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Steel pipe straightening device and method

A steel pipe and straightening technology, which is applied in metal processing equipment, feeding devices, positioning devices, etc., can solve problems such as steel pipe back-cutting, and achieve the effect of reducing straightening deformation resistance and easy deformation

Pending Publication Date: 2020-01-24
HENGYANG VALIN STEEL TUBE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The main purpose of the present invention is to provide a steel pipe straightening equipment and a steel pipe straightening method to solve the problem of back-cutting of steel pipes due to pipe end bending in the related art

Method used

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  • Steel pipe straightening device and method
  • Steel pipe straightening device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The driving cylinder of the driving cylinder assembly in the first embodiment may be an oil cylinder or an air cylinder.

[0037] Such as image 3 As shown, in the first embodiment, the first bracket 41 includes a first bracket body 411 and an arc-shaped plate 412 disposed on the first bracket body 411 . The clip 422 is arc-shaped. The shapes of the arc-shaped plate 412 and the clip 422 are similar to the profile of the pipe wall of the steel pipe 1, so that the contact area between the arc-shaped plate 412 and the pipe wall of the steel pipe 1 can be ensured, and at the same time, the contact area between the clip 422 and the steel pipe 1 can also be ensured. The contact area of ​​the pipe wall makes the clamping and fixing effect of the first force applying mechanism 42 better and more stable. The first support 41 also includes a first oil cylinder assembly for driving the first support body 411 to move. The first oil cylinder assembly includes an oil cylinder and ...

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Abstract

The invention provides a steel pipe straightening device and method. The steel pipe straightening device comprises a base body, a first roller assembly, a second roller assembly, a heating device, a first force applying device and a second force applying device, wherein the first roller assembly is arranged on the base body and is used for conveying steel pipes; the second roller assembly is arranged on the base body and is located between an input roller and an output roller; the heating device can heat the bent portions of the steel pipes; the first force applying device is fixedly arrangedon the base body, the moving direction of the first force applying device is perpendicular to the conveying direction of the steel pipes, and the first force applying device comprises a first supportand a first force applying mechanism movably arranged on the first support; and the second force applying device is located on the side, away from the input roller, of the output roller, and the bentportions of the steel pipes are located between the output roller and the second force applying device and can deform to be straightened under the combined action of the first force applying mechanismand the second force applying device. By the adoption of the technical scheme, the problem of re-cutting caused by bent ends of steel pipes in relevant techniques is effectively solved.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a steel pipe straightening equipment and a steel pipe straightening method. Background technique [0002] Steel pipe straightening equipment can eliminate bending and radial deformation of steel pipes during rolling, heat treatment or transportation. With the continuous improvement of market requirements for the strength of steel pipes, high strength means high deformation resistance, which makes it more and more difficult to control the straightness of steel pipes. [0003] The full-length straightness of the steel pipe is mainly guaranteed by the multi-roller straightening machine. For the steel pipe with a strength exceeding 1000MPa, the deformation resistance is reduced by temperature-leveling (≥580°C) to improve the straightening effect. The local bending of the steel pipe is corrected by the three-point pressure straightening method, but the three-point pressure straighteni...

Claims

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Application Information

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IPC IPC(8): B21D3/14B21D43/08
CPCB21D3/14B21D43/08
Inventor 黄佑启田研周勇肖松良张垂贵赵勤彭先明夏文斌王世明王勇左国锋
Owner HENGYANG VALIN STEEL TUBE
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