TW201930045A - Roll and device of hot-roll embossing and method for hot roll embossing can perform high temperature embossing and low temperature demolding on a single roll - Google Patents

Abstract

A roll and a device of the hot roll embossing and a method for hot roll embossing are used to hot-roll emboss a surface microstructure on a polymer film body. The roll of the hot roll embossing comprises: a fixed cylinder body provided with a heat insulating structure extending along the axial direction to partition the fixed cylinder body from a cool block of one part of the side curved surface and a hot block of the other part of the side curved surface, wherein the cool block has a cooing unit and the hot block has a heating unit; and a movable ring body having the microstructure on a peripheral surface thereof is rotatably sleeved on the outside of the fixed cylinder body, wherein a ring segment of the movable ring body that contacts the side arc surface portion of the cool block is defined as a low temperature ring segment, and a ring segment of the movable ring body that contacts the other side arc surface portion of the hot block is defined as a high temperature ring segment; and a heating unit is corresponding to and used to heat the high temperature ring segment.

Description

Hot rolling drum, device and method of hot rolling

The invention relates to a hot rolling drum, a device and a hot rolling method, in particular to a hot rolling drum, a device and a hot rolling method for realizing high temperature imprinting and low temperature demolding in a single drum main body.

Recently, plastic components with surface microstructures have become more and more widely used, such as various optical films such as diffusion films and ruthenium films commonly used in the photovoltaic industry, and many processes have been developed for the fabrication of surface microstructures of plastic components. Improve. At present, the process of surface micro-structured plastic components is mainly based on plastic molding technology, and commonly used are Micro Injection Molding, Hot Embossing and Rolling Embossing. The high degree of automation and maturity of injection molding is used for large-scale and rapid production of complex micro-parts. The principle of roller imprinting and hot-embossing is similar. It is generally used for surface microstructure transfer of large-area plastic film or flat plate, but Since the roller embossing can quickly and continuously transfer the microstructure to the plastic surface, the production speed is faster than the hot embossing and there is no length limitation, and there is no problem that the embossing depth may be uneven even if there is no large-area hot embossing. There is no large-area embossing machine and large-area embossing die required for large-area hot embossing, which has lower equipment cost and higher production efficiency.

And the related prior case of the forming roller structure for hot roll printing, such as the uniform warm roller device disclosed in the Republic of China New Patent Publication No. 342772, which is provided with an impeller inside a hollow roller. The inside of the roller is provided with an electric heating tube and a thermocouple. The inside of the roller can be filled with a liquid medium having good thermal conductivity. When the electric heating tube heats the liquid medium and the roller is driven to rotate, the blade of the impeller can fully agitate the liquid due to gravity. And to achieve the uniform temperature effect, and then through the heat conduction effect, the temperature of the liquid is transmitted to the surface of the roller to reach the average temperature, and the temperature detected by the thermocouple can be fed back, so that the internal temperature can reach the set range, thereby increasing the temperature. The precision of the control; and the two sides of the roller are provided with insulation means for separating the two insulation chambers, so that the temperature uniformity of the roller is easy to control; and a cooling pipeline can be arranged inside the roller to make the roller cool down.

However, when the hot roll printing roller embosses the microstructure on the plastic film, in addition to heating the plastic film to above the glass transition temperature, the microstructure is formed, the rolling speed is increased, the roller pressure is reduced, and the roller pressure is avoided. In addition to the purpose of damage and deformation of the roller microstructure, when the roller is separated from the plastic diaphragm, the temperature of the roller is also required to be lowered to prevent the softened plastic microstructure from being deformed due to insufficient strength, and even the problem of sticking to the roller microstructure. In the above case, the electric heating tube and the cooling pipeline cannot be heated in the embossing process, and the plastic diaphragm is heated during the embossing, and the plastic diaphragm is cooled during demolding. There are still deficiencies that need to be improved.

Accordingly, in order to improve the above-mentioned deficiencies, the present inventors have made efforts to study and improve, and have proposed a hot rolling drum, a device and a hot rolling method of the present invention to thermally roll a microstructure of a diaphragm body. The hot-rolling drum comprises: a fixed cylinder body, and a heat-insulating structure extending along the axial direction, the heat-insulating structure partitioning the fixed cylinder body into a cold zone containing only a part of the side curved surface a cooling unit is disposed in the cold block; the movable ring body is provided with the microstructure on the outer surface thereof, and the movable ring body is rotatably sleeved on the outer surface of the fixed cylinder and rotates relative to the fixed cylinder or When not rotating, the circle segment defining the active ring body and the side arc surface of the aforementioned portion is a low temperature ring segment, and the circle segment defining the active ring body and the aforementioned partial side arc surface at that time is a high temperature ring segment; And a heating unit corresponding to the high temperature coil section for heating the high temperature coil section.

The hot rolling device comprises: a fixed cylinder body, and a heat insulating structure extending along the axial direction, the heat insulating structure separating the fixed cylinder body and only one cold part including a part of the side curved surface a cooling unit is disposed in the cold block; the movable ring body is provided with the microstructure on the outer surface thereof, and the movable ring body is rotatably sleeved on the outer surface of the fixed cylinder and rotates relative to the fixed cylinder or When not rotating, the circle segment defining the active ring body and the side arc surface of the aforementioned portion is a low temperature ring segment, and the circle segment defining the active ring body and the aforementioned partial side arc surface at that time is a high temperature ring segment; a driving mechanism for directly or indirectly driving the movable ring body to rotate relative to the fixed cylinder body, and maintaining the movable ring body in contact with the partial side arc surface; and a heating unit corresponding to the high temperature ring segment for Heating the high temperature coil segment; thereby, the diaphragm body is pressed against the movable ring body and rotated as the movable ring body rotates, so that the movable ring body maintains the high temperature ring segment at a higher temperature Body heat rolls out the microstructure and lowers the temperature The low temperature and the diaphragm ring segment from the body.

Further, further comprising a pressure roller directly or indirectly pressed against the portion of the diaphragm body that is in contact with the movable ring body, for pressing and pressing the diaphragm body to the movable ring body Increase the pressure of the imprint and adjust the pressure of the pressurization pressure.

Further, the heat insulating structure is a heat insulating sheet body, and the fixing cylinder is partitioned from the cold block and a hot block, wherein the heating block is provided with the heating unit, and the movable ring body is opposite to the fixed column When the body rotates, the movable ring body is kept in contact with another portion of the side arc surface corresponding to the hot block.

Further, the heating unit is an electric heating tube, and the cooling unit is a coolant line.

Further, the heat insulating structure is a hollowed out part, and the movable ring body is a conductive material, and the ring segment adjacent to the hollowed out part is the high temperature ring segment, and the heating unit is corresponding to the interval of the high temperature circle segment. Magnetic field generating unit.

Further, the magnetic field generating unit includes an electromagnetic induction coil.

Further, the magnetic field generating unit further comprises a magnetic shield disposed at least between two adjacent ones of the centers.

Further, the diaphragm body is provided by a feeding end, and the diaphragm body is collected by a receiving end, and the driving mechanism comprises a driving belt, a driving wheel and an idler wheel. a tension adjusting wheel, the driving belt is wound around the driving wheel, the idler wheel and the outer circumference of the tension adjusting wheel, and the driving belt defines a first segment and a second segment between the driving wheel and the idler wheel, the first The segment is configured to press the diaphragm body to press against the movable ring body, and the second segment is provided with the tension adjusting wheel for adjusting the tension of the driving belt, wherein the driving wheel is used to drive the driving belt to rotate, and indirectly The diaphragm body and the movable ring body are rotated relative to the fixed cylinder.

The method of hot rolling comprises: extending a thermal insulation structure along an axial direction of a fixed cylinder to partition the fixed cylinder from a cold block, the cold block only including the fixing a portion of the outer peripheral surface of the cylinder, and a cooling unit for cooling the cold block is disposed in the cold block; a movable ring body is rotatably disposed outside the fixed column, and the outer peripheral surface of the movable ring body is provided The microstructure, when rotating or not rotating relative to the fixed cylinder, defines a ring segment in which the movable ring body contacts the side arc surface of the portion at the time is a low temperature ring segment, and defines the active ring body and the aforementioned partial side arc The loop that is not in contact with the surface is a high temperature loop section; the high temperature loop section is heated by a heating unit; and the diaphragm body is pressed against the movable ring body and rotated as the movable ring body rotates, thereby making the activity The ring body keeps the film body hot-rolled out of the microstructure at a higher temperature, and the film body is embossed at a lower temperature of the low temperature ring segment, so that the film body is at a lower temperature. Get out of the way.

According to the above technical features, the following effects can be achieved:

1. The process of heating rolling and cooling demoulding can be completed by a single fixed shaft body and a single movable ring body, and the microstructure is easy to form, the rolling speed is increased, and the pressure of the movable ring body is reduced to avoid damage deformation. Moreover, the microstructure of the membrane body can be prevented from sticking and softening deformation when demolding.

2. It is only necessary to adjust the ratio of the contact of the diaphragm body to the high temperature coil section and the low temperature coil section, the temperature of the hot block and the cold block, and adjust the position of the pressure roller indirectly pressing the diaphragm body. Control the temperature during imprinting or demolding for ease of operation.

3. When the heating unit uses the electric heating tube, the hot block can be uniformly heated, and the high temperature ring segment is uniformly heated.

4. When the heating unit is a magnetic field generating unit, the thermal energy is directly generated on the peripheral surface of the high temperature coil section (32a), which is convenient for rapid hot rolling and improves the processing speed of the hot rolling stamping.

5. When the heating unit is a magnetic field generating unit, the arrangement of the magnetic shielding member can effectively reduce the mutual exclusion and interference of the magnetic field caused by the opposite direction of the coil current, thereby making the alternating magnetic field more uniform and improving the efficiency of induction heating. .

6. The cold block or the hot block is fixed, facilitating installation of the cooling water pipe or the electric heating pipe, and reducing the probability of leakage of the cooling water pipe.

In combination with the above technical features, the main effects of the hot rolled drum, apparatus and hot rolling method of the present invention will be apparent from the following examples.

Please refer to the first figure and the second figure. The second figure discloses a hot rolling device (1000) of the first embodiment for hot rolling a diaphragm body (A). Structure (S), wherein the diaphragm body (A) is continuously supplied from a supply end (A1), and the diaphragm body (A) is collected by a receiving end (A2) after hot rolling, The hot rolling device (1000) comprises a fixed cylinder (1), a heating unit (2), a movable ring body (3), a driving mechanism (4) and a pressing roller (5), wherein:

The fixing cylinder (1) has a heat insulating structure (11) extending along the axial direction, and the heat insulating structure (11) is a heat insulating sheet body, and in the first embodiment, the fixing cylinder body (1) A cold block (12) and a hot block (13) are separated. Further, the cold block (12) includes a partial side arc surface (121) of the fixed cylinder (1), and the hot block (13) includes another partial side arc surface of the fixed cylinder (1) (131) ). A cooling unit (122) is disposed in the cold block (12) for cooling the cold block (12), and the heating block (2) is disposed in the hot block (13) for heating the hot zone Piece. In the first embodiment, the cooling unit (12) is a cooling water pipe, and the heating unit (13) is an electric heating pipe.

The peripheral surface of the movable ring body (3) is provided with the microstructure (S) for hot press transfer, and the movable ring body (3) is rotatably sleeved outside the fixed cylinder (1), and the activity When the ring body (3) rotates or does not rotate relative to the fixed cylinder (1), the active ring body (3) and the aforementioned partial side arc surface (121) [ie, the side arc surface corresponding to the cold block are defined). (121)] the contact ring segment is a low temperature ring segment (31), and it is defined that the movable ring body (3) is in contact with the aforementioned partial side arc surface (121) and is in contact with the other portion of the side arc surface (131). The segment is a high temperature segment (32). It can be seen from the above definition that the low temperature ring segment (31) and the high temperature coil segment (32) referred to herein are not a ring segment of a fixed position, but whether it contacts the aforementioned partial side arc surface (121) and the foregoing The other part depends on the side curved surface (131).

The drive mechanism (4) includes a drive belt (41), a drive wheel (42), an idler pulley (43) and a force adjustment wheel (44). Wherein, the transmission belt (41) is wound around the driving wheel (42), the idler wheel (43) and the outer circumference of the tension adjusting wheel (44), the driving belt (41) is disposed on the driving wheel (42) and the idler wheel A first segment (411) and a second segment (412) are defined between (43) for limiting the diaphragm body (A) to the movable ring body (3) The second section (412) is coupled to the tension adjusting wheel (44) for adjusting the tension of the transmission belt (41). The driving wheel (42) is used to drive the transmission belt (41) to rotate. By the way, the driving wheel (42) indirectly drives the diaphragm body (A) and the movable ring body (3) to rotate relative to the fixed cylinder body (1), and the moving ring body (3) and the foregoing portion are interposed therebetween. The side arc surface (121) and the other portion of the side arc surface (131) remain in contact.

The pressing roller (5) corresponds to a portion where the diaphragm body (A) is in contact with the movable ring body (3), and the pressing roller (5) is indirectly pressed against the transmission belt (41), and indirectly The diaphragm body (A) is pressed against the movable ring body (3), and the pressure of the pressure roller (5) by pressurization is adjusted.

Referring to the first figure, when the driving wheel (42) drives the driving belt (41) to drive in the direction of the arrow as shown in the first figure, the driving belt (41) drives the driving belt (41). The diaphragm body (A) and the movable ring body (3) are rotated in the direction of the arrow shown in the first figure. Wherein, the heating unit (2) heats the hot block (13) to raise the temperature of the hot block, and the cooling unit (122) cools the cold block (12) to keep the cold block at a low temperature, so that the activity When the ring body (3) rotates, the high temperature ring segment (32) of the movable ring body (3) is heated by the hot block (13) to heat up, and when the original high temperature ring segment (32) changes with rotation After the low temperature loop section (31), it will be cooled by the cold block (12) to gradually cool down, and will not be heated again to be reheated until it is turned again to become the high temperature loop section (32). Therefore, in the hot rolling process, the diaphragm body (A) can sequentially distinguish between normal temperature, preheating, pressurization, heat preservation and cooling, and the details are as follows:

At normal temperature, the diaphragm body (A) is in contact with the movable ring body (3) at normal temperature. When preheating, the diaphragm body (A) enters the high temperature coil section (32) in a tangential direction and is heated, and gradually heats up to a target temperature of hot rolling [generally the diaphragm body (A) The glass transition temperature is above. However, at this time, the diaphragm body (A) is not pressed by the pressurizing roller (5), but can be softened only by preheating. During pressurization, the pressure roller (5) presses the diaphragm body (A) against the high temperature coil section (32) through the transmission belt (41), so that the diaphragm body (A) is The movable ring body (3) is hot rolled to print the microstructure (S). During the heat preservation, the diaphragm body (A) is not pressed by the pressure of the pressure roller (5), and starts to enter the low temperature coil section (31), and at this time, the diaphragm body (A) is simultaneously The high temperature coil section (32) and the low temperature coil section (31) are contacted so that the diaphragm body (A) does not continue to heat up. When cooled, the diaphragm body (A) is completely in contact with the low temperature coil section (31), and is gradually cooled, and preferably, the low temperature coil section is cooled to cool the diaphragm body (A) to a proper temperature. After the mold release temperature (for example, 80 degrees Celsius) or less, the diaphragm body (A) is detached from the movable ring body (3), and the mold release is completed.

Therefore, as is apparent from the above description, the first embodiment ensures that the movable ring body (3) maintains the high temperature ring section (32) at a relatively high temperature, and heats the diaphragm body (A) to the hot rolling pressure. The target temperature is hot-rolled, and the movable ring body (3) is kept at a lower temperature, and the low temperature ring segment (31) is demolded from the diaphragm body (A), whereby the first embodiment can be The single fixed shaft body (1) and the single movable ring body (3) complete the process of heating rolling and cooling demolding, which can facilitate the formation of the microstructure, increase the rolling speed and reduce the movable ring body (3) The pressure is prevented from damaging the deformation, and the microstructure (S) of the diaphragm body (A) is prevented from sticking to the microstructure of the surface of the movable ring body (3) and softening deformation when demolding. Wherein, it is only necessary to adjust the temperature of the cold block (12) and the hot block (13), the ratio of the diaphragm body (A) to the high temperature ring segment (32) and the low temperature ring segment, and adjust the pressurization The roller (5) is indirectly pressed against the position of the diaphragm body (A), so that the temperature at the time of imprinting or demolding can be controlled, which is advantageous for operation.

The heating unit (2) of the first embodiment uses an electric heating tube to uniformly heat the hot block (13) and uniformly heat the high temperature ring section (32). Moreover, the cold block and the hot block are fixed, facilitating installation of the electric heating pipe and the cooling water pipe, and reducing the probability of leakage of the cooling water pipe.

Referring to the second figure, a hot rolling device (1000a) according to a second embodiment is substantially the same as the first embodiment except that the heat insulating structure (11a) is a hollowed out portion. And only the fixed shaft body (1a) is separated from the cold block (12a), and the movable ring body (3a) needs to be a magnetic conductive material, and the high temperature ring segment (32a) is the movable ring body ( 3a) a ring segment adjacent to the hollowed out portion, and the heating unit (2a) is a magnetic field generating unit corresponding to the high temperature ring segment (32a), the cooling block (12a) is provided with the cooling Unit (122a).

Referring to the third and fourth figures, in the second embodiment, the heating unit (2) comprises an electromagnetic induction coil (21a) and a magnetic shield (22a). Wherein, the electromagnetic induction coil (21a) is supplied with alternating current to generate an alternating magnetic field, and the electromagnetic coil (21a) is wound in a loop shape as shown in FIG. 5 so that two of the centers are adjacent The instantaneous current direction of the wires is opposite, so that the instantaneous current directions of the remaining two adjacent wires are the same. According to the proximity effect of the adjacent conductors, the opposite current directions of the two adjacent wires in the center generate mutually exclusive magnetic fields to reduce the heating efficiency, thereby providing the magnetic shield (22a) to reduce the influence of the mutual exclusion of the magnetic field. Further, the magnetic shield (22a) is a ferrite magnet, and is disposed between two adjacent wires of the center, and is disposed on the periphery of the electromagnetic coil (21a), and the effect thereof is as follows:

Referring to the fourth and fifth figures, and referring to the sixth and seventh figures, the sixth figure is the COMSOL Multiphysics simulation software, simulating the electromagnetic coil (21a) and the Magnetic shield (22a), the distribution of magnetic lines of force exhibited, and wherein the seventh figure is not provided with the aforementioned magnetic shield (22a) [magnetic shield (22a) as shown in the fourth figure] and only this The distribution of magnetic lines of force exhibited by the electromagnetic coil (21a). It can be seen that the configuration of the electromagnetic coil (21a) and the magnetic shield (22a) of the second embodiment can further reduce the influence of the mutual exclusion of the magnetic field and make the distribution of the magnetic lines more concentrated and uniform. When the alternating magnetic field acts on the high temperature coil section (3a) of the conductor material, a more concentrated and uniform alternating eddy current is generated, and the high temperature coil section (3a) is heated by the current thermal effect. Wherein, according to the skin effect, the alternating eddy current is concentrated at the peripheral surface of the high temperature coil section (3a), so that the peripheral surface is rapidly heated to a desired temperature to the aforementioned diaphragm body (A) heating.

Referring to the fourth figure, the process of hot rolling the diaphragm body (A) by using the second embodiment can include normal temperature, preheating, pressurization and cooling processes, which are described in detail as follows:

At normal temperature, the diaphragm body (A) is not in contact with the movable ring body (3a), but is at a normal temperature. When preheating, the diaphragm body (A) is in contact with the high temperature coil section (32a) which is rapidly warmed up, and gradually heats up, but at this time, the diaphragm body (A) is not yet subjected to the pressurizing roller (5a). Pressurized, the diaphragm body (A) is only a target temperature for preheating softening to hot rolling [generally above the glass transition temperature of the diaphragm body (A)]. During pressurization, the pressure roller (5a) presses the diaphragm body (A) against the movable ring body (3a) through the drive belt (41a) to provide the film body (A) hot roll The pressure of the pressure causes the movable ring body (3a) to imprint the microstructure (S) on the diaphragm body (A). It should be noted that, during pressurization, the movable ring body (3a) at the pressurizing point is the low temperature ring segment (31a), but the movable ring body (3a) can be produced by the unit generating the magnetic field. Inductively and rapidly warming up, at this time, the low temperature section (31a) is still at a relatively high temperature in the front section, and can be used for hot stamping. Then, in the cooling section, the diaphragm body (A) is brought into contact with the low temperature ring section (31a) to be gradually cooled, and the film is made before the diaphragm body (A) is separated from the movable ring body (3a). The sheet (A) is cooled to a temperature below the mold release temperature to perform demolding.

By this second embodiment, it is ensured that the movable ring body (3a) maintains the diaphragm body (A) heated to a target temperature required for hot rolling at a relatively high temperature to perform hot rolling, and the movable ring The body (3a) is released from the film body (A) with the low temperature ring section (31a) at a lower temperature. In the second embodiment, the process of heating rolling and cooling demolding can be completed by a single fixed shaft body (1a) and a single movable ring body (3a), which is advantageous for forming the microstructure, increasing the rolling speed and reducing the rolling speed. The pressure of the movable ring body (3a) avoids damage and deformation, and the microstructure (S) of the diaphragm body (A) is free from sticking and softening deformation when demolding. The second embodiment only needs to adjust the temperature of the cold block (12a), the ratio of the diaphragm body (A) to the high temperature ring segment (32a) and the low temperature ring segment (31a), and adjust the pressurization. The roller (5a) is indirectly pressed against the position of the diaphragm body (A), so that the temperature at the time of imprinting or demolding can be controlled, which is advantageous for operation.

In addition, the heating unit (2a) of the second embodiment is a magnetic field generating unit, which directly generates thermal energy on the peripheral surface of the high temperature coil section (32a), which is convenient for rapid hot rolling and improved hot stamping. Process speed. The cold block (12a) of the second embodiment is also fixed, which facilitates the installation of the cooling water pipe and reduces the leakage probability. In addition, in the second embodiment, the magnetic shielding member (22a) can make the alternating magnetic field more concentrated and uniform, thereby improving the efficiency of heating.

In view of the foregoing description of the embodiments, the operation and the use of the present invention and the effects of the present invention are fully understood, but the above described embodiments are merely preferred embodiments of the present invention, and the invention may not be limited thereto. Included within the scope of the present invention are the scope of the present invention.

(1000), (1000a) ‧ ‧ hot rolling device

(1), (1a) ‧ ‧ fixed shaft

(11), (11a) ‧ ‧ insulation structure

(12), (12a) ‧ ‧ cold blocks

(121)‧‧‧Partial side curved surface

(122) ‧‧‧Cooling unit

(13) ‧ ‧ hot blocks

(131)‧‧‧Another part of the side curved surface

(13) ‧ ‧ hot blocks

(2), (2a) ‧ ‧ heating unit

(3) ‧ ‧ and (3a) ‧ ‧ active body

(31), (31a) ‧ ‧ low temperature circle

(32), (32a) ‧ ‧ high temperature circle

(4) ‧‧‧ drive mechanism

(41), (41a) ‧ ‧ transmission belt

(411) ‧ ‧ first paragraph

(412) ‧ ‧ second paragraph

(42)‧‧‧Drive wheel

(43)‧‧‧ Idler

(5), (5a) ‧ ‧ pressure roller

(A) ‧ ‧ diaphragm body

(A1)‧‧‧ Feeding end

(A2) ‧‧‧ receiving end

(S)‧‧‧Microstructure

[First drawing] is a schematic perspective view of a hot-rolled drum of a first embodiment of the present invention.

[Second diagram] is a schematic view of a hot rolling apparatus according to a first embodiment of the present invention.

[Third image] is a schematic perspective view of a hot-rolled drum of a second embodiment of the present invention.

[Fourth Diagram] is a schematic view of a hot rolling apparatus according to a second embodiment of the present invention.

[Fifth Figure] is a top view of a heating unit according to a second embodiment of the present invention, illustrating the state in which the electromagnetic coil is wound and its current direction.

[Sixth Diagram] is a schematic diagram showing the distribution of magnetic lines of force when the electromagnetic coil and the magnetic shield are disposed in the second embodiment of the present invention by simulation software.

[Seventh figure] is a schematic diagram showing the distribution of magnetic lines of force when the magnetic shield of the second embodiment of the present invention is not used in the simulation software simulation, and only the electromagnetic coil is used.

Claims (9)

A hot rolled roller for hot rolling a diaphragm body out of a microstructure, comprising: a fixed cylinder body extending along an axial direction with a heat insulating structure, the heat insulating structure fixing the fixed cylindrical body region The partition comprises only one cold block of a part of the side curved surface, wherein the cold block is provided with a cooling unit; and the movable ring body is provided with the microstructure on the outer surface thereof, and the movable ring body is rotatably sleeved on the Fixing the outside of the column, and when rotating or not rotating relative to the fixed cylinder, defining a circle segment in which the movable ring body contacts the side arc surface of the part at the time is a low temperature circle segment, and defining the movable ring body and the aforementioned partial side at that time The loop portion that is not in contact with the curved surface is a high temperature loop segment; and a heating unit corresponding to the high temperature loop segment for heating the high temperature coil segment. A hot rolling device for hot rolling a diaphragm body out of a microstructure, comprising: a fixed cylinder body extending along an axial direction with a heat insulating structure, the heat insulating structure fixing the fixed cylindrical body region The partition comprises only one cold block of a part of the side curved surface, wherein the cold block is provided with a cooling unit; and the movable ring body is provided with the microstructure on the outer surface thereof, and the movable ring body is rotatably sleeved on the Fixing the outside of the column, and when rotating or not rotating relative to the fixed cylinder, defining a circle segment in which the movable ring body contacts the side arc surface of the part at the time is a low temperature circle segment, and defining the movable ring body and the aforementioned partial side at that time The loop portion that is not in contact with the curved surface is a high temperature loop segment; a driving mechanism for directly or indirectly driving the movable ring body to rotate relative to the fixed cylinder body, and keeping the movable ring body in contact with the partial side arc surface; And a heating unit corresponding to the high temperature loop segment for heating the high temperature coil segment; thereby, the diaphragm body is pressed against the movable ring body and rotated as the movable ring body rotates, and the movable ring body is rotated Keeping the high temperature segment at a higher temperature Hot rolling a sheet of the microstructure, and the low temperature at a relatively low temperature of the diaphragm ring segment from the body. The apparatus for hot rolling according to claim 2, further comprising a pressure roller directly or indirectly pressed against a portion of the diaphragm body in contact with the movable ring body for The diaphragm body is pressed against the movable ring body, and the pressure of the pressurizing pressure is adjusted. The apparatus for hot rolling according to claim 2, wherein the heat insulating structure is a heat insulating sheet, and the fixing cylinder is spaced apart from the cold block and a hot zone in a radial direction. And the heating block is disposed in the hot block, and the movable ring body is rotated relative to the fixed cylinder, and the movable ring body is kept in contact with another portion of the side arc surface corresponding to the hot block. The apparatus for hot rolling according to claim 4, wherein the heating unit is an electric heating tube, and the cooling unit is a coolant line. The device for hot rolling according to claim 2, wherein the heat insulating structure is a hollowed out portion, the movable ring body is a conductive material, and the ring portion adjacent to the hollowed portion is the high temperature. In the loop segment, the heating unit is a magnetic field generating unit corresponding to the interval of the high temperature coil. The apparatus for hot rolling as described in claim 6, wherein the magnetic field generating unit further comprises a magnetic shield. The apparatus for hot rolling according to claim 2, wherein the film body is continuously provided by a feeding end, and the film body after hot rolling is collected by a receiving end, The driving mechanism comprises a driving belt, a driving wheel, an idler wheel and a force adjusting wheel. The driving belt is wound around the driving wheel, the idler wheel and the outer circumference of the tension adjusting wheel, and the driving belt is coupled to the driving wheel and the idler wheel. A first segment and a second segment are defined between the first segment for limiting the diaphragm body to be pressed against the movable ring body, and the second segment is provided with the tension adjusting wheel for adjusting the transmission belt The tension wheel is used to drive the transmission belt to rotate, and indirectly drives the diaphragm body and the movable ring body to rotate relative to the fixed cylinder. A method of hot rolling comprises: extending a thermal insulation structure along an axial direction of a fixed cylinder to partition the fixed cylinder from a cold block, the cold block only including the fixed cylinder a part of the outer peripheral surface, and a cooling unit for cooling the cold block is disposed in the cold block; a movable ring body is rotatably disposed outside the fixed column, and the outer peripheral surface of the movable ring body is provided with the micro The structure, when rotating or not rotating relative to the fixed cylinder, defines a ring segment in which the movable ring body contacts the side arc surface of the part at the time is a low temperature ring segment, and defines that the movable ring body and the aforementioned partial side arc surface are not The contact ring segment is a high temperature ring segment; the high temperature coil segment is heated by a heating unit; and the diaphragm body is pressed against the movable ring body and rotated with the movable ring body to rotate the movable ring body The high temperature segment is maintained at a relatively high temperature to thermally roll the film body out of the microstructure, and the low temperature segment is detached from the film body at a lower temperature.