Core rod positioning system of double roller type cold pilger mill

Abstract

The invention discloses a core rod positioning system of a double roller type cold pilger mill. The system is mainly composed of a machine base, a core rod, a travel switch and a main motor. According to the system, the travel switch is connected with the main motor, and a travel switch spring probe is in lap joint to the position of 2 cm away from the tail end of the core rod; and when the core rod moves forwards by more than 2 cm, the travel switch spring probe disengages from the core rod, the travel switch is turned off, the mill is stopped, and the core rod stops moving forwards. According to the core rod positioning system of the double roller type cold pilger mill, manual guarding during former starting is simplified. The mill damage accident caused when the core rod forwards moves by the excessively long distance is avoided. Losses are reduced, manpower and material resources are reduced, the work efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to a positioning system for a mandrel rod of a double-roller cold-rolled tube. Specifically, it relates to a system in which the core rod is separated from the spring probe of the travel switch after the core rod moves forward by more than 2 cm, and the switch is closed, thereby realizing the system for stopping the forward movement of the core rod. Background technique [0002] During the rolling process of the original two-roller cold-rolled pipe mill, the chuck vibrates continuously, and it may become loose after a long time. Sometimes due to negligent operation, the chuck is forgotten after loading the pipe. It moves forward during the conveying process, because the front 180cm of the core rod head is a straight rod, and the pipe rolling mold is matched with it, and the rear 470cm is a tapered rod. When the core rod moves forward more than 180cm, the tapered part enters the mold and the mold will be damaged. , while damaging ...

AI Technical Summary

Problems solved by technology

[0002] During the rolling process of the original two-roller cold-rolled pipe mill, the chuck vibrates continuously, and it may become loose after a long time. Sometimes due to negligence in operation, the chuck is forgotten after loading the pipe. The conveying process moves forward, because the front 180cm of the core rod head is a straight rod, and the pipe rolling mold is matched with it, and the rear 470cm is a tapered rod. When the core rod moves forward more than 180cm, the tapered part enters the mold and the mold will be damaged. , while damaging the core rod

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