Weft insertion transmission mechanism for carbon fiber three-dimensional loom

Abstract

The invention discloses a weft insertion transmission mechanism for a carbon fiber stereoscopic loom, which comprises a bracket. Two rotating shafts are arranged on the bracket; transmission gears and weft insertion gears are fixedly arranged on the rotating shafts; the tooth number of each transmission gear is twice of that of each weft insertion gear; two transmission gears are meshed with a driving gear; the driving gear is driven by a motor; both the two weft insertion gears are arranged above a rapier; a rack meshed with two weft insertion gears is embedded on the rapier; a supporting guide wheel is arranged below the rapier; the tail part of the rapier is fixedly connected with a sliding block; the sliding block is mounted on a guide rail; a bracing piece is arranged below the guide rail; and when two weft insertion gears and the rack are kept in homodromous meshed contact, phase difference of two weft insertion gears is one second of an included angle between each two adjacent teeth on either of the weft insertion gears, and phase difference of two transmission gears is an included angle of each two adjacent teeth on either of the transmission gears. According to the weft insertion transmission mechanism disclosed by the invention, weft insertion motion stability can be effectively improved, the vibration amplitude of the rapier can be reduced, and weft insertion quality can be improved.

Description

technical field [0001] The invention relates to a carbon fiber three-dimensional loom, in particular to a weft insertion transmission mechanism for the carbon fiber three-dimensional loom. Background technique [0002] Weft insertion is a key link in the weaving process, and the weft insertion action of the weft insertion mechanism of the three-dimensional loom is completed by the rack and pinion transmission. Because the comprehensive meshing stiffness of the gear teeth not only has time-varying, but also has a great abrupt change, and the meshing of the gear teeth is a dynamic collision process, resulting in vibration of the gear transmission, which has a great impact on the dynamic performance and stability of the high-speed motion mechanism. There are adverse effects. Therefore, the motion acceleration of the rapier of the existing carbon fiber three-dimensional loom weft insertion mechanism fluctuates violently, and the rapier vibrates up and down, and the motion stabi...

AI Technical Summary

Problems solved by technology

Because the comprehensive meshing stiffness of the gear teeth not only has time-varying, but also has a great abrupt change, and the meshing of the gear teeth is a dynamic collision process, resulting in vibration of the gear transmission, which has a great impact on the dynamic performance and stability of the high-speed motion mechanism. adverse effects

Therefore, the motion acceleration of the rapier of the existing carbon fiber three-dimensional loom weft insertion mechanism fluctuates violently, and the appearance is that the rapier vibrates up and down, and the motion stability is poor.

And the up and down vibration of the rapier directly causes the vertical displacement of the rapier head, which is easy to stab or pass through the weaving warp, damage the fabric, reduce the quality of the fabric, and eventually cause economic losses to the user

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