EP1425451A2 - False-twist texturing unit and method for feeding a filament into said false-twist texturing unit - Google Patents
False-twist texturing unit and method for feeding a filament into said false-twist texturing unitInfo
- Publication number
- EP1425451A2 EP1425451A2 EP02754942A EP02754942A EP1425451A2 EP 1425451 A2 EP1425451 A2 EP 1425451A2 EP 02754942 A EP02754942 A EP 02754942A EP 02754942 A EP02754942 A EP 02754942A EP 1425451 A2 EP1425451 A2 EP 1425451A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- thread guide
- twist texturing
- guide
- false twist
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000003111 delayed effect Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000000969 carrier Substances 0.000 abstract 2
- 238000002788 crimping Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/04—Devices for imparting false twist
- D02G1/08—Rollers or other friction causing elements
- D02G1/082—Rollers or other friction causing elements with the periphery of at least one disc
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/04—Devices for imparting false twist
- D02G1/06—Spindles
Definitions
- False twist texturing unit and method for applying a thread in the false twist texturing unit are False twist texturing unit and method for applying a thread in the false twist texturing unit
- the invention relates to a false twist texturing unit according to the preamble of claim 1 and a method for applying a thread in the false twist unit according to the preamble of claim 12.
- False twist texturing units of this type are used to impart false twist to melt-spun chemical threads and are known, for example, from US Pat. No. 4,235,071.
- False-twist texturing units for synthetic threads contain a twist device with stacks of overlapping disks rotating in the same direction, which are arranged on axes set up in parallel in the corner points of an equilateral triangle and on which the twists formed between the disks cause a twist on the thread is exercised.
- one or more thread guides are used for positioning, each of which engages on one side of the equilateral triangle in the gap between two adjacent discs which is formed there due to the disc located in the opposite corner.
- These thread guides are arranged on a common carrier of an application device and are introduced into the swirl device with a swiveling or pushing movement. A thread guide engaging in a gap can only be guided up to the disc opposite the gap. For reasons of simplified and faster operation, the feed device with the thread guides remains in the pivoted feed position even during operation.
- the false twist texturing unit known from the published patent application DE 33 18 675 A1 tries to solve this problem with an application device in which the thread guides are actuated one after the other and individually and can be moved individually from a rest position into an application position.
- this solution represents an increased operating effort with correspondingly long creation times.
- one of the thread guides is designed to be movable independently of the other thread guides of the feed device, the movable thread guide being movable between a rest position and a feed position independently of the feed device and thus independently of the other thread guides , In addition to the application positions of the application device, this creates a further degree of freedom for guiding the thread during application.
- the movable thread guide is operated together with the feed device, so that no additional operation is required to actuate the movable thread guide.
- the movably designed thread guide In a positioning position of the movably designed thread guide, it is additionally moved in the direction of the center of the triangular prism spanned by the axes of the disk stacks. As a result, the thread is additionally distorted, so that, with the same thread tension, higher forces can be exerted on the thread in the direction of the center.
- the movable thread guide can be moved beyond the center. As a result, even higher forces can be exerted on the thread in the direction of the center, so that the high frictional forces between the thread and disc surfaces are overcome better and faster. This means that the application process can be carried out with even greater certainty.
- the thread guide In the other position, the rest position of the movable thread guide, the thread guide is retracted to the height of the other thread guides, so that the application device can remain in the application position after it has been applied.
- the area of the first disks on an inlet side of the swirl device or the area of the last disk on an outlet side of the twist device can be used as the position of the movable yarn guide on.
- the thread guide is used in the area of the last disk seen in the thread running direction on the outlet side of the swirl device. 0 It has been shown that when the thread is put on by pulling beyond the center, it is first pulled very quickly through the lower pair of discs and then follows in rapid succession through the upper pairs of discs.
- a center guide, on which the thread guide can be displaced in the direction of the center of the swirl device, is particularly suitable for fastening the movable thread guide on the feed device.
- the movable thread guide is guided on a swivel arm. This is particularly advantageous if the application device itself is also guided on a swivel arm.
- the axes of the swivel arms are provided in alignment in a preferred embodiment.
- the movable thread guide is then moved into its other end position. This can be done by a spring that is tensioned when the feed device is actuated and moves the thread guide back when released.
- the retraction of the thread guide is delayed by a damper acting in one direction, so that the thread remains somewhat longer in the position advantageous for insertion into the swirl device when it is put on.
- the particular advantage of the method according to the invention is that unchanged simple operation of the application device of the thread can be guided faster and more securely into the swirl device and thus the undesired twisting of the thread is avoided even when using disks with a high coefficient of friction.
- the method variant has proven itself in which the thread is guided by the movable thread guide in a positioning position of the thread guide beyond the center of the triangle formed by the axes.
- the thread is first pulled very quickly through one of the pairs of discs and then in rapid succession through the other pairs of discs.
- the thread application can be further optimized by guiding the thread on the outlet side of the swirl device beyond the center of the triangle formed by the axes.
- FIG. 2 shows the exemplary embodiment of the false twist texturing unit according to the invention from FIG. 1 during application
- FIG. 3 shows the exemplary embodiment of the false twist texturing unit according to the invention from FIG. 1 after application
- Fig. 4 shows a detail of an application device with the detail of a movable Thread guide with damping
- FIG. 5 shows a further exemplary embodiment of the false twist texturing unit according to the invention.
- FIG 1 shows an embodiment of the false twist texturing unit according to the invention, the false twist texturing unit being shown in the situation before the thread is put on.
- the false twist texturing unit has a swirl device 3 and a drive (not shown here), the drive serving to drive the swirl device 3.
- the DraU shark 3 has an axle support 3.1, on which three rotatably mounted axles 3.2 are held.
- the axes 3.2 are arranged in a preferably isosceles triangle and each carry a disc stack 3.3 with a plurality of discs 3.4 fastened at a distance from one another on the respective axis 3.2.
- the disc stacks 3.3 of the axes 3.2 are designed such that the discs 3.3 overlap in the center of the triangle spanned by the axes 3.2.
- the axes 3.2 with the disk stacks 3.3 are driven.
- the incoming thread 1 is fed to the drawer device 3 for false twist texturing via a head thread guide 2.
- the swirl device 3 has the three rotatable disk stacks 3.3, the axes 3.2 of which are arranged in parallel in the ecl of the preferably equilateral triangle on the axle support 3.1.
- the axle carrier 3.1 includes the storage of the disk stack 3.2 and the drive, not shown here, which drives the disk stack 3.3 in the same direction.
- the disk stacks 3.3 each contain a plurality of disks 3.4, the disks 3.4 of two adjacent disk stacks 3.3 each overlapping.
- a feed device is also part of the false twist texturing unit.
- device 4. The application device 4 consists of a carrier 4.1 with thread guides 4.2 arranged thereon.
- the application device 4 is designed to be displaceable in the direction of the disk stack 3.3 of the swirl device 3 and, with its thread guides 4.2, engages in the gaps between the disks 3.4 of two adjacent disk stacks 3.3.
- the gap between two disks 3.4 has a clear height which is occupied by the disk 3.4 of the disk stack 3.3 opposite the application device 4.
- the adizing device 4 contains a thread guide 4.4 which is designed to be movable on a holder 4.3 by means of a center guide 4.5.
- the thread guide 4.4 can be displaced in the direction of the disk stack 3.3 by an actuating element 4.7 and in the opposite direction by a spring 4.6.
- the actuating element 4.7 is designed as a push button at one end of the rod-shaped thread guide 4.4.
- the center guide 4.5 is formed by an elongated hole 4.13 made in the thread guide 4.4 and a plurality of guide elements 4.14 engaging in the elongated hole 4.13.
- the guide elements 4.14 are attached to the holder 4.3.
- the holder 4.3 is cantilevered substantially parallel to the thread guides 4.2 on the carrier 4.1.
- the thread guide 4.4 projects with its end carrying the actuating element 4.7 onto the opposite side of the carrier 4.1, the thread guide 4.4 penetrating the carrier 4.1 in a bore.
- a spring 4.6 is tensioned between the actuating element 4.7 and the carrier 4.1, which holds the thread guide 4.4 in a rest position on the application device 4.
- the opposite end of the thread guide 4.4 represents the guide end leading the thread to be put on, in the rest position the guide end of the thread guide 4.4 is essentially at the same height as the guide ends of the thread guide 4.2 firmly held on the carrier 4.1.
- the thread 1 was placed by an operator in front of the false twist texturing unit in the gusset between the respective adjacent disks 3.4 of the two disk stacks 3.3 facing the application device 4.
- both the swirl device 3 and the thread 1 run.
- the movable thread guide 4.4 of the application device 4 is assigned to the outlet side of the swirl device 3.
- the remaining thread guides 4.2 are arranged on the feed device 4 before the movable thread guide 4.4 in the thread running direction. Behind the false twist texturing unit, the thread 1 is requested in the direction of a next thread treatment unit, not shown here.
- the application device 4 was inserted into the drawer device 3 by pressing the actuating element 4.7, which first moves the movable thread guide 4.4 up to the stop and then moves the entire application device 4.
- the thread 1 is inserted into the drawer 3 by the leading ends of the thread guides 4.2 and 4.4.
- the thread guide 4.4 is displaced beyond the center of the triangle spanned by the axes 3.2 into an application position, as a result of which the thread 1 is pulled through the lowermost disks 3.4 at an acute angle (not shown here).
- the thread guides arranged upstream in the thread run are in the contact position of the application device 4.
- the guide ends of the thread guides 4.2 are at a height which is set back relative to the guide end of the thread guide 4.4.
- FIG. 4 shows a further development of the movable thread guide 4.4.
- FIG. 4 shows a further development of the movable thread guide 4.4.
- FIG. 4 shows a further development of the movable thread guide 4.4.
- FIG. 4 shows a further development of the application device 4 as would be used, for example, in the exemplary embodiment according to FIGS. 1 to 3.
- the components of the same function have been given identical reference symbols, only the differences being explained in more detail below.
- the thread guide 4.4 is movably held in the guide guide 4.5 on the carrier 4.1.
- the end of the thread guide 4.4 opposite the guide end penetrates the carrier 4.1 in a bore.
- the actuating element 4.7 is attached to the thread guide 4.4 in the form of a push button.
- a spring 4.6 is tensioned between the actuating element 4.7 and the carrier 4.1, which holds the thread guide 4.4 in a rest position.
- the movable thread guide 4.4 is connected to the carrier 4.1 by a damper 4.8. It is thereby achieved that the retraction movement caused by the spring force of the spring 4.6 from the application position of the movable thread guide 4.4 is damped and thus delayed.
- the damper 4.8 acts only in the direction of the retraction movement, while no damping force opposes the operator when the application device 4 is actuated to move the thread guide 4.4 from the rest position into the application position.
- the delayed retraction of the thread guide 4.4 from the feed position means that the thread 1 is pulled beyond the center of the center of the triangle over a longer period of time and thus the reliability of the thread is increased.
- the operator on the other hand, only needs to actuate and briefly the actuating element does not have to wait until the thread 1 has been threaded through the lowest pair of discs.
- FIG. 5 shows a top view of a further exemplary embodiment of the false twist texturing unit according to the invention.
- the false twist texturing unit is shown from above.
- the exemplary embodiment is essentially identical to the exemplary embodiment according to FIGS. 1 to 3, so that reference is made to the preceding description and only the differences are explained at this point. For the sake of clarity, the components with the same function have been given identical reference symbols.
- the axes 3.2 form a triangle with the disk stack 3.3 of the draU device 3 on the axle support 3.1, through the center of which the thread 1 runs.
- the placing device 4 is shown in the position before putting on, which corresponds to FIG. 1, for better illustration.
- the thread guides 4.2 are mounted with the carrier 4.1 on a swivel arm 4.9 which is pivotally mounted about a pivot point 4.10. By rotating the swivel arm 4.9 about the pivot point 4.10, the thread guides 4.2 are introduced into the swirl device 3. This process corresponds to the discharge process as described for FIGS. 1 to 3.
- the movable thread guide 4.4 is also arranged on a swivel arm 4.11 and can be swiveled into the swirl device 3. In this exemplary embodiment, the swivel arm 4.11 pivots about the same axis 4.10 as the swivel arm 4.9.
- the invention also relates to other axes for the swivel arm 4.11 that deviate from the axis 4.10.
- the swivel arm 4. 11 is connected to the swivel arm 4.9 via a spring 4.6.
- the leading ends of the thread guides 4.2 and the leading end of the movable thread guide 4.4 are V-shaped, so that a thread guided by the thread guides 4.2 and 4.4 is held securely during placement in the drawer device 3.
- the design of the leading ends of the thread guides of the application device can be carried out as desired, a shape partially surrounding the thread being preferred.
- the application device 4 can be operated by pressing the actuating element 4.7.
- the swivel arm 4.11 and the swivel arm 4.9 connected to the swivel arm 4.11 by means of the spring 4.6 are moved in the direction of the swirl device 3 until the swivel arm 4.9 is prevented from moving further by the stop 4.12.
- the thread guides 4.2 on the swivel arm 4.9 are in the feed position.
- the thread guide 4.4 After releasing the actuating element 4.7, the thread guide 4.4 is pressed back into its rest position by the spring 4.6.
- the swivel arm 4.9 and the thread guide 4.2 remain in the contact position at the stop 4.12.
- the thread guide 4.4 in the rest position and the thread guide 4.2 in the feed position are preferably at one level with their guide ends. However, it is also possible for the thread guide 4.4 to assume a further retracted position in the rest position compared to the thread guides 4.2. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10139560 | 2001-08-10 | ||
DE10139560 | 2001-08-10 | ||
PCT/EP2002/008342 WO2003014445A2 (en) | 2001-08-10 | 2002-07-26 | False-twist texturing unit and method for feeding a filament into said false-twist texturing unit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1425451A2 true EP1425451A2 (en) | 2004-06-09 |
Family
ID=7695182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02754942A Withdrawn EP1425451A2 (en) | 2001-08-10 | 2002-07-26 | False-twist texturing unit and method for feeding a filament into said false-twist texturing unit |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1425451A2 (en) |
JP (1) | JP2005500443A (en) |
CN (1) | CN1539034A (en) |
AU (1) | AU2002321264A1 (en) |
TW (1) | TW562884B (en) |
WO (1) | WO2003014445A2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITFI20070202A1 (en) | 2007-09-10 | 2009-03-11 | Giudici S P A | "TEXTURING-INTERLACING MACHINE WITH DOUBLE OVEN" |
CN101857996B (en) | 2009-04-06 | 2015-05-06 | 苏拉部件有限公司 | Method and device for placing advancing filament in false twisting machine |
CN102443908A (en) * | 2010-09-30 | 2012-05-09 | 吴江市银杉织造有限公司 | Elasticizer compacting device |
CN103014965B (en) * | 2012-12-28 | 2015-10-28 | 无锡宏源机电科技股份有限公司 | Move silk device |
CN108374214B (en) * | 2018-04-26 | 2023-11-03 | 张维国 | False twister and method of use thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3318675A1 (en) * | 1982-06-01 | 1983-12-01 | Rieter-Scragg Ltd., Macclesfield, Cheshire | THREADED DEVICE FOR FALSE WIRE TWISTING MACHINES |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2824034C2 (en) * | 1978-06-01 | 1983-03-31 | FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt | Device for introducing a thread into a friction false twisting unit |
DE3607959A1 (en) * | 1985-03-14 | 1986-10-16 | Barmag Ag, 42897 Remscheid | Friction false twister |
GB9216122D0 (en) * | 1992-07-29 | 1992-09-09 | Rieter Scragg Ltd | False twist apparatus |
-
2002
- 2002-07-26 AU AU2002321264A patent/AU2002321264A1/en not_active Abandoned
- 2002-07-26 CN CNA028153901A patent/CN1539034A/en active Pending
- 2002-07-26 JP JP2003519567A patent/JP2005500443A/en active Pending
- 2002-07-26 WO PCT/EP2002/008342 patent/WO2003014445A2/en not_active Application Discontinuation
- 2002-07-26 EP EP02754942A patent/EP1425451A2/en not_active Withdrawn
- 2002-08-06 TW TW91117704A patent/TW562884B/en not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3318675A1 (en) * | 1982-06-01 | 1983-12-01 | Rieter-Scragg Ltd., Macclesfield, Cheshire | THREADED DEVICE FOR FALSE WIRE TWISTING MACHINES |
Non-Patent Citations (1)
Title |
---|
See also references of WO03014445A3 * |
Also Published As
Publication number | Publication date |
---|---|
AU2002321264A1 (en) | 2003-02-24 |
CN1539034A (en) | 2004-10-20 |
TW562884B (en) | 2003-11-21 |
WO2003014445A2 (en) | 2003-02-20 |
WO2003014445A3 (en) | 2003-11-27 |
JP2005500443A (en) | 2005-01-06 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20040213 |
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AK | Designated contracting states |
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AX | Request for extension of the european patent |
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17Q | First examination report despatched |
Effective date: 20070521 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OERLIKON TEXTILE GMBH & CO. KG |
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Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OERLIKON TEXTILE GMBH & CO. KG |
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18D | Application deemed to be withdrawn |
Effective date: 20080229 |