EP1562847B1 - Liefergerät - Google Patents

Liefergerät Download PDF

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Publication number
EP1562847B1
EP1562847B1 EP03789021A EP03789021A EP1562847B1 EP 1562847 B1 EP1562847 B1 EP 1562847B1 EP 03789021 A EP03789021 A EP 03789021A EP 03789021 A EP03789021 A EP 03789021A EP 1562847 B1 EP1562847 B1 EP 1562847B1
Authority
EP
European Patent Office
Prior art keywords
stop element
stop
yarn
storage body
feeder
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.)
Expired - Fee Related
Application number
EP03789021A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1562847A2 (de
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/de
Application granted granted Critical
Publication of EP1562847B1 publication Critical patent/EP1562847B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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 take-off direction of the thread longitudinal sections.
  • the storage body is assigned two pin-shaped stop elements which are alternately moved axially and radially in order to initiate or terminate the respective withdrawal and to dimension the thread longitudinal sections.
  • one stop member transfers turns representing a measured longitudinal section to the other stop element.
  • both stop elements operate outside of the storage body. The turn transfers necessarily mean nonuniformities 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.
  • a controlled thread clamp is provided in order to initiate the respective withdrawal.
  • the mechanical drive controls 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 be operated at high winding speed, there is too little installation space for mechanical drives in the storage body, and impractically high drive powers would be required because of the power losses in the mechanical transmissions.
  • the invention has for its object to provide a delivery device of the type mentioned with a short flight times and high entry frequencies, small diameter Specify storage body that allows a uniform and therefore low-interference intermittent thread control, the structural complexity in the movement controls the stop elements should be low.
  • the second, pin-shaped stop element needs to be moved only substantially radially to the axis of the storage body to initiate a trigger
  • a structurally simple and fast motion control can be used for the second stop element.
  • the movement control of the first stop element can also be designed simply because the first stop element does not initiate a trigger, but only to dimension the thread longitudinal section and to finish the trigger. Since the second stopper initiates each trigger at the same axial position of the storage surface, and the first stopper terminates the trigger near the second stopper, a uniform intermittent thread control results. A thread clamp downstream of the storage body can be omitted, which could have undesirable effects on the thread control. If turns when transferring to the second stop element perform any axial movement in the withdrawal direction, a possible trailing movement of the free end of the thread in the entry device of the loom remains negligibly small because of the small diameter storage body.
  • the two stop elements are arranged relative to one another such that the first stop element transfers turns to the second stop element without significant trailing movement in the yarn 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 directly taken over 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 sizing position.
  • the second stop element is 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 beside the Stopplage of the first stop element.
  • the second stop element is positioned as close to the stop position of the first stop element, as the structural possibilities allow.
  • the first stop element in the stop pest expediently adjoins the second stop element which is moved into the engagement position substantially directly.
  • 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 then to be able to cling 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 trigger.
  • the second stop element stops after completion of a trigger thread, while the first stop element performs its thread sizing function and moves toward the stop position.
  • the second stop element is moved from its engagement position into the passive position only substantially radially, after, for example, a trigger signal has been issued by the loom. Due to the further winding of turns and / or by a forced movement and / or by the growing tensile force towards the end of the trigger, the first stop element enters the stop position in which it terminates the trigger while the second stop element remains in its passive position.
  • the second stop element At the end of the trigger or a bit trailing the second stop element is brought back into its engaged position and the first stop element from the stop pest in the release position and also immediately moved back towards the thread trimming position to perform the next thread trimming function. This process follows harmoniously.
  • the first stop element In order to influence the turns of thread 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 engaged position from the thread sizing position to the stop position by the thread windings themselves. This movement is very rapid due to the high winding speed on the small diameter storage body.
  • a drive in the motion controller may control this movement of the first stop element from the suture level to the stop level, for example, to precisely define the time of the end of the siphon.
  • the storage body should only have a diameter between about 25 and about 60 mm, preferably between about 30 and 45 mm, the diameter, preferably, should be variable in order to make an adjustment to the weaving width can.
  • a delivery device F (FIG. 1) with thread sizing function for a weaving machine (not shown) has a stationary support 1 on which a storage body K is arranged.
  • the storage body K is similar, for example, to a rod cage with axially extending rods 3, the outer surfaces of which define an approximately cylindrical storage surface 4, which preferably tapers to the right in FIG.
  • the rods 3 are mounted with foot parts 5 on the carrier 1 so that they can be radially adjusted in a certain area (Radialverstellvorraumen 6) 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 about between 25 and 60 mm, preferably about 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 for example, a Auslassinate carrying a winding tube which is connected to a hollow drive shaft, not shown.
  • the winding body K is associated with a first and a second, each pin-shaped stop element S1, S2.
  • Each stop element S1, S2 is arranged in a stationary motion control, not shown in FIG. 1, wherein the two motion controls are optionally combined in a housing.
  • the stop elements S1, S2 are cyclically moved as indicated by the curves A, B, e.g. depending on the rotational movement of the winding element W and / or the working cycles of the loom.
  • the stop elements S1, S2 are moved in planes that are oriented substantially radially to the axis X.
  • a yarn (not shown in FIG. 1) (shown in FIG. 2 as Y) extends from the winding element W to the storage surface 4 and is wound thereon in side-by-side windings which move forward parallel to one another in the direction of the axis X and form a yarn supply. which is temporarily stored on the winding body K.
  • the weaving machine not shown, eg an air jet loom with a main nozzle, pulls off a longitudinal section of the thread for each entry, the stop elements S1, S2 cooperating dimensioned for each deduction longitudinal section, the second stop element S2 initiates the trigger, and the first stop S1 terminates the trigger. Initiation of the trigger is triggered, for example, by a trigger signal transmitted by the loom.
  • the sequence of movement of the first stop element S1 is first explained with reference to the curve B.
  • the stop element S1 is first moved by its movement control substantially radially to the axis X between an engaged 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, wherein the engagement position is held along the cam member 12, while the Release position along the curve part 9 is held.
  • the first stopper member S1 is also moved in the axial direction by driving the drive controller along and in the arrow direction of the cam member 9, but in the arrow direction and along the cam member 12 by the coils themselves.
  • the motion control of the first stop element S1 also contain a drive which forcibly controls the movement of the first stop element S1 along the cam part 12.
  • the tip of the first stop element S1 moves in the engaged position in an axial groove or an axial slot of a rod 3.
  • the second stop element S2 engages there. This is to avoid slipping of turns.
  • the stop member S1 In the engaged position of the stop element S1, this is moved in the direction of the arrow between a thread trimming position 11 and a stop ply 7, either by the windings themselves or by a drive, not shown.
  • the stop member S1 In the release position, the stop member S1 is moved along the cam member 9 from a location 8 corresponding to the stop ply 7 to a location 10 corresponding to the thread trimming layer 11, by means of a drive of the motion control. From the stop position 7, the stop element S1 is pulled in the direction of the arrow to the location 8. From the location 10, the stop element S1 is pushed in the direction of the arrow into the thread trimming layer 11.
  • the movement sequence (curve A) of the second stop element S2 is different, because the second stop element S2 is moved back and forth essentially only 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 the thread path.
  • first and second stop elements S1, S2 are located substantially 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 ply 7 via the location 8 and along the curve part 9 and the location 10 into the thread trimming layer 11, while the second stop element S2 is in its engaged position 7 'occupies.
  • the second stop element S2 is only moved into its passive position 8 'when the first stop element S1 is in its engaged position along the cam part 12.
  • the thread trimming layer 11 of the first stop element S1 is defined such that the first stop element S1 engages exactly between the last turn intended for a trigger and the first turn just formed by the winding element W for the next take-off in the thread path.
  • the second stop element S2 is in its engaged position 7 ', so that the yarn Y, which extends beyond the front end of the storage body K, is held. Upstream of the second Stoppelements S2 are already present thread turns.
  • the first stop element S2 is in its engaged 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 trigger is defined by the turns present between the first and second stop elements S1, S2. Upstream of the first stop element S1 are already already windings on the storage surface 4 before.
  • a trigger signal is emitted by the weaving machine, because a withdrawal has to be initiated.
  • the second stop element S2 is pulled from the engagement position 7 'of Fig. 2 in the passive position 8' of Fig. 3 from the thread path.
  • the trigger is initiated and moves the thread (arrow 14) in the loom.
  • the turns stored downstream of the first stop element S1 are unwound. In this case, the first stop element S1 continues to move along its curve part 12 and in the axial direction to the second stop element S2. Upstream of the first stop element S1 further turns are wound up.
  • the first stop element S1 After all windings have been unwound downstream of the first stop element S1 during the withdrawal, the first stop element S1 reaches its stop ply 7, for example on a stationary stop 13 (FIG. 4).
  • the stop 13 may be provided in the storage body or outside the storage body or in the movement control of the first stop element S1. Alternatively, the stop 13 could be formed directly from the second stop element S2.
  • upstream of the first stop element S1 there are even fewer turns than are required for a trigger. As soon as the first stop element S1 has reached its stop ply 7, for example at the stop 13, the trigger is terminated.
  • the second stop element S2 With the end of the deduction or trailing to this, the second stop element S2 from its passive position 8 'again in its engaged position 7' (Fig. 5) adjusted.
  • the first stop element S1 is moved from its stop position 7 radially outward to the location 8 from the thread path and the same further along the curve part 9 in the direction of the thread sizing position.
  • the turns present upstream of the first stop element S1 are transferred to the second stop element S2.
  • the first stop element S1 is moved back into the thread trimming layer 11 via the location 10 (FIG. 6), precisely behind the last loop required for the next take-off and before the first loop leaving the winding element W for the further trigger. With the winding up 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.
  • FIG. 7 illustrates in a dashed region 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 ply 7.
  • This region lies within a field defined by the yarn Y.
  • a thread section 26, which extends from the foremost turns to the first stop element S1, is deflected at the latter and extends further in the axial direction, defines this field lying in the winding direction 2 behind the first stop element S1.
  • 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 ply 7, so that the thread windings can be reliably transferred.
  • positions of the second stop element S2 are possible, in which this is located in the axial direction between the first stop element S1 and the front end of the storage body, or is offset in the winding direction 2 with respect to this in the circumferential direction to the rear.
  • FIG. 7 illustrates in dashed lines the movement path of the first stop element S1 between the location 10 and the thread sizing layer 11 and the stop ply 7.
  • FIG. 8 schematically illustrates an embodiment in which the second stop element S2 is positioned in the withdrawal direction directly behind the first stop element S1 when the first stop element S1 has reached its stop ply 7.
  • the ends of the stop elements S1, S2 are as close to each other as possible, while their relative distance increases with increasing distance from the ends.
  • the first stop element S1 is employed obliquely, while the second stop element S2 is formed with a thread control part 22 'bent.
  • the stop elements S1, S2 could also be mutually entangled, that is, be inclined in a view in the direction of the axis X deviating from a purely radial orientation on the axis X.
  • FIG. 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 magnet winding 17 and an iron core 18 are contained. Further, an axially movable armature 19 is provided, wherein between the iron core 18 and the armature 19, a spring 20 is arranged, which is the armature 19 of the iron core 18 pushes away.
  • the stop element S1 consists of a first pin-shaped part 21, which is connected to the armature 19, and a likewise pin-shaped thread control part 22 which is connected via a resilient joint 23 with the first part 21.
  • the resilient joint 23 consists for example of an elastomer or of rubber, for example on polyurethane, and generates a bias that acts on the thread control member 22 to an example indicated stop 24 down, which defines the thread trimming position 11 shown for the first stop element S1.
  • a weak permanent magnet could temporarily hold the thread control member 22.
  • the stop 13 is further provided in the opposite direction of movement, which can be adjustable to define the stop puddle 7 of the first stop element S1.
  • the stop member S1 is held in its engaged position by the action of the spring 20, in the stop position.
  • the solenoid 17 When the solenoid 17 is energized, the armature 19 is pulled by the iron core 18 and the spring 20 is compressed, so that the stopper S1 is pulled to its release position, not shown.
  • bidirectionally actuable 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 optionally also executes the return movement into the thread trimming position.
  • a simple joint could be provided instead of the resilient joint 23.
  • the movement control of the second stop element S1 may 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 armature 10 could be connected directly to the pin-shaped second stop element S2 to reciprocate it substantially radially 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 include a damping to mitigate the voltage peak in the withdrawn thread when the first stop element S1 reaches its stop ply 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)
EP03789021A 2002-11-12 2003-11-10 Liefergerät Expired - Fee Related EP1562847B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2002152604 DE10252604A1 (de) 2002-11-12 2002-11-12 Liefergerät
DE10252604 2002-11-12
PCT/EP2003/012528 WO2004044294A2 (de) 2002-11-12 2003-11-10 Liefergerät

Publications (2)

Publication Number Publication Date
EP1562847A2 EP1562847A2 (de) 2005-08-17
EP1562847B1 true EP1562847B1 (de) 2006-09-27

Family

ID=32185536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03789021A Expired - Fee Related EP1562847B1 (de) 2002-11-12 2003-11-10 Liefergerät

Country Status (5)

Country Link
EP (1) EP1562847B1 (zh)
CN (1) CN100500539C (zh)
AU (1) AU2003293669A1 (zh)
DE (2) DE10252604A1 (zh)
WO (1) WO2004044294A2 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102251339B (zh) * 2011-07-21 2013-04-17 北京经纬纺机新技术有限公司 喷气织机止纱销控制器及其控制方法
BE1021875B1 (nl) * 2014-05-09 2016-01-25 Picanol Draadtoevoerinrichting met wikkeltrommel.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4127798A1 (de) * 1991-08-22 1993-02-25 Iro Ab Messfournisseur
IT1256898B (it) * 1992-07-27 1995-12-27 Lgl Electronics Spa Perfezionamento agli alimentatori di trama per telai ad aria.
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 (de) * 1997-02-18 1998-08-20 Iro Ab Meßliefergerät
IT1303155B1 (it) * 1998-07-17 2000-10-30 Lgl Electronics Spa Perfezionamento ai dispositivi di arresto del filato, negli apparecchiporgitrama premisuratori per telai di tessitura ad aria.
US6983771B2 (en) * 2000-10-18 2006-01-10 Iropa Ag Feeding device

Also Published As

Publication number Publication date
AU2003293669A1 (en) 2004-06-03
CN100500539C (zh) 2009-06-17
DE10252604A1 (de) 2004-05-27
WO2004044294A3 (de) 2004-07-22
CN1735549A (zh) 2006-02-15
DE50305203D1 (de) 2006-11-09
WO2004044294A2 (de) 2004-05-27
EP1562847A2 (de) 2005-08-17
AU2003293669A8 (en) 2004-06-03

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