JPH08140581A - Frozen dessert-producing apparatus - Google Patents

Abstract

PURPOSE: To provide a frozen dessert-producing apparatus capable of inhibiting the operation of a stirrer even if an extraction apparatus is broken down to prevent the deterioration of the quality of a frozen dessert in a cooling cylinder. CONSTITUTION: This frozen dessert is composed of a hopper 2 for storing a mix, a cooling cylinder 8 for producing a frozen dessert such as soft cream with the mix fed from the hopper 2, a cylinder cooler 11 provided in the cooling cylinder 8, a stirrer 10 for stirring the mix when the mix is cooled and a extracting apparatus 15 for extracting the frozen dessert produced by the cooling cylinder 8. An extraction time of the extraction apparatus 15 is measured and when the extraction time is passed for a prescribed time or above, alarm is outputted and the stirrer 10 is stopped.

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 serve ice cream.

[0002]

2. Description of the Related Art Conventionally, this kind of frozen dessert producing apparatus for producing frozen desserts such as soft ice cream has been disclosed in, for example, Jitsuko Sho 63-203.
As disclosed in Japanese Patent Publication No. 04-04, a hopper that stores a mix (frozen dessert mix) that is a raw material for soft ice cream, a cooling cylinder that manufactures soft ice cream from the mix supplied from the hopper, and a mix provided in the cooling cylinder. An agitating device for agitating, a compressor, a condenser, a pressure reducing device, and a refrigerating device composed of a cooling cylinder and a cooler provided in each of the hoppers, and an extraction for extracting the frozen dessert produced in the cooling cylinder A structure having a device is disclosed.

In this frozen dessert manufacturing apparatus, stirring of the stirring device is continued during the extraction operation of the frozen dessert, and the switch is turned ON / OFF based on the opening / closing operation of the extraction port to control stirring.

[0004]

The above-mentioned conventional frozen dessert manufacturing apparatus has the agitator in a continuous operation state when the extractor fails, that is, the switch is misadjusted, the switch is broken, or the wiring is defective. Therefore, there is a problem that the retention of the mix is deteriorated, a so-called sag phenomenon occurs, and the commercial value of the frozen dessert is lost.

The present invention has been made in order to solve the above-mentioned conventional technical problems, and even if the extraction device fails,
An object of the present invention is to provide a frozen dessert manufacturing apparatus capable of prohibiting the operation of the stirring device and preventing the quality degradation of the frozen dessert in the cooling cylinder.

[0006]

As means for achieving the above-mentioned object, a hopper for storing a mix, a cooling cylinder for producing a frozen dessert such as soft ice cream from the mix supplied from the hopper, and the cooling cylinder And a stirring device for stirring the mix at the same time as cooling the mix with the cylinder cooler, and an extracting device for extracting the frozen dessert produced by the cooling cylinder. Provided is a frozen dessert manufacturing apparatus which measures an extraction time, outputs an alarm and stops the stirring device when a predetermined time or more has elapsed.

[0007]

According to the frozen dessert making apparatus of the present invention, even if the stirring device is kept continuously stirring due to a failure of the extracting device, an alarm is output to notify the user when a predetermined time has passed and the stirring device is also operated. Therefore, the quality of the frozen dessert is prevented from being deteriorated by stirring the frozen dessert in the cooling cylinder without the user's knowledge.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a vertical sectional side view of a frozen dessert making apparatus SM according to an embodiment of the present invention, FIG. 2 is a front view of the frozen dessert making apparatus SM, and FIG. 3 is a block diagram of a control device C of the frozen dessert making apparatus SM. The frozen dessert manufacturing device SM of the embodiment is a device for manufacturing and selling frozen desserts such as soft ice cream and shakes of vanilla and chocolate, and in FIG. A hopper 2 for storing a frozen dessert mix) is provided. The hopper 2 has an opening on the upper surface, and the opening is opened and closed by a detachable cover 3, and the cover 3 is removed when the mix is replenished. A hopper cooler 4 is wound around the hopper 2, and the mix in the hopper 2 is kept cool by the hopper cooler 4.

Further, a hopper stirrer 5 called an impeller is provided on the inner bottom of the hopper 2, and is driven to rotate by a stirring motor 6 provided below. Further, a mix level sensor 7 composed of a pair of conductive electrodes is attached at a position of a predetermined height on the side wall of the hopper 2, and the electrodes of the mix level sensor 7 are brought into conduction so that a predetermined amount in the hopper 2 (mix The hopper stirrer 5 is continuously rotated in a state of detecting a mix equal to or higher than the height at which the level sensor 7 is provided. It is rotated intermittently.

Reference numeral 8 is a cooling cylinder for manufacturing a frozen dessert by rotating and stirring a mix, which is appropriately supplied from the hopper 2 by the mix supply device 9, by a beater 10, and a cylinder cooler 11 is attached around the cooling cylinder. The beater 10 includes a beater motor 12, a drive transmission belt, and a speed reducer 1.
3 and rotating shaft. The frozen desserts produced are
By operating the extraction lever 15 of the extraction device provided on the front freezer door 14, the plunger 16 moves up and down, the extraction path 17 is opened, and the beater 1
It is taken out by rotating 0. That is, when the take-out lever 15 is opened, the switch for energizing the beater motor 12 (not shown) is turned on to rotate the beater 10, and when the take-out lever 15 is closed, the energization of the beater motor 12 is stopped. . Here, in the embodiment, as shown in FIG. 2, 3 of 15A, 15B and 15C divided into vanilla, chocolate and a mixture thereof.
An individual takeout lever is provided.

Next, in FIG. 1, R is a reversible refrigerator. Explaining the refrigerating apparatus R below, 18 is a compressor, and 19 is a refrigerant flowing from the compressor 18 in a flowing direction depending on whether a cooling circuit (solid arrow) is formed or a heating circuit (broken arrow) is formed. A four-way valve for switching in the opposite direction, 20 is a water-cooled condenser. In the case where the four-way valve 19 constitutes a cooling circuit, the condenser 2
The high-temperature and high-pressure gas refrigerant discharged from the compressor 18 flows into 0 through the check valve 21 and is condensed and liquefied into a liquid refrigerant.

This liquid refrigerant passes through the check valve 22 and then passes through the dryer 2.
When it comes out of 3, it splits into two directions, one is cylinder cooling valve 2
4. The pressure is reduced via the cooling cylinder capillary tube 25, flows into the cylinder cooler 11 and evaporates there, and cools the cooling cylinder 8. The other is the hopper cooling valve 26,
It is decompressed through the hopper capillary tube 27 in the front stage, flows into the hopper cooler 4 and evaporates there, cools the hopper 2, and then flows out through the capillary tube 28 in the rear stage.

After the cooling cylinder 8 and the hopper 2 have been cooled, the refrigerant is merged in the accumulator 30 and then returned to the compressor 18 via the four-way valve 19 to perform a cooling operation (sales state) (flow indicated by solid arrow). ). A hopper sensor 32 for detecting the temperature of the hopper 2 is attached to the hopper 2, and a cylinder sensor 31 for detecting the temperature of the cooling cylinder 8 is attached to the cooling cylinder 8.

Next, a case where the four-way valve 19 constitutes a heat sterilization circuit will be described. In this case, the four-way valve 19 is operated to flow the refrigerant in the direction of the broken line arrow in the figure. That is, the high-temperature and high-pressure gas refrigerant discharged from the compressor 18, that is, hot gas, is split into two directions by the four-way valve 19 and the accumulator 30, one of which directly flows into the cylinder cooler 11 and the other of which is the check valve 33. Through which the cooling cylinder 8 and the hopper 2 are heated at a specified sterilization temperature for a predetermined time (+ 72 ° C., 40 minutes).

The liquefied refrigerant that radiates the heat here has a cylinder hot gas valve 34 and a hopper hot gas valve 35, respectively.
After merging via the condenser 20, gas-liquid separation is performed in the condenser 20, and the refrigerant gas passes through the reverse solenoid valve 36 and the reverse capillary tube 37 connected in parallel, and returns to the compressor 18 via the four-way valve 19 to perform the heat sterilization operation. Done. Incidentally, 3
A sterilization sensor 8 detects the heating temperature of the cooling cylinder 8.

Reference numeral 40 denotes a water cooling device for cooling the condenser 20, which includes a water saving valve 41, a pressure sensor 42 for detecting the pressure of the refrigerant in the condenser 20, and a water supply passage 43. Then, when the high-temperature and high-pressure gas refrigerant flows from the compressor 18 into the condenser 20 and the refrigerant pressure of the condenser 20 rises, the pressure sensor 42 detects it and opens the water-saving valve 41. When the water-saving valve 41 is opened, cooling water is circulated through the water supply passage 43 into the water cooling device 40 as indicated by the alternate long and short dash line in the figure to cool the condenser 20.

Reference numeral 44 is an electrical equipment box, 45 is a front drain receiver, and 46 is a water tap, which is supplied with water when washing the mix. An operation panel 50 is provided above the freezer door 14 on the front of the main body 1, and a plurality of key switches such as a cooling operation switch and a sterilization switch are provided on the operation panel 50. Next, in FIG. 3, the control device C is composed of a general-purpose microcomputer 77, and the input of this microcomputer 77 is linked to the cylinder sensor 31, the hopper sensor 32, the sterilization sensor 38, and the take-out lever 15. Extraction switch S
Each output of W and the key switch provided on the operation panel 50 is connected. In addition, the microcomputer 77
The motor 18M of the compressor 18, the beater motor 12, the stirring motor 6, the cylinder cooling valve 24,
Hopper cooling valve 26, cylinder hot gas valve 34, hopper hot gas valve 35, four-way valve 19 and reverse valve 36.
Is connected.

Next, the operation of the frozen dessert manufacturing apparatus SM of the present invention having the above configuration will be described with reference to the flow chart of the microcomputer 77 of FIG. In step S1, the microcomputer 77 determines whether or not the switch of the take-out lever 15 (hereinafter referred to as take-out switch) is ON, and if the take-out switch is ON, the process proceeds to step S2 and the switch abnormality flag is "1". To determine. Here, since the switch abnormality flag is "0" in the normal initial state, the process proceeds to step S3. In step S3, the 5-minute timer determines whether or not 5 minutes have passed since the switch was turned on. If it is within 5 minutes, the beater motor 12 is operated in the next step S4, and 5 minutes have passed. If so, the switch abnormality flag is set in step S5, the alarm LED is turned on in step S6, and the beater motor 12 is stopped in step S7. Then, the process proceeds to step S10 to control the temperature of the soft serve ice cream.

If the switch abnormality flag is "1" in step S2, the switch abnormality flag is set in step S5, the alarm LED is turned on in step S6, and the beater motor 12 is turned on in step S7. Stop. Then, the process proceeds to step S10 to control the temperature of the soft serve ice cream. If the take-out switch is not ON in step S1, the process proceeds to step S8, the switch abnormality flag is reset, and then the 5-minute timer is also reset in step S9. Then, step S1
The temperature is shifted to 0 and the temperature of the soft serve ice cream is controlled.

The normal soft ice cream (frozen dessert) temperature control in step S10 will be described below. In the temperature control of step S3, when the cooling operation switch is pressed during business hours, the microcomputer 77 executes the cooling operation (sales state). In this case, the microcomputer 77 switches the four-way valve 19 to configure the cooling circuit and closes the reverse valve 36. Then, based on the output of the cylinder sensor 31, the cylinder cooling valve 24 is controlled between the lower limit temperature (set value) and the upper limit temperature (set value + 1.5 ° C.).
ON (open) -OFF (close), compressor motor 18
M is turned on and off to set the cooling cylinder 8 at the set temperature (about −
3 ° C to -8 ° C).

Further, the microcomputer 77 turns on (open) -off the hopper cooling valve 26 in the temperature range of + 10 ° C to + 8 ° C based on the output of the hopper sensor 32.
(Closed), the compressor motor 18M is turned on and off to cool the hopper 2. In addition, the microcomputer 7
Reference numeral 7 indicates that the stirring motor 6 is turned on and the hopper cooling valve 26 is turned on.
Driven in synchronization with (open), the hopper stirrer 5 is rotated while the hopper 2 is being cooled (soft cream temperature control described later). However, in this cooling operation, the cooling of the cooling cylinder 8 is prioritized, and the hopper cooling valve 26 is turned on when the cylinder cooling valve 24 is off.

Next, when the sterilization switch is pressed with the end of business, the microcomputer 77 executes the heat sterilization operation. In this case, the microcomputer 77 switches the four-way valve 19 to configure the heat sterilization circuit and opens the reverse valve 36. Then, based on the output of the sterilization sensor 38, a predetermined lower limit that is predetermined so that the prescribed sterilization temperature is maintained for the mix,
Turns on the cylinder hot gas valve 34 between the upper set temperatures.
(Open) -OFF (Closed), turn on the compressor motor 18M
By performing N-OFF, heat sterilization of the cooling cylinder 8 is performed.

Further, the microcomputer 77 turns on (open) -OF the hopper hot gas valve 35 at the temperature set in the cooling cylinder 8 based on the output of the hopper sensor 32.
F (closed), the compressor motor 18M is turned on and off to heat the hopper 2 and heat sterilize the mix in the hopper 2. Further, the microcomputer 77 drives the stirring motor 6 during the heat sterilization operation, and the hopper stirrer 5 is driven.
To rotate. Note that the microcomputer 77 shifts to cooling after heat sterilization, and the cooling cylinder 8 and the hopper 2 are kept in a low temperature state to some extent, that is, a cool temperature (+ 8 ° C. to + 10 ° C.) until the next day's sale, so that the compressor 18 is cooled. Cooling operation is performed to perform ON-OFF control and ON-OFF control of the cylinder cooling valve 24 and the hopper cooling valve 26.

[0024]

As described above in detail, according to the present invention, even if the agitator remains in a state of being continuously agitated due to a failure of the extractor, an alarm is output and a user is notified after a predetermined time has passed. Since the stirring device is stopped, it is possible to notify the user of the failure of the extraction device and prevent the sagging device from causing the settling of frozen desserts.
As a result, the reliability of the device can be improved and the quality of the extracted frozen dessert can be maintained.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a frozen dessert manufacturing apparatus of the present invention.

FIG. 2 is a front view of the frozen dessert manufacturing apparatus of the present invention.

FIG. 3 is a block diagram of a control device of the frozen dessert manufacturing apparatus of the present invention.

FIG. 4 is a flowchart showing a program of a microcomputer.

[Explanation of symbols]

 SM frozen dessert making device C control device 2 hopper 8 cooling cylinder 10 beater 11 cylinder cooler 12 beater motor 15 take-out lever

Claims (1)

[Claims] 1. A hopper for storing a mix, a cooling cylinder for producing frozen dessert such as soft ice cream from the mix supplied from the hopper, a cylinder cooler provided in the cooling cylinder, and a cylinder cooler. It consists of a stirrer that cools the mix and at the same time stirs the mix, and an extractor that extracts the frozen dessert produced by the cooling cylinder.Measure the extraction time of this extractor. A frozen dessert manufacturing apparatus, which outputs the output and stops the stirring device.