EP 0999298 A2 20000510 - Ring spinning machine with individual spindle drives
Title (en)
Ring spinning machine with individual spindle drives
Title (de)
Ringspinnmaschine mit Individuellen Spindelantrieben
Title (fr)
Métier à filer à anneaux avec des dispositif d'entraînement de broches individuels
Publication
Application
Priority
JP 31508898 A 19981105
Abstract (en)
In a spindle driving apparatus for a ring fine spinning machine, a plurality of spindles have dedicated synchronous motors, inverters and control circuits individually connected thereto, and the control circuits are connected to a common dc power supply. Each control circuit outputs a PWM signal to the corresponding inverter, monitors a PWM duty, detects a drastic change in the driving condition of the corresponding spindle as a result of a change in the PWM duty, and stops the corresponding synchronous motor through that inverter. <IMAGE>
IPC 1-7
IPC 8 full level
D01H 1/244 (2006.01)
CPC (source: EP)
D01H 1/244 (2013.01)
Designated contracting state (EPC)
CH DE IT LI
DOCDB simple family (publication)
EP 0999298 A2 20000510; EP 0999298 A3 20000906; EP 0999298 B1 20040121; CN 1188557 C 20050209; CN 1253187 A 20000517; DE 69914283 D1 20040226; DE 69914283 T2 20041021
DOCDB simple family (application)
EP 99117969 A 19990916; CN 99123503 A 19991105; DE 69914283 T 19990916