JPH10245106A - Storing method for material on shelf in multi-tier warehouse and multi-tier warehouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent materials from falling due to a one-sided load, to correct the storage and the unloading of the materials by means of a crane. SOLUTION: Plural-staged storage shelves 11 are provided at the both sides of multi-tier shelves 3 provided in a multi-tier warehouse 1 for storing materials. An inclination detector 39 for detecting the inclination of supports 6 constituting the multi-tier shelves 3 to a crane 5 traveling by straddling the multi-tier shelves 3 is provided. Detecting the tip positions of the supports 7 by means of the inclination detector 39, the maximum deflection of the multi-tier shelves 3 caused by a one-sided load can be detected to issue a warning and to replace storage. Thus, the materials are prevented from falling due to the one-sided load. The maximum deflection is used as a correction value in storing or unloading the materials by means of an automatic crane.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for storing materials on shelves in a three-dimensional warehouse and a three-dimensional warehouse.

[0002]

2. Description of the Related Art Conventionally, for example, when storing materials in storage shelves in a three-dimensional warehouse storing long materials, a method of calculating the weight of the materials by a computer and storing the materials in the storage shelves so as not to be unloaded. Is generally adopted.

[0003]

In the above-described conventional method of storing materials in storage shelves in a three-dimensional warehouse, the operator inputs the diameter, length, and the like of the materials stored in the storage shelves to a computer. For this reason, there is a problem that when stored in the storage shelf due to an input error or the like, the material is unloaded and the material is dropped.

An object of the present invention is to provide a method for storing materials on shelves in a three-dimensional warehouse and a three-dimensional warehouse in which a material can be prevented from falling due to a single load, and the material can be stored and taken out by a crane. It is in.

[0005]

According to a first aspect of the present invention, there is provided a method for storing materials on shelves in a three-dimensional warehouse, comprising: (A) a three-dimensional warehouse having storage shelves on both sides provided in the three-dimensional warehouse; A pillar reference position measuring step of measuring a reference position of a tip end of a pillar constituting the three-dimensional shelf with an inclination detector provided on a crane traveling in a manner straddling the three-dimensional shelf when no material is stored in the shelf. (B) After the materials are stored in the three-dimensional shelf, the tip position of the column of the three-dimensional shelf is detected and measured by an inclination detector provided in the crane, and the measured value and the reference position measured in the column standard position measuring step are measured. Comparing the measured value with the measured value, and if the comparison value is within the allowable value, continuing the material storing operation; (C) storing the material on the three-dimensional shelf, and then performing a three-dimensional Shelf post The position is detected and measured, the measured value is compared with the reference position measured value measured in the support column reference position measuring step, and if the comparison value is out of the allowable value, a material storage non-notifying step to issue an alarm, (D) a material storage position changing step of storing the material on the opposite side of the storage shelf provided on the three-dimensional shelf when the storage of the material is disabled in the material storage disabled notification step. It is characterized by the following.

According to a second aspect of the present invention, there is provided a three-dimensional warehouse, comprising a three-dimensional shelf provided with a plurality of storage shelves for storing materials, and a crane having a position detector traveling over the three-dimensional shelf. And the crane is provided with an inclination detector for detecting the inclination of the column constituting the three-dimensional shelf.

Therefore, the method for storing materials on the shelves in the three-dimensional warehouse and the three-dimensional warehouse according to the first and second aspects of the present invention allow the crane to run over the three-dimensional shelf, and the position detector detects the position of the crane. Is measured.
Moreover, the inclination (deflection amount) of the three-dimensional shelf is detected and measured by a single load by detecting the tip position of the column constituting the three-dimensional shelf using an inclination detector provided on the crane. When the measured value exceeds the allowable value, a warning is issued and a material storage warning is issued on the opposite side of the three-dimensional shelf.

Thus, the material can be prevented from dropping due to a single load on the three-dimensional shelf, and can be used as a correction value when the material is stored and taken out by the crane.

According to a third aspect of the present invention, in the three-dimensional warehouse according to the second aspect, the tilt detector is constituted by a non-contact type detector.

Therefore, by using the non-contact type detector as the tilt detector, there is no possibility that the tilt detector is brought into contact with an object and damaged.
Accurate detection can be performed.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

Referring to FIG. 1, FIG. 2 and FIG. 3, FIG. 1 and FIG. 2 show the overall configuration of a three-dimensional warehouse. The three-dimensional warehouse 1 includes a plurality of three-dimensional shelves 3 and a crane 5 that can move in the left-right direction (the left-right direction in FIG. 1 and the direction perpendicular to the drawing in FIG. 2) in a state of straddling the three-dimensional shelves 3. It is composed of

The three-dimensional shelf 3 is provided with a column 7 standing on the floor.
A storage shelf 11 constituted by a plurality of support arms 9 vertically arranged on both sides of the storage arm 11 is provided. In the storage shelf 11, a plurality of materials such as a round bar,
Shape steel etc. are stored.

The crane 5 includes a gantry 13 provided on the floor.
A rail 15 extending in the left-right direction is laid on the crane main body 19 via a plurality of wheels 17 on this rail 15.
And the crane body 19 is movable in the left-right direction.

The crane main body 19 has a portal shape so as not to interfere with the column 7, and a traveling motor 21 is provided on an upper frame 19A of the crane main body 19, and rotation is transmitted from the traveling motor 21. The wheel 17 is rotated via a member 23 (a rotating shaft and a bevel gear or the like), and the crane 5 is moved in the left-right direction. The traveling motor 21 has an encoder E as a position detector, and constantly detects the position of the crane 5.

The side frame 19B of the crane body 19
A lift motor 29 for raising and lowering a lifter beam 27 having a lifter arm 25 is provided on one side. Then, the drum 33 is rotated by the lifting / lowering motor 29 via the rotation transmitting member 31 (the pulley and the chain).
3 is connected to the lifter beam 27 at one end.
It is connected to.

With the above configuration, when the lifting motor 29 is rotated, the drum 33 is rotated, and the wire 35 is wound and unwound by the drum 33, whereby the lifter beam 27 is raised and lowered.

The lifter arm 25 provided on the lifter beam 27 has a pinion 37 rotated by a motor (not shown), and a rack (not shown) engaged with the pinion 37.
Is provided on the lifter arm 25, and the lifter arm 25 is moved in the left-right direction by driving the motor. Therefore, the material supported on the lifter arm 25 can be transferred onto the support arm 9, and the material supported on the support arm 9 can be transferred onto the lifter arm 25.

Next, the tilt detector 39, which is a main part of the present invention, is a non-contact type detector and a transmission type photoelectric switch 41.
A, 41B.

More specifically, transmission type photoelectric switches 41A and 41, which are tilt detectors 39, are mounted on brackets 43 hanging from both lower sides of the upper frame 19A of the crane body 19.
B is provided and the optical axis S passes through (see FIG. 2).

According to the configuration as described above, the effect thereof is as follows when an empty cargo is loaded, that is, when the support arm 9 of the storage shelf 11 is used.
When there is no material at all, the photoelectric switch 41A, 41B as the tilt detector 39 causes the reference position K
Is measured. This measurement is performed by the encoder E of the position detector when the crane 5 is traveling.

After the materials are stored in the storage shelf 11,
The photoelectric switch 41A, 41B, which is the tilt detector 39 attached to the crane 5, detects the reference position K of the support 7 and
If the detected value is within the preset allowable value, the material delivery work is continued. However, if it is out of the allowable range, an alarm is issued. Then, the material is stored again in the storage shelf 11 on the opposite side.

Therefore, the material can be prevented from falling due to a single load, and can be used as a correction value when the material is stored and taken out by the automatic crane.

In FIG. 4, a proximity switch 45 is provided on the sensor bracket 47 as the tilt detector 39. With the above configuration, the support 7 is
After the reference position K is measured and the material is stored in the storage shelf 11, the reference position is detected by the proximity switch 45, and if the detected value is within the allowable value, the material storing operation is continued as it is. When the value is out of the allowable value, an alarm is issued and the material of the storage shelf 11 on the opposite side is stored.

In FIG. 5, a displacement sensor 49 is provided on the sensor bracket 51 as the tilt detector 39. According to the above configuration, the reference position K of the column 7 is measured by the displacement sensor 49, the material is stored in the storage shelf 11, and the reference position is detected by the displacement sensor 49. If the detected value is within the allowable value, If so, the storage operation of the material is continued. When the value is out of the allowable value, an alarm is issued and the material is stored in the storage shelf 11 on the opposite side.

Further, FIGS. 6 and 7 show a tilt detector by swinging. More specifically, the weight 55 is connected to the lower end of the wire 53 hanging down from the support 7,
When is loaded, the detecting device 57 can detect the position of the weight 55 as shown in FIG. If the detected value deviates from the allowable value, an alarm is issued, but the material is stored in the storage shelf 11 on the opposite side.

Therefore, the other embodiment described above can exhibit the same effects as those of the embodiment using the photoelectric switches 41A and 41B.

The present invention is not limited to the above-described embodiment of the present invention, but can be embodied in other forms by making appropriate changes.

[0029]

As will be understood from the above description of the embodiments of the present invention, according to the present invention according to the first and second aspects, the crane travels over a three-dimensional shelf having storage shelves on both sides. At least the position of the crane is measured by the position detector. Moreover, by detecting the position of the tip of the column constituting the three-dimensional shelf with a tilt detector provided on the crane,
The inclination (deflection amount) of the three-dimensional shelf is detected and measured by one load.
Then, if the measured value exceeds the allowable value, a warning is issued and the material is replaced on the opposite side of the three-dimensional shelf.

Thus, the material can be prevented from falling due to a single load on the three-dimensional shelf, and can be used as a correction value when the material is stored and taken out by the crane.

According to the third aspect of the present invention,
By using a non-contact type detector as the tilt detector, accurate detection can be performed without being damaged by contact with an object.

[Brief description of the drawings]

FIG. 1 is a front view showing the overall configuration of a three-dimensional warehouse.

FIG. 2 is a side view of FIG.

FIG. 3 is an enlarged front view of a part viewed from an arrow III in FIG. 1;

FIG. 4 is an explanatory front view showing an example of another embodiment, in which a proximity switch is provided as a tilt detector.

FIG. 5 is an explanatory side view showing an example of another embodiment, in which a displacement sensor is provided as a tilt detector.

FIG. 6 is an explanatory front view showing an example of another embodiment and showing detection by a down swing.

FIG. 7 is an operation explanatory view in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 3D warehouse 3 3D shelf 5 Crane 7 Prop 39 Tilt detector 41A, 41B Photoelectric switch K Reference position E Encoder (position detector)

Claims (3)

[Claims] 1. A method for storing materials on shelves in a three-dimensional warehouse for storing materials, wherein: (A) when no material is stored on a three-dimensional shelf provided on both sides of the three-dimensional warehouse and having storage shelves, A pillar reference position measuring step of measuring a reference position of a tip end of a pillar constituting the three-dimensional shelf with an inclination detector provided on a crane traveling over a shelf, (B) after storing materials in the three-dimensional shelf, The tip end position of the column of the three-dimensional shelf is detected and measured by the tilt detector provided on the crane, and the measured value is compared with the reference position measurement value measured in the column reference position measurement step, and the comparison value is within an allowable value. Then, a material storing step of continuing the material storing operation. (C) After storing the material in the three-dimensional shelf, the tip end position of the column of the three-dimensional shelf is detected and measured by an inclination detector provided in the crane, and the measured value and The support base Comparing the reference position measurement value measured in the quasi-position measurement step with a reference value measured, and issuing an alarm if the comparison value is out of the allowable value; A material storage position changing step of storing a material on the opposite side of the storage shelf provided on the three-dimensional shelf, when the storage of the three-dimensional shelf is impossible, Storage method. 2. A three-dimensional shelf provided with a plurality of storage shelves for storing materials, a crane provided with a position detector running over the three-dimensional shelf is provided, and the three-dimensional shelf is configured on the crane. A three-dimensional warehouse provided with a tilt detector for detecting a tilt of a supporting column. 3. The three-dimensional warehouse according to claim 2, wherein the tilt detector is constituted by a non-contact type detector.