Film coating apparatus

Abstract

The application relates to a film coating device, which comprises a conveying mechanism arranged on a rack, the conveying mechanism comprising a tensioning roller and a plurality of conveying rollers arranged at intervals along a conveying direction, the conveying rollers being used for bearing workpieces and conveying the workpieces along the conveying direction, and the tensioning roller being arranged at intervals between two conveying rollers along the conveying direction. The film coating device comprises a film shearing member, a first material cylinder and a second material cylinder, the first material cylinder and the second material cylinder being respectively arranged on the two opposite sides of the tensioning roller, a material film being wound on the outer circumferential surface of the first material cylinder and the second material cylinder, the material film being wound from the first material cylinder, passing through the tensioning roller and being connected to the second material cylinder, and the tensioning roller being arranged on the side of the material film away from the conveying direction. The material film can be wrapped on the two opposite surfaces of the workpiece when the workpiece passes through the tensioning roller along the conveying direction, the film shearing member can cut the material film when the material film is wrapped on the workpiece, and the disconnected material film is adhered and wound on the outer circumferential surface of the tensioning roller again, so that the double-sided film coating of the workpiece is realized.

Description

Technical Field

[0001] This application relates to the field of automated production line technology, and in particular to a coating equipment. Background Technology

[0002] In modern industrial production, coating technology is widely used for the surface treatment of various materials and products to improve their protective performance, aesthetics, and durability. Traditional coating processes typically require significant manual intervention and complex operating steps, especially when performing double-sided coating, where the workpiece needs to undergo multiple processing and adjustments. This not only increases production costs and time but can also lead to problems such as uneven coating, material waste, and inconsistent product quality.

[0003] In existing technologies, most common laminating equipment can only perform single-sided lamination. If double-sided lamination is required, two machines or multiple operation steps are usually needed. This not only increases the equipment's footprint and investment cost but also reduces production efficiency. In addition, during the lamination process, traditional laminating equipment often relies on manual operation for material tension control and shearing, which can easily lead to weak lamination, material waste, and defects such as bubbles or wrinkles on the product surface.

[0004] Based on this, an improved laminating equipment is provided, which achieves efficient and reliable double-sided lamination through ingenious design and automated operation process, meeting the needs of modern industrial production for efficient, energy-saving and high-quality laminating processes.

[0005] The information disclosed above in the background art of this application is only used to understand the background of the concept of this application, and may contain information that does not constitute prior art. Summary of the Invention

[0006] Therefore, it is necessary to provide a coating device to address the above problems.

[0007] This application provides a coating device, which includes:

[0008] frame;

[0009] A conveying mechanism, disposed on the frame, includes a plurality of conveying rollers spaced apart along the conveying direction, the conveying rollers being used to carry workpieces and convey the workpieces along the conveying direction; and

[0010] A film coating device is provided on the frame. The film coating device includes a tension roller, a film cutting component, a first material cylinder, and a second material cylinder. The tension roller is spaced apart between any two adjacent conveying rollers in the conveying direction. The first material cylinder and the second material cylinder are located on opposite sides of the tension roller in the radial direction. A film is wound around the outer circumference of the first material cylinder and the second material cylinder. The film passes over the tension roller from the first material cylinder and enters the second material cylinder. The tension roller is located on the side of the film away from the conveying direction.

[0011] The film can cover both sides of the workpiece as it passes the tension roller along the conveying direction. The film-cutting component can cut the film when it covers the workpiece, and then re-wrap the broken film around the outer circumference of the tension roller after bonding, so as to achieve double-sided film coating of the workpiece.

[0012] The aforementioned laminating equipment offers at least the following advantages: Through its ingenious design, this laminating equipment achieves efficient and reliable double-sided lamination. Firstly, the conveying mechanism within the laminating equipment utilizes conveyor rollers to ensure the workpiece passes stably through the laminating area during transport. The conveyor rollers provide power to propel the workpiece forward. Since the film is fed from the first cylinder, around the tension roller, and into the second cylinder, the workpiece pushes the film out in the conveying direction, and the film automatically adheres to both the top and bottom surfaces of the workpiece. The tension rollers not only ensure appropriate film tension but also allow the film to work in conjunction with the conveyor rollers to cover both the top and bottom surfaces of the workpiece as it moves, thus achieving synchronous double-sided lamination. This design significantly improves lamination efficiency and reduces workpiece processing time. Furthermore, the film-cutting component in the laminating device precisely cuts the film after lamination and re-bonds the broken film, rewinding it onto the tension roller. This process not only reduces material waste but also ensures continuous equipment operation and improves production efficiency. Through this series of automated operations, the equipment effectively reduces the need for manual intervention, while also reducing operational complexity, improving production efficiency and coating quality, and reducing material waste and operational complexity, demonstrating significant technological advantages. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural view of a coating device provided in one embodiment of this application.

[0015] Figure 2 This is a side view of a coating apparatus provided in one embodiment of this application.

[0016] Figure 3 For this application Figure 2 A partial structural diagram of the coating equipment provided in the embodiment shows that the workpiece is still not in contact with the film.

[0017] Figure 4 This is a partial structural schematic diagram of a coating apparatus provided in one embodiment of this application, showing the workpiece being lifted up by the film.

[0018] Figure 5 This is a partial structural schematic diagram of a coating apparatus provided in one embodiment of the present application, in which a workpiece is to pass between a tension roller and a pressure roller.

[0019] Figure 6 This is a partial structural schematic diagram of a coating apparatus provided in one embodiment of the present application, showing the workpiece passing between the tension roller and the pressure roller.

[0020] Figure 7 This is a partial three-dimensional view of a coating device provided in one embodiment of this application.

[0021] Figure 8 This is another partial perspective view of a film-coating apparatus provided in one embodiment of the present application, showing the film-cutting component.

[0022] Figure label:

[0023] 10. Coating equipment; 20. Workpiece; 30. Film; 31. First film segment; 32. Second film segment; 100. Frame; 200. Conveying mechanism; 210. Tensioning roller; 220. Conveying roller; 300. Coating device; 310. First material cylinder; 320. Second material cylinder; 330. Film cutting component; 331. First scissor section; 332. Second scissor section; 400. Pressure roller; 500. Drive component; 610. First rotating assembly; 611. First transfer roller; 620. Second rotating assembly; 621. Second transfer roller; 700. Material box; D. Conveying direction. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In some embodiments, this application provides a coating apparatus 10, which includes a frame 100, a conveying mechanism 200, and a coating device 300. The conveying mechanism 200 is disposed on the frame 100, and the conveying mechanism 200 includes a plurality of conveying rollers 220 arranged at intervals along the conveying direction D. The conveying rollers 220 are used to carry workpieces 20 and convey the workpieces 20 along the conveying direction D. The coating device 300 is disposed on the frame 100. The coating device 300 includes a tension roller 210, a film cutting component 330, a first material cylinder 310, and a second material cylinder 320. The tension roller 210 is spaced apart between any two adjacent conveying rollers 220 in the conveying direction D. The first material cylinder 310 and the second material cylinder 320 are respectively located on opposite sides of the tension roller 210 in the radial direction. A film 30 is wound around the outer circumferential surface of the first material cylinder 310 and the second material cylinder 320. The film 30 passes around the tension roller 210 from the first material cylinder 310 and enters the second material cylinder 320. The tension roller 210 is located on the side of the film 30 away from the conveying direction D.

[0026] The workpiece 20 may include, but is not limited to, glass cover plates. The film 30 may be an electrostatic film. Electrostatic films have excellent adhesion properties. This characteristic allows the electrostatic film to adhere firmly to the target surface without the need for additional adhesives during the lamination process. This not only simplifies the production process but also reduces reliance on chemical adhesives, thereby reducing costs and environmental impact. Secondly, the use of electrostatic films improves the transparency and aesthetics of products. Because electrostatic films typically have good optical transparency, they do not affect the appearance and display effect of products when applied to their surfaces. This is particularly important for packaging and display products that require maintaining high-quality visual effects. Furthermore, the removability and reusability of electrostatic films are also significant advantages. Electrostatic films can be easily removed from surfaces without leaving residue, making them particularly suitable for applications requiring temporary protection or multiple uses. For example, this characteristic of electrostatic films is widely used in screen protectors and temporary packaging for electronic products. The film 30 can cover the opposite sides of the workpiece 20 when the workpiece 20 passes the tension roller 210 along the conveying direction D. The film cutting component 330 can (e.g., when the film 30 covers the workpiece 20) Figure 6 (As shown) The film 30 is cut, and the cut film 30 is glued together and then rewound around the outer circumferential surface of the tension roller 210 (as shown). Figure 3 As shown), to achieve double-sided coating of the workpiece 20.

[0027] The aforementioned coating equipment 10 has at least the following beneficial effects: Through its ingenious design, the coating equipment 10 achieves efficient and reliable double-sided coating. First, the conveying mechanism 200 in the coating equipment 10 utilizes the conveying roller 220 to ensure that the workpiece 20 can stably pass through the coating area during conveying; that is, the conveying roller 220 provides power to transport the workpiece 20 forward. Since the film 30 is fed from the first material cylinder 310, around the tension roller 210, and then into the second material cylinder 320, as... Figure 4 , Figure 5 and Figure 6 As shown, workpiece 20 will push the film 30 out in the conveying direction D, and the film 30 will automatically adhere to the upper and lower surfaces of workpiece 20. The tension roller 210 not only ensures appropriate tension of the film 30, but also allows the film 30 to work with the conveying roller 220 to cover both the upper and lower surfaces of workpiece 20 as it moves, thus achieving synchronous double-sided film coating. This design greatly improves coating efficiency and reduces the processing time of workpiece 20. Furthermore, as... Figure 6 and Figure 3 As shown, the film-cutting component 330 in the coating apparatus 300 can precisely cut the film 30 after the workpiece 20 has been coated, and then re-adhere and re-wrap the cut film 30 onto the tension roller 210. This process not only reduces material waste but also ensures continuous operation of the equipment and improves production efficiency. Through this series of automated operations, the equipment effectively reduces the need for manual intervention, while also reducing operational complexity, improving production efficiency and coating quality, and reducing material waste and operational complexity, demonstrating significant technical advantages.

[0028] Please see Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7In some embodiments, the coating apparatus 300 further includes a pressure roller 400 disposed on the frame 100. The pressure roller 400 is positioned above the tension roller 210 and on the side of the film 30 facing away from the tension roller 210. The pressure roller 400 can press the film 30 against the upper surface of the workpiece 20 as the workpiece 20 passes between the pressure roller 400 and the tension roller 210. The conveying roller 220 can also press the film 30 between the conveying roller 220 and the workpiece 20 against the lower surface of the workpiece 20 after the workpiece 20 passes through the tension roller 210. The pressure roller 400's position above the tension roller 210 and its location on the side of the film 30 facing away from the tension roller 210 cleverly utilizes the pressure of the pressure roller 400 to ensure a tighter fit of the film 30 against the upper surface of the workpiece 20 as it passes between the pressure roller 400 and the tension roller 210. Simultaneously, after the workpiece 20 passes through the tension roller 210, the conveying roller 220 presses the film 30 firmly onto the lower surface of the workpiece 20, ensuring uniform and firm adhesion of the film 30 to both sides of the workpiece 20. This design not only improves the adhesion and quality of the coating but also effectively prevents wrinkles or bubbles from forming on the film 30 during the coating process, further enhancing the overall coating effect. With the addition of the pressure roller 400, the coating process becomes more stable, and the flatness of the workpiece 20 surface and the smoothness of the coating are significantly improved. This improvement allows the equipment to maintain consistent coating quality when processing workpieces 20 of different thicknesses and materials, making it more adaptable. In summary, the introduction of the pressure roller 400 not only optimizes the tightness and quality of the coating but also improves the applicability and reliability of the equipment, enhancing the efficiency and effectiveness of the overall coating process.

[0029] Specifically, such as Figure 1 and Figure 2As shown, in some embodiments, the coating apparatus 300 further includes a drive member 500 disposed on the frame 100. The drive member 500 is connected to the pressure roller 400 and is used to drive the pressure roller 400 to move up and down to approach or move away from the tension roller 210. The pressure roller 400 can descend and press the film 30 against the upper surface of the workpiece 20 as the workpiece 20 passes between the pressure roller 400 and the tension roller 210. The coating apparatus 300 introduces a combined design of the drive member 500 and the pressure roller 400, further improving the flexibility and accuracy of the coating process. The drive member 500 is connected to the pressure roller 400, and by controlling the up and down movement of the pressure roller 400, its position can be flexibly adjusted according to the thickness of the workpiece 20 and the coating requirements. When the workpiece 20 passes between the pressure roller 400 and the tension roller 210, the drive member 500 can cause the pressure roller 400 to descend, thereby precisely pressing the film 30 against the upper surface of the workpiece 20. This design significantly improves the adaptability and efficiency of the coating process. Through the adjustment of the drive unit 500, the pressure roller 400 can adapt to workpieces 20 of varying thicknesses and sizes, ensuring uniform and tight adhesion of the film 30 to the surface of the workpiece 20. This flexible adjustment capability not only improves coating quality and reduces wrinkles and bubbles, but also enables the equipment to handle diverse workpieces 20, enhancing the applicability of the production line. Furthermore, the introduction of the drive unit 500 simplifies the operation process and reduces the need for manual intervention. Through automated lifting and adjustment, operators can more easily manage the coating process, improving production efficiency and the overall operational stability of the equipment.

[0030] Please see Figure 2In some embodiments, the coating apparatus 300 further includes a first rotating assembly 610 and a second rotating assembly 620 disposed on the frame 100. In each set of coating apparatuses 300, the first rotating assembly 610 and the second rotating assembly 620 are both disposed on the side of the pressure roller 400 opposite to the conveying direction D. The first rotating assembly 610 is located between the tension roller 210 and the first feed cylinder 310, and the second rotating assembly 620 is located between the tension roller 210 and the second feed cylinder 320. The film 30 is sequentially wound around the first rotating assembly 610, the tension roller 210, and the second rotating assembly 620 from the first feed cylinder 310 before entering the second feed cylinder 320. By providing the first rotating assembly 610 and the second rotating assembly 620, the coating apparatus 300 enhances the stability and controllability of the film 30 transmission. In each set of the coating apparatus 300, the first rotating assembly 610 and the second rotating assembly 620 are both located on the side of the pressure roller 400 opposite to the conveying direction D, rationally organizing the path of the film 30 so that it sequentially passes around the first rotating assembly 610, the tension roller 210, and the second rotating assembly 620 from the first cylinder 310 before entering the second cylinder 320. The technical benefits of this design are multifaceted. First, the rotating assembly optimizes the transmission path of the film 30, effectively reducing slack and offset during transmission, ensuring uniform tension throughout the coating process. Second, through the rational winding path, the film 30 maintains appropriate tension when passing the tension roller 210, thereby improving coating accuracy and quality and reducing wrinkles and bubbles. Furthermore, this design enhances the flexibility and adaptability of the apparatus. Guided by the rotating assemblies, the coating apparatus 300 can better handle films 30 of different materials and thicknesses, adapting to diverse production needs. Meanwhile, the introduction of the rotating assembly simplifies the replacement and adjustment process of the film 30, reduces operational difficulty, and improves production efficiency. In summary, the configuration of the first rotating assembly 610 and the second rotating assembly 620 significantly improves the stability of the film 30 transmission and the quality of film coating, providing strong support for the overall performance optimization of the coating device 300.

[0031] Specifically, such as Figure 2 , Figure 3 and Figure 4As shown, in some embodiments, the film 30 between the first rotating assembly 610 and the tension roller 210 is a first film segment 31, and the film 30 between the second rotating assembly 620 and the tension roller 210 is a second film segment 32, with the first film segment 31 and the second film segment 32 set at an acute angle. The coating apparatus 300 optimizes the transport path and tension control of the film 30 by defining the film 30 between the first rotating assembly 610 and the tension roller 210 as the first film segment 31 and the film 30 between the second rotating assembly 620 and the tension roller 210 as the second film segment 32, and by setting these two film segments at an acute angle. The acute angle setting can effectively improve the accuracy during the coating process. By adjusting the angles of the first film segment 31 and the second film segment 32, the angle and position of the film 30 when entering the tension roller 210 can be better controlled, ensuring a tighter and more uniform adhesion of the film 30 to the surface of the workpiece 20. This precise control reduces potential air bubbles and irregular bonding during the lamination process, improving the quality of the final product.

[0032] More specifically, such as Figure 2As shown, in some embodiments, the first winding assembly 610 includes at least one first transfer roller 611, and the second winding assembly 620 includes at least one second transfer roller 621. Both the first transfer roller 611 and the second transfer roller 621 are used for winding the film 30. By providing at least one first transfer roller 611 in the first winding assembly 610 of the coating apparatus 300 and at least one second transfer roller 621 in the second winding assembly 620, the transport path and tension control of the film 30 are significantly optimized. The technical effects of this design are reflected in several aspects. First, the introduction of the transfer rollers enhances the stability of the film 30 transport. The film 30 can be effectively supported and guided as it passes around these transfer rollers, which not only reduces slack and offset during transport but also ensures that the film 30 is always under appropriate tension. Such stability is crucial for improving the accuracy and quality of coating. Secondly, the film 30 between the first transfer roller 611 and the tension roller 210 is the first film segment 31, and the film 30 between the second transfer roller 621 and the tension roller 210 is the second film segment 32. The first film segment 31 and the second film segment 32 are set at an angle. In other words, the angle and position of the film 30 passing through the tension roller 210 can be precisely controlled by the first transfer roller 611 and the second transfer roller 621. For example, setting the film segment 31 and the second film segment 32 at an acute angle can effectively improve the accuracy of the lamination process. By adjusting the angle of the first film segment 31 and the second film segment 32, the angle and position of the film 30 when entering the tension roller 210 can be better controlled, ensuring that the film 30 adheres more tightly and evenly to the surface of the workpiece 20. This precise control reduces the possibility of air bubbles and irregular adhesion during the lamination process, improving the quality of the final product. The adhesion of the film 30 to the surface of the workpiece 20 is therefore tighter and more uniform, greatly reducing the generation of air bubbles and wrinkles. This precise control improves the quality of the final product, meeting high production standards. Furthermore, this design increases the adaptability and flexibility of the coating device 300. By adjusting the position and number of transfer rollers, the device can easily adapt to different specifications and materials of film 30, meeting diverse production needs. This flexibility not only improves the equipment's versatility but also allows it to adapt to different process requirements. The transfer rollers simplify operation and maintenance. Changing and adjusting the film 30 becomes easier, reducing the technical requirements for operators. Simultaneously, equipment commissioning and maintenance become simpler and more efficient, further improving production efficiency. In summary, by incorporating transfer rollers in the first and second rotating assemblies 620, the coating device 300 not only improves the stability of film 30 transport and coating quality but also enhances the equipment's adaptability and ease of operation, providing crucial support for optimizing overall performance.

[0033] Please see Figure 7In some embodiments, the film-cutting component 330 is disposed on the side of the pressure roller 400 facing away from the first rotating assembly 610, and located between the tension roller 210 and the conveying roller 220. The film-cutting component 330 may include, but is not limited to, scissors. The film-cutting component 330 is cleverly positioned on the side of the pressure roller 400 facing away from the first rotating assembly 610, and located between the tension roller 210 and the conveying roller 220. This design layout has significant technical advantages, optimizing the cutting and conveying process of the film 30. First, the positioning of the film-cutting component 330 ensures that the film 30 reaches an ideal tension state after passing through the tension roller 210, thereby maintaining high precision and uniformity during cutting. This precise cutting not only improves product quality but also reduces material waste caused by poor cutting. Second, the close proximity of the film-cutting component 330 to the conveying roller 220 allows the cut film 30 to immediately enter the conveying stage, reducing potential slack and shifting of the film 30 after cutting. This compact layout effectively shortens the transport path of the film 30 in the equipment, improving production efficiency.

[0034] Please see Figure 8 In some embodiments, the film-cutting member 330 includes a first scissor portion 331 and a second scissor portion 332. When both sides of the workpiece 20 are covered with film 30 and the film-cutting member 330 is to cut the film 30 on the workpiece 20, the first scissor portion 331 is located above the film 30 on the upper surface of the workpiece 20, and the second scissor portion 332 is located below the film 30 on the lower surface of the workpiece 20. The first scissor portion 331 and the second scissor portion 332 can approach each other to bring the film 30 on both sides of the workpiece 20 closer together and stick together, and to separate the film 30 on the workpiece 20 from the other film 30. Understandably, when the first scissor section 331 and the second scissor section 332 approach each other, the film 30 on both sides of the upper and lower surfaces of the workpiece 20 will also approach each other under the drive of the first scissor section 331 and the second scissor section 332. Before the first scissor section 331 and the second scissor section 332 cut the film 30 on both sides of the workpiece 20, the film 30 on both sides will come into contact with each other to achieve adhesion (taking the film 30 as an example, the electrostatic film has excellent adhesion properties, so the electrostatic films on both sides can be re-adheded by coming into contact with each other). Then the first scissor section 331 and the second scissor section 332 will approach each other further to cut the film 30 on the upper and lower surfaces of the workpiece 20, so that the film 30 on both sides of the workpiece 20 is separated from the film 30 on the other coating devices 300.

[0035] Please see Figure 1 and Figure 2In some embodiments, the number of tension rollers 210 and coating devices 300 is set to multiple, with the multiple tension rollers 210 spaced apart in the conveying direction D, and each tension roller 210 located between two conveying rollers 220. Each coating device 300 corresponds one-to-one with a tension roller 210. This structural arrangement means that the workpiece 20 can pass through multiple coating devices 300 in the conveying direction D, thereby completing multiple coating processes.

[0036] Please see Figure 1 and Figure 2 In some embodiments, the coating equipment 10 further includes a hopper 700 located at the end of the conveying mechanism 200 in the conveying direction D. The hopper 700 is used to receive the coated workpieces 20. First, the hopper 700 allows the coated workpieces 20 to be automatically transferred from the conveying mechanism 200 to a storage space. This automatic transfer reduces the need for manual intervention, improving the automation level and overall efficiency of the production line. Operators do not need to frequently manually collect the workpieces 20, allowing them to focus more on equipment monitoring and other critical tasks. Second, the design of the hopper 700 can be customized according to the size and characteristics of the workpieces 20 to ensure their stability and safety during transfer. This customized design prevents collisions or damage to the workpieces 20 during transfer, ensuring the quality and integrity of the final product. Furthermore, the use of the hopper 700 contributes to a cleaner and more orderly production environment. By concentrating the coated workpieces 20 in the hopper 700, the random stacking of workpieces 20 in the production area is effectively avoided, reducing clutter and improving the safety and management efficiency of the working environment. Finally, the configuration of the material bin 700 can also be seamlessly integrated with subsequent packaging or transportation processes. Through a rationally designed discharge mechanism, the workpiece 20 in the material bin 700 can directly enter the next processing stage, such as packaging or boxing, thereby further optimizing the production process, shortening the production cycle, improving not only the automation level and efficiency of the production line, but also enhancing the safety of workpiece 20 handling and the cleanliness of the production environment, while providing convenience for the connection of subsequent processes. In summary, the workpiece 20 adjustment device provided in this application, through its rational structural design and height difference setting, solves the stability and accuracy problems existing in the prior art, significantly improving the efficiency and reliability of the workpiece 20 flipping and conveying process, and is especially suitable for workpiece 20 flipping operations requiring high-precision detection.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely illustrative of several implementation methods of this application, and 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 those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, 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 possible implementation.

[0044] In the description of this specification, references to terms such as "an embodiment," "another implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

Claims

1. A coating device, characterized in that, include: frame; A conveying mechanism is provided on the frame. The conveying mechanism includes a plurality of conveying rollers arranged at intervals along the conveying direction. The conveying rollers are used to carry the workpiece and convey the workpiece along the conveying direction. A film coating device is provided on the frame. The film coating device includes a tension roller, a film cutting component, a first material cylinder, and a second material cylinder. The tension roller is spaced apart between any two adjacent conveying rollers in the conveying direction. The first material cylinder and the second material cylinder are located on opposite sides of the tension roller in the radial direction. A film is wound around the outer circumference of the first material cylinder and the second material cylinder. The film passes over the tension roller from the first material cylinder and enters the second material cylinder. The tension roller is located on the side of the film away from the conveying direction. The film can cover the opposite sides of the workpiece when the workpiece passes the tension roller along the conveying direction. The film cutting component can cut the film when the film covers the workpiece, and then re-wrap the broken film around the outer circumference of the tension roller after bonding, so as to achieve double-sided film covering of the workpiece. A pressure roller, disposed on the frame, is positioned above the tension roller and on the side of the film facing away from the tension roller. The pressure roller presses the film onto the upper surface of the workpiece as it passes between the pressure roller and the tension roller. The conveying roller presses the film between the conveying roller and the workpiece onto the lower surface of the workpiece after the workpiece has passed through the tension roller. A first rotating assembly and a second rotating assembly are disposed on the frame. Both the first rotating assembly and the second rotating assembly are disposed on the side of the pressure roller away from the conveying direction. The first rotating assembly is located between the tension roller and the first material cylinder, and the second rotating assembly is located between the tension roller and the second material cylinder. The material film is sequentially wound around the first rotating assembly, the tension roller and the second rotating assembly from the first material cylinder and then enters the second material cylinder.

2. The coating equipment according to claim 1, characterized in that, The coating device further includes a drive unit disposed on the frame. The drive unit is connected to the pressure roller and is used to drive the pressure roller to move up and down to move closer to or away from the tension roller. The pressure roller can descend and press the film onto the upper surface of the workpiece when the workpiece passes between the pressure roller and the tension roller.

3. The coating equipment according to claim 1, characterized in that, The film between the first rotating assembly and the tension roller is the first film segment, and the film between the second rotating assembly and the tension roller is the second film segment. The first film segment and the second film segment are set at an acute angle.

4. The coating equipment according to claim 3, characterized in that, The first winding assembly includes at least one first transfer roller, and the second winding assembly includes at least one second transfer roller. Both the first transfer roller and the second transfer roller are used for winding the film.

5. The coating equipment according to claim 1, characterized in that, The film-cutting component is located on the side of the pressure roller facing away from the first rotating assembly.

6. The coating equipment according to claim 1, characterized in that, The film-cutting component includes a first scissor section and a second scissor section. When both sides of the workpiece are covered with film and the film-cutting component is to cut the film on the workpiece, the first scissor section is located above the film on the upper surface of the workpiece, and the second scissor section is located below the film on the lower surface of the workpiece. The first scissor section and the second scissor section can approach each other to make the film on both sides of the workpiece approach each other and adhere, and to separate the film on the workpiece from the rest of the film.

7. The coating equipment according to any one of claims 1 to 6, characterized in that, The number of each coating device is set to multiple and they are spaced apart along the conveying direction.

8. The coating equipment according to any one of claims 1 to 6, characterized in that, The film is an electrostatic film.

9. The coating equipment according to any one of claims 1 to 6, characterized in that, The coating equipment also includes a material bin, which is located at the end of the conveying mechanism in the conveying direction, and the material bin is used to receive the coated workpiece.

Images