Device and method for through-cutting of an extruded ice mass

A device for producing individual ice cream product pieces by through-cutting of an extruded ice cream mass, comprising an ice cream extruder having a nozzle out of which the ice cream mass is extruded, and a cutting means located immediately after the nozzle for cutting up the extruded ice cream mass into said product pieces which fall down on a receiving device for further processing,

• wherein the cutting means comprises:
• a first knife, which is reciprocably arranged in a transverse, first plane immediately after the outlet of the nozzle and arranged to perform a first transverse stroke with a first stroke length,
• a second knife which is reciprocably arranged in a second plane which is parallel to the first plane, the second plane being arranged immediately below the first plane with respect to the flow direction out of the nozzle, the second knife cooperating with the first knife for through-cutting the extruded ice cream mass and being arranged to perform a second transverse stroke with a second stroke length which is smaller than the first stroke length of the first knife, and
• means for simultaneous reciprocation of the first knife and the second knife.