JP2006238711A - Device for making frozen confectionery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for making frozen confectionery preventing formation of a film of frozen confectionery raw material at the outlet-side tip end of a carburetor tube so as to enable stable supply of the frozen confectionery raw material. <P>SOLUTION: The device for making frozen confectionery comprises a raw material tank storing the frozen confectionery raw material, a freezer cylinder communicating with the raw material tank and cooling the frozen confectionery raw material supplied together with air via cooling medium to form the material into frozen confectionery, a beater beating the frozen confectionery raw material in the freezer cylinder, and a freezing cycle supplying the cooling medium to the freezer cylinder; wherein the raw material tank and the freezer cylinder communicate with each other via the carburetor tube 9. The outlet-side tip end 9a of the carburetor tube 9 is formed into an open veranda shape varying while having a surface intersecting with a horizontal direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a frozen dessert manufacturing apparatus for manufacturing frozen desserts such as soft creams and shakes.

A frozen dessert manufacturing apparatus that manufactures frozen desserts such as soft cream and shake supplies liquid frozen confectionery raw material called a mix from a raw material tank into the freezer cylinder, and cools the liquid raw material while stirring together with air. As a flow path for supplying the frozen confectionery raw material from the raw material tank into the freezer cylinder, a pipe material called a carburetor tube that connects the raw material tank and the freezer cylinder is provided. The carburetor tube is opened to the atmosphere at the upper end portion higher than the maximum liquid level in the raw material tank, and the frozen dessert material in the raw material tank that has flowed into the tube from the introduction hole drilled in the middle is the outlet end on the lower end portion. It flows out from the freezer cylinder. At this time, since air can be circulated between the freezer cylinder and the upper end of the carburetor tube opened to the atmosphere, the air in the freezer cylinder is exhausted as the frozen confectionery material is filled, or Air can be introduced into the freezer cylinder along with the material. The filling of the frozen dessert material and the introduction of air are completed when the outlet end of the carburetor tube is closed by the liquid surface.
In addition, as shown in FIG. 6, the conventional carburetor tube is installed such that the outlet-side tip 91 of the carburetor tube 90 is cut at right angles to the tube axis and is parallel to the liquid level of the frozen confectionery raw material 24.

Moreover, as a conventional structure of the carburetor tube described above, a double tube structure in which the inner tube is inserted into the outer tube is formed, and a sealing material is formed on the outer surface of the inner tube in order to closely contact the inner surface of the outer tube and the outer surface of the inner tube. There is something. In such a double tube structure, when the inner tube is inserted into the outer tube, the outer surface of the inner tube and the inner surface of the outer tube are in intimate contact at the tip of the outer tube, and the tip of the inner tube extends to the lower part of the outer tube. Since it is difficult to insert, it has been proposed to solve this problem by gradually expanding the inner surface of the outer tube upward. (For example, see Patent Document 1)
JP 2001-245596 A

  By the way, on the outlet side of the carburetor tube 90 described above, the conventional shape of the outlet-side tip 91 is cut in a horizontal direction perpendicular to the axial direction of the pipe material, and is a cut-away cross-sectional shape parallel to the liquid surface of the frozen dessert raw material 24. Therefore, the gas-liquid interface is not formed in the opening of the outlet side tip 91, that is, the air in the freezer cylinder is formed by the film 24a (see FIG. 6) of the frozen confectionery raw material 24 formed by surface tension to close the outlet opening. May not be exhausted, and the frozen confectionery material 24 may not flow from the material tank to the freezer cylinder.

Such a problem is caused by the relatively large capacity of the conventional model that sequentially takes out and sells frozen confections that have been manufactured in advance, so that the inner diameter of the carburetor tube 90 is relatively large. Does not wet the entire inner surface of the tube substantially evenly.
However, for example, in a small-capacity model, the inner diameter of the carburetor tube 90 supplied by feeding an appropriate amount of the frozen confectionery material 24 from the raw material tank to the freezer cylinder is about 10 mm, which is thinner than the conventional model in consideration of downsizing of the entire apparatus. When the frozen dessert material 24 is poured into the carburetor tube 90 having a small inner diameter in this way, the inner surface of the tube is wetted over substantially the entire circumference, so that the film 24a can be easily formed on the outlet-side tip 91. Furthermore, since the frozen confectionery raw material has been diversified in recent years, the formation of the film 24a becomes even more remarkable when the frozen confectionery raw material 24 having a high viscosity is handled.

When such film formation occurs, the necessary amount of the frozen confectionery raw material 24 is not supplied into the carburetor tube freezer cylinder, so that the cooling capacity becomes excessive due to the shortage of the frozen confectionery raw material, and the frozen confection freezes to frequently activate the protection function. There is a fear. Accordingly, it is desired to develop a frozen confectionery manufacturing apparatus that prevents the formation of a film of the frozen confectionery raw material 24 at the outlet end 91 of the carburetor tube and that can stably supply an appropriate amount of the frozen confectionery raw material from the raw material tank to the freezer barrel. .
The present invention has been made in view of the above circumstances, and its object is to prevent formation of a film of frozen confectionery material at the outlet side end (exit opening) of the carburetor tube, An object of the present invention is to provide a frozen confectionery manufacturing apparatus that enables stable supply of food.

In order to solve the above problems, the present invention employs the following means.
The frozen confection manufacturing apparatus according to the present invention includes a raw material tank in which a frozen confectionery raw material is stored, a freezer cylinder that is communicated with the raw material tank and supplied together with air and is cooled by a refrigerant to form a frozen confectionery, and the freezer cylinder In the frozen confectionery manufacturing apparatus comprising a stirring means for stirring the frozen confectionery raw material, and a refrigeration cycle for supplying a refrigerant to the freezer cylinder, wherein the raw material tank and the freezer cylinder are communicated by a carburetor tube, The tip of the carburetor tube on the outlet side is formed into a wet edge shape that changes with a surface intersecting the horizontal direction.

According to such a frozen dessert manufacturing apparatus, since the tip on the outlet side of the carburetor tube is formed into a changing wet edge shape with a surface intersecting the horizontal direction, the balance of the surface tension at the tip on the outlet side of the carburetor tube is balanced. Since it becomes non-uniform | heterogenous, it becomes difficult to form a film | membrane in a front-end | tip opening part.
Further, in the above-described frozen dessert manufacturing apparatus, it is preferable to chamfer the tip end surface of the wet edge shape at different angles in the circumferential direction, thereby forming a film with a more uneven surface tension balance. Can be difficult.

According to the above-described frozen dessert manufacturing apparatus of the present invention, the outlet end of the carburetor tube has a non-uniform balance of surface tension at the outlet end (exit opening) of the carburetor tube, making it difficult to form a film. Even if it is a frozen confectionery manufacturing device that employs a thin carburetor tube or a frozen confectionery manufacturing device that uses frozen confectionery ingredients with high viscosity, the outlet opening is blocked by a film of frozen confectionery ingredients formed by surface tension Can be prevented. Therefore, it is possible to stably supply an appropriate amount of frozen confectionery raw material from the raw material tank to the freezer barrel, and to provide a frozen confectionery manufacturing apparatus that prevents the frozen confection from icing due to a lack of frozen confectionery raw material and preventing frequent protection functions. Effects can be obtained.
In particular, the present invention provides a frozen dessert manufacturing apparatus that makes it difficult to form a film due to surface tension if chamfering is performed on the tip surface of the wet edge shape at different angles in the circumferential direction to make the balance of surface tension even more uneven. be able to.

An embodiment of a frozen dessert manufacturing apparatus according to the present invention will be described in detail with reference to the drawings.
FIG. 2 is a diagram showing a raw material tank / freezer body and a refrigerant piping system (refrigeration cycle) of the frozen confectionery manufacturing apparatus. In FIG. 2, reference numeral 1 in the drawing is a freezer cylinder that cools the frozen confectionery raw material 24 while stirring to produce the frozen confectionery 25, and reference numeral 8 stores the frozen confectionery raw material 24 and also stores the frozen confectionery raw material 24 in the freezer cylinder 1. It is a raw material tank to be supplied. The raw material tank 8 is provided above the freezer cylinder 1 so that the frozen confectionery raw material 24 can be supplied to the freezer cylinder 1 via the carburetor tube 9.

A heat transfer tube 21 is wound around the raw material tank 8, and a jacket 3 is provided around the freezer cylinder 1. A stirrer 2 is disposed inside the freezer cylinder 1, and the agitator 2 is connected to an electric motor 7 installed outside the freezer cylinder 1 via a reduction mechanism (pulley etc.) and a rotating shaft 4 (not shown). The driving force is transmitted.
The freezer body 1 is provided with a freezer lid 23 that closes one end opening, and the freezer lid 23 is provided with a lever 11 for opening and closing operation. The freezer lid 23 is provided with a through hole 31 that is closed and opened by a plunger 14 that is linked to the lever 11. Reference numeral 13 in the figure denotes a take-off switch that detects the open / close state of the plunger 14 in conjunction with the operation of the lever 11.

In the cooling operation, in the process in which the refrigerant flows into the refrigeration cycle by the compressor 15 that compresses and sends the gas refrigerant, the refrigerant evaporates in the heat transfer tubes 21 and the jacket 3, and the latent heat of evaporation causes the frozen confectionery raw material 24. Alternatively, the frozen dessert 25 is cooled.
The refrigerant flow path constitutes the same refrigeration cycle as in the prior art, the refrigerant pipe 34 for returning the refrigerant from the heat transfer pipe 21 and the jacket 3 to the compressor 15, and the refrigerant for sending the refrigerant from the compressor 15 to the heat transfer pipe 21 and the jacket 3. A tube 35. The refrigerant pipe 34 and the refrigerant pipe 35 are connected to the compressor 15 via the four-way valve 16. The four-way valve 16 and the compressor 15 are connected by a suction pipe 40 and a discharge pipe 41. The refrigerant pipe 35 is provided with a condenser 17 for cooling the high-temperature and high-pressure gas refrigerant sent from the compressor 15. Further, the downstream side of the refrigerant pipe 35 is branched into refrigerant pipes 35a and 35b on the heat transfer pipe 21 side and the jacket 3 side, and an expansion valve (expansion means) that decompresses and expands the high-temperature and high-pressure liquid refrigerant discharged from the condenser 17, respectively. ) 20 and 22 are interposed.
Note that the frozen dessert manufacturing apparatus provided with the take-out switch 13 and the like described above is subjected to various operation controls by a control device (not shown).

Here, the carburetor tube 9 which is a characteristic component of the present invention will be described in detail with reference to FIG.
The carburetor tube 9 is a member such as a stainless steel pipe that supplies the frozen dessert raw material 24 by connecting the raw material tank 8 and the freezer cylinder 1. The carburetor tube 9 is formed in a wet edge shape in which an outlet-side tip 9a that opens inside the freezer barrel 1 has a surface that intersects the horizontal direction. That is, at the illustrated outlet-side tip 9a, the lower end portion of the carburetor tube 9 is cut obliquely, and then the acute angle portion of the lower end portion indicated by an imaginary line in the figure is horizontally cut and removed, whereby the frozen dessert raw material 24 The shape is a combination of inclined surfaces S intersecting a horizontal horizontal plane H parallel to the liquid surface. In other words, the outlet-side tip 9a has an inclined surface S that is at least partially different from the horizontal plane H and has a discontinuous portion in which the shape of the wet mouth changes rapidly from the horizontal plane H. The shape may be used.
In this case, the inclined surface S may be either a flat surface or a curved surface, and the horizontal surface H shown in the drawing is not limited to the horizontal parallel to the liquid surface of the frozen confectionery raw material 24, and the inclined surface S and the inclination angle are not limited. Different planes or curved surfaces may be used. That is, the opening surface formed at the outlet side tip of the carburetor tube 9 is configured to be formed from a plurality of surfaces, and the balance of the surface tension of the film formed by the liquid frozen confectionery raw material 24 in this opening is easy. By collapsing, gas-liquid exchange through the carburetor tube 9 is promoted, and supply failure is prevented from occurring.

  More specifically, the outlet-side tip 9a has an increased surface area by extending the length of the wet edge, and the surface tension becomes unbalanced at the portion where the shape of the wet edge changes suddenly. Therefore, the inner diameter of the carburetor tube 9 is thin. Even when the frozen confectionery raw material 24 having a high viscosity is used, it becomes difficult to form a film of the frozen confectionery raw material 24 due to surface tension. For this reason, it is possible to prevent the filling and replenishment of the frozen confectionery material 24 from being hindered by the formation of a film. The protection function does not operate frequently.

In addition, the outlet side tip 9a ′ of the first modification shown in FIG. 1B has a chamfering process 9b having a different angle in the circumferential direction on the tip surface of the wet edge shape. That is, a chamfering process 9b is performed on the front end surface of the outlet side front end 9a 'so that the diameter of the chamfering process 9b is increased toward the inner lower portion, and angles θ1 and θ2 with respect to the vertical line of the chamfering process 9b are different in the circumferential direction.
By adopting such a wet edge shape at the outlet end 9a ', the length of the wet edge is further extended to increase the surface area, and the surface tension unbalance is further increased. It becomes difficult to do.

Subsequently, another embodiment of the above-described wet edge shape of the outlet side tip 9a will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part similar to embodiment mentioned above, and the detailed description is abbreviate | omitted.
In the outlet side distal end 9a of the second embodiment shown in FIG. 3, the lower end portion of the carburetor tube 9 is cut obliquely, and is formed into a changing wet edge shape with an inclined surface S intersecting the horizontal direction. Yes. That is, since the entire surface of the outlet-side tip 9a has an inclined surface S different from the horizontal plane, the surface tension becomes unbalanced in the direction of gravity, making it difficult to form a film of the frozen dessert raw material 24. In this embodiment as well, chamfering with different angles in the circumferential direction may be performed.

  In the outlet-side tip 9a of the third embodiment shown in FIG. 4, the carburetor tube 9 is cut into a semicircular shape at the lower end to form a recess 9c, and the curved surface of the recess 9c intersects the horizontal direction. The inclined surface S is formed to change the wet edge shape. The concave portion 9c may be installed at least one place in the circumferential direction, and the shape thereof is not limited to a semicircular shape such as a triangle or a rectangle. Even in such a configuration, an inclined surface S different from the horizontal surface H is formed at the outlet-side tip 9a, and the shape of the wetting mouth is a discontinuous wetting edge shape. It becomes difficult to form a film. In this embodiment as well, chamfering with different angles in the circumferential direction may be performed.

  In the outlet-side tip 9a of the fourth embodiment shown in FIG. 5, the bottom surface of the carburetor tube 9 is cut out to form a step in the horizontal plane H, and the step surface 9d is an inclined surface S that intersects the horizontal direction. The wet edge shape is changed by forming. The stepped surface 9d may be formed in one or more steps, and the inclination angle includes vertical. Even in such a configuration, the exit tip 9a is formed with a portion that changes abruptly from the horizontal plane H to the inclined plane S, so that the shape of the wetting mouth becomes a discontinuous wetting edge shape and the surface tension becomes unbalanced. This makes it difficult to form a film of the frozen confectionery material 24. In this embodiment as well, chamfering with different angles in the circumferential direction may be performed.

As described above, according to the frozen dessert manufacturing apparatus of the present invention, the outlet-side tip 9a of the carburetor tube 9 has a wet edge shape that makes it difficult to form a film of the frozen dessert raw material 24 by making the balance of the surface tension uneven. Therefore, it is possible to prevent the outlet opening from being blocked by the membrane even when the carburetor tube 9 having a small inner diameter is employed, or when the frozen confectionery material 25 is manufactured using the frozen confectionery raw material 24 having a high viscosity. Can do. Accordingly, it becomes possible to stably supply an appropriate amount of the frozen confectionery raw material 24 from the raw material tank 8 to the freezer cylinder 1, and it is possible to prevent the frozen confectionery 25 from icing due to the lack of the frozen confectionery raw material 24 and to prevent the protective function from operating frequently. High and stable frozen confectionery production becomes possible.
In addition, this invention is not limited to embodiment mentioned above, For example, about the shape of the exit side front-end | tip 9a, it is not limited to illustrated embodiment and modification, In the range which does not deviate from the summary of this invention. Can be changed as appropriate.

It is a figure which shows the principal part of a carburetor tube as one Embodiment of the frozen dessert manufacturing apparatus which concerns on this invention, (a) is a side view which shows the shape of an exit side front end, (b) is a cross section of the 1st modification of (a). FIG. It is sectional drawing and the piping system figure which show the whole structure of the frozen confectionery manufacturing apparatus which concerns on this invention. It is a side view which shows the shape of an exit side front end as 2nd Embodiment which concerns on a carburetor tube. It is a side view which shows the shape of an exit side front end as 3rd Embodiment which concerns on a carburetor tube. It is a side view which shows the shape of an exit side front end as 4th Embodiment which concerns on a carburetor tube. It is sectional drawing which shows the shape of the exit side front-end | tip about the conventional carburetor tube.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Freezer cylinder 2 Stirrer 8 Raw material tank 9 Carbator tube 9a Outlet side front end 9b Chamfering 9c Recess 9d Stepped surface 15 Compressor 24 Frozen confectionery raw material 25 Frozen confectionery

Claims (2)

A raw material tank in which the frozen confectionery material is stored, a freezer cylinder that is communicated with the raw material tank and supplied with air, is cooled by a refrigerant to be frozen confectionery, and a stirring means for stirring the frozen confectionery raw material in the freezer cylinder And a refrigeration cycle for supplying a refrigerant to the freezer cylinder, and in the frozen confectionery manufacturing apparatus in which the carburetor tube communicates between the raw material tank and the freezer cylinder,
A frozen dessert manufacturing apparatus, wherein the outlet end of the carburetor tube is formed into a wet edge shape having a surface intersecting the horizontal direction.   The frozen dessert manufacturing apparatus according to claim 1, wherein chamfering processing is performed on the distal end surface of the wet edge shape at different angles in the circumferential direction.

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