Method and device for matching materials among adjacent blade plasticization transportation units of blade squeezer

Abstract

The invention relates to a method and a device for matching materials among adjacent blade plasticization transportation units of a blade squeezer. The blade squeezer consists of a group of blade feeding units and a plurality of blade plasticization transportation units, which are connected in series in an overlapping manner; the adjacent blade plasticization transportation units are connected through baffles having stream guidance and sealing effects; and the materials of the blade units on the upstream smoothly flow into the blade units on the downstream through material outlets in the baffles, so that the transition of the materials among the adjacent blade plasticization transportation units can be realized. With the adoption of the method provided by the invention, a plasticization transportation mechanism of entire positive displacement transportation of the blade squeezer can be realized; and meanwhile, the flow dead angle in a molding process can be avoided; the remaining time of the materials at a high temperature is reduced; the distribution of remaining time of the materials is uniform; and the thermal degradation of the materials can be reduced.

Description

technical field [0001] The invention relates to a material transition method between two sets of adjacent vane plasticizing and transporting units, in particular to a material matching method and device between adjacent vane plasticizing and transporting units of a vane extruder. Background technique [0002] The vane extruder is composed of several vane plasticizing units stacked in series. The eccentric direction between the rotor and the stator of two adjacent vane plasticizing transport units is opposite, and the adjacent vane plasticizing transport units are connected by baffles. The plasticizing and transporting principle of the vane extruder is to use a group of spaces with a certain geometric shape, and their volumes can be changed periodically from small to large and then from large to small. Solidify, plasticize and discharge materials, and realize plasticized transportation of materials in which tensile deformation plays a major role. At the same time, due to the...

AI Technical Summary

Problems solved by technology

Due to the inconsistency of the eccentric direction and the size of the eccentric distance between the tableting and plasticizing transport units, it is easy to have a dead angle

The existence of dead angle will prolong the residence time of the melt at high temperature, increase the degradation of polymer materials, and at the same time make the distribution of the residence time of the material in the molding process uneven, which will affect the surface quality and mechanical properties of the product

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