Steel curling device for machining

Abstract

The invention provides a steel curling device for machining, and belongs to the technical field of steel machining, the steel curling device comprises a bottom plate, a base, a round press roller, a driving assembly and a side pressing assembly, a top plate is fixedly arranged on the edge of the upper portion of the bottom plate through a vertical rod, and the base is fixedly installed on the upper portion of the bottom plate; a semicircular groove is formed in the upper surface of the base, the circular pressing roller is arranged above the base, and the driving assembly is installed on the top plate and used for driving the circular pressing roller to move up and down. And when the circular compression roller moves downwards, the straight steel plate at the upper part of the base is pressed into the semicircular groove and is driven to be bent into a U-shaped structure. Compared with the prior art, automatic curling forming of the steel plate can be achieved, the steel plate does not need to be clamped in the curling process of the steel plate, and therefore the problem that the size of the curled and formed steel plate cannot meet the requirement due to the fact that the clamping force is too large or too small is solved, and the steel plate curling device has the advantage of being good in steel plate curling effect.

Description

Technical Field

[0001] The invention belongs to the technical field of steel processing, and in particular relates to a steel curling device for mechanical processing. Background Art

[0002] At present, the processing of circular cylindrical steel plates involves processes such as casting, cutting and curling. The curling of the steel plates is to use a coiling machine to curl the straight steel plates into a circular cylindrical structure.

[0003] In the prior art, when the winding machine is working, it is necessary to use a clamping mechanism to clamp one end of the straight steel plate on the outside of the reel, and then use a driving mechanism to drive the reel and the clamping mechanism to rotate synchronously. When the reel rotates, it pulls one end of the straight steel plate, so that the straight steel plate is bent into a circular structure outside the reel. This steel plate curling method is relatively traditional. When the clamping mechanism is used to clamp one end of the steel plate, the clamping force is often not accurately controlled. When the clamping force is too large, it is easy to cause local deformation of the steel plate. When the clamping force is too small, the steel plate will slide relative to the reel during the curling process, so that the size of the final curled circular steel plate does not meet the requirements, resulting in poor curling effect. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a steel curling device for mechanical processing.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A steel material curling device for mechanical processing comprises a bottom plate, a base, a circular pressing roller, a driving assembly and a side pressing assembly. The upper edge of the bottom plate is fixed with a top plate through a vertical rod. The base is fixedly mounted on the upper portion of the bottom plate, and a semicircular groove is provided on the upper surface of the base. The circular pressing roller is arranged above the base. The driving assembly is mounted on the top plate and is used to drive the circular pressing roller to move up and down. When the circular pressing roller moves down, it presses the straight steel plate on the upper part of the base into the semicircular groove and drives the straight steel plate to bend into a U-shaped structure. The side pressure assembly is provided with two groups, and the two groups of the side pressure assembly are respectively arranged on the opposite sides of the semicircular groove. When the straight steel plate is bent into a U-shaped structure, the two groups of the side pressure assembly are used to apply lateral pressure to the steel plate with the U-shaped structure, so that the steel plate with the U-shaped structure is covered on the outside of the circular pressure roller and forms a circular structure.

[0006] As a further improvement of the present invention: an end seat is fixedly provided at one end of the circular pressure roller, and the driving assembly includes a hydraulic cylinder and a piston rod. The hydraulic cylinder is fixedly installed on the upper part of the top plate, one end of the piston rod is connected to the output end of the hydraulic cylinder, and the other end is connected to the end seat.

[0007] As a further improvement of the present invention: an annular stopper is fixedly arranged on the side wall of the piston rod, an end of the piston rod away from the output end of the hydraulic cylinder passes through the end seat and movably cooperates with the end seat, and the annular stopper is connected to the end seat through an elastic member. The side pressure assembly includes a second rack, a slide bar, a third rack, a circular pressure bar, a second gear and a bracket plate. The sliding rod is vertically distributed and slidably installed on the bottom of the top plate, and a support plate is slidably arranged on the side wall of the sliding rod, and a support rod is fixedly arranged on one side of the support plate, one end of the circular pressure rod is rotatably connected to the support rod, and the other end extends to the side edge of the semicircular groove and is distributed along the length direction of the semicircular groove. The bracket plate is fixedly installed on the upper part of the bottom plate, and the second gear is rotatably arranged on one side of the bracket plate, one end of the third rack is fixedly connected to the sliding rod, and the other end extends horizontally to one side of the second gear and meshes with the second gear, and the second rack is vertically distributed and fixedly arranged on the side wall of the piston rod and can mesh with the second gear.

[0008] As a further improvement of the present invention: the elastic member is a spring or a metal spring.

[0009] As a further improvement of the present invention: the side wall of the slide bar is fixedly provided with a vertically distributed first guide rail, and the end of the support plate is provided with a first guide rail groove adapted to the first guide rail. A second guide rail is fixedly arranged at the bottom of the top plate, and a second guide rail groove matched with the second guide rail is opened at the upper end of the slide bar.

[0010] As a further improvement of the present invention: a notch is provided on the circumferential side wall of the circular pressure roller along the length direction, a screw is rotatably arranged at an eccentric position inside the circular pressure roller, one end of the screw extends to the outside of the circular pressure roller and is fixedly provided with a first gear, A threaded sleeve is sleeved on the outside of the screw rod, a push plate is fixedly arranged on the outer wall of the threaded sleeve, one end of the push plate away from the threaded sleeve extends from the slot to the outside of the circular pressure roller, and a vertically distributed first rack is also fixedly arranged on the bottom of the top plate, and the first rack can mesh with the first gear.

[0011] As a further improvement of the present invention: an L-shaped limit block is fixedly provided on the upper part of the base at the side of the semicircular groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In the embodiment of the present invention, when the steel plate needs to be curled, the straight steel plate to be curled can be placed on the upper part of the base, and the middle part of the straight steel plate is located above the semicircular groove. Then, the circular pressing roller is driven downward by the driving component. When the circular pressing roller moves downward, it acts on the middle part of the straight steel plate, thereby driving the middle part of the straight steel plate to deform into the semicircular groove. When the bottom of the straight steel plate is fully in contact with the inner wall of the semicircular groove, a U-shaped structure can be formed. At this time, lateral pressure is applied to the steel plate of the U-shaped structure by two sets of lateral pressure components, so that the U The shaped steel plate is further bent and wrapped around the outside of the circular pressure roller, thereby forming a circular structure outside the circular pressure roller to achieve curling of the straight steel plate. After the steel plate is curled, the driving assembly drives the circular pressure roller to move upward, and then brings the circular structured steel plate away from the semicircular groove. Compared with the prior art, it can achieve automatic curling of the steel plate, and there is no need to clamp the steel plate during the curling process. Therefore, there is no problem that the size of the curled steel plate does not meet the requirements due to excessive or insufficient clamping force, and it has the advantage of good steel plate curling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of the structure of a steel curling device used for mechanical processing Figure 1 ; Figure 2 A schematic diagram of the structure of a steel curling device used for mechanical processing Figure 2 ; Figure 3 for Figure 1 A magnified schematic diagram of the middle A area; Figure 4 for Figure 2 A magnified schematic diagram of the middle B area; In the figure: 10-bottom plate, 101-vertical pole, 102-top plate, 103-first rack, 20-base, 201-semicircular groove, 202-L-shaped limit block, 30-circular pressure roller, 301-end seat, 302-threaded sleeve, 303-screw, 304-push plate, 305-notch, 306-first gear, 40-drive assembly, 401-hydraulic cylinder, 402-piston rod, 403-annular stopper, 404-elastic member, 50-side pressure assembly, 501-second rack, 502-slide rod, 503-third rack, 504-circular pressure rod, 505-first guide rail, 506-second gear, 507-support rod, 508-bracket plate, 509-support plate. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be described clearly and completely below 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 creative work are within the scope of protection of the present invention.

[0016] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] The present invention is further explained below in conjunction with specific implementation modes.

[0019] See also Figure 1 as well as Figure 2The present embodiment provides a steel material curling device for machining, comprising a bottom plate 10, a base 20, a circular pressing roller 30, a driving assembly 40 and a side pressing assembly 50. The top edge of the bottom plate 10 is fixedly provided with a top plate 102 through a vertical rod 101. The base 20 is fixedly installed on the top of the bottom plate 10. A semicircular groove 201 is provided on the upper surface of the base 20. The circular pressing roller 30 is arranged above the base 20. The driving assembly 40 is installed on the top plate 102 to drive the circular pressing roller 30 to rotate. The roller 30 moves up and down, and when the circular pressure roller 30 moves down, it presses the straight steel plate on the upper part of the base 20 into the semicircular groove 201 and drives the straight steel plate to bend into a U-shaped structure. The side pressure assembly 50 is provided with two groups, and the two groups of side pressure assemblies 50 are respectively arranged on the opposite sides of the semicircular groove 201. When the straight steel plate is bent into the U-shaped structure, the two groups of side pressure assemblies 50 are used to apply lateral pressure to the steel plate with the U-shaped structure, so that the steel plate with the U-shaped structure is covered on the outside of the circular pressure roller 30 and forms a circular structure.

[0020] When the steel plate needs to be curled, the straight steel plate to be curled can be placed on the upper part of the base 20, and the middle part of the straight steel plate is located above the semicircular groove 201. Then, the driving component 40 is used to drive the circular pressure roller 30 to move downward. When the circular pressure roller 30 moves downward, it acts on the middle part of the straight steel plate, thereby driving the middle part of the straight steel plate to deform toward the inside of the semicircular groove 201. When the bottom of the straight steel plate is fully in contact with the inner wall of the semicircular groove 201, a U-shaped structure can be formed. At this time, two sets of side pressure components 50 are used to apply lateral pressure to the steel plate with the U-shaped structure, so that the U-shaped steel plate is further bent and wrapped around the outside of the circular pressure roller 30, thereby forming a circular structure outside the circular pressure roller 30, and realizing the curling of the straight steel plate. After the steel plate is curled, the driving component 40 drives the circular pressure roller 30 to move upward, thereby bringing the steel plate with the circular structure away from the semicircular groove 201.

[0021] See also Figure 1 as well as Figure 2 In one embodiment, an end seat 301 is fixedly provided at one end of the circular pressure roller 30, and the driving assembly 40 includes a hydraulic cylinder 401 and a piston rod 402. The hydraulic cylinder 401 is fixedly installed on the upper part of the top plate 102, and one end of the piston rod 402 is connected to the output end of the hydraulic cylinder 401, and the other end is connected to the end seat 301.

[0022] After placing the straight steel plate on the upper part of the base 20, the piston rod 402 can be extended through the hydraulic cylinder 401, and then the circular pressure roller 30 can be driven to move downward through the end seat 301. When the circular pressure roller 30 moves downward, it acts on the middle part of the straight steel plate and drives the straight steel plate to bend and deform into the semicircular groove 201.

[0023] See also Figure 1 , Figure 2 as well as Figure 4 In one embodiment, an annular stopper 403 is fixedly provided on the side wall of the piston rod 402, and the end of the piston rod 402 away from the output end of the hydraulic cylinder 401 passes through the end seat 301 and is movably matched with the end seat 301, and the annular stopper 403 is connected to the end seat 301 through an elastic member 404, and the side pressure assembly 50 includes a second rack 501, a slide bar 502, a third rack 503, a circular pressure bar 504, a second gear 506 and a bracket plate 508, and the slide bar 502 is vertically distributed and slidably installed at the bottom of the top plate 102, and a support plate 509 is slidably provided on the side wall of the slide bar 502, and one side of the support plate 509 A support rod 507 is fixedly installed, one end of the circular pressure rod 504 is rotatably connected to the support rod 507, and the other end extends to the side edge of the semicircular groove 201 and is distributed along the length direction of the semicircular groove 201, the bracket plate 508 is fixedly installed on the upper part of the base plate 10, and the second gear 506 is rotatably set on one side of the bracket plate 508, one end of the third rack 503 is fixedly connected to the sliding rod 502, and the other end extends horizontally to one side of the second gear 506 and meshes with the second gear 506, and the second rack 501 is vertically distributed and fixed on the side wall of the piston rod 402 and can mesh with the second gear 506.

[0024] After the circular pressing roller 30 presses the middle part of the straight steel plate into the semicircular groove 201 so that the straight steel plate is bent into a U-shaped structure, as the hydraulic cylinder 401 drives the piston rod 402 to continue to extend, the piston rod 402 moves downward compared to the end seat 301, the elastic member 404 is compressed, and the circular pressing roller 30 is pressed and remains stationary in the semicircular groove 201. When the piston rod 402 continues to extend, it drives the second rack 501 to continue to move downward, and the second rack 501 and the second gear 506 enter a meshing state, thereby driving the second gear 506 to rotate. When the second gear 506 rotates, it drives the slide bar 502 to slide along the bottom of the top plate 102 through its meshing action with the third rack 503, and the slide bar 50 When sliding, the support plate 509, the support rod 507 and the circular pressure rod 504 are driven to move horizontally. When the circular pressure rod 504 moves horizontally, it acts on the vertical part of the U-shaped steel plate, thereby applying lateral pressure to the vertical part of the U-shaped steel plate. When the vertical part of the U-shaped steel plate is subjected to the lateral pressure from the circular pressure rod 504, it bends toward the circular pressure roller 30. At the same time, the support plate 509 is forced to slide up along the side wall of the sliding rod 502, and the circular pressure rod 504 moves upward along the outer wall of the steel plate and rotates relative to the support rod 507, so that the circular pressure rod 504 is in an upward rolling state on the outer wall of the steel plate, thereby rolling the vertical part of the U-shaped steel plate onto the outer wall of the circular pressure roller 30, so that the U-shaped steel plate is completely bent into a circular structure.

[0025] In one embodiment, the elastic member 404 may be a spring or a metal spring, which is not limited here.

[0026] See also Figure 4 In one embodiment, a vertically distributed first guide rail 505 is fixedly provided on the side wall of the slide bar 502, a first guide rail groove (not shown in the figure) adapted to the first guide rail 505 is opened at the end of the support plate 509, a second guide rail (not shown in the figure) is fixedly provided at the bottom of the top plate 102, and a second guide rail groove (not shown in the figure) adapted to the second guide rail is opened at the upper end of the slide bar 502.

[0027] See also Figure 1 , 3 as well as Figure 4 In one embodiment, a slot 305 is provided on the circumferential side wall of the circular pressure roller 30 along the length direction, a screw 303 is rotatably arranged at an eccentric position inside the circular pressure roller 30, one end of the screw 303 extends to the outside of the circular pressure roller 30 and is fixedly provided with a first gear 306, a threaded sleeve 302 is sleeved on the outside of the screw 303, a push plate 304 is fixedly provided on the outer wall of the threaded sleeve 302, one end of the push plate 304 away from the threaded sleeve 302 extends from the slot 305 to the outside of the circular pressure roller 30, and a vertically distributed first rack 103 is also fixedly provided at the bottom of the top plate 102, and the first rack 103 can mesh with the first gear 306.

[0028] After the straight steel plate is bent into a circular structure outside the circular pressing roller 30, the hydraulic cylinder 401 drives the piston rod 402 to move upward, and the piston rod 402 drives the second rack 501 to move upward, and the elastic member 404 is gradually stretched. At this time, the second rack 501 and the second gear 506 are meshed in the opposite direction, and the second gear 506 is driven to rotate in the opposite direction. The second gear 506 and the third rack 503 are meshed in the opposite direction, and the slide bar 502 is driven to slide in the opposite direction along the bottom of the top plate 102. The slide bar 502 drives the circular pressing rod 504 to move in the opposite direction and away from the circular pressing roller 3 through the support plate 509 and the support rod 507. 0, realize the reset of the circular pressure rod 504. When the circular pressure rod 504 is reset, the elastic member 404 is stretched to a certain extent and then pulls the end seat 301 to drive the circular pressure roller 30 to move upward. The circular pressure roller 30 takes the circular steel plate covered on its outside away from the inside of the semicircular groove 201. When the circular steel plate moves out of the semicircular groove 201, the first gear 306 on the outside of the circular pressure roller 30 and the first rack 103 at the bottom of the top plate 102 enter into a meshing state. The first rack 103 drives the first gear 306 to rotate, and then drives the screw 303 to rotate. When the screw 303 rotates, it engages with the threaded sleeve 3 The threaded sleeve 302 is driven by the threaded cooperation of the screw 303 to move along the length direction of the screw rod 303. When the threaded sleeve 302 moves, it drives the push plate 304 to slide along the inside of the slot 305. When the push plate 304 slides, the circular steel plate covered on the outside of the circular pressing roller 30 is pushed out from one end of the circular pressing roller 30, so as to realize the automatic unloading of the circular steel plate. After the unloading of the circular steel plate is completed, the staff can place another group of straight steel plates to be curled on the upper part of the base 20 and make the middle part of the straight steel plate located above the semicircular groove 201. Then the hydraulic cylinder 401 drives the piston rod 402 to extend again, and the piston rod 402 drives the circular The pressure roller 30 moves downward, thereby driving the first gear 306 to move downward, and through the reverse meshing action of the first gear 306 and the first rack 103, the first gear 306 and the screw 303 are driven to rotate in the opposite direction, and the reverse thread cooperation of the screw 303 and the threaded sleeve 302 is used to drive the push plate 304 to slide in the opposite direction along the inside of the groove 305, thereby realizing the resetting of the push plate 304. After the push plate 304 is reset, the first gear 306 is disengaged from the first rack 103, and the circular pressure roller 30 presses the middle part of another group of straight steel plates into the semicircular groove 201, thereby realizing the curling forming of another group of straight steel plates.

[0029] See also Figure 1 In one embodiment, an L-shaped limit block 202 is fixedly provided on the upper portion of the base 20 at a side position of the semicircular groove 201 .

[0030] When the staff places the straight steel plate to be curled on the upper part of the base 20, the corner position of the straight steel plate can be abutted against the inner side of the L-shaped limit block 202. The L-shaped limit block 202 can be used to limit the straight steel plate so that the middle part of the straight steel plate can be accurately located above the semicircular groove 201.

[0031] In the embodiment of the present invention, when the steel plate needs to be curled, the straight steel plate to be curled can be placed on the upper part of the base 20, and the middle part of the straight steel plate is located above the semicircular groove 201. Then, the driving component 40 is used to drive the circular pressing roller 30 to move downward. When the circular pressing roller 30 moves downward, it acts on the middle part of the straight steel plate, thereby driving the middle part of the straight steel plate to deform into the semicircular groove 201. When the bottom of the straight steel plate is fully in contact with the inner wall of the semicircular groove 201, a U-shaped structure can be formed. At this time, two sets of side pressure components 50 are used to apply lateral pressure to the steel plate with the U-shaped structure. , so that the U-shaped steel plate is further bent and wrapped around the outside of the circular pressing roller 30, thereby forming a circular structure outside the circular pressing roller 30, realizing the curling processing of the straight steel plate. After the steel plate is curled, the driving component 40 drives the circular pressing roller 30 to move upward, and then brings the circular structured steel plate away from the semicircular groove 201. Compared with the prior art, it can realize automatic curling of the steel plate, and there is no need to clamp the steel plate during the curling process, so there is no problem that the size of the curled steel plate does not meet the requirements due to excessive or insufficient clamping force, and it has the advantage of good steel plate curling effect.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel material curling device for mechanical processing, characterized in that: It includes a bottom plate, a base, a circular pressure roller, a driving assembly and a side pressure assembly. The upper edge of the bottom plate is fixed with a top plate through a vertical rod. The base is fixedly mounted on the upper portion of the bottom plate, and a semicircular groove is provided on the upper surface of the base. The circular pressing roller is arranged above the base. The driving assembly is mounted on the top plate and is used to drive the circular pressing roller to move up and down. When the circular pressing roller moves down, it presses the straight steel plate on the upper part of the base into the semicircular groove and drives the straight steel plate to bend into a U-shaped structure. The side pressure assembly is provided with two groups, and the two groups of the side pressure assembly are respectively arranged on the opposite sides of the semicircular groove. When the straight steel plate is bent into a U-shaped structure, the two groups of the side pressure assembly are used to apply lateral pressure to the steel plate with the U-shaped structure, so that the steel plate with the U-shaped structure is covered on the outside of the circular pressure roller and forms a circular structure.

2. A steel material curling device for mechanical processing according to claim 1, characterized in that: An end seat is fixedly provided at one end of the circular pressure roller, and the driving assembly includes a hydraulic cylinder and a piston rod. The hydraulic cylinder is fixedly installed on the upper part of the top plate, one end of the piston rod is connected to the output end of the hydraulic cylinder, and the other end is connected to the end seat.

3. A steel material curling device for mechanical processing according to claim 2, characterized in that: An annular stopper is fixedly arranged on the side wall of the piston rod, and one end of the piston rod away from the output end of the hydraulic cylinder passes through the end seat and movably cooperates with the end seat. The annular stopper is connected to the end seat through an elastic member. The side pressure assembly includes a second rack, a slide bar, a third rack, a circular pressure bar, a second gear and a bracket plate. The sliding rod is vertically distributed and slidably installed on the bottom of the top plate, and a support plate is slidably arranged on the side wall of the sliding rod, and a support rod is fixedly arranged on one side of the support plate, one end of the circular pressure rod is rotatably connected to the support rod, and the other end extends to the side edge of the semicircular groove and is distributed along the length direction of the semicircular groove. The bracket plate is fixedly installed on the upper part of the bottom plate, and the second gear is rotatably arranged on one side of the bracket plate, one end of the third rack is fixedly connected to the sliding rod, and the other end extends horizontally to one side of the second gear and meshes with the second gear, and the second rack is vertically distributed and fixedly arranged on the side wall of the piston rod and can mesh with the second gear.

4. The steel material curling device for mechanical processing according to claim 3, characterized in that: The elastic member is a spring or a metal spring.

5. The steel material curling device for mechanical processing according to claim 3, characterized in that: A vertically distributed first guide rail is fixedly disposed on the side wall of the slide bar, and a first guide rail groove adapted to the first guide rail is formed at the end of the support plate. A second guide rail is fixedly arranged at the bottom of the top plate, and a second guide rail groove matched with the second guide rail is opened at the upper end of the slide bar.

6. The steel material curling device for mechanical processing according to claim 1, characterized in that: A notch is provided on the circumferential side wall of the circular pressure roller along the length direction, a screw is rotatably arranged at an eccentric position inside the circular pressure roller, one end of the screw extends to the outside of the circular pressure roller and is fixedly arranged with a first gear, A threaded sleeve is sleeved on the outside of the screw rod, a push plate is fixedly arranged on the outer wall of the threaded sleeve, one end of the push plate away from the threaded sleeve extends from the slot to the outside of the circular pressure roller, and a vertically distributed first rack is also fixedly arranged on the bottom of the top plate, and the first rack can mesh with the first gear.

7. The steel material curling device for mechanical processing according to claim 1, characterized in that: An L-shaped limiting block is fixedly arranged on the upper part of the base at a side position of the semicircular groove.

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