JPH1149314A - Steel product control method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steel product control method and device in which storage space becomes efficient without requiring recognition of difference between nominal sizes and real sizes of steel products, in which mixture of the steel products can be prevented, and in which stoppage of the device caused by size difference of the steel products can be prevented to achieve stable operation for a long time. SOLUTION: Nominal sizes of a steel product are inputted before the steel product is charged into a storage rack 7 by a charging device 9, real sizes of the steel product are automatically read by a real size measuring device 13, or inputted by an input means in charging the steel product into the storage rack 7, and the nominal sizes and the real sizes are memorized in a steel product data control device 11 with relation to each other, thereby the steel product can be controlled based on the nominal sizes and the real sizes only by inputting the nominal sizes only at the time of charging of it by a worker.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for managing a steel material, and more particularly to a method and an apparatus for managing a steel material based on both a nominal size and an actual size of the steel material.

[0002]

2. Description of the Related Art Conventionally, the classification of steel products in product management is as follows: (a) Material (b) Shape (round, plate, round pipe, square pipe ...) (c) Size (diameter φ, width w, plate) Thickness t...).

[0003] In the automatic conveyance, storage and processing of these steel materials, the above-mentioned (b) and (c) are important factors particularly in terms of control. Of these, the size of (c) has a positive error in the manufacture of the steel material, so the nominal size, which is the name of the steel material, and the actual size, which is the actual size and is actually used in a processing machine, etc. Have. However, this error varies greatly depending on the material, manufacturing method, and the like in the industrial standards of each country, and does not follow a simple rule.

When a nominal size is input to an apparatus for automatically transporting, storing, and processing steel material, (1) an allowable error is set in advance for each nominal size, material, and shape, and the actual size is set. If the allowable value is exceeded as compared with, transport, storage, processing, etc. are not performed.

(2) Regardless of the nominal size, a certain tolerance is set, and if the tolerance exceeds the actual size, the transport, storage, processing, etc. are not performed.

(3) Transport, storage, processing, etc. are performed based on the nominal size without considering the tolerance.

It is common to make such a judgment.

[0008]

However, in the case of classification based on the above-mentioned size, the following problems occur.

In the case of (1): It is extremely troublesome for an operator to provide an allowable value for each steel material to be transported, stored and processed in advance by size (material and shape). In addition, the margin which added the permissible error in the storage shelf etc. becomes necessary,
Poor space efficiency.

Case (2): Although the setting of the allowable error is easy, the error may be rejected on the device side even if the size of the error is allowed in the standard. In this case, the operator re-enters the data with the provisional nominal size, thereby causing a human error and increasing the possibility of mixing different materials.

Further, once a temporary nominal size is entered, it is impossible to search for the original nominal size in terms of inventory management. If steel materials are managed in actual size, the order data of the steel materials and the inventory data will not match. Would.

[0012] Further, a margin for adding an allowable error is required in a storage shelf or the like, and the space efficiency is poor. That is, as shown in FIG. 6, for example, even if it is attempted to store a steel material W having a nominal size of 100φ but an actual size of 110φ, it cannot be stored in a storage shelf 101 capable of storing a maximum of 100φ. In order to avoid this, it is necessary to add the maximum error to the margin value, and the space efficiency becomes poor.

Alternatively, as shown in FIG. 7, for example, when a steel material W having a nominal diameter of 50φ is stored in a storage shelf 103 having an effective width of 300 mm, if the actual size is 50φ or more, there is a space in which six can be originally stored. Only five can be stored.

Case (3): There is no problem in inventory management, but if the error is large, the device may be damaged due to interference or the like, and the operation may be stopped, making continuous operation difficult for a long time.

An object of the present invention is to pay attention to the above-mentioned conventional technology, and to make the storage space efficient without considering the difference between the nominal size and the actual size of the steel material, and to reduce the mixing of the steel material. It is an object of the present invention to provide a steel material management method and a device for preventing the device from stopping due to a difference in the size of the steel material and enabling stable operation for a long time.

[0016]

In order to achieve the above object, a method for managing steel products according to the present invention according to claim 1 comprises storing steel products in a storage shelf provided for storing the steel products in a predetermined position, In the steel material management method for managing the steel material stored in the storage shelf by the steel material data management device, a nominal size of the steel material is input before the steel material is stored in the storage shelf, and the steel material is stored in the storage shelf. Automatically read the actual size of the steel material when entering the warehouse or input the actual size, and store the nominal size and the actual size in association with each other by a memory means to search for a desired steel material or to obtain a desired steel material. When carrying out, a desired steel material is selected based on at least one of the nominal size and the actual size.

Therefore, before the steel material is stored in a predetermined position on the storage shelf, the nominal size of the steel material is input, and the steel material is automatically read when the steel material is stored, or the actual size is input by the input of the operator, and the nominal size is input. Since the size and the actual size are stored in association with each other, a desired steel material can be selected from the nominal size and the actual size when searching or carrying out the desired steel material.

According to a second aspect of the present invention, there is provided a steel material managing apparatus,
A storage shelf for storing steel materials in a predetermined position, a storage device for storing steel materials in the storage shelves, a steel material data management device for storing the sizes of steel materials stored in the storage shelves in a nominal size and an actual size size, A steel material transfer device for transferring a desired steel material stored in the storage shelf to a processing machine.

Therefore, the storage device inputs the nominal size of the steel material before storing the steel material in the storage shelf, and automatically reads or measures the actual size of the steel material when storing the steel material in the storage shelf. The size is input, and the nominal size and the actual size are associated with each other and stored in the steel material data management device. When searching for a desired steel material or carrying out a desired steel material, selecting a desired steel material by at least one of the nominal size or the actual size,
It is carried out by the steel material transfer device.

According to a third aspect of the present invention, there is provided a steel material managing apparatus,
3. The steel material management device according to claim 2, wherein the steel material data management device stores a steel material data memory for storing data on the steel material stored in the storage shelf, and a nominal size and an actual size of the steel material stored in the steel material data memory. And an arithmetic unit capable of mutually converting the nominal size and the actual size so as to be accessible by the size.

Therefore, in the steel material data management device, the data relating to the steel materials stored in the storage shelves is stored in the steel material data memory. However, in order to enable searching and unloading of a desired steel material, the operation unit has an actual size. Since the nominal sizes are stored so as to be mutually convertible, a desired steel material can be selected.

According to a fourth aspect of the present invention, there is provided a steel material management apparatus,
According to a second aspect of the present invention, in the steel material management apparatus, the storage device includes an actual size measuring device for detecting an actual size of the steel material to be stored.

Accordingly, the actual size of the steel material is obtained by the actual size measuring device provided in the storage device.

[0024]

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

FIG. 1 and FIG. 2 show an example of a steel material management apparatus 1 having, for example, an automatic band sawing machine 5 as a processing machine.

The steel material management device 1 includes a transport crane 5 as a steel material transport device for transporting the steel material W to the automatic band sawing machine 3, a storage shelf 7 for storing various steel materials W, and a steel material stored in the storage shelf 7. There is provided a stocking device 9 for supplying, and these are connected to the steel material data management device 11. The storage device 9 is provided with an actual size measuring device 13 for reading the actual size, which is the actual size of the steel material W.

Accordingly, the steel material W supplied by the storage device 9 is transported by the transport crane 5 to a predetermined position of the storage shelf 7 and stored. The data of the steel material W and the storage position at this time are stored in the steel material data management. It is stored in the device 11.
In addition, since the actual size measuring device 13 measures the actual size of the steel material W at the time of storage, the actual size is also stored in the steel material data management device 11.

Referring to FIG. 3, there is shown a configuration of the steel material data management device 11. In this steel material data management device 11, an input means 17 such as a keyboard and an output means 19 such as a CRT or a printer are connected to a CPU 15 which is a central processing unit. Also, the CPU 15
A set value memory 21 for storing various data inputted by the input means 17 and the like, a steel material data memory 23 which is a memory means for storing data relating to steel materials, and a program for controlling the storage shelf 7 and the storage device 9 are stored in the memory. Data is appropriately exchanged with a memory such as the control program memory 25 to be executed. Further, an operation unit 27 that performs various operations such as conversion between the nominal size and the actual size of the steel material W is connected to the CPU 15.

Further, the transport crane 5 according to the program stored in the control program memory 25 is used.
To control the automatic band sawing machine 3 to perform cutting by controlling the automatic band sawing machine 3, and control the storage shelf 7 and the storage device 9 by controlling the automatic band sawing machine 3. The storage control means 33 for storing the steel material W at a predetermined position is provided. In addition, the actual size of the steel material is received from the above-described actual size measuring device 13 provided outside, and various data are exchanged from outside by the external communication means 35.

Referring to FIGS. 3 to 5, a method of managing steel using the steel management apparatus 1 will be described.

Referring to FIG. 4, a description will first be given of the storage or material set. When the operation is started (step SAS), the worker inputs the steel material classification data such as the material and shape by the input means 17 of the steel material data management device 11 when the steel material W is stored by the storage device 9 (step SA).
1) Input the nominal size (step SA2) and store it in the steel material data memory 23. Next, the actual size of the steel material W supplied by the storage device 9 is measured by the actual size measuring device 13 or the actual size is input by the operator's hand (step SA3). After being transmitted to 11 and associated with the steel material classification data and stored in the steel material data memory 23, the stored steel material W is stored in the storage shelf 7 by the transport crane 5 (step SA4). The storage is thus completed (step SAE).

Next, with reference to FIG. 5, a description will be given of a case where a search or an access to the steel material W stored in the storage shelf 7 is performed. Start search (Step SB
S), it is determined whether or not the steel material data obtained here is used for machine control (step SB1). If the steel material data is not used for machine control, the actual size of the steel material W is not used. Input (step SB2). The operation unit 27 performs an operation based on the input nominal size, searches for the steel material classification data stored in the steel material data memory 23 (step SB3), and displays or prints the data by the output unit 19, or outputs the data to the external communication unit 35. Is transmitted to a predetermined place (step SB4).

On the other hand, if it is determined in step SB1 that the obtained steel material data is used for machine control, the actual size of the steel material W is used.
7 to input the actual size,
(Step SB5). Prior to the transfer, storage, and processing of the steel material, a control program is created based on the obtained actual size and stored in the control program memory 25, and further stored in the transfer control unit 29, the processing control unit 31, and the storage control unit 33. Sent (step SB
6).

Alternatively, it is sent to a predetermined place by the external communication means 35. At this time, if necessary, steel material classification data is added to the control program for display. In this way, each of the control means 31, 33, 35 is controlled by each of the devices 31, 33, 3 by the control program calculated from the actual size.
5 if there is a display (step SB7)
If necessary, the nominal size is obtained by calculation or obtained by input (step SB8), and the nominal size is displayed.
The process ends (step SBE).

From the above results, it is possible to store the nominal size and the actual size in association with each other by inputting the actual size when inputting the classification data of the steel material.
The actual size can be used when controlling the transfer and the processing machine, and the nominal size can be used when operating the steel material information other than the control such as the inventory search, the processing instruction, and the in / out instruction. This allows
There is no need to set a size tolerance for each steel material classification, and work efficiency is improved. In addition, since the operator can unify all input operations on the steel material to the nominal size without being conscious of the size error, stable operation of the automatic processing device can be achieved. Further, the installation space of the storage device can be made more efficient, and the mixing of steel materials (different materials) of different sizes can be prevented. Further, the size of the ordering information and the storage / transportation / processing instruction information can be unified.

The present invention is not limited to the above-described embodiment, but can be embodied in other forms by making appropriate changes. That is, the case where the transport control means 29, the storage control means 33, and the processing control means 31 shown in the above-described embodiment are included in the steel material data management device 11 has been described.
1, 33, and 35 each have an independent control device, and also include a case where the control program is shared by the external communication means 35.

Further, in the above-described embodiment, the external communication means 35 is connected to the steel material management device 1, but in addition, a storage medium such as a memory card or a floppy disk may be used. Is also good.

Further, the actual size data can be used not only for the control program but also for tabulation (for example, weight, cross-sectional area, etc.) of the classification data of steel materials as required.

[0039]

As described above, in the steel material management method according to the first aspect of the present invention, the nominal size of the steel material is input before the steel material is stored at a predetermined position on the storage shelf, and the steel material is stored at the predetermined position. Since the actual size is input automatically or entered by the operator and the nominal size and the actual size are stored in a memory in association with each other, when searching for and carrying out the desired steel material, the desired steel material can be used regardless of the nominal size or the actual size. Can be selected. For this reason, the operator does not have to worry about whether to enter the steel material size at the nominal size or the actual size, regardless of which size is entered. It can be operated properly by automatic driving, and the work efficiency can be improved.

In the steel material management apparatus according to the second aspect of the present invention, the storage device inputs the nominal size of the steel material before storing the steel material in the storage shelf and stores the steel material in the storage shelf when the steel material is stored in the storage shelf. The actual size is automatically read or the actual size is input, and the nominal size and the actual size are associated with each other and stored in the steel material data management device. And it is managed by the actual size. With this, when searching for a desired steel material or carrying out a desired steel material, a desired steel material can be selected based on at least one of the nominal size and the actual size, and the desired steel material can be carried out by the steel material transport device. Therefore, the processing machine can be operated properly by automatic operation for a long time, and the efficiency of work can be improved.

In the steel material management apparatus according to the third aspect of the present invention, the data relating to the steel materials stored in the storage rack is stored in the steel material data memory. Since the actual size and the nominal size are stored so as to be mutually convertible, a desired steel material can be selected from the nominal size or the actual size. Thus, the processing machine can be properly operated in the automatic operation for a long time without causing a size error, and the work efficiency can be improved.

In the steel material management device according to the fourth aspect of the present invention, since the actual size of the steel material is obtained by the actual size measuring device provided in the storage device, even if only the nominal size is input at the time of storage, it is associated with the actual size. Can be managed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a steel material management device according to the present invention.

FIG. 2 is a front view as viewed from a direction II in FIG.

FIG. 3 is a block diagram of a steel material data management device.

FIG. 4 is a flowchart showing an operation of storing or setting a material.

FIG. 5 is a flowchart showing a search and access operation of a steel material.

FIG. 6 is an explanatory diagram showing a problem in conventional steel material management.

FIG. 7 is an explanatory view showing a problem in conventional steel material management.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steel material management device 5 Transport crane (steel material transport device) 7 Storage shelf 9 Warehousing device 11 Steel material data management device 13 Actual size measuring device 23 Steel material data memory (memory means) 27 Operation part W Steel material

Claims (4)

[Claims] 1. A steel material management method for storing a steel material in a storage shelf provided to store the steel material at a predetermined position and managing the steel material stored in the storage shelf by a steel material data management device. Enter the nominal size of this steel material before entering the storage shelf, automatically read the actual size of the steel material when entering the steel material into the storage shelf, or enter the actual size, enter the nominal size And storing the actual size in association with a memory means, and selecting a desired steel material based on at least one of the nominal size and the actual size when searching for a desired steel material or carrying out a desired steel material. Steel material management method. 2. A storage shelf for storing a steel material in a predetermined position,
A storage device for storing steel material in the storage shelf, a steel material data management device for storing the size of the steel material stored in the storage shelf in a nominal size and an actual size, and a desired steel material stored in the storage shelf. A steel material management device, comprising: a steel material transfer device that transfers the steel material to a processing machine. 3. The steel material data management device is capable of accessing a steel material data memory for storing data relating to steel materials stored in the storage shelf, and a steel material stored in the steel material data memory in a nominal size and an actual size. 3. The steel material management device according to claim 2, further comprising: a calculation unit that can convert a nominal size and an actual size size into each other. 4. The steel material management device according to claim 2, wherein the storage device is provided with an actual size measuring device for detecting an actual size of the steel material to be stored.