PVC (polyvinyl chloride) film coiling device

Abstract

The utility model discloses a PVC (polyvinyl chloride) film coiling device, which belongs to the field of PVC films, and comprises a U-shaped supporting base, a U-shaped supporting frame is arranged at the top end of the U-shaped supporting base, a coiling roller is arranged in the U-shaped supporting frame, a transverse rotating shaft is fixed in the coiling roller, transverse rotating columns are slidably connected to two ends of the transverse rotating shaft, and two ends of the transverse rotating column are respectively provided with a rotating shaft. A moving mechanism used for moving the two transverse rotating columns is arranged in the U-shaped supporting frame. Clamping mechanisms used for clamping the transverse rotating shaft are arranged at the two ends of the U-shaped supporting frame correspondingly, fixing of the transverse rotating shaft is relieved through the clamping mechanisms, mounting and dismounting of the transverse rotating shaft are facilitated, and when the U-shaped supporting frame is attached to the U-shaped supporting base, the transverse rotating shaft can be stably clamped by the bottom supporting roller and the top clamping roller; shake in the coiling process is effectively reduced, it is ensured that the PVC film is coiled evenly, the product quality is improved, operation is easy and convenient, and the maintenance time and cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of PVC film, more specifically, relate to a PVC film coiling device. BACKGROUND

[0002] In the plastic processing industry, the production and coiling of PVC film is an important link. PVC film is widely used in packaging, construction, medical and other fields, and the performance of the coiling device directly affects the quality and production efficiency of the product in the production process. The existing PVC film coiling device usually includes a base, a rotating shaft, a driving motor and other components. The rotating shaft is used for coiling PVC film, and the driving motor drives the rotating shaft to rotate through a transmission mechanism.

[0003] For example, patent (CN222118330U) discloses a PVC film coiling device, which sets two edge skirts of the film body between the rollers inserted between the upper and lower pressing blocks. The motor output end is controlled to rotate by the adjusting mechanism, which drives the screw rod to rotate, thereby controlling the movement of the upper pressing block. The two rollers in the upper and lower pressing blocks can adjust the extrusion force of the PVC film edge skirt. When the PVC film moves, the two rollers roll on the PVC film to extrude the PVC film, so that the edge skirt can be smoothed during coiling, effectively avoiding wrinkles on the edge skirt during coiling.

[0004] When using the above technology, it is found that the existing technology has the following technical problems: the installation and disassembly of the coiling roller usually require special tools and technical personnel to operate, which increases the maintenance cost and production downtime. The coiling roller is prone to shaking during coiling, which causes the coiled PVC film to be uneven, affecting product quality. Therefore, we design a PVC film coiling device to provide another technical solution to the above technical problems. SUMMARY

[0005] 1. Technical problem to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a PVC film coiling device, which releases the fixation of the horizontal rotating shaft through the clamping mechanism, facilitating the installation and disassembly of the horizontal rotating shaft. When the U-shaped support frame is attached to the U-shaped support base, the horizontal rotating shaft can be stably clamped by the bottom support roller and the top clamping roller, effectively reducing the shaking during coiling, ensuring uniform coiling of the PVC film, improving product quality, and being easy to operate, reducing maintenance time and cost.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solution.

[0009] A PVC film winding device, comprising a U-shaped support base, a U-shaped support frame is arranged at the top end of the U-shaped support base, a winding roller is arranged in the U-shaped support frame, a transverse rotating shaft is fixed in the winding roller, transverse rotating columns are slidably connected to both ends of the transverse rotating shaft, and a moving mechanism for the movement of the two transverse rotating columns is arranged in the U-shaped support frame.

[0010] Both ends of the U-shaped support frame are provided with clamping mechanisms for clamping the transverse rotating shaft.

[0011] Further, the moving mechanism comprises vertical hydraulic cylinders, vertical hydraulic cylinders are fixed at both ends in the U-shaped support base, a transverse lifting plate is fixed to the output end of the vertical hydraulic cylinder, vertical rotating plates are rotatably connected to both ends in the transverse lifting plate through pin shafts, L-shaped transverse moving plates are rotatably connected to the top of the vertical rotating plates through pin shafts, a driving motor is bolted to one end of the top of the L-shaped transverse moving plate, and the output end of the driving motor is fixedly connected with the transverse rotating column.

[0012] Further, a vertical support pipe is further fixed to the bottom end in the U-shaped support frame, a second vertical rigid spring is arranged in the vertical support pipe, and the bottom of the second vertical rigid spring is fixedly connected with the transverse lifting plate.

[0013] Further, the L-shaped transverse moving plate penetrates the inside of the U-shaped support frame and is slidably connected with the U-shaped support frame, a rectangular through slot is arranged in the L-shaped transverse moving plate, the U-shaped support base is arranged in the rectangular through slot and is slidably connected with the L-shaped transverse moving plate through the rectangular through slot.

[0014] Further, rectangular limiting blocks are fixedly arranged on the outer side of the transverse rotating column, a rectangular limiting groove is arranged in the transverse rotating shaft, and the transverse rotating column and the transverse rotating shaft are gap-fitted through the arrangement of the rectangular limiting blocks and the rectangular limiting groove.

[0015] Further, the clamping mechanism comprises an arc-shaped fixing plate, one end of the U-shaped support frame is fixed with the arc-shaped fixing plate, a vertical light pole is slidably connected in the arc-shaped fixing plate, the bottom of the vertical light pole is fixedly connected with a longitudinal connecting plate, the longitudinal connecting plate is located at the top of the U-shaped support base, a first vertical rigid spring is arranged between the arc-shaped fixing plate and the longitudinal connecting plate and located at the outer side of the vertical light pole, the two ends of the longitudinal connecting plate are both rotatably connected with inclined rotating plates through pin shafts, the top of each inclined rotating plate is rotatably connected with a vertical clamping plate through a pin shaft, a horizontal rotating column is rotatably connected to the middle position of the vertical clamping plate through a bearing, the horizontal rotating column penetrates through the inside of the U-shaped support frame and is rotatably connected with the U-shaped support frame through a bearing, a bottom supporting roller is further fixed to the outer side of the horizontal rotating column, and the bottom supporting roller is located in the inside of the U-shaped support frame; and a top clamping roller is rotatably connected to the top of the vertical clamping plate through a pin shaft.

[0016] Further, a circular through hole is formed in the arc-shaped fixing plate, and the vertical light pole is located in the circular through hole and is slidably connected with the arc-shaped fixing plate through the circular through hole.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The series of designs in the scheme can release the fixation of the horizontal rotating shaft by the clamping mechanism when the U-shaped support frame is jacked up, facilitate the installation and dismounting of the horizontal rotating shaft, and enable the horizontal rotating shaft to be stably clamped by the bottom supporting roller and the top clamping roller when the U-shaped support frame is attached to the U-shaped support base, thereby effectively reducing the shaking in the winding process, ensuring the uniform winding of the PVC film, improving the product quality, and facilitating the operation and reducing the maintenance time and cost.

[0020] The series of designs in the scheme can enable the horizontal rotating column to be inserted into the inside of the horizontal rotating shaft when the U-shaped support frame is attached to the U-shaped support base, so as to facilitate the operation of the driving motor to drive the horizontal rotating shaft to rotate. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the utility model as a whole;

[0022] Figure 2 It is a structural schematic view of the vertical hydraulic cylinder and the horizontal lifting plate of the utility model;

[0023] Figure 3 It is a structural schematic view of the U-shaped support base and the L-shaped transverse plate of the utility model;

[0024] Figure 4It is the structure schematic view of the oblique rotating plate and the longitudinal connecting plate of the utility model;

[0025] Figure 5 It is the structure schematic view of the arc fixed plate and the vertical light pole of the utility model;

[0026] Figure 6 It is the structure schematic view of the inside of the U-shaped support frame of the utility model;

[0027] Figure 7 It is the structure schematic view of the second vertical rigid spring and the vertical support pipe of the utility model.

[0028] Mark explanation in the drawing:

[0029] 1, U-shaped support base;2, U-shaped support frame;3, winding roller;4, transverse rotating shaft;5, driving motor;6, vertical hydraulic cylinder;7, transverse lifting plate;8, L-shaped horizontal moving plate;9, bottom support roller;10, top clamping roller;11, vertical clamping plate;12, transverse rotating column;13, oblique rotating plate;14, longitudinal connecting plate;15, arc fixed plate;16, vertical light pole;17, first vertical rigid spring;18, transverse rotating column;19, vertical rotating plate;20, second vertical rigid spring;21, vertical support pipe. Specific implementation

[0030] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model;Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments;Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Embodiment:

[0032] Please refer to Figures 1-7 A PVC film winding device, including U-shaped support base 1, the top of U-shaped support base 1 is provided with U-shaped support frame 2, the inside of U-shaped support frame 2 is provided with winding roller 3, the inside of winding roller 3 is fixed with transverse rotating shaft 4, the both ends of transverse rotating shaft 4 are slidably connected with transverse rotating column 18, the inside of U-shaped support frame 2 is provided with moving mechanism for the movement of two transverse rotating columns 18;

[0033] The both ends of U-shaped support frame 2 are provided with clamping mechanism for clamping transverse rotating shaft 4;

[0034] The moving mechanism comprises vertical hydraulic cylinders 6, both ends of the vertical hydraulic cylinders 6 are fixed in the U-shaped support base 1, the output end of the vertical hydraulic cylinder 6 is fixed with a transverse lifting plate 7, both ends of the transverse lifting plate 7 are rotatably connected with vertical rotating plates 19 through pin shafts, the top of the vertical rotating plate 19 is rotatably connected with an L-shaped transverse plate 8 through a pin shaft, one end of the top of the L-shaped transverse plate 8 is bolted with a driving motor 5, and the output end of the driving motor 5 is fixedly connected with a transverse rotating column 18;

[0035] The bottom end of the U-shaped support frame 2 is also fixed with a vertical support pipe 21, the vertical support pipe 21 is provided with a second vertical rigid spring 20 in the inside, the bottom of the second vertical rigid spring 20 is fixedly connected with the transverse lifting plate 7, when the transverse lifting plate 7 rises to be in close contact with the bottom of the vertical support pipe 21, the second vertical rigid spring 20 is forced to shrink into the inside of the vertical support pipe 21, and the continuous operation of the vertical hydraulic cylinder 6 enables the U-shaped support frame 2 to rise;

[0036] The L-shaped transverse plate 8 penetrates the inside of the U-shaped support frame 2 and is slidably connected with the U-shaped support frame 2, and a rectangular through slot is formed in the inside of the L-shaped transverse plate 8, the U-shaped support base 1 is located in the rectangular through slot and is slidably connected with the L-shaped transverse plate 8 through the rectangular through slot, and the setting of the rectangular through slot enables the L-shaped transverse plate 8 to slide outside the U-shaped support base 1;

[0037] Rectangular limiting blocks are uniformly fixed on the outside of the transverse rotating column 18, a rectangular limiting groove is formed in the inside of the transverse rotating shaft 4, and the transverse rotating column 18 and the transverse rotating shaft 4 are gap-connected through the rectangular limiting blocks and the rectangular limiting groove, the setting of the rectangular limiting blocks and the rectangular limiting groove enables the transverse rotating column 18 to slide in the inside of the transverse rotating shaft 4, and the operation of the driving motor 5 enables the transverse rotating column 18 to drive the transverse rotating shaft 4 to rotate, so that the transverse rotating shaft 4 can drive the winding roller 3 to rotate;

[0038] Here, when the winding roller 3 needs to be replaced, the operation of the vertical hydraulic cylinder 6 enables the transverse lifting plate 7 to vertically ascend and descend, when the transverse lifting plate 7 rises, firstly, due to the gravity of the U-shaped support frame 2, the rising of the transverse lifting plate 7 enables the L-shaped transverse plate 8 to slide in the inside of the U-shaped support frame 2 through the vertical rotating plate 19, so that the driving motor 5 can move along with the L-shaped transverse plate 8, and the transverse rotating column 18 moves out of the inside of the transverse rotating shaft 4, and the rising of the transverse lifting plate 7 enables the second vertical rigid spring 20 to be forced to shrink, when the transverse lifting plate 7 is in close contact with the bottom of the vertical support pipe 21, the continuous operation of the vertical hydraulic cylinder 6 enables the U-shaped support frame 2 to rise, so that the subsequent winding roller 3 can be conveniently disassembled and replaced;

[0039] When the rolling needs to be carried out, the horizontal lifting plate 7 is attached to the vertical support pipe 21 due to the gravity of the U-shaped support frame 2, the vertical hydraulic cylinder 6 is operated, and then the horizontal lifting plate 7 can be lowered, the lowering of the horizontal lifting plate 7 enables the U-shaped support frame 2 to be lowered, when the bottom of the U-shaped support frame 2 is attached to the U-shaped support base 1, the two horizontal rotating columns 18 are located at both ends of the horizontal rotating shaft 4, the continuous operation of the vertical hydraulic cylinder 6 enables the horizontal lifting plate 7 to be lowered and the U-shaped support frame 2 to be kept stationary on the top of the U-shaped support base 1, the lowering of the horizontal lifting plate 7 enables the L-shaped horizontal moving plate 8 to move inside the U-shaped support frame 2 through the vertical rotating plate 19, so that the horizontal rotating column 18 can move towards the inside of the horizontal rotating shaft 4, when the horizontal rotating column 18 moves to the inside of the horizontal rotating shaft 4, the operation of the vertical hydraulic cylinder 6 is stopped, the operation of the driving motor 5 enables the horizontal rotating column 18 to be rotated, the rotation of the horizontal rotating column 18 enables the horizontal rotating shaft 4 to drive the rolling roller 3 to rotate, so that the rolling roller 3 can roll the PVC film;

[0040] The clamping mechanism comprises an arc-shaped fixed plate 15, one end of the U-shaped support frame 2 is fixedly connected with the arc-shaped fixed plate 15, the inside of the arc-shaped fixed plate 15 is slidably connected with a vertical light rod 16, the bottom of the vertical light rod 16 is fixedly connected with a longitudinal connecting plate 14, and the longitudinal connecting plate 14 is located on the top of the U-shaped support base 1, a first vertical rigid spring 17 is arranged between the arc-shaped fixed plate 15 and the longitudinal connecting plate 14 and located on the outside of the vertical light rod 16, both ends of the longitudinal connecting plate 14 are rotatably connected with inclined rotating plates 13 through pin shafts, the top of each inclined rotating plate 13 is rotatably connected with a vertical clamping plate 11 through a pin shaft, the middle position of the vertical clamping plate 11 is rotatably connected with a horizontal rotating column 12 through a bearing, the horizontal rotating column 12 penetrates through the inside of the U-shaped support frame 2 and is rotatably connected with the U-shaped support frame 2 through a bearing, the outside of the horizontal rotating column 12 is further fixedly connected with a bottom supporting roller 9, and the bottom supporting roller 9 is located in the inside of the U-shaped support frame 2, the top of the vertical clamping plate 11 is rotatably connected with a top clamping roller 10 through a pin shaft;

[0041] The arc-shaped fixed plate 15 is internally provided with a circular through hole, and the vertical light rod 16 is located in the interior of the circular through hole and is connected with the arc-shaped fixed plate 15 through the circular through hole. Through the setting of the circular through hole, the vertical light rod 16 can vertically slide in the interior of the arc-shaped fixed plate 15. When the longitudinal connecting plate 14 is in contact with the U-shaped support base 1, the longitudinal connecting plate 14 can move towards the arc-shaped fixed plate 15. When the U-shaped support frame 2 completely falls into the interior of the U-shaped support base 1, the first vertical rigid spring 17 is forced to contract, and the operation of the longitudinal connecting plate 14 enables the vertical clamping plate 11 to rotate around the horizontal rotating column 12 through the oblique rotating plate 13, so that the two top clamping rollers 10 can rotate towards the outside of the horizontal rotating shaft 4, thereby enabling the two top clamping rollers 10 to clamp the outside of the top of the horizontal rotating shaft 4.

[0042] At this time, when the bottom of the U-shaped support frame 2 is attached to the U-shaped support base 1, the longitudinal connecting plate 14 is located at the top of the U-shaped support base 1, and through the gravity of the U-shaped support frame 2, the two bottom supporting rollers 9 support the outside of the bottom of the horizontal rotating shaft 4. At this time, the first vertical rigid spring 17 is in a forced contraction state, so that the top clamping roller 10 can clamp the outside of the top of the horizontal rotating shaft 4, and the horizontal rotating shaft 4 can rotate between the bottom supporting roller 9 and the top clamping roller 10. When the U-shaped support frame 2 rises, the elastic characteristics of the first vertical rigid spring 17 enable the longitudinal connecting plate 14 to move away from the arc-shaped fixed plate 15. Through the setting of the oblique rotating plate 13, the vertical clamping plate 11 can rotate around the horizontal rotating column 12, so that the top clamping roller 10 can move away from the outside of the horizontal rotating shaft 4, thereby releasing the restriction on the horizontal rotating shaft 4.

[0043] Similarly, during the descending process of the U-shaped support frame 2, the contact between the longitudinal connecting plate 14 and the U-shaped support base 1 enables the vertical light rod 16 to slide in the interior of the longitudinal connecting plate 14, thereby enabling the first vertical rigid spring 17 to be forced to deform. The movement of the longitudinal connecting plate 14 enables the vertical clamping plate 11 to rotate around the horizontal rotating column 12 through the oblique rotating plate 13, so that the top clamping roller 10 can move towards the outside of the horizontal rotating shaft 4, so that the top clamping roller 10 can clamp the outside of the top of the horizontal rotating shaft 4.

[0044] In use: when the winding roller 3 needs to be replaced, the operation of the vertical hydraulic cylinder 6 enables the horizontal lifting plate 7 to be vertically lifted, when the horizontal lifting plate 7 is lifted, firstly due to the gravity of the U-shaped support frame 2, the lifting of the horizontal lifting plate 7 enables the L-shaped horizontal moving plate 8 to slide inside the U-shaped support frame 2 through the vertical rotating plate 19, and then enables the driving motor 5 to move along with the L-shaped horizontal moving plate 8, and then enables the horizontal rotating column 18 to move out of the inside of the horizontal rotating shaft 4, and the lifting of the horizontal lifting plate 7 enables the second vertical rigid spring 20 to be forced to contract, when the horizontal lifting plate 7 is attached to the bottom of the vertical support pipe 21, the continuous operation of the vertical hydraulic cylinder 6 enables the U-shaped support frame 2 to be lifted, thereby facilitating the subsequent disassembly and replacement of the winding roller 3;

[0045] When winding is needed, due to the gravity of the U-shaped support frame 2, the horizontal lifting plate 7 is attached to the vertical support pipe 21, the operation of the vertical hydraulic cylinder 6 enables the horizontal lifting plate 7 to be lowered, the lowering of the horizontal lifting plate 7 enables the U-shaped support frame 2 to be lowered, when the bottom of the U-shaped support frame 2 is attached to the U-shaped support base 1, the two horizontal rotating columns 18 are located at both ends of the horizontal rotating shaft 4, the continuous operation of the vertical hydraulic cylinder 6 enables the horizontal lifting plate 7 to be lowered and the U-shaped support frame 2 to be kept stationary on the top of the U-shaped support base 1, the lowering of the horizontal lifting plate 7 enables the L-shaped horizontal moving plate 8 to move inside the U-shaped support frame 2 through the vertical rotating plate 19, enabling the horizontal rotating column 18 to move towards the inside of the horizontal rotating shaft 4, when the horizontal rotating column 18 moves to the inside of the horizontal rotating shaft 4, the operation of the vertical hydraulic cylinder 6 can be stopped, the operation of the driving motor 5 enables the horizontal rotating column 18 to be rotated, the rotation of the horizontal rotating column 18 enables the horizontal rotating shaft 4 to drive the winding roller 3 to rotate, enabling the winding roller 3 to wind the PVC film;

[0046] When the bottom of the U-shaped support frame 2 is attached to the U-shaped support base 1, the longitudinal connecting plate 14 is located on the top of the U-shaped support base 1, and through the gravity of the U-shaped support frame 2, the two bottom support rollers 9 support the outside of the bottom of the horizontal rotating shaft 4, at this time the first vertical rigid spring 17 is in a forced contraction state, enabling the top clamping roller 10 to clamp the outside of the top of the horizontal rotating shaft 4, and enabling the horizontal rotating shaft 4 to rotate between the bottom support roller 9 and the top clamping roller 10, when the U-shaped support frame 2 is lifted, the elastic feature of the first vertical rigid spring 17 enables the longitudinal connecting plate 14 to move away from the arc-shaped fixed plate 15, through the setting of the oblique rotating plate 13, the vertical clamping plate 11 is enabled to rotate with the horizontal rotating column 12 as the center, and then the top clamping roller 10 is enabled to move away from the outside of the horizontal rotating shaft 4, and then the restriction on the horizontal rotating shaft 4 can be removed;

[0047] Similarly, in the process of the descending of the U-shaped support frame 2, the longitudinal connecting plate 14 is in contact with the U-shaped support base 1, so that the vertical light pole 16 can slide in the interior of the longitudinal connecting plate 14, and then the first vertical rigid spring 17 is deformed under stress, the movement of the longitudinal connecting plate 14 makes the vertical clamping plate 11 be able to rotate with the horizontal rotating column 12 as the center, and then the top clamping roller 10 can move towards the outside of the horizontal rotating shaft 4, so that the top clamping roller 10 can clamp the outside of the top of the horizontal rotating shaft 4.

[0048] The above merely describes a preferred embodiment of the present application; however, the scope of protection of the present application is not limited to this. Any person skilled in the art, within the technical range disclosed by the present application, according to the technical scheme and improvement concept of the present application, can make equivalent replacement or change, which should be covered in the scope of protection of the present application.

Claims

1. A PVC film winding device, characterized in that: Includes a U-shaped support base (1), with a U-shaped support frame (2) at the top of the U-shaped support base (1), a winding roller (3) inside the U-shaped support frame (2), a transverse rotating shaft (4) fixed inside the winding roller (3), and transverse rotating columns (18) slidably connected to both ends of the transverse rotating shaft (4). The U-shaped support frame (2) is provided with a moving mechanism for moving the two transverse rotating columns (18). Both ends of the U-shaped support frame (2) are provided with clamping mechanisms for clamping the transverse rotation shaft (4).

2. The PVC film winding device according to claim 1, characterized in that: The moving mechanism includes a vertical hydraulic cylinder (6), and both ends of the U-shaped support base (1) are fixed with vertical hydraulic cylinders (6). The output end of the vertical hydraulic cylinder (6) is fixed with a horizontal lifting plate (7). Both ends of the horizontal lifting plate (7) are rotatably connected to a vertical rotating plate (19) through a pin shaft. The top of the vertical rotating plate (19) is rotatably connected to an L-shaped horizontal moving plate (8) through a pin shaft. One end of the top of the L-shaped horizontal moving plate (8) is bolted with a drive motor (5). The output end of the drive motor (5) is fixedly connected to the horizontal rotating column (18).

3. A PVC film winding device according to claim 2, characterized in that: The bottom of the U-shaped support frame (2) is also fixed with a vertical support tube (21), and a second vertical rigid spring (20) is provided inside the vertical support tube (21). The bottom of the second vertical rigid spring (20) is fixedly connected to the horizontal lifting plate (7).

4. A PVC film winding device according to claim 2, characterized in that: The L-shaped transverse plate (8) passes through the interior of the U-shaped support frame (2) and is slidably connected to the U-shaped support frame (2). A rectangular through groove is provided inside the L-shaped transverse plate (8). The U-shaped support base (1) is located inside the rectangular through groove and is slidably connected to the L-shaped transverse plate (8) through the rectangular through groove.

5. A PVC film winding device according to claim 2, characterized in that: Rectangular limiting blocks are evenly distributed and fixed on the outer side of the transverse rotating column (18), and a rectangular limiting groove is opened inside the transverse rotating shaft (4). The transverse rotating column (18) and the transverse rotating shaft (4) are fitted with a gap through the rectangular limiting blocks and the rectangular limiting groove.

6. A PVC film winding device according to claim 2, characterized in that: The clamping mechanism includes an arc-shaped fixing plate (15). One end of the U-shaped support frame (2) is fixed with the arc-shaped fixing plate (15). A vertical light rod (16) is slidably connected inside the arc-shaped fixing plate (15). A longitudinal connecting plate (14) is fixedly connected to the bottom of the vertical light rod (16). The longitudinal connecting plate (14) is located at the top of the U-shaped support base (1). A first vertical rigid spring (17) is provided between the arc-shaped fixing plate (15) and the longitudinal connecting plate (14) and on the outside of the vertical light rod (16). Both ends of the longitudinal connecting plate (14) are rotatably connected to inclined planes via pins. The top of the inclined rotating plate (13) is rotatably connected to a vertical clamping plate (11) via a pin. A horizontal rotating column (12) is rotatably connected to the middle of the vertical clamping plate (11) via a bearing. The horizontal rotating column (12) passes through the interior of the U-shaped support frame (2) and is rotatably connected to the U-shaped support frame (2) via a bearing. A bottom support roller (9) is also fixed to the outside of the horizontal rotating column (12). The bottom support roller (9) is located inside the U-shaped support frame (2). A top clamping roller (10) is rotatably connected to the top of the vertical clamping plate (11) via a pin.

7. A PVC film winding device according to claim 6, characterized in that: The arc-shaped fixing plate (15) has a circular through hole inside, and the vertical light rod (16) is located inside the circular through hole and is slidably connected to the arc-shaped fixing plate (15) through the circular through hole.

Images