Apparatus for handling a film-type cover strip on a packing material web for a packaging container

Abstract

The invention relates to a device ( 10 ) for handling a film-like cover strip ( 1 ) on a packaging material web ( 2 ) for a packaging container, comprising a first device ( 20 ) for forming a through-hole in the packaging material web ( 2 ), a second device ( 25 ) for separating one section of the cover strip ( 1 ) and a third device ( 40 ) for joining the separated sections of the cover strip ( 1 ) to the packaging material web ( 2 ) in the region of the through-hole. The section of the separated cover strip ( 1 ) covers the throughole. According to the invention, said three devices ( 20, 25, 40 ) are arranged on a common station ( 13 ) which comprises a frame ( 11 ) on which the position of at least one of the three devices ( 20, 25, 40 ) can be altered with respect to the packaging material web ( 2 ).

1 . An apparatus ( 10 ) for handling a film-type cover strip ( 1 ) on a packing material web ( 2 ) for a packaging container, the apparatus comprising a first device ( 20 ) for forming a through-hole in the packing material web ( 2 ), a second device ( 25 ) for separating a section of the cover strip ( 1 ), and a third device ( 40 ) for connecting the separated section of the cover strip ( 1 ) to the packing material web ( 2 ) in an area of the through-hole, wherein the section of the separated cover strip ( 1 ) covers the through-hole, characterized in that the three devices ( 20 ,  25 ,  40 ) are arranged at a common station ( 13 ), which has a frame ( 11 ) on which the position of at least one of the three devices ( 20 ,  25 ,  40 ) in relation to the packing material web ( 2 ) can be changed. 
     
     
         2 . The apparatus as claimed in  claim 1 , characterized in that the three devices ( 20 ,  25 ,  40 ) are arranged on a common support element ( 14 ) which is movable, on a linear guide ( 52 ) arranged on the frame ( 11 ), transversely with respect to a feed direction ( 16 ) of the endless packing material web ( 2 ) that is fed, into an area of the three devices ( 20 ,  25 ,  40 ). 
     
     
         3 . The apparatus as claimed in  claim 2 , characterized in that the support element ( 14 ) is coupled to a drive, and in that the drive can be controlled by a control device ( 55 ) which detects positions of position marks ( 5 ) on the packing material web ( 2 ) by means of at least one sensor ( 53 ) and, if the position marks ( 5 ) deviate from a desired position, controls the drive accordingly. 
     
     
         4 . The apparatus as claimed in  claim 2  , characterized in that the frame ( 11 ) receives two support elements ( 14 ), each support element ( 14 ) supporting a respective set of the three devices ( 20 ,  25 ,  40 ), and in that each set of the three devices ( 20 ,  25 ,  40 ) cooperates with a separate packing material web ( 2 ). 
     
     
         5 . The apparatus as claimed in  claim 2 , characterized in that the second device ( 25 ) and the third device ( 40 ), as viewed in the feed direction ( 16 ) of the packing material web ( 2 ), are arranged in a fixed position on the support element ( 14 ), in that the first device ( 20 ), as viewed in the feed direction ( 16 ) of the packing material web ( 2 ), is arranged movably on the support element ( 14 ), and in that the first device ( 20 ) is coupled to a further drive ( 57 ), which can be controlled by a control device ( 55 ) which detects positions of position marks ( 5 ) on the packing material web ( 2 ) using at least one sensor ( 53 ) and, if the position marks ( 5 ) deviate from a desired position, controls the further drive ( 57 ) accordingly, such that a distance of the second device ( 25 ) and the third device ( 40 ) from the first device ( 20 ) changes. 
     
     
         6 . The apparatus as claimed in  claim 5 , characterized in that a fourth device ( 45 ) is provided for forming at least one opening or weakening in the cover strip ( 1 ) in an area of the through-hole, and in that the fourth device ( 45 ), as viewed in the feed direction ( 16 ) of the packing material web ( 2 ), follows the second device ( 25 ) and the third device ( 40 ), wherein the fourth device ( 45 ) is likewise arranged on the support element ( 14 ). 
     
     
         7 . The apparatus as claimed in  claim 6 , characterized in that the fourth device ( 45 ) and the first device ( 20 ) are rigidly connected to each other. 
     
     
         8 . The apparatus as claimed in  claim 1 , characterized in that the second device ( 25 ) comprises a transport device ( 30 ) with which the cover strip ( 1 ), stored in the form of a roll ( 4 ), is fed transversely with respect to a feed direction ( 16 ) of the packing material web ( 2 ). 
     
     
         9 . The apparatus as claimed in  claim 8 , characterized in that the transport device ( 30 ) cooperates with a vacuum-assisted carriage element ( 35 ), with which the section of the cover strip ( 1 ) to be separated is held in an area of a cutting device ( 27 ) and is then fed into an area of the third device ( 40 ). 
     
     
         10 . The apparatus as claimed in  claim 8 , characterized in that the third device ( 40 ) is a heat sealing device. 
     
     
         11 . The apparatus of  claim 2 , characterized in that the packing material web ( 2 ) is fed intermittently into the area of the three devices ( 20 ,  25 ,  40 ).