JPS60122425A - Magnetic card recording and reproducing device with punch mechanism - Google Patents

Abstract

PURPOSE:To make the positioning of a card accurately highly by driving a motor in a low speed near the card position. CONSTITUTION:A position detector 10 detects a position of a card to be transmitted, gives a detection signal to a CPU11, which starts the count of a clock 20 from an FG17. Then a high speed command 12 is outputted by a command of a moving amount, a drive section 15 drives a motor 16 in high speed. When the count value of the clock reaches a set value, the CPU11 transmits a low speed command 13 during this time. Thus, the motor 16 is driven in a low speed. When the clock 20 reaches the moving amount, the CPU 11 gives a motor stop command so as to stop the motor 16, and after a prescribed time, a punch command is given to a punch mechanism drive section 18 and the card is punched.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic card recording and reproducing device used for reading and writing data on credit cards, cash cards, identification cards, and the like.

The structure of a conventional example and its problems 21-A conventional example of a control section of this type of magnetic card recording/reproducing apparatus is shown in FIG. This method is feedback control of the motor rotation speed, and the CPU 4 counts a clock 3 according to the motor rotation speed generated from the output of a frequency tacho generator (FG) 2 connected to the motor 1, thereby performing positioning run-up and clocking. Positioning braking is controlled by monitoring during the cycle. After the card position detector 6 detects the card, the CPU 4 performs positioning run-up by counting the output clock 3 of the FG 2 until a certain number of pulses is reached, and immediately sends a braking signal to the motor drive section 6 when the certain number of pulses is reached. The clock cycle increases as the motor decelerates. This cycle is monitored and the brake signal 8 is stopped when the set value T reaches 7i. This causes the motor to stop after a slight forward rotation due to inertia before reversing. T to determine braking time 'rR96.

7 is set depending on the inertia of the motor and conveyance system.

The positioning accuracy of the magnetic card with the above conventional configuration is usually about 1 to 2/1 m with respect to the set value, and I IN
It has the disadvantage that it cannot be applied to applications that require high precision within 3 pages.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a magnetic card recording/reproducing device which takes into consideration the above-mentioned conventional problems and can improve positioning accuracy.

Structure of the Invention The present invention runs at high speed until the start signal from the card position detector reaches a certain number of pulses, moves at low speed when it approaches the positioning position, and then moves at a low speed until the end of the clock from F(lr). It is configured to issue a command to stop the motor when it reaches the positioning position while counting, and to control the stop due to inertia within one pulse of the clock, making it possible to position the magnetic card with extremely high precision. It is possible.

Description of examples FIG. 3 shows the main structure of an embodiment of the present invention.

FIG. 4 is an explanatory diagram of the operation of the main parts.

A card position detection circuit 10 detects the position where the magnetic card is sent, and the signal thereof is given to the CPU 11. Then, the CPU 11 receives the clock 2Of generated from FGl 7.
Start counting. When a certain amount of movement is commanded, first CP
A high speed command 12 is issued from U11, and the motor drive unit 16 drives the motor 16 at high speed. Meanwhile, the CPU 11 counts the number of clocks, and when the set value is reached, a low speed command 13 is issued, and then the low speed command 13 drives all motors. The motor 16 is operated at a very low speed. Meanwhile, the CPU 11 continues to count the clock 20'jz, and when the amount of movement is reached, the CPU 11
A motor stop command is issued from 11. Motor drive section 16
receives this command and stops the motor 16. After that, a certain time is detected by a timer in the 1cPU 11, and a punching command is given to the punching mechanism drive unit 18. This drives the solenoid and punches a hole in the card using the punch mechanism connected to it.In the configuration of the above embodiment, (1) the lower the low-speed feed speed is, the better the stopping accuracy is (2) per rotation of the FG sensor Increase the number of pulses 5
Page In particular, the feed amount per υ pulse can be reduced and the stopping accuracy can be improved.

(Stopping accuracy is improved by reducing the inertia of the mechanical system connected to the motor.)

(→ After a stop command is issued, if the inertia is large and the motor moves too far, the CPU 11 detects the excess and issues a reverse command to improve positioning accuracy.

In this way, positioning accuracy can be improved.

Effects of the Invention According to the present invention, when punching holes in a card, holes can be punched more accurately than before, and holes can be punched in a predetermined card.
It can contain more information and has great practical value.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a card positioning control section of a conventional magnetic card recording/reproducing device with a punching mechanism, and Fig. 2 is a diagram for explaining its operation. b) is a clock waveform diagram, (C) is a waveform diagram of a braking signal, FIG. 3 is a block 1AA page diagram of the card positioning control section and punching section according to an embodiment of the present invention, and FIG. 4 explains its operation. (a) is a temporal change diagram of the motor rotation speed, (b) is a clock waveform diagram, and (0) is a timing waveform diagram of the motor speed command. 1o...Card position detector, 11...
CPU. 12...High speed command, 13...Low speed command, 14...Motor stop command, 16...
Motor drive unit, 16...Motor (for card transport), 17...FG, 18...Punch mechanism drive unit, 19...Solenoid. Name of agent: Patent attorney Toshio Nakao and one other person (
Ji\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

Claims (1)

[Claims] Equipped with a mechanism for punching a hole in a predetermined position on the magnetic card, and equipped with a photo sensor for positioning the magnetic card and a pulse generator for detecting the amount of feed of the magnetic card. Equipped with a punch mechanism characterized by a motor drive unit that performs low-speed feed that can be stopped immediately, high-speed feed when recording and reproducing on a magnetic card, and short-circuits both ends of the motor to completely lock the motor when stopped. Magnetic card recording and reproducing device.