Cloth cover defect detection device

Abstract

The invention relates to the technical field of cloth cover detection equipment, in particular to a cloth cover defect detection device. Comprising a machine body, a placing frame arranged on the machine body and used for placing rolled cloth, an inclined lighting plate, a supporting frame arranged at the top of the machine body, a transverse moving platform arranged in the supporting frame, a first sliding block arranged on the transverse moving platform, a longitudinal driving device arranged on the first sliding block, a connecting block arranged at the bottom of the longitudinal driving device, a winding drum and a label plate arranged at the bottom of the connecting block. When the camera detects that the cloth cover has flaws, labels on label plates of the transverse moving platform and the longitudinal driving device are transferred to flaw spots of the rolled cloth, automatic labeling of the flaw spots of the rolled cloth can be achieved, manual labeling is not needed, and the working efficiency is improved; the technical problem that the detection efficiency is low due to the fact that manual marking is needed in the existing batching detection process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cloth surface detection equipment, and in particular to a cloth surface defect detection device. Background Art

[0002] The cloth inspection machine is a device used to inspect cloth. The existing cloth inspection machine structure is such as the new cloth inspection machine disclosed in Chinese Patent Publication No. CN112342768A, which includes an automatic roll-feeding device, a cloth inspection platform, an automatic conveying device, a roll-up device and a code meter. The automatic roll-feeding device, the cloth inspection platform, the automatic conveying device and the roll-up device are arranged in sequence, and the cloth inspection platform is tilted. The automatic conveying device includes a conveying motor and a conveying belt. The conveying belt is sleeved on the output shaft of the conveying motor. The conveying belt is located below the cloth inspection platform and the roll-up device. The code meter is set corresponding to the roll-up device and is located above the conveying belt. It discloses an existing general structure of the cloth inspection machine, but the existing cloth inspection machine is usually manually operated in front of the cloth inspection platform. When a defect is detected, a sticker is manually pasted to mark it, and then a mark is made on the outside of the rolled cloth, resulting in low manual inspection efficiency. Summary of the invention

[0003] Therefore, in view of the above-mentioned problems, the present invention proposes a cloth surface defect detection device, which solves the technical problem that manual marking is required in the existing cloth roll detection process, resulting in low detection efficiency.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A fabric defect detection device comprises a machine body, a placement frame arranged on the machine body and used for placing rolled fabric, an oblique lighting plate arranged on the top of the machine body, a first roller arranged on the top of the machine body and located above the oblique lighting plate, a support frame arranged on the top of the frame, a first camera arranged in the support frame, a second roller arranged in the middle of the machine body and located at the bottom of the oblique lighting plate, a cloth guide wheel arranged on the machine body and located above the second roller, a cloth guide frame arranged at intervals in front of the machine body, and a third roller and a fourth roller arranged on the top of the cloth guide frame; It also includes a transverse platform arranged in the support frame, a first slider arranged on the transverse platform, a longitudinal drive device arranged on the first slider, a connecting block arranged at the bottom of the longitudinal drive device, a reel arranged at the bottom of the connecting block and used for rolling up the label, a label plate arranged at the bottom of the connecting block, and a recovery roller arranged in the middle of the connecting block and used for recovering the label.

[0005] Furthermore, an RFID label is rolled up in the reel, and the RFID label includes coated paper, a PET film adhered to the bottom surface of the coated paper, an embedded aluminum antenna adhered to the bottom surface of the PET film, a chip adhered to the bottom surface of the PET film, and a release paper glued to the bottom surface of the PET film.

[0006] Furthermore, a first guide frame is provided above the placement frame, a second guide frame is provided below the first roller, a first metal detector is provided on the body near the first guide frame, and a second metal detector is provided on the body near the second guide frame.

[0007] Furthermore, the machine body is provided with a clamping device for clamping broken needles between the first guide frame and the second guide frame, and the clamping device includes a first screw platform arranged on a lateral side of the machine body, a second screw platform arranged at an interval from the first screw platform, a first driving mechanism for driving the first screw platform and the second screw platform to move synchronously, a second slider arranged on the first screw platform, a mechanical claw arranged above the second slider, a second driving mechanism for driving the mechanical claw to move forward and backward, a third slider arranged on the second screw platform, an electromagnet arranged above the third slider, and a third driving mechanism for driving the electromagnet to move forward and backward.

[0008] Furthermore, the first screw platform and the second screw platform have the same structure, and the first driving mechanism includes a first synchronous pulley connected to the first screw platform, a second synchronous pulley connected to the second screw platform, a belt connected to the first synchronous pulley and the second synchronous pulley, and a first motor for driving the first synchronous pulley to rotate.

[0009] Furthermore, the mechanical claw includes a connecting frame arranged on a second driving mechanism, a first rod rotatably arranged on one side of the connecting frame, a first V-shaped rod hinged to the first rod, and a second rod and a second V-shaped rod symmetrically arranged with the first rod and the first V-shaped rod, a push block is provided between the first V-shaped rod and the second V-shaped rod, and a drive cylinder for driving the push block to move longitudinally is provided in the connecting frame.

[0010] By adopting the above technical solution, the beneficial effects of the present invention are: The present cloth defect detection device, wherein when the first camera detects that the cloth surface has defects, the transverse movement platform drives the first slider to move to the transverse coordinate of the defect point, and at the same time the longitudinal driving device drives the connecting block to move downward, and one end of the label on the label plate will be glued to the roll cloth after moving downward, and the label will be transferred to the defect point of the roll cloth, so that the defect point of the roll cloth can be automatically labeled without manual pasting, thereby improving work efficiency, and in conjunction with the RFID tag, the built-in chip of the RFID tag can be quickly read by the tag reader, so as to check the defective roll cloth, and there is no need to make a separate mark on the outside of the roll cloth, which is convenient for managing the roll cloth, and solves the technical problem of low detection efficiency caused by manual marking in the existing roll cloth detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention.

[0012] Figure 2 The present invention Figure 1 Schematic diagram of the CC cross-section structure.

[0013] Figure 3 It is a plan view schematic diagram of the label plate structure of the present invention.

[0014] Figure 4 It is a right side schematic diagram of the label plate structure of the present invention.

[0015] Figure 5 It is a schematic diagram of the structure of the label plate of the present invention.

[0016] Figure 6 It is a schematic diagram of the cross-sectional structure of the RFID label of the present invention.

[0017] Figure 7 It is a schematic diagram of the structure of the clamping device of the present invention in use state.

[0018] Figure 8 It is a schematic top view of the local structure of the clamping device of the present invention.

[0019] Fig. 9 It is a schematic top view of the second driving mechanism structure of the present invention.

[0020] Fig.10 It is a right side schematic diagram of the second driving mechanism structure of the present invention.

[0021] Fig.11 It is a partial structural schematic diagram of the second driving mechanism of the present invention.

[0022] Fig.12 It is a structural schematic diagram of a partial explosion state of the second driving mechanism of the present invention.

[0023] Markings in the figure: 1. Placement rack; 2. Oblique lighting plate; 3. First roller; 4. Support frame; 5. First camera; 6. Second roller; 7. Cloth guide wheel; 8. Cloth guide frame; 9. Third roller; 10. Fourth roller; 11. Transverse platform; 12. First slider; 13. Longitudinal drive device; 14. Connecting block; 15. Reel; 16. Label plate; 17. Recycling roller; 18. RFID label; 19. First guide frame; 20. Second guide frame; 21. First metal detector; 22. Second metal detector; 23. Clamping device; 181, coated paper; 182, PET film; 183, embedded aluminum antenna; 184, chip; 185, release paper; 31. First screw platform; 32. Second screw platform; 33. First drive mechanism; 34. Second slider; 35. Mechanical claw; 36. Second drive mechanism; 37. Third slider; 38. Electromagnet; 39. Third drive mechanism; 331, first synchronous pulley; 332, second synchronous pulley; 333, belt; 334, first motor; 351, connecting frame; 352, first rod; 353, first V-shaped rod; 354, second rod; 355, second V-shaped rod; 356, push block; 357, drive cylinder; 601, connecting frame; 602, rotating shaft; 603, first connecting rod; 604, first gear; 605, second gear; 606, second connecting rod; 607, guide plate; 608, fourth slider; 609, moving plate; 610, rotating plate; 611, hinge; 612, connecting rod; 613, spring; 614, extension plate; 615, first limit block; 616, third gear; 617, fourth gear; 618, fixing plate; 619, second limit block; 620, second motor; 621, chain; 622, second camera; 623, collecting basket. DETAILED DESCRIPTION

[0024] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0025] refer to Figures 1 to 12 The present embodiment provides a fabric defect detection device, comprising a machine body, a placement rack 1 disposed on the machine body and used for placing rolled cloth, an oblique lighting plate 2 disposed on the top of the machine body, a first roller 3 disposed on the top of the machine body and located above the oblique lighting plate 2, a support frame 4 disposed on the top of the frame, a first camera 5 disposed in the support frame 4, a second roller 6 disposed in the middle of the machine body and located at the bottom of the oblique lighting plate 2, a cloth guide wheel 7 disposed on the machine body and located above the second roller 6, a cloth guide frame 8 disposed at intervals in front of the machine body, and a third roller 9 and a fourth roller 10 disposed on the top of the cloth guide frame 8.

[0026] It also includes a transverse platform 11 arranged in the support frame 4, a first slider 12 arranged on the transverse platform 11, a longitudinal drive device 13 arranged on the first slider 12, a connecting block 14 arranged at the bottom of the longitudinal drive device 13, a reel 15 arranged at the bottom of the connecting block 14 and used for rolling up the label, a label plate 16 arranged at the bottom of the connecting block 14, and a recovery roller 17 arranged in the middle of the connecting block 14 and used for recovering the label.

[0027] Put the cloth to be inspected on the placement rack 1. After completion, pass the cloth through the first roller 3 and the oblique lighting plate 2, then pull the cloth downward, pass the cloth between the second roller 6 and the cloth guide wheel 7, and then pull the cloth downward to roll it up on the paper roll between the third roller 9 and the fourth roller 10. Then run the equipment, the cloth passes through the oblique lighting plate 2 by rolling, and then passes through the second roller 6 and the cloth guide wheel 7. Since the paper roll is rotated by the rotation of the third roller 9 and the fourth roller 10, the paper roll will roll up the cloth passing through the second roller 6 and the cloth guide wheel 7. The first camera 5 detects the cloth passing through the oblique lighting plate 2. When there is When a defect occurs, each roller and the cloth guide wheel 7 stop rotating, the first camera 5 sends the image to an external processor (not shown in the figure) to locate the coordinates, and then the transverse platform 11 drives the first slider 12 to move to the transverse coordinates of the defect point, and at the same time the longitudinal drive device 13 drives the connecting block 14 to move downward, and one end of the label on the label plate 16 moves downward and will be adhered to the rolled cloth, and as the roll 15 is unwound, the label will be transferred to the defective point of the rolled cloth, and after completion, the longitudinal drive device 13 drives the connecting block 14 to move upward, and each roller and the cloth guide wheel 7 continue to rotate, so that the defective points of the rolled cloth can be automatically labeled.

[0028] The reel 15 has an RFID label 18 rolled up inside, and the RFID label 18 includes coated paper 181, a PET film 182 adhered to the bottom surface of the coated paper 181, an embedded aluminum antenna 183 adhered to the bottom surface of the PET film 182, a chip 184 adhered to the bottom surface of the PET film 182, and a release paper 185 glued to the bottom surface of the PET film 182.

[0029] When an RFID tag 18 is attached to a roll of cloth, the RFID tag 18 can be quickly read by a tag reader to calculate the number of tags, without the need to manually mark the outside of the roll of cloth, thereby facilitating the management of the roll of cloth. The RFID tag 18 can be detected before shipment to prevent defective rolls of cloth from entering the market.

[0030] The machine body is located above the placement frame 1 and is spaced apart from a first guide frame 19 , the machine body is located below the first roller 3 and is spaced apart from a second guide frame 20 , the machine body is provided with a first metal detector 21 near the first guide frame 19 , and the machine body is provided with a second metal detector 22 near the second guide frame 20 .

[0031] When the first metal detector 21 detects a broken needle or other metal object, the cloth is transported to the position between the first guide frame 19 and the second guide frame 20 and then stops being transported. After the broken needle or other metal object is removed, the cloth continues to be transported. After the second metal detector 22 does not detect a broken needle or other metal object, the cloth will continue to be input. When the broken needle or other metal object is detected again, the cloth transport will be stopped to avoid inputting unclean cloth.

[0032] The machine body is located between the first guide frame 19 and the second guide frame 20 and is provided with a clamping device 23 for clamping broken needles. The clamping device 23 includes a first screw platform 31 arranged on a lateral side of the machine body, a second screw platform 32 arranged to be spaced apart from the first screw platform 31, a first driving mechanism 33 for driving the first screw platform 31 and the second screw platform 32 to move synchronously, a second slider 34 arranged on the first screw platform 31, a mechanical claw 35 arranged above the second slider 34, a second driving mechanism 36 for driving the mechanical claw 35 to move forward and backward, a third slider 37 arranged on the second screw platform 32, an electromagnet 38 arranged above the third slider 37, and a third driving mechanism 39 for driving the electromagnet 38 to move forward and backward.

[0033] When in use, after the first metal detector 21 detects a broken needle or other metal object, the cloth continues to be transported to the position between the first guide frame 19 and the second guide frame 20, and then the first driving mechanism 33 drives the first screw platform 31 and the second screw platform 32 to operate synchronously, and the first screw platform 31 and the second screw platform 32 drive the second slider 34 and the third slider 37 to move horizontally to the position of the broken needle or other metal object, and then the second driving mechanism 36 drives the mechanical claw 35 to move horizontally close to the broken needle position for grabbing, and after completion, it leaves the cloth position, and the third driving mechanism 39 drives the electromagnet 38 to absorb close to the broken needle position to prevent the broken needle or other metal objects from remaining on the cloth.

[0034] The first screw platform 31 and the second screw platform 32 have the same structure, and the first driving mechanism 33 includes a first synchronous pulley 331 connected to the first screw platform 31, a second synchronous pulley 332 connected to the second screw platform 32, a belt 333 connected to the first synchronous pulley 331 and the second synchronous pulley 332, and a first motor 334 for driving the first synchronous pulley 331 to rotate.

[0035] The first motor 334 drives the first synchronous pulley 331 to rotate, and the first synchronous pulley 331 rotates the second synchronous pulley 332 through the belt 333. The first synchronous pulley 331 and the second synchronous pulley 332 drive the first screw platform 31 and the second screw platform 32 to move synchronously, which is beneficial to control the synchronous movement of the second slider 34 and the third slider 37.

[0036] The mechanical claw 35 includes a connecting frame 351 arranged on the second driving mechanism 36, a first rod 352 rotatably arranged on one side of the connecting frame 351, a first V-shaped rod 353 hinged to the first rod 352, and a second rod 354 and a second V-shaped rod 355 symmetrically arranged with the first rod 352 and the first V-shaped rod 353, a push block 356 is arranged between the first V-shaped rod 353 and the second V-shaped rod 355, and a drive cylinder 357 for driving the push block 356 to move longitudinally is arranged in the connecting frame 351.

[0037] When the mechanical claw 35 needs to clamp the broken needle, the driving cylinder 357 drives the push block 356 to move toward the side close to the connecting frame 351. When the push block 356 moves, the angle between the first rod 352 and the second rod 354 increases, and the first V-shaped rod 353 and the second V-shaped rod 355 are gradually tightened away from the connecting frame 351 until the broken needle is clamped. When the first V-shaped rod 353 and the second V-shaped rod 355 need to be opened, the driving cylinder 357 drives the push block 356 to move away from the connecting frame 351, and the first V-shaped rod 353 and the second V-shaped rod 355 are gradually opened away from the connecting frame 351.

[0038] The second driving mechanism 36 and the third driving mechanism 39 are distributed in a mirror image, and the second driving mechanism 36 and the third driving mechanism 39 have the same structure. The second driving mechanism 36 includes a connecting frame 601 arranged on the second slider 34, a rotating shaft 602 rotatably arranged in the middle of the connecting frame 601, a first connecting rod 603 fixedly arranged on the top of the rotating shaft 602, a first gear 604 fixedly arranged in the middle of the connecting frame 601, a second gear 605 rotatably arranged on the side of the first connecting rod 603 away from the first gear 604, a second connecting rod 606 arranged on the top of the second gear 605, a guide plate 607 arranged above the connecting frame 601, a fourth slider 608 slidably arranged in the guide plate 607 and rotatably connected to the second connecting rod 606, a moving plate 609 arranged on the top surface of the fourth slider 608, a rotating plate 610 rotatably arranged on the moving plate 609, a hinged portion 611 arranged on one side of the rotating plate 610, and a hinged portion 611 hingedly arranged on the hinged portion 611 and a connecting rod 612 between one side of the movable plate 609, a spring 613 arranged on the outside of the connecting rod 612, an extension plate 614 arranged on one side of the rotating plate 610 and forming a vertical angle with the connecting rod 612, a first limit block 615 arranged on both lateral sides of the top surface of the movable plate 609 and in contact with the extension plate 614, a third gear 616 fixedly arranged on the top surface of the rotating plate 610, a fourth gear 617 rotatably arranged on one side of the top surface of the movable plate 609 and meshing with the third gear 616, a fixed plate 618 fixedly arranged on the fourth gear 617, and a second motor 620 for driving the rotating shaft 602 to rotate, second limit blocks 619 for contacting the extension plate 614 are arranged on both lateral sides of the connecting frame 601, a chain 621 is provided between the first gear 604 and the second gear 605, a second camera 622 is arranged on the top of the fixed plate 618, and a collecting basket 623 is arranged on one side of the guide plate 607.

[0039] The second motor 620 drives the rotating shaft 602 to rotate, and the rotating shaft 602 drives the first connecting rod 603 on the top to rotate. The second gear 605 on one side of the rotating first connecting rod 603 rotates along the outer side of the first gear 604. Since the first gear 604 is fixed, the second gear 605 drives the second gear 605 and the second connecting rod 606 to rotate through the chain 621 during the rotation of the second gear 605. During the rotation of the second connecting rod 606, the fourth slider 608 and the moving plate 609 on the top are driven to move horizontally. The moving plate 609 will move toward the cloth surface. During the movement, the extension plate 614 on the top surface is moved with the cloth surface. After the second limit block 619 contacts, it will rotate 90° and contact the first limit block 615 on the other side of the extension plate 614. The extension plate 614 drives the rotating plate 610 to rotate, and the rotating plate 610 drives the third gear 616 on the top surface to rotate. The third gear 616 drives the fourth gear 617 to rotate 180°. The fixed plate 618 and the mechanical claw 35 on the fourth gear 617 will rotate 180°. As the second motor 620 continues to move, the moving plate 609 continues to move to the lateral side close to the cloth surface. After the second camera 622 recognizes that the mechanical claw 35 is close to the broken needle, the machine The mechanical claw 35 grabs the broken needle, the second motor 620 continues to move, the movable plate 609 will return to move to the other side, and when it moves to a position away from the cloth surface, the extension plate 614 will contact the second limit block 619 on the side of the movable plate 609 away from the cloth surface, the rotating plate 610 will rotate 90° in the opposite direction, the third gear 616 drives the fourth gear 617 to rotate 180°, and then continues to move to the other side, so that the mechanical claw 35 moves to the top of the collection basket 623. After completion, the mechanical claw 35 opens to make the broken needle fall into the collection basket 623, and the third driving mechanism 39 drives the third slider After the electromagnet 38 on 37 moves to the collection basket 623 on the other side away from the cloth surface, the electromagnet 38 is powered off, and the adsorbed metal objects will fall into the collection basket 623, thereby completing the cleaning of broken needles or metal objects without manual removal, and the double adsorption of the mechanical claw 35 and the electromagnet 38 on the left and right can effectively avoid omissions. The second drive mechanism 36 and the third drive mechanism 39 can automatically rotate 180° when the mechanical claw 35 moves on both sides and returns to the side away from the cloth surface, effectively transferring and collecting metal objects on one side of the mechanical claw 35 and the electromagnet 38.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A fabric defect detection device, characterized in that: The machine comprises a machine body, a placement frame (1) disposed on the machine body and used for placing a roll of cloth, an oblique lighting plate (2) disposed on the top of the machine body, a first roller (3) disposed on the top of the machine body and located above the oblique lighting plate (2), a support frame (4) disposed on the top of the frame, a first camera (5) disposed in the support frame (4), a second roller (6) disposed in the middle of the machine body and located at the bottom of the oblique lighting plate (2), a cloth guide wheel (7) disposed on the machine body and located above the second roller (6), a cloth guide frame (8) disposed at intervals in front of the machine body, and a third roller (9) and a fourth roller (10) disposed on the top of the cloth guide frame (8); The device also comprises a transverse moving platform (11) arranged in the support frame (4), a first sliding block (12) arranged on the transverse moving platform (11), a longitudinal driving device (13) arranged on the first sliding block (12), a connecting block (14) arranged at the bottom of the longitudinal driving device (13), a reel (15) arranged at the bottom of the connecting block (14) and used for rolling up the label, a label plate (16) arranged at the bottom of the connecting block (14), and a recycling roller (17) arranged at the middle of the connecting block (14) and used for recycling the label.

2. A fabric defect detection device according to claim 1, characterized in that: An RFID label (18) is rolled up in the reel (15), and the RFID label (18) comprises coated paper (181), a PET film (182) adhered to the bottom surface of the coated paper (181), an embedded aluminum antenna (183) adhered to the bottom surface of the PET film (182), a chip (184) adhered to the bottom surface of the PET film (182), and a release paper (185) glued to the bottom surface of the PET film (182).

3. A fabric defect detection device according to claim 1, characterized in that: The machine body is located above the placement frame (1) and is spaced apart from a first guide frame (19); the machine body is located below the first roller (3) and is spaced apart from a second guide frame (20); a first metal detector (21) is provided on the machine body near the first guide frame (19); and a second metal detector (22) is provided on the machine body near the second guide frame (20).

4. A fabric defect detection device according to claim 3, characterized in that: The machine body is provided with a clamping device (23) for clamping a broken needle between the first guide frame (19) and the second guide frame (20), and the clamping device (23) comprises a first screw platform (31) provided on a lateral side of the machine body, a second screw platform (32) spaced apart from the first screw platform (31), a first driving mechanism (33) for driving the first screw platform (31) and the second screw platform (32) to move synchronously, a second slider (34) provided on the first screw platform (31), a mechanical claw (35) provided above the second slider (34), a second driving mechanism (36) for driving the mechanical claw (35) to move forward and backward, a third slider (37) provided on the second screw platform (32), an electromagnet (38) provided above the third slider (37), and a third driving mechanism (39) for driving the electromagnet (38) to move forward and backward.

5. A fabric defect detection device according to claim 4, characterized in that: The first screw platform (31) and the second screw platform (32) have the same structure, and the first driving mechanism (33) comprises a first synchronous pulley (331) connected to the first screw platform (31), a second synchronous pulley (332) connected to the second screw platform (32), a belt (333) connected to the first synchronous pulley (331) and the second synchronous pulley (332), and a first motor (334) for driving the first synchronous pulley (331) to rotate.

6. A fabric defect detection device according to claim 4, characterized in that: The mechanical claw (35) comprises a connecting frame (351) arranged on a second driving mechanism (36), a first rod (352) rotatably arranged on one side of the connecting frame (351), a first V-shaped rod (353) hinged to the first rod (352), and a second rod (354) and a second V-shaped rod (355) symmetrically arranged with the first rod (352) and the first V-shaped rod (353), a push block (356) being arranged between the first V-shaped rod (353) and the second V-shaped rod (355), and a drive cylinder (357) for driving the push block (356) to move longitudinally being arranged in the connecting frame (351).

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