EP3031967B1 - Maschine und Verfahren zur Herstellung von Maschenware - Google Patents

Maschine und Verfahren zur Herstellung von Maschenware Download PDF

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Publication number
EP3031967B1
EP3031967B1 EP14197425.3A EP14197425A EP3031967B1 EP 3031967 B1 EP3031967 B1 EP 3031967B1 EP 14197425 A EP14197425 A EP 14197425A EP 3031967 B1 EP3031967 B1 EP 3031967B1
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EP
European Patent Office
Prior art keywords
spinning
loop
installations
yarn
fibre strand
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.)
Active
Application number
EP14197425.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3031967A1 (de
Inventor
Wolfgang Dr. Bauer
Bernd Boss
Thomas DZIADOSZ
Axel Flad
Sabine Käse
Christine Maier
Manuel Schwab
Josef Vennemann
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.)
Sipra Patententwicklungs und Beteiligungs GmbH
Original Assignee
Sipra Patententwicklungs und Beteiligungs GmbH
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
Priority to EP14197425.3A priority Critical patent/EP3031967B1/de
Application filed by Sipra Patententwicklungs und Beteiligungs GmbH filed Critical Sipra Patententwicklungs und Beteiligungs GmbH
Priority to MX2017007552A priority patent/MX2017007552A/es
Priority to JP2017527741A priority patent/JP6794358B2/ja
Priority to BR112017010848-8A priority patent/BR112017010848A2/pt
Priority to CA2970406A priority patent/CA2970406A1/en
Priority to PCT/EP2015/076334 priority patent/WO2016091521A1/de
Priority to CN201580067037.9A priority patent/CN107002321B/zh
Priority to KR1020177013658A priority patent/KR20170093804A/ko
Priority to US15/532,223 priority patent/US10443157B2/en
Priority to TW104140140A priority patent/TWI712710B/zh
Priority to ARP150104028A priority patent/AR103142A1/es
Publication of EP3031967A1 publication Critical patent/EP3031967A1/de
Application granted granted Critical
Publication of EP3031967B1 publication Critical patent/EP3031967B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/14—Circular knitting machines with independently-movable needles with provision for incorporating loose fibres, e.g. in high-pile 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
    • D04B1/02—Pile fabrics or articles having similar surface features
    • D04B1/025—Pile fabrics or articles having similar surface features incorporating loose fibres, e.g. high-pile fabrics or artificial fur
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/74—Rollers or roller bearings
    • 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
    • D04B1/12—Patterned fabrics or articles characterised by thread material
    • 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
    • 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
    • D04B35/22—Devices for preparatory treatment of threads

Definitions

  • the invention relates to a machine for producing a knitted fabric having a plurality of knitting elements and having at least one knitting unit, which is associated with a spinning device which produces a fiber strand or a yarn from a roving and this feeds several mesh forming elements, a method for producing a knitted fabric and a knit fabric made by the method.
  • Knitting machines in particular circular knitting machines, have been known for some time, in which the knitting needles are supplied with a fiber structure or a yarn which is produced from a roving directly from spinning machines associated with the knitting systems of the knitting machine. That's how it describes WO 2004/079068 A2 a knitting machine, draw in the drafting a roving to a fiber structure desired fineness and feed directly to the knitting needles.
  • the knitted fabric made of such a fiber structure is characterized by an extreme softness and a very pleasant feel.
  • Spinning machines on the machine each produce a conventional or unconventional yarn and supply the knitting needles, if knitted products are to be produced with a slightly higher stability.
  • the WO 2009/026734 A1 describes a narrow drafting system for knitting machines in which the apron rollers and a pair of outfeed rollers are driven by separate motors.
  • the apron rollers are drivingly coupled to an input roller pair.
  • the knitting machines that are equipped with these drafting systems however, control technology can only produce striping pattern by the production of different thickness fiber or yarns, but no patterns in which the Faser notion- or Garndicke changed within a course when all drawers stretch the same roving , This has hitherto only been possible if the individual drafting systems are fed with rovings of different thicknesses. When switching to another pattern but then the roving must be replaced on the machine, which is very expensive.
  • a folding drafting system for spinning knitting machines which has a high building density and allows new patterning possibilities.
  • a folding draft double of the machine can be controlled during the course of the machine with information according to the pattern, which act on the fineness of the yarn produced.
  • the DE 10 2006 037 714 A1 describes a spinning-knitting machine for making a knitwear with high uniformity. For this purpose, the speed of an output roller pair of a drafting device or a transport element for the warped thread is controlled so that the desired fineness of the fiber strand or yarn is achieved. To control the speed, the actual value of the fineness of the fiber structure is recorded.
  • this invention has the object to enable the rational production of knitwear with any pattern of stitches, which are formed of different thickness fiber composites or yarns.
  • the object is achieved by a machine for producing knitwear having the features of claim 1.
  • a fiber structure or yarn of different thickness can be fed to each knitting element and formed into stitches by the knitting elements. This makes it possible to produce knitted fabrics with a pattern in which the thickness of the yarn or fiber composite also varies in course direction.
  • Roving can be a flyer-Lunte, a card sliver or a band conveyor used.
  • At least two knitting points are provided, each associated with a spinning device, wherein the thicknesses of the fiber composites or yarns produced by two adjacent spinning devices may be different.
  • Each spinning device may preferably have its own drive device. However, it is also possible to couple a plurality of spinning devices via gear, whose transmission ratio is adjustable, and to provide a common drive means for these spinning devices.
  • the drive means of the spinning means are controllable such that the thickness of the fiber structure or yarn varies between the knitting elements supplied by the same spinning device, so that patterns can be produced in which the fiber composite or yarn thickness varies from one stitch to the next within a course.
  • the drive devices of the spinning devices can even be controlled in such a way that the thickness of the produced fiber composite or yarn is different for all knitting elements supplied by the same spinning device.
  • a spinning device can supply a single knitting point or even several knitting points with fiber structure.
  • the spinning devices can have drafting arrangements with a plurality of roller pairs, wherein at least two of the roller pairs each have their own drive device and these drive devices can be controlled independently of one another.
  • the spinning devices can have friction spinning devices with at least one feed roller whose speed can be controlled in relation to a pair of take-off rollers.
  • the ratio of the peripheral speed of the feed roller to the speed of the trigger here determines the thickness of the yarn produced.
  • spinning devices can also attach, for example, to circular knitting machines with small diameter needle cylinders, in which the space would not be sufficient at a small distance to the Nadelzylinderrise, for each knitting point to provide a spinning device.
  • a twist element If a twist element is provided, a twist can be generated in a fiber structure, so that a transport-stable intermediate yarn is formed. The twist dissolves again on the way between the twist element and the knitting point, so that the knitted fabric is formed with a fiber structure with parallel fibers, which results in the desired soft hand of the knit fabric.
  • the machine according to the invention is a circular knitting machine with a rotatably drivable needle cylinder and a plurality of knitting points, wherein each stitch forming point is associated with a spinning device.
  • the rotational speed of the needle cylinder can be controlled in a conventional manner. Further, it may have a single needle selection. If a dial is also provided on the machine, single or double-sided knits can be produced.
  • the invention also relates to a method for producing a knitted fabric having the features of claim 10.
  • the thickness of the fiber strand or yarn can be adjusted to the exact mesh. This makes it possible to produce all conceivable patterns based on the variation of the fiber strand or yarn thickness in a knit fabric.
  • the speeds of the spinning devices can be changed in any time course to achieve a specific pattern.
  • the velocity changes may be repeated at regular intervals to produce regular patterns such as waves, stripes or marigolds.
  • the time intervals in which the speeds assume a specific value can always be chosen the same or varied regularly or irregularly.
  • the transitions between areas of the knitted fabric which are produced with different Faser notion- or yarn strengths, can be designed in different ways.
  • the velocities can be changed abruptly if the pattern is to have hard transitions between the areas of different fiber composite or yarn thickness.
  • the pattern has soft transitions between regions of different fiber composite or yarn thickness.
  • the speed of the spinning means may conveniently be controlled to a new value at least until the spinner produces enough fiber strand or yarn length to form a loop in the new thickness through a knitting element Has.
  • the speed of the spinning device can already be regulated to a new value after generating sufficient for a stitch yarn band or yarn length, if the pattern requires that the next stitch already again have a different yarn or fiber composite strength.
  • Each spinning device can preferably be supplied to a roving equal strength. However, it is also possible to supply some spinners with rovings of differing thickness and thereby produce fiber dressings or yarns of other thicknesses. In addition, both effects, that is, the variation of the speeds of the spinning devices and the use of different thickness roving, combine with each other.
  • the speed of the spinning devices can be changed by changing the relative speed of roller pairs of drafting systems, as long as the spinning devices have drafting devices.
  • a pair of rollers is operated at a constant speed and only the speed of the other pair of rollers varies.
  • the speed of spinning devices designed as friction spinning devices can be adjusted by changing the Change relative speed between the feed roller and the pair of output rollers.
  • the invention further relates to a knitted fabric, which is produced by a method according to the invention and has the features of claim 19.
  • the knitwear can be provided with a pattern that has hard and / or soft transitions between mesh areas formed with different fiber strength.
  • the patterns may have a variation of yarn or fiber composite strength from mesh to mesh.
  • the outer contours of the various mesh areas can take any shape. Geometric shapes such as stripes, stripes or circles are conceivable. Even labels or logos can be mapped with such mesh areas. Furthermore, pattern effects can be achieved, as previously possible only by the use of flame yarns.
  • Fig. 1 shows a schematic diagram of a machine 10 for the production of knitted fabric, which is formed by a circular knitting machine 11 and spinning devices 12. From the circular knitting machine 11, a needle cylinder 13, which is occupied with knitting elements 14 - here in the form of latch needles - and a knitting point 15, at which the knitting elements 14 can be expelled for stitch formation, are shown. Furthermore, a control device 16 for the entire machine 10 is indicated.
  • the knitting point 15 is associated with the spinning device 12, which consists of a drafting device 17 and a swirl member 18, wherein the swirl member 18 is connected to a transport tube 19.
  • the drafting device 17 has an input roller pair 20a, 20b, a Riemchenwalzencru 21a, 21b and a pair of output rollers 22a, 22b. About the Riemchenwalzencru 21a, 21b Doppelriemchen 23 are performed.
  • the lower roller 20b, 21b and 22b is driven in each case.
  • the drive means of the lower rollers 20b and 22b not shown here are connected to the control device 16 and can therefore be controlled by this.
  • the lower roller 21b is mechanically coupled to the lower roller 20b and therefore rotates at a peripheral speed that is in a fixed ratio to the peripheral speed of the lower roller 20b.
  • the drafting system 12 is a roving VG supplied in the direction of arrow 24, which is formed by a Flyerlunte with a certain twist. Due to the twist, the roving VG has sufficient strength to be wound up on bobbins and fed to the drafting system 12 over longer distances. The twisting, however, must be resolved again in the drafting system so that the roving VG can be drawn to the desired yarn fineness. The dissolution of the twist occurs in a pre-draft zone of the drafting system 12, which extends between the pair of input rollers 20a, 20b and the Riemchenwalzencru 21a, 21b.
  • the main draft zone extends between the pair of apron rollers 21a, 21b and the pair of output rollers 22a, 22b.
  • the thickness of the fiber structure FB produced by the drafting system 12 is determined by the difference between the circumferential speeds of the roller pairs 21a, 21b and 22a, 22b. These peripheral speeds can be controlled by the control device 16 such that each stitch forming element 14 can be fed with a fiber structure FB in the desired thickness.
  • This can be knitted by the circular knitting machine 11 a knit fabric, which with a is provided by regions of different fiber composite or Garndicken formed pattern, which may be provided within a row of stitches such different areas.
  • each stitch can be fed with a fiber structure FB or yarn of different thicknesses. As a result, it is even possible to produce patterns in which each stitch in a row of stitches has a different thickness at least in regions.
  • the emerging from the drafting 12 fiber structure FB is imparted by the twisting member 18, a false twist, whereby it can be transported stable transport through the transport tube 19 to the stitch forming elements 14.
  • the false twist dissolves again on the path of the fiber structure FB through the transport tube, so that the mesh formation elements 14 can entangle a fiber structure FB with fibers aligned substantially parallel. If the drafting device 12 is arranged very close to the stitch formation point 15, a swirl element 18 and a transport tube 19 can also be dispensed with.
  • a drafting system 12 ' is provided, the structure of the drafting system 12 from Fig. 1 is very similar and differs from it only in that all lower rollers 20b ', 21b' and 22b 'of the roller pairs 20a', 20b '; 21a ', 21b' and 22a ', 22b' have their own drive devices and are individually and independently controllable by the control device 16 of the machine 10 '.
  • the pre-distortion of the roving VG can now also be varied by changing the ratio of the peripheral speeds of the rollers 20b '. and 21b 'to each other is changed.
  • the producible thickness range of the fiber structure FB can be further increased.
  • Fig. 3 shows a plan view of the machine 10 from Fig. 1 , It can be seen that a plurality of knitting points 15, 15.1, 15.2, 15.3 distributed over the circumference are provided on the needle cylinder 13 of the circular knitting machine 11, of which only four are shown for reasons of clarity.
  • Each stitch formation point 15, 15.1, 15.2, 15.3 is assigned a drafting system 12, 12.1, 12.2, 12.3, these being identically constructed and each pair of input rollers 20a, 20b, 20.1a, 20.1b, 20.2a, 20.2b, 20.3a, 20.3b , Riemchenwalzencrue 21a, 21b, 21.1a, 21.1b, 21.2a, 21.2b, 21.3a, 21.3b and output roller pairs 22a, 22b, 22.1a, 22.1b, 22.2a, 22.2b, 22.3a, 22.3b have.
  • Each input lower roller 20b, 20.1b, 20.2b, 20.3b is in each case assigned a drive device 30, 30.1, 30.2, 30.3.
  • the output lower rollers 22b, 22.1b, 22.2b, 22.3b have drive means 31, 31.1, 31.2, 31.3.
  • All the drive devices 30, 30.1, 30.2, 30.3, 31, 31.1, 31.2, 31.3 which may preferably be designed as electric motors, are connected to the control device 16 and can be separated by the latter in each case independently of each of the other drive devices 30, 30.1, 30.2, 30.3, 31, 31.1, 31.2, 31.3 are controlled.
  • Fig. 4 shows a schematic diagram of some possible time courses of the drafting speed V of a drafting system 12, which as Relative speed between the Riemchenwalzencru 21a, 21b and the output roller pair 22a, 22b defined.
  • the speed V is regulated from a basic speed V0 for a certain time interval to a lower value V1 and then back again to the value V0.
  • a thicker fiber strand FB is produced by the drafting device and fed to the stitching elements than during the periods in which the value is V0.
  • the transitions between the values V0 and V1 are respectively ramped and relatively steep, whereby the pattern area knitted with the thicker fiber strand has sharp edges on both sides.
  • the curves b, c and d show a temporary increase of the speed V from the value V0 to higher values V2, V3, V4.
  • the time intervals in which the speed V in each case assumes the higher value, as well as the start time of the speed increase from curve to curve are different.
  • each of the curves results in pattern areas where stitches are formed with a finer yarn or fiber strand.
  • these areas are sharply defined on both sides.
  • the speed is increased rapidly from the value V0 to the value V4, but then lowered again relatively slowly.
  • the knit area which is knitted at a lower yarn count, receives a sharp edge on one side and a gradual transition to the mesh area in the basic fineness on the other side.
  • the illustrated courses of the delay speed V are merely examples. In principle, the speed can be within a permissible amplitude range in any temporal course vary. The permissible amplitude range depends on the roving used and the drafting system properties. The fiber composite produced must be thin enough to be processed by the knitting elements, but also thick enough to have the necessary stability.
  • FIGS. 5 to 7 Figure 3 shows three examples of cut-outs of knitwear according to the invention, each provided with patterns formed by knitting certain stitch areas with a different fiber-band or garn-thickness.
  • those areas characterized by densely spaced dots are mesh areas knitted with a thicker fiber strand or yarn.
  • the knitted fabric 50 off Fig. 5 has a base fabric 51 made with a uniform fiber-band or yarn thickness. Within this base knit 51 is provided a rhombic region 52 which was produced with a higher fiber band or yarn thickness. The area 52 has sharp outer contours.
  • the knitted fabric 60 off Fig. 6 on the other hand has a pattern formed by a total of four strips 61, 62, 63, 64, all of which were made with different thicknesses of yarn or fiber composite.
  • the knitted fabric shown comprises a basic knit 71 having two irregular, cloud-shaped mesh portions 72, 73, each made in different yarn or fiber composite strengths. As in the area 52 of the knitted fabric 50 Fig. 5 are for Knitting of regions 72, 73 requires variations in fiber fiber or yarn thickness in both the course and wale directions.
  • the drafting systems 12 or 12' could also be replaced by other spinning devices, such as friction spinning devices. Even with these yarns of different thickness can be produced by controlling the spinning speed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Knitting Machines (AREA)
EP14197425.3A 2014-12-11 2014-12-11 Maschine und Verfahren zur Herstellung von Maschenware Active EP3031967B1 (de)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP14197425.3A EP3031967B1 (de) 2014-12-11 2014-12-11 Maschine und Verfahren zur Herstellung von Maschenware
US15/532,223 US10443157B2 (en) 2014-12-11 2015-11-11 Machine and method for the production of knitted goods
BR112017010848-8A BR112017010848A2 (pt) 2014-12-11 2015-11-11 ?máquina para a produção de artigos de malha, método para a produção de artigos de malha, e, artigos de malha?
CA2970406A CA2970406A1 (en) 2014-12-11 2015-11-11 Machine and method for the production of knitted goods
PCT/EP2015/076334 WO2016091521A1 (de) 2014-12-11 2015-11-11 Maschine und verfahren zur herstellung von maschenware
CN201580067037.9A CN107002321B (zh) 2014-12-11 2015-11-11 用于制造针织物的机器和方法
MX2017007552A MX2017007552A (es) 2014-12-11 2015-11-11 Maquina y metodo para la produccion de articulos de punto.
JP2017527741A JP6794358B2 (ja) 2014-12-11 2015-11-11 編み物の製造のための機械および方法
KR1020177013658A KR20170093804A (ko) 2014-12-11 2015-11-11 니트 제품을 생산하기 위한 장치 및 방법
TW104140140A TWI712710B (zh) 2014-12-11 2015-12-01 用來製造針織物之機器和方法
ARP150104028A AR103142A1 (es) 2014-12-11 2015-12-10 Máquina y procedimiento para la manufactura de tejidos de punto

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14197425.3A EP3031967B1 (de) 2014-12-11 2014-12-11 Maschine und Verfahren zur Herstellung von Maschenware

Publications (2)

Publication Number Publication Date
EP3031967A1 EP3031967A1 (de) 2016-06-15
EP3031967B1 true EP3031967B1 (de) 2019-02-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14197425.3A Active EP3031967B1 (de) 2014-12-11 2014-12-11 Maschine und Verfahren zur Herstellung von Maschenware

Country Status (11)

Country Link
US (1) US10443157B2 (zh)
EP (1) EP3031967B1 (zh)
JP (1) JP6794358B2 (zh)
KR (1) KR20170093804A (zh)
CN (1) CN107002321B (zh)
AR (1) AR103142A1 (zh)
BR (1) BR112017010848A2 (zh)
CA (1) CA2970406A1 (zh)
MX (1) MX2017007552A (zh)
TW (1) TWI712710B (zh)
WO (1) WO2016091521A1 (zh)

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JP6862620B2 (ja) * 2018-12-07 2021-04-21 サン エース株式会社 婦人用肌着の編成方法及び婦人用肌着

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Publication number Publication date
BR112017010848A2 (pt) 2018-01-09
TWI712710B (zh) 2020-12-11
WO2016091521A1 (de) 2016-06-16
JP2018504528A (ja) 2018-02-15
TW201632666A (zh) 2016-09-16
MX2017007552A (es) 2017-12-15
US20170283992A1 (en) 2017-10-05
AR103142A1 (es) 2017-04-19
CN107002321B (zh) 2020-09-01
CA2970406A1 (en) 2016-06-16
EP3031967A1 (de) 2016-06-15
CN107002321A (zh) 2017-08-01
JP6794358B2 (ja) 2020-12-02
KR20170093804A (ko) 2017-08-16
US10443157B2 (en) 2019-10-15

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