Fine-denier polyamide fiber 6 filament production line and production method thereof

Abstract

The invention discloses a fine denier nylon 6 filament production line and a production method thereof, belonging to the field of machinery, comprising a melt polymerization device, a slice manufacturing device, a spinning device, a drafting device and a post-processing device in sequence from front to back. The preparation device includes a belt injection cooling device, a slicer, an extraction device and a drying device in sequence from front to back, and the slicer includes a guide plate, an upper pressing roller, a lower pressing roller and a cutter head. The pressing roller is located in the middle of the guide bar and the cutter head. A guide vane connecting device is arranged between the cutter head and the upper and lower pressing rollers. There are rotating cutter heads evenly distributed on the circumference of the cutter head. . The beneficial effects of the invention are that: the slicing machine adopts the cutter head to cooperate with the guide piece connecting device, and the 6 strips of nylon coming out of the guide piece connecting device can be sliced ​​through the rotation of the cutter head, the structure is simple, the operation is convenient, and the uniformity of the slice size is good. .

Description

technical field [0001] The invention relates to the field of machinery, in particular to a fine-denier nylon 6 filament production line and a production method thereof. Background technique [0002] Nylon 6 filament is a commonly used synthetic fiber, which is widely used in the clothing market. It has the characteristics of good hand feeling, wear resistance and high color fastness, while the fine denier full-drawn yarn has the characteristics of soft hand feeling and comfortable wearing. Generally, fine denier filaments are produced by two-step method, that is, the first step is to produce UDY filaments, and the second step is to produce UDY filaments through cooling and stretching to produce fully drawn filaments, namely DT filaments. This method has low efficiency, high cost and unstable product quality. [0003] In recent years, some enterprises adopt a one-step method to produce nylon 6 fine denier filaments. The production process is: slice melting-extrusion machine-...

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Problems solved by technology

[0006] In order to overcome the problems of high impurity content, poor quality, high reject rate and poor slice size uniformity in the production of nylon 6 existing in the prior art, the present invention provides a fine-denier nylon 6 filament production line, which includes sequentially from front to back Melting polymerization device, chip manufacturing device, spinning device, drafting device and post-processing device, the chip preparation device includes a belt cooling device, a slicer, an extraction device and a drying device in sequence from front to back, and the slicer includes a guide Lath, upper pressing roller, lower pressing roller and cutterhead, described upper pressing roller, described lower pressing roller are positioned at the middle of described guide bar and described cutterhead, described cutterhead and described upper pressing roller, lower There is a guide piece connection device in the middle of the pressure roller, and the rotating cutter heads are evenly distributed on the circumference of the cutter head

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