Special film blowing device for multi-layer co-extrusion of environment-friendly rich mineral paper
A technology of environmental protection stone paper and multi-layer co-extrusion, which is applied in the field of blown film manufacturing process equipment of stone paper and special blown film device for environmental protection stone paper multi-layer co-extrusion, which can solve the problems of narrow application range and single product
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[0032] Example: such as Figure 1-8As shown, a special film blowing device for environmental protection stone paper multi-layer co-extrusion according to the present invention is composed of a main extruder, an outer sub-extruder, an inner sub-extruder connected to a rotating die and a control system. The rotary die head is composed of an outer die mouth 1, an inner die mouth 2, an outer die body 3, an outer core 4, a middle core 5, an inner core 6, a splitter plate 7 and a splitter cone 8.
[0033] The outer core 4, the middle core 5 and the inner core 6 are sequentially connected to the inside of the outer mold body 3 from the outside to the inside, and the outer walls of the three cores are connected in the outer mold body 3 to form the outer layer flow channel 9, the middle layer flow channel 10 and the inner layer flow channel respectively. The layer flow channel 11, the outer layer flow channel 9 and the inner layer flow channel 11 are converging and communicating with t...
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