Clothes hanger type non-woven fabric melt-blow mold

Abstract

The invention discloses a clothes hanger type non-woven fabric melt-blow mold which comprises a mold head, a spinneret plate and air knives. The mold head is transversely and horizontally arranged inthe length direction, and the spinneret plate is fixedly mounted at the bottom of the mold head. A feeding cavity of a clothes hanger type structure is formed in the mold head, and a sprue bush communicating with the middle position of the upper end of the feeding cavity is arranged at the top of the mold head. A storage trough is formed in the spinneret plate, a division filter assembly is assembled at the top of the storage trough, and the storage trough communicates with the feeding cavity through the division filter assembly. Multiple spinneret holes transversely and linearly distributed are formed in the bottom of the spinneret plate, and the storage trough communicates with the outside through the spinneret holes. The two air knives are symmetrically arranged on the front sides and the rear sides of the spinneret holes. The feeding cavity of the clothes hanger type structure is adopted in the mold head, the feeding resistance of the middle is increased, so that material flow is evenly diffused towards the two sides, the material flow can evenly distributed in a bottom groove, pressure balance is achieved, the flow speed of the spinneret holes is consistent, the thickness of formed non-woven fabric is uniform, and quality is high.

Description

technical field [0001] The invention relates to the technical field of mold manufacturing, in particular to a hanger-type non-woven melt-blown mold. Background technique [0002] Non-woven fabrics, also known as non-woven fabrics, are composed of directional or random fibers. Polypropylene pellets are mostly used as raw materials. They have the characteristics of moisture-proof, breathable, flexible, light weight, non-combustible, and recyclable. Non-woven fabric has no warp and weft, and is light and easy to shape. It is very convenient to cut and sew. It has become the material of choice for mask production. Non-woven fabrics are produced by melt-blown molds. Polypropylene pellets are made into hot fluid in the injection molding machine and injected downward through the spinneret holes of the melt-blown mold. At the same time, the silk threads are pulled out under the action of wind on both sides. With a certain width, thousands of spinneret holes are required to be arran...

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies of the above-mentioned prior art, the purpose of the present invention is to propose a hanger-type non-woven fabric melt-blown mold to solve the problem that the injection pressure of each spinneret hole of the existing melt-blown mold is inconsistent, resulting in non-woven fabrics with uneven thickness and poor quality. bad question

Images