Isolating membrane moving dispensing device and post-dispensing process coating AOI (automated optical inspection) detection assembly

Abstract

The invention belongs to the field of thin film visual inspection, and particularly relates to an isolating membrane moving spot coating device and a post-coating AOI (automatic optical inspection) detection assembly after a spot coating process. A transmission roller is arranged between every two parallel supports. A plurality of transmission rollers are arranged on the detection frame, film products are positioned on the plurality of transmission rollers for transmission, and a plurality of image acquisition modules are arranged above the film products on the detection frame; the image acquisition modules are electrically connected with the control module, and the control module is configured to control the image acquisition modules to acquire surface images of the film products and compare the surface images with samples to detect the surface defects of the current film products.

Description

Technical Field

[0001] The invention belongs to the technical field of thin film visual inspection, and in particular relates to a mobile spot coating device for an isolation film and an AOI inspection assembly after a spot coating process. Background Art

[0002] AOI (Automated Optical Inspection) is automatic optical inspection. The slitting machine AOI combined inspection device integrates the AOI inspection system on the basis of the slitting machine. The slitting machine is mainly used to slit wide materials (such as paper, objects to be inspected, magnetic tapes, etc.) into narrow materials. The AOI inspection part uses optical principles to capture the image of the slit product through a camera, and then uses image processing algorithms to analyze the image to detect product size, shape, surface defects and other quality-related parameters.

[0003] The existing AOI inspection assembly needs to perform surface defect inspection on film products during the film winding and unwinding process. During the surface defect inspection of the film, when defects such as coating misses are detected on the film surface, the system will mark the coating miss points. However, if wrinkles appear in the film product during the transmission process until before the inspection, it will affect the inspection results.

[0004] Therefore, an isolation film mobile dot coating device and a dot coating process and a post-coating AOI inspection assembly are designed to solve the technical problem in the prior art that wrinkles appear on film products before they are transmitted to the inspection, thus affecting the inspection results.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0006] The disclosed embodiments at least provide an isolation film mobile coating device and a post-coating AOI inspection assembly for coating the coating process.

[0007] In a first aspect, the present disclosure provides a post-coating AOI inspection assembly for spot coating, comprising: A detection frame is provided with a plurality of brackets; A transmission roller is arranged between every two mutually parallel brackets; and Film products are transported on several transmission rollers In an optional embodiment, a plurality of image acquisition modules are arranged on the detection frame above the film product; Each of the image acquisition modules is electrically connected to the control module, and the control module is configured to control the image acquisition module to acquire the surface image of the film product and compare the sample to detect the surface defects of the current film product.

[0008] In an optional embodiment, a light emitting element is disposed below the detection end of each of the image acquisition modules; The width of each of the light-emitting elements is greater than the width of the film product; and The surface of each of the light emitting components is in contact with the first liquid flow tube and the second liquid flow tube.

[0009] In an optional embodiment, every two mutually parallel transmission rollers form a group and are located on both sides of the detection end of the image acquisition module; wherein A rotating motor is provided at one end of each set of transmission rollers; and The control module is configured to control the rotation of each rotary motor so that the rotation speed of each group of rotary motors is different, thereby tensioning the film product located below the current image acquisition module.

[0010] In a second aspect, the present disclosure also provides a separation film mobile coating device, including: A spraying mechanism is arranged on the detection frame; The output end of the spraying mechanism is located on one side of the film product on the detection rack to apply spot coating to the surface of the film product; The spray mechanism is suitable for abutting against the light-emitting component provided on the detection frame, so as to utilize the heat energy generated by the light-emitting component when it is working to keep the coating liquid flowing in the spray mechanism warm; and The moving mechanism is connected to the detection frame and is controlled by the control module, thereby driving the output end of the spraying mechanism to move to the position where the film product is to be sprayed.

[0011] In an optional embodiment, the spraying mechanism includes: A spray chamber is arranged on the inspection frame; A pump is connected to the spray chamber, and the output end of the pump is connected to the first liquid flow pipe and the second liquid flow pipe respectively through a three-way valve; wherein The first liquid flow tube and the second liquid flow tube are both in contact with the light-emitting component arranged on the detection frame so as to utilize the heat energy generated by the light-emitting component when it is working to keep the coating liquid flowing in the first liquid flow tube and the second liquid flow tube warm.

[0012] In an optional embodiment, the first liquid flow pipe and the second liquid flow pipe are both connected to the moving mechanism; and The first liquid flow tube and the second liquid flow tube are respectively located above and below the membrane product; wherein The moving mechanism is suitable for driving the first liquid flow tube and the second liquid flow tube to move and apply dots to the upper and lower surfaces of the film product after being started.

[0013] In an optional embodiment, the moving mechanism includes: A fixing frame, arranged on the detection frame; A driver, controlled by a control module, is located on a fixed frame, and an output end of the driver is connected to a rotating shaft; The rotating shaft is provided with a first driven component and a second driven component; wherein The first driven component is connected to the first liquid flow tube, and the second driven component is connected to the second liquid flow tube.

[0014] In an optional embodiment, the first driven component and the second driven component both include: Driving wheel, driven wheel; The driving wheel is connected to the rotating shaft; The transmission belt is sleeved on the surfaces of the driving wheel and the driven wheel; A slide rail is connected to the detection frame, and a moving part is slidably connected to the slide rail; wherein The moving member is connected to the transmission belt so as to move along with the transmission belt when the rotating shaft drives the driving wheel to rotate.

[0015] In an optional embodiment, a coating nozzle is provided on the moving member; wherein The coating nozzle in the first driven component is connected to the first liquid flow tube; and The coating nozzle in the second driven component is connected to the second liquid flow tube.

[0016] The fixing frame is provided with a limiting member; wherein The first liquid flow tube and the second liquid flow tube are arranged on the limiting member so as to remain stable when following the movement of the corresponding moving member.

[0017] The beneficial effect of the present invention is that the device is arranged to abut each liquid flow tube in the spraying mechanism with the light-emitting component on the detection frame, and utilizes the heat generated by the continuous operation of the light-emitting component during the defect detection of the thin film product to heat each liquid flow tube, so as to ensure the temperature of the coating liquid in the liquid flow tube, and the coating liquid can be kept flowing without using an additional heating device.

[0018] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 An overall first-perspective stereogram provided for an embodiment of the present disclosure; Figure 2 An overall second-view stereogram provided for an embodiment of the present disclosure; Figure 3 This is a schematic diagram of the enlarged structure of the moving mechanism provided in an embodiment of the present disclosure.

[0022] In the figure: 1. Spraying mechanism; 10. Spraying chamber; 11. First liquid flow pipe; 12. Second liquid flow pipe; 13. Pump; 14. Three-way valve; 2. Moving mechanism; 20. Fixed frame; 21. Driver; 22. Rotating shaft; 23. Moving member; 231. Coating nozzle; 24. Limiting member; 25. Driving wheel; 26. Driven wheel; 27. Transmission belt; 28. Slide rail; 3. Film products; 30. Bracket; 31. Transmission roller; 4. Detection frame; 40. Light-emitting component; 41. Image acquisition module. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In this article, when it is mentioned that the first component is located on the second component, this may mean that the first component may be directly formed on the second component, or the third component may be interposed between the first component and the second component. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the components may be exaggerated or reduced.

[0025] In this article, when an element or layer is referred to as being "located on," "engaged to," "connected to," "attached to," or "coupled to" another element or layer, it may be directly located on, engaged, connected, attached to, or coupled to another element or layer, or there may be intermediate elements or layers. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to," "directly attached to," or "directly coupled to" another element or layer, there may be no intermediate elements or layers. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0027] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limited. As used herein, the singular articles "one", "an" and "the" may also be intended to include plural forms, unless it is clearly indicated above that this is not the case. The terms "comprise", "include" and "have" are inclusive, and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0028] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0029] It has been found that the coating equipment used for the isolation film coating, such as the glue dispenser, has precise pressure control, and uses the coating to extrude the coating from a tiny needle and coat it on the isolation film surface in the form of dots. The equipment can set the parameters such as the coating position, spacing, and dot size. The isolation film is commonly made of materials such as polyethylene (PE) and polypropylene (PP), and its thickness and flatness will affect the coating effect. After the coating is completed, the film that has been coated needs to be visually inspected. The existing AOI inspection assembly needs to perform surface defect inspection on the film products during the film winding and unwinding process. During the surface defect inspection of the film, when a defect such as missing coating is detected on the film surface, the system will mark the missing coating point, and then re-coat the missing coating point after the entire film is inspected. However, this operation requires the cooperation of the detection device and the dot diagram device, which occupies a large area, and the coating device needs to continuously heat and keep the coating liquid inside its coating tube while waiting for the detection device to detect the film product so that the coating liquid can flow out of the coating tube at the first time when the missing coating point is re-coated later.

[0030] Based on the above research, the embodiments of the present disclosure provide an isolation film mobile dot coating device and a post-dot coating AOI inspection assembly, by setting each liquid flow tube in the spraying mechanism to abut against the light-emitting component on the inspection frame, and using the heat generated by the continuous operation of the light-emitting component during the thin film product defect detection process to heat each liquid flow tube, so as to ensure the temperature of the coating liquid in the liquid flow tube, and the coating liquid can be kept flowing without the use of an additional heating device.

[0031] The defects existing in the above solutions are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present invention in this article for the above problems should be the contributions made by the inventor to the present invention during the disclosure process.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] In a first aspect, the present disclosure provides a separation film mobile dot coating device. In some embodiments, such as Figure 1As shown, when the film product 3 is in the process of transmission and detection in the detection rack 4, the control pump 13 is started, which extracts the coating liquid in the spray chamber 10, and pumps the coating liquid into the first liquid flow tube 11 and the second liquid flow tube 12 through the three-way valve 14. The first liquid flow tube 11 and the second liquid flow tube 12 are fixed to the detection rack 4 by the limit member 24 to prevent the first liquid flow tube 11 and the second liquid flow tube 12 from affecting the coating or detection work due to movement during the subsequent coating process.

[0035] In some embodiments, Figure 2 As shown, in the normal inspection process for film products 3, a number of light-emitting components 40 matching the number of image acquisition modules 41 are required for fill-in lighting. The light-emitting components 40 may preferably be LED lamp tubes, and the outer walls of the first liquid flow tube 11 and the second liquid flow tube 12 are abutted against the outer walls of each light-emitting component 40. At this time, the heat generated by each light-emitting component 40 during operation is used to heat the first liquid flow tube 11 and the second liquid flow tube 12 connected to the outer walls of each light-emitting component 40, so that the coating liquid flowing inside the two components remains in a warm state.

[0036] In some embodiments, Figure 3 As shown, when a surface coating defect is detected for a film product 3 in the transmission process, the control module synchronously controls the driver 21 to start, driving the rotating shaft 22 and two driving wheels 25 fixed to the rotating shaft 22 to rotate, and a transmission belt 27 is sleeved between each driving wheel 25 and the driven wheel 26. Therefore, when the driving wheel 25 rotates, the transmission belt 27 rotates around the driving wheel 25 and the driven wheel 26, thereby driving the moving member 23 fixed to the transmission belt 27 to translate along the guide direction of the slide rail 28 to the coating leakage point above and below the film product 3. As can be seen from the figure, the output ends of the first liquid flow tube 11 and the second liquid flow tube 12 are respectively connected to the coating nozzles 231 on the two moving members 23. At this time, the warm coating liquid inside the two is sprayed through the corresponding coating spray 231 to re-coat the missed inspection points on the upper and lower surfaces of the film product 3; Preferably, a section of the two liquid flow tubes between the limiter 24 and the corresponding coating nozzle 231 is set in a spiral shape so that the two liquid flow tubes can freely follow the corresponding coating nozzle 231 for translation without affecting the overall pipeline of the two liquid flow tubes and thus affecting the front-end detection work.

[0037] On the other hand, the embodiment of the present disclosure further provides an AOI inspection assembly for coating after a spot coating process, which includes an inspection frame 4, and a plurality of brackets 30 are fixed on the inspection frame 4, and a transmission roller 31 is connected to a bearing between each two parallel brackets 30. When a film product 3 is placed on the transmission roller 31, the rotation of each transmission roller 31 is driven to drive the film product 3 to be transmitted in the inspection frame 4, and then an image acquisition module 41 is used to perform coating defect detection on the film product 3 in transmission, and a plurality of light-emitting components 40 are fixed on the inspection frame 4 according to the image acquisition module 41, and the above-mentioned mobile spot coating device is connected to each light-emitting component 40 to detect the heat emitted by the light-emitting component 40 when it is working. The control module receives the detection result of the image acquisition module 41, compares it with the visual detection result of the qualified film product 3, and then controls the driver 21 to start, so that the coating liquid is sprayed out through the corresponding coating spray 231, and the missed inspection parts on the upper and lower surfaces of the film product 3 are re-coated. The irradiation angle of each light-emitting component can be changed according to the spot coating process of the film product currently being detected. For example, the base film spot coating and the ceramic spot coating process have different spot coating process types. In the normal image acquisition and detection process, insufficient contrast will occur. At this time, the operator is required to adjust the irradiation angle of the light-emitting component to the film product in real time according to the different spot coating processes to improve the contrast.

[0038] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0040] Spatially relative terms, such as "inside", "outside", "below", "below", "down", "above", "on", etc., may be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the figure. In addition to the orientation depicted in the figure, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is turned over, the elements described as "below" or "below" other elements or features will be oriented to be "above" other elements or features. Therefore, the example term "below" can cover the orientation above and below. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0041] In the above discussion, unless otherwise stated, the terms "about," "approximately," "substantially," etc., when used to describe a numerical value, mean a variation of + / - 10% of the value.

[0042] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A post-dot coating AOI inspection assembly, characterized in that: include: A detection frame (4) is provided with a plurality of brackets (30); wherein A transmission roller (31) is disposed between every two mutually parallel brackets (30); and The film product (3) is placed on a plurality of transmission rollers (31) for transmission.

2. The post-dot coating AOI inspection assembly according to claim 1, characterized in that: A plurality of image acquisition modules (41) are arranged on the detection frame (4) above the film product (3); Each of the image acquisition modules (41) is electrically connected to the control module, and the control module is configured to control the image acquisition module (41) to acquire a surface image of the film product (3) and compare the sample to detect surface defects of the current film product (3).

3. The post-dot coating AOI inspection assembly according to claim 2, characterized in that: A light emitting element (40) is disposed below the detection end of each image acquisition module (41); wherein The width of each of the light-emitting elements (40) is greater than the width of the film product (3); and The surface of each of the light-emitting components (40) is in contact with the first liquid flow tube (11) and the second liquid flow tube (12).

4. The post-dot coating AOI inspection assembly according to claim 3, characterized in that: Every two mutually parallel transmission rollers (31) form a group and are located on both sides of the detection end of the image acquisition module (41); wherein A rotating motor is provided at one end of each set of transmission rollers (31); and The control module is configured to control the rotation of each rotary motor so that the rotation speed of each group of rotary motors is different, thereby tensioning the film product (3) located below the current image acquisition module (41).

5. A separation film mobile dot coating device, characterized in that: include: A spraying mechanism (1) is arranged on a detection frame (4); The output end of the spraying mechanism (1) is located on one side of the film product (3) on the detection frame (4) to apply spot coating to the surface of the film product (3); wherein The spray mechanism (1) is suitable for abutting against a light-emitting component (40) provided on the detection frame (4) so ​​as to utilize the heat energy generated by the light-emitting component (40) when it is working to keep the coating liquid flowing in the spray mechanism (1) warm; and The moving mechanism (2) is connected to the detection frame (4) and is controlled by the control module, thereby driving the output end of the spraying mechanism (1) to move to the position where the film product (3) is to be sprayed.

6. The separation film moving dot coating device according to claim 5, characterized in that: The spraying mechanism (1) comprises: A spray chamber (10) is arranged on the detection frame (4); A pump (13) is connected to the spray chamber (10), and an output end of the pump (13) is respectively connected to the first liquid flow pipe (11) and the second liquid flow pipe (12) via a three-way valve (14); wherein The first liquid flow tube (11) and the second liquid flow tube (12) are both in contact with a light-emitting component (40) provided on the detection frame (4) so ​​as to utilize the heat energy generated by the light-emitting component (40) when it is in operation to keep the coating liquid flowing in the first liquid flow tube (11) and the second liquid flow tube (12) warm.

7. The isolation film moving dot coating device according to claim 6, characterized in that: The first liquid flow pipe (11) and the second liquid flow pipe (12) are both connected to the moving mechanism (2); and The first liquid flow tube (11) and the second liquid flow tube (12) are respectively located above and below the membrane product (3); wherein The moving mechanism (2) is suitable for driving the first liquid flow tube (11) and the second liquid flow tube (12) to move and apply dots to the upper and lower surfaces of the film product (3) after being started.

8. The isolation film moving dot coating device according to claim 7, characterized in that: The moving mechanism (2) comprises: A fixing frame (20) arranged on the detection frame (4); A driver (21), controlled by a control module, is located on the fixed frame (20), and an output end of the driver (21) is connected to a rotating shaft (22); The rotating shaft (22) is provided with a first driven component and a second driven component; wherein The first driven component is connected to the first liquid flow tube (11), and the second driven component is connected to the second liquid flow tube (12).

9. The isolation film moving dot coating device according to claim 8, characterized in that: The first driven component and the second driven component both include: A driving wheel (25), a driven wheel (26); The driving wheel (25) is connected to the rotating shaft (22); A transmission belt (27) is sleeved on the surfaces of the driving wheel (25) and the driven wheel (26); A slide rail (28) is connected to the detection frame (4), and a moving part (23) is slidably connected to the slide rail (28); wherein The moving member (23) is connected to the transmission belt (27) so as to move along with the transmission belt (27) when the rotating shaft (22) drives the driving wheel (25) to rotate.

10. The separation film moving dot coating device according to claim 9, characterized in that: The moving member (23) is provided with a coating nozzle (231); wherein The coating nozzle (231) in the first driven component is connected to the first liquid flow tube (11); and The coating nozzle (231) in the second driven component is connected to the second liquid flow tube (12).

11. A limiting member (24) is provided on the fixing frame (20); wherein The first liquid flow tube (11) and the second liquid flow tube (12) are arranged on the limiting member (24) so ​​as to remain stable when following the movement of the corresponding moving member (23).

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