US3562489A - Heated godet - Google Patents

Heated godet Download PDF

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Publication number
US3562489A
US3562489A US868399A US3562489DA US3562489A US 3562489 A US3562489 A US 3562489A US 868399 A US868399 A US 868399A US 3562489D A US3562489D A US 3562489DA US 3562489 A US3562489 A US 3562489A
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US
United States
Prior art keywords
godet
ribs
roller
shell
face
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.)
Expired - Lifetime
Application number
US868399A
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English (en)
Inventor
Erich Lenk
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.)
Oerlikon Barmag AG
Original Assignee
Barmag Barmer Maschinenfabrik AG
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Filing date
Publication date
Priority claimed from DE19681804777 external-priority patent/DE1804777C3/de
Application filed by Barmag Barmer Maschinenfabrik AG filed Critical Barmag Barmer Maschinenfabrik AG
Application granted granted Critical
Publication of US3562489A publication Critical patent/US3562489A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0095—Heating devices in the form of rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49353—Heat pipe device making

Definitions

  • FIG 5 INVENTOR ERlCH LENK 1*, 074% .0 WW, L iQMLW i i i i Iii/Mill HEATED comzr INTRODUCTION
  • synthetic fibers After the introduction of synthetic fibers they have been used preferably on textile machines in which such filaments, for example of polyamide or polyester, are subjected to a heat treatment, as, for example, in the stretching or texturizing.
  • a heat treatment as, for example, in the stretching or texturizing.
  • synthetic threads and film bands there frequently arises the requirement of maintaining very exact processing temperatures and very narrow temperature ranges.
  • the thread initially cold relative to the godet, draws much heat energy from the'godet in the vicinity of the run-on point. As filament becomes warmer as it progresses spirally over the godet, it withdraws less and less heat from the godet surface. Even slight temperature differences make themselves noticeable at least in quality reductions which express themselves, for example, in the differing dyeability of the finished product.
  • heating systems such as, for example, electric resistance and inductive heating systems.
  • heated godets in which a vapor or liquid medium is supplied externally over stuffing boxes or slide ring packings to the rotating roller or godet. The cost of manufacture of the latter godets, however, is high and their reliability in operation is low.
  • German Utility Model Pat. No. 1,964,320 there is described an electrically heated roller which is constructed as a hollow body partially filled with liquid. The liquid is heated and then, in turn, the heat is transmitted uniformly to the wall of the roller. This functions, however, only when there occurs a relative movement between roller and liquid, i.e., at turning speeds at which the centrifugal forces are not so great that a closed liquid ring is formed by centrifugal force at the periphery.
  • the liquid which is a relatively poor heat conductor, acts like an insulating ring on the inside of the roller shell. It must be assumed that the liquid layer has sufficient depth so that the heating element is in direct contact with liquid itself. Otherwise the efficiency would be still less.
  • the problem namely the equalization of the godet surface temperature at high rotation speeds such as those at which the centrifugal acceleration is considerably greater than the earth gravitational acceleration, cannot be satisfactorily solved with such an apparatus.
  • the godet or roller cylindrical shell is double-walled cylinder with an annular hollow space between these walls. It is hermetically sealed to retain the liquid and its vapors.
  • the inside face of the outer shell wall has projections extending radially inward into the vapor space and/or the outer face of the inner shell wall has projections extending radially outward, the radially outer ends of which are immersed in the liquid layer lying annularly by virtue of centrifugal force on the inside face of the outer shell wall.
  • the system can be constructed in various embodiments wherein a part or all of the projections extend substantially axially parallel or approximately axially parallel and have one or more interruptions or spaces serving as fluid passages in peripheral direction and/or part or all of the projections extend substantially in the peripheral direction and have interruptions or spaces serving as fluid passages in axial direction.
  • a part or all of the projections extend substantially axially parallel or approximately axially parallel and have one or more interruptions or spaces serving as fluid passages in peripheral direction and/or part or all of the projections extend substantially in the peripheral direction and have interruptions or spaces serving as fluid passages in axial direction.
  • the projections of the inner and/or the outer shell wall having a spiral course preferably with the aforesaid interruptions or spaces.
  • the outer face of the inner shell wall can have radially outwardly extending projections mainly in the middle zone of the godet and the inner face of the outer shell wall can have radially inwardly extending projections mainly in the border zones of the godet or roller width.
  • the shell walls of the godet or roller preferably are heated by a resistance or inductive heating device mounted stationarily in the interior of the godet or by a resistance heating device revolving with the godet or roller, to which the electrical energy can be supplied over slip rings.
  • a resistance or inductive heating device mounted stationarily in the interior of the godet or by a resistance heating device revolving with the godet or roller, to which the electrical energy can be supplied over slip rings.
  • the stationarily mounted inductive heating device has proved successful.
  • the shell walls, especially the inner wall consist wholly or partially of material having good heat and electric conductance.
  • FIG. 1 is a diametric section of a first godet embodiment
  • FIG. 2 is a half transverse section on section plane 2-2 of FIG. 1 without the heating element;
  • FIGS. 3 to 5 are diametric half-sections of additional godet embodiments of the invention.
  • FIG. 6 is a half-transverse section on section plane 6-6 of FIG. 3.
  • the godet according to FIGS. 1 and 2 consists essentially of a hollow cylinder formed by the substantially cylindrical, outer shell wall l, the substantially cylindrical inner shell wall 2, the disc-shaped end wall 3 which is connected in any expeditious manner to the drive shaft 4.
  • the outer shell wall I has an axially parallel bore 6 which can receive a temperature measuring sensor which is connected in a manner known per se with a commercially known device (not shown) for the regulation of the electrical energy required for the energizing and/or controlling of the heating element.
  • the inner face of the outer shell wall 1 has axially parallel ribs 7 circumferentially spaced thereabout.
  • ribs 7 Into the longitudinal spaces between the ribs 7 there extend axially parallel ribs 8, which are provided on the outer face of the inner shell wall 2 and extend to close to the bottoms 9 of the spaces between the ribs 7 (FIG. 2). At the axially opposite ends of ribs 7 and 8 there are provided rings or grooves I and 11, serving as annular channels or manifolds.
  • the heating element can be a stationary electric-resistance or inductive heating element, which is attached by means of the collar 12 tothe machine frame. lf an inductive heating system is used, the heating body 5 is constructed as an electric winding with iron core, in which there is only a small air gap between the crosspieces of the iron core and the inner shell wall 2 in order to assure a good transition of the magnetic force lines into the shell walls 1 and 2 or through the inner shell wall 2 into the outer shell wall 1.
  • the middle section of the inner shell wall in the zone of the heating coil, therefore between the crosspieces of the coil-form core consists of a metal capable of conducting heat and electricity well, for example, copper.
  • This copper ring then acts as a short-circuited secondary coil with a winding in a transformer in which a relatively strong current flows, which is transformed into heat by the ohmic resistance of the ring.
  • the shell walls 1 and 2 are interfit ed in such a way that they are substantially coaxial with substantially uniform spacings between the ribs 7 and 8.
  • the shell walls 1 and 2 are so tightly connected with one another at the axial ends that the space resulting between them is hermetically sealed except for, at first, one or two bores through which the liquid heating medium, for example, water, is sup plied and the air is evacuated. Then these bores are sealed airtight.
  • the amount of liquid provided in the space is great enough to assure that the radially outer ends 14 of the ribs 8 extend into the liquid layer 13, which is formed on the bottom 9 of the longitudinal spaces between the ribs 7 as the result of centrifugal force at rapid rotation.
  • the liquid 13 In the heating of the godet, the liquid 13 begins to evaporate. Because of the evaporation, pressure and boiling point rise as the temperature becomes higher, until the required operating temperature of the godet outer shell is reached, as adjusted on the regulator. In a hermetically sealed space with a liquid and its vapor, there prevails a certain equilibrium between liquid amount and vapor amount or vapor pressure, which is determined by the temperature of the system. On supplying of heat to the water steam is formed; on withdrawal of heat, i.e., cooling of the vapor, this condenses again into water.
  • the godet In order to make use of these physical processes, the godet must be designed in such a way that it favors these processes. Since the heating of the godet takes place from inside, i.e., over the inner shell wall 2, its projections or ribs 8 must extend radially outward to such an extent that they are immersed in the liquid 13 in order to impart by direct contact the amount of heat necessary for the evaporation.
  • the projections or ribs 7 extending radially inward from the outer shell wall 1 into the vapor space, between liquid surface and shell wall 2, have the function of condensing the vapor on its surfaces and of conducting the liberated heat from the vapor space to the outer shell through the insulating liquid layer. ln detail, the follow ing takes place.
  • the centrifugal force provides for a uniform distribution of the liquid, i.e., the liquid surface forms a cylinder concentric to the axis of rotation.
  • the depth of liquid in the spaces between the ribs 7 is equalized by the interconnection of such spaces by the annular grooves 10 and l 1.
  • the godet according to FIG. 3 differs from that according to FIGS. 1 and 2 in the execution and arrangement of the projections.
  • the inner cylindrical shell wall 2a has circumferential projections or ribs 15 only in its middle section, which are provided by machining grooves 16 in the circumferential direction. These grooves are intersected by longitudinal grooves 17 uniformly distributed on the circumference.
  • the cylindrical outer shell wall la has projections or ribs 18 only in the axially end zones, which are formed by machining of circular grooves 19 in the circumferential direction. These grooves are intersected also by several axially parallel grooves 20 distributed uniformly on the circumference (shown only in the right-hand end zone).
  • the projections 18 and grooves 19 of the left end zone are formed in a ring 21, which is fitted into shell la after positioning the inner shell wall 2a into the outer wall Ia.
  • the projections 15 and I8 and the grooves 16 and 19 may be spirals. In this case it is possible to dispense with the ring 21, and instead the spiral groove 19 can be threaded into the corresponding shaped shell wall la.
  • the inner shell wall 2a is simply screwed axially into the outer shell wall la.
  • the addition of the liquid, the evacuating and the sealing of the hollow space between the shell walls 10 and 2a is carried out in the same manner as described above.
  • the outer shell wall 17 can be constructed exactly like that of FIG. 3, i.e., it has circumferential projections or ribs 18 only at the axial ends.
  • Theinner shell wall 2b has only axially parallel projections 23 in the middle section.
  • the course of the physical processes is promoted advantageously by this godet design. Since in the middle section of the shell lb there naturally prevails the greatest heat concentration, here the evaporation process is most intense and in the end zones of the godet the condensation process is most intense. correspondingly there are fonned pressure gradients from the middle to the ends which the vapor follows through the spaces between the ribs 23 to the projections 18.
  • H6. 5 shows a simplified or inexpensive construction in terms of ease of manufacture ofthe godet according to the invention. it has circumferential ribs or projections a only on one shell wall, preferably on the inner shell wall 2c. However, contrary to the embodiments hitherto described, part of the ribs or projections extend to the opposite shell wall 1c and lie firmly against it or are soldered to it for the achievement of a direct heat transfer. In the illustrated embodiment, the projections or ribs 25 of the axially end zones'so extend. The projections or ribs 25, like the projections 18 in FlGS. 3 and 4, have several axially parallel grooves 20 distributed on the periphery for the balancing of the liquid layer. Obviously the godets of FIGS. 3 to 5 have temperature measuring and regulating devices, the representation of which has-here been omitted.
  • a heated godet or roller for the conveyance and heating thereon of filaments, and particularly adapted for operation at high rates of rotation wherein the centrifugal force at the circumference is greater than the rate of earth gravitational acceleration which comprises an outer shell having a cylindrical filament-conveying and heating surface, an inner shell within said outer shell with an annular space therebetween, means for hennetically sealing said annular space, a liquid partially filling said annular space whereby said liquidforms a circumferential layer on the inner face of said outer shell when said godet or roller is rotating at the aforesaid rate of rotation, the vapor portion of said liquid being between said layer of liquid and the outer face of said inner shell, and ribs on at lext one of said inner and outer faces extending respectively radially outwardly or radially inwardly from said faces with the respective radially outer or radially inner ends projecting respectively into said liquid layer or said vapor space.
  • a godet or roller as claimed in claim 1 means for heating I ;the inner shell, at least some of said ribs extending longitulayer to distribute substantially uniformly therein between said ribs.
  • a godet or roller as claimed in claim 1 means for heating said inner shell, and at least'some of said ribs extending circumferentially around said face or faces and axially extending grooves through said ribs providing communication in the longitudinal direction between said ribs.
  • a godet or roller as claimed in claim I wherein said ribs on at least one of said inner and outer faces are spiral, circumferential ribs.
  • a godet or roller as claimed in claim I wherein at least a portion of said inner shell wall is composed of a metal having high heat and electric conductance.
  • a godet or roller as claimed in claim I wherein said outer face of said inner shell has circumferentially spaced, substantially axially parallel ribs with longitudinally extending grooves therebetween and the inner face of said outer shell has circumferentially spaced, substantially axially parallel ribs extending into said grooves.
  • a godet or roller as claimed ln'claim I wherein said outer face of said inner shell has circumferential axially spaced ribs in the longitudinal midportion andsaid inner face of said outer shell has axially spaced circumferential grooves in the axial end portions thereof.
  • a godet or roller as claimed in claim 2 wherein said outer face of said inner shell has circumferentially spaced, substantially axially parallel ribs in the longitudinal midportion and said inner face of said outer shell has axially spaced circumferential grooves in the axial end portions thereof.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Resistance Heating (AREA)
US868399A 1968-10-24 1969-10-22 Heated godet Expired - Lifetime US3562489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681804777 DE1804777C3 (de) 1968-10-24 Beheizte Walze

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US3562489A true US3562489A (en) 1971-02-09

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US868399A Expired - Lifetime US3562489A (en) 1968-10-24 1969-10-22 Heated godet

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US (1) US3562489A (US07122603-20061017-C00045.png)
BE (1) BE736709A (US07122603-20061017-C00045.png)
CH (1) CH498214A (US07122603-20061017-C00045.png)
ES (1) ES370342A1 (US07122603-20061017-C00045.png)
FR (1) FR2021482A1 (US07122603-20061017-C00045.png)
GB (1) GB1215270A (US07122603-20061017-C00045.png)
NL (1) NL155605B (US07122603-20061017-C00045.png)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011641A (en) * 1971-12-17 1977-03-15 Yoshio Kitano Jacketed roller for synthetic yarn spinning apparatus
US4064933A (en) * 1975-09-29 1977-12-27 Dietzgen Corporation Developing roller apparatus for reproduction machines
US4105896A (en) * 1975-10-01 1978-08-08 Herbert Kannegiesser Kommanditgesellschaft Rotary device for producing and/or processing webs, pieces, foils and composite materials
US4261112A (en) * 1977-01-10 1981-04-14 Joachim Apitz Heat exchange cylinder
US4266115A (en) * 1979-05-21 1981-05-05 Pitney Bowes Inc. Hot roll fusing device
US4267473A (en) * 1976-11-23 1981-05-12 Electric Power Research Institute Superconducting generator thermal radiation shield having substantially uniform temperature
US4683628A (en) * 1985-01-16 1987-08-04 Walzen-Irle Gmbh Heatable calender roller
US4737231A (en) * 1980-05-03 1988-04-12 Fuji Machinery Co., Ltd. Heat sealing device
US5362945A (en) * 1991-04-27 1994-11-08 Barmag Ag Godet for heating an advancing yarn
US5970592A (en) * 1996-06-18 1999-10-26 Barmag Ag Godet for heating a running synthetic thread
US6100508A (en) * 1996-08-17 2000-08-08 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Heated roller
US6684637B2 (en) * 2002-01-25 2004-02-03 Sunpower, Inc. Parallel slot heat exchanger
US20040234306A1 (en) * 2003-05-20 2004-11-25 Xerox Corporation Fuser roll for xerographic printing having spiral support ribs
EP1526196A2 (en) * 2003-10-20 2005-04-27 Maschinenfabrik Rieter Ag A thread heating device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2126183B1 (US07122603-20061017-C00045.png) * 1971-02-25 1974-06-21 Blaschke & Co Gmbh Emil
DE8807478U1 (de) * 1988-06-09 1989-10-05 D.I.E.N.E.S Apparatebau GmbH, 6052 Mühlheim Heizeinrichtung für Fäden, Garne, Textil- und Kunststoffbahnen
EP0972427A1 (en) * 1997-01-13 2000-01-19 American Roller Company Heated roller with integral heat pipe
US8940185B2 (en) 2010-01-06 2015-01-27 Jnc Corporation Liquid crystal compound, liquid crystal composition and liquid crystal display device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2739218A (en) * 1953-05-20 1956-03-20 Ohio Brass Co Heating rolls
US3020383A (en) * 1958-12-05 1962-02-06 Kurashiki Rayon Co Heated roll
US3135319A (en) * 1959-12-24 1964-06-02 Emery B Richards Leveling roll
US3185816A (en) * 1963-08-30 1965-05-25 Du Pont Temperature controlled device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2739218A (en) * 1953-05-20 1956-03-20 Ohio Brass Co Heating rolls
US3020383A (en) * 1958-12-05 1962-02-06 Kurashiki Rayon Co Heated roll
US3135319A (en) * 1959-12-24 1964-06-02 Emery B Richards Leveling roll
US3185816A (en) * 1963-08-30 1965-05-25 Du Pont Temperature controlled device

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011641A (en) * 1971-12-17 1977-03-15 Yoshio Kitano Jacketed roller for synthetic yarn spinning apparatus
US4064933A (en) * 1975-09-29 1977-12-27 Dietzgen Corporation Developing roller apparatus for reproduction machines
US4105896A (en) * 1975-10-01 1978-08-08 Herbert Kannegiesser Kommanditgesellschaft Rotary device for producing and/or processing webs, pieces, foils and composite materials
US4267473A (en) * 1976-11-23 1981-05-12 Electric Power Research Institute Superconducting generator thermal radiation shield having substantially uniform temperature
US4261112A (en) * 1977-01-10 1981-04-14 Joachim Apitz Heat exchange cylinder
US4266115A (en) * 1979-05-21 1981-05-05 Pitney Bowes Inc. Hot roll fusing device
US4737231A (en) * 1980-05-03 1988-04-12 Fuji Machinery Co., Ltd. Heat sealing device
US4683628A (en) * 1985-01-16 1987-08-04 Walzen-Irle Gmbh Heatable calender roller
US5362945A (en) * 1991-04-27 1994-11-08 Barmag Ag Godet for heating an advancing yarn
US5970592A (en) * 1996-06-18 1999-10-26 Barmag Ag Godet for heating a running synthetic thread
US6100508A (en) * 1996-08-17 2000-08-08 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Heated roller
US6684637B2 (en) * 2002-01-25 2004-02-03 Sunpower, Inc. Parallel slot heat exchanger
US20040234306A1 (en) * 2003-05-20 2004-11-25 Xerox Corporation Fuser roll for xerographic printing having spiral support ribs
EP1526196A2 (en) * 2003-10-20 2005-04-27 Maschinenfabrik Rieter Ag A thread heating device
WO2005038107A1 (en) * 2003-10-20 2005-04-28 Maschinenfabrik Rieter Ag A thread heating device
EP1526196A3 (en) * 2003-10-20 2006-07-19 Maschinenfabrik Rieter Ag A thread heating device

Also Published As

Publication number Publication date
NL155605B (nl) 1978-01-16
FR2021482A1 (US07122603-20061017-C00045.png) 1970-07-24
BE736709A (US07122603-20061017-C00045.png) 1969-12-31
GB1215270A (en) 1970-12-09
DE1804777A1 (de) 1970-05-27
CH498214A (de) 1970-10-31
DE1804777B2 (de) 1975-07-31
NL6914825A (US07122603-20061017-C00045.png) 1970-04-28
ES370342A1 (es) 1971-04-16

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