Screwing assembly for screwing closing plugs onto syringes

摘要

A closing plug is screwed onto the threaded open end of a syringe by a screwing assembly provided with a pocket adapted to receive the closing plug from a hopper which houses in its inside a plurality of closing plugs, a support device of the syringe, and an actuating device for moving the pocket and the support device with respect to each other with a roto-translating movement about and along a longitudinal axis of the syringe so as to screw the closing plug onto the open end of the syringe itself.

主权项

1. Screwing assembly for screwing closing plugs onto syringes, each syringe presenting a longitudinal axis and comprising a cylinder provided with a threaded open end and a plunger engaged in a sliding manner in the cylinder itself;
the screwing assembly being characterized in that it includes: a fixed support frame closed on a top end by a hopper, the hopper housing in its inside a plurality of closing plugs, the hopper including a plate having an outlet for the closing plugs from the hopper itself; a pocket mounted on a bottom surface of the plate, positioned under the plate, and arranged inside the fixed support frame, the pocket suited to receive and hold the closing plug fed each time through said outlet; a support device for supporting the syringe; actuating means for moving the pocket and the support device with respect to one another with a roto-translating movement around and along said longitudinal axis, so as to screw the closing plug onto said open end; and a shock absorber device positioned under the plate and interposed between the plate and the support frame, so as to allow the pocket to move with respect to the syringe parallel to said longitudinal axis while the pocket remains positioned under the plate, and while the closing plug is being screwed onto the open end of the syringe itself while the pocket remains positioned under the plate.