JP7574587B2 - Analysis device, analysis method, and analysis program - Google Patents

Description

The present invention relates to visualization of manufacturing history, and in particular, to visualization of the manufacturing history of sheet products.

When processing sheet products, the sheet is pulled from a roll, and the sheet is subjected to surface treatment and heat treatment in each device through which it passes, and then stored again as a roll. This process is repeated to manufacture sheet products. When an abnormality occurs in a product, it is often difficult to investigate the manufacturing condition history of the part where the abnormality occurred when the sheet product is manufactured through multiple manufacturing processes in this way. For this reason, technology that compares data acquired in multiple processes is being investigated. For example, Patent Document 1 and Patent Document 2 disclose such technology that compares data acquired in multiple processes.

The foreign matter inspection method of Patent Document 1 relates to a method for determining whether foreign matter detected in multiple inspection processes in a sheet product is the same. In the foreign matter inspection method of Patent Document 1, foreign matter detected in each inspection process is displayed on a map based on the coordinates in the long side direction of the sheet, and whether the foreign matter is the same foreign matter is determined based on whether the areas where the foreign matter exists overlap. In addition, the sheet product quality monitoring system of Patent Document 2 manages the position of the defect calculated from the unwinding length in association with data on the operating status of the manufacturing equipment.

JP 2019-191127 A JP 2010-70386 A

However, the technology of Patent Document 1 is insufficient in the following respects. The technology of Patent Document 1 determines whether the foreign objects detected in each inspection process are the same, but the worker must search and compare the historical data of the manufacturing conditions at the location where the foreign object was detected for each process, which can require complex and extensive work. Also, the technology of Patent Document 2 associates the data on the operating state of the equipment with the inspection data, but is unable to associate how the historical data of the operating state of the equipment changed at the time the foreign object was generated. Therefore, the technologies of Patent Documents 1 and 2 are insufficient as a technology for investigating the historical data of the manufacturing conditions of each process at the location where an abnormality was detected when an abnormality occurred.

In order to solve the above problems, the present invention aims to provide an analysis device etc. that can easily refer to data that associates manufacturing history data from multiple processes at each location on a sheet.

In order to solve the above problems, the analysis device of the present invention includes a data acquisition unit, a position identification unit, and a display unit. The data acquisition unit acquires manufacturing history data for a plurality of processes when manufacturing a sheet. The position identification unit associates manufacturing history data that are located at the same position in the long side direction on the sheet between the plurality of processes. The display unit displays the manufacturing history data that are located at the same position in the long side direction in association with each other at corresponding positions on a map showing the sheet.

The solution of the present invention obtains manufacturing history data for multiple processes when manufacturing a sheet. The solution of the present invention associates manufacturing history data that are located at the same position in the long side direction on the sheet between multiple processes. The solution of the present invention associates and displays manufacturing history data that are located at the same position in the long side direction on the corresponding position on a map showing the sheet.

The analysis program of the present invention causes a computer to execute a process for acquiring manufacturing history data for multiple processes when manufacturing a sheet. The analysis program of the present invention causes a computer to execute a process for associating manufacturing history data that are located at the same position in the long side direction on a sheet between multiple processes. The analysis program of the present invention causes a computer to execute a process for associating and displaying manufacturing history data that are located at the same position in the long side direction on corresponding positions on a map showing the sheet.

With this invention, it is easy to refer to data that links manufacturing history data from multiple processes at each location on the sheet.

1 is a diagram showing an outline of a configuration of a first embodiment of the present invention; 1 is a diagram illustrating a configuration of an analysis device according to a first embodiment of the present invention. FIG. 4 is a diagram showing an operation flow of the analysis device according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of data processing in the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a display screen according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a display screen according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a display screen according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a display screen according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a display screen according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a display screen according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a display screen according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a display screen according to the first embodiment of the present invention. 2A to 2C are diagrams illustrating an example of a manufacturing process of the first embodiment of the present invention. FIG. 11 is a diagram illustrating a configuration of an analysis device according to a second exemplary embodiment of the present invention. FIG. 11 is a diagram showing an operation flow of an analysis device according to a second exemplary embodiment of the present invention. FIG. 13 is a diagram showing an example of another configuration of the present invention.

(First embodiment)
A first embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a diagram showing an outline of the configuration of a quality control system of this embodiment. The quality control system of this embodiment includes an analysis device 10 and a management device 20. This quality control system has a function in which the management device 20 collects each piece of history data in the manufacturing process of a sheet, and the analysis device 10 displays the history data of each manufacturing process by superimposing it on each position in the long side direction on a map corresponding to the sheet.

The management device 20 is connected to each device in the sheet manufacturing process and an inspection device via a network. FIG. 1 shows an example in which the management device 20 is connected to a coating device, a drying device, and an inspection device. FIG. 1 shows an example in which two coating devices, two drying devices, and two inspection devices are installed, but the types and number of devices are not limited to those shown in FIG. 1. Also, FIG. 1 shows an example in which processing and inspection are performed in each process while the sheet is pulled out from the roll and wound onto the roll, but pulling out from the roll and winding up may be performed multiple times in the product manufacturing process.

The configuration of the analysis device 10 will now be described. FIG. 2 is a block diagram showing the configuration of the analysis device 10. The analysis device 10 includes a data acquisition unit 11, a position identification unit 12, an input reception unit 13, and a map display unit 14.

The data acquisition unit 11 acquires from the management device 20 historical data on the manufacturing conditions and inspection data for each device during sheet manufacturing. A sheet is a product whose long side is longer than its short side and whose thickness is thin. A sheet is also called a film.

The data acquisition unit 11 acquires data related to the manufacture of the sheet as historical data on the manufacturing conditions. Hereinafter, historical data on the manufacturing conditions is also referred to as manufacturing history data. The data acquisition unit 11 acquires data on materials, workers, measurements and inspections, equipment, work methods, and the environment as data related to the manufacture of the sheet.

As material data, for example, data on the material part number, lot number, amount used, auxiliary material part number, auxiliary material lot number, and amount used of the auxiliary material are acquired. The material data may also include information on the start time and end time of supply of each lot to the manufacturing process. The material data may also include quality data on the finished product and intermediate product. The quality data acquired may include, for example, data on length, foreign matter occurrence state, wrinkle occurrence state, scratch occurrence state, film thickness, and storage period. Occurrence state refers to, for example, shape, position, and number.

Data on the worker includes the ID of the worker who performed the work, the work content, the time the work was started, and the time the work was completed. Data on inspection records, repair content, and setup records may also be acquired as worker data. Setup records refer to, for example, records of changing jigs, test runs of equipment, and cleaning work.

As measurement and inspection data, for example, data on the product part number, lot number, measuring device identification number, and inspection machine identification number is acquired. As measurement and inspection data, product quality data is acquired. As product quality data, for example, data on the product's film thickness, surface temperature, defects, MI (Melt Index) value, and EW (Equivalent Weight) value is acquired. As defects, for example, data on foreign matter, wrinkles, and scratches on the product is acquired.

As equipment data, for example, the name of the equipment used in production, the unit number, operation start time, operation stop time, equipment stop duration, and reason for stop are acquired. As equipment data, data on the equipment setting parameters is acquired. As equipment parameters, for example, data on the heating temperature, heating time, temperature rise rate, feed speed, winding speed, pressure, tension, coating amount, ion concentration, rotation speed, and extrusion amount are acquired.

Data on work methods includes, for example, basic QC (Quality Control) process chart items, process numbers, process names, procedure numbers, procedure names, processing conditions, construction methods, equipment settings, measuring instrument settings, inspection device settings, equipment management methods, standard work methods, and standard work times.

As environmental data, for example, data on temperature, humidity, air pressure, and particle amount inside the building are acquired. Furthermore, the data on sheet production listed above is only an example, and data on all items does not need to be acquired, and data on items other than those listed above may also be acquired.

The position identification unit 12 associates the history data of the manufacturing process with the corresponding position in the long side direction of the sheet. The position identification unit 12 also converts the time series history data into position data corresponding to the position in the long side direction of the sheet, and associates the history data with the corresponding position on the sheet. By associating the time series history data with position data corresponding to the position on the sheet in the long side direction, it is possible to visualize which position on the sheet the time series history data corresponds to in the manufacturing history. The position data is indicated by the distance from the leading edge of the sheet in the long side direction. The leading edge of the sheet refers to the edge that is pulled out from the roll and enters the device first. The long side direction of the sheet corresponds to the sheet transport direction. The position identification unit 12 converts the time of the time series data into a position in the long side direction of the sheet based on the sheet transport start time and the transport speed.

The input acceptance unit 13 accepts input of the selection result of a data item by a worker. The input acceptance unit 13 acquires the selection result from an input device when the worker selects a data item to be displayed. The selection result is input, for example, by clicking with a mouse on a data item displayed on the screen to select it. The selection result may also be input by the worker touching a data item displayed on a display device equipped with a touch panel. The input acceptance unit 13 may also accept input of the selection result of a data item by recognizing the worker's voice. When accepting input through voice recognition, the input acceptance unit 13 is connected to a microphone that acquires the worker's voice.

The map display unit 14 generates data by superimposing each historical data of the manufacturing process during sheet manufacturing and the inspection data. The map display unit 14 generates data that associates each data with the position in the long side direction of the sheet, and generates map data. The map display unit 14 also outputs a map based on the generated map data to the display device. The map display unit 14 outputs display data used when selecting data items to display, together with the map, to the display device.

The management device 20 acquires data from each device and inspection device in the sheet manufacturing process and stores the acquired data. The management device 20 sends data used by the analysis device 10 for analysis to the analysis device 10. The management device 20 may acquire inspection data from multiple inspection devices in the intermediate and final processes when manufacturing the sheet. The management device 20 may acquire inspection data from inspection devices in multiple inspection processes in the intermediate process. The management device 20 may also acquire inspection data from an inspection device that performs inspection only in either the intermediate process or the final process. The management device 20 may also be provided as part of a production management system that instructs each device to start processing and on manufacturing conditions.

The operation of the quality control system of this embodiment will be described. FIG. 3 is a diagram showing the operation flow of the analysis device 10. When a sheet is manufactured, each device and inspection device in the manufacturing process stores history data and inspection data. The management device 20 acquires history data from each device and inspection device for each predetermined period. The predetermined period is set in hours or days. The management device 20 may also acquire history data from each device and inspection device for each predetermined number of lots or when the type of product being manufactured is changed. The management device 20 stores the history data acquired from each device and inspection device in a storage device inside the device or connected to the management device 20.

In FIG. 3, the data acquisition unit 11 of the analysis device 10 acquires history data of the lot to be analyzed from the management device 20 (step S11). The items of the history data to be acquired are set in advance for each type of sheet, for example. The lot to be analyzed and the items of the history data to be acquired may be selected by the operator.

When the data acquisition unit 11 acquires the history data, the position identification unit 12 associates the history data with a position on the long side of the sheet (step S12). For example, when the history data is data that records temperature data inside the device for each time, i.e., a time-series temperature data, the position identification unit 12 converts the time into a corresponding position on the long side of the sheet. The position identification unit 12 converts the time data into position data on the sheet based on the time when the leading edge of the sheet enters the area where temperature data is acquired and the sheet transport speed.

For example, when the sheet conveying speed is A (m/sec) and the time when the leading edge of the sheet enters the area where temperature data is acquired is _t0 , the position identifying unit 12 calculates the position of the sheet in the long side direction at time t using the distance D (m) from the leading edge of the sheet as D = (t - _t0 ) x A. When the conveying speed is in seconds, the position identifying unit 12 calculates (t - _t0 ) as the time difference in seconds.

If the acquired data is the length from a midpoint in the long side direction of the sheet, the position identification unit 12 converts the acquired data into data on the distance from the edge of the long side direction of the sheet. If the acquired data is data on the distance from the edge of the sheet, the acquired data is used as is.

When the position identification unit 12 converts each piece of data into data associated with a position in the long side direction of the sheet, the map display unit 14 generates map data that displays each piece of data associated with a position in the long side direction of the sheet on a map (step S13). When the map data is generated, the map display unit 14 displays the generated map data on the display device (step S14).

Figure 4 shows examples of history data and map data. The top left part of Figure 4 shows an example of history data of temperature in a manufacturing device. The history data in the top left part of Figure 4 is time and temperature data, so the position identification unit 12 converts the time and temperature data into position and temperature data. The data in the bottom left part of Figure 4 shows an example of inspection data, showing an example of wrinkles occurring in part of a sheet. The numbers below the sheet in the bottom left part of Figure 4 show the distance from the edge of the sheet. The bottom left part of Figure 4 shows an enlarged view of the range from 300 mm to 500 mm from the leading edge of the sheet.

The map display unit 14 generates data that associates temperature and wrinkles with the position in the long side direction, and generates map data as shown on the right side of FIG. 4. The map data on the right side of FIG. 4 is generated as a map in which temperature changes and wrinkles in the long side direction of the sheet are superimposed. The numerical values on the bottom of the sheet on the right side of FIG. 4 indicate the distance from the leading edge of the sheet. The right side of FIG. 4 shows the area from the leading edge of the sheet to the vicinity of more than 600 mm. In addition, the diagram on the right side of FIG. 4 indicates the high and low temperatures when treated with the heater shown in the upper right part of FIG. 4 by the density of points. For example, the area around 400 mm where the density of points is high indicates that the temperature is higher than other areas when treated with the heater. By referring to a map such as the one on the right side of FIG. 4, the worker can recognize that wrinkles have occurred in the area around 400 mm from the leading edge of the sheet, and that the temperature is higher than other areas. By referring to a map where the temperature is high near the location where the wrinkles have occurred, the worker can infer that the temperature change is the cause of the wrinkles.

Figure 5 shows an example of a display screen in which the inspection results, displayed as a map, are associated with the position of the temperature data along the long side and displayed as a graph. The numbers at the bottom of the map in Figure 5 indicate the distance from the leading edge of the sheet. The graph at the bottom of Figure 5 is a graph in which the temperature data for process A is associated with each position on the map, with the vertical axis indicating high and low temperatures. In the example of Figure 5, based on the same data as in Figure 4, the temperature data is displayed in association with the inspection results and the position along the long side, allowing the worker to more easily recognize the temperature change at the position where the wrinkles occurred by the change in the graph.

Next, a case where the displayed history data item is changed will be described. FIG. 6 is a diagram showing a typical example of a display screen in which the data item to be displayed is selected by the operator. In the example of the display screen in FIG. 6, buttons for the items of inspection and history data, such as "inspection", "temperature in process A", "pressure in process B" and "discharge amount in process B" are displayed on the left side. When the operator clicks on an item to be displayed using the mouse, the selection result of the item to be displayed on the map display unit 14 is sent via the input reception unit 13. In the example of FIG. 6, "inspection", "temperature in process A" and "discharge amount in process B" are selected, and the map display unit 14 generates data that combines the inspection results displayed on the map with the graph data of the temperature in process A and the discharge amount in process B corresponding to the position in the long side direction of the map. The selection of data may be performed by the operator touching the button part on a touch panel display device. Also, the selection may be canceled by clicking or touching the selected area again with the mouse.

Next, a case where candidates for display data are displayed by clicking on the map or touching the screen will be described. FIG. 7 shows an example where only the sheet inspection results are displayed. In FIG. 7, when the worker uses the mouse to click on the wrinkled area or touches the screen, the map display unit 14 displays candidates for items of history data for the related process as shown in FIG. 8. When the worker selects an item to be displayed from the candidates of history data, the map display unit 14 displays the data of the selected item on the map and on a graph as shown in FIG. 9. The example in FIG. 9 shows a case where "Process A Temperature", "Process B Pressure" and "Process B Discharge Volume" are selected. Based on the display screen as shown in FIG. 9, the worker can infer that the temperature of Process A caused the wrinkles, based on the result that the temperature of Process A has changed and the other items have not changed.

Next, an example of displaying information on related lots of the lot whose inspection results are displayed will be described. FIG. 10 shows an example of a case where related lot numbers are displayed when a wrinkled portion or map is clicked on a screen such as that of FIG. 5. Related lots are preset, such as several lots before and after the displayed lot. Also, lots that have been processed under the same conditions as the displayed lot or with the same material rod may be set as related lots. Also, lots that have been processed between pre-processing maintenance and post-processing maintenance of the device that processed the displayed lot may be set as related lots. Clicking on the number of a related lot may further display the inspection results and history data of the clicked lot. In this way, by displaying information on related lots, when an abnormality occurs, it is possible to easily check whether there are abnormalities in other lots.

Next, an example of displaying data on multiple sheets will be described. FIG. 11 shows an example of displaying a map for two sheets. By displaying multiple sheets in this way, it is possible to grasp whether the change occurred only in the lot in which the abnormality occurred, or whether the abnormality is common to multiple lots, making it easier to estimate the cause of the abnormality. Displaying multiple sheets also makes it possible to determine whether an abnormality occurred over a period longer than the manufacturing time of one sheet. Although FIG. 11 shows an example of two sheets, three or more sheets may be displayed. When displaying three or more sheets, for example, by displaying sheets for lots before and after the lot in which the abnormality occurred, it is easier to determine whether an abnormality occurred in other lots.

Although the above explanation shows an example of displaying one or more sheets, it is also possible to enlarge and display only a portion of a sheet. Also, it is also possible to display the entire sheet and the enlarged portion at the same time. By making it possible to change the display range according to the operator's operation, it becomes easier to analyze the cause of an abnormality.

In the above explanation, an example of displaying the temperature change in the long side direction was shown, but the temperature change in the short side direction may also be displayed. In FIG. 12, the film thickness data in the short side direction is displayed around 200 mm where the defect, which is displayed as a square on the map, occurred. Also, the temperature data is displayed around 600 mm. In the case of FIG. 12, the temperature data and film thickness data are measured by sensors at several points in the direction of rotation and recorded as two-dimensional data. If the film thickness and temperature are higher on the right side of the figure, it can be seen that the defects in the section from 200 mm to 400 mm away from the leading edge of the sheet are caused by a thin film thickness. Also, it can be seen that the defects in the area from 600 mm to 800 mm away from the leading edge of the sheet are caused by a high temperature. By displaying the temperature distribution and film thickness distribution in the short side direction in this way in relation to the position in the long side direction, the cause of the abnormality can be analyzed in more detail.

In the above description, an example of a sheet pulled out from one roll is shown, but the above described example may be applied to a sheet in which sheets pulled out from multiple rolls are laminated together. Laminating multiple sheets is also called lamination. FIG. 13 is a schematic diagram showing a state in which sheets pulled out from three rolls are laminated together, processed and inspected in each device, and then wound up into a single roll. In the fairness shown in FIG. 13, the history data and inspection data at the time of manufacturing each roll alone and the history data and inspection data of each process after the sheets are laminated are displayed as a map by associating the positions in the long side direction. With such a configuration, even in a sheet manufactured by laminating multiple sheets, it is easy to identify in which process an abnormality occurred, before or after the sheets are laminated. When laminating multiple sheets, data is associated based on the positions in the long side direction from the leading position of each sheet when laminating.

In the quality control system of this embodiment, the management device 20 collects device history data and inspection data, and the analysis device 10 associates data that are located at the same position on the sheet. The analysis device 10 also associates data that are located at the same position on the sheet with each other and displays them. Therefore, by using the quality control system of this embodiment, data that associates history data of multiple processes at each location on the sheet can be easily referenced. As a result, in the quality control system of this embodiment, by associating and displaying history data and inspection data that are located at the same position, it becomes easy to identify the cause when an abnormality occurs in a manufactured sheet.

Second Embodiment
The second embodiment of the present invention will be described in detail with reference to the drawings. FIG. 14 is a diagram showing an outline of the configuration of an analysis device of this embodiment. The analysis device of this embodiment includes a data acquisition unit 101, a position identification unit 102, and a map display unit 103. The data acquisition unit 101 acquires manufacturing history data of a plurality of processes when manufacturing a sheet. Specifically, the data acquisition unit 101 acquires, for example, manufacturing history data and inspection data of each device when manufacturing a sheet. The position identification unit 102 associates history data that are located at the same position in the long side direction on the sheet between a plurality of processes. The map display unit 103 associates manufacturing history data that are located at the same position in the long side direction with each other at corresponding positions on a map showing the sheet, and displays the associated data on a map. Specifically, the position identification unit 102 associates manufacturing history data and inspection data that are located at the same position in the long side direction of the sheet, and the map display unit 103 displays the associated data on a map.

Here, the data acquisition unit 11 of the first embodiment is an example of the data acquisition unit 101. Moreover, the data acquisition unit 101 is one aspect of the data acquisition means. The position identification unit 12 of the first embodiment is an example of the position identification unit 102. Moreover, the position identification unit 102 is one aspect of the position identification means. The map display unit 103 is an example of the map display unit 14 of the first embodiment. Moreover, the map display unit 14 is one aspect of the map display means.

The operation of the analysis device of this embodiment will be described. FIG. 15 is a diagram showing the operation flow of the analysis device of this embodiment. The data acquisition unit 101 of the analysis device acquires manufacturing history data of multiple processes when manufacturing a sheet (step S21). When the manufacturing history data is acquired, the position identification unit 102 associates manufacturing history data that are located at the same position in the long side direction on the sheet between multiple processes (step S22). When the manufacturing history data that are located at the same position are associated, the map display unit 103 displays the manufacturing history data that are located at the same position in the long side direction in association with each other at the corresponding position on the map showing the sheet (step S23).

The analysis device of this embodiment associates manufacturing history data for multiple processes that are located at the same position in the long side direction of the sheet with each other, and displays them in association with each other at corresponding positions on a map showing the sheet. Therefore, by using the analysis device of this embodiment, data that associates manufacturing history data for multiple processes at each location on the sheet can be referenced on a map, making it possible to compare the manufacturing history between multiple processes in the sheet manufacturing process in a visualized state.

The processes in the analysis device 10 of the first embodiment and the analysis device of the second embodiment can be performed by executing a computer program on a computer. FIG. 16 shows an example of the configuration of a computer 200 that executes a computer program that performs each process in the analysis device 10 of the first embodiment and the analysis device of the second embodiment. The computer 200 includes a CPU (Central Processing Unit) 201, a memory 202, a storage device 203, an input/output I/F (Interface) 204, and a communication I/F 205. The management device 20 of the first embodiment can also have a similar configuration.

The CPU 201 reads out and executes the computer programs that perform each process from the storage device 203. The memory 202 is composed of a DRAM (Dynamic Random Access Memory) or the like, and temporarily stores the computer programs executed by the CPU 201 and data being processed. The storage device 203 stores the computer programs executed by the CPU 201. The storage device 203 is composed of, for example, a non-volatile semiconductor storage device. Other storage devices such as a hard disk drive may be used for the storage device 203. The input/output I/F 204 is an interface that accepts input from the worker and outputs display data, etc. The communication I/F 205 is an interface that transmits and receives data between each device and the worker's terminal, etc.

The computer programs used to execute each process can also be stored on a recording medium and distributed. For example, a magnetic disk such as a magnetic tape for recording data or a hard disk can be used as the recording medium. An optical disk such as a CD-ROM (Compact Disc Read Only Memory) can also be used as the recording medium. A non-volatile semiconductor memory device can also be used as the recording medium.

REFERENCE SIGNS LIST 10 Analysis device 11 Data acquisition unit 12 Position identification unit 13 Input reception unit 14 Map display unit 20 Management device 101 Data acquisition unit 102 Position identification unit 103 Map display unit 200 Computer 201 CPU
202 Memory 203 Storage device 204 Input/output I/F
205 Communication I/F

Claims (10)

A data acquisition means for acquiring manufacturing history data of a plurality of processes after lamination of sheets when manufacturing a sheet in which a plurality of sheets are laminated together ;
a position specifying means for associating manufacturing history data of the same position in a long side direction on the sheet in each of the plurality of processes;
and a map display means for displaying, at corresponding positions on a map showing the sheets, manufacturing history data having the same position in the long side direction and at least one of manufacturing history data and inspection data at the time of the manufacture of each of the plurality of sheets individually, in association with each other. The data acquisition means further acquires inspection data of the sheet,
The analysis device according to claim 1 , wherein the map display means displays the test data by superimposing the test data at positions on the map corresponding to positions at which the test data was acquired. The analysis device according to claim 1 or 2, wherein the position identification means converts the time-series manufacturing history data into position data in the long side direction of the sheet, and associates the data with history data having the same position in the long side direction. The analysis device according to any one of claims 1 to 3, wherein the map display means displays the manufacturing history data of the multiple sheets in the order in which they were processed. An analysis device according to any one of claims 1 to 4, wherein the map display means displays the manufacturing history data of a selected item on the map. The analysis device according to any one of claims 1 to 5, wherein the map display means displays information related to an item selected on the map. Acquire manufacturing history data of a plurality of processes after lamination of the sheets when manufacturing a sheet in which a plurality of sheets are laminated together ;
Associating manufacturing history data having the same position in the long side direction on the sheet between the plurality of processes;
An analysis method in which manufacturing history data having the same position in the long side direction and at least one of manufacturing history data and inspection data during the manufacture of each of the multiple sheets are displayed in association with each other at corresponding positions on a map showing the sheets. Further obtaining inspection data of the sheet;
The analysis method according to claim 7 , wherein the inspection data is displayed superimposed on a position on the map corresponding to a position where the inspection data was acquired. The analysis method according to claim 7 or 8, in which the time-series manufacturing history data is converted into position data in the long side direction of the sheet, and associated with history data having the same position in the long side direction. A process of acquiring manufacturing history data of a plurality of processes after lamination of sheets when manufacturing a sheet in which a plurality of sheets are laminated together ;
A process of associating manufacturing history data of the same position in the long side direction on the sheet between the plurality of processes;
and displaying, at corresponding positions on a map showing the sheets, manufacturing history data for the same position in the long side direction and at least one of manufacturing history data and inspection data at the time of the manufacture of each of the plurality of sheets in association with each other.

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