EP4306698A1 - Procédé de tricotage d'un tissu tricoté en dentelle au poinçon produit par machine à tricoter rectiligne - Google Patents

Procédé de tricotage d'un tissu tricoté en dentelle au poinçon produit par machine à tricoter rectiligne Download PDF

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Publication number
EP4306698A1
EP4306698A1 EP22767158.3A EP22767158A EP4306698A1 EP 4306698 A1 EP4306698 A1 EP 4306698A1 EP 22767158 A EP22767158 A EP 22767158A EP 4306698 A1 EP4306698 A1 EP 4306698A1
Authority
EP
European Patent Office
Prior art keywords
needle
yarn
knitting
pattern
lace
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
EP22767158.3A
Other languages
German (de)
English (en)
Inventor
Masato Morita
Yoshinori Shimasaki
Masanori Goto
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.)
Shima Seiki Mfg Ltd
Original Assignee
Shima Seiki Mfg 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 Shima Seiki Mfg Ltd filed Critical Shima Seiki Mfg Ltd
Publication of EP4306698A1 publication Critical patent/EP4306698A1/fr
Pending 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
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D04B15/36—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B7/00—Flat-bed knitting machines with independently-movable needles
    • D04B7/24—Flat-bed knitting machines with independently-movable needles for producing patterned fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/102—Patterned fabrics or articles with stitch pattern
    • 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
    • D04B15/36—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines
    • D04B15/362—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines with two needle beds in V-formation
    • D04B15/365—Cam systems or assemblies for operating knitting instruments for flat-bed knitting machines with two needle beds in V-formation with provision for loop transfer from one needle bed to the other
    • 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
    • D04B15/48—Thread-feeding devices
    • D04B15/52—Thread-feeding devices for straight-bar knitting machines
    • 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
    • D04B15/56—Thread guides for flat-bed knitting machines
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D04B35/06—Sliding-tongue needles
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/01—Surface features
    • D10B2403/011—Dissimilar front and back faces
    • D10B2403/0114—Dissimilar front and back faces with one or more yarns appearing predominantly on one face, e.g. plated or paralleled yarns

Definitions

  • the present invention relates to a method for knitting a punch lace knitted fabric by a flat knitting machine.
  • a punch lace knitted fabric 53 is a knitted fabric in which a base 55 in which knit loops are formed of a lace yarn 49 as a whole, a pattern portion 57 in which knit loops are formed in a state where a pattern yarn 51 is aligned with the lace yarn 49, and a portion other than the pattern portion where the pattern yarn 51 is formed by miss.
  • the punch lace is sometimes referred to as a watermark pattern.
  • Patent Document 1 discloses a method of knitting a punch lace knitted fabric using a flat knitting machine.
  • the knitting method described in Patent Document 1 is a method for knitting by a flat knitting machine equipped with latch needles as a knitting needle, and there is no disclosure of a method for knitting by a flat knitting machine equipped with compound needles that relatively moves a needle main body with a hook and a slider to open and close the hook.
  • Patent Document 1 EP 3556921 A1
  • An object of the present invention is to provide a method for knitting a punch lace knitted fabric with a flat knitting machine equipped with compound needles.
  • a base and a pattern portion are formed in plurals continuously in the course direction by repeatedly performing the above steps.
  • the compound needle control unit is configured by a cam system mounted on a carriage of the flat knitting machine.
  • the cam system includes a slider switching presser that sinks a butt of the slider in a needle groove by a pressing action, and a slider side raising cam that acts on the butt of the slider; and the pattern yarn forms knit loops with the lace yarn or only the pattern yarn is missed by the slider switching presser and the slider side raising cam.
  • the punch lace knitted fabric can be knitted by combining the advancing and retreating control of the needle main body and the slider and the pushing down of the knitting yarn by the loop presser according to the needle selection of the knitting needle even in the flat knitting machine equipped with the compound needle.
  • the course knitting of the punch lace knitted fabric can be completed by carrying out the advancing and retreating control of the knitting needle in the single cam system, so that the knitting can be efficiently carried out.
  • a method of knitting a punch lace knitted fabric using a two-bed flat knitting machine will be described.
  • a plurality of compound needles are arranged as knitting needles 1 on a needle bed 2 of the flat knitting machine.
  • a carriage (not illustrated) that includes a cam system 10 reciprocates on the needle bed to operate knitting needles 1 advance and retreat and a plurality of yarn feeders that feed knitting yarns to the knitting needles 1 are provided on the flat knitting machine.
  • the knitting needle 1 the same configuration as that of the known flat knitting machine disclosed in Japanese Patent No. 2917146 , as the presser mounted on the cam system 10, the needle bed and the needle selection mechanism, the same configuration as that of Japanese Patent No. 5057996 , and as the loop presser 9 for pressing the knitting yarn, the same configuration as that of the known flat knitting machine disclosed in Japanese Patent No. 4102430 can be applied, and thus the description thereof will be omitted here.
  • the knitting needle 1 includes a needle main body 3 having a hook 7 at a distal end, and a slider 5 that moves relative to the needle main body 3 to open and close the hook 7.
  • Each of the needle main body 3 and the slider 5 is provided with a butt, and the needle main body 3 and the slider 5 advance and retreat with respect to the needle bed gap upon receiving the action of the cam system 10 to be described later.
  • Fig. 1 is a schematic view illustrating a cam system 10 mounted on a carriage.
  • the cam system 10 is configured to be able to carry out knit tuck miss, but may be a composite cam system that can transfer stitches in addition to such a configuration.
  • a plurality of cam systems 10 may be mounted on the carriage.
  • the cam system 10 functions as a compound needle control unit that controls advancing and retreating movement of the needle main body 3 and the slider 5 of the knitting needle 1.
  • Fig. 1 shows a state in which the cam system 10 travels leftward to perform knitting.
  • the cam system 10 includes a presser unit 13 that acts on a butt (not illustrated) of a select jack, a needle main body control cam unit 21 that acts on the butt of the needle main body 3 of the knitting needle 1, and a slider control cam unit 31 that acts on the butt of the slider 5.
  • the presser unit 13 is provided in correspondence with the butt of the select jack selected at three positions of A, H, and B by a needle selection mechanism (not illustrated) provided below the presser unit 13.
  • a fixed welt presser 15 is provided at position B, a tuck presser 17 is provided at position H, and a pair of left and right slider switching pressers 19 is provided at position A.
  • the tuck presser 17 and the slider switching presser 19 can be controlled to protrude and retreat by an electromagnet, and can be switched to an acting position or a non-acting position.
  • the presser presses the butt of the select jack accommodated in the needle groove and sinks the butt into the needle groove. Therefore, the butts of the needle main body 3 and the slider 5 accommodated below the select jack also sink in the needle groove, and thus are not subjected to the action of the cam.
  • the slider switching presser 19 of the present embodiment acts on the butt of the select jack, but for example, in a case where the slider has two butts (first and second butts) in the front and back as in Japanese Patent Publication No. 3292836 , the slider switching presser may act on the first butt (auxiliary butt) on the front side to sink the second butt.
  • the needle main body control cam unit 21 is provided above the presser unit 13.
  • a needle raising cam and a bridge cam 25 are provided at the center, and a stitch cam 27 is provided on the left and right sides with the needle raising cam 23 and the bridge cam 25 interposed therebetween.
  • the needle raising cam 23 acts as a raising cam that acts on the butt of the needle main body 3 to raise the needle main body 3 to the knit position.
  • the bridge cam 25 pulls down the butt of the needle main body 3 and guides the butt to the subsequent stitch cam 27.
  • the slider control cam unit 31 is provided above the needle main body control cam unit 21.
  • a slider raising cam 33 is provided at the center, and a slider side raising cams 35 is provided on the right and left sides thereof.
  • the slider side raising cam 35 and the slider switching presser 19 are provided in the same phase in the advancing direction of the carriage. Note that in the slider switching presser 19, only the trailing side in the carriage advancing direction is the acting position, and the leading side is the non-acting position.
  • the knitting needle 1 at this position is not subjected to the actions of the needle raising cam 23 and the slider raising cam 33, and thus the knitting needle does not form the stitch (miss).
  • the butt passes the same route as when the tuck presser 17 is non-acting at position H described above.
  • the slider switching presser 19 on the trailing side is at the acting position at position A, the butt of the needle main body 3 and the butt of the slider 5 rise along the inclined surfaces of the needle raising cam 23 and the slider center raising cam 33, respectively, and then, receives the pressing action of the slider switching presser 19, so that the butt of the slider 5 moves straight without engaging with the slider side raising cam 35 and lowers upon receiving the action of the slider guide cam 39.
  • the butts of the needle main body 3 and the slider 5 pass through a route 40 indicated by a solid line (knit).
  • the loop presser 9 is provided on an auxiliary bed (not illustrated) above the needle bed, and acts to advance and retreat with respect to the needle bed gap by a loop presser control cam (not illustrated) mounted on the carriage, and lower at above the needle bed gap to push down the knitting yarn. It is also possible to provide the loop presser 9 for every plurality of knitting needles, but preferably, if the loop presser 9 is provided so as to correspond to every knitting needle 1, the pattern portion of the punch lace knitted fabric can be formed with any knitting needle. That is, there is an advantage that the restriction of the pattern is eliminated.
  • the yarn feeder is illustrated at the upper part of Fig. 1 .
  • the leading side in the advancing direction of the carriage is the lace yarn feeder 45, and the trailing side is the pattern yarn feeder 47.
  • the lace yarn feeder 45 precedes the pattern yarn feeder 47 such that the lace yarn 49 extending to the knitting needle 1 is positioned lower than the pattern yarn 51, and the height of the lace yarn feeder 45 is set low.
  • the heights of the respective yarn feeders may be the same if, for example, the lace yarn feeder 45 is made to greatly precede.
  • the lace yarn 49 Since the lace yarn 49 is positioned below the pattern yarn 51, the lace yarn may be referred to as a lower yarn, and the pattern yarn may be referred to as an upper yarn.
  • the transparent nylon-based lace yarn is used as the lace yarn 49, a visual effect such as floating of the pattern yarn portion can be obtained, but the present invention is not limited thereto, and other types of yarns may be used.
  • a method for knitting the punch lace knitted fabric carried out using the flat knitting machine having such a configuration will be described below.
  • the knitting needle 1 at position A passes through the route 40 and the knitting needle 1 at position H passes through the route 41 will be described as an example.
  • the knitting needle 1 is selected at position H to knit the base 55 of the knitted fabric with the lace yarn 49, and the knitting needle 1 for knitting the pattern portion 57 is selected at position A.
  • the knitting needle selected at position A is referred to as the pattern knitting needle (hereinafter, knitting needle P)
  • the knitting needle selected at position H is referred to as the base knitting needle (hereinafter, knitting needle B).
  • the slider switching presser 19 on the leading side and the tuck presser 17 are set to the non-acting position
  • the slider switching presser 19 on the trailing side is set to the acting position.
  • Fig. 2(a) illustrates a state of the needle bed gap at this time.
  • the needle main body 3 and the slider 5 are in a state in which the hook 7 is opened with a distance between the distal ends of the hook 7 and the slider 5 due to a difference in the advancing amount by the cam.
  • the lace yarn 49 is within the advancing and retreating path of the hook 7, and the pattern yarn 51 is above the advancing and retreating path of the hook 7.
  • the loop presser 9 is advanced to a position further above the pattern yarn 51.
  • the sliders 5 of the knitting needle B and the knitting needle P take different routes. Since the slider switching presser 19 is set at the acting position at position A, the slider 5 of the knitting needle P does not receive the action of the slider side raising cam 35 and passes through the route 40 forming the knit loop. On the other hand, since there is no presser at position H, the slider 5 of the knitting needle B is raised to position Y through the route 41 by the action of the slider side raising cam 35.
  • Fig. 2(b) shows the state of the needle bed gap at this time, and the distal end of the slider 5 of the knitting needle B enters between the lace yarn 49 and the pattern yarn 51. At this time, the loop presser 9 is lowered to a position to abut on the pattern yarn 51.
  • Fig. 2(c) illustrates a state of the needle bed gap of the knitting needle P at position A, which is substantially the same state as Fig. 2(a) .
  • Fig. 2(d) illustrates a state of the needle bed gap of the knitting needle B at this time.
  • the lace yarn 49 is held in the hook 7, and the loop presser 9 further lowered to push down the pattern yarn 51, but since the hook 7 of the knitting needle B is already closed by the slider 5, the hook 7 does not bite the pattern yarn 51. Therefore, in Fig. 2(d) , the pattern yarn 51 is omitted.
  • Fig. 2(e) illustrates a state of the needle bed gap of the knitting needle P at position Z.
  • the knitting needle P at position A pulls in both the lace yarn 49 and the pattern yarn 51 to form a knit loop.
  • the knitting needle B located at position H pulls only the lace yarn 49 into the hook 7, and a knit loop of only the lace yarn 49 is formed as the pattern yarn 51 is located outside the closed hook 7, and the pattern yarn 51 is missed.
  • the base 55 of the knitted fabric 53 is formed by the lace yarn 49, and the pattern yarn 51 is in a state in which only a portion forming the pattern portion 57 forms knit loops while being aligned with the lace yarn 49 and in a portion other than the pattern portion 57 the pattern yarn 51 does not form a loop and is missed thus extending horizontally.
  • the course knitting of the punch lace knitted fabric can be completed by carrying out the advancing and retreating control of the knitting needle 1 in the single cam system 10, and the plurality of combinations of the base 55 and the pattern portion 57 can be efficiently knitted in continuation in the course direction. Furthermore, if the base 55 and the pattern portion 57 are arranged in combination in the wale direction, a wide variety of pattern patterns can be formed in the knitted fabric 53.
  • each yarn feeder 45, 47 may not only be a type that moves while being entrained by the carriage, but also a flat knitting machine of a type in which the yarn feeder itself includes an independent drive source and self-travels independently of the carriage.
  • the knitted fabric in which the relationship between the lace yarn and the pattern yarn in the punch lace knitted fabric is interchanged can be knitted by interchanging the relationship of the yarn feeder on the leading side as the lower yarn and the yarn feeder on the trailing side as the upper yarn.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP22767158.3A 2021-03-10 2022-03-08 Procédé de tricotage d'un tissu tricoté en dentelle au poinçon produit par machine à tricoter rectiligne Pending EP4306698A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021038732 2021-03-10
PCT/JP2022/010081 WO2022191204A1 (fr) 2021-03-10 2022-03-08 Procédé de tricotage d'un tissu tricoté en dentelle au poinçon produit par machine à tricoter rectiligne

Publications (1)

Publication Number Publication Date
EP4306698A1 true EP4306698A1 (fr) 2024-01-17

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ID=83226791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22767158.3A Pending EP4306698A1 (fr) 2021-03-10 2022-03-08 Procédé de tricotage d'un tissu tricoté en dentelle au poinçon produit par machine à tricoter rectiligne

Country Status (5)

Country Link
EP (1) EP4306698A1 (fr)
JP (1) JPWO2022191204A1 (fr)
KR (1) KR20230153473A (fr)
CN (1) CN117043404A (fr)
WO (1) WO2022191204A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2917146B2 (ja) 1997-07-11 1999-07-12 株式会社島精機製作所 編目形成方法及び該編目形成のための横編機
JP3292836B2 (ja) 1998-05-06 2002-06-17 株式会社島精機製作所 横編機
KR100547505B1 (ko) 2001-08-24 2006-01-31 가부시키가이샤 시마세이키 세이사쿠쇼 루프 프레서, 루프 프레서를 구비하는 횡편기 및 루프 프레서를 이용하는 편성포 편성 방법
JP5057996B2 (ja) 2005-12-27 2012-10-24 株式会社島精機製作所 横編機の選針装置
CN101448987B (zh) * 2006-05-17 2011-04-20 株式会社岛精机制作所 嵌花花纹针织物的编织方法及横机
EP3556921B1 (fr) 2018-04-16 2021-09-01 KARL MAYER STOLL R&D GmbH Machine à tricoter rectiligne et procédé de fabrication d'un tricot à motifs filigranes

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Publication number Publication date
JPWO2022191204A1 (fr) 2022-09-15
CN117043404A (zh) 2023-11-10
WO2022191204A1 (fr) 2022-09-15
KR20230153473A (ko) 2023-11-06

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