JPH10251765A - Method for identification-controlling metallic product in continuous heat treatment line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent miss-attachment at the time of attaching/detaching an indentifying label of a product, in a continuous heat treatment line of the metallic product. SOLUTION: Before charging into a continuous heat treatment furnace 6, the identifying label is attached to each metallic product and the metallic products are laid by lining up on a charging table 7 to the furnace. Successively, data of the metallic product address 13 of each metallic product composed of a charging order datum given to each metallic product group in the charging order and line data 12 given to the line laying each metallic product belonging to each group and read-out data from the identifying label 9 attached to each metallic product, are stored into a storing device 14 in each metallic product. Successively, the identifying label 9 is detached from the metallic product, and after executing the heat treatment to the metallic product, the detached product indentifying label 9 is attached. Further, the data of the indentifying label attached to each metallic product positioned to each metallic product address 13 are read out, and the data are collated with the data of the metallic product address and the read-out data from the indentifying label storing the data in the storing device 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an identification management method for metal products in a continuous heat treatment line, and more particularly to an identification management method using an electronic device.

[0002]

2. Description of the Related Art FIG. 1 is a schematic view showing a state of handling a metal product 5 in a conventional continuous heat treatment line.

[0003] First, after a metal product 5 is loaded on the loading stand 2, a product identification label 4 attached to the metal product 5 is applied.
Is removed on the loading stand 2. Next, after the heat treatment, the metal products 5 extracted from the heat treatment furnace 1 onto the extraction table 3 are:
Again, in order to identify each metal product 5, the identification label 4 removed at the loading table 2 is attached to the metal product 5. This work currently depends on human labor.

[0004]

The metal products to be heat-treated in a continuous heat treatment furnace have the same heat treatment conditions,
Each metal product has different specifications such as delivery destination, components and dimensions. Therefore, there is a great inconvenience in the event that the identification label is attached by mistake. In addition, the quality check requires enormous cost and time. Therefore, there is a demand for a method for quickly and accurately checking the state of attachment of a product identification label to a metal product and completely preventing erroneous attachment of the product identification label.

[0005]

Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and the gist of the invention is that "a plurality of types of metal products are arranged in parallel and sequentially mounted in a heat treatment furnace. In the continuous heat treatment line where the heat treatment is carried out continuously, a product identification label is attached to each metal product before loading into the heat treatment furnace, and the metal in the order of loading is placed on the loading table for the heat treatment furnace. For each product group, metal products belonging to the group are arranged in parallel in a plurality of rows and loaded, and then the loading order data assigned to each metal product group in the loading order and the metal products belonging to each group are loaded. The data of the metal product address for each metal product composed of the column data given to the given column, and the data read from the product identification label attached to each metal product are stored in association with each metal product. Memorize in the device, Then, remove the product identification label from the metal product, insert the metal product into the heat treatment furnace and heat-treat it, attach the removed product identification label to the heat-treated metal product, and then position each metal product address. The data of the product identification label attached to each metal product is read using an electronic device, and the data is compared with the data of the metal product address stored in the storage device and the read data from the product identification label. A method of identifying and managing metal products in a continuous heat treatment line.

In the present invention, the metal product is, for example, a steel bar, a steel pipe, a wire rod (steel wire), and the like, which are united by being bound together. It is not particularly limited as long as it is a metal product which can be physically distinguished regardless of the number and weight and can be arranged in parallel and charged into a heat treatment furnace.

[0007] The product identification label is a display that makes each metal product distinguishable from other metal products, and is, for example, a bar code label. In the present invention, it is attached to each metal product. For example, in the case of a metal product in which a plurality of steel bars are bound, an iron wire or the like attached to a product identification label is wound around any one end of the plurality of steel bars. There is also a method of mounting.

The charging order data is, for example, a charging number, and is code data assigned to each metal product group arranged in parallel. For example, a charging order number for the heat treatment furnace can be used.

The column data is positional information (for example, column numbers) in which metal products are arranged in a parallel direction in a metal product group in a certain charging order.

The address is a loading position of a metal product determined by the loading order data and the column data.

The electronic device is capable of reading at least the product identification label information, storing the product identification label information and the metal product address information, collating the stored data, and judging the quality of the collation result. Any device that can output the resulting signal may be used.

[0012] In the continuous heat treatment furnace, the product identification label for identifying each metal product indicates that the metal product is at a high temperature (about 50 ° C).
0 to about 1250 ° C.), it is necessary to remove it before heat treatment for preserving its identification information, and after heat treatment, it is necessary to attach the product identification label to the original for product identification. is there.

In the heat treatment, the weight to be charged into the furnace is required to be substantially constant within the specification range of the equipment in order to stabilize the quality of the metal product. On the other hand, the weight per unit of metal product has a width depending on the customer's required amount, etc. Therefore, before loading on the loading table, the combination of the metal product loading order and the arrangement method in the column direction is determined. It is preferable to keep it. Therefore, for each metal product for which a combination has been determined, the address (charge number, column number) is displayed on the product identification label, and based on the address, the product can be loaded on the charging table.

FIG. 2 is a schematic diagram showing one embodiment of the present invention.
To explain with reference to this drawing, the product identification label 9 of the metal product 10 loaded on the loading stand 7 is read using the electronic device 14, and the address data and the read data from the product identification label 9 are stored. Thereafter, all the product identification labels 9 in the entire row are removed. The same operation is repeated for the following charging numbers.

After the metal product 10 on which the above-mentioned operation has been performed is extracted from the continuous heat treatment furnace 6 and moved onto the extraction stand 8, the product is identified on a charge number basis based on the address indicated on the product identification label 9. The label 9 is attached.

Thereafter, using the electronic device 14, address data is input, the data from the product identification label 9 is read, and the data is compared with the data stored on the loading table 7 for each charging number. By doing so, an incorrect attachment of the product identification label 9 can be found.

[0017]

Embodiments of the present invention will be described with reference to the drawings. FIG. 3 is a schematic diagram showing one embodiment of the present invention.

As shown in FIG. 3, various metal products 19 are loaded on the loading table 16 of the continuous heat treatment furnace 15.

1. As shown in the figure, the stacking is carried out in parallel for each group in the charging order from various conditions such as heat treatment conditions and weight of each metal product.

For example, an address in which a charging number and a column number are written on the product identification label 18 of each metal product 19 is displayed,
Based on this, metal products may be arranged on the loading table 16.

2. Thereafter, using the carrying terminal 24 and the barcode reader 23, the barcode of the product identification management label 18 is read and stored in order from the bottom to the top of the drawing for each charging number.

At this time, the charging number and the column number are stored together with the bar code data of each metal product 19.

In this embodiment, the product identification label 18
For reading, a bar code was attached to the product identification label 18, and a handy type carrying terminal 23 and a bar code reader 24 were used for the electronic device.

3. The product identification label 18 is attached to the metal product 19 extracted from the continuous heat treatment furnace 15 and moved onto the extraction table 17 based on the address indicated on the product identification label 18 for each charging number.

After attaching the product identification label 18, the carrying terminal 24 and the bar code reader 23 storing the data of the corresponding metal product 19 on the loading table 16.
The bar code of the product identification label 18 is read in the reading order (from the bottom to the top) performed by the loading table 16 for each loading number.

At the carrying terminal 23, the data on the loading table 16 (the bar code of the product identification label 18 and each address) and the data on the extraction table 17 are compared for each charging number. Carrying terminal 23
Displays an error message at

4. Metal product 1 loaded on loading table 16
For example, the relationship between 9 and the charging number and column number is as follows.

In charging number 1, column number 1/4: SCM415 φ20 × for company A
4800L to about 1t Row No. 2/4: For Company B SCM415 φ25 ×
5000L to about 1.5t Row No. 3/4: For Company C SCM420 φ22 ×
5000L to about 2t Row No. 4/4: For Company D SCM420 φ24 ×
4800L to about 1.2t In other charging numbers, a column number is given to metal products 19 having different delivery destinations and dimensions in the same manner as described above. When と / 5 is displayed, hereinafter, 2-2 / 5, 2-3 / 5, 2-4 / 5, 2
-5/5, 3-1 / 4, 3-2 / 4, 3-3 / 4, 4-
4/4,... N-n / n.

The above embodiment of the present invention is characterized in that a general portable carrying terminal and a bar code reader are used as a device for reading a product identification label and storing the data. As a result, installation can be performed with low capital investment.

A feature of the work method that has become usable is that the reading direction on the loading table and the reading direction on the extraction table are the same.

Another object of the present invention is to use the carrying terminal storing the data on the loading table for checking the data on the extraction table. This has the advantage of minimizing the number of carrying terminals used.

[0032]

According to the present invention, in the continuous heat treatment line for metal products, even if the product identification label of the metal product is detached, it is possible to prevent the product identification label from being erroneously attached. It is big.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a state of handling metal products in a conventional continuous heat treatment line.

FIG. 2 is a schematic diagram showing one embodiment of the present invention.

FIG. 3 is a schematic diagram showing one embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Heat treatment furnace 2 ... Loading table 3 ... Extraction table 4 ... Product identification label 5 ... Metal product 6 ... Continuous heat treatment furnace 7 ... Loading table 8 ... Extraction table 9 ... Product identification label 10 ... Metal product 11 ... Loading No. 12 ... Column number 13 ... Address 14 ... Electronic device 15 ... Continuous heat treatment furnace 16 ... Loading table 17 ... Extraction table 18 ... Product identification label 19 ... Metal product 20 ... Charging number 21 ... Column number 22 ... Address 23 ... Barcode reader 24 Carrying terminal.

Claims (1)

[Claims] 1. In a continuous heat treatment line for arranging a plurality of types of metal products in parallel, sequentially charging them in a heat treatment furnace, and continuously heat-treating the products, before charging the heat treatment furnace, a product for each metal product Attach an identification label and, on the loading table to the heat treatment furnace, load metal products belonging to that group in parallel in multiple rows for each metal product group in the loading order, and then load the metal products in the loading order. Metal product address data for each metal product, comprising charging order data provided for each group, and column data provided for a column in which each metal product belonging to each group is loaded, and The data read from the product identification label attached to the storage device is stored in a storage device in association with each metal product, and then the product identification label is removed from the metal product, and the metal product is inserted into a heat treatment furnace and heat-treated. After heat treatment Attach the removed product identification label to the metal product, then read the data of the product identification label attached to each metal product located at each metal product address using an electronic device, and read the data. A method for identifying and managing a metal product in a continuous heat treatment line, wherein the data is compared with data of a metal product address stored in the storage device and data read from a product identification label.