Rolling Matrix for a Powder Coating System for Finishing the Surface of a Product and the Relative Method for Its Realisation

Abstract

The rolling matrix for a powder coating system roller comprises at least one elastic layer presenting a plurality of ridges and depressions adapted to reproduce a decorative pattern on the surface of a product, and an elastic substrate supporting the layer, said substrate having basically the same elastic deformability as the layer in a direction parallel to their lying plane, and elastic deformability higher than that of the layer in the orthogonal direction to their lying plane.

1 . Rolling matrix for a roller for a powder coating system characterised in that it comprises at least one elastic layer presenting a plurality of ridges and depressions adapted to reproduce a decorative pattern on the surface of a product, and an elastic support substrate for said layer, said substrate presenting basically the same elastic deformability as said layer in a direction parallel to their lying plane, and elastic deformability higher than that of said layer in the orthogonal direction to their lying plane. 
   
   
       2 . Rolling matrix according to  claim 1  characterised in that said substrate has a thickness greater than that of said layer. 
   
   
       3 . Rolling matrix according to one or more of the previous claims characterised in that said layer is composed of a silicone material containing no acetate. 
   
   
       4 . Rolling matrix according to one or more of the previous claims characterised in that said layer and said substrate are homogeneously united along their whole contact surface by means of gluing. 
   
   
       5 . Rolling matrix according to one or more of the previous claims characterised in that said substrate bears, on the opposite side to said layer, a further stiffening layer adapted to conform said matrix to said roller. 
   
   
       6 . Rolling matrix according to one or more of the previous claims characterised in that said further layer is composed of a sheet of plastic material. 
   
   
       7 . Rolling matrix according to one or more of the previous claims characterised in that said stiffening layer and said substrate are homogeneously united along their contact surface by means of gluing. 
   
   
       8 . Rolling matrix according to one or more of the previous claims characterised in that said plurality of ridges and said plurality of depressions are created by means of laser engraving. 
   
   
       9 . Product with powder coating produced by a rolling matrix according to any one of the previous claims. 
   
   
       10 . Method for the realisation of a rolling matrix for a powder coating system, adapted to reproduce a decorative pattern on the surface of a product, characterised in that said decorative pattern is acquired in the form of digital information, that said information is transmitted to an electronic processor, said information being processed by means of said electronic processor in a manner so as to generate a command signal, and by means of said command signal, to control a laser engraving device on said surface of one elastic layer that composes said matrix in a manner to create according to said information, a plurality of ridges and depressions adapted to reproduce said decorative pattern. 
   
   
       11 . Method according to the previous claim, characterised in that an elastic substrate supporting said layer is applied to said elastic layer, said substrate having basically the same elastic deformability as said layer in a direction parallel to their lying plane, and elastic deformability greater than that of said layer, in the orthogonal direction to their lying plane. 
   
   
       12 . Method according to any one of the previous claims, characterised in that said layer and said substrate are glued together along the contact surface. 
   
   
       13 . Method according to any one of the previous claims, characterised in that applied to said substrate, on the opposite side to said layer, is a further stiffening layer adapted to conform said matrix to said roller. 
   
   
       14 . Method according to any one of the previous claims, characterised in that for the duplication of said elastic layer, said laser engraving device is controlled in a manner so that it realises on the surface of a duplicator layer a plurality of ridges and depressions representing said decorative pattern in negative mode, the material of said elastic layer is deposited by means of a centrifugal action on said duplicator layer in order to form a duplicate of said elastic layer representing said decorative pattern in positive mode, and said duplicate is removed from said duplicator layer. 
   
   
       15 . Rolling matrix for a roller for a powder coating system adapted to reproduce a decorative pattern on the surface of a product, and the method for the realisation of said matrix, according to the aforesaid description and claims.