EP0589685A2 - Heizwalze mit eingebautem Motor - Google Patents

Heizwalze mit eingebautem Motor Download PDF

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Publication number
EP0589685A2
EP0589685A2 EP93307498A EP93307498A EP0589685A2 EP 0589685 A2 EP0589685 A2 EP 0589685A2 EP 93307498 A EP93307498 A EP 93307498A EP 93307498 A EP93307498 A EP 93307498A EP 0589685 A2 EP0589685 A2 EP 0589685A2
Authority
EP
European Patent Office
Prior art keywords
hot roller
motor
rotor
heat
heater coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93307498A
Other languages
English (en)
French (fr)
Other versions
EP0589685B1 (de
EP0589685A3 (en
Inventor
Hiroyoshi Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shinko Electric Co Ltd
Original Assignee
Shinko Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shinko Electric Co Ltd filed Critical Shinko Electric Co Ltd
Publication of EP0589685A2 publication Critical patent/EP0589685A2/de
Publication of EP0589685A3 publication Critical patent/EP0589685A3/en
Application granted granted Critical
Publication of EP0589685B1 publication Critical patent/EP0589685B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/14—Tools, e.g. nozzles, rollers, calenders
    • H05B6/145—Heated rollers
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll

Definitions

  • the present invention relates to a hot roller connected to a rotary machine for driving the hot roller, and particularly relates to a hot roller with a built-in motor.
  • Hot rollers are used in a producing process in a chemical synthetic fiber factory.
  • a hot roller has such a structure, for example, as shown in Fig. 1 or 2, in which steam is blown into the inside of a roller, or in which a heater coil is provided in the inside of a roller.
  • the reference numerals 30 and 20 designates a hot roller and a rotary machine for driving the hot roller respectively.
  • the rotary machine 20 for driving the hot roller 30 includes a motor 21 which is fixedly mounted, through a motor flange 22, on a mechanism to which the motor 21 is to be mounted.
  • the motor 21 has a shaft 23 which is rotatably supported by the motor flange 22 at its end portion through a bearing 24 and connected to a rotary shaft 32 of a rotor 31 of the hot roller 30.
  • a heater coil 34 is fixedly fitted onto an outer surface of a hot roller boss portion 33 connected to the motor flange 22.
  • the bearing 24 is provided with a cooling mechanism (not shown) for supplying the bearing 24 with cooling water, cooling oil, or the like, through a cooling fan and a duct or a pipe so that the bearing 24 can stand the temperature rising inside the hot roller 30 due to the heat generated by the heater coil 34 and the motor 21.
  • a cooling mechanism (not shown) for supplying the bearing 24 with cooling water, cooling oil, or the like, through a cooling fan and a duct or a pipe so that the bearing 24 can stand the temperature rising inside the hot roller 30 due to the heat generated by the heater coil 34 and the motor 21.
  • the motor 21 is provided with a cooling ventilating fan (not shown) so as to protect the motor 21 from the heat generated by the heater coil 34 and the motor 21 per se.
  • the hot roller 30 is rotated at a predetermined rotational speed while the surface temperature of the hot roller 30 is kept at a predetermined value, for example, in a range of from 150°C to 280°C, which is required in the synthetic fiber producing process.
  • a second prior example of Fig. 2 has such a structure that the assembly of the motor and the hot roller is mounted on a horizontal surface plane through a base 26.
  • Fig. 2 those parts the same as those in Fig. 1 are correspondingly referenced.
  • the example of Fig. 2 is different from that of Fig. 1 in the point that a motor flange 25 for connecting a motor 21 to a hot roller 30 is different in shape from the motor flange 22 of Fig. 1 so that the motor flange 25 is fixedly mounted, through the base 26, on a mechanism portion on which the assembly is to be mounted.
  • the specification and shape of the hot roller and the hot roller driving rotary machine are designed in accordance with the conditions of use. Further, as the hot roller driving rotary machine, a motor of a suitable type having a proper specification is selectively used from various motors such as an induction motor, a synchronous motor, and the like, in accordance with the requirement of the specification and performance of the hot roller.
  • the whole length of the assembly of the hot roller 30 and the hot roller driving mechanism 20 is so long because of serial connection of the hot roller 30 and the hot roller driving rotary machine 20 that the area efficiency of a factory equipped with the assembly is reduced.
  • the heat generated from the motor which is the hot roller driving rotary machine is cooled by means of a self cooling fan mounted on an end portion of the motor shaft or by means of a forced cooling fan driven by a separately provided motor so that the generated heat energy is wastefully dissipated into the atmosphere.
  • the bearing 24 which is a connection portion between the hot roller driving rotary machine 20 and the rotary shaft 32 of the hot roller rotor 31 is provided inside the hot roller rotor 31 to make the critical rotational speed of the hot roller 30 higher than the service rotational speed of the same. It is therefore necessary to provide a cooling mechanism because the portion of the bearing 24 is heated by the heat of the heater coil 34, making the cooling energy wasteful.
  • the present invention may provide a hot roller with a built-in motor in which a heater coil is fixedly fitted onto a surface of an outer housing of the motor, and a rotor shaft of the motor is connected to a rotary shaft of a hot roller rotor which is formed so as to cover the heater coil.
  • a ceramic bearing is used as the bearing of the rotor shaft of the motor so as to perform oil-mist lubrication.
  • heat pipes are provided in the hot roller rotor.
  • Fig. 3 shows Embodiment 1 of the present invention corresponding to the flange-mounting type of the first prior art example which has been described above with respect to Fig. 1.
  • a motor built-in hot roller 1 is fixedly mounted, by means of screws (not shown), to a hot roller mounting fixing plate 2 through a hot roller boss portion 3.
  • a motor load opposite side cover 4 and a motor load side cover 5 are provided on the front and rear sides of a cylindrical portion 3a integrally formed with the hot roller boss portion 3 so as to constitute an outer housing of a motor portion.
  • a shaft 7 of a motor rotor 6 is rotatably supported by the motor load opposite side cover 4 and the motor load side cover 5 through bearings 8a and 8b respectively.
  • a motor stator 9 having a motor armature coil 9a fitted therein is fixedly mounted on the cylindrical portion 3a formed integrally with the hot roller boss portion 3 so as to face the motor rotor 6.
  • the motor armature coil 9a is supplied with electric power, through a connection wire 9b, from a power source (not shown) which has a predetermined performance and which is provided outside the hot roller 1.
  • a heater coil 10 is fixedly fitted onto an outer surface of the cylindrical portion 3a integrally formed with the hot roller boss portion 3, and the heater coil 10 is connected, through a conductor (not shown), to a power source (not shown) provided outside the hot roller 1.
  • a hot roller rotor 11 is provided on an outer circumference of the heater coil 10 with a small predetermined gap therebetween.
  • a rotary shaft 12 of the hot roller rotor 11 is connected to an end portion 13 of the shaft 7.
  • a motor of a suitable type may be selectively used from various motors such as an induction motor, a synchronous motor, and the like, in accordance with the required rotational accuracy of the hot roller 1 and the necessary conditions of a system on which the hot roller 1 is to be mounted.
  • Predetermined parts of the hot roller 1 are formed by materials having necessary heat-resistant properties to cope with the temperature rising inside the hot roller 1.
  • heat-resistant wire using a polyimide group insulating material or the like having a predetermined heat-resistant property is used to form the motor armature coil 9a
  • a ceramic bearing is used at least as the bearing 8b so as to perform oil-mist lubrication, and so on.
  • the motor rotor 6 rotates when the motor armature coil 9a is supplied with predetermined electric power.
  • the shaft 7 rotates with the rotation of the motor rotor 6 so that the hot roller rotor 11 rotates at a predetermined peripheral speed.
  • the rotary speed of the hot roller rotor 11 is controlled in accordance with a requirement by means of a controller (not shown) of a system using the hot roller 1.
  • the quantity of heat energy transmitted from the above-mentioned motor mechanism is constant and this heat energy acts as base heat energy for heating the hot roller rotor 11 by the heater coil 10.
  • the surface temperature of the hot roller rotor 11 is controlled by a controller (not shown) of the system using the hot roller 1 so as to be kept, with predetermined accuracy, at a predetermined value, for example, in a range of from 150° to 280° .
  • the surface temperature of the hot roller rotor 11 is kept, for example, at a value in a range of from 150° to 280 °, the temperature inside the hot roller rotor 11 rises to a value in a range of from 150° to 300 ° correspondingly to the heat characteristic or the like of the motor outer housing portion.
  • the parts inside the hot roller rotor 11 employ suitable heat-resistant materials to provide a heat-resistant structure so as to cope with the temperature rising, the hot roller rotor 11 functions stably without being damaged by heat.
  • the reference numeral 1A designates a hot roller which is different from Embodiment 1 only in the point that a hot roller rotor 11A is different in structure from the hot roller rotor 11B of the above Embodiment 1 of Fig. 3, and description about the other portions being omitted accordingly.
  • heat pipes 15 having predetermined characteristics are buried at predetermined intervals and in parallel to a shaft 7, in the inside of the hot roller rotor 11A.
  • Fig. 5 shows a section of the hot roller rotor 11A along X-X line in Fig. 4.
  • the heat pipes 15 are buried in the hot roller rotor 11A with heat-resistant synthetic resin 16 for fixing the respective heat pipes 15.
  • heat-resistant synthetic resin 16 for fixing the respective heat pipes 15.
  • a heat-conductive material may be applied to cover all over the whole heat pipes 15.
  • the heat pipes 15 are selected to have suitable size and buried at suitable intervals according to the necessary heat specification of the hot roller 1 and corresponding to the shape, size, heat characteristics, and the like, of the hot roller rotor 11A and the heater coil 10.
  • grooves may be formed equidistantly in an inner surface of the hot roller rotor 11A so that the heat pipes 15 are buried in the grooves as shown in Fig. 5.
  • cylindrical holes are formed in a hot roller rotor 11B so that heat pipes 15 are buried as shown in Fig. 6.
  • the heat pipes 15 may be arranged desirably and properly in accordance with the necessary heat characteristics and the processing property similarly to the case of Fig. 5.
  • Fig. 4 the constituent parts the same as those in Fig. 3 are referenced correspondingly, excepting the hot roller roller rotor 11A which is changed in size from the hot roller rotor 11 of Fig. 3 in order to bury the heat pipes 15 in the inside of the hot roller rotor 11A, and the hot roller boss portion 3A which is also changed in its shape, size and the like from the hot roller boss portion 3 with the change of the hot roller rotor 11.
  • the reference numeral of the cylindrical portion 3a integrally formed with the hot roller boss portion 3 is also changed into 3Aa.
  • the hot roller rotor 11A is rotated at a predetermined rotational speed by the motor function and the surface temperature of the hot roller rotor 11A is raised and kept by the heater coil 10 in the same manner as described in Fig. 3.
  • the heater coil 10 is supplied with electric power so that the temperature of the heater coil 10 rises and the heat is rapidly transmitted, by the function of the heat pipes 15, to an end portion 11Aa of the hot roller rotor 11A on the side opposite to the side where the heater coil 10 is attached.
  • the heat to be transmitted to the end portion 11Aa of the hot roller rotor 11A on the side opposite to the side where the heater coil 10 is attached can be rapidly controlled by the action of the heat pipes 15 so that temperature control can be carried out with high accuracy.
  • a modification is such that heat pipes are buried as shown in Embodiment 2.
  • a modification is such that heat pipes are buried as shown in Embodiment 2.
  • a suitably configured base is provided so that the hot roller can be mounted on a floor surface like in the case of the second prior art example of Fig. 2. That is, a hot roller 1B has such a configuration as illustrated in Embodiment 3 shown in Fig. 7.
  • Embodiment 3 of Fig. 7 the constituent parts the same as those in Fig. 3 are referenced correspondingly, excepting that a base 16 is provided and the configuration of the hot roller boss portion 3 and the cylindrical portion 3a integrally formed with the hot roller boss portion 3 are changed and the reference numerals are therefore changed from 3 and 3a into 3B and 3Ba respectively.
  • the heater coil is fixedly fitted onto the motor outer housing surface and the shaft of the motor rotor is connected to the rotary shaft of the hot roller rotor which is formed so as to cover the heater coil. Therefore, the whole length of the hot roller is shortened.
  • the present invention provides excellent effects as follows.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Control Of Resistance Heating (AREA)
EP19930307498 1992-09-24 1993-09-22 Heizwalze mit eingebautem Motor Expired - Lifetime EP0589685B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP277725/92 1992-09-24
JP27772592A JPH06111920A (ja) 1992-09-24 1992-09-24 モ−タ内蔵形ホットロ−ラ

Publications (3)

Publication Number Publication Date
EP0589685A2 true EP0589685A2 (de) 1994-03-30
EP0589685A3 EP0589685A3 (en) 1994-06-22
EP0589685B1 EP0589685B1 (de) 1997-06-25

Family

ID=17587455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930307498 Expired - Lifetime EP0589685B1 (de) 1992-09-24 1993-09-22 Heizwalze mit eingebautem Motor

Country Status (3)

Country Link
EP (1) EP0589685B1 (de)
JP (1) JPH06111920A (de)
DE (1) DE69311773T2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101775727A (zh) * 2010-03-01 2010-07-14 江苏俊峰纺织机械有限公司 一种利用工频电流进行电磁和电阻发热的烫光机烫光辊
CN103556427A (zh) * 2013-11-19 2014-02-05 无锡市艾可密封技术有限公司 高速导热油辊筒

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4167686B1 (de) 2021-10-15 2023-12-13 Tokuden Co., Ltd. Induktionsbeheizte walzenvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6804721A (de) * 1968-04-04 1968-06-25
EP0412476A2 (de) * 1989-08-11 1991-02-13 Leybold Aktiengesellschaft Vakuumpumpe mit einem Rotor und mit unter Vakuum betriebenen Rotorlagerungen
JPH04262392A (ja) * 1991-02-15 1992-09-17 Tokuden Co Ltd 誘導発熱ローラ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6804721A (de) * 1968-04-04 1968-06-25
EP0412476A2 (de) * 1989-08-11 1991-02-13 Leybold Aktiengesellschaft Vakuumpumpe mit einem Rotor und mit unter Vakuum betriebenen Rotorlagerungen
JPH04262392A (ja) * 1991-02-15 1992-09-17 Tokuden Co Ltd 誘導発熱ローラ装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section EI, Week 9244, Derwent Publications Ltd., London, GB; Class X25, AN 92-361160 & JP-A-4 262 392 (TOKUDEN KK) 17 September 1992 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101775727A (zh) * 2010-03-01 2010-07-14 江苏俊峰纺织机械有限公司 一种利用工频电流进行电磁和电阻发热的烫光机烫光辊
CN103556427A (zh) * 2013-11-19 2014-02-05 无锡市艾可密封技术有限公司 高速导热油辊筒
CN103556427B (zh) * 2013-11-19 2016-02-24 无锡市艾可密封技术有限公司 高速导热油辊筒

Also Published As

Publication number Publication date
JPH06111920A (ja) 1994-04-22
DE69311773D1 (de) 1997-07-31
EP0589685B1 (de) 1997-06-25
DE69311773T2 (de) 1997-12-04
EP0589685A3 (en) 1994-06-22

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