GB511008A - Improvements in and relating to the creel mechanism of warping frames - Google Patents

Abstract

511,008. Creel frame mechanisms; spools. REINERS, W. Nov. 7, 1938, No. 32250. Convention date, Jan. 14. [Classes 120 (iii), 142 (ii) and 142 (iv)] In a mechanism for changing the yarn or thread packages on the creel of a warping frame, the threads extending from the exhausted creel are mechanically severed and the loose ends of the new packages mechanically tied to the ends of the threads drawn off the previous packages. A pillar 8, Fig. 3, on a carriage 1 supports pairs of shears 11, there being one pair for each tier of creel pegs. The carriage is traversed along the creel by an electromotor 2 driving pinions 4, 5, Fig. 4, engaging racks 6, 7. As the shears reach each column of pegs a rod 12, having a roller 14 running on a rail 21, is given an upward movement by means of ramps 16. The rod 12 extends up the centre of the pillar 8 and has tappets 13' projecting through the pillar to actuate the shears. To enable the carriage to pass from one side to the other of the creel 26, Fig. 4, the racks 6, 7 and rail 21 in each passageway are joined at one end by curved portions. The creel 26 is mounted on rollers 27 so that when all the threads have been cut it can be withdrawn and a creel carrying fresh cheeses S moved into position. The carriage is again traversed along the creel, the pillar 8 having been given a quarter-turn to move the shears to an inoperative position and to bring into operation knotters 20 also mounted on the pillar and..actuated by the ramps 16 in the same manner as the shears. The ends Fa of the new cheeses-and the ends Fb hanging from the tensioners are drawn towards the knotters by arms mounted on vertical shafts 9, 10 driven by the motor 2. The spools H on which the cheeses are wound are formed at -their ends with grooves 31 from which the ends Fa of the threads hang in correct position for engagement by the arms. The carriage may travel vertically instead of horizontally and the shears and knotters may be mounted on separate carriages. A single severing device and a single knotter may be used. Electrically heated burners, or mechanical devices exerting a pull, may be used to sever the threads. The creel may be withdrawn for refilling by an endless belt having tappets into the path of which corresponding tappets on the creel can be moved by hand or by remotecontrolled mechanism. When the last threads have been cut the carriage may close an electric circuit to cause removal of the creel and the arrival of a fresh creel may start the knotters. The threads may be drawn towards the knotters by suction. Instead of being carried by a withdrawable creel, the pegs may be mounted on horizontal bars attached to vertical shafts which have gearwheels engagable by a rack on the carriage, so that the shafts are rotated as the carriage passes them. The Specification as open to inspection under Sect. 91 states that stationary severing devices, individual to each peg, may be brought into operation by the withdrawal of an exhausted creel and that, when the pegs are carried by pivoted bars, grippers may be provided to hold the yarn fast so that it is broken when the bars are turned. This subject-matter does not-appear in the Specification as accepted.