JP2856242B2 - Manufacturing management method for a factory consisting of multiple manufacturing processes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unprocessed steel strip coil (hereinafter simply referred to as a "steel strip") transferred to a manufacturing process in a factory having a plurality of manufacturing processes such as the manufacture of a steel sheet. The present invention relates to a system for storing used steel strips in an automatic warehouse or transporting the strips to the next manufacturing process and instructing the processing.

[0002]

2. Description of the Related Art In a steel sheet manufacturing plant, a steel strip processed in a manufacturing process such as a cold rolling and annealing pickling process of a steel strip is basically temporarily placed temporarily as a work-in-process material, and is then temporarily placed in a plurality of refinement steps. It is transported according to the processing schedule.
Since the number of equipment lines is large and the number of steel strips handled is large in both the annealing pickling process and the refining process, the logistics are congested.
Conventionally, inventory management and transport instructions of steel strips are performed by form management, and transport is performed by a manned lift truck, overhead traveling crane, or the like. At the time of transport, the operator checked the actual product and instructed the storage place.

[0003]

However, since the storage sites are widely distributed, it is very difficult to grasp the flow of the steel strip in a centralized manner throughout the factory, and in some manufacturing processes, the transfer of the steel strip is delayed. , And the production efficiency was hindered. In addition, such transport requires complicated physical distribution management and a large number of transport device operating personnel, which hinders personnel efficiency. Conventionally, an automatic transport / warehouse management system for logistics management has been disclosed in JP-A-62-121104 and JP-A-6-121104.
JP-A-2-222903 or JP-A-2-27070
No. 4, proposed by these publications,
It was about automatic control of logistics in warehouses, not the whole factory. SUMMARY OF THE INVENTION An object of the present invention is to provide a manufacturing management method for instructing material transport and processing in a whole factory with a small number of people or unmanned.

[0004]

According to the present invention, there is provided a manufacturing management method for a factory comprising a plurality of manufacturing steps, wherein a management system includes a computer for production management, an inventory / operation management device, a transport control device, and a warehouse control device. (1) The production management computer assigns an actual item identification code to each material, accepts the material corresponding to the order information, creates a manufacturing process flow based on the contents of the order information, and The production identification information is assigned, the production instruction information is transmitted to the production process according to the allocated production process flow, and the transportation instruction information is transmitted to the inventory / operation management device, and the production result is received from the production process to manage the production result. Edit the information, send the manufacturing instruction information to the manufacturing process according to the edited manufacturing result management information, receive the transfer results from the inventory and operation management device, and edit the inventory management information. The transport instruction information is transmitted to the inventory / operation management device according to the edited inventory management information. (2) The inventory / operation management device transmits the transport instruction information to the transport control device and the warehouse control device, and the transport control device and the warehouse control. The transfer result is received from the device, the storage address management information is edited, and the transfer result is transmitted to the production management computer. (3) The transfer control device transfers the material by the transfer device according to the transfer instruction information, and transfers the material. The results are transmitted to the inventory and operation management device. (4) The warehouse control device searches the storage location of the material in the automatic warehouse according to the transfer instruction information, enters or leaves the material, and manages the transfer result in inventory and operation management. A manufacturing management method for a factory comprising a plurality of manufacturing steps, wherein the method is transmitted to an apparatus.

[0005]

The computer for production control assigns an individual physical identification code to each steel strip as a material (hereinafter, a case where the material is a steel strip), and identifies the steel strip corresponding to the order information with the physical identification code. Is accepted as a search key. On the other hand, the order information is developed into a manufacturing process flow in which the order of the manufacturing processes and the manufacturing conditions are arranged according to the contents thereof, an actual product identification code is assigned to each of the developed manufacturing process flows, and this manufacturing process flow is referred to as the order information. The order is arranged according to the delivery date and the like, and a production plan is created. According to the production plan, the actual product identification code is used as a search key, the production instruction information is transmitted to the corresponding production process according to the production process flow, and the transport instruction information is transmitted to the operation management device. When the processing is completed in the manufacturing process, the manufacturing result is received, the manufacturing result management information is edited, and the manufacturing instruction information is transmitted to the manufacturing process based on the manufacturing result management information. In addition, it receives the transfer results from the operation management device, edits the inventory management information, and transmits the transfer instruction information to the inventory and operation management device based on the inventory management information. The inventory / operation management device transmits the transport instruction information to the transport control device and the warehouse control device using the actual item identification code as a search key. The transport control device transports the steel strip to the entrance / exit of the automatic warehouse by the transport device according to the transport instruction information, and transmits the transport result to the inventory / operation management device. The inventory / operation management device transmits the transfer result to the production management computer, and the production management computer edits the inventory management information based on the transfer result. Warehouse control equipment
In accordance with the transfer instruction information, the storage location of the steel strip in the automatic warehouse is searched, the steel strip is transferred to an empty storage place, and the transfer result is transmitted to the inventory / operation management device. The inventory / operation management device edits the yard address management information based on the transfer result, and transmits the transfer result to the production management computer. The production management computer edits the inventory management information based on the transport results received from the inventory / operation management device.

[0006] When transmitting the transfer instruction information to the steel strip in the automatic warehouse to the next manufacturing process, the production management computer transmits the transfer instruction information to the inventory and operation management device using the actual item identification code as a search key. The inventory and operation management device sends the transfer instruction information of the steel strip to the warehouse control device, the warehouse control device searches for the storage address of the steel strip in the automatic warehouse and transfers the steel strip to the doorway, and the transfer control device The steel strip is transported to the manufacturing process from the doorway by the transport device.

[0007] The production management computer often stops for maintenance or the like. In this case, the carry-in of the steel strip to the automatic warehouse in the manufacturing process is performed by an operator. That is, when the actual product identification code of the steel strip is input from the terminal of the inventory / operation management device, the transportation instruction information is transmitted from the inventory / operation management device to the transportation control device, and the warehouse control device transmits the information to the empty address of the automatic warehouse. The transfer instruction information is transmitted, and the steel strip is transferred from the manufacturing process to an empty address of the automatic warehouse.

If it is necessary to transfer a plurality of steel strips from the automatic warehouse to the manufacturing process while the production management computer is stopped, a plurality of steel strips are transferred from the production management computer to the inventory / operation management device before the stop. Instruction information is transmitted. Based on the transfer instruction information, the inventory and operation management device transmits the transfer instruction information to the warehouse control device and the transfer instruction information from the automatic warehouse to the manufacturing process to the transfer control device. From to the manufacturing process. When the production management computer returns, the plurality of transport results are transmitted from the inventory / operation management device to the production management computer, and the production management computer performs a performance process of editing the inventory management information and starts operating normally.

[0009] When carrying out an inventory work to check the steel strip in the automatic warehouse, the storage address management information of the automatic warehouse (the physical identification code and the storage address) is displayed on the display panel of the inventory and operation management device.
Is displayed, and when the physical identification code or the storage address is input by the keyboard, the steel strip at the storage address is taken out of the automatic warehouse. The operator checks the delivered steel strip,
When the physical identification code or the storage address is re-entered using the keyboard, the steel strip is returned to the original storage address.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on an embodiment in which the present invention is applied to a steel plate manufacturing plant. FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a schematic diagram of a layout of a factory to which the manufacturing management method of the present invention is applied, and FIG. 3 is a diagram showing a flow of transmission and reception. In the system of the present invention,
A unique product identification code is assigned to each steel strip to be manufactured, and the present product identification code is used as a search key when a steel strip is to be transported, a production instruction is made, a production record is managed, an inventory is managed, or the like. In FIG. 1, reference numeral 1 designates an actual product identification code for each steel strip as a material, accepts a steel strip corresponding to the order information, develops the contents of the order information into a manufacturing process flow, and displays an actual product for each manufacturing process flow. A production management computer that assigns identification symbols, arranges the order of each manufacturing process flow according to the order information, creates a production plan, and edits the production result management information and inventory management information based on the production results and transport results. is there. The production management computer 1 converts the order information of the material procurement computer 2 storing the stock steel strip information, the order processing computer 3 storing the order information, and the order processing computer 3 by the production management computer 1 into the manufacturing process flow. And an order development file 11 storing the same, transmission / reception terminal devices A11 to A14, B11, B12, C11 to C provided in the manufacturing process.
Manufacturing results and order development file 11 transmitted from 14
The steel strip information file 12 for editing the production performance management information created by the production management computer 1 based on the production process flow of the above and the stock steel strip information of the material procurement computer 2, and processing such as packing and shipping of the completed steel strip. The shipping computer 4 to be instructed is connected to the inventory / operation management device 5 for managing the storage location of the steel strip in the automatic warehouse S.

6 is a warehouse control device for retrieving the storage location of the steel strip in the automatic warehouse S, and entering and leaving the steel strip;
D1 to D3 are provided with steel strip detectors, and transport devices for transporting the steel strip between the manufacturing process and the entrances S1 to S3 of the automatic warehouse S. Transport control 71 to 73 control the transport devices D1 to D3. Device, 81 is a keyboard of the inventory and operation management device 5, 8
Reference numeral 2 denotes a display panel of an inventory / operation management device 5 using a CRT display device, A1 to A4 denote first manufacturing processes including rolling and annealing pickling process equipment, and B1 and B2 denote second manufacturing processes including annealing and cleaning process equipment. Steps C1 to C4 are third manufacturing steps including refinement step equipment, A11 to A14, B11, B12,
C11 to C14 are transmission / reception terminal devices for transmitting production instruction information and receiving production results between the production management computer 1 and each production process, and are operator input / output devices using a CRT display and a keyboard or a production process not shown. It is one or both of a production instruction and a production result automatic delivery device connected to the automatic control device. A21
A24, B21, B22, C21 to C24 are a display panel using a light emitting diode and a keyboard for inputting an actual product identification code and for instructing transport, and S is an automatic storage and unloading steel strip by the warehouse control device 6. Warehouse, S1-S
Reference numeral 3 denotes a doorway for loading and unloading steel strips in the automatic warehouse.

Next, the operation will be described. The production management computer 1 assigns an actual product identification code to each stock steel strip of the material procurement computer 2, selects the steel strip corresponding to the order information,
This is stored in the steel strip information file 12. The production management computer 1 creates a production process flow corresponding to, for example, steel type, plate thickness, plate width, surface finish, etc. of the order information stored in the order processing computer 3 in parallel with the production process. An identification symbol is assigned and stored in the order development file 11. Further, the production management computer 1 changes the steel strip information file 12 according to the delivery date of the order information stored in the order development file 11.
Are arranged in the order of production, and a production plan for the entire production process is created. According to this production plan, the transmission / reception terminal devices A21 to A24, B21, B22, C
It transmits to each manufacturing process by 21-C24.

When the production management computer 1 sends the transport instruction information of the steel strip to the inventory / operation management device 5 in parallel to the production process A1, for example, the inventory / operation management device 5 And the transfer instruction information is transmitted to the transfer control device 71. The warehouse control device 6 searches for the storage address of the steel strip in the automatic warehouse S, and issues the steel strip to the doorway S1.
The transport control device 71 transports the steel strip from the entrance S1 to the manufacturing process A1 by the transport device D1. Manufacturing process A1
The actual product identification code and the production record of the steel strip whose production has been completed in (1) are transmitted to the production management computer 1 via the transmitting / receiving terminal device A11.
The production result management information in the steel strip information file 12 is edited as shown in Table 1, for example. Production management computer 1
Transmits transmission instruction information (for example, Table 2) from the first manufacturing process A1 of the completed steel strip to the automatic warehouse S to the operation / inventory management device 5 in parallel with this, the inventory / operation management device 5 The transfer instruction information is transmitted from the first manufacturing process A1 of the completed steel strip to the entrance / exit S1 of the automatic warehouse S to the control device 71, and the transfer control device 71 uses the transfer device D1 to transfer the steel strip to the first manufacturing process A1. From the storage port S1.

[0014]

[Table 1]

[0015]

[Table 2]

Based on the results of the transportation, the inventory / operation management device 5
When the warehouse controller 6 instructs the warehouse controller 6 to store the steel strip in the automatic warehouse S, the warehouse controller 6 searches for an empty storage space in the automatic warehouse S and stores the steel strip in the storage space. The transfer result (storage address) is sent from the warehouse control device 6 to the stock / operation management device 5
Are stored in the inventory management file 7 of the inventory and operation management device 5, and the storage address management information is edited. Further, the transport result of the physical identification code is transmitted to the production management computer 1, and the production management computer 1 edits the transport result and also edits the inventory management information as shown in Table 3, for example. Further, when the production management computer 1 receives the production results from the manufacturing process, the shipping computer 4 instructs packing and shipping, edits the shipping results, and transmits the shipment completion information to the production management computer 1. Production management computer 1
Deletes the steel strip from the inventory management information.

[0017]

[Table 3]

On the other hand, as for the exit and transfer of the steel strip from the automatic warehouse S, the production management computer 1 uses the actual product identification code as a search key according to the production plan, for example, from the automatic warehouse S, for example, in the third manufacturing. The transfer instruction information to the process C1 is transmitted to the stock / operation management device 5. Inventory and operation management device 5
Is a doorway S3 from the storage location of the steel strip in the automatic warehouse S
Is transmitted to the warehouse control device 6. When the warehouse control device 6 conveys the steel strip searched in the automatic warehouse S to the entry / exit port S3, the inventory / operation management device 5 causes the conveyance control device 73 to perform, for example, the third manufacturing from the entry / exit port S3 of the steel strip. The transport device D3 transmits the transport instruction information to the process C1, and transports the steel strip to the third manufacturing process C1.

If the steel strip that has been processed in the first manufacturing process A1 shown in FIG. 2 is immediately processed in the third manufacturing process C2, the production management computer 1 shown in FIG. The transfer instruction information from A1 to the third manufacturing process C2 is transmitted to the inventory / operation management device 5. Operation and inventory management device 5
Transmits the transfer instruction information from the first manufacturing process A1 to the third manufacturing process C2 to the transfer control device 71, and transmits the transfer instruction information from the entrance / exit S1 to S3 to the warehouse control device 6,
Further, the transfer control device 73 transmits the transfer instruction information to the third manufacturing process C2 from the doorway S3. The steel strip is transported by the transport device D3 from the first manufacturing process A1 to the third manufacturing process C2 via the entrance S3. In this case, the automatic warehouse S shown in FIG. 2 functions as an inter-building transfer device between the first manufacturing process A and the third manufacturing process C. In this way, the conveyance of the steel strip is not limited in the conveyance direction such as each of the manufacturing processes A to B, B to C, C to A, C to B, A to C, and the like, and the entrances S1, S2, and S2 of the automatic warehouse. S3 is a port for both carrying in and out.

The stock / operation management device 5 can receive a plurality of pieces of instruction information of an arbitrary start point and an end point for entry, exit, and transportation, and can carry in the inventory at any time in accordance with the completion of the processing of each manufacturing process. In addition, a plurality of instructions according to the production plan can be accepted for dispatching, and a plurality of received and dispatched instructions already accepted from the production management computer 1 are canceled and re-executed at any time in accordance with advance or delay of progress in each manufacturing process. Instructions are available.

Since the production management computer 1 is used for production management in the whole factory including a plurality of manufacturing processes, it may be stopped for system maintenance for a variety of reasons two to three times a month for 2 to 4 hours. / Times. Production management computer 1
For example, when the operator inputs the physical identification code of the steel strip using the keyboard A23 and instructs the storage of the steel strip completed in the first manufacturing process A3 during the suspension of the operation, for example, the inventory control device 5 operates, for example, the transport control device. The transfer instruction information from the first manufacturing process A3 to the entry / exit port S1 is transmitted to 71, the transfer instruction information to the empty address of the automatic warehouse S is transmitted to the warehouse control device 6, and the steel strip is transported to the empty address. Is done.

If the production management computer 1 needs to be transported to the third manufacturing step C4 while the production management computer 1 is inactive, the transport instruction information is sent from the production management computer 1 to the inventory / operation management device 5 before the suspension. When the inventory / operation management device 5 transmits the transfer instruction information to the entrance / exit S3 to the warehouse control device 6 based on the transfer instruction information, the steel strip is transferred to the automatic warehouse S.
Is transferred to the third manufacturing process C4 from the address. When the production management computer 1 returns, the plurality of transport results are transmitted from the inventory / operation management device 5 to the production management computer 1,
The production management computer 1 performs a performance process for editing the production performance management information and the inventory management information, and starts operating normally.

When it becomes necessary to carry out an inventory work to check the actual condition of the steel strip in the automatic warehouse S, the inventory / operation management device 5
The stock information (storage address and the actual item identification code of the steel strip at the address) is displayed on the display panel 82 of, and when the actual item identification code or the storage address is inventory-entered using the keyboard 81, the steel strip at the storage address is automatically stored in the automatic warehouse S. Departure from. When the operator confirms the delivered steel strip on the actual product and re-enters the actual product identification code or the storage address on the keyboard 81, the steel strip is returned to the original address. The transfer devices D1 to D3 may be, for example, any of a transfer trolley, an automatic transfer system, an overhead traveling crane, and a composite and transfer system thereof. Even in a manned transfer device, a transfer control by keyboard input by an operator or output from a CRT or the like. Alternatives such as the device 71 are also included.

[0024]

As described above, according to the present invention, it is possible to convey a steel strip conveyance instruction, a production instruction, an inventory management, and the like by an unmanned person or a small number of persons. In addition, by unifying all the systems by using the actual product identification code attached to each steel strip, labor management of transport management and inventory management can be saved, the management system is improved, and troubles such as transport delay are reduced. When the automatic warehouse is arranged as shown in FIG. 2, the automatic warehouse can be used as an inter-building transport device, so that it is not necessary to separately install the inter-building transport device, and the equipment cost and the installation place can be saved. Since the material can be transported to the next manufacturing process without being affected by the suspension of the production management computer, effects such as an improvement in production efficiency can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an entire system according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a layout of a factory.

FIG. 3 is a diagram showing a flow of transmission and reception.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 Production management computer 2 Material procurement computer 3 Order processing computer 4 Shipping computer 5 Inventory and operation management device 6 Warehouse control device 7 Inventory management file 11 Order development file 12 Steel strip information file 71 to 73 Transport control device 81 Keyboard 82 Display panel S Automatic warehouse S1 to S3 Doorway D1 to D3 Steel strip conveyor A1 to A4 First manufacturing process (rolling and annealing pickling equipment) B1, B2 Second manufacturing process (annealing and cleaning equipment) C1 C4 Third manufacturing process (refining equipment) A11-A14, B11, B12, C11-C14
Transmission / reception terminal devices A21 to A24, B21, B22, C21 to C24
Display and keyboard

──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Tetsuyuki Ohama 3434 Shimada, Hikari-shi, Yamaguchi Pref. Inside Nippon Steel Corporation Hikari Works (72) Inventor Kazuyuki Ishii 46-59 Nakahara, Tobata-ku, Kitakyushu New Nippon Steel Corporation Machinery & Plant Division (56) References JP-A-61-232026 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65G 1/00-1/20 B21B 37/00 B23Q 37/00-41/08 G06F 17/60

Claims (1)

(57) [Claims] 1. A management system is constituted by a production management computer, an inventory / operation management device, a transport control device, and a warehouse control device. (1) The production management computer assigns an actual item identification code to each material and places an order. While accepting the material corresponding to the information, create a manufacturing process flow based on the contents of the order information, assign the physical identification code to the manufacturing process flow, and send the manufacturing instruction information to the manufacturing process according to the allocated manufacturing process flow. Transmit and send the transfer instruction information to the inventory and operation management device, receive the production result from the manufacturing process, edit the production result management information, and send the production instruction information to the manufacturing process according to the edited production result management information , Receive the transfer results from the inventory and operation management device, edit the inventory management information,
The transport instruction information is transmitted to the inventory / operation management device according to the edited inventory management information. (2) The inventory / operation management device
Transmitting the transfer instruction information to the transfer control device and the warehouse control device, receiving the transfer result from the transfer control device and the warehouse control device, editing the yard address management information, and transmitting the transfer result to the production management computer, ( 3) The transport control device transports the material by the transport device according to the transport instruction information, and transmits the transport result to the inventory / operation management device. (4) The warehouse control device transmits the material in the automatic warehouse according to the transport instruction information. A manufacturing management method for a factory comprising a plurality of manufacturing processes, wherein a storage location address is searched, the material is put in or taken out of the warehouse, and a transfer result is transmitted to an inventory / operation management device.