A PCB micro-etching liquid automatic circulation treatment device

Abstract

The utility model relates to the technical field of micro-etching liquid treatment, and discloses an automatic circulation treatment device for micro-etching liquid of a PCB board, comprising an electrolytic box, the left end of which is connected to a feed pipe, one end of which is equipped with a first valve, and the inner wall of the electrolytic box is fixedly connected to an anode plate. The utility model uses a first water pump to enable a first extraction pipe to extract micro-etching liquid inside the electrolytic box, and transports it to the inside of a mixing box through a first delivery pipe, and uses a second water pump to enable a second extraction pipe to extract hydrogen peroxide inside a hydrogen peroxide storage tank, and transports it to the inside of the mixing box through a second delivery pipe, and then drives a transmission shaft to rotate through a motor, so that a fixed rod rotates, and drives a stirring rod to stir the micro-etching liquid and hydrogen peroxide, so that the liquids are fully mixed, thereby improving the efficiency of micro-etching liquid treatment, reducing manual intervention, and improving the efficiency of micro-etching liquid treatment during use, and discharges the treated micro-etching liquid through a discharge pipe, which is convenient for subsequent recycling.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-etching liquid treatment, in particular to an automatic circulation treatment device for micro-etching liquid of a PCB board. Background Art

[0002] Micro-etching waste liquid refers to the waste solution produced after the surface of copper foil is roughened using micro-etching liquid in the manufacturing process of electronic circuit boards. The micro-etching liquid usually contains strong oxidants such as sodium persulfate, ammonium persulfate or hydrogen peroxide. These oxidants can oxidize the metal on the copper surface into oxidized metal, and then use sulfuric acid to strip the oxidized copper.

[0003] At present, most manufacturers process and recycle micro-etching liquid by electrolysis. However, the existing electrolysis method has poor effect on the treatment of micro-etching liquid, and the treatment of micro-etching liquid often involves manual operation, which is not only inefficient but also poses certain risks to the health of operators. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a PCB board micro-etching liquid automatic circulation processing device.

[0005] The utility model is implemented by the following technical scheme: an automatic circulation treatment device for micro-etching liquid of a PCB board, comprising an electrolytic box, a feed pipe is connected to the left end of the electrolytic box, a first valve is installed at one end of the feed pipe, an anode plate is fixedly connected to the inner wall of the electrolytic box, a cathode plate is fixedly connected to the inner wall of the electrolytic box, a first mounting plate is fixedly connected to one end of the electrolytic box, a first water pump is fixedly connected to the upper surface of the first mounting plate, a first extraction pipe is connected to the left end of the first water pump, a first delivery pipe is connected to the right end of the first water pump, a mixing box is arranged at one end of the electrolytic box, a mounting seat is fixedly connected to the right end of the mixing box, a motor is fixedly connected to the upper surface of the mounting seat, a transmission shaft is fixedly connected to the output end of the motor, a fixed rod is fixedly connected to the end of the transmission shaft away from the motor, a plurality of stirring rods are fixedly connected to the surface of the fixed rod, and a hydrogen peroxide storage tank is arranged at the right end of the mixing box.

[0006] Through the above technical solution, the transmission shaft is driven by the motor to rotate, so that the fixed rod rotates, driving several stirring rods to rotate, ensuring that the micro-etching liquid and chemical agents are fully mixed, thereby improving the uniformity and efficiency of the chemical reaction.

[0007] As a further improvement of the above scheme, the number of the anode plates and the cathode plates are both set to be several, one end of the first extraction pipe passes through the electrolytic box and extends to the inside of the electrolytic box, and one end of the first delivery pipe passes through the mixing box and extends to the inside of the mixing box.

[0008] Through the above technical solution, the electrolytic cell is formed by the anode plate and the cathode plate, and the micro-etching liquid can be processed efficiently.

[0009] As a further improvement of the above solution, a groove is provided at the upper end of the electrolytic box, a sealing gasket is provided on the inner wall of the groove, and a box cover is provided on the top of the electrolytic box.

[0010] Through the above technical solution, the box cover and the sealing gasket are used in combination to reduce the evaporation and leakage of micro-etching liquid and chemical agents, protect the safety of operators and reduce environmental pollution.

[0011] As a further improvement of the above solution, the lower end of the box cover contacts the surface of the sealing gasket, the inner wall of the box cover is threadedly connected with a threaded rod, and the threaded rod penetrates the box cover and is threadedly connected to the inner wall of the electrolytic box.

[0012] As a further improvement of the above solution, the surface of the fixing rod is rotatably connected to the inner wall of the mixing box, and the stirring rod is located inside the mixing box.

[0013] As a further improvement of the above scheme, the rear end of the mixing box is fixedly connected to a second mounting plate, the upper surface of the second mounting plate is fixedly connected to a second water pump, one end of the second water pump is connected to a second extraction pipe, and one end of the second water pump is connected to a second delivery pipe.

[0014] Through the above technical solution, the second extraction pipe extracts the hydrogen peroxide in the hydrogen peroxide storage tank through the second water pump and delivers it to the inside of the mixing box through the second delivery pipe, thereby improving convenience during use.

[0015] As a further improvement of the above solution, one end of the second extraction pipe passes through the hydrogen peroxide storage tank and extends to the interior of the hydrogen peroxide storage tank, one end of the second delivery pipe passes through the mixing box and extends to the interior of the mixing box, the front end of the mixing box is connected to a discharge pipe, and a second valve is installed at one end of the discharge pipe.

[0016] Through the above technical solution, the treated micro-etching liquid is discharged through the discharge pipe, which is convenient for recycling and utilization of the micro-etching liquid.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model is provided with a mixing box, a motor, a transmission shaft, a fixed rod and a stirring rod. Specifically, the micro-etching liquid is electrolyzed through an anode plate and a cathode plate. After the micro-etching liquid is electrolyzed, a first water pump is used to enable a first extraction pipe to extract the micro-etching liquid in the electrolysis box, and the micro-etching liquid is transported to the inside of the mixing box through a first delivery pipe. A second water pump is used to enable a second extraction pipe to extract hydrogen peroxide in a hydrogen peroxide storage tank, and the hydrogen peroxide is transported to the inside of the mixing box through a second delivery pipe. Then, the transmission shaft is driven to rotate by the motor, so that the fixed rod rotates, and the stirring rod is driven to stir the micro-etching liquid and the hydrogen peroxide, so that the liquids are fully mixed, thereby improving the efficiency of the micro-etching liquid treatment, reducing manual intervention, and improving the efficiency of the micro-etching liquid treatment during use. The treated micro-etching liquid is discharged through a discharge pipe, which is convenient for subsequent recycling.

[0019] The utility model provides a box cover, a threaded rod and a sealing ring, specifically, the box cover can be disassembled by disassembling the threaded rod, so that the anode plate and the cathode plate inside the electrolytic box can be repaired and replaced, thereby improving the convenience during use; and through the surface contact between the box cover and the sealing gasket, the sealing effect of the electrolytic box is improved, the evaporation and leakage of micro-etching liquid and chemical agents are reduced, the safety of operators is protected and the pollution to the environment is reduced. 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 overall cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the explosion structure of the electrolytic box of the utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure of the mixing box of the utility model;

[0024] Figure 5 It is a schematic diagram of the overall top view structure of the utility model.

[0025] Description of main symbols:

[0026] 1. Electrolytic box; 2. Feed pipe; 3. First valve; 4. Anode plate; 5. Cathode plate; 6. Groove; 7. Sealing gasket; 8. Box cover; 9. Threaded rod; 10. First mounting plate; 11. First water pump; 12. First extraction pipe; 13. First delivery pipe; 14. Mixing box; 15. Mounting seat; 16. Motor; 17. Transmission shaft; 18. Fixed rod; 19. Stirring rod; 20. Hydrogen peroxide storage tank; 21. Second mounting plate; 22. Second water pump; 23. Second extraction pipe; 24. Second delivery pipe; 25. Discharge pipe; 26. Second valve. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] Example:

[0029] Please combine Figure 1-5 , a PCB board micro-etching liquid automatic circulation treatment device of the present embodiment comprises an electrolytic box 1, the left end of the electrolytic box 1 is connected with a feed pipe 2, one end of the feed pipe 2 is installed with a first valve 3, the inner wall of the electrolytic box 1 is fixedly connected with an anode plate 4, the inner wall of the electrolytic box 1 is fixedly connected with a cathode plate 5, one end of the electrolytic box 1 is fixedly connected with a first mounting plate 10, the upper surface of the first mounting plate 10 is fixedly connected with a first water pump 11, the left end of the first water pump 11 is connected with a first extraction pipe 12, the right end of the first water pump 11 is connected with a first delivery pipe 13, one end of the electrolytic box 1 is provided with a mixing box 14, the right end of the mixing box 14 is fixedly connected with a mounting seat 15, the upper surface of the mounting seat 15 is fixedly connected with a motor 16, the output end of the motor 16 is fixedly connected with a transmission shaft 17, and the end of the transmission shaft 17 away from the motor 16 is fixedly connected with a fixing rod 1 8. A plurality of stirring rods 19 are fixedly connected to the surface of the fixed rod 18. A hydrogen peroxide storage tank 20 is provided at the right end of the mixing box 14. The micro-etching liquid is electrolyzed by the anode plate 4 and the cathode plate 5. After the micro-etching liquid is electrolyzed, the first extraction pipe 12 is used to extract the micro-etching liquid in the electrolysis box 1 through the first water pump 11, and the micro-etching liquid is transported to the inside of the mixing box 14 through the first delivery pipe 13. The second extraction pipe 23 is used to extract the hydrogen peroxide in the hydrogen peroxide storage tank 20 through the second water pump 22, and the hydrogen peroxide is transported to the inside of the mixing box 14 through the second delivery pipe 24. Then, the transmission shaft 17 is driven to rotate by the motor 16, so that the fixed rod 18 rotates, and the stirring rod 19 is driven to stir the micro-etching liquid and hydrogen peroxide, so that the liquids are fully mixed, thereby improving the efficiency of the micro-etching liquid treatment, reducing manual intervention, and improving the efficiency of the micro-etching liquid treatment during use.

[0030] There are a plurality of anode plates 4 and cathode plates 5 . One end of the first extraction pipe 12 passes through the electrolytic box 1 and extends to the inside of the electrolytic box 1 . One end of the first delivery pipe 13 passes through the mixing box 14 and extends to the inside of the mixing box 14 .

[0031] A groove 6 is provided at the upper end of the electrolytic box 1 , a sealing gasket 7 is provided on the inner wall of the groove 6 , and a box cover 8 is provided on the top of the electrolytic box 1 .

[0032] The lower end of the box cover 8 is in contact with the surface of the sealing gasket 7, and the inner wall of the box cover 8 is threadedly connected with a threaded rod 9, which penetrates the box cover 8 and is threadedly connected to the inner wall of the electrolytic box 1. The box cover 8 can be disassembled by removing the threaded rod 9, which is convenient for repairing and replacing the anode plate 4 and the cathode plate 5 inside the electrolytic box 1, thereby improving convenience during use. In addition, the box cover 8 is in contact with the surface of the sealing gasket 7, which improves the sealing effect of the electrolytic box 1, reduces the evaporation and leakage of micro-etching liquid and chemical agents, protects the safety of operators and reduces pollution to the environment.

[0033] The surface of the fixing rod 18 is rotatably connected to the inner wall of the mixing box 14 , and the stirring rod 19 is located inside the mixing box 14 .

[0034] The rear end of the mixing box 14 is fixedly connected to a second mounting plate 21 , the upper surface of the second mounting plate 21 is fixedly connected to a second water pump 22 , one end of the second water pump 22 is connected to a second extraction pipe 23 , and one end of the second water pump 22 is connected to a second delivery pipe 24 .

[0035] One end of the second extraction pipe 23 passes through the hydrogen peroxide storage tank 20 and extends to the interior of the hydrogen peroxide storage tank 20, one end of the second delivery pipe 24 passes through the mixing box 14 and extends to the interior of the mixing box 14, the front end of the mixing box 14 is connected to a discharge pipe 25, one end of the discharge pipe 25 is installed with a second valve 26, the treated micro-etching liquid is discharged through the discharge pipe 25, and it is convenient for subsequent recycling.

[0036] The implementation principle of the automatic circulation treatment device for micro-etching liquid of a PCB board in the embodiment of the present application is as follows: the micro-etching liquid is added into the interior of the electrolytic box 1 through the feed pipe 2, and the micro-etching liquid is electrolyzed through the anode plate 4 and the cathode plate 5. After the micro-etching liquid is electrolyzed, the first extraction pipe 12 is used to extract the micro-etching liquid inside the electrolytic box 1 through the first water pump 11, and the micro-etching liquid is transported to the interior of the mixing box 14 through the first delivery pipe 13. The hydrogen peroxide inside the hydrogen peroxide storage tank 20 is extracted by the second extraction pipe 23 through the second water pump 22, and the hydrogen peroxide is transported to the interior of the mixing box 14 through the second delivery pipe 24. Then, the transmission shaft 17 is driven to rotate by the motor 16, so that the fixing rod 18 rotates. The stirring rod 19 is driven to stir the micro-etching liquid and the hydrogen peroxide solution, so that the liquids are fully mixed, thereby improving the efficiency of the micro-etching liquid treatment, reducing manual intervention, and improving the efficiency of the micro-etching liquid treatment during use. The treated micro-etching liquid is discharged through the discharge pipe 25, which is convenient for subsequent recycling. The box cover 8 can be disassembled by removing the threaded rod 9, which is convenient for repairing and replacing the anode plate 4 and the cathode plate 5 inside the electrolytic box 1, thereby improving the convenience during use. The box cover 8 is in contact with the surface of the sealing gasket 7, so as to improve the sealing effect of the electrolytic box 1, reduce the evaporation and leakage of the micro-etching liquid and chemical agents, protect the safety of the operator and reduce the pollution to the environment.

[0037] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A PCB micro-etching liquid automatic circulation treatment device, characterized in that: The invention comprises an electrolytic box (1), wherein the left end of the electrolytic box (1) is connected to a feed pipe (2), one end of the feed pipe (2) is installed with a first valve (3), the inner wall of the electrolytic box (1) is fixedly connected to an anode plate (4), the inner wall of the electrolytic box (1) is fixedly connected to a cathode plate (5), one end of the electrolytic box (1) is fixedly connected to a first mounting plate (10), the upper surface of the first mounting plate (10) is fixedly connected to a first water pump (11), the left end of the first water pump (11) is connected to a first extraction pipe (12), and the right end of the first water pump (11) is connected to a first extraction pipe (12). A first delivery pipe (13) is provided, a mixing box (14) is provided at one end of the electrolytic box (1), a mounting seat (15) is fixedly connected to the right end of the mixing box (14), a motor (16) is fixedly connected to the upper surface of the mounting seat (15), an output end of the motor (16) is fixedly connected to a transmission shaft (17), an end of the transmission shaft (17) away from the motor (16) is fixedly connected to a fixing rod (18), a surface of the fixing rod (18) is fixedly connected to a plurality of stirring rods (19), and a hydrogen peroxide storage tank (20) is provided at the right end of the mixing box (14).

2. The automatic circulation treatment device for micro-etching liquid of a PCB board according to claim 1, characterized in that: The number of the anode plates (4) and the cathode plates (5) is set to be several, one end of the first extraction pipe (12) passes through the electrolytic box (1) and extends to the interior of the electrolytic box (1), and one end of the first delivery pipe (13) passes through the mixing box (14) and extends to the interior of the mixing box (14).

3. The automatic circulation treatment device for micro-etching liquid of a PCB board according to claim 2, characterized in that: A groove (6) is provided at the upper end of the electrolytic box (1), a sealing gasket (7) is provided on the inner wall of the groove (6), and a box cover (8) is provided on the top of the electrolytic box (1).

4. The automatic circulation treatment device for micro-etching liquid of a PCB board as claimed in claim 3, characterized in that: The lower end of the box cover (8) contacts the surface of the sealing gasket (7), and the inner wall of the box cover (8) is threadedly connected to a threaded rod (9), which passes through the box cover (8) and is threadedly connected to the inner wall of the electrolytic box (1).

5. The automatic circulation treatment device for micro-etching liquid of PCB board according to claim 1, characterized in that: The surface of the fixing rod (18) is rotatably connected to the inner wall of the mixing box (14), and the stirring rod (19) is located inside the mixing box (14).

6. The automatic circulation treatment device for micro-etching liquid of a PCB board as claimed in claim 5, characterized in that: The rear end of the mixing box (14) is fixedly connected to a second mounting plate (21), the upper surface of the second mounting plate (21) is fixedly connected to a second water pump (22), one end of the second water pump (22) is connected to a second extraction pipe (23), and one end of the second water pump (22) is connected to a second delivery pipe (24).

7. The automatic circulation treatment device for micro-etching liquid of PCB board according to claim 6, characterized in that: One end of the second extraction pipe (23) passes through the hydrogen peroxide storage tank (20) and extends to the interior of the hydrogen peroxide storage tank (20), one end of the second delivery pipe (24) passes through the mixing box (14) and extends to the interior of the mixing box (14), the front end of the mixing box (14) is connected to a discharge pipe (25), and one end of the discharge pipe (25) is installed with a second valve (26).

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