Film blowing unit for heat shrinkable film

Abstract

The invention discloses a film blowing unit for a heat shrinkable film. The film blowing unit comprises a fuse machine, a heating element, a film tube and an inverted-V-shaped plate, wherein the top of the fuse machine is welded with a hopper; the middle bolt of a first bracket is fixed with the film tube; the top of the first bracket is welded with the inverted-V-shaped plate; one end of a guidebarrel is connected with an air tube in a penetrating mode; one end of the air tube penetrates through the first bracket, and is positioned at the outer side of the first bracket; the side bolt of thefirst bracket is connected with a second bracket; the top edge of the second bracket is welded with a rolling roller assembly; the upper end of the second bracket is welded with a mounting frame; themounting frame is positioned between the rolling roller assembly and the first bracket; and the inner side shaft of the bottom of the mounting frame is connected with a guide roller. According to thefilm blowing unit for the heat shrinkage film disclosed by the invention, at a charging state, metal substances in raw materials are removed; at a forming stage, the film is guided and synchronouslycooled; and at a rolling stage, the film is flattened, so that folds are avoided.

Description

technical field [0001] The invention relates to the technical field of heat shrinkable film production, in particular to a heat shrinkable film blowing unit. Background technique [0002] Heat shrinkable film is a kind of transparent thermoplastic film. Because of its high puncture resistance, good shrinkage and certain shrinkage stress, it is mostly wound on the surface of objects to protect the goods. Heat shrinkable film is used in the production process. In the process, the granular raw materials are hot-melt extruded, then blow-molded, and then rolled, and the whole is processed by an integrated blown film unit. However, the existing blown film unit has the following problems in use: [0003] The film blowing unit involves the pouring, hot melting and extrusion of raw materials. If metal substances enter it, it will cause wear to the unit and reduce the quality of film formation. The metal substances in the raw materials need to be removed; [0004] In the film forming...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a heat-shrinkable film blowing unit to solve the above-mentioned background technology. The existing film blowing unit needs to remove the metal substance in the raw material, guide and cool the formed film, and at the same time need to The problem of film leveling

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