Special film blowing device for multi-layer co-extrusion of environment-friendly rich mineral paper

Abstract

The invention discloses a special film blowing device for multi-layer co-extrusion of environment-friendly rich mineral paper, and belongs to the technical field of novel material equipment manufacturing. The special film blowing device is formed by connecting a main extruder, an inner-layer auxiliary extruder, an outer-layer auxiliary extruder, a rotary die head and a control system, wherein the rotary die head is formed by connecting an outer die nozzle, an inner die nozzle, an outer die body, an outer core, a middle core, an inner core, a spreader plate and a sprue spreader; the outer core, the middle core and the inner core are sequentially and rotationally connected into the outer die body from outside to inside to form an outer-layer runner, a middle-layer runner and an inner-layer runner; the discharging end of the outer die body is connected with the outer die nozzle and the inner die nozzle to form a discharging runner; and the feeding end of the outer die body is connected with the spreader plate and the sprue spreader to convey feeding materials. The device is specially used for co-extrusion film blowing production of multi-layer environment-friendly rich mineral paper; one main extruder and two auxiliary extruders are matched with the three-layer rotary die head for co-extrusion and then film blowing forming, and the rich mineral paper with different functions is compositely produced in cooperation with the design of the three layers of runners; and moreover, the production efficiency is high, and the application range is wide.

Description

technical field

[0001] The invention relates to a film blowing manufacturing process equipment for stone paper, in particular to a special film blowing device for environmental protection stone paper multi-layer co-extrusion, which belongs to the technical field of new material equipment manufacturing. Background technique

[0002] Stone paper is a new type of material between paper and plastic, which can replace some traditional functional paper, professional paper, and most of the traditional plastic packaging; it has low cost and controllable degradation The characteristics can save a lot of cost for the user, and will not produce pollution. The stone paper industry, an environmentally friendly new material, draws a wide range of materials, and there is a broad space for product upgrades, technology upgrades, and application fields.

[0003] The original stone paper is produced by 80% CaCO3 and 20% PE. The multi-layer co-extrusion technology of environmentally friendly s...

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