Drawing drive mechanism in a seamless steel pipe drawing machine
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG TIANYANG STEEL TUBE CO LTD
- Publication Date
- 2021-04-27
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Abstract
Description
technical field
[0001] The invention relates to a cold drawing machine, in particular to a drawing driving mechanism in a seamless steel pipe drawing machine. Background technique
[0002] Existing seamless steel pipes generally need to be processed into high-precision steel pipes by cold drawing machines. That is, the seamless steel pipe is drawn by a cold drawing machine, so that the seamless steel pipe passes through the inner mold and the outer mold in the cold drawing machine to achieve a finished seamless steel pipe.
[0003] When the existing seamless steel pipe is drawn, the air pressure drives the jaws to move toward each other so that the jaws clamp the seamless steel pipe and drive the seamless steel pipe to move relative to the inner mold and the outer mold.
[0004] But only by air pressure to make the jaws clamp the seamless steel pipe, due to the large force when the seamless steel pipe is drawn, it is easy to cause the seamless steel pipe to break away from ...