JPH0787898A - Ice-cream freezer - Google Patents

Abstract

PURPOSE:To prevent the discharge of ice cream having inferior quality in the dispensation of ice cream by forming a means for starting the agitation in the dispensation of ice cream and starting the motion of a stirrer before the operation to open a dispensing port opened at an end of a freezing cylinder. CONSTITUTION:This ice cream freezer is provided with a stirrer to force an ice cream in an ice cream cylinder 3 toward a dispensing port while stirring the ice cream, an operation lever 3b to open the dispensing port in the case of dispensing the ice cream and a starting press switch 3g to start the motion of the stirrer before the operation of the operation lever. The softened ice cream in the channel between the freezing cylinder and the dispensing port is replaced with a semi-frozen ice cream in the freezing cylinder and the semi- frozen ice cream is dispensed through the dispensing port.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frozen dessert producing apparatus for producing frozen desserts such as soft ice cream and shakes.

[0002]

2. Description of the Related Art An example of a frozen dessert manufacturing apparatus as described above will be described with reference to, for example, FIGS. 1 and 2 which are explanatory views of the present invention. Such an apparatus, as shown in FIG. A refrigerating cylinder 3 having a product take-out section 3a is provided in the section. A coiled evaporator connected to the compressor 5 and the condenser 5c of the refrigerator by a refrigerant pipe (not shown) is wound around the refrigerator cylinder 3, and the refrigerator is driven, that is, the compressor 5 is driven. By driving the blower 5b attached to the condenser 5c or the condenser 5c, the liquid raw material in the freezing cylinder 3 is cooled and manufactured as a predetermined semi-frozen frozen dessert.

The product take-out section 3a is provided with an operation lever 3b for taking out the product and an opening / closing switch 3c which is turned on when the operation lever 3b is operated. As shown in FIG. 2, the product take-out section 3a is provided with a frozen dessert product take-out port 11 communicating with the freezing cylinder 3 through a passage 12, and the take-out port 11 is used for operating the operation lever 3b. It is designed to be opened and closed by a plunger 13 which moves up and down in conjunction with each other.

On the other hand, in the freezing cylinder 3, a spiral dasher 3e as an agitator is arranged, and the freezing cylinder 3
When the temperature of the frozen dessert therein becomes higher than the set temperature, the operation of the refrigerator and the rotational driving of the dasher 3e are simultaneously started, whereby the frozen dessert in the freezing cylinder 3 is held at a predetermined temperature state.

Further, conventionally, when the operation lever 3b is operated and the outlet 11 is opened, an ON signal from the open / close switch 3c generated at the same time causes
Driving of the dasher 3e and the refrigerator is started. When the spiral dasher 3e is driven to rotate, it also acts to push the frozen dessert in the freezing cylinder 3 toward the outlet 11 while stirring it, whereby the freezing cylinder 3 passes through the passage 12. The frozen dessert inside is pushed out to the take-out port 11, and the frozen dessert is taken out to the outside.

Incidentally, in accordance with the reduction of the amount of frozen dessert in the freezing cylinder 3 caused by taking out the frozen dessert, the liquid raw material is supplied from the rear end side of the freezing cylinder 3, which is taken out during the period of taking out the frozen dessert and thereafter. Dasher 3e continued
And it is cooled by the operation of the refrigerator and finished as a semi-frozen frozen dessert.

[0007]

However, in the above-mentioned conventional frozen dessert manufacturing apparatus, as shown in FIG. 10, for example, too soft a frozen dessert is likely to be first taken out and supplied to a corn cup or the like. As a result, there arises a problem that the sufficient quality cannot be maintained. this is,
Passage 1 from the front end of the freezing cylinder 3 to the outlet 11.
The frozen dessert staying in No. 2 is likely to rise in temperature due to the influence of the outside air temperature. Therefore, when the frozen dessert is not taken out for a long time, the frozen dessert in the passage 12 becomes soft due to the temperature rise. This is because some of them melt and become liquid, and this is supplied first when the frozen dessert is taken out.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a frozen dessert manufacturing apparatus capable of preventing the production of frozen desserts of inferior quality when the frozen dessert is taken out. Especially.

[0009]

In order to solve the above problems, a frozen dessert producing apparatus according to claim 1 is a refrigerator for producing frozen desserts by cooling the raw material supplied into a freezing cylinder. While stirring the frozen dessert in the freezing cylinder, an agitator provided at one end of the freezing cylinder to give a pushing force to the frozen dessert, and a take-out opening / closing means operated when taking out the frozen dessert in the freezing cylinder. In the frozen dessert manufacturing apparatus including the above, the frozen dessert take-out stirring start means for starting the operation of the agitator before the operation of the take-out opening / closing means for opening the take-out opening is provided.

The frozen dessert producing apparatus according to claim 2 is the apparatus according to claim 1.
In the device described above, the operation of the refrigerator is started at the same time as the operation of the agitator is started by the agitating means for taking out frozen dessert.

[0011]

In the frozen dessert manufacturing apparatus according to the first aspect, when the opening / closing means for opening the opening is operated to open the opening, the agitator is driven by the stirring start means at the time of taking out the frozen dessert while the opening before the opening is closed. Is started. As a result, the pressing force in the direction toward the outlet side acts on the frozen dessert in the freezing cylinder. Therefore, when there is a soft frozen dessert in the passage from the freezing cylinder to the outlet, the frozen dessert is The semi-frozen frozen dessert in the freezing cylinder is pushed into, and the soft frozen dessert in the passage flows backward into the freezing cylinder, and the semi-frozen frozen dessert in the passage is also replaced. As a result, when the frozen dessert is taken out by opening the outlet after that, the frozen dessert in a predetermined semi-frozen state is supplied from the beginning, and the state in which the first soft frozen dessert is supplied, which has conventionally occurred, is eliminated. As a result, frozen desserts with improved quality are stably supplied.

In the frozen dessert making apparatus according to claim 2,
Before the outlet is opened, the operation of the refrigerator is started together with the stirring machine. In other words, even if the soft frozen dessert flows back from the outlet into the freezing cylinder as described above, the cooling operation is started at this point, so that the entire frozen dessert immediately including the frozen dessert flowing back into the freezing cylinder immediately reaches a predetermined level. It becomes semi-frozen. As a result, the frozen dessert to be taken out thereafter contains almost no soft portion in its entirety, and it becomes possible to take out the frozen dessert with improved quality.

[0013]

【Example】

[Embodiment 1] One embodiment of the present invention is shown in FIGS.
The explanation is based on the following.

As shown in FIG. 1, the frozen dessert manufacturing apparatus of the present embodiment is provided with a mix tank 2 for storing raw materials for so-called frozen desserts such as soft ice cream and shakes in the upper part of the case 1. The mix tank 2 is arranged so that the charging port 2a on the upper surface side for charging the raw material is substantially aligned with the height position of the upper surface of the case 1. Input port 2 above
A is covered from above with a tank cover 2b.

On the other hand, below the mix tank 2, there is provided a freezing cylinder 3 which stirs and cools the air-containing raw material to produce a semi-frozen frozen dessert. At the front end portion (left end portion in the figure) of the freezing cylinder 3, a product taking-out portion 3a for taking out frozen dessert as a product is provided so as to project to the front surface of the case 1. This product take-out section 3a
As shown in FIG. 2, the frozen dessert outlet 11 is provided, and the passage 1 is provided between the outlet 11 and the freezing cylinder 3.
Two are provided. A plunger 13 is provided at the take-out port 11, and the plunger 13 is shown in FIG.
By manually operating the operation lever (extract opening / closing means) 3b shown in FIG. 3, the operation lever 3 is moved up and down, whereby the extract opening 11 can be opened and closed.

Further, an opening / closing switch 3c such as a reed switch or a micro switch for outputting a signal according to the product take-out operation by the operation lever 3b is arranged at a position close to the operation lever 3b. Further, at another position close to the operation lever 3b, a starting push switch 3g is provided as a stirring start means for picking up frozen dessert.

On the other hand, behind the freezing cylinder 3, a dasher 3 (described later) for stirring the raw material in the freezing cylinder 3 is described.
The drive shaft 3d of "e" is projected, and the motor 4 for driving the drive shaft 3d via the belt is installed in the lower rear position in the case 1. Further, a compressor 5 is disposed at the bottom of the case 1, and a blower 5b and a fin-shaped heat radiating plate 5a are provided above the rear wall surface.
Is provided with a condenser 5c. The compressor 5 and the condenser 5c, a coil-shaped evaporator (not shown) wound around each of the outer circumferences of the mix tank 2 and the freezing cylinder 3, and the compressor 5, the condenser 5c, and the evaporator are mutually annular. The refrigerant pipe connected to the above constitutes a refrigerator for precooling the raw material in the mix tank 2 and cooling the raw material in the freezing cylinder 3.

A raw material which is a mixed solution of milk, egg yolk, sugar and the like is supplied from the mix tank 2 into the freezing cylinder 3 on the rear end side. In this freezing cylinder 3,
As shown in FIG. 2, a spiral dasher 3e is arranged to push out the raw material while stirring the raw material.

The dasher 3e and the refrigerator are driven intermittently in accordance with the temperature of the raw material and the torque applied to the dasher 3e when the liquid raw material becomes a semi-frozen frozen dessert. That is, when the temperature of the raw material becomes equal to or lower than the preset temperature and the torque becomes equal to or higher than the preset value, the driving is stopped, while the temperature of the raw material becomes higher than the preset temperature. When the temperature of the frozen dessert is started, the frozen dessert in the freezing cylinder 3 is kept at a predetermined temperature.

The driving of the dasher 3e and the refrigerator is also started by turning on the starting push switch 3g.

The operation of taking out frozen desserts in the frozen dessert manufacturing apparatus having the above-mentioned structure will be described below with reference to the time chart of FIG.

When attempting to take out a frozen dessert while the frozen dessert in the freezing cylinder 3 is held in a predetermined temperature state, when the frozen dessert is to be taken out, first, in the apparatus of this embodiment, the activation pressing switch 3g is turned on. Done. As a result, the operation of the compressor 5 of the refrigerator and the dasher 3e are started. As a result, the inside of the freezing cylinder 3 is agitated and cooled, and by this agitation, the frozen dessert in the passage 12 that has become soft during standby for a long time is replaced with the frozen dessert in the freezing cylinder 3.

After a few seconds, when the take-out port 11 is opened by operating the operation lever 3b, a predetermined frozen dessert is supplied from the beginning to the outside through the take-out port 11 through the passage 12, and as a result, as shown in FIG. As shown, a good quality soft ice cream is formed.

As described above, in the frozen dessert manufacturing apparatus of this embodiment, when the frozen dessert is taken out, the starter pressing switch 3g is first operated to start the driving of the dasher 3e. At the same time, the refrigerator is activated and the cooling operation in the freezing cylinder is started.

Therefore, even if the frozen dessert near the outlet 11 becomes soft or becomes liquid during standby,
The inside of the freezing cylinder 3 is agitated by the dasher 3e,
The frozen dessert near the outlet 11 is replaced with the frozen dessert in the freezing cylinder 3. Further, at this time, the cooling inside the freezing cylinder 3 is also started, so that the frozen dessert near the outlet 11
Alternatively, even if the liquid frozen dessert is taken into the freezing cylinder 3, the entire frozen dessert can be promptly cooled.

Therefore, for example, even after the frozen dessert has not been taken out for a long time, it is possible to stably supply the frozen dessert with improved quality.

When the operation lever 3b is returned to the original position and the operation of taking out the frozen dessert is completed, this is detected by the opening / closing switch 3c. During this period, a liquid raw material corresponding to the amount of the frozen dessert taken out from the freezing cylinder 3 is supplied from the upper mix tank 2 into the freezing cylinder 3 by gravity flow, and the freezing cylinder 3 is supplied together with the newly supplied raw material. The operation of the dasher 3e and the refrigerator is continued even after the opening / closing switch 3c is switched from ON to OFF until the entire inside becomes a frozen dessert.

[Embodiment 2] Another embodiment of the present invention will be described below with reference to FIGS. For convenience of explanation, members having the same functions as those shown in the drawings of the above-described embodiments are designated by the same reference numerals, and the description thereof will be omitted. The same applies to other embodiments described later.

In the frozen dessert producing apparatus of the above-mentioned embodiment, when the frozen dessert in the freezing cylinder 3 is taken out, the liquid raw material corresponding to the reduced amount is supplied from the upper mix tank 2 into the freezing cylinder 3 by gravity flow. However, the frozen dessert producing apparatus of this embodiment pressurizes the mix tank 2 with compressed air in order to stabilize the mixing ratio of air when the raw material is supplied to the freezing cylinder 3, It is configured to supply compressed air to the freezing cylinder 3 together with the raw material.

That is, as shown in FIG. 5, a sealed small tank 8 to which an air hose 10 for supplying compressed air is connected is arranged in the mix tank 2. The small tank 8 is provided at its bottom with a substantially cylindrical mounting pipe 9 extending downward. The mounting pipe 9 connects the freezing cylinder 3 and the mix tank 2 to each other.
Has been inserted into.

FIG. 6 is a block diagram showing the control circuit 13 in the frozen dessert making apparatus having the above structure. Power 39
An electromagnetic switch 31 of the motor 4 for driving the dasher 3e is connected to a power supply line extending from. A raw material supply control circuit 32 is connected to the power supply line via a connector 37a.
2, a compressor 23c as a compressed air supply source to the small tank 8, a main switch 33, and a solenoid valve switching control circuit unit 35 are provided.

The solenoid valve switching control circuit 35 is for switching the opening / closing of the air supply solenoid valve 23a and the exhaust solenoid valve 23b provided in the compressed air supply passage to the small tank 8. is there. The open / close switch 3c is connected to the solenoid valve switching control circuit 35 via a connector 37b, and the solenoid valve switching control circuit 35 is connected to the connector 3
It is connected to the main body side control unit 38 for controlling the entire frozen dessert manufacturing apparatus via 7c. In the figure, 36 is a display lamp.

Then, the solenoid valve switching control circuit section 35 described above is used.
And the connector 37c between the start push switch 3g
Are connected.

FIG. 7 is a timing chart showing the operation of taking out a frozen dessert in the frozen dessert manufacturing apparatus having the above-mentioned configuration, together with the operation at the start-up at the start of business, as shown in the figure. In the frozen dessert manufacturing process, after the main switch 33 is turned on, the air supply solenoid valve 23a is opened to pressurize the inside of the small tank 8 so that the raw material in the small tank 8 is supplied into the freezing cylinder 3. , When a predetermined amount of raw material is supplied, the indicator lamp 36
Lights up, an operation control signal is generated, and the compressor 5 and the dasher 3e are activated. As a result, the stirring and cooling of the raw material 6 in the cylinder 3 is started, and when the semi-frozen state of the predetermined temperature is reached, the driving of the compressor 5 and the dasher 3e is stopped. In this way, while the frozen dessert is finished manufacturing and is waiting for sale, an operation control signal is appropriately generated according to the temperature condition in the freezing cylinder 3 as in the first embodiment, and as a result, similar to the first embodiment. , The refrigerator and the dasher 3e are operated intermittently.

When the frozen dessert is taken out, the operation control signal is first generated by turning on the start-up pressing switch 3g, and the operation of the compressor 5 and the dasher 3e of the refrigerator is started, as in the above-mentioned embodiment. It As a result, the inside of the freezing cylinder 3 is agitated and cooled, and the agitation replaces the frozen dessert in the passage 12 with the frozen dessert in the freezing cylinder 3.

After that, the operation lever 3b of the product take-out section 3a
Is operated to open the outlet 11, the freezing cylinder 3
The frozen dessert inside is sent to the product take-out section 3a while being stirred,
Frozen dessert such as soft ice cream is supplied to the outside through the outlet 11, and high-quality soft ice cream can be taken out from the beginning. When the signal from the open / close switch 3c is switched from OFF to ON by the operation of the operation lever 3b, compressed air is supplied into the small tank 8 and the raw material corresponding to the product supply amount is frozen cylinder. 3 is supplied.

[Embodiment 3] Another embodiment of the present invention will be described below with reference to FIGS. 8 and 9.

As shown in FIG. 8, the frozen dessert manufacturing apparatus of this embodiment is provided with a photoelectric sensor 41 in the vicinity of the operation lever 3b instead of the manually operated start-up push switch 3g in each of the above embodiments. Has been done. This photoelectric sensor 41
Is provided at a position where an ON signal can be generated before the operation lever 3b is operated by detecting a hand approaching the operation lever 3b in order to operate the operation lever 3b.

In the frozen dessert maker having the above-mentioned structure, immediately before the operator tries to touch the operation lever 3b, the operation shown in FIG.
As shown in FIG. 5, the photoelectric sensor 41 is turned on, which causes an operation control signal to be generated, and the operation of the dasher 3e and, although not shown, the compressor 5 of the refrigerator is started. Therefore, at this point, Dasher 3
By stirring the inside of the freezing cylinder 3 by e, the passage 12
If there is a soft frozen dessert in it, it is replaced with a semi-frozen frozen dessert in the freezing cylinder 3. After that, the operator operates the operation lever 3b to open the take-out port 11, whereby the frozen dessert in a sufficiently cooled state from the beginning is taken out.

In each of the above-described embodiments, before the opening / closing switch 3g is turned on by the operation of the operation lever 3b, the start pressing switch 3g is turned on or the photoelectric sensor 41 is turned on. , An example in which the refrigerator is started simultaneously with the dasher 3e has been described, but in the scope of claim 1 of the present invention, the drive of only the dasher 3e is started and the inside of the passage 12 is started. It is also possible to replace the soft frozen dessert of the above with the semi-frozen frozen dessert in the freezing cylinder 3.

[0041]

As described above, according to the first aspect of the present invention.
The frozen dessert manufacturing apparatus described is a refrigerator for manufacturing frozen desserts by cooling the raw materials supplied to the freezing cylinder, and while stirring the frozen dessert in the freezing cylinder, the frozen dessert is provided at one end of the freezing cylinder. In the frozen dessert manufacturing apparatus including a stirrer for applying a pushing force in the direction of the take-out port and a take-out port opening / closing means operated when taking out the frozen dessert in the freezing cylinder, operation of the take-out port opening / closing means for opening the take-out port Before the above, a stirring start-up means at the time of taking out frozen dessert for starting the operation of the stirring machine is provided.

Thus, when the take-out opening / closing means is operated to open the take-out port, the driving of the agitator is started in advance, and the frozen dessert softened in the passage from the freezing cylinder to the take-out port is frozen. It replaces the frozen frozen dessert in the cylinder. Accordingly, when the frozen dessert is taken out after opening the outlet, the frozen dessert in a predetermined semi-frozen state is supplied from the beginning, so that the frozen dessert with improved quality can be stably taken out. Play.

According to a second aspect of the present invention, the frozen dessert producing apparatus is constructed such that the operation of the refrigerator is started at the same time as the operation of the agitator by the agitating means for extracting the frozen dessert is started.

As a result, even if the soft frozen dessert existing in the passage extending from the inside of the freezing cylinder to the outlet is returned to the inside of the freezing cylinder as described above, it is immediately brought into a predetermined semi-frozen state. Therefore, the frozen dessert to be taken out thereafter does not include a soft portion in its entirety, and it is possible to take out the frozen dessert with improved quality.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a frozen dessert manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing a main structure of a freezing cylinder in the frozen dessert manufacturing apparatus.

FIG. 3 is a timing chart for explaining a control operation when taking out a frozen dessert in the frozen dessert manufacturing apparatus.

FIG. 4 is an explanatory diagram showing a frozen dessert taken out from the frozen dessert manufacturing apparatus.

FIG. 5 is a configuration diagram showing a main configuration of a frozen dessert manufacturing apparatus according to another embodiment of the present invention.

6 is a circuit block diagram showing a main configuration of a control device in the frozen dessert manufacturing apparatus shown in FIG.

7 is a timing chart for explaining a control operation in the frozen dessert manufacturing apparatus shown in FIG.

FIG. 8 is a schematic configuration diagram showing a frozen dessert manufacturing apparatus according to still another embodiment of the present invention.

9 is a timing chart for explaining a control operation when taking out a frozen dessert in the frozen dessert manufacturing apparatus shown in FIG.

FIG. 10 is an explanatory diagram showing a frozen dessert first taken out by a conventional frozen dessert manufacturing apparatus.

[Explanation of symbols]

 3 Freezing cylinder 3e Dasher (stirring machine) 3g Start push switch (stirring start means for picking frozen desserts) 3b Operating lever (opening / closing means for take-out opening) 11 Exit 41 Photoelectric sensor (stirring start means for taking out frozen desserts)

Claims (2)

[Claims] 1. A refrigerator for cooling a raw material supplied into a freezing cylinder to produce a frozen dessert and a frozen dessert in the freezing cylinder while agitating the frozen dessert, the frozen dessert being provided at one end of the freezing cylinder. In a frozen dessert manufacturing apparatus comprising a stirrer for giving a pushing force to a take-out direction and a take-out opening / closing means operated when taking out a frozen dessert in a freezing cylinder, before operating the take-out opening / closing means for opening the take-out opening. An apparatus for manufacturing frozen desserts, wherein means for starting stirring at the time of taking out frozen desserts for starting the operation of the agitator is provided. 2. The frozen dessert manufacturing apparatus according to claim 1, wherein the operation of the refrigerator is started together with the operation of the stirrer by the stirring start-up means for picking up the frozen dessert.