JP2003118796A - Method and system for discharging liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid-discharging method and a liquid-discharging system by which a designated discharging condition can be maintained without relying on the physical properties of the liquid or the characteristics of apparatus, and at the same time, the liquid of a fixed volume amount can be continuously discharged. SOLUTION: Regarding flow meters 21 and 26, and a fixed volume type flow rate regulator 1, a rotator driving motor 1M is controlled in order based on a flow rate signal in a sampling cycle in such a manner that a preset dilution ratio for a vending beverage may be maintained. In this case, the flow meters 21 and 26 are provided on a diluting water-feeding line 20 and a carbonated water-feeding line 25 of a beverage dispenser, and output pulses of frequencies in response to the flow rates. The fixed volume type flow rate regulator 1 is provided on a syrup-feeding line 13, and can continuously feed out a liquid of a fixed volume amount. Thus, even if a flow rate variation is generated due to a water pressure variation of the diluting water WA or an unfavorable feeding out of the syrup S, or other unexpected causes, during the discharge of the vending beverage, the flow rate can be quickly corrected based on the dilution ratio. At the same time, the liquid of the fixed volume amount is continuously and stably discharged at a favorable precision.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid delivery method and a liquid delivery apparatus, and more particularly, it can deliver a fixed volume of liquid continuously in a precise manner, and when it deviates from a reference value, it quickly reaches the reference value. The present invention relates to a liquid delivery method and a liquid delivery device that can be matched with the above.

[0002]

2. Description of the Related Art As a conventional liquid delivery device, there is one that delivers a liquid, which flows from a supply source into a casing through a pipe line on an inflow side, to a pipe line on an outflow side based on rotation of a rotor. In this liquid delivery device, the rotor is driven to rotate in accordance with a desired flow rate, so that a fixed volume of liquid based on the amount of liquid contained between the casing and the rotor and the rotation speed of the rotor is discharged. Can be sent to.

When a motor is used as a drive source for a rotor, for example, the amount of electricity to be supplied to the motor is set based on the rotation characteristic data of the motor obtained by carrying out a sending test in advance for a liquid to be sent at a desired flow rate. By doing so, the difference between the flow rate at the time of setting and the flow rate at the time of actual operation can be reduced. Further, in actual operation, by setting the energization amount to the motor based on the rotation characteristic data of the motor in the liquid delivery operation immediately before stored in the memory, it is possible to prevent the flow rate variation due to the physical property variation (for example, viscosity variation) of the liquid.

[0004]

However, according to the conventional liquid delivery control, since the control amount at the time of liquid delivery is set based on the previous liquid delivery operation, the liquid amount is changed by an unexpected cause during the liquid delivery. There is a problem that the sending operation cannot be controlled when a sending failure occurs. In particular, when provided in a beverage supply device that mixes liquids such as water and liquid raw materials supplied from a plurality of pipelines to produce a beverage, the quality of the beverage is maintained when the flow rate fluctuation occurs due to the above-mentioned unexpected cause. Therefore, there is a disadvantage that the specified delivery conditions are not maintained without maintaining the dilution ratio for the purpose, and a beverage with uneven lightness and uneven mixing state of water and liquid raw materials is formed. Further, it is difficult to predict the above-mentioned cause, and there is also a problem that beverages having different qualities are formed in each sales operation.

Therefore, the object of the present invention is to maintain the specified delivery conditions without depending on the physical properties of the liquid or the characteristics of the equipment, and to deliver a fixed volume of liquid continuously. A liquid delivery method and a liquid delivery device are provided.

[0006]

In order to achieve the above-mentioned object, the present invention provides a liquid delivery line for delivering a liquid with a dispenser containing a rotor for continuously delivering a fixed volume of the liquid, The liquid is delivered to the liquid delivery line through the delivery device, and a change in the flow rate of the liquid in the delivery unit in a unit time is monitored. When the change in the flow rate occurs, the liquid flow rate in the unit time is changed. A liquid delivery method for performing delivery control of the liquid such that the flow rate matches a reference flow rate.

In order to achieve the above-mentioned object, the present invention provides a liquid delivery line for delivering a liquid with a flow meter for measuring the flow rate of the liquid, and the liquid is delivered to the liquid delivery line via the flow meter. When the flow rate of the liquid is changed, the change in the flow rate of the liquid is monitored, and when the change in the flow rate occurs, the delivery pressure of the liquid delivery line is adjusted so that the flow rate of the liquid in the unit time matches a reference flow rate. There is provided a liquid delivery method for controlling the.

In order to achieve the above object, the present invention provides a liquid delivery line capable of delivering various liquids having different physical properties, a main body having an inflow part into which the liquid flows and an outflow part from which the liquid flows out. A rotor that rotates in the main body to move the liquid flowing in from the inflow portion along the inner wall of the main body by a fixed volume amount and continuously deliver the liquid from the outflow portion to the liquid delivery line. ,
When the liquid is delivered, it has a control unit that sequentially controls the rotation of the rotor in a unit time so as to always satisfy the delivery conditions, and the liquid is continuously fed by a fixed volume amount based on the rotation of the rotor. A liquid delivery device having a delivery device for delivering to a delivery line.

In order to achieve the above object, the present invention provides a liquid delivery line capable of delivering various liquids having different physical properties, a flow meter for outputting a flow rate signal based on the flow rate of the liquid, and a flow rate signal for the flow rate signal. A flow regulator that varies the delivery pressure of the liquid that is delivered through the liquid delivery line based on the flow rate and a flow rate signal that is output from the flow meter in a unit time is monitored to cause a deviation from a reference flow rate. There is provided a liquid delivery device having a control unit that drives and controls the flow regulator so that the delivery pressure corresponds to the reference flow rate.

In order to achieve the above object, the present invention provides a liquid delivery line capable of delivering various liquids having different physical properties, another liquid delivery line for delivering another liquid different from the liquid, and Flow meter that outputs a flow rate signal based on the flow rate of the other liquid that is delivered through the liquid delivery line, and a constant volume of the liquid that is continuously delivered based on the rotational drive of the rotor based on the flow rate signal. And a liquid delivery device having a delivery unit for delivering the liquid to the liquid delivery line and a control unit for monitoring the change in the flow rate signal per unit time and controlling the rotational drive of the rotor.

According to the liquid delivery method and the liquid delivery apparatus described above, the flow rate of the liquid is monitored in a predetermined unit time,
When the flow rate of liquid changes, it is possible to continuously and stably deliver a fixed volume of liquid by sequentially performing delivery control so that the flow rate per unit time matches the reference flow rate. To Further, even if a sudden change in the flow rate occurs, it is possible to prevent the error in the flow rate from expanding with the passage of time.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A liquid delivery method and a liquid delivery apparatus of the present invention will be described in detail below with reference to the drawings.

FIG. 1 schematically shows a main part of a liquid delivery device according to a first embodiment of the present invention. This liquid delivery device includes flowmeters 21 and 26 for detecting a flow rate on the basis of rotation of impellers 21A and 26A in a dilution water supply line 20 and a carbonated water supply line 25 of a beverage dispenser that manufactures cup-type beverages as sold beverages. The syrup supply line 13 is provided with a constant volume type syrup flow rate regulator 1 (deliverer) capable of continuously delivering a fixed volume of liquid, and the delivery operation of the flow rate regulator 1 based on the dilution ratio of the beverage sold. And a set of rotors 11 that are housed inside the main body 10 and that mesh with each other and rotate to continuously deliver a fixed volume of syrup to the syrup supply line 13.
A rotor drive motor 1M, which is a DC motor that is connected to one shaft 11A of the rotor 11 and rotationally drives a set of rotors 11, and a pulse having a frequency corresponding to the rotation speed of the rotor drive motor 1M. A syrup flow controller 1 including a pulse encoder 1S for generating, a diluting water flow meter 21 for generating a pulse having a frequency corresponding to the flow rate of the diluting water W _A , and a carbonated water Wc formed similarly to the diluting water flow meter 21. A carbonated water flow meter 26 that generates a pulse having a frequency corresponding to the flow rate of the water, and a memory 3 that stores control data such as a dilution ratio for each beverage sold
And a flow rate for monitoring a deviation from the dilution ratio based on a pulse corresponding to the flow rate of each liquid input from the pulse encoder 1S, the dilution water flow meter 21, and the carbonated water flow meter 26 in a predetermined pulse sampling period. Monitoring unit 4
And a display 5 provided with a display (not shown) such as a liquid crystal display for displaying a flow rate monitoring state, and a rotor drive motor 1 based on an energization correction command input from the supply controller 2.
It has an energization unit 44 that controls the energization of M.

The syrup flow controller 1 includes a shaft 11A and a shaft 11B of a rotor 11 formed in a circular gear shape, and a main body 1 thereof.
It is rotatably supported at 0, and moves the liquid contained between the teeth of the rotor 11 and the inner wall of the main body 10 based on the rotation of the rotor 11.

The rotor drive motor 1M is a DC motor, and the energization is controlled based on the current supplied from the energizing section 44.

The pulse encoder 1S has a shaft member connected to the shaft 11A, a disk member fixed to the shaft member and having a slit formed therein, and a light-emitting element arranged to face each other via the disk member, as a configuration not shown. It has a light receiving element,
When the light passing through the slit is received by the light receiving element, a pulse having a frequency corresponding to the rotation speed of the rotor 11 is output.

The memory 3 has, in addition to the above-mentioned dilution ratio, a pulse sampling period, the flow rates of syrup, dilution water, and carbonated water determined for each beverage sold, the number of pulses of a pulse encoder and a flow meter according to the total amount, And the sending time are stored.

The flow rate monitor 4 counts the pulses input from the pulse encoder 1S, the diluting water flow meter 21, and the carbonated water flow meter 26 in a predetermined pulse sampling period, and inputs from the counter 41. Pulse count value to be used as reference value (reference pulse number)
And a calculation unit 43 that calculates the flow rate fluctuation amount in the sampling period based on the difference between the pulse values output from the comparison unit 42.

The supply control unit 2 controls the sampling operation of the flow rate monitoring unit 4 and, based on the pulse count values corresponding to the flow rates of the syrup, the dilution water and the carbonated water input from the counter 41, the dilution ratio of the beverage sold. Is calculated in real time.

FIG. 2 schematically shows a pipe of a beverage dispenser, and a carbon dioxide cylinder B containing high-pressure carbon dioxide and a syrup tank 6 containing a syrup S as a liquid raw material.
A carbon dioxide supply line 7A for supplying carbon dioxide to the syrup tank 6, a carbon dioxide control valve 8A provided in the carbon dioxide supply line 7A, a syrup cooling coil 15 for cooling the syrup S with cooling water W, and a syrup cooling. Cooling water tank 15A filled with cooling water W in which the coil 15 is immersed
And an evaporator 15B that cools the cooling water W based on vaporization of a refrigerant supplied from a cooling unit (not shown),
Refrigerant conduit 15C for circulating the refrigerant through the evaporator 15B
And a syrup supply line 13 for sending the syrup S,
A syrup flow regulator 1 that continuously outputs syrup S in a fixed volume and outputs a flow rate signal according to the flow rate with a pulse encoder 1S, a syrup solenoid valve 14 that opens and closes a syrup supply line 13, a syrup S, and a dilution. Water W
_A multi-valve 29 that mixes liquids such as _A and carbonated water Wc and discharges into a cup 50 as a drink for sale, an intake pipe 16 for the dilution water W _A , a water solenoid valve 17 that opens and closes the intake pipe 16, and a dilution water W _A water pump 18 for pumping _A and a dilution water cooling coil 19 for cooling the dilution water W _A with cooling water (not shown)
_A dilution water supply line 20 for sending the dilution water W _A , a dilution water flow meter 21 for outputting a flow rate signal according to the flow rate of the dilution water W _A , and a dilution water solenoid valve 22A for opening and closing the dilution water supply line 20. A water branch line 23 branched from the dilution water supply line 20, an electromagnetic valve 22B for opening and closing the water branch line 23, a dilution water W _A and a carbon dioxide gas supply line supplied via the water branch line 23. The carbonator 24 that mixes the carbon dioxide gas supplied via 7B to form the carbonated water Wc, the carbon dioxide control valve 8B provided in the carbon dioxide supply line 7B, and the carbonated water Wc formed by the carbonator 24 is delivered. Carbonated water supply line 25 and carbonated water Wc
Carbonated water flow meter 26 that outputs a flow rate signal according to the flow rate of
A carbonated water cooling coil 27 for cooling the carbonated water Wc with cooling water (not shown), and a carbonated water electromagnetic valve 28 for opening and closing the carbonated water supply line 25.

In addition, as a configuration not shown, a cooling water tank for cooling the dilution water cooling coil 19 and the carbonated water cooling coil 27 with the cooling water like the syrup cooling coil 15,
It has a cup supply device for supplying the cup 50 and an ice maker for supplying ice to the cup 50.

The evaporator 15B forms ice 15D on the surface by vaporizing the liquid refrigerant supplied via the refrigerant pipe 15C, and cools the cooling water W in the cooling water tank 15A based on this ice 15D.

The multi-valve 29 sends to the cup 50 a drink for sale in which liquids such as the above-mentioned syrup S, dilution water W _A , carbonated water Wc, etc., which are sent out through the respective supply lines, are mixed.

3A and 3B show the syrup flow rate regulator 1. FIG. 3A is a plan view, FIG. 3B is a side view, and FIG. This is a state in which the cross section of the section A-A in b) is viewed in the direction of the arrow. The syrup flow controller 1 has an inflow part 10a for inflowing the syrup S pressurized with carbon dioxide into the main body 10 and an outflow part 10b for outflowing the syrup S, and is fixed to the upper part of the main body 10 by a screw or the like to rotate. The rotor drive motor 1M includes a speed reducer 10A that reduces the rotational torque generated by the child drive motor 1M to a speed reduction ratio that is determined based on the viscosity of the syrup, and a lid portion 10B that is fixed to a lower portion of the main body 10. The rotation torque generated by the motor 1M is transmitted through the speed reducer 10A to rotate inside the main body 10 in the arrow direction. The rotor drive motor 1M has a pulse encoder (not shown) that outputs a pulse according to the rotation speed of the rotation shaft.

In the syrup flow controller 1, the syrup S pressurized with carbon dioxide gas flows into the main body 10 from the inflow portion 10a. When the rotor driving motor 1M is driven to rotate the rotor 11 in the direction of the arrow shown in the figure, the syrup S that has flowed into the main body 10 moves to the interdental space C between the teeth of the rotor 11 and the inner wall of the main body 10. It is housed, moved, and continuously delivered from the outflow portion 10b. As a result, the rotor drive motor 1M rotates at a rotation speed based on the amount of electricity and the viscosity of the pressurized syrup S, and the pulse encoder 1S supplies a pulse according to the rotation speed of the rotor drive motor 1M. (Not shown).

Further, in the syrup flow controller 1, when the rotor drive motor 1M is not energized, no driving force is generated in the rotor drive motor 1M, and the syrup S is pressurized in the rotor 11 by carbonic acid. Gas pressure is applied. As a result, the rotor drive motor 1M rotates at a rotation speed based on its own rotation resistance and the viscosity of the pressurized syrup S, and the pulse encoder 1S supplies a pulse according to the rotation speed of the rotor drive motor 1M. Output to the control unit 2. For example, when the temperature decreases and the viscosity of the syrup S increases, the rotation speed of the rotor drive motor 1M decreases and the number of pulses per unit time output from the pulse encoder 1S decreases. In such a case, the syrup S is continuously delivered at a desired flow rate by controlling the energization of the rotor drive motor 1M based on the output pulse of the pulse encoder 1S.

FIG. 4 shows a control block of the beverage dispenser, and the flow rate of syrup, dilution water, carbonated water to be used for each sold beverage, the number of pulses of the pulse encoder and the flow meter according to the total amount of each liquid, and the delivery to be described later. A sampling period, which is a unit time of control, a dilution ratio for each sold beverage, an input device 30 having a key input unit for inputting the data of the delivery time of each liquid, and the supply control unit 2 when operated by an operator. A sales switch 31 that outputs a request signal,
It has a timer 32 that counts the delivery time of the syrup S, the diluted water W _A , and the carbonated water Wc by counting the clocks generated by a reference clock generation unit (not shown).

FIG. 5 shows the change of the output pulse when the flow rate of the syrup S in the syrup flow controller 1 changes, and the broken line shows the change of the output pulse of the pulse encoder 1S in the ideal syrup sending state (reference). Value), and the solid line is the actual measurement value of the output pulse obtained by sending out the syrup S whose viscosity has increased due to the temperature change. As shown in the figure, in the sampling cycles t ₁ to t _{5 which} are in a transient state until the rotation of the rotor drive motor 1M stabilizes, the deviation between the reference value and the actual measurement value becomes large. Since the flow rate fluctuation amount in each sampling cycle corresponds to the area of the shaded portion, the flow rate monitoring unit 4 based on the pulse as the measured value input from the pulse encoder 1S to the counter 41 in each sampling cycle. The amount of change in the flow rate with respect to the reference value is calculated by the calculation unit 43 to determine the energization correction amount of the energization unit 44.

Next, the operation of the beverage dispenser according to the first embodiment of the present invention will be described based on the flowchart shown in FIG. In the following description, the operation of mixing the dilution water W _A and the syrup S to produce a non-carbonated beverage will be described.

When the operator presses the sales switch 31, a sales request signal is input to the supply control unit 2. The supply controller 2 stores the sampling period t of the pulse encoder and the flow meter stored in the memory 3, the flow rate of the syrup S and the dilution water W _A , the pulse number of the pulse encoder and the flow meter according to the total amount, the delivery time, and Read the dilution ratio data as a reference value. Here, the supply control unit 2
Sets the sampling period t to X seconds. Further, the water solenoid valve 17, the water pump 18, and the dilution water solenoid valve 22A are energized (S1).

The dilution water flow meter 21 is used for the dilution water supply line 2
_A pulse having a frequency corresponding to the flow rate of the dilution water W _A flowing through 0 is output to the counter 41 of the flow rate monitoring unit 4. The sent out dilution water W _A passes through the dilution water solenoid valve 22A and is supplied to the multi-valve 29. Next, the supply control unit 2
The syrup solenoid valve 14 is energized after a certain time has elapsed from the start of the delivery of the dilution water. Further, the rotor drive motor 1M of the syrup flow controller 1 is energized. In this way, the sending operation is started (S2).

The syrup flow controller 1 forms a pressurized syrup S which flows into the main body 10 from the inflow portion 10a through the syrup supply line 13 between the teeth of the rotor 11 and the inner wall of the main body 10. It is held in the space C, and is fed along the inner wall of the main body 10 based on the rotation of the rotor 11, so that it is continuously flown out from the outflow portion 10b in a constant volume amount. The pulse encoder 1S outputs a pulse having a frequency according to the flow rate to the counter 41 of the flow rate monitoring unit 4 when the syrup S is sent. The counter 41 performs sampling by counting the number of pulses in the sampling cycle t (S3). The delivered syrup S passes through the syrup solenoid valve 14 and is supplied to the multi-valve 29. The multi-valve 29 sends out the sold beverage in which the syrup S and the dilution water W _A are mixed to the cup 50.

The counter 41 outputs the pulse count value of the pulse input from the dilution water flow meter 21 and the pulse encoder 1S to the supply control unit 2 and the comparison unit 42 in the sampling cycle t. The supply control unit 2 calculates the dilution ratio of the sold beverage being sent in real time based on the input pulse count value (S4). Here, when the calculated dilution ratio is different from the preset dilution ratio for the sold beverage (S5), the supply control unit 2 informs the comparison unit 42 about the pulse count values of the dilution water W _A and the syrup S, respectively. Allows comparison with the reference pulse value.
The comparison unit 42 outputs the comparison result according to the change amount of the flow rate with respect to the reference pulse value to the calculation unit 43. The calculation unit 43
For the syrup S, the energization correction amount of the rotor drive motor 1M is calculated so that the dilution ratio of the sold beverage becomes a preset value based on the above comparison result, and the energization unit 44 is supplied to the energization unit 44 via the supply control unit 2. Output the energization correction command. Current-carrying part 4
4 controls the energization of the rotor drive motor 1M based on the energization correction command (S6).

When the number of pulses input from the pulse encoder 1S is less than the number of pulses set according to the total amount of syrup S (S7), the supply control unit 2 passes a fixed time (X seconds) from the start of sampling. When (S8), the trigger signal is output to the counter 41 and the sampling cycle t
Is updated (S9), the flow rate of the dilution water W _A and the syrup S described above is monitored in a new sampling cycle t, and when the dilution ratio in the sampling cycle t changes, energization control of the rotor drive motor 1M is performed. .

When the cumulative number of pulses input from the dilution water flow meter 21 and the pulse encoder 1S from the start of sending reaches the number of pulses set according to the total amount (S7), the supply controller 2 determines the rotor drive motor. Stop energizing 1M,
Then syrup solenoid valve 14 and dilution water solenoid valve 22A
The energization is stopped to end the sending operation (S10).

According to the first embodiment described above, the dilution ratio of the sold beverage being delivered is calculated in real time based on the pulse corresponding to the flow rates of the dilution water W _A and the syrup S delivered at the same time, and the dilution ratio is calculated. When a change in the ratio occurs, the rotor drive motor 1M is sequentially driven so that the dilution ratio is set in advance. Therefore, the water pressure change of the dilution water W _A and the syrup S of the syrup S during the delivery of the drink for sale are controlled. Even if the flow rate fluctuates due to poor delivery or other unforeseen causes, it is possible to maintain the specified delivery conditions and deliver a fixed volume of liquid continuously and accurately. The selling operation can be continued while keeping it constant, and it is possible to stably sell the beverage for sale in which the dilution water W _A and the syrup S are in a uniform mixed state and have no shade. Further, it is also possible to perform the delivery control so as to maintain a predetermined dilution ratio with the liquid having the flow rate fluctuation as a reference.

Further, in the above-described first embodiment, the sequential drive control of the rotor drive motor to be controlled is performed so that the target dilution ratio is obtained.
_{When the} syrup S having good physical properties of water solubility and diffusibility when mixed with _A is used, even if the amount of the syrup S slightly changes, the influence on the taste may be small. When the physical properties of the syrup S are clear, an allowable range of the dilution ratio may be set, and the sequential drive control may be performed so that the dilution ratio falls within the allowable range.

Further, the delivery control described in the first embodiment is not limited to the delivery control of the non-carbonated beverage described above, and the carbonated beverage or the carbonated water Wc and the dilution water W _A can be controlled to a certain level. It is applicable to weakly carbonated beverages based on the mixing of liquids mixed in proportion and syrup S.

Regarding the syrup, in addition to using the above-mentioned single type of syrup S, other types of syrup sent through a syrup supply line (not shown) and syrup S are mixed to form a mixed syrup. It is also possible to use it, and it is also possible to supply the mixing syrup having a constant mixing ratio to the multi-valve 29 based on the above-mentioned delivery control. For example, when the concentrated juice syrup and the syrup containing pulp are supplied to the multi-valve 29 via separate syrup supply lines, the syrup flow rate adjustment provided in each syrup supply line is adjusted so that the mixing ratio of both syrups is always constant. It is possible to prevent excess and deficiency of the pulp by performing the sequential drive control of the container.

In the above-described embodiment, the liquid dispenser in which the beverage dispenser is provided with the syrup flow controller 1, the diluting water flow meter 21, and the carbonated water flow meter 26 has been described. It is possible to provide the syrup flow controller 1, the dilution water flow meter 21, and the carbonated water flow meter 26 in the vending machine of FIG. In addition, the present invention can be applied to a device that synchronizes a plurality of liquids with high precision and continuously delivers the liquids.

Further, since the syrup flow controller 1 outputs the flow rate signal corresponding to the flow rate of the liquid to be delivered from the pulse encoder 1S, is the flow rate of the delivered liquid appropriate for the delivery control amount? Whether or not it can be monitored.
From this, it is also possible to perform the sequential control for the flow rate fluctuation amount of the syrup S in each sampling period t described in FIG. 5 with a single liquid delivery line. The sequential control of the liquid delivery operation in the liquid delivery apparatus having one liquid delivery line will be described below.

FIG. 7 schematically shows a main part of a syrup dispenser as a liquid delivery device. This syrup dispenser
A constant volume type syrup flow controller 1 (delivery device) capable of continuously delivering a fixed volume of liquid to the syrup supply line 13.
Is provided to continuously deliver a fixed volume of syrup from the start of delivery. As shown in FIG.
The pulse encoder 1S outputs a pulse having a frequency corresponding to the flow rate of the syrup, and the rotor drive motor 1M whose energization is controlled based on the output pulse corresponding to the flow rate of the syrup S. The rotor drive motor 1M is energized and controlled by the energizing unit 44 based on the total amount of the syrup S stored in advance in the memory 3 and the reference pulse value according to the flow rate in the sampling cycle t. Other configurations and functions are the same as the configurations shown in FIG. 1, and thus redundant description will be omitted.

FIG. 8 shows a flow chart of the liquid delivery operation of the syrup dispenser. When the operator presses the sales switch 31, a sales request signal is input to the supply control unit 2. The supply control unit 2 reads the sampling period t of the pulse encoder, the flow rate of the syrup S, the number of pulses of the pulse encoder 1S according to the total amount, and the data of the transmission time stored in the memory 3 as reference values.
Here, the supply control unit 2 sets the sampling cycle t to X seconds (S1). Further, the syrup solenoid valve 14 and the rotor drive motor 1M of the syrup flow controller 1 are energized. In this way, the sending operation is started (S2).

The syrup flow controller 1 forms a pressurized syrup S flowing into the main body 10 from the inflow portion 10a through the syrup supply line 13 between the teeth of the rotor 11 and the inner wall of the main body 10. It is held in the space C, and is fed along the inner wall of the main body 10 based on the rotation of the rotor 11, so that it is continuously flown out from the outflow portion 10b in a constant volume amount. The pulse encoder 1S outputs a pulse having a frequency according to the flow rate to the counter 41 of the flow rate monitoring unit 4 when the syrup S is sent. The counter 41 performs sampling by counting the number of pulses in the sampling cycle t (S3). The delivered syrup S passes through the syrup solenoid valve 14 and is supplied to the multi-valve 29. The multi-valve 29 delivers the syrup S to the cup 50.

The counter 41 outputs the pulse count value of the pulse input from the pulse encoder 1S to the comparing section 42 in the sampling period t. The comparison unit 42
The comparison result obtained by comparing the actual measurement value of the syrup S and the reference pulse value based on the pulse count value is output to the calculation unit 43. Here, when there is a deviation of the measured pulse count value with respect to the reference pulse value (S4), the calculation unit 43
Is the change amount of the encoder pulse with respect to the reference pulse value of the actual measurement value in the sampling cycle (S5),
The energization correction amount of the rotor drive motor 1M that corrects the flow rate of the syrup S to the reference pulse number is calculated, and the energization correction command is output to the energization unit 44 via the supply control unit 2. Current-carrying part 44
Performs energization control of the rotor drive motor 1M based on the energization correction command (S6).

When the number of pulses input from the pulse encoder 1S is less than the number of pulses set according to the total amount of syrup S (S7), the supply control unit 2 passes a fixed time (X seconds) from the start of sampling. When (S8), the trigger signal is output to the counter 41 and the sampling cycle t
Is updated (S9), the flow rate of the syrup S described above is monitored in a new sampling cycle t, and when the flow rate fluctuation occurs in the sampling cycle t, energization control of the rotor drive motor 1M is performed.

The supply controller 2 stops energizing the rotor drive motor 1M when the cumulative number of pulses input from the pulse encoder 1S from the start of transmission reaches the number of pulses set according to the total amount (S7). Then, the energization of the syrup solenoid valve 14 is stopped and the sending operation is ended (S1).
0).

According to the liquid delivery operation described above, it is possible to monitor whether or not an appropriate flow rate can be obtained with respect to the delivery control amount for the liquid to be delivered, so that the flow rate fluctuation occurs at each delivery operation and the delivery operation is stable. The inconvenience of not doing can be prevented. Further, the liquid can be continuously delivered at a constant flow rate from the start of delivery to the end of delivery. For example, an appropriate amount of syrup can be evenly applied to ice by using it as a syrup feeder for shaved ice. As for the delivery operation, in addition to the delivery at a fixed time by the operator pressing the sales switch 31 as described above, while the operator continues to press the sales switch 31, there is no time constraint and the operation is continuously performed. It is also possible to provide a continuous delivery mode for delivering, and it becomes possible to accurately convert the total amount of liquid (delivery amount) with time.
In such a sending operation, a reference pulse value and a measured value in a predetermined sampling cycle t are compared, and the energization control of the rotor drive motor is performed based on the comparison result, whereby the physical properties of the liquid and the device are controlled. The specified sending condition can be maintained without depending on the characteristics of the.

Such a delivery control can be applied to the delivery control of a liquid such as oil for automobiles which can cause a change in viscosity, in addition to the use for producing the syrup S as described above.

FIG. 9 schematically shows a main part of another liquid delivery apparatus according to the first embodiment of the present invention. This liquid delivery device is provided in the dilution water supply line 20, carbonated water supply line 25, and syrup supply line 13 of a beverage dispenser that manufactures cup-type beverages as sold beverages, and is capable of continuously delivering a fixed volume of liquid. The constant volume type flow rate regulators 21, 26, and 1 are controlled based on the dilution ratio of the beverage sold, and the flow rates for the syrup S, the dilution water W _A , and the carbonated water Wc are as described above. Can be controlled based on the rotational drive of the set of rotors 11. The parts having the same configurations and functions as those in FIG. 1 are designated by the same reference numerals, and the duplicate description will be omitted.

According to the above-mentioned other liquid delivery device, even when various liquids whose physical properties such as viscosity cannot be predicted are simultaneously delivered based on the dilution ratio, the flow rate of each liquid is set to one set of rotations. Based on the rotational drive of the child 11, it becomes possible to control with a constant volume amount with high precision in the sampling cycle. Further, the liquid that serves as a reference for the flow rate control can be arbitrarily selected. Further, by monitoring the flow rate using the flow rate adjusters 21, 26, and 1 which are similarly configured, it is possible to suppress the variation in the flow rate detection accuracy. As a result, in the delivery control for delivering a plurality of liquids at the same time, it is possible to realize a delivery operation in which it is difficult to ensure accuracy with the delivery control of a single liquid.

When a liquid whose flow rate fluctuation can be predicted empirically or a liquid whose flow rate fluctuation factor can be managed with a certain degree of accuracy is to be sent out, the delivery control can be performed with this liquid as a reference. Is. For example, when the fluctuation of the water pressure of the dilution water W _A can be managed with a certain accuracy, the dilution water W _A and another liquid other than the above syrup S are used as a reference to maintain the dilution ratio with other liquids. The control process is simplified by performing the delivery control so that the delivery operation of (1) is synchronized, and thereby the delivery control can be speeded up, so that the target dilution ratio can be quickly matched.

The motor used as the rotor drive motor is
The AC motor is not limited to the DC motor and may be an AC motor. Further, the energization unit 44 is also based on the current control for the energization control of the DC motor, and also on the basis of the PWM (Pulse Width Modulation) control in which the rotation speed is changed by changing the ratio (duty cycle) of the pulse width Hi to Low. It is also possible to control energization by.

FIG. 10 schematically shows a main part of a liquid delivery apparatus according to the second embodiment of the present invention. This liquid delivery device is a dilution water flow meter 21A for measuring the flow rate of a liquid in a dilution water supply line 20, a carbonated water supply line 25, and a syrup supply line 13 of a beverage dispenser that manufactures cup-type beverages as sold beverages, carbonated water. A flow meter 26A and a syrup flow meter 1A are provided, and an electric flow regulator 1R for varying the delivery pressure of the syrup S according to the flow rate fluctuations of the dilution water W _A and the carbonated water Wc is provided in the syrup supply line 13. It is provided. Dilution water flow meter 21A,
The carbonated water flowmeter 26A and the syrup flowmeter 1A are provided inside the main body 10 with a pair of rotors 1 including oval gears.
1, a pulse encoder 21 that is connected to the shaft 11A of the rotor and outputs a pulse having a frequency according to the rotation speed.
W _A , 26 Wc, and 1S. The other configurations are the same as those of the liquid delivery apparatus described in the first embodiment, and thus duplicated description will be omitted.

FIG. 11 is a cut-away view of the flow path of the flow regulator 1R, showing a valve chamber 51 into which the syrup S pressurized with carbon dioxide gas flows from the syrup supply line 13, a valve port 52 through which the syrup S flows out, and A valve seat 53 provided in the valve opening 52, a needle valve 54 arranged in the valve chamber 51 and having a tapered tip end portion in close contact with the valve seat 53, and the valve chamber 5
1, a valve body 55 having a valve opening 52 and a valve seat 53, a threaded portion 56 for threadably engaging the needle valve 54 with the valve body 55, and a stepping motor 57 for rotating the needle valve 54. , Ring-shaped stator coils 58 and 59 that are energized and excited in opposite directions, a rotor 61 to which a cylindrical permanent magnet 60 is fixed and rotate together with the needle valve 54, a rotor 61 that is rotatably accommodated, and a stator on the outer periphery. The rotor 61 has a case 62 to which the coils 58 and 59 are fixed, and the spring 61 inserted between the rotor 61 and the case 62 prevents the needle valve 54 from rattling.

In the flow regulator 1R, when the rotor 61 is rotated by energizing the stator coils 58 and 59, the needle valve 54 screw-engaged with the valve body 55 by the screw portion 56 moves vertically. The needle valve 54 allows the syrup S having a flow rate corresponding to the gap size of the valve opening 52 formed between the needle valve 54 and the valve seat 53 to pass through and deliver the syrup to the syrup supply line 13. Energization of the stator coils 58 and 59 is performed by the supply control unit 2 shown in FIG.

Next, the operation of the beverage dispenser according to the second embodiment of the present invention will be described with reference to the timing chart shown in FIG. In the following description, the operation of mixing the dilution water W _A and the syrup S to produce a non-carbonated beverage will be described.

When the purchaser presses the sale switch 31, the supply control unit 2 causes the sampling period t of the pulse encoder stored in the memory 102, the flow rate of the syrup S, the number of pulses of the pulse encoder 1S according to the total amount, the flow rate of the diluting water W _a, pulse encoder 21W _a corresponding to the total
The pulse number data and the dilution ratio are read and the syrup solenoid valve 14 is energized. Further, the supply controller 2 includes a dilution water solenoid valve 22 provided in the dilution water supply line 20.
Energize A.

The syrup flow meter 1A comprises a syrup solenoid valve 1
The pressurized syrup S flowing into the inside of the main body 10 from the inflow portion 10a through the syrup supply line 13 based on the opening operation of 4 is held in the space C formed between the rotor 11 and the inner wall of the main body 10, Based on the rotation of the rotor 11, the main body 10
It is made to move along the inner wall of the outlet and flow out from the outlet 10b. The pulse encoder 1S outputs a pulse having a frequency based on the rotation of the rotor 11 to the supply control unit 2. The sent syrup S passes through the flow regulator 1R and the syrup solenoid valve 14, is supplied to the multi-valve 29 provided at the end of the syrup supply line 13, and is supplied through the dilution water supply line 20 to the dilution water W _A. When mixed with, it becomes a drink for sale and is poured into the cup 50.

The dilution water flow meter 21A includes a dilution water solenoid valve 22.
The dilution water W flowing into the main body 10 from the inflow portion 10a through the dilution water supply line 20 based on the opening operation of A.
_A is a space C formed between the rotor 11 and the inner wall of the main body 10
And is moved along the inner wall of the main body 10 based on the rotation of the rotor 11 to flow out from the outflow portion 10b. The pulse encoder 21W _A outputs a pulse having a frequency based on the rotation of the rotor 11 to the supply control unit 2. The sent out dilution water W _A passes through the dilution water electromagnetic valve 22A and is supplied to the multi-valve 29 provided at the end of the dilution water supply line 20.

FIG. 12 shows a timing chart of the sending operation of the syrup S and the dilution water W _A , in which the counter 41 has the pulse encoder 21W _{A at the} sampling cycle t.
And the pulse count value of the pulse input from 1S is output to the supply control unit 2 and the comparison unit 42. Supply control unit 2
Calculates the dilution ratio of the beverage for sale being sent in real time based on the input pulse count value. Also, when a certain time (X seconds) has elapsed from the start of sampling,
A trigger signal is output to the counter 41 to update the sampling period t, and the flow rate of the dilution water W _A and the syrup S is monitored at the new sampling period t.

Here, time t₁As shown in,_A
An unexpected drop in water pressure occurred at time t ₂Flow rate decreases over time
Diluted for a while and then continued to be delivered at a reduced flow rate.
Beverages with a high syrup concentration due to changes in the ratio were sent.
Will be issued. The supply control unit 2 operates at the sampling cycle t.
The dilution ratio calculated in
When the dilution ratio differs from the set dilution ratio, the comparison unit 42
W_AComparison of pulse count value with reference pulse value
To perform. The comparison unit 42 determines the flow rate with respect to the reference pulse value.
The comparison result according to the change amount of is output to the calculation unit 43. Performance
The calculation unit 43 determines whether the sold beverage is rare based on the above comparison result.
The flow rate is regulated so that the release ratio becomes a preset value.
Calculate the energization amount of the data 1R and energize it via the supply control unit 2.
An energization command is output to the section 44. The energizing unit 44 is an energizing command.
Based on the flow regulator 1R stator coil 5
Energization control is performed on 8 and 59. Flow regulation
The stator 1R is used to energize the stator coils 58 and 59.
By rotating the rotor 41 based on
Move the valve 34 to adjust the gap size of the valve port 32 according to the energization amount.
Set the interval. In this way, the delivery pressure of the syrup S
By changing the force, the time t₂Subsequent syrup style
Correct the amount from the level shown by the broken line to the level shown by the solid line.
It

The supply control unit 2 uses the pulse encoder 21W.
When the number of pulses output from _A reaches the set number of pulses, the energization of the dilution water solenoid valve 22A is stopped. As a result, the dilution water supply line 20 is closed and the dilution water W _A
The sending operation of is stopped.

The supply controller 2 also stops energizing the syrup solenoid valve 14 when the number of pulses output from the pulse encoder 12S reaches the set number of pulses. As a result, the syrup supply line 13 is closed and the syrup S delivery operation is stopped.

According to the above-described second embodiment, the dilution ratio of the dilution water W _A and the syrup S in the sampling cycle t is monitored, and when the dilution ratio fluctuates, the flow regulator provided in the syrup supply line 13 is provided. 1
Since the flow rate is adjusted by controlling the opening / closing amount of R and changing the delivery pressure of the syrup S, the output of the pulse encoder is output as compared with the method in which the rotor 11 is actively driven by an actuator such as a motor. Noise of driving load and rotation fluctuation is less likely to be superimposed on the pulse, the flow rate measurement accuracy is improved, and a metering error that is less likely to cause measurement errors due to physical properties of the liquid such as viscosity fluctuations can be made. It can be sent well.

In the second embodiment, a configuration has been described in which the opening / closing amount of the flow regulator 1R is electrically controlled by a motor, but the operator may manually adjust the opening / closing amount as necessary.

Further, in the second embodiment, the flow rate is measured by using a flow meter in which a set of rotors is housed in the main body, but if the detection accuracy of the flow rate can be secured, an impeller is installed in the main body. A flow meter which is housed and detects the rotation of this impeller may be used, and in this case, the device cost can be made low.

[0068] Further, in addition to monitoring the delivery status of the dilution water W _A and syrups S based on the flow rate, may be monitored the flow rate of the dilution water W _A and syrups S.

The motor as a drive source used for controlling the flow rate described above is configured to generate a rotational torque according to the amount of energization. For example, as described in the first embodiment, the motor is rotated. When trying to perform liquid delivery control by positively driving the rotor with a child drive motor,
Depending on the rotation accuracy, the upper limit or the lower limit of the flow rate adjustment range is restricted, and desired delivery control may not be realized. Furthermore, the above-mentioned restrictions may be promoted depending on the physical properties of the liquid to be delivered, and energization control is performed so as to suppress variations in rotation accuracy due to individual differences in motor energization characteristics and aging, and to always exhibit stable rotation characteristics. There is a need to do.

FIG. 13 schematically shows a main part of the liquid delivery apparatus according to the third embodiment. This liquid delivery device
The syrup flow controller 1 described in the first embodiment has a memory 44A that stores a reference current value when the rotor drive motor 1M provided in the syrup flow rate regulator 1 exhibits the energization characteristics with the best rotation accuracy and response. Therefore, the energizing unit 44 compares the reference current value stored in the memory 44A with the actual measurement value when the rotor drive motor 1M is energized, and matches the reference current value when the current value is deviated. Energization control is performed. Since other configurations are the same as those of the first and second embodiments, duplicated description will be omitted.

FIG. 14 shows a state in which the current value at the time of sending the syrup S deviates from the reference current value. When the syrup S is sent under the same sending conditions, the driving starts as shown in the figure. Immediately after t ₁ seconds, a current increase of ΔI occurs as compared with the energization characteristic based on the reference current value. If such a change in energization characteristics suddenly occurs due to individual differences of motors, aging, or the like, an error occurs in the desired flow rate and total amount of syrup S.
Of the rotor drive motor 1M in the sampling cycle t described in the above embodiment is monitored based on the reference current value, and when the current value is deviated, the energization control is performed so as to match the reference current value. To do.

According to the third embodiment described above, changes in the energization characteristics of the motor as the drive source are monitored based on the sampling cycle t, and when changes in the energization characteristics occur, they are matched with the reference current value. Since the rotor drive motor is sequentially driven as described above, it is possible to suppress variations in rotation accuracy due to individual differences in motor energization characteristics and aging, and to always exhibit stable rotation characteristics.

Since the energizing section 44 controls the energization of the rotor drive motor 1M with reference to the reference current value stored in the memory 44A, the energization control can be performed without the supply control section 2. This makes it possible to speed up energization control. In particular, when applied to the flow rate controller of a beverage dispenser, it enables multiple liquids to be continuously delivered with high accuracy based on the dilution ratio and with a fixed volume, and the response of the delivery control to changes in the dilution ratio. It is possible to improve the sex.

In the third embodiment, the rotor drive motor 1M of the syrup flow rate regulator 1 has been described, but the same energization control can be performed for the other rotor drive motors 21M and 26M.

The third embodiment is not limited to the above-mentioned delivery control of non-carbonated beverages, and carbonated beverages and liquids in which carbonated water Wc and dilution water W _A are mixed at a certain ratio. It can be applied to the delivery control of a weak carbonated beverage based on mixing with syrup S.

FIG. 15 shows the construction of another rotor incorporated in the above-mentioned flow rate regulator and flowmeter. In addition to the above-mentioned rotor 11, the triangular rice ball type gear 11 shown in FIG.
The eyebrow-shaped rotor 11F shown in D and (b) and the clover-shaped rotor 11H shown in (c) may be used. Mayu-type rotor 1
The outer circumferences of the 1F and the clover-type rotor 11H are formed as smooth surfaces, and the eyebrows-type rotor 11F relatively rotates based on the meshing of the gear 11G attached to the shafts 11A and 11B. As described above, it is possible to change the liquid delivery property by the shape of the pair of rotors housed in the main body 10. In this case, since the pressure loss in the liquid pipe changes depending on the shape of the rotor,
It is preferable to use a set of rotors according to physical properties such as viscosity. Further, in the triangular rice ball type gear 11D and the oval type gear 11E described in the second embodiment, the pressure transmitted through the liquid effectively acts as an external force for promoting the rotation of the rotor, so that the viscosity of the liquid is Even if it is large, the pressure loss can be reduced.

Further, in the above-mentioned flow rate regulator, the configuration in which the two rotors are housed in the main body 10 having an elliptical shape or a figure 8 shape has been described. However, one set of rotors is a rotor other than two. May be formed in combination, or may be housed in a main body having a shape corresponding to the number of rotors.

In the liquid delivery method and the liquid delivery apparatus described above, the delivery control for delivering the liquid continuously has been described. However, continuous delivery includes delivery that includes an extremely short delivery stop operation during continuous delivery of the liquid. May be
In this case, it is preferable that the extremely short delivery stop operation is performed for a time in which the flow of the liquid being delivered does not stop due to the inertia and viscosity of the liquid delivered in the conduit. Also,
When a plurality of liquids are delivered based on the dilution ratio, it is preferable to control the delivery operation by monitoring the flow rate of each liquid so that the dilution ratio based on the actual flow rate is always a constant value.

[0079]

As described above, according to the liquid delivery method and the liquid delivery apparatus of the present invention, the flow rate of the liquid per unit time is monitored, and when the flow rate changes, the reference flow rate in the unit time is obtained. Since the delivery control is performed so as to match with the above, the specified delivery conditions can be maintained without depending on the physical properties of the liquid or the characteristics of the device, and a constant volume of liquid can be delivered continuously. it can.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a main part of a liquid delivery device according to a first embodiment.

FIG. 2 is a schematic configuration diagram showing a pipe of the beverage dispenser according to the first embodiment.

3A and 3B show a syrup flow rate regulator according to the first embodiment, where FIG. 3A is a plan view, FIG. 3B is a side view, and FIG. 3C is a sectional view taken along the line AA in FIG. 3B.

FIG. 4 is a control block diagram of the beverage dispenser according to the first embodiment.

FIG. 5 is a characteristic diagram showing a change in output pulse when a flow rate fluctuation occurs in the syrup S in the syrup flow rate regulator.

FIG. 6 is a flowchart of the operation of the beverage dispenser according to the first embodiment.

FIG. 7 is a schematic configuration diagram showing a main part of a syrup delivery device as a liquid delivery device.

FIG. 8 is a flowchart of a liquid delivery operation of the syrup dispenser.

FIG. 9 is a schematic configuration diagram showing a main part of another liquid delivery apparatus according to the first embodiment.

FIG. 10 is a schematic configuration diagram showing a main part of a liquid delivery device according to a second embodiment.

FIG. 11 is a sectional view of a flow regulator according to a second embodiment.

FIG. 12 is a timing chart of a syrup S and dilution water W _A delivery operation according to the second embodiment.

FIG. 13 is a schematic configuration diagram showing a main part of a liquid delivery device according to a third embodiment.

FIG. 14 is a characteristic diagram showing a state in which the current value at the time of sending syrup deviates from the reference current value.

FIG. 15 is a sectional view showing a configuration of another rotor incorporated in the flow rate regulator and the flow meter.

[Explanation of symbols]

1, syrup flow controller 1A, syrup flow meter 1
M, rotor drive motor 1S, pulse encoder 1R, flow regulator 2, supply controller 3, memory 4, flow rate monitor 5, indicator 6, syrup tank 7A, carbon dioxide gas supply line 7B, carbon dioxide gas supply line 8A, carbon dioxide Gas control valve 8B, carbon dioxide control valve 10, main body 10A, speed reducer 10B, lid 10a, inflow part 10b, outflow part 11, rotor 11A, shaft 11B, shaft 11D, triangular diaper type gear 11F, eyebrow type rotation Child 11G, gear 11H, clover type rotor 12S, pulse encoder 13, syrup supply line 14, syrup solenoid valve 15, syrup cooling coil 15A, cooling water tank 15B, evaporator 15C, refrigerant pipe line 15D, ice 16, intake pipe 17, Water solenoid valve 18, water pump 19, dilution water cooling coil 20, dilution water supply line 21, dilution water The amount meter 21A, the impeller 22A, dilution water solenoid valve 22B, the solenoid valve 23, the water branch lines 24, carbonator 25, carbonated water supply line 26,
Carbonated water flow meter 26A, impeller 27, carbonated water cooling coil 28, carbonated water solenoid valve 29, multi valve 30, input device 31, sales switch 32, timer 41, counter 42, comparison unit 43, operation unit 44A, memory 44. , Energizing part 50,
Cup 51, valve chamber 52, valve opening 53, valve seat 54, needle valve 55, valve body 56, screw portion 57, stepping motor 58, stator coil 59, stator coil 60,
Permanent magnet 61, rotor 62, case 63, spring

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Noboru Chigi             Sanyo, 5-20-8 Asakusabashi, Taito-ku, Tokyo             Electric Vending Machine Co., Ltd. F-term (reference) 3E047 AA01 BA04 DC02                 3E082 AA04 BB02 CC04 CC10 DD05

Claims (24)

[Claims] 1. A liquid delivery line for delivering a liquid is provided with a dispenser accommodating a rotor for continuously delivering a fixed volume of the liquid, and the liquid is delivered to the liquid delivery line via the dispenser. Then, the change in the flow rate of the liquid in the delivery unit per unit time is monitored, and when the change in the flow rate occurs, the delivery of the liquid is adjusted so that the flow rate of the liquid in the unit time matches a reference flow rate. A liquid delivery method characterized by performing control. 2. The liquid delivery method according to claim 1, wherein a change in the flow rate is detected based on a pulse output according to the rotation speed of the rotor. 3. The liquid delivery method according to claim 1, wherein the rotational drive of the rotor is controlled according to the change in the flow rate. 4. A liquid delivery line for delivering a liquid is provided with a flow meter for measuring the flow rate of the liquid, the liquid is delivered to the liquid delivery line via the flow meter, and a flow rate of the liquid in a unit time is measured. A liquid delivery method comprising monitoring a change and controlling the delivery pressure of the liquid delivery line so that the flow rate of the liquid in the unit time matches a reference flow rate when the change in the flow rate occurs. . 5. The liquid delivery method according to claim 1, wherein the liquid delivery line includes another liquid delivery line provided according to the type of liquid. 6. The liquid delivery method according to claim 1, wherein the reference flow rate is a flow rate measured in advance for the liquid delivered through the liquid delivery line. . 7. The liquid delivery method according to claim 1, wherein the reference flow rate is a flow rate of another liquid that is delivered through the other liquid delivery line. 8. The method according to claim 1, wherein the reference flow rate is a flow rate based on a dilution ratio with another liquid that is delivered through the other liquid delivery line. Liquid delivery method. 9. The liquid delivery method according to claim 1, wherein the liquid and the other liquid are pressurized liquids. 10. A liquid delivery line capable of delivering various liquids having different physical properties, a main body having an inflow part into which the liquid flows and an outflow part from which the liquid flows out, and by rotating in the main body, A rotor that moves the liquid flowing in from the inflow portion along the inner wall of the main body by a fixed volume amount and continuously delivers the liquid from the outflow portion to the liquid delivery line, and a delivery condition is always satisfied when delivering the liquid. Thus, it has a control unit for sequentially controlling the rotation of the rotor in a unit time, and has a delivery device for continuously delivering the liquid to the liquid delivery line in a fixed volume amount based on the rotation of the rotor. And a liquid delivery device. 11. The liquid delivery apparatus according to claim 10, wherein the rotor includes a pulse encoder that outputs a pulse having a frequency corresponding to the rotation speed as a flow rate signal. 12. The liquid delivery apparatus according to claim 10, wherein the rotor includes a rotor drive motor as a drive source. 13. The flow rate monitoring section, wherein the control section inputs the flow rate signal in the unit time and outputs an energization correction command so as to be the reference flow rate when a deviation from a reference flow rate is generated, 13. A supply control unit for controlling energization of the rotor drive motor so as to always satisfy the sending condition based on an energization correction command.
The liquid delivery device according to any one of items. 14. The flow rate monitoring unit uses the flow rate of another liquid delivered through another liquid delivery line different from the liquid delivery line as the reference flow rate, and sets a dilution ratio with the other liquid as the unit time. 14. The liquid delivery apparatus according to claim 13, wherein the current supply correction command for the rotor drive motor is output so as to maintain the temperature at 1. 15. The rotor according to any one of claims 10 to 14, wherein the pressurized liquid as the liquid is caused to flow out from the outflow portion by a fixed volume amount based on the rotation. Liquid delivery device as described. 16. The liquid delivery apparatus according to claim 10, wherein the rotor is a set of rotors formed by combining a plurality of rotors. . 17. The pair of rotors comprises two meshing circular gears, two multi-sided gears each meshing with at least three sides, two meshing oval gears, coaxially coupled. The liquid delivery device according to claim 16, wherein the liquid delivery device is two eyebrow type rotors that mesh with the gears or two clover type rotors that rotate in a coupled manner. 18. A liquid delivery line capable of delivering various liquids having different physical properties, a flow meter which outputs a flow rate signal based on the flow rate of the liquid, and a liquid delivery line which is delivered based on the flow rate signal through the liquid delivery line. And a flow regulator that varies the delivery pressure of the liquid, and monitors the flow rate signal output from the flow meter in a unit time to detect a deviation from the reference flow rate, and responds to the reference flow rate. A liquid delivery apparatus comprising a control unit that drives and controls the flow regulator so as to have a delivery pressure. 19. The liquid delivery apparatus according to claim 18, wherein the liquid delivery line includes another liquid delivery line that delivers another liquid different from the liquid. 20. The liquid delivery system according to claim 18, wherein the flow regulator has a needle valve for varying a gap size of a valve port through which the liquid passes, and a motor for driving the needle valve. apparatus. 21. The control unit maintains a dilution ratio with the other liquid in the unit time, using the flow rate of the other liquid delivered through the other liquid delivery line as the reference flow rate. 21. The method according to claim 18, wherein the flow regulator is drive-controlled as described above.
The liquid delivery device according to any one of items. 22. A liquid delivery line capable of delivering various liquids having different physical properties, another liquid delivery line for delivering another liquid different from the liquid, and the other liquid delivery line delivered via the other liquid delivery line. A flow meter that outputs a flow rate signal based on the flow rate of another liquid, and a dispenser that continuously delivers the liquid of a fixed volume based on the flow rate signal to the liquid delivery line based on rotational driving of a rotor. A liquid delivery apparatus comprising: a control unit that controls a rotational drive of the rotor by monitoring a change in the flow rate signal per unit time. 23. The liquid delivery apparatus according to claim 22, wherein the rotor includes a rotor drive motor as a drive source. 24. The control unit controls the rotational drive of the rotor so that a dilution ratio of the other liquid to the liquid is constant in the unit time. Item 24. The liquid delivery device according to any one of items 23.