Special straightening machine for cold drawn stainless steel composite round tube

A compound round and straightening machine technology, applied in the field of cold-drawn steel pipe straightening, can solve the problems of difficulty in reaching the national standard for bending, low work efficiency, high labor intensity, etc., and achieves good wear resistance, good protection, and cost. low effect

Inactive Publication Date: 2014-05-07
WUHU XINLI PIPELINE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic manufacturers basically use the most primitive manual straightening or jack pressure straightening, which not only has low work efficiency and high labor intensity, but also the bending degree after straightening is difficult to meet the national standard

Method used

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  • Special straightening machine for cold drawn stainless steel composite round tube
  • Special straightening machine for cold drawn stainless steel composite round tube

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The specific implementation manner of the present invention will be described in further detail below through the description of the best embodiment with reference to the accompanying drawings.

[0014] as attached figure 1 As shown, a special straightening machine for stainless steel composite round pipe is characterized in that it is composed of a transmission system 14, a body 16, a base 17 and a corresponding system of lead-in rollers, straightening rollers, and lead-out rollers.

[0015] According to the outer diameter of the stainless steel composite pipe to be straightened, install all the lead-in rollers, lead-out rollers and straightening rollers of the corresponding specifications, adjust the upper and lower and left and right optimal positions and reductions of the driving rollers listed above, and the stainless steel composite pipe to be straightened 18 It is introduced by two sets of lead-in rolls 1, 2, 8, and 9, repeatedly bent and corrected by straighteni...

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Abstract

The invention discloses a special straightening machine for a stainless steel composite round tube, which is characterized by consisting of a transmission system, a machine body, a base, lead-in rollers, straightening rollers and lead-out rollers, wherein the lead-in rollers, the straightening rollers and the lead-out rollers are correspondingly configured. The transmission system is driven by a 3 KW DC (Direct Current) speed regulation motor, has a rotating speed of 900 to 1,440 revolutions per minute and drives upper rows of drive rolls of the lead-in rollers, the straightening rollers and the lead-out rollers by a transmission shaft, a chain wheel and a chain. The lead-in rollers, the straightening rollers and the lead-out rollers are all characterized by being made of industrial nylon 1010, having basic appearance sizes of outer diameters of phi 200 to phi 220 mm and heights of 80 to 100 mm and being provided with phi 30 center holes and slide stop keyways.

Description

technical field [0001] The invention relates to the technical field of straightening cold-drawn steel pipes, in particular to a special straightening machine for cold-drawn stainless steel composite round pipes. Background technique [0002] The cold-drawn stainless steel composite round pipe is composed of a thin-walled stainless steel outer pipe sleeved on the periphery of a carbon steel pipe, and is compounded by synchronous cold drawing. Because of the strong cold extrusion deformation stress in the processing process, different degrees of bending will occur. Straightening is an essential key process in the production process of cold drawn stainless steel composite round tubes. [0003] In the circular pipe straightening machines disclosed on the market, the straightening rollers are made of die steel, have high power, and belong to universal rubbing, and are basically specially designed for straightening cold-drawn seamless steel pipes. Due to the thin wall thickness o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/02
Inventor 汪正友
Owner WUHU XINLI PIPELINE TECH
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