Frame assembly of blanking tool

Abstract

A frame member is provided for a lower blanking tool frame assembly of a carton die cutting machine. The frame assembly includes an outer frame for supporting a sheet of die cut paper material during a blanking operation. The sheet of paper material defines a substantially horizontal plane. An inner grid is supported by the outer frame. The inner grid is defined by a plurality of bars having first and second sides. The first side of each bar includes a longitudinally extending notch.

1 . A frame assembly for a lower blanking tool of a carton die cutting machine, comprising: 
 an outer frame for supporting a sheet of die cut paper material during a blanking operation, the sheet of paper material defining a substantially horizontal plane and the outer frame including: 
 a pair of opposite, spaced apart longitudinally extending side rails; and  
 a pair of opposite, spaced apart cross rails extending crosswise between said side rails; and  
   a plurality of lengthwise bars extending axially between the side rails and having first and second longitudinally extending sides, the first sides of the lengthwise bars rails include longitudinally extending slots therein.    
   
   
       2 . The frame assembly of  claim 1  further comprising a plurality of crosswise bars extending axially between the cross rails and having first and second longitudinally extending sides, the first sides of the crosswise bars including longitudinally extending slots therein.  
   
   
       3 . The frame assembly of  claim 1  wherein the plurality of lengthwise bars are generally parallel.  
   
   
       4 . The frame assembly of  claim 1  wherein the plurality of crosswise bars are generally parallel.  
   
   
       5 . The frame assembly of  claim 1  wherein each of said cross rails having an inner surface disposed substantially transverse to the plane defined by said sheet of paper material and having a T-shaped slot formed therein opening to said inner surface, each of said side rails having an upper surface disposed substantially parallel to the plane defined by said sheet of paper material and having a T-shaped slot formed therein opening to said upper surface, said T-shaped slots each defining a downwardly extending axis disposed at an acute angle with respect to the plane defined by said sheet of paper material.  
   
   
       6 . The frame assembly of  claim 5  further comprising a plurality of corner pieces rigidly interconnecting said rails together, each corner piece including fasteners extending into the T-shaped slots of adjacent side and cross rails.  
   
   
       7 . The frame assembly of  claim 5  wherein said T-shaped slot is formed along the entire length of said side rails.  
   
   
       8 . The frame assembly of  claim 5  wherein said T-shaped slot is formed along the entire length of said cross rails.  
   
   
       9 . The frame assembly of  claim 6  wherein each cross rail includes a ledge formed in said inner surface, and each corner piece has a lip projecting therefrom that engages said ledge.  
   
   
       10 . The frame assembly of  claim 9  wherein said ledge is formed along the entire length of each cross rail.  
   
   
       11 . A frame member for a lower blanking tool frame assembly of a carton die cutting machine, comprising: 
 an outer frame for supporting a sheet of die cut paper material during a blanking operation, the sheet of paper material defining a substantially horizontal plane; and    inner grid supported by the outer frame, the inner grid defined by a plurality of bars having first and second sides, the first side of each bar including a longitudinally extending notch.    
   
   
       12 . The frame member of  claim 11  wherein the outer frame includes an elongated rail having an upper surface, a lower surface, an outer surface and an inner surface, the rail having a bolt-receiving T-shaped slot formed therein opening to the inner surface and defining a downwardly extending axis disposed at an acute angle with respect to said inner surface.  
   
   
       13 . The frame member of  claim 12  wherein said angle is between about 30° to about 80°.  
   
   
       14 . The frame member of  claim 12  wherein said angle is about 65°.  
   
   
       15 . The frame member of  claim 12  wherein the inner surface of said rail further includes a ledge formed therein.  
   
   
       16 . The frame assembly of  claim 11  wherein the plurality of bars includes a plurality of generally parallel lengthwise bars.  
   
   
       17 . The frame assembly of  claim 16  wherein the plurality of bars includes a plurality of generally parallel crosswise bars generally perpendicular to the lengthwise bars.  
   
   
       18 . A frame assembly for a lower blanking tool of a carton die cutting machine, comprising: 
 an outer frame for supporting a sheet of die cut paper material during a blanking operation, the sheet of paper material defining a substantially horizontal plane and the outer frame including: 
 a pair of opposite, spaced apart longitudinally extending side rails; and  
 a pair of opposite, spaced apart cross rails extending crosswise between said side rails;  
   a plurality of generally parallel, lengthwise bars extending axially between the side rails and having first and second longitudinally extending sides, the first sides of the lengthwise bars rails including longitudinally extending slots therein; and    a plurality of generally parallel crosswise bars extending axially between the cross rails and having first and second longitudinally extending sides, the first sides of the crosswise bars rails including longitudinally extending slots therein.    
   
   
       19 . The frame member of  claim 18  wherein the outer frame includes an elongated rail having an upper surface, a lower surface, an outer surface and an inner surface, the rail having a bolt-receiving T-shaped slot formed therein opening to the inner surface and defining a downwardly extending axis disposed at an acute angle with respect to said inner surface.  
   
   
       20 . The frame member of  claim 19  wherein said angle is between about 30° to about 80°.  
   
   
       21 . The frame member of  claim 19  herein said angle is about 65°.  
   
   
       22 . The frame member of  claim 19  wherein the inner surface of said rail further includes a ledge formed therein.