An intelligent cloth inspection system

Abstract

The present invention discloses an intelligent cloth inspection system, comprising an initial point, an end point, a cloth collecting component opposite to the end point, a controller, a processor, and a cloth loosening component, a first unfolding component, an image acquisition component, and a second unfolding component arranged successively below the initial point, and a first photoelectric sensor arranged between the cloth loosening component and the first unfolding component, and a second photoelectric sensor arranged below the second unfolding component; when working, the cloth placed at the initial point falls vertically by its own gravity, the first photoelectric sensor is used to realize cloth length measurement, the first unfolding component, the image acquisition component, and the second unfolding component all make way for the cloth, and move toward the cloth after the cloth passes the second photoelectric sensor until it contacts, and then the image acquisition component collects image data of the cloth and sends it to the processor, the processor performs defect recognition, and the controller is used to realize automatic control of the system. The present invention realizes automatic feeding operation and improves the accuracy of length measurement.

Description

Technical Field

[0001] The invention relates to the technical field of fabric image processing, in particular to an intelligent fabric inspection system. Background Art

[0002] Fabric inspection is one of the finishing processes of grey fabrics. The appearance quality of grey fabrics is inspected piece by piece according to the national or industry standards for grey fabric inspection. The yarn defects and weaving defects on the fabric are visually inspected and scored, and corresponding marks are made to indicate the defects that can be repaired and those that cannot be repaired, the information of cumulative downgrades and one-time downgrades, and timely notification and follow-up inspection of continuous and sudden defects. With the development of science and technology, the current fabric inspection operation has developed from manual inspection to machine inspection. Fabric inspection machines are common fabric inspection equipment. Fabric inspection machines are equipped with length measuring devices, and can also review the length of sewing materials.

[0003] However, the existing cloth inspection machines, whose loading operation (from the cloth to the image acquisition position) is mostly done manually, have a low degree of automation, resulting in reduced production efficiency; and when encountering elastic or knitted fabrics, the length measurement of the cloth inspection machine is often inaccurate. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent cloth inspection system to realize automatic material feeding operation and improve the accuracy of length measurement.

[0005] In order to achieve the above object, the solution of the present invention is:

[0006] An intelligent cloth inspection system comprises an initial point for placing cloth to be inspected, an end point for placing inspected cloth, a cloth collecting component arranged opposite to the end point, a controller, a processor, and a cloth loosening component, a first unfolding component, an image acquisition component and a second unfolding component arranged successively below the initial point, and a first photoelectric sensor arranged between the cloth loosening component and the first unfolding component, and a second photoelectric sensor arranged below the second unfolding component; when working, the cloth placed at the initial point falls vertically by its own gravity, the first photoelectric sensor is used to realize cloth length measurement, the first unfolding component, the image acquisition component and the second unfolding component all make way for the cloth, and move towards the cloth after the cloth passes the second photoelectric sensor until they contact, then the image acquisition component collects image data of the cloth and sends it to the processor, the processor receives the image data and performs defect recognition, and the controller is used to realize automatic control of the entire system.

[0007] The cloth collecting assembly includes two cloth collecting shafts arranged in parallel; the cloth releasing assembly includes two cloth releasing shafts arranged in parallel and a length measuring encoder arranged on one of the cloth releasing shafts; the first unfolding assembly includes at least two first unfolding shafts that can be moved laterally, and the first unfolding shafts are arranged in sequence from top to bottom and are separately arranged on both sides below the initial point; the image acquisition assembly includes at least one group of image collectors and image sensors that can be moved laterally, and the image collectors collect image data of the cloth passing through the image acquisition assembly through the image sensors and send them to the processor; the second unfolding assembly includes at least two second unfolding shafts that can be moved laterally, and the second unfolding shafts are arranged in sequence from top to bottom and are separately arranged on both sides below the initial point; when working, the first unfolding shaft, the image sensor, and the second unfolding shaft move laterally to both sides below the initial point to make way for the vertical fall of the cloth, and when the cloth falls to the height of the second photoelectric sensor, they move laterally in the direction of the cloth until they contact the cloth, and the first photoelectric sensor turns on the length measuring encoder to start length measurement when detecting that the cloth passes, and ends length measurement when no cloth passes.

[0008] The image acquisition component includes two groups of image collectors and image sensors, which are respectively used to acquire image data on both sides of the cloth.

[0009] The image acquisition component also includes a light shielding plate that can be moved laterally. The light shielding plate is arranged opposite to the image sensor and is respectively located on both sides below the initial point.

[0010] The image collector is a CIS collector, and the image sensor is a CIS sensor.

[0011] The cloth collecting assembly is arranged below the end point.

[0012] The intelligent cloth inspection system further comprises a clamping device for clamping and conveying the cloth from below the second unfolding component to the end point.

[0013] The cloth collecting assembly comprises two cloth collecting shafts arranged in parallel, wherein at least one of the cloth collecting shafts is arranged to be movable laterally to allow the clamping device to pass between the two cloth collecting shafts to reach the end point.

[0014] After adopting the above technical scheme, the structural design of the present invention utilizes the vertical fall of the cloth to loosen the cloth, thereby realizing automatic loading of the cloth from the initial point to the image acquisition position, reducing manual workload, improving the degree of automation of the system, and improving production efficiency; at the same time, the vertical fall of the cloth to loosen the cloth will not apply tension to the cloth itself, avoiding the cloth being pulled by the rope when the cloth is elastic and affecting the accuracy of the length measurement, thereby ensuring the accuracy of the system's cloth length measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0016] Figure 2 It is a schematic diagram of the working process of a specific embodiment of the present invention;

[0017] Explanation of the accompanying drawings: initial point 1; end point 2; controller 3; processor 4; first photoelectric sensor 5; second photoelectric sensor 6; cloth collecting shaft 7; cloth loosening shaft 8; length encoder 9; first unfolding shaft 10; image collector 11; image sensor 12; second unfolding shaft 13; clamp 14; shading plate 15; cloth 16. DETAILED DESCRIPTION

[0018] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0019] The present invention is an intelligent cloth inspection system, comprising an initial point 1 for placing cloth to be inspected, an end point 2 for placing inspected cloth, a cloth collecting component arranged opposite to the end point 2, a controller 3, a processor 4, and a cloth loosening component, a first unfolding component, an image acquisition component and a second unfolding component arranged successively below the initial point 1, a first photoelectric sensor 5 arranged between the cloth loosening component and the first unfolding component, and a second photoelectric sensor 6 arranged below the second unfolding component.

[0020] During operation, the cloth placed at the initial point 1 falls vertically due to its own gravity. The first photoelectric sensor 5 is used to measure the length of the cloth. The first unfolding component, the image acquisition component and the second unfolding component all make way for the cloth and move towards the cloth until they touch the cloth after the cloth passes through the second photoelectric sensor 6. Then the image acquisition component collects the image data of the cloth and sends it to the processor 4. The processor 4 receives the image data and identifies defects. The controller 3 is used to realize automatic control of the entire system.

[0021] refer to Figure 1 Shown is a specific embodiment of the present invention.

[0022] The cloth collecting component includes two cloth collecting shafts 7 arranged in parallel; the cloth loosening component includes two cloth loosening shafts 8 arranged in parallel and a length encoder 9 arranged on one of the cloth loosening shafts 8; the first unfolding component includes at least two first unfolding shafts 10 that can be moved laterally, and the first unfolding shafts 10 are arranged in sequence from top to bottom and are separately arranged on both sides below the initial point 1; the image acquisition component includes at least one group of image collectors 11 and a laterally movable image sensor 12, and the image collector 11 collects image data of the cloth passing through the image acquisition component through the image sensor 12 and sends it to the processor 4; the second unfolding component includes at least two second unfolding shafts 13 that can be moved laterally, and the second unfolding shafts 13 are arranged in sequence from top to bottom and are separately arranged on both sides below the initial point 1. Before putting the cloth on, the first unfolding axis 10, the image sensor 12, and the second unfolding axis 13 move laterally to the two sides below the initial point 1 to allow for the vertical fall of the cloth, and when the cloth falls to the height of the second photoelectric sensor 6, they move laterally in the direction of the cloth until they touch the cloth. The first photoelectric sensor 5 turns on the length encoder 9 to start measuring the length when it detects the passage of the cloth, and ends the length measuring when it detects no cloth passing.

[0023] The present invention also includes a clamping device 14 for clamping and delivering the cloth from below the second unfolding assembly to the end point 2. Correspondingly, at least one of the cloth collecting shafts 7 is arranged to be movable laterally to allow the clamping device 14 to pass between the two cloth collecting shafts 7 to reach the end point 2.

[0024] In this embodiment, the image acquisition component includes two groups of image collectors 11 and image sensors 12, which are respectively used to collect image data of both sides of the cloth, so as to complete the defect identification of both sides of the cloth at one time and improve the efficiency of cloth inspection.

[0025] The image acquisition component further includes a laterally movable shading plate 15, which is arranged opposite to the image sensor 12 and is respectively located on both sides below the initial point 1. The shading plate 15 can prevent the image acquired by the image sensor 12 from being interfered by external light sources and failing to acquire standard color values.

[0026] The image collector 11 is a CIS collector, and the image sensor 12 is a CIS sensor, which can reduce the weight of the equipment and reduce the production cost of the product.

[0027] The cloth collecting assembly is arranged below the end point 2, thereby optimizing the component layout of the product and reducing the product volume and floor space.

[0028] In the present invention, the initial point 1 and the end point 2 can be a winding or fixing structure such as a rotating shaft, a bracket, etc. for fixing the cloth. In this embodiment, the rotating shaft is used as an example.

[0029] refer to Figure 2As shown, the working process of the present invention is as follows: after the cloth 16 to be tested is placed at the initial point 1, the end of the cloth 16 falls vertically due to its own gravity, and the cloth loosening shaft 8 rotates; after passing between the two cloth loosening shafts 8, the first photoelectric sensor 5 detects the cloth 16, thereby starting the length encoder 9 to start length measurement; in normal state, the first unfolding shaft 10, the image sensor 12, and the second unfolding shaft 13 are all located at the side position below the initial point 1 to allow for the vertical fall of the cloth 16; when the end of the cloth 16 passes through the second photoelectric sensor 6, the first unfolding shaft 10, the image sensor 12, and the second unfolding shaft 13 are all moved laterally toward the cloth 16 until they contact; the image collector 11 collects the image data of the cloth 16 passing through the image acquisition component through the image sensor 12 and sends it to the processor 4, the processor 4 receives the image data of the image collector 11 and performs defect recognition, and at the same time, the clamp 14 clamps the end of the cloth 16 and sends it to the end point 2, and in the process of the clamp 14 feeding the cloth, the cloth receiving shaft 7 first moves to the side to allow the clamp 14 to pass.

[0030] Through the above scheme, the structural design of the present invention utilizes the vertical fall of the cloth to loosen the cloth, thereby realizing automatic loading of the cloth from the initial point 1 to the image acquisition position, reducing manual workload, improving the degree of automation of the system, and improving production efficiency; at the same time, the vertical fall of the cloth to loosen the cloth will not apply tension to the cloth itself, avoiding the cloth being pulled by the rope when the cloth is elastic and affecting the accuracy of the length measurement, thereby ensuring the accuracy of the system's cloth length measurement.

[0031] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made thereto by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. An intelligent cloth inspection system, characterized in that: It includes an initial point for placing the cloth to be inspected, an end point for placing the inspected cloth, a cloth collecting component arranged opposite to the end point, a controller, a processor, and a cloth loosening component, a first unfolding component, an image acquisition component and a second unfolding component arranged successively below the initial point, a first photoelectric sensor arranged between the cloth loosening component and the first unfolding component, and a second photoelectric sensor arranged below the second unfolding component; During operation, the cloth placed at the initial point falls vertically by its own gravity, the first photoelectric sensor is used to measure the length of the cloth, the first unfolding component, the image acquisition component and the second unfolding component all make way for the cloth, and move toward the cloth until it contacts the cloth after the cloth passes through the second photoelectric sensor, then the image acquisition component collects the image data of the cloth and sends it to the processor, the processor receives the image data and identifies defects, and the controller is used to realize automatic control of the entire system. The cloth collecting assembly comprises two cloth collecting shafts arranged in parallel; The cloth loosening assembly comprises two cloth loosening shafts arranged in parallel and a length measuring encoder arranged on one of the cloth loosening shafts; The first deployment assembly includes at least two first deployment shafts that can move laterally, and the first deployment shafts are arranged in sequence from top to bottom and are separately set on both sides below the initial point; The image acquisition component includes at least one group of image collectors and a laterally movable image sensor, wherein the image collectors collect image data of the cloth passing through the image acquisition component through the image sensor and send the image data to the processor; The second deployment assembly includes at least two second deployment shafts that can move laterally, and the second deployment shafts are arranged in sequence from top to bottom and are separately set on both sides below the initial point; When working, the first unfolding axis, the image sensor, and the second unfolding axis move laterally to the two sides below the initial point to allow the cloth to fall vertically, and when the cloth falls to the height of the second photoelectric sensor, they move laterally in the direction of the cloth until they touch the cloth. When the first photoelectric sensor detects that the cloth passes, it turns on the length encoder to start length measurement, and stops length measurement when no cloth is detected passing. The image acquisition component includes two groups of image collectors and image sensors, which are used to collect image data on both sides of the cloth. The image acquisition component further includes a shading plate that can be moved laterally, the shading plate is arranged opposite to the image sensor and is respectively located on both sides below the initial point. The image collector is a CIS collector, and the image sensor is a CIS sensor. The cloth collecting assembly is arranged below the end point.

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