Patent GB-558090-A (GB)
Title: Improvements in or relating to yarn and like winding machines
IPC: B65H54/28
Filed: 1942-06-12
Abstract: 558,090. Winding bobbins. UNIVERSAL WINDING CO. June 12, 1942, No. 12544/43. Convention date, June 16, 1941. Divided out of 558,082. [Class 120 (ii)) In a winding machine in which the yarn or thread is traversed longitudinally of a rotatable winding spindle by traverse means comprising a traverse frame and a yarn or thread guide which bears against the periphery of the package being wound and moves outwardly driving from the winding spindle during the growth of the package, the traverse means is mounted to rock about the longitudinal axes of a pivotal support arranged in spaced relation to the winding spindle and the pivotal support may be angularly adjusted in relation to the axis of rotation of the winding spindle so that the machine may wind cylindrical packages, conical packages with planar ends or conical packages with concavo-convex ends the yarn is caused to feed through the thread guide to the spindle or package thereon in a substantially straight line without being substantially bent or diverted at the thread guide to alter its straight course on its way to the spindle or package ; the two adjacent parts of the yarn situated at opposite sides of the thread guide are substantially in alignment tangentially to the spindle or the package. As shown in Figs. 1 and 2 the yarn y from a supply passes through a tension device 85 and over a detector lever 126 to a downwardly-opening slot in the depending bifurcated flange 46 of the thread guide 45 from which it passes directly to the top of the winding spindle 5 to the package P being wound thereon. The guide is carried by a plate 41 slidable in grooves in a slot in a trough-shaped arm 30 extending from the upper part 25 of a rockable casing 22 and the plate carries a pin with a cam-shoe 39 engaging reversing helical grooves in a cam 33 rotatably mounted in the arm 30. The part 25 of the casing 22 is bolted by screws 26 on the lower part 24 which is secured to the tubular pivotal support 23 extending horizontally below the spindle 5, the casing rocking away from the winding spindle as the growing package forces the thread guide away from the spindle. The support 23 is mounted in bearings in the arms 75, 76 Fig. 8 of a bracket 73 adjustably pivoted about a stud 77 projecting from a platform 74 bolted to the bed 2 of the machine and fixed in its adjusted position by four bolts 79 extending through arcuate slots in the platform and threaded into the bracket. When a cylindrical package is to be wound, the support 23 is adjusted so that its longitudinal axis is parallel to the axis of the winding spindle and the parts of the casing 22 are adjusted by the screws 26 so that the longitudinal axis of the cam 33 is parallel to the axis of the winding spindle ; if a conical package with planed ends is to be wound on a conical tube, the upper part 25 of the casing 22 is adjusted on the lower part to position the axis of the cam 33 parallel to the tapered surface of the tube, the casing shell rocking about an axis parallel to that of the winding spindle ; and if a conical package with concave-convex ends is to be wound the upper part 25 of the casing 22 and the support 23 are both adjusted so that the axis of the cam 33 and of the support are parallel to the tapered surface of the tube. The winding spindle 5 is journalled in a bracket 4 bolted to the top of an upstanding platform on the bed 2 and is driven by a belt 12 engaging a pulley 6 on the spindle ; the belt drives a number of spindles and is maintained in contact with each pulley by a pulley 13 journalled in an arm 14 fixed to a rock shaft 15 carrying a starting handle 18 and by grasping the handle 18 and a fixed handle 19 the pulley 13 is moved to force the belt 12 into downwards engagement with the pulley 6 to drive the spindle. The tension device 85 is similar to that described in Specification 538,126, the spring-controlled plunger 89 thereof engaging the inclined face of a cam 91 adjustably mounted on a vertically slidable bar 92 connected by a link 95 to arm 94 adjustably fixed to the casing 22, the cam being adjusted so that the tension on the yarn is' maintained constant or reduced as the winding proceeds. The cam 33 is driven from the shaft 5 through gainer mechanism, shaft 50 journalled in the pivotal support 23, and epicyclic gearing in the casing 22. The thread guide is forced against the package being wound by a counterweighted lever 65 connected by a link 66 to an arm 67 projecting radially from the pivotal support 23. The cam 33 &c. is enclosed by a sheet metal cover 20, the casing 62 has a removable panel 64 and the elongated opening in the casing, through which the end of the pivotal support 23 projects, is formed with a flange fitted with an oil-guard 47 for preventing escape of lubricant through the opening. The gainer mechanism comprising an inter-changeable compound gear 54, 55 Fig. 9, carried by a stud 56 adjustable in a slot in a bracket 57 pivotally mounted on a stud 49 and adjustable on an arm 59 fastened by a bolt 61 engaging a slot in the casing 62 enclosing the gears. The gear 55 meshes with a pinion 8 and the shaft 5 and the gear 54 with a pinion 53 journalled on the stud 49 are engaging a pinion 52 on the shaft 50 disposed in the tubular pivotal support 23 and carrying, at its end disposed in the casing 22, a pinion 51 gearing with a pinion 68 journalled on a stud 69 in the upper part of the casing and connectd to a sprocket wheel 70 which drives a sprocket wheel on the shaft of the cam 33 ; when the upper part of the casing on the pivotal support are to be adjusted, the pinions 52, 68 are replaced by helical gears. The yarn is fed to the package in the manner described in Specification 558,082. The Specification as open to inspection under Sect. 91 comprises also (1) a detent shoulder on a lever 96, Fig. 9 (Cancelled), provided on the shaft 15 for engaging a spring controlled pivoted latch 97 to hold the belt in driving engagement with the pulley 6 and the lever carries a mercury switch 106 which is in a circuit comprising a solenoid 101 and a pair of contacts the core 100 of the solenoid being controlled by a spring 104 and engaging the lower end of the latch 97 and the switch being tilted when the belt 12 is in driving engagement with the pulley 6, to close the circuit through the solenoid, so that when the solenoid is energised through the closing of either of the contacts the core is moved forward against the action of its spring 104 to disengage the latch 97 from the detent shoulder of the lever 96 and a spring 102 connected to an arm 103 on the shaft 15 rocks the shaft so that the pulley 13 is raised, the belt 12 thus moving from driving engagement with the pulley 6 and a brake shoe carried from the shaft 15 engaging a brake pulley 7 on the shaft 5 to stop the latter. One of the contacts is closed when the winding of a package is completed, an abutment adjustably fixed to the lower part 24 of the casing 22 then engaging a leaf spring carrying a pin for actuating the contact ; the other contact is closed when the yarn breaks or the supply fails by movement of the detector lever 126 which, when not supported by the yarn, is overbalanced by a weight to insert a member between the members of the contact. This subject-matter does not appear in the Specification as accepted.