JPH04140251A - Paper sheet shifting device - Google Patents

Abstract

PURPOSE:To shorten the time until restarting and the time until determination of nonfulfillment error so as to reduce the possibility of exerting an unreasonable force to a mechanism section by measuring a valve of current fed to a d. c. motor for driving a unit shifting plate in a paper stacking section so as to know a stop of the mechanism section at once. CONSTITUTION:A current at the time when a unit shifting plate 4 is normally operated, becomes instantly high just after a start, but buries if the shifting plate 4 comes to a complete stop before it reaches its desired position, being caused by scuffing of the like in a mechanism section. Further, when a current variation given by the shifting plate is such that the operation of the mechanism section is not smooth, the current is continuously fed so that the shifting plate can come to the desired position. However, when a current higher than a reference level, which indicates that the mechanism section is completely stopped, an reasonable force is exerted to the mechanism section if the current is left to be fed thereto, and accordingly, control is made such that the feed of the current is soon stopped, then a restart is carried out and so forth.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper sheet transport device, and particularly to a paper sheet transport device that can detect abnormalities in the device itself.

[Prior Art] In the combination transfer mechanism of the sheet stacking section, the combination transfer plate 4 reciprocates between position 1 and position 2, as shown in FIG. 6, to combine the sheets. In this case, position detection sensors 9 and 10 are installed at positions 1 and 2, respectively. When the combined transfer plate 4 reaches position 1 and position 2, respectively, the sensors 9 and 10 detect this information, and the control unit controls the reciprocating movement of the combined plate to remove the paper sheets accumulated in the BiJ area. Combine class with area A.

In this reciprocating control of the combining plate, if it does not reach from position 1 to position 2 or from position 2 to position l within a certain period of time, the combining transfer plate is activated again and the transfer status is monitored. This restart operation of the combined transfer plate is performed multiple times if necessary, and if the target position is not reached even after restarting a certain number of times, it is treated as a non-execution error.

[Problem that the invention sought to solve]

In the conventional monitoring of the arrival of the combined transfer plate to the target position, the length of the monitoring time is determined by multiplying the arrival time after activation in the case of normal operation by a certain coefficient.

Therefore, for example, if the combined transfer plate stops between two positions due to an operational malfunction in the mechanism, it is necessary to wait until the monitoring time has elapsed, and it will not come to a complete stop due to galling of the mechanism, etc. Even in the event that the device is damaged, or even if the device moves slowly and takes time to arrive, the device will be monitored for a certain period of time and restarted a specified number of times.

For this reason, it takes a long time to reach the non-execution error, and even though the mechanism is stopped, the actuator for driving the combined transfer plate continues to be energized.
Unreasonable force will be applied to the mechanism. Reference numeral 50 indicates a DC motor that drives the combined transfer plate 4.

[Purpose of the invention]

The present invention improves the disadvantages of the conventional example, and in particular, provides a paper sheet transfer device that is capable of immediately detecting and displaying an inconvenience when an inconvenience occurs during the transfer of the combined transfer plate. was the purpose.

[Means to solve the problem]

In the present invention, a combination transfer plate that transfers a predetermined amount of paper sheets carried into and accumulated in a paper sheet R carry-in section to a paper sheet accumulation section, an actuator that reciprocates this combination transfer plate, and a combination transfer plate First and second position sensors detect the positions before and after the transfer, and the actuator is switched and started based on the signal from the first or second position sensor to move the combined transfer plate from one side to the other or from the other side to the other side. and a control unit that controls movement to. Then, the actuator is equipped with a current measuring section that detects the current flowing through the actuator, and a stop control that immediately operates to stop power supply to the actuator when the current measuring section detects a current value exceeding a certain value. The configuration is such that the control unit has the functions. This is an attempt to achieve the above-mentioned purpose.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

First, in the paper sheet R conveying device implementing the present invention, the paper sheets P are fed out from the feeding section 20 to the conveying path 30 and stacked on the stacking section 3, as shown in FIG.

FIG. 2 shows a specific example of the accumulation section 3.

The stacking section 3 shown in FIG. 2 is equipped with a paper sheet transfer device as an embodiment of the present invention.

That is, in this embodiment, a combination transfer plate 4 that transfers a predetermined amount of paper sheets carried into and accumulated in a paper sheet delivery section to a paper sheet accumulation section, and an actuator that moves this combination transfer plate 4 back and forth. 5, first and second position sensors 1 and 2 that detect the position before and after the transfer of the combined transfer plate 4, and the actuator 5 is switched based on the signal from the first or second position sensor 1.2. It is provided with a control unit 8 that starts and controls the movement of the combined transfer plate 4 from one side to the other side or from the other side to one side. The actuator 5 is equipped with a current measuring section 6 that detects the current flowing through the actuator 5 . Thereby, the magnitude of the current flowing through the actuator 5 is multiplied and measured. The above-mentioned control unit 8 performs a stop control function that immediately operates when the current measurement unit 6 detects a current value equal to or higher than a certain value and stops the current supply to the actuator 5.
is equipped.

Furthermore, a current comparator 7 is also provided at the output stage of the current measurement section 6 . . The current comparison section 7 determines whether the current measurement section 6 has detected a current value greater than a certain value and outputs the determination result to the control section 8 . Reference numeral 20 indicates a display section.

Further, the control unit 8 can know the positions of the combined transfer plates 402 by the position detection sensors 9 and 10 provided at positions 1 and 2. The other configurations are the same as the conventional example described above.

Here, when the combined transfer plate 4 operates normally, the current changes as shown in FIG. Immediately after startup, a large current flows instantaneously. When the combined transfer plate 4 is completely stopped due to galling of the mechanical part or the like before reaching the target position, the current changes as shown in FIG. 4.

In addition, when the movement of the mechanical part of the combined transfer plate 4 is slow, the current changes as shown in FIG. If such a current change occurs, the target position can be reached by continuing to flow the current. However, when a current higher than the reference level flows (FIG. 4), the mechanical section is completely stopped, so even if the current continues to flow, an unreasonable force will be applied to the mechanical section. Therefore, in such a case, controls such as stopping the current quickly and starting it again are performed.

[Effects of the Invention] As explained above, according to the present invention, the control unit can control the operating state of the mechanical unit by measuring the current value supplied to the DC motor for driving the combined transfer plate of the paper sheet stacking unit. Because it is possible to immediately know when a mechanical part has stopped, the time required to restart it is shortened, the time required to determine that a non-execution error has occurred, and the application of excessive force to the mechanical part is reduced. It is possible to provide an unprecedented and excellent paper sheet transport device that can perform the following functions.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing one embodiment of the present invention, Fig. 2 is a block diagram showing the overall configuration of the paper sheet conveying device including Fig. 1, and Figs. 3 to 5 are a combination of each. FIG. 6 is a diagram showing changes in the current flowing through the drive actuator for the transfer plate, and is an explanatory diagram showing a conventional example. 1...First position sensor, 2...
・Second position sensor, 3...Paper sheet accumulation block diagram, 4...Combined transfer plate, 5...
・Actuator, 6...Current measuring section, 8...
...control section. Applicant Kofu NEC Co., Ltd. Agent Patent Attorney Isamu Takahashi Figure 5 Figure 6

Claims (2)

[Claims] (1) a combination transfer plate that transfers a predetermined amount of paper sheets carried into and accumulated in a paper sheet delivery section to a paper sheet accumulation section; an actuator that moves this combination transfer plate back and forth; and the combination transfer plate. and a first and second position sensor that detects the position before and after the transfer, and the actuator is switched and started based on a signal from the first or second position sensor to move the combined transfer plate from one side to the other or In the paper sheet transfer device, the actuator is equipped with a current measuring section that detects a current flowing through the actuator, and the current measuring section detects a current exceeding a certain value. A paper sheet transfer device characterized in that the control section includes a stop control function that immediately operates when a value is detected to stop power supply to the actuator. (2) A current comparison section is provided at the output stage of the current measurement section, and the current comparison section determines whether or not the current measurement section has detected a current value greater than a certain value, and the determination result is transmitted to the control section. 2. The paper sheet transfer device according to claim 1, wherein the paper sheet transfer device outputs the paper sheet to