Monitoring of thread transport
AssigneeSultex AG
InventorWalter Siegl
Life of this patent
Estimating the term…
Abstract
A method for monitoring the transport of a thread in a weaving machine is presented in which the thread includes thread sections (21, 21.i) which are transported with an associated speed (vi). In this method, values (24) of at least one kinematic measurement parameter of at least one thread section (21, 21.i) are measured and, based on the measured values (24), approximation values (25) of the tensile force which acts on at least one thread section (21, 21.i) are calculated by means of a computation model (2). The computed approximation values (25) are displayed for monitoring purposes.
Claims17
Method for monitoring the transport of a thread in a weaving machine comprising transporting thread points or thread sections with an associated speed;
- measuring values of at least one measurement parameter which is dependent on the thread transport of at least one thread point or thread section;
- calculating, based on the measured values, approximation values of at least one dynamic process parameter which is characteristic of the thread transport for at least one thread point or thread section by means of a computation model, the computation model being designed as a simulation model for the thread transport in accordance with the method of finite elements;
- and evaluating the computed approximation values for monitoring the thread transport.
Method for monitoring the transport of a thread in a weaving machine comprising transporting thread points or thread sections with an associated speed;
- measuring values of at least one measurement parameter which is dependent on the thread transport of at least one thread point or thread section;
- calculating, based on the measured values, approximation values of at least one dynamic process parameter which is characteristic of the thread transport for at least one thread point or thread section by means of a computation model;
- and evaluating the computed approximation values for monitoring the thread transport, the computation model containing model parameters, and at least some of the measured values being used as control parameters for the iterative adaptation of the model parameters.
Method for monitoring the transport of a thread in a weaving machine comprising transporting thread points or thread sections with an associated speed;
- measuring values of at least one measurement parameter which is dependent on the thread transport of at least one thread point or thread section;
- calculating, based on the measured values, approximation values of at least one dynamic process parameter which is characteristic of the thread transport for at least one thread point or thread section by means of a computation model;
- and evaluating the computed approximation values for monitoring the thread transport, wherein the computation model comprises a simulation model for the thread transport, and wherein the temporal variation of the approximation values of at least one dynamic process parameter which is characteristic for the thread transport is calculated for at least one thread point or thread section by means of the simulation model over a transport period.
Method for monitoring the transport of a thread in a weaving machine comprising transporting thread points or thread sections with an associated speed;
- measuring values of at least one measurement parameter which is dependent on the thread transport of at least one thread point or thread section;
- calculating, based on the measured values, approximation values of at least one dynamic process parameter which is characteristic of the thread transport for at least one thread point or thread section by means of a computation model;
- evaluating the computed approximation values for monitoring the thread transport;
- and calculating or evaluating the approximation values of a parameter which is dependent on the thread tensile force.
Method for monitoring the transport of a thread in a weaving machine comprising transporting thread points or thread sections with an associated speed;
- measuring values of at least one measurement parameter which is dependent on the thread transport of at least one thread point or thread section;
- calculating, based on the measured values, approximation values of at least one dynamic process parameter which is characteristic of the thread transport for at least one thread point or thread section by means of a computation model;
- and evaluating the computed approximation values for monitoring the thread transport, the values of at least one measurement parameter which is dependent on the thread transport being measured contactlessly, and/or with values of at least one of the following measurement parameters being measured:
- starting time in a predetermined position, arrival time at a predetermined position and displacement after a specific period of time or speed.
Dependencies are inferred from the claim text.