Process and device for handling a bag during the sewing operation

Abstract

The invention relates to a process of and device for handling an upright filled bag with a closed bag flap while the bag flap is being sewn in a sewing station. The device comprises two pivotable arms with clamping means which is able to fix the closed bag flap underneath a sewing line, as well as feeding means for the arms by means of which the clamping means can be guided underneath past a sewing position.

1 . A process of handling an upright filled bag with a closed bag flap while the bag is being sewn in a sewing station, comprising a bag flap, when held so as to be clamped in underneath a sewing line by clamping means when passing through the sewing station and which can be guided underneath past a sewing position.  
   
   
       2 . The process according to  claim 1 , wherein the bag flap is held resiliently in the passing direction when passing through the sewing station.  
   
   
       3 . A device for handling an upright filled bag with a closed bag flap while the bag flap is being sewn in a sewing station, comprising two pivotable arms with clamping means which are able to fix the closed bag flap underneath a sewing line, and by feeding means for the arms by means of which said clamping means can be guided underneath past a sewing position.  
   
   
       4 . A device according to  claim 3 , wherein the clamping means, is resiliently arranged in the transportation and sewing direction at least at one of the arms.  
   
   
       5 . A device according to claims  3  or  4 , wherein said clamping means comprises a strip at one of the arms and two stoppers at the other one of the arms, which arms can be made to contact one another in order to clamp in the closed bag flap at its ends.  
   
   
       6 . A device according to  claim 5 , wherein the one of the arms comprises two levers and that said clamping means with said strip, is held by two fixing brackets and said levers and the fixing brackets are connected to one another in pairs via spring plates.  
   
   
       7 . A device according to  claim 6 , wherein the horizontal distance between said levers and the horizontal distance between said fixing brackets slightly deviate from one another and that said spring plates are cranked to as to be S-shaped in opposite directions relative to one another.