Core rod cycle device for drawing and extending hydraulic machine

Abstract

A mandril circulation device used for pulling and extending a pressing machine relates to an auxiliary device for pulling and extending the pressing machine. The mandril cooling and lubricating of the prior art has the disadvantages of production time occupying, long period, low efficiency, short continuous service life of the mandri, uneven manual lubricant coating as well as time and labor waste. The invention comprises a carrier roller supporting device, two machine trays and a stepping mechanism. Three mandril stations are arranged outside the pressing machine and the mandril of each station is supported by the carrier roller. The mandril on the cooling and lubricating stations can rotate. Two track beams are arranged on the upward side of the mandril and the two machinery trays operate on the track beams. A lifting device provided with a gripper is arranged on the machinery tray. Four sets of vertical lifting cylinders of the stepping mechanism are connected with the tracks and a stepping beam, thus being able to lead the tracks and the stepping beam to life vertically. The stepping beam is driven by a horizontal stepping cylinder and can move horizontally along the tracks. The invention has the advantages of shortening the manufacture period, improving the working efficiency, prolonging the service life of the mandril and improving the machinery automatization of the pressing machine.

Description

technical field [0001] The invention relates to auxiliary equipment for drawing presses for the production of bottles or tubes. Background technique [0002] The stretching press is mainly used to produce bottles of various specifications. It is to put the punched preform on the mandrel in the hot state and draw it in the die to make the wall thickness of the preform thin. , The length is increased, and steel cylinders with different wall thicknesses and lengths are produced. The working environment of the mandrel used in production is harsh. During the production process, it is greatly affected by high temperature and friction. Therefore, after drawing a preform, the mandrel needs to be cooled and lubricated. The traditional way is to manually apply lubricant, artificially spray and cool with water, and reuse a mandrel. When replacing a new mandrel, because the temperature is too low, the mandrel needs to be heated. At present, the heating is also manual. [0003] The di...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the prior art are: 1. Manually cooling and lubricating the mandrel in the drawing and stretching press takes up the production time, the cycle is long, and the efficiency is low; 2. A mandrel is used continuously and repeatedly, and the life of the mandrel is greatly shortened; 3. 1. The inner mandrel of the press cannot be rotated, and the artificial lubricant is applied unevenly, resulting in uneven metal flow of the preform and difficulty in removing the bottle; 4. It is difficult to control the temperature of artificial water spray cooling. Once the cooling is excessive, the mandrel needs to be reinstalled heating, time consuming

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