Apparatus for strapping items with tension bands

Abstract

The strapping installation is configured to strap items with bands, in particular to strap pulp bales with paper bands. An assembly conveys the tensioning bands around the items to be strapped, and the bands are then tensioned and connected to form a closed ring. The conveying assembly is form by a drawing configuration, such as a belt or the like, which encloses the respective item and is designed with a carry-along element for a band. The drawing configuration is assigned a drive with which the carry-along element, together with the forward end of the tensioning band can be moved around the item.

We claim:  
     
         1 . An installation for strapping items, comprising: 
 a conveying assembly for conveying a tensioning band around an item to be strapped, said conveying assembly having a drawing configuration and a carry-along element for a tensioning band mounted thereto, and having a drive connected to said drawing configuration for moving said carry-along element around the item; and    a tensioning and connecting device for tensioning the band and for connecting the tensioned band enclosing the item.    
     
     
         2 . The strapping installation according to  claim 1 , wherein said drawing configuration is formed with a belt encompassing the item to be strapped and carrying said carry-along element for slaving the band around the item.  
     
     
         3 . The strapping installation according to  claim 1 , wherein the item to be strapped is a pulp bale, and said tensioning band is a paper band to be strapped onto the pulp bale.  
     
     
         4 . The strapping installation according to  claim 1 , which comprises a plurality of deflecting rollers about which said drawing configuration is guided, and wherein at least one of the deflecting rollers is a driven roller.  
     
     
         5 . The strapping installation according to  claim 1 , wherein said drawing configuration is a toothed belt.  
     
     
         6 . The strapping installation according to  claim 1 , wherein said carry-along element has two clamping jaws that are adjustable relative to one another, said clamping jaws are disposed laterally outside said drawing configuration in a direction of movement thereof, and said clamping jaws are configured to clamp said tensioning band therebetween.  
     
     
         7 . The strapping installation according to  claim 6 , which comprises a spring disposed to act on said two clamping jaws to hold said clamping jaws in a closed position, and an actuating device assigned to said carry-along element for adjusting said clamping jaws into an open position in which said tensioning band may be introduced therebetween.  
     
     
         8 . The strapping installation according to  claim 1 , wherein said carry-along element includes a first clamping jaw fastened to said drawing configuration and a second clamping jaw that is adjusted relative to said first clamping jaw.  
     
     
         9 . The strapping installation according to patent  claim 8 , wherein said first clamping jaw is formed with a through-passage adapted to receive a bolt projecting from said second clamping jaw, an actuating spring encloses the bolt, and an actuating device assigned to said bolt for adjusting said clamping jaws into an open position.  
     
     
         10 . The strapping installation according to  claim 1 , which comprises a channel assigned to said carry-along element and through which said tensioning band can be pushed toward said carry-along element, and a clamping device for displacing said tensioning band relative to said conveying channel.  
     
     
         11 . The strapping installation according to  claim 1 , wherein said tensioning and connecting device includes a tensioning assembly for said tensioning band, an adhesive-bonding device for said tensioning band, a pressing device for said tensioning band, and a cutting device.  
     
     
         12 . The strapping installation according to  claim 11 , which comprises a channel assigned to said carry-along element and through which said tensioning band can be pushed toward said carry-along element, and a first clamping device for displacing said tensioning band relative to said conveying channel.  
     
     
         13 . The strapping installation according to  claim 12 , which comprises a carriage carrying said clamping device and said adhesive-bonding device, and said carriage is displaceably mounted counter to an advancement direction of said tensioning band for strapping the item, and which further comprises a second, fixed clamping device assigned to said first clamping device.