EP1047819B1 - Fadenliefergerät - Google Patents

Fadenliefergerät Download PDF

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Publication number
EP1047819B1
EP1047819B1 EP98966967A EP98966967A EP1047819B1 EP 1047819 B1 EP1047819 B1 EP 1047819B1 EP 98966967 A EP98966967 A EP 98966967A EP 98966967 A EP98966967 A EP 98966967A EP 1047819 B1 EP1047819 B1 EP 1047819B1
Authority
EP
European Patent Office
Prior art keywords
feeler
feeding device
feeler arm
yarn feeding
sensor
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 - Lifetime
Application number
EP98966967A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1047819A2 (de
Inventor
Patrik Jonas Magnusson
Pär JOSEFFSON
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 EP1047819A2 publication Critical patent/EP1047819A2/de
Application granted granted Critical
Publication of EP1047819B1 publication Critical patent/EP1047819B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
    • B65H2601/524—Vibration

Definitions

  • the invention relates to a thread delivery device which in the preamble of claim 1 specified type.
  • a thread delivery device with such a sensor device is from the operating and Maintenance instructions IWF 9 007, IWF 9 107, IWF 9 207 from IRO AB, with the reference number 07-8930-0812-01 / 9647, pp. 10, 43, 44, 50, 51 and 53.
  • the Sensor device are two sensor arms one above the other and arranged such that their feeler feet the thread supply on two in the feed direction of the thread turns places in succession on the storage drum for presence or absence scan.
  • Each sensor arm is designed as a two-legged wire bracket, whose cranked sensor base protrudes downwards from the sensor housing.
  • the invention has for its object a yarn delivery device of the aforementioned To create kind that by a compact sensor device with few Individual parts and a precise, yet insensitive response distinguished. This task is for a thread delivery device with only one sensor arm as well as with several sensor arms.
  • the scanning device for the respective sensor arm and also the spring arrangement, which acts on the sensor arm in the direction of its basic position, on the same Side of the bearing are integrated into the sensor housing like the sensor foot supporting feeler arm part, becomes more significant in the direction of the axis of the storage drum Construction space saved. Furthermore, the number of individual parts required is reduced the sensor device noticeable. Transversely to the axis of the storage drum is also Space is saved because the individual, cooperating parts are arranged closely together to let. This is particularly advantageous if the sensor device has several Sensor arms and a corresponding number of accessories. thanks The compact arrangement prevents harmful vibrations, so that a stable and sensitive response can be achieved.
  • the number of items can be in a small space according to claim 2 reduce that each feeler arm part directly with its sensing device and spring assembly cooperates, i.e. without the need for additional motion-transmitting Accessories.
  • the sensor arm part is already with the actuator and the stop trained to work with his scanner and spring assembly needed. This has manufacturing advantages.
  • the emergence of harmful parasitic is structurally simple Avoided vibrations that could influence the response behavior.
  • the spring element does not only have the task, regardless of the installation position the thread delivery device the load on the sensor arm in the direction of its basic position to generate, but in addition and without any significant additional construction work the development of oscillating oscillating movements of the sensor arm under unfavorable Operating states, if necessary, to dampen as they arise. Is achieved this is achieved by spring hardening in a range of motion that is dependent on the stroke of the sensor arm, in which it is outside the actual scanning the presence or absence of the thread supply due to the work dynamics can. The resulting damping prevents an undesirable rocking effect, without working the sensor arm when sensing presence or absence of the thread. Conversely, this damping effect improves the correct working of the sensor arm within its actual working area. This damping effect is also advantageous if the respective scanning device on the the sensor foot facing away from the storage is provided.
  • the suspension of the sensor arm and the aforementioned Damping accomplished in a structurally simple manner.
  • the onset of damping can be adjusted as required, expediently from an easily accessible location outside the sensor housing.
  • an optodetector is used for scanning which is high Operational safety is inexpensive and works precisely.
  • the optodetector can be in place the compact sensor device protected.
  • an optodetector is only one way to pick up the working movements of the sensor arm.
  • a contactless inductive, electrical or electromagnetic, pneumatic detector or a contact-sensitive switch can be used.
  • the output signals of the scanning device are advantageously used for Control of the drive of the thread delivery device or for error monitoring in the thread delivery device or a thread processing system, of which the thread delivery device is a component.
  • the actuator of the scanning device is integrated in the sensor arm part. It takes on an additional function by changing the end position of the sensor arm part certainly.
  • a very clean signal transition of the scanning device achieved in a structurally simple manner because the cover edge with the cover surface can overlap, and then reliably interrupts the beam path.
  • Cooperation between the cover edge and the cover surface creates with others Words a quick transition between full shade and none at all Shading of the beam path, which simplifies the signal evaluation and the electronic effort required for signal evaluation can be reduced.
  • This scissor-like cutting and releasing the beam path is also useful if the scanning device is not on the side of the sensor foot, but on the side of the bearing of the sensor arm facing away from the sensor foot is provided.
  • the aforementioned goal is structurally particularly simple reached.
  • the response behavior of the sensor device is thereby improved that the guide arm part in the guided guide fork or at least against lateral evasive movements is supported. In this way, lateral vibrations of the Steam off the guide arm part as it arises.
  • the optodetector is favorable in terms of production and assembly technology with its holder on a board e.g. in the sensor housing or on another Control board arranged.
  • the board can take on an additional function by it forms a cover of the inside of the sensor housing to the outside and possibly even serves as a stroke limiter for the sensor arm.
  • the passage opening for the sensor base can be small, so that dirt hardly penetrates or simple additional measures are sufficient to prevent the ingress of dirt to avoid reliably.
  • the sensing arm part is a plastic molded part, who sits on the axis forming the bearing and relative to it is pivotable.
  • the sensor foot is only inserted into and in the jack positioned, appropriately adjustable, so that the basic position of the sensor arm can be accomplished solely by adjusting the sensor base in the socket. This principle is also useful if the scanning device on the Sensor foot facing away from the storage is provided.
  • a sensor device with at least two sensor arms the number of individual parts and the installation space reduced because all sensor arms have one have common axis, and because the spring elements or the only all Spring element acting on sensor arms can be accommodated in a space-saving manner. It is it is important if the switching device for damping no other components needed because the same spring element is used for the damping function, which is also used for the loading of the sensor arm towards its basic position is.
  • a common axis or shaft is particularly advantageous whenever if the sensor device contains a plurality of sensor arms which hold the thread at different points Scan the positions of the storage drum regardless of how the scanning device is designed and / or whether the scanning devices are attached on the side of the sensor feet or on the other side of the common axis.
  • the sensor feet are identical molded parts made of metal. This is favorable in terms of production technology, because it is used for different functions Sensor arms of the same sensor device, the same sensor foot can be used.
  • the continuous surface of the feeler foot, with which it rests on the thread, prevents extraordinarily effective that feared in the form of open stirrups with conventional feeler feet Collecting contaminants such as lint. This is especially so important if the feeler foot belongs to a so-called thread break sensor, which on The winding end of the thread supply rests practically permanently on the thread supply and does not make evasive movements with them during normal operation he could lose collected fluff or a fluff tail.
  • a thread delivery device F shown only in fragmentary form, for example a weft delivery device for a weaving machine, a winding element 1 one Storage drum 2 indicated, the one with the housing or not shown associated with a housing arm, not shown, connected to sensor device S. is.
  • three sensor arms A are provided, which are extend approximately parallel to each other in the direction of the axis of the storage drum 2 and a thread supply V consisting of turns of a thread Y on the Monitor storage drum 2.
  • the thread supply V is a relative rotary movement between the winding member 1 and the storage drum 2 (in the present Case of a stationary storage drum 2) formed with an axailen size that automatically is controlled in spite of continuous or intermittent thread consumption to avoid emptying the storage drum 2.
  • the thread supply V spills over a longitudinal recess 3 in the storage drum 2.
  • feeler feet 8a to 8c each of which is spring-loaded in one Basic position is durable, in which he, expediently without contact, in the recess 3 engages and through the thread supply V from the basic position in FIG. 1 is shiftable upwards.
  • the left sensor foot 8a in FIG. 1 can be a thread break monitor belong who responds as soon as the first turns of the thread supply V fail to appear.
  • the sensor base 8b can belong to a minimum sensor that the The minimum permissible axial size of the thread supply V is monitored and in the absence of the thread supply V in this area activates the drive of the winding member 1, to supplement the thread supply V.
  • the feeler foot 8c belongs to one, for example the so-called maximum sensor, which when shifting from that shown in FIG. 1 Home position turns off or delays the drive of the take-up member 1 when the permissible maximum size of the thread supply is reached.
  • Each sensor arm A consists of a sensor arm part 7a to 7c and the sensor foot 8a to 8c. These two components can be manufactured separately and then together be connected to form the respective sensor arm A. All three sensor arms are A pivoted on a common axis 5 in a sensor housing 6, wherein the axis 5 extends approximately transversely to the direction of the axis of the storage drum 2. Alternatively, it would be possible to have the axis 5 parallel to the axis of the storage body Arrange 2, and the sensor arm parts A transverse to the axis of the storage drum 2 to orientate.
  • a spring arrangement B is provided, which is a switching device D is assigned.
  • the sensor housing 6 is, for example, in a boom 4 of the thread delivery device housing, not shown.
  • Each sensor arm A is one Assigned scanning device T, which depends on the respective pivot position of the Sensor arm at least one signal for an associated monitoring or control device generated.
  • the scanning device T can be an optoelectronic, electrical, electronic or electromagnetic detector can be assigned to the Touch position of the associated sensor arm A without contact, or on electrical switch that can be actuated by the sensor arm.
  • the spring arrangement B and the scanning devices T are arranged on the same side of the axis 5 like the sensor arm parts 7a to 7c carrying the sensor feet 8a to 8c. Lying there the scanning devices T below and the spring arrangement B above the sensor arm parts 7a to 7c.
  • each sensor arm part 7a to 7c is a molded part, e.g. made of plastic (injection molded part), is in which a jack 9 for the sensor base 8a to 8c, a stop 14 for the Spring arrangement B and an actuator 13 for the scanning device T structurally integrated are.
  • the sensor device S more or less than the three sensor arms A shown.
  • the sensor feet 8a to 8c are identical in the embodiment shown.
  • everybody Feet base 8a to 8c is, for example, a molded metal part, e.g. a die-cast part, with a a continuous surface 10 defining toe and two approximately parallel and spaced legs 11, one leg 11 in the respective Socket 9 of a sensor arm part 7a to 7c inserted and, if necessary, therein is secured in position by means of a securing element 20.
  • the other leg 11 ends freely or is shortened to the required length.
  • the width of each Sensor foot 8a to 8c is larger than the distance between adjacent sensor arm parts 7a to 7c, made possible by a lateral displacement of the jack 9 of the Sensor arm part 7b. If necessary, the jacks 9 are on the sensor arm parts 7a to 7c adjustable in the longitudinal direction to the relative positions of the feeler feet To be able to set 8a to 8c.
  • a stationary guide fork 12 is assigned to each sensor arm part 7a to 7c, between the prongs of the sensor arm part 7a to 7c out or at least on a side Evasion is prevented.
  • the stops 14 on the sensor arm parts 7a to 7c are at the same distance from the axis 5 and have rounded tops Surfaces 15 which bear against spring elements 16a to 16c of the spring arrangement E. and absorb the pressure of these spring elements to each sensor foot 8a to 8c in its basic position (see the right sensor foot 8c in FIG. 2) is elastically yielding hold until it is displaced from the basic position by the lifting force of the thread Y.
  • the spring elements 16a to 16c shown in FIG. 2 suitably belong to one single spring element, which is anchored at 17 in the sensor housing 6.
  • the Spring elements 16a to 16c are spiral springs, expediently leaf springs, which are free protrude.
  • the switching device D contains one for each spring element 16a to 16c individually adjustable steaming extension 18, e.g. a screw from outside of the sensor housing S accessible and on a contact area 19 with the associated Spring element 16a to 16c is aligned.
  • the spring elements 16a to 16c do not get into the sensor feet 8a to 8c Contact with the damping projection 18. Only if due to excessive dynamics If there is a larger stroke of sensor arm A, its spring element arrives 16a to 16c against the damping projection 18. Since its contact area 19, for example is on the side of the surface 15 facing away from the anchoring 17, hardens then the spring element 16a to 16c clearly, causing the swinging movement sensor arm A is immediately dampened and this returns to its normal working range is pushed back.
  • the scanning devices T are arranged on a circuit board P, for example Have through openings 32 for the legs 11 of the sensor feet 8a to 8c can and conductors and possibly other electrical or electronic Components.
  • Fig. 3 is a cut end 21 of a leg 11 of a feeler foot 8c indicated. This cut end 21 could be used when planted on the underside of the board P an upward stroke limitation for the assigned one Form sensor arm A.
  • each actuator 13 is on the underside of the sensor arm part 7a to 7c is integrally formed flag, which is accordingly 4 and 5 and others. serves the lower end position of each sensor arm part 7a to 7c limit in cooperation with a stationary stop 30.
  • the optoelectronic detector of the scanning device T is formed of an emitter E and a receiver R aligned thereon, between which a beam path 23 is present.
  • the scanning device T is in one, for example on the plate P fixed, fork-shaped bracket 24 integrated.
  • the bracket 24 has a mouth-shaped recess 25 for the actuator 13, for example the feeler arm part 7a.
  • the stop 30 is provided, for example formed by an insert 26.
  • a recess 27 is provided in the insert 26, which is delimited on both sides by cover surfaces 29 and one on the underside the tab 13 provided projection 28 allowed in that shown in Fig. 4 Immerse end position in the recess 27.
  • This end position is defined by Rest of the lower side of the actuator 13 on the stop 30. In this end position an overlap provided on the projection 28 overlaps the beam path 23 lying cover edge 31 with the cover surfaces 29 to the beam path 23 reliably shade off.
  • the sensor foot 8a is shifted upwards, the Feeler arm part 7a raised against the force of its spring element 16a until the projection 28 emerged from the recess 27 and the overlap between the cover edge 31 and the cover surfaces 29 is removed, then the beam path 23 throughout.
  • the scanning device T is either in the 4 or in the position shown in FIG. 5 generates a signal that the control or monitoring device registers and evaluates.
  • the mechanical Overlap between the cover edge 31 and the cover surface 29 leads to a quick transition between full shade and full release of the beam path 23, resulting in a strong signal transition and the scanning device T already responds to a small stroke of the sensor arm part 7a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Looms (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
EP98966967A 1997-12-17 1998-12-17 Fadenliefergerät Expired - Lifetime EP1047819B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19756243A DE19756243A1 (de) 1997-12-17 1997-12-17 Fadenliefergerät
DE19756243 1997-12-17
PCT/EP1998/008301 WO1999031308A2 (de) 1997-12-17 1998-12-17 Fadenliefergerät

Publications (2)

Publication Number Publication Date
EP1047819A2 EP1047819A2 (de) 2000-11-02
EP1047819B1 true EP1047819B1 (de) 2002-09-11

Family

ID=7852334

Family Applications (3)

Application Number Title Priority Date Filing Date
EP98966967A Expired - Lifetime EP1047819B1 (de) 1997-12-17 1998-12-17 Fadenliefergerät
EP98966362A Expired - Lifetime EP1040069B1 (de) 1997-12-17 1998-12-17 Fadenliefergerät
EP98965279A Expired - Lifetime EP1040067B1 (de) 1997-12-17 1998-12-17 Fadenliefergerät

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP98966362A Expired - Lifetime EP1040069B1 (de) 1997-12-17 1998-12-17 Fadenliefergerät
EP98965279A Expired - Lifetime EP1040067B1 (de) 1997-12-17 1998-12-17 Fadenliefergerät

Country Status (6)

Country Link
US (1) US6409114B1 (ko)
EP (3) EP1047819B1 (ko)
KR (2) KR100368460B1 (ko)
CN (3) CN1099364C (ko)
DE (4) DE19756243A1 (ko)
WO (3) WO1999031308A2 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20050484A1 (it) * 2005-07-14 2007-01-15 L G L Electronics Spa Unita' di controllo per dispositivi di frenatura del filato in alimentatori di trama per telai di tessitura, e procedura di sintonizzazione della stessa
ITTO20050810A1 (it) * 2005-11-18 2007-05-19 Lgl Electronics Spa Rilevatore di scorta trama per dispositivi alimentatori di trama
ITTO20050893A1 (it) * 2005-12-22 2007-06-23 Lgl Electronics Spa Rilevatore di scorta trama perfezionato per dispositivi alimentari di trama
IT1402928B1 (it) * 2010-12-13 2013-09-27 Roj S R L Porgitrama per telaio tessile
CN113862848A (zh) * 2021-10-28 2021-12-31 那坡同益新丝绸科技实业有限公司 一种用于细纱机的夹纱装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1345648A (en) * 1971-04-29 1974-01-30 Lawson Hemphill Yarn storage feeders
US3844504A (en) * 1972-04-05 1974-10-29 Lawson Hemphill Method and apparatus for handling yarn
US3776480A (en) * 1972-04-05 1973-12-04 Lawson Hemphill Yarn handling apparatus
US3759455A (en) * 1972-09-28 1973-09-18 Wesco Industries Corp Filament feeding and storage device
US4226379A (en) * 1979-12-06 1980-10-07 Leesona Corporation Loom storage feeder improvement
BE900492A (nl) * 1984-09-04 1985-03-04 Picanol Nv Snelheidsregeling van inslagvoorafwikkelaar bij weefgetouwen.
ITTO980520A1 (it) * 1998-06-16 1999-12-16 Lgl Electronics Spa Perfezionamento ai dispositivi di sorveglianza della riserva di filato negli apparecchi alimentatori di trama a telai di tessitura.

Also Published As

Publication number Publication date
KR100368459B1 (ko) 2003-01-24
WO1999030999A1 (de) 1999-06-24
CN1099364C (zh) 2003-01-22
EP1047819A2 (de) 2000-11-02
DE59805136D1 (de) 2002-09-12
KR20010033231A (ko) 2001-04-25
CN1282303A (zh) 2001-01-31
WO1999031308A2 (de) 1999-06-24
WO1999031308A3 (de) 1999-08-19
DE59805134D1 (de) 2002-09-12
EP1040067B1 (de) 2002-08-07
WO1999030998A1 (de) 1999-06-24
CN1285803A (zh) 2001-02-28
DE59805557D1 (de) 2002-10-17
CN1098798C (zh) 2003-01-15
EP1040067A1 (de) 2000-10-04
DE19756243A1 (de) 1999-06-24
KR20010033232A (ko) 2001-04-25
KR100368460B1 (ko) 2003-01-24
CN1108270C (zh) 2003-05-14
CN1282304A (zh) 2001-01-31
US6409114B1 (en) 2002-06-25
EP1040069B1 (de) 2002-08-07
EP1040069A1 (de) 2000-10-04

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