Abstract: The invention relates to a device for opening and closing injection nozzles in an injection moulding tool, with a control gear for non-positive connection of a drive unit to a nozzle needle arrangement and one or more hot runner nozzles of the injection moulding tool. Here the drive unit is arranged outside the injection moulding tool and the control gear is designed as a push rod gear with a first drive push rod for non-positive connection to the drive unit, and at least one further driven push rod for non-positive connection to the nozzle needle arrangement. The shafts of the drive pushrod intersect each other and have at least one pair of sliding surfaces so that a parallax movement of the first push rod gives rise to a parallax movement of the further push rod.