CN1710168B - Method and device for shedding jacquard patterned pile warp yarns in a face to face weaving machine - Google Patents

Abstract

The invention relates a method and a device used for forming the shed of the jacquard weave pile thread of a two-side pile loom. The loom has at least two weft insertion regions (51, 52) which are arranged between the adjacent shed plane respectively, and one weft insertion region lies above another. Pile yarns can be assigned to shed planes (O, M, U) respectively via strands (31, 32) before per weft insertion and move into the shed planes according to the opening operation type of the shed. Non-jacquard weave pile yarn group stitches into one of two base cloths and the jacquard weave pile yarns tighten between the two base cloths. The shed height in the position region of the finally end of a sley agrees with the predetermined height of the jacquard weave pile yarns by driving the strands (31, 32) by a electric actuator part according to optional program control under the condition that the pile strands are not tied in the shed forming process.

Description

The method and apparatus that the shed open of the jacquard weave pile warp on the double-faced pile loom forms

Technical field

The present invention relates to the method and apparatus that a kind of shed open that is used for the jacquard weave pile warp on the double-faced pile loom forms, have at least two on this loom and lay respectively between the adjacent shed open plane and a wefting insertion zone that is positioned at above another; Pile yams is distributed to a shed open plane respectively and is moved into this shed open plane according to shed open opening action type at last via heald corresponding to jacquard weave and selected tissue; The winding of non-jacquard weave pile yams is tied in a top layer base cloth (top cloth) and/or the bottom base cloth (base fabric), and jacquard weave pile yams access node is in top layer base cloth or bottom base cloth, tensioning between two base cloths simultaneously.

Background technology

At double shuttle port machine or have on the loom more than a wefting insertion zone, usually according to desired tissue, with participate in warp thread that shed open forms distribute to lay respectively at top, wefting insertion zone, below or between the shed open plane.Select the pile warp on each single shed open plane separately or in groups by shed forming device, then it is moved into predetermined new shed open plane.In this case, pile warp is with from the bigger or less distance of the motion path of weft insertion members and tangent with the wefting insertion zone.

For pile yams, target is to obtain big as far as possible shed open opening angle; And attachment warp and tensioning warp thread very closely with the path of weft insertion members tangent or with wefting insertion zone tangent and guiding pile yams.

For the purpose that shed open forms, guide all pile warps to pass by the harness eye on the heald of jacquard weave drive unit driving (combining ring).When a heald was distributed to a specific shed open plane, its stroke always ended at same position.This position is by precalculated position and jacquard tool box or refer to that the stroke of rake (finger rake) is definite.

DE 199 24 689 C1 disclose a kind of device, can near the warp thread of limit the shed open opening angle be remained limited size by this device.These shed open limiters act on respectively on the shed open plane, two outsides, and the shed open opening angle is constrained in the wefting insertion process, can enough keep the yarn end of not beaten up yet of inserting by nozzle reliably.

Disclose a kind of device among EP 1 069 218 B1, this device has the independent shed open formation drive unit that a shed open that is used for the warp thread on the loom forms, wherein, and the shared single wefting insertion zone of each warp yarn.The actuated components that is used for this purpose comprises a motor, and the driving wheel of this motor is connected to a messenger wire (harness cord, harness cord).The stroke size can change with the beat up distance on limit of each heald and weft yarn, to guarantee the shed open opening angle of requirement.

US 6,293, and 315 B1 have described a kind of similar device, and wherein, the drive wheel design of motor becomes the part of assembly pulley.

These last-mentioned documents---DE 199 24 689 C1, EP 1 069 218 B1 and US6,293,315 B1---only relate to the loom that only has a single wefting insertion zone and two shed open planes.The fabric of producing on these looms is an open width fabric.On these looms, the height of shed open is lower.

On the loom with two or more wefting insertion zone, whole shed opening increases significantly.On double-faced pile loom, the shed open that can not use each actuated components to be used for pile yams forms.Usually, the very bulk pile yams that guides in very limited space can twine and lump together, and does not allow the shed open opening angle to reduce.

When the big shed open opening angle of needs, thereby the energy that each actuated components needs and its heating also increase.Under situation about need closely assemble to actuated components, cooling problem particular importance, and also do not have effective method in operation.

For reducing the shed opening of the shed open on the double-faced pile loom, DE 32 05 227 A1 are in order to improve performance, and suggestion is at parallelogram guiding slay.By this structure, can limit the height and the operation thereof of slay especially significantly.Therefore, the heald of guiding pile yams can lead to from nearer position, wefting insertion zone.The stroke of heald reduces.Yet the shed open opening angle remains unchanged.

Even when making in this way the slay of guiding, still cannot use messenger wire is wound on each rotary-actuated parts on the spool.

Summary of the invention

The objective of the invention is to revise the design of shed open, if make each actuated components that suitably is used to control pile yams, can reduce the shed opening of pile yams, but pile yams can not twine each other and closes in the shed open forming process, the while warp count remains unchanged.

According to the present invention, this purpose can realize by the described method of claim 1.

What the shed open of correction can be realized according to the present invention is, the difference of the shed open size that is caused by the different access nodes position on the different base cloths can be compensated, because when pile yams during as the knotting of dead pile yarn or jacquard weave pile yams to start with, pile yams shed open is laterally carried out a less stroke.

By this novel shed open formation method, the advantage of the actuated components of control can be given to double-faced pile loom separately, and pile yams bulk on this loom is with the high density access node, and this loom has more than a wefting insertion face.

Another advantage of the present invention is that therefore the shed open that reduces allows the slay that use size and quality significantly reduce.This causes the increase of loom velocity of rotation.Being fixed on the slay and stretching into the element of shed open---for example be used for weft insertion members lead tooth (guide teeth) or the pilot jet under the pneumatic picking situation---can design shortlyer, and therefore lighter and more stable.

According to claim 2, by pile yams staggered at its end position, even under the situation that reduces the shed open size, in the shed open conversion process, pile yams also can be loosened to each other and can not twine each other and be closed.

How claim 3 is carried out different strokes by shed open laterally with regard to the shed opening of pile yams in the claim 1 and is reduced to describe more accurately.

According to claim 4, the staggered cooperation that twines that has also reduced in these zones of the end position of heald is used in the shed open of the outside.When the new jacquard weave pile yams in the shed open of the outside when each dead pile yarn thigh (strand) discharges, these zones are most important.

According to claim 5, the correction of shed open conversion is made that twining the pile yams of closing can more unclamp reliably each other, simultaneously, shed open can not enlarge in the moving region of slay enduringly.

The action type that limits in the claim 6 has avoided velvet head line to assemble in middle shed open effectively temporarily, thereby prevents that effectively twining of pile yams from closing.

Claim 7 illustrates the modification method of realizing this purpose.Replace making the difference of the pile yams in the shed open of the outside to locate situation about changing with the last tissue in the base cloth, here use a mechanical shed open limiter, this limiter is transformed into the motion amplitude of the pile warp of adjacent outside shed open according to the base cloth from place own in the shed opening restriction slay zone.

Device described in the claim 8 is used to realize claim 1 in a simple mode.Correction according to claim 9 helps warp thread loose each other.

Claim 10 defines the device of the method that is used to realize claim 7.Claim 11 has illustrated the favourable structure and the layout of the shed open limiter of the method that realizes claim 7.

Description of drawings

To be described in more detail the present invention by exemplary embodiment below.In the accompanying drawings:

Fig. 1 illustrates the summary sectional view of the shed open of a double-sided plush head fabric weaving machine;

Fig. 2 illustrates the movement profiles of the pile yams of top cloth;

Fig. 3 illustrates the movement profiles of the pile yams of base fabric;

Fig. 4 illustrates the diagram and the motion of a pile yams in the pile yams transfer process of a double pile;

Fig. 5 illustrates the shed open sectional view with the similar summary of Fig. 1, and a control of the difference of pile warp and a shed open limiter;

Fig. 6 illustrates the movement profiles of the pile yams of top cloth, and this figure is fit to Fig. 5;

Fig. 7 illustrates the general perspective of shed open limiter;

Fig. 8 illustrates the detailed view that is used for utilizing pad yarn (yarn feeding) heald guiding shed open limiter;

Fig. 9 illustrates the more detailed view of shed open, wherein can obviously find out the staggered of heald heald end loop in each shed open plane;

Figure 10 illustrates the schematic illustration of the drive unit that utilizes rotary-actuated parts of heald;

Figure 11 illustrates the movement profiles of pile yams in the shed open conversion/shed open displacement (shedtransfer) of the overtravel of using finite time; And

Figure 12 illustrates the movement profiles of pile yams in the shed open conversion process, wherein, passes the time interleaving of the path at shed open center.

The specific embodiment

Fig. 1 illustrates the principle of the present invention according to the first solution modification.

Double pile 6 is batched from weft yarn limit 11 beginning of beating up, and guides between the plate of guide 1.Pile yams is tied a knot in top layer base cloth 61 or bottom base cloth 62.With reference to figure 4, the non-jacquard weave pile yams 71 that is also referred to as dead pile yarn of top cloth 61 regularly access node between back weft (back of the body latitude) 81 and interior latitude 82 of top cloth 61.The non-jacquard weave pile yams 72 or the dead pile yarn of base fabric 62 also are like this.These non-jacquard weave pile yams or dead pile yarn access node are between the back weft 83 and interior latitude 84 of base fabric 62.

If one in these non-jacquard weave pile yams (up to the present only having mentioned non-jacquard weave pile yams 71,72) is selected for the formation jacquard weave, so, different with all the other non-jacquard weave pile yams is, selected pile yams 73 outside (up or down) move on to wefting insertion zone 51 top or wefting insertion regional 52 below.Pile yams 73 can be pulled to the upper right side by the last tissue (lastweave) in its base cloth 61 in this case, and tangent with the outside in the wefting insertion zone 51 that is close to.The harness eye 311 of heald 31 of guiding pile yams 73 is positioned on the additional inside upper part shed open plane O2 that is limited by above-mentioned 2 points (the last tissue on the base cloth 61 and with wefting insertion zone 51 tangent).

With pile yams 71 and 72 access nodes outer periphery the time, suppose that in the access node of dead pile yarn pile yams 71 and 72 access nodes are in a same position at the interior latitude of its base cloth.

The shed open that forms in the moving region of reed 21 is littler than the shed open that up to the present usually will form under the situation of the harness eye inflow location O1 of heald 31 significantly.In this, the plane 730 and 740 in can comparison diagram 1.Residual quantity a and b (mostly being 10mm respectively most) have been moved to the shed open center in shed open border, upper and lower.Slay 2 or reed 21 can shorten or reduce this amount approximately.Slay 2 or reed 21 can become lighter and more stable.

As shown in Figure 2, when the pile yams 73 of this new selection when position O2 continues its motion that forms jacquard weave, the harness eye 311 of the guiding pile yams 73 of heald 31 at first moves to outer lower portion shed open plane U1, moves into outer upper shed open plane O1 then.This control to pile yams can not damage actual shed opening, because the last binding place that is used for making pile yams form jacquard weave lays respectively at relative base cloth 61,62.

If the non-jacquard weave pile yams 74 of bottom base cloth 62 is selected for the formation jacquard weave, so,, at first moves the path increment H1 ' that shorten and enter shed open plane, bottom U2 with the harness eye 321 of heald 32 from the pile yams 74 of middle shed open M2 according to Fig. 3.The last binding place of plane from bottom base cloth 62 that pile yams 74 is extended begins, and tangent with the outside, bottom in wefting insertion zone, bottom 52.

Therefore, even in this case, the shed open in the slay zone also can design than the little residual quantity b of shed open that forms in a conventional manner.The harness eye 321 of heald 32 conventionally moves into shed open plane U1, thereby pile yams is extended in plane 740.

Can obviously find out the further motion of the harness eye 321 on the heald 32 from Fig. 3.Passing in (pass) process below, pile yams 74 move into outside shed open plane O1 or U1 respectively.In this case, the shed open in reed 21 zones can not become greatly yet, because the binding place before of pile yams 74,75,76 is arranged in relative base cloth 62,61.

Above employed term " tangent with the wefting insertion zone " can not be understood as path directly tangent of weft insertion members.Under most of situation, attachment warp 611,621 or usually said in shed open the tensioning warp thread (with reference to figure 9) of these weft insertion members of guiding separate a slight distance with these paths and tangent.Under most of situation, tangent also often to be easy to twine the pile yams and the wefting insertion zone outside attachment warp or the tensioning warp thread of closing than the low-tension conveying.

Under specific pile material situation, thereby shed opening reducing in this way can cause pile yams to twine each other closes and stops shed open to be opened.Being used for the jacquard weave pile yams and must this situation can occurring when access node dead pile yarn thigh is for a long time pulled out in the same manner when new selection.This situation occurs in the time of most of when middle shed open enters the outside shed open of distributing to specific base cloth respectively.

This shortcoming overcomes like this, that is, the pile yams in middle shed open M1, the M2 is arranged in the wefting insertion process in short transverse staggered, make pile yams can be in a reed width location parallel to each other and adjacent one another are.

In Fig. 1, show this staggered by the harness eye position in the middle shed open.It is favourable changing staggered in the adjacent reed width.Be transformed into center channel that another outside shed open or immerse oneself in may relate to when bar (dead pole) is changed to avoiding twining cooperation with also being very important in the jacquard weave pile yams between outside shed open and middle shed open from an outside shed open.In this stage, when pile yams was passed middle shed open or shed open center, it also was favourable that these pile yams are contacted each other in succession in staggered mode.Can reduce significantly to twine thus and close, and generally speaking, can adopt shed opening that reduces and the shed open opening angle that reduces, simultaneously, pile yams can not twine and merge and weft insertion members can not interrupt (beatthrough) these twine and close pile yams.In this respect, also can be relatively about the statement of Figure 11 and 12.

Yet the control that pile yams is begun to form in jacquard weave or the formation jacquard weave process described here can not realize by traditional jacquard.

Yet, can realize (with reference to Figure 10 and EP 1 063 326B1) are controlled in the shed open formation motion of necessity by usually said actuated components or the motor 37 of distributing to pile warp or its heald respectively.

Said motor 37 by central controller receive the stroke with shortening, staggered starting position and time difference (time deviation) center channel corresponding difference (different, differentiated) control program.

The stroke that shortens

H1; H1 ': a position that occurs in the staggered middle shed open position between M1 and M2 enters a shed open position O2 and U2, perhaps

H2; H2 ': from a shed open position O2 to U1, perhaps from a shed open position U2 to O1.

These and other the traditional control program that is used for motor 37 can change according to the position of heald 31 in the zone 3 of jacquard weave control heald 31 at the stroke of any type, makes shed open can not surpass the predetermined full-size in the moving region of reed 21.

When pile yams was taken back in its base fabric when forming the jacquard weave end, this pile yams moved into middle shed open M1 and redistributes in its interleaved processes there to non-jacquard weave pile yams group; The back is then by control program that is used for usually said dead pile yarn 71,72 or the control of difference control program.

Here be pointed out that once more, even in access node process, also can be finish stroke H1, the H1 ' of shortening during in the outside via separately interior latitude 82,84 access nodes in these pile yams as the pile yams of dead pile yarn.

Fig. 5 illustrates second modification that is used for the method for restriction shed opening in the moving region of slay 2.Shed open limiter 4 is set directly at the downstream of the rearmost position of slay 2 or its reed 21.These shed open limiters 4 are arranged in last tissue from specific base cloth 61,62 and begin to extend into up or down a plane with tangent plane, contiguous 51,52 outsides, wefting insertion zone.

These planes are characterised in that the part of pile yams 73a and 74a.Using the shed open limiter at 4,41,42 o'clock, the stroke size H of heald 31,32 does not need according to inside and outside shed open difference (variation).Yet even during this time, the shed open position in the middle of also being necessary to make among shed open M1, the M2 is staggered, and makes the path that passes middle shed open M1, M2 staggered.

In this case, shed open also can keep less in the moving region of reed 21.The size of slay 2 can reduce, and allows the loom high speed operation.

Rearmost position and the space between the jacquard weave control heald 31,32 of considering reed 21 are very limited, and consider that the space 3 in jacquard weave control heald 31,32 zones must can be easy to carry out the fact of attended operation, therefore is difficult at this zone setting shed open limiter 4 fixing with respect to the machine column.

The one favourable form according to the present invention, shed open limiter 4 are designed to firmly fix (anchoring) tension metal silk 41 (with reference to figure 7 and Fig. 8) in the shed open both sides with respect to the machine column by tension element 410,420.

These tension metal silks 41 guide along shed open by the pad yarn heald 43 that is equipped with harness eye 44 and 45 spaced from each otherly.These pad yarn healds are securely fixed in top with respect to the machine column by screw element again and keep on the cross bar 47, and are fixed on the bottom tensioning cross bar 48 by spring 46.Along its axis prestress, the quantity of filling up yarn heald 43 like this obtains restriction to tension metal silk 41,42 by tension element 410,420.This layout of shed open limiter 4 can make the shed open restriction of wanting enough stable, and can not hinder the harness eye 311,321 that pile yams 71 to 76 enters heald 31,32.

Yet in the description according to Fig. 1 and Fig. 5, only the mode with the height summary has illustrated each end position of pile yams and path interlocking in middle shed open and outside shed open; The example of Fig. 9 by a shed open that amplifies substantially in proportion illustrated the staggered of harness eye position among the middle shed open M.The set of dispense that is made of three healds 31 in left side is given the pile warp of top cloth 61, and heald group 32 belongs to the bottom base cloth.

Harness eye position 311M, 321M are the positions of harness eye 311,321 shown in the middle shed open M1 zone, this position imaginary interim end position that is pile yams in the process of dead pile yarn access node in the middle shed open M1.If these pile yams form jacquard weave, these positions are each pile yams of arbitrary moment imaginary position in the shed open conversion process approx just so.

From here as can be seen, if this interlocking have only considerably less pile yams in a reed width of reed, to meet simultaneously.In such form, the twining each other to close significantly of pile yams is restricted.The interaction of the pile yams in the reed width is limited to minimum.

In the shed open of the outside, also can carry out the operation of similar type.When the dead pile yarn access node was in the upper outside shed open, the harness eye of heald was in position 311/O2.In this position, the group that is made of three (heald) has a position, makes that the neither one heald is directly adjacent to another heald guiding in this heald group in a reed width for the pile yams of tensioning.

Even when the pile yams thigh of jacquard weave pile yams from the shed open of the outside discharges, twine cooperation with also being restricted.Be in the situation of each outside shed open O1, U1 if consider the jacquard weave pile yams, we can see that the dead pile yarn description with in combining outside shed open O2, U2 of pile yams is similarly staggered.Yet,, have only one respectively because form the pile yams of jacquard weave usually simultaneously on this shed open plane even also be not to be necessary to carry out staggered accordingly fully in this zone.

Here use identical interlocking, thereby the programming that utilizes standard programming language (complex) that each actuated components is carried out can obtain simplifying.

Figure 10 has roughly illustrated the type that the heald 31 that is used for pile yams is driven by actuated components (being motor 37) once more here.Heald 31 guiding pile yams in the lower area enter its harness eye 311.Stride across a breast wheel 34 from heald 31 upwardly extending messenger wire 33 guiding, and be fixed to the batten 49 fixing with respect to the machine column.The axle of breast wheel 34 is connected to the messenger wire reel 36 of actuated components 37 by another messenger wire 35.Messenger wire reel 36 has spiral groove, and messenger wire 35 can be settled in this groove and discharge in an orderly way.

By using breast wheel 34, the size of reel 36 is limited to minimum.Yet a shortcoming should noting in this case is that required driving torque increases.This so cause motor dimension significantly to increase.Whether the big shed open size that need realize on a double shed loom uses breast wheel 34 to depend on those skilled in the art.

Figure 11 and 12 has illustrated curve movement once more, and wherein, pile yams moves in a controlled manner by actuated components during the shed open conversion.The shed open conversion mainly occurs in weft insertion members S and leave shed open reenters shed open when one second passes to weft insertion members S1 the time interval when one first passes.

Figure 11 illustrates the curve movement F and the F1 of above-mentioned traditional form motion.This motion begins from predetermined respectively shed open plane and ends at this predetermined shed open plane.In the shed open forming process of control pile yams, must prevent to twine cooperation and use.For this reason, curve movement F3 and F4 change by this way,, at least in the end position zone of this motion, before pile yams remains on its new shed open plane at last, carry out the overtravel H3 of finite time that is.Also can before the shed open conversion, carry out an overtravel H4.According to the situation of employed pile material, therefore pile yams can more effectively discharge from yarn pile

Figure 12 is illustrated in the curve movement F5 to F7 that different time passes the pile yams of shed open center in the area E and other pile warp.In this case, self-evident is also can adopt overtravel described in conjunction with Figure 11.

The Reference numeral tabulation

1 guide

The 11 weft yarns limit of beating up

2 slays

21,21 ' reed

3 jacquard weave heald zones

31 healds

311 harness eyes

32 healds

321 harness eyes

33 messenger wires

34 breast wheels

35 messenger wires

36 messenger wire reels

37 motors, actuated components

4 shed open limiters

41 tension metal silks

410 tension elements

42 tension metal silks

420 tension elements

43 pad yarn healds

44 harness eyes

45 harness eyes

46 springs

47 keep cross bar

48 resilient cross-bar

49 battens

51 wefting insertion zones (top)

52 wefting insertion zones (bottom)

6 fabrics

61 top layer base cloths

62 bottom base cloths,

(7) pile yams

The non-jacquard weave pile yams that is also referred to as dead pile yarn of 71 top cloth

The non-jacquard weave pile yams that is also referred to as dead pile yarn of 72 base fabrics

73 are selected for the new/plane pile yams that forms jacquard weave

730 are selected for the old pile yams that forms jacquard weave

73a is selected for the pile yams with shed open limiter that forms jacquard weave; From oneself

Oneself base cloth/plane

73b is selected for the pile yams with shed open limiter that forms jacquard weave; From it

Its base cloth

74 are selected for the new/plane pile yams that forms jacquard weave

740 are selected for the old pile yams that forms jacquard weave

74a is selected for the pile yams with shed open limiter that forms jacquard weave; From oneself

Oneself base cloth/plane

74b is selected for the pile yams with shed open limiter that forms jacquard weave; From it

Its base cloth

75 jacquard weave pile yams

76 jacquard weave pile yams

81,82 weft yarns

83,84 weft yarns

91 liners warp thread/tensioning warp thread---top cloth

92 liners warp thread/tensioning warp thread---base fabric

O1 upper outside shed open plane

O2 upper inner shed open plane

Shed open plane (top cloth) in the middle of the M1

Shed open plane (base fabric) in the middle of the M2

Shed open plane, the outside, U1 bottom

U2 lower inside shed open plane

The H stroke

The stroke of H1, H1 ' shortening

The stroke of the formation jacquard weave of H2, H2 ' shortening

H3, H3 ' overtravel

A, b residual quantity

E, E1 pass zone/shed open center

F, F1 ... the F7 curve movement

F5 ' ... F7 ' curve movement

First passes S wefting insertion---end---

Second passes S ' wefting insertion---beginning---

Claims (11)

1. be used for the method for the shed open formation of the jacquard weave pile warp on the double-faced pile loom, this loom has at least two and lays respectively between the adjacent shed open plane and a wefting insertion zone (51,52) that is positioned at above another;

Pile warp is distributed to a shed open plane (O, O1, O2, M, M1, M2, U, U1, U2) respectively via heald (31,32) before corresponding to each wefting insertion of jacquard weave and selected tissue, and shift to this shed open plane according to shed open opening action type at last, wherein said shed open plane (O, O1, O2, M, M1, M2, U, U1, U2) comprises shed open plane (O, O1, O2, U, U1, U2), the outside and middle shed open plane (M, M1, M2);

The winding of non-jacquard weave pile warp (71,72) is tied in a top layer base cloth (61) and/or the bottom base cloth (62), and jacquard weave pile warp (75,76) access node is in described top layer base cloth (61) or described bottom base cloth (62), and tensioning between described two base cloths (61,62) at last;

It is characterized in that:

Described heald (31,32) is to drive by the electric actuation parts (37) according to optional procedure control, and

Guide the stroke size of the heald (31,32) of described pile warp to change with the variation of the last access node in the base cloth in described two base cloths (61,62), the predetermined maximum height with described jacquard weave pile warp (75,76) is consistent respectively to make shed opening in the last end position zone of slay (2).

2. method according to claim 1, it is characterized in that end position of pile warp in middle shed open plane (M1, M2) zone and/or via positions are staggered into and make and can not surpass that two pile warps of distributing to a reed width are positioned at a plane regularly simultaneously or the while meets each other on a plane.

3. method according to claim 1 and 2, it is characterized in that, when as the non-gauze broche in the specific base cloth (61,62) or as dead pile yarn and the pile warp (71,72) of last access node when being directed into the shed open plane, the outside (O, U) of distributing to described specific base cloth (61,62), described pile warp (71,72) is always finished a stroke (H1, H1 ') that shortens and is entered specific shed open plane (O2, U2), the outside, inside respectively; And, the stroke of described shortening (H1, H1 ') terminates in the plane (73,74), this plane is from the last binding place of described specific base cloth (61,62), and outside tangent with the outside wefting insertion zone (51,52) that is provided with approximate equal height respectively.

4. method according to claim 1 and 2, it is characterized in that the end position of the pile warp in the shed open plane, the outside also is staggered into and makes and can not surpass that two pile warps of distributing to a reed width are positioned at a plane regularly simultaneously or the while meets each other on a plane.

5. method according to claim 1 and 2 is characterized in that, enters in the process on shed open plane, an outside in the shed open conversion, and the heald of guiding pile warp is finished a brief overtravel (H3, H4) in the zone on shed open plane, the described outside.

6. method according to claim 1 and 2 is characterized in that, guides the heald of the pile warp of a reed width to pass described middle shed open plane (M) with a time deviation.

7. method according to claim 1 is characterized in that, described heald (31,32) is by driving according to programme controlled electric actuation parts;

Described pile warp (73,74) is always guided a plane that enters in the shed open plane, the described outside (O1, U1) according to jacquard weave;

Described shed open

--be reduced one in the zone of two planes (73a, 74a) described slay (2) and the residual quantity (a, b) between the described heald (31,32)

--the last binding place of the base cloth of described two planes from described base cloth (61,62) begins, and it is tangent with the outside wefting insertion zone (51,52) that is provided with approximate equal height--to be top or bottom--respectively in the outside,

--stride across the width of shed open by upper and lower shed open limiter (4,41,42), and,

The end position of the pile warp in the middle of described in the zone on shed open plane and/or via positions are staggered into and make and can not surpass that two pile warps of distributing to a reed width are positioned at a plane regularly simultaneously or the while meets each other on a plane.

8. the device that is used for the shed open formation of the jacquard weave pile warp on the double-faced pile loom, this loom has at least two wefting insertion zones (51,52), these at least two wefting insertion zones arrange in a mode that is positioned at above another, and the zone of a base cloth in the base cloth (61,62) of double pile (6) is distributed in this wefting insertion zone respectively;

This loom also has the shed open that has heald (31,32) and forms element, and this heald has the harness eye (311,321) that is used to guide pile warp (7);

Described heald (31,32) can be before corresponding to each wefting insertion of jacquard weave and tissue by selecting element to distribute to a plane at least three shed open planes (O, M, U), and can shift to described shed open plane by driving element;

In order to the method for realization claim 1,

It is characterized in that:

Shed open plane, the described outside (O, U) is respectively by two differing heights positions (O1, O2 of described heald; U1, U2) limit;

The external height position (O1, U1) of described heald (31,32) is limited by a plane respectively,

--the last binding place of the base cloth of this plane from described base cloth (61,62) begins, and the wefting insertion zone (51,52) in the zone of another base cloth in the outside and described base cloth (62,61) is tangent;

The internal height position (O2, U2) of described heald (31,32) is limited by a plane (73,74) respectively, the last binding place of the base cloth of this plane from described base cloth (61,62) begins, and tangent with the outside wefting insertion zone (51,52) that is provided with approximate equal height in the outside respectively;

And the driving element that is used for heald (31,32) is separately controllable motor, this motor can according to distinct program by electronic control enter described internal height position (O2, U2) or enter described external height position (O1, U1).

9. device according to claim 8 is characterized in that, the harness eye at least of those healds on shed open plane (M1, M2) was provided in short transverse and interlocks in the middle of pile warp was positioned at.

10. the device that is used for the shed open formation of the jacquard weave pile warp on the double-faced pile loom, this loom has at least two wefting insertion zones (51,52), these at least two wefting insertion zones arrange in a mode that is positioned at above another, and the zone of a base cloth in the base cloth (61,62) of double pile (6) is distributed in this wefting insertion zone respectively;

This loom also has the shed open that has heald (31,32) and forms element, and this heald has the harness eye (311,321) that is used to guide pile warp (7); And has a slay (2) with a reed (21);

In order to the method for realization claim 1,

It is characterized in that:

Upper and lower shed open limiter (4,41,42) is arranged between the moving region of the reed (21) of described slay (2) and described heald (31,32); And

The shed open limit stop of described shed open limiter (4,41,42) is separately positioned on the plane in the plane (73b, 74b), the last binding place of the base cloth of described plane (73b, 74b) from described base cloth (61,62) begins, and tangent with approximate outside wefting insertion zone (51,52) with the equal height setting in the outside respectively.

11. device according to claim 10, it is characterized in that, described shed open limiter (4) comprises guide wires (41,42), this wire is parallel to fabric limit (11) orientation of beating up, and passes harness eye (44,45) on the pad yarn heald (43) that is fixed to not vertically moving tensioning and guiding spaced from each other.

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