US3921431A - Drawroll arrangement - Google Patents
Drawroll arrangement Download PDFInfo
- Publication number
- US3921431A US3921431A US413987A US41398773A US3921431A US 3921431 A US3921431 A US 3921431A US 413987 A US413987 A US 413987A US 41398773 A US41398773 A US 41398773A US 3921431 A US3921431 A US 3921431A
- Authority
- US
- United States
- Prior art keywords
- shaft
- drawroll
- arrangement
- housing
- bearings
- 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
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Classifications
-
- 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
- D02J1/225—Mechanical characteristics of stretching apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
- B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- each motor is mounted on the machine frame and is'provided with a free rotor shaft journal onto which the drawroll is mounted in a manner similar to 21 directly mounted belt pulley (e.g. as shown in German Disclosure l,760,627 and German GM 70, 32, 345, as well as Swiss Pat. Nos. 492,809 and 465,127).
- the rotor of the drive motor and the drawroll thus are fixed on the same axle which is rotatably supported in so-called bearing end plates at both ends of a stator housing of the motor.
- Still other arrangements are also known in which a heated godet or drawroll is mounted on one end of a drive shaft while a coupling member is provided at the other end for transmitting the drive power.
- the drive power in this case, as a rule, is supplied by an individual drive motor of a known construction which is equipped with two bearings for the motor rotor shaft while one end of the shaft is provided with a coupling member corresponding to the coupling member mounted onto the godet shaft.
- the invention provides a drawroll arrangement for draw-winding, spin-draw-winding and drawtwisting machines having a common rotatable shaft on which a godet is mounted in cantilevered fashion at one end and a rotor of a drive motor for driving the godet is mounted in cantilevered fashion at the other end.
- the common shaft for directly transmitting the drive force from the motor to the godet is rotatably supported by two bearings within a housing situated between the godet and drive motor.
- the drawing illustrates a cross-sectional view of a drawroll arrangement according to the invention.
- the drawroll arrangement substantially comprises a heated'or unheated godet l constructed as a drawroll and a drive motor 2 with a rotor 3 and stator 4.
- the godet l and the rotor 3 are mounted on a common shaft 5 which directly transmits a drive force from the motor 2 onto the godet 1.
- the shaft 5 is provided with a journal 6, 7 of any suitable type at each end.
- the journal 6 for the godet 1 can be provided as usual with a conical end portion facilitating the exchange of the godet 1 and the journal 7 is chosen to be of cylindrical nature with the rotor 3 press-fitted thereon.
- the shaft 5 is rotatably supported by two bearings 8, 9 arranged between the two shaft journals 6, 7 or the godet 1 and the rotor 3 respectively in such manner that each of the two shaft journals 6, 7 extends outward from the bearings 8 and 9, respectively, in cantilevered fashion.
- Both bearings 8, 9 are arranged in a pair of end walls of a common bearing housing 10.
- the bearing housing 10 is provided with suitable mounting means 1 1 and is mounted on a machine frame 13, for example, by means of mounting screws 12, in order to be adjustably and detachably arranged.
- the godet is mounted exteriorly of the housing 10.
- the stator 4 of the drive motor 2 is also arranged in a separate motor housing 14, the outside of which is closed by a cover end plate 15 which is detachably mounted on the face side.
- the stator 4 is secured to the housing 14.
- the cover end plate 15 is void of any bearing for the shaft 5.
- the other face side of the housing 14 opposite to the end plate cover 15 is provided with a mounting flange, mounting supports or, e.g. merely with bores parallel to the axis for detachably mounting the stator 4 and housing 14 exteriorly on the bearing housing 10 by means of screws 16.
- the heating can be effected by a heating device 17 of any type as chosen, such as e.g. by a resistance heater or by an inductive heater.
- a supply of preferably multiphase alternating current of controllable frequency is supplied by a suitable supply device 18, e.g. a controllable frequency invertor.
- a suitable supply device 18 e.g. a controllable frequency invertor.
- an inductive measuring value transducer is provided consisting of a rotating induction coil 19 mounted on the shaft 6 and of a stationary induction coil 20 mounted in the housing 10.
- a further advantage is that, if heated godets 1 are used, the distance between the godet l and the drive motor 2 is enlarged. This considerably reduces the heating of the motor 2. Furthermore, no coupling members are needed between the motor shaft and godet shaft. As opposed to gear train arrangements, the rotational speeds of the drawroll of a whole machine for processing different material types and for different processing characteristics can be divided freely into groups or individually and can be controlled in groups or individually.
- a further advantage of the drawroll arrangement is that the shaft diameter between the bearings 8, 9 and the distance between the bearings 8, 9 can be chosen as desired.
- the shaft diameter between the bearings has been limited by the motor rotor.
- These two values namely, shaft diameter between the bearings and the distance between the bearings, which are also determining factors of the critical rotational speed of the drawroll arrangement, allow the drawroll arrangement according to the invention to be laid out optimally in this respect.
- the space between the bearings 8, 9 can be used for the arrangement of a measuring value transducer for transmitting a signal supplied e. g. by a temperature measuring gauge mounted within the drawroll.
- a drawroll arrangement comprising a machine frame
- a drive motor mounted at the opposite end of said shaft, said motor having a rotor secured on said opposite shaft end;
- a bearing housing axially adjustably mounted on said machine frame and including a pair of end walls;
- a drawroll arrangement comprising a machine frame
- a bearing housing axially adjustably mounted on said machine frame and including a pair of end walls,
- a drive motor within said motor housing having a rotor mounted on one of said journals of said shaft and a stator secured to said motor housing, and
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Forwarding And Storing Of Filamentary Material (AREA)
- General Induction Heating (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The drawroll arrangement uses a common shaft to mount the godet and rotor of the drive motor for rotating the godet. Both the godet and rotor are mounted in cantilevered fashion. The stator of the drive motor is also detachably mounted on the bearing housing for the shaft bearings.
Description
United States Patent [191 Wirz [ DRAWROLL ARRANGEMENT [75] Inventor: Armin Wirz, Dietlikon, Switzerland [73] Assignee: Rieter Machine Works, Ltd.,
Winterthur, Switzerland 22 Filed: Nov. 8, 1973 21 Appl. No.: 413,987
[30] Foreign Application Priority Data Nov. 10, 1972 Switzerland 16378/72 52 us. or. 72/289 [51] Int. Cl. B21C 1/02 [58] Field of Search 72/289, 287; 242/78 [56] References Cited UNITED STATES PATENTS 1,950,901 3/1934 Mcllvried 7 2/289 2,262,247 11/1941 Nye 72/289 3,296,418 1/1967 Johnson 219/471 3,463,893 8/1969 Chifu 2l9/l0.61
FOREIGN PATENTS OR APPLICATIONS 548,667 3/1932 Germany 72/289 [451 Nov. 25, 1975 7,029,963 11/1970 Germany 7,029,962 11/1970 Germany 7,032,345 5/1971 Germany 465,127 12/ 1 968 Switzerland 492,809 8/1970 Switzerland 989,349 9/1962 United Kingdom 1,495,882 10/ 1 966 France 1,760,627 9/1973 Germany Primary ExaminerMichael .ll. Keenan Attorney, Agent, or Firml(e:nyon & Kenyon Reilly Carr 8L Chapin [57] ABSTRACT The drawroll-arrangement uses a commontshaft to mount the godet and rotor of the drive motor for ro- 'tating the godet. Both the godet and rotor are mounted in cantilevered fashion. The stator of the drive motor is also detachably mounted on the bearing housing for the shaft bearings.
4 Claims, 1 Drawing Figure US. Patent Nov. 25, 1975 DRAWROLL ARRANGEMENT This invention relates to a drawroll arrangement and particularly a drawroll arrangement used on drawwinding machines, spin-draw-winding machines and draw-twisting machines.
Presently, on draw-winding machines, spin-drawwinding machines and draw-twisting machines, the drawrolls frequently are each driven by an individual motor. As a rule, each motor is mounted on the machine frame and is'provided with a free rotor shaft journal onto which the drawroll is mounted in a manner similar to 21 directly mounted belt pulley (e.g. as shown in German Disclosure l,760,627 and German GM 70, 32, 345, as well as Swiss Pat. Nos. 492,809 and 465,127). The rotor of the drive motor and the drawroll thus are fixed on the same axle which is rotatably supported in so-called bearing end plates at both ends of a stator housing of the motor. Such an arrangement has an advantage in providing a relatively short construction length. The trend, however, towards ever higher production rates per winding or twisting position, not only requires correspondingly increased rotational speeds of the drawrolls, but also correspondingly increased heating capacity for the individual drawrolls. Thus, in the above-mentioned arrangement, the ever increasing heater capacity needed creates a problem in that the drive motors become exposed to an increasing additional heating. This is particularly detrimental to the motor coils.
Other draw-winding, spin-draw-winding and drawtwisting machines are also known in which a heated godet or drawroll is mounted on one end of a drive shaft which is rotatably supported by two bearings while a gear is provided for transmitting the drive power at the other end or between the bearings of the shaft (as described in German AS 1,615,453, US. Pat. Nos. 3,463,893 and 3,296,418, British Pat. No. 989,349 as well as French Pat. No. 1,495,882). Such arrangements, however, have a disadvantage in that the position of the godet shaft, once chosen, is rigidly determined and cannot be adapted for any adjustments which might be needed later on.
Still other arrangements are also known in which a heated godet or drawroll is mounted on one end of a drive shaft while a coupling member is provided at the other end for transmitting the drive power. The drive power, in this case, as a rule, is supplied by an individual drive motor of a known construction which is equipped with two bearings for the motor rotor shaft while one end of the shaft is provided with a coupling member corresponding to the coupling member mounted onto the godet shaft. As this arrangement necessitates the use of a coupling and four bearings, a relatively complex and expensive construction results (German GM 70, 29, 962 and 70, 29, 963).
Accordingly, it is an object of the invention to reduce the number of bearings required in a drawroll arrangement.
It is another object of the invention to reduce the heating effect of a heated godet on a motor of a draw -roll arrangement.
It is another object of the invention to avoid the use of coupling member between a drive motor shaft and a godet shaft.
Briefly, the invention provides a drawroll arrangement for draw-winding, spin-draw-winding and drawtwisting machines having a common rotatable shaft on which a godet is mounted in cantilevered fashion at one end and a rotor of a drive motor for driving the godet is mounted in cantilevered fashion at the other end. In
addition, the common shaft for directly transmitting the drive force from the motor to the godet is rotatably supported by two bearings within a housing situated between the godet and drive motor.
These and other objects and advantages of the invention will become more apparent from the following detailed description and appended claims taken in conjunction with the accompanying drawing in which:
The drawing illustrates a cross-sectional view of a drawroll arrangement according to the invention.
Referring to the drawing, the drawroll arrangement substantially comprises a heated'or unheated godet l constructed as a drawroll and a drive motor 2 with a rotor 3 and stator 4. The godet l and the rotor 3 are mounted on a common shaft 5 which directly transmits a drive force from the motor 2 onto the godet 1. For this purpose, the shaft 5 is provided witha journal 6, 7 of any suitable type at each end. Thus e.g. the journal 6 for the godet 1 can be provided as usual with a conical end portion facilitating the exchange of the godet 1 and the journal 7 is chosen to be of cylindrical nature with the rotor 3 press-fitted thereon.
The shaft 5 is rotatably supported by two bearings 8, 9 arranged between the two shaft journals 6, 7 or the godet 1 and the rotor 3 respectively in such manner that each of the two shaft journals 6, 7 extends outward from the bearings 8 and 9, respectively, in cantilevered fashion. Both bearings 8, 9 are arranged in a pair of end walls of a common bearing housing 10. The bearing housing 10 is provided with suitable mounting means 1 1 and is mounted on a machine frame 13, for example, by means of mounting screws 12, in order to be adjustably and detachably arranged. As shown, the godet is mounted exteriorly of the housing 10.
The stator 4 of the drive motor 2 is also arranged in a separate motor housing 14, the outside of which is closed by a cover end plate 15 which is detachably mounted on the face side. The stator 4 is secured to the housing 14. The cover end plate 15 is void of any bearing for the shaft 5. The other face side of the housing 14 opposite to the end plate cover 15 is provided with a mounting flange, mounting supports or, e.g. merely with bores parallel to the axis for detachably mounting the stator 4 and housing 14 exteriorly on the bearing housing 10 by means of screws 16.
If heated godets l are used, the heating can be effected by a heating device 17 of any type as chosen, such as e.g. by a resistance heater or by an inductive heater.
In order to provide adjustability of the rotational speed of the godet l, a supply of preferably multiphase alternating current of controllable frequency is supplied by a suitable supply device 18, e.g. a controllable frequency invertor. Furthermore, in the space betwen the two bearings 8, 9 in the housing 10 e.g. an inductive measuring value transducer is provided consisting of a rotating induction coil 19 mounted on the shaft 6 and of a stationary induction coil 20 mounted in the housing 10.
A considerable advantage of the inventive drawroll arrangement is that the two bearings arranged in the end plates of normal drive motors, which would otherwise be needed if such motors are used, are eliminated.
A further advantage is that, if heated godets 1 are used, the distance between the godet l and the drive motor 2 is enlarged. This considerably reduces the heating of the motor 2. Furthermore, no coupling members are needed between the motor shaft and godet shaft. As opposed to gear train arrangements, the rotational speeds of the drawroll of a whole machine for processing different material types and for different processing characteristics can be divided freely into groups or individually and can be controlled in groups or individually.
A further advantage of the drawroll arrangement is that the shaft diameter between the bearings 8, 9 and the distance between the bearings 8, 9 can be chosen as desired. In previous constructions wherein a motor is arranged between bearings, the shaft diameter between the bearings has been limited by the motor rotor. These two values, namely, shaft diameter between the bearings and the distance between the bearings, which are also determining factors of the critical rotational speed of the drawroll arrangement, allow the drawroll arrangement according to the invention to be laid out optimally in this respect. Furthermore, the space between the bearings 8, 9 can be used for the arrangement of a measuring value transducer for transmitting a signal supplied e. g. by a temperature measuring gauge mounted within the drawroll.
What is claimed is:
l. A drawroll arrangement comprising a machine frame;
a shaft;
a godet mounted on one end of said shaft;
a drive motor mounted at the opposite end of said shaft, said motor having a rotor secured on said opposite shaft end;
a bearing housing axially adjustably mounted on said machine frame and including a pair of end walls; and
a pair of bearings each mounted in a respective one of said housing end walls and rotatably supporting said shaft with said ends disposed in cantilevered fashion.
2. A drawroll arrangement as set forth in claim 1 wherein said rotor is press-fitted onto said shaft end.
3. A drawroll arrangement as set forth in claim 1 wherein said drive motor includes a stator housing detachably secured to said bearing housing.
4. A drawroll arrangement comprising a machine frame,
a bearing housing axially adjustably mounted on said machine frame and including a pair of end walls,
a pair of bearings arranged in said end walls of said bearing housing,
a shaft rotatably supported in said bearings and having a journal at each end extending outwards from a respective one of said bearings,
a motor housing secured exteriorly to said bearing housing,
a drive motor within said motor housing having a rotor mounted on one of said journals of said shaft and a stator secured to said motor housing, and
a godet mounted on the other of said journals exteriorly of said bearing housing.
Claims (4)
1. A drawroll arrangement comprising a machine frame; a shaft; a godet mounted on one end of said shaft; a drive motor mounted at the opposite end of said shaft, said motor having a rotor secured on said opposite shaft end; a bearing housing axially adjustably mounted on said machine frame and including a pair of end walls; and a pair of bearings each mounted in a respective one of said housing end walls and rotatably supporting said shaft with said ends disposed in cantilevered fashion.
2. A drawroll arrangement as set forth in claim 1 wherein said rotor is press-fitted onto said shaft end.
3. A drawroll arrangement as set forth in claim 1 wherein said drive motor includes a stator housing detachably secured to said bearing housing.
4. A drawroll arrangement comprising a machine frame, a bearing housing axially adjustably mounted on said machine frame and including a pair of end walls, a pair of bearings arranged in said end walls of said bearing housing, a shaft rotatably supported in said bearings and having a journal at each end extending outwards from a respective one of said bearings, a motor housing secured exteriorly to said bearing housing, a drive motor within said motor housing having a rotor mounted on one of said journals of said shaft and a stator secured to said motor housing, and a godet mounted on the other of said journals exteriorly of said bearing housing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1637872A CH560254A5 (en) | 1972-11-10 | 1972-11-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3921431A true US3921431A (en) | 1975-11-25 |
Family
ID=4416830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US413987A Expired - Lifetime US3921431A (en) | 1972-11-10 | 1973-11-08 | Drawroll arrangement |
Country Status (6)
Country | Link |
---|---|
US (1) | US3921431A (en) |
JP (1) | JPS528820Y2 (en) |
CH (1) | CH560254A5 (en) |
DE (1) | DE2354147A1 (en) |
FR (1) | FR2206753A5 (en) |
GB (1) | GB1439683A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050056070A1 (en) * | 2003-06-23 | 2005-03-17 | Carsten Schauhoff | Wire-drawing apparatus and drawing-disk drum for a wire-drawing apparatus |
WO2011095467A3 (en) * | 2010-02-03 | 2011-12-01 | Oerlikon Textile Gmbh & Co. Kg | Device for drawing or guiding synthetic threads |
CN114351306A (en) * | 2022-01-12 | 2022-04-15 | 浙江越剑机电科技有限公司 | Quick guide disc dismounting structure of false twist texturing machine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3701077A1 (en) * | 1986-01-20 | 1987-08-20 | Barmag Barmer Maschf | Galette unit with direct galette drive |
DE4130091C2 (en) * | 1991-09-11 | 1997-10-16 | Barmag Spinnzwirn Gmbh | Group drive for godets |
FR2775697B1 (en) * | 1998-03-04 | 2000-04-14 | Icbt Valence | YARN DELIVERY DEVICE FOR TEXTILE SPINNING MILLING, TEXTURING OR SIMILAR MACHINE |
ES2565636T3 (en) * | 2013-07-20 | 2016-04-06 | TRüTZSCHLER GMBH & CO. KG | Glass pulley for a stretching bench |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1950901A (en) * | 1931-10-03 | 1934-03-13 | Vaughn Machinery Co | Wire drawing mechanism |
US2262247A (en) * | 1940-05-24 | 1941-11-11 | Vaughn Machinery Co | Wire drawing mechanism |
US3296418A (en) * | 1964-04-06 | 1967-01-03 | Monsanto Co | Yarn heater device |
US3463893A (en) * | 1967-04-24 | 1969-08-26 | Teijin Ltd | Temperature control apparatus for rotary heating roller |
-
1972
- 1972-11-10 CH CH1637872A patent/CH560254A5/xx not_active IP Right Cessation
-
1973
- 1973-10-29 DE DE19732354147 patent/DE2354147A1/en active Pending
- 1973-11-08 US US413987A patent/US3921431A/en not_active Expired - Lifetime
- 1973-11-08 FR FR7339659A patent/FR2206753A5/fr not_active Expired
- 1973-11-09 GB GB5213573A patent/GB1439683A/en not_active Expired
- 1973-11-10 JP JP1973129478U patent/JPS528820Y2/ja not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1950901A (en) * | 1931-10-03 | 1934-03-13 | Vaughn Machinery Co | Wire drawing mechanism |
US2262247A (en) * | 1940-05-24 | 1941-11-11 | Vaughn Machinery Co | Wire drawing mechanism |
US3296418A (en) * | 1964-04-06 | 1967-01-03 | Monsanto Co | Yarn heater device |
US3463893A (en) * | 1967-04-24 | 1969-08-26 | Teijin Ltd | Temperature control apparatus for rotary heating roller |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050056070A1 (en) * | 2003-06-23 | 2005-03-17 | Carsten Schauhoff | Wire-drawing apparatus and drawing-disk drum for a wire-drawing apparatus |
WO2011095467A3 (en) * | 2010-02-03 | 2011-12-01 | Oerlikon Textile Gmbh & Co. Kg | Device for drawing or guiding synthetic threads |
CN102741141A (en) * | 2010-02-03 | 2012-10-17 | 欧瑞康纺织有限及两合公司 | Device for drawing or guiding synthetic threads |
CN102741141B (en) * | 2010-02-03 | 2015-01-07 | 欧瑞康纺织有限及两合公司 | Device for drawing or guiding synthetic threads |
CN114351306A (en) * | 2022-01-12 | 2022-04-15 | 浙江越剑机电科技有限公司 | Quick guide disc dismounting structure of false twist texturing machine |
CN114351306B (en) * | 2022-01-12 | 2023-03-07 | 浙江越剑智能装备股份有限公司 | Quick guide disc dismounting structure of false twist texturing machine |
Also Published As
Publication number | Publication date |
---|---|
JPS528820Y2 (en) | 1977-02-24 |
GB1439683A (en) | 1976-06-16 |
DE2354147A1 (en) | 1974-05-22 |
FR2206753A5 (en) | 1974-06-07 |
CH560254A5 (en) | 1975-03-27 |
JPS49108909U (en) | 1974-09-18 |
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