Device for weighing a feed bobbin in a winding machine

Abstract

A device for rewinding yarns from a feed bobbin onto a bobbin tube includes a controller, a machine frame, and a bobbin mandrel held in a rotationally fixed manner in the machine frame to receive the feed bobbin. A winding device includes a thread brake to set a yarn tension in the yarn rewound from the feed bobbin onto the bobbin tube. A holder for the bobbin mandrel includes a weighing system in communication with the controller, wherein an adjustment of the thread brake is provided by the controller based on a weighing of the feed bobbin.

1 - 12 . (canceled) 
     
     
         13 . A device for rewinding yarns from a feed bobbin onto a bobbin tube to form a bobbin, comprising:
 a controller;   a machine frame;   a bobbin mandrel held in a rotationally fixed manner in the machine frame to receive the feed bobbin;   a winding device that comprises a thread brake to set a yarn tension in the yarn rewound from the feed bobbin onto the bobbin tube; and   a holder for the bobbin mandrel, the holder comprising a weighing system in communication with the controller, wherein an adjustment of the thread brake is provided by the controller based on a weighing of the feed bobbin.   
     
     
         14 . The device according to  claim 13 , wherein the weighing system comprises a force measurement device arranged between the bobbin mandrel and the machine frame. 
     
     
         15 . The device according to  claim 14 , further comprising a damping element provided between the force measurement device and the bobbin mandrel. 
     
     
         16 . The device according to claim  12 , wherein the is provided in a feed table fastened in the machine frame, wherein the feed table is height-adjustable. 
     
     
         17 . The device according to  claim 16 , wherein the height adjustment of the feed table is continuous. 
     
     
         18 . The device according to claim  12 , further comprising an input device is communication with the controller to enter specifications of the feed bobbin and winding parameters into the controller. 
     
     
         19 . The device according to claim  12 , wherein the controller initiates a visual or acoustic signal when a target weight of the feed bobbin is undershot. 
     
     
         20 . A method for rewinding a yarn from a feed bobbin ( 17 ) onto a bobbin tube using a device having:
 a controller;   a machine frame;   a bobbin mandrel held in a rotationally fixed manner in the machine frame to receive the feed bobbin;   a winding device that comprises a thread brake to set a yarn tension in the yarn rewound from the feed bobbin onto the bobbin tube;   a holder for the bobbin mandrel, the holder comprising a weighing system in communication with the controller;   the method comprising:   calculating an actual weight of the feed bobbin with the controller based on a weighing from the weighing system, and adjusting a setting of the thread brake based on the actual weight.   
     
     
         21 . The method according to  claim 20 , wherein the actual weight is calculated when the winding device is at a standstill for calibration of the method. 
     
     
         22 . The method according to  claim 21 , wherein the controller prevents the winding device from restarting when a target weight of the feed bobbin is undershot. 
     
     
         23 . The method according to  claim 20 , wherein the controller assigns a corresponding draw-off tension to a respective weight of the feed bobbin based on the specification of the feed bobbin input and winding parameters input into the controller. 
     
     
         24 . A winding machine comprising the device according to claim  12 .