JP2018128766A - Work process planning method, work process planning device and work process planning program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily make a work process plan which reduces the work process time and optimally deploys workers even when being made for limited personnel for working.SOLUTION: A work process planning method makes a working process plan in which changing work for changing members provided in processing facilities a1 to a5 for processing a raw material in manufacturing equipment which is provided with a plurality of stages of processing facility groups each of which the plurality of processing facilities a1 to a5 are arranged side by side in, and manufactures products from the raw material by causing the raw material to pass across the plurality of stages of processing facility groups, and confirmation work for confirming a work completion state by causing the raw material to pass the manufacturing equipment after the changing work are combined. Waiting times of work steps constituting the changing work and waiting states of plant facilities C1 and C2 for use in the changing work are displayed in a chart to evaluate the validity of worker deployment, and workers are deployed again so as to minimize the time of the entire work process.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a work process plan creation method, a work process plan creation apparatus, and a work process plan creation program, and in particular, in a production facility that manufactures steel products by passing steel materials through a plurality of processing facilities such as rolling stands. The present invention relates to a work process plan creation method, a work process plan creation apparatus, and a work process plan creation program suitable for creating a process plan for equipment reassignment work.

  Conventionally, in steelworks, for example, after rolling a steel strip in a former processing facility and rolling it, welding the joints to form a tubular steel material, and then forming the tubular steel material further formed in a subsequent processing facility. A manufacturing process is performed in which a product is processed into a perfect circle and finished to a dimension according to the ordered product. This tubular steel material is referred to as a so-called “electric sewing tube” or the like. Since the dimensions of the ERW pipes change according to the order, the ERW pipe manufacturing equipment can change the rolls installed in the existing stand according to the desired ERW pipe dimensions. Done. In addition, the reassignment work is performed not only at the time of dimensional adjustment but also at the time of repairing the manufacturing equipment.

  As a method of creating a process plan for such reassignment work, a method such as a project management model such as Program Evaluation and Review Technique (PERT) that can clearly grasp the critical path is known. Yes. In addition, a method has been proposed in which the number of days until work is started for each work item is calculated for a plurality of databases, a correlation is estimated based on the number of days, and a new plan is created (patent) Reference 1).

  However, in the case of PERT, the original method is established if there is an automatic reassignment function and it is possible to operate multiple facilities even with a small number of people, or if there is a sufficient number of workers (operators) that can be prepared by manual reassignment. Work plan can be created. However, PERT is not applicable in cases where a small number of people cannot operate a plurality of facilities or when there are few workers. In addition, in ERW pipe manufacturing equipment, there are cases where rearrangement work is performed in parallel at each of the front and rear processing facilities, and a limited condition that a limited number of workers are placed in each processing equipment. May occur. The method of Patent Document 1 is not necessarily effective because such a restriction condition is not taken into consideration when creating the work process plan.

Japanese Patent Laying-Open No. 2015-108879

  The present invention has been made paying attention to the above-mentioned problem, and even when a work process plan is created by a limited number of workers, the work process time is shortened to optimize the arrangement of workers. It is an object of the present invention to provide a work process plan creation method, a work process plan creation device, and a work process plan creation program that can easily create a work process plan.

  In order to solve the above-mentioned problem, in one aspect of the work process plan creation method of the present invention, (a) a plurality of processing equipment groups in which a plurality of processing equipment for processing a material are arranged and arranged are provided in series, and the material is In a manufacturing facility that manufactures a material product by passing it over a plurality of stages of processing facilities, the work of rearranging the members included in the processing equipment and the material passing through the manufacturing facility after the rearrangement work A method for creating a work process plan combining a confirmation work for confirming a completion state, wherein (b) a standby time of a work process constituting the reassignment work and a standby state of factory equipment used for the reassignment work Is displayed as a chart, the validity of the worker placement is evaluated, and the worker is rearranged so that the time of the entire work process is minimized.

  Moreover, the one aspect which concerns on the work process plan preparation apparatus of this invention is provided with the process equipment group which arranged the process equipment which arranged the multiple process equipment arranged side by side in multiple stages, and provided the said material in the said multi-stage process equipment group. In a manufacturing facility that manufactures a material product by passing it over, a replacement operation of a member provided in the processing facility, and a confirmation operation for checking the work completion state by passing the material through the manufacturing facility after the replacement operation And (b) a chart showing the standby time of the work process constituting the reassignment work and the standby state of the factory equipment used for the reassignment work on a display device. The gist of the invention is to provide an arithmetic device that evaluates the adequacy of worker placement and rearranges workers so that the time of the entire work process is minimized.

  Further, according to an aspect of the work process plan creation program of the present invention, (a) a plurality of processing equipment groups in which a plurality of processing equipments for processing materials are arranged and arranged are provided in series, and the raw materials are provided in the plurality of processing equipment groups. In a manufacturing facility that manufactures a material product by passing it over, a replacement operation of a member provided in the processing facility, and a confirmation operation for checking the work completion state by passing the material through the manufacturing facility after the replacement operation (B) a chart that displays the standby time of the work process that constitutes the reassignment work and the standby state of the factory equipment used for the reassignment work, The gist of the present invention is to allow a computer arithmetic unit to execute a process including the step of evaluating the adequacy of the arrangement and rearranging the workers so that the time of the entire work process is minimized. .

  Therefore, according to the work process plan creation method, work process plan creation apparatus, and work process plan creation program according to the present invention, even when a work process plan is created by a limited number of workers, the work process time is shortened. Therefore, it is possible to easily create a work process plan that optimizes the arrangement of workers.

It is a block diagram which illustrates typically the outline of the composition of the work process plan creation device concerning an embodiment of the invention. It is a figure which illustrates typically the manufacturing facility with which the work process plan preparation apparatus which concerns on embodiment of this invention is applied. It is a figure which illustrates typically the processing facility group of the front stage and the processing equipment group of the back | latter stage to which the work process plan preparation process which concerns on embodiment of this invention is applied. It is a figure explaining an example of the work condition data which shows the necessity of the worker according to the reassignment work used by the work process plan preparation process which concerns on embodiment of this invention, and a conveyance facility. It is a figure explaining an example of the work condition data which shows the scheduled work time according to the content of reassignment work, and work personnel in the integrated processing equipment used in work process plan creation processing concerning an embodiment of the invention. . It is a figure explaining an example of the work condition data which shows the scheduled work time according to the contents of reassignment work and a worker in dismantling type processing equipment used in work process plan creation processing concerning an embodiment of the invention. . It is a figure explaining an example of work condition data which shows the minimum required number of workers set for every processing equipment group used by work process plan creation processing concerning an embodiment of the invention, and passage time of a material. It is a block diagram explaining the outline of the composition of an arithmetic unit typically. It is a flowchart explaining the work process plan preparation process which the work process plan preparation apparatus which concerns on embodiment of this invention performs. It is a figure which illustrates typically the distribution number of persons and work state to the processing equipment group of the former stage and the processing equipment group of the latter stage corresponding to the 1st work process plan. It is a figure which shows typically an example of the process of the reassignment operation | work of each operation target equipment in the processing equipment group of a front | former stage with a chart. It is a figure which shows typically each of the process of the initial reassignment work calculated for every processing equipment group at the time of applying a 1st work process plan, and an initial board passing work. It is a figure which illustrates typically the allocation number of persons to the process equipment group of a front | former stage and a process equipment group of a back | latter stage and a work state corresponding to a 2nd work process plan. It is a figure which shows typically each of the process of the correction | amendment rearrangement operation | work calculated for every processing equipment group at the time of applying a 2nd operation | work process plan, and a correction board passing work. It is a figure which shows typically each of the process of the correction | amendment rearrangement operation | work calculated for every processing equipment group at the time of applying another work process plan, and a correction board passing work.

  Embodiments of the present invention will be described below. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, the drawings are schematic, and it should be noted that the relationship between the thickness and the planar dimensions, the ratio of the thickness of each device and each member, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings. Also, the directions of “left and right” and “up and down” in the following description are merely definitions for convenience of description, and do not limit the technical idea of the present invention. Thus, for example, if the paper is rotated 90 degrees, “left and right” and “up and down” are read interchangeably, and if the paper is rotated 180 degrees, “left” becomes “right” and “right” becomes “left”. Of course.

<Structure of work process plan creation device>
As shown in FIG. 1, the work process plan creating apparatus according to the embodiment of the present invention is a computer system including an arithmetic unit 10 that creates a work process plan that combines a rearrangement work plan and a planing work plan. is there. As shown in FIG. 2, the computing device 10 includes a front-side processing equipment group A and a rear-side processing equipment group B in which a plurality of processing equipments for processing the steel sheet 1 are arranged side by side from the upstream side to the downstream side at the steelworks. A work process plan for reassigning a plurality of processing facilities is created. In this work process plan, at least one worker is assigned to each of the front-stage processing equipment group A and the rear-stage processing equipment group B, and each rearrangement work is performed in parallel. It is created for the work of performing a plate-passing work to pass the material later.

  The computing device 10 includes a work condition database 21 in which the work conditions of the reassignment work are stored, and an arrangement number database 22 in which the distribution number data to the processing equipment group A in the previous stage and the processing equipment group B in the subsequent stage are stored. It is connected. In addition, a work process plan database 23 in which the created work process plan is stored and a boarding completion time database 24 in which boarding completion time data is stored are connected to the arithmetic device 10.

  The arithmetic device 10 is a central processing unit (CPU) or processor of a computer, and an input device 30 and a display device 40 are connected to the arithmetic device 10. The arithmetic unit 10 is configured to be able to access the respective data stored in the work condition database 21, the arrangement number database 22, the work process plan database 23, and the plate passing completion time database 24.

  Each apparatus such as the arithmetic unit 10 and the database included in the work process plan creating apparatus according to the embodiment of the present invention can be configured by a general computer including a CPU, a RAM, a ROM, an HDD, and the like. The work process plan creation device can be configured such that the arithmetic device 10 reads the created work process plan from the work process plan database 23 and displays it on the display device 40. Moreover, the standby time of the work process which comprises the recombination work and the standby state of the factory equipment used for recombination work created through the arithmetic processing can be displayed on the display device 40 in a chart.

  The manufacturing equipment illustrated in FIG. 2 includes, as processing equipment, a rolling stand (rolling mill) such as a breakdown mill or a cage roll for rolling the steel plate 1 as a “material”. When manufacturing the ERW pipe 2, as shown in FIG. 2, first, the steel plate 1 that has passed through treatment equipment such as an uncoiler, leveler, and edge mirror (not shown) is input to the entry side of the treatment equipment group A in the previous stage. Is done.

  In the processing facility group A in the preceding stage, for example, a preformer located on the left side in a box surrounded by a broken line, a molding machine located in the center, a welding machine located on the right side, and the like are disposed as processing facilities. . Each processing equipment includes a rolling stand, and the rolling stand includes a plurality of rolling rolls such as a top roll, a side roll, and a bottom roll, and rolls the material simultaneously from a plurality of directions by combining the respective rolling rolls. . The steel plate 1 that has passed through the outlet side of the front-stage processing equipment group A is formed into a tubular shape, and further passes through processing equipment such as a welded flaw detector, a post-annealer, a water-cooling device (not shown), and then the subsequent processing. It enters the entrance side of the equipment group B.

  In the subsequent processing equipment group B, for example, a plurality of sizing machines are arranged as processing equipment, which are respectively located on the left side and the center inside the broken line, and the material formed into a tubular shape is successively formed to have a desired diameter. Molding. As in the case of the processing equipment group A in the previous stage, the constant diameter machine also includes a rolling stand provided with a plurality of rolling rolls. The formed material is cut to a desired length by a traveling cutting machine that is positioned on the right side of the dotted line.

  In this manner, the ERW pipe production line is provided with the first-stage processing equipment group A and the second-stage processing equipment group B, and the steel plate 1 is interposed between the first-stage processing equipment group A and the second-stage processing equipment group B. Thus, the electric sewing tube 2 as a “material product” is manufactured by continuously passing it.

  The upstream processing facility group A and the downstream processing facility group B of the production facility for the electric resistance welded tube 2 illustrated in FIG. 3 include five rolling stands as a plurality of processing facilities a1 to a5 and b1 to b5, respectively. In the work process plan creation process according to the embodiment of the present invention, the reassignment work in each of the processing facilities a1 to a5 and b1 to b5 is performed for each of the processing facility group A in the preceding stage and the processing facility group B in the subsequent stage. It is desirable that workers are placed at the same time and started simultaneously.

  In the rearrangement work, a plurality of rolling rolls included in the rolling stand are removed from the rolling stand, and another rolling roll is incorporated. Specifically, as shown in FIG. 4, as the work process of each processing equipment a1 to a5 and b1 to b5 constituting the reassignment work, (1) Preparation for removing existing rolling rolls, ( There are 2) removal, (3) incorporation of a new rolling roll, and (4) adjustment after incorporation, and these are executed in the order of (1) to (4).

  In the rolling stand, a plurality of rolling rolls are integrated to form a block unit, and the removal work of existing rolling rolls and the recombination work of incorporation of new rolling rolls are each 1 There is an "integrated type" that can be done in a single time. On the other hand, a plurality of rolling rolls are not integrated, and each of the plurality of rolling rolls is removed one by one from the top side of the stand toward the bottom side, and then new rolling rolls are taken one by one from the bottom side of the stand. There are also “dismantling” rolling stands that need to be built towards the top.

  FIG. 5 shows an example of the reassignment work time of the “integrated type” rolling stand, and FIG. When the number of workers in FIG. 6 is one, the column “x” in the removal and incorporation indicates that one person cannot work. That is, there is a processing facility in which two or more workers need work. In each processing facility, the maximum number of workers who can work at the same time is set as the “number of facility workers”. For example, if the “capable number of facilities” of a certain processing facility is three, for example, four or more workers cannot be arranged in this processing facility.

  As shown in FIGS. 5 and 6, the integrated rolling stand has a shorter working time than the dismantling rolling stand. As described above, regarding the plurality of processing facilities a1 to a5 and b1 to b5, for example, even if a rolling stand of the type having the same top roll and bottom roll is used, the work time depends on whether it is an integral type or a dismantling type. Different. The work time for each of the processing facilities a1 to a5 and b1 to b5 shown in FIGS. 5 and 6 is one of the work conditions in the work process plan creation process according to the embodiment of the present invention.

  Further, in the manufacturing facility shown in FIG. 3, as exemplified by three cranes, the first transport facility C1 to the third transport facility C3 necessary for the reassignment work of the plurality of processing facilities a1 to a5 and b1 to b5. Is established as “factory equipment”. In the reassignment work of the plurality of processing facilities a1 to a5 and b1 to b5, as shown in FIG. 4, the first transfer facility C1 to the third transfer facility C3 are “preparation for removal” and “adjustment after incorporation”. Is not necessary. On the other hand, the first transfer facility C1 to the third transfer facility C3 are necessary for the “removal” and “assembly” reassignment work.

  The three cranes constituting the first transport facility C1 to the third transport facility C3 are all arranged along the transport direction of the steel plate 1 arranged above the front-stage processing equipment group A and the rear-stage processing equipment group B. It is slidably suspended on the same extending rail, and is provided apart from each other along the electric sewing tube manufacturing line. An operator is required to operate the first transfer facility C1 to the third transfer facility C3.

  Although illustration is omitted, a material storage area for stocking materials and the like conveyed by the first conveyance facility C1 to the third conveyance facility C3 is provided in the vicinity of the processing facility group A at the front stage and the processing facility group B at the rear stage. ing. In this material storage place, a rolling roll removed by reassignment work, a rolling roll to be newly incorporated, and the like are arranged, and the first transport facility C1 to the third transport facility C3 are a plurality of processing facilities a1 to a5. , B <b> 1 to b <b> 5 and the material storage are provided so as to be able to come and go. The work time as shown in FIGS. 5 and 6 is set in consideration of the travel time between the first storage facility C1 to the third transport facility C3 between the material storage and the target processing facility. ing.

  Since the reassignment work is performed in parallel in each of the front-stage processing equipment group A and the rear-stage processing equipment group B, the first transport equipment C1 located on the left side in FIG. Used exclusively for reclassification work. Further, the third transfer equipment C3 located on the right side in FIG. 3 is exclusively used for the rearrangement work of the subsequent processing equipment group B. The second transfer facility C2 located at the center in FIG. 3 constitutes a shared transfer facility that can be used for any of the rearrangement operations of the processing facility group A at the preceding stage and the processing facility group B at the subsequent stage.

  After the reclassification work, the steel sheet 1 is continuously placed between the processing equipment group A at the front stage and the processing equipment group B at the rear stage by using rolling rolls newly incorporated into the plurality of processing equipments a1 to a5 and b1 to b5. A “plate passing operation” is performed as a “confirmation operation” in which the operation completion state is confirmed by seeing the finished state of the ERW pipe 2.

  As shown in FIG. 7, the minimum required number of workers performing the work and the passing times of the processing equipment group A at the front stage and the processing equipment group B at the rear stage are set for the plate passing work. The minimum required number of people and the passage time shown in FIG. 7 are one of the work conditions in the work process plan creation process according to the embodiment of the present invention.

  In other words, conceptually, the manufacturing facility shown in FIG. 3 is provided with two groups consisting of a front-side processing equipment group A and a rear-side processing equipment group B as “major classification” when creating a work process plan. . The first-stage processing equipment group A and the second-stage processing equipment group B that form this “major classification” are the first processing equipment a1 to the fifth processing equipment a5 and the first processing equipment b1 to the first processing equipment that are composed of five rolling mill stands. 5 treatment facilities b5 are provided as “medium classification”, respectively. The processing facilities a1 to a5 and b1 to b5 forming the “medium class” have an attribute of “integrated type” or “dismantled type” as “small class”. Further, the rearrangement work is performed in combination with a plate passing work subsequent to the rearrangement work.

  The work process plan creation apparatus according to the embodiment of the present invention has the work conditions for these “major classification”, “medium classification”, “small classification”, and boarding work as shown in FIGS. Take into account the overall work plan. All work conditions including the data shown in FIGS. 4 to 7 are stored in the work condition database 21.

(Arithmetic unit)
Next, the work process plan creation apparatus according to the embodiment of the present invention will be specifically described with reference to FIGS. The arithmetic device 10 includes an initial arrangement number setting unit 11, a reassignment plan creation unit 12, a boarding plan creation unit 13, a boarding completion time calculation unit 14, an arrangement number resetting unit 15, and an optimization plan extraction. Unit 16.

  The initial arrangement number setting unit 11 sets the initial arrangement number of persons as each worker who performs the reassignment work in the front-stage processing equipment group A and the rear-stage processing equipment group B.

  The reassignment plan creation unit 12 is configured to provide, for example, the number of workers arranged per unit time for the reassignment work of the processing equipment a1 to a5 and b1 to b5 of the processing equipment group A at the front stage and the processing equipment group B at the rear stage. A “reassignment plan” is created as a plan that defines the order of movement of workers within the same processing equipment group, the transfer equipment C1 to C3 used for reassignment work, and the like.

  The board plan creation unit 13 considers the rearrangement plan created by the rearrangement plan creation unit 12 and actually arranges for each of the processing equipment group A at the front stage and the processing equipment group B at the rear stage regarding the board passing work. Create a “Plate-through plan” as a plan that defines the personnel and the start time of the plate-through operation. The board plan corresponds to the “confirmation work plan” of the present invention.

  The plate passing completion time calculation unit 14 obtains time data indicating the scheduled time when the plate passing operation is completed when the steel plate 1 passed through the plate passing operation passes through the exit side of the subsequent processing equipment group B. Calculate as

  The number-of-placement resetting unit 15 redistributes the work staff placed as the initial value and resets the number of places. As a specific example of the redistribution method, a certain number of persons are assigned to the other processing equipment group (for example, the preceding processing equipment group A) from the number of persons arranged on one processing equipment group (for example, the following processing equipment group B). There is a slope distribution method that redistributes

  Therefore, the reassignment plan creation unit 12 creates an initial reassignment plan using the number of people set as the initial value and a modified reassignment plan using the reset number of people as the reassignment plan. In addition, the board plan creation unit 13 creates an initial board plan using the initial reassignment plan and a modified board plan using the modified rearrangement plan as the board plan. The initial board plan corresponds to the “initial check work plan” of the present invention, and the corrected board plan corresponds to the “correction check work plan” of the present invention. Further, the plate passing completion time calculation unit 14 creates, as time data, initial time data for completing the plate passing operation in the initial plate passing plan and corrected time data for completing the plate passing operation in the corrected plate passing plan. To do.

  That is, as the entire work process plan, a first work process plan that combines the initial reassignment plan and the initial plan plan is created, and a second work process plan that combines the revised reassign plan and the correct plan plan is created. Is done. As the number of persons resetting unit 15 repeatedly resets the number of persons allocated, and the reassignment plan creation unit 12 and the boarding plan creation unit 13 repeatedly create the respective plans, the overall work process plans are also third, fourth. , ... and the number increases.

  The optimization plan extraction unit 16 includes a work plan including the smallest time data among the created one or more work process plans, and a work process including a reassignment plan corresponding to the work plan. The plan is extracted as an optimized plan with the highest work efficiency.

<Work process plan creation process>
Next, a work process plan creation process using the work process plan creation apparatus according to the embodiment of the present invention will be described. First, in step S <b> 1 of FIG. 9, using the input device 30, work personnel and workable factory equipment are input to the arithmetic device 10 as preset constraint conditions and stored in the work condition database 21.

  Next, in step S <b> 2, the initial arrangement number setting unit 11 sets the number of workers to be arranged in the preceding processing equipment group A and the following processing equipment group B from the total number of input working personnel. For example, the initial arrangement number setting unit 11 can be equally divided into two when the total number of workers is an even number. On the other hand, when the total number is an odd number, the initial arrangement number setting unit 11 sets the difference to, for example, “1 person” so that the arrangement numbers of the processing equipment group A in the front stage and the processing equipment group B in the rear stage approach as evenly as possible. The difference in the number of persons can be suppressed so as to be “minute”, and the number of persons in one of the preceding stage and the succeeding stage can be increased according to equality.

  As an initial arrangement method, a method other than the equal arrangement can be adopted as long as the worker redistribution process in step S7, which will be described later, can be executed. For example, the minimum number of persons who can perform work may be first arranged in the front-stage processing equipment group A, and the remaining number may be arranged in the rear-stage processing equipment group B. At this time, the slope distribution processing which is the redistribution processing in step S7 is executed from the subsequent stage to the previous stage. On the contrary, first, the minimum number of persons who can perform the work may be arranged in the subsequent processing equipment group B, and the remaining persons may be arranged in the processing equipment group A in the previous stage. At this time, the worker inclination distribution processing is executed from the front stage to the rear stage. The method of the initial arrangement which arranges the minimum number of people in the uniform arrangement or one processing equipment group is suitable for the case where simple inclination distribution processing is sequentially performed as the redistribution processing in step S7.

  In addition, as an initial arrangement method, for example, a method of setting an arrangement pattern at random by giving various values using random numbers in a limited number of people can be employed. At this time, the redistribution process in step S7 is not a simple gradient distribution, but a method other than the gradient distribution, such as a random distribution change, is executed. Depending on the various methods for performing the initial arrangement, the method of the redistribution process in step S7 can be variously changed.

  Next, in step S3, the reassignment plan creation unit 12 reads out the respective work conditions stored in the work condition database 21, and uses the arranged work personnel to perform the preceding processing equipment group A and the following processing equipment. Create a reassignment plan for each of Group B. When there are a plurality of operation target facilities and a plurality of workers, there are a plurality of worker arrangement patterns, and a plurality of reassignment plans can be created. The reassignment plan creation unit 12 can be set so as to extract a reassignment plan that has the earliest time at which the reassignment work is completed earliest from among a plurality of possible reassignment plans. Alternatively, a plurality of reassignment plans can be displayed to the operator of the work process plan creating apparatus, and the operator can select an arbitrary reassignment plan. Finally, the reassignment plan creating unit 12 determines a reassignment plan having one arrangement pattern corresponding to the arranged work personnel.

  Next, in step S4, the board plan creation unit 13 creates the rearrangement plan for the former processing equipment group A, the rearrangement plan for the subsequent processing equipment group B created, and the board passing work shown in FIG. In consideration of the above working conditions, a board plan is created between the processing facility group A at the preceding stage and the processing facility group B at the subsequent stage. The arithmetic unit 10 stores the entire work process plan including the reassignment plan and the prepared board plan to be combined with the reassignment plan in the work process plan database 23.

  Next, in step S5, the boarding completion time calculation unit 14 calculates the boarding completion time in the created boarding plan, and stores it in the boarding completion time database 24 as nth time data. n is a positive integer of 1 or more. In step S5, the first completion time calculated is the initial time data, the second calculated completion time is the second corrected time data, and the third calculated last time. As the completion time is corrected third time data, etc., each time the process of step S5 is repeated, the number of the time data to be assigned is sequentially increased, and the stored time data is increased.

  Further, the arithmetic unit 10 accesses the work process plan database 23 and assigns the same number as the time data to the entire work process plan linked to the nth time data given by the boarding completion time calculation unit 14, Store as the nth work process plan.

  Next, the number-of-placement resetting unit 15 re-distributes the work personnel placed in the front-stage processing equipment group A and the rear-stage processing equipment group B and resets the number of places. In the case where the initial placement of workers is performed by the uniform placement or the placement method according to the equivalent, the redistribution can be executed by a simple slope distribution method from the subsequent stage to the previous stage. Specifically, the number-of-placement resetting unit 15 determines whether or not there are two or more workers currently disposed in the subsequent processing equipment group B in step S6. In the case where the number of persons arranged in the subsequent processing equipment group B is two or more, the arranged person number resetting unit 15 determines that it is possible to distribute the workers to the processing equipment group A in the previous stage, and the process proceeds to step S7. Transition.

  Next, in step S7, the arrangement number resetting unit 15 assigns a certain number of workers from the downstream processing equipment group B to the upstream processing equipment group A in an inclined manner. The number of people to be given in one tilt distribution can be set as appropriate with a value of one or more.

  Next, in step S8, the arithmetic unit 10 increments the value of “n” stored therein by “1”. And it transfers to step S3, arrange | positions the worker increased by inclination distribution in any operation object equipment a1-a5, C1, C2 which can be additionally operated in the processing equipment group A of the front | former stage, (n + 1) Create a second reclassification plan. In other words, within the scope of restrictions for prescribed workers, the arrangement of workers is changed for each of the front and rear processing equipment groups, and the operating state of the factory equipment is increased within the prescribed restrictions, so that the front and rear processing equipment groups. Attempts to re-create the rearrangement plan so that the waiting time in the rearrangement work is reduced.

  Note that the redistribution method can be executed by various methods including a random distribution change as described in the description of step S2, in addition to simple inclination distribution. For example, in a limited number of people, using random numbers to give various values, change the placement pattern, evaluate the time of each placement pattern as a whole, and assume every possible combination in simulation calculations, Various methods can be employed, such as a method of changing the brute force as determined by time evaluation.

  When the redistribution is executed by a method other than the inclination distribution, the inclination distribution process in step S7, the determination process in step S6, and the increment process in step S8 are executed with appropriate changes or omissions (skipping). And after transfering to step S3, re-creation of the rearrangement plan using the rearranged worker is tried. Hereinafter, the description will be continued by returning to the case where the inclination distribution is used as the redistribution method shown in FIG.

  After re-creating the rearrangement plan in step S3, the processes of step S4 and step S5 are sequentially executed to calculate the (n + 1) th time data for which the plate passing is completed, and the calculated time data is completed for the plate passing. Store in the time database 24. The (n + 1) th work process plan is stored in the work process plan database 23. At this time, the arithmetic unit 10 can display a chart showing the standby time of the work process and the standby state of the factory equipment on the display device 40 to the operator of the work process plan creating apparatus as illustrated in the middle of FIG.

  Next, the process proceeds to step 6 to determine whether or not there are two or more workers arranged in the subsequent processing facility group B, that is, one worker is allocated to the subsequent processing facility group B. Until the stage becomes, the distribution of the workers to the upstream processing equipment group A is carried out. And each process of step S3-step S5 is repeated so that the time of the whole work process may become the minimum.

  On the other hand, in step 6, when the number of workers arranged in the processing facility group B in the subsequent stage becomes one, the work process plan creation device moves to step S9 and evaluates the validity of the worker arrangement. Specifically, the earliest time data is calculated from one or more time data stored in the plate passing completion time database 24. Then, the optimization plan extraction unit 16 sets the work process plan corresponding to the calculated time data of the earliest value as an optimized plan among the created one or more work process plans in the work process plan database 23. If the workers are rearranged according to the extracted work process plan, the work process plan creation process according to the embodiment of the present invention is completed. The extracted work process plan is displayed on the display device 40 to the operator of the work process plan creation apparatus. Thereafter, in accordance with the optimized work process plan, the rearrangement operation and the plate passing operation in the manufacturing facility are actually performed.

  Next, a specific example of the processing of the above-described steps S1 to S9 will be exemplarily described for a case where the manufacturing facility shown in FIG. The manufacturing equipment shown in FIG. 3 includes five first processing equipment a1 to fifth processing equipment a5 included in the processing equipment group A in the former stage and processing in the latter stage, as operation target equipment that the operator needs to operate. Thirteen pieces of equipment including five first processing equipment b1 to fifth processing equipment b5 and three first transport equipment C1 to third transport equipment C3 included in equipment group B are provided.

  First, in step S1, “7 people” is entered as the total number of workers P1 to P7 in FIG. In the case of seven workers who have been input, it is impossible to operate one by one in each of the 13 operation target facilities a1 to a5, b1 to b5, and C1 to C3 in the manufacturing facility. It is in a state, and the placement of workers will be examined.

  Next, in step S2, for example, as shown in FIG. 10, "4 persons" are arranged in the front-stage processing equipment group A and "3 persons" are arranged in the rear-stage processing equipment group B, and are initialized. At this time, in the processing facility group A in the preceding stage, the “number of facility workable persons” of the first processing facility a1 and the second processing facility a2 is set to, for example, three. On the other hand, in FIG. 10, four workers arranged in the processing facility group A in the previous stage are one in the first transfer facility C1 (worker P1) and two in the first processing facility a1 (worker P2). , P3), one person (worker P4) is arranged in the second processing facility a2.

  In FIG. 10, workers P1 and P5 to be operated are schematically illustrated inside the respective square boxes showing the first transfer facility C1 and the third transfer facility C3. However, in actual operation of the first transfer equipment C1 to the third transfer equipment C3, an operator may operate an operation panel provided on the floor, or remotely in an operation room or the like separated from the manufacturing equipment. May be operated manually.

  Next, in step S3, an initial reassignment plan including respective reassignment plans for the processing equipment group A at the front stage and the processing equipment group B at the rear stage is created. In the upper part of FIG. 11, a chart in which the work states of the seven operation target equipments a1 to a5, C1, and C2 included in the processing equipment group A in the previous stage are given different types of oblique lines depending on the content of the reassignment work. Is displayed.

  In the case of the initial reassignment plan shown in FIG. 11, the reassignment work start time is 10:00, and each “preparation” in the first processing equipment a1 and the second processing equipment a2 in which the workers P2 to P4 are arranged. Are started in parallel at the same time. Thereafter, the first transfer facility C1 moves to the first processing facility a1 that is ready at 10: XX, and two workers P2 and P3 continuously perform “removal” in the first processing facility a1. Done. Furthermore, after that, in the first processing facility a1 where the removal is completed, the first transfer facility C1 continues to operate and “incorporation” is continuously performed.

  On the other hand, in the second processing facility a2, the “preparation” is completed at 10 o'clock XX simultaneously with the first processing facility a1, but during the “removal” and “incorporation” in the first processing facility a1, Since the transfer facility C1 does not arrive, the second processing facility a2 and the worker P4 are in a standby state until 10 o'clock YY. And after "incorporation" in the 1st processing equipment a1 is completed, one worker P2 moves from the 1st conveyance equipment C1 to the 2nd processing equipment a2. In addition, the first transfer equipment C1 moves from the first processing equipment a1 to the second processing equipment a2, and from 10 o'clock YY, "removal" and "incorporation" in the second processing equipment a2 have moved. This is performed by the two workers P2 and P4 including the worker P4 who has been waiting, using the first transfer facility C1.

  While the “removal” is being performed at the second processing facility a2, “adjustment” is performed at the first processing facility a1 by the remaining one worker P3 from 10: YY in parallel. Then, after the “adjustment” of the first processing facility a1 is completed, the worker P3 working at the first processing facility a1 moves to the third processing facility a3, and “preparation” at the third processing facility a3 from 10 o'clock ZZ. I do.

  In this way, in FIG. 11, one worker P1 of the first transfer facility C1 is dedicated to crane operation, and the remaining three workers P2 to P4 are a set of the first processing facility a1 to the fifth processing facility a5. A case where the replacement work is performed while changing the arrangement from the upstream side toward the downstream side is illustrated. However, the arrangement pattern when the completion time is actually determined as the earliest completion plan is not limited to this, and four workers P1 to P4 are appropriately arranged between the first processing facility a1 to the fifth processing facility a5. It is movable.

  For example, after the preparation of the second processing facility a2 in FIG. 11 is completed, the worker P4 arranged in the second processing facility a2 is moved to another processing facility such as the third processing facility a3. There may be an arrangement pattern in which another operation is performed in another processing facility during “removal” and “incorporation” in the first processing facility a1. In FIG. 11, the charts representing “preparation”, “removal”, “integration”, and “adjustment” of the reassignment work of the first processing facility a1 to the fifth processing facility a5 are all the same for convenience of explanation. Although shown by the length, actually, as shown in FIG. 5 and FIG. 6, the working time is different for each of the processing facilities a1 to a5 or for each working person arranged at the same time.

  On the other hand, in the middle part of FIG. 11, the standby time zones of the seven operation target facilities a1 to a5, C1, and C2 are shown by white charts, assuming that the work state shown in the upper part is turned upside down. The column of the second transfer facility C2 shows a standby state that is not used throughout the reassignment work because no operable operator is arranged. A standby state occurs in each of the first processing facility a1 to the fifth processing facility a5. From the chart indicating the standby state (standby Gantt chart), in the case of the initial reassignment plan shown in FIG. 11, the standby time of the second transfer facility C2 among the seven operation target facilities a1 to a5, C1, and C2. You can see the longest.

  Further, in the lower part of FIG. 11, a state in which the worker is substantially engaged in work, that is, the number of workers in operation, is shown as a pile graph at regular time intervals. From this mountain graph, the number of people actually in operation is always between 10:00 and 11:30, even in the state where “4” workers are arranged in the processing facility group A in the previous stage. It can be seen that there may be three people instead of four. Note that the rearrangement plan for the processing equipment group B at the subsequent stage is equivalent to the case of the processing equipment group A at the previous stage, and therefore, a duplicate description is omitted.

  Next, in step S4, an initial board plan corresponding to the initial reassignment plan is created, and in step S5, initial time data that is the first board passing completion time is calculated. In FIG. 12, the plate passing work is started in the processing facility group A in the former stage from 11:30 when the rearrangement work in the previous stage is completed, and then the steel plate 1 enters the processing facility group B in the subsequent stage at 12:00. The initial planing plan created so that the planing operation is finally completed at 12:30 is illustrated.

  The value of “12:30” when the plate passing operation is completed is stored in the plate passing completion time database 24 as initial time data. Further, the entire work process plan shown in FIG. 12 is stored in the work process plan database 23 as a first work process plan. In addition, the board plan of the processing equipment group B at the subsequent stage is equivalent to the case of the processing equipment group A at the preceding stage.

  Next, in step S6, since the number of persons arranged in the subsequent processing equipment group B at the present time is “3”, it is determined that the inclination distribution to the preceding processing equipment group A is possible, and the process proceeds to step S7. In step S7, the worker is distributed “one person” from the rear stage to the front stage. Next, in step S8, the value of n is incremented by “1”.

  And it transfers to step S3 and a correction | amendment rearrangement plan is newly created using the worker increased from 4 persons to 5 persons with respect to the process equipment group A of the front | former stage. In the case of the initial reassignment plan, the standby time of the second transfer facility C2 was the longest as described using the standby Gantt chart shown in the middle part of FIG. Therefore, in the modified reassignment plan, one worker who has been added is placed in the second transport facility C2.

  Specifically, for example, in the modified reassignment plan, the first transfer facility C1 and the second transfer facility C2 are simultaneously operated, and the first transfer facility C1 is a replacement of the processing facility disposed near the first transfer facility C1. It is possible to consider that the second transfer equipment C2 is preferentially assigned to the work, and the second transfer equipment C2 is preferentially assigned to the reassignment work of the processing equipment disposed near the second transport equipment C2. That is, the modified reassignment plan is created in consideration of the respective standby times and positional relationships of the first processing facility a1 to the fifth processing facility a5, the first transport facility C1, and the second transport facility C2. Further, in the initial reassignment plan, as described with reference to the mountain graph shown in the lower part of FIG. 11, there was a time zone in which the number of workers actually operating was less than the number of workers. Therefore, the modified reassignment plan is created in consideration of reducing the time zone in which the number of workers actually operating is less than the number of workers.

  In FIG. 13, the worker P7 added to the processing facility group A in the previous stage is arranged in the second transport facility C2, and is more than the first processing facility a1 near the first transport facility C1 and the first transport facility C1. The state where each reassignment work of the 4th processing equipment a4 near 2nd conveyance equipment C2 is performed in parallel is illustrated. And the process of step S4 and step S5 is performed sequentially, the correction board plan according to the correction rearrangement plan is created similarly to the case of the initial board plan, and the second board pass completion time is corrected. Later time data is calculated and a second work process plan is created.

  In the second work process plan illustrated in FIG. 14, the plate passing work is started in the processing facility group A in the previous stage from 11:15 when the previous rearrangement work is completed, and 1 required for the previous plate passing work is performed. Four workers excluding human workers are placed in the rearrangement work after 11:15. In the processing facility group B at the latter stage, the number of workers increases from two to six, so that the reassignment work after 11:15 can be performed quickly.

  In the second work process plan, at 11:15, which is the starting point of the plate passing work, the rearrangement work has not yet been completed, and while the steel plate 1 passes through the processing equipment group A of the previous stage. Is done in parallel with the passage. After that, at 11:30, the rear-stage rearrangement work was completed, and at 15:45, 15 minutes later, the steel sheet 1 passed through the exit side of the front-stage processing equipment group A and entered the rear-stage processing equipment group B. Enter the side. And the steel plate 1 finally passes the exit side of the processing equipment group B of the latter stage at 12:15, and the plate passing operation is completed.

  The value of “12:15” for completing the plate passing work in the second work process plan is stored in the plate passing completion time database 24 as time data after correction. The entire work process plan shown in FIG. 14 is stored in the work process plan database 23 as a second work process plan.

  Next, it transfers to step S6 and confirms the work personnel arrange | positioned in the process equipment group B of a back | latter stage. At this time, since there are “two” workers arranged in the processing facility group B in the subsequent stage, it is determined that the inclination distribution to the processing facility group A in the previous stage is possible, and the process proceeds to step S7 again. Then, the workers are distributed from the rear stage to the front stage by “one person”. Thereafter, as in the case of creating the second work process plan, the process proceeds to step S8, step S3,... Sequentially, and a reassignment plan is created when “6 people” are arranged in the processing facility group A in the previous stage. The value for completing the plate passing operation according to the created reassignment plan is stored in the plate passing completion time database 24. Further, a third work process plan including the created rearrangement plan and the created board plan is created and stored in the work process plan database 23.

  In the third work process plan, although the illustration is omitted, although the rearrangement work of the processing facility group A at the previous stage is completed early, it takes time for the rearrangement work of the processing equipment group B at the subsequent stage, and the plate passing work is 12 times. Complete at 40 minutes. Also in the case of the third work process plan, the waiting times of the first processing equipment a1 to the fifth processing equipment a5, the first transport equipment C1 and the second transport equipment C2 as in the first and second work process plans. It is created in consideration of the positional relationship and the number of workers actually operating.

Next, when the process shifts to step 6 and the number of workers arranged in the subsequent processing equipment group B is confirmed, one person is present at this point. Therefore, it transfers to step S9, without performing the inclination distribution of the worker to the processing equipment group A of the front | former stage. The time data for completion of each plate passing work of the three work process plans created by the processing so far and stored in the plate passing completion time database 24 is as follows (α) to (γ). is there.
(Α) First work process plan: 12:30 (β) Second work process plan: 12:15 (γ) Third work process plan: 12:40

  In step S9, the corrected time data having a value of 12:15 is calculated as the earliest time data from the three time data (α) to (γ), and the corrected time data is provided. The second work process plan is extracted from the work process plan database 23 as an optimized plan with the highest work efficiency. As shown in FIGS. 12 and 14, the second work process plan is completed 15 minutes earlier than the first work process plan and 25 minutes earlier than the third work process plan. The actual rearrangement work is efficiently performed by rearranging the workers according to the work process plan optimized in this way.

  As shown in FIG. 15, depending on the value of the end time of the rear-stage rearrangement work, the end time of the rear-stage rearrangement work (11:00) and the start time of the front-stage plate passing work (11:15). It may happen that there is a gap between In this way, even if there is a blank time (loss time) between the end time of the preceding rearrangement work and the start time of the previous board passing work, the final time is based on the completion time of the subsequent board passing work. Thus, an optimal work process plan may be selected.

  According to the work process plan creating apparatus according to the embodiment of the present invention, as shown in FIG. 12 and FIG. 14, the start time of the plate passing work is advanced, and the steel plate 1 is the preceding processing equipment group in the plate passing work. Using the standard that the rearrangement work is completed by the time when it passes through the exit side of A and enters the entrance side of the processing facility group B in the subsequent stage, the workers are sequentially distributed to the upstream side. Create work process plans repeatedly. Therefore, even when a work process plan is created using a smaller number of workers than the number of operation target facilities a1 to a5, b1 to b5, and C1 to C3, the creation effort is suppressed easily and quickly. Therefore, it is possible to create a work process plan that realizes optimal worker assignment.

  Moreover, according to the work process plan preparation apparatus which concerns on embodiment of this invention, it is not only shortening the rearrangement work time of the process equipment group A of the front | former stage, but after the start of the board | plate feed work of the front | former stage, and the steel plate 1 So that the rearrangement of the rear-stage processing equipment group B is completed while the rear-end processing equipment group A is passing through, the work personnel are distributed to the front stage, and the rear-stage rearrangement work and the rear-stage rearrangement are completed. Create a work plan for the work. Therefore, even if it is a case where the plate passing operation | work which makes a continuous plate pass from a front | former stage to a back | latter stage is accompanied after a rearrangement operation | work, a plate passing operation | work can be established without delay.

  Moreover, according to the work process plan preparation apparatus which concerns on embodiment of this invention, the waiting time is digitized by displaying the waiting state of each operation object equipment a1-a5, b1-b5, C1-C3 as a chart. It becomes possible to confirm clearly. In particular, when a work process plan is created by assisting the work process plan creation apparatus, the creator can easily grasp the standby state of the entire manufacturing facility at a glance by displaying the chart. And the efficiency of recombination work can be improved by evaluating the adequacy of the worker placement and re-setting the worker placement so that the waiting time is reduced and the entire work process time is minimized. .

  Further, when the workers are rearranged, if there is a transport facility in the standby state, the increased number of workers is preferentially disposed with respect to the transport facility in the standby state. This makes it possible to effectively use the transfer facility in the reassignment work of the processing equipment, which is impossible only by human power, and to increase the efficiency of the entire rework work. In addition, it is possible to clearly grasp the time zone where the number of workers actually operating is less than the number of people assigned using the mountain graph, so the workers are rearranged to reduce this time zone, A work process plan with higher efficiency can be created.

(Other embodiments)
Although the present invention has been described by the embodiments disclosed above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, it should be understood that various alternative embodiments, examples, and operational techniques will become apparent to those skilled in the art. For example, in the embodiment of the present invention, the work process plan creation device, which is a computer system, executes the work process plan creation processing. Instead of the work process plan creation device, processing equivalent to the work process plan creation processing is performed. The work process plan creation method can be configured by the operator performing it manually.

  In addition, if the movement state of the transfer equipment is displayed in the standby Gantt chart as shown in FIG. In addition, the inside of the standby Gantt chart is further divided into blocks for each unit time, and in each block, a piled chart that displays the work personnel working in the corresponding operation target facilities a1 to a5, b1 to b5, and C1 to C3 is combined. Then, it is possible to create a work process plan with higher work efficiency in consideration of work personnel.

  Moreover, in the work process plan creating apparatus according to the embodiment of the present invention, the case where the work process plan is created for the manufacturing equipment for the ERW pipe has been described as an example. The present invention can be applied to other production facilities such as various shape steel production facilities having a plurality of stands. Further, the present invention can be applied not only to rolling but also to various processes such as welding, inspection, and surface treatment. Moreover, although the crane which is a conveyance equipment was illustrated as factory equipment, it is not limited to this, As long as it is used for a recombination work, various equipments, such as a component holding device and a delivery device, are employable.

  In the work process plan creating apparatus according to the embodiment of the present invention, the work condition data, the arrangement number data, the work process plan, and the board completion time data are the work condition database 21, the arrangement number database 22, and the work process plan database, respectively. 23 and the plate passing completion time database 24 are stored separately. However, for example, a database that stores all of these data together may be prepared. As long as the computing device 10 can access the corresponding database, the work process plan creation process according to the present invention can be executed.

  In addition, a work process plan creation program can be configured by configuring a program that causes the arithmetic device 10 to execute each step of the work process plan creation processing according to the embodiment of the present invention. In order to execute the work process plan creation program, for example, the work process plan creation program is stored in a main storage device (not shown) or an auxiliary storage device included in the arithmetic device 10 and the stored work process plan creation program is stored in the main storage device. You can read and execute it from time to time.

  As described above, the present invention includes various embodiments and the like not described in the present specification and drawings, and the technical scope of the present invention is an invention according to the scope of claims reasonable from the above description. It is determined only by specific matters.

DESCRIPTION OF SYMBOLS 1 Steel plate 2 ERW pipe 10 Arithmetic apparatus 11 Initial arrangement number setting part 12 Reassignment plan preparation part 13 Plan through plan preparation part 14 Plate through completion time calculation part 15 Arrangement number resetting part 16 Optimization plan extraction part 21 Work condition database 22 Number of persons arranged database 23 Work process plan database 24 Board passing completion time database 30 Input device 40 Display device A First processing equipment group a1 to a5 First processing equipment to fifth processing equipment B Rear processing equipment group b1 to b5 First Processing facility to fifth processing facility C1 to C3 First transfer facility to third transfer facility P1 to P7

Claims (7)

In a manufacturing facility for manufacturing a material product by providing a plurality of processing facility groups in which a plurality of processing facilities for processing materials are arranged side by side and passing the material over the plurality of processing facility groups, the processing facility A method of creating a work process plan that combines a recombination work of the member provided, and a confirmation work for confirming a work completion state by passing the material through the manufacturing facility after the recombination work,
The standby time of the work process constituting the reassignment work and the standby state of the factory equipment used for the reassignment work are displayed in a chart, the validity of the worker arrangement is evaluated, and the time of the whole work process is minimized. A work process plan creation method characterized by rearranging workers as described above.   The relocation of the workers is changed for each of the plurality of processing equipment groups within a preset constraint range of the worker personnel, and the operation state of the factory equipment is increased within a preset constraint range, The work process plan creation method according to claim 1, wherein the process is performed so as to reduce a waiting time in the reassignment work of the processing facility group. The multi-stage processing equipment group consists of a front-stage processing equipment group and a rear-stage processing equipment group,
The relocation of the workers is
For each of the front-stage processing equipment group and the rear-stage processing equipment group, set the number of workers arranged as an initial value,
3. The method according to claim 2, wherein a certain number of persons are assigned to the first-stage processing equipment group in an inclined manner from the initial arrangement number of the workers set for the second-stage processing equipment group. Work plan planning method. In addition,
A modified reassignment plan for creating the initial reassignment plan for performing the reassignment work using the number of assigned persons set as the initial value and for performing the reassignment work using the number of assigned persons set by the inclination distribution Create
Creating an initial confirmation work plan for performing the confirmation work using the initial reassignment plan and creating a correction confirmation work plan for performing the confirmation work using the modified reassignment plan;
Calculating initial time data for completing the confirmation work in the initial confirmation work plan, and calculating corrected time data for completing the confirmation work in the correction confirmation work plan;
Extracting the work process plan with the time data of the smallest value among the initial time data and the corrected time data as an optimized plan,
The work process plan creation method according to claim 3, wherein the workers are rearranged according to the optimized plan.   5. The work process plan creation method according to claim 1, wherein the material is a steel plate, and the material product is an electric resistance welded tube. In a manufacturing facility for manufacturing a material product by providing a plurality of processing facility groups in which a plurality of processing facilities for processing materials are arranged side by side and passing the material over the plurality of processing facility groups, the processing facility An apparatus for creating a work process plan that combines a recombination work of the members provided, and a confirmation work for confirming a work completion state by passing the material through the manufacturing facility after the recombination work,
The standby time of the work process constituting the reassignment work and the standby state of the factory equipment used for the reassignment work are displayed on a display device as a chart, the validity of the worker placement is evaluated, and the time of the whole work process is A work process plan creation device comprising an arithmetic device for rearranging workers so as to be minimized. In a manufacturing facility for manufacturing a material product by providing a plurality of processing facility groups in which a plurality of processing facilities for processing materials are arranged side by side and passing the material over the plurality of processing facility groups, the processing facility A program for creating a work process plan that combines a recombination work of the members provided, and a confirmation work for confirming a work completion state by passing the material through the manufacturing facility after the recombination work,
The standby time of the work process constituting the reassignment work and the standby state of the factory equipment used for the reassignment work are displayed in a chart, the validity of the worker arrangement is evaluated, and the time of the whole work process is minimized. Step to relocate the workers,
A program for creating a work process plan, which causes a computing device of a computer to execute a process including:

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