Device for separating doses of plastics material

A device for separating doses of synthetic plastics, comprising

• (a) an extruding device for extruding synthetic plastics having a first group of extruder outlets and a second group of extruder outlets;
• (b) a movable element that is movable in an advancing direction along a closed loop path arranged in such a manner as to pass opposite said extruding device for each revolution of said movable element;
• (c) at least one first group of dose separating elements carried by said movable element to separate at least one dose of synthetic plastics from said first group of extruder outlets for each revolution of said movable element;
• and
• (d) at least one second group of dose separating elements carried by said movable element to separate at least one dose of synthetic plastics from said second group of extruder outlets for each revolution of said movable element;
• wherein said first group of dose separating elements is movable on said movable element, with respect to said second group of dose separating elements, in such a manner as to take on at least a first configuration, in which said first group of dose separating elements is free from interference, during the movement of said movable element along said path, with said second group of extruder outlets or with the synthetic plastics that exit therefrom, and a second configuration, in which said first group of dose separating elements could interfere at each revolution of the movable element with said second group of extruder outlets or with the synthetic plastics that exit therefrom, the device comprising a driving device to prevent this interference taking selectively said first group of dose separating elements to said first configuration and to said second configuration, respectively, before and after the passage, at each revolution of the movable element, of said first group of dose separating elements at said second group of extruder outlets.