JP2001150226A - Method and device for management of steel product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manage so as to search an appropriate workpiece to cut ordered parts out. SOLUTION: Information and a location of the workpiece W are always detected by a responder 51 attached to the workpiece W and a challenger 47 installed to a crane, and the appropriate workpiece W is searched when ordered while a position where the appropriate workpiece W is placed is displayed on an operating station 50 to make an operator efficiently perform cutting. Besides, an efficient management in respect to cost is performed by managing mills ends of the workpiece W to be minimum.

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, for example, steel materials used for metal mold parts, and more particularly, to a method and apparatus for controlling a cutting machine and a work transfer apparatus. And a device for managing steel materials stored in a work stocker.

[0002]

2. Description of the Related Art Generally, for example, a long steel material (hereinafter referred to as a work W) is used as a material for manufacturing a mold. The work W is stored in a plurality of work stock units of a work stocker arranged in relation to the cutting machine and the work transfer device.

[0003] At one end of the work W, a sticker on which the work information of the material, the shape, the dimension and the length of the work W is printed is attached to manage the work W.

[0004] When an order is received, the worker selects an appropriate work W from the stocked works W and performs a cutting process.

[0005]

SUMMARY OF THE INVENTION Such a conventional method of managing works W stored in a work stocker includes:
There were the following problems.

That is, for example, it is extremely important to search for an appropriate work W and to efficiently use and cut out the work W from the viewpoint of generating profit. And
Generally, the number of works W in stock is from 1800 to 2000 (including scraps), which is extremely large.

[0007] For this reason, the operator must select an appropriate work W from a large number of works W, so that there is a problem that the number of search steps is increased.

Further, the storage position of the work W must also be changed according to the frequency of use (for example, a work W that is frequently used is placed near a cutting machine), and which work W is located at which position. There was a problem that it had to be constantly managed, which required a lot of man-hours.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems.
In a cutting method for cutting a long work, a step of cutting a work information storage chip storing work information of a work material, shape, dimensions and length from one end of a work attached to one end by an automatic cutting machine. Calculating the total cutting length of the work by the automatic cutting machine; and subtracting the total cutting length from the work length stored in the work information storage chip to update the data of the work information storage chip. This is a cutting method comprising the following steps.

According to a second aspect of the present invention, there is provided an automatic cutting machine having an automatic material feeding mechanism and a cutting mechanism for a work to be cut, wherein the control device for controlling the automatic cutting machine is attached to the work and the work is mounted on the control device. An automatic cutting machine provided with an interrogator for transmitting and receiving data to and from a work information storage chip storing work information of a material, a shape, a dimension and a length.

According to a third aspect of the present invention, there is provided a work stocker having a plurality of work stock sections for storing works,
A work transport device for transporting the work between the work stocker and the cutting machine; and work information from an information storage chip attached to the work and storing work information of the material, shape, dimension and length of each work. An interrogator capable of reading and writing data, a communication unit for transmitting and receiving data between the interrogator and the control unit of the cutting machine, and associating position information of each work stock unit with each work information. And a work management unit for managing the stock state of each work stock unit.

[0012]

Embodiments of the present invention will be described with reference to the drawings. 1 and 2 are schematic configuration diagrams of a steel material management system according to the present embodiment. As shown in FIG. 1, this steel material management system includes, for example, an office terminal 1 for inputting data on an order received from a customer ordering a mold part, and the like, and the order item is used to determine which work in which factory. It has a management server 9 for deciding whether to use it, and a factory 23 for processing this ordered product.

The office terminal 1 and the management server 9
And the machine management personal computer 27 are networked by a communication cable 59.

The office terminal 1 has an input unit 3 for inputting detailed data of the mold parts and an order data generation unit 5 for editing the input data to generate order data Ji.
And an order data file 7 for storing the order data Ji.

The management server 9 stores an order data file 11 for storing the order data Ji transmitted from the office terminal 1 and all the base data Bi, which is information on the stocked work W. A proper work search unit 15 for reading order data Ji from the base data file 13 and reading base data Bi from the base data file 13 and generating proper work data Ti; Work data file 17 for storing
And

The management server 9 further includes a work W to be described later.
Stock information (in other words, base data Bi)
Is provided with a work information updating unit 19 for constantly updating the association data, and an association data file 21 for storing association data Ri, which is data for updating.

The factory 23 has a machine management personal computer 27 for performing communication and the like for notifying the worker of the work W to be cut, a work transfer device 45 for transferring the work W to be cut to the cutting machine, and And a cutting machine 55 for cutting.

The machine management personal computer 27 receives the appropriate work data Ti generated by the management server 9 and reads the appropriate work data file 29 to be stored and the appropriate work data Ti from the appropriate work data file 29, which will be described later. Work data W by communicating with the interrogator 47
communication unit 31 for generating i and work position data Pi
A work data file 35 for storing the work data Wi; a work position data file 37 for storing the work position data Pi;
5, the work data Wi is read from the work position data file 37, the work position data Pi is read from the work position data file 37, and the two kinds of data are related to each other to generate the relation data Ri. Association data file 4 to be stored
3 and a timer management unit 41 for checking the idle time of each processing unit.

By the way, the timer management unit 41 checks the free time of the cutting process, and utilizes this free time to
The interrogator 47 stores the I stored in the transponder 51 attached to the work W placed in the work stocker unit 53.
The time aspect for reading the D information is managed.

The work transfer device 45 includes an interrogator 47
, A position detector 49, and an operation terminal 50. These can communicate with the machine management personal computer 27 via the conversion processing unit 57.

The work W stocked in the work stocker section 53 is provided with a transponder 51.
Then, the work W is transferred to the cutting machine 55 by the work transfer device 45.

Here, the schematic configuration of the above-described work transfer device 45 will be described with reference to FIG. The work transfer device 45 sets the reference position 79 in the factory and
In the X-axis direction 75, the Y-axis direction 77, and the up-down direction 78. Then, the runways 61 are installed at two places in parallel with the X-axis direction 75 to move in the X-direction. A run rail 62 is provided on the runway 61 so that the crane saddle 63 can be moved in the X-axis direction. A crane wheel 65 provided on the crane saddle 63 is configured to move on the traveling rail 62 by driving a geared motor (not shown).

The crane saddle 63 has Y
Two crane gutters 67 are provided in parallel with the axial direction 77. The electric hoist 69 is moved in parallel with the Y-axis direction 77 by a traveling controller (not shown) on a traversing rail 68 provided on the crane gutter 67. A load block 83 that can be moved up and down by wires is attached to the electric hoist 69.

The movement in the X-axis direction 75, the Y-axis direction 77, and the vertical direction 78 is controlled by the operation terminal 50. Also, a reference position 79 in the X-axis direction 77 and the Y-axis direction 78
The distance from is determined by an appropriate position detector, such as a pulse generator 71 installed on the crane saddle 63 and a pulse generator 73 installed on the electric hoist 69, for example.

Further, the electric hoist 69 stores the I stored in the transponder 51 attached to the end of the work W.
An interrogator 47 for reading the D information is attached. An antenna 85 having directivity is attached to the interrogator 47, and the interrogator 47 and the responder 51 operate when the interrogator 47 corresponds to the up-down direction 78 to read the ID information. In the present example, in the work transfer device 45, the means for transferring the work W is controlled by the operation of the operation terminal 50 by the operator. However, for example, sequence data may be generated and the above-described control may be performed. Of course.

Here, the structure of each file for storing data in the computer will be described with reference to FIGS.

FIG. 3A shows the structure of a file for storing the order data Ji. This file stores, for each part, the name of the part for which an order has been received, the shape dimensions that are the dimensions of the part, the length dimension that is the length, the material, and the number of parts to be manufactured. It has a structure.
In this example, the part name stores the die and the punch, and the shape and dimension for the die are φ50.0, the length is 60.0, the material is SKD11, and the number of data is three. Have been. The size of the punch is φ40.
0, length dimension 70.0, material SKD11, number 3
Are stored as individual pieces.

FIG. 3B shows the structure of a file for storing the base data Bi. This file contains the serial number of the stocked work W, the shape and dimensions of the work W, the length dimension that is the length of the work W, the material of the work W, and the interrogator 47 attached to the work W. And the XY position where the work W is stored is stored for each work W.

In this example, for example, as an example, for a workpiece W having a serial number 954307, a shape dimension φ50.
0, length 900.0, material SKD11, ID information A
0161, position X1526, and Y2285 are stored. For the work W of serial number 971206, the shape dimension φ50.0, the length dimension 300.0, the material SKD11,
ID information A0115, position X2151, and Y3825 are stored. For work W of serial number 977116, shape dimension φ60.0, length dimension 600.0, material S
KD11, ID information A0181, position X3141, Y2
852 are stored. For the work W having the serial number 951561, the shape dimension φ40.0 and the length dimension 800.
0, material SKD11, ID information A0125, position X37
59 and Y3312 are stored. It should be noted that such information of the work W is equivalent to the number of the work W stocked,
Data is stored.

FIG. 3C shows the structure of a file for storing the appropriate work data Ti. This file is
The structure stores the serial number, shape, length, material, ID information, and position of the work to be used.

In this example, the workpiece W having the serial number 971206 has a shape dimension φ50.0 and a length dimension 300.
0, material SKD11, ID information A0115, position X21
51, Y3825 and work W of serial number 951561
In contrast, the shape dimension φ40.0, the length dimension 800.0,
Material SKD11, ID information A0125, position X375
9, Y3321 are stored.

FIG. 4A shows the structure of a file for storing work data Wi. This file has a structure for storing the ID information of the used work W and the length of the work W after cutting.

In this example, the work length 120.0 after cutting is stored for the ID information A0115 of the used work W. Similarly, a work length after cutting 590.0 is stored corresponding to the ID information A0125.

FIG. 4B shows a structure of a file for storing the work position data Pi. This file is
The structure is such that the ID information of the used work W and the XY position where the work W is placed are stored.

In this example, the position X21 where the work W is placed corresponds to the ID information A0115 of the used work W.
51 and Y3825 are stored. Similarly, the work W corresponds to the ID information A0125 of the work W used.
Are stored at the positions X3759 and Y3321.

FIG. 4C shows the structure of a file for storing the association data Ri. This file is data generated by associating the work data Wi with the work position data Pi, and includes a serial number of the used work W, a shape dimension, a length dimension of the used work W, and the like. , Material, ID information, and the position where the work W is placed.

In the present example, the shape dimension φ50.0, length dimension 120.0, material SKD11, ID information A0115,
The positions X2151 and Y3825 where the work W is placed are stored. Serial number 95156 of used work W
Corresponding to the above, the shape dimension φ40.0, the workpiece W after cutting
Length 590.0, material SKD11, ID information A0
125, the position where the work is placed X3759, Y3321
Is stored.

Here, the display screen of the operation terminal 50 will be described with reference to FIG. First, the operation terminal 50
The functions for controlling the normal crane movement include the positions detected by the pulse generators 71 and 73, and the interrogator 47.
Thus, the ID information stored in the transponder 51 attached to the work W read by the computer can be displayed.

The moving state is configured such that the number of pulses counted by the pulse generators 71 and 73 is converted into data that can be processed by the personal computer by the conversion processing unit 57 and transmitted to the machine management personal computer 27. The machine management personal computer 27 calculates the moving distance from the transmitted data to determine the current position. Further, the machine management personal computer 27 transmits the position data to the operation terminal 50.
This operation terminal 50 is configured to display the current position in the moving state column.

When moving to the position of the target work W, the interrogator 47 becomes a transponder 51 attached to the work W.
Reads the ID information stored in the machine management computer 2
7 The machine management personal computer 27 transmits this ID information to the operation terminal 50, and the operation terminal 50
The information is displayed in the moving state column.

Thus, the configuration is such that the operator can confirm by comparing with the ID information displayed in the column of the position of the work.

The operation of the steel material management system will be described with reference to the flowcharts of FIGS. Note that FIG.
FIG. 6 is a flow for always rewriting the position of the work W stored in the work stocker unit 53.
FIGS. 7 and 8 show the flow when the order data Ji is input to the office terminal 1.

First, in the interrogator moving process in step S501, the interrogator 47 installed on the electric hoist 69 that can move in the X and Y axes directions is freely moving in the work stocker area 53. Accordingly, the interrogator 47 can detect the position of the transponder 51 attached to the work W placed on the work stocker unit 53 at a time when the cutting process is not performed, for example, at night. And always, work W
Is located in the base data file 13 of the management server 9.
Can be updated and stored.

In the determination processing of step S503, the antenna 85 installed in the interrogator 47
It is determined whether or not there is a transponder 51 attached to the work W almost below 7. In the determination processing of step S503,
If it is determined that the transponder 51 exists substantially below the interrogator 47, the process proceeds to the reading detection process of step S505. If it is determined in step S503 that the transponder 51 does not exist substantially below the interrogator 47, the process proceeds to the interrogator moving process in step S501, and the same process as described above is performed.

Then, in the reading detection processing in step S505, the interrogator 47 stores the I
In addition to reading the D information, a process of reading a position detected by a position detector such as the pulse generators 71 and 73 is performed.

Next, in the conversion processing of step S507,
ID read in the reading detection process in step S505
It converts information and pulses into computer data and sends it to the machine management personal computer. This allows these data to be processed by computer.

In the associating process in step S509, a process of associating the converted work data Wi with the work position data Pi is performed. Thereby, the position of the work W where the specific ID information is stored can be stored.

In the transmission process of step S511, a process of transmitting the data associated in step S509 to the management server 9 is performed. In this process, the data of the base data Bi stored in the management server 9 can be updated and stored. In the update processing in step S513, processing for updating and storing the contents of the base data Bi to new contents is performed. With this, from the new order data Ji,
In addition, an appropriate work W can be searched.

Finally, in the judgment processing of step S515,
It is determined whether new order data Ji has been input. If it is determined in step S515 that new order data Ji has not been input, the process returns to step S501 to perform the series of processes described above. If it is determined in step S515 that the new order data Ji has been input, the above-described process is terminated, and the process proceeds to the processes described in the flowcharts of FIGS.

Referring to the flowcharts of FIGS. 7 and 8, a description will be given of the flow of processing when an order is received for a part.

First, in the input processing of step S701, data on the ordered parts is stored in the office terminal 1
Enter from. Then, in the storage process of step S703, a process of temporarily storing the order data Ji in the order data file 7 is performed.

Next, in the transmission processing of step S705,
A process of transmitting the order data Ji on the office terminal side to the management server 9 is performed. This makes it possible to deal with order data Ji sent from a plurality of office terminals.

In the search process of step S707, a process of searching the base data Bi stored in the base data file 13 for a proper work for processing the ordered part and generating proper work data Ti is performed. In the transmission process of step S709, a process of transmitting the appropriate work data Ti to the machine management personal computer 27 is performed. Thereby, each information of the work W can be confirmed at the factory where the work W is actually cut.

Next, in the display processing of step S711, the appropriate work data Ti is displayed on the display screen of the operation terminal 50 for operating the crane. Thus, the operator can obtain the target work W while viewing the display screen of the operation terminal 50.

In the moving process in step S713, the worker moves the crane to the position of the work W displayed on the display screen of the operation terminal 50.

Then, in the confirmation processing of step S715, the interrogator 47 reads the ID information stored in the transponder 51 attached to the work W, transmits it to the machine management personal computer 27, and then transmits the ID information to the operation terminal 50. Is performed on the display screen. Thereby, the operator can confirm the target work W without mistake.

In the work cutting process in step S717, the worker transports the work W to the cutting machine 55, and cuts the work W. Then, the work W that has been cut in the installation processing in step S719 is returned to the original position, and the work information and the position information after cutting are read into the machine management personal computer 27 in the reading processing in step S721.

As described above, at the same time that the interrogator 47 reads the ID information stored in the responder 51,
Can be detected at the same time. By storing the detected position and information such as the length of the work W after cutting the work in the management server 9, when a new order is received,
The optimum work W can be searched.

Then, by searching for a proper work W, the cut work W can be used without wasting, thereby reducing the cost. Further, when the workpiece W is transported, the ID information of the workpiece W to be transported is read, and it can be checked whether the ID information is the same as the ID information registered in advance, so that accurate workpiece management can be performed.

[0060]

According to the present invention, an ID is provided at one end of a work.
Since the chip is attached, cut from the other side, and information is updated, there is an effect that the material, shape, and dimensional management are easy.

Further, in an automatic cutting machine having an automatic material feeding mechanism and a cutting machine, data is transmitted and received between an ID chip attached to one end of the work and an interrogator, so that the work W can be transported. In addition, since the ID information of the work W to be conveyed is read and it is possible to confirm whether the ID information is the same as the ID information registered in advance, there is an effect that accurate work management can be performed.

Then, the position information of the work stock section
By managing the work information in association with each work information and managing the stock status of each work stock section, when a new order is received, the optimum work W can be quickly searched, and the number of search steps can be reduced. It has the effect of becoming. In addition, by searching for an appropriate work W, the cut work W can be used without being wasted, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a schematic configuration of a work management device.

FIG. 2 is a schematic view continued from FIG. 1;

FIG. 3 is an explanatory diagram illustrating the structure of a file.

FIG. 4 is an explanatory view continued from FIG. 3;

FIG. 5 is a flowchart illustrating a method of detecting a storage drawing position of a work.

FIG. 6 is a continuation of the flowchart of FIG. 5;

FIG. 7 is a flowchart illustrating a method of searching for a proper work.

FIG. 8 is a continuation of the flowchart of FIG. 7;

[Explanation of symbols]

REFERENCE SIGNS LIST 1 office terminal 3 input unit 5 order data generation unit 7 order data file (office terminal side) 9 management server 11 order data file (management server side) 13 base data file 15 proper work search unit 17 proper work data file (management) 19) Work information update unit 21 Association data file (management server side) 23 Factory 27 Machine management personal computer 29 Proper work data file (Machine management personal computer side) 31 Communication unit 35 Work data file 37 Work position data file 39 Creation of association data Unit 41 timer management unit 43 association data file (machine management personal computer side) 45 work transport device 47 interrogator 49 position detector 50 operation terminal 51 transponder 53 work stocker unit 55 cutting machine 57 conversion processing unit 59 communication Cable 61 Runway 62 traveling rail 63 Crane saddle 65 crane wheels 67 crane girder 68 traverse rail 69 electric hoist 71 pulse generator 73 the pulse generator 75 X-axis direction 77 Y-axis direction 78 vertical 83 load block 85 antenna

Claims (3)

[Claims] 1. A cutting method for cutting a long work, the method comprising the following steps. (A) A step of cutting a work information storage chip storing work information of a work material, a shape, a dimension, and a length from one end side of a work attached to one end side by an automatic cutting machine. (B) calculating a total cutting length of the work by the automatic cutting machine; (C) a step of subtracting the total cutting length from the work length stored in the work information storage chip to update the data of the work information storage chip. 2. An automatic cutting machine provided with an automatic material feeding mechanism and a cutting mechanism for a workpiece to be cut, wherein a control device for controlling the automatic cutting machine is attached to the workpiece and the material, shape and size of the workpiece. An automatic cutting machine provided with an interrogator for transmitting / receiving data to / from a work information storage chip storing length work information. 3. A work stocker provided with a plurality of work stock sections for storing works, a work transfer device for transferring works between the work stocker and a cutting machine, An interrogator that can read and write work information from an information storage chip that stores work information of the material, shape, dimensions, and length of the work, and data transmission and reception between the interrogator and a control unit of the cutting machine. And a work management unit that manages the position information of each work stock unit and each work information in association with each other and manages the stock state of each work stock unit. Management device.