Spinning assembly for polyester fibers and assembling device and method thereof

Abstract

The invention relates to a spinning assembly for polyester fibers and an assembling device and method thereof. The spinning assembly comprises an assembly body, and a fastening ring, a limiting pin, an upper cover, a sand cup sleeve piece, a spot welding net, a sealing gasket, a positioning pin I and a spinneret plate are sequentially arranged in the assembly body; the sand cup sleeve piece comprises a sand cup, and a pressing block, a sealing ring, a single-layer net, filter sand, an extrusion ring, an edge covering net sheet and a single-layer coarse net sheet which are sequentially arranged in the sand cup; a spring retainer ring is arranged between the fastening ring and the upper cover, and is buckled and pressed on the upper cover by the fastening ring; the spring retainer ring is in a C shape, and holes are formed in the inner sides of C-shaped openings respectively; and two concave cavities are formed in the outer bottom of the sand cup, bosses are arranged on the peripheries of the two concave cavities, and continuous grooves are formed in the upper surfaces of the bosses. According to the spinning assembly for the polyester fibers, an automatic integrated device capable of evenly stabilizing the internal pressure of the assembly is used in the assembly process, it is guaranteed that the residence time of a melt in the assembly body is consistent, the melt fluidity is good, and the temperature difference of the surfaces of spinneret plates is small.

Description

technical field [0001] The invention belongs to the technical field of spinning components, and relates to a spinning component for polyester fibers and an assembly device and method thereof. Background technique [0002] As the core component of polyester fiber spinning, the spinning assembly is to finely filter the polymer melt metered by the metering pump to remove mechanical impurities and condensed particles, fully mix and homogenize the melt, and pass it under a certain pressure. The spinneret has micro holes and is extruded to form primary fibers. Generally, different pressures can be selected according to different specifications of polyester fibers to extrude into fibers. [0003] In recent years, with the continuous progress of the chemical fiber industry in terms of manufacturing capacity, technical equipment, variety development and product quality, "new synthetic fibers" are developing in the direction of large-capacity, ultra-fine and differentiated functional ...

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