US 2004/0031533 A1Published application

Method for operating a weaving and shedding machine

AssigneeLindauer Dornier Gesellschaft mbH

InventorsValentin Krumm, Dietmar Von Zwehl, Michael Lehmann, Dieter Mayer

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Abstract

The object of the invention is to optimize the electromotive driving and braking moments or torques required in the starting and braking phase of the weaving and shedding machine while reducing the mechanical loading or stressing of machine elements of the shedding and weaving machine and while preventing starting marks in the woven fabric, and on the basis thereof, to achieve so-called soft starts and soft stops, in particular, of the shedding machine. The object is achieved according to the invention in that, in a weaving machine equipped with an electromotive main drive and in a shedding machine equipped with an electromotive auxiliary drive, the shedding machine is started at a time point (t1) that lies before the starting time point of the weaving machine, and in that, upon a triggered interruption of the weaving process, the shedding machine comes to the standstill at a time point (t5) that lies after the standstill time point (t4) of the weaving machine.

Claims8

Dependent claims

Method for operating a weaving and shedding machine, whereby the weaving machine is equipped with an electromotive main drive and the shedding machine is equipped with an electromotive auxiliary drive, wherein the electromotive main drive and the electromotive auxiliary drive is actuated in a signal transmitting manner with a control device, wherein the weaving machine and the shedding machine is brought from the standstill to a prescribed rotational speed, and wherein, upon an occurring interference, the weaving machine and the shedding machine are shifted into the standstill by braking means, characterized in:

that the shedding machine is started within a time window Δt1 before the weaving machine,
that the weaving machine is started after expiration of the time window Δt1 at a time point t2 lying outside of the time window Δt1,
that the shedding machine and the weaving machine, after their starting process, are operated approximately synchronously as of a fixable time point t3,
that the synchronous operating manner of the weaving and shedding machine is terminated upon an electrical signal detecting an operating interference, and
that thereupon the braking process for the weaving and shedding machine is initiated in such a manner, that both machines come to the standstill at different time points.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/415,385Filed 25 Apr 2003
Priority: DE 10053079.626 Oct 2000
Published: 19 Feb 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

D03C 1/146
Features common to dobbies of different types: independent drive motor
D03D 51/002
Driving, starting, or stopping arrangements; Automatic stop motions: avoiding starting marks
D03D 51/06
Driving, starting, or stopping arrangements; Automatic stop motions: using particular methods of stopping
D03C
Shedding mechanisms

Family

US 6,953,063 B2Related patent
US 2004/0031533 A1This patent

From the US filing history. Foreign family members aren’t listed.

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