Parallel tensioning device of glass fiber protofilament cylinder

Abstract

A parallel tensioning device of a glass fiber protofilament comprises a plurality of blades. The blades distributed on the circumference are hinged to a connecting rod support through a double-row connecting rod mechanism, the connecting rod support is connected with a central shaft, a connecting rod sliding sleeve can be installed on the central shaft along the central shaft in a sliding mode, and the connecting rod sliding sleeve is connected with the double-row connecting rod mechanism; a compression spring is arranged between the connecting rod support and the connecting rod sliding sleeve; one side, far away from the connecting rod sliding sleeve, of the connecting rod sliding sleeve is provided with a plurality of air cylinders driving the connecting rod sliding sleeve to slide along the central shaft; the other end of each air cylinder is connected with an air cylinder base. According to the parallel tensioning device of the glass fiber protofilament, an adopted quadrilateral mechanism is flexible in rotation, so that generated tension is even and the tensioning force is large. The torque of transmission of the double-row connecting rod mechanism is large, the driving blades are driven to enable the range of the tensioning diameter to be wide, and the parallel tensioning device is suitable for glass fiber protofilaments with different diameters. Due to the fact that the blades are supported by two connecting rods, the binding face is large, roundness is good, tensioning of the protofilament is even, and when the parallel tensioning device rotates, the phenomenon of looseness is avoided. The parallel tensioning device of the glass fiber protofilament is extremely suitable for active unwinding in the process of ultra-fine monofilament glass fibers.

Description

Technical field [0001] The invention relates to the field of textile machinery, in particular to a parallel tensioning device for glass fiber precursor cylinders. Background technique [0002] Electronic-grade glass fiber twisted yarns have high requirements for hairiness and strength loss. This requires that the original yarn can ensure small tension fluctuations and produce less hairiness when unwinding. Existing tensioning devices such as elastic six-jaw cartridges are difficult to ensure the small circular runout of the original yarn cylinder during the rotation process after tensioning. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a parallel tensioning device for the glass fiber precursor tube, which can effectively reduce the tension fluctuation of the yarn withdrawal. [0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a parallel tensioning device f...

AI Technical Summary

Problems solved by technology

Existing tensioning devices such as elastic six-jaw card cylinders are difficult to ensure a small circular runout of the raw yarn cylinder during the rotation process after tensioning in terms of manufacturing accuracy.

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