Device for control of a flat-bed knitting machine

US4773236A · kind A · utility

Assignee

• H&S Toll, Inc. · DE

Inventors

• Jurgen Ploppa · Pfullingen, DE
• Franz Schmid · Bodelshausen, DE
• Gerd Mak · Reutlingen, DE
• Horst Fries · Reutlingen, DE

Key dates

• Filing date: Sep 9, 1987
• Grant date: Sep 27, 1988
• Expiry date: Sep 9, 2007

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D04B15/70
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A device for the control of a flat-bed knitting machine for needle selection and/or the determination of the position of the carriages on the needle beds is provided with a pulse generator device having magnetically controllable resistors in the form of double differential magnetoresistors and being fixed on a first machine element, and with a magnetically conductive pulse generator board device being fixed on a second machine element. The two machine elements are movable in relation to each other and the magnetoresistors generate separate and phase-shifted in respect to each other pulse sequences during the relative movement to the pulse generator board device. So that in a device a control, especially of the needle selection, can take place at considerably higher speed a determination of direction, and if needed, an adjustment to the speed of the carriage being possible at the same time, it has been provided that the pulse generator board device has a first pulse generator board arranged along a needle bed, the tooth/grove gauge of which is finer that the finest needle gauge in the needle bed, that a pulse generator, fixed on the carriage, is associated with the first pulse gener…