US3648522A - Draw roll and temperature gauge arrangement - Google Patents

Draw roll and temperature gauge arrangement Download PDF

Info

Publication number
US3648522A
US3648522A US71577A US3648522DA US3648522A US 3648522 A US3648522 A US 3648522A US 71577 A US71577 A US 71577A US 3648522D A US3648522D A US 3648522DA US 3648522 A US3648522 A US 3648522A
Authority
US
United States
Prior art keywords
draw roll
temperature gauge
cover member
retaining rim
wall
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
US71577A
Other languages
English (en)
Inventor
Jakob Hafeli
Peter Martin Pfyffer
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Application granted granted Critical
Publication of US3648522A publication Critical patent/US3648522A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/04—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies
    • G01K13/08—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement

Definitions

  • An outer cover member is fixed to the machine frame and is situated opposite the extended circumferential wall portion of the draw roll.
  • This outer cover member extends towards and in close proximity to the aforesaid face of the retaining rim member, the latter overlapping without contact the cover member. Furthermore, this cover member extends towards the retaining rim member in spaced relationship from the aforementioned extended circumferential wall portion of the draw roll member to define therebetween a compartment for receiving a temperature gauge.
  • the present invention relates to a new and improved arrangement of a temperature gauge or feeler at a heated draw roll.
  • Draw rolls or godets are roller members which rotate about their lengthwise extending axis. They are used, for instance, on draw-twisting, draw-winding or spin-draw-winding machines, preferably as draw rolls for drawing or, for example, guiding or transporting synthetic threads or endless filaments or strands of filaments wrapped about the godet. Heated draw rolls are especially used for the transfer of heat to the thread or the like, the temperature prevailing at the outside cylindrical roll surface being of significance for the desired heating of such thread.
  • thermometer At a draw roll
  • the temperature gauge is rigidly connected to the machine frame and protrudes into an annular groove provided at the end wall or surface of the draw roll facing the machine frame, this annular groove being disposed concentrically with respect to the axis of rotation of the draw roll.
  • the temperature gauge extends into the heated region of the draw roll heated directly by a heating device arranged therewithin, and without such temperature gauge touching the draw roll.
  • this state of the art arrangement exhibits the drawback that the temperature gauge does not measure the temperature prevailing at the outer cylindrical roll surface, merely measures the temperature existing within the cylindrical wall of the draw roll.
  • the temperatures inside of the draw roll will be higher than those prevailing on the outer cylindrical roll surface due to the influence, for instance, of heat conductivity or the thermal capacity of the material from which the draw roll is formed as well as because of the close proximity of the heating device.
  • the temperature of the outer surface of the draw roll also is affected by radiation and convection losses and by the heat absorbed by the thread wrapped about the draw roll or godet.
  • the prior art temperature gauge arrangement under discussion permits measuring the temperature only at those locations of the draw roll where the thermal conditions are approximately the same as prevail at the outer cylindrical roll surface about which the thread is wrapped.
  • Another, more specific object of the present invention contemplates an arrangement of the temperature gauge or feeler at a draw roll in such a manner that the effective temperature actually prevailing at the outer surface of the draw roll can be reliably measured.
  • Still a further significant object of the present invention relates to an improved draw roll and temperature gauge arrangement enabling measurement of those temperatures actually acting upon a thread or the like wrapped around the draw roll directly on the outer surface thereof.
  • Still a further significant object of the present invention relates to an improved arrangement of a draw roll and temperature gauge which effectively provides protection of the temperature gauge against external factors which could influence the direct reading thereof and wherein radiation heat losses are substantially suppressed so as to conserve the thermal energy utilized for heating the draw roll.
  • the inventive draw roll and temperature gauge arrangement will be seen to comprise a draw roll member having an outer circumferentially extending wall, a retaining rim member extending circumferentially about such draw roll wall.
  • This draw roll wall includes an extended circumferential wall portion to one side of a face of the retaining rim member confronting the machine frame.
  • An outer cover member is fixedto the machine frame and is disposed opposite the extended circumferential wall portion of the draw roll. This outer cover member extends towards and in close proximity to the aforementioned face of the retaining rim member.
  • the retaining rim member overlaps without contact the cover member which, in turn, extends towards the retaining rim member in spaced relationship from the aforementioned extended circumferential wall portion of the draw roll member to define therebetween a compartment for receiving a temperature gauge.
  • the temperature gauge is fixed to the machine frame and is disposed at the region of the extended circumferential wall portion, protruding into the aforesaid compartment formed between the cover member and the extended circumferential wall portion of the draw roll member.
  • the temperature gauge can be arranged in such a manner that it, for instance, protrudes into the compartment parallel to the outer surface of the draw roll, or such temperature gauge can protrude into such compartment under any angle, for instance perpendicular or at right angles to the outer surface of the draw roll. It is also possible for the temperature gauge to be arranged such that it protrudes into the compartment tangentially with respect to the outer wall surface of the draw roll.
  • the invention contemplates the possibility of having the outer cover member surround, either completely or partially, the wall portion of the draw roll extending to said one side of the face of the retaining rim member confronting the machine frame.
  • the cover member without contacting the draw roll, extends into a recess of the face of the retaining rim member confronting the machine frame, this cover member then being overlapped by the end face, and specifically the boundary walls of the recess of the retaining rim member at the respective sides of the cover member facing towards and away from the outer wall of the draw roll.
  • the outer surface of the cover member can also be formed in such a manner that threads which, for instance, have been shifted over the retaining rim member of the draw roll in a direction towards the machine frame, can be collected and/or transported away at the outer surface of the cover member.
  • this cover member can be formed of a suitable heat insulating material, such cover member preferably extending from the machine frame over the full length of the extended wall portion of the draw roll up to the face of the retaining rim member confronting the machine frame.
  • the inventive arrangement of the temperature gauge or feeler behind the retaining rim member and over the outer surface of the draw roll it is possible to advantageously ascertain the temperatures actually acting upon a thread wrapped around the draw roll and which are measured directly at the outer surface of such draw roll.
  • a further advantage afforded by the inventive arrangement is not only that the cover member suppresses losses of heat due to radiation, thereby assuring that the temperature at the measuring location is maintained, but further the temperature gauge is protected against the external influencing factors inasmuch as the cover member extends into close proximity to the face of the retaining rim member and is overlapped by such face without touching the draw roll.
  • the inventive arrangement especially excludes, by virtue of the overlapping effect just-described as provided by the face of the retaining rim member, that, for instance a thread or threads shifted over the retaining rim member are caught in the gap between the cover member rigidly connected with the machine frame and the retaining rim member rotating at high speed and the cover member rigidly secured to the machine frame.
  • FIG. 1 is a longitudinal sectional view of a first embodiment of inventive draw roll and temperature gauge arrangement
  • FIG. 2 is a fragmentary longitudinal sectional view similar to that shown in FIG. 1, but depicting a modified form of draw roll and temperature gauge arrangement;
  • FIG. 3 is a fragmentary longitudinal sectional view of a still further modified version of inventive draw roll and temperature gauge arrangement
  • FIG. 4 is a fragmentary cross-sectional view of a still further embodiment of inventive draw roll and temperature gauge arrangement.
  • FIG. 5 is a sectional view of the draw roll and temperature gauge arrangement shown in FIG. 4, taken substantially along the line V-V thereof.
  • draw roll and temperature gauge arrangement illustrated in FIG. 1 will be seen to comprise a draw roll 1 secured by means of a draw roll hub portion 2, a holding plate member 3 and a screw 4 to one end of a shaft member 5 supported in a nonillustrated machine frame. Shaft member 5 rotatably drives the draw roll 1.
  • a retaining rim member 7 which in this arrangement, surrounds the entire outer circumference of the substantially cylindrically shaped wall 6 of this draw roll 1 in such a manner that the aforesaid wall 6 has a portion extending behind the retaining rim member 7 in a direction towards the machine frame, as shown by the wall portion to the left of the retaining rim member 7 of FIG. 1.
  • the retaining rim member 7 serves to prevent one or a plurality of nonillustrated threads wrapped about the outer circumferential surface 8 of the draw roll '1 from shifting in a direction towards the machine frame.
  • the retaining rim member 7 is advantageously designed, in this embodiment, as follows:
  • the face 9 of such retaining rim member 7 which is directed away from the machine frame, in other words directed to the right of the illustration of FIG. 1, will be seen to be inclined from the outer surface 8 of the draw roll 1 upwardly in the direction of the machine frame, whereas the opposite face 10 confronting the machine frame forms a right angle with the aforementioned outer surface 8.
  • the first mentioned face 9 directed away from the machine frame may also enclose other angles with the outer surface 8 of the draw roll 1, for instance, a right angle.
  • cover member 11 which is disposed over the extended portion 6a of the outer surface 8 of the draw roll which portion, as previously explained, extends behind the retaining rim member 7 in the direction of the machine frame.
  • Cover member 11 is destined to be fixedly connected with the nonillustrated machine frame, and the diameter of such cover member is larger than the outside diameter of the wall 6 of the draw roll 1. Further, cover member 11 concentrically surrounds the complete circumference of the wall 6 of this draw roll 1 so that between the inner surface 11a of the cover member 11 and the outer surface 8 of the draw roll wall 1 there is formed an annular space or compartment 12.
  • Cover member 11 will also be seen to possess a portion 11b which extends radially towards the inside in a direction substantially parallel to the end face 13 of the wall 6 of the draw roll 1, and further incorporates the portion which extends axially in spaced relation from the outer wall 8 of the draw roll 1 in a direction towards and into an annular recess 14 provided at the face 10 of the retaining rim member 7. But, it will be observed that the portion 1 1c of the cover member 11 extends into the annular recess 14 without, however, touching the boundary walls of such recess.
  • Cover member 11 preferably contains or is completely formed from a suitable heat insulating material.
  • an opening 16 disposed in parallelism with the outer surface 8 of the draw roll 1.
  • a temperature gauge or feeler 17 is inserted through opening 16 either with a tight fit or slidably, so that it protrudes into the annular compartment 12 in a direction, which in this embodiment, is parallel to the draw roll surface 8.
  • the temperature gauge 17 is rigidly connected to the machine frame through the agency of the cover member 11 and furthermore can be connected via a suitable connection piece 18 with an appropriate measuring instrument (not shown) and/or via a nonillustrated control device with the heating mechanism 19.
  • the outside surface of the cover member 11 is provided with a recess 20, as shown, so that threads which, for instance, have shifted over the retaining rim member are guided away therefrom and collected in the recess 20.
  • FIG. 2 illustrates in fragmentary longitudinal sectional view details of a modified form of inventive draw roll and temperature gauge arrangement utilizing a draw roll 1 having the draw roll wall 6 provided with the retaining rim member 7, and for which reason the same reference numerals have here been employed as used for the same or analogous elements of the arrangement of FIG. 1.
  • a temperature gauge 17 which also protrudes into the compartment 12 in a direction parallel to the outer surface 8 of the draw roll I, is covered by a cover member 21 which is formed slightly different from the cover member 11 of FIG. 1.
  • this cover member 21 is likewise rigidly connected with the'nonillustrated machine frame.
  • the outside surface 22 of cover member 21 is indicated to be slightly inclined in the direction of the outer surface 8 of the draw roll 1, and will be see specifically to extend conically from the retaining rim member 7 towards the inside, that is, in a direction towards the lengthwise axis of the draw roll 1 at the side of the face 10 of the retaining rim member 7 directed towards the machine frame.
  • FIG. 3 once again illustrates a fragmentary sectional view of a still further embodiment of draw roll and temperature gauge arrangement, wherein for convenience in illustration only a portion of the wall 23 is shown, this draw roll wall likewise being provided with a retaining rim member 24.
  • the face 25 of the retaining rim member 24 confronting the machine frame is here also provided with an annular recess 26.
  • a cover member 28 protrudes into this recess 26, but without contacting the boundary walls thereof, so as to provide a small clearance or gap 27, wherein the face 25 of the retaining rim member 24 overlaps, as shown, the confronting end of the cover member 28 from both above and below.
  • cover member 28 situated behind the end face 29 of the draw roll will be seen to extend radially inwardly. Furthermore, cover member 28 is provided with an opening 31, the axis of which is located at substantially a right angle to the outer roll surface 30.
  • a suitable temperature gauge or feeler 32 is inserted through this opening 31 so as to protrude vertically from above into the confines of the compartment or chamber 33 formed between the cover member 28 and the outer roll surface 30, as already explained.
  • a connecting element 34 serves to fixedly connect the temperature gauge 32 with the machine frame. Gauge 32 may be connected via the connector 35 with a suitable measuring instrument (not shown) and/or via a control device with a heating element, such as heating element 19 illustrated in FIG.
  • Cover member 28 in this embodiment is also designed to possess a conical configuration at its outside surface 36. If desired, a recess of the type corresponding to recess shown in FIG. 1, could be similarly provided at the outside surface 36 of the cover member 28 of FIG. 3.
  • draw roll 39 will be seen to be provided with a retaining rim member 40 at the outer surface 37 thereof, this retaining rim member 40 concentrically surrounding the circumference of the draw roll wall 38.
  • cover member 41 which surrounds the outer surface 37 of the draw roll 39 at the side thereof which faces the machine frame, cooperating with the outer surface 37 in the manner previously explained in conjunction with the prior embodiments to provide the annular compartment or space 42 which, as shown, is located between the inside surface of the cover member 41 and the outer surface 37 of the draw roll 39.
  • cover member 41 is again rigidly connected with the nonillustrated machine a frame. Also, similar to the prior embodiments, the cover member 41 protrudes, in spaced relationship and over the outer surface 37 of the draw roll, into a recess 44 provided at the retaining rim member 40, yet without contacting the boundary walls of such recess. As a result, the cover member 41 is again overlapped at both its inside surface as well as its outer surface by the end face 45 of retaining rim member 40. In this arrangement, a temperature gauge 46 extends tangentially with respect to the outer surface 37 of the draw roll and protrudes into the temperature gauge-receiving compartment 42, as shown.
  • This temperature gauge 46 is supported, most preferably at the machine frame as previously described, by the connecting element 47. Furthermore, the connector 48 serves to connect the temperature gauge 46 with a suitable measuring instrument and/or via a suitable control device with a draw roll-heating mechanism which may be of any construction desired. Similar to the arrangements of FIGS. 2 and 3, here also the outside surface 49 of the cover member 41 conicaily tapers in a direction away from the end face 45 of the retaining rim member 40. If desired, this outside surface 49 can also be provided with the previously discussed circumferential recess. The mode of operation of this embodiment of the draw roll and temperature gauge arrangement is similar to that described and discussed above in conjunction with the embodiments of FIG. 1 to 3 inclusive.
  • a draw roll and temperature gauge arrangement comprising a draw roll member having an outer circumferentially extending wall, a retaining rim member integral with and extending circurnferentially about said wall, said wall including a circumferential wall portion extending to one side of a face of said retaining rim member intended to confront the machine frame, a stationary outer cover member situated opposite said extended circumferential wall portion of said draw roll, said outer cover member extending towards and in close proximity to said face of said retaining rim member, said retaining rim member overlapping said cover member without contact therewith, said cover member extending towards said retaining rim member in spaced relationship from said extended wall portion of said draw roll member to define therebetween a compartment for receiving a temperature gauge, and a temperature gauge disposed at the region of said extended wall portion and protruding into said compartment formed between said cover member and said extended wall portion of said draw roll member.
  • a draw roll and temperature gauge arrangement comprising a draw roll member having an outer wall, a retaining rim member integral with and extending circumferentially about said outer wall, said outer wall including an extended circumferential wall portion to one side of a face of said retaining rim member intended to confront the machine frame, a cover member intended to be fixed to a machine frame and situated opposite said extended circumferential wall portion of said draw roll, said cover member having a cover portion extending towards and in spaced relationship from said face of said retaining rim member, said retaining rim member overlapping without contact said extended cover portion of said cover member, said cover portion being directed towards said retaining rim member in spaced relationship from said circumferential wall portion of said draw roll member to define therebetween a compartment for receiving a temperature gauge, and a stationary temperature gauge protruding into said compartment formed between said cover portion and said extended circumferential wall portion of said draw roll memberv

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Centrifugal Separators (AREA)
US71577A 1969-09-15 1970-09-11 Draw roll and temperature gauge arrangement Expired - Lifetime US3648522A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1393369A CH494952A (de) 1969-09-15 1969-09-15 Anordnung mit einem Temperaturmessfühler zur Messung der Temperatur einer beheizten Galette

Publications (1)

Publication Number Publication Date
US3648522A true US3648522A (en) 1972-03-14

Family

ID=4396596

Family Applications (1)

Application Number Title Priority Date Filing Date
US71577A Expired - Lifetime US3648522A (en) 1969-09-15 1970-09-11 Draw roll and temperature gauge arrangement

Country Status (4)

Country Link
US (1) US3648522A (de)
CH (1) CH494952A (de)
DE (1) DE6939468U (de)
FR (1) FR2060663A5 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813518A (en) * 1972-03-07 1974-05-28 K Arita Apparatus for measuring the temperature of rotary bodies
US4186606A (en) * 1977-04-21 1980-02-05 Konishiroku Photo Industry Co., Ltd. Apparatus for measuring temperature
US4199985A (en) * 1977-12-30 1980-04-29 Konishiroku Photo Industry Co., Ltd. Temperature detecting device for image fixing apparatus of electrostatic recording apparatus
US5145322A (en) * 1991-07-03 1992-09-08 Roy F. Senior, Jr. Pump bearing overheating detection device and method
US5159166A (en) * 1988-06-30 1992-10-27 Rieter Machine Works, Ltd. Drawroll unit
US6133553A (en) * 1997-01-20 2000-10-17 Barmag Ag Godet for advancing, guiding, and heating an advancing synthetic filament yarn

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58909654D1 (de) * 1988-06-30 1996-05-23 Rieter Ag Maschf Galette mit breitem Drehzahlbereich
DE19624566A1 (de) * 1996-06-20 1998-01-08 Erdmann Edmund Gmbh & Co Kg Vorrichtung zur Verringerung der Wärmeverluste und zur Verbesserung des Temperaturprofils an beheizten Galetten
DE19857453B4 (de) * 1998-12-12 2008-03-20 Pfeiffer Vacuum Gmbh Temperaturüberwachung an Rotoren von Vakuumpumpen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211893A (en) * 1962-02-19 1965-10-12 Ici Ltd Temperature controlled electrically heated roller
US3412229A (en) * 1966-10-20 1968-11-19 Cameron Brown Capital Corp Electric heating means
US3581060A (en) * 1965-12-03 1971-05-25 Barmag Barmer Maschf Temperature control device in a heated galette

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211893A (en) * 1962-02-19 1965-10-12 Ici Ltd Temperature controlled electrically heated roller
US3581060A (en) * 1965-12-03 1971-05-25 Barmag Barmer Maschf Temperature control device in a heated galette
US3412229A (en) * 1966-10-20 1968-11-19 Cameron Brown Capital Corp Electric heating means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813518A (en) * 1972-03-07 1974-05-28 K Arita Apparatus for measuring the temperature of rotary bodies
US4186606A (en) * 1977-04-21 1980-02-05 Konishiroku Photo Industry Co., Ltd. Apparatus for measuring temperature
US4199985A (en) * 1977-12-30 1980-04-29 Konishiroku Photo Industry Co., Ltd. Temperature detecting device for image fixing apparatus of electrostatic recording apparatus
US5159166A (en) * 1988-06-30 1992-10-27 Rieter Machine Works, Ltd. Drawroll unit
US5145322A (en) * 1991-07-03 1992-09-08 Roy F. Senior, Jr. Pump bearing overheating detection device and method
US6133553A (en) * 1997-01-20 2000-10-17 Barmag Ag Godet for advancing, guiding, and heating an advancing synthetic filament yarn

Also Published As

Publication number Publication date
FR2060663A5 (de) 1971-06-18
CH494952A (de) 1970-08-15
DE6939468U (de) 1970-03-05

Similar Documents

Publication Publication Date Title
US3648522A (en) Draw roll and temperature gauge arrangement
ES324467A1 (es) Dispositivo para el tratamiento termico de elementos filiformes o planos especialmente hilos o tejidos.
GB1215270A (en) A heating godet with temperature compensation
ES355713A2 (es) Un dispositivo de rodillo de estirado con calefaccion regu-lable.
ES365141A1 (es) Aparato para secar hojas fibrosas.
CN205012022U (zh) 带弯辊的纤维热定型辊
US3309236A (en) Apparatus for continuously measuring temperatures of advancing metal strips
US1971314A (en) Machine for the manufacture of chocolate
GB1119226A (en) Crimping apparatus
US2255017A (en) Thread advancing reel
JPS5852512Y2 (ja) 糸の摩擦係数測定装置
CN205062471U (zh) 带引导辊的纤维热定型机构
CH624816B (de)
CN204803567U (zh) 一种温度均匀的纺织用压辊
US3632947A (en) Draw roll and temperature gauge for draw-twisting, draw-winding and spin-draw-winding machines
GB1394006A (en) Yarn heater apparatus
CN207456629U (zh) 一种回转窑辐射管的测温装置
CN113720446A (zh) 一种低温辐射计布线结构及布线方法
US3601580A (en) Heater roll temperature detector apparatus
GB1379193A (en) Thread heating apparatus
CN207439555U (zh) 一种轻巧型温度仪表表头
CN206746915U (zh) 一种涂布辊
JPS58194284A (ja) 高温ロ−ラ
IT991215B (it) Procedimento per la tintura ad alta temperatura abbreviata ed uniforme di materiali tessili di fibre idrofobe
JPH10259994A (ja) 回転型熱処理装置及び回転型熱処理装置における温度制御方法