Device used for guaranteeing straightness of drawing pipe

Abstract

The invention provides a device used for guaranteeing the straightness of a drawing pipe. The device structurally comprises two finished pipe clamping braking devices, a double chain type structure and a clamp device. One of the finished pipe clamping braking devices is arranged at the head end of a drawing machine body, and the other of the finished pipe clamping braking devices is arranged in the middle of the drawing machine body. According to the specific double chain type structure, a chain automatic tensioning device is arranged in the position of a drawing die holder and die at the head end of the drawing machine body, and a drawing chain device is arranged in the position of a drawing trolley at the tail end of the drawing machine body correspondingly. The clamp device is arranged on the drawing trolley. According to the device provided by the invention, a drawing pipe is effectively fixed through the finished product clamping braking device, through fixing of a clamp, it is guaranteed that the center of a chain in the drawing trolley operating process is consistent with the drawing center, the drawing process is more stable, and the steel pipe drawn finished product production efficiency is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of material forming devices, and relates to a cold drawing unit for steel pipes, in particular to a device for ensuring the straightness of drawn pipes. Background technique [0002] Pipe is a common profile in people's life. The production process of cold-drawn steel pipe is a common process for pipe forming. When the existing cold-drawing machine is doing the drawing operation, because the drawn pipe belongs to the plastic deformation of the metal, the steel pipe will be deformed during the drawing process. Therefore, in the drawing process of the steel pipe, as the length of the steel pipe increases, its straightness is difficult to guarantee, which seriously affects the production efficiency of the drawn finished product. Contents of the invention [0003] In view of the above situation, the object of the present invention is to provide a device for ensuring the straightness of the drawn pipe, which ca...

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Problems solved by technology

[0002] Pipe is a common profile in people's life. The production process of cold-drawn steel pipe is a common process for pipe forming. When the existing cold-drawing machine is doing the drawing operation, because the drawn pipe belongs to the plastic deformation of the metal, the steel pipe will be damaged during the drawing process. It produces a large elastic force, so in the drawing process of the steel pipe, as the length of the steel pipe increases, its straightness is difficult to guarantee, which seriously affects the production efficiency of the drawn product

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