CN1094532C

CN1094532C - Device and method for separating threads from layer

Info

Publication number: CN1094532C
Application number: CN99807979A
Authority: CN
Inventors: W·谢珀
Original assignee: STOEBLI PFEEFIKON
Current assignee: STOEBLI PFEEFIKON
Priority date: 1998-06-29
Filing date: 1999-06-10
Publication date: 2002-11-20
Anticipated expiration: 2019-06-10
Also published as: EP1092053B8; ATE233336T1; AU4028599A; TR200003798T2; CA2336098A1; EP1092053A1; CN1307655A; KR20010071630A; JP2002519531A; DE59904381D1; WO2000000687A1; EP1092053B1

Abstract

The invention relates to a method and a device for separating adjacent threads which are stretched in a first and a second location and substantially form together a surface. In order to provide a method and a device serving to reliably separate threads from a yarn layer even when the threads consist of so-called untwisted multifilaments, several threads are grasped with separating means (5, 15, 25, 35) at least in one location, whereupon the grasped threads are subjected to different relative accelerations substantially in their transversal direction. After one or several separation processes, the first thread can be easily grasped, e.g. by a drawing-in hook and then removed from the layer.

Description

In order to from layer, to isolate the apparatus and method of yarn

The present invention relates to a kind of device that is used for separating the yarn that is positioned at the adjacent position, these yarns are clamped on the primary importance and the second place, and constitute a plane or layer jointly.

It for example is the job step of necessity in the heddle component that yarn is penetrated loom that yarn separates.In the case, warp thread is stretched in common formation one thread layer on the framework.Single here yarn leans on very closely mutually.Before penetrating, yarn must separate from layer, and is just separated from each other.But this is not very simple.Problem also appears at when having constituted a part of warp thread of fabric and a new thread layer and carry out the warp thread joint with weft yarn in addition.Here warp thread also is to be clamped on the framework, and must be by Warp tying machines from layer separately before joint.

Separating in the apparatus and method of this yarn in known being used for, for example be pin to be inserted between the single yarn adjacent yarn is delimitated, thereby passing in the process afterwards can be caught single yarn.Perhaps in advance a so-called separator is being placed between the yarn, is having two to become horizontal rope to be threaded into or to inweave between warp thread here with warp thread.In order to separate, so for example can alternately draw the one or both ends of separator.The each top yarn of result just separates with remaining.

The shortcoming of this known method and apparatus especially is: for the occasion of the warp thread of being made up of so-called multifilament, the insertion of pin will be restricted.Particularly when multifilament be no twist or when having very low fiber number, or when the density of thread layer when being very inhomogeneous.When adopting the method for separating, also must pass pin by artificial or machinery in order to penetrate two ropes in addition, so that separate, therefore foregoing problem still exists.Though warp thread can separate and store neatly by after separating, the penetrating of separation rope remain one extra and be the very course of work of complexity.If the separation of warp thread is unclean, then will weaving or cause broken end during at the warp thread joint, thereby cause bad productivity.Even this situation also can take place under the situation of the Warp tying machines that is provided with the two-wire detection.

Also knowing from FR 698 064 or GB 2 117 419 has another kind of method, does not wherein adopt separator, and the separation of yarn from layer only realizes by a rotary body that is provided with the screw-like side at circumference.But the method only is applicable to the separation of the multifilament of staple fibre yarn or twisting.In the yarn of being made up of multi-fibre of not twisting, yarn is easy to separate in the mode of monofilament, therefore almost no longer may realize clean separation.

Task of the present invention is to provide a kind of method and apparatus, particularly makes device in this way, can carry out the separation of yarn from a layer reliably with it, and particularly when yarn is made up of so-called multifilament of not twisting or fibrillation.

As described in the feature in claim 1, the present invention solves this task by its first viewpoint.According to this viewpoint a kind of device that is used for isolating single yarn from the layer of being made up of many yarns that are held two positions has at least been proposed, it is characterized in that: it has a separator and is used for catching threads at least on each position, and makes the yarn of being caught transversely cause different relative accelerations at it basically with it.

According to second aspect, this task solves like this, a kind of method that is used for isolating single yarn from the layer of being made up of many yarns that are held two positions has at least wherein been proposed in claim 12, it is characterized in that: on each position, catch threads at least with a separator, and transversely doing in order to different relative accelerations at the yarn that is booked.

The frame mode that the present invention recommended can be known from each dependent claims 2-10 or 13-21.

By the present invention, can be clamped in the layer that at least two locational yarns are formed from one by many, just for example the warp thread on being clamped in a framework, at least on each position, catch threads with a separator, and transversely doing in order to different relative accelerations at the yarn that is booked.Thereby produce progressive moving, the yarn of traverse maximum just from the distance of the thread layer that is not booked farthest, if therefore this one thread is from the admissible words of the distance of second one thread, it can for example be caught and move apart layer by an independent pin from this new position.If the yarn that is booked basically at its single acceleration transversely because first one thread is in from second one thread too closely and not enough, then be booked and the yarn that is offset can be booked on the another location and continue to move once again.If the distance from second one thread permits, then first one thread for example can pass pin with one now and catches and remove from layer from this new position.Catch and be shifted alternately to go on, be in till second one thread has enough distances up to first one thread, in the case, the yarn that is booked certainly just is released, then by catching and being shifted and change their mutual alignment in succession.

Be clamped in for the purpose of the purpose of catching threads at least two locational layers in order to be applicable to from one by many, this device should have a separator at least, and it preferably includes:

1. an energy is round the approximate spiral conveying worm with the pitch that increases gradually that is parallel to the rotating shaft of layer and rotates.

Two energy round first with layer plane meet at right angles the basically rotating shaft of position and mobile pressure bar, they are so mutual settings, promptly they can be clamped in the yarn of being caught by them in the middle of them.

3. two flexible rod to extend basically perpendicular to the yarn bearing of trend, they are so mutual settings, promptly they can be clamped in the yarn of being caught by them in the middle of them.

Three energy round first basically with layer plane the meet at right angles rotating shaft of position and mobile separation bar, they are so mutual settings, promptly they can be twined by thread segment ground at least.

The advantage of Huo Deing particularly is therefrom: separate can all possible yarn variety be carried out reliably once the step, for example short fibre yarn, have the multifilament of high fiber number or low-titer, and fibrillation twisting or that do not twist with arbitrary number.The method can be used for separating on drawing-in machine and the Warp tying machines equally.Here yarn can very be handled carefully in addition.

In addition as required, to each separator that uses separately, just to rotating or flexible pressure bar or to rotating separation bar, one second kind to the 4th kind additional separator also can be set, so that can alternately catch and be shifted until first one thread has till enough distances apart from second one thread.Also have an advantage through proof in addition, promptly also additional so-called backer roll increases the pressure of yarn on the helical feed worm screw on first kind of separator.For for the purpose of strengthening separating effect, also can adopt one second conveying worm in addition.

The present invention will be described according to accompanying drawing below, and they represent the possibility of various enforcements, but under any circumstance do not define scope of the present invention.Wherein:

Fig. 1 is illustrated in the top view of a thread layers that is held, and catches some yarns by first embodiment of the invention,

Fig. 2 represents to separate some yarns by first embodiment of the invention.

Fig. 3 is illustrated in the top view of a thread layers that is held, and catches some yarns by second embodiment of the invention.

Fig. 4 represents to separate some yarns by second embodiment of the invention.

Fig. 5 is illustrated in the top view of a thread layers that is held, and catches some yarns by third embodiment of the invention.

Fig. 6 represents to separate some yarns by third embodiment of the invention.

Fig. 7 is illustrated in the top view of a thread layers that is held, and catches some yarns by four embodiment of the invention,

Fig. 8 represents to separate some yarns by four embodiment of the invention.

Fig. 9 represents to separate by the evolutionary approach to the 4th embodiment of recommending the 3-D view of independent yarn.

Figure 10 represents the 3-D view that separates independent yarn with the method that the 3rd embodiment combines by second.

Common is in institute's drawings attached: they all show many adjacent yarns 1 that are positioned at, and they are clamped on primary importance in first element 2, and are clamped on the second place in second element 3.Therefore they constitute a flat basically layer 4 jointly, and

element

2 and 3 for example is the part of framework used in drawing-in machine.

Fig. 1 represents first embodiment by apparatus of the present invention, it has two rods 6,6 ' as first kind of separator 5, it is used for catching threads 1 on each position S at least, and transversely acts on the yarn that is booked with different relative accelerations at it basically.These rods be designed to can round first basically with the layer plane meet at right angles the position rotating shaft 7 and rotate.They are so mutual settings, and promptly they can be clamped in the yarn of being caught by them in the middle of them.This position that is used for catching first kind of separator 5 of some yarns here is expression like this: rod 6,6 ' be provided with parallel to each other basically, and to having the direction that obviously departs from by a rectangular direction of the bearing of trend with yarn 1 and extending.

Fig. 2 represents that separator 5 has turned to basically the rectangular position of original bearing of trend with yarn 1 here.Separator 5 rotates through an angle 8, it dot catch the position and with the separation point position shown in the solid line between.Each position S that is booked on some yarns 1 remains substantially the same distance with rotating shaft 7, because they only are to rotate an angle 8.But the yarn that is booked distance has each other then become greatly, and the rotation by separator 5 makes all yarns that are booked become basically its bearing of trend on the horizontal direction to obtain an acceleration.

Fig. 3 represents second embodiment by apparatus of the present invention, it comprises 3 rods 16,16 ' with 16 " as second kind of separator 15; be used for catching threads 1 on each position S at least, and laterally act on the yarn that is booked with different relative accelerations at it basically.These rods be arranged to can round first basically with the layer plane meet at right angles the position rotating shaft 7 and rotate.They are so mutual settings, and promptly they are twined by yarn that caught at least in part.This position that is used for catching second kind of separator of some yarns here is expression like this, it is rod 16,16 ' and 16 " be provided with parallel to each other basically, and by one is had the direction that obviously departs from the rectangular direction of yarn bearing of trend and extends.

Fig. 4 represents that separator 15 has turned to basically the rectangular position of original bearing of trend with yarn 1 here.Separator 15 rotates through an angle 8, it be positioned at dot catch position (only represent rod 16 ') and with between the separation point position shown in the solid line.At each position S countershaft 7 that yarn 1 is booked a substantially the same distance is arranged all the time, because they only are to have rotated an angle 8, but the yarn distance each other that is booked has then become greatly.Rotation by separator 15 makes all yarns that are booked become basically on the horizontal direction to obtain an acceleration with its bearing of trend.

Fig. 5 represents the 3rd embodiment by apparatus of the present invention, it comprises two flexible rod 26,26 ' be used for catching threads on each position S at least as the third separator, and transversely act on the yarn of being caught with different relative accelerations at it basically.These rods are so mutual settings, and promptly their are clamped in the yarn of being caught by them in the middle of them.This position that is used for catching the third separator of some yarns here is expression like this, i.e. rod 26,26 ' be provided with parallel to each other basically, and become approximate right angle orientation at least with the bearing of trend of yarn 1.

Fig. 6 represent separator 25 here be equally basically with the rectangular position of original bearing of trend of yarn 1, but separator 25 is vertically extended (direction of arrow) with it.On each position S that some yarns are booked, now the yarn that is not booked had a distance that increases gradually.By flexible rod 26,26 ' extension can make all yarns that are booked become with its bearing of trend basically to obtain an acceleration on the horizontal direction.

Described rod 6,6 '; 16,16 ', 16 "; 26,26 ' in all or have only other rod can have one by such as the curve of circle, ellipse etc. or such as cross section that triangle, square, rectangle, pentagon or other polygons limited.Thereby rod 6,6 '; 16,16 ', 16 "; 26,26 ' with the yarn of being caught between form friction or tight being connected, if all rods or have only the surface energy of indivedual rods to have a special high friction material such as rubber or be equivalent to surface for example as comb.Preferably rod 6,6 '; 16,16 ', 16 "; 26,26 ' vertical friction greater than its horizontal friction.Certainly also have many different possibilities design these rods 6,6 '; 16,16 ', 16 "; 26,26 ', and their are installed and driving makes it to move by described direction.This possibility performance is known from other field, so do not do detailed explanation here.

According to described method or using under the situation of described device, the yarn that remaining yarn 1 yarn farthest never is booked in layer 4 in all yarns that are booked 9 is through the stroke of a maximum.

Fig. 7 represents the 4th embodiment by apparatus of the present invention, it have one round rotation, that pitch increases a gradually helical feed worm screw 37 with the parallel at least approx rotating shaft 36 of layer 4 as the 4th kind of separator, be used on each position S, catching threads 1 at least, and transversely act on the yarn of having caught at it basically with different relative accelerations.This conveying worm is to extend with the rectangular direction of the bearing of trend of yarn 1.

Fig. 8 represents that separator 35 is the bearing of trend rectangular position original with yarn 1 equally here, but separator 35 rotates round rotating shaft 36.On the each point S that yarn is booked, has a distance that increases gradually from the yarn that is not booked now.Energy of rotation by conveying worm 37 makes all yarns that are booked become with its bearing of trend basically on the horizontal direction to obtain an acceleration.Make the yarn that is booked obtain different relative accelerations by the pitch that increases.Therefore be positioned at apart from yarn 1 one thread 9 farthest of layer 4 and now second one thread 10 had than second one thread from the bigger distance of the 3rd one thread.

Fig. 9 represents the 3-D view that separates according to a single yarn to the evolutionary approach of the 4th embodiment of being recommended.37 expressions, one rotatable conveying worm, it can have a cylindrical screw shape, if this conveying worm is to be designed to columniform words; Maybe can have a trochoid spiral shape, if this conveying worm is to be designed to conical words.Also can design like this, the beginning section that is conveying worm is conical, and all the other are columniform, in contrast, particularly advantageous is a kind of like this conveying worm, it is at least for example having a clip or pin to accept to be provided with in the zone of first one thread 9 parallel with layer 4 a basically plane, because the centrifugation of conveying worm is the strongest like this.As shown in the figure, also be provided with a backer roll 12.This backer roll is close on the yarn from layer first side, and conveying worm 37 to second side pressure of layer 4 on some yarns.Conveying worm 37 is to be provided with and to drive with the method for knowing round rotating shaft 36, so no longer explanation here.It particularly has a groove or a muscle that holds with helical form, and its pitch 38 increases on the detaching direction of yarn 9 gradually.Conveying worm 37 is preferably in dorsad, and an end 13 of first one thread 9 attenuates.Backer roll 12 can be pressed the direction shown in the arrow 14 and be provided with movably, and drives with the method for knowing.If also be provided with second conveying worm 37, one second backer roll 12 then also can be set, preferably two conveying worms 37 are arranged between two backer rolls 12 here.

With Fig. 7,8 is different with 9, and for the purpose of strengthening centrifugation, conveying worm 37 can add the origin or beginning that spiral is set between adjacent helicla flute.

If can not be when a clip or pin be accepted first one thread 9 and are finished the separation of yarn (perhaps being) in a single course of work because the cause that yarn 1 is made up of thin especially untwisted fibrillation, can described in front separator 5,15, adopt any combination of two identical or different separators in 25,35.So can accept and proceed to separate by another separator 5,15,25,35 by the yarn that a separator 5,15,25,35 to small part is separated.Continuation by selected each separator is alternately worked, and can obtain a significant separating effect.

Figure 10 carries out the three-dimensional views that single yarn is separated according to second kind of combination with the third embodiment.Separator 15 here comprise one group of separation bar 16,16 ', 16 ", they are partly twined by some yarn 29-32 at least, perhaps it makes yarn skew and arranges on ground, a back by one in the direction of yarn.According to this figure, the separation bar 16,16 of two outsides " is pressed on the same side of layer an and middle separation bar 16 ' the be close to opposite side of layer.Certainly, opposite with above explanation (Fig. 3,4,10), separation bar 16,16 ', 16 " also can be arranged in the opposite side on surface 4.Separation bar 16,16 ', 16 " be to install like this, promptly they can be from being turned to one by the represented position of straight line 34 by straight line 33 represented primary importances.Can also see a clip 39 that belongs to the drawing-in machine parts here.

Two flexible rod 26,26 ' be as another separator.The yarn 29-32 that they catch a part to separate at least is so that disconnected from each other them extraly in further separating step.If necessary, also can with separation bar 16,16 ', 16 " carry out the work of the 3rd step and further improve separating effect, can clamp first one thread 29 thereby make as the clip 39 of a drawing-in machine part.

The method according to this invention and device, its method of operation is as follows:

The starting point of this method is the perhaps many yarns 1 of a thread layers that are clamped on

position

2 and 3, and forms a surface or layer 4 basically.At first as Fig. 2,4, shown in 6 and 8, some yarns 1 clamped with basically to become horizontal direction with its bearing of trend and to be shifted, make a distance is arranged between yarn 29 and 30, this distance is greater than the distance between the yarn of not catching 1, catching but mainly be the displacement that is planar taken place by preferably by yarn, so if yarn 1 is made up of so-called multifilament, just can form fibrillation triangle 40 (see figure 10)s, leg-of-mutton formation is owing to yarn has lost its original cylindrical cause that is pressed into laminated structure.

The purpose of separating is to guarantee that first one thread 9 or 29 can be accepted by a clip 39 or pin.Under the situation of untwisted yarn, but therefore the separation of the generation deferrable success of fibrillation triangle 40 separates and must carry out with two or more job steps, perhaps till the fibrillation triangle is no longer overlapping.

Claims

1. be used for from one by many at least two positions (2,3) isolate the device of single yarn in the layer (4) that the yarn that is held on (1) is formed, it is characterized in that: this device comprises a separator (5,15,25,35) be used for catching threads on each position (S) at least, and do in order to different relative accelerations on the yarn that is booked with the horizontal of yarn basically.

2. according to the device of claim 1, it is characterized in that: separator (5,15,25,35) comprise that one is parallel to the rotating shaft (36) of layer (4) and spirality conveying worm (37) rotation, that have gradually the pitch (38) that increases at least approx round one.

3. according to the device of claim 2, it is characterized in that: conveying worm (37) is provided with additional spiral helicine top between two adjacent helicla flutes.

4. according to the device of claim 2, it is characterized in that: it is additional to be provided with a backer roll (12) and to be used for increasing the pressure of yarn on spirality conveying worm (37).

5. according to the device of claim 1, it is characterized in that: separator (5,15,25,35) comprise that two energy are round first pressure bar (6 that moves with the rectangular rotating shaft in layer plane (7) basically, 6 '), they are so mutual settings, promptly they can be clamped in the yarn of being caught by them in the middle of them.

6. according to the device of claim 1, it is characterized in that: separator (5,15,25,35) comprise two flexible rod (26,26 ') to extend basically perpendicular to the yarn bearing of trend, they are oppositely arranged like this, and promptly they can be clamped in the yarn of being caught by them in the middle of them.

7. according to the device of claim 1, it is characterized in that: separator (5,15,25,35) comprise three energy round first separation bar that moves with the rectangular rotating shaft in layer plane (7) basically (16,16 ', 16 "); they are so mutual settings, promptly they are twined at least in part by yarn that caught.

8. according to claim 5,6, or 7 device, it is characterized in that: it also is provided with fixing clamping rod or can be round a mobile clamping rod with rectangular second rotating shaft in the plane of layer (4) basically in addition, is used for keeping the yarn of being caught and partly separated at least.

9. be used for being stretched in two positions (2 from one by many, 3) isolate the method for single yarn in the thread layers (4) that the yarn on (1) is formed, it is characterized in that: with a separator (5,15,25,35) catching threads on each position (S) at least, and doing in order to different relative accelerations on the yarn of being caught with the horizontal of yarn basically.

10. according to the method for claim 9, it is characterized in that: the yarn of catching is gone up separated rotating shaft (a 36) spirality conveying worm (37) upward rotation, that have a pitch that increases gradually that is parallel to layer at least approx.

11. the method according to claim 10 is characterized in that: utilize a backer roll (12) to come the yarn that is positioned on the conveying worm (37) is applied an additional pressure.

12. method according to claim 9, it is characterized in that: the yarn that is booked at two energy round first pressure bar (6 that moves with the rectangular rotating shaft in plane (7) of layer (4) basically, 6 ') between clamped, yarn is thereon partly separated round the rotation of first rotating shaft (7) at least by rod (6,6 ').

13. method according to claim 9, it is characterized in that: the yarn of having caught is clamped at two flexible rod (26 to extend perpendicular to the yarn bearing of trend basically, 26 ') between, yarn thereon extends longitudinally and is partly separated at least at it by rod (26,26 ').

14. method according to claim 9, it is characterized in that: the yarn of having caught is maintained at three energy round first separation bar (16 that moves with the rectangular rotating shaft in plane (7) of layer (4) basically, 16 ', 16 "); wherein these rods (16; 16 ', 16 ") are twined at least in part by yarn, yarn thereon by rod round the rotation of first rotating shaft (7) and partly separated at least.

15. each the method according among the claim 9-14 is characterized in that: at least alternately adopt two devices in the separator (5,15,25,35).