Patent GB-156605-A (GB)
Title: Improvements in and relating to winding machines for yarn and the like
IPC: B65H63/036
Filed: 1921-01-06
Abstract: 156,605. Barber-Colmam Co., (Assignees of Colman, H. D.). Feb. 1, 1915, [Convention date]. Winding - machines; clearing - apparatus; stop-motions; threadguides; creel arrangements.-Relates to a machine for winding yarn, for example for winding yarns from bobbins on to spools or tubes, and consists in means for throwing the receiving-mass out of action upon exhaustion of the yarn. The Specification also describes means for pressing the receiving mass against the driving-drum and for preventing it from becoming eccentric; a construction and arrangement of cam drums for rotating the receiving- mass and guiding the yarn thereon; means for guiding the yarn and delaying its engagement with the camgroove until the receiving mass is accelerated ; and means for clearing the yarn. The invention is described as applied to a machine for winding yarn from bobbins a, Fig. 1, on to tubes b comprising a framework A provided on each side with winding-mechanism and a "windertending mechanism " arranged to travel around the machine and tie the ends of yarn on reserve bobbins d to the ends on the cheeses, as described in Specification 7176/15. A looped link 33 depends from an arm 30, which carries the tube, and, upon exhaustion of thread by breakage or emptying of the supply bobbin, is moved into the path of an oscillating hook 34 by an arm 84 on a spring-controlled spindle 80, whereupon the arm 30 is operated to remove the cheese from the drum, the movement of the arm being arrested by the engagement of a lug 45 with the arm 38<a>. The arm 84 is normally withheld from the link 33 by the engagement of the yarn with a feeler device 77 on the spindle 80, which is provided with another arm which limits the movement of the link 33. The feeler device is operated to allow the insertion of the yarn. and is re-set by projections and cam-surfaces on the " winder-tending mechanism." The arm 30 is provided with a lug 40, Fig. 14, against which one arm 38<a> of a, pressure lever 38 bears. The other arm 38<b> of the lever 38 carries a hanger 41 connected by a spring 42 with one arm 43<a> of a lever, the other arm 43b bearing against the underside of the arm 38<b>. As the cheese grows the lug 40 moves upwards with the arm 30 and the pressure of the cheese on the drum diminishes, and the arm 43<b> prevents downward movement of the arm 38<b> so that, should the cheese have any tendency to become eccentric, the high part thereof will be under greater pressure than the low part. A guide 57, Figs. 1 and 8, the interior width of which is approximately the width of the cheese, is provided with a zig-zag entrance guideway 61; when the yarn is exhausted the guide exercises sufficient resistance to prevent the yarn being thrown by the cam laterally off the periphery of the cheese, and, when the cheese is replaced on the drum, the full engagement of the yarn with the cam-groove is delayed by the guideway 61 until the cheese has been accelerated. The clearer 62 comprises a fixed plate 63, Fig. 11, a plate 64 adjustable along an arm 66 and a pivoted notched arm 69 co-operating therewith and held in operative or inoperative position by the engagement of a projection with depressions 72 in the lower side of the plate 64. The yarn from the reserve bobbin is held in a clamp 49, Fig. 1, and is attached to the yarn on the cheese, when required, by mechanism (not described in the Specification) which serves to restore the parts to operative position to re-commence winding when the ends are tied. The drums comprise end-members 14, 15, Fig. 5, clamped between the flanges of sleeves 20, 21 on the drum-shaft, and cylinders 16, the abutting edges of which are supported on webs 19. The drum-shafts are made in sections connected by flexible couplings comprising flanges 10, 13, provided with corresponding pins and holes and are mounted in hemispherical bearing-blocks 5 lubricated by wicks 9. Conveyers 95, 96, Fig. 1, serve to carry full bobbins to, and empty bobbins from, the machine.