| 摘要 |
The machine comprises a horizontal transfer line (2) formed by mutually parallel rubber-coated rollers underneath and tangent to a horizontal plane on which the sheet (L) to be processed travels, which sheet is advanced, by the rollers driven by suitable means (3, 4, 104, 5), in a predetermined and constant direction (F), two of these rollers (102, 202) being designed as opposing rollers for corresponding parallel applicator rollers (17, 19) above them, the latter rollers being driven by suitable means (18, 20) and having differing characteristics enabling them to perform two different painting operations, in one of which the applicator roller (17) rotates in the same direction and with the same speed of advance as the sheet, and in the other of which the applicator roller (19), also referred to as the reverse-type roller, rotates in the opposite direction to the direction of advance of the sheet and at an adjustable speed. The machine comprises: means to feed an appropriate amount of paint, ink or other product to said transfer rollers; comprises means (7-10) to control the misalignment of the opposing roller (102) of the reverse applicator roller (19) in order to adapt this pair of rollers to the processing of sheets of different thicknesses and/or characteristics, and comprises means to ensure that, depending on the painting process to be carried out, one of said two applicator rollers (17, 19) can be held in the low position of engagement with the sheet and can be activated, while the other applicator roller can be held in a high position of non-interference with said sheet and can be inactive.
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