JPH086629A - Operation composition device - Google Patents

Abstract

PURPOSE:To provide the operation composition device which can automatically perform efficient operation composition in a short time over a wide range of a production line in consideration of component layout and incidental times by operations without reference to the mode of the production line. CONSTITUTION:The operation composition device consists of an operation composition logic part 2 which is formed in a computer 1 and performs arithmetic for operation composition according to previously set composition conditions (including component layout conditions), a keyboard 3 for inputting parameters regarding the priority, etc., of the composition conditions, a data file 4 which contains various data required for the operation composition of an assembly line and incidental time data by the operations, a monitor 5 which has a function for correcting and editing the composition result displayed on a screen, and a printer 6 which outputs various documents.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work knitting apparatus capable of automatically carrying out work knitting on a production line on a computer in accordance with a predetermined knitting standard.

[0002]

2. Description of the Related Art Conventionally, in an automobile factory, work is assigned to workers in a line work by a head chief who prepares a primary plan in accordance with a knitting standard to be described later, and actually applies it to a line at an inconvenient place. It was done by repeating the so-called trial and error, such as correcting the.

At that time, as a standard of work organization, as a condition that should be absolutely adhered to, a work priority order (for example, a physical condition that the steering wheel must be attached after the steering shaft is attached), There are two things: to maintain fixed equipment conditions (line specifications). Also, as a necessary condition from the viewpoint of work efficiency and work load, the use of the same tool should be concentrated and work interference between front and rear processes should be avoided. Avoid heavy and minute work concentration, have two people perform symmetrical work, assign the same part work to the same worker, concentrate the same part work, secure parts storage It is taken into consideration that the work of the component target that is disliked to be dirty and the work of the component target that is easily soiled by the worker should be avoided.

In such a conventional work knitting method, there are many conditions to be taken into consideration, and there is a so-called trade-off relationship between these conditions (for example, the same concentration of use of the same tool). Not only is the level of knitting different depending on the length of the work (work length), such as which conditions are contradictory to concentration of part work, and which conditions are emphasized. The range that can be managed is also limited. Further, as described above, the evaluation scale of the knitting itself has not been clarified in connection with the fact that the knitting standard is ambiguous and many parts are left to the judgment of the master, and it is difficult to judge whether the knitting is good or bad. In this respect, conventionally, the goodness or badness of the knitting has been judged depending on whether or not the line is in operation and the number of knitting personnel.

[0005]

However, in connection with the "securing of parts storage space" in the above requirements,
Regarding the layout of parts in the work organization of the production line, conventionally, it has been done by repeating trial and error such as applying a certain part layout to an actual line and correcting inconvenient parts. However, in such a method, since there are quite a lot of conditions to be considered in the work organization as described above, in addition to the above organization standard, further consideration should be given to the organization and workability that logically consider the component layout. It was extremely difficult to make the formation.

As a technique for knitting an optimal process in a short time, there is a technique disclosed in, for example, Japanese Patent Laid-Open No. 21003/1992, which is used, for example, in manufacturing a refrigerator. It is premised on a production process in which the order of manufacturing work cannot be changed.For example, in a large product such as an automobile, the work order is independent depending on the part to be worked. We cannot handle it when producing. That is, for example, as shown in FIG. 9, it is possible to deal with the case where all the works are connected in a preceding relationship, but it is not possible to deal with the case where it is not (see the work network of FIG. 10, for example). In addition, this technology cannot support a mixed flow line that produces a plurality of types of products on a single production line. That is, as shown in FIG. 10, for example, the cabin-related work, the door-related work, the window-related work, and the sticker attachment work are independent of each other, and the independent work group constitutes the vehicle assembly work. Therefore, there is a mixture such as sticker sticking which work may be carried out in any path of any work division, and it is premised on a production process in which the order is fixed. Technology cannot handle it.

Further, in the work organization as described above, all of them are associated with each work, for example, a walking time for taking parts in one work, a time for moving a work site in the same work. Also, the moving time for moving to the next work and the tool changing time are not taken into consideration at all.

Of course, since this incidental time is always necessary for the work, it is not possible to perform work organization ignoring it at all. Therefore, such an incidental time is included in the work time of each work. Although there are cases where some work is included, for example, as shown in FIG. 11, after the work organization for each worker is completed, the attendant time associated with all works is added uniformly with a certain margin, The work is organized so that it can be settled within the tact. Such uniform addition of accompanying time may allow actual work to be performed without any problems depending on the environment of the production line and the combination of work, but in many cases, it does not seem to settle within the tact as a visual work organization. However, it does not add the incidental time that accompanies the actual work, so if you actually work according to this work organization, you will not be able to greatly extend from the tact or finish one work. However, there is a problem that the actual work is hindered, for example, the next work comes around.

Therefore, the present invention has been made in view of the above problems of the prior art, and is an efficient work in consideration of the component layout and the attendant time in each work regardless of the mode of the production line. An object is to provide a work knitting device capable of knitting over a wide range of lines in a short time.

[0010]

Means for Solving the Problems The present invention for achieving the above object comprises a storage means for storing various data necessary for work organization of a production line and associated time data associated with each work, and preset. Priority setting means for setting priority among a plurality of work organization standards, and work for which priority is set by the priority setting means based on various data and associated time data stored in the storage means And a work organization calculating means for calculating the work organization of the production line according to the organization standard.

Further, according to the present invention, a priority is placed between a storage means for storing various data necessary for work organization of a production line and associated time data associated with each work, and a plurality of preset work organization standards. Based on the priority setting means to be set, the various data and the accompanying time data stored in the storage means, according to the work organization standard in which the priority is set by the priority setting means and the preset component layout conditions. And a work organization calculating means for calculating the work organization of the production line.

In the present invention, the accompanying time data is
It is a work knitting apparatus characterized in that it includes a component taking walk time required for taking a component necessary for work, and the component taking walk time is classified according to the weight of the component.

Further, in the present invention, the work time according to any one of claims 1 to 3, wherein the work time data includes at least work time generated in association with a next work in work organization. It is a knitting device.

[0014]

In the present invention thus constructed, when the priorities are set between the work organization standards by the priority order setting means, the work organization calculating means stores the various data stored in the storage means. Based on the work organization standard in which the priority order is set, the work organization of the production line and the associated time required for each operation by the operation organization are calculated from the associated time data. Therefore, assignment of work to workers will be automatically performed according to certain clear criteria,
Since work organization is performed by adding necessary accompanying time to each work, efficient work organization can be performed in a wide range of the line in a short time for any type of production line.

Further, when the work organization of the production line is calculated by the work organization calculating means in accordance with the part layout condition in addition to the work organization standard in which the priority order is set, the work layout to the worker is the part layout. Since it will be automatically performed according to certain clear criteria including conditions, more efficient work organization in consideration of component layout will be performed over a wide range of the line in a short time for any production line. It can be carried out.

Further, in the present invention, the accompanying time includes a part taking walk time, that is, a time required for taking a part required for a certain work to a parts shelf and returning to the work place. By classifying the time according to the weight of the parts, the data storage capacity of the accompanying time data can be reduced for each part compared to the case where it is specified for each part. It is possible to handle the case where multiple parts are taken during walking time as data.

Further, in the present invention, the incidental time generated by the relation with the next work in the work organization is included as the incidental time. Can be calculated clearly.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a work organization device according to an embodiment of the present invention, FIG. 2 is a diagram for explaining the component layout conditions of this embodiment, and FIGS. 3 and 4 are a list of work data of this embodiment. FIG. 5 is a flowchart showing a part of the table, FIG. 5 is a flowchart showing the operation of this embodiment, FIG. 6 is a flowchart showing the contents of the subroutine of FIG. 5, and FIG. 7 is a flowchart showing the contents of the subroutine of FIG. In this embodiment, 1
A work organization for a mixed flow assembly line for assembling two types of vehicle bodies on a book line will be described as an example.

As shown in FIG. 1, the work knitting apparatus of this embodiment comprises a work knitting logic unit 2 which is formed in a computer 1 and executes a work knitting operation, and the work knitting logic unit 2 has data, commands and the like. Keyboard 3 for inputting
A data file 4 in which various data necessary for the work organization of the assembly line are stored, a monitor 5 that displays the results organized by the work organization logic unit 2 on the screen, and a printer 6 that outputs various forms. It is configured. The storage means is formed by the data file 4, the priority setting means is formed by the keyboard 3, and the work formation calculating means is formed by the work formation logic unit 2.

The work organization logic unit 2 stores preset work selection conditions as work organization standards. As described above, the work selection conditions include absolute conditions that must be strictly obeyed and necessary conditions that are required in terms of work efficiency and work load. Absolute conditions include the above-mentioned absolute conditions such as observing work priority and observing fixed equipment conditions (line specifications), and necessary conditions are to concentrate the use of the same tool (hereinafter referred to as "same tool"). The same applies hereinafter), work interference should be avoided (“work interference”), concentration of heavy muscles / fine work should be avoided (“heavy muscle / fine”), and symmetrical work should be performed by two people. (“Symmetric work”), assigning the same part work to the same worker (“same part”), concentrating work on the same part (“same part”), and parts that dislike being contaminated There is the above-mentioned necessary condition such that the work of (1) and the work of the parts subject to the operator are easily mixed (“clean / dirty”).

In the present embodiment, in addition to the above conditions, rules relating to component layout are preset as component layout conditions. For example, the absolute condition is added with the condition that the line side area condition is to be observed, and the necessary condition is to place frequently-produced parts in the middle stage of the parts shelf (“high-frequency parts”), weight. The three conditions of placing parts in the middle or lower part of the parts shelf (“heavy parts”) and arranging parts along the line advancing direction (“line advancing direction”) (these are placed on the parts shelf below) (Collectively referred to as a condition) is added. Here, the line side area means a component shelf installed on the line side (see the front view of the component shelf in FIG. 2A).
It is defined by the area of the parts shelf, that is, pitch length × height. In addition, as shown in FIG. 2A, the component shelf is divided into an upper stage, a middle stage, and a lower stage, has a certain area, and can be freely set according to the line pitch.

The line side area condition as an absolute condition is a condition that the relational expression "line side area × permissible rate ≧ Σ component line side exclusive area" must be satisfied in the allocation to one worker. . Here, the tolerance rate is the ratio of the range in which each worker can act to the line side area, and the part line side exclusive area is the area of each part as seen from the line side. It is determined by the size and packing. In such a line side area condition, the line side space is physically limited, and moreover, each worker can occupy the line side area (parts shelf area).
Each has its own personal limitations.

Among the arrangement conditions on the parts shelves, two necessary conditions are to arrange the parts that are frequently produced in the middle stage of the parts shelf and to place the heavy parts in the middle stage or the lower stage of the parts shelf. This is because the work load is improved by reducing the load on the person (especially the load on the waist). That is, in general, the middle stage is the easiest to take out parts, and the lower stage has a high load because the worker has to bend his waist, so from the viewpoint of workability including work load, the parts that are frequently produced are in the middle stage. It is preferable that the heavy parts are placed in the middle or lower part of the parts shelf because heavy parts cannot be placed on the upper part. Further, among the arrangement conditions on the parts shelf, the necessary condition that the parts are arranged along the line advancing direction is to further improve workability in consideration of the walking pattern of the worker. That is, in order to minimize the walking path of the worker when the work parts are concentrated, it is necessary to take out the parts in order from the end of the parts shelf along the traveling direction of the line (see FIG. See B)).

The work organization logic unit 2 automatically calculates the work organization of the line in accordance with the conditions for such work selection,
Although the work is assigned to the workers, in the present embodiment, the work selection conditions can be prioritized, and the work organization is organized according to the priority. For example, regarding the priority order between necessary conditions other than component layout conditions, avoidance of work interference is a knitting condition between lines, and the same part, the same tool, and the like are knitting conditions in one stage of a line.
Pattern 1 having a priority of heavy muscle / fine, pattern 2 having the same tool, the same part, priority of heavy muscle / fine, etc. can be arbitrarily set. Which pattern is used for knitting can be freely set or selected by the operator's operation of the keyboard 3 according to the situation. In addition, the work organization logic unit 2 can quantitatively evaluate its own organization result by calculating, for example, the degree of fulfillment of the production tact or the average allocation time per unit of personnel.

Further, the work organization logic unit 2 calculates the associated time for each work to be assigned,
Calculate and add when allocating work. The accompanying time is, for example, a time required to move a work part, which is a time required to move parts, a time required to change a tool, a time required to take a part, a time taken to take a part,
There is a walking time between pitches that calculates how much will be flowed by the movement of the conveyor when the work of the table is completed.For the movement time between parts, a table for knowing the time required for movement between parts will be described later. It is included in the work data, and is calculated by referring to this table.
Similarly, there is a similar table for tool change time,
Calculate from this. The parts-taking walk is calculated from the size of the parts in each work based on the work data, and the walking time between pitches is uniformly added because the time passed by the conveyor is constant.

The data file 4 is roughly divided into work data regarding work, worker data regarding workers, and
The production data regarding production and the equipment data regarding equipment are stored. The work data includes reference time (time required for one work), work priority, tools used, work parts,
Applicable equipment, area occupied by parts line side, parts weight, and accompanying time in each work. This work data is stored in the form of a list for each work, that is, one part, as shown in FIG. The component taking walking time, which is one of the accompanying time data in the work, is also stored therein. In addition, this part-taking walking time is not divided into each part, but roughly divided into large parts, medium-sized parts, and small parts. It is assumed that one piece, two pieces for medium-sized parts and four pieces for small-sized parts can be brought, and the walking time for one time is 0.
It is specified as 08 minutes.

As the accompanying time, a table for associating each part with the work to be carried out next with respect to the accompanying time generated in relation to the next work in the work organization, for example, the moving time between parts and the tool changing time. Is stored as, for example, the movement time between parts is as shown in FIG. This table shows that, for example, after the work site FR, the time that occurs when moving to the next work site ER is 0.03 minutes. In addition, the walking time between pitches, which is the time required to move according to the movement of the production line and to return when moving to the next work, is stored as a uniform time calculated from the movement time of the line conveyor. Therefore, a value appropriately changed depending on the operation time (movement of one pitch from one step to the next step) of the line conveyor is stored.

Further, as the worker data, the proficiency level of each worker for a certain work is stored, and as the production data, the planned production number and the working system (tact) are stored. Equipment data are line specifications.

The work organization logic unit 2 looks up the various data in the data file 4 and, in accordance with the various conditions including the necessary condition of the priority order and the component layout condition determined by the operator, all the stages of the line. Execute the work organization of. The operation at this time is shown in FIG.
As shown in the flow chart of FIG. 7, a mixed flow line for manufacturing two types of vehicle bodies P and Q will be described here. In this case, the target tact is set based on the total work amount of each vehicle system and the number of produced vehicles, and work organization is performed.

The target tact for each vehicle system can be obtained as follows.

[0032]

[Table 1]

For example, as shown in Table 1 above, the target tacts of the vehicle systems P and Q are x minutes and y minutes, respectively, and the production tact (cycle time) of the line is 2 minutes. The production numbers will be 100 minutes, 6000 units / month, and 120 minutes, 4000 units / month. At this time, the target tacts x and y can be obtained by solving the following equations 1 and 2 simultaneously. 6000x + 4000y = (6000 + 4000) × 2 Formula 1 x / 100 = y / 120 Formula 2 When Formula 1 and Formula 2 are solved simultaneously, x = 50/27, y = 2
0/9 is obtained. Therefore, the target tacts of the vehicle systems P and Q are calculated to be about 1.85 minutes and about 2.22 minutes, respectively. This target tact is a guideline for the amount of work per vehicle in each vehicle system, and of course manual input is possible.

Next, the flow chart will be described. As shown in FIG. 5, first, when the parameters of the production tact and the priority order are input by the operation of the keyboard 3 by the operator (S1), the work organization logic section 2 receives the data. The necessary data is fetched while looking up the data in the file 4 (S2), and the line is set in accordance with the knitting condition having the priority set or selected by the operator so that it is contained in the production tact input by the operator. The work is automatically arranged by sequentially allocating the work from the first stage to the last stage, and then the evaluation for this knitting result is calculated (S3).

The content of the subroutine of step 3 is as shown in FIG. 6. First, based on various data,
Calculation of mixed flow ratio of vehicle systems P and Q (for example, calculation of target tact), calculation of various work amounts (for example, total work amount of each vehicle system, total work amount for each work site), information setting for each work node (for example, Whether or not allocation is possible, the amount of work remaining in subsequent passes, the calculation of the amount of work between facilities (for example, the earliest stage for each work (the earliest stage involved in the work), the latest stage (absolutely relevant by this point) The pre-processing calculation such as the stage where the work must be finished)) is executed (S5). Then, a precondition (for example, whether the work time is shorter than the tact time or whether the number of work stages is sufficient) is checked (S6), and if the result is NG, the process immediately returns and outputs an output indicating that NG. On the other hand, OK
If so, the first stage is set, and the work is narrowed down and selected according to the allocation rule (knitting condition) as described above (S8).

The content of the subroutine of step 8 is as shown in FIG. 7. First, the work is selected according to the rule in descending order of priority (S1).
2). For example, in the case of the above-mentioned pattern 1, that is, the same part, the same tool, and the priority of heavy muscle / fine, the absolute conditions of observing the work priority and observing the fixed equipment conditions are satisfied, and then the The work is applied in order from the highest priority, that is, work is selected in the priority order of the same part, the same tool, and the heavy muscle / fine. Then, it is judged whether the selected work satisfies the line side area condition, which is an absolute condition of the component layout conditions (S13), and the placement condition on the component shelf (“high (Frequency parts "," heavy parts "," line advancing direction ") is determined (S14). The arrangement condition on the parts shelf is not limited to the case where all three conditions of “high frequency parts”, “heavy parts”, and “line advancing direction” are satisfied, and at least one or more may be satisfied according to the selection. . If either one of the line side area condition and the condition for arranging on the parts shelf is not satisfied as a result of the judgment in steps 13 and 14, the process returns to step 12 and another work is selected.

On the other hand, if both the line side area condition and the arrangement condition on the parts shelf are satisfied, the selected work organization is temporarily stored in the temporary file, and next,
The accompanying time is calculated (S15).

In the calculation of the accompanying time, for example, the part movement time is not added when the works stored in the temporary file are the same part work, and the next work is different from the preceding work. In the case of work, the time required for the preceding work part and the next work part is searched from the table shown in FIG. 4 and added. Similarly,
The tool exchange time is also added by referring to the table only when the next operation requires the tool exchange with respect to the preceding operation. Further, as described above, the part-taking walking time depends on whether the part to be picked up in each work is large, medium, or small, and the walking time for each work ( 0.08 minutes) is added, and for the walking time between pitches, the pitch time from the operation time of the line conveyor is uniformly added. FIG. 8 shows an example of work organization in which work time is added in this way. As you can see from this figure,
In the present embodiment, work organization is performed in a form in which required time is added to each work.

When the calculation of the accompanying time is completed, it is judged whether or not the one including the accompanying time falls within the tact (S1
6) If it does not enter, return to step 12, start over from work selection, and if the tact is satisfied, allocate the work in sequence for each vehicle system (S17), assign work parts and tools to temporary files (S18) and returns to the branch source routine (S8 of FIG. 6).

Then, the process of step 8 is performed under the condition of ending the section (for example, the target tact ± α of the vehicle system is satisfied, or the weighted average of each vehicle system satisfies the production tact ± α). The process is executed until it is satisfied (S9), and if there is any remaining work (S10), the next stage is set (S11) and the process returns to step 8. If there is no remaining work in step 10, the process returns.

The knitting result in step 3 is output to the monitor 5 or the printer 6 (S
4).

The monitor 5 has a knitting board function, that is,
The operator (such as the chief) can edit and edit the knitting result while looking at the screen, which allows the chief to add his / her own experience and match the actual situation more efficiently. Can be a work organization. Since the monitor 5 is connected to the printer 6, the result corrected / edited by the monitor 5 can be printed out.

Various forms are output from the printer 6. The output as a form includes, for example, a work instruction, a training plan, a work data list, a work allocation list for each worker, and the like. On these forms, for example, evaluations such as the degree of fulfillment of the production tact and the average allocation time per person unit are also printed.

As described above, according to the present embodiment, after the priority is arbitrarily set in the condition of the work organization, the work is automatically selected according to a certain clear standard thus prioritized, and each work is selected. Since the system is constructed by using a computer so that the work time can be calculated by calculating the accompanying time in, the work work can be efficiently performed over a wide range of the line in a short time. At that time, it is possible to deal not only with a production process in which the order of manufacturing operations cannot be changed (see, for example, FIG. 9) but also in the case of producing an uncertain product in which the operation order can be changed (see, for example, FIG. 10). It can also be applied to mixed flow lines that produce multiple types of products. Further, since the standard is clear, the composition result can be evaluated quantitatively.

Further, in this embodiment, since the work layout is performed in consideration of the component layout by adding the component layout conditions such as the line side area condition and the component rack placement condition to the work selection condition, it is limited. In addition to satisfying the physical constraint of a line side space with a large area (securing the parts storage area), parts with high production frequency and heavy parts are placed in a position where workers can easily take them out, and parts placement that matches the walking pattern of the worker is achieved. The work load is reduced, workability is significantly improved, and more efficient work organization can be assembled.

Further, in this embodiment, as the accompanying time,
Predetermined how much time is required for the preceding work and the next work, not only for the part-taking walk, which is the work-related time, but also for the movement between parts and the tool change time, which are the work-related time in the order of work organization. In order to extract from the table and add up, it is possible to construct a work organization in which the accompanying time that changes depending on the connection between each work and the next work is taken into consideration.

[0047]

As described above, according to the present invention, the work to be organized in the production line is selected according to the work organization standard in which the priority order is set, and the accompanying time is added to each selected work, Since the calculation is performed, the work assignment to the worker is automatically performed according to a certain clear standard, and the production line of any mode can be
Efficient work organization can be performed over a wide range of lines in a short time.

Further, according to the present invention, the work organization of the production line is calculated according to the part layout condition in addition to the work organization standard in which the priority order is set. It will be done automatically according to certain clear criteria including conditions,
With respect to any type of production line, more efficient work organization can be performed in a short time over a wide range of the line in consideration of parts layout.

Further, as the attendant time in the present invention, the component taking walking time is classified by the weight of the component,
When the data storage capacity of the accompanying time data is attached to each part, it can be made smaller than when it is specified for each part. Also, when a light weight part is taken in one part, it takes more than one part in one walking time. Can be treated as data. Further, by including the incidental time caused by the relation with the next work in the work organization as the incidental time, it is possible to clearly calculate the incidental time related to the next work for each work, which is a wasteful incident time. Can be prevented from being added, and efficient work organization can be performed.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a work organization device according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining a component layout condition of the embodiment.

FIG. 3 is a diagram showing a part of a list of work data of the embodiment.

FIG. 4 is a diagram showing an example of a table showing the movement time between parts of the embodiment.

FIG. 5 is a flowchart showing the operation of the embodiment.

FIG. 6 is a flowchart showing the contents of the subroutine of FIG.

FIG. 7 is a flowchart showing the contents of the subroutine of FIG.

FIG. 8 is a diagram showing an example of work organization performed according to the embodiment.

FIG. 9 is a diagram showing an example of a mode of a production line.

FIG. 10 is a diagram showing another example of the aspect of the production line.

FIG. 11 is a diagram showing an example of a conventional work organization. FIG. 11 is a diagram showing another example of aspects of a production line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Computer 2 ... Work organization logic part (work organization calculation means) 3 ... Keyboard (priority setting means) 4 ... Data file (storage means) 5 ... Monitor 6 ... Printer

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsue Saita 2 Takara-cho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd.

Claims (4)

[Claims] 1. A storage means for storing various data necessary for work organization of a production line and associated time data associated with each work, and a priority order for setting a priority order between a plurality of preset work organization standards. Setting means, and work organization calculating means for calculating the work organization of the production line according to the work organization standard whose priority is set by the priority setting means based on various data and associated time data stored in the storage means. And a work knitting device. 2. A storage means for storing various data necessary for work organization of a production line and associated time data associated with each work, and a priority order for setting a priority order between a plurality of preset work organization standards. Setting means, work on the production line according to a work organization standard whose priority is set by the priority setting means and preset part layout conditions based on various data and associated time data stored in the storage means A work knitting apparatus comprising: a work knitting calculation means for calculating a knitting. 3. The component accompanying time data includes a component taking walk time required for taking a component required for work, and the component taking walk time is classified by the weight of the component. Alternatively, the work knitting device described in 2. 4. The work organization device according to claim 1, wherein the associated time data includes at least an associated time generated in association with the next work in terms of work organization.