WO2003050334A1 - Method and device for controlling a line of drawing rollers of a textile machine - Google Patents
Method and device for controlling a line of drawing rollers of a textile machine Download PDFInfo
- Publication number
- WO2003050334A1 WO2003050334A1 PCT/FR2002/004161 FR0204161W WO03050334A1 WO 2003050334 A1 WO2003050334 A1 WO 2003050334A1 FR 0204161 W FR0204161 W FR 0204161W WO 03050334 A1 WO03050334 A1 WO 03050334A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinder
- stretching
- cylinders
- toothed belt
- pressure cylinder
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
- D01H1/20—Driving or stopping arrangements
- D01H1/22—Driving or stopping arrangements for rollers of drafting machines; Roller speed control
Definitions
- the present invention relates to the field of textile machines, in particular drawing machines and finishers and relates to a method for controlling a drawing group of a textile machine.
- the invention also relates to a device for implementing this method.
- machine stretching groups such as chain gills, screw intersecting, sun or hedgehog gills, and finishers, such as sleeve wipers and pin benches, are generally formed by a set of two fluted metal cylinders called stretching cylinders, against which is pressurized a cylinder covered with an elastic lining called a pressure cylinder.
- the stretching cylinder which is located in the immediate vicinity of the fiber control zone, has a smaller diameter than the neighboring stretching cylinder, in order to minimize the distance separating the stretching group from the fiber control zone.
- Each stretching cylinder has at its end a pinion through which it receives its rotational movement.
- Such a stretching group is shown schematically, for example, in FR-A-1 456 485, in which the pinions of each stretching cylinder are connected together by an intermediate pinion.
- one of the pinions is a bell pinion inside which the other pinion meshes.
- more recent embodiments provide for the installation of a lubricated casing containing an intermediate shaft with two pinions, in order to connect the pinions of the two stretching cylinders.
- This solution has the advantage of allowing higher speeds of rotation of the stretching cylinders and therefore of increasing the production of textile machines.
- it has the disadvantage of being expensive, of requiring perfect sealing and of causing high heating of the moving parts.
- the elastic material of the pressure cylinder must necessarily compensate by its deformation for these slight differences in speed, which leads to heating of the moving parts, a pulsation which can cause irregularities on the tape or the wick produced by the textile machine, a premature wear of the pressure cylinder linings, overload of the control pinions of the lubricated housing, causing their premature wear, heating and increased operating noise, as well as heating of the lubrication liquid and rapid wear of the seals sealing, which results in leakage of oil or fluid grease.
- the object of the present invention is to overcome these drawbacks by proposing a new method for controlling a stretching unit of a textile machine and a device for implementing this method, enabling lower manufacturing costs to be obtained, and rapid disassembly and reassembly of the stretching cylinders.
- the method of controlling a stretching group of a textile machine comprising two stretching cylinders and a pressure cylinder, which is pressurized against the two stretching cylinders, and possibly a calendering cylinder cooperating with a pressure, is characterized in that it consists essentially in driving in rotation without sliding one of the stretching cylinders and in rotating in friction by the other stretching cylinder.
- the invention also relates to a device for implementing this process, in the form of a stretching unit comprising two stretching cylinders and a pressure cylinder which is pressurized against the two stretching cylinders, and possibly a calendering cylinder cooperating with a pressure cylinder, characterized in that one of the stretching cylinders is rotated by a toothed belt meshing on a pinion integral with this first stretching cylinder, and the other stretching cylinder is rotated by a friction device.
- FIGS. 1 to 3 are plan views showing the kinematic chains of three alternative embodiments of a stretching group according to the invention
- Figure 4 is a side elevational view of a drawing unit according to the invention
- Figure 5 is a representation of the mounting of a drawing cylinder according to the invention.
- the control method of a stretching group of a textile machine comprising two stretching rollers 1 and 2 mounted on bearings 6 and a pressure cylinder 3, which is put under pressure against the two stretching cylinders 1 and 2, and possibly a calendering cylinder 16 cooperating with a pressure cylinder 18, essentially consists in driving in rotation without sliding one of the stretching cylinders 1 and in driving in rotation by friction the other stretching cylinder 2.
- This process is implemented by a device in the form of a stretching group comprising two stretching cylinders 1 and 2, mounted on bearings 6, and a pressure cylinder 3 provided with an elastic coating, which is put under pressure against the two stretching cylinders 1 and 2, and possibly a calendering cylinder 16 cooperating with a pressure cylinder 18.
- the first stretching cylinder 1 has a smaller diameter than the second stretching cylinder 2, so that the distance separating the control zone 4 of the fibers and the pinching line of the fibers, constituted by the contact zone of the pressure cylinder 3 against the stretching cylinder 1, which is as low as possible.
- the stretching cylinders 1 and 2 are fluted helically and are mounted on bearings 5 (FIG. 5) inside bearings 6 which are integral of the machine frame.
- the first stretching cylinder 1 has at one of its ends, a toothed pinion 7 rotated by means of a toothed belt 8, itself driven by a toothed pinion 9 driven in rotation by a motor 10, by the intermediate of a kinematic chain (not shown).
- one of the stretching cylinders 1 is rotated by a toothed belt 8, meshing on a pinion 7 integral with this first stretching cylinder 1, and the other stretching cylinder 2 is rotated by a device friction.
- the friction device is in the form of an notched belt 12 rotating in rotation a smooth pulley 11 secured to the second stretching cylinder 2.
- the drive carried out by cooperation of an notched belt 12 with a smooth pulley 11 is not perfectly positive, slight sliding of one over the other is authorized and absorbed by the belt non-toothed 12 and not by the lining of the pressure cylinder 3.
- the dimensions and characteristics of the non-toothed belt 12 and the pulley 11 are determined in such a way that the stretching cylinder or cylinders 2 are driven almost positively, that is that is, as soon as there is a difference in peripheral speed of one of the stretching cylinders 1 relative to the other 2 or relative to the pressure cylinder 3, it is the belt 12 ell itself which slides on its pulley 11 and absorbs the difference in speed and not the lining of the pressure cylinder 3.
- the second stretching cylinder 2 has at one of its ends a pulley preferably smooth 11 and with a domed rim, rotated by means of an notched belt, preferably a flat belt 12 itself driven by an intermediate pulley 13 mounted on an intermediate axis 14. On this same intermediate axis 14 is mounted an intermediate toothed pinion 15 driven in rotation by the toothed belt 8.
- the motor 10 drives the first stretching cylinder 1 positively and without possible sliding, while the second stretching cylinder 2 is driven by the friction device which consists of the smooth pulleys 11 and 13 and the non-toothed belt 12.
- the friction device acts as soon as a slight difference in peripheral speed tends to appear between the pressure cylinder 3 and the second stretching cylinder 2 by allowing the non-toothed belt 12 to slide on one of the smooth pulleys 11 or 13.
- the non-toothed belt 12 absorbs the sliding energy caused by slight differences in speed of one member with respect to the other, the coating of the pressure cylinder 3 then being preserved.
- Figure 4 of the accompanying drawings is a side elevational view of a stretching unit according to the invention.
- the tension of the notched belt 12 is adjustable by modifying the distance between the axes of the smooth pulleys 11 and 13.
- the smooth pulley 13 is integral with the axis 14 mounted on a bearing inside a bearing 20 articulated around an axis of articulation 21.
- the articulated bearing 20 can oscillate around the axis of articulation 21 and move relative to the frame of the machine, so as to modify the distance between axes of the smooth pulley 13 relative to the smooth pulley 11.
- a locking means 22, such as a screw and nut assembly, allows the bearing 20 to keep a stable position relative to the frame of the machine.
- the tension of the toothed belt 8 is also adjustable by means of a tensioner 23, the position of which can be modified relative to the frame of the machine. To ensure correct operation of the friction device, the tension of the non-toothed belt 12 is first adjusted, then the tension of the toothed belt 8 is adjusted.
- the notched belt 12 can also be driven directly by means of the calender cylinder 16, the intermediate pulley 13 then being mounted on the axis of the latter and the tension of said non-toothed belt 12 being ensured by means of a tension roller located on the path of said belt.
- the bearing 20, the articulation 21 and the locking means 22 are eliminated.
- the friction device can be constituted by the contact between the pressure cylinder 3 and the stretching cylinders 1 and 2 (FIG. 3).
- the first stretching cylinder 1 is rotated without sliding by means of a toothed belt 8 and a toothed pinion 7 secured to the stretching cylinder 1.
- the toothed belt 8 cooperates with the toothed pinion 9, as indicated above.
- the first stretching cylinder 1 transmits, by surface contact, its rotational movement to the pressure 3.
- the latter then transmits the rotational movement, also by surface contact, to the second stretching cylinder 2.
- the second stretching cylinder 2 acquires the same peripheral speed as that of the pressure cylinder 3.
- at least one of the cylinders comprising the stretching group is mounted on bearings 6 with removable caps, to facilitate disassembly and reassembly of said stretching cylinder.
- each bearing 6 consists of a support 24a secured to the frame of the machine and a removable cap 24b.
- the support 24a and the removable cap 24b each have a semi-cylindrical bearing surface adjusted to the outside diameter of the bearing 5.
- the textile machine when the textile machine is equipped with a calender cylinder 16 cooperating with a pressure cylinder 18, the toothed belt 8 meshes, in addition, with a toothed pinion 17 mounted at one end of said calender cylinder 16.
- a calendering cylinder 16 which is helically grooved, is mounted on bearings inside bearings integral with the frame of the machine, in the same way as the stretching cylinders 1 and 2.
- the pressure cylinder 18, which is put under pressure against the calendering cylinder 16, acquires the same peripheral speed as that of the calendering cylinder 16.
- the peripheral speed of the calendering cylinder 16 is necessary to be able to adjust the peripheral speed of the calendering cylinder 16 relative to that of the stretching unit. Indeed, in certain cases, the textile material must be more or less stretched, or sometimes even relaxed between the stretching group and the calender roll.
- the tension that is to say the peripheral speed ratio of the calendering cylinder relative to the stretching group, can be modified by changing the toothed pinion 17.
- the precision of this adjustment depends on the number of teeth of the pinion 17.
- the calender cylinder 16 when the textile machine is equipped with a calender cylinder 16 cooperating with a pressure cylinder 18, the calender cylinder 16 can be driven by friction, by provision at one of its ends for a smooth pulley 19 rotated by the notched belt 12.
- the tension that is to say the peripheral speed ratio of the calender cylinder 16 relative to the stretching group, is also modifiable by changing the smooth pulley 19.
- the precision of this adjustment is finer, because it depends on the diameter of the smooth pulley 19 and not on a whole number of teeth.
- the toothed belt 8 when the textile machine does not have a calender cylinder, the toothed belt 8 cooperates with a toothed pinion 17 mounted to rotate freely in a bearing on the frame of the machine, in an eccentric position with respect to a straight line connecting the axes of the smooth pulleys 11 and 13.
- the toothed belt 8 is forced to make a detour identical to that which it would make if the machine was equipped with a calender cylinder.
- the invention it is possible to produce a new stretching group of less expensive manufacture than the existing groups currently.
- such a group no longer requires maintenance and is no longer subject to lubricant leaks.
- the linings of the pressure cylinders are provided and said stretching group no longer generates pulsations of said linings, pulsations which were sometimes responsible for textile defects on ribbons or wicks.
- the moving members of the stretching unit in accordance with the invention thus reach a maximum temperature in operation much lower than that of known devices. previously.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Looms (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02802534A EP1451397B1 (en) | 2001-12-05 | 2002-12-03 | Method and device for controlling a line of drawing rollers of a textile machine |
AU2002364920A AU2002364920A1 (en) | 2001-12-05 | 2002-12-03 | Method and device for controlling a line of drawing rollers of a textile machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR01/15734 | 2001-12-05 | ||
FR0115734A FR2833021B1 (en) | 2001-12-05 | 2001-12-05 | METHOD AND DEVICE FOR CONTROLLING A DRAWER GROUP OF A TEXTILE MACHINE |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003050334A1 true WO2003050334A1 (en) | 2003-06-19 |
Family
ID=8870145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/004161 WO2003050334A1 (en) | 2001-12-05 | 2002-12-03 | Method and device for controlling a line of drawing rollers of a textile machine |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1451397B1 (en) |
CN (1) | CN100344812C (en) |
AU (1) | AU2002364920A1 (en) |
FR (1) | FR2833021B1 (en) |
RU (1) | RU2293805C2 (en) |
WO (1) | WO2003050334A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103741284A (en) * | 2013-12-20 | 2014-04-23 | 张家港市天江精密模具制造有限公司 | Textile roving frame flyer |
CN112709795A (en) * | 2020-12-23 | 2021-04-27 | 张振斌 | Transmission device for adjusting and controlling motor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1327532A (en) * | 1970-09-11 | 1973-08-22 | Schubert & Salzer Maschinen | Method and apparatus for drawing slivers |
DE4122883A1 (en) * | 1991-07-11 | 1993-01-14 | Schurr Stahlecker & Grill | Drawing unit for spinning machine - has lower roller mounting to detach it from drive shaft for belt change without stopping the spinner |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2715754A (en) * | 1953-11-05 | 1955-08-23 | Earl Heard Jr M | Drafting system |
-
2001
- 2001-12-05 FR FR0115734A patent/FR2833021B1/en not_active Expired - Fee Related
-
2002
- 2002-12-03 CN CNB028240944A patent/CN100344812C/en not_active Expired - Fee Related
- 2002-12-03 RU RU2004120271/12A patent/RU2293805C2/en not_active IP Right Cessation
- 2002-12-03 AU AU2002364920A patent/AU2002364920A1/en not_active Abandoned
- 2002-12-03 WO PCT/FR2002/004161 patent/WO2003050334A1/en not_active Application Discontinuation
- 2002-12-03 EP EP02802534A patent/EP1451397B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1327532A (en) * | 1970-09-11 | 1973-08-22 | Schubert & Salzer Maschinen | Method and apparatus for drawing slivers |
DE4122883A1 (en) * | 1991-07-11 | 1993-01-14 | Schurr Stahlecker & Grill | Drawing unit for spinning machine - has lower roller mounting to detach it from drive shaft for belt change without stopping the spinner |
Also Published As
Publication number | Publication date |
---|---|
RU2293805C2 (en) | 2007-02-20 |
CN1599811A (en) | 2005-03-23 |
CN100344812C (en) | 2007-10-24 |
AU2002364920A1 (en) | 2003-06-23 |
FR2833021B1 (en) | 2004-05-28 |
EP1451397B1 (en) | 2006-02-01 |
RU2004120271A (en) | 2005-03-10 |
EP1451397A1 (en) | 2004-09-01 |
FR2833021A1 (en) | 2003-06-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1451397B1 (en) | Method and device for controlling a line of drawing rollers of a textile machine | |
FR2917661A1 (en) | Device for driving and cutting a strand of glass fibers with respect to their spread on a roadway, comprises a rotatively cutting motor roller associated to a rotative pressure roller, and a maintenance roller in upstream of the roller | |
EP1016742B1 (en) | Mounting apparatus of a cylindrical cleaning brush with automatic wear compensation for a cylindrical comb of a rectilinear comber | |
FR2486609A1 (en) | GEAR FOR BELT TRANSMISSION | |
FR2578242A1 (en) | APPARATUS FOR THE MANUFACTURE OF GLASS FIBER CUTTING YARNS | |
CA2208433A1 (en) | Needle loom with a sliding shank | |
EP0417021B1 (en) | Apparatus for automatic wear compensation of the combing machine round brush | |
CH668576A5 (en) | ROTARY CUTTING DEVICE. | |
EP0534911A1 (en) | Machine for manufacturing chenille yarns | |
EP0305305B1 (en) | Device for imparting a false-twist by friction to at least one advancing yarn | |
EP0248768A1 (en) | Device for a continuously working spinning machine | |
FR2861094A1 (en) | DEVICE ON A STRETCH BENCH FOR TEXTILE MACHINES HAVING ROLLER PAIRS POSITIONED ONE AFTER THE OTHER AND A CLEANING DEVICE FOR EACH UPPER ROLL | |
CH618751A5 (en) | ||
CH626124A5 (en) | ||
FR2545849A1 (en) | DRIVE DEVICE FOR FRICTION SPINNING DEVICE | |
FR2775697A1 (en) | YARN DELIVERY DEVICE FOR TEXTILE SPINNING MILLING, TEXTURING OR SIMILAR MACHINE | |
CN109518330B (en) | Yarn pulling device of spinning frame for producing bunchy yarn | |
EP0616060A1 (en) | Apparatus for drawing, by falsetwisting, textile fibre tows intended for spinning | |
FR2584022A3 (en) | INK ROLLER FOR PRINTING MACHINES WITH AUTONOMOUS TRANSLATION MOVEMENT | |
JPH0519721U (en) | Variable diameter pulley | |
FR2736658A1 (en) | DEVICE FOR INSERTING A BLIND THREAD INTO A WICK OF FIBERS | |
FR2571346A1 (en) | Apparatus for folding (coiling) of textile slivers (rovings) | |
BE571482A (en) | ||
BE499634A (en) | ||
BE474735A (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1360/DELNP/2004 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002802534 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20028240944 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004120271 Country of ref document: RU |
|
WWP | Wipo information: published in national office |
Ref document number: 2002802534 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2002802534 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: JP |