Tarpaulin winding device

By designing a conveyor belt, lifting frame and cloth rolling device, and utilizing the coordination of the clamping mechanism and the limit plate, the problem of low efficiency in folding and packing the tarpaulin is solved, and efficient and automatic winding of the tarpaulin is achieved.

CN223397139UActive Publication Date: 2025-09-30YINAN ZHITONG PLASTIC MASCH CO LTD
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Patent Information

Application Number
CN202422876743.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-09-30
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

The existing folding and packing efficiency of tarpaulins is low and cannot meet the packaging needs of tarpaulins.

Method used

A tarpaulin winding device is designed, which includes a conveyor belt, a lifting frame and a cloth rolling device. The automatic folding and winding of the tarpaulin is achieved through the cooperation of a clamping mechanism, a limit plate and a cylinder.

Benefits of technology

It improves the packing efficiency of tarpaulins, realizes efficient folding and rolling of tarpaulins, and meets the packing needs of tarpaulins.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a tarpaulin rolling device which comprises a conveying belt for longitudinally conveying tarpaulin, a lifting frame located at the tail end of the conveying belt and a cloth rolling device located on one transverse side of a supporting frame, and the cloth rolling device comprises a base, a rotating plate connected to the base through a shaft and a clamping mechanism arranged on the rotating plate. A sliding rod rotating synchronously with the first rotating shaft is further arranged in the first rotating shaft in a penetrating mode, and a limiting plate is fixedly connected to the sliding rod. When the tarpaulin folding device is used, a conveying belt conveys tarpaulin to the lifting frame, then the base is driven to transversely move, then the clamping mechanism clamps the tarpaulin, the lifting frame descends, then the first rotating shaft is driven to rotate, the tarpaulin rotates and winds around the clamping mechanism, the tarpaulin is folded and rolled, and then the base and the lifting frame are driven to reset. When the awning cloth is wound, the awning cloth transversely moves along with the clamping mechanism, at the moment, transverse movement of the awning cloth is limited through the arrangement of the limiting plates, the awning cloth is pushed out of the clamping mechanism and falls onto the lifting frame, and therefore winding of one piece of awning cloth is completed.
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Description

Technical Field

[0001] The utility model relates to the field of tarpaulins, in particular to the technical field of tarpaulin rolling, and specifically refers to a tarpaulin rolling device. Background Art

[0002] Tarpaulin (also known as waterproof fabric) is a high-strength, highly flexible, and waterproof material. Due to its waterproof and mildew-resistant properties, tarpaulin is widely used in our daily lives. For example, it is used in cargo transportation on trucks, trains, and ships; it is used to cover open-air warehouses at stations, docks, seaports, and airports; and it is used as a variety of tents, including military tents, construction tents, and folding tents. Each type of tent is made of different materials and has different performance characteristics. Some are thicker and more resistant to harsh living environments, while others are rain and snowproof and some provide shade.

[0003] There is currently a type of tarpaulin used in tents that needs to be folded and packed after the production process is completed. However, the current tarpaulin folding method is inefficient and cannot meet the needs of tarpaulin packing. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a tarpaulin rolling device, which improves the tarpaulin packing efficiency and meets the packing requirements.

[0005] The utility model is realized through the following technical scheme: a tarpaulin winding device, comprising a conveyor belt for longitudinally transporting the tarpaulin, a lifting frame located at the tail end of the conveyor belt and moving in the height direction, and a cloth rolling device located on the lateral side of the support frame, the cloth rolling device comprising a base that moves laterally, a rotating plate connected to the base through a first rotating shaft extending laterally, and a clamping mechanism arranged on the rotating plate and clamping the tarpaulin from the upper and lower ends, a sliding rod that is coaxial with the first rotating shaft and rotates synchronously with the first rotating shaft is also passed through the first rotating shaft, the sliding rod is slidably connected to the rotating plate in the laterally direction, and a limit plate is fixed to the sliding rod that extends into the clamping mechanism and is used to limit the tarpaulin from moving laterally following the clamping device.

[0006] When the present invention is used, the tarpaulin is first folded for the first time, and the thickness of the tarpaulin is thickened while the width of the tarpaulin is reduced. The tarpaulin is then placed on the conveyor belt, which transports the tarpaulin to the lifting frame. The base is then driven to move laterally, so that the clamping mechanism moves laterally, thereby allowing the tarpaulin to enter the clamping mechanism. Since the slide bar is slidably connected to the rotating plate, the limit plate does not follow the laterally movement of the base. The clamping mechanism is then clamped to clamp the tarpaulin, and the lifting frame is lowered, thereby preventing the lifting frame from interfering with the rotation of the clamping mechanism. The first rotating shaft is then driven to rotate, and the rotation of the first rotating shaft drives the rotating plate and the clamping mechanism to rotate, thereby causing the tarpaulin to rotate and wrap around the clamping mechanism, thereby folding and rolling up the tarpaulin. The base and the lifting frame are then driven to reset, and the tarpaulin follows the clamping mechanism to move laterally. At this time, the setting of the limit plate limits the laterally movement of the tarpaulin, and the tarpaulin is pushed out of the clamping mechanism and falls onto the lifting frame, thereby completing the rolling up of the tarpaulin.

[0007] Preferably, the clamping mechanism includes four pressure rods arranged in a rectangular shape, a longitudinal cylinder is provided on the rotating plate for driving the two longitudinally arranged pressure rods to move synchronously in the longitudinal direction, and a vertical cylinder is provided on the rotating plate for driving the two pressure rods arranged in the height direction to move synchronously in the height direction.

[0008] When this preferred solution is in use, the distance between the two longitudinally arranged pressure rods is adjusted by setting the longitudinal cylinder, thereby adjusting the length of the tarpaulin when folded. The setting of the vertical cylinder facilitates the movement of the two pressure rods arranged along the height direction toward each other, thereby clamping the tarpaulin.

[0009] As an advantage, the maximum distance between the two longitudinally arranged pressure rods is smaller than the longitudinal length of the limiting plate. The arrangement of this preferred solution ensures the limiting effect of the limiting plate.

[0010] Preferably, a rotary joint is fixedly connected to the first rotating shaft, and a sliding seat is provided on the rotating plate for the sliding rod to pass through and slide laterally. The sliding rod seal passes through the rotary joint. A cavity is provided in the first rotating shaft for the sliding rod to pass through. Several air pipes are provided in the cavity. One end of the air pipe is connected to the air channel corresponding to the rotary joint, and the other end is sealed and passes through to the outside of the first rotating shaft and is connected to the corresponding longitudinal cylinder or vertical cylinder.

[0011] When this preferred solution is in use, since the longitudinal cylinder and the vertical cylinder are arranged on the rotating plate, the rotating plate needs to rotate, which causes the air pipes of the longitudinal cylinder and the vertical cylinder to rotate with the rotating plate, thereby causing the air pipes to be entangled. This preferred solution uses the setting of a rotary joint and an air supply pipe to make the air pipes of the longitudinal cylinder and the vertical cylinder rotate synchronously with the longitudinal cylinder and the vertical cylinder, thereby avoiding the occurrence of air pipe entanglement.

[0012] Preferably, a first synchronous wheel is provided on the first rotating shaft, a first motor is provided on the base, an output shaft of the first motor is connected to the first synchronous wheel, and the two first synchronous wheels are connected by an annular synchronous belt.

[0013] When this preferred solution is in use, the first motor drives the synchronous belt and the first synchronous wheel to rotate, thereby realizing the rotation of the first rotating shaft.

[0014] Preferably, a conveying shaft is axially connected to the bracket of the conveyor belt, a pressing bracket is fixedly connected to the conveying shaft, a pressing roller is axially connected to the pressing bracket, and a channel for the tarpaulin to pass through is formed between the pressing roller and the conveying roller at the tail of the conveyor belt. A conveying cylinder is also hinged on the bracket to drive the pressing bracket to rotate.

[0015] When this preferred solution is in use, when the clamping mechanism clamps the tarpaulin, the transmission cylinder is driven to contract, driving the pressing roller to descend, so that the pressing roller presses the tarpaulin on the transmission roller, thereby preventing the tarpaulin from warping during the folding and rolling process, thereby ensuring the rolling and folding effect of the tarpaulin.

[0016] Preferably, the lifting frame is axially connected to several support rollers supporting the tarpaulin, the pressure rod is adapted to the height of the support rollers and is inserted between two adjacent support rollers, the side of the lifting frame is provided with a lifting cylinder extending in the height direction and fixed to the support frame, the protruding end of the lifting cylinder is hinged with a lifting plate fixed to the lifting frame, the support frame is also axially connected to a lifting shaft located above and below the lifting frame, the lifting shaft is provided with a lifting sprocket, two lifting sprockets arranged in the height direction and correspondingly arranged are wound with a lifting chain, and both ends of the lifting chain are fixed to the lifting frame.

[0017] When this preferred solution is in use, the extension of the lifting cylinder drives the lifting frame to move up and down in the height direction. At the same time, the arrangement of the lifting sprocket and the lifting chain also plays a role in supporting the lifting frame and guiding the lifting of the lifting frame.

[0018] Preferably, two adjacent support rollers are connected by a transmission structure, which includes a first sprocket arranged on the support roller and a first chain connecting the two first sprockets. The lifting frame is also provided with a lifting motor that drives one of the first sprockets.

[0019] This preferred solution facilitates the rotation of the support rollers by providing a lifting motor, thereby adjusting the position of the tarpaulin.

[0020] The beneficial effects of the present invention are as follows: first, the tarpaulin is folded for the first time, and the thickness of the tarpaulin is thickened while the width of the tarpaulin is reduced. Then, the tarpaulin is placed on the conveyor belt, and the conveyor belt transports the tarpaulin to the lifting frame. Then, the base is driven to move laterally, so that the clamping mechanism moves laterally, so that the tarpaulin enters the clamping mechanism. Since the slide rod is slidably connected to the rotating plate, the limit plate does not follow the laterally movement of the base. Then, the clamping mechanism clamps the tarpaulin, and the lifting frame descends, thereby avoiding the lifting frame interfering with the rotation of the clamping mechanism. Then, the first rotating shaft is driven to rotate, and the rotation of the first rotating shaft drives the rotating plate and the clamping mechanism to rotate, so that the tarpaulin is rotated and wound around the clamping mechanism, so that the tarpaulin is folded and rolled up. Then, the base and the lifting frame are driven to reset, and the tarpaulin follows the clamping mechanism to move laterally. At this time, the setting of the limit plate limits the laterally movement of the tarpaulin, and the tarpaulin is pushed out of the clamping mechanism and falls onto the lifting frame, thereby completing the rolling of a tarpaulin. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic top view of the structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the main view of the cloth rolling device;

[0023] Figure 3 It is a left side schematic diagram of the cloth rolling device;

[0024] Figure 4 for Figure 3 AA is a cross-sectional view;

[0025] Figure 5 It is a top view schematic diagram of the cloth rolling device;

[0026] Figure 6 It is a three-dimensional schematic diagram of a cloth rolling device;

[0027] Figure 7 It is a side view schematic diagram of the conveyor belt;

[0028] Figure 8 This is a left side view of the lifting frame;

[0029] Figure 9 This is a top view of the lifting frame;

[0030] Figure 10 for Figure 9 A in the middle is an enlarged schematic diagram;

[0031] As shown in the figure:

[0032] 1. Conveyor belt, 2. Lifting frame, 3. Cloth rolling device, 10. Pressing roller, 11. Pressing bracket, 12. Conveying shaft, 13. Conveying cylinder, 14. Conveying roller, 21. Lifting cylinder, 22. Lifting plate, 23. Lifting shaft, 24. Lifting chain, 25. Lifting sprocket, 26. Lifting motor, 27. Transmission structure, 30. Slide rod, 31. Pressure rod, 32. Base, 33. Rotary joint, 34. First motor, 35. First synchronous wheel, 36. Shaft seat, 37. Vertical cylinder, 38. Limiting plate, 39. Vertical cylinder, 40. Longitudinal slide rail, 41. Vertical slider, 42. Turning plate, 43. Air supply port, 44. First shaft. DETAILED DESCRIPTION

[0033] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0034] Refer to the attached Figure 1-10 The utility model provides a tarpaulin winding device, which includes a conveyor belt 1 for longitudinally transporting the tarpaulin, a lifting frame 2 located at the tail end of the conveyor belt 1 and moving along the height direction, and a cloth winding device 3 located on a lateral side of the support frame.

[0035] The cloth winding device 3 includes a base 32 that moves laterally, and the base 32 is slidably connected to a laterally extending bottom slide rail. Two second synchronous wheels arranged laterally are fixed to the bottom slide rail. The two second synchronous wheels are connected by a synchronous belt. After the synchronous belt passes around the two second synchronous wheels, both ends are fixed to the base 32, and one of the second synchronous wheels is connected to the output shaft of the servo motor.

[0036] Two horizontally arranged shaft seats 36 are provided on the base 32, and a horizontally extending first rotating shaft 44 is axially connected to the two shaft seats 36. A first synchronous wheel 35 located between the two shaft seats 36 is fixedly connected to the first rotating shaft 44. A first motor 34 is provided on the base 32, and a first synchronous wheel 35 is connected to the output shaft of the first motor 34. The two first synchronous wheels 35 are connected by an annular synchronous belt.

[0037] A rotating plate 42 is fixedly connected to one end of the first rotating shaft 44 close to the lifting frame 2, and a clamping mechanism is connected to the rotating plate 42. The clamping mechanism includes four pressure rods 31 arranged in a rectangular shape, and the pressure rods 31 are fixed to the support. The support bolts are connected to the longitudinal slider. The longitudinal slider slides on the longitudinal slide rail 40 in the longitudinal direction. The two longitudinally arranged pressure rods 31 are slid on the same longitudinal slide rail 40. The longitudinal slide rail 40 is also provided with a longitudinal cylinder 39 extending in the longitudinal direction. The longitudinal cylinder 39 is located between the two longitudinal sliders and the two ends of the longitudinal cylinder 39 are respectively hinged to the two longitudinal sliders, that is, the rotating plate 42 is provided with a longitudinal cylinder 39 that drives the two longitudinally arranged pressure rods 31 to move synchronously in the longitudinal direction.

[0038] Two vertical sliders 41 arranged longitudinally are fixed to the longitudinal slide rail 40. The vertical sliders 41 are slidably connected to the vertical slide rail along the height direction. The vertical slide rail is connected to the longitudinal slide rail 40 through the two vertical sliders 41 arranged along the height direction. A vertical cylinder 37 extending along the height direction is further provided between the two vertical sliders 41 on the same vertical slide rail. The two ends of the vertical cylinder 37 are respectively hinged to the two vertical sliders 41.

[0039] The longitudinal cylinder 39 and the vertical cylinder 37 are respectively located on both sides of the rotating plate 42. The vertical cylinder 37 is located between the rotating plate 42 and the hinge seat. A long hole is provided on the rotating plate 42 for the vertical slider 41 to pass through. The long hole extends along the height direction, that is, the rotating plate 42 is provided with a vertical cylinder 37 that drives the two pressure rods 31 arranged along the height direction to move synchronously along the height direction.

[0040] The end of the first rotating shaft 44 away from the rotating plate 42 is fixedly connected to the rotating joint 33, and a cavity is provided in the first rotating shaft 44. A sliding rod 30 is passed through the first rotating shaft 44 and is arranged with its axis. The sliding rod 30 is sealed and rotatably connected to the rotating joint 33. The rotating plate 42 is provided with a sliding seat for the sliding rod 30 to be sealed and rotatably connected. The sliding rod 30 is sealed and slidably connected in the rotating joint 33 and the sliding seat along the transverse direction. One end of the sliding rod 30 is fixed with a limit plate 38 located in the clamping mechanism. The limit plate 38 is located between two pressure rods 31 arranged along the height direction. The maximum distance between the two longitudinally arranged pressure rods 31 is less than the longitudinal length of the limit plate 38.

[0041] The other end of the slide bar 30 is fixedly connected to the rotating motor, and the rotating motor rotates synchronously with the first motor 34 .

[0042] Several air pipes are provided in the cavity of the first rotating shaft 44, one end of the air pipe is connected to the air channel corresponding to the rotary joint 33, and the other end is sealed and passes through the first rotating shaft 44 and extends to the outside of the first rotating shaft 44, and is connected to the corresponding longitudinal cylinder 39 or vertical cylinder 37, that is, the air intake pipe and the air return pipe of the longitudinal cylinder 39 and the vertical cylinder 37 are connected to the corresponding air pipe, so as to avoid the air intake pipe and the air return pipe from being entangled when the rotating plate 42 rotates. An air supply port 43 for the air pipe to pass through in a sealed manner is opened on the first rotating shaft 44.

[0043] A conveying shaft 12 is axially connected to the bracket of the conveyor belt 1, and a pressing bracket 11 is fixedly connected to the conveying shaft 12. A pressing roller 10 is axially connected to the pressing bracket 11. A channel for the tarpaulin to pass through is formed between the pressing roller 10 and the conveying roller 14 at the tail of the conveyor belt 1. A conveying cylinder 13 is also hinged on the bracket to drive the pressing bracket 11 to rotate, and the other end of the conveying cylinder 13 is hinged on the pressing roller 10.

[0044] The lifting frame 2 is axially connected to several support rollers that support the tarpaulin. The pressure rod 31 located below is adapted to the height of the support rollers and is inserted between two adjacent support rollers. The side of the lifting frame 2 is provided with a lifting cylinder 21 that extends in the height direction and is fixed to the support frame. The protruding end of the lifting cylinder 21 is hinged to a lifting plate 22 fixed to the lifting frame 2. The support frame is also axially connected to a lifting shaft 23 located above and below the lifting frame 2. A lifting sprocket 25 is provided on the lifting shaft 23. A lifting chain 24 is wound around two lifting sprockets 25 arranged in the height direction and correspondingly arranged. The two ends of the lifting chain 24 are fixed to the lifting frame 2. There are two lifting chains 24, and the lifting cylinder 21 is located between the two lifting chains 24.

[0045] Two adjacent support rollers are connected by a transmission structure 27. The transmission structure 27 includes a first sprocket provided on the support roller and a first chain connecting the two first sprockets. The lifting frame 2 is also provided with a lifting motor 26 that drives one of the first sprockets.

[0046] In particular, the rotary joint 33 is a prior art. Figure 4 In the middle, not cut open, refer to the attached Figure 1 , the horizontal direction is the horizontal direction, the vertical direction is the longitudinal direction, and the vertical direction is perpendicular to the attached Figure 1 The direction of the plane is the height direction.

[0047] When the utility model is used, the tarpaulin is first folded for the first time, and the thickness of the tarpaulin is thickened while the width of the tarpaulin is reduced. Then the tarpaulin is placed on the conveyor belt 1, and the conveyor belt 1 transports the tarpaulin to the support roller of the lifting frame 2. The lifting motor 26 drives the support roller to rotate, thereby adjusting the position of the tarpaulin;

[0048] Then, the servo motor is driven to move the base 32 laterally via the second synchronous wheel and the synchronous belt, so that the pressure rod 31 located below is inserted between two adjacent support rollers. Since the slide rod 30 is laterally slidably connected to the rotating plate 42 and the rotary joint 33, the limit plate 38 does not move laterally with the base 32.

[0049] The distance between the two longitudinally arranged pressure rods 31 is adjusted by the longitudinal cylinder 39. At this time, the tarpaulin is located between the clamping mechanisms. The two lower pressure rods 31 are located below the tarpaulin, and the two upper pressure rods 31 are located above the tarpaulin. Then, the vertical cylinder 37 is driven to move the pressure rods 31 toward each other, so that the four pressure rods 31 press the tarpaulin.

[0050] At this time, the lifting cylinder 21 is driven to drive the lifting frame 2 to descend, and at the same time, the conveying cylinder 13 is driven to drive the pressing roller 10 to press onto the tarpaulin, and then the first motor 34 and the rotating motor are driven to rotate synchronously, that is, the limit plate 38 and the clamping structure are driven to rotate synchronously. During the rotation process, the tarpaulin is folded and rolled up.

[0051] Then the base 32 and the lifting frame 2 are reset, and the tarpaulin moves laterally along with the clamping mechanism. At this time, the setting of the limit plate 38 limits the lateral movement of the tarpaulin, and the tarpaulin is pushed out of the clamping mechanism and falls onto the lifting frame 2, thereby completing the winding of the tarpaulin.

[0052] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A tarpaulin reeling device, characterized in that: The invention comprises a conveyor belt (1) for longitudinally transporting a tarpaulin, a lifting frame (2) located at the rear end of the conveyor belt (1) and moving in the height direction, and a cloth rolling device (3) located on a lateral side of the support frame, wherein the cloth rolling device (3) comprises a base (32) that moves laterally, a rotating plate (42) connected to the base (32) via a first rotating shaft (44) extending laterally, and a clamping mechanism arranged on the rotating plate (42) and clamping the tarpaulin from the upper and lower ends, wherein a sliding rod (30) is also passed through the first rotating shaft (44) and is coaxially arranged with the first rotating shaft (44) and rotates synchronously with the first rotating shaft (44), the sliding rod (30) is slidably connected to the rotating plate (42) in the laterally direction, and a limit plate (38) is fixed to the sliding rod (30) and extends into the clamping mechanism and is used to limit the tarpaulin from moving laterally following the clamping mechanism.

2. The tarpaulin rewinding device according to claim 1, characterized in that: The clamping mechanism comprises four pressure rods (31) arranged in a rectangular shape, a longitudinal cylinder (39) is provided on the rotating plate (42) for driving the two pressure rods (31) arranged in the longitudinal direction to move synchronously in the longitudinal direction, and a vertical cylinder (37) is provided on the rotating plate (42) for driving the two pressure rods (31) arranged in the height direction to move synchronously in the height direction.

3. The tarpaulin rewinding device according to claim 2, characterized in that: The maximum distance between the two longitudinally arranged pressure rods (31) is smaller than the longitudinal length of the limiting plate (38).

4. The tarpaulin rewinding device according to claim 2, characterized in that: A rotary joint (33) is fixedly connected to the first rotating shaft (44), and a sliding seat is provided on the rotating plate (42) for the sliding rod (30) to pass through in a sealed manner and slide laterally. The sliding rod (30) is sealed through the rotary joint (33). A cavity is provided in the first rotating shaft (44) for the sliding rod (30) to pass through. A plurality of air pipes are provided in the cavity. One end of the air pipe is communicated with the air passage corresponding to the rotary joint (33), and the other end is sealed and passes through the outside of the first rotating shaft (44) and is communicated with the corresponding longitudinal cylinder (39) or vertical cylinder (37).

5. The tarpaulin rewinding device according to claim 1, characterized in that: A first synchronous wheel (35) is provided on the first rotating shaft (44), a first motor (34) is provided on the base (32), an output shaft of the first motor (34) is connected to the first synchronous wheel (35), and the two first synchronous wheels (35) are connected via an annular synchronous belt.

6. The tarpaulin rewinding device according to claim 1, characterized in that: A transmission shaft (12) is connected to the upper axis of the bracket of the conveyor belt (1), a pressing bracket (11) is fixedly connected to the transmission shaft (12), a pressing roller (10) is connected to the upper axis of the pressing bracket (11), and a channel for the tarpaulin to pass through is formed between the pressing roller (10) and the transmission roller (14) at the tail end of the conveyor belt (1), and a transmission cylinder (13) is also hinged on the bracket to drive the pressing bracket (11) to rotate.

7. The tarpaulin reeling device according to claim 2, characterized in that: The lifting frame (2) is axially connected to a plurality of support rollers for supporting the tarpaulin. The pressure rod (31) is adapted to the height of the support rollers and is inserted between two adjacent support rollers. The side of the lifting frame (2) is provided with a lifting cylinder (21) extending in the height direction and fixed to the support frame. The extended end of the lifting cylinder (21) is hinged with a lifting plate (22) fixed to the lifting frame (2). The support frame is also axially connected to a lifting shaft (23) located above and below the lifting frame (2). The lifting shaft (23) is provided with a lifting sprocket (25). A lifting chain (24) is wound around two lifting sprockets (25) arranged in the height direction and correspondingly arranged. Both ends of the lifting chain (24) are fixed to the lifting frame (2).

8. The tarpaulin reeling device according to claim 7, characterized in that: Two adjacent support rollers are connected via a transmission structure (27), the transmission structure (27) comprising a first sprocket arranged on the support roller and a first chain connecting the two first sprockets, and the lifting frame (2) is also provided with a lifting motor (26) that drives one of the first sprockets.