Jacquard device of warp knitting machine

Abstract

A jacquard device capable of facilitating the manufacture and knitting operation of a jacquard guide bar, simplifying the structure of the jacquard guide bar, and allowing the jacquard guide bar having a large number of reads to be installed in a warp knitting machine having, on the jacquard guide bar, jacquard segments formed of a plurality of piezoelectric device elements including a jacquard guide disposed parallel with each other, wherein control substrates (12) are formed integrally with a part of the plurality of jacquard segments (2) to connect in series to each other and to connect individually to the electrode terminals (9) and (10) of the piezoelectric device elements (5) including the piezoelectric device ceramics, and a displacement part (7) is distorted by the control and drive signals transferred to the control substrates (12) to displace the jacquard guide (8b) by a dimensional amount commensurate with a knitting machine gauge.

Description

technical field [0001] The invention relates to a piezoelectric displacement type jacquard device for separately controlling the jacquard yarn guides of a warp knitting machine. Background technique [0002] The applicant has previously proposed the structure of the jacquard guide bar using piezoelectric displacement in the jacquard device of the warp knitting machine, eliminating the need for electric wires, and has been recognized as Japanese Patent No. 1770365 . Thereafter, a jacquard device using this basic patent has been proposed, for example, disclosed in Japanese Patent No. 2919773 and Japanese Patent Application Laid-Open No. 8-209510. [0003] These jacquard devices are provided with a piezoelectric element, and the piezoelectric element is equipped with a jacquard yarn guide with a yarn supply hole (yarn guide hole) at the front end. on the holding part of the jacquard yarn guide. [0004] Usually, the above-mentioned piezoelectric elements attached to the jacq...

AI Technical Summary

Problems solved by technology

[0009] However, in the above-mentioned piezoelectric displacement type jacquard device, the energization voltage of ceramics usually needs to be a high voltage of 200V according to the energization control method, so there is always the possibility of malfunction due to leakage

In addition, since a plurality of piezoelectric elements are assembled as a group to form one sheet, when one piezoelectric element fails and has to be replaced, it is necessary to replace each sheet, which is troublesome.

Images