Bending device for steel pipe production

By designing an adjustable bending mechanism, the problem that existing digital display bending machines need to carry multiple sizes of bent plates when dealing with steel pipes with diameters greater than 32mm is solved, and the portability and flexibility of the equipment are realized.

CN222842910UActive Publication Date: 2025-05-09TANGSHAN LONGCHENG RAILWAY ACCESSORIES CO LTD
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Patent Information

Application Number
CN202421634481.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-11
Publication Date
2025-05-09
Estimated Expiration
2034-07-11

AI Technical Summary

Technical Problem

When handling steel pipes with diameters of more than 32mm, existing digital display pipe bending machines need to carry multiple sizes of bent plates, which increases the carrying weight of the equipment and inconvenience of use.

Method used

A steel pipe production bending device is designed, and an adjustable bending mechanism is used to adjust the distance between the second bent plate and the first bent plate by rotating the adjustment screw to adapt to steel pipes of different diameters.

Benefits of technology

The steel pipes of various sizes can be adapted to no replacement of the bending mechanism, which improves the portability and flexibility of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222842910U_ABST
Patent Text Reader

Abstract

The utility model discloses a steel pipe production bending device which comprises a machine body, a bending mechanism is arranged at the top end of the machine body, a rotating shaft is arranged at the top end of the machine body, a stopping block is arranged on one side of the bending mechanism, the bending mechanism comprises a bending assembly and an adjusting assembly, and the bending assembly comprises a first bending plate and a second bending plate. The adjusting assembly comprises an adjusting screw rod, a threaded hole is formed in the top end of the second bent plate, and abutting grooves are formed in the edges of the opposite sides of the first bent plate and the second bent plate. By means of the design of the stop block and the bending mechanism, when the sizes of steel pipes are various, the distance between the second bending plate and the first bending plate is adjusted by rotating the adjusting screw rod, so that the distance between the abutting grooves in the opposite sides of the first bending plate and the second bending plate is increased, and the clamping requirements of the steel pipes of various sizes are met; and then the first bending plate and the second bending plate are driven to rotate through the rotating shaft, so that the steel pipe is bent.
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Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe production equipment, in particular to a steel pipe production bending device. Background Art

[0002] Steel pipes are metal round pipes, usually in a straight line. During use, they need to be bent into various shapes due to usage requirements. At this time, a bending machine is needed to bend the steel pipes.

[0003] The existing digital tube bending machine has the advantages of small size and easy to carry compared to large CNC steel tube bending machines, so it is easy to use on the construction site. However, the bending plate of the digital tube bending machine is a metal plate of fixed size, so the size cannot be adjusted. Generally, an arc-shaped pressure groove is opened on the side of the bending plate for bending steel tubes with a diameter of 10-32mm. However, when there are many specifications of bending tubes on site and there are steel tubes with a diameter greater than 32mm, it is necessary to carry bending plates of multiple specifications, which will increase the carrying weight of the digital tube bending machine and accessories and reduce the convenience of carrying. Utility Model Content

[0004] The utility model aims to provide a steel pipe production bending device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel pipe production bending device, comprising a machine body, a bending mechanism for bending the steel pipe is arranged at the top of the machine body, a rotating shaft for rotating the bending mechanism is arranged at the top of the machine body, a blocking block for limiting the position of the steel pipe is arranged on one side of the bending mechanism, the bending mechanism comprises a bending assembly and an adjusting assembly, the bending assembly comprises a first bending plate and a second bending plate, the adjusting assembly comprises an adjusting screw, a threaded hole for inserting the adjusting screw is provided at the top of the second bending plate, and a pressure groove for clamping the steel pipe is provided at the edges on the opposite sides of the first bending plate and the second bending plate.

[0006] Preferably, a control switch for controlling the start and stop of the rotating shaft is provided on one side of the front of the machine body, an adjustment plate for adjusting the position of the blocking block is fixedly connected to the top of the machine body, a circular through groove is provided at the top of the blocking block, an insert rod is inserted into the inside of the circular through groove, and an adjustment groove for inserting the insert rod is provided at the top of the adjustment plate.

[0007] Preferably, the top ends of the first bent plate and the second bent plate are respectively provided with rotation holes for inserting the rotation shaft, and the shape of the rotation hole is the same as that of the rotation shaft.

[0008] Preferably, a groove is provided at the top of the first bending plate, a bearing is sleeved on the outer wall of the bottom of the adjusting screw, the outer wall of the bearing is fixedly connected to the inner wall of the groove, the adjusting screw is threadedly connected to the threaded hole, and a limiting member for limiting the rotation of the second bending plate is provided at the top of the first bending plate.

[0009] Preferably, the limiting member comprises a limiting rod, the bottom end of the limiting rod is fixedly connected to the top end of the first bent plate, the top end of the second bent plate is provided with a limiting hole, and the limiting rod is interlaced and connected with the limiting hole.

[0010] Preferably, a clamping rod for limiting the movement of the steel pipe is fixedly connected to the back side of the first bending plate, and the clamping rod is L-shaped.

[0011] Preferably, the horizontal cross-section of the adjusting screw is semi-arc-shaped, and the vertical cross-section of the pressing groove is an arc-shaped surface.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model utilizes the design of a blocking block and a bending mechanism. When the sizes of the steel pipes are diverse, there is no need to replace the bending mechanism. The distance between the second bending plate and the first bending plate is adjusted by rotating the adjusting screw, thereby increasing the distance between the pressure grooves on the opposite sides of the first bending plate and the second bending plate, thereby meeting the clamping requirements of steel pipes of various sizes. The first bending plate and the second bending plate are driven to rotate by the rotating shaft, thereby bending the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the first bent plate of the utility model.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the second bent plate of the utility model.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the blocking block of the utility model.

[0018] In the figure: 1. body; 2. control switch; 3. rotating shaft; 4. bending mechanism; 41. first bending plate; 42. second bending plate; 43. rotating hole; 44. pressing groove; 45. adjusting screw; 46. threaded hole; 47. limiting rod; 48. limiting hole; 5. clamping rod; 6. adjusting plate; 7. inserting rod; 8. blocking block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides Figure 1-4 A steel pipe production bending device shown in the figure includes a body 1, a bending mechanism 4 for bending the steel pipe is arranged at the top of the body 1, a rotating shaft 3 for rotating the bending mechanism 4 is arranged at the top of the body 1, a blocking block 8 for limiting the position of the steel pipe is arranged on one side of the bending mechanism 4, the bending mechanism 4 includes a bending component and an adjusting component, the bending component includes a first bending plate 41 and a second bending plate 42, the adjusting component includes an adjusting screw 45, a threaded hole 46 for inserting the adjusting screw 45 is opened at the top of the second bending plate 42, and a pressing groove 44 for clamping the steel pipe is opened on the edge of the opposite side of the first bending plate 41 and the second bending plate 42.

[0021] Specifically, a control switch 2 for controlling the start and stop of the rotating shaft 3 is provided on one side of the front of the body 1, and an adjustment plate 6 for adjusting the position of the blocking block 8 is fixedly connected to the top of the body 1. A circular through groove is provided at the top of the blocking block 8, and an insertion rod 7 is inserted and connected inside the circular through groove. An adjustment groove for inserting the insertion rod 7 is provided at the top of the adjustment plate 6.

[0022] Furthermore, the machine body 1, the control switch 2, the rotating shaft 3, the adjusting plate 6, the blocking block 8 and the insert rod 7 constitute a pipe bending machine having a working principle similar to that of the existing model DB32 digital display pipe bending machine. The adjusting groove provided at the top of the adjusting plate 6 is a circular groove for inserting the insert rod 7. When bending the pipe, the round pipe is placed on the opposite side of the bending mechanism 4 and the blocking block 8, so as to clamp the round pipe. The insert rod 7 is used to adjust the position of the blocking block 8 according to the different diameters of the round pipe. The adjustment method is to adjust the distance between the blocking block 8 and the bending mechanism 4 by inserting the rod 7 into the adjusting grooves at different positions of the adjusting plate 6.

[0023] Specifically, the top ends of the first bending plate 41 and the second bending plate 42 are respectively provided with a rotating hole 43 for inserting the rotating shaft 3, and the shape of the rotating hole 43 is the same as the shape of the rotating shaft 3. The top of the first bending plate 41 is provided with a groove, and the outer wall of the bottom of the adjusting screw 45 is sleeved with a bearing, and the outer wall of the bearing is fixedly connected to the inner wall of the groove, and the adjusting screw 45 is threadedly inserted and connected with the threaded hole 46. The top end of the first bending plate 41 is provided with a limiting member for limiting the rotation of the second bending plate 42, and the limiting member includes a limiting rod 47, and the bottom end of the limiting rod 47 is fixedly connected to the top end of the first bending plate 41. The top end of the second bending plate 42 is provided with a limiting hole 48, and the limiting rod 47 is inserted and connected with the limiting hole 48. The back side of the first bending plate 41 is fixedly connected with a clamping rod 5 for limiting the movement of the steel pipe, and the clamping rod 5 is L-shaped. The horizontal cross-section of the adjusting screw 45 is a semi-arc, and the vertical cross-section of the pressing groove 44 is an arc surface.

[0024] Furthermore, the first bending plate 41 and the second bending plate 42 have the same size, which is similar to the existing bending plate shape, both of which are semicircular, the size of the rotating hole 43 is 1.02 times the size of the rotating shaft 3, the top of the bearing is flush with the top of the first bending plate 41, the bearing is fixedly sleeved on the outer wall of the bottom of the adjusting screw 45, the thread of the outer wall of the adjusting screw 45 and the thread of the inner wall of the threaded hole 46 are meshed with each other, the bottom end of the limiting rod 47 is welded and fixed to the top of the first bending plate 41, the diameter of the limiting rod 47 is 0.98 times the diameter of the limiting hole 48, the clamping rod 5 is fixedly connected to the back of the first bending plate 41 by bolts, and when the 10-32mm diameter pipe is bent, there is no need By turning the adjusting screw 45, the first bending plate 41 and the second bending plate 42 can be kept in close contact, and the steel pipe can be placed inside the blocking block 8 and the pressing groove 44. One end of the steel pipe is inserted and arranged on one side of the vertical rod of the clamping rod 5. The bending mechanism 4 is driven by the rotating shaft 3 to rotate to be bent. When the diameter of the steel pipe is greater than 32 mm, there is no need to replace the bending mechanism 4. By turning the adjusting screw 45, the second bending plate 42 is moved away from the first bending plate 41, thereby increasing the distance between the relative pressing grooves 44, so that the symmetrically arranged pressing grooves 44 are re-fitted with the two ends of the outer wall of the steel pipe, and the steel pipe is clamped. The steel pipe can be bent by controlling the rotation of the rotating shaft 3.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel pipe production bending device, comprising a machine body (1), characterized in that: A bending mechanism (4) for bending a steel pipe is arranged at the top of the machine body (1), a rotating shaft (3) for rotating the bending mechanism (4) is arranged at the top of the machine body (1), a blocking block (8) for limiting the position of the steel pipe is arranged on one side of the bending mechanism (4), the bending mechanism (4) comprises a bending component and an adjusting component, the bending component comprises a first bending plate (41) and a second bending plate (42), the adjusting component comprises an adjusting screw (45), a threaded hole (46) for inserting the adjusting screw (45) is provided at the top of the second bending plate (42), and a pressing groove (44) for clamping the steel pipe is provided on the edges of the opposite sides of the first bending plate (41) and the second bending plate (42).

2. A steel pipe production bending device according to claim 1, characterized in that: A control switch (2) for controlling the start and stop of the rotating shaft (3) is arranged on one side of the front face of the machine body (1); an adjustment plate (6) for adjusting the position of a blocking block (8) is fixedly connected to the top of the machine body (1); a circular through groove is provided at the top of the blocking block (8); a plug rod (7) is inserted into the inside of the circular through groove; and an adjustment groove for plugging the plug rod (7) is provided at the top of the adjustment plate (6).

3. The steel pipe production bending device according to claim 1, characterized in that: The top ends of the first bent plate (41) and the second bent plate (42) are respectively provided with a rotating hole (43) for inserting the rotating shaft (3), and the shape of the rotating hole (43) is the same as that of the rotating shaft (3).

4. A steel pipe production bending device according to claim 1, characterized in that: A groove is provided at the top of the first bending plate (41), a bearing is sleeved on the outer wall of the bottom of the adjusting screw (45), the outer wall of the bearing is fixedly connected to the inner wall of the groove, the adjusting screw (45) is threadedly connected to the threaded hole (46), and a limiting member for limiting the rotation of the second bending plate (42) is provided at the top of the first bending plate (41).

5. A steel pipe production bending device according to claim 4, characterized in that: The limiting member comprises a limiting rod (47), the bottom end of the limiting rod (47) is fixedly connected to the top end of the first bent plate (41), the top end of the second bent plate (42) is provided with a limiting hole (48), and the limiting rod (47) and the limiting hole (48) are interlaced and connected.

6. The steel pipe production bending device according to claim 1, characterized in that: A clamping rod (5) for limiting the movement of the steel pipe is fixedly connected to the back side of the first bending plate (41), and the clamping rod (5) is L-shaped.

7. The steel pipe production bending device according to claim 1, characterized in that: The horizontal cross section of the adjusting screw rod (45) is semi-arc-shaped, and the vertical cross section of the pressing groove (44) is an arc-shaped surface.