A coating apparatus

Abstract

The application discloses a coating equipment and relates to the technical field of coating, which comprises a first unwinding device, a first spraying device, a first drying device and a first winding device; a first flaw detection device and a first labeling device, the first flaw detection device and the first labeling device are both arranged between the first drying device and the first winding device, the first labeling device is arranged at the right side of the first flaw detection device, the first flaw detection device is used for identifying and detecting a plurality of first flaws on the first coating on the first film, the first flaw detection device is electrically connected with the first labeling device, and the first labeling device is used for attaching a plurality of first labels to the edge area of the first film corresponding to the plurality of first flaws respectively, so that part of the structure of the first label extends out of the first film. The operator can subsequently find out and process the part of the first film with the first flaws quickly through the protruding first label, and the efficiency of the operator in processing the flawed finished film is improved.

Description

Technical Field

[0001] This invention relates to the field of coating technology, and in particular to a coating apparatus. Background Technology

[0002] A coating machine is a piece of equipment mainly used in the surface coating process of films, paper, and other materials. It coats a roll of substrate with a layer of specific functional adhesives and inks, and after the coating has solidified and dried, the coated film is wound up. During the coating process, defects such as bubbles, cracks, and particulate impurities may appear on the film due to various reasons. In existing technology, to avoid providing users with defective finished films, a defect detection mechanism is usually installed at the end of the coating machine. However, after the finished film is wound up, subsequent operators cannot quickly identify the defective parts from the roll of finished film, which is detrimental to improving the efficiency of handling defective finished films. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a coating device that improves the efficiency of operators in handling defective finished films.

[0004] A coating apparatus according to an embodiment of the present invention includes:

[0005] A first unwinding device, the first unwinding device being used to unwind a first film;

[0006] A first spraying device is located to the right of the first unwinding device. The first spraying device is used to spray a first coating onto the first film so that the first film is coated with a layer of the first coating.

[0007] A first drying device is located to the right of the first spraying device, and the first drying device is used to dry the first coating on the first film.

[0008] A first winding device is located to the right of the first drying device, and the first winding device is used to wind up the first film.

[0009] A first defect detection device and a first labeling device are both disposed between the first drying device and the first winding device. The first labeling device is disposed to the right of the first defect detection device. The first defect detection device is used to identify and detect multiple first defects on the first coating on the first film. The first defect detection device is electrically connected to the first labeling device. The first labeling device is used to attach multiple first labels to the edge areas of the first film corresponding to the multiple first defects, so that a portion of the structure of the first label extends out of the first film.

[0010] It has at least the following beneficial effects:

[0011] The first unwinding device unwinds the first film from a roll, and the first film moves from left to right. A first spraying device located to the right of the first unwinding device sprays a first coating onto the first film, coating it with a layer of the first coating. Next, the first film and the first coating on it enter a first drying device located to the right of the first spraying device, where the first drying device dries the first coating on the first film. After exiting the first drying device, the first film passes sequentially through a first defect detection device and a first labeling device. Finally, a first winding device located to the right of the first drying device winds the first film back up, resulting in a finished roll of first film. The first defect detection device can detect and identify various first defects on the first coating, and the first labeling device can affix a first label corresponding to the first defect to the edge area of ​​the first film corresponding to the first defect, based on the different types of first defects. After the first winding device winds up the first film, the first label extends beyond the first film, allowing it to protrude from the end face of the rolled film. This facilitates the operator's ability to quickly and accurately identify and address any defects on the first film using the protruding label, thus improving the efficiency of processing defective finished films. Since different first labels correspond to different defects, the operator can determine the type of defect present on the portion of the first film with the label by identifying the type of first label.

[0012] According to an embodiment of the coating apparatus of the present invention, the first defect detection device includes a first camera, a first processor, and a first controller. The first camera, the first processor, and the first controller are electrically connected in sequence. The first camera is used to take a picture of the first coating on the first film from top to bottom. The first processor is used to perform image processing on the picture taken by the first camera. The first controller is used to control the first labeling device.

[0013] According to an embodiment of the coating apparatus of the present invention, the first defect detection device further includes a first lamp, which is used to irradiate the first coating on the first film from top to bottom.

[0014] According to an embodiment of the present invention, the coating apparatus of the first labeling device includes a first conveying mechanism and a plurality of first label conveying mechanisms. The plurality of first label conveying mechanisms are arranged in a left-right direction. The plurality of first label conveying mechanisms are respectively used to convey a variety of first labels. The first conveying mechanism is used to convey one of the first labels on one of the first label conveying mechanisms to the edge region of the first film corresponding to a first defect.

[0015] According to an embodiment of the coating apparatus of the present invention, the first conveying mechanism includes a first suction cup assembly and a first xyz axis drive assembly. The output end of the first xyz axis drive assembly is connected to the first suction cup assembly. The first xyz axis drive assembly can drive the first suction cup assembly to move along the up-down direction, the left-right direction and the front-back direction. The first suction cup assembly is used to adsorb one of the first labels on one of the first label conveying mechanisms and release one of the first labels, so that one of the first labels can fall and adhere to the edge area of ​​the first film.

[0016] According to an embodiment of the coating apparatus of the present invention, the first labeling device further includes a support plate, the gap between the support plate and the first suction cup assembly is used for the first film to pass through, and the support plate can abut against the first film.

[0017] According to an embodiment of the coating apparatus of the present invention, the first label conveying mechanism includes a first unwinding wheel, a first traction wheel, and a first winding wheel. The first unwinding wheel is used to unwind a first release paper with the first label attached to it, the first traction wheel is used to wind the first release paper around it, and the first winding wheel is used to wind the first release paper.

[0018] The coating apparatus according to an embodiment of the present invention further includes a first preheating device, which is disposed between the first unwinding device and the first spraying device, and is used to preheat the first film.

[0019] According to an embodiment of the present invention, the coating apparatus further includes a first web-correcting device, which is disposed between the first drying device and the first winding device. The first web-correcting device is used to keep the end faces of the first film wound by the first winding device flush.

[0020] According to an embodiment of the present invention, the coating apparatus further includes a second unwinding device, a second spraying device, a second drying device, and a second winding device. The second unwinding device is used to unwind a second film and is located to the right of the first winding device. The second spraying device is located above the first winding device and is used to spray a second coating onto the second film to coat the second film with a layer of the second coating. The second drying device is located to the left of the second spraying device and above the first drying device and is used to dry the second coating on the second film. The second winding device is located to the lower left of the second drying device and to the left of the first unwinding device and is used to wind up the second film.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the coating equipment according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the first unwinding device in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the first preheating device in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the first spraying device in an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the first defect detection device, the first labeling device, the first release paper, the first label, the first film, and the first coating in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the first label attached to the edge region of the first film in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the first suction cup assembly, the first film, and the support plate in an embodiment of the present invention;

[0030] Figure label:

[0031] First unwinding device 100; first spraying device 110; first drying device 120; first winding device 130; first preheating device 140; first web guiding device 150;

[0032] First defect detection device 200; First camera 210;

[0033] First labeling device 300; first label conveying mechanism 310; first unwinding roller 311; first traction roller 312; first winding roller 313; first suction cup assembly 320; support plate 330;

[0034] Second unwinding device 400; second spraying device 410; second drying device 420; second winding device 430; second preheating device 440; second alignment device 450;

[0035] Second defect detection device 500; second labeling device 600. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0038] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0039] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0040] refer to Figures 1 to 5 The coating apparatus according to an embodiment of the present invention includes:

[0041] The first unwinding device 100 is used to unwind the first film;

[0042] The first spraying device 110 is located to the right of the first unwinding device 100. The first spraying device 110 is used to spray the first coating onto the first film so that the first film is coated with a layer of the first coating.

[0043] The first drying device 120 is located to the right of the first spraying device 110 and is used to dry the first coating on the first film.

[0044] The first winding device 130 is located to the right of the first drying device 120 and is used to wind up the first film.

[0045] The first defect detection device 200 and the first labeling device 300 are both located between the first drying device 120 and the first winding device 130. The first labeling device 300 is located to the right of the first defect detection device 200. The first defect detection device 200 is used to identify and detect various first defects on the first coating on the first film. The first defect detection device 200 is electrically connected to the first labeling device 300. The first labeling device 300 is used to attach various first labels to the edge areas of the first film corresponding to the various first defects, so that a portion of the structure of the first label extends out of the first film.

[0046] Understandably, the first unwinding device 100 unwinds the first film from a roll, and the first film moves from left to right. The first spraying device 110, located to the right of the first unwinding device 100, sprays a first coating onto the first film, resulting in a layer of the first coating on the first film. Next, the first film and the first coating on it enter the first drying device 120, located to the right of the first spraying device 110, where the first drying device 120 dries the first coating on the first film. After exiting the first drying device 120, the first film passes sequentially through the first defect detection device 200 and the first labeling device 300. Finally, the first winding device 130, located to the right of the first drying device 120, winds up the first film, resulting in a finished roll of first film. The first defect detection device 200 can detect and identify various first defects on the first coating, and then the first labeling device 300 can affix a first label corresponding to the first defect to the edge area of ​​the first film corresponding to the first defect, based on the different types of first defects. After the first winding device 130 winds up the first film, the first label extends beyond the first film, allowing it to protrude from the end face of the rolled first film. This facilitates the operator's ability to quickly and accurately identify and address the first defective portion of the first film using the protruding label, improving the efficiency of handling defective finished films. Since different first labels correspond to different first defects, the operator can determine the type of first defect present on the portion of the first film with the attached label by identifying the type of first label.

[0047] It should be explained that in this invention, the first label includes an adhesive side and a smooth side, and the first label adheres to the first film via the adhesive side. In this invention, the various first defects specifically include cracks, particulate matter, and bubbles on the first coating. The various first labels correspond to the various first defects; in this invention, there are three types of first labels, each corresponding to one of the three first defects: cracks, particulate matter, and bubbles on the first coating. The difference between the three types of first labels is their color.

[0048] Specifically, after exiting the first drying device 120, the first film sequentially passes through the first defect detection device 200 and the first labeling device 300. First, the first defect detection device 200 detects and identifies a first defect in the coating on the first film. When the first defect detection device 200 detects a crack in the first coating, it generates a first signal and transmits it to the first labeling device 300. Upon receiving the first signal, the first labeling device 300 affixes a first label corresponding to the crack to the edge area of ​​the first film corresponding to the crack. When the first defect detection device 200 detects particulate matter in the first coating, it generates a second signal and... The first labeling device 300 receives the second signal and affixes the first label corresponding to the particulate foreign object to the edge area of ​​the first film corresponding to the particulate foreign object. When the first defect detection device 200 detects and identifies bubbles in the first coating, the first defect detection device 200 generates a third signal and transmits the third signal to the first labeling device 300. After receiving the third signal, the first labeling device 300 affixes the first label corresponding to the bubble to the edge area of ​​the first film corresponding to the bubble.

[0049] refer to Figure 6 It should be explained that the first label is affixed to the edge area of ​​the first film corresponding to the first defect. After the first label is affixed to the edge area of ​​the first film, the first defect exists on the first coating corresponding to the first label in the direction parallel to the front and back.

[0050] refer to Figure 1 The coating equipment also includes a second unwinding device 400, a second spraying device 410, a second drying device 420, and a second winding device 430. The second unwinding device 400 is used to unwind the second film and is located to the right of the first winding device 130. The second spraying device 410 is located above the first winding device 130 and is used to spray the second coating onto the second film so that the second film is coated with a layer of the second coating. The second drying device 420 is located to the left of the second spraying device 410 and is located above the first drying device 120. The second drying device 420 is used to dry the second coating on the second film. The second winding device 430 is located to the lower left of the second drying device 420 and is located to the left of the first unwinding device 100. The second winding device 430 is used to wind up the second film.

[0051] Understandably, while the first unwinding device 100, the first spraying device 110, the first drying device 120, and the first winding device 130 are operating, the second unwinding device 400 unwinds the rolled second film. The second film first moves upward, and the second spraying device 410, located above the first winding device 130, sprays a second coating onto the second film, coating it with a layer of the second coating. Next, the second film moves to the left, and the second film and the second coating on it enter the second drying device 420, located to the left of the second spraying device 410, where the second drying device 420 dries the second coating on the second film. Finally, the second film moves downward to the left, and the second winding device 430, located to the left of the first unwinding device 100, winds it up, resulting in a rolled finished second film. This coating equipment can simultaneously coat two films, which helps improve the production efficiency of the finished film. On the other hand, the second spraying device 410 is located above the first winding device 130, and the second drying device 420 is located above the first drying device 120, which reduces the floor space occupied by the coating equipment and helps to improve the utilization rate of the factory floor space.

[0052] In this embodiment of the invention, the coating equipment further includes a face-changing mechanism, which is located between the second coating spraying device 410 and the first drying device 120. The face-changing mechanism is used to pull the film and rotate it 180°, so that the second coating spraying device 410 can spray the other side of the film. For example, after the first spraying device 110 sprays one side of the film, the film passes through the face-changing mechanism, and then the second spraying device 410 can spray the other side of the film, thus completing the double-sided coating of the film. In the double-sided coating of the film, the film is sequentially wound around the first unwinding device 100, the first spraying device 110, the first drying device 120, the face-changing mechanism, the second spraying device 410, the second drying device 420, and the second winding device 430. By winding the film around different devices, not only can single-sided coating of two films be completed, but also double-sided coating of a single film can be completed.

[0053] In this embodiment of the invention, the coating equipment further includes a first microgravure coating device, a second microgravure coating device, a first switching device, and a second switching device. The first microgravure coating device is disposed between the first unwinding device 100 and the first drying device 120, and is connected to the first spraying device 100 via the first switching device. The second microgravure coating device is disposed between the second unwinding device 400 and the second drying device 420, and is connected to the second spraying device 410 via the second switching device. It should be explained that microgravure coating employs a microgroove coating technology. This technology uses tiny grooves to contain the coating liquid, and then uses a uniformly distributed doctor blade to wipe away excess liquid, leaving only the liquid in the grooves, which is then transferred to the film. In this invention, the first switching device enables rapid switching between the first microgravure coating device and the first spraying device 100, allowing the first spraying device 100 to spray-coat one side of a film, or the second microgravure coating device to perform microgravure coating on one side of a film. Similarly, the second switching device enables rapid switching between the second microgravure coating device and the second spraying device 410, allowing the second spraying device 410 to spray-coat one side of another film, or the second microgravure coating device to perform microgravure coating on one side of another film. This coating equipment can perform both spray coating and microgravure coating processes, improving its versatility. Furthermore, this coating equipment can also perform microgravure coating on both sides of the same film, or spray-coat one side of the film and perform microgravure coating on the other side.

[0054] refer to Figure 5 The first defect detection device 200 includes a first camera 210, a first processor, and a first controller. The first camera 210, the first processor, and the first controller are electrically connected in sequence. The first camera 210 is used to photograph the first coating on the first film from above. The first processor is used to perform image processing on the photograph taken by the first camera 210. The first controller is used to control the first labeling device 300. It is understood that the first camera 210 is positioned above the first film. The first camera 210 is used to photograph the first coating on the first film and transmit the photograph to the first processor. After receiving the photograph, the first processor performs image processing on the photograph to identify whether a first defect exists on the first coating in the photograph. When the first processor identifies a first defect on the first coating in the photograph, the first processor transmits a signal to the first controller, and then the first controller controls the first labeling device 300 to perform relevant actions.

[0055] As an embodiment of the present invention, the first defect detection device 200 further includes a first lamp for illuminating the first coating on the first film from above. It is understood that the first lamp can provide better shooting conditions for the first camera 210, which is beneficial to improving the accuracy of the first processor in identifying the first defect on the first coating in the photograph.

[0056] refer to Figure 5 The first labeling device 300 includes a first conveying mechanism and a plurality of first label conveying mechanisms 310. The plurality of first label conveying mechanisms 310 are arranged in a left-right direction and are used to convey various first labels. The first conveying mechanism is used to move one of the first labels from one of the first label conveying mechanisms 310 to the edge region of the first film corresponding to a first defect. It can be understood that in this embodiment of the invention, the number of first label conveying mechanisms 310 is three, and the three first label conveying mechanisms 310 correspond to three different first defects, namely, cracks, particulate matter, and bubbles on the first coating. When the first defect detection device 200 detects a crack in the first coating, the first transport mechanism transports the first label on the first label transport mechanism 310 corresponding to the crack to the edge area of ​​the first film, so that the first label corresponding to the crack adheres to the first film; when the first defect detection device 200 detects particulate foreign matter in the first coating, the first transport mechanism transports the first label on the first label transport mechanism 310 corresponding to the particulate foreign matter to the edge area of ​​the first film, so that the first label corresponding to the particulate foreign matter adheres to the first film; when the first defect detection device 200 detects air bubbles in the first coating, the first transport mechanism transports the first label on the first label transport mechanism 310 corresponding to the air bubble to the edge area of ​​the first film, so that the first label corresponding to the air bubble adheres to the first film.

[0057] refer to Figure 5The first conveying mechanism includes a first suction cup assembly 320 and a first xyz axis drive assembly (not shown in the figure). The output end of the first xyz axis drive assembly is connected to the first suction cup assembly 320. The first xyz axis drive assembly can drive the first suction cup assembly 320 to move in the up-down direction, the left-right direction and the front-back direction. The first suction cup assembly 320 is used to adsorb a first label on one of the first label conveying mechanisms 310 and release a first label so that the first label can fall and adhere to the edge area of ​​the first film. Understandably, the first xyz axis drive assembly is electrically connected to the first controller. The first xyz axis drive assembly drives the first suction cup assembly 320 to move horizontally, so that the first suction cup assembly 320 can move above one of the first label conveying mechanisms 310. Then, the first xyz axis drive assembly drives the first suction cup assembly 320 to descend, and the first suction cup assembly 320 abuts against and adsorbs the smooth surface of the first label on one of the first label conveying mechanisms 310. Next, the first xyz axis drive assembly drives the first suction cup assembly 320 to move horizontally, so that the first suction cup assembly 320 and the first label on the first suction cup assembly 320 are aligned with the edge area of ​​the first film corresponding to the first defect. Finally, the first suction cup assembly 320 releases the first label, so that the first label falls naturally, and the adhesive surface of the first label abuts against and adheres to the first film.

[0058] refer to Figure 7 The first labeling device 300 also includes a support plate 330. The gap between the support plate 330 and the first suction cup assembly 320 is used for the first film to pass through. The support plate 330 can abut against the first film. Since the first label has a certain weight, when the falling first label abuts against the first film, it will cause the first film to deform downwards and vibrate. It can be understood that the gap between the support plate 330 and the first suction cup assembly 320 is used for the first film to pass through. When the naturally falling first label abuts against the first film, the first film will deform downwards. At this time, the support plate 330 can abut against the first film, providing support for the first film, preventing the first film from continuing to deform downwards, and hindering the vibration of the first film, effectively improving the stability of the first film's movement, thereby improving the yield of the finished first film.

[0059] refer to Figure 5The first label conveying mechanism 310 includes a first unwinding roller 311, a first traction roller 312, and a first winding roller 313. The first unwinding roller 311 is used to unwind a roll of first release paper with first labels attached. The first traction roller 312 is used to wind the first release paper around it. The first winding roller 313 is used to wind the first release paper. Understandably, the first unwinding roller 311 unwinds a roll of first release paper with multiple first labels attached. Then, the first suction cup assembly 320 adsorbs the first labels attached to the first release paper. Next, the first labels detach from the release paper, and finally, the first winding roller 313 winds up the first release paper. After the first suction cup assembly 320 adsorbs the first labels above the first traction roller 312, the first unwinding roller 311 and the first winding roller 313 rotate synchronously and then stop, allowing the next first label to be positioned above the first traction roller 312, awaiting adsorption by the first suction cup assembly 320.

[0060] refer to Figure 1 and Figure 3 The coating equipment also includes a first preheating device 140, which is located between the first unwinding device 100 and the first spraying device 110. The first preheating device 140 is used to preheat the first film. It is understood that preheating can raise the temperature of the first film, which helps to improve the uniformity and adhesion of the first coating; on the other hand, preheating can cause the first film to spread out to avoid wrinkles.

[0061] refer to Figure 1 The coating equipment also includes a first web guiding device 150, which is located between the first drying device 120 and the first winding device 130. The first web guiding device 150 is used to keep the end faces of the first film wound by the first winding device 130 flush. Specifically, the first web guiding device 150 can pull the first film, and can drive the first film wound around the first web guiding device 150 to move back and forth, so that the first film is always kept within a preset range, thereby ensuring that the end faces of the first film wound by the first winding device 130 remain flush.

[0062] In this embodiment of the invention, the first drying device 120 and the second drying device 420 are both drying ovens, and the first preheating device 140 and the second preheating device 440 are both preheating ovens.

[0063] refer to Figure 1In this embodiment of the invention, the coating equipment further includes a second defect detection device 500 and a second labeling device 600. Both the second defect detection device 500 and the second labeling device 600 are disposed between the second drying device 420 and the second winding device 430, with the second defect detection device 500 located to the right of the second labeling device 600. The second defect detection device 500 has the same structure as the first defect detection device 200, and the second labeling device 600 has the same structure as the first labeling device 300. The coating equipment also includes a second preheating device 440 and a second web guiding device 450. The second preheating device 440 is disposed between the second unwinding device 400 and the second spraying device 410, and the second web guiding device 450 is disposed between the second drying device 420 and the second winding device 430.

[0064] In this embodiment of the invention, the first film sequentially passes through a first unwinding device 100, a first preheating device 140, a first spraying device 110, a first drying device 120, a first web-correcting device 150, a first defect detection device 200, a first labeling device 300, and a first winding device 130; the second film sequentially passes through a second unwinding device 400, a second preheating device, a second spraying device 410, a second drying device 420, a second web-correcting device 450, a second defect detection device 500, a second labeling device 600, and a second winding device 430. The first film and the second film are the same type of film.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A coating device, characterized in that, include: A first unwinding device, the first unwinding device being used to unwind a first film; A first spraying device is located to the right of the first unwinding device. The first spraying device is used to spray a first coating onto the first film so that the first film is coated with a layer of the first coating. A first drying device is located to the right of the first spraying device, and the first drying device is used to dry the first coating on the first film. A first winding device is located to the right of the first drying device, and the first winding device is used to wind up the first film. A first defect detection device and a first labeling device are both disposed between the first drying device and the first winding device. The first labeling device is disposed to the right of the first defect detection device. The first defect detection device is used to identify and detect multiple first defects on the first coating on the first film. The first defect detection device is electrically connected to the first labeling device. The first labeling device is used to attach multiple first labels to the edge area of ​​the first film corresponding to the multiple first defects, so that a portion of the structure of the first label extends out of the first film. The first labeling device includes a first conveying mechanism and a plurality of first label conveying mechanisms. The plurality of first label conveying mechanisms are arranged in a left-right direction. The plurality of first label conveying mechanisms are respectively used to convey a variety of first labels. The first conveying mechanism is used to convey one of the first labels on one of the first label conveying mechanisms to the edge area of ​​the first film corresponding to one of the first defects. The first conveying mechanism includes a first suction cup assembly and a first xyz axis drive assembly. The output end of the first xyz axis drive assembly is connected to the first suction cup assembly. The first xyz axis drive assembly can drive the first suction cup assembly to move in the up-down direction, the left-right direction, and the front-back direction. The first suction cup assembly is used to adsorb one of the first labels on one of the first label conveying mechanisms and release one of the first labels, so that one of the first labels can fall and adhere to the edge area of ​​the first film.

2. The coating equipment according to claim 1, characterized in that: The first defect detection device includes a first camera, a first processor, and a first controller. The first camera, the first processor, and the first controller are electrically connected in sequence. The first camera is used to take a picture of the first coating on the first film from top to bottom. The first processor is used to perform image processing on the picture taken by the first camera. The first controller is used to control the first labeling device.

3. The coating equipment according to claim 2, characterized in that: The first defect detection device further includes a first lamp, which is used to illuminate the first coating on the first film from above.

4. The coating equipment according to claim 1, characterized in that: The first labeling device further includes a support plate, and the gap between the support plate and the first suction cup assembly is used for the first film to pass through, and the support plate can abut against the first film.

5. The coating equipment according to claim 1, characterized in that: The first label conveying mechanism includes a first unwinding wheel, a first traction wheel, and a first winding wheel. The first unwinding wheel is used to unwind the first release paper with the first label attached to it, the first traction wheel is used to wind the first release paper, and the first winding wheel is used to wind the first release paper.

6. The coating equipment according to claim 1, characterized in that: It also includes a first preheating device, which is located between the first unwinding device and the first spraying device, and is used to preheat the first film.

7. The coating equipment according to claim 1, characterized in that: It also includes a first web-correcting device, which is located between the first drying device and the first winding device. The first web-correcting device is used to keep the end face of the first film wound by the first winding device flush.

8. The coating equipment according to claim 1, characterized in that: It also includes a second unwinding device, a second spraying device, a second drying device, and a second winding device. The second unwinding device is used to unwind the second film and is located to the right of the first winding device. The second spraying device is located above the first winding device and is used to spray a second coating onto the second film so that a layer of the second coating is coated on the second film. The second drying device is located to the left of the second spraying device and above the first drying device. The second drying device is used to dry the second coating on the second film. The second winding device is located to the lower left of the second drying device and to the left of the first unwinding device. The second winding device is used to wind up the second film.

Images