Strip processing device and coating production line

Abstract

The invention relates to a strip processing device and a coating production line, and relates to the technical field of strip processing equipment. In the process that the adhesive film is attached to the target conveying roller, due to vibration of the target conveying roller and the large size of the adhesive film, the edge of the adhesive film easily jumps in the direction away from the target conveying roller relative to the target conveying roller, and at the moment, the distance between the edge of the adhesive film and the first face is smaller than the distance between the middle of the adhesive film and the first face; the limiting mechanism is arranged between the edge of the adhesive film and the limiting mechanism, so that the airflow between the edge of the adhesive film and the limiting mechanism is larger in flow speed and smaller in pressure intensity, the acting force points to the position with the small pressure intensity from the position with the larger pressure intensity, and therefore the edge of the adhesive film is subjected to the acting force facing the target conveying roller, and the adhesive film is smoother in the conveying process. And therefore, the adhesive film can be more firmly attached to the target conveying roller, the conveying reliability of the adhesive film is improved, and finished products are prevented from having defects.

Description

Technical Field

[0001] The present application relates to the technical field of strip material processing equipment, and in particular to a strip material processing device and a coating production line. Background Art

[0002] Adhesive films have strong adhesion capabilities and can be attached to various surfaces to achieve various functions such as bonding, protection, and optical performance adjustment. For example, in the production of display screens, adhesive films can bond the display panel to components such as the touch screen and backlight module, thereby ensuring the normal operation and service life of the display.

[0003] However, most coating lines currently on the market have some practical issues, especially when producing larger products. These issues can lead to various defects in the finished product. For example, they can cause light leakage and color unevenness in the aforementioned displays, affecting the display's visual quality. Summary of the Invention

[0004] Based on this, the present application provides a strip material processing device to improve the conveying reliability of the film and thereby prevent defects in the finished product.

[0005] According to one aspect of the present application, an embodiment of the present application provides a strip material processing device, the strip material processing device comprising:

[0006] at least one conveying roller, configured to be rotatable and used to convey the film, the at least one conveying roller including a target conveying roller; and

[0007] The limiting mechanism is provided in one-to-one correspondence with the target conveying roller; the limiting mechanism has a first surface provided toward the corresponding target conveying roller; the first surface and the corresponding target conveying roller are spaced apart along the radial direction of the target conveying roller and define a conveying channel;

[0008] The radial dimension of the conveying channel along the corresponding target conveying roller is greater than the thickness of the film, so that the gap between the first surface and the side of the film facing the first surface is a preset gap; the preset gap is configured to enable the film to adhere to the target conveying roller when the film passes through the conveying channel.

[0009] In one embodiment, the target conveying roller has a laminating surface for laminating with the adhesive film;

[0010] The dimension of the laminating surface along the axial direction of the target conveying roller is 50 mm to 1250 mm, and the dimension of the preset gap in the radial direction of the target conveying roller is 50 μm to 150 μm.

[0011] In one embodiment, the orthographic projection of the first surface on the first reference surface is a first arc, and the orthographic projection of the target conveying roller corresponding to the first surface on the first reference surface is a second arc;

[0012] The center of the first arc and the center of the second arc coincide with each other; the first reference plane is a plane perpendicular to the axis direction of the target conveying roller.

[0013] In one embodiment, the orthographic projection of the first surface on the first reference surface is a first arc, and the orthographic projection of the target conveying roller corresponding to the first surface on the first reference surface is a second arc;

[0014] The ratio of the chord length of the first arc to the radius of the second arc is 1; the first reference plane is a plane perpendicular to the axis direction of the target conveying roller.

[0015] In one embodiment, the target conveying roller has a laminating surface for laminating with the adhesive film; the dimension of the laminating surface in the axial direction of the target conveying roller is equal to the width of the adhesive film.

[0016] In one embodiment, the target conveying roller has a laminating surface for laminating with the adhesive film; the orthographic projection of the first surface on the second reference surface is a first projection line, and the orthographic projection of the laminating surface on the second reference surface is a second projection line;

[0017] The dimension of the first projection line in the axial direction of the target conveying roller is the same as the dimension of the second projection line in the axial direction of the target conveying roller; the second reference surface is a plane parallel to both the axial direction of the target conveying roller and the first direction; the direction in which the spacing between the limiting mechanism and the target conveying roller is set is parallel to the first direction.

[0018] In one embodiment, the limiting mechanism includes a limiting body and a buffer member connected to the limiting body;

[0019] A side surface of the buffer component facing away from the limiting body forms a first surface.

[0020] In one embodiment, the strip material processing device further includes a driving mechanism, which is connected to the limiting mechanism, and the driving mechanism is used to drive the limiting mechanism to move toward or away from the target conveying roller along the radial direction of the target conveying roller.

[0021] In one embodiment, a plurality of conveying rollers are provided, and all conveying rollers are arranged along the conveying direction;

[0022] The conveying roller located most downstream in the conveying direction is the target conveying roller.

[0023] According to another aspect of the present application, the present application provides a coating production line, comprising a coating device and a strip processing device according to any of the above embodiments; the strip processing device further comprises a first unwinding mechanism, a second unwinding mechanism, and an attachment mechanism;

[0024] The first unwinding mechanism is configured to provide a first tape material, and the second unwinding mechanism is configured to provide a second tape material;

[0025] The coating device is located downstream of the first unwinding mechanism and the second unwinding mechanism and upstream of the attachment mechanism; the coating device is configured to apply adhesive to one side of the first and second webs where the first and second webs are attached to each other;

[0026] The attachment mechanism is located downstream of the coating device and downstream of the conveying roller; the attachment mechanism is configured to attach the first strip and the second strip coated with adhesive to form an adhesive film; or, the attachment mechanism is configured to attach the first strip and the second strip coated with adhesive to form an adhesive film.

[0027] The above-mentioned strip material processing device includes at least one conveying roller and a limiting mechanism. During the process of the film being attached to the target conveying roller, due to the vibration of the target conveying roller and the large size of the film, the edge of the film is likely to jump in the direction away from the target conveying roller relative to the target conveying roller. The distance between the edge of the film and the first surface is smaller than the distance between the middle of the film and the first surface. At this time, the air flow rate between the edge of the film and the limiting mechanism is greater and the pressure is smaller. The force will be directed from the place with higher pressure to the place with lower pressure. In this way, the edge of the film will be subjected to the force in the direction toward the target conveying roller, making the film flatter during the conveying process. Furthermore, friction between the film and the conveyor roller during rotation generates electrostatic force, which can cause the edge of the film to easily jump away from the target conveyor roller. At this point, the distance between the edge of the film and the limiting mechanism is smaller than the distance between the middle of the film and the limiting mechanism. Therefore, the edge of the film is more susceptible to the electromagnetic influence of the limiting mechanism than the middle of the film. This results in a greater electrostatic force at the edge of the film, allowing the film to adhere more securely to the target conveyor roller. Therefore, by providing a preset gap, the possibility of wrinkles on the film on the target conveyor roller is reduced, improving the overall reliability of the film's conveyance and preventing defects in the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of the strip material processing device in some embodiments of the present application.

[0029] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of part of the strip material processing device.

[0030] Figure 3 for Figure 2 Side view of the target conveying roller and limiting mechanism.

[0031] Figure 4 for Figure 2 Schematic diagram of the projection of the target conveying roller and the limiting mechanism on the first reference surface.

[0032] Figure 5 for Figure 2 Front view of the target conveying roller and limiting mechanism.

[0033] Figure 6 for Figure 2 Schematic diagram of the projection of the target conveying roller and the limiting mechanism on the second reference surface.

[0034] Figure 7 for Figure 6 A partial enlarged view at point a.

[0035] Figure 8 for Figure 2 A partial enlarged view at point b.

[0036] Figure 9 This is a schematic structural diagram of a coating production line in some embodiments of the present application.

[0037] The accompanying drawings in the specific implementation manner are as follows:

[0038] 100. Strip handling device; 1. Conveyor roller; T. Target conveyor roller; 12. Laminating surface; 2. Limiting mechanism; 21. Buffer; 212. First surface; 22. Limiting body; A. Conveyor channel; M1. First reference surface; H1. First arc; H2. Second arc; M2. Second reference surface; T1. First projection line; T2. Second projection line; 3. Driving mechanism; 4. Frame; 51. First unwinding mechanism; 52. Second unwinding mechanism; 6. Attaching mechanism; D1. First strip; D2. Second strip; 7. Rewinding mechanism; 8. Adhesive film; 9. Coating device; X1. Chord length of first arc H1; R. Radius of second arc H2;

[0039] F1, first direction; F2, axial direction of the target conveying roller. DETAILED DESCRIPTION

[0040] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0041] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is the orientation or position relationship based on the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply 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 on this application.

[0042] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0043] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0044] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0046] Coating technology has a wide range of applications and is mainly used in manufacturing industries such as electronic circuits, medical products, photoresist materials, semiconductor etching, new energy batteries, solar photovoltaics, and liquid crystal module displays.

[0047] Please refer to Figure 1 and Figure 2 , Figure 1 Schematic diagram of the three-dimensional structure of the strip material processing device 100 in some embodiments of the present application is shown. Figure 2 for Figure 1 The strip material processing device 100 provided in the present application comprises at least one conveying roller 1 and a limiting mechanism 2.

[0048] As production demands increase, product sizes gradually increase. However, when larger films pass through conveyor rollers 1, the film 8's thickness becomes uneven due to its length on both sides. Slight differences in the applied force can easily cause wrinkles on the edges of the film 8. Specifically, the longer films 8 exhibit more pronounced physical properties, such as flexibility and elasticity, making them more susceptible to bending and deformation under tension, which in turn can lead to wrinkles. Furthermore, due to the longer coating lines, the tension on both sides of the film 8's edges also varies slightly as the film 8 passes through a series of conveyor rollers 1. Longer films 8 experience prolonged friction during transportation, accumulating more static charge and increasing the influence of Coulomb force on the film 8, making it more likely to wrinkle.

[0049] The conveying roller 1 is rotatably arranged to support the film 8 to travel. At least one means that there can be one, two or more conveying rollers 1, and the conveying rollers 1 can be rotatably arranged on the frame 4.

[0050] The limiting mechanism 2 is provided in a one-to-one correspondence with the target conveying roller T. The limiting mechanism 2 has a first surface 212 facing the corresponding target conveying roller T. The first surface 212 and the corresponding target conveying roller T are spaced apart along the radial direction of the target conveying roller T and define a conveying channel A. Thus, the conveying channel A provides space for the film 8 to travel.

[0051] At least one conveying roller 1 includes a target conveying roller T. The target conveying roller T and the limiting mechanism 2 are provided in a one-to-one correspondence. One limiting mechanism 2 is provided corresponding to one target conveying roller T.

[0052] Continue to refer to Figure 1 and Figure 2 , and combined with reference Figure 3 and Figure 4 , Figure 3 Shown Figure 2 The side view of the target conveying roller T and the limiting mechanism 2, Figure 4 Shown Figure 2 The diagram shows an orthographic projection of the target conveyor roller T and the limiting mechanism 2 onto the first reference plane M1. The limiting mechanism 2 has a first surface 212 facing the corresponding target conveyor roller T. The first surface 212 and the corresponding target conveyor roller T are spaced apart radially along the target conveyor roller T and define a conveying channel A. The conveying channel A allows the film 8 to pass through. The first surface 212 can be flat or curved and can be designed according to the shape and size of the target conveyor roller T.

[0053] The radial dimension of the conveying channel A along the corresponding target conveying roller T is greater than the thickness of the adhesive film 8, so that the gap between the first surface 212 and the side of the adhesive film 8 facing the first surface 212 is a predetermined gap. The predetermined gap is configured to ensure that the adhesive film 8 adheres to the target conveying roller T as the adhesive film 8 passes through the conveying channel A. The predetermined gap ensures that the adhesive film 8 adheres to the target conveying roller T when the edge of the adhesive film 8 jumps away from the target conveying roller T, thereby reducing the risk of wrinkling of the adhesive film 8. Specifically, the adhesive film 8 can be a double-sided laminating film based on a silicone system without a substrate.

[0054] Specifically, during the process of the film 8 being attached to the target conveying roller T, due to the vibration of the target conveying roller T and the large size of the film 8, the edge of the film 8 is likely to jump relative to the target conveying roller T in a direction away from the target conveying roller T. At this time, the distance between the edge of the film 8 and the first surface 212 is smaller than the distance between the middle of the film 8 and the first surface 212, so that the airflow velocity between the edge of the film 8 and the limiting mechanism 2 is higher and the pressure is lower. The force will be directed from the area with higher pressure to the area with lower pressure. In this way, the edge of the film 8 will be subjected to the force in the direction toward the target conveying roller T, making the film 8 smoother during the conveying process. In addition, the friction between the film 8 and the conveyor roller 1 during rotation generates electrostatic force, and the edge of the film 8 tends to jump relative to the target conveyor roller T in a direction away from the target conveyor roller T. At this time, the distance between the edge of the film 8 and the limiting mechanism 2 is smaller than the distance between the middle of the film 8 and the limiting mechanism 2. Therefore, the edge of the film 8 is more susceptible to the electromagnetic influence of the limiting mechanism 2 than the middle of the film 8. As a result, the electrostatic force on the edge of the film 8 is greater, so that the film 8 can be more firmly attached to the target conveyor roller T, thereby improving the conveying reliability of the film 8 and preventing defects in the finished product.

[0055] In some embodiments of the present application, continue to refer to Figures 1 to 4 The target conveyor roller T has a laminating surface 12 for laminating with the adhesive film 8. The laminating surface 12 has a dimension of 50 mm to 1250 mm along the axial direction F2 of the target conveyor roller T, and the predetermined gap has a dimension of 50 μm to 150 μm in the radial direction of the target conveyor roller T. The axial dimension of the laminating surface 12 can be selected from 50 mm, 1200 mm, and 1250 mm, and the predetermined gap can be selected from 50 μm, 100 μm, and 150 μm in the radial direction of the target conveyor roller T.

[0056] The laminating surface 12 is the entire outer circumference of the target conveyor roller T, and the film 8 only contacts a portion of the laminating surface 12 when running on the target conveyor roller T. When the dimension of the laminating surface 12 along the axial direction F2 of the target conveyor roller T is 50 mm to 1250 mm, that is, when the corresponding width of the film 8 is approximately 50 mm to 1250 mm, setting the preset gap dimension in the radial direction of the target conveyor roller T to 50 μm to 150 μm can reliably correct the edge position of the film 8 and improve the appearance of wrinkles in the film 8. This is because such a design not only prevents the risk of scratches on the film 8 caused by the pressure between the limiting mechanism 2 and the film 8 due to a too small gap, but also prevents the risk of losing the correct edge position of the film 8 due to an excessively large gap.

[0057] Specifically, when the dimension of the laminating surface 12 along the axial direction F2 of the target conveying roller T is 50 mm, the dimension of the preset gap in the radial direction of the target conveying roller T can be set to 150 μm. In this case, the width of the film 8 is set to approximately 50 mm. When the dimension of the laminating surface 12 along the axial direction F2 of the target conveying roller T is 1250 mm, the dimension of the preset gap in the radial direction of the target conveying roller T can be set to 50 μm. This is because when a film 8 with a smaller width is conveyed, the edge runout of the film 8 is relatively small. Even if the gap is set slightly larger, the change in the spacing between the edge of the film 8 and the limiting mechanism 2 will not be as significant as that of a film 8 with a larger width. In this case, changes in airflow velocity and pressure have a relatively small impact on the force acting on the edge of the film 8, and the requirement of applying force to the edge of the film 8 toward the target conveying roller T can still be met, ensuring smooth conveyance of the film 8. However, the edge of the wide film 8 has a large amplitude of edge jitter. If the gap is too large, the distance between the edge of the film 8 and the limiting mechanism 2 will be too large, the air flow rate will decrease, and the pressure will increase. In this way, the force acting on the edge of the film 8 is not enough to push it toward the target conveying roller T, and it is difficult to effectively correct the edge jitter of the film 8, thereby affecting the smoothness of the film 8 during conveying.

[0058] In some embodiments of the present application, continue to refer to Figures 1 to 4 The orthographic projection of the first surface 212 on the first reference surface M1 is the first arc H1, and the orthographic projection of the target conveying roller T corresponding to the first surface 212 on the first reference surface M1 is the second arc H2; the center of the first arc H1 and the center of the second arc H2 coincide with each other; the first reference surface M1 is a plane perpendicular to the axial direction F2 of the target conveying roller T.

[0059] This design allows for a more uniform preset gap, making the film 8 less likely to wrinkle during transportation. Especially when the film 8 is large in width and thickness, the uniform gap allows the film 8 to maintain its original dimensional accuracy as much as possible during transportation, reducing the risk of stretching or compressing the film 8 due to localized gap variations.

[0060] In some embodiments of the present application, continue to refer to Figures 1 to 4 The orthographic projection of the first surface 212 on the first reference surface M1 is the first arc H1, and the orthographic projection of the target conveying roller T corresponding to the first surface 212 on the first reference surface M1 is the second arc H2; the ratio of the chord length X1 of the first arc H1 to the radius R of the second arc H2 is 1; the first reference surface M1 is a plane perpendicular to the axial direction F2 of the target conveying roller T.

[0061] When the ratio of the chord length X1 of the first arc H1 to the radius R of the target conveying roller T is set to 1, the coverage range of the limiting mechanism 2 in the circumferential direction of the target conveying roller T is moderate, which can not only effectively constrain the edge of the film 8 to prevent the film 8 from excessive deviation or wrinkles, but also will not excessively restrict the running angle of the film 8, so that the film 8 can maintain a good running state in the conveying channel A.

[0062] In some embodiments of the present application, continue to refer to Figures 1 to 4 , and combined with reference Figure 5 and Figure 6 , Figure 5 Shown Figure 2 The front view of the target conveying roller T and the limiting mechanism 2, Figure 6 Shown Figure 2 Schematic diagram of the orthographic projection of the target conveyor roller T and the limiting mechanism 2 on the second reference surface M2. The target conveyor roller T has a bonding surface 12 for bonding with the adhesive film 8. The dimension of the bonding surface 12 in the axial direction F2 of the target conveyor roller T is equal to the width of the adhesive film 8.

[0063] The width refers to the maximum available width of the film 8 in the axial direction F2 of the target conveyor roller T. Because the dimension of the laminating surface 12 in the axial direction F2 of the target conveyor roller T is equal to the width of the film 8, the film 8 can maintain contact with the laminating surface 12 of the target conveyor roller T in the axial direction F2 during conveyance, reducing the risk of the film 8 shifting or skewing during conveyance.

[0064] In some embodiments of the present application, continue to refer to Figures 1 to 6 , and combined with reference Figure 7 , Figure 7 Shown Figure 6 A partial enlarged view at point a. The target conveyor roller T has a bonding surface 12 for bonding with the adhesive film 8. The orthographic projection of the first surface 212 on the second reference surface M2 is a first projection line T1, and the orthographic projection of the bonding surface 12 on the second reference surface M2 is a second projection line T2. The dimension of the first projection line T1 in the axial direction F2 of the target conveyor roller T is the same as the dimension of the second projection line T2 in the axial direction F2 of the target conveyor roller T. The second reference surface M2 is a plane parallel to both the axial direction F2 of the target conveyor roller T and the first direction F1. The direction in which the limiting mechanism 2 is spaced from the target conveyor roller T is parallel to the first direction F1.

[0065] This design ensures that the preset gap exists uniformly along the axial direction F2 of the target conveyor roller T. Consequently, during operation of the web handling device 100, airflow is evenly distributed between the film 8 and the limiting mechanism 2, generating a uniform airflow force and improving the stability of the conveyance of the film 8. The film 8 is subjected to a uniform restraining force along the axial direction F2 of the target conveyor roller T, which helps prevent deformation, wrinkles, or sagging of the film 8 caused by localized uneven force during conveyance, thereby improving the flatness and tension uniformity of the film 8.

[0066] In some other embodiments, the limiting mechanism 2 includes two limiting sub-parts, which are arranged corresponding to the edges of the film 8, specifically preventing the film 8 from jumping at the edges of the film 8 during transportation due to tension or friction during operation.

[0067] Specifically in the present application, the limiting body 22 of the limiting mechanism 2 is installed on the frame 4 using a crossbeam, and the structure is simple.

[0068] In some embodiments of the present application, continue to refer to Figures 1 to 4 , and combined with reference Figure 8 , Figure 8 Shown Figure 2 The position limiting mechanism 2 comprises a position limiting body 22 and a buffer member 21 connected to the position limiting body 22 ; a surface of the buffer member 21 facing away from the position limiting body 22 constitutes a first surface 212 .

[0069] The hardness of the stopper body 22 is higher than that of the buffer 21. The stopper is used to mount to other components of the material handling device, such as the frame 4, and therefore requires a higher hardness for easier installation. The buffer 21, on the other hand, has a lower hardness to prevent the risk of damage to the film 8 due to collision with the buffer 21 in the event of an abnormality. For example, the buffer 21 can be made of silicone with a Shore D hardness of 75.

[0070] In some embodiments of the present application, continue to refer to Figure 1 and Figure 2 The strip processing device 100 further includes a driving mechanism 3, which is connected to the limiting mechanism 2, and the driving mechanism 3 is used to drive the limiting mechanism 2 to move toward or away from the target conveying roller T in the radial direction of the target conveying roller T.

[0071] This design allows the web handling device 100 of the present application to accommodate films 8 of varying thicknesses. When a film 8 of a different thickness needs to be replaced, the drive mechanism 3 can be used to drive the limiting mechanism 2 radially toward or away from the target conveyor roller T, adjusting the preset gap to accommodate the film 8 of that thickness. The drive mechanism 3 is not limited; a pneumatic cylinder drive or a linear motor can also be used. Two pneumatic cylinders are positioned along the axis F2 of the target conveyor roller T. Using a pneumatic device not only saves time but also facilitates operation.

[0072] Specifically in this application, when the film 8 passes through the target conveying roller T, the limiting mechanism 2 automatically descends to a matching position according to the thickness of the film 8, so that the preset gap can be adjusted by the controller and sensors and other components, which will not be elaborated here.

[0073] In some embodiments of the present application, continue to refer to Figure 1 , and combined with reference Figure 9 , Figure 9 A schematic diagram of the coating production line in some embodiments of the present application is shown. Multiple conveyor rollers 1 are provided, all arranged along the conveying direction; the conveyor roller 1 located farthest downstream in the conveying direction is the target conveyor roller T. Because the coating production line is long, comprehensive consideration of changes in factors such as tension or friction can be challenging, requiring comprehensive consideration of the influence of multiple factors. Therefore, in this technical solution, only the tension or friction factors on the last conveyor roller 1 are considered, making improvements less difficult than considering all conveyor rollers 1. Furthermore, improvements focused on only one target conveyor roller T result in lower cost. Furthermore, compared to improvements to other conveyor rollers 1, improving the last conveyor roller 1 before winding as the target conveyor roller T allows for more effective adjustment of potential wrinkles in the film 8 before winding, reducing the risk of further wrinkles in the film 8 occurring after improvements to other conveyor rollers 1. This allows for more effective and cost-effective prevention of wrinkles in the film 8 at a lower cost.

[0074] In the technical solution of the embodiment of this application, continue to refer to Figures 1 to 7, the coating production line includes the strip processing device 100 and the coating device 9 in any of the above embodiments; the strip processing device 100 also includes a first unwinding mechanism 51, a second unwinding mechanism 52 and an attachment mechanism 6; the first unwinding mechanism 51 is configured to provide a first strip D1, and the second unwinding mechanism 52 is configured to provide a second strip D2; the coating device 9 is located downstream of the first unwinding mechanism 51 and the second unwinding mechanism 52, and upstream of the attachment mechanism 6; the coating device 9 is configured to apply adhesive to one side of the first strip D1 and the second strip D2 attached to each other; the attachment mechanism 6 is located downstream of the coating device 9 and downstream of the conveying roller; the attachment mechanism 6 is configured to attach the first strip D1 and the second strip D2 coated with adhesive to form an adhesive film 8; or, the attachment mechanism 6 is configured to attach the first strip D1 and the second strip D2 coated with adhesive to form an adhesive film 8.

[0075] Because the coating production line includes the coating device 9 and the strip material processing device 100 in any of the above embodiments, it also has the advantages of any of the above embodiments. For example, the first unwinding mechanism 51 may include components such as an unwinding shaft and a drive motor. The unwinding shaft can be used to carry the first strip material D1. The drive motor provides rotational power to the unwinding shaft, enabling it to rotate and release the first strip material D1. The second unwinding mechanism 52 can be understood with reference to the first unwinding mechanism 51 and will not be described in detail here.

[0076] The above-mentioned attachment refers to the process of connecting two or more objects, materials or components together to form a whole or a combination. The attachment mechanism 6 is configured to attach the first strip D1 and the second strip D2. Exemplarily, it can be achieved by using a pressure roller or other pressure-applying device. The above-mentioned coating device 9 is a component for coating optical adhesive on one side of the side where the first strip D1 and the second strip D2 are attached to each other. It can be understood that the adhesive can be coated on the first strip D1 and also on the second strip D2. The coated adhesive can be selected as optical adhesive, and the first strip D1 and the second strip D2 are high molecular polymer films, and the main raw material is polyethylene terephthalate.

[0077] The coating production line further includes a winding mechanism 7 , which is located downstream of the at least one conveying roller 1 , and is configured to wind up the adhesive film 8 .

[0078] Specifically, in the coating production line, the coating device 9 applies adhesive to one side of the attachment between the first web D1 provided by the first unwinding mechanism 51 and the second web D2 provided by the second unwinding mechanism 52. The attaching mechanism 6 then bonds the adhesive-coated web to the other web to form a preliminary adhesive film 8. The adhesive-coated preliminary adhesive film 8 undergoes a curing process, forming a firm adhesive film 8 with excellent adhesion and optical properties. The aforementioned conveyor roller 1 then transfers the adhesive film 8 to the reeling mechanism 7 for reeling for subsequent use. By way of example, the reeling mechanism 7 may include components such as a reeling shaft and a drive motor, which are not described in detail here.

[0079] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A strip material processing device, characterized in that: The strip material processing device comprises: at least one conveying roller, configured to be rotatable and used to convey the film, the at least one conveying roller including a target conveying roller; and A limiting mechanism is provided in one-to-one correspondence with the target conveying roller; the limiting mechanism has a first surface disposed toward the corresponding target conveying roller; the first surface and the corresponding target conveying roller are spaced apart along the radial direction of the target conveying roller and define a conveying channel; The radial dimension of the conveying channel along the corresponding target conveying roller is greater than the thickness of the film, so that the gap between the first surface and the side of the film facing the first surface is a preset gap; the preset gap is configured to enable the film to adhere to the target conveying roller when the film passes through the conveying channel.

2. The strip material processing device according to claim 1, characterized in that: The target conveying roller has a bonding surface for bonding with the adhesive film; The dimension of the laminating surface along the axial direction of the target conveying roller is 50 mm to 1250 mm, and the dimension of the preset gap in the radial direction of the target conveying roller is 50 μm to 150 μm.

3. The strip material processing device according to claim 1, characterized in that: The orthographic projection of the first surface on the first reference surface is a first arc line, and the orthographic projection of the target conveying roller corresponding to the first surface on the first reference surface is a second arc line; The center of the first arc and the center of the second arc coincide with each other; and the first reference plane is a plane perpendicular to the axis direction of the target conveying roller.

4. The strip material processing device according to claim 1, characterized in that: The orthographic projection of the first surface on the first reference surface is a first arc line, and the orthographic projection of the target conveying roller corresponding to the first surface on the first reference surface is a second arc line; The ratio of the chord length of the first arc to the radius of the second arc is 1; The first reference plane is a plane perpendicular to the axis direction of the target conveying roller.

5. The strip processing device according to any one of claims 1 to 4, characterized in that: The target conveying roller has a bonding surface for bonding with the adhesive film; the dimension of the bonding surface in the axial direction of the target conveying roller is equal to the width of the adhesive film.

6. The strip material processing device according to any one of claims 1 to 4, characterized in that: The target conveying roller has a bonding surface for bonding with the adhesive film; the orthographic projection of the first surface on the second reference surface is a first projection line, and the orthographic projection of the bonding surface on the second reference surface is a second projection line; The dimension of the first projection line in the axial direction of the target conveying roller is the same as the dimension of the second projection line in the axial direction of the target conveying roller; the second reference plane is a plane parallel to both the axial direction of the target conveying roller and the first direction; the direction in which the limiting mechanism is spaced from the target conveying roller is parallel to the first direction.

7. The strip material processing device according to any one of claims 1 to 4, characterized in that: The limiting mechanism includes a limiting body and a buffer member connected to the limiting body; A side surface of the buffer component facing away from the limiting body constitutes the first surface.

8. The strip material processing device according to any one of claims 1 to 4, characterized in that: The strip material processing device further includes a driving mechanism, which is connected to the limiting mechanism and is used to drive the limiting mechanism to move toward or away from the target conveying roller along the radial direction of the target conveying roller.

9. The strip material processing device according to any one of claims 1 to 4, characterized in that: There are multiple conveying rollers, all of which are arranged along the conveying direction; The conveying roller located most downstream in the conveying direction is the target conveying roller.

10. A coating production line, characterized in that: The coating production line comprises a strip processing device and a coating device according to any one of claims 1 to 9; the strip processing device further comprises a first unwinding mechanism, a second unwinding mechanism and an attachment mechanism; The first unwinding mechanism is configured to provide a first tape material, and the second unwinding mechanism is configured to provide a second tape material; The coating device is located downstream of the first unwinding mechanism and the second unwinding mechanism and upstream of the attachment mechanism; the coating device is configured to apply adhesive to one side of the first and second tapes where the first and second tapes are attached to each other; The attachment mechanism is located downstream of the coating device and downstream of the conveying roller; the attachment mechanism is configured to attach the first strip and the second strip coated with adhesive to form an adhesive film; or, the attachment mechanism is configured to attach the first strip and the second strip coated with adhesive to form an adhesive film.

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