| 摘要 |
<p>A tension wrap packing machine has a supporting frame and a driving assembly mounted in the supporting frame, a main drive shaft is mounted in the supporting frame and at one end has a combined supporting member and safety closure disc fixedly connected thereto to be rotated by the drive shaft when the driving assembly is in operation. Mounted and rotatable with the combined supporting member and closure disc are a package supporting assembly for supporting a package to be wrapped thereon and in spaced relation thereto a wrapping material supporting assembly for the material to wrap the package. Package supporting assembly and wrapping material supporting assembly in addition to rotating with the closure disc are independently rotatable, the package supporting assembly being rotated by a planetary driving means, and the wrapping material supporting assembly being rotated by an auxiliary driving means operatively connected between the driving assembly and wrapping material supporting assembly. The auxiliary driving means includes, an adjustable means to regulate the force or tension required to be exerted on the wrapping material to remove it from the dispensing roll supporting assembly when the wrapping material is wrapped around the package on the package supporting assembly. The package supporting assembly includes means to support packages of varying sizes within a given range. The wrapping material supporting assembly includes, means to forceably grip the roll of wrapping material in assembled position thereon and means to move the roll of wrapping material to and fro along an axis parallel to the axis of rotation of the supporting member.</p> |
