A pickling and toning device for copper parts

Abstract

The utility model discloses a kind of copper piece surface pickling tonification devices, including passivation tank, the passivation tank bottom is installed ultrasonic transducer, the passivation tank bottom is provided with temperature sensor, temperature sensor is located at the both sides of ultrasonic transducer, passivation tank side is provided with filter tank, the cover is set on the filter tank, filter tank inside is fixedly connected with filter core, passivation tank outer wall is provided with interlayer, the interlayer inside is provided with heater, passivation tank top side is fixedly connected with driving motor, passivation tank inside is rotatably connected with stirrer, the top of stirrer is connected with the shaft of driving motor, passivation tank inner wall is fixedly connected with placing frame, spray pipe group is inserted in the bottom of placing frame, spray pipe group bottom is connected with connecting pipe, pump body and check valve are set on connecting pipe, one end of connecting pipe is connected with passivation tank. The device can shorten the time of copper piece passivation while ensuring the passivation effect of copper piece, improve the efficiency of copper piece passivation treatment.

Description

Technical Field

[0001] This utility model relates to the field of copper pickling technology, specifically to a copper surface pickling and tempering device. Background Technology

[0002] Pickling and passivation treatment of copper parts is mainly to remove surface oxides, rust and other possible contaminants, and form a protective passivation film, thereby improving the corrosion resistance and aesthetics of the copper parts.

[0003] Currently, the surface treatment process for copper parts requires sequential pickling, rinsing, polishing, rinsing, passivation, rinsing, and drying. During the passivation process, the existing passivation method usually involves directly immersing the copper parts in a passivation bath. However, it takes a certain amount of time for the passivation solution to fully contact the surface of the copper parts, resulting in slow passivation efficiency. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a copper surface pickling and passivation device to solve the problems of long passivation time and low efficiency of copper parts mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a copper surface pickling and passivation device, comprising a passivation box, an ultrasonic transducer installed at the bottom of the passivation box, a sandwich layer provided on the outer wall of the passivation box, a heater provided inside the sandwich layer, a drive motor fixedly connected to the top side of the passivation box, a stirrer rotatably connected inside the passivation box, the top of the stirrer connected to the shaft of the drive motor, a placement frame fixedly connected to the inner wall of the passivation box, a nozzle assembly inserted at the bottom of the placement frame, a connecting pipe connected to the bottom of the nozzle assembly, a pump body and a one-way valve provided on the connecting pipe, and one end of the connecting pipe connected to the passivation box.

[0006] Preferably, a temperature sensor is provided at the bottom of the passivation box, and the temperature sensor is located on both sides of the ultrasonic transducer. A filter box is provided on one side of the passivation box.

[0007] Preferably, the filter box is provided with a cover, a filter element is fixedly connected inside the filter box, a circulation pipe is connected to one side of the filter box, a circulation pump is provided on the circulation pipe, and one end of the circulation pipe is connected to the passivation box.

[0008] Preferably, an output pipe is connected to one side of the passivation box, and an output pump is installed on the output pipe. One end of the output pipe passes through the top of the filter box and corresponds to the position of the filter element.

[0009] Preferably, the stirrers are symmetrically distributed about the bisector of the passivation box, and the stirrers are located on both sides of the placement frame.

[0010] Preferably, the placement frame has a mesh structure, the placement frame is fixedly connected to the nozzle assembly, and multiple branch pipes are provided on the top of the nozzle assembly.

[0011] Preferably, the passivation box has an opening at the top, and a sealing cover is hinged to the opening. A passivation liquid input pipe is connected to the other side of the passivation box, and solenoid valves are installed on the passivation liquid input pipe, output pipe and circulation pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) This device can shorten the passivation time of copper parts while ensuring the passivation effect of copper parts, and improve the efficiency of copper part passivation treatment.

[0014] (2) This device sets an ultrasonic transducer at the bottom of the passivation box and a nozzle assembly at the bottom of the placement frame inside the passivation box. The ultrasonic transducer can convert electrical energy into mechanical energy to achieve high-frequency vibration of the passivation liquid in the passivation box, so that the passivation liquid can fully contact the copper parts in the placement frame. At the same time, the nozzle assembly can input a portion of the passivation liquid from the bottom of the placement frame, so that the passivation liquid can fully contact the bottom of the copper parts, thereby improving the passivation efficiency of the copper parts.

[0015] (3) This device sets a heater in the jacket of the passivation box and a stirrer inside the passivation box to keep the passivation liquid at a suitable temperature. The stirring of the stirrer improves the full contact between the passivation liquid and the copper parts, shortens the passivation time, and improves the passivation efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a copper surface pickling and tempering device according to the present invention;

[0017] Figure 2 This is a cross-sectional view of a copper surface pickling and tempering device according to the present invention;

[0018] Figure 3 This is a top view of the connection between the placement frame and the nozzle assembly of the pickling and tempering device for copper parts according to this utility model.

[0019] Figure 4 This is a top view of the nozzle assembly of a copper surface pickling and tempering device according to the present invention.

[0020] In the diagram: 1. Passivation liquid inlet pipe; 2. Passivation box; 3. Drive motor; 4. Sealing cover; 5. Circulation pipe; 6. Output pipe; 7. Filter box; 8. Output pump; 9. Solenoid valve; 10. Circulation pump; 11. Stirrer; 12. Filter element; 13. Heater; 14. Temperature sensor; 15. Ultrasonic transducer; 16. Placement frame; 17. Connecting pipe; 18. Nozzle assembly; 19. Pump body; 20. Check valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This utility model provides a technical solution: a copper surface pickling and passivation device, including a passivation box 2, an ultrasonic transducer 15 installed at the bottom of the passivation box 2, and a temperature sensor 14 installed at the bottom of the passivation box 2. The temperature sensor 14 is fixed to the bottom of the passivation box 2 by bolts. The temperature sensor 14 can detect the passivation liquid inside the passivation box 2, and control the heater 13 to adjust it in time so that the temperature of the passivation liquid inside the passivation box 2 is always within a suitable temperature range. The jacketed heater 13 (silicone heating element recommended) uniformly heats the passivation liquid through heat conduction. The temperature sensor 14 monitors in real time with an accuracy of ±1℃. The temperature sensor 14 and the heater 13 are controlled by a PLC. Safety redundancy: forced temperature control when the temperature exceeds 60℃. The heater is turned off and an alarm sounds. Temperature sensors 14 are located on both sides of the ultrasonic transducer 15, which is fixed to the bottom of the passivation box 2 with bolts. A filter box 7 is installed on one side of the passivation box 2. The ultrasonic transducer 15 is connected to an ultrasonic generator, which converts ordinary frequency current into high frequency current. This high frequency electrical signal is transmitted to the ultrasonic transducer 15. After receiving the high frequency electrical signal, the ultrasonic transducer converts electrical energy into mechanical vibration through the inverse piezoelectric effect, thereby causing the passivation liquid in the passivation box 2 to vibrate at high frequency and make full contact with the copper parts. An output pipe 6 is connected to one side of the passivation box 2, and an output pump 8 is installed on the output pipe 6. One end of the output pipe 6 passes through the top of the filter box 7 and the filter element 12. Correspondingly, this structure uses an output pump 8 to discharge the passivation liquid inside the passivation tank 2 for filtration and recycling, achieving cost savings. The filter tank 7 is equipped with a cover, and a filter element 12 is fixedly connected inside. The filter element 12 is bolted to the filter tank 7 and is made of polypropylene (PP). Polypropylene (PP) filter elements have good corrosion resistance, ensuring filtration while maintaining a certain service life. A circulation pipe 5 is connected to one side of the filter tank 7, and a circulation pump 10 is installed on the circulation pipe 5. One end of the circulation pipe 5 is connected to the passivation tank 2. This structure uses the circulation pump 10 to input the filtered passivation liquid into the passivation tank 2 for reuse. The top of the passivation tank 2 has an opening, and a sealing device is hinged to the opening. The passivation tank 2 is sealed with a cap 4. A passivation liquid inlet pipe 1 is connected to the other side of the passivation tank 2. The passivation liquid inlet pipe 1 is used to replenish the passivation liquid. Solenoid valves 9 are installed on the passivation liquid inlet pipe 1, outlet pipe 6, and circulation pipe 5. These solenoid valves 9 can automatically control the opening and closing of the passivation liquid inlet pipe 1, outlet pipe 6, and circulation pipe 5. A jacket is provided on the outer wall of the passivation tank 2, and a heater 13 is installed inside the jacket. A drive motor 3 is fixedly connected to the top of the passivation tank 2. The drive motor 3 can be controlled by a PLC to ensure control accuracy and coordination between devices. An agitator 11 is rotatably connected inside the passivation tank 2. The agitators 11 are symmetrically distributed about the bisector of the passivation tank 2. The drive motor 3 drives two sets of agitators 11 to rotate at low speed (20-40 rpm), and the blades push the passivation liquid to form a horizontal vortex.To prevent metal ions from depositing on the copper surface, an avoidance design is employed: stirrers are symmetrically distributed on both sides of the placement frame 16 to prevent collisions with the copper parts. Stirrers 11 are located on both sides of the placement frame 16. This structure allows the stirrers 11 to drive the flow of the passivation liquid inside the passivation tank 2, improving the contact effect between the passivation liquid and the copper parts. The placement frame 16 has a mesh structure and is fixedly connected to the nozzle assembly 18. Multiple branch pipes are provided at the top of the nozzle assembly 18. This structure allows the passivation liquid to be evenly distributed at the bottom of the placement frame 16 and in contact with the bottom of the copper parts, improving the adequacy of contact. The top of the stirrer 11 is connected to the shaft of the drive motor 3. The placement frame 16 is fixedly connected to the inner wall of the passivation tank 2. The nozzle assembly 18 is inserted into the bottom of the placement frame 16, and a connecting pipe 17 is connected to the bottom of the nozzle assembly 18. The device is equipped with a pump body 19 and a one-way valve 20. The pump body 19 is automatically controlled by a PLC, and the one-way valve 20 prevents backflow. The branch pipe of the nozzle assembly 18 sprays liquid upwards, penetrating the mesh of the placement frame 16 and directly impacting the bottom of the copper part. One end of the connecting pipe 17 is connected to the passivation box 2. A filter screen is installed inside the connecting pipe 17 connected to the passivation box 2 to prevent clogging inside the connecting pipe 17 and the pump body 19. The pump body 19 can spray the passivation liquid in the passivation box 2 onto the bottom of the placement frame 16 through the connecting pipe 17 and the nozzle assembly 18, allowing the passivation liquid to fully contact the bottom of the copper part. During use, the copper part can be manually added to the placement frame 16 using a clamp, or an automated loading and unloading can be achieved using a robotic arm combined with a clamp. The passivation step in this application is a process following pickling, rinsing, and polishing of the copper part.

[0023] Working principle: When using the copper surface pickling and passivation device, first open the sealing cover 4, then place the copper part inside the placement frame 16. During the passivation process, the drive motor 3 drives the stirrer 11 to rotate automatically. At the same time, the heater 13 heats the passivation liquid to a suitable temperature, while the pump body 19 draws the passivation liquid from the passivation tank 2 and sprays it onto the bottom of the copper part inside the placement frame 16 through the connecting pipe 17 and the spray nozzle assembly 18, improving the contact effect between the copper part and the passivation liquid. When the passivation liquid inside the passivation tank 2 needs to be treated, the output pump 8 and the circulation pump 10 are turned on, so that the passivation liquid inside the passivation tank 2 is drawn into the filter box 7 for filtration and then re-enters the passivation tank 2 through the circulation pipe 5 for use.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A copper surface pickling and passivation apparatus, comprising a passivation chamber (2), characterized in that: An ultrasonic transducer (15) is installed at the bottom of the passivation box (2). An interlayer is provided on the outer wall of the passivation box (2). A heater (13) is provided inside the interlayer. A drive motor (3) is fixedly connected to the top side of the passivation box (2). A stirrer (11) is rotatably connected inside the passivation box (2). The top of the stirrer (11) is connected to the shaft of the drive motor (3). A placement frame (16) is fixedly connected to the inner wall of the passivation box (2). A nozzle assembly (18) is inserted at the bottom of the placement frame (16). A connecting pipe (17) is connected to the bottom of the nozzle assembly (18). A pump body (19) and a one-way valve (20) are provided on the connecting pipe (17). One end of the connecting pipe (17) is connected to the passivation box (2).

2. The copper surface pickling and tempering apparatus according to claim 1, characterized in that: A temperature sensor (14) is provided at the bottom of the passivation box (2). The temperature sensor (14) is located on both sides of the ultrasonic transducer (15). A filter box (7) is provided on one side of the passivation box (2).

3. The copper surface pickling and tempering apparatus according to claim 2, characterized in that: The filter box (7) is provided with a cover, and a filter element (12) is fixedly connected inside the filter box (7). A circulation pipe (5) is connected to one side of the filter box (7), and a circulation pump (10) is provided on the circulation pipe (5). One end of the circulation pipe (5) is connected to the passivation box (2).

4. The copper surface pickling and tempering apparatus according to claim 1, characterized in that: The passivation box (2) is connected to an output pipe (6) on one side, and an output pump (8) is installed on the output pipe (6). One end of the output pipe (6) passes through the top of the filter box (7) and corresponds to the position of the filter element (12).

5. The copper surface pickling and tempering apparatus according to claim 1, characterized in that: The stirrers (11) are symmetrically distributed about the bisector of the passivation box (2), and the stirrers (11) are located on both sides of the placement frame (16).

6. The copper surface pickling and tempering apparatus according to claim 1, characterized in that: The placement frame (16) has a mesh structure and is fixedly connected to the nozzle assembly (18). The nozzle assembly (18) has multiple branch pipes on its top.

7. The copper surface pickling and tempering apparatus according to claim 1, characterized in that: The passivation box (2) has an opening at the top, and a sealing cover (4) is hinged to the opening. The passivation liquid input pipe (1) is connected to the other side of the passivation box (2). Solenoid valves (9) are installed on the passivation liquid input pipe (1), output pipe (6) and circulation pipe (5).

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