Etching device for producing composite heat-conducting PCB (Printed Circuit Board)

Abstract

The utility model discloses an etching device for producing a composite heat-conducting PCB (Printed Circuit Board), which belongs to the field of circuit boards, and comprises an etching box, a movable rectangular circuit board frame is arranged in the etching box, a moving mechanism for moving the rectangular circuit board frame is arranged on one side in the etching box, and the rectangular circuit board frame is arranged on the other side in the etching box. An etching spraying pipe is arranged in the etching box and located at the top of the rectangular circuit board frame, a first liquid storage box is arranged at the bottom of the etching spraying pipe and located in the etching box, and the etched circuit board can rotate, so that etching liquid on the surface of the circuit board can automatically fall into the first liquid storage box; and the circuit board is moved to the top of the second liquid storage tank, and the surface of the circuit board can be cleaned through the arrangement of a cleaning spraying pipe and a vertical scraping plate, so that the etching liquid is thoroughly removed, and the cleanliness of the surface of the circuit board and the product quality are ensured.

Description

Technical Field

[0001] The utility model relates to the field of circuit boards, and more specifically to an etching device for producing composite heat-conducting PCB circuit boards. Background Art

[0002] Composite thermal conductive PCB circuit board is a printed circuit board that combines multiple materials to improve its thermal conductivity. This board is usually used in electronic devices that require efficient heat dissipation, such as power electronics, electric vehicles and high-performance computers. In the electronics industry, the etching process is one of the key steps in forming circuit graphics during the production of printed circuit boards. The etching process forms a predetermined circuit pattern by removing the non-circuit area on the copper foil. However, during the etching process, if the etching liquid remaining on the surface of the circuit board is not effectively removed, it will not only affect the quality of the circuit board, but may also lead to waste of etching liquid and environmental pollution.

[0003] For example, the patent (CN217770523U) discloses a high-density circuit board circuit etching device, which opens multiple quartz heating tubes installed at the bottom of the box and rotates the valve on the high-pressure nitrogen tank to cause the quartz heating tubes to heat the sodium hydroxide solution, and the gaseous nitrogen is introduced into the exhaust pipe group from the charging pipe, and then enters the sodium hydroxide solution in the form of bubbles from multiple through holes evenly opened on the top surface of the exhaust pipe group, so that the sodium hydroxide solution continues to surge, which is conducive to the efficient film stripping of the circuit board and ensures the efficiency of the etching process;

[0004] When using the above technology, it is found that the prior art has the following technical problems: only etching operation is performed, but there is a lack of subsequent cleaning and liquid collection functions. A certain amount of etching liquid often remains on the surface of the circuit board after etching. These residual liquids will not only corrode the surface of the circuit board, but also affect the subsequent process. For this reason, we design an etching device for the production of composite thermal conductive PCB circuit boards to provide another technical solution to the above technical problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide an etching device for the production of composite thermal conductive PCB circuit boards, which can rotate the circuit board after etching, so that the etching liquid on the surface of the circuit board can automatically fall into the interior of the first liquid storage tank, and can clean the surface of the circuit board to ensure that the etching liquid is completely removed.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] An etching device for producing a composite heat-conducting PCB circuit board comprises an etching box, wherein a movable rectangular circuit board rack is arranged inside the etching box, a moving mechanism for moving the rectangular circuit board rack is arranged on one side inside the etching box, an etching spray pipe is arranged inside the etching box and located on the top of the rectangular circuit board rack, a first liquid storage tank is arranged at the bottom of the etching spray pipe and located inside the etching box, a second liquid storage tank is arranged at one end of the first liquid storage tank, and a partition plate is arranged between the first liquid storage tank and the second liquid storage tank and located inside the etching box;

[0010] A cleaning mechanism for cleaning the circuit board is arranged at one end of the etching box.

[0011] Furthermore, first hydraulic cylinders are fixed at both ends of the rectangular circuit board rack, and rectangular clamping blocks are fixed at the output ends of the first hydraulic cylinders. The rectangular clamping blocks are located inside the rectangular circuit board rack and are slidably connected to the rectangular circuit board rack.

[0012] Furthermore, the moving mechanism has two rectangular fixed plates, and rectangular fixed plates are fixed at both ends of the inner side of the etching box, one end of the rectangular fixed plate is bolted to a first driving motor, an output end of the first driving motor is fixed to a first transverse threaded rod, an outer side of the first transverse threaded rod is threadedly connected to a transverse moving block, one side of the transverse moving block is rotatably connected to a longitudinal rotating column through a bearing, one side of the longitudinal rotating column is fixedly connected to a rectangular circuit board frame, one end of the transverse moving block is fixed to a transverse support column, and a rotating component for rotating the longitudinal rotating column is arranged inside the transverse support column.

[0013] Furthermore, a transverse guide roller is slidably connected inside the transverse moving block, and the transverse guide roller is close to one side of the etching box and is fixedly connected to the etching box.

[0014] Furthermore, the rotating assembly includes a second driving motor, a second driving motor is bolted to one end of the transverse support column, a second transverse threaded rod is fixed to the output end of the second driving motor, an outer side of the second transverse threaded rod is threadedly connected to a transverse sliding block, one side of the transverse sliding block is rotatably connected to an oblique rotating plate via a pin shaft, one end of the oblique rotating plate is rotatably connected to an oblique rotating plate via a pin shaft, and the oblique rotating plate is sleeved on the outer side of the longitudinal rotating column and fixedly connected to the longitudinal rotating column.

[0015] Furthermore, a transverse sliding groove is provided inside the transverse support column, and the transverse sliding block is located inside the transverse sliding groove of the transverse support column and is slidably connected to the transverse support column through the transverse sliding groove.

[0016] Furthermore, the cleaning mechanism includes two second hydraulic cylinders, both of which are located inside the etching box and a vertical mounting plate is fixed to the output end of the second hydraulic cylinder, a U-shaped frame is fixed to one end of the vertical mounting plate, a cleaning spray pipe is arranged inside the U-shaped frame, and a vertical scraper is arranged inside the U-shaped frame and on one side of the cleaning spray pipe.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] Through a series of designs, the present invention enables the circuit board to be rotated after etching, so that the etching liquid on the surface of the circuit board can automatically fall into the interior of the first liquid storage tank, and the circuit board is moved to the top of the second liquid storage tank. By setting a cleaning spray pipe and a vertical scraper, the surface of the circuit board can be cleaned to ensure that the etching liquid is completely removed, thereby ensuring the cleanliness of the circuit board surface and the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure inside the etching box of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the first transverse threaded rod and the transverse guide roller of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the first hydraulic cylinder and the rectangular clamping block of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the second drive motor and the second transverse threaded rod of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the U-shaped frame and the cleaning spray pipe of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the cleaning spray pipe and the vertical scraper of the utility model.

[0027] Description of the numbers in the figure:

[0028] 1. Etching box; 2. Rectangular circuit board rack; 3. First liquid storage tank; 4. Second liquid storage tank; 5. Partition plate; 6. Etching spray pipe; 7. Rectangular fixed plate; 8. First drive motor; 9. First transverse threaded rod; 10. Transverse guide roller; 11. Transverse moving block; 12. Transverse support column; 13. First hydraulic cylinder; 14. Rectangular clamping block; 15. Second drive motor; 16. Second transverse threaded rod; 17. Transverse sliding block; 18. Oblique rotating plate; 19. Oblique rotating plate; 20. Longitudinal rotating column; 21. U-shaped frame; 22. Vertical mounting plate; 23. Second hydraulic cylinder; 24. Cleaning spray pipe; 25. Vertical scraper. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0030] Example:

[0031] See also Figure 1-7 , an etching device for producing a composite heat-conducting PCB circuit board, comprising an etching box 1, a movable rectangular circuit board rack 2 is arranged inside the etching box 1, a moving mechanism for moving the rectangular circuit board rack 2 is arranged on one side inside the etching box 1, an etching spray pipe 6 is arranged inside the etching box 1 and located on the top of the rectangular circuit board rack 2, a first liquid storage tank 3 is arranged at the bottom of the etching spray pipe 6 and located inside the etching box 1, a second liquid storage tank 4 is arranged at one end of the first liquid storage tank 3, and a partition plate 5 is arranged between the first liquid storage tank 3 and the second liquid storage tank 4 and located inside the etching box 1;

[0032] A cleaning mechanism for cleaning the circuit board is provided at one end of the etching box 1;

[0033] A first hydraulic cylinder 13 is fixed at both ends of the rectangular circuit board rack 2, and a rectangular clamping block 14 is fixed at the output end of the first hydraulic cylinder 13. The rectangular clamping block 14 is located inside the rectangular circuit board rack 2 and is slidably connected to the rectangular circuit board rack 2. The operation of the first hydraulic cylinder 13 enables the two rectangular clamping blocks 14 to move inside the rectangular circuit board rack 2, so that the two rectangular clamping blocks 14 can fix the circuit board;

[0034] The moving mechanism has two rectangular fixed plates 7, both ends of the inner side of the etching box 1 are fixed with rectangular fixed plates 7, one end of the rectangular fixed plate 7 is bolted with a first drive motor 8, the output end of the first drive motor 8 is fixed with a first transverse threaded rod 9, the outer side of the first transverse threaded rod 9 is threadedly connected with a transverse moving block 11, one side of the transverse moving block 11 is rotatably connected with a longitudinal rotating column 20 through a bearing, one side of the longitudinal rotating column 20 is fixedly connected with the rectangular circuit board frame 2, one end of the transverse moving block 11 is fixed with a transverse support column 12, and a rotating component for rotating the longitudinal rotating column 20 is arranged inside the transverse support column 12;

[0035] The lateral moving block 11 is slidably connected to a lateral guide roller 10, which is close to one side of the etching box 1 and fixedly connected to the etching box 1, so that the lateral moving block 11 can slide on the outside of the lateral guide roller 10. The operation of the first lateral threaded rod 9 enables the lateral moving block 11 to slide on the outside of the lateral guide roller 10.

[0036] Here, the operation of the first driving motor 8 enables the first transverse threaded rod 9 to rotate, and the rotation of the first transverse threaded rod 9 enables the transverse moving block 11 to slide on the outside of the transverse guide roller 10, and then the rectangular circuit board rack 2 can be moved inside the etching box 1 through the longitudinal rotating column 20. When the rectangular circuit board rack 2 moves to the bottom of the etching spray pipe 6, the etching spray pipe 6 can spray the etching liquid so that the circuit board can be etched;

[0037] The rotating assembly includes a second driving motor 15, one end of the transverse support column 12 is bolted with the second driving motor 15, the output end of the second driving motor 15 is fixed with a second transverse threaded rod 16, the outer side of the second transverse threaded rod 16 is threadedly connected with a transverse sliding block 17, one side of the transverse sliding block 17 is rotatably connected with an oblique rotating plate 18 through a pin shaft, one end of the oblique rotating plate 18 is rotatably connected with an oblique rotating plate 19 through a pin shaft, and the oblique rotating plate 19 is sleeved on the outer side of the longitudinal rotating column 20 and fixedly connected to the longitudinal rotating column 20;

[0038] A transverse slide groove is provided inside the transverse support column 12, and the transverse sliding block 17 is located inside the transverse slide groove of the transverse support column 12 and is slidably connected to the transverse support column 12 through the transverse slide groove. By setting the transverse slide groove, the transverse sliding block 17 can move laterally inside the transverse support column 12;

[0039] Here, the operation of the second driving motor 15 enables the second transverse threaded rod 16 to rotate, and the rotation of the second transverse threaded rod 16 enables the transverse sliding block 17 to move inside the transverse supporting column 12. The movement of the transverse sliding block 17 enables the oblique rotating plate 19 to drive the longitudinal rotating column 20 to rotate through the oblique rotating plate 18, thereby enabling the rectangular circuit board rack 2 to rotate, so that the circuit board inside the rectangular circuit board rack 2 can be rotated, so that the etching liquid on the surface of the circuit board can fall into the first liquid storage tank 3;

[0040] The cleaning mechanism includes two second hydraulic cylinders 23, both of which are located inside the etching box 1 and a vertical mounting plate 22 is fixed to the output end of the second hydraulic cylinder 23, a U-shaped frame 21 is fixed to one end of the vertical mounting plate 22, a cleaning spray pipe 24 is arranged inside the U-shaped frame 21, and a vertical scraper 25 is arranged inside the U-shaped frame 21 and on one side of the cleaning spray pipe 24;

[0041] Here, the operation of the second hydraulic cylinder 23 enables the U-shaped frame 21 to move inside the etching box 1, so that the cleaning spray pipe 24 can spray cleaning liquid on the surface of the rotated circuit board, and the vertical scraper 25 can scrape off excess liquid from the surface of the rotated circuit board, so that the surface of the etched circuit board can be cleaned to prevent a large amount of etching liquid from existing on the surface of the etched circuit board, and the liquid sprayed by the cleaning spray pipe 24 can fall into the interior of the second liquid storage tank 4, so that the liquid can be collected.

[0042] When in use: the operation of the first driving motor 8 enables the first transverse threaded rod 9 to rotate, and the rotation of the first transverse threaded rod 9 enables the transverse moving block 11 to slide on the outside of the transverse guide roller 10, and then the rectangular circuit board rack 2 can be moved inside the etching box 1 through the longitudinal rotating column 20. When the rectangular circuit board rack 2 moves to the bottom of the etching spray pipe 6, the etching spray pipe 6 can spray the etching liquid so that the circuit board can be etched;

[0043] The operation of the second driving motor 15 enables the second transverse threaded rod 16 to rotate, and the rotation of the second transverse threaded rod 16 enables the transverse sliding block 17 to move inside the transverse supporting column 12. The movement of the transverse sliding block 17 enables the oblique rotating plate 19 to drive the longitudinal rotating column 20 to rotate through the oblique rotating plate 18, thereby enabling the rectangular circuit board rack 2 to rotate, so that the circuit board inside the rectangular circuit board rack 2 can be rotated, so that the etching liquid on the surface of the circuit board can fall into the first liquid storage tank 3;

[0044] The first drive motor 8 operates again, so that the rectangular circuit board rack 2 can move to the top of the second liquid storage tank 4, and the second hydraulic cylinder 23 operates, so that the U-shaped frame 21 can move inside the etching box 1, so that the cleaning spray pipe 24 can spray cleaning liquid on the surface of the rotated circuit board, and the vertical scraper 25 can scrape off excess liquid from the surface of the rotated circuit board, so that the surface of the etched circuit board can be cleaned to prevent a large amount of etching liquid from existing on the surface of the etched circuit board, and the liquid sprayed by the cleaning spray pipe 24 can fall into the inside of the second liquid storage tank 4, so that the liquid can be collected.

[0045] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An etching device for producing composite thermal conductive PCB circuit boards, characterized in that: The etching box (1) comprises an etching box (1), wherein a movable rectangular circuit board rack (2) is arranged inside the etching box (1), a moving mechanism for moving the rectangular circuit board rack (2) is arranged on one side inside the etching box (1), an etching spray pipe (6) is arranged inside the etching box (1) and located on the top of the rectangular circuit board rack (2), a first liquid storage tank (3) is arranged at the bottom of the etching spray pipe (6) and located inside the etching box (1), a second liquid storage tank (4) is arranged at one end of the first liquid storage tank (3), and a partition plate (5) is arranged between the first liquid storage tank (3) and the second liquid storage tank (4) and located inside the etching box (1); A cleaning mechanism for cleaning the circuit board is arranged at one end inside the etching box (1).

2. The etching device for producing a composite thermal conductive PCB circuit board according to claim 1, characterized in that: A first hydraulic cylinder (13) is fixed at both ends of the rectangular circuit board frame (2), a rectangular clamping block (14) is fixed at the output end of the first hydraulic cylinder (13), and the rectangular clamping block (14) is located inside the rectangular circuit board frame (2) and is slidably connected to the rectangular circuit board frame (2).

3. The etching device for producing a composite thermal conductive PCB circuit board according to claim 1, characterized in that: The moving mechanism comprises two rectangular fixed plates (7), both ends of the inner side of the etching box (1) are fixed with rectangular fixed plates (7), one end of the rectangular fixed plate (7) is bolted with a first driving motor (8), the output end of the first driving motor (8) is fixed with a first transverse threaded rod (9), the outer side of the first transverse threaded rod (9) is threadedly connected with a transverse moving block (11), one side of the transverse moving block (11) is rotatably connected with a longitudinal rotating column (20) through a bearing, one side of the longitudinal rotating column (20) is fixedly connected with a rectangular circuit board frame (2), one end of the transverse moving block (11) is fixed with a transverse supporting column (12), and a rotating component for rotating the longitudinal rotating column (20) is arranged inside the transverse supporting column (12).

4. The etching device for producing a composite thermal conductive PCB circuit board according to claim 3, characterized in that: A transverse guide roller (10) is slidably connected inside the transverse moving block (11), and the transverse guide roller (10) is close to one side of the etching box (1) and is fixedly connected to the etching box (1).

5. The etching device for producing a composite thermal conductive PCB circuit board according to claim 3, characterized in that: The rotating assembly comprises a second driving motor (15), one end of the transverse support column (12) is bolted with the second driving motor (15), the output end of the second driving motor (15) is fixed with a second transverse threaded rod (16), the outer side of the second transverse threaded rod (16) is threadedly connected with a transverse sliding block (17), one side of the transverse sliding block (17) is rotatably connected with an oblique rotating plate (18) through a pin shaft, one end of the oblique rotating plate (18) is rotatably connected with an oblique rotating plate (19) through a pin shaft, and the oblique rotating plate (19) is sleeved on the outer side of the longitudinal rotating column (20) and is fixedly connected to the longitudinal rotating column (20).

6. The etching device for producing a composite heat-conducting PCB circuit board according to claim 5, characterized in that: A transverse sliding groove is provided inside the transverse support column (12), and the transverse sliding block (17) is located inside the transverse sliding groove of the transverse support column (12) and is slidably connected to the transverse support column (12) via the transverse sliding groove.

7. The etching device for producing a composite thermal conductive PCB circuit board according to claim 1, characterized in that: The cleaning mechanism comprises two second hydraulic cylinders (23), the two second hydraulic cylinders (23) are both located inside the etching box (1), and a vertical mounting plate (22) is fixed to the output end of the second hydraulic cylinder (23), a U-shaped frame (21) is fixed to one end of the vertical mounting plate (22), a cleaning spray pipe (24) is arranged inside the U-shaped frame (21), and a vertical scraper (25) is arranged inside the U-shaped frame (21) and on one side of the cleaning spray pipe (24).

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