Self-drying system for plastic bag film blowing extruder

Abstract

The invention discloses a self-drying system for a plastic bag film blowing extruder. The self-drying system comprises a machine body, a feeding box is fixedly connected to the upper end of the machine body, an extrusion plate is rotatably connected to the inner wall of the machine body through a rotating shaft, an air suction cavity is formed in the lower end of the machine body, a sliding plug is slidably connected to the inner wall of the air suction cavity in a sealed mode, the side wall of the sliding plug is elastically connected with the inner wall of the air suction cavity through a first conductive spring, an air suction pipe is fixedly connected to the bottom in the machine body, the inner wall of the air suction cavity is connected with the inner wall of the air suction pipe through a one-way air inlet pipe, and a refrigerating cavity is formed in the upper end of the machine body. According to the self-drying system for the plastic bag film blowing extruder, when a circuit between a first current-conducting plate and a second current-conducting plate is conducted, the first current-conducting plate serves as a heat absorption end, the second current-conducting plate serves as a heat release end, then heat can be absorbed in the refrigeration cavity, the interior of the heating cavity can be heated, hot air entering the refrigeration cavity is dried, the treated air enters the heating cavity to be heated, and then the air flows into the machine body again, so that the steam in the machine body is discharged.

Description

technical field [0001] The invention relates to the technical field of plastic daily necessities, in particular to a self-drying system for a plastic bag blown film extruder. Background technique [0002] Plastic bag is a bag made of plastic as the main raw material. It is an indispensable item in people's daily life. It is often used to hold other items. The forming of plastic bags is mainly through blow molding. occupies an important part. [0003] The raw materials made of plastic bags are melted, heated and extruded in the extruder, and the moisture inside is dried while the raw materials are melted to ensure the quality of the blown film. However, in areas with heavy humidity or in weather, this When the water content in the air increases, the raw materials will be brought into the extruder when the air containing moisture enters, so that the amount of water vapor in the extruder is relatively large, and then the surface of the raw materials will be blown to form a fil...

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Problems solved by technology

[0003] The raw materials made of plastic bags are melted, heated and extruded in the extruder, and the moisture inside is dried while the raw materials are melted to ensure the quality of the blown film. However, in areas with heavy humidity or in weather, this When the water content in the air increases, the raw materials will be brought into the extruder when the air containing moisture enters, so that the amount of water vapor in the extruder is relatively large, and then the surface of the raw materials will be blown to form a film. Formation of air bubbles or water streaks, affecting the performance and appearance of the film

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