Intelligent sorting system and method for waste textiles

Abstract

An identification and sorting device for waste textiles, comprising a cutting unit (1), a separation unit (2), an identification unit (3), and a sorting unit (4). The cutting unit (1) is used for cutting waste textiles into fabric pieces of a preset size; the separation unit (2) is used for separating the cut fabric pieces; the identification unit (3) is used for identifying the material of the separated fabric pieces; and the sorting unit (4) is used for classifying and collecting the identified fabric pieces. The identification and sorting device for waste textiles effectively improves the waste textile sorting efficiency, and changes the situation where existing waste textile sorting is mainly manual, thereby reducing labor costs; effectively solves the problem that existing waste textile sorting depends on manual experience, resulting in low accuracy, thereby improving the sorting accuracy of waste textiles; and effectively overcomes the difficulty faced by existing waste textile recycling enterprises in meeting the high purity requirements for raw materials, thereby improving the production efficiency of the waste textile recycling enterprises.

Description

An intelligent sorting system and method for waste and old textiles TECHNICAL FIELD

[0001] The present application relates to the field of renewable resource classification and recycling, and particularly relates to an intelligent sorting system and method for waste and old textiles. BACKGROUND

[0002] With the gradual improvement of the average quality of life of the Chinese nation, people's demand for textile products has also changed, and they have gradually begun to pursue the style and quality of textile products, which has seriously compressed the life cycle and service life of textile products. Some textile products are discarded prematurely due to obsolescence, resulting in an increasing number of waste and old clothes.

[0003] The main way to handle waste and old clothes at present is divided into two types: 1) the part with better quality and higher value is usually donated to poor mountainous areas in China or exported to poor war-torn countries in East Africa to extend its service life; 2) the part with poor quality and low value is mostly incinerated as household garbage, but this way not only wastes resources but also causes secondary pollution.

[0004] In recent years, China has been trying to recycle and comprehensively utilize waste and old textiles as renewable resources, and some enterprises have developed corresponding recycling and utilization processes for waste and old textiles, but they are only for natural fibers and single-fiber textiles, and the recycling and utilization of blended textiles are still a difficulty.

[0005] At present, the recycling and classification of waste and old textiles in China is chaotic, and the composition of clothes is complex, mainly relying on artificial classification methods based on human experience, but this method not only has low classification efficiency and cannot guarantee the classification accuracy, but also affects the recycling of waste and old textiles.

[0006] SUMMARY

[0007] The purpose of the present application is to provide a waste and old textile identification and sorting device that can improve the sorting efficiency and accuracy of waste and old textiles and provide high-quality processing raw materials for the recycling of waste and old textiles.

[0008] The technical problem solved by the present application adopts the following technical scheme:

[0009] A waste and old textile identification and sorting device, comprising a cutting unit, a scattering unit, an identification unit and a sorting unit; the cutting unit is used for cutting waste and old textiles into cloth pieces of a predetermined size, the scattering unit is used for scattering the cloth pieces cut, the identification unit is used for identifying the material of the scattered cloth pieces, and the sorting unit is used for classifying and collecting the identified cloth pieces.

[0010] The cutting unit comprises a box body, a feeding conveyor belt, a rolling cutter and a fixed cutter; the feeding conveyor belt is connected with the box body and is used to convey the waste textile to the inside of the box body; the rolling cutter and the fixed cutter are arranged inside the box body and are used to cut the waste textile;

[0011] The dispersing unit comprises a hopper and a vibrator arranged at the bottom of the hopper; the vibrator is used to disperse the cloth pieces inside the hopper;

[0012] The identification unit comprises a camera and a host; the camera is used to take pictures of the cloth pieces on the conveyor belt and upload the pictures to the host; the host identifies the material category and the material content of the cloth pieces according to the pictures and sends different control signals to the sorting unit according to the identification result;

[0013] The sorting unit comprises a spray gun, a compressed air source and a collection basket; the spray gun is arranged at the tail end of the conveyor belt and is connected with the compressed air source through a solenoid valve; the solenoid valve is connected with the host of the identification unit and is controlled according to the control signal sent by the identification unit; the collection basket is used to collect different types of cloth pieces.

[0014] Further, the side plate and the bottom plate of the box body are respectively provided with an inlet and an outlet; a pressing assembly is arranged above the inlet of the box body; the feeding end of the feeding conveyor belt is arranged outside the box body, the discharging end penetrates through the inlet and is arranged inside the box body and below the pressing assembly; the fixed cutter is arranged above the discharging end of the feeding conveyor belt and is spaced apart from the discharging end of the feeding conveyor belt; the rolling cutter is rotatably arranged inside the box body.

[0015] Further, the pressing assembly comprises a fixed plate, a roller, a bearing, a movable block and a spring; the number of the fixed plates is two; the two fixed plates are arranged in parallel on the top plate of the box body; a rectangular hole is arranged on the fixed plate; a guide rail is arranged on the hole wall of the rectangular hole; a sliding block is arranged on the guide rail; the movable block is fixed on the sliding block and a through hole is arranged on the movable block; the bearing is arranged in the through hole of the movable block; the connecting rods are formed on the two end faces of the roller; the connecting rods are respectively fixed on the bearings inside the two movable blocks; one end of the spring is fixed on the upper hole wall of the rectangular hole and the other end is fixed on the movable block.

[0016] Further, the rolling cutter comprises rotating side plates, rolling support columns, blades and fixing columns; the number of the rotating side plates is two, the two rotating side plates are arranged at intervals and are parallel to each other; the number of the blades is two, the two blades are arranged between the two rotating side plates and the two ends of the two blades are connected with the rotating side plates respectively; the two blades are arranged in parallel and the directions of the cutting edges of the two blades are opposite; the fixing columns are arranged between the two blades and are used for fixing the blades; the number of the rolling support columns is two, the two rolling support columns are arranged outside the two rotating side plates and are fixed on the box through bearings.

[0017] Further, the size of the cut cloth piece can be controlled by adjusting the rotating speed of the rolling cutter, the number and interval of the blades and the transmission speed of the feeding conveyor belt.

[0018] Further, the box is internally provided with a material blocking block.

[0019] The application solves the technical problems by adopting the following technical scheme:

[0020] A waste textile identification and sorting method comprises the following steps:

[0021] S10, pretreating the collected waste textile;

[0022] S20, cutting the pretreated waste textile into cloth pieces of a preset size through a cutting unit;

[0023] S30, dispersing the cloth pieces through a dispersing unit;

[0024] S40, identifying the dispersed cloth pieces through an identification unit;

[0025] S50, classifying and collecting the identified cloth pieces through a sorting unit.

[0026] The waste textile identification and sorting device effectively improves the sorting efficiency of waste textiles, changes the current situation that waste textile sorting is mainly manual, reduces the labor cost, effectively solves the problem that the current waste textile sorting relies on manual experience and the accuracy is not high, improves the sorting accuracy of waste textiles, effectively solves the problem that the demand for raw material purity of the current waste textile recycling enterprises is high and difficult to achieve, and improves the production efficiency of the waste textile recycling enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 is a schematic view of the cutting unit in the application;

[0028] Fig. 2 is a schematic view of the internal structure of the cutting unit in the application;

[0029] Figs. 3-4 are schematic views of the structure of the compression assembly in the application;

[0030] Fig. 5 is a schematic view of the compression assembly compressing the waste textiles on the feeding conveyor belt;

[0031] Fig. 6 is a schematic view of the rolling cutter in the present application;

[0032] Fig. 7 is a schematic view of the rolling cutter cooperating with the fixed cutter for cutting in the present application;

[0033] Fig. 8 is a schematic view of the scattering unit in the present application;

[0034] Fig. 9 is a schematic view of the identification unit and the sorting unit in the present application.

[0035] The reference signs in the figures are as follows: 1 - cutting unit; 2 - scattering unit; 3 - identification unit; 4 - sorting unit; 11 - box body; 12 - feeding conveyor belt; 13 - rolling cutter; 14 - fixed cutter; 15 - discharging conveyor belt; 16 - compression assembly; 17 - material blocking block; 21 - hopper; 22 - vibrator; 31 - camera; 41 - spray gun; 42 - compressed air source; 43 - collection basket; 131 - rotating side plate; 132 - rolling support column; 133 - blade; 134 - fixed column; 161 - fixed plate; 162 - roller; 163 - bearing; 164 - movable block; 165 - spring. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be further described below in combination with the embodiments and the drawings.

[0037] Embodiment 1

[0038] As shown in Figs. 1-6, a waste textile identification and sorting device includes a cutting unit 1, a scattering unit 2, an identification unit 3 and a sorting unit 4; the cutting unit 1 is used for cutting the waste textiles into cloth pieces of a preset size, the scattering unit 2 is used for scattering the cloth pieces cut, the identification unit 3 is used for identifying the material of the cloth pieces after scattering, and the sorting unit 4 is used for classifying and collecting the cloth pieces after identification.

[0039] In this embodiment, a conveyor belt is arranged between the cutting unit 1, the scattering unit 2, the identification unit 3 and the sorting unit 4, so as to transmit the waste textiles from one unit to another unit through the conveyor belt.

[0040] As shown in Fig. 2, the cutting unit 1 includes a box body 11, a feeding conveyor belt 12, a rolling cutter 13, a fixed cutter 14 and a discharging conveyor belt 15; the feeding conveyor belt 12 is connected with the box body 11 and is used for conveying the waste textiles into the box body, the rolling cutter 13 and the fixed cutter 14 are arranged in the box body and cooperate with each other to cut the waste textiles.

[0041] In the embodiment, the side plates and the bottom plate of the box 11 are respectively provided with an inlet and an outlet, a pressing assembly 16 is arranged above the inlet, the inlet end of the feeding conveyor belt 12 is arranged outside the box, the outlet end passes through the inlet and is arranged inside the box 11 below the pressing assembly 16, the fixed cutter 14 is arranged at the outlet end of the feeding conveyor belt 12 with the blade upward and is arranged in a spaced manner with the outlet end of the feeding conveyor belt 12, and the rolling cutter 13 is rotatably arranged inside the box 11.

[0042] Specifically, the pressing assembly 16 comprises a fixed plate 161, a roller 162, a bearing 163, a movable block 164 and a spring 165, the fixed plate 161 is arranged in parallel on the top plate of the box 11 in a number of two, a rectangular hole is arranged on the fixed plate 161, a guide rail 166 is arranged on the hole wall of the rectangular hole, and a sliding block 167 is arranged on the guide rail, the movable block 164 is fixed on the sliding block 167 and a through hole is arranged on the movable block, the bearing 163 is arranged in the through hole of the movable block, the roller 162 is provided with a connecting rod on the two end faces, the connecting rod is respectively fixed on the bearings inside the two movable blocks, and the spring 165 is fixed on the upper hole wall of the rectangular hole at one end and on the movable block at the other end.

[0043] In the embodiment, the waste textile is conveyed into the box by the feeding conveyor belt 12, is pressed by the pressing assembly 16, is moved above the fixed cutter 14 after being pressed, and is cut by the cooperation of the fixed cutter 14 and the rolling cutter 13.

[0044] As shown in FIG. 3, the rolling cutter 13 comprises a rotating side plate 131, a rolling support column 132, a blade 133 and a fixed column 134, the rotating side plate 131 is arranged in a number of two in a spaced manner and in parallel, the blade 133 is arranged between the two rotating side plates in a number of two and is connected with the rotating side plates at the two ends, the two blades are arranged in parallel and the blade edges are opposite, the fixed column is arranged between the two blades for fixing the blades, and the rolling support column is arranged outside the two rotating side plates in a number of two and is fixed on the box through bearings.

[0045] In the embodiment, the rolling cutter 13 rotates under the driving of the motor, the blade 133 contacts the waste textile and is cut by the cooperation of the fixed cutter 14. In addition, the size of the cut cloth piece can be controlled by adjusting the rotating speed of the rolling cutter, the number and distance of the blades and the conveying speed of the feeding conveyor belt.

[0046] On the other hand, the box body is further provided with a material blocking block 17, which can effectively remove the cloth pieces adhered to the rolling cutter, thereby preventing secondary cutting of the cloth pieces.

[0047] After cutting, the cloth pieces are discharged from the discharge port of the cutting unit 1 and conveyed to the scattering unit 2 by a conveyor belt for scattering treatment. As shown in FIG. 8, the scattering unit 2 includes a hopper 21 and a vibrator 22 arranged at the bottom of the hopper, which is used to scatter the cloth pieces in the hopper.

[0048] In this embodiment, the stacking and adhesion of the cloth pieces are avoided by the arrangement of the scattering unit 2, thereby improving the recognition effect and accuracy of the recognition unit 3.

[0049] As shown in FIG. 9, the recognition unit 3 distinguishes the material category and content of the cloth pieces based on intelligent AI recognition of near-infrared band hyperspectral image technology, and sends different control signals to the sorting unit according to the recognition result. Specifically, the recognition unit 3 includes a camera 31 and a host computer (not shown), the camera 31 is used to take pictures of the cloth pieces on the conveyor belt and upload the pictures to the host computer, the host computer identifies the material category and content of the cloth pieces according to the pictures, and sends different control signals to the sorting unit 4 according to the recognition result. It should be noted that the identification of the material category and content of the cloth pieces according to the pictures is a prior art, which will not be described here.

[0050] In this embodiment, when the recognition unit 3 identifies the cloth pieces on the conveyor belt, the height of the camera can be adjusted to ensure that all the cloth pieces can be identified.

[0051] Continuing to refer to FIG. 9, the sorting unit 4 includes a spray gun 41, a compressed air source 42 and a collection basket 43, the spray gun 41 is arranged at the tail end of the conveyor belt and connected with the compressed air source 42 through a solenoid valve; the solenoid valve is connected with the host computer of the recognition unit 3 and controlled according to the control signal sent by the recognition unit; the collection basket is used to collect different types of cloth pieces.

[0052] In this embodiment, the host computer controls the size of the air blowing force of the spray gun 41 according to the recognition result, so as to blow different types of cloth pieces into different collection baskets 43, and finally complete the sorting.

[0053] As another embodiment of the present application, the above-mentioned waste textile identification and sorting device is used for identifying and sorting waste textiles, including the following steps:

[0054] S10, pretreating the collected waste textiles;

[0055] In the embodiment, the pretreatment refers to manually removing non-textile parts such as zippers and buttons on the waste textile.

[0056] S20, cutting the waste textile after the pretreatment into cloth pieces of a preset size through a cutting unit;

[0057] S30, dispersing the cloth pieces through a dispersing unit;

[0058] S40, identifying the cloth pieces after the dispersing through an identifying unit;

[0059] S50, classifying and collecting the identified cloth pieces through a sorting unit.

[0060] The sequence of the above embodiments is only for the convenience of description, and does not represent the advantages and disadvantages of the embodiments.

[0061] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for identifying and sorting waste textiles, characterized in that: It includes a cutting unit, a breaking up unit, an identification unit and a sorting unit; the cutting unit is used to cut the waste textiles into pieces of cloth of a preset size, the breaking up unit is used to break up the cut pieces of cloth, the identification unit is used to identify the material of the broken pieces of cloth, and the sorting unit is used to classify and collect the identified pieces of cloth; The cutting unit includes a box, a feeding conveyor belt, a rolling cutter and a fixed cutter; the feeding conveyor belt is connected to the box and is used to transport the waste textiles into the box; the rolling cutter and the fixed cutter are arranged inside the box and are used to cut the waste textiles; The breaking up unit includes a hopper and a vibrator provided at the bottom of the hopper, and the vibrator is used to break up the cloth pieces inside the hopper; The recognition unit includes a camera and a host. The camera is used to take pictures of the cloth pieces on the conveyor belt and upload the pictures to the host. The host identifies the material type and material content of the cloth pieces based on the pictures and sends different control signals to the sorting unit according to the identification results. The sorting unit includes a spray gun, a compressed air source and a collection basket. The spray gun is arranged at the tail end of the conveyor belt and is connected to the compressed air source through a solenoid valve; the solenoid valve is connected to the host of the identification unit and is controlled according to the control signal sent by the identification unit; the collection basket is used to collect different types of cloth pieces.

2. The waste textile identification and sorting device according to claim 1, characterized in that: A feed port and a discharge port are respectively provided on the side panels and the bottom panel of the box body, and a clamping assembly is provided on the box body above the feed port; the feed end of the feed conveyor belt is provided outside the box body, and the discharge end is provided inside the box body through the feed port and is located below the clamping assembly; the discharge end of the feed conveyor belt is provided with the cutting edge of the fixed tool facing upward, and is spaced apart from the discharge end of the feed conveyor belt; the rolling tool is rotatably provided inside the box body.

3. The waste textile identification and sorting device according to claim 2, characterized in that: The clamping assembly includes a fixed plate, a roller, a bearing, a movable block and a spring; the number of the fixed plates is 2, and the two fixed plates are arranged parallel to each other on the top plate of the box body, and a rectangular hole is provided on the fixed plate, and a guide rail is provided on the hole wall of the rectangular hole, and a slider is provided on the guide rail; the movable block is fixed on the slider, and a through hole is provided on the movable block; the bearing is arranged in the through hole of the movable block; connecting rods are formed on the two end surfaces of the roller, and the connecting rods are respectively fixed on the bearings inside the two movable blocks; one end of the spring is fixed on the upper hole wall of the rectangular hole, and the other end is fixed on the movable block.

4. The waste textile identification and sorting device according to claim 3, characterized in that: The rolling tool includes a rotating side plate, a rolling support column, a blade and a fixed column; the number of the rotating side plates is two, and the two rotating side plates are spaced apart and parallel to each other; the number of the blades is two, and they are arranged between the two rotating side plates, and their two ends are respectively connected to the rotating side plates; The two blades are arranged in parallel with the cutting edges in opposite directions; the fixing column is arranged between the two blades for fixing the blades; the number of the rolling support columns is 2, which are respectively arranged on the outside of the two rotating side plates and fixed to the box through bearings.

5. The waste textile identification and sorting device according to claim 4, characterized in that: The size of the cut pieces can be controlled by adjusting the rotation speed of the rolling cutter, the number and spacing of the blades, and the transport speed of the feed conveyor.

6. The waste textile identification and sorting device according to claim 1, characterized in that: A material blocking block is also provided inside the box.

7. A method for identifying and sorting waste textiles, characterized in that: Identify and sort waste textiles using the waste textile identification and sorting device according to any one of claims 1 to 6; The identification and sorting method comprises the following steps: S10, pre-treating the collected waste textiles; S20, cutting the pretreated waste textile into pieces of a preset size by a cutting unit; S30, breaking up the cloth pieces by a breaking up unit; S40, identifying the scattered cloth pieces through an identification unit; S50: Classify and collect the identified cloth pieces through a sorting unit.

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