Patent GB-677728-A (GB)
Title: Improvements in or relating to automatic yarn winding machines
Inventor: MUSCHAMP HAROLD LIONEL
IPC: B65H67/04
Filed: 1949-04-09
Abstract: 677,728. Winding yarn. MUSCHAMP, H. L. June 17, 1949 [April 9, 1949], No. 9674/49 Classes 120(ii) and 120(iii) An automatic yarn winding machine, for winding yarn on a core held between centres, is provided with means to separate the centres to release a wound package and to receive a new core, means for presenting a new core to the centres comprising a magazine holding the cores in orderly succession and a core-holding device adapted to hold positively but releasably a single core for presentation to the centres, means for feeding the lowermost core from the magazine to the holding device, means for moving the magazine to bring the holder, which is spaced therefrom, to present the core between the centres, means for closing the centres on to the core and means for returning the magazine to normal position. The magazine for holding and delivering successive cores to the winding station comprises a bracket 57 fixed to the winding head A, an arm 59, pivotally suspended from the bracket carrying rods 60 on which are adjustably mounted a pair of channel-shaped members 61 guiding the column of cores 52. At the lower end of the magazine are angle pieces 64 and spring fingers 63 between which the lowest core, when in feeding position, is cradled, the column of cores being supported by adjustable arms 75 fixed to a rod 74. The magazine is rocked forwards about its pivot through a link 70 and an arm 67, which is attached to the arm 59 by a stud and slot 68, 69, by the operation of an "automaton " the core 52<SP>1</SP> being then gripped between winding centres 10<SP>1</SP>, 23<SP>1</SP>. When the magazine is swung backwards, the lowermost core in the column engages the arms 75 and is pushed by them into position between the elements 63, 64, the other cores of the column being supported upon the arms 75. Yarn is guided on to the rotation core by a reciprocating guide 76 urged against the quill by a spring-pressed plate 77 to which is attached a curved link 82 having a slot 82<SP>1</SP> engaged by a pin 83 attached to an arm 84 carried by a sleeve 12 to which is connected devices 16 for positively removing a completed quill from winding position as set forth in Specification 666,639. When sleeve 12 is rotated to bring the grippers 16 into contact with the quill, the arm 84 moves the link 82 to raise the plate 77 clear of the quill the plate being held in the raised position by a friction block 79, which contacts a quadrant 80 pivoted at 81, even although the sleeve 12 and arm 84 move whilst the quill is lowered during the doffing of the same. A yarn collector fork 39, as set forth in Specification 666,638 can now move beneath the raised plate 77 and lead the yarn towards the winding spindle 10 where it is later gripped between a flange 10<SP>2</SP> and a spring-pressed conical portion 50, as. described in Specification 666,638. Upon the return movement of the fork 39, a stud 38<SP>1</SP> thereon engages the face of a trigger 87 to swing a pivoted rod 85 outwardly and press the nose 80<SP>1</SP>, of the quadrant 80 and so release the friction block 79 to allow the plate 77 to be pressed downwardly to engage a new core between the winding centres. The stud 38<SP>1</SP> upon passing the trigger 87 allows the rod 85 to swing back and the friction mechanism 79, 80 is brought back to its normal position. Below the winding head is a single-rotation " automaton " shaft 118 which may be clutched to a continually-rotating pinion 12, which drives a gear 126, when a pin 124 is depressed to engage one of a series of holes 125 in the gear 126. A cam 117 rocks a shaft 100, through a link 116, to rock a lever 101 to raise a stud 102 away from an arm 98 so that, providing the starting handle 105' is "on" the arm 98 may rise to turn the shaft 95 to move the driving belt 93 on to the fast pulley to drive the winding head. A manually operated trigger 111 which rocks a sleeve 109 withdraws a locking catch so that a spring 104 may turn the shaft 100 round the belt fork to throw the belt on to the loose pulley. The pulley 92, through which the winding head is driven, is expansible so that the proximity of consecutive turns of yarn is adjustable. A link 115, operated by the breakage of the yarn being wound also operates, through a trip lever 114. to move the starting handle to the " off " position. The machine includes a presettable measuring device 140 including scales 141 marked off in yardage or in spindle revolutions. This device comprises a feed screw 128 with which engages a nut portion on a block 134 to which the pointer 140 is attached. The feed screw is rotated by pawl and ratchet mechanism 147, 129 from a measuring wheel 150 or from a pawl 151 mounted on an eccentric 152 rotated by reduction gearing from the spindle winding 'head. When the block 134 reaches a collar 132, the sleeve 109 is turned to release a catch to stop the winding and start the " automaton" for effecting the various changes.