EP1562847A2 - Supply device - Google Patents

Supply device

Info

Publication number
EP1562847A2
EP1562847A2 EP03789021A EP03789021A EP1562847A2 EP 1562847 A2 EP1562847 A2 EP 1562847A2 EP 03789021 A EP03789021 A EP 03789021A EP 03789021 A EP03789021 A EP 03789021A EP 1562847 A2 EP1562847 A2 EP 1562847A2
Authority
EP
European Patent Office
Prior art keywords
stop element
stop
thread
storage body
delivery device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03789021A
Other languages
German (de)
French (fr)
Other versions
EP1562847B1 (en
Inventor
Björn HALVARSON
Patrik Magnusson
Anders SVANSTRÖM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iropa AG
Original Assignee
Iropa AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Iropa AG filed Critical Iropa AG
Publication of EP1562847A2 publication Critical patent/EP1562847A2/en
Application granted granted Critical
Publication of EP1562847B1 publication Critical patent/EP1562847B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • D03D47/367—Monitoring yarn quantity on the drum
    • 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

Definitions

  • the invention relates to a delivery device according to the preamble of claim 1.
  • the second thread control device is a controlled thread clamp arranged downstream of the storage body in the thread path in the draw-off direction of the thread longitudinal sections.
  • the storage body is assigned two pin-shaped stop elements which are moved alternately axially and radially in order to initiate or terminate the respective take-off and to dimension the longitudinal thread sections.
  • a stop element transfers windings representing a dimensioned longitudinal section to the other stop element.
  • both stop elements operate outside the storage body. The winding transfers inevitably mean irregularities in the course of the thread control, since no transfers take place in the other work phases.
  • a controlled thread clamp is additionally required downstream of the storage body, which initiates each withdrawal.
  • the delivery devices according to US 4 132 370, US 449863, DE 3032971 A, EP 0250359 A require, because of the mechanism for controlling the movement of the stop elements inside the storage body, a large storage body with a diameter of at least about 120 mm as a rule, but which has a pronounced balloon effect at high thread speeds generated in the withdrawn thread.
  • a strong balloon effect does not allow flight times or entry frequencies that do justice to the performance of modern air jet looms.
  • the mechanical drive controls of the stop elements in the known delivery devices are technically complex and prone to failure.
  • the drive concepts would not be expedient for a small-diameter storage body, because the small-diameter storage body has to work at a high winding speed, there is too little installation space for mechanical drives in the storage body, and unusually high drive powers would be required due to the power losses in the mechanical gears.
  • the cam controls of the delivery device according to EP 0 098 254 are unsuitable for high winding speeds, such as are used in small-diameter storage bodies, due to the large moving masses and unavoidable mechanical play.
  • the invention has for its object to provide a delivery device of the type mentioned with short flight times and high entry frequencies, small specify messy storage body that enables a uniform and therefore low-interference intermittent thread control, the construction effort in the movement controls of the stop elements should be low.
  • the second, pin-shaped stop element only has to be moved essentially radially to the axis of the storage body in order to initiate a deduction
  • a structurally simple and fast movement control can be used for the second stop element.
  • the movement control of the first stop element can also be made simple, since the first stop element does not initiate a draw-off, but only has to dimension the longitudinal thread section and end the draw-off.
  • the second stop element initiates each take-off at the same axial position of the storage surface, and the first stop element ends the take-off near the second stop element, there is a uniform intermittent thread control.
  • a thread clamp downstream of the storage body can be omitted, which could have undesirable influences on the thread control. If windings perform any axial movement in the take-off direction when transferring to the second stop element, any trailing movement of the free thread end in the insertion device of the weaving machine remains negligibly small due to the small-diameter storage body.
  • the two stop elements are arranged relative to one another in such a way that the first stop element transfers turns to the second stop element without any significant wobble movement in the thread extending from the delivery device to the weaving machine. This is the case if the position of the second stop element is adjacent to the stop position of the first stop element, so that the foremost turn in the take-off direction is taken over directly by the second stop element when the first stop element is moved from its stop position to the release position and returns to the thread dimensioning position.
  • the second stop element is preferably located at a position which lies in the axial direction of the storage body between the stop position of the first stop element and the front end of the storage body, and / or in the winding direction, ie in the circumferential direction of the storage body, behind or next to the Stop position of the first stop element. Basically, it can be said that the second stop element is positioned as close to the stop position of the first stop element as the structural options allow.
  • the first stop element expediently essentially borders directly on the second stop element moved into the engagement position. There may even be a direct contact, so that the second stop element forms a stop for the first stop element and defines the stop position of the first stop element.
  • the first stop element can be concavely hollowed out on its side pointing in the withdrawal direction, in order to then be able to nestle as closely as possible to the second stop element in the stop position.
  • the functions of the first and second stop elements are the same for each deduction.
  • the second stop element stops the thread after a pull has ended, while the first stop element carries out its thread dimensioning function and moves in the direction of the stop position.
  • the second stop element is only moved essentially radially from its engagement position into the passive position after, for example, a trigger signal has been emitted by the weaving machine. Due to the further winding of windings and / or by a forced movement and / or by the increasing tensile force towards the end of the deduction, the first stop element comes into the stop position, in which it ends the withdrawal, while the second stop element remains in its passive position.
  • the second stop element is brought back into its engaged position and the first stop element is moved from the stop position into the release position and also immediately towards the thread dimensioning position in order to carry out the next thread dimensioning function.
  • the first stop element In order to influence the thread turns as little as possible and to be able to use a simple drive control for the first stop element, the first stop element is moved in its engagement position from the thread dimension position to the stop position by the thread turns themselves. This movement takes place very quickly due to the high winding speed on the small-diameter storage body.
  • a drive in the movement control can control this movement of the first stop element from the thread dimension position into the stop position, for example in order to precisely define the time at which the take-off ends.
  • the storage body should only have a diameter between approximately 25 and approximately 60 mm, preferably between approximately 30 and 45 mm, the diameter, preferably, should be variable in order to be able to adapt to the weaving width.
  • only the ends of the two stop elements in the stop position of the first stop element and the engagement position of the second stop element should be as close as possible to one another and the stop elements should be spaced apart from one another. This can be achieved by interlacing, angular positioning, cranking or similar measures without impairing the thread control function of both stop elements.
  • FIG. 1 is a schematic perspective view of part of a delivery device
  • Fig. 8 is a side view
  • FIG. 9 shows a cross section of a motion control with a first stop element.
  • a delivery device F (FIG. 1) with a thread dimensioning function for a weaving machine (not shown) has a stationary carrier 1, on which a storage body K is arranged.
  • the storage body K resembles, for example, a rod cage with axially extending rods 3, the outer surfaces of which define an approximately cylindrical, preferably tapering to the right in FIG. 1, storage surface 4.
  • the rods 3 are attached to the support 1 with foot parts 5 such that they can be adjusted radially in a certain area (radial adjustment devices 6) in order to be able to vary the outer diameter d of the storage body K to adapt to the weaving width.
  • the outer diameter d of the storage body K is only approximately between 25 and 60 mm, preferably approximately 30 to 45 mm.
  • the length of the storage surface 4 in the direction of the axis X of the storage body is greater than the dimension of the outer diameter d.
  • a winding member W rotates around the outer periphery of the carrier 1 (winding direction 2), for example a winding tube carrying an outlet eyelet, which is connected to a hollow drive shaft (not shown).
  • a first and a second, in each case pin-shaped, stop element S1, S2 are assigned to the winding body K.
  • Each stop element S1, S2 is arranged in a stationary movement control, not shown in FIG. 1, the two movement controls possibly being combined in one housing.
  • the stop elements S1, S2 are moved cyclically and as indicated by curves A, B, e.g. depending on the rotational movement of the winding element W and / or the work cycles of the weaving machine.
  • the stop elements S1, S2 are moved in planes which are oriented essentially radially to the X axis.
  • a thread not shown in FIG. 1 extends from the winding element W to the storage surface 4 and is wound thereon in adjacent windings which move forward in the direction of the axis X parallel to one another and form a thread supply, which is temporarily stored on the winding body K.
  • the weaving machine not shown, for example an air-jet weaving machine with a main nozzle, draws a longitudinal section of the thread for each entry from this thread supply, the stop elements S1, S2 in cooperation dimension the longitudinal section intended for deduction, the second stop element S2 initiates the deduction, and the first stop element S1 ends the deduction.
  • the triggering of the take-off is triggered, for example, by a trigger signal transmitted by the weaving machine.
  • the movement sequence of the first stop element S1 is first explained using curve B.
  • the stop element S1 is initially moved essentially radially to the axis X between an engagement position in the thread path and in the storage surface 4 and a release position outside the thread path and outside the storage surface 4, the engagement position being held along the curve part 12 while the Release position is held along the curve part 9.
  • the first stop element S1 is also moved in the axial direction, specifically by driving the drive control along and in the arrow direction of the curve part 9, but in the arrow direction and along the curve part 12 through the windings themselves.
  • the movement control can of the first stop element S1 also contain a drive which positively controls the movement of the first stop element S1 along the curve part 12.
  • the tip of the first stop element S1 expediently moves in the engagement position in an axial groove or an axial slot of a rod 3.
  • the second stop element S2 also engages there. This is to prevent loops from slipping through.
  • the stop element S1 In the engaged position of the stop element S1, it is moved in the direction of the arrow between a thread dimensioning layer 11 and a stop layer 7, either by the windings themselves or by a drive, not shown.
  • the stop element S1 In the release position, the stop element S1 is moved along the curve part 9 from a location 8 corresponding to the stop position 7 to a location 10 corresponding to the thread dimension position 11, by means of a drive of the movement control.
  • the stop element S1 is pulled from the stop position 7 in the direction of the arrow to the location 8.
  • the stop element S1 is pushed from the location 10 in the direction of the arrow into the thread dimensioning layer 11.
  • the sequence of movements (curve A) of the second stop element S2 is different because the second stop element S1 is essentially only moved back and forth radially to the axis X, specifically between an engagement position 7 ′ in which it engages in the thread path and the storage surface 4 and a passive position 8 ', in which it is withdrawn from the storage surface 4 and from the thread path.
  • the first second stop elements S1, S2 are essentially one behind the other in the direction of the axis X.
  • the second stop element S2 could also be offset in the circumferential direction of the storage surface 4 with respect to the first stop element S1.
  • the movements of the two stop elements S1, S2 are coordinated with one another such that the first stop element is then moved from a stop position 7 over location 8 and along curve part 9 and location 10 into thread dimensioning position 11, while second stop element S2 moves into its engaged position T occupies.
  • the second stop element S2 is only moved into its passive position 8 ′ when the first stop element S1 is in its engagement position along the curve part 12.
  • the thread dimensioning layer 11 of the first stop element S1 is defined such that the first stop element S1 engages in the thread path precisely between the last turn intended for a take-off and the first turn just formed by the winding element W for the next take-off.
  • the work flow of the delivery device F of FIG. 1 is explained with reference to FIGS. 2 to 6.
  • the second stop element S2 is in its engagement position 7 ′, so that the thread Y, which extends over the front end of the storage body K, is held. Thread turns are already present upstream of the second stop element S2.
  • the first stop element S2 is in its engagement position along the curve part 12 and moves with the continuously wound turns in the direction of the second stop element S2.
  • the thread section dimensioned for a draw-off is defined by the turns present between the first and second stop elements S1, S2. Upstream of the first stop element S1 there are also windings on the storage surface 4.
  • the loom emits a trigger signal because a take-off is to be initiated.
  • the second stop element S2 is pulled from the engagement position 7 'of FIG. 2 into the passive position 8' of FIG. 3 from the thread path. With this, the take-off is initiated and the thread (arrow 14) moves into the weaving machine.
  • the windings held ready downstream of the first stop element S1 are unwound.
  • the first stop element S1 moves further along its curve part 12 and in the axial direction to the second stop element S2. Further turns are wound upstream of the first stop element S1.
  • the first stop element S1 After all windings have been unwound downstream of the first stop element S1, the first stop element S1 reaches its stop position 7, for example at a stationary stop 13 (FIG. 4).
  • the stop 13 can be provided in the storage body or outside the storage body or also in the movement control of the first stop element S1. Alternatively, the stop 13 could be formed directly by the second stop element S2. In the working phase in FIG. 4, there are even fewer turns upstream of the first stop element S1 than are required for a take-off. As soon as the first stop element S1 has reached its stop position 7, for example at the stop 13, the deduction has ended.
  • the second stop element S2 With the end of the trigger or after this, the second stop element S2 is shifted from its passive position 8 'back into its engagement position T (FIG. 5).
  • the first stop element S1 is moved radially outward from its stop position 7 to the location 8 out of the thread path and immediately further along the curve part 9 in the direction of the thread dimensioning position.
  • the windings present upstream of the first stop element S1 are transferred to the second stop element S2.
  • the first stop element S1 is adjusted again via the location 10 into the thread dimensioning position 11 (FIG. 6), exactly behind the last turn required for the next draw-off and before the first turn emerging from the winding element W for the further draw-off. With the winding of further turns, the first stop element S1 moves along the curve part 12 until the working phase according to FIG.
  • FIG. 7 shows in a dashed area 25 of the storage surface 4 the possible positions of the second stop element S2, indicated by crosses, in relation to the position of the first stop element S1 in the stop position 7.
  • This area lies within a field defined by the thread Y.
  • the position of the second stop element S2 should be as close as possible to the position of the first stop element S1 in the stop position 7, so that the thread turns can be transferred reliably. Positions of the second stop element S2 are possible, in which it lies in the axial direction between the first stop element S1 and the front end of the storage body, or in the winding direction 2 is offset to the rear in the circumferential direction.
  • FIG. 7 shows in dashed lines the movement path of the first stop element S1 between the location 10 and the thread dimensioning layer 11 and the stop position 7.
  • FIG. 8 schematically illustrates an embodiment in which the second stop element S2 is positioned directly behind the first stop element S1 in the pull-off direction when the first stop element S1 has reached its stop position 7.
  • Only the ends of the stop elements S1, S2 are expediently as close as possible to one another, while their relative distance from one another increases with increasing distance from the ends.
  • the first stop element S1 is then inclined, while the second stop element S2 is cranked with a thread control part 22 '.
  • the stop elements S1, S2 could also be interleaved with one another, i.e., in a view in the direction of the axis X, deviated from a purely radial orientation on the axis X.
  • the thread control device 15 has a housing 16 in which a magnetic winding 17 and an iron core 18 are contained. Furthermore, an axially movable magnet armature 19 is provided, a spring 20 being arranged between the iron core 18 and the magnet armature 19, which spring 20 separates the magnet armature 19 from the iron core 18 pushes away.
  • the stop element S1 consists of a first pin-shaped part 21, which is connected to the magnet armature 19, and a likewise pin-shaped thread control part 22, which is connected to the first part 21 via a resilient joint 23.
  • the resilient joint 23 consists, for example, of an elastomer or of rubber, for example on polyurethane, and generates a pretension which acts on the thread control part 22 towards an example indicated stop 24, which defines the thread dimensioning position 11 shown for the first stop element S1.
  • a weak permanent magnet could temporarily hold the thread control part 22.
  • the stop 13 is also provided in the opposite direction of movement, which can be adjustable to define the stop position 7 of the first stop element S1. 9, the stop element S1 is held in its engaged position by the action of the spring 20, specifically in the stop position. If the magnet coil 17 is excited, the magnet armature 19 is pulled from the iron core 18 and the spring 20 is compressed, so that the stop element S1 is pulled into its release position, not shown.
  • bidirectionally actuated magnet or an arrangement of two magnets working in opposite directions could also be used to move the first stop element S1 between its engagement and release positions.
  • a similar, axially operating drive (not shown) could be provided, which controls the axial movement of the thread control part 22, and possibly also executes the return movement into the thread dimensioning position.
  • a simple joint could then be provided instead of the resilient joint 23.
  • the movement control of the second stop element S1 can be similar to the movement control 15 in FIG. 9, with the difference that no movement of the second stop element S2 in the axial direction of the storage body K is required.
  • the magnet armature 10 could be connected directly to the pin-shaped second stop element S2 in order to move it essentially radially back and forth with respect to the axis X.
  • the drive controls of both stop elements S1, S2 could be combined in a common housing.
  • the stop 13 could also contain a damping in order to alleviate the tension peak in the thread drawn off when the first stop element S1 reaches its stop position 7.
  • the movements of the first stop element S1 are expediently controlled as a function of the winding movement of the winding element W, while the movements of the second stop element S2 are controlled, for example, as a function of the weaving cycles.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

The invention relates to a supply device (F) comprising a thread measuring function for a loom, said device being provided with a stationary, narrow-diameter storage body (K), to which a first pin-type stop element (S1) is allocated. Said element can be displaced in an essentially radial and axial direction in relation to the axis (X) of the storage body in order to perform a thread measuring function and to stop the respective take-off of a section of thread. A second pin-type stop element (S2), which is displaced exclusively back and forth in an essentially radial direction relative to the axis (X), between an engagement position and a passive position, co-operates with the first stop element (S1) in order to initiate the corresponding thread take-off and to receive the wound thread that has been measured by the first stop element (S1). Both stop elements (S1, S2) lie adjacent to one another and are offset in the axial direction and/or in the peripheral direction of the storage body.

Description

Liefergerät feeder
Die Erfindung betrifft ein Liefergerät gemäß Oberbegriff des Anspruchs 1.The invention relates to a delivery device according to the preamble of claim 1.
Bei dem aus WO02/33156 A bekannten Liefergerät dieser Art ist die zweite Fadensteuervorrichtung eine in Abzugsrichtung der Fadenlängsabschnitte stromab des Speicherköφers im Fadenweg angeordnete, gesteuerte Fadenklemme. Ein wichtiger Vorteil des bekannten Liefergeräts resultiert aus dem kleindurchmessrigen Speicherkörper, der aufgrund eines extrem reduzierten Balloneffekts beim Fadenabzug außerordentlich kurze Eintragszeiten und außerordentlich hohe Eintragsfrequenzen ermöglicht, wie sie, vorzugsweise, in modernen Luftdüsen-Webmaschinen unabdingbar sind, um die Leistungsfähigkeit der Webmaschine optimal nutzen zu können. Das erste Stoppelement beendet in seiner Stopplage den Abzug. Die Fadenklemme leitet bei bereits wieder in die Fadenbemessungslage verstelltem ersten Stoppelement den nächsten Fadenabzug ein. Da das Einleiten und das Beenden des Abzugs nicht nur an verschiedenen Stellen des Fadenwegs, sondern auch auf mechanisch unterschiedliche Weisen gesteuert werden, kann bei sensiblem Fadenmaterial der zwischen dem Speicherkörper und der Fadenklemme fliegende Fadenabschnitt schwierig zu kontrollieren sein.In the delivery device of this type known from WO02 / 33156 A, the second thread control device is a controlled thread clamp arranged downstream of the storage body in the thread path in the draw-off direction of the thread longitudinal sections. An important advantage of the known delivery device results from the small-diameter storage body, which, due to an extremely reduced balloon effect during thread take-off, enables extraordinarily short entry times and extraordinarily high entry frequencies, as are essential, preferably in modern air jet weaving machines, in order to make optimal use of the performance of the weaving machine can. The first stop element ends the deduction in its stop position. The thread clamp initiates the next thread take-off when the first stop element has already been adjusted again into the thread dimensioning position. Since the initiation and termination of the trigger are controlled not only at different points on the thread path, but also in mechanically different ways, the thread portion flying between the storage body and the thread clamp can be difficult to control with sensitive thread material.
Bei dem aus EP 0 098 254 A bekannten Liefergerät sind dem Speicherkörper zwei stiftförmige Stoppelemente zugeordnet, die alternierend axial und radial bewegt werden, um den jeweiligen Abzug einzuleiten bzw. zu beenden und die Fadenlängsabschnitte zu bemessen. In einer von zwei unterschiedlichen Arbeitsphasen transferiert bei angehaltenem Faden ein Stoppelement einen bemessenen Längsabschnitt repräsentierende Windungen an das andere Stoppelement. Bei einer Ausführungsform arbeiten beide Stoppelemente außerhalb des Speicherkörpers. Die Windungstransfers bedeuten zwangsweise Ungleichförmigkeiten im Ablauf der Fadenkontrolle, da in den anderen Arbeitsphasen keine Transfers stattfinden.In the delivery device known from EP 0 098 254 A, the storage body is assigned two pin-shaped stop elements which are moved alternately axially and radially in order to initiate or terminate the respective take-off and to dimension the longitudinal thread sections. In one of two different working phases, when the thread is stopped, a stop element transfers windings representing a dimensioned longitudinal section to the other stop element. In one embodiment, both stop elements operate outside the storage body. The winding transfers inevitably mean irregularities in the course of the thread control, since no transfers take place in the other work phases.
Bei dem aus US 4 132 370 bekannten Liefergerät sind auf einer innen im Speicherkörper drehbaren Scheibe vier stiftförmige Stoppelemente angeordnet, die mit einer kontinuierlichen Drehbewegung der Scheibe zwangsweise axial und radial verstellt werden. Eine präzise Kontrolle beim Einleiten und Beenden des Abzugs ist wegen gleitender Übergänge schwierig, wie auch die korrekte Abstimmung auf die Webtakte. Dies gilt auch für das Liefergerät gemäß US 4 498 639 mit zahnförmigen Stoppelementen.In the delivery device known from US Pat. No. 4,132,370, four pin-shaped stop elements are arranged on a disk which can be rotated inside the storage body and which are forced axially and radially with a continuous rotational movement of the disk become. Precise control when initiating and exiting the trigger is difficult due to smooth transitions, as is correct alignment with the web cycle. This also applies to the delivery device according to US 4,498,639 with tooth-shaped stop elements.
Bei dem aus DE 30 32 971 A bekannten Liefergerät wird zusätzlich stromab des Speicherköφers eine gesteuerte Fadenklemme benötigt, die jeden Abzug einleitet.In the delivery device known from DE 30 32 971 A, a controlled thread clamp is additionally required downstream of the storage body, which initiates each withdrawal.
Auch bei dem aus EP 0 250 359 A bekannten Liefergerät ist aus diesem Grund zusätzlich zu einer Vielzahl zahnförmiger Stoppelemente eine gesteuerte Fadenklemme vorgesehen, um den jeweiligen Abzug einzuleiten.For this reason, too, in the delivery device known from EP 0 250 359 A, in addition to a large number of tooth-shaped stop elements, a controlled thread clamp is provided in order to initiate the respective take-off.
Die Liefergeräte gemäß US 4 132 370, US 449863, DE 3032971 A, EP 0250359 A erfordern wegen des Mechanismus zur Bewegungssteuerung der Stoppelemente im Inneren des Speicherkörpers einen großen Speicherkörper mit im Regelfall mindestens etwa 120 mm Durchmesser, der jedoch bei hoher Fadengeschwindigkeit einen ausgeprägten Balloneffekt im abgezogenen Faden erzeugt. Ein starker Balloneffekt lässt keine Flugzeiten bzw. Eintragsfrequenzen zu, die der Leistungsfähigkeit moderner Luftdüsenwebmaschinen gerecht werden.The delivery devices according to US 4 132 370, US 449863, DE 3032971 A, EP 0250359 A require, because of the mechanism for controlling the movement of the stop elements inside the storage body, a large storage body with a diameter of at least about 120 mm as a rule, but which has a pronounced balloon effect at high thread speeds generated in the withdrawn thread. A strong balloon effect does not allow flight times or entry frequencies that do justice to the performance of modern air jet looms.
Die mechanischen Antriebssteuerungen der Stoppelemente bei den bekannten Liefergeräten sind technisch aufwendig und störungsanfällig. Die Antriebskonzepte wären für einen kleindurchmessrigen Speicherkörper nicht zweckmäßig, weil bei dem kleindurchmessrigen Speicherköφer mit hoher Wickelgeschwindigkeit gearbeitet werden muss, im Speicherkörper zu wenig Einbauraum für mechanische Antriebe vorliegt, und unzweckmäßig hohe Antriebsleistungen wegen der Leistungsverluste in den mechanischen Getrieben erforderlich wären. Die Nockensteuerungen des Liefergeräts gemäß EP 0 098 254 für hohe Wickelgeschwindigkeiten, wie sie bei kleindurchmessrigen Speicherkörpern gebraucht werden, aufgrund großer bewegter Massen und unvermeidbaren mechanischen Spiels unzweckmäßig.The mechanical drive controls of the stop elements in the known delivery devices are technically complex and prone to failure. The drive concepts would not be expedient for a small-diameter storage body, because the small-diameter storage body has to work at a high winding speed, there is too little installation space for mechanical drives in the storage body, and unusually high drive powers would be required due to the power losses in the mechanical gears. The cam controls of the delivery device according to EP 0 098 254 are unsuitable for high winding speeds, such as are used in small-diameter storage bodies, due to the large moving masses and unavoidable mechanical play.
Der Erfindung liegt die Aufgabe zugrunde, ein Liefergerät der eingangs genannten Art mit einem kurze Flugzeiten und hohe Eintragfrequenzen ermöglichenden, kleindurch- messrigen Speicherkörper anzugeben, das eine gleichförmige und deshalb störungsarme intermittierende Fadenkontrolle ermöglicht, wobei der bauliche Aufwand in den Bewegungssteuerungen der Stoppelemente gering sein soll.The invention has for its object to provide a delivery device of the type mentioned with short flight times and high entry frequencies, small specify messy storage body that enables a uniform and therefore low-interference intermittent thread control, the construction effort in the movement controls of the stop elements should be low.
Die gestellte Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved with the features of claim 1.
Da das zweite, stiftförmige Stoppelement ausschließlich im Wesentlichen radial zur Achse des Speicherköφers zu bewegt werden braucht, um einen Abzug einzuleiten, kann für das zweite Stoppelement eine baulich einfache und schnelle Bewegungssteuerung verwendet werden. Die Bewegungssteuerung des ersten Stoppelementes lässt sich ebenfalls einfach gestalten, da das erste Stoppelement keinen Abzug einleitet, sondern nur den Fadenlängsabschnitt zu bemessen und den Abzug zu beenden hat. Da das zweite Stoppelement jeden Abzug an derselben Axialposition der Speicheroberfläche einleitet, und das erste Stoppelement den Abzug nahe dem zweiten Stoppelement beendet, ergibt sich eine gleichförmige intermittierende Fadenkontrolle. Eine Fadenklemme stromab des Speicherköφers kann weggelassen werden, die unerwünschte Einflüsse auf die Fadenkontrolle haben könnte. Sofern Windungen beim Transferieren an das zweite Stoppelement überhaupt eine axiale Bewegung in Abzugsrichtung ausführen, bleibt wegen des kleindurchmessrigen Speicherköφers eine etwaige Nachlaufbewegung des freien Fadenendes in der Eintragvorrichtung der Webmaschine vernachlässigbar klein.Since the second, pin-shaped stop element only has to be moved essentially radially to the axis of the storage body in order to initiate a deduction, a structurally simple and fast movement control can be used for the second stop element. The movement control of the first stop element can also be made simple, since the first stop element does not initiate a draw-off, but only has to dimension the longitudinal thread section and end the draw-off. Since the second stop element initiates each take-off at the same axial position of the storage surface, and the first stop element ends the take-off near the second stop element, there is a uniform intermittent thread control. A thread clamp downstream of the storage body can be omitted, which could have undesirable influences on the thread control. If windings perform any axial movement in the take-off direction when transferring to the second stop element, any trailing movement of the free thread end in the insertion device of the weaving machine remains negligibly small due to the small-diameter storage body.
Die beiden Stoppelemente sind relativ zueinander so angeordnet, dass das erste Stoppelement Windungen an das zweite Stoppelement ohne deutliche Nachlaufbewegung im sich vom Liefergerät zur Webmaschine erstreckenden Faden transferiert. Dies ist der Fall, falls die Position des zweiten Stoppelements der Stopplage des ersten Stoppelements benachbart ist, so dass die in Abzugsrichtung vorderste Windung vom zweiten Stoppelement direkt übernommen wird, wenn das erste Stoppelement aus seiner Stopplage in die Freigabestellung bewegt wird und zur Fadenbemessungslage zurückkehrt. Vorzugsweise befindet sich das zweite Stoppelement an einer Position, die in Axialrichtung des Speicherkörpers zwischen der Stopplage des ersten Stoppelementes und dem Frontende des Speicherköφers liegt, und/oder in Wickelrichtung, d.h. in Umfangsnchtung des Speicherköφers, hinter bzw. neben der Stopplage des ersten Stoppelements. Grundsätzlich lässt sich sagen, dass das zweite Stoppelement so nahe bei der Stopplage des ersten Stoppelementes positioniert wird, wie es die baulichen Möglichkeiten zulassen.The two stop elements are arranged relative to one another in such a way that the first stop element transfers turns to the second stop element without any significant wobble movement in the thread extending from the delivery device to the weaving machine. This is the case if the position of the second stop element is adjacent to the stop position of the first stop element, so that the foremost turn in the take-off direction is taken over directly by the second stop element when the first stop element is moved from its stop position to the release position and returns to the thread dimensioning position. The second stop element is preferably located at a position which lies in the axial direction of the storage body between the stop position of the first stop element and the front end of the storage body, and / or in the winding direction, ie in the circumferential direction of the storage body, behind or next to the Stop position of the first stop element. Basically, it can be said that the second stop element is positioned as close to the stop position of the first stop element as the structural options allow.
Zweckmäßig grenzt das erste Stoppelement in der Stopplage sogar im Wesentlichen unmittelbar an das in die Eingriffsstellung bewegte zweite Stoppelement an. Gegebenenfalls entsteht sogar eine direkte Anlage, so dass das zweite Stoppelement einen Anschlag für das erste Stoppelement bildet und die Stopplage des ersten Stoppelements definiert. Das erste Stoppelement kann an seiner in Abzugsrichtung weisenden Seite konkav ausgehöhlt sein, um sich in der Stopplage dann möglichst eng an das zweite Stoppelement anschmiegen zu können.In the stop position, the first stop element expediently essentially borders directly on the second stop element moved into the engagement position. There may even be a direct contact, so that the second stop element forms a stop for the first stop element and defines the stop position of the first stop element. The first stop element can be concavely hollowed out on its side pointing in the withdrawal direction, in order to then be able to nestle as closely as possible to the second stop element in the stop position.
Die Funktionen der ersten und zweiten Stoppelement sind bei jedem Abzug gleich. Das zweite Stoppelement hält nach Beenden eines Abzugs den Faden an, während das erste Stoppelement seine Fadenbemessungsfunktion ausführt und sich in Richtung zur Stopplage bewegt. Zum Einleiten eines Abzugs wird das zweite Stoppelement aus seiner Eingriffsstellung in die Passivstellung nur im Wesentlichen radial bewegt, nachdem beispielsweise ein Triggsignal von der Webmaschine abgegeben wurde. Durch das weitere Aufwickeln von Windungen und/oder durch eine Zwangsbewegung und/oder durch die wachsende Zugkraft gegen Ende des Abzugs gelangt das erste Stoppelement in die Stopplage, in der es den Abzug beendet, während das zweite Stoppelement in seiner Passivstellung verharrt. Am Ende des Abzugs oder etwas nacheilend wird das zweite Stoppelement wieder in seine Eingriffstellung gebracht und das erste Stoppelement aus der Stopplage in die Freigabestellung und auch gleich wieder in Richtung zur Fadenbemessungslage verstellt, um die nächste Fadenbemessungsfunktion auszuführen. Dieser Ablauf folgt harmonisch.The functions of the first and second stop elements are the same for each deduction. The second stop element stops the thread after a pull has ended, while the first stop element carries out its thread dimensioning function and moves in the direction of the stop position. To initiate a take-off, the second stop element is only moved essentially radially from its engagement position into the passive position after, for example, a trigger signal has been emitted by the weaving machine. Due to the further winding of windings and / or by a forced movement and / or by the increasing tensile force towards the end of the deduction, the first stop element comes into the stop position, in which it ends the withdrawal, while the second stop element remains in its passive position. At the end of the withdrawal or somewhat lagging, the second stop element is brought back into its engaged position and the first stop element is moved from the stop position into the release position and also immediately towards the thread dimensioning position in order to carry out the next thread dimensioning function. This process follows harmoniously.
Um die Fadenwindungen so wenig wie möglich zu beeinflussen, und eine einfache Antriebssteuerung für das erste Stoppelement verwenden zu können, wird das erste Stoppelement in seiner Eingriffsstellung aus der Fadenbemessungslage bis in die Stopplage durch die Fadenwindungen selbst bewegt. Diese Bewegung erfolgt wegen der hohen Wickelgeschwindigkeit auf dem kleindurchmessrigen Speicherkörper sehr zügig. Alternativ kann jedoch ein Antrieb in der Bewegungssteuerung diese Bewegung des ersten Stoppelements von der Fadenbemessungslage in die Stopplage steuern, beispielsweise um den Zeitpunkt des Endes des Abzugs präzise zu definieren.In order to influence the thread turns as little as possible and to be able to use a simple drive control for the first stop element, the first stop element is moved in its engagement position from the thread dimension position to the stop position by the thread turns themselves. This movement takes place very quickly due to the high winding speed on the small-diameter storage body. Alternatively, however, a drive in the movement control can control this movement of the first stop element from the thread dimension position into the stop position, for example in order to precisely define the time at which the take-off ends.
Der Speicherkörpers sollte nur einen Durchmesser zwischen etwa 25 und etwa 60 mm, vorzugsweise zwischen etwa 30 und 45 mm, haben, wobei der Durchmesser, vorzugsweise, variabel sein sollte, um eine Anpassung an die Webbreite vornehmen zu können.The storage body should only have a diameter between approximately 25 and approximately 60 mm, preferably between approximately 30 and 45 mm, the diameter, preferably, should be variable in order to be able to adapt to the weaving width.
Um die beiden Stoppelemente relativ zum Speicherkörper optimal anordnen zu können, sollten nur die Enden der beiden Stoppelemente in der Stopplage des ersten Stoppelements und der Eingriffsstellung des zweiten Stoppelementes so nahe wie möglich beieinander liegen und sich die Stoppelemente im Abstand von den Enden voneinander entfernen. Dies kann durch Verschränken, winkeliges Anstellen, Abkröp- fen oder ähnliche Maßnahmen erreicht werden, ohne die Fadensteuerfunktion beider Stoppelemente zu beeinträchtigen.In order to be able to optimally arrange the two stop elements relative to the storage body, only the ends of the two stop elements in the stop position of the first stop element and the engagement position of the second stop element should be as close as possible to one another and the stop elements should be spaced apart from one another. This can be achieved by interlacing, angular positioning, cranking or similar measures without impairing the thread control function of both stop elements.
Ausführungsformen des Erfindungsgegenstandes werden anhand der Zeichnung erläutert. Es zeigen:Embodiments of the subject matter of the invention are explained with reference to the drawing. Show it:
Fig. 1 eine schematische Perspektivansicht eines Teils eines Liefergeräts,1 is a schematic perspective view of part of a delivery device,
Fig. 2 bis 6 verschiedene Arbeitsphasen des Liefergeräts in schematischem Längsschnittansichten,2 to 6 different working phases of the delivery device in schematic longitudinal sectional views,
Fig. 7 eine Schemadraufsicht,7 is a schematic top view,
Fig. 8 eine Seitenansicht, undFig. 8 is a side view, and
Fig. 9 einen Querschnitt einer Bewegungssteuerung mit einem ersten Stoppelement. Ein Liefergerät F (Fig. 1) mit Fadenbemessungsfunktion für eine Webmaschine (nicht gezeigt), weist einen stationären Träger 1 auf, an welchem ein Speicherköφer K angeordnet ist. Der Speicherkörper K gleicht beispielsweise einem Stabkäfig mit sich axial erstreckenden Stäben 3, deren Außenoberflächen eine annähernd zylindrische, sich vorzugsweise in Fig. 1 nach rechts verjüngende Speicheroberfläche 4 definieren. Die Stäbe 3 sind mit Fußteilen 5 so am Träger 1 angebracht, dass sie sich in einem bestimmten Bereich radial verstellen lassen (Radialverstellvorrichtungen 6), um den Außendurchmesser d des Speicherkörpers K zur Anpassung an die Webbreite variieren zu können. Der Außendurchmesser d des Speicherköφers K beträgt nur etwa zwischen 25 und 60 mm, vorzugsweise etwa 30 bis 45 mm. Die Länge der Speicheroberfläche 4 in Richtung der Achse X des Speicherkörpers ist größer als das Maß des Außendurchmessers d.Fig. 9 shows a cross section of a motion control with a first stop element. A delivery device F (FIG. 1) with a thread dimensioning function for a weaving machine (not shown) has a stationary carrier 1, on which a storage body K is arranged. The storage body K resembles, for example, a rod cage with axially extending rods 3, the outer surfaces of which define an approximately cylindrical, preferably tapering to the right in FIG. 1, storage surface 4. The rods 3 are attached to the support 1 with foot parts 5 such that they can be adjusted radially in a certain area (radial adjustment devices 6) in order to be able to vary the outer diameter d of the storage body K to adapt to the weaving width. The outer diameter d of the storage body K is only approximately between 25 and 60 mm, preferably approximately 30 to 45 mm. The length of the storage surface 4 in the direction of the axis X of the storage body is greater than the dimension of the outer diameter d.
Um den Außenumfang des Trägers 1 rotiert (Wickelrichtung 2) ein Wickelorgan W, beispielsweise ein eine Auslassöse tragendes Wickelrohr, das mit einer nicht dargestellten, hohlen Antriebswelle verbunden ist.A winding member W rotates around the outer periphery of the carrier 1 (winding direction 2), for example a winding tube carrying an outlet eyelet, which is connected to a hollow drive shaft (not shown).
Dem Wickelkörper K ist ein erstes und ein zweites, jeweils stiftformiges Stoppelement S1, S2 zugeordnet. Jedes Stoppelement S1, S2 ist in einer in Fig. 1 nicht gezeigten stationären Bewegungssteuerung angeordnet, wobei die beiden Bewegungssteuerungen gegebenenfalls in einem Gehäuse zusammengefasst sind. Die Stoppelemente S1, S2 werden zyklisch und wie durch die Kurven A, B angedeutet bewegt, und zwar z.B. in Abhängigkeit von der Rotationsbewegung des Wickelelementes W und/oder den Arbeitstakten der Webmaschine. Die Stoppelemente S1, S2 werden in Ebenen bewegt, die im Wesentlichen radial zur Achse X orientiert sind.A first and a second, in each case pin-shaped, stop element S1, S2 are assigned to the winding body K. Each stop element S1, S2 is arranged in a stationary movement control, not shown in FIG. 1, the two movement controls possibly being combined in one housing. The stop elements S1, S2 are moved cyclically and as indicated by curves A, B, e.g. depending on the rotational movement of the winding element W and / or the work cycles of the weaving machine. The stop elements S1, S2 are moved in planes which are oriented essentially radially to the X axis.
Ein in Fig. 1 nicht gezeigter Faden (Fig. 2 mit Y angedeutet) erstreckt sich aus dem Wickelelement W zur Speicheroberfläche 4 und wird auf dieser in nebeneinanderliegenden Windungen aufgewickelt, die sich in Richtung der Achse X parallel zueinander vorwärts bewegen und einen Fadenvorrat bilden, der auf dem Wickelkörper K zwischengespeichert wird. Aus diesem Fadenvorrat zieht die nicht gezeigte Webmaschine, z.B. eine Luftdüsenwebmaschine mit einer Hauptdüse, für jeden Eintrag einen Längsabschnitt des Fadens ab, wobei die Stoppelemente S1, S2 in Zusammenarbeit den jeweils zum Abzug bestimmten Längsabschnitt bemessen, das zweite Stoppelement S2 den Abzug einleitet, und das erste Stoppelement S1 den Abzug beendet. Das Einleiten des Abzugs wird beispielsweise ausgelöst durch ein von der Webmaschine übertragenes Triggsignal.A thread not shown in FIG. 1 (indicated by Y in FIG. 2) extends from the winding element W to the storage surface 4 and is wound thereon in adjacent windings which move forward in the direction of the axis X parallel to one another and form a thread supply, which is temporarily stored on the winding body K. The weaving machine, not shown, for example an air-jet weaving machine with a main nozzle, draws a longitudinal section of the thread for each entry from this thread supply, the stop elements S1, S2 in cooperation dimension the longitudinal section intended for deduction, the second stop element S2 initiates the deduction, and the first stop element S1 ends the deduction. The triggering of the take-off is triggered, for example, by a trigger signal transmitted by the weaving machine.
Der Bewegungsablauf des ersten Stoppelementes S1 wird zunächst anhand der Kurve B erläutert. Das Stoppelement S1 wird durch seine Bewegungssteuerung zunächst im Wesentlichen radial zur Achse X zwischen einer Eingriffsstellung in den Fadenweg und in die Speicheroberfläche 4 und einer Freigabestellung außerhalb des Fadenwegs und außerhalb der Speicheroberfläche 4 bewegt, wobei die Eingriffsstellung entlang des Kurventeils 12 gehalten wird, während die Freigabestellung entlang des Kurventeils 9 gehalten wird. Zusätzlich wird das erste Stoppelement S1 auch in axialer Richtung bewegt, und zwar durch einen Antrieb der Antriebssteuerung entlang und in der Pfeilrichtung des Kurventeils 9, hingegen in der Pfeilrichtung und entlang des Kurventeils 12 durch die Windungen selbst. Bei einer nicht gezeigten Ausführungsform kann die Bewegungssteuerung des ersten Stoppelementes S1 auch einen Antrieb enthalten, der die Bewegung des ersten Stoppelements S1 entlang des Kurventeils 12 zwangssteuert. Zweckmäßig bewegt sich die Spitze des ersten Stoppelements S1 in der Eingriffsstellung in einer axialen Nut oder einem axialen Schlitz eines Stabes 3. Auch das zweite Stoppelement S2 greift dort ein. Dies soll ein Durchschlüpfen von Windungen vermeiden.The movement sequence of the first stop element S1 is first explained using curve B. The stop element S1 is initially moved essentially radially to the axis X between an engagement position in the thread path and in the storage surface 4 and a release position outside the thread path and outside the storage surface 4, the engagement position being held along the curve part 12 while the Release position is held along the curve part 9. In addition, the first stop element S1 is also moved in the axial direction, specifically by driving the drive control along and in the arrow direction of the curve part 9, but in the arrow direction and along the curve part 12 through the windings themselves. In one embodiment, not shown, the movement control can of the first stop element S1 also contain a drive which positively controls the movement of the first stop element S1 along the curve part 12. The tip of the first stop element S1 expediently moves in the engagement position in an axial groove or an axial slot of a rod 3. The second stop element S2 also engages there. This is to prevent loops from slipping through.
In der Eingriffsstellung des Stoppelements S1 wird diese in Pfeilrichtung zwischen einer Fadenbemessungslage 11 und einer Stopplage 7 bewegt, und zwar entweder durch die Windungen selbst oder durch einen nicht gezeigten Antrieb. In der Freigabestellung wird das Stoppelement S1 entlang des Kurventeils 9 von einem Ort 8 entsprechend der Stopplage 7 zu einem Ort 10 entsprechend der Fadenbemessungslage 11 bewegt, und zwar mittels eines Antriebs der Bewegungssteuerung. Aus der Stopplage 7 wird das Stoppelement S1 in Pfeilrichtung zum Ort 8 gezogen. Vom Ort 10 wird das Stoppelement S1 in Pfeilrichtung in die Fadenbemessungslage 11 geschoben. Der Bewegungsablauf (Kurve A) des zweiten Stoppelements S2 ist unterschiedlich, weil das zweite Stoppelement S1 im Wesentlichen nur radial zur Achse X hin- und herbewegt wird, und zwar zwischen einer Eingriffsstellung 7', in der es in den Fadenweg und die Speicheroberfläche 4 eingreift und einer Passivstellung 8', in der es aus der Speicheroberfläche 4 und vom Fadenweg zurückgezogen ist.In the engaged position of the stop element S1, it is moved in the direction of the arrow between a thread dimensioning layer 11 and a stop layer 7, either by the windings themselves or by a drive, not shown. In the release position, the stop element S1 is moved along the curve part 9 from a location 8 corresponding to the stop position 7 to a location 10 corresponding to the thread dimension position 11, by means of a drive of the movement control. The stop element S1 is pulled from the stop position 7 in the direction of the arrow to the location 8. The stop element S1 is pushed from the location 10 in the direction of the arrow into the thread dimensioning layer 11. The sequence of movements (curve A) of the second stop element S2 is different because the second stop element S1 is essentially only moved back and forth radially to the axis X, specifically between an engagement position 7 ′ in which it engages in the thread path and the storage surface 4 and a passive position 8 ', in which it is withdrawn from the storage surface 4 and from the thread path.
Bei der in Fig. 1 gezeigten Ausführungsform befinden sich die ersten zweiten Stoppelemente S1 , S2 im Wesentlichen in Richtung der Achse X hintereinander. Das zweite Stoppelement S2 könnte jedoch auch in Umfangsrichtung der Speicheroberfläche 4 gegenüber dem ersten Stoppelement S1 versetzt sein.In the embodiment shown in FIG. 1, the first second stop elements S1, S2 are essentially one behind the other in the direction of the axis X. However, the second stop element S2 could also be offset in the circumferential direction of the storage surface 4 with respect to the first stop element S1.
Die Bewegungen der beiden Stoppelemente S1 , S2 sind so aufeinander abgestimmt, dass das erste Stoppelement jeweils dann aus einer Stopplage 7 über den Ort 8 und entlang des Kurventeils 9 und den Ort 10 in die Fadenbemessungslage 11 bewegt wird, während das zweite Stoppelement S2 seine Eingriffsstellung T einnimmt. Das zweite Stoppelement S2 wird nur dann in seine Passivstellung 8' bewegt, wenn das erste Stoppelement S1 in seiner Eingriffsstellung entlang des Kurventeils 12 ist. Die Fadenbemessungslage 11 des ersten Stoppelements S1 ist so definiert, dass das erste Stoppelement S1 genau zwischen der letzten, für einen Abzug bestimmten Windung und der ersten, vom Wickelelement W gerade gebildeten Windung für den nächsten Abzug in den Fadenweg eingreift.The movements of the two stop elements S1, S2 are coordinated with one another such that the first stop element is then moved from a stop position 7 over location 8 and along curve part 9 and location 10 into thread dimensioning position 11, while second stop element S2 moves into its engaged position T occupies. The second stop element S2 is only moved into its passive position 8 ′ when the first stop element S1 is in its engagement position along the curve part 12. The thread dimensioning layer 11 of the first stop element S1 is defined such that the first stop element S1 engages in the thread path precisely between the last turn intended for a take-off and the first turn just formed by the winding element W for the next take-off.
Der Arbeitsablauf des Liefergeräts F von Fig. 1 wird anhand der Fig. 2 bis 6 erläutert. In der Arbeitsphase von Fig. 2 befindet sich das zweite Stoppelement S2 in seiner Eingriffsstellung 7', so dass der Faden Y, der sich über das Frontende des Speicherkörpers K hinwegerstreckt, gehalten wird. Stromauf des zweiten Stoppelements S2 liegen bereits Fadenwindungen vor. Das erste Stoppelement S2 ist in seiner Eingriffsstellung entlang des Kurventeils 12 und bewegt sich mit den fortlaufend aufgewickelten Windungen in Richtung zum zweiten Stoppelement S2. Der für einen Abzug bemessene Fadenabschnitt ist durch die zwischen den ersten und zweiten Stoppelementen S1 , S2 vorliegenden Windungen definiert. Stromauf des ersten Stoppelements S1 liegen ebenfalls bereits Windungen auf der Speicheroberfläche 4 vor. In der Arbeitsphase gemäß Fig. 2 wird von der Webmaschine ein Triggsignal abgegeben, weil ein Abzug einzuleiten ist. Das zweite Stoppelement S2 wird aus der Eingriffsstellung 7' von Fig. 2 in die Passivstellung 8' von Fig. 3 aus dem Fadenweg gezogen. Damit wird der Abzug eingeleitet und bewegt sich der Faden (Pfeil 14) in die Webmaschine. Die stromab des ersten Stoppelements S1 bereitgehaltenen Windungen werden abgespult. Dabei bewegt sich das erste Stoppelement S1 weiter entlang seines Kurventeils 12 und in axialer Richtung zum zweiten Stoppelement S2. Stromauf des ersten Stoppelements S1 werden weitere Windungen aufgewickelt.The work flow of the delivery device F of FIG. 1 is explained with reference to FIGS. 2 to 6. In the working phase of FIG. 2, the second stop element S2 is in its engagement position 7 ′, so that the thread Y, which extends over the front end of the storage body K, is held. Thread turns are already present upstream of the second stop element S2. The first stop element S2 is in its engagement position along the curve part 12 and moves with the continuously wound turns in the direction of the second stop element S2. The thread section dimensioned for a draw-off is defined by the turns present between the first and second stop elements S1, S2. Upstream of the first stop element S1 there are also windings on the storage surface 4. In the working phase according to FIG. 2, the loom emits a trigger signal because a take-off is to be initiated. The second stop element S2 is pulled from the engagement position 7 'of FIG. 2 into the passive position 8' of FIG. 3 from the thread path. With this, the take-off is initiated and the thread (arrow 14) moves into the weaving machine. The windings held ready downstream of the first stop element S1 are unwound. The first stop element S1 moves further along its curve part 12 and in the axial direction to the second stop element S2. Further turns are wound upstream of the first stop element S1.
Nachdem beim Abzug alle Windungen stromab des ersten Stoppelements S1 abgewickelt worden sind, erreicht das erste Stoppelement S1 seine Stopplage 7, beispielsweise an einem stationären Anschlag 13 (Fig. 4). Der Anschlag 13 kann im Speicherkörper oder außerhalb des Speicherkörpers oder auch in der Bewegungssteuerung des ersten Stoppelements S1 vorgesehen sein. Alternativ könnte der Anschlag 13 direkt von dem zweiten Stoppelement S2 gebildet werden. In der Arbeitsphase in Fig. 4 liegen stromauf des ersten Stoppelementes S1 noch weniger Windungen vor, als sie für einen Abzug benötigt werden. Sobald das ersten Stoppelement S1 seine Stopplage 7, beispielsweise am Anschlag 13 erreicht hat, ist der Abzug beendet.After all windings have been unwound downstream of the first stop element S1, the first stop element S1 reaches its stop position 7, for example at a stationary stop 13 (FIG. 4). The stop 13 can be provided in the storage body or outside the storage body or also in the movement control of the first stop element S1. Alternatively, the stop 13 could be formed directly by the second stop element S2. In the working phase in FIG. 4, there are even fewer turns upstream of the first stop element S1 than are required for a take-off. As soon as the first stop element S1 has reached its stop position 7, for example at the stop 13, the deduction has ended.
Mit dem Ende des Abzugs oder nacheilend zu diesem wird das zweite Stoppelement S2 aus seiner Passivstellung 8' wieder in seine Eingriffsstellung T (Fig. 5) verstellt. Das erste Stoppelement S1 wird aus seiner Stopplage 7 radial nach außen zum Ort 8 aus dem Fadenweg bewegt und gleich weiter entlang des Kurventeils 9 in Richtung zur Fadenbemessungslage. Dabei werden die stromauf des ersten Stoppelementes S1 vorliegenden Windungen an das zweite Stoppelement S2 transferiert. Das erste Stoppelement S1 wird über den Ort 10 wieder in die Fadenbemessungslage 11 verstellt (Fig. 6), und zwar genau hinter der letzten für den nächsten Abzug benötigten Windung und vor der ersten, aus dem Wickelelement W austretenden Windung für den weiteren Abzug. Mit dem Aufwickeln weiterer Windungen bewegt sich das erste Stoppelement S1 entlang des Kurventeils 12, bis wieder die Arbeitsphase gemäß Fig. 2 erreicht ist. Fig. 7 verdeutlicht in einem gestrichelten Bereich 25 der Speicheroberfläche 4 die möglichen Positionen des zweiten Stoppelementes S2, angedeutet durch Kreuze, in Relation zur Position des ersten Stoppelements S1 in der Stopplage 7. Dieser Bereich liegt innerhalb eines durch den Faden Y definierten Feldes. Ein Fadenabschnitt 26, der sich von der vordersten Windungen zum ersten Stoppelement S1 erstreckt, an diesem umgelenkt wird und weiter in axialer Richtung verläuft, definiert dieses in der Wickelrichtung 2 hinter dem ersten Stoppelement S1 liegende Feld. Die Position des zweiten Stoppelementes S2 sollte so nahe wie möglich an der Position des ersten Stoppelements S1 in der Stopplage 7 liegen, so dass die Fadenwindungen zuverlässig transferiert werden können. Dabei sind Positionen des zweiten Stoppelements S2 möglich, in denen dieses in axialer Richtung zwischen dem ersten Stoppelement S1 und dem Frontende des Speicherkörpers liegt, oder in Wickelrichtung 2 gegenüber diesem in Umfangsrichtung nach hinten versetzt ist.With the end of the trigger or after this, the second stop element S2 is shifted from its passive position 8 'back into its engagement position T (FIG. 5). The first stop element S1 is moved radially outward from its stop position 7 to the location 8 out of the thread path and immediately further along the curve part 9 in the direction of the thread dimensioning position. The windings present upstream of the first stop element S1 are transferred to the second stop element S2. The first stop element S1 is adjusted again via the location 10 into the thread dimensioning position 11 (FIG. 6), exactly behind the last turn required for the next draw-off and before the first turn emerging from the winding element W for the further draw-off. With the winding of further turns, the first stop element S1 moves along the curve part 12 until the working phase according to FIG. 2 is reached again. 7 shows in a dashed area 25 of the storage surface 4 the possible positions of the second stop element S2, indicated by crosses, in relation to the position of the first stop element S1 in the stop position 7. This area lies within a field defined by the thread Y. A thread section 26, which extends from the foremost windings to the first stop element S1, is deflected there and continues in the axial direction, defines this field lying behind the first stop element S1 in the winding direction 2. The position of the second stop element S2 should be as close as possible to the position of the first stop element S1 in the stop position 7, so that the thread turns can be transferred reliably. Positions of the second stop element S2 are possible, in which it lies in the axial direction between the first stop element S1 and the front end of the storage body, or in the winding direction 2 is offset to the rear in the circumferential direction.
Fig. 7 verdeutlicht gestrichelt den Bewegungsweg des ersten Stoppelements S1 zwischen dem Ort 10 und der Fadenbemessungslage 11 und der Stopplage 7.FIG. 7 shows in dashed lines the movement path of the first stop element S1 between the location 10 and the thread dimensioning layer 11 and the stop position 7.
Fig. 8 verdeutlicht schematisch eine Ausführungsform, bei der das zweite Stoppelement S2 in Abzugsrichtung direkt hinter dem ersten Stoppelement S1 positioniert ist, wenn das erste Stoppelement S1 seine Stopplage 7 erreicht hat. Zweckmäßig sind nur die Enden der Stoppelemente S1, S2 möglichst nahe beieinander, während sich ihr relativer Abstand voneinander mit zunehmendem Abstand von den Enden vergrößert. Beispielsweise ist dann das erste Stoppelement S1 schräg angestellt, während das zweite Stoppelement S2 mit einem Fadensteuerteil 22' abgekröpft ausgebildet ist. Die Stoppelemente S1, S2 könnten auch gegeneinander verschränkt sein, d.h., in einer Ansicht in Richtung der Achse X abweichend von einer rein radialen Orientierung auf die Achse X schräggestellt sein.8 schematically illustrates an embodiment in which the second stop element S2 is positioned directly behind the first stop element S1 in the pull-off direction when the first stop element S1 has reached its stop position 7. Only the ends of the stop elements S1, S2 are expediently as close as possible to one another, while their relative distance from one another increases with increasing distance from the ends. For example, the first stop element S1 is then inclined, while the second stop element S2 is cranked with a thread control part 22 '. The stop elements S1, S2 could also be interleaved with one another, i.e., in a view in the direction of the axis X, deviated from a purely radial orientation on the axis X.
Fig. 9 verdeutlicht schematisch eine stationäre Fadensteuereinrichtung 15 für das erste Stoppelement S1. Die Fadensteuereinrichtung 15 besitzt ein Gehäuse 16, in dem eine Magnetwicklung 17 und ein Eisenkern 18 enthalten sind. Ferner ist ein axial beweglicher Magnetanker 19 vorgesehen, wobei zwischen dem Eisenkern 18 und dem Magnetanker 19 eine Feder 20 angeordnet ist, die den Magnetanker 19 vom Eisen- kern 18 wegdrückt. Das Stoppelement S1 besteht aus einem ersten stiftförmigen Teil 21, der mit dem Magnetanker 19 verbunden ist, und einem ebenfalls stiftförmigen Fadensteuerteil 22, der über ein federndes Gelenk 23 mit dem ersten Teil 21 verbunden ist. Das federnde Gelenk 23 besteht beispielsweise aus einem Elastomer oder aus Gummi, z.B. auf Polyurethan, und erzeugt eine Vorspannung, die den Fadensteuerteil 22 zu einem beispielsweise angedeuteten Anschlag 24 hin beaufschlagt, der die gezeigte Fadenbemessungslage 11 für das erste Stoppelement S1 definiert. Beim Anschlag 24 könnte ein schwacher Permanentmagnet den Fadensteuerteil 22 vorübergehend halten. Im Gehäuse 16 ist ferner in der entgegengesetzten Bewegungsrichtung der Anschlag 13 vorgesehen, der einstellbar sein kann, um die Stopplage 7 des ersten Stoppelements S1 zu definieren. In Fig. 9 ist das Stoppelement S1 in seiner Eingriffsstellung durch die Wirkung der Feder 20 gehalten, und zwar in der Stopplage. Wird die Magnetspule 17 erregt, dann wird der Magnetanker 19 vom Eisenkern 18 gezogen und die Feder 20 zusammengedrückt, so dass das Stoppelement S1 in seine nicht gezeigte Freigabestellung gezogen wird.9 schematically illustrates a stationary thread control device 15 for the first stop element S1. The thread control device 15 has a housing 16 in which a magnetic winding 17 and an iron core 18 are contained. Furthermore, an axially movable magnet armature 19 is provided, a spring 20 being arranged between the iron core 18 and the magnet armature 19, which spring 20 separates the magnet armature 19 from the iron core 18 pushes away. The stop element S1 consists of a first pin-shaped part 21, which is connected to the magnet armature 19, and a likewise pin-shaped thread control part 22, which is connected to the first part 21 via a resilient joint 23. The resilient joint 23 consists, for example, of an elastomer or of rubber, for example on polyurethane, and generates a pretension which acts on the thread control part 22 towards an example indicated stop 24, which defines the thread dimensioning position 11 shown for the first stop element S1. At the stop 24, a weak permanent magnet could temporarily hold the thread control part 22. In the housing 16, the stop 13 is also provided in the opposite direction of movement, which can be adjustable to define the stop position 7 of the first stop element S1. 9, the stop element S1 is held in its engaged position by the action of the spring 20, specifically in the stop position. If the magnet coil 17 is excited, the magnet armature 19 is pulled from the iron core 18 and the spring 20 is compressed, so that the stop element S1 is pulled into its release position, not shown.
Anstelle eines nur in einer Richtung gegen Federkraft wirkenden Magneten könnte auch bidirektional betätigbarer Magnet oder eine Anordnung aus zwei gegensinnig arbeitenden Magneten zum Bewegen des ersten Stoppelementes S1 zwischen seinen Eingriffs- und Freigabestellungen benutzt werden. Im Fall einer zwangsgesteuerten Bewegung des Stoppelements S1 auch zwischen der Fadenbemessungslage 11 und der Stopplage 7 könnte ein ähnlicher, axial arbeitender Antrieb (nicht gezeigt) vorgesehen sein, der die axiale Bewegung des Fadensteuerteils 22 steuert, und gegebenenfalls auch die Rückstellbewegung in die Fadenbemessungslage ausführt. Dann könnte ein einfaches Gelenk anstelle des federnden Gelenks 23 vorgesehen sein.Instead of a magnet acting only in one direction against spring force, bidirectionally actuated magnet or an arrangement of two magnets working in opposite directions could also be used to move the first stop element S1 between its engagement and release positions. In the case of a positively controlled movement of the stop element S1 also between the thread dimensioning position 11 and the stop position 7, a similar, axially operating drive (not shown) could be provided, which controls the axial movement of the thread control part 22, and possibly also executes the return movement into the thread dimensioning position. A simple joint could then be provided instead of the resilient joint 23.
Die Bewegungssteuerung des zweiten Stoppelements S1 kann ähnlich der Bewegungssteuerung 15 in Fig. 9 sein, mit dem Unterschied, dass keine Bewegung des zweiten Stoppelements S2 in axialer Richtung des Speicherkörpers K erforderlich ist. Beispielsweise könnte der Magnetanker 10 direkt mit dem stiftförmigen zweiten Stoppelement S2 verbunden sein, um dieses im Wesentlichen radial bezüglich des Achse X hin- und herzubewegen. Die Antriebssteuerungen beider Stoppelemente S1 , S2 könnten in einem gemeinsamen Gehäuse zusammengefasst sein. Der Anschlag 13 könnte auch eine Dämpfung enthalten, um die Spannungsspitze im abgezogenen Faden zu mildern, wenn das erste Stoppelement S1 seine Stopplage 7 erreicht.The movement control of the second stop element S1 can be similar to the movement control 15 in FIG. 9, with the difference that no movement of the second stop element S2 in the axial direction of the storage body K is required. For example, the magnet armature 10 could be connected directly to the pin-shaped second stop element S2 in order to move it essentially radially back and forth with respect to the axis X. The drive controls of both stop elements S1, S2 could be combined in a common housing. The stop 13 could also contain a damping in order to alleviate the tension peak in the thread drawn off when the first stop element S1 reaches its stop position 7.
Die Bewegungen des ersten Stoppelements S1 werden zweckmäßig in Abhängigkeit von der Wickelbewegung des Wickelelements W gesteuert, während die Bewegungen des zweiten Stoppelements S2 beispielsweise abhängig von den Webtakten gesteuert werden. The movements of the first stop element S1 are expediently controlled as a function of the winding movement of the winding element W, while the movements of the second stop element S2 are controlled, for example, as a function of the weaving cycles.

Claims

Patentansprüche claims
1. Liefergerät (F) mit Fadenbemessungsfunktion für eine Webmaschine, mit einem drehantreibbaren Wickelorgan (W), einem stationären, kleindurchmessrigen Spei- cherköφer (K) mit einer Speicheroberfläche (4) zum Zwischenspeichern eines aus Richtung der Achse (X) des Speicherkörpers auf der Speicheroberfläche (4) geförderten Windungen bestehenden Fadenvorrats, aus dem intermittierend abgemessene Fadenabschnitte über das Frontende des Speicherköφers (4) abziehbar sind, einem in einer stationär außerhalb des Speicherkörpers angeordneten Bewegungssteuerung (15) vorgesehenen ersten stiftförmigen Stoppelement (S1), das relativ zur Speicheroberfläche (4) und zur Achse im Wesentlichen radial bewegbar ist zwischen einer den Faden freigebenden Vorbereitungs-Abzugsstellung (8) außerhalb der Speicheroberfläche und einer in den Fadenweg und die Speicheroberfläche eingreifenden Eingriffsstellung, und zusätzlich in der Eingriffsstellung im Wesentlichen axial zwischen einer Fadenbemessungslage (11) und einer den Fadenabzug beendenden Stopplage (7) verstellbar ist, und mit wenigstens einer zweiten, außerhalb des Speicherkörpers angeordneten, eine Bewegungssteuerung aufweisenden Fadensteuervorrichtung, mit der der Fadenabschnitt zum Abzug webtaktabhängig freigebbar ist, dadurch gekennzeichnet, dass1. Delivery device (F) with thread dimensioning function for a weaving machine, with a winding drive (W) which can be driven in rotation, a stationary, small-diameter storage body (K) with a storage surface (4) for temporarily storing one from the direction of the axis (X) of the storage body on the Storage surface (4) of existing turns of thread supply from which intermittently measured thread sections can be pulled off via the front end of the storage body (4), a first pin-shaped stop element (S1) provided in a stationary movement control (15) arranged outside the storage body, which is relative to the storage surface ( 4) and can be moved essentially radially with respect to the axis between a preparation pull-off position (8) releasing the thread outside the storage surface and an engagement position engaging in the thread path and the storage surface, and additionally in the engagement position essentially axially between a thread remover Solution position (11) and a stop position (7) ending the thread take-off is adjustable, and with at least one second thread control device, which is arranged outside the storage body and has a motion control and with which the thread section can be released for take-off depending on the weaving cycle, characterized in that
die zweite Fadensteuervorrichtung ein ausschließlich zumindest annähernd radial zur Achse (X) zwischen einer von der Speicheroberfläche (4) zurückgezogenen Passivstellung (8') und einer in die Speicheroberfläche eingreifenden Eingriffstellung (7') hin- und herbewegbares zweites Stoppelement (S2) aufweist, dessen Position in der Eingriffsstellung der Stopplage (7) des ersten Stoppelements (S1) derart zugeordnet ist, dass bei Bewegen des ersten Stoppelements (S1) aus der Stopplage (7) in die Abzugsvorbereitungsstellung (8) stromauf des ersten Stoppelements (S1) vorhandene Windungen an das zweite Stoppelement (S2) transferierbar sind und das erste Stoppelement (S1) in die Fadenbemessungsiage (11) verstellbar ist.the second thread control device has a second stop element (S2) which can be moved back and forth exclusively at least approximately radially to the axis (X) between a passive position (8 ') withdrawn from the storage surface (4) and an engaging position (7') engaging in the storage surface Position in the engaged position of the stop position (7) of the first stop element (S1) is assigned such that when the first stop element (S1) moves from the stop position (7) into the take-off preparation position (8) upstream of the first stop element (S1), there are windings the second stop element (S2) is transferable and the first stop element (S1) is adjustable in the thread dimensioning layer (11).
2. Liefergerät nach Anspruch 1, dadurch gekennzeichnet, dass die Position des zweiten Stoppelements der Stopplage (7) des ersten Stoppelements benachbart ist, vorzugsweise im Wesentlichen in Axialrichtung zwischen der Stopplage (7) des ersten Stoppelements und dem Frontende des Speicherköφers und/oder in Wickelrichtung (2) hinter dem in der Stopplage (7) angelangten ersten Stoppelement (S1) liegt.2. Delivery device according to claim 1, characterized in that the position of the second stop element of the stop position (7) of the first stop element is adjacent, preferably substantially in the axial direction between the stop position (7) of the first Stopping elements and the front end of the storage body and / or in the winding direction (2) behind the first stop element (S1) which has reached the stop position (7).
3. Liefergerät nach Anspruch 1, dadurch gekennzeichnet, dass das erste Stoppelement (S1) in der Stopplage (7) im Wesentlichen unmittelbar angrenzt an das in die Eingriffsstellung (7') bewegte zweite Stoppelement (S2), ggfs. sogar an diesem anliegt.3. Delivery device according to claim 1, characterized in that the first stop element (S1) in the stop position (7) substantially immediately adjacent to the second stop element (S2) moved into the engagement position (7 '), possibly even against it.
4. Liefergerät nach Anspruch 1 , dadurch gekennzeichnet, dass die Bewegungssteuerung der ersten und zweiten Stoppelemente (S1 , S2) derart ausgebildet und aufeinander abgestimmt sind, dass jeder Abzug durch Bewegen des zweiten Stoppelements aus der Eingriffsstellung (7') in die Passivstellung (8') einleitbar und vom ersten Stoppelement (S1) in der Stopplage (7) beendbar ist, und dass das erste Stoppelement (S1) nach dem Windungstransfer in die Fadenbemessungslage (11) verstellbar ist, ehe das zweite Stoppelement aus der Eingriffsstellung (7') bewegbar ist.4. Delivery device according to claim 1, characterized in that the movement control of the first and second stop elements (S1, S2) are designed and coordinated with one another such that each trigger by moving the second stop element from the engagement position (7 ') into the passive position (8 ') can be introduced and terminated by the first stop element (S1) in the stop position (7), and that the first stop element (S1) can be adjusted after the winding transfer into the thread dimensioning position (11) before the second stop element from the engaged position (7') is movable.
5. Liefergerät nach Anspruch 1, dadurch gekennzeichnet, dass das erste Stoppelement (S1) in seiner Eingriffsstellung durch die Windungen aus der Fadenbemessungslage (11) in die Stopplage (7) bewegbar ist.5. Delivery device according to claim 1, characterized in that the first stop element (S1) in its engagement position through the turns from the thread dimensioning position (11) in the stop position (7) is movable.
6. Liefergerät nach Anspruch 1, dadurch gekennzeichnet, dass das erste Stoppelement (S1) in der Eingriffsstellung aus der Fadenbemessungslage (11) durch einen in der Bewegungssteuerung (15) vorgesehenen Antrieb zwangsweise in die Stopplage (7) bewegbar ist.6. Delivery device according to claim 1, characterized in that the first stop element (S1) in the engagement position from the thread dimensioning position (11) by means of a movement control (15) provided drive is forcibly movable into the stop position (7).
7. Liefergerät nach Anspruch 1 , dadurch gekennzeichnet, dass der Speicherkörper (K) einen Durchmesser (d) zwischen etwa 25 und etwa 60 mm, vorzugsweise zwischen etwa 30 und etwa 45 mm, aufweist, der, vorzugsweise, variabel ist.7. Delivery device according to claim 1, characterized in that the storage body (K) has a diameter (d) between approximately 25 and approximately 60 mm, preferably between approximately 30 and approximately 45 mm, which, preferably, is variable.
8. Liefergerät nach Anspruch 1 , dadurch gekennzeichnet, dass die ersten und zweiten Stoppelemente (S1, S2) in der Stopplage (7) des ersten Stoppelements (S1) und der Eingriffsstellung (7') des zweiten Stoppelements (S2) mit ihren in die Speicheroberfläche (4) eingreifenden Enden näher zueinander positioniert sind als im Abstand von den Enden, vorzugsweise durch eine verschränkte, abgekröpfte oder winkelige Relativanordnung der Stoppelemente. 8. Delivery device according to claim 1, characterized in that the first and second stop elements (S1, S2) in the stop position (7) of the first stop element (S1) and the engagement position (7 ') of the second stop element (S2) with their in Storage surface (4) engaging ends are positioned closer to each other than at a distance from the ends, preferably by an entangled, cranked or angled relative arrangement of the stop elements.
EP03789021A 2002-11-12 2003-11-10 Supply device Expired - Fee Related EP1562847B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2002152604 DE10252604A1 (en) 2002-11-12 2002-11-12 Weft yarn feed unit, for a jet loom, has neighboring stop tines at the yarn store body to give a controlled take-off in measured lengths in a trouble-free intermittent control action
DE10252604 2002-11-12
PCT/EP2003/012528 WO2004044294A2 (en) 2002-11-12 2003-11-10 Supply device

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EP1562847A2 true EP1562847A2 (en) 2005-08-17
EP1562847B1 EP1562847B1 (en) 2006-09-27

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AU (1) AU2003293669A1 (en)
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CN102251339B (en) * 2011-07-21 2013-04-17 北京经纬纺机新技术有限公司 Yarn stop pin controller for air-jet loom and control method thereof
BE1021875B1 (en) * 2014-05-09 2016-01-25 Picanol WIRE FEEDING DEVICE WITH WRAP DRUM.

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DE4127798A1 (en) * 1991-08-22 1993-02-25 Iro Ab MEASURING TOURIST
IT1256898B (en) * 1992-07-27 1995-12-27 Lgl Electronics Spa IMPROVEMENT OF WEFT FEEDERS FOR AIR FRAMES.
EP0699790B1 (en) * 1994-07-19 2000-01-19 L.G.L. ELECTRONICS S.p.A. Thread arrester for weft feeders for air-jet looms
DE19706288A1 (en) * 1997-02-18 1998-08-20 Iro Ab Measuring delivery device
IT1303155B1 (en) * 1998-07-17 2000-10-30 Lgl Electronics Spa IMPROVEMENT OF THE YARN STOP DEVICES, IN THE PRE-MEASURING ROTARY EQUIPMENT FOR AIR WEAVING FRAMES.
WO2002033156A1 (en) * 2000-10-18 2002-04-25 Iropa Ag Supply device

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WO2004044294A3 (en) 2004-07-22
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WO2004044294A2 (en) 2004-05-27
AU2003293669A1 (en) 2004-06-03
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DE10252604A1 (en) 2004-05-27
CN100500539C (en) 2009-06-17

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