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Metal welded pipe forming device with common roller and production method thereof

A forming device and welded pipe technology, which is applied in the field of metal welded pipe equipment, can solve the problems of high cost, large number of rollers, and affecting production output, etc.

Active Publication Date: 2019-05-21
杨元恒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, it takes a long time to change the roll, which affects the improvement of production output.
The common roll forming machine also adopts common roll technology, but the structure is complex, the number of rolls is large (only the outer rolls need 60 to 100), the cost is expensive, and the adjustment is very complicated

Method used

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  • Metal welded pipe forming device with common roller and production method thereof
  • Metal welded pipe forming device with common roller and production method thereof
  • Metal welded pipe forming device with common roller and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] see Figure 5 ~ Figure 16 As shown, a metal welded pipe forming device with a common roller, the metal welded pipe forming device is located between the uncoiler in the metal welded pipe unit and the finishing section in the forming machine, the metal welded pipe forming device includes a rolling deformation The first small roll group for tube blanks with an angle θi≤180° and for rolling deformation angles at 240°≥θ i The second small roll group for tube blanks in the >180° interval and the rolling deformation angle θ i For the third small roll group of >240° tube blank, the first small roll group adopts the arrangement structure of three inner small rolls and three outer small rolls, and the second small roll group adopts three inner small rolls and three outer small rolls. The arrangement structure of three outer small rollers, the third small roller group adopts the arrangement structure of five inner small rollers and five outer small rollers, and the tube blank pa...

Embodiment 2

[0059] see Figure 5 ~ Figure 16 As shown, a metal welded pipe forming device with a common roller of the present invention is used for the rough forming section in the metal welded pipe production line, and it is suitable for rolling metal welded pipes with a diameter of φ610mm~φ1120mm. For this purpose, a φ1120 unit is designed, and the unit It can produce welded pipes with diameters of φ610mm, φ660mm, φ711mm, φ762mm, φ864mm, φ965mm, φ1016mm and φ1120mm. This embodiment takes the finished metal welded pipes with specifications of φ610mm×6.0mm and φ1120mm×12mm as examples to elaborate the setting, calculation, equipment adjustment and production method of various technical parameters of the φ1120 unit.

[0060] (1) Use the circular forming method for pass design.

[0061] (2) The rough forming section adopts the common combination roll pass design.

[0062] The specifications of the finished welded pipe are:

[0063] Minimum diameter φ610×6.0mm;

[0064] Maximum diameter ...

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Abstract

Disclosed is a metal welded pipe forming device with a common roller and a production method thereof. The metal welded pipe forming device comprises a first small roller set, a second small roller setand a third small roller set. A pipe blank is conveyed by a clamping-conveying roller, a belt-drive fine-forming roller and a sizing roller in a metal welded pipe production line. Combined roller bending technology is adopted, a set of small rollers are used for replacing a set of existing large-diameter horizontal rollers and vertical rollers at the rough-forming stage, vertical rollers are notneeded, when specifications of welded pipes are changed, only the positions of the small rollers need to be adjusted, thus equipment investment is lowered substantially, and production efficiency is improved greatly.

Description

technical field [0001] The invention relates to the technical field of metal welded pipe equipment, in particular to a metal welded pipe forming device with common rollers and a production method thereof. Background technique [0002] The welded pipe unit generally uses strip steel coils as raw materials. The raw materials enter the rough forming section 10-2 and the fine forming section 10-3 of the forming machine through uncoiling and pinch rollers 10-1 to bend and deform, and are welded and fixed by welding rollers 10-4. Diameter section 10-5 is sized and cut off to complete the generation of welded pipes, see figure 1 As shown, these processes are continuously carried out on a production line, and the rough forming section 10-2, the fine forming section 10-3 and the sizing section 10-5 are all equipped with power transmission systems. The rough forming section 10-2 is provided with a large-diameter horizontal roll 10-2-1 and a vertical roll 10-2-3, and the finishing sec...

Claims

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Application Information

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IPC IPC(8): B21D5/12B21C37/08
Inventor 杨元恒
Owner 杨元恒
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