Apparatus and method for forming a multi-compartmented tray from a sheet material

摘要

An apparatus and method are disclosed for forming a multi-compartmented tray from a sheet material without tearing or bowing. At least a portion of one compartment, and preferably the entire compartment, is formed in advance of other compartments. The apparatus for doing so comprises a preformer on the male die for forming the first compartment before the rest of the male die engages the workpiece.