Warp repair assisting apparatus for warper

A warp repair assisting apparatus for use in a warper having a detector which detects an abnormal portion of warps and sends an abnormal portion detection signal;

• a take-up beam which takes up warps around the beam in a forward direction;
• a drive unit which rotates the take-up beam in the forward direction and stops the take-up beam respectively;
• the warp repair assisting apparatus comprising:
• an outer diameter calculation unit for calculating an outermost diameter of the take-up beam;
• and
• a correction amount calculation means for calculating a corrected rotation amount of the take-up beam;
• the correction amount calculation means including:
• a length calculator means for calculating, in accordance with the outermost diameter of the take-up beam, a running distance between the abnormal detection position detected by the detector, an operation position on the take-up beam and an inertia driven running distance of the warps upon receipt of the abnormal portion detection signal from the detector;
• an operation unit including means for calculating the corrected rotation amount of the take-up beam based on the running distance and the inertia driven running distance;
• and
• a monitor unit including means for monitoring an operation of the drive unit so that the abnormal portion of the warps stops substantially at the operation position on the take-up beam.

A method of operating a warp repair assisting apparatus in a warper, said method comprising the steps of:

• providing a correction amount calculation unit coupled with an outermost diameter calculation unit;
• calculating an outermost diameter of a take-up beam using the outermost diameter calculation unit;
• and
• calculating a corrected amount for moving the take-up beam in a forward direction to position an abnormal portion of warps in an operation position on the take-up beam using the outermost diameter obtained in said step of calculating an outermost diameter.

A method of operating a warp repair assisting apparatus for use in a warper, said method comprising the steps of:

• providing a take-up beam for taking up warps around the take-up beam in a forward direction;
• providing a driving unit for rotating the take-up beam in the forward direction and for stopping the take-up beam;
• detecting an abnormal portion of warps on the take-up beam by a detector;
• sending an abnormal portion detection signal from the detector to a correction amount calculation unit;
• calculating an outermost diameter of the take-up beam using an outer diameter calculation unit;
• and
• calculating a corrected rotation amount of the take-up beam using the correction amount calculation unit;
• said step of calculating a corrected rotation amount including:
• calculating a running distance between the abnormal detection position detected by the detector, an operation position on the take-up beam and an inertia driven running distance of the warps, upon receipt of the abnormal portion detection signal from the detector;
• calculating the corrected rotation amount of the take-up beam based on the running distance and the inertia driven running distance;
• and
• monitoring an operation of the drive unit so that the abnormal portion of the warps stops substantially at the operation position on the take-up beam.