CN1845866A - Weft thread length measuring device - Google Patents
Weft thread length measuring device Download PDFInfo
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- CN1845866A CN1845866A CNA200480024995XA CN200480024995A CN1845866A CN 1845866 A CN1845866 A CN 1845866A CN A200480024995X A CNA200480024995X A CN A200480024995XA CN 200480024995 A CN200480024995 A CN 200480024995A CN 1845866 A CN1845866 A CN 1845866A
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- 238000004804 winding Methods 0.000 claims abstract description 16
- 230000002045 lasting effect Effects 0.000 claims description 25
- 238000012797 qualification Methods 0.000 claims description 9
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- 230000008859 change Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
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- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 29
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 238000009941 weaving Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005173 gliding motility Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 230000008719 thickening Effects 0.000 description 1
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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
- D03D47/36—Measuring and cutting the weft
- D03D47/361—Drum-type weft feeding devices
- D03D47/364—Yarn braking means acting on the drum
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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
- D03D47/36—Measuring and cutting the weft
- D03D47/361—Drum-type weft feeding devices
- D03D47/362—Drum-type weft feeding devices with yarn retaining devices, e.g. stopping pins
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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
- D03D47/36—Measuring and cutting the weft
- D03D47/361—Drum-type weft feeding devices
- D03D47/362—Drum-type weft feeding devices with yarn retaining devices, e.g. stopping pins
- D03D47/363—Construction or control of the yarn retaining devices
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Abstract
The invention relates to a measuring feedwheel unit (M) comprising a stationary storage body in the form of a bar cage (K) having substantially axial bars (S, S') that are spaced apart in the peripheral direction, at least one stopping device, externally associated with the bar cage (K) and having an adjustable stopper element (A), and a winding-up element (W) that can be rotated relative to the bar cage (K). Every bar defines a substantially axial yarn carrying surface (4, 4') for the windings of a yarn (Y). For at least two approximately diametrically opposite bars (S) one braking element (P) pointing with a braking surface (3) from the exterior towards the yarn carrying surface (4, 4') is provided in a permanent brake position. The braking surface (3) gradually approximates the yarn carrying surface in the yarn take-off direction (D) to a distance which is between zero and a value smaller than the width of every winding.
Description
Technical field
The present invention relates to a kind of as claim 1 Weft thread length measuring device as described in the preamble (measuring feeding unit).
Background technology
In a kind of known Weft thread length measuring device (WO 98/37265), one is used for being arranged in braking element the place ahead with the coefficient brake scotch of storage member (storage body) (brake shoe) with coiling (winding) direction.Brake scotch can be adjusted between braking position and passive position.The purposes of brake scotch be temporarily to be stabilized in unwinding (withdrawal) direction last coiling and subsequently by the thread segment between the braking element in the shift-in braking position.Brake scotch moves forward and backward, and enters the motion association of braking position with braking element.
Summary of the invention
The object of the present invention is to provide one as Weft thread length measuring device, carry out better yarn control after this device reaches during unwinding yarn in the disclosed type of the beginning part.Part purpose of the present invention is to improve yarn control in Weft thread length measuring device, wherein in Weft thread length measuring device, by winding the line from excellent cage (rod cage) towards basic axially extrapolated batching (winding-on) action, several coilings are discharged fully, so that unwinding from excellent cage with very little external diameter, the described coiling that is pushed out keeps discharge a moment then, promptly hover, and the coiling that discharges is inserted into before flat contracting (collapse) subsequently and manipulates without any internal mechanical.
This purpose realizes by the feature of claim 1.
Although coiling of each yarn or the coiling of several yarns simultaneously by as transport the brake resistance that produces between surface and the brake area at yarn and temporarily loaded load, the braking element that is in lasting braking position with respect to rod astoundingly wind the line on the rod forward during and/or at unspooling operation yarn geometric configuration or insertion speed are not had any negative effect.In some cases, when the yarn coiling was distinguished by braking, their can be closely close mutually, is in contact with one another in some cases or even closely, and highly organized tubular configuration fluffs diffusing on the excellent cage yet can not make.This is assumed that it is very all results of even dauer effect of braking element.In addition, a good effect can take place, i.e. most of at least yarn on the braking element control arm is increased in to a great extent and is dissipated by friction force so that the tension force of an orderly configuration and generation is kept in coiling.The tension force increase derives from the tensammetric peak of a moment, the yarn after this tensammetric peak is braked element and is stopped by insertion process slow down strongly produce.The tension force increase is easy to affact backward the coiling on the storage member, and causes disorder or even yarn breakage there.Braking element or only contact yarn transmit the surface or even had resiliently to oppress and transmitted on the surface at yarn, perhaps even be positioned at apart from yarn and transmit a surperficial preset distance place, wherein this distance is littler than the thickness that yarn winds the line.Because this layout, each coiling all will be exposed in the predetermined braking effect.The storage member that has unusual minor diameter at Weft thread length measuring device with and operating principle insert operation when all from rod, axially discharging several coilings for each with tubular configuration, the effect of these combinations is especially favourable.In this case, the influence of braking element is especially favourable, because many coilings have to move with each axle speed height that inserts under the braking element of operating owing to the storage member diameter is very little.Associated is, for the coiling that tubular configuration discharges particularly importantly, these coilings keep stable and orderly tubular configuration, operate even just insert.In inserting operation, yarn directly inwardly pulls to the axle of tubular configuration subsequently from the most preceding coiling at unreeling direction, because the coiling that discharges does not form the machinery of inner air ring (balloon) and hovers, so avoided to a great extent otherwise can form with the disadvantageous air ring that uncertain form postpones insertion speed.
Aptly, arrange at least two braking elements symmetrically.This has guaranteed the axle with respect to excellent cage, and coiling can not produce the direction skew.
Aptly, braking element with its with respect to the axle of excellent cage substantially radially the mode of surrender (yield) form or arrange.This retractility (flexibility) has obtained quantitative good braking effect, and during this period, braking element can be surrendered.If for example the thickening of yarn must pass through, this also is very important.In addition, the elastic extension of braking element makes braking element turn back to predetermined lasting braking position at once, so that all coilings of passing through can both receive essentially identical braking effect.
Aptly, braking element and yarn transmit the surface and unite a taper yarn inlet gap and yarn outlet gap that separates gradually that qualification has a braking district therebetween, along this braking district, yarn transmits the surface and brake area extends at least to a great extent in parallel to each other and on unreeling direction.By this structure, braking effect increases to maxim gradually, for example keeps then momently in maxim, reduces gradually then.This dynamic condition is very important for good yarn control.Under the situation that tensammetric peak worked with maximum braking effect after the unwinding side direction in the braking phase, this tensammetric peak will be braked effect and dissipate at least to a great extent, and can not cause the disorder in the coiling that is arranged in upstream, braking district, or cause yarn breakage.
In a suitable embodiment, braking element is arranged in the end portion position adjacent that yarn transmits the surface, wherein yarn transmits the unwinding end that surperficial end portion is positioned at excellent cage, so that coiling attracts relative to one another in the direct upstream of unwinding, wind the line and brake yarn simultaneously in a controlled manner.
In an important embodiment, the circumferential width that yarn transmits surface or braking district reduces at unreeling direction, makes braking effect reduce equally, and the specific floor area contact pressure then increases.In theory, braking is distinguished even can is linear.Yet, in order to handle yarn as far as possible gently, the suitable braking district that has finite width on the circumferencial direction that is formed in.
In a suitable embodiment, braking element is made of a drg (skid), and this drg axle direction substantially radially at excellent relatively cage in an external stability guide groove is guided movably, and is using a spring-loaded on the direction of rod.The frictional behavior of brake area and spring force produce predetermined quantitative good braking effect.
Aptly, the stroke of the permission of the drg in the guide groove (stroke) terminal position is limited by a drg, transmits the surface or even maintains apart from yarn and transmit the predetermined last braking position of distance in surface one with a predetermined contact pressure contact yarn so that lasting braking position is a brake area.
Aptly, be fit to different yarn qualities, can regulate the spring force that brake area works whereby in order to make each braking effect.
In a suitable embodiment, braking element is disposed in more than two lasting braking positions to maximum all excellent numbers.The braking effect of one specific symmetrical distribution can realize under the help of four braking elements that depart from about 90 ° of arrangements mutually separately.
Insert the tensammetric peak that operation stops generation in order suitably to dissolve at least to a great extent, and avoid tensammetric peak to affact coiling on the excellent cage backward, in the rod of selecting, provide a linking opening that is used for braking element respectively, and to identical rod or a braking element is provided in the lasting braking position in direction of winding before the linking opening of a rod of direction of winding fwd.Because this arrangement, the optimum short-range yarn that first braking effect is had apart from braking element receives,, this braking element stops this unwinding yarn that inserts operation simultaneously.
In another optional embodiment, each braking element is made of a spring tongue piece, wherein this spring tongue piece be fixed on braking district before or after on the unreeling direction of face.Spring tongue piece only needs installing space in a small amount and can be designed to produce the braking effect that can accurately estimate.
In another embodiment, braking element is arranged in the ring body (ringbody) of around rods cage.We can say that ring body defines the common guide groove that is used for all braking elements so and hovers.
In another suitable embodiment, a braking element and each rod are got in touch.At least can provide invalidation means (de-activating device) to some of braking element.By using these devices, for example be used to adapt to different yarn qualities, number actual activity and the lasting braking element of braking can be selected as required.To be fixed on the braking element of its passive position to any brake action of yarn coiling generation.
Since only have at a Weft thread length measuring device under the situation of a single brake equipment, the effective diameter of rod cage is necessary, as routine, be variable, purpose is to adapt to each actual woven width, the guide groove of braking element or braking element also can be in radiai adjustment simultaneously, and purpose is when the diameter of above-mentioned excellent cage changes in advance, allows to regulate required braking effect once more.
Especially a suitable embodiment is characterised in that: the external diameter of excellent cage is approximately between the 20mm to 60mm, braking element provides at a rod place of selecting, wherein braking element is transmitted in the stop position of an into qualification by yarn coiling rod along this selection in unreeling direction uniquely, and each the lasting braking position place at least two rods provides an independent braking element, and rod wherein departs from about 90 ° with respect to the rod of selecting in circumferencial direction.In order to be implemented in the purpose that the last at least braking element of operating in the direction of winding before the braking element can consume required energy and will yarn keep the yarn coiling with controlled form during the tensammetric peak that inserts the generation after operation stops, the Yarn braking district of this braking element should at least approximately be arranged in a straight line with the stop position that limits at circumferencial direction.Aptly, the rod of selection is that it should be in the minimum rod of excellent cage of basic horizontal one.In this case, at least two antipodal other braking elements are arranged in about same horizontal surface.
Description of drawings
Embodiment of the present invention will be explained in conjunction with the accompanying drawings.In the accompanying drawings:
Fig. 1 is the perspective schematic view with Weft thread length measuring device of the braking element that is arranged in lasting braking position,
Fig. 2 is the birds-eye view with respect to Fig. 1 that amplifies, and wherein part is a longitudinal section view,
Fig. 3 is the schematic anterior component with respect to Fig. 1 and Fig. 2,
Fig. 4 is the lateral plan of the details shown in Fig. 3, and
Fig. 5 is the lateral plan of another embodiment.
The specific embodiment
Although in Fig. 1 to Fig. 4, show the CONSTRUCTED SPECIFICATION of the Weft thread length measuring device M of a certain particular type, yet core of the present invention comprises at least two braking element P that place lasting braking position, the Weft thread length measuring device that can also be used for other type, the Weft thread length measuring device of described other type are provided with a kind of static storage member that is used for storing at once the coiling of yarns Y.It is excellent cage and can have other geometric configuration that this storage member not necessarily needs.
This type of Weft thread length measuring device is generally used in the air-jet loom, and aerojet loom especially is to store weft yarn (weft) thread material at once and to measure the length of throwing a spear (picklength) that each inserts operation.In order to measure the length of throwing a spear, this device is furnished with the brake equipment that contains the brake component A that drives movably.
Weft thread length measuring device M shown in Fig. 1 to Fig. 4 and other known Weft thread length measuring device difference are the storage member of a very small diameter, this storage member form an excellent cage K (diameter such as for 20mm between the 60mm, preferably at about 30mm between the 45mm), with be that is used to stop the brake component A that each inserts operation or throws a spear, wherein brake component ad hoc moves to the stop position Q of regulation by the coiling of yarns Y, and is to be used to start the controlled weft folder K that each inserts operation or throws a spear.In addition, in some cases, in the excellent cage K of Fig. 1, provide axial, suitable tapered guide axle (arbour) B.This Weft thread length measuring device M is according to specific principle of work and power operation, so that by utilization batch element W with respect to the result of the coiling campaign of fixing excellent cage K with to the established coiling of front transfer, before inserting operation, several tight adjacent coilings discharge from storage member with tubular configuration, the coiling of Shi Fanging subsequently in the unwinding action of inserting operation, left behind (pull off), do not hover and break away from flat pattern and internal mechanical takes place, and further enter the situation in the weaving loom subsequently inwardly towards tubular axis.This principle of work and power has prevented gas figure effect (ballooning effect), because this reason, and allow undelayed high insertion speed (being disclosed among introducing WO 02/33157 A herein).
In Fig. 1 and Fig. 2, Weft thread length measuring device M comprises fixing excellent cage K, and this rod cage K is by spaced apart axially extended substantially at circumferencial direction, the excellent S that freely stops in the case, S ' composition.For example, excellent cage K is supported on the drive spindle that batches element W rotationally, and hinders,, rotate in the same way with axle drive shaft as known per se with magnet.Batch element W for example by direction of winding 1 rotation.
One does not have the brake equipment of demonstration in detail and the excellent S ' of a selection to work (Fig. 3 and Fig. 4), and wherein the excellent S ' of Xuan Zeing is arranged in the lower position of Fig. 1.Brake equipment has can draw and recoverable brake component A.Fixedly guide groove (guidance) F all is provided in the both sides of excellent cage K.Each guide groove comprises at least one braking element P, and this braking element P remains on and a lasting braking position that excellent S is relevant.In the embodiment shown in, two excellent S are provided with two braking element P, and described excellent S is opposite fully with respect to the X-axis of excellent cage.Plural braking element P can be provided in addition, and this braking element P is distributed in circumferencial direction aptly regularly.The as many braking element P of S ' in some cases, even can be provided and excellent S.Yet good yarn control still can be only by providing single braking element P to reach.
Control yarn folder C between clamped position and releasing position is so that when the releasing position, the unwinding yarn unhinderedly leaves, but stops at clamped position.When brake component A is connected, stop inserting operation by the further unwinding that hinders yarns Y.The insertion operation discharges the yarns Y that remains to this moment by yarn folder C and begins.
Fig. 2 example each excellent S limit a yarn and transmit surface 4, this yarn transmits the surface and stops at terminal 5 places of unwinding, and has an inclined-plane in the place of beginning.Yarn transmits the upside that surface 4 is positioned at excellent S, and wherein this upside is away from the X-axis of excellent cage.Yarn transmits surface 4 and extends axially substantially.
Yarn transmits surface 4 and can extend in parallel with the X-axis of excellent cage, or can have an inclined-plane that summary is downward in unreeling direction D.In order to allow that excellent cage diameter is adjusted to different weaving width, excellent S can radially adjust on the direction of double-head arrow 13 aptly, to reach change is transmitted surface 4 girths that limit by yarn purpose.
Show that in Fig. 1 two braking element P of its actual locus are arranged at the lasting braking position of excellent relatively S.In Fig. 2, each braking element P is a kind of drg 2, and this drg 2 is directed in guide groove F, so that carry out making progress in the basic footpath of the X-axis of excellent cage gliding motility.Drg 2 limits a brake area 3, it has selected geometric configuration in the cross-sectional plane of Fig. 2, so that gradually at the inlet gap 6 that unreeling direction D converges, the braking district Z of continuity, and the outlet gap 7 that separates gradually behind the braking district is defined at brake area 3 and yarn transmission surface 4.Brake area 3 only transmits the end portion synergy on surface with the yarn near unwinding end 5, transmit the end portion 4 ' synergy on surface aptly with yarn, in some cases, the remainder that the end portion 4 on this yarn transmission surface ' the more close yarn that batches element W transmits surface 4 than being positioned on the X-direction of excellent cage has more inclined downward.
The spring 8 that advances braking element 2 is aptly by 9 prestrains of spring fixer, and this spring fixer 9 can be in arrow 10 direction adjusted, to change the spring-load of braking element.
In addition, can provide a kind of banking pin 11 (Fig. 2), as the stroke of the braking element P among the restriction guide groove F.The position of banking pin 11 can be regulated 12.In the lasting braking position of braking element P, brake area 3 is fixed on branch and takes leave of yarn and transmit surface 4 or 4 ' a distance, and wherein this distance is zero extremely between the thickness less than the yarns Y of each processing.That is to say, brake area 3 can the direct contact yarn transmit surface 4 or 4 ', even can under minor load, press to yarn and transmit the surface, or can be under minor load transmit surface 4 or 4 ' keep a little intermediate distance with yarn.This intermediate distance is littler than the thickness of yarns Y so that yarn transmit surface 4 or 4 ' on the coiling of the yarns Y that forms by the rotation of batching element W axially by braking district Z the time, can be subjected to braking effect.
Yarn transmits surface 4 or 4 ' substantially and axially extends, and each all has a limited width at circumferencial direction, or even can be almost linear, or can be tapered, so that its width reduces in unreeling direction W at unreeling direction.In a circumferential direction, the width of brake area 3 meet to a great extent yarn transmit surface 4 or 4 ' width.Yet, brake area 3 even can to transmit the surface than yarn wideer or narrower.For example, brake area 3 camber bendings in Fig. 2 so that at least the yarn among Fig. 2 or 3 the braking district Z transmit surface 4 ' and brake area 3 extend substantially parallel mutually.As shown in Figure 3, brake area 3 can-in circumferencial direction, see-turn round backward in outside, braking district.
Function
The continuous winding of yarns Y is on the excellent cage K.Withdrawal brake component A.Yarn folder C is in clamped position and anchor yarns tightly, and this yarn extends to the insertion device of the weaving loom that does not show from coiling.Brake component A is retracted to outside the coiling by a propulsive effort that does not show, and by being retreated on the direction of batching element W by another propulsive effort, so that it is on the ready position that can be connected once more.Batch element W and on direction of winding 1, rotate, and on excellent cage K, form new coiling continuously.According to each coiling number that inserts operation or throw a spear and discharge, when batching element W also in rotation, brake component extends before a coiling that has just formed, and for example enters an excellent S ' who selects.The brake component of Xian Jieing is wound the line from the predetermined stop position Q that is sent on unreeling direction D among Fig. 4 then.In the coiling process, coiling was discharged continuously in surpassing in the unreeling direction of unwinding end 5 of excellent S, and this release coiling constitutes tubular configuration then, and we can say, keeps discharge a moment.The diameter of axis of guide B is than excellent S, little many of the external diameter of S ' qualification.Yarn folder C is adjusted to the releasing position so that not the insertion device of the loom of Xian Shiing can be from the coiling of release the unwinding yarn.Owing to do not exist the internal mechanical of the coiling of release to hover, the unwinding yarn in the unwinding side from first coiling directly upcountry substantially towards the bearing of trend operation of the X-axis of excellent cage, and can support by axis of guide B subsequently, thereby can not form knot.Because yarn can be booked in brake component A position and be fixing, brake component A one reaches the stop position Q of qualification, inserts operation or throw a spear just to be terminated.Subsequently, for anchor yarns firmly, yarn folder C is adjusted to clamped position once more, and brake component A will withdraw subsequently and returning on the direction of batching element W.Simultaneously, new coiling is released once more.
When coiling is passed through, be positioned at lasting braking position and for example, at the symmetrically arranged braking element P of the excellent relatively cage X-axis of circumference of excellent cage each coiling (Fig. 3 and Fig. 4) of yarns Y is played a braking effect.Braking district S is arranged in a straight line with the stop position Q of the qualification of brake component A substantially at least at circumferencial direction; so that whip seemingly stretches effect and is dissipated in braking district S to a great extent; therefore other coiling of upstream can be with from its orderly coiling configuration; wherein stretch effect like the whip and can take place when operation has stopped inserting usually, and will cause a violent yarn tension peak and will affact backward in the coiling on the excellent cage K.For stretching the decay of effect like this whip, place the first braking element P of the direction of winding 1 (direction of unclamping with unspooling operation is consistent) before the brake component A especially to play an important role.
This will explain once more by Fig. 3 and Fig. 4.Fig. 3 has shown the excellent S ' that selects, and this rod S ' and brake component A one work, and is the nethermost rod among Fig. 1 for example.Rod S ' have yarn transmit surface 4 or 4 ', and the linking opening 15 that is used for brake component, wherein this brake component A is being connected in the opening 15 at unreeling direction substantially and is being directed, until reaching the qualification stop position Q that is connected opening 15 ends.Yarn transmits surface 4 or 4 ' for example for having the middle convexity of a radius of curvature, and its center can be the X-axis of excellent cage.Perhaps, yarn transmit surface 4 or 4 ' even can be the plane or smooth.Shown in Figure 3 with respect to the excellent S ' that selects direction of winding 1 depart from about 90 a ° excellent S also have a yarn transmit surface 4 ', this yarn transmission surface 4 ' in inclined side 14 restrictions down of its both sides quilt, and also can be with half radially X-axis bending of excellent cage (in the cross-sectional plane of Fig. 3).But the brake area 3 of the braking element P of loading spring 8 can be for plane or circular convexity and by both sides restriction of outward extending side at its braking district Z.The coiling of each yarns Y all will clamp on braking ground in braking district Z.As the result who batches operation, shown coiling is by inlet gap 6 and reach braking district Z, will leave braking district Z in unreeling direction by outlet gap 7 subsequently.As mentioned above, Z basic predetermined stop position Q with brake component A in braking district at circumferencial direction in line so that as yarns Y in brake component A the result who stops and the tension force that will produce in yarns Y increases or tensammetric peak is distinguished amount of decrease or decay among the Z in braking.
In case brake component A breaks away from by withdrawal once more, the coiling that go out to discharge of unwinding continuously of the insertion device of the weaving loom that yarn is not just shown.Simultaneously, the coiling that is formed continuously by winding operation is the braking district Z by braking element P in turn, and braking effect makes its mutual direct contact thus.The state that docks mutually between this yarn coiling also will keep on the tubular configuration of coiling, and described coiling is released, so that unwinding goes out unwinding end 5, this has improved the dimensional stability of the tubular configuration of the coiling that discharges.
The plural braking element P that is in lasting braking position separately can be arranged, in some cases, the braking element at all excellent S places, and in some cases even a braking element of locating at the excellent S ' that selects.If located a braking element P at the excellent S ' that selects, this braking element P should be positioned at brake component A the place ahead on the direction of winding.
In some cases, all braking element P can be arranged in the annular solid that does not show, play a common director element then.In this case, invalidation means may be set, one or more thus optionally braking elements can take a passive position to from lasting braking position, and can be fixed on passive position, so that they no longer pass through to produce further influence to the coiling of yarns Y.
Fig. 5 example a simple embodiment, wherein braking element P is made of a spring tongue piece 16 (for example steel spring), this spring tongue piece 16 is fixed in the fixedly guide groove at 17 places, and transmit surface 4 with yarn and contact, to reach purpose by near its brake area 3 qualification braking district Z unwinding end 5.Spring tongue piece 16 not necessarily needs to transmit surface 4 with yarn and contacts, and even can be positioned at a bit of distance that yarn transmits surperficial 4 tops, yet wherein said distance is littler than the thickness of yarns Y.In addition, as long as brake area 3 can guarantee that with the surrender of elasticity form, spring tongue piece 16 can be supported on another end or even can be supported on two ends.Perhaps, in order to realize same or analogous function, spring tongue piece 16 also can extend at circumferencial direction substantially.
Other shape that is fixed on the braking element of lasting braking position also is possible.
In the embodiment illustrated, yarn transmits surface 4 along the direction extension substantially parallel with the X-axis of excellent cage.The yarn that only is directed to unwinding end 5 transmits the respectively downward-sloping a little or downward change circle of the end portion 4 on surface 4 ' be.Yarn might be transmitted surface 4 and be orientated the X-axis that is parallel to excellent cage continuously, or one even inclined downward (taper yarn feeding principle) is set at unreeling direction.In addition, might be equipped with a prebox (advance assembly) to excellent cage, this assembly will wind the line when element W forms to unreeling direction transmission by batching in coiling, and in some cases, partly produce intermediate distance (yarn separation) between the coiling in the beginning of excellent cage.These intermediate distances are subsequently in some cases because braking effect, even can disappear in braking district Z subsequently.
Braking element P can have a metal brake area 3 or be provided with a specific coating, and a brake area 3 of cramic coat for example is to reach the purpose that increases resistance to abrasion and ensure the stability of friction coefficient.The rod and the shape of braking element can freely be selected basically, distinguish Z as long as guarantee to form braking, distinguish in the Z braking, and wherein each coiling of yarns Y influence that can be subjected to braking effect gets final product.Coiling can be one by one or is subjected to the influence of braking effect with the form of several several one group groups.
At at least two braking element P of lasting braking position setting even can realize in the Weft thread length measuring device in routine, wherein Chang Gui Weft thread length measuring device has a brake equipment, this brake equipment has proprietary radially can a linking and retractible braking element, and then this braking element is controlled beginning and the termination that each inserts operation individually.In this case, before unwinding, can not discharge any coiling, but coiling can be respectively only from excellent cage or unwinding from storage member in inserting operation.
Claims (17)
1. Weft thread length measuring device (M) is particularly useful for air-jet loom, comprising:
A kind of fixing storage member, described fixing storage member as a kind of circular at least have at the excellent cage (K) of the separated axial substantially rod of circumferencial direction (S, S ') form,
At least one is from brake equipment outside and excellent cage (K) contact, and described brake equipment has brake component (A) extensible and withdrawal, and
A kind of can with respect to excellent cage (K) rotation batch element (W),
Described Weft thread length measuring device (M) is at each rod (S, S ') has an outside face on, described rod (S, S ') defines the axial substantially yarn that is used for the coiling of the yarns Y of transmission formation continuously and transmit surface (4,4 '), yarn transmits surface (4,4 ') and extends towards the unwinding end (5) of rod (S)
It is characterized in that,
In one of at least lasting braking position in the rod (S, S ') braking element (P) is set, the brake area (3) of described braking element (P) transmits surface (4,4 ') from the outside towards yarn,
And brake area (3) moves closer to yarn in unwinding yarn direction (W) and transmits surface (4,4 ') segment distance, and described distance equals between value less than the thickness of each coiling of yarn (Y) of zero-sum.
2. Weft thread length measuring device according to claim 1, it is characterized in that, an independent braking element (P) is set at least in the lasting braking position of two rods (S), and described rod (S) is positioned at axle (X) the mutual at least substantially antipodal position with respect to excellent cage.
3. Weft thread length measuring device according to claim 1 is characterized in that, the mode that braking element (P) or brake area (3) bend and stretch with the basic radial elastic of its axle (X) to excellent cage is formed or arranged.
4. Weft thread length measuring device according to claim 1, it is characterized in that, braking element (P) and yarn transmit surface (4,4 ') jointly define an inlet gap (6) of assembling at unreeling direction (D), and an outlet gap (7) that separates at unreeling direction (D), described outlet gap (7) preferably extends to unwinding end (5).
5. Weft thread length measuring device according to claim 4, it is characterized in that, braking district (Z) is limited between inlet gap (6) and the outlet gap (7), and in braking district (Z), yarn transmits surface (4,4 ') and brake area (3) is parallel to each other in unreeling direction (D) at least substantially.
6. Weft thread length measuring device according to claim 1, it is characterized in that, braking element (P) is arranged to and is positioned at an end portion (4 ') combined action of the unwinding end (5) on yarn transmission surface (4), described end portion (4 ') is preferably transmitting the more and more downward-sloping end portion (4 ') of a part on surface (4) with respect to yarn on the direction of the axle (X) of excellent cage, described part is positioned at the unreeling direction (D) of end portion (4 ') upstream.
7. at least one the described Weft thread length measuring device that requires according to aforesaid right is characterized in that, from circumferencial direction, the width that yarn transmits surface (4,4 ') or braking district (Z) reduces on unreeling direction (D).
8. Weft thread length measuring device according to claim 1, it is characterized in that, braking element (P) is made of a drg (2), described drg one with the guide groove (F) of axle (X) external stability substantially radially of excellent cage in guided movably, and driven by a spring (8) that is in the direction of rod (S).
9. Weft thread length measuring device according to claim 8 is characterized in that, the stroke of drg (2) outside guide groove (F) is by a drg (11) restriction, and described drg (11) preferably can be regulated.
10. Weft thread length measuring device according to claim 3 is characterized in that spring force is variable.
11. at least one described Weft thread length measuring device according to the aforesaid right requirement, it is characterized in that, arrive all rod (S at most more than two, S ') the lasting braking position place that locates, preferably, locate mutually departing from about 90 ° four rods (S) separately, a kind of independent braking element (P) is set.
12. Weft thread length measuring device according to claim 1, it is characterized in that, a kind of linking opening (15) that is used for brake component (A) is arranged on the rod (S ') of selection, and in lasting braking position a kind of braking element (P) is being set, described lasting braking position is arranged in the rod (S ') of selection or connects the preceding direction of winding that batches element (W) (1) of opening (15) in the linking that direction of winding is arranged in next rod of fwd (S).
13. Weft thread length measuring device according to claim 3 is characterized in that, each braking element (P) is made of a spring tongue piece (16), and described spring tongue piece (16) is fixed in the unreeling direction before or after the braking district (Z) still.
14. at least one the described Weft thread length measuring device according to aforesaid right requires is characterized in that the braking element that is provided (P) is disposed in one from the annular solid of outside around rods cage (K).
15. at least one described Weft thread length measuring device according to the aforesaid right requirement, it is characterized in that, lasting braking element (P) and each rod (S, S ') contact, and the braking element invalidation means is provided, is used for braking element (P) optionally is fixed on a passive position away from lasting braking position.
16. at least one described Weft thread length measuring device according to the aforesaid right requirement, it is characterized in that, rod (S, S ') can substantially radially adjust, purpose is to change the diameter of excellent cage (K), and preferably the guide groove (F) of each braking element (P) or each braking element (P) also can radially be adjusted.
17. at least one described Weft thread length measuring device according to the aforesaid right requirement, it is characterized in that, the external diameter of rod cage (K) is approximately between the 20mm to 60mm, preferably approximately between the 30mm to 45mm, one brake component (A) that all is transferred into the stop position (Q) of qualification when extending at the unreeling direction along the rod (S ') of selection is provided, and in the lasting braking position of two rods (S), provide a braking element (P) separately at least, wherein said at least two rods (S) depart from about 90 ° with respect to the rod of selecting (S ') at circumferencial direction, wherein braking element (P) transmits surface (4 with the yarn of relevant rod (S), 4 ') combined action also limits a Yarn braking district (Z), described Yarn braking district (Z) is arranged in a straight line at the stop position (Q) of circumferencial direction and qualification, so that preferably the rod of Xuan Zeing (S ') is one in the minimum rod of the excellent cage (K) of excellent cage axle (X) location of usefulness basic horizontal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10340008.7 | 2003-08-29 | ||
| DE2003140008 DE10340008A1 (en) | 2003-08-29 | 2003-08-29 | Weft thread length measuring and release assembly for jet loom has permanently applied brakes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1845866A true CN1845866A (en) | 2006-10-11 |
| CN100469671C CN100469671C (en) | 2009-03-18 |
Family
ID=34202246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200480024995XA Expired - Fee Related CN100469671C (en) | 2003-08-29 | 2004-08-19 | Weft thread length measuring device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1658231B1 (en) |
| JP (1) | JP2007504365A (en) |
| CN (1) | CN100469671C (en) |
| DE (2) | DE10340008A1 (en) |
| WO (1) | WO2005028351A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103987884A (en) * | 2011-06-20 | 2014-08-13 | 米歇尔.范德威尔公司 | Yarn storage device for a textile machine |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7908595A (en) * | 1979-11-27 | 1981-07-01 | Rueti Te Strake Bv | DEVICE FOR FORMING STOCK UNITS FROM A WIRE FEED FROM A YARN PACKAGE. |
| CS272202B2 (en) * | 1981-10-13 | 1991-01-15 | Saurer Diederichs Sa | Doser and weft meter for shuttless looms |
| EP0250359B1 (en) * | 1986-06-16 | 1990-01-17 | GebràDer Sulzer Aktiengesellschaft | Weft yarn storage device for looms |
| JPS63102788U (en) * | 1986-12-25 | 1988-07-04 | ||
| EP0286590B1 (en) * | 1987-04-08 | 1991-05-08 | GebràDer Sulzer Aktiengesellschaft | Weft yarn storage device for a loom |
| DE4021462A1 (en) * | 1990-03-22 | 1991-09-26 | Sobrevin | THREAD STORAGE WITH ELECTRICAL CONNECTION IN THE STORAGE BODY |
| DE4127798A1 (en) * | 1991-08-22 | 1993-02-25 | Iro Ab | MEASURING TOURIST |
| IT1268111B1 (en) * | 1994-10-10 | 1997-02-20 | Lgl Electronics Spa | POSITIVE MODULATED YARN BRAKING DEVICE, FOR WEFT FEEDING DEVICES |
| JPH08134749A (en) * | 1994-11-10 | 1996-05-28 | Toyota Autom Loom Works Ltd | Device length-measuring and storing weft in jet loom |
| DE19706288A1 (en) * | 1997-02-18 | 1998-08-20 | Iro Ab | Measuring delivery device |
| KR20030042472A (en) * | 2000-10-18 | 2003-05-28 | 아이알오피에이 악티엔게젤샤프트 | Supply device |
| DE50109401D1 (en) * | 2000-10-18 | 2006-05-18 | Iropa Ag | METHOD FOR REGISTERING SHOT WASHERS AND THREAD DELIVERY DEVICE |
-
2003
- 2003-08-29 DE DE2003140008 patent/DE10340008A1/en not_active Withdrawn
-
2004
- 2004-08-19 DE DE502004002642T patent/DE502004002642D1/en not_active Expired - Fee Related
- 2004-08-19 JP JP2006524300A patent/JP2007504365A/en active Pending
- 2004-08-19 EP EP04764294A patent/EP1658231B1/en not_active Not-in-force
- 2004-08-19 WO PCT/EP2004/009310 patent/WO2005028351A1/en active IP Right Grant
- 2004-08-19 CN CNB200480024995XA patent/CN100469671C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103987884A (en) * | 2011-06-20 | 2014-08-13 | 米歇尔.范德威尔公司 | Yarn storage device for a textile machine |
| CN103987884B (en) * | 2011-06-20 | 2017-06-20 | 米歇尔.范德威尔公司 | For the yarn storage equipment of weaving loom |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004002642D1 (en) | 2007-02-22 |
| EP1658231B1 (en) | 2007-01-10 |
| EP1658231A1 (en) | 2006-05-24 |
| DE10340008A1 (en) | 2005-03-24 |
| WO2005028351A1 (en) | 2005-03-31 |
| JP2007504365A (en) | 2007-03-01 |
| CN100469671C (en) | 2009-03-18 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: WUXI IRO TECHNOLOGY CO.,LTD. Assignor: IRO AB Contract record no.: 2011990000318 Denomination of invention: Thread-measuring feeding device Granted publication date: 20090318 License type: Exclusive License Open date: 20061011 Record date: 20110426 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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