A roll-to-roll vacuum coating tension control mechanism
By introducing tension adjustment components and tensioning auxiliary parts into roll-to-roll vacuum coating equipment and utilizing real-time feedback from pressure sensors and hydraulic cylinders, the problems of lag and low adjustment accuracy in tension control in traditional equipment are solved. This achieves rapid response and precise adjustment of film tension, improving the efficiency and stability of the coating process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI PINGYUAN NEW MATERIALS CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-21
Smart Images
Figure CN224531015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tension control technology, specifically a roll-to-roll vacuum coating tension control mechanism. Background Technology
[0002] Roll-to-roll vacuum coating technology is a highly efficient and continuous material surface treatment process widely used in flexible electronics, optical thin films, packaging materials, and new energy devices. This process optimizes the optical, electrical, or barrier properties of materials by depositing functional materials onto the surface of a flexible substrate in a vacuum environment. During this process, the stability of the film tension directly affects the uniformity of the coating, the flatness of the substrate, and the continuity of production; therefore, tension control is one of the key technologies in roll-to-roll systems.
[0003] In roll-to-roll vacuum coating equipment, the thin film undergoes multiple stages, including unwinding, transport, coating, and rewinding. Tension fluctuations can be caused by factors such as material properties, speed changes, or mechanical vibration. Traditional tension control methods often employ mechanical damping, pneumatic braking, or open-loop control, which suffer from problems such as response lag, low adjustment accuracy, and poor adaptability. Although control strategies combining sensor feedback and electric actuators have become increasingly popular in recent years, they still struggle to meet the demands of rapid dynamic adjustment and multi-position synchronous coordination under high-speed operation, thus limiting the development of coating processes towards higher precision and efficiency.
[0004] Therefore, we propose a roll-to-roll vacuum coating tension control mechanism to solve the problems mentioned above. Utility Model Content
[0005] 1. The technical problem to be solved by the utility model: The purpose of this invention is to provide a roll-to-roll vacuum coating tension control mechanism to solve the problems currently existing in the market as described in the background.
[0006] 2. Technical Solution: To achieve the above objectives, the present invention provides the following technical solution: a roll-to-roll vacuum coating tension control mechanism, comprising a substrate, a tension adjustment component mounted on the upper middle part of the substrate, and a set of tensioning auxiliary components provided on both the left and right sides of the tension adjustment component, and a set of transmission components respectively connected to the left and right sides of the tension adjustment component.
[0007] Furthermore, the tension adjustment assembly includes a hydraulic cylinder fixed to the upper middle part of the base plate. The output end of the hydraulic cylinder is fixedly connected to a movable plate, and a pressure sensor is installed at the upper middle part of the movable plate. The output end of the pressure sensor is connected to a mounting bracket, and an adjustment roller is rotatably mounted on the mounting bracket.
[0008] The above technical solution enables the pressure sensor to transmit pressure signals to the control system in real time. When the control system determines that the tension is abnormal, it controls the hydraulic cylinder to extend or shorten.
[0009] Furthermore, the tensioning auxiliary component includes a second mounting plate, on which an adjusting roller is rotatably mounted, and the two sets of tensioning auxiliary components are symmetrically distributed about the center of the tensioning adjustment assembly.
[0010] The above technical solution ensures that the force on the regulating roller is uniform.
[0011] Furthermore, both the tension adjustment component and the tensioning auxiliary component are equipped with four guide rods, which are fixedly installed on the base plate. The movable plate, mounting bracket one, and mounting plate two respectively form an upper and lower sliding structure with the corresponding guide rods.
[0012] The above technical solution enables the movable plate, mounting bracket one, and mounting plate two to move stably up and down under the action of the guide rod.
[0013] Furthermore, the transmission assembly includes a guide gear roller rotatably mounted on the substrate via a bearing. A toothed plate one and a toothed plate two are respectively meshed on the left and right sides of the guide gear roller, and both toothed plates one and two are slidably mounted on a limiting rod, which is fixed to the substrate.
[0014] The above technical solution enables toothed plate one and toothed plate two to move in opposite directions under the action of the guide gear roller.
[0015] Furthermore, the upper end of the first toothed plate is fixed to the side of the movable plate, and the upper end of the second toothed plate is fixed to the side of the second mounting plate.
[0016] The above technical solution enables the movable plate and the mounting plate to move in opposite directions.
[0017] 3. Beneficial effects: Compared with the prior art, the roll-to-roll vacuum coating tension control mechanism of this utility model, through the cooperation of tension adjustment components and tension auxiliary components, achieves rapid response adjustment and control of film tension. Its specific details are as follows: The film passes sequentially around the adjusting roller 2 of the left tensioning auxiliary component, the adjusting roller 1 of the middle tensioning adjustment component, and the adjusting roller 2 of the right tensioning auxiliary component. The tension of the film acts directly on the adjusting roller 1 and is transmitted to the pressure sensor below through the adjusting roller 1. The pressure signal is transmitted to the control system in real time. When the control system detects an abnormal tension, the control system instructs the hydraulic cylinder to perform corresponding work, pushing the movable plate to slide along the corresponding guide rod. The movable plate drives the pressure sensor, the mounting bracket 1, and the adjusting roller 1 to move synchronously. The adjusting roller 1 pushes the film upward to tighten or relaxes the film downward to increase or decrease the tension of the film until the pressure detected by the pressure sensor returns to the threshold. The hydraulic cylinder then stops moving, thus realizing the tension control of the film. During the displacement of the movable plate, the toothed plate 1 is moved synchronously. The toothed plate 1, in turn, drives the toothed plate 2, which is meshed with the guide gear roller, to move in the opposite direction. This causes the mounting plate 2 of the tensioning auxiliary component to move in the opposite direction to the movable plate, enabling rapid adjustment of the film tension. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a schematic diagram of the tension adjustment component of this utility model; Figure 4 This is a schematic diagram of the tensioning auxiliary component of this utility model.
[0019] In the diagram: 1. Base plate; 2. Tension adjustment assembly; 21. Hydraulic cylinder; 22. Movable plate; 23. Pressure sensor; 24. Mounting bracket one; 25. Adjusting roller one; 3. Guide rod; 4. Tensioning auxiliary component; 41. Mounting plate two; 42. Adjusting roller two; 5. Transmission assembly; 51. Guide gear roller; 52. Toothed plate one; 53. Toothed plate two; 6. Limiting rod. Detailed Implementation
[0020] To facilitate understanding of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to 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.
[0022] Furthermore, the terms "first" and "second" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" 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 mechanical connection or an electrical 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 according to the specific circumstances. Example
[0024] Please see Figure 1-4 A roll-to-roll vacuum coating tension control mechanism includes a substrate 1, a tension adjustment component 2 is installed at the upper middle part of the substrate 1, and a set of tension auxiliary components 4 are provided on both the left and right sides of the tension adjustment component 2, and a set of transmission components 5 are respectively connected to the left and right sides of the tension adjustment component 2. The film passes sequentially around the adjusting roller 42 of the left tensioning auxiliary component 4, the adjusting roller 25 of the middle tensioning adjustment component 2, and the adjusting roller 42 of the right tensioning auxiliary component 4. The tension of the film acts directly on the adjusting roller 25 and is transmitted to the pressure sensor 23 below through the adjusting roller 25. The pressure signal is transmitted to the control system in real time. When the control system judges that the tension is abnormal, the control system instructs the hydraulic cylinder 21 to perform corresponding work, pushing the movable plate 22 to slide along the corresponding guide rod 3. The movable plate 22 drives the pressure sensor 23, the mounting bracket 24 and the adjusting roller 25 to move synchronously. The adjusting roller 25 pushes the film upward to tighten or relaxes the film downward to increase or decrease the tension of the film until the pressure detected by the pressure sensor 23 returns to the threshold. The hydraulic cylinder 21 stops moving, thus realizing the tension control of the film. The tension adjustment assembly 2 includes a hydraulic cylinder 21 fixed to the upper middle part of the base plate 1. A movable plate 22 is fixedly connected to the output end of the hydraulic cylinder 21. A pressure sensor 23 is mounted on the upper middle part of the movable plate 22, and the output end of the pressure sensor 23 is connected to a mounting bracket 24. An adjusting roller 25 is rotatably mounted on the mounting bracket 24. The tensioning auxiliary component 4 includes a mounting plate 41, on which an adjusting roller 42 is rotatably mounted. The two sets of tensioning auxiliary components 4 are symmetrically distributed about the center of the tension adjustment assembly 2. Both the tension adjustment assembly 2 and the tensioning auxiliary component 4 are equipped with four guide rods 3. The guide rod 3 is fixedly installed on the base plate 1, and the movable plate 22, the mounting bracket 1 24 and the mounting plate 2 41 respectively form an upper and lower sliding structure with the corresponding guide rod 3; the transmission assembly 5 includes a guide gear roller 51 rotatably installed on the base plate 1 through a bearing, and toothed plates 1 52 and 2 53 are respectively meshed on the left and right sides of the guide gear roller 51, and toothed plates 1 52 and 2 53 are both slidably installed on the limiting rod 6, and the limiting rod 6 is fixed on the base plate 1; the upper end of toothed plate 1 52 is fixed to the side of the movable plate 22, and the upper end of toothed plate 2 53 is fixed to the side of the mounting plate 2 41; During the displacement of the movable plate 22, it drives the toothed plate 52 to move synchronously. The toothed plate 52, in turn, drives the toothed plate 53, which meshes with the guide gear roller 51, to move in the opposite direction. This causes the mounting plate 41 of the tensioning auxiliary component 4 to move in the opposite direction to the movable plate 22, so that the tension of the film can be quickly adjusted.
[0025] Working principle: When using this roll-to-roll vacuum coating tension control mechanism, such as... Figure 1-4 As shown, the film first passes sequentially around the adjusting roller 42 of the left tensioning auxiliary component 4, the adjusting roller 25 of the middle tensioning adjustment component 2, and the adjusting roller 42 of the right tensioning auxiliary component 4. The tension of the film acts directly on the adjusting roller 25 and is transmitted to the pressure sensor 23 below through the adjusting roller 25. The pressure signal is transmitted to the control system in real time. When the control system judges that the tension is abnormal, the control system instructs the hydraulic cylinder 21 to perform corresponding work, driving the adjusting roller 25 to push the film upward or relax the film downward, increasing or decreasing the tension of the film, until the pressure detected by the pressure sensor 23 returns to the threshold, the hydraulic cylinder 21 stops moving, realizing the tension control of the film. During the up and down movement of the movable plate 22, the tensioning auxiliary component 4 is driven to move in the opposite direction through the transmission component 5, so as to quickly adjust the tension of the film.
[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A roll-to-roll vacuum coating tension control mechanism, characterized in that: The substrate (1) is provided with a tension adjustment assembly (2) installed at the upper middle part of the substrate (1), and a set of tensioning auxiliary parts (4) are provided on both the left and right sides of the tension adjustment assembly (2), and the two sets of tensioning auxiliary parts (4) are respectively connected to a set of transmission components (5) on the left and right sides of the tension adjustment assembly (2).
2. The roll-to-roll vacuum coating tension control mechanism according to claim 1, characterized in that: The tension adjustment assembly (2) includes a hydraulic cylinder (21) fixed at the upper middle part of the base plate (1). The output end of the hydraulic cylinder (21) is fixedly connected to a movable plate (22), and a pressure sensor (23) is installed at the upper middle part of the movable plate (22). The output end of the pressure sensor (23) is connected to a mounting bracket (24), and an adjustment roller (25) is rotatably mounted on the mounting bracket (24).
3. The roll-to-roll vacuum coating tension control mechanism according to claim 2, characterized in that: The tensioning auxiliary component (4) includes a second mounting plate (41), on which an adjustment roller (42) is rotatably mounted, and the two sets of tensioning auxiliary components (4) are symmetrically distributed about the center of the tensioning adjustment component (2).
4. The roll-to-roll vacuum coating tension control mechanism according to claim 3, characterized in that: The tension adjustment component (2) and the tension auxiliary component (4) are both equipped with four guide rods (3), and the guide rods (3) are fixedly installed on the base plate (1). The movable plate (22), the mounting bracket one (24) and the mounting plate two (41) respectively form an upper and lower sliding structure with the corresponding guide rods (3).
5. The roll-to-roll vacuum coating tension control mechanism according to claim 4, characterized in that: The transmission assembly (5) includes a guide gear roller (51) rotatably mounted on the base plate (1) via a bearing. The left and right sides of the guide gear roller (51) are respectively meshed with a toothed plate (52) and a toothed plate (53). The toothed plate (52) and the toothed plate (53) are both slidably mounted on a limiting rod (6) and the limiting rod (6) is fixed on the base plate (1).
6. The roll-to-roll vacuum coating tension control mechanism according to claim 5, characterized in that: The upper end of the toothed plate one (52) is fixed to the side of the movable plate (22), and the upper end of the toothed plate two (53) is fixed to the side of the mounting plate two (41).