Apparatus for processing resin sealed lead frame

Abstract

Resin sealed lead frames are processed by modular processing work stations related in number to a plurality of steps used in processing the lead or leads of the resin sealed lead frame. The work stations are separate modules which are detachably interconnected, whereby the number of modules can be exactly correlated to the number of steps actually required for processing the lead or leads of the resin sealed lead frame. As required, modules can be added or omitted. The resin sealed lead frame is sequentially advanced through the modules in steps corresponding to at least two pitches, whereby one pitch is defined as the on-center spacing between two neighboring products on the lead frame. Such feed advance permits performing at least two processing steps simultaneously. Thus, the method for processing the resin sealed lead frame and the apparatus therefore are adaptable to a change in the type of processing and to the production volume.

What is claimed is:  
     
         1 . A processing apparatus for a resin sealed lead frame, characterized in that processing means related to a plurality of steps to be used for processing a lead of a resin sealed lead frame are separated as modules and detachably connected.  
     
     
         2 . The processing apparatus for the resin sealed lead frame according to    claim 1   , wherein said processing means as said modules include a cavity flow cut module, a resin cut module, dam bar cut module and a pinch lead cut module.  
     
     
         3 . The processing apparatus for the resin sealed lead frame according to    claim 1   , further comprising receiving means for receiving each work separated from said resin sealed lead frame after said lead processing.  
     
     
         4 . A processing apparatus for a resin sealed lead frame, comprising: 
 a feeding portion for a resin sealed lead frame before lead processing arranged along a feeding path of said resin sealed lead frame;    a lead processing portion for said resin sealed lead frame detachably connected to said feeding portion; and    a removing portion for said resin sealed lead frame after said lead processing detachably connected to said lead processing portion;    said lead processing portion including a plurality of lead processing basic units having same lead processing function and detachably connected in series.    
     
     
         5 . The processing apparatus for the resin sealed lead frame according to    claim 4   , wherein a work cutting and separating portion is provided in said removing portion.  
     
     
         6 . The processing apparatus for the resin sealed lead frame according to    claim 4   , wherein a region not performing said lead processing is provided between said mutually adjacent lead processing basic units and between said lead processing portion and said removing portion and said regions are spaced by a plurality of pitches when a pitch between said works on said resin sealed lead frame corresponds to one pitch.  
     
     
         7 . The processing apparatus for processing the resin sealed lead frame according to    claim 4   , further comprising resin cut means, dam bar cut means and lead cut means.