Automatic sorting device for plastic fragments
Patent Information
- Application Number
- CN202521362504.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-06-30
AI Technical Summary
NIR技术对颜色深、表面污染的塑料识别率较低，且无法区分金属与塑料；静电分选仅适用于特定塑料(如PE与PP)的分离，难以应对复杂混合物料
[0013]1.本实用新型所述的塑料碎片自动分拣设备，通过步进电机、输送带、送料板和刮板的设置，使步进电机、输送带和送料板的配合使用能够对物料进行有效输送，能够防止物料出现打滑现象，使得输送效率能够提高，同时还能够通过使用者的操控实现随时停止，刮板能够将输送带表面的物料推平，防止物料堆积从而影响分拣机构的分拣。
Smart Images
Figure CN224809851U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic technology, specifically an automatic plastic fragment sorting device. Background Technology
[0002] In the field of plastic recycling and waste treatment, efficient sorting of plastic fragments is a key step in achieving resource recycling. Traditional plastic sorting technologies mostly rely on manual labor or single-function equipment, resulting in problems such as low efficiency, high cost, and insufficient accuracy. For example, manual sorting requires a large amount of manpower and is easily affected by subjective judgment, making it difficult to meet the needs of large-scale processing; early optical sorting equipment could only distinguish plastic materials based on color or spectral characteristics, and could not effectively separate metallic impurities, resulting in substandard purity of sorted materials and affecting the quality of recycled plastics.
[0003] In recent years, some automated sorting equipment has adopted near-infrared spectroscopy (NIR) or electrostatic sorting technology. While these technologies have improved the efficiency of plastic material identification to some extent, they still have significant limitations. NIR technology has a low recognition rate for dark-colored plastics with surface contamination and cannot distinguish between metals and plastics. Electrostatic sorting is only suitable for separating specific plastics (such as PE and PP) and is difficult to handle complex mixtures. In addition, existing equipment generally lacks automatic classification functions for material particle size. The mixed handling of fragments of different sizes not only reduces sorting efficiency but also increases the difficulty of subsequent processing.
[0004] Therefore, this utility model provides an automatic plastic fragment sorting device. Utility Model Content
[0005] To overcome the shortcomings of the existing technology and solve at least one of the problems mentioned in the background technology, an automatic plastic fragment sorting device is proposed.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The automatic plastic fragment sorting equipment of this utility model includes a base plate; a supporting side plate is fixedly installed on the top of the base plate, a gantry frame is fixedly installed in the middle of the top of the supporting side plate, a sorting and conveying device is provided on one side of the supporting side plate, a conveying mechanism is provided on the inner wall of the supporting side plate, and a sorting mechanism is provided on the top of the supporting side plate; a collecting mechanism is provided on the inner wall of the supporting side plate away from the scraper, and a pushing mechanism is provided on the side of the supporting side plate away from the sorting and conveying device; a pushing mechanism is provided on the side of the supporting side plate near the pushing mechanism, and a driving mechanism is provided on the side of the supporting side plate near the pushing mechanism. The conveying mechanism includes a stepper motor, a conveyor belt, a feeding plate, and a scraper. The stepper motor is fixedly installed on one side of the support side plate, and the conveyor belt is rotatably installed on the inner wall of the support side plate. The output end of the stepper motor is fixedly installed with the conveyor belt, the surface of the conveyor belt is fixedly installed with the feeding plate, and one side of the inner wall of the support side plate is fixedly installed with the scraper. The combined use of the stepper motor, conveyor belt, and feeding plate can effectively convey materials, prevent material slippage, improve conveying efficiency, and allow for easy stopping by the user. The scraper can flatten the material on the surface of the conveyor belt, preventing material accumulation and thus affecting the sorting mechanism.
[0007] Preferably, the sorting mechanism includes a fixed plate, a permanent magnet, a camera, and supplementary lights. The fixed plate is fixedly installed on the top of the support side plate near the scraper. The top of the inner wall of the fixed plate is movably engaged with the permanent magnet. The camera is fixedly installed on the top of the inner wall of the gantry frame. The supplementary lights are fixedly installed on both sides of the top of the inner wall of the gantry frame. In this solution, the combination of the fixed plate and the permanent magnet can separate iron elements from the material, preventing iron products from mixing with the material. The combination of the camera and the supplementary lights can distinguish the composition and color of the material through visual and artificial intelligence algorithms.
[0008] Preferably, the collection mechanism includes an inclined screen, a collection box, and a separator. The inclined screen is fixedly installed on the inner wall of the support side plate away from the scraper. The collection box is slidably installed on the inner wall of the support side plate away from the scraper. The middle part of the inner wall of the collection box is fixedly installed with the separator. In this scheme, the inclined screen can separate materials of different sizes, further improving the sorting effect. The collection box can collect the materials sorted by the inclined screen for easy handling by the user. The separator can divide the inside of the collection box into two compartments, thereby separating materials of different sizes.
[0009] Preferably, the pushing mechanism includes a first shaft frame, a limiting guide rod, a push plate, and a side plate. Two sets of the first shaft frames are provided, and both sets are fixedly installed on the inner wall of the supporting side plate away from the sorting and conveying device. The inner wall of the first shaft frame is slidably installed with the limiting guide rod. The end of the limiting guide rod near the sorting and conveying device is fixedly installed with the push plate. The push plate is located on the inner wall of the supporting side plate and is slidably installed with it. The two sides of the push plate away from the limiting guide rod are fixedly installed with the side plate. In this design, the cooperation between the first shaft frame and the limiting guide rod makes the push plate more stable during sliding and also improves its guiding ability. The cooperation between the push plate and the side plate pushes the material in a single section of the conveyor belt surface towards the sorting and conveying device, thereby separating the materials.
[0010] Preferably, the pushing mechanism includes a T-shaped ring, a connecting block, and a screw. The T-shaped ring is fixedly installed on the side of the push plate near the limiting guide rod. The surface of the T-shaped ring is slidably installed with the connecting block. The side of the connecting block away from the T-shaped ring is fixedly installed with the screw. In this scheme, the cooperation between the T-shaped ring and the connecting block allows the push plate to move axially with the screw, but it will not rotate with the screw. The screw can push the push plate to move by driving the rotating rod.
[0011] Preferably, the drive mechanism includes a servo motor, a drive gear, a second shaft, a rotating rod, and a driven gear. The second shaft is fixedly installed at the bottom of the inner wall of the support side plate near the first shaft. The servo motor is fixedly installed on the side of the support side plate away from the sorting and conveying device. The output end of the servo motor is fixedly installed with the drive gear. The inner wall of the second shaft is rotatably installed with the rotating rod. The side of the rotating rod near the drive gear is fixedly installed with the driven gear. The screw is threaded onto the inner wall of the rotating rod. The driven gear meshes with the drive gear. In this scheme, the cooperation of the servo motor and the drive gear can drive the driven gear and the rotating rod to rotate, enabling them to drive the screw to extend and retract. At the same time, the user can control the speed of the servo motor to control the speed of the screw push. The cooperation of the second shaft, the rotating rod, and the driven gear can drive the screw to move laterally.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The automatic plastic fragment sorting equipment of this utility model, through the arrangement of stepper motor, conveyor belt, feeding plate and scraper, enables the effective conveying of materials by the coordinated use of stepper motor, conveyor belt and feeding plate, which can prevent material slippage and improve conveying efficiency. At the same time, it can be stopped at any time by the user. The scraper can flatten the material on the surface of the conveyor belt to prevent material accumulation and thus affect the sorting mechanism.
[0014] 2. The automatic plastic fragment sorting equipment of this utility model, through the setting of fixed plate, permanent magnet, camera and supplementary light, enables the fixed plate and permanent magnet to sort out iron elements in the material, preventing iron products from being mixed with the material. The camera and supplementary light can distinguish the composition and color of the material through vision and artificial intelligence algorithms. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a front perspective view of the present invention;
[0017] Figure 2 This is a rear view of the present invention;
[0018] Figure 3 This is a partial structural diagram of the present invention;
[0019] Figure 4 This is a schematic diagram of a partial explosion structure in this utility model.
[0020] Legend:
[0021] 1. Base plate; 2. Support side plate; 3. Gantry frame; 4. Conveying mechanism; 41. Stepper motor; 42. Conveyor belt; 43. Feeding plate; 44. Scraper; 5. Sorting mechanism; 51. Fixed plate; 52. Permanent magnet; 53. Camera; 54. Fill light; 6. Collection mechanism; 61. Inclined mesh; 62. Collection box; 63. Divider plate; 7. Pushing mechanism; 71. First shaft frame; 72. Limiting guide rod; 73. Push plate; 74. Side plate; 8. Pushing mechanism; 81. T-ring; 82. Connecting block; 83. Screw; 9. Drive mechanism; 91. Servo motor; 92. Drive gear; 93. Second shaft frame; 94. Rotating rod; 95. Driven gear; 10. Sorting and conveying device. Detailed Implementation
[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Specific implementation examples are given below.
[0024] like Figures 1 to 4As shown in the figure, the automatic plastic fragment sorting equipment of this utility model includes a base plate 1; a supporting side plate 2 is fixedly installed on the top of the base plate 1, a gantry frame 3 is fixedly installed in the middle of the top of the supporting side plate 2, a sorting and conveying device 10 is provided on one side of the supporting side plate 2, a conveying mechanism 4 is provided on the inner wall of the supporting side plate 2, a sorting mechanism 5 is provided on the top of the supporting side plate 2; a collecting mechanism 6 is provided on the inner wall of the supporting side plate 2 away from the scraper 44, a pushing mechanism 7 is provided on the side of the supporting side plate 2 away from the sorting and conveying device 10; a pushing mechanism 8 is provided on the side of the supporting side plate 2 close to the pushing mechanism 7, and a driving mechanism 9 is provided on the side of the supporting side plate 2 close to the pushing mechanism 7.The material conveying mechanism 4 includes a stepper motor 41, a conveyor belt 42, a feeding plate 43, and a scraper 44. The stepper motor 41 is fixedly installed on one side of the support side plate 2. The conveyor belt 42 is rotatably installed on the inner wall of the support side plate 2. The output end of the stepper motor 41 is fixedly installed with the conveyor belt 42. The surface of the conveyor belt 42 is fixedly installed with the feeding plate 43. The scraper 44 is fixedly installed on one side of the inner wall of the support side plate 2. The sorting mechanism 5 includes a fixed plate 51, a permanent magnet 52, a camera 53, and a supplementary light 54. The fixed plate 51 is fixedly installed on the top of the support side plate 2 near the scraper 44. The top of the inner wall of the fixed plate 51 is fixedly installed with the permanent magnet 54. 2. The camera 53 is fixedly installed on the top of the inner wall of the gantry 3. The supplementary light 54 is fixedly installed on both sides of the top of the inner wall of the gantry 3. The collection mechanism 6 includes an inclined mesh 61, a collection box 62, and a partition plate 63. The inclined mesh 61 is fixedly installed on the inner wall of the support side plate 2 away from the scraper 44. The collection box 62 is slidably installed on the inner wall of the support side plate 2 away from the scraper 44. The middle part of the inner wall of the collection box 62 is fixedly installed with the partition plate 63. The pushing mechanism 7 includes a first shaft frame 71, a limiting guide rod 72, a push plate 73, and a side plate 74. Two sets of first shaft frames 71 are provided, and the two sets of first shaft frames 71 are fixedly installed on the support side plate 2. On both sides of the inner wall away from the sorting conveyor 10, the inner wall of the first shaft frame 71 is slidably installed with the limiting guide rod 72. The end of the limiting guide rod 72 near the sorting conveyor 10 is fixedly installed with the push plate 73. The push plate 73 is located on the inner wall of the supporting side plate 2 and is slidably installed with the supporting side plate 2. The two sides of the push plate 73 away from the limiting guide rod 72 are fixedly installed with the side plate 74. The pushing mechanism 8 includes a T-shaped ring 81, a connecting block 82, and a screw 83. The T-shaped ring 81 is fixedly installed on the side of the push plate 73 near the limiting guide rod 72. The surface of the T-shaped ring 81 is slidably installed with the connecting block 82. The side of the connecting block 82 away from the T-shaped ring 81 is fixedly installed with the screw 83. 3. Fixed installation: The drive mechanism 9 includes a servo motor 91, a drive gear 92, a second shaft bracket 93, a rotating rod 94, and a driven gear 95. The second shaft bracket 93 is fixedly installed on the bottom of the inner wall of the support side plate 2 near the first shaft bracket 71. The servo motor 91 is fixedly installed on the side of the support side plate 2 away from the sorting and conveying device 10. The output end of the servo motor 91 is fixedly installed with the drive gear 92. The inner wall of the second shaft bracket 93 is rotatably installed with the rotating rod 94. The side of the rotating rod 94 near the drive gear 92 is fixedly installed with the driven gear 95. The screw 83 is threaded onto the inner wall of the rotating rod 94. The driven gear 95 meshes with the drive gear 92.
[0025] like Figures 1 to 4As shown, the combined use of stepper motor 41, conveyor belt 42, and feeding plate 43 effectively conveys materials, preventing slippage and improving conveying efficiency. It also allows for easy stopping by the user. Scraper 44 flattens the material on the surface of conveyor belt 42, preventing material accumulation that could affect the sorting mechanism 5. The combination of fixed plate 51 and permanent magnet 52 separates iron elements from the material, preventing iron products from mixing with other materials. The combination of camera 53 and supplementary light 54 uses visual and artificial intelligence algorithms to distinguish the composition and color of materials. Inclined mesh 61 separates materials of different sizes, further improving sorting efficiency. Collection box 62 collects the materials sorted by inclined mesh 61 for easy user access. Divider 63 divides the collection box 62 into two compartments, further separating materials of different sizes. The cooperation between the first shaft frame 71 and the limiting guide rod 72 makes the push plate 73 more stable when sliding, and also improves the guiding ability of the push plate 73. The cooperation between the push plate 73 and the side plate 74 can push the material in a single section on the surface of the conveyor belt 42 toward the sorting conveyor device 10, thereby separating the materials. The cooperation between the T-shaped ring 81 and the connecting block 82 allows the push plate 73 to move axially with the screw 83, but it will not rotate with the screw 83. The screw 83 can push the push plate 73 to move by driving the rotating rod 94. The cooperation between the servo motor 91 and the drive gear 92 can drive the driven gear 95 and the rotating rod 94 to rotate, so that it can drive the screw 83 to extend and retract. At the same time, the user can control the speed of the servo motor 91 to control the speed of the screw 83. The cooperation between the second shaft frame 93, the rotating rod 94 and the driven gear 95 can drive the screw 83 to move laterally.
[0026] Working Principle: During operation, first place 1 on a flat surface. Then, the user places plastic scraps on top of 42. Activating 41 drives 42 to rotate. As 42 rotates, it conveys the material towards 51 via 43. When the material passes 44, 44 flattens it to prevent accumulation, ensuring it remains level with 43. The material then reaches below 51, where 52 uses magnetism to attract iron-containing plastic or collect iron-containing items from the plastic. The material continues to be conveyed below 3. At this point, the user activates 53, which can be connected to artificial intelligence to analyze the color and composition of the plastic. When a special component is detected in the plastic in that area, 41 stops driving. Then, 91 is activated, driving 92 to rotate. The rotation of 92 causes 95 to rotate as well. The rotation of 95 causes 94 to rotate on the inner wall of 93. The continuous rotation of 94 causes 83 to move axially along the inner wall of 94 through the threaded connection with 83. When 83 rotates, it pushes 81 to move through 82, thereby pushing 73 and 74 towards 42. 73 pushes the material in the individual compartments on the surface of 42 towards 10 along 43 until it is pushed to the deepest point. Then the material falls into the surface of 10 through the inclined hole. Then 10 will transport the material in another direction. Then 91 is started to reverse so that 73 is reset. Then 41 is started again so that 42 continues to transport the material. When the material is transported to 61, 61 will sort the material. Smaller materials will fall into one side of the inner wall of 62, while larger materials will fall into the other side of the inner wall of 62 for storage. This completes the sorting of plastic fragments.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An automatic plastic scrap sorting device, comprising a base plate (1); characterized in that: A supporting side plate (2) is fixedly installed on the top of the base plate (1), a gantry frame (3) is fixedly installed in the middle of the top of the supporting side plate (2), a sorting and conveying device (10) is provided on one side of the supporting side plate (2), a material conveying mechanism (4) is provided on the inner wall of the supporting side plate (2), and a sorting mechanism (5) is provided on the top of the supporting side plate (2). The material conveying mechanism (4) includes a stepper motor (41), a conveyor belt (42), a feeding plate (43), and a scraper (44). The stepper motor (41) is fixedly installed on one side of the support side plate (2). The conveyor belt (42) is rotatably installed on the inner wall of the support side plate (2). The output end of the stepper motor (41) is fixedly installed with the conveyor belt (42). The surface of the conveyor belt (42) is fixedly installed with the feeding plate (43). The inner wall of the support side plate (2) is fixedly installed with the scraper (44). The sorting mechanism (5) includes a fixed plate (51), a permanent magnet (52), a camera (53), and a supplementary light (54). The fixed plate (51) is fixedly installed on the top of the support side plate (2) near the scraper (44). The top of the inner wall of the fixed plate (51) is movably engaged with the permanent magnet (52). The camera (53) is fixedly installed on the top of the inner wall of the gantry (3). The supplementary light (54) is fixedly installed on both sides of the top of the inner wall of the gantry (3).
2. The automatic plastic fragment sorting equipment according to claim 1, characterized in that: A collection mechanism (6) is provided on the inner wall of the support side plate (2) away from the scraper (44), and a pushing mechanism (7) is provided on the side of the support side plate (2) away from the sorting and conveying device (10).
3. The automatic plastic fragment sorting equipment according to claim 2, characterized in that: A pushing mechanism (8) is provided on the side of the support side plate (2) near the pushing mechanism (7), and a driving mechanism (9) is provided on the side of the support side plate (2) near the pushing mechanism (7).
4. The automatic plastic fragment sorting equipment according to claim 3, characterized in that: The collection mechanism (6) includes an inclined mesh (61), a collection box (62), and a partition plate (63). The inclined mesh (61) is fixedly installed on the inner wall of the support side plate (2) away from the scraper (44). The collection box (62) is slidably installed on the inner wall of the support side plate (2) away from the scraper (44). The middle part of the inner wall of the collection box (62) is fixedly installed with the partition plate (63).
5. The automatic plastic fragment sorting equipment according to claim 4, characterized in that: The pushing mechanism (7) includes a first shaft frame (71), a limiting guide rod (72), a push plate (73), and a side plate (74). The first shaft frame (71) is provided in two sets. The two sets of the first shaft frame (71) are fixedly installed on both sides of the inner wall of the supporting side plate (2) away from the sorting and conveying device (10). The inner wall of the first shaft frame (71) is slidably installed with the limiting guide rod (72). The end of the limiting guide rod (72) near the sorting and conveying device (10) is fixedly installed with the push plate (73). The push plate (73) is located on the inner wall of the supporting side plate (2) and is slidably installed with the supporting side plate (2). The two sides of the push plate (73) away from the limiting guide rod (72) are fixedly installed with the side plate (74).
6. The automatic plastic fragment sorting equipment according to claim 5, characterized in that: The pushing mechanism (8) includes a T-ring (81), a connecting block (82), and a screw (83). The T-ring (81) is fixedly installed on the side of the push plate (73) near the limiting guide rod (72). The surface of the T-ring (81) is slidably installed with the connecting block (82). The side of the connecting block (82) away from the T-ring (81) is fixedly installed with the screw (83).
7. The automatic plastic fragment sorting equipment according to claim 6, characterized in that: The drive mechanism (9) includes a servo motor (91), a drive gear (92), a second shaft frame (93), a rotating rod (94), and a driven gear (95). The second shaft frame (93) is fixedly installed on the bottom of the inner wall of the support side plate (2) near the first shaft frame (71). The servo motor (91) is fixedly installed on the side of the support side plate (2) away from the sorting and conveying device (10). The output end of the servo motor (91) is fixedly installed with the drive gear (92). The inner wall of the second shaft frame (93) is rotatably installed with the rotating rod (94). The side of the rotating rod (94) near the drive gear (92) is fixedly installed with the driven gear (95). The screw (83) is threadedly installed on the inner wall of the rotating rod (94). The driven gear (95) meshes with the drive gear (92).