Regenerated plastic color sorting device
By introducing a screw rod and gear transmission system into the recycled plastic color sorting device, the problems of controlling the plastic falling speed and clearing blockages were solved, achieving stable conveying and efficient color sorting of recycled plastics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-24
AI Technical Summary
Existing recycled plastic color sorting devices have shortcomings in adjusting the falling speed of crushed plastic and clearing blockages. They cannot effectively control the falling speed, and the clearing process affects the color sorting effect.
A screw rod is used to pass through the inside of the transmission pipe. The speed at which the plastic falls is adjusted by the rotation of the screw rod. The longitudinal horizontal position of the screw rod is used to clear blockages. Combined with a gear transmission system, stable delivery of plastic and rapid clearing of blockages are achieved.
It enables flexible adjustment of the plastic falling speed, improves color sorting efficiency, avoids the unnecessary discharge of plastic when clogging occurs, and ensures the continuity and efficiency of the color sorting process.
Smart Images

Figure CN224025760U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of plastic color selection, specifically to a recycled plastic color selection device. BACKGROUND
[0002] The recycled plastic color selection device is an advanced recycling equipment, which is mainly used for accurately classifying recycled plastics according to colors. It automatically identifies and sorts out the color particles in the granular materials based on the optical characteristic differences of the materials and uses photoelectric detection technology. This device plays an important role in the recycling industry and can significantly improve the recycling rate and quality of recycled plastics.
[0003] The Chinese patent with publication number CN215242173U discloses a broken plastic color selection device for recycling waste lead-acid storage batteries, which includes a box body, a fixed plate, a hopper, a lower plate, a discharge port, two symmetrical guide plates, and a discharge opening. The utility model has a simple structure and is easy to operate. It can effectively control the amount of discharged material, adjust the opening of the discharge port while controlling the distance between the vertical parts of the guide plates, prevent the blockage of discharged material, prevent the overlapping of broken plastics, effectively color-select broken plastics, and has high color selection efficiency, which is suitable for color-selecting broken plastics of different sizes.
[0004] The broken plastic color selection device of the above-mentioned patent has few limitations on the discharge of broken materials during operation. It can only limit the discharge by adjusting the distance between the two guide plates, but it mainly targets the size of the broken plastics and cannot adjust the falling speed of the broken plastics. Similarly, for the broken plastics blocked between the two guide plates, only the distance between the guide plates can be expanded to unblock them, and during the unblocking process, the blocked broken plastics will fall together, affecting the subsequent color selection of the broken plastics. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a recycled plastic color selection device. The spiral rod penetrates the inside of the transmission pipe where the plastics fall, and the falling speed of the plastics from the inside of the transmission pipe can be adjusted by the rotation of the spiral rod. When blocked, adjusting the longitudinal horizontal position of the spiral rod can unblock it, solving the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a recycled plastic color selection device, which includes an outer shell, a partition strip in the middle of the inner shell, a guide frame on one side of the upper end of the partition strip, a transmission pipe on the outer upper end of the guide frame, a spiral rod penetrating the inside of the transmission pipe, a sliding rail around the outer spiral rod and the inner wall of the transmission pipe.
[0007] Preferably, the upper end of the screw rod is provided with a transmission rod, the upper end of the transmission rod is provided with a second gear, and the second gear, the transmission rod and the screw rod are sequentially welded and fixed.
[0008] Preferably, one side of the outer portion of the second gear is provided with a first gear, and the outer portion of the first gear is meshingly connected with the outer portion of the second gear.
[0009] Preferably, the longitudinal length of the second gear is longer than the longitudinal length of the first gear.
[0010] Preferably, the upper end of the second gear is provided with a connecting piece, the lower end of the connecting piece is rotationally connected with the upper end of the second gear, one side of the outer portion of the connecting piece is provided with a threaded rod, and the outer portion of the threaded rod is threadedly matched with the penetrating position of the inner portion of the connecting piece.
[0011] Preferably, the upper end of the threaded rod is provided with a transmission disc, and the transmission disc is welded and fixed with the threaded rod.
[0012] Preferably, the lower end of the screw rod is provided with a prismatic flow guide ring.
[0013] Preferably, the front ends of the two sides of the segmentation strip are both provided with transparent visual glass.
[0014] Compared with the prior art, the utility model has the beneficial effects as follows:
[0015] 1、The material in the storage barrel flows from the transmission pipe and is transmitted towards the flow guide frame, is limited by the screw rod, the plastic is limited and slides from the sliding rail spirally surrounding the outer portion of the screw rod and is discharged, the screw rod can be driven by the output of the upper end motor and rotates, the rotation of the screw rod can adjust the material falling speed through the friction between the screw rod and the plastic, the plastic material falling speed is convenient to adjust and is convenient to adapt to different size plastics.
[0016] 2、When the motor outputs the first gear and makes the second gear rotate, the second gear rotates and drives the screw rod at the lower end to rotate, when the plastic particles are extruded in the sliding rail, the transmission disc is manually held under the condition that the screw rod normally rotates, the transmission disc is held and drives the threaded rod to rotate in the corresponding direction, the rotation of the threaded rod can adjust the horizontal position of the second gear, the transmission rod and the screw rod, the plastic particles in the internal blockage are actively loosened through the horizontal direction adjustment, when the horizontal position of the second gear, the transmission rod and the screw rod is adjusted, the second gear longer than the first gear is continuously meshingly connected with the first gear, and the continuous rotation of the screw rod is maintained, the internal blockage position is conveniently and efficiently dredged, and a large amount of plastic particles is not caused to be discharged without reason in the conveying process. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the overall external structure perspective view of the utility model;
[0018] Figure 2 It is the transmission pipe internal structure sectional view of the utility model;
[0019] Figure 3 It is the Figure 2 Middle A area local enlarged view of the utility model;
[0020] Figure 4 It is the Figure 2 Middle B area local enlarged view of the utility model;
[0021] Figure 5 It is the shell internal plastic flow trajectory schematic view of the utility model.
[0022] In the figure: 1, shell; 2, visible glass; 3, storage barrel; 4, transmission pipe; 5, transmission disc; 6, spiral rod; 7, flow guide ring; 8, flow guide frame; 9, first gear; 10, second gear; 11, connecting sheet; 12, threaded rod; 13, transmission rod; 14, sliding rail; 15, segmentation strip; 16, color selection lens; 17, nozzle. DETAILED DESCRIPTION
[0023] The application will be further described below in conjunction with specific embodiments.
[0024] Embodiment 1
[0025] As shown in Figure 1 and Figure 5 , the regenerated plastic color selection device of the embodiment includes a shell 1, an intermediate part inside the shell 1 is provided with a segmentation strip 15, and both ends of the segmentation strip 15 are respectively welded and fixed with the shell 1, one side of the upper end of the segmentation strip 15 is provided with a nozzle 17, the upper end of the nozzle 17 is provided with a color selection lens 16, the plastic particles falling from the upper end of the color selection lens 16 will be monitored one by one by the color selection lens 16, when the color selection lens 16 monitors the color that is different from the setting, the air blower connected with the nozzle 17 will start, the falling plastic particles of different colors can be blown by the flow of air, the falling position of the plastic particles can be adjusted by blowing gas through the nozzle 17, and color selection is realized.
[0026] In order to facilitate the limitation of the falling of the plastic particles, the upper end of the color selection lens 16 is provided with a flow guide frame 8, the upper end outside the flow guide frame 8 is provided with a transmission pipe 4, as shown in Figure 2 and Figure 4As shown, the upper end of the transmission pipe 4 is provided with a receiving barrel 3, and the plastic particles inside the receiving barrel 3 will slide along the longitudinal direction of the transmission pipe 4 downward, and after being guided by the inclined track inside the guide frame 8, the plastic particles can be checked by the color selection lens 16. The inside of the transmission pipe 4 is provided with a spiral rod 6, and the plastic particles falling inside the transmission pipe 4 will be limited by the spiral rod 6;
[0027] Wherein, the outside of the spiral rod 6 and the inner wall of the transmission pipe 4 are provided with a sliding rail 14 around, and the plastic particles transmitted in the transmission pipe 4 will slide along the sliding rail 14 and fall down;
[0028] In addition, the upper end of the spiral rod 6 is provided with a transmission rod 13, the upper end of the transmission rod 13 is provided with a second gear 10, and the second gear 10, the transmission rod 13 and the spiral rod 6 are sequentially welded and fixed. One side of the outside of the second gear 10 is provided with a first gear 9, and the outside of the first gear 9 is meshed and connected with the outside of the second gear 10. The output of the upper end motor of the first gear 9 can drive the second gear 10 to rotate through the first gear 9, and the rotation of the second gear 10 can drive the spiral rod 6 to rotate. The rotation of the spiral rod 6 can adjust the state of the sliding rail 14, and at the same time, the sliding rail 14 can generate friction with the plastic inside the sliding rail 14, and the falling speed of the plastic particles can be adjusted through the friction;
[0029] In order to quickly unblock the particles inside the sliding rail 14, as shown in Figure 2 And Figure 3 As shown, the upper end of the second gear 10 is provided with a connecting piece 11, and the lower end of the connecting piece 11 is rotatably connected with the upper end of the second gear 10. One side of the outside of the connecting piece 11 is provided with a threaded rod 12, and the outside of the threaded rod 12 is threadedly matched with the inside of the connecting piece 11. The rotation of the threaded rod 12 can drive the connecting piece 11 and the second gear 10, the transmission rod 13 and the transmission pipe 4 connected at the lower end to adjust the longitudinal horizontal position. During the rotation of the spiral rod 6, the longitudinal horizontal position is adjusted to unblock the plastic particles inside the sliding rail 14;
[0030] As shown in Figure 3 The upper end of the threaded rod 12 is provided with a transmission disc 5, and the transmission disc 5 is welded and fixed with the threaded rod 12. By holding the position of the transmission disc 5, the position of the threaded rod 12 can be rotated;
[0031] Example 2
[0032] In order to deal with special situation and limit the material falling of the sliding rail 14 position, the lower end of the screw rod 6 is provided with a prism-shaped flow guide ring 7, the inclined outer wall of the flow guide ring 7 is matched with the lower end of the conveying pipe 4 along with the longitudinal movement of the screw rod 6, so as to limit the falling of the plastic particles, at the same time, the outer inclined wall of the flow guide ring 7 can guide and buffer the impact force of the particles falling from the sliding rail 14 position, so as to avoid the impact force being too large to cause the plastic particles to collide with the inside of the flow guide frame 8, and avoid the plastic particles from splashing;
[0033] Embodiment 3
[0034] In order to intuitively observe the falling condition of the plastic particles on both sides of the partition strip 15, the front ends on both sides of the partition strip 15 are provided with transparent visual glass 2, and the visual glass 2 and the shell 1 are bonded and fixed by glue.
[0035] Working principle: when the device is used and the plastic particles are color selected, the color selected particle materials are put into the receiving barrel 3, after being put into the receiving barrel 3, the particle materials flow longitudinally downward from the conveying pipe 4, and in the process of flowing downward, the plastic particles flow longitudinally downward around the sliding rail 14 around the screw rod 6 after being limited by the screw rod 6, and finally flow into the flow guide frame 8, through the flow guide of the inclined position in the flow guide frame 8, the plastic particles can contact the shooting range of the color selection lens 16, after the color selection lens 16 monitors the abnormal color, the abnormal color monitored can be blown by the start of the nozzle 17, the falling track of the particles of different colors is adjusted, and the color selection is realized.
[0036] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or apparatus.
[0037] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A color sorting device for recycled plastics, comprising a housing (1), wherein a dividing strip (15) is provided in the middle of the interior of the housing (1), characterized in that, A guide frame (8) is provided on one side of the upper end of the dividing strip (15). A transmission pipe (4) is provided at the upper end of the outer side of the guide frame (8). A spiral rod (6) is provided through the inside of the transmission pipe (4). A sliding rail (14) is provided around the outer side of the spiral rod (6) and the inner wall of the transmission pipe (4).
2. The recycled plastic color sorting device according to claim 1, characterized in that, The upper end of the screw rod (6) is provided with a transmission rod (13), and the upper end of the transmission rod (13) is provided with a second gear (10). The second gear (10), the transmission rod (13) and the screw rod (6) are welded and fixed together in sequence.
3. The recycled plastic color sorting device according to claim 2, characterized in that, A first gear (9) is provided on one side of the outside of the second gear (10), and the outside of the first gear (9) is meshed with the outside of the second gear (10).
4. The recycled plastic color sorting device according to claim 3, characterized in that, The longitudinal length of the second gear (10) is longer than that of the first gear (9).
5. A color sorting device for recycled plastics according to claim 4, characterized in that, The upper end of the second gear (10) is provided with a connecting piece (11), and the lower end of the connecting piece (11) is rotatably connected to the upper end of the second gear (10). A threaded rod (12) is provided on one side of the outer side of the connecting piece (11), and the outer side of the threaded rod (12) is threadedly engaged with the inner through position of the connecting piece (11).
6. The color sorting device for recycled plastics according to claim 5, characterized in that, The upper end of the threaded rod (12) is provided with a transmission disc (5), and the transmission disc (5) is welded and fixed to the threaded rod (12).
7. A color sorting device for recycled plastics according to claim 2, characterized in that, The lower end of the screw rod (6) is provided with a frustum-shaped guide ring (7).
8. The color sorting device for recycled plastics according to claim 1, characterized in that, The front ends of both sides of the dividing strip (15) are provided with transparent viewing glass (2).
Citation Information
Patent Citations
Crushed plastic color sorting device for recycling waste lead-acid storage batteries
CN215242173U