Pipe bender

Abstract

The invention provides a pipe bender. The pipe bender comprises a main shaft and a mould fixedly connected with the side surface of the main shaft, as well as a driving structure fixedly connected with one end part of the main shaft, wherein the mould comprises a fixed mould and a plurality of movable moulds in position corresponding connection with the fixed mould; the fixed mould is provided with a continuous fixed mould contact curved surface; a continuous movable mould contact curved surface is arranged at the corresponding position of each of the movable moulds; and after the fixed mould is fixedly connected with the plurality of movable moulds, the fixed mould contact curved surface can be seamlessly fastened with the movable mould contact curved surfaces to form a loop laying pipe channel. According to the scheme provided by the invention, as the fixed mould and the movable moulds, which are provided with the continuous curved surfaces, are provided to form the loop laying pipe channel, bending production of loop laying pipes can be performed in the loop laying pipe channel; and as the curved surfaces are continuous, the curves of the loop laying pipes can be accurately controlled to ensure smooth curve transition and continuous and non-fluctuating curvature of the loop laying pipes, and accordingly, the loop laying pipes with high bending precision can be obtained.

Description

technical field [0001] The invention relates to the technical field of spinning pipe bending and forming equipment, in particular to a pipe bending machine. Background technique [0002] The laying machine is an important equipment in the high-speed wire production line unit. Its main movement process is: the motor transmits the rotational motion to the hollow shaft of the laying machine through a pair of spiral bevel gears. The steel rolled and formed by the high-line finishing mill is pinched by the pinch roller, enters the hollow shaft of the high-speed rotating laying machine, and then penetrates into the spinning tube, and is deformed by force through the spinning tube. The steel material changes from a high-speed linear motion into a nearly stationary circle, scattered on the air-cooled roller table, and then packed into a wire coil, which is commonly known as a wire rod. [0003] The part in the laying machine that deforms the wire into a loop is the laying tube, whi...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a pipe bender to solve the problem of low bending precision of the spinning pipe in the prior art

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