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Rolling type joist steel low-temperature straightening device

A rolling and driving device technology, which is applied in the field of steel deep processing, can solve the problems of secondary damage and low correction accuracy of joist steel, and achieve the effects of avoiding secondary damage, high correction efficiency and stable operation

Pending Publication Date: 2019-03-22
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a low-temperature correction device for rolling joist steel, which can solve the technical problems of low correction precision and susceptibility to secondary damage of joist steel in the prior art

Method used

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  • Rolling type joist steel low-temperature straightening device
  • Rolling type joist steel low-temperature straightening device
  • Rolling type joist steel low-temperature straightening device

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Experimental program
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Embodiment

[0054] Such as Figure 1 to Figure 11 As shown, a first web straightening device 10, a first outer flange straightening device 2, a first inner flange straightening device 12, a first driving device 11, a third driving device 3, and a first web straightening device 1 are installed on the first worktable 1. Four driving devices 13; two first web straightening devices 10 and two first driving devices 11, located on both sides of the first outer flange straightening device 2 and the first inner flange straightening device 12 respectively. A second web correction device 8, a second outer flange correction device 14, a second inner flange correction device 5, a second drive device 7, and a fifth drive device 6 are installed on the second workbench 4; the second web The straightening device 8 and the second driving device 7 are two, respectively located on both sides of the second outer flange straightening device 14 and the second inner flange straightening device 5; two second web...

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Abstract

The invention belongs to the technical field of steel deep machining, and particularly relates to a rolling type joist steel low-temperature straightening device. The rolling type joist steel low-temperature straightening device comprises an installation seat, a first workbench, a second workbench, first web straightening devices, second web straightening devices, a first outer side flange straightening device, a second outer side flange straightening device, a first inner side flange straightening device and a second inner side flange straightening device; the first workbench and the second workbench are installed on the installation seat; the first web straightening devices, the first outer side flange straightening device and the first inner side flange straightening device are installed on the first workbench; and the second web straightening devices, the second first outer side flange straightening device and the second inner side flange straightening device are installed on the second workbench. According to the rolling type joist steel low-temperature straightening device, the straightening precision is high, the deforming problem of a joist steel finished product can be solved, and secondary damage to joist steel is avoided; and meanwhile, the rolling type joist steel low-temperature straightening device is small in occupied area and convenient and flexible to install.

Description

technical field [0001] The invention belongs to the technical field of deep processing of steel materials, in particular, the invention relates to a low-temperature straightening device for rolling joist steel. Background technique [0002] Joist steel is a new type of special-shaped cross-section steel used in the production of cranes and other frame-type structures. Since the cross-section of joist steel is not evenly distributed, the steel is subjected to uneven force during rolling. After cutting to length, the steel will suffer Cooling stress affects easy cooling side bending. The cross-sectional structure of the joist steel is as Figure 11 As shown, the top and bottom of the section are flanges, the left and right sides are webs, the upper side of the top flange and the lower side of the bottom flange are the outer flanges, the lower side of the top flange, the upper side of the bottom flange for the inner flange. In order to ensure the machining accuracy of the joi...

Claims

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Application Information

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IPC IPC(8): B21D3/02B21D47/01
CPCB21D3/02B21D47/01Y02P70/10
Inventor 王川宋红燕李雪涛顾晓庆李发宏林雅琴孙波李山峰张戈
Owner SHANDONG IRON & STEEL CO LTD
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