Broad-amplitude film extrusion calendaring train

Abstract

The invention discloses an extrusion and rolling machine set which can manufacture wide film and comprises a calendar and an extrusion device which supplies feed for the calendar. The machine set is characterized in that the extrusion device is an extrusion machine set which is formed by two or more than two extrusion mechanisms arranged side by side. The extrusion machine set uses a combination nose; wherein, every extrusion nose in the combination nose can be used in a combination way and also can be used in a single way. A flow passage cavity interchange between the adjacent extrusion noses is connected with a mixer or a material flow separator; when the mixer is used for connecting, a flow passage embedded block is arranged on the two outer sides of the flow passage cavity of the combination nose, while the material flow separator is used for connecting, the flow embedded block is arranged on the two sides of the flow passage cavity of a single extrusion nose, meanwhile, the inlet of the flow passage of every extrusion nose is evenly provided with a material flow balancing device. The machine set can greatly improve the output, can increase the width of the produced films by times, and has the advantages of simplified manufacture, convenient operation and increasing the production efficiency.

Description

(1) Technical field: [0001] The invention relates to film production equipment, in particular to a wide-width film extrusion and calendering unit. (two) background technology: [0002] The production equipment for wide-width film (especially for the conveyor belt manufacturing industry) includes a calender and extrusion equipment that feeds the calender. At present, the largest extrusion equipment in use in the world is a ￠250 extruder, and it is equipped with an extruder. Since some films have a width as high as 2500mm, the extruder head must be at least 3000mm wide. [0003] The main problems that inevitably arise from extrusion equipment are: [0004] 1. The size of the extruder head is huge, the structure is complex, and the design, manufacture and processing are difficult. The maximum width of the film produced is limited. [0005] 2. The size of the runner plate is huge, which leads to long auxiliary time and high labor intensity for installation and replacement. ...

AI Technical Summary

Problems solved by technology

[0009] The wide-width film extrusion and calendering unit capable of achieving the above purpose includes a calender and extrusion equipment feeding the calender, the difference is that the extrusion equipment is composed of two or more parallel extruders The extrusion unit composed of the extruder extrudes the rubber through a combined head to solve the problem of large size, complex structure, difficult processing and production of a single extruder head, inconvenient use in production, low work efficiency, etc. problems, and greatly increased its production capacity compared to the original

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