Automatic sorting device for plastic recycled materials
By designing an automatic sorting device, which utilizes a rotating electric cylinder to drive the sorting mesh and a multi-stage sorting mesh, the problems of low sorting efficiency and insufficient precision of plastic recycled materials in the existing technology are solved, achieving efficient and accurate sorting of plastic recycled materials, and adapting to plastic recycled materials of different sizes and types.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING BINLIN RUBBER & PLASTIC PRODUCTS CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-19
AI Technical Summary
Existing plastic recycling sorting technologies suffer from low automation, insufficient sorting efficiency and precision, and difficulty in adapting to different types, shapes and sizes of plastic recycling materials, resulting in unsatisfactory sorting effects and high recycling costs.
An automatic sorting device was designed, comprising components such as a base, sliding seat, mounting frame, sorting seat, rotating electric cylinder, frame, sorting net, and collection box. The rotating electric cylinder drives the sorting net to rotate, and combined with a multi-stage sorting net and spring reset mechanism, the automatic sorting of plastic recycled materials is realized.
It improves the sorting efficiency and accuracy of recycled plastic materials, reduces manual intervention, expands the application range of the equipment, and reduces the difficulty of operation and recycling costs.
Smart Images
Figure CN224255820U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic recycling technology, specifically to an automatic sorting device for recycled plastic materials. Background Technology
[0002] In the field of plastic recycling, with increasing environmental awareness and rising demand for resource reuse, the importance of plastic recycling technology is becoming increasingly prominent. Efficient recycling and sorting of plastic waste is a key link in achieving resource recycling. However, existing plastic recycling sorting technologies have many shortcomings, especially in terms of automation and sorting efficiency. Traditional manual sorting methods are not only labor-intensive but also inefficient, making it difficult to meet the needs of large-scale recycling. Meanwhile, some existing automatic sorting equipment has complex structures and cumbersome operations, and its sorting accuracy is limited by equipment design and technical level, resulting in unsatisfactory sorting effects and easy mixing of materials, affecting the quality of subsequent processing. Furthermore, existing equipment has poor adaptability when handling different types, shapes, and sizes of plastic recycling materials, often requiring additional pretreatment steps, increasing recycling costs and time consumption. Therefore, developing a plastic recycling device that can achieve efficient, accurate, and automated sorting has become an urgent technical challenge. This utility model addresses the above problems by proposing an innovative automatic sorting device for plastic recycling materials, aiming to improve sorting efficiency and accuracy, reduce manual intervention, and optimize the overall plastic recycling process. Utility Model Content
[0003] This utility model addresses the problems of low sorting efficiency, excessive manual intervention, and inconvenient operation in existing plastic recycling sorting devices. Therefore, this utility model adopts the following technical solution:
[0004] This utility model provides an automatic sorting device for recycled plastic materials, including core components such as a base, sliding seat, mounting frame, sorting seat, feeding bin, rotary cylinder, frame, sorting net, receiving box, and limiting mechanism, wherein:
[0005] The base serves as the supporting structure for the entire device, and its top is equipped with a slide rail. The sliding seat is slidably connected to the base via the slide rail. An end plate is welded to one end of the sliding seat, and a handle is provided on the top of the end plate for manually pulling the sliding seat to achieve horizontal movement. Symmetrically arranged grooves are formed on the sliding seat, and the inner wall of the groove is adapted to the horizontal plate. The horizontal plate is slidably connected to the fixed seat via a sliding groove, and a spring is fixedly connected between the horizontal plate and the top wall of the sliding groove to form an elastic reset mechanism.
[0006] Furthermore, the mounting frame is fixed to the middle of the base, and the top of the mounting frame is bolted to an inclined sorting seat. The sorting seat is a hollow structure with an opening at the top, one end of which is fixedly connected to a feed hopper. The top of the feed hopper has a feed inlet for feeding in the recycled plastic material to be sorted. The inclination angle of the sorting seat is designed to be between 15° and 30° to ensure that the material slides along the inner wall of the sorting seat under the action of gravity, avoiding accumulation.
[0007] Specifically, three arrayed rotary electric cylinders are rotatably mounted on the mounting frame, with the output ends of the cylinders fixedly connected to rotating rods via couplings. The ends of the rotating rods are movably connected to a frame via pins, and the frame is rotatably mounted on a sorting seat via bearings, with a sorting screen fixedly connected thereto. The aperture of the sorting screen is designed in different specifications according to sorting requirements; for example, the aperture of the first-stage sorting screen is 10mm, the second-stage screen is 5mm, and the third-stage screen is 2mm, thereby achieving the grading and screening of plastic recycling materials of different sizes.
[0008] Furthermore, three collection boxes are placed on the sliding seat, each corresponding to a sorting mesh of different specifications, for collecting the sorted recycled plastic material. A limit plate is fixed to one end of the base with bolts. When the limit plate contacts the end face of the sliding seat, it restricts the maximum range of movement of the sliding seat and prevents the sliding seat from detaching from the base.
[0009] Specifically, the spring installed between the cross plate and the top wall of the slide groove has a specific elastic coefficient, and its compression amount matches the moving distance of the sliding seat. When the sliding seat is pulled, the cross plate slides along the slide groove and compresses the spring; when the external force disappears, the spring returns to its original state, pushing the cross plate back to its original position, thereby driving the sliding seat back to its initial position.
[0010] The working process of this utility model is as follows:
[0011] S1. The plastic recycling material to be sorted is fed into the feed hopper through the feed inlet and enters the sorting unit.
[0012] S2. The rotary electric cylinder is started, driving the rotating rod to rotate. The rotating rod drives the frame and the sorting screen to rotate synchronously via a pin. The rotation speed of the sorting screen is determined by the rotation speed of the rotary electric cylinder, which is usually set to 10 to 30 revolutions per minute to ensure uniform distribution of materials on the sorting screen.
[0013] S3. During the rotation of the sorting screen, plastic recycling materials of different sizes are screened step by step through different apertures of the sorting screen. Larger materials stay on the first-stage sorting screen, medium-sized materials stay on the second-stage sorting screen after passing through the first-stage sorting screen, and smaller materials stay on the third-stage sorting screen after passing through the first two-stage sorting screen.
[0014] S4. The sorted materials fall into three receiving boxes on the sliding seat. The user pulls the handle on the end plate to pull the sliding seat along the slide rail and remove the sorted materials.
[0015] S5. When the sliding block is pushed back to its initial position, the cross plate resets under the action of the spring, ensuring precise positioning of the sliding block. The design of the limit plate further prevents excessive movement of the sliding block and improves the stability of the device operation.
[0016] The present invention achieves the following innovative points through the above technical solution:
[0017] The output end of the rotary electric cylinder is directly connected to the rotating rod via a coupling, eliminating intermediate links in traditional transmission mechanisms and improving transmission efficiency. The aperture design of the sorting mesh is based on actual sorting requirements; by replacing the mesh with different specifications, it can meet the application needs of various sorting scenarios. The combination of the sliding seat and spring reset mechanism not only simplifies the operation process but also improves the automation level of the device. The limit plate effectively solves the problem of potential sliding seat offset during operation, ensuring stable and reliable device operation.
[0018] The technical advantages of this invention are as follows: By driving the sorting screen to rotate using a rotary electric cylinder, the recycled plastic material can be automatically sorted within the sorting seat, reducing manual intervention and improving sorting efficiency. The design of the sliding seat and spring reset mechanism makes the operation of the device more convenient, while the introduction of the limit plate further enhances the operational stability of the device. The multi-stage sorting function meets the sorting needs of recycled plastic materials of different sizes or types, expanding the application range of the device. The overall structural design is reasonable, the connection relationship between each component is clear, facilitating manufacturing and maintenance, and making it suitable for the field of plastic recycling, possessing significant technical advantages and broad application prospects.
[0019] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a front view of the three-dimensional structure of this utility model;
[0022] Figure 2This is an enlarged view of section A of the present invention;
[0023] Figure 3 This is a schematic diagram from another perspective of the present invention;
[0024] Figure 4 This is a third-view schematic diagram of the present invention;
[0025] Figure 5 This is a schematic diagram of the fourth perspective of this utility model.
[0026] Numbering on the map:
[0027] 1. Base; 2. Sliding seat; 21. Groove; 3. End plate; 4. Mounting frame; 5. Sorting seat; 6. Feed bin; 7. Feed inlet; 8. Partition; 9. Horizontal plate; 10. Slide groove; 11. Spring; 12. Fixed seat; 13. Receiving box; 14. Frame; 15. Sorting mesh; 16. Limiting plate; 17. Rotating electric cylinder; 18. Rotating rod. Detailed Implementation
[0028] This utility model provides an automatic sorting device for recycled plastic materials, combined with Figures 1 to 5 As shown, the core components of this device include a base 1, a sliding seat 2, a mounting frame 4, a sorting seat 5, a feeding bin 6, a rotating electric cylinder 17, a frame 14, a sorting screen 15, a receiving box 13, and a limiting plate 16. The specific implementation method is described in detail below, and the connection relationship and operating principle of each component are explained one by one with reference to the reference numerals in the accompanying drawings.
[0029] The base 1, serving as the supporting structure for the entire device, is made of high-strength steel to ensure the overall stability of the device. A slide rail is installed on the top of the base 1, through which the sliding seat 2 is horizontally slidably connected to the base 1. An end plate 3 is welded to one end of the sliding seat 2, and a handle is provided on the top of the end plate 3 for manually pulling the sliding seat 2 to achieve horizontal movement. Symmetrically arranged grooves 21 are formed on the sliding seat 2, and the inner wall of the grooves 21 is adapted to the horizontal plate 9. The horizontal plate 9 is slidably connected to the fixed seat 12 via a sliding groove 10, and a spring 11 is fixedly connected between the horizontal plate 9 and the top wall of the sliding groove 10. The spring 11 is designed with a specific elastic coefficient, and its compression is matched to the moving distance of the sliding seat 2. When the sliding seat 2 is pulled, the horizontal plate 9 slides along the sliding groove 10 and compresses the spring 11; when the external force disappears, the spring 11 returns to its original state, pushing the horizontal plate 9 back to its original position, thereby driving the sliding seat 2 back to its initial position. This design simplifies the operation process and improves the automation level of the device.
[0030] Mounting frame 4 is fixed to the middle of base 1 using bolts to ensure its sturdiness. The top of mounting frame 4 is bolted to a sorting seat 5, which is inclined and has an opening at the top. One end of the sorting seat 5 is fixedly connected to a feed hopper 6, the top of which has a feed inlet 7 for feeding in recycled plastic material to be sorted. The inclination angle of the sorting seat 5 is designed to be between 15° and 30° to ensure that the material slides along the inner wall of the sorting seat 5 under gravity, avoiding accumulation. Three arrayed rotary electric cylinders 17 are rotatably mounted on mounting frame 4. The output end of the rotary electric cylinders 17 is fixedly connected to a rotating rod 18 via a coupling. The end of the rotating rod 18 is movably connected to a frame 14 via a pin. The frame 14 is rotatably mounted on the sorting seat 5 via bearings and is fixedly connected to a sorting mesh 15. The aperture of the sorting mesh 15 is designed to be different specifications according to the sorting requirements. For example, the aperture of the first-stage sorting mesh is 10mm, the aperture of the second-stage sorting mesh is 5mm, and the aperture of the third-stage sorting mesh is 2mm, thereby realizing the grading and screening of plastic recycling materials of different sizes.
[0031] Three collection boxes 13 are placed on the sliding seat 2, each corresponding to a different size of sorting mesh 15, for collecting sorted recycled plastic material. A limit plate 16 is bolted to one end of the base 1. When the limit plate 16 contacts the end face of the sliding seat 2, it restricts the maximum range of movement of the sliding seat 2, preventing it from detaching from the base 1. The design of the limit plate 16 effectively solves the problem of potential displacement of the sliding seat 2 during operation, ensuring stable and reliable operation of the device.
[0032] The working process of this utility model is as follows: S1. The plastic recycling material to be sorted is fed into the feeding bin 6 through the feeding port 7 and enters the sorting seat 5. S2. The rotary electric cylinder 17 is started, driving the rotating rod 18 to rotate. The rotating rod 18 drives the frame 14 and the sorting screen 15 to rotate synchronously through the pin shaft. The rotation speed of the sorting screen 15 is determined by the rotation speed of the rotary electric cylinder 17, which is usually set to 10 to 30 revolutions per minute to ensure the uniform distribution of materials on the sorting screen 15. S3. During the rotation of the sorting screen 15, plastic recycling materials of different sizes are screened step by step through the different apertures of the sorting screen 15. Larger materials stay on the first-level sorting screen 15, medium-sized materials stay on the second-level sorting screen 15 after passing through the first-level sorting screen 15, and smaller materials stay on the third-level sorting screen 15 after passing through the first two-level sorting screens 15. S4. The sorted materials fall into the three receiving boxes 13 on the sliding seat 2 respectively. The user pulls the handle on the end plate 3 to extend the sliding seat 2 along the slide rail and remove the sorted material. S5. When the sliding seat 2 is pushed back to its initial position, the horizontal plate 9 resets under the action of the spring 11, ensuring that the sliding seat 2 is accurately positioned. The design of the limit plate 16 further prevents the sliding seat 2 from moving excessively and improves the stability of the device operation.
[0033] This utility model achieves the following innovative details through the above technical solution: The output end of the rotating electric cylinder 17 is directly connected to the rotating rod 18 via a coupling, eliminating the intermediate link in the traditional transmission mechanism and improving transmission efficiency. The aperture design of the sorting mesh 15 is based on actual sorting needs; by replacing different specifications of the sorting mesh 15, it can meet the application requirements of various sorting scenarios. The combination of the sliding seat 2 and the spring 11 reset mechanism not only simplifies the operation process but also improves the automation level of the device. The setting of the limit plate 16 effectively solves the problem of possible offset of the sliding seat 2 during operation, ensuring stable and reliable operation of the device.
[0034] In practical applications, this invention is suitable for the field of plastic recycling, especially demonstrating significant technical advantages in processing mixed plastic waste. For example, in a plastic recycling plant, workers collect mixed plastic waste from discarded household appliances and packaging materials and feed it into inlet 7. After being screened by the multi-stage sorting mesh 15 within the sorting seat 5, plastic waste of different sizes is precisely classified and falls into the corresponding collection box 13. Larger plastic blocks can be used for the production of recycled pellets, medium-sized plastic sheets can be used for injection molding, while smaller plastic fragments can be used as filler materials or incinerated for power generation. The use of this device significantly improves the plant's sorting efficiency, greatly reduces manual intervention, and the automated design of the device reduces operational difficulty and improves overall work efficiency.
[0035] Furthermore, the structure of this utility model is rationally designed, and the connection relationships between the various components are clearly defined. The main components, such as the base 1, sliding seat 2, mounting frame 4, and sorting seat 5, all adopt a modular design, facilitating manufacturing and maintenance. The sorting mesh 15 can be quickly replaced according to actual needs, adapting to sorting tasks of different sizes or types of plastic waste. The design of the spring 11 reset mechanism and the limiting plate 16 further enhances the reliability of the device, ensuring stable performance during long-term operation.
[0036] In summary, this invention drives the sorting screen 15 to rotate via the electric cylinder 17, enabling automatic sorting of recycled plastic materials within the sorting seat 5, reducing manual intervention and improving sorting efficiency. The design of the sliding seat 2 and the spring 11 reset mechanism makes the device more convenient to operate, while the introduction of the limiting plate 16 further enhances the operational stability of the device. The multi-stage sorting function meets the sorting needs of recycled plastic materials of different sizes or types, expanding the application range of the device. The overall structural design is reasonable, the connection relationships between the components are clear, facilitating manufacturing and maintenance, and making it suitable for the field of plastic recycling, possessing significant technical advantages and broad application prospects.
[0037] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An automatic sorting device for recycled plastic materials, characterized in that, The system includes a base (1), a sliding seat (2), a mounting frame (4), a sorting seat (5), a feeding bin (6), a rotating electric cylinder (17), a frame (14), a sorting net (15), a receiving box (13), and a limiting plate (16). The base (1) is equipped with a slide rail on its top. The sliding seat (2) is slidably connected to the base (1) through the slide rail. The sliding seat (2) has symmetrically arranged grooves (21). The inner wall of the grooves (21) is adapted to the horizontal plate (9). The horizontal plate (9) is slidably connected to the fixed seat (12) through the slide groove (10), and a spring (11) is fixedly connected between the horizontal plate (9) and the top wall of the slide groove (10). The mounting frame (4) is fixed to the base (1). The sorting seat (5) is inclined and connected by bolts in the middle. One end of the sorting seat (5) is fixedly connected to the feed bin (6). The top of the feed bin (6) is provided with a feed port (7). Three arrayed rotating electric cylinders (17) are rotatably installed on the mounting frame (4). The output end of the rotating electric cylinder (17) is fixedly connected to the rotating rod (18) through a coupling. The end of the rotating rod (18) is movably connected to the frame (14) through a pin. The frame (14) is rotatably installed on the sorting seat (5) through bearings and fixedly connected to the sorting net (15). Three receiving boxes (13) are placed on the sliding seat (2). One end of the base (1) is fixed with a limit plate (16) by bolts.
2. The automatic sorting device for recycled plastic materials according to claim 1, characterized in that: The sliding seat (2) has an end plate (3) welded to one end, and a handle is provided on the top of the end plate (3).
3. The automatic sorting device for recycled plastic materials according to claim 2, characterized in that: The spring (11) provided between the horizontal plate (9) and the top wall of the slide (10) has a specific elastic coefficient, and its compression is matched with the moving distance of the sliding seat (2).
4. The automatic sorting device for recycled plastic materials according to claim 1, characterized in that: The sorting seat (5) is a cavity structure with an opening at the top, and its tilt angle is designed to be between 15° and 30°.
5. The automatic sorting device for recycled plastic materials according to claim 4, characterized in that: The aperture of the sorting mesh (15) is designed to be different specifications according to the sorting requirements. The aperture of the first-stage sorting mesh is 10mm, the aperture of the second-stage sorting mesh is 5mm, and the aperture of the third-stage sorting mesh is 2mm.
6. The automatic sorting device for recycled plastic materials according to claim 1, characterized in that: When the limiting plate (16) contacts the end face of the sliding seat (2), it limits the maximum range of movement of the sliding seat (2).
7. The automatic sorting device for recycled plastic materials according to claim 1, characterized in that: The output end of the rotary electric cylinder (17) is directly connected to the rotating rod (18) via a coupling.
8. The automatic sorting device for recycled plastic materials according to claim 1, characterized in that: The three receiving boxes (13) placed on the sliding seat (2) correspond to sorting nets (15) of different specifications.