Combined-type spinneret plate structure

Abstract

The invention discloses a combined-type spinneret plate structure. The combined-type spinneret plate structure comprises a spinneret plate. The spinneret plate comprises a feeding surface and a discharge surface. The feeding surface is equipped with multiple feeding holes, sections of which are circular. Multiple discharge units are arranged on the discharge surface. The feeding holes and the discharge units are arranged in an array of a concentric circle structure from inside to outside. Each discharge unit is formed in such a manner that two discharge holes with C-shaped sections are oppositely symmetrical to each other. A first sleeve pipe is arranged outside the spinneret plate in a sleeved manner. A second sleeve pipe, a third sleeve pipe and a fourth sleeve pipe are orderly arrangedin the first sleeve pipe. A first cavity is formed between the first sleeve pipe and the second sleeve pipe. A second cavity is formed between the third sleeve pipe and the fourth sleeve pipe. One ends of the first sleeve pipe, the second sleeve pipe, the third sleeve pipe and the fourth sleeve pipe are connected with the filament discharge side surface of the spinneret plate. The other end of thefirst sleeve pipe is connected with the other end of the second sleeve pipe in a sealing manner. The other end of the third sleeve pipe is connected with the other end of the fourth sleeve pipe in asealing manner. The spinneret plate is also equipped with a first air inlet communicating with the first cavity and a second air inlet communicating with a second cavity.

Description

technical field [0001] The invention relates to the technical field of spinnerets, in particular to a combined spinneret structure. Background technique [0002] The spinneret is a commonly used product in the textile and chemical fiber industry. The spinneret includes a feed surface and a discharge surface. There are feed holes on the feed surface and discharge holes on the discharge surface. The function of the spinneret is The viscous polymer melt or solution is transformed into a fine flow with a specific cross-section through micropores, and solidified by a solidification medium such as air or a coagulation bath to form filaments, that is, entering from the feed hole and passing through the discharge The spinneret comes out of the hole, and the discharge hole is C-shaped. The fiber spun out of the spinneret is light in weight, matte, soft, super heat-retaining and good in elasticity. It is a commonly used spray in the field of textile and chemical fibers. The disadvant...

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Problems solved by technology

[0002] The spinneret is a commonly used product in the textile and chemical fiber industry. The spinneret includes a feed surface and a discharge surface. There are feed holes on the feed surface and discharge holes on the discharge surface. The function of the spinneret is The viscous polymer melt or solution is transformed into a fine flow with a specific cross-section through micropores, and solidified by a solidification medium such as air or a coagulation bath to form filaments, that is, entering from the feed hole and passing through the discharge The spinneret comes out of the hole, and the discharge hole is C-shaped. The fiber spun out of the spinneret is light in weight, matte, soft, super heat-retaining and good in elasticity. It is a commonly used spray in the field of textile and chemical fibers. Spinneret, the current spinneret with a C-shaped discharge hole has the disadvantages that the arrangement of the feed hole and the discharge hole is unreasonable, and the spinning efficiency is low

[0003] At the same time, the polyester staple fiber extruded by the spinneret will shrink due to the sudden cooling after extrusion molding, which will cause the internal hollow structure to shrink and affect the use effect of the fiber.

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