Spiral welding mesh pipe rolling welding machine

Abstract

The invention relates to a spiral welding mesh pipe rolling welding machine. The spiral welding mesh pipe rolling welding machine is characterized in that the bending deformation force of a mesh belt is applied to a mesh belt and a spiral pipe blank through an upper rolling wheel and then is transmitted to small core shafts and lower rolling wheels to enable the mesh belt to be formed through bending in one time between the three rolling wheels (comprising the upper rolling wheel) which are arranged in a triangular shape namely in the peripheral direction. The triangle center is provided with the small core shafts which are parallel to rolling wheel shafts and the small core shafts which are hanging arm servo shafts play roles in assisting forming and sizing diameter. According to the spiral welding mesh pipe rolling welding machine, the bending forming mode is different from the forming mode that a spiral welding pipe forming machine unit or a three-rod veneer reeling machine only presses part of steel plates to be in arc shapes.

Description

[0001] technical field [0002] The invention belongs to coil welding equipment for spirally welded mesh pipes, suitable for coil welding of mesh pipes with a diameter of φ6-φ426 mm and a wall thickness of δ0.2-δ5 mm, and also suitable for the manufacture of thin-walled spiral welded pipes . Mainly used in petroleum, chemical, electric power, food, environmental protection, hydrogeological industries, as the inner support frame and outer protective cover of various filter elements, or directly as the original material filter. Background technique [0003] The existing mesh pipe generally adopts the straight seam welding structure, and the manufacturing process is: steel plate punching, expanding the width according to the diameter of the mesh pipe, shearing and blanking, plate rolling machine reel, welding straight seam, plate rolling machine straightening, the length Products that exceed the width of the steel plate or the width of the plate rolling machine need to be butt...

AI Technical Summary

Problems solved by technology

The disadvantages of the product are: low manufacturing precision, difficult to guarantee the diameter; low precision of roundness and straightness, due to the large format and uneven thickness of the steel plate, resulting in uneven wall thickness of the mesh tube, resulting in mechanical properties such as pressure resistance and tensile properties of the product Can not meet the use requirements

In the industry, it is generally used to increase the thickness of the material to improve the mechanical properties of the product, or to use the machining method of drilling thick-walled seamless steel pipes to ensure the mechanical properties of the product, which has caused a lot of waste

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