EP3103905B1 - Garnklemm- und -schneidstruktur für eine abziehvorrichtung einer rundstrickmaschine - Google Patents

Garnklemm- und -schneidstruktur für eine abziehvorrichtung einer rundstrickmaschine Download PDF

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Publication number
EP3103905B1
EP3103905B1 EP15171550.5A EP15171550A EP3103905B1 EP 3103905 B1 EP3103905 B1 EP 3103905B1 EP 15171550 A EP15171550 A EP 15171550A EP 3103905 B1 EP3103905 B1 EP 3103905B1
Authority
EP
European Patent Office
Prior art keywords
yarn
blade
clipping
yarn clipping
cutting
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.)
Not-in-force
Application number
EP15171550.5A
Other languages
English (en)
French (fr)
Other versions
EP3103905A1 (de
Inventor
Peng Cheng Lee
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.)
Pai Lung Machinery Mill Co Ltd
Original Assignee
Pai Lung Machinery Mill 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
Application filed by Pai Lung Machinery Mill Co Ltd filed Critical Pai Lung Machinery Mill Co Ltd
Priority to EP15171550.5A priority Critical patent/EP3103905B1/de
Priority to TR2018/02784T priority patent/TR201802784T4/tr
Publication of EP3103905A1 publication Critical patent/EP3103905A1/de
Application granted granted Critical
Publication of EP3103905B1 publication Critical patent/EP3103905B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54Thread guides
    • D04B15/58Thread guides for circular knitting machines; Thread-changing devices
    • D04B15/60Thread guides for circular knitting machines; Thread-changing devices with thread-clamping or -severing devices

Definitions

  • the present invention relates to a striping apparatus of knitting machines and particularly to a striping apparatus for a circular knitting machine.
  • striping apparatus on a circular knitting machine is a technique known in the art.
  • the circular knitting machine that adopts the striping apparatus will have changes on installation.
  • the striping apparatus can generally be divided into vertical types and horizontal types.
  • U.S. patent No. 6,655,176 entitled “Striping apparatus for a circular knitting machine” and No. 5,070,709 entitled “Striping system for circular knitting machine” disclose respectively a vertical striping apparatus to feed different colored yarns into a knitting machine
  • U.S. patent No. 5,218,845 entitled “Circular knitting machine striper control system” and No. 7,036,343 entitled “Striping apparatus of a circular knitting machine” disclose respectively a horizontal striping apparatus and a controller used on a knitting machine.
  • EP 2 363 519 A1 and DE 16 35 868 A1 disclose yarn gripping and cutting devices.
  • the primary object of the present invention is to solve the disadvantages and problems of the conventional techniques to make sure that colored yarns are securely clipped and cut off at merely one side to prevent yarn dropping or generation of yarn debris, and reduce product defects and enhance knitting operation stability of knitting needles.
  • Another object of the invention is to maintain the original thickness of yarn clipping and cutting mechanism of the striping apparatus to facilitate installation of the striping apparatus on the circular knitting machine that have a greater number of yarn feeding ports.
  • the present invention provides a yarn clipping and cutting structure for a striping apparatus of a circular knitting machine according to independent claim 1 that is installed on a circular knitting machine and driven by operation thereof.
  • the striping apparatus includes a plurality of yarn clipping and cutting structures.
  • Each yarn clipping and cutting structure has among others features as follow: it has two yarn clipping and cutting drive blades that abut each other and can be driven synchronously.
  • a first yarn clipping and cutting drive blade has one side with a yarn feeding blade located thereon.
  • the first yarn clipping and cutting drive blade and the yarn feeding blade are interposed by a yarn clipping blade in contact with the first yarn clipping and cutting drive blade.
  • the first yarn clipping and cutting drive blade has a first end edge formed a first yarn picking portion.
  • the yarn picking portion has a directing section movable against the yarn clipping blade to perform yarn clipping operation.
  • a second yarn clipping and cutting drive blade has another side opposing the yarn clipping blade with a yarn cutting blade located thereon in contact with the second yarn clipping and cutting drive blade.
  • the second yarn clipping and cutting drive blade has a second end edge formed a second yarn picking portion.
  • the second yarn picking portion forms a yarn clipping movement against the yarn cutting blade and has a spaced section formed an elevation difference against the directing section.
  • the directing section has a first directing sloped surface close to the yarn clipping blade.
  • the directing section has a second directing sloped surface close to the spaced section.
  • the yarn clipping and cutting drive blades are integrally formed.
  • the yarn clipping and cutting drive blade of the invention can form a yarn clipping safety buffer section during yarn clipping and cutting process, hence can prevent colored yarns from dropping from the yarn clipping blade while the circular knitting machine is in high speed operation with the colored yarns being stretched.
  • the first directing sloped surface formed between the directing section of the yarn picking portion and the yarn clipping blade and side angle cut off With the first directing sloped surface formed between the directing section of the yarn picking portion and the yarn clipping blade and side angle cut off, rupturing of the colored yarn during the yarn clipping operation can be prevented.
  • the yarn picking portion and the yarn cutting blade at another side perform yarn cutting operation, therefore the yarn is cut off only at one side, and can prevent generation of yarn debris and improve the quality of knitting fabrics.
  • the invention provides a yarn clipping and cutting structure for a striping apparatus 1 (a vertical type in this embodiment) installed on a circular knitting machine (at a position which can be referred to the prior arts mentioned previously), and driven by operation of the circular knitting machine.
  • the striping apparatus 1 has two sides each has an outer cover plate 10 located thereon, and a plurality of yarn clipping and cutting structures 2 located between the two outer cover plates 10.
  • the yarn clipping and cutting structures 2 can be interposed by an isolation blade 7 between them (also can be omitted in this embodiment).
  • Each yarn clipping and cutting structure 2 includes two yarn clipping and cutting drive blades that abut each other and are driven synchronously.
  • a first yarn clipping and cutting drive blade 3a has one side with a yarn feeding blade 6 located thereon.
  • the first yarn clipping and cutting drive blade 3a and the yarn feeding blade 6 are interposed by a yarn clipping blade 4 in contact with the first yarn clipping and cutting drive blade 3 a.
  • the first yarn clipping and cutting drive blade 3a has a first end edge formed a first yarn picking portion 30a which has a directing section 31 movable against the yarn clipping blade 4 to perform yarn clipping operation.
  • the directing section 31 has a first directing sloped surface 311 close to the yarn clipping blade 4 to prevent a colored yarn 8 from being ruptured during the yarn clipping operation, and a second directing sloped surface 312 close to a spaced section 32 that also can prevent the colored yarn 8 from being ruptured during the yarn clipping operation.
  • a second yarn clipping and cutting drive blade 3b has another side with a yarn cutting blade 5 located thereon in contact with the second yarn clipping and cutting drive blade 3b.
  • the second yarn clipping and cutting drive blade 3b has a second end edge formed a second yarn picking portion 30b which has the spaced section 32 formed thereon movable against the yarn cutting blade 5 and formed an elevation difference against the directing section 31.
  • FIGS. 5 through 10 Please refer to FIGS. 5 through 10 for operation conditions of the yarn clipping and cutting structure of the invention.
  • the first yarn picking portion 30a of the first yarn clipping and cutting drive blade 3a and the yarn clipping blade 4 tightly clip the colored yarn 8, and the colored yarn 8 also forms a yarn clipping safety buffer section 81 at the spaced section 32 to avoid the colored yarn 8 from escaping the yarn clipping blade 4.
  • the colored yarn 8 at the directing section 31 first is in contact with the yarn clipping blade 4, and the first yarn picking portion 30a and the yarn clipping blade 4 start yarn clipping operation (referring to FIG.
  • the spaced section 32 forms the yarn clipping safety buffer section 81 which can prevent the yarn from escaping the yarn clipping blade 4 and dropping while the striping apparatus 1 is in high speed operation.
  • the first directing sloped surface 311 is formed between the directing section 31 and the yarn clipping blade 4, the first directing sloped surface 311 with the side corner cut off can prevent the colored yarn 8 from being ruptured by an acute angle during the yarn clipping operation.
  • the technique provided by the invention performs yarn cutting operation via the second yarn picking portion 30b and the yarn cutting blade 5 after the colored yarn 8 has been clipped, hence a fully yarn clipping effect can be accomplished while yarn cutting is performed merely on a single side.
  • the striping apparatus 1 of the invention can maintain the original thickness of the yarn clipping and cutting structures 2, therefore the striping apparatus 1 can be installed on an existing circular knitting machine to form a desired match with the circular knitting machine which includes a greater number of yarn feeding ports.
  • FIGS. 11 and 12 Please refer to FIGS. 11 and 12 for another embodiment of the yarn clipping and cutting drive blade.
  • the yarn clipping and cutting drive blade 3 in this embodiment differs by employing merely a single blade (integrated formed). Hence yarn clipping and cutting operation is performed synchronously by the yarn picking portion 30 of the yarn clipping and cutting drive blade 3.
  • the invention also can be implemented as desired.
  • the invention further provides a yarn clipping and cutting structure for a striping apparatus of a circular knitting machine.
  • the striping apparatus 1 is installed on the circular knitting machine and driven by operation thereof.
  • the striping apparatus 1 has two sides each has an outer cover plate 10 located thereon, and a plurality of yarn clipping and cutting structures 2 located between the two outer cover plates 10.
  • the yarn clipping and cutting structures 2 can be interposed by an isolation blade 7 between them.
  • Each yarn clipping and cutting structure 2 includes a yarn clipping and cutting drive blade 3 which has one side with a yarn feeding blade 6 located thereon, and a yarn clipping blade 4 located between the yarn clipping and cutting drive blades 3 and the yarn feeding blade 6.
  • the yarn clipping blade 4 is in contact with the yarn clipping and cutting drive blade 3.
  • the yarn clipping and cutting drive blade 3 has another side with a yarn cutting blade 5 located thereon in contact with the yarn clipping and cutting drive blade 3.
  • the yarn clipping and cutting drive blade 3 has an end edge formed a yarn picking portion 30 which has a directing section 31 movable against the yarn clipping blade 4 to perform yarn clipping operation.
  • the directing section 31 has a first directing sloped surface 311 close to the yarn clipping blade 4 and a second directing sloped surface 312 close to a spaced section 32.
  • the spaced section 32 is movable against the yarn cutting blade 5 and formed an elevation difference against the directing section 31.
  • FIGS. 13 through 16 Please refer to FIGS. 13 through 16 for operation conditions of the second embodiment of the yarn clipping and cutting structure of the invention.
  • the second embodiment is a horizontal type.
  • the second embodiment does not have the isolation blade 7 as the first embodiment does, but can be included as desired.
  • the structural features and yarn clipping and cutting operation are same as that of the first yarn clipping and cutting drive blade 3 a and the second yarn clipping and cutting drive blade 3b previously discussed in the first embodiment, thus also is implementable as desired.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Claims (4)

  1. Garnklemm- und Schneidestruktur für eine Abziehvorrichtung (1), die an einer Rundstrickmaschine installiert ist, die Abziehvorrichtung (1) wird durch Betreiben der Rundstrickmaschine angetrieben, und weist eine Vielzahl von Garnklemm- und Schneidstrukturen (2) auf, jede Garnklemm- und Schneidstruktur (2) umfasst:
    eine erste Garnklemm- und Schneidemesserklinge (3a) und eine zweite Garnklemm-und Schneidemesserklinge (3b), die aneinander grenzen und synchron angetrieben werden, die erste Garnklemm- und Schneidemesserklinge (3a) ist durch eine Garnzuführklinge (6) begrenzt, die so konfiguriert ist, dass sie ein farbiges Garn (8) auf eine Seite führt, zwischen der ersten Garnklemm- und -Schneidemesserklinge (3a) und der Garnzuführklinge (6) ist eine Garnklemmklinge (4) angeordnet, in Kontakt mit der ersten Garnklemm- und -Schneidemesserklinge (3a), die erste Garnklemm- und -Schneidemesserklinge (3a) weist eine erste Endkante auf, die einen ersten Garngreifabschnitt (30a) bildet, der sich gegen die Garnklemmklinge (4) bewegt, um einen Garnklemmvorgang auszuführen, die zweite Garnklemm- und Schneidemesserklinge (3b) steht mit einer Garnschneidklinge (5) an einer Seite gegenüberliegend zu der Garnklemmklinge (4) in Kontakt, die zweite Garnklemm-und Schneidemesserklinge (3b) weist eine zweite Endkante auf, die einen zweiten Garngreifabschnitt (30b) bildet, der sich gegen die Garnklemmklinge (5) bewegt, um den Garnschneidevorgang auszuführen, der erste Garngreifabschnitt (30a) weist einen Richtbereich (31) auf, der so konfiguriert ist, dass er das gefärbte Garn (8) trägt und so konfiguriert ist, dass er das gefärbte Garn (8) umbiegt, um einem Drehpunkt auf dem gefärbten Garn (8) zu bilden, während der Durchführung des Garnschneidevorgangs,
    wobei die Garnklemm- und Schneidestruktur dadurch gekennzeichnet ist, dass die zweite Garnklemm- und -Schneidemesserklinge (3b) einen Abstandabschnitt (32) aufweist, der eine Höhendifferenz gegenüber dem Richtbereich (31) zwischen dem zweiten Garngreifabschnitt (30b) und dem ersten Garngreifabschnitt (30a) bildet, konfiguriert, um einen Garnklemmsicherheitspufferabschnitt (81) über dem Wendepunkt hinaus zubilden.
  2. Garnklemm- und Schneidestruktur nach Anspruch 1, wobei der Richtbereich (31) eine erste Richtflächenschräge (311) in der Nähe der Garnklemmklinge (4) aufweist.
  3. Garnklemm- und Schneidestruktur nach Anspruch 2, wobei der Richtbereich (31) eine zweite Richtflächenschräge (312) in der Nähe des Abstandsabschnittes (32) aufweist.
  4. Garnklemm- und Schneidstruktur nach Anspruch 2, wobei die erste Garnklemm- und -Schneidemesserklinge (3a) und die zweite Garnklemm- und - Schneidemesserklinge (3b) einstückig ausgebildet sind.
EP15171550.5A 2015-06-11 2015-06-11 Garnklemm- und -schneidstruktur für eine abziehvorrichtung einer rundstrickmaschine Not-in-force EP3103905B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15171550.5A EP3103905B1 (de) 2015-06-11 2015-06-11 Garnklemm- und -schneidstruktur für eine abziehvorrichtung einer rundstrickmaschine
TR2018/02784T TR201802784T4 (tr) 2015-06-11 2015-06-11 Bir dairesel örgü makinesinin bir şerit çekme cihazı için iplik kırpma ve kesme yapısı.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15171550.5A EP3103905B1 (de) 2015-06-11 2015-06-11 Garnklemm- und -schneidstruktur für eine abziehvorrichtung einer rundstrickmaschine

Publications (2)

Publication Number Publication Date
EP3103905A1 EP3103905A1 (de) 2016-12-14
EP3103905B1 true EP3103905B1 (de) 2017-12-06

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ID=53373353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15171550.5A Not-in-force EP3103905B1 (de) 2015-06-11 2015-06-11 Garnklemm- und -schneidstruktur für eine abziehvorrichtung einer rundstrickmaschine

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EP (1) EP3103905B1 (de)
TR (1) TR201802784T4 (de)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618951A (en) * 1952-11-25 Cutting means
US1951842A (en) * 1934-03-20 Knitting machine
DE1635868C3 (de) * 1967-09-18 1975-02-20 Mayer & Cie Maschinenfabrik, 7477 Tailfingen Fadenwechselvorrichtung für Strickmaschinen
ES2006232A6 (es) 1987-12-04 1989-04-16 Jumberca Sa Sistema para listar en una maquina circular de genero de punto.
US5218845A (en) 1992-12-07 1993-06-15 Wang Ping S Circular knitting machine striper control system
IT1312329B1 (it) * 1999-05-26 2002-04-15 Mecmor Spa Dispositivo per l'alimentazione selettiva dei fili in macchine permaglieria o simili.
US6655176B1 (en) 2002-06-27 2003-12-02 Pai Lung Machinery Mill Co., Ltd. Striping apparatus for circular knitting machines
US7036343B1 (en) 2005-11-07 2006-05-02 Pai Lung Machinery Co., Ltd. Striping apparatus of a circular knitting machine
IT1398548B1 (it) * 2010-03-05 2013-03-01 Santoni & C Spa Dispositivo per la pinzatura ed il taglio del filo, particolarmente per guidafili rigatori per macchine per maglieria o simili.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
TR201802784T4 (tr) 2018-03-21
EP3103905A1 (de) 2016-12-14

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