JP7055077B2 - Pattern transfer device and control method of pattern transfer device - Google Patents

Description

An embodiment of the present invention relates to a pattern transfer device and a control method for the pattern transfer device.

Conventionally, a photocurable resin is applied to the first surface of a substrate to be conveyed by a coating mechanism, and a pattern provided on the outer peripheral surface of the transfer roll is transferred to the photocurable resin by the transfer roll, and the pattern is transferred. There is known a pattern transfer device that cures the photocurable resin by irradiating the resulting photocurable resin with light by a light irradiation device (for example, Patent Document 1). This type of transfer device is provided with a pressing roll that presses the substrate toward the transfer roll and a release roll that peels the coated substrate from the cured photocurable resin from the transfer roll. There is.

Japanese Unexamined Patent Publication No. 2013-35243

In the prior art, the base material may be stretched by the heat of polymerization of the photocurable resin or the heat of light of the light irradiation device, so that the portion of the base material pressed by the transfer roll may be loosened. Further, such elongation of the base material may occur when the outer peripheral surface of the transfer roll is distorted or the outer peripheral surface has a high degree of cylindricity. When slack moves to or occurs in the part of the base material where the coated photocurable resin is irradiated with light, the curing of the photocurable resin is hindered and the accuracy of pattern transfer is reduced. There is a risk of

An object to be solved by the present invention is to obtain a pattern transfer device and a control method for the pattern transfer device, which can suppress a decrease in the accuracy of pattern transfer.

The pattern transfer device of the embodiment is conveyed by a transport mechanism for transporting a substrate having a first surface and a second surface opposite to the first surface in the longitudinal direction of the substrate, and the transport mechanism. It has a coating mechanism for applying a photocurable resin to the first surface of the base material, and an outer peripheral surface provided with a pattern, and the light is in contact with the outer peripheral surface of the photocurable resin. A transfer roll on which the substrate coated with the curable resin is wound and rotated to transfer the pattern to the photocurable resin, and the first of the substrate coated with the photocurable resin. A pressing roll that presses two surfaces toward the transfer roll, a light irradiation device that cures the photocurable resin by irradiating the photocurable resin to which the pattern is transferred, and the light irradiation device. A peeling roll that peels the base material from which the photocurable resin has been cured from the transfer roll, a driving source for rotating the peeling roll, and slackening of a portion of the base material that is pressed by the transfer roll. When the detection unit detects the slack in a state where there is a gap between the detection unit for detecting the above and the transfer roll and the pressing roll, the drive source is set so that the rotation speed of the release roll becomes high. It is equipped with a control unit for controlling.

FIG. 1 is a block diagram of a pattern transfer device according to an embodiment. FIG. 2 is a diagram showing a part of the transfer roll and the pressing roll of the embodiment, and is a diagram showing a first state in which a gap is provided between the transfer roll and the pressing roll. FIG. 3 is a diagram showing a part of the transfer roll and the pressing roll of the embodiment, and is a diagram showing a second state in which there is no gap between the transfer roll and the pressing roll. FIG. 4 is a block diagram of the pattern transfer device of the embodiment. FIG. 5 is a block diagram showing a functional configuration of the control device of the pattern transfer device of the embodiment. FIG. 6 is a configuration diagram of a transfer mechanism of the pattern transfer device of the embodiment, and is a diagram showing a state in which slack is generated in the strip-shaped film when the pressing roll is in the first state. FIG. 7 is a configuration diagram of a transfer mechanism of the pattern transfer device of the embodiment, and is a diagram showing a state in which slack is generated in the strip-shaped film when the pressing roll is in the second state. FIG. 8 is a configuration diagram of a transfer mechanism of the pattern transfer device of the embodiment, and is a diagram showing a state in which the slack is eliminated by moving the release roll from the state of FIG. 7. FIG. 9 is a flowchart showing a slack corresponding process executed by the control device of the pattern transfer device of the embodiment.

Hereinafter, exemplary embodiments of the present invention will be disclosed. The configurations of the embodiments shown below, as well as the actions and effects brought about by such configurations, are examples. In this specification, the ordinal number is used only for distinguishing parts and members, and does not indicate the order or priority.

FIG. 1 is a block diagram of the pattern transfer device 1. The object to be processed by the pattern transfer device 1 is a long strip-shaped film 100 having a substantially constant width. The strip-shaped film 100 has a front surface 100a and a back surface 100b on the opposite side of the front surface 100a. The strip film 100 is made of, for example, a synthetic resin material, but is not limited thereto. The strip film 100 may also be referred to as a web. The strip film 100 is an example of a base material, the front surface 100a is an example of the first surface, and the back surface 100b is an example of the second surface.

The pattern transfer device 1 treats the surface 100a at a predetermined position while continuously or intermittently transporting the strip-shaped film 100 in the longitudinal direction thereof, so that the surface 100a is uneven over the longitudinal direction. The resin layer 100c to which the shape is transferred is formed. Hereinafter, the resin layer 100c before the transfer of the uneven shape is also referred to as a coating layer 100ca, and the resin layer 100c after the transfer of the uneven shape is also referred to as a molding layer 100cc. The surface of the resin layer 100c opposite to the strip film 100 is the surface 100g of the resin layer 100c. The sheet 101 is composed of the strip film 100 and the resin layer 100c. The front surface 101a of the sheet 101 is composed of the front surface 100g of the resin layer 100c, and the back surface 101b of the sheet 101 is composed of the back surface 100b of the strip film 100. The front surface 100a may also be referred to as a treated surface, and the back surface 100b may also be referred to as a non-treated surface.

As shown in FIG. 1, the pattern transfer device 1 includes a feeding mechanism 10, a winding mechanism 20, a coating mechanism 30, a transfer mechanism 40, and a light irradiation device 50. The feeding mechanism 10 and the winding mechanism 20 constitute a transport mechanism for transporting the strip-shaped film 100 in the longitudinal direction of the strip-shaped film 100. The strip-shaped film 100 is conveyed between the feeding mechanism 10 and the winding mechanism 20 by the feeding mechanism 10 and the winding mechanism 20, and is processed by the coating mechanism 30, the transfer mechanism 40, and the light irradiation device 50. To. Therefore, the coating mechanism 30, the transfer mechanism 40, and the light irradiation device 50 can also be referred to as a processing mechanism.

The feeding mechanism 10 has a feeding shaft 11 and a feeding motor 12. An untreated strip-shaped film 100 is wound around the feeding shaft 11. The feeding motor 12 is a drive source for driving the feeding shaft 11. As the feeding motor 12 controlled by the control device 80 (FIG. 4) rotates the feeding shaft 11 around the central axis C1, the strip-shaped film 100 wound around the feeding shaft 11 moves forward in the transport direction of the strip-shaped film 100. It is fed out (to the right in FIG. 1). Hereinafter, the transport direction of the strip-shaped film 100 is also simply referred to as a transport direction.

The take-up mechanism 20 has a take-up shaft 21 and a take-up motor 22. The take-up shaft 21 has a cylindrical shape. The take-up motor 22 is a drive source for driving the take-up shaft 21. As the take-up motor 22 controlled by the control device 80 rotates the take-up shaft 21 around the central axis C2, the treated strip-shaped film 100, that is, the strip-shaped film 100 having the molding layer 100 kb on the surface 100a. Is wound around the take-up shaft 21. By controlling the feeding motor 12 and the take-up motor 22 by the control device 80, a predetermined tension is applied to the strip-shaped film 100, and the strip-shaped film 100 is conveyed at a predetermined speed.

The coating mechanism 30 is located between the feeding mechanism 10 and the transfer mechanism 40, and coats, for example, a coating layer 100ca having a substantially constant thickness on the surface 100a of the strip-shaped film 100. The coating layer 100ca is a photocurable synthetic resin material that is cured by irradiation with light such as ultraviolet rays. The coating mechanism 30 feeds the synthetic resin material onto the surface 100a of the strip film 100 by a liquid feed pump. The liquid feed pump is, for example, a metering pump. The coating layer 100ca is not exposed to light and is in a relatively flexible state when it is coated by the coating mechanism 30. The molded layer 100cc may also be referred to as a photocurable resin layer or a photosensitive resin. The coating layer 100ca, that is, the resin layer 100c is an example of a photocurable resin.

The transfer mechanism 40 includes a transfer roll 41, a pressing roll 42, a peeling roll 43, a transfer motor 44, and a peeling motor 45. The transfer roll 41, the pressing roll 42, and the peeling roll 43 each have a cylindrical shape and are arranged in parallel with each other. The transfer motor 44 is a drive source for rotating the transfer roll 41. The peeling motor 45 is a drive source for rotating the peeling roll 43. The transfer motor 44 and the peeling motor 45 are, for example, AC servomotors whose speed can be controlled.

The pressing roll 42 and the peeling roll 43 are arranged at intervals I1 and I2 from the transfer roll 41, respectively. The release roll 43 is located in front of the pressing roll 42 in the transport direction of the strip-shaped film 100. The strip-shaped film 100 is bridged between the feeding shaft 11 and the pressing roll 42 in a state where a required tension is applied, and is placed around the outer peripheral surface 41a of the transfer roll 41 between the pressing roll 42 and the release roll 43. Along with being wound, it is also laid between the release roll 43 and the take-up shaft 21 in a state where a required tension is applied. The pressing roll 42 and the peeling roll 43 each support the back surface 100b of the strip-shaped film 100. Along with the transportation of the strip-shaped film 100, the portion of the strip-shaped film 100 coated with the coating layer 100ca by the coating mechanism 30 approaches the pressing roll 42, moves along the outer periphery of the pressing roll 42, and is a transfer roll. It passes between the transfer roll 41 and the pressing roll 42, moves along the outer peripheral surface 41a of the transfer roll 41, passes between the transfer roll 41 and the peeling roll 43, moves along the outer periphery of the peeling roll 43, and moves along the outer peripheral surface of the peeling roll 43. It moves away from 43 and moves to the take-up shaft 21.

The transfer roll 41 is rotatably provided around the central axis C3 by the transfer motor 44 controlled by the control device 80. In the pattern transfer device 1, the control device 80 controls the transfer motor 44 so that the transfer roll 41 rotates in a predetermined rotational state such that the rotation speed is constant. Further, at this time, the control device 80 controls the feeding motor 12 and the winding motor 22 so that the load acting on the feeding motor 12 and the winding motor 22 is substantially constant according to the tension of the strip-shaped film 100. Further, the pressing roll 42 and the peeling roll 43 are each rotatably provided around the central axes C4 and C5 parallel to the central axis C3. The control device 80 does not normally drive the peeling motor 45. Therefore, in this case, the peeling roll 43 operates not as a driving roll rotated by the peeling motor 45 but as a driven roll that rotates with the movement of the strip-shaped film 100. In this case, the peripheral speed of the peeling roll 43 is the same as the peripheral speed of the transfer roll 41. The rotation direction of the peeling roll 43 is opposite to the rotation direction of the transfer roll 41. Further, the pressing roll 42 is not a driving roll rotated by a motor, but a driven roll that rotates with the movement of the strip-shaped film 100. Therefore, the peripheral speed of the pressing roll 42 is the same as that of the transfer roll 41. The rotation direction of the pressing roll 42 is opposite to the rotation direction of the transfer roll 41.

An uneven pattern 41b is provided on the outer peripheral surface 41a of the transfer roll 41. The strip-shaped film 100 having the resin layer 100c coated on the surface 100a is wound around the transfer roll 41 in a posture in which the resin layer 100c is in contact with the outer peripheral surface 41a between the pressing roll 42 and the peeling roll 43. Therefore, the outer peripheral surface 42a of the pressing roll 42 and the outer peripheral surface 43a of the peeling roll 43 are in contact with the back surface 100b of the strip film 100, that is, the back surface 101b of the sheet 101. The strip-shaped film 100 coated with the resin layer 100c is bridged between the release roll 43 and the take-up shaft 21 in a state where a required tension is applied. In this state, the pressing roll 42 presses the back surface 100b of the strip-shaped film 100 against the outer peripheral surface 41a of the transfer roll 41. As a result, the resin layer 100c is deformed following the pattern 41b of the outer peripheral surface 41a, and the pattern 41b is transferred to the resin layer 100c. That is, the resin layer 100c changes from the coating layer 100ca to the molding layer 100cc. Here, in the transfer of the pattern 41b, when the convex portion of the pattern 41b of the transfer roll 41 bites into the resin layer 100c and comes into contact with the surface 100a of the strip-shaped film 100, the convex portion of the pattern 41b on the surface 100a of the strip-shaped film 100 Since the portion in contact with the sheet 101 is not covered by the resin layer 100c, it constitutes a part of the surface 101a of the sheet 101.

Further, as described above, the strip-shaped film 100 is bridged between the release roll 43 and the take-up shaft 21 in a state where a required tension is applied, and is therefore pressed against the release roll 43. .. Therefore, the strip-shaped film 100 is separated from the transfer roll 41 and moves along the release roll 43 in the front of the transfer direction rather than between the transfer roll 41 and the release roll 43. That is, the peeling roll 43 peels the strip-shaped film 100 from which the molded layer 100 cc is cured from the transfer roll 41 by bending the transport direction of the strip-shaped film 100.

Further, the transfer mechanism 40 has a pressing roll moving mechanism 46 for moving the pressing roll 42 and a peeling roll moving mechanism 47 for moving the peeling roll 43. The peeling roll moving mechanism 47 is an example of the moving mechanism.

The pressing roll moving mechanism 46 has a motor 46a and a ball screw 46b. The pressing roll moving mechanism 46 can adjust the distance I1 between the pressing roll 42 and the transfer roll 41 by adjusting the position of the pressing roll 42. The pressing roll moving mechanism 46 converts the rotational motion of the motor 46a into a linear motion of the pressing roll 42 in the direction in which the interval I1 changes (left-right direction in FIG. 1) by the ball screw 46b. The motor 46a is a drive source for moving the transfer roll 41, and is, for example, an AC servomotor.

The peeling roll moving mechanism 47 has a motor 47a and a ball screw 47b. The peeling roll moving mechanism 47 can adjust the distance I2 between the peeling roll 43 and the transfer roll 41 by adjusting the position of the peeling roll 43. The peeling roll moving mechanism 47 converts the rotational motion of the motor 47a into a linear motion of the peeling roll 43 in the direction in which the interval I2 changes (left-right direction in FIG. 1) by the ball screw 47b. The motor 47a is a drive source for moving the peeling roll 43, and is, for example, an AC servomotor.

The peeling roll moving mechanism 47 normally positions the peeling roll 43 so that there is no gap between the transfer roll 41 and the peeling roll 43. The state where there is no gap between the transfer roll 41 and the release roll 43 means that the outer peripheral surface 41a of the transfer roll 41 and the surface of the sheet 101 are between the central axis C3 of the transfer roll 41 and the central axis C5 of the release roll 43. It means that there is no gap between the outer peripheral surface 43a of the peeling roll 43 and the back surface 101b of the sheet 101.

When there is no gap between the transfer roll 41 and the release roll 43, the sheet 101 is sandwiched between the transfer roll 41 and the release roll 43, that is, the strip-shaped film 100 is sandwiched between the transfer roll 41 and the release roll 43. It is in a state of being. The portion of the outer peripheral surface 41a of the transfer roll 41 in contact with the front surface 101a of the sheet 101 and the portion of the outer peripheral surface 43a of the release roll 43 in contact with the back surface 101b of the sheet 101 form a nip portion.

The light irradiation device 50 is arranged on the outside of the transfer roll 41 at a position facing the strip-shaped film 100 laminated on the outer peripheral surface 41a of the transfer roll 41 at a distance. The strip-shaped film 100 has transparency for light that cures the resin layer 100c. Therefore, the light from the light irradiation device 50 irradiates the resin layer 100c through the band-shaped film 100. The light cures the resin layer 100c wound around the outer peripheral surface 41a of the transfer roll 41. The light is, for example, ultraviolet light. The strip-shaped film 100 on which the unexposed resin layer 100c is formed and the strip-shaped film 100 having the molded layer 100cc cured by exposure are substantially formed on the outer periphery of the transfer roll 41, the release roll 43, and the take-up shaft 21. It has flexibility that can be imitated.

Further, the pattern transfer device 1 is provided with a sensor 70. The sensor 70 is a distance sensor that measures the distance between the sensor 70 and the strip-shaped film 100. For example, the sensor 70 is a laser displacement meter or the like that can measure the distance between the sensor 70 and the back surface 100b of the strip film 100 in a non-contact manner. Specifically, the sensor 70 is located between a portion of the strip film 100 pressed by the transfer roll 41, which is irradiated with light from the light irradiating device 50, and a portion supported by the peeling roll 43. It faces the portion 100e of the strip-shaped film 100 at a distance. That is, the sensor 70 detects the distance between the sensor 70 and the back surface 100b of the portion 100e of the strip-shaped film 100. The sensor 70 is a portion of the strip-shaped film 100 that is pressed against the transfer roll 41, between a portion that is irradiated with light from the light irradiation device 50 and a portion that is supported by the release roll 43. The distance between the back surface 100b of the portion other than 100e and the sensor 70 may be detected. The sensor 70 measures the distance between the sensor 70 and the portion 100e, and transmits distance information indicating the measured distance to the control device 80. Here, the portion 100d of the strip-shaped film 100 pressed by the transfer roll 41 is a portion of the strip-shaped film 100 along the transfer roll 41. Hereinafter, the portion 100d of the strip-shaped film 100 that is pressed by the transfer roll 41 is also referred to as a pressed portion 100d.

The pattern transfer device 1 having such a configuration is either a first state in which there is a gap between the transfer roll 41 and the pressing roll 42, or a second state in which there is no gap between the transfer roll 41 and the pressing roll 42. It is used in that state. That is, the pressing roll 42 can switch between the first state and the second state. The first state and the second state are used properly according to the thickness of the strip film 100 and the thickness of the resin layer 100c coated on the strip film 100. For example, when the pattern 41b is large and the thickness of the resin layer 100c is relatively thick, the pattern transfer device 1 is used in the first state. On the other hand, for example, when the pattern 41b is small and the thickness of the resin layer 100c is relatively thin, the pattern transfer device 1 is used in the second state. Switching between the first state and the second state is performed by the pressing roll moving mechanism 46 controlled by the control device 80.

Hereinafter, the first state and the second state of the pressing roll 42 will be described in detail with reference to FIGS. 2 and 3.

FIG. 2 is a diagram showing a part of the transfer roll 41 and the pressing roll 42, and is a diagram showing a first state in which a gap g1 and g2 are provided between the transfer roll 41 and the pressing roll 42. In the first state shown in FIG. 2, the distance I1 between the outer peripheral surface 41a of the transfer roll 41 and the outer peripheral surface 42a of the pressing roll 42 is the sum of the thickness of the strip film 100 and the thickness of the resin layer 100c, that is, the thickness of the sheet 101. It is realized by setting it larger than that. The line L1 shown in FIG. 2 and the like is a line connecting the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42.

As shown in FIG. 2, the first state, that is, the state in which the gaps g1 and g2 exist between the transfer roll 41 and the pressing roll 42 is the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42. Between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100, and between the outer peripheral surface 42a of the pressing roll 42 and the back surface 101b of the sheet 101, gaps g1 and g2 are formed. It means a certain state. The fact that there is a gap g1 between the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42 between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip-shaped film 100 means that the outer periphery of the transfer roll 41 has a gap g1. A state in which the surface 41a and the surface 100a of the strip-shaped film 100 are separated from each other. Further, the state where there is a gap g2 between the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42 between the outer peripheral surface 42a of the pressing roll 42 and the back surface 101b of the sheet 101 means that the pressing roll 42 The outer peripheral surface 42a and the back surface 101b of the sheet 101 are separated from each other. Although FIG. 2 shows an example in which both of the two gaps g1 and g2 are formed, only one of the two gaps g1 and g2 may be formed.

When there are gaps g1 and g2 between the transfer roll 41 and the pressing roll 42, the sheet 101 is not sandwiched between the transfer roll 41 and the pressing roll 42, that is, the strip-shaped film is formed by the transfer roll 41 and the pressing roll 42. It is a state in which 100 is not sandwiched.

In the first state, the band-shaped film 100 receives light from the light irradiation device 50 in front of the space between the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42 in the transport direction of the band-shaped film 100. It is along the outer peripheral surface 41a of the transfer roll 41 behind the irradiation position in the transport direction of the strip-shaped film 100 (FIG. 1). As a result, the pattern 41b is transferred to the resin layer 100c before being irradiated with the light from the light irradiation device 50.

FIG. 3 is a diagram showing a part of the transfer roll 41 and the pressing roll 42 of the embodiment, and is a diagram showing a second state in which there are no gaps g1 and g2 between the transfer roll 41 and the pressing roll 42. The second state shown in FIG. 3 is realized by setting the distance I1 between the outer peripheral surface 41a of the transfer roll 41 and the outer peripheral surface 42a of the pressing roll 42 to the thickness of the strip-shaped film 100.

As shown in FIG. 3, the second state, that is, the state in which there are no gaps g1 and g2 between the transfer roll 41 and the pressing roll 42, means that the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42 There are no gaps g1 and g2 between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100, and between the outer peripheral surface 42a of the pressing roll 42 and the back surface 101b of the sheet 101. Refers to the state. The state where there is no gap g1 between the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42 between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip-shaped film 100 means that the transfer roll 41 has no gap g1. A state in which the outer peripheral surface 41a and the surface 100a of the strip-shaped film 100 are in contact with each other. Further, the state where there is no gap g2 between the outer peripheral surface 42a of the pressing roll 42 and the back surface 101b of the sheet 101 between the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42 means that the pressing roll 42 The outer peripheral surface 42a and the back surface 101b of the sheet 101 are in contact with each other.

When there is no gap g1 or g2 between the transfer roll 41 and the pressing roll 42, the sheet 101 is sandwiched between the transfer roll 41 and the pressing roll 42, that is, the strip-shaped film is formed by the transfer roll 41 and the pressing roll 42. 100 is sandwiched.

FIG. 4 is a block diagram of the pattern transfer device 1. The control device 80 is a computer that controls the overall operation of the pattern transfer device 1 and realizes various functions of the pattern transfer device 1. The control device 80 includes a CPU (Central Processing Unit) 81, a ROM (Read Only Memory) 82, and a RAM (Random Access Memory) 83. The CPU 81 executes various arithmetic processes and controls according to various programs stored in a storage unit such as the ROM 82. The CPU 81 is an example of a hardware processor. The ROM 82 stores various programs and various data executed by the CPU 81. The RAM 83 temporarily stores various programs executed by the CPU 81 and stores various data in a rewritable manner.

Further, the feeding motor 12, the take-up motor 22, the transfer motor 44, the peeling motor 45, the motor 46a, the motor 47a, the light irradiation device 50, the sensor 70, the storage device 84, and the input device 85 are connected to the control device 80. ing.

The storage device 84 is non-volatile and stores information even when power is not supplied. The storage device 84 stores various information in a rewritable manner. The storage device 84 stores, for example, the thickness of the strip film 100, the resin layer 100c, and the sheet 101. The thickness of the sheet 101 is the sum of the thickness of the strip film 100 and the thickness of the resin layer 100c. The storage device 84 is, for example, an HDD (Hard Disk Drive), an SSD (Solid State Drive), or the like.

The input device 85 has, for example, a keyboard and a display device, and inputs information according to an operator's operation to the input device 85 to the control device 80.

FIG. 5 is a block diagram showing a functional configuration of the control device 80 of the pattern transfer device 1. As shown in FIG. 5, the control device 80 has a determination unit 91, a detection unit 92, and a control unit 93 as a functional configuration. These functional configurations are realized as a result of the CPU 81 of the control device 80 executing a program stored in a storage unit such as the ROM 82 or the storage device 84. In the embodiment, a part or all of these functional configurations may be realized by dedicated hardware (circuit). Details of the determination unit 91, the detection unit 92, and the control unit 93 will be described later.

The control device 80 executes the transfer process. First, the control device 80 puts the pressing roll 42 in either the first state (FIG. 2) or the second state (FIG. 3). Specifically, the control device 80 uses the motor 46a of the pressing roll moving mechanism 46 so that the distance I1 between the outer peripheral surface 41a of the transfer roll 41 and the outer peripheral surface 42a of the pressing roll 42 becomes a preset value. To move the pressing roll 42. Here, for example, the set value of the interval I1 can be set by the input device 85 or the like.

Next, the control device 80 has a feeding motor 12, a take-up motor 22, a transfer motor 44, a peeling motor 45, a motor 46a, and a motor so that the pattern 41b is transferred to the coating layer 100ca coated on the strip film 100. 47a and the light irradiation device 50 are driven. In this way, the control device 80 sets the pressing roll 42 in the first state or the second state, and performs normal operation.

FIG. 6 is a configuration diagram of the transfer mechanism 40 of the pattern transfer device 1, showing a state in which the strip-shaped film 100 is slackened when the pressing roll 42 is in the first state. FIG. 7 is a configuration diagram of the transfer mechanism 40 of the pattern transfer device 1, showing a state in which the strip-shaped film 100 is slackened when the pressing roll 42 is in the second state. In FIGS. 6 and 7, the illustration of the pattern 41b and the like is omitted.

As shown in FIGS. 6 and 7, slack may occur in the pressed portion 100d of the strip-shaped film 100 during the above transfer process. Here, the fact that the pressed portion 100d of the strip-shaped film 100 has a slack means that there is a gap between the outer peripheral surface 41a of the transfer roll 41 and the resin layer 100c on the strip-shaped film 100. That is, the slack means a state in which the resin layer 100c on the strip-shaped film 100 is separated from the outer peripheral surface 41a of the transfer roll 41. In other words, the slack means a state in which the surface 101a of the sheet 101 is separated from the outer peripheral surface 41a of the transfer roll 41. Looseness can also be referred to as floating.

In order to eliminate the slack, the control device 80 executes a slack handling process. The slack handling process is executed by the determination unit 91, the detection unit 92, and the control unit 93 shown in FIG. The slack handling process will be described in detail below.

The determination unit 91 determines whether or not there is a gap g1 or g2 between the transfer roll 41 and the pressing roll 42 between the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42, that is, the pressing roll 42. Is the first state or not. Specifically, the determination unit 91 is a distance x1 between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100 between the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42. When FIGS. 2 and 3) are larger than zero (FIG. 2), that is, when the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100 are separated from each other, the transfer roll 41 and the pressing roll are separated. There are gaps g1 and g2 between the pressing roll 42 and the pressing roll 42, and it is determined that the pressing roll 42 is in the first state. On the other hand, in the determination unit 91, the distance x1 between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100 between the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42 is zero. In this case (FIG. 3), that is, when the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100 are in contact with each other, there is no gap g1 or g2 between the transfer roll 41 and the pressing roll 42. The pressing roll 42 is determined to be in the second state.

The distance x1 between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100 is, for example, the rotation amount (rotation angle) of the motor 46a from a predetermined initial state of the pressing roll moving mechanism 46 or the ball screw 46b. It is calculated based on the feed amount and the thickness of the strip-shaped film 100 stored in the storage device 84. Therefore, the resin layer 100c is slightly present between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100 between the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42. However, if the distance between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100 is calculated to be zero, the pressing roll 42 can be determined to be in the second state. Here, the rotation amount (rotation angle) of the motor 46a from a predetermined initial state of the pressing roll moving mechanism 46, the feed amount of the ball screw 46b, and the thickness of the strip-shaped film 100 stored in the storage device 84 are the transfer roll 41. This is an example of information regarding the distance x1 between the outer peripheral surface 41a of the above and the surface 100a of the strip-shaped film 100.

The detection unit 92 detects the slack of the pressed portion 100d of the strip-shaped film 100. Specifically, the detection unit 92 receives distance information indicating the distance between the sensor 70 and the strip-shaped film 100 from the sensor 70. That is, the detection unit 92 acquires the distance information from the sensor 70. The detection unit 92 determines whether or not the pressed portion 100d of the strip-shaped film 100 has slack based on the distance information. When the distance between the sensor 70 and the strip film 100 measured by the sensor 70 is a specified distance, the detection unit 92 determines that there is no slack in the pressed portion 100d of the strip film 100. The specified distance is the distance between the sensor 70 and the strip-shaped film 100 in a state without slack. On the other hand, when the distance between the sensor 70 and the strip film 100 measured by the sensor 70 is less than the specified distance, the detection unit 92 determines that the pressed portion 100d of the strip film 100 has slack. That is, the detection unit 92 detects the slack of the pressed portion 100d of the strip-shaped film 100. The distance information output by the sensor 70 is an example of the information of the strip-shaped film 100 for detecting the slack of the pressed portion 100d of the strip-shaped film 100.

When the detection unit 92 detects slack, the control unit 93 performs one of the first elimination process and the second elimination process.

The control unit 93 performs the first elimination process when there are gaps g1 and g2 between the transfer roll 41 and the pressing roll 42, that is, when the pressing roll 42 is in the first state (FIG. 2). Specifically, the control unit 93 controls the peeling motor 45 so that the rotation speed of the peeling roll 43 becomes high, that is, the peripheral speed of the peeling roll 43 becomes high. Therefore, the rotation speed of the peeling roll 43 becomes faster than that before the detection of the slack by the detection unit 92. As a result, the end portion of the slack portion 100f on the front side in the transport direction is transported faster than the end portion of the slack portion 100f on the rear side in the transport direction, and the slack is eliminated (FIG. 1). At this time, for example, the rotation speed of the peeling roll 43 is increased by 1.1 times as compared with that before the detection of the slack by the detection unit 92. The magnification of the rotation speed may be less than 1.1 times or more than 1.1 times. Further, the target rotation speed of the peeling roll 43 is set in advance, and the control unit 93 controls the peeling motor 45 so that the speed of the peeling roll 43 becomes the target rotation speed. The rotation speed of the peeling roll 43 may be detected by a speed sensor (not shown), and the control unit 93 may control the peeling motor 45 using the detection result. At this time, the control unit 93 controls the take-up motor 22 so that the load acting on the take-up motor 22 is substantially constant according to the tension of the strip-shaped film 100. That is, the control unit 93 controls the take-up motor 22 so that the rotation speed of the take-up shaft 21 becomes high.

The control unit 93 performs the second elimination process when there is no gap g1 or g2 between the transfer roll 41 and the pressing roll 42, that is, when the pressing roll 42 is in the second state (FIG. 3). Specifically, the control unit 93 controls the peeling roll moving mechanism 47 so that the peeling roll 43 moves in the direction away from the transfer roll 41 (on the right side in FIG. 7). At this time, the control unit 93 controls the take-up motor 22 so that the load acting on the take-up motor 22 according to the tension of the strip-shaped film 100 becomes substantially constant. That is, the control unit 93 controls the take-up motor 22 so that the rotation speed of the take-up shaft 21 becomes high. As a result, the end portion of the slack portion 100f on the front side in the transport direction is transported faster than the end portion of the slack portion 100f on the rear side in the transport direction, and the slack is eliminated. Further, while this slack is eliminated, the slack portion 100f moves forward in the transport direction, moves forward in the transport direction from the peeling roll 43, and moves away from the transfer roll 41.

Here, FIG. 8 shows a state in which the slack is eliminated by moving the peeling roll 43 from the state shown in FIG. 7. The line L2 shown in FIG. 8 and the like is a line connecting the central axis C3 of the transfer roll 41 and the central axis C4 of the pressing roll 42. Further, in FIG. 8, the illustration of the pattern 41b and the like is omitted. From FIG. 8, it can be seen that when the release roll 43 is moved away from the transfer roll 41, a gap is formed between the transfer roll 41 and the release roll 43, and the slack is eliminated.

Next, the flow of the slack handling process (control method of the pattern transfer device 1) will be described with reference to FIG. FIG. 9 is a flowchart showing a slack corresponding process executed by the control device 80 of the pattern transfer device 1.

As shown in FIG. 9, first, the determination unit 91 determines whether or not there are gaps g1 and g2 between the transfer roll 41 and the pressing roll 42, that is, whether or not the pressing roll 42 is in the first state. (S10). When the determination unit 91 determines that there are gaps g1 and g2 between the transfer roll 41 and the pressing roll 42, that is, the pressing roll 42 is in the first state (S10: Yes (FIG. 2)), the control is performed. The device 80 proceeds to S11.

In S11, the detection unit 92 acquires distance information indicating the distance between the sensor 70 and the strip-shaped film 100 from the sensor 70. Next, the detection unit 92 determines whether or not the pressed portion 100d of the strip-shaped film 100 has slack based on the distance information (S12).

When the detection unit 92 determines that the pressed portion 100d of the strip-shaped film 100 has slack (S12: Yes), the control unit 93 controls the release motor 45 so that the rotation speed of the release roll 43 becomes high. Then, the speed of the peeling roll 43 is increased (S13).

Next, the detection unit 92 acquires distance information indicating the distance between the sensor 70 and the strip-shaped film 100 from the sensor 70 (S14). Next, the detection unit 92 determines, based on the distance information, whether or not the pressed portion 100d of the strip-shaped film 100 has slack, that is, whether or not the slack is eliminated (S15).

If the detection unit 92 determines in S15 that the slack in the pressed portion 100d of the strip-shaped film 100 has not been eliminated (S15: No), the control device 80 returns to S14 and processes S14 and S15. repeat.

In S15, when the detection unit 92 determines that the slack in the pressed portion 100d of the strip-shaped film 100 has been eliminated (S15: Yes), the control unit 93 tells the control unit 93 that the rotation speed of the peeling roll 43 is the speed before the speed increase. That is, the peeling motor 45 is controlled so as to return to the initial speed (S16). As a result, the peeling motor 45 decelerates and returns to the initial speed.

Next, the control device 80 determines whether or not to end the control (S17). The determination as to whether or not to end the control is performed based on, for example, the presence or absence of a control end instruction from the input device 85. When it is determined that the control is terminated (S17: Yes), the strip-shaped film 100 terminates the process. On the other hand, when the control device 80 determines that the control is not terminated (S17: No), the control device 80 returns to S11 and repeats the processing after S11.

Further, in S12, when the detection unit 92 determines that the pressed portion 100d of the strip-shaped film 100 has no slack (S12: No), the control device 80 proceeds to S17 and executes the process of S17.

On the other hand, in S10, when the determination unit 91 determines that there is no gap g1 or g2 between the transfer roll 41 and the pressing roll 42, that is, the pressing roll 42 is in the second state (S10: No (FIG. FIG. 3)), the control device 80 proceeds to S21.

In S21, the detection unit 92 acquires distance information indicating the distance between the sensor 70 and the strip-shaped film 100 from the sensor 70. Next, the detection unit 92 determines whether or not the pressed portion 100d of the strip-shaped film 100 has slack based on the distance information (S22).

When the detection unit 92 determines that the pressed portion 100d of the strip-shaped film 100 has slack (S22: Yes), the control unit 93 moves the release roll 43 in a direction away from the transfer roll 41 to remove the release roll. The motor 47a of the peeling roll moving mechanism 47 is controlled so that the distance I2 between the 43 and the transfer roll 41 is increased (S23). As a result, a gap is formed between the transfer roll 41 and the release roll 43 (FIG. 8).

Next, the detection unit 92 acquires distance information indicating the distance between the sensor 70 and the strip-shaped film 100 from the sensor 70 (S24). Next, the detection unit 92 determines, based on the distance information, whether or not the pressed portion 100d of the strip-shaped film 100 has slack, that is, whether or not the slack is eliminated (S25).

If the detection unit 92 determines in S25 that the slack in the pressed portion 100d of the strip-shaped film 100 has not been eliminated (S25: No), the control device 80 returns to S24 and processes S24 and S25. repeat.

In S25, when the detection unit 92 determines that the slack in the pressed portion 100d of the strip-shaped film 100 has been eliminated (S25: Yes), the control unit 93 sets the release roll 43 to the position before movement, that is, the initial position. The motor 47a of the peeling roll moving mechanism 47 is controlled so as to return (S26). As a result, the peeling roll 43 returns to the initial position.

Next, the control device 80 determines whether or not to end the control (S27). The method for determining whether or not to terminate the control is the same as in S17. When the control device 80 determines that the control is terminated (S27: Yes), the control device 80 terminates the process. On the other hand, when the control device 80 determines that the control is not terminated (S27: No), the control device 80 returns to S21 and repeats the processing after S21.

Further, in S22, when the detection unit 92 determines that the pressed portion 100d of the strip-shaped film 100 has no slack (S22: No), the control device 80 proceeds to S27 and executes the process of S27.

As described above, in the present embodiment, the detection unit 92 detects the slack in the pressed portion 100d (part) of the strip-shaped film 100 (base material). When the detection unit 92 detects slack in the first state where there are gaps g1 and g2 between the transfer roll 41 and the pressing roll 42, the control unit 93 increases the rotation speed of the release roll 43. 45 (drive source) is controlled. Therefore, according to the present embodiment, since the slack in the pressed portion 100d of the strip-shaped film 100 (base material) can be eliminated, it is possible to suppress the deterioration of the transfer accuracy of the pattern 41b. At this time, in the present embodiment, since the strip-shaped film 100 is sandwiched between the transfer roll 41 and the release roll 43, it is possible to suppress a decrease in the pressing force for pressing the strip-shaped film 100 against the transfer roll 41. be able to. Therefore, it is possible to suppress a decrease in the transfer accuracy of the pattern 41b.

Further, in the present embodiment, when the detection unit 92 detects slack in the second state where there is no gap g1 or g2 between the transfer roll 41 and the pressing roll 42, the control unit 93 causes the release roll 43 to be the transfer roll. The peeling roll moving mechanism 47 (moving mechanism) is controlled so as to move away from 41. Therefore, according to the present embodiment, the slack in the pressed portion 100d of the strip-shaped film 100 can be eliminated, and the slack can be moved in a direction away from the transfer roll 41, so that the transfer accuracy of the pattern 41b can be achieved. Can be suppressed from decreasing. At this time, since the strip-shaped film 100 is sandwiched between the transfer roll 41 and the pressing roll 42, it is possible to suppress a decrease in the pressing force for pressing the strip-shaped film 100 against the transfer roll 41. Therefore, it is possible to suppress a decrease in the transfer accuracy of the pattern 41b.

As described above, in the present embodiment, regardless of whether the pressing roll 42 is in the first state or the second state, when the strip-shaped film 100 is slackened, the pressing roll 42 and the peeling roll 43 are used. The state in which the strip-shaped film 100 is sandwiched between one of them and the transfer roll 41 can be maintained.

In the above embodiment, the sensor 70 is an example of a distance sensor, but the present invention is not limited to this. For example, the sensor 70 may be an image sensor that captures an image of the strip-shaped film 100. In this case, the detection unit 92 can determine the presence or absence of slack in the strip-shaped film 100 based on the captured image transmitted from the sensor 70. In this case, for example, the sensor 70 may be arranged at a position where the strip-shaped film 100 is imaged from the axial direction of the transfer roll 41.

Further, in the above embodiment, an example is shown in which the pressing roll moving mechanism 46 and the peeling roll moving mechanism 47 have motors 46a and 47a and ball screws 46b and 47b, respectively, and the motors 46a and 47a are AC servomotors. However, it is not limited to this. For example, in the pressing roll moving mechanism 46 and the peeling roll moving mechanism 47, the motors 46a and 47a are linear motors, and the pressing roll 42 and the peeling roll 43 are moved by the linear motion of the motors 46a and 47a. good.

Further, in the above embodiment, in the slack handling process of the control device 80 shown in FIG. 9, there is an example in which the processes of S16 and S26 are performed on the condition that the slack is eliminated in S15 and S25. Shown, but not limited to. For example, the processes of S16 and S26 may be performed on the condition that the specified time has elapsed since S13 and S23 were performed. In this case, the processes of S14, S15, 24, and S26 are omitted. Further, in this case, the degree of speed increase of the peeling roll 43 in S13 may be increased as the transport speed of the strip film 100 or the rotation speed of the transfer roll 41 is faster. That is, in S13, the faster the transport speed of the strip film 100 or the rotation speed of the transfer roll 41, the faster the rotation speed of the release roll 43 may be.

Further, in the above embodiment, the distance between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100 is the rotation amount (rotation angle) of the motor 46a from a predetermined initial state of the pressing roll moving mechanism 46. Alternatively, an example calculated based on the feed amount of the ball screw 46b and the thickness of the strip-shaped film 100 stored in the storage device 84 is shown, but the present invention is not limited thereto. For example, the distance between the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip-shaped film 100 may be measured by a distance sensor or the like.

Further, in the above embodiment, the determination unit 91 determines that there is no gap g1 or g2 between the transfer roll 41 and the pressing roll 42, and the outer peripheral surface 41a of the transfer roll 41 and the surface 100a of the strip film 100 are in contact with each other. It was judged by whether, but it is not limited to this. For example, the determination unit 91 may determine whether or not there is a gap g1 or g2 between the transfer roll 41 and the pressing roll 42 based on whether the outer peripheral surface 41a of the transfer roll 41 and the surface 101a of the sheet 101 are in contact with each other. good.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... pattern transfer device, 10 ... feeding mechanism, 20 ... winding mechanism, 30 ... coating mechanism, 41 ... transfer roll, 41a ... outer peripheral surface, 41b ... pattern, 42 ... pressing roll, 43 ... peeling roll, 45 ... peeling Motor (drive source), 50 ... light irradiation device, 92 ... detection unit, 93 ... control unit, 100a ... front surface (first surface), 100b ... back surface (second surface), 100 ... strip-shaped film (base material), 100c ... Resin layer (photocurable resin), 100d ... Pressed portion (part), g1, g2 ... Gap.

Claims (6)

A transport mechanism for transporting a base material having a first surface and a second surface opposite to the first surface in the longitudinal direction of the base material,
A coating mechanism that coats the first surface of the base material transported by the transport mechanism with a photocurable resin, and a coating mechanism.
It has an outer peripheral surface provided with a pattern, and the base material coated with the photocurable resin is wound and rotated in a state where the photocurable resin is in contact with the outer peripheral surface, and the photocurable resin is applied. A transfer roll that transfers the pattern to the resin, and
A pressing roll that presses the second surface of the base material coated with the photocurable resin toward the transfer roll, and
A light irradiation device that cures the photocurable resin by irradiating the photocurable resin to which the pattern is transferred, and a light irradiation device.
A peeling roll that peels the base material from which the photocurable resin has been cured by the light irradiation device from the transfer roll,
The drive source for rotating the peeling roll and
A detection unit that detects slack in the portion of the substrate that is pressed against the transfer roll, and
When the detection unit detects the slack in a state where there is a gap between the transfer roll and the pressing roll, a control unit that controls the drive source so that the rotation speed of the peeling roll becomes faster,
A pattern transfer device equipped with. A transport mechanism for transporting a base material having a first surface and a second surface opposite to the first surface in the longitudinal direction of the base material,
A coating mechanism that coats the first surface of the base material transported by the transport mechanism with a photocurable resin, and a coating mechanism.
It has an outer peripheral surface provided with a pattern, and the base material coated with the photocurable resin is wound and rotated in a state where the photocurable resin is in contact with the outer peripheral surface, and the photocurable resin is applied. A transfer roll that transfers the pattern to the resin, and
A pressing roll that presses the second surface of the base material coated with the photocurable resin toward the transfer roll, and
A light irradiation device that cures the photocurable resin by irradiating the photocurable resin to which the pattern is transferred, and a light irradiation device.
A peeling roll that peels the base material from which the photocurable resin has been cured by the light irradiation device from the transfer roll,
A moving mechanism for moving the peeling roll and
A detection unit that detects slack in the portion of the substrate that is pressed against the transfer roll, and
When the detection unit detects the slack in a state where there is no gap between the transfer roll and the pressing roll, a control for controlling the moving mechanism so that the peeling roll moves away from the transfer roll. Department and
A pattern transfer device equipped with. A transport mechanism for transporting a base material having a first surface and a second surface opposite to the first surface in the longitudinal direction of the base material,
A coating mechanism that coats the first surface of the base material transported by the transport mechanism with a photocurable resin, and a coating mechanism.
It has an outer peripheral surface provided with a pattern, and the base material coated with the photocurable resin is wound and rotated in a state where the photocurable resin is in contact with the outer peripheral surface, and the photocurable resin is applied. A transfer roll that transfers the pattern to the resin, and
A pressing roll that presses the second surface of the base material coated with the photocurable resin toward the transfer roll, and
A light irradiation device that cures the photocurable resin by irradiating the photocurable resin to which the pattern is transferred, and a light irradiation device.
A peeling roll that peels the base material from which the photocurable resin has been cured by the light irradiation device from the transfer roll,
The drive source for rotating the peeling roll and
A moving mechanism for moving the peeling roll and
A detection unit that detects slack in the portion of the substrate that is pressed against the transfer roll, and
When the detection unit detects the slack in a state where there is a gap between the transfer roll and the pressing roll, the drive source is controlled so that the rotation speed of the peeling roll becomes high, and the transfer roll and the transfer roll are used. When the detection unit detects the slack in a state where there is no gap between the pressing roll and the pressing roll, a control unit that controls the movement mechanism so that the release roll moves away from the transfer roll.
A pattern transfer device equipped with. A transport mechanism for transporting a base material having a first surface and a second surface opposite to the first surface in the longitudinal direction of the base material,
A coating mechanism that coats the first surface of the base material transported by the transport mechanism with a photocurable resin, and a coating mechanism.
It has an outer peripheral surface provided with a pattern, and the base material coated with the photocurable resin is wound and rotated in a state where the photocurable resin is in contact with the outer peripheral surface, and the photocurable resin is applied. A transfer roll that transfers the pattern to the resin, and
A pressing roll that presses the second surface of the base material coated with the photocurable resin toward the transfer roll, and
A light irradiation device that cures the photocurable resin by irradiating the photocurable resin to which the pattern is transferred, and a light irradiation device.
A peeling roll that peels the base material from which the photocurable resin has been cured by the light irradiation device from the transfer roll,
The drive source for rotating the peeling roll and
It is a control method of a pattern transfer device equipped with
A step in which the detection unit detects slack in the portion of the base material pressed by the transfer roll, and
When the detection unit detects the slack in a state where the control unit has a gap between the transfer roll and the pressing roll, the step of controlling the drive source so that the rotation speed of the peeling roll becomes high. When,
Control method of the pattern transfer device including. A transport mechanism for transporting a base material having a first surface and a second surface opposite to the first surface in the longitudinal direction of the base material,
A coating mechanism that coats the first surface of the base material transported by the transport mechanism with a photocurable resin, and a coating mechanism.
It has an outer peripheral surface provided with a pattern, and the base material coated with the photocurable resin is wound and rotated in a state where the photocurable resin is in contact with the outer peripheral surface, and the photocurable resin is applied. A transfer roll that transfers the pattern to the resin, and
A pressing roll that presses the second surface of the base material coated with the photocurable resin toward the transfer roll, and
A light irradiation device that cures the photocurable resin by irradiating the photocurable resin to which the pattern is transferred, and a light irradiation device.
A peeling roll that peels the base material from which the photocurable resin has been cured by the light irradiation device from the transfer roll,
A moving mechanism for moving the peeling roll and
It is a control method of a pattern transfer device equipped with
A step in which the detection unit detects slack in the portion of the base material pressed by the transfer roll, and
When the detection unit detects the slack in a state where the control unit does not have a gap between the transfer roll and the pressing roll, the movement mechanism is such that the peeling roll moves away from the transfer roll. And the steps to control
Control method of the pattern transfer device including. A transport mechanism for transporting a base material having a first surface and a second surface opposite to the first surface in the longitudinal direction of the base material,
A coating mechanism that coats the first surface of the base material transported by the transport mechanism with a photocurable resin, and a coating mechanism.
It has an outer peripheral surface provided with a pattern, and the base material coated with the photocurable resin is wound and rotated in a state where the photocurable resin is in contact with the outer peripheral surface, and the photocurable resin is applied. A transfer roll that transfers the pattern to the resin, and
A pressing roll that presses the second surface of the base material coated with the photocurable resin toward the transfer roll, and
A light irradiation device that cures the photocurable resin by irradiating the photocurable resin to which the pattern is transferred, and a light irradiation device.
A peeling roll that peels the base material from which the photocurable resin has been cured by the light irradiation device from the transfer roll,
The drive source for rotating the peeling roll and
A moving mechanism for moving the peeling roll and
It is a control method of a pattern transfer device equipped with
A step in which the detection unit detects slack in a portion of the substrate that is pressed by the transfer roll in a state where there is a gap between the transfer roll and the pressing roll.
When the detection unit detects the slack in a state where the gap is between the transfer roll and the pressing roll, the control unit controls the drive source so that the rotation speed of the peeling roll becomes high. Steps and
A step in which the detection unit detects the slack in a state where there is no gap between the transfer roll and the pressing roll.
When the detection unit detects the slack in a state where the control unit does not have the gap between the transfer roll and the pressing roll, the peeling roll moves so as to move away from the transfer roll. Steps to control the mechanism and
Control method of the pattern transfer device including.

Images