A plastic pellet screening device
By introducing a combination structure of first clamp, clamp, and docking groove into the plastic pellet screening equipment, the equipment can be easily disassembled, solving the problem of the existing equipment being difficult to disassemble and improving maintenance efficiency.
Patent Information
- Application Number
- CN202522437953.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-18
AI Technical Summary
Existing plastic pellet screening equipment is designed as an integrated unit, which makes it difficult to disassemble when damaged, thus affecting maintenance work.
The combination structure of the first clamp, clamp rod, docking groove, screw, threaded groove, second clamp, spring, extension groove, through hole, nut and bolt makes the screening equipment easy to disassemble and easy to maintain.
This technology enables convenient disassembly of the plastic pellet screening equipment, solves maintenance problems, and improves equipment maintenance efficiency.
Smart Images

Figure CN224940325U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic particle screening technology, specifically to a plastic particle screening device. Background Technology
[0002] Plastic granules are plastic raw materials existing in granular form. They are classified into three categories according to their properties: general-purpose plastics, engineering plastics, and specialty plastics. General-purpose plastics include common types such as polypropylene and polyethylene. Microplastics specifically refer to man-made polymer granules with a particle size of less than 5 mm, including industrial product additives and plastic degradation products. This material is processed into daily necessities, building components, agricultural films, and other products through injection molding and other processes. A brief introduction to PP recycled plastic: Polypropylene (PP) – When uncolored, it is translucent and waxy, lighter than polyethylene, with better transparency, and more rigid. It is mainly used for basins, buckets, furniture, films, woven bags, packing straps, bottle caps, car bumpers, etc. A brief introduction to PE recycled plastic: Polyethylene (PE) – When uncolored, it is milky white and translucent, waxy; it feels slippery to the touch, soft yet tough, and can be slightly stretched. Generally, low-density polyethylene is softer and has better transparency, while high-density polyethylene is harder. It is mainly used for mulch films, tote bags, water pipes, and oil drums.
[0003] PS is polystyrene plastic, which is easy to color and has good transparency. It is often used to make lampshades, toothbrush handles, toys, and electrical components. It is resistant to acid and alkali corrosion, but is easily soluble in organic solvents such as chloroform, dichloroethylene, and banana oil.
[0004] PVC is polyvinyl chloride plastic, which is brightly colored, corrosion-resistant, and durable. However, due to the addition of some toxic auxiliary materials such as plasticizers and anti-aging agents during the manufacturing process, its products are generally not used for storing food and medicine.
[0005] ABS is a plastic polymerized from acrylonitrile, butadiene, and styrene. It has eye-catching colors, is heat-resistant, strong, and its outer surface can be plated with chromium, nickel, and other metal films. It can be used to make piano keys, buttons, knife holders, television casings, umbrella handles, etc.
[0006] PA is nylon plastic, characterized by its toughness, strength, and wear resistance. It is commonly used in the production of combs, toothbrushes, clothes hooks, fan ribs, mesh bag ropes, and fruit packaging bags. It is non-toxic, but should not be in prolonged contact with acids or alkalis. In daily life, recycled granules can be used to manufacture various plastic bags, buckets, basins, toys, furniture, stationery, and other household items and plastic products. In the clothing industry, recycled granules can be used to manufacture clothing, ties, buttons, and zippers. In the building materials industry, recycled granules can be used to manufacture various building components, construction tools, plastic doors and windows, and mortar buckets. In agriculture, recycled granules can be used to make agricultural films, water pipes, agricultural machinery, fertilizer packaging bags, and cement packaging bags. In the machinery industry, recycled granules, after special formulation, can be used to manufacture machine parts: various types of bearings, gears, cams, rotating parts, sealing rings, various blades, and various water pump impellers. In the chemical industry, recycled granules can be used to make reaction vessels, pipes, containers, pumps, and valves, and are applied in chemical production sites where corrosion and wear are a challenge. Recycled plastic granules have a wide range of applications. In daily life, recycled granules can be used to manufacture various plastic bags, buckets, basins, toys, furniture, stationery, and other household items and plastic products. In the clothing industry, they can be used to manufacture clothing, ties, buttons, and zippers. In building materials, recycled plastic granules are used to produce wood-plastic composite profiles, which are used to manufacture various building components and plastic doors and windows. In the chemical industry, they can be used to make reaction vessels, pipes, containers, pumps, and valves, and are used in chemical production sites where corrosion and wear are a concern. In agriculture, they can be used to make agricultural films, water pipes, agricultural machinery, fertilizer packaging bags, and cement packaging bags. Furthermore, recycled granules are widely used in the electrical and telecommunications industries. Plastic granule production requires screening equipment for particle selection. Existing plastic granule screening equipment is an integrated design, which, when damaged, is difficult to disassemble, thus hindering maintenance. Utility Model Content
[0007] The purpose of this invention is to provide a plastic granule screening device that solves the problem that existing plastic granule screening devices are integrated designs, making them difficult to disassemble and thus affecting maintenance when damaged.
[0008] Technical solution To achieve the above objectives, this utility model provides the following technical solution: a plastic granule screening device, comprising a vibrating base, a screening box mounted on top of the vibrating base, a filter screen fixedly connected inside the screening box, a discharge hole communicating with the interior of the screening box on the right side, a guide tube fixedly connected to the right side of the screening box corresponding to the discharge hole, a first clamping member fixedly connected to the left side of the screening box, an opening communicating with the right side on the left side of the first clamping member, a threaded groove on the left side of the vibrating base, a screw threadedly connected between the threaded groove and the opening, and a second clamping member fixedly connected to the right side of the screening box, the second clamping member having an opening on the right side... A through hole communicating with the left side is provided. An extension groove is provided on the right side of the vibrating seat. A spring is fixedly connected to the inner wall of the left side of the extension groove. A bolt is fixedly connected to the right end of the spring. The end of the bolt away from the spring passes through the through hole and extends to the right side of the second clamp. A nut is threaded on the surface of the bolt. The screw is unscrewed from the inside of the thread groove, and then the nut is unscrewed from the surface of the bolt. The bolt is pushed into the inside of the extension groove using a tool. Then the screening box is lifted upward, causing the screening box to separate the second clamp from the surface of the vibrating seat, and the first clamp from the surface of the vibrating seat. At the same time, the clamping rod is pulled out from the inside of the docking groove, thereby separating the vibrating seat and the screening box from each other.
[0009] Furthermore, the first locking element is located on the left side surface of the vibration seat.
[0010] Furthermore, the top of the vibration seat is provided with a docking groove, and a locking rod is engaged inside the docking groove.
[0011] Furthermore, the second locking element is located on the right side surface of the vibration seat and engages.
[0012] Furthermore, the surface of the bolt is movably connected to the interior of the extension groove.
[0013] Furthermore, the top end of the lever is fixedly connected to the inner wall of the first clamping component.
[0014] Furthermore, the inner bottom wall of the screening box is provided with an arc-shaped guide seat.
[0015] This utility model provides a plastic granule screening device. It has the following beneficial effects: This plastic granule screening equipment, through the combination of a first clamp, clamping rod, docking groove, opening, screw, threaded groove, second clamp, spring, extension groove, through hole, nut and bolt, makes it easy to disassemble the screening equipment, thus providing convenience for maintenance work. It solves the problem that existing plastic granule screening equipment is an integrated design, which is difficult to disassemble when damaged, thus affecting maintenance work. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of the local structure at point A; Figure 3 This utility model Figure 1 Enlarged view of the local structure at point B in the middle.
[0017] Among them, 1 is the vibrating seat, 2 is the screening box, 3 is the arc-shaped guide seat, 4 is the filter screen, 5 is the discharge hole, 6 is the guide tube, 7 is the first clamping piece, 8 is the clamping rod, 9 is the docking groove, 10 is the opening, 11 is the screw, 12 is the threaded groove, 13 is the second clamping piece, 14 is the spring, 15 is the extension groove, 16 is the through hole, 17 is the nut, and 18 is the bolt. Detailed Implementation
[0018] 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.
[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0021] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] like Figure 1-3 As shown in the first embodiment of this utility model, a plastic particle screening device is provided, including a vibrating base 1, a screening box 2 attached to the top of the vibrating base 1, an arc-shaped guide seat 3 provided on the inner bottom wall of the screening box 2, a filter screen 4 fixedly connected inside the screening box 2, a discharge hole 5 communicating with the inside of the screening box 2 on the right side, a guide tube 6 fixedly connected to the right side of the screening box 2 corresponding to the position of the discharge hole 5, a docking groove 9 provided on the top of the vibrating base 1, a locking rod 8 snapped into the inside of the docking groove 9, the top end of the locking rod 8 fixedly connected to the inner wall of the first locking member 7, a first locking member 7 fixedly connected to the left side of the screening box 2, the first locking member 7 snapped into the left surface of the vibrating base 1, an opening 10 communicating with the right side provided on the left side of the first locking member 7, a threaded groove 12 provided on the left side of the vibrating base 1, and a screw 11 threadedly connected between the threaded groove 12 and the opening 10.
[0023] In the second embodiment of this utility model, a second clip 13 is fixedly connected to the right side of the screening box 2. The second clip 13 is located on the right side surface of the vibrating seat 1 and is snapped in place. A through hole 16 communicating with the left side is opened on the right side of the second clip 13. An extension groove 15 is opened on the right side of the vibrating seat 1. A spring 14 is fixedly connected to the left inner wall of the extension groove 15. A bolt 18 is fixedly connected to the right end of the spring 14. The surface of the bolt 18 is movably connected to the inside of the extension groove 15. The end of the bolt 18 away from the spring 14 passes through the through hole 16 and extends to the right side of the second clip 13. A nut 17 is threadedly connected to the surface of the bolt 18.
[0024] Working principle: Unscrew the screw 11 from the inside of the threaded groove 12, then unscrew the nut 17 from the surface of the bolt 18, use a tool to push the bolt 18 into the inside of the extension groove 15, then lift the screening box 2 upwards, so that the screening box 2 drives the second clamp 13 to separate from the surface of the vibrating seat 1, drives the first clamp 7 to separate from the surface of the vibrating seat 1, and at the same time drives the clamp 8 to be pulled out from the inside of the docking groove 9, thereby separating the vibrating seat 1 and the screening box 2 from each other.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A plastic granule screening device, comprising a vibrating base (1), characterized in that: A screening box (2) is attached to the top of the vibrating seat (1). A filter screen (4) is fixedly connected inside the screening box (2). A discharge hole (5) communicating with the inside of the screening box (2) is opened on the right side of the screening box (2). A conduit (6) is fixedly connected to the right side of the screening box (2) and corresponding to the position of the discharge hole (5). A first clamp (7) is fixedly connected to the left side of the screening box (2). An opening (10) communicating with the right side is opened on the left side of the first clamp (7). A threaded groove (12) is opened on the left side of the vibrating seat (1). The threaded groove (12) and the opening (10) are connected. A screw (11) is threaded on the right side of the screening box (2). A second clip (13) is fixedly connected to the right side of the second clip (13), which has a through hole (16) that communicates with the left side. An extension groove (15) is provided on the right side of the vibration seat (1). A spring (14) is fixedly connected to the inner wall of the left side of the extension groove (15). A bolt (18) is fixedly connected to the right end of the spring (14). The end of the bolt (18) away from the spring (14) passes through the through hole (16) and extends to the right side of the second clip (13). A nut (17) is threaded on the surface of the bolt (18).
2. The plastic granule screening equipment according to claim 1, characterized in that: The first clip (7) is located on the left side surface of the vibration seat (1) and is engaged.
3. The plastic granule screening equipment according to claim 1, characterized in that: The top of the vibration seat (1) is provided with a docking groove (9), and a locking rod (8) is engaged inside the docking groove (9).
4. The plastic granule screening equipment according to claim 1, characterized in that: The second clip (13) is located on the right side surface of the vibration seat (1) and is engaged.
5. The plastic granule screening equipment according to claim 1, characterized in that: The surface of the bolt (18) is movably connected to the interior of the extension groove (15).
6. The plastic granule screening equipment according to claim 3, characterized in that: The top of the lever (8) is fixedly connected to the inner wall of the first clamp (7).
7. The plastic granule screening equipment according to claim 1, characterized in that: The inner bottom wall of the screening box (2) is provided with an arc-shaped guide seat (3).
