Strapping machine with a strap tightening unit

摘要

A strapping machine includes a machine body which defines a package-strapping space with a strap guide path. A package support plate is disposed above the strap guide path, and has opposite left and right sides which extend in a direction transverse to the strap guide path. A strap is fed to encircle the left and right sides of the package support plate. A swing arm is mounted pivotally to the machine body, and is turnable away from the machine body for strap tightening operation. A clamp unit is mounted movably on the swing arm. A swing lever is mounted swingeably underneath the package support plate adjacent to one of the left and right sides in such a manner that one end of the swing lever passes over the strap guide path, and that the other end of the swing lever is urged to abut against a micro switch which is electrically coupled to a driving unit for driving the clamp unit.