GB1302721A - - Google Patents

Abstract

1302721 Cigarette making machines HAUNI WERKE KORBER & CO KG 3 March 1970 [26 March 1969] 10122/70 Heading A2C [Also in Division F2] In the production of rod-like articles, such as filter cigarettes, involving the assembly of components of one kind which components of another kind, the feed of components of one kind is subject to control such that a signal to interrupt the feed becomes effective only when one of the components reaches a predetermined position in advance of the assembly point. The invention is described applied to a machine for uniting filter plugs with tobacco rods by paper connector sheets, in which the supply of both the filter plugs and the connector sheets may be interrupted. Filter rods received from a magazine are cut into double-length plugs and conveyed by grooved feed drums 14, 15, Fig. 2a to a conveyer drum on which they are interposed between aligned pairs of tobacco rods. The drum 14 is driven by a clutch 13, Fig. 2, held in engagement by a spring 39 acting through a lever 31, and disengaged by a solenoid 32. To interrupt the supply of filter plugs, a pushbutton 33 is operated to energize the solenoid through an amplifier 36 which receives pulses from a non contact-making device 37 coacting with a synchronizing disc 41 driven by the machine, the arrangement being such that the solenoid is not energized until the drum 14 is so positioned that one of the filter plugs carried thereon lies in a predetermined relationship to the drum 15. The clutch is re-engaged by operation of a push button 34 which interrupts a holding circuit 48, 49, synchronism of the drums 14, 15 being ensured by correspondence of the number of teeth 38 on the clutch with the number of grooves on the drum 14. A paper web 18, Fig. 3, is drawn from a reel by rollers 51, 52, gummed, and cut into individual connector sheets for application to the aligned tobacco rods and filter plugs which then pass to a rolling drum, an air-flow resistance testing drum, a dividing drum, and turning and conveyor drums. One revolution of the roller 51, which is driven through a clutch 17, feeds a length of paper which corresponds to four connector sheets. The clutch is driven by a toothed member 71 which has four radial projections 73 for driving engagement with a lever 61 pivotally mounted at 59 on the driven member 63 which is connected by a shaft 66 with the roller 51. The pivotal movement permitted the lever 61 on energization of a solenoid 57 to disengage the clutch is limited by a latch member 77 which prevents immediate disengagement of the lever from a projection 73 but is moved radially outwardly a sufficient distance to strike one of four stationary projections 76 whereby the latch member is swung out of engagement with the lever 61, allowing the lever to swing out of engagement with the projection 73. The driven member 63 is then braked by engagement of a knife edge 62 carried by the lever 61 with a stationary fine-toothed ring 83.