CN101027438A - Method for gripping weft threads, gripping device and loom with at least one gripper device for weft threads - Google Patents
Method for gripping weft threads, gripping device and loom with at least one gripper device for weft threads Download PDFInfo
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- CN101027438A CN101027438A CNA2005800301173A CN200580030117A CN101027438A CN 101027438 A CN101027438 A CN 101027438A CN A2005800301173 A CNA2005800301173 A CN A2005800301173A CN 200580030117 A CN200580030117 A CN 200580030117A CN 101027438 A CN101027438 A CN 101027438A
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- parallel
- clamping device
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/40—Forming selvedges
- D03D47/48—Forming selvedges by inserting cut end of weft in next shed, e.g. by tucking, by blowing
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- Textile Engineering (AREA)
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- Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
Abstract
The present invention provides a gripper device (1) for weft threads (5), in which the gripping force can be changed during weaving according to a pattern for the material to be produced.
Description
The present invention relates to a kind of method that is used to clamp parallel in loom, described loom comprises that at least one is used to clamp parallel and exercisable clamping device in woven process, and relates to a kind of clamping device and a kind of loom that this clamping device is housed.
EP 0284766 A1 discloses a kind of clamping device that is used for the clamping parallel of loom.The clamping force of this clamping device is by the spring members decision, and its elastic force can change by adjusting device.The clamping force of clamping device can be eliminated by electric drive motor.This motor is also controlled parallel and is cut.Can clamp or not clamp parallel with the clamping force of regulation by disclosed clamping device.Practice shows, at woven some fabric, is not suitable for adopting such clamping device especially when the woven towel fabric, will insert with respect to the embedding limit of fabric by the selvedge device at the equatorial loose thread of towel cloth.
Task of the present invention is to implement the clamping of parallel, makes that it is applicable to any fabric in practice.
This task is finished by following measure in one approach, and promptly the clamping force of clamping device changes according at least one predetermined criteria in woven process.Preferably change according to the pattern of fabric.
The method according to this invention has following advantage, and promptly the clamping force of clamping device and fabric to be produced are suitable, because it is transformable in woven process.This method can be advantageously used in the fabric of woven any kind, and is particularly suitable for the towel cloth that the end of a thread of woven parallel has inserted with respect to fabric embedding limit.
A kind of preferred embodiment in, clamping force changes according to the weave pattern of fabric to be produced.In this case, a plurality of parallel on the cycle weaving pattern be decided to be the function of the angle position of main drive shaft, and consider as other pattern of the filling face pattern of a weaving pattern part and/or weavy grain and/or one or more.
According to preferred embodiment a kind of, the method according to this invention comprises that at least one the end of a thread of the parallel that will beat up is presented in the next shed open, and according to a kind of clamping force of pattern change clamping device, this variation can be regulated according to the inserting of at least one the end of a thread of the parallel that has beaten up.A plurality of parallel the end of a thread that a kind of like this method is advantageously utilised in the parallel that will beat up continuously are presented to down in one shed open jointly.By this measure, the end of a thread of parallel also can insert on the selvedge of fabric regularly.
According to a kind of design of the present invention, change clamping force according to a kind of pattern, be inserted into last root parallel in this group together according to the end of a thread of one group of parallel of this pattern and beat up in the shed open that the back forms.This design is specially adapted to the woven towel fabric.
In addition, according to the present invention, this task is finished by a kind of clamping device.Described clamping device comprises the mechanism that is used to change clamping force, and this mechanism can be operated according at least one criterion by control module in woven process.Preferably this operation is that the pattern according to fabric carries out.
Be provided for changing the mechanism of the pneumatic work of clamping force according to one preferred embodiment.Preferably this mechanism comprises compressed air cylinder and valve unit.Can change clamping pressure by changing compressed-air actuated pressure.
According to preferred embodiment a kind of, comprise the selvedge device simultaneously according to clamping device of the present invention so that the parallel that will beat up and in clamping device clamped the end of a thread be presented in following one shed open.Control this clamping device in this case, make the end of a thread of parallel can be presented to down best in one shed open.Clamping device major advantage according to the present invention is, uses when woven fabric according to clamping device of the present invention, and wherein, a plurality of the end of a thread of organizing parallel are presented to down in one shed open by the selvedge device together.
In addition, this task is also finished by a kind of loom, and this loom is assembling according to clamping device of the present invention.Advantageously this loom comprise be arranged on that weft yarn is cut and the selvedge of fabric to be produced between clamping device, and/or be arranged on that waste material is cut and the selvedge of fabric to be produced between clamping device.
In addition, a kind of preferred embodiment in, loom comprises the selvedge device, in order that with parallel in clamping device clamped the end of a thread be presented in following one shed open.Pneumatic selvedge device preferably is set.This selvedge device is arranged between fabric and the clamping device.Have a kind of pneumatic selvedge device be particularly suitable for according to clamping device co-operation of the present invention.
Stipulate in design of the present invention, clamping device be arranged in the zone that this clamping device clamps the parallel that does not beat up fully in this zone.In this case, reduce or cancel clamping force when parallel beats up fully, the parallel that does not beat up fully like this can easily be taken away together.Design and/or this clamping device is set in the scheme that substitutes makes this clamping device only catch the parallel that does not beat up fully.Clamping force reduces just enough so far forth when beating up the parallel that beats up fully, promptly take away the parallel of in advance having throwed a spear and do not beat up fully with this parallel, they leave clamping device in the process of beating up fully then, and are inserted into down in one shed open by a selvedge device.
From following explanation, obtain other advantage of the present invention and feature to the embodiment shown in the accompanying drawings.
Fig. 1 is the schematic diagram according to the part of loom of the present invention,
Fig. 2 illustrates according to clamping device of the present invention,
Fig. 3 is the partial enlarged drawing of the primary importance in woven cycle among Fig. 1,
Fig. 4 is another partial enlarged drawing with the corresponding woven cycle of Fig. 3,
Fig. 5 is the partial view of another location in the woven cycle of Fig. 3,
Fig. 6 to Fig. 8 is a partial view when producing fabric according to another weave pattern and diverse location similar woven cycle of Fig. 3,
Fig. 9 and Figure 10 are the detail view of clamping device similar with Fig. 2 in a kind of embodiment of modification.
Fig. 1 schematically illustrates and comprises two looms according to clamping device 1,2 of the present invention.This clamping device 1 is installed in fabric 3 and weft yarn is cut between 4, and this weft yarn is cut the parallel 5 and the yarn material storehouse 6 of will throw a spear and cut off.Another clamping device 2 is installed in fabric 3 and a waste material is cut between 7, and this waste material is cut the unnecessary loose thread 8 of the parallel 5 of will throw a spear and cut off.The end of a thread 9 of parallel 5 that exceeds the selvedge 10 of fabric 3 in the side of throwing a spear clamps by clamping device 1, is inserted into down in one shed open by a selvedge device 11 then.Another the end of a thread 12 of parallel 5 that exceeds the opposed selvedge 13 of fabric 3 clamps by clamping device 2, is inserted into down in one shed open by selvedge device 14 then.
From warp 16 directions, clamping device 1,2 and the liftoff setting of beat-up line 15 spacers, thus each clamping device 1,2 all can clamp the parallel 5 that does not beat up fully, the parallel 5 that does not just beat up on beat-up line 15.So-called in this case beat-up line 15 is interpreted as a line, parallel 5 is beaten up fully on fabric 3 knitting reed 17 on this line, promptly on so-called selvedge.Loom shown in Figure 1-for example is air-jet loom-comprise forming continuous shed open in disclosed mode with shed open formation mechanism with these warps by warp 16 that parallel 5 is put in these shed opens.Knit reed 17 and comprise special-shaped thin slice in disclosed mode, these special-shaped thin slices have the gap of U-shaped, to form the parallel guide channel.In addition, this loom also has at least one main burner 18, in order that parallel is throwed a spear in the shed open that is formed by warp 16.
In order to regulate in the way you want and to change clamping force, very different mechanisms is set certainly.For example can be electromagnetism, hydraulic pressure and mechanism machinery.The mechanism of machinery for example can comprise main drive gear, transmission mechanism, spring, cam and other mechanical component.It is favourable using pneumatic mechanism in air-jet loom, for example uses a kind of compressed air cylinder 22, and it can compress clamping part 30 and 31 mutually.Shown in compressed air cylinder 22 can apply effect simply, that is to say that it controls by compressed air by a direction (preferably by clamping direction), and reset by back-moving spring 34 at other direction.By correspondingly regulating and changing the effect that applies by compressed air cylinder 22 could be regulated and change to compressed-air actuated pressure between clamping part 30 and 31 clamping force.In a kind of embodiment of modification, be provided with the compressed air cylinder of double function, that is to say, can control at both direction by compressed air.
Adopted valve unit 23 in an embodiment, to obtain the desirable pressure of compressed air.But valve unit 23 is made of a kind of pressure regulator 32 and controllable No. 3/2 valve 33 of electricity of electric control in the embodiment shown.Can regulate the sky desirable pressure of air that contracts with pressure regulator 32, therefore regulate desirable clamping force.Primary importance compressed air at No. 3/2 valve 33 arrives compressed air cylinder 22, like this clamping part 30,31 is applied a kind of clamping force, there is not compressed air to arrive compressed air cylinder 22 in the another location of No. 3/2 valve 33, it has passed through 33 emptyings of No. 3/2 valve, thereby clamping part 30,31 is compressed the back-moving spring 34 of air cylinder 22 to be separated, like this, between clamping part 30,31, just do not apply clamping force.For the activity to clamping part 30 limits, block 35 is set, for example so this block is regulated, promptly this clamping part 30 can only move so far forth, promptly has 0.5 mm clearance between clamping part 30,31.
Preferably pressure regulator 32 is a kind of ratio pressure adjusters, and it continues the compressed air that guiding has pressure, this compressed air and the sizableness that is applied to the voltage on the pressure regulator 32.The signal of telecommunication that control module 21 will have suitable voltage flows to pressure regulator 32, in order that regulate compressed-air actuated desirable pressure by this way, and therefore regulate the desirable curve of the clamping force of desirable clamping force or the clamping device between clamping part 30 and 31 1.
In a kind of embodiment of modification, set a plurality of pressure regulators 32 and No. 3/2 valve 33 for this compressed air cylinder, wherein, these pressure regulators are transferred to the pressure of compressed-air actuated regulation respectively.If should change the compressed-air actuated pressure that is transported to compressed air cylinder 22, then control No. 3/2 relevant valve 33 respectively, this road valve is connected with the pressure regulator 32 that is adjusted to desirable pressure.
In a kind of embodiment of modification compressed air system is set, this compressed air system produces the compressed air with desired pressure.For example it also comprises air throttle in addition.
In described embodiment, the clamping part 30 of motion is fixed on the arm 43 by bolt 42, and this arm is bearing on the bearing 37 by hinge 36, and this bearing is fixed on the loom.The clamping part 30 of motion therefore can be around its hinge 36 revolutions of extending transverse to compressed air cylinder 22.Compressed air cylinder 22 is acting on arm 43 on the position between the position of rotary gemel 36 and clamping part 30 clamping parallels.Additionally on bearing 37 fixedly parallel cut 4.This parallel is cut 4 and is had hard-wired whole footpath reed 38 and the movable whole footpath reed of installing 39.The movable whole footpath reed of installing 39 is arranged on the driving shaft 41 of CD-ROM drive motor 41.Hard-wired clamping part 31 is arranged on the top and next door of hard-wired whole footpath reed 38 by bolt 44.In the embodiment shown, the top edge of the top edge of clamping part 31 and whole footpath reed 38 is located in one plane substantially.The axle that driving shaft 40 is parallel to broadwise and hinge 36 extends.
Clamping device 2 preferably designs the samely and constructs with clamping device 1.Waste material is cut 7 and is also cut 4 with parallel and design the samely, and and corresponding clamping part 30,31 and corresponding compressed air cylinder 22 be arranged on together on the corresponding bearing 37.
For example as shown in Figure 3, loom comprises selvedge device 11, and it is arranged on the next door at the edge 10 of fabric, between clamping device 1 and fabric 3.This selvedge device 11 has the blowning installation 27 that is arranged in the bearing, in order that the end of a thread 9 of the parallel 5 that will throw a spear is inserted in the established next shed open.Blowning installation 27 has nozzle 28, and this nozzle is arranged in the zone of groove of bearing, and this groove is used for parallel is led.In addition, it also has at least one nozzle 29 in bearing one side.Blowning installation 27 is connected with compressed air source by valve unit 25, for example is connected with compressed air source 24 in Fig. 2.Blowning installation 27 is arranged near the beat-up line 15.Valve unit 25 is by control module, and for example control module 21 was controlled by the suitable time interval, in order that the end of a thread 9 of parallel 5 is blown in following one shed open that forms after this parallel 5 is throwed a spear.Blowning installation 27 and valve unit 25 are parts of selvedge device 11, and they for example can design as described in patent application WO 01/86047 in the same manner.The selvedge device 14 (Fig. 1) set at the opposite side of fabric 3 for example designs with selvedge device 11 the samely.
Carry out work in the following manner according to these devices of Fig. 3 to 5.After parallel 5 pickings, this parallel moves along the direction of warp 16 from knitting reed 17.The end of a thread 9 of parallel 5 arrives between the clamping part 30,31 of clamping device 1 in this manner.The end of a thread 9 with this move-beating up-parallel 5 also is introduced in the selvedge device 11.Then this parallel 5 by weft yarn cut 4 and line material storehouse 6 cut off (Fig. 3).The end of a thread 9 of parallel 5 continues to be positioned among the clamping device 1 after cut off, and knits reed 17 and main burner 18 leaves beat-up line 15 motions by slay.Reduce or cancel the clamping force of clamping device 1 after cutting off, the blowning installation 27 of selvedge device 11 is blown into down the end of a thread 9 in one shed open (Fig. 4) then.Next parallel 5 throw a spear (Fig. 4) in this shed open.The end of a thread that has been blown into 9 of next the root parallel 5 and the parallel 5 of having throwed a spear is before this knitted reed 17 together and is taken away then, and beat up (Fig. 5).A kind of fabric 3 with the edge 26 that has inserted has so just appearred.With clamped to the end of a thread 12 of shown in Figure 5 and illustrated corresponding manner parallel by clamping device 2 by Fig. 3, cut 7 by waste material and cut off, be inserted into down in one shed open by selvedge device 14.
According to the present invention, clamping device 1 and/or 2 clamping force are according to a kind of criterion, particularly a kind of change in pattern of fabric 3, this pattern is to determine according to fabric to be produced 3.Can control the clamping force of clamping device 1 and/or 2 according to a weave pattern, and this weave pattern is relevant with the pattern of fabric 3 to be produced.Determine weave pattern according to the angle position of the main drive shaft of loom in one embodiment, exactly pass through a plurality of parallel cycles.This dependence is to be determined by filling face pattern, weavy grain or other pattern as a weaving pattern part.Below several schemes that change clamping force according to a kind of pattern during woven are described.
The present invention is specially adapted to the woven of towel cloth, and the end of a thread 9 and 12 of its equator 15 is inserted in this fabric.Normally one group of the end of a thread 9 and/or 12 of successively throwing a spear with the parallel that beats up is inserted into down in the shed open together in this kind fabric.
As shown in Figure 6, one group of parallel 5, for example two parallels are throwed a spear successively, and respectively with the position 19 of beat-up line 15 obvious spacing distances on beat up, this position for example is called pre-stop position 19.Clamping device 1 and unshowned clamping device 2 are so to be provided with, and promptly are in pre-stop position 19 when parallel 5, and when just being positioned at the position with beat-up line 15 spacing distances, these clamping devices can clamp the end of a thread 9 and 12 of parallel 5.If carry out wovenly to beat up in advance, then be positioned at the preceding position of beat-up line 15 and always do not carry out when woven when parallel 5 to beat up fully, clamping device 1 and 2 must can clamp parallel 5.Then as shown in Figure 7, last root parallel of one group is placed into, for example the 3rd parallel 5.The end of a thread of the parallel of this group then, for example the end of a thread of three parallels and the parallel of throwing a spear are at last beaten up at beat-up line 15 places together in the present embodiment, just once beat up completely.In the fabric of towel class, the end of a thread 9 of this group parallel is inserted into down in the shed open with 12 simultaneously as shown in Figure 8, just is inserted in the shed open that forms after beating up fully then.For the end of a thread 9 and 12 that can will organize parallel is inserted together by selvedge device 11 or 14, this end of a thread 9 and 12 must be exactly with respect to selvedge device 11 or 14 location before inserting.In this case, if the clamping force pattern according to the rules of clamping device 1 or 2 is transformable, then this is favourable, because the end of a thread 9 or 12 is cut off after parallel is throwed a spear, and should the end of a thread 9 or 12 be remained in the desirable position with the desirable clamping force of clamping device 1 or 2 after cutting off at every turn.
The end of a thread 9 and the bigger clamping force of 12 usefulness of beating up before beating up in advance of parallel 5 are clamped in clamping device 1 and 2, in order that they are clamped reliably.Back to back beat up fully in clamping device 1 and 2 clamping force be reduced, in order that the end of a thread 9 of the parallel of having throwed a spear before and 12 that can and throw a spear at last and the end of a thread 9 and 12 parallel that beat up fully can slide between the clamping part 30,31 of clamping device 1 and 2 together.If clamping force keeps too big when beating up fully, then there is a kind of like this danger, promptly can sustain damage, because these the end of a thread 9 and 12 will pass clamping device 1 and 2 at back to back the end of a thread 9 and 12 that has clamped when beating up fully.The clamping force of clamping device 1 and 2 is controlled according to a kind of pattern because be, wherein, clamping force is bigger when beating up in advance, clamping force is smaller when beating up fully, so produced a kind of like this advantage, promptly clamped in enough modes at the end of a thread of the back parallel that at every turn beats up in advance, they are without prejudice in beating up fully back to back then.Clamping force is for example according to the filling face pattern of fabric to be produced with at length according to napping pattern-also be called the towel pattern to control in this case.
Mention a kind of napping pattern in the aforementioned embodiment with three parallels.Can certainly select to have the napping pattern of other quantity parallel, for example a kind of napping pattern wherein beats up to three continuous parallels always and beats up in advance, then parallel is beaten up fully.In this case, clamping force is regulated greatly in three parallels are throwed a spear, and clamping force is regulated for a short time in the parallel of following is throwed a spear.The combination of different napping patterns is also arranged certainly.
On the section of determining, just in some parallels are throwed a spear, always carry out wovenly when being disclosed in woven towel, one section single-layer woven fabrics so just occurs to beat up fully.Weave the fabric of a segment standard in this case with a kind of terry cloth loom, this fabric also is called the fringe fabric.In this woven process clamping device 1 and/or 2 clamping force with when woven before beating up in advance employed clamping force little.Thus, just can easily pass clamping device 1 and 2 at equatorial the end of a thread 9 of fringe fabric and/or 12, these the end of a thread 9 and/or 12 just are without damage thus, and carefully and neatly done selvedge appears in fabric 3.The end of a thread 9 of each parallel 5 and/or 12 can individually be inserted in following one shed open respectively by selvedge device 11 or 14 in the fringe fabric.Stipulate that in a kind of embodiment of modification clamping device 1 and/or 2 keeps opening in the fringe fabric, just so control makes them not apply clamping force to the end of a thread 9 and/or 12 of parallel.
In one embodiment, determine the pattern of fabric to be produced according to the angle position of the main rotary shaft of loom by the control module 21 of loom.People wish to clamp with very big clamping force the end of a thread 9 and 12 of parallel in some fabric.The advantage of this way is that the parallel that adopts this method to clamp does not return bullet after cutting off, and can not cause the contraction of fabric.If parallel is fine regularly, warp just can be well around the parallel moving of having throwed a spear on the edge of fabric like this, thereby they have just formed good fabric edge.In order easily the end of a thread 9 and 12 of parallel 5 to be incorporated in clamping device 1 and/or 2, at first regulate the clamping force of clamping device 1 and/or 2 smaller.After introducing, improve clamping force more then.In this case, according to the present invention, according to the parallel cycle and particularly corresponding to the angle position of main drive shaft, perhaps the basis time graph relevant with the angle position of the main drive shaft of loom so changes clamping force, promptly be incorporated into clamping device 1 and/or 2 o'clock clamping forces are regulated smallerly, perhaps not apply power at the end of a thread 9 and/or 12 with parallel 5; And at least during cutting off parallel 5, perhaps after cutting off parallel, regulate clamping force bigger.When and if then these the end of a thread 9 and/or 12 of parallel should be inserted in the fabric edge, it is favourable before the end of a thread 9 and/or 12 is inserted into following one shed open the clamping force of clamping device 1 and/or 2 being reduced some a little, in order to these the end of a thread 9 and/or 12 can easily be released from clamping device 1 and/or 2 they are inserted into the shed opens that form together down by blowning installation 27 before.Clamping force mainly is that the angle position according to the main drive shaft of loom changes.
In another embodiment, clamping device 1 and/or 2 clamping force also are according to the parallel 5 of being inserted, and particularly change according to the type of parallel to be inserted.For example bigger for the thicker parallel of the thin selected clamping force of parallel.If parallel thick and that approach should obtain identical clamping force, the distance that normally is used between the clamping part of thick parallel is bigger than the distance between the clamping part that is used for thinner parallel.This adjusting is carried out according to the filling face pattern.In another embodiment, clamping force is regulated according to weavy grain and/or is changed.A kind ofly have the decorative pattern of the warp of as much if form, then clamping force for example is adjusted to smaller numerical value at upside and downside.If there is sizable difference in the quantity of the warp of upper side and downside on the contrary, then clamping force is selected and is regulated greatlyyer.
Certainly, the variation of clamping force is except depending on the filling face pattern, the angle position of main drive shaft, towel pattern, the fringe fabric, outside the combination of other parameter of fabric to be produced and the above-mentioned parameter of fabric to be produced, also for example depend on warp tension, weft tension, the height of naps of the kink of towel cloth, the angle position of main drive shaft, time graph perhaps depends on the result of the measurement of being carried out during woven.
If want woven certain fabric, for example stipulate desirable clamping force curve, and depend on that the angle position regulates the desirable curve of clamping force respectively according to the angle position of the main drive shaft of loom.If for example want woven a kind of towel cloth, this towel cloth has 20 bastings (Reihen), the basting that has four parallels in a kink that have three parallels in a kink, have three in a kink parallel and 20 bastings of a fringe that forms by flat fabric with ten parallels, then this loom is throwed a spear by 170 and is formed.Throw a spear for each in conjunction with the angle position of main drive shaft and to determine and store the curve of a clamping force.When producing fabric, be each single throwing a spear then, regulate its clamping force according to the affiliated angle position of the main shaft of loom.This measure just is called the woven pattern of fabric to be produced.
At the woven towel fabric, it is favourable particularly adopting the device according to Fig. 9 and Figure 10 when the towel cloth that the end of a thread of woven parallel has inserted.Clamping device 1 is installed on such position, makes the end of a thread 9 of this clamping device and the parallel 5 that beaten up of part, and just the parallel 5 with the pre-stop position 19 that beats up always coacts.In addition, clamping device 1 so is provided with, and promptly it applies effect for the parallel that beats up fully, just the parallel on the beat-up line 15 of beating up is not applied effect.The clamping part 30 and 31 of clamping device 1 is so to be provided with and to construct, i.e. not acting in conjunction in their zones before beat-up line 15, and just their unreal clamps tightly act on.For this reason, clamping device 1 is provided with a groove 45 in the zone of clamping part 30 and 31.This embodiment for example can make two of (Fig. 9) parallel 5 clampings of the end of a thread 9 of 19 of beating up in advance of having beaten up.Then, these two the end of a thread 9 take in the zone of groove 45 by knitting reed 17 as shown in figure 10 always when the 3rd parallel of inserting subsequently beats up fully.
The clamping force of beating up in advance 19 o'clock is for example compared when beating up fully, and the clamping force between the clamping part 30,31 is reduced.Three of parallel 5 the end of a thread 9 were driven when the parallel of in the end inserting beat up fully, and arrived the zone of groove 45.They are no longer clamped then, and can be presented to down together in one shed open by selvedge device 11 then.Because the end of a thread of parallel 59 is original just no longer clamped, so when implementing to insert process, do not require the clamping force that reduces clamping device 1 by the selvedge device.Certainly the groove 45 among Fig. 9 and 10 also can use in clamping device 2.
If selvedge device 11 and/or 14 are not set, then clamping device 1 and 2 and affiliated parallel cut 4 and waste material cut 7 can be more close fabric 3 be provided with.
Can also alternate manner and method determine the parameter of fabric to be produced.These parameters needn't be determined by above-mentioned weave pattern.In addition, weave pattern also can comprise other parameter.In most of the cases weave pattern is to determine according to parallel to be throwed a spear.Yet weave pattern also can be according to the continuous position of warp, and perhaps another kind of mode and method are determined.
Usually the variation of clamping force is closely to link to each other with 31 to each other actual relative motions with clamping part 30.Yet be a kind of flexible parallel that do not have substantially when what clamp between clamping part 30 and 31 for example, the variation of clamping force not necessarily can cause clamping part 30,31 relative motion to each other.When clamp be whippy parallel the time, when changing clamping force, just can produce relative motion between clamping device 1 or 2 the clamping part 30 and 31.
Certainly, the end of a thread 9 of parallel 5 is presented to down the not only available pneumatic selvedge device of shed open with 12 to carry out, and can adopt the selvedge device of other machinery, and for example the disclosed selvedge device of EP 322014 A carries out.
The present invention also is not limited to the application in air-jet loom.The present invention can be used in each loom, for example is used in rapier loom, gripper shuttle loom, and water jet looms, projectile loom is in the loom of Multiphase looms and woven rotor (Webrotor) and other type.
According to device of the present invention, those embodiments that are not limited to only illustrate as an example according to loom of the present invention and the method according to this invention.But in the framework of the principle of claim, under the situation of not leaving protection domain, can carry out modification and/or combination.
Claims (18)
1. in loom, be used to clamp the method for parallel (5), described loom comprises that at least one is used for the exercisable clamping device of parallel (5) (1,2) in woven process, it is characterized in that the clamping force of clamping device in woven process (1,2) changes according at least one predetermined criteria.
2. in accordance with the method for claim 1, it is characterized in that the clamping force of described clamping device (1,2) is according to the change in pattern of fabric (3).
3. according to the method for claim 1 or 2, it is characterized in that described clamping force changes according to the weave pattern of fabric to be produced.
4. according to each described method in the claim 1 to 3, it is characterized in that, described weave pattern be a plurality of weft yarn on the cycle function as the angle position of the main drive shaft of loom determine, and consider as other pattern of the filling face pattern of a weaving pattern part and/or weavy grain and/or one or more.
5. according to each described method in the claim 1 to 4, it is characterized in that the variation of described clamping force is finished according to a kind of pattern, according to this pattern, at least one the end of a thread of the parallel that has beaten up (5) (9,12) has been inserted into down in one shed open.
6. according to each described method in the claim 1 to 5, it is characterized in that, the variation of described clamping force is finished according to a kind of pattern, and according to this pattern, the end of a thread of one group of parallel (5) (9,12) is inserted in the shed open that forms after last parallel (5) of this group beats up together.
7. in accordance with the method for claim 6, it is characterized in that, reduce clamping force or cancellation clamping force when beating up at last root parallel (5) of this group.
8. the clamping device (1,2) that is used for the parallel (5) of loom, in woven process, can operate this clamping device by control module (21), it is characterized in that, be provided for changing the mechanism (20) of clamping force, in woven process, can operate this mechanism according at least one criterion by control module (21).
9. according to the described clamping device of claim 8, it is characterized in that the mechanism (20) that is used to change clamping force can be according to the pattern operation of fabric (3).
10. according to claim 8 or 9 described clamping devices, it is characterized in that, described control module (21) is integrated in the controlling organization of loom.
11., it is characterized in that the criterion that described control module (21) is used for the mechanism (20) of operation change clamping force is to set according to the weaving pattern of fabric to be produced (3) according to each described clamping device in the claim 8 to 10.
12. according to each described clamping device in the claim 8 to 11, it is characterized in that, in order to change the mechanism (20) that clamping force is provided with pneumatic work.
13., it is characterized in that described clamping device and selvedge device (11, the 14) combination of preferably controlling according to each described clamping device in the claim 8 to 12 by control module (21).
14. loom is characterized in that, this loom is furnished with according to each described clamping device (1,2) in the claim 8 to 13.
15., it is characterized in that described clamping device (1,2) is arranged on weft yarn and cuts between the selvedge of (4) and fabric (3) to be produced according to the described loom of claim 14, and/or be arranged on waste material and cut between the selvedge of (7) and fabric (3) to be produced.
16. according to claim 14 or 15 described looms, it is characterized in that, preferred pneumatic selvedge device (11,14) be set between one or two selvedges of fabric to be produced (3) and clamping device (1,2).
17., it is characterized in that described clamping device (1,2) is arranged in the zone according to each described loom in the claim 14 to 16, this clamping device clamps the parallel (5) that does not beat up fully in this zone.
18., it is characterized in that according to each described loom in the claim 14 to 17, constitute and/or described clamping device (1,2) is set, make it not clamp the parallel (5) that beats up fully.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE2004/0438A BE1016183A3 (en) | 2004-09-08 | 2004-09-08 | METHOD AND APPARATUS FOR CLIPPING AN IMPRESSION THREAD IN A WEAVING MACHINE. |
| BE2004/0438 | 2004-09-08 | ||
| PCT/EP2005/009642 WO2006027240A1 (en) | 2004-09-08 | 2005-09-08 | Method for gripping weft threads gripping device and loom with at least one gripper device for weft threads |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101027438A true CN101027438A (en) | 2007-08-29 |
| CN101027438B CN101027438B (en) | 2012-11-14 |
Family
ID=34973968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800301173A Expired - Fee Related CN101027438B (en) | 2004-09-08 | 2005-09-08 | Method for gripping weft threads, gripping device and loom with at least one gripper device for weft threads |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1786963B1 (en) |
| CN (1) | CN101027438B (en) |
| BE (1) | BE1016183A3 (en) |
| WO (1) | WO2006027240A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108349681A (en) * | 2015-10-30 | 2018-07-31 | 罗伊有限公司 | Guide type electromagnetic brake for controlling the tension of weft yarn in loom |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1022146B1 (en) * | 2014-06-13 | 2016-02-19 | Picanol | SELF-EDUCATION DEVICE FOR A WRAKING THREAD |
| IT201600122838A1 (en) * | 2016-12-02 | 2018-06-02 | Itema Spa | Leverismo of control for cimoss to head of mobile work head for textile machines |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE791648A (en) * | 1971-11-26 | 1973-03-16 | Lebocey Industrie | DEVICE FOR PINCHING AND SEPARATING A WEFT THREAD FOR SHUTTLE Looms |
| US4078586A (en) * | 1976-08-26 | 1978-03-14 | Adolph Saurer Limited | Method and apparatus for producing a selvage |
| BE1000369A4 (en) * | 1987-03-09 | 1988-11-08 | Picanol Nv | Method for ordering a cutting device for impact on wires looms and cutting device used for this purpose. |
| BE1001310A3 (en) * | 1987-12-22 | 1989-09-19 | Picanol Nv | DEVICE FOR FORMING A selvedge TO A TISSUE IN LOOMS. |
| JPH01250446A (en) * | 1988-03-31 | 1989-10-05 | Nissan Motor Co Ltd | Method for tuck-in selvage of pile fabric |
| DE58908655D1 (en) * | 1988-08-25 | 1995-01-05 | Rueti Ag Maschf | Method for avoiding tension peaks of a weft thread during weft insertion during the braking process. |
| US5476122A (en) * | 1993-03-05 | 1995-12-19 | Lindauer Dornier Gesellschaft Mbh | Weft thread brake responsive to yarn characteristics in a loom |
| WO1997013901A1 (en) * | 1995-10-10 | 1997-04-17 | Textilma Ag | Mechanical loom with pneumatic weft thread insertion |
| JP3985880B2 (en) | 1998-03-11 | 2007-10-03 | 津田駒工業株式会社 | Weft gripping device |
| SE9900665D0 (en) * | 1999-02-23 | 1999-02-23 | Iro Patent Ag | Device and methods for varying brake current running fadens |
| FR2792922B1 (en) | 1999-04-28 | 2001-06-01 | Vetrotex France Sa | MANUFACTURING METHOD WITH DETECTION OF BROKEN YARN |
| JP2001234451A (en) | 2000-02-22 | 2001-08-31 | Tsudakoma Corp | Method and apparatus for driving selvedge forming machine in loom |
| BE1013428A3 (en) * | 2000-05-08 | 2002-01-15 | Picanol Nv | EDGE DEVICE FOR WEAVING MACHINES. |
| SE0002813D0 (en) * | 2000-08-02 | 2000-08-02 | Iro Patent Ag | Shut-off braking brake and drive control of Shut-off entries in one web engine |
| JP4132793B2 (en) * | 2001-11-22 | 2008-08-13 | 津田駒工業株式会社 | Tack-in ear formation method for woven fabric |
-
2004
- 2004-09-08 BE BE2004/0438A patent/BE1016183A3/en not_active IP Right Cessation
-
2005
- 2005-09-08 CN CN2005800301173A patent/CN101027438B/en not_active Expired - Fee Related
- 2005-09-08 WO PCT/EP2005/009642 patent/WO2006027240A1/en active Application Filing
- 2005-09-08 EP EP05778062A patent/EP1786963B1/en not_active Not-in-force
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108349681A (en) * | 2015-10-30 | 2018-07-31 | 罗伊有限公司 | Guide type electromagnetic brake for controlling the tension of weft yarn in loom |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006027240A1 (en) | 2006-03-16 |
| EP1786963A1 (en) | 2007-05-23 |
| CN101027438B (en) | 2012-11-14 |
| BE1016183A3 (en) | 2006-04-04 |
| EP1786963B1 (en) | 2013-01-16 |
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