EP3770312A1 - Métier à tricoter à mailles cueillies capable de modifier les positions de fil - Google Patents

Métier à tricoter à mailles cueillies capable de modifier les positions de fil Download PDF

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Publication number
EP3770312A1
EP3770312A1 EP19187868.5A EP19187868A EP3770312A1 EP 3770312 A1 EP3770312 A1 EP 3770312A1 EP 19187868 A EP19187868 A EP 19187868A EP 3770312 A1 EP3770312 A1 EP 3770312A1
Authority
EP
European Patent Office
Prior art keywords
yarn
sinkers
needles
needle
knitting machine
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.)
Granted
Application number
EP19187868.5A
Other languages
German (de)
English (en)
Other versions
EP3770312B1 (fr
Inventor
Hsin-Chung 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 ES19187868T priority Critical patent/ES2930115T3/es
Priority to EP19187868.5A priority patent/EP3770312B1/fr
Priority to PT191878685T priority patent/PT3770312T/pt
Publication of EP3770312A1 publication Critical patent/EP3770312A1/fr
Application granted granted Critical
Publication of EP3770312B1 publication Critical patent/EP3770312B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/28—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns
    • D04B9/34—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns by plating
    • 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
    • D04B15/06—Sinkers

Definitions

  • the invention relates to a weft knitting machine knitting structure, in particular to a weft knitting machine knitting structure with changeable yarn positions.
  • Plating also known as yarn overlapping, refers to the simultaneous feeding of two differently colored yarns during knitting, causing a technical face and a technical back of a knitted fabric to appear differently colored.
  • Fig. 1 the fabric surface thereof is shown in Fig. 1 .
  • Jacquard the foregoing knitting techniques are known in the art as Jacquard.
  • the main purpose of the present invention is directed to solve the problem in the prior art that a yarn carrier used for knitting yarns would cause after images appeared on a fabric easily.
  • the secondary object of the present invention is directed to solve the practical problems deriving from the fact that yarn changes are required to be carried out in a variety of sinkers in conventional techniques.
  • the present invention provides a weft knitting machine knitting structure with changeable yarn positions, wherein a facing yarn and a bottom yarn positioned below the facing yarn are fed during knitting.
  • the weft knitting machine knitting structure comprises a plurality of sinkers and a plurality of needles.
  • the plurality of sinkers is respectively arranged adjacent to one of the plurality of needles.
  • Each of the plurality of sinkers comprises a belly, a nose connected with the belly, and a throat between the belly and the nose.
  • Each of the plurality of sinkers is guided to perform a linear displacement movement, wherein the facing yarn is positioned above the nose and the bottom yarn is positioned in the throat in a process of the linear displacement movement.
  • the plurality of needles respectively includes a hook and a latch for performing a closing action relative to the hook.
  • Each of the needles is controlled to move in a first needle retracting track knitting a standard plating without changing positions of the facing yarn and the bottom yarn in the hook, or to move in a second needle retracting track knitting an interchanged plating with changing the positions of the facing yarn and the bottom yarn in the hook.
  • the latch dials the bottom yarn to make the bottom yarn pushed by the nose of one of the plurality of sinkers when one of the plurality of sinkers adjacent to each of the plurality of needles does not restrict positions of the facing yarn and the bottom yarn.
  • the time point for the latch of each of the plurality of needles generating the closing action in the second needle retracting track is earlier than the first needle retracting track.
  • the weft knitting machine knitting structure comprises a needle guide plate guiding the plurality of needles in a first needle retracting track or the second needle retracting track, and a sinker guide plate guiding the plurality of sinkers to perform the linear displacement movement. Further, the weft knitting machine knitting structure comprises a needle selector for controlling each of the needles.
  • each of the plurality of sinkers has only a single motion track, and the motion track cycles through a first retraction section, a first push-out section subsequent to the first retraction section, a second retraction section subsequent to the first push-out section, and a second push-out section subsequent to the second retraction section.
  • the time point for the latch of each of the plurality of needles generating the closing action in the first needle retracting track is that one of the plurality of sinkers adjacent to the latch moves to the second retraction section
  • the time point for the latch of each of the plurality of needles generating the closing action in the second needle retracting track is that one of the plurality of sinkers adjacent to the latch moves to the first push-out section.
  • the top yarn and the bottom yarn are different in color.
  • the invention has the following characteristics: according to the weft knitting machine knitting structure disclosed by the invention, the change of the yarn position is carried out at the feeding points of the facing yarn and the bottom yarn, so that the knitting requirement for changing yarns can be quickly performed, and the after image on the fabric is specifically avoided. Besides, the weft knitting machine knitting structure provided by the invention can achieve the purpose of quick yarn changing and knitting without greatly modifying the integral structure.
  • the present invention provides a weft knitting machine knitting structure 10 with changeable yarn positions, which is provided on a needle bed 20 of a weft knitting machine, and the weft knitting machine is a circular knitting machine.
  • the weft knitting machine knitting structure 10 comprises a plurality of sinkers 11 and a plurality of needles 12, wherein the plurality of sinkers 11 are arranged at equal intervals, and each of the plurality of sinkers 11 comprises a belly 111, a nose 112 connected with the belly 111, and a throat 113 between the belly 111 and the nose 112.
  • a yarn-bearing surface 114 of each of the plurality of sinkers 11 is located on a side of the nose 112 without facing the throat 113, and the yarn-bearing surface 114 is not limited by a plane and is able to be designed according to implementation requirements.
  • a yarn-pushing surface 115 is located at an end of the nose 112, the yarn-pushing surface 115 is flat in this embodiment, but is not so limited and is able to be designed according to the implementation requirements.
  • each of the plurality of sinkers 11 of the present invention is guided by a sinker guide plate 13 to perform a linear displacement movement 116. Further, the linear displacement movement 116 is actually a one-dimensional movement.
  • the plurality of needles 12 are disposed adjacent to one of the plurality of sinkers 11 respectively, that is, each of the plurality of needles 12 is disposed between any two of the plurality of sinkers 11 that are adjacent.
  • Each of the plurality of needles 12 comprises a hook 121 and a latch 122 performing a closing action where is relative to the hook 121. Further, when each of the plurality of needles 12 moves to hook a yarn, the latch 122 performs opening relative to the hook 121 so that the yarn is able to enter the hook 121.
  • the latch 122 when each of the plurality of needles 12 is retracted, the latch 122 performs the closing action in the direction towards the hook 121 due to the action of a previous knitted plating 50, closing the originally open portion of the hook 121.
  • the plurality of needles 12 of the present invention are arranged in a direction that the open portion of the hook 121 faces the throat 113 adjacent to one of the plurality of sinkers 11, as shown in Fig. 6 .
  • the motion direction of the plurality of needles 12 of the present invention is perpendicular to the direction of the linear displacement movement 116, and the plurality of needles 12 are controlled by a needle guide plate 14 respectively for guiding each of the plurality of needles 12 to move in a first needle retracting track 40 or a second needle retracting track 41.
  • each of the plurality of needles 12 is controlled by a needle selector (not shown in the drawings).
  • a time point for the latch 122 of each of the plurality of the needles 12 performing the closing action in the second needle retracting track 41 is earlier than in the first needle retracting track 40.
  • the weft knitting machine knitting structure 10 receives a facing yarn 30 and a bottom yarn 31 positioned below the facing yarn 30 that are fed by a yarn-feeding device (not shown in the drawings) during knitting.
  • the color of the facing yarn 30 is different color from the color of the bottom yarn 31.
  • herein presenting inaction of the plurality of needles 12 explains the relationship among each of the plurality of sinkers 11, the facing yarn 30 and the bottom yarn 31 for the moment.
  • each of the plurality of sinkers 11 is guided by the sinker guide plate 13 to carry out the linear displacement movement 116, and in the process of the linear displacement movement 116, the facing yarn 30 is always positioned above the nose 112, and the bottom yarn 31 is always positioned in the throat 113. Further, each of the plurality of sinkers 11 only performs one-dimensional movement.
  • each of the plurality of needles 12 knits a standard plating without changing positions of the facing yarn 30 and the bottom yarn 31 in the hook 121, and the so-called “the standard plating” refers to a plating in which the facing yarn 30 is positioned above the bottom yarn 31 when viewing from a technical face of a fabric.
  • the standard plating refers to a plating in which the facing yarn 30 is positioned above the bottom yarn 31 when viewing from a technical face of a fabric.
  • the latch 122 dials the bottom yarn 31 to make the bottom yarn 31 be pushed by the nose 112 of the plurality of sinkers 11, so as to change the positions of the facing yarn 30 and the bottom yarn 31 in the hook 121, then to knit an interchanged plating.
  • the so-called "the interchanged plating” refers to a plating in which the facing yarn 30 is positioned under the bottom yarn 31 when viewing from the technical face of the fabric.
  • each of the plurality of sinkers 11 of the present invention only comprises one motion track 42 that recurring operations of a first retraction section 421, a first push-out section 422 subsequent to the first retraction section 421, a second retraction section 423 subsequent to the first push-out section 422, and a second push-out section 424 subsequent to the second retraction section 423.
  • the retraction of the present invention is defined that each of the plurality of sinkers 11 moves in a direction opposing to the feeding point of the facing yarn 30 and the bottom yarn 31, so that the facing yarn 30 and the bottom yarn 31 are not restricted by the plurality of sinkers 11.
  • the push-out action of the present invention is defined that after the retraction each of the plurality of sinkers 11 moves toward the feeding point of the facing yarn 30 and the bottom yarn 31, so that the facing yarn 30 and the bottom yarn 31 are restricted by the plurality of sinkers 11 and unable to change position.
  • each of the plurality of sinkers 11 in each section of the motion track 42 varies the position continuously, rather than being located at a single location.
  • the time point for the latch 122 generating the closing action is that one of the plurality of sinkers 11 adjacent to the latch 122 moves to the second retraction section 423.
  • the facing yarn 30 and the bottom yarn 31 are hooked by the hook 121 in a state of being initially fed into the weft knitting machine knitting structure 10.
  • the time point for the latch 122 generating the closing action is that one of the plurality of sinkers 11 adjacent to the latch 122 moves to the first push-out section 422.
  • the time point for the latch 122 generating the closing action is not at the end point of the first push-out section 422, and is a stage that each of the plurality of sinkers 11 still does not restrict the position of the facing yarn 30 and the bottom yarn 31 in the first push-out section 422 instead.
  • the bottom yarn 31 is dialed so that the bottom yarn 31 is diverged from the original position and is positioned on the displacement track of the nose 112 adjacent to one of the plurality of sinkers 11, and the plurality of sinkers 11 continuously performing a pushing action is allowing the yarn-pushing surface 115 to push the bottom yarn 31, so as to change the position of the bottom yarn 31 relative to the facing yarn 30 until the hook 121 of one of the plurality of needles 12 is hooked.
  • the present invention performs position change at the position where the facing yarn 30 and the bottom yarn 31 are fed into the weft knitting machine knitting structure 10 to perform jacquard knitting.
  • the yarn changing reaction time of the weft knitting machine knitting structure 10 is real-time, and the problem that patterns of a fabric appears after image due to slow yarn changing reaction speed of the conventional can be solved.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Knitting Of Fabric (AREA)
EP19187868.5A 2019-07-23 2019-07-23 Métier à tricoter à mailles cueillies capable de modifier les positions de fil Active EP3770312B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES19187868T ES2930115T3 (es) 2019-07-23 2019-07-23 Estructura de tejido de máquina de tejer por trama con posiciones de hilo cambiables
EP19187868.5A EP3770312B1 (fr) 2019-07-23 2019-07-23 Métier à tricoter à mailles cueillies capable de modifier les positions de fil
PT191878685T PT3770312T (pt) 2019-07-23 2019-07-23 Máquina de tricô de trama capaz de mudar as posições dos fios

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19187868.5A EP3770312B1 (fr) 2019-07-23 2019-07-23 Métier à tricoter à mailles cueillies capable de modifier les positions de fil

Publications (2)

Publication Number Publication Date
EP3770312A1 true EP3770312A1 (fr) 2021-01-27
EP3770312B1 EP3770312B1 (fr) 2022-09-14

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ID=67438568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19187868.5A Active EP3770312B1 (fr) 2019-07-23 2019-07-23 Métier à tricoter à mailles cueillies capable de modifier les positions de fil

Country Status (3)

Country Link
EP (1) EP3770312B1 (fr)
ES (1) ES2930115T3 (fr)
PT (1) PT3770312T (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4438781A1 (fr) * 2023-03-28 2024-10-02 Pai Lung Machinery Mill Co., Ltd. Machine à tricoter circulaire avec cylindre et plateau à aiguilles

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666794A (en) 1928-04-17 Appabatus fob and method of knitting
US1950405A (en) 1929-08-22 1934-03-13 Wildt & Co Ltd Reverse-plating mechanism for knitting machines
US1977590A (en) 1926-09-17 1934-10-16 Scott & Williams Inc Process and machine for making plated fabrics
US2273811A (en) * 1941-01-13 1942-02-24 Samuel Mishcon Method of knitting and machine therefor
US2616276A (en) 1949-07-20 1952-11-04 Jacquard Knitting Machine Co Inc Knitting machine for and method of plating
US3157035A (en) 1962-07-30 1964-11-17 M K M Knitting Mills Inc Plating attachment for knitting machine
US4328686A (en) * 1980-05-12 1982-05-11 Speizman Industries, Inc. Auxiliary yarn feed finger and pattern drum sleeve for circular knitting machines and method of knitting therewith
CN2249253Y (zh) 1994-12-30 1997-03-12 胡朝三 具有双片双层的正反包毛巾与提花生克片装置
WO2000015890A1 (fr) 1998-09-14 2000-03-23 E.I. Du Pont De Nemours And Company Ensemble reglable de support de fils de tricot vanise pour le vanisage
CN104532458A (zh) 2014-12-16 2015-04-22 江南大学 一种纬编单面交换添纱提花织物的生产方法和专用装置
US9834871B2 (en) * 2015-03-11 2017-12-05 Pai Lung Machinery Mill Co., Ltd. Method for knitting interchanged plating on a technical face of a fabric for flat bed knitting machines

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666794A (en) 1928-04-17 Appabatus fob and method of knitting
US1977590A (en) 1926-09-17 1934-10-16 Scott & Williams Inc Process and machine for making plated fabrics
US1950405A (en) 1929-08-22 1934-03-13 Wildt & Co Ltd Reverse-plating mechanism for knitting machines
US2273811A (en) * 1941-01-13 1942-02-24 Samuel Mishcon Method of knitting and machine therefor
US2616276A (en) 1949-07-20 1952-11-04 Jacquard Knitting Machine Co Inc Knitting machine for and method of plating
US3157035A (en) 1962-07-30 1964-11-17 M K M Knitting Mills Inc Plating attachment for knitting machine
US4328686A (en) * 1980-05-12 1982-05-11 Speizman Industries, Inc. Auxiliary yarn feed finger and pattern drum sleeve for circular knitting machines and method of knitting therewith
CN2249253Y (zh) 1994-12-30 1997-03-12 胡朝三 具有双片双层的正反包毛巾与提花生克片装置
WO2000015890A1 (fr) 1998-09-14 2000-03-23 E.I. Du Pont De Nemours And Company Ensemble reglable de support de fils de tricot vanise pour le vanisage
CN104532458A (zh) 2014-12-16 2015-04-22 江南大学 一种纬编单面交换添纱提花织物的生产方法和专用装置
US9834871B2 (en) * 2015-03-11 2017-12-05 Pai Lung Machinery Mill Co., Ltd. Method for knitting interchanged plating on a technical face of a fabric for flat bed knitting machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4438781A1 (fr) * 2023-03-28 2024-10-02 Pai Lung Machinery Mill Co., Ltd. Machine à tricoter circulaire avec cylindre et plateau à aiguilles

Also Published As

Publication number Publication date
ES2930115T3 (es) 2022-12-07
PT3770312T (pt) 2022-11-14
EP3770312B1 (fr) 2022-09-14

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