EP0020796B1 - Dreherfaden-Liefereinrichtung für eine Webmaschine - Google Patents

Dreherfaden-Liefereinrichtung für eine Webmaschine Download PDF

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Publication number
EP0020796B1
EP0020796B1 EP79101878A EP79101878A EP0020796B1 EP 0020796 B1 EP0020796 B1 EP 0020796B1 EP 79101878 A EP79101878 A EP 79101878A EP 79101878 A EP79101878 A EP 79101878A EP 0020796 B1 EP0020796 B1 EP 0020796B1
Authority
EP
European Patent Office
Prior art keywords
thread
pawl
thread tensioner
tensioner
rocking lever
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
Application number
EP79101878A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0020796A1 (de
Inventor
Bernhard Robert Koch
Erich Vogelbacher
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.)
Sulzer AG
Original Assignee
Gebrueder Sulzer 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 Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Priority to AT79101878T priority Critical patent/ATE2688T1/de
Priority to DE7979101878T priority patent/DE2964948D1/de
Priority to EP79101878A priority patent/EP0020796B1/de
Priority to SU802928856A priority patent/SU984413A3/ru
Priority to US06/157,086 priority patent/US4354530A/en
Priority to JP7828380A priority patent/JPS56344A/ja
Priority to BR8003597A priority patent/BR8003597A/pt
Priority to CS804132A priority patent/CS244108B2/cs
Publication of EP0020796A1 publication Critical patent/EP0020796A1/de
Application granted granted Critical
Publication of EP0020796B1 publication Critical patent/EP0020796B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00—Leno or similar shedding mechanisms
    • 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
    • D03D47/40—Forming selvedges
    • D03D47/42—Forming selvedges by knitting or interlacing loops of weft
    • D03D47/44—Forming selvedges by knitting or interlacing loops of weft with additional selvedge thread

Definitions

  • the invention relates to a leno thread delivery device for a weaving machine, with at least one pair of thread bobbins and a spring tensioner associated with each thread bobbin, from which the thread let-off as a function of the thread tension via a pawl engaging in a ratchet wheel connected to the bobbin in a rotationally fixed manner is controlled.
  • thread tensioner and pawl consist of one piece. This combined part is pivoted on an axis under the action of a spiral spring.
  • thread tensioner is designed as a resilient arm and the pawl as an associated, separate component. Thread tensioner and pawl can not consist of one piece in this case due to their different functions, but are two separate parts rigidly connected to each other.
  • the tensile stresses from the warp threads are given directly to the pawl via the thread tensioner.
  • the warp thread is therefore subject to a relatively high load because the pawl should only be unlocked when the warp thread is at a higher tension.
  • the warp thread also has to constantly absorb the frictional force that occurs between the pawl and a toothing that switches the bobbin.
  • the invention has for its object to provide a particularly improved in this regard device.
  • the invention consists in that the pawl is attached to a swivel lever, which is in a limited, mutual movement, allowing a gear connection with the thread tensioner, such that the individual movements corresponding to the specialist movement of the thread tensioner are kept essentially away from the pawl and the swivel - Lever - can only be acted upon by the thread tensioner to unlock the ratchet wheel when the vibration range of the thread tensioner is relocated.
  • This makes it possible to keep the numerous fluctuations in the tension of the warp threads caused by the reed stop and changing of the weaving machine away from the pawl of the leno thread delivery device. These fluctuations are only given to the thread tensioner, which follows them in the form of rapid "dance movements". Only when the area of these dance movements is gradually shifted due to increasing warp thread tension is the pawl finally acted upon by the thread tensioner, whereby the delivery device can be switched on and thread can be supplied later.
  • the fabric 13 is wound onto a fabric tree 14. It contains 15 lathe, e.g. Twist or half-twist bindings. These are generated by leno thread delivery devices 16, which are indicated schematically in FIG. 1.
  • Each leno thread delivery device is fastened on a support 17 connected to the weaving machine frame and contains a base plate 18.
  • a drive shaft 21, which rotates continuously during operation, for the leno thread delivery device 16 is accommodated in the stay 17.
  • Each gear wheel 23 is seated on an axis 25 which is rotatably mounted in the base plate 18 and carries a disk 26 at the top.
  • leno thread supply bobbins can be attached to these, only one of which is shown in FIGS. 2 to 5 and designated 29.
  • the discs 26 visible on the right in FIG. 2 are driven via their gear wheels 23 and an intermediate gear wheel 31. This is in engagement with the gear 22.
  • a thread guide tube 33 (FIGS. 3, 5) is coupled for rotation, through which the pair of threads 45, 46 coming from the two associated bobbins 29 in FIGS. 3, 5 are derived downward and, for example, a twine turner pulley fed and then introduced into the weaving machine.
  • each disc 26 in addition to each ratchet wheel 27 or the associated spool 29, an axle 35 is fastened, on which a control lever 37 provided with a thread eyelet 36 and a pivot lever 40 provided with a thread eyelet 38 and a curved slot 39 are rotatable and supported one above the other.
  • the pivot lever 40 has at its rear end a pawl 41 which cooperates with the ratchet wheel 27.
  • the control lever 37 has a bolt 42 which projects into the slot 39 of the associated pivot lever 40.
  • the four disks 26 are continuously rotated from the drive shaft 21 in accordance with the arrows 43 (FIG. 2), so that a respective pair of coils 29 arranged on one and the same disk 26 is rotated around one at the upper end of the Thread guide tube 33 arranged thread eyelet 44 rotates.
  • the leno thread drawn off from the bobbin denoted by 29a in FIG. 4 is shown continuously and with 45, the thread drawn off from bobbin 29 is shown in broken lines and denoted by 46.
  • the bobbins 29 and 29a rotate in FIG. 4 in accordance with the arrows 47, 48.
  • the threads 45, 46 are drawn off in accordance with the arrows 49, 51 and run downward through the eyelet 44 and arrow 52 through the thread guide tube 33 in FIG. 5 off to the loom.
  • the axis 35 continues in FIG. 5 at the top into a threaded bolt 61, on which the steep nut 54 is rotatable and can be locked with a nut 62.
  • the upper end 63 of the spring 55 is anchored in the nut 54.
  • the tension of the spring 55 can thus also be set to a desired level during weaving operation.
  • the leno thread delivery device can e.g. can be used as a full-turn device.
  • a thread disc is to be connected to the thread guide tube 33. It can also be used in conjunction with a half-turn device.
  • the thread guide tube 33 is e.g. to connect a leno cord suspended in the shafts 11 of the weaving machine 1.
  • the drive 21, 23 of disk 26 is omitted in this case, cf. Fig. 7.
  • the device contains e.g. on the base plate 18 only two disks 26 with associated pairs of coils 29, 29a.
  • the spring action of the pivoting movement of the control lever 37 can also be used to ensure that the length differences of the leno threads 45, 46 which occur during the rotation of a downstream twisting disc or during the up and down movement of the shafts 11 are absorbed and the leno threads are always under approximately the same Tension can be kept.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Sewing Machines And Sewing (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Steroid Compounds (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
EP79101878A 1979-06-11 1979-06-11 Dreherfaden-Liefereinrichtung für eine Webmaschine Expired EP0020796B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT79101878T ATE2688T1 (de) 1979-06-11 1979-06-11 Dreherfaden-liefereinrichtung fuer eine webmaschine.
DE7979101878T DE2964948D1 (en) 1979-06-11 1979-06-11 Device for supplying the cross warp threads in a weaving machine
EP79101878A EP0020796B1 (de) 1979-06-11 1979-06-11 Dreherfaden-Liefereinrichtung für eine Webmaschine
SU802928856A SU984413A3 (ru) 1979-06-11 1980-06-02 Устройство дл подачи кромочной перевивочной нити к ткацкому станку
US06/157,086 US4354530A (en) 1979-06-11 1980-06-06 Crossing thread supply system for a weaving machine
JP7828380A JPS56344A (en) 1979-06-11 1980-06-10 Crossing thread supply apparatus of loom
BR8003597A BR8003597A (pt) 1979-06-11 1980-06-10 Fornecedor de fio torcido para tear
CS804132A CS244108B2 (en) 1979-06-11 1980-06-11 Leno thread's feed device for weaving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP79101878A EP0020796B1 (de) 1979-06-11 1979-06-11 Dreherfaden-Liefereinrichtung für eine Webmaschine

Publications (2)

Publication Number Publication Date
EP0020796A1 EP0020796A1 (de) 1981-01-07
EP0020796B1 true EP0020796B1 (de) 1983-03-02

Family

ID=8186138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79101878A Expired EP0020796B1 (de) 1979-06-11 1979-06-11 Dreherfaden-Liefereinrichtung für eine Webmaschine

Country Status (8)

Country Link
US (1) US4354530A (enrdf_load_stackoverflow)
EP (1) EP0020796B1 (enrdf_load_stackoverflow)
JP (1) JPS56344A (enrdf_load_stackoverflow)
AT (1) ATE2688T1 (enrdf_load_stackoverflow)
BR (1) BR8003597A (enrdf_load_stackoverflow)
CS (1) CS244108B2 (enrdf_load_stackoverflow)
DE (1) DE2964948D1 (enrdf_load_stackoverflow)
SU (1) SU984413A3 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101295048B1 (ko) * 2011-11-30 2013-08-09 주식회사 라지 판형 복합섬유용 장력조절장치

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9613858D0 (en) 1996-07-02 1996-09-04 Cortecs Ltd Hydrophobic preparations
DE19654962A1 (de) * 1996-12-12 1998-06-18 Dornier Gmbh Lindauer Halte- und Positioniereinrichtung für eine Dreherkantenvorrichtung in Webmaschinen
DE19651610B4 (de) * 1996-12-12 2005-03-10 Dornier Gmbh Lindauer Vorrichtung zum Bilden einer Dreherkante für Webmaschinen

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US124632A (en) * 1872-03-12 Improvement in let-off mechanisms for looms
US625206A (en) * 1899-05-16 Let-off mechanism for looms
CH227334A (de) * 1941-09-19 1943-06-15 Sulzer Ag Vorrichtung zum Bilden von Kanten an Webstühlen.
US2703587A (en) * 1953-10-19 1955-03-08 Draper Corp Selvage thread feeding means for looms
US2710631A (en) * 1954-08-12 1955-06-14 Draper Corp Selvage thread feeding means for looms
US2918092A (en) * 1957-04-09 1959-12-22 Paabo Max Device for effecting equal tensile stresses in two threads
US3320978A (en) * 1965-04-27 1967-05-23 Kobayashi Yasushi Selvage braiding means for a shuttleless loom
CH426676A (fr) * 1965-05-04 1966-12-15 Prince Jidosha Kogyo Kabushiki Dispositif pour tresser la lisière dans un métier à tisser sans navette
JPS4318767Y1 (enrdf_load_stackoverflow) * 1966-06-24 1968-08-03
CS161196B1 (enrdf_load_stackoverflow) * 1973-05-07 1975-06-10
JPS5112538U (enrdf_load_stackoverflow) * 1974-03-16 1976-01-29
US3945406A (en) * 1974-08-26 1976-03-23 Crompton & Knowles Corporation Leno selvedge device and method of forming a leno selvedge
CA1055363A (en) * 1977-03-15 1979-05-29 Neretex Corporation Leno motion device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101295048B1 (ko) * 2011-11-30 2013-08-09 주식회사 라지 판형 복합섬유용 장력조절장치

Also Published As

Publication number Publication date
SU984413A3 (ru) 1982-12-23
EP0020796A1 (de) 1981-01-07
CS413280A2 (en) 1985-08-15
JPH0128140B2 (enrdf_load_stackoverflow) 1989-06-01
BR8003597A (pt) 1981-01-05
JPS56344A (en) 1981-01-06
DE2964948D1 (en) 1983-04-07
CS244108B2 (en) 1986-07-17
ATE2688T1 (de) 1986-03-15
US4354530A (en) 1982-10-19

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