MXPA97002615A - Procedure and device to manufacture extru frozen concentrate - Google Patents

Abstract

The present invention relates to an apparatus for the coextrusion of frozen compositions for the preparation of a confectionery article comprising: a plurality of successively aligned nozzle tubes wherein each tube extends from a first end opening to a second opening of end and comprises a solid inner wall surface circumscribing a hollow and extending between the ends to extrude a material to obtain an extruded product having an external surface of the shape of the surface of the inner wall, wherein the section with reference to an end-to-end axis, the shape of the section of the interior surface wall comprises an arc portion and a tangent portion wherein the arc portion extends from the tangent portion and comprises, with reference to the tangent portion , two semi-circular portions of different diameter connected by the tangent portion, where each successive tube a section of an interior hollow larger than the section of a hollow of the preceding tube and wherein each preceding tube is mounted within the next tube for feeding material through the plurality of successively aligned tubes, and an output of the product comprising an inner cylindrical wall around a recess which is larger than the recesses of the plurality of nozzle tubes and which is positioned to receive the extruded material of the plurality of tubing

Description

PROCEDURE AND DEVICE TO MANUFACTURE EXTRUDED FROZEN CONTAINER DESCRIPTION OF THE INVENTION The invention relates to a method and device for manufacturing frozen and extruded confectionery with contrasting colors and flavors by defining a spiral, which is intended to fill family portions or "bulky" portions or containers or in addition for the manufacture of frozen confections. Devices are known, for example, from EP-A-0293022, for filling portions of frozen confectionery containing a sauce or syrup with which a contrasting design is produced in double spirals or double concentric circles by means of a hollow rotation arrow axially positioned in a tube and comprising side openings, while the tube comprises a central baffle element near the outlet supply tube. The hollow arrow produces a pattern consisting of concentric circles of syrup, which the deflector divides into two subpatroñes. According to USA-A-3227103, for example, two pasta doughs are extruded, each through supply tubes that define a spiral inscribed in a circular contour, in order to manufacture "rolled" type cakes. Said device does not allow two frozen compositions to be co-extruded in the form of a spiral inscribed in a circle with a correct definition of the contour of the spiral pattern, since it creates preferential flows which deform this pattern due to the high friction in the supply pipe. in the form of a spiral and in the center of the pattern in relation to the periphery. The invention provides a simple solution to the problem presented by means of a device that has no moving parts. It relates to a process for manufacturing frozen confectionery by coextruding frozen compositions having different flavors and colors to form a cylindrical extrusion having in its core a spiral pattern, characterized in that the frozen compositions are extruded vertically and alternately by successive nozzles fixed inside them and having a progressive section, each nozzle is formed of two medium cylindrical shells joined by a central plane of the extrusion, and the section of the nozzles consists of two tangential semicircles joined by their diameters in the central plane, with except that the last exit nozzle has a circular section.

It is understood that a frozen composition represents, within the context of the invention, a properly so-called ice cream, which is aerated to a certain variable degree, or an ice water ice or extrudable, which is not aerated or is only aerated to a small degree. The extrusion is preferably cut into portions that are left on the extrusion device so that they are then introduced into containers, for example, boxes or containers are presented successively under the device, then a portion that constitutes the exact volume to fill the container in. question. The containers are supported by a chain which advances stepwise, so that a container is fixed during the filling period. As a variant, it can be arranged that the extrusion device be fixed, for example to a movable pulley, so that it accompanies a container during filling, and then once the container is filled, it quickly returns to its initial position. As a variant, the extrusion can be cut into slices, which are deposited on cold plates that travel continuously under the extrusion device and where it is possible to insert a stick laterally, in order to produce ice confections. The frozen compositions preferably have contrasting flavors and colors and have similar rheological properties, which can be obtained by adjusting the flow, composition, travel, exit temperature and extrusion pressure. In principle, these physical parameters are very similar for the various compositions. The invention also relates to a device for extruding a frozen confectionery by coextruding frozen compositions having different flavors and colors, to form a cylindrical extrusion having in its core a spiral pattern, characterized in that it comprises successive nozzles fitted within them and having a progressive section, each nozzle is formed of two half-cylindrical shells joined by a central plane of the extrusion and the section of the nozzles consists of two tangential semicircles joined by their diameters in the central plane with the exception of the last outlet nozzle whose section is circular. The invention also relates to a frozen article of confectionery extruded in a generally cylindrical shape, characterized in that it consists of at least two frozen compositions with contrasting flavors and colors, and these define a pattern in its cross section representing a spiral inscribed in a circle . According to one embodiment, the article is in the form of a generally cylindrical container with a small angle of incidence, containing a cylindrical extrusion of frozen compositions in the section that is inscribed in a spiral. According to another embodiment, the article is in the form of an ice candy comprising a cylindrical slice of frozen compositions cut from the extrusion left by the extruder, in the section of which a spiral is inscribed and where a stick is placed . The invention will be described in detail with the help of the accompanying drawings given by way of illustration and in which: Figure 1 is a diagrammatic view of the station for filling containers, Figure 2 is a diagrammatic view of a variant of the station for making sweets, Figure 3 is a longitudinal section of the device along a central plane, Figures 4, 5, 6 and 7 are side sections, along AA, BB, CC and DD respectively of Figure 3 and Figure 8 is an elevation view of an ice candy. In Figure 1, an ice cream having a first flavor, for example vanilla, arrives vertically through the pipe 1, at a flow rate regulated by the valve 2, through a central supply pipe 3. An ice cream with a second flavor, for example chocolate, arrives laterally and from each side through the pipes 4 and 5 at a flow rate regulated by the valves 6 and 7, towards a space surrounding the supply pipe 3 and the assembly of two coextruded streams exits through the supply pipe 8. In the same way, a vanilla ice cream arrives laterally through the pipes 9 and 10, at a flow rate regulated by the valves 11 and 12, towards a space surrounding the supply tube 8, and the assembly of three co-extruded streams exiting through the supply tube 13. In the same way, a chocolate ice cream arrives laterally through the pipes 14 and 15, with a flow rate regulated by the valves 16 and 17, hac a space surrounding the supply pipe 13 and the assembly of four coextruded streams exiting through the supply pipe 18. In the same way, a vanilla ice cream arrives laterally through the pipes 19 and 20, with a speed of flow regulated by the valves 21 and 22, towards a space surrounding the supply pipe 18, and the assembly of five co-extruded streams that exits through the outlet supply pipe 23 and constitutes the final extrusion. The valves 2, 6, 7, 11, 12, 16, 17, 21 and 22 can be controlled independently of one another or by means of an individual control system. The final extrusion is cut into portions with a volume adapted to the contents of a container, by means of the cutting tool 24, and then deposited in the container 25, which is stationary throughout the filling operation and which, once filled , it is taken by the conveyor belt 26, which passes in a staggered manner in the direction of the arrow fl. In Figure 2, the extrusion is extruded in the same manner as in Figure 1, only with the differences that the cutting tool 24 operates with a higher frequency and cuts sections such as 27., wherein the stick applicator 28 inserts a stick 29 as it proceeds and the strip 26 takes the candies along a continuous path in the direction of the arrow f1. As is evident from Figure 3, the supply tubes 3, 8, 13 and 18 of the successive nozzles are deflected in the central plane of the extruder with respect to the extrusion axis, and therefore the extrusion axis, while the final supply tube 23 is on the axis of the extrusion. In Figures 4 to 7, it will be seen that the supply tubes 3, 8, 13 and 18, which also represent the section of the nozzles, each can be divided into two tangential semicircles joined by their diameters in the central plane. On the other hand, the outlet supply tube 23 is circular. In this way it will be observed that the nozzles have sections that define, as if they were, the negative part of the spiral pattern. This configuration of the nozzles allows the successive coextrusion of the extrusions consisting only of joined half-cylinders, therefore with simple shapes, without the preferential flow, which could come from the cut that results from the friction of the mass pushed against the walls. Preferably, the section of a supply tube such as 3, is substantially equal to the difference between the areas 8 and 3, the supply tube 8 is substantially equal to the difference between the areas 13 and 8, the supply tube 13 to the difference between areas 18 and 13, and the supply tube 18 to the difference between the areas 23 and 18, which means that there is no deformation of the successive coextruded extrusions. In Figure 7, a section 30 of the coextruded extrusion, provided with a stick 29, constitutes an ice confection having a decorative appearance with a spiral 31 of chocolate ice cream inscribed in a mass 32 of vanilla ice cream. In the above detailed description, two-component articles based on two ice creams have been described.

It is possible to manufacture, without departing from the scope of the invention, articles composed of several ice creams with different colors and flavors, for example, with up to nine different frozen compositions, each defining a spiral sector, up to where the spiral pattern could appear. You can also juxtapose elements composed of different sorbets or in addition to ice creams and sorbets, with the condition that their rheological properties are similar. The frozen compositions may contain small inclusions, for example from chocolate wafers, or they may contain sauces or veined syrups. In addition, an ice-based ice confection or extrudable water sorbet may be covered with a water-based coating in order to produce a glossy finish.

Claims (8)

1. A process for manufacturing frozen confectionery by coextruding frozen compositions with different flavors and colors to form a cylindrical extrusion having a spiral pattern in its core, characterized in that the frozen compositions are extruded vertically and alternately by successive nozzles fixed inside each and having a progressive section, each nozzle is formed of two medium cylindrical shells joined by a central plane of the extrusion and the section of the nozzles consists of two tangential semicircles joined by their diameters in the central plane, with the exception of the last nozzle of exit whose section is circular.

2. A method according to claim 1, further characterized in that the frozen compositions are frozen, properly so-called, aerated to a varying degree or extrudable sorbets or water ice, which are not aerated or aerated only to a certain degree.

3. A method according to claim 1 or 2, further characterized in that the extrusion is cut into portions leaving the extrusion device to be then introduced into containers, which are presented successively under the device, then a portion constituting the volume exact to fill the container in question.

4. A method according to claim 1 or 2, further characterized in that the extrusion is cut into slices which are placed on cold plates that pass continuously under the extrusion device and into which a stick is inserted laterally in order to produce ice candy.

5. A device for extruding frozen confectionery by coextruding frozen compositions with different flavors and colors, to form a cylindrical extrusion having in its core a spiral pattern, characterized in that it comprises successive fixed nozzles within each and having a progressive section, each nozzle consists of two semicylindrical half shells joined by a central plane of the extrusion, and the section of the nozzles consists of two tangential semicircles joined by their diameters in the central plane, with the exception of the last outlet nozzle whose section is circular.

6. An extruded frozen confectionery article with a generally cylindrical shape, characterized in that it consists of at least two frozen compositions with contrasting flavors and colors and which define in cross-section, a pattern representing a spiral inscribed in a circle.

7. An article according to claim 6, further characterized in that it is in the form of a generally cylindrical container with a small angle of incidence, containing a cylindrical extrusion of frozen compositions in the section of which a spiral is inscribed.

8. The article in accordance with the claim 6, further characterized in that it is in the form of an ice candy comprising a cylindrical slice cut from an extrusion of frozen compositions, in the section of which it inscribes a spiral and into which a stick is inserted.