Flat filament drafting hot air chamber

Abstract

The invention provides a flat filament drafting hot air chamber which comprises a chamber body. A cover body is buckled on the top of the chamber body. A flat filament inlet and outlet are formed in the side wall of the chamber body, and the inlet and outlet are formed in the same straight line; a plurality of parallel infrared heating lamps are installed at the side, close to the inlet, of the interior of the chamber body, an electric heating panel is installed at the side, close to the outlet, inside the chamber body, and a fan is installed above the electric heating panel; the air outlet direction of an air outlet of the fan is parallel to the conveying direction of flat filaments, and the axial direction of the infrared heating lamp is perpendicular to the conveying direction of the flat filaments; the electric heating panel, the fan and the infrared heating lamp are electrically connected with a power supply through wires; a support for installing the electric heating panel, the fan and the infrared heating lamp is welded to the interior of the chamber body, the support and the inner side wall of the chamber body are fixedly welded, and the electric heating panel, the fan andthe infrared heating lamp are fixedly connected to the support through bolts. The chamber has the advantages that the heating effect is better, and the flat filaments are heated more uniformly.

Description

technical field [0001] The invention relates to the technical field of packaging woven bags, in particular to a flat yarn drafting hot air box. Background technique [0002] Flat yarn is a chemical fiber monofilament with a flat cross section, which is the abbreviation of the plastic weaving industry, and it is also called cut fiber. It is the basic material for the production of plastic braids. The flat yarn is made of specific varieties of polypropylene and polyethylene resin, which are melted and extruded into films, and then cut into strips in the longitudinal direction. Into a flat yarn spindle. Among them, the heating, drawing, orientation and setting of the flat yarn play a vital role in the quality of the finished product. [0003] Because the traditional heating and drawing equipment uses a combination of electric heating plate and fan, that is, the flat yarn is gradually heated from the edge to the center through air convection, and the heating rate is inconsiste...

AI Technical Summary

Problems solved by technology

[0003] Because the traditional heating and drawing equipment uses a combination of electric heating plate and fan, that is, the flat yarn is gradually heated from the edge to the center through air convection, and the heating rate is inconsistent, which will lead to different internal orientations of the flat yarn, resulting in localized Stress, which in turn makes the flat wire easy to break

If the packaging bag woven by this kind of flat yarn has poor stretch resistance, the quality and service life of the packaging bag will be reduced

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