TPU (thermoplastic polyurethane) adhesive film defect detection device

Abstract

The invention discloses a use method of a TPU (thermoplastic polyurethane) adhesive film defect detection device, which is applied to the TPU adhesive film defect detection device, the TPU adhesive film defect detection device comprises a detection box, an LED (light-emitting diode) backlight plate is fixedly mounted at the bottom of an inner cavity of the detection box, a plurality of industrial cameras are fixedly mounted on two sides of the inner cavity of the detection box, and unwinding components are arranged on two sides of the detection box. The rear side of the detection box is provided with three bases, and the top of each base is provided with a release assembly. The TPU adhesive film is conveyed through the unwinding assembly, the surface defect type of the TPU adhesive film is detected through cooperative use of the detection box, the LED backlight plate and the industrial camera, finally, stickers of the corresponding defect type are moved to the rear side of the detection box through cooperative use of the station switching assembly and the sticker removing assembly, and finally, under the action of the marking assembly, the stickers of the corresponding defect type are marked. And a specified sticker is adhered to a specified defect position, so that the purposes of automatically detecting the defect and marking and marking in a classified manner to facilitate subsequent processing can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of TPU film detection, and in particular relates to a TPU film defect detection device. Background Art

[0002] TPU film is a thermoplastic polyurethane elastomer film with excellent tensile strength and elastic recovery properties. It can maintain good elasticity within a large stretching range and can quickly return to its original shape after releasing external force. This characteristic makes TPU film perform well in applications that require repeated stretching and bending, such as wearable devices, sports equipment, etc.

[0003] Due to the influence of production process, raw materials and other factors, TPU film may have various defects, such as bubbles, scratches, impurities, etc., which will affect the appearance and performance of the film, and may also cause problems in the use of the product, reducing the reliability and service life of the product. However, when detecting defects in TPU film, visual inspection is inefficient and prone to missed detections and false detections. For this reason, it is necessary to provide a TPU film defect detection device that uses automated transportation, automated detection and automated marking to quickly and accurately identify and mark defects in TPU film, thereby facilitating subsequent processing of related types of defects. Summary of the invention

[0004] The purpose of the present invention is to provide a TPU film defect detection device, which adopts automated transportation, automated detection and automated marking methods to quickly and accurately identify and mark defects of TPU films, thereby facilitating subsequent processing of related types of defects to solve the above-mentioned technical problems.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a method for using a TPU film defect detection device, which is applied to a TPU film defect detection device, the device comprising a detection box: an LED backlight panel is fixedly installed at the bottom of the inner cavity of the detection box, a plurality of industrial cameras are fixedly installed on both sides of the inner cavity of the detection box, unwinding components are arranged on both sides of the detection box, three bases are arranged on the rear side of the detection box, a debonding component is arranged on the top of the base, a station switching component is arranged on the rear side of the detection box, a tensioning component is arranged on the right side of the base, a marking component is arranged on the rear side of the detection box, and the marking component includes a self-receiving device on the rear side of the top of the detection box. A rotating tube that passes through the inner cavity of the detection box, the rotating tube is rotatably connected to the detection box, a first electric telescopic rod is fixedly installed on the left side of the top of the detection box, a gear plate is fixedly connected to the top of the surface of the rotating tube, an output end of the first electric telescopic rod is fixedly connected to a rack, the gear plate and the rack are meshed, a second electric telescopic rod is fixedly installed in the inner cavity of the rotating tube, a slidable lifting seat is provided at the bottom of the first electric telescopic rod, the output end of the second electric telescopic rod is fixedly connected to the lifting seat, a slidable pneumatic tube is provided on the top of the lifting seat, a pneumatic suction cup is fixedly connected to the bottom of the pneumatic tube, and an anti-sticking plate is fixedly installed on the bottom of the rear side of the detection box.

[0006] The method of using the TPU film defect detection device is as follows: 1. Before use, first, set the TPU film roll on the surface of the inner support fixture, and pass the TPU film through the inner cavity of the detection box so that it contacts the surface of the guide roller, and set the sticker roll on the surface of the unwinding disk, and fix the release paper on the surface of the winding disk, while ensuring that the sticker tape is wound on the surface of the horizontal limit roller, the de-sticking shovel plate, the offset limit roller and the driving roller, and then turn on the first DC motor, which drives the rotating shaft to rotate through the two chain disks, and drives the TPU film roll to rotate through the inner support fixture; 2. During the conveying process of the TPU film, the LED backlight panel is turned on and illuminates the bottom of the TPU film. Under the illumination of the light, the bubbles, scratches and impurities that may exist on the surface of the TPU film are particularly obvious. At the same time, under the visual capture of the industrial camera, the surface of the TPU film is inspected. When a defect is detected, the first DC motor stops running and the TPU film stops conveying. At this time, according to the type of defect, the stepper motor is turned on and drives the threaded rod to rotate. During the rotation process, the threaded rod drives the threaded sleeve to slide through its surface thread. During the sliding process, the threaded sleeve drives the sliding plate to slide. During the sliding process, the sliding plate drives the corresponding base to the center position of the top of the sliding plate, waiting for the sticker to be removed; 3. Then, the second DC motor is turned on. With the cooperation of the belt pulley, the reel and the driving roller rotate to convey the sticker tape. After the sticker tape is conveyed to the front end of the de-sticking shovel, the release paper and the sticker tape are separated. During the conveying process of the sticker tape, the torsion spring generates a torsional force on the rotating column, causing the rotating frame to rotate and driving the pressing wheel to press against the surface of the sticker tape, so that the sticker tape is always kept in a tensioned state. 4. At this time, the sticker reaches the top of the anti-sticking plate, and then the second electric telescopic rod is opened and pushes the lifting seat and the pneumatic tube to slide downward, the pneumatic tube and the pneumatic suction cup slide downward, and the bottom of the pneumatic suction cup contacts the sticker, and then the pneumatic suction cup absorbs the sticker, and then the second electric telescopic rod retracts and drives the pneumatic tube, the pneumatic suction cup and the sticker to move upward, and then the first electric telescopic rod is opened and drives the rack to slide, and the rack rotates during the sliding process due to the meshing transmission state between the rack and the toothed disc, and the rotating tube rotates during the rotation of the rotating tube, and the lifting seat drives the pneumatic tube and the sliding pin to rotate during the rotation, so that the pneumatic suction cup rotates 180 degrees, and the pneumatic suction cup rotates into the inner cavity of the detection box, and finally the second electric telescopic rod is opened again and pushes the lifting seat and the pneumatic tube downward to move, so that the pneumatic suction cup presses the sticker on the edge of the top of the TPU film, and the second electric telescopic rod retracts to drive the upward reset, and the first electric telescopic rod retracts and drives the rotating tube to rotate in the opposite direction, so that the lifting seat and the pneumatic tube can be reset.

[0007] Preferably, the de-sticking assembly includes a unwinding disk rotatably connected to the rear side of the top of the base, a winding disk rotatably connected to the rear end of one side of the base, two horizontal limit rollers rotatably connected to the top of the right side of the base, an offset limit roller rotatably connected to the front end of the right side of the base, a driving roller rotatably connected to the right side of the base, a second DC motor is fixedly installed on the left side of the base, the output shaft of the second DC motor is fixedly connected to the driving roller, and the left end of the winding disk and the output shaft of the second DC motor are both fixedly connected to a belt pulley.

[0008] Preferably, the two belt pulleys are connected by belt drive, a de-sticking shovel is fixedly connected to the front side of the top of the base, the surface of the unwinding disk is wound with the sticker tape, and the surfaces of the horizontal limiting roller, the offset limiting roller, the driving roller and the de-sticking shovel are in rolling contact with the sticker tape.

[0009] Preferably, the unwinding assembly includes a support box, the inner cavity of the support box is rotatably connected to a rotating shaft, the front end of the rotating shaft passes through the outside of the support box and is fixedly connected to an internal support clamp, a first DC motor is fixedly installed on the top of the support box, and the output shaft of the first DC motor and the surface of the rotating shaft are both fixedly connected to a chain disk.

[0010] Preferably, rotatable guide rollers are installed on both sides of the detection box, the surface of the inner support clamp holds a TPU film, the TPU film penetrates the inner cavity of the detection box and is in rolling contact with the surface of the guide roller, and the two chain plates are connected by chain transmission.

[0011] Preferably, the workstation switching assembly includes a support frame located at the rear side of the detection box, the top of the support frame is slidably connected to a sliding plate, the three bases are fixedly connected to the top of the sliding plate, a threaded sleeve is fixedly connected to the center of the bottom of the sliding plate, and the top of the inner cavity of the support frame is rotatably connected to a threaded rod.

[0012] Preferably, the threaded sleeve is threadedly connected to the surface of the threaded rod, a stepper motor is fixedly installed on the right side of the top of the inner cavity of the support frame, and the right end of the threaded rod is fixedly connected to the output shaft of the stepper motor.

[0013] Preferably, the tensioning assembly includes a fixed frame fixedly connected to the right side of the base, the inner cavity of the fixed frame is provided with a rotating frame, the inner cavity of the rotating frame is rotatably connected to a pressure wheel, and the surface of the pressure wheel is pressed against the surface of the decal tape.

[0014] Preferably, both ends of the rotating frame are fixedly connected with a rotating column, the rotating column is rotatably connected to the fixed frame, a torsion spring is sleeved on the surface of the rotating column, one end of the torsion spring is welded to the fixed frame, and the other end of the torsion spring is welded to the rotating frame.

[0015] Preferably, a sliding pin is fixedly connected to the front end of the pneumatic tube, the sliding pin is slidably connected to the lifting seat, a spring is sleeved on the surface of the sliding pin, and the top and bottom ends of the spring are respectively welded to the lifting seat and the sliding pin.

[0016] The beneficial effects of the present invention are as follows: the present invention conveys the TPU film through the unwinding component, and detects the surface defect type through the coordinated use of the detection box, the LED backlight panel and the industrial camera, and finally moves the sticker of the corresponding defect type to the rear side of the detection box through the coordinated use of the station switching component and the de-sticking component, and finally, under the action of the marking component, the designated sticker is pasted on the designated defect position, thereby achieving the purpose of automatically detecting defects and marking and classifying them for the convenience of subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only exemplary and do not limit the present invention, wherein: Figure 1 A schematic front view of an embodiment of the present invention; Figure 2It is a three-dimensional schematic diagram of a detection box, a debonding component, a station switching component and a marking component according to an embodiment of the present invention; Figure 3 A three-dimensional schematic diagram of a detection box and a marking assembly according to an embodiment of the present invention; Figure 4 A three-dimensional exploded view of a marking assembly according to an embodiment of the present invention; Figure 5 A three-dimensional schematic diagram of a base and a debonding assembly according to an embodiment of the present invention; Figure 6 A rear perspective schematic diagram of a base and a debonding assembly according to an embodiment of the present invention; Figure 7 It is a three-dimensional exploded view of a tensioning assembly according to an embodiment of the present invention; Figure 8 It is a three-dimensional schematic diagram of an unwinding assembly according to an embodiment of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Detection box, 2. LED backlight, 3. Industrial camera, 4. Unwinding assembly, 41. Support box, 42. Rotating shaft, 43. Internal support fixture, 44. First DC motor, 45. Chain plate, 46. Guide roller, 5. Base, 6. Debonding assembly, 61. Unwinding reel, 62. Rewinding reel, 63. Horizontal limit roller, 64. Displacement limit roller, 65. Driving roller, 66. Second DC motor, 67. Belt pulley, 68. Debonding shovel, 7. Station switching assembly, 71 , support frame, 72, sliding plate, 73, threaded sleeve, 74, threaded rod, 75, stepper motor, 8, tensioning assembly, 81, fixed frame, 82, rotating frame, 83, pressure wheel, 84, rotating column, 85, torsion spring, 9, marking assembly, 91, rotating tube, 92, first electric telescopic rod, 93, gear plate, 94, rack, 95, second electric telescopic rod, 96, lifting seat, 97, pneumatic tube, 98, pneumatic suction cup, 99, anti-sticking plate, 10, sliding pin, 11, spring. DETAILED DESCRIPTION

[0019] Hereinafter, embodiments of the TPU film defect detection device of the present invention will be described with reference to the accompanying drawings.

[0020] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are illustrative and exemplary, and should not be construed as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0021] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the present invention and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structures of various components of the embodiments of the present invention, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0022] Embodiment 1 Figure 1-8 The present invention shows a method for using a TPU film defect detection device according to an embodiment of the present invention, which is applied to a TPU film defect detection device, the device comprising a detection box 1: an LED backlight panel 2 is fixedly installed at the bottom of the inner cavity of the detection box 1, a plurality of industrial cameras 3 are fixedly installed on both sides of the inner cavity of the detection box 1, unwinding components 4 are arranged on both sides of the detection box 1, three bases 5 are arranged on the rear side of the detection box 1, a debonding component 6 is arranged on the top of the base 5, a station switching component 7 is arranged on the rear side of the detection box 1, a tensioning component 8 is arranged on the right side of the base 5, a marking component 9 is arranged on the rear side of the detection box 1, the marking component 9 comprises a rotating tube 91 which passes through the inner cavity of the detection box 1 from the rear side of the top of the detection box 1, the rotating tube 91 is rotatably connected to the detection box 1, and a first electric telescopic rod 9 is fixedly installed on the left side of the top of the detection box 1 2. A toothed disc 93 is fixedly connected to the top of the surface of the rotating tube 91, and a rack 94 is fixedly connected to the output end of the first electric telescopic rod 92, and the toothed disc 93 and the rack 94 are meshed. A second electric telescopic rod 95 is fixedly installed in the inner cavity of the rotating tube 91, and a slidable lifting seat 96 is provided at the bottom of the first electric telescopic rod 92, and the output end of the second electric telescopic rod 95 is fixedly connected to the lifting seat 96, and a slidable pneumatic tube 97 is penetrated through the top of the lifting seat 96, and a sliding pin 10 is fixedly connected to the front end of the pneumatic tube 97, and the sliding pin 10 is slidably connected to the lifting seat 96. A spring 11 is sleeved on the surface of the sliding pin 10, and the top and bottom ends of the spring 11 are respectively welded to the lifting seat 96 and the sliding pin 10, and a pneumatic suction cup 98 is fixedly connected to the bottom of the pneumatic tube 97, and an anti-sticking plate 99 is fixedly installed at the bottom of the rear side of the detection box 1.

[0023] The method of using the TPU film defect detection device is as follows: 1. Before use, firstly, the TPU film roll is sleeved on the surface of the inner support fixture 43, and the TPU film is passed through the inner cavity of the detection box 1 so that it contacts the surface of the guide roller 46, and the sticker roll is sleeved on the surface of the unwinding disk 61, and the release paper is fixed on the surface of the winding disk 62, and at the same time, the sticker tape is wound on the surface of the horizontal limit roller 63, the de-sticking shovel plate 68, the offset limit roller 64 and the driving roller 65, and then the first DC motor 44 is turned on, and the first DC motor 44 drives the rotating shaft 42 to rotate through the two chain disks 45, and drives the TPU film roll to rotate through the inner support fixture 43; 2. During the conveying process of the TPU film, the LED backlight panel 2 is turned on and illuminates the bottom of the TPU film. Under the illumination of the light, the bubbles, scratches and impurities that may exist on the surface of the TPU film are particularly obvious. At the same time, under the visual capture of the industrial camera 3, the surface of the TPU film is inspected. When a defect is detected, the first DC motor 44 stops running and the TPU film stops conveying. At this time, according to the defect type, the stepper motor 75 is turned on and drives the threaded rod 74 to rotate. During the rotation process, the threaded rod 74 drives the threaded sleeve 73 to slide through its surface thread. During the sliding process, the threaded sleeve 73 drives the sliding plate 72 to slide. During the sliding process, the sliding plate 72 drives the corresponding base 5 to the center position of the top of the sliding plate 72 to wait for the sticker to be taken; 3. Subsequently, the second DC motor 66 is turned on. With the cooperation of the belt pulley 67, the reel 62 and the driving roller 65 rotate, so that the sticker tape can be conveyed. After the sticker tape is conveyed to the front end of the de-sticking shovel plate 68, the release paper and the sticker of the sticker tape are separated. During the conveying process of the sticker tape, the torsion spring 85 generates a torsional force on the rotating column 84, so that the rotating frame 82 rotates and drives the pressing wheel 83 to press on the surface of the sticker tape, so that the sticker tape is always kept in a tensioned state. Fourth, at this time, the sticker reaches the top of the anti-sticking plate 99, and then the second electric telescopic rod 95 is opened and pushes the lifting seat 96 and the pneumatic tube 97 to slide downward, and the pneumatic tube 97 and the pneumatic suction cup 98 slide downward, and make the bottom of the pneumatic suction cup 98 contact the sticker, and then the pneumatic suction cup 98 absorbs the sticker, and then the second electric telescopic rod 95 retracts and drives the pneumatic tube 97, the pneumatic suction cup 98 and the sticker to move upward, and then the first electric telescopic rod 92 is opened and drives the rack 94 to slide, and during the sliding process, the rack 94 is in meshing transmission state with the toothed disc 93, and the rotating tube 91 rotates, and the rotating tube 91 rotates during the rotation process. During the rotation process, the second electric telescopic rod 95 and the lifting seat 96 are driven to rotate. During the rotation process, the lifting seat 96 drives the pneumatic tube 97 and the sliding pin 10 to rotate, so that the pneumatic suction cup 98 rotates 180 degrees, and the pneumatic suction cup 98 rotates into the inner cavity of the detection box 1. Finally, the second electric telescopic rod 95 is opened again and pushes the lifting seat 96 and the pneumatic tube 97 downward to move, so that the pneumatic suction cup 98 presses the sticker on the edge of the top of the TPU film. The second electric telescopic rod 95 retracts and drives it to reset upward. The first electric telescopic rod 92 retracts and drives the rotating tube 91 to rotate in the opposite direction, so that the lifting seat 96 and the pneumatic tube 97 are reset.

[0024] Embodiment 2 The embodiment is basically the same as the first embodiment, and furthermore, the de-sticking component 6 includes a reel 61 rotatably connected to the rear side of the top of the base 5, a reel 62 rotatably connected to the rear end of one side of the base 5, two horizontal limit rollers 63 rotatably connected to the top of the right side of the base 5, a dislocation limit roller 64 rotatably connected to the front end of the right side of the base 5, a driving roller 65 rotatably connected to the right side of the base 5, a second DC motor 66 is fixedly installed on the left side of the base 5, and the output shaft of the second DC motor 66 is fixedly connected to the driving roller 65, and the left end of the reel 62 and the output shaft of the second DC motor 66 are fixedly connected to a belt pulley 67, and the two belt pulleys 67 are connected by belts Transmission connection, a de-sticking shovel plate 68 is fixedly connected to the front side of the top of the base 5, a sticker tape is wound on the surface of the unwinding reel 61, and the surfaces of the horizontal limiting roller 63, the offset limiting roller 64, the driving roller 65 and the de-sticking shovel plate 68 are in rolling contact with the sticker tape, and the de-sticking component 6 is arranged, wherein the second DC motor 66 drives, the winding reel 62 and the driving roller 65 are used in coordination to wind up the sticker tape, so that the sticker and the release paper of the sticker tape can be separated at the front end of the de-sticking shovel plate 68, thereby facilitating the pneumatic suction cup 98 to absorb the sticker, so that stickers of different defect types can be stably and accurately pasted on the specified position.

[0025] Embodiment 3 The unwinding assembly 4 includes a support box 41, the inner cavity of the support box 41 is rotatably connected to a rotating shaft 42, the front end of the rotating shaft 42 passes through the outer side of the support box 41 and is fixedly connected to an inner support fixture 43, a first DC motor 44 is fixedly installed on the top of the support box 41, the output shaft of the first DC motor 44 and the surface of the rotating shaft 42 are fixedly connected to a chain plate 45, rotatable guide rollers 46 are installed on both sides of the detection box 1, and the surface of the inner support fixture 43 holds a TPU film. The film penetrates the inner cavity of the detection box 1 and rolls in contact with the surface of the guide roller 46. The two chain discs 45 are connected by chain transmission. Through the setting of the unwinding component 4, the first DC motor 44 and the chain disc 45 are used in coordination to drive the rotating shaft 42 to rotate. At the same time, with the coordinated use of the rotating shaft 42 and the inner support clamp 43, the TPU film roll is unwound and reeled, so that the TPU film can be stably transported and enter the designated position for surface inspection, so that the entire inspection process is continuous, stable and automated.

[0026] Embodiment 4 The embodiment is basically the same as the first embodiment, and further, the station switching assembly 7 includes a support frame 71 located at the rear side of the detection box 1, the top of the support frame 71 is slidably connected with a sliding plate 72, the three bases 5 are fixedly connected to the top of the sliding plate 72, the center of the bottom of the sliding plate 72 is fixedly connected with a threaded sleeve 73, the top of the inner cavity of the support frame 71 is rotatably connected with a threaded rod 74, the threaded sleeve 73 is threadedly connected to the surface of the threaded rod 74, a stepper motor 75 is fixedly installed on the right side of the top of the inner cavity of the support frame 71, and the right end of the threaded rod 74 is fixedly connected to the output shaft of the stepper motor 75. Through the setting of the station switching assembly 7, the driving of the stepper motor 75, the coordinated use of the threaded rod 74 and the threaded sleeve 73 drive the sliding plate 72 to slide, and the sliding plate 72 drives the three bases 5 to move during the sliding process, so that the corresponding base 5 can reach the specified position, and different types of stickers are selected for marking, so that the defect type on the surface of the TPU film can be accurately marked, which is convenient for the subsequent treatment of the defects on the surface of the TPU film.

[0027] Embodiment 5 The present invention is basically the same as the first embodiment, and furthermore, the tensioning assembly 8 includes a fixed frame 81 fixedly connected to the right side of the base 5, the inner cavity of the fixed frame 81 is provided with a rotating frame 82, the inner cavity of the rotating frame 82 is rotatably connected with a pressure wheel 83, the surface of the pressure wheel 83 is pressed on the surface of the decal tape, and both ends of the rotating frame 82 are fixedly connected with a rotating column 84, the rotating column 84 is rotatably connected to the fixed frame 81, and the surface of the rotating column 84 is sleeved with a torsion spring 85, one end of the torsion spring 85 is welded to the fixed frame 81, and the other end of the torsion spring 85 is welded to the rotating frame 82. Through the setting of the tensioning assembly 8, the fixed frame 81 and the torsion spring 85 are used in combination, the rotating frame 82 is elastically twisted, so that the pressure wheel 83 can be tightly pressed on the surface of the sticker tape, so that the sticker tape can be continuously tightened, and the sticker can be stably separated from the release paper.

[0028] To sum up: the TPU film defect detection device conveys the TPU film through the unwinding component 4, and detects the surface defect type through the coordinated use of the detection box 1, the LED backlight panel 2 and the industrial camera 3, and finally moves the sticker of the corresponding defect type to the back side of the detection box 1 through the coordinated use of the station switching component 7 and the de-sticking component 6, and finally, under the action of the marking component 9, the designated sticker is pasted on the designated defect position, so as to achieve the purpose of automatically detecting defects and marking and classifying them for subsequent processing.

[0029] The technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the invention to achieve the purpose of the invention.

Claims

1. A method for using a TPU film defect detection device, which is applied to a TPU film defect detection device, characterized in that: The device comprises a detection box (1): an LED backlight panel (2) is fixedly mounted at the bottom of the inner cavity of the detection box (1), a plurality of industrial cameras (3) are fixedly mounted on both sides of the inner cavity of the detection box (1), unwinding components (4) are arranged on both sides of the detection box (1), three bases (5) are arranged on the rear side of the detection box (1), a debonding component (6) is arranged on the top of the base (5), a station switching component (7) is arranged on the rear side of the detection box (1), a tensioning component (8) is arranged on the right side of the base (5), a marking component (9) is arranged on the rear side of the detection box (1), the marking component (9) comprises a rotating tube (91) penetrating from the rear side of the top of the detection box (1) to the inner cavity of the detection box (1), the rotating tube (91) is rotatably connected to the detection box (1), and the detection box (1) A first electric telescopic rod (92) is fixedly installed on the left side of the top, a toothed disc (93) is fixedly connected to the top of the surface of the rotating tube (91), an output end of the first electric telescopic rod (92) is fixedly connected to a rack (94), the toothed disc (93) and the rack (94) are meshed, a second electric telescopic rod (95) is fixedly installed in the inner cavity of the rotating tube (91), a slidable lifting seat (96) is provided at the bottom of the first electric telescopic rod (92), the output end of the second electric telescopic rod (95) is fixedly connected to the lifting seat (96), a slidable pneumatic tube (97) is provided through the top of the lifting seat (96), a pneumatic suction cup (98) is fixedly connected to the bottom of the pneumatic tube (97), and an anti-sticking plate (99) is fixedly installed at the bottom of the rear side of the detection box (1); The method of using the TPU film defect detection device is as follows:

1. Before use, firstly, the TPU film roll is placed on the surface of the inner support clamp (43), and the TPU film is passed through the inner cavity of the detection box (1) so that it contacts the surface of the guide roller (46), and the sticker roll is placed on the surface of the unwinding disk (61), and the release paper is fixed on the surface of the winding disk (62), and at the same time, the sticker tape is wound on the surface of the horizontal limit roller (63), the de-sticking shovel plate (68), the offset limit roller (64) and the driving roller (65), and then the first DC motor (44) is turned on, and the first DC motor (44) drives the rotating shaft (42) to rotate through the two chain disks (45), and drives the TPU film roll to rotate through the inner support clamp (43); 2. During the conveying process of the TPU film, the LED backlight panel (2) is turned on and illuminates the bottom of the TPU film. Under the illumination of the light, bubbles, scratches and impurities that may exist on the surface of the TPU film are particularly obvious. At the same time, under the visual capture of the industrial camera (3), the surface of the TPU film is inspected. When a defect is detected, the first DC motor (44) stops running and the conveying of the TPU film stops. At this time, according to the type of defect, the stepper motor (75) is turned on and drives the threaded rod (74) to rotate. During the rotation process, the threaded rod (74) drives the threaded sleeve (73) to slide through its surface threads. During the sliding process, the threaded sleeve (73) drives the sliding plate (72) to slide. During the sliding process, the sliding plate (72) drives the corresponding base (5) to reach the center position of the top of the sliding plate (72) to wait for the sticker to be taken; 3. Subsequently, the second DC motor (66) is turned on. The second DC motor (66) is used in conjunction with the belt pulley (67) to rotate the reel (62) and the drive roller (65), so that the sticker tape can be transported. After the sticker tape is transported to the front end of the de-sticking shovel plate (68), the release paper and the sticker of the sticker tape are separated. During the transportation of the sticker tape, the torsion spring (85) generates a torsional force on the rotating column (84), so that the rotating frame (82) rotates and drives the pressure wheel (83) to press on the surface of the sticker tape, so that the sticker tape is always kept in a tensioned state; Fourth, at this time, the sticker reaches the top of the anti-sticking plate (99), and then the second electric telescopic rod (95) is opened and pushes the lifting seat (96) and the pneumatic tube (97) to slide downward, and the pneumatic tube (97) and the pneumatic suction cup (98) slide downward, and the bottom of the pneumatic suction cup (98) contacts the sticker, and then the pneumatic suction cup (98) absorbs the sticker, and then the second electric telescopic rod (95) retracts and drives the pneumatic tube (97), the pneumatic suction cup (98) and the sticker to move upward, and then the first electric telescopic rod (92) is opened and drives the rack (94) to slide, and during the sliding process, the rack (94) is in a meshing transmission state with the toothed disc (93), so that the rotating tube (91) rotates, and the rotating tube (91) rotates during the rotation process. During the rotation process, the second electric telescopic rod (95) and the lifting seat (96) are driven to rotate. During the rotation process, the lifting seat (96) drives the pneumatic tube (97) and the sliding pin (10) to rotate, so that the pneumatic suction cup (98) rotates 180 degrees, and the pneumatic suction cup (98) rotates into the inner cavity of the detection box (1). Finally, the second electric telescopic rod (95) is opened again and pushes the lifting seat (96) and the pneumatic tube (97) downward to move, so that the pneumatic suction cup (98) presses the sticker on the edge of the top of the TPU film. The second electric telescopic rod (95) retracts and drives it to reset upward. The first electric telescopic rod (92) retracts and drives the rotating tube (91) to rotate in the opposite direction, so that the lifting seat (96) and the pneumatic tube (97) are reset.

2. The method for using the TPU film defect detection device according to claim 1, characterized in that: The debonding component (6) comprises an unwinding disk (61) rotatably connected to the rear side of the top of the base (5); a reel (62) is rotatably connected to the rear end of one side of the base (5); two horizontal limit rollers (63) are rotatably connected to the top of the right side of the base (5); a dislocation limit roller (64) is rotatably connected to the front end of the right side of the base (5); a driving roller (65) is rotatably connected to the right side of the base (5); a second DC motor (66) is fixedly mounted on the left side of the base (5); an output shaft of the second DC motor (66) is fixedly connected to the driving roller (65); and a belt pulley (67) is fixedly connected to the left end of the reel (62) and the output shaft of the second DC motor (66).

3. The method for using the TPU film defect detection device according to claim 2, characterized in that: The two belt pulleys (67) are connected via a belt drive, a sticker stripping shovel (68) is fixedly connected to the front side of the top of the base (5), a sticker tape is wound on the surface of the unwinding disk (61), and the surfaces of the horizontal limiting roller (63), the offset limiting roller (64), the driving roller (65) and the sticker stripping shovel (68) are all in rolling contact with the sticker tape.

4. The method for using the TPU film defect detection device according to claim 3, characterized in that: The unwinding assembly (4) comprises a support box (41), the inner cavity of the support box (41) is rotatably connected to a rotating shaft (42), the front end of the rotating shaft (42) passes through the outer side of the support box (41) and is fixedly connected to an inner support clamp (43), a first DC motor (44) is fixedly mounted on the top of the support box (41), and a chain disc (45) is fixedly connected to the output shaft of the first DC motor (44) and the surface of the rotating shaft (42).

5. The method for using the TPU film defect detection device according to claim 4, characterized in that: Rotatable guide rollers (46) are installed on both sides of the detection box (1), and the surface of the inner support clamp (43) holds a TPU film. The TPU film penetrates the inner cavity of the detection box (1) and is in rolling contact with the surface of the guide roller (46). The two chain plates (45) are connected by chain transmission.

6. The method for using the TPU film defect detection device according to claim 5, characterized in that: The workstation switching assembly (7) comprises a support frame (71) located at the rear side of the detection box (1), the top of the support frame (71) is slidably connected to a sliding plate (72), the three bases (5) are fixedly connected to the top of the sliding plate (72), a threaded sleeve (73) is fixedly connected at the center of the bottom of the sliding plate (72), and the top of the inner cavity of the support frame (71) is rotatably connected to a threaded rod (74).

7. The method for using the TPU film defect detection device according to claim 6, characterized in that: The threaded sleeve (73) is threadedly connected to the surface of the threaded rod (74); a stepper motor (75) is fixedly mounted on the right side of the top of the inner cavity of the support frame (71); and the right end of the threaded rod (74) is fixedly connected to the output shaft of the stepper motor (75).

8. The method for using the TPU film defect detection device according to claim 7, characterized in that: The tensioning assembly (8) comprises a fixed frame (81) fixedly connected to the right side of the base (5); a rotating frame (82) is provided in the inner cavity of the fixed frame (81); a pressing wheel (83) is rotatably connected to the inner cavity of the rotating frame (82); and the surface of the pressing wheel (83) is pressed against the surface of the decal tape.

9. The method for using the TPU film defect detection device according to claim 8, characterized in that: Both ends of the rotating frame (82) are fixedly connected to a rotating column (84), the rotating column (84) is rotatably connected to the fixed frame (81), a torsion spring (85) is sleeved on the surface of the rotating column (84), one end of the torsion spring (85) is welded to the fixed frame (81), and the other end of the torsion spring (85) is welded to the rotating frame (82).

10. The method for using the TPU film defect detection device according to claim 9, characterized in that: A sliding pin (10) is fixedly connected to the front end of the pneumatic tube (97), and the sliding pin (10) is slidably connected to the lifting seat (96). A spring (11) is sleeved on the surface of the sliding pin (10), and the top and bottom ends of the spring (11) are respectively welded to the lifting seat (96) and the sliding pin (10).

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