Waste plastic screening and separating device

Abstract

The utility model discloses a waste plastic screening and separating device which is characterized in that two crushing rollers are rotatably arranged in a box body, one end of each crushing roller is fixedly connected with a gear, one end of one crushing roller is fixedly connected with a first motor, the first motor is fixedly connected with the box body, and the other end of the crushing roller is fixedly connected with a second motor; a second motor is fixedly arranged on the outer side of the box body, a threaded rod is rotationally connected to the outer portion of the box body, one end of the threaded rod is fixedly connected with the second motor, a filtering plate and two material guiding plates are fixedly arranged in the box body, after waste plastic is screened, a partition plate is pulled out, then magnets are pulled up, and the second motor is fixedly connected with the second motor; and in the process of pulling the magnet, the scraper can scrape off the iron metal adsorbed on the surface of the magnet, so that when the iron metal in the filtering frame needs to be cleaned, the iron metal can be collected only by pulling out the bottom plate, the workload of workers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste plastic screening, in particular to a waste plastic screening and separation device. Background Art

[0002] Waste plastic refers to discarded plastic products after consumption or use. Plastics will also produce waste and waste materials in the process of synthesis, molding, processing, circulation, etc. These plastic wastes are also called pre-consumer plastic waste. Although this also belongs to the scope of waste plastics, due to the relatively small amount of its production, it is easy to recycle and has a high recycling value. Generally, manufacturers will recycle it themselves and use the recycled products directly in production. In our daily life and various fields of agricultural production, plastic products are everywhere. When the life or use purpose of these products is reached, they will be discarded and become waste plastics.

[0003] For example, Chinese patent application number CN202022313831.8, pour plastic waste of different sizes from the feed hopper into the box, start the second motor, and then make the two crushing rollers engage with each other to crush the larger plastics, and some very small dust and some water fall into the bottom of the box through the filter net. After completion, they are discharged through the drain pipe for separation, and the first motor is started. The electromagnet moves to the left, and then the iron metal is adsorbed. The rest of the plastic is pushed out from the discharge port into the collection box for collection. Since the plastic is crushed, it is more convenient to transport and reduces the space occupied, and the metal is recycled and reused.

[0004] However, in actual use, the electromagnet absorbs iron metal. After the waste plastics are screened, the iron metal absorbed on the surface of the electromagnet needs to be cleaned manually, which not only increases the workload of the staff, but also reduces the work efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a waste plastic screening and separation device, so that after the waste plastic is screened, the iron metal adsorbed on the surface of the electromagnet can be quickly cleaned, reducing manual labor and improving cleaning efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste plastic screening and separation device, comprising a box body, two crushing rollers are rotatably arranged inside the box body, one end of the two crushing rollers are fixedly connected to gears, one end of one of the crushing rollers is fixedly connected to a first motor, and the first motor is fixedly connected to the box body.

[0007] A second motor is fixedly arranged on the outside of the box body, a threaded rod is rotatably connected to the outside of the box body, one end of the threaded rod is fixedly connected to the second motor, a filter plate and two material guide plates are fixedly arranged on the inside of the box body, two collection frames are connected to the outside of the box body, and a discharge pipe is connected to the bottom of the box body.

[0008] A filter frame is arranged inside the box body, a partition is slidably connected to the top of the filter frame, two scrapers are fixedly arranged on the top of the filter frame, a magnet is slidably arranged inside the filter frame, and a bottom plate is slidably arranged at the bottom of the filter frame.

[0009] As a further preferred embodiment of the present technical solution, a movable block is threadedly connected to the outer side of the threaded rod, one end of the movable block is fixedly connected to a connecting rod, and the connecting rod is fixedly connected to the filter frame. A groove is provided on the surface of the box body for the connecting rod to move, and the groove is started on the surface of the box body to facilitate the connecting rod to drive the filter frame to move.

[0010] As a further preferred embodiment of the present technical solution, the partition is arranged in an inverted V shape, the bottom of the partition is fixedly connected to a limiting block, and the surface of the filter frame is provided with a limiting groove for the movement of the limiting block. The partition is arranged in an inverted V shape to facilitate the falling of waste plastic particles.

[0011] As a further preferred embodiment of the present technical solution, sliding blocks are fixedly provided at both ends of the magnet, and a sliding groove for the sliding block to move is provided inside the filter frame. The sliding groove is provided inside the filter frame to facilitate pulling out the magnet.

[0012] As a further preferred embodiment of the present technical solution, T-shaped moving blocks are fixedly provided at both ends of the bottom plate, a T-shaped slot for the moving block to move is provided at the bottom of the filter frame, an opening is provided on one side of the filter frame, and an opening is provided on one side of the filter frame, so as to facilitate the collection of iron metal.

[0013] As a further preferred embodiment of the present technical solution, the two material guide plates are both arranged obliquely inside the box.

[0014] As a further preferred embodiment of the present technical solution, an inspection door is provided on one side of the box body, and a feed port is provided on the top of the box body.

[0015] The utility model provides a waste plastic screening and separation device, which has the following beneficial effects:

[0016] (1) The utility model sets a filter frame. After the waste plastics are screened, the partition is pulled out, and then the magnet is pulled up. In the process of pulling the magnet, the scraper will scrape off the iron metal adsorbed on the surface of the magnet. In this way, when the iron metal in the filter frame needs to be cleaned, it only needs to pull out the bottom plate to collect the iron metal, which reduces the workload of the staff and improves work efficiency.

[0017] (2) The utility model provides a guide plate. After the waste plastics are crushed and fall, larger particles fall on the filter plate. The filter frame pushes the larger particles into the collection frame, and smaller particles fall from the discharge pipe along the guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the filter frame of the utility model.

[0021] In the figure: 1. box body; 2. first motor; 3. second motor; 4. crushing roller; 5. filter plate; 6. guide plate; 7. filter frame; 8. partition; 9. magnet; 10. bottom plate; 11. scraper; 12. collecting frame; 13. threaded rod; 14. discharge pipe; 15. gear. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] Embodiment 1: The utility model designs a waste plastic screening and separation device, and the specific structure is as follows:

[0024] See also Figure 1 , Figure 2 Two crushing rollers 4 are rotatably arranged inside the box body 1, one end of each of the two crushing rollers 4 is fixedly connected to a gear 15, one end of one of the crushing rollers 4 is fixedly connected to a first motor 2, the first motor 2 is fixedly connected to the box body 1, an inspection door is provided on one side of the box body 1, and a feed port is provided on the top of the box body 1.

[0025] A second motor 3 is fixedly arranged on the outside of the box body 1, and a threaded rod 13 is rotatably connected to the outside of the box body 1, one end of the threaded rod 13 is fixedly connected to the second motor 3, and a movable block is threadedly connected to the outside of the threaded rod 13, one end of the movable block is fixedly connected to a connecting rod, and the connecting rod is fixedly connected to the filter frame 7. A groove for the movement of the connecting rod is provided on the surface of the box body 1, and the groove is started on the surface of the box body 1 to facilitate the connecting rod to drive the filter frame 7 to move. A filter plate 5 and two material guide plates 6 are fixedly arranged inside the box body 1, and the two material guide plates 6 are both inclinedly arranged inside the box body 1. The outside of the box body 1 is connected to two collecting frames 12, and the bottom of the box body 1 is connected to a discharge pipe 14.

[0026] See also Figure 2 , Figure 3, a filter frame 7 is arranged inside the box body 1, and a partition 8 is slidably connected to the top of the filter frame 7, and the partition 8 is arranged in an inverted V shape. The bottom of the partition 8 is fixedly connected to a limit block. A limit groove for the limit block to move is provided on the surface of the filter frame 7. The partition 8 is arranged in an inverted V shape, which is convenient for the waste plastic particles to fall. Two scrapers 11 are fixedly arranged on the top of the filter frame 7, and a magnet 9 is slidably arranged inside the filter frame 7. Sliding blocks are fixedly arranged at both ends of the magnet 9. A sliding groove for the sliding block to move is provided inside the filter frame 7. A sliding groove is provided inside the filter frame 7, which is convenient for pulling out the magnet 9. A bottom plate 10 is slidably arranged at the bottom of the filter frame 7, and T-shaped moving blocks are fixedly arranged at both ends of the bottom plate 10. A T-shaped slot for the moving block to move is provided at the bottom of the filter frame 7. An opening is provided on one side of the filter frame 7, and an opening is provided on one side of the filter frame 7, which is convenient for collecting iron metal.

[0027] Embodiment 2: The separation device designed by the utility model has the following specific working principles:

[0028] First, waste plastics are poured into the box 1 from the feed port, and the first motor 2 is started. The first motor 2 drives one of the crushing rollers 4 to rotate, thereby driving the two gears 15 to rotate, and the other crushing roller 4 will also rotate to crush the waste plastics.

[0029] Then, the crushed plastic particles will fall onto the surface of the filter plate 5, and smaller particles will fall onto the bottom of the box body 1 along the guide plate 6. The valve outside the discharge pipe 14 can be opened to collect the particles.

[0030] In addition, larger plastic particles will fall on the surface of the filter plate 5, starting the second motor 3 in forward and reverse rotation. The second motor 3 drives the threaded rod 13 to rotate, thereby driving the filter frame 7 to move. Since a magnet 9 is provided inside the filter frame 7, when the filter frame 7 pushes large particles, it can absorb iron metal and push the large particles into the collection frames 12 on both sides of the box body 1.

[0031] When it is necessary to collect iron metal, the inspection door on one side of the box body 1 is opened, the partition 8 is pulled out, and the magnet 9 is pulled upward. Under the action of the two scrapers 11, the iron metal on the surface of the magnet 9 is scraped off, and the scraped iron metal will fall on the surface of the bottom plate 10. In this way, the bottom plate 10 can be pulled out to collect the iron metal.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste plastic screening and separation device, comprising a box (1), characterized in that: Two crushing rollers (4) are rotatably arranged inside the housing (1), one end of each of the two crushing rollers (4) is fixedly connected to a gear (15), one end of one of the crushing rollers (4) is fixedly connected to a first motor (2), and the first motor (2) is fixedly connected to the housing (1); A second motor (3) is fixedly arranged on the outside of the box (1), a threaded rod (13) is rotatably connected to the outside of the box (1), one end of the threaded rod (13) is fixedly connected to the second motor (3), a filter plate (5) and two material guide plates (6) are fixedly arranged inside the box (1), the outside of the box (1) is connected to two collecting frames (12), and the bottom of the box (1) is connected to a discharge pipe (14); A filter frame (7) is arranged inside the box body (1), a partition plate (8) is slidably connected to the top of the filter frame (7), two scrapers (11) are fixedly arranged on the top of the filter frame (7), a magnet (9) is slidably arranged inside the filter frame (7), and a bottom plate (10) is slidably arranged at the bottom of the filter frame (7).

2. A waste plastic screening and separation device according to claim 1, characterized in that: The outer side of the threaded rod (13) is threadedly connected to a movable block, one end of the movable block is fixedly connected to a connecting rod, and the connecting rod is fixedly connected to the filter frame (7), and a groove for the connecting rod to move is provided on the surface of the box body (1).

3. The waste plastic screening and separation device according to claim 1, characterized in that: The partition (8) is arranged in an inverted V shape, the bottom of the partition (8) is fixedly connected to a limit block, and the surface of the filter frame (7) is provided with a limit groove for the limit block to move.

4. The waste plastic screening and separation device according to claim 1, characterized in that: Sliding blocks are fixedly arranged at both ends of the magnet (9), and a sliding groove for the sliding block to move is provided inside the filter frame (7).

5. The waste plastic screening and separation device according to claim 1, characterized in that: T-shaped moving blocks are fixedly arranged at both ends of the bottom plate (10), a T-shaped slot for the moving block to move is provided at the bottom of the filter frame (7), and an opening is provided at one side of the filter frame (7).

6. The waste plastic screening and separation device according to claim 1, characterized in that: The two material guide plates (6) are both arranged in an inclined manner inside the box body (1).

7. The waste plastic screening and separation device according to claim 1, characterized in that: An inspection door is provided on one side of the box body (1), and a feed port is provided on the top of the box body (1).

Images