of the circuit board.

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