Device for laying down a thin metal wire on a surface

Abstract

A device for laying a thin metal wire taken from a coil of wire stock onto a surface, in particular onto the surface of a sheet, using a presser. The device includes a mechanism exerting mechanical tension in a region of the wire that lies between the rotary coil of wire stock and the presser, and a wire-guiding device provided in the region. The wire-guiding device includes a tensioning device that acts directly on the wire taken off the coil of wire stock. That makes it possible effectively and appreciably to compensate for changes in relative speeds at which the wire and the sheet progress.

1 - 14 . (canceled) 
   
   
       15 . A device for laying onto a surface a thin metal wire taken from a coil of wire stock, using a presser, the device comprising:
 means for exerting mechanical tension in a region of the wire that lies between the coil of wire stock and the presser,   a wire-guiding device provided in the region, and   wherein the wire-guiding device comprises a tensioning device that acts directly on the wire taken off the coil of wire stock.   
   
   
       16 . The device as claimed in  claim 15 , wherein the wire is guided in the region of the tensioning device over a portion of variable length. 
   
   
       17 . The device as claimed in  claim 16 , wherein the variable length of the portion can be defined using at least one mobile tensioning roll or a sliding part that has an equivalent function. 
   
   
       18 . The device as claimed in  claim 15 , wherein the wire is guided through the tensioning device by, in turn, a first turn roll, a mobile tensioning roll, and another turn roll, or by corresponding sliding parts. 
   
   
       19 . The device as claimed in  claim 15 , wherein the tensioning device comprises a tensioning roll or a sliding part that has an equivalent function and that is mounted on an elastically urged pivoting lever. 
   
   
       20 . The device as claimed in  claim 15 , wherein the wire is guided through the tensioning device by a mobile and/or curved sliding rail. 
   
   
       21 . The device as claimed in  claim 17 , wherein the tensioning roll or the sliding part that has an equivalent function are mounted in a sliding guide. 
   
   
       22 . The device as claimed in  claim 15 , wherein the tensioning device comprises at least one spring and/or a drive mechanism that is feedback controlled. 
   
   
       23 . The device as claimed in  claim 15 , wherein the tensioning device comprises a device for measuring the tension in the wire at any moment. 
   
   
       24 . The device as claimed in  claim 15 , further comprising a brake, braking force of which is feedback controlled, so as to damp rotational movement of the coil of wire stock. 
   
   
       25 . The device as claimed in  claim 15 , further comprising means for mechanically corrugating the wire between the tensioning device and the pusher. 
   
   
       26 . The device as claimed in  claim 15 , comprising plural laying devices. 
   
   
       27 . The device as claimed in  claim 15 , wherein the surface that is to have the wire laid thereon is a sheet fixed to a flat or curved laying surface, and the wire is laid down by relative movement of the pusher and/or of the sheet, one relative to the other. 
   
   
       28 . The device as claimed in  claim 15 , wherein a support element for supporting the sheet can be moved reversibly with respect to the pusher.