US3879594A - Temperature measurement and control of rotating surfaces - Google Patents

Temperature measurement and control of rotating surfaces Download PDF

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Publication number
US3879594A
US3879594A US400917A US40091773A US3879594A US 3879594 A US3879594 A US 3879594A US 400917 A US400917 A US 400917A US 40091773 A US40091773 A US 40091773A US 3879594 A US3879594 A US 3879594A
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United States
Prior art keywords
recess
pick
frame
support
intermediate support
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Expired - Lifetime
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US400917A
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English (en)
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Terence Graham Shillito
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    • 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
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/224—Selection or control of the temperature during stretching
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/18—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning heated or cooled, e.g. from inside, the material being dried on the outside surface by conduction
    • F26B13/183—Arrangements for heating, cooling, condensate removal

Definitions

  • the support is in good thermal contact with the 3.369.106 2/1968 TFO" 219/469 x 3,417,226 12/1968 Thomiszer 219/469 X 7 Claims, 4 Drawing Figures TEMPERATURE MEASUREMENT AND CONTROL OF ROTATING SURFACES This invention relates to heat transferring means.
  • the alternatives to the filament temperature will be bodies that are rotating in intimate contact with the filament while it is receiving heat from the rotating roller, and this implies that the heat controlling equipment must either rotate with the roller or that the temperature sensing signal must bridge the gap between the rotating roller and some non-rotating location.
  • means for transferring heat to a rapidly moving filament comprising a roller, endless belt or the like conveying element, means for mounting the conveying element on a frame of a filament processing machine, a heating source adapted for mounting on the machine frame for supplying heat to a surface of the conveyingelement which, in use, contacts the filament, a recess formed in a side edge of the conveying element which, 1
  • the temperature sensor in use, is adjacent to the frame, the recess extending adjacent to and parallel with the filament contacting surface of the element, and a temperature sensor for extending into the recess without contacting the side walls thereof, wherein the temperature sensor is mounted in good thermal contact with a structure having a substantial area extending into radiation from the side walls of the recess, the structure is supported from an intermediate support which is in good thermal contact with the ambient atmosphere, there being a high thermal resistance between the intermediate support and the structure, and supports of high thermal re sistance are provided for mounting the intermediate support on the frame of the machine.
  • the intermediate support may also carry electrically insulated connections for any electrical connections between the temperature sensor and frame related measuring and/or control equipment.
  • HO. 1 is an axial section of heat transferring means according to the invention.
  • FIG. 2 is a detail of the mounting of a temperature sensor in the heat transferring means of FIG. 1;
  • FIGS. 3A and 3B show schematically temperature and thermal resistance parameters in a known heat transferring means and in the heat transferring means of FIGS. 1 and 2, respectively.
  • a roller 20 is supported from a main frame 1 of a filament processing machine by means of a rotatable shaft 2.
  • the roller 20 includes an inner hollow cylinder 3 and a coaxial outer cylinder 4 secured together by means of an annular outer face 5.
  • Inner cylinder 3 is securely and concentrically locked to the rotatable shaft 2 by a nut and washer 6.
  • Heat source 7 For supplying heat to the outer cylinder of the roller 20 a heat source 7 is supported on the main frame 1 by an intermediate stationary disc 8 and extends into the space between cylinders 3 and 4.
  • Heat source 7 may be an electrical induction winding or a radiant heater which, when energised by alternating current, induces electrical current in the equivalent of a short circuited single turn formed by the outer cylinder 4.
  • annular slot 9 is formed in the cylinder 4.
  • This slot extends axially along the outer cylinder 4 to a location in close proximity to a section of the outer surface of the cylinder whose temperature is typical of the heat transferring surface.
  • a gap 10 which allows for rotation of cylinder 4 relative to disc 8 is made as small as possible so as to minimise the amount of air change in slot 9. This allows the surface of the slot 9 to reach the same or nearly the same temperature as the outer surface of cylinder 4.
  • a temperature sensor 16 Projecting into the slot 9 without contacting the cylinder 4 is a temperature sensor 16 which is supported in the manner shown in more detail in FIG. 2 of the drawings.
  • a platform 11 which serves as an intermediate support for sensor 16 has a good temperature radiating surface so that it remains at substantially ambient temperature.
  • the platform 11 is supported on the disc 8 by pillars 12 of high thermal resistance. Between the pillars 12 a slot 13 is cut in the disc 8 and from the platform 11 two supports 14 extend via the slot 13 to a radiant energy pick-up surface 15 which is located within the annular slot 9.
  • the temperature sensor 16 Mounted on the pick-up surface 15 is the temperature sensor 16.
  • the surface 15 is modified by slots 17 to give optimum selection between minimum radiation resistance between the surfaces of annular slot 9 and the pick-up surface 15 and maximum conduction resistance to supports 14.
  • Electrical connection between the sensor 16 and insulated connectors 19 on the platform 11 is via electrical connectors I8, which are kept small in diameter and spiralled to increase their length, thereby reducing thermal shunting.
  • FIG. 3A shows these' two parameters at locations in a heat transferring means corresponding to that in FIGS. 1 and 2 except that there is no platform 11, the temperature sensor 16 being supported directly on the machine frame 1.
  • T represents the temperature of the inner surface of slot 9, which is substantially equal to the temperature of the outer surface of cylinder 4, and hence the surface temperature of a filament as it leaves the roller 20.
  • T is the temperature of the sensor 16
  • T is the temperature of the machine frame I
  • R is the thermal resistance between the inner surface of slot 9 and the sensor 16
  • R is the thermal resistance between sensor 16 and the frame 1.
  • T represents the temperature of the platform 11, which is interposed between the sensor 6 and the machine frame 1, and T, is the ambient temperature.
  • R is the thermal resistance between the platform 11 and the frame I and R is the thermal resistance between the platform and the surrounding air due to radiation and contact. Since the heat supplied to the heat sink, platform 11, from the inner surface of slot 9 and from the machine frame 1 equals the heat lost from the platform to the ambient air,
  • equation (6) shows that the corresponding temperatures recorded by the sensor 16 are 184.5", l84.7and l85.lC.
  • a calibration is effected to remove errors under normal conditions, say at T 25C and a rise in T of 30C to 55C.
  • this gives rise to a total error of 3.2C when the machine is started up at an ambient temperature of 20C.
  • the error reduces to 27C when ambient temperature of 25C is reached.
  • the total error is 06C at start up, reducing to only 02C at an ambient temperature of 25C.
  • the platform 11 and pick-up surface 15 are made of a high conductivity metal, blackened to enhance its heat radiation properties.
  • the supports 14 are made of metal with a low cross-sectional area, to increase their thermal resistance, or of ceramic material.
  • the pillars 12 are made of ceramic material and are hollow to allow for fixing by screws to the disc 8.
  • heat transferring means may have an endless band or belt in place of the roller 20 of FIGS. 1 and 2.
  • a slot corresponding to slot 9 may be formed along one lateral edge of the belt to receive a temperature sensor.
  • the sensor extends into the slot at a location where the belt contacts a driving roller therefor.
  • a source of heat radiation may replace the winding 7.
  • slip rings may be employed to supply heating current to the roller, band or belt.
  • An apparatus for transferring heat to a rapidly moving filament comprising:
  • a heating source mounted on said frame for supplying heat to a surface of said conveying element which, while in use, contacts said filament;
  • a radiant energy pick-up surface disposed within said recess, said surface having substantial area and being exposed to radiation from the side walls of said recess;
  • a temperature sensor mounted in good thermal contact with said pick-up surface and extending into said recess without contacting the sidewalls thereof;
  • intermediate support in good thermal contact with the ambient atmosphere for support of said pick-up surface, said support having a high thermal conductivity and there being a high thermal resistance between said intermediate support and said pickup surface;
  • support means of high resistance for mounting said intermediate support on the frame of the machine.
  • Heat transferring means as claimed in claim 1, wherein the conveying element is a hollow, rotatable roller, and the recess is an annular cylindrical recess formed in a cylindrical side wall of the roller.
  • Heat transferring means as claimed in claim 2, wherein the heating source extends into the interior of the hollow roller.
  • the heating source comprises an electrical winding for inducing heating currents in the conveying element.
  • Heat transferring means as claimed in claim 1, wherein the heating source comprises a heating element for supplying radiant heat to the conveying element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Radiation Pyrometers (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • General Induction Heating (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US400917A 1972-09-29 1973-09-26 Temperature measurement and control of rotating surfaces Expired - Lifetime US3879594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4494472 1972-09-29

Publications (1)

Publication Number Publication Date
US3879594A true US3879594A (en) 1975-04-22

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Application Number Title Priority Date Filing Date
US400917A Expired - Lifetime US3879594A (en) 1972-09-29 1973-09-26 Temperature measurement and control of rotating surfaces

Country Status (3)

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US (1) US3879594A (Direct)
JP (1) JPS5047236A (Direct)
DE (1) DE2348975A1 (Direct)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053277A (en) * 1975-09-05 1977-10-11 Akzona Incorporated Apparatus and method for heating threads
US4157039A (en) * 1975-05-12 1979-06-05 Loewy Robertson Engineering Company Limited Detection of the temperature of sheet or strip material
US4186606A (en) * 1977-04-21 1980-02-05 Konishiroku Photo Industry Co., Ltd. Apparatus for measuring temperature
US4533808A (en) * 1983-12-28 1985-08-06 Phillips Petroleum Company An induction yarn heater device
EP0445723A3 (en) * 1990-03-08 1992-12-02 Yoshida Kogyo K.K. Method and apparatus for drying beltlike article, and induction heater having rotary drums
US5235151A (en) * 1990-08-16 1993-08-10 Apparatebau. Dampf- Und Kraftanlagen Gmbh Induction-heated godet
US5254070A (en) * 1991-02-26 1993-10-19 Barmag Ag Godet
US5324905A (en) * 1990-04-26 1994-06-28 Rieter Machine Works, Ltd. Drawing roller unit with scavenging means
US5624593A (en) * 1992-10-01 1997-04-29 Barmag Ag Yarn advancing heated godet having temperature controlling sensors
US5665043A (en) * 1994-11-10 1997-09-09 Barmag Ag Godet for heating and advancing yarns
US20120032793A1 (en) * 2010-07-30 2012-02-09 Frank Joseph Sonzala Visual wheel end assembly high-temperature warning system
US9956907B2 (en) 2014-09-03 2018-05-01 Cnh Industrial America Llc Controller for a vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107354555B (zh) * 2017-09-06 2023-02-21 浙江凯成智能设备股份有限公司 一种变形丝机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369106A (en) * 1965-07-27 1968-02-13 Pyrotel Corp Process-heating control system
US3417226A (en) * 1965-04-19 1968-12-17 Dietzgen Co Eugene Temperature responsive apparatus
US3435171A (en) * 1965-12-03 1969-03-25 Barmag Barmer Maschf Heated galette
US3529116A (en) * 1964-11-21 1970-09-15 Tokushu Denki Kk Heating rotary drum apparatus having shaped flux pattern
US3612830A (en) * 1969-03-20 1971-10-12 Dienes Honeywell Gmbh Heated roller and apparatus for sensing roller temperature

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529116A (en) * 1964-11-21 1970-09-15 Tokushu Denki Kk Heating rotary drum apparatus having shaped flux pattern
US3417226A (en) * 1965-04-19 1968-12-17 Dietzgen Co Eugene Temperature responsive apparatus
US3369106A (en) * 1965-07-27 1968-02-13 Pyrotel Corp Process-heating control system
US3435171A (en) * 1965-12-03 1969-03-25 Barmag Barmer Maschf Heated galette
US3612830A (en) * 1969-03-20 1971-10-12 Dienes Honeywell Gmbh Heated roller and apparatus for sensing roller temperature

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157039A (en) * 1975-05-12 1979-06-05 Loewy Robertson Engineering Company Limited Detection of the temperature of sheet or strip material
US4053277A (en) * 1975-09-05 1977-10-11 Akzona Incorporated Apparatus and method for heating threads
US4186606A (en) * 1977-04-21 1980-02-05 Konishiroku Photo Industry Co., Ltd. Apparatus for measuring temperature
US4533808A (en) * 1983-12-28 1985-08-06 Phillips Petroleum Company An induction yarn heater device
EP0445723A3 (en) * 1990-03-08 1992-12-02 Yoshida Kogyo K.K. Method and apparatus for drying beltlike article, and induction heater having rotary drums
US5324905A (en) * 1990-04-26 1994-06-28 Rieter Machine Works, Ltd. Drawing roller unit with scavenging means
US5235151A (en) * 1990-08-16 1993-08-10 Apparatebau. Dampf- Und Kraftanlagen Gmbh Induction-heated godet
US5254070A (en) * 1991-02-26 1993-10-19 Barmag Ag Godet
US5624593A (en) * 1992-10-01 1997-04-29 Barmag Ag Yarn advancing heated godet having temperature controlling sensors
US5665043A (en) * 1994-11-10 1997-09-09 Barmag Ag Godet for heating and advancing yarns
US20120032793A1 (en) * 2010-07-30 2012-02-09 Frank Joseph Sonzala Visual wheel end assembly high-temperature warning system
US9956907B2 (en) 2014-09-03 2018-05-01 Cnh Industrial America Llc Controller for a vehicle

Also Published As

Publication number Publication date
JPS5047236A (Direct) 1975-04-26
DE2348975A1 (de) 1974-04-04

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