Screen cloth roll detecting and repairing device

Abstract

The utility model discloses a silk screen cloth roll detecting and repairing device which comprises an unwinding unit, a winding unit, a defect detecting unit and a defect repairing unit, and the unwinding unit is used for being sleeved with a silk screen cloth roll to be detected; the winding unit is used for winding the detected silk screen cloth; the defect detection unit is arranged between the unwinding unit and the winding unit and is close to the unwinding unit, the defect detection unit comprises a camera, and the camera can move in the width direction of the silk screen cloth and is used for shooting defects on the silk screen cloth. Compared with the prior art, the defect detection device has the beneficial effects that the defects can be quickly found and amplified by adopting a mode of finding and shooting the defects by adopting the camera and cooperating with the microscope to amplify the defects, so that a worker can conveniently repair the defects, the detection and repair efficiency is improved, the labor intensity of the worker is reduced, and the labor intensity of the worker is reduced. And the conditions of missing detection, wrong detection, missing repair and wrong repair are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing, in particular to a device for detecting and repairing a screen cloth roll. Background Art

[0002] A screen plate is composed of a screen frame and a screen cloth. When making a screen plate, different mesh counts of screen cloth and a screen frame with a suitable size need to be selected according to different materials of printing substrates and precision requirements. Then, the screen cloth is closely combined with the screen frame, and processes such as stretching the screen and cutting are carried out to form a screen plate. The produced screen cloth (such as a screen cloth and a screen template disclosed in the patent application No. 201520597633.5) is wound on a paper tube to form a coil for storage. In order to ensure that the quality of the screen cloth meets the requirements, it is necessary to detect the screen cloth roll before use. For areas detected with defects (such as dirt, bending, dust, broken wires, etc.), manual repair is also required. For the detection and repair of screen cloth roll defects, currently, the method of manually observing to find defects is mainly adopted. Since the defect area of the screen cloth is very small, it is not easy to find defects by manual observation, resulting in low detection and repair efficiency, and it is easy to have situations of missed detection, misdetection, missed repair, and misrepair. Moreover, the human eye is prone to fatigue, and the manual labor intensity is relatively large. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above technical deficiencies, and provide a device for detecting and repairing a screen cloth roll, so as to solve the technical problems in the prior art that when detecting and repairing a screen cloth roll by the method of manually observing defects, since the defect area of the screen cloth is very small, it is not easy to find defects by manual observation, resulting in low detection and repair efficiency, and it is easy to have situations of missed detection, misdetection, missed repair, and misrepair, and the human eye is prone to fatigue, and the manual labor intensity is relatively large.

[0004] To achieve the above technical purpose, the technical solution of the utility model provides a device for detecting and repairing a screen cloth roll, including:

[0005] A pay-off unit, on which a screen cloth roll to be detected is sleeved;

[0006] A take-up unit, used for taking up the detected screen cloth;

[0007] A defect detection unit, arranged between the pay-off unit and the take-up unit and close to the pay-off unit. The defect detection unit includes a camera, and the camera can move along the width direction of the screen cloth to photograph the defects on the screen cloth;

[0008] A defect repair unit, arranged between the pay-off unit and the take-up unit and close to the take-up unit. The defect repair unit includes a microscope, and the microscope can move along the length direction and the width direction of the screen cloth to magnify the defects on the screen cloth.

[0009] Furthermore, the defect detection unit is arranged directly above the wire mesh cloth, and further includes a first moving component connected to the camera for driving the camera to horizontally move along the width direction of the wire mesh cloth.

[0010] Furthermore, the defect repair unit is arranged directly above the wire mesh cloth, and further includes a second moving component and a red light indicator. The second moving component is connected to the microscope for driving the microscope to move along the length and width directions of the wire mesh cloth, and the red light indicator is connected to the second moving component for assisting in positioning the microscope.

[0011] Furthermore, the wire mesh cloth roll detection and repair device further includes a control unit for processing the defects captured by the camera and displaying the images, types, and position information of the defects, and also for displaying the magnified images, types, and position information of the defects.

[0012] Furthermore, the control unit includes a controller, a first display screen, a second display screen, and an encoder. The controller is electrically connected to the camera for processing the defects captured by the camera and obtaining the images, types, and position information of the defects. The first display screen is electrically connected to the controller for displaying the images, types, and position information of the defects. The second display screen is electrically connected to the microscope for displaying the magnified images, types, and position information of the defects. The encoder is arranged on the side of the wire mesh cloth for recording the moving distance of the wire mesh cloth.

[0013] Furthermore, the wire mesh cloth roll detection and repair device further includes a coding unit arranged between the defect detection unit and the defect repair unit and close to the defect detection unit. The coding unit can move along the width direction of the wire mesh cloth for printing numerical values on the wire mesh cloth.

[0014] Furthermore, the coding unit is arranged directly above the wire mesh cloth and includes a coding head and a third moving component. The coding head is used for printing numerical values on the wire mesh cloth, and the third moving component is connected to the coding head for driving the coding head to horizontally move along the width direction of the wire mesh cloth.

[0015] Furthermore, the wire mesh cloth roll detection and repair device further includes a tension adjustment unit arranged between the defect detection unit and the defect repair unit for adjusting the tension of the wire mesh cloth.

[0016] Further, the tension adjusting unit includes two bases, two fixed rollers, a plurality of guide shafts, two guide seats, a movable roller, a plurality of elastic members, two second photoelectric switches and two second sensing pieces. The two bases are arranged at intervals. The two fixed rollers are both arranged in parallel along the width direction of the wire mesh cloth. The two ends of the fixed roller are respectively fixed to the two bases. The upper surfaces of the two fixed rollers are in sliding contact with the wire mesh cloth. Each of the guide shafts is arranged vertically and is respectively fixed on the two bases. The movable roller is arranged in parallel between the two fixed rollers along the width direction of the wire mesh cloth. The two ends of the movable roller are respectively fixed to the two guide seats. The lower surface of the movable roller is in sliding contact with the wire mesh cloth. Each of the elastic members is respectively arranged on the corresponding guide shaft and is respectively located directly below the corresponding guide seat. The lower ends of the elastic members are respectively fixed to the corresponding bases, and the upper ends of the elastic members are respectively fixed to the corresponding guide seats to adjust the height of the movable roller. The two second photoelectric switches are respectively fixed on the corresponding bases, and the two second sensing pieces are respectively fixed on the corresponding guide seats. During the up-and-down movement of the guide seat, the two second sensing pieces are respectively in contact with the corresponding second photoelectric switches. When the two second sensing pieces are respectively in contact with the corresponding second photoelectric switches, the wire mesh cloth is in a tensioned state.

[0017] Further, the wire mesh cloth roll detection and repair device further includes a flattening unit, which is arranged directly below the defect detection unit and is used to flatten the wire mesh cloth.

[0018] Compared with the prior art, the beneficial effects of the present utility model include: during use, the wire mesh cloth roll is sleeved on the unwinding unit, and the head end of the wire mesh cloth roll is fixedly wound on the winding unit. By controlling the unwinding unit to unwind the wire mesh cloth and the winding unit to wind the wire mesh cloth, the wire mesh cloth can be moved step by step between the unwinding unit and the winding unit. The camera moves along the width direction of the wire mesh cloth and will scan out an interval with a preset width on the wire mesh cloth. If there are defects in this interval, the camera will take pictures of the defects. When this interval moves to the defect repair unit, the microscope moves along the length and width directions of the wire mesh cloth and reaches the defect. The microscope magnifies the defect, and the worker can repair the defect according to the magnified defect. In the present utility model, by using the camera to find and photograph the defects and cooperating with the microscope to magnify the defects, the defects can be quickly found and magnified, which is convenient for the worker to repair the defects, improves the detection and repair efficiency, reduces the labor intensity of the worker, and avoids the situations of missed detection, misdetection, missed repair, and misrepair. Description of the Drawings

[0019] Figure 1It is a three-dimensional structural schematic diagram of a silk screen cloth roll detection and repair device provided by the present utility model;

[0020] Figure 2 It is Figure 1 a three-dimensional structural schematic diagram of a silk screen cloth roll detection and repair device in another perspective in ;

[0021] Figure 3 It is a structural schematic diagram of a silk screen cloth roll detection and repair device provided by the present utility model;

[0022] Figure 4 It is Figure 3 a structural schematic diagram of the unwinding unit in ;

[0023] Figure 5 It is Figure 3 a structural schematic diagram of the winding unit in ;

[0024] Figure 6 It is Figure 1 a three-dimensional structural schematic diagram of the defect detection unit in ;

[0025] Figure 7 It is Figure 2 a three-dimensional structural schematic diagram of the defect repair unit in ;

[0026] Figure 8 It is Figure 1 a three-dimensional structural schematic diagram of the inkjet coding unit in ;

[0027] Figure 9 It is Figure 3 a structural schematic diagram of the tension adjustment unit in ;

[0028] Figure 10 It is Figure 3 a structural schematic diagram of the flattening unit in ;

[0029] Figure 11 It is Figure 3 a structural schematic diagram of the flattening unit in ;

[0030] In the figure: 100 - unwinding unit, 110 - first active safety chuck, 120 - first driven safety chuck, 130 - unwinding roller, 140 - first guiding roller, 150 - first driving assembly, 151 - first coupling, 152 - first magnetic powder clutch, 153 - second coupling, 154 - first rotation driving member, 200 - winding unit, 210 - second active safety chuck, 220 - second driven safety chuck, 230 - winding roller, 240 - second guiding roller, 250 - second driving assembly, 251 - third coupling, 252 - second magnetic powder clutch, 253 - fourth coupling, 254 - second rotation driving member, 260 - deviation rectifying assembly, 261 - first slide rail, 262 - second slide rail, 263 - first lead screw, 264 - active seat, 265 - driven seat, 266 - connecting rod, 267 - hand wheel, 300 - defect detection unit, 310 - camera, 320 - first moving assembly, 321 - first X-direction guide rail, 322 - first X-direction driving member, 323 - first connecting plate, 324 - first lifting platform, 400 - defect repair unit, 410 - microscope, 420 - second moving assembly, 421 - second X-direction guide rail, 422 - second X-direction driving member, 423 - second connecting plate, 424 - Y-direction guide rail, 425 - second lead screw, 426 - Y-direction driving member, 427 - first photoelectric switch, 428 - first induction piece, 429 - second lifting platform, 430 - red light indicator, 500 - control unit, 510 - first display screen, 520 - second display screen, 530 - encoder, 540 - control panel, 600 - inkjet printing unit, 610 - inkjet printing head, 620 - third moving assembly, 621 - fixed seat, 622 - third X-direction guide rail, 623 - third lead screw, 624 - transmission member, 625 - third X-direction driving member, 630 - touch screen, 700 - tension adjustment unit, 710 - base, 720 - fixed roller, 730 - guide shaft, 740 - guide seat, 750 - movable roller, 760 - elastic member, 770 - second photoelectric switch, 780 - second induction piece, 800 - flattening unit, 810 - first light source plate, 820 - lower pressing plate, 830 - upper pressing plate, 840 - telescopic driving member, 900 - flattening unit, 910 - second light source plate, 920 - flattening plate. Detailed implementation mode

[0031] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0032] The present utility model provides a silk screen cloth roll detection and repair device, and its structure is as Figure 1 - Figure 7As shown, it includes an unwinding unit 100, a winding unit 200, a defect detection unit 300 and a defect repair unit 400. A wire mesh cloth roll to be detected is sleeved on the unwinding unit 100; the winding unit 200 is used to wind the detected wire mesh cloth; the defect detection unit 300 is arranged between the unwinding unit 100 and the winding unit 200 and is close to the unwinding unit 100. The defect detection unit 300 includes a camera 310 which can move along the width direction of the wire mesh cloth to photograph the defects on the wire mesh cloth; the defect repair unit 400 is arranged between the unwinding unit 100 and the winding unit 200 and is close to the winding unit 200. The defect repair unit 400 includes a microscope 410 which can move along the length and width directions of the wire mesh cloth to magnify the defects on the wire mesh cloth.

[0033] During use, the wire mesh cloth roll is sleeved on the unwinding unit 100, and the head end of the wire mesh cloth roll is fixedly wound on the winding unit 200. By controlling the unwinding unit 100 to unwind the wire mesh cloth and the winding unit 200 to wind the wire mesh cloth, the wire mesh cloth can be moved step by step between the unwinding unit 100 and the winding unit 200. The camera 310 moves along the width direction of the wire mesh cloth and will scan an interval with a preset width on the wire mesh cloth. If there are defects in this interval, the camera 310 will photograph the defects. When this interval moves to the defect repair unit 400, the microscope 410 moves along the length and width directions of the wire mesh cloth and reaches the defect. The microscope 410 magnifies the defect, and the worker can repair the defect according to the magnified defect. In the present utility model, by using the camera 310 to find and photograph the defects and cooperating with the microscope 410 to magnify the defects, the defects can be quickly found and magnified, which is convenient for the worker to repair the defects, improves the detection and repair efficiency, reduces the labor intensity of the worker, and avoids the situations of missed detection, misdetection, missed repair and misrepair.

[0034] As a preferred embodiment, please refer to Figure 4, the unwinding unit 100 includes a first active safety chuck 110, a first driven safety chuck 120, an unwinding roller 130, a first guiding roller 140, and a first driving assembly 150. The first active safety chuck 110 and the first driven safety chuck 120 are arranged at intervals. The unwinding roller 130 is horizontally arranged between the first active safety chuck 110 and the first driven safety chuck 120. Both ends of the unwinding roller 130 are respectively clamped with the first active safety chuck 110 and the first driven safety chuck 120. A reel for detachably and fixedly sleeving a wire mesh cloth roll is provided on the unwinding roller 130. The first guiding roller 140 is rotatably arranged on the side of the unwinding roller 130 for guiding the wire mesh cloth. The first driving assembly 150 is detachably and fixedly connected to one end of the unwinding roller 130 for driving the unwinding roller 130 to rotate, so as to unwind the wire mesh cloth roll. The structure of the unwinding unit 100 facilitates the taking and placing of the wire mesh cloth roll.

[0035] As a preferred embodiment, please refer to Figure 4 , the unwinding roller 130 is a first air shaft, and the first air shaft realizes detachable fixed connection with the reel of the wire mesh cloth roll by means of inflation.

[0036] As a preferred embodiment, please refer to Figure 4 , the first driving assembly 150 includes a first coupling 151, a first magnetic powder clutch 152, a second coupling 153, and a first rotation driving member 154. One end of the first coupling 151 is detachably clamped with one end of the unwinding roller 130. One end of the first magnetic powder clutch 152 is connected to the other end of the first coupling 151. One end of the second coupling 153 is connected to the other end of the first magnetic powder clutch 152. The output end of the first rotation driving member 154 is fixedly connected to the other end of the second coupling 153 for driving the second coupling 153 to rotate. The first magnetic powder clutch 152 is used to prevent the wire mesh cloth from being damaged due to excessive tension, and improves the stability during the rotation of the wire mesh cloth roll.

[0037] As a preferred embodiment, please refer to Figure 5, the winding unit 200 includes a second active safety chuck 210, a second driven safety chuck 220, a winding roller 230, a second guiding roller 240, a second driving assembly 250 and a deviation rectifying assembly 260. The second active safety chuck 210 and the second driven safety chuck 220 are arranged at intervals. The winding roller 230 is horizontally arranged between the second active safety chuck 210 and the second driven safety chuck 220 and is parallel to the unwinding roller 130. Both ends of the winding roller 230 are clamped to the second active safety chuck 210 and the second driven safety chuck 220 respectively. A winding drum for detachably fixing and sleeving a wire mesh cloth roll is provided on the winding roller 230. The second guiding roller 240 is rotatably arranged on the side of the winding roller 230 for guiding the wire mesh cloth. The second driving assembly 250 is detachably and fixedly connected to one end of the winding roller 230 for driving the winding roller 230 to rotate and making the rotation direction and rotation speed of the winding roller 230 the same as those of the unwinding roller 130. The deviation rectifying assembly 260 is connected to both the second active safety chuck 210 and the second driven safety chuck 220 for driving the second active safety chuck 210 and the second driven safety chuck 220 to move synchronously along the radial direction of the winding roller 230 to correct the position of the wire mesh cloth and prevent the wire mesh cloth from running off. The structure of the winding unit 200 facilitates the taking and placing of the wire mesh cloth roll.

[0038] As a preferred embodiment, please refer to Figure 5 , the winding roller 230 is a second air shaft, and the second air shaft realizes detachable fixed connection with the winding drum of the wire mesh cloth roll by means of inflation.

[0039] As a preferred embodiment, please refer to Figure 5 , the second driving assembly 250 includes a third coupling 251, a second magnetic powder clutch 252, a fourth coupling 253 and a second rotation driving member 254. One end of the third coupling 251 is detachably clamped to one end of the winding roller 230. One end of the second magnetic powder clutch 252 is connected to the other end of the third coupling 251. One end of the fourth coupling 253 is connected to the other end of the second magnetic powder clutch 252. The output end of the second rotation driving member 254 is fixedly connected to the other end of the fourth coupling 253 for driving the fourth coupling 253 to rotate. The second magnetic powder clutch 252 is used to prevent the wire mesh cloth from being damaged due to excessive tension and improve the stability during the rotation of the wire mesh cloth roll.

[0040] As a preferred embodiment, please refer to Figure 5, the deviation rectifying component 260 includes at least one first slide rail 261, at least one second slide rail 262, a first lead screw 263, a driving seat 264, a driven seat 265, at least one connecting rod 266 and a hand crank 267. Each of the first slide rails 261 is arranged radially along the winding roller 230 directly below the second driving safety chuck 210. Each of the second slide rails 262 is arranged radially along the winding roller 230 directly below the second driven safety chuck 220. The first lead screw 263 is arranged radially along the winding roller 230 directly below the second driving safety chuck 210. The driving seat 264 is slidably arranged on each of the first slide rails 261. A first threaded hole is formed in the driving seat 264 and sleeved on the first lead screw 263 through the first threaded hole. The first threaded hole is screwed with the first lead screw 263. The second driving safety chuck 210 is detachably fixed on the driving seat 264. The driven seat 265 is slidably arranged on each of the second slide rails 262. The second driven safety chuck 220 is detachably fixed on the driven seat 265. Each of the connecting rods 266 is arranged between the driving seat 264 and the driven seat 265. One end of each of the connecting rods 266 is fixedly connected to the driving seat 264, and the other end of each of the connecting rods 266 is fixedly connected to the driven seat 265. The hand crank 267 is fixedly connected to one end of the first lead screw 263 for driving the first lead screw 263 to rotate. When the wire mesh cloth runs off, by controlling the rotation of the hand crank 267, the hand crank 267 can drive the first lead screw 263 to rotate. Since the driving seat 264 is screwed with the first lead screw 263 and the driving seat 264 is guided by each of the first slide rails 261, the driving seat 264 can move along the width direction of the wire mesh cloth and drive the driven seat 265 to move along the width direction of the wire mesh cloth through the connecting rod 266, so as to adjust the position of the winding roller 230 and realize the deviation rectification of the wire mesh cloth.

[0041] As a preferred embodiment, please refer to Figure 3 and Figure 6 , the defect detection unit 300 is arranged directly above the wire mesh cloth and further includes a first moving component 320. The first moving component 320 is connected to the camera 310 and used for driving the camera 310 to horizontally move along the width direction of the wire mesh cloth. By controlling the first moving component 320, the first moving component 320 can be made to drive the camera 310 to horizontally move along the width direction of the wire mesh cloth, and the camera 310 can scan a preset-width interval on the wire mesh cloth.

[0042] As a preferred embodiment, please refer to Figure 6, the first moving component 320 includes a first X-direction guide rail 321, a first X-direction driving member 322, and a first connecting plate 323. The first X-direction guide rail 321 is horizontally arranged along the width direction of the wire mesh cloth. The first X-direction driving member 322 is slidably arranged on the first X-direction guide rail 321 and can move along the length direction of the first X-direction guide rail 321. The first connecting plate 323 is detachably and fixedly connected to the first X-direction driving member 322. The camera 310 is detachably fixed on the first connecting plate 323. By controlling the first X-direction driving member 322, the first X-direction driving member 322 can move along the length direction of the first X-direction guide rail, so that the camera 310 can move along the width direction of the wire mesh cloth.

[0043] As a preferred embodiment, please refer to Figure 6 , the first moving component 320 further includes a first lifting platform 324. The first lifting platform 324 is detachably fixed on the first connecting plate 323 and is connected to the camera 310. The first lifting platform 324 can move up and down relative to the first connecting plate 323 to adjust the distance between the camera 310 and the wire mesh cloth, so as to manually adjust the distance between the camera 310 and the wire mesh cloth to be appropriate and improve the shooting effect of the camera 310 on defects.

[0044] As a preferred embodiment, please refer to Figure 3 and Figure 7 , the defect repair unit 400 is arranged directly above the wire mesh cloth. It further includes a second moving component 420 and a red light indicator 430. The second moving component 420 is connected to the microscope 410 and is used to drive the microscope 410 to move along the length direction and width direction of the wire mesh cloth. The red light indicator 430 is connected to the second moving component 420 and is used to assist in positioning the microscope 410, so that the microscope 410 can accurately move to directly above the defect. By controlling the second moving component 420, the second moving component 420 can drive the microscope 410 to horizontally move along the length direction and width direction of the wire mesh cloth, facilitating the microscope 410 to reach directly above the defect.

[0045] As a preferred embodiment, please refer to Figure 7, the second moving component 420 includes a second X-direction guide rail 421, a second X-direction driving member 422, a second connecting plate 423, a Y-direction guide rail 424, a second lead screw 425 and a Y-direction driving member 426. The second X-direction guide rail 421 is horizontally arranged along the width direction of the wire mesh cloth. The second X-direction driving member 422 is slidably arranged on the second X-direction guide rail 421 and can move along the length direction of the second X-direction guide rail 421. The second connecting plate 423 is detachably and fixedly connected to the second X-direction driving member 422. The Y-direction guide rail 424 is horizontally arranged along the length direction of the wire mesh cloth and is slidably connected to the second connecting plate 423. The second lead screw 425 is horizontally arranged along the length direction of the wire mesh cloth. A second threaded hole is formed in the Y-direction guide rail 424, and the second lead screw 425 is sleeved through the second threaded hole. The second threaded hole is screwed to the second lead screw 425. The Y-direction driving member 426 is fixedly arranged on the second connecting plate 423. The Y-direction driving member 426 is connected to one end of the second lead screw 425 and is used to drive the second lead screw 425 to rotate. The microscope 410 is arranged on the Y-direction guide rail 424. By controlling the second X-direction driving member 422, the second X-direction driving member 422 can move along the width direction of the second X-direction guide rail 421. Then, by controlling the Y-direction driving member 426, the Y-direction driving member 426 can drive the second lead screw 425 to rotate. Since the Y-direction guide rail 424 is screwed to the second lead screw 425 through the second threaded hole, and the Y-direction guide rail 424 is slidably connected to the second connecting plate 423, the Y-direction guide rail 424 is guided by the second connecting plate 423. When the second lead screw 425 rotates, the Y-direction guide rail 424 can move along the length direction of the wire mesh cloth, so as to realize the movement of the microscope 410 along the length direction and the width direction of the wire mesh cloth.

[0046] As a preferred embodiment, please refer to Figure 7 , the second moving component 420 further includes two first photoelectric switches 427 and a first induction sheet 428. The two first photoelectric switches 427 are respectively arranged at both ends of the Y-direction guide rail 424. The first induction sheet 428 is arranged on the second connecting plate 423. During the reciprocating horizontal movement of the Y-direction guide rail 424 along the length direction of the wire mesh cloth, the two first photoelectric switches 427 alternately generate induction with the first induction sheet 428, so as to reverse the Y-direction guide rail 424, and thus the limit movement position of the Y-direction guide rail 424 can be determined.

[0047] As a preferred embodiment, please refer to Figure 7, the second moving component 420 further includes a second lifting platform 429, which is detachably fixed on the Y-direction guide rail 424 and connected to the microscope 410 and the red light indicator 430. The second lifting platform 429 can move up and down relative to the Y-direction guide rail 424 to adjust the distance between the microscope 410 and the wire mesh cloth, so as to manually adjust the distance between the microscope 410 and the wire mesh cloth to be appropriate, and improve the magnification effect of the microscope 410 on defects.

[0048] As a preferred embodiment, please refer to Figure 1 and Figure 2 , the wire mesh cloth roll detection and repair device further includes a control unit 500, which is used to process the defects photographed by the camera 310, and display the image, type and position information of the defects, and is also used to display the image, type and position information of the magnified defects, so that the defect information is in a visual state.

[0049] As a preferred embodiment, please refer to Figure 1 and Figure 2 , the control unit 500 includes a controller, a first display screen 510, a second display screen 520 and an encoder 530. The controller is electrically connected to the camera 310 and is used to process the defects photographed by the camera 310 and obtain the image, type and position information of the defects. The first display screen 510 is electrically connected to the controller and is used to display the image, type and position information of the defects. The second display screen 520 is electrically connected to the microscope 410 and is used to display the image, type and position information of the magnified defects. The encoder 530 is arranged on the side of the wire mesh cloth and is used to record the moving distance of the wire mesh cloth. The defect detection unit 300 and the defect repair unit 400 are separated by a certain distance (assumed to be 600 mm), and it is assumed that the width of each photograph taken by the camera 310 is 50 mm. When the camera 310 takes a section a on the wire mesh cloth, after twelve scanning cycles, the section a will reach the defect repair unit 400. If there are defects on the section a, they will be displayed on the first display screen 510. After manual confirmation, the camera 310 will continue to take pictures. If there are no defects on the section a, no manual intervention is required and the camera 310 will keep taking pictures. When the defects on the section a reach the defect repair unit 400 and the defects are magnified by the microscope 410, it is convenient for the human eye to judge the defects. If the defects are dirt, bending, dust, etc., the defects can be repaired under the microscope 410 using tools. After the defects are repaired, the current defects are deleted. If the defects are wire breakage, the defects cannot be repaired under the microscope 410 using tools, and they will be recorded in the controller and a report will be generated. The controller is a computer.

[0050] As a preferred embodiment, please refer toFigure 3 and Figure 8 For the silk screen cloth roll detection and repair device described above, it further includes an inkjet coding unit 600. The inkjet coding unit 600 is arranged between the defect detection unit 300 and the defect repair unit 400 and is close to the defect detection unit 300. The inkjet coding unit 600 can move along the width direction of the silk screen cloth for jetting a value on the silk screen cloth. Since the silk screen cloth moves in a step-by-step manner, the distance of each single movement of the silk screen cloth is equal to the shooting width of the camera 310. Since a value needs to be jetted on the silk screen cloth every time it moves, to record the current detection area. After the entire roll of cloth is detected, the area where the irreparable defect is located can be found through this value.

[0051] As a preferred embodiment, please refer to Figure 3 and Figure 8 The inkjet coding unit 600 is arranged directly above the silk screen cloth. It includes an inkjet head 610 and a third moving component 620. The inkjet head 610 is used to jet a value on the silk screen cloth. The third moving component 620 is connected to the inkjet head 610 and is used to drive the inkjet head 610 to move horizontally along the width direction of the silk screen cloth. By controlling the third moving component 620, the third moving component 620 can drive the inkjet head 610 to move horizontally along the width direction of the silk screen cloth, facilitating the inkjet head 610 to jet a value on the silk screen cloth.

[0052] As a preferred embodiment, please refer to Figure 8, the third moving component 620 includes a fixed seat 621, a third X-direction guide rail 622, a third lead screw 623, a transmission member 624 and a third X-direction driving member 625. A third screw hole is formed on the fixed seat 621. The third X-direction guide rail 622 is horizontally arranged along the width direction of the wire mesh cloth and is slidably connected to the fixed seat 621. The inkjet head 610 is fixedly arranged at the end of the third X-direction guide rail 622. The third lead screw 623 is horizontally arranged along the width direction of the wire mesh cloth and penetrates through the third screw hole. The third lead screw 623 is screwed with the third screw hole. Both ends of the third lead screw 623 are rotatably installed on the third X-direction guide rail 622. Both ends of the transmission member 624 are respectively connected to the third lead screw 623 and the third X-direction driving member 625 to convert the rotation of the third X-direction driving member 625 into the rotation of the third lead screw 623. By controlling the third X-direction driving member 625, the output end of the third X-direction driving member 625 rotates. Since the transmission member 624 can convert the rotation of the third X-direction driving member 625 into the rotation of the third lead screw 623, when the third lead screw 623 rotates, since the fixed seat 621 is screwed with the third lead screw 623 through the third screw hole and the third X-direction guide rail 622 is guided by the fixed seat 621, the third X-direction guide rail 622 can move along the width direction of the wire mesh cloth and drive the inkjet head 610 to move along the width direction of the wire mesh cloth.

[0053] As a preferred embodiment, please refer to Figure 8 , the transmission member 624 is a pulley transmission structure to realize converting the rotation of the third X-direction driving member 625 into the rotation of the third lead screw 623.

[0054] As a preferred embodiment, please refer to Figure 2 , the inkjet unit 600 further includes a touch screen 630. A circuit board is built in the touch screen 630. The circuit board is used for electrically connecting with the inkjet head 610 and the third X-direction driving member 625. By operating the touch screen 630, the control of the inkjet head 610 and the third X-direction driving member 625 can be realized.

[0055] As a preferred embodiment, please refer to Figure 3 and Figure 9 , the wire mesh cloth roll detection and repair device further includes a tension adjustment unit 700. The tension adjustment unit 700 is arranged between the defect detection unit 300 and the defect repair unit 400 to adjust the tension of the wire mesh cloth, which can prevent the wire mesh cloth from being damaged due to excessive tension and can also prevent the wire mesh cloth from not being able to move due to too small tension.

[0056] As a preferred embodiment, please refer to Figure 9, the tension adjusting unit 700 includes two bases 710, two fixed rollers 720, a plurality of guide shafts 730, two guide seats 740, a movable roller 750, a plurality of elastic members 760, two second photoelectric switches 770 and two second sensing pieces 780. The two bases 710 are arranged at intervals. The two fixed rollers 720 are both arranged in parallel along the width direction of the wire mesh cloth. Two ends of the fixed roller 720 are respectively fixed to the two bases 710. The upper surfaces of the two fixed rollers 720 are in sliding contact with the wire mesh cloth. Each of the guide shafts 730 is arranged vertically and is respectively fixed on the two bases 710. The movable roller 750 is arranged in parallel between the two fixed rollers 720 along the width direction of the wire mesh cloth. Two ends of the movable roller 750 are respectively fixed to the two guide seats 740. The lower surface of the movable roller 750 is in sliding contact with the wire mesh cloth. Each of the elastic members 760 is respectively arranged on the corresponding guide shaft 730 and is respectively located directly below the corresponding guide seat 740. The lower ends of each of the elastic members 760 are respectively fixed to the corresponding base 710, and the upper ends of each of the elastic members 760 are respectively fixed to the corresponding guide seat 740 to adjust the height of the movable roller 750. The two second photoelectric switches 770 are respectively fixed on the corresponding base 710, and the two second sensing pieces 780 are respectively fixed on the corresponding guide seat 740. During the up and down movement of the guide seat 740, the two second sensing pieces 780 are respectively in contact with the corresponding second photoelectric switches 770. When the two second sensing pieces 780 are respectively in contact with the corresponding second photoelectric switches 770, the wire mesh cloth is in a tensioned state. The wire mesh cloth passes through above the upstream fixed roller 720, reaches below the movable roller 750, and then passes through above the downstream fixed roller 720. The tension adjustment of the wire mesh cloth is mainly achieved by the gravity of the movable roller 750 and the elastic force of each of the elastic members 760.

[0057] As a preferred embodiment, please refer to Figure 9 , the elastic member 760 is a spring, which can release elasticity and cooperate with the gravity of the movable roller 750 to realize the adjustment of the tension of the wire mesh cloth.

[0058] As a preferred embodiment, please refer to Figure 3 and Figure 10 , the wire mesh cloth roll detection and repair device further includes a flattening unit 800. The flattening unit 800 is arranged directly below the defect detection unit 300 and is used to flatten the wire mesh cloth. Since the two ends of the wire mesh cloth will curl, when detecting the wire mesh cloth, it is necessary to flatten the wire mesh cloth to improve the detection effect.

[0059] As a preferred embodiment, please refer to Figure 10, the flattening unit 800 includes a first light source plate 810, a lower pressing plate 820, an upper pressing plate 830 and two telescopic driving members 840. The first light source plate 810, the lower pressing plate 820 and the upper pressing plate 830 are all horizontally arranged from bottom to top along the width direction of the screen plate. The two telescopic driving members 840 are respectively fixedly connected to both ends of the upper pressing plate 830, and are used to drive the upper pressing plate 830 to move up and down, so as to adjust the distance between the upper pressing plate 830 and the lower pressing plate 820, and make the upper pressing plate 830 abut against the screen cloth. Both the lower pressing plate 820 and the upper pressing plate 830 are glass plates. After the screen cloth passes through between the lower pressing plate 820 and the upper pressing plate 830, the two telescopic driving members 840 act simultaneously to drive the upper pressing plate 830 to move downward, flatten the screen cloth, and make the screen cloth closely adhere between the lower pressing plate 820 and the upper pressing plate 830.

[0060] As a preferred embodiment, please refer to Figure 3 and Figure 11 , the screen cloth roll detection and repair device further includes a flattening unit 900. The flattening unit 900 is arranged directly below the defect repair unit 400 to support the screen cloth, so that the defects on the screen cloth are in a flattened state, which is convenient for the microscope 410 to magnify the defects on the screen cloth.

[0061] As a preferred embodiment, please refer to Figure 11 , the flattening unit 900 includes a second light source plate 910 and a flattening plate 920. The second light source plate 910 and the flattening plate 920 are both horizontally arranged from bottom to top along the width direction of the screen plate. The upper surface of the flattening plate 920 is used to abut against the screen plate. The flattening plate 920 is a glass plate, and the second light source plate 910 can illuminate the screen cloth.

[0062] As a preferred embodiment, please refer to Figure 2 , the control unit 500 further includes a control panel 540, and the control panel 540 is used to control the start and stop of the driving member.

[0063] As a preferred embodiment, please refer to Figure 1 and Figure 3, the described wire mesh cloth roll detection and repair device further includes a frame, the frame includes a machine table, a cross beam, a storage box and an ion air bar, the cross beam is fixedly arranged on the machine table, the storage box is fixedly arranged on the cross beam, the ion air bar is arranged directly above the unwinding roller 130 for removing static electricity and dust on the wire mesh cloth, the first active safety chuck 110, the first driven safety chuck 120, the first rotation driving member 154, each of the first slide rails 261, each of the second slide rails 262, the encoder 530, two of the bases 710, and two of the telescopic driving members 840 are all fixedly arranged on the machine table, and the first X-direction guide rail 321, the second X-direction guide rail 421, the first display screen 510, the second display screen 520, and the fixed seat 621 are fixedly arranged on the cross beam.

[0064] For a better understanding of the present invention, the following is a detailed description of the working principle of the technical solution of the present invention in conjunction with Figure 1 - Figure 11 :

[0065] In use, the reel of the wire mesh cloth roll is sleeved on the unwinding roller 130. The unwinding roller 130 is a first air shaft, and a detachable fixed connection with the reel of the wire mesh cloth roll is achieved through a tightening method. The leading end of the wire mesh cloth roll is fixedly wound on the winding roller 230. By controlling the second driving assembly 250 and the second driving assembly 250, the unwinding roller 130 and the winding roller 230 can rotate in the same direction and at the same speed, enabling the wire mesh cloth to move step by step between the unwinding unit 100 and the winding unit 200. By controlling the first moving assembly 320, the first moving assembly 320 can drive the camera 310 to horizontally move along the width direction of the wire mesh cloth. The camera 310 will scan an interval a with a preset width on the wire mesh cloth. If there are defects in this interval a, the camera 310 will take pictures of the defects. After multiple scanning cycles, the interval a will reach the defect repair unit 400. If there are defects in the interval a, they will be displayed on the first display screen 510. After manual confirmation, the camera 310 will continue to take pictures. If there are no defects in the interval a, no manual intervention is required, and the camera 310 will keep taking pictures. When the defects in the interval a reach the defect repair unit 400, by controlling the second moving assembly 420, the second moving assembly 420 can drive the microscope 410 to horizontally move along the length and width directions of the wire mesh cloth. The microscope 410 reaches directly above the defect, and the microscope 410 magnifies the defect, facilitating the human eye to judge the defect. If the defect is dirt, bending, dust, etc., the defect can be repaired under the microscope 410 using tools. After the defect is repaired, the current defect is deleted. If the defect is a broken wire, it cannot be repaired under the microscope 410 using tools, and it will be recorded in the controller and a report will be generated. In the present utility model, by using the camera 310 to find and take pictures of defects and cooperating with the microscope 410 to magnify the defects, the defects can be quickly found, and the found defects can be magnified, facilitating the workers to repair the defects, improving the detection and repair efficiency, and reducing the labor intensity of the workers, and avoiding the situations of missed detection, misdetection, missed repair, and misrepair.

[0066] A wire mesh cloth roll detection and repair device provided by the present utility model has the following beneficial effects:

[0067] (1) Through the tension adjustment unit 700, the tension of the wire mesh cloth can be adjusted, preventing the wire mesh cloth from being damaged due to excessive tension, and also preventing the guiding roller from not rotating or slipping due to too small tension of the wire mesh cloth, so that the encoder 530 cannot obtain accurate data on the movement of the wire mesh cloth;

[0068] (2) The inkjet printing unit 600 can move along the width direction of the wire mesh cloth to print values on the wire mesh cloth. Since the wire mesh cloth moves in a step-by-step manner, the distance of each single movement of the wire mesh cloth is equal to the shooting width of the camera 310. Since a value needs to be printed on the wire mesh cloth every time it moves, to record the current detection area, after the entire roll of cloth is detected, the area where the irreparable defect is located can be found through this value;

[0069] (3) In the present utility model, by using the camera 310 to find and photograph the defects and cooperating with the microscope 410 to magnify the defects, the defects can be quickly found and the found defects can be magnified, which is convenient for workers to repair the defects, improves the detection and repair efficiency, reduces the labor intensity of the workers, and avoids the situations of missed detection, misdetection, missed repair, and misrepair.

[0070] The above specific implementation manners of the present utility model do not constitute a limitation on the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A screen cloth roll detection and repair device, characterized in that: include: An unwinding unit, on which the silk screen cloth roll to be tested is placed; A winding unit is used to wind up the screen cloth after inspection; A defect detection unit is disposed between the unwinding unit and the rewinding unit and is close to the unwinding unit, wherein the defect detection unit comprises a camera, and the camera can be moved along the width direction of the silk screen cloth to photograph defects on the silk screen cloth; The defect repairing unit is arranged between the unwinding unit and the winding unit and is close to the winding unit. The defect repairing unit includes a microscope. The microscope can be moved along the length direction and the width direction of the silk screen cloth to magnify the defects on the silk screen cloth.

2. The screen cloth roll detection and repair device according to claim 1, characterized in that: The defect detection unit is arranged directly above the silk screen cloth, and further comprises a first moving component, wherein the first moving component is connected to the camera and is used for driving the camera to move horizontally along the width direction of the silk screen cloth.

3. The screen cloth roll detection and repair device according to claim 1, characterized in that: The defect repair unit is arranged directly above the silk screen cloth, and also includes a second movable component and a red light indicator. The second movable component is connected to the microscope and is used to drive the microscope to move along the length and width directions of the silk screen cloth. The red light indicator is connected to the second movable component and is used to assist in positioning the microscope.

4. The screen cloth roll detection and repair device according to claim 1, characterized in that: It also includes a control unit, which is used to process the defects photographed by the camera and display the image, type and location information of the defects, and also to display the image, type and location information of the enlarged defects.

5. The screen cloth roll detection and repair device according to claim 4, characterized in that: The control unit includes a controller, a first display screen, a second display screen and an encoder. The controller is electrically connected to the camera to process the defects photographed by the camera and obtain the image, type and location information of the defects. The first display screen is electrically connected to the controller to display the image, type and location information of the defects. The second display screen is electrically connected to the microscope to display the image, type and location information of the magnified defects. The encoder is arranged on the side of the silk screen cloth to record the moving distance of the silk screen cloth.

6. The screen cloth roll detection and repair device according to claim 1, characterized in that: It also includes a coding unit, which is arranged between the defect detection unit and the defect repair unit and close to the defect detection unit. The coding unit can move along the width direction of the silk screen cloth to print numerical values ​​on the silk screen cloth.

7. The screen cloth roll detection and repair device according to claim 6, characterized in that: The coding unit is arranged directly above the silk screen cloth, and comprises a coding terminal and a third movable component. The coding terminal is used to print numerical values ​​on the silk screen cloth, and the third movable component is connected to the coding terminal and is used to drive the coding terminal to move horizontally along the width direction of the silk screen cloth.

8. The screen cloth roll detection and repair device according to claim 1, characterized in that: It also includes a tension adjustment unit, which is arranged between the defect detection unit and the defect repair unit to adjust the tension of the screen cloth.

9. The screen cloth roll detection and repair device according to claim 8, characterized in that: The tension adjustment unit includes two bases, two fixed rollers, a plurality of guide shafts, two guide seats, a movable roller, a plurality of elastic members, two second photoelectric switches and two second sensing sheets. The two bases are arranged at intervals, the two fixed rollers are arranged in parallel along the width direction of the screen cloth, the two ends of the fixed rollers are respectively fixedly connected to the two bases, the upper surfaces of the two fixed rollers are in sliding contact with the screen cloth, each of the guide shafts is vertically arranged and respectively fixedly arranged on the two bases, the movable roller is arranged in parallel between the two fixed rollers along the width direction of the screen cloth, the two ends of the movable roller are respectively fixedly connected to the two guide seats, the lower surface of the movable roller is in sliding contact with the screen cloth, and the lower surface of the movable roller is in sliding contact with the screen cloth. The mesh cloth is slidably abutted, and each of the elastic members is respectively arranged on the corresponding guide shaft and is respectively located directly below the corresponding guide seat. The lower end of each of the elastic members is respectively fixed to the corresponding base, and the upper end of each of the elastic members is respectively fixed to the corresponding guide seat to adjust the height of the movable roller. The two second photoelectric switches are respectively fixed on the corresponding base, and the two second sensing sheets are respectively fixed on the corresponding guide seat. During the up and down movement of the guide seat, the two second sensing sheets are respectively abutted against the corresponding second photoelectric switches. When the two second sensing sheets are respectively abutted against the corresponding second photoelectric switches, the screen cloth is in a tensioned state.

10. The screen cloth roll detection and repair device according to claim 1, characterized in that: It also includes a flattening unit, which is arranged directly below the defect detection unit and is used to flatten the screen cloth.

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