초록 ▼

The process serves for closing filled bags (52) making use of an approximately horizontal conveying track (3). The bags are fed on a conveying track with constant conveying speed to a spreading apparatus (16 to 51) and then to a closing station (12, 13). In order that the bag material be stressed as

The process serves for closing filled bags (52) making use of an approximately horizontal conveying track (3). The bags are fed on a conveying track with constant conveying speed to a spreading apparatus (16 to 51) and then to a closing station (12, 13). In order that the bag material be stressed as little as possible in the case of a greater capacity, provision is made for a movement to be superimposed on the spreading tools (21) of the spreading apparatus during the spreading process, in the conveying direction (4), that attains the conveying speed, at latest, at the end of the spreading process. In this fashion, the bag end is spread apart without the bag experiencing a delay by the spreading tools (21) reaching therein.

대표청구항 ▼

Apparatus for automatically closing filled, open-topped bags, which comprises: conveyor means for continuously advancing the filled bags in generally upright orientation at a predetermined speed along a predetermined input path from a receiving end to a discharge end; a pair of pivotal depending fin

Apparatus for automatically closing filled, open-topped bags, which comprises: conveyor means for continuously advancing the filled bags in generally upright orientation at a predetermined speed along a predetermined input path from a receiving end to a discharge end; a pair of pivotal depending fingers mounted for reciprocal movement along said conveyor means in a direction generally parallel to the input path; means for effecting reciprocal movement of said fingers substantially synchronous with movement of each successive bag along a predetermined portion of the input path; means mounted for movement with said fingers for effecting pivotal movement of said fingers about an axis generally parallel to the input path into and out of the top of each successive bag responsive to positioning of the bags along the input path; means mounted for movement with said fingers for effecting pivotal movement of said fingers about an upright axis generally transverse to the input path into and out of a spread position engaged with the top end of each successive bag responsive to positioning of the bags along the input path; means for closing the spread top ends of each successive bag advanced by said conveyor means along the input path; means for folding the closed, top end of each successive bag advanced by said conveyor along the input path; and means for securing the folded, closed top end of each successive bag advanced by said conveyor along the input path.