Particle screening device for plastic recycling

Abstract

The utility model relates to the technical field of plastic recovery, and discloses a particle screening device for plastic recovery, which comprises a screening box and a fixed bottom plate, working motors are assembled on the two sides of the screening box, guide plates are fixed at the upper positions of the two sides of the inner wall of the screening box, and guide grooves are formed in the guide plates. The fixed sleeves are assembled on the two sides of the inner wall of the screening box, then the sliding grooves are formed in the two sides of the screening box and embedded in the sliding blocks, the movable blocks are fixed to the side edges of the sliding blocks, the cam disc is driven to rotate after the working motor works, and therefore the screening effect is achieved. Under the rotation of a cam disc, when the cam disc rotates to the lowest surface, a connecting rod falls in a fixing sleeve, and when the cam disc rotates to the highest surface, the connecting rod moves upwards and hammers a movable block through a hammering head, and at the moment, when the movable block moves up and down, a second screening plate can shake under the compression and extension of a buffer spring; in this way, the overall screening capacity is well improved in the shaking process.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic recycling, in particular to a particle screening device for plastic recycling. Background Art

[0002] Plastic recycling refers to the process of converting discarded plastic products into useful plastic raw materials or products through a series of treatment processes. The main purpose of plastic recycling is to reduce the pollution of plastic waste to the environment and realize the recycling of resources. Therefore, plastic recycling not only contributes to environmental protection and resource conservation, but is also an important way to achieve sustainable development goals.

[0003] The main types of plastic recycling particles include recycled plastic particles and recycled plastic products. Recycled plastic particles are made from processed waste plastics. Common types include polypropylene recycled particles, polyethylene recycled particles and polyester recycled particles. When implementing plastic recycling work, the particles need to be screened, so a screening device is needed to complete this process. If only a screen is used for screening, accumulation and other phenomena are likely to occur, affecting the screening effect. Utility Model Content

[0004] The purpose of the present utility model is to provide a particle screening device for plastic recycling, so as to solve the problem proposed in the above background technology that when implementing plastic recycling work, it is necessary to screen the particles, so it is necessary to use a screening device to complete this relationship. However, if only a screen is used for screening, accumulation and the like are likely to occur, which affects the screening effect.

[0005] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure is hinged on the base plate, is fixed with a base plate, and an end of sliding panel withstands on the back of the interlocking structure to prevent the interlocking structure from being scratched.

[0006] As a further technical solution of the present invention, a sliding connection is formed between the chute and the slider, and the movable blocks are symmetrically distributed in two groups about the central axis of the screening box.

[0007] As a further technical solution of the present invention, the reserved grooves are symmetrically distributed about the central axis of the second screening plate, the top of the buffer spring is connected and assembled with the lower position of the second screening plate, and the bottom of the buffer spring is connected and assembled with the upper position of the movable block.

[0008] As a further technical solution of the present invention, the guide rails are symmetrically distributed about the central axis of the reserved groove, the guide blocks are symmetrically distributed about the central axis of the adjustment column, and a sliding guide is formed between the guide rails and the guide blocks.

[0009] As a further technical solution of the present invention, a feed port is installed at the top of the screening box, a discharge port is installed at the lower left side of the screening box, and electromagnetic valves are installed in the feed port and the discharge port.

[0010] As a further technical solution of the present invention, a slope plate is fixed to the bottom end of the interior of the screening box, an oblique groove is opened in the top of the slope plate, and an observation window is fixed at the lower position of the front end of the screening box.

[0011] As a further technical solution of the present invention, a guide block is embedded in the guide groove, a first screening plate is installed between the guide blocks, a sinking groove is opened in the top of the first screening plate, and sieve holes are evenly distributed in the bottom of the sinking groove.

[0012] As a further technical solution of the present invention, the guide blocks are symmetrically distributed about the central axis of the first screening plate, a sliding guide is formed between the guide blocks and the guide groove, a sealing plate is fixed to the front end surface of the first screening plate, a handle is fixed to the front end surface of the sealing plate, a slot is opened in the front end of the screening box, the length of the slot is less than the length of the sealing plate, and the length of the slot is greater than the length of the first screening plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the particle screening device for plastic recycling not only improves the screening capacity, but also improves the discharge capacity and replacement convenience of the particle screening device;

[0014] (1) By assembling the fixing sleeve on both sides of the inner wall of the screening box, and then opening the slide grooves on both sides of the screening box, and the slide grooves are embedded in the slider, and the movable block is fixed to the side position of the slider, after the working motor works, the cam disc is driven to rotate, and when the cam disc rotates to the lowest surface, the connecting rod falls in the fixing sleeve, and when it rotates to the highest surface, the connecting rod moves upward and uses the hammer head to hammer the movable block. At this time, when the movable block moves up and down, the second screening plate can be shaken under the compression and extension of the buffer spring, thereby better improving the overall screening capacity during the shaking process;

[0015] (2) By fixing the ramp plate at the bottom of the screening box and opening an oblique groove in the top of the ramp plate, based on the inclined distribution of the ramp plate, after the first screening plate and the second screening plate complete the screening work, the inclined design of the ramp plate allows the material to be discharged better at the discharge port, and an observation window is fixed on the front face of the screening box, so the observation window facilitates the observation ability during the discharge, thereby better improving the overall discharge capacity during the work process;

[0016] (3) The guide plates are fixed on both sides of the inner wall of the screening box, and guide grooves are opened in the guide plates. When assembling the first screening plate, the first screening plate is passed through the slots, and the guide blocks are slid along the guide grooves to form the assembly work. A sinking groove is opened above the first screening plate, and sieve holes are evenly distributed in the bottom of the sinking groove. Therefore, the first screening plate with sieve holes of different diameters can be selected for assembly and use according to needs, thereby better improving the overall replacement capacity during the work process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a front view structural diagram of the utility model;

[0019] Figure 3 This is a partial front cross-sectional structural diagram of the first screening plate of the present invention;

[0020] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0021] In the figure: 1. Screening box; 2. Feed inlet; 3. First screening plate; 4. Second screening plate; 5. Working motor; 6. Inclined plate; 7. Fixed bottom plate; 8. Oblique groove; 9. Discharge port; 10. Cam plate; 11. Fixed sleeve; 12. Closing plate; 13. Handle; 14. Observation window; 15. Sieve hole; 16. Guide plate; 17. Guide block; 18. Guide groove; 19. Sinking groove; 20. Reserved groove; 21. Guide rail; 22. Adjusting column; 23. Slide; 24. Slider; 25. Connecting rod; 26. Hammer head; 27. Movable block; 28. Buffer spring; 29. ​​Guide block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides an embodiment of a particle screening device for plastic recycling, comprising a screening box 1 and a fixed bottom plate 7. Working motors 5 are mounted on both sides of the screening box 1. The output end of the working motor 5 is connected to a cam plate 10. Fixed sleeves 11 are mounted on both sides of the inner wall of the screening box 1. A connecting rod 25 is inserted into the fixing sleeve 11. A hammer head 26 is fixed to the top of the connecting rod 25. Slide grooves 23 are opened on both sides of the inner wall of the screening box 1. Slide blocks 24 are embedded in the slide grooves 23. A movable block is fixed to the side of the slide block 24. 27. An adjusting column 22 is fixed to the top of the movable block 27, and guide blocks 29 are fixed at the upper positions on both sides of the adjusting column 22. A buffer spring 28 is assembled at the position between the outside of the adjusting column 22 and the movable block 27. A second screening plate 4 is assembled above the adjusting column 22, and reserved grooves 20 are opened at the lower positions on both sides of the second screening plate 4. Guide rails 21 are fixed on both sides of the inner wall of the reserved groove 20. Guide plates 16 are fixed at the upper positions on both sides of the inner wall of the screening box 1, and guide grooves 18 are opened in the guide plates 16.

[0024] A sliding connection is formed between the chute 23 and the slider 24 , and two groups of movable blocks 27 are symmetrically distributed about the central axis of the screening box 1 .

[0025] The reserved grooves 20 are symmetrically distributed about the central axis of the second screening plate 4 . The top of the buffer spring 28 is connected and assembled with the lower position of the second screening plate 4 , and the bottom of the buffer spring 28 is connected and assembled with the upper position of the movable block 27 .

[0026] The guide rails 21 are symmetrically distributed about the central axis of the reserved slot 20 , and the guide blocks 29 are symmetrically distributed about the central axis of the adjustment column 22 , forming a sliding guide between the guide rails 21 and the guide blocks 29 .

[0027] A feed port 2 is provided at the top of the screening box 1 , and a discharge port 9 is provided at the lower left side of the screening box 1 . Both the feed port 2 and the discharge port 9 are provided with electromagnetic valves.

[0028] A ramp plate 6 is fixed to the bottom end of the interior of the screening box 1 , an oblique groove 8 is provided in the top of the ramp plate 6 , and an observation window 14 is fixed at a lower position at the front end of the screening box 1 .

[0029] The guide groove 18 is embedded with a guide block 17 , and the first screening plate 3 is mounted between the guide blocks 17 . A sinking groove 19 is provided in the top of the first screening plate 3 , and sieve holes 15 are evenly distributed in the bottom of the sinking groove 19 .

[0030] The guide blocks 17 are symmetrically distributed about the central axis of the first screening plate 3. A sliding guide is formed between the guide blocks 17 and the guide grooves 18. A sealing plate 12 is fixed to the front end surface of the first screening plate 3. A handle 13 is fixed to the front end surface of the sealing plate 12. A slot is defined in the front end of the screening box 1. The length of the slot is less than the length of the sealing plate 12, but greater than the length of the first screening plate 3.

[0031] The screening work is further completed on the first screening plate 3 and the second screening plate 4. During normal operation, the first screening plate 3 is located above the second screening plate 4. The upper and lower positions of the first screening plate 3 and the second screening plate 4 can also be replaced according to needs.

[0032] Working principle: First, during operation, the material is fed at the position of the feed port 2, and then the first screening plate 3 is passed through the slot, and the guide block 17 is guided along the guide groove 18 to slide and guide to complete the assembly work. Therefore, the recycled plastic raw materials are first screened through the first screening plate 3, and then screened through the second screening plate 4. The working motor 5 is started to drive the cam disc 10 to rotate, and under the rotation of the cam disc 10, when it rotates to the lowest surface, the connecting rod 25 falls in the fixed sleeve 11, and when it rotates to the highest surface, the connecting rod 25 moves upward and uses the hammer head 26 to hammer the movable block 27. At this time, the movable block 27 moves up and down, and under the compression and extension of the buffer spring 28, the second screening plate 4 is shaken for screening. Therefore, after the material is screened, the inclined design of the ramp plate 6 is used to allow the material to be discharged at the position of the discharge port 9.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A particle screening device for plastic recycling, comprising a screening box (1) and a fixed bottom plate (7), characterized in that: The screening box (1) is equipped with working motors (5) on both sides, and the output end of the working motor (5) is connected to a cam plate (10). The inner wall of the screening box (1) is equipped with fixed sleeves (11), and a connecting rod (25) is inserted in the fixing sleeve (11). A hammer head (26) is fixed on the top of the connecting rod (25). Slide grooves (23) are opened on both sides of the inner wall of the screening box (1), and a slider (24) is embedded in the slide groove (23). A movable block (27) is fixed on the side of the slider (24), and an adjusting column (26) is fixed on the top of the movable block (27). 22), guide blocks (29) are fixed at upper positions on both sides of the adjusting column (22), a buffer spring (28) is installed at a position between the outside of the adjusting column (22) and the movable block (27), a second screening plate (4) is installed above the adjusting column (22), reserved grooves (20) are opened at lower positions on both sides of the second screening plate (4), guide rails (21) are fixed on both sides of the inner wall of the reserved groove (20), guide plates (16) are fixed at upper positions on both sides of the inner wall of the screening box (1), and guide grooves (18) are opened in the guide plates (16).

2. A particle screening device for plastic recycling according to claim 1, characterized in that: A sliding connection is formed between the chute (23) and the slider (24), and the movable blocks (27) are symmetrically distributed in two groups about the central axis of the screening box (1).

3. The particle screening device for plastic recycling according to claim 1, characterized in that: The reserved grooves (20) are symmetrically distributed about the central axis of the second screening plate (4); the top of the buffer spring (28) is connected and assembled with the lower position of the second screening plate (4); and the bottom of the buffer spring (28) is connected and assembled with the upper position of the movable block (27).

4. The particle screening device for plastic recycling according to claim 1, characterized in that: The guide rail (21) is symmetrically distributed about the central axis of the reserved groove (20), and the guide block (29) is symmetrically distributed about the central axis of the adjustment column (22), and a sliding guide is formed between the guide rail (21) and the guide block (29).

5. The particle screening device for plastic recycling according to claim 1, characterized in that: The top of the screening box (1) is equipped with a feed port (2), and the left side of the screening box (1) is equipped with a discharge port (9). Both the feed port (2) and the discharge port (9) are equipped with electromagnetic valves.

6. The particle screening device for plastic recycling according to claim 1, characterized in that: A slope plate (6) is fixed at the bottom end of the screening box (1), an oblique groove (8) is provided in the top of the slope plate (6), and an observation window (14) is fixed at the lower front end of the screening box (1).

7. The particle screening device for plastic recycling according to claim 1, characterized in that: A guide block (17) is embedded in the guide groove (18), a first screening plate (3) is assembled between the guide blocks (17), a sinking groove (19) is provided in the top of the first screening plate (3), and sieve holes (15) are evenly distributed in the bottom of the sinking groove (19).

8. The particle screening device for plastic recycling according to claim 7, characterized in that: The guide blocks (17) are symmetrically distributed about the central axis of the first screening plate (3), and a sliding guide is formed between the guide blocks (17) and the guide grooves (18). A sealing plate (12) is fixed to the front end surface of the first screening plate (3), and a handle (13) is fixed to the front end surface of the sealing plate (12). A slot is provided in the front end of the screening box (1), and the length of the slot is less than the length of the sealing plate (12), and the length of the slot is greater than the length of the first screening plate (3).

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