JPH02158501A - Automatic housing warehouse - Google Patents

Abstract

PURPOSE:To improve the efficiency of housing at a stacker crane type three dimensional warehouse, by providing at each housing chamber fine pitched parts, and detecting the height of a work on a carrying in conveyer by means of a level sensor, and arranging so that the ascent/descent of a stacker crane may be controlled according to a detection result. CONSTITUTION:The maximum height of a work W mounted on a pallet 5 transported on a transport conveyer 9 is detected by means of a level detection sensor 11, and an input is made into a shelf reference controller 12. The shelf reference controller 12 operates in addition and subtraction the heights of respective housing chambers 10 according to the height of the work W, and the ascending/descending motion of the ascent/descent body 8 of a stacker crane 6 is controlled. And, the work W is housed at fine pitched parts 4a, 4b at a housing chamber 10 together with the pallet 5 from the stacker crane 6 ascended/descended to a predetermined height. As a result, a wasteful space is gotten rid of, and the efficiency of housing can be improved.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention is directed to, for example, storing workpieces (cargos) of different heights (sitting heights) on high-rise racks in a multi-story warehouse while reducing wasted space. This invention relates to a stacker crane type automatic storage warehouse.

(Prior Art) This type of stacker crane type automatic storage warehouse that has already been proposed is configured as shown in FIG.

That is, in FIG. 2, a high-rise rack 1 installed in a three-dimensional warehouse 8 is formed with a large number of partition frames 2 that divide the width of a storage chamber 3 at regular pitch intervals. 3
The pallets 4a and 4b are provided at a constant pitch so as to horizontally hold each pallet 5 on which a workpiece (cargo) W is placed. Further, a well-known stacker crane 6 is provided in the vicinity of the storage room 3 formed by the high-rise rack 1 so as to be movable along a rail. That is, this stacker crane 6 has a hoist attached to the upper part of a mast (elevating column) 7, and a fork (not shown) is attached to this mast 7.
An elevating body 8 equipped with the above-mentioned hoisting machine is provided so as to be able to be raised and lowered by a hanging lobe of the hoisting machine. Furthermore, the stacker crane 6
A carry-in conveyor 9 is installed near the stacker crane 6 to convey the workpieces W placed on each pallet 5. It is delivered and received by the body 8 and attached to the predetermined crosspieces 4a and 4b of each storage chamber 3 for storage.

Therefore, in the above-mentioned stacker crane type automatic storage warehouse, each pallet 5 on which the workpieces W are placed is conveyed in advance to a predetermined position by the carry-in conveyor 9 and then stopped. Then, the stacker crane 6 transfers and receives each pallet 5 using an elevating body 8 equipped with a fork, and lifts and lowers each pallet 5 using the hoisting lobe of the hoisting machine, and also moves the stacker crane 6 along the rail to store it in the predetermined position. The work W is stored in the chamber 3 together with each of the pallets 5.

(Problem to be Solved by the Invention) However, each storage chamber 3 of the stacker crane type automatic storage warehouse described above has crosspieces 4 having a constant coarse pitch interval.
Each pallet 5 with workpieces (cargo) W placed on a and 4b is held horizontally, and the height of the storage chamber 3 is defined based on the maximum height of the workpiece W, so the height is low. Work W
When a large amount of storage space is stored, there is a problem that a large amount of wasted space is created in the storage chamber 3, which reduces storage efficiency.

The present invention has been made in view of the above-mentioned circumstances, and detects the height of each storage chamber with a level detection sensor so that the height of each storage chamber can be adjusted freely according to the height of the workpiece (load) W. To provide an automatic storage warehouse that eliminates a large amount of wasted space indoors and improves storage efficiency.

[Structure of the invention]

(Means for Solving the Problems and Their Effects) The present invention provides the above-mentioned multi-story warehouse in which a stacker crane is movably provided near a storage room with high-rise racks, and a carry-in conveyor is provided for delivering and receiving workpieces to the stacker crane. Each crosspiece with a fine pitch is attached to the storage room, a level detection sensor is installed on the path of the above-mentioned carry-in conveyor to detect the height of the workpiece, and this level detection sensor is connected to a shelf search control device, and this shelf search is performed. The stacker crane is connected to a control device so as to control the lifting operation according to the height of the workpiece, the height of the workpiece is detected by the level detection sensor, and the detection signal from the level detection sensor is sent to the shelf. The shelf search control device controls the vertical movement of the stacker crane according to the height of the workpiece, and freely adjusts the height of each storage chamber according to the height of the workpiece. , the storage efficiency is improved by eliminating wasted space within the storage chamber.

(Example) Hereinafter, the present invention will be described with reference to an illustrated embodiment.

Note that the present invention includes the same constituent members as those in the above-mentioned specific example.
The same reference numerals will be used to explain.

In FIG. 1, reference numeral 1 denotes a high-rise rack installed in a multi-story warehouse, and this high-rise rack 1 has a large number of partition frames 2 formed by dividing the width of a storage room 10 at regular pitch intervals. In each storage chamber 10, there are crosspieces 4a and 4b with relatively small and constant pitches for storing workpieces (cargos).
It is attached so that each pallet 5 on which W is placed is held horizontally. Further, a well-known stacker crane 6 is provided near each storage room 10 formed by the high-rise rack 1 so as to be movable along a rail. That is, this stacker crane 6 has a hoisting machine attached to the upper part of a mast (elevating column) 7, and lifts and lowers an elevating body 8, which is equipped with a fork (not shown) on the mast 7, using a hanging lobe of the hoisting machine. It can be set freely.

Further, in the vicinity of the stacker crane 6, a horizontal carry-in conveyor 9 is installed to convey the work W placed on each pallet 5, and each pallet 5 of this conveyor 9 is transferred to the stacker crane 6. It is delivered and received by an elevating body 8 equipped with a fork of a crane 6, and is installed and stored in the predetermined crosspieces 4a and 4b of each storage chamber 10.

On the other hand, a level detection sensor 11 is installed upright on the path of the conveyor 9 to detect the highest height of the workpiece W, and a plurality of level detection sensors 11 are installed in the vertical case body 11a. The photodetection sensors 11b are arranged in a row at a constant pitch.

Therefore, when the workpiece W passes on the path of the conveyor 9, the level detection sensor 11 detects the maximum height of the workpiece W.

On the other hand, a shelf search control device 12 is connected to this level detection sensor 11 so as to freely control the height of each storage chamber 10 according to the height of the workpiece W. The control device 12 includes the stacker crane 6
is connected. That is, the shelf search control device 12 controls the vertical movement of the stacker crane 6 according to the height of the work W, and the height of each storage chamber 10 can be freely adjusted according to the height of the work W. The storage chamber 10 is controlled to eliminate wasted space in the storage chamber 10 and improve storage efficiency.

Therefore, when the workpiece W passes on the path of the conveyor 9, the level detection sensor 11 detects the workpiece W.
Find the highest height of. Then, this level detection sensor 11 inputs the detection signal of the highest height of each workpiece W to the shelf search control device 12, and adjusts the height of each storage chamber 10 according to the height of each workpiece W. Control by adding or subtracting calculations. The shelf search control device 12 transmits a control signal to the stacker crane 6, and controls the lifting and lowering of the lane 6 to the stacker in accordance with the height of the work W. Furthermore, the stacker crane 6 that has delivered and received the work W from the transfer conveyor 9 moves along the rails to store the work W in the predetermined storage chamber 3 together with each of the pallets 5, The height of each storage chamber 10 is adjusted according to the height of the workpiece W, thereby eliminating wasted space within the storage chamber 10 and improving storage efficiency.

〔Effect of the invention〕

As described above, according to the present invention, in a three-dimensional warehouse in which a stacker crane 6 is movably provided near a storage room 10 with a high-rise rack 1, and a carry-in conveyor 9 for delivering and receiving workpieces W to this stacker crane 6 is provided, Each crosspiece 4a, 4b with a fine pitch is attached to the storage chamber 10, a level detection sensor 11 is provided on the path of the carry-in conveyor 9 to detect the height of the work W, and this level detection sensor 11 is installed on a shelf. The stacker crane 6 is connected to a search control device 12, and the stacker crane 6 is connected to the shelf search control device 12 so as to control the lifting and lowering operation according to the height of the workpiece W, and the height of the workpiece W is detected at the level. The level is detected by the sensor 11, and the detection signal from the level detection sensor 11 is sent to the shelf search control device 12, and the shelf search control device 12 controls the vertical movement of the stacker crane 6 according to the height of the workpiece W. As a result, the height of each storage chamber 10 can be freely controlled according to the height of the workpiece W, so that not only can a large amount of wasted space be eliminated within the storage chamber 10, but also storage efficiency can be improved. In addition, since the structure is simple, it has excellent effects such as easy maintenance and inspection.

[Brief explanation of the drawing]

FIG. 1 is a diagram of an automatic storage warehouse according to the present invention, and FIG. 2 is a diagram of an automatic storage warehouse that has already been proposed. 1... High-rise rack, 2... Partition frame, 4a, 4b...
- Crosspiece, 5... Pallet, 6... Stacker crane, 7... Mast, 8... Getting on/off object, 9... Loading conveyor, 10... Storage room, 11... Level detection Sensor, 12...shelf search control device.

Claims (1)

[Claims] In a multi-level warehouse in which a stacker crane is movably installed near a storage room with high-rise racks, and a carry-in conveyor is installed to transfer workpieces to and from the stacker crane, the storage room is equipped with crosspieces with fine pitches, and the load-in conveyor A level detection sensor is installed on the passage to detect the height of the workpiece, and this level detection sensor is connected to a shelf search control device, and the shelf search control device raises and lowers the stacker crane according to the height of the workpiece. An automatic storage warehouse characterized by being connected so as to control its operation.