Patent GB-1018827-A (GB)
Title: Automatic winding machine
IPC: B65H67/02
Filed: 1962-09-26
Abstract: 1,018,827. Stop motions; winding bobbins. W. REINERS. Sept. 26, 1962 [Sept. 30,1961], No. 36561/62. Headings DID and D1J. An automatic winding machine having an automatic feed of supply packages to the individual winding positions, is provided with means to interrupt the drive at the winding station in the event of a new supply cop not being present at a reserve supply position.  In Fig. 1 the take-up spool 21 is driven by a thread-guide drum .22 when an intermediate roller 25 bridges a gap between the thread-guide drum 22 and a driving roller 16. The intermediate roller 25 is held in its operative position by a system of levers so long as; (a) a yarn supply F exists between a tensioning device T and the takeup spool 21 or (b) the diameter of the take-up  spool 21 does not exceed a predetermined size. According to the invention a further control device is included which stops the winding operation if a reserve yarn supply package is not present at a feed station 201. As shown in Fig. 1 the further control device includes a feeler lever 214 which, in the absence of a reserve supply package, closes an electrical pair of contacts 215 to energize a solenoid 212 coupled to a lever 210. The resulting movement of the lever 210 is designed to move the intermediate roller 25 away from the driving roller 16 and so stop the winding operation. To prevent the solenoid 212 from responding at each change of the supply package, a time-delay member 217 is included in the circuit to the solenoid. If the minimum running-off time of a supply package in 4 minutes, the time-delay member 217 is set, for example, to 3<SP>1</SP>/ 2  minutes. In a modified construction, Fig. 2 (not shown), the time-delay member 217 is omitted and, instead, the circuit through the pair of contacts 215 is in series with a further pair of contacts that are held open by a feeler engaging the supply package from which the yarn is being unwound. The feeler associated with the supply package being unwound is adapted to close its associated contacts when the package being unwound has reached a predetermined minimum diameter and if at this stage a reserve supply package is not present at the feed station 201 then the contacts 215 will also be closed and the solenoid 212 will then be energized to stop the winding operation. In the constructions described with reference to Figs. 1 and 2 the winding operation is stopped, in the absence of a reserve package, before the supply package situated on the peg 67 is completely exhausted. If it is desired that said stopping of the winding operation shall only be allowed to take place when the supply package being unwound is completely exhausted the construction described with reference to Fig. 2 may be modified, Fig. 3 (not shown) by causing said further pair of contacts to be responsive to the absence of yarn between the supply package and the tensioning device T. To prevent a thread knock-off arrangement 37 from pivoting out before a double lever 45 is blocked by a nose 210b of the lever 210 actuable by the solenoid 212, the solenoid circuit may include are electro-magnet which, when energized simultaneously with the magnet 212, holds the knock-off arrangement 37 fast in the illustrated position. Doffing. By moving cable 65 to the left, lever 63 lifts empty bobbin off peg 67. By moving lever 66 to the right peg 67 in lowered and lever 203 is retracted to allow new bobbin to slide down on to peg 67.