EP4286577A1 - Structure de machine à tricoter circulaire - Google Patents

Structure de machine à tricoter circulaire Download PDF

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Publication number
EP4286577A1
EP4286577A1 EP22177104.1A EP22177104A EP4286577A1 EP 4286577 A1 EP4286577 A1 EP 4286577A1 EP 22177104 A EP22177104 A EP 22177104A EP 4286577 A1 EP4286577 A1 EP 4286577A1
Authority
EP
European Patent Office
Prior art keywords
knitting
track
machine structure
needles
sinkers
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.)
Pending
Application number
EP22177104.1A
Other languages
German (de)
English (en)
Inventor
James C.C. Wang
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 EP22177104.1A priority Critical patent/EP4286577A1/fr
Publication of EP4286577A1 publication Critical patent/EP4286577A1/fr
Pending legal-status Critical Current

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    • 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
    • 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
    • D04B15/32—Cam systems or assemblies for operating knitting instruments

Definitions

  • the present invention relates to a circular knitting machine structure, in particular to a circular knitting machine structure which can be used for knitting an interchanged plating by changing a position of a surface yarn.
  • US11,136,698 discloses a weft knitting machine knitting structure capable of changing positions of yarns.
  • each of knitting needles is controlled to carry out a first retracting track and a second retracting track; and when each of the knitting needles moves according to the first retracting track, each of the knitting needles is used for knitting a standard plating without changing positions of a surface yarn and a bottom yarn in a needle hook.
  • each of the knitting needles moves according to the second retracting track
  • the bottom yarn is stirred by a needle latch, and the bottom yarn is pushed by a nose part of the sinker to change the positions of the surface yarn and the bottom yarn in the needle hook, so that an interchanged plating is knitted.
  • US9,834,871 discloses a method of knitting an interchanged plating on a technical positive-side and single-side manner by a flat knitting machine.
  • the method is that a sinker can be used for simultaneously pushing a bottom yarn (i.e. a first color yarn described in the scheme) and a surface yarn (i.e. a second color yarn described in the scheme) to slide downwards for knitting by a front edge of a nose portion in a period that a knitting needle is located at a second retracting segment, so as to form a normal plating (i.e. a standard plating described in the scheme).
  • a bottom yarn i.e. a first color yarn described in the scheme
  • a surface yarn i.e. a second color yarn described in the scheme
  • the sinker When a machine head enables the knitting needle to move according to a yarn interchanging and retracting stroke, the sinker can be at a junction of a rear edge of the nose portion and a groove in a period that the knitting needle is located at the yarn interchanging and retracting stroke, and the bottom yarn is stirred up to the position above the surface yarn and then is released for knitting, so as to form an interchanged plating.
  • both the US11,136,698 and US9,834,871 can achieve the yarn interchanging purpose, the two schemes are realized by changing the position of the bottom yarn.
  • a space in the needle hook of each of the knitting needles is limited; and when the bottom yarn and the surface yarn are fed into the needle hook, the bottom yarn is closer to the position of the needle latch, and the above position is a narrower part of the space in the needle hook, leading to the problem of unsmooth interchanging of the bottom yarn.
  • the sinker disclosed in the US9,834,871 is used for stirring the bottom yarn through two-dimensional movement, but a sinker of the circular knitting machine cannot carry out two-dimensional movement.
  • the present invention mainly aims to solve the problem of unsmooth interchanging of yarns caused by that the existing implementation scheme is implemented mainly by changing a bottom yarn.
  • the present invention provides a circular knitting machine structure, which comprises a plurality of knitting needles and a plurality of sinkers.
  • Each of the plurality of knitting needles comprises a needle hook, each of the plurality of knitting needles is controlled to move on one of a first half knitting track and a second half knitting track, and a retracting time point of the first half knitting track is later than a retracting time point of the second half knitting track.
  • Each of the plurality of sinkers is arranged correspondingly to each of the plurality of knitting needles, patterns of the plurality of sinkers are uniform, and one side of each of the plurality of sinkers facing each of the plurality of knitting needles is formed with an inclined plane, wherein when each of the plurality of knitting needles is used for knitting, a surface yarn and a bottom yarn are fed into each of the plurality of knitting needles, and a position of the surface yarn in the needle hook is higher than a position of the bottom yarn; when one of the plurality of knitting needles moves on the first half knitting track, a standard plating is knitted without changing the position of the surface yarn; and when one of the plurality of knitting needles moves on the second half knitting track, the surface yarn transitorily leans against the inclined plane of one of the sinkers, and the position of the surface yarn is changed relative to the bottom yarn so that an interchanged plating is knitted.
  • each of the plurality of sinkers comprises a sinker track
  • each sinker track comprises a push-out segment carried out when each of the knitting needles is used for retracting and a pull-back segment carried out following the push-out segment.
  • each of the plurality of sinkers is provided with a belly part, a nose part connected with the belly part, and a throat part between the belly part and the nose part; and the inclined plane and a flat plane connected with the inclined plane are formed on one side of the nose part distant from the belly part.
  • the circular knitting machine structure comprises at least one knitting cam for providing movement paths for the plurality of knitting needles, and at least one needle selector which is controlled to drive each of the plurality of knitting needles to move on one of the first half knitting track and the second half knitting track.
  • the circular knitting machine structure comprises at least one sinker cam for guiding the plurality of sinkers to move.
  • each of the plurality of knitting needles is controlled to move on the first half knitting track, the second half knitting track and a plain knitting track.
  • the circular knitting machine structure is provided with the at least one knitting cam for providing movement paths for the plurality of knitting needles, and at least one needle selector which is controlled to drive each of the plurality of knitting needles to move on one of the first half knitting track, the second half knitting track and the plain knitting track.
  • the circular knitting machine structure has the following characteristic: besides the circular knitting machine structure can enable each of the plurality of knitting needles to move on one of the first half knitting track and the second half knitting track, the problem of blocking of the yarns or unsmooth interchanging of the yarns in a yarn interchanging process is avoided by changing the position of the surface yarn relative to the bottom yarn.
  • the present invention provides a circular knitting machine structure 10, and the circular knitting machine structure 10 comprises a plurality of knitting needles 11 and a plurality of sinkers 12.
  • the circular knitting machine structure 10 comprises a plurality of knitting needles 11 and a plurality of sinkers 12.
  • Each of the plurality of knitting needles 11 is provided with a needle hook 111 and a needle latch 112 which can be used for performing an opening-closing action relative to the needle hook 111.
  • the needle latch 112 is opened relatively to the needle hook 111, so that the yarns can be fed into the needle hook 111.
  • each of the plurality of knitting needles 11 is controlled to move according to one of a first half knitting track 20 and a second half knitting track 21, and a retracting time point of the first half knitting track 20 is later than a retracting time point of the second half knitting track 21.
  • the circular knitting machine structure 10 comprises one or more knitting cams 13 for defining movable paths of each of the plurality of knitting needles 11, and at least one needle selector 14 for determining movement trajectories of the plurality of knitting needles 11.
  • the one or more knitting cams 13 can be formed by a plurality of cam blocks 131, and patterns of the plurality of cam blocks 131 are not limited to fixed patterns and are designed according to requirements of paths.
  • the needle selector 14 is in information connection with a controller (not shown in the drawings) arranged on the circular knitting machine 10; the needle selector 14 is used for selecting the movement trajectories of the plurality of knitting needles 11 based on a signal sent by the controller according to a knitting process. That is to say, the plurality of knitting needles 11 move on the first half knitting track 20 or the second half knitting track 21, is determined by the needle selector 14 according to the signal sent by the controller.
  • each of the plurality of sinkers 12 is arranged correspondingly to each of plurality of the knitting needles 11, the patterns of the plurality of sinkers 12 are uniform, and one side of each of the plurality of sinkers 12 facing each of the plurality of knitting needles 11 is formed with an inclined plane 121.
  • the circular knitting machine structure 10 comprises at least one sinker cam 15 guiding the plurality of sinkers 12 to move, each of the plurality of sinkers 12 is guided by the at least one sinker cam 15 to have a sinker track 22, and the sinker track 22 comprises a push-out segment 221 carried out when each of the plurality of knitting needles 11 is used for retracting and a pull-back segment 222 carried out following the push-out segment 221.
  • a push-out time point and a pull-back time point of each of the plurality of sinkers 12 are not changed due to a movement of the plurality of knitting needles 11, namely, no matter one of the plurality of knitting needles 11 moves on the first half knitting track 20 or the second half knitting track 21, the sinker 12 coordinated thereof does not change the movement.
  • each of the plurality of sinkers 12 only carries out one-dimensional movement, and namely, each of the plurality of sinkers 12 is pushed out or pulled back relative to one of the plurality of knitting needles 11 only.
  • a push-out action described by the present invention refers to that each of the plurality of sinkers 12 displaces towards feeding points of a surface yarn 30 and a bottom yarn 31, and similarly, a pull-back action described by the present invention refers to that each of the plurality of sinkers 12 displaces towards the direction distant from the feeding points of the surface yarn 30 and the bottom yarn 31. Positions of the plurality of sinkers 12 on the sinker track 22 are continuously changed and is not fixed at a single position.
  • each of the knitting needles 11 is fed with the surface yarn 30 and the bottom yarn 31 upon knitting, and a position of the surface yarn 30 in the needle hook 111 is higher than a position of the bottom yarn 31.
  • the needle selector 14 controls the position of the surface yarn 30 of one of the plurality of knitting needles 11 relative to the bottom yarn 31 to the bottom yarn 31 in a process that is used for retracting to form a loop, as shown in Fig. 6 and Fig. 7 , and a standard plating is knitted.
  • the standard plating refers to a plating of the surface yarn 30 that is located above the bottom yarn 31, when viweing a front side of a fabric.
  • the surface yarn 30 transitorily leans against the inclined plane 121 of one of the plurality of sinkers 12, and the inclined plane 121 enables the surface yarn 30 to slide, and change the position of the surface yarn 30 relative to the bottom yarn 31, as shown in Fig. 8 and Fig. 9 , and an interchanged plating is knitted.
  • the interchanged plating refers to a plating of the surface yarn 30 that is located under the bottom yarn 31, when viewing the front side of the fabric.
  • the fabric knitted by adopting the circular knitting machine structure 10 of the present invention is shown in Fig. 10 .
  • the present invention utilizes changing the position of the surface yarn 30 relative to the bottom yarn 31.
  • the position of the surface yarn 30 is obviously higher than the position of the bottom yarn 31, and the position of the surface yarn 30 has a farer distance with a pivot junction of the needle latch 112 and the needle hook 111 than the bottom yarn 31. Therefore the surface yarn 30 is located at a wider part of the needle hook 111 so that the problem of blocking of the yarns or unsmooth interchanging of the yarns can be avoided in a process of changing the position of the surface yarn 30.
  • each of the plurality of sinkers 12 is provided with a belly part 122, a nose part 123 connected with the belly part 122, and a throat part 124 between the belly part 122 and the nose part 123, the inclined plane 121 and a flat plane 125 connected with the inclined plane 121 are formed on one side of the nose part 123 which is distant from the belly part 122.
  • one of the plurality of sinkers 12 of the present invention interferes the movement of the surface yarn 30 by the inclined plane 121 of the nose part 123 to change the position of the surface yarn 30 at a time point of the push-out segment 221 converting to the pull-back segment 222 on the sinker track 22.
  • each of the plurality of cam blocks 131 included in the one or more knitting cams 13 of the present invention are different from conventional use, each of the plurality of cam blocks 131 comprises a space 132 allowing various paths to be generated, and patterns of a plurality of spaces 132 of the plurality of cam blocks 131 are not limited to the same.
  • each of the plurality of knitting needles 11 can be controlled to move on one of the first half knitting track 20, the second half knitting track 21 and a plain knitting track 23, wherein the first half knitting track 20 and the second half knitting track 21 respectively enable each of the plurality of knitting needles 11 to hook and guide the surface yarn 30 and the bottom yarn 31 to generate a plating, and the plain knitting track 23 enables each of the plurality of knitting needles 11 to hook and guide the bottom yarn 31 to generate a plating. Therefore, when each of the plurality of knitting needles 11 is implemented on the plain knitting track 23, a mesh is generated on a fabric so that the fabric has a style besides a color changing style, and a pattern of the fabric is shown in Fig.
  • a zone 40 in Fig. 12 represent the standard plating is formed and a zone 41 in Fig. 12 represent the interchanged plating is formed, and the mesh is shown as 42 in Fig. 12 of the present invention. Therefore, the present invention can thereby generate the mesh at predetermined knitting points in a process of color changing knitting to increase the variation of the fabric.
  • the one or more knitting cams 13 used for guiding the plurality of knitting needles 11 do not need to be replaced due to the design of the plurality of spaces 132, and each of the plurality of knitting needles 11 moving on one of the first half knitting track 20, the second half knitting track 21 and the plain knitting track 23 can be controlled by the needle selector 14 only.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP22177104.1A 2022-06-02 2022-06-02 Structure de machine à tricoter circulaire Pending EP4286577A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22177104.1A EP4286577A1 (fr) 2022-06-02 2022-06-02 Structure de machine à tricoter circulaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22177104.1A EP4286577A1 (fr) 2022-06-02 2022-06-02 Structure de machine à tricoter circulaire

Publications (1)

Publication Number Publication Date
EP4286577A1 true EP4286577A1 (fr) 2023-12-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22177104.1A Pending EP4286577A1 (fr) 2022-06-02 2022-06-02 Structure de machine à tricoter circulaire

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EP (1) EP4286577A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM414428U (en) * 2011-05-30 2011-10-21 Tien Yang Knitting Machinery Co Ltd Sinker structure of single sided circular knitting machine
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
US20210017680A1 (en) * 2019-07-19 2021-01-21 Pai Lung Machinery Mill Co., Ltd. Weft knitting machine knitting structure with changeable yarn positions
EP3960920A1 (fr) * 2020-08-31 2022-03-02 Precision Fukuhara Works, Ltd. Mécanisme de tricotage sur une machine à tricoter circulaire, procédé de tricotage l'utilisant, et platine pour utilisation dans celui-ci

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM414428U (en) * 2011-05-30 2011-10-21 Tien Yang Knitting Machinery Co Ltd Sinker structure of single sided circular knitting machine
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
US20210017680A1 (en) * 2019-07-19 2021-01-21 Pai Lung Machinery Mill Co., Ltd. Weft knitting machine knitting structure with changeable yarn positions
US11136698B2 (en) 2019-07-19 2021-10-05 Pai Lung Machinery Mill Co., Ltd. Weft knitting machine knitting structure with changeable yarn positions
EP3960920A1 (fr) * 2020-08-31 2022-03-02 Precision Fukuhara Works, Ltd. Mécanisme de tricotage sur une machine à tricoter circulaire, procédé de tricotage l'utilisant, et platine pour utilisation dans celui-ci

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