Frame structure for the support of a silkscreen plate, comprising: - cornice elements each having a main extension in a longitudinal direction and ends inclined with respect to said longitudinal direction, so as to consecutively fit to each other, - and coupling means of said cornice elements to said silkscreen plate, - said cornice elements comprising: - a first main face at least partially surmountable by an edge of said silkscreen plate, having a recessed portion with the thickness of said silkscreen plate, said silkscreen plate having edges engaged on said recessed portion so as to be suitable to form a substantially flat surface in correspondence with said first main face, - a second main face, opposite the first, contouring a cavity suitable to be engaged by tensioning means of said silkscreen plate, and a contoured channel extending in a longitudinal direction in each of said cornice elements and coming out in said ends, - connection members suitable to engage said cornice elements to each other, made of brackets suitable to be embedded for the sliding interlocking of said ends in correspondence with said contoured channels, - said frame being characterised in that said brackets are dimensioned so as to be suitable to be forcibly inserted into contoured channels facing each other, - said coupling means between said silkscreen plate and each said cornice element are defined by gluing and - said recessed portion has niches suitable for the accumulation of glue. - cornice elements each having a main extension in a longitudinal direction and ends inclined with respect to said longitudinal direction, so as to consecutively fit to each other, - and coupling means of said cornice elements to said silkscreen plate, - said cornice elements comprising: - a first main face at least partially surmountable by an edge of said silkscreen plate, having a recessed portion with the thickness of said silkscreen plate, said silkscreen plate having edges engaged on said recessed portion so as to be suitable to form a substantially flat surface in correspondence with said first main face, - a second main face, opposite the first, contouring a cavity suitable to be engaged by tensioning means of said silkscreen plate, and a contoured channel extending in a longitudinal direction in each of said cornice elements and coming out in said ends, - connection members suitable to engage said cornice elements to each other, made of brackets suitable to be embedded for the sliding interlocking of said ends in correspondence with said contoured channels, - a first main face at least partially surmountable by an edge of said silkscreen plate, having a recessed portion with the thickness of said silkscreen plate, said silkscreen plate having edges engaged on said recessed portion so as to be suitable to form a substantially flat surface in correspondence with said first main face, - a second main face, opposite the first, contouring a cavity suitable to be engaged by tensioning means of said silkscreen plate, and a contoured channel extending in a longitudinal direction in each of said cornice elements and coming out in said ends, - connection members suitable to engage said cornice elements to each other, made of brackets suitable to be embedded for the sliding interlocking of said ends in correspondence with said contoured channels, - said frame being characterised in that said brackets are dimensioned so as to be suitable to be forcibly inserted into contoured channels facing each other, - said coupling means between said silkscreen plate and each said cornice element are defined by gluing and - said recessed portion has niches suitable for the accumulation of glue.