Matt film preparation winding device

Abstract

The utility model relates to the technical field of matt film preparation, in particular to a matt film preparation winding device which comprises a supporting frame, a reel assembly, a tension adjusting mechanism, a film pressing assembly and a control system. The supporting frame forms a stable structure through stand columns and cross beams. The reel assembly is used for reeling the light removing film; the tension adjusting mechanism dynamically adjusts the rotating speed of a driving motor through a tension sensor to maintain tension stability; the film pressing assembly is used for flattening the film surface by using a flexible material pressing roller; and the control system realizes intelligent operation. The tension can be adjusted in real time, the film surface quality is improved, manual intervention is reduced, the production efficiency and adaptability are remarkably improved, and the requirements for high precision and automation are met.

Description

Technical Field

[0001] This utility model belongs to the technical field of thin film processing equipment, specifically a matte film preparation and winding device. Background Technology

[0002] When preparing and winding matte film, a corresponding winding device is required. The winding device winds the matte film at a specific tension and speed to meet subsequent processing or storage needs. However, existing winding devices typically use fixed tension adjustment mechanisms in practical applications, which are difficult to adapt to matte film materials of different thicknesses and widths. This leads to problems such as uneven tension, film wrinkles, or loosening during the winding process, affecting the quality of the final product. Furthermore, traditional winding devices have a low degree of automation, complex operating procedures, and limited production efficiency.

[0003] A search revealed a polypropylene film and its preparation method, along with a thermally composited sheet, with publication number CN114193882B, published on July 15, 2022. This design, through a two-layer thermally composite structure, improves the smoothness of film roll winding and unwinding, and enhances the overall uniformity of matte finish and peel strength. However, this patent primarily focuses on the structural optimization of the film material itself, without addressing the specific design of the winding device. Therefore, in practical applications, if a traditional winding device is used, problems such as film surface damage or uneven winding due to improper tension control may still occur.

[0004] A search revealed a matte self-adhesive surface protective film and its manufacturing method, with publication number CN105966025B, published on January 2, 2018. This patent proposes a matte protective film comprising a self-adhesive layer, an intermediate layer, and an anti-adhesive layer, and its manufacturing method, which effectively reduces crystal points and improves self-adhesive properties. However, this patent also focuses on improving material formulation and production processes, without delving into issues such as maintaining film surface flatness and avoiding wrinkles or loosening during the winding process. Furthermore, its winding step relies on traditional edge-trimming winding technology, which may not meet the demands of modern industry for high-precision, automated winding devices.

[0005] The aforementioned problems indicate that traditional winding devices currently on the market have certain limitations in meeting the higher requirements for tension control, film surface flatness, and automation in the preparation of high-performance matte films. Therefore, this invention provides an intelligent, automatically tension-adjustable matte film preparation winding device to overcome the shortcomings of the prior art and provide a more intelligent, efficient, and adaptable new solution for changing environments. Utility Model Content

[0006] This invention provides a matte film preparation and winding device, aiming to address the shortcomings of existing winding devices mentioned in the background art in terms of tension control, film surface flatness, and automation. To solve these problems, this invention is implemented as follows: A matte film preparation and winding device includes: a support frame fixedly mounted on a base; a roll assembly disposed on the support frame for winding the matte film; a tension adjusting mechanism mounted on the support frame for dynamically adjusting the tension of the matte film; a film pressing assembly disposed on the support frame for flattening the surface of the matte film; and a control system mounted on the support frame for intelligently controlling the winding process.

[0007] The support frame includes two symmetrically arranged columns connected by a crossbeam to form a stable rectangular frame structure. The bottom of each column is bolted to a base to ensure the overall structural stability. A groove is provided in the middle of the crossbeam for installing and adjusting the position of the tension adjustment mechanism.

[0008] The reel assembly includes a main shaft rotatably mounted on the support frame. One end of the main shaft is connected to one of the columns via a bearing, and the other end passes through another column and is connected to the output shaft of a drive motor via a coupling. A detachable drum is fitted on the outside of the main shaft. Both ends of the drum are fixedly connected to the main shaft by snap fasteners, facilitating the replacement of drums of different specifications to accommodate matte film materials of different widths.

[0009] The tension adjustment mechanism includes a slider slidably mounted within a groove in the crossbeam. The bottom of the slider is connected to an adjusting screw via a threaded hole. One end of the adjusting screw passes through the crossbeam and is manually adjusted via a handwheel. A tension sensor is fixedly mounted on the top of the slider. The sensing end of the tension sensor contacts the matte film to monitor changes in the tension of the matte film in real time. The signal output end of the tension sensor is connected to a control system, which automatically adjusts the speed of the drive motor based on the feedback signal, thereby achieving dynamic tension adjustment.

[0010] The film pressing assembly includes a guide rod fixedly mounted on the support frame, with both ends of the guide rod connected to the column by bolts. A pressure roller bracket is slidably mounted on the middle of the guide rod, and a pressure roller is mounted on the bottom of the pressure roller bracket via a rotating shaft. The outer surface of the pressure roller is covered with a flexible material for smoothing the surface of the matte film. The top of the pressure roller bracket is connected to the guide rod by a spring, and the spring force can be adjusted as needed using an adjusting nut, thereby changing the pressure of the pressure roller on the matte film.

[0011] The control system includes a control box fixedly installed on one side of the support frame, which houses a controller and a power module. The controller's input terminals are connected to a tension sensor and a drive motor, respectively, and its output terminal is connected to the control circuit of the drive motor. The controller calculates the current tension value based on the feedback signal from the tension sensor and compares it with a preset target tension value. It then adjusts the speed of the drive motor to maintain stable tension.

[0012] The top of the support frame is also equipped with a protective cover, which is connected to the crossbeam via hinges to protect the internal components from external dust and foreign objects. Observation windows are provided on both sides of the protective cover to facilitate real-time monitoring of the winding process by the operator.

[0013] Compared with existing technologies, the matte film preparation and winding device provided in this solution has the following characteristics: Through the dynamic adjustment function of the tension regulating mechanism, the speed of the drive motor can be adjusted in real time according to the actual tension changes of the matte film, thereby avoiding film wrinkles or loosening caused by uneven tension. The design of the film pressing assembly uses flexible material pressure rollers to smooth the surface of the matte film, further improving the quality of the film surface. In addition, the control system realizes intelligent operation of the entire winding process, reducing manual intervention and significantly improving production efficiency.

[0014] This invention solves the problem that traditional winding devices are difficult to adapt to matte film materials of different thicknesses and widths through the synergistic effect between various components, while meeting the needs of modern industry for high-precision and automated winding devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the layout relationship of the support frame, the roller assembly, the tension adjustment mechanism, the film pressing assembly and the control system.

[0016] Figure 2 This is a side view of the present invention, which focuses on showing the connection between the reel assembly and the drive motor, as well as the installation position of the tension adjustment mechanism on the crossbeam.

[0017] Figure 3 This is a partial enlarged view of the tension adjustment mechanism, showing in detail the structure and connection relationship of the slider, adjusting screw, handwheel, and tension sensor.

[0018] Figure 4 This is a structural diagram of the film pressing assembly, showing the assembly details of the guide rod, pressure roller bracket, pressure roller, and spring.

[0019] Figure 5 This is a structural diagram of the protective cover, showing the connection between the protective cover and the supporting frame, as well as the location of the observation window.

[0020] The attached figures are labeled as follows:

[0021] 1. Support frame; 2. Column; 3. Crossbeam; 4. Roller assembly; 5. Main shaft; 6. Roller drum; 7. Drive motor; 8. Tension adjustment mechanism; 9. Slider; 10. Adjusting screw; 11. Handwheel; 12. Tension sensor; 13. Film pressing assembly; 14. Guide rod; 15. Pressure roller bracket; 16. Pressure roller; 17. Spring; 18. Control system; 19. Control box; 20. Protective cover; 21. Observation window. Detailed Implementation

[0022] This utility model provides a matte film preparation and winding device, the overall structure of which is as follows: Figure 1 As shown, it includes a support frame 1, a roll assembly 4, a tension adjustment mechanism 8, a film pressing assembly 13, and a control system 18. These components work together through a reasonable layout and connection to achieve efficient winding of the matte film.

[0023] The support frame 1 is the basic structure of the entire device, consisting of two symmetrically arranged columns 2 and a crossbeam 3, forming a stable rectangular frame. The bottom of the columns 2 is fixed to the base with bolts to ensure that the device will not shift or shake during operation. The crossbeam 3 is located between the two columns 2, and its main function is to provide an installation position for the tension adjustment mechanism 8. A groove is opened in the middle of the crossbeam 3 for installing the slider 9 and allowing it to move along the groove. This design allows the tension adjustment mechanism 8 to be flexibly adjusted according to actual needs, thereby accommodating matte film materials of different widths.

[0024] The roll assembly 4 is the core component used to wind up the matte film, and its structure is as follows: Figure 2 As shown. The reel assembly 4 includes a main shaft 5 and a reel 6 sleeved on the outside of the main shaft 5. One end of the main shaft 5 is connected to one of the columns 2 via a bearing, and the other end passes through another column 2 and is connected to the output shaft of the drive motor 7 via a coupling. The speed of the drive motor 7 can be precisely adjusted by the control system 18, thereby controlling the rotational speed of the main shaft 5. Both ends of the reel 6 are fixedly connected to the main shaft 5 by snap-fit ​​fasteners. This detachable design allows users to replace reels 6 of different specifications according to the width of the matte film, enhancing the applicability of the device. In addition, the surface of the reel 6 is specially treated to reduce friction with the matte film and avoid damage to the film surface.

[0025] The tension adjustment mechanism 8 is a key component for achieving dynamic tension control, and its specific structure is as follows: Figure 3As shown. The tension adjustment mechanism 8 includes a slider 9, an adjusting screw 10, a handwheel 11, and a tension sensor 12. The slider 9 is slidably installed in a groove in the crossbeam 3, and its bottom is connected to the adjusting screw 10 through a threaded hole. One end of the adjusting screw 10 passes through the crossbeam 3 and is manually adjusted via the handwheel 11. When the operator rotates the handwheel 11, the adjusting screw 10 drives the slider 9 to move along the groove, thereby changing the position of the tension sensor 12. The tension sensor 12 is fixedly installed on the top of the slider 9, and its detection end contacts the matte film to monitor the tension change of the matte film in real time. The signal output end of the tension sensor 12 is connected to the control system 18 to transmit the detected tension data to the controller. The controller automatically adjusts the speed of the drive motor 7 according to the deviation between the current tension value and the preset target value, thereby realizing dynamic tension adjustment. This design not only improves the accuracy of tension control but also reduces the need for manual intervention.

[0026] The function of the lamination assembly 13 is to smooth the surface of the matte film, and its structure is as follows: Figure 4 As shown, the film pressing assembly 13 includes a guide rod 14, a pressure roller bracket 15, a pressure roller 16, and a spring 17. The two ends of the guide rod 14 are connected to the column 2 by bolts, and its main function is to provide support for the pressure roller bracket 15. The pressure roller bracket 15 is slidably mounted in the middle of the guide rod 14, and the pressure roller 16 is mounted on its bottom via a rotating shaft. The outer surface of the pressure roller 16 is covered with a flexible material with good elasticity and wear resistance, enabling it to apply uniform pressure to the matte film without damaging the film surface. The top of the pressure roller bracket 15 is connected to the guide rod 14 via the spring 17, and the spring force of the spring 17 can be adjusted by an adjusting nut. By changing the spring force of the spring 17, the pressure of the pressure roller 16 on the matte film can be adjusted, thus adapting to matte film materials of different thicknesses. This design not only improves the flatness of the film surface but also enhances the flexibility of the device.

[0027] Control system 18 is the intelligent core of the entire device, and its structure is as follows: Figure 1 As shown. The control system 18 includes a control box 19 fixedly installed on one side of the support frame 1, which houses a controller and a power module. The controller's input terminals are connected to the tension sensor 12 and the drive motor 7, respectively, and its output terminal is connected to the control circuit of the drive motor 7. During operation, the tension sensor 12 transmits the detected tension data to the controller in real time. The controller calculates the required adjustment speed of the drive motor 7 based on the deviation between the current tension value and the preset target value, and precisely adjusts the drive motor 7 through the control circuit. This closed-loop control method can effectively maintain the stability of the matting film tension and avoid film surface quality problems caused by tension fluctuations. In addition, the control system 18 also has a fault alarm function. When an abnormal situation is detected, the controller will immediately stop the operation of the drive motor 7 and issue an alarm to the operator, thereby improving the safety of the device.

[0028] To protect internal components from external dust and foreign objects, a protective cover 20 is installed on the top of the support frame 1, the structure of which is as follows: Figure 5 As shown, the protective cover 20 is connected to the crossbeam 3 via hinges, facilitating easy opening and closing by the operator. Observation windows 21 are provided on both sides of the protective cover 20, allowing the operator to monitor the winding process in real time. This design not only extends the service life of the device but also improves operational convenience.

[0029] In practical applications, the workflow of this device is as follows: First, the matte film to be wound is introduced into the device, passing sequentially through the tension adjustment mechanism 8 and the film pressing assembly 13, and finally reaching the roll assembly 4. After starting the drive motor 7, the main shaft 5 begins to rotate, driving the roll 6 to wind up the matte film. During this process, the tension sensor 12 monitors the tension changes of the matte film in real time and transmits the data to the control system 18. If the tension deviates from the preset range, the controller will automatically adjust the speed of the drive motor 7 to restore the tension to a stable state. At the same time, the pressure roller 16 in the film pressing assembly 13 applies uniform pressure to the surface of the matte film to eliminate wrinkles and ensure winding quality. After one roll of matte film is wound up, the operator can manually adjust the handwheel 11 to change the position of the tension sensor 12 to prepare for the winding of the next roll of matte film.

[0030] This device, through the rational layout and close cooperation of its components, overcomes the shortcomings of traditional winding devices in terms of tension control, film surface flatness, and automation. The support frame 1 provides a stable structural foundation, the roll assembly 4 enables efficient winding, the tension adjustment mechanism 8 ensures dynamic tension stability, the film pressing assembly 13 improves film surface quality, and the control system 18 enables intelligent operation of the entire winding process. The synergistic effect of these components allows this device to adapt to matte film materials of varying thicknesses and widths, meeting the demands of modern industry for high-precision automated winding systems.

[0031] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0032] First, the operator introduces the matte film to be rolled into the device from the outside, allowing it to pass sequentially through the tension adjustment mechanism 8 and the film pressing assembly 13, finally reaching the roll assembly 4. During this process, the support frame 1, fixedly connected to the base via the columns 2, ensures the stability of the entire device, providing a reliable mechanical foundation for subsequent operations. The groove design on the crossbeam 3 allows the tension adjustment mechanism 8 to flexibly adjust its position according to actual needs, thus accommodating matte film materials of different widths, demonstrating the device's compatibility with multiple material specifications.

[0033] Subsequently, after starting the drive motor 7, the main shaft 5 begins to rotate, driving the roll 6 to wind up the matte film. At this time, the tension sensor 12 detects the tension changes of the matte film in real time and transmits the collected data to the controller in the control system 18. Upon receiving the signal, the controller compares it with a preset target tension value. If the current tension deviates from the set range, the controller calculates the required adjustment speed of the drive motor 7 based on the deviation and precisely adjusts the drive motor 7 through the control circuit. This closed-loop control method effectively maintains the stability of the matte film tension, avoiding film surface quality problems caused by tension fluctuations. For example, when the tension sensor 12 detects excessive tension, the controller reduces the speed of the drive motor 7, thereby reducing the rotation speed of the main shaft 5 and restoring the tension to a stable state; conversely, if the tension is too low, the speed of the drive motor 7 is increased to increase the tension. This dynamic adjustment mechanism not only improves the accuracy of tension control but also significantly reduces the need for manual intervention.

[0034] Meanwhile, the pressure roller 16 in the film pressing assembly 13 applies uniform pressure to the surface of the matte film to eliminate wrinkles and ensure winding quality. The guide rod 14 is fixedly connected to the column 2 by bolts at both ends, providing stable support for the pressure roller bracket 15. The pressure roller bracket 15 is slidably mounted in the middle of the guide rod 14, and the pressure roller 16 is mounted at its bottom via a rotating shaft. A flexible material covering the outer surface of the pressure roller 16 applies uniform pressure to the matte film without damaging the film surface. The spring force of the spring 17 can be adjusted by an adjusting nut to accommodate matte film materials of different thicknesses. For example, when handling thicker matte films, the operator can appropriately increase the spring force of the spring 17 to apply greater pressure to the film surface, thus ensuring film flatness; while for thinner matte films, the spring force of the spring 17 can be reduced to avoid damage to the film surface due to excessive pressure. This design not only improves the quality of the film surface but also enhances the flexibility of the device.

[0035] During the winding process, the protective cover 20, connected to the crossbeam 3 via hinges, provides protection for internal components, preventing external dust and foreign objects from entering the device and extending its service life. Simultaneously, the observation windows 21 on both sides of the protective cover 20 allow operators to monitor the winding process in real time, ensuring operational safety and convenience. For example, if operators notice abnormal wrinkles or unstable tension on the film surface, they can quickly locate the problem and adjust relevant parameters promptly through the observation windows 21.

[0036] After one roll of matte film is wound up, the operator can manually rotate handwheel 11 to change the position of tension sensor 12, preparing for the winding of the next roll of matte film. Specifically, rotating handwheel 11 causes adjusting screw 10 to move slider 9 along the groove of crossbeam 3, thereby adjusting the contact position between the detection end of tension sensor 12 and the matte film. This design allows tension adjustment mechanism 8 to flexibly handle matte film materials of different widths, further improving the applicability of the device.

[0037] In summary, this device overcomes the shortcomings of traditional winding devices in terms of tension control, film surface flatness, and automation through the synergistic effect of its components. The support frame 1 provides a stable structural foundation, the roll assembly 4 achieves efficient winding, the tension adjustment mechanism 8 ensures dynamic tension stability, the film pressing assembly 13 improves film surface quality, and the control system 18 significantly enhances production efficiency through intelligent operation. The rational layout and close cooperation of these components enable this device to adapt to matte film materials of varying thicknesses and widths, meeting the demands of modern industry for high-precision automated winding devices.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A matte film preparation and winding device, characterized in that, include: A support frame (1) is fixedly installed on the base; A roll assembly (4) for winding the matte film is mounted on the support frame (1); A tension adjustment mechanism (8) installed on the support frame (1) for dynamically adjusting the tension of the matte film; A pressing assembly (13) for smoothing the surface of the matte film is installed on the support frame (1); And a control system (18) installed on the support frame (1) for controlling the winding process.

2. The matte film preparation and winding apparatus as described in claim 1, characterized in that, The support frame (1) includes two symmetrically arranged columns (2), which are connected by a crossbeam (3) to form a rectangular frame structure. A groove is provided in the middle of the crossbeam (3).

3. The matte film preparation and winding apparatus as described in claim 1, characterized in that, The reel assembly (4) includes a main shaft (5) rotatably mounted on the support frame (1). One end of the main shaft (5) is connected to one of the columns (2) via a bearing, and the other end passes through another column (2) and is connected to the output shaft of the drive motor (7) via a coupling. A detachable reel (6) is sleeved on the outside of the main shaft (5).

4. The matte film preparation and winding apparatus as described in claim 2, characterized in that, The tension adjustment mechanism (8) includes a slider (9) that is slidably installed in the groove of the crossbeam (3). The bottom of the slider (9) is connected to the adjusting screw (10) through a threaded hole. One end of the adjusting screw (10) passes through the crossbeam (3) and is manually adjusted by a handwheel (11). A tension sensor (12) is fixedly installed on the top of the slider (9).

5. The matte film preparation and winding apparatus as described in claim 1, characterized in that, The pressing assembly (13) includes a guide rod (14) fixedly installed on the support frame (1), a pressure roller bracket (15) is slidably installed in the middle of the guide rod (14), a pressure roller (16) is installed at the bottom of the pressure roller bracket (15) through a rotating shaft, and the top of the pressure roller bracket (15) is connected to the guide rod (14) through a spring (17).

6. The matte film preparation and winding apparatus as described in claim 1, characterized in that, The control system (18) includes a control box (19) fixedly installed on one side of the support frame (1). The control box (19) is equipped with a controller and a power module. The input end of the controller is connected to the tension sensor (12) and the drive motor (7) respectively, and the output end of the controller is connected to the control circuit of the drive motor (7).

7. The matte film preparation and winding apparatus as described in claim 1, characterized in that, The top of the support frame (1) is provided with a protective cover (20), which is connected to the crossbeam (3) by a hinge. Observation windows (21) are provided on both sides of the protective cover (20).

8. The matte film preparation and winding apparatus as described in claim 5, characterized in that, The outer surface of the pressure roller (16) is covered with a flexible material, and the elastic force of the spring (17) is adjusted by adjusting the nut.

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