Waste circuit board rare and precious metal extractor

Abstract

The utility model relates to the technical field of circuit board recovery processing, in particular to a waste circuit board rare and precious metal extractor which comprises a crushing box and a waste circuit board inlet. The waste circuit board inlet is formed in the middle of the top of the crushing box, a crushing channel is formed in the upper side, communicating with the waste circuit board inlet, of the interior of the crushing box, the crushing channel is provided with a rotary crushing assembly with the adjustable crushing distance, and a partition mounting plate fixed into the crushing box is mounted at the bottom of the rotary crushing assembly. A discharging opening is formed in the position, corresponding to the bottom of the crushing channel, of the partition mounting plate, a vibrating type filtering assembly is arranged at the bottom of the discharging opening, and the crushed waste circuit boards fall onto the vibrating type filtering assembly to be rapidly filtered and then are output for subsequent extraction of rare and precious metals. The precision and range of crushing treatment of the equipment on the waste circuit board are greatly improved, and then the equipment is matched with the vibrating type filtering assembly, so that the quality of earlier-stage treatment of the equipment on the waste circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board recycling and processing, in particular to a rare and precious metal extractor for waste circuit boards. Background Art

[0002] Waste circuit boards generally include ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, etc. With the accelerated replacement of electrical appliances, there are more and more waste circuit boards. Many circuit boards contain a certain amount of precious metals. If they are discarded directly, it will not only cause a waste of resources, but also pollute the environment.

[0003] The existing patent authorization number is: CN219334353U, which discloses a rare and precious metal extraction device for waste circuit boards, including a box body, a crushing box is fixedly connected to the top of the box body, a crushing mechanism is arranged inside the crushing box, a second separation box is arranged at the bottom of the box body, and a first separation box is arranged at the bottom of both sides of the box body, a fixed seat is fixedly connected to the inside of the box body, an electric telescopic rod is fixedly connected to one side of the fixed seat, a push plate is fixedly connected to one end of the electric telescopic rod, and a collection frame is fixedly connected to the inside of the box body, and a notch is opened on the upper surface of the collection frame. This equipment can realize the classified collection of materials after crushing, improve the use effect of the equipment, and can make the crushed materials on the filter screen shake by knocking the filter screen with a rubber head to avoid clogging of the filter screen; after analyzing the above equipment, it can be found that the crusher therein adopts rotary extrusion crushing when crushing the waste circuit boards, but the crushing distance is initially fixed, and it is impossible to adjust at any time during the crushing process according to the size and width of the waste circuit boards, which affects the accuracy of the waste circuit boards and lacks effective adjustment ability. At the same time, when filtering the crushed waste circuit boards, only a simple shaking is performed with a rubber head. When facing a large number of waste circuit boards, it is difficult to quickly and fully shake and filter, which affects the filtering speed and quality;

[0004] Therefore, in view of the above-mentioned problems, the present technical solution proposes a rare and precious metal extractor for waste circuit boards. Utility Model Content

[0005] The utility model aims to provide a waste circuit board rare and precious metal extractor to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste circuit board rare metal extractor, comprising a crushing box and a waste circuit board inlet; the waste circuit board inlet is opened in the middle of the top of the crushing box, and a crushing channel is arranged on the upper side of the crushing box connected to the waste circuit board inlet, and a rotary crushing assembly with adjustable crushing spacing is arranged at the crushing channel, and the rotary crushing assembly adjusts the width of the crushing channel according to the size of the waste circuit boards to be crushed, so as to ensure adaptive crushing of waste circuit boards of different widths, and a partition installation fixed inside the crushing box is installed at the bottom of the rotary crushing assembly A discharge port is provided on the partition mounting plate corresponding to the bottom of the crushing channel. The waste circuit boards crushed by the rotary crushing assembly are transferred downward through the discharge port under the action of gravity. A vibration filtering assembly is provided at the bottom of the discharge port. The crushed waste circuit boards fall onto the vibration filtering assembly for rapid filtration and are then output for subsequent extraction of rare and precious metals. By adopting a rotary crushing assembly with adjustable crushing spacing, the accuracy and range of the crushing treatment of waste circuit boards by this equipment can be greatly improved, and then combined with the vibration filtering assembly, the quality of the early treatment of waste circuit boards by this equipment can be further improved.

[0007] Compared with the prior art, the utility model has the following beneficial effects: by arranging fixed crushing wheels and mobile crushing wheels on both sides of the crushing channel, the width of the crushing channel is adjusted by the movement of the mobile crushing wheels, so as to adaptively squeeze and crush waste circuit boards of different sizes and widths, thereby ensuring the accuracy of crushing the waste circuit boards and improving the applicable scope of the equipment;

[0008] By setting up a set of servo motors, under the cooperation of side gear 1, side gear 2 and spur gear rod, the fixed crushing wheel and the mobile crushing wheel are synchronously driven to rotate, thereby fully improving the utilization rate of kinetic energy of the equipment;

[0009] By arranging a filter plate groove driven by a servo motor to swing up and down at the bottom of the discharge port, it is ensured that when filtering different amounts of waste circuit boards, the vibration amplitude is adjusted by the rotation speed of the servo motor, thereby fully improving the speed and efficiency of filtering the waste circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the main internal structure of a waste circuit board rare metal extractor.

[0011] Figure 2 This is a schematic diagram of the internal three-dimensional structure of a waste circuit board rare metal extractor.

[0012] Figure 3 The figure is a schematic diagram of the internal side view structure of a waste circuit board rare and precious metal extractor.

[0013] Figure 4 for Figure 2Schematic diagram of the enlarged structure of A.

[0014] Figure 5 This is a schematic diagram of the structure of a vibration mechanism in a rare metal extractor for waste circuit boards;

[0015] Among them: crushing box 10, waste circuit board inlet 11, discharge port 12, filter plate slot 13, partition mounting plate 14, slide rail 15, slide plate 16, screw 17, handle 18, fixed crushing wheel 19, mobile crushing wheel 20, crushing teeth 21, side gear 1 22, side gear 2 23, spur gear rod 24, servo motor 25, mounting block 27, rotating disk 28, centrifugal swing block 29, fixed column 30, set 31, rotating rod 32, driven spur gear 34, driving spur gear 35, servo motor 36. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0017] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0020] See also Figure 1-Figure 3A waste circuit board rare metal extractor comprises a crushing box 10 and a waste circuit board inlet 11; the waste circuit board inlet 11 is opened in the middle of the top of the crushing box 10, and a crushing channel is arranged on the upper side of the crushing box 10 connected with the waste circuit board inlet 11, and a rotary crushing assembly with adjustable crushing spacing is arranged at the crushing channel. The rotary crushing assembly adjusts the width of the crushing channel according to the size of the waste circuit boards to be crushed, so as to ensure adaptive crushing of waste circuit boards of different widths, and a partition mounting plate 14 fixed inside the crushing box 10 is installed at the bottom of the rotary crushing assembly, and the bottom of the crushing channel is provided with a partition mounting plate 14 fixed inside the crushing box 10. A discharge port 12 is provided on the partition mounting plate 14 corresponding to the part. The waste circuit boards after being crushed by the rotary crushing assembly are transferred downward through the discharge port 12 under the action of gravity. A vibration filtering assembly is provided at the bottom of the discharge port 12. The crushed waste circuit boards fall onto the vibration filtering assembly for rapid filtration and are then output for subsequent extraction of rare and precious metals. By adopting a rotary crushing assembly with adjustable crushing spacing, the accuracy and range of the crushing treatment of the waste circuit boards by this equipment can be greatly improved, and then combined with the vibration filtering assembly, the quality of the early treatment of the waste circuit boards by this equipment can be further improved.

[0021] In the embodiment of the present invention, output ports with a V-shaped structure are installed on both sides of the bottom of the waste circuit board inlet 11 corresponding to the top of the crushing channel, and the waste circuit boards are transferred toward the crushing channel by means of the output ports; a collecting trough is provided at the bottom of the vibration filtering assembly for collecting the crushed pieces of waste circuit boards that meet the requirements after filtering.

[0022] In one embodiment of the present invention, see Figure 4The rotary crushing assembly includes a fixed crushing wheel 19 and a mobile crushing wheel 20 respectively arranged on both sides of the crushing channel. The fixed crushing wheel 19 and the mobile crushing wheel 20 are connected to a group of power mechanisms on the same side. When the power mechanism is running, the fixed crushing wheel 19 and the mobile crushing wheel 20 are synchronously driven to rotate. Crushing teeth 21 are evenly installed on the circumferential outer walls of the fixed crushing wheel 19 and the mobile crushing wheel 20. Under the rotation of the fixed crushing wheel 19 and the mobile crushing wheel 20, the crushing teeth 21 perform a rotary extrusion crushing process on the waste circuit boards passing between the crushing channels. Shafts are fixedly installed at the centers of both ends of the fixed crushing wheel 19 and the mobile crushing wheel 20. Support rods are arranged on the shafts at both ends of the fixed crushing wheel 19 toward the partition mounting plate 14. First, under the action of the support rod 1, the fixed crushing wheel 19 is kept in a fixed state in the horizontal position. At this time, the crushing teeth 21 on the fixed crushing wheel 19 facing the crushing channel are placed on the edge of the crushing channel adjacent to the fixed crushing wheel 19. The two end shafts on the mobile crushing wheel 20 are also supported and sleeved with support rods 2 downward. A slide plate 16 is fixedly installed at the bottom of the support rod 2. A transverse slide rail 15 is provided on the partition mounting plate 14 corresponding to the bottom of the slide plate 16. The slide plate 16 is placed inside the slide rail 15 and moves transversely, thereby adjusting the transverse position of the mobile crushing wheel 20, and then adjusting the transverse distance between the fixed crushing wheel 19 and the mobile crushing wheel 20, controlling the width of the crushing channel, and then accurately extruding and crushing the waste circuit boards of different sizes and widths;

[0023] Specifically, a screw rod 17 is rotatably connected to the side of the slide plate 16 away from the discharge port 12, and the end of the screw rod 17 is threaded through the partition mounting plate 14 and extends to the outside of the crushing box 10, where a rotating handle 18 is fixedly installed. That is, rotating the rotating handle 18 drives the screw rod 17 to move horizontally, thereby driving the slide plate 16 to move in the slide rail 15, adjusting the position of the mobile crushing wheel 20 away from the fixed crushing wheel 19, and at the same time adjusting the opening width of the discharge port 12, so as to control the opening size of the discharge port 12 to change synchronously with the falling amount of the waste circuit boards in the crushing channel.

[0024] As a preferred embodiment of the present invention, the power mechanism includes a side gear 1 22 and a side gear 2 23 installed on the end shafts of the fixed crushing wheel 19 and the mobile crushing wheel 20. The side gear 1 22 and the side gear 2 23 are spaced apart along the axial direction of the fixed crushing wheel 19. A group of spur gear rods 24 are meshed together between the side gear 1 22 and the side gear 2 23. A servo motor 25 is connected to one end of the spur gear rod 24. The servo motor 25 is started to drive the spur gear rod 24 to rotate, and then the meshing between the side gear 1 22, the side gear 23 and the spur gear rod 24 is used to drive the fixed crushing wheel 19 and the mobile crushing wheel 20 to rotate synchronously. The side gear 1 22, the side gear 23 and the spur gear rod 24 slide along the axial direction of the spur gear rod 24 to ensure that when the mobile crushing wheel 20 moves laterally, the side gear 2 23 and the spur gear rod 24 can still mesh and move smoothly, thereby realizing the driving function of using a single group of servo motors 25 to synchronously drive the spur gear rod 24 and the servo motor 25 to operate.

[0025] As a preferred embodiment of the present invention, the vibration filtering assembly includes a filter plate groove 13 arranged below the discharge port 12, the filter plate groove 13 is used to filter the crushed waste circuit boards, and a ring is installed in the middle of both ends of the filter plate groove 13, and a fixed column 30 is installed in the middle of the ring. The two ends of the fixed column 30 are respectively fixedly connected to the bottom of the partition mounting plate 14 and the top of the waste circuit board inlet 11, and the fixed columns 30 located on both sides of the ring are installed with a sleeve 31. Under the elastic action of the sleeve 31 on the upper and lower sides of the ring, the filter plate groove 13 is kept to be able to vibrate longitudinally, so that the waste circuit boards to be filtered are fully and significantly filtered.

[0026] As a preferred embodiment of the present invention, refer to Figure 5 , a rotating rod 32 is rotatably arranged at the middle part of the bottom of the filter plate slot 13, and both ends of the rotating rod 32 are positioned by the mounting block 27. Rotating disks 28 are installed at the ends of the mounting block 27, and centrifugal swing blocks 29 with a V-shaped structure are radially installed on the edge of the rotating disk 28. When the rotating rod 32 rotates, centrifugal force is generated by the position distribution between the centrifugal swing block 29 and the rotating disk 28, thereby driving the filter plate slot 13 to cooperate with the fixed column 30 and the sleeve 31 to cyclically shake in the vertical direction, and a driven spur tooth 34 is fixedly installed in the middle part of the rotating rod 32, and a driving spur tooth 35 is meshed on one side of the driven spur tooth 34. A servo motor 36 fixed to the bottom of the filter plate slot 13 is installed at one end of the driving spur tooth 35. The servo motor 36 is started to drive the driving spur tooth 35 to rotate, thereby driving the driven spur tooth 34 to control the rotation of the rotating rod 32, so as to realize the automatic drive cycle shaking of the filter plate slot 13, and ensure that a large number of waste circuit crushing plates are efficiently and fully filtered.

[0027] The working principle of the utility model is: in the idle position of the device, all the driving parts mentioned above, which refer to the power elements, electrical components and the adapted power supply, are connected through wires, and the electrical connection between the electrical components is completed in a sequential working order. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process, and does not explain the electrical control. The waste circuit boards to be broken and processed are transferred along the waste circuit board inlet 11 to the crushing channel inside the crushing box 10. Before input, according to the size of the waste circuit boards, the slide plate 16 is adjusted to move along the inside of the slide rail 15 by manually rotating the turning handle 18 to adjust the width of the crushing channel to the best, and then the servo motor 2 is started. 5 drives the spur gear rod 24 to rotate, and then synchronously drives the side gear 1 22 and the side gear 2 23 to drive the fixed crushing wheel 19 and the mobile crushing wheel 20 to rotate, and then uses the crushing teeth 21 on the fixed crushing wheel 19 and the mobile crushing wheel 20 to squeeze and crush the waste circuit boards in the crushing channel, and then under the action of gravity, passes through the discharge port 12 and is transferred to the filter plate slot 13. At this time, the servo motor 36 is started to drive the spur gear 35 to rotate, and then drives the rotating rod 32 to control the centrifugal swing block 29 to swing, and cooperates with the fixed column 30 and the set 31 to drive the filter plate slot 13 to shake significantly, so as to quickly filter the waste circuit boards, and then transfer them to the collection tank for temporary storage after filtering.

[0028] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A waste circuit board rare metal extractor, characterized in that: The invention comprises a crushing box (10) and a waste circuit board inlet (11); the waste circuit board inlet (11) is opened at the top middle of the crushing box (10); a crushing channel is arranged on the upper side of the crushing box (10) which is connected to the waste circuit board inlet (11); a rotary crushing assembly with adjustable crushing spacing is arranged at the crushing channel; a partition mounting plate (14) fixed inside the crushing box (10) is installed at the bottom of the rotary crushing assembly; a feed opening (12) is opened on the partition mounting plate (14) corresponding to the bottom of the crushing channel; a vibrating filter assembly is arranged at the bottom of the feed opening (12).

2. The device for extracting rare and precious metals from waste circuit boards according to claim 1, characterized in that: Output ports in a V-shaped structure are installed on both sides of the bottom of the waste circuit board inlet (11) corresponding to the top of the crushing channel, and a collecting tank is arranged at the bottom of the vibration filter assembly.

3. The device for extracting rare and precious metals from waste circuit boards according to claim 2, characterized in that: The rotary crushing assembly comprises a fixed crushing wheel (19) and a mobile crushing wheel (20) respectively arranged on both sides of the crushing channel; a group of power mechanisms are commonly connected to the same side of the fixed crushing wheel (19) and the mobile crushing wheel (20); crushing teeth (21) are evenly installed on the circumferential outer walls of the fixed crushing wheel (19) and the mobile crushing wheel (20); shafts are fixedly installed at the centers of both ends of the fixed crushing wheel (19) and the mobile crushing wheel (20); support rods are arranged on the shafts at both ends of the fixed crushing wheel (19) toward the partition mounting plate (14) and support sleeves are provided with support rods 1; and the fixed crushing wheel (19) is provided with a support rod 2 that faces the crushing channel. The crushing teeth (21) on one side are arranged at the edge of one side of the crushing channel adjacent to the fixed crushing wheel (19); the shafts at both ends of the movable crushing wheel (20) are also supported downwardly by two support rods, a slide plate (16) is fixedly installed at the bottom of the two support rods, a partition mounting plate (14) corresponding to the bottom of the slide plate (16) is provided with a transverse slide rail (15), the slide plate (16) is arranged inside the slide rail (15) and moves transversely, a screw rod (17) is rotatably connected to the side of the slide plate (16) away from the discharge port (12), the end of the screw rod (17) is threadedly passed through the partition mounting plate (14) and extends to the outside of the crushing box (10), where a rotating handle (18) is fixedly installed.

4. The device for extracting rare and precious metals from waste circuit boards according to claim 3, characterized in that: The power mechanism comprises a side gear 1 (22) and a side gear 2 (23) mounted on the shafts at the ends of the fixed crushing wheel (19) and the mobile crushing wheel (20); the side gear 1 (22) and the side gear 2 (23) are spaced apart along the axial direction of the fixed crushing wheel (19); a group of spur gear rods (24) are meshed together between the side gear 1 (22) and the side gear 2 (23); one end of the spur gear rod (24) is connected to a servo motor (25).

5. The device for extracting rare and precious metals from waste circuit boards according to claim 4, characterized in that: The vibration filter assembly comprises a filter plate groove (13) arranged below the feed opening (12), a collar is installed in the middle of both ends of the filter plate groove (13), a fixing column (30) is sleeved in the middle of the collar, both ends of the fixing column (30) are respectively fixedly connected to the bottom of the partition mounting plate (14) and the top of the waste circuit board inlet (11), and sleeves (31) are sleeved on the fixing columns (30) located on both sides of the collar.

6. The device for extracting rare and precious metals from waste circuit boards according to claim 5, characterized in that: A rotating rod (32) is rotatably arranged at the middle of the bottom of the filter plate slot (13), and both ends of the rotating rod (32) are positioned by being fitted with a mounting block (27). Rotating disks (28) are mounted at both ends of the mounting block (27), and a centrifugal swing block (29) with a V-shaped structure is mounted radially outwardly on the edge of the rotating disk (28). A driven spur tooth (34) is fixedly mounted at the middle of the rotating rod (32), and a driving spur tooth (35) is meshed with one side of the driven spur tooth (34), and a servo motor (36) fixed to the bottom of the filter plate slot (13) is mounted at one end of the driving spur tooth (35).

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