Leveling device for raw materials for spiral submerged-arc welded pipe production

Abstract

The invention discloses a leveling device for raw materials for spiral submerged-arc welded pipe production. The leveling device comprises a case; a feeding opening is formed in one side of the case;the inner side of the feeding opening is provided with feeding guide rollers; a discharging opening is formed in one side of the case, wherein the one side of the case is far away from the feeding opening; discharging guide rollers are arranged inside the discharging opening; a lower fixing frame is arranged between the feeding guide rollers and the discharging guide rollers; the lower fixing frame is fixedly welded to the inner bottom end of the case; lower leveling rollers are uniformly and equidistantly disposed in the lower fixing frame; a pushing air cylinder is fixed to the inner top endof the case; four sets of guiding rods are welded to the inner top end of the case; a moving plate is fixed onto the pushing rod of the pushing air cylinder through a screw; and movement sleeves arewelded to the two ends of the two sides of the moving plate respectively. The leveling device of the invention has the advantages of reasonable structure and novel design. With the leveling device adopted, a leveling slit width can be adjusted according to the thickness of a raw material plate; the adjustment of the leveling slit width is relatively stable; the leveling slit width can be adjustedmore precisely; and therefore, the leveling quality of the raw material plate can be improved.

Description

technical field [0001] The invention relates to the technical field of spiral submerged arc welded pipe production, in particular to a leveling device for raw materials for spiral submerged arc welded pipe production. Background technique [0002] Spiral seam submerged arc welded steel pipe refers to a metal pipe with a spiral seam welded by submerged arc welding process, which can produce welded pipes with larger diameters from narrower billets, and can also be produced from billets with the same width Welded pipes with different pipe diameters have lower production cost, simple process, and are easy to produce large-diameter pipes. Most large-diameter welded pipes adopt the spiral seam submerged arc welding process. The spiral seam steel pipe welded by the automatic double-wire double-sided submerged arc welding process needs to be leveled before the strip steel coil raw material is extruded. There is a problem: it is inconvenient to adjust the seam width of the existing ...

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Problems solved by technology

[0002] Spiral seam submerged arc welded steel pipe refers to a metal pipe with a spiral seam welded by submerged arc welding process, which can produce welded pipes with larger diameters from narrower billets, and can also be produced from billets with the same width Welded pipes with different pipe diameters have lower production cost, simple process, and are easy to produce large-diameter pipes. Most large-diameter welded pipes adopt the spiral seam submerged arc welding process. The spiral seam steel pipe welded by the automatic double-wire double-sided submerged arc welding process needs to be leveled before the strip steel coil raw material is extruded. There is a problem: it is inconvenient to adjust the seam width of the existing leveling device for steel coil raw materials of different thicknesses, and the adjustment accuracy of the seam width is not high, so that the leveling quality of the steel coil raw materials is not high. For this reason, we Design a leveling device for raw materials for spiral submerged arc welded pipe production to solve the above problems

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