AOI (automated optical inspection) detection assembly for coating after dispensing process of isolating membrane and visual detection device

Abstract

The invention is suitable for the technical field of thin film visual inspection, and particularly relates to a post-coating AOI (automatic optical inspection) detection assembly and a visual inspection device for an isolating membrane spot coating process, and the device comprises a plurality of groups of tensioning mechanisms which are arranged in parallel; wherein each tensioning mechanism is controlled by a control module so as to convey to-be-detected film products on the corresponding tensioning mechanism; the first reflection detection mechanism and the second reflection detection mechanism are respectively arranged on the upper side and the lower side of the to-be-detected film product; and the control module is electrically connected with the first reflection detection mechanism and the second reflection detection mechanism, and is configured to control the first reflection detection mechanism and the second reflection detection mechanism to perform visual detection on the upper surface and the lower surface of the to-be-detected film product.

Description

Technical Field

[0001] The present invention is suitable for the field of thin film visual inspection, and specifically relates to an isolation film spot coating process post-coating AOI inspection assembly and a visual inspection device. 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. The inspection method is single, and only one side of the film is inspected. After the inspection is completed, the film is turned over and transmitted to inspect the other side of the film. The operation is cumbersome and the inspection efficiency is low.

[0004] Therefore, an isolation film dot coating process and a post-coating AOI inspection assembly and a visual inspection device are designed to solve the technical problem in the prior art that the upper and lower surfaces of the film cannot be visually inspected simultaneously.

[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 spot coating process and a post-coating AOI inspection assembly and a visual inspection device.

[0007] In a first aspect, an embodiment of the present disclosure provides a visual detection device, comprising: A plurality of tensioning mechanisms are arranged in parallel with each other; Each of the tensioning mechanisms is controlled by a control module, thereby transmitting the film product to be inspected on the corresponding tensioning mechanism; The first reflection detection mechanism and the second reflection detection mechanism are respectively arranged on the upper and lower sides of the film product to be detected; and The control module is electrically connected to the first reflection detection mechanism and the second reflection detection mechanism respectively, and is configured to control the first reflection detection mechanism and the second reflection detection mechanism to respectively perform visual inspection on the upper and lower surfaces of the film product to be inspected.

[0008] In an optional embodiment, each group of the tensioning mechanisms comprises: A pair of brackets, and a pair of rotating shafts are arranged in parallel on the opposite sides of the two brackets; Each rotating shaft is provided with a transmission roller, and each rotating shaft is electrically connected to a control module and is controlled to rotate by the control module; The film product to be inspected is staggered and transmitted between two transmission rollers to form a horizontal section between each set of tensioning mechanisms; and The first reflection detection mechanism and the second reflection detection mechanism are located at the upper and lower sides of one of the horizontal sections to perform visual detection on the surface of the film product to be detected.

[0009] In an optional implementation, the first reflection detection mechanism includes: A first visual detector is disposed above one of the horizontal sections and is adapted to perform a reflective visual inspection on the upper surface of the film product to be inspected under the control of the control module; and The first fill light is located at one side of the first reflective visual detector, and the illumination direction of the first fill light is consistent with the detection direction of the first reflective visual detector.

[0010] In an optional implementation, the second reflection detection mechanism includes: a second visual detector, disposed below one of the horizontal sections and adapted to perform a reflective visual inspection on the lower surface of the film product to be inspected under the control of the control module; and The second fill light is located at one side of the second reflective visual detector, and the illumination direction of the second fill light is consistent with the detection direction of the second reflective visual detector.

[0011] In an optional embodiment, a transmission mechanism is provided on one side of the film product to be inspected; The transmission mechanism comprises: A transmission visual detector is electrically connected to the control module and performs transmission visual inspection on the film product to be inspected under the control of the control module; and The transmissive fill light component and the transmissive visual detector are respectively located on two sides of the film product to be inspected, and the inspection directions of the two are opposite.

[0012] In a second aspect, the embodiment of the present disclosure further provides an isolation film spot coating process and a post-coating AOI inspection assembly, comprising: A detection frame, on which a first visual detector is disposed; The placement rack is arranged on one side of the detection rack; wherein A feeding roller is arranged on the placing rack, and a material roll is arranged on the feeding roller; and A visual inspection apparatus as described above.

[0013] In an optional embodiment, the visual detection device includes: A plurality of tensioning mechanisms are arranged in parallel with each other; Each of the tensioning mechanisms is controlled by a control module, thereby transmitting the film product to be inspected on the corresponding tensioning mechanism; The first reflection detection mechanism and the second reflection detection mechanism are respectively arranged on the upper and lower sides of the film product to be detected; and The control module is electrically connected to the first reflection detection mechanism and the second reflection detection mechanism respectively, and is configured to control the first reflection detection mechanism and the second reflection detection mechanism to respectively perform visual inspection on the upper and lower surfaces of the film product to be inspected.

[0014] In an optional embodiment, each group of the tensioning mechanisms comprises: A pair of brackets, and a pair of rotating shafts are arranged in parallel on the opposite sides of the two brackets; Each rotating shaft is provided with a transmission roller, and each rotating shaft is electrically connected to a control module and is controlled to rotate by the control module; The film product to be inspected is staggered and transmitted between two transmission rollers to form a horizontal section between each set of tensioning mechanisms; and The first reflection detection mechanism and the second reflection detection mechanism are located at the upper and lower sides of one of the horizontal sections to perform visual detection on the surface of the film product to be detected.

[0015] In an optional implementation, the first reflection detection mechanism includes: A first visual detector is disposed above one of the horizontal sections and is adapted to perform a reflective visual inspection on the upper surface of the film product to be inspected under the control of the control module; and A first fill light component is located at one side of the first reflective visual detector, and the illumination direction of the first fill light component is consistent with the detection direction of the first reflective visual detector; The second reflection detection mechanism comprises: a second visual detector, disposed below one of the horizontal sections and adapted to perform a reflective visual inspection on the lower surface of the film product to be inspected under the control of the control module; and The second fill light is located at one side of the second reflective visual detector, and the illumination direction of the second fill light is consistent with the detection direction of the second reflective visual detector.

[0016] In an optional embodiment, a transmission mechanism is provided on one side of the film product to be detected; The transmission mechanism comprises: A transmission visual detector is electrically connected to the control module and performs transmission visual inspection on the film product to be inspected under the control of the control module; and The transmissive fill light component and the transmissive visual detector are respectively located on two sides of the film product to be inspected, and the inspection directions of the two are opposite.

[0017] The beneficial effect of the present invention is that the device can synchronously perform defect detection on the upper and lower surfaces of the film product to be inspected during its transmission by respectively arranging reflective detection mechanisms on the upper and lower surfaces of the film product to be inspected, and in order to ensure the clarity of the image of the visual inspection, a fill light is correspondingly arranged on one side of each visual detector to improve the image clarity.

[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 A plan view of a visual inspection device provided by an embodiment of the present disclosure; Figure 2 An overall plan view provided for an embodiment of the present disclosure; Figure 3 An overall stereoscopic diagram of an embodiment of the present disclosure is provided.

[0022] In the figure: 1. First reflection detection mechanism; 10. First visual detector; 11. First fill light; 2. Second reflection detection mechanism; 20. Second visual detector; 21. Second fill light; 3. Film products to be tested; 30. Material rolls; 4. tensioning mechanism; 40. bracket; 41. rotating shaft; 42. transmission roller; 5. Detection rack; 50. Placement rack; 51. Feeding roller; 6. Transmission mechanism; 60. Transmission visual detector; 61. Transmission fill light. 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] According to research, the coating equipment used for the isolation film, such as the dispensing machine, has precise pressure control, and uses the coating to extrude the coating from a tiny needle and apply 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 polyethylene (PE) and polypropylene (PP). Its thickness and flatness will affect the coating effect. After the coating is completed, the film needs to be visually inspected. The existing AOI inspection assembly has a single detection method for the surface defect detection of the film during the film winding and unwinding process. It only detects one side of the film. After the inspection is completed, the film is turned over and transmitted to inspect the other side of the film. The operation is cumbersome and the inspection efficiency is low.

[0030] Based on the above research, the embodiments of the present disclosure provide an AOI inspection assembly and a visual inspection device for post-coating of an isolation film dot coating process. By respectively arranging reflective detection mechanisms on the upper and lower surfaces of the film products to be inspected, defect inspection can be performed synchronously on the upper and lower surfaces of the film products to be inspected during transmission. In order to ensure the clarity of the image during visual inspection, a fill light is arranged on one side of each visual detector to improve image clarity.

[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 some embodiments, Figure 1 As shown, a plurality of brackets 40 are arranged parallel to each other, and before the test, the operator manually passes the film product 3 to be tested through the surface of the transmission roller 42 on each bracket 40 in an interlaced manner, and stretches the film product 3 to be tested into a Figure 1 At least two plane sections 32 are shown, and then the control module controls the first visual detector 10 and the second visual detector 20 to start, and the two perform visual inspection on the surface of the film product 3 to be inspected from the upper and lower sides of the film product 3 to be inspected, for example, for defect inspection such as missing points, insufficient points, and multiple points on the coating film surface. While inspecting, the first fill light 11 and the second fill light 21 are turned on, and the two are arranged at the upper and lower surfaces of the film product 3 to be inspected, and fill light is performed on the upper and lower surfaces of the film product to be inspected, so as to assist the corresponding visual detectors of the two, so that the images taken by each visual detector are clear; Furthermore, the first and second visual detectors can be arranged above and below the first plane section 32, and then a transmission visual detector 60 is fixed above the other plane section 32, facing the upper surface of the film product 3 to be inspected, and a transmission fill light 61 is synchronously arranged below the plane section 32. The transmission visual detector 60 is used for common defect detection such as pinholes, oil stains, black spots, etc.; Specifically, for different problems that arise during the thin film inspection process after spot coating is completed, such as the problem of low reflection contrast during ceramic spot coating inspection, it can be avoided by optimizing the angle of the visual detector and changing the imaging position. For example, the problem of high transmission contrast during base film spot coating that interferes with ordinary defect detection can be solved by optimizing the angle, changing the imaging position, and using diffuse fill light. By using three stations, namely one transmission station and two reflection stations for synchronous inspection, it can be suitable for inspection in different scenarios.

[0035] In some embodiments, Figure 2 As shown, before starting the inspection operation, the operator winds the completed film product 3 to be inspected on the feed roller 51 to form a material roll 30, clamps the feed roller 51 between the two placement racks 50, and then pulls out one end of the material roll 30 and passes it through a plurality of transmission rollers 42 to transfer the film product 3 to be inspected in the inspection rack 5, and then uses various visual detectors to inspect the film product 3 to be inspected.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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 visual inspection device, characterized in that: include: A plurality of tensioning mechanisms (4) arranged in parallel with each other; in Each of the tensioning mechanisms (4) is controlled by a control module, thereby transmitting the film product (3) to be inspected on the corresponding tensioning mechanism (4); A first reflection detection mechanism (1) and a second reflection detection mechanism (2) are respectively arranged on the upper and lower sides of the film product (3) to be detected; as well as The control module is electrically connected to the first reflection detection mechanism (1) and the second reflection detection mechanism (2), respectively, and is configured to control the first reflection detection mechanism (1) and the second reflection detection mechanism (2) to respectively perform visual inspection on the upper and lower surfaces of the film product (3) to be inspected.

2. The visual inspection device according to claim 1, characterized in that: Each set of the tensioning mechanisms (4) comprises: A pair of brackets (40), and a pair of rotating shafts (41) are arranged in parallel on opposite surfaces of the two brackets (40); wherein Each rotating shaft (41) is provided with a transmission roller (42), and each rotating shaft (41) is electrically connected to a control module and is controlled to rotate by the control module; The film product (3) to be inspected is located between two transmission rollers (42) and is transmitted in a staggered manner to form a horizontal section (32) between each set of tensioning mechanisms (4); and The first reflection detection mechanism (1) and the second reflection detection mechanism (2) are located on the upper and lower sides of one of the horizontal sections (32) to perform visual inspection on the surface of the film product (3) to be inspected.

3. The visual inspection device according to claim 2, characterized in that: The first reflection detection mechanism (1) comprises: A first visual detector (10) is arranged above one of the horizontal sections (32) and is suitable for performing a reflective visual inspection on the upper surface of the film product (3) to be inspected under the control of the control module; and The first fill light component (11) is located on one side of the first reflective visual detector (10), and the illumination direction of the first fill light component (11) is consistent with the detection direction of the first reflective visual detector (10).

4. The visual inspection device according to claim 2, characterized in that: The second reflection detection mechanism (2) comprises: a second visual detector (20), arranged below one of the horizontal sections (32), and adapted to perform a reflective visual inspection on the lower surface of the film product (3) to be inspected under the control of the control module; and The second fill light component (21) is located on one side of the second reflective visual detector (20), and the illumination direction of the second fill light component (21) is consistent with the detection direction of the second reflective visual detector (20).

5. The visual inspection device according to claim 1, characterized in that: A transmission mechanism (6) is provided on one side of the film product (3) to be inspected; The transmission mechanism (6) comprises: A transmission visual detector (60) is electrically connected to the control module and performs transmission visual inspection on the film product to be inspected (3) under the control of the control module; and The transmission light-filling element (61) and the transmission visual detector (60) are respectively located on two sides of the film product (3) to be detected, and the detection directions of the two are opposite.

6. An isolation film spot coating process followed by coating AOI inspection assembly, characterized in that: include: A detection frame (5) on which a first visual detector (10) is arranged; The placement rack (50) is arranged on one side of the detection rack (5); wherein A feeding roller (51) is arranged on the placement rack (50), and a material roll (30) is arranged on the feeding roller (51); and A visual inspection device as claimed in any one of claims 1 to 5.

7. The isolation film spot coating process and post-coating AOI inspection assembly according to claim 6, characterized in that: The visual inspection device comprises: A plurality of tensioning mechanisms (4) are arranged in parallel with each other; wherein Each of the tensioning mechanisms (4) is controlled by a control module, thereby transmitting the film product (3) to be inspected on the corresponding tensioning mechanism (4); A first reflection detection mechanism (1) and a second reflection detection mechanism (2) are respectively arranged on the upper and lower sides of the film product (3) to be detected; and The control module is electrically connected to the first reflection detection mechanism (1) and the second reflection detection mechanism (2), respectively, and is configured to control the first reflection detection mechanism (1) and the second reflection detection mechanism (2) to respectively perform visual inspection on the upper and lower surfaces of the film product (3) to be inspected.

8. The isolation film spot coating process and post-coating AOI inspection assembly according to claim 7, characterized in that: Each set of the tensioning mechanisms (4) comprises: A pair of brackets (40), and a pair of rotating shafts (41) are arranged in parallel on opposite surfaces of the two brackets (40); wherein Each rotating shaft (41) is provided with a transmission roller (42), and each rotating shaft (41) is electrically connected to a control module and is controlled to rotate by the control module; The film product (3) to be inspected is located between two transmission rollers (42) and is transmitted in a staggered manner to form a horizontal section (32) between each set of tensioning mechanisms (4); and The first reflection detection mechanism (1) and the second reflection detection mechanism (2) are located on the upper and lower sides of one of the horizontal sections (32) to perform visual inspection on the surface of the film product (3) to be inspected.

9. The isolation film spot coating process and post-coating AOI inspection assembly according to claim 8, characterized in that: The first reflection detection mechanism (1) comprises: A first visual detector (10) is arranged above one of the horizontal sections (32) and is suitable for performing a reflective visual inspection on the upper surface of the film product (3) to be inspected under the control of the control module; and A first fill light component (11) is located on one side of the first reflective visual detector (10), and the illumination direction of the first fill light component (11) is consistent with the detection direction of the first reflective visual detector (10); The second reflection detection mechanism (2) comprises: a second visual detector (20), arranged below one of the horizontal sections (32), and adapted to perform a reflective visual inspection on the lower surface of the film product (3) to be inspected under the control of the control module; and The second fill light component (21) is located on one side of the second reflective visual detector (20), and the illumination direction of the second fill light component (21) is consistent with the detection direction of the second reflective visual detector (20).

10. The isolation film spot coating process and post-coating AOI inspection assembly according to claim 9, characterized in that: A transmission mechanism (6) is provided on one side of the film product (3) to be inspected; The transmission mechanism (6) comprises: A transmission visual detector (60) is electrically connected to the control module and performs transmission visual inspection on the film product to be inspected (3) under the control of the control module; and The transmission light-filling element (61) and the transmission visual detector (60) are respectively located on two sides of the film product (3) to be detected, and the detection directions of the two are opposite.

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