EP0098254A2 - Schussfadenspeicher für Düsenwebmaschinen - Google Patents

Schussfadenspeicher für Düsenwebmaschinen Download PDF

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Publication number
EP0098254A2
EP0098254A2 EP83850181A EP83850181A EP0098254A2 EP 0098254 A2 EP0098254 A2 EP 0098254A2 EP 83850181 A EP83850181 A EP 83850181A EP 83850181 A EP83850181 A EP 83850181A EP 0098254 A2 EP0098254 A2 EP 0098254A2
Authority
EP
European Patent Office
Prior art keywords
weft
reservoir
control pin
cam
control
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.)
Withdrawn
Application number
EP83850181A
Other languages
English (en)
French (fr)
Other versions
EP0098254A3 (de
Inventor
Yujiro Takegawa
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.)
Tsudakoma Corp
Original Assignee
Tsudakoma Industrial Co Ltd
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
Priority claimed from JP1982096392U external-priority patent/JPS59483U/ja
Priority claimed from JP1982097789U external-priority patent/JPS594777U/ja
Application filed by Tsudakoma Industrial Co Ltd filed Critical Tsudakoma Industrial Co Ltd
Publication of EP0098254A2 publication Critical patent/EP0098254A2/de
Publication of EP0098254A3 publication Critical patent/EP0098254A3/de
Withdrawn legal-status Critical Current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
    • 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
    • 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 side of the device closer to the supply source of weft is referred to as “the upstream side” and the side of the device closer to the main jet nozzle is referred to as “the downstream side”.
  • control pin leaves its operative zone by disappearing from the periphery of the reservoir drum, and advances into its operative zone by appearing on the periphery of the reservoir drum.
  • weft reservoir can well be used for weaving by one sort of weaving, too.
  • a magazine 41 is arranged on the outer side of the reservoir drum 1 in a fixed relationship, and a slot 41a is formed in the wall of magazine 41 facing the reservoir drum 1 whilst extending in the axial direction of the reservoir drum 1.
  • the first control pin P1 is directed towards the reservoir drum 1 through this slot 41a and its drive cam Cl is encased within the magazine 41.
  • Each of the drive cams C1 and C2 completes its one cycle rotation within a period of 0° to 1080° crank angle, weft delivery for the first weft insertion is carried out within a period of 0° to 360 crank angle and weft delivery for the second insertion is carried out within a period of 360 to 720° crank angle, on one weft reservoir. During a period of 720° to 1080 crank angle, weft delivery for insertion is carried out once on the other weft reservoir.
  • each of the drive cams C1 and C2 completes its one cycle rotation within a period of 0 to 1440° crank angle and weft delivery for insertion is carried out twice within a period of 0° to 720 crank angle on one weft reservoir.
  • weft delivery for insertion is carried out twice on the other weft reservoir.
  • a moment (I) in Fig. 2 corresponds to 0° crank angle.
  • the first control pin P1 stays standstill at the most advanced position in its operative zone whereas the second control pin P2 has already started to recede from the most advanced position in its operative zone in order to move downstream along an arc path of travel in the axial direction of the reservoir drum 1.
  • Reservation of weft for the second insertion has already started on the upstream side of the first control pin P1 and coils of weft for the first insertion are reserved in the area between the first and second control pins P1 and P2.
  • a moment (DI) in Fig. 2 corresponds to 180 0 crank angle.
  • a moment X in Fig. 2 corresponds to 810 crank angle and shift in condition from this moment corresponds to that from the moment (IV) to the moment (VI).
  • the first control pin P1 starts to recede from the most advanced position in the operative zone to travel downstream whereas the second control pin P2 starts to advance from the most receded position in the stand-by zone. Reservation of weft further develops on the upstream side of the first control pin P1.
  • the coils of reserved weft are always assigned from the first to second control pin at the same axial position on the reservoir drum whereat the two control pins pass by.
  • This similarity in assignment of reserved weft relates to similarity in mode of reservation of weft for the first and second insertions.
  • Such similar mode of reservation of weft at different moments relates to similar behaviour of weft during delivery of weft at different moment.
  • Uniform insertion can be carried out for every cycle of loom running. This is the:biggest advantage of the present invention.
  • FIG. 3 The other example of the operation of the weft reservoir in accordance with the present invention is shown in Fig. 3, in which, like the first example, four coils of weft are assumed to correspond to the length of weft for one insertion of weft, black circles indicate coils of weft for the first insertion of weft, and white circles indicate coils of weft for the second insertion of weft.'
  • a moment (I) in Fig. 3 corresponds to 0° crank angle.
  • the first control pin P1 is located within the operative zone and the second control pin P2 has started to recede from the most advanced position in the operative zone to move downstream along an arc path of travel in the axial direction of the weft reservoir 1. Reservation of weft for the second insertion has already started on the upstream side of the first control pin P1 and coils of weft for the first insertion are held in the area between the two control pins P1 and P2.
  • the second control pin P2 has just disappeared from the periphery of the reservoir drum 1. Delivery of weft for the first insertion now starts. Reservation of weft further continues on the upstream side of the first control pin P1 and the coils of weft, which have been held in the area between the first and second control pins, are sequentially delivered due to traction by the main jet nozzle which has started the first insertion of weft.
  • a moment (VI) in Fig. 3 corresponds to 450 crank angle.
  • the first control pin P1 has reached the most receded position in the stand-by zone and the second control pin P2 remains standstill at the most receded position in the stand-by zone.
  • the second insertion of weft starts at this moment.
  • the coils of weft which have been held by the first control pin P1 are sequentially delivered due to traction of the main jet nozzle.
  • the first control pin P1 has already been registered at the most advanced position in the operative zone and the position of the second control pin P2 is unchanged.
  • the second insertion of weft terminates about this moment and reservation of weft for the first insertion of the next cycle has already started on the upstream side of the first control pin Pl.
  • This condition is maintained at the moment (IX) in Fig. 3 corres- ponding to 720 crank angle and the above-described reservation of weft further develops.
  • a moment (XI) in Fig. 3 corresponds to 900 crank angle.
  • the first control pin P1 traveling downstream passes by the second control pin P2 traveling upstream and coils of weft for the first insertion of the next cycle, which have been held on the upstream side of the first control pin Pl, are assigned to the second control pin P2 at this very moment of passing by. Assignment of reserved weft takes place between the first and second control pins P1 and P2.
  • the first control pin P1 is now registered at the most receded position in the stand-by zone whereas the second control pin P2 is registered at the most advanced position in the operative zone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP83850181A 1982-06-25 1983-06-27 Schussfadenspeicher für Düsenwebmaschinen Withdrawn EP0098254A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP96392/82 1982-06-25
JP1982096392U JPS59483U (ja) 1982-06-25 1982-06-25 流体噴射式織機用緯糸貯留装置
JP97789/82 1982-06-28
JP1982097789U JPS594777U (ja) 1982-06-28 1982-06-28 流体噴射式織機用緯糸貯留装置

Publications (2)

Publication Number Publication Date
EP0098254A2 true EP0098254A2 (de) 1984-01-11
EP0098254A3 EP0098254A3 (de) 1984-03-14

Family

ID=26437599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83850181A Withdrawn EP0098254A3 (de) 1982-06-25 1983-06-27 Schussfadenspeicher für Düsenwebmaschinen

Country Status (2)

Country Link
EP (1) EP0098254A3 (de)
KR (1) KR900008679B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004044295A3 (de) * 2002-11-12 2004-07-15 Iropa Ag Liefergerät
CN100500539C (zh) * 2002-11-12 2009-06-17 艾罗帕股份有限公司 喂纱器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3071093D1 (en) * 1979-06-22 1985-10-24 Tsudakoma Ind Co Ltd Weft reservoir for an alternate two-pick change type fluid jet shuttleless loom
JPS5626038A (en) * 1979-08-10 1981-03-13 Nissan Motor Weft yarn storage apparatus of shuttleless loom
NL7907093A (nl) * 1979-09-24 1981-03-26 Rueti Te Strake Bv Werkwijze voor het weven met een spoelloze weefmachine, alsmede daarbij te gebruike inslagvoorbereidingsinrich- ting.
CH643013A5 (en) * 1980-04-01 1984-05-15 Sulzer Ag Weft-thread storage device for weaving machines
JPS5782546A (en) * 1980-11-12 1982-05-24 Nissan Motor Storage apparatus of "futakoshi" weft yarn of shuttleless loom
JPS57101040A (en) * 1980-12-11 1982-06-23 Nissan Motor Weft yarn storing apparatus of shuttleless loom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004044295A3 (de) * 2002-11-12 2004-07-15 Iropa Ag Liefergerät
CN100500539C (zh) * 2002-11-12 2009-06-17 艾罗帕股份有限公司 喂纱器

Also Published As

Publication number Publication date
KR900008679B1 (ko) 1990-11-26
KR840005181A (ko) 1984-11-05
EP0098254A3 (de) 1984-03-14

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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Ipc: D03D 47/36

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Effective date: 19841115

RIN1 Information on inventor provided before grant (corrected)

Inventor name: TAKEGAWA, YUJIRO