JPH0785960A - Roll device - Google Patents

Abstract

PURPOSE:To provide a roll device which varies the heat crown on the roll surface to any desired shapes through regulating the temp. distribution on the roll for the purpose of adjusting the thickness etc., of a base member of paper, fabric, etc. CONSTITUTION:Cylinders 2, 3 are installed rigidly on both sides of a hollow roller 1. A stationary shaft 4 is installed inside the roller 1, and a solenoid 5 set on this shaft 4 through an iron core 6 is located concentrically with the roller 1. A heat transmitting means 14 is provided in a space 13 bounded by the inside surface 1a of the hollow roll 1 and the outside surface of the solenoid 5 and held by a holding means 15 which is installed in the stationary part within the roll 1.

Description

Detailed Description of the Invention

[0001]

This invention relates to paper, plastic,
The present invention relates to a roll device that heats a base material such as cloth.

[0002]

2. Description of the Related Art FIG.
FIG. 26 shows a conventional roll device disclosed in Japanese Patent Laid-Open Publication No. Gazette. In FIG. Numerals 2 and 3 are hollow first and second cylindrical bodies integrally provided on both sides of the roll 1, respectively, and 4 is a fixed shaft arranged inside the roll 1, and one side shaft end 4a is the first. It extends through the inside of the cylinder 2 to the outside, and the other-side shaft end portion 4 b is inserted through the inside of the second cylinder 3.
Reference numeral 5 denotes an electromagnetic coil wound around the fixed shaft 4 via an iron core 6, and is arranged concentrically with the roll 1. 6a is an iron core end plate, and 7 and 8 are bearing mechanisms arranged on the outer peripheral sides of the first and second cylindrical bodies 2 and 3, respectively.
a, 8a and bearing bases 7b, 8b support the roll 1 and rotatably support the roll 1. Reference numeral 9 denotes a bearing disposed between the first tubular body 2 and the one-side shaft end portion 4a of the fixed shaft 4, and 10 denotes between the second tubular body 3 and the other-side shaft end portion 4b of the fixed shaft 4. It is a bearing provided. The fixed shaft 4 is supported by the bearing mechanisms 7 and 8 via the bearings 9 and 10 and the first and second cylindrical bodies 2 and 3. Reference numeral 11 denotes a base that blocks the rotation of one side shaft end portion 4a of the fixed shaft 4 that extends through the first cylindrical body 2 and extends to the outside.

Next, the operation will be described. By turning on the power and exciting the electromagnetic coil 5 through a lead wire (not shown), magnetic flux is generated by the iron core 6, the inner surface portion 1a of the roll, and the air portion between the iron core and the roll as a magnetic circuit to generate an eddy current in the inner surface portion 1a of the roll. Flows and heats up. As a result, the roll 1 is induction-heated and the roll 1 reaches a high temperature. That roll 1
Is rotatably supported by bearing mechanisms 7 and 8 arranged on the outer peripheral sides of the first and second cylindrical bodies 2 and 3 that are continuously provided on both sides, and is rotated by drive means such as a motor, a pulley, and a gear (not shown). . The fixed shaft in the roll 1 is the bearing 9, 10
By arranging, the load is supported by the bearing mechanisms 7 and 8 together with the roll 1, and the rotation of the fixed shaft 4 is blocked by the base 11 arranged outside.

[0004]

However, in the above-mentioned conventional apparatus, as shown in FIG. 27, a base material such as cloth, paper, plastic or metal is passed between the pair of rolls and sandwiched between the rolls. When heating and adjusting the thickness and tempering of the base material as shown in FIG. 28, and when processing such as laminating a plurality of base materials as shown in FIG. The receiving roll bends. As a result,
The roll of No. 0 is bent as shown in Fig. 31, and the base material sandwiched between the two rolls that are bent as shown in Fig. 31 is thick in the center part and thin at the end parts. There was a problem with me. Further, when the base material is conveyed by one roll as shown in FIG. 32, there is a problem that the base material meanders and comes off the roll. Further, conventionally, as a countermeasure against this, the surface of the roll has been processed into a crown shape in advance as shown in FIG. 33, and the rolls are made parallel to each other as shown in FIG. 34 when processing through the base material. Even in the case of one roll, the roll is provided with a crown to prevent the base material from meandering. However, in this case, providing the crown shape on the surface of the roll in advance requires high-precision machining, and there is a problem that the cost becomes extremely high. Further, there is a problem that the size of the deflection of the roll changes when the dimensions such as the thickness and width of the base change or the material of the base changes, and the roll must be replaced each time. Also, JP-A-60-2640
When the ampere-turn of the coil provided inside the roll is locally changed as described in Japanese Patent No. 78, a magnetic circuit including an iron core, an inner surface portion 1a of the roll, and an air portion between the iron core and the roll is formed as shown in FIG. , The magnetic flux φ1 generated by the coil on one side and the magnetic flux φ2 generated by the coil on the other side intersect, and each cannot be controlled independently.
There is a problem that it is difficult to locally change the heat generation of the inner surface portion 1a of the roll and the thermal crown of the roll cannot be freely adjusted.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a roll device capable of changing the shape of the roll surface.

[0006]

SUMMARY OF THE INVENTION A roll device according to the present invention comprises a roll which is hollow and is provided with concentric hollow cylinders on both sides thereof and which are concentrically arranged inside the roll. An electromagnetic coil, a heat transfer means arranged in a space formed between the inner surface of the roll and an outer peripheral surface of the electromagnetic coil, and a holding means attached to a stationary portion inside the roll to hold the heat transfer means. It is provided.

[0007] Further, a roll having a hollow shape and a hollow cylindrical body integrally formed on both sides of the roll is continuously provided, an electromagnetic coil concentrically arranged inside the roll, an inner surface of the roll and an electromagnetic coil. A heat transfer means arranged in a space formed between the outer peripheral surface part, a holding means attached to a stationary part inside the roll for holding the heat transfer means, and a temperature for detecting the temperature at arbitrary plural positions of the roll. A sensor, a temperature detection means for inputting a detection signal of this temperature sensor and outputting the temperature difference, and a signal from this temperature detection means are input and compared with a preset temperature to determine the heat transfer amount of the heat transfer means. The control means for adjusting is provided.

[0008] Further, the base material is inserted between the one-sided roll which is hollow and has a pair of hollow cylinders integrally formed on both sides thereof and which is arranged in pair with the one-sided roll. The other side roll, an electromagnetic coil concentrically arranged inside at least one of these rolls, and arranged in a space formed between the inner surface of the roll and the outer peripheral surface of the electromagnetic coil. A heat transfer means, a holding means attached to a stationary portion inside the roll for holding the heat transfer means,
A thickness detecting means for detecting the thickness of the base material and a control means for inputting a signal from the thickness detecting means and comparing the preset thickness to adjust the heat transfer amount of the heat transfer means are provided. It is a thing.

Further, a roll which is hollow and has hollow cylinders integrally formed on both sides of the roll, an electromagnetic coil concentrically arranged inside the roll, an inner surface of the roll and an electromagnetic coil A heat transfer means arranged in a space formed between the outer peripheral surface portion, a base material heated by a roll, a meandering position detecting means for detecting meandering of the base material, and a signal from the meandering position detecting means. And a control means for adjusting the amount of heat transfer of the heat transfer means by comparing with a preset meandering position.

Further, a plurality of heat pipes are arranged inside the hollow roll in parallel to the axial direction and in the circumferential direction.

In addition, a plurality of heat pipes arranged in parallel to the axial direction and in the circumferential direction inside the hollow roll are divided and arranged in the axial direction.

Further, the inner surface of the hollow roll is blackbody-treated.

Further, a reflector for reflecting the heat of the heat transfer means is provided between the outer peripheral portion of the electromagnetic coil and the heat transfer means.

Further, a roll which is hollow and has hollow cylinders integrally formed on both sides of the roll, an electromagnetic coil concentrically arranged inside the roll, an inner surface of the roll and an outer periphery of the electromagnetic coil. A heat transfer means arranged in a space formed between the heat transfer means, a holding means attached to a stationary portion inside the roll for holding the heat transfer means, and a moving means for moving the heat transfer means in the axial direction of the roll. And are provided.

Further, a roll having a hollow body and a hollow cylindrical body integrally formed on both sides of the roll is continuously provided, an electromagnetic coil concentrically arranged inside the roll, and an outer peripheral portion of the electromagnetic coil. The heat insulator and the heat transfer means arranged on the outer peripheral side of the heat insulator are provided.

Further, a plurality of heat transfer means are arranged in the axial direction.

Further, the plurality of heat transfer means arranged in the axial direction are partially controlled.

Further, a plurality of heat transfer means are arranged parallel to the axial direction and circumferentially.

Further, a roll which is hollow and has hollow cylinders integrally formed on both sides of the roll, an electromagnetic coil concentrically arranged inside the roll, an inner surface of the roll and an outer periphery of the electromagnetic coil. A plurality of heat transfer means are arranged in the space formed between the surface part and the roll, the central part of the roll is densely arranged and the end part of the roll is roughly arranged, and the heat transfer means is attached to the stationary part inside the roll. A holding means for holding the means is provided.

[0020]

In the roll device according to the present invention, the magnetic circuit of the induction heating means provided inside the roll is provided by the heat transfer means provided in the space formed between the inner surface of the roll and the outer peripheral surface of the electromagnetic coil. Any position of the roll can be freely heated by heat transfer without interference, the temperature distribution in the axial direction of the roll is changed, and the outer diameter of the roll is changed in the axial direction.

Further, the detection signal of the temperature sensor for detecting the temperature at an arbitrary position of the hollow roll is inputted, the temperature difference is outputted by the temperature detecting means, and the signal from the temperature detecting means is inputted and preset. The magnetic circuit of the induction heating means provided inside the roll by adjusting the amount of heat transfer of the heat transfer means provided in the space formed between the inner surface of the roll and the outer peripheral surface of the electromagnetic coil in comparison with the temperature The temperature distribution in the axial direction of the roll is freely changed by heat transfer without interfering with, and the outer diameter of the roll is changed in the axial direction.

Further, the thickness of the base material is detected, and the preset value of the thickness of the base material is compared with the detected value to detect a difference between the inner surface of the one-side roll and the outer peripheral surface of the electromagnetic coil. By adjusting the amount of heat transfer of the heat transfer means provided in the formed space and transferring heat without interfering with the magnetic circuit of the induction heating means provided inside the roll, the temperature distribution in the axial direction of the roll can be freely changed. Change the outer diameter in the axial direction.

A space formed between the inner surface of the roll and the outer surface of the electromagnetic coil by detecting the meandering of the base material and comparing the detected value with the preset position of the base material. The heat transfer amount of the heat transfer means provided in the section is adjusted to freely change the temperature distribution in the axial direction of the roll by heat transfer without interfering with the magnetic circuit of the induction heating means provided inside the roll, and the roll outer diameter can be adjusted. Change in the axial direction.

Further, the temperature distribution in the axial direction of the roll is rapidly changed by the action of a plurality of heat pipes arranged in the hollow roll in parallel with the axial direction and in the circumferential direction.

The temperature of the roll is partially changed by the heat pipes arranged in the hollow roll in parallel with the axial direction and in the circumferential direction and divided in the axial direction.

Further, since the inner surface of the roll is subjected to the black body treatment, the heat from the heat transfer means is efficiently absorbed.

Further, the reflector provided between the outer peripheral surface of the electromagnetic coil and the heat transfer means reflects the heat from the heat transfer means toward the electromagnetic coil to efficiently transfer the heat to the inner surface of the roll.

Further, the heat transfer means provided in the space formed between the inner surface of the roll and the outer peripheral surface of the electromagnetic coil is moved in the axial direction by the moving means, so that induction heating provided inside the roll is achieved. It is possible to freely heat any position of the roll by heat transfer without interfering with the magnetic circuit of the means, change the axial temperature distribution of the roll, and change the roll outer diameter in the axial direction.

Further, by disposing the heat transfer means on the outer peripheral side of the heat insulator provided on the outer peripheral portion of the electromagnetic coil, the heat transferred from the heat transfer means to the electromagnetic coil is significantly reduced, and the heat is efficiently transferred to the inner surface of the roll. Communicate well.

By disposing a plurality of heat transfer means in the axial direction, the temperature distribution in the axial direction of the roll is changed and the outer diameter of the roll is changed.

The heat crown of the roll can be freely formed by partially controlling the heat transfer means arranged in the axial direction.

Further, by disposing a plurality of heat transfer means in parallel with the axial direction and in the circumferential direction, the temperature distribution in the axial direction of the roll is changed and the outer diameter of the roll is changed.

Further, since the central portion side of the roll of the heat transfer means is densely arranged and the end portion side of the roll of the heat transfer means is roughly arranged, the heat transfer amount on the central portion side of the roll is increased, Efficiently forms the thermal crown of the roll.

[0034]

【Example】

Example 1. Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. In these figures, 1 is a hollow roll, 1a is the inner surface of the roll 1, and 1b is the roll 1.
Is the outer surface of the. Reference numerals 2 and 3 are hollow first and second cylindrical bodies integrally provided on both sides of the roll 1, respectively, and 4 is the roll 1
The fixed shafts 5 arranged inside the coil are electromagnetic coils wound around the fixed shaft 4 via the iron core 6, and are arranged concentrically with the roll 1. 6a is an iron core end plate. Also, the first
The rolls 1 are supported and rotatably supported by bearing mechanisms (not shown) arranged on the outer peripheral sides of the second cylindrical bodies 2 and 3, respectively. Reference numeral 13 denotes a cylindrical space portion formed between the inner surface portion 1a of the hollow roll 1 and the outer peripheral surface portion of the electromagnetic coil 5, and 14 denotes heat transfer means arranged in this space portion 13, for example, a resistance heater. The heating element is configured by Joule heat such as an infrared heater. As the heat transfer means 14, for example, as shown in FIG. 3, it is formed in a cylindrical shape and has opposite end portions 14a and 14b, respectively, and an inlet lead terminal 14c and an outlet lead terminal 14d are provided in the vicinity of either one of the end portions. It is provided so as to generate only Joule heat. Reference numeral 15 is a holding means that is attached to a stationary portion inside the roll 1 and holds the heat transfer means 14. As an example, the holding means 15 has one side fixed to the iron core end plate 6a of the iron core 6 by a bolt or the like. The case where the heat transfer means 14 is held by the other side of 15 by fixing with a bolt or the like is shown. Further, a plurality of holding means 15 are arranged in the circumferential direction to hold the heat transfer means 14.

Next, the operation will be described. Power on
Then, by exciting the electromagnetic coil 5 provided inside the roll 1 through a lead wire (not shown), the electromagnetic coil 5
Generates an induction magnetic flux to form a magnetic circuit composed of the iron core 6, the iron core end plate 6a, and the inner surface portion 1a of the roll 1, and the inner surface portion 1a of the roll 1 is induction-heated.
It becomes a high temperature. The roll 1 is rotatably supported by a bearing mechanism arranged on the outer peripheral side of the first and second cylindrical bodies 2 and 3 which are continuously provided on both sides.

By the way, in FIG. 1, the roll 1 is 1
Although the case of a book is illustrated, as shown in FIG. 4, for example, two rolls 1 are paired, and a band-shaped base made of cloth, paper, plastic, film, metal or the like is provided between the two rolls 1. When the material 12 is passed through, sandwiched between the rolls 1 and 1 and heated to perform processing such as thickness adjustment, tempering, and bonding of the base material 12, the roll 1 receives the reaction force from the base material 12 The base material 12 is thick and flexible at the center and thin at the ends. At that time, when a voltage is applied to the heat transfer means 14 arranged in the space formed between the inner surface portion 1a of the roll 1 and the outer peripheral surface portion of the electromagnetic coil 5, the inner surface portion 1a of the roll 1 moves to the heat transfer means 14. It is heated by convection accompanying heat generation by Joule heat and heat transfer by radiation. Since the roll 1 is supported and rotated by the bearing mechanism, the inner surface portion 1 of the roll 1
A is uniformly heated in the circumferential direction. This allows roll 1
By heating only a part of the inner surface portion 1a of the roll 1, for example, the central portion of the roll 1, a difference in thermal expansion can be generated and the diameter of the central portion of the roll 1 can be increased. That is, the roll 1 can be subjected to a thermal crown, and as a result, the roll 1
The effect that the unevenness of the thickness of the base material 12 due to the bending of the base material can be significantly reduced is obtained. The heat transfer means 14
Is a heat transfer method by convection and radiation associated with heat generation by Joule heat, which is different from the induction heating method such as a resistance heater and an infrared heater, and does not interfere with the magnetic circuit of the induction heating means, and the heat transfer amount of the heat transfer means 14 The temperature of the roll 1 can be locally and freely changed by controlling the temperature of the roll 1 without any interference by the magnetic circuit of the induction heating means. A heat crown can be attached to the outer peripheral surface portion 1b. Further, the heat transfer means 14 may be provided on both of the two rolls 1, but if the heat transfer means 14 is provided on at least one of the rolls 1, the intended purpose and effect can be achieved.

Example 2. The second embodiment of the present invention will be described with reference to FIG. In FIG. 5, 1 is a hollow roll, 1 a is the inner surface of the roll 1, and 1 b is the outer surface of the roll 1. 2, 3 are hollow first and second cylindrical bodies, 4 is a fixed shaft,
5 is an electromagnetic coil, 6 is an iron core, 6a is an iron end plate, 13 is a space, 14 is a heat transfer means, and 15 is a holding means. Reference numeral 16 is a temperature sensor for detecting the temperature at any arbitrary position of the roll 1, 17 is a temperature detecting means for inputting a detection signal of each temperature sensor 16 and outputting the temperature difference, and 18 is a temperature at an arbitrary position of the roll 1. A setting device for setting the temperature, 19 is the temperature detecting means 1
It is a control means for inputting the signal from 7 and comparing it with the temperature preset by the setting device 18 to adjust the heat transfer amount of the heat transfer means 14. Reference numeral 20 is a power supply device that applies a heat transfer amount to the heat transfer means 14 based on a control command from the control means 19.

Next, the operation will be described. Power on
Then, by exciting the electromagnetic coil 5 provided inside the roll 1 through a lead wire (not shown), the electromagnetic coil 5
Generates an induction magnetic flux to form a magnetic circuit composed of the iron core 6, the iron core end plate 6a, and the inner surface portion 1a of the roll 1, and the inner surface portion 1a of the roll 1 is induction-heated.
It becomes a high temperature.

By the way, when a voltage is applied from the power supply device 20 to the heat transfer means 14 arranged in the space 13 formed between the inner surface portion 1a of the roll 1 and the outer peripheral surface portion of the electromagnetic coil 5, the inner surface portion 1a of the roll 1 is applied. Is heated by heat transfer by convection and radiation accompanying heat generation by the Joule heat of the heat transfer means 14. Since the roll 1 is supported and rotated by the bearing mechanism, the inner surface portion 1a of the roll 1 is uniformly heated in the circumferential direction. Thereby, by heating only a part of the inner surface portion 1a of the roll 1, for example, the central portion of the roll 1, a difference in thermal expansion can be caused and the diameter of the central portion of the roll 1 can be increased. That is, a heat crown can be generated in the roll 1, and as a result, the thickness unevenness of the substrate 12 due to the deflection of the roll 1 can be significantly reduced. Further, since the temperature of the roll 1 is measured and the temperature of the roll 1 is controlled by the control means 19 so as to be a predetermined temperature, the heat transfer amount of the heat transfer means 14 is set so as to obtain a predetermined heat crown amount. The thickness can be adjusted, and the thickness unevenness of the substrate 12 can be alleviated more accurately. The temperature sensor 16 of the roll 1 may be constituted by a non-contact thermometer arranged in a non-contact state with the surface of the roll 1 as shown in FIG. 6, or when the rotation speed of the roll 1 is low. It may be possible to directly measure with a contact type thermometer, and further, a temperature sensor such as a thermocouple or a resistance temperature detector is embedded in the roll 1, and a temperature signal of the roll 1 is obtained by a slip ring, a rotary transformer or the like. Needless to say, the same effects as those of the above-described embodiment can be obtained.

Example 3. A third embodiment of the invention will be described with reference to FIG. In FIG. 7, reference numeral 21 denotes a hollow one-sided roll. For example, as in the above-described embodiment, the hollow first and first rolls 21 are integrally connected to both sides of the one-sided roll 21, respectively.
An electromagnetic coil wound around a fixed shaft via an iron core is provided inside the second cylindrical body and the one-side roll 21.
It is arranged concentrically with 1. Further, the one side roll 21 is supported and the one side roll 21 is rotatably supported by the bearing mechanisms respectively arranged on the outer peripheral sides of the first and second cylindrical bodies. 22 is arranged in a pair with the one-side roll 21 and between the one-side roll 21 is, for example, a film-shaped substrate 2
The other side roll through which 3 is inserted, 24 is, for example, a heat transfer means provided inside the one side roll 24, that is, in the space formed between the inner surface of the roll and the outer peripheral surface of the electromagnetic coil. 25 is a thickness detecting means for detecting the thickness of the base material 23 after being processed by being inserted between the one side roll 21 and the other side roll 22, and 26 is a thickness of the base material 23 after being processed. The setting device for setting, 27 inputs the signal from the thickness detecting means 25, compares the thickness preset by the setting device 26,
It is a control means for adjusting the amount of heat transfer of the heat transfer means 24. 28
Is a power supply device that gives a heat transfer amount to the heat transfer means 24 based on a control command from the control means 27.

By the way, when a voltage is applied to the heat transfer means 24 arranged in the space formed between the inner surface of the one-side roll 21 and the electromagnetic coil, the inner surface of the one-side roll 21 is transferred to the heat transfer means 24. It is heated by convection accompanying heat generation by Joule heat and heat transfer by radiation. One side roll 21
Is supported by a bearing mechanism and is rotating, so that the inner surface of the one-side roll 21 is uniformly heated in the circumferential direction. As a result, by heating only a part of the inner surface of the one-side roll 21, for example, only the central part of the one-side roll 21, a difference in thermal expansion can be generated and the diameter of the central part of the one-side roll 21 can be increased. That is, a heat crown can be generated in the one-side roll 21, and as a result, the thickness unevenness of the base material 23 due to the bending of the one-side roll 21 can be significantly reduced. As described above, the thickness of the base material 23 is measured, and the heat transfer amount of the heat transfer means 24 is adjusted so that the heat crown amount of the one-side roll 21 is obtained so that the thickness of the base material 23 becomes a predetermined thickness. Since this is possible, there is an effect that the thickness of the base material 23 after processing can be made uniform in the width direction.

Example 4. A fourth embodiment of the present invention will be described based on FIGS. 8 and 9. In each of these drawings, reference numeral 1 denotes a hollow roll, and as shown in the first embodiment, hollow first and second cylindrical bodies integrally provided on both sides of the roll 1 respectively, and the roll 1 Inside, an electromagnetic coil wound around a fixed shaft via an iron core is arranged concentrically with the roll 1. Further, the rolls 1 are supported and rotatably supported by the bearing mechanisms arranged on the outer peripheral sides of the first and second cylindrical bodies, respectively. Reference numeral 29 denotes a film-shaped base material, which is heated by the roll 1. 30 is roll 1
Is a heat transfer means provided in a space portion formed between the inner surface portion of and the outer peripheral surface portion of the electromagnetic coil. 31 is a meandering position detecting means for detecting the meandering position of the base material 29 after passing the roll 1, 32 is a setting device for setting the meandering position of the base material 29 after passing the roll 1, 33 is a meandering position detecting means It is a control means for inputting a signal from 31 and comparing the meandering position preset by the setting device 32 with the heat transfer amount of the heat transfer means 30. Reference numeral 34 is a power supply device that applies a heat transfer amount to the heat transfer means 30 based on a control command from the control means 33.

Next, the operation will be described. As shown in FIG. 8, for example, a film-shaped substrate 2 is formed by one roll 1.
When carrying 9, the base material 29 is pulled with a certain tension. If this tension is uneven in the width direction of the base material 29, the base material 29 cannot move straight and meanders. When this meandering state becomes large, the base material 29 becomes the roll 1
Will be out of. Therefore, the meandering position detecting means 31
The meandering position is detected by the control means 33, and the detection signal from the meandering position detecting means 31 and the setting signal from the setting device 32 are compared by the control means 33 to adjust the heat transfer amount of the heat transfer means 30.
When a voltage is applied to the heat transfer means 30 arranged inside the roll 1, the inner surface of the roll 1 is heated by convection and heat transfer due to radiation accompanying heat generation by the Joule heat of the heat transfer means 30. Since the roll 1 is supported and rotated by the bearing mechanism, the inner surface of the roll 1 is uniformly heated in the circumferential direction. Thus, by heating only a part of the inner surface portion of the roll 1, for example, only the central portion of the roll 1, a difference in thermal expansion can be generated and the diameter of the central portion of the roll 1 can be increased. That is, the heat crown can be generated in the roll 1. As a result, when the base material 29 starts to separate from the roll 1, the base material 29 naturally passes through the center of the roll 1 due to the thermal crown of the roll 1, and the meandering of the base material 29 can be significantly reduced. Produce an effect. The meandering position detecting means 31 may be anything, for example, a plurality of infrared sensors may be arranged in the width direction of the base material 29 to detect whether or not the base material 29 has passed, and the same effect is obtained.

Example 5. A fifth embodiment of the present invention will be described with reference to FIG. In FIG. 10, 1 is a hollow roll, 1a is an inner surface of the roll 1, 1b is an outer surface of the roll 1, 2 and 3 are hollow first and second cylindrical bodies, 4 is a fixed shaft, 5 is an electromagnetic coil, 6 is an iron core, 6a is an iron end plate, 13 is a space, 14 is a heat transfer means, 15 is a holding means, and 35 is a plurality of heats arranged inside the hollow roll 1 in parallel to the axial direction and in the circumferential direction. It is a pipe.

When a voltage is applied to the heat transfer means 14 disposed in the space 13 formed between the inner surface 1a of the roll 1 and the outer peripheral surface of the electromagnetic coil 5, the inner surface 1a of the roll 1 transfers heat. It is heated by heat transfer by convection and radiation accompanying heat generation by the Joule heat of the means 14. Roll 1
Is supported by a bearing mechanism and is rotating, the roll 1
The inner surface portion 1a of is heated uniformly in the circumferential direction. Thereby, a difference in thermal expansion can be caused by heating only a part of the inner surface portion 1a of the roll 1, for example, the central portion of the roll 1, and the diameter of the central portion of the roll 1 can be increased. That is, a heat crown can be generated in the roll 1, and as a result, the thickness unevenness of the base material due to the bending of the roll 1 can be significantly reduced. Further, the heat pipe 35 arranged inside the roll 1 can further enhance the heat transfer in the roll 1, and the amount of heat crown of the roll 1 such that the base material has a predetermined thickness. The effect is that adjustment of can be realized much faster. In addition, even after the heat transfer means 14 forms a heat crown on the roll 1 and then the heat transfer by the heat transfer means 14 is stopped and the normal state of the roll 1 is restored, the heat pipe arranged inside the roll 1 is also used. By the action of 35,
There is an effect that the state of the roll 1 can be quickly returned to the normal state.

In the description of the fifth embodiment described above, the case where the above-mentioned first embodiment is improved to exert a unique effect is described. However, the above-mentioned second to fourth embodiments are improved so that the roll is rolled. Needless to say, if the heat transfer amount of 1 is adjustable, the thickness of the base material can be adjusted more quickly and accurately.

Example 6. The sixth embodiment of the present invention will be described with reference to FIG. In FIG. 11, 1 is a hollow roll, 1a is an inner surface portion of the roll 1, 1b is an outer surface portion of the roll 1, 2 and 3 are hollow first and second cylindrical bodies, 4 is a fixed shaft, 5 is an electromagnetic coil, Reference numeral 6 is an iron core, 6a is an iron core end plate, 13 is a space portion, 14 is a heat transfer means, and 15 is a holding means. Reference numeral 36 denotes a heat pipe which is provided inside the hollow roll 1 by being divided in the axial direction, and which has a central portion 36a and both end portions 36b,
And 36c.

By the way, when a voltage is applied to the heat transfer means 14 arranged in the space formed by the roll 1 and the electromagnetic coil 5, the inner surface 1a of the roll 1 is convected by the heat generated by the Joule heat of the heat transfer means 14. And is heated by heat transfer by radiation. Since the roll 1 is supported and rotated by the bearing mechanism, the inner surface portion 1a of the roll 1 is uniformly heated in the circumferential direction. Thereby, by heating only a part of the inner surface portion 1a of the roll, for example, the central portion of the roll 1, a difference in thermal expansion can be caused and the diameter of the central portion of the roll 1 can be increased. That is, a heat crown can be generated in the roll 1, and as a result, the thickness unevenness of the base material due to the bending of the roll 1 can be significantly reduced. Further, the heat pipe 36 is divided into a plurality of, for example, three heat pipes 36 in the axial direction of the roll 1, and a central portion 36a and both end portions 3
Since 6b and 36c are configured, the heating amount of the central portion of the roll 1 located in the central portion 36a of the heat pipe 36 can be changed more partially, and the thermal crown of the roll 1 can be adjusted. It can be done more reliably. Furthermore, by dividing the heat pipe 36 into a plurality of parts in the axial direction,
The heat crown of the roll 1 can be finely adjusted.

The concept of the sixth embodiment can be applied to the above-mentioned first to fifth embodiments, respectively, and the same effect can be obtained.

Example 7. Embodiment 7 of the present invention will be described with reference to FIG. In FIG. 12, 1 is a hollow roll, 1a is an inner surface portion of the roll 1, 1b is an outer surface portion of the roll 1, 2 and 3 are hollow first and second cylindrical bodies, 4 is a fixed shaft, 5 is an electromagnetic coil, Reference numeral 6 is an iron core, 6a is an iron core end plate, 13 is a space portion, 14 is a heat transfer means, and 15 is a holding means. Reference numeral 37 denotes a black body surface provided by subjecting the inner surface portion 1a of the roll 1 to a black body treatment, which is formed of, for example, a heat-resistant matte black body paint.

Next, the operation will be described. By providing the black body surface 37 on the inner surface portion 1 a of the roll 1, the heat transfer means 1
Radiant heat from Joule heat from 4 is significantly improved, and the heat of the heat transfer means 14 can be more effectively transferred to the inner surface portion 1a of the roll 1. Therefore, the heat transfer means 14
It is possible to realize the miniaturization of. Further, for example, the ratio of the black body surface 37 is increased in the central portion of the inner surface portion 1a of the roll 1 to increase the absorption rate, and the ratio of the black body surface 37 is decreased to the end side of the inner surface portion 1a of the roll 1 to reduce the absorption rate. When the heat transfer means 14 is made smaller, the heat of the heat transfer means 14 can be received more in the central part of the roll 1 and less in the end part of the roll 1, and the heat crown forming effect of the heat transfer means 14 can be further enhanced. it can.

The concept of the seventh embodiment can be applied to the above-described first to sixth embodiments, respectively, and similar effects can be obtained.

Example 8. Embodiment 8 of the present invention will be described with reference to FIG. In FIG. 13, 1 is a hollow roll, 1a is an inner surface portion of the roll 1, 1b is an outer surface portion of the roll 1, 2 and 3 are hollow first and second cylindrical bodies, 4 is a fixed shaft, 5 is an electromagnetic coil, Reference numeral 6 is an iron core, 6a is an iron core end plate, 13 is a space portion, 14 is a heat transfer means, 15 is a holding means, and 38 is a heat transfer means 1 provided between the outer peripheral portion of the electromagnetic coil 5 and the heat transfer means 14.
It is a reflector that reflects the heat of 4, such as an aluminum plate, a foil,
It is composed of a stainless steel plate.

Next, the operation will be described. Electromagnetic coil 5
Since the reflector 38 is provided between the outer peripheral portion of the heat transfer means 14 and the heat transfer means 14, the heat from the heat transfer means 14 toward the electromagnetic coil 5 is reflected by the reflector 38, and the reflected heat is the inner surface part of the roll 1. 1a
It goes to the side and is absorbed by the inner surface portion 1 a of the roll 1. In this way, the heat of the heat transfer means 14 is absorbed by the inner surface portion 1a of the roll 1, the heat crown of the roll 1 is efficiently formed, and the electromagnetic coil 5 is mostly heated by the heat transfer means 14. Since the heat resistance of the insulation of the electromagnetic coil 5 can be suppressed to a low level, a roll device having excellent life resistance can be obtained.

Further, the idea of the eighth embodiment can be applied to the above-described first to seventh embodiments, respectively, and the same effect can be obtained.

Example 9. The ninth embodiment of the present invention will be described with reference to FIG. In FIG. 14, 1 is a hollow roll, 1 a is the inner surface of the roll 1, and 1 b is the outer surface of the roll 1. 2 is a hollow first cylindrical body, 4 is a fixed shaft, 5 is an electromagnetic coil, 6 is an iron core, 6a is an iron core end plate, 13 is a space portion, 14
Is a heat transfer means, 15 is a holding means, 39 is a moving means for moving the heat transfer means 14 in the axial direction of the roll 1, and the figure is attached to the holding means 15 as an example. The piston portion 39a of the hydraulic device 39 is connected to the heat transfer means 14, and the heat transfer means 1 is operated by pressure oil operation of the drive system 39b of the hydraulic device 39.
4 is moved in the axial direction of the roll 1.

Next, the operation will be described. Since the heat transfer means 14 is moved in the axial direction of the roll 1 by the hydraulic device 39 which is a moving means, the central portion of the roll 1 is heated within a certain range by heat transfer by convection and radiation accompanying heat generation by Joule heat. In case of doing, the small heat transfer means 14
It suffices to move the heat transfer means 14 in the axial direction of the roll 1 by means of the hydraulic device 39 as described above, and a roll device excellent in economic efficiency can be obtained. In addition, the temperature of the roll 1 is measured by the temperature sensor as shown in the second embodiment, and the axial position of the heat transfer means 14 can be adjusted by the hydraulic device 39 so as to obtain a predetermined amount of heat crown. The thickness unevenness can be further reduced. Further, although the moving means 39 is described as being composed of a hydraulic device, it may be composed of an air pressure device, or may be composed of a combination of a motor, a gear device and the like, and the same effect is obtained. Further, the moving means 39 is the holding means 15
The moving means 39 may be mounted on a stationary part other than the holding means 15 in the above description.

Example 10. Embodiment 10 of the present invention is shown in FIG.
It will be described based on 5. In FIG. 15, 1 is a hollow roll, 1 a is an inner surface portion of the roll 1, and 1 b is an outer surface portion of the roll 1. 2 and 3 are hollow first and second cylindrical bodies, 4 is a fixed shaft, 5 is an electromagnetic coil, 6 is an iron core, 6a is an iron core end plate, 13
Is a space portion, 14 is a heat transfer means, 40 is a heat insulator provided on the outer peripheral portion of the electromagnetic coil 5, and the heat transfer means 14 is mounted and held on the outer peripheral portion of the heat insulator 40.

Next, the operation will be described. Electromagnetic coil 5
Since the heat insulator 40 is provided on the outer periphery of the heat insulator 40 and the heat transfer means 14 is arranged on the outer periphery of the heat insulator 40, the heat transferred from the heat transfer means 14 to the electromagnetic coil 5 is blocked by the heat insulator 40, and the heat transfer means 14 Almost all the heat generated by the heat is directed to the inner surface portion 1a of the roll 1, the heat crown of the roll 1 is efficiently formed, and the electromagnetic coil 5 is hardly heated by the heat transfer means 14, so that the electromagnetic coil 5 The heat resistance of insulation can also be suppressed to a low level, and a roll device with excellent life resistance can be obtained. Further, it is possible to obtain a roll device which has a simple structure and is excellent in economical efficiency without requiring the holding means as in the above-mentioned respective embodiments.

Example 11. In Examples 1 to 9 described above, the case where the heat transfer means 14 is held by the holding means 15 attached to the iron core end plate 6a has been described, but as shown in FIGS. 16 and 17, the iron core end plate 6a is shown. A notch 6b is formed in the holding means 41, one side 41a of the holding means 41 is attached to the fixed shaft 4, and the other side 41b of the holding means 41 is inserted through the notch 6b formed in the core end plate 6a to transfer heat. The heat transfer means 14 may be held by extending to the 14 side, and the same effect is obtained.

Example 12 In each of the above-described embodiments, the heat transfer means 14 is formed in a cylindrical shape, and the opposite end portions 1 are formed.
4a and 14b are respectively provided, and an inlet lead terminal 14c and an outlet lead terminal 14d are provided in the vicinity of either one of the ends to perform only heat transfer by convection and radiation accompanying heat generation by Joule heat. However, as shown in FIGS. 18 to 20, it is formed in a ring shape and has opposite end portions 42a and 42b, respectively, and the inlet lead terminal 42c and the outlet lead terminal 42 are provided near either one of the end portions.
d is provided to configure the heat transfer means 42 so as to perform only heat transfer by convection and radiation accompanying heat generation by Joule heat,
A plurality of heat transfer means 42 may be arranged, and the same effect is obtained. And as a holding structure of each heat transfer means 42,
The holding means 43 holds the heat transfer means 42 together. As described above, by constructing the heat transfer means 42 from a cylindrical shape to a ring shape, it is possible to reduce the heater capacity per unit and improve the commonality as a heater. The cost can be reduced by reducing the number of types.

Example 13 In the twelfth embodiment described above, a case has been described in which the heat transfer means 42 are held together by being sandwiched by the holding means 43, but as shown in FIG. 21, a plurality of heat transfer means 42 are divided and held. The means 43 may be divided and held. To attach the holding means 43 to the stationary portion in this case, as shown in FIG. 21, a space is provided between the electromagnetic coils 5 so that the holding means 43 can be attached to the iron core 6, and the iron core 6 portion in the space is attached. The holding means 44 may be attached to hold the heat transfer means 42.

Example 14 In the twelfth embodiment described above, the case where each heat transfer means 42 is held by being sandwiched by the holding means 43 is described. However, as shown in FIG. 22, a plurality of heat transfer means 42 are separately held. You may make it hold | maintain by 45. In this case, the holding means 45 is attached to the stationary portion as shown in FIG. 22 so that the holding means 45 can be attached to the iron core 6.
Holding means 45 is provided on the iron core 6 part of the interval with an interval.
May be attached to hold the heat transfer means 42.

Example 15 In the above-described fifteenth embodiment, the case where each heat transfer means 42 is held by being sandwiched by the holding means 43 is described. However, as shown in FIG. Alternatively, the pair may be held by the holding pieces 46a and 46b of the holding means 46, and may be held by the holding column 46c of the holding means 46. The attachment of the holding means 46 to the stationary portion in this case is as shown in FIG.
As shown in FIG. 3, the holding column 46c of the holding means 46 is
Space between the electromagnetic coils 5 so that they can be attached to
The heat transfer means 42 may be held by attaching the holding column 46c of the holding means 46 to the iron core 6 portion of the space.

Example 16 In Examples 12 to 15 described above, a case where a plurality of ring-shaped heat transfer means 42 are arranged in the axial direction is shown.
By partially controlling the temperature distribution, the temperature distribution in the axial direction of the roll can be finely adjusted, and the heat crown of the roll can be freely formed.

The concept of the sixteenth embodiment can be applied to the above-described first to eleventh embodiments, respectively, and similar effects can be obtained.

Example 17 Embodiment 17 of this invention is shown in FIG.
4 will be described. In FIG. 24, 47 is arranged in the space 13 formed between the inner surface 1a of the roll 1 and the outer peripheral surface of the electromagnetic coil 5, and is composed of a plurality of transmission members arranged in parallel with the axial direction and in the circumferential direction. It is a means of heat. Each of the heat transfer means 47 is provided with an inlet lead terminal 47a and an outlet lead terminal 47b at one end thereof, and is configured to perform only convection associated with heat generation by Joule heat and heat transfer by radiation.

Next, the operation will be described. Heat transfer means 47
Since a plurality of heat transfer means 47 are provided in the circumferential direction, the heat transfer amount of the heat transfer means 47 can be adjusted so as to obtain a desired heat crown by adjusting the number of heat transfer means 47. it can. As the heat transfer amount adjusting means of the heat transfer means 47, the heat transfer means 47 of a number corresponding to the heat crown of the roll device is arranged, or a large number of heat transfer means 47 is formed in consideration of the formation of several patterns of heat crowns. You may make it arrange | position the heat transfer means 47, and may adjust the number of the heat transfer means 47 to energize.

The concept of the seventeenth embodiment can be applied to the above-described first to eleventh embodiments, respectively, and the same effect can be obtained.

Example 18. Embodiment 18 of this invention is shown in FIG.
It will be described based on 5. In FIG. 25, 1 is a hollow roll, 1 a is an inner surface portion of the roll 1, and 1 b is an outer surface portion of the roll 1. 2 and 3 are hollow first and second cylindrical bodies, 4 is a fixed shaft, 5 is an electromagnetic coil, 6 is an iron core, 6a is an iron core end plate, 13
Is a space portion formed between the inner surface portion 1a of the roll 1 and the outer peripheral surface portion of the electromagnetic coil 5, and a plurality of space portions 48 are arranged in the space portion 13.
The end side of the heat transfer means is roughly arranged, 48a is a dense part of the heat transfer means 48, and 48b and 48c are rough parts of the heat transfer means 48. Reference numeral 49 is a holding means for holding the heat transfer means 48, and as an example, the drawing is attached to the iron core end plate 6a to hold the entire heat transfer means 48.

Next, the operation will be described. Heat transfer means 48
Since the central portion of the roll 1 is the dense portion 48a and both end portions are the rough portions 48b and 48c, the central portion of the roll 1 can be heated more and the thermal crown formation of the roll 1 can be performed more effectively. Further, by appropriately combining the ratios of the dense portion 48a and the rough portions 48b, 48c, the outer peripheral surface portion 1 of the roll 1
The shape of b can be adapted to the deflection of the roll 1.

The concept of the eighteenth embodiment can be applied to the above-described first to eleventh embodiments, respectively, and the same effect can be obtained.

[0073]

As described above, the present invention provides heat transfer means different from the induction heating means for heating the roll from the inner surface in the space formed between the inner surface of the roll and the outer peripheral surface of the electromagnetic coil. It is possible to freely heat any position of the roll by heat transfer without interfering with the magnetic circuit of the induction heating means provided inside the roll, change the temperature distribution in the axial direction of the roll, and change the outer diameter of the roll in the axial direction. It is possible to obtain a roll device that forms a thermal crown by changing to

Further, the detection signal of the temperature sensor for detecting the temperature at an arbitrary position of the hollow roll is inputted, the temperature difference is outputted by the temperature detecting means, and the signal from the temperature detecting means is inputted and preset. The magnetic circuit of the induction heating means provided inside the roll by adjusting the amount of heat transfer of the heat transfer means provided in the space formed between the inner surface of the roll and the outer peripheral surface of the electromagnetic coil in comparison with the temperature It is possible to obtain a roll device capable of forming a thermal crown more accurately by freely changing the temperature distribution in the axial direction of the roll by heat transfer without interfering with each other and changing the outer diameter of the roll in the axial direction.

Further, the thickness of the base material is detected, and the preset value of the thickness of the base material is compared with the detected value to detect the thickness between the inner surface of the one-side roll and the outer peripheral surface of the electromagnetic coil. By adjusting the amount of heat transfer of the heat transfer means provided in the formed space and transferring heat without interfering with the magnetic circuit of the induction heating means provided inside the roll, the temperature distribution in the axial direction of the roll can be freely changed. It is possible to obtain a roll device in which the outer diameter is changed in the axial direction to form a thermal crown and the thickness of the base material in the width direction can be made uniform.

A space formed between the inner surface of the roll and the outer surface of the electromagnetic coil by detecting the meandering of the base material and comparing the preset value of the position of the base material with the detected value. The heat transfer amount of the heat transfer means provided in the section is adjusted to freely change the temperature distribution in the axial direction of the roll by heat transfer without interfering with the magnetic circuit of the induction heating means provided inside the roll, and the roll outer diameter can be adjusted. It is possible to obtain a roll device capable of significantly reducing the meandering of the substrate by forming the thermal crown by changing the axial direction.

Further, a plurality of heat pipes are arranged inside the hollow roll in parallel with the axial direction and in the circumferential direction to rapidly change the temperature distribution in the axial direction of the roll to form a heat crown. It is possible to obtain a roll device in which the amount of crown can be adjusted much faster.

A heat crown is formed by partially changing the temperature of the roll by a plurality of heat pipes arranged in parallel in the axial direction and in the circumferential direction and divided in the axial direction inside the hollow roll, It is possible to obtain a roll device capable of extremely finely adjusting the amount of thermal crown.

Further, since the inner surface portion of the roll is subjected to the black body treatment, the absorption of the radiant heat from the heat transfer means is remarkably improved, and the roll device for forming the heat crown more efficiently can be obtained.

Further, by the reflector provided between the outer peripheral surface of the electromagnetic coil and the heat transfer means, heat directed from the heat transfer means to the electromagnetic coil can be reflected to efficiently transfer the heat to the inner surface of the roll. Thus, the heat crown of the roll can be efficiently formed, and the roll device having excellent durability of the electromagnetic coil can be obtained.

Further, the heat transfer means provided in the space formed between the inner surface of the roll and the outer peripheral surface of the electromagnetic coil is moved in the axial direction by the moving means, whereby induction heating provided inside the roll is achieved. It is possible to freely heat any position of the roll by heat transfer without interfering with the magnetic circuit of the means, changing the temperature distribution in the axial direction of the roll and changing the outer diameter of the roll in the axial direction to form a heat crown. Since this is done, it is possible to obtain a roll device that can be used as a small-sized heat transfer means and is excellent in economic efficiency.

By disposing the heat transfer means on the outer peripheral side of the heat insulator provided on the outer peripheral portion of the electromagnetic coil, the heat transferred from the heat transfer means to the electromagnetic coil is significantly reduced, and the heat is efficiently transferred to the inner surface of the roll. It is possible to obtain a roll device that can be efficiently transmitted and a heat crown can be formed efficiently, and that the life of the electromagnetic coil is excellent, the structure is simple, and the cost is excellent.

Further, by disposing a plurality of heat transfer means in the axial direction, the temperature distribution in the axial direction of the roll is changed and the outer diameter of the roll is changed to form the heat crown. A roll device that can be downsized can be obtained.

Further, by partially controlling a plurality of heat transfer means arranged in the axial direction, it is possible to obtain a roll device capable of freely forming the thermal crown of the roll by finely adjusting the temperature distribution in the axial direction of the roll. You can

Further, by disposing a plurality of heat transfer means in parallel to the axial direction and in the circumferential direction and adjusting the number of heat transfer of the heat transfer means, the temperature distribution in the axial direction of the roll is changed, and the outer diameter of the roll is changed. It is possible to obtain a roll device in which the heat crown can be adjusted by changing

Further, since the central portion side of the roll of the heat transfer means is densely arranged and the end portion side of the roll of the heat transfer means is roughly arranged, the heat transfer amount on the central portion side of the roll is further increased. Thus, it is possible to obtain a roll device capable of more effectively forming the heat crown of the roll.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG. 1 according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing a heat transfer means in Embodiment 1 of the present invention.

FIG. 4 is a side view showing an operating state of the first embodiment of the present invention.

FIG. 5 is a sectional view showing a second embodiment of the present invention.

FIG. 6 is a side view showing a second embodiment of the present invention.

FIG. 7 is a side view showing a third embodiment of the present invention.

FIG. 8 is a perspective view showing a fourth embodiment of the present invention.

FIG. 9 is a side view showing a fourth embodiment of the present invention.

FIG. 10 is a sectional view showing Embodiment 5 of the present invention.

FIG. 11 is a sectional view showing Embodiment 6 of the present invention.

FIG. 12 is a sectional view showing Embodiment 7 of the present invention.

FIG. 13 is a sectional view showing an eighth embodiment of the present invention.

FIG. 14 is a cross-sectional view of essential parts showing Embodiment 9 of the present invention.

FIG. 15 is a sectional view showing Embodiment 10 of the present invention.

FIG. 16 is a sectional view of an essential part showing an eleventh embodiment of the present invention.

FIG. 17 is a BB of FIG. 16 showing an eleventh embodiment of the present invention.
It is sectional drawing in a line.

FIG. 18 is a perspective view showing Embodiment 12 of the present invention.

FIG. 19 is a main-portion plan view showing Embodiment 12 of the present invention.

FIG. 20 is a cross-sectional view of essential parts showing Embodiment 12 of the present invention.

FIG. 21 is a cross-sectional view of essential parts showing Embodiment 13 of the present invention.

FIG. 22 is a cross-sectional view of essential parts showing Embodiment 14 of the present invention.

FIG. 23 is a cross-sectional view of essential parts showing Embodiment 15 of the present invention.

FIG. 24 is a perspective view showing a heat transfer means of Embodiment 17 of the present invention.

FIG. 25 is a sectional view showing Embodiment 18 of the present invention.

FIG. 26 is a cross-sectional view showing a conventional roll device.

FIG. 27 is a side view showing a conventional roll device.

FIG. 28 is a perspective view showing a conventional roll device.

FIG. 29 is a perspective view showing a conventional roll device.

FIG. 30 is a perspective view showing a conventional roll device.

FIG. 31 is a front view of a conventional roll device.

FIG. 32 is a front view of a conventional roll device.

FIG. 33 is a front view of a conventional roll device.

FIG. 34 is a front view of a conventional roll device.

FIG. 35 is a cross-sectional view showing a conventional roll device.

[Explanation of symbols]

 1 Roll 2 1st cylinder 3 2nd cylinder 4 Fixed shaft 5 Electromagnetic coil 14 Heat transfer means 15 Holding means 16 Temperature sensor 17 Temperature detection means 19 Control means 21 One side roll 22 Other side roll 23 Base material 24 Heat transfer means 25 Thickness Detecting Means 27 Control Means 29 Base Material 30 Heat Transfer Means 31 Meandering Position Detecting Means 33 Control Means 35 Heat Pipes 36 Heat Pipes 37 Blackbody Surfaces 38 Reflectors 39 Moving Means 40 Insulators 41 Holding Means 42 Heat Transfer Means 43 Holding Means 44 Holding Means 45 Holding Means 46 Holding Means 47 Heat Transfer Means 48 Heat Transfer Means 49 Holding Means

Claims (14)

[Claims] 1. A roll which is hollow and has hollow cylinders integrally formed on both sides of the roll, an electromagnetic coil arranged concentrically inside the roll, an inner surface of the roll and the electromagnetic coil. A roll comprising: a heat transfer means arranged in a space formed between the coil and an outer peripheral surface part; and a holding means attached to a stationary part inside the roll to hold the heat transfer means. apparatus. 2. A roll, which is hollow and in which hollow cylinders that are integral with each other on both sides are continuously provided, an electromagnetic coil concentrically arranged inside the roll, an inner surface portion of the roll and the electromagnetic A heat transfer means arranged in a space formed between the outer peripheral surface of the coil, a holding means attached to a stationary part inside the roll to hold the heat transfer means, and a plurality of arbitrary positions of the roll. A temperature sensor for detecting a temperature, a temperature detection means for inputting a detection signal of the temperature sensor and outputting a temperature difference between the temperature sensor and a signal from the temperature detection means,
A roll device provided with a control means for adjusting the amount of heat transfer of the heat transfer means by comparing with a preset temperature. 3. A base material is disposed between one side roll, which is hollow and has a pair of integrally formed hollow cylinders on both sides, and the one side roll and the one side roll. The other side roll to be inserted, the electromagnetic coil concentrically arranged inside at least one of the rolls, a space formed between the inner surface of the roll and the outer peripheral surface of the electromagnetic coil From the thickness detecting means, the holding means for holding the heat transferring means attached to the stationary portion inside the roll, the thickness detecting means for detecting the thickness of the base material, Is input, the thickness of the heat transfer means is compared with a preset thickness, and the control means adjusts the amount of heat transfer of the heat transfer means. 4. A roll which is hollow and has hollow cylinders integrally formed on both sides of the roll, an electromagnetic coil concentrically arranged inside the roll, an inner surface of the roll and the electromagnetic coil. Heat transfer means arranged in a space formed between the outer peripheral surface of the coil, holding means for holding the heat transfer means attached to a stationary portion inside the roll, and a base material heated by the roll And a meandering position detecting means for detecting the meandering of the base material, and a signal inputted from the meandering position detecting means, and comparing the preset meandering position to control the heat transfer amount of the heat transfer means. And a roll device. 5. The roll device according to each of the above claims, wherein a plurality of heat pipes are arranged inside the hollow roll in parallel to the axial direction and in the circumferential direction. 6. The roll device according to claim 5, wherein the heat pipes arranged in the axial direction are divided and arranged in the axial direction. 7. A roll device according to each of the above claims, characterized in that the inner surface of the roll is subjected to a blackbody treatment. 8. A roll device according to each of the above claims, wherein a reflector for reflecting the heat of the heat transfer means is provided between the outer peripheral portion of the electromagnetic coil and the heat transfer means. 9. A roll, which is hollow and in which hollow cylinders that are integral with each other on both sides are continuously provided, an electromagnetic coil concentrically arranged inside the roll, an inner surface portion of the roll and the electromagnetic The heat transfer means arranged in the space formed between the outer peripheral surface of the coil, the holding means attached to the stationary part inside the roll for holding the heat transfer means, and the heat transfer means for the roll. A roll device comprising: a moving unit that moves in the axial direction. 10. A roll, which is hollow and in which hollow cylinders that are integral with each other on both sides are continuously provided, an electromagnetic coil concentrically arranged inside the roll, and an outer peripheral portion of the electromagnetic coil. And a heat transfer means arranged on the outer peripheral side of the heat insulating body. 11. A roll device according to each of the above claims, wherein a plurality of heat transfer means are arranged in the axial direction. 12. The roll device according to claim 11, wherein a plurality of heat transfer means are partially controlled. 13. A roll device according to any one of claims 1 to 10, wherein a plurality of heat transfer means are arranged parallel to the axial direction and circumferentially. 14. A roll, which is hollow and in which hollow cylinders integrally formed on both sides of the roll are continuously provided, an electromagnetic coil concentrically arranged inside the roll, an inner surface portion of the roll and the electromagnetic coil. A plurality of heat transfer means arranged in a space formed between the outer peripheral surface of the coil, the central side of the roll is densely arranged, and the end side of the roll is roughly arranged, and the inside of the roll is stationary. And a holding unit that is attached to the section to hold the heat transfer unit.