Multi-bushing plate merging wiredrawing technology and multi-bushing plate wiredrawing device employing it

Abstract

The invention provides a multi-bushing plate merging wiredrawing technology. Specifically, 2 or more bushing plates are employed, and each bushing plate is provided with a plurality of leaks. Molten glass flows through each leak of each bushing plate and is cooled, and then a plurality of glass fibers can be obtained through wiredrawing molding respectively. Pulled by a wiredrawing machine driven wire cylinder, the glass fibers respectively pass through multiple upper bunchers and are neatened and gathered into glass fiber bundles, which are then neatened and gathered by a gathering buncher into a complete glass fiber bundle that is then wound on the wire cylinder into a finished glass fiber bundle. A multi-bushing plate wiredrawing device is provided with 2 or more bushing plates, each of which is equipped with a plurality of leaks. An upper buncher is installed behind each bushing plate respectively, a gathering buncher is arranged behind each upper buncher, the wiredrawing machine is disposed behind the gathering buncher, the wire cylinder is positioned on the gathering buncher, and the wire cylinder and the wiredrawing machine are in driving rotary connection. With the technology and device provided in the invention, the manufacturing cost of a bushing plate for a glass fiber bundle with a great weight of per unit length can be reduced, the band forming property of the glass fiber bundle can be improved, and the effect can be obvious.

Description

technical field [0001] The invention relates to a wire drawing process and a wire drawing device, in particular to a combined drawing process of multiple bushing boards used for glass fiber production and a wire drawing device of multiple bushing boards using the technology. Background technique [0002] At present, in the manufacturing process of glass fiber, a single bushing board is used to complete the molding process. When the number of glass fibers in the produced glass fiber tow is large, that is, the weight per unit length is heavy, the method of adding a single bushing board is used. The method of the number of leakage holes, in order to achieve the purpose of increasing the weight per unit length of glass fiber strands. When the number of leak holes of a single bushing increases, the size of the bushing will increase, resulting in an increase in the use of precious metals for manufacturing the bushing and increasing the difficulty of manufacturing the bushing, whic...

AI Technical Summary

Problems solved by technology

When the number of leak holes of a single bushing increases, the size of the bushing will increase, resulting in an increase in the use of precious metals for manufacturing the bushing and increasing the difficulty of manufacturing the bushing, which greatly increases the manufacturing cost of the bushing, and In order to ensure the stability of the glass fiber diameter, after the size of the bushing increases, the difficulty of ensuring the uniformity of the temperature control of the bushing is greatly increased. At the same time, the technical requirements for the cooling equipment used must also be significantly improved. After the glass fiber is formed, the error of the walking speed of the glass fiber at each edge of the bushing increases, resulting in an increase in the tension difference of each glass fiber in the glass fiber tow, which affects the banding of the glass fiber tow. The glass fiber tow cannot be wound into a uniform flat strip on the bobbin, which affects the manufacturing quality of various glass fiber products and reduces the use value of the glass fiber tow

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