JPS5962012A - Moving rack control apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a movable rank that opens an arbitrary passage by lateral movement of a movable shelf.

In the moving rank control device as described above, an operation switch is provided for each passage to electrically interlock the passage to prevent the passage from being stopped during opening/closing operations.

This operation switch is used to avoid the danger of accidentally closing an open passage, so under normal handling procedures it should only be used when the passage is open. Ru. However, if the operation switches of each passage are pressed one after another due to mischief by a person passing by the moving rank, interlocks will be applied to many closed passages that do not originally need to be interlocked. When releasing an interlock, you would normally have to release only the interlock on the open passage, but instead of going to each passage and releasing the unnecessary interlocks one by one. However, the negative impact is significant.

The present invention provides a control device capable of solving the above-mentioned problems, and one embodiment thereof will be described below with reference to the attached illustrative drawings.

In Figure 1, 1 to 3 are roads between shelves, 4.5 is a fixed shelf, and 6 is a fixed shelf.
, 7 are movable shelves that can be moved laterally. The passage 1 is opened when the movable shelves 6 and 7 move laterally toward the fixed shelf 5, and the passage 2 is opened when the movable shelf 6 moves laterally toward the fixed shelf 4 and the movable shelf 7 moves laterally toward the fixed shelf 5. Opened by horizontal movement. The passage 6 is opened by the movable shelves 6 and 7 moving laterally toward the fixed shelf 4. 8 is an operation panel corresponding to passage 1, 9 is an operation panel corresponding to passage 2, and 1o is an operation panel corresponding to passage 5. The operation panels 8 and 9 are attached to the end of the movable shelf 6 on the passage entrance side so as to be adjacent to the corresponding passages 1 and 2, and the operation panel 1o is attached to the end of the movable shelf 7 on the passage entrance side. It is attached at a position adjacent to 5.

Each cutting board 8 to 10 has interlock indicator lights 11 to 15 for each passage 1 to ro (may be installed in a location other than the operation panel), and a release operation push switch PBI that also serves as interlock release. PB3 and stop operation push button switch PBI
O to PB12 are provided, and the operation panel 8 is further provided with push buttons PB4. PB5 is
Operation board? I'm a connoisseur! 81 and a push button switch PB6 for opening the passage 6. PB7, and on the operation panel 1o there is a dedicated push button switch PB8 for opening passages 1 and 20. PB9
However, each is provided separately.

In addition, the movable shelf 6 has a function for detecting the opening and closing of passages 1 and 2 (shelf 4
, 6 and between shelves 6 and 7) photoelectric switch PH
3I, PH32, and photoelectric switches PH34 to PH35 for detecting the entry of a person into each passage 1.2, and the movable shelf 7 is equipped with a switch for detecting opening/closing of the passage 5 (detection of contact and separation between the shelves 5 and 7).
A photoelectric switch PH33 for detecting the entry of a person into the passageway 6, and a photoelectric switch PH36 for detecting the entry of a person into the passageway 6 are provided.

In the circuit diagrams shown in Figures 2 to 4, the a-b open circuit is the control circuit corresponding to passage 1, the c-d open circuit is the control circuit corresponding to passage 2, and the e-f open circuit is the control circuit corresponding to passage 2. Control circuits corresponding to the passage 6 include an a-b open circuit and a c-d open circuit, which are provided in the movable shelf 6, and an e-f open circuit, which is provided in the movable shelf 7. Further, a predetermined DC voltage is applied between the N and P terminals of each circuit by the power switch oNt. In this circuit diagram, R1-R29, X, and Y are diesel relays, T'RI, TR2 are tights relays, and KRI
~KR3 is an interlock keep relay. still,
Photoelectric switch for detecting passage opening/closing 1) II 31-P
Relays R7 to R9 operated by H33 are demagnetized only when the passage is closed below a certain value of 11 and the switch is in a large light state, and the photoelectric switch for intrusion detection PH34 is demagnetized.
The relay RIO~R12 operated by ~PH36 is demagnetized only when the current switch is in the light-blocking state due to a person passing by.

Next, to explain the operation based on the circuit diagrams of FIGS. 2 and 3, suppose that passage 2 is open as shown in FIG. Assuming that relays KRI to KR3 are in the reset state, when you turn on the power switch and apply voltage between the N and P terminals of each circuit, timer relay TR2 is energized and each relay is delayed by the slightly set time. - Connected to R23 to R25 1. The B contact of the same timer relay opens. On the other hand, when the power is turned on, only the opening/closing detection relay R8 corresponding to the path 2 in the open state is energized by the action of the photoelectric switch P H32, and the contact of relay R8 connected to the relay R24 is closed. Only relay R24 corresponding to C
The contact of relay R2 is closed, and the keep relay KR2 is set, which interlocks the relay T'82 to the open state.

When keep relay KR2 is sent as described above, the b contact of keep relay KR2 connected to relay X opens, and the relay X contact remains open.
It is not possible to energize the open circuit command relays R19 to R21. That is, neither of the movable shelves 6, 7 can be moved laterally. In this way, when the power is turned on, the interlock is automatically applied to the open passage 2, but in this state, the interlock indicator light 1 on the operation panel 9 corresponding to the passage 2
2 lights up, the worker moves in and out of the open passageway 2, confirms whether it is safe to close the passageway 2, and then presses the interface on the control panel 9 next to the road. Four-way release and open circuit operation push button switch PB
Press 2 to energize relay R2 and keep relay KR2.
Close the relay R2 contact connected to the reset side of
The interlock can be released by resetting the keep relay KR2. That is, the interlock for the passage 2 in the open state is the operation panel 9 corresponding to the passage 2.
It can only be released using the circuit-opening operation push button switch PB2, which also serves as the ink-lock release function.

Reset keep relay KR2 as described above and
When the interlock is released, relay X is energized,
Its relay X contact closes. In this state, for example, in order to open the passage 1, the operation panel 8 corresponding to the passage MA 1 is
Press the open circuit pushbutton PBI to switch on relay R1.
or energize relay R4 by pressing push button PB6 or PB8 dedicated to opening passage 1 provided on operation panels 9 and 10 corresponding to other passages 2 and 5+.
By doing so, the relay R connected to relay R16
1 contact or relay R4 contact is closed, and relay R16 is energized. As a result, the relay R16 contact connected to the open circuit command relay R19 closes, and the relay R19 is energized. Therefore, the relay R19 contact in FIG. 4 is closed, and at this time, the passage open/close detection relay R8 contact corresponding to passage 2 is closed (that is, passage 2 is open), so that relay R26 is energized and the movable shelf Since the rightward drive command for the movable shelf 6 is output, the movable shelf 6 is driven to move laterally to the right, that is, to the movable shelf 7 side.

On the other hand, the energization of relay R19 closes the contact of relay R19 connected to relay R22, and relay R22 is energized. Also, the rightward drive command relay R26 of the movable shelf 6
, the relay R26 contact connected to the running detection relay Y closes and the running detection relay Y is energized, so that the relay R22 connected to the timer relay TRI closes.
The contact closes, but the b contact of relay Y opens, so timer relay TRI is not energized. Therefore, press sum switch PB
Even if i returns to OFF and the relay R16 contact opens, the open circuit command relay R19 is a self-holding contact and a timer relay TR.
It is self-held via the I and b contacts, and the rightward drive command relay R26 of the movable shelf 6 is excited in a coarse manner.

In addition, the b contact of relay R22 is the open circuit command relay R19~
R2] is useful for selectively exciting R2]. or,
The purpose of using the timer relay TRI is to prevent the self-holding circuits of the open circuit command relays R19 to R21 from opening between the time when the relay R22 contact closes and the time when the b contact of the running detection relay Y opens. be.

Flexible J shelf 6 that can be moved laterally to the right by the above action
When approaching JJI shelf 7 at a constant Vt1tilt,
The photoelectric switch PH32 for detecting opening/closing of the passageway 2 enters the light receiving state, and the relay R8 for detecting opening/closing is demagnetized. Therefore, the fourth
The relay R81 point in the diagram is open and the relay R26 is 71! Since the rightward drive command for the movable shelf 6 disappears, the rightward drive of the movable shelf 6 is automatically stopped. Then, the relay R26 contact connected to the running detection relay Y opens, so the relay Y is demagnetized, and the b contact of the relay Y connected to the timer relay TRI closes, so the timer relay TRI
The b contact opens after a short set time has elapsed, and the open circuit command relay R19 is demagnetized. Therefore, relay R22 is also demagnetized and returns to its original state.

To bring the movable shelf 6 to an emergency stop after the movable shelf 6 has started to move laterally, press any one of the stop operation push buttons PBIO to PB12 on the operation panels 8 to 10 to activate the relay R13. ~ One of R15 is energized and b of relays R13 to R15 is connected to relay X.
One of the contacts opens and relay X demagnetizes. Therefore, while pressing the stop operation & +1 number SOCH, the relay X contacts connected to the l5il path command relays R19 to R21 open, the open circuit command relay R19 is demagnetized, and the drive of the movable shelf 6 is stopped as described above. be done.

In addition, when passage 1 opens more than a certain value r1, the open/close detection photoelectric switch PH31 becomes light-shielded, and the open/close detection relay R7
is energized and the contact of relay R7 connected to relay R23 closes, opening passage 1. When switch PBIO is pressed, relay R13 is energized and the relay R13 contact connected to relay R23 is closed, so the relay R23 is energized and -1-prelay KRI is set via the relay R23 contact. Ru.

Therefore, keep relay KRI connected to relay
The b contact of is opened and the relay X is held in a demagnetized state, so the movable shelf 6 is not automatically stopped as described above, and the passage 1 is interlocked. That is, since the relay X contact is held open, the other passage 2
Or passage 6 cannot be opened.

In addition, when the movable shelf 6 automatically stops after the passage 1 is completely opened as described above, the interlock for the passage 1 is not automatically set, or the b of the open command relay R19 is connected to the relay R23. Since the contacts and the open/close detection relay R7 contact of passage 1 are closed, when a worker enters passage 1, the entry detection photoelectric switch P H34 becomes light-shielded, and the entry detection relay Rho is demagnetized, causing it to open. Since the b contacts of the relays R1 and O are closed, the relay R23 is energized, and the keep relay KRI is set as described above, so that the passage 1 is interlocked.

When passage 1 is opening, passage 2 is closing, but when a person enters passage 2 which is closing, the entry detection relay R11 is energized by the action of photoelectric switch PI (S5) for entry detection. At this time, since the b contact of the opening command relay R20 of the passage 2 connected to the relay R24 and the contact of the opening/closing detection relay R8 of the passage 2 are closed, the entry detection relay R11 is energized as described above. By closing the b contact of R11, relay R24 is energized, interlock keep relay KR2 of passage 2 is set 1, and passage 1282 is interlocked.In other words, by setting keep relay KR2, the b
The contact opens, the relay , the opening operation of all passages 1 to '5 becomes impossible.

In the open aisle 1, a passage 128 for fixed shelves 4 or movable shelves 6
When the worker exits passage 1 after loading and unloading articles from the area facing passage 1, he presses the opening operation push button FBI on the operation panel 8 corresponding to passage 1281 to re-energize relay R1. , reset the keep relay KRI by closing the relay R1 contact connected to the reset side of the keep relay KRI, and reset the relay X.
Return to the original excitation state and release the interlock. When passage 2 is interlocked as described above, press open operation push button PB2 on operation panel 9 corresponding to passage 2 to energize relay R2, and keep relay KR2 is activated via the contact of relay R2. All you have to do is reset it.

When opening the passageway from the state shown in FIG.
Alternatively, the leftward drive command relay R29 of the movable shelf 7 may be energized by pressing the push button PB5 or PB7 dedicated to opening the i'850 on the other operation panels 8 and 9. Also, when opening passage 2 from the state in which passage 1 is open, press the opening operation push button PB2 on the operation panel 9 corresponding to passage 2.
Alternatively, push the push button switch PB4 or PB9 dedicated to opening the passage 2 on the other operation panel 8.10 to energize the leftward drive command relay R27 of the movable shelf 6. To open the passage 2 from the open passage condition, the push button switch PB2, PB4, or PB9 may be pressed in the same manner as described above to energize the rightward drive command relay R28 of the movable shelf 7. Furthermore, when passage 6 is opened from another while passage 1 is open,
Open passageway t'a tH push button switch PB3 or P
You can press B5 or PB7, but in this case, movable vfA6 first starts lateral movement by the excitation of leftward drive command relay R27, and after the movable shelf 6 and movable shelf 7 are opened by a certain distance or more, that is, the passage 2 After the opening/closing detection relay R8 contact closes, the movable shelf 7ρ leftward drive command relay R29 is energized, and the movable shelf 7 starts to move laterally in the same direction. The movable shelf 6 automatically stops when the passage 1 is closed, and the movable shelf 7 automatically stops when the passage 2 is closed. From passage 6 open to passage 1
A similar operation occurs when opening a .

In addition, as mentioned in 1., the operation to open the passage is performed not only by using the interlock release and gate opening operation push 611 switches P81 to PB3 of the ti-cutting board next to the passageway that should be opened, but also by using the mulberry-cutting plate next to the other passageway. Push button switch PB for opening the circuit, 1~
PB9 can also be used to release the interlock, but the interlock release operation for a passage that is interlocked in the open state cannot be performed using the push button switches PB4 to PB9 dedicated to opening the passage. This is possible only with the interlock release and circuit opening operation push button switches PBL to PB3 on the operation panel.

Claims (1)

[Claims] In a control device for a movable rank that opens an arbitrary passage by lateral movement of a movable shelf, an opening/closing detection means for detecting the open/closed state of each passage is provided, and an operation switch is provided to electrically interlock each passage. A moving rank control device comprising a control circuit provided for each passage and interlocking only those passages whose open state is detected by the opening/closing detection means into an open state by the operation switch.