Hot runner injection nozzle and drive train

An injection nozzle (1) for an injection molding device including an actuator interconnected via a drive train (3) to at least one closure element (4) arranged movable in a nozzle head (2) in a first direction (a), the drive train (3) comprising:

• a. a cam mechanism (5) with a cam head (6) including a cam head block (7) comprising per each closure element (4) a bracket (8), wherein the bracket (8) includes at least one inlay (9), the cam head (6) and the inlay (9) together being arranged moveable in a second direction (b), wherein
• b. per each closure element (4) the at least one inlay (9) includes a first drive surface (10) which interacts with a second drive surface (11) arranged at the closure element (4) at least during closing of the closure element (4);
• c. the cam head block (7) per each closure element (4) comprising a third drive surface (12) which interacts with a fourth drive surface (13) arranged at the closure element (4) at least during opening of the closure element (4).