Plastic screening and recycling device

Abstract

The utility model relates to the technical field of plastic recycling, and particularly discloses a plastic screening and recycling device which comprises a discharging frame, a vibration motor, two sets of screening frames and screening plates arranged in the screening frames, the bottoms of the screening plates are connected with baffles in a sliding mode, and adjusting assemblies used for adjusting the baffles to slide are arranged on the screening frames. By arranging the sieve plate, the baffle, the fixing block, the threaded rod, the sliding piece and the limiting piece, when the threaded rod is rotated, the fixing block drives the baffle to translate in the guide direction of the sliding piece, meanwhile, the limiting piece ensures the rotation positioning accuracy of the threaded rod, and by adjusting the relative position of the baffle and the sieve plate, the hole diameters of the baffle and the sieve plate are staggered; by means of the design, accurate adjustment can be conducted according to the processing requirements of plastic particles with different particle sizes, the adaptability of the production process is guaranteed, and the production efficiency and practicability are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling technology, specifically a plastic screening and recycling device. Background Technology

[0002] Using recycled plastics as a partial raw material can typically reduce procurement costs compared to purchasing virgin plastic raw materials. This is especially true for some high-priced specialty or engineering plastics, where the economic value of recycling is even more significant, helping to improve economic efficiency. Screening is necessary during the recycling process; if used directly without screening, the uneven size of the plastic particles will lead to incomplete melting, causing large particles to not melt completely and small particles to overheat and degrade, affecting the stability of subsequent granulation or injection molding processes.

[0003] A screening device for plastic recycling, disclosed in patent publication number CN220903831U, includes a toothed chuck and a gear. First, a reciprocating cylinder drives a support to reciprocate linearly on the surface of a discharge pipe. Since the support can synchronously move the toothed chuck on its surface, the support, during movement, drives the gear to reciprocate. The gear's rotation drives the inner barrel to rotate synchronously via a shaft, causing the inner barrel to rotate synchronously with the plastic particles inside, performing initial screening through a first screening hole at the bottom of the inner barrel. As the inner barrel reciprocates, it causes a second protrusion to swing synchronously. The second protrusion, during its swing, presses against the first protrusion, causing the first protrusion to drive the screening plate to descend inside the outer barrel via a connecting seat. At this time, the connecting seat drives a traction unit to move synchronously on the surface of a guide rod, and the traction unit and guide rod compress a spring. The spring stores energy after being compressed. When the second protrusion detaches from the surface of the first protrusion, the spring, through its own elasticity, pushes the screening plate back to its original position, thus completing one descent and ascent process for secondary screening of the plastic particles.

[0004] The above-mentioned device requires changing the sieve plate with different aperture size when screening plastic particles of different sizes, which is cumbersome, impractical, and reduces production efficiency. In order to address the above problems, a plastic screening and recycling device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a plastic screening and recycling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A plastic screening and recycling device includes a discharge frame, a vibrating motor, two sets of screening frames and a screen plate disposed in the screening frames. The bottom of the screen plate is slidably connected to a baffle, and the screening frame is provided with an adjustment component for adjusting the sliding of the baffle.

[0008] The adjustment component includes several sets of fixing blocks, which are fixedly connected to the bottom of the baffle. The fixing blocks are threadedly connected to a threaded rod, which is rotatably connected to the screening frame. The screening frame is provided with a sliding component for guiding the sliding of the baffle, and a limiting component for positioning the rotation of the threaded rod is provided on one side of the screening frame.

[0009] Two sets of screening frames are sequentially arranged on the top of the discharge frame. A vibrating motor for vibrating and screening plastic granules is installed at the bottom of the discharge frame. Two sets of support plates are fixed on both sides of the two sets of screening frames and the discharge frame. Support components for supporting the vibration of the two sets of screening frames and the discharge frame are provided on the support plates.

[0010] In one alternative embodiment: the sliding component includes guide blocks and guide grooves, two sets of guide blocks are fixedly connected to both sides of the baffle, two sets of guide grooves are respectively opened on both sides of the inner wall of the screening frame, the guide blocks are slidably connected in the guide grooves, and the cross-sections of the guide grooves and guide blocks are both L-shaped.

[0011] In one alternative embodiment: the limiting component includes an extension rod and a limiting plate. The extension rod is fixedly connected to one end of the threaded rod extending to the outside. The limiting plate is fixedly connected to the extension rod. A fixing frame is fixedly connected to one side of the screening frame. The extension rod is rotatably connected to the fixing frame. A limiting hole is opened on one side of the fixing frame. A plurality of positioning holes corresponding to the limiting holes are opened on the limiting plate. A set of positioning bolts is threadedly connected to a set of positioning holes and a set of limiting holes.

[0012] In one alternative: the support assembly includes a spring and a base, one end of the spring is connected to the bottom of the support plate, the base is disposed at the bottom of the support plate, and the end of the spring away from the support plate is connected to the base.

[0013] In one alternative: a first discharge pipe is installed at the bottom of the screening box.

[0014] In one alternative: the discharge port of the discharge frame is connected to the second discharge pipe.

[0015] In one alternative: a fixed block is slidably connected within the protective block, and the threaded rod is located within the protective block.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention incorporates a sieve plate, a baffle, a fixed block, a threaded rod, a sliding component, and a limiting component. When the threaded rod is rotated, the fixed block drives the baffle to move along the guiding direction of the sliding component. Simultaneously, the limiting component ensures the rotational positioning accuracy of the threaded rod. By adjusting the relative position of the baffle and the sieve plate, their apertures are misaligned, thereby adjusting the effective aperture size of the sieve plate. This design allows for precise adjustment according to the processing requirements of plastic granules of different sizes, ensuring adaptability to the production process and significantly improving production efficiency and practicality.

[0018] By setting up a support component, this utility model can support the two sets of screening frames and one set of discharge frames during vibration when the vibration motor is working. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure where the sieve plate is located in this utility model.

[0021] Figure 3 This is a structural diagram of the location of the baffle in this utility model.

[0022] Figure 4 This is a schematic diagram of the structure where the fixing block is located in this utility model.

[0023] In the diagram: 11. Screening frame; 12. Screen plate; 13. First discharge pipe; 14. Discharge frame; 15. Second discharge pipe; 16. Baffle; 17. Fixing frame; 18. Fixing block; 19. Threaded rod; 20. Extension rod; 21. Positioning hole; 22. Limiting plate; 23. Positioning bolt; 24. Limiting hole; 25. Guide groove; 26. Guide block; 27. Vibration motor; 28. Support plate; 29. ​​Spring; 30. Base; 31. Protective block. Detailed Implementation

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 In this embodiment, a plastic screening and recycling device includes a discharge frame 14, a vibration motor 27, two sets of screening frames 11 and a sieve plate 12 disposed in the screening frame 11. The bottom of the sieve plate 12 is slidably connected to a baffle 16, and the screening frame 11 is provided with an adjustment component for adjusting the baffle 16 to slide.

[0027] The adjustment assembly includes several sets of fixing blocks 18, which are fixedly connected to the bottom of the baffle 16. The fixing blocks 18 are threadedly connected to a threaded rod 19, which is rotatably connected to the screening frame 11. The screening frame 11 is provided with a sliding member for guiding the sliding of the baffle 16, and a limiting member for positioning the rotation of the threaded rod 19 is provided on one side of the screening frame 11.

[0028] Two sets of screening frames 11 are sequentially arranged on the top of the discharge frame 14. A vibration motor 27 for vibrating and screening plastic particles is installed at the bottom of the discharge frame 14. Two sets of support plates 28 are fixed on both sides of the two sets of screening frames 11 and the discharge frame 14. Support components for supporting the vibration of the two sets of screening frames 11 and the discharge frame 14 are provided on the support plates 28.

[0029] The sliding component includes guide blocks 26 and guide grooves 25. Two sets of guide blocks 26 are fixedly connected to both sides of the baffle 16, and two sets of guide grooves 25 are respectively opened on both sides of the inner wall of the screening frame 11. The guide blocks 26 are slidably connected in the guide grooves 25. The cross-sections of the guide grooves 25 and the guide blocks 26 are both L-shaped. The baffle 16 drives the guide blocks 26 to slide in the guide grooves 25, which can guide and limit the sliding of the baffle 16.

[0030] The limiting component includes an extension rod 20 and a limiting plate 22. The extension rod 20 is fixedly connected to one end of the threaded rod 19 extending to the outside. The limiting plate 22 is fixedly connected to the extension rod 20. A fixing frame 17 is fixedly connected to one side of the screening frame 11. The extension rod 20 is rotatably connected to the fixing frame 17. A limiting hole 24 is opened on one side of the fixing frame 17. Several sets of positioning holes 21 corresponding to the limiting holes 24 are opened on the limiting plate 22. A set of positioning bolts 23 are threadedly connected to a set of positioning holes 21 and limiting holes 24. The positioning bolts 23 are disassembled using tools to disengage them from the positioning holes 21 and limiting holes 24. The operator holds the extension rod 20 and rotates it. The extension rod 20 drives the threaded rod 19 to rotate, adjusting the baffle 16. After adjustment, the positioning bolts 23 are inserted into a set of positioning holes 21 and limiting holes 24 for fixation to prevent the baffle 16 from sliding during vibration screening.

[0031] The support assembly includes a spring 29 and a base 30. One end of the spring 29 is connected to the bottom of the support plate 28, and the base 30 is located at the bottom of the support plate 28. The end of the spring 29 away from the support plate 28 is connected to the base 30. By setting the spring 29 and the base 30, the vibration motor 27 can support the screening frame 11 and the discharge frame 14 when it is working.

[0032] The bottom of the screening frame 11 is equipped with a first discharge pipe 13; the discharge port of the discharge frame 14 is connected to the second discharge pipe 15. By setting the first discharge pipe 13 and the second discharge pipe 15, plastic granules of different specifications can be discharged.

[0033] The protective block 31 is slidably connected to the fixed block 18, and the threaded rod 19 is located inside the protective block 31. By setting the protective block 31, the threaded rod 19 can be protected to prevent plastic powder from affecting the threaded rod 19 during the screening process. The opening of the protective block 31 is misaligned with the holes on the baffle 16 and the sieve plate 12 to prevent plastic powder from entering the protective block 31.

[0034] By setting a sliding connection baffle 16 at the bottom of the sieve plate 12, the sieve plate 12 and the baffle 16 are in close contact. If there is dust on the baffle 16 during the adjustment process, the dust will be shaken off when the screening frame 11 shakes, reducing the impact on the sliding between the sieve plate 12 and the baffle 16.

[0035] The working principle of this utility model is as follows: During use, the baffle 16 can be adjusted according to the size of the plastic particles to be screened. First, the positioning bolt 23 is disassembled using a tool, causing it to disengage from the positioning hole 21 and the limiting hole 24. The operator then holds the extension rod 20 and rotates it. The extension rod 20 drives the threaded rod 19 to rotate. As the threaded rod 19 rotates, the fixing block 18 moves on the threaded rod 19, thereby moving the baffle 16. The baffle 16 drives the guide block 26 to slide within the guide groove 25. The aperture of the baffle 16 is aligned with the screen plate 1. The aperture size on the screen plate 12 is misaligned, thereby reducing the aperture size on the screen plate 12. Then, the positioning bolt 23 is inserted into a set of positioning holes 21 and limiting holes 24 for fixation, preventing the baffle 16 from sliding during the vibration screening process. The baffle 16 can be adjusted according to the needs of different plastic particle sizes to improve production efficiency and practicality. The vibration motor 27 works to make the two sets of screening frames 11 and one set of discharge frames 14 shake to screen the plastic particles. Plastic particles of different sizes are discharged through two sets of first discharge pipes 13 and one set of second discharge pipes 15.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A plastic screening and recycling device, comprising a discharge frame (14), a vibration motor (27), two sets of screening frames (11), and a sieve plate (12) disposed within the screening frames (11), characterized in that: The bottom of the sieve plate (12) is slidably connected to the baffle (16), and the sieve frame (11) is provided with an adjustment component for adjusting the baffle (16) to slide. The adjustment assembly includes several sets of fixing blocks (18), which are fixedly connected to the bottom of the baffle (16). The several sets of fixing blocks (18) are threadedly connected to a set of threaded rods (19). The threaded rods (19) are rotatably connected inside the screening frame (11). The screening frame (11) is provided with a sliding member for guiding the sliding of the baffle (16). A limiting member for positioning the rotation of the threaded rods (19) is provided on one side of the screening frame (11). Two sets of screening frames (11) are arranged sequentially on the top of the discharge frame (14). A vibrating motor (27) for vibrating screening of plastic particles is installed at the bottom of the discharge frame (14). Two sets of support plates (28) are fixed on both sides of the two sets of screening frames (11) and the discharge frame (14). Support components for supporting the vibration of the two sets of screening frames (11) and the discharge frame (14) are provided on the support plates (28).

2. The plastic screening and recycling device according to claim 1, characterized in that: The sliding component includes guide blocks (26) and guide grooves (25). Two sets of guide blocks (26) are fixedly connected to both sides of the baffle (16). Two sets of guide grooves (25) are respectively opened on both sides of the inner wall of the screening frame (11). The guide blocks (26) are slidably connected in the guide grooves (25). The cross-sections of the guide grooves (25) and the guide blocks (26) are both L-shaped.

3. The plastic screening and recycling device according to claim 1, characterized in that: The limiting component includes an extension rod (20) and a limiting plate (22). The extension rod (20) is fixedly connected to one end of the threaded rod (19) extending to the outside. The limiting plate (22) is fixedly connected to the extension rod (20). A fixing frame (17) is fixedly connected to one side of the screening frame (11). The extension rod (20) is rotatably connected to the fixing frame (17). A limiting hole (24) is opened on one side of the fixing frame (17). Several sets of positioning holes (21) corresponding to the limiting holes (24) are opened on the limiting plate (22). A set of positioning bolts (23) are threadedly connected to a set of positioning holes (21) and limiting holes (24).

4. The plastic screening and recycling device according to claim 1, characterized in that: The support assembly includes a spring (29) and a base (30). One end of the spring (29) is connected to the bottom of the support plate (28), and the base (30) is disposed at the bottom of the support plate (28). The end of the spring (29) away from the support plate (28) is connected to the base (30).

5. A plastic screening and recycling device according to claim 1, characterized in that: The bottom of the screening box (11) is equipped with a first discharge pipe (13).

6. The plastic screening and recycling device according to claim 1, characterized in that: The discharge port of the discharge frame (14) is connected to the second discharge pipe (15).

7. The plastic screening and recycling device according to claim 1, characterized in that: Protective blocks (31) are fixedly connected to both sides of the inner wall of the screening box (11), and a fixed block (18) is slidably connected inside the protective block (31). The threaded rod (19) is located inside the protective block (31).

Images