JPS6372Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a frozen dessert dispenser, and more specifically, it supplies multiple raw materials including water to a cooling chamber through a supply pipe and stirs them. This invention relates to a frozen dessert dispenser that manufactures frozen desserts by cooling the desserts.

[Conventional technology]

FIG. 3 shows a conventional frozen dessert dispenser, in which carbon dioxide gas in a carbon dioxide gas cylinder 1 is pressure-regulated by a regulator 9 and then branched, and one side is further depressurized via a solenoid valve 11 and a regulator 10 and then supplied to a relay tank 3. be done. The other carbon dioxide gas is supplied to the syrup tank 2 and is used as pressure for extruding the syrup. The syrup in the syrup tank 2 is supplied to the flow regulator 16 and the solenoid valve 1.
2 to the relay tank 3. Water in the water storage tank 6 is pressurized by the pump 7 and supplied to the relay tank 3 via the regulator 8 and check valve 15. 13 is a pouring pot for pouring out the product;
Reference numeral 14 is an evaporation pipe wound around the cooling chamber 4 and connected to a refrigeration system (not shown). 5 is a pressure switch of a safety device. Raw materials such as syrup, water, and carbon dioxide supplied to the relay tank 3 are mixed in the relay tank 3, and the mixed liquid is supplied to the cooling chamber 4 via the communication pipe 17, where it is frozen and stirred to produce frozen desserts. be done.

In the above-mentioned frozen dessert dispenser, the method for detecting the completion of production of frozen desserts is, firstly, as the frozen dessert is made, the viscosity increases and the stirring torque increases, so this increase in torque is mechanically detected and the switch is activated. What is controlled by. The second one also detects torque, but it electrically detects increases in torque. The third type detects and controls the refrigerant temperature in the circulation path of the refrigerator. Fourth, there are methods that directly detect and control the temperature change of the frozen dessert in the cooling chamber, and these methods are used to control cooling and maintain the frozen dessert in a good condition.

Among the above, the fourth method for directly detecting the temperature of frozen desserts has conventionally been used in few cases because sensors capable of detecting small temperature differences have been expensive, and most of them have been torque detection. However, in recent years, thermistors have become available at low prices, and some products have been commercialized for use in this type of temperature detection.

[Problem that the invention attempts to solve]

In conventional frozen dessert dispensers that directly detect the temperature of frozen desserts, the temperature of the mixed liquid to be replenished is as follows: Since the temperature is much higher than that of the frozen confectionery in the cooling chamber, it is desirable to start the cooling operation immediately after replenishment, but as the replenished raw materials mix with the cold frozen confectionery in the cooling chamber 4, the temperature of the replenishment liquid decreases. , it cannot be detected by the sensor, and the temperature of the entire mixed liquid in the cooling chamber does not rise unless a considerable amount is replenished, and the temperature is not detected until the frozen dessert has warmed up and is almost liquid, which delays the start of cooling. There was a problem.

This invention was made in order to solve the above-mentioned problems, and aims to provide a frozen dessert dispenser that can start cooling operation immediately after the cooling chamber is replenished with raw materials.

[Means for solving problems]

The frozen dessert dispenser according to this invention is provided with a sensor that directly detects the temperature of the frozen dessert in the cooling chamber, and the sensor is located close to and on the same circumference as the supply pipe that supplies raw materials to the cooling chamber, and further , is located on the side in the direction of stirring rotation than the supply pipe.

[Effect]

With this device, even if a warm mixed liquid is supplied, the mixed liquid reaches the sensor section without being diffused or cooled down to the point where the sensor can no longer sense the temperature, so the sensor immediately detects a rise in temperature. Detected and starts cooling operation.

〔Example〕

Figures 1 and 2 show an embodiment of this invention,
The mixed liquid is supplied into the cooling chamber 4 from the supply pipe 18 via the communication pipe 17 . The stirring blade 19 rotates clockwise as indicated by arrow A to stir the mixed liquid. A sensor 20 in which a thermistor 21 is inserted into a metal pipe with good thermal conductivity is provided inside the resin holder 23 with good heat insulation, and is attached to the cooling chamber 4 via a packing 22. The sensor 20 is located approximately on the same circumference as the supply pipe 18 and in close proximity to the supply pipe 18 .
It is located closer to the rotational direction of the stirring blade 19 than the stirring blade 19 . A lead wire portion from the thermistor 21 inside the sensor 20 is molded with a heat insulating resin 24. The stirring blade 19 is connected to the sensor 2 as shown in FIG.
Avoiding 0.

With the above configuration, the mixed liquid in the cooling chamber 4 is cooled and stirred to become a frozen dessert, and when the frozen dessert is made, the sensor 20 detects that the temperature has fallen to a predetermined temperature, and the freezing device is stopped and only stirring operation is performed. As the cooling continues, the temperature of the frozen dessert rises, and when the sensor 20 detects that the temperature has risen to a predetermined temperature, the freezing device is operated and cooling is started.

By repeating the above cooling and stopping, the frozen dessert in the cooling chamber 4 is always maintained in a good condition.

When the frozen dessert is sold, the mixed liquid is replenished into the cooling chamber 4 from the supply pipe 18. At this time, sensor 2
0 is close to the supply pipe 18 and on the rotational direction side of the supply pipe 18, so warm replenishment liquid flows to the sensor 20, detects a temperature rise immediately after replenishment, and starts cooling operation.

[Effect of idea]

As described above, this invention places the sensor in the cooling chamber close to the supply pipe on almost the same circumference.
In addition, since it is provided on the rotational side of the stirring direction than the supply pipe, when the raw material is replenished into the cooling chamber, the warm replenishment liquid comes into contact with the sensor, so cooling starts immediately, and the frozen dessert is always maintained in a good condition. Furthermore, since replenishment of raw materials can be immediately detected, the time required to complete cooling is shortened.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view of the main part of an embodiment of this invention.
FIG. 2 is a partially sectional side view, and FIG. 3 is a layout and connection diagram of a conventional frozen dessert dispenser. 4... Cooling chamber, 18... Supply pipe, 19... Stirring blade, 20... Sensor, 21... Thermistor.

Claims (1)

[Claims for Utility Model Registration] (1) In a frozen dessert dispenser that manufactures frozen desserts by supplying water and a plurality of raw materials to a cooling chamber through supply pipes and cooling them while stirring, the temperature of the frozen desserts is directly detected. A frozen dessert dispenser characterized in that a sensor is provided in the cooling chamber, on substantially the same circumference as the supply pipe, close to the supply pipe, and on the side of the supply pipe in the rotational direction of stirring. . (2) A frozen dessert dispenser according to claim 1, which is equipped with a sensor consisting of a thermistor.