US3460215A - Relaxation apparatus for a draw winder for synthetic threads - Google Patents

Relaxation apparatus for a draw winder for synthetic threads Download PDF

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Publication number
US3460215A
US3460215A US688911A US3460215DA US3460215A US 3460215 A US3460215 A US 3460215A US 688911 A US688911 A US 688911A US 3460215D A US3460215D A US 3460215DA US 3460215 A US3460215 A US 3460215A
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US
United States
Prior art keywords
guide roller
roller
carrier
thread
draw winder
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
US688911A
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English (en)
Inventor
Felix Graf
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
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Maschinenfabrik Rieter AG
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Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • 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
    • D02J1/229—Relaxing

Definitions

  • the relaxation apparatus is pivotally mounted with respect to the drawing roller of the draw winder in a precise manner about an axis perpendicular to the plane of the thread windings between the drawing roller and lower adjacent guide roller.
  • the upper auxiliary guide roller is independently mounted for pivoting about an axis perpendicular to the plane of the thread windings between the heating element and auxiliary guide roller.
  • This invention relates to a draw winder. More particularly, this invention relates to a relaxation apparatus for a draw winder as used in the manufacture of synthetic fiber.
  • the guide rollers of relaxation units disposed adjacent a drawing roller of a draw winder for synthetic threads have been secured to the draw winder frame in a manner which required loosening of the guide roller each time a change in the inclination of the thread loops about the drawing roller and guide .roller was necessitated. Further, after loosening and orienting of the axis of the guide roller to the desired position, the guide roller required securement in place as by bolting.
  • a reliable precision adjustment of the axis of the guide roller has frequently not been possible in these situations. This is disadvantageous as the exact maintenance of the prescribed inclination of the guide roller axis and the consequent controlled distances between individual thread loops is necessary to the production of a thread of quality.
  • Thread regulators have been known to have a single guide roller which is positioned adjacent to a drawing roller at a thread brake swingable about an axis parallel to the drawing roller axis. However, turning of such a guide roller does not cause any change in the spacing of the thread loops in operation.
  • the invention provides a draw winder for highpolymer monoor multi-filaments or threads with a relaxation apparatus which is adjustable in a manner to vary the angle of inclination between the drawing roller of the draw winder and the relaxation apparatus.
  • the relaxation apparatus includes a guide roller positioned adjacent the drawing roller, an auxiliary guide roller and a heating element between the guide rollers about which a thread from the drawing roller is wound.
  • the guide rollers and heating element are mounted on a base carrier which is adjustably pivotally mounted on the draw winder frame about an axis essentially perpendicular to a tangential plane of the thread segments at the winding position of the thread from the drawing roller to the ad jacent guide roller.
  • the auxiliary guide roller is adjustably mounted on the carrier by means of an adjusting means in a manner so as to be pivoted with respect to the axis of the carrier.
  • the base carrier is provided at its upper end with an adjusting means for pivoting the carrier relative to the winder frame so that the guide roller adjacent the drawing roller can be pivoted in a simple precise manner about the axis perpendicular to the tangential plane of the thread segments between the drawing roller and guide roller, that is, in a plane substantially parallel to the tangential plane.
  • the auxiliary guide roller is also pivotable relative to the heating element, the length of the thread segments between the auxiliary guide roller and heating element can also be precisely varied.
  • the upper end of the heating element is of width about equal to the diameter of the auxiliary guide roller, the auxiliary guide roller is pivoted in the plane of the guide roller axes of the relaxation apparatus.
  • the heating element is greater in width than the auxiliary guide roller, the auxiliary guide roller is pivoted in a plane parallel to a tangential plane of the thread segments between the heating element and auxiliary guide roller.
  • a number of relaxation units are mounted on a common rail means which is pivotally secured to the draw winder frame so that adjustments of a number of guide rollers can be accomplished simultaneously.
  • FIG. 1 illustrates a perspective view of a draw winder incorporating a relaxing device of the invention
  • FIG. 2 illustrates a front view of an arrangement of a heating element, guide rollers and draw roller according to the invention
  • FIG. 3 illustrates a side view of the base carrier of the invention mounted on the frame of the draw winder
  • FIG. 4 illustrates a side view of the adjusting means for adjusting the inclination of the auxiliary guide roller relative to the carrier
  • FIG. 5 illustrates a view of a modified arrangement according to the invention.
  • the draw winder has a plurality of drawing zones 1 each of which includes a pair of low speed feed rollers 2 and a drawing roller 3 which rotates at a higher speed than the feed rollers in order to stretch threads of monoor multi-filaments between the feed rollers 2 and drawing roller 3.
  • a thread relaxing apparatus is disposed adjacent the drawing roller 3 in order to relax the tension in the stretched thread.
  • the relaxing apparatus includes a rotatable guide roll 4 which is driven by the thread windings 5 and supported on a base carrier 6 adjacent the drawing roller 3, a heating element 7 and an auxiliary guide roller 8 which are also supported on the base 6.
  • the base carriers 6, 6, 6" are formed as a group and are pivotally mounted as a unit to a frame 9 of the draw winder about a pivot axis 10.
  • the pivot axis 10 is located between the drawing roller 3 and guide roller 4 and is perpendicular to the plane E of the thread segments 11 3 which extend in a tangential plane between the drawing roller 3 and the guide roller 4 (FIG. 2).
  • the tangential plane E is intentionally oriented vertically to the longitudinal axis of the draw winder since such is constructionally advantageous and allow the base carriers 6, 6, 6" which are arranged in parallel relation to the longitudinal axis of the draw winder to be pivoted as a group about the common pivot axis 10.
  • An L-shaped rail 13 secured to the lower position of the base carrier group is used to mount the base carrier group about the pivot axis 10.
  • the rail 13 has a horizontal flange 14 secured to the frame 9, as by screws, and a vertical flange 15 secured to the bottoms of the base carriers 6, 6', 6".
  • the juncture between the flanges 14, 15 of the rail 13 corresponds theoretically with the pivot axis of the base carrier group.
  • the flanges 14, which form a mutual included angle a are deformable with respect to each other such that the included angle at can be varied.
  • a regulating means is secured between the frame 9 and the upper end of the base carriers.
  • This regulating means includes a rail 18 which is fixed to each base carrier of the group and at least two adjustment screws 17 which pass through the rail 18 and are threaded into suitable tap holes 16 in the frame 9. Since only a small degree of adjustment is needed, the connection of the rail 18 with each adjustment screw 17 is obtained in a simple manner by having each screw 17 pass through a slightly larger bore 19 than the screw in the rail 18 and by securing each screw 17 on both sides of the rail 18 by means of deformable washers 20 and nuts 21.
  • the auxiliary guide roller 8 is secured to an adjusting means mounted in the upper end of the base carrier 6.
  • This adjusting means includes a flat spring 22 which is pivotally secured, as by a bolt, to the base carrier on an axis U passing through the upper end of the heating element 7 and to which the auxiliary guide roller 8 is fixedly secured.
  • an adjustment screw 23 is threadably mounted in the base carrier to abut the upper end of the fiat spring 22 on the opposite side of the auxiliary guide roller 8 in order to move the upper end of the flat spring 22 from the base carrier 6.
  • the distance between the ends of the convex heating surfaces of the heating element 7 contacting the thread segments correspond approximately to the diameter of the respective guide rollers 4, 8 so that the pivot plane of the auxiliary guide roller axis coincides with a plane E passing through both guide roller axes.
  • This plane E is essentially parallel to the tangential plane E as well as to a similarly formed plane of the thread segments between the auxiliary guide roller 8 and upper end of the heating element 7.
  • the orienting of the auxiliary guide roller 24 to a tangential plane T containing the thread segments between the guide roller 24 and heating elements as shown is accomplished in an alternative manner than that above.
  • the auxiliary guide roller 24 is secured to a leaf spring 26 which in turn is secured to a base carrier 27 by means of a screw as above.
  • this adjustment screw 28 is positioned at a point A in a plane P parallel to the tangential plane T of the thread segments.
  • the pivot axis S of the leaf spring 26 about the screw 25 is perpendicular to the tangential plane T or P at the upper end of the heating element.
  • the inclination of the auxiliary guide roller 8 (FIG. 4) with respect to the lower guide roller 4 is adjustable in a range of from 1 to 2%
  • the base carrier groups are adjustable with respect to the draw winder frame 9 (FIG. 3) so as to adjust the angle of the lower guide roller 4 with respect to the axis of the draw roller 3 in a range of from 2 to 5. That is, the angle of inclination a of the flanges of the rail 13 is equal to 90i(2 to 5).
  • a thread relaxation apparatus comprising a carrier pivotally mounted at one end to said draw winder, a guide roller mounted on said carrier adjacent said drawing roller, an auxiliary guide roller mounted on said carrier, and a heating element mounted on said carrier between said guide rollers; and means for pivoting said carrier on said draw winder relative to said drawing roller about an axis essentially perpendicular with respect to a tangential plane between said drawing roller and said guide roller.
  • said means includes a rail secured to an opposite end of said carrier and an adjustment screw connected to said rail and adjustably secured to said draw winder for moving said opposite end of said carrier relative to said draw winder.
  • auxiliary guide roller is pivotally mounted on said carrier about a second axis essentially perpendicular to a tangential plane between said heating element and said auxiliary guide roller.
  • pivoting means includes a second common rail secured to an opposite end of said carrier of each relaxation apparatus and at least a pair of adjustment screws connected to said second common rail and adjustably secured to said draw winder for pivoting said relaxation apparatus simultaneously with respect to said draw winder.
  • a thread relaxation apparatus comprising a carrier pivotally mounted at one end relative to said drawing roller, a guide roller mounted on said carrier adjacent said drawing roller, an auxiliary guide roller mounted on said carrier, and a heating element mounted on said carrier between said guide rollers; and means for pivoting said carrier relative to said drawing roller about an axis essentially perpendicular with respect to a tangential plane containing the synthetic thread segments between said drawing roller and said guide roller.
  • auxiliary guide roller is pivotally mounted on said carrier about a second axis essentially perpendicular to a tangential plane between said heating element and said auxiliary guide roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
US688911A 1967-02-20 1967-12-07 Relaxation apparatus for a draw winder for synthetic threads Expired - Lifetime US3460215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH261267A CH451394A (de) 1967-02-20 1967-02-20 Relaxiervorrichtung für verstreckte Fäden

Publications (1)

Publication Number Publication Date
US3460215A true US3460215A (en) 1969-08-12

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ID=4237679

Family Applications (1)

Application Number Title Priority Date Filing Date
US688911A Expired - Lifetime US3460215A (en) 1967-02-20 1967-12-07 Relaxation apparatus for a draw winder for synthetic threads

Country Status (4)

Country Link
US (1) US3460215A (de)
CH (1) CH451394A (de)
DE (1) DE1660500B2 (de)
GB (1) GB1219502A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633353A (en) * 1969-05-13 1972-01-11 Rieter Ag Maschf Apparatus for eliminating vapor and condensate from drawing arrangements
US3724191A (en) * 1969-12-16 1973-04-03 Tmm Research Ltd Treatment of synthetic yarns
US5287634A (en) * 1992-02-07 1994-02-22 United States Surgical Corporation Removal of vaporizable components from polymeric products
US5294389A (en) * 1991-06-14 1994-03-15 United States Surgical Corporation Dynamic treatment of suture strand
CN102839436A (zh) * 2012-09-27 2012-12-26 北京中丽制机工程技术有限公司 长丝牵伸卷绕装置
CN103935826A (zh) * 2014-04-21 2014-07-23 新昌县万事发纺织机械有限公司 一种全自动缝纫线精密拉伸定型络筒机及其使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111020763B (zh) * 2019-12-12 2021-04-27 枣阳市华星纺织有限公司 一种纺织生产加工用混纺设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB843905A (en) * 1958-01-14 1960-08-10 Onderzoekings Inst Res Method and apparatus for heating continuously moving threads or yarns
US3101990A (en) * 1960-10-13 1963-08-27 Du Pont Process of drawing filamentary structures
FR1464268A (fr) * 1964-12-23 1966-12-30 Glanzstoff Ag Dispositif de chauffage et de fixage pour des fils thermoplastiques
US3295182A (en) * 1964-12-23 1967-01-03 Allied Chem Yarn treatment
CH432710A (de) * 1965-09-22 1967-03-31 Rieter Ag Maschf Verfahren und Vorrichtung zum Relaxieren von hochpolymeren Mono- oder Multifilamenten im Anschluss an den Streckprozess und eine Vorrichtung zur Durchführung des Verfahrens
US3351991A (en) * 1964-09-14 1967-11-14 Allied Chem Adjustable heater bracket assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB843905A (en) * 1958-01-14 1960-08-10 Onderzoekings Inst Res Method and apparatus for heating continuously moving threads or yarns
US3101990A (en) * 1960-10-13 1963-08-27 Du Pont Process of drawing filamentary structures
US3351991A (en) * 1964-09-14 1967-11-14 Allied Chem Adjustable heater bracket assembly
FR1464268A (fr) * 1964-12-23 1966-12-30 Glanzstoff Ag Dispositif de chauffage et de fixage pour des fils thermoplastiques
US3295182A (en) * 1964-12-23 1967-01-03 Allied Chem Yarn treatment
CH432710A (de) * 1965-09-22 1967-03-31 Rieter Ag Maschf Verfahren und Vorrichtung zum Relaxieren von hochpolymeren Mono- oder Multifilamenten im Anschluss an den Streckprozess und eine Vorrichtung zur Durchführung des Verfahrens

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633353A (en) * 1969-05-13 1972-01-11 Rieter Ag Maschf Apparatus for eliminating vapor and condensate from drawing arrangements
US3724191A (en) * 1969-12-16 1973-04-03 Tmm Research Ltd Treatment of synthetic yarns
US5294389A (en) * 1991-06-14 1994-03-15 United States Surgical Corporation Dynamic treatment of suture strand
US5287634A (en) * 1992-02-07 1994-02-22 United States Surgical Corporation Removal of vaporizable components from polymeric products
CN102839436A (zh) * 2012-09-27 2012-12-26 北京中丽制机工程技术有限公司 长丝牵伸卷绕装置
CN102839436B (zh) * 2012-09-27 2015-06-10 北京中丽制机工程技术有限公司 长丝牵伸卷绕装置
CN103935826A (zh) * 2014-04-21 2014-07-23 新昌县万事发纺织机械有限公司 一种全自动缝纫线精密拉伸定型络筒机及其使用方法
CN103935826B (zh) * 2014-04-21 2016-06-08 浙江万事发纺织机械有限公司 一种全自动缝纫线精密拉伸定型络筒机及其使用方法

Also Published As

Publication number Publication date
DE1660500A1 (de) 1971-09-16
GB1219502A (en) 1971-01-20
DE1660500B2 (de) 1977-01-27
CH451394A (de) 1968-05-15

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