PCB (printed circuit board) resin board recycling and crushing device
By designing the coordination between the push plate and the collection box, the quantitative pushing of the circuit board and the secondary crushing of the fragments are achieved, which solves the problems of splashing circuit board fragments and excessively large fragments, and improves the working efficiency and quality of the crushing device.
Patent Information
- Application Number
- CN202422498533.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-16
AI Technical Summary
When the existing PCB board crushing device is working, circuit board fragments fly and some of the crushed fragments are too large, which increases the workload of workers and easily causes the crushing roller to get stuck, affecting subsequent recycling and crushing work.
A PCB resin board recycling and crushing device was designed. Through the cooperation of the reciprocating push plate and the collection box, the quantitative pushing of the circuit board and the secondary crushing of the fragments were achieved, preventing blockage and improving the crushing quality.
It effectively prevents circuit board blockage, ensures crushing effect, reduces manual intervention, and improves the fragment quality and efficiency of the crushing device.
Smart Images
Figure CN223339787U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PCB board recycling, in particular to a PCB resin board recycling and crushing device. Background Art
[0002] With the accelerating development of the information society, the number of electronic and electrical products has grown, and the rate of product replacement has also accelerated, resulting in a large amount of electronic waste. PCBs, also known as printed circuit boards, are a crucial component of electronic products and are increasingly being discarded. The effective separation and reuse of metal elements (such as copper, gold, and silver) and recyclable materials within PCBs not only reduces environmental pollution but also brings significant economic benefits to businesses and individuals.
[0003] Before recycling discarded circuit boards, they are typically crushed using crushing equipment to break them into fragments for subsequent recycling. During the crushing process, workers are typically required to quantitatively load the collected discarded circuit boards into a feed hopper to prevent excessive simultaneous crushing, which could result in oversized fragments and cause the crushing rollers to jam, hindering subsequent recycling and crushing operations.
[0004] Moreover, when the existing crushing device is working, it is necessary to manually collect the fragments screened out by the screen in the device, and to perform secondary crushing on the circuit boards that are not completely crushed, which increases the workload of the workers. Utility Model Content
[0005] The purpose of the utility model is to provide a PCB resin board recycling and crushing device to solve the problems in the prior art of circuit board fragments flying and some of the fragments after crushing being too large.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB resin board recycling and crushing device, comprising a box body, two crushing rollers rotatably connected inside the box body, a feed hopper fixedly connected to the top end of the rear side of the box body, a first fixed plate fixedly connected to the rear side of the box body, a first push plate slidably connected to the top of the first fixed plate, a reciprocating screw rod is provided on the rear side of the box body, a transmission block is threadedly connected to the outer side of the reciprocating screw rod, a collection box is fixedly connected to the front end of the transmission block, the front side of the collection box is fitted with the box body, a second push plate is slidably connected to the inside of the collection box, and the fragments screened out by the screen are transported back to the top of the crushing roller for secondary crushing through the up and down movement of the transmission block under the action of the reciprocating screw rod.
[0007] Preferably, a first transverse plate is hinged to the bottom rear side of the feed hopper, a second transverse plate is slidably connected to the inside of the first transverse plate, one end of the second transverse plate is hinged to the first push plate, and the first and second transverse plates move with the first push plate to prevent the circuit boards inside the feed hopper from being blocked.
[0008] Preferably, a second fixed plate is fixedly connected to the top of the first fixed plate, and a first gear and a second gear are rotatably installed on one side of the second fixed plate, and the first gear and the second gear are meshed and connected, and a push rod is rotatably installed on one side of the second gear, and the push rod is hinged to the first push plate at one end away from the second gear, and a worm gear is fixedly connected to one side of the first gear, and a motor is fixedly connected to the rear side of the feed hopper, and a worm is fixedly connected to the output end of the motor, and the worm gear is meshed and connected to the worm gear. The first push plate makes a reciprocating motion to push a roughly equal number of circuit boards into the interior of the box to prevent the crushing roller from crushing too many circuit boards at one time, saving manpower and eliminating the need for manual material discharge.
[0009] Preferably, both ends of the rear side of the box body are fixedly connected with a third fixed plate, both sides of the collection box are slidably connected with two third fixed plates respectively, both sides of the second push plate are fixedly connected with sliders, and the opposite sides of the two third fixed plates are provided with a first slide groove adapted to the slider. When the collection box moves to the return port, the second push plate moves forward under the action of the slider and the first slide groove, pushing the circuit board fragments to the top of the crushing roller for re-crushing.
[0010] Preferably, two limit blocks are fixedly connected to the bottom of the first fixed plate, a first baffle is slidably connected between the two limit blocks and the box body, a return port adapted to the first baffle is provided on the rear side of the box body, a second baffle is provided between the two third fixed plates, a second slide groove is provided on the opposite side of the bottom of the two third fixed plates, the second baffle is slidably connected to the inside of the two second slide grooves, a spring is provided inside the two second slide grooves, and the two ends of the two springs are respectively fixedly connected to the second baffle and the two second slide grooves.
[0011] Preferably, a screen is provided at the bottom of the two crushing rollers, and the screen is fixedly connected to the inside of the box body. A collecting port is provided at the rear side of the bottom of the box body, and the collecting port is adapted to the second baffle.
[0012] Preferably, a fixed block is fixedly connected to the rear side of the bottom of the box body, both ends of the reciprocating screw rod respectively pass through the first fixed plate and the fixed block and are rotatably connected to the first fixed plate and the fixed block, and the top end of the reciprocating screw rod is fixedly connected to the worm.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. The first push plate of the present application moves back and forth on the top of the first fixed plate. Each time the first push plate moves forward, it can push approximately the same number of circuit boards in the feed hopper into the box body, preventing the crushing roller from crushing too many circuit boards at one time, resulting in poor crushing effect. At the same time, the first horizontal plate and the second horizontal plate follow the movement of the first push plate and tilt back and forth to prevent the discarded circuit boards from being blocked inside the feed hopper.
[0015] 2. The reciprocating screw rod of this application drives the collection box to move up and down. When the collection box moves to the return port, the second push plate pushes the fragments collected inside the collection box from the return port into the box body, and transports the screened fragments from the bottom of the crushing roller to the top of the crushing roller for secondary crushing, thereby improving the fragment crushing quality of the crushing device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the internal structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the overall structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the push plate structure of the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the collection box of the utility model;
[0020] Figure 5 This is a schematic structural diagram of the third fixing plate of the present utility model.
[0021] Numbers in the figure: 1. Box body; 2. Crushing roller; 3. Screen; 4. Feed hopper; 5. First horizontal plate; 6. Second horizontal plate; 7. First push plate; 8. Motor; 9. Worm; 10. First fixed plate; 11. Second fixed plate; 12. Worm gear; 13. First gear; 14. Second gear; 15. Push rod; 16. Transmission block; 17. Collecting box; 18. Second push plate; 19. First chute; 20. First baffle; 21. Limit block; 22. Reciprocating screw; 23. Fixed block; 24. Second baffle; 25. Spring; 26. Third fixed plate. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] Example: Figure 1 , Figure 2 and Figure 4As shown, the utility model provides a technical solution of a PCB resin board recycling and crushing device, including a box body 1, two crushing rollers 2 are rotatably connected inside the box body 1, a feed hopper 4 is fixedly connected to the top end of the rear side of the box body 1, a first fixed plate 10 is fixedly connected to the rear side of the box body 1, and a first push plate 7 is slidably connected to the top of the first fixed plate 10, a reciprocating screw rod 22 is provided on the rear side of the box body 1, a transmission block 16 is threadedly connected to the outer side of the reciprocating screw rod 22, a collection box 17 is fixedly connected to the front end of the transmission block 16, the front side of the collection box 17 is fitted with the box body 1, and a second push plate 18 is slidably connected to the inside of the collection box 17, and the transmission block 16 moves up and down under the action of the reciprocating screw rod 22 to transport the fragments screened out by the screen 3 back to the top of the crushing roller 2 for secondary crushing.
[0024] like Figure 3 The first gear 13 and the second gear 14 are meshed with each other, and a push rod 15 is rotatably installed on one side of the second gear 14. The push rod 15 is hinged with the first push plate 7 on the bottom of the rear side of the feed hopper 4. The first cross plate 5 is hinged on the inside of the first cross plate 5 for sliding connection with the second cross plate 6. One end of the second cross plate 6 is hinged with the first push plate 7. The first cross plate 5 and the second cross plate 6 follow the movement of the first push plate 7 to prevent the circuit boards inside the feed hopper 4 from being blocked.
[0025] like Figure 1 , Figure 4 and Figure 5As shown, both ends of the rear side of the box body 1 are fixedly connected to a third fixed plate 26, and the two sides of the collection box 17 are slidably connected to the two third fixed plates 26 respectively. Both sides of the second push plate 18 are fixedly connected to a slider, and the two opposite sides of the third fixed plates 26 are provided with a first slide groove 19 adapted to the slider. When the collection box 17 moves to the return port, the second push plate 18 moves forward under the action of the slider and the first slide groove 19, pushing the circuit board fragments to the top of the crushing roller 2 for re-crushing. Two limit blocks 21 are fixedly connected to the bottom of the first fixed plate 10, and a first baffle 20 is slidably connected between the two limit blocks 21 and the box body 1. A return port adapted to the first baffle 20 is provided on the rear side of the box body 1, and a third Two baffles 24, a second slide groove is opened on the opposite side of the bottom of the two third fixed plates 26, the second baffle 24 is slidably connected to the inside of the two second slide grooves, and a spring 25 is provided inside the two second slide grooves. The two ends of the two springs 25 are respectively fixedly connected to the second baffle 24 and the two second slide grooves, and the two crushing rollers 2 are provided with a screen 3 at the bottom, and the screen 3 is fixedly connected to the inside of the box body 1. A collecting port is provided on the rear side of the bottom of the box body 1, and the collecting port is adapted to the second baffle 24. A fixed block 23 is fixedly connected to the rear side of the bottom of the box body 1, and the two ends of the reciprocating screw rod 22 respectively pass through the first fixed plate 10 and the fixed block 23 and are rotatably connected to the first fixed plate 10 and the fixed block 23, and the top of the reciprocating screw rod 22 is fixedly connected to the worm 9.
[0026] When the utility model is in use: the collected waste circuit boards are put into the feed hopper 4, and the circuit boards inside the feed hopper 4 are piled up on the top of the first fixed plate 10. At this time, the motor 8 is started, and the motor 8 drives the worm 9 to rotate, and the worm 9 drives the worm gear 12 to rotate, and the worm gear 12 drives the first gear 13 to rotate, and the first gear 13 drives the second gear 14 to rotate. The rotation of the second gear 14 causes the first push plate 7 to make a reciprocating motion on the top of the first fixed plate 10 through the push rod 15. Each time the first push plate 7 moves forward, it can push the circuit boards of the feed hopper 4 with a roughly equal number into the box body 1, so as to prevent the crushing roller 2 from crushing too many circuit boards at one time, resulting in a poor crushing effect. When the first push plate 7 moves, the second transverse plate 6 follows the movement. The first transverse plate 5 is hinged to the feed hopper 4, and the second transverse plate 6 is hinged to the feed hopper 4. The plate 6 is slidably connected to the first transverse plate 5. When the second transverse plate 6 moves, it expands and contracts inside the first transverse plate 5, driving the first transverse plate 5 to move and tilt. The second transverse plate 6 and the first transverse plate 5 can prevent the circuit board from falling into the rear side of the first push plate 7 when the first push plate 7 moves. At the same time, the first transverse plate 5 and the second transverse plate 6 tilt back and forth to prevent the waste circuit boards from being blocked inside the feed hopper 4. The driving mode of the two crushing rollers 2 is the existing mature technology and will not be described in detail here. The two crushing rollers 2 crush the circuit board, and the crushed fragments are screened by the screen 3 and discharged from the bottom of the box 1. The oversized fragments slide along the inclined direction of the screen 3 to the collection port on the rear side of the screen 3 and are blocked by the second baffle 24. The flying fragments are blocked by the box 1 itself to prevent them from flying around during operation.
[0027] The worm 9 rotates, driving the reciprocating screw 22 to rotate. As the reciprocating screw 22 rotates, the transmission block 16, which is threadedly connected to the reciprocating screw 22, moves up and down, causing the transmission block 16 to move the collection box 17 up and down. When the collection box 17 moves downward and contacts the second baffle 24, the collection box 17 drives the second baffle 24 downward to open the collection opening. The second baffle 24 compresses the spring 25 downward, and the collection box 17 fits into the collection opening on the rear side of the box body 1. At this time, the debris blocked by the second baffle 24 falls from the collection opening into the collection box 17. Then, the collection box 17 moves upward, and the second baffle 24 rebounds to the top of the second chute under the action of the spring 25, thereby closing the collection opening and preventing the debris from falling out of the box body 1. When the collection box 17 moves upward and contacts the first baffle 20, the first baffle 20 rises with the collection box 17, opening the return port. The sliders provided on both sides of the second push plate 18 move inside the first chute 19. The top of the first chute 19 is set at an upward angle. The sliders rise inside the first chute 19, causing the second push plate 18 to move forward, pushing the fragments collected in the collection box 17 from the return port into the box body 1. Through the up and down movement of the collection box 17, the screened fragments are transported to the top of the crushing roller 2 for secondary crushing, thereby improving the quality of the fragment crushing. The top of the first baffle 20 and the bottom of the limit block 21 are both provided with protrusions. When the collection box 17 moves downward, the first baffle 20 falls under the action of gravity. The limit block 21 clamps the first baffle 20 at the return port when the first baffle 20 falls, blocking the return port and preventing the circuit board fragments from splashing out. In this cycle, the fragments screened by the screen 3 are subjected to secondary crushing, improving the quality of the circuit board crushing and facilitating the subsequent workers' handling of the circuit board fragments.
[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. A PCB resin board recycling and crushing device, comprising a box (1), wherein two crushing rollers (2) are rotatably connected inside the box (1), characterized in that: The top end of the rear side of the box body (1) is fixedly connected to a feed hopper (4), the rear side of the box body (1) is fixedly connected to a first fixed plate (10), the top of the first fixed plate (10) is slidably connected to a first push plate (7), the rear side of the box body (1) is provided with a reciprocating screw rod (22), the outer side of the reciprocating screw rod (22) is threadedly connected to a transmission block (16), the front end of the transmission block (16) is fixedly connected to a collection box (17), the front side of the collection box (17) is in contact with the box body (1), and the inside of the collection box (17) is slidably connected to a second push plate (18).
2. The PCB resin board recycling and crushing device according to claim 1, characterized in that: The rear bottom of the feed hopper (4) is hinged with a first transverse plate (5), the interior of the first transverse plate (5) is slidably connected with a second transverse plate (6), and one end of the second transverse plate (6) is hinged with a first push plate (7).
3. The PCB resin board recycling and crushing device according to claim 1, characterized in that: The top of the first fixed plate (10) is fixedly connected to the second fixed plate (11), and the first gear (13) and the second gear (14) are rotatably installed on one side of the second fixed plate (11), and the first gear (13) and the second gear (14) are meshingly connected. A push rod (15) is rotatably installed on one side of the second gear (14), and the push rod (15) is hinged to the first push plate (7) at one end away from the second gear (14). A worm gear (12) is fixedly connected to one side of the first gear (13), and a motor (8) is fixedly connected to the rear side of the feed hopper (4). A worm (9) is fixedly connected to the output end of the motor (8), and the worm gear (12) is meshingly connected to the worm (9).
4. The PCB resin board recycling and crushing device according to claim 1, characterized in that: The two ends of the rear side of the box body (1) are fixedly connected to the third fixed plates (26), the two sides of the collection box (17) are slidably connected to the two third fixed plates (26), the two sides of the second push plate (18) are fixedly connected to the sliders, and the opposite sides of the two third fixed plates (26) are provided with a first sliding groove (19) adapted to the slider.
5. The PCB resin board recycling and crushing device according to claim 4, characterized in that: Two limit blocks (21) are fixedly connected to the bottom of the first fixed plate (10), a first baffle (20) is slidably connected between the two limit blocks (21) and the box body (1), a return port adapted to the first baffle (20) is provided on the rear side of the box body (1), a second baffle (24) is provided between the two third fixed plates (26), a second slide groove is provided on the opposite side of the bottom of the two third fixed plates (26), the second baffle (24) is slidably connected to the inside of the two second slide grooves, a spring (25) is provided inside the two second slide grooves, and the two ends of the two springs (25) are fixedly connected to the second baffle (24) and the two second slide grooves respectively.
6. The PCB resin board recycling and crushing device according to claim 5, characterized in that: A screen (3) is provided at the bottom of the two crushing rollers (2), and the screen (3) is fixedly connected to the inside of the box (1). A collecting port is provided at the rear side of the bottom of the box (1), and the collecting port is adapted to the second baffle (24).
7. The PCB resin board recycling and crushing device according to claim 6, characterized in that: A fixed block (23) is fixedly connected to the rear side of the bottom of the box body (1); both ends of the reciprocating screw rod (22) respectively pass through the first fixed plate (10) and the fixed block (23) and are rotatably connected to the first fixed plate (10) and the fixed block (23); and the top end of the reciprocating screw rod (22) is fixedly connected to the worm (9).