JP2000300776A - Pachinko ball delivery device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the consumption of a memory and facilitate the change of a driving system by allowing a stepping motor to be driven without using a data table. SOLUTION: A control circuit for controlling a stepping motor reads basic data (1) of eight binary digits '00010001' for instructing A-phase excitation, and transmits it to a driving circuit to excite the A-phase of the stepping motor. The control cirucit then shifts the basic data (1) by one binary digit to the left to originate binary digit string data (2) '00100010' for instructing B-phase excitation. Thereafter, every time the originated binary digit string data is transmitted to switch the excitation phase, the control circuit repeats a process of shifting the transmitted binary digit string data by one binary digit to the left to originate binary digit string data for instructing the next excitation phase. The stepping motor is therefore excited in the order of A-phase → B- phase → C-phase → D-phase → A-phase → ...... and driven by a one-phase excitation system.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko ball dispensing apparatus in which a rotating body is rotated by a stepping motor to discharge pachinko balls.

[0002]

2. Description of the Related Art Conventionally, a stepping motor for driving a pachinko ball dispensing apparatus has been one-phase excitation, two-phase excitation, 1-2 phase excitation.
The coils of each phase are excited by any one of the phase excitation methods. For example, when a four-phase stepping motor is driven by a one-phase excitation method, as shown in FIG.
The excitation phase of the stepping motor is switched using a data table created for one-phase excitation. This data table is configured by arranging a number of rows of 8-bit bit string data. Each bit string data is
The fourth bit (lower 4 bits) is used as valid data, and the first to fourth bits respectively correspond to the A to D phases of the stepping motor, and the phase corresponding to the bit of “1” among them is It becomes the excitation phase. The bit string data of each row of the data table is shifted from the first row (offset value 0) by one row (each time the offset value is increased by 1), A phase → B phase → C phase → D phase → A phase → Are indicated in the order of...

[0003] This data table is stored in the R of the payout control circuit.
When the stepping motor is driven and stored in a memory such as an OM, the payout control circuit reads the bit string data of the data table from the memory while moving down one row at a time, and transmits the bit string data to the drive circuit. However, by switching the excitation phase of the stepping motor according to the received bit string data, the stepping motor is driven by a one-phase excitation method.

When a stepping motor is driven by a two-phase excitation method, a data table prepared for two-phase excitation is used. A data table created for phase excitation is used.

[0005]

However, in the above-mentioned conventional method, since a data table (a large number of bit string data) needs to be stored in a memory, a large memory area is consumed correspondingly. Since the capacity of the memory of the pachinko machine is limited, if many memory areas are used for drive control of the stepping motor, the memory area for other controls is reduced. In addition, when changing the excitation method, it is necessary to rewrite all the bit string data in the data table, which is very troublesome. Also, during driving of the stepping motor, every time the excitation phase is switched, it is necessary to search and read out the next bit string data from a large number of bit string data in the data table stored in the memory every time, which reduces the processing speed. May cause a decrease.

The present invention has been made in view of such circumstances. Therefore, the object of the present invention is to eliminate the need for a data table of the excitation phase, save the memory, and easily change the excitation method. It is another object of the present invention to provide a pachinko ball dispensing apparatus which can perform a motor drive control at a high speed.

[0007]

In order to achieve the above object, a pachinko ball dispensing apparatus according to claim 1 of the present invention comprises: storage means for storing bit string data indicating an excitation phase of a stepping motor; Control means for switching the excitation phase of the stepping motor based on the one-phase excitation method or the two-phase excitation method based on the control signal. The bit string data is shifted each time the excitation phase is switched by the control means, thereby instructing the next excitation phase. This is to create bit string data. That is, if the bit string data is shifted each time the excitation phase is switched, the one-phase or two-phase excitation phase indicated by the bit string data can be shifted in order, and the stepping motor can be used without using a data table. It can be driven by a one-phase excitation method or a two-phase excitation method.

In this case, the storage means only needs to store the initial value of the bit string data.
Memory consumption can be reduced. Moreover, when the excitation method is changed, the initial value of one bit string data is changed from one-phase excitation to two-phase excitation (or one-phase excitation to one-phase excitation).
(For phase excitation), and the excitation method can be very easily changed between one-phase excitation and two-phase excitation. Also, if the initial value of the bit string data of one row is read from the storage means when the stepping motor is started, it is not necessary to search and read the bit string data from the storage means thereafter. The processing speed can be increased as compared with the conventional method of searching for and reading out the next bit string data from among the bit string data.

As will be described in detail in an embodiment of the invention described later, data obtained by shifting bit string data for instructing one-phase excitation and data before the shift are logically ORed (OR).
When the calculation is performed, it becomes bit string data indicating two-phase excitation. Also, the logical product (AN) of the data obtained by shifting the bit string data instructing the two-phase excitation and the data before the shift
D) When calculated, it becomes bit string data indicating one-phase excitation.

Focusing on this point, when the excitation phase of the stepping motor is switched by the 1-2-phase excitation method as in claim 2, the data obtained by shifting the bit string data every time the excitation phase is switched to one-phase excitation. By performing a logical sum operation on the data before the shift, bit sequence data for instructing the next two-phase excitation is created, and every time the mode is switched to the two-phase excitation, the data obtained by shifting the bit sequence data and the data before the shift are logically calculated. By doing so, it is preferable to create bit string data indicating the next one-phase excitation. With this configuration, every time the excitation phase is switched, the bit string data for instructing one-phase excitation and the bit string data for instructing two-phase excitation can be created alternately based on the data before and after the shift. Without using a stepping motor
It can be driven by a two-phase excitation method. Again,
Since only the initial value of the bit string data needs to be stored, memory consumption can be reduced.

By the way, if the phase finally excited when the stepping motor is stopped is different each time, when the stepping motor is started, the phase for starting the excitation is also different every time. It is necessary to take into account whether to start
Control becomes complicated.

Therefore, the phase to be finally excited when the stepping motor is stopped is fixed, and when the stepping motor is started, the excitation is started from a specific phase based on the initial value of the bit string data. It is good to do. In this way, when the stepping motor is started, the excitation can always be started from the phase indicated by the initial value of the bit string data, and the control can be simplified.

[0013]

[Embodiment (1)] An embodiment (1) of the present invention will be described below with reference to FIGS.
First, a schematic configuration of a pachinko ball payout device will be described with reference to FIG. The pachinko ball dispensing device is configured to discharge pachinko balls supplied from a ball tank (not shown) by, for example, rotating a sprocket 12 (rotary body) with a four-phase stepping motor 11. In this case, each time the stepping motor 11 rotates eight steps, one pachinko ball is paid out.

Drive circuit 13 for stepping motor 11
Is controlled by the payout control circuit 14 (control means). The payout control circuit 14 is mainly composed of a microcomputer, and has a built-in ROM 15 (storage means).
4 is transmitted to the drive circuit 13 by transmitting 8-bit bit string data (see FIG. 2) indicating the excitation phase of the stepping motor 11. The drive circuit 13 switches the four-phase (A to D) excitation phases of the stepping motor 11 according to the received bit string data in a one-phase excitation mode. At this time, the payout control circuit 14
Each time the bit string data is transmitted, the bit string data is shifted one bit to the left to create bit string data indicating the next excitation phase.

As shown in FIG. 2, the bit string data is 8 bits.
The first to fourth bits (lower 4 bits) of the bits are used as valid data, and the first to fourth bits respectively correspond to the A to D phases of the stepping motor, and become “1” among them. The phase corresponding to the present bit is the excitation phase. Then, the payout control circuit 14 sequentially creates bit string data for exciting the stepping motor 11 by the one-phase excitation method as follows.

First, RO is set as an initial value of bit string data.
Basic data “0001000” stored in M15
1 ”is read. This basic data "0001000
"1" indicates A-phase excitation. After transmitting the bit string data, the basic data “00010001” is shifted left by 1
The data is shifted by a bit (however, the data of the eighth bit is moved to the first bit). Thereby, bit string data “00100010” for instructing the B-phase excitation is created. Hereinafter, every time the created bit string data is transmitted, the same procedure is repeated, and the bit string data “01000100” indicating the C-phase excitation, the bit string data “10001000” indicating the D-phase excitation, and the bit string data indicating the A-phase excitation By generating in the order of “00010001”,..., The excitation phase indicated by the bit string data is switched in the order of A phase → B phase → C phase → D phase → A phase →.

Here, when the four-phase (A to D) stepping motor 11 is driven by the one-phase excitation method, the excitation phase makes one cycle in four steps. As described above, the stepping motor 11 pays out one pachinko ball every eight rotations. Therefore, the stop position of the stepping motor 11 is always fixed to the D phase regardless of the number of pachinko balls to be paid out, and the next time the stepping motor 11 is started, the phase for starting excitation is always fixed to the A phase. Therefore, the payout control circuit 14 always starts the excitation from the phase A based on the basic data and starts the stepping motor 11 when paying out the pachinko ball.

Hereinafter, the specific contents of the motor drive control program of FIG. 4 executed by the payout control circuit 14 will be described. This program is started when the stepping motor 11 is started (when the payout operation is started). When the program is started, first, in step 101, basic data is read from the ROM 15. The basic data is bit string data indicating A-phase excitation. Next, the process proceeds to step 102, where the basic data is transmitted to the drive circuit 13 as the first bit string data. As a result, A
The excitation is started from the phase, and the dispensing operation is started. After this,
In step 103, the transmitted bit string data is shifted one bit to the left to create bit string data indicating the next excitation phase, and this is stored in a RAM (not shown).

Thereafter, the routine proceeds to step 104, where it is determined whether or not the payout operation is to be completed based on whether or not the excitation of the number of steps (N × 8) corresponding to the required payout number N has been completed.
If it is determined that the payout has not been completed, the processing of the above steps 102 and 103 is repeated, the bit string data stored in the RAM is transmitted, and the excitation phase is switched to the next phase. Shift to the left by one bit to create bit string data indicating the next excitation phase,
Update the data stored in the RAM. Such processing is performed for a predetermined time (for example, 1 to several ms) until it is determined that the payout is completed.
Repeat every ec). Thus, when the excitation of the number of steps (N × 8) corresponding to the required number of payouts N is completed, it is determined that the payout is completed, and the present program is ended.

Some pachinko ball dispensing apparatuses drive the stepping motor 11 by a two-phase excitation method. In such a case, as shown in FIG. 3, if the basic data "00110011" for instructing the excitation of two phases (for example, the A phase and the B phase) at the same time is stored in the ROM 15 as the initial value of the bit string data, By repeating the left shift based on the basic data, the two excitation phases indicated by the bit string data are changed from A phase B phase → B phase C phase → C phase D phase → D phase
It can be switched in the order of phase A phase → A phase B phase →... Therefore, in this embodiment (1), if the basic data for one-phase excitation “00010001” is rewritten to the basic data for two-phase excitation “00110011” and the motor drive control program of FIG. The stepping motor 11 can be driven in a system.

According to the embodiment (1) described above, every time bit string data is transmitted and the excitation phase is switched, the bit string data is shifted left by one bit at a time to generate the next bit string data. As a result, the excitation phase (one phase or two phases) indicated by the bit string data can be changed in order, and the stepping motor is driven by the one-phase excitation method or the two-phase excitation method without using a conventional data table. can do. In this case, the ROM 15
Need only store one basic data (initial value of bit string data), so that the consumption of the memory area of the ROM 15 is significantly reduced as compared with the conventional method of storing a data table (a large number of bit string data). Therefore, a sufficient memory area of the ROM 15 for other control can be left.

In addition, when the excitation method is changed, the excitation method is changed in a very simple manner of rewriting the basic data from one-phase excitation to two-phase excitation (or from two-phase excitation to one-phase excitation). It can be changed between one-phase excitation and two-phase excitation. Also, if the initial value of one bit string data is read from the ROM 15 when the stepping motor 11 is started, then there is no need to search and read the bit string data from the ROM 15 and therefore, every time the excitation phase is switched as in the conventional case, every time. In addition, there is no need to search for and read out the next bit string data from a large number of bit string data in the data table stored in the ROM 15, and the processing speed of motor drive control can be increased.

In the above embodiment (1), one pachinko ball is paid out every eight steps which is twice the number of motor phases (4).
The stop phase of the stepping motor 11 can be fixed to the D phase, and the excitation start phase at the time of starting the stepping motor 11 can be fixed to a specific phase (A phase). Therefore, when paying out a pachinko ball, excitation can always be started from a specific phase (A phase) specified by the basic data, and drive control of the stepping motor 11 can be easily performed.

However, it is not always necessary to set the excitation start phase of the stepping motor 11 to a specific phase. If the stop phase of the stepping motor 11 is different from the D phase, the stop phase is stored and then the stepping motor is stored. Motor 1
When starting 1, the process of shifting the basic data (bit string data) according to the stop phase may be repeated to create the bit string data at the time of starting, and start the excitation.

[Embodiment (2)] Next, an embodiment (2) of the present invention will be described with reference to FIGS. In the above embodiment (1), the stepping motor 11 is driven by the one-phase or two-phase excitation method. However, in the present embodiment (2), the program of FIG. The stepping motor 11 is driven in a system. The 1-2-phase excitation method is a method in which one-phase excitation and two-phase excitation are alternately repeated.

At this time, the payout control circuit 14 sequentially creates bit string data for exciting the stepping motor 11 by the 1-2-phase excitation method as follows. As shown in FIG. 5, first, basic data “000” indicating A-phase excitation is given.
10001 ”is read from the ROM 15, and the bit string data“ 00100010 ”obtained by shifting the basic data“ 00010001 ”by one bit to the left and the bit string data“ 00010001 ”before the shift are subjected to a logical sum (OR) operation. Bit string data “00110011” for instructing two-phase excitation of a phase and a B-phase is created.

After transmitting the bit string data, the bit string data "0011" instructing the two-phase excitation of the A phase and the B phase.
By performing a logical AND operation on the bit string data “01100110” obtained by shifting “0011” by one bit to the left and the bit string data “00110011” before the shift, bit string data “00” indicating B-phase excitation is obtained.
100010 ".

Thereafter, every time the bit string data is transmitted, the same procedure is performed, that is, the data obtained by shifting the bit string data indicating the one-phase excitation and the data before the shift are subjected to a logical OR operation to indicate the two-phase excitation. A process of creating data, performing a logical AND operation on the data obtained by shifting the bit string data indicating two-phase excitation and the data before the shift to create bit string data indicating one-phase excitation is repeated, Bit string data "0110" instructing two-phase excitation
0110 ”, bit string data“ 0 ”indicating C-phase excitation
While the bit string data for instructing one-phase excitation and the bit string data for instructing two-phase excitation are alternately created as in "1000100",..., The excitation phase designated by the bit string data is sequentially switched (A phase → A). Phase B → B phase → B
Phase C phase → C phase → C phase D phase → D phase → D phase A phase → A phase → ...
…).

Hereinafter, the specific contents of the motor drive control program of FIG. 6 executed by the payout control circuit 14 will be described. This program is started when the stepping motor 11 is started (when the payout operation is started). When this program is started, first, basic data is read from the ROM 15, and this basic data is transmitted to the drive circuit 13 as first bit string data (steps 201 and 202).
Excitation is started from the A phase by 3 to start the payout operation.

Thereafter, the process proceeds to step 203, in which the transmitted bit string data is shifted by one bit to the left, and in the next step 204, it is determined whether or not the bit string data before and after the shift is the bit string data indicating one-phase excitation. judge.
If it is determined that the bit string data before and after the shift is bit string data indicating one-phase excitation, step 20
5, the bit string data before and after the shift is ORed to create bit string data indicating the next two-phase excitation,
This is stored in the RAM.

On the other hand, if it is determined in step 204 that the bit string data before and after the shift is bit string data indicating two-phase excitation, the process proceeds to step 206,
A logical AND operation is performed on the bit string data before and after the shift to obtain the next 1
Create bit string data for instructing phase excitation,
Store it in M.

That is, in steps 204 to 206, when the bit string data transmitted this time is bit string data indicating one-phase excitation, bit string data indicating two-phase excitation is created, and the bit string data transmitted this time performs two-phase excitation. When the bit string data is instructed, bit string data for instructing one-phase excitation is created.

After the bit string data is created (step 205 or 206), the process proceeds to step 207, where it is determined whether or not the payout operation is to be terminated by the number of steps (N × 1) according to the required payout number N.
The determination is made based on whether or not the excitation of 6) is completed. If it is determined that the payout has not been completed, the above step 2
02, after transmitting the bit string data stored in the RAM and switching the excitation phase of the stepping motor 11,
The process of creating the next bit string data and updating the data stored in the RAM is repeated every predetermined time (for example, 1 to several msec) until it is determined that the payout is completed (step 2).
02-207). Thus, when the excitation of the number of steps (N × 16) according to the required number of payouts N is completed, it is determined that the payout is completed, and the present program is ended.

According to the above, the bit string data for instructing the one-phase excitation and the 2
Bit string data for instructing phase excitation can be alternately created and transmitted, and the stepping motor 11 can be driven by a 1-2 phase excitation method. Again, the ROM
15 only needs to store one bit string data as basic data, and the consumption of the memory area of the ROM 15 can be greatly reduced.

In the embodiment (2), the basic data is set to bit string data for instructing one-phase excitation, and the excitation is started from the one-phase excitation.
Excitation may be started from two-phase excitation using bit string data for instructing phase excitation.

Each of the embodiments (1) and (2) described above.
In the above, the bit string data is shifted to the left, but each bit of the bit string data and A
In the case where the correspondence with the .about.D phase is reversed, or when the stepping motor 11 is excited to rotate in the reverse direction, the bit string data may be shifted to the right.

When shifting the bit string data, the bit string data may be set in a shift register, and the bit string data may be shifted left or right by one bit from the shift register to output the bit string data.

In addition, although the present invention uses a sprocket type rotating body, it goes without saying that various modifications can be made without departing from the gist of the invention, for example, a lead screw type rotating body may be used. No.

[0039]

As is apparent from the above description, according to the pachinko ball dispensing apparatus of the first aspect of the present invention, the bit sequence data is shifted each time the excitation phase is switched, thereby indicating the next excitation phase. Since the bit string data is created, the stepping motor can be driven by the one-phase excitation method or the two-phase excitation method without using a data table, and the consumption of the memory can be extremely reduced. Can be easily changed. Further, it is not necessary to perform a process of searching for and reading out the next bit string data from a large number of bit string data in the data table as in the related art, and the processing speed of the motor drive control can be increased.

According to the present invention, the OR operation of the bit string data before and after the shift and the AND operation of the bit string data before and after the shift are alternately repeated, so that the bit string data indicating the one-phase excitation and the two-phase excitation are indicated. Bit string data can be generated alternately, and the stepping motor can be driven by the 1-2 phase excitation method without using a data table.

Furthermore, the stop phase of the stepping motor is fixed, and when the stepping motor is started, the excitation is started from a specific phase based on the initial value of the bit string data. When starting, the control considering which phase starts the excitation is not necessary, and the control can be simplified accordingly.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a control system of a pachinko ball dispensing device according to an embodiment (1) of the present invention.

FIG. 2 is a diagram for explaining a method of generating bit string data of a one-phase excitation method;

FIG. 3 is a diagram for explaining a method of creating bit string data of a two-phase excitation method;

FIG. 4 is a flowchart showing a processing flow of a motor drive control program according to the embodiment (1).

FIG. 5 is a diagram for explaining a method of generating bit string data of the 1-2-phase excitation method according to the embodiment (2) of the present invention.

FIG. 6 is a flowchart showing a processing flow of a motor drive control program according to the embodiment (2).

FIG. 7 is a diagram showing a data table used for conventional stepping motor drive control.

[Explanation of symbols]

11 stepping motor, 12 sprocket (rotating body), 13 drive circuit, 14 payout control circuit (control means), 15 ROM (storage means).

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kenji Yamamoto 13-13 Higashi-Osone-cho, Higashi-ku, Nagoya City F-term (reference) 2C088 BA37

Claims (3)

[Claims] 1. A pachinko ball payout device in which a rotating body is rotated by a stepping motor to pay out a pachinko ball, wherein: a storage means for storing bit string data indicating an excitation phase of the stepping motor; Control means for switching the excitation phase of the stepping motor based on a one-phase excitation method or a two-phase excitation method based on the following excitation phase by shifting the bit string data every time the excitation phase is switched. A pachinko ball dispensing device, which generates bit string data indicating the following. 2. A pachinko ball dispensing device in which a rotating body is rotated by a stepping motor to pay out a pachinko ball, wherein: a storage means for storing bit string data indicating an excitation phase of the stepping motor; The excitation phase of the stepping motor is alternately switched between one-phase excitation and two-phase excitation based on
Control means for switching by a two-phase excitation method, wherein the control means performs a logical OR operation on the data obtained by shifting the bit string data and the data before the shift every time the control is switched to the one-phase excitation, so that A bit string instructing the next one-phase excitation is generated by creating bit string data indicating phase excitation and performing an AND operation on the data obtained by shifting the bit string data and the data before the shift each time the mode is switched to two-phase excitation. A pachinko ball dispensing device that creates data. 3. The control means fixes a phase to be finally excited when the stepping motor is stopped, and when starting the stepping motor, starts exciting from a specific phase based on an initial value of the bit string data. The pachinko ball dispensing device according to claim 1, wherein the device is started.