Method and system for applying large-area facial masks

Abstract

The present disclosure provides a film pasting method and film pasting system for large-area facial masks, including: placing a workpiece to be pasted on the first fixed component and moving it to a preset position; when a vacuum environment is formed in the space inside the suction cup body, adsorbing the facial mask; detecting the surface data of the facial mask in real time, and providing the positive pressure generated by the exhaust end of the vacuum unit to the adjustable mechanism, so that the adjustable mechanism provides support force for the facial mask and dynamically adjusts the flatness of the facial mask; when the surface flatness reaches the requirement, moving the second fixed component toward the workpiece to be pasted, so that the facial mask is pasted on the workpiece to be pasted; driving the film pressing mechanism in the second fixed component to move toward the facial mask, and pressing the four sides of the facial mask to prevent the four sides of the facial mask from edging. The present disclosure effectively solves the defect that bubbles are easily formed when the facial mask is pasted.

Description

Technical Field

[0001] The present invention relates to the field of facial mask pasting fixtures, and in particular to a facial mask pasting method and a facial mask pasting system for large areas. Background Art

[0002] Nowadays, the shells of computers, mobile phones and other electrical appliances in people's daily lives are all made of injection molded parts. Smooth injection molded parts have a certain gloss and texture, so many injection molded products often use a smooth structure. However, the surface of the smooth injection molded parts is easily scratched and contaminated, making them lose their gloss and texture. Therefore, after the injection molded parts are processed and formed, they need to be pasted with protective films and masks using film pasting equipment. At the same time, masks are also pasted on the operating panels of some products as needed, which not only improves the aesthetics, but also instructs users how to operate.

[0003] However, with the development of product lines, products are becoming thinner and lighter, and the thickness of the corresponding masks is also getting thinner. At the same time, when moving the mask, a vacuum suction cup is usually used to move and stick the mask. Under this trend, when the mask sticking equipment uses a vacuum suction cup to move the mask, especially for a large area of ​​the mask, even if the mask itself has a certain degree of deformation resistance, due to the reduction of the mask thickness, the vacuum suction cup easily forms a concave area in the area where the mask is adsorbed, such as Figure 1 ,During the pasting process, bubble defects are formed between the mask and the workpiece.

[0004] Based on this, a film sticking system for large-area facial masks that can adjust the vacuum suction cup according to the thickness of the large-area facial mask urgently needs to be developed. Summary of the invention

[0005] In order to solve the problems of the prior art, the present disclosure provides a film applying method and a film applying system for a large-area facial mask, which can solve at least one technical problem in the prior art.

[0006] The technical solution adopted by the present disclosure to solve the above technical problems is:

[0007] A film sticking method for a large-area facial mask is applied to a film sticking device including a first fixing component, a second fixing component and a vacuum suction cup, wherein the vacuum suction cup includes: a suction cup body for adsorbing the facial mask, an adjustable mechanism and a vacuum unit arranged in the suction cup body; the suction end of the suction cup body is connected to the vacuum unit; the exhaust end of the vacuum unit is connected to the adjustable mechanism;

[0008] The method includes:

[0009] Placing the workpiece to be laminated on the first fixing assembly and moving it to a preset position;

[0010] When a vacuum environment is formed in the space inside the suction cup body, the mask is adsorbed; the surface data of the mask is detected in real time, and the positive pressure generated by the exhaust end of the vacuum unit is provided to the adjustable mechanism, so that the adjustable mechanism provides support force to the mask and dynamically adjusts the flatness of the mask;

[0011] When the surface flatness reaches the requirement, the second fixing assembly is moved toward the workpiece to be laminated, so that the mask is laminated on the workpiece to be laminated;

[0012] The film pressing mechanism in the second fixing assembly is driven to move toward the mask and press the four sides of the mask to prevent the four sides of the mask from frayed.

[0013] The real-time detection of the surface data of the mask and the provision of the positive pressure generated by the exhaust end of the vacuum unit to the adjustable mechanism so that the adjustable mechanism provides a supporting force to the mask and dynamically adjusts the flatness of the mask include:

[0014] Numbering according to the position of any of the vacuum suction cups;

[0015] Collect image data of the mask surface, and output the collected image data in the form of a single-channel grayscale image;

[0016] Perform median filtering to remove noise from the collected image data, and use the Sobel edge detection algorithm to extract edge information in the image;

[0017] Construct a pixel coordinate system and collect the coordinates of the deformation area based on the detected edge information;

[0018] The detected area is segmented using the collected deformation area coordinates, and the deformation types are distinguished in the segmented area to obtain the concave area coordinates and the convex area coordinates, and the concave area coordinates or the convex area coordinates are matched with the corresponding number of the vacuum suction cup to determine the deformation of the mask in the corresponding area when the vacuum suction cup is working;

[0019] According to the deformation of the mask in the corresponding area when the vacuum suction cup is working, the working state of any adjustable mechanism is adjusted to ensure the flatness of the mask before pasting.

[0020] The method of adjusting the working state of any of the adjustable mechanisms according to the deformation of the mask in the corresponding area when the vacuum suction cup is working to ensure the flatness of the mask before pasting includes:

[0021] If the mask in the corresponding area is sunken when the vacuum suction cup is working, the mask is supported by the adjustable mechanism in the vacuum suction cup to prevent the negative pressure inside the suction cup body from causing the mask to be sunken;

[0022] If the mask in the corresponding area bulges when the vacuum suction cup is working, the supporting force provided by the adjustable mechanism in the vacuum suction cup to the mask is reduced to prevent the adjustable mechanism from providing excessive supporting force and causing the mask to bulge.

[0023] The method of segmenting the detection area using the collected deformation area coordinates and distinguishing the deformation types in the segmented area includes:

[0024] Constructing an image window so that the size of the image window is consistent with the size of the vacuum suction cup body, and reading the coordinates of any of the vacuum suction cups, using the coordinates of the vacuum suction cup as the starting position for constructing the image window;

[0025] The gray value change area detected during the edge signal acquisition process is regarded as the deformation edge, and the edge coordinates are compared by using the position characteristics of each deformation to extract the coordinates of each deformation;

[0026] The detected area is segmented using the collected deformation area coordinates, and the deformation types are distinguished in the segmented area, and classified according to the change of the gray level:

[0027] For the grayscale image in the window, if the grayscale level in the window is continuous and unchanged, such as the grayscale value is continuously black, it means that the area is a concave area; if it is continuously white, it is a flat area; if the grayscale level in the window is discontinuous, the area is considered to be a convex area.

[0028] The adjustable mechanism comprises:

[0029] A connecting piece, arranged at the end of the air inlet end of the suction cup body;

[0030] A pipeline is arranged in the air extraction end of the suction cup body;

[0031] An external connection piece connected to the side wall of the suction cup body and used to connect the space in the suction cup body to the outside through the pipeline;

[0032] An airbag component is arranged on the connecting component and is used to expand by providing positive pressure through the vacuum unit when a negative pressure state is generated inside the suction cup body, thereby providing support force for the mask;

[0033] A controllable valve, connected to the external component, for controlling the opening or closing of the pipeline;

[0034] The external connection part is connected to the exhaust end of the vacuum unit;

[0035] The connecting member is provided with a first through hole communicating with the airbag member, and at least one second through hole communicating with the interior of the vacuum unit.

[0036] The adjustable mechanism comprises:

[0037] A connecting piece, arranged at the end of the air inlet end of the suction cup body;

[0038] A pipeline is arranged in the air extraction end of the suction cup body;

[0039] An external connection piece connected to the side wall of the suction cup body and used to connect the space in the suction cup body to the outside through the pipeline;

[0040] A piston group is arranged in the pipeline;

[0041] A support member, arranged at the output end of the piston group and located inside the suction cup body, is used to provide positive pressure through the vacuum unit when a negative pressure state is generated inside the suction cup body, so as to move toward the mask, thereby providing support force to the mask;

[0042] The external connection part is connected to the exhaust end of the vacuum unit or the outside world through a controllable valve body;

[0043] The connecting member is provided with at least one second through hole communicating with the interior of the vacuum unit;

[0044] A groove is provided on the inner side wall of the pipeline for arranging a sealing member to seal and limit the piston group.

[0045] The film sticking device further includes: a frame;

[0046] The first fixing assembly is arranged on the frame and is used to set the workpiece to be film-laminated;

[0047] The second fixing component is movably arranged on the frame and is located above the first fixing component;

[0048] The side of the mask facing the workpiece to be pasted is provided with an adhesive layer;

[0049] The first fixing component comprises:

[0050] A slide rail mechanism, arranged on the frame;

[0051] A base, arranged on the slide rail mechanism, for arranging the workpiece to be film-laminated;

[0052] A driving mechanism, which is arranged on the frame and has an output end connected to the base, and is used to adjust the relative position between the workpiece to be film-laminated and the second fixing assembly as required;

[0053] The second fixing component comprises:

[0054] A fixed frame, arranged on the frame;

[0055] A connecting plate, arranged on the fixing frame, used for arranging the vacuum suction cup to take the facial mask;

[0056] A driving unit, disposed on the fixing frame, and used for driving the fixing frame to move toward the workpiece to be film-attached;

[0057] The vacuum suction cup is connected to a vacuum unit, and the vacuum unit is arranged on the fixing frame.

[0058] The second fixing assembly further includes: a film pressing mechanism, including:

[0059] At least two driving members are arranged on the connecting plate;

[0060] A film pressing unit, arranged at the output end of the driving member;

[0061] The film pressing unit is a frame body and is arranged on the periphery of the vacuum suction cup;

[0062] The film pressing unit is provided with a flexible surface on one side facing the mask, which is used for pressing the edge of the mask so that the mask is firmly adhered to the edge of the workpiece to be film-bonded.

[0063] The film sticking device further includes a detection mechanism, including:

[0064] Detection unit;

[0065] A support frame, arranged on the frame, for arranging the detection unit to detect the flatness of the mask;

[0066] The control unit is electrically connected and is used to control the on-off of the adjustable mechanism in the vacuum suction cup through the controllable valve body according to the detection data of the detection unit.

[0067] A film sticking system for large-area facial masks, applied to a film sticking device comprising a first fixing component, a second fixing component and a vacuum suction cup; the vacuum suction cup comprises: a suction cup body for adsorbing the facial mask, an adjustable mechanism and a vacuum unit arranged in the suction cup body; the suction end of the suction cup body is connected to the vacuum unit; the exhaust end of the vacuum unit is connected to the adjustable mechanism;

[0068] The film system includes:

[0069] A moving module is used to place the workpiece to be laminated on the first fixing component and move it to a preset position;

[0070] A flattening module is used to absorb the mask when a vacuum environment is formed in the space inside the suction cup body; detect the surface data of the mask in real time, and provide the positive pressure generated by the exhaust end of the vacuum unit to the adjustable mechanism, so that the adjustable mechanism provides a supporting force for the mask and dynamically adjusts the flatness of the mask;

[0071] A laminating module, used for moving the second fixing assembly toward the workpiece to be laminating when the surface flatness reaches the requirement, so that the mask is laminating on the workpiece to be laminating;

[0072] The processing module is used to drive the film pressing mechanism in the second fixing component to move toward the mask and press the four sides of the mask to prevent the four sides of the mask from frayed.

[0073] The beneficial effects of the present disclosure are:

[0074] The film pasting method for large-area facial masks disclosed in the present invention is to arrange the workpiece to be pasted with the film by setting the first fixing component on the frame; then movably arrange the second fixing component on the frame and be located above the first fixing component; and multiple vacuum suction cups are arranged on the second fixing component to facilitate the taking of the facial mask; in the process of taking the facial mask, when the negative pressure generated by the vacuum unit forms a vacuum environment in the space within the suction cup body, the positive pressure generated by the exhaust end of the vacuum unit enables the adjustable mechanism to provide support force for the facial mask to prevent the suction cup body from causing the facial mask to sag. The film pasting method for large-area facial masks disclosed in the present invention can ensure the flatness of the facial mask when pasting, even if a very thin facial mask, such as a 0.3-1mm thick facial mask, is transported, and prevent the negative pressure generated by the vacuum suction cup from causing bubbles to form between the facial mask and the workpiece to be pasted when the facial mask is transported. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1 A schematic diagram of the deformation of a thinner facial mask caused by a vacuum suction cup in the prior art;

[0076] Figure 2 An embodiment of a vacuum suction cup provided by the present disclosure;

[0077] Figure 3 for Figure 2 The structural diagram of the connecting parts;

[0078] Figure 4 for Figure 2 A schematic diagram of the operation of the illustrated embodiment;

[0079] Figure 5 Another embodiment of the vacuum chuck provided by the present disclosure;

[0080] Figure 6It is a structural schematic diagram of the film sticking device disclosed in the present invention;

[0081] Figure 7 for Figure 6 The main view;

[0082] Figure 8 for Figure 6 A schematic structural diagram of the first fixing component in FIG.

[0083] Fig. 9 for Figure 6 A schematic structural diagram of a second fixing component in FIG.

[0084] Fig.10 A flow chart of a large-area facial mask pasting method provided by the present disclosure;

[0085] Fig.11 A schematic diagram for distinguishing deformation types within a segmented area;

[0086] Fig.12 A block diagram of the film pasting system provided by the present disclosure.

[0087] exist Figure 1-12 middle:

[0088] 1. Suction cup body; 2. Adjustable mechanism; 3. Vacuum unit; 4. Mask; 101. Suction cup member; 102. Matching member; 201. Connecting member; 202. Pipeline; 203. External member; 204. Airbag member; 205. Controllable valve; 206. Support member; 207. Piston group; 201A. First through hole; 201B. Second through hole; 202A. Groove; 100. Frame; 200. First fixing assembly; 300. Second fixing assembly Part; 400. Detection mechanism; 500. Workpiece to be laminated; 21. Slide rail mechanism; 22. Base; 23. Driving mechanism; 31. Fixing frame; 32. Connecting plate; 33. Driving unit; 34. Laminating mechanism; 341. Driving part; 342. Laminating unit; 41. Detection unit; 42. Support frame; 43. Control unit; 1000. Moving module; 2000. Leveling module; 3000. Laminating module; 4000. Processing module. DETAILED DESCRIPTION

[0089] In the following, various embodiments of the present disclosure will be described more fully. The present disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present disclosure to the specific embodiments disclosed herein, but rather the present disclosure should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present disclosure.

[0090] Hereinafter, the terms "include" or "may include" used in various embodiments of the present disclosure indicate the presence of disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. In addition, as used in various embodiments of the present disclosure, the terms "include", "have", and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components, or a combination of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components, or a combination of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components, or a combination of the foregoing.

[0091] In various embodiments of the present disclosure, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the words listed at the same time. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0092] The expressions (such as "first", "second", etc.) used in the various embodiments of the present disclosure may modify the various constituent elements in the various embodiments, but may not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present disclosure, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0093] It should be noted that if it is described that one component element is “connected” to another component element, the first component element may be directly connected to the second component element, and a third component element may be “connected” between the first component element and the second component element. Conversely, when one component element is “directly connected” to another component element, it can be understood that there is no third component element between the first component element and the second component element.

[0094] The term “user” used in various embodiments of the present disclosure may indicate a person using an electronic device or a device (eg, an artificial intelligence electronic device) using the electronic device.

[0095] The terms used in the various embodiments of the present disclosure are only used for the purpose of describing specific embodiments and are not intended to limit the various embodiments of the present disclosure. As used herein, the singular form is intended to also include the plural form, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the meanings commonly understood by ordinary technicians in the field to which the various embodiments of the present disclosure belong. The terms (such as the terms defined in the generally used dictionary) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, unless clearly defined in the various embodiments of the present disclosure.

[0096] like Figure 1 During use, if the mask thickness is about 2mm, the mask material is PVC, which has a certain rigidity, ensuring that the vacuum suction cup is not easily deformed during adsorption and movement. However, as the mask thickness decreases, such as 0.3-1mm, the mask thickness decreases, and the anti-deformation ability decreases. In addition, when the area is large, such as the length is more than 40cm and the width is more than 30cm, the vacuum suction cup will cause deformation during adsorption and transportation. Figure 1 The large area described in the present disclosure may be: a length of more than 40 cm and a width of more than 30 cm. Specific embodiment 1:

[0098] The present disclosure provides an embodiment:

[0099] In order to solve the above technical problems, this embodiment first provides a vacuum suction cup to ensure the smooth implementation of the film sticking method for large-area facial masks described in the present disclosure. Figure 2 , comprising: a suction cup body 1 and an adjustable mechanism 2; wherein the suction cup body 1 is used to adsorb a facial mask 4; the adjustable mechanism 2 is arranged in the suction cup body 1; the suction end of the suction cup body 1 is connected to a vacuum unit 3; the exhaust end of the vacuum unit 3 is connected to the adjustable mechanism 2, and is used to utilize the negative pressure generated by the vacuum unit 3 to form a vacuum environment in the space inside the suction cup body 1, and the positive pressure generated by the exhaust end of the vacuum unit 3 enables the adjustable mechanism 2 to provide a supporting force for the facial mask 4, so as to prevent the suction cup body 1 from causing a depression of the facial mask 4.

[0100] Furthermore, in the adjustable mechanism 2, the suction cup body 1 comprises: a suction cup member 101 and a matching member 102; wherein the suction cup member 101 is used to contact the facial mask 4 using a working end; the matching member 102 is arranged at the non-working end of the suction cup member 101; the interior of the matching member 102 is a hollow structure, and its end is connected to the connecting member 201 in the adjustable mechanism 2; the pipeline 202 in the adjustable mechanism 2 is arranged inside the matching member 102; the matching member 102 is circumferentially provided with a connecting hole 102A matching the external connecting member 203 in the adjustable mechanism 2; the end of the suction cup member 101 in contact with the facial mask is called the working end.

[0101] When in use, the suction cup body 1 is in contact with the mask 4. After the vacuum unit 3 works, the gas in the space inside the suction cup body 1 is extracted. Figure 1 At s, negative pressure is generated to adsorb the mask 4 on the suction cup body 1. However, if the thickness of the mask 4 is very thin, then the following Figure 1 The depression.

[0102] Furthermore, the present embodiment describes the adjustable mechanism 2 in detail and provides an adjustable mechanism 2, including: a connecting member 201, a pipeline 202, an external member 203, an airbag member 204 and a controllable valve 205; the connecting member 201 is arranged at the end of the air inlet end of the suction cup body 1; the pipeline 202 is arranged in the air extraction end of the suction cup body 1; the external member 203 is connected to the side wall of the suction cup body 1, and is used to make the space in the suction cup body 1 communicate with the outside through the pipeline 202; the airbag member 204 is arranged in the The connecting member 201 is used to provide positive pressure expansion through the vacuum unit 3 when a negative pressure state is generated inside the suction cup body 1, thereby providing support for the mask 4; the controllable valve 205 is connected to the external member 203 to control the opening or closing of the pipeline 202; the external member 203 is connected to the exhaust end of the vacuum unit 3; the connecting member 201 is provided with a first through hole 201A connected to the airbag member 204, and at least one second through hole 201B connected to the inside of the vacuum unit 3, such as Figure 3 .

[0103] When using, Figure 4 , the vacuum unit 3 is omitted; the airbag member 204 expands under the state of positive pressure provided by the vacuum unit 3, thereby providing a supporting force to the mask 4 so that the mask 4 no longer sinks into the suction cup body 1.

[0104] However, in this embodiment, since the airbag member 204 is a flexible member, its supporting force is limited and its service life is very short. Therefore, this embodiment also provides a structure of an adjustable mechanism 2, such as Figure 5As shown, it includes: a connecting member 201, a pipeline 202, an external member 203, a support member 206 and a piston group 207; wherein the connecting member 201 is arranged at the end of the air inlet end of the suction cup body 1; the pipeline 202 is arranged in the air extraction end of the suction cup body 1; the external member 203 is connected to the side wall of the suction cup body 1, and is used to make the space in the suction cup body 1 communicate with the outside through the pipeline 202; the piston group 207 is arranged in the pipeline 202; the support member 206 is arranged at the output end of the piston group 207, and is located inside the suction cup body 1, and is used to generate a negative pressure state inside the suction cup body 1 through The vacuum unit 3 provides positive pressure to move toward the mask 4, thereby providing supporting force for the mask 4; the external component 203 is connected to the exhaust end of the vacuum unit 3 or the outside world through a controllable valve body; the connecting component 201 is provided with at least one second through hole 201B connected to the interior of the vacuum unit 3; the inner wall of the pipeline 202 is provided with a groove 202A, which is used to set a sealing member, on the one hand to seal and limit the piston group 207; it should be noted that if the recessed area on the mask 4 cannot be flattened using the positive pressure provided by the exhaust end of the vacuum unit 3, an external air source can be used to meet the supporting force requirements.

[0105] When in use, the piston group 207 moves toward the outside of the suction cup member 101 under the state of positive pressure provided by the vacuum unit 3, thereby providing a supporting force to the mask 4 so that the mask 4 no longer sinks into the suction cup member 101. Specific embodiment 2:

[0107] The present disclosure also provides an embodiment:

[0108] like Figure 6 and 7 The film pasting method for a large-area facial mask described in Specific Embodiment 1 is applied to a film pasting device, which specifically includes: a frame 100, a first fixing component 200, a second fixing component 300, at least one vacuum suction cup as described in Specific Embodiment 1, and a detection mechanism 400; wherein the first fixing component 200 is arranged on the frame 100, and is used to set a workpiece 500 to be pasted; the second fixing component 300 is movably arranged on the frame 100, and is located above the first fixing component 200; the vacuum suction cup is arranged on the second fixing component 300, and is used to absorb and pick up the facial mask 4; the facial mask 4 is provided with an adhesive layer on the side facing the workpiece 500 to be pasted.

[0109] Further, such as Figure 8The first fixing component 200 includes: a slide rail mechanism 21, a base 22, and a driving mechanism 23; wherein the slide rail mechanism 21 is arranged on the frame 100; the base 22 is arranged on the slide rail mechanism 21, and is used to set the workpiece to be film-attached 500; the driving mechanism 23 is arranged on the frame 100, and the output end is connected to the base 22, and is used to adjust the relative position between the workpiece to be film-attached 500 and the second fixing component 300 as needed; preferably, the slide rail mechanism 21 is a matching structure of a slider and a guide rail; the base 22 is a flat surface, on which a limiting workpiece for fixing the workpiece to be film-attached 500 is arranged; the driving mechanism 23 is a cylinder, and the output end is connected to the base 22, and can adjust the relative position between the workpiece to be film-attached 500 and the second fixing component 300.

[0110] Further, such as Fig. 9 The second fixing component 300 includes: a fixing frame 31, a connecting plate 32, a driving unit 33 and a film pressing mechanism 34; wherein the fixing frame 31 is arranged on the frame 100; the connecting plate 32 is arranged on the fixing frame 31, and is used to set the vacuum suction cup to absorb and pick up the mask 4; the driving unit 33 is arranged on the fixing frame 31, and is used to drive the fixing frame 31 to move toward the workpiece 500 to be filmed; the vacuum suction cup is connected to the vacuum unit, and the vacuum unit is arranged on the fixing frame 31.

[0111] In order to prevent the mask 4 from lifting, the present embodiment is further provided with a film pressing mechanism 34, including: at least two driving members 341 and a film pressing unit 342; wherein the driving member 341 is arranged on the connecting plate 32; the film pressing unit 342 is arranged at the output end of the driving member 341; the film pressing unit 342 is a frame body, and is arranged on the periphery of the vacuum suction cup; the film pressing unit 342 is provided with a flexible surface on the side facing the mask 4 to press the edge of the mask 4 so that the mask 4 and the edge of the workpiece 500 to be film-bonded are firmly adhered.

[0112] The detection mechanism 400 includes: a detection unit 41, a support frame 42 and a control unit 43; wherein the support frame 42 is arranged on the frame 100, and is used to set the detection unit 41 to detect the flatness of the mask; the control unit 43 is electrically connected to the detection unit 41, and is used to control the adjustable mechanism 2 in the vacuum suction cup through a controllable valve body according to the detection data of the detection unit 41; the control unit 43 can be a PC terminal; specifically, the controllable valve body can be connected to an external positive pressure air source or to another vacuum pump to assist in adjusting the supporting force provided by the adjustable mechanism 2; if the supporting force provided by the adjustable mechanism 2 is too small and the mask is concave, then the external air source can be connected through the controllable valve body to assist in improving the supporting force provided by the adjustable mechanism 2; if the supporting force provided by the adjustable mechanism 2 is too large and the mask is convex, then the external vacuum pump can be connected through the controllable valve body to reduce the supporting force provided by the adjustable mechanism 2. Specific embodiment 3:

[0114] The present disclosure also provides an embodiment:

[0115] like Fig.10 After disclosing the contents of Specific Embodiment 1 and Specific Embodiment 2, a method for applying a large-area facial mask is provided in combination with the contents thereof, specifically comprising: placing a workpiece to be applied with the film on a first fixing component and moving it to a preset position; taking the facial mask through a second fixing component, and detecting the surface data of the facial mask in real time, so that the adjustable mechanism at the corresponding position works and dynamically adjusts the flatness of the facial mask; when the surface flatness meets the requirements, moving the second fixing component toward the workpiece to be applied with the film so that the facial mask is attached to the workpiece to be applied with the film; driving the film pressing mechanism in the second fixing component to move toward the facial mask and press-fit the four sides of the facial mask to prevent the edges of the four sides of the facial mask from rising.

[0116] Furthermore, the real-time detection of the surface data of the mask enables the adjustable mechanism at the corresponding position to work and dynamically adjust the flatness of the mask, including: numbering according to the position of any of the vacuum suction cups; collecting image data of the mask surface and outputting the collected image data in the form of a single-channel grayscale image; median filtering and denoising the collected image data, and extracting edge information in the image using a Sobel edge detection algorithm; constructing a pixel coordinate system, collecting the coordinates of the deformation area according to the detected edge information, and verifying the collected coordinates; using the collected deformation area coordinates to segment the detection area, distinguishing the deformation type within the segmented area, obtaining the concave area coordinates and the convex area coordinates, and matching the concave area coordinates or the convex area coordinates with the corresponding number of the vacuum suction cup to determine the deformation of the mask in the corresponding area when the vacuum suction cup is working; adjusting the working state of any of the vacuum suction cups according to the deformation of the mask in the corresponding area when the vacuum suction cup is working to ensure the flatness of the mask before pasting.

[0117] Specifically, in actual work:

[0118] 1. Use the OV5640 image sensor to collect images, and the image signal mode is RGB565. In order to improve the data processing rate in subsequent high-speed information processing, the three-channel color image can be converted into a single-channel grayscale image;

[0119] 2. Use two fifos to build an image window. The depth of each fifo can be set to 1280 and the data bit width to 8 bits. The size of the image window is consistent with the size of the vacuum suction cup body, or it can be a square frame. The coordinates of the vacuum suction cup are read, and the image window is built based on the coordinates of the vacuum suction cup.

[0120] 3. Perform median filtering to effectively suppress noise. The specific process can be processed by pipeline. For example, in the first-level pipeline, set multiple sorts to sort each row of data in the window to obtain the maximum, minimum and median of each row. In the second-level pipeline, sort the maximum, minimum and median to find the middle value. Finally, the third-level pipeline will sort the middle value output by the upper level again through the sort module to obtain the median.

[0121] 4. Using the Sobel edge detection algorithm, the internally set horizontal and vertical convolution factor templates are convolved with the sliding window respectively to obtain the horizontal and vertical image grayscale values, and the gradient amplitude is compared with the preset threshold to determine whether it is an edge signal.

[0122] 5. Starting from the first pixel of each frame image, traverse each pixel point in turn; in the process of edge signal acquisition, many gray value change areas are detected, which are regarded as deformation edges. By comparing the edge coordinates using the position characteristics of each deformation, the coordinates of each deformation can be accurately extracted;

[0123] 6. Use the collected deformation area coordinates to segment the detection area, distinguish the deformation types in the segmented area, and classify them according to the change of the gray level:

[0124] For the grayscale image in the window, if the grayscale level in the window is continuous and unchanged, such as the grayscale value is continuously black, it means that the area is a concave area, if it is continuously white, it is a flat area; if the grayscale level in the window is discontinuous, such as forming a line segment, then the area is considered to be a convex area. Fig.11 In the figure, C1 is white and is a flat area; C2 is a raised area; and C3 is a sunken area.

[0125] 7. Match the coordinates of the deformation zone with the position coordinates of the vacuum suction cup.

[0126] The method of adjusting the working state of any one of the vacuum suction cups according to the deformation of the mask in the corresponding area when the vacuum suction cup is working to ensure the flatness of the mask before pasting includes: if the mask in the corresponding area is sunken when the vacuum suction cup is working, providing supporting force to the mask through the adjustable mechanism in the vacuum suction cup to prevent the negative pressure inside the suction cup body from causing the mask to sink; if the mask in the corresponding area is bulged when the vacuum suction cup is working, reducing the supporting force provided by the adjustable mechanism in the vacuum suction cup to the mask to prevent the adjustable mechanism from providing excessive supporting force to cause the mask to bulge.

[0127] Similarly, since the thickness of the mask 4 cannot be completely balanced, when it is adsorbed and taken, the flatness of any position of the mask 4 is continuously monitored by the detection unit 41, and the controllable valve 205 corresponding to the concave area is opened, so that the corresponding adjustable mechanism 2 starts to work, and the flatness of the mask 4 before pasting is ensured. After the flatness reaches the required level, the second fixing component 300 moves toward the workpiece to be pasted, so that the mask 4 fits with the workpiece to be pasted, and the vacuum suction cup releases the mask 4. Under the action of the vacuum suction cup and surface tension, the mask 4 fits flatly with the workpiece to be pasted, and the second fixing component 300 is lifted by the driving unit 33; at this time, the film pressing mechanism 34 in the second fixing component 300 is driven to move toward the mask 4, and the mask 4 is pressed around to prevent the mask 4 from having edges around. Specific embodiment 4:

[0129] The present disclosure also provides an embodiment:

[0130] like Fig.12 A film sticking system for large-area facial masks is applied to a film sticking device including a first fixing component 200, a second fixing component 300 and a vacuum suction cup as in specific implementation 2; the vacuum suction cup includes: a suction cup body 1 for adsorbing the facial mask, an adjustable mechanism 2 and a vacuum unit 3 arranged in the suction cup body; the suction end of the suction cup body 1 is connected to the vacuum unit 3; the exhaust end of the vacuum unit 3 is connected to the adjustable mechanism 2.

[0131] The above-mentioned film pasting system includes: a moving module 1000, a leveling module 2000, a bonding module 3000 and a processing module 4000; wherein the moving module 1000 places the workpiece to be pasted on the first fixed component 200 and moves it to a preset position; the leveling module 2000 is used to adsorb the mask 4 when a vacuum environment is formed in the space within the suction cup body 1, and detect the surface data of the mask 4 in real time, and provide the positive pressure generated by the exhaust end of the vacuum unit 3 to the adjustable mechanism 2, so that the adjustable mechanism 2 provides a supporting force for the mask 4 and dynamically adjusts the flatness of the mask 4; the bonding module 3000 is used to move the second fixed component 300 toward the workpiece to be pasted when the surface flatness meets the requirements, so that the mask 4 is pasted on the workpiece to be pasted; the processing module 4000 is used to drive the film pressing mechanism 34 in the second fixed component 300 to move toward the mask 4, and press the four sides of the mask 4 to prevent the four sides of the mask 4 from rising.

[0132] The present disclosure also provides an embodiment:

[0133] An electronic device comprises: a storage medium and a processing unit; wherein the storage medium is used to store a computer program; the processing unit exchanges data with the storage medium, and is used to execute the computer program through the processing unit when a large-area facial mask is pasted, thereby performing the steps of the large-area facial mask pasting method as described in specific embodiment 3.

[0134] The CPU can perform various appropriate actions and processes according to the program stored in the storage medium. The electronic device also includes the following peripherals, including input parts such as a keyboard and a mouse, and may also include output parts such as a cathode ray tube (CRT), a liquid crystal display (LCD), and a speaker; in particular, according to the embodiments disclosed in the present disclosure, such as Fig.10 Any of the processes described in can be implemented as a computer software program.

[0135] The present disclosure also provides an embodiment:

[0136] A readable storage medium: the readable storage medium stores a computer program; when the computer program is run, the steps of the large-area facial mask pasting method as described in specific embodiment 3 are executed.

[0137] In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, device or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or copy a program used by or in combination with an instruction execution system, device, or device. The program code contained on the computer-readable medium may be copied using any suitable medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0138] The above disclosures are only several specific implementation scenarios of the present disclosure, but the present disclosure is not limited thereto, and any changes that can be thought of by a person skilled in the art should fall within the protection scope of the present disclosure. The above disclosure serial numbers are only for description and do not represent the advantages and disadvantages of the implementation scenarios.

Claims

1. A method for applying a large-area facial mask, characterized in that: Applicable to a film sticking device including a first fixing component, a second fixing component and a vacuum suction cup; the vacuum suction cup includes: a suction cup body for adsorbing the mask, an adjustable mechanism and a vacuum unit arranged in the suction cup body; the suction end of the suction cup body is connected to the vacuum unit; the exhaust end of the vacuum unit is connected to the adjustable mechanism; The method includes: Placing the workpiece to be laminated on the first fixing assembly and moving it to a preset position; When a vacuum environment is formed in the space inside the suction cup body, the mask is adsorbed; the surface data of the mask is detected in real time, and the positive pressure generated by the exhaust end of the vacuum unit is provided to the adjustable mechanism, so that the adjustable mechanism provides support force to the mask and dynamically adjusts the flatness of the mask; When the surface flatness reaches the requirement, the second fixing assembly is moved toward the workpiece to be laminated, so that the mask is laminated on the workpiece to be laminated; The film pressing mechanism in the second fixing assembly is driven to move toward the mask and press the four sides of the mask to prevent the four sides of the mask from frayed.

2. The method for applying a large-area facial mask according to claim 1, characterized in that: The real-time detection of the surface data of the mask and the provision of the positive pressure generated by the exhaust end of the vacuum unit to the adjustable mechanism so that the adjustable mechanism provides a supporting force to the mask and dynamically adjusts the flatness of the mask include: Numbering according to the position of any of the vacuum suction cups; Collect image data of the mask surface, and output the collected image data in the form of a single-channel grayscale image; Perform median filtering to remove noise from the collected image data, and use the Sobel edge detection algorithm to extract edge information in the image; Construct a pixel coordinate system and collect the coordinates of the deformation area based on the detected edge information; The detected area is segmented using the collected deformation area coordinates, and the deformation types are distinguished in the segmented area to obtain the concave area coordinates and the convex area coordinates, and the concave area coordinates or the convex area coordinates are matched with the corresponding number of the vacuum suction cup to determine the deformation of the mask in the corresponding area when the vacuum suction cup is working; According to the deformation of the mask in the corresponding area when the vacuum suction cup is working, the working state of any adjustable mechanism is adjusted to ensure the flatness of the mask before pasting.

3. The method for applying a large-area facial mask according to claim 2, characterized in that: The method of adjusting the working state of any of the adjustable mechanisms according to the deformation of the mask in the corresponding area when the vacuum suction cup is working to ensure the flatness of the mask before pasting includes: If the mask in the corresponding area is sunken when the vacuum suction cup is working, the mask is supported by the adjustable mechanism in the vacuum suction cup to prevent the negative pressure inside the suction cup body from causing the mask to be sunken; If the mask in the corresponding area bulges when the vacuum suction cup is working, the supporting force provided by the adjustable mechanism in the vacuum suction cup to the mask is reduced to prevent the adjustable mechanism from providing excessive supporting force and causing the mask to bulge.

4. The method for applying a large-area facial mask according to claim 2, characterized in that: The method of segmenting the detection area using the collected deformation area coordinates and distinguishing the deformation types in the segmented area includes: Constructing an image window so that the size of the image window is consistent with the size of the vacuum suction cup body, and reading the coordinates of any of the vacuum suction cups, using the coordinates of the vacuum suction cup as the starting position for constructing the image window; The gray value change area detected during the edge signal acquisition process is regarded as the deformation edge, and the edge coordinates are compared by using the position characteristics of each deformation to extract the coordinates of each deformation; The detected area is segmented using the collected deformation area coordinates, and the deformation types are distinguished in the segmented area, and classified according to the change of the gray level: For the grayscale image in the window, if the grayscale level in the window is continuous and unchanged, such as the grayscale value is continuously black, it means that the area is a concave area; if it is continuously white, it is a flat area; if the grayscale level in the window is discontinuous, the area is considered to be a convex area.

5. The method for applying a large-area facial mask according to claim 1, characterized in that: The adjustable mechanism comprises: A connecting piece, arranged at the end of the air inlet end of the suction cup body; A pipeline is arranged in the air extraction end of the suction cup body; An external connection piece connected to the side wall of the suction cup body and used to connect the space in the suction cup body to the outside through the pipeline; An airbag component is arranged on the connecting component and is used to expand by providing positive pressure through the vacuum unit when a negative pressure state is generated inside the suction cup body, thereby providing support force for the mask; A controllable valve, connected to the external component, for controlling the opening or closing of the pipeline; The external connection part is connected to the exhaust end of the vacuum unit; The connecting member is provided with a first through hole communicating with the airbag member, and at least one second through hole communicating with the interior of the vacuum unit.

6. The method for applying a large-area facial mask according to claim 1, characterized in that: The adjustable mechanism comprises: A connecting piece, arranged at the end of the air inlet end of the suction cup body; A pipeline is arranged in the air extraction end of the suction cup body; An external connection piece connected to the side wall of the suction cup body and used to connect the space in the suction cup body to the outside through the pipeline; A piston group is arranged in the pipeline; A support member, arranged at the output end of the piston group and located inside the suction cup body, is used to provide positive pressure through the vacuum unit when a negative pressure state is generated inside the suction cup body, so as to move toward the mask, thereby providing support force to the mask; The external connection part is connected to the exhaust end of the vacuum unit or the outside world through a controllable valve body; The connecting member is provided with at least one second through hole communicating with the interior of the vacuum unit; A groove is provided on the inner side wall of the pipeline for arranging a sealing member to seal and limit the piston group.

7. The method for applying a large-area facial mask according to claim 1, characterized in that: The film sticking device further includes: a frame; The first fixing assembly is arranged on the frame and is used to set the workpiece to be film-laminated; The second fixing component is movably arranged on the frame and is located above the first fixing component; The side of the mask facing the workpiece to be pasted is provided with an adhesive layer; The first fixing component comprises: A slide rail mechanism, arranged on the frame; A base, arranged on the slide rail mechanism, for arranging the workpiece to be film-laminated; A driving mechanism, which is arranged on the frame and has an output end connected to the base, and is used to adjust the relative position between the workpiece to be film-laminated and the second fixing assembly as required; The second fixing component comprises: A fixed frame, arranged on the frame; A connecting plate, arranged on the fixing frame, used for arranging the vacuum suction cup to take the facial mask; A driving unit, disposed on the fixing frame, and used for driving the fixing frame to move toward the workpiece to be film-attached; The vacuum suction cup is connected to a vacuum unit, and the vacuum unit is arranged on the fixing frame.

8. The method for applying a large-area facial mask according to claim 7, characterized in that: The second fixing assembly further includes: a film pressing mechanism, including: At least two driving members are arranged on the connecting plate; A film pressing unit, arranged at the output end of the driving member; The film pressing unit is a frame body and is arranged on the periphery of the vacuum suction cup; The film pressing unit is provided with a flexible surface on one side facing the mask, which is used for pressing the edge of the mask so that the mask is firmly adhered to the edge of the workpiece to be film-bonded.

9. The method for applying a large-area facial mask according to claim 7, characterized in that: The film sticking device further includes a detection mechanism, including: Detection unit; A support frame, arranged on the frame, for arranging the detection unit to detect the flatness of the mask; The control unit is electrically connected and is used to control the on-off of the adjustable mechanism in the vacuum suction cup through the controllable valve body according to the detection data of the detection unit.

10. A film application system for large-area facial masks, characterized in that: Applicable to a film sticking device including a first fixing component, a second fixing component and a vacuum suction cup; the vacuum suction cup includes: a suction cup body for adsorbing the mask, an adjustable mechanism and a vacuum unit arranged in the suction cup body; the suction end of the suction cup body is connected to the vacuum unit; the exhaust end of the vacuum unit is connected to the adjustable mechanism; The film system includes: A moving module is used to place the workpiece to be laminated on the first fixing component and move it to a preset position; A flattening module is used to absorb the mask when a vacuum environment is formed in the space inside the suction cup body; detect the surface data of the mask in real time, and provide the positive pressure generated by the exhaust end of the vacuum unit to the adjustable mechanism, so that the adjustable mechanism provides a supporting force for the mask and dynamically adjusts the flatness of the mask; A laminating module, used for moving the second fixing assembly toward the workpiece to be laminating when the surface flatness reaches the requirement, so that the mask is laminating on the workpiece to be laminating; The processing module is used to drive the film pressing mechanism in the second fixing component to move toward the mask and press the four sides of the mask to prevent the four sides of the mask from frayed.

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