Plastic film extruding forming machine

Abstract

The invention discloses a plastic film extruding forming machine. The machine comprises a thermal melting hopper and a conveying pipe, wherein an extruding machine head and a driving motor are correspondingly arranged at two ends of the conveying pipe; the driving motor is electrically connected to an extruding screw, and the extruding screw is positioned in the conveying pipe and is used for pushing and extruding molten plastic; screw threads of the extruding screw fits the inner wall of the conveying pipe; and the thermal melting hopper at one end, close to the driving motor, of the conveying pipe communicates with the conveying pipe. The machine has the characteristics of being low in equipment cost, and capable of improving the quality of a plastic film.

Description

technical field [0001] The present invention relates to a kind of plastic woven bag production equipment, more specifically, relates to a kind of plastic film extruding molding machine. Background technique [0002] In the production process of plastic woven bags, it is necessary to melt the granular raw materials in the plastic film extruder and press them into plastic films. The working process of the traditional plastic film extruder is: convey the solid plastic particles into the conveying pipe through the hopper and the screw, then heat the solid plastic particles in the conveying pipe to melt them into plastic liquid, and finally squeeze the plastic liquid from one end of the conveying pipe Go out molding and obtain the plastic film that just makes. The disadvantages of the traditional plastic film extruder are: 1. The solid plastic particles are directly heated and melted in the delivery pipe, and the air mixed in the solid plastic particles is extruded together with...

AI Technical Summary

Problems solved by technology

The disadvantages of the traditional plastic film extruder are: 1. The solid plastic particles are directly heated and melted in the delivery pipe, and the air mixed in the solid plastic particles is extruded together with the plastic liquid after the solid plastic particles are melted into a plastic liquid. At this time, the plastic film produced will have point-like defects due to air bubbles, and the plastic film will easily break during further stretching or shredding; 2. The conveying pipe required for heating and melting solid plastic particles in the conveying pipe is relatively long, The rotary driving force required by the screw to squeeze solid plastic particles or plastic liquid is relatively large, resulting in increased equipment costs; 3. The solid plastic particles are heated in the conveying pipe, and the heating is not concentrated, resulting in a large waste of heat, and the solid plastic particles cannot be guaranteed. It is completely melted into a plastic liquid and then extruded from the side of the delivery pipe to produce unqualified plastic films with slubs or defective threads

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