Refrigeration – With comminutor or cutter
Patent
1992-01-07
1993-05-25
Tapolcai, William E.
Refrigeration
With comminutor or cutter
62345, 99537, 425308, 426518, B02C 1802
Patent
active
052129608
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a method of producing extruded edible ice products, typically round bar shaped ice bodies optionally coated with chocolate or another material. That kind of simple bodies are well suited to be manufactured by extrusion, as they can just be cut off in desired lengths from an extruded string of frozen ice material.
BACKGROUND OF THE INVENTION
By extrusion, ice substance is soft and formable, e.g. at a temperature of -5.degree., and, for ensuring a real separation between the extruded bodies by the cutting of the extruded string, the extruded string should be further frozen before the cutting takes place. It is a usual practice, therefore, that an ice sausage string, or preferably a number of parallel ice strings, be extruded onto a conveyor belt which brings the string through a first freezing zone, in which the ice material is frozen to a `medium low` temperature by which the material is reasonably stiff or self carrying, yet still easily cuttable, whereafter the string is conveyed through a cutting station for being cut into single bodies, which, on the same or a further conveyor, are brought through a following freezing zone in which they are hard frozen. Such a final freezing will often be effected in a special freezing store after packaging or wrapping of the bodies, but if the bodies prior to the packing should be coated with some coating material from a liquid state thereof, then the bodies should be hard frozen prior to such coating being effected, e.g. by dipping of the bodies in a bath of the coating material, as this material will be `warm` relative to the ice material. Particularly where it is required for this reason to hard freeze the bodies prior to a possible packaging or wrapping and thus prior to their transfer to a freezing store the basically simple extrusion process will be less simple, because normally use should be made of two different freezing tunnel units and an intermediate cutting station.
SUMMARY OF THE INVENTION
The aim underlying the present invention essentially resides in providing a method and apparatus which simplifies the production of extruded edible ice products, with advantage being taken of the special character of the ice material in a hard frozen condition.
According to the present invention, the ice sausage or string, while being in a medium frozen condition, is subjected to a pressure shaping for forming successive breaking curbs by a simple pressing in of a curb forming tool into a top side of the sausage or string, whereafter the still coherent sausage is conveyed further through a hard freezing zone. At the exit of the hard freezing zone, the single ice bodies are broken off from the sausage or string and are entirely frozen or stiff. By a completely uncritical breaking influence, the sausage or string will break just at a previously shaped curb recess and, no precautions are necessary for avoiding a rejoining between the ends of the previously coherent body since such rejoining will be excluded due to the fully frozen condition of the material.
The adding of a breaking curb can be effected in a very simple manner inside a continuous freezing tunnel, in which the conveyor belt may pass in one stretch, inasfar as the curb can be shaped by a simple pressing down of a tool, which shall only have to intrude noticeably into the top side of the ice sausage, but not cause any severing of the sausage all the way down to the top side of the conveyor belt, this otherwise being a major problem. Thus, for the entire process it is sufficient to use a single tunnel and a single, continuous conveyor belt, which amounts to a considerable simplification of the conventional technique.
The invention is, exemplified on the accompanying drawing, which shows, inter alia, that the breaking off of the ice bodies may be affected in an extremely simple manner in that the front end of the hard frozen ice sausage at an exit area from a supporting anvil meets with an overlying roller serving to force the projecting front end of
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O.G. Hoyer A/S
Tapolcai William E.
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