Granulating and crushing device for circuit board recycling

Abstract

The utility model relates to the field of circuit board recovery, in particular to a pelletizing and crushing device for circuit board recovery, which comprises a crushing shell, a crushing pipe is mounted at the center of the bottom end of the crushing shell, a base is mounted on the outer wall of the bottom of the crushing pipe, a crushing component is arranged on the inner wall of the crushing shell, and a crushing component is arranged on the inner wall of the crushing pipe. A conveying belt is arranged on one side of the crushing shell, and a stabilizing rod is installed between the outer wall of the bottom of the crushing shell and the base. The crushing assembly comprises a crushing roller rotationally connected to the inner wall of the crushing shell, a transmission gear installed at one end of the crushing roller and a gear motor installed on the outer wall of one side of the crushing shell. The smashing assembly comprises a main shaft rotationally connected to the center of the bottom end of the smashing pipe. According to the utility model, the gaps among the cutters in the first cutter group are larger to cut up circuit boards which fall into blocks, and the gaps among the cutters in the second cutter group are smaller to further smash falling particles, so that the particle forming efficiency is improved, and caking is avoided.

Description

Technical Field

[0001] This utility model relates to the field of circuit board recycling technology, and in particular to a pelletizing and crushing device for circuit board recycling. Background Technology

[0002] Circuit board names include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board (copper etching technology), etc.

[0003] After the circuit boards are recycled, they need to be centrally processed. First, obvious metals or important components are removed from the circuit boards. Then, the circuit boards are crushed and refined to extract the remaining metals. However, the current circuit board crushing equipment crushes the circuit boards, which causes some circuit boards to stick together after crushing, forming flattened circuit board sheets, which affects subsequent use. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems and shortcomings by proposing a pelletizing and crushing device for circuit board recycling: the blades in the first blade group have a larger gap to crush the circuit boards that have fallen into chunks, while the blades in the second blade group have a smaller gap to further crush the falling particles, thereby improving particle forming efficiency, preventing clumping, and solving the problem of the crushed parts being compressed into lumps.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pelletizing and crushing device for circuit board recycling includes a crushing shell, a crushing tube installed at the center of the bottom end of the crushing shell, and a base installed on the bottom outer wall of the crushing tube. A crushing assembly is provided on the inner wall of the crushing shell and the inner wall of the crushing tube. A conveyor belt is provided on one side of the crushing shell, and a stabilizing rod is installed between the bottom outer wall of the crushing shell and the base. The crushing assembly includes a crushing roller rotatably connected to the inner wall of the crushing shell, a transmission gear installed at one end of the crushing roller, and a reduction motor installed on the outer wall of one side of the crushing shell. The crushing assembly includes a main shaft rotatably connected to the center of the bottom end of the crushing tube, a central plate installed on the inner wall of the top end of the crushing tube, and a rotating sleeve rotatably connected to the center of the bottom outer wall of the central plate.

[0007] Preferably, one end of the crushing roller extends to the outer wall of the crushing shell, and the transmission gears mesh with each other. A protective cover is installed on the outer wall of the crushing shell at the transmission gear, and the transmission gear is located inside the protective cover.

[0008] Preferably, the output shaft of the geared motor is connected to one end of a crushing roller, and the crushing rollers interlock with each other, and a guide frame is installed on the top outer wall of the crushing shell.

[0009] Preferably, the top end of the main shaft is rotatably connected to the outer wall of the center plate, and internal gears are installed on both the outer wall of the top end of the main shaft and the inner wall of the top end of the rotating sleeve. The internal gears mesh with each other, and a discharge plate is installed on the outer wall of the main shaft at the bottom inner wall of the crushing tube.

[0010] Preferably, a first set of blades is installed at equal intervals at the top of the outer wall of the rotating sleeve, and a second set of blades is installed at equal intervals at the bottom of the outer wall of the rotating sleeve.

[0011] Preferably, a drive motor is installed on the bottom outer wall of the crushing tube inside the base, and the output shaft of the drive motor is connected to the bottom end of the main shaft, and the bottom end of the rotating sleeve is rotatably connected to the outer wall of the main shaft.

[0012] Preferably, a discharge port is provided on one side of the bottom inner wall of the crushing tube, and a guide plate is installed on the outer wall of the base at the discharge port. A collection port is provided on one end of the base at the guide plate, and a collection hopper is placed in the collection port.

[0013] Preferably, the drive motor, conveyor belt, and geared motor are connected to a switch via wires, and the switch is connected to a power source via wires.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The blades in the first blade group have a larger gap to cut the falling circuit board into smaller pieces. The blades in the second blade group have a smaller gap to further break down the falling particles, improving particle forming efficiency and preventing clumping.

[0016] 2. The rotation of the discharge plate on the main shaft discharges the particles from the discharge port. The discharged particles fall into the collection hopper along the outer wall of the base and the guide plate, which facilitates discharge and collection of particles.

[0017] 3. One crushing roller rotates and drives another crushing roller to rotate through a transmission gear. The two rotate in opposite directions, crushing the falling circuit board towards the middle of the crushing roller, which facilitates the early destruction of the circuit board and makes it easier to crush the board into granules later. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall cross-sectional structure of a pelletizing and crushing device for recycling circuit boards proposed in this utility model;

[0019] Figure 2 This is a partially unfolded structural diagram of a pelletizing and crushing device for recycling circuit boards proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of a pelletizing and crushing device for recycling circuit boards proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the crushing tube of a pelletizing and crushing device for recycling circuit boards proposed in this utility model.

[0022] In the diagram: 1 Crushing shell, 2 Crushing tube, 3 Base, 4 Stabilizing rod, 5 Crushing assembly, 6 Crushing assembly, 7 Conveyor belt, 8 Crushing roller, 9 Transmission gear, 10 Gear motor, 11 Protective cover, 12 Guide frame, 13 Center plate, 14 Main shaft, 15 Rotating sleeve, 16 Internal gear, 17 First cutter group, 18 Second cutter group, 19 Discharge plate, 20 Drive motor, 21 Discharge port, 22 Guide plate, 23 Collection port, 24 Collection hopper. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1:

[0025] Reference Figure 1-3 A pelletizing and crushing device for recycling circuit boards includes a crushing shell 1, a crushing tube 2 installed at the center of the bottom end of the crushing shell 1, a base 3 installed on the bottom outer wall of the crushing tube 2, a crushing component 5 provided on the inner wall of the crushing shell 1, a crushing component 6 provided on the inner wall of the crushing tube 2, a conveyor belt 7 provided on one side of the crushing shell 1, and a stabilizing rod 4 installed between the bottom outer wall of the crushing shell 1 and the base 3.

[0026] The crushing assembly 5 includes a crushing roller 8 rotatably connected to the inner wall of the crushing shell 1, a transmission gear 9 installed at one end of the crushing roller 8, and a reduction motor 10 installed on the outer wall of one side of the crushing shell 1. The reduction motor 10 drives one crushing roller 8 to rotate and drives the other crushing roller 8 to rotate through the transmission gear 9. The two rotate in opposite directions, crushing the falling circuit board towards the middle of the crushing roller 8. The crushed circuit board falls from the bottom of the crushing shell 1 into the crushing tube 2.

[0027] One end of the crushing roller 8 extends to the outer wall of the crushing shell 1, and the transmission gears 9 mesh with each other. A protective cover 11 is installed on the outer wall of the crushing shell 1 at the location of the transmission gears 9, and the transmission gears 9 are located inside the protective cover 11.

[0028] The output shaft of the geared motor 10 is connected to one end of a crushing roller 8. The crushing rollers 8 interlock with each other, and a guide frame 12 is installed on the top outer wall of the crushing shell 1.

[0029] Example 2:

[0030] Reference Figure 1-2 and Figure 4The crushing assembly 6 includes a main shaft 14 rotatably connected to the center of the bottom end of the crushing tube 2, a central plate 13 installed on the inner wall of the top end of the crushing tube 2, and a rotating sleeve 15 rotatably connected to the center of the outer wall of the bottom of the central plate 13. The drive motor 20 drives the main shaft 14 to rotate and drives the rotating sleeve 15 to rotate through the internal gear 16, so that the first blade group 17 and the second blade group 18 rotate. The blades in the first blade group 17 have a larger gap, which cuts the falling circuit board into pieces. The blades in the second blade group 18 have a smaller gap, which further crushes the falling particles.

[0031] The top end of the main shaft 14 is rotatably connected to the outer wall of the center plate 13. Both the outer wall of the top end of the main shaft 14 and the inner wall of the top end of the rotating sleeve 15 are equipped with internal gears 16, which mesh with each other. The outer wall of the main shaft 14 is equipped with a discharge plate 19 located at the bottom inner wall of the crushing tube 2. One end of the main shaft 14 and the rotating sleeve 15 are rotatably connected to the bottom of the center plate 13. The main shaft 14 and the rotating sleeve 15 are driven by the internal gears 16. The bottom end of the rotating sleeve 15 is rotatably connected to the outer wall of the main shaft 14, which facilitates transmission and drives the first blade group 17 and the second blade group 18 to rotate.

[0032] The top of the outer wall of the rotating sleeve 15 is equipped with a first set of blades 17 that are evenly distributed, and the bottom of the outer wall of the rotating sleeve 15 is equipped with a second set of blades 18 that are evenly distributed. After the main shaft 14 in the crushing tube 2 rotates with the rotating sleeve 15, it drives the first set of blades 17, the second set of blades 18 and the discharge plate 19 to rotate respectively. The first set of blades 17 and the second set of blades 18 further crush the falling circuit board for subsequent use. The discharge plate 19 cooperates with the discharge port 21 to discharge particles, which facilitates crushing, improves crushing accuracy and facilitates subsequent use.

[0033] A drive motor 20 is installed on the bottom outer wall of the crushing tube 2 inside the base 3. The output shaft of the drive motor 20 is connected to the bottom end of the main shaft 14. The bottom end of the rotating sleeve 15 is rotatably connected to the outer wall of the main shaft 14. The drive motor 20 drives the main shaft 14 to rotate. The top end of the main shaft 14 is installed at the bottom of the center plate 13. The center plate 13 does not seal between the crushing shell 1 and the crushing tube 2, which facilitates transmission and material feeding.

[0034] A discharge port 21 is provided on one side of the bottom inner wall of the crushing tube 2. A guide plate 22 is installed on the outer wall of the base 3 at the discharge port 21. A collection port 23 is provided at one end of the guide plate 22 on the base 3. A collection hopper 24 is placed in the collection port 23. The base 3 and the crushing shell 1 are connected by a stabilizing rod 4, which connects the crushing shell 1, the crushing tube 2 and the base 3 into a whole to ensure the stability of the whole. The guide plate 22 at the discharge port 21 of the base 3 cooperates with the collection hopper 24 at the collection port 23 to facilitate the collection of discharged particles and facilitate use.

[0035] The drive motor 20, the conveyor belt 7, and the geared motor 10 are connected to the switch via wires, and the switch is connected to the power supply via wires.

[0036] Working principle: During use, the circuit board to be crushed is sent to the top of the crushing shell 1 via the conveyor belt 7. The reduction motor 10 and the drive motor 20 are started. The reduction motor 10 drives one crushing roller 8 to rotate and drives the other crushing roller 8 to rotate via the transmission gear 9. The two rotating in opposite directions crush the falling circuit board into the middle of the crushing roller 8. The crushed circuit board falls from the bottom of the crushing shell 1 into the crushing tube 2. The drive motor 20 drives the main shaft 14 to rotate and drives the rotating sleeve 15 to rotate via the internal gear 16, so that the first blade group 17 and the second blade group 18 rotate. The blades in the first blade group 17 have a larger gap, which cuts the falling circuit board into pieces. The blades in the second blade group 18 have a smaller gap, which further crushes the falling particles. The crushed particles fall into the bottom inner wall of the crushing tube 2. The rotation of the discharge plate 19 on the main shaft 14 discharges the particles from the discharge port 21. The discharged particles fall into the collection hopper 24 along the outer wall of the base 3 and the guide plate 22.

[0037] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A pelletizing and crushing device for circuit board recycling, comprising a crushing shell (1), characterized in that, A crushing tube (2) is installed at the center of the bottom end of the crushing shell (1), and a base (3) is installed on the bottom outer wall of the crushing tube (2). A crushing component (5) is provided on the inner wall of the crushing shell (1), and a crushing component (6) is provided on the inner wall of the crushing tube (2). A conveyor belt (7) is provided on one side of the crushing shell (1), and a stabilizing rod (4) is installed between the bottom outer wall of the crushing shell (1) and the base (3). The crushing assembly (5) includes a crushing roller (8) rotatably connected to the inner wall of the crushing shell (1), a transmission gear (9) installed at one end of the crushing roller (8), and a reduction motor (10) installed on the outer wall of one side of the crushing shell (1). The crushing assembly (6) includes a main shaft (14) rotatably connected to the center of the bottom end of the crushing tube (2), a center plate (13) installed on the inner wall of the top end of the crushing tube (2), and a rotating sleeve (15) rotatably connected to the center of the outer wall of the bottom end of the center plate (13).

2. The pelletizing and crushing device for circuit board recycling according to claim 1, characterized in that, One end of the crushing roller (8) extends to the outer wall of the crushing shell (1), and the transmission gears (9) mesh with each other. A protective cover (11) is installed on the outer wall of the crushing shell (1) at the transmission gear (9), and the transmission gear (9) is located inside the protective cover (11).

3. The pelletizing and crushing device for circuit board recycling according to claim 1, characterized in that, The output shaft of the geared motor (10) is connected to one end of a crushing roller (8), and the crushing rollers (8) mesh with each other. A guide frame (12) is installed on the top outer wall of the crushing shell (1).

4. The pelletizing and crushing device for circuit board recycling according to claim 1, characterized in that, The top end of the main shaft (14) is rotatably connected to the outer wall of the center plate (13), and internal gears (16) are installed on both the outer wall of the top end of the main shaft (14) and the inner wall of the top end of the rotating sleeve (15). The internal gears (16) mesh with each other. A discharge plate (19) is installed on the outer wall of the main shaft (14) at the bottom inner wall of the crushing tube (2).

5. The pelletizing and crushing device for circuit board recycling according to claim 1, characterized in that, The top of the outer wall of the rotating sleeve (15) is equipped with a first set of blades (17) that are evenly distributed, and the bottom of the outer wall of the rotating sleeve (15) is equipped with a second set of blades (18) that are evenly distributed.

6. The pelletizing and crushing device for circuit board recycling according to claim 1, characterized in that, The bottom outer wall of the crushing tube (2) is equipped with a drive motor (20) located inside the base (3), and the output shaft of the drive motor (20) is connected to the bottom end of the main shaft (14). The bottom end of the rotating sleeve (15) is rotatably connected to the outer wall of the main shaft (14).

7. The pelletizing and crushing device for circuit board recycling according to claim 1, characterized in that, A discharge port (21) is provided on one side of the bottom inner wall of the crushing tube (2), and a guide plate (22) is installed on the outer wall of the base (3) at the discharge port (21). A collection port (23) is provided at one end of the base (3) at the guide plate (22), and a collection hopper (24) is placed in the collection port (23).

8. A pelletizing and crushing device for circuit board recycling according to claim 6, characterized in that, The drive motor (20), conveyor belt (7) and geared motor (10) are connected to the switch via wires, and the switch is connected to the power supply via wires.

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