WO2008154944A1 - Fadenverwahrungsvorrichtung - Google Patents
Fadenverwahrungsvorrichtung Download PDFInfo
- Publication number
- WO2008154944A1 WO2008154944A1 PCT/EP2007/005471 EP2007005471W WO2008154944A1 WO 2008154944 A1 WO2008154944 A1 WO 2008154944A1 EP 2007005471 W EP2007005471 W EP 2007005471W WO 2008154944 A1 WO2008154944 A1 WO 2008154944A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- needle
- yarn
- arm
- yarn package
- storage device
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H65/00—Securing material to cores or formers
- B65H65/005—Securing end of yarn in the wound or completed package
-
- 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
- the invention relates to a device for storing the yarn end of a yarn (thread storage device) for use in the production of a yarn package wound with the yarn with a needle for inserting a loop of the yarn to be formed in the region of the free yarn end of the yarn under a winding layer of the yarn package, and a Nadeleinschiebvorraum for bringing the needle to the yarn package and for moving the needle for inserting the loop under the winding layer of the yarn package.
- the problem arises that after completely winding the yarn package with yarn, a free yarn end of the yarn is present on the yarn package. If no provision is made for safekeeping, that is to say for fastening the free end of the thread, then the yarn package may be accidentally damaged, e.g. by pulling on the free end of the thread, are unwound, or it can lead to a knot of the free end of the thread.
- the thread end is inserted in the form of a loop by means of a needle under the uppermost winding layer or between the winding and the bobbin tube.
- a needle under the uppermost winding layer or between the winding and the bobbin tube.
- the loop is formed such that the free end of the thread can be re-grasped and pulled out after it has been stored.
- the yarn package is formed as a cheese, it is usually a Nadeleinschiebvorraum used in which after complete winding of the yarn package, the needle, driven by gravity, is dropped onto the yarn package.
- this drop needle By means of this drop needle, the free end of the thread is detected and inserted under formation of a loop under one of the uppermost winding layers of the yarn package.
- This Nadeleinschiebvorraum is formed exclusively of mechanical elements, which, so that the needle falls into a matching position on the Garnspulenober Assembly and thus the insertion of the needle is performed correctly, must be adjusted very accurately.
- the case needle must therefore be adjusted mechanically so that it reaches under a free winding edge of the yarn package and can be inserted.
- the procedure of the needle so their movement trajectory, and their initial and final position are given and can be adjusted mechanically only by manual intervention.
- the invention has for its object to provide a thread storage device which avoids the disadvantages of the prior art, in particular, a complex adjustment of the thread storage device should be avoidable before their use in the production of a yarn package. This object is achieved by the thread storage device of the independent claim.
- the dependent claims represent preferred embodiments of the invention.
- the needle is shaped such that it can catch (catch) the thread in the region of the free thread end, for which purpose the needle advantageously has a hook shape or notch in the region of its free end, ie its needle point.
- the needle insertion device comprises at least two electric motors set up for guiding the needle to the yarn package controllable by means of a control unit.
- the needle can be moved as desired in parallel and perpendicular to the spool axis of the yarn package by the control unit.
- the Nadeleinschiebvorraum be adapted to perform the method of the needle for inserting the loop under the winding layer of the yarn package by an electric motor controllable by means of the control unit.
- the needle with appropriate arrangement of the electric motors, in any direction in space can be arbitrarily positioned in position controlled by the control unit.
- a significant advantage of the thread storage device according to the invention lies in enabling a basically arbitrary positioning of the needle.
- control unit is set up to control the electric motors according to a predetermined sequence of movements.
- the sequence of movements for the storage of the free end of the thread must therefore be specified only once before the use of the thread storage device according to the invention, i. e.g. to be taught.
- the movement sequence can be predetermined depending on various parameters. These parameters may e.g. the type of wrapping and / or the sleeve on which the yarn is spooled to make the yarn package, i. generally depend on the winding recipe.
- the movement can be e.g. calculated from the bobbin diameter of the finished wound bobbin and the position of the sleeve (drum position) as parameters. Parameter sets can be maintained for different bobbins, so that when changing the bobbins only by entering into the control unit, the bobbins must be specified in order to use the associated parameter set for calculating the movement sequence.
- control unit is set up, at least one of the electric motors in response to a current contact pressure of the needle to control the yarn package and / or depending on a current insertion pressure of the needle into the yarn package.
- the current contact pressure and / or the insertion pressure can be determined via at least one sensor for detecting control variables for controlling the electric motors as input data for the control unit.
- the sensor can be a current
- Voltage monitoring of one of the motors are used, so that the power of this motor is used to derive the control variables and can be controlled.
- the Nadeleinschiebvor ⁇ chtung a about a, preferably aligned substantially parallel to Garnspulenlangsachse, pivoting arm pivotable arm, wherein in a region at the non-rotating end of the arm, the needle is mounted, such that in a process of the arm in a direction parallel to Rotary axis, after previously suitable approach of the needle to the yarn package, the insertion of the loop under the winding layer of the yarn package is vorrisebar.
- the needle is preferably brought from below to the yarn package, i. raised.
- the arm leads to the fact that the yarn storage device according to the invention during the winding of the yarn package can not interfere with the yarn path of the wound yarn.
- the needle When the needle is mounted with its longitudinal axis substantially parallel to the axis of rotation, or forming an acute angle with the axis of rotation on the arm, the insertion of the loop of the yarn under a winding layer of the yarn package with a single movement, ie by controlling a single electric motor, be executed.
- the needle tip need only be pre-positioned at an appropriate position on the surface of the yarn package.
- one of the electric motors is arranged for moving the arm in a direction parallel to its axis of rotation and one of the electric motors is arranged for pivoting the arm about its axis of rotation, preferably wherein another of the electric motors is set up to move the arm in a spatial direction perpendicular to the axis of rotation , wherein by means of the further electric motor, the distance between the axis of rotation and the Garnspulenlangsachse is adjustable.
- the needle can be moved arbitrarily in all spatial directions.
- a pre-positioning of the arm on an XY plane is possible such that only by raising the arm about its axis of rotation, the final positioning of the needle tip before inserting the loop is possible.
- the mounting position of the thread storage device on a yarn package making machine can be made more flexible.
- a bobbin production machine has a thread storage device according to the invention and a control unit, designed to control the electric motors of the thread storage device.
- a control unit designed to control the electric motors of the thread storage device.
- at least one sensor for detecting control variables for controlling the electric motors can be provided as input data for the control unit.
- FIG. 1 shows a thread storage device according to the invention designed as a structural unit in a perspective view.
- Figure 2 shows the thread storage device of Figure 1 in a side view.
- FIG. 1 shows a thread storage apparatus 1 according to the invention, designed as a structural unit, for use in the production of a yarn package wound with a yarn.
- the bobbin is attached to the yarn storage device at e.g. a yarn making machine or a rewinding machine advantageously in an area above the yarn storage device.
- the thread storage device Positioned thread storage device, wherein the yarn path of the yarn to be wound on the yarn package from below, as shown in an area to the right of the thread storage device, runs on the yarn package.
- the thread storage device For mounting the thread storage device, the thread storage device on a base plate 3 screw holes 4.
- the yarn storage device 1 has a needle 6 for inserting a loop of the yarn to be formed in the region of the free yarn end of the yarn under a winding layer of the yarn package.
- the thread storage device 1 comprises a Nadeleinschiebvorraum 8 with three electric motors 11,12,13 by means of which controlled by a control unit, the needle 6 can be brought to the yarn package and moved to insert the loop.
- the electric motors can be designed, for example, at least partially as stepper motors.
- a hook-like notch 15 (catching notch) is provided on the needle 6 in the region of the needle tip of the needle 6.
- the needle 6 is mounted on the end facing away from the axis of rotation of an arm 18 pivotable about an axis of rotation 17 oriented substantially parallel to the Gam coil longitudinal axis.
- the pivotability of the arm 18 is symbolized in the figure by a curved double arrow.
- the needle 6 is oriented so that, after a suitable approach the needle 6 to the yarn package, the insertion of the loop under the winding layer of the yarn package by operation of the arm 18 in a direction parallel to its axis of rotation 17 is vorrisebar.
- a first of the electric motors 11 is set up for this process of the arm 18, symbolized in the figure by a first double arrow.
- the arm 18 is mounted on a carriage-like base 20, which can be experienced on rail-like guides 22 on the base plate 3. This first electric motor 11 is fastened to the base plate 3 and can move the base 20 with the arm 18 mounted thereon over the base plate 3 via a belt drive 24.
- a second of the electric motors 12 is arranged for pivoting the arm 18 about its axis of rotation 17.
- the motor rotation axis of this second electric motor 12 is formed in the figure as a direct extension of the rotation axis 17 of the arm 18, the electric motor 12 being mounted on the base 20 on which the arm 18 is mounted.
- it can also be a torque transmission device, eg with a translation between be mounted this electric motor 12 and the rotation axis 17 of the arm 18.
- the arm 18 is held stable by a coil spring 25 in an initial position, or retracted via the coil spring 25 in this starting position, after the arm 18 has been pivoted about the associated electric motor 12.
- a third electric motor 13 of the electric motors is set up for moving the arm 18 in a spatial direction perpendicular to the axis of rotation 17, wherein the distance between the axis of rotation 17 and the yarn package longitudinal axis can be adjusted by means of this third electric motor 13.
- the latter is symbolized by another double arrow in the figure.
- a slide device between the base 20, on which the arm 18 is mounted, and the base plate 3 is provided a slide device, not shown in the figure.
- This carriage device may e.g. be performed as part of the base 20 in a rail on the underside of the base 20 and is further on the rail-like guides 22 on the base plate 3 movable.
- the third electric motor 13 is at this case
- Attached slide device and has for moving the arm 18 in the spatial direction mentioned another belt drive 26.
- the needle insertion device 8, or its arm 18 can be positioned in an arbitrarily electronically controlled manner in an area in an XY plane.
- the needle 6 is mounted with its longitudinal axis substantially parallel to the axis of rotation 17 of the arm 18 on the arm 18 in a needle position.
- adjusting means 30 for adjusting the position of the needle 6.
- FIG. 2 shows the thread storage device 1 from FIG. 1 in a side view, wherein its positioning relative to the yarn package 31 and the yarn path of the yarn to be wound onto the yarn package 31 whose yarn end 33 is to be stored is shown.
- the Nadeleinschiebvorraum 8 itself is, apart from its arm 18, symbolized only by a rectangle.
- the electric motors of the fade storage apparatus 1 are controlled by means of a control unit 35, e.g. a computer, e.g. Controlled and / or controlled in the following manner: From a start position, first the arm 18 and thus the needle 6 is brought by means of the above-described third electric motor in the direction of the illustrated straight arrow to the yarn path of the yarn. The arm 18 is thus moved in the direction of the yarn package 31 in such a way that the distance between the axis of rotation 17 of the arm 18 and the yarn package 31 in the desired manner, i. is set in accordance with a movement sequence predetermined by the control unit 35.
- a control unit 35 e.g. a computer, e.g. Controlled and / or controlled in the following manner: From a start position, first the arm 18 and thus the needle 6 is brought by means of the above-described third electric motor in the direction of the illustrated straight arrow to the yarn path of the yarn. The arm 18 is thus moved in the direction of the yarn package 31 in such a way
- the arm 18 is rotated about its axis of rotation 17 by means of the second electric motor described so that the needle 6 is raised and pressed against the surface of the yarn package 31, preferably with a, as part of the predetermined sequence of movement, predetermined contact pressure.
- the arm 18 is pressed against the spring force of the coil spring 25 in the direction of the illustrated curved arrow upwards.
- the needle 6 already presses the free end of the thread 33 with the surface of the yarn package 31st
- the needle 6 is moved substantially parallel to the yarn package longitudinal axis, that is to say its axis of rotation 37, in the direction of the needle tip, ie in the figure out of the plane of the drawing towards the front.
- the free end of the thread 33 is first gripped by the hook-like notch on the needle 6 and subsequently pushed under formation of a loop under a winding layer of the yarn package 31.
- the first electric motor can also, for example, before the operation of the second and / or third electric motor, one according to the predetermined Movement sequence desired positioning of the needle tip along the longitudinal axis of the yarn package 31 are made.
- the free yarn end 33 of the yarn is e.g. is released by cutting from the yarn processing machine from which the yarn package 31 is wound, and the needle 6 is controlled by the electric motors controlled back to the starting position.
- the storage of the trainee free end 33 of the yarn, in particular a cheese as yarn package 31, by appropriate control of the electric motors of the thread storage device 1 by means of a control unit 35 proceed as follows: First, the thread is already cut off before the finished wound yarn package 31 is caught by approaching the needle 6 to the yarn path of the thread through the needle 6, ie, the needle 6 is positioned so that the thread is hooked in the Einfangkerbe the needle 6. The needle 6 is then moved so that it is tangentially, and pressed in substantially parallel orientation to Garnspulenlä ⁇ gsachse to the coil surface and rests with its needle tip on a winding flank of the upper cross windings of the yarn package. The thread is carried by the needle 6.
- the actual pushing can not happen now by a movement of the needle because otherwise this ideal tangent position would leave.
- the needle remains in place and by rotation of the coil axis by a predetermined angle value, the needle is pushed under the layers because they run so obliquely to the coil axis.
- the needle tip can also be designed as a clamping cutting head.
- the needle tip or an attached below the needle clamping cutting head device has a scarfed edge (blade). This blade is positioned on the needle so that when the needle is moved back, the thread can be severed by the blade and thus the finished yarn package is cut off.
- the needle of the thread storage device according to the invention, or the clamping cutting head device which is disposed below the needle can be used to insert the thread into a clamping ring after the cutting of the finished yarn package which is used for purging the new empty tube for a further yarn package to be wound up .
- a clamping ring may be formed as part of a thread holder for holding the thread.
- the clamping ring preferably has two substantially annular clamping jaws and the clamping jaws surround a rotatable drive shaft of a drive flange for a sleeve receptacle for the yarn package or the empty tube. The jaws are compressed to clamp the positioned between them thread by means of a drive.
- a thread storage device 1 for use in the production of a wound with a yarn, preferably designed as a cross-wound bobbin 31, with a needle 6 for inserting a in the field of the yarn end of the yarn to be formed under a winding layer of the yarn package 31; and a needle insertion device 8 for feeding the needle 6 to the yarn package 31 and moving the needle 6 to insert the loop under the winding layer of the yarn package 31.
- the needle insertion device 8 has at least two electric motors 11,12,13, arranged for by means of a control unit 35 controllable bringing the needle 6 to the yarn package 31, preferably, wherein the Nadeleinschiebvorraum 8 is set, the method of the needle 6 for inserting the loop under the winding layer of the yarn package 31 make by an controllable by the control unit 35 electric motor 11.
- the invention is not limited to the embodiments given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Centrifugal Separators (AREA)
- Refuse Collection And Transfer (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Nonwoven Fabrics (AREA)
- Manufacture Of Motors, Generators (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07726112A EP2170752B1 (de) | 2007-06-21 | 2007-06-21 | Fadenverwahrungsvorrichtung |
AT07726112T ATE490938T1 (de) | 2007-06-21 | 2007-06-21 | Fadenverwahrungsvorrichtung |
CN2007800534454A CN101707945B (zh) | 2007-06-21 | 2007-06-21 | 丝线缚紧装置 |
DE502007005918T DE502007005918D1 (de) | 2007-06-21 | 2007-06-21 | Fadenverwahrungsvorrichtung |
PCT/EP2007/005471 WO2008154944A1 (de) | 2007-06-21 | 2007-06-21 | Fadenverwahrungsvorrichtung |
TW097123254A TW200936831A (en) | 2007-06-21 | 2008-06-20 | Thread tuck-in device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2007/005471 WO2008154944A1 (de) | 2007-06-21 | 2007-06-21 | Fadenverwahrungsvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008154944A1 true WO2008154944A1 (de) | 2008-12-24 |
Family
ID=39203197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/005471 WO2008154944A1 (de) | 2007-06-21 | 2007-06-21 | Fadenverwahrungsvorrichtung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2170752B1 (de) |
CN (1) | CN101707945B (de) |
AT (1) | ATE490938T1 (de) |
DE (1) | DE502007005918D1 (de) |
TW (1) | TW200936831A (de) |
WO (1) | WO2008154944A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB217442A (en) * | 1923-07-07 | 1924-06-19 | Edmund Norbury Baines | Method and means for "ending" in machines for balling yarn, thread, twine and the like |
DE2054131A1 (de) * | 1969-11-17 | 1971-05-27 | Hacoba Textilmaschinen GmbH & Co KG, 5600 Wuppertal Barmen | Verfahren zum Herstellen einer Wick lung von Faden, Garnen o dgl und Vorrich tung zur Durchfuhrung des Verfahrens |
DE2442471A1 (de) * | 1974-09-05 | 1976-03-18 | Hacoba Textilmaschinen | Vorrichtung zum festlegen des anfangsfadenendes an automatischen spuleinrichtungen |
EP1136413A1 (de) * | 2000-03-22 | 2001-09-26 | Hacoba Spultechnik GmbH | Spulmaschine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100494033C (zh) * | 2005-03-04 | 2009-06-03 | 陈兴伟 | 一种钢丝绳叉接工具 |
-
2007
- 2007-06-21 DE DE502007005918T patent/DE502007005918D1/de active Active
- 2007-06-21 CN CN2007800534454A patent/CN101707945B/zh active Active
- 2007-06-21 WO PCT/EP2007/005471 patent/WO2008154944A1/de active Application Filing
- 2007-06-21 AT AT07726112T patent/ATE490938T1/de active
- 2007-06-21 EP EP07726112A patent/EP2170752B1/de active Active
-
2008
- 2008-06-20 TW TW097123254A patent/TW200936831A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB217442A (en) * | 1923-07-07 | 1924-06-19 | Edmund Norbury Baines | Method and means for "ending" in machines for balling yarn, thread, twine and the like |
DE2054131A1 (de) * | 1969-11-17 | 1971-05-27 | Hacoba Textilmaschinen GmbH & Co KG, 5600 Wuppertal Barmen | Verfahren zum Herstellen einer Wick lung von Faden, Garnen o dgl und Vorrich tung zur Durchfuhrung des Verfahrens |
DE2442471A1 (de) * | 1974-09-05 | 1976-03-18 | Hacoba Textilmaschinen | Vorrichtung zum festlegen des anfangsfadenendes an automatischen spuleinrichtungen |
EP1136413A1 (de) * | 2000-03-22 | 2001-09-26 | Hacoba Spultechnik GmbH | Spulmaschine |
Also Published As
Publication number | Publication date |
---|---|
EP2170752A1 (de) | 2010-04-07 |
EP2170752B1 (de) | 2010-12-08 |
TW200936831A (en) | 2009-09-01 |
CN101707945B (zh) | 2012-08-01 |
CN101707945A (zh) | 2010-05-12 |
ATE490938T1 (de) | 2010-12-15 |
DE502007005918D1 (de) | 2011-01-20 |
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