Defect detection device for textile fabric processing

Abstract

The invention discloses a defect detection device for textile fabric processing, which comprises a mounting plate, a defect camera detector is used for shooting and detecting the front and back surfaces of passing cloth and recording the number of defects, and a plurality of dust collection holes are formed in one surface, opposite to the textile fabric, of a dust collection pipe in a penetrating manner. And a collecting box communicated with the hollow plate is installed on the rear side of the installing plate, a draught fan is installed on the collecting box, a detachable dust filtering net is installed on the collecting box, and the dust filtering net is located between the draught fan and the hollow plate. Efficient and accurate detection of the surface defects of the textile fabric is realized, and the production efficiency is improved; the automatic tensioning mechanism ensures that the fabric is stably conveyed, the tension is kept constant, and the detection precision is improved; the dust collection system effectively removes dust on the surface of the fabric, and detection interference is reduced; the mounting box is convenient to disassemble and convenient to overhaul and maintain; the whole device is high in intelligent degree and high in dynamic adjusting capacity, and the large-scale and high-efficiency production requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of textile fabric defect detection, and particularly to a defect detection device for textile fabric processing. Background Art

[0002] In the textile fabric processing industry, the quality inspection of fabrics is an important link to ensure that products meet standards and customer requirements. Traditional fabric defect detection methods mainly rely on manual visual inspection, which is not only inefficient but also easily affected by human factors, resulting in missed or misdetected defects. With the rapid development of the textile industry, the requirements for fabric quality are increasing day by day, and the traditional manual detection method has been difficult to meet the production needs of large scale and high efficiency.

[0003] In recent years, with the continuous progress of machine vision technology, the automatic defect detection technology based on image processing has gradually been applied to the field of textile fabric processing. Through high-precision imaging devices and image processing algorithms, rapid and accurate detection of surface defects of textile fabrics can be achieved. However, in practical applications, textile fabrics are easily affected by factors such as tension changes and dust pollution during transportation, thus affecting the accuracy and reliability of defect detection.

[0004] Therefore, it is of great practical significance to develop a defect detection device for textile fabric processing that can automatically adjust fabric tension, effectively remove dust on the fabric surface, and has high-precision defect detection capabilities. Summary of the Invention

[0005] The purpose of the present invention is to solve the above-mentioned technical problems and propose a defect detection device for textile fabric processing.

[0006] To achieve the above purpose, the present invention adopts the following technical scheme:

[0007] A defect detection device for textile fabric processing, including a mounting plate, on which a plurality of guide rollers are rotatably mounted, and a textile fabric is wound around the plurality of guide rollers. Part of the textile fabric is horizontally arranged. Installation boxes are installed on both the upper and lower sides of the horizontally arranged part of the textile fabric. A defect camera detector opposite to the textile fabric is installed on the installation box, and the defect camera detector takes pictures and detects the front and back sides of the passing fabric and records the number of defects. A hollow plate is installed on the front side of the mounting plate, and two communicating dust suction pipes are fixed on the hollow plate. A plurality of dust suction holes are provided through the side of each dust suction pipe opposite to the textile fabric. A collection box communicating with the hollow plate is installed on the rear side of the mounting plate. A fan is installed on the collection box, and a detachable dust filter net is installed on the collection box, and the dust filter net is located between the fan and the hollow plate.

[0008] Preferably, the installation box is installed on the installation plate through an installation mechanism. The installation mechanism includes an installation frame fixed on the installation plate. A mounting block is slidably connected inside the installation frame. The mounting block is fixedly connected to the installation box. A positioning hole is provided at the upper end of the mounting block. A positioning rod is slidably provided through the installation frame. The positioning rod is slidably connected in the positioning hole.

[0009] Preferably, an inverted U-shaped block is fixed on the installation frame. The positioning rod passes through the U-shaped block and is slidably connected thereto. A pulling block is fixed on the positioning rod. A slider is slidably connected inside the U-shaped block. The positioning rod passes through the slider and is fixedly connected thereto. A first spring is fixed to the upper end of the slider. The other end of the first spring is fixedly connected to the U-shaped block.

[0010] Preferably, a through groove is provided through the upper end of the collection box. A rectangular frame is slidably connected inside the through groove. The dust filter net is fixed inside the rectangular frame. A handle is fixed to the upper end of the rectangular frame.

[0011] Preferably, it further includes an automatic tensioning mechanism for tensioning the textile fabric. The automatic tensioning mechanism includes a guide groove provided through the installation plate. A moving frame is slidably connected inside the guide groove. A moving block is slidably connected inside the moving frame. A tensioning roller is rotatably installed on the moving block. The textile fabric is wound around the tensioning roller. A pressure sensor is fixed to the bottom of the moving frame. A regulating plate is fixed to the bottom of the pressure sensor. A driving member controlled by the pressure sensor is installed on the installation plate. The driving member drives the regulating plate to move.

[0012] Preferably, a guide rod is fixed inside the moving frame. The guide rod passes through the moving block and is slidably connected thereto. Second springs are fixed to both the upper end and the lower end of the moving block. The second springs are fixedly connected to the inner wall of the moving frame.

[0013] Preferably, the driving member includes a motor bracket installed on the installation plate. A motor is installed on the motor bracket. A lead screw is fixed to the output end of the motor. The lead screw passes through the regulating plate and is threadedly connected thereto. A support block is fixed on the installation plate. The lead screw is rotatably connected to the support block.

[0014] Preferably, it further includes a controller. The controller is connected to the pressure sensor and the motor.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. Improve the detection efficiency and accuracy: The present invention uses an automated defect camera detector to perform real-time shooting and detection on both the front and back sides of the textile fabric, which can quickly and accurately record the number and location information of defects on the fabric surface, greatly improving the detection efficiency and accuracy.

[0017] 2. Adaptive Fabric Tension Adjustment: The automatic tensioning mechanism in the device can monitor and adjust the tension of the textile fabric in real time, ensuring a stable tension of the fabric during the detection process and avoiding detection errors caused by tension changes.

[0018] 3. Effective Removal of Dust on the Fabric Surface: Through the negative pressure system formed by the fan and the suction pipe, the dust and impurities on the surface of the textile fabric can be removed in a timely manner, ensuring clear shooting of the fabric by the defect camera detector and further improving the accuracy of detection.

[0019] 4. Facilitation of Maintenance and Repair: The installation box is fixed on the installation plate through a detachable installation mechanism, which is convenient to be removed for maintenance and repair when needed, reducing the maintenance cost and time of the equipment.

[0020] 5. Intelligent Control and Management: Through the connection of the controller with components such as the pressure sensor and the motor, the intelligent control and management of the automatic tensioning mechanism are realized, enabling the device to automatically adjust according to the real-time change of the fabric tension and improving the automation level and intelligence degree of the equipment.

[0021] In summary, the present invention realizes the efficient and accurate detection of surface defects of textile fabrics, improving production efficiency; the automatic tensioning mechanism ensures stable fabric conveyance, maintains constant tension, and enhances detection accuracy; the dust suction system effectively removes dust on the fabric surface, reducing detection interference; the installation box has a convenient detachable design, facilitating maintenance and repair; the overall device has a high intelligence degree and strong dynamic adjustment ability, meeting the requirements of large-scale and high-efficiency production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a defect detection device for textile fabric processing proposed by the present invention;

[0023] Figure 2 is a rear view of a defect detection device for textile fabric processing proposed by the present invention;

[0024] Figure 3 is a schematic structural diagram of the installation mechanism in a defect detection device for textile fabric processing proposed by the present invention;

[0025] Figure 4 is a schematic structural diagram of the automatic tensioning mechanism in a defect detection device for textile fabric processing proposed by the present invention;

[0026] Figure 5 is a schematic structural diagram of the dust filter screen in a defect detection device for textile fabric processing proposed by the present invention.

[0027] In the figure: 1 mounting plate, 2 guide roller, 3 tension roller, 4 mounting box, 5 defect camera detector, 6 hollow plate, 7 dust suction pipe, 8 dust suction hole, 9 pulling block, 10 guide groove, 11 controller, 12 collection box, 13 fan, 14 mounting block, 15 positioning hole, 16 mounting frame, 17 positioning rod, 18 first spring, 19 slider, 20 U-shaped block, 21 moving frame, 22 guide rod, 23 second spring, 24 moving block, 25 adjusting plate, 26 pressure sensor, 27 motor frame, 28 motor, 29 lead screw, 30 support block, 31 through groove, 32 rectangular frame, 33 handle, 34 dust filter net. Detailed implementation manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] Refer to Figures 1-5 , a defect detection device for textile fabric processing, including a mounting plate 1, on which a plurality of guide rollers 2 are rotatably mounted. A textile fabric is wound around the plurality of guide rollers 2, and a part of the textile fabric is horizontally arranged. As Figure 1 shown, the other end of the textile fabric is wound by a winding roller.

[0030] Mounting boxes 4 are installed on both the upper and lower sides of the horizontally arranged part of the textile fabric. The mounting boxes 4 are installed on the mounting plate 1 through a mounting mechanism. The mounting mechanism includes a mounting frame 16 fixed on the mounting plate 1. A mounting block 14 is slidably connected in the mounting frame 16. The mounting block 14 is fixedly connected to the mounting box 4. A positioning hole 15 is provided at the upper end of the mounting block 14. A slidably arranged positioning rod 17 penetrates through the mounting frame 16 and is slidably connected in the positioning hole 15.

[0031] In order to ensure that the positioning rod 17 is stably inserted into the positioning hole 15, an inverted U-shaped block 20 is fixed on the mounting frame 16. The positioning rod 17 penetrates through the U-shaped block 20 and is slidably connected thereto. A pulling block 9 is fixed on the positioning rod 17. A slider 19 is slidably connected in the U-shaped block 20. The positioning rod 17 penetrates through the slider 19 and is fixedly connected thereto. A first spring 18 is fixed to the upper end of the slider 19. The other end of the first spring 18 is fixedly connected to the U-shaped block 20. The first spring 18 is in a compressed state. Therefore, a thrust can be generated on the slider 19, and then a thrust can be generated on the slider 19 and the positioning rod 17 to ensure that the positioning rod 17 is stably buckled in the positioning hole 15.

[0032] When it is necessary to remove the mounting box 4 and the defect camera detector 5 for maintenance, the staff pulls the pulling block 9 to drive the positioning rod 17 to move. The positioning rod 17 moves out of the positioning hole 15. At this time, the mounting block 14 is no longer locked, and thus it can be removed for maintenance of the mounting box 4 and the defect camera detector 5.

[0033] An installation box 4 is provided with a defect camera detector 5 opposite to the textile fabric. The defect camera detector 5 takes pictures and detects both the front and back sides of the passing fabric and records the number of defects. A hollow plate 6 is installed on the front side of the mounting plate 1. Two communicating dust suction pipes 7 are fixed on the hollow plate 6. A plurality of dust suction holes 8 are provided through one side of each dust suction pipe 7 opposite to the textile fabric. A collection box 12 communicating with the hollow plate 6 is installed on the back side of the mounting plate 1. A fan 13 is installed on the collection box 12. A detachable dust filter screen 34 is installed on the collection box 12. The dust filter screen 34 is located between the fan 13 and the hollow plate 6. When the fan 13 works, negative pressure can be generated at the dust suction holes 8, so that dust on the upper and lower surfaces of the fabric can be sucked away, ensuring the accuracy of the defect camera detector 5 in detecting the fabric and reducing the influence of dust on the defect camera detector 5.

[0034] The sucked dust enters the collection box 12 through the dust suction pipes 7 and the hollow plate 6. The dust can be filtered and collected through the dust filter screen 34. A through groove 31 is provided through the upper end of the collection box 12. A rectangular frame 32 is slidably connected in the through groove 31. The dust filter screen 34 is fixed in the rectangular frame 32. A handle 33 is fixed to the upper end of the rectangular frame 32. When it is necessary to clean the dust filter screen 34, the staff can pull the handle 33 upward, thereby driving the rectangular frame 32 and the dust filter screen 34 to move upward, and the dust filter screen 34 can be removed for cleaning.

[0035] As another embodiment of the present invention, it further includes an automatic tensioning mechanism for tensioning the textile fabric. The automatic tensioning mechanism includes a guide groove 10 penetrating through the mounting plate 1. A moving frame 21 is slidably connected in the guide groove 10. A moving block 24 is slidably connected in the moving frame 21. A tensioning roller 3 is rotatably installed on the moving block 24. The textile fabric is wound around the tensioning roller 3. A guide rod 22 is fixed in the moving frame 21. The guide rod 22 penetrates through the moving block 24 and is slidably connected therewith. Second springs 23 are fixed to both the upper end and the lower end of the moving block 24. The second springs 23 are fixed to the inner wall of the moving frame 21. During the conveying process of the textile fabric, the moving block 24 can be adjusted through the second springs 23, and then the tensioning roller 3 can be adjusted to achieve adaptive tensioning adjustment of the textile fabric.

[0036] A pressure sensor 26 is fixed to the bottom of the moving frame 21, and an adjusting plate 25 is fixed to the bottom of the pressure sensor 26. A driving member controlled by the pressure sensor 26 is installed on the mounting plate 1. The driving member drives the adjusting plate 25 to move. The driving member includes a motor bracket 27 installed on the mounting plate 1. A motor 28 is installed on the motor bracket 27. A lead screw 29 is fixed to the output end of the motor 28. The lead screw 29 passes through the adjusting plate 25 and is threadedly connected thereto. A support block 30 is fixed to the mounting plate 1. The lead screw 29 is rotatably connected to the support block 30. It further includes a controller 11, and the controller 11 is connected to the pressure sensor 26 and the motor 28. When the pressure value detected by the pressure sensor 26 is greater than or less than a set threshold, the pressure sensor 26 transmits a signal to the controller 11, and the controller 11 operates to drive the motor 28 to operate. The motor 28 operates to drive the lead screw 29 to rotate. The rotation of the lead screw 29 causes the adjusting plate 25 to move up or down, so as to adjust the pressure value set by the pressure sensor 26, ensuring that the tension roller 3 can be adjusted through the second spring 23, so as to ensure the stable conveying of the textile fabric and the accurate defect monitoring.

[0037] When the present invention is in use, first, the textile fabric is stably conveyed under the guidance of a plurality of guide rollers 2 and tension rollers 3, and the fabric in the horizontal part passes through the detection area between the upper and lower mounting boxes 4. The defect camera detector 5 in the mounting box 4 takes real-time pictures and detections of the front and back sides of the passing textile fabric, and records the number and position information of the defects on the fabric surface.

[0038] During the detection process, the automatic tensioning mechanism ensures that the fabric maintains an appropriate tension: when the fabric tension changes, the tension roller 3 slides in the moving frame 21 through the moving block 24, and compresses or releases the second spring 23 to achieve adaptive adjustment. The pressure sensor 26 monitors the pressure change of the moving frame 21 in real time. When the detected value exceeds the set threshold, the controller 11 starts the motor 28, drives the lead screw 29 to rotate, drives the adjusting plate 25 and the moving frame 21 to move up and down as a whole, so as to dynamically adjust the position of the tension roller 3 and maintain the fabric tension stable.

[0039] At the same time, after the fan 13 is started, a negative pressure is formed at the dust suction holes 8 through the hollow plate 6 and the dust suction pipe 7, and the dust and impurities on the fabric surface are sucked into the collection box 12. The dust filtering net 34 intercepts the dust, and the clean air is discharged through the fan 13. Regularly take out the rectangular frame 32 and the dust filtering net 34 through the handle 33 for cleaning to ensure the dust suction effect.

[0040] If it is necessary to repair the defect camera detector 5 or the mounting box 4, the staff pulls the pull block 9 to make the positioning rod 17 disengage from the positioning hole 15 of the mounting block 14, and then the whole mounting box 4 can be removed. After the repair is completed, reinstall it and make the positioning rod 17 reset and lock through the elastic force of the first spring 18.

[0041] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A defect detection device for textile fabric processing, comprising a mounting plate (1), characterized in that, A plurality of guide rollers (2) are rotatably installed on the mounting plate (1). A textile fabric is wound around the plurality of guide rollers (2). A part of the textile fabric is horizontally arranged. Mounting boxes (4) are installed on both the upper and lower sides of the horizontally arranged part of the textile fabric. A defect camera detector (5) opposite to the textile fabric is installed on the mounting box (4). The defect camera detector (5) photographs and detects both the front and back sides of the passing fabric and records the number of defects. A hollow plate (6) is installed on the front side of the mounting plate (1). Two communicating dust suction pipes (7) are fixed on the hollow plate (6). A plurality of dust suction holes (8) are provided through the side of each dust suction pipe (7) opposite to the textile fabric. A collection box (12) communicating with the hollow plate (6) is installed on the rear side of the mounting plate (1). A blower (13) is installed on the collection box (12). A detachable dust filter net (34) is installed on the collection box (12). The dust filter net (34) is located between the blower (13) and the hollow plate (6).

2. The defect detection device for textile fabric processing according to claim 1, wherein, The mounting box (4) is installed on the mounting plate (1) through a mounting mechanism. The mounting mechanism includes a mounting frame (16) fixed on the mounting plate (1). A mounting block (14) is slidably connected in the mounting frame (16). The mounting block (14) is fixedly connected with the mounting box (4). A positioning hole (15) is provided at the upper end of the mounting block (14). A positioning rod (17) is slidably arranged through the mounting frame (16). The positioning rod (17) is slidably connected in the positioning hole (15).

3. A defect detection device for textile fabric processing according to claim 1, characterized in that, A U-shaped block (20) arranged upside down is fixed on the mounting frame (16). The positioning rod (17) passes through the U-shaped block (20) and is slidably connected therewith. A pulling block (9) is fixed on the positioning rod (17). A sliding block (19) is slidably connected in the U-shaped block (20). The positioning rod (17) passes through the sliding block (19) and is fixedly connected therewith. A first spring (18) is fixed at the upper end of the sliding block (19). The other end of the first spring (18) is fixedly connected with the U-shaped block (20).

4. A defect detection device for textile fabric processing according to claim 1, characterized in that, A through groove (31) is provided through the upper end of the collection box (12). A rectangular frame (32) is slidably connected in the through groove (31). The dust filter net (34) is fixed in the rectangular frame (32). A handle (33) is fixed at the upper end of the rectangular frame (32).

5. The defect detection device for textile fabric processing according to claim 1, characterized in that, It further includes an automatic tensioning mechanism for tensioning the textile fabric. The automatic tensioning mechanism includes a guide groove (10) provided through the mounting plate (1). A moving frame (21) is slidably connected in the guide groove (10). A moving block (24) is slidably connected in the moving frame (21). A tensioning roller (3) is rotatably installed on the moving block (24). The textile fabric is wound around the tensioning roller (3). A pressure sensor (26) is fixed at the bottom of the moving frame (21). A regulating plate (25) is fixed at the bottom of the pressure sensor (26). A driving member controlled by the pressure sensor (26) is installed on the mounting plate (1). The driving member drives the regulating plate (25) to move.

6. The defect detection device for textile fabric processing according to claim 5, wherein, A guide rod (22) is fixed inside the moving frame (21). The guide rod (22) penetrates through the moving block (24) and is slidably connected thereto. Second springs (23) are fixed to both the upper end and the lower end of the moving block (24). The second springs (23) are fixedly connected to the inner wall of the moving frame (21).

7. The defect detection device for textile fabric processing according to claim 5, characterized in that, The driving member includes a motor bracket (27) installed on the mounting plate (1). A motor (28) is installed on the motor bracket (27). A lead screw (29) is fixed to the output end of the motor (28). The lead screw (29) penetrates through the adjusting plate (25) and is threadedly connected thereto. A support block (30) is fixed to the mounting plate (1). The lead screw (29) is rotatably connected to the support block (30).

8. The defect detection device for textile fabric processing according to claim 7, wherein, It further includes a controller (11). The controller (11) is connected to the pressure sensor (26) and the motor (28).

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