EP0811714A1 - Systeme de traitement de fil - Google Patents

Systeme de traitement de fil Download PDF

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Publication number
EP0811714A1
EP0811714A1 EP96939347A EP96939347A EP0811714A1 EP 0811714 A1 EP0811714 A1 EP 0811714A1 EP 96939347 A EP96939347 A EP 96939347A EP 96939347 A EP96939347 A EP 96939347A EP 0811714 A1 EP0811714 A1 EP 0811714A1
Authority
EP
European Patent Office
Prior art keywords
yarn
knitting machine
piecing
supply
selector
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Withdrawn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
EP96939347A
Other languages
German (de)
English (en)
Other versions
EP0811714A4 (fr
Inventor
Hirao Otoshima
Hidetoshi Kimura
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery 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
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP0811714A1 publication Critical patent/EP0811714A1/fr
Publication of EP0811714A4 publication Critical patent/EP0811714A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/58—Thread guides for circular knitting machines; Thread-changing devices
    • D04B15/62—Thread guides for circular knitting machines; Thread-changing devices with thread knotters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • 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

Definitions

  • the present invention relates to a yarn processing system on a knitting machine that produces knitted goods such as socks or the like.
  • a first aspect of the present invention is the positioning of a yarn selector between the knitting machine and a supply yarn part having a plurality of types of supply yarns for a single knitting machine, a yarn piecing part that pieces the yarn from the knitting machine side and yarn from the yarn selector side linked between the knitting machine and yarn selector, and an air type yarn piecing device arranged on that yarn piecing part. Yarn piecing is performed without the formation of knots by yarn piecing by twisting together pairs of yarn ends by an air current thus producing high quality knitted goods where the knots do not project from the surface.
  • a yarn storage part is linked between the knitting machine and yarn piecing part. Accordingly, while yarn piecing is being performed by the yarn piecing part, a predetermined volume of yarn is supplied to the knitting machine from the yarn storage part corresponding to the operation speed of the knitting machine even if yarn is not supplied to the yarn storage part from the yarn piecing part side and continuous operation is possible without stoppage of the knitting machine.
  • each part of the operations may be controlled such that the yarn necessary at the knitting process of the knitting machine is supplied to knitting machine from the plurality of types of supply yarn of the supply yarn part by yarn piecing.
  • Figure 1 is a block diagram showing the yarn processing system being one embodiment of the present invention.
  • Figure 2 is plan view showing an example of application of an air type yarn piecing device of the yarn piecing part.
  • Figure 3 is side view showing a rotating type storage drum being an example of a device provided in the yarn storage part.
  • Figure 1 shows an embodiment of the yarn processing system of the present invention.
  • Figure 1 is a block diagram showing the system arrangement comprising mainly a supply yarn part 1, yarn selector 2, yarn piecing part 3, yarn storage part 4 and knitting machine 7. Each part is arranged from the knitting machine 7 in the following order; yarn storage part 4, yarn piecing part 3, yarn selector 2, supply yarn part 1. Each operation of the yarn selector 2, yarn piecing part 3 and yarn storage part 4 are completely controlled by a control part 5.
  • the supply yarn part 1 is suitable arranged with a plurality of types of supply yarn packages A-G differing in colour for example which do not interfere with each other.
  • the aforementioned supply yarn packages A-G have already been wound on a winder, consist of a yarn which has had yarn defects such as slub or the like removed having been dyed at a dying process and each of the aforementioned packages may be used on a knitting machine.
  • the supply yarn packages A-G are supported by the required number of types of packages being mounted in a suitable position.
  • the yarn of a single supply yarn package of among the supply yarn packages A-G is selected by the yarn selector 2, supplied to the knitting machine 7 via the yarn storage part 4 and knitted goods are produced.
  • each yarn end pulled from each supply yarn packages A-G of the supply yarn part 1 is held by the yarn selector 2 and the yarn end of one specific yarn of among the supply yarn packages A-G is selectively positioned in the yarn running position in accordance with commands from the control part 5.
  • each yarn end of each yarn of the supply yarn packages A-G of the supply yarn part 1 is held in a standby position in a yarn end holding part (not shown in the drawings) and the yarn necessary for the knitted goods produced by the knitting machine 7 is positioned in a yarn running position by the yarn end holding part that holds that yarn in accordance with commands from the control part 5.
  • the yarn end of the cut yarn of supply yarn package A of the supply yarn part 1 side is returned to a standby position by removing the yarn end holding part of that yarn from the yarn running position and the yarn end holding part 33 ( Figure 2) that holds the yarn end of another supply yarn package B positions the yarn end of the supply yarn package B in the yarn running position.
  • the positioned yarn end of the supply yarn package B is pieced to the supplied yarn storage part 4 side yarn end of the supply yarn package A by the yarn piecing part (described later) and thus the yarn of the supply yarn package B is supplied to the knitting machine 7. It should be noted that in figure 1, an example using 7 supply yarns has been described but this number may be freely changed.
  • the yarn piecing part 3 positioned next to the yarn selector 2 holds the yarn end of the yarn storage part 4 side yarn of the supply yarn package A forcibly cut at the yarn selector 2 and also the yarn end of the desired type of the newly supplied supply yarn package B, cuts them to a predetermined length and joins the yarn ends.
  • the yarn piecing part 3 has a yarn end cutting device (described later), a yarn piecing device 6 and a guide device for guiding the yarn end into a fixed position of the yarn piecing device and the like. An air type yarn piecing device is used as the yarn piecing device 6.
  • the yarn piecing part 3 basically comprises the yarn piecing member 37, yarn pressing device 38, untwisting nozzle 39,40, yarn moving lever 48, yarn end cutting deivce 41,42, yarn clamp device 43,44, a first suction pipe 45 that sucks and holds the yarn storage part 4 side yarn end, a second suction pipe 46 that sucks and holds the yarn selector 2 side yarn end and a rotating arm 29 that guides the yarn selector 2 side yarn end to the yarn piecing part 37.
  • a cylindrical yarn piecing hole 49 is arranged in the center of the yarn piecing member 37, a slit used for inserting the yarn from outside is formed in the yarn running direction, and furthermore, a blowing nozzle that blows compressed air is arranged in the vicinity of that slit and facing the yarn piecing hole 49.
  • the untwisting nozzle 39,40, yarn moving lever 48, yarn end cutting deivce 41,42 and yarn clamp device 43,44 are executed in a predetermined order by a cam system (not shown in the drawings).
  • the rotating arm 29 is supported so as to be able to freely rotate on a frame 50.
  • the rotating arm 29 is approximately L-shaped, a fan shaped gear 55 engages with a spur wheel 54 arranged on the shaft 53 mounted on the arm and the fan shaped gear 55 is driven by a program cam that is driven by orders from the control part 5, in short a yarn piecing command.
  • 56-61 are yarn guides.
  • the yarn receiving operations of the yarn storage part 4 stop due to a command from the control part 5 and the running of yarn upstream from the yarn storage part 4 stops.
  • the stationary yarn is then held in the yarn end holding part (not shown in the drawings) of that yarn of the yarn selector 2 and forcibly cut by the yarn cutting device 47 of the yarn selector 2.
  • the yarn selector 2 side yarn end is held in the yarn end holding part (not shown in the drawings), is removed from the yarn running position and is sent to a standby position. Then the yarn end YV of the new running yarn is sent to the yarn running position by the yarn end holding part 33 that was holding the yarn end YV.
  • the yarn end YP of the yarn storage part 4 side yarn forcibly cut by the yarn cutting part 47 of the yarn selector 2 is held by suction in the suction pipe 45.
  • the yarn end YP is clamped in a position a fixed distance from the yarn end tip by the yarn clamp device 43 while being suction held in the suction pipe 45, is cut by the yarn cutting device 41 and yarn end untwisting is performed on the yarn end in the free state by being sucked by the untwisting nozzle 39.
  • the yarn end YV sent to the yarn running position by the yarn end holding part 33 is released from the yarn end holding part 33 and then held in the movable piece 32 of the yarn gripper 30 on the tip of the rotating arm 29.
  • the rotating arm 29 then holds the yarn end YV in the movable piece 32 of the yarn gripper 30 at the tip and rotates, a roller arranged on a part of the movable piece 32 of the yarn gripper 30 couples with a cam plate 52, the movable piece opens, the held yarn selector 2 side yarn end is released and sucked into the suction pipe 46.
  • the rotating arm 29 rotates, the yarn selector 2 side yarn end YV is moved above the yarn piecing member 37 while the yarn from the supply yarn package is being pulled, the rotating arm 29 couples with the cam plate 52 in a position rotated by approximately 180 ° and as shown by the yarn YU indicated by a broken line, is sucked and held in the suction pipe 46.
  • the yarn end YU is clamped by the clamp device 44 while being suction held by the suction pipe 46, is cut by the yarn end cutting device 42 and an untwisting action is effected by the free yarn end being sucked into the untwisting nozzle 40. Furthermore, the yarn end inside the untwisting nozzles 39,40 are pulled by the rotation movement of the yarn moving lever 48 and the yarn ends are pieced together by the action of compressed fluid blown from the blowing nozzle by their overlapping in the yarn piecing hole 49 of the yarn piecing member 37.
  • the yarn piecing preparations are performed by each of the yarn ends YP,YU being positioned in a position shown by the broken line and solid line of figure 2 and yarn piecing is performed by the aforementioned actions.
  • the open end of the suction pipe 45 is facing upwards so as to receive the yarn end from below. If the distance between the yarn cutting device 47 of the yarn selector 2 and the suction pipe 45 is too short, the probability of failure of suction capture of the yarn end increases and the suction holding strength after suction capture is weakened as the length of the yarn end sucked by the suction pipe 45 is short. In short, the force exerting tension on the yarn is weak and this may lead to defective yarn piecing operations.
  • the distance between the yarn cutting device 47 of the yarn selector 2 and the suction pipe 45 is too long, the amount of excessive yarn cut by the yarn cutting device 47 increases and is undesirable. As a result, it is preferable to make this distance as short as possible within the range where the suction holding force is not excessive or insufficient.
  • the yarn storage part 4 is positioned in continuance with the yarn piecing part 3.
  • the yarn storage part 4 is connected to the knitting machine 7.
  • a predetermined amount of the yarn Y supplied to the yarn storage part 4 from the yarn piecing part 3 side is stored in the yarn storage part 4 and supplied to the knitting machine 7 from the yarn storage part 4. Due to this, continuous operation is possible without stopping the knitting machine 7 during yarn piecing by the yarn piecing part 3 even if yarn Y is not supplied to the yarn storage part 4 from the yarn piecing part 3 side.
  • the yarn storage part 4 is also connected to the control part 5 and as it operates by commands from the control part 5, yarn Y corresponding to the operation speed of the knitting machine 7 is supplied to the knitting machine 7 from the yarn storage part 4 without the yarn supplied to the knitting machine 7 changing in tension with respect to the predetermined tension.
  • FIG 3 is a side view showing the rotating type storage drum being an example of the device positioned in the yarn storage part 4.
  • the rotating type storage drum 15 is a rotating member having a flange 15a, trunk 15b and groove 15c, rotates by a pressure roller 15d being pressed in contact with the flange 15a and stores yarn Y as a wound state in the trunk 15b.
  • the yarn Y is stopped in the groove 15c by an air current inside a blow cover 15e.
  • a motor M4 is connected to the flange 15a and rotates the drum 15.
  • the motor M4 is linked to the control part 5 and is controlled so that a predetermined amount of yarn Y is stored in the trunk 15b.
  • the yarn supplied to yarn storage part 4 from the yarn piecing part 3 side is pressed by the pressure roller 15d onto the flange part 15a, a predetermined amount is stored in a wound state in the trunk 15b and then supplied to the knitting machine 7.
  • the motor M4 stops and a predetermined amount of yarn Y stored in the trunk 15b in a wound state is continuously supplied to the knitting machine 7. As a result, continuous operation is possible without stoppage of the knitting machine 7.
  • the motor M4 is connected to the control part 5 and as it is controlled by the control part 5, a predetermined amount of yarn corresponding to the operation speed of the knitting machine 7 is supplied to the knitting machine 7 from the yarn storage part 4 without the yarn Y supplied to the knitting machine 7 from the trunk 15b of the rotating type storage drum 15 changing in tension with respect to the predetermined tension.
  • the predetermined amount of yarn Y required by the knitting process of the knitting machine 7 is yarn pieced from the plurality of types of supply yarns A-G of the supply yarn part 1 to the knitting machine 7 by the yarn piecing device 6 of the yarn piecing part 3 and the control device 5 that controls the operations such as the selection of the yarn type and yarn supply length of each part is arranged such that a predetermined amount of yarn Y is stored in the yarn storage part 4 and supplied.
  • the control device 5 may use a relay sequence or microcomputer or the like.
  • control device 5 controls the selection of the yarn where the type of yarn supplied by the supply yarn part 1 is changed by the yarn selector 2, the yarn piecing of the yarn when there are changes by the yarn piecing device 6 of the yarn piecing part 3 and the operation and timing of the storage of the yarn in the rotating type storage drum 15 and rotating guide type storage drum of the yarn storage part 4.
  • a yarn of supply yarn package A for example is selected by the yarn selector 2 from the supply yarn packages A-G supported on the supply yarn part 1 and supplied to the knitting machine 7 via the yarn piecing part 3 and yarn storage part 4 for the knitted goods produced by the knitting machine 7.
  • a predetermined amount of yarn is stored in the yarn storage part 4 and due to the control part 5, the amount of the yarn Y supplied to the knitting machine 7 from the yarn storage part 4 corresponds to the operation speed of the knitting machine 7 without the tension being changed with respect to the predetermined tension.
  • a predetermined amount of yarn stored in the yarn storage part 4 is supplied to the knitting machine 7 in accordance with the commands from the control part 5 even if yarn Y is not supplied to the yarn storage part 4 thus continuous operation is possible without stoppage of the knitting machine 7.
  • the control part 5 detects completion of the yarn piecing, the yarn receiving actions of the yarn storage part 4 are restarted, the stationary yarn upstream from the yarn storage part 4 starts running again and the yarn supplied to the knitting machine 7 is switched from the supply yarn package A to the yarn of supply yarn package B. Similar to the above, during supply to the knitting machine 7, any desired yarn from the supply yarn packages A-G of the supply yarn part 1 may be exchanged and supplied to the knitting machine 7.
  • yarn piecing part 3, yarn storage part 4 and knitting machine 7 are connected to the control part 5, all the operations of the yarn selector 2, yarn piecing part 3, yarn storage part 4 and knitting machine 7 may be controlled collectively. Accordingly, the desired yarn from the supply yarn packages A-G may be supplied to the knitting machine 7 at the desired timing without stoppage of the knitting machine 7 and providing a stable knitting machine 7.
  • the yarn pieced by the aforementioned system is yarn piecing by an air type yarn piecing device thus the joint is almost indistinguishable from the a single yarn. It should be noted that the color arrangement and length and the like may be set irregularly or cyclically.
  • a predetermined amount of yarn corresponding to the operation speed of the knitting machine is supplied to the knitting machine from the yarn storage part and continuous operation is possible without stopping the knitting machine 7 during yarn piecing by the yarn piecing part 3 even if yarn Y is not supplied to the yarn storage part 4 from the yarn piecing part 3 side.
  • a predetermined amount of yarn is stored in the yarn storage part and there is no change to the tension of the yarn supplied to the knitting machine from the yarn storage part due to the control part with respect to the predetermined tension corresponding to the operation speed of the knitting machine.
  • a predetermined amount of yarn stored in the yarn storage part is supplied to the knitting machine in accordance with instructions from the control part during the yarn piecing by the yarn piecing part without the yarn being supplied to the yarn storage part thus continuous operation is possible without stopping the knitting machine 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP96939347A 1995-12-26 1996-12-03 Systeme de traitement de fil Withdrawn EP0811714A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP338958/95 1995-12-26
JP7338958A JPH09176942A (ja) 1995-12-26 1995-12-26 糸の処理システム
PCT/JP1996/003531 WO1997024481A1 (fr) 1995-12-26 1996-12-03 Systeme de traitement de fil

Publications (2)

Publication Number Publication Date
EP0811714A1 true EP0811714A1 (fr) 1997-12-10
EP0811714A4 EP0811714A4 (fr) 1998-03-11

Family

ID=18322941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96939347A Withdrawn EP0811714A4 (fr) 1995-12-26 1996-12-03 Systeme de traitement de fil

Country Status (6)

Country Link
EP (1) EP0811714A4 (fr)
JP (1) JPH09176942A (fr)
KR (1) KR100324258B1 (fr)
CN (1) CN1176671A (fr)
TW (1) TW359698B (fr)
WO (1) WO1997024481A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1411015A2 (fr) * 2002-10-15 2004-04-21 Murata Kikai Kabushiki Kaisha Système de traitement pour fils textiles
US9487887B1 (en) 2013-03-13 2016-11-08 Jonathan Grossman Systems and methods for manufacturing textiles

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004156184A (ja) * 2002-11-08 2004-06-03 Murata Mach Ltd 編機
JP5809899B2 (ja) * 2011-09-16 2015-11-11 村田機械株式会社 繊維束供給装置
CN111364158B (zh) * 2018-12-26 2021-07-16 魏志亮 圆形编织机变色头的打结装置
EP3798340B1 (fr) * 2019-09-26 2021-08-18 KARL MAYER STOLL R&D GmbH Procédé d'insertion du fil après le changement d'ensouple dans un métier chaîne et métier chaîne doté d'une fonction d'insertion du fil après un changement d'ensouple
CN112981690B (zh) * 2021-03-15 2022-06-07 福建泳力泰针织机械有限公司 一种针织大圆机高稳定传动系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063371A1 (fr) * 1981-04-16 1982-10-27 Aktiebolaget Iro Machine à tricoter pour la production de tricot à rayures transversales
EP0644422A1 (fr) * 1993-08-26 1995-03-22 Murata Kikai Kabushiki Kaisha Système de transport de paquets de fil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5124011B2 (fr) * 1973-04-28 1976-07-21
JPS6088145A (ja) * 1983-10-19 1985-05-17 村田機械株式会社 糸の処理システム
JPS60209029A (ja) * 1984-03-28 1985-10-21 Murata Mach Ltd 紡績機械
JPH02191746A (ja) * 1989-01-18 1990-07-27 Nissan Motor Co Ltd 多色織機の緯入れ制御装置
DE4118130A1 (de) * 1991-06-03 1992-12-10 Alkotex Srl Fadenverarbeitende maschine, insbesondere stickmaschine mit einer faden-wechseleinrichtung
JP2812158B2 (ja) * 1993-08-26 1998-10-22 村田機械株式会社 パッケージ搬送システム
JP3756966B2 (ja) * 1995-05-19 2006-03-22 株式会社島精機製作所 アパレルシステム及びそれに用いるリリヤン編機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063371A1 (fr) * 1981-04-16 1982-10-27 Aktiebolaget Iro Machine à tricoter pour la production de tricot à rayures transversales
EP0644422A1 (fr) * 1993-08-26 1995-03-22 Murata Kikai Kabushiki Kaisha Système de transport de paquets de fil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9724481A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1411015A2 (fr) * 2002-10-15 2004-04-21 Murata Kikai Kabushiki Kaisha Système de traitement pour fils textiles
EP1411015A3 (fr) * 2002-10-15 2004-12-22 Murata Kikai Kabushiki Kaisha Système de traitement pour fils textiles
US9487887B1 (en) 2013-03-13 2016-11-08 Jonathan Grossman Systems and methods for manufacturing textiles

Also Published As

Publication number Publication date
KR19980702526A (ko) 1998-07-15
EP0811714A4 (fr) 1998-03-11
WO1997024481A1 (fr) 1997-07-10
JPH09176942A (ja) 1997-07-08
CN1176671A (zh) 1998-03-18
KR100324258B1 (ko) 2002-03-08
TW359698B (en) 1999-06-01

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