Picking up and closing unit for soft plastic caps, particularly for straight chamber capping machines

摘要

The picking up and closing unit for soft plastic caps is particularly useful for straight chamber capping machines, in which the containers to be closed are supplied in a continuous way, resting on a conveyor belt and pressed between two belts which proceed parallel to the conveyor belt at a certain distance from it, till a position in which each of them hooks with its upper edge the lower edge of a cap which leans out of a suitable feed guide, entraining the cap with it, at first under a picking up roller, then under a pressure roller and finally under a finishing roller. While the pressure roller presses the cap centrally, a lower tab of the feed guide keeps lifted up the back ege of the cap, making the air way out from the container to be closed easier and allowing the carrying out of a certain depression inside the closed container.