JPH07133091A - Transfer device - Google Patents

Abstract

PURPOSE:To realize electric power economization by turning-ON/OFF a controlled power source through remote operation, or manually or automatically. CONSTITUTION:An ovehead traveling truck 1 travels along a rail 30 installed on a ceiling. In other words, electric power is supplied to a control circuit from a battery installed on a traveling mechanism 10, and the control voltage is sent into a controller from the controlling power source part of the control circuit, and a motor is driven according to the instruction of the controller, and traveling is carried out. In the state where a power source switch 11a is turned ON, the electric power supply to the control circuit can be cut off or executed manuallay or automatically, by the means such as a remote controlled transmitter 50, selecting switch 53, controller, timer, and sensors.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport device, and is particularly effective when applied to a transport device which travels at a high position (ceiling etc.) away from the ground.

[0002]

2. Description of the Related Art There is an overhead traveling carriage 1 as shown in FIG. The overhead traveling carriage 1 includes a traveling mechanism 10 and a lifting mechanism 20. When a traveling motor (not shown) of the traveling mechanism 10 is driven, the vehicle travels along the rail 30 provided on the ceiling.
When a lifter motor (not shown) of the lifting mechanism 20 is driven, the lifter belt 21 is wound and unwound to transfer the transfer mechanism 2
2 moves up and down, and a motor (not shown) of the transfer mechanism 22 is driven to extend the locking portion 23 in the direction of arrow A.

The operation panel 11 includes a power switch 11
a, start switch 11b, stop switch 11c
And so on. Further, the overhead traveling carriage 1 includes a battery, a control power supply unit, a controller and the like.

FIG. 7 shows a conventional electric system of the overhead traveling carriage 1. In the figure, 40 is a battery, 41 is a noise filter, 42 is a control circuit section, 43 is a controller (CP
U, I / O, servo driver included), 44 is a main contactor, M is a motor (travel motor, lifter motor, etc.)
Is.

When the power switch 11a is turned on, a control voltage is applied from the control power source section 42a of the control circuit 42 to the controller 43 to activate the CPU, and then the main contactor 44 is turned on by a command from the control circuit 42. When the start switch 11b is turned on in this state, electric power is supplied to the motor M via the servo driver. In this state, for example, the forward / reverse rotation / stop / rotational speed control of the motor is performed according to the program of the CPU, and the overhead traveling carriage 1 operates according to the program. When the operation is stopped, the stop switch 11c is pressed to stop the power supply to the motor M, and then the power switch 11a.
Was opened and the control voltage was dropped. When the control voltage drops, the main contactor 44 automatically opens.

[0006]

In the above-mentioned prior art, the power switch 11 is used when the motor M is not driven.
If a is left on, the control circuit 42 consumes power and causes a voltage drop in the battery 40. In addition, the parts to which the power is supplied deteriorate faster.

Normally, the rail 30 is near the ceiling, and the overhead traveling carriage 1 is at a high position. The power switch 11a may be opened in order to eliminate the power consumption in the control circuit 42 when the motor M is not driven, but for this purpose, it is necessary to climb to the overhead traveling carriage 1 in the high position with a ladder or the like, which is dangerous. is there.

SUMMARY OF THE INVENTION In view of the above-mentioned prior art, it is an object of the present invention to provide a transfer device capable of cutting off the electric power sent to the control circuit remotely, manually or automatically when the motor is not driven, thereby saving electric power. .

[0009]

A first configuration of the present invention for solving the above-mentioned problems is to provide a battery, a control circuit for supplying a power from the battery to output a control voltage, and an operation when the control voltage is input. A controller that controls the motor drive in response to a command, a power switch that is interposed between the battery and the control circuit, and a motor that is driven and controlled by the controller to drive the carrier body to run along the rails. In the carrier device provided, a remote controller transmitter for outputting a control power source switching command is provided separately from the carrier device main body, and further, the controller has a function of outputting a sleep pulse when the motor drive control is completed, and the carrier device main body is controlled. A remote control receiver that outputs a receiver pulse each time it receives a power supply switching command, and an ON / OFF signal when turned on / off A change-over switch for outputting, a binary counter for changing an output signal state between a high level and a low level each time the receiver pulse, the ON / OFF signal, and the sleep pulse are input, a power switch and a control It is characterized in that it is provided with a relay circuit which has a contact interposed between the relay circuit and the circuit and opens and closes the contact according to the output signal state of the binary counter.

According to a second structure of the present invention for solving the above-mentioned problems, in the carrying apparatus of the first structure, the controller counts the time during which the motor is stopped and judges that the motor stop time has reached a predetermined time or more. If a sleep pulse is output or a command in the travel route data is executed, a sleep pulse is output, and the carrier device is equipped with a timer.In the latter case, this timer counts the time after the sleep pulse is output, and the predetermined time elapses. After that, the timer outputs a pulse to the binary counter to change the output signal state of the binary counter.

According to a third aspect of the present invention which solves the above-mentioned problems, a battery, a control circuit for supplying electric power from the battery to output a control voltage, and a motor drive in response to an operation command when the control voltage is input. A controller for controlling, a power switch interposed between the battery and the control circuit,
In a transport device equipped with a motor that drives the transport device main body to run along a rail by being driven and controlled by a controller, the operating time zone of the transport device is registered in advance, and a pulse is output according to this operating time period. A timer and the output signal state is changed between a high level and a low level each time a pulse is input from the timer 2
It is characterized in that it is provided with a binary counter and a relay circuit which has a contact interposed between a power switch and a control circuit and opens and closes the contact according to an output signal state of the binary counter.

A fourth structure of the present invention which solves the above-mentioned problems is to detect the approach or contact of another carrier device in the carrier device of the first, second or third structure and to binary the detection signal. It is characterized in that the carrying device main body is provided with a detecting means for outputting to a counter and changing the output signal state of the binary counter.

[0013]

According to the first aspect of the present invention, when the control power source switching command is output from the remote control transmitter, the changeover switch is turned on and off, or the operation is completed, the operation is completed between the battery and the control circuit. The intervening contact opens, saving power consumption in the control circuit.

Further, according to the present invention having the second configuration, in addition to the operation of the first configuration, the contacts are contacted when the motor is stopped for a certain period of time or when a command on the travel route data is executed. In the latter case, in the latter case, the contact is closed after a certain period of time, and the control circuit is automatically supplied with power.

According to the third aspect of the present invention, the power supply to the control circuit and the stop thereof are automatically performed in accordance with the operating time zone of the carrier.

Further, according to the present invention having the fourth structure, in addition to the operation of the first, second or third structure, the contact is closed by a detection signal and power is automatically supplied to the control circuit. To be done.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. In addition, the same reference numerals are given to the portions having the same functions as those of the conventional technique, and the duplicated description will be omitted.

As shown in FIG. 1, this embodiment is provided with a remote control transmitter 50 (which transmits radio waves or light) which outputs a control power source switching command when it is grasped and operated by a driver on the ground. The overhead traveling carriage 1 is provided with a remote control receiver 51 that receives a control power supply switching command.

FIG. 2 shows an electric system of the overhead traveling carriage 1 according to the embodiment. In the figure, 51 is a remote control receiver, 52
Is a binary counter, 53 is a changeover switch, 54 is a delay circuit, 55 is an inverter, 56 is a transistor, 57 is a timer, 58 is a sensor, R is an electromagnetic relay coil, and r is its contact point. The contact point r is connected between the power switch 11 a and the control circuit 42.

The remote control receiver 51 is the remote control transmitter 5
Outputs a receiver pulse Pr every time it receives a switching command from 0
It In the binary counter 52, a pulse P is applied to the clock terminal CK.
Each time r is input, the level of the output terminal Q is high (H)
And low (L) alternate. The changeover switch 53 is
Momentary switch that closes contacts only while the switch is pressed
The ON / OFF signal of the changeover switch 53 is binary.
Output terminal when input to the clock terminal CK of the counter 52
The level of child Q changes. The delay circuit 54 has a voltage V _DDDelay
Let the voltage V_DD′ Is output, and the inverter 55 outputs the voltage
V_DD'Is inverted to set terminal SET of binary counter 52
To enter.

The controller 43 outputs a sloop pulse P _S1 at the end of the operation. Further, when the motors of the traveling mechanism 10, the elevating mechanism 20 and the transfer mechanism 22 are all stopped, the controller 43 counts the time thereafter and determines that the stopped state continues for a predetermined time or longer. The sleep pulse P _S1 is output. A command for outputting the sleep pulse P _S2 is set in advance in the travel route data read in the travel program of the controller 43, and the controller 43 outputs the sleep pulse P _S2 by this command.

The timer 57 counts the time after the sleep pulse P _S2 is output from the controller 43, and outputs the pulse P _T1 after a predetermined time has elapsed. Further, the timer 57 is operated for 24 hours a day (for example, operating from 9:00 to 17:00, 17:00 to 9:00).
(Stop until 0) is registered internally, and the pulse P _T2 is output based on the registered operating time zone.

The sensor 58 is appropriately installed in the main body of the overhead traveling vehicle 1 and detects the abnormal approach of another overhead traveling vehicle and outputs a detection signal.

Further, the binary counter 5 is provided by the various means described above.
When the level of the output terminal Q of 2 becomes H, the transistor 5
6 becomes conductive, the coil R is excited, and the contact r is closed. The level of the output terminal Q of the binary counter 52 is L
Then, the transistor 56 becomes non-conductive, the coil R is demagnetized, and the contact r is opened.

That is, as shown in FIG. 3, the power switch 1
When the state in which 1a and the contact point r are turned on is the normal mode, and the state in which the power switch 11a is turned on and the approach r is opened is the sleep mode, the remote control receiver 51 is the A element that shifts from the normal mode to the sleep mode. P _r , the ON / OFF signal of the changeover switch 53, the pulses P _S1 and P _{S2 of} the controller 43, and the pulse P _{T2 of the} timer 57. Conversely, the B element that returns from the sleep mode to the normal mode is the remote control reception. Pulse P of device 51
_r , the pulses P _T1 and P _{T2 of} the timer 57 and the detection signal Se of the sensor 58.

Next, the operation will be described with reference to the timing charts of FIGS. 4 and 5. As shown in FIG. 4, when the power switch 11a is turned on, a signal is input to the set terminal SET of the binary counter 52, the level of the output terminal Q becomes H, and the contact r is turned on (T1). As a result, the control circuit 42 is supplied with power from the battery 40.

When a switching command is issued from the remote control transmitter 50 in the above state, the remote control receiver 51 outputs the receiver pulse Pr. Therefore, the level of the output terminal Q of the binary counter 52 changes from H to L, and the contact r is opened (T2). As a result, the control circuit 42 is disconnected from the battery 40.

When the switching command is issued again and the receiver pulse Pr is output, the level of the output terminal Q is changed from L to H and the contact r is closed (T3). As a result, the battery voltage is supplied to the control circuit 42.

Each time the changeover switch 53 is turned on, the level of the output terminal Q changes (T4, T5), and the control circuit 4
It is possible to control power supply to 2 and power stop.

When the sleep pulse P _S2 is issued by a command when both the power switch 11a and the contact point r are turned on, the level of the output terminal Q changes from H to L and the contact point r is opened (T6). Then, after a lapse of a predetermined time, the pulse P _T1 is output from the timer 57, the level of the output terminal Q is changed from L to H, and the contact r is closed (T7). When the power switch 11a and the contact point r are both closed, the controller 43
Outputs a sleep pulse P _S1 . Then, the level of the output terminal Q changes from H to L, and the contact r is opened (T8).

When the power switch 11a is turned on, the contact r
Is released, the detection signal Se is output from the sensor 58.
Is output, the level of the output terminal Q changes from L to H, and the contact r is closed (T9).

Further, as shown in FIG. 5, registration is made from the timer 57.
Pulse P according to the operating time _T2Is output,
The level of the output terminal Q changes, and the power is supplied to the control circuit 42.
Power supply and power stop are automatically controlled (T11, T1
2, T13).

Therefore, when the power switch 11a is turned on and the contact r is opened, that is, when the normal mode is shifted to the sleep mode, the remote control receiver 5 is provided.
Binary counter 52, delay circuit 54, inverter 5
5, the power is supplied only to the timer 57 and the sensor 58 and not to the control circuit 42, so that the power consumption at the time of the operation stop is reduced.

Further, the return from the sleep mode to the normal mode is performed manually by the remote controller transmitter 50 or the changeover switch 53, and is also automatically performed by the timer 57 and the sensor 58. The ceiling carriage 1 can be activated smoothly.

In the above embodiment, instead of the sensor 58, a bumper equipped with another sensor is used as the ceiling carriage 1.
Alternatively, another sensor may detect this when another ceiling transportation vehicle comes into contact with the bumper and output a detection signal.

It is also possible to use other keys of the remote control transmitter to change the setting of the traveling program number of the traveling vehicle or to allow manual operation or the like.

[0037]

According to the present invention as specifically described in connection with the above embodiments, the power supply to the control circuit can be interrupted by various means when the operation is stopped, so that wasteful power consumption can be reduced. Further, since the re-power supply to the control circuit is performed not only manually but also automatically, the labor of the worker can be saved and the carrier device can be started up smoothly.

[Brief description of drawings]

FIG. 1 is a front view showing an overhead traveling carriage according to an embodiment of the present invention.

FIG. 2 is a circuit diagram showing an electric system of the overhead traveling carriage of the embodiment.

FIG. 3 is an explanatory diagram showing a relationship between a normal mode and a sleep mode.

FIG. 4 is a time chart showing an operation state of the embodiment.

FIG. 5 is a time chart showing an operation state of the embodiment.

FIG. 6 is a front view showing a conventional overhead traveling carriage.

FIG. 7 is a circuit diagram showing an electric system of a conventional overhead traveling carriage.

[Explanation of symbols]

1 Overhead Traveling Vehicle 10 Traveling Mechanism 11 Operation Panel 11a Power Switch 11b Start Switch 11c Stop Switch 20 Lifting Mechanism 21 Lifter Belt 22 Transfer Mechanism 23 Locking Part 30 Rail 40 Battery 41 Noise Filter 42 Control Circuit 42a Control Power Supply 43 Controller 44 Main 44 Contactor 50 Remote control transmitter 51 Remote control receiver 52 Binary counter 53 Changeover switch 54 Delay circuit 55 Inverter 57 Timer 58 Sensor M Motor R Electromagnetic relay coil r Electromagnetic relay contact Pr receiver pulse P _S1 , P _S2 sleep pulse P _T1 , P _T2 pulse Se detection signal

Claims (4)

[Claims] 1. A battery, a control circuit that outputs a control voltage when power is supplied from the battery, a controller that performs motor drive control according to an operation command when the control voltage is input, and a battery and a control circuit. Conveying a remote control transmitter that outputs a control power supply switching command in a carrier device equipped with a power switch interposed between them and a motor that drives the carrier device to run along the rails by being controlled by the motor The remote controller receiver is provided separately from the main body of the apparatus, and further, the controller has a function of outputting a sleep pulse when the motor drive control ends, and the remote controller receiver that outputs a receiver pulse every time the control power supply switching command is received in the main body of the carrier. , A change-over switch that outputs an ON / OFF signal when turned on / off, and the receiver pulse or the ON / OFF A binary counter that changes the output signal state between a high level and a low level each time an FF signal or a sleep pulse is input, and a binary counter that has a contact interposed between a power switch and a control circuit A carrier device comprising a relay circuit for opening and closing contacts according to an output signal state of a counter. 2. The transport apparatus according to claim 1, wherein the controller counts the time during which the motor is stopped and determines that the motor stop time has reached a predetermined time or longer, or executes a command in the travel route data. In the latter case, the carrier device is equipped with a timer, and in the latter case, the timer counts the time after the sleep pulse is output, and after a lapse of a predetermined time, the timer outputs the pulse to the binary counter. A transport device characterized by changing the output signal state of the binary counter. 3. A battery, a control circuit that outputs electric power from the battery to output a control voltage, a controller that controls the motor drive in response to an operation command when the control voltage is input, and a battery and a control circuit. In a transfer device equipped with a power switch interposed between the transfer device and a motor that drives the transfer device main body along a rail by being driven and controlled by a controller, the operating time zone of the transfer device is registered in advance. A timer that outputs a pulse according to an operating time period, a binary counter that changes an output signal state between a high level and a low level each time a pulse is input from the timer, a power switch, and a control circuit A carrier device having a relay circuit having a contact interposed between the relay circuit and opening / closing the contact according to an output signal state of a binary counter. 4. The transport apparatus according to claim 1, 2 or 3, wherein an approach or a contact of another transport apparatus is detected, and a detection signal is set to 2.
A transporting device, wherein the transporting device main body is provided with a detecting means for outputting to a binary counter and changing an output signal state of the binary counter.