EP3414379A1 - Installation et procédé de tricotage pour produire un article tricoté et article tricoté produit selon un tel procédé de tricotage - Google Patents
Installation et procédé de tricotage pour produire un article tricoté et article tricoté produit selon un tel procédé de tricotageInfo
- Publication number
- EP3414379A1 EP3414379A1 EP17707641.1A EP17707641A EP3414379A1 EP 3414379 A1 EP3414379 A1 EP 3414379A1 EP 17707641 A EP17707641 A EP 17707641A EP 3414379 A1 EP3414379 A1 EP 3414379A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- knitting
- pattern
- creel
- threads
- knitted article
- 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- Withdrawn
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B23/00—Flat warp knitting machines
- D04B23/16—Flat warp knitting machines specially adapted for producing fabrics, or article blanks, of particular form or configuration
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/06—Patterned fabrics or articles
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
Definitions
- the present invention relates to a knitting installation for producing a knitted article.
- the present invention relates to a knitting process using such a knitting installation.
- the present invention relates to a knitted article produced according to such a knitting process.
- the present invention applies to the field of knitting machines rectilinear straight chain.
- the present invention can be applied to the knitting of clothing, in particular sportswear or leisure clothing.
- a straight chain knitting machine comprises i) a beam on which are wound warp threads and ii) knitting elements, configured to receive warp warp threads and to form a bottom of the knitted article to from the warp threads.
- a beam having son of different color chains for example black and white.
- the son of chains of different colors must have the same linear masses (dtex) or titrations, so that all the warp son of the bottom of the knitted article have the same tension, which avoids slackening of certain warp son.
- the knitted article has, on its width, that is to say on the width of the machine, patterns using a large number of son.
- the knitted article has pattern bands regularly repeated over its entire width.
- the knitting elements are the set of bars necessary for knitting the yarns.
- the knitting elements comprise inter alia a bar of knitting needles, one or more bar (s) of pucks, sometimes referred to as pellet leads or bar (s) of knitting, a bar of platinums, sometimes sometimes referred to as platinum sinkers, a bar of closing tabs to close the hooks of the needles.
- the present invention is intended in particular to solve, in whole or in part, the problems mentioned above.
- the subject of the present invention is a knitting installation, for producing a knitted article, the knitting installation including a straight chain knitting machine having at least one:
- knitting elements configured to receive the warp warp yarns and to form a bottom of the knitted article from the warp yarns
- a creel configured to support at least one coil of patterned yarns
- a pulling roll arranged between the creel and the knitting elements so as to pull the pattern threads, the pulling roll and the knitting elements being arranged so that the pattern threads are knitted along the warp line on the bottom the knitted article, and
- a roller actuator configured to rotate the pull roller.
- the pulling roll makes it possible to bring the or each pattern thread directly to the knitting elements, without passing through the beam or by a warping device.
- the term "between” in the feature "a draw roll arranged between the creel and the knitting elements” refers to the path of a patterned yarn, from the creel to the knitting elements. In other words, a pattern yarn from the creel first meets the draw roll and then the knitting elements.
- the creel is configured to support multiple coils of patterned yarns.
- the knitting installation comprises several beams, for example two beams.
- the beams may be parallel or collinear.
- the roll actuator is configured to rotate the draw roll so that the linear velocity of the pattern threads is between 100 mm / rack and 5000 mm / rack (where 1 rack equals 480 mesh) between the pulling roll and the knitting elements.
- the creel is configured to support between 20 and 1000 bobbins of patterned yarns.
- the creel can be configured to support 36 coils of patterned yarns, which are divided into four rows of nine storeys each.
- the knitting facility may include a plurality of creels each configured to support a plurality of patterned yarn coils.
- the pull roller extends parallel to the beam.
- the pulling roll has a diameter of between 14 mm and 152 mm.
- the knitting installation further comprises: i) warp threads which are wound on the beam, and ii) at least one spool of pattern threads which is supported on the creel.
- the warp yarns have substantially equal linear masses.
- the linear masses of the patterned yarns are greater than the linear masses of the warp yarns.
- the patterned yarns may form a relief pattern layer with respect to the warp yarns forming the knitted article background.
- the linear densities of warp yarns and pattern yarns knitted on a needle may range from 20 dtex to 1000 dtex.
- the threads forming the bottom of the knitted article may be rigid or extensible.
- the yarns forming the bottom may comprise a given percentage of elastane.
- the knitting installation further comprises a knit front bar and a knit back bar, the knit front bar, the knit back bar, the draw roll and the knitting elements being arranged of so that:
- the bottom of the knitted article can be knitted on the knit back bar, and the pattern yarns are knitted on the knit front bar.
- front and back knitting bars allow to knit a portion of the bottom of the knitted article.
- the straight chain knitting machine may comprise three or four knit bars.
- the knitting installation further comprises a pressure roller arranged to press the pattern threads against the pulling roll so as to prevent slippage of the design threads on the pulling roll.
- such a pressure roller makes it possible to tension the pattern threads correctly, because the pressure roller prevents the pattern threads from slipping, and thus from relaxing, on their path towards the knitting elements.
- the retaining device comprises friction strips placed on the pulling roll, the friction strips being composed of a material having a coefficient of friction greater than the pulling roller, for example of a non-slip elastomer.
- the knitting installation further comprises at least one guide arranged to guide each pattern thread between the creel and the pulling roll.
- said at least one guide comprises a grommet arranged to guide each pattern thread coming from the rear face towards the pulling roll.
- said at least one guide comprises at least one intermediate comb configured to receive individually each patterned thread.
- the intermediate comb can be mechanically linked to the creel.
- the creel and the draw roll are arranged so that the pattern threads pass over the beam and knitting elements.
- the creel comprises at least one tensioning device arranged near the at least one coil of patterned yarns.
- such a tensioning device makes it possible to tension a pattern thread upstream of the pulling roller and allows each pattern coil to have a clean, possibly separate or identical linear density of the linear density of the other pattern coils.
- the tensioning device comprises a tensioning support, a spring which is configured to work in compression, pressure cups, guidewires and a set screw.
- the creel comprises a plurality of tensioning devices arranged respectively close to several reels of patterned yarns, in the case where the creel is configured to support a plurality of reels of patterned yarns.
- said at least one tensioning device is configured to tension a patterned yarn with a tension, measured between each tensioning device and the pulling roller, which is approximately equal to: type of voltage pattern wire
- Pes 75/36 den textured where: Pes means polyester; den means denier; "30/10" means 30 deniers / 10 filaments, with:
- the number 30 indicating the basis weight for 9000 linear meters of yarn and the number indicating the number of filaments making up the yarn.
- the tensioning devices ensure proper tensioning of the patterned threads between each patterned yarn package and the drawroll.
- the creel is independent of the knitting machine rectilinear chain.
- the creel is separated from the straight chain knitting machine.
- the creel is movable with respect to the knitting machine.
- the creel is distant from the beam.
- the pattern threads are unwound separately from the warp threads which form the bottom of the knitted article and which are unwound from the beam.
- the creel is removable.
- the creel has a front face, which is turned towards the straight chain knitting machine, and a rear face, which is opposite to the front face.
- the creel is configured to support multiple coils of patterned yarns.
- the knitting installation further comprises: i) a beam actuator configured to rotate the beam, and ii) a control unit configured to adapt the speed. rotation of the roller actuator at the rotational speed of the beam actuator.
- the knitting installation further comprises a feeler roll arranged against the pull roll so as to measure the rotational speed of the pulling roll.
- the roller actuator is a rotary motor.
- the beam actuator is a rotary motor.
- control unit is programmed to adapt the speed of rotation of the roll actuator to the structure of the mesh to be formed on the knitted article.
- the present invention relates to a knitting method for producing a knitted article, the knitting method comprising the steps of:
- the subject of the present invention is a knitted article produced according to a knitting process according to the invention, the knitted article having a bottom composed of warp yarns and at least one strip of patterns extending along the line of knitting. chain (Z) of the knitted article, and above the bottom characterized in that the pattern band is composed of at least one son of patterns and at most 100 son of patterns.
- the pattern strip is formed from yarns of patterns of their own linear density, which may be distinct or identical from the linear density of the other pattern coils.
- the knitted article may have in its width a single band of patterns of a few patterned yarns and each pattern yarn has its own linear density, where appropriate distinct or identical from the linear density of the other pattern bobbins.
- the pattern threads form a relief with respect to the bottom of the knitted article.
- the pattern son do not form relief from the bottom of the knitted article, but simply a strip of the same thickness as the rest of the knitted article.
- the pattern threads form zigzag patterns.
- Figure 1 is a schematic perspective view of the rear of a knitting installation according to the invention.
- Figure 2 is a schematic perspective view of the front of the knitting installation of Figure 1;
- Figure 3 is a schematic perspective view, at an angle different from Figure 1, of a portion of the rear of the knitting installation of Figure 1;
- FIG. 4 is a diagrammatic perspective view from above of part of the front of the knitting installation of FIG. 2;
- Figure 5 is a view of detail V in Figure 4, at a slightly different perspective angle
- FIG. 6 is a schematic view of a portion of a knit bar fitted to the knitting installation of FIG. 1;
- Figure 7 is a schematic view of a pull roller equipping the knitting installation of Figure 1;
- Figure 8 is a schematic view of a pressure roller fitted to the knitting installation of Figure 1;
- FIG. 9 is a diagrammatic sectional view of knitting elements belonging to the knitting installation of FIG. 1;
- Figure 13 is a view similar to Figure 1 1 and illustrating different patterns of Figure 1 1;
- Figure 14 is a schematic view of a knitted article according to a first embodiment of the invention.
- Fig. 15 is a schematic view of a knitted article according to a second embodiment of the invention.
- Figures 1 to 10 illustrate a knitting installation 1 for producing a knitted article 100, variants of which are illustrated in Figures 14 and 15.
- the knitting plant 1 includes a straight chain knitting machine 2.
- the straight chain knitting machine 2 comprises a beam 4 and knitting elements 5.
- the beam 4 is configured for the winding of warp yarns. Beam 4 is rotatable about a beam axis X4, so as to unwind warp son.
- the knitting elements 5 are configured to receive the warp yarns 6 of the beam 4 and to form a bottom 102 of the knitted article 100 from the warp yarns 6.
- the knitting plant 1 comprises warp yarns 6 which are wound on the beam 4 and which have equal linear masses.
- the knitting apparatus 1 further comprises a creel 8, a draw roll 14 and a roll actuator 16.
- the creel 8 is configured to support a plurality of coils 10 of patterned yarns 12.
- the creel 8 is here independent, and therefore separated, from the straight chain knitting machine 2.
- the creel 8 has a front face 8.5, which is turned towards the straight chain knitting machine 2, and a rear face 8.7, which is opposite to the front side 8.5.
- the creel 8 supports 36 coils 10 of pattern son 12, which are divided into four rows of nine floors each.
- the creel 8 is here movable and removable from the straight chain knitting machine 2.
- the creel 8 is distant from the beam 4.
- the pattern son 12 are unwound separately from the warp son 6 which form the bottom of the article knitted 100 and which are unwound from the beam 4.
- the pulling roll 14 is arranged between the creel 8 and the knitting elements 5 so as to pull the pattern threads 12.
- the pulling roll 14 extends parallel to the beam 4.
- the pulling roll 14 allows bringing the or each pattern thread 6 directly to the knitting elements 5, without passing through the beam 4 or by a warping device.
- the pulling roll 14 and the knitting elements 5 are arranged so that the pattern threads 12 are knitted along the warp line Z on the bottom 102 of the knitted article 100.
- the pulling roll here has a diameter equal to 152 mm.
- the roller actuator 16 is configured to rotate the drawroll roller 14 about a draw axis X14 which is parallel to the beam axis X4.
- the roller actuator 16 is configured to rotate the pull roller 14 so that the linear speed of the pattern yarns 12 is, for example, 1000 mm / rack (where 1 rack equals 480 mesh) between the pulling roller 14 and the knitting elements 5.
- the knitting elements 5 comprise a needle bar 5.1 comprising a row of knitting needles, guide bars 5.2 (sometimes referred to as pellet caps), a bar of plates 5.3 (sometimes called platen sinkers), a closing tab bar 5.4 to close the needle hooks of the needle bar 5.1.
- the straight chain knitting machine 2 comprises a drawing mechanism 9 which forms the structure of the knitted article 100.
- the drawing mechanism 9 comprises cams or disks with drawings 9.1 for moving the guide bars 5.2, a slider bar 9.2, a gear 9.3 for driving the drawing discs 9.1 and a drive shaft 9.5 for driving the gear 9.3.
- the knitting installation 1 further comprises a knit front bar 20 and a knit back bar 22.
- the front 20 and back 22 knit bars allow to knit a portion of the bottom of the knit article.
- the knit front bar 20, the knit back bar 22, the draw roll 14 and the knitting elements 5 are arranged so that:
- the bottom 102 of the knitted article 100 can be knitted on the knit back bar 22, and
- the pattern threads 12 are knitted on the knit front bar 20.
- the knitting installation 1 further comprises a pressure roller 24 arranged to press the pattern son 12 against the draw roller 14 so as to prevent slippage of the pattern son 12 on the pulling roller 14.
- the pressure roller 24 makes it possible to tension the pattern threads 1 2 correctly, because the pressure roller 24 prevents the pattern threads 12 from sliding on the pulling roll 14, and thus from relaxing, in their path towards the knitting elements 5.
- the knitting installation 1 further comprises two guides 26 and 28 which are arranged to guide each pattern thread 12 between the creel 8 and the pulling roll 14.
- the guide 26 comprises an intermediate comb configured to individually receive each patterned wire 12.
- the intermediate comb is here mechanically linked to the creel 8.
- the guide 28 comprises a eyelet bar arranged to guide to the draw roller 14 each pattern of wire 12 from the rear face 8.7.
- the creel 8 and the draw roller 14 are here arranged so that the pattern son 12 pass over the beam 4 and knitting elements 5.
- the creel 8 further comprises tensioning devices 30 which are arranged near the bobbins 10 of patterned threads 12. Each tensioning device 30 makes it possible to tension a pattern thread 12 upstream of the pulling roller 14.
- the tensioning device 30 comprises a tensioning support 30.1, a spring which is configured to work in compression, pressure cups 30.3, guidewire eyelets 30.4 and a set screw 30.5.
- the tensioning device 30 is configured to tension a patterned yarn with a tension, measured between each tensioning device 30 and the pulling roller 14, which is approximately equal to:
- Pes means polyester; den means denier; "30/10" means 30 deniers / 10 filaments, with:
- the knitting installation 1 comprises a feeler roll 17 which is arranged against the pull roller 14 so as to measure the speed of rotation of the pulling roller 14.
- the knitting installation 1 further comprises:
- a beam actuator 31 configured to rotate the beam 4
- a control unit 32 configured to adapt the rotational speed of the roller actuator 16 to the rotational speed of the beam actuator 31.
- the roller actuator 16 here comprises a rotary motor, not shown.
- the beam actuator 31 here comprises a rotary motor, not shown.
- the control unit 32 is programmed to adapt the rotational speed of the roller actuator 16 to the structure of the mesh to be formed on the knitted article 100.
- the knitting installation 1 When the knitting installation 1 is in use, it operates according to a knitting method according to the invention, by means of the control unit 32, to produce knitted articles 100.
- the knitting process comprises the steps:
- the knitting installation 1 produces knitted articles 100.
- the knitted article 100 has:
- each strip of patterns 12.5 here forms a relief on the bottom 102 of the knitted article 100.
- the pattern son 12 do not form relief from the bottom of the knitted article 102, but simply a strip of the same thickness as the rest of the knitted article 100.
- the present invention is not limited to the particular embodiments described in the present patent application, nor to embodiments within the scope of those skilled in the art. Other embodiments may be envisaged without departing from the scope of the invention, from any element equivalent to an element indicated in the present patent application.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Knitting Of Fabric (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1651070A FR3047492B1 (fr) | 2016-02-10 | 2016-02-10 | Installation et procede de tricotage pour produire un article tricote et article tricote produit selon un tel procede de tricotage |
PCT/FR2017/050274 WO2017137691A1 (fr) | 2016-02-10 | 2017-02-07 | Installation et procédé de tricotage pour produire un article tricoté et article tricoté produit selon un tel procédé de tricotage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3414379A1 true EP3414379A1 (fr) | 2018-12-19 |
Family
ID=55542973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17707641.1A Withdrawn EP3414379A1 (fr) | 2016-02-10 | 2017-02-07 | Installation et procédé de tricotage pour produire un article tricoté et article tricoté produit selon un tel procédé de tricotage |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3414379A1 (fr) |
CN (1) | CN108779592A (fr) |
FR (1) | FR3047492B1 (fr) |
WO (1) | WO2017137691A1 (fr) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2888815A (en) * | 1959-06-02 | Embroidered warp-knit tricot fabric | ||
GB966612A (en) * | 1961-01-11 | 1964-08-12 | Liebrandt Karl | Method and machine for the production of jacquard patterned fabrics |
DE3529287C1 (de) | 1985-08-16 | 1986-12-18 | Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen | Legevorrichtung mit umlaufenden Fadenlegern fuer Kettenwirkmaschinen |
SE8900534D0 (sv) * | 1989-02-16 | 1989-02-16 | Iro Ab | Anordning foer att i eller vid textilmaskin styra och/eller oevervaka i foersta hand fournisoersorgan/fournisoersfunktioner |
DE4202981C1 (fr) * | 1992-02-03 | 1993-07-22 | Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen, De | |
WO2007000173A1 (fr) | 2005-06-28 | 2007-01-04 | Karl Mayer Textilmaschinenfabrik Gmbh | Metier a tricoter |
CN101608369B (zh) | 2008-06-17 | 2012-08-15 | 卡尔迈耶(中国)有限公司 | 花式轴经整经装置 |
CN203411748U (zh) * | 2013-04-26 | 2014-01-29 | 常州市武进五洋纺织机械有限公司 | 适于双面成形提花织物编织的经编机 |
CN204080336U (zh) | 2014-08-27 | 2015-01-07 | 江苏润源控股集团有限公司 | 一种经编机积极送纱纱架 |
-
2016
- 2016-02-10 FR FR1651070A patent/FR3047492B1/fr not_active Expired - Fee Related
-
2017
- 2017-02-07 CN CN201780010932.6A patent/CN108779592A/zh active Pending
- 2017-02-07 WO PCT/FR2017/050274 patent/WO2017137691A1/fr active Application Filing
- 2017-02-07 EP EP17707641.1A patent/EP3414379A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR3047492A1 (fr) | 2017-08-11 |
CN108779592A (zh) | 2018-11-09 |
FR3047492B1 (fr) | 2018-12-07 |
WO2017137691A1 (fr) | 2017-08-17 |
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