Distributor unit for liquid substances

Distributor unit, comprising a reservoir containing a liquid substance, an anilox cylinder and a cliché cylinder onto which is movably fitted a cliché jacketed, the reservoir, the anilox cylinder and the cliché cylinder being movable from and to a cylinder on which travels a web-shaped material which has to receive said substance, the distributor unit having an operator side and a transmission side, said anilox cylinder and said cliché cylinder being held by corresponding supports on operator side and on transmission side, a device for locking the cliché cylinder in cantilever position when the corresponding cliché jacket has to be substituted, said device being associated to the support on transmission side of the cliché cylinder, the support on operator side of the cliché cylinder comprising a first and a second element automatically movable from and to the cliché cylinder, which elements in configuration of use hold the cylinder on the operator side and in configuration of substitution of cliché jacket are reciprocally spaced disengaging the operator side of the cliché cylinder, said second element of the support on operator side of the cliché cylinder being associated to a corresponding actuator which controls its movement from and to the axis of the cliché cylinder characterized by the fact that said second element of the support on operator side of the cliché cylinder constitutes a stop for the distributor unit when the latter moves forwards towards said transmission cylinder.