Filament spinning component suitable for double screw extruder

Abstract

The invention relates to a filament spinning component suitable for a double screw extruder, belonging to the technical field of chemical fiber filament spinning devices. The filament spinning component comprises a positioning mechanism, a transition plate, a sand ring, a filter screen, a first distributing plate, a second distributing plate, a diffuser plate and a spinneret plate, wherein the positioning mechanism is formed by an upper outer casing and a lower outer casing which are matched with each other; a first melt introducing interface and a second melt introducing interface are arranged on the upper outer casing; the first melt introducing interface is communicated with a first melt introducing channel, and the second melt introducing interface is communicated with a second melt introducing channel and a third melt introducing channel; the transition plate, the sand ring, the filter screen, the first distributing plate, the second distributing plate, the diffuser plate and the spinneret plate are overlapped in an outer casing cavity formed by the upper outer casing and the lower outer casing which are matched with each other; the transition plate is communicated with the upper outer casing, and the sand ring is communicated with the transition plate; the filter screen is arranged on the first distributing plate in an overlapping mode and corresponds to the sand ring; the second distributing plate is communicated with the first distributing plate, and the diffuser plate is communicated with the second distributing plate; and the spinneret plate is communicated with the diffuser plate and positioned at the bottom of the outer casing cavity. The filament spinning component does not need to be additionally provided with a single screw extruder, can meet changeable market requirements, can save the equipment investment, and can reduce the investment of supporting facilities of factories.

Description

technical field [0001] The invention belongs to the technical field of spinning devices for chemical fiber filaments, and in particular relates to a spinning assembly suitable for twin-screw extruders. Background technique [0002] As is known in the industry, twin-screw extruders must be used to produce polyester-nylon composite filaments. The twin-screw extruders respectively heat-melt and extrude polyester chips and nylon chips, and then pass through corresponding filters, corresponding auxiliary boxes and equipment. The metering pump in the spinning box measures, so that the molten polyester melt and the molten nylon melt enter the spinning assembly in the spinning box for spinning. However, as manufacturers of polyester-nylon composite filaments, they often change their products according to changes in market demand. For example, when the market requires polyester filaments, they produce polyester filaments, and when the market requires nylon filaments, they process Ny...

AI Technical Summary

Problems solved by technology

However, although the above measures can meet the needs of the market, they have caused an increase in equipment investment, an increase in plant investment, and an increase in the difficulty of equipment management and maintenance for the manufacturer, so it is extremely uneconomical.

Although the industry has long been committed to the improvement of the spinning assembly matched with the twin-screw extruder, there has been no successful report in the literature so far.

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