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Seam enlarging mechanism for pre-backward bending processing

A technology for processing front and back bending, which is applied in the field of seam expansion mechanism, and can solve problems such as the pipe tube stuck on the machine, the machine cannot operate normally, and the steel pipe product cannot meet the precision requirements, etc.

Inactive Publication Date: 2012-01-25
SUZHOU WEIDA WELDING & CUTTING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tube formed by the above forming process will have a straight section at the edge of the opposite seam, resulting in a "peach-shaped" tube after forming, so the steel tube product cannot meet the technical requirements for diameter size and roundness precision requirements, so We need to perform a backbending process on the tube, but during the backbending process, due to the small gap, the tube may be stuck on the machine and the machine cannot operate normally

Method used

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  • Seam enlarging mechanism for pre-backward bending processing
  • Seam enlarging mechanism for pre-backward bending processing

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Embodiment Construction

[0009] Such as figure 1 A seam expansion mechanism before backbending treatment is shown, including a support 1, a support 2 is provided on the support 1, and a rolling wheel 3 is installed on the support 2; the support 2 is "L" shaped and Pivoted on the support 1, the scroll wheel 3 is installed on the upper end of the "L"-shaped support, and an oil cylinder 4 is installed on the lower end of the "L"-shaped support, and the oil cylinder 4 is pivotally connected to the support 1.

[0010] The mechanism drives the "L"-shaped support to rotate through the extension of the oil cylinder shaft, and the "L"-shaped support drives the rolling wheel 3 at the upper end to move upward, and the arc surface of the rolling wheel 3 separates the gap of the tube to achieve the purpose of expanding the gap. The structure is simple and practical, and the use of oil cylinders facilitates automation and reduces costs.

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Abstract

The invention relates to a seam enlarging mechanism for pre-backward bending processing. The mechanism which comprises a bearer is characterized in that: a support which is arranged on the bearer is provided with a rolling wheel; the support which has an L shape is pivoted to the bearer, the rolling wheel is arranged on the upper end of the L-shaped support, and an oil cylinder which is arranged on the lower end of the L-shaped support is pivoted to the bearer; the seam enlarging mechanism which is adopted is convenient for a pipe barrel to enter the backward processing and not be locked; and the L-shaped support which can rotate is adopted and the bottom of the L-shaped support is provided with the oil cylinder, so the telescoping of the oil cylinder is convenient for adjusting the up and down movement of the rolling wheel, thereby the width of a required seam is adjusted.

Description

technical field [0001] The invention relates to an auxiliary mechanism for forming tubes in the mechanical field, in particular to a seam expanding mechanism used before back bending. Background technique [0002] Both coil forming and roll forming in the production process of large straight seam submerged arc welded pipes cannot perform plate edge bending on the steel plate before forming. Steel tubes get exactly round steel tubes. The tube formed by the above forming process will have a straight section at the edge of the opposite seam, resulting in a "peach-shaped" tube after forming, so the steel tube product cannot meet the technical requirements for diameter size and roundness precision requirements, so We need to perform a backbending process on the tube, but during the backbending process, due to the small gap, the tube may be stuck on the machine and the machine cannot operate normally. Contents of the invention [0003] The technical problem to be solved by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/08
Inventor 钟洪波邓卫东
Owner SUZHOU WEIDA WELDING & CUTTING TECH
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