Waste plastic crushing device with screening mechanism

Abstract

The utility model discloses a waste plastic crushing device with a screening mechanism, and particularly relates to the technical field of plastic recovery, the waste plastic crushing device comprises a discharge bin and a crushing bin fixedly mounted at the top of the discharge bin, a lifting frame capable of reciprocating up and down is slidably mounted at the top of the crushing bin in a penetrating manner, and a crushing roller is rotatably mounted in the crushing bin; a cleaning box is fixedly installed on one side of the smashing bin, a fishing net plate is slidably installed in the cleaning box, a traction rod is hinged to one side of the fishing net plate, the end, away from the fishing net plate, of the traction rod is hinged to the top of the lifting frame, and a screening net plate and a discharging net plate which vibrate at the same frequency are sequentially slidably installed in the discharging bin from top to bottom; according to the device, the screening mesh plate vibrates up and down in the discharging bin in a reciprocating mode through the transmission mechanism, so that plastic crushed aggregates with the proper size are screened to the top of the discharging mesh plate which vibrates at the same frequency with the screening mesh plate, and the vibrating discharging mesh plate vibrates water away from the surfaces of the plastic crushed aggregates and gradually vibrates out of the discharging box.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic recycling, in particular to a waste plastic crushing device with a screening mechanism. Background Art

[0002] Patent announcement number CN213353143U discloses a pulverizing device for waste plastic reprocessing with a screening mechanism, including a box body, a screen mesh is slidably embedded inside the bottom end of the box body, and a transmission block extending to the outside of the box body is welded on the screen mesh, the central axis of the pulverizing roller is connected to a bevel gear through a gear set transmission, and the bevel gears are meshed with each other for transmission, and a connecting rod is sleeved at a center position of the horizontally arranged bevel gear, and the connecting rod and the transmission block are connected by a sliding sleeve. In this utility model, through the action of the gear set, the pulverizing roller is connected to the bevel gear for rotation, the bevel gears are meshed with each other, and the connecting rod is rotated, the bottom end of the connecting rod makes an eccentric motion about the bevel gear, and the transmission block makes a circular motion, and the transmission block drives the screen mesh located in the movable groove to make a circular motion, and the screen mesh shakes compared to the box body to realize the screening operation of the plastic, and the screening is realized through the linkage between the devices, which is simple and efficient, and improves the uniformity of the plastic.

[0003] The above technology uses a nozzle to clean waste plastics. The wastewater generated will pollute the discharge path of the plastic. The sludge in the wastewater remaining on the discharge path will cause secondary pollution to the discharged plastic. After the plastic is cleaned, water adheres to the surface, affecting the subsequent collection of plastic fragments. Utility Model Content

[0004] The utility model aims to provide a waste plastic crushing device with a screening mechanism.

[0005] The technical problems solved by the utility model are as follows: 1. After plastics are washed and crushed, the surface carries moisture, which increases the difficulty of collecting the plastic fragments later. 2. The waste water generated when washing plastics remains in the plastic removal path, which will cause secondary pollution to the plastic fragments.

[0006] The utility model can be realized through the following technical scheme: it includes a discharge bin and a crushing bin fixedly installed on the top thereof, a lifting frame that can reciprocate up and down is slidably installed on the top of the crushing bin, a crushing roller is rotatably installed inside the crushing bin, a cleaning box is fixedly installed on one side of the crushing bin, a salvage mesh plate is slidably installed inside the cleaning box, a traction rod is hinged on one side of the salvage mesh plate, and one end of the traction rod away from the salvage mesh plate is hinged to the top of the lifting frame, and a screening mesh plate and a discharge mesh plate that vibrate at the same frequency are slidably installed in sequence from top to bottom inside the discharge bin.

[0007] A further technical improvement of the utility model is that a plurality of contact blades are fixedly installed at the inner wall of the crushing bin near the crushing roller, and the contact blades are spaced apart from the crushing blades on the outer peripheral wall of the crushing roller to prevent waste plastics from being stuck on both sides of the crushing roller.

[0008] Furthermore, the structure for causing the lifting frame to reciprocate up and down includes a push-pull plate fixedly installed at the end of the central axis of the crushing roller, and the lifting frame is slidably connected to the side of the push-pull plate away from the crushing roller through a sliding rod.

[0009] Furthermore, the structure that causes the screening mesh and the discharge mesh to vibrate includes two sets of transmission mechanisms arranged on the top of the screening mesh, the transmission mechanism includes a gear rotatably installed passing through one side of the discharge bin, a rack meshing with the gear is fixedly installed at the bottom of the lifting frame, a first connecting plate is fixedly installed at the end of the gear away from the rack, a second connecting plate is rotatably installed at the end of the first connecting plate away from the gear, and the end of the second connecting plate away from the first connecting plate is hinged to the top of the screening mesh.

[0010] Furthermore, the structure that causes the screening mesh plate and the discharge mesh plate to slide at the same frequency is a support rod fixedly installed between the two.

[0011] Furthermore, one side of the discharge mesh is inclined to the ground, and the holes on the discharge mesh are set as fine holes, which are only used for drainage. During the vibration of the discharge mesh, the plastic scraps will gradually move to the designated position along the inclined surface of the discharge mesh.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The present application uses a transmission mechanism to make the screening mesh plate vibrate back and forth up and down in the discharge bin, thereby screening the plastic scraps of suitable size to the top of the discharge mesh plate vibrating at the same frequency as the plastic scraps. The vibrating discharge mesh plate vibrates the moisture off the surface of the plastic scraps and gradually vibrates them out of the discharge box.

[0014] 2. The present application uses a lifting frame in conjunction with a traction plate and a salvage net plate to push the cleaned waste plastics in the cleaning box into the crushing box, so that the cleaning liquid used to clean the waste plastics remains in the cleaning box, avoiding waste water from remaining on the discharge path of the plastic, thereby reducing the risk of secondary pollution to the plastic. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side view of the overall structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure connection of the utility model;

[0019] Figure 4 For the utility model Figure 3 A partial enlarged view of point A in the middle.

[0020] In the figure: 1. discharge bin; 2. crushing bin; 3. lifting frame; 4. cleaning box; 5. bracket; 6. fishing net plate; 7. traction rod; 8. crushing roller; 9. push-pull plate; 10. contact blade; 11. screening net plate; 12. discharge net plate; 13. support rod;

[0021] 14. Transmission mechanism; 141. Gear; 142. Rack; 143. First connecting plate; 144. Second connecting plate. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] See also Figure 1-4 As shown, this embodiment provides a waste plastic crushing device with a screening mechanism, including a discharge bin 1, a crushing bin 2 is fixedly installed on the top of the discharge bin 1, a lifting frame 3 is slidably installed through the top of the crushing bin 2, a cleaning box 4 is fixedly installed on one side of the crushing bin 2, a bracket 5 is fixedly installed between the cleaning box 4 and the discharge bin 1, a salvage mesh plate 6 is slidably installed in the cleaning box 4, a traction rod 7 is hinged on one side of the salvage mesh plate 6, and the end of the traction rod 7 away from the salvage mesh plate 6 is hinged to the top of the lifting frame 3;

[0024] When the lifting frame 3 moves upward, the traction rod 7 drives the salvage mesh plate 6 to move along the bottom wall of the cleaning box 4 toward the opening at the top of the crushing bin 2, thereby salvaging the waste plastic in the cleaning box 4 into the crushing bin 2. In this process, the arrangement of the mesh holes on the salvage mesh plate 6 enables the cleaning liquid in the cleaning box 4 to be retained in the cleaning box 4.

[0025] A crushing roller 8 is rotatably installed inside the crushing bin 2, and a driving motor (not shown in the figure) for driving the crushing roller 8 to rotate is fixedly installed on the crushing bin 2. The two ends of the central axis of the crushing roller 8 respectively penetrate the two sides of the crushing bin 2 and are fixedly installed with push-pull plates 9. The lifting frame 3 is slidably connected to the side of the push-pull plate 9 away from the crushing roller 8 through a sliding rod. A plurality of contact blades 10 are fixedly installed at the position of the inner wall of the crushing bin 2 near the crushing roller 8. The contact blades 10 and the crushing blades on the crushing roller 8 are arranged at intervals. When the crushing roller 8 rotates, it will drive the push-pull plate 9 to push and pull the lifting frame 3, so that the lifting frame 3 reciprocates up and down in the vertical direction;

[0026] A screening mesh plate 11 and a discharging mesh plate 12 are slidably installed in sequence from top to bottom inside the discharging bin 1. One side of the discharging mesh plate 12 is inclined to the ground. The holes on the discharging mesh plate 12 are fine holes and are only used for drainage. A plurality of support rods 13 are fixedly installed between the screening mesh plate 11 and the discharging mesh plate 12. Transmission mechanisms 14 are installed on both sides of the top of the screening mesh plate 11.

[0027] The transmission mechanism 14 includes a gear 141 that is rotatably mounted on the side wall of the discharge bin 1, a rack 142 that is fixedly mounted on the bottom of the lifting frame 3 and meshed with the gear 141, a first connecting plate 143 is fixedly mounted on the side of the gear 141 away from the rack 142, a second connecting plate 144 is rotatably mounted on the end of the first connecting plate 143 away from the gear 141, and an end of the second connecting plate 144 away from the first connecting plate 143 is hinged to the top of the screening mesh plate 11;

[0028] When the lifting frame 3 moves upward, it will drive the gear 141 to rotate counterclockwise through the rack 142. When the lifting frame 3 moves downward, the gear 141 will rotate clockwise. The rotating gear 141 drives the second connecting plate 144 through the first connecting plate 143 to act on the screening mesh plate 11, thereby making the screening mesh plate 11 reciprocate up and down in the discharge bin 1 to achieve the purpose of vibration. At the same time, through the setting of the support rod 13, the discharge mesh plate 12 and the screening mesh plate 11 vibrate at the same frequency. When the plastic fragments fall to the top of the vibrating discharge mesh plate 12, the plastic fragments will gradually move to the side of the discharge mesh plate 12 inclined to the ground, and then be discharged from the discharge bin 1.

[0029] When the utility model is in use, firstly, the waste plastic is placed in the cleaning box 4 for cleaning. When the waste plastic is cleaned, the crushing roller 8 is rotated, and the rotating crushing roller 8 drives the lifting frame to move upward through the push-pull plate 9, so that the lifting frame drives the salvage mesh plate 6 through the traction rod 7 to push the waste plastic in the cleaning box 4 into the crushing bin 2. The waste plastic is crushed into plastic fragments through the cooperation of the rotating crushing roller 8 and the contact blade 10. The plastic fragments fall from the bottom of the crushing bin 2 to the top of the screening mesh plate 11. The vibration of the screening mesh plate 11 can vibrate the plastic fragments of different sizes to the top of the discharge mesh plate 12, and at the same time, the moisture attached to the plastic fragments is vibrated off, and then the moisture on the plastic fragments is vibrated off to the ground through the fine holes on the discharge mesh plate 12 through the vibration of the discharge mesh plate 12, and the plastic fragments on the top of the screening mesh plate 11 move to the designated position along the inclined surface of the discharge mesh plate 12.

[0030] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A waste plastic pulverizing device with a screening mechanism, comprising a discharge bin (1) and a pulverizing bin (2) fixedly mounted on the top of the discharge bin, characterized in that: A lifting frame (3) capable of reciprocating up and down is slidably installed through the top of the crushing bin (2), a crushing roller (8) is rotatably installed inside the crushing bin (2), a cleaning box (4) is fixedly installed on one side of the crushing bin (2), a salvage mesh plate (6) is slidably installed inside the cleaning box (4), a traction rod (7) is hinged on one side of the salvage mesh plate (6), and one end of the traction rod (7) away from the salvage mesh plate (6) is hinged to the top of the lifting frame (3), and a screening mesh plate (11) and a discharge mesh plate (12) that vibrate at the same frequency are slidably installed in sequence from top to bottom inside the discharge bin (1).

2. The waste plastic crushing device with a screening mechanism according to claim 1, characterized in that: A plurality of contact blades (10) are fixedly mounted on the inner wall of the crushing bin (2) near the crushing roller (8), and the contact blades (10) are spaced apart from the crushing blades on the outer peripheral wall of the crushing roller (8).

3. The waste plastic crushing device with a screening mechanism according to claim 1, characterized in that: The structure that causes the lifting frame (3) to reciprocate up and down comprises a push-pull plate (9) fixedly mounted on the end of the central axis of the crushing roller (8), and the lifting frame (3) is slidably connected to the side of the push-pull plate (9) away from the crushing roller (8) through a sliding rod.

4. The waste plastic pulverizing device with a screening mechanism according to claim 1, characterized in that: The structure for causing the screening mesh plate (11) and the discharge mesh plate (12) to vibrate comprises two sets of transmission mechanisms (14) arranged on the top of the screening mesh plate (11), the transmission mechanism (14) comprising a gear (141) rotatably installed passing through one side of the discharge bin (1), a rack meshing with the gear (141) fixedly installed at the bottom of the lifting frame (3), a first connecting plate (143) fixedly installed at one end of the gear (141) away from the rack, a second connecting plate (144) rotatably installed at one end of the first connecting plate (143) away from the gear (141), and an end of the second connecting plate (144) away from the first connecting plate (143) is hinged to the top of the screening mesh plate (11).

5. The waste plastic crushing device with a screening mechanism according to claim 1, characterized in that: The structure that causes the screening mesh plate (11) and the discharge mesh plate (12) to slide at the same frequency is a support rod (13) fixedly installed between the two.

6. The waste plastic pulverizing device with a screening mechanism according to claim 1, characterized in that: One side of the discharge mesh plate (12) is inclined toward the ground, and the holes on the discharge mesh plate (12) are configured as fine holes.

Images