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Symmetry type three-roller plate roll barrel no-remain straight flange rolling technique

A symmetrical, roll-to-roll technology, applied in the field of metal machining, can solve the problems of corner waste, waste, etc.

Inactive Publication Date: 2006-02-08
河南科隆石化装备有限公司
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  • Summary
  • Abstract
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Problems solved by technology

[0002] In the past, when using the symmetrical three-roller plate rolling machine to machine the cylinder, the operation is easy and the forming is more accurate. However, both ends of the steel plate cannot pass through the maximum bending moment point, so they cannot be curled to form a straight edge, resulting in corner waste and waste.

Method used

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  • Symmetry type three-roller plate roll barrel no-remain straight flange rolling technique
  • Symmetry type three-roller plate roll barrel no-remain straight flange rolling technique

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Embodiment Construction

[0007] The symmetrical three-roll plate rolling machine mainly consists of an upper roll and two lower rolls. The upper roll can rotate left and right on the steel plate, and the lower roll is the driving roll, which can rotate forward and reverse. In the past, the process of rolling steel plates is: put the steel plates including the remaining straight sides between the upper roll 1 and the lower roll 2, and then the upper roll 1 bends the steel plates downward. At this time, the inner layer of the bent part of the steel plate is subjected to When the outer layer is under tension, the bending distance in the middle of the two lower rollers 2 is the largest, reaching a plastic bending state, and then the two lower rollers 2 are driven to rotate, and the steel plate moves left and right by means of the friction between the steel plate and the rollers, and the At the same time, the upper roller 1 rotates, so that the steel plate becomes an arc-shaped plate with the same curvature...

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Abstract

The invention discloses a symmetrical reeling technology, which comprises the following steps: placing steel plate between upper roll and lower roll; reeling steel plate to curl plate with the same buckling and then C-type plate; blanking according to barrel medium caliber; adding an additional number of 200-500mm to crimp radius; after C-type plate being reeled, welding the two surplus straight flanges to form a plate; and placing it on lapping machine to eliminate surplus straight flange. The invention has the advantages of saving steel and convenient using.

Description

technical field [0001] The invention belongs to basically no-cutting metal machining, in particular to a processing technique for rolling a cylindrical body without remaining straight edges by using a symmetrical three-roll plate rolling machine. Background technique [0002] In the past, when using symmetrical three-roller coiling to machine the cylinder, the operation is easy and the forming is more accurate. However, both ends of the steel plate cannot pass through the maximum bending moment point, so they cannot be curled to form a straight edge, resulting in corner waste and waste. Contents of the invention [0003] The invention aims to provide a processing technology that can eliminate the remaining straight edges when using a symmetrical three-roll plate bending machine cylinder body, improve the utilization rate of steel plates, reduce waste of resources, and is convenient to apply. [0004] The object of the present invention is achieved in this way, the cylinder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/08
Inventor 李延广郭呈方王松海刘新红
Owner 河南科隆石化装备有限公司
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