Polymer decorative film forming equipment with tension self-regulating equipment

Abstract

The invention relates to macromolecular decorative film forming equipment with tension self-regulating equipment, which is applied to the technical field of macromolecular decorative film forming, and comprises a macromolecular decorative film forming assembly and a self-regulating winding device for winding a decorative film, and the self-regulating winding device comprises a roller and two fixed side plates; a roller diameter measuring mechanism is installed on the fixed side plate, the roller is connected with a driving piece, and a rolling intelligent controller is installed on the outer wall of the fixed side plate. The cylinder diameter measuring mechanism comprises a measuring rotating shaft and a measuring cylinder, the bottom of the pressure base is installed on a first bearing, the first bearing is connected with the measuring rotating shaft, and the pressure base is fixedly connected with a first spring; according to the macromolecular decorative film forming equipment with the tension self-regulating equipment, the tension change of the macromolecular decorative film in the winding process is detected through the self-regulating winding device, the winding speed is automatically controlled, the tension is kept within a certain range, flaws of the macromolecular decorative film are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to a decorative film forming device, in particular to a polymer decorative film forming device with a tension self-regulating device applied in the technical field of polymer decorative film forming. Background Art

[0002] Decorative film is a new type of decorative material made of high molecular polymer (PVC) as raw material, adding various additives, calendering and compounding. It can be compounded with wood, plastic board, aluminum plate, iron plate and other base materials to make multi-purpose decorative materials. It is widely used in household appliances, audio surface decoration, interior decoration, aircraft, ships, train interior decoration, in addition, it can also be used for billboards, etc.

[0003] The patent with publication number CN219839266U discloses a decorative film production tension adjustment device, which includes a base, positioning plates are fixedly installed at both ends of the middle of the upper surface of the base, the inner wall of the lower end of the positioning plate is movably connected with an adjusting rod, and the outer wall of the adjusting rod is symmetrically sleeved with a supporting mechanism; a sleeve plate, the sleeve plate is movably installed on the upper outer wall of the positioning plate, the upper end of the sleeve plate is fixedly connected with a bracket, and the lower inner wall of the bracket is installed with an adjusting roller; a handwheel rod, the handwheel rod is movably installed on the upper inner wall of the bracket, the inner wall of the bracket on the side of the handwheel rod is fixedly connected with a positioning rod, the outer wall of the positioning rod is symmetrically sleeved with a base, and the lower surface of the base is fixedly connected with a limiting sleeve.

[0004] In the above scheme, the decorative film production tension adjustment device is convenient for limiting the decorative film, thereby avoiding displacement of the decorative film when the tension is adjusted, which is beneficial to ensure stable processing of the decorative film. However, it does not take into account that during the production and molding process of the polymer decorative film, there are certain requirements for the winding tension of the decorative film during the winding stage. Too much or too little winding tension may cause defects in the molding of the decorative film. In order to ensure product quality, the defective decorative film will be cut off, which increases the production cost of the decorative film, reduces efficiency, and causes a waste of production resources. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that during the production and molding process of the polymer decorative film, there are certain requirements for the winding tension of the decorative film during the winding stage. Too large or too small winding tension may cause defects in the molding of the decorative film. In order to ensure product quality, the defective decorative film will be cut off, which will increase the production cost of the decorative film, reduce efficiency, and cause a waste of production resources.

[0006] In order to solve the above problems, the present invention provides a polymer decorative film forming device with a tension self-regulating device, including a polymer decorative film forming component and a self-regulating winding device for winding the decorative film, the self-regulating winding device including a fixing mechanism, the fixing mechanism including a roller and two fixed side plates installed at both ends of the roller, the fixed side plates are respectively provided with a through hole one along the radial direction thereof and a through hole two matching the roller, a cylinder diameter measuring mechanism is slidably connected in the through hole one, an output end of a driving member is fixedly connected to one end of the roller, a winding intelligent controller is installed on the outer wall of the fixed side plate, and a torque sensor is arranged in the driving member;

[0007] The cylinder diameter measuring mechanism includes a measuring shaft and a measuring cylinder fixedly installed on the measuring shaft. A sliding groove is opened in the through hole one, and a pressure base is slidably connected in the sliding groove. The bottom of the pressure base is installed on the outer ring of the bearing one, and the inner ring of the bearing one is fixedly connected to the measuring shaft. A spring one is fixedly connected to the top of the pressure base, and the other end of the spring one is fixedly connected to the pressure top plate. A pressure sensor is arranged on the top of the pressure top plate.

[0008] In the above-mentioned polymer decorative film forming equipment with self-regulating tension device, the tension change of the polymer decorative film during the winding process is detected by the self-regulating winding device, and the speed of the self-regulating winding device winding the polymer decorative film is automatically adjusted according to the tension change, so that the tension of the polymer decorative film is always maintained within a constant range, thereby avoiding defects generated during the winding of the polymer decorative film to a great extent, reducing the part cut off due to unqualified quality, improving production efficiency, reducing production costs, and reducing waste of resources.

[0009] As a further improvement of the present application, the winding intelligent controller includes a main control module, an instruction module, and a detection module. The main control module is electrically connected to the instruction module and the detection module, respectively. The instruction module is electrically connected to the driving component, and the detection module is electrically connected to the pressure sensor and the torque sensor, respectively.

[0010] As a further improvement of the present application, the roller includes a driving shaft and a winding drum fixedly mounted on the driving shaft, the driving shaft is mounted on the inner ring of the second bearing, the outer ring of the second bearing is fixedly connected to the inner wall of the second through hole, and the second driving shaft is fixedly connected to the output end of the driving member.

[0011] As a further improvement of the present application, the roller and the cylinder diameter measuring mechanism are both arranged along the radial direction of the fixed side plate, the measuring cylinder and the winding cylinder are fitted together, the measuring cylinder is made of elastic material, and the surfaces of the measuring cylinder and the winding cylinder are both smooth.

[0012] As another improvement of the present application, a winding measuring mechanism is provided on the measuring tube, and the winding measuring mechanism includes a pneumatic rod installed on the outer wall of the measuring tube, the input end of the pneumatic rod is fixedly connected to the winding tube, and a spring 2 is sleeved on the input end of the pneumatic rod.

[0013] As another improved supplement of the present application, a plurality of winding measuring mechanisms are provided, and the plurality of winding measuring mechanisms are evenly distributed along the axial direction of the measuring cylinder, and the winding cylinder is made of elastic material.

[0014] As another improved supplement of the present application, a plurality of pneumatic rods are provided, and the plurality of pneumatic rods are distributed along the circumference of the measuring tube. The pneumatic rods include a pneumatic base and a pneumatic input rod plugged into the pneumatic base. The pneumatic base is fixedly installed on the measuring tube, and the pneumatic input rod is fixedly installed on the winding tube. A pneumatic pressure sensor is provided in the pneumatic base, and the detection module is electrically connected to the pneumatic pressure sensor.

[0015] As another improvement of the present application, a regularizing mechanism is provided on each fixed side panel, which is rotatably connected to the driving shaft. The regularizing mechanism includes a regularizing side panel, which is installed on the output end of the electric push rod. The electric push rod is fixedly installed on the fixed side panel. A through hole three corresponding to through hole one is provided on the regularizing side panel, and through hole three is slidably connected to the measuring shaft. A through hole four corresponding to through hole two is provided on the regularizing side panel, and through hole four is rotatably connected to the driving shaft. The instruction module is electrically connected to the electric push rod.

[0016] As another improvement of the present application, a plurality of electric push rods are provided, and the plurality of electric push rods are distributed circumferentially along the fixed side plate.

[0017] To sum up, in the process of winding the polymer decorative film, the roll diameter data of the wound polymer decorative film roll and the torque data of the roll drum in the current state are obtained through the drum diameter measuring mechanism arranged on the fixed side plate and the torque sensor arranged in the driving member. As the polymer decorative film is wound, the roll diameter of the formed polymer decorative film roll is also increasing. The measuring drum of the drum diameter measuring mechanism rises as the roll diameter of the polymer decorative film increases. The rise of the measuring drum drives the pressure base to rise synchronously. The rise of the pressure base will compress the spring. The pressure sensor arranged on the top of the pressure plate also collects the corresponding pressure data. After calculating the pressure data, the roll diameter data of the polymer decorative film roll at this time can be obtained. The roll diameter data and the torque data are transmitted to the winding intelligent controller. The winding intelligent controller can calculate and obtain the tension information of the polymer decorative film at this time. The rotation speed of the driving member is adjusted according to the tension information, so that the tension of the polymer decorative film is maintained within a certain range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the first and second embodiments of the present application;

[0019] Figure 2 This is a schematic diagram of the structure of the cylinder diameter measuring mechanism of the first and second embodiments of the present application;

[0020] Figure 3Schematic diagram of the drum structure of the first and second embodiments of the present application;

[0021] Figure 4 This is a control principle diagram of the winding intelligent controller of the first embodiment of the present application;

[0022] Figure 5 Schematic diagram of the position of the winding measurement mechanism of the first and second embodiments of the present application;

[0023] Figure 6 This is a schematic diagram of the structure of the winding measurement mechanism of the first and second embodiments of the present application;

[0024] Figure 7 Schematic cross-sectional view of the gas pressure rod structure of the first and second embodiments of the present application;

[0025] Figure 8 This is a schematic diagram of the regular mechanism structure of the first and second implementation modes of the present application;

[0026] Fig. 9 This is a control schematic diagram of the winding intelligent controller according to the second embodiment of the present application.

[0027] Description of the numbers in the figure:

[0028] 1. Fixing mechanism; 101. Fixed side plate; 102. Through hole one; 103. Through hole two; 2. Roller; 201. Winding drum; 202. Driving shaft; 203. Bearing two; 3. Drum diameter measuring mechanism; 301. Measuring drum; 302. Measuring shaft; 303. Bearing one; 304. Pressure base; 305. Spring one; 306. Pressure top plate; 307. Pressure sensor; 4. Driving part; 5. Winding intelligent controller; 6. Winding measuring mechanism; 601. Winding drum; 602. Pneumatic rod; 603. Spring two; 604. Pneumatic base; 605. Pneumatic input rod; 606. Pneumatic sensor; 7. Regularizing mechanism; 701. Regularizing side plate; 702. Through hole three; 703. Through hole four; 704. Electric push rod. DETAILED DESCRIPTION

[0029] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0030] The first implementation method:

[0031] Figure 1-4A polymer decorative film forming device with a tension self-regulating device is shown, including a polymer decorative film forming component and a self-regulating winding device for winding the decorative film, the self-regulating winding device including a fixing mechanism 1, the fixing mechanism 1 including a roller 2 and two fixed side plates 101 installed at both ends of the roller 2, the fixed side plates 101 are respectively provided with a through hole 102 along its radial direction and a through hole 2 103 matching the roller 2, a cylinder diameter measuring mechanism 3 is slidably connected in the through hole 102, one end of the roller 2 is fixedly connected to the output end of the driving member 4, and the roller 2 includes a driving member 4. A dynamic shaft 202 and a winding drum 201 fixedly mounted on the driving shaft 202, the driving shaft 202 is mounted on the inner ring of the second bearing 203, the outer ring of the second bearing 203 is fixedly connected to the inner wall of the second through hole 103, the driving shaft 202 is fixedly connected to the output end of the driving member 4, the driving member 4 drives the driving shaft 202 to rotate, the driving shaft 202 drives the winding drum 201 to rotate, and is used for winding up the polymer decorative film, the second bearing 203 arranged on the driving shaft 202 can reduce the wear of the driving shaft 202, reduce the maintenance frequency, and improve production efficiency.

[0032] A winding intelligent controller 5 is installed on the outer wall of the fixed side panel 101. The winding intelligent controller 5 will be used to collect various sensor data, process and judge the data, and then control the corresponding component actions. A torque sensor is arranged in the driving member 4. The torque sensor is arranged to measure the torque generated by the output end of the driving member 4 and the driving shaft 202 during the winding process of the polymer decorative film. The torque data collected by the torque sensor and the winding diameter data measured by the cylinder diameter measuring mechanism 3 can be calculated to obtain the tension of the polymer decorative film in the current state.

[0033] The polymer decorative film forming component hands over the processed polymer decorative film to the self-regulating winding device for winding. The driving component 4 drives the roller 2 to wind the polymer decorative film onto the roller 2. The winding speed of the polymer decorative film is controlled by the driving component 4. The winding diameter of the polymer decorative film gradually increases with the number of turns of the roller 2. The roller 2 and the drum diameter measuring mechanism 3 are both arranged along the radial direction of the fixed side plate 101. The drum diameter measuring mechanism 3 can measure the winding diameter of the polymer decorative film in the current state.

[0034] The cylinder diameter measuring mechanism 3 includes a measuring shaft 302, a measuring cylinder 301 fixedly mounted on the measuring shaft 302, a sliding groove is provided in the through hole 102, a pressure base 304 is slidably connected in the sliding groove, the bottom of the pressure base 304 is mounted on the outer ring of a bearing 1 303, the inner ring of the bearing 1 303 is fixedly connected to the measuring shaft 302, a spring 1 305 is fixedly connected to the top of the pressure base 304, the other end of the spring 1 305 is fixedly connected to a pressure top plate 306, a pressure sensor 307 is provided on the top of the pressure top plate 306, the measuring cylinder 301 is fitted with the winding cylinder 201, and during the winding process of the polymer decorative film, the measuring cylinder 301 and the winding cylinder 201 are fitted with each other, and the polymer decorative film will be wound when it is wound. The measuring cylinder 301 is lifted up, and the movement of the measuring cylinder 301 drives the measuring shaft 302 to move. The movement of the measuring shaft 302 drives the bearing 1 303 to move. The movement of the bearing 1 303 drives the pressure base 304 to move along the sliding groove. The pressure base 304 moves to compress the spring 1 305. The elastic force of the spring 1 305 is transmitted to the pressure sensor 307 through the pressure top plate 306. The pressure data generated by the pressure sensor 307 will be processed by the winding intelligent controller 5 and converted into the winding diameter of the polymer decorative film. During the winding process, the measuring cylinder 301 will apply a certain pressure to the wound polymer decorative film. In order to avoid damaging the surface of the polymer decorative film, the measuring cylinder 301 is made of elastic material, and the surfaces of the measuring cylinder 301 and the winding cylinder 201 are both smooth.

[0035] The winding intelligent controller 5 includes a main control module, an instruction module, and a detection module. The main control module is electrically connected to the instruction module and the detection module respectively, the instruction module is electrically connected to the driving member 4, and the detection module is electrically connected to the pressure sensor 307 and the torque sensor respectively.

[0036] During the winding process, the polymer decorative film produced by the polymer decorative film forming assembly is fixed to the winding drum 201, and the main control module controls the action of the driving member 4 through the instruction module to drive the winding drum 201 to rotate and wind the polymer decorative film onto the winding drum 201. The measuring tube 301 will be in close contact with the polymer decorative film, and the main control module collects the pressure data of the pressure sensor 307 through the detection module, and compares the pressure data with the pressure curve (the main control module is preset with the corresponding pressure curve of the winding diameter data and the pressure data) to obtain the winding diameter data in the current state, and the main control module collects the torque data of the torque sensor through the detection module, and calculates the torque data with the winding diameter data to obtain the tension data of the polymer decorative film in the current state, and compares the tension data with the specified tension (the main control module is preset with the specified tension in the current state), if the tension data is higher than the specified tension, due to the winding The diameter data cannot be adjusted instantaneously, so the torque data needs to be adjusted. The main control module controls the driver 4 through the instruction module to increase the speed. Under the condition of the same power, the speed is inversely proportional to the torque. The higher the speed, the smaller the torque. After the difference between the tension data and the specified tension is less than a certain error range, the instruction module controls the driver 4 to maintain the current speed to ensure that the tension of the polymer decorative film is within a constant range; if the tension data is lower than the specified tension, the instruction module controls the driver 4 to reduce the speed and increase the tension data. After the difference between the tension data and the specified tension is less than a certain error range, the instruction module controls the driver 4 to maintain the current speed, and the tension of the polymer decorative film is maintained within a certain range, so that the rolled polymer decorative film has high consistency, less defects, and reduces the part of the unqualified quality that is cut off, thereby improving production efficiency, reducing production costs, and reducing waste of resources.

[0037] The second implementation method:

[0038] Figure 5-9A polymer decorative film forming device with a tension self-regulating device is shown. Different from the first embodiment, a winding measuring mechanism 6 is added to the measuring cylinder 301, and the winding measuring mechanism 6 includes a pneumatic rod 602, which is installed on the outer wall of the measuring cylinder 301, and the input end of the pneumatic rod 602 is fixedly connected to the winding cylinder 601. The winding cylinder 601 is made of elastic material, and a spring 603 is sleeved on the input end of the pneumatic rod 602. A plurality of pneumatic rods 602 are provided, and the plurality of pneumatic rods 602 are distributed circumferentially along the measuring cylinder 301. The pneumatic rod 602 includes a pneumatic base 604 and a pneumatic input rod 605 plugged into the pneumatic base 604. The pneumatic base 604 is fixedly installed on the measuring cylinder 301, and the pneumatic input rod 605 is fixedly installed on the winding cylinder 601. A pneumatic sensor 606 is provided in the pneumatic base 604, and the detection module is electrically connected to the pneumatic sensor 606. During the winding process, the winding measuring mechanism 6 is tightly attached to the forming device. The rolled polymer decorative film, the measuring tube 301 and the polymer decorative film generate a certain pressure on the winding measuring mechanism 6. The winding sleeve is made of elastic material and deforms under pressure, driving the pneumatic rod 602 close to the polymer film to move, and the pneumatic input rod 605 moves toward the pneumatic base 604 to compress the gas in the pneumatic base 604. The pneumatic input rod 605 moves and compresses the spring 2 603 at the same time. The pneumatic sensor 606 arranged in the pneumatic base 604 will collect the pneumatic data and send it to the detection module, which forwards it to the main control module. With the rotation of the drum 2, the winding measuring mechanism 6 is driven to rotate in the opposite direction. At this time, the pneumatic rod 602 originally close to the polymer decorative film will gradually move away from the polymer decorative film, and the pressure is reduced. The spring 2 603 is released, and the pneumatic input rod 605 gradually returns to its original position as it moves away from the polymer decorative film, and the other pneumatic rod 602 will move close to the polymer decorative film with the rotation of the winding measuring mechanism 6.

[0039] There are multiple winding measuring mechanisms 6, and the multiple winding measuring mechanisms 6 are evenly distributed along the axial direction of the measuring tube 301, so as to detect the poor winding situation that may occur in the winding process. The poor winding causes the side depressions or protrusions of the rolled polymer decorative film. At this time, in order to ensure the consistency of the polymer decorative film, the irregular polymer decorative film is cut off, resulting in waste of materials. Since the side depressions or protrusions will cause irregularities on the front side of the entire rolled polymer decorative film, multiple winding measuring mechanisms 6 are added to the measuring tube 301 to detect the winding condition of the polymer decorative film.

[0040] A regularizing mechanism 7 is also added to each fixed side plate 101, and the regularizing mechanism 7 is rotatably connected to the driving shaft 202. The regularizing mechanism 7 includes a regularizing side plate 701, and the regularizing side plate 701 is installed on the output end of the electric push rod 704, and the electric push rod 704 is fixedly installed on the fixed side plate 101. A through hole 3 702 corresponding to the through hole 1 102 is opened on the regularizing side plate 701, and the through hole 3 702 is slidably connected to the measuring shaft 302. The regularizing side plate 701 is opened with a through hole 1 03 corresponds to the through hole four 703, the through hole four 703 is rotationally connected to the driving shaft 202, the instruction module is electrically connected to the electric push rod 704, and a plurality of electric push rods 704 are provided, and the plurality of electric push rods 704 are distributed circumferentially along the fixed side plate 101. When the polymer decorative film in the process of winding becomes irregular, the electric push rod 704 is controlled to make the regular side plate 701 move toward the center and push back the protruding part on the side, so that the winding condition of the polymer decorative film is more regular, thereby reducing the waste of resources.

[0041] During the winding process, the main control module collects air pressure data from multiple air pressure sensors 606 through the detection module, and compares the multiple air pressure data with the specified air pressure (the specified air pressure in the current state is preset in the main control module). The front state of the polymer decorative film in the winding can be obtained through the difference between the air pressure data and the specified air pressure. When multiple air pressure data are abnormal, the main control module can analyze the specific adverse conditions of the polymer decorative film in the winding process based on the multiple abnormal air pressure data. For example, if multiple air pressure data show that the polymer decorative film in the winding has side protrusions, the main control module controls the regularity of the side through the instruction module. The electric push rod 704 of the mechanism 7 makes the output end of the electric push rod 704 drive the regular side to approach the side of the polymer decorative film being wound. At the same time, the instruction module controls the driving component 4 to increase the rotation speed, so that the tension of the polymer decorative film is reduced, which is convenient for the regular side plate 701 to be regularized. The regular side plate 701 pushes the side of the polymer decorative film to push the protruding polymer decorative film back. At this time, the instruction module controls the rotation speed of the driving component 4 to return to the initial value, so that the tension returns to a constant range, and the pushed back polymer decorative film is fixed by friction. At this time, the instruction module controls the electric push rod 704, so that the electric push rod 704 drives the regular side plate 701 back to its original position.

[0042] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A polymer decorative film forming device with a tension self-regulating device, comprising a polymer decorative film forming component and a self-regulating winding device for winding the decorative film, characterized in that: The self-regulating winding device comprises a fixing mechanism (1), the fixing mechanism (1) comprises a roller (2) and two fixed side plates (101) mounted at both ends of the roller (2), the fixed side plates (101) are respectively provided with a through hole (102) along the radial direction thereof and a through hole (103) matching the roller (2), a cylinder diameter measuring mechanism (3) is slidably connected in the through hole (102), one end of the roller (2) is fixedly connected to the output end of the driving member (4), a winding intelligent controller (5) is mounted on the outer wall of the fixed side plate (101), and a torque sensor is arranged in the driving member (4); The cylinder diameter measuring mechanism (3) comprises a measuring shaft (302), a measuring cylinder (301) fixedly mounted on the measuring shaft (302), a sliding groove being provided in the through hole (102), a pressure base (304) being slidably connected in the sliding groove, the bottom of the pressure base (304) being mounted on the outer ring of the bearing (303), the inner ring of the bearing (303) being fixedly connected to the measuring shaft (302), a spring (305) being fixedly connected to the top of the pressure base (304), the other end of the spring (305) being fixedly connected to the pressure top plate (306), and a pressure sensor (307) being arranged at the top of the pressure top plate (306).

2. The polymer decorative film forming device with a tension self-regulating device according to claim 1, characterized in that: The winding intelligent controller (5) comprises a main control module, an instruction module and a detection module, wherein the main control module is electrically connected to the instruction module and the detection module respectively, the instruction module is electrically connected to the driving member (4), and the detection module is electrically connected to the pressure sensor (307) and the torque sensor respectively.

3. The polymer decorative film forming device with a tension self-regulating device according to claim 1, characterized in that: The roller (2) comprises a driving shaft (202) and a winding drum (201) fixedly mounted on the driving shaft (202); the driving shaft (202) is mounted on the inner ring of a second bearing (203); the outer ring of the second bearing (203) is fixedly connected to the inner wall of the second through hole (103); and the second driving shaft (202) is fixedly connected to the output end of the driving member (4).

4. The polymer decorative film forming device with a tension self-regulating device according to claim 3, characterized in that: The roller (2) and the cylinder diameter measuring mechanism (3) are both arranged along the radial direction of the fixed side plate (101); the measuring cylinder (301) and the winding cylinder (201) are fitted with each other; the measuring cylinder (301) is made of elastic material; and the surfaces of the measuring cylinder (301) and the winding cylinder (201) are both smooth.

5. The polymer decorative film forming device with a tension self-regulating device according to claim 2, characterized in that: The measuring tube (301) is provided with a winding measuring mechanism (6), and the winding measuring mechanism (6) comprises a pneumatic rod (602), and the pneumatic rod (602) is installed on the outer wall of the measuring tube (301), the input end of the pneumatic rod (602) is fixedly connected to the winding tube (601), and the input end of the pneumatic rod (602) is sleeved with a spring 2 (603).

6. The polymer decorative film forming device with a tension self-regulating device according to claim 5, characterized in that: A plurality of the winding measurement mechanisms (6) are provided, and the plurality of the winding measurement mechanisms (6) are evenly distributed along the axial direction of the measuring cylinder (301), and the winding cylinder (601) is made of elastic material.

7. The polymer decorative film forming device with a tension self-regulating device according to claim 6, characterized in that: There are multiple pneumatic rods (602), which are distributed circumferentially along the measuring tube (301). The pneumatic rod (602) includes a pneumatic base (604) and a pneumatic input rod (605) plugged into the pneumatic base (604). The pneumatic base (604) is fixedly installed on the measuring tube (301), and the pneumatic input rod (605) is fixedly installed on the winding tube (601). A pneumatic sensor (606) is arranged in the pneumatic base (604), and the detection module is electrically connected to the pneumatic sensor (606).

8. The polymer decorative film forming device with a tension self-regulating device according to claim 2, characterized in that: Each of the fixed side plates (101) is provided with a regularizing mechanism (7), and the regularizing mechanism (7) is rotatably connected to the driving shaft (202). The regularizing mechanism (7) includes a regularizing side plate (701), and the regularizing side plate (701) is installed on the output end of the electric push rod (704). The electric push rod (704) is fixedly installed on the fixed side plate (101). A through hole three (702) corresponding to the through hole one (102) is opened on the regularizing side plate (701), and the through hole three (702) is slidably connected to the measuring shaft (302). A through hole four (703) corresponding to the through hole two (103) is opened on the regularizing side plate (701), and the through hole four (703) is rotatably connected to the driving shaft (202). The instruction module is electrically connected to the electric push rod (704).

9. The polymer decorative film forming device with a tension self-regulating device according to claim 8, characterized in that: A plurality of the electric push rods (704) are provided, and the plurality of the electric push rods (704) are distributed along the circumference of the fixed side plate (101).

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