JPH0577564B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an automatic warehouse that handles cargo that must be stored in a high temperature atmosphere of, for example, 60 degrees Celsius or higher.

Conventional technology A conventional automated warehouse is equipped with a shelf that has a plurality of divided storage spaces in the vertical and horizontal directions that can freely store multiple loads in the depth direction, and a loading and unloading device is disposed on the front side of the shelf so that it can move freely. At the same time, this loading/unloading device is provided with a lifting platform having a loading/unloading tool that can be moved in and out. Then, by automatic control, by performing a combined operation of the running action of the loading/unloading device, the lifting/lowering movement of the lifting platform, and the moving/retracting movement of the loading/unloading tool, a loading/unloading area provided outside the shelf,
Loads are transferred to and from the target compartment storage space. At this time, a cargo presence detection device is installed at the end of the lifting platform to detect whether there is a load in the divided storage space. Detection prevents double import. Conventionally, the presence detection device uses ultrasonic sensors and photoelectric switches that act directly on the load, and these detect the presence or absence of the load, as well as the position in the depth direction. .

Problems to be Solved by the Invention According to the above-mentioned conventional method, when used in a high temperature room of 60 degrees or higher, the presence detection device may be deformed or damaged due to the high temperature, resulting in a malfunction in the intended presence detection. will occur.

The object of the present invention is to provide an automatic warehouse that can always and reliably detect the presence of goods even in a high-temperature atmosphere, and that can easily and repeatedly check whether the detection operation is being performed correctly. It is in the point of providing.

Means for Solving the Problems In order to achieve the above object, the automated warehouse of the present invention provides shelves having a plurality of storage spaces in the horizontal direction in a high-temperature room, and a material handling area adjacent to the high-temperature room. In front of the shelf, there is provided a loading/unloading device that can move freely between the two rooms, and this loading/unloading device includes a lifting platform and a loading/unloading device provided on the lifting platform so as to be able to move in and out laterally. A load detecting device for detecting loads in the divided storage space is provided on the lifting platform, and an inspection device for the load detecting device is provided in the room temperature room.

According to the configuration of the present invention, the target compartment storage space and cargo handling area are moved by the combined operation of the running action of the loading/unloading device, the up/down movement of the lifting platform, and the lateral movement of the loading/unloading tool. Cargo can be delivered to and from. When entering the warehouse, by facing the intended compartment storage space with the lifting platform, it can be confirmed whether or not the cargo is in stock using the stock detection device. The loading/unloading device that exits from the high-temperature room to the room-temperature room transfers cargo to and from the cargo handling area. Then, at this material handling area (home position), the inspection device inspects the presence detection device, and it is determined whether or not this presence detection device has been damaged by the high temperature. It is confirmed whether or not it can be performed accurately.

Embodiment An embodiment of the present invention will be described below based on the ground.

Reference numeral 1 denotes a shelf having a plurality of compartment storage spaces 2 in the vertical and horizontal directions, and is composed of vertical frames 3 erected at predetermined intervals, cargo receiving plates 4 attached to the inner surfaces of these vertical frames 3, etc. 5 are placed in parallel. The divided storage space 2 is in the depth direction,
In order to store a plurality of loads, here two roll bodies 6, two load receiving devices 7A and 7B are arranged in the depth direction on each load receiving plate 4, so that two loads can be stored in the depth direction. Storage areas 8A and 8B are formed.
The roll body 6 is made up of a core material 6a and a roll material 6b, and a cargo receiver 7 is provided to receive both ends of the core material 6a.
The upper surfaces of A and 7B are formed into V-shaped receiving surfaces.
In the passageway 5, a loading/unloading device 10 is provided which can freely travel on a fixed path 9 along the front surface of the shelf 1. This loading/unloading device 10 includes a traveling body 15 supported and guided by a floor rail 11 via wheels 12 and guided by a ceiling rail 13 via wheels 14, and a traveling drive device 1 interlocked with the wheels 12.
6, a lifting platform 18 guided by a post 17 on the traveling body 15 side, a lifting drive device 19 interlocked with this lifting table 18, and a multistage fork-type fork provided on the lifting table 18 so as to be movable laterally. Insertion and removal tool 20
And, the roll center 6 erected on this loading/unloading tool 20
It is composed of the support 21 of c. The protrusion stroke (protrusion amount) of the loading/unloading tool 20 is a long stroke S ₁ reaching the innermost part of the compartment storage space 2
and a short stroke S2 reaching half of the divided storage space ₂ are set so as to be controllable in two stages (multiple stages). On the bottom plate of the lifting platform 18, first photoelectric switches 22 of a retroreflective type are provided at both ends of the loading/unloading tool 20 in the moving direction. These first photoelectric switches 22 are mounted via brackets 23 at the central portions in the direction of the fixed path 9. At this time, the direction of the optical axis 22a is such that when the lifting platform 18 is made to correspond to the intended divided storage space 2, the direction of the optical axis 22a is opposite to the surface of the rolled object 6b in the rolled object 6 stored in the front cargo storage area 8A, Moreover, it is set so as to face the roll center 6c. This allows the first photoelectric switch 22 to directly detect the roll body 6 in the front cargo storage area 8A. On both sides of the bottom plate of the lifting platform 18, a second photoelectric switch 2 is installed at one end and the other end in the direction of the fixed path 9.
4 is provided via a bracket 25. The direction of the optical axis 24a of these second photoelectric switches 24 is set so as to face the exposed portion of the core material 6a of the roll body 6 stored in the inner load storage area 8B and to face the roll core 6c. Note that at least the exposed surface of the roll core 6c is black, silver, etc., and may or may not be glossy. And compartment storage space 2
At the innermost part of the mirror 2, the optical axis 24a can collide freely.
6 is provided, and this mirror 26 is attached to the load receiving plate 4 via a bracket 27. This allows the second
The photoelectric switch 24 cooperates with the mirror 26 to detect the roll body 6 in the rear cargo storage area 8B, but when the reflected light enters, there is no cargo, and when the reflected light does not enter, it detects the roll body 6. It is set so that it will be in stock at (details will be described later). These photoelectric switches 22 and 24 constitute a presence detection device. A cargo handling area 30 is provided outside one end of the shelf 1. These cargo handling areas 30 have a machine frame 33 consisting of vertical members 31 erected at predetermined intervals and an upper member 32 connecting the upper ends of these members.
3 are provided as a pair with the constant path 9 interposed therebetween.
Temporary load receivers 34A and 34B having the same shape as the load receivers 7A and 7B in the partitioned storage space 2 are provided on the upper member 32. The upper member 3
2 is the level of the upper floor 35, and this upper floor 3
The roll body 6 is temporarily moved between the load receiving devices 34A and 34B by a self-propelled trolley (not shown) or the like that can freely run the roll body 5.
will be delivered. Below the upper member 32 in the cargo handling area 30 is an inspection device 3 for detecting the presence of cargo.
6 is provided. That is, a position slightly shifted from the delivery position 37 in the cargo handling area 30 is set as the home position 38. When the loading/unloading device 10 is stopped at this home position 38, the optical axis 22a of the first photoelectric switch 22 is
A first mirror 39 is provided opposite to the first mirror 39, and this first mirror 39 is attached to the front vertical member 31 via a bracket 40. A second mirror 41 facing the optical axis 24a of the second photoelectric switch 24 is provided, and the second mirror 41 is attached to the vertical member 31 at the back via a connecting member 42 and a bracket 43. On the lower floor, the shelf 1 and the material handling area 30 are surrounded by a surrounding wall 45, and the shelf 1 and the material handling area 30 are separated by a partition wall 46, and a certain path is provided through the partition wall 46. 9 is formed, and an automatic door 48 is provided in this communication path 47. Said cargo handling area 3
The upper part on the 0 side is open and forms a room temperature room 49. Further, the upper part on the side of the shelf 1 is closed by a ceiling wall 50, thereby forming a high temperature room (constant temperature room) 51 at, for example, 80 degrees.

Next, the operation of the above embodiment will be explained.

First, referring to the warehousing operation, the roll body 6 is transported to the cargo handling area 30 by a self-propelled cart or the like, and placed on the temporary cargo receivers 34A, 34B via the core material 6a. At this time, the loading/unloading device 10 enters the room temperature room 49 and is stopped facing the delivery position 37. In this state, a combined operation (fork operation) of the vertical movement of the lifting platform 18 and the lateral movement of the loading/unloading tool 20 is performed to move the support 21 to the core material 6a.
Then, the roll body 6 consisting of the temporary load receiving tools 34A and 34B is received via the loading/unloading tool 20 and placed on the lifting platform 18. At this time, two roll bodies 6 are received by operating the loading/unloading tool 20 with a long stroke _S1 , and one roll body 6 is received by operating with a short stroke _S2 . It turns out.

Next, the loading/unloading device 10 is moved a little and stopped at the home position 38 as shown by the imaginary line in FIG. 1, and then both the photoelectric switches 22 and 24 are activated. Then, the optical axis 22a from the first photoelectric switch 22 hits the first mirror 39, and the reflected light enters the first photoelectric switch 22. Further, the optical axis 24a from the second photoelectric switch 24 hits the second mirror 41, and the reflected light is transmitted to the second photoelectric switch 2.
It will be in number 4. In this manner, each reflected light reaches the corresponding photoelectric switch 22, 24 and turns on, thereby confirming that these photoelectric switches 22, 24 are normal. However, when one or both of the photoelectric switches 22, 24 do not switch on, the optical axes 22a, 24 from these photoelectric switches 22, 24
The direction of a is disturbed and it does not hit the mirrors 39 and 40.
Alternatively, the photoelectric switches 22 and 24 may be damaged and cannot emit or receive light, and thus the abnormality of these photoelectric switches 22 and 24 can be confirmed. When an abnormality is confirmed, the operation of the loading/unloading device 10 is stopped, and both photoelectric switches 22 and 24 are repaired. After confirming the above-mentioned normality or after repair, the loading/unloading device 10 is run,
Then, by opening the automatic door 48, the user enters the high temperature room 51 through the communication path 47. Note that the automatic door 48 is closed at the same time as the loading/unloading device 10 enters the high temperature room 51.

The loading/unloading device 10 that has entered the high-temperature room 51 can cause the lifting platform 18 to face the intended storage space 2 by a combination of its running action and the lifting and lowering movement of the lifting platform 18. At this time, for example, the fourth
As shown in FIG. 5, it is assumed that two roll bodies 6 are stocked in the divided storage space 2. Then the first
The optical axis 22a of the photoelectric switch 22 hits the outer surface of the roll body 6 stored in the front load storage area 8A, and the reflected light enters the first photoelectric switch 22 and switches on. You can check the inventory in the front cargo storage area 8A. At this time, the optical axis 22a swings due to the high temperature atmosphere, but since the detection distance l is short, the swing is small and the reflected light enters the first photoelectric switch 22 without fail. At the same time as this inventory check, the second
The optical axis 24a of the photoelectric switch 24 hits the outer surface of the core material of the roll body 6 stored in the inner cargo storage area 8B and is reflected. At this time, the optical axis 24a swings due to the high temperature atmosphere, and furthermore, because the detection distance L is long, the optical axis 24a swings significantly. Therefore, the optical axis 24a hits a position shifted from a predetermined position on the roll center 6c, and since the roll center 6c is an arcuate surface, the reflection angle is further disturbed.
The second photoelectric switch 24 will not be activated. Here, since it is set to detect the presence of goods when no reflected light enters, it is possible to confirm the presence of goods in the inner goods storage area 8B. By such a detection movement, it is possible to confirm the presence of cargo in both cargo storage locations 8A and 8B, thereby preventing double loading by the loading/unloading device 10.

When the divided storage space 2 facing the lifting platform 18 is absent, the optical axis 22 of the first photoelectric switch 22
Since the light a passes toward the back, no reflected light is generated and the first photoelectric switch 22 is not turned on, it can be confirmed that the front cargo storage area 8A is not present. Further, the optical axis 24a of the second photoelectric switch 24 passes toward the inner part, hits the mirror 26, and is reflected. At this time, the optical axis 24a is deflected due to the high temperature atmosphere, and due to the long distance La, the optical axis 24a is deflected significantly, but since it is a mirror 26, the reflection angle is not greatly disturbed, and therefore the deflection is within the allowable range. It enters the second photoelectric switch 24 and turns on. This allows confirmation of the absence of the back cargo storage area 8B.

Due to this detection movement, both cargo storage locations 8A,
If you can confirm the absence of 8B, insert/remove tool 20
The two roll bodies 6 can be stored by the long stroke _S1 . Further, if it is confirmed that only the front cargo storage area 8A is absent, one roll body 6 can be stored by operating the loading/unloading tool 20 with a short stroke _S2 . In addition, storage is performed by a combination of the lifting/lowering movement of the lifting platform 18 and the moving/retracting movement of the loading/unloading tool 20.

The unloading is performed by a reverse action to that described above, and the roll bodies 6 in the target compartment storage space 2 are transferred to the handling area 3.
It will be extracted to 0.

Effects of the Invention According to the present invention having the above configuration, by operating the loading/unloading device, it is possible to transfer cargo between the compartmentalized storage space targeted by the shelf in the high temperature room and the cargo handling area in the room temperature room. can. By arranging the lifting platform to face the intended compartmented storage space for warehousing, the inventory detection device can confirm whether or not the inventory is in stock, thereby preventing double loading. When the loading/unloading device is placed opposite the loading/unloading area (home position) in a room temperature room, the detection device can inspect the loading/unloading device and determine whether the loading/unloading device is damaged due to high temperature. You can check whether the following work in the high temperature room can be performed accurately. Moreover, this inspection (confirmation) can be easily performed many times each time the loading/unloading device comes to the loading/unloading area.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a cross-sectional view, FIG. 2 is a partially cutaway front view, FIG. 3 is a partially cutaway side view, and FIG. 4 is a main part showing the operation. FIG. 5 is a front view of the same main part. DESCRIPTION OF SYMBOLS 1... Shelf, 2... Compartmented storage space, 6... Roll body (cargo), 10... Loading/unloading device, 18... Elevating platform, 20... Loading/unloading tool, 22... First photoelectric switch, 22a... ...Optical axis, 24...Second photoelectric switch, 24a...Optical axis, 26...Mirror, 30...Cargo handling area, 34A, 34B...Temporary cargo receiver, 36
...Inspection device, 37...Delivery position, 38...
Home position, 39...First mirror, 41...Second mirror, 47...Communication path, 48...Automatic door, 49...
...Normal room, 51...High temperature room.

Claims (1)

[Claims] 1. A shelf with a plurality of storage compartments in the horizontal direction is provided in the high temperature room, and a room temperature room with a cargo handling area is provided adjacent to the high temperature room, and a shelf that can freely run between the two rooms in front of the shelf is provided. A loading/unloading device is provided, and the loading/unloading device includes a lifting platform and a loading/unloading tool provided on the lifting platform so as to be able to move in and out in a lateral direction, and the loading/unloading device includes a device for detecting loads in the compartment storage space on the lifting platform. 1. An automatic warehouse comprising: a stock presence detection device for detecting cargo presence; and an inspection device for the stock presence detection device provided in the room temperature room.