Acid leaching jig for waste circuit board

By designing an acid leaching fixture for waste circuit boards, the problems of inconvenience in removing and piling up of circuit boards during the acid leaching process were solved, achieving stable fixation and efficient dissolution of the circuit boards and improving the recycling efficiency of copper materials.

CN223936564UActive Publication Date: 2026-02-24SUZHOU XINDA RESOURCE RECYCLING CO LTD
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Patent Information

Application Number
CN202520324514.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-02-24
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

During the acid leaching process, it is inconvenient to remove the waste circuit boards and they tend to accumulate, which affects the dissolution efficiency.

Method used

A fixture for acid immersion of waste circuit boards was designed, including a fixture body, a placement tank, a lifting rod, a holding rod, and springs. The circuit boards are fixed by the holding rod, and the fixture position is adjusted by the hanging ring and rope to achieve uniform arrangement and convenient removal of multiple circuit boards.

Benefits of technology

This improves the copper dissolution efficiency during the acid immersion process, ensuring the circuit board remains stable and fixed in the acid immersion bath, making it easy to remove and process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waste circuit board acid leaching jig, and relates to the technical field of circuit board recycling. The two side surfaces of the jig main body are provided with placing grooves; the side wall of the jig main body and one side of each placing groove are provided with a cylinder body; the bottom surface of the cylinder body is connected with a lifting rod in a penetrating and sliding manner; the top end of the lifting rod is fixedly connected with a convex plate, the bottom end of the lifting rod is fixedly connected with a hold-down rod, and a spring is arranged above the convex plate; the lower portion of the side wall of the lifting rod is rotationally sleeved with a rotating ring, the outer side wall of the rotating ring is fixedly connected with a handle, the side wall of the jig body is slidably connected with a movable plate in a penetrating mode, a notch is formed in the side wall of the handle in a penetrating mode, and the movable plate corresponds to and is matched with the notch. According to the acid leaching device disclosed by the utility model, acid leaching operation can be carried out on a plurality of waste circuit board bodies at one time, and the accumulation condition is avoided, so that the acid leaching efficiency is improved, and the circuit board bodies from which copper materials are dissolved out are convenient to take.
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Description

Technical Field

[0001] This utility model relates to the field of circuit board recycling technology, specifically to an acid immersion fixture for waste circuit boards. Background Technology

[0002] Waste circuit boards contain copper, and discarding them directly wastes this copper. The copper can be dissolved by acid leaching. Currently, acid leaching is usually done by placing the waste circuit board directly into the leaching tank for a certain period of time until the copper dissolves, and then removing the dissolved circuit board. This method is inconvenient to remove the circuit board, and the waste circuit board tends to accumulate in the leaching tank, which affects the dissolution efficiency. To address these issues, the inventors have proposed an acid leaching fixture for waste circuit boards. Utility Model Content

[0003] To address the current issues of difficulty in removing circuit boards after copper dissolution during acid leaching, and the accumulation of waste circuit boards in the acid leaching tank, this invention aims to provide an acid leaching fixture for waste circuit boards.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a waste circuit board acid leaching fixture, including a fixture body, with placement grooves on both sides of the fixture body, a cylinder on one side of the side wall of the fixture body and one side of the placement groove, a lifting rod slidably connected to the bottom surface of the cylinder, a protruding plate fixedly connected to the top of the lifting rod, a holding rod fixedly connected to the bottom of the lifting rod, a spring above the protruding plate, a rotating ring rotatably sleeved on the lower part of the side wall of the lifting rod, a handle fixedly connected to the outer side wall of the rotating ring, a movable plate slidably connected to the side wall of the fixture body, a slot through the side wall of the handle, and the movable plate corresponding to and cooperating with the slot.

[0005] Preferably, a fixing seat is provided on the side wall of the cylinder, and the side wall of the fixing seat is fixedly connected to the side wall of the fixture body. The protruding plate is located inside the cylinder, and the holding rod is located outside the cylinder. The cylinder is installed through the fixing seat, and the protruding plate can be raised and lowered inside the cylinder. When the protruding plate is not subjected to upward pushing force, it will be located at the bottom inside the cylinder under the action of spring force. A circuit board body is provided on one side of the fixture body. When the circuit board body needs to be acid-immersed, the circuit board body can be placed in the placement groove first. The holding rod can press and limit the circuit board body in the placement groove to prevent the circuit board body from easily falling out of the fixture body when acid-immersed in the acid immersion tank.

[0006] Preferably, the top end of the spring is fixedly connected to the inner top wall of the cylinder, the spring is fixedly connected to the top surface of the convex plate, a pin is inserted through the top surface of the handle, and the bottom end of the pin can extend into the slot. A through hole is provided through the top surface of the movable plate, and the pin corresponds to and cooperates with the through hole. When the circuit board body is supported by the fixture body, the handle is pulled upward, causing the holding rod to move upward. At this time, the convex plate will move upward under the push of the lifting rod, thereby compressing the spring. Then, the handle is rotated, and through the rotating ring, the handle is rotated to the movable plate. The movable plate is pulled towards the handle, so that the movable plate is inserted into the slot of the handle, thereby... The handle can be limited and fixed, which in turn limits the lifting rod, preventing the holding rod from falling under the spring force. By inserting the pin into the through hole, the limitation of the handle can be strengthened, preventing the movable plate from easily detaching from the handle. Then, the above operation is performed on multiple handles in sequence, causing the holding rod to rise. Next, the operator can free their hands to place the circuit board body in the placement slot. Then, the pin is removed, and the movable plate is pushed to disengage from the slot. The handle is then released, and under the action of the spring force, the lifting rod can fall, thereby allowing the holding rod to press and fix the circuit board body placed in the placement slot.

[0007] Preferably, a sleeve is fitted on the side wall of the holding rod, and a connecting plate is fixedly connected to the side wall of the sleeve. The side of the connecting plate away from the sleeve is fixedly connected to the side wall of the fixture body. The sleeve serves to guide the holding rod to prevent it from moving or shifting. A protruding ring is fixedly connected to the top surface of the fixture body, and a rope is fixedly attached to the side wall of the protruding ring. A hanging ring is fixedly connected to the end of the rope away from the protruding ring. Supports are fixedly connected to both sides of the top surface of the acid leaching tank, and a crossbar is placed on the top surface of the support. The hanging ring can be fitted onto the crossbar, and the position of the fixture body can be adjusted by moving the hanging ring so that multiple fixture bodies can be evenly distributed in the acid leaching tank.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: When dissolving the copper material on the waste circuit board body by acid leaching, the fixture body can support multiple waste circuit board bodies at one time, and the holding rod can press and fix the circuit board bodies placed on the fixture body to prevent the circuit board bodies from easily falling off the fixture body during acid leaching. The position of the fixture body can be adjusted by the movable hanging ring so that multiple fixture bodies can be evenly distributed in the acid leaching tank, thereby improving the acid leaching efficiency. After the acid leaching operation is completed, the circuit board bodies with dissolved copper material can be removed by the fixture body for further processing. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the fixture structure of this utility model.

[0012] Figure 3 This is an enlarged view of section A of this utility model.

[0013] Figure 4 This is a schematic diagram of the internal structure of the cylindrical body of this utility model.

[0014] In the diagram: 1. Acid leaching tank; 2. Support; 3. Crossbar; 4. Fixture body; 5. Convex ring; 6. Rope; 7. Hanging ring; 8. Cylinder; 9. Fixed seat; 10. Lifting rod; 11. Convex plate; 12. Circuit board body; 13. Spring; 14. Holding rod; 15. Rotating ring; 16. Handle; 17. Groove; 18. Pin; 19. Movable plate; 20. Through hole; 21. Sleeve; 22. Connecting plate. Detailed Implementation

[0015] 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.

[0016] Example: Figure 1-4 As shown, this utility model provides a waste circuit board acid immersion fixture, including a fixture body 4. Placement grooves are provided on both sides of the fixture body 4. A cylinder 8 is provided on the side wall of the fixture body 4 and on one side of the placement groove. A lifting rod 10 is slidably connected to the bottom surface of the cylinder 8. A protruding plate 11 is fixedly connected to the top of the lifting rod 10, and a holding rod 14 is fixedly connected to the bottom end of the lifting rod 10. A spring 13 is provided above the protruding plate 11. A rotating ring 15 is rotatably sleeved on the lower part of the side wall of the lifting rod 10. A handle 16 is fixedly connected to the outer side wall of the rotating ring 15. A movable plate 19 is slidably connected to the side wall of the fixture body 4. A slot 17 is provided through the side wall of the handle 16. The movable plate 19 corresponds to and cooperates with the slot 17.

[0017] A fixing seat 9 is provided on the side wall of the cylinder 8. The side wall of the fixing seat 9 is fixedly connected to the side wall of the fixture body 4. The protruding plate 11 is located inside the cylinder 8, and the pressing rod 14 is located outside the cylinder 8.

[0018] By adopting the above technical solution, an acid immersion tank 1 is provided on one side of the fixture body 4, the cylinder 8 is installed by a fixing seat 9, and the protruding plate 11 can be raised and lowered inside the cylinder 8. When the protruding plate 11 is not pushed upward, it will be located at the bottom inside the cylinder 8 under the action of the spring force of the spring 13. A circuit board body 12 is provided on one side of the fixture body 4. When the circuit board body 12 needs to be acid-immersed, the circuit board body 12 can be placed in the placement groove first. The pressing rod 14 can press and limit the circuit board body 12 in the placement groove to prevent the circuit board body 12 from easily falling out of the fixture body 4 when acid-immersed in the acid immersion tank 1.

[0019] The top end of the spring 13 is fixedly connected to the inner top wall of the cylinder 8. The spring 13 is fixedly connected to the top surface of the protrusion plate 11. A pin 18 is inserted through the top surface of the handle 16, and the bottom end of the pin 18 can extend into the slot 17. A through hole 20 is provided through the top surface of the movable plate 19. The pin 18 corresponds to and cooperates with the through hole 20.

[0020] By adopting the above technical solution, when the circuit board body 12 is supported by the fixture body 4, pulling the handle 16 upward causes the holding rod 14 to move upward. At this time, the convex plate 11 moves upward under the push of the lifting rod 10, thereby compressing the spring 13. Then, rotating the handle 16, through the rotating ring 15, causes the handle 16 to rotate to the movable plate 19. Pulling the movable plate 19 towards the handle 16 causes the movable plate 19 to be inserted into the slot 17 of the handle 16, thereby limiting and fixing the handle 16, and further limiting the lifting rod 10, preventing the holding rod 14 from moving under the elastic force of the spring 13. The lowering mechanism, by inserting the pin 18 into the through hole 20, strengthens the limiting of the handle 16, preventing the movable plate 19 from easily disengaging from the handle 16. Then, the above operation is performed on multiple handles 16 in sequence, causing the holding rod 14 to rise. Next, the operator can free their hands to place the circuit board body 12 into the placement slot. Then, the pin 18 is removed, and the movable plate 19 is pushed to disengage from the slot 17. The handle 16 is then released, and under the action of the spring 13, the lifting rod 10 can fall, thereby allowing the holding rod 14 to press and fix the circuit board body 12 placed in the placement slot.

[0021] A sleeve 21 is fitted on the side wall of the holding rod 14, and a connecting plate 22 is fixedly connected to the side wall of the sleeve 21. The side of the connecting plate 22 away from the sleeve 21 is fixedly connected to the side wall of the fixture body 4.

[0022] By adopting the above technical solution, the sleeve 21 is used to guide the pressing rod 14 to avoid the pressing rod 14 from moving or deviating.

[0023] A protruding ring 5 is fixedly connected to the top surface of the fixture body 4. A rope 6 is fixedly attached to the side wall of the protruding ring 5. A hanging ring 7 is fixedly connected to the end of the rope 6 away from the protruding ring 5.

[0024] By adopting the above technical solution, supports 2 are fixedly connected to both sides of the top surface of the acid leaching tank 1. A crossbar 3 is placed on the top surface of the support 2. The hanging ring 7 can be sleeved on the crossbar 3. The position of the fixture body 4 can be adjusted by moving the hanging ring 7 so that multiple fixture bodies 4 can be evenly distributed in the acid leaching tank 1.

[0025] Working principle: When using this utility model, when the circuit board body 12 needs to be acid-impregnated, the circuit board body 12 can be supported by the fixture body 4. Pulling the handle 16 upward will cause the pressure rod 14 to move upward. At this time, the convex plate 11 will move upward under the push of the lifting rod 10, thereby causing the spring 13 to be in a compressed state.

[0026] Next, rotate the handle 16, and through the rotating ring 15, rotate the handle 16 to the movable plate 19. Pull the movable plate 19 towards the handle 16 so that the movable plate 19 is inserted into the slot 17 of the handle 16, thereby limiting and fixing the handle 16, and thus limiting the lifting rod 10, preventing the holding rod 14 from falling under the elastic force of the spring 13. By inserting the pin 18 into the through hole 20, the limitation of the handle 16 can be strengthened, preventing the movable plate 19 from easily separating from the handle 16.

[0027] Then, the above operations are performed on the handles 16 in sequence to raise the holding rod 14. Then, the operator can free their hands to place the circuit board body 12 into the placement slot. Then, the pin 18 is removed and the movable plate 19 is pushed to disengage from the slot 17. The handle 16 is released and the lifting rod 10 is lowered under the action of the spring 13, so that the holding rod 14 can press and fix the circuit board body 12 placed in the placement slot.

[0028] Then, the hanging ring 7 is placed on the crossbar 3, and the position of the fixture body 4 is adjusted by moving the hanging ring 7 so that multiple fixture bodies 4 can be evenly distributed in the acid immersion tank 1 to dissolve the copper material in the circuit board body 12.

[0029] After the dissolution is complete, pull the rope 6 upwards, and the circuit board body 12 from which the copper material has been dissolved can be easily removed through the fixture body 4 for processing.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A fixture for immersing waste circuit boards, comprising a fixture body (4), characterized in that: The fixture body (4) has placement grooves on both sides. A cylinder (8) is provided on the side wall of the fixture body (4) and on one side of the placement groove. A lifting rod (10) is slidably connected to the bottom surface of the cylinder (8). A protruding plate (11) is fixedly connected to the top of the lifting rod (10). A holding rod (14) is fixedly connected to the bottom end of the lifting rod (10). A spring (13) is provided above the protruding plate (11). A rotating ring (15) is rotatably sleeved on the lower part of the side wall of the lifting rod (10). A handle (16) is fixedly connected to the outer side wall of the rotating ring (15). A movable plate (19) is slidably connected to the side wall of the fixture body (4). A slot (17) is provided through the side wall of the handle (16). The movable plate (19) corresponds to and cooperates with the slot (17).

2. The acid immersion fixture for waste circuit boards as described in claim 1, characterized in that, The side wall of the cylinder (8) is provided with a fixing seat (9), and the side wall of the fixing seat (9) is fixedly connected to the side wall of the fixture body (4).

3. The acid immersion fixture for waste circuit boards as described in claim 1, characterized in that, The protruding plate (11) is located inside the cylinder (8), and the pressing rod (14) is located outside the cylinder (8).

4. The acid immersion fixture for waste circuit boards as described in claim 1, characterized in that, The top end of the spring (13) is fixedly connected to the inner top wall of the cylinder (8), and the spring (13) is fixedly connected to the top surface of the protrusion plate (11).

5. The acid immersion fixture for waste circuit boards as described in claim 1, characterized in that, A pin (18) is inserted through the top surface of the handle (16), and the bottom end of the pin (18) can extend into the slot (17).

6. The acid immersion fixture for waste circuit boards as described in claim 5, characterized in that, The top surface of the movable plate (19) is provided with a through hole (20), and the pin (18) corresponds to and cooperates with the through hole (20).

7. The acid immersion fixture for waste circuit boards as described in claim 1, characterized in that, The side wall of the pressure rod (14) is fitted with a sleeve (21), and a connecting plate (22) is fixedly connected to the side wall of the sleeve (21). The side of the connecting plate (22) away from the sleeve (21) is fixedly connected to the side wall of the fixture body (4).

8. The acid immersion fixture for waste circuit boards as described in claim 1, characterized in that, A protruding ring (5) is fixedly connected to the top surface of the fixture body (4), and a rope (6) is fixedly attached to the side wall of the protruding ring (5). A hanging ring (7) is fixedly connected to the end of the rope (6) away from the protruding ring (5).