JP6158569B2 - Metal foil manufacturing equipment, shape accuracy management method, metal foil manufacturing control device, and metal foil manufacturing control program - Google Patents

Description

  The present invention relates to the manufacture of metal foil.

  For example, in the invention described in Patent Document 1, the shape of the metal foil is measured by calculating the elongation at each position in the width direction of the metal foil wound on the take-up reel.

JP-A-2-13806

Patent Document 1 is limited to a description relating to a method for measuring the shape of a metal foil, and it is unclear how to manage and improve the flatness accuracy of the metal foil.
An object of this invention is to manage and improve the flatness precision of metal foil in view of the said point.

In order to achieve the above object, the first invention of the present application is provided in a metal foil manufacturing facility on a delivery side of a rolling mill (10) that rolls metal according to rolling conditions to form a metal foil, and on the exit side of the rolling mill (10). 1st measuring device which was calculated based on the measured value of the 1st measuring device (40) which measures distortion in each part of the width direction of metal foil, and the 1st measuring device (40) The first correction unit (10C) for correcting the rolling conditions by using the value, the winder (20) for winding the metal foil that has been measured by the first measuring device (40) into a coil shape, and the coil shape A rewinding machine (30) for rewinding the metal foil wound around the second, a second measuring device (50) for measuring strain at each position in the width direction of the metal foil rewinded by the rewinding machine (30), 2 The second shape value calculated based on the measurement value of the measuring instrument (50) is a predetermined condition set in advance. When becomes, characterized in that it comprises a second correction unit for correcting the rolling conditions by using the second shape value and (10C).

  Thereby, in the first invention, when the second shape value becomes a predetermined condition set in advance, the rolling condition is corrected using the second shape value, so that the second measuring device (50) Is reflected in the control of the rolling mill (10).

  Therefore, the flatness accuracy of the metal foil can be improved and high flatness accuracy can be maintained. The “predetermined condition” regarding the first shape value and the “predetermined condition” regarding the second shape value may be either the same condition or different conditions.

The first invention preferably has the following configuration.
That is, the second shape value is a value indicating a shape defect in the width direction of the metal foil, and is a value using a component value of a predetermined order extracted from the measurement value. Further, the second correction unit (10C) , (A) one preset order component, or (b) the sum of two or more preset order components as the second shape value, and the rolling condition when the second shape value becomes a predetermined condition To correct.

  The first shape value is a value indicating a shape failure in the width direction of the metal foil, and is a value using a component value of a predetermined order extracted from the measurement value. The first shape value and the second shape value are: The shape value is composed of the same order components.

  Thereby, since the rolling condition can be corrected using the correction result of the second correction unit (10C) as it is, the measurement result of the second measuring device (50) can be quickly reflected in the control of the rolling mill (10). it can.

  Incidentally, the reference numerals in parentheses for each of the above means are examples showing the correspondence with the specific means described in the embodiments described later, and the present invention is indicated by the reference numerals in the parentheses of the above respective means. It is not limited to specific means.

It is a schematic diagram of metal foil manufacturing equipment. (A)-(d) is a graph which shows the example of a shape parameter. It is a key map of control part 10C of metal foil manufacture equipment concerning a 1st embodiment of the present invention. It is a flowchart which shows the control action of 10 C of control parts. It is a graph which shows the change of a shape value, and the effect of invention. It is a key map of control part 10C of metal foil manufacture equipment concerning a 2nd embodiment of the present invention.

  The “embodiment of the invention” described below shows an example of the embodiment. In other words, the invention specific items described in the claims are not limited to the specific means and structures shown in the following embodiments.

  In this embodiment, the metal foil manufacturing facility, the shape accuracy management method, the metal foil manufacturing control device, and the metal foil manufacturing control program according to the present invention are applied to a metal foil manufacturing facility that manufactures aluminum foil. is there. Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that at least one member or part described with at least a reference numeral is provided, except for cases where “plural”, “two or more” and the like are omitted.

(First embodiment)
1. Configuration of Metal Foil Manufacturing Equipment As shown in FIG. 1, the metal foil manufacturing equipment 1 includes at least a rolling mill 10, a winder 20, a rewinding machine 30, and the like. The rolling mill 10 includes at least a pair of work rolls 10A, a backup roll 10B, a control unit 10C, and the like. And the rolling mill 10 rolls a metal into metal foil according to rolling conditions.

  The pair of work rolls 10A rotate while being in contact with the work in a state where a metal to be rolled (hereinafter referred to as a work) is sandwiched from both sides in the thickness direction. The backup roll 10B reinforces the bending of the pair of work rolls 10A. An intermediate roll may be provided between the backup roll 10B and the work roll 10A.

  The control unit 10C controls the work roll 10A, the backup roll 10B, the intermediate roll, and the like by a known method (for example, “intermediate roll shift”) so that the work is rolled according to the rolling conditions. The rolling condition is a shape control condition used when actually controlling the work roll 10A and the like, and is a condition determined based on a first shape value or a second shape value described later.

  Note that a thin plate-like workpiece is continuously fed from the feeder 11 to the rolling mill 10. That is, the rolling mill 10 discharges the rolled workpiece to the winder 20 side while continuously rolling the thin plate-like workpiece wound around the feeder 11.

  The winder 20 winds up the metal foil rolled by the rolling mill 10 in a coil shape. A first measuring device 40 is provided between the winder 20 and the exit side of the rolling mill 10. The first measuring device 40 measures strain at each position in the width direction of the metal foil discharged from the rolling mill 10.

  The rewinding machine 30 has a rewinding part 30A and a winding part 30B. The rewinding unit 30 </ b> A rewinds the metal foil wound up by the winder 20. The winding unit 30B rewinds the metal foil that has been rewound from the rewinding unit 30A.

  A second measuring device 50 is provided between the rewinding unit 30A and the winding unit 30B. The second measuring instrument 50 measures the strain at each site in the width direction of the metal foil that has been rewound by the rewinder 30. Specifically, the 2nd measuring device 50 measures the distortion in each site | part of the width direction of a workpiece | work in the location which becomes substantially planar among the metal foil which moves from the rewinding part 30A to the winding part 30B.

  The measured value of the first measuring device 40 and the measured value of the second measuring device 50 are input to the control unit 10C. The control unit 10 </ b> C calculates a first shape value based on the measurement value of the first measuring device 40 and a second shape value based on the measurement value of the second measuring device 50.

  The first shape value and the second shape value are values indicating a shape failure in the width direction of the metal foil, and are values using component values of a predetermined order extracted from the measured values. The first shape value and the second shape value according to the present embodiment are described in Japanese Examined Patent Publication No. 7-34930, etc. “A shape parameter that represents a plate shape defect of a rolled material using a method that approximates the order component of a polynomial. Is.

  The shape parameter is a component that represents the plate shape defect of each order when the flatness (deviation from the target value) in the plate width direction immediately after rolling is approximated by a linear polynomial. As shown in FIGS. 2A to 2D, when the order is an odd number, it means asymmetry on the left and right in the width direction. When the order is an even number, it means an order component of a shape defect that is symmetrical on the left and right sides in the width direction.

  The first shape value and the second shape value according to the present embodiment are either (a) one preset order component or (b) the sum of two or more preset order components. In the present embodiment, the sum of the primary component and the tertiary component is employed as the first shape value and the second shape value. That is, the first shape value and the second shape value are shape values composed of the same order components.

2. Control of Metal Foil Manufacturing Equipment The control unit 10C implements the shape accuracy management method using the metal foil manufacturing control program according to the present invention. Specifically, 10 C of control parts determine the rolling conditions for actually controlling the work roll 10A etc. based on a 1st shape value or a 2nd shape value, and work roll 10A according to the determined rolling conditions Control etc.

  Then, the control unit 10C uses the first shape value when the number of times when the first shape value exceeds the preset first predetermined range exceeds the preset first predetermined number of times. After correcting the rolling conditions, a first correction function for controlling the work roll 10A and the like under the corrected rolling conditions, that is, a first correction process is executed.

  Furthermore, the control unit 10C uses the second shape value when the number of times when the second shape value exceeds a preset second predetermined range exceeds the preset second predetermined number of times. Then, after correcting the rolling conditions, a second correcting function for controlling the work roll 10A and the like under the corrected rolling conditions, that is, a second correcting step is executed.

  The first predetermined range and the second predetermined range, the first predetermined number of times and the second predetermined number of times are based on the specifications of the first measuring device 40 and the second measuring device 50, the flatness of the metal foil finally obtained, and the like. It is a numerical value determined by The first predetermined range and the second predetermined range may be the same numerical value or different numerical values. Similarly, the first predetermined number of times and the second predetermined number of times may be the same number of times or different times.

  As illustrated in FIG. 3, the control unit 10 </ b> C includes a CPU, a RAM, and a computer having a nonvolatile storage unit such as a ROM and an HDD. And the control program for metal foil manufacture which performs determination of above-mentioned rolling conditions, correction, and control of the work roll 10A etc. is memorize | stored beforehand in the non-volatile memory | storage part.

  FIG. 4 is a flowchart showing a schematic operation of the control program for manufacturing metal foil. The control program for manufacturing metal foil is activated when the metal foil manufacturing facility 1 is activated, and is executed by the CPU, that is, the control unit 10C.

  When the control program for manufacturing metal foil is started, the first shape value and the second shape value are calculated (S1, S3). In FIG. 4, S3 is executed after the execution of S1, but a pattern in which S1 is executed after the execution of S3 or a pattern in which S1 and S3 are processed in parallel may be used. Further, when the signal from the second measuring instrument 50 is not input, that is, when the rewinding of the workpiece is not executed, S5 is executed without executing S3.

  When the first shape value and the second shape value are calculated (S1, S3), at least one of the first shape value and the second shape value satisfies a predetermined condition set in advance. It is determined whether or not (S5).

  Specifically, as described above, at least one of the first shape value and the second shape value exceeds a predetermined range, and the number of times exceeds the predetermined number. It is determined whether or not (S5). Hereinafter, when the first shape value and the second shape value are collectively referred to, they are simply referred to as “shape value”.

  The number of times the shape value has exceeded the predetermined range is, for example, the number of integrations of the number of times that the shape value has exceeded the predetermined range after the previous determination in S5 as YES. That is, when it is determined YES in S5, the integration number is reset to 0.

  If it is determined in S5 that the shape value satisfies the predetermined condition (S5: YES), the rolling condition is corrected using the shape value that has become the predetermined condition, and then the correction is made. The rolling mill 10 is controlled under rolling conditions.

  Note that the first shape value and the second shape value do not satisfy a predetermined condition at the same time. However, if the first shape value and the second shape value satisfy a predetermined condition at the same time, the rolling condition is corrected using the second shape value.

3. Features of Metal Foil Manufacturing Equipment According to this Embodiment In this embodiment, when the second shape value becomes a predetermined condition set in advance, the rolling condition is corrected using the second shape value. Therefore, the measurement result of the second measuring device 50 is reflected in the control of the rolling mill 10. Therefore, the flatness accuracy of the metal foil can be improved and high flatness accuracy can be maintained.

  The first shape value and the second shape value are characterized by being shape values composed of the same order components. Thereby, since the rolling condition can be corrected using the correction result using the second shape value as it is, the measurement result of the second measuring device 50 can be quickly reflected in the control of the rolling mill 10.

  FIG. 5 is a graph showing changes in the first shape value and the second shape value, that is, the characteristics of the present embodiment. That is, in the example shown in FIG. 5, the rolling condition is corrected when the shape value exceeds a predetermined range of three times or more. In FIG. 5, when the second shape value exceeds the predetermined range of three times or more, the rolling condition is corrected, so that the shape value of the metal foil quickly converges within the predetermined range. The coil number is a number that identifies the metal foil that has been rolled.

(Second embodiment)
In the above-described embodiment, the second correction function in which the rolling condition is automatically corrected by the control unit 10C when the second shape value is in a state that satisfies the predetermined condition set in advance, that is, the second correction process. Was implemented.

  On the other hand, in the present embodiment, when the second shape value is in a state satisfying a predetermined condition, the control unit 10C indicates that the second shape value is in a state satisfying the predetermined condition. And the alerting | reporting function which alert | reports that rolling conditions should be corrected is performed.

  Thereby, the operator of the metal foil manufacturing facility 1 executes a process for correcting the rolling condition based on the value of the second shape value. Therefore, also in this embodiment, the measurement result of the second measuring device 50 is reflected in the control of the rolling mill 10. Therefore, the flatness accuracy of the metal foil can be improved and high flatness accuracy can be maintained.

  Specifically, as shown in FIG. 6, for example, a display unit such as a display or a voice or a lamp is provided as the notification unit 60 that performs the notification. The control unit 10C prompts the operator to correct the rolling conditions via the notification unit 60 when the second shape value satisfies a predetermined condition set in advance. In FIG. 6, the same components as those in the first embodiment are denoted by the same reference numerals.

(Other embodiments)
In the above-described embodiment, the “predetermined preset condition” is “when the shape value exceeds the preset predetermined range and the number of times the shape value exceeds the preset count”. The invention is not limited to this, and other conditions may be used.

In the above-described embodiment, the “shape parameter” is used as the “shape value”, but the present invention is not limited to this.
In the above-described embodiment, the shape value is one preset order component or the sum of two or more preset order components, but the present invention is not limited to this.

In the above-described embodiment, the first shape value and the second shape value are the same, but the present invention is not limited to this.
The present invention is not limited to the above-described embodiment, and the first embodiment and the second embodiment may be combined. That is, when the rolling condition is corrected using the second shape value, that fact may be notified.

  Further, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims.

DESCRIPTION OF SYMBOLS 1 ... Metal foil manufacturing equipment 10 ... Rolling mill 10C ... Control part 20 ... Winding machine 30 ... Unwinding machine 40 ... 1st measuring device 50 ... 2nd measuring device

Claims (15)

In metal foil manufacturing equipment,
A rolling mill that rolls metal according to rolling conditions to form a metal foil;
A first measuring device provided on the exit side of the rolling mill, wherein the first measuring device measures strain at each site in the width direction of the metal foil;
When the first shape value calculated based on the measurement value of the first measuring instrument becomes a predetermined condition set in advance, the first shape value is used to correct the rolling condition. Correction part,
A winder for winding the metal foil that has been measured by the first measuring device into a coil;
And taken-out wound like a coil, unwinding the metal foil is measured ended by the first measuring instrument uncoiler by said winder,
A second measuring device for measuring strain at each site in the width direction of the metal foil rewound by the unwinding machine;
When the second shape value calculated based on the measurement value of the second measuring device becomes a predetermined condition set in advance, the second shape value is used to correct the rolling condition. A metal foil manufacturing facility comprising a correction unit. In metal foil manufacturing equipment,
A rolling mill that rolls metal according to rolling conditions to form a metal foil;
A first measuring device provided on the exit side of the rolling mill, wherein the first measuring device measures strain at each site in the width direction of the metal foil;
When the first shape value calculated based on the measurement value of the first measuring instrument becomes a predetermined condition set in advance, the first shape value is used to correct the rolling condition. Correction part,
A winder for winding the metal foil that has been measured by the first measuring device into a coil;
And taken-out wound like a coil, unwinding the metal foil is measured ended by the first measuring instrument uncoiler by said winder,
A second measuring device for measuring strain at each site in the width direction of the metal foil rewound by the unwinding machine;
A notification for notifying that the second shape value has reached the predetermined condition when the second shape value calculated based on the measurement value of the second measuring device has a predetermined condition set in advance. And a metal foil manufacturing facility. The second shape value is a value indicating a shape failure in the width direction of the metal foil, and is a value using a component value of a predetermined order extracted from the measurement value,
Furthermore, the second correction unit sets one order component set in advance, or the sum of two or more order components set in advance as the second shape value, and the second shape value becomes the predetermined condition. the metal foil Plant according to claim 1, characterized in that to correct the rolling conditions when. The first shape value is a value indicating a shape failure in the width direction of the metal foil, and is a value using a component value of a predetermined order extracted from the measurement value,
The said 1st shape value and the said 2nd shape value are shape values comprised by the same order component, The metal foil manufacturing equipment of Claim 3 characterized by the above-mentioned. A rolling mill that rolls metal according to rolling conditions to form a metal foil;
A first measuring device provided on the exit side of the rolling mill, wherein the first measuring device measures strain at each site in the width direction of the metal foil;
A winder for winding the metal foil that has been measured by the first measuring device into a coil;
And taken-out wound like a coil, unwinding the metal foil is measured ended by the first measuring instrument uncoiler by said winder,
A second measuring device for measuring strain at each site in the width direction of the metal foil rewound by the unwinding machine;
A shape accuracy management method used in a metal foil manufacturing facility comprising:
When the first shape value calculated based on the measurement value of the first measuring instrument becomes a predetermined condition set in advance, the first shape value is used to correct the rolling condition. Correction process;
When the second shape value calculated based on the measurement value of the second measuring device becomes a predetermined condition set in advance, the second shape value is used to correct the rolling condition. A shape accuracy management method comprising: a correction step. The second shape value is a value indicating a shape failure in the width direction of the metal foil, and is a value using a component value of a predetermined order extracted from the measurement value,
Further, in the second correction step, a predetermined one order component or a sum of two or more order components set in advance is used as the second shape value, and the second shape value becomes the predetermined condition. 6. The shape accuracy management method according to claim 5, wherein the rolling condition is sometimes corrected. The first shape value is a value indicating a shape failure in the width direction of the metal foil, and is a value using a component value of a predetermined order extracted from the measurement value,
The shape accuracy management method according to claim 6, wherein the first shape value and the second shape value are shape values configured by the same order component. A rolling mill that rolls metal according to rolling conditions to form a metal foil;
A first measuring device provided on the exit side of the rolling mill, wherein the first measuring device measures strain at each site in the width direction of the metal foil;
A winder for winding the metal foil that has been measured by the first measuring device into a coil;
And taken-out wound like a coil, unwinding the metal foil is measured ended by the first measuring instrument uncoiler by said winder,
A second measuring device for measuring strain at each site in the width direction of the metal foil rewound by the unwinding machine;
A metal foil manufacturing control device used in a metal foil manufacturing facility comprising:
When the first shape value calculated based on the measurement value of the first measuring instrument becomes a predetermined condition set in advance, the first shape value is used to correct the rolling condition. Correction part,
When the second shape value calculated based on the measurement value of the second measuring device becomes a predetermined condition set in advance, the second shape value is used to correct the rolling condition. A control device for manufacturing metal foil, comprising: a correction unit. A rolling mill that rolls metal according to rolling conditions to form a metal foil;
A first measuring device provided on the exit side of the rolling mill, wherein the first measuring device measures strain at each site in the width direction of the metal foil;
A winder for winding the metal foil that has been measured by the first measuring device into a coil;
And taken-out wound like a coil, unwinding the metal foil is measured ended by the first measuring instrument uncoiler by said winder,
A second measuring device for measuring strain at each site in the width direction of the metal foil rewound by the unwinding machine;
A metal foil manufacturing control device used in a metal foil manufacturing facility comprising:
A correction unit that corrects the rolling condition using the first shape value when the first shape value calculated based on the measurement value of the first measuring device becomes a predetermined condition set in advance. When,
A notification for notifying that the second shape value has reached the predetermined condition when the second shape value calculated based on the measurement value of the second measuring device has a predetermined condition set in advance. And a metal foil manufacturing control device. The second shape value is a value indicating a shape failure in the width direction of the metal foil, and is a value using a component value of a predetermined order extracted from the measurement value,
Furthermore, the second correction unit sets one order component set in advance, or the sum of two or more order components set in advance as the second shape value, and the second shape value becomes the predetermined condition. The control apparatus for manufacturing metal foil according to claim 8 or 9, wherein the rolling conditions are sometimes corrected. The first shape value is a value indicating a shape failure in the width direction of the metal foil, and is a value using a component value of a predetermined order extracted from the measurement value,
The metal foil manufacturing control device according to claim 10, wherein the first shape value and the second shape value are shape values configured by the same order component. A rolling mill that rolls metal according to rolling conditions to form a metal foil;
A first measuring device provided on the exit side of the rolling mill, wherein the first measuring device measures strain at each site in the width direction of the metal foil;
A winder for winding the metal foil that has been measured by the first measuring device into a coil;
And taken-out wound like a coil, unwinding the metal foil is measured ended by the first measuring instrument uncoiler by said winder,
A control program for a metal foil manufacturing computer used in a metal foil manufacturing facility comprising a second measuring device that measures strain at each site in the width direction of the metal foil that has been rewound by the unwinding machine,
In the metal foil manufacturing computer,
When the first shape value calculated based on the measurement value of the first measuring instrument becomes a predetermined condition set in advance, the first shape value is used to correct the rolling condition. When the second shape value calculated based on the correction function and the measurement value of the second measuring instrument becomes a predetermined condition set in advance, the rolling condition is determined using the second shape value. A control program for manufacturing a metal foil, characterized by realizing a second correction function to be corrected. A rolling mill that rolls metal according to rolling conditions to form a metal foil;
A first measuring device provided on the exit side of the rolling mill, wherein the first measuring device measures strain at each site in the width direction of the metal foil;
A winder for winding the metal foil that has been measured by the first measuring device into a coil;
And taken-out wound like a coil, unwinding the metal foil is measured ended by the first measuring instrument uncoiler by said winder,
A control program for a metal foil manufacturing computer used in a metal foil manufacturing facility comprising a second measuring device that measures strain at each site in the width direction of the metal foil that has been rewound by the unwinding machine,
In the metal foil manufacturing computer,
When the first shape value calculated based on the measurement value of the first measuring instrument becomes a predetermined condition set in advance, the first shape value is used to correct the rolling condition. When the second shape value calculated based on the correction function and the measurement value of the second measuring device becomes a predetermined condition set in advance, the second shape value becomes the predetermined condition. A control program for manufacturing a metal foil, characterized in that a notification function for notifying is provided. The second shape value is a value indicating a shape failure in the width direction of the metal foil, and is a value using a component value of a predetermined order extracted from the measurement value,
Further, in the second correction function, a predetermined one order component or a sum of two or more order components set in advance is set as the second shape value, and the second shape value becomes the predetermined condition. the metal foil for producing a control program according to claim 1 2, characterized in that to correct the rolling conditions when. The first shape value is a value indicating a shape failure in the width direction of the metal foil, and is a value using a component value of a predetermined order extracted from the measurement value,
The said 1st shape value and the said 2nd shape value are shape values comprised by the same order component, The control program for metal foil manufacture of Claim 14 characterized by the above-mentioned.

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