An UV printer film feeding mechanism
Through modular design and optimized control, the problem of unstable film delivery in UV printers has been solved, enabling high-precision fully automated continuous production and improving printing accuracy and finished product quality.
Patent Information
- Application Number
- CN202522571692.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-12-03
AI Technical Summary
Existing UV printers suffer from problems such as film feeding deviation, poor synchronization, and easy deviation of the printed film during the film feeding process, resulting in poor printing accuracy and finished product quality. Furthermore, traditional equipment cannot achieve effective integration and coordinated operation of film feeding, lamination, and film collection.
The modular design includes unwinding, separating, printing, laminating, and rewinding modules. It utilizes a damping adjustment component combined with an air bearing to control membrane tension, separates the membrane from the separator and air guide rollers, fixes the membrane with negative pressure adsorption, and integrates a heating and pressing device for closed-loop temperature and pressure control, thereby achieving stable membrane delivery and precise lamination.
It improves the stability and efficiency of membrane material processing, realizes fully automated continuous production, reduces manual intervention, and improves printing accuracy and product quality, making it suitable for high-precision UV printing scenarios.
Smart Images
Figure CN224677457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of UV printer technology, specifically to a UV printer film feeding mechanism. Background Technology
[0002] In existing UV printing technologies, the film feeding process often faces problems such as film feed deviation, poor synchronization, and easy deviation of the printed film, which seriously affect printing accuracy and finished product quality. Traditional equipment often cannot effectively integrate processes such as unwinding, separation, printing, lamination, and rewinding, resulting in uncoordinated tension control, unstable paths, and even film wrinkles, tears, or accumulation. Especially in high-speed continuous printing scenarios, the deviation of the film due to inertia or tension fluctuations is difficult to suppress, and the lack of linkage control between waste film and finished film rewinding further exacerbates system instability. In addition, inaccurate temperature, pressure, or alignment during the lamination process can also easily lead to poor lamination. Therefore, there is an urgent need for a compact, tension-controllable, path-precise, and fully automated UV printer film feeding mechanism to solve the technical bottleneck of the inability to integrate film feeding, lamination, and rewinding. Utility Model Content
[0003] To solve the above problems, this utility model provides a UV printer film feeding mechanism, comprising: frame; The unwinding module includes a passive unwinding device, which is mounted on the frame via a first bearing seat, and a first damping adjustment component is connected to the first idler roller shaft of the passive unwinding device. The separation module is located downstream of the unwinding module. It includes a first guide roller and a film separating plate. The first guide roller is mounted on the frame via a first air bearing, and the film separating plate is fixedly mounted on the frame and located downstream of the first guide roller. The waste film winding module is located on one side of the separation module. It includes a first driving device and a waste film winding shaft. The first driving device drives the waste film winding shaft to rotate for winding up the waste film separated by the film separating plate. The printing module, located downstream of the separation module, is used to receive the printing film separated by the separation plate. It includes a porous printing platform and a negative pressure adsorption device. The negative pressure adsorption device is connected to the chamber of the porous printing platform through an air duct, thereby forming a negative pressure adsorption zone on the upper surface of the porous printing platform. The composite module, located downstream of the printing module, includes a coating unwinding device, a guiding tensioning device, and a heating and pressing device. The coating unwinding device is mounted on the frame via a second bearing seat, and a second damping adjustment component is connected to the second idler roller shaft of the coating unwinding device. The guiding tensioning device includes a second guide roller, which is mounted on the frame via a second air bearing. The heating and pressing device includes a second drive device, a hot press roller, a driven press roller, and a pressure applying component. The second drive device drives the hot press roller to rotate, and the axes of the hot press roller and the driven press roller are parallel to each other and cooperate with each other. The pressure applying component applies pressure to the driven press roller. The finished product winding module is located downstream of the composite module. It includes a third drive device and a finished product winding shaft. The third drive device drives the finished product winding shaft to rotate and wind up the composite finished film.
[0004] Preferably, the film separating plate has a peeling edge that extends parallel to the axis of the first guide roller and points to the film path from the unwinding module, so that the film is separated into printing film and waste film when passing through the film separating plate.
[0005] Preferably, the axes of the first guide roller, the second guide roller, the first idler roller shaft, and the second idler roller shaft are all parallel to the PB direction, and the first air bearing, the second air bearing, the first bearing housing, and the second bearing housing provide radial support to the first guide roller, the second guide roller, the first idler roller shaft, and the second idler roller shaft, respectively.
[0006] Preferably, the pressure element acts on the bearing seat of the driven pressure roller, driving the driven pressure roller to move linearly toward the hot pressure roller to form a pressing zone.
[0007] Preferably, the pressurizing component is a pneumatic cylinder, and the pneumatic cylinder is connected to a proportional valve for precise pressure control.
[0008] Preferably, the hot press roller is equipped with an electric heating element inside, and the surface of the driven press roller is covered with a high-temperature resistant elastic layer.
[0009] Preferably, the electric heating element is an electric heating tube or an electric heating wire. The hot press roller is equipped with a temperature sensor for real-time monitoring of the roller surface temperature. The temperature sensor is connected to an external temperature controller, and the temperature controller is electrically connected to the electric heating element.
[0010] Preferably, the coating unwinding device is located on one side of the printing platform. The coating material output by the device changes direction after being changed by the second guide roller, and enters the pressing area of the heating and pressing device together with the printing film output from the printing platform.
[0011] Preferably, the waste material winding module and the finished product winding module are located on both sides of the frame.
[0012] Preferably, the first damping adjustment component and the second damping adjustment component are friction dampers.
[0013] The beneficial effects are as follows: This application significantly improves the stability and efficiency of film material processing through modular integration and optimized design. The unwinding module combines a damping adjustment component with an air bearing to achieve precise control of film tension and frictionless guidance, preventing deviation from the source. The separation module uses a film separating plate peeling edge and an air bearing guide roller to smoothly separate the printed film from the waste film, avoiding tearing. The printing module uses negative pressure adsorption to fix the film material, ensuring printing accuracy. The composite module integrates a heating and pressing device, achieving a firm composite of the coated and printed films through closed-loop temperature and pressure control and synchronous drive, with damage-free winding. The overall mechanism integrates unwinding, separation, printing, coating, and winding into one unit, realizing fully automated continuous production, reducing manual intervention, and improving operational consistency. The optimized layout of the film material path and the collaborative work of each module effectively solve the problems of film feeding deviation, poor synchronization, and inability to complete the process in an integrated manner in traditional equipment. It is suitable for high-precision UV printing scenarios, improving production efficiency and product quality. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this application from a first angle; Figure 2 This is a schematic diagram of the overall structure from a second perspective of this application; In the picture: 1. Rack; 2. Unwinding module; 21. Passive unwinding device; 211. First idler roller shaft; 212. First damping adjustment assembly; 3. Separation module; 31. First guide roller; 32. Film separating plate; 4. Waste film winding module; 41. First drive device; 42. Waste film winding shaft; 5. Printing module; 51. Multi-hole printing platform; 52. Negative pressure adsorption device; 6. Composite module; 61. Coating unwinding device; 611. Second idler roller shaft; 612. Second damping adjustment assembly; 62. Guide tensioning device; 621. Second guide roller; 622. Second air bearing; 63. Heating and pressing device; 631. Second drive device; 632. Hot press roller; 633. Driven press roller; 7. Finished product winding module; 71. Third drive device; 72. Finished product winding shaft. Detailed Implementation
[0015] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0016] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.
[0017] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0018] Example Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall structure of this application from a first angle. Figure 2 This is a schematic diagram of the overall structure from a second angle of this application. This embodiment provides a UV printer film feeding mechanism, including a frame 1 and an unwinding module 2, a separating module 3, a waste film winding module 4, a printing module 5, a laminating module 6, and a finished product winding module 7 disposed on the frame 1. The separating module 3 is disposed downstream of the unwinding module 2, the waste film winding module 4 is disposed on one side of the separating module 3, the printing module 5 is disposed downstream of the separating module 3 to receive the printing film separated by the film separating plate 32, the laminating module 6 is disposed downstream of the printing module 5, and the finished product winding module 7 is disposed downstream of the laminating module 6.
[0019] See also Figure 1To facilitate understanding of this embodiment, a direction axis is established, with PA as the first direction, PB as the second direction, and PC as the third direction. The first, second, and third directions are perpendicular to each other. The first and second directions are parallel to the bottom surface of the frame 1, and the third direction is perpendicular to the bottom surface of the frame 1.
[0020] See also Figure 1 The unwinding module 2 is fixed below one side of the frame 1 and includes a passive unwinding device 21. The passive unwinding device 21 includes a first idler roller shaft 211 extending along the PB direction. The first idler roller shaft 211 is mounted on the frame 1 through a first bearing seat. The first bearing seat is a mounted spherical bearing, which is fastened to the side plate of the frame 1 by bolts to provide radial support for the first idler roller shaft 211, allowing the first idler roller shaft 211 to rotate freely around its own axis. The film material is sleeved on the outer periphery of the first idler roller shaft 211, and passive unwinding is achieved with the rotation of the first idler roller shaft 211. The first damping adjustment component 212 is connected to the first idler roller shaft 211 via a drive connection. Specifically, the first damping adjustment component 212 is circumferentially fixed by engaging with the keyway at the left or right end of the first idler roller shaft 211 via a flat key, and the housing of the first damping adjustment component 212 is fixed to the frame 1 via a flange structure. The first damping adjustment component 212 is a friction damper, including a friction disc and a spring clamping mechanism. The spring clamping mechanism can apply adjustable axial pressure and act directly on the friction disc. By changing the magnitude of the axial pressure, the friction force between the friction discs is adjusted, thereby causing the friction damper to generate a controllable friction damping torque and act on the first idler roller shaft 211. This controllable friction damping torque counteracts the inertial rotation tendency of the first idler roller shaft 211 during the unwinding process, preventing the film material from loosening or shifting due to inertia, achieving stable control of the unwinding tension of the film material, and reducing the risk of film deviation from the source.
[0021] See also Figure 1The separation module 3 and the unwinding module 2 are located on the same side of the frame 1 along the film conveying direction, with the separation module 3 situated at the top of the frame 1. The separation module 3 includes a first guide roller 31 and a film separating plate 32. The first guide roller 31 extends along the PB direction and is mounted on the frame 1 via a first air bearing. The first air bearing is an air bearing, and its base is fastened to the frame 1 with bolts. During installation, the axis of the first guide roller 31 is ensured to be parallel to the PB direction, providing non-contact radial support for the first guide roller 31. The first air bearing is connected to an external air source via an air pipe, utilizing the air film to achieve frictionless relative rotation between the guide roller and the bearing. With the help of a preset adjustment mechanism such as an eccentric mounting seat, the horizontal position of the first guide roller 31 can be finely adjusted, thereby compensating for the lateral offset of the film. At the same time, the frictionless support characteristic can prevent the guide roller from generating additional friction on the film, ensuring the stability of the film conveying process. The film separating plate 32 is located downstream of the film material on the first guide roller 31 and is fixed to the frame 1 by a bracket with adjustable height and horizontal position. The film separating plate 32 is provided with a peeling blade, the extension direction of which is parallel to the axis of the first guide roller 31, and the peeling blade forms a preset acute angle of 30° to 60° with the film material conveying path, with the blade facing the film material from the unwinding module 2. After being guided by the first guide roller 31, the film material contacts the peeling blade of the film separating plate 32 along the preset path. Through the wedge-shaped separation action of the blade, the film material is separated into printing film and waste film when passing through the film separating plate 32. In this separation module 3, the first air bearing can reduce the film material conveying resistance, allowing the first guide roller 31 to fine-tune its position and compensate for film material offset. The peeling blade of the film separating plate 32 accurately separates the film material into printing film and waste film, the separation process is smooth, and the film material is prevented from tearing or wrinkling. By positioning the guide roller and the film separating plate 32 with parallel axes and optimizing the path angle, the alignment of the film material conveying path is ensured, further reducing lateral offset.
[0022] See also Figure 1The waste film winding module 4 and the unwinding module 2 are set on the same side of the frame 1 along the film conveying direction, and the height of the waste film winding module 4 along the PC direction is between the separation module 3 and the unwinding module 2. The waste film winding module 4 includes a first drive device 41 and a waste film winding shaft 42. The first drive device 41 is a servo motor, and its output shaft is connected to one end of the waste film winding shaft 42 through a flexible coupling. It is used to drive the waste film winding shaft 42 to rotate around its own axis to wind up the waste film separated by the film separating plate 32. The waste film winding shaft 42 is assembled on the frame 1 through a seated outer spherical bearing. The base of the seated outer spherical bearing is fastened by bolts. After installation, it is ensured that the axis of the waste film winding shaft 42 is parallel to the PB direction and is coplanar with the axis of the first idler roller shaft 211 and the first guide roller 31 to ensure that the waste film conveying path is aligned. The outer periphery of the waste film winding shaft 42 is provided with a tensioning structure such as a tensioning sleeve to fix the starting end of the waste film and realize reliable winding of the waste film. The first drive unit 41 provides a controllable winding speed and winding torque. Its winding parameters are adapted to the tension requirements of the waste film conveying path. By forming a tension balance with the first damping adjustment component 212 of the unwinding module 2 and the conveying resistance of the waste film itself, it maintains a constant tension during the waste film winding process. This design can effectively avoid excessive tension of the waste film due to excessive winding speed or accumulation and entanglement due to excessive winding speed, thereby preventing tension fluctuations of the waste film from being transmitted to the printing film, ensuring the conveying stability of the printing film, and reducing lateral deviation.
[0023] See also Figure 1 The printing module 5, located at the top of the frame 1, includes a porous printing platform 51 and a negative pressure adsorption device 52, used to receive the printing film separated by the separating plate 32. The porous printing platform 51 is a rectangular plate structure with uniformly distributed micropores on its surface and a sealed chamber inside. The negative pressure adsorption device 52 includes a vacuum pump and an air duct. The air duct is a flexible pipe connecting the vacuum pump and the chamber of the porous printing platform 51, creating a negative pressure adsorption zone on the upper surface of the porous printing platform 51. Negative pressure adsorption tightly fixes the printing film to the porous printing platform 51, preventing film movement or warping during printing and ensuring printing accuracy.
[0024] See also Figure 2 The composite module 6 is located on the top of the frame 1 and is on the other side of the printing module 5 relative to the separation module 3 along the PA direction. The composite module 6 includes a film unwinding device 61, a guide tensioning device 62 and a heating and pressing device 63.
[0025] The coating unwinding device 61 is located on the other side of the printing module 5 relative to the separation module 3 along the PA direction. It includes a second idler roller shaft 611 extending along the PB direction. The second idler roller shaft 611 is mounted on the frame 1 through a second bearing seat. The second bearing seat is a seated outer spherical bearing with the same structure as the first bearing seat. Its base is fastened to the side plate of the frame 1 by bolts, providing radial support for the second idler roller shaft 611, so that the second idler roller shaft 611 can rotate freely around its own axis. The coating material is sleeved on the outer circumference of the second idler roller shaft 611 and is passively unwound as the second idler roller shaft 611 rotates. The left or right end of the second idler roller 611 is connected to the second damping adjustment assembly 612 via a flat key. The housing of the second damping adjustment assembly 612 is fixed to the frame 1 via a flange. The second damping adjustment assembly 612 is also a friction damper with the same structure as the first damping adjustment assembly 212. An adjustable axial pressure is applied through a spring clamping mechanism to generate a controllable friction damping torque that acts on the second idler roller 611, thereby achieving stable control of the film unwinding tension.
[0026] The guiding tensioning device 62 includes a second guide roller 621, which extends along the PB direction and is mounted on the frame 1 via a second air bearing 622. The second air bearing 622 is an air bearing, and its base is fixed to the frame 1 with bolts. After installation, it ensures that the axis of the second guide roller 621 is parallel to the PB direction. The second air bearing 622 is connected to an external air source through an air pipe, using an air film to achieve frictionless rotation of the second guide roller 621. Simultaneously, its self-adjusting characteristics compensate for minor lateral offsets in the coating process, ensuring precise coating conveying path. The coating material output from the second idler roller 611, after being guided and having its conveying direction changed by the second guide roller 621, forms a parallel alignment with the printing film output from the printing platform, and simultaneously enters the pressing area of the heating and pressing device 63. The frictionless characteristics of the second air bearing 622 prevent additional disturbance to the coating tension, and together with the second damping adjustment component 612, ensure tension stability and path precision during the coating conveying process.
[0027] The heating and pressing device 63 includes a second drive device 631, a hot pressing roller 632, a driven pressing roller 633, and a pressing component. The second drive device 631 is a servo motor, whose output shaft is connected to one end of the hot pressing roller 632 via a gear set, driving the hot pressing roller 632 to rotate around its own axis. The gear set ensures that the hot pressing roller 632 outputs stable torque and speed, and the rotation direction of the hot pressing roller 632 is opposite to that of the driven pressing roller 633, achieving synchronous conveying of the two film materials. The axes of the hot pressing roller 632 and the driven pressing roller 633 are both parallel along the PB direction, and the axes of the two rollers are coplanar, with the roller surfaces relatively touching to form a pressing area. The hot pressing roller 632 is internally equipped with an electric heating element such as an electric heating tube or an electric heating wire, and is equipped with a temperature sensor such as a thermocouple. The temperature sensor is signal-connected to an external temperature controller, and the temperature controller is electrically connected to the electric heating element, forming a closed-loop temperature control to monitor and regulate the roller surface temperature of the hot pressing roller 632 in real time. The driven pressure roller 633 is mounted on the guide rail of the frame 1 at both ends via sliding bearing seats. The pressure-applying component is a pneumatic cylinder, the cylinder body of which is fixed to the frame 1. The output end of the piston rod is rigidly connected to the sliding bearing seat of the driven pressure roller 633. The pneumatic cylinder is connected to a proportional valve for precisely adjusting the output pressure of the pneumatic cylinder, thereby controlling the pressing pressure between the driven pressure roller 633 and the hot pressure roller 632. The surface of the driven pressure roller 633 is covered with a high-temperature resistant elastic layer such as silicone. This elastic layer can buffer the pressing impact force, increase the bonding area of the two films, and prevent the films from being damaged due to excessive compression. This composite module 6 uses the second damping adjustment component 612 and the second air bearing 622 to control the coating tension and conveying path in a coordinated manner. Through the temperature closed-loop control, pressure closed-loop control and speed synchronization control of the heating and pressing device 63, it ensures that the coating and printing film achieve stable bonding with temperature matching, pressure uniformity and conveying synchronization in the pressing zone, which not only ensures the coating firmness, but also avoids overheating damage, stretching or wrinkling of the film material.
[0028] See also Figure 2 The finished product winding module 7 is fixed below the waste material winding module 4 on the opposite side of the frame 1. That is, the waste material winding module 4 and the finished product winding module 7 are located on opposite sides of the frame 1. This layout optimizes space utilization and avoids intersections between the film material and the laminating material paths. The finished product winding module 7 includes a third drive device 71 and a finished product winding shaft 72. The third drive device 71 is a servo motor that drives the finished product winding shaft 72 to rotate via a sprocket, thereby winding the laminated finished film. The finished product winding shaft 72 is mounted on the frame 1 via a bearing with a mounting seat, and its axis is parallel to the PB direction. The third drive device 71 provides a stable winding force, working in conjunction with the preceding modules to maintain overall film tension balance and prevent the finished film from loosening or shifting. The finished product is obtained directly after winding, reducing subsequent processing.
[0029] During operation, the film material is released from the unwinding module 2, guided by the first guide roller 31, and then separated into printing film and waste film by the film separating plate 32. The waste film is wound up by the waste material winding module 4, while the printing film enters the printing module 5, where it is fixed by negative pressure and printed. After printing, the printing film and the coating material output from the coating unwinding device 61 are combined under the guidance of the guiding tensioning device 62, and then pressed together by the heating and pressing device 63. Finally, it is wound up by the finished product winding module 7.
[0030] As can be seen from the above, this mechanism, through modular integration and optimized design, can significantly improve the stability and efficiency of film material processing. The unwinding module 2, combining a damping adjustment component with an air bearing, achieves precise control of film tension and frictionless guidance, preventing deviation from the source. The separation module 3 utilizes the separating plate 32, peeling edge, and air bearing guide roller to smoothly separate the printed film from the waste film, avoiding tearing. The printing module 5 uses negative pressure adsorption to fix the film material, ensuring printing accuracy. The laminating module 6 integrates a heating and pressing device 63, achieving a firm lamination of the coated and printed films through closed-loop temperature and pressure control and synchronous drive, with damage-free winding. The overall mechanism integrates unwinding, separation, printing, coating, and winding into one unit, enabling fully automated continuous production, reducing manual intervention, and improving operational consistency. The optimized film path layout and collaborative work of each module effectively solve the problems of film feeding deviation, poor synchronization, and inability to complete tasks in an integrated manner in traditional equipment. It is suitable for high-precision UV printing scenarios, improving production efficiency and product quality.
[0031] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A film feeding mechanism for a UV printer, characterized in that, include: frame; An unwinding module includes a passive unwinding device, which is mounted on the frame via a first bearing seat, and a first damping adjustment component is connected to the first idler roller shaft of the passive unwinding device. A separation module is located downstream of the unwinding module. It includes a first guide roller and a film separating plate. The first guide roller is mounted on the frame via a first air bearing. The film separating plate is fixedly mounted on the frame and located downstream of the first guide roller. A waste film winding module is disposed on one side of the separation module. It includes a first driving device and a waste film winding shaft. The first driving device drives the waste film winding shaft to rotate for winding up the waste film separated by the film separating plate. A printing module, located downstream of the separation module, is used to receive the printing film separated by the separation plate. It includes a porous printing platform and a negative pressure adsorption device. The negative pressure adsorption device is connected to the chamber of the porous printing platform through an air duct, thereby forming a negative pressure adsorption zone on the upper surface of the porous printing platform. A composite module, located downstream of the printing module, includes a coating unwinding device, a guiding tensioning device, and a heating and pressing device. The coating unwinding device is mounted on the frame via a second bearing seat, and a second damping adjustment component is connected to the second idler roller shaft of the coating unwinding device. The guiding tensioning device includes a second guide roller, which is mounted on the frame via a second air bearing. The heating and pressing device includes a second drive device, a hot press roller, a driven press roller, and a pressure applying component. The second drive device drives the hot press roller to rotate, and the axes of the hot press roller and the driven press roller are parallel to each other and cooperate with each other. The pressure applying component applies pressure to the driven press roller. The finished product winding module is located downstream of the composite module. It includes a third drive device and a finished product winding shaft. The third drive device drives the finished product winding shaft to rotate to wind up the composite finished film.
2. The UV printer film feeding mechanism according to claim 1, characterized in that, The film separating plate has a peeling blade that extends parallel to the axis of the first guide roller and points to the film path from the unwinding module, so that the film is separated into printing film and waste film when it passes through the film separating plate.
3. The UV printer film feeding mechanism according to claim 1, characterized in that, The axes of the first guide roller, the second guide roller, the first idler roller shaft, and the second idler roller shaft are all parallel to the PB direction, and the first air bearing, the second air bearing, the first bearing housing, and the second bearing housing provide radial support to the first guide roller, the second guide roller, the first idler roller shaft, and the second idler roller shaft, respectively.
4. The UV printer film feeding mechanism according to claim 1, characterized in that, The pressure element acts on the bearing seat of the driven pressure roller, driving the driven pressure roller to move linearly toward the hot pressure roller to form a pressing zone.
5. The UV printer film feeding mechanism according to claim 4, characterized in that, The pressurizing component is a pneumatic cylinder, and the pneumatic cylinder is connected to a proportional valve for precise pressure control via its air circuit.
6. The UV printer film feeding mechanism according to claim 1, characterized in that, The hot press roller is equipped with an electric heating element inside, and the surface of the driven press roller is covered with a high-temperature resistant elastic layer.
7. The UV printer film feeding mechanism according to claim 6, characterized in that, The electric heating element is an electric heating tube or an electric heating wire. The hot press roller is equipped with a temperature sensor for real-time monitoring of the roller surface temperature. The temperature sensor is connected to an external temperature controller, and the temperature controller is electrically connected to the electric heating element.
8. The UV printer film feeding mechanism according to claim 1, characterized in that, The coating unwinding device is located on one side of the printing platform. The coating material output by the device changes direction after being changed by the second guide roller, and enters the pressing area of the heating and pressing device together with the printing film output from the printing platform.
9. The UV printer film feeding mechanism according to claim 1, characterized in that, The waste material winding module and the finished product winding module are located on both sides of the frame, respectively.
10. The UV printer film feeding mechanism according to claim 1, characterized in that, The first damping adjustment component and the second damping adjustment component are friction dampers.