Film production system and method for PE packaging bag

Abstract

The invention discloses a film production system for PE packaging bags, and relates to the technical field of packaging bag production. The device specifically comprises a primary mixing mechanism, a material conveying mechanism, a secondary mixing mechanism, an extrusion mechanism, a blow molding mechanism, an exhaust mechanism and a material recycling mechanism, the production method of the film for the PE packaging bag specifically comprises the steps that the bottom end of a material mixing machine in the primary material mixing mechanism is installed below the ground, the top of the material mixing machine is 10-20 cm higher than the ground, and the multiple secondary material mixing mechanisms, the multiple extrusion mechanisms and the multiple blow molding mechanisms are sequentially installed at the lower end of a material distribution pipe. The blockage phenomenon caused by bottom deposition of raw materials is effectively avoided, the raw materials are guided into the spiral mixers through the material supplementing pipe to be subjected to secondary mixing, the raw materials are sequentially distributed into the multiple spiral mixers by continuously changing the opening and closing state of the material distribution assembly, and the raw materials are uniformly mixed. Continuous and uninterrupted raw material mixing and adding operation of multiple blow molding machines is achieved, and the film blow molding processing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of packaging bag production, in particular to a film production system and method for PE packaging bags. Background technique [0002] PE packaging bag is a kind of transparent plastic bag, which is used for packaging of clothing, bags, electronic products, etc. It is a kind of thermoplastic resin film bag made by polymerization of ethylene. PE packaging bag has excellent low temperature resistance and good chemical stability. It is resistant to most acids and alkalis (not resistant to oxidizing acids), insoluble in common solvents at room temperature, has low water absorption, and excellent electrical insulation properties; the properties of polyethylene vary with varieties, mainly depending on molecular structure and density. Products with different densities can be obtained by using different production methods. [0003] Polyethylene can be formed by the general thermoplastic molding method, and the prod...

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Problems solved by technology

[0003] Polyethylene can be formed by the general thermoplastic molding method, and the production of PE packaging bags is mainly through the mixing of resin particles and additives such as modified materials, and the pressure and shear force generated by the rotation of the screw in the screw extruder can make the melting The raw materials can be fully plasticized and mixed evenly, and PE packaging bags are formed by blow molding. In the feeding stage, the raw materials are mainly packed in bags, and the staff need to transport the raw materials to the screw mixer for mixing. However, Due to the height of the equipment, the staff needs to carry it frequently, resulting in a large amount of labor and low efficiency

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