KR930010666B1 - Raw material's quantity control system of vending machine - Google Patents

Abstract

The apparatus easily and precisely adjusts the raw material of the vending machine by controlling the output period of the raw material, specially various kinds of raw materials via one controller. The apparatus comprises a PPI (4a) sending the adjustment period data to a microprocessor (1); a rotary dip switch (S1) sending the adjustment period data to the output terminal (IN1) of the PPI (4a); a 7 segment display (4b) displaying the position of the current adjusted raw material; a push button switch (S2) connected to an input terminal (IN2) of the PPI (4a) and controlling the output (Out1,Out2) states.

Description

Electronic material control device of vending machine

1 is a conventional cam timer vending machine raw material amount control device.

2 is a conventional electronic timer type vending machine raw material amount control device.

3 is an electronic raw material amount adjusting apparatus according to the present invention.

4 is a configuration of the vending machine control device using the raw material amount control device of the present invention.

* Explanation of symbols for main parts of the drawings

1: microprocessor 2: memory

3: Raw material quantity output time selector 4: Electronic material quantity controller

4a: PPI 4b: 7 segment display

S1: Rotary Hex Dip Switch S2: Push Button Switch

SV: Solenoid Valve for Feeding Raw Material

The present invention relates to an electronic vending machine control device, and more particularly, to an electronic raw material amount control device of a vending machine, which is adapted to make the amount of raw material simple and accurate.

That is, the present invention relates to a control device of a beverage vending machine. In the related art, all the controls are used as a sequence using a relay, but in the present invention, the amount of raw materials or the amount of raw materials are improved by the electronic method. Easy and precise adjustment

In the present invention, the amount of raw material is controlled by controlling the on / off time of the solenoid valve for raw material injection. In the raw material amount control method of the conventional vending machine, a cap (CAM) timer method and an electronic timer method are used. First, the cap timer method rotates the switch (S) and the cam (C) to turn on / off the power as shown in FIG. Motor (M), a speed reducer (9D) for reducing the speed of the motor (M), a cam (C) for adjusting the solenoid on / off time, and a solenoid valve (SV) through which the raw material is entered. In the cam timer system of the above configuration, the solenoid valve SV contact on / off of the vending machine is determined by the long axis r1 and the short axis r2 of the cam C operated by the timer drive signal, and at this time, The off time is determined by the shape of the rotational speed W by the drive motor M and the reduction gear D, and the long axis r1 and the short axis r2 of the cam.

Here, the amount of raw material of the vending machine can be controlled by changing the rotational angular velocity (W) of the cam according to the reduction ratio of the driving motor (M) and the speed reducer (D), and there are two methods of changing and controlling the raw material amount adjustment cam. The mechanical adjustment is required to adjust the pressure, and the same number of cams as the control element should be used. Secondly, the electronic timer system is composed of a switch (S) for turning on / off the power, a time adjustment volume (V), a time adjustment timer (T), and a solenoid valve (SV) for controlling the entry and exit of raw materials as shown in FIG. In this type of electronic timer system, the solenoid valve (SV) contact on / off of the vending machine is determined by the output contact of the electronic timer (T) operated by the timer drive signal, and the on / off time is the electronic timer. It is determined by the time-controlled volume V attached to (T).

However, in the prior art as described above, since the cam timer uses a mechanical driving device, the noise and vibration are severe, and because it is large and heavy, it takes up a lot of attachment place when installed inside the vending machine. Inconvenient disadvantages that can be adjusted and the electronic timer method is difficult to control the exact amount of raw material, deviation occurs according to the individual, and the timer has to be attached to the quantity of the solenoid and the motor has a disadvantage of high cost and production time increases.

Therefore, the present invention aims to provide a new raw material amount adjusting device which solves the difficulty of raw material amount adjustment and installation and A / S, which is a problem of the prior art. First, referring to the configuration of the electronic raw material amount control circuit of the present invention as shown in FIG. 3, a PPI (Parallel Peripheral Interface) 4a is connected to the microprocessor 1, and an input terminal (PPI 4a) of the PPI 4a is connected. Connect the rotary hexadecimal dip switch (S1) to the INI), and pushbutton switch (P1) in parallel with the resistor (R1) (pull-up) to the input terminal (IN2) of the PPI (4a). One end of S2) is connected and the other terminal of the push button switch S2 is grounded. Then, the rotary hexadecimal dip switch S1 is connected to the output terminal Out1 of the PPI 4a and the 7 segment display 4b is connected to the output terminal Out2 to inform the position of the amount of raw material currently being adjusted.

The vending machine adjusting device can be configured as shown in FIG. 4 by using the electronic raw material amount adjusting device 4 configured as described above. As shown in FIG. 4, the electronic raw material amount adjusting device is connected to the microprocessor 1 to which the memory 2 is connected, and the output of the microprocessor 1 is connected to each raw material amount output time selector 3. It is configured to be connected to a solenoid valve (SV) for inputting raw materials which is driven by the time selected by the raw material quantity output time selecting section 3 to control the entry and exit of raw materials.

The operation state of the present invention configured as described above will be described as follows. First, a method of setting an operation time will be described with reference to FIG. 3. After converting the output (Out1) value of the PPI (4a) from the 'low' state to the 'high' state and reading the pressure value (IN1) of the PPI (4a) through the rotary hexadecimal dip switch, the value is shown in the table below. Same as 1.

TABLE 1

If the pushbutton switch S2 is not pressed, the input terminal IN2 of the PPI 4a becomes 'high' through the resistor r1, and when the pushbutton switch S2 is pressed, the pushbutton switch S2 becomes 'low'. When the first pushbutton switch S2 is pressed, 1 is displayed on the 7 segment display 4b through the output terminal Out2.

That is, when the power of the equipment is first 'on', '7' is displayed on the seventh segment display 4b, and then, when the pushbutton switch S2 is pressed, '1' is displayed on the seven segment display 4b. At this time, when the hexadecimal dip switch S1 is set by outputting 'high' to the output (Out1) of the PPI 4a and the 'high' signal, the microprocessor 1 inputs the input value IN1 of the PPI 4a. You will read At this time, when the pushbutton switch S2 is pressed, the value read through the input terminal of the PPI 4a is stored in the memory 2 through the microprocessor 1 as shown in FIG. 4, and the 7 segment display 4b is '2'. 'Is displayed.

Here, '1' displayed on the 7 segment display 4b determines the time for driving II in FIG. 4, and '2' determines the time for driving I2. … n determines the time to drive In. That is, the values of the operating time of I1 to In are set in the electronic raw material amount adjusting device 4.

In the configuration of the electronic vending machine adjusting device of FIG. 4, the values set in the electronic raw material amount controller 4, i.e., I1, I2,... … The operating time of In is stored in the memory 2.

Thereafter, when the operating time of I1 is required, the microprocessor 1 reads the time of I1 from the memory and converts this value into a time for turning on the solenoid valve SV through the raw material quantity output time selector 3. I1 by value. … The on / off output signal of In is sent out, and the solenoid valve (SV) for raw material input is operated for that time.

Therefore, the present invention is an electronic method, so there is no noise and vibration, and it is a digital method, so it is possible to precisely adjust the amount of raw materials. .

Claims (1)

In the control device of the vending machine for controlling the operation of the solenoid valve (SV) using the microprocessor (1), the control of the amount of raw material set in connection with the microprocessor (1) is applied to the microprocessor (1) And a rotary hexadecimal dip switch S1 which is set by the PPI 4a and the output Out1 of the PPI 4a to apply data of each raw material adjustment time to the input terminal IN1 of the PPI 4a. A 7-segment display 4b which is operated by the output Out2 of the PPI 4a to indicate the position of the amount of raw material currently being adjusted, and is connected to an input terminal IN2 of the PPI 4a and is connected to the PPI 4a. It is composed of push button switch (S2) to control the output (OUt1, Out2) state of the electronic material amount of the vending machine, characterized in that it is configured to easily and accurately control the amount of raw material of the vending machine by controlling the output time of each raw material quantity Regulator.