JPH0659929B2 - Traveling control device for mobile shelf equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention provides a plurality of rows of traveling paths of movable shelves that are movable in the longitudinal direction of the shelves, and stores the traveling shelves of each traveling path on one side of the traveling path. The present invention relates to a traveling control device for mobile shelf equipment, which is configured to be able to separately reciprocate between a position and a work position on the other end side.

(Prior art and its problems) In the above-mentioned moving rack equipment, the moving rack to be worked is moved from the storage position to the working position only when carrying out the loading / unloading work, and the moving rack is normally stored in the storing position. It is something to keep. Therefore, the fact that there is a moving shelf at the work position means that there is a high possibility that there is a loader / unloader near the moving shelf, but in the conventional moving shelf equipment of this type, it was put out at the working position. Since it was possible to move other moving shelves from the storage position to the work position even when there were moving shelves,
When there is a movable rack that has been moved to the work position, other movable racks are mistakenly moved forward from the storage position to the work position, in particular, the movable rack on the travel route that is adjacent to the movable rack that is at the work position as described above. Then, there was a risk of collision or contact accident with the worker.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention provides
A detector for detecting that each movable rack is in the storage position is provided, and when an operation for advancing a specific movable rack from the storage position to the working position is performed, the detectors of all the other movable racks are detected. The present invention proposes a traveling control device for mobile rack equipment, which is provided with contact means for starting the advancing movement of the specific mobile rack only when is ON.

(Example) Hereinafter, one example of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, (1) is each a moving rack, and in the illustrated example, three moving racks (1), A moving rack to C moving rack, are arranged in parallel to each other on a traveling route. Each of the guide rails (2) is supported so as to be reciprocally movable in the longitudinal direction of the shelf. In the travel route of each of these moving shelves (1), half the area becomes the moving shelf storage position (3), and the other half area becomes the working position (4) for loading and unloading work on the moving shelf (1). Each moving rack (1) has a drive motor (5), this motor
Motor controller (6) to control (5), mobile shelf (1)
Is provided with a limit detector (7) for detecting the state where the mobile rack (1) is in the storage position (3) and a limit detector (8) for detecting the state where the movable rack (1) is in the working position (4). .

(9) is an operation panel installed beside the doorway (10) of the worker to the work position (4), and (11) is a movable rack (1) depending on the operation content of the operation panel (9). ) Is a control means for controlling the motor controller (6).

The control means (11) is programmed so that each movable rack (1) can be activated and controlled by the procedure shown in the flowchart of FIG. That is, for example, the moving shelf A (1) is stored at the storage position.
When the operation panel (9) is operated to start from (3) to the working position (4), another B moving rack is started before the A moving rack (1) is started.
Whether or not both (1) and C movable rack (1) are in the storage position (3) is determined by whether or not the respective limit detectors (7) are in the ON state, and both movable racks are When it is in the limit (the storage position (3)), a start signal is given to the motor controller (6) of the A moving shelf (1), the motor (5) is driven to rotate normally, and the A moving shelf (1) is moved. ) Travels from the retracted position (3) toward the work position (4), and automatically stops when the work position (4) is reached and the limit detector (8) is turned on. However, as shown in FIG. 1, even one of the B moving rack (1) and the C moving rack (1) is in the working position (4), and the limit detectors (7) of both moving racks are located. If each is not in the ON state, the A
The start signal is not given to the motor controller (6) of the moving rack (1), and the moving rack A (1) cannot be started. In this case, if necessary, start-up display using a buzzer, lamp, etc., and instructions for retracting the moving shelf (1) in the working position (4) should be given on the operation panel (9). Can be done.

As shown in the flow chart of FIG. 2, another B mobile shelf
Even when (1) or the C moving shelf (1) is moved from the storage position (3) to the working position (4), if all the moving shelves (1) other than the activation target are in the storage position (3). Only the mobile shelf (1) to be activated can be activated.

(Operation and Effect of the Invention) As described above, according to the present invention, when an operation for advancing a specific movable rack from the storage position to the working position is performed, the detectors of all the other movable racks, that is, Only when the detector that detects the state in which the movable rack is in the storage position is in the ON state, it is possible to start the advance movement of the specific movable rack. Despite the existence, there is no need to move another mobile shelf to the work position, ensuring the safety of workers who are loading and unloading work from the mobile shelf that was previously in the work position. You can secure it.

[Brief description of drawings]

FIG. 1 is a schematic plan view for explaining the structure of a moving rack facility, and FIG.
The figure is a flowchart for explaining the control procedure. (1) ... A moving shelf to C moving shelf, (2) ... guide rail, (3) ...
Mobile shelf storage position, (4) ... working position, (5) ... travel drive motor, (6) ... motor controller, (7) ... extension detector, (8) ... extension detector, (9) ... Operation panel, (10) ... Worker entrance / exit, (11) ... Control means.

Claims (1)

[Claims] 1. A plurality of traveling paths of movable shelves that are movable in the longitudinal direction of the shelves are arranged side by side, and the traveling shelves of each traveling path are provided between a storage position on one end side of the traveling path and a work position on the other end side. Separately, in the moving rack equipment configured to be capable of traveling back and forth, a detector for detecting that each moving rack is in the storage position is provided, and an operation for advancing and moving a specific moving rack from the storage position to the working position is performed. A traveling control device for mobile rack equipment, which is provided with control means for starting the advance movement of the specific mobile rack only when the detectors of all other mobile racks are in the ON state.