JPH0629082B2 - Rotating shelf with work position display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention has a large number of shelves that rotate in a vertical circulation path or a horizontal circulation path, and each shelf has a plurality of storage compartments. The present invention relates to a rotary shelf having a work position display device, which is capable of instructing a worker with a display light of a work target section of a single shelf which is alternatively called by an article loading / unloading section.

(Prior Art) The article loading / unloading section of this type of rotating shelf is provided for informing the operator of which section of the shelf unit called by the article loading / unloading section should be loaded / unloaded. A work instruction light and a work completion switch that is operated to start the next operation when the work is completed are provided corresponding to each work position (each storage compartment of a single shelf).

Thus, switching means such as a switching transistor is connected in series to the power supply circuit of each work instruction light, and the system controller including a microcomputer or the like operates at a predetermined position based on the set conditions. One of the switch means is closed so that only the indicator light is turned on. And after the work is completed, the worker
Only when the work completion switch paired with the lit work instruction light is closed, the control for calling the next shelf unit to the article loading / unloading section is started.

The work position display device on the rotating shelf is used as described above, but in the conventional work position display device of this type, a large number of work completion signal input terminals corresponding to the respective work completion switches are provided in the system. It is necessary for the controller, and each input end and each work completion switch are separately connected by wiring, and in the system controller, the closed work completion switch forms a pair with the work indicator light in the lit state. It is configured to check whether or not there is, and to start the next control as work completion only when it is a corresponding one.

(Problems to be Solved by the Invention) In such a conventional configuration, in the case of a carousel having a large number of work positions and a large number of work indicator lights and work completion switches, the number of connection wires to the work completion signal input end of the system controller is large. However, since the system controller needs to have a function of checking whether or not the work completion switch operated as described above is correct, the initial cost is high.

(Means for Solving Problems) The present invention proposes a work position display device capable of solving the above-mentioned conventional problems, and the reference numerals of the embodiments whose features will be described later are put in parentheses. In addition, a large number of shelves (4) that rotate the circulation path, the controller (19) of the motor (8) that rotates the shelves (4), and the motor controller (19) are attached. Controlling System Controller (18)
And the work indicator lights provided corresponding to the storage / removal section (11) for the single shelf (4) and the storage compartments (4a to 4e) of the single shelf (4) stopped at this storage / removal section (11). (13a-13e)
And a work completion switch (14a to 14e), and the system controller (18) is set to the work target compartment among the storage compartments (4a to 4e) of the single shelf (4) called by the article loading / unloading section (11). Based on the work completion signal input by operating the work completion switch (14a to 14e) while lighting one corresponding work instruction light (13a to 13e), the next shelf unit (4)
It is a carousel with a work position display device for controlling the motor controller (19) to call the article loading and unloading section (11), and the power supply circuit of each work indicator light (13a to 13e) includes The switch means (15a to 15e) that is closed by the lighting command signal of is inserted in series, and each work completion switch (14a to 14e) is a work instruction lamp that forms a pair.
(13a to 13e) and the switch means (15a to 13e) connected to them.
15e) is provided between the intermediate point and one output end (OP), and the system controller (18) includes a switch means (15a to 15e) connected in series and a work completion switch (14a to 14e). Is characterized in that the potential change at the output end (OP) when both of the two are closed is input as a work completion signal.

(Embodiment) An embodiment in which the present invention is applied to a vertical circulation type rotary shelf will be described below with reference to the attached illustrative drawings.

As shown in FIG. 1 and FIG. 2, the vertical circulation type rotary shelf 1
A plurality of horizontally long tray-shaped shelves 4 are provided to rotate a vertical circulation path 3 provided in a casing 2. As is well known, each shelf unit 4 is connected to a drive chain 5 at equal intervals, and the drive chain 5 is rotated by a drive toothed wheel 6 to rotate the vertical circulation path 3. Reference numeral 7 is an idler tooth wheel, and 8 is a motor for driving the drive tooth wheel 6. An article loading / unloading section 11 having a shutter 9 that can be opened and closed and a workbench 10 is provided on the front surface of the casing 2, and an operator can access the specific shelf unit 4 called by the article loading / unloading section 11. Articles can be taken in and out through the article taking-in / out section 11.

As shown in FIG. 3, a work position display device 12 is attached to the upper side of the article loading / unloading section 11 and the outer side of the casing 2. The work position display device 12 is provided in the article loading / unloading section 1
Corresponding to each of the storage compartments 4a to 4e of the single shelf 4 called up by No. 1, work instruction lights 13a to 13e for instructing the operator of the article take-out compartment, and work completion of pairing with the work instruction lights 13a to 13e Push button switches 14a to 14e are provided.

As shown in FIG. 4, one power supply terminal of each work instruction lamp 13a to 13e is connected to a common power supply terminal P pole (24V), and the other power supply terminal is provided with switching means 15a to 15e using switching transistors. It is connected to the common power supply terminal N pole (0V) via the. Reference numerals 16a to 16e are operation terminals (base terminals of switching transistors) of the switch means 15a to 15e.

Each of the work completion push button switches 14a to 14e has one terminal connected to one output terminal OP common to all the switches 14a to 14e, and the other terminal having a reverse current from the power terminal P pole to the output terminal OP. 17a to 1 for blocking
7e corresponding to the switch means 15a to 15e of the corresponding work instruction lights 13a to 13e, that is, the work instruction light 13a.
.About.13e and switch means 15a to 15e.

Reference numeral 18 denotes a system controller using a microcomputer, and one output terminal OP is connected to a plurality of output terminals for selectively outputting a lighting instruction signal to the operation terminals 16a to 16e of the switch means 15a to 15e. It has an input end. Reference numeral 19 denotes a motor controller that controls a motor 8 that circulates and drives the single shelf 4, and is controlled by the system controller 18.

The system controller 18 drives the motor 8 via the motor controller 19 so as to call the selected specific shelf unit 4 to the article loading / unloading unit 11, but at the same time when the predetermined shelf unit 4 stops in the article loading / unloading unit 11. Alternatively, before the shelving unit 4 is stopped, an operation voltage (lighting instruction signal) is applied to the operation terminal corresponding to one selected work position, for example, the operation terminal 16b, and the switch means 15b.
Only the work indicator lamp connected to this, that is, the work indicator lamp 13b corresponding to the selected work position, is charged with the power supply voltage between the power supply terminals P and N poles and turned on. Let

The worker calls the shelf unit 4 called by the article loading / unloading unit 11.
In each of the storage compartments 4a to 4e, the operation of taking out a predetermined number of predetermined articles from the storage compartment 4b indicated by the lit work instruction lamp 13b is performed. After the work, in order to turn on the switch 14b and the work instruction light 13b by closing the switch 14b that is paired with the work instruction light 13b that is lit among the work completion push button switches 14a to 14e. The output end OP is electrically connected to the N pole of the power supply terminal via the switch means 15b which is closed, and a potential change (work completion signal) is generated at the output terminal OP. Even if the other work completion push button switches 14a, 14c to 14e are accidentally closed, the switch means 1 is connected to these switches.
Since 5a and 15c to 15e are open, the output end OP does not conduct to the power supply terminal N pole. That is, no potential change (work completion signal) occurs.

The system controller 18 that has received the work completion signal due to the change in the potential of the output terminal OP is the shelf unit 4 for the next work.
In order to call the article loading / unloading section 11, the motor 8 is driven via the motor controller 19 to rotate the shelf unit 4 in the vertical circulation path 3 as described above.

Although the work instruction light and the work completion switch are separately provided, a self-lighting push button switch in which the both are integrated can be used.

(Operation and Effect of the Invention) According to the rotary shelf with the work position display device of the present invention that can be implemented as described above, the system is based on the operation even if the number of the work completion switches paired with the work instruction light is large. There is only one output end that outputs the work completion signal to the controller, and the number of connection wires for transmitting the work completion signal to the system controller is one system as in the case where one work completion switch is used. In addition, since it is not necessary to check whether or not the work completion switch is properly operated on the system controller side as in the conventional case, it is possible to significantly reduce the cost.

Moreover, since the work completion signal can be output to the output terminal only when the work completion switch corresponding to one work indicator light that has been selectively lit up is closed, the next control is started based on an erroneous operation. There is no fear of causing it, and the carousel can be automatically controlled safely.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional side view for explaining the structure of a vertical rotary shelf.
2 is a cross-sectional plan view of the same, FIG. 3 is a perspective view for explaining the structure of the article loading / unloading section, and FIG. 4 is a wiring diagram for explaining an embodiment of the present invention. 12 ... Work position display device, 13a to 13e ... Work indicator light, 14a to 14e ... Work completion push button switch, 1
5a to 15e ... switch means (switching transistors), 16a to 16e ... operation terminals, P, N ... power supply terminals, OP ... work completion signal output terminals.

Claims (1)

[Claims] 1. A large number of shelves (4) that rotate in a circulation path,
Controller for the motor (8) that rotates this shelf unit (4)
(19), a system controller (18) for controlling the motor controller (19), an article loading / unloading section (11) for the shelf single unit (4), and a shelf single unit stopped at the article loading / unloading section (11)
The system controller (18) is equipped with work instruction lights (13a to 13e) and work completion switches (14a to 14e) provided corresponding to the respective storage compartments (4a to 4e) in (4), and the system controller (18) Among the storage compartments (4a to 4e) of the single shelf (4) called by (11), one work instruction light (13a to 13e) corresponding to the work target compartment is turned on, and the work completion switch (14a ... Based on the work completion signal input by the operation of 14e), the next shelf unit (4)
It is a carousel with a work position display device for controlling the motor controller (19) to call the article loading and unloading section (11), and the power supply circuit of each work indicator light (13a to 13e) includes a system controller (18). The switch means (15a to 15e) that is closed by the lighting command signal of is inserted in series, and each work completion switch (14a to 14e) is a work instruction lamp that forms a pair.
(13a to 13e) and the switch means (15a to 13e) connected to them.
15e) is provided between the intermediate point and one output end (OP), and the system controller (18) includes a switch means (15a to 15e) connected in series and a work completion switch (14a to 14e). A rotary shelf with a work position display that inputs the potential change at the output end (OP) when both are closed as a work completion signal.