DEVICE TO PREVENT THE DRYING OF NOZZLES OF A MACHINE FOR THE PREPARATION OF FLUID COLORING PRODUCTS

摘要

A device to prevent the drying of nozzles of a machine for the preparation of fluid coloring products having a delivery head. The de vice comprises an anti-drying member and an actuation mechanism to take it from an inactive position distant from the delivery head to an operating position in contact with the delivery head. The actuation mechanism comprises an actuation lever oscillating with respect to a fixed support and a group of parallelogram levers commanded by the actuation lever and connected to the anti-drying member so as to keep an upper surface of the latter constantly parallel to the lower surface of the delivery head during the movement from the inactive position to the operating position.