WO2000000687A1 - Vorrichtung und verfahren zum abteilen von fäden aus einer schicht - Google Patents
Vorrichtung und verfahren zum abteilen von fäden aus einer schicht Download PDFInfo
- Publication number
- WO2000000687A1 WO2000000687A1 PCT/CH1999/000252 CH9900252W WO0000687A1 WO 2000000687 A1 WO2000000687 A1 WO 2000000687A1 CH 9900252 W CH9900252 W CH 9900252W WO 0000687 A1 WO0000687 A1 WO 0000687A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- threads
- layer
- detected
- separating means
- clamped
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
- D03J1/00—Auxiliary apparatus combined with or associated with looms
- D03J1/16—Apparatus for joining warp ends
- D03J1/18—Apparatus for joining warp ends for joining, e.g. tying, a complete series of fresh warp threads to the used warp threads
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
- D03J1/00—Auxiliary apparatus combined with or associated with looms
- D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds
Definitions
- the invention relates to a device and a method for dividing adjacent threads, which are clamped at a first and a second location and together form essentially a surface or a layer.
- the division of threads is a work step that has to be carried out, for example, for the insertion of warp threads into the harness elements of a weaving machine.
- the warp threads are stretched in a frame, where they form a layer of warp threads.
- the individual threads are very close together. Before moving in, they should be separated from the layer, which means that they must be separated from each other. But that's not always easy.
- the problem also arises when connecting warp threads of an old warp thread layer that has already been provided with weft threads and thus forms part of a woven fabric, to a new warp thread layer.
- warp threads are clamped into a frame and must be separated from the layer by the knotting machine before knotting.
- needles for example, are inserted between the individual threads in order to delimit threads lying next to one another so that they can later be detected individually for the drawing-in process.
- a so-called crosshair is previously inserted between the threads, two cords lying transversely to the warp threads being drawn in or woven in between the warp threads.
- a disadvantage of such known methods and devices can be seen in particular in the fact that the insertion of needles in warp threads, which consist of so-called multifilaments, reaches its limits.
- a method is also known in which - without using a crosshair - the threads are separated from the thread layer solely by a rotating body which has a thread-like profile on the circumference.
- this process is only suitable for dividing staple yarns or twisted multifilaments.
- untwisted yarns which consist of several fibrils, the yarns are merely divided into the individual fibrils. So a clean compartment is hardly possible anymore.
- the object of the invention is to propose a method or a device, in particular for using this method, with which the division of threads from a thread layer can be carried out safely, even if the threads are made of so-called untwisted multifilaments or fibrils.
- the invention as characterized by claim 1, therefore solves this problem, according to a first aspect of the invention, according to which a device for dividing individual threads from a layer consisting of a plurality of threads clamped in at least two places is proposed , which is characterized in that the device comprises a separating means for detecting a plurality of threads at at least one location each and for causing different relative accelerations of the detected threads in essentially their transverse direction.
- the object is achieved in that a method for dividing individual threads from a layer, which consists of a plurality of threads clamped at at least two points, is proposed in claim 12, which is characterized in that with a Release agent detects a plurality of threads at at least one point each and causes different relative accelerations in essentially their transverse direction.
- a thread consisting of a plurality of threads clamped at at least two points, that is to say, for example, of warp threads stretched in a frame, detects several threads at at least one point with a separating agent and different relative accelerations in the detected threads essentially causes their transverse direction.
- This results in a progressive movement which is preferably the greatest for the thread furthest away from the undetected warp thread layer, so that - if the distance to the second thread already allows this - it is grasped from this new position, for example by a pull-in needle and out of the Layer can be removed.
- the detected and deflected threads can be detected at a further point and then deflected again. If the distance to the second thread now permits, the first thread can now be grasped from this new position, for example by a pull-in needle, and removed from the layer. The detection and deflection can alternately take place until the first thread is at a sufficient distance from the second thread. Of course, the captured threads are released after they are supposed to change their mutual position by subsequent grasping and deflection.
- the device suitable for this purpose has at least one separating agent for grasping a plurality of threads from a layer which consists of a plurality of threads clamped in at least two locations, which preferably comprises:
- a screw or spiral screw conveyor which can be rotated about an axis that is at least approximately parallel to the layer, with an increasing pitch;
- 3. comprises two elastic beams which extend substantially perpendicular to the direction of expansion of the threads and which can be arranged relative to one another in such a way that they clamp the threads they have captured between them; 4. comprises three separating bars which can be moved about a first axis which is essentially at right angles to the plane of the layer and which can be arranged relative to one another in such a way that the threads at least partially embrace them.
- an additional release agent of the 2nd to 4th category can be assigned to the swiveling or elastic clamping beams or to the swiveling separating beams, in order to enable mutual detection and deflection until the first thread is at a sufficient distance from the second thread .
- a so-called pusher in addition to category 1, which increases the pressure of the threads on the screw-shaped or spiral-shaped screw conveyor.
- a second screw conveyor can also be provided to reinforce the separation effect.
- Figure 1 is a plan view of a layer of clamped threads and the detection of some threads according to a first embodiment of the invention.
- Figure 2 The separation of some threads ge ass a first embodiment of the invention.
- FIG. 3 shows a plan view of a layer of clamped threads and the detection of some threads according to a second embodiment of the invention
- Fig. 4 The separation of some threads according to a second embodiment of the invention.
- FIG. 5 shows a plan view of a layer of clamped threads and the detection of some threads according to a third embodiment of the invention
- FIG. 6 The separation of some threads according to a third embodiment of the invention.
- FIG. 7 shows a plan view of a layer of clamped threads and the detection of some threads according to a fourth embodiment of the invention.
- FIG. 10 A spatial representation of the separation of individual threads, according to a combination of the second with the third embodiment. It is common to all the figures that they show several threads 1 lying next to one another, which are clamped in a first element 2 in a first position and in a second element 3 in a second position, so that together they form an essentially flat surface or layer 4 .
- Elements 2 and 3 are, for example, parts of a frame, as used in drawing machines.
- FIG. 1 shows a first embodiment of the device according to the invention, which as a first separating means 5 - for detecting several threads 1 at at least one point S and for causing different relative accelerations of the detected threads in essentially their transverse direction - two bars 6 , 6 'includes. These bars are arranged to be movable around a first axis 7, which is essentially perpendicular to the plane of the layer 4. They can be arranged in relation to one another in such a way that they can pinch the threads they have captured between them.
- the position of the first separating means 5 for grasping some threads is shown here: the bars 6, 6 'are arranged essentially parallel to one another and extend in a direction which clearly deviates from the perpendicular to the direction of expansion of the threads 1.
- FIG. 3 shows a second embodiment of the device according to the invention, which, as a second separating means 15 - for detecting a plurality of threads 1 at at least one point S and for causing different relative accelerations of the detected threads in essentially their transverse direction - three Includes bars 16, 16 'and 16' '. These bars are arranged to be movable around a first axis 7, which is essentially perpendicular to the plane of the layer 4. They can be arranged with respect to one another in such a way that they are at least partially wrapped around the threads.
- the position of the second separating means 15 for grasping some threads is shown here: the bars 16, 16 'and 16' 'are arranged essentially parallel to one another and extend in a direction which clearly deviates from the perpendicular to the direction of expansion of the threads 1 .
- Fig. 4 shows the separating means 15, which is shown here pivoted essentially at right angles to the original direction of expansion of the threads 1:
- the separating means 15 was rotated by the angle 8, which is between the dashed detection position (shown only for bars 16 ') and the drawn separation position.
- the points S at which some threads 1 have been detected are still essentially the same distance from the axis of rotation 7; because of the rotation through the angle 8, the distance between the detected threads has become much greater.
- all of the threads detected experienced an acceleration essentially in the transverse direction to their direction of expansion.
- FIG. 5 shows a third embodiment of the device according to the invention, which, as a third separating means 25 - for detecting a plurality of threads 1 at at least one location S and for causing different relative accelerations of the detected threads in essentially their transverse direction - two includes elastic beams 26, 26 '. These bars can be arranged relative to one another in such a way that they can pinch the threads they have captured between them.
- the position of the third separating means 25 for grasping some threads is shown here: the bars 26, 26 ′ are arranged essentially parallel to one another and extend at least approximately at right angles to the direction of expansion of the threads 1.
- FIG. 6 shows the separating means 25, which is also shown here essentially at right angles to the original direction of expansion of the threads 1:
- the separating means 25 has been stretched in the longitudinal direction (arrow).
- the locations S at which some threads 1 have been detected now have a progressively increasing distance from the threads not recorded.
- By stretching the elastic beams 26, 26 ' all of the threads detected experienced an acceleration essentially in the transverse direction to their direction of expansion.
- All or only some of the described bars 6, 6 '; 16, 16 ', 16''; 26, 26 ' can have a cross section which is delimited by a curved curve, such as a circle, ellipse or oval, or which is delimited by a polygon, such as a triangle, square, rectangle, pentagon or polygon. So that a friction or Form fit between the bars 6, 6 '; 16, 16 ', 16''; 26, 26 'and the detected threads, the surface of all or just individual beams can be provided with a special material that increases friction, such as rubber, or with appropriate surface shapes, such as combs.
- the friction in the longitudinal direction of the bars 6, 6 '; 16, 16 ', 16''; 26, 26 ' be larger than in their transverse direction. It goes without saying that there are many and very different possibilities for such bars 6, 6 '; 16, 16 ', 16''; 26, 26 'to be trained and movably supported and driven in the directions mentioned. Such possibilities are known per se from other areas and are therefore not shown in more detail here.
- the thread 9, which is furthest from the remaining threads 1 of the layer 4 was conveyed by the greatest distance away from the threads which were not detected.
- FIG. 7 shows a fourth embodiment of the device according to the invention, which, as a fourth separating means 35 - for detecting several threads 1 at at least one point S and for causing different relative accelerations of the detected threads in essentially their transverse direction - is one - Includes an axis 36 that is rotatable, at least approximately parallel to the layer 4, - rotatable, screw-shaped or spiral-shaped screw conveyor 37 with an increasing pitch 38. This screw conveyor extends at least approximately at right angles to the direction of expansion of the threads 1.
- the separating means 35 which is also shown here essentially at right angles to the original direction of expansion of the threads 1:
- the separating means 35 was, however, rotated about the axis 36.
- the locations S at which some threads 1 have been detected now have a progressively increasing distance from the threads not recorded.
- By turning the screw conveyor 37 all of the threads detected accelerated essentially in the transverse direction to their direction of expansion. Due to the increasing incline the detected threads drive a different relative acceleration.
- the thread 9, which is furthest from the remaining threads 1 of the layer 4, is now at a greater distance from the second thread 10 than it separates from the third thread 11.
- FIG. 9 shows a spatial representation of the separation of individual threads, according to a preferred variant of the fourth embodiment: 37 denotes a rotatable screw conveyor which - if this screw conveyor has an essentially cylindrical shape - a screw-shaped or - if this screw conveyor has an essentially conical shape - has a spiral configuration. It can also be provided that the beginning of the
- Screw conveyor is conical and the rest is cylindrical.
- a screw conveyor 37 is particularly advantageous which, at least in the area in which, for example, a gripper or a needle takes over the first thread 9, has a surface which is essentially parallel to the layer 4, because the separating action of the screw conveyor is thereby reduced has the greatest impact.
- a pusher 12 can be provided. This pusher is in contact with some threads from a first side of the thread layer, while the screw conveyor 37 presses against some threads with a second side of the thread layer 4.
- the screw conveyor 37 is mounted and driven about an axis 36 in a manner known per se and therefore not shown here.
- the screw conveyor 37 has a screw or spiral circumferential groove or rib, the pitch 38 of which increases progressively in the direction of the thread 9 to be divided.
- the screw conveyor 37 is preferably tapered at the end 13 facing away from the first thread 9 of the thread layer.
- the pusher 12 is also movably mounted in the direction of an arrow 14 and driven in a manner known per se. If a second screw conveyor 37 is provided, a second pressure ker 12 are arranged, preferably the two screw conveyors 37 are arranged between the two pushers 12.
- a screw conveyor 37 - to reinforce the separating action - has additional screw or spiral starts between two adjacent screw or spiral flights.
- two identical or different of the separating means 5, 15, 25, 35 described above can be used in any combination.
- threads that are at least partially separated by one separating agent 5, 15, 25, 35 can be picked up and further separated by another separating agent 5, 15, 25, 35.
- An excellent separation result is achieved by possibly continuing to work alternately with the selected release agents.
- FIG. 10 shows a spatial representation of the separation of individual threads, according to a combination of the second and the third embodiment.
- One separating means 15 here consists of a group of separating bars 16, 16 ', 16'', all of which are at least partially wrapped around by a few threads 29 to 32 or deflect them and are arranged one behind the other in the thread direction.
- the two outer separating bars 16, 16 ′′ can press on the same side of the thread layer, while the middle separating bar 16 ′ lies against the other side of the thread layer.
- the dividing bars 16, 16 ', 16'' deviating from the representations in this description exercise (Fig. 3, 4, 10), may be arranged on the other side of the surface 4.
- the separating bars 16, 16 ', 16'' are pivotably mounted from a first position, here indicated by a line 33, to the position shown, indicated by a second line 34.
- a gripper 39 can also be seen here, which is part of a drawing-in machine.
- Two elastic bars 26, 26 ' are shown as a further separating means. These then capture the at least partially separated threads 29 to 32 in order to additionally separate them from one another in a further separation step. If necessary, the separating bar 16, 16 ', 16' 'can be used to improve the separation result in a third step, so that the gripper 39, which is part of a drawing-in machine, can grip the first thread 29.
- the starting point of the method is a thread layer or a number of threads 1, which are clamped at points 2 and 3 and essentially form a surface or a layer 4.
- some threads 1, as shown in FIGS. 2, 4, 6 and 8, are grasped and deflected essentially transversely to their direction of expansion, so that, for example, there is a distance between the threads 29 and 30 that is greater than that Distance between the unmounted threads 1.
- filament triangles 40 (see FIG. 10 ) form.
- the aim of the separation is that a first thread 9 or 29 can be taken over, for example, by a gripper 39 or a needle.
- a gripper 39 or a needle When the threads are untwisted, the occurrence of the fibril triangles 40 can delay a successful separation, so that it has to be separated in two or more working steps, or until the fibril triangles no longer overlap.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Nonwoven Fabrics (AREA)
- Warping, Beaming, Or Leasing (AREA)
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
- Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
- Combined Means For Separation Of Solids (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99923363A EP1092053B8 (de) | 1998-06-29 | 1999-06-10 | Vorrichtung und verfahren zum abteilen von fäden aus einer schicht |
CA002336098A CA2336098A1 (en) | 1998-06-29 | 1999-06-10 | Device and method for separating threads from a layer |
AU40285/99A AU4028599A (en) | 1998-06-29 | 1999-06-10 | Device and method for separating threads from a layer |
KR1020007014886A KR20010071630A (ko) | 1998-06-29 | 1999-06-10 | 층으로부터 실들을 분리하기 위한 장치 및 방법 |
JP2000557034A JP2002519531A (ja) | 1998-06-29 | 1999-06-10 | 層から糸を分離する装置及び方法 |
DE59904381T DE59904381D1 (de) | 1998-06-29 | 1999-06-10 | Vorrichtung und verfahren zum abteilen von fäden aus einer schicht |
AT99923363T ATE233336T1 (de) | 1998-06-29 | 1999-06-10 | Vorrichtung und verfahren zum abteilen von fäden aus einer schicht |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH137798 | 1998-06-29 | ||
CH1377/98 | 1998-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000000687A1 true WO2000000687A1 (de) | 2000-01-06 |
Family
ID=4209008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1999/000252 WO2000000687A1 (de) | 1998-06-29 | 1999-06-10 | Vorrichtung und verfahren zum abteilen von fäden aus einer schicht |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP1092053B8 (de) |
JP (1) | JP2002519531A (de) |
KR (1) | KR20010071630A (de) |
CN (1) | CN1094532C (de) |
AT (1) | ATE233336T1 (de) |
AU (1) | AU4028599A (de) |
CA (1) | CA2336098A1 (de) |
DE (1) | DE59904381D1 (de) |
TR (1) | TR200003798T2 (de) |
WO (1) | WO2000000687A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002088445A2 (de) * | 2001-04-25 | 2002-11-07 | Stäubli Ag Pfäffikon | Vorrichtung und verfahren zur separierung von fäden aus einer fadenschicht |
WO2002101132A1 (de) * | 2001-06-12 | 2002-12-19 | Stäubli Ag Pfäffikon | Verfahren und vorrichtung zum spannen eines kettfadens |
US7081146B2 (en) | 2001-11-01 | 2006-07-25 | Alfa Laval Corporate Ab | Apparatus for simultaneous cleaning of a liquid and a gas |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2881506B1 (de) * | 2013-12-09 | 2016-09-07 | Stäubli Sargans AG | Vorrichtung zur fadenseparierung |
CN105671724B (zh) * | 2016-04-13 | 2017-09-29 | 常州信息职业技术学院 | 一种经纱的解绞装置 |
CN106087232A (zh) * | 2016-07-21 | 2016-11-09 | 苏州科润织造有限公司 | 一种螺旋分纱杆 |
EP3330418B1 (de) * | 2016-12-01 | 2019-06-26 | Stäubli Sargans AG | Garntrennmodul mit einer kapazitiven sensorvorrichtung |
CN108866773A (zh) * | 2018-08-03 | 2018-11-23 | 江苏罗曼罗兰集团有限公司 | 能减少结经绞头的结经工艺 |
CN110318145B (zh) * | 2019-07-31 | 2024-02-23 | 宏和电子材料科技股份有限公司 | 电子级玻璃纤维布整浆绫取装置 |
EP3771758B1 (de) * | 2019-07-31 | 2022-03-30 | Stäubli Sargans AG | Fadenklemmvorrichtung und webmaschine mit solch einer fadenklemmvorrichtung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR698064A (fr) * | 1930-06-25 | 1931-01-27 | Moore And Avery Blackburn Ltd | Perfectionnements aux appareils pour sélectionner et séparer les fils de chaîne dans la préparation de la chaîne utilisable dans les métiers à tisser |
CH331810A (de) * | 1953-08-12 | 1958-08-15 | Koefoed Hauber Marstrand Og He | Kreuzstab zum Kreuzlegen der Fäden einer Fadenschicht |
GB2117419A (en) * | 1982-03-25 | 1983-10-12 | Dornier Gmbh Lindauer | Apparatus for the separation and preparing of warp threads for the drawing in of warp threads in healds and dents |
-
1999
- 1999-06-10 AT AT99923363T patent/ATE233336T1/de not_active IP Right Cessation
- 1999-06-10 CN CN99807979A patent/CN1094532C/zh not_active Expired - Fee Related
- 1999-06-10 DE DE59904381T patent/DE59904381D1/de not_active Expired - Lifetime
- 1999-06-10 JP JP2000557034A patent/JP2002519531A/ja active Pending
- 1999-06-10 EP EP99923363A patent/EP1092053B8/de not_active Expired - Lifetime
- 1999-06-10 WO PCT/CH1999/000252 patent/WO2000000687A1/de not_active Application Discontinuation
- 1999-06-10 TR TR2000/03798T patent/TR200003798T2/xx unknown
- 1999-06-10 KR KR1020007014886A patent/KR20010071630A/ko not_active Application Discontinuation
- 1999-06-10 CA CA002336098A patent/CA2336098A1/en not_active Abandoned
- 1999-06-10 AU AU40285/99A patent/AU4028599A/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR698064A (fr) * | 1930-06-25 | 1931-01-27 | Moore And Avery Blackburn Ltd | Perfectionnements aux appareils pour sélectionner et séparer les fils de chaîne dans la préparation de la chaîne utilisable dans les métiers à tisser |
CH331810A (de) * | 1953-08-12 | 1958-08-15 | Koefoed Hauber Marstrand Og He | Kreuzstab zum Kreuzlegen der Fäden einer Fadenschicht |
GB2117419A (en) * | 1982-03-25 | 1983-10-12 | Dornier Gmbh Lindauer | Apparatus for the separation and preparing of warp threads for the drawing in of warp threads in healds and dents |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002088445A2 (de) * | 2001-04-25 | 2002-11-07 | Stäubli Ag Pfäffikon | Vorrichtung und verfahren zur separierung von fäden aus einer fadenschicht |
WO2002088445A3 (de) * | 2001-04-25 | 2003-02-06 | Staeubli Ag Pfaeffikon | Vorrichtung und verfahren zur separierung von fäden aus einer fadenschicht |
WO2002101132A1 (de) * | 2001-06-12 | 2002-12-19 | Stäubli Ag Pfäffikon | Verfahren und vorrichtung zum spannen eines kettfadens |
US7081146B2 (en) | 2001-11-01 | 2006-07-25 | Alfa Laval Corporate Ab | Apparatus for simultaneous cleaning of a liquid and a gas |
US7156901B2 (en) | 2001-11-01 | 2007-01-02 | Alfa Laval Corporate Ab | Apparatus for simultaneous cleaning of a liquid and a gas |
Also Published As
Publication number | Publication date |
---|---|
CA2336098A1 (en) | 2000-01-06 |
EP1092053B8 (de) | 2003-06-25 |
CN1307655A (zh) | 2001-08-08 |
KR20010071630A (ko) | 2001-07-28 |
TR200003798T2 (tr) | 2001-07-23 |
JP2002519531A (ja) | 2002-07-02 |
EP1092053B1 (de) | 2003-02-26 |
DE59904381D1 (de) | 2003-04-03 |
CN1094532C (zh) | 2002-11-20 |
ATE233336T1 (de) | 2003-03-15 |
EP1092053A1 (de) | 2001-04-18 |
AU4028599A (en) | 2000-01-17 |
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