JP5928074B2 - Order change device and order change method - Google Patents

Description

  The present invention relates to an order change device and an order change method for changing an order of a rolled product when a trouble occurs in a hot rolling line for producing the rolled product.

  Conventionally, a hot rolling line for producing a rolled product by hot rolling a metal material such as a steel material has been proposed. Generally, in a hot rolling line, a heating furnace that heats a metal material to be hot rolled (hereinafter referred to as a material to be rolled), a width press device that reduces the width of the material to be rolled, and rolling of the material to be rolled. Various apparatuses such as a rough rolling apparatus and a finishing rolling apparatus for performing processing are installed. The material to be rolled is subjected to heat treatment and rolling by each device of the hot rolling line, and is thus commercialized.

  Moreover, when manufacturing a rolled product using a to-be-rolled material, the information (henceforth an order) which shows the request | requirement of the consumer who ordered the rolled product is matched beforehand with a to-be-rolled material. The order includes product specifications such as the composition, weight and dimensions of the rolled product required by the customer, and customer information such as the requested quantity and delivery date of the rolled product, and determines various conditions necessary for manufacturing the rolled product. To do. That is, a slab is cast according to the order of a rolled product, the slab after casting is heated as a material to be rolled, and the material to be rolled after heating is rolled.

  In addition, as a prior art of the hot rolling line as described above, for example, each facility is controlled by a business computer incorporating product information, and the preceding rolled material is finish-rolled, and at the same time, the rolled material that follows Is extracted on the line from the heating furnace (see Patent Document 1). In the hot rolling line described in Patent Document 1, when a problem occurs in some finishing rolling stands during finish rolling of the preceding material to be rolled (hereinafter referred to as the preceding material), the finishing rolling stand with this trouble is used. Releases the reduction after the finish rolling of the preceding material. Thereafter, the material to be rolled subsequent (hereinafter referred to as the subsequent material) is rolled by a usable finish rolling stand without any trouble.

JP 2009-279537 A

  However, in the above-described conventional technology, when a trouble such as a failure occurs in an apparatus for heat-treating or rolling a preceding material in a hot rolling line, the apparatus in which the trouble has occurred is initially associated with a subsequent material. It becomes impossible to satisfy the heat treatment conditions or rolling conditions of the order. This makes it difficult to heat-treat or roll the following material according to its original order.

  Alternatively, when the succeeding material in the heating furnace is heated to a temperature determined by the original order, it is extracted from the heating furnace regardless of whether or not a trouble with the preceding material has occurred. In this case, the succeeding material after extraction from the heating furnace may stagnate unintentionally on the hot rolling line due to a trouble related to the preceding material. Such a stagnation of the succeeding material causes an excessive temperature drop of the succeeding material, and as a result, it becomes difficult to width-press or roll the succeeding material according to its original order.

  In any of the above cases, it is difficult to operate the hot rolling line after the trouble occurs and to process the subsequent material extracted from the heating furnace into a rolled product according to the original order. . For this reason, when the succeeding material is a slab in the heating furnace or before the width press, the slab is cooled to a predetermined temperature and returned to the slab yard. The succeeding material cannot be commercialized. In this case, the hot rolling line must be stopped for cooling and taking out the slab as described above, and this slab treatment is not only time consuming and labor intensive, but also due to the hot rolling line being stopped. There is a problem that enormous energy loss occurs.

  Alternatively, when the succeeding material is a material to be rolled after width pressing, the rolling process of the succeeding material is continued, and a rolled plate of a standard size having a general-purpose possibility is wound in a coil shape (Hereinafter referred to as a coil) must be manufactured. In this case, since the succeeding material is rolled using the rolling conditions that are not in the ordered order, most of the coils manufactured thereby do not conform to the order. Coils that do not conform to such orders cannot be commercialized and are discarded as scrap. That is, during the period in which the treatment of the following material is performed by the hot rolling line, not only the production efficiency of the rolled product (coil) according to the order is reduced, but also the following material is lost as scrap. There is a problem.

  The present invention has been made in view of the above circumstances, and even when a trouble related to the preceding material occurs in the hot rolling line, the succeeding material can be rolled according to the ordered order. An object of the present invention is to provide an order changing device and an order changing method capable of reducing energy loss of a hot rolling line and useless loss of a material to be rolled and commercializing a succeeding material according to an order.

  In order to solve the above-described problems and achieve the object, the order changing device according to the present invention includes an order database for accumulating orders including product specifications of ordered rolled products, and a material to be rolled from a heating furnace of a hot rolling line. When trouble occurs in the hot rolling line after extracting the material, the material information indicating the current state of the subsequent material that is the material to be rolled subsequent to the material to be rolled and is located in the heating furnace, and the trouble is Production of a rolled product that can be produced by the current hot rolling line using the succeeding material based on the line information indicating the current state of the generated hot rolling line and the order acquired from the order database. A hot-rolling condition determined by a product specification included in the manufacturable order from the manufacturable order creation section for creating a manufacturable order and the order database A candidate order selection unit that selects an order that satisfies the slab condition as a candidate order to be associated with the succeeding material, and an order change unit that changes the current order associated with the succeeding material to the candidate order; , Provided.

  Further, in the above-described invention, the order change device according to the present invention acquires the latest order from the order database, confirms the arrangement status of the latest order, and the latest order is still in the rolling process. It further comprises an arrangement status confirmation unit that determines whether or not an unrolled order that has not been arranged, and the manufacturable order creation unit uses the latest order that has been determined to be an unrolled order, The manufacturable order is created.

  The order change apparatus according to the present invention further includes a past order database that accumulates orders of rolled products manufactured in the past as past orders in the above-described invention, and the candidate order selection unit includes the latest order If it is determined that the order is not an unrolled order, a plurality of past orders having a relatively high order frequency are acquired from the past order database, and the subsequent material is used among the plurality of acquired past orders. A past order that satisfies the dimensions of the rolled product that can be manufactured in this manner is selected as a past candidate order that is associated with the succeeding material, and the order changing unit is determined by the current order associated with the succeeding material. The size of the rolled product is changed to the size of the rolled product determined by the past candidate orders. .

  In the order change device according to the present invention, in the above invention, the order change unit selects the same order as the candidate order associated with the succeeding material among the orders stored in the order database. It is characterized by deleting.

  Further, the order change method according to the present invention is a material to be rolled subsequent to the material to be rolled when trouble occurs in the hot rolling line after extracting the material to be rolled from a heating furnace of the hot rolling line. Order for accumulating orders including material information indicating the current state of the succeeding material located in the heating furnace, line information indicating the current state of the hot rolling line in which the trouble has occurred, and product specifications of the ordered rolled product A manufacturable order creation step for creating a manufacturable order of a rolled product that can be produced by the current hot rolling line using the succeeding material based on the order acquired from the database; The order satisfying the hot rolling condition and the slab condition determined by the product specifications included in the manufacturable order is associated with the succeeding material. A candidate order selection step of selecting as a complement order, characterized in that it comprises a, and order changing step of changing the current order associated with the said trailing member on the candidate order.

  Further, in the above-described invention, the order changing method according to the present invention acquires the latest order from the order database, confirms the arrangement status of the latest order, and the latest order is still in the rolling process. It further includes an arrangement status confirmation step for determining whether or not the order is an unrolled unrolled order, and the manufacturable order creation step uses the latest order determined to be an unrolled order, The manufacturable order is created.

  Further, in the order changing method according to the present invention, in the above invention, when it is determined that the latest order is not an unrolled order, a past order that accumulates orders of rolled products manufactured in the past as past orders. A past order acquisition step of acquiring a plurality of past orders having a relatively high order frequency from the database, and a past satisfying dimensions of a rolled product that can be manufactured using the succeeding material among the plurality of past orders. A past candidate order selection step of selecting an order as a past candidate order to be associated with the succeeding material, and a dimension of the rolled product determined by the current order associated with the succeeding material, the past candidate order And a dimension changing step for changing to a dimension of the rolled product determined by.

  The order change method according to the present invention is the order database update step of deleting the same order as the candidate order associated with the succeeding material among the orders stored in the order database in the above invention. Is further included.

  According to the present invention, even if a trouble related to the preceding material occurs in the hot rolling line, the succeeding material can be rolled in accordance with the ordered order. As a result, the energy loss of the hot rolling line and the material to be rolled can be achieved. As a result, it is possible to reduce the wasteful loss and to produce the succeeding material according to the order.

FIG. 1 is a block diagram showing a configuration example of an order change apparatus according to an embodiment of the present invention. FIG. 2 is a flowchart showing an example of the order changing method according to the embodiment of the present invention.

  Hereinafter, preferred embodiments of an order change device and an order change method according to the present invention will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiment.

(Embodiment)
FIG. 1 is a block diagram showing a configuration example of an order change apparatus according to an embodiment of the present invention. FIG. 1 shows a hot rolling line 10 to which the order changing device 11 according to the present embodiment is applied, and various devices related to the hot rolling line. Below, after explaining the hot rolling line 10, the order change apparatus 11 is demonstrated.

  First, the hot rolling line 10 to which the order change apparatus 11 concerning this Embodiment is applied is demonstrated. As shown in FIG. 1, a hot rolling line 10 includes a heating furnace 1 that heats a material to be rolled, a width press device 2 that performs a width press to reduce the width of the material to be rolled, and a material to be rolled. A conveying device 3 for conveying, a rough rolling device 4 for roughly rolling a material to be rolled, a finishing rolling device 5 for finish rolling the material to be rolled, and a cooling device 6 for cooling a rolled plate produced by the finish rolling. And a coiler 7 for winding the cooled rolled plate in a coil shape.

  The heating furnace 1 receives the slab cast by the continuous casting apparatus 100 as a material to be rolled, and heats the material to be rolled up to a temperature determined by the order. The heating furnace 1 puts the material to be rolled after the heat treatment into the conveying device 3. The conveyance apparatus 3 is implement | achieved using the some conveyance roll 3a etc., and conveys a to-be-rolled material along the conveyance direction shown in FIG. Specifically, the conveyance device 3 conveys the material to be rolled extracted from the heating furnace 1 to the width press device 2. Further, the conveying device 3 conveys the material to be rolled after the width pressing from the width pressing device 2 to the rough rolling device 4.

  The width press device 2 intermittently presses the material to be rolled every time the conveying device 3 conveys the material to be rolled by a predetermined conveyance amount. The width press device 2 repeats the width press from the front end to the tail end of the material to be rolled, thereby killing the material to be rolled.

  The rough rolling device 4 is realized by using a plurality of stands of a rough rolling mill 4a. The rough rolling device 4 receives the material to be rolled conveyed from the width press device 2, and performs rough rolling on the received material to be rolled. In this case, the rough rolling device 4 performs rough rolling on the material to be rolled continuously from the front end to the tail end of the material to be rolled using a plurality of stands of the rough rolling machine 4a.

  The finishing rolling device 5 is realized by using a plurality of stand finishing mills 5a. The finish rolling device 5 receives the material to be rolled sent from the rough rolling device 4 as indicated by the broken line arrow in FIG. 1, and finish-rolls the accepted material to be rolled. In this case, the finish rolling device 5 uses a plurality of stand finish rolling mills 5a to finish-roll the material to be rolled in the thickness direction continuously from the front end to the tail end of the material to be rolled. Thus, the finish rolling device 5 manufactures a rolled plate having dimensions (plate thickness, plate width, etc.) required as a rolled product.

  The cooling device 6 cools the rolled sheet from the finish rolling device 5 using a coolant such as cold water or cold air. The coiler 7 winds up the rolled sheet after the cooling treatment in a coil shape. For example, the rolled plate wound into a coil shape, that is, a coil, is shipped as a rolled product along an order received from a consumer.

  The operating status of the hot rolling line 10 and the order of the rolled product described above are controlled and managed by the business computer 101, the process computer 102, and the control device 103 shown in FIG.

  The business computer 101 is normally in a state in which it is possible to accept an order for a rolled product. Each time a rolled product is received from a consumer, the business computer 101 acquires and manages the ordered rolled product. In addition, the business computer 101 transmits various types of information shown in the order of the rolled product that has been received (hereinafter referred to as an order received) to the process computer 102.

  The process computer 102 receives an order received from the business computer 101 and acquires product specifications and customer information of the rolled product included in the order received. Each time, the process computer 102, based on the product specifications and customer information of the rolled product, the slab casting conditions required for the production of the rolled product requested by the customer, the heat treatment conditions and the rolling conditions of the material to be rolled. Set the rolled product manufacturing conditions. The casting conditions set in this way are applied to the continuous casting apparatus 100 shown in FIG. 1, and the continuous casting apparatus 100 casts a slab according to the casting conditions. Further, the process computer 102 associates the rolled product manufacturing conditions set as described above with the slab (rolled material) cast by the continuous casting apparatus 100, and controls the rolled product manufacturing conditions for each rolled material. To the device 103.

  The control device 103 controls the operation of the hot rolling line 10 for each material to be rolled, while maintaining the correspondence between the rolled product production conditions and the material to be rolled, based on the rolled product production conditions acquired from the process computer 102. To do. Specifically, the rolled product manufacturing conditions from the process computer 102 include heat treatment conditions, conveyance conditions, width press conditions, rough rolling conditions, finish rolling conditions, cooling conditions, and winding conditions for the material to be rolled. The control device 103 controls the heating furnace 1 so that the material to be rolled corresponding to the heat treatment condition is heat-treated to a temperature according to the heat treatment condition. Moreover, the control apparatus 103 controls the conveying apparatus 3 so that the to-be-rolled material of the conveyance speed according to a conveying condition may be conveyed, and the to-be-rolled material corresponding to a width press condition is this width press condition (for example, width reduction amount). The width press device 2 is controlled so that the width is pressed along the line. Further, the control device 103 controls the rough rolling device 4 so that the material to be rolled corresponding to the rough rolling condition is roughly rolled along the rough rolling condition, and the material to be rolled corresponding to the finish rolling condition is finished in this finish. The finish rolling device 5 is controlled so as to perform finish rolling according to the rolling conditions. In addition, the control device 103 controls the cooling device 6 so as to cool the material to be rolled (rolled plate) corresponding to the cooling condition along the cooling condition (for example, a cooling pattern), and corresponds to the winding condition. The coiler 7 is controlled so that the rolled plate is wound along the winding conditions (for example, tension).

  In the hot rolling line 10 as described above, the material to be rolled that precedes the material to be rolled in the heating furnace 1, that is, the preceding material 8 is usually heated according to the rolled product manufacturing conditions based on the order received. Processed, width pressed, rough rolled, finish rolled, cooled, and then wound into a coil. As a result, a coil (rolled product) according to the order received corresponding to the preceding material 8 is manufactured. Note that the material to be rolled subsequent to the preceding material 8, that is, the succeeding material 9, is heat-treated to a temperature in accordance with the rolling product manufacturing conditions based on the order received, and then extracted from the heating furnace 1 to be the preceding material. Follow 8.

  On the other hand, when a trouble occurs in the hot rolling line 10 after extracting the preceding material 8 from the heating furnace 1, the preceding material 8 is removed from the hot rolling line 10. The control device 103 collects information (hereinafter referred to as line information) indicating the current state of the hot rolling line 10 in which this trouble has occurred from the hot rolling line 10. In addition, as troubles of this hot rolling line 10, for example, troubles in the heating furnace 1, troubles in the width press apparatus 2, troubles such as occurrence of rolling roll flaws in the rough rolling apparatus 4 or the finishing rolling apparatus 5, troubles in the cooling apparatus 6 And troubles of the coiler 7 and the like. That is, the line information indicates the current status (including trouble status) of the heating furnace 1, the width press device 2, the rough rolling device 4, the finish rolling device 5, the cooling device 6, and the coiler 7.

  The process computer 102 monitors the current status of the hot rolling line, such as whether or not a trouble has occurred in the hot rolling line 10, based on the current status information of the hot rolling line 10 acquired from the control device 103. Such a process computer 102 determines that a trouble has occurred in the hot rolling line 10 on the basis of the line information acquired from the control device 103, and an order change device indicating that the trouble has occurred in the hot rolling line 10. 11 is informed. The order change device 11 acquires the determination result of the trouble occurrence of the hot rolling line 10 from the process computer 102, starts up using this as a trigger, and receives the current order associated with the succeeding material 9 in the heating furnace 1. Change the order (hereinafter referred to as the initial order).

  Next, the configuration of the order change device 11 according to the embodiment of the present invention will be described. The order change device 11 is a device that changes the initial order of the succeeding material 9 in the heating furnace 1 when a trouble occurs in the hot rolling line 10. As shown in FIG. 1, the order change device 11 includes an input unit 12 for inputting various information, a display unit 13 for displaying information related to order change, an order database 14 for storing received orders, and past received orders. Are stored in the past order database 15, a processing unit 16 that executes various processes for order change, and a control unit 17 that controls these components.

  The input unit 12 is realized using an input device such as a keyboard and a mouse, and inputs various types of information to the control unit 17 in response to an input operation by the operator. The input information by the input unit 12 includes, for example, instruction information for the control unit 5, equipment specification information of the hot rolling line 10, various parameters necessary for executing the order change process, and the like.

  The display unit 13 displays various information instructed to be displayed by the control unit 17. Specifically, the display unit 13 grasps the current status of the hot rolling line 10 or changes the order of the succeeding material 9 such as information input by the input unit 12, the trouble occurrence status of the hot rolling line 10 and the result of order change processing. Displays various information useful for processing.

  The order database 14 stores orders for rolled products. The order receipt is information including product specifications and customer information of the rolled product that has been ordered. The product specifications in the order received are the specifications of the rolled product requested by the customer. For example, the rolled product composition, the type of metal such as steel grade, strength, dimensions (width, length, thickness), weight, etc. The specifications are shown. The consumer information in the order received includes information for identifying the consumer, the requested quantity and delivery date of the rolled product. Such a received order is sequentially stored in the order database 14 by the business computer 101 every time the received order is input to the business computer 101.

  Here, the product specifications in the above-mentioned order received determine various conditions for the slab (hereinafter referred to as slab conditions) to be introduced into the heating furnace 1 and the rolled product manufacturing conditions in the hot rolling line 10. That is, the continuous casting apparatus 100 continuously casts a slab that can satisfy the product specifications in the order received. The hot rolling line 10 manufactures a rolled product that can satisfy the product specifications in the order received. The slab conditions include the metal type such as the steel type constituting the slab, the slab care conditions such as the cutting conditions of the slab surface layer, the slab part conditions such as the top side or the bottom side of the continuous casting apparatus 100, and the slab conditions of the slab. Includes information about slabs such as casting conditions and slab weight. In addition, as described above, the rolled product manufacturing conditions include the heat treatment conditions, the conveying conditions, the width pressing conditions, the rough rolling conditions, the finish rolling conditions, the cooling conditions, and the winding conditions of the material to be rolled. In particular, among these conditions, the width press condition, the rough rolling condition, and the finish rolling condition are collectively defined as hot rolling conditions. That is, the hot rolling conditions include various specifications relating to width press or rolling such as the temperature of the material to be rolled, the width killing amount (width reduction amount) of the material to be rolled, the width, thickness, length and weight of the rolled plate. Including.

  The past order database 15 stores order orders (hereinafter referred to as past orders) of a plurality of rolled products manufactured in the past by the hot rolling line 10. Specifically, based on the control of the business computer 101, the past order database 15 sequentially accumulates orders received from the present date up to a predetermined period before (for example, three months before) as past orders. In this case, the business computer 101 is informed of, for example, an order received for a rolled product that has been successfully manufactured by the hot rolling line 10 from the process computer 102. Each time, the business computer 101 moves the order received for the rolled product after the completion of manufacture from the order database 14 to the past order database 15. The past order includes the product specifications and customer information of the rolled product received in the past.

  The processing unit 16 performs various processes necessary for changing the initial order of the material to be rolled existing in the heating furnace 1 of the hot rolling line 10 after the occurrence of the trouble. As shown in FIG. 1, the processing unit 16 includes an arrangement status confirmation unit 16a, a manufacturable order creation unit 16b, a candidate order selection unit 16c, and an order change unit 16d.

  The arrangement status confirmation unit 16a is for confirming the arrangement status of an order receipt necessary for changing the initial order of the succeeding material 9. Specifically, the arrangement status confirmation unit 16a acquires a predetermined order, for example, the latest order from the order database 14, and confirms the arrangement status of the acquired order. Thereby, the arrangement status confirmation unit 16a determines whether or not the latest order is an order that has not yet been arranged in the rolling process.

  Here, the order status of the order received corresponds to the progress status of the order received for the rolled product manufacturing process including the slab casting process. For example, the arrangement status of an order is divided into “rolled” and “unrolled”, and this “unrolled” is further divided into “uncast” and “cast and unrolled”. A sales order whose arrangement status has already been rolled is a sales order that has already been arranged up to the rolling process (hereinafter referred to as a rolled sales order). That is, the material to be rolled corresponding to the rolled order has already been rolled. On the other hand, a sales order whose arrangement status is unrolled is a sales order that has not yet been arranged until the rolling process (hereinafter referred to as an unrolled sales order). Specifically, the order that is not yet cast is an order that has not yet been arranged in the manufacturing process of the rolled product (hereinafter referred to as an uncast order). That is, the uncast order is an unordered order, and the slab and the material to be rolled corresponding to the uncast order are not yet present in the manufacturing process of the rolled product. In addition, an order that is already cast and not rolled (hereinafter abbreviated as “cast”) is an order that is arranged from the casting process to before the rolling process (hereinafter referred to as a cast order). . That is, the slab or material to be rolled corresponding to a cast order received has been cast but not yet rolled.

  The manufacturable order creation unit 16b is a rolled product that the current hot rolling line 10 can manufacture using the succeeding material 9 when a trouble occurs in the hot rolling line 10 after extracting the preceding material 8 from the heating furnace 1. Order (hereinafter referred to as manufacturable order). Specifically, the manufacturable order creation unit 16b creates a manufacturable order based on the material information of the succeeding material 9, the line information of the hot rolling line 10, and the order received from the order database 14. create. The material information of the succeeding material 9 is information indicating the current state of the succeeding material 9 located in the heating furnace 1 of the hot rolling line 10 after the trouble has occurred. The line information of the hot rolling line 10 is information indicating the current state of the hot rolling line 10 after the trouble occurs. The order received by the manufacturable order creation unit 16b when the manufacturable order is created is the order received from the order database 14, and the latest order received by the arrangement status confirmation unit 16a is determined to be an unrolled order. It is an order.

  The candidate order selection unit 16c selects a manufacturable order candidate (hereinafter referred to as a candidate order) associated with the succeeding material 9 instead of the original order of the succeeding material 9. Specifically, the candidate order selection unit 16c satisfies the hot rolling conditions and slab conditions determined by the product specifications included in the manufacturable order created by the manufacturable order creation unit 16b from the order database 14. Are selected as candidate orders to be associated with the current succeeding material 9.

  Further, the candidate order selection unit 16c compares the order frequency from the past order database 15 when it is determined that the latest order used for creating the manufacturable order is not an unordered order. Get multiple historical orders. The candidate order selection unit 16c is configured to associate a past order that satisfies the dimensions of the rolled product that can be manufactured using the current succeeding material 9 among the plurality of acquired past orders with the current succeeding material 9. Select as a candidate order.

  The order changing unit 16d changes the current initial order of the succeeding material 9 in the hot rolling line 10 after the trouble has occurred to an order of a rolled product that can be manufactured. Specifically, the order changing unit 16d selects the initial order of the succeeding material 9 located in the heating furnace 1 of the hot rolling line 10 after the occurrence of the trouble by the candidate order selecting unit 16c described above. Change to In this case, the order changing unit 16d transmits the selected candidate order to the process computer 102 and instructs the process computer 102 to change the initial order of the succeeding material 9 to this candidate order. Thereafter, the order changing unit 16d deletes the same order as the candidate order associated with the succeeding material 9 from the orders received in the order database 14 according to the instruction to the process computer 102.

  Further, when it is determined that the latest order used for creating the above-described manufacturable order is not an unrolled order, the order changing unit 16d uses the succeeding material 9 for the rolled product to be manufactured. The dimensions are changed to those of general rolled products with high versatility. Specifically, the order changing unit 16d determines the dimensions of the rolled product determined by the initial order of the current succeeding material 9 located in the heating furnace 1 of the hot rolling line 10 after the trouble has occurred, as described above. Change to the dimensions of the rolled product determined by the order. In this case, the order changing unit 16d transmits the dimensions of the rolled product determined by the past candidate orders to the process computer 102, and sets the dimensions of the original rolled product corresponding to the succeeding material 9 to the past candidate orders. Instruct the process computer 102 to change to the size of the rolled product based.

  The control unit 17 is realized using a memory that stores a program or the like for realizing the function of the order changing device 11 and a CPU or the like that executes the program in the memory. The control unit 17 controls each operation of the input unit 12, the display unit 13, and the processing unit 16, and controls input / output of electric signals to / from these components.

  Moreover, the control part 17 controls the process part 16 so that the process required in order to change the initial order of the succeeding material 9 in the hot rolling line 10 after trouble generation may be performed. Specifically, when a trouble occurs in the hot rolling line 10, the control unit 17 acquires information indicating a determination result of the trouble occurrence in the hot rolling line 10 from the process computer 102. The control unit 17 uses the information from the process computer 102 as a trigger to start executing the processes of the above-described arrangement status confirmation unit 16a, manufacturable order creation unit 16b, candidate order selection unit 16c, and order change unit 16d. Next, the processing unit 16 is controlled. The control unit 17 repeats the control of the processing unit 16 every time the information indicating the determination result of the trouble occurrence in the hot rolling line 10 is acquired from the process computer 102.

  Next, an order changing method according to the embodiment of the present invention will be described. FIG. 2 is a flowchart showing an example of the order changing method according to the embodiment of the present invention. In the order changing method according to the present embodiment, when a trouble occurs in the hot rolling line 10 after extracting the preceding material 8 from the heating furnace 1 shown in FIG. 1, the processing unit 16 of the order changing device 11 (see FIG. 1). ) Executes the processing procedure shown in FIG. Accordingly, the initial order of the succeeding material 9 is changed in accordance with the current state of the hot rolling line 10 after the occurrence of the trouble and the current state of the succeeding material 9 in the heating furnace 1.

  That is, as shown in FIG. 2, after the trouble has occurred in the hot rolling line 10, first, the processing unit 16 obtains the order of the rolled product necessary for changing the initial order of the succeeding material 9 (step S101), the arrangement status of the acquired order is confirmed (step S102). Specifically, in steps S101 and S102, the arrangement status confirmation unit 16a acquires the latest order from the plurality of order orders stored in the order database 14, and the arrangement status of the latest order received. Confirm. Here, the order received in this way from the order database 14 may be a rolled-up received order or an unrolled received order. The arrangement status confirmation unit 16a determines whether the latest sales order is an unrolled sales order by confirming the arrangement status of the acquired latest sales order.

  When the latest order received by the arrangement status confirmation unit 16a is an unrolled order (step S103, Yes), the processing unit 16 is located in the heating furnace 1 in the hot rolling line 10 after the occurrence of the trouble. An order for a rolled product that can be manufactured using the material to be rolled is created (step S104). Specifically, in step S104, the manufacturable order creation unit 16b includes the material information of the succeeding material 9, the line information of the hot rolling line 10, and the latest order that the arrangement status is unrolled. In addition, a manufacturable order capable of commercializing the current succeeding material 9 is created.

  For example, the manufacturable order creation unit 16 b acquires material information of the succeeding material 9 and line information of the hot rolling line 10 from the process computer 102. In addition, the order confirmation unit 16a obtains an order that has been confirmed as an unrolled order. The manufacturable order creation unit 16 b uses the succeeding material 9 in the heating furnace 1 by the current hot rolling line 10 based on the material information of the succeeding material 9 and the line information of the hot rolling line 10. Product specifications such as dimensions, weight, and composition of the rolled product that can be manufactured are set. Next, the manufacturable order creation unit 16b replaces the product specification included in the acquired unrolled order received with the product specification set as described above. Thereby, the manufacturable order creation unit 16b creates manufacturable orders taking into account the current status of the hot rolling line 10 and the succeeding material 9 after the occurrence of the trouble. This manufacturable order is an order for a rolled product that can be produced using the succeeding material 9 by the hot rolling line 10 at the present time after the occurrence of the trouble, and the arrangement status is unrolled (uncast or cast). is there.

  After creating the manufacturable order in step S104, the processing unit 16 selects from the order database 14 candidates for manufacturable orders, that is, candidate orders associated with the current succeeding material 9 instead of the initial order of the succeeding material 9. Is selected (step S105). Specifically, in step S105, the candidate order selection unit 16c first checks the hot rolling conditions and slab conditions determined by the product specifications included in the manufacturable order in step S104. For example, the candidate order selection unit 16c confirms the temperature of the material to be rolled, the width killing amount of the material to be rolled, the width, thickness, length of the rolled plate, and the weight of the upper limit of equipment as the hot rolling conditions based on the manufacturable order. To do. Further, the candidate order selection unit 16c confirms the slab metal type, the slab care condition, the slab part condition, and the slab weight as the slab condition based on the manufacturable order. The candidate order selection unit 16c searches the order orders stored in the order database 14 for orders that satisfy the specifications of the hot rolling conditions and the specifications of the slab conditions. As a result, the candidate order selection unit 16c acquires an order that matches the hot rolling conditions and slab conditions of the manufacturable order, or an order that includes the hot rolling conditions and slab conditions of the manufacturable order. The candidate order selection unit 16c selects the order received by searching from the order database 14 in this way as a candidate order associated with the current succeeding material 9.

  In this step S105, when the candidate order selection unit 16c searches for a plurality of received orders satisfying the hot rolling conditions and the slab conditions of the manufacturable orders, the candidate order selecting unit 16c is most likely to be the manufacturable order. One including the approximate hot rolling conditions and slab conditions is selected as a candidate order.

  After selecting the candidate order in step S105, the processing unit 16 changes the order associated with the current succeeding material 9 to the selected candidate order (step S106). Specifically, in step S106, the order changing unit 16d transmits the candidate order selected in step S105 to the process computer 102, and changes the initial order of the succeeding material 9 to the transmitted candidate order. The process computer 102 is instructed. The process computer 102 changes the initial order of the succeeding material 9 to this candidate order based on an instruction from the order changing unit 16d. In this way, the order changing unit 16d changes the initial order of the succeeding material 9 located in the heating furnace 1 of the hot rolling line 10 after the trouble has occurred to the candidate order selected in step S105 described above. .

  The process computer 102 associates the candidate order acquired from the order changing unit 16d with the succeeding material 9 in the heating furnace 1, and controls to manufacture a rolled product according to the product specifications included in the candidate order. Instruct the device 103. The control device 103 controls each device of the hot rolling line 10 based on the rolled product manufacturing conditions determined by the candidate order acquired from the process computer 102. As a result, the hot rolling line 10 uses the trailing material 9 in the heating furnace 1 to manufacture a rolled product such as a coil along the candidate order.

  After the initial order of the succeeding material 9 is changed to the candidate order in step S106, the processing unit 16 updates the order database 14 (step S107) and ends this process. In this step S107, the order changing unit 16d has converted the order orders that are the same as the candidate orders associated with the succeeding material 9 out of the order orders stored in the order database 14 into a rolled product as described above. Delete as an order. The order received by the update process of the order database 14 is the order received as a candidate order selected by the candidate order selection unit 16c in step S105 described above.

  On the other hand, when the latest order received by the arrangement status confirmation unit 16a described above is not an unrolled order (step S103, No), the processing unit 16 creates a manufacturable order corresponding to the succeeding material 9. Instead, the product size of the original order of the succeeding material 9 is changed to the product size of the rolled product that may be ordered in the near future.

  That is, the processing unit 16 first obtains a past order with a relatively high order frequency from the past order database 15 (step S108). In step S108, the candidate order selection unit 16c determines the order reception frequency of the past orders for a plurality of past orders accumulated in the past order database 15 before a predetermined period, for example, the nearest three months before the present. Repeat determination processing is performed. Next, the candidate order selection unit 16c acquires a higher order and a predetermined number of past orders from the past order database 15 in descending order of order frequency in the predetermined period based on the result of the repeat determination process.

  Next, the process part 16 selects the candidate of the past order applicable to the to-be-rolled material in the heating furnace 1 in the hot rolling line 10 after a trouble occurrence, ie, the succeeding material 9, (step S109). In step S <b> 109, the candidate order selection unit 16 c acquires material information of the succeeding material 9 and line information of the hot rolling line 10 from the process computer 102. Next, the candidate order selection unit 16c, based on the acquired material information of the succeeding material 9 and the line information of the hot rolling line 10, the current slab condition of the succeeding material 9 and the current hot rolling line. 10 confirms the hot rolling conditions that can be handled. In addition, each item of this slab condition and hot rolling condition is the same as that of the case of step S105 mentioned above. Next, candidate order selection part 16c searches the past order which satisfies each item of these hot rolling conditions, and each item of slab conditions from a plurality of past orders acquired in Step S108. That is, the candidate order selection unit 16c searches for past orders that match or include the hot rolling conditions and slab conditions of a rolled product that can be manufactured at present. Based on the search result, the candidate order selection unit 16c specifies a past order that satisfies the dimensions of the rolled product that can be manufactured using the current succeeding material 9 among the plurality of past orders. The candidate order selection unit 16c selects the past order identified in this way as a past candidate order associated with the current succeeding material 9.

  After selecting a past candidate order in step S109, the processing unit 16 changes the product dimension of the order associated with the current succeeding material 9 to the product dimension of the selected past candidate order (step S110). ), This process is terminated. In step S110, the order changing unit 16d transmits the past candidate orders selected in step S109 to the process computer 102, and changes the dimensions of the rolled product determined by the past candidate orders to the process computer 102. Instruct. The process computer 102 changes the dimension of the rolled product determined by the initial order of the succeeding material 9 to a dimension based on this past candidate order based on the instruction of the order changing unit 16d. In this way, the order changing unit 16d determines the dimensions of the rolled product determined by the initial order of the succeeding material 9 located in the heating furnace 1 of the hot rolling line 10 after the trouble has occurred in the past in step S109. Change to the dimensions of the rolled product determined by the candidate order.

  As a result of step S110, the process computer 102 instructs the control device 103 to manufacture a rolled product having dimensions (width, thickness, etc.) determined by the above-described past candidate orders. The control device 103 controls each device of the hot rolling line 10 based on an instruction from the process computer 102. Based on this control, the hot rolling line 10 uses the trailing material 9 in the heating furnace 1 to manufacture a rolled product (coil or the like) having a dimension according to this past candidate order. As a result, the hot rolling line 10 uses the succeeding material 9 to manufacture a highly versatile rolled product having a general size, that is, a rolled product that is likely to be ordered in the near future.

  In addition, whenever the trouble occurs in the hot rolling line 10, the processing unit 16 appropriately executes each processing procedure of steps S101 to S110 illustrated in FIG. At this time, the processing unit 16 executes each processing procedure of steps S101 to S110 during a period from when trouble occurs in the hot rolling line 10 until the succeeding material 9 in the heating furnace 1 is extracted.

  On the other hand, “unrolled” in the order placement order status confirmed in step S102 is divided into “uncast” and “cast” as described above. In other words, the order received that is determined to be an unrolled order in step S103 described above is either an uncast order received or a cast order received. When the unrolled order in Step S103 is an uncast order, this order has not been arranged for the production process of the rolled product. Therefore, as shown in step S107 described above, the order changing unit 16d achieves the update process of the order database 14 by deleting from the order database 14 an uncast order that is the same as the candidate order. However, if the unrolled order in step S103 is a cast order, the order has already been arranged for the production process of the rolled product. Therefore, in step S107, the order changing unit 16d deletes the same cast order received as the candidate order from the order database 14, and appropriately determines the product specifications or the requested quantity of the same cast ordered order already arranged. change. As a result, the order changing unit 16d achieves the update process of the order database 14 and prevents a situation in which the manufacture of the same product as the rolled product already manufactured using the succeeding material 9 is repeated in vain.

  As described above, in the embodiment of the present invention, after a trouble occurs in a hot rolling line that manufactures a rolled product using a material to be rolled, a subsequent material that follows the material to be rolled. Create a manufacturable order for a rolled product that can be produced by using the succeeding material in the heating furnace after the occurrence of this trouble, until the hot rolling line is extracted from the heating furnace of the hot rolling line, From the orders received in the order database, select the order that satisfies the hot rolling conditions and slab conditions corresponding to this manufacturable order, and select the initial order for the following material in the furnace. The order has been changed.

  For this reason, before the succeeding material is extracted from the heating furnace, an order for a rolled product that can be manufactured taking into account the current state of the hot rolling line after the trouble has occurred and the current state of the succeeding material in the heating furnace is placed. By arranging for the current succeeding material, it is possible to prevent a situation in which the succeeding material that is not associated with the order received is subjected to width pressing and rolling. That is, even if a trouble occurs in the hot rolling line in the process in which the hot rolling line commercializes the preceding material, the succeeding material can be rolled according to the order received. As a result, it is possible to save time, labor, energy and materials spent on the treatment of the succeeding material due to the abandonment of commercializing the succeeding material, and to receive the succeeding material on the hot rolling line after the trouble occurs. It can be commercialized into rolled products according to orders. Thereby, it is possible to improve the production yield of the rolled product after the occurrence of the trouble while reducing the energy loss of the hot rolling line after the occurrence of the trouble and the useless loss of the material to be rolled.

  Further, in the embodiment of the present invention, the arrangement status of a sales order that is used to create a manufacturable order that is associated with the following material is confirmed, and the manufacturing status of the following material is confirmed using the order that is not yet rolled. Have created. For this reason, as a manufacturable order after the occurrence of a trouble, an unrolled sales order can be associated with the current succeeding material. As a result, even if it is a hot rolling line after a trouble has occurred, the succeeding material can be rolled in accordance with an unrolled order, and as a result, the product can be produced in accordance with the order for the succeeding material after the trouble has occurred. Can be promoted.

  Furthermore, in the embodiment of the present invention, an order for a rolled product that can be manufactured in the present situation, that is, the initial order of the succeeding material is changed to the candidate order described above, and then the order database is updated, A sales order that is the same as a candidate order is deleted. For this reason, it is possible to prevent a situation where an order order identical to a candidate order that has already been manufactured is disposed of in the manufacturing process of the rolled product, and as a result, the same product as the rolled product that has already been manufactured using the following material. Can prevent unnecessary repetition of manufacturing.

  Further, in the embodiment of the present invention, when the order status of the above-mentioned order is already rolled, the rolling order that is relatively high in order order and can be manufactured using the following material from the past order database. A past order that satisfies the dimensions is selected. Subsequently, the dimension of the rolled product determined by the initial order of the succeeding material is changed to the dimension of the rolled product determined by the selected past order. For this reason, it is possible to manufacture a highly versatile rolled product having a general size, that is, a rolled product with a high possibility of receiving an order in the near future, from the current succeeding material by the hot rolling line after the trouble occurs. . As a result, the loss of the succeeding material after the trouble occurs can be reduced, and the possibility of commercializing the succeeding material can be improved. As a result, the production yield of the rolled product by the hot rolling line after the trouble occurs is improved. Can contribute.

  In the above-described embodiment, when trouble occurs in the single hot rolling line 10, the initial order of the trailing material 9 in the heating furnace 1 is changed to the order of a rolled product that can be manufactured at present. However, the present invention is not limited to this. That is, the order change device and the order change method according to the present invention may perform an order change process for the subsequent material after the occurrence of the trouble for each of the plurality of hot rolling lines. In this case, for example, the order changing device 11 is connected so that the processing unit 16 and the control unit 17 (see FIG. 1) and each process computer of the plurality of hot rolling lines can communicate with each other. What is necessary is just to perform the order change process mentioned above for every information to show.

  In the above-described embodiment, the latest order is acquired from the order database 14 in step S101. However, the present invention is not limited to this. In step S101, a desired order among the orders received in the order database 14 is acquired. Order orders may be obtained. However, since there is a high possibility that the latest order in the order database 14 is an unrolled (or uncast) order, it is desirable to obtain the latest order from the order database 14 in step S101.

  Furthermore, in the above-described embodiment, the initial order of the succeeding material 9 in the heating furnace 1 is changed to the candidate order selected from the order database 14 as an order that satisfies the manufacturable order. It is not limited to this. That is, when the arrangement status of the candidate order selected in step S105 described above has already been rolled, the initial order of the succeeding material 9 is not changed to this candidate order, and the dimensions of the rolled product based on this initial order are changed. Also good. Specifically, the arrangement status confirmation unit 16a confirms whether or not the arrangement status of the candidate order selected in step S105 has been rolled. If rolling has been completed, the process does not proceed from step S105 to step S106. You may progress to step S108.

  Further, the present invention is not limited by the above-described embodiment, and the present invention includes a configuration in which the above-described constituent elements are appropriately combined. In addition, all other embodiments, examples, operation techniques, and the like made by those skilled in the art based on the above-described embodiments are included in the present invention.

DESCRIPTION OF SYMBOLS 1 Heating furnace 2 Width press apparatus 3 Conveyance apparatus 3a Conveyance roll 4 Rough rolling apparatus 4a Rough rolling mill 5 Finish rolling mill 5a Finish rolling mill 6 Cooling apparatus 7 Coiler 8 Preceding material 9 Subsequent material 10 Hot rolling line 11 Order change apparatus DESCRIPTION OF SYMBOLS 12 Input part 13 Display part 14 Order database 15 Past order database 16 Processing part 16a Arrangement status confirmation part 16b Manufacturable order creation part 16c Candidate order selection part 16d Order change part 17 Control part 100 Continuous casting apparatus 101 Business computer 102 Process computer 103 Control device

Claims (8)

An order database for accumulating orders including product specifications of the rolled products received;
When trouble occurs in the hot rolling line after extracting the material to be rolled from the heating furnace of the hot rolling line, the subsequent material located in the heating furnace is the material to be rolled following the rolled material. Based on the material information indicating the current state, the line information indicating the current state of the hot rolling line in which the trouble has occurred, and the order obtained from the order database, the current hot rolling line is the succeeding material. A manufacturable order creation unit that creates manufacturable orders of rolled products that can be manufactured using
From the order database, a candidate order selection unit that selects an order that satisfies hot rolling conditions and slab conditions determined by product specifications included in the manufacturable order as candidate orders to be associated with the succeeding material,
An order change unit for changing the current order associated with the succeeding material to the candidate order;
An order change device characterized by comprising: Obtain the latest order from the order database, check the arrangement status of the latest order, and determine whether the latest order is an unrolled order that has not yet been arranged in the rolling process An arrangement status confirmation unit is further provided.
The manufacturable order preparation unit is a rolled product that the current hot rolling line can manufacture using the succeeding material based on the material information of the succeeding material and the line information of the hot rolling line. The product specification is set, the product specification included in the latest order determined to be an unrolled order is replaced with the set product specification, and the manufacturable order is created. The order change device according to 1. A past order database that accumulates orders of rolled products produced in the past as past orders is further provided.
When it is determined that the latest order is not an unrolled order, the candidate order selection unit acquires a plurality of past orders having a relatively high order frequency from the past order database, and acquires the plurality Of past orders satisfying the dimensions of the rolled product that can be manufactured using the following material, as a past candidate order corresponding to the following material,
The said order change part changes the dimension of the rolled product decided by the present order matched with the said succeeding material into the dimension of the rolled product decided by the said past candidate order. Order change device as described.   The order change unit deletes the same order as the candidate order associated with the succeeding material from among the orders stored in the order database. Order change device described in one. When trouble occurs in the hot rolling line after extracting the material to be rolled from the heating furnace of the hot rolling line, the subsequent material located in the heating furnace is the material to be rolled following the rolled material. Based on material information indicating the current state, line information indicating the current state of the hot rolling line where the trouble has occurred, and an order acquired from an order database that accumulates orders including product specifications of the ordered products. A manufacturable order creation step for creating a manufacturable order of a rolled product that the current hot rolling line can produce using the following material;
From the order database, a candidate order selection step of selecting an order satisfying hot rolling conditions and slab conditions determined by product specifications included in the manufacturable order as candidate orders to be associated with the succeeding material,
An order change step for changing the current order associated with the succeeding material to the candidate order;
An order change method characterized by including: Obtain the latest order from the order database, check the arrangement status of the latest order, and determine whether the latest order is an unrolled order that has not yet been arranged in the rolling process And further comprising an arrangement status confirmation step,
The manufacturable order creation step includes a rolled product that the current hot rolling line can manufacture using the succeeding material based on the material information of the succeeding material and the line information of the hot rolling line. The product specification is set, the product specification included in the latest order determined to be an unrolled order is replaced with the set product specification, and the manufacturable order is created. 5. The order changing method according to 5. When it is determined that the latest order is not an unrolled order, a plurality of past orders having a relatively high order frequency are selected from a past order database in which orders of rolled products manufactured in the past are accumulated as past orders. A past order acquisition step to be acquired;
A past candidate order selection step of selecting a past order that satisfies the dimensions of a rolled product that can be manufactured using the following material among the plurality of past orders as a past candidate order that is associated with the following material;
A dimension changing step for changing a dimension of the rolled product determined by the current order associated with the succeeding material to a dimension of the rolled product determined by the past candidate order;
The order change method according to claim 6, further comprising:   The order database update step of further deleting an order identical to the candidate order associated with the succeeding material among the orders stored in the order database. Order change method as described in one.

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