WO2023182440A1 - Procédé de mesure d'épaisseur et dispositif de mesure d'épaisseur - Google Patents

Procédé de mesure d'épaisseur et dispositif de mesure d'épaisseur Download PDF

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Publication number
WO2023182440A1
WO2023182440A1 PCT/JP2023/011576 JP2023011576W WO2023182440A1 WO 2023182440 A1 WO2023182440 A1 WO 2023182440A1 JP 2023011576 W JP2023011576 W JP 2023011576W WO 2023182440 A1 WO2023182440 A1 WO 2023182440A1
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WO
WIPO (PCT)
Prior art keywords
sheet material
thickness
measuring
measuring means
actuator
Prior art date
Application number
PCT/JP2023/011576
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English (en)
Japanese (ja)
Inventor
成康 町田
Original Assignee
株式会社都ローラー工業
成康 町田
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 株式会社都ローラー工業, 成康 町田 filed Critical 株式会社都ローラー工業
Publication of WO2023182440A1 publication Critical patent/WO2023182440A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness

Definitions

  • the present invention relates to a thickness measuring method for measuring the thickness of a resin film such as an optical film, various metal foils (hereinafter collectively referred to as "sheet materials"), or a coating film on the surface of a sheet material.
  • This invention relates to a measuring device.
  • Resin films such as PET film and TAC film, and metal foils such as copper foil and aluminum foil are used for battery collector plates and fuel cell electrodes installed in electronic devices such as smartphones and LCD TVs, and hybrid vehicles. is used.
  • the conventional measurement method estimates the thickness of the sheet material from the measured values at zigzag measurement points as shown in FIG. It could not be measured directly without extrapolation.
  • the present invention has been made in view of the above circumstances, and the problem to be solved is to estimate the thickness of the sheet material or the coating film on the surface of the sheet material in a direction perpendicular or substantially perpendicular to the conveyance direction of the sheet material. It is an object of the present invention to provide a thickness measuring method and a thickness measuring device that can directly measure thickness without relying on the thickness.
  • the thickness measuring method of the present invention is a method for measuring the thickness of a sheet material or a coating film on the surface of a sheet material, in which the measuring means for measuring the thickness of the sheet material or the coating film on the surface of the sheet material is In this method, the thickness of the sheet material or the coating film on the surface of the sheet material is measured by the measuring means while moving the sheet material in the same direction as the material transportation direction at the same speed or substantially the same speed as the transportation speed of the sheet material.
  • the thickness measuring device of the present invention is a device for measuring the thickness of a sheet material or a coating film on the surface of a sheet material, and includes a measuring means and a measuring means that moves at a speed equal to the conveying speed of the sheet material in the conveying direction of the sheet material. Alternatively, it is equipped with a first actuator that moves at approximately constant speed.
  • the thickness of the sheet material or the coating film on the surface of the sheet material is measured.
  • the thickness of the sheet material in a direction perpendicular or substantially perpendicular to the conveying direction can be directly measured without estimation.
  • FIG. 1 is a schematic diagram showing an example of a sheet material manufacturing device.
  • 2 is a side view of the sheet material manufacturing apparatus shown in FIG. 1.
  • FIG. (a) is a side view which shows an example of T-die
  • (b) is a front view which shows an example of T-die.
  • FIG. 1 is an exploded schematic diagram showing an example of a thickness measuring device.
  • (a) is an explanatory diagram of the operation of the thickness measuring device in the present application
  • (b) is an explanatory diagram of the measurement locus in the thickness measuring device in the present application.
  • FIG. 2 is a schematic diagram showing an example of a coater.
  • FIG. 6 is a schematic diagram showing another example of the coater.
  • the sheet material manufacturing apparatus shown in FIGS. 1 and 2 is a sheet material manufacturing apparatus that manufactures a resin film (sheet material S). 1 and 2, 11 is an extruder, 12 is a T-die, 13 is a cooling roll, 14 is a casting roll, 15 is a conveyance roll, 16 is a thickness measuring device, 17 is a translation unit, and 18 is a winding device. It is.
  • the configuration shown here is the main configuration of the sheet material manufacturing apparatus, and the sheet material manufacturing apparatus also includes other configurations.
  • the extruder 11 is a device that melts resin pellets and extrudes them to the T-die 12, and is mainly equipped with a melting section that melts the resin pellets and a hopper that guides the resin pellets to the melting section.
  • the T-die 12 spreads the molten resin extruded from the extruder 11 in the width direction and discharges it.
  • the T-die 12 shown in FIGS. 3(a) and 3(b) includes a resin inflow path 12a into which the molten resin that has flowed from the extruder 11 flows, and a manifold that disperses the molten resin that has flowed in from the resin inflow path 12a in the width direction. 12b, and a lip 12c for discharging the molten resin that has flowed in from the manifold 12b.
  • the molten resin in the T-die 12 is kept in a molten state by a heater (not shown).
  • the lip 12c is composed of opposing parts that are spaced apart from each other.
  • Each opposing part includes a plurality of divided parts provided along the longitudinal direction.
  • Each divided part is provided with an interval adjuster 12d for adjusting the interval between the opposing divided parts.
  • the spacing adjustment tool 12d is operated by an actuator (not shown), and the thickness of the sheet material S can be adjusted by controlling the actuator to adjust the spacing (lip spacing) between both opposing parts of the spacing adjustment tool 12d. It is set as.
  • the configuration of the T-die 12 shown here is an example, and the T-die 12 may have a configuration other than this.
  • the cooling roll 13 is a roll that rapidly cools and solidifies the molten resin supplied from the T-die 12
  • the casting roll 14 is a roll that forms the sheet material S into a sheet while uniformizing the temperature
  • the conveyance roll 15 is a roll that forms the sheet material S into a sheet shape.
  • the conveying roll and winding device 18 is a device that winds up the formed sheet material S into a roll shape. Existing cooling rolls 13, casting rolls 14, conveying rolls 15, and winding devices 18 can be used.
  • the thickness measuring device 16 is a device that measures the thickness of the sheet material S in the manufacturing process before (upstream) the winding device 18.
  • the thickness measuring device 16 shown in FIG. 4 includes a cross-direction actuator 16b provided on the upper surface side of the base 16a, a transport direction actuator 16c provided on the cross-direction actuator 16b, and a transport direction actuator 16c provided on the transport direction actuator 16c. It is equipped with measuring means 16d to 16h.
  • the base 16a is a flat platform on which the transport direction actuator 16c, the cross direction actuator 16b, etc. are mounted.
  • the cross-direction actuator 16b is attached to the upper surface of the base 16a on the rear side in the conveyance direction along a direction intersecting the conveyance direction of the sheet material S.
  • the cross-direction actuator 16b moves the conveyance direction actuator 16c in a direction intersecting the conveyance direction.
  • An existing linear guide or the like can be used for the cross-direction actuator 16b.
  • the cross-direction actuator 16b of this embodiment includes a cross-direction guide 16i provided in a direction crossing the conveyance direction, and a cross-direction slider 16j that moves along the cross-direction guide 16i.
  • a conveyance direction actuator 16c (specifically, a conveyance direction guide 16k to be described later) is attached to the cross direction slider 16j.
  • the cross-direction slider 16j is configured to be able to reciprocate along the cross-direction guide 16i by a drive source (not shown).
  • the transport direction actuator 16c moves the measuring means 16d to 16h in the transport direction.
  • An existing linear guide or the like can be used as the transport direction actuator 16c.
  • the conveyance direction actuator 16c of this embodiment includes a conveyance direction guide 16k provided along the conveyance direction, and a conveyance direction slider 16m that moves along the conveyance direction guide 16k.
  • a mounting table 16n for mounting the measuring means 16d to 16h is attached to the transport direction slider 16m.
  • the measuring means 16d to 16h measure the thickness of the sheet material S.
  • a sensor using optical interference such as a spectral interference film thickness meter
  • an infrared sensor such as an infrared film thickness measurement sensor, or an existing sensor such as a displacement sensor can be used.
  • a sensor using ⁇ -rays, X-rays, etc. can also be used.
  • the case where five measuring means 16d to 16h are used is taken as an example, but the number of measuring means 16d to 16h may be more or less than five.
  • the five measuring means 16d to 16h of this embodiment are provided at intervals in the longitudinal direction on the upper surface of the mounting table 16n which is long in the cross direction.
  • the installation interval of the measuring means 16d to 16h it can be set to, for example, about 100 mm, 150 mm, 200 mm, 250 mm, or 300 mm.
  • the measuring means 16d to 16h can be installed at wider or narrower intervals.
  • the first measuring means 16d measures the first region S1 of the sheet material S.
  • the thickness of the second region S2 of the sheet material S is determined by the second measuring means 16e, and the thickness of the third region S3 of the sheet material S is determined by the third measuring means 16f.
  • the thickness of the fourth region S4 of the sheet material S is measured by 16g, and the thickness of the fifth region S5 of the sheet material S is measured by the fifth measuring means 16h.
  • the thickness measuring device 16 can be established by itself, but in this embodiment, a lower cross-direction actuator 16p, a lower transport direction actuator 16r, and a counterweight 16s are provided as a counter unit on the lower surface side of the base 16a. There is.
  • the counter unit is a mechanism for canceling or attenuating vibrations caused by the operations of the cross direction actuator 16b, the transport direction actuator 16c, and the measuring means 16d to 16h.
  • the lower cross-direction actuator 16p corresponds to the cross-direction actuator 16b provided on the upper surface side of the base 16a, and moves along a lower cross-direction guide 16t similar to the cross-direction actuator 16b and a lower cross-direction guide 16t.
  • a slider equipped with a lower cross-direction slider 16u is used.
  • the lower cross-direction actuator 16p is provided in an orientation and position that is symmetrical with respect to the cross-direction actuator 16b.
  • the lower conveyance direction actuator 16r corresponds to the conveyance direction actuator 16c provided on the upper surface side of the base 16a, and moves along the same lower conveyance direction guide 16v and the lower conveyance direction guide 16v as the conveyance direction actuator 16c.
  • a device equipped with a lower conveyance direction slider 16w is used.
  • the lower transport direction actuator 16r is provided in an orientation and position that is symmetrical with respect to the transport direction actuator 16c.
  • the lower cross-direction actuator 16p and the lower conveyance direction actuator 16r are arranged point-symmetrically with the cross-direction actuator 16b and the conveyance direction actuator 16c, but depending on the performance of the actuators, the asymmetrical direction and It can also be provided at any position.
  • the counterweight 16s is for balancing the measuring means 16d to 16h and the mounting table 16n provided on the upper surface side of the base 16a, and is a weight having the same weight as the measuring means 16d to 16h and the mounting table 16n. is used.
  • the thickness measuring device 16 of this embodiment moves the measuring means 16d to 16h in a direction intersecting the conveying direction using the cross-direction actuator 16b, and moves the measuring means 16d to 16h using the conveying direction actuator 16c.
  • the thickness of the sheet material S is measured while moving the sheets 16d to 16h in the conveying direction.
  • the measuring means 16d to 16h can also be configured to move only in either the transport direction or a direction intersecting the transport direction.
  • the conveying speed of the measuring means 16d to 16h in the conveying direction is equal to or approximately equal to the conveying speed of the sheet material S in the conveying direction.
  • the conveying speed of the measuring means 16d to 16h in the conveying direction is set to be the same speed or approximately the same speed as the conveying speed of the sheet material S, the measurement trajectory when measuring while moving the measuring means 16d to 16h in the cross direction is , the locus is perpendicular or substantially perpendicular to the sheet material S as shown in FIG.
  • the parallel movement unit 17 is a device that adjusts the winding thickness of the sheet material S by oscillating (swinging) the formed sheet material S before the winding device 18.
  • the parallel movement unit 17 shown in FIG. 1 includes a rotating body 17a, a frame 17b attached to the rotating body 17a, and two guide rolls 17c and 17d held by the frame 17b with an interval in the vertical direction. ing.
  • a drive device including a rotating body 17a (turntable) that can be horizontally rotated by a motor is used as the rotating body 17a.
  • the rotating body 17a is rotated in forward and reverse directions by a motor.
  • the frame 17b holds the guide rolls 17c and 17d, and is attached to the rotating body 17a.
  • the frame 17b shown in FIG. 1 is an upwardly U-shaped member having a cross member fixed to the rotating body 17a and vertical members rising from both longitudinal ends of the cross member.
  • Two guide rolls 17c and 17d are provided at intervals in the vertical direction.
  • the guide rolls 17c and 17d are rolls that guide the sheet material S toward the winding device 18.
  • rolls that can guide the sheet material S in a non-contact state specifically, cylindrical rolls having a plurality of air ejection holes on the outer peripheral surface, are used.
  • an air supply pipe is connected to one end side of both guide rolls 17c and 17d, and air can be supplied into the guide rolls 17c and 17d from an air supply device (not shown) to which the air supply pipe is connected. It's like this.
  • the guide rolls 17c and 17d shown here are just an example, and other rolls such as existing rolls that guide the sheet material S in a contacting state may also be used.
  • the rotating body 17a swings in forward and reverse directions while conveying the sheet material S, and when the sheet material S is wound up by the winding device 18, the thickness of the sheet material S is It is designed to minimize the occurrence of gauge bands (convex bands that appear when wound) caused by unevenness.
  • the T-die 12 and the parallel movement unit 17 are controlled based on the measurement results by the measurement means 16d to 16h.
  • the thickness measuring device 16 and the T-die 12 described here function as one device (lip interval control device), and the thickness measuring device 16 and the parallel movement unit 17 function as one device (parallel movement device).
  • the gap between the lips 12c of the T-die 12 in the portion corresponding to the third region S3 is narrowed, and the gap in the portion of the lip 12c corresponding to the third region S3 of the sheet material S discharged from the T-die 12 thereafter is narrowed.
  • the thickness can be made thinner than before.
  • the gap between the lips 12c of the T-die 12 in the portion corresponding to the third region S3. can be made wider so that the thickness of the portion corresponding to the third region S3 of the sheet material S discharged from the T-die 12 thereafter becomes thicker than before.
  • the parallel movement unit 17 when controlling the parallel movement unit 17 based on the measurement results by the measuring means 16d to 16h, for example, when the measuring means 16d detects thickness unevenness of the sheet material S, the rotation of the rotating body 17a ( Specifically, by changing the rotation speed, rotation direction, rotation angle, etc., it is possible to control the winding thickness to be uniform (to prevent gauge bands from occurring).
  • the sheet material S has uneven thickness, a gauge band will occur when it is wound up by the winding device 18, and a larger load will be applied to that part than other parts, which may cause damage to the sheet material S. be. Since damage to the sheet material S is a cause of product defects, it is desirable that the sheet material S has as little unevenness in thickness as possible.
  • the sheet material manufacturing apparatus of this embodiment can measure the thickness of the sheet material S with high precision, the lip 12c of the T-die 12 and the parallel movement unit 17 can be controlled with high precision, and as a result, the thickness of the sheet material S can be measured with high precision. A sheet material S with less unevenness can be manufactured.
  • the supplied resin pellets are heated and melted by the extruder 11 and supplied to the T-die 12, and the supplied molten resin is spread in the width direction by the T-die 12 and discharged. .
  • the molten resin discharged from the T-die 12 is cooled by a cooling roll 13 and formed into a sheet, and after its temperature is adjusted by a casting roll 14, it is conveyed forward by a conveying roll 15 while being stretched in the vertical and horizontal directions. It is wound up by the winding device 18.
  • the thickness of the sheet material S is measured by the thickness measuring device 16 during the manufacturing process of the sheet material S. Specifically, as shown in FIG. 5(b), the thickness of the first region S1 of the sheet material S is determined by the first measuring means 16d, and the thickness of the second region S2 of the sheet material S is determined by the second measuring means 16e. The thickness of the third region S3 of the sheet material S is determined by the third measuring means 16f, and the thickness of the fourth region S4 of the sheet material S is determined by the fourth measuring means 16g. At 16h, the thickness of the fifth region S5 of the sheet material S is measured.
  • the lip 12c of the T-die 12 and the translation unit 17 are controlled based on the measurement results by the thickness measuring device 16.
  • the thickness of the sheet material S is adjusted in the manufacturing process of the sheet material S, and the parallel movement unit 17, more specifically, is adjusted based on the measurement results.
  • gauge bands are less likely to occur.
  • the coater shown in FIG. 6 is a device that forms a coating film on the surface of a resin film (sheet material S), and is equipped with the thickness measuring device 30 of the present application.
  • 21 is a feeding device
  • 22 is a winding device
  • 23 is a conveyance roll
  • 24 is an impression roll
  • 25 is a container for coating liquid
  • 26 is a gravure roll
  • 27 is a blade
  • 28 is a touch roll
  • 29 is a dryer.
  • a furnace, 30 is a thickness measuring device
  • 31 is a translation unit.
  • the feeding device 21 is a device that feeds out the sheet material S wound into a roll
  • the winding device is a device that winds up the sheet material S.
  • Existing devices can be used for the feeding device 21 and the winding device 22.
  • a plurality of transport rolls 23 for transporting the sheet material S are arranged between the feeding device 21 and the winding device 22.
  • a coating means including an impression roll 24, a coating liquid container 25, a gravure roll 26, and a blade 27 is provided ahead of the feeding device 21.
  • the coating means is a means for applying a coating liquid to the surface of the sheet material S. Existing ones can be used for the impression roll 24, the coating liquid container 25, the gravure roll 26, and the blade 27.
  • the coating means shown here is an example, and the coating means may have a structure other than this.
  • an impression roll 24 and a slot die 32 can be used as the coating means.
  • An existing slot die 32 can be used. Note that the other configurations in FIG. 7 are similar to those of the coater in FIG. 6, so the same configurations are denoted by the same reference numerals, and detailed description thereof will be omitted.
  • a drying oven 29 for drying the coating liquid applied to the sheet material S to form a coating film is provided ahead of the coating means.
  • An existing drying oven 29 can be used.
  • a thickness measuring device 30 for measuring the thickness of the coating film on the surface of the sheet material S is provided in front of the drying oven 29, and a parallel movement device for swinging the sheet material S is provided in front of the thickness measuring device 30.
  • a unit 31 is provided.
  • the configurations of the thickness measurement device 30 and the translation unit 31 are similar to those of the thickness measurement device 16 and the translation unit 17 of the first embodiment, respectively.
  • the thickness measuring device 30 of this embodiment is upside down from the thickness measuring device 16 of the first embodiment so that it can measure the thickness of the coating film of the sheet material S passing under the thickness measuring device 30. ing.
  • the coating means of this embodiment is controlled by a control means (not shown). Specifically, the coating means and the parallel movement unit 31 are controlled based on the actual value obtained by measurement with the thickness measuring device 30. For example, if the thickness (actual value) of the coating film measured by the thickness measuring device 30 is uneven, the angle and interval of the impression roll 24 and the gravure roll 26, the pressing force of the blade 27, etc. are controlled.
  • the parallel movement unit 31 of this embodiment is also controlled by a control means (not shown). Specifically, the rotation (specifically, the rotation speed, rotation direction, rotation angle, etc.) of the rotating body of the parallel movement unit 31 is changed based on the actual measurement value obtained by measurement with the thickness measurement device 30, The winding thickness is controlled to be uniform (so that no gauge band occurs).
  • the sheet material S coated with the coating liquid is transported forward and passes through a drying oven 29.
  • the coating liquid applied to the surface of the sheet material S is dried in the drying oven 29 to form a coating film.
  • the sheet material S that has passed through the drying oven 29 passes below the thickness measuring device 30, and the thickness of the coating film on the surface of the sheet material S is measured by the thickness measuring device 30.
  • the thickness measuring device 30 measures the coating film on the surface of the sheet material S in a direction perpendicular or approximately perpendicular to the conveyance direction of the sheet material S, or in a direction perpendicular to or approximately perpendicular to the conveying direction of the sheet material S, or in a direction perpendicular to or approximately perpendicular to the conveyance direction of the sheet material S, or in a direction perpendicular to or approximately perpendicular to the conveyance direction of the sheet material S, or Specifically, the thickness in a direction parallel or substantially parallel to the longitudinal direction of the impression roll 24 or gravure roll 26 constituting the coating means is measured.
  • the thickness measuring device 30 (specifically, the measuring means of the thickness measuring device 30) is operated at a speed equal to the conveying speed of the sheet material S in the same direction as the conveying direction of the sheet material S. It is preferable to perform this while moving at high speed or approximately constant speed. More preferably, the thickness of the coating film is measured while moving the measuring means of the thickness measuring device 30 in a direction perpendicular or substantially perpendicular to the conveyance direction of the sheet material S.
  • both or one of the coating means and the parallel movement unit 31 is controlled based on the measured value.
  • the coating means is controlled, the thickness of the subsequently formed coating film is smoothed and the occurrence of gauge bands is suppressed.
  • the parallel movement unit 31 is controlled, the occurrence of uneven winding in the winding device 22 is reduced, and the occurrence of gauge bands is suppressed.
  • the coater of this embodiment can be expected to have effects other than suppressing the occurrence of gauge bands.
  • variations in the film thickness of the applied coating liquid lead to a decrease in the quality of the manufactured sheet material.
  • a coating liquid having a light transmitting function is applied to the surface of the sheet material in order to improve the light transmittance of the sheet material.
  • the light transmittance may be partially inhibited.
  • the coating method can be controlled with higher precision than conventional coaters, it can be expected to have the effect that variations in coating liquid film thickness are less likely to occur.
  • the coater equipped with the thickness measuring device 30 of the present application can measure the film thickness of the coating liquid on the surface of the sheet material S while conveying it, in other words, can measure the film thickness of the coating liquid in-line. A sufficient effect can be expected even in cases where in-line control of coating liquid film thickness is desired.
  • a counter unit is provided on the back side of the base 16a to cancel or attenuate vibrations generated by the operations of the cross-direction actuator 16b, the transport direction actuator 16c, and the measuring means 16d to 16h.
  • the counter unit may be provided as needed, and can be omitted if unnecessary. The same applies to the second embodiment.
  • the thickness measuring device 16 is placed below the sheet material S (on the back side), and the thickness of the sheet material S is measured from the bottom side. It is also possible to arrange it on the upper side (front side) of the sheet material S and to measure the thickness of the sheet material S from the upper side. Also in the case of the second embodiment, the measurement direction can be set depending on the position where the coating film is formed.
  • the measuring means 16d to 16h of the thickness measuring device 16 measure the sheet material S from one side. It is also possible to use one that includes a device (for example, a light emitting section) placed on the upper side and a device (for example, a light receiving section) placed on the bottom side of the sheet material S. The same applies to the second embodiment.
  • the thickness of the sheet material S is measured while moving the measuring means 16d to 16h in a direction intersecting the conveyance direction of the sheet material S.
  • the measuring means does not need to be moved in the direction intersecting the conveyance direction of the sheet material S. The same applies to the second embodiment.
  • the entire widthwise thickness of the sheet material S can be measured without moving the measuring means. Even when the width can be measured, the measuring means does not need to be moved in a direction intersecting the conveying direction of the sheet material S. The same applies to the second embodiment.
  • the sheet material S is a resin film
  • the sheet material S also includes materials other than resin films such as metal foil.
  • the T-die 12 is not used, so the measurement result of the thickness of the metal foil is not used to control the T-die 12.
  • the parallel movement unit 17, more specifically, the rotation speed, rotation direction, rotation angle, etc. of the rotating body 17a may be controlled based on the measurement result of the thickness of the metal foil. I can do it.
  • the second embodiment the same applies to the second embodiment.
  • each of the above embodiments are merely examples, and the present invention is not limited to the configurations of these embodiments.
  • the present invention can be modified, such as omitting, replacing, adding, etc., to the configuration as long as the intended purpose can be achieved.
  • the thickness measuring device 16 of the present application can be used by being mounted on various sheet material manufacturing devices, and the measurement results with the thickness measuring device 16 can be used to measure the lip distance of the T-die 12, the parallel movement unit 17, and the coating means. Can be used for control.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

L'invention concerne un procédé de mesure d'épaisseur et un dispositif de mesure d'épaisseur grâce auxquels il est possible de mesurer directement l'épaisseur d'un élément de type feuille ou d'un film de revêtement sur la surface d'un élément de type feuille dans une direction orthogonale ou sensiblement orthogonale à une direction de transport de l'élément de type feuille, sans reposer sur une estimation. Ledit procédé de mesure d'épaisseur consiste à mesurer l'épaisseur d'un élément de type feuille ou d'un film de revêtement sur la surface d'un élément de type feuille à l'aide d'un moyen de mesure tout en déplaçant le moyen de mesure à une vitesse équivalente ou sensiblement équivalente à la vitesse de transport de l'élément de type feuille dans la même direction que la direction de transport de l'élément de type feuille. Ledit dispositif de mesure d'épaisseur comprend un moyen de mesure, et un premier actionneur permettant de déplacer le moyen de mesure à une vitesse équivalente ou sensiblement équivalente à la vitesse de transport d'un élément de type feuille dans la direction de transport de l'élément de type feuille.
PCT/JP2023/011576 2022-03-24 2023-03-23 Procédé de mesure d'épaisseur et dispositif de mesure d'épaisseur WO2023182440A1 (fr)

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JP2022-048626 2022-03-24
JP2022048626A JP7252584B1 (ja) 2022-03-24 2022-03-24 厚さ測定方法及び厚さ測定装置

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006090892A (ja) * 2004-09-24 2006-04-06 Futec Inc Ｘ線透過法を用いた塗工シートの測定装置および測定方法
JP2021036223A (ja) * 2019-08-23 2021-03-04 東レエンジニアリング株式会社 厚さ測定装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006090892A (ja) * 2004-09-24 2006-04-06 Futec Inc Ｘ線透過法を用いた塗工シートの測定装置および測定方法
JP2021036223A (ja) * 2019-08-23 2021-03-04 東レエンジニアリング株式会社 厚さ測定装置

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JP2023143795A (ja) 2023-10-06
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