Pipe extrusion type quick eccentricity adjusting operation method

Abstract

The invention relates to a pipe extrusion type quick eccentricity adjusting operation method, and overcomes the defects in the prior art. According to the technical scheme, the method comprises the following steps that S1, a preheated mold core is mounted on a mold core seat, a mold sleeve pressing over is mounted to press a mold sleeve, and the end surface of a pipe extrusion type mold core opening extends out of or is flush with the end surface of a mold sleeve opening; S2, the uniform adjustment of the distance or the gap between the mold core and the mold sleeve is observed, and then a mold adjusting screw is locked; S3, an extruder main machine is started, the plastic is extruded in tubular from a mold, and the change condition of the instantly extruded tubular object is observed; S4,the mold adjusting screw is adjusted; S5, the cross section is cut and verified until the instantly extruded tubular object symmetrically flows out in parallel and then droops; and S6, after the verification is qualified, a conductor / wire core is extruded at a normal speed.

Description

technical field [0001] The invention relates to a cable production method, in particular to a pipe-squeezing type quick eccentric adjustment operation method. Background technique [0002] In wire and cable manufacturing, the most common type of plastic extrusion waste is eccentricity, and the accuracy of eccentricity plays a vital role in the quality of cable products and the production loss of raw materials. Therefore, it is of great significance for an extrusion worker to master the "mold adjustment" technology proficiently. [0003] The so-called "mold adjustment" is to adjust the position of the mold core and the mold sleeve so that the extruded wires will not be eccentric and meet the qualified appearance and other requirements. This is also something that must be taken seriously at the beginning of extrusion. Extrude the wire at a low speed and accelerate to the normal production speed only after confirming that there is no eccentricity. [0004] The conventional ad...

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Problems solved by technology

[0015] The purpose of the invention is to overcome the conventional "mold adjustment" method in the current scheme, which is generally carried out in a single way. The action is cumbersome and requires repeated sampling several times to succeed, which not only wastes the die adjustment machine head material, conductor core wire and power consumption It also wastes time and cannot achieve energy-saving and high-efficiency production. Conventional mold adjustment mostly relies on experience to operate, which has limitations and accuracy cannot be guaranteed. A squeeze-type quick eccentricity adjustment operation method is provided.

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