Device and method for recovering precious metals from waste circuit boards

Abstract

The present invention relates to the technical field of waste circuit board recycling and processing, and discloses a device and method for recycling precious metals from waste circuit boards, comprising an outer base shell, wherein a built-in cabin is rotatably connected inside the outer base shell, and a second fracture is opened on the inner wall of the outer base shell; a first support block is fixedly installed at one end of the bottom of the outer base shell, a support shaft is rotatably connected to the bottom of the first support block, and second support blocks are rotatably connected to both ends of the support shaft, and a material guide trough is fixedly installed on the top of the second support block; a mounting frame is provided on one side of the outer base shell, and a screw rod is rotatably connected to one side of the mounting frame. The present invention sets the first fracture and the second fracture so that the shear force generated by the staggered cutting off the waste circuit board, and drives the push block to move when the guide plate rotates, so as to clean the residual materials in the second fracture, and realizes the sorting of the circuit board by setting the material guide trough and the screening trough, and relies on the collection trough to realize the collection, so as to facilitate secondary crushing.

Description

Technical Field

[0001] The invention belongs to the technical field of recycling and processing of waste circuit boards, and in particular, relates to a device and method for recycling precious metals from waste circuit boards. Background Art

[0002] Waste circuit boards need to be pre-processed when they are recycled, and they are broken into smaller pieces by a crusher to facilitate subsequent recycling operations.

[0003] A Chinese patent with authorization announcement number CN217289772U discloses a multi-stage crushing device for recycling waste circuit boards. The multi-stage crushing device for recycling waste circuit boards improves the degree of crushing of waste circuit boards by providing a primary crushing mechanism and a secondary crushing mechanism.

[0004] However, this technical solution still has at least the following defects: the primary crushing mechanism and the secondary crushing mechanism in this solution can only increase the degree of crushing, and there is still a possibility that the circuit board does not meet the standard after passing through the secondary crushing mechanism, and the device does not have a screening and collection device for the circuit boards that do not meet the standard, which affects the subsequent process steps. At the same time, the crushing mechanism does not have a cleaning mechanism, and the crushing mechanism may adhere to resin and other materials after long-term use. In view of this, the present invention is specially proposed. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a device and method for recovering precious metals from waste circuit boards. By setting a first fracture and a second fracture, the shear force generated by the staggered cutting off the waste circuit boards, and the push block is driven to move when the guide plate rotates, so as to clean up the residual materials in the second fracture, and the circuit boards are sorted by setting a material guide trough and a screening trough, and the collection is achieved by relying on a collecting trough, which is convenient for secondary crushing.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A device for recovering precious metals from waste circuit boards, comprising an outer base shell, a built-in cabin rotatably connected inside the outer base shell, a second break opening on the inner wall of the outer base shell, the bottom of the second break opening extending to the bottom of the outer base shell, a push block slidably connected to the top of the second break opening, and a first break opening on the side of the built-in cabin;

[0008] A first support block is fixedly installed at one end of the bottom of the outer base shell, a support shaft is rotatably connected to the bottom of the first support block, both ends of the support shaft are rotatably connected to second support blocks, a material guide trough is fixedly installed on the top of the second support block, the two material guide troughs are respectively adapted to the two second fractures, and a screening trough is installed on one side of the two material guide troughs;

[0009] A mounting frame is provided on one side of the outer base shell, one side of the mounting frame is rotatably connected to a screw rod, a second drive motor is fixedly installed on the bottom of the mounting frame, the shaft end of the second drive motor is connected to the end of the screw rod, a mounting block is threadedly connected to the screw rod, one side of the mounting block is rotatably connected to a support column, a cross bracket is fixedly installed on one side of the top of the support column, the other end of the cross bracket is rotatably connected to a collecting trough, and the middle of the collecting trough is aligned with the support column.

[0010] As a preferred embodiment of the present invention, a guide plate is fixedly installed on the outside of the top of the built-in cabin, an annular groove is opened on the top of the outer base shell located on the outside of the built-in cabin, and the guide plate is slidably connected in the annular groove, and cylindrical grooves are opened at both ends of the annular groove of the outer base shell, and the position of the cylindrical groove corresponds to the position of the push block, a telescopic rod is fixedly installed on the bottom of the cylindrical groove, and a pressure rod is fixedly installed on the top of the telescopic rod, and a first spring is movably sleeved on the telescopic rod, and the first spring is always in a compressed state, and a slider is fixedly installed on one end of the pressure rod, and the slider is slidably connected to the inside of the outer base shell, and one end of the slider is fixedly connected to the push block.

[0011] As a preferred embodiment of the present invention, a first drive motor is fixedly mounted on one side of the outer base shell, a first gear is fixedly mounted on the shaft end of the first drive motor, a second gear is meshingly connected to one side of the first gear, and the bottom of the second gear is fixedly mounted on the top of the built-in cabin.

[0012] As a preferred embodiment of the present invention, the outer base shell is fixedly installed with a limiting sleeve at both sides of the first driving motor, a plug rod is movably inserted into the limiting sleeve, a pressure column is fixedly installed on the top of the plug rod, and two guide blocks symmetrical about the center of the first gear are fixedly installed at the bottom of the two plug rods, the guide blocks are aligned with the pressure column, a connecting rod is fixedly installed at the bottom of the two plug rods, a second spring is movably sleeved on the plug rod, the two ends of the second spring are respectively fixedly installed on the bottom of the limiting sleeve and the top of the connecting rod, the second spring is always in a stretched state, and the two ends of the connecting rod are sleeved with a third support block, a sliding groove is opened on the third support block, the two ends of the connecting rod are movably connected in the sliding groove, and one end of the third support block is fixedly installed at the bottom of one end of the material guide trough.

[0013] As a preferred embodiment of the present invention, a fixed block is fixedly installed on the bottom of the outer base shell, rollers are installed on both ends of the top of the fixed block, a guide rail is fixedly installed on the bottom of the built-in cabin, the guide rail is adapted to the roller, a cone block is fixedly installed on the top of the fixed block, the top of the cone block movably passes through the built-in cabin and extends to the interior, scrapers are fixedly installed on both sides of the cone block inside the built-in cabin, and the path of the scraper is arc-shaped.

[0014] As a preferred embodiment of the present invention, the material guide trough is arranged at an angle, and the bottom end of the material guide trough is close to one end of the collecting trough, the bottom end of the material guide trough is rotatably connected to a baffle, a protrusion is fixedly installed on one side of the baffle, and the cross-sectional shape of the protrusion is triangular, a magnet is embedded and connected to one side of the bottom end of the material guide trough, the baffle is made of magnetic material, a protrusion is fixedly installed on one side of the collecting trough, and one end of the protrusion is adapted to the baffle and the protrusion.

[0015] As a preferred embodiment of the present invention, the collecting trough is rotatably connected to a door panel near one end of the cross bracket, a torsion spring is installed at the connection between the door panel and the collecting trough, one end of the door panel is movably hinged to two pull rods, the two pull rods are hinged to each other, the other end of the pull rod is hinged to a support frame, and the end of the support frame is fixedly installed on one side of the cross bracket.

[0016] As a preferred embodiment of the present invention, a rectangular groove is provided on the top of the support column, an electric push rod is fixedly installed on the bottom of the support column located in the rectangular groove, an L-shaped frame is fixedly installed on the top of the electric push rod, one end of the L-shaped frame is rotatably connected with an inner plug shaft, an outer sleeve is movably sleeved on the outer side of the inner plug shaft, the end of the outer sleeve is rotatably connected with a positioning shaft, the bottom of the positioning shaft is rotatably connected with a positioning block, one side of the positioning block is fixedly installed on one side of the mounting block, a notch is provided on one side of the inner plug shaft, a clamping block is fixedly installed on the bottom of the inner plug shaft, the clamping block passes through the side wall of the outer sleeve and extends to the outside, and a stopper is fixedly installed on the side of the mounting block, and the position of the stopper corresponds to the clamping block.

[0017] As a preferred embodiment of the present invention, fixing frames are fixedly mounted on both sides of the outer base shell and the mounting frame, a conveyor belt is installed between the two fixing frames, and the conveyor belt is located at the bottom of the screening trough.

[0018] The present invention also discloses a method for recovering precious metals from waste circuit boards. The steps of the method for recovering precious metals from waste circuit boards are as follows:

[0019] S1. When in use, put the waste circuit board into the built-in compartment, start the first driving motor, the first driving motor drives the first gear to rotate, the first gear drives the second gear to rotate by meshing, the second gear drives the built-in compartment to rotate, when the built-in compartment rotates, the waste circuit board loaded inside is driven to rotate together, and slides toward the side wall of the built-in compartment under the guidance of the scraper, and slides toward the first break, when the first break is turned to be aligned with the second break, the shear force formed by the first break and the second break cuts the waste circuit board, and the cut waste circuit board falls on the material guide trough;

[0020] S2, the built-in cabin rotates and drives the guide plate to rotate at the same time. When the first break is offset from the second break, the guide plate presses the pressure rod and makes it move downward. The pressure rod drives the push block to move downward through the slider. The push block slides in the second break and removes the material adhered to the second break. When the first break is aligned with the second break, the guide plate and the pressure rod are offset. The elastic force of the first spring drives the pressure rod to rise, so that the push block rises and resets.

[0021] S3, when the first driving motor drives the first gear to rotate, the first gear drives the guide block to rotate, and when the guide block is against the pressure column, the pressure column drives the connecting rod to move downward through the insertion rod, and when the pressure column and the guide block are staggered, the tension of the second spring pulls the connecting rod to reset, and the connecting rod vibrates up and down in this way. The up and down vibration of the connecting rod drives the guide trough to vibrate through the third support block and the slide groove, and the waste circuit boards falling on the guide trough slide to the bottom under the action of vibration, and when passing through the screening trough, the waste circuit boards of qualified size enter the screening trough, and enter the conveyor belt through the screening trough, so as to be transported to the subsequent process, while the waste circuit boards of unqualified size slide into the collection trough;

[0022] S4. When the collection tank is full of waste circuit boards, the second drive motor is started, the second drive motor drives the screw rod to rotate, and the screw rod drives the mounting block and its connecting assembly to move upward, so that the collection tank moves upward. While the collection tank moves, the convex plate presses against the baffle plate, so that the baffle plate can be combined and kept motionless under the action of the magnet, and the unqualified waste circuit boards are blocked by the baffle plate;

[0023] S5. When the mounting block moves to the top, the second drive motor is turned off, and the electric push rod is started. The electric push rod drives the L-shaped frame to rise. While the L-shaped frame rises, it rotates through the pulling action of the inner plug shaft, the clamping block and the outer sleeve, so that the support column rotates. The support column drives the collection tank to rotate. While the L-shaped frame rises, it drives the collection tank to tilt upward. While one end of the collection tank tilts up, one end of the door panel sinks. At this time, the two pull rods are in a folded state. When the support column drives the collection tank to rotate ninety degrees, the block resists the clamping block, so that it is staggered with the outer sleeve. At this time, the inner plug shaft and the outer sleeve can slide against each other. At the same time, the two pull rods are in a straight state. The electric push rod continues to drive the collection tank to tilt. The collection tank pulls the door panel open through the two pull rods. At this time, the material in the collection tank falls into the built-in cabin and is crushed for the second time.

[0024] S6. When the materials in the collecting trough are dumped, the electric push rod is retracted to reset the collecting trough, and the second drive motor is started in reverse to lower the mounting block and drive the collecting trough to lower. When the collecting trough drops to the bottom, the convex plate on the side presses against the convex block to open the baffle. At this time, the waste circuit boards on the guide trough fall into the collecting trough through the baffle.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention sets the first break and the second break so that the shear force generated by the staggered cuts off the waste circuit board, and drives the push block to move when the guide plate rotates, so as to clean the residual materials in the second break, and sorts the circuit boards by setting the material guide trough and the screening trough, and collects them by the collection trough, which is convenient for secondary crushing;

[0027] The present invention starts the second driving motor when the collecting tank is full of waste circuit boards, drives the collecting tank to rise through the lead screw, and realizes the dumping operation of the collecting tank through the electric push rod, the inner plug shaft and the outer sleeve and other components, so that the waste circuit boards are poured into the built-in cabin for secondary crushing. Since fewer unqualified circuit boards are screened out, the use of this device can avoid the low energy efficiency caused by the continuous operation of the conveyor belt type conveying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of a device for recovering precious metals from waste circuit boards according to the present invention;

[0029] Figure 2 This is a schematic diagram of the side structure of a device for recovering precious metals from waste circuit boards according to the present invention;

[0030] Figure 3 It is a structural schematic diagram of the guide plate of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the internal cabin and the outer base shell being separated from each other;

[0032] Figure 5 It is a schematic diagram of the structure of the scraper of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the pressure rod of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure at the first fracture and the second fracture of the present invention;

[0035] Figure 8 This is a structural schematic diagram of the first driving motor of the present invention;

[0036] Fig. 9 This is a structural schematic diagram of the material guide trough of the present invention;

[0037] Fig.10 This is a schematic diagram of the structure of the baffle of the present invention;

[0038] Fig.11 This is a schematic diagram of the positional relationship between the baffle and the convex plate of the present invention;

[0039] Fig.12 It is a structural schematic diagram of the pull rod of the present invention;

[0040] Fig.13 This is a structural schematic diagram of the support column of the present invention;

[0041] Fig.14 It is a schematic diagram of the structure of the inner insert shaft and the outer sleeve of the present invention.

[0042] In the figure:

[0043] 100, outer base shell; 101, inner cabin; 102, first fracture; 103, second fracture; 104, push block; 105, slider; 106, pressure rod; 107, telescopic rod; 108, first spring; 109, guide plate; 110, cylindrical groove; 111, annular groove;

[0044] 200, fixed block; 201, roller; 202, guide rail; 203, cone block; 204, scraper;

[0045] 300, first driving motor; 301, first gear; 302, second gear; 303, limiting sleeve; 304, insert rod; 305, pressure column; 306, guide block; 307, connecting rod; 308, second spring;

[0046] 400, first support block; 401, support shaft; 402, second support block; 403, material guide trough; 404, material screening trough; 405, third support block; 406, slide trough;

[0047] 500, baffle; 501, bump; 502, magnet;

[0048] 600, mounting frame; 601, screw rod; 602, second drive motor; 603, mounting block; 604, support column; 605, cross bracket; 606, collecting tank; 607, door panel; 608, torsion spring; 609, pull rod; 610, supporting frame; 611, convex plate;

[0049] 700, electric push rod; 701, L-shaped frame; 702, internal shaft; 703, outer sleeve; 704, notch; 705, clamping block; 706, positioning shaft; 707, positioning block; 708, stopper;

[0050] 800. Fixed frame; 801. Conveyor belt. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0052] Example 1

[0053] like Figures 1 to 14As shown, a device for recovering precious metals from waste circuit boards comprises an outer base shell 100, an inner chamber 101 is rotatably connected inside the outer base shell 100, a second break 103 is opened on the inner wall of the outer base shell 100, the bottom of the second break 103 extends to the bottom of the outer base shell 100, a push block 104 is slidably connected to the top of the second break 103, and a first break 102 is opened on the side of the inner chamber 101;

[0054] A first support block 400 is fixedly installed at one end of the bottom of the outer base shell 100, a support shaft 401 is rotatably connected to the bottom of the first support block 400, and both ends of the support shaft 401 are rotatably connected to the second support block 402, and a material guide trough 403 is fixedly installed on the top of the second support block 402, and the two material guide troughs 403 are respectively adapted to the two second fractures 103, and a screening trough 404 is installed on one side of the two material guide troughs 403;

[0055] A mounting frame 600 is provided on one side of the outer base shell 100, and a screw rod 601 is rotatably connected to one side of the mounting frame 600, and a second drive motor 602 is fixedly installed on the bottom of the mounting frame 600, and the shaft end of the second drive motor 602 is connected to the end of the screw rod 601, and a mounting block 603 is threadedly connected to the screw rod 601, and one side of the mounting block 603 is rotatably connected to a support column 604, and a cross bracket 605 is fixedly installed on one side of the top of the support column 604, and the other end of the cross bracket 605 is rotatably connected to a collection tank 606, and the middle part of the collection tank 606 is aligned with the support column 604.

[0056] like Figure 3-Figure 7As shown, in a specific embodiment, a guide plate 109 is fixedly installed on the outer side of the top of the built-in cabin 101, and an annular groove 111 is opened on the top of the outer base shell 100 located on the outside of the built-in cabin 101, and the guide plate 109 is slidably connected in the annular groove 111. The outer base shell 100 is provided with cylindrical grooves 110 at both ends of the annular groove 111, and the position of the cylindrical groove 110 corresponds to the position of the push block 104. A telescopic rod 107 is fixedly installed on the bottom of the cylindrical groove 110, and a pressure rod 106 is fixedly installed on the top of the telescopic rod 107. A first spring 108 is movably sleeved on the telescopic rod 107, and the first spring 108 is always in a compressed state. A slider 105 is fixedly installed on one end of the pressure rod 106, and the slider 105 is slidably connected inside the outer base shell 100, and one end of the slider 105 is fixedly connected to the push block 104. In this configuration, the built-in cabin 101 rotates and drives the guide plate 109 to rotate at the same time. When the first break 102 and the second break 103 are offset, the guide plate 109 presses the pressure rod 106 and moves it downward. The pressure rod 106 drives the push block 104 to move downward through the slider 105. The push block 104 slides in the second break 103 and removes the material adhered to the second break 103. When the first break 102 and the second break 103 are aligned, the guide plate 109 and the pressure rod 106 are offset, and the elastic force of the first spring 108 drives the pressure rod 106 to rise, thereby causing the push block 104 to rise and reset.

[0057] like Figure 1 , Figure 2 , Figure 3 , Figure 8 As shown, further, a first drive motor 300 is fixedly mounted on one side of the outer base shell 100, a first gear 301 is fixedly mounted on the shaft end of the first drive motor 300, a second gear 302 is meshedly connected to one side of the first gear 301, and the bottom of the second gear 302 is fixedly mounted on the top of the built-in cabin 101. In this configuration, the first drive motor 300 is started, the first drive motor 300 drives the first gear 301 to rotate, the first gear 301 drives the second gear 302 to rotate through meshing, and the second gear 302 drives the built-in cabin 101 to rotate.

[0058] Example 2

[0059] like Figure 8 , Fig. 9As shown, in a specific embodiment, the outer base shell 100 is fixedly installed with a limiting sleeve 303 at both sides of the first driving motor 300, a plug rod 304 is movably inserted on the limiting sleeve 303, a pressure column 305 is fixedly installed on the top of the plug rod 304, two guide blocks 306 symmetrical about the center of the first gear 301 are fixedly installed at the bottom of the first gear 301, the guide blocks 306 are aligned with the pressure column 305, a connecting rod 307 is fixedly installed at the bottom of the two plug rods 304, a second spring 308 is movably sleeved on the plug rod 304, the two ends of the second spring 308 are respectively fixedly installed on the bottom of the limiting sleeve 303 and the top of the connecting rod 307, the second spring 308 is always in a stretched state, the two ends of the connecting rod 307 are sleeved with a third support block 405, the third support block 405 is provided with a slide groove 406, the two ends of the connecting rod 307 are movably connected in the slide groove 406, and one end of the third support block 405 is fixedly installed at the bottom of one end of the guide groove 403. When the guide block 306 is pressed against the pressure column 305, the pressure column 305 drives the connecting rod 307 to move downward through the insertion rod 304. When the pressure column 305 and the guide block 306 are offset, the tension of the second spring 308 pulls the connecting rod 307 to reset, and the connecting rod 307 is reciprocated up and down to achieve the up and down vibration of the connecting rod 307. The up and down vibration of the connecting rod 307 drives the guide trough 403 to vibrate through the third support block 405 and the slide trough 406. The waste circuit boards that fall on the guide trough 403 slide to the bottom under the action of vibration, and when passing through the screening trough 404, the waste circuit boards of qualified size enter the screening trough 404.

[0060] like Figure 5 , Fig. 9 As shown, further, a fixing block 200 is fixedly installed at the bottom of the outer base shell 100, rollers 201 are installed at both ends of the top of the fixing block 200, a guide rail 202 is fixedly installed at the bottom of the built-in cabin 101, the guide rail 202 is adapted to the roller 201, a cone block 203 is fixedly installed at the top of the fixing block 200, the top of the cone block 203 movably passes through the built-in cabin 101 and extends to the inside, and scrapers 204 are fixedly installed on both sides of the cone block 203 inside the built-in cabin 101, and the path of the scraper 204 is arc-shaped. In this setting, the built-in cabin 101 is supported by the guide rail 202 and the roller 201, and when the built-in cabin 101 rotates, the waste circuit boards filled inside are driven to rotate together, and slide toward the side wall of the built-in cabin 101 under the guidance of the scraper 204.

[0061] like Figure 8-Figure 11As shown, further, the material guide trough 403 is arranged at an angle, and the end of the material guide trough 403 close to the collecting trough 606 is the bottom end, the bottom end of the material guide trough 403 is rotatably connected with a baffle 500, a protrusion 501 is fixedly installed on one side of the baffle 500, and the cross-sectional shape of the protrusion 501 is triangular, a magnet 502 is embedded and connected to one side of the bottom end of the material guide trough 403, the baffle 500 is made of magnetic material, a protrusion 611 is fixedly installed on one side of the collecting trough 606, and one end of the protrusion 611 is adapted to the baffle 500 and the protrusion 501. In this arrangement, the collecting trough 606 moves while the convex plate 611 presses against the baffle 500, so that the baffle 500 can be combined and kept stationary under the action of the magnet 502. At this time, the unqualified waste circuit boards are blocked by the baffle 500. When the collecting trough 606 descends to the bottom, the convex plate 611 on the side presses against the protrusion 501 to open the baffle 500. At this time, the waste circuit boards on the guide trough 403 fall into the collecting trough 606 through the baffle 500.

[0062] Example 3

[0063] like Fig.10 , Fig.12 , Fig.14 As shown, in a specific embodiment, the collecting tank 606 is rotatably connected to one end of the horizontal bracket 605 with a door panel 607, and a torsion spring 608 is installed at the connection between the door panel 607 and the collecting tank 606. One end of the door panel 607 is movably hinged with two tie rods 609, and the two tie rods 609 are hinged to each other. The other end of the tie rod 609 is hinged to a support frame 610, and the end of the support frame 610 is fixedly installed on one side of the horizontal bracket 605. In this setting, when the support column 604 drives the collecting tank 606 to rotate 90 degrees, the two tie rods 609 are in a straight state, and the electric push rod 700 continues to drive the collecting tank 606 to tilt up, and the collecting tank 606 pulls the door panel 607 to open through the two tie rods 609. At this time, the materials in the collecting tank 606 fall into the built-in cabin 101 and are crushed for the second time.

[0064] like Fig.13 , Fig.14As shown, further, a rectangular groove is provided on the top of the support column 604, and an electric push rod 700 is fixedly installed at the bottom of the rectangular groove of the support column 604, and an L-shaped frame 701 is fixedly installed on the top of the electric push rod 700, one end of the L-shaped frame 701 is rotatably connected to an inserted shaft 702, and an outer sleeve 703 is movably sleeved on the outer side of the inserted shaft 702, and the end of the outer sleeve 703 is rotatably connected to a positioning shaft 706, and the bottom of the positioning shaft 706 is rotatably connected to a positioning block 707, one side of the positioning block 707 is fixedly installed on one side of the mounting block 603, a slot 704 is provided on one side of the inserted shaft 702, and a clamping block 705 is fixedly installed at the bottom of the inserted shaft 702, the clamping block 705 penetrates the side wall of the outer sleeve 703 and extends to the outside, and a stopper 708 is fixedly installed on the side of the mounting block 603, and the position of the stopper 708 corresponds to that of the clamping block 705. In this configuration, when the mounting block 603 moves to the top, the second drive motor 602 is shut down, and the electric push rod 700 is started. The electric push rod 700 drives the L-shaped frame 701 to rise. As the L-shaped frame 701 rises, it rotates through the pulling action of the inner plug shaft 702, the block 705 and the outer sleeve 703, thereby causing the support column 604 to rotate. When the support column 604 drives the collecting trough 606 to rotate ninety degrees, the block 708 resists the block 705, thereby staggering it from the outer sleeve 703. At this time, the inner plug shaft 702 and the outer sleeve 703 can slide against each other.

[0065] like Figure 1 , Figure 2 As shown, further, a fixing frame 800 is fixedly installed on both sides of the outer base shell 100 and the mounting frame 600, and a conveyor belt 801 is installed between the two fixing frames 800, and the conveyor belt 801 is located at the bottom of the screening trough 404. In this setting, the fixing frame 800 plays a supporting role for the entire device, and the conveyor belt 801 is used to convey the crushed waste circuit boards.

[0066] The implementation principle of the device for recovering precious metals from waste circuit boards of this embodiment is as follows: when in use, the waste circuit boards are placed into the built-in compartment 101, and the first driving motor 300 is started. The first driving motor 300 drives the first gear 301 to rotate, and the first gear 301 drives the second gear 302 to rotate by meshing, and the second gear 302 drives the built-in compartment 101 to rotate. When the built-in compartment 101 rotates, the waste circuit boards loaded inside are driven to rotate together, and slide toward the side wall of the built-in compartment 101 under the guidance of the scraper 204, and slide toward the first break 102. When the first break 102 rotates to align with the second break 103, the shear force formed by the first break 102 and the second break 103 cuts off the waste circuit boards, and the cut waste circuit boards fall onto the guide trough 403.

[0067] The internal chamber 101 rotates while driving the guide plate 109 to rotate. When the first break 102 and the second break 103 are offset, the guide plate 109 presses the pressure rod 106 and moves it downward. The pressure rod 106 drives the push block 104 to move downward through the slider 105. The push block 104 slides in the second break 103 and removes the materials adhered in the second break 103. When the first break 102 and the second break 103 are aligned, the guide plate 109 and the pressure rod 106 are offset, and the elastic force of the first spring 108 drives the pressure rod 106 to rise, so that the push block 104 rises and resets.

[0068] When the first driving motor 300 drives the first gear 301 to rotate, the first gear 301 drives the guide block 306 to rotate. When the guide block 306 abuts against the pressure column 305, the pressure column 305 drives the connecting rod 307 to move downward through the insertion rod 304. When the pressure column 305 and the guide block 306 are staggered, the tension of the second spring 308 pulls the connecting rod 307 to reset, and the connecting rod 307 vibrates up and down in this way. The connecting rod 307 vibrates up and down through the third support block 405 and the slide 406 to drive the guide trough 403 to vibrate. The waste circuit boards falling on the guide trough 403 slide to the bottom under the action of vibration, and when passing through the screening trough 404, the waste circuit boards of qualified size enter the screening trough 404, and enter the conveyor belt 801 through the screening trough 404, so as to be transported to the subsequent process, while the waste circuit boards of unqualified size slide into the collecting trough 606.

[0069] When the collection tank 606 is full of waste circuit boards, the second drive motor 602 is started, and the second drive motor 602 drives the screw rod 601 to rotate, and the screw rod 601 drives the mounting block 603 and its connecting components to move upward, so that the collection tank 606 moves upward. While the collection tank 606 moves, the convex plate 611 abuts against the baffle 500, so that the baffle 500 can be combined and kept motionless under the action of the magnet 502, and the unqualified waste circuit boards are blocked by the baffle 500.

[0070] When the mounting block 603 moves to the top, the second drive motor 602 is turned off, and the electric push rod 700 is started. The electric push rod 700 drives the L-shaped frame 701 to rise. While the L-shaped frame 701 rises, it rotates through the pulling action of the inner plug shaft 702, the block 705 and the outer sleeve 703, so that the support column 604 rotates, and the support column 604 drives the collection tank 606 to rotate. While the L-shaped frame 701 rises, it drives the collection tank 606 to tilt upward. While one end of the collection tank 606 tilts up, one end of the door panel 607 sinks. At this time, The two pull rods 609 are in a folded state. When the support column 604 drives the collection tank 606 to rotate 90 degrees, the stopper 708 abuts against the block 705, so that it is staggered with the outer sleeve 703. At this time, the inner shaft 702 and the outer sleeve 703 can slide with each other. At the same time, the two pull rods 609 are in a straight state. The electric push rod 700 continues to drive the collection tank 606 to tilt up. The collection tank 606 opens by pulling the door panel 607 through the two pull rods 609. At this time, the materials in the collection tank 606 fall into the built-in cabin 101 and are crushed for the second time.

[0071] When the materials in the collecting trough 606 are completely dumped, the electric push rod 700 is retracted to reset the collecting trough 606, and the second drive motor 602 is started in reverse to lower the mounting block 603 and drive the collecting trough 606 to lower. When the collecting trough 606 drops to the bottom, the convex plate 611 on the side abuts against the convex block 501 to open the baffle 500. At this time, the waste circuit boards on the guide trough 403 fall into the collecting trough 606 through the baffle 500.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for recovering precious metals from waste circuit boards, comprising an outer base shell (100), characterized in that: The outer base shell (100) is rotatably connected to the inner part of the built-in cabin (101); the inner wall of the outer base shell (100) is provided with a second break (103); the bottom of the second break (103) extends to the bottom of the outer base shell (100); the top of the second break (103) is slidably connected to a push block (104); and the side of the built-in cabin (101) is provided with a first break (102); A first support block (400) is fixedly mounted on one end of the bottom of the outer base shell (100); a support shaft (401) is rotatably connected to the bottom of the first support block (400); both ends of the support shaft (401) are rotatably connected to second support blocks (402); a material guide trough (403) is fixedly mounted on the top of the second support block (402); the two material guide troughs (403) are respectively matched with the two second fractures (103); and a screening trough (404) is mounted on one side of the two material guide troughs (403); A mounting frame (600) is provided on one side of the outer base shell (100), a screw rod (601) is rotatably connected to one side of the mounting frame (600), a second drive motor (602) is fixedly mounted on the bottom of the mounting frame (600), the shaft end of the second drive motor (602) is connected to the end of the screw rod (601), a mounting block (603) is threadedly connected to the screw rod (601), one side of the mounting block (603) is rotatably connected to a support column (604), a cross bracket (605) is fixedly mounted on one side of the top of the support column (604), the other end of the cross bracket (605) is rotatably connected to a collection tank (606), and the middle of the collection tank (606) is aligned with the support column (604); A guide plate (109) is fixedly mounted on the outside of the top of the built-in cabin (101); an annular groove (111) is formed on the top of the outer base shell (100) and located outside the built-in cabin (101); the guide plate (109) is slidably connected in the annular groove (111); and columnar grooves (110) are formed at both ends of the annular groove (111) of the outer base shell (100); the position of the columnar groove (110) corresponds to the position of the push block (104); and the bottom of the columnar groove (110) is A telescopic rod (107) is fixedly mounted on the top of the telescopic rod (107); a pressure rod (106) is fixedly mounted on the top of the telescopic rod (107); a first spring (108) is movably sleeved on the telescopic rod (107); the first spring (108) is always in a compressed state; a slider (105) is fixedly mounted on one end of the pressure rod (106); the slider (105) is slidably connected to the inside of the outer base shell (100); and one end of the slider (105) is fixedly connected to the push block (104); The built-in chamber (101) rotates while driving the guide plate (109) to rotate. When the first break (102) and the second break (103) are offset, the guide plate (109) presses the pressure rod (106) and causes it to move downward. The pressure rod (106) drives the push block (104) to move downward through the slider (105). The push block (104) slides in the second break (103) and removes materials adhered to the second break (103). When the first break (102) and the second break (103) are aligned, the guide plate (109) and the pressure rod (106) are offset. The elastic force of the first spring (108) drives the pressure rod (106) to rise, thereby causing the push block (104) to rise and reset.

2. The device for recovering precious metals from waste circuit boards according to claim 1, characterized in that: A first drive motor (300) is fixedly mounted on one side of the outer base shell (100); a first gear (301) is fixedly mounted on the shaft end of the first drive motor (300); a second gear (302) is meshingly connected to one side of the first gear (301); and the bottom of the second gear (302) is fixedly mounted on the top of the built-in cabin (101).

3. The device for recovering precious metals from waste circuit boards according to claim 2, characterized in that: The outer base shell (100) is fixedly mounted with a limiting sleeve (303) at both sides of the first drive motor (300), a plug rod (304) is movably inserted into the limiting sleeve (303), a pressure column (305) is fixedly mounted on the top of the plug rod (304), two guide blocks (306) symmetrical about the center of the first gear (301) are fixedly mounted on the bottom of the first gear (301), the guide blocks (306) are aligned with the pressure column (305), a connecting rod (307) is fixedly mounted on the bottom of the two plug rods (304), and the plug rods (304) are connected to the pressure column (305). 04) is movably sleeved with a second spring (308), the two ends of the second spring (308) are respectively fixedly mounted on the bottom of the limiting sleeve (303) and the top of the connecting rod (307), the second spring (308) is always in a stretched state, the two ends of the connecting rod (307) are sleeved with a third support block (405), a slide groove (406) is provided on the third support block (405), the two ends of the connecting rod (307) are movably connected in the slide groove (406), and one end of the third support block (405) is fixedly mounted on the bottom of one end of the material guide trough (403).

4. The device for recovering precious metals from waste circuit boards according to claim 3, characterized in that: A fixing block (200) is fixedly mounted on the bottom of the outer base shell (100), rollers (201) are mounted on both ends of the top of the fixing block (200), a guide rail (202) is fixedly mounted on the bottom of the built-in cabin (101), the guide rail (202) is adapted to the roller (201), a cone block (203) is fixedly mounted on the top of the fixing block (200), the top of the cone block (203) movably passes through the built-in cabin (101) and extends to the inside, and scrapers (204) are fixedly mounted on both sides of the cone block (203) and located inside the built-in cabin (101), the path of the scraper (204) being arc-shaped.

5. The device for recovering precious metals from waste circuit boards according to claim 4, characterized in that: The material guide trough (403) is arranged in an inclined manner, and the end of the material guide trough (403) close to the collecting trough (606) is the bottom end. The bottom end of the material guide trough (403) is rotatably connected to a baffle (500), and a protrusion (501) is fixedly installed on one side of the baffle (500). The cross-sectional shape of the protrusion (501) is triangular. A magnet (502) is embedded and connected to one side of the bottom end of the material guide trough (403), and the baffle (500) is made of magnetic material. A protrusion (611) is fixedly installed on one side of the collecting trough (606), and one end of the protrusion (611) is compatible with the baffle (500) and the protrusion (501).

6. The device for recovering precious metals from waste circuit boards according to claim 5, characterized in that: The collecting trough (606) is rotatably connected to one end of the cross bracket (605) with a door panel (607), a torsion spring (608) is installed at the connection between the door panel (607) and the collecting trough (606), one end of the door panel (607) is movably hinged to two pull rods (609), the two pull rods (609) are hinged to each other, the other end of the pull rod (609) is hinged to a support frame (610), and the end of the support frame (610) is fixedly installed on one side of the cross bracket (605).

7. The device for recovering precious metals from waste circuit boards according to claim 6, characterized in that: A rectangular groove is formed on the top of the support column (604); an electric push rod (700) is fixedly mounted on the bottom of the rectangular groove of the support column (604); an L-shaped frame (701) is fixedly mounted on the top of the electric push rod (700); one end of the L-shaped frame (701) is rotatably connected to an inner plug shaft (702); an outer sleeve (703) is movably sleeved on the outer side of the inner plug shaft (702); a distal end of the outer sleeve (703) is rotatably connected to a positioning shaft (706); and the positioning shaft (706) is rotatably connected to the outer plug shaft (702). ) is rotatably connected to the bottom of the outer sleeve (703), one side of the positioning block (707) is fixedly mounted on the side of the mounting block (603), one side of the inner plug shaft (702) is provided with a notch (704), a clamping block (705) is fixedly mounted on the bottom of the inner plug shaft (702), the clamping block (705) penetrates the side wall of the outer sleeve (703) and extends to the outside, and a stopper (708) is fixedly mounted on the side of the mounting block (603), the position of the stopper (708) corresponding to the clamping block (705).

8. The device for recovering precious metals from waste circuit boards according to claim 7, characterized in that: Fixed frames (800) are fixedly mounted on both sides of the outer base shell (100) and the mounting frame (600), and a conveyor belt (801) is installed between the two fixed frames (800), and the conveyor belt (801) is located at the bottom of the screening trough (404).

9. A method for recovering precious metals from waste circuit boards, comprising the device for recovering precious metals from waste circuit boards according to claim 8, characterized in that: The steps of the method for recovering precious metals from waste circuit boards are as follows: S1. When in use, the waste circuit boards are placed into the built-in compartment (101), and the first drive motor (300) is started. The first drive motor (300) drives the first gear (301) to rotate. The first gear (301) drives the second gear (302) to rotate by meshing. The second gear (302) drives the built-in compartment (101) to rotate. When the built-in compartment (101) rotates, the waste circuit boards loaded inside are driven to rotate together. Under the guidance of the scraper (204), the waste circuit boards slide toward the side wall of the built-in compartment (101) and slide toward the first break (102). When the first break (102) rotates to align with the second break (103), the shear force formed by the first break (102) and the second break (103) cuts the waste circuit boards, and the cut waste circuit boards fall onto the material guide trough (403); S2, the built-in cabin (101) rotates while driving the guide plate (109) to rotate. When the first break (102) and the second break (103) are offset, the guide plate (109) presses the pressure rod (106) and causes it to move downward. The pressure rod (106) drives the push block (104) to move downward through the slider (105). The push block (104) slides in the second break (103) and removes the material adhered to the second break (103). When the first break (102) and the second break (103) are aligned, the guide plate (109) and the pressure rod (106) are offset. The elastic force of the first spring (108) drives the pressure rod (106) to rise, thereby causing the push block (104) to rise and reset. S3. When the first driving motor (300) drives the first gear (301) to rotate, the first gear (301) drives the guide block (306) to rotate. When the guide block (306) abuts against the pressure column (305), the pressure column (305) drives the connecting rod (307) to move downward through the insertion rod (304). When the pressure column (305) and the guide block (306) are offset, the tension of the second spring (308) pulls the connecting rod (307) to reset, and the connecting rod (307) is reciprocated in this way to achieve the up and down vibration of the connecting rod (307). The connecting rod (307) vibrates up and down to drive the guide trough (403) to vibrate through the third support block (405) and the slide trough (406), and the waste circuit boards falling on the guide trough (403) slide toward the bottom under the action of the vibration, and when passing through the screening trough (404), the waste circuit boards of qualified size enter the screening trough (404), and enter the conveyor belt (801) through the screening trough (404), so as to be transported to the subsequent process, while the waste circuit boards of unqualified size slide into the collection trough (606); S4. When the collection tank (606) is full of waste circuit boards, the second drive motor (602) is started, the second drive motor (602) drives the screw rod (601) to rotate, and the screw rod (601) drives the mounting block (603) and its connecting components to move upward, so that the collection tank (606) moves upward. While the collection tank (606) moves, the convex plate (611) abuts against the baffle plate (500), so that the baffle plate (500) can be combined and kept motionless under the action of the magnet (502), and at this time, the unqualified waste circuit boards are blocked by the baffle plate (500); S5. When the mounting block (603) moves to the top, the second drive motor (602) is turned off, and the electric push rod (700) is started. The electric push rod (700) drives the L-shaped frame (701) to rise. As the L-shaped frame (701) rises, it rotates due to the pulling action of the inner plug shaft (702), the clamping block (705) and the outer sleeve (703), thereby causing the support column (604) to rotate. The support column (604) drives the collection trough (606) to rotate. As the L-shaped frame (701) rises, it drives the collection trough (606) to tilt upward. As one end of the collection trough (606) tilts upward, one end of the door panel (607) sinks. At this time, the two pull rods (609) are in a folded state. When the support column (604) drives the collection trough (606) to rotate ninety degrees, the stopper (708) abuts against the block (705), thereby making it staggered with the outer sleeve (703). At this time, the inner shaft (702) and the outer sleeve (703) can slide with each other. At the same time, the two pull rods (609) are in a straight state. The electric push rod (700) continues to drive the collection trough (606) to tilt up. The collection trough (606) opens by pulling the door panel (607) through the two pull rods (609). At this time, the material in the collection trough (606) falls into the built-in cabin (101) and is crushed for the second time. S6. When the materials in the collecting trough (606) are completely dumped, the electric push rod (700) is retracted to reset the collecting trough (606), and the second drive motor (602) is started in the reverse direction to lower the mounting block (603) and drive the collecting trough (606) to lower. When the collecting trough (606) drops to the bottom, the convex plate (611) on the side abuts against the convex block (501) to open the baffle plate (500). At this time, the waste circuit boards on the guide trough (403) fall into the collecting trough (606) through the baffle plate (500).

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