摘要:
A method for packaging moulded items, in which a moulded item is placed between a film and a vacuum guide, a vacuum is produced by means of the vacuum guide and the film is laid around the moulded item under the effect of the vacuum, makes it possible to create portions of agent that do not have any sealing seams in the film encapsulating the moulded item.
摘要:
The present invention relates to a method and an apparatus for wrapping bundles of printed matter by placing a folded film sheet around such bundles when these are conveyed to and through a wrapping situation. The apparatus includes a lower, through-going belt conveyor with mutually separated conveyor straps and a couple of overhead band conveyors in line with each other creating a transverse gap between them. Below the spaces between the lower conveyor straps and just below the gap a transverse row of compressed air nozzles directed upwards is arranged.
摘要:
The present invention relates to a method and an apparatus for wrapping bundles of printed matter by placing a folded film sheet around such bundles when these are conveyed to and through a wrapping situation. The apparatus includes a lower, through-going belt conveyor with mutually separated conveyor straps and a couple of overhead band conveyors in line with each other creating a transverse gap between them. Below the spaces between the lower conveyor straps and just below the gap a transverse row of compressed air nozzles directed upwards is arranged.
摘要:
A device is described for closing and laterally sealing plastic film wrapped bundles containing sheets or the like, by wrapping them in a thermally shrinkable plastic film, which comprises two sealing plates (25,26) suitable to be moved against lateral opposite sides of a bundle (29) for sealing them. These plates (25,26) are preferably hinged on two slides (2,3) suitable to be contemporaneously either approached or moved apart from each other as a function of the width of the bundle (29) to be laterally sealed. Two nozzles (31,32) are moreover provided, which form air jets against laterally protruding portions (30) of the plastic film, so that said protruding portions are easily folded by said plates (25,26). A so closed and sealed bundle is then carried inside an oven for thermally shrinking the wrapped film.
摘要:
A conveyor system pre-inserts a portion of the web into a first belt before the portion is gripped between the first belt and a second belt. In one exemplary embodiment, a pair of lips of a web are inserted into a corresponding first pair of belts and then the pair of lips are secured in the first pair of belts by inserting a second pair of belts into the first pair of belts over the pair of lips.