Independent film coating mechanism

Abstract

The utility model relates to the field of digital printing machine auxiliary equipment, concretely relates to an independent laminating mechanism, including frame, still including corona component, laminating traction assembly and unwinding, corona component is used for carrying out corona treatment to laminating material, unwinding is used for installing the covered film, and laminating traction assembly is used for tightly pressing laminating material and covered film. Through setting up the covered film of unwinding installation, through setting up laminating traction assembly tightly pressing laminating material and covered film. Through the reasonable setting of corona component, unwinding and laminating traction assembly, form independent laminating mechanism, be convenient for nimble and add on the existing equipment, increase laminating function. Solveed the problem that the existing digital printing machine does not have laminating function, cannot satisfy the demand of customer to special material needs laminating.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for digital printing machines, and in particular to an independent laminating mechanism. Background Technology

[0002] Existing digital printing machines lack lamination capabilities, failing to meet customers' needs for laminating special materials. Furthermore, after the material passes through the digital printing machine, UV ink is already printed on the surface, resulting in an overly smooth surface, insufficient lamination adhesion, and a tendency for poor lamination effects and easy film peeling off.

[0003] Therefore, there is an urgent need for an independent laminating mechanism that can be applied to digital printing machines and has a good laminating effect. Utility Model Content

[0004] To address the issue that existing digital printing machines lack lamination capabilities and cannot meet customers' needs for laminating special materials.

[0005] This utility model provides an independent coating mechanism, including a frame, a corona component, a coating traction component, and an unwinding component. The corona component is used to perform corona treatment on the material to be coated; the unwinding component is used to install the film to be coated; and the coating traction component is used to tightly press the material to be coated and the film to be coated together.

[0006] Preferably, the corona assembly includes a corona generator, a discharge electrode, and a corona roller arranged sequentially from top to bottom on a frame, with the material to be coated located between the discharge electrode and the corona roller.

[0007] Preferably, the corona assembly further includes a first guide roller and a second guide roller disposed on the frame, the first guide roller and the second guide roller being located on the same horizontal line and respectively located on both sides of the corona roller.

[0008] Preferably, the film coating traction assembly includes a rotating assembly, an upper pressing roller, a lower pressing roller, and an actuator mounted on the frame. The rotating assembly and the frame are hinged. The material to be coated passes through the lower pressing roller near the side of the upper pressing roller, and the film to be coated passes through the upper pressing roller near the side of the lower pressing roller. The upper pressing roller is connected to the rotating assembly. One end of the actuator is fixedly connected to the frame, and the movable end of the actuator is fixedly connected to the rotating assembly.

[0009] Preferably, the rotating assembly includes a reinforcing rod and a first side plate and a second side plate connected to both ends of the reinforcing rod. The first side plate is hinged to the frame, and the two ends of the upper pressing roller are rotatably connected to the first side plate and the second side plate, respectively.

[0010] Preferably, the actuator is one of a pneumatic actuator, a hydraulic actuator, or an electric actuator.

[0011] Preferably, an independent coating mechanism further includes a first support rod, a second support rod, and a third guide roller disposed on the frame. The first support rod is located between the corona assembly and the coating traction assembly, the second support rod is used to guide the coated material, and multiple third guide rollers are provided and distributed around the coating traction assembly.

[0012] Preferably, the bottom of the frame is provided with a support, which is a support leg or a caster wheel.

[0013] The beneficial effects of this utility model are reflected in:

[0014] 1) By setting up an unwinding installation for the coated film and a coating traction assembly to tightly press the material to be coated and the coated film together, an independent coating mechanism is formed through the rational arrangement of the corona component, unwinding, and coating traction assembly. This allows for flexible installation on existing equipment, adding coating functionality. This solves the problem that existing digital printing machines lack coating capabilities and cannot meet customers' needs for coating special materials.

[0015] 2) Install a corona machine before lamination. The corona discharge function of the corona machine improves the surface characteristics of the material, especially the surface characteristics of non-polar plastic films, thereby enhancing the printability and coating adhesion of the material and making the lamination effect better. This solves the problem that after the material passes through the digital printing machine and UV ink is printed on the surface, the material surface becomes too smooth, the lamination adhesion is insufficient, and the lamination effect is poor and the film is easy to peel off. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of an independent coating provided by this utility model.

[0017] In the diagram: 1-Frame; 2-Corona assembly; 21-Corona main unit; 22-Discharge electrode; 23-Corona roller; 24-First guide roller; 25-Second guide roller; 3-Coating traction assembly; 31-Rotation assembly; 32-Upper pressing roller; 33-Lower pressing roller; 34-Actuator; 4-Unwinding; 5-First support rod; 6-Second support rod; 7-Third guide roller; 8-Support component; 9-Material to be coated; 10-Coated film. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] Reference Figure 1An independent coating mechanism includes a frame 1, a corona component 2, a coating traction component 3, and an unwinding component 4. The corona component 2 is used to perform corona treatment on the material to be coated 9; the unwinding component 4 is used to install the film to be coated 10; and the coating traction component 3 is used to tightly press the material to be coated 9 and the film to be coated 10 together.

[0020] By setting up the unwinding 4 to install the coating film 10, and by setting up the coating traction assembly 3 to tightly press the material to be coated 9 and the coating film 10 together, an independent coating mechanism is formed through the reasonable arrangement of the corona component 2, unwinding 4, and coating traction assembly 3. This allows for flexible installation on existing equipment to add coating functionality. This solves the problem that existing digital printing machines lack coating functionality and cannot meet customers' needs for coating special materials.

[0021] Before lamination, a corona machine is installed. The corona discharge function of the corona machine improves the surface properties of the material, especially the surface properties of non-polar plastic films, thereby enhancing the printability and coating adhesion of the material and making the lamination effect better. This solves the problem that after the material has been printed with UV ink by a digital printing machine, the surface of the material becomes too smooth, resulting in insufficient lamination adhesion, poor lamination effect, and easy peeling and detachment of the film.

[0022] In some embodiments, the corona assembly 2 includes a corona host 21, a discharge electrode 22, and a corona roller 23 arranged sequentially from top to bottom on the frame 1, with the material to be coated 9 located between the discharge electrode 22 and the corona roller 23.

[0023] The space between the discharge electrode 22 and the corona roller 23 is the core area of ​​the corona treatment. Placing the material to be coated 9 within this area ensures that its surface is fully exposed to the corona discharge zone, reducing edge effects or uneven electric field distribution. Specifically, the material to be coated 9 is positioned close to the corona roller 23, which helps form a stable grounding circuit and enhances the corona effect. The top-to-bottom arrangement of the corona generator 21, discharge electrode 22, and corona roller 23 facilitates integration with the coating traction assembly 3 and the unwinding 4, achieving a compact design and saving space.

[0024] Preferably, the corona assembly 2 further includes a first guide roller 24 and a second guide roller 25 disposed on the frame 1. The first guide roller 24 and the second guide roller 25 are located on the same horizontal line and are respectively located on both sides of the corona roller 23.

[0025] Specifically, the material 9 to be coated first passes through the bottom of the first guide roller 24 from the left side, then exits from the right side of the first guide roller 24, then adheres tightly to the top of the corona roller 23, and finally passes through the bottom of the second guide roller 25 from the left side, then exits from the right side of the second guide roller 25. By setting the first guide roller 24 and the second guide roller 25, on the one hand, they guide the material 9 to be coated smoothly and linearly into and out of the corona roller 23, reducing the deviation or slippage of the material 9 during the transmission process; on the other hand, they maintain tension, so that the material 9 to be coated will not wrinkle or loosen during the corona treatment.

[0026] In some embodiments, the film-coating traction assembly 3 includes a rotating assembly 31, an upper pressing roller 32, a lower pressing roller 33, and an actuator 34 disposed on the frame 1. The rotating assembly 31 is hinged to the frame 1. The film to be coated 9 passes through the lower pressing roller 33 on the side near the upper pressing roller 32. The film to be coated 10 passes through the upper pressing roller 32 on the side near the lower pressing roller 33. The upper pressing roller 32 is connected to the rotating assembly 31. One end of the actuator 34 is fixedly connected to the frame 1, and the movable end of the actuator 34 is fixedly connected to the rotating assembly 31.

[0027] The rotating assembly 31 is hinged to the frame 1, ensuring that the upper pressing roller 32 maintains good parallelism and contact during the pressing process, preventing uneven coating or air bubbles caused by misalignment. The actuator 34 pushes the rotating assembly 31 to move the upper pressing roller 32 up and down, adjusting the pressure between the upper pressing roller 32 and the lower pressing roller 33 to accommodate different thicknesses or materials of the material to be coated 9 and the film to be coated 10, ensuring tight bonding.

[0028] Preferably, the rotating assembly 31 includes a reinforcing rod and a first side plate and a second side plate connected to both ends of the reinforcing rod. The first side plate is hinged to the frame 1, and the two ends of the upper pressing roller 32 are rotatably connected to the first side plate and the second side plate, respectively.

[0029] The two ends of the reinforcing rod are connected to the first side plate and the second side plate respectively, enhancing the rigidity and stability of the entire rotating assembly 31 and preventing deformation or vibration during operation, thereby ensuring the coating quality. The first side plate is hinged to the frame 1, allowing the rotating assembly 31 to swing up and down around the hinge point. In conjunction with the actuator 34, the distance and pressure between the upper pressing roller 32 and the lower pressing roller 33 can be flexibly adjusted to adapt to the coating requirements of materials of different thicknesses or materials. Specifically, the two ends of the upper pressing roller 32 are rotatably connected to the first side plate and the second side plate respectively via bearings, ensuring that the upper pressing roller 32 remains parallel to its initial state throughout the entire operation, avoiding uneven pressing that could affect the coating effect.

[0030] Preferably, the actuator 34 is one of a pneumatic actuator 34, a hydraulic actuator 34, or an electric actuator 34.

[0031] The pneumatic actuator 34, hydraulic actuator 34 and electric actuator 34 are all standardized components, which are easy to install and have low maintenance and replacement costs.

[0032] In some embodiments, an independent coating mechanism further includes a first support rod 5, a second support rod 6 and a third guide roller 7 disposed on the frame 1. The first support rod 5 is located between the corona assembly 2 and the coating traction assembly 3. The second support rod 6 is used to guide the coated material. The third guide roller 7 is provided in multiples and distributed around the coating traction assembly 3.

[0033] By setting the first support rod 5, it is ensured that the material to be coated 9 can smoothly transition to the coating traction component 3 after corona treatment for coating processing. This helps maintain the tension stability of the material to be coated 9 and avoids displacement or wrinkling of the material to be coated 9 due to improper transition. By setting the second support rod 6, a clear path is provided to guide the coated material away from the area where the coating traction component 3 is located, ensuring that the coated material can smoothly enter the next process or collection device and preventing slippage or folding of the coated material. There are multiple third guide rollers 7, preferably four. At least one third guide roller 7 is located between the coating traction component 3 and the unwinding device 4 to guide the coated film 10 smoothly into the coating traction component 3, ensuring that the coated film 10 can be coated stably. The remaining third guide rollers 7 are arranged at the output end of the coating traction component 3 to smoothly pull the coated material to the second support rod 6 for subsequent unwinding and rewinding.

[0034] In some embodiments, the bottom of the frame 1 is provided with a support member 8, which is a support leg or a caster wheel.

[0035] When support member 8 is a foot, it allows the independent laminating mechanism to be placed stably on the ground, preventing the equipment from shaking due to vibration or external force during operation, thus ensuring the stability and accuracy of the laminating process. When support member 8 is a caster, it facilitates the flexible movement and position adjustment of the entire independent laminating mechanism.

[0036] In the description of the embodiments of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "center," "top," "bottom," "top," "bottom," "inner," "outer," "inner side," and "outer side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. "Inner side" refers to the interior or enclosed area or space. "Outer perimeter" refers to the area surrounding a specific component or specific area.

[0037] In the description of embodiments of this utility model, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An independent coating mechanism, comprising a frame, characterized in that: It also includes a corona treatment assembly, a coating traction assembly, and an unwinding assembly. The corona treatment assembly is used to corona treat the material to be coated; the unwinding assembly is used to install the film to be coated; and the coating traction assembly is used to tightly press the material to be coated and the film to be coated together.

2. The independent coating mechanism according to claim 1, characterized in that: The corona assembly includes a corona generator, a discharge electrode, and a corona roller arranged sequentially from top to bottom on a frame, with the material to be coated located between the discharge electrode and the corona roller.

3. The independent coating mechanism according to claim 2, characterized in that: The corona assembly also includes a first guide roller and a second guide roller disposed on the frame. The first guide roller and the second guide roller are located on the same horizontal line and are respectively located on both sides of the corona roller.

4. The independent coating mechanism according to claim 1, characterized in that: The film coating traction assembly includes a rotating assembly, an upper pressing roller, a lower pressing roller, and an actuator mounted on the frame. The rotating assembly is hinged to the frame. The material to be coated passes through the lower pressing roller near the side of the upper pressing roller, and the film to be coated passes through the upper pressing roller near the side of the lower pressing roller. The upper pressing roller is connected to the rotating assembly. One end of the actuator is fixedly connected to the frame, and the movable end of the actuator is fixedly connected to the rotating assembly.

5. The independent coating mechanism according to claim 4, characterized in that: The rotating assembly includes a reinforcing rod and a first side plate and a second side plate connected to both ends of the reinforcing rod. The first side plate is hinged to the frame, and the two ends of the upper pressing roller are rotatably connected to the first side plate and the second side plate, respectively.

6. An independent coating mechanism according to claim 4 or 5, characterized in that: The actuator is one of a pneumatic actuator, a hydraulic actuator, or an electric actuator.

7. The independent coating mechanism according to claim 1, characterized in that: It also includes a first support rod, a second support rod, and a third guide roller disposed on the frame. The first support rod is located between the corona assembly and the film coating traction assembly. The second support rod is used to guide the coated material. There are multiple third guide rollers, which are distributed around the film coating traction assembly.

8. The independent coating mechanism according to claim 1, characterized in that: The bottom of the frame is equipped with a support, which can be a support leg or a caster wheel.

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