| 摘要 |
A banding and labeling system for containers includes a central drum which is heated for activation of adhesive coating provided on bands and labels which are to be secured to containers. The drum is provided with carrying elements employing suction, referred to as mouthpieces, which include pockets for holding literature and support bands in appropriate positions for securing the literature to containers. Dispensers are mounted peripherally around the drum at successive work stations for transference of banding materials, labeling materials, and literature packets to the mouthpieces as the drum rotates. At a final work station, a conveyer transports the containers to the drum whereupon the banding and labeling materials are secured to the containers during rotation of the containers between the drum and pressure pads which engage the adhesive coatings to the outer surfaces of the containers. Vacuum valves are provided for initiating and for terminating suction via sets of suction holes to various portions of each of the elements which are to be mounted on the containers. The initiation and termination of vacuum permits the transference of the foregoing elements from the dispensers to the drum and from the drum to the containers. The vacuum valve includes an insert having vacuum supply channels therein for selectively presetting the duration of suction to the suction holes. |
