A welded pipe straightening device
By designing limiting and adjusting devices, the problem of displacement of welded pipes during straightening was solved, achieving stable straightening and adjustment of welded pipes and ensuring the straightening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN SANHE HEAVY IND STEEL PROD CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-30
AI Technical Summary
Welded pipes are prone to displacement during the straightening process, resulting in substandard straightening.
A welded pipe straightening device was designed, including a limiting device and an adjusting device. The limiting device uses a combination of a semi-circular ring, a rectangular plate, screws and nuts to prevent the welded pipe from shifting during the straightening process. The adjusting device uses a support plate and a sponge block to avoid rigid contact, thus achieving stable straightening of the welded pipe.
This effectively prevents displacement of the welded pipe during the straightening process, ensuring the straightening effect, avoiding overload and jamming, and achieving stable straightening of the welded pipe.
Smart Images
Figure CN224423866U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of welded pipe straightening devices, and in particular to a welded pipe straightening device. Background Technology
[0002] A straightening machine is a device used to straighten metal profiles, bars, tubes, wires, etc. The straightening machine uses straightening rollers to compress the bar or other material, changing its straightness. Generally, there are two rows of straightening rollers, but the number varies. There are also two-roll straightening machines that rely on the angle change of the two rollers (a concave, hyperbolic roller) to straighten materials of different diameters. The main types include pressure straightening machines, balance roller straightening machines, shoe roller straightening machines, rotary reverse bending straightening machines, etc.
[0003] The inventors discovered during routine use of the straightening machine that, because the welded pipe moves in a spiral motion when the straightening machine is used to straighten it, the welded pipe may shift during the straightening process, which may prevent the welded pipe from being straightened and thus cause problems. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a welded pipe straightening device.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a welded pipe straightening device, comprising a base, a bracket fixedly connected to the top of the base, and a motor fixedly connected to the side of the bracket. A straightening roller is rotatably connected to the side of the bracket, the straightening roller being driven by the motor. An adjusting mechanism is fixedly connected to the top of the base, an auxiliary roller is provided on the top of the straightening roller, a limiting device is provided on the top of the base, and an adjusting device is provided on the top of the base. The limiting device includes a semi-circular ring fixedly connected to the top of the base, a rectangular plate fixedly connected to the side of the semi-circular ring, a screw inserted into the surface of the other semi-circular ring, and a nut fixedly connected to the bottom of the rectangular plate.
[0006] The effect achieved by the above components is as follows: under the action of the semi-circular ring, the welded pipe can be limited, thereby avoiding the phenomenon of the welded pipe shifting during straightening and failing to meet the straightening standard. When the welded pipe is straightened, the drive motor causes the straightening roller to rotate under the action of the motor coupling. Since the straightening roller and the auxiliary roller are in a cross state, the welded pipe rotates and moves forward, thereby straightening the welded pipe between the straightening roller and the auxiliary roller.
[0007] Preferably, a pad, which is a rubber plate, is fixedly connected to the top of the rectangular plate.
[0008] The effect achieved by the above components is that, under the action of the pad, the semi-circular ring will not be overloaded when it is fixed by screws and nuts.
[0009] Preferably, the surface of the semi-circular ring is provided with a circular groove, and a ball bearing is rotatably connected inside the circular groove.
[0010] The effect achieved by the above components is that, under the action of the ball bearings, the welded pipe will no longer get stuck between the semicircular rings.
[0011] Preferably, the surface of another semi-circular ring is threaded with a screw, and one end of the screw is rotatably connected to an arc-shaped plate.
[0012] The effect achieved by the above components is that, under the action of the screw, the arc plate squeezes the welded pipe inside the semi-circular ring, thereby preventing the welded pipe from shifting.
[0013] Preferably, a fixing rod is fixedly connected to the surface of the arc-shaped plate, and the fixing rod is slidably connected to the surface of the semi-circular ring.
[0014] The effect achieved by the above components is as follows: Under the action of the fixing rod, the arc plate will not rotate with the rotation of the screw. When it is necessary to limit the welded pipe, the welded pipe is placed inside the semi-circular ring, and the other semi-circular ring is rotated and locked onto the surface of the welded pipe. The screw is inserted into the push-out interior opened on the surface of the rectangular plate. Under the action of the screw and nut, the welded pipe can be restricted inside the semi-circular ring. Under the action of the pad, the semi-circular ring will not be overloaded when it is fixed by the screw and nut. When the screw is turned by hand, under the action of the fixing rod, the arc plate will not rotate with the rotation of the screw, so that the arc plate is pressed against the surface of the welded pipe. Under the action of the ball, the welded pipe will not get stuck inside the semi-circular ring, thus achieving the function of limiting the welded pipe.
[0015] Preferably, the adjusting device includes a rectangular groove formed on the top of the base, a threaded rod rotatably connected to the inner wall of the rectangular groove, a trapezoidal block threadedly connected to the surface of the threaded rod, a sliding groove formed on the inner wall of the rectangular groove, a T-shaped rod slidably connected inside the sliding groove, and a support plate fixedly connected to one end of the T-shaped rod.
[0016] The effect achieved by the above components is that, under the action of the threaded rod driving the trapezoidal block, the T-shaped rod pushes the support plate to adjust the height, thereby adjusting the height of the welded pipe and facilitating straightening.
[0017] Preferably, a sponge block is fixedly connected to the surface of the tray.
[0018] The effect achieved by the above components is that, under the action of the sponge block, the welded pipe will not come into direct contact with the welded pipe, thereby avoiding the phenomenon of rigid contact.
[0019] Preferably, a pad, which is a rubber block, is fixedly connected to the surface of the trapezoidal block.
[0020] The aforementioned components achieve the following effects: The pad prevents the trapezoidal block from directly contacting the T-shaped rod, thus avoiding damage to the trapezoidal block. When adjusting the height of the welded pipe, placing the pipe on the surface of the support plate, the sponge block prevents direct contact between the pipes, thus avoiding rigid contact. Tightening the threaded rod by hand causes the trapezoidal block to contact the T-shaped rod, thereby moving the support plate upwards. Again, the pad prevents direct contact between the trapezoidal block and the T-shaped rod, preventing damage to the trapezoidal block and achieving the desired adjustment.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting a limiting device, when it is necessary to limit the welded pipe, the welded pipe is placed inside a semi-circular ring, and the other semi-circular ring is rotated and locked onto the surface of the welded pipe. A screw is inserted into the push-out part opened on the surface of the rectangular plate. Under the action of the screw and nut, the welded pipe can be restricted inside the semi-circular ring. Under the action of the pad, the semi-circular ring will not be overloaded when it is fixed by the screw and nut. By turning the screw by hand, under the action of the fixing rod, the arc plate will not rotate with the rotation of the screw, so that the arc plate is pressed against the surface of the welded pipe. Under the action of the ball, the welded pipe will not get stuck inside the semi-circular ring, thus achieving the limiting effect on the welded pipe. This solves the problem that the welded pipe may shift during straightening, resulting in poor straightening. Attached Figure Description
[0023] Figure 1 This utility model provides a three-dimensional structural diagram of a welded pipe straightening device;
[0024] Figure 2 This utility model provides a schematic diagram of a limiting device for a welded pipe straightening device;
[0025] Figure 3 This utility model provides a schematic diagram of the adjustment device for a welded pipe straightening device.
[0026] Legend: 1. Base; 2. Limiting device; 21. Semicircular ring; 22. Rectangular plate; 23. Pad; 24. Screw; 25. Ball bearing; 26. Screw; 27. Arc plate; 28. Fixing rod; 3. Adjusting device; 31. Rectangular groove; 32. Threaded rod; 33. Trapezoidal block; 34. T-shaped rod; 35. Support plate; 36. Sponge block; 4. Straightening roller; 5. Adjusting machine. Detailed Implementation
[0027] Example 1, as Figure 1-3As shown, a welded pipe straightening device includes a base 1, a bracket fixedly connected to the top of the base 1, and a motor fixedly connected to the side of the bracket. A straightening roller 4 is rotatably connected to the side of the bracket, and the straightening roller 4 is driven by the motor. An adjusting mechanism 5 is fixedly connected to the top of the base 1, an auxiliary roller is provided on the top of the straightening roller 4, a limit device 2 is provided on the top of the base 1, and an adjusting device 3 is provided on the top of the base 1. When straightening the welded pipe, the motor is driven, causing the straightening roller 4 to rotate under the action of the motor coupling. Since the straightening roller 4 and the auxiliary roller are in a cross state, the welded pipe rotates and moves forward, thereby straightening the welded pipe between the straightening roller 4 and the auxiliary roller.
[0028] Reference Figure 2 The limiting device 2 includes a top semicircular ring 21 fixedly connected to the base 1, a rectangular plate 22 fixedly connected to the side of the semicircular ring 21, a screw 24 inserted into the surface of the other semicircular ring 21, and a nut fixedly connected to the bottom of the rectangular plate 22. Under the action of the semicircular ring 21, the welded pipe can be limited, thereby avoiding the phenomenon of the welded pipe shifting during straightening and failing to meet the straightening standard. When straightening the welded pipe, the drive motor causes the straightening roller 4 to rotate under the action of the motor coupling. Since the straightening roller 4 and the auxiliary roller are in a cross state, the welded pipe rotates... The pipe is moved forward, and then straightened between the straightening roller 4 and the auxiliary roller. A pad 23, which is a rubber plate, is fixedly connected to the top of the rectangular plate 22. Under the action of the pad 23, the semi-circular ring 21 will not be overloaded when it is fixed by the screw 24 and the nut. A circular groove is opened on the surface of the semi-circular ring 21, and a ball bearing 25 is rotatably connected inside the groove. Under the action of the ball bearing 25, the pipe will not get stuck between the semi-circular rings 21. A screw 26 is threadedly connected to the surface of the other semi-circular ring 21. One end of the screw 26 rotates... An arc-shaped plate 27 is dynamically connected. Under the action of the screw 26, the arc-shaped plate 27 presses the welded pipe inside the semi-circular ring 21, thus preventing the welded pipe from shifting. A fixing rod 28 is fixedly connected to the surface of the arc-shaped plate 27. The fixing rod 28 is slidably connected to the surface of the semi-circular ring 21. Under the action of the fixing rod 28, the arc-shaped plate 27 will not rotate with the rotation of the screw 26. When it is necessary to limit the welded pipe, the welded pipe is placed inside the semi-circular ring 21, and the other semi-circular ring 21 is rotated to lock onto the surface of the welded pipe. The screw 24 is then inserted to the torque setting. The ejection opening on the surface of the shaped plate 22, under the action of the screw 24 and nut, allows the welded pipe to be confined inside the semi-circular ring 21. Under the action of the pad 23, the semi-circular ring 21 will not be overloaded when it is fixed by the screw 24 and nut. By turning the screw 26 by hand, under the action of the fixing rod 28, the arc plate 27 will not rotate with the rotation of the screw 26, so that the arc plate 27 is pressed against the surface of the welded pipe. Under the action of the ball 25, the welded pipe will not get stuck inside the semi-circular ring 21, thus achieving the function of limiting the welded pipe.
[0029] Reference Figure 3 The adjusting device 3 includes a rectangular groove 31 formed on the top of the base 1. A threaded rod 32 is rotatably connected to the inner wall of the rectangular groove 31. A trapezoidal block 33 is threadedly connected to the surface of the threaded rod 32. A sliding groove is formed on the inner wall of the rectangular groove 31. A T-shaped rod 34 is slidably connected inside the sliding groove. A support plate 35 is fixedly connected to one end of the T-shaped rod 34. Under the action of the threaded rod 32 driving the trapezoidal block 33, the T-shaped rod 34 pushes the support plate 35 to adjust the height, thereby adjusting the height of the welded pipe and facilitating straightening. A sponge block 36 is fixedly connected to the surface of the support plate 35. Under the action of the sponge block 36, the welded pipe will not directly contact the support plate, thus avoiding rigid contact. For example, a pad, which is a rubber block, is fixedly connected to the surface of the trapezoidal block 33. Under the action of the pad, the trapezoidal block 33 will not directly contact the T-shaped rod 34, thus avoiding damage to the trapezoidal block 33. When it is necessary to adjust the height of the welded pipe, the welded pipe is placed on the surface of the support plate 35. Under the action of the sponge block 36, the welded pipe will not directly contact the T-shaped rod 34, thus avoiding rigid contact. The threaded rod 32 is turned by hand, so that the trapezoidal block 33 contacts the T-shaped rod 34, thereby moving the support plate 35 upward. Under the action of the pad, the trapezoidal block 33 will not directly contact the T-shaped rod 34, thus avoiding damage to the trapezoidal block 33, thereby achieving the adjustment function.
[0030] Working principle: When the welded pipe straightening device is needed, the drive motor causes the straightening roller 4 to rotate under the action of the motor coupling. Since the straightening roller 4 and the auxiliary roller are in a crossed state, the welded pipe rotates and moves forward, thus straightening the welded pipe between the straightening roller 4 and the auxiliary roller. When the welded pipe needs to be limited, the welded pipe is placed inside the semi-circular ring 21, and the other semi-circular ring 21 is rotated and locked onto the surface of the welded pipe. The screw 24 is inserted into the ejection opening on the surface of the rectangular plate 22. Under the action of the screw 24 and nut, the welded pipe can be restricted inside the semi-circular ring 21. Under the action of the pad 23, the semi-circular ring 21 will not be overloaded when it is fixed by the screw 24 and nut. The screw 26 is turned by hand. Under the action of the fixed rod 28, the arc plate 27 will not rotate with the rotation of the screw 26, so that the arc plate 27 is pressed against the surface of the welded pipe. Under the action of the ball 25, the welded pipe will not get stuck inside the semi-circular ring 21, thus achieving the function of limiting the welded pipe. When it is necessary to adjust the height of the welded pipe, the welded pipe is placed on the surface of the support plate 35. Under the action of the sponge block 36, the welded pipe will not directly contact the support plate 35, thus avoiding the phenomenon of rigid contact. The threaded rod 32 is turned by hand, so that the trapezoidal block 33 contacts the T-shaped rod 34, thus moving the support plate 35 upward. Under the action of the pad, the trapezoidal block 33 will not directly contact the T-shaped rod 34, thus avoiding the phenomenon of damage to the trapezoidal block 33, thus achieving the function of adjustment.
Claims
1. A welded pipe straightening device, comprising a base (1), the upper top of the base (1) is fixedly connected with a support, the side surface of the support is fixedly connected with a motor, the side surface of the support is rotatably connected with a straightening roller (4), the straightening roller (4) is driven by the motor, characterized in that: An adjusting machine (5) is fixedly connected to the top of the base (1), an auxiliary roller is provided on the top of the straightening roller (4), a limiting device (2) is provided on the top of the base (1), an adjusting device (3) is provided on the top of the base (1), the limiting device (2) includes a semi-circular ring (21) fixedly connected to the top of the base (1), a rectangular plate (22) is fixedly connected to the side of the semi-circular ring (21), a screw (24) is inserted into the surface of the other semi-circular ring (21), and a nut is fixedly connected to the bottom of the rectangular plate (22).
2. The welded pipe straightening device according to claim 1, characterized in that: A pad (23) is fixedly connected to the top of the rectangular plate (22), and the pad (23) is a rubber plate.
3. The welded pipe straightening device according to claim 2, characterized in that: The surface of the semi-circular ring (21) is provided with a circular groove, and a ball bearing (25) is rotatably connected inside the circular groove.
4. The welded pipe straightening device according to claim 3, characterized in that: Another semi-circular ring (21) has a screw (26) threadedly connected to its surface, and one end of the screw (26) is rotatably connected to an arc plate (27).
5. The welded pipe straightening device according to claim 4, characterized in that: A fixing rod (28) is fixedly connected to the surface of the arc plate (27), and the fixing rod (28) is slidably connected to the surface of the semi-circular ring (21).
6. The welded pipe straightening device according to claim 5, characterized in that: The adjustment device (3) includes a rectangular groove (31) on the top of the base (1). A threaded rod (32) is rotatably connected to the inner wall of the rectangular groove (31). A trapezoidal block (33) is threaded onto the surface of the threaded rod (32). A sliding groove is provided on the inner wall of the rectangular groove (31). A T-shaped rod (34) is slidably connected inside the sliding groove. A support plate (35) is fixedly connected to one end of the T-shaped rod (34).
7. The welded pipe straightening device according to claim 6, characterized in that: A sponge block (36) is fixedly connected to the surface of the tray (35).
8. The welded pipe straightening device according to claim 7, characterized in that: A pad, which is a rubber block, is fixedly connected to the surface of the trapezoidal block (33).