Automatic cloth cover defect detection device for laboratory

Abstract

The utility model relates to an automatic cloth cover defect detection device for a laboratory, which comprises a workbench, a fixed pressing block seat, a sliding pressing block seat, a linear driving module, an industrial camera, a driving roller group and an irradiation light source, the fixed pressing block base and the sliding pressing block base are connected with the pressing blocks through compression springs, the sliding pressing block base drives the pressing block on one side to move left and right, the driving roller set provides driving force for cloth to be detected to move from front to back, and the two sides of the cloth to be detected in the width direction are arranged between the pressing blocks on the corresponding sides and the workbench respectively. The linear driving module is connected with the industrial camera which is electrically connected with the control computer. The cloth fixing device is simple in structure and good in universality, cloth is not hindered from moving backwards while being fixed, and the distance between the left pressing block and the right pressing block is adjustable so that the cloth fixing device can adapt to detection cloth with different breadths.

Description

Technical Field

[0001] The utility model relates to the technical field of textile detection, in particular to an automatic detection device for cloth surface defects used in a laboratory. Background Art

[0002] In the textile industry, fabric defect detection is an important part of quality control. Traditional laboratories mainly rely on manual visual inspection for fabric defect detection, which is not only inefficient but also easily affected by human factors, resulting in low accuracy and reproducibility of test results. Although there are large fabric inspection machines on the market, which are set behind looms and used for online inspection of continuous fabrics produced in batches, testing laboratories usually do not have such large samples, and the width of the fabrics to be tested varies, so they are not suitable for laboratories. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned shortcomings and provides an automatic detection device for cloth defects for laboratory use. The device has a simple structure and good versatility. A pressure block with a compression spring is provided to press the cloth surface, thereby fixing the cloth without hindering the cloth from moving backward and ensuring the flatness of the cloth surface. The sliding pressure block seat drives the pressure block on one side to move left and right, and adjusts the distance between the left and right pressure blocks to adapt to the detection of cloths with different widths.

[0004] The purpose of the utility model is achieved in this way:

[0005] A laboratory-use automatic detection device for fabric defects comprises a workbench, a fixed pressure block seat, a sliding pressure block seat, a linear drive module, an industrial camera, a driving roller group and an irradiation light source. The fixed pressure block seat and the sliding pressure block seat are symmetrically arranged on the workbench, the fixed pressure block seat is fixed on the workbench, and the sliding pressure block seat is slidably arranged on the workbench. The fixed pressure block seat and the sliding pressure block seat are both connected to the pressure blocks through compression springs, and the sliding pressure block seat drives the pressure blocks on one side to move left and right. The cloth to be detected is driven from front to back by the driving roller group. The two sides of the cloth to be detected in the width direction are respectively arranged between the pressure blocks on the corresponding sides and the workbench. The linear drive module is connected to the industrial camera, and the industrial camera is electrically connected to a control computer.

[0006] Preferably, the sliding pressure block seat is driven by a screw motor to move left and right, the sliding pressure block seat is connected to the screw motor through a slider, the screw motor is fixedly arranged under the workbench, the slider passes through the workbench and is sleeved on the screw of the screw motor, and the workbench is provided with a sliding groove corresponding to the slider.

[0007] Preferably, the screw motor is arranged at the center position of the length direction of the workbench, and guide rails and guide grooves are provided in parallel on the front and rear sides of the screw motor. The guide rails are fixedly arranged below the sliding pressure block seat, and the guide grooves are fixed below the workbench. The guide rails pass through the workbench and slide in the guide grooves.

[0008] Preferably, a plurality of compression springs are arranged at intervals in the length direction of the fixed pressure block seat and the sliding pressure block seat, and the pressure block is always in contact with the fabric to be detected.

[0009] Preferably, the linear drive module support is arranged above the workbench, the linear drive module drives the industrial camera to reciprocate linearly along the width direction of the cloth, and the irradiation light source arranged above the cloth provides light for the cloth to be inspected.

[0010] Preferably, the workbench is provided with a transmission light source corresponding to the industrial camera, and the transmission light source is embedded in the workbench and located directly below the industrial camera.

[0011] Preferably, the driving roller group is arranged at the rear side of the workbench in the length direction, and a cloth collecting box is provided at the rear side of the driving roller group.

[0012] The beneficial effects of the utility model are:

[0013] The structure is simple, the volume is small, and the operation is convenient, which meets the needs of the testing laboratory. By setting a pressure block with a compression spring to press the cloth surface, the cloth is fixed without hindering the cloth from moving backward, ensuring the flatness of the cloth surface. The sliding pressure block seat drives the pressure block on one side to move left and right, and adjusts the distance between the left and right pressure blocks to adapt to the testing cloths of different widths.

[0014] It can realize automatic, rapid and accurate detection of fabric defects with good reproducibility, effectively improving detection efficiency and accuracy;

[0015] A high degree of automation reduces labor costs, which is a way to reduce costs and increase efficiency in the long run. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 for Figure 1 Right side view.

[0018] Figure 3 for Figure 2 A partial enlarged view of .

[0019] Figure 4 A top view of the workbench.

[0020] Wherein: workbench 1; fixed pressure block seat 2; sliding pressure block seat 3; linear drive module 4; industrial camera 5; drive roller group 6; irradiation light source 7; compression spring 8; pressure block 9; cloth to be tested 10; control computer 11; screw motor 12; slider 13; guide rail 14; guide groove 15; transmission light source 16; cloth collection box 17. DETAILED DESCRIPTION

[0021] See also Figure 1-4 The utility model relates to an automatic detection device for fabric defects for laboratory use, comprising a workbench 1, a fixed pressure block seat 2, a sliding pressure block seat 3, a linear drive module 4, an industrial camera 5, a driving roller group 6 and an irradiation light source 7. The fixed pressure block seat 2 and the sliding pressure block seat 3 are symmetrically arranged on the workbench 1, and the driving roller group 6 is arranged at the rear side of the length direction of the workbench 1 to provide driving force for the fabric to be detected. The fixed pressure block seat 2 is fixed on the workbench 1, and the sliding pressure block seat 3 is slidably arranged on the workbench 1. The fixed pressure block seat 2 and the sliding pressure block seat 3 are both connected to the pressure block 9 through a compression spring 8. The sliding pressure block seat 3 drives the pressure block on one side to move left and right, and adjusts the distance between the left and right pressure blocks 9 to adapt to the detection of fabrics with different widths. The material is provided with a plurality of compression springs 8 at intervals in the length direction of the fixed pressure block seat 2 and the sliding pressure block seat 3. The fabric 10 to be detected is spread on the workbench 1. The two sides in the width direction of the fabric 10 to be detected are respectively arranged between the pressure blocks 9 on the corresponding sides and the workbench 1. The compression springs 8 ensure that the pressure blocks 9 are always in contact with the fabric 10 to be detected, and the fabric is fixed without hindering the fabric from moving backward, thereby ensuring that the fabric surface is flat. The linear drive module 4 is supported and arranged above the workbench 1. The linear drive module 4 is connected to the industrial camera 5. The industrial camera 5 is electrically connected to the control computer 11. The linear drive module 4 drives the industrial camera 5 to reciprocate in a straight line along the width direction of the fabric. The irradiation light source 7 arranged above the fabric provides light for the fabric 10 to be detected.

[0022] The sliding pressure block seat 3 is driven by a screw motor 12 to move left and right. The sliding pressure block seat 3 is connected to the screw motor 12 through a slider 13. The screw motor 12 is fixedly arranged below the workbench 1. The slider 13 passes through the workbench 1 and is sleeved on the screw of the screw motor 12. The workbench 1 is provided with a sliding groove corresponding to the slider 13.

[0023] In order to improve the stability of the movement of the sliding pressure block seat 3, the screw motor 12 is arranged at the center position of the length direction of the workbench 1, and guide rails 14 and guide grooves 15 are provided in parallel on the front and rear sides of the screw motor 2. The guide rails 14 are fixedly arranged below the sliding pressure block seat 3, and the guide grooves 15 are fixed below the workbench 1. The guide rails 14 pass through the workbench 1 and slide in the guide grooves 15.

[0024] The workbench 1 is provided with a transmission light source 16 corresponding to the industrial camera 5. The transmission light source 16 is embedded in the workbench 1 and is located directly below the industrial camera 5. The transmission light source 16 provides additional illumination for the fabric to be inspected, thereby improving the inspection accuracy.

[0025] The driving roller group 6 includes rollers arranged in an upper and lower manner, one of which is an active roller and the other is a driven roller. The active roller is driven by a driving motor (this structure is a prior art and will not be described here, and the driving motor is not drawn). The cloth to be detected is pulled between the two rollers and the friction force is used to pull the cloth to be detected to move backward.

[0026] The industrial camera 5 is electrically connected to the control computer 11. The industrial camera adopts a CCD camera. The industrial camera samples the cloth surface image at a high frequency and transmits the image data to the control computer through the image acquisition card. The image processing and analysis software processes, understands, and recognizes the obtained cloth surface image to determine whether there are defects on the current cloth surface. When defects are detected, the control computer records the location, size, and type of the defects to facilitate the inspection personnel to prepare the inspection report.

[0027] A cloth collecting box 17 is provided at the rear side of the driving roller shaft for receiving the cloth after detection.

[0028] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A laboratory cloth defect automatic detection device, characterized by: It includes a workbench, a fixed pressure block seat, a sliding pressure block seat, a linear drive module, an industrial camera, a driving roller group and an irradiation light source. The fixed pressure block seat and the sliding pressure block seat are symmetrically arranged on the workbench, the fixed pressure block seat is fixed on the workbench, and the sliding pressure block seat is slidably arranged on the workbench. The fixed pressure block seat and the sliding pressure block seat are both connected to the pressure blocks through compression springs. The sliding pressure block seat drives the pressure blocks on one side to move left and right. The cloth to be tested is driven from front to back by the driving roller group. The two sides of the cloth to be tested in the width direction are respectively arranged between the pressure blocks on the corresponding sides and the workbench. The linear drive module is connected to the industrial camera, and the industrial camera is electrically connected to the control computer.

2. The automatic laboratory fabric defect detection device according to claim 1, characterized in that: The sliding pressure block seat is driven by a screw motor to move left and right. The sliding pressure block seat is connected to the screw motor through a slider. The screw motor is fixedly arranged under the workbench. The slider passes through the workbench and is sleeved on the screw of the screw motor. The workbench is provided with a sliding groove corresponding to the slider.

3. The automatic laboratory fabric defect detection device according to claim 2, characterized in that: The screw motor is arranged at the center position of the length direction of the workbench, and guide rails and guide grooves are arranged in parallel on the front and rear sides of the screw motor. The guide rails are fixedly arranged below the sliding pressure block seat, and the guide grooves are fixed below the workbench. The guide rails pass through the workbench and slide in the guide grooves.

4. The automatic laboratory fabric defect detection device according to claim 1, characterized in that: A plurality of compression springs are arranged at intervals in the length direction of the fixed pressing block seat and the sliding pressing block seat, and the pressing block is always in contact with the fabric to be detected.

5. The automatic laboratory fabric defect detection device according to claim 1 is characterized in that: The linear drive module support is arranged above the workbench. The linear drive module drives the industrial camera to move back and forth in a linear direction along the width direction of the cloth. The irradiation light source arranged above the cloth provides light for the cloth to be inspected.

6. The automatic laboratory fabric defect detection device according to claim 1, characterized in that: The workbench is provided with a transmission light source corresponding to the industrial camera. The transmission light source is embedded in the workbench and is located directly below the industrial camera.

7. The automatic laboratory fabric defect detection device according to claim 1 is characterized by: The driving roller group is arranged at the rear side of the workbench in the length direction, and a cloth collecting box is arranged at the rear side of the driving roller group.

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