Double-channel material selecting and distributing bin
By combining a dual-channel material sorting bin with a color sorting mechanism, the automated separation of transparent colorless and transparent colored PET plastic bottles is achieved, solving the problem of low efficiency in manual separation in existing technologies and improving recycling efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-31
AI Technical Summary
In existing technologies, it is difficult to efficiently and automatically separate transparent colorless and transparent colored PET plastic bottles during the plastic bottle recycling process, resulting in a lot of manual intervention and low separation efficiency.
It adopts a dual-channel material sorting and distribution bin, combined with a color sorting mechanism, industrial camera and material distribution impeller. The bottle color is identified by a backlight source, and the rotation of the material distribution impeller realizes the automatic separation of colorless and colored plastic bottles. Combined with the feeding auger and slag discharge hole, it realizes the separation of impurities.
It achieves efficient and automated separation of transparent colorless and transparent colored plastic bottles, with a color recognition accuracy of 99%, reducing manual intervention and separating particulate impurities in real time, thus improving recycling efficiency.
Smart Images

Figure CN224060227U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a material distribution bin, and more particularly to a dual-channel material selection and distribution bin. Background Technology
[0002] Due to commercial demand, plastic bottles made of PET material with transparent bodies are designed to be different colors. During the recycling process, plastic bottles of various colors are inevitably mixed together. Usually, the most numerous are still transparent and colorless PET bottles. On the plastic bottle recycling line, transparent and colorless plastic bottles need to be separated from transparent and colored plastic bottles for processing.
[0003] In the existing technology, when processing a batch of recycled plastic bottles, during the feeding stage or the plastic bottle conveying stage, the operator stands next to the line and picks up the colored plastic bottles from the line. The transparent and colorless plastic bottles are processed first to obtain transparent and colorless PET recycled fragments. Then the remaining colored plastic bottles are sent back into the line and processed to obtain transparent and colored PET recycled plastic. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model proposes a dual-channel material selection and distribution bin.
[0005] The material distribution bin includes: a bottle storage bin with two compartments, two sets of feeding augers that respectively transport waste plastic bottles to different compartments of the bottle storage bin, and a material distribution channel installed above the inlet of the two sets of feeding augers.
[0006] The material distribution channel is angled to ensure that waste plastic bottles can slide down the channel into the feeding auger. The part of the material distribution channel near the inlet is a dual-channel structure, with each channel located above the inlet of either feeding auger. The part of the material distribution channel away from the inlet is a single-channel structure, with a color sorting mechanism for separating waste plastic bottles by color. The color sorting mechanism feeds colorless transparent plastic bottles and colored transparent plastic bottles into the dual channels, where they fall into different feeding augers and are temporarily stored in different compartments of the bottle storage bin, achieving online separation of colored and colorless plastic bottles.
[0007] Furthermore, the color sorting mechanism includes: a distributing impeller installed at the center of a single channel, a rotating shaft fixedly set at the center of rotation of the distributing impeller, and a belt drive mechanism capable of driving the distributing impeller and the rotating shaft to reciprocate; the belt drive mechanism is installed on the lower surface of the distributing channel, the distributing impeller has three blades evenly distributed at 120°, the width of the narrowest part of the single channel is less than or equal to the distance between the tips of two adjacent blades, ensuring that every time the distributing impeller rotates 120°, the waste plastic bottles in the single channel will be sent into one of the channels of the dual channels.
[0008] Furthermore, the bottom of the single channel is equipped with an upward-illuminating backlight source, which is located between the feed end of the single channel and the rotating shaft, and in the area where the distributing impeller rotates. An industrial camera mounted on a camera bracket is located in the area above the backlight source, and the industrial camera is used to identify the color of waste plastic bottles.
[0009] Furthermore, the single-channel feed end is equipped with a feeding conveyor belt, which is equipped with a separating belt for conveying waste plastic bottles. The surface of the separating belt is equipped with raised separating teeth, which separate individual waste plastic bottles into independent spaces formed by the separating teeth.
[0010] Furthermore, the bottom of the feeding auger is equipped with densely distributed slag discharge holes, which are used to discharge particulate debris from the slag discharge holes when the waste plastic bottles are rotated and conveyed inside the feeding auger.
[0011] The technical advantages of this invention are as follows: First, it achieves automated sorting to replace manual labor: the industrial camera on the color sorting mechanism determines the color of the bottle, and combined with the reciprocating rotation of the distributing impeller, colorless and colored plastic bottles are fed into different feeding augers through a dual-channel structure, thus entering different bottle storage bins. Second, the industrial camera combined with a backlight source achieves a color recognition accuracy of ≥99%. The matching design between the narrowest width of the single channel and the distance between the tips of the distributing impeller blades ensures that each plastic bottle sliding down the single channel needs to undergo color judgment before being driven by the belt drive mechanism to feed the distributing impeller to the dual-channel at the rear end. The rotation direction of the distributing impeller determines the final bin position into which the plastic bottle will be sent. Third, the slag discharge hole at the bottom of the feeding auger can separate particulate impurities, such as sand, gravel, and iron filings, in real time during the conveying process. Attached Figure Description
[0012] Figure 1 This is a perspective view of the material distribution bin in this utility model;
[0013] Figure 2 This is a side view of the material distribution bin in this utility model;
[0014] Figure 3 This is a partially enlarged view of the color sorting mechanism in this utility model.
[0015] In the diagram, 1. Bottle storage bin, 2. Feeding auger, 3. Feeding channel, 4. Color sorting mechanism, 5. Feeding conveyor belt, 20. Feed inlet, 21. Slag discharge hole, 41. Industrial camera, 42. Camera bracket, 43. Backlight source, 44. Rotating shaft, 45. Belt drive mechanism, 46. Feeding impeller, 51. Feeding belt, 52. Feeding teeth; Detailed Implementation
[0016] The following is combined Figures 1 to 3 The embodiments of this utility model will be described in detail below.
[0017] Figure 1 The overall layout and structure of the material distribution bin are illustrated. The material distribution bin includes: a bottle storage bin 1 with two compartments, two sets of feeding augers 2 that respectively convey waste plastic bottles to different compartments of the bottle storage bin 1, and a material distribution channel 3 installed above the inlet 20 of the two sets of feeding augers 2.
[0018] The material distribution channel 3 has an inclined angle to ensure that waste plastic bottles can slide down the material distribution channel 3 into the feeding auger 2. The part of the material distribution channel 3 near the inlet 20 has a double channel structure, with the two channels located above the inlet 20 of either feeding auger 2. The part of the material distribution channel 3 away from the inlet 20 has a single channel structure, and a color sorting mechanism 4 is provided at the single channel to sort the waste plastic bottles by color.
[0019] Figure 2 This diagram illustrates the functional structure of the feeding conveyor belt and the feeding auger. The single-channel feed end is equipped with a feeding conveyor belt 5, which is equipped with a material distribution belt 51 for conveying waste plastic bottles. The surface of the material distribution belt 51 is equipped with raised material distribution teeth 52. The bottom of the feeding auger 2 is equipped with densely distributed slag discharge holes 21.
[0020] Figure 3 The diagram illustrates the composition and assembly position of the color sorting mechanism 4. The color sorting mechanism 4 includes: a distributing impeller 46 installed at the center of a single channel; a rotating shaft 44 fixedly installed at the center of rotation of the distributing impeller 46; and a belt drive mechanism 45 capable of driving the distributing impeller 46 and the rotating shaft 44 to reciprocate. The belt drive mechanism 45 is installed on the lower surface of the distributing channel 3. The distributing impeller 46 has three blades evenly distributed at 120°. The width of the narrowest part of the single channel is less than or equal to the distance between the tips of two adjacent blades, ensuring that every 120° rotation of the distributing impeller 46 will send the waste plastic bottles from the single channel into one of the two channels.
[0021] The bottom of the single channel is provided with an upward-illuminating backlight source 43. The backlight source 43 is located between the feed end of the single channel and the rotating shaft 44, and is located in the area where the material distribution impeller 46 rotates. The area above the backlight source 43 is provided with an industrial camera 41 mounted on a camera bracket 42.
[0022] Working principle: A single waste plastic bottle is placed in an independent unit separated by the dispensing teeth 52 on the dispensing belt 51, ensuring that only one plastic bottle is transported to the single channel of the dispensing channel 3 each time; the inclined design of the dispensing channel 3 allows the bottle to slide down by its own weight.
[0023] Dual-channel diversion: The dual-channel structure of the material distribution channel 3 near the inlet 20 distributes the bottle body to two sets of feeding screw conveyors 2, providing parallel processing capability for subsequent sorting.
[0024] A backlight source 43 illuminates the bottle from the bottom, and an industrial camera 41 captures color information in real time. The controller determines the bottle type, whether it is colored or colorless. For different types of plastic bottles, the dispensing impeller 46 rotates in different directions under the drive of the belt drive mechanism. When the target bottle reaches the color sorting position between two adjacent blades, the belt drive mechanism receives the color sorting result signal and drives the dispensing impeller to rotate 120° clockwise or counterclockwise, pushing different types of plastic bottles into the corresponding dual channels to achieve spatial separation of colorless and colored bottles. At this time, there are plastic bottles available at the color sorting position to receive the next plastic bottle from the feeding conveyor belt.
[0025] When the feeding auger 2 rotates, the bottom slag discharge hole 21 discharges the mixed sand, gravel, label fragments and other particles, reducing the load on the subsequent cleaning process; the separated colored plastic bottles and colorless plastic bottles are stored in different compartments of the bottle storage bin 1, preparing for further recycling and processing.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A dual lane ingredient dispensing bin, comprising: The distribution bin comprises a bottle distribution temporary storage bin (1) with two storage positions, two groups of feeding augers (2) respectively feeding waste plastic bottles to different storage positions of the bottle distribution temporary storage bin (1), and a distribution channel (3) installed above the feeding port (20) of the two groups of feeding augers (2); The distribution channel (3) has an inclined angle to ensure that the waste plastic bottles can slide into the feeding auger (2) along the distribution channel (3) by themselves, the part of the distribution channel (3) close to the feeding port (20) is a double-channel structure, and the double channels are respectively located above the feeding port (20) of any one feeding auger (2); the part of the distribution channel (3) away from the feeding port (20) is a single-channel structure, and the single channel is provided with a color sorting mechanism (4) for sorting waste plastic bottles by color.
2. The dual lane ingredient dispensing bin of claim 1, wherein, The color sorting mechanism (4) comprises a distribution impeller (46) installed at the center of the single channel, a rotating shaft (44) fixedly arranged at the rotation center of the distribution impeller (46), and a belt transmission mechanism (45) capable of driving the distribution impeller (46) and the rotating shaft (44) to rotate reciprocatingly. The belt transmission mechanism (45) is installed on the lower surface of the distribution channel (3), the distribution impeller (46) is provided with three blades uniformly distributed at an angle of 120°, the width of the narrowest part of the single channel is less than or equal to the distance between the top ends of the adjacent two blades, and the waste plastic bottles in the single channel are sent into one of the two channels in the double channel every 120° rotation of the distribution impeller (46).
3. The dual lane ingredient dispensing bin of claim 2, wherein, The single channel is provided with a backlight light source (43) irradiating upward at the bottom, the backlight light source (43) is located between the feeding end of the single channel and the rotating shaft (44) and in the rotation area of the distribution impeller (46), an industrial camera (41) is arranged on a camera support (42) corresponding to the upper area of the backlight light source (43).
4. The dual lane ingredient dispensing bin of claim 3, wherein, The feeding end of the single channel is provided with a feeding transmission belt (5), the feeding transmission belt (5) is provided with a distribution belt (51) for conveying waste plastic bottles, and the surface of the distribution belt (51) is provided with protruding distribution teeth (52).
5. The dual lane ingredient dispensing bin of claim 1, wherein, The bottom of the feeding auger (2) is provided with densely distributed deslagging holes (21).