Production line and preparation method of bristles for brushes

Abstract

The invention discloses a production line and a preparation method of bristles for brushes. The production line of bristles for brushes comprises an upper screw extruder, a lower screw extruder, a metering pump, die heads of the metering pump, drafting devices, a hot-forming box and a winding device, a discharge outlet of the upper screw extruder is arranged above a feed inlet of the lower screw extruder, a discharge outlet of the lower screw extruder is communicated with a filter device, a discharge outlet of the filter device is communicated with a feed inlet of the metering pump, a cold water trough is arranged blow the die heads of the metering pump, the first drafting device, a hot water trough, the second drafting device, an oil wheel, the third drafting device, the hot-forming box and the winding device are sequentially arranged behind the cold water trough. The production line of the bristles for brushes has the advantages of energy saving and low production cost.

Description

technical field [0001] The invention relates to the technical field of chemical machinery, in particular to a production line of various brush filaments produced from nylon and a preparation method thereof. Background technique [0002] Nylon, also known as polyamide, is the most widely used thermoplastic engineering plastic at home and abroad. It has excellent properties such as toughness, wear resistance, impact resistance, fatigue resistance, corrosion resistance, and oil resistance. For decades, its usage has been increasing and its application range has become wider and wider. The total demand has always ranked first among the five engineering plastics. . Nylon is used as raw material to produce various brush filaments, and its demand is also relatively large. The production of brush filament in the prior art has the following defects: [0003] 1. In the process of wire brush production, since the raw materials contain water, generally the raw materials (nylon materi...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a wire brush production line and its preparation method, which overcomes the defects in the prior art: 1. Before the raw materials enter the screw extruder, there is no need for drying treatment; The silk does not need to enter the oven for heating, and can directly enter the next stretch; 3. The waste silk in production can be reused, and there is no need to replace the filter frequently, and the filter device will not be blocked.

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