A bending machine device for roofs

Abstract

This invention relates to the field of bending machine technology and discloses a bending machine device for roofs, including a main body assembly, a main body of the equipment, a horizontal moving guide rail fixed on one side of the main body, a front pressing device on the horizontal moving guide rail, a lead screw guide rail inside the main body, a lifting guide rail on the lead screw guide rail, a bending push rod on the lifting guide rail, and a bending assembly. The beneficial effects of this invention are: 1. Precisely counteracting the springback of the color steel plate, ensuring a 90° right-angle bend: During bending, the energy storage cylinder in the energy storage component of the bending assembly compresses air through the first piston. The compressed gas enters the compression cylinder of the shaping component through the compression air passage and the connecting groove; the subsequent moving rod, driven by the compressed gas, drives the extrusion plate to repeatedly impact the bending head, causing the transverse moving head to generate a strong impact on the color steel plate, effectively reducing springback, ensuring a precise bending angle of 90°, and improving the fit between the color steel plate and the roof column surface.

Description

Technical Field

[0001] This invention relates to the field of bending machine equipment technology, and in particular to a bending machine equipment for roofs. Background Technology

[0002] In the construction and maintenance of factory roofs, color steel sheets are widely used in the sealing structure construction around ventilation openings due to their advantages such as lightweight and high strength. The bending precision of the color steel sheets directly determines the sealing performance and structural stability of the roof. Currently, the industry mainly relies on traditional bending equipment or manual operation for bending color steel sheets for roofs. In practical applications, this has exposed many technical pain points that urgently need to be solved, seriously affecting the construction quality and safety of the roof in later use. First, the problem of insufficient bending precision is prominent, making it difficult to form a standard right-angle structure. On the one hand, traditional bending equipment lacks a dedicated positioning and angle control mechanism for roof corrugated steel panels, and the precision during manual operation is greatly affected by the operator's experience level. On the other hand, corrugated steel panels themselves have a certain degree of springback force, and existing bending solutions do not take this material characteristic into account. Even if the bending angle is preset to 90 degrees, after the bending operation is completed, the corrugated steel panel will rebound to a certain extent due to elastic recovery, causing the actual bending angle to deviate from the preset value and failing to achieve a standard 90-degree right angle. Under the combined effect of these two factors, the fit between the corrugated steel panel and the edge of the roof ventilation opening is greatly reduced, directly damaging the integrity of the roof sealing structure and creating a hidden danger for subsequent water leakage problems. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned existing bending machine devices for roofs, the present invention is proposed.

[0004] Therefore, the problem that this invention aims to solve is that the existing bending devices have insufficient bending accuracy, making it difficult to form a standard right-angle structure.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a bending machine device for roofs, comprising a main body component including a device body, a horizontal moving guide rail fixed on one side of the device body, a front pressing device provided on the horizontal moving guide rail, a lead screw guide rail provided inside the device body, a lifting guide rail provided on the lead screw guide rail, and a bending push rod provided on the lifting guide rail; A bending assembly is disposed on the bending push rod, including a bending member disposed on the bending push rod. The bending member includes a slide rod that slides within the bending push rod. A bending pressure head is fixed to the other end of the slide rod. A first spring is sleeved on the surface of the slide rod. One end of the first spring is fixed to one side of the bending push rod, and the other end is fixed within the bending pressure head. A push rod mechanism is fixed within the bending pressure head. A transverse pressure head is fixed to the output end of the push rod mechanism, and the transverse pressure head slides within the bending pressure head.

[0006] As a preferred embodiment of the bending machine device for roofs described in this invention, the bending assembly further includes an energy storage component disposed on the bending push rod. The energy storage component includes an energy storage cylinder fixed to one side of the bending push rod. A first piston is fixed to the end of the slide rod. An air inlet is provided inside the energy storage cylinder, and a compression air inlet is provided on one side of the air inlet.

[0007] As a preferred embodiment of the bending machine device for roofs described in this invention, the bending assembly further includes a valve component disposed within the energy storage cylinder. The valve component includes a valve housing fixed within the air inlet. A support frame is fixed within the valve housing. A second spring is fixed to one side of the support frame, and a sealing ball is fixed to the other end of the second spring.

[0008] In a preferred embodiment of the bending machine device for roofs described in this invention, a valve is provided inside the compressed air passage.

[0009] As a preferred embodiment of the bending machine device for roofs described in this invention, the bending assembly further includes a shaping component disposed on the bending push rod. The shaping component includes a compression cylinder fixed to one side of the bending push rod. A connecting groove is provided inside the compression cylinder, and the valve housing is fixed inside the connecting groove.

[0010] As a preferred embodiment of the bending machine device for roofs described in this invention, the shaping component further includes a movable rod that slides within the bending push rod. A second piston is fixed to the end of the movable rod. The second piston slides within the compression cylinder. An extrusion plate is fixed to the other end of the movable rod. A third spring is fixed to one side of the second piston. The other end of the third spring is fixed to the inner wall of the compression cylinder. A vent hole is provided on the compression cylinder.

[0011] In a preferred embodiment of the bending machine device for roofs described in this invention, the moving rod has a moving groove on its surface, a first slot and a second slot are provided on one side of the moving groove, a positioning block slides inside the bending push rod, a fourth spring is fixed inside the positioning block, the other end of the fourth spring is fixed inside the bending push rod, and a first chamfer and a second chamfer are provided on the surface of the positioning block.

[0012] In a preferred embodiment of the bending machine device for roofs described in this invention, a trigger rod slides inside the moving rod, a limit groove is formed inside the trigger rod, a limit rod is fixed inside the extrusion plate, the limit rod slides in the limit groove, a fifth spring is fixed inside the trigger rod, and the other end of the fifth spring is fixed inside the moving rod.

[0013] In a preferred embodiment of the bending machine device for roofs described in this invention, an extrusion block is fixed to the surface of the trigger rod, and an extrusion surface is formed on the surface of the extrusion block.

[0014] As a preferred embodiment of the bending machine device for roofs described in this invention, the main component further includes a drive caster wheel disposed on one side of the main body of the device, and a six-jaw chuck is disposed on one side of the drive caster wheel.

[0015] The beneficial effects of this invention are: 1. Precisely counteracts the rebound of the color steel sheet, ensuring a 90° right angle bend: During bending, the energy storage cylinder in the bending component compresses air through the first piston. The compressed gas enters the compression cylinder of the shaping component through the compression air passage and connecting groove. The subsequent moving rod, driven by the compressed gas, drives the extrusion plate to repeatedly impact the bending head, causing the transverse pressure head to generate a strong impact on the color steel sheet, effectively reducing the rebound and ensuring that the bending angle is accurately 90°, improving the fit between the color steel sheet and the roof column surface.

[0016] 2. High adaptability and stability, improving work efficiency: The push rod mechanism of the bending component can drive the horizontal pressure head to move closer to / away from the bending head, adapting to color steel plates of different widths; the drive casters of the main component facilitate the movement of the device on the roof, and the six-jaw chuck generates magnetism when energized to adhere to the roof surface, ensuring stable operation; at the same time, the automated drive structure such as the horizontal moving guide rail and the lead screw guide rail reduces manual intervention, improves the consistency and efficiency of batch operations, and adapts to the size requirements of the roof slope and ventilation opening. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a structural diagram of a bending machine device used for roofing.

[0018] Figure 2 This is a structural diagram of the lead screw guide rail of a bending machine device used for roofing.

[0019] Figure 3 This is a structural diagram of the push rod mechanism of a bending machine used for roofing.

[0020] Figure 4 This is a cross-sectional view of the accumulator cylinder of a bending machine device used for roofing.

[0021] Figure 5 For use as a bending machine device for roofs Figure 4 Enlarged view of the structure at point B in the middle.

[0022] Figure 6 For use as a bending machine device for roofs Figure 4 Enlarged view of the structure at point C.

[0023] Figure 7 This is a structural diagram of the moving rod of a bending machine device used for roofing.

[0024] Figure 8 For use as a bending machine device for roofs Figure 7 Enlarged view of the structure at point D.

[0025] Figure 9 For use as a bending machine device for roofs Figure 8 Sectional view of the structure at point AA.

[0026] Figure 10 This is a structural diagram of the trigger rod of a bending machine device used for roofing.

[0027] Figure 11 This is a structural diagram of the extrusion block of a bending machine device used for roofing.

[0028] In the diagram: Main component 1; Equipment body 11; Horizontal moving guide rail 12; Front clamping device 13; Lead screw guide rail 14; Lifting guide rail 15; Bending push rod 16; Bending assembly 2; Bending piece 21; Slide rod 211; Bending pressure head 212; First spring 213; Push rod mechanism 214; Lateral pressure head 215; Energy storage component 22; Energy storage cylinder 221; First piston 222; Air inlet 221-1; Compressed air inlet 221-2; Valve component 23; Valve shell 231; Support frame 232; Second spring 233; Sealing ball 234; Shaping component 2 4; Compression cylinder 241; Connecting groove 241-1; Moving rod 242; Second piston 243; Extrusion plate 244; Third spring 245; Vent hole 241-2; Moving groove 242-1; First slot 242-2; Second slot 242-3; Positioning block 246; Fourth spring 247; First chamfer 246-1; Second chamfer 246-2; Trigger rod 248; Limiting groove 248-1; Limiting rod 249; Fifth spring 2410; Extrusion block 2411; Extrusion surface 2411-1; Drive caster wheel 17; Six-jaw chuck 18. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1, referring to Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a bending machine device for roofs. The bending machine device for roofs includes a main body component 1, including a main body 11. A horizontal moving guide rail 12 is fixed on one side of the main body 11. A lead screw and a motor are installed in the horizontal moving guide rail 12. A front pressing device 13 is installed on the horizontal moving guide rail 12, so that the horizontal moving guide rail 12 can drive the front pressing device 13 to move along the direction of the lead screw, so that the front pressing device 13 can press the color steel plate on one side of the main body 11, so that the color steel plate is pressed against the roof column surface. A lead screw guide rail 14 is installed in the main body 11. A lifting guide rail 15 is installed on the lead screw guide rail 14. The lifting guide rail 15 can be driven by the lead screw guide rail 14 to move closer to or away from the main body 11. A bending push rod 16 is installed on the lifting guide rail 15. The bending push rod 16 drives the bending component 2 to squeeze the color steel plate at the position where it needs to be bent, thereby causing the color steel plate to bend.

[0033] Bending assembly 2, mounted on bending push rod 16, includes a bending member 21 mounted on bending push rod 16. The bending member 21 includes two slide rods 211 that slide within bending push rod 16. A bending pressure head 212 is fixed to the other end of each slide rod 211. A first spring 213 is sleeved on the surface of each slide rod 211. The first spring 213 is in a compressed state. One end of the first spring 213 is fixed to one side of bending push rod 16, and the other end is fixed inside bending pressure head 212. A push rod mechanism is fixed inside bending pressure head 212. The mechanism 214 has two push rod mechanisms 214 arranged opposite each other. The push rod mechanism 214 can be an electric push rod. The output end of the push rod mechanism 214 is fixed with a transverse pressure head 215. The transverse pressure head 215 slides inside the bending pressure head 212. A through groove is opened in the bending pressure head 212 so that the output end of the push rod mechanism 214 and the transverse pressure head 215 can slide inside the bending pressure head 212. By extending and retracting the output end of the push rod mechanism 214, the two transverse pressure heads 215 can move closer or further away from each other, thereby adapting to color steel plates of different widths.

[0034] The transverse pressure head 215 can press the color steel plate at the part that needs to be bent, thereby causing the color steel plate to bend. At this time, the first spring 213 is compressed, and the bending pressure head 212 moves towards the bending push rod 16 under the reaction force of the color steel plate.

[0035] Specifically, the bending assembly 2 also includes an energy storage component 22 disposed on the bending push rod 16. The energy storage component 22 includes an energy storage cylinder 221 fixed to one side of the bending push rod 16. The energy storage cylinder 221 generates compressed air, and a first piston 222 is fixed to the end of the slide rod 211. The first piston 222 slides inside the energy storage cylinder 221. An air inlet 221-1 is provided inside the energy storage cylinder 221, and a compression air inlet 221-2 is provided on one side of the air inlet 221-1.

[0036] When the transverse pressure head 215 presses the part of the color steel plate that needs to be bent, the slide rod 211 begins to move into the energy storage cylinder 221, so that the first piston 222 compresses the air in the energy storage cylinder 221, and the air is compressed into the air intake 221-1 and the compression 221-2.

[0037] Specifically, the bending assembly 2 also includes a valve component 23 disposed within the energy storage cylinder 221. The valve component 23 includes a valve housing 231 fixed within the air inlet duct 221-1. A support frame 232 is fixed within the valve housing 231. A second spring 233 is fixed on one side of the support frame 232. The second spring 233 is in a compressed state. A sealing ball 234 is fixed at the other end of the second spring 233. The sealing ball 234 can block the airflow channel within the valve housing 231, preventing the compressed air in the energy storage cylinder 221 from pushing the sealing ball 234 open and preventing the compressed air from flowing out of the valve housing 231 at this location. When the external air pressure is greater than the air pressure within the energy storage cylinder 221, the external air pressure can push the sealing ball 234, causing the sealing ball 234 to compress the second spring 233, thereby allowing the valve housing 231 to circulate. This allows external air to enter the energy storage cylinder 221 through the valve housing 231, thereby replenishing the energy storage cylinder 221 with air.

[0038] Specifically, a valve component 23 is provided in the compressed air passage 221-2. The sealing ball 234 of the valve component 23 can be moved away under the push of the compressed gas in the accumulator cylinder 221, thereby allowing the valve shell 231 to flow and the compressed gas in the accumulator cylinder 221 to flow out from the compressed air passage 221-2.

[0039] Example 2, refer to Figures 3-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0040] Specifically, the bending assembly 2 also includes a shaping component 24 disposed on the bending push rod 16. The shaping component 24 includes a compression cylinder 241 fixed to one side of the bending push rod 16. A connecting groove 241-1 is provided in the compression cylinder 241. A valve housing 231 is fixed in the connecting groove 241-1. The connection groove 241-1 allows the compressed gas in the energy storage cylinder 221 to flow from the compression passage 221-2 into the compression cylinder 241, thereby filling the compression cylinder 241 with compressed gas. Due to the valve component 23 in the compression passage 221-2, the high-pressure gas in the compression cylinder 241 cannot enter the energy storage cylinder 221.

[0041] Specifically, the shaping component 24 also includes a movable rod 242 that slides within the bending push rod 16. A second piston 243 is fixed to one end of the movable rod 242 and slides within the compression cylinder 241. An extrusion disc 244 is fixed to the other end of the movable rod 242. The extrusion disc 244 impacts the bending head 212, causing the bending head 212 to vibrate violently. This, in turn, causes the transverse pressure head 215 on the bending head 212 to vibrate violently, thereby causing the transverse pressure head 215 to exert force on the color steel plate. The instantaneous strong impact enhances the bending effect. A third spring 245 is fixed to one side of the second piston 243. The third spring 245 is in its normal state, and the other end of the third spring 245 is fixed to the inner wall of the compression cylinder 241. The compression cylinder 241 is provided with a vent hole 241-2. When the second piston 243 moves to the side of the vent hole 241-2, the compressed gas in the compression cylinder 241 can be released, so that the internal air pressure of the compression cylinder 241 can return to the initial state after completing a working process.

[0042] Specifically, the surface of the moving rod 242 has a moving groove 242-1. A first slot 242-2 and a second slot 242-3 are formed on one side of the moving groove 242-1. There are multiple first slots 242-2 and second slots 242-3, and they are equidistantly arranged. A positioning block 246 slides inside the bending push rod 16. There are two positioning blocks 246 arranged side-by-side. A fourth spring 247 is fixed inside the positioning block 246. The fourth spring 247 is in a compressed state, and its other end is fixed inside the bending push rod 16. The surface of the positioning block 246 has a first chamfer 246-1 and a second chamfer 246-2. In the illustrated state, the positioning block 246 in the first slot 242-2 has its first chamfer 246-1... Both chamfer 246-1 and chamfer 246-2 are located at the edge of the first slot 242-2. At this time, the positioning block 246 does not constitute a limiting measure for the moving rod 242. The other positioning block 246 slides in the moving slot 242-1. Both positioning blocks 246 are in contact with the edge of the moving slot 242-1, so that the positioning block 246 can limit the moving rod 242, making the moving rod 242 unable to rotate. When the first chamfer 246-1 and the second chamfer 246-2 of the positioning block 246 are completely inserted into the first slot 242-2 or the second slot 242-3, the positioning block 246 can limit the moving rod 242 in this state, so that the moving rod 242 cannot move towards the bending head 212.

[0043] When the lead screw guide 14 drives the bending head 212 and the transverse head 215 to bend the color steel plate, the first spring 213 is compressed, and the bending head 212 moves closer to the bending push rod 16. At this time, the bending head 212 squeezes the extrusion plate 244 at the end of the moving rod 242, so that the moving rod 242 drives the second piston 243 to further compress the gas in the compression cylinder 241.

[0044] During this process, the setting of the first chamfer 246-1 allows the moving rod 242 to move smoothly into the compression cylinder 241 without being limited by the positioning block 246.

[0045] Specifically, a trigger rod 248 slides inside the moving rod 242, and a limiting groove 248-1 is formed inside the trigger rod 248. A limiting rod 249 is fixed inside the extrusion plate 244. The limiting rod 249 slides inside the limiting groove 248-1. Since the limiting rod 249 limits the trigger rod 248, a fifth spring 2410 is fixed inside the trigger rod 248. The fifth spring 2410 is in a compressed state, and the other end of the fifth spring 2410 is fixed inside the moving rod 242.

[0046] Example 3, referring to Figures 1-11 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0047] Specifically, a pressing block 2411 is fixed on the surface of the trigger rod 248. The pressing block 2411 has a pressing surface 2411-1 on its surface. There are multiple pressing blocks 2411, which are equidistantly arranged. When the trigger rod 248 is pressed into the pressing plate 244, the pressing block 2411 moves from the side of the first slot 242-2 to the side of the second slot 242-3. In the current state, the pressing block 2411 supports one of the positioning blocks 246, so that the positioning block 246 can slide out of the first slot 242-2. The setting of the pressing surface 2411-1 facilitates the pressing block 2411 to push the positioning block 246. At this time, the distance between adjacent pressing blocks 2411 is equal to the distance between adjacent first slots 242-2.

[0048] Specifically, the main component 1 also includes a drive caster 17 located on one side of the main body 11 of the equipment. The drive caster 17 can move the equipment on the roof. A six-jaw chuck 18 is provided on one side of the drive caster 17. The six-jaw chuck 18 plays a fixing role. When the magnets around it are energized during operation, they generate magnetic force and firmly adhere to the working surface such as the roof color steel plate, ensuring that the device remains stable during operation and laying a stable foundation for subsequent operations.

[0049] When in use, move the main body 11 of the equipment to the side of the roof column, so that the front pressing device 13 presses the color steel plate onto the roof column. At this time, the screw guide rail 14 drives the lifting guide rail 15 to move, so that the bending push rod 16, which is adjusted to a suitable height by the lifting guide rail 15, moves towards the color steel plate.

[0050] The bending push rod 16 can drive the bending pressure head 212 and the transverse pressure head 215 to squeeze the color steel plate at the position where it needs to be bent, thereby bending the color steel plate. At this time, the first spring 213 is compressed, and the bending pressure head 212 moves towards the bending push rod 16 under the reaction force of the color steel plate. The slide rod 211 begins to move into the energy storage cylinder 221, so that the first piston 222 compresses the air in the energy storage cylinder 221, and the air is compressed into the air intake 221-1 and the compression duct 221-2.

[0051] Compressed gas from compressed air passage 221-2 enters through connecting groove 241-1 of compressed cylinder 241, thereby storing compressed gas in compressed cylinder 241.

[0052] At the same time, the bending head 212 will squeeze the extrusion plate 244 at the end of the moving rod 242, so that the moving rod 242 drives the second piston 243 to further compress the gas in the compression cylinder 241.

[0053] At the same time, the trigger rod 248 is fully pressed into the extrusion plate 244. At this time, the extrusion block 2411 moves from the first slot 242-2 side to the second slot 242-3 side, supporting the positioning block 246 in the second slot 242-3. At this time, the positioning block 246 can be engaged in the first slot 242-2, thereby limiting the moving rod 242 and preventing the moving rod 242 from moving towards the bending head 212.

[0054] At this point, the initial bending is complete. The lead screw guide 14 drives the bending push rod 16 away from the color steel plate. Under the reset force of the first spring 213, the transverse pressure head 215 remains in close contact with the color steel plate. As the bending push rod 16 drives the moving rod 242 away from the bending pressure head 212, the trigger rod 248 moves out of the moving rod 242 under the reset force of the fifth spring 2410. This causes the extrusion block 2411 to move from the second slot 242-3 to the first slot 242-2. At this time, the extrusion block 2411 will press against the positioning block 246, releasing the positioning block 246 from limiting the first slot 242-2. This causes the moving rod 242 to be pushed by the powerful compressed gas in the compression cylinder 241. The moving rod 242 drives the extrusion plate 244 to impact the bending pressure head 212, thereby causing the bending pressure head 212 to drive the transverse pressure head 215 to impact the color steel plate, thus enhancing the bending effect of the color steel plate.

[0055] As the distance between the bending pressure head 212 and the bending push rod 16 continues to increase, the moving rod 242 can drive the extrusion plate 244 to impact the bending pressure head 212 multiple times, thereby consolidating the bending effect of the color steel plate and reducing the springback of the color steel plate after bending.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A bending machine device for roofs, characterized in that: include, The main component (1) includes a main body (11), a horizontal moving guide rail (12) is fixed on one side of the main body (11), a front pressing device (13) is provided on the horizontal moving guide rail (12), a screw guide rail (14) is provided inside the main body (11), a lifting guide rail (15) is provided on the screw guide rail (14), and a bending push rod (16) is provided on the lifting guide rail (15). A bending assembly (2) is disposed on the bending push rod (16) and includes a bending member (21) disposed on the bending push rod (16). The bending member (21) includes a slide rod (211) that slides within the bending push rod (16). A bending pressure head (212) is fixed at the other end of the slide rod (211). A first spring (213) is sleeved on the surface of the slide rod (211). One end of the first spring (213) is fixed to one side of the bending push rod (16), and the other end is fixed within the bending pressure head (212). A push rod mechanism (214) is fixed within the bending pressure head (212). A transverse pressure head (215) is fixed at the output end of the push rod mechanism (214). The transverse pressure head (215) slides within the bending pressure head (212). The bending assembly (2) further includes an energy storage component (22) disposed on the bending push rod (16). The energy storage component (22) includes an energy storage cylinder (221) fixed to one side of the bending push rod (16). A first piston (222) is fixed to the end of the slide rod (211). An air inlet (221-1) is provided in the energy storage cylinder (221), and a compression air inlet (221-2) is provided on one side of the air inlet (221-1). The bending assembly (2) also includes a valve component (23) disposed in the energy storage cylinder (221). The valve component (23) includes a valve housing (231) fixed in the air intake (221-1). A support frame (232) is fixed inside the valve housing (231). A second spring (233) is fixed on one side of the support frame (232), and a sealing ball (234) is fixed on the other end of the second spring (233). The bending assembly (2) further includes a shaping component (24) disposed on the bending push rod (16). The shaping component (24) includes a compression cylinder (241) fixed to one side of the bending push rod (16) and a moving rod (242) sliding within the bending push rod (16). A connecting groove (241-1) is provided in the compression cylinder (241), and the valve housing (231) is fixed within the connecting groove (241-1). The end of the moving rod (242) A second piston (243) is fixedly mounted and slides within the compression cylinder (241). A compression disc (244) is fixed to the other end of the moving rod (242). A third spring (245) is fixed to one side of the second piston (243), and the other end of the third spring (245) is fixed to the inner wall of the compression cylinder (241). A vent hole (241-2) is provided on the compression cylinder (241). A surface preparation method is provided on the surface of the moving rod (242). A movable slot (242-1) has a first slot (242-2) and a second slot (242-3) on one side. A positioning block (246) slides inside the bending push rod (16). A fourth spring (247) is fixed inside the positioning block (246). The other end of the fourth spring (247) is fixed inside the bending push rod (16). A first chamfer (246-1) and a second chamfer (246-3) are formed on the surface of the positioning block (246). 246-2), a trigger rod (248) slides inside the moving rod (242), a limit groove (248-1) is opened inside the trigger rod (248), a limit rod (249) is fixed inside the extrusion plate (244), the limit rod (249) slides in the limit groove (248-1), a fifth spring (2410) is fixed inside the trigger rod (248), and the other end of the fifth spring (2410) is fixed inside the moving rod (242).

2. The bending machine device for roofs as described in claim 1, characterized in that: A valve (23) is provided inside the compressed air passage (221-2).

3. The bending machine device for roofs as described in claim 1, characterized in that: The trigger rod (248) has a pressing block (2411) fixed on its surface, and the pressing block (2411) has a pressing surface (2411-1) on its surface.

4. The bending machine device for roofs as described in any one of claims 1 to 3, characterized in that: The main component (1) also includes a drive universal wheel (17) disposed on one side of the device body (11), and a six-jaw chuck (18) is disposed on one side of the drive universal wheel (17).

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