Patent ID: 8104422

Claim:
An adhesive metering and spreading unit for bonding machines, comprising: a first rubber-clad roller ( 6 ) that takes up an adhesive from a tank ( 10 ); a second roller ( 7 ) which rotates in contact with said first roller ( 6 ); a third rubber-clad roller ( 8 ) which rotates in contact with said second roller ( 7 ) designed to receive the adhesive from said second roller and spreads the adhesive onto a film; a fourth counter-roller ( 9 ) which presses the film onto the third rubber-clad roller ( 8 ), said first, second and third rollers each being supported by first supports ( 12 , 13 , 14 ) fitted with skids ( 15 ) independently sliding along guides ( 16 ) placed on abutments ( 11 ); and a means ( 17 ) being provided to move said first supports ( 12 , 13 , 14 ) from a rest position in which the rollers are distanced to an operational position in which the rollers are substantially in contact with one another, each of said first, second and third rollers being mounted on first supports ( 12 , 13 , 14 ) by second supports ( 19 ) with limited slide in respect to the first supports ( 12 , 13 , 14 ), the distance from said second supports being varied micrometrically in said operational position by micrometric devices ( 18 ) manually operated.