Steel plate bending machine

Abstract

The utility model provides a steel plate bending machine. The steel plate bending machine comprises a base, a main bending part for placing a steel plate is arranged at the top of the base, supporting piece sets are arranged at the two ends of the top of the base, a top plate is arranged at the tops of the supporting piece sets, a hydraulic cylinder is arranged at the top of the top plate, and the output end of the hydraulic cylinder penetrates to the position below the top plate and then is provided with a pressing plate. When the steel plate bending device is used, a steel plate is placed on the main bending part, the two sides of the steel plate are limited through the second limiting assemblies, the placing position of the steel plate on the main bending part is kept in the middle, then the two ends of the top of the steel plate are pressed downwards through the first limiting assemblies, and the steel plate is prevented from rebounding due to counter-acting force; the safety of the steel plate bending machine is improved, then the hydraulic cylinder is started, the output end of the hydraulic cylinder drives the pressing plate to move downwards, the pressing plate moves downwards to drive the auxiliary bending part to move downwards, the auxiliary bending part is matched with the main bending part to bend the steel plate in a wave shape, and the applicability of the steel plate bending machine is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel plate bending, in particular to a steel plate bending machine. Background Art

[0002] The steel plate bending machine is a mechanical device used to bend metal plates, which is widely used in sheet metal manufacturing, building decoration, electrical appliance manufacturing, automobile manufacturing and other industries. Its working principle is to use electric or hydraulic drive to move the upper die downward and apply pressure to the metal plate placed on the lower die, and bend the metal plate into the desired shape according to the preset angle and shape.

[0003] Patent document CN215279165U discloses a cold-rolled steel plate bending device for bookshelf processing with adjustable bending angle. The protected claim "includes a column, a cross bar is installed on the left side of the column, and a bending piece is installed on the left end of the cross bar, a handle is provided on the right side of the column, and a latch is installed on the surface of the handle, and the left end of the latch is in contact with a socket, a cam is connected to the left side of the handle, and a connecting rod is connected to the top of the cam, a vertical rod is installed on the lower surface of the column, and the vertical rod passes through a single-rotation reciprocating screw and is connected to the inner surface of the base plate, a right fixed block is provided on the upper surface of the base plate, and a right spring is installed on the left side of the right fixed block, and a right clamping piece is installed on the left end of the right spring. The cold-rolled steel plate bending device for bookshelf processing with adjustable bending angle can adjust the angle of the bending piece through simple operation, and continuously bends the steel in the process of the column moving back and forth, thereby solving the problem that the existing bending device is difficult to adjust the bending angle."

[0004] The cold-rolled steel plate bending device for bookshelf processing with adjustable bending angle in the above-mentioned public document mainly considers driving the vertical rod to slide back and forth on the bottom plate through a motor, driving the column to move back and forth in the horizontal direction, so that the bending part continuously bends the surface of the steel plate, and realizes that one pair of adjusting the angle of the bending part can perform multiple operations on the surface of the steel plate, thereby improving the problem of working efficiency. It does not take into account that it is difficult to bend the steel plate into a wavy shape. The steel plate bent into a wavy shape requires multiple bendings, which is time-consuming and labor-intensive. At the same time, the above-mentioned bending device is not safe when bending. When bending, the cold-rolled steel plate will have a reaction force, and the reaction force is easy to rebound, which is easy to cause danger. For example, the fixing parts that fix the steel plate fall off, and then the rebound of the steel plate will cause danger to nearby workers, so it is necessary to improve the above-mentioned device. Utility Model Content

[0005] The utility model aims to provide a steel plate bending machine, aiming to solve the problems that the steel plate bending machine in the prior art is inconvenient to bend the steel plate into a wave shape and has low safety.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a steel plate bending machine, comprising a base, a main bending part for placing a steel plate on the top of the base, support parts groups are arranged at both ends of the top of the base, a top plate is arranged on the top of the support parts group, a hydraulic cylinder is arranged on the top of the top plate, the output end of the hydraulic cylinder passes through the bottom of the top plate and a pressure plate is arranged thereafter, a secondary bending part cooperating with the main bending part is arranged at the bottom of the pressure plate, a first limit assembly for limiting the downward pressure on the top of the steel plate is arranged on the inner side of the support parts group, and second limit assemblies for limiting the positions of both sides of the steel plate are arranged at both ends of the top of the base.

[0007] Preferably, the second limiting assembly includes a guide groove and a driving groove, the driving groove is arranged inside the base, the guide grooves are symmetrically penetrated at both ends of the top of the base, the guide grooves penetrate into the interior of the driving groove, a bidirectional screw rod is rotatably arranged inside the driving groove, a threaded slider is threadedly connected at the positive thread and the negative thread of the bidirectional screw rod, and the threaded slider is passed through the interior of the guide groove, a splint is arranged on the top of the threaded slider, and a handwheel is arranged after one end of the bidirectional screw rod penetrates to the outside of the base.

[0008] Preferably, the first limiting assembly includes a slide groove, a sliding block, a limiting plate and an electric telescopic rod, the slide groove is symmetrically arranged on the inner side of the support member group, the sliding block is passed through the inside of the slide groove, the two ends of the limiting plate are connected to the corresponding sliding blocks, the electric telescopic rod is arranged at the bottom of the top plate, and the output end of the electric telescopic rod is connected to the limiting plate.

[0009] Preferably, the bottom height of the slide groove is higher than the top height of the clamping plate.

[0010] Preferably, support legs are provided at the bottom of the base.

[0011] Preferably, the contact surfaces between the main bending portion and the secondary bending portion and the steel plate are both wavy.

[0012] The beneficial effects of the utility model are:

[0013] When the utility model is in use, a steel plate is placed on the main bending part, and the two sides of the steel plate are limited by the second limiting component, so that the placement position of the steel plate on the main bending part is kept in the center, and then the top two ends of the steel plate are pressed down by the first limiting component to prevent the steel plate from rebounding due to the reaction force, thereby improving the safety of the steel plate bending machine. Then, the hydraulic cylinder is started, and the output end of the hydraulic cylinder drives the pressure plate to move downward. The downward movement of the pressure plate drives the auxiliary bending part to move downward, and the auxiliary bending part cooperates with the main bending part to bend the steel plate in a wave shape, thereby greatly improving the applicability of the steel plate bending machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a front view structural schematic diagram of the utility model.

[0016] Figure 3 It is a side structural schematic diagram of the utility model.

[0017] Figure 4 The utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0018] In the figure: 1. base; 2. main bending part; 3. support member group; 4. top plate; 5. hydraulic cylinder; 6. pressure plate; 7. secondary bending part; 8. second limit assembly; 9. guide groove; 10. bidirectional screw rod; 11. threaded slider; 12. clamping plate; 13. hand wheel; 14. first limit assembly; 15. sliding block; 16. limit plate; 17. electric telescopic rod; 18. support leg. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 4 As shown, a steel plate bending machine comprises a base 1, a main bending part 2 for placing a steel plate is provided on the top of the base 1, support parts groups 3 are provided at both ends of the top of the base 1, a top plate 4 is provided on the top of the support parts group 3, a hydraulic cylinder 5 is provided on the top of the top plate 4, an output end of the hydraulic cylinder 5 passes through the bottom of the top plate 4 and a pressure plate 6 is provided thereafter, an auxiliary bending part 7 cooperating with the main bending part 2 is provided at the bottom of the pressure plate 6, a first limiting assembly 14 for limiting the downward pressure on the top of the steel plate is provided on the inner side of the support parts group 3, and second limiting assemblies 8 for limiting the two sides of the steel plate are provided at both ends of the top of the base 1.

[0021] In this embodiment, the steel plate is placed on the main bending part 2 and the two sides of the steel plate are limited by the second limiting component 8, so that the placement position of the steel plate on the main bending part 2 is kept centered, and then the top ends of the steel plate are pressed down by the first limiting component 14 to prevent the steel plate from rebounding due to the reaction force, thereby improving the safety of the steel plate bending machine. Then, the hydraulic cylinder 5 is started, and the output end of the hydraulic cylinder 5 drives the pressure plate 6 to move downward, and the downward movement of the pressure plate 6 drives the auxiliary bending part 7 to move downward, and the auxiliary bending part 7 cooperates with the main bending part 2 to bend the steel plate in a wave shape, thereby greatly improving the applicability of the steel plate bending machine.

[0022] like Figure 3 and Figure 4As shown, the second limiting component 8 includes a guide groove 9 and a driving groove. The driving groove is arranged inside the base 1. The guide grooves 9 are symmetrically penetrated at both ends of the top of the base 1. The guide grooves 9 penetrate into the interior of the driving groove. A bidirectional screw rod 10 is rotatably arranged inside the driving groove. The positive thread and the negative thread of the bidirectional screw rod 10 are both threadedly connected with a threaded slider 11, and the threaded slider 11 is penetrated into the guide groove 9. A splint 12 is arranged on the top of the threaded slider 11. One end of the bidirectional screw rod 10 penetrates to the outside of the base 1 and is provided with a handwheel 13.

[0023] In this embodiment, when it is necessary to limit the two sides of the steel plate, the hand wheel 13 is rotated forward to drive the bidirectional screw 10 to rotate forward, and the forward rotation of the bidirectional screw 10 drives the two groups of threaded sliders 11 to approach each other. The setting of the guide groove 9 prevents the threaded slider 11 from rotating with the bidirectional screw 10. The movement of the threaded slider 11 drives the clamping plate 12 to move, and the clamping plates 12 approach each other to clamp and limit the two sides of the steel plate, so that the placement position of the steel plate on the main bending portion 2 remains centered.

[0024] like Figure 3 and Figure 4 As shown, the first limiting assembly 14 includes a slide groove, a sliding block 15, a limiting plate 16 and an electric telescopic rod 17. The slide groove is symmetrically arranged on the inner side of the support member group 3, the sliding block 15 is passed through the inside of the slide groove, the two ends of the limiting plate 16 are connected to the corresponding sliding blocks 15, the electric telescopic rod 17 is arranged at the bottom of the top plate 4, and the output end of the electric telescopic rod 17 is connected to the limiting plate 16.

[0025] In this embodiment, the setting of the slide groove guides the movement of the sliding block 15, so that the limit plate 16 maintains a stable horizontal lifting. By starting the electric telescopic rod 17, the electric telescopic rod 17 drives the limit plate 16 to press the steel plate downward to limit the position, thereby achieving the purpose of pressing the steel plate downward to limit the position, thereby improving the safety of the bending machine.

[0026] Specifically, the bottom height of the slide groove is higher than the top height of the clamping plate 12 .

[0027] like Figure 2 As shown, a support leg 18 is provided at the bottom of the base 1, and the support leg 18 is used to support and fix the bending machine.

[0028] Specifically, the contact surfaces between the main bending portion 2 and the auxiliary bending portion 7 and the steel plate are both wavy.

[0029] Working principle: when in use, by placing the steel plate on the main bending part 2, the bidirectional screw 10 is driven to rotate forward by rotating the hand wheel 13 forward, and the bidirectional screw 10 is driven to rotate forward by driving the two sets of threaded sliders 11 to approach each other, and the setting of the guide groove 9 prevents the threaded slider 11 from rotating with the bidirectional screw 10, and the movement of the threaded slider 11 drives the clamping plate 12 to move, and the clamping plates 12 approach each other to clamp and limit the two sides of the steel plate, so that the placement position of the steel plate on the main bending part 2 remains centered, and then the electric telescopic rod 17 is started, and the electric telescopic rod 17 drives the limit plate 16 to press the steel plate downward to limit the position, so as to achieve the purpose of pressing the steel plate downward to limit the position, prevent the steel plate from rebounding due to the reaction force, and improve the safety of the steel plate bending machine, and then start the hydraulic cylinder 5, and the output end of the hydraulic cylinder 5 drives the pressure plate 6 to move downward, and the pressure plate 6 moves downward to drive the auxiliary bending part 7 to move downward, and the auxiliary bending part 7 cooperates with the main bending part 2 to bend the steel plate in a wave shape, which greatly improves the applicability of the steel plate bending machine.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steel plate bending machine, characterized in that: include: A base (1), wherein the top of the base (1) is provided with a main bending portion (2) for placing a steel plate, both ends of the top of the base (1) are provided with a support member group (3), the top of the support member group (3) is provided with a top plate (4), the top of the top plate (4) is provided with a hydraulic cylinder (5), the output end of the hydraulic cylinder (5) passes through the bottom of the top plate (4) and is provided with a pressure plate (6), the bottom of the pressure plate (6) is provided with an auxiliary bending portion (7) that cooperates with the main bending portion (2), the inner side of the support member group (3) is provided with a first limit assembly (14) for limiting the downward pressure of the top of the steel plate, and both ends of the top of the base (1) are provided with a second limit assembly (8) for limiting the two sides of the steel plate.

2. The steel plate bending machine according to claim 1, characterized in that: The second limiting component (8) comprises a guide groove (9) and a driving groove, wherein the driving groove is arranged inside the base (1), the guide groove (9) is symmetrically penetrated at both ends of the top of the base (1), the guide groove (9) penetrates into the interior of the driving groove, a bidirectional screw rod (10) is rotatably arranged inside the driving groove, the positive thread and the negative thread of the bidirectional screw rod (10) are both threadedly connected with a threaded slider (11), and the threaded slider (11) is penetrated inside the guide groove (9), a clamping plate (12) is arranged on the top of the threaded slider (11), and a hand wheel (13) is arranged after one end of the bidirectional screw rod (10) penetrates to the outside of the base (1).

3. The steel plate bending machine according to claim 1, characterized in that: The first limiting assembly (14) comprises a slide groove, a sliding block (15), a limiting plate (16) and an electric telescopic rod (17); the slide groove is symmetrically arranged on the inner side of the support member group (3); the sliding block (15) is inserted into the slide groove; two ends of the limiting plate (16) are connected to the corresponding sliding blocks (15); the electric telescopic rod (17) is arranged at the bottom of the top plate (4); and the output end of the electric telescopic rod (17) is connected to the limiting plate (16).

4. The steel plate bending machine according to claim 3, characterized in that: The bottom height of the slide groove is higher than the top height of the clamping plate (12).

5. The steel plate bending machine according to claim 1, characterized in that: The bottom of the base (1) is provided with supporting legs (18).

6. The steel plate bending machine according to claim 1, characterized in that: The contact surfaces between the main bending portion (2) and the secondary bending portion (7) and the steel plate are both wavy.

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