Patent DE-102008052862-B3 (DE)
Title: Device for producing ice-cream, comprises an ice-cream maker for each types of pasty ice-cream masses, which is supplyable to an extruder using a pressure delivery line, where the extruder has a tube-arrangement with an outer extruder tube
Inventor: HOVEN HEINRICH-GERHARD
IPC: A23G9/28
Filed: 2008-10-23
Granted: 2010-04-15
Abstract: The device (10) comprises an ice-cream maker for each types of pasty ice-cream masses (16), which is supplyable to an extruder using a pressure conveying line (15), where the extruder has a tube-arrangement with an outer extruder tube (12), which extends parallel to an inner extruder tube (13) and latter encloses with a circular free cross-section. Both extruder tubes downwardly form an inlet opening and upwardly form an outlet opening related to a flow direction of the ice-cream masses. The outer and inner extruder tubes have a circular-cylindrical cross-section. The device (10) comprises an ice-cream maker for each types of pasty ice-cream masses (16), which is supplyable to an extruder using a pressure conveying line (15), where the extruder has a tube-arrangement with an outer extruder tube (12), which extends parallel to an inner extruder tube (13) and latter encloses with a circular free cross-section. Both extruder tubes downwardly form an inlet opening and upwardly form an outlet opening related to a flow direction of the ice-cream masses. The outer and inner extruder tubes have a circular-cylindrical cross-section and are coaxially arranged to each other. Only the inlet opening of the outer extruder tube forming the circular free cross-section is connected with the pressure delivery line while the inlet opening of the inner extruder tube forms a loading opening for individually supplied ready-to-eat solid circular-cylindrical foodstuffs, which lead the inner extruder tube that is a pressureless conveyor tube to its outlet opening, so that each individual foodstuff seizes from the flow of the ice-cream mass of the outer extruder tube, covers with the ice-cream mass and is latter picked up in the flow direction of the ice-cream mass. The individual foodstuffs are sequentially arranged from the inlet opening of the inner extruder tube up to its outlet opening in a gapless manner, and have same caliber as the inner extruder tube under inclusion of lower masses. The total foodstuffs have same axial lengths. Each foodstuff is formed by a wafer. The foodstuffs are coated with a barrier layer effective to a related humidity. The barrier layer consists of chocolate. The foodstuffs are supplyable to the inlet opening using a magazine and a separating device downstream to the magazine. The magazine has a magazine shaft, in which the foodstuffs are arranged parallel to the flow direction of the ice-cream masses prevailing in the outer extruder tube. A feeding device pushing the foodstuffs into the inlet opening of the inner extruder tube is arranged at the output side of the magazine shaft. The feeding device has an endlessly rotatably guiding conveyor belt provided with a motor drive. The rotational speed of the conveyor belt is slightly larger than the flow velocity of the ice-cream mass within the outer extruder tube. A cutting device is arranged outside of the outlet openings of the outer and inner extruder tubes adjacent to the extruder tube-arrangement for the partition of the ice-cream strands. The cutting device is an electrically heatable cutting wire. A cutting plane of the cutting device extends orthogonal to the longitudinal axis of the extruder tube arrangement. A measuring device is arranged to the outer extruder tube for the flow velocity of the ice-cream masses flowing through the outer extruder tube. The cutting extension of the cutting device takes place on the ice-cream strand in dependent of the flow velocity of the ice-cream mass and the axial length of the individual foodstuff. An independent claim is included for a method for producing ice-cream.