JP2562608B2 - Frozen dessert making equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for producing frozen desserts such as soft ice cream and ice cream shakes, and in particular, an apparatus for producing frozen desserts suitable for cleaning and sterilizing the inside of a cooling cylinder. Regarding

(B) Conventional technology In this type of frozen dessert making apparatus, the mix that is the raw material of frozen dessert is filled into the cooling cylinder every day when the store is opened, and the rest is recovered when the store is closed. At this time, the inside of the cooling cylinder is washed and sterilized. Work is required.

Therefore, conventionally, as shown in, for example, Japanese Patent Publication No. Sho 54-37223, tap water is heated to a high temperature in a tank in which temperature control and water amount control are performed inside the apparatus, and the hot water is used as a raw material tank for cooling and sterilization. A predetermined amount of hot water is supplied to the cylinder, and after a lapse of the automatically regulated required time, the gate plunger of the product extractor is opened to drain hot water after cleaning and sterilization.

(C) Problems to be Solved by the Invention However, according to the above-mentioned conventional technique, since the hot water in the tank which has been heated to a high temperature in advance is supplied to the raw material tank and the cooling cylinder, a large amount of heat is taken by the cylinder and the tank. Moreover, there is a problem that the supplied hot water temperature is lower than the sterilization temperature due to the heat loss due to the piping and the heat radiated to the outside air.

Therefore, an object of the present invention is to provide a frozen dessert manufacturing apparatus that solves the above-mentioned problems of the prior art, prevents the temperature of the hot water in the cooling cylinder from decreasing, and can surely perform washing and sterilization.

(D) Means for Solving the Problems For this reason, the present invention provides a frozen dessert manufacturing apparatus including means for supplying hot water during washing and sterilization in a cylinder for stirring and cooling frozen dessert ingredients and discharging hot water after a predetermined time. While exchanging heat with the cylinder, the heat exchange means for heating or cooling the cylinder by reversing the flow direction of the heat medium using the four-way valve, and the temperature detecting means for detecting the temperature in the cylinder During the cleaning and sterilization, the heat exchanging means is heated, and the heating operation of the heat exchanging means is controlled based on the temperature detected by the temperature detecting means and a preset temperature to supply hot water into the cylinder. And heating control means for maintaining the hot water at the sterilization temperature.

(E) Action Therefore, since the means for heating the cylinder when cleaning and sterilizing the inside of the cylinder and the means for cooling the cylinder during the frozen dessert production are realized by the same heat exchange means, the apparatus can be downsized. Therefore, the device cost can be reduced.

(F) Embodiments Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 (a) is a side view showing the arrangement of essential parts of an ice cream shake manufacturing apparatus according to an embodiment of the present invention, and FIG. 1 (b) is a front view of the ice cream shake manufacturing apparatus. The refrigerator 1 is arranged at the rear of the device. A compressor 2 and a condenser 3 are arranged above the refrigerator 1, and are configured to send cold air generated by compressing and expanding the refrigerant into the refrigerator. The inside of the container is divided into upper and lower two stages, four flavor (syrup) tanks 4 of different types in the upper stage, and a mix tank 5 containing the main ingredients of the ice cream shake in the lower stage open and close the doors 6 and 7, respectively. It is stored so that it can be taken out freely.

As can be seen from FIG. 2, the mix tank 5
The mix liquid therein is supplied from the rear part into the cooling cylinder 9 installed in the front of the apparatus via the mix pump 8 to be cooled and stirred to become ice cream. On the other hand, the flavor liquid in the flavor (syrup) tank 4 is supplied via a flavor pump 10 to a freezer door 11 provided in the front part of the cooling cylinder 9. Then, the flavor liquid is added to the stirred ice cream, shaken and extracted into a paper cup. In addition, this cooling cylinder 9 has two
Although two of them are arranged side by side, only one of them is shown in the figure.

As can be seen from FIG. 3, the cooling cylinder 9 has its front part cooled by a front compressor 12 and front condenser 13, while its rear part is cooled by a rear compressor 14 and a rear condenser 15.

That is, as shown in FIG. 3, on the outer peripheral surface of the front part of the cooling cylinder, there is a refrigerant pipe 20 connected from the front compressor 12, the front condenser 13, the dehydrator 16, the cooling solenoid valve 17, the capillary 18 to the header 19. It is wound. On the other hand, on the outer peripheral surface of the rear part of the cooling cylinder, a double-way connecting from the rear compressor 14 to the four-way valve 21, the check valve 22, the rear condenser 15, the dry core 23, the expansion valve 24 and the four-way valve 21 and the rear compressor 14 again. Refrigerant piping 25 is wound in parallel. Further, cooling water is supplied to the condensers 13 and 15 of each cooling system through water-saving valves 26 and 27 whose opening is adjusted by the discharge amounts of the compressors 12 and 14.

In addition, since the rear part of the cooling cylinder 9 is an internal sterilization process,
A check valve 28 is arranged in parallel with the expansion valve 24, and a capillary 29 is arranged in parallel with the check valve 22 in order to heat the cooling cylinder 9 by switching the flow of the refrigerant by the four-way valve. In front of the cooling cylinder 9, there is a pre-temperature sensor 3 for measuring the temperature during cooling.
0, a sterilization temperature sensor 31 that measures the temperature during sterilization, and a rear temperature sensor 32 that measures the temperature during cooling are disposed behind the cooling cylinder 9.

In FIG. 1, inside a cooling cylinder 9, a peter (not shown) for cooling and stirring the injected mixed liquid and mixing air is enclosed. The rotary shaft 40 is connected to the rotary shaft of a beater motor 45 via a gear box 41, a pulley 42, an endless belt 43, and a pulley 44.

In order to heat the shaft seal portion 46 of the rotary shaft 40 at the time of heat sterilization treatment, a cistern 47 for storing water and an electric water heater 48 for heating water supplied from the cistern 47 are provided. That is, the second
As shown in the figure, water is stored in the cistern 47 whose level is adjusted by the ball tap 49, from which the supply solenoid valve 50 is supplied.
Is supplied to the electric water heater 48 and heated. The heated hot water is supplied to the shaft seal portion 46 of the rotary shaft 40 that rotates the beater via the water amount adjuster 51.

The freezer door 11 provided at the front part of the cooling cylinder 9 is, as shown in detail in FIG. 4, an ice that is pushed out by rotation of a beater 60 enclosed in the cooling cylinder 9 in a block 61 that closes the inside of the cooling cylinder. A mix passage 62 for extracting cream is formed. The mix passage 62 is formed at a right angle, and a door valve 64, which is pressed by a spring 63 and closes the passage, is arranged in a horizontal path connected to the inside of the cooling cylinder 9. The tip of the push pin 65 is engaged with the tip of the door valve 64, and the rear end of the door valve 64 is engaged with a stupid hole 67 formed in one end of the lever 66 by a pin 68. The lever 66 is rotatably held around a pin 69 that is erected in the closing block 61 as a pivot, and the other end is engaged with the tip of a rod 71 that is a movable iron core of a solenoid 70. When the solenoid 70 is in the OFF state, the force of the spring 72 causes the rod 71 to be retracted so that the protruding portion of the tip has the minimum length. Therefore, in this state, the door valve 64 is pushed out by the spring 63 and closes the mix passage 62. On the other hand, the solenoid 70
In the ON state, the rod 71 is projected against the force of the spring 72, whereby the lever 66 rotates with the pin 69 as a fulcrum until the other end contacts the tip of the opening adjustment screw 73. This rotation of the lever 66 causes the push pin 65 to move to the door valve 64.
Push down against the force of the spring 63,
Is released.

On the other hand, the vertical path of the mix passage 62 has a spinner motor.
A spinner shaft 75 attached to a rotating shaft of 74 is fitted and inserted through a spinner bearing 76.

As described above, the two cooling cylinders 9 are arranged, therefore, there are also two freezer doors 11, and the four kinds of flavor liquids from the flavor (syrup) tank 4 are two as shown in FIG. Each type is supplied to the vertical passage of the mix passage 62 via the flavor tube 77. Of course, there are four flavor tubes 77 in the vertical path of the mix passage 62.
When the one cooling cylinder 9 is stopped, four flavor tubes 77 are attached to one freezer door 11 as shown in FIG.

As shown in FIGS. 1 and 4, a cup table 80 is provided under the freezer door 11, and a paper for receiving an ice cream shake in which a flavor is added to the ice cream extracted from the mix passage 62 is provided on the cup table 80. Cup 81
Is placed. A large number of the paper cups 81 are stored in a cup dispenser 82 provided in the upper part of the loading front so that they can be taken out freely.

The cup table 80 is detachably locked to one end of the weight detector 83. As shown in FIG. 4, the weight detector 83 is formed by punching out a portion indicated by A from a metal block such as an aluminum alloy to form a thin portion, on which strain sensors 84a to 84d are attached, while The other end of the block is fixed to the device. The strain sensors 84a to 84d are bridge-connected as shown in FIG. 7, and the output thereof is taken out as a weight detection signal via the differential amplifier 85.
In this case, the differential amplifier 85 provides an output voltage that changes linearly with respect to the weight change.

Further, as shown in FIG. 1 (a), a temperature control box 90, a weight control box 91,
An internal cooling fan 92, a unit cooling fan 93, an electrical equipment box 94, a drain storage box 95, etc. are provided.

Also, as shown in Fig. 1 (b), a paper cup on the front of the device
Operation panels 100, 101, and 102 are arranged below a cup dispenser 82 that houses 81.

As described above, two cooling cylinders 9 are arranged in the apparatus of this embodiment. Therefore, the operation panel 100 is the eighth
As shown in the figure, two sets of switches and displays having the same function are arranged on the left and right around the monitor display 110 and the cancel switch 111. Display unit 1 of the monitor display 110
10a lights up when the internal temperature of the refrigerator 1 is 10 ° C. or higher and 60 minutes have passed. The display unit 110b lights up when the mix is low. The display unit 110c lights up when the mix is exhausted.

When the automatic switch 112 is pressed, the shake amounts of the four flavors are automatically measured and pushed out. While the manual switch 113 is being pressed, the shake amount of each flavor is extracted.
The freezer lamp 114 is in a blinking state during cooling (the front compressor 12 and the rear compressor 14 are operating), and is in a lighting state during standby. The steril lamp 115 is turned on during the hot water washing and sterilization. Of the monitor display unit 116, the display unit 116a lights up when the beater motor and thermal are activated, and the cooling cylinder 9
Will stop cooling and ice cream will not be able to be extracted. The display unit 116b lights up when there is a problem in the hot water washing and sterilization process. The display unit 116c blinks when there is a power failure. The display unit 116d lights up when the high-voltage switch of the cooling unit is activated, and the cooling is stopped. The display unit 116e lights up when an abnormality occurs in the mix pump, and the extraction is stopped.

Similarly, in the operation panel 101, as shown in FIG. 9, two sets of switches and displays having the same function are arranged on the left and right around the reset switch 120. The reset switch 120 is a switch that releases an alarm lamp and a buzzer by an electronic circuit. The switches arranged on the left and right of the switch 120 are a first flavor line cleaning switch 121, a second flavor line cleaning switch 122, and a first flavor line cleaning switch 122, respectively.
Mix line cleaning switch 123, second mix line cleaning switch 124, mix feed switch 125 for precharging the mix to the cooling cylinder 9, freezer switch 126 for starting cooling of the cooling cylinder 9, initial setting of ice cream shake weight and flavor amount. Are a carry (calibration) switch 127 used for verification, a first steri switch 128 that thaws and automatically discharges the ice cream in the cooling cylinder 9, and a second steri switch 129 that performs hot water sterilization cleaning.

On the operation panel 102, as shown in FIG. 10, a power switch 130, a volume 131 for setting the temperature of the ice cream shake, and an automatic switch 112 of the operation panel 100 are operated to adjust the total weight of the ice cream shake during automatic extraction. Volume 132, door valve 64 described in FIG. 4 above
By adjusting the opening of the adjustment screw 73 for adjusting the ice cream shake extraction speed, at the time of automatic extraction of the ice cream shake, at the end, only the ice cream for cleaning the mix passage 62 of the freezer door 11 is slightly discharged, Volume 133 for adjusting the dot amount, volume 134 for similarly adjusting the dot amount during manual extraction, volume 135 for adjusting the flavor addition amount, and a cylinder for selecting whether to use two cooling cylinders 9 or left or right. A selection switch 136 is arranged.

FIG. 11 shows a block diagram of a system controller mounted on the ice cream shake manufacturing apparatus of the present embodiment, and the system control apparatuses are arranged on the left and right when viewed from the front of the ice cream shake manufacturing apparatus. There are two in total, one for each cooling cylinder 9, but in the figure,
Only one of them, the control device of the right system, is shown, and the others are omitted. Further, this one control device further includes two control blocks 140A (also referred to as A substrate) and a control block 140B (also referred to as B substrate). Each of these control blocks 140A and 140B includes an amplifier circuit 141 for amplifying a signal from the operation panel 102 and an AD converter 142 for AD converting an output signal of the amplifier circuit 141.
And a CPU (Central Processing Unit) 143 that executes a process in accordance with the converted digital signal and outputs a device drive stop command, a display signal, etc., and actually operates each pump etc. in accordance with the device drive stop command. A relay circuit 144 for controlling, various test keys 145, a display 146, etc. are provided.

Next, the operation of the ice cream shake manufacturing apparatus configured as above will be described below.

The two cooling cylinders 9 mounted on this device are
2 flavour tubes 77 each, as shown.
Connect to the book, set the cylinder selection switch 136 on the operation panel 102 shown in FIG. 10 to Dual, and operate the operation panel 1
When each switch on 00 to 102 is operated, the control operation relating to the two cooling cylinders 9 is performed under the control of the left and right system control devices shown in FIG. . Further, when only one of the left and right cooling cylinders 9 is to be operated, the flavor tube 77 is connected to the cooling cylinder 9 to be operated, the cylinder selection switch 136 is switched to the right or left, and the operation panel 100 to By operating the switch on 102, the desired control operation for the selected cooling cylinder 9 is performed.

Therefore, by operating both cooling cylinders 9 in the summer when the sales amount is large according to the sales amount of the ice cream shake, and by operating either one of the cooling cylinders 9 in the winter season when the sales amount is small, the ice cream shake It is possible to operate the equipment flexibly corresponding to the sales volume of.

In addition, even if there is a trouble in the equipment of one of the cooling cylinder systems or a failure of the system control device, by providing two cooling cylinder systems as in the device of this embodiment, the system can be switched to the normal system and the ice cream shake. Will continue to be sold and the equipment will be able to operate effectively.

By the way, the operation of this device is roughly divided into
It can be divided into three operations during closing and after closing. The operation before opening the store is performed by sequentially operating the operation switches 121 to 127 for the left and right cylinders of the operation panel 101 arranged on the front surface of the apparatus. On the other hand, the ice cream shake selling operation during opening of the store is performed by appropriately selecting and operating the automatic switch 112 or the manual switch 113 of the four flavors of the operation panel 100. Further, the operation is performed by operating the operation switches 128 and 129 of the operation panel 101 after closing the store in order. These operations will be described in order below.

First, sterilizing detergent is prepared in the four flavor (syrup) tanks 4 before opening, and the first flavor line washing switch
Press 121. When this switch is pressed, the timer 2 is operated and the flavor pump 10 is operated for a certain period of time, and the flavor line is sterilized and washed by the sterilizing detergent prepared in the flavor tank 4. When the timer 2 ends, the timer 1 operates to stop the flavor pump 10 and hold it for a certain period of time to connect the sterilizing cleaning liquid to the flavor line for sterilization. After the sterilization and cleaning, prepare hot water of 60 ℃ and set it on the suction side of the flavor pump 10 to set the second flavor line cleaning switch 12
Press 2. When this switch is pressed, the timer 2 operates and the flavor pump is operated for a certain period of time to rinse the flavor line with the prepared hot water.

The above operation is executed under the control of the control block 140A in FIG. 11, and the details of the processing are performed as shown in the flowchart of FIG. 12 and the time chart of FIG.

First, set 40 ℃ hot water containing hypochlorous acid on the suction side of the flavor pump and press the 1st flavor line cleaning switch 121, and check the flag set in the mix feed to see if it is in the mix feed. Judge (20
1) If NO, the flag set during cooling is checked to determine whether cooling is in progress (202), and if NO, carry is carried out in the same manner, and then steering is determined (203, 204). These are NO
If so, the flag set during the second flavor line cleaning is checked (205). If NO, it is determined whether the first flavor line cleaning switch 121 has been pressed (206). If not, the first flavor line cleaning switch 121 is pressed. If it is pressed, it is judged whether or not the switch 121 is the second time (207), and if YES, the first to stop the first flavor line cleaning Turn off the LED for flavor line cleaning, and turn off (208) flavor line pumps 1 to 4 (20
9). If NO, the first flavor line cleaning operation is performed (210). First, turn on the LED for the first flavor line washing, turn off the blinking LEDs for mix, feed, cooling and sterilization 1 and 2 to notify that the operation of the first flavor line washing has started (211). . Next, start counting by the 2-minute timer, and if 2 minutes have not elapsed (21
2 N), cylinder switch SW (R-dual-L)
If W is Dual and the controller is on the right side (Y of 213), turn off flavor pumps 1 and 2 and turn on 3 and 4 (214). SW
If Dual and the controller is on the left (Y of 215), turn on flavor pumps 1 and 2 and turn off 3 and 4 (216). SW is Du
If it is not al, turn on flavor pumps 1 to 4 (21
7). When 2 minutes have passed (Y of 212) and 7 minutes have not passed (218), flavor pumps 1 to 4 are turned off (209). That is, the difference of 5 minutes is the time required to hold the sterilizing solution in the flavor line. After 7 minutes (21
8 Y), the 1st flavor line cleaning LED flashes (21
9) Notify that the cleaning and sterilization of the first flavor line has been completed, and encourage the work of the second flavor line cleaning. Here, in order to wash out hypochlorous acid in the flavor line, 60 ℃
Hot water is prepared, set on the suction side of the flavor pump, and the second flavor line cleaning switch 122 is pressed. Then, it is judged that the second flavor line cleaning switch 122 is ON (220), and if it is not ON, it is judged whether or not the second flavor run-in cleaning is being performed. It is judged whether or not it has been pressed (221), and if it is the second time, the LED of the second flavor line cleaning is turned off to stop the operation of the second flavor line cleaning (222), and the flavor pumps 1 to 4 are turned off ( 223). If NO, the second flavor line cleaning operation is performed. First, the LED for the second flavor line cleaning is turned on (224), and then it is determined whether or not the first flavor line cleaning is being executed (225). If YES, it has an end, and if NO, 2 The minute timer starts counting (226), and if NO, the blinking 1st flavor line cleaning LED is turned off (227), and the cylinder switch SW (R
-Dual-L), if the SW is Dual and the controller is on the right side (228), flavor pumps 1 and 2 are turned off, and 3 and 4 are turned on (229). If SW136 is Dual and the controller is on the left (230), turn on flavor pumps 1 and 2 and turn off 3 and 4 (231). If SW136 is not Dual, flavor pump 1
Turn on 4 (232). After 2 minutes (226 Y),
The LED for cleaning the second flavor line is blinked (233), and the flavor pumps 1 to 4 are turned off (223).

After the flavor line cleaning is performed in this manner, a sterilizing cleaning agent is similarly prepared in the mix tank 5 and the first mix line cleaning switch 123 of the operation panel 101 is pressed. When this switch is pressed, the mix pump 8 operates, and as shown in FIG. 2, the air solenoid valve 155 for taking in air via the needle valve 150 also operates,
The sterilizing detergent prepared in the mix tank 5 is supplied to the cooling cylinder 9. At that time, the pressure inside the cooling cylinder 9 is detected by a pressure switch 160 (see FIG. 2) installed in front of the cooling cylinder 9, and when the pressure reaches a predetermined level, the mix pump 8 and the air solenoid valve 155 are stopped. . At the same time, timer 1 operates and beater motor
Operate 45 for a certain period of time. As a result, the mix line and the inside of the cooling cylinder 9 are sterilized by being in contact with the sterilizing liquid for a certain period of time. When timer 1 ends, timer 2 operates,
The solenoid 70 is operated to open the valve 64 in the freezer door 11 via the lever 66 to discharge the sterilizing and cleaning liquid therein.

After this mix line sterilization cleaning, a rinse liquid is prepared in the mix tank 5, and the mix line 2 cleaning switch 124 on the operation panel 101 is pressed. When you press this switch,
The mix pump 8 and the air solenoid valve 155 operate to supply the rinse liquid prepared in the mix tank 5 to the cooling cylinder 9. Mix pump 8 by pressure switch 160,
The air solenoid valve 155 is stopped. At the same time timer 2
Is operated, the beater motor 45 and the solenoid 70 are operated to discharge the liquid in the cooling cylinder 9 while stirring.
This supply / discharge operation is performed three times in total, and when the pressure switch 160 is turned on at the last (third time) discharge, the mix pump 8 and the air solenoid valve 155 are operated to rinse the cooling cylinder 9. Drain the liquid completely.
After the timer 70 ends and the solenoid 70 and the beater motor 45 stop, the mix pump 8 and the air solenoid valve 155 operate until the pressure switch 160 turns off, and the cooling cylinder 9
Put air inside to increase the pressure. This is because the liquid remaining on the bottom of the cooling cylinder 9 is easily released when the drain valve 64 of the freezer door 11 is opened.

The processing procedure described above is shown in the flowcharts of FIGS. 14 and 15, each of which is the control block 140A of FIG.
And run at 140B. At that time, the operation timing of the related equipment is as shown in FIG.

First, prepare 40 ° C hot water containing hypochlorous acid and set it on the suction side of the mix pump. In this state, the control block 140A executes the process 301 as shown in FIG. Processing 3
Since 01 is the first time, processing 303 and 304 are executed, and the control block
Send "(1st mix line cleaning) permission signal" to 140B. Upon receipt of this signal, the control block 140B starts execution from process 333 as shown in FIG. And process 33
4 and 335 are executed. Since the pressure in the cylinder is “L” in process 335, processes 346, 347 and 348 are executed.

On the other hand, the control block 140A sequentially executes the processes 304, 305, 306, 307, and 308 after executing the process 304. However, in the process 308, since the “two-minute WAIT information” is not received from the control block 140B, the process 310 is performed. Is executed and the processing shifts to the processing 315.

Hot water is supplied into the cylinder by the execution of the process 346 by the control block 140B, and when the pressure thereof rises to a predetermined level, the process shifts from the process 335 to the processes 336, 337 and 338. In process 339, the process first shifts to END, but after 5 minutes, process 34
Move from 0, 341 to END. By executing the process 340, the control block 140A executes the processes 308 and 309 and shifts to the process 315. In the control block 140B, after 2 minutes have passed in the process 341, the process shifts from the processes 342, 343, 334, 345 to END. In process 345, the control block 140A is displayed with "2 minutes WAIT
Since the output of “information” is stopped, the control block 140A executes the processes 310, 311, 312, 313 from the process 308 and shifts to the process 315. If it is determined in the process 303 that the mix 1 SW is pressed for the second time, the processes 314, 312, and 313 are executed. Processing 3
By executing step 13, step 333, step 349, and steps 342 to 345 are executed, and the processing becomes END and the execution of the first mix line cleaning is stopped.

With the above, the operation of the first mix line cleaning is completed,
Next, prepare hot water at 60 ° C and set it on the suction side of the mix pump. Here, since the process 349 is canceled by the execution of the process 345 in the above 311, the process 349 becomes NO only and the process proceeds to the processes 350, 379, and END.

Here, the control block 140A executes the processes 317 and 318 after executing the process 315. When the process 318 is executed, the control block 140B executes processes 350, 351, 352. Since the pressure in the cylinder is "L" in the process 352, the processes 375 to 378 are executed. On the other hand, the control block 140A executes the process 318.
After executing, the processes 319 to 322 are executed. In the process 322, since the process 358 has not been executed on the control block 140B side at this time, the process 324 shifts from N to END. In the process 352, the control block 140B executes the processes 353 to 359 when the pressure rises to the predetermined value, and shifts to END.

When the control block 140B executes the process 358, the control block 140A executes the processes 322 and 323. Control block 140B
Then, after two minutes have passed in process 359, process 360 is executed. When the process 360 is executed in the control block 140B, the control block 140A executes the processes 324, 325, and 326 from N in the process 322 and shifts to END.

The control block 140A repeats the above operations 317 to 322 twice, so that the control block 140B performs the process 353.
The processes 361 to 367 and END are executed from Y. Control block 1
Even though 40B executes process 364, control block 140A does process 32.
In step 2, the process 366 on the side of the control block 140B is prioritized, and therefore the process 323 is executed and the process ends.

When the processes 367 and 368 are executed from the control block 140B, the control block 140A executes processes 322 and 324 to processes 326 and 327, and the processes 326 and 32 are executed by the process 364 on the control block 140B side.
Move to 7, 328, END. When the pressure in the cylinder rises to a predetermined value in process 361, the control block 140B executes process 36.
Perform steps 9-372. When the control block 140B executes the process 372, the control block 140A executes the processes 328, 329, 330 and becomes END. When the control block 140A executes the process 330, the control block 140B executes the processes 350 to 379 to 384. The control block 140B executes the process 384 in the process 384.
Since it clears, from the next time processing 333, 349, 350, 37
It becomes 9, END and does not enter the mixline routine.

In this way, after the completion of the washing of the mix line, the drain valve 79 and the blow valve 78 are opened to drain all the washing water remaining in the cooling cylinder 9. On the other hand, mix is put in the mix tank 5 and set on the suction side of the mix pump 8.

Next, the mix feed switch 125 of the operation panel 101 is pressed to supply the mix to the cooling cylinder 9 before starting the cooling operation. When this switch is pressed, the mix pump 8 operates under the condition of pressure switch 1600N,
The measured mix in the mix tank 5 is supplied into the cooling cylinder 9. Finish with pressure switch 160 OFF.

The first is to show the processing procedure for executing this operation.
The flowcharts shown in FIGS. 17A and 17B are executed by the control blocks 140A and 140B of FIG. 11, respectively. Also,
The operation timing of the related equipment at this time is as shown in FIG.

First, the drain valve 79 and the BLOW valve 78 are opened to drain all the cleaning water remaining in the cylinder. Further, the mix is put in the mix tank 5 and set on the suction side of the mix pump. Control block 140A then proceeds to process 401.
At ~ 404, it is judged whether or not each operation is being executed, and if YES, it becomes END. Processing 401 to 404 are all NO
Then, if the feed switch 125 is not pressed, process 40
If steps 5 and 406 are executed and the feed is being executed, the processing proceeds to step 408, and if not being executed, the processing is END. When the feed switch 125 is pressed, processes 405 to 411 are executed.

When the control block 140A executes the process 408, the control block 140B executes the processes 417 and 418. Since the pressure in the cylinder 9 is “L” at first, the processes 419, 420 and END are executed.

When the control block 140B executes the process 420, the control block 140A executes processes 411, 412 and END. Cylinder 9
When the internal pressure of rises to a predetermined value, processing 418, 422 to 424, END
To execute. Further, when the control block 140B executes the process 423, the control block 140A executes the processes 412 to 415.
When the process 415 is executed, the control block 140B executes the processes 417 and 42.
Transition to 1, END. The control block 140A side is
When 405 and 407 are executed, the second feed switch
When 125 is pressed, processing 407, 416, 415 and END are executed.

At this time, when the process 415 is executed, the control block 140B
The side executes processes 417, 421 to 424, and END, and when this process 424 is executed, the process 421 is reset to only NO, and from the next time, it becomes processes 417, 421, and END and cannot be entered in the mix field routine.

After supplying the mix to the cooling cylinder 9 in this manner, it is confirmed that the mix pump 8 has stopped, and the mix tank 5 is newly supplied with the mix. Next, the freezer switch 126 of the operation panel 101 is pressed to start the mix cooling operation.

This mix cooling operation is performed in the mode shown in FIG. 19 under the control of the control blocks 140A and 140B, since the operation modes are slightly different between the initial cooling, the cycle operation (no sale), and the sale. It

As described above, the cooling of the cooling cylinder 9 is performed by the front cooling unit including the front compressor 12 and the front condenser 13, and the rear cooling unit including the rear compressor 14 and the rear condenser 15. In this case, the front cooling unit turns on when the front sensor 30 is -2.9 ° C or higher and turns off at -3.0 ° C or less, and the rear cooling unit turns on when the rear sensor 32 is -1.4 ° C or higher, and at -1.7 ° C or lower during initial cooling. While it is turned off, it is set to turn off at -1.5 ° C during cycle operation (no sale) and during sale.

Mix tank 5 in the cooling cylinder during initial cooling
The mix supplied from the above through the mix pump 8 is housed therein, and the temperature thereof is around 4 ° C. Therefore, when the freezer switch 126 of the operation panel 101 is pressed, the post cooling unit is immediately turned on and the post compressor 14 and the beater motor 45 are operated. However, at this time the pre-cooling unit
Do not turn it on. After this, by turning on the cooling unit,
The temperature of the rear temperature sensor 32 rapidly decreases as shown by the solid line in FIG. 19, and ice crystals of large ice particles are generated. Eventually, the temperature of the rear temperature sensor 32 is the first set temperature −1.7.
When the temperature reaches ℃, the post cooling unit turns off and the front cooling unit turns on. As a result, the temperature of the front temperature sensor 30 rapidly decreases this time, as shown by the broken line in FIG.
When the temperature of the pre-temperature sensor 30 reaches −3.0 ° C., the pre-cooling unit is turned off.

After that, after entering the cycle operation of no sale, the front temperature sensor
The temperature of 30 repeats periodic fluctuations between -2.9 ° C and -3.0 ° C due to natural heat radiation of the cooling cylinder 9 and ON / OFF operation of the pre-cooling unit. At this time, the temperature of the rear temperature sensor 32 is affected by the temperature of the front temperature sensor 30 and gradually fluctuates below -1.7 ° C.

By the way, a heater is integrally incorporated in the front temperature sensor 30 and the rear temperature sensor 32, and when the ice cream shake sale is started and the mix is extracted, the temperature rise accompanying the supply of the mix is considered in consideration of that. To turn on the cooling unit early, turn on the heater built into the temperature sensor for a short time. As a result, the temperature of the rear temperature sensor 32 rises regardless of the temperature of the front temperature sensor 30, and the set temperature-1.
After the temperature exceeds 4 ° C, the post cooling unit turns on again. After this, the temperature of the rear temperature sensor 32 is lowered by turning on the cooling unit,
At this time, the temperature of the front temperature sensor 30 is already in the specified temperature range, and the temperature of the rear temperature sensor 32 reaches the second set temperature −1.5 ° C. in the rear cooling unit in order to prevent the effect of overcooling the mix. When it does, it turns off.

Thus, while the post-cooling unit is operated to a lower temperature during the initial cooling, the post-cooling unit is stopped at a temperature slightly higher than that at the time of sale, and the temperature of the post-temperature sensor 32 is set to the above-mentioned FIG. By controlling as shown, the ice crystal can be generated by the initial cooling, and the ice cream shake having the desired hardness can be extracted while maintaining the state during the subsequent sales.

After cooling the mix by pressing the freezer switch 126 on the operation panel 101, the carry switch 12
Adjust the amount of flavor added to the mix by pressing 7. That is, as shown in FIG. 5, the flavor tube 77 is provided for each flavor from the mix passage 62 of the fraser door 11.
And pull out one to put the tip into the graduated cylinder. Next, the carry switch 127 is pressed, and the cancel switch 111 of the operation panel 100 is pressed to initialize the weight detection. Next, when the automatic switch 112 is pressed, the flavor pump 10 at the pressed position operates for a certain period of time, and the flavor is extracted to the graduated cylinder. By measuring this flavor amount, it can be determined whether or not it is an appropriate amount. If it is not an appropriate amount, the volume amount can be set to an appropriate amount by adjusting the volume 135 and adjusting the rotation speed of the flavor pump 10 in the automatic mode.

In this way, for each cylinder of the operation panel 101, the operation switches 121 to 127 provided on the operation panel 101.
By pressing in sequence, all the preparation operations of the ice cream shake manufacturing apparatus before opening the store are completed.

Next, the ice cream shake selling operation during opening is performed by placing the paper cup 81 on the cup table 80 and pressing the automatic switch 112 or the manual switch 113 on the operation panel 100. That is, when the automatic switch 112 is pressed, the solenoid 70, the spinner motor 74, the flavor pump 10, and the beater motor 45 operate simultaneously. The solenoid 70 opens the valve 64 in the freezer door 11 via the lever 66 to release the mix and at the same time mixes the flavor supplied by the flavor pump 10 and mixes it by turning the spinner motor 74. The mixed mix drops into the cup 81, and its weight is detected by the weight detector 83, and a signal is output at a constant amount, and the solenoid 7
Stop 0, spinner motor 74, flavor pump 10, beater motor 45. At this time, the solenoid 70 is stopped later than the flavor pump 10 in order to discharge the mixed mixture of flavors in the passage of the freezer door 11.
This is to prevent the previous flavor from entering there when the next different flavor is extracted.

In this ice cream shake automatic extraction operation,
There is a difference in the weight of the paper cup 81, the cup table 80
If a mix or the like adheres to and the weight changes, the weight of the mix in the paper cup 81 changes. In order to prevent this and always extract a specified amount of ice cream shake, in this embodiment, when the paper cup 81 is placed on the cup table 80 and the automatic switch 112 is pressed, the control block 140A in FIG. Sets the weight of the sum of the cup table 80 and the paper cup 81 to 0 and starts the extraction control.

That is, the control block 140A first sets the total weight of the ice cream shake to be extracted into the paper cup 81 to W ₂ , and stops the extraction of the flavor immediately before the completion of the extraction, and the mix passage 62
These are stored as the flavor stop weight W ₁ which is the amount obtained by subtracting the mix amount (hereinafter referred to as the dot adjustment amount) extracted to remove the remaining flavor from the total weight W ₂ .
Next, the control block 140A includes the flavor pump 10 and the beater 6
0, solenoid 70, spinner motor 74, etc. are turned on to start extraction control of the ice cream shake. That is, the extracted weight is monitored based on the signal obtained from the operational amplifier 85 of the weight detector 83, and when the flavor stop weight W ₁ is reached _first , the flavor pump 10 is stopped to supply the flavor to the mix passage 62. Stop. Next, when the extraction weight reaches the total weight W ₂ , the solenoid 70 and the spinner motor 74 are turned off to complete the extraction of the ice cream shake. As a result, a prescribed amount of ice cream shake is always extracted from the paper cup 81.

If the automatic switch 112 is pressed while the paper cup 81 is not placed on the cup table 80, the ice cream shake extraction operation must be avoided. Therefore, it is necessary to judge whether or not there is the paper cup 81 on the cup table 80. In this embodiment, this judgment is made based on the same signal from the weight detector 83 as in the extraction weight measurement. That is, before the automatic switch 112 is pressed, the carry switch 127 is pressed while the paper cup 81 is not placed on the cup table 80, and the cancel switch 111 of the operation panel 100 is pressed, whereby the control block 1
40A remembers the weight at this time as 0. Meanwhile, a paper cup 8
Since the weight of 1 is about 10 g, the case without the paper cup 81 is defined as 6 g or less, and if it is 6 g or less, extraction becomes impossible. If the weight of the cup is 180g or more (mix is already in the cup), the extraction becomes impossible.
That is, the control block 140A uses the cup weights of 6 g and 18
If 0g is stored and the automatic switch 112 is pressed,
It is determined whether the weight detected by the weight detector 83 is between 6 g and 180 g, and if there is, a paper cup 81 is placed on the cup table 80.
Is set, the detected weight is reset to 0, and then the above-mentioned extraction control is started. However, if there is not, it is considered that the paper cup 81 is not set and the extraction control is not started.

As described above, in the present embodiment, the single weight detector 83 performs detection of the ice cream shake extraction weight and desired detection of the paper cup 81 without providing a separate sensor.

Flow charts of the above-described mix cooling operation, flavor amount adjustment, and ice cream shake automatic extraction operation are shown in FIG. 20, FIG. 21, and FIG.

FIG. 20 is a flow of cooling, flavor adjustment, and extraction, and FIG. 21 is a flow of automatic extraction, which are executed by the control block 140A in FIG. On the other hand, FIG. 22 is a cooling and extraction routine, which is executed by the control block 140B in FIG. Also, the timing of the cooling operation at this time is shown in FIG. 23, and the operation timing of the flavor adjustment is shown in FIG.

In these figures, the BLOW valve 78 is kept open and it is confirmed that the mix pump 8 has stopped. At this point, the mix container is newly replenished with mix. After this, the BLOW valve 78 is closed. (In terms of timing, after that, the process shifts from step 418 to 422 in the above-described mix feed routine.) Note that the stop of the mix pump 8 is confirmed before entering this routine.

First, on the control block 139A side, in processes 501 to 504, it is determined whether or not each operation is being executed. When the cooling switch 126 is pressed, the processings 505 and 506 are executed, and if it is the first time in the processing 506, the processings 507 to 510 are executed. When the process 507 is executed on the control block 140A side, the control block 140B executes processes 573 and 574. The control block 140A uses the process 510 to process 585 or 591 or 603 or 60.
By executing 9, processing 511 or 512 is executed, and the processing shifts to processing 516. When the process shifts to the processes 505 and 513 and cooling is not being executed, the process shifts to the process 516. If the calibration switch 127 is pressed in process 516, the process proceeds to process 517,
If the switch 127 is pressed for the first time, the process 518 is executed, and if it is pressed for the second time, the process 520 is executed. On the other hand, if the switch 127 is not pressed, the process 519 is executed. In process 519, if the calibration lamp is lit, it is regarded as being executed. If the cancel switch is pressed in process 521, process 522 is executed, and if the calibration lamp is lit in process 522, process 522 is executed.
Run 523. In the process 523, the basic weight of the balance (weight with the cup holder set) is stored. Process 525
When the cylinder switching SW (R-Dual-L) 136 is viewed at, the process 527 is executed if the SW 136 is Dual and the controller is not right (R), and the process 567 is executed otherwise.
In processing 527 and 528, it is determined whether or not the other flavors 2, 3 and 4 are performing extraction, and if extraction is in progress, processing 56
2; otherwise, perform steps 529-531,
The flavors are calibrated in processes 531 and 532 or processes 531 and 534. If the calibration is not performed in the process 530, it is determined in each of the processes 535 to 539 whether or not each operation is in progress. If NO, the process 540 is executed, and if YES, the process 562 is executed. . In process 540, if W ₁ and W ₂ are not calculated, process 541
~ 543 is executed, the presence or absence of a cup is determined in the process 543,
If there is no cup, the process 549 is executed to notify the error, while if there is a cup, the process 544 is executed to determine whether the weight is over. If it is also over here, process 54
Run 9 If YES in process 544, processes 545 to 548
Run up to. If W ₁ and W ₂ are calculated in process 540, processes 550 to 556 are executed. When the cancel switch 111 is pressed in process 550, processes 560 and 561 are executed, and the extraction is stopped. In the process 553, if the cup is removed during the extraction, the processes 549, 550, 561 are executed, and the extraction is stopped. In process 555, if the measured weight exceeds W ₁ , processes 557, 558, and 559 are executed. In process 588,
When the measured weight exceeds W ₂ , the processes 560 and 561 are executed and the extraction is completed. Processes 562 and 563 are similar to the processes 527 and 528 described above. The process 564 is similar to the flavor 1 automatic extraction routine of the processes 529 to 561 described above. In the processes 565 and 566, if the cylinder is single, the process moves to the process 567. Processes 567 and 568 are similar to the processes 527 and 528 described above. Process 569 is the flavor 1 from processes 529 to 561 described above.
It is similar to the automatic extraction routine.

On the other hand, when the control block 140A executes the above-mentioned processing 527, the control block 140B executes the processing 573 to 574. At this time, when the cooling switch 126 is pressed, the mix temperature is naturally high, so the processing 574 and 575 are executed. , 576, 588,
590 and 605, and if the cylinder pressure is "H",
Processes 610 and 611 are executed, and if “L”, processes 606 and 607 are executed. The ATR Mg VALVE in treatments 607 and 611 is a valve that is opened / closed to mix an appropriate amount of air into the mix.

The control block 140B executes the processes 577 and 578 when the mix temperature decreases to the first set temperature (−1.7 ° C.) for producing the ice crystal in the process 576, and executes the processes 578 to 589 at this point. In the process 578, when the mix temperature falls to the set temperature, the process 579 is executed, the pull-down ends, and the process 574 is YES from this point.
Only run. After the pull-down, it does not wait for 3 minutes, so processing 599 and 612 are executed, and after 3 minutes, processing 59
Run 9,600. Immediately after this, 30 seconds have not passed, so processing 600, 608 is executed, and after 30 seconds, processing 600, 601,
Run 602. Processing 602 is processing 60 according to the result of processing 601.
3, 604 or processing 609 is executed. In process 580, when process 548 is executed on the control block 140A side, processes 582 and 58 are executed.
3, 584 is executed, and in process 584, process 585 or 591 is executed depending on the states of the compressors before and after. And continue processing
Execute 586 and 587. Note that the processes 582 to 586 are executed,
When shifting to NO in process 586, process 560
Is executed, the processes 580 and 581 are executed, but the process 587 is executed.
Execution of processes 582 to 586 is guaranteed as long as is not executed. Immediately after the execution of the process 587, the process is not waited for 3 minutes, so the process is executed as the processes 599 and 612.
Run 9,600. Immediately after this, 30 seconds have not passed, so processing 600, 608 is executed, and after 30 seconds, processing 600, 601,
Run 602. Processing 602 is processing 60 according to the result of processing 601.
3, 604 or processing 609 is executed.

The operation of the ice cream shake manufacturing apparatus during opening is described above.
It is necessary to collect the mix inside and sterilize and wash the flavor line and mix line. The automatic cleaning hot water sterilization method will be described below.

First, in order to dissolve and discharge the mix in the cooling cylinder 9, the steri switch 128 of the operation panel 101 is pressed. When this switch is pressed, the beater motor 45, the four-way valve 21, and the post-compressor 14 operate, and as shown in FIG. 3, the heat pump action that causes the heat medium to circulate through the path indicated by the broken line causes the cooling pipe 25 to cool the cooling cylinder 9 Heat to melt the mix inside. The front sensor 30 judges that the mix has melted at 5 ° C, the rear compressor 14 and the four-way valve 21 are stopped, the timer 2 is operated at the same time, the mix pump 8 and the air solenoid valve.
155, the solenoid 70 is operated for a certain time, and the mix in the cooling cylinder 9 is discharged.

Then, when the second steri switch 129 is pressed, the mix pump 8 and the air solenoid valve 155 are operated, and the mix tank 5
The rinse liquid prepared inside is supplied into the cooling cylinder 9. By turning off the pressure switch 160, the mix pump 8,
The air solenoid valve 155 is stopped, the timer 2 is operated at the same time, and the beater motor 45 and the solenoid 70 are operated for a fixed time. As a result, the rinse liquid in the cooling cylinder 9 is discharged. The operations up to this point are performed a total of three times, and the rinse liquid supplied into the cooling cylinder 9 at the fourth time starts the heat pump operation by the operations of the rear compressor 14 and the four-way valve 21 to raise the temperature. After that, the temperature is maintained at a predetermined temperature for a certain period of time by the sterilization monitoring timer, and then the rinse liquid is discharged and the process is completed.

The procedures of the automatic cleaning and hot water sterilization treatment described above are shown in FIGS. 25 (a), (b), and FIGS. 26 (a)-(d). Of these, the processing shown in FIG. 25 is performed by the control block 140A,
The processing shown in FIG. 26 is executed by the control block 140B. Further, FIG. 27 and FIG. 28 show the operation timing of the main equipment when executing the processing of FIG. 25 and FIG.

As shown in FIG. 25, the control block 140A executes the processes 701-7.
04 is executed to determine whether or not the first steri switch 128 is pressed on condition that flavor line cleaning, mix line cleaning, cooling calibration, and mix feed are not being executed (705). Since this first steery switch is a toggle switch, when it is pushed for the first time (N in 706), it transmits a "sterery 1 permission signal" to the control block 140B (707). Then turn on the Steri 1 lamp and turn off all other blinking LEDs such as Steri 2, Flavor Line Wash, Mixline Wash, Cooling Calibration, Mix Feed, etc. (7
08, 709). Then, the "2-minute WAIT information" signal is fetched from the control block 140B (710) and the presence or absence thereof is judged (71).
1).

At this time, since the control block 140B has not output the “two-minute WAIT information”, the process 711 is passed N. Further, since the extraction solenoid 70 is also OFF, the process 712 is set to N.
Pass by and the Steri 2 switch is OFF, so process 71
Pass 3,714 at N and become END.

On the other hand, the control block 140B, which receives the "steri 1 permission signal" from the control block 140A, detects the presence of the "steri 1 permission signal" as shown in FIG.
A flag indicating that processing is in progress is set (716).
Process 717 passes by N and turns on the beater motor 45 (71
8). At this time, the temperature inside the cooling cylinder 9 is low and the processing is performed.
At N, the post compressor 14 and the four-way valve 21 are turned on (720, 721), and the cooling cylinder 9 is heated by the heat pump action. After that, the temperature in the cooling cylinder 9 is measured (722) and it is judged whether or not it is the temperature raising agent (723). At this time, since the temperature has not yet been raised, the sled 723 is passed by N.
At this time, both the mix pump 8 and the air solenoid valve 155 are O.
Since it is FF, in processing 724 and 725 END without doing anything
The control block 140B repeatedly executes this process, and
This routine is entered from START, the heat treatment of the cooling cylinder 9 is executed, and the internal mix is thawed. As a result, when the temperature inside the cooling cylinder rises to about 5 ° C., the process 723 becomes Y and the temperature raising agent flag is set (7
26), passes through processing 724 and 725 and becomes END.

Next time you enter this routine from START again,
If the process 719 is Y, the rear compressor 14 and the four-way valve 21 are turned off (727, 728), and the heating of the cooling cylinder 9 is completed. At this time, 2 minutes have not passed yet (N of 729), 140
"2 minute WAIT in progress information" is output to A and the timer count for measuring the time is started (731).
At this time, the internal pressure of the cooling cylinder 9 is "H" (Y of 732), the mix pump 8 and the air solenoid valve 155 are left as they are (733, 734), and END is set.

On the other hand, when the control block 140A receives this "two-minute WAIT information" as shown in FIG.
Hold that state for 5 seconds, and after 15 seconds have passed (Y of 735),
To discharge the mix in the cooling cylinder 9, the solenoid 70 is turned on (736).

In the control block 140B, Y in processing 715 to 719, 727 to 734.
Repeating the above, the timer counter monitors for 2 minutes, but if the pressure in the cooling cylinder 9 drops as the mix is discharged during that time (N of 732), the mix pump 8 is turned on.
(737), the air solenoid valve 155 is turned on (738), and air is sent into the cooling cylinder 9 to facilitate discharge of the mix. When 2 minutes have passed (Y of 729), end processing such as ending steri 1 and setting a flag is executed (73
9) After confirming that the rear compressor 14 and the four-way valve 21 are turned off (740, 741), the "2 minutes WAIT information" output to the A board is stopped (742).

In the control block 140A, as a result of the disappearance of the "2 minutes WAIT in progress information", the step 1 is passed through in N and the step 712 is passed in Y to notify that the step 1 is completed, so that the step 1 lamp is changed to blinking (743). , Stop transmitting the "steri 1 permission signal" to 140B (744). Also, the solenoid 70 is turned off (745).

When the operator knows the end of the processing by blinking the sterley 1 lamp and either presses the first sterley switch 128 again to input the confirmation or presses the first sterley switch 128 during the execution of stery 1, the control block 140A causes the process 706 Pass Y at and turn off the Steri 1 lamp (746).

In this way, after finishing the processing of the steri 1 for melting and discharging the mix in the cooling cylinder 9, the operator prepares the rinse liquid in the mix tank 5 for cleaning the inside of the cooling cylinder 9, and then the second Steri Switch 129
Press.

Then, in the control block 140A, the process 705 and the process 747 are passed through N, and the “steri 2 permission signal” is transmitted to 140B via Y of the process 713 and N of the process 748 (749). Then 140
Although the "sterilization abnormality information" is input from B (750), since the sterilization abnormality has not occurred at this time, the process 751 is passed through N and the Steri 2 lamp for notifying the start of Steri 2 is turned on (753). Also, from the control block 140B, "2 minutes WAIT
Enter "Medium Information" (754), but at this time "2 minutes WAI
There is no "T information" input (N of 755), and the extraction solenoid 70 is OFF (N of 756).
Since the count value of the counter that counts the number of times N and OFF is still 0, the process 757 is followed by N to enter END.

On the other hand, in the control block 140B, when the "sterry 2 permission signal" is received from the control block 140A, the process from N in process 715 to 7
The process proceeds to N of 58-1 and Y of 758-2, and sets the flag of in-process Steri 2 (759). Next, not at the end of Steri 2 (N of 760), since there is nothing in the cooling cylinder 9 (N of 761), the mix pump 8 is turned on (762), and the air electromagnetic body 155. Is turned off (763) and the beater motor 45 is turned on (764). After that, the hot water solenoid valve 50 is turned off.
(765), Hot water heater 48 is turned off (766), Rear compressor 14
OFF (767), four-way valve 21 OFF (768) to reach END.

By this series of processes, the rinse liquid is supplied from the mix tank 5 into the cooling cylinder 9, and when the internal pressure rises to "H", the process 761 is eliminated by Y and the cleaning counter is incremented by 1 through N of the process 769 ( 770). Also, turn off the mix pump 8 (771) and turn off the air solenoid valve 155 (77
2) Then, the supply of the rinse liquid to the cooling cylinder 9 is stopped. The beater motor 45 is turned ON (774) from N in the processing 773, and "2 minutes WAIT information" is output to the control block 140A (77).
Five).

As a result, the control block 140A passes the process 755 at Y, and after 15 seconds (Y at 776), the extraction solenoid 70
Turn on (777).

When 2 minutes have passed since the rinse liquid was supplied to the cooling cylinder 9, the control block 140B passed the process 773 at Y, performed the process required for the preparation for the next cleaning (778), and output it to the control block 140A. The output of "information during WAIT for 2 minutes" is stopped (779).

Due to the stop of the output of the “information for 2 minutes in WAIT”, in the control block 140A, the process 755 is passed by N, and the extraction solenoid 70 is turned ON at this time, so the process 756 is passed by Y,
The solenoid 70 is turned off (780). Next, in order to count the number of times of rinsing, that is, the number of times the solenoid 70 is turned on, the counter value is incremented by 781 (781), and N of processing 757 is returned to END.
Leading to. This completes the first washing of the mix line.

In the control block 140A, N of processing 701 to 705, N of 747, N of 713, Y of 714, and 749 to 757 are repeatedly executed to repeatedly execute "2 minutes WAIT" from the control block 140B.
Wait for input of "Medium Information".

On the other hand, in the control block 140B, N of processing 715, 758-1
By executing the loop of N, 758-2, and 759 to 768, the rinse liquid is supplied again from the mix tank 5 in the cooling cylinder, and the second cleaning of the mix line is started.

When such a washing process of the mix line is repeated three times, and the rinse liquid of the cooling cylinder 9 is supplied and the internal pressure becomes “H” at the fourth time, the control block 140B proceeds from the process 761 to the process 769. Pass Y and beater motor 45
Turn on (782).

At this time, the heat sterilization process has just started and the inside of the cylinder has not been heated.
The temperature inside the cylinder is measured in process 788, but nothing is done in processes 786 and 787.
After passing 789 through N, in process 760, the rear compressor 14 and the four-way valve 21 are operated as a heat pump so that the temperature inside the cooling cylinder 9 becomes 80 ° C., and ON / OFF control of them is performed. Then, the processes 791 and 792 do nothing and become END.

In this way, in the control block 140B, the process 715 is 758-1,
By repeatedly executing the processing routines of 758-2, 759-761, 769, 782-792, the rinse liquid in the cooling cylinder is heated to 80 ° C. and heated.

As a result, if the device is in the normal state, first, the temperature rise in the cylinder is completed (Y of 789), and the temperature rise flag in the cylinder is set (793). Next, when the process 784 is executed, since the temperature inside the cylinder has already been raised, the process passes through Y and shifts to the process 794 to start time counting. Also, turn on the hot water solenoid valve 50 (795) and turn on and off the electric water heater 48.
The shaft seal part 46 of the cooling cylinder 9 is heated and controlled so that the temperature of the hot water supplied to the shaft seal part is controlled to a predetermined temperature (796).

In addition, the control block 140B causes the post-compressor 14 and the four-way valve 21 to function as a heat pump, and by its ON / OFF heating control, accumulates the time during which the temperature in the cooling cylinder is 78 ° C. or higher (797).

When the device is normal, when the cumulative time has passed 30 minutes (79
8), the temperature rises to 75 ° C or higher (N in 799), and the sterilization process ends (800).

However, when the ON / OFF heating control of the rear compressor 14 and the four-way valve 21 is started and the temperature does not rise even after 30 minutes have elapsed, the process proceeds from N in process 784 to Y in process 785, and the sterilization process is abnormal. The end process of 2 is performed (801), and "sterilization process abnormality information" is output to the control block 140A (802). Even if the temperature in the cooling cylinder rises to 80 ° C due to the heating control, the sterilization abnormality processing 801 or 802 is executed even if 40 minutes have elapsed before the cumulative time of 78 ° C or more reaches 30 minutes (Y in 794). To do. Furthermore, the temperature inside the cooling cylinder is controlled to 80 by heating control.
The temperature is raised to ℃, and the accumulated time of 78 ℃ or more is 30 minutes before 40 minutes have passed.
Even after a lapse of minutes, the sterilization abnormality processing 801 and 802 is performed even when the temperature after the lapse of time is 75 ° C. or lower.

When such sterilization process abnormality occurs, the control block
On the 140A side, the process 751 is passed through Y, the steri 2 lamp is turned off (803), and the transmission of the steri 2 permission signal output to the control block 140B is stopped (804).

On the other hand, when the sterilization process is completed normally, the control block 140B passes the process 783 through Y, the process pump N through N, the mix pump is turned on (806), the air solenoid valve is turned on (807), and the cooling cylinder is cooled. Put air in. Also, the control block 14
“2 minute WAIT information” is output to 0A (808), and the hot water solenoid valve 50
Is turned off (809), the heater of the electric water heater 48 is turned off (810), the rear compressor 14 is turned off (811), the four-way valve 21 is turned off (812), and END is reached.

The control block 140A receives this "2 minute WAIT information", passes through the process 755 at Y, and 15 seconds after that (776
Y), the solenoid 70 is turned on (777).

Then, after 2 minutes have passed, the control block 140B starts processing.
Passing 805 with Y, stopping the transmission of "2 minutes WAIT information" to the control block 140A (813), performing the Steri 2 end processing such as setting the Steri 2 end flag (814), and turning off the beater motor 45. (815), turn off the mix pump (816), and turn off the air solenoid valve (817).

In the control block 140A, the reception of the "2 minutes WAIT information" disappears, and the solenoid is operated from N in process 755 to Y in process 756.
Turn off 70 (780), count +1 (781),
When the count value becomes 4, the process 757 is passed through Y, the steri 2 lamp is turned off (803), and the control block 1
The transmission of the "sterry 2 permission signal" to 40B is stopped (804).

As a result, in the control block 140A and thereafter, the processing 701
Cycle through a routine that passes N through 705, 747, 713, and 714. On the other hand, in the control block 140B, processing 715, 758-1,
The routine that passes N between 758-2 and 818 is cycled to enter the standby state.

(G) Effect of the Invention As described above, according to the present invention, in a frozen dessert manufacturing apparatus provided with means for supplying hot water during washing and sterilization in a cylinder that stirs and cools frozen dessert ingredients, and drains hot water after a predetermined time, While exchanging heat with the cylinder, the heat exchange means for heating or cooling the cylinder by reversing the flow direction of the heat medium using the four-way valve, and the temperature detecting means for detecting the temperature in the cylinder During the cleaning and sterilization, the heat exchanging means is heated, and the heating operation of the heat exchanging means is controlled based on the temperature detected by the temperature detecting means and a preset temperature to supply hot water into the cylinder. Since it is provided with a heating control means for maintaining the sterilized hot water at the sterilization temperature, means for heating the cylinder when cleaning and sterilizing the inside of the cylinder, and means for cooling the cylinder during frozen dessert production, Since they are realized by the same heat exchanging means, there is an effect that the device can be downsized and the device cost can be reduced. Also, prior to washing and sterilizing, frozen desserts in the cylinder are melted and automatically collected.Therefore, when hot water is supplied during washing and sterilization, excess frozen desserts etc. do not remain in the cylinder, so washing and sterilization is effective. The effect that it can be obtained is also obtained. Further, before heating the hot water in the cylinder, the hot water is supplied into the cylinder a plurality of times to discharge the hot water, so that the washing and sterilization can be performed in a state where the frozen dessert and the like remaining in the cylinder is almost removed. The effect that cleaning and sterilization can be effectively performed is also obtained. Further, since the hot water is supplied a plurality of times, it is possible to preheat the cooling cylinder with the hot water. Also,
Since the hot water in the cylinder accumulates the time within the predetermined sterilization temperature range, it is possible to appropriately judge that the necessary sterilization work has been completed based on the accumulated time, and the cleaning and sterilization work can be performed efficiently. You also get the effect.

[Brief description of drawings]

FIG. 1 is an explanation of an ice cream shake manufacturing apparatus showing an embodiment of the present invention. FIG. 1 (a) is a side view showing the arrangement configuration of essential parts of the device, FIG. FIG. 2 is an explanatory view of a piping connection configuration of mix, flavor and hot water supplied to the cooling cylinder of FIG. 1, FIG. 3 is an explanatory view of a heating medium piping path configuration for cooling and heating the cooling cylinder, and FIG. 4 is its cooling. Sectional view showing the structure of the ice cream extraction port of the cylinder and the weight measuring section, FIGS. 5 and 6 are explanatory views of the connection state of the flavor tube connected to the ice cream extraction port of the cooling cylinder, and FIG. 7 is the weight measurement. Circuit configuration diagram of a detector for extracting a signal, FIG. 8, FIG. 9 and FIG.
FIG. 10 is an explanatory diagram of a display operation panel arranged in front of the ice cream shake making apparatus of FIG. 1, and FIG. 11 is a circuit configuration diagram of the right system portion of the control unit of the ice cream shake making apparatus of FIG. FIG. 12 is a flow chart showing the processing operation of flavor line cleaning by the control unit, and FIG. 13 is a time chart of the flavor line cleaning processing operation.
14 and 15 are flowcharts showing the processing operation of the mix line cleaning, FIG. 16 is a time chart of the processing operation of the mix line cleaning, and FIGS. 17 (a) and 17 (b) are flowcharts showing the processing operation of the mix feed. , Fig. 18 is a time chart of the mix feed processing operation,
Fig. 19 is a temperature characteristic diagram showing the cooling operation of the front and rear parts of the cooling cylinder, Fig. 20, Fig. 21 and Fig. 22 are flowcharts showing mix cooling, flavor measurement and automatic extraction processing operation, and Fig. 23 is mix cooling. Operation time chart, Fig. 24 is a flavor measurement operation time chart, Fig. 25
Figures (a) and (b) and Figures 26 (a) to (d) are flow charts showing automatic cleaning and hot water sterilization processing operations, and Figures 27 and 28 are time charts of the automatic cleaning hot water sterilization processing operation. is there. 5 ... Mix tank, 8 ... Mix pump, 9 ...
Cooling cylinder, 14 …… post compressor, 15 …… post condenser, 21 …… four-way valve, 140A, 140B …… control block.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ken Aoki 2-18, Keihan Hon-dori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Inventor Katsuhiko Hoshi 2--18-3, Keihan Hondori, Moriguchi City, Osaka (56) References JP-A-61-282041 (JP, A) JP-A-53-41471 (JP, A) JP-B-54-37223 (JP, B2)

Claims (4)

(57) [Claims] 1. A frozen dessert manufacturing apparatus comprising means for supplying hot water during washing and sterilization and discharging hot water after a predetermined time in a cylinder for stirring and cooling frozen dessert raw materials, while performing heat exchange with the cylinder and a four-way valve. The heat exchange means for heating or cooling the cylinder by reversing the flow direction of the heat medium using, the temperature detecting means for detecting the temperature in the cylinder, and the heat exchange means for heating and sterilizing at the time of cleaning and sterilization. Along with, the heating control means for controlling the heating operation of the heat exchange means based on the temperature detected by the temperature detection means and the preset temperature, and for maintaining the hot water supplied in the cylinder at the sterilization temperature, An apparatus for producing frozen desserts, which is characterized by comprising: 2. A means for automatically heating the heat exchange means to heat and melt the frozen dessert in the cylinder prior to supplying hot water in the cylinder to automatically recover the frozen dessert. Frozen dessert manufacturing device described. 3. The frozen dessert manufacturing apparatus according to claim 1, further comprising means for supplying hot water to the cylinder a plurality of times and discharging the hot water before heating the hot water supplied to the cylinder. 4. A frozen dessert manufacturing apparatus according to claim 1, further comprising a cumulative timer for accumulating the time when the temperature detected by said temperature detecting means is in the sterilization temperature range when heating the hot water in said cylinder. .