JP3136882B2 - Transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device, and is particularly effective when applied to a device which travels at a high position (such as a ceiling) 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 an elevating mechanism 20. When a traveling motor (not shown) of the traveling mechanism 10 is driven, the vehicle travels along a rail 30 provided on the ceiling.
When a lifter motor (not shown) of the elevating mechanism 20 is driven, the lifter belt 21 is wound and fed out, and the transfer mechanism 2 is moved.
2 moves up and down, and the motor (not shown) of the transfer mechanism 22 is driven to extend and retract 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
Etc. are provided. 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 unit, 43 is a controller (CP
U, I / O, and servo driver are included), 44 is a main contactor, M is a motor (travel motor, lifter motor, etc.)
It is.

When the power switch 11a is turned on, a control voltage is applied to the controller 43 from the control power supply unit 42a of the control circuit 42, and the CPU is activated. Thereafter, 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, power is supplied to the motor M via the servo driver. In this state, for example, forward / reverse rotation / stop / rotation speed control of the motor is performed according to a program of the CPU, and the overhead traveling carriage 1 performs an operation according to the program. When the operation is stopped, the power supply to the motor M is stopped by pressing the stop switch 11c, and then the power switch 11a is stopped.
And the control voltage was dropped. When the control voltage drops, the main contactor 44 automatically opens.

[0006]

In the prior art, when the motor M is not driven, the power switch 11 is turned off.
If a is left on, the control circuit 42 consumes power, causing a voltage drop in the battery 40. In addition, the components to which the power is supplied deteriorate faster.

[0007] Normally, the rail 30 is near the ceiling, and the overhead traveling carriage 1 is at a high position. In order to eliminate power consumption in the control circuit 42 when the motor M is not driven, the power switch 11a may be opened, but for this purpose, the overhead traveling carriage 1 at a high position must be climbed by a ladder or the like, which is dangerous. is there.

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

[0009]

According to a first aspect of the present invention, there is provided a battery comprising: a battery; a control circuit which is supplied with power from the battery and outputs a control voltage; A controller that controls the motor drive according to the command, a power switch interposed between the battery and the control circuit, and a motor that drives the transport device body along the rails by driving the motor under the control of the controller. In the transport device provided, a remote control transmitter for outputting a control power supply switching command is provided separately from the transport device main body, and further, the controller has a function of outputting a sleep pulse when motor drive control ends, and the transport device main body has a control function. A remote control receiver that outputs a receiver pulse each time a power supply switching command is received, and an ON / OFF signal by turning on and off A 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, or the sleep pulse is input; A relay circuit is provided, which has a contact interposed between the circuit and a relay circuit that opens and closes the contact according to the output signal state of the binary counter.

According to a second configuration of the present invention for solving the above-mentioned problems, in the transport apparatus of the first configuration, the controller counts a time during which the motor is stopped and determines that the motor stop time has reached a predetermined time or more. When the command is executed or when a command in the travel route data is executed, a sleep pulse is output, and a timer is provided in the transport device main body. In the latter case, the time after the sleep pulse is output is counted by the timer, and a predetermined time elapses After that, the timer outputs a pulse to the binary counter to change the output signal state of the binary counter.

A third configuration of the present invention that solves the above-mentioned problems is a battery, a control circuit that is supplied with power from the battery and outputs 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 transfer device equipped with a motor that drives the transfer device main body along the rails by being driven under the control of the motor drive by the controller, the operation time period of the transfer device is registered in advance, and a pulse is output according to the operation time period. A timer whose output signal state changes between a high level and a low level each time a pulse is input from the timer;
And a relay circuit having contacts interposed between the power supply switch and the control circuit, and opening and closing the contacts according to the output signal state of the binary counter.

According to a fourth aspect of the present invention, which solves the above-mentioned problems, the transport device of the first, second, or third configuration detects approach or contact of another transport device, and converts a detection signal into a binary signal. Detection means for outputting to the counter and changing the output signal state of the binary counter is provided in the main body of the transfer device.

[0013]

According to the first aspect of the present invention, when a control power supply switching command is output from a remote control transmitter, a changeover switch is turned on or off, or when the operation is completed, a connection between the battery and the control circuit is established. The interposed contacts open, saving power consumption in the control circuit.

According to the second configuration of the present invention, in addition to the operation of the first configuration, when the motor is stopped for a predetermined time or more or when a command on the travel route data is executed, the contact is set. In the latter case, in the latter case, after a certain period of time, the contact is closed and power is automatically supplied to the control circuit.

Further, according to the third aspect of the present invention, the supply and stop of power to the control circuit are automatically performed in accordance with the operating time period of the transfer device.

According to the fourth configuration of the present invention, in addition to the operation of the first, second, or third configuration, the contact is closed by a detection signal and power is automatically supplied to the control circuit. Is done.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. The parts performing the same functions as those of the prior art are denoted by the same reference numerals, and redundant description will be omitted.

As shown in FIG. 1, the present embodiment includes a remote control transmitter 50 (transmitting a radio wave or light) for outputting a control power supply switching command by being gripped and operated by a driver on the ground. The overhead traveling carriage 1 is provided with a remote control receiver 51 for receiving 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. The contact r is connected between the power switch 11a and the control circuit 42.

The remote control receiver 51 includes a remote control transmitter 5
Outputs a receiver pulse Pr every time a switching command is received from 0
You. In the binary counter 52, the pulse P is applied to the clock terminal CK.
Every time r is input, the level of the output terminal Q becomes high (H).
And low (L) alternately. The changeover switch 53 is
Momentary switch that closes the contact only while pressing
And the ON / OFF signal of the changeover switch 53 is binary.
When input to the clock terminal CK of the counter 52, the output terminal
The level of child Q changes. The delay circuit 54 has a voltage V _DDThe delay
Let the voltage V_DD'And the inverter 55 outputs the voltage
V_DD'To the set terminal SET of the binary counter 52
To enter.

The controller 43 outputs a sloop pulse P _S1 at the end of the operation. Further, when all the motors of the traveling mechanism 10, the elevating mechanism 20, and the transfer mechanism 22 are stopped, the controller 43 counts the time thereafter, and also determines that the stopped state has continued for a predetermined time or more. The sleep pulse _PS1 is output. A command to output the sleep pulse P _S2 is set in advance in the traveling route data read in the traveling program of the controller 43, and the controller 43 outputs the sleep pulse P _{S2 according} to this command.

When the sleep pulse P _S2 is output from the controller 43, the timer 57 counts the time thereafter, and outputs a pulse _PT1 after a predetermined time has elapsed. Further, the timer 57 operates in a 24 hours a day operating period (for example, operating from 9:00 to 17:00, 17:00 to 9: 0).
(Stop to 0) is registered internally, and a pulse _PT2 is output based on the registered operating time zone.

The sensor 58 is appropriately installed on the main body of the overhead traveling vehicle 1 and detects when another overhead traveling vehicle approaches abnormally, and outputs a detection signal.

The binary counter 5 is provided by the various means described above.
When the level of the output terminal Q of H2 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
, The transistor 56 becomes non-conductive, the coil R is demagnetized, and the contact r is opened.

That is, as shown in FIG.
When the state in which the contact 1a and the contact r are turned on is set to the normal mode, and the state in which the power switch 11a is turned on and the approach r is opened is set to the sleep mode, the A element that shifts from the normal mode to the sleep mode includes the remote control receiver 51. pulse P _r, oN of the switch 53, there is a pulse P _T2 of the OFF signal, pulse P _S1 of the controller 43, P _S2 and the timer 57, the B element to return from the sleep mode to the normal mode Conversely, a remote control receiving Pulse P of the vessel 51
_r , pulses P _T1 and P _{T2 of} the timer 57 and a detection signal Se of the sensor 58.

Next, the operation will be described with reference to the timing charts of FIGS. 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). Thus, 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 a 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). Thus, the control circuit 42 is disconnected from the battery 40.

When a switch command is issued again to output the receiver pulse Pr, the level of the output terminal Q changes 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 switch 53 is turned on, the level of the output terminal Q changes (T4, T5), and the control circuit 4
2 can control power supply and power stop.

When the sleep pulse P _S2 is issued by a command while both the power switch 11a and the contact r are turned on, the level of the output terminal Q changes from H to L, and the contact r is opened (T6). Subsequently, when a predetermined time elapses thereafter, the pulse _PT1 is output from the timer 57, the level of the output terminal Q changes from L to H, and the contact r is closed (T7). When the operation ends when both the power switch 11a and the contact r are turned on, the controller 43
Outputs a sleep pulse _PS1 . 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 and the contact r
Is open, the detection signal Se from the sensor 58 is output.
Is output, the level of the output terminal Q changes from L to H, and the contact r is closed (T9).

Also, as shown in FIG.
Pulse P according to the operating time _T2Is output,
The level of the output terminal Q changes, and 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 open, that is, when the mode shifts from the normal mode to the sleep mode, the remote control receiver 5
Binary counter 52, delay circuit 54, inverter 5
5, since power is supplied only to the timer 57 and the sensor 58 and not to the control circuit 42, power consumption during operation stop is reduced.

Returning from the sleep mode to the normal mode is performed not only manually by the remote control transmitter 50 or the changeover switch 53 but also automatically by the timer 57 and the sensor 58, so that the labor of the operator can be saved. The ceiling transport cart 1 can be started up smoothly.

In the above embodiment, instead of the sensor 58, a bumper provided with another sensor is mounted on the ceiling transporting truck 1.
And another sensor may detect this when another ceiling transport vehicle comes into contact with the bumper and output a detection signal.

Further, it is also possible to use another key of the remote control transmitter to change the setting of the traveling program number of the traveling vehicle or to enable manual operation or the like.

[0037]

According to the present invention, the power supply to the control circuit can be interrupted by various means when the operation is stopped, so that useless power consumption can be reduced. In addition, since the re-power supply to the control circuit is performed not only manually but also automatically, the labor of the operator can be saved and the transfer device can be started smoothly.

[Brief description of the 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]

Reference Signs List 1 overhead traveling carriage 10 traveling mechanism 11 operation panel 11a power switch 11b start switch 11c stop switch 20 elevating mechanism 21 lifter belt 22 transfer mechanism 23 locking part 30 rail 40 battery 41 noise filter 42 control circuit 42a control power supply part 43 controller 44 main 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 , _PT2 pulse Se detection signal

Continuation of the front page (56) References JP-A-56-156089 (JP, A) JP-A-61-166497 (JP, A) JP-A-62-113211 (JP, A) JP-A-4-218823 (JP) , A) Japanese Utility Model Showa 58-92281 (JP, U) Japanese Utility Model Showa 51-87873 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66C 13/40 G05D 1/02

Claims (4)

(57) [Claims] A battery, a control circuit that is supplied with power from the battery and outputs a control voltage, a controller that performs motor drive control in response to an operation command when the control voltage is input, and a battery and the control circuit. Conveys a remote control transmitter that outputs a control power supply switching command in a transport device that has a power switch interposed and a motor that drives the transport device body along the rails by driving the motor under the control of a motor by a controller. A remote control receiver that outputs a receiver pulse each time a control power supply switching command is received, and the controller has a function of outputting a sleep pulse when the motor drive control is completed. Switch for outputting an ON / OFF signal by turning on / off the switch, the receiver pulse and the ON / OFF signal. A binary counter whose output signal state changes between a high level and a low level each time a FF signal or a sleep pulse is input; and a binary counter having a contact interposed between a power switch and a control circuit. A transport device comprising a relay circuit that opens and closes contacts according to the output signal state of a counter. 2. The transfer device according to claim 1, wherein the controller counts a time during which the motor is stopped, and determines that the motor stop time has reached a predetermined time or more, or executes a command in the travel route data. In addition to the output of the sleep pulse, a timer is provided in the main body of the transport device, and in the latter case, the timer counts the time after the output of the sleep pulse, and outputs a pulse from the timer to the binary counter after a predetermined time has elapsed. And changing the output signal state of the binary counter. 3. A battery, a control circuit that is supplied with power from the battery and outputs a control voltage, a controller that performs motor drive control in response to an operation command when the control voltage is input, and a battery and the control circuit. In a transfer device equipped with a power switch interposed therebetween and a motor that drives the transfer device body along the rail by being driven and controlled by a motor by a controller, an operation time zone of the transfer device is registered in advance. A timer that outputs a pulse in accordance with an operation time zone, 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. And a relay circuit that has a contact interposed between the relay circuit and opens and closes the contact according to the output signal state of the binary counter. 4. The transporting device according to claim 1, wherein the approaching or contacting of another transporting device is detected, and the detection signal is set to two.
A transport device, comprising: a transport device main body provided with a detecting means for outputting to a binary counter and changing an output signal state of the binary counter.