Patterning servo-mechanism for a circular warp knitting machine

Citation
Sp. Mermelstein et al., Patterning servo-mechanism for a circular warp knitting machine, MECHATRONIC, 11(6), 2001, pp. 617-630
Citations number
6
Categorie Soggetti
AI Robotics and Automatic Control
Journal title
MECHATRONICS
ISSN journal
09574158 → ACNP
Volume
11
Issue
6
Year of publication
2001
Pages
617 - 630
Database
ISI
SICI code
0957-4158(200109)11:6<617:PSFACW>2.0.ZU;2-Q
Abstract
Warp knitting is always performed on flat (linear) knitting machines. A cir cular warp-knitting machine is recently made possible by using a novel conc ept of a conical needle bed and patterning cams with enclosed cam followers to drive the patterning rings. This also requires a mechanical linkage to transmit the motion from the patterning cam to the patterning rings, which is prone to vibration at undesirable levels. A new generation design replac es the mechanical cam and linkage with high-speed AC brushless servomotors enabling limitless precision patterning possibilities. A method of selectin g servomotors based on minimising the power required to perform the fastest motion required for a given application is reported. This method ensures c ost minimising by selecting the smallest servomotor suitable for a given ap plication. A circular warp-knitting machine using servomotor to drives sele cted using the method reported is designed, built and successfully tested. (C) 2001 Elsevier Science Ltd. All rights reserved.