Extrusion molding device for helical weld pipe production line

Abstract

The invention discloses an extrusion molding device for a helical weld pipe production line. The extrusion molding device comprises a frame and a fixed pulley set. A top wheel is fixed to the bottom end of the interior of the frame. A supporting wheel is arranged under the top wheel. The fixed pulley set is fixed to one side of the supporting wheel. A mounting shaft is mounted on one side of the interior of the frame. A spring is arranged in the mounting shaft. One side of the spring is connected with a movable shaft. The upper portion of the movable shaft is provided with grooves. Clamping blocks are mounted in the grooves. A limiting block is fixed to the upper portions of the clamping blocks. A baffle is fixed to one end of the movable shaft. An extrusion wheel set is mounted at the upper end of the interior of the frame. A handle is arranged on one side of the upper portion of the extrusion wheel set. A lead screw is arranged on the other side of the upper portion of the extrusionwheel set. The upper end of the lead screw is sleeved with a fixing nut. The extrusion molding device for the helical weld pipe production line is used for producing helical weld pipes in an externalwrapping extrusion molding mode and is convenient to adjust when producing different diameters of weld pipes.

Description

technical field [0001] The invention relates to the technical field of spiral welded pipes, in particular to an extrusion molding device for a spiral welded pipe production line. Background technique [0002] Spiral welded pipe is made by rolling low-carbon structural steel or low-alloy structural steel strip into a tube billet according to a certain helical angle, and then welding the pipe seams. Extrusion is required when rolling into a tube billet Device, existing spiral welded pipe production line extrusion molding device has the following problems: [0003] 1. Generally, the inner mold is used for forming. This forming method is to use a mold with a larger diameter for the welded pipe. When producing welded pipes with different diameters, it is necessary to replace the mold, which takes a long time and is inefficient; [0004] 2. The rollers are directly used, the angle is fixed and cannot be adjusted, and the internal cavity space of the frame of the inner mold type f...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned deficiencies, the present invention provides an extrusion molding device for a spiral welded pipe production line to solve the problem of adopting the inner mold type forming proposed in the above-mentioned background technology. When producing welded pipes with different diameters, it is necessary to replace the mold, which takes a long time, has low efficiency and The internal cavity space of the inner mold forming method frame is small, and it cannot be directly welded after rolling the blank, and the production speed is slow

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