Scaling device

Abstract

A device ( 1 ) for the scaled depositing of bags ( 6, 6 a ) arriving immediately behind each other from a bag production machine ( 12 ), the device comprising a conveyor belt ( 2 ) and a pressing belt ( 3 ) extending at least partially parallel at a distance to the conveyor belt ( 2 ), characterized by at least one beater arm ( 4 ) directly in front of the conveyor belt ( 2 ), wherein a force can be applied to the end of each bag ( 6 ) by means of the beater arm ( 4 ), the force pressing the end of the bag ( 6 ) beneath the level of the conveyor surface of the conveyor belt ( 2 ).

1 . An apparatus for the overlapped deposition of bags arriving immediately one after another from a bag-making machine, the apparatus being provided with a conveyor belt and with a pressing belt that runs at least in part parallel to the conveyor belt at a small spacing, characterized in, that wherein at least one deflecting arm immediately upstream of the conveyor belt can exert a force on the end of each bag to push the end of the bag below the level of the transport surface of the conveyor belt. 
     
     
         2 . The apparatus according to  claim 1  wherein the surface of the deflecting arm that engages the end of the bag is formed by a roller. 
     
     
         3 . The apparatus according to  claim 1  wherein the deflecting arm is pivoted at one end and the pivot axis is parallel to the transport direction of the bags. 
     
     
         4 . The apparatus according to  claim 3 , further comprising
 two deflecting arms that can be rotated synchronously in the opposite direction.   
     
     
         5 . The apparatus according to one of  claims 1  further comprising
 a pinch roller for creating a flared intake mouth between conveyor belt and pressing belt.   
     
     
         6 . The apparatus according to  claim 5  wherein the position of the pinch roller of the pressing belt is variable in the transport direction. 
     
     
         7 . The apparatus according to  claim 1  wherein the conveying surface of the conveyor belt is inclined downward with respect to the horizontal at least in part in the transport direction, and the pivot axis of the deflecting arm is above the end of the conveyor belt adjacent the deflecting arm. 
     
     
         8 . The apparatus according to  claim 1  further comprising
 a suction apparatus under the conveyor belt.   
     
     
         9 . The apparatus according to  claim 1  wherein the speed of the conveyor belt corresponds to the speed of the pressing belt and is lower than a feed speed of the bags. 
     
     
         10 . The apparatus according to  claim 1  further comprising
 a cross cutter mounted in the transport direction of the bags upstream of the deflecting arm.   
     
     
         11 . An apparatus for converting a stream of end-to-end flat flexible objects arriving in a transport direction at a feed speed into a stream of overlapped objects, the apparatus comprising:
 a transport belt;   a pressing belt closely juxtaposed with the transport belt and defining therewith an intake mouth open upstream in the direction, the stream of end-to-end flat flexible objects being fed in the direction into the mouth;   means for driving the belts at a transport speed substantially slower than the feed speed, whereby the objects are slowed when they engage between the belts;   a deflecting arm upstream of the lower transport belt and pivotal about an axis generally parallel to the transport direction; and   means for pivoting the arm into engagement with one end of each of the objects to displace the engaged ends transversely out of alignment in the direction with an immediately adjacent end of a preceding or following object, whereby the objects overlap between the belts.   
     
     
         12 . The apparatus defined in  claim 11  wherein the means for pivoting engages the arm against the trailing end of each of the objects to displace it downward and transversely to the transport direction. 
     
     
         13 . The apparatus defined in  claim 11  wherein one of the belts is provided with a pinch roller pressing the one belt against the other belt, the other belt extending generally parallel to the transport direction upstream from the pinch roller, the one belt extending at an acute angle to the transport direction away from the other belt upstream of the pinch roller. 
     
     
         14 . The apparatus defined in  claim 13  wherein the one belt is generally above the other belt. 
     
     
         15 . The apparatus defined in  claim 11  wherein there are two of the arms each pivotal about a respective axis, the axes flanking the stream of objects. 
     
     
         16 . An apparatus for converting a stream of end-to-end flat flexible objects arriving in a transport direction at a feed speed into a stream of overlapped objects, the apparatus comprising:
 a lower transport belt;   an upper pressing belt closely juxtaposed with the transport belt;   a pinch roller pressing one of the belts belt against the other belt, the other belt extending generally parallel to the transport direction upstream from the pinch roller, the one belt extending at an acute angle to the transport direction away from the other belt upstream of the pinch roller and defining therewith an intake mouth open upstream in the direction, the stream of end-to-end flat flexible objects being fed in the direction into the mouth, the belts pinching the objects downstream of the pinch roller;   means for driving the belts at a transport speed substantially slower than the feed speed, whereby the objects are slowed when they are pinched between the belts;   a deflecting arm upstream of the lower transport belt and pivotal about an axis generally parallel to the transport direction; and   means for pivoting the arm into engagement with a trailing end of each of the objects to displace the trailing ends transversely downward out of alignment in the direction with an immediately adjacent end of a following one of the objects, whereby the objects overlap between the belts.