JP4614890B2 - Frozen confectionery manufacturing equipment - Google Patents

Description

  The present invention relates to a frozen confection manufacturing apparatus for manufacturing a frozen confection such as soft ice cream.

  Conventionally, this kind of frozen dessert manufacturing apparatus is equipped with a cooling device comprising a compressor, a condenser, a capillary tube, a cooling cylinder and a cooler equipped in a hopper (mix tank), and the refrigeration cycle of this cooling device is reversible by a four-way valve, When making frozen desserts, depressurize the liquefied refrigerant into the cooler and then flow to cool the cooling cylinder and hopper. On the other hand, when sterilizing the mix and equipment, the high-temperature refrigerant gas (hot gas) from the compressor is led to the cooler to dissipate the heat. It is configured to heat the cooling cylinder and the hopper by causing the device to act as a radiator.

  Then, a beater driven by a beater motor is installed in the cooling cylinder, and the mix in the cooling cylinder is stirred by the beater while the mix in the cooling cylinder is cooled by a cooler to produce a frozen dessert such as soft cream or sherbet. .

  In this case, the cooling method of the condenser includes an air-cooling type in which air is circulated and a water-cooling type in which cooling is performed with cooling water as disclosed in Patent Document 1, for example. Among these, in the case of using a water-cooled condenser, the drainage used for heat exchange with the refrigerant to condense as in Patent Document 1 is discharged to a drain receiver (receiving tray) provided below the take-out lever. Was taken.

  In such a configuration, since drainage with high temperature from the condenser is discharged to the drain receiver, the temperature of the drain receiver itself rises, and there is a problem that there is a risk of burns to the user or discomfort to the user. was there.

Therefore, in order to eliminate the inconvenience, a drain receiver as shown in Patent Document 2 has been developed. In this frozen dessert manufacturing apparatus, a drain connector is attached to the drain port formed on the lower surface of the drain receiver via a rubber packing, and a drain pipe is connected to the lower end of the drain cylinder part constituting the drain connector. The condenser drain pipe is connected to the connection part formed in the middle part of the drain cylinder part. As a result, the drainage received in the drain receiver is discharged to the outside through the drainage cylinder part and the drainage pipe constituting the drain connector, and the drainage from the condenser is connected to one end of the condenser drainage pipe. It flowed into the drain cylinder through the connecting portion and was discharged to the outside together with the drainage from the drain receiver.
JP-A-8-5166 JP 2003-111564 A

  However, in the drainage mechanism from the drain water and condenser in the frozen dessert manufacturing apparatus as described above, the condenser drain pipe connected to the condenser and the drain hose connected to the drain pipe are located in the main body. Since the drain connector and the drain pipe that constitute the connection portion are located on the front surface of the main body, that is, below the drain receiver, these connections are made through communication holes formed on the front surface of the main body, respectively. It was broken. For this reason, it is difficult to remove and attach the pipe connection. Therefore, the washing operation of the drainage mechanism has to be performed in a state of being attached to the main body, and there is a problem that the washing workability is poor.

  In addition, since the drainage mechanism has a large number of parts, there is a problem that assembly work becomes complicated and productivity is poor. Furthermore, since the piping such as the drain connector is attached below the drain receiver, there is a problem that it is not preferable in appearance.

  Therefore, the present invention has been made to solve the conventional technical problem, and maintenance work for drainage members constituting the drainage drainage device that discharges the drainage from the frozen dessert takeout portion and the drainage from the condenser by confluence. An object of the present invention is to provide a frozen dessert manufacturing apparatus capable of improving the appearance and improving the appearance of the frozen dessert manufacturing apparatus itself.

The frozen dessert manufacturing apparatus of the present invention is provided in the main body, and cools the mix while stirring the mix to cool the frozen dessert, the cooling device that cools the cooling cylinder, and the water-cooled type included in the cooling apparatus. A condenser, a frozen dessert take-out unit that is installed on the front of the main unit and takes out the frozen dessert produced by the cooling cylinder, and is detachably attached to the front of the main unit. The drain drainage device is provided with a drain receiver located on the front surface of the main body corresponding to the lower part of the frozen dessert takeout portion, and attached to the lower side of the drain receiver. The drainage member comprises a connection part connected to the drain outlet of the drain receiver, and a drainage pipe extending from the connection part to the main body side and detachably connected to the drainage hose in the main body When, An installation in which at least the drainage pipe and the junction pipe part are formed on the front surface of the main body, integrally having one end of the drainage path from the condenser and detachably connected to the main body side protruding from the middle of the drainage pipe The drainage member and the merging pipe part are detachably attached to the front surface of the main body in a state where the drainage pipe and the junction pipe portion are inserted into the main body, and close the mounting hole. The mounting plate portion is formed integrally .

The ice confection producing device of the invention of claim 2, in the above invention, the connecting portion, while being a dish-shaped form which is open upward so as to surround the discharge port of the receiving drain, the inner wall of the connecting portion, drain An engaging portion is formed that is detachably engaged with the peripheral wall of the end portion of the drain outlet of the receiver .

  According to a third aspect of the present invention, there is provided a frozen dessert producing apparatus, wherein the drainage pipe reaching the connecting portion of the drainage member is inclined obliquely downward.

  According to a fourth aspect of the present invention, there is provided a frozen dessert producing apparatus, wherein the merging pipe portion is detachably connected to a condenser drain pipe made of a deformable member, and the condenser drain pipe avoids the drain pipe. It is characterized by constituting a U-trap that rises after descending.

  According to the present invention, a cooling cylinder that is provided in the main body and that manufactures frozen dessert by cooling the mix while stirring, a cooling device that cools the cooling cylinder, and a water-cooled condenser included in the cooling device And a frozen dessert take-out section that is provided on the front face of the main body and takes out the frozen dessert produced by the cooling cylinder; In the frozen confectionery manufacturing apparatus comprising the drainage drainage device for discharging, the drainage drainage device has a drain receiver located on the front surface of the main body corresponding to the lower part of the frozen dessert takeout portion, and drainage attached to the lower side of the drain receiver. The drainage member comprises a connection part connected to the drain outlet of the drain receiver, a drainage pipe extending from the connection part to the main body side and detachably connected to the drainage hose in the main body, An installation in which at least the drainage pipe and the junction pipe part are formed on the front surface of the main body, integrally having one end of the drainage path from the condenser and detachably connected to the main body side protruding from the middle of the drainage pipe Since it can be inserted into and removed from the main body through the hole, the drainage from the condenser can be discharged using the drainage path from the drain receiver. In addition, it is possible to easily remove the drainage path from the drainage hose connected to the drainage pipe and the condenser connected to the junction pipe section by pulling out the drainage member configured integrally from the main body. The drain receiver can be detached from the main body.

  Thereby, it becomes possible to perform maintenance work such as cleaning in a state where the drain receiver and the drainage member are detached from the main body, and the hygiene management of the device becomes easy. In addition, since the drain drainage device is composed of a drain receiver and a drainage member, it is possible to significantly reduce the number of parts compared to the drainage mechanism from the conventional drain receiver and condenser, and the manufacturing cost can be reduced. Reduction and handling can be improved. Furthermore, since at least the drainage pipe and the junction pipe part are accommodated in the main body through the mounting holes, the disadvantage that the drainage pipe and the junction pipe part are exposed to the outside can be avoided. It becomes possible to improve the beauty of itself.

In addition, the drainage member is detachably attached to the front surface of the main body in a state where the drainage pipe and the junction pipe portion are inserted into the main body, and a mounting plate portion that closes the mounting hole is integrally formed. The mounting structure of the member can be simplified, and the mounting hole formed on the main body side can be closed by the mounting plate portion in a state where the drainage member is mounted on the main body. It is possible to suppress the inconvenience of dust and dirt entering the main body.

According to the invention of claim 2, in the above invention, the connecting portion is formed in a dish-like shape that opens upward so as to surround the drain outlet of the drain receiver, and the inner wall of the connecting portion is provided with a drain receiver. Since the engaging portion that is detachably engaged with the peripheral wall of the end portion of the drain port is formed, the drain receiver can be easily detached from the connecting portion, and maintenance work such as cleaning can be performed.

  According to the invention of claim 3, in each of the above-mentioned inventions, the drainage pipe reaching the connecting portion of the drainage member is inclined obliquely downward, so that the drainage flowing into the drainage pipe via the drain receiver and the drainage of the condenser Drainage that has flowed into the drainage pipe from the path through the junction pipe portion can be smoothly led out to the drainage hose. Thereby, smooth drainage can be enabled.

  According to the invention of claim 4, in each of the above inventions, the confluence pipe portion is detachably connected to a condenser drain pipe made of a deformable member, and the condenser drain pipe avoids the drain pipe. Since the U trap that rises after descending is configured, it is possible to suppress the inconvenience of insects that have invaded through the drain receiver or drainage member, gas that corrodes the copper pipe, etc., entering the condenser drain pipe. become.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a partially longitudinal perspective view of a frozen dessert manufacturing apparatus SM according to an embodiment of the present invention, FIG. 2 is a refrigerant circuit diagram of a cooling apparatus R of the frozen dessert manufacturing apparatus SM, and FIG. 3 is a block diagram of a control device C of the frozen dessert manufacturing apparatus SM. Is shown.

  The frozen dessert manufacturing apparatus SM of the embodiment is an apparatus for manufacturing and selling frozen confectionery such as soft cream and sherbet (shake). In FIG. A hopper 2 for storing the frozen confectionery mix) is provided. The hopper 2 has an opening on the upper surface, and the upper surface opening is closed so as to be freely opened and closed by a heat insulating cover member 3 that is detachably mounted thereon. Removed.

  On the other hand, a hopper cooler 4 is wound around the hopper 2, and the mix in the hopper 2 is kept cold by the hopper cooler 4. Further, a hopper stirrer (stirring device) 5 called an impeller is provided at the inner bottom portion of the hopper 2 and is rotationally driven by a stirring motor 6 (shown in FIG. 3) comprising an induction motor provided below. The

  Furthermore, a mix level sensor 7 composed of a pair of conductive electrodes is attached to a position at a predetermined height on the side wall of the hopper 2, and the electrodes of the mix level sensor 7 are electrically connected to form a predetermined amount in the hopper 2 (mix It is detected whether or not a mix that is equal to or higher than the height at which the level sensor 7 is provided, i.e., high, or a predetermined amount or less, i.e., low. And this mix level sensor 7 is connected to the control apparatus C (FIG. 3) mentioned later.

  The stirring motor 6 is controlled by a control device C, and a stirring motor adjustment switch 56 (FIG. 3) for adjusting the rotation of the stirring motor 6 is connected to the control device C. This agitation motor adjustment switch 56 is multi-staged by an up / down key provided on the substrate, and in this embodiment, seven stages (“1” (weak), “2”,... “6”, “7” (Strong)) can be adjusted, and the number of rotations of the agitation motor 6 when the mix level sensor 7 is greater than or equal to a predetermined amount (High) can be selected.

  With the above configuration, when the control device C detects that the mix level sensor 7 is greater than or equal to a predetermined amount (High), the stirring motor adjustment switch 56 controls the operation of the stirring motor 6. That is, when the adjustment switch 56 is set to “1”, for example, the stirring motor 6 is turned on for 0.3 seconds, and then intermittent operation is performed with a relatively long OFF time for repeating OFF for 1.4 seconds. . Thereby, the stirring motor 6 rotates at a low speed.

  When the adjustment switch 56 is set to “2”, the stirring motor 6 is turned on for 0.5 seconds, and then turned off for 1.2 seconds. Each time the set value increases, the ON time of the stirring motor 6 increases and the OFF time is decreased, so that the rotational speed of the stirring motor 6 increases. When the adjustment switch 56 is the set value “7”, the agitation motor 6 is turned on for 1.5 seconds and then turned off for 0.2 seconds. This state is the maximum speed of the stirring motor 6.

  When a predetermined amount of mix exists in the hopper 2 as described above, the rotation speed of the agitation motor 6 is appropriately adjusted, and the agitation force can be adjusted in multiple stages. The mix can be agitated in an optimum state in accordance with the rise in the outside air temperature.

  Further, when the control device C detects that the mix level sensor 7 is below a predetermined amount (Low), the stirring motor 6 is turned on for 0.2 rows regardless of the setting of the stirring motor adjustment switch 56. After that, intermittent operation is performed with a relatively long OFF time for repeating OFF for 2.0 seconds. Thereby, the rotation of the agitation motor 6 becomes the lowest speed.

  Furthermore, when the mix in the hopper 2 is a predetermined amount or less (Low), the heat sterilization process described later is not performed, that is, the circulation of the hot gas is stopped.

  This hopper stirrer 5 stirs the mix in the hopper 2 so that it does not freeze, but the mix is put into the hopper 2 in a predetermined amount or more, and the refrigerant gas flows in the hopper cooler 4 in the reverse direction of cooling, That is, when the hopper 2 is sterilized by heating with hot gas, it is driven to rotate.

  On the other hand, 8 in FIG. 1 is a cooling cylinder for producing a frozen dessert by rotating and stirring a mix appropriately supplied from a hopper 2 by a pipe-shaped mix feeder 9 by a beater 10, and a cylinder cooler 11 is provided around the cylinder. It is attached. The beater 10 is rotated via a beater motor 12, a drive transmission belt, a speed reducer 13, and a rotating shaft. In the manufactured frozen dessert, the plunger 16 is moved up and down by operating the take-out lever 15 disposed in the freezer door 14 on the front, the extraction path (not shown) is opened, and the beater 10 is rotationally driven. Is taken out. The freezer door 14, the takeout lever 15 and the plunger 16 constitute a frozen dessert takeout section.

  Next, the cooling device R of the frozen dessert manufacturing apparatus SM will be described with reference to FIG. In FIG. 2, R is a reversible cooling device. Hereinafter, the cooling device R will be described. 18 is a compressor, 19 is a refrigerant discharged from the compressor 18, and the flow direction is different depending on whether a cooling cycle (solid arrow) or a heating cycle (broken arrow) is configured. On the other hand, the four-way valve 20 for switching is a water-cooled condenser. In FIG. 2, 20 is shown as a single condenser, but in this embodiment, it is assumed that two condensers 20 and 20 are provided as shown in FIG.

  The condenser 20 has a double pipe structure including an outer refrigerant pipe 57 and an inner water flow pipe 58, and the double pipe is spirally wound. The refrigerant flowing in the refrigerant pipe 57 is cooled by exchanging heat with cooling water (tap water) that is always circulated through the water flow pipe 58 via the water-saving valve 63. That is, when the four-way valve 19 constitutes a cooling cycle, the high-temperature and high-pressure gas refrigerant discharged from the compressor 18 flows into the refrigerant pipe 57 of the condenser 20 through the check valve 21 and condenses there. It liquefies and becomes a liquid refrigerant. The detailed structure around the condenser 20 will be described later.

  When this liquid refrigerant exits from the check valve 22 through the dry core (dryer) 23, it is divided into two directions, one of which is depressurized through the cylinder cooling valve 24 and the cooling cylinder capillary tube 25 and flows into the cylinder cooler 11. Then, it evaporates and cools the cooling cylinder 8. The other is depressurized through the hopper cooling valve 26 and the preceding hopper capillary tube 27, flows into the hopper cooler 4 and evaporates there, cools the hopper 2, and then flows out through the subsequent capillary tube 28.

  Then, the refrigerant after cooling the cooling cylinder 8 and the hopper 2 joins in the accumulator 30 and then undergoes a cooling operation (sales state) that returns to the compressor 18 through the four-way valve 19 (flow of solid arrows). Note that a hopper sensor 32 (FIG. 3) for detecting the temperature of the hopper 2 is attached to the hopper 2, and the cooling cylinder 8 is substantially in the cooling cylinder 8 depending on the temperature of the cooling cylinder 8. A cylinder sensor 31 (FIG. 3) for detecting the temperature of the mix is attached.

  By the way, in the cooling operation, it is necessary to keep the cooling cylinder 8 and the hopper 2 cooled to a predetermined temperature in order to obtain a high-quality frozen dessert. Moreover, in order to make use of the flavor peculiar to each mix according to the kind of mix, it is necessary for the user to keep the cooling cylinder 8 and the hopper 2 cooled to an arbitrary temperature. For this purpose, the cylinder sensor 31 for detecting the temperature of the cooling cylinder 8 is provided, and the cylinder sensor 31 turns on (opens) the cylinder cooling valve 24 by equilibrium temperature control as will be described in detail later, and turns on the compressor 18 for cooling. When the cylinder cooling valve 24 is OFF (closed), the hopper cooling valve 26 is opened / closed and the compressor 18 is turned ON / OFF. That is, the cooling of the cooling cylinder 8 is prioritized and the hopper cooling valve 26 is turned on under the condition that the cylinder cooling valve 24 is turned off.

  After the sale is made under the above-described cooling operation, the mix is sterilized by the heating method when the store is closed. In this case, the cooling device R is switched from the cooling cycle to the heating cycle operation. That is, the four-way valve 19 is operated to cause the refrigerant to flow as indicated by a dotted arrow. Then, the high-temperature and high-pressure refrigerant gas from the compressor 18, that is, the hot gas, is divided into two hands through the four-way valve 19 and the accumulator 30, one directly to the cylinder cooler 11 and the other to the hopper cooling via the check valve 33. Each of them flows into the vessel 4 to generate a heat dissipation action, and the cooling cylinder 8 and the hopper 2 are heated at a predetermined sterilization temperature for a predetermined time.

  The liquefied refrigerant after heat dissipation merges in the pipe 65 via the cylinder hot gas valve 34 and the hopper hot gas valve 35, respectively, and then flows into the refrigerant pipe 57 of the condenser 20 through the check valve 40, where it is separated into gas and liquid. The Thereafter, the refrigerant gas exits from the refrigerant pipe 57 of the condenser 20 and flows into the reverse solenoid valve (open / close valve) 36 and the reverse capillary tube 37 connected in parallel through the refrigerant pipe 59 connected to the downstream side of the check valve 21. Is done. The refrigerant gas that has passed through the reverse electromagnetic valve 36 or the reverse capillary tube 37 forms a heating cycle that returns to the compressor 18 via the four-way valve 19 via the branch pipe 60 connected to the upstream side of the check valve 21.

  Here, the sterilization / cooling sensor 38 (FIG. 3) is attached to the cooling cylinder 8. The sterilization / cooling sensor 38 controls ON / OFF of the cylinder hot gas valve 34 and the compressor 18 at preset upper and lower set temperature values within a predetermined range so that a prescribed sterilization temperature is maintained for the mix. . Although the sterilization / cooling sensor 38 measures the heating temperature of the cooling cylinder 8, it can be determined that the measured temperature is substantially close to the heating temperature of the mix, so the sterilization / cooling sensor 38 is also used as a mix temperature detection sensor. it can. Open / close control of the reverse solenoid valve 36 is performed using the mix temperature information detected by the sterilization / cooling sensor 38.

  On the other hand, the hopper 2 is heated by a hopper sensor 32 that detects the temperature of the hopper 2, and the hopper hot gas valve 35 and the compressor 18 are turned on and off at the same set temperature value set in the cooling cylinder 8. .

  Further, the sterilization / cooling sensor 38 shifts to cooling after heat sterilization and maintains a certain low temperature state until the point of sale the next day, that is, the cool temperature (about + 8 ° C. to + 10 ° C.). ON / OFF control and ON / OFF control of the cylinder cooling valve 24 and the hopper cooling valve 26 are performed. Further, the reverse solenoid valve 36 is controlled to open and close at the mix detection temperature of the sterilization / cooling sensor 38 in order to suppress the high load operation of the compressor 18.

  In FIG. 1, 44 is an electrical box, 45 is a drain receiver attached to the front surface of the main body 1 corresponding to the lower part of the freezer door 14, and 73 is a spear child attached to the drain receiver 45. Reference numeral 78 denotes a drainage member connected to the drain receiver 45. The structure around the drain receiver 45 will be described later. A water tap 55 is used to supply water to the hopper 2 and the cooling cylinder 8 during the mix cleaning. Furthermore, reference numeral 43 denotes a bypass valve, which plays a role of preventing overload of the compressor 18.

  In FIG. 3, the control device C is configured on a substrate housed in the electrical box 44 and is designed around a general-purpose microcomputer (control means) 46. The microcomputer 46 includes the cylinder sensor 31. The outputs of the hopper sensor 32 and the sterilization / cooling sensor 38 are input, and the microcomputer 46 outputs the compressor motor 18M of the compressor 18, the beater motor 12, the stirrer motor 6, the cylinder cooling valve 24, and the cylinder hot gas valve 34. A hopper cooling valve 26, a hopper hot gas valve 35, a four-way valve 19, a reverse solenoid valve 36, and a bypass valve 43 are connected.

  In this figure, 47 is a current sensor (CT) for detecting the energizing current of the compressor motor 18M, 48 is a current sensor (CT) for detecting the energizing current of the beater motor 12, and any output is input to the microcomputer 46. ing. An extraction switch 51 is opened and closed by operating the take-out lever 15, and its contact output is input to the microcomputer 46.

  49 is a cooling setting volume for adjusting the cooling setting of the frozen dessert in three stages of “1” (weak), “2” (medium), and “3” (strong), and 53 is a threshold value of the beater motor current ( This is a threshold setting volume for arbitrarily setting (setting value) in the range of 2.3 A to 3.3 A, for example, and any output is input to the microcomputer 46. Reference numeral 52 denotes a key input circuit including various switches for instructing the microcomputer 46 to perform various operations. The cooling setting volume 49, the key input circuit 52, and the threshold setting volume 53 are provided on the substrate of the control device C. It is attached. Furthermore, an LED display 54 for performing various display operations such as an alarm is connected to the output of the microcomputer 46.

  Reference numeral 61 denotes the above-described equilibrium temperature control mode (first operation mode) in which the cooling setting of the frozen dessert is adjusted by the cooling setting volume 49 to control the cooling operation, and the cooling set temperature of the frozen dessert is arbitrarily set and cooled. A changeover switch for selectively switching a manual mode (second operation mode) for control, and is mounted on the substrate. Reference numeral 70 denotes a temperature setting switch for setting a cooling temperature when the manual mode is selected by the changeover switch 61. Reference numeral 71 denotes a display changeover switch for switching display of a defrost lamp DL (to be described later) during the defrosting process. Provided on top.

  Next, FIG. 4 shows a control panel 50 provided in the upper front portion of the frozen dessert manufacturing apparatus SM. The control panel 50 includes a cooling operation switch SW 1, a sterilization switch SW 2, a cleaning switch SW 3, a defrost switch SW 4, a stop switch SW 5 that constitute the key input circuit 52, a cooling lamp FL that constitutes the LED display 54, and a defrost lamp. DL etc. are arranged.

  With the above configuration, the operation of the frozen dessert manufacturing apparatus SM will be described with reference to FIGS. When the frozen dessert manufacturing apparatus SM starts operation, as shown in the timing charts of FIGS. 7 and 8, cooling operation (cooling process, defrost process), sterilization / cooling operation (sterilization temperature rising process, sterilization holding process, cold holding pull-down process, Each operation of the cold holding process) is executed. First, the cooling control when the changeover switch 61 is switched to the equilibrium temperature control mode will be described. Here, it is assumed that the setting of the cooling setting volume 49 is currently set to “1” for the cooling setting of the frozen dessert.

  First, the cooling operation will be described with reference to the flowchart of FIG. When the cooling operation switch SW1 provided in the key input circuit 52 is operated, the microcomputer 46 resets all, and then the microcomputer 46 sets the cooling flag in step S1 in FIG. Judgment is made.

  Assuming that the cooling flag is reset at the start of operation (pull-down), based on the output of the cylinder sensor 31 in step S2, the current mix temperature in the cooling cylinder 8 is set to the cooling ON point temperature (cooling end temperature described later). + 0.5 ° C) or higher. If the temperature of the mix is high, the process proceeds to step S3, the measurement timer (which the microcomputer 46 has as its function) is cleared, and the current value of the current beater motor current sensor 48 is set to the current value before t seconds in step S4. In step S5, the cooling flag is set and the cooling operation is executed (step S6).

  In this cooling operation, the microcomputer 46 executes balanced current control described below. That is, the microcomputer 46 operates the compressor 18 (compressor motor 18M), and the four-way valve 19 is set to the cooling cycle (non-energized). Then, the cylinder cooling valve 24 is turned on (opened), the hopper cooling valve 26 is turned off (closed), and the cylinder hot gas valve 34 and the hopper hot gas valve are turned off. Further, the beater 10 is rotated by the beater motor 12.

  Thereby, the mix in the cooling cylinder 8 is cooled by the cylinder cooler 11 and stirred by the beater 10 as described above. Here, as described above, even if the cooling setting of the cooling setting volume 49 is set to “1”, the microcomputer 46 is forcibly set to “3” during the pull-down. In the cooling setting “3”, the t second is 40 seconds, the TA (ampere, which will be described later) is 0.1 A, the cooling setting “2” is 20 seconds, the TA is 0.1 A, and the cooling setting “1” is t. Assume that the second is 20 seconds and the TA is 0.2A.

  Next, the microcomputer 46 proceeds from step S1 to step S7, determines whether or not the measurement timer is measuring, and if not measuring, starts measurement in step S8. Next, in step S9, it is determined whether the count of the measurement timer has elapsed t seconds. If not, the process returns. When t seconds (in this case, 40 seconds) have elapsed from the start of counting by the measurement timer, the microcomputer 46 calculates the current value of the current beater motor 12 and the current value before t seconds based on the output of the beater motor current sensor 48 in step S10. It is determined whether or not the difference is equal to or less than TA (in this case, 0.1 A). If not, the process returns to step S3, the measurement timer is cleared, and steps S4 to S6 are executed.

  Thereafter, this is repeated to cool the mix in the cooling cylinder 8 while stirring. Here, the temperature of the mix decreases with the progress of cooling, the current value of the beater motor 12 increases as it approaches the freezing point unique to the mix, and the change gradually slows down. When the change in the current value during 40 seconds (t seconds) (the difference between the current beater motor current value and the current value before t seconds) is 0.1 A (TA) or less, the process proceeds from step S10 to step S11. The beater motor current value at this time is defined as a cooling end current value (OFF point current value).

  In step S11, the current mix temperature is set to the cooling end temperature, and the microcomputer 46 determines based on the output of the cylinder sensor 31 whether or not the mix temperature is equal to or lower than the threshold value.

  The mix cooled while being stirred in the cooling cylinder 8 can be sold at a predetermined low temperature. This threshold value is appropriately set by a threshold setting volume 53 according to the type of mix. That is, the threshold value should be set high for a mix that is a relatively soft product, and low for a mix that is a relatively hard product. If the mix temperature is lower than the threshold value, the process proceeds to step S15.

  Then, in step S15, the current mix temperature is set to the cooling end temperature, the cooling flag is reset in step S16, and cooling is stopped in step S17.

  That is, in this cooling stop, the microcomputer 46 turns off the cylinder cooling valve 24 and turns on the hopper cooling valve 26 instead. Thereby, the cooling of the cooling cylinder 8 is stopped, and the hopper 2 is now cooled by turning on the hopper cooling valve 26. Since the pull-down is completed, the microcomputer 46 returns the cooling setting to “1” set by the volume 49.

  The microcomputer 46 returns to step S1, but since the cooling flag is reset here, the microcomputer 46 now proceeds to step S2, and based on the output of the cylinder sensor 31, the current mix temperature is set to the cooling end temperature +0. It is determined whether the temperature has risen to 5 ° C., that is, the cooling ON point temperature or higher. If not, the process proceeds to step S16, and thereafter this is repeated. The microcomputer 46 turns off the hopper cooling valve 26 and stops the compressor 18 in this case when the temperature of the hopper 2 is also cooled below a predetermined temperature based on the output of the hopper sensor 32. . In the embodiment, the hopper cooling valve 26 is turned on at + 10 ° C. and turned off at + 8 ° C.

  When the temperature of the mix (frozen dessert) rises to the cooling ON point temperature + 0.5 ° C. or higher, the microcomputer 46 proceeds from step S2 to step S3, and thereafter starts cooling the cooling cylinder 8 in the same manner.

  Here, when abnormal freezing occurs in the cooling cylinder 8 and freezing occurs around the beater 10, the mix temperature other than the freezing mix does not decrease to such an extent that it can be sold as a product. In such a situation, since the load applied to the beater 10 does not increase so much, the increase in the energization current value of the beater motor 12 becomes slow (or does not increase), and the cooling is stopped.

  When the microcomputer 46 proceeds from step S10 to step S11, if the mix temperature in the cooling cylinder 8 is higher than the threshold value in step S11, the microcomputer 46 proceeds to step S12 and determines whether or not the current cooling setting is “3”. to decide. At this time, since the cooling setting is “1”, the microcomputer 46 proceeds to step S13 and shifts the cooling setting by one step (that is, shifts to “2” in this case).

  And it returns to step S3 from step S13, and while clearing a measurement timer, said step S4-step S6 are performed. Thereafter, this is repeated to cool the mix in the cooling cylinder 8 while further stirring. Then, the current value rise of the beater motor 12 (the difference between the current value of the beater motor 12 and the current value before t seconds) for 20 seconds (t seconds) set by the cooling setting “2” is 0.1 A ( TA) When the time is equal to or less, the process proceeds from step S10 to step S11.

  In step S11, similarly, the microcomputer 46 determines whether the temperature of the mix in the cooling cylinder 8 is equal to or lower than the threshold based on the output of the cylinder sensor 31. If the temperature of the mix in the cooling cylinder 8 is still higher than the threshold value, the microcomputer 46 proceeds to step S12 and determines whether or not the current cooling setting is “3”. At this time, since the cooling setting is “2”, the microcomputer 46 proceeds to step S13 and shifts the cooling setting by one step (ie, shifts to “3” in this case).

  And it returns to step S3 from step S13, and while clearing a measurement timer, said step S4-step S6 are performed. Thereafter, this is repeated to cool the mix in the cooling cylinder 8 while further stirring. Then, the current value rise of the beater motor 12 (the difference between the current value of the beater motor 12 and the current value before t seconds) for 40 seconds (t seconds) set by the cooling setting “3” is 0.1 A ( TA) When the time is equal to or less, the process proceeds from step S10 to step S11.

  In step S11, similarly, the microcomputer 46 determines whether the temperature of the mix in the cooling cylinder 8 is equal to or lower than the threshold based on the output of the cylinder sensor 31. If the mix temperature is still higher than the threshold value, the microcomputer 46 proceeds to step S12 to determine whether or not the current cooling setting is “3”. At this time, since the cooling setting is shifted to “3”, the microcomputer 46 proceeds to step S18 and blinks the inspection lamp CL of the LED display 54. In step S17, the cooling of the cooling cylinder 8 is stopped as described above.

  The microcomputer 46 turns off the inspection lamp CL if it returns to normal by resuming cooling thereafter, that is, if the energization current of the beater motor 12 rises to a threshold value.

  Next, the cooling control when the manual switch is switched to the manual mode by the selector switch 61 will be described with reference to the flowchart of FIG. When switched to the manual mode, the cooling set temperature is arbitrarily set by the temperature setting switch 70. When the cooling operation switch SW1 of the key input circuit 52 is operated, after resetting everything, the microcomputer 46 sets the cooling flag in step S20 in FIG. 6 or resets it to “0”. Judgment is made.

  Assuming that the cooling flag is reset at the start of operation (pull-down), based on the output of the cylinder sensor 31 at step S21, the current mix temperature in the cooling cylinder 8 is slightly higher than the cooling set temperature. Judge whether or not it is above. If the temperature of the mix is high, the cooling flag is set in step S22 and the cooling operation is executed (step S23).

  That is, the microcomputer 46 operates the compressor 18 (compressor motor 18M), and the four-way valve 19 is set to the cooling cycle (non-energized). Then, the cylinder cooling valve 24 is turned on (opened), the hopper cooling valve 26 is turned off (closed), and the cylinder hot gas valve 34 and the hopper hot gas valve are turned off. Further, the beater 10 is rotated by the beater motor 12. Thereby, the mix in the cooling cylinder 8 is cooled by the cylinder cooler 11 and stirred by the beater 10 as described above.

  Next, the microcomputer 46 proceeds from step S20 to step S24, and determines whether or not the current mix temperature is equal to or lower than the cooling OFF point temperature which is slightly lower than the cooling set temperature. If the temperature of the mix is high, the process returns to step S23 to perform the cooling operation.

  Thereafter, this is repeated to cool the mix in the cooling cylinder 8 while stirring. Here, the temperature of the mix decreases with the progress of cooling, and when the mix temperature becomes equal to or lower than the cooling OFF point temperature, the cooling flag is reset in step S25 and the cooling is stopped in step S26.

  That is, in this cooling stop, the microcomputer 46 turns off the cylinder cooling valve 24 and turns on the hopper cooling valve 26 instead. Thereby, the cooling of the cooling cylinder 8 is stopped, and the hopper 2 is now cooled by turning on the hopper cooling valve 26.

  Then, the microcomputer 46 returns to step S20, but since the cooling flag is reset here, the microcomputer 46 now proceeds to step S21, and based on the output of the cylinder sensor 31, the current mix temperature is equal to or higher than the cooling ON point temperature. It is determined whether or not it has risen. If not, the process proceeds to step S26, and this is repeated thereafter. The microcomputer 46 turns off the hopper cooling valve 26 and stops the compressor 18 in this case when the temperature of the hopper 2 is also cooled below a predetermined temperature based on the output of the hopper sensor 32. . In the embodiment, the hopper cooling valve 26 is turned on at 10 ° C. and turned off at 8 ° C.

  When the temperature of the mix (frozen dessert) rises to be equal to or higher than the cooling ON point temperature, the microcomputer 46 proceeds from step S21 to step S22, and thereafter similarly starts cooling the cooling cylinder 8.

  In this way, by operating the changeover switch 61, the cooling operation mode by the microcomputer 46 of the frozen dessert manufacturing apparatus SM can be executed by switching between the equilibrium temperature control mode and the manual mode. In addition, other than that, in the equilibrium temperature control mode, the operation mode can be appropriately selected and executed as required by the user, and convenience is improved.

  Next, the defrost process in FIG. 7 will be described. This defrosting process is executed to eliminate the so-called “sagging” of the frozen dessert in the cooling cylinder 8. If the frozen dessert in the cooling cylinder 8 is stirred and cooled in a state where it is not sold for a long time, the softening proceeds and the hardness that can be used as a soft cream product cannot be maintained. For example, in the case of the frozen dessert manufacturing apparatus SM of the embodiment, it has been empirically confirmed that it occurs when 10 frozen desserts are not extracted within two and a half hours. The ten pieces are the amount by which all the frozen desserts in the cooling cylinder 8 are taken out.

  The microcomputer 46 monitors this during the cooling process on the basis of a timer and a signal from the extraction switch 51 as its functions, and the number of extractions in the continuous two and a half hours is less than 10 When the “occurrence condition” is satisfied, the defrost lamp DL is blinked at a short interval of, for example, 0.2 seconds to warn the user of the occurrence of “sagging”. The user can determine that there is a risk that the frozen dessert will “sag” due to the quick flashing of the defrost lamp DL.

  In such a case, the user operates the defrost switch SW4. When the defrost switch SW4 of the key input circuit 52 is operated during the cooling operation, the microcomputer 46 performs ON / OFF control of the cylinder hot gas valve 34, warms the cooling cylinder 8 with hot gas, and mixes the predetermined amount. The temperature is raised to (+ 4 ° C.). Thereby, the frozen dessert in the cooling cylinder 8 is once melted. During the defrost process, the microcomputer 46 switches the defrost lamp DL to blink at intervals of 0.5 seconds, for example. Then, when the defrost process is completed, the defrost lamp DL is turned off, and then the microcomputer 46 continues the cooling operation and returns the mix to the cooling process again.

  Here, depending on the user, there is a case where it is not necessary to blink the defrost lamp DL that warns of the danger of “sagging”. This is because the blinking of the lamp on the control panel 50 also deteriorates the impression given to the customer, which may be undesirable in business. Therefore, when the warning is not required, the display changeover switch 71 is operated to switch the warning to unnecessary. When the display changeover switch 71 is operated and the warning is not required, the microcomputer 46 does not execute the fast flashing of the defrost lamp DL even if the “sagging” occurrence condition as described above is satisfied. As a result, the anxiety given to users and customers can be resolved. However, in actuality, when such a condition is satisfied, the microcomputer 46 uses a display unit (not shown) on the board to execute a “sag” warning display where the customer cannot see it.

  Next, the sterilization / cooling operation (the sterilization temperature rising process, the sterilization holding process, the cold holding pull-down process, and the cold holding process) of FIG. 8 will be described. When the sterilization switch SW2 of the key input circuit 52 is operated, the microcomputer 46 starts the sterilization / cooling operation under the condition that the mix does not run out.

  The microcomputer 46 switches the refrigerant circuit from the cooling cycle to the heating cycle by the four-way valve 19. As a result, a sterilization temperature raising step is executed in which hot gas is alternately supplied to the cylinder cooler 11 and the hopper cooler 4 to raise the temperature of the cooling cylinder 8 and the hopper 2. The refrigerant discharged from the cylinder cooler 11 and the hopper cooler 4 enters the refrigerant pipe 57 of the condenser 20 through the pipe 65, where it exchanges heat with the cooling water flowing through the water flow pipe 58, and then reverses with the reverse solenoid valve 36. The connection point of the capillary tube 37 is reached. Here, the microcomputer 46 always closes the reverse solenoid valve 36. Therefore, the refrigerant gas is always decompressed by the reverse capillary tube 37 and then returns to the compressor 18.

  The reason why the refrigerant is returned to the compressor 18 via the reverse capillary tube 37 is to prevent liquid back (suction of liquid refrigerant) to the compressor 18, but when sterilization / cooling operation is performed in such a state, The pressure difference between the suction side and the discharge side of the compressor 18 increases, the compressor 18 is overloaded, and the energization current of the compressor motor 18M increases. The microcomputer 46 monitors the energization current of the compressor motor 18M with the current sensor 47, and opens the reverse solenoid valve 36 when the current rises to, for example, 5.2A.

  As a result, the refrigerant flowing out of the condenser 20 returns to the compressor 18 through the reverse electromagnetic valve 36 instead of the reverse capillary tube 37 due to the difference in flow path resistance, so the load on the compressor 18 is reduced. For example, when the energization current of the compressor motor 18M drops to 3.6 A, the microcomputer 46 performs the operation of closing the reverse solenoid valve again.

  When this sterilization temperature raising process is completed, the process proceeds to the sterilization holding process. This time, based on the outputs of the cylinder sensor 31 and the hopper sensor 32, the microcomputer 46 includes the compressor 18, the cylinder hot gas valve 34, and the hopper hot gas valve 35. Are controlled so as to satisfy the total heating time of about 40 minutes in the heating temperature range of + 69 ° C. to + 72 ° C.

  This sterilization temperature rising and sterilization holding process is displayed by the sterilization monitor lamp PL of the LED display 54. When the sterilization holding process is completed, the microcomputer 46 switches the refrigerant circuit to the cooling cycle by the four-way valve 19, and the cold holding pull-down process. Migrate to This cold transfer is also displayed on the LED display 54.

  In the cold insulation pull-down process that continues from the sterilization holding process, cooling is started under the condition that the temperature falls below a predetermined temperature within a predetermined time. At this time, based on the output of the compressor motor current sensor 47, the microcomputer 46 opens the cylinder cooling valve 24 and the hopper cooling valve 26 when the compressor motor current value is 5.8 A or less. Since the temperature of both the cooling cylinder 8 and the hopper 2 is high, the load on the compressor 18 increases, and when the compressor motor current value increases and reaches 5.8 A (first upper limit value) or more, the hopper cooling valve 26 is closed. At this time, the cylinder cooling valve 24 is still opened. Since the hopper cooling valve 26 is opened, when the compressor motor current value gradually reaches 6.0 A (second upper limit value), the hopper cooling valve 26 is further closed. Since both the cooling valves 24 and 26 are closed, when the compressor motor current value drops and reaches 5.3 A (lower limit value) again, the cylinder cooling valve 24 and the hopper cooling valve 26 are opened. The Thereafter, by repeating this, the cooling cylinder 8 and the hopper 2 are gradually cooled, so that the compressor 18 is not overloaded. Finally, the cooling cylinder 8 and the hopper 2 are cooled to a temperature range of + 8 ° C. to + 10 ° C.

  Thus, at the start of the cold insulation pull-down process, both the cooling valves 24 and 26 are opened to start cooling of both the cooling cylinder 8 and the hopper 2, and when the compressor motor current value reaches 5.8A from this state, When the cylinder cooling valve 24 is closed and the compressor motor current value still increases to 6.0 A, the hopper cooling valve 26 is also closed and both the cooling valves 24 and 26 are closed. As a result, the time required for the cold insulation pull-down process can be shortened.

  Then, the process proceeds to a cold insulation process. In the cold insulation process, based on the outputs of the sterilization / cold insulation sensor 38 and the hopper sensor 32, the microcomputer 46 compresses the compressor motor 18M, the cylinder cooling valve 24, and the hopper cooling valve 26. ON / OFF control. Then, when the stop switch SW5 is operated, the frozen dessert manufacturing apparatus SM stops its operation.

  Next, drainage paths of the condenser 20 and the drain receiver 45 will be described with reference to FIGS. 9 to 12. 9 is a perspective view for explaining the drainage path of the frozen dessert manufacturing apparatus SM of FIG. 1, FIG. 10 is a perspective side view for explaining the drainage path of the frozen dessert manufacturing apparatus of FIG. 1, and FIG. FIG. 12 is a cross-sectional view of the drainage member 78 of the frozen dessert manufacturing apparatus SM in FIG. 1.

  As shown in FIGS. 9 and 10, two condensers 20 are installed in parallel with the compressor 18 in a machine room 72 formed in the lower part of the frozen dessert manufacturing apparatus main body 1. A water supply port 58A is provided at the lower end of the water flow pipe 58 of each condenser 20, 20, and this water supply port 58A is connected to a water pipe (not shown) to supply cooling water (tap water). The water-saving valves 63 and 63 are connected to the downstream side of each. The water flow pipe 58 rises spirally along the inside of the refrigerant pipe 57 of the condenser 20, and each discharge port at the upper end is once connected by a connection pipe 58B and then connected to the drain pipe 58C. The end portion of the drain pipe 58C is located above the drain receiver 45 and is inserted from above into a drain cap 74 provided in the main body 1 and is opened downward (FIGS. 9, 10, and FIG. 12). The drain cap 74 has a funnel shape having a predetermined volume, and a lower end of the drain cap 74 is connected to a deformable elastic tube, which is a condenser drain tube 76 formed of a rubber tubular member in this embodiment. ing. The water flow pipe 58 is provided so as to protrude upward from the upper part of the frozen dessert manufacturing apparatus main body 1 and is connected to a cleaning pipe 58D for supplying water at the time of cleaning. The water supply tap 55 is provided at the upper end of the cleaning pipe 58D. It has been.

  On the other hand, as shown in the plan view of FIG. 11, the drain receiver 45 is made of a hard synthetic resin having a horizontally long container shape opened on the upper surface, and a circular drainage port 77 is formed at the center thereof. The drainage port 77 is configured to extend obliquely downward toward the main body 1 and has an engagement portion 77A that is detachably engaged with a connection portion 79 of a drainage member 78 described later on the end peripheral wall. Is formed. Further, as shown in FIG. 12, the upper edge of the drain receiver 45 is inclined downward to the front side, so that even if drainage overflows from the drain receiver 45, it overflows from the front side without overflowing to the main body 1 side. So that it is considered. Although not shown in FIGS. 10 and 12, the spider 73 is detachably mounted on the step 45 </ b> A in the upper portion of the drain receiver 45.

  A drainage member 78 is connected to the lower side of the drain receiver 45, and a drainage port 77 is connected to the upper end of the drainage member 78. The drainage member 78 forms a connecting portion 79 to be inserted into the drain outlet 77 of the drain receiver 45 and an inclined portion 80 configured to extend obliquely downward from the connecting portion 79 to the main body 1 side. And a joining pipe portion 82 projecting from the middle of the inclined portion 80 on the upper side of the drainage pipe 81 toward the main body 1 side, and these are integrally made of a hard synthetic resin. Molded.

  The connection portion 79 of the drainage member 78 is formed in a dish shape that opens upward so as to surround the drainage port 77 of the drain receiver 45 as shown in FIG. 12, and the inner wall of the connection portion 79 An engaging portion 79A that is detachably engaged with an engaging portion 77A on the peripheral wall of the end of the drain port 77 of the drain receiver 45 is formed.

  A mounting plate portion 83 is formed integrally with the drainage member 78 on the lower peripheral wall of the inclined portion 80 of the drainage member 78. The attachment plate portion 83 is formed at a position that is substantially flush with the side surface of the drain receiver 45 on the main body 1 side in a state where the drainage member 78 is attached to the drain receiver 45. A screw hole (not shown) is formed in the mounting plate portion 83. When the drainage member 78 is attached to the main body 1, the screw hole is overlapped with a screw hole (not shown) formed on the front surface of the main body 1. It can be fixed to the main body 1 by the above.

  A drainage hose 84 having a bellows shape is detachably connected to the drainage pipe 81 of the drainage member 78 in the main body 1, and the lower end of the drainage hose 84 is drawn to the outside from the lower part of the main body 1. Further, the other end of the condenser drain pipe 76 having one end connected to the drain cap 74 as described above is connected to the junction pipe portion 82 of the drain member 78. Here, since the condenser drain pipe 76 is composed of a deformable rubber tubular member having elasticity as described above, the condenser drain pipe 76 is formed so as to avoid the drain pipe 81. After descending to the side of 81, it rises and is connected to the drain cap 74. Thus, the condenser drain pipe 76 constitutes a U trap 76A. In this embodiment, the condenser drain pipe 76 is made of a rubber tubular member, but is not limited to this, and is made of a deformable member such as a bellows member. It may be acceptable.

  On the other hand, an attachment hole 85 for attaching the drainage member 78 is formed on the front surface of the main body 1 located below the drain receiver 45. In the present embodiment, the mounting hole 85 is constituted by a single hole, and is formed integrally with the drainage member 78 in a state where the drainage pipe 81 and the junction pipe portion 82 of the drainage member 78 are inserted into the main body 1. It is assumed that the mounting plate portion 83 is closed.

  With such a configuration, the drainage path from the condenser 20 joins in the middle of the drainage path from the drain receiver 45. With the above configuration, when cleaning the inside of the hopper 2 or the cooling cylinder 8, the cleaning water flows into the hopper 2 from the water supply tap 55 and flows out from the extraction path in the freezer door 14 through the cooling cylinder 8. An adapter (not shown) that reaches the drain receiver 45 is directed to the lower side of the freezer door 14, and the drained drainage flows down to the drain receiver 45 through the adapter. Drainage from the freezer door that has flowed into the drain receiver 45 flows into the drainage member 78 through the drainage port 77, flows down in the inclined portion 80 of the drainage member 78, and from the drainage hose 84 through the drainage pipe 81. It is discharged outside.

  On the other hand, the cooling water (drainage) whose temperature has risen by exchanging heat with the refrigerant pipe 57 while rising in the water pipe 58 of each condenser 20 merges in the upper communication pipe 58B, and then passes through the drain pipe 58C. It flows into the drain cap 74. Then, it flows down in the condenser drain pipe 76, enters the inclined portion 80 from the junction pipe portion 82, flows down in the inclined portion 80, and is discharged to the outside from the drain hose 84 connected to the drain pipe 81.

  As described above, the drainage member 78 is provided with the junction pipe portion 82 in the inclined portion 80 that is in the middle of the drainage path from the drain receiver 45, so that the condenser drainage pipe 76 that constitutes the drainage path from the condenser 20 is provided. Since they are joined together, the drainage from the condenser 20 can be discharged using the drainage path from the drain receiver 45. Further, the drainage from the condenser 20 is not discharged to the drain receiver 45, but connected to the downstream side thereof and joined to the middle part (inclined part 80) of the drainage pipe 81 of the drainage member 78 located in the middle of the drainage path. Therefore, it is possible to effectively prevent the temperature of the drain receiver 45 itself from rising due to high temperature drainage. This eliminates the inconvenience that the user touches the heated drain receiver 45 to get burned or feel uncomfortable.

  Further, since the drain pipe 81 (inclined portion 80) reaching the connection portion 80 of the drain member 78 is inclined obliquely downward, the drain flow that flows into the drain pipe 81 via the drain receiver 45 and the drain path of the condenser 20. Thus, the wastewater that has flowed into the drainage pipe 81 through the junction pipe portion 82 can be smoothly led out to the drainage hose 84. Thereby, smooth drainage can be enabled.

  Further, when performing maintenance work such as cleaning of the drain receiver 45 and the drainage member 78, the screw fixing the drainage member 78 to the front surface of the main body 1 is removed after removing the drain receiver 45, and from the front surface of the main body 1. The drainage member 78 is pulled out, and in this state, the drainage hose 84 connected to the drainage pipe 81 of the drainage member 78 and the condenser drainage pipe 76 connected to the junction pipe portion 82 of the drainage member 78 from the front side of the main body 1. Remove. As a result, the drain receiver 45 and the drainage member 78 can be detached from the main body 1 to be in an independent state.

  Accordingly, it is possible to easily perform maintenance work such as cleaning of the drain drainage device in a state where the drain receiver 45 and the drainage member 78 are detached from the main body 1, and hygiene management of the device is facilitated.

  After the maintenance work such as cleaning of the drain receiver 45 and the drainage member 78 is completed, the drainage member 78 is again directed to the front surface of the main body 1, and the drainage hose 84 is connected to the drainage pipe 81 via the attachment hole 85. At the same time, the condenser drain pipe 76 is connected to the merging pipe section 82. Thereafter, the drain pipe 81 and the junction pipe portion 82 of the drain member 78 are inserted into the main body 1 through the mounting hole 85. Then, the attachment plate portion 83 formed integrally with the drainage member 76 and the front surface of the main body 1 are superposed and fixed with screws.

  Thereby, the attachment structure of the said drainage member 78 can be simplified. Moreover, since the drain pipe 81 and the junction pipe part 82 are accommodated in the main body 1 through the attachment hole 85, the disadvantage that these pipes are exposed to the outside of the main body 1 can be avoided, and the frozen dessert manufacturing apparatus SM It becomes possible to improve the beauty of itself.

  In addition, the attachment hole 85 that allows the drainage pipe 81 and the junction pipe 82 of the drainage member 78 to be inserted into the main body 1 is blocked by the attachment plate portion 83 in a state where the drainage member 78 is attached to the main body 1. Therefore, the appearance can be improved and the inconvenience of dust and dirt entering the main body can be suppressed.

  Since the drain receiver 45 and the drainage member 78 constituting the drain drainage device of the present invention are configured as a single member as described above, the drainage mechanism from the conventional drain receiver and condenser is used. Compared to this, the number of parts can be remarkably reduced, and the manufacturing cost can be reduced and the handleability can be improved.

  Further, as described above, the condenser drain pipe 76 connected to the junction pipe portion 82 of the drainage member 78 constitutes the U trap 76A that descends after avoiding the drain pipe 81, and therefore rises. 45, the insects that have entered through the drainage member 78, the gas that corrodes the copper pipe, and the like can be prevented from entering the condenser drain pipe 76.

It is a partial longitudinal cross-sectional perspective view of the frozen dessert manufacturing apparatus of the Example of this invention. It is a refrigerant circuit figure of the cooling device of the frozen dessert manufacturing apparatus of FIG. It is a block diagram of the control apparatus of the frozen dessert manufacturing apparatus of FIG. It is a front view of the control panel of the frozen dessert manufacturing apparatus of FIG. It is a flowchart which shows the program of the microcomputer of the control apparatus of FIG. It is a flowchart which similarly shows the program of the microcomputer of a control apparatus. It is a timing chart explaining the cooling operation of the frozen dessert manufacturing apparatus of FIG. It is a timing chart explaining the sterilization and cold preservation operation | movement of the frozen dessert manufacturing apparatus of FIG. It is a see-through | perspective perspective view for demonstrating the drainage path | route of the frozen dessert manufacturing apparatus of FIG. It is a see-through | perspective side view for demonstrating the drainage path of the frozen dessert manufacturing apparatus of FIG. It is a perspective top view of the frozen dessert manufacturing apparatus of FIG. It is sectional drawing of the drainage member of the frozen dessert manufacturing apparatus of FIG.

SM Frozen confectionery manufacturing equipment 1 Main body 2 Hopper 8 Cooling cylinder 14 Freezer door
15 Extraction lever (Frozen dessert removal department)
16 Plunger (Frozen dessert removal part)
18 Compressor 20 Water-cooled condenser 45 Drain receiver 58 Water piping 65 Piping 70 Temperature setting switch 71 Display changeover switch 72 Machine room 73 Samurai child 74 Drainage cap 76 Condenser drainage pipe 77 Drainage port 78 Drainage member 79 Connection unit 80 Inclination unit 81 Drainage pipe 82 Junction pipe section 83 Mounting plate section 84 Drainage hose 85 Mounting hole

Claims (4)

A cooling cylinder provided in the main body for producing frozen dessert by cooling the mix while stirring, a cooling device for cooling the cooling cylinder, a water-cooled condenser included in the cooling device, and a front surface of the main body The frozen dessert take-out section for removing the frozen dessert produced by the cooling cylinder and the front surface of the main body is detachably attached to the drainage from the frozen dessert take-out section and the drainage from the condenser to be discharged. In the frozen confectionery manufacturing apparatus comprising a drain drainage device,
The drain drainage device comprises a drain receiver located on the front surface of the main body corresponding to the lower portion of the frozen dessert takeout part, and a drainage member attached to the lower side of the drain receiver.
The drainage member includes a connection part connected to the drain outlet of the drain receiver, a drainage pipe extending from the connection part to the main body side and detachably connected to a drainage hose in the main body, One end of a drainage path from the condenser protruding from the middle of the drainage pipe and integrally connected to the merging pipe part are detachably connected, and at least the drainage pipe and the merging pipe part are provided on the front surface of the main body. It is possible to insert and remove from the formed mounting hole in the main body ,
The drainage member is detachably attached to the front surface of the main body in a state where the drainage pipe and the junction pipe portion are inserted into the main body, and a mounting plate portion that closes the mounting hole is integrally formed. Frozen confectionery manufacturing equipment. The connection portion is formed in a dish shape that opens upward to surround the drain outlet of the drain receiver,
The frozen confectionery manufacturing apparatus according to claim 1, wherein an engagement portion that is detachably engaged with an end peripheral wall of the drain outlet of the drain receiver is formed on an inner wall of the connection portion.   The frozen confectionery manufacturing apparatus according to claim 1 or 2, wherein a drainage pipe reaching the connection portion of the drainage member is inclined obliquely downward.   The junction pipe portion is detachably connected to a condenser drain pipe made of a deformable member, and the condenser drain pipe constitutes a U trap that rises after descending in a manner avoiding the drain pipe. The frozen dessert manufacturing apparatus according to claim 1, claim 2, or claim 3.

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