GB695953A - Improved means for delivering bobbins to the spindles of a textile twisting, doubling or spinning frame - Google Patents

Abstract

695,953. Doffing arrangements for spinning and like machines. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION. May 17, 1951 [May 18, 1950], No 12404/50. Classes 120(ii) and 120(iii) Bobbins for delivery to the spindles of a spinning or like frame are horizontally stacked in and delivered from a magazine in groups, the delivered bobbins thereafter being swung through an arcuate path to a vertical position over the spindles, from which they are transferred to the spindles. The apparatus has particular application in a domng carriage as described in Specification 597,887. The magazine 62 preferably is of sheet metal construction, is open at the top and bottom and has handles 66 on the end panels, to facilitate removal and replacement Loading of the magazine with empty bobbins may be ejected on a bench or elsewhere for subsequent application to a doffing carriage. Attached to the front and rear walls are channel members 67, 68 forming guides for locating stacks of bobbins 32 at half-spindle spacing. The bottom of the magazine incorporates a slotted bottom plate 69, the slots being at spindle spacing, and above plate 69 a slotted shutter 72 is slidably mounted. A pin 50 fixed to. the sliding shutter 72 enters into a notch in the forked upper end of a bell-crank lever 48a, when the magazine 62 is placed on the doffing. carriage. Actuation of the lever 48a by means of a cam on a shaft 16 causes a sidewavs movement of the shutter 72 and allows bobbins 32 from alternate stacks to drop through the slots in the shutter into positions where they are supported by solid portions of the plate 69. On the return movement of the shutter, these bobbins fall through the apertures of plate 69 and are replaced on the shutter 72 by further bobbins from the stacks. From the plate 69 the bobbins, fall on to the base plate 26 of a bobbin receiver pivoted at 25a and provided with side plates 25 to which arms 28' are rigidly attached A link 29 connects arms 28 with arms 24. on the shaft 16 which is rocked by a cam 21 through levers 18, 19. The rocking motion of shaft 16 swings the receiver through approximately 90 degrees so that the bobbins 32 on the base plate 26 are held vertically above the spindles 30 by a bar 31 that is tripped at the appropriate time by a cam 43 operating through levers 36, 37, 39, 40 to allow the bobbins 32 to fall on to the spindles 30.