KR19990038936A - Control method of automatic cutting machine of cash register - Google Patents

Abstract

The automatic cutting machine driving control method of the cash register according to the present invention is applied to the motor when the initial driving signal of the blade driving motor of the automatic cutting machine is applied, and during the blade driving, foreign matters are caught in the mechanical configuration, or paper jams occur. It is judged to stop the driving of the motor.

Therefore, the automatic cutting machine driving control method of the cash register according to the present invention prevents the parts of the motor and the motor driving circuit part of the automatic cutting machine from being damaged due to the paper jam and the mechanical driving part problem inside the automatic cutting machine. It is possible to obtain the effect of extending the life of the product.

Description

Control method of automatic cutting machine of cash register

The present invention relates to an automatic cutting machine driving control method of a cash register, and more particularly, to a driving motor for driving a cutting blade for cutting receipts according to merchandise sales from money overload caused by a paper jam. The present invention relates to a driving control method of an automatic cutter of a register.

In general, a cash register refers to a device used to facilitate information management by processing various data associated with the sale of a product and informing a user of a result. The scope varies from point of sales system to comprehensive management of distribution economy such as research. Hereinafter, in the present specification, the term ECR (Electronic Cash Register), which means an electronic cash register controlled by a microprocessor, is used as a broad concept including low-level cash registers to POS terminals.

On the other hand, the ECR automatically cuts before issuing a receipt printer and a printed receipt so that various details, such as price, quantity, total amount, payment amount and balance, are issued on the receipt when the product is sold. It is equipped with an automatic cutting machine.

The automatic cutting machine consists of a blade for cutting a receipt and a driving motor for moving the blade. After the printing of sales data on the receipt, the blade of the automatic cutting machine is driven so that a paper jam occurs at the moment of cutting the receipt. When foreign matter is stuck inside the cutter, and the blade driving motor inside the automatic cutter is not driven smoothly, the motor is continuously overloaded, resulting in a defect in the motor and the motor driving circuit components.

Therefore, the present invention has been made in order to solve this problem, the object is to automatically stop the motor drive if it is not detected that the motor drive is stopped for a predetermined time after the drive of the blade drive motor of the automatic cutter An object of the present invention is to provide an automatic cutting machine driving control method of a cash register which can protect a motor and a motor driving circuit caused by an overload.

In order to achieve this purpose, the automatic cutting machine driving control method of a cash register according to the present invention moves a blade by driving a motor and cuts a receipt printed on the transaction details of a transaction from a bundle of receipts. In the automatic cutter driving control method of the cash register for controlling the operation of the motor based on the detection result of the position detecting switch having a position detecting switch for detecting the position of the position, the automatic detection of the position detecting switch when the drive of the motor is started Determining whether the blade is moved by receiving a signal; Counting the driving time of the blade when it is determined that the blade is driven; Comparing the drive time of the counted blade with a second preset reference time to determine whether the motor is overloaded; And comparing the blade driving time with the second reference time or more to determine that an overload has occurred and stopping the driving of the motor.

In addition, the automatic cutter drive control method of the cash register according to the present invention comprises the steps of counting the time from the point of time the drive signal of the automatic cutter motor is output to the point of time when the movement of the blade by the position detection switch is detected; Comparing the counted motor driving delay time with a first preset reference time; When the motor driving delay time is greater than or equal to the first reference time as a result of the comparison, the method may further include displaying an error occurrence after stopping the driving of the motor.

1 is a system block diagram showing the configuration of a cash register to which the present invention is applicable;

2 is a flowchart showing a method for controlling an automatic cutter operation of a cash register according to the present invention;

3 is a driving timing chart of the automatic cutter according to the present invention.

*** Explanation of symbols for main parts of drawing ***

10: central processing unit, 20: key input unit,

30: real time clock section, 40: ROM,

50: ram, 60: printer,

70: display 80: motor drive unit,

81: motor, 90: position detection switch.

Hereinafter will be described in detail with reference to the accompanying drawings the configuration and operation effects of the automatic cutting machine driving control method of the cash register according to an embodiment of the present invention.

First, FIG. 1 is a system block diagram showing a configuration of an ECR to which the present invention is applicable. As shown in FIG. 1, the ECR system to which the present invention is applicable can be keyed to the key input unit 20 and the key input unit 20 to generate various key codes for mode designation and money registration. ROM that stores the system operation program, the real time clock unit 30 for providing real time information to the central processing unit 10, which designates the ECR mode and performs various functions in the designated mode. 40, a RAM 50 for storing various data generated during a program or a transaction set by the user, a printer 60 for issuing documents for customer receipts and various processing results under the control of the central processing unit 10, a central A display unit 70 for displaying various information related to a transaction under the control of the processing unit 10, an auto cutter driving motor 81, and a motor 81 for automatically cutting a receipt which has been issued under the control of the central processing unit 10. Of) The motor driving unit 80 for controlling the driving and the position detecting switch 90 for detecting the moving position of the blade mechanically coupled in accordance with the drive of the motor (81).

At this time, the motor driving unit 80 is driven by the transistor Q1 and Q2 which are turned on / off under the control of the central processing unit 10 and the transistor Q1 and Q2 are turned on and off. It consists of a motor 81 driven by receiving power.

On the other hand, the position detection switch 90 is turned on / off in accordance with the movement of the blade according to the drive of the drive motor 81, in series with the resistor (R3) to input a signal relating to the position of the blade to the central processing unit 10. Is connected to the power supply. In addition, the central processing unit 10 receives the detection signal of the position detection switch 90 to determine the position of the automatic cutter blade to control the driving of the motor 81.

That is, the position detection switch 90 is turned on / off in accordance with the movement of the blade due to the motor drive to input a signal of a predetermined level according to the blade position to the central processing unit 10. As an example, when the motor is driven to move the blade from its original initial position, the position detection switch 90 is turned off, and accordingly, a signal having a 'HIGH' level is input to the central processing unit 10. In addition, when the blade is completely cut off the receipt due to the motor drive and the return to the initial position, the position detection switch 90 is turned on, so that the signal of the 'low' level is input to the central processing unit 10.

2 is a flowchart illustrating a method for controlling an automatic cutter of a cash register according to the present invention, and FIG. 3 illustrates a driving timing chart of the automatic cutter applied to the present invention.

As shown in Figure 2, the automatic cutting machine driving control method of the cash register according to the present invention, first, if the product is sold in the state that the power is applied in step (S10) various details, that is, price, quantity, The printer 60 is driven to print information such as total amount, payment amount and balance on the receipt.

When the printing of the product sales details on the receipt is completed in step S10, in step S12, the blade driving motor 81 of the automatic cutter is cut to cut the receipt from the bundle of receipts. At this time, in step S14, it is determined whether the blade is driven based on the detection signal input from the position detection switch 90 to determine the moving position of the blade according to the driving of the motor. That is, if it is determined in step S16 that the signal level Ra input from the position detection switch 90 is 'low', step S18 or less is performed and the signal level Ra is input from the position detection switch 90. If it is determined that the signal level is 'high' (step S24) or less.

As a result of the determination in step S16, if the signal level input from the position detecting switch 90 is 'high', as shown in FIG. 3, in step S24, the automatic cutting machine motor 81 of the automatic cutter motor 81 is removed from the central processing unit 10. The signal delay time T1 is counted from the time point at which the drive signal is output until the position detection switch 90 according to the motor drive is turned on. In step S26, the signal delay time T1 is compared with 10 ms as a preset first reference time example. When the signal delay time T1 is 10 ms or less as a result of the comparison in the step S26, it is determined that the blade is not driven at the same time as the motor drive signal is output by the time delay required for the signal transmission, and the step S14. Repeat as follows.

On the other hand, if the signal delay time (T1) of the comparison result of the step (S26) is 10㎳ or more, the blade to cut the receipt even if the motor was driven by a foreign matter stuck to the mechanical drive inside the automatic cutter or a paper jam, etc. After determining that it has not been driven, the process proceeds to step S28 to stop driving of the motor, and then, in step S30, an error occurrence is displayed through the display 70 or a buzzer so that an external user can recognize the error occurrence situation. Done.

In addition, when it is determined in step S16 that the blade is driven after the motor starts to be driven and the level of the signal input from the position detecting switch 90 is low, the motor driving time T2 is determined in step S18. In step S20, the detection signal level of the position detection switch 90 is determined in order to determine that cutting of the receipt is completed.

If the signal level input from the position detection switch 90 is high as a result of the determination in step S20, the motor 81 and the blade are normally driven, and it is determined that cutting of the receipt on which the sales history data is printed is completed, and step S22. Stops the motor drive and completes receipt receipt.

On the other hand, if the signal level input from the position detection switch 90 is low as a result of the determination in step S20, the process proceeds to step S32 to generate the motor driving time T2 counted in the step S18 during blade driving. In order to determine the occurrence of the overload according to the jammed phenomenon, it is compared with 100 ms as an example of the preset second reference time. As a result of comparison, when the motor driving time T2 is 100 ms or less, it is determined that the motor 81 and the blade for cutting the receipt are normally driven, and the step 81 is repeated to repeat the step S12 until the cutting of the receipt is completed. Drive.

As a result of the comparison of the step S32, when the motor driving time T2 is 100 ms or more, the motor is started and the motor is driven longer than the average time for cutting the receipt and returning the blade to the initial position of the drive. It is determined that the motor 81 is stopped in the next step S34, so that the motor can be protected from an overload caused by a paper jam and foreign matter being stuck inside the mechanical drive unit while the blade is being driven. In addition, in step S36, an error occurrence is displayed through the display 70 or a buzzer so that an external user can recognize an error caused by an overload caused by a paper jam.

The term 'step' used in the detailed description of the present invention reveals that the term 'step' may not be semantically consistent with the term 'step' used in the claims.

The automatic cutting machine driving control method of the cash register of the present invention is not limited to the above-described embodiment and can be modified in various ways within the scope of the technical idea.

As described above, the automatic cutting machine driving control method of the cash register according to the present invention causes foreign matter to be caught in the mechanical configuration or paper jams during the application of the initial driving signal of the blade driving motor of the automatic cutting machine. It is determined that an overload is applied to the motor to stop the driving of the motor.

Therefore, the automatic cutting machine driving control method of the cash register according to the present invention prevents the parts of the motor and the motor driving circuit part of the automatic cutting machine from being damaged due to the paper jam and the mechanical driving part problem inside the automatic cutting machine. It is possible to obtain the effect of extending the life of the product.

Claims (2)

It is equipped with an automatic cutter that cuts receipts printed on money transactions from the bundle of receipts by moving the blade by driving the motor, and a position detecting switch that detects the position of the blade according to the driving of the motor. In the automatic cutter drive control method of the cash register for controlling the operation of the motor, Determining whether the blade is moved by receiving the detection signal of the position detecting switch when driving of the automatic cutter motor is started; Counting the driving time of the blade when it is determined that the blade is driven; Comparing the drive time of the counted blade with a second preset reference time to determine whether the motor is overloaded; And determining that an overload has occurred if the blade driving time is greater than or equal to the second reference time, and stopping the driving of the motor. The method of claim 1, further comprising: counting a time from the time point at which the drive signal of the auto cutter motor is output to the time point at which the movement of the blade is detected by the position detection switch; Comparing the counted motor driving delay time with a first preset reference time; And if the motor driving delay time is equal to or greater than the first preset reference time, stopping the driving of the motor and displaying an error occurrence.