STRAPPER WITH IMPROVED WINDING AND CUTTING ASSEMBLY

摘要

A strapping machine for positioning a strap material around an associated load and tensioning the strap material around the load includes a frame for supporting the load, a chute positioned on the frame for receiving the strap material and orienting the strap material around the load, a strap supply and a strapping head for extracting the strap from the supply, feeding the strap through the chut e around the load, passing the strap from the chute around the load, retracting and tensioning the strap. The strapping head includes feed rollers and retraction rollers f or feeding and retracting the strap and a winder for tensioning the strap around the load. The winder is positioned between the feed and retraction rollers and the strap supply. The winder includes a rotating head portion having a stationary element and a pivotal element. The stationary and pivotal elements each define an outer surface around which the strap material is wound and a slot therebetween for receivi ng the strap material. The stationary and pivotal elements each further define a gripping portion at about respective ends opposingly facing one another. The pivotal element is pivotal between an open position in which the gripping portions a re spaced from one another and a closed position in which the gripping portions cooperate with one another to engage and secure the strap material therebetween. The winder rotates from a home position in which the winder is in the open position and an other than home position in which the winder is in the close d position to exert a tension in the strap.