EP0964826B1 - Fadenfühler - Google Patents

Fadenfühler Download PDF

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Publication number
EP0964826B1
EP0964826B1 EP98965853A EP98965853A EP0964826B1 EP 0964826 B1 EP0964826 B1 EP 0964826B1 EP 98965853 A EP98965853 A EP 98965853A EP 98965853 A EP98965853 A EP 98965853A EP 0964826 B1 EP0964826 B1 EP 0964826B1
Authority
EP
European Patent Office
Prior art keywords
feeler
yarn
foot
thread
legs
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
EP98965853A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0964826A1 (de
Inventor
Patrik Jonas Magnusson
Staffan HAGSTRÖM
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7852333&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0964826(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Iropa AG filed Critical Iropa AG
Publication of EP0964826A1 publication Critical patent/EP0964826A1/de
Application granted granted Critical
Publication of EP0964826B1 publication Critical patent/EP0964826B1/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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • 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
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2407/00—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes
    • B65H2407/50—Means for protecting parts of handling machine
    • B65H2407/51—Means for making dustproof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/38—Thread sheet, e.g. sheet of parallel yarns or wires

Definitions

  • the invention relates to a thread sensor in the preamble of claim 1 specified type.
  • Thread sensor used, e.g. in thread delivery devices for scanning themselves mainly thread turns moving transverse to the thread axis. It did a training prevailed in which the thread sensor from a wire section like this is bent so that its thread base forms an approximately U-shaped tongue that with her Longitudinal axis is aligned approximately transversely to the thread axis, and on the underside the thread to be scanned runs along.
  • Thread sensor known, which is designed as a two-legged wire bracket and pivotable held with an axis mounted in the housing of a thread delivery device in this way is that his downward bent thread foot on the thread turns one on the storage drum of the thread delivery device rests on moving thread supply and can be deflected from a basic position by the thread turns in order for to give a control or monitoring device signals.
  • the U-shaped, two-legged thread foot points in the direction of movement of the thread turns and is sloping downwards.
  • the invention has for its object a thread sensor of the aforementioned To create a type that is characterized by increased operational reliability.
  • the uninterrupted area at least in the area of the support of the sensor base excludes the accumulation of impurities and fluff in the sensor base, and with it also the emergence of a dreaded fluff tail.
  • the thread sensor is loaded very gently, what sensitive thread qualities and / or high thread speeds is favorable. Overall, this is on Way improves the operational safety of the thread sensor because of disturbances Accumulations of contamination in the sensor base are avoided and the mechanical Load on the thread to be scanned is reduced (reduced risk of thread breakage).
  • the uninterrupted area is at least in the beginning of the stem of the feeler foot is extended to the forcibly during thread processing Do not give any fluff that may get caught.
  • the contact pressure of the feeler foot is distributed on the thread.
  • a roughly rectilinear generators can be concave, actually straight or convex, possibly depending on the geometric shape of the thread to be scanned located at the scan.
  • the uninterrupted surface should be convex or curved be composed of several surface sections, on the one hand, the passing Thread against a low and constant resistance, and on the other hand to be able to properly deflect the feeler foot through the thread.
  • the surface should be one in have a part parallel to the storage drum, the size of which is sufficient, in particular to cover two adjacent turns at the same time with thread separation.
  • the uninterrupted area should be rounded in the edge area or beveled to, if it also forms the support, possibly for the thread to exclude dangerous edges or cutting.
  • the sensor base is a molded part, preferably made of metal or Plastic in which the uninterrupted surface is integrated in one piece.
  • This Embodiment is advantageous in terms of manufacturing technology. Since the feeler foot only with his Surface, it can even be hollow to save weight.
  • the shaft is formed by two spaced legs, which with their outer contours parallel to one another or even converging to the support in the feeler foot are transferred. This is particularly important when using the sensor foot in a thread delivery device, because when threading or due to other influences sometimes the thread may be temporarily off and then against the shaft runs. The shaft should then be under the thread tension alone let it slide automatically under the support, so that the thread is caught on the feeler foot or on the shaft.
  • the sensor base is alternatively formed from a wire section, E.g .: curved, the space between the legs by an insert (hollow or solid).
  • the insert occupies the space, so to speak, so that there are no more impurities and fluff.
  • the sensor foot is bent from wire with a shoe-like Cover, which also prevents dirt and lint from settling prevented in the space between the legs and also forms the support.
  • the space between the legs of the wire curved sensor base covered by a membrane-like flat element, that either withdraws from the edition or forms the edition.
  • a membrane-like flat element that either withdraws from the edition or forms the edition.
  • the feeler foot is a skid-like flat element that the The support and the uninterrupted surface has and cantilevered on the shaft is appropriate.
  • This is a particularly lightweight and structurally simple embodiment, which prevents impurities and fluff from settling is.
  • this cavity could be filled according to claim 13 be filled in to prevent the ingress of contaminants or fluff.
  • This filling could, for example, foam or other material (e.g. potting compound) be that has no other function than the occupation of the cavity.
  • Fig. 1 is (in two views) a thread sensor F conventional training in the Thread scanning shown.
  • the thread sensor is a two-legged bracket from one Wire material 1 with legs 2 and 3 bent, their turning point in a bend Have 4 and the cranked over a shaft 6 relative to the sensor arm F.
  • Form sensor foot A With the undersides of the legs 2, 3 in the feeler foot A one Pad B defines, along which thread Y slides when scanning.
  • the thread sensor F is raised in the direction of the double arrow, for example generate a signal indicating the presence of thread Y (if applicable several thread turns) is represented under sensor foot A.
  • a flat element 7 ' is attached to the underside of the sensor foot A, which is possibly extended into the shaft 6 (at 8) and both the support B as well as the uninterrupted surface P with which the sensor foot A forms the thread applied.
  • the edges of the element 7 ' are expediently rounded drawn (indicated at 9). In the space 5, there is no more fluff collect, or only to a safe extent.
  • a shoe-like cover 7 " is pulled over the feeler foot A, which may be extends to the shaft 6 and the space 5 both from below as well as covering from above.
  • the support B and the surface P with which the thread acts is formed by the coating 7 ". That in the area of the space 5 and inside the coating 7 "cavity can be filled 10, e.g. Foam or other material. It would also be conceivable to close the coating 7 "at the shaft.
  • Fig. 5 is in the sensor base A a membrane-like, flat element 7 "'between the Leg 2, 3 inserted, which forms the surface P and covers the intermediate space 5, however, it is higher than the edition B. This will cause contamination and Lint impossible to collect and cause disturbances.
  • a similar flat element T is provided as in Fig. 3 for covering of the gap 5 is used.
  • 6 forms the flat element 7 ', which can have the shape of a skid, directly feeler foot A.
  • the element 7 ' attached to the legs 2, 3, which form the shaft 6.
  • the element 7 ' carries the surface P and forms the support B with which the feeler foot A acts on the thread.
  • the element 7 ' can have a rounded raised edge 9 and be extended to the shaft 6 at 8.
  • an insert 11 is inserted into the feeler foot A between the legs 2, 3, which fills the space 5 and possibly extends to the support B. or forms it.
  • the insert 11 defines an uninterrupted area P that the Prevention of lint and contamination in the space 5.
  • the insert is pulled up to the shaft 6 (as shown) and nestles for example, with an edge groove on the curvature of the legs 2, 3 (for round wire material).
  • the insert for example made of plastic exists, could also be glued in or fixed in some other way.
  • the surface P can be approximately parallel to the main plane of the feeler foot A and be even. Alternatively, however, there is also a convex downward curvature, and in longitudinal section and / or in cross section.
  • the elements 7, 7 ', 7 ", 7"' could be made of plastic or sheet metal.
  • the sensor base A with its legs 2 ', 3' is a solid or hollow Molding made of plastic or metal, either in one piece with the not shown Sensor arm F is connected or attached to this.
  • the uninterruptible Surface P on the underside of sensor foot A is - in the direction of movement of thread Y - formed with a concave curvature or from individual, Surface sections 12 which are butt adjoining one another are formed.
  • Sensor foot A should be essentially parallel to the surface of the storage drum and have an approximately flat surface section of a size which ensures that two adjacent thread turns are covered even with thread separation.
  • the surface P can also be approximately flat in the direction of the longitudinal axis of the thread, or concave or convex curved.
  • the outer edge area of the surface P is expedient rounded or beveled (at 15 or 15 ').
  • the area P is up to The beginning of the shaft 16 extends and runs there with a transverse edge 14 and one Transverse wall 13 from.
  • the top of the sensor base also has an uninterrupted one Area P '.
  • the legs 2 ', 3' either run parallel and at a distance to each other or even converge towards the feeler foot 8.
  • This design is too provided in the embodiments of FIGS. 2 to 8, with regard to the Use of the sensor arm in a thread delivery device where (e.g. when threading) the thread comes to rest laterally on one of the legs and then under the tensile stress prevailing in it is automatically drawn down to the support B. must be able to get caught on the sensor arm or sensor foot.
  • light metal is used to manufacture sensor foot A.
  • a winding element 21 is adjacent to one of a thread delivery device D.
  • stationary storage drum T shown, on which the thread Y in side by side Windings wound and overhead when consumed in Fig. 10 to the right the storage drum T is removed.
  • the thread delivery device has in this area three thread sensors S1, S2, S3, each with a sensor arm F and a sensor foot A, for example according to FIG. 9.
  • the sensor feet A engage from the outside Sensor housing 20 towards the storage drum T, which in this area with a longitudinal recess 22 is formed, which the thread Y spans.
  • the first sensor S1 is, for example, a thread break sensor that monitors whether the first Turns of the thread supply are properly present or not.
  • the second sensor S2 is a minimal sensor, which monitors the minimum permissible size of the thread supply on the storage drum T. and generates a signal in this area in the absence of the thread with which the drive for the winding element 21 is switched on or accelerated, to supplement the thread supply.
  • the third sensor S3 is a maximum sensor that the maximum permitted size of the thread supply is monitored and in the presence of thread Y in this area a signal to switch off or delay the drive of the Winding element generated. The turns of thread Y migrate in Fig. 10, e.g. with a thread separation, from left to right.
  • the three sensor arms F are pivotally mounted on a common axis 18 and are moved by a spring arrangement C towards a defined basic position (lowered) burdened.
  • Each sensor arm F consists of a sensor arm part 17 which a stop 19 for cooperation with the spring arrangement C and a Jack 16 carries.
  • a leg 2 ', 3' is in the socket 16 sensor foot A inserted.
  • scanning devices T for each sensor arm F provided, e.g. contactless and opto-electronic, signals generate, depending on whether the assigned sensor arm F is in the basic position is located or has been displaced from it.
  • everyone is in the basic position Feeler foot A with its support B or surface P in FIG Distance from the bottom of the recess 22.
  • the distance is such that the thread Y when passing under the sensor foot, lift the sensor foot up from the basic position repressed.
  • three sensors are with one another combined in a small space. However, there could be more than three sensors or less.
  • the sensor feet A are identical in construction (rational manufacture); to adapt to the respective installation condition, the is not in one Jack 16 inserted legs 2 ', 3' shortened to the necessary length.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Knitting Machines (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP98965853A 1997-12-17 1998-12-17 Fadenfühler Expired - Lifetime EP0964826B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19756242 1997-12-17
DE19756242A DE19756242A1 (de) 1997-12-17 1997-12-17 Fadenliefergerät
PCT/EP1998/008300 WO1999031001A1 (de) 1997-12-17 1998-12-17 Fadenfühler

Publications (2)

Publication Number Publication Date
EP0964826A1 EP0964826A1 (de) 1999-12-22
EP0964826B1 true EP0964826B1 (de) 2003-03-19

Family

ID=7852333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98965853A Expired - Lifetime EP0964826B1 (de) 1997-12-17 1998-12-17 Fadenfühler

Country Status (6)

Country Link
US (1) US6357692B1 (ko)
EP (1) EP0964826B1 (ko)
KR (1) KR100353240B1 (ko)
CN (1) CN1109647C (ko)
DE (2) DE19756242A1 (ko)
WO (1) WO1999031001A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102601163A (zh) * 2012-03-28 2012-07-25 江苏泰博钢丝制品有限公司 一种防翻边装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737112A (en) * 1971-04-23 1973-06-05 Wesco Industries Corp Yarn feeding and storage device for textile producing machine
US3844504A (en) * 1972-04-05 1974-10-29 Lawson Hemphill Method and apparatus for handling yarn
US3759455A (en) * 1972-09-28 1973-09-18 Wesco Industries Corp Filament feeding and storage device
US4265176A (en) * 1979-06-01 1981-05-05 Kabushiki Kaisha Sato Kenkyusho Clog preventive device for label printing and applying machine
US4226379A (en) * 1979-12-06 1980-10-07 Leesona Corporation Loom storage feeder improvement
FR2508882B1 (fr) * 1981-07-06 1985-08-16 Inst Textile De France Systeme de detection de la presence de fils sur un continu a filer
DE3417936C2 (de) * 1984-05-15 1986-06-26 Memminger Gmbh, 7290 Freudenstadt Fadenliefervorrichtung für Textilmaschinen
CS253087B1 (en) * 1985-04-03 1987-10-15 Otakar Curda Thread motion guard
CH685635A5 (de) * 1992-06-17 1995-08-31 Zellweger Uster Ag Anordnung zur Kontrolle des Vorhandenseins von Fäden einer aufgespannten Fadenschicht an einer Textilmaschine.

Also Published As

Publication number Publication date
US6357692B1 (en) 2002-03-19
WO1999031001A1 (de) 1999-06-24
DE59807558D1 (de) 2003-04-24
CN1249727A (zh) 2000-04-05
EP0964826A1 (de) 1999-12-22
KR100353240B1 (ko) 2002-09-18
DE19756242A1 (de) 1999-06-24
KR20000071171A (ko) 2000-11-25
CN1109647C (zh) 2003-05-28

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