EP0562075A1 - Device for spin-drawing thermoplastic filament yarns. - Google Patents
Device for spin-drawing thermoplastic filament yarns.Info
- Publication number
- EP0562075A1 EP0562075A1 EP92920356A EP92920356A EP0562075A1 EP 0562075 A1 EP0562075 A1 EP 0562075A1 EP 92920356 A EP92920356 A EP 92920356A EP 92920356 A EP92920356 A EP 92920356A EP 0562075 A1 EP0562075 A1 EP 0562075A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- godet
- thread
- godets
- plane
- rotation
- 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.)
- Granted
Links
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 6
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 6
- 238000009987 spinning Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 description 14
- 238000000926 separation method Methods 0.000 description 12
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- 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
Definitions
- the invention relates to a device for spinning draw of at least two thermoplastic filament yarns on at least two godet duos, each consisting of two rotatable godets, of which at least one godet is driven and the axes of rotation of which lie skewed to one another and are arranged such that the axis of rotation of one Galette is pivotally arranged within a plane and this plane forms an angle with another plane.
- thermoplastic filament yarns such as polyesters, polyamides and the like
- stretching devices with two or more roller or godet duos are used (DE-A-1 907 782).
- the axes of rotation of the rolls within the godet duo units are slightly inclined towards one another in order to produce a specific winding pitch of the thread placed thereon. Accordingly, the two axes of rotation lie within a common plane. Any necessary change in the winding pitch can be easily made by changing the angle that the two axes of rotation form with one another.
- the object of the invention is to provide a device for spinning of two or more filament yarns, which ensures the maintenance of a sufficient spatial separation between the individual yarn wraps on the godet duos.
- the object is achieved according to the invention in that the angle ⁇ is 10 ° -60 °.
- the axes of the godets each belonging to a godet duo are arranged so that they can be pivoted relative to one another in such a way that the pivoting plane of a godet axis forms the intersection angle ⁇ with the plane of connection of the godet axes, which contains both the center point of this axis and the other godet axis.
- a working width of the godets from 250 mm to 400 mm, in particular from 250 mm to 350 mm, has the advantage that several threads can be treated at the same time and several turns can be placed on the godet duo. Such large working widths can only be meaningfully exploited using the arrangement of the axes of rotation of the godets according to the invention
- Fig. 1 shows the arrangement of the godets in a drafting system according to the invention
- Fig. 2 is a side view of two godet duos with thread running
- FIG. 4 shows a graphical representation of the winding gradients on a godet duo as a function of the axis coordinate and the angle , .beta.
- Fig. 5 is a graphical representation of the
- reference numerals 1 to 1 ' represent a first godet of two godet duos.
- the second galette of the godet duos is designated 2 to 2 '.
- a filament yarn 3 is passed over the godet duos 1, 2 and 1 ', 2'.
- Peg pairs 4-4 'and 5-5' are provided for suspending the godets in the drafting system.
- FIG. 2 the godet duos 1, 2; 1 ', 2' in side view, only the godet 1 of the godet duo 1, 2 and the godet 1 'of the godet duo 1', 2 'being visible.
- a filament yarn group 3 consisting of the filament yarns 3 ', 3'',3''and3' 11 ', is placed on the godet 1 coming from below and leaves the godet 1' after each loop of the two godet duos five times.
- B Q means that Width of the thread sheet when entering Gallete 1, B- j the width of the thread sheet when leaving the godet 1 and B 2 the width of the thread sheet when leaving the godet 2.
- Galette 1 is mounted rotatably about an axis of rotation 7.
- Galette 2 is rotatably mounted about an axis of rotation 8.
- the axes of rotation 7 and 8 are skew to each other, i.e. they also have no intersection in their extension.
- a plane 10 is determined by the axis of rotation 7 and the center 9 of the axis of rotation 8.
- the parallel 11 to the axis of rotation 7 through the center 9 is the intersection between the plane 10 and a plane 12.
- the two planes 10 and 12 intersect at an angle ⁇ .
- the axis of rotation 8 forms an intersection angle ⁇ with the parallel 11.
- the godets 1 and 1 'and 2 and 2' combined to form a pair of godets are pivotally mounted on a pair of pins 4 and 4 'and 5 and 5'.
- the pairs of pins 4 and 4 'and 5 and 5' are arranged with each other but not parallel to each other. It is thereby achieved that the pivoting planes of the godets 1 and 1 'form an intersection angle with the connecting planes. This could be achieved just as well by vertically displacing the godets belonging to a godet duo.
- a vertical arrangement of the godets would significantly increase the overall height of the machine and would make it disproportionately difficult to operate.
- the suspension of the godets shown on pairs of pins is exemplary and only one of the possible technical solutions for realizing the invention.
- the spatial orientation of the axes of rotation of the godets relative to one another is essential for the invention.
- Galette 1 'of the godet duo 1', 2 'fed which is looped five times in the same way.
- the representation of four filament yarns is to be understood as an example and without limitation.
- the problem solved according to the invention applies analogously to each thread count greater or two.
- the lines shown only indicate the zones on the circumference of the godet on which the fila dewaxing 3 '3'',3''' and 3 ''' 1 are positioned.
- the lateral extent of the filament yarns is not shown.
- the outer of the four filament yarns 3 'and 3''''shown are drawn more strongly than the inner filament yarns 3''and
- the axis of rotation of the second godet is pivoted relative to the first one in such a way that the desired winding pitch of the filament yarns is achieved.
- the decrease in the winding pitch along the galet The axis from the run-up zone to the run-off zone can be clearly seen.
- the original total width B Q of the thread sheet 3 present at the inlet is reduced to the width B- j at the outlet.
- the width of the thread sheet 3 is to be understood as the center of gravity of the first and last of the filament yarns passed over the roller duo.
- the axis of rotation of the godet 1 is oriented obliquely to the axis of rotation of the godet 2 within the plane 12.
- the intersection angle ⁇ between levels 10 and 12 is 90 °.
- the godet duo 1,2 is wrapped five times by a thread.
- the winding pitch between the individual wraps increases on the godet duo 1, 2 from the casserole to the drain from 30.5 mm by 4 mm to 26.5 mm.
- the turn gradient as a function of the axis coordinate is shown graphically in FIG. 4, curve a.
- the godet arrangement according to Example 1 is modified such that the cutting angle between plane 10 and plane 12 is 35 °.
- the decrease in the winding pitch along the godet axis is less than 1 mm.
- the turn gradient as a function of the axis coordinate is shown graphically in FIG. 4, curve b.
- a pair of godets as' in Example 1 is four Filament ⁇ yarns five times gen umschlun ⁇ over its entire working width.
- the winding pitch of the first Fadenumwindung the first thread is 77 mm.
- This results in a separation efficiency SW of 0.41 ie the original width of the thread sar is reduced to 41%.
- Two rotating godets 300 mm in length and 190 mm in diameter are wrapped five times by four filament yarns as in Example 3.
- the axes of the two godets are not oriented skew to one another, but lie within one plane, ie planes 10 and 12 are coplanar, the cutting angle ⁇ is equal to 0.
- the pitch of the first thread winding of the first thread is 58 mm.
- up to the point where the threads run from this godet duo 34.8 mm. This results in a separation efficiency SW of 0.804.
- Two rotating godets 300 mm in length and 190 mm in diameter are looped five times over their entire working width as in Example 3 by four filament yarns.
- the axes of the two godets are skew to each other. Their mutual orientation is varied in such a way that the intersection angle between planes 10 and 12 takes on different values between 10 ° and 80 °.
- the influence of the cutting angle ß on the width of the thread bundle B Q at the inlet and B 1 at the outlet of the godet duo was determined and the degree of separation SW was calculated from this.
- Table 1 together with those of Examples 3 and 4. It can be seen from this that the values for the degree of separation SW do not change monotonically with the cutting angle, but run through a maximum. This curve is shown graphically in FIG. 5, curve a.
- the separation effect SW depends in a non-monotonous manner on the angle ⁇ of the suspension of the godet duo.
- an angle range of 10 ° ⁇ ⁇ 60 ° was found in the investigations, within which the separation effect SW runs through a maximum.
- the resulting distance between threads with a width of 5 mm after the passage of four godet duos is at least twice as large as known. .
- the higher level of operational safety achieved thereby results in a better guarantee of the quality of the filament yarn produced, and on the other hand enables or at least facilitates the transition to the simultaneous treatment of two or more threads.
- the result is a significant increase in the productivity of the spin-stretching process compared to the one-end process.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Dispositif d'étirage à extrémités multiples de fils continus thermoplastiques sur au moins deux duos de cylindres d'étirage (1, 2 et 1', 2') dont les axes de rotation (7) et (8) sont inclinés l'un par rapport à l'autre de sorte que l'axe de rotation (8) d'un des cylindres d'étirage (2) peut pivoter dans un plan (12) et que ce plan (12) forme un angle (beta) de 10° à 60° avec le plan (10). Le dispositif permet pour la première fois de filer et d'étirer simultanément à plusieurs extrémités.Multi-end stretching device for continuous thermoplastic wires on at least two pairs of stretching cylinders (1, 2 and 1 ', 2') whose axes of rotation (7) and (8) are inclined one by relative to each other so that the axis of rotation (8) of one of the drawing cylinders (2) can pivot in a plane (12) and that this plane (12) forms an angle (beta) of 10 ° to 60 ° with the plane (10). The device allows for the first time to spin and stretch simultaneously at several ends.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3023/91 | 1991-10-15 | ||
CH302391 | 1991-10-15 | ||
PCT/CH1992/000203 WO1993008320A1 (en) | 1991-10-15 | 1992-10-07 | Device for spin-drawing thermoplastic filament yarns |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0562075A1 true EP0562075A1 (en) | 1993-09-29 |
EP0562075B1 EP0562075B1 (en) | 1996-03-13 |
Family
ID=4246903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92920356A Expired - Lifetime EP0562075B1 (en) | 1991-10-15 | 1992-10-07 | Device for spin-drawing thermoplastic filament yarns |
Country Status (8)
Country | Link |
---|---|
US (1) | US5419022A (en) |
EP (1) | EP0562075B1 (en) |
JP (1) | JP2896810B2 (en) |
KR (1) | KR0173484B1 (en) |
BR (1) | BR9205505A (en) |
DE (1) | DE59205701D1 (en) |
ES (1) | ES2086767T3 (en) |
WO (1) | WO1993008320A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007040215A1 (en) | 2007-08-25 | 2009-02-26 | Oerlikon Textile Gmbh & Co. Kg | Device for feeding synthetic fibers with roll unit with more than two feed rolls in succession useful for production of synthetic fibers by melt spinning allow simultaneous heating of fibers because of compact arrangement of feed rolls |
JP7203818B2 (en) * | 2017-08-05 | 2023-01-13 | エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | A device for drawing and winding a thread group |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH497549A (en) * | 1968-04-24 | 1970-10-15 | Rieter Ag Maschf | Process for drawing and winding an endless filament thread and device for carrying out the process |
US3978192A (en) * | 1971-09-23 | 1976-08-31 | Sussman Martin V | Method of drawing fibers using a microterraced drawing surface |
GB1415947A (en) * | 1972-09-11 | 1975-12-03 | Autlmatik Apparate Maschinenba | Spinning machines for producing and reeling synthetic fibres |
DE3026520C2 (en) * | 1980-07-12 | 1985-03-21 | Davy McKee AG, 6000 Frankfurt | Process for the production of high-strength technical yarns by spinning draws |
US4293518A (en) * | 1980-07-31 | 1981-10-06 | E. I. Du Pont De Nemours And Company | Control of synthetic yarns during drawing with heated rolls |
US4522774A (en) * | 1981-06-11 | 1985-06-11 | Badische Corporation | Integrated process for the production of textured polycaprolactam multifilament yarn |
DE3617248C2 (en) * | 1985-08-30 | 1995-05-24 | Barmag Barmer Maschf | Process for producing a composite thread from man-made fibers |
JP2913712B2 (en) * | 1989-12-26 | 1999-06-28 | 東レ株式会社 | Direct spinning and drawing method for multifilament synthetic fiber |
-
1992
- 1992-10-07 DE DE59205701T patent/DE59205701D1/en not_active Expired - Fee Related
- 1992-10-07 BR BR9205505A patent/BR9205505A/en not_active IP Right Cessation
- 1992-10-07 KR KR1019930701788A patent/KR0173484B1/en not_active IP Right Cessation
- 1992-10-07 WO PCT/CH1992/000203 patent/WO1993008320A1/en active IP Right Grant
- 1992-10-07 EP EP92920356A patent/EP0562075B1/en not_active Expired - Lifetime
- 1992-10-07 ES ES92920356T patent/ES2086767T3/en not_active Expired - Lifetime
- 1992-10-07 JP JP5507319A patent/JP2896810B2/en not_active Expired - Lifetime
- 1992-10-07 US US08/070,394 patent/US5419022A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9308320A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR930703487A (en) | 1993-11-30 |
WO1993008320A1 (en) | 1993-04-29 |
BR9205505A (en) | 1994-04-05 |
JPH06503611A (en) | 1994-04-21 |
DE59205701D1 (en) | 1996-04-18 |
US5419022A (en) | 1995-05-30 |
JP2896810B2 (en) | 1999-05-31 |
ES2086767T3 (en) | 1996-07-01 |
EP0562075B1 (en) | 1996-03-13 |
KR0173484B1 (en) | 1999-02-18 |
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