Device and method for depositing sheet-shaped substrates so as to form a stack

Abstract

The present invention relates to a device and a method for depositing sheet-shaped substrates ( 6 ), in particular printing materials, in a printing machine so as to form a stack. The device comprises a tray ( 10 ) for receiving the substrates, said tray having a tray surface ( 8 ) that is tilted about a first axis and about a second axis, relative to a horizontal. Also provided are a lifting device for lifting and lowering the tray, as well as a first abutment having a first abutment surface and a second abutment ( 26 ) having a second abutment surface, with the first and the second abutment surfaces being arranged so as to be perpendicular to each other, and with substrates deposited on the tray coming to abut against the first and the second abutment surfaces due to the tilting of the tray surface.

1 . Device for depositing sheet-shaped substrates in a printing machine so as to form a stack, the device comprising:
 a tray for receiving the substrates, the tray having a tray surface that is tilted about a first axis and about a second axis, relative to a horizontal;   a lifting device for lifting and lowering the tray;   a first abutment having a first abutment surface; and   a second abutment having a second abutment surface, with the first and the second abutment surfaces being arranged so as to be perpendicular to each other, and with substrates deposited on the tray coming to abut against the first and the second abutment surfaces due to the tilting of the tray surface, wherein the lifting device is arranged in such a manner that the lifting device lifts and lowers the tray parallel to the second abutment surface.   
     
     
         2 . The device according to  claim 1 , wherein the first axis is parallel to a printing material transport axis, and the second axis extends perpendicularly to the first axis and is in a plane parallel to the tray surface. 
     
     
         3 . The device according to  claim 1 , wherein the second abutment is arranged so as to be perpendicular to the tray surface. 
     
     
         4 . The device according to  claim 1 , wherein the second abutment is vertically arranged. 
     
     
         5 . The device according to  claim 1 , wherein the second abutment is fastened to the tray. 
     
     
         6 . The device according to  claim 1 , wherein the second abutment is adjustable. 
     
     
         7 . The device according to  claim 6 , wherein the tray includes a linear guide for the second abutment. 
     
     
         8 . The device according to  claim 6 , wherein a setting wheel is provided, by means of which the second abutment can be adjusted. 
     
     
         9 . The device according to  claim 1 , wherein the second abutment is configured as a wire bracket. 
     
     
         10 . The device according to  claim 1 , wherein the first abutment is part of a depositing member by means of which the substrates are deposited on the tray. 
     
     
         11 . The device according to  claim 1 , wherein the first abutment is inclined in such a manner that it forms a right angle with an adjacent region of the tray surface. 
     
     
         12 . The device according to  claim 11 , wherein the lifting device lifts and lowers the tray parallel to the first abutment surface. 
     
     
         13 . The device according to  claim 1 , wherein the tray surface comprises a first and a second depositing region, the regions being each tilted differently from the horizontal about the second axis.