drehkopfvorrichtung for the loading of the speiseschaechte of machines for the packaging of cigarettes

摘要

1,200,121. Emptying cigarette containers; cigarette trays; endless conveyers; feeding cigarettes to a hopper. A. SERAGNOLI, E. SERAGNOLI and M. C. SERAGNOLI, [trading as G.D. S.A.S. DE ENZO SERAGNOLI E ARIOSTO SERAGNOLI]. 18 July, 1967 [28 July, 1966], No. 32861/67. Headings B8A, B8C, B8D and B8S. Apparatus for emptying cigarette trays into a hopper supplying a packaging machine includes a head rotatable about a horizontal axis and capable of supporting two or more trays symmetrically relative to the axis, the head receiving filled trays and rotating to invert them over the hopper. While one tray is discharging, another is in a position to be removed and replaced. Infeed and outfeed conveyers.-Filled containers are fed in by conveyer chains 62, 63 and the empties discharged by chains 64, 65. The conveyers are arranged to permit trays to be slid on to them and discharged at right angles to their direction of travel. The chains carry two forms of support bar, Fig. 10, one, 191, having rollers 194 which engage the base of a tray and the other 190, of which there are several for each tray supported, having rollers 193 engaging the rear wall 105b, Fig. 11. Dogs 217, 218, Fig. 1, on reciprocating overhead conveyer chains 204, 205 slide the trays off and on to the inlet and discharge conveyers. Emptying containers.-The rotary head 98 carries two trays, each with their open faces against central webs 101 and their bases initially supported by a stepped portion 103. Catches (158, 159, 158SP1/SP, 159SP1/SP), Fig. 3 (not shown), protrude through the end plates 99, 99SP1/SP of the head to hold them against the webs and pivoted bars (112, 112SP1/SP, 113, 113SP1/SP), Fig. 3, engage along the length of the open top. In their inner position, these bars overlap the ends of the uppermost layer of cigarettes, retaining them in place during rotation. A filled tray is fed by the overhead conveyer into position in front of the head and is pushed on to the portion 103 and against the web 101 by a reciprocating member 179. The member 179 includes an electromagnet 232 for engaging the tray which is of magnetic material. The tray is secured in the head by the catches. The head then rotates and the bars withdraw, permitting the cigarettes to fall into the hopper 233. While this is taking place, an empty container is fed to the discharge conveyer and replaced by a filled one. The apparatus is controlled by photo-electric means monitoring the cigarettes in the hopper. A pusher 229 discharges empties from the chains 64, 65.