Pipe drawing machine for centrifugal pouring equipment of nodular cast iron pipe

Abstract

The present invention relates to the technical field of casting, and discloses a pipe drawing machine for centrifugal pouring equipment of a nodular cast iron pipe, and the pipe drawing machine includes a workbench; left and right sides of the upper surface of the workbench are provided with fixed plates, and front and rear sides of the fixed plates are provided with guide rods; the middle parts of the guide rods are in sliding connected to a retaining bracket; the middle parts of the fixed plates are in rotatable connection with a screw rod; the middle part of the screw rod is in threaded connection with the middle part of the retaining bracket; the middle part of the right side of the retaining bracket is provided with a hydraulic cylinder; the piston rod of the hydraulic cylinder is fixedly connected to a baffle; the upper end of the baffle is connected to the right end of a sliding rod; the right end of the sliding rod is provided with a sliding plate; front and rear sides of the sliding plate are provided with abdication grooves; the middle parts of the abdication grooves pass through and are connected with rotation rods, and the middle parts of the rotation rods are in rotatable connection with rotation shafts. The present invention is applicable to a pipe drawing machine for centrifugal pouring equipment of a nodular cast iron pipe, and the whole device is simple in structure and convenient to operate, and the operating difficulty for operators is reduced; besides, due to the steady structure of the device, the pipe drawing machine is relatively low in later maintenance cost and suitable for popularization and use.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a pipe pulling machine used for centrifugal casting equipment for ductile iron pipes. Background technique [0002] Ductile iron pipe refers to the pipe made by high-speed centrifugal casting of centrifugal ductile iron machine after casting molten iron above No. 18 with the addition of nodularizer, referred to as ball pipe, ductile iron pipe and ductile cast pipe. Mainly used for the transportation of tap water, it is an ideal material for tap water pipelines. [0003] Ductile iron pipes are used in underground water pipes. During production, they are centrifugally poured with rotating molds, and the formed pipes must be pulled out of the molds. [0004] Chinese patent (notification number: CN104550819A) discloses a tube pulling machine for centrifugal casting equipment of ductile iron pipes, including a frame, a tube pulling device, a winch driving device, and a chuck tensioni...

AI Technical Summary

Problems solved by technology

The device can effectively pull out the ductile iron pipe, and ensure that the cast iron pipe mold, the ductile iron pipe and the pipe pulling device are drawn in a straight line when pulling out the pipe, so as to avoid the twisting of the ductile iron pipe during drawing and damage the cast iron pipe mold ; A centrifugal extubation machine for ductile iron pipes that can be quickly and effectively started and stopped to improve work efficiency, but the overall operation of the device is relatively complicated and inconvenient to use, so the device needs to be improved

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