Supercharge mixed flow perforated plate for wood plastic profiled bar extrusion mold

Abstract

The invention discloses a supercharge mixed flow perforated plate for a wood plastic profiled bar extrusion mold. The perforated plate is a circular plate (1) in which a plurality of circles of concentric rings are formed; the center of the circular plate (1) is fixedly connected with a spindle-shaped mixed flow hammer (2) perpendicular to the plate surface; and the two ends of the mixed flow hammer (2) are conical, wherein one end is inlayed in the through hole in the circular plate. By adopting the supercharge mixed flow perforated plate, the smoothness of the large face of the sectional bar and the simulation degree of wood grain shape are effectively enhanced, and the physical property and surface quality of the sectional bar are improved.

Description

technical field [0001] The invention relates to a transition device for connection between an extruder and a die interface of a wood-plastic profile extrusion die, specifically a mixed-flow perforated plate for pressurization. Background technique [0002] In the field of plastic extrusion molding, plastic extrusion molding machines mainly include extruders, extrusion dies, calibrating dies, water tanks and tractors. In the extrusion molding process, the main function of the die head is to further plasticize the material in the die head to make it rheological, generate the necessary pressure, and ensure the compactness of the product. For the smelt of the cross-sectional shape of the formed product, the periphery of the smelt should be uniform so that the internal stress is small. The perforated plate is a transition device between the material and the die, also known as a steady flow device. Its functions are as follows: 1. Increase the extrusion pressure to further plast...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the porous plate between the material and the die cannot improve the smoothness of the large surface of the profile due to the unsatisfactory mixing and plasticizing effect of the wood-plastic material, the poor mixing uniformity of the wood-plastic material, and the low material flow pressure. and wood grain shape simulation degree, at the same time, the physical properties and surface quality of the profile can not meet the appearance requirements, which affects the production efficiency

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