Pneumatically actuated strapping apparatus

Abstract

A pneumatically actuated strapping apparatus for strapping plastic tape around a packaging item includes a motorized tensioning device, a motorized welding device for the plastic tape, and a pneumatic control device that has a first manually operated valve for operating the tensioning device and a second manually operated valve for operating the welding device. In order to spare an operator the trouble of obtaining essentially the same tensioning state of the plastic tape prior to the welding step each time a packaging job is repeated, a third valve is included which allows the welding device to be switched to an automatic operating mode.

What is claimed is: 
     
         1 . A pneumatically actuated strapping apparatus for strapping a plastics tape around a package, comprising:
 a motorized tensioning device;   a motorized welding device for the plastics tape; and   a pneumatic control system, having a first manually actuated valve for actuating the motorized tensioning device, a second valve for manual actuation of the motorized welding device, and a third valve, with which the actuation of the welding device can be switched to automatic.   
     
     
         2 . The strapping apparatus as claimed in  claim 1 ,
 wherein the second manually actuated valve and the third valve are provided as separate elements.   
     
     
         3 . The strapping apparatus as claimed in  claim 1 ,
 wherein the second manually actuated valve and the third valve are configured such that they are mutually integrated.