Material inlet guide hopper for automatic plastic bottle blowing machine

Abstract

The invention relates to a material inlet guide hopper for an automatic plastic bottle blowing machine, which comprises a material inlet mechanism, wherein the material inlet mechanism is provided with a material inlet, a guide hopper is arranged on the material inlet, the guide hopper comprises a hopper body surrounded by a plurality of metal strips at intervals, the upper part of the hopper body is a horn mouth, the top end of the horn mouth is provided with a metal connecting ring, a metal installing ring is arranged at a connecting part of the bottom of the horn opening and the hopper body and is matched with the opening edge of the material inlet, and the hopper body is inserted into the material inlet. When a pipe blank enters the horn mouth after being heated, the pipe blank entering is smooth, when the pipe blank slides, line contact is realized with the metal strips of the guide hopper, the contact area is small, the heat loss is small, in addition, the surfaces of the metal strips are smooth, and the friction factor is small, so the pipe blank sliding speed is high, the pipe blank can reach a position in the mold in time, and the production efficiency is ensured. The upper part of the guide hopper is made into the horn mouth, a guide effect is realized, and the pipe blank smoothly slides in the guide hopper, so the deformation of the pipe blank caused by to-and-fro collision is avoided, and the product quality is ensured.

Description

technical field [0001] The invention relates to a guide hopper for a feeding port of an automatic plastic bottle blowing machine, which belongs to the technical field of plastic machinery. Background technique [0002] At present, there is a type of automatic plastic bottle blowing machine, and its feeding mechanism is as follows: Figure 4 As shown, the entire mechanism 1' is made of plastic and is in the shape of a herringbone. Its structure includes a feed port 11' and a feed slideway 12', wherein the feed port 11' is in the shape of a square straight tube, and the heated tube embryo is heated from the The device enters the feed port 11' and then reaches the mold along the feed slide 12'. But this kind of feeding port 11' has the following disadvantages: 1. The cross-sectional area of ​​the feeding port of the square straight tube is small, and the positioning requirements of the tube embryo transferred from the heating device are high, and it is difficult to deviate from...

AI Technical Summary

Problems solved by technology

But this kind of feeding port 11' has the following disadvantages: 1. The cross-sectional area of ​​the feeding port of the square straight tube is small, and the positioning requirements of the tube embryo transferred from the heating device are high, and it is difficult to deviate from the feeding; The contact area between the openings 11 is large, and the heated tube embryo dissipates heat quickly and is easy to cool and harden, which affects the subsequent stretching and blowing process; 3. Due to the large contact area between the tube embryo and the feeding port 11', and the friction coefficient of the plastic It is also large, which affects the sliding speed of the tube embryo in the feed port 11', and finally causes the tube embryo to fail to reach the mold in time, which reduces the production efficiency, and the slow sliding speed of the tube embryo means long heat dissipation time, which also affects the blowing quality; 4. Due to the poor orientation of the feed inlet of the square straight tube, the tube embryo slides in the tubular feed inlet 11' and is prone to collision and rolling back and forth, while the newly heated tube embryo is relatively soft and easily deformed during the collision process, affecting the final product molding quality

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