Prefabricated component maintenance device and maintenance process for road and bridge construction

Abstract

The present invention relates to the technical field of road and bridge construction, and discloses a prefabricated component maintenance device and maintenance process for road and bridge construction, comprising a movable frame, a mounting notch is provided in the middle of the movable frame, a film roll shaft is rotatably connected to the front and rear sides of the mounting notch, a maintenance film roll is provided on the outside of the film roll shaft, a water tank is fixedly connected to the top left side of the movable frame, a leveling member for laying the maintenance film roll is provided on the front and rear sides of the interior of the movable frame, a center roller is rotatably connected to the front and rear sides of the exterior of the center roller is rotatably connected to a swing rod, and a through pipe is fixedly connected to the left side of the bottom end of the adjacent swing rod. In the present invention, the water flow is sprayed evenly to the maintenance film roll, the maintenance effect is consistent, the water absorption is increased, and the film roll and the leveling shaft can be locked by rotating the pressure rod, which is convenient for the movable frame to push, ensures the film roll is fixed, and reduces the waste of the film roll.

Description

Technical Field

[0001] The present invention relates to the technical field of road and bridge construction, and in particular to a prefabricated component maintenance device and a maintenance process for road and bridge construction. Background Art

[0002] Precast concrete components are concrete parts that are prefabricated to design specifications in a factory or on-site. After being formed, these components must be cured under specific moisture and temperature conditions to ensure that the newly poured concrete hardens normally or faster and develops strength.

[0003] Concrete curing typically involves film sprinkling, which requires constant moisture. However, in practice, we've discovered several issues with existing film sprinkling curing technology: the film on precast components is prone to wrinkling or damage. Furthermore, without sprinkling, the film lacks sufficient adhesion and is easily blown by the wind. During sprinkling, the impact of the water flow can cause the film to move, leading to film failure and insufficient localized wetness on the precast component surface. This can cause cracking during curing and compromise the quality of the precast component. To address these issues, we propose a precast component curing device and process for road and bridge construction. Summary of the Invention

[0004] The purpose of the present invention is to provide a prefabricated component maintenance device and maintenance process for road and bridge construction to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides: a prefabricated component maintenance device for road and bridge construction, comprising a movable frame, the middle of the movable frame is provided with an installation slot, the front and rear sides of the installation slot are rotatably connected to a film rolling shaft, the outside of the film rolling shaft is provided with a maintenance film, the top left side of the movable frame is fixedly connected to a water tank, the front and rear sides of the interior of the movable frame are provided with leveling parts for laying the maintenance film, the front and rear sides of the movable frame are rotatably connected to a center roller, the front and rear sides of the outside of the center roller are rotatably connected to a swing rod, the bottom left side adjacent to the swing rod is fixedly connected with a through pipe, a plurality of water-saving sprinklers are provided on the outside of the through pipe, the front and rear sides of the water tank are provided with connecting pipes, and the front and rear sides of the movable frame are provided with fixing parts for locking the maintenance film.

[0006] Preferably, the leveling member includes a slide groove, the slide groove is opened on the front and rear sides of the interior of the movable frame plate, the inner top end of the slide groove is fixedly connected to a limit spring, the bottom end of the limit spring is fixedly connected to a sliding block, the middle part of the sliding block is rotatably connected to the leveling shaft, the middle part of the sliding block is movably connected to a camshaft disk, the outer part of the sliding block is slidably connected to the inner part of the slide groove, and the right end of the swing rod is rotatably connected to the outer part of the camshaft disk;

[0007] The cam is fixedly mounted on the support frame, and the cam is connected to the support frame by a first adjusting rod and a second adjusting rod, the cam being connected to the support frame by a first adjusting rod and a second adjusting rod.

[0008] Preferably, the bottom end of the connecting pipe is fixedly connected to the front and rear sides of the water-saving sprinkler;

[0009] Preferably, the top teeth of the second adjusting rod are meshed with the bottom teeth of the first adjusting rod;

[0010] Preferably, the side of the second adjusting rod close to the water tank is slidably connected to the front and rear sides of the movable frame, and the side of the first adjusting rod close to the water tank is slidably connected to the front and rear sides of the movable frame;

[0011] Preferably, a handrail is fixedly connected to the right side of the top of the movable frame;

[0012] Preferably, a loading bucket is detachably connected to the left side of the interior of the mounting slot, and a cleaning shaft is rotatably connected to the bottom end of the loading bucket.

[0013] A maintenance process for prefabricated components for road and bridge construction, according to the above-mentioned maintenance device for prefabricated components for road and bridge construction, the specific method includes the following steps:

[0014] S1. Start: The user starts the water tank pump through the control terminal, and the water is sent to the through pipe through the connecting pipe and sprayed out by the water-saving sprinkler.

[0015] S2. Cleaning: Pull the handrail to drive the mobile frame forward, and the front cleaning shaft rolls to absorb and collect road dust and debris into the loading hopper.

[0016] S3. Laying and spraying curing liquid: The leveling shaft in the middle of the mobile frame contacts the ground and rolls, pulling and leveling the curing film to prevent wrinkles. At the same time, the leveling shaft rotates to drive the camshaft disc, so that the swing rod pushes the through pipe and water-saving sprinkler to swing, evenly spraying water to the curing film.

[0017] S4. Locking the film roll: When there is no need to lay the curing film roll, cut the film roll first, then swing the first adjusting rod backward, and turn the second adjusting rod through the engagement of the teeth, driving the pressure rod to squeeze the leveling shaft, making it suspended in the air, locking the curing film roll and the leveling shaft, making it easier to push the mobile frame and prevent the curing film roll from rolling and wasting in advance.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, the leveling shaft in the middle of the movable frame contacts the ground and rolls, pulling the curing film and leveling it to prevent wrinkles. When the leveling shaft rotates, it drives the camshaft discs on the front and rear sides to rotate, so that the swing rod swings around the positioning roller under the push of the cam, synchronously driving the through pipe and water-saving sprinkler to swing, so as to achieve uniform spraying of water onto the curing film, avoid local uneven spraying, ensure consistent road curing effect, and increase the water absorption capacity of the curing film.

[0020] 2. In the present invention, by swinging the first adjusting rod backward, the teeth at the bottom end thereof engage with the teeth of the second adjusting rod to make it turn. Since the rotation center of the second adjusting rod is higher than the center axis of the leveling shaft, the rotation drives the pressure rod to squeeze the leveling shaft. The leveling shaft is suspended in the air after being squeezed by the sliding block to squeeze the limit spring, so that the pressure rod locks the curing roll film and the leveling shaft, making it convenient to push the mobile frame, and ensuring that the curing roll film remains fixed before reaching the designated laying position, thereby reducing the waste of curing roll film caused by the rolling of the roll film shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a structural cross-sectional view of the movable frame of the present invention;

[0023] Figure 3 This is a schematic structural diagram of the slideway, the sliding block, and the leveling shaft of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the swing arm of the present invention;

[0025] Figure 5 This is a schematic structural diagram of the through pipe and the camshaft disc of the present invention;

[0026] Figure 6 This is a schematic structural diagram of the curing film roll of the present invention;

[0027] Figure 7This is a schematic structural diagram of the leveling shaft, the second adjusting rod, and the pressure rod of the present invention;

[0028] Figure 8 It is a schematic diagram of the structural coordination of the first adjusting rod, the push rod, the pressure rod and the second adjusting rod of the present invention.

[0029] Legend:

[0030] 1. Moving frame; 2. Mounting slot; 3. Film roll shaft; 4. Film curing; 5. Water tank; 6. Slide; 7. Limit spring; 8. Sliding block; 9. Leveling shaft; 10. Camshaft disc; 11. Center roller; 12. Swing rod; 13. Through pipe; 14. Water-saving sprinkler; 15. Connecting pipe; 16. First positioning roller; 17. First adjusting rod; 18. Second positioning roller; 19. Second adjusting rod; 20. First fixed roller; 21. Second fixed roller; 22. Tension spring; 23. Pressure rod; 24. Auxiliary wheel; 25. Push rod; 26. Handrail; 27. Loading bucket; 28. Cleaning shaft. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figures 1 to 3 , the present invention provides an embodiment: a prefabricated component maintenance device for road and bridge construction, comprising a movable frame 1, with wheels provided at the four corners of the bottom end of the movable frame 1, so that the user can push the maintenance device conveniently. A mounting slot 2 is provided in the middle of the movable frame 1, and the mounting slot 2 provides a mounting space for the film roll shaft 3, so that the film roll shaft 3 can rotate therein, thereby realizing the winding and unwinding operation of the maintenance film roll 4. The front and rear sides of the mounting slot 2 are rotatably connected with the film roll shaft 3, and the maintenance film roll 4 is wound around the outside. During the operation of the device, as the leveling shaft 9 pulls the maintenance film roll 4, the film roll shaft 3 will rotate accordingly to realize the release of the maintenance film roll 4.

[0033] A curing film roll 4 is mounted on the exterior of the film roll shaft 3. This film roll 4 is used to evenly lay on the surface of the precast road component, effectively absorbing the sprayed curing fluid and maintaining its moisture, thereby ensuring the curing effect of the precast component. A water tank 5 is fixedly connected to the left side of the top of the mobile frame 1. Water pumps are installed in front and behind the water tank 5. Control buttons are used to control the delivery of curing fluid within the water tank 5.

[0034] refer to Figure 2 、 Figure 4 and Figure 5Leveling elements for laying the curing film roll 4 are provided on the front and rear sides of the leveling shaft 9. These leveling elements include chutes 6, which are formed on the front and rear sides of the movable frame 1. The chutes 6 are located on the left side of the inner wall of the movable frame 1 and are used to define the position of the leveling shaft 9. A limit spring 7 is fixedly connected to the top end of the chutes 6. The limit spring 7 is used to limit and reset the sliding block 8.

[0035] The bottom end of the limit spring 7 is fixedly connected to a sliding block 8. The outer portion of the sliding block 8 is slidably connected to the inner portion of the chute 6. There are two sliding blocks 8, which indirectly fix the leveling shaft 9 to the movable frame 1 through the sliding blocks 8. The middle portion of the sliding block 8 is rotatably connected to the leveling shaft 9. The leveling shaft 9 rolls against the ground during movement, pulling and leveling the curing film 4 to prevent wrinkles on the curing film 4. The middle portion of the sliding block 8 is movably connected to a camshaft disc 10. When the leveling shaft 9 rotates, it synchronously drives the camshaft disc 10 to rotate. The camshaft disc 10 is a structure with discs on both sides of the central cam.

[0036] The front and rear sides of the movable frame 1 are rotatably connected to the center roller 11. The center roller 11 provides a stable support point for the rotation of the swing rod 12, so that the swing rod 12 can swing around the center roller 11 under the rotation of the camshaft disc 10. The front and rear sides of the outside of the center roller 11 are both rotatably connected to the swing rod 12. The bottom left side of the adjacent swing rod 12 is fixedly connected to a through pipe 13. The right end of the swing rod 12 is rotatably connected to the outside of the camshaft disc 10. The outside of the through pipe 13 is provided with multiple water-saving nozzles 14. The swing rod 12 converts the rotation of the camshaft disc 10 into its own swing, thereby driving the through pipe 13 and the water-saving nozzle 14 to swing, realizing the swinging spraying of water flow, further expanding the watering coverage, and enabling the maintenance roll film 4 to absorb water more evenly, which is conducive to ensuring the maintenance quality of road and bridge prefabricated parts.

[0037] Connecting pipes 15 are provided on the front and rear sides of the water tank 5. The bottom ends of the connecting pipes 15 are fixedly connected to the front and rear sides of the water-saving sprinkler 14. The connecting pipes 15 serve to transport the water in the water tank 5 to the water-saving sprinkler 14, thereby realizing the connection of the water source from the water tank 5 to the spraying component.

[0038] refer to Figure 1 、 Figure 7 and Figure 8, the front and rear sides of the movable frame 1 are provided with fixing parts for locking the curing roll film 4, and the fixing parts include a first positioning roller 16, the first positioning roller 16 is fixedly connected to the front and rear sides of the outside of the movable frame 1, the external rotation of the first positioning roller 16 is connected to the first adjusting rod 17, the side of the first adjusting rod 17 close to the water tank 5 is slidingly connected to the front and rear sides of the movable frame 1, the front and rear sides of the outside of the movable frame 1 are fixedly connected to the second positioning roller 18, the external rotation of the second positioning roller 18 is connected to the second adjusting rod 19, and the top teeth of the second adjusting rod 19 are meshed with the bottom teeth of the first adjusting rod 17. When the first adjusting rod 17 is swung backward, the first adjusting rod 17 rotates, and the bottom teeth engage with the teeth of the second adjusting rod 19, causing the second adjusting rod 19 to turn. Since the rotation center of the second adjusting rod 19 (the second positioning roller 18) is higher than the center axis position of the leveling shaft 9, the turning of the second adjusting rod 19 will drive the pressure rod 23 to squeeze the outside of the leveling shaft 9. After the leveling shaft 9 is squeezed, the sliding block 8 squeezes the limit spring 7, allowing the leveling shaft 9 to be suspended in the air, so that the pressure rod 23 locks the curing film 4 and the leveling shaft 9, making it convenient for the user to keep the curing film 4 fixed when pushing the movable frame 1.

[0039] The second adjusting rod 19 is slidably connected to the front and rear sides of the movable frame 1 on one side close to the water tank 5, and the middle part of the first adjusting rod 17 is fixedly connected to the second fixed roller 21, and the middle part of the second adjusting rod 19 is fixedly connected to the first fixed roller 20. The second fixed roller 21 and the first fixed roller 20 are externally sleeved with a tension spring 22, and the bottom end of the second adjusting rod 19 is fixedly connected to a pressure rod 23, and the outer part of the pressure rod 23 is engaged with the outer part of the leveling shaft 9. The front and rear sides of the pressure rod 23 are rotatably connected to auxiliary wheels 24, and the top end of the first adjusting rod 17 is fixedly connected to a push rod 25, which connects the two first adjusting rods 17 to realize the common rotation of the first adjusting rod 17 in the front and rear positions. At the same time, the push rod 25 also provides a convenient operating handle for the user, making the operation of the fixed part more labor-saving and convenient, thereby improving the human-computer interaction of the device.

[0040] refer to Figure 6 A handrail 26 is fixedly connected to the top right side of the mobile frame 1. The user can move the mobile frame 1 by pulling the handrail 26, thereby driving the entire device to move on the road. A loading bucket 27 is detachably connected to the left side of the interior of the mounting slot 2. The bottom end of the loading bucket 27 is rotatably connected to a cleaning shaft 28. When the mobile frame 1 moves, the cleaning shaft 28 will first contact the ground and roll, sucking dust and other debris on the road and collecting them into the loading bucket 27, which helps to improve the cleanliness of the road environment and prevent debris from adversely affecting the laying of the maintenance film 4 and the maintenance of road prefabricated parts.

[0041] A maintenance process for prefabricated components for road and bridge construction, according to the above-mentioned maintenance device for prefabricated components for road and bridge construction, the specific method includes the following steps:

[0042] S1. Start: The user starts the water pump of the water tank 5 through the control terminal, and the water is sent to the through pipe 13 through the connecting pipe 15 and sprayed out by the water-saving nozzle 14.

[0043] S2. Cleaning: Pull the handrail 26 to drive the movable frame 1 forward, and the front cleaning shaft 28 rolls to absorb and collect road dust and debris into the loading bucket 27.

[0044] S3. Laying and spraying curing liquid: The leveling shaft 9 in the middle of the mobile frame 1 contacts the ground and rolls, pulling and leveling the curing film 4 to prevent wrinkles. At the same time, the leveling shaft 9 rotates to drive the camshaft disc 10, so that the swing rod 12 pushes the through pipe 13 and the water-saving nozzle 14 to swing, evenly spraying water to the curing film 4.

[0045] S4. Locking the film roll: When there is no need to lay the curing film roll 4, cut the film roll first, then swing the first adjusting rod 17 backward, and turn the second adjusting rod 19 through the engagement of the teeth, driving the pressure rod 23 to squeeze the leveling shaft 9, making it suspended in the air, locking the curing film roll 4 and the leveling shaft 9, making it convenient to push the movable frame 1, and preventing the curing film roll 4 from rolling and wasting in advance.

[0046] Working principle: When in use, the water tank 5 is controlled by the external control end to drive the water pumps at the front and rear positions to transport water to the connecting pipe 15, so that the water flows smoothly into the through pipe 13 through the connecting pipe 15 and is sprayed out from the water-saving nozzle 14. After that, the handrail rod 26 is pulled to drive the movable frame 1 to move. At this time, the cleaning shaft 28 at the front side of the movable frame 1 will first contact the ground and roll to absorb dust and other debris on the road and collect them into the loading bucket 27. Then, in the middle of the movable frame 1, the leveling shaft 9 will also contact the ground and roll, and pull the maintenance roll film 4 to level the maintenance roll film 4 laid on the ground to prevent wrinkles in the maintenance roll film 4. In addition, camshaft discs 10 are provided on the front and rear sides of the leveling shaft 9. The middle part of the camshaft disc 10 is a cam. When the leveling shaft 9 rotates, the leveling shaft 9 will synchronously drive the camshaft disc 10 to rotate. After the camshaft disc 10 rotates, the swing rod 12 in the camshaft disc 10 will slide on the cam through the roller at one end, so that the swing rod 12 drives the through pipe 13 and the water-saving nozzle 14 to swing synchronously with the first positioning roller 16 as the center under the push of the cam outer wheel expansion, so as to realize the area of water spraying onto the maintenance roll film 4, avoid the situation of excessive or insufficient local spraying, thereby ensuring the consistency of the road maintenance effect and further increasing the water absorption of the maintenance roll film 4.

[0047] When the user does not need to lay the maintenance film 4, the user can first cut the maintenance film 4, and then swing the first adjusting rod 17 backward. When the first adjusting rod 17 rotates, the teeth at the bottom will engage the teeth of the second adjusting rod 19, and the second adjusting rod 19 will turn. At this time, since the second positioning roller 18, the center of rotation of the second adjusting rod 19, is higher than the central axis position of the leveling shaft 9, when the second adjusting rod 19 turns, it will drive the pressure rod 23 to squeeze the outside of the leveling shaft 9. After the leveling shaft 9 is squeezed, the sliding block 8 squeezes the limit spring 7, allowing the leveling shaft 9 to be suspended in the air, so that the pressure rod 23 locks the maintenance film 4 and the leveling shaft 9, thereby making it convenient for the user to push the movable frame 1, ensuring that the maintenance film 4 remains fixed before the movable frame 1 reaches the designated laying position, reducing the waste of the maintenance film 4 caused by the rolling of the film roll shaft 3.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated component maintenance device for road and bridge construction, comprising a movable frame plate (1), characterized in that: The middle part of the movable frame (1) is provided with an installation slot (2), and the front and rear sides of the installation slot (2) are rotatably connected to a film roll shaft (3), and a curing film roll (4) is arranged on the outside of the film roll shaft (3). The left side of the top of the movable frame (1) is fixedly connected to a water tank (5), and the front and rear sides of the interior of the movable frame (1) are provided with leveling members for laying the curing film roll (4). The front and rear sides of the movable frame (1) are rotatably connected to a center roller (11), and the front and rear sides of the exterior of the center roller (11) are rotatably connected to a swing rod (12), and the left side of the bottom end adjacent to the swing rod (12) is fixedly connected to a through pipe (13), and a plurality of water-saving nozzles (14) are arranged on the outside of the through pipe (13). The front and rear sides of the water tank (5) are provided with connecting pipes (15), and the front and rear sides of the movable frame (1) are provided with fixing members for locking the curing film roll (4); The leveling member includes a slide groove (6), the slide groove (6) is opened on the front and rear sides of the interior of the movable frame (1), the top end of the interior of the slide groove (6) is fixedly connected to a limit spring (7), the bottom end of the limit spring (7) is fixedly connected to a sliding block (8), the middle part of the sliding block (8) is rotatably connected to a leveling shaft (9), the middle part of the sliding block (8) is movably connected to a camshaft disc (10), the outside of the sliding block (8) is slidably connected to the inside of the slide groove (6), and the right end of the swing rod (12) is rotatably connected to the outside of the camshaft disc (10); The fixing member includes a first positioning roller (16), the first positioning roller (16) is fixedly connected to the front and rear sides of the outside of the movable frame (1), the first positioning roller (16) is rotatably connected to the outside of a first adjusting rod (17), the front and rear sides of the outside of the movable frame (1) are fixedly connected to the second positioning roller (18), the second positioning roller (18) is rotatably connected to the outside of a second adjusting rod (19), the middle of the first adjusting rod (17) is fixedly connected to the second fixed roller (21), and the middle of the second adjusting rod (19) is fixedly connected to the first fixed roller (20). The second fixed roller (21) and the first fixed roller (20) are externally sleeved with a tension spring (22), the bottom end of the second adjusting rod (19) is fixedly connected to a pressure rod (23), the outside of the pressure rod (23) is engaged with the outside of the leveling shaft (9), and the front and rear sides of the pressure rod (23) are rotatably connected to auxiliary wheels (24), and the top end of the first adjusting rod (17) is fixedly connected to a push rod (25), and the first adjusting rod (17) is swung backward to make the second adjusting rod (19) turn through tooth engagement, thereby driving the pressure rod (23) to squeeze the leveling shaft (9) and make it suspended in the air.

2. A prefabricated component maintenance device for road and bridge construction according to claim 1, characterized in that: The bottom end of the connecting pipe (15) is fixedly connected to the front and rear sides of the water-saving sprinkler (14).

3. The prefabricated component maintenance device for road and bridge construction according to claim 1, characterized in that: The top teeth of the second adjusting rod (19) are meshed with the bottom teeth of the first adjusting rod (17).

4. A prefabricated component maintenance device for road and bridge construction according to claim 3, characterized in that: The side of the second adjusting rod (19) close to the water tank (5) is slidably connected to the front and rear sides of the movable frame (1), and the side of the first adjusting rod (17) close to the water tank (5) is slidably connected to the front and rear sides of the movable frame (1).

5. The prefabricated component maintenance device for road and bridge construction according to claim 1, characterized in that: A handrail (26) is fixedly connected to the right side of the top end of the movable frame plate (1).

6. The prefabricated component maintenance device for road and bridge construction according to claim 5, characterized in that: The left side of the interior of the mounting slot (2) is detachably connected to a loading bucket (27), and the bottom end of the loading bucket (27) is rotatably connected to a cleaning shaft (28).

7. A maintenance process for prefabricated parts used in road and bridge construction, characterized by: According to the prefabricated component maintenance device for road and bridge construction according to claim 6, the specific method comprises the following steps: S1. Start: The user starts the water pump of the water tank (5) through the control terminal, and the water is sent to the through pipe (13) through the connecting pipe (15) and sprayed out by the water-saving nozzle (14); S2, cleaning: pull the handrail (26) to drive the movable frame (1) forward, and the front cleaning shaft (28) rolls to absorb and collect road dust and debris into the loading bucket (27); S3, laying and spraying curing liquid: the leveling shaft (9) in the middle of the mobile frame (1) contacts the ground and rolls, pulling and leveling the curing film (4) to prevent wrinkles. At the same time, the leveling shaft (9) rotates to drive the cam shaft disc (10), so that the swing rod (12) pushes the through pipe (13) and the water-saving nozzle (14) to swing, and evenly sprays water to the curing film (4); S4. Locking the film roll: When there is no need to lay the curing film roll (4), first cut the film roll, then swing the first adjusting rod (17) backward, and make the second adjusting rod (19) turn by the teeth engagement, driving the pressure rod (23) to squeeze the leveling shaft (9) and make it suspended, locking the curing film roll (4) and the leveling shaft (9), making it easier to push the moving frame (1) and prevent the curing film roll (4) from rolling and wasting in advance.

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