Method and machining apparatus

Abstract

A machining apparatus is disclosed for blanking sheet material in producing electric energy storing devices, with a continuous material supplying line and with two machining units each provided with an outward and return reciprocating movement and with an opening and closing movement, adopting the closed blanking position in the outward stroke and the open position in the return stroke, in which each machining unit processes portions of material that are not processed by the other machining unit.

1 . Machining apparatus comprising:
 a supplying line arranged for supplying material with continuous motion in an advancement direction:   a first machining unit for machining the material arranged along said supplying line with the possibility of adopting a closed position in which it can perform machining tasks on a portion of material and an open position in which it is possible for it not to interfere with the material;   a second machining unit for machining the material arranged along said supplying line with the possibility of adopting a closed position in which it can perform machining tasks on a portion of material and an open position in which it is possible far it not to interfere with the material, said second machining unit being arranged after said first machining unit with reference to said advancement direction;   a control arrangement configured for controlling said first machining unit in such a manner as to machine a succession of first portions of material-spaced apart from one another along said advancement direction and for controlling said second machining unit in such a manner as to machine a succession of second portions of material spaced apart from one another along said advancement direction;   wherein:   said first machining unit is provided with a reciprocating movement with an outward stroke in said advancement direction and a return stroke in an opposite direction, with the possibility of adopting said closed position in at least one part of the outward stroke and said open position in at least one part of the return stroke;   said second machining unit is provided with a reciprocating movement with an outward stroke in said advancement direction and a return stroke in an opposite direction, with the possibility of adopting said closed position in at least one part of the outward stroke and said open position in at least one part of the return stroke.   
     
     
         2 . Apparatus according to  claim 1 , wherein said control arrangement is configured in such a manner that at least one first portion of material is different from the second portions of material. 
     
     
         3 . Apparatus according to  claim 1 , wherein said control arrangement is configured in such a manner that at least one second portion of material is different from the first portions of material. 
     
     
         4 . Apparatus according to  claim 1 , wherein said control arrangement is configured in such a manner that at least one second portion of material is arranged between two first portions of material. 
     
     
         5 . Apparatus according to  claim 1 , wherein said control means-arrangement is configured in such a manner that at least one first portion of material is arranged between two second portions of material. 
     
     
         6 . Apparatus according to  claim 1 , wherein said control arrangement is configured in such a manner that each first portion of material is spaced along said advancement direction from each of the second portions of material. 
     
     
         7 . Apparatus according to  claim 6 , wherein the first portions of material are spaced apart from one another at a constant pitch and the second portions of material are spaced apart from one another at said constant pitch. 
     
     
         8 . Apparatus according to  claim 7 , wherein the first portions of material and the second portions of material are arranged alternately between themselves at a reciprocal distance that is equal to half said pitch. 
     
     
         9 . Apparatus according to  claim 1 , wherein said first machining unit and said second machining unit are configured for performing the same machining tasks on the respective portions of material. 
     
     
         10 . Apparatus according to  claim 1 , wherein said first machining unit and/or said second machining unit are configured for performing one or more of the following machining tasks on the respective portions of material: cutting/blanking, removal of material, applying objects and/or material, surface treatment, heat treatment, forming. 
     
     
         11 . Apparatus according to  claim 1 , comprising a dragging arrangement arranged for dragging the material with continuous motion along said supplying line in said advancement direction. 
     
     
         12 . Apparatus according to  claim 11 , wherein said dragging arrangement is arranged after said first and second machining units with reference to said advancement direction. 
     
     
         13 . Use of an apparatus according to  claim 1 , producing electric energy storing devices. 
     
     
         14 . Machining method comprising the steps of:
 supplying material in an advancement direction with a continuous supply motion;   performing machining tasks on a succession of first port ions of said material by a first machining unit that is movable with reciprocating movement with outward strokes and return strokes;   performing machining tasks on a succession of second portions of said material by a second machining unit that is movable with reciprocating movement with outward strokes and return strokes, said second portions being at least partly different from said first portions each second portion being at least partly spaced away from each first portion in said advancement direction.