JPS61282035A - Ice cream freezer - Google Patents

Abstract

PURPOSE:To enable the hygienic maintenance of a dispenser, by using a structure to enable the cleaning and sterilization of the channel of a dispenser from the opening means to the dispensing port with hot water without recovering the liquid ice cream mix in the cooling chamber. CONSTITUTION:The ice cream freezer is furnished with the cold controlling means 121 to control the operation of the cooling means of a refrigeration system in a manner to cool the liquid ice cream mix in the cooling chamber in semi-frozen state, the heating means 122 to heat and sterilize the liquid ice cream mix in the cooling chamber, and the cold-keeping controlling means 123 to control the operation of the cooling means in a manner to cool the liquid ice cream mix in the cooling chamber to a low-temperature liquid state. When the cooling switch means 113 is operated, the hot-water supplying means starts the supply of hot water, stops, the supply after a definite period and starts the cooling of the mix by the cold controlling means. When the cold-keeping switch means 115 is operated, the cooling operation is stopped, the sterilization by the heating means is started, and the cold-keeping operation by the cold- keeping means is started after stopping the sterlization operation.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a frozen dessert manufacturing apparatus for manufacturing frozen desserts such as ice cream shakes and soft ice creams.

(b) Conventional technology As a conventional cleaning device for frozen dessert manufacturing equipment, for example,
Publication No. 4-37223 discloses that tap water is heated to a high temperature in a tank with temperature and water volume regulation within the machine body, and a predetermined amount of the hot water is supplied to the raw material tank and freezing cylinder during cleaning and sterilization, and automatic regulation is performed. A method for cleaning and sterilizing a continuous soft ice cream manufacturing machine is disclosed, which comprises opening a gate plunger of a product takeout device after a predetermined time period has elapsed to drain hot water after cleaning and sterilization.

(c) Problems to be Solved by the Invention According to this prior art, the soft serve ice cream in the freezing cylinder is collected before the day's sales start or after the day's sales end, and then the raw materials are collected. The tank and freezing cylinder are cleaned and sterilized with boiling water, but by opening the gate plunger and draining the hot water after cleaning and sterilization, it is somewhat expected that the soft serve ice cream that has adhered to the dispenser will be washed away at the same time. can. However, the extractor is the part that requires the most attention in terms of hygiene management, and when draining dirty hot water from the extractor, it is impossible to expect a sufficient cleaning effect from the extractor. isn't it.

Furthermore, currently, the soft serve ice cream collected from the freezing cylinder is stored in the refrigerator and reused the next day, which poses a major hygienic problem. Therefore, the present invention cleans the passage of the extractor with boiling water without recovering the cooled frozen dessert concentrate from the cooling room, further sterilizes the cooling chamber and the frozen dessert concentrate in the room, and after sterilization, the cooling room can be used as a refrigerator. To provide a frozen dessert manufacturing device which is capable of storing a frozen dessert stock solution in a cooling room with a function.

(d) Means for Solving the Problems The present invention provides a take-out device in front of a cooling chamber for cooling the supplied frozen dessert stock solution, and opens a passage formed in the take-out device by operating an opening/closing means to open the take-out device. In a frozen dessert manufacturing apparatus for externally supplying a suitably cooled frozen dessert stock solution, the cooling switch means, the cold storage switch means, and a tank for supplying hot water to the passageway leading from the opening/closing means to the outlet to clean the passageway. a hot water supply means, a cooling control means for controlling the operation of the cooling means of the refrigeration system so as to cool the frozen dessert concentrate in the cooling chamber to a semi-frozen state, and a heating means for heating and sterilizing the frozen dessert concentrate in the cooling chamber. , providing a cold storage control means for controlling the operation of the cooling means so as to cool the frozen dessert concentrate in the cooling chamber to a low-temperature liquid state, and when the cooling switch means is operated, a hot water supply operation based on the hot water supply means is started; When a predetermined time has elapsed, the hot water supply operation is stopped and a cooling operation based on the cooling control means is started, and when the cold storage switch means is operated, the cooling operation is stopped and a sterilization operation based on the heating means is started; This frozen dessert manufacturing apparatus is configured to start a cold preservation operation based on the cold preservation control means after the sterilization operation is stopped.

(E) Function In the above configuration, when the cooling switch is pressed, the hot water supply means is activated to supply hot water from the opening/closing means to the passage of the takeout device leading to the outlet, and the passage is cleaned and sterilized by the hot water.

When such a hot water supply operation is performed for a predetermined period of time, the hot water supply operation is stopped and the hot water supply operation is started. By this cooling operation, the frozen confectionery stock solution in the cooling chamber is cooled to a semi-frozen state, and this can be completely supplied from the take-out device. On the other hand, when the cold preservation switch is pressed, the frozen dessert stock solution in the semi-frozen state in the cooling chamber is heated and sterilized by the heating means, and the sterilized frozen dessert stock solution is kept cold in a low-temperature liquid state.

(F) Example An example of the present invention will be described below using an ice cream shake manufacturing apparatus. Figure 1 shows a system configuration diagram of the present invention. (1) is a mix tank that stores liquid ice cream mix, and the top surface is closed by a removable lid (IA) to replenish the mix. . (2) is an electrode type mix out detection device that detects the mix amount in mix tank 1), (3A), (3B)
, (3C) and (3D) are syrup tanks for storing different liquid syrups such as chocolate, strawberry, vanilla, yogurt, etc.
As shown in Figure 3A), an electrode-type syrup exhaustion detection device (4) is installed in all syrup tanks.

(5) is a cooling chamber in which a frozen dessert dispenser (6) is removably attached to the front and a mix inlet (5A) is provided at the rear. (7) is a compressed gas cylinder that stores compressed gas such as carbon dioxide gas or nitrogen gas.

The gas cylinder (7) is equipped with a primary pressure regulator (8) at its outlet, and the other end of the gas phase pipe (9), which has one end connected to the outlet of the regulator (8), is equipped with a secondary pressure regulator (8).
10) to the branch joint (11). Four wooden syrup suppression pipes (1) are installed at the four outlets of the branch joint (11).
Connect one end of 2A), (12B>, (12C) and (12D>), and connect the other end with a check valve (13A), (13B>,
(13C) and (13D) to the syrup tank (3
Connect to A), (3B), (3C) and (3D). Syrup tanks (3A), (3B), (3C) and (3D
) extending from the bottom of the syrup supply pipe (14A), (1
4B), (14C) and (14D) are connected to the extractor (6), and needle valves (15A), (15B), (15C) and (15D) for adjusting the syrup flow rate are installed on the upstream side. Connect the syrup supply solenoid valve (1
6A), (16B), (16G) and (16D) are connected.

Meanwhile, the mix in the mix tank (1) is transferred to the cooling room (5).
) A mix suction pipe (18) whose other end opens near the bottom of the mix tank (1) is connected to the suction side of the pump device (17) for supplying water to the cooling chamber. The mix supply pipe (19) connected to the rear inlet (5A) of (5) is connected, and the drive motor (17A) of the pump device (17) is connected to the mix supply pipe (19) to (5) is controlled by a pressure detection device (20) that indirectly detects the amount of mix in (5) by pressure. Furthermore, the air introduction pipe (21) that branches off from the mix suction pipe (18) and opens to the atmosphere is important for mixing air into the mix and producing an appropriate overrun. Note that (22) in the figure is a water heater for cleaning and sterilizing the inside of the takeout device (6), and the hot water supply pipe (22A) is connected to the takeout device (6) by using a funecta (23). Normally, the flow of hot water is shut off by a hot water supply solenoid valve (24).

Next, referring to FIG. 2, a systemized cooling system including cooling means for cooling the cooling chamber (5) will be described. The cooling system of the embodiment includes a front compressor (25), a rear air-cooled condenser (26), a double-pipe front water-cooled condenser (27) in which water passes through an inner tube and refrigerant passes through an outer tube (not shown in detail), and a front receiver. -Tank (28), pre-cooling solenoid valve (29), pre-expansion valve used as a pressure reducing device (
30), front evaporation pipe (31) and front akeemulator (
32) connected in a ring, a rear compressor (33), a rear air-cooled condenser (34), and a rear water-cooled condenser (35) having the same configuration as the front water-cooled condenser (27).
), rear receiver tank (36), rear cooling solenoid valve (37)
), a post-expansion valve (38) employed as a pressure reducing device, a post-evaporation pipe (39), and a post-accumulator (40) connected in an annular manner to form a post-cooling system.

Therefore, the pre-evaporation vibe (31) in the pre-cooling system
is wound around the front outer circumference of the cooling chamber (5), and a post-evaporation pipe (39) in the post-cooling system is wound around the rear outer circumference of the cooling chamber (5). As a result, the evaporation pipe is wrapped around almost the entire width of the cooling chamber (5), the front part of the cooling chamber (5) is independently cooled by the pre-cooling system, and the rear part of the cooling chamber (5) is cooled by the post-cooling system. Independently cooled. In addition, in the embodiment, the winding area of the post-evaporation pipe (39) is set to be approximately twice that of the winding area of the front evaporation pipe (31), but this is because the winding area of the front combustor 25) and the rear compressor (33) The ratio is determined in consideration of the capacity, etc., and is not necessarily limited to the ratios in the embodiments. In addition, the post-evaporation pipe (39) is not limited to a branched configuration, but may have a winding configuration with a single wooden vibrator. It may be. Furthermore, the present invention is not limited to the vibrator winding method, but any method that constitutes a pre-evaporation region and a post-evaporation region may be used.

In addition, as devices configured in relation to the pre-cooling system, a pre-air cooling condenser (26) and a pre-water cooling condenser (26) are also included.
7), and a front water saving valve (42) that responds to the condensing pressure and opens when the pressure reaches a predetermined high pressure. A rear blower (43) that cools both the air-cooled condenser (34) and the rear water-cooled condenser (35), and a rear water-saving valve (44)
It is equipped with Furthermore, the pre-cooling system has one end connected between the front humbrezzar (25) and the front air-cooled condenser (26), and the other end connected to the front expansion valve (30) and the front evaporation vibrator (31).
a front bypass pipe (45) connected to the inlet side of the front hot gas solenoid valve (45) connected to the bypass pipe (45);
6) is attached to the post-cooling system, one end is connected between the post-compressor (33) and the post-air cooling condenser (34), and the other end is connected to the post-expansion valve (38) and the inlet of the post-evaporation pipe (39). a bypass pipe (47) connected to the side, and a hot gas solenoid valve (48) connected to the bypass pipe (47).
) is attached. And these bypass pipes (45)
The configuration of (47) and solenoid valves (46) and (48) is as follows:
It is effectively used during sterilization, which will be described later.

The cooling operation of the pre-cooling system is independently controlled based on the temperature-sensing operation of a pre-temperature detecting element (49) using, for example, a thermistor, and the post-cooling system is controlled by a post-temperature detecting element (50) using, for example, a thermistor. The cooling operation is independently controlled based on the temperature sensing operation of (50) is located in a copper tube (52) attached to the outer surface of the rear end of the cooling chamber (5).

The embodiment employs an indirect temperature detection method in which the front thermistor (49) and rear thermistor (50) are attached to the outer surface of the cooling chamber (5) to sense the mix temperature inside the cooling chamber (5). However, it is also possible to adopt a direct temperature detection method in which these are placed at the front and rear ends of the cooling chamber (5).

Most of the devices described above are housed in a main body (53) and a refrigerator (54) installed in parallel at the rear of the main body (53), as shown in the schematic layout diagram in Figure 3.The refrigerator (54) is a heat-insulated The structure consists of a cold storage room (55) and a machine room (56) defined above it, and the machine room (56) is equipped with a compressor (
57), a condenser (58), and a cooling fan & (59) for the condenser (58) are installed, and these are installed in the refrigerator compartment (58).
5) constitutes a cooling device together with the evaporator (61) disposed in the opening (60) formed in the ceiling wall (55A).

The cold air generated by the operation of the cooling device is blown into the refrigerator compartment (55) by a blower (62) arranged below the evaporator (61). Also, the refrigerator room (55)
is divided into upper and lower parts by a partition plate (64) with a large number of ventilation holes (63), and the above-mentioned mix tank (1) and syrup tanks (3A), (3B), (3
C> and (3D) can be stored by opening the doors (65) and (66). On the other hand, the lower part of the main body (53) is provided with each compressor (2
5) and (33), each air-cooled condenser (26) and (3
4), the front surface of the main body facing the air-cooled condensers (26) and (34), where the water-cooled condensers (27) and (35), the air blowers am (41) and (43), and the water heater (22) are arranged. A suction port (67) is formed in the main body (53), and an air outlet (not shown) is formed in the side surface of the main body (53). Also on the top of the main body (53).

The cooling chamber (5) containing a stirrer (68) is provided, and the extractor (6) is attached to the front of the cooling chamber (5).
There is a truss support (70) on which the cup (69) is placed.
is configured. The agitator (68) has a driven pulley connected to a rotating shaft (71) extending from the agitator (68) to the outside of the cooling chamber (5), and a main drive pulley connected to the output shaft of a stirring motor (73). Endless belt (75) between (74) and
The rotation of the drive motor (73) is transmitted. Furthermore, a cup (
A cup dispenser (76) containing a large number of cup dispensers (69) can be configured. In addition, the compressed gas cylinder (7) is attached to the main body (53
) and the refrigerator (54), so they are placed separately. As described above, the main body (53) and the refrigerator (54) housing various devices are movable by the plurality of casters (77) attached to their lower surfaces.

Next, the structure of the extractor (6) will be explained in detail based on FIGS. 4, 5, and 6. A removable resin cover (78) that closes the front opening of the cooling chamber (5) has a cylindrical vertical hole (79) that is open at both ends, and a cylindrical vertical hole (79) that closes the front opening of the cooling chamber (5). A cylindrical horizontal hole (80) extending in the direction and having an open end communicating with the cooling chamber (5) is formed. A bearing plate (82) with an outlet (81) formed at the bottom thereof is screwed onto the side edge of the cooling chamber (5) of the horizontal hole (80), and the bearing plate (82) has an umbrella shape. A movable shaft (84) extending rearward from the valve (83) is slidably supported. Further, a coil spring (85) is arranged between the bearing plate (82) and the valve (83) to surround the movable shaft (84).
Normally, the valve (83) is pressed against a step (86) formed in the middle of the horizontal hole (80), so that the valve (83) is inserted into the horizontal hole (80).
) to close the room. In addition, the valve (83)
is mainly constructed of stainless steel, but there is a stepped part (8
6) The part that is pressed is made of silicone material to improve sealing performance.

On the other hand, a valve (83) is mounted against the fill spring (85).
The mechanism for moving the valve toward the rear and opening the horizontal hole (80) is a slidable operating rod whose rear end is in contact with the tip of the valve (83) and whose front end is inserted through the cover (78) and protrudes forward. (87), the lower part of which is rotatably connected to the front part of the operating rod (87) in order to reciprocate the operating rod (87), and the rotation fulcrum (87) connected to the cover (78) at the upper part thereof. 88)
a plunger (89) connected to a lever (89) having a
91A>, and a return spring (92) that returns the lever (89) to its normal position. According to this configuration, the valve (8
3) is opened and closed automatically following the operation of the solenoid device (91), and can also be opened and closed by manually operating the lever (89).

In addition, the lower end opening of the vertical hole (82) is connected to the outlet (93).
A) is used as the mixing chamber (93). A stirring blade (94) formed with a large number of through holes (94A) is disposed in the mixing chamber (93>, and this stirring blade (94) has vertical holes (8
2) A sliding bearing (95) removably screwed onto the top of the
It can be connected to the lower part of the rotating shaft (96) which extends upward by passing through the rotary shaft (96). On the other hand, the upper end of the rotating shaft (96) is detachably connected to a flexible cable (98) passing through the protective tube (97), and the end of this cable (98)
As shown in the figure, rotation is transmitted by connecting it to a motor (99).

Furthermore, the extractor shown in FIGS. 4, 5, and 6 (
As a configuration other than 6), a cylindrical bearing (100) screwed onto the rear surface of the cover (78) supports the front end of the stirrer (68). In addition, as shown in FIGS. 1 and 2, a planar electric heater (101) wound around the outer surface of the evaporation vibrator (31) and the cooling chamber (5) and the cooling chamber (5), which will be described later, )
It is prepared to sterilize mixes supplied to By the way, as mentioned before, the extractor (6)
Syrup supply pipes (14A), (14B) connected to
(1,4C) and (14D) are flexible transparent tubes (14A1) that pass through the internal space of the main body (53) from the refrigerator (54) and can separate the portion led out to the front of the main body (53);
(14B1), (14C1) and (L4D1). These transparent tubes (14A1) to (14D1) have nozzles (14A2), (14B2), and (14D1) provided at their ends.
4C2) and (14D2) are connected at the upper part of the mixing chamber (93) so as to protrude inward of the iron base (93), and self-sealing couplings (14A3) and (14B3) are connected at the other end.
, (14C3) and (14D3). On the other hand, the ends of the syrup supply pipes (14A) to (14D) have main bodies (
53) are provided with self-sealing couplings (14A4), (14B4), (14C4) and (14D4) fixed to the front plate (-53A). And the self-sealing coupling (14A3) on the transparent tube (14A1> to (14D1) side)
Connect syrup supply pipes (14A) to (14D3) to (14D3) to
5D) side self-sealing couplings (14A4) to (14
D4) by connecting to the syrup tank (3A)
It is possible for four syrup passages to be established between (3D) and the mixing chamber (93).

Next, the water heater (22) will be described in detail based on FIG. 7. The example uses an instantaneous water heating system, and has a heating pipe (102) concentrically equipped with a sheathed heater (102).
3) The heating pipe (1) is sealed liquid-tight at both ends.
The water supply pipe (104) connected to the inlet end of the water supply pipe (104) leads tap water to the heating pipe (103).
From the upstream side, there is a check valve (105), a safety valve (106) that operates when the pressure inside the pipe increases abnormally, a constant flow valve (107) to flow a fixed amount of water, and a heater (107) that detects the flow of water.
Flow switch (107) that controls ON/OFF of
08) are connected sequentially. In addition, the heating pipe (103
) The hot water supply pipe (22A) connected to the outlet side end of the
There is a hot water temperature sensor (109) that detects the hot water temperature and controls the energization rate of the heater (102), and a manual water removal pulp (
110) and the hot water supply solenoid valve (24) are connected in sequence. (111) forces the heater (102) to turn off when the water temperature rises abnormally due to a malfunction of the water temperature sensor (109), etc.
This is a thermostat that prevents overheating.

Such a water heater (22) is equipped with a takeout device (6) as described above.
When cleaning and sterilizing the inside of the machine, it can be connected to the extractor (6) by using the connector (23). This connector (
23) has an inlet part (23E) at one end, as shown in detail in Figure 8.
1), and an outlet (23A1) extending upwardly from the passageway (23E) at an appropriate distance from the passageway (23E).
), a first vertical passageway (23A) with an outlet (23B1)
A second vertical passage (23B) having an outlet (23C1), a third vertical passage (23C) having an outlet (23C1), and a fourth vertical passage (23D) having an outlet (23D1) are formed. Transparent tubes (14A1) to (14D1) are connected to the exits (23A1) to (23D1) of 23A5 to (23D).
) can be connected to the self-sealing couplings (14A3) to (14D3) provided at the ends of the self-sealing couplings (23A
2), (23B2), (23C2) and (23D2), and a main body (53) at the end of the flexible connecting pipe (112) extending from the entrance part (23E1) of the horizontal passageway (23E).
Hot water supply pipe (22A) fixed to the front plate (53A) of
) is provided with a self-sealing coupling (112A) connectable to the self-sealing two coupling (22A1>) at the end.

Next, the electric circuit configuration of the present invention will be explained based on the system block diagram of FIG. 9. (113) is an automatic reset type cooling switch, (231) detects power on to this system and outputs a 1H signal, and then reset terminal (23
1A), when the “H” signal is input, the output signal is rL
, (232) is an AND circuit that inputs the output of the first switch circuit (114) and the output of the detection circuit (231) via the inverter (233), and (234) is the first (114) is a first switch circuit that generates a predetermined output pulse when the cooling switch (113) is closed; 11
5) is an automatic return type cold storage switch, (116) is a second switch circuit that generates a predetermined output pulse when the cold storage switch <115> is closed, and (117) is an input port (D,).
, (DI), (D,) and (Ds) and their corresponding output ports (Q,), (Q,), (Q,) and (Q
1), when a rH level signal is input to the input port, it latches the signal and outputs the latched rH level signal from the corresponding output port, and latches it until then. This is to cancel the signal that was previously set. Thus, the output of the AND circuit (232) is connected to the input port (D,) of the latch circuit (117),
The output of the AND circuit (234) can be connected to the input port (DI), and the output of the second switch circuit (116) can be connected to the input port (OS) of the latch circuit (117). The output capo-h (qo) of the latch circuit (117) is connected to the inverter (
118) to a first timer circuit (119) which starts with an input signal of rL'' level, and the output of the timer circuit (119) is connected to the input port (D,). Further, the output port (Q,) is connected to a cleaning circuit (120) which will be described in detail later, and the output of the cleaning circuit (120) controls the hot water supply solenoid valve (24) and the sheathed heater (102). The output port (Ql) connects the output of the cleaning circuit (120) that controls the hot water supply solenoid valve (24) to the inverter (13).
The power-on detection circuit (23) is connected to the other input of the AND circuit (132) which is inputted via the
1) can be connected to the reset terminal (231A). AND circuit <132) (7) The output can be connected to a first cooling control means, which will be described in detail later, that is, a cooling circuit (121), and the cooling circuit includes front and rear compressors (25) and (33), front and rear compressors (25) and (33), Controls the post-cooling solenoid valves (29) and (37) and the stirring motor (73). The output port (Q,) is connected to a sterilizing circuit (122), which will be described in detail later, and the sterilizing circuit (122) is
22) are front and rear compressors (25) and (33),
Controls the front and rear hot gas solenoid valves (46) and (48), and the above-mentioned planar heater (101). Output port (
Q, ) is connected to a second cooling control means, which will be described in detail later, that is, a cold storage circuit (123), and the output of the cold storage circuit (123) is connected to a pre-compressor (25), a pre-cooling, cooling solenoid valve (29). and controls the stirring motor (73). In addition, the sterilization circuit (1
22) is connected to one input of a NAND circuit (125) via an inverter (124), and the output port (Q
, ) is connected to the other input of the NAND circuit (125).The output of this NAND circuit (125) is connected to the cleaning circuit (120) via the inverter (126) and is at the "L" level. It is connected to the input of a second timer circuit (127) that starts with the input signal, and the timer circuit (127) starts with the input signal.
127) is connected to the input port (Qs). Furthermore, the output of the NOR circuit (12B> that inputs the outputs of the output ports (Q.) to (Q3), respectively, the output of the cooling circuit (121), the outputs of the output ports (Qo) and (Q,), The output of the cold storage circuit (123) is input to the OR circuit (129).The output of this OR circuit (129) is input to the third timer circuit (13
0), and the output of the timer circuit (130') controls the stirring motor (73). Next, the internal circuit configuration of the above-mentioned main blocks will be explained. FIG. 10 shows an internal circuit configuration diagram of the cleaning circuit (120), in which the output port (Q,) of the latch circuit (117) and the output of the inverter (126) are input to the OR circuit (133), respectively. . The output of this OR circuit (133) is the output of the inverter (1
34) with an input signal at level rL'',
After the start, T + waiting time (30 seconds in the example) r L ,
It is connected to the reset terminal of a timer circuit (135) that repeatedly outputs "rH of T1 time (3 minutes in the example)", and the output of the timer circuit (135) and the OR circuit ('133) are connected.
The outputs of each are input to an AND circuit (136). The OR circuit (137) inputs the output of the AND circuit (136) and the output of the AND circuit (136) through a refining circuit (149) consisting of a resistor and a capacitor.
The output of the transistor (138) is connected to the base of the transistor (138) and read directly to the inverter (131), and the collector line of the transistor (138) is connected to the first relay (139). On the other hand, an unbalanced voltage generated in a bridge circuit including a hot water temperature sensor (109) using a thermistor is amplified by an amplifier (140) and input to a positive input terminal of a switching circuit (141). The output of the switching circuit (141>) and the output of the AND circuit (136) are respectively input to the AND circuit (142>. Therefore, (143) is when the output of the AND circuit (142) is 1H. A photocoupler consisting of a light-emitting element (143A) that emits light and a light-receiving element (143B), (144) is a transistor that is turned off when the light-receiving element (143B) is turned on, and (145) is an OFF state of the transistor (144).
Cyrisk, which is triggered and turned ON by F, (146)
is a rectifier, (147) is a triac, and (102) is the sheathed heater connected in series with the triac (147).

FIG. 11 shows an internal circuit configuration diagram of the cooling circuit (121), which has a pre-cooling circuit (121A) that independently controls the above-mentioned pre-cooling system and a post-cooling system. It can be configured by a post-cooling circuit (121B) that is controlled by First, in the pre-cooling circuit (121A),
(148) is the front thermistor (49), the resistor (150)
) , (151) , (152) , (153) and a variable resistor (154) for adjusting the set temperature. (155) is a bridge circuit formed by a change in the resistance value of the front thermistor (49). An amplifier for amplifying unbalanced voltage (156) is a comparator (159) in which the midpoint between resistor (157) and <158 is connected to the positive input terminal, and the output of the amplifier (155) is connected to the negative input terminal.
) is a hum comparator in which the output of the amplifier (155) is connected to the positive input terminal, and the midpoint of the resistors (158) and (160) is connected to the negative input terminal, and the comparator (
The output of the comparator (156) is connected between the base of the transistor (162) and the collector of the transistor (163) via the diode (161), and the output of the comparator (159) is connected to the transistor (162) via the diode (164).
) and the base of the transistor (163). (165) is a transistor (163)
(7) Divided resistor (16
6) and (167), and the collector output of the transistor (165) and the output of the AND circuit (132) are respectively connected to the input of the AND circuit (168), and the AND circuit (168) The output of the transistor (169) is connected to the base of the transistor (169) and the input of the OR circuit (129).
A second relay (170) is connected to the collector line of 9). On the other hand, (171) in the post-cooling circuit (121B)
are the above-mentioned rear thermistor (50), resistor (172), (17
3) A bridge circuit consisting of (174), (175) and a variable resistor (176) for adjusting the set temperature; (17)
7) is an amplifier (178
) is a humperator in which the midpoint of resistors (179) and (180) is connected to the positive input terminal, and the output of the amplifier (177) is connected to the negative input terminal, and (181) is the amplifier (17).
Connect the output of 7) to the positive input terminal and connect the resistor (180)
It is a comparator in which the midpoint of
The output of the comparator (181) is connected between the base of the transistor (185) and the collector of the transistor (185).
86) between the collector of the transistor (184) and the base of the transistor (185). (
187) is a transistor connected via dividing resistors (188) and (189) connected between the collector of the transistor (185) and the ground;
The collector output of 7) and the output of the AND circuit (132) are respectively connected to the input of an AND circuit (190), and the output of the AND circuit (190) is connected to the base of the transistor (191) and the output of the AND circuit (132). (129), and a third relay (192) is connected to the collector line of the transistor (191).

By the way, the difference between the pre-cooling circuit j121A) and the post-cooling circuit (121B) explained above is that the post-cooling circuit (121B) turns on and off at a slightly higher temperature than the pre-cooling circuit (121A). Each variable resistor (15
4) and (176). In the embodiment, the pre-cooling circuit (121A) stops cooling when the pre-thermistor (49) detects -3.1°C, and the temperature reaches -3.0°C.
The post-cooling circuit (121B) is set to start cooling when the post-thermistor (50) detects -1.5°C, and the number of detections is -1.4°C. (193) uses the fluctuating voltage generated in the used front thermistor (49), resistor (150) and <151) in the pre-cooling circuit (121A) as a positive input, and
194) and a comparator with a negative input of the reference voltage divided by the variable resistor (195) for adjusting the set temperature, (
196) is an AND circuit that inputs the output of the humparator (193) and the output generated at the output port (Q, ) of the latch circuit <117), and <197) is the AND circuit (
196) as a set input, and the output port (Q
, ) is used as a reset input via an impark (198), and an RS flip-flop (199) connects the φ output of the flip-flop (197) and the output port (
(200) is a transistor whose base is connected to the output port (Q, ),
(201) is a fourth relay connected to the collector line of the transistor (200), (202) is a transistor whose base is connected to the output of an AND circuit (199) that can be connected to the input of the inverter (124), (203) is the fifth relay connected to the collector line of the transistor (202), (204) is mainly composed of an amplifier, oscillator, comparator, etc., and the front thermistor (49), resistor ((150)
) and (151), a pulse width modulation circuit that finally outputs a pulse corresponding to the fluctuating voltage generated, and (205) inputs the output of the modulation circuit (204) and the output port (Q), respectively. AND circuit, (206) is a photocoupler consisting of a light emitting element (206A) and a light receiving element (206B) that emit light when the output of the AND circuit (205) is rH, (207) is turned off when the light receiving element < 206B) is turned on. <208> is a transistor (
207) is triggered and turned on by OFF, (209) is a rectifier, (210) is a triac,
(101) is the above-mentioned planar heater for heating the cooling chamber (5) connected in series with the triac (210).

Next, FIG. 13 shows an internal circuit configuration diagram of the cold storage circuit (123), and the cold storage circuit (123) has the same configuration as the pre-cooling circuit (121A). Among these (21
1) is the above-mentioned front thermistor (49) and the above-mentioned resistor (150)
and (151), and resistance (212), (213)
and a variable resistor (214) for adjusting the set temperature, of which the front thermistor (49) and resistors (150) and (151) are connected to the front cooling circuit (121).
/1) is used in common. (215) is an amplifier that amplifies the unbalanced voltage generated on the bridge due to a change in the resistance value of the front thermistor (49), and (216) is a resistor (
Comparator L, -9, (219) connects the midpoint of 217) and (218) to the positive input terminal, and connects the output of the amplifier (215) to the negative input terminal. and resistors (218) and (22
0) is connected to the negative input terminal, and the output of the comparator (216) is connected between the base of the transistor (222) and the collector of the transistor (223) via the diode (221). The output of (219) is connected to the collector of transistor (222) and the base of transistor (223) via diode (224). (225)
is a transistor connected via dividing resistors (226) and (227) connected between the collector of the transistor (223) and the ground, and the flefter output of the transistor (225) and the output of the output port (Qs) are respectively It can be connected to the input of the AND circuit (228), and the AND circuit (2
The output of the transistor (28) can be connected to the base of the transistor (229) and the input of the OR circuit <129), and the collector line of the transistor (229) is connected to the sixth
Connect the relay (230). By the way, the cold storage circuit (1
23) and the above cooling circuit (121) is that the mix temperature is controlled to a higher temperature than the cooling circuit (121), that is, the refrigeration temperature.In the embodiment, the front thermistor (4
9) is set by a variable resistor (214) to stop cooling when it detects 1°C and to start cooling when it detects 2°C.

Note that in the block diagram of FIG. 9, the first timer circuit (1
19) and the second timer circuit (127) output "rH" after a predetermined time (30 minutes in each embodiment) has elapsed since the start. Further, the third timer circuit (130) is the fourteenth timer circuit (130).
As shown in the figure, there is a timer element (130A) that repeatedly outputs "L" for T3 hours (3 minutes in the example) and rH for 14 hours (30 seconds in the example) after the start, and the timer element (130A). A transistor (231'') that can be controlled by the output of the transistor (231'') and a seventh relay (232) connected to the collector line of the transistor (231) are provided.

Therefore, the first to seventh relays (1
39), (170), (192), (201), (20
3), (230) and (232) can be connected to each device as shown in FIG. That is, the hot water supply solenoid valve (24) is connected to the first relay (139).
) is connected in series with the normally open contact (139A) of the second relay (170), and the pre-cooling solenoid valve (29) is connected in series with the normally open contact (139A) of the second relay (170).
170A) and the normally open contact (230A) of the sixth relay (230)
A) is connected in series with the parallel circuit, and the front compressor (25) is connected to the normally open contact (170B) of the second relay (170).
), the normally open contact (203A) of the fifth relay (230), and the normally open contact (230B) of the sixth relay (230) are connected in series, and the post-cooling solenoid valve (37) It is connected in series with the normally open contact (192C) of the relay (192), and the rear compressor (33) is connected to the third relay (192C).
92) normally open contact (192A) and the fifth relay (203>
The stirring motor (73) is connected in series with the normally open contact (203B) of the second relay (170) and the normally open contact (192B) of the third relay (192). ), the normally open contact (20
1A), normally open contact of the 6th relay (230) <230C)
and a parallel circuit with the normally open contact (232A) of the seventh relay (232), and the front hot gas solenoid valve (
46) and the rear hot gas solenoid valve (48) are connected to the fifth parallel circuit.
It is connected in series with the normally open contact (203C) of the relay (203).

Next, the present invention will be explained in detail based on the above configuration. First, when the pump device (17) is activated with power turned on to the entire system, the mix in the mix tank (1) is sucked in through the suction pipe (18), and at this time, the air introduction pipe (
It is supplied into the cooling chamber (5) from the rear inlet (5A) of the cooling chamber (5) through the mix supply pipe (19>) together with an appropriate amount of air taken in from the cooling chamber (5).

When a predetermined amount of the mix is supplied to the cooling chamber (5), the pump device (17) is stopped to end the supply of the mix.

On the other hand, when the power is turned on to the system, the power-on detection circuit (231) outputs a signal of r H level, and one input of the AND circuit (232) is "L4," one input of the AND circuit (234). is in the state r H. In this state, when the cooling switch (113) is pressed, the first
Output pulses are generated from the switch circuit (114) and input to the AND circuits (232) and (234), respectively, so the AND circuit (232) whose one input is r L J
)'s output is ' L J % and one input is r H.

The output of the AND circuit (234) becomes "H".

This causes the input port (D
,) is inputted to I'H, and rH, is outputted from the corresponding output port (Q,). The output of the AND circuit (132) which inputs this output and the output of the inverter (131), which is 'HJ at this time, becomes rH, which is input to the cooling circuit (121), and the operation of the cooling system is started. This specific operation will be explained based on FIG. 11.

First, in the pre-cooling circuit (121A), the cooling chamber (5)
Since the mix temperature just supplied to the amplifier is relatively high, the resistance value of the front thermistor (49) is small, so that the positive input voltage of the amplifier (155) is high and its output is also high. The output of this amplifier (155) is the negative input terminal of the comparator (156) and the comparator (1
59) are respectively input to the positive input terminals. Here, the output voltage 4t of the amplifier (155) can be preset to be higher than the fixed voltage (V, ) and (vn) when the mix temperature is higher than the set temperature, and the fixed voltage (V, ) when the mix temperature is lower than the set temperature. ) and (vn. As a result, the output of the hum comparator (156) becomes "L" and the output of the comparator (159) becomes rH. At this time, the value of (V, ) Since the voltage is pulled to "L" through the diode (161), the double transistor (162) is turned off, and the voltage at (V, ) is reverse biased by the diode (164), so the transistor (162) is turned off and becomes "HJ". Then, the transistor (!G37 is also turned off. Furthermore, the transistor (1
Since the collector voltage of transistor (63) is “L”, transistor (1
65) is also turned off. Jutte, Transistor (165)
The collector voltage of is rH.

On the other hand, the post-cooling circuit (121B) is also the pre-cooling circuit (121A).
), it performs the same operation as the rear thermistor (50).
detects a mix temperature higher than the set temperature, so finally the collector voltage of the transistor (187) is rH,
becomes.

As a result, the output of the AND circuit (168) which inputs the output of the AND circuit (132) and the collector voltage of the transistor (165) becomes rH.
The output of the AND circuit (190) which inputs the output of 2) and the collector voltage of the transistor (187) is also rH. Therefore, the output of the transistor (169) and (191)
is ONt, the second relay (170) and the third relay (19
2) is energized and the normally open contact (170A) shown in Figure 15
, (170B> and (170C) and normally open contact (192A
), (192B) and (192C) are closed. As a result, the front compressor (25) is operated and the front cooling solenoid valve (29) is opened to start the cooling operation by the front cooling system, and at the same time, the rear compressor (33) is operated and the rear cooling solenoid valve (37) is opened. When the valve is pressed, cooling operation by the post-cooling system is started, and the stirring motor (73) is driven to rotate the stirrer (68).

Thus, when the mix supplied to the cooling chamber (5) is cooled, the mix gradually increases its viscosity and hardens.
It is used as a base for semi-frozen ice cream shakes. As the temperature of the shake base decreases, the resistance values of the front thermistor (49) and the rear thermistor (50) increase. Here, since the pre-cooling circuit (121B) has a higher set temperature than the pre-cooling circuit (121A), the rear thermistor (50) first detects the predetermined reduced temperature (-1.5°C) of the shake base, This allows the amplifier (17
7) becomes low, and the output voltage of the amplifier (177) also becomes low. At this time, the output voltage of the amplifier (177) becomes lower than the fixed voltages (v6) and (v6),
The output of the comparator (178) is rH, and the output of the hum comparator (181) is rL. This results in
The voltage at (vy) is unaffected by the reverse bias of the diode (183>, and the voltage at (V,) is not affected by the reverse bias of the diode (183).
6) to the output "L" of the humpator (181), a potential difference is generated between the base and emitter of the transistor (185) and the transistor (185) is turned on.
The transistor (184) is also turned on. Furthermore, since the collector voltage of the transistor (185) is "Hl", the transistor (187) is also turned on, and the transistor (187) is also turned on.
7), the collector voltage is rL. As a result, the output of the AND circuit (190) becomes "LJ", the transistor (191) becomes 0FFL, and the excitation of the third relay (192) is released.Then, the normally open contact (192A) of the third relay (192) , (192B> and (192C)) are opened, the post-cooling solenoid valve (37) is closed, and the post-cooling solenoid valve (37) is closed, stopping the operation of the post-cooling system.

Thereafter, when the front thermistor (49) detects a predetermined temperature drop (-3.1°C) of the shake base, the front cooling circuit (12
1A) works and finally brings the collector voltage of the transistor (165) to "L". As a result, the output of the AND circuit (168) becomes "L", and the output of the transistor (168) becomes "L".
9) is turned off to release the excitation of the second relay (170). Then, the normally open contact (170) of the second relay (170)
A), (170B) and (170C) are opened, the pre-compressor (25) stops, and the pre-cooling solenoid valve (29) is opened.
) is closed and the operation of the pre-cooling system can be stopped. 'Then, when the temperature of the shake base rises and the front thermistor (49) detects a predetermined increased temperature (-3.0°C), the front cooling system resumes operation, and the rear thermistor (50
) detects a predetermined temperature rise (-1.4 DEG C.), the post-cooling system resumes operation.

However, in reality, if there is no or almost no outlet for the finished shake base in the cooling chamber (5), the temperature of the shake base stirred in the cooling chamber (5) will be determined by the rear thermistor ( The set temperature of the front thermistor (49) approaches the set temperature of the front thermistor (49), which is lower than the set temperature of the front thermistor (49), and as a result, in such a case, the post-cooling system hardly restarts operation, and the pre-cooling system repeatedly starts and stops. Therefore, the ideal temperature of the shake base taken out of the cooling chamber (5) is set by the pre-cooling circuit (121A). The reason why the control temperature of the post-cooling circuit (121B) is made higher than the control temperature of the pre-cooling circuit (121A) will be explained in detail when explaining the take-out operation described later. By the way, the operation of both the front and rear cooling systems is stopped, and the outputs of the AND circuits (168) and (190) become "
When it becomes "L", all the inputs of the OR circuit (129) shown in FIG. 9 become "L", thereby causing the third timer circuit (
130), the timer element (130A) shown in FIG. 14 starts, and the timer element (130A) shown in FIG. Output repeatedly. In response to this output, the transistor (231) repeats OFF and ON, and the seventh relay (232) also controls the normally open contact (232A) accordingly. Accordingly, the stirrer (68) interlocked with the stirring motor (73) periodically stirs the shake base at the above-mentioned time while the operation of the front and rear cooling systems is stopped.

Next, the operation of taking out the ice cream shake that is finally made by mixing the shake base finished in the cooling chamber (5) and the syrup as described above will be explained below. For example, if you want a chocolate-flavored ice cream shake, press the switch that says chocolate, and the solenoid device (shown in Figure 16)
91) is energized, the plunger (91A) is attracted and the actuating bottle (90) pulls the lever (89) forward. Then, the lever (89) rotates about the fulcrum (88) and moves the operating rod <87) toward the cooling chamber (5). By this movement of the operating rod (87), the pulp (83) is pushed backward against the coil spring (85) to open the side hole (80). As a result, the shake base in the cooling chamber (5) is moved from the outlet (81) to the side hole (8) by the agitator (68).
0) to the mixing chamber (93). At the same time, the syrup supply solenoid valve (15A) opens and the gas phase pipe (9
), syrup tank (
Due to the suppression of the compressed gas applied to the tank (3A), the chocolate syrup in the tank (3A) is transferred to the syrup supply pipe (3A).
14A), the nozzle (14A1) through the transparent tube (14A1)
2) to the mixing chamber (93).

In this way, the shake base and chocolate syrup supplied to the mixing chamber (93) are stirred and mixed at an extremely high speed by the stirring blade (94) linked to the drive motor (99), resulting in a chocolate-flavored ice cream shake. and take out the cup (from I (93A)).
69).

Stopping the extraction of ice cream shake can be done by switch operation, measurement, time, etc., but in any case, when a stop signal is issued, the syrup supply solenoid valve (15A) is closed and the mixing chamber (93 ) Stop feeding chocolate syrup to Subsequently, the excitation to the solenoid device (91) is released and the lever (89) returns to its normal position as shown in Figure 5 by the action of the return spring (92), and the operating rod (87) follows this. Return to forward position. As a result, the pulp (83) is pressed against the step (86) of the side hole (80) by the fill spring (85), closing the side hole (80).

The above has explained the operation for taking out a chocolate flavored ice cream shake, but if you want a strawberry flavored ice cream shake, the syrup supply solenoid valve (15B) is opened and you want a vanilla flavored ice cream shake. Nara syrup supply solenoid valve (15C)
If a yogurt-flavored ice cream shake is desired, the syrup supply solenoid valve (15D) is opened by operating the corresponding switch.

In the above extraction operation, when the shake base in the cooling chamber (5) is completely sent to the mixing chamber (93), the pressure detection device (20) detects the pressure drop in the cooling chamber (5) and the pump device ( 17) to replenish the cooling chamber (5) with the mix. Such a mix replenishment operation is in response to the removal of ice cream shakes, especially if the removal of ice cream shakes occurs continuously.
A large amount of mix can be replenished into the cooling chamber (5) at one time.

In such a case, the post-cooling circuit (121B) will work effectively. In other words, the post-cooling circuit (121B), which has a higher set temperature than the pre-cooling circuit (121A), has a post-thermistor (
50) can quickly detect a sudden temperature rise due to large amounts of mix replenishment, start cooling operation of the post-cooling system, and quickly bring the shake base to an ideal viscosity.

Through the above explanation, the cooling operation and ice cream shake removal operation of the present invention were understood.

The following describes the work and operations that are performed after the day's pick-up work is completed, for example, after the store is closed.

First, the syrup supply pipe (14A), the transparent pipe (14A1), and the syrup supply pipe (14A1) in the state shown in FIGS.
4B), transparent tube (14B1), syrup supply tube (14C
) and the transparent tube (14C1), and the syrup supply tube (14D) and the transparent tube (14D1). Also, remove the rotating shaft (96) and insert the stirring blade (94) into the mixing chamber (
93), and then remove the sliding bearing (95).

These removed parts are individually cleaned and stored.

After that, as shown in FIGS. 17 and 18, the transparent tube (
Connectors (14A1) to <14D1) provided with self-sealing couplings (14A3) to (14D3) at the ends
Self-sealing coupling (23A2) provided on the outlet side of 23)
) to (23D2), and further connect to the connector (23D2).
Connect the self-sealing coupling (112A) provided at the end of the connecting pipe (112) extending from the inlet side of the hot water supply pipe (2) to the hot water supply pipe (2).
Self-sealing coupling (22A1>) provided at the end of 2A)
Connect to. At the outlet of the mixing chamber (93), there is a small-diameter hot water discharge passage (2) that communicates the inside and outside of the mixing chamber (93).
Attach the cap (235) formed with 34).

After completing the above operations, when the cold storage switch (115) is pressed, an output pulse is generated from the second switch circuit (116) and input to the input port (D,) of the latch circuit (117). Then, the output port (Q,) of the corresponding latch circuit (117) outputs "rH", and the output of the output port (Q,) becomes rL. As a result, the cooling operation by the cooling circuit (121) is completed, and the sterilization circuit (122) receiving the output rH of the output boat (at) starts the sterilization operation. This specific operation will be explained based on FIG. 12. First, in response to the output rH of the output capo-1*), the transistor (200) is turned on, and the fourth relay (20
1) is excited and closes the normally open contact (201A). As a result, the stirring motor (73) is driven and the stirrer (68)
rotates. The rotation of this agitator (68) is controlled by the output boat (
ox) continues until the output "H" is cut off. On the other hand, since the mix temperature immediately after starting the sterilization operation is naturally low, the resistance value of the front thermistor (49) is large, and the resistance value of the front thermistor (49) is large.
) is low 9. Since this is low compared to the negative input voltage, the output voltage of the comparator (193) is r L , so that the set input terminal of the flip-flop (197) has an AND circuit. (196
) is input, and the inverted output r L of the output port (Ql) is input to the reset terminal by the inverter (198), so the flip-flop (1
97) The glue output voltage becomes "H". AND circuit (199
) becomes r H, which causes the transistor (
202) is ONt, and the fifth relay (203) is energized to close the normally open contacts (203A), (203B), and (203C). Therefore, the front and rear compressors (25) and (33) are operated, and the front and rear hot gas solenoid valves (46) are operated.
) and (48) open.

Therefore, high-temperature refrigerant gas, that is, hot gas, passes through the bypass pipe (
The evaporating vibes (31) and (45) and (47) pass through
39), cooling room 5), and further cooling room <5)
Heat the mix inside.

On the other hand, immediately after the sterilization operation starts, the mix temperature is the lowest, so the input voltage of the pulse width modulation circuit (204) is extremely low.
The output pulse width of "H" of the modulation circuit (204) becomes longer.The output of the AND circuit (205) which receives this output and the output of the output boat (Q,) becomes rH, and the light emitting element (
A current flows through the element (206A), the element (206A) emits light, and the light receiving element (206B> is turned on. As a result, the transistor (207) is turned off, so the collector voltage of the transistor (207) becomes rH, Then, Cyrisk (208) is triggered and turns ON.
When 208) is turned on, triac (210) is also turned on.
L, AC 20QV is applied to the planar heater (Lot), and the heater (101) generates heat.

As described above, when the cold storage switch (115) is pressed, hot gas is circulated through the evaporation pipes (31) and (39), and the heater (101) is energized, causing the cooling chamber (5) and the iron base (5) to circulate. ) with hot gas and heater (10
A heating sterilization operation is started by the combination of 1).

As the sterilization operation progresses, the mix temperature gradually rises, and when the front thermistor (49) detects a predetermined sterilization temperature (for example, set at 75°C, which does not cause burnt odor in the embodiment), the comparator (193) ) (7) The positive input voltage becomes higher than the negative input voltage, and the comparator (1
The output of 93) changes from I″L″ to rH. Then,
The output of the AND circuit (196) becomes rH, and since this can be input to the set input terminal of the flip-flop (197), the ζ output of the flip-flop (197) becomes rL.
, becomes. As a result, the output of the AND circuit (199) becomes r L '', and the transistor (202) becomes 0FF.
At L, the excitation of the fifth relay (203) is released and the normally open contacts (203A), (203B) and (203C) are opened. Therefore, the anterior and posterior humbretusa (25) and (3
3) is stopped, and the front and rear hot gas solenoid valves (4) are stopped.
6) and (48) are also closed. In this manner, when the mix temperature reaches the predetermined sterilization temperature, heating of the mix with hot gas is first terminated. However, the heater (101)
Heating of the mix can continue based on the output of the pulse width modulation circuit (204) unless the output rH of the output port (Q,), which is one input of the AND circuit (205), is cut off.

That is, as the mix temperature approaches the sterilization temperature, the input voltage of the pulse width modulation circuit (204) increases, and as a result, the interval between the output pulses rH of the modulation circuit (204) gradually becomes shorter. The interval between "L" gradually becomes longer. When "H" is output from the modulation circuit (204), the heater (101) is energized as described above, and when "L" is output from the modulation circuit (204), the AND circuit (205) ) becomes “L”, and the light emitting element (206
A) does not emit light and the light receiving element (206B> is turned off. As a result, the transistor (207) is turned on, so its collector voltage is.

It becomes "L" and Cylisk (20g) is turned off, and the try book (210) is also turned off and the heater (101) is turned off.
power is cut off. In this way, by changing the energization rate of the heater (101>) based on the mix temperature, the mix temperature is maintained at the sterilization temperature.On the other hand, when the predetermined sterilization temperature is reached, the AND circuit (199) The output "L" is input to the inverter (124) as shown in FIG. 9, and the inverter (124) outputs r H
, and the output rH of the output boat (qt), the output of the NAND circuit (125) becomes "L", and the second timer circuit (127) receiving this output starts. Furthermore,
The output “L” of the NAND circuit (125) is connected to the inverter (12
6) and is input to the cleaning circuit (120), so the cleaning circuit (120) starts operating. This specific operation will be explained based on FIG. 10. Inverter (12
The output rH of 6) is input to an inverter (134) through an OR circuit (133), inverted, and an "L" level signal is input to a timer circuit (135). This starts the timer circuit (135) as described above, indicating "L" for time T8 (30 seconds) and T! (Waiting time: 3 minutes) I"H" is repeatedly output. An AND circuit (which inputs the output of this timer circuit (135) and the output of the OR circuit (133), respectively)
The output of 136) is an output synchronized with the timer circuit (135). Therefore, from the AND circuit <136), “H”
When is output, the transistor (138) is turned ON via the OR circuit (137), the first relay (139) is energized, the normally open contact (139A) is closed, and the hot water supply solenoid valve (2
4) opens the valve. As a result, tap water passing through the heating pipe (103) from the water supply pipe (104>) is heated by the sheathed heater (102), which is energized when the flow switch (108) is ON, and then hot water is supplied. Pass through the tube (22A), pass through the connecting tube (112), pass through the connector (23), and pass through the transparent tubes (14A1) and (14B1).
), (14C1) and (14D1) to each nozzle (
14A2), (14B2), (14C2) and (14D
2) into the mixing chamber (93). The mixing chamber (9
The hot water discharged in step 3) cleans and sterilizes the mixing chamber (93) and drains through the drain passage (234'') of the cap (235) to a suitable drain means.
Because the space is narrow, the hot water is sufficiently grooved in the mixing chamber (93) and overflows from the upper opening of the vertical hole (79).
Furthermore, the side hole (80) up to the valve (83) is thoroughly cleaned and sterilized.

On the other hand, the hot water temperature is controlled to be constant based on the hot water temperature sensor (109), and the hot water temperature is set to the set temperature (75 in the example).
°C setting), the output tEE of the amplifier (140)
becomes lower than the negative input voltage of the comparator (141), and the output of the comparator (141) becomes r L . AND circuit that outputs this output and T1 time rH (
Since the output of the AND circuit (142) which inputs the outputs of 136) is r L , the light emitting element (143A) does not emit light, the light receiving element (143B) is turned off and the transistor (144) is turned on, As a result, Cyrisk (14
5), and furthermore, Tora and Iatsuk (147) are 0FFL one after another.
, the sheathed heater (102) is turned off. When the water temperature falls slightly below the set temperature again, the output voltage of the amplifier (140) becomes higher than the negative input voltage of the comparator (141), and the output of the comparator (141) becomes rH. The output of the AND circuit (142) which inputs this output and the output of the AND circuit (136) is rH, so the light emitting element (143A) emits light and the light receiving element (143B)
> turns on and turns off the transistor (144)! ,,This allows Cyrisk (145), Triac (147)
) are sequentially turned on, and the sheathed heater (102) is turned on. In this way, the hot water supply temperature is controlled to a substantially constant temperature suitable for cleaning and sterilization.

Then, after the T1 time has elapsed and the output of the AND circuit (136) becomes "L", the output of the AND circuit (14) becomes "L".
2) output becomes "L", and at this point the sheathed heater (
102) is 0FFL, and this heater (102) remains OFF for T1 time. In addition, the output of the OR circuit (137) is r L after a delay time (several seconds) by the integrating circuit (149).
, the transistor (138) is turned off, and as a result, the first relay (139) is de-energized, the normally open contact (139A) is opened, and the hot water supply solenoid valve (24) is closed. Such a delay in the hot water supply solenoid valve (24) is caused by the delay in the hot water supply solenoid valve (24).
The water heated by the residual heat of the mixing chamber (93) becomes steam.
) is effective in preventing the danger of being sent to the

While repeating the above cleaning operation, the heater (101
) alone continues the sterilization operation of the mix in the cooling chamber (5).

When the second timer circuit (127) elapses a predetermined time, the timer circuit (127) outputs rHJ and inputs it to the input port (D,) of the latch circuit (117).

Then, the output of the output port (Q,) of the latch circuit (117) becomes rH, and the output of the output port <Q,> becomes ′
It becomes "L". Therefore, the sterilization circuit (122) completes the sterilization operation, and the output of the NAND circuit (125) which inputs the output "L" of the output port (Qt) becomes rH, .
In addition to resetting the timer circuit (127), the output "H" of this NAND circuit (125) is connected to the inverter (126).
As a result, the inversion becomes "L" and the input to the cleaning circuit (120) is completed, so that the cleaning circuit (120) also completes the cleaning operation.

Then, the cold storage circuit (123) receiving the output rH of the output port (Q,) starts the cold storage operation. This specific operation will be explained based on FIG. 13. Since the mix temperature in the cooling chamber (5) which has just finished the sterilization operation is approximately the sterilization temperature, the resistance value of the front thermistor (49) is extremely small, and therefore the positive input voltage of the amplifier (215) is high. The output will also be higher. The output of this amplifier (215) is input to the minus input terminal of the comparator (216) and the plus input terminal of the hum comparator (219), respectively. Here, the output voltage of the amplifier (215) is preset to be higher than the fixed voltage (■, ) and (■1°) when the mix temperature is higher than the set temperature, and the fixed voltage when the mix temperature is lower than the set temperature. (V+ 1) and (Vat
) is preset to be lower. As a result, the output of the hun comparator (216) becomes 1L, and the output of the comparator (219) becomes rH. At this time (V,)
Since the voltage of is drawn to "LJ" through the diode (221), the transistor (222) is turned off and (V
Since the voltage of ll) is a reverse bias of the diode (224), it becomes rH when the transistor (222) is turned off, and the transistor (223) is also turned off. Furthermore, since the collector voltage of the transistor (223) is r L , the transistor (225) is also turned off. Therefore, the collector voltage of the transistor (225) becomes "H".

This causes the output port (Q
The output of the AND circuit (22B>, which inputs the output rH of the transistor (225) and the collector voltage "H" of the transistor (225) becomes rH, and the transistor (229) turns on and the sixth
The relay (230) is energized and its normally open contacts (230A
), (230B) and (230C) are opened. The pre-cooling solenoid valve (29) is opened to start cold storage operation by the pre-cooling system. Furthermore, the stirring motor (73) is driven and the stirrer (6
8) rotates.

The mix in the cooling chamber (5), which is at approximately the sterilization temperature, is cooled, and when the front thermistor (49) finally detects a predetermined drop in temperature (1°C) of the mix, the amplifier at this time Since the output voltage of (215) is lower than the fixed voltages (V, ) and (VIO), the comparator (216)
The output of the comparator (219) is rL.
becomes. As a result, the voltage of (vll) is the voltage of diode (
221) and is unaffected by the reverse bias of (vIf
Since the voltage of i) is drawn to the output "L" of the humparator (219) through the diode (224), a potential difference is generated between the base and emitter of the transistor (223), and the transistor (223) becomes ONL.
22) is also turned on. Furthermore, since the collector voltage of the transistor (223) is rH, the transistor (225)
is also ONL, and the collector voltage of the transistor (225) is 1L. As a result, the output of the AND circuit (228) becomes "L" and the transistor (229) turns OFF.
Then, the sixth relay (230) is de-energized and its normally open contacts (230A), (230B) and (230C) are opened. Therefore, the front humidifier (25) stops operating, and the pre-cooling magnetic valve (29) closes, thereby stopping the cold storage operation of the pre-cooling system. Further, the stirring motor (73) stops and the rotation of the stirrer (68) stops.

By the way, when the operation of the pre-cooling system is stopped and the output of the AND circuit (22g) becomes r L , all the inputs of the OR circuit (129) shown in FIG. A signal of level r L is input to the timer circuit (130), and the timer element (
130A) starts and T8 time (3 minutes) r L
J and rH of T1 time (30 seconds) are repeated and output. Transistor (231) turns OFF in response to this output.
and ON are repeated, and the seventh relay (232) also follows this and controls the normally open contact (232A). by this,
An agitator (68) coupled to the agitation motor (73) agitates the mix at said time period while the pre-cooling system is stopped.

After that, the mix temperature rises and the front thermistor (49)
When the pre-cooling system detects a predetermined temperature increase (2° C.), the pre-cooling system resumes cooling operation.

As described above, the cold storage circuit (123) maintains the mix in a liquid state by controlling the mix temperature in the cooling chamber (5) to a predetermined refrigeration temperature slightly higher than 0°C.

Such a cold insulation operation by the cold insulation circuit (123) is continued until the cooling switch (113) is pressed down. Note that the various piping connections made before the start of cold storage operation are left as they are.

Then, the next morning, for example, before opening the store, the cooling switch (113)
When is pressed, an output pulse is generated from the first switch circuit (114) and input to the AND circuits (232) and (234), respectively. At this time, the output of the power-on detection circuit (231) becomes rL when rH is output from the output port (Q,) of the latch circuit (117) in the above explanation, so the AND circuit ( The other input of the inverter (233) is the inverted output rH4 of the AND circuit (232).
) has become r L J.

Therefore, rH, is input to the input port (D,) of the latch circuit (117), "Hl" is output from the output port (Qo), and the output of the output port (Q,) is r L .

becomes. As a result, the cold storage circuit (123) ends its cold storage operation, and the cleaning circuit (120), which receives the output l''H'' of the output boat (Q,), starts its operation. Since this specific operation is exactly the same as the operation of the cleaning circuit (120) that is performed in the middle of the sterilization operation described above, the explanation will be omitted here.

The cleaning time by the cleaning circuit (120) is controlled by the first timer circuit (119). That is, when "H" is output from the output port (Qs), this output is inverted by the inverter (118), and is input to the first timer circuit (119) as a level signal, and the first timer circuit (119) starts and the predetermined time (3
0 minutes), the timer circuit (119) becomes 'HJ
generates an output and inputs it to the input port (o+). As a result, r H is outputted from the output port (QI), and the output of the output port (Qo) becomes r L , the first timer circuit (119) is reset, and the cleaning circuit (120) ends its operation. . Strictly speaking, the cleaning circuit (
When the delay time caused by the integrating circuit (149) in the cleaning circuit (120) has elapsed, the cleaning circuit (120) completely ends its operation.

On the other hand, in the cooling circuit (121), after the delay time of the integrating circuit (149) has elapsed, the output of the OR circuit (137) is r L
, and waits until this output is inverted by the inverter (131) and rH is input to the AND circuit (132), and then the cooling operation detailed above is started.

Therefore, it is desirable that the user can confirm the completion of the cleaning operation using an LED or a buzzer, etc. When the cleaning operation is completed, it is shown in Figures 17 and 18 that the cleaning operation was completed before starting the cold storage operation the previous day. 4th from the piping connection state for cleaning
Perform the work to return to the normal piping connection state shown in Figures and Figure 5. First, the connecting pipe (112) and the hot water supply pipe (22A)
Disconnect the transparent tubes (14A1), (14B1),
After disconnecting the connector (23) from (14C1) and (14D1>, the transparent tubes (14A1) to (14D1)
Connect the syrup supply pipes (14A), (14B>, (14) again
C) and <14D). Furthermore, the stored sliding bearing (95) is attached, the stirring blade (94) is inserted into the mixing chamber (93), and the rotating shaft (96) is connected to the cable (98).

By completing the above operations, it becomes possible to take out the ice cream shake again, but the mix in the cooling chamber (5) is notified by means such as an LED or a buzzer that the temperature has dropped from the cold preservation temperature to the ideal takeout temperature. It is desirable that the user can confirm this.

Note that the present invention eliminates the post-cooling system and the post-cooling circuit,
The pre-evaporation pipe (31) may be wound around substantially the entire width of the cooling chamber (5) so that the pre-cooling system alone cools the mix in the cooling chamber (5), in which case both cooling and removal are performed. Although it is slightly inferior to the two-horn cooling system in terms of the relationship between cooling and cold storage, it is not inferior to the two cold storage systems and exhibits the same effect as the two-horn cooling system.

In addition, the compressed gas used for feeding the syrup can be used instead of the pump device 0 as a means of feeding the mix, and the mix tank can be placed above the cooling chamber to allow the mix to fall naturally into the cooling chamber. It is also possible to supply it.

Furthermore, as a water heater, in addition to an instantaneous water heating system, a hot water storage type can also be considered. Furthermore, the specific values such as temperature, time, voltage, etc. described in the examples are not limited to these and can be appropriately determined depending on various conditions, and the various parts and devices used in the examples may vary. The design can be changed within the range that functions equivalent to these, or it is also possible to substitute other parts or devices.

The frozen dessert manufacturing apparatus of the present invention described above has been explained using an example of an ice cream shake manufacturing apparatus that is representative of ice cream shakes. It can also be applied to similar manufacturing equipment such as soft ice cream. in this case,
The ideal temperature range for taking out the ice cream shake in the example is -2.5°C to -3.5°C, whereas the ideal temperature range for taking out the soft ice cream is several degrees lower than that of the ice cream shake. A temperature of about 5°C to -10°C is desired. And these ideal temperature ranges for cold storage are:
It is desirable that the temperature be higher than O'C and lower than 10°C specified by the Food Sanitation Act.

(G) Effects of the Invention As described above, the present invention can effectively clean and sterilize the passage of the takeout unit from the opening/closing means to the takeout port with boiling water without recovering the frozen dessert concentrate in the cooling chamber. The utensils can be managed hygienically.

In addition, there is no need to collect the frozen dessert stock solution in the cooling room and store it in the refrigerator, and after it is heated and sterilized in the cooling room,
It is kept in a low-temperature liquid state in the cooling room, allowing the frozen dessert stock solution to be managed hygienically.

[Brief explanation of the drawing]

Figure 1 is a system configuration diagram of an ice cream shake manufacturing apparatus that implements the present invention, Figure 2 is a configuration diagram of a cooling system for cooling the mix in the cooling chamber, and Figure 3 is a diagram showing the equipment arrangement of the ice cream manufacturing apparatus. Internal layout diagram, 4th
The figure is a side cross-sectional view with the front part of the cooling chamber and a part of the extractor cut away, Figure 5 is a side cross-sectional view of the entire front part of the cooling chamber and the extractor, and Figure 6 is a partially cutaway side view. A front sectional view of the extractor, Fig. 7 is a specific configuration diagram of the water heater, Fig. 8 is a sectional view of a connector used when cleaning the extractor, and Fig. 9 is a system block showing the electric circuit configuration of the present invention. Figure, 1st
FIG. 0 is an internal circuit diagram of the cleaning circuit shown in the block diagram, FIG. 11 is an internal circuit diagram of the cooling circuit shown in the block diagram,
FIG. 12 is an internal circuit diagram of the sterilization circuit shown in the block diagram, FIG. 13 is an internal circuit diagram of the cold storage circuit shown in the block diagram, and FIG. 14 is an internal circuit diagram of the third timer circuit shown in the block diagram. FIG. 15 is an electric circuit diagram showing the connection relationship between the relay contacts opened and closed by each relay shown in FIGS. 10 to 14 and each device, and FIG. 16 is a side sectional view of the takeout device showing the state in which frozen desserts are taken out. 17 is a front view showing a cleaning state of the extractor using the connector, and FIG. 18 is a side view similarly showing the extractor in a cleaning state. (5)...Cooling chamber, (9)...Takeout device, (2
2)...Water heater, (25)...Front fan breather, (29)...Front cooling solenoid valve, (33)...Rear fan breather, (37)...Front cooling solenoid valve, (4
6〉...Front hot gas solenoid valve, (48)...Rear hot gas solenoid valve, (79)...Vertical hole, (80)...
Side hole, (83)...Valve, (93A)...Outlet, (101)...Electric heater, (113)...
Cooling switch, (115)... Cold insulation switch, (12
0)...Cleaning circuit, (121)...Cooling circuit, (1
22)... Sterilization circuit, (123)... Cold storage circuit. Applicant Sanyo Oki Co., Ltd. and one other agent Patent attorney Shizuo Sano (XJ CV Ru)

Claims (1)

[Claims] 1. A frozen dessert that is equipped with a take-out device in front of the cooling chamber that cools the supplied frozen dessert stock solution, and that a path formed in the take-out device is opened by operating an opening/closing means, and the appropriately cooled frozen dessert stock solution is externally supplied from the take-out port. In the manufacturing apparatus, a cooling switch means, a cold preservation switch means, a hot water supply means for supplying hot water to the passageway from the opening/closing means to the outlet to clean the passageway, and a water supply means for supplying hot water to the passageway leading from the opening/closing means to the outlet, and for half-filling the frozen dessert concentrate in the cooling chamber. a cooling control means for controlling the operation of the cooling means of the refrigeration system so as to cool it to a frozen state; a heating means for heating and sterilizing the frozen dessert concentrate in the cooling chamber; A cold storage control means is provided for controlling the operation of the cooling means so as to cool the water, and when the cooling switch means is operated, a hot water supply operation based on the hot water supply means is started, and when a predetermined time has elapsed, the hot water supply operation is stopped and the hot water supply operation is stopped. A cooling operation based on the cooling control means is started, and when the cold preservation switch means is operated, the cooling operation is stopped and a sterilization operation based on the heating means is started, and after the sterilization operation is stopped, a cold preservation operation based on the cold preservation control means is started. A frozen dessert manufacturing device characterized by starting the process.