JPS6025341B2 - Automatic warehouse for coils - Google Patents

Description

[Detailed description of the invention] The present invention relates to an automatic warehouse for coils.

Conventional coil warehouses often rely on manual labor to load and unload coils, requiring a large amount of labor and the work is quite dangerous.

An object of the present invention is to provide an automatic warehouse for coils that does not require much manpower and can be operated efficiently and safely.

Another feature of the present invention is that it provides a technical means that can be modified at very low cost when attempting to unmann a conventional warehouse that requires many workers. Therefore, the main points of the present invention are as follows.

First, when the coil transport vehicle enters the warehouse, the control device receives a command from the warehouse entry/exit command device and is activated, giving a scanning command to the self-propelled scanning detection device, and the self-propelled scanning detection device moves inside the warehouse. While traveling on a track laid down along the coil transport route, the coil conveyor scans the coil placed on the coil transport vehicle, detects its position and distance to the end of the coil, and sends the detection signal. It is sent to a radio-controlled overhead crane (hereinafter simply referred to as an overhead crane). The overhead crane moves in response to the detection signal, lifts up the coil on the coil carrier, carries the coil to a designated number in the warehouse, and lowers it to a predetermined position in accordance with a separate signal from the control device. Now, the self-propelled scanning detection device has a phototube type position detection device and an ultrasonic type coil center position detection device,
The position of the coil is detected by the phototube type position detection device using a reflective plate attached to the loading platform of the coil transport vehicle that indicates the proposed coil position, and by the ultrasonic type coil width direction center position detection device. By detecting the distance between the self-propelled scanning detector and the coil, the center in the width direction of the coil is detected from the coil dimensions given in advance by the control device. It may be provided in the type scanning detection device or the above-mentioned overhead crane, or it may be provided in the control device.

During unloading of the coils, the overhead crane is activated by an operation command from the control device that receives a command from the loading/unloading command device, and is activated by a signal from the self-propelled scanning detection device that has previously detected the coil guiding position of the coil transport vehicle. Accordingly, the coil is transported from a predetermined location onto a coil transport vehicle. Next, preferred embodiments of the present invention will be described.

In FIG. 1, P,, P2, . . . , Pn represent a large number of addresses N, . , N, 2...N, n,..., Nn.・”
,N skin. Reference numeral 8 denotes a self-propelled scanning detection device that detects the position of the coil loaded on the coil carrier 5 and the center position of the coil for loading and unloading the coil from the coil carrier 5, and 9 indicates the self-propelled scanning detector. 8 is a track for running inside the warehouse.

14 is an unmanned overhead crane equipped with an arithmetic and control device and is operated by radio; 16 is a passageway for a coil transport vehicle; 17 is a control device such as an electronic computer; 18 is a warehousing/exit command device;
In addition to detecting the arrival or departure of the coil transport vehicle 5,
The detection signal is sent to the control device 17.

The entry/exit command device 18 is an electrical method such as a detection means using a phototube or a relay, a combination of a mechanical method and an electrical method using a contact mechanism, a switch operation by the operator of the coil transport vehicle 5, or a command card. Various embodiments such as various electrical operation devices can be adopted.The control device 17 receives various coil information from the previous process, that is, the production line, such as steel type, dimensions, direction, etc. The storage information is stored in advance and compared with the storage conditions of the warehouse, such as storage priority conditions determined for each steel type, current size, or destination, and storage conditions that change depending on the storage period or change, and then 18
In response to the detection signal, commands are given to the overhead crane 14 to carry out and carry in and out coils from the warehouse, and this point will be explained in more detail. When the coil transport vehicle 5 shown in FIG. 2 is carried into the warehouse 50 shown in FIG. 1 and arrives at the designated yard,
Arrival information is transmitted to the control device 17 by the warehousing/unloading command device 18 as described above.

Upon receiving the arrival information, the control device 17 gives a start command to the self-propelled scanning detection device 8, and at the same time, starts the overhead crane 1.
The information on the position where the stock should be stored is transmitted to the arithmetic and control unit No. 4.
If a startup command is given to the self-propelled scanning detection device 8,
The self-propelled scanning detection device 8 shown in FIG. 3 starts running. At this time, as shown in FIG. 2, if a reflective plate, for example, a reflective tape 4 is pasted on the side surface 5a of the coil transport vehicle 5 at a position where the coil is guided, that is, at a position that coincides with the vertical direction, the self-propelled When the phototube type position detector 21 provided in the type scanning detection device 8 (hereinafter simply referred to as the detection device) captures the reflective tape 4, the detection device 8
will stop at that position and know the position of the coil.

Next, the ultrasonic type coil width direction center position detection device 19 mounted on the detection device 8 is activated, and the distance between the detection device 8 and the coil 3 is measured. This is because the coil 3 carried on the coil transport vehicle is not always placed in a fixed position, and the dimensions of the coil 3 vary, so the coil required for the overhead crane 14 to grab the coil is This is because the center position in the width direction always changes. Now, the detection device 8
When the distance between the coil 3 and the coil 3 is known, the control device 17 contains the information on the coil being softened on the coil carrier 5, so the center position in the width direction of the coil can be easily determined by calculation, and the center position of the coil in the width direction can be easily determined. The location where the overhead crane 14 should arrive, that is, the optimal position command for loading and unloading the coil 3 is given. Now, ceiling crane 1
4 receives the command via the on-board arithmetic and control device, and also uses the information of the coil position on the coil carrier 5 transmitted from the self-propelled scanning detection device 8 to detect the position of the coil on the coil carrier 5. As described above, the coil 3 is moved to the center position of each coil 3 located there, grasps the coil 3, and stores the coil 3 in the storage location.

In FIG. 2, 6 indicates a support for the coil 3.

Further, 33 is a set position of the coil transport vehicle 5 in order to measure the separation distance between the detection device 8 and the coil transport vehicle 5 by the coil width direction center position detection device 19 when the coil 3 is placed on the coil transport vehicle 5. 2 represents the tires of the coil transport vehicle. Next, the self-propelled scanning detection device 8 will be explained in more detail using FIG. 3.

In FIG. 3, a support column 41 mounted on a four-carriage truck with wheels 24 is vertically extendable and retractable via a handle 23, and a phototube type position detector 21 is mounted on the lower stage, and the center position in the coil width direction is mounted on the upper stage. It has a detection device 19.

21a and 21b are the phototube type position detection devices 2.
1 is a light projecting section and a light receiving section, respectively, and 19a and 19b are a wave transmitting section and a wave receiving section of the coil width direction center position detecting device 19 of an ultrasonic type. The detection device 8 moves freely on the track 9 by means of a drive device via a mirror electrical equipment layer (not shown), scans the coil 3 and scans the reflective tape 4 to determine the coil design as described above. The battle position and the separation distance from the coil 3 are measured and the signal is sent to the control device 17.
Send to. Next, FIG. 4 shows a schematic perspective view of an apparatus according to an embodiment of the present invention.

As for the overhead crane 14, the girder that supports it and its traveling wheels are omitted, but as mentioned above, when it receives a command signal from the control device i7 and comes to the loading/unloading position of the coil 3, the coil tongs move. 7 is lowered and the coil 3 is lifted up and transported to a predetermined location. In this case, if the addresses of the plane yards are set according to the multi-stage stacking, it is possible to stack the coils in multiple stages as in the case of coils 3' to 3-3 in FIG.
That is, as shown in FIG. 5, it is possible to store a large number of coils 3. That is, the apparatus of the present invention has a remarkable feature in that it can easily perform such multi-tiered stacking and improve storage efficiency.

In addition, in FIG. 4, 10 is a drum, 11 is a traverse motor,
Reference numeral 12 schematically shows a travel motor, and 13 a drive motor for the drum 10. As explained in detail above, the present invention is extremely economical as it can efficiently store heavy coils such as strip steel plates and save labor, and can be easily adopted in remodeling existing warehouses. It is rich in practical value.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of an embodiment of the device according to the present invention, FIG. 2 is a schematic side view of a coil transport vehicle, FIG. 3 is a schematic perspective view of a self-propelled scanning detection device, and FIG. FIG. 5 is a schematic explanatory perspective view of the embodiment device, and FIG. 5 is an explanatory diagram of multi-stage stacking of coils. 5... Coil transport vehicle, 8... Self-propelled scanning detection device, 9... Track, 14... Overhead crane, 17... Control Device, 18...
Input/output command device. Figure 1 Figure N Ship diagram Figure 3 Figure 4

Claims (1)

[Claims] 1. Detect the coil loading position and coil center position by scanning a coil transport vehicle that is movably mounted on a track laid down along the coil goods loading/unloading route in the warehouse and has a coil loading position marker. a self-propelled scanning detection device for loading and unloading coils on a coil transport vehicle in accordance with input signals from the self-propelled scanning detection device; An automated warehouse for coils, comprising a control device which, in response, gives a scanning command to the self-propelled scanning detection device, and also commands the overhead crane to store or take out a storage lot address in the warehouse.