JPH0765230A - Ice dispenser for cup-type vending machines - Google Patents

Abstract

(57) [Abstract] [Purpose] The stocker door opening time is corrected according to changes in ambient conditions to make the ice discharge amount constant. [Structure] An angle detector 5 in a stocker 4 detects a rotation angle d of an agitator and sends it to an ice discharging device 3. A temperature / humidity sensor 6 is installed near the stocker 4,
The ambient temperature e and the humidity f are measured and sent to the ice discharging device 3.
The fuzzy inference unit 7 in the ice discharging device 3 uses the fuzzy inference based on the input agitator rotation angle d, ambient temperature e, humidity f and other conditions to input the ice discharging speed correction amount g.
Is calculated and sent to the discharge time calculation unit 8. Discharge time calculation unit 8
Is a target amount b corrected by a correction amount g to be a door opening time i,
It is sent to the door / motor operation unit 9. Door / motor operation unit 9
Generates a door solenoid operation signal j based on the door opening time i and sends it to the door solenoid 11 installed in the stocker 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice discharging device for a cup type vending machine which sells ice-containing beverages.

[0002]

2. Description of the Related Art There are the following methods for controlling the ice discharge amount in a conventional ice discharge device for a cup type vending machine. (1) Assuming that ice is ejected in proportion to the opening time of the stocker door, the stocker door opening time is adjusted according to the ice ejection target amount. (2) Further, since the agitator is rotating in the stocker, the amount of ice discharged varies depending on the rotation position. Therefore, the opening time of the door is corrected according to the variation pattern of the ice discharge amount due to the rotation of the agitator to reduce the fluctuation of the discharge amount.

(3) Further, when the door of the stocker is opened and closed to eject ice, the amount of ice falling in the air immediately after the door is closed (hereinafter referred to as the ejection amount after closing the door) is taken into consideration. An ice discharge amount measuring device is attached below the discharge port, and the door is closed before the measured ice amount reaches the target value of the discharge amount. That is, by closing the door when the measured value reaches the value obtained by subtracting the discharge amount after closing the door from the target discharge amount, the discharge amount is made to more accurately match the target value.

[0004]

[Problems to be Solved by the Invention] However, (1)
In the control of, the amount of ice discharge is uniformly obtained in proportion to the opening time without considering the fluctuation of the surrounding conditions. Therefore, when the surrounding conditions change, the ice quality changes and the ice amount per unit time is changed. The discharge amount (hereinafter referred to as ice discharge speed) varies, and the discharge amount varies. Further, in the control of (2) as well, since the fluctuation of the surrounding conditions is not taken into consideration, the quality of the ice changes and the fluctuation pattern of the ice discharge amount also changes and the discharge amount varies when the surrounding conditions change. Will end up.

Further, in the case of (3), the discharge amount after the door is closed is always regarded as a constant amount, but in reality, after the discharged ice drops into the cup, it may bounce up and float in the air. is there. This is called secondary ice, and is distinguished from ice that is directly falling from the discharge port. This secondary ice will not be weighed until it falls again and reaches the cup. Therefore, if the time until all the secondary ice is measured is the ice discharge amount measurement delay time, the ice discharge amount measurement delay time also changes due to changes in surrounding conditions, and the calculated ice discharge speed value varies, The ice discharge amount will fluctuate. As a result, there is a problem in that the taste and temperature of the beverage change with each sale, which tends to impair the customer's willingness to purchase.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a cup type automatic vending machine which can always obtain a stable ice discharge amount even if the ambient conditions change. It is to provide an ice discharge device for a machine.

[0007]

In order to achieve the above object, the first invention is a stocker for storing ice, an ice discharging door provided on the side surface of the stocker, and a driving means for opening and closing the door. An agitator that rotates and stirs the ice in the stocker, and an angle sensor that detects the rotation angle of the agitator,
The memory that stores the rotation angle of the agitator in the standard state and the fluctuation pattern of the ice discharge amount per unit time is referenced, and the discharge amount fluctuation pattern in the memory is referenced based on the rotation angle of the agitator detected when the door is opened. The calculation means to calculate the door opening time until the ice discharge amount reaches the target amount, and the door opening and closing drive means to close the door at the time when the door opening time calculated by measuring the elapsed time after opening the door In an ice discharging device of a cup type vending machine having a means for sending a signal, a sensor for detecting the ambient temperature and humidity, a measuring means for measuring the elapsed time after ice making of the stocker, and the ambient temperature, humidity and Based on the calculation means for calculating the correction amount for optimizing the ice discharge amount read from the memory by fuzzy inference using the elapsed time after ice making as an input condition, and the correction amount of the ice discharge amount based on the calculation means. Characterized in that a means for changing the door opening time.

A second invention is a stocker for storing ice, an ice discharge door provided on a side surface of the stocker, a driving means for opening and closing the door, an agitator for rotating and stirring the ice in the stocker, and an agitator. Based on the angle sensor that detects the rotation angle of the, the memory that stores the rotation angle of the agitator in the standard state and the fluctuation pattern of the ice discharge amount per unit time, and the rotation angle of the agitator that is detected when the door is opened. A calculation means for calculating the door opening time until the ice discharging amount reaches the target amount by referring to the discharge amount variation pattern in the memory, and the door opening time elapsed by measuring the elapsed time after the door opening In a ice dispenser for a cup-type vending machine having means for sending a door closing signal to the door opening / closing driving means at a predetermined time, a sensor for detecting ambient temperature and humidity, and a stocker To optimize the door opening time calculated from the discharge amount fluctuation pattern in the memory by measuring means for measuring the elapsed time after ice making and fuzzy inference using the ambient temperature, humidity and elapsed time after ice making as input conditions. And a means for changing the door opening time based on the correction amount of the door opening time.

A third invention is a stocker for storing ice, an ice discharge door provided on a side surface of the stocker, a driving means for opening and closing the door, an agitator for rotating and stirring the ice in the stocker, and a cup. In an ice dispenser for a cup-type vending machine that has a measuring means for measuring the amount of ice discharged inside, the ice that has dropped due to the door being opened has reached the cup and measurement has started. Measuring means for measuring the required time, calculating means for calculating the amount of ice discharge per unit time based on the temporal change of the measured amount of ice discharge, and the time required for the discharged ice to reach the cup and the unit time A unit for calculating a door closing timing from the hit ice discharge amount and the target value of the ice discharging amount; and a unit for sending a door closing signal to the door opening / closing driving unit at the time of the closing timing. To do.

According to a fourth aspect of the invention, in the ice dispenser for a cup-type vending machine according to the third aspect of the invention, a sensor for detecting ambient temperature and humidity, and a measuring means for measuring the elapsed time after ice making of the stocker, The fuzzy inference using the ambient temperature, humidity and elapsed time after ice making as input conditions calculates the timing correction amount to optimize the closing timing according to the ice condition, and the closing timing time based on the correction amount. And means for changing.

[0011]

In the first aspect of the invention, the ambient temperature and humidity are detected by the sensor and the elapsed time after ice making of the stocker is measured. By using fuzzy reasoning with these ambient temperature, humidity and elapsed time after ice making as input conditions, the correction amount for optimizing the ice discharge amount read from the memory is calculated, and the door opening time is calculated based on the obtained correction amount. Is changed. As a result, a stable ice discharge amount can be obtained even if the ice condition changes due to the surrounding conditions.

In the second invention, the ambient temperature and humidity are detected by the sensor, and the elapsed time after ice making of the stocker is measured. By using fuzzy reasoning with these ambient temperature, humidity and elapsed time after ice making as input conditions, the door opening time correction amount for optimizing the door opening time calculated from the discharge amount fluctuation pattern in the memory is calculated and obtained. The door opening time is changed based on the correction amount thus obtained.
As a result, a stable ice discharge amount can be obtained even if the ice condition changes due to the surrounding conditions.

According to the third aspect of the invention, when the time required until the door is opened and the discharged ice drops to reach the cup and the measurement is started is measured, the measured ice discharge amount changes with time. The ice discharge amount per unit time is calculated based on
Next, the door closing timing is calculated from the time required for the discharged ice to reach the cup, the ice discharging amount per unit time, and the target value of the ice discharging amount, and the door opening / closing drive means is calculated at the obtained closing timing. A door closing signal is sent to the door and the door is closed. As a result, a stable ice discharge amount can be obtained as the time required for the ice to fall changes.

In the fourth aspect of the invention, the ambient temperature and humidity are detected by the sensor, and the elapsed time after ice making of the stocker is measured. By using fuzzy reasoning with these ambient temperature, humidity and elapsed time after ice making as input conditions, the timing correction amount for optimizing the closing timing is calculated according to the ice condition, and the closing timing is calculated based on the obtained correction amount. The time is changed. Thereby,
A stable ice discharge amount can be obtained even when the time required for the drop varies depending on the condition of the discharged ice.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram showing an embodiment of an ice discharging device of a cup type vending machine according to the first invention and the second invention. In the figure, reference numeral 1 denotes a centralized control unit that sends a sales command a to the ejection timing operation unit 2 and the ice ejecting device 3 and sends a target amount b to the ice ejecting device 3. The discharge timing operation unit 2 converts the sales command a into a discharge command c and sends it to the ice discharging device 3.

An angle detector 5 is installed in the stocker 4 to detect a rotation angle d of an agitator (not shown) and send it to the ice discharging device 3. A temperature / humidity sensor 6 is installed in the vicinity of the stocker 4, and measures the ambient temperature e and the humidity f and sends them to the ice discharging device 3. The fuzzy inference unit 7 in the ice discharging device 3 receives the input agitator rotation angle d,
The ice discharge speed correction amount g or the door opening time correction amount h is calculated by fuzzy inference based on the ambient temperature e, the humidity f, and other conditions, and is sent to the discharge time calculation unit 8. The discharge time calculation unit 8 corrects the target amount b with the correction amount g or h to obtain the discharge time (door opening time) i, which is used as the door / motor operation unit 9
Send to.

The door / motor operating unit 9 generates a door solenoid ON / OFF signal j based on the discharge time i and sends it to the door solenoid 11 installed in the stocker 4, and also turns on / off the motor based on the discharge time i. The signal k is generated and sent to the motor 12 that drives the agitator in the stocker 4. As a result, when the sales command a is output,
Based on the ambient temperature e and the ambient humidity f, which are the ambient conditions at that time, the drive signal corrected so that the discharged ice matches the target amount b is the door solenoid 11 and the motor 12.
The ice discharge is always kept constant.

2 to 4 are explanatory views showing the structure of the agitator installed in the stocker 4 of FIG. 2 is a perspective view, FIG. 3 is a side view showing the right half, and FIG. 4 is a plan view. In each drawing, two sets of bars 16 to 19 are attached around the holder 15, which is the central axis, at intervals of 45 degrees. The mounting positions of the bars 16 to 19 are sequentially shifted in the axial direction as shown in FIG. 3, but the levels of the tips are the same.

FIG. 5 is a graph showing an ice discharge speed variation pattern v (t) showing changes in time and ice discharge speed when the agitator having the above-described structure rotates. The horizontal axis is the elapsed time when the agitator rotates at a constant speed, and corresponds to the rotation angle of the agitator. The vertical axis represents the amount of ice discharged per unit time with the door of the stocker 4 open as the ice discharge speed. In the figure, as indicated by a thick solid line, the ice discharge speed is represented as a pattern that periodically increases and decreases. This is because the ice discharge amount increases or decreases depending on the rotation angle of the agitator. In addition to the rotation angle of the agitator, the ice discharge speed also changes due to changes in surrounding conditions. The fluctuation range is shown as a thin solid line in the figure.

The main ambient conditions referred to here are:
There are ambient temperature, ambient humidity, and elapsed time after ice making. The ice discharge speed variation pattern v (t) is unique to the combination of the stocker and the agitator and is stored in the memory in advance. In this way, the ice discharge speed changes with the lapse of time, so if the door of the stocker is opened at time t ₁ and then the door is closed at time t ₂ , the amount of ice discharged during that time is v (t). It can be obtained by integrating from t ₁ to t ₂ .

FIG. 6 is a block diagram showing calculation processing in the fuzzy inference unit 7 and the discharge time calculation unit 8 installed in the ice discharge device 3 of FIG. In the figure, the fuzzy inference unit 7 obtains the ice discharge speed correction amount g or the door opening time correction amount h by fuzzy inference using the ambient temperature e, the ambient humidity f, and the elapsed time after ice making PTIM as input conditions. The post-ice-making elapsed time PTIM is measured by a timer circuit (not shown) from the time when the stocker finished ice making last time.

Further, from the agitator rotation angle d, the ice discharge speed fluctuation pattern v (t) stored in advance in the memory.
The relevant section of is extracted. Next, the stocker door opening time i is obtained in the discharge time calculating unit 8 from these values and the target amount b separately given. Here, there are two specific methods for obtaining the door opening time i, and one of them is to use the ice discharge speed correction amount g obtained by fuzzy inference. That is, as shown in Formula 1, the ice discharge speed correction amount g is added to the ice discharge speed fluctuation pattern v (t), and integrated with respect to the time T during which the door is open to obtain the target amount.

[0023]

[Equation 1]

Since the target amount, v (t), and g are known, the time T can be obtained by back calculation. The obtained time T becomes the door opening time i. Another method uses the door opening time correction amount h obtained by fuzzy inference. That is, as shown in Formula 2, the ice discharge speed fluctuation pattern v (t) is integrated with respect to the time T during which the door is open to obtain the target amount. Here, since the target amount, v (t), is known, the time T is calculated by back calculation. Next, as shown in Equation 3, the door opening time i is obtained by adding the door opening time correction amount h to the obtained time T.

[0025]

[Equation 2]

[0026]

[Equation 3]

The first invention uses the former ice discharge speed correction amount g, and the second invention uses the latter door opening time correction amount h.

The membership function used in the above fuzzy inference has the contents shown in FIGS. Figure 7 shows the input conditions: ambient temperature (° C) and ambient humidity (%).
Is the membership function of the antecedent part of. FIG. 8 is a membership function of the antecedent part for the elapsed time after ice making PTIM (Hr) which is also an input condition. FIG. 9 is a consequent part membership function for the ice discharge speed correction amount g (g / s) or the door opening time correction amount h (msec) which is the output condition. The fuzzy control rules used in this fuzzy inference have the contents shown in Tables 1 and 2. Table 1 shows the output depending on the ambient temperature when the elapsed time after ice making PTIM is small (SA). Table 2 shows the output depending on the ambient temperature and the ambient humidity when the elapsed time after ice making PTIM is large (LA).

[0029]

[Table 1]

[0030]

[Table 2]

In this way, in the first aspect of the invention, the change in the ice discharge speed due to the ambient conditions is corrected by fuzzy reasoning to determine the door opening time, so that it is stable even in an environment where the ambient conditions fluctuate. Ice discharge can be performed.
Further, in the second aspect of the invention, the correction amount of the door opening time that must be adjusted according to the ambient conditions is obtained by the direct fuzzy inference and corrected, which causes a mechanical change such as a change of the ice discharging device. Therefore, even when the ice discharge characteristic changes, more detailed control of the discharge time becomes possible.

Next, embodiments of the third and fourth inventions will be described. FIG. 10 is an overall configuration diagram showing an embodiment of an ice discharging device of a cup type vending machine according to the third invention and the fourth invention. In the figure, reference numeral 21 is a stocker in which an agitator 22 for stirring is stored.
A discharge port 23 is formed at a lower position on the side surface of the stocker 21, and when a door solenoid 24 installed above the stocker 21 raises the door to open the discharge port 23, ice is discharged from the discharge port 23.

A temperature / humidity sensor 25 is installed near the upper side surface of the stocker 21, and a central controller 26 measures the ambient temperature m and the ambient humidity n of the stocker 21.
Sent to. The ice discharged from the discharge port 23 of the stocker 21 is dropped and contained in the lower cup 27.
The cup 27 is mounted on a strain gauge 28 which is a means for measuring the weight of the discharged ice. Therefore, when the ice drops into the cup 27 and the weight increases, the value is measured and sent to the central controller 26 as the ice discharge amount measurement value p.

The central control unit 26 is provided with a fuzzy inference section, and a door for keeping the ice discharge amount always constant from the input ambient conditions such as the ambient temperature m and the ambient humidity n and the ice discharge amount measured value p. The opening time is calculated, and the door opening / closing command q is sent to the door solenoid 24 based on the door opening time. The door solenoid 24 opens the door for the time designated by the door opening / closing command q. As a result, a fixed amount of ice is ejected from the ejection port 23 each time. In the figure, 29 is an ice chipper motor.

FIG. 11 is a block diagram showing the arithmetic processing in the central control unit 26 of FIG. 10, and FIG. 13 is a graph showing the relationship between the elapsed time and the ice discharge amount. In FIG. 11, when the ice discharge amount measurement value p is input to the ice discharge speed calculation unit 31, the door opening time t _{o when the} door shown in FIG. 13 is opened.
The time required to fall until the ice discharge amount detection start time t _s at which the discharge ice dropped from the cup reaches the cup and the measurement is started is measured, and the measured ice discharge amount reaches a constant value q _m. The speed measurement time t _m is measured. The ice discharge amount per unit time, that is, the ice discharge speed v (g / s) is calculated from the obtained time change of the ice discharge amount.

Next, in the after-door-closed discharge amount calculation unit 32, the ice discharge end time t _{e at} which the ice discharge target amount q _t is reached and the ice discharge is reached by using the required time and the ice discharge speed v obtained in the previous stage. The door closing time t _c at which the target amount q _t is actually discharged from the discharge port 23 and the ice discharge amount threshold q _th measured in the cup 27 at that time are calculated. Next, the door opening command generator 33 monitors the increasing ice discharge amount measurement value p and outputs a door close signal when the ice discharge amount threshold value q _th is reached.

In other words, in other words, the door is opened until the ice discharge amount measurement value p reaches the value obtained by subtracting the discharge amount after closing the door from the ice discharge target amount q _t , and then closing the door. That is also the case. As a result, even when the ice discharge speed changes due to changes in the ambient conditions and the discharge amount changes after the door is closed, the door is closed at the optimum timing and the ice discharge amount falling on the cup 27 is always constant. These processes are the third invention.

Next, the fourth invention will be described with reference to FIGS. FIG. 12 shows that the fuzzy inference unit 34 and the ice discharge amount threshold value correction amount calculation unit 35 are added to the calculation process in FIG. 11 to correct the ice discharge amount threshold value, and FIG. It is a graph which shows the relationship between time and the amount of ice discharges. As shown in FIG. 14, the ice that has dropped into the cup 27 again rises and floats in the air as secondary ice, and the measured value is delayed with respect to the true ice discharge amount. Therefore, the ice discharge amount measurement delay time t _d is set.

Since the ice discharge amount measurement delay time t _d fluctuates depending on the ambient conditions, as shown in FIG. 12, in the fuzzy reasoning section 34, the ambient temperature m, the ambient humidity n, and the post-ice-making elapsed time PTIM are input conditions. The ice discharge amount measurement delay time t _d is estimated by fuzzy inference. The membership function used in this fuzzy inference unit 34 is shown in FIG.
9 is the same as that in FIG. 9, and the fuzzy control rules used are the same as those shown in Tables 1 and 2.

The delay time t _d obtained by the fuzzy inference unit 34 is sent to the ice discharge amount threshold correction amount calculation unit 35. The calculation unit 35 corrects the ice discharge amount threshold value q _th obtained by the ice discharge speed calculation unit 31 with the delay time and sends it to the door opening command generation unit 33. The generation unit 33 monitors the ice discharge amount measurement value p, and the ice discharge amount measurement value p indicates that the ice discharge target amount q _t.
After opening the door, open the door until it reaches the value obtained by subtracting the discharge amount and the ice discharge amount threshold correction amount, and then close the door. As a result, due to changes in ambient conditions, cup 2
Even when the amount of secondary ice generated from the discharged ice that has dropped to 7 fluctuates, the door is closed at the optimum timing and the cup 27
The amount of ice discharged to the ground is always constant.

[0041]

As described above, according to the first invention,
By using fuzzy inference with ambient temperature, humidity and elapsed time after ice making as input conditions, a correction amount for optimizing the ice discharge amount read from the memory is calculated, and the door opening time is changed based on the correction amount. . As a result, the ice discharge amount becomes stable even if the surrounding conditions change.

According to the second aspect of the present invention, the fuzzy inference using the ambient temperature, the humidity and the elapsed time after ice making as input conditions is used to optimize the door opening time calculated from the discharge amount variation pattern in the memory. Calculate the door opening time correction amount,
The door opening time is changed based on the correction amount. as a result,
The amount of ice discharge is stable even if the surrounding conditions change.

According to the third aspect of the invention, the time required for the drop of ice to be discharged from the opened door to reach the cup and to start the measurement is measured to determine the change in the ice discharge amount with time. Based on this, the ice discharge amount per unit time is calculated. Next, the optimal closing timing of the door is calculated from the time required for the discharged ice to reach the cup, the ice discharging amount per unit time, and the target value of the ice discharging amount, and the door is closed based on the timing. As a result, the amount of ice discharge is stable even when the time required for the ice to fall increases or decreases.

According to the fourth aspect of the present invention, the timing correction amount for optimizing the closing timing of the door according to the state of ice is obtained by the fuzzy inference using the ambient temperature, the humidity and the elapsed time after ice making as input conditions. Is calculated, and the closing timing time is changed based on the correction amount. As a result, the amount of ice discharged is stable even when the time required for the drop changes depending on the state of the discharged ice.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment according to a first invention and a second invention.

FIG. 2 is a perspective view showing an essential part of FIG.

FIG. 3 is a partial side view showing a main part of FIG. 1 taken out and shown.

FIG. 4 is a plan view showing a main part of FIG. 1 taken out and shown.

5 is a graph showing changes in time and ice discharge speed in the embodiment of FIG.

FIG. 6 is a block diagram showing arithmetic processing in the embodiment of FIG.

7 is an antecedent part membership function used in the fuzzy inference of FIG.

8 is an antecedent part membership function used in the fuzzy inference of FIG.

9 is a consequent part membership function used in the fuzzy inference of FIG.

FIG. 10 is an overall configuration diagram showing an embodiment according to the third invention and the fourth invention.

FIG. 11 is a block diagram showing arithmetic processing in an embodiment of the third invention.

FIG. 12 is a block diagram showing arithmetic processing in an embodiment of the fourth invention.

13 is a graph showing the relationship between the elapsed time and the ice discharge amount in the calculation of FIG.

14 is a graph showing the relationship between the elapsed time and the ice discharge amount in the calculation of FIG.

[Explanation of symbols]

 1 Centralized Control Section 2 Discharge Timing Operation Section 3 Ice Discharge Device 4 Stocker 5 Angle Detector 6 Temperature / Humidity Sensor 7 Fuzzy Reasoning Section 8 Discharge Time Calculation Section 9 Door / Motor Operation Section 11 Door Solenoid 12 Motor 15 Holder 16-19 Bar 21 Stocker 22 Agitator 23 Discharge Port 24 Door Solenoid 25 Temperature / Humidity Sensor 26 Central Controller 27 Cup 28 Strain Gauge 29 Ice Chipper Motor 31 Ice Discharge Velocity Calculator 32 Door Closed Discharge Amount Calculator 33 Door Open Command Generator 34 Fuzzy Inference unit 35 Ice discharge amount threshold correction amount calculation unit

Claims (4)

[Claims] 1. A stocker for storing ice, an ice discharge door provided on a side surface of the stocker, a drive means for opening and closing the door, an agitator for rotating and stirring the ice in the stocker, and a rotation angle of the agitator. An angle sensor to detect, a memory that stores the rotation angle of the agitator in the standard state and the fluctuation pattern of the ice discharge amount per unit time, and the discharge in the memory based on the rotation angle of the agitator detected when the door is opened. A calculation means that calculates the door opening time until the ice discharge amount reaches the target amount by referring to the amount fluctuation pattern, and a door at the time when the door opening time calculated by measuring the elapsed time after opening the door In an ice discharging device of a cup type vending machine having a means for sending a door closing signal to the opening / closing driving means, a sensor for detecting ambient temperature and humidity, and a stocker A measuring means for measuring the elapsed time after and a calculating means for calculating a correction amount for optimizing the ice discharge amount read from the memory by fuzzy inference using the ambient temperature, humidity and the elapsed time after ice making as input conditions. An ice discharging device for a cup-type vending machine, comprising: a means for changing a door opening time based on a correction amount of the ice discharging amount; 2. A stocker for storing ice, an ice discharge door provided on a side surface of the stocker, a driving means for opening and closing the door, an agitator for rotating and stirring the ice in the stocker, and a rotation angle of the agitator. An angle sensor to detect, a memory that stores the rotation angle of the agitator in the standard state and the fluctuation pattern of the ice discharge amount per unit time, and the discharge in the memory based on the rotation angle of the agitator detected when the door is opened. A calculation means that calculates the door opening time until the ice discharge amount reaches the target amount by referring to the amount fluctuation pattern, and a door at the time when the door opening time calculated by measuring the elapsed time after opening the door In an ice discharging device of a cup type vending machine having a means for sending a door closing signal to the opening / closing driving means, a sensor for detecting ambient temperature and humidity, and a stocker By optimizing the door opening time calculated from the discharge amount fluctuation pattern in the memory by measuring means for measuring the elapsed time after and the fuzzy inference using the ambient temperature, humidity and the elapsed time after ice making as input conditions. An ice discharging device for a cup-type vending machine, comprising: a calculation unit that calculates a correction amount; and a unit that changes the door opening time based on the correction amount of the door opening time. 3. A stocker for storing ice, an ice discharge door provided on a side surface of the stocker, a drive means for opening and closing the door, an agitator for rotating and stirring the ice in the stocker, and a discharge for discharging into the cup. In the ice dispenser of a cup-type vending machine, which has a measuring means for measuring the amount of ice, the time required for the fall of the discharged ice that reaches the cup when the door is opened and the measurement is started A measuring means for measuring, a calculating means for calculating the ice discharge amount per unit time based on the time change of the measured ice discharge amount, a time required for the discharged ice to reach the cup, and an ice amount per unit time. And a means for calculating the closing timing of the door from the discharge amount and the target value of the ice discharging amount, and means for transmitting a door closing signal to the door opening / closing driving means at the closing timing. Ice discharge device of formula vending machine. 4. The ice dispenser for a cup-type vending machine according to claim 3, wherein a sensor for detecting ambient temperature and humidity, a measuring means for measuring elapsed time after ice making of the stocker, an ambient temperature, A calculation means for calculating a timing correction amount for optimizing the closing timing according to the ice condition by means of fuzzy inference using humidity and the elapsed time after ice making as input conditions, and means for changing the closing timing time based on the correction amount. An ice-discharging device for a cup-type vending machine, which is provided with.