EP3031967A1 - Machine and method for the production of knitted fabric - Google Patents
Machine and method for the production of knitted fabric Download PDFInfo
- Publication number
- EP3031967A1 EP3031967A1 EP14197425.3A EP14197425A EP3031967A1 EP 3031967 A1 EP3031967 A1 EP 3031967A1 EP 14197425 A EP14197425 A EP 14197425A EP 3031967 A1 EP3031967 A1 EP 3031967A1
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- European Patent Office
- Prior art keywords
- spinning
- knitting
- yarn
- thickness
- machine
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000004744 fabric Substances 0.000 title claims description 29
- 238000000034 method Methods 0.000 title claims description 14
- 238000009940 knitting Methods 0.000 claims abstract description 77
- 238000009987 spinning Methods 0.000 claims abstract description 70
- 239000000835 fiber Substances 0.000 claims abstract description 68
- 239000002131 composite material Substances 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000002123 temporal effect Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010040 friction spinning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical group Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 235000012308 Tagetes Nutrition 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
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- 238000004090 dissolution Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
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Images
Classifications
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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
- D04B9/14—Circular knitting machines with independently-movable needles with provision for incorporating loose fibres, e.g. in high-pile fabrics
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- 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
- 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
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- 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
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- 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 Haptic off.
- 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.
- 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 knitted fabric having a plurality of knitting elements and at least one knitting point associated with a spinning device which produces a fiber strand or a yarn from a roving and feeds it to the knitting elements, which is characterized in that the spinning device has drive devices which can be controlled in such a way that a fiber structure or a yarn of variable thickness can be produced with the spinning device from the roving and fed to the loop-forming elements
- 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.
- the roving can be a flyer sliver, a card sliver or a band conveyor.
- 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 devices of the spinning devices can be controlled such that the thickness of the fiber strand or yarn varies between the mesh forming elements supplied by the same spinning device. It is thus even possible to produce patterns 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 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 With a larger distance between the stitch forming points and the spinning devices, it is advantageous if transport means for the fiber strand or the yarn are provided between the spinning devices and the stitch forming points.
- transport devices which may include, for example, transport rollers and / or transport tubes and / or a swirl organ
- spinning devices can also attach, for example, to circular knitting machines with small diameter needle cylinders, in which the space at a small distance to Needle cylinder circumference would not be sufficient to provide for each knitting 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.
- a machine according to the invention can be designed as a circular knitting machine, a flat knitting machine, a knitting machine or a raschel machine.
- the needle cylinder is a circular knitting machine with a rotatably drivable needle cylinder and a plurality of knitting points, each knitting 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 of producing a knit fabric having a pattern produced by forming stitches having a different fiber band or yarn thickness on a machine for producing knitwear having a plurality of knitting elements and at least one knitting point comprising a spinner is assigned, which produces a fiber strand or a yarn from a roving and this the Maschenschianan supplies, wherein the spinning device has drive means, which is characterized in that the drive means of the spinning device or the spinning devices are controlled such that a continuous control of the speed of the spinning devices according to the desired thickness of the fiber strand or yarn for each stitch forming element depending on the knitted fabric to be produced pattern is made.
- 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-composite or yarn-strength 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 a different thickness. 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 changed by changing the relative speed between the feed roller and the pair of delivery rollers.
- the invention further relates to a knit fabric made by a method according to the invention and having a pattern produced by forming stitches having a different fiber-composite or yarn-denier, the pattern being obtained by variation of the filament or yarn thickness in the course-stitch direction and / or formed in wale direction.
- the knitwear can be provided with a pattern which has hard and / or soft transitions between mesh areas formed with different fiber composite or yarn thickness.
- 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 with such mesh areas depict. 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 system 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.
- 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.
- the roving VG has sufficient strength to be wound onto bobbins and fed over longer distances to the drafting system 12 can.
- the twisting 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 takes place in a Vorverzugszone of the drafting system 12, which extends between the pair of input rollers 20a, b and the pair of apron rollers 21a, b.
- the main drafting zone extends between the pair of apron rollers 21a, b and the pair of output rollers 22a, b.
- 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, b and 22a, b. 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.
- a knitwear knit fabric can be knitted by the circular knitting machine 11, which is provided with a pattern formed by areas of different fiber composite or Garndicken, wherein such different areas can be provided within a course series.
- 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 on the path of the fiber structure FB through the transport tube again, so that the mesh forming elements 14 a fiber strand FB can be entangled with substantially parallel aligned fibers. 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 circumferential speeds of the rollers 20b 'and 21b' to one another.
- 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 associated with a drafting system 12, 12.1, 12.2, 12.3, wherein these are constructed identically and each input roller pair 20a, b, 20.1a, b, 20.2a, b, 20.3a, b, Riemchenwalzencrue 21a , b, 21.1a, b, 21.2a, b, 21.3a, b and output roller pairs 22a, b, 22.1a, b, 22.2a, b, 22.3a, b.
- 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 sub-rollers 22b, 22.1b, 22.2b, 22.3b have Drive devices 31, 31.1,31.2,31.3 on. 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 defines itself as the relative speed between the pair of apron rollers 21a, b and the pair of output rollers 22a, b.
- 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 vary within an allowable amplitude range in any time course. 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, it has a pattern formed by a total of four strips 61-64, all of which are made with different thicknesses of yarn or fiber composite.
- the knitted fabric shown has a basic knit 71 with two irregular, cloud-shaped mesh areas 72 and 73, each made in different yarn or fiber composite strengths. As in the area 52 of the knitted fabric 50 Fig. 5 For example, in order to knit regions 72 and 73, variations in fiber-composite or yarn thickness in both the course-wise and wale-wise directions are required.
- the machines 10 and 10 '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.
- the circular knitting machine 11 could also be replaced by a flat knitting machine, a knitting machine or a Raschel machine.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Knitting Of Fabric (AREA)
- Knitting Machines (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Eine Maschine zur Herstellung von Maschenware mit einer Vielzahl von Maschenbildungselementen und mit mindestens einer Maschenbildungsstelle (15, 15.1, 15.2, 15.3), der eine Spinneinrichtung (12, 12.1, 12.2, 12.3) zugeordnet ist, die jeweils aus einem Vorgarn (VG) einen Faserverband (FB) oder ein Garn herstellt und dieses den Maschenbildungselementen (14) zuführt, wobei jede Spinneinrichtung (12, 12.1, 12.2, 12.3) über separate Antriebseinrichtungen (30, 31, 30.1, 31.1, 30.2, 31.2, 30.3, 31.3) verfügt, die derart ansteuerbar sind, dass mit jeder Spinneinrichtung (12, 12.1, 12.2, 12.3) aus dem Vorgarn (VG) ein Faserverband (FB) oder ein Garn variabler Dicke herstellbar und den Maschenbildungselementen (14) zuführbar ist.A machine for the production of knitwear having a plurality of knitting elements and at least one knitting point (15, 15.1, 15.2, 15.3) to which a spinning device (12, 12.1, 12.2, 12.3) is assigned, each consisting of a roving (VG) Fiber assembly (FB) or makes a yarn and this the loop-forming elements (14) supplies, each spinning device (12, 12.1, 12.2, 12.3) via separate drive means (30, 31, 30.1, 31.1, 30.2, 31.2, 30.3, 31.3) has , which are controllable such that with each spinning device (12, 12.1, 12.2, 12.3) from the roving (VG) a fiber structure (FB) or a yarn of variable thickness produced and the stitch forming elements (14) can be fed.
Description
Die Erfindung betrifft eine Maschine zur Herstellung einer Maschenware mit einer Vielzahl von Maschenbildungselementen und mit mindestens einer Maschenbildungsstelle, der eine Spinneinrichtung zugeordnet ist, die aus einem Vorgarn einen Faserverband oder ein Garn herstellt und dieses jeweils mehreren Maschenbildungselementen zuführt, ein Verfahren zur Herstellung einer Maschenware sowie eine nach dem Verfahren hergestellte Maschenware.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.
Es sind bereits seit einiger Zeit Strickmaschinen, insbesondere Rundstrickmaschinen, bekannt, bei denen den Stricknadeln ein Faserverband oder ein Garn zugeführt wird, das direkt von den Stricksystemen der Strickmaschine zugeordneten Spinneinrichtungen aus einem Vorgarn hergestellt wird. So beschreibt die
Aus der
Die
Ausgehend von diesem Stand der Technik liegt dieser Erfindung die Aufgabe zugrunde, das rationelle Herstellen von Maschenware mit beliebigen Mustern aus Maschen, die aus unterschiedlich dicken Faserverbänden oder Garnen gebildet sind, zu ermöglichen.Starting from this prior art, 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.
Die Aufgabe wird gelöst durch eine Maschine zur Herstellung von Maschenware mit einer Vielzahl von Maschenbildungselementen und mit mindestens einer Maschenbildungsstelle, der eine Spinneinrichtung zugeordnet ist, die aus einem Vorgarn einen Faserverband oder ein Garn herstellt und dieses den Maschenbildungselementen zuführt, die dadurch gekennzeichnet ist, dass die Spinneinrichtung über Antriebseinrichtungen verfügt, die derart ansteuerbar sind, dass mit der Spinneinrichtung aus dem Vorgarn ein Faserverband oder ein Garn variabler Dicke herstellbar und den Maschenbildungselementen zuführbar istThe object is achieved by a machine for producing knitted fabric having a plurality of knitting elements and at least one knitting point associated with a spinning device which produces a fiber strand or a yarn from a roving and feeds it to the knitting elements, which is characterized in that the spinning device has drive devices which can be controlled in such a way that a fiber structure or a yarn of variable thickness can be produced with the spinning device from the roving and fed to the loop-forming elements
Mit der erfindungsgemäßen Maschine kann auch bei Verwendung des gleichen Vorgarns jedem Maschenbildungselement ein Faserverband oder Garn unterschiedlicher Dicke zugeführt und von den Maschenbildungselementen zu Maschen geformt werden. Dadurch ist es möglich, Maschenwaren mit einem Muster zu erzeugen, bei dem die Dicke des Garns oder Faserverbands auch in Maschenreihenrichtung variiert. Als Vorgarn kann dabei eine Flyer-Lunte, ein Kardenband oder ein Streckenband eingesetzt werden.With the machine according to the invention, even with the use of the same roving, 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. The roving can be a flyer sliver, a card sliver or a band conveyor.
Dabei ist es selbstverständlich auch möglich, mindestens zwei Maschenbildungsstellen vorzusehen, denen Spinneinrichtungen zugeordnet sind, wobei die Dicke des von einer benachbarten Spinneinrichtung hergestellten Faserverbands oder Garns unterschiedlich sein kann.It is of course also possible to provide at least two knitting points, which are associated with spinning devices, wherein the thickness of the fiber dressing or yarn produced by an adjacent spinning device may be different.
Jede Spinneinrichtung kann vorzugsweise eine eigene Antriebseinrichtung aufweisen. Es ist jedoch auch möglich, mehrere Spinneinrichtungen über Getriebe zu koppeln, deren Übersetzungsverhältnis einstellbar ist, und eine gemeinsame Antriebseinrichtung für diese Spinneinrichtungen vorzusehen.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.
Dabei können die Antriebseinrichtungen der Spinneinrichtungen derart ansteuerbar sein, dass die Dicke des Faserverbands oder Garns zwischen den von derselben Spinneinrichtung versorgten Maschenbildungselementen variiert. Es können somit sogar Muster erzeugt werden, bei denen die Faserverbands- oder Garnstärke von Masche zu Masche innerhalb einer Maschenreihe variiert.In this case, the drive devices of the spinning devices can be controlled such that the thickness of the fiber strand or yarn varies between the mesh forming elements supplied by the same spinning device. It is thus even possible to produce patterns in which the fiber composite or yarn thickness varies from one stitch to the next within a course.
Im Extremfall können die Antriebseinrichtungen der Spinneinrichtungen sogar derart angesteuert werden, dass die Dicke des hergestellten und zugeführten Faserverbands oder Garns bei allen von derselben Spinneinrichtung versorgten Maschenbildungselementen unterschiedlich ist.In extreme cases, 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.
Eine Spinneinrichtung kann dabei eine einzige Maschenbildungsstelle oder aber auch mehrere Maschenbildungsstellen mit Faserverband versorgen.A spinning device can supply a single knitting point or even several knitting points with fiber structure.
Damit sind der Mustervielfalt, die durch eine erfindungsgemäße Maschine durch Variation der Faserverbands- oder Garnstärke erzielbar ist, kaum noch Grenzen gesetzt. Selbstverständlich ist es dabei auch möglich, weitere Maßnahmen wie das Zuführen von Spezialgarnen, eine Variation der Parameter am Abzug der Maschenbildungselemente, eine Veränderung der Kulierung zur Erzeugung von Maschen unterschiedlicher Größe sowie die Auswahl von Maschenbildungselementen zu ergreifen, um das gewünschte Muster und eine Maschenware in der angestrebten Qualität zu erhalten.Thus, the variety of patterns that can be achieved by a machine according to the invention by varying the Faserwerksands- or yarn thickness, hardly any limits. Of course, it is also possible to take further measures such as the feeding of special yarns, a variation of the parameters at the withdrawal of the stitch-forming elements, a change of the coagulation for the production of meshes of different sizes and the selection of knitting elements to the to obtain the desired pattern and knitwear in the desired quality.
Bei einer ersten bevorzugten Ausgestaltung der Maschine können die Spinneinrichtungen Streckwerke mit mehreren Walzenpaaren aufweisen, wobei zumindest zwei der Walzenpaare eine eigene Antriebseinrichtung aufweisen und diese Antriebseinrichtungen unabhängig voneinander ansteuerbar sind. Je größer der Unterschied der Geschwindigkeiten der beiden Walzenpaare ist, desto größer ist die Verzugsgeschwindigkeit und damit desto dünner der erzeugte Faserverband. Dieser kann entweder direkt den Maschenbildungselementen zugeführt oder zuvor durch ein Spinnorgan zu einem Garn versponnen werden.In a first preferred embodiment of the machine, the spinning devices can have drafting arrangements with a plurality of roller pairs, wherein at least two of the roller pairs have their own drive device and these drive devices can be controlled independently of one another. The greater the difference in the speeds of the two pairs of rollers, the greater the delay speed and thus the thinner the fiber structure produced. This can either be fed directly to the knitting elements or previously spun by a spinning member into a yarn.
Bei einer anderen Ausgestaltung der Maschine können die Spinneinrichtungen Friktionsspinneinrichtungen mit mindestens einer Speisewalze aufweisen, deren Geschwindigkeit in Relation zu einem Abzugswalzenpaar regelbar ist. Das Verhältnis der Umfangsgeschwindigkeit der Speisewalze zur Geschwindigkeit des Abzugs bestimmt hier die Dicke des erzeugten Garns.In another embodiment of the machine, 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.
Bei einem größeren Abstand zwischen den Maschenbildungsstellen und den Spinneinrichtungen ist es von Vorteil, wenn zwischen den Spinneinrichtungen und den Maschenbildungsstellen Transporteinrichtungen für den Faserverband oder das Garn vorgesehen sind. Mit solchen Transporteinrichtungen, die beispielsweise Transportwalzen und/oder Transportrohre und/oder ein Drallorgan umfassen können, lassen sich Spinneinrichtungen auch zum Beispiel an Rundstrickmaschinen mit Nadelzylindern geringen Durchmessers anbringen, bei denen der Platz in einem geringen Abstand zum Nadelzylinderumfang nicht ausreichen würde, für jede Strickstelle eine Spinneinrichtung vorzusehen.With a larger distance between the stitch forming points and the spinning devices, it is advantageous if transport means for the fiber strand or the yarn are provided between the spinning devices and the stitch forming points. With such transport devices, which may include, for example, transport rollers and / or transport tubes and / or a swirl organ, spinning devices can also attach, for example, to circular knitting machines with small diameter needle cylinders, in which the space at a small distance to Needle cylinder circumference would not be sufficient to provide for each knitting a spinning device.
Ist ein Drallorgan vorgesehen, so kann in einem Faserverband eine Verdrillung erzeugt werden, sodass ein transportstabiles Zwischengarn entsteht. Die Verdrillung löst sich auf dem Weg zwischen dem Drallorgan und der Maschenbildungsstelle wieder auf, sodass die Maschenware mit einem Faserverband mit parallel liegenden Fasern gebildet wird, wodurch sich der gewünschte weiche Griff der Maschenware ergibt.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.
Eine erfindungsgemäße Maschine kann als eine Rundstrickmaschine, eine Flachstrickmaschine, eine Wirkmaschine oder eine Raschelmaschine ausgebildet sein.A machine according to the invention can be designed as a circular knitting machine, a flat knitting machine, a knitting machine or a raschel machine.
Vorzugsweise ist sie eine Rundstrickmaschine mit einem rotierend antreibbaren Nadelzylinder und einer Vielzahl von Maschenbildungsstellen, wobei jeder Maschenbildungsstelle eine Spinneinrichtung zugeordnet ist. Bei einer solchen Maschine kann in an sich bekannter Weise die Rotationsgeschwindigkeit des Nadelzylinders regelbar sein. Weiter kann sie eine Einzelnadelauswahl aufweisen. Ist zudem eine Rippscheibe an der Maschine vorgesehen, so können ein- oder doppelflächige Gestricke hergestellt werden.Preferably, it is a circular knitting machine with a rotatably drivable needle cylinder and a plurality of knitting points, each knitting point is associated with a spinning device. In such a machine, 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.
Die Erfindung betrifft außerdem ein Verfahren zur Herstellung einer Maschenware mit einem Muster, das durch Bilden von Maschen mit einer unterschiedlichen Faserverbands- oder Garndicke erzeugt wird, auf einer Maschine zur Herstellung von Maschenware mit einer Vielzahl von Maschenbildungselementen und mit mindestens einer Maschenbildungsstelle, der eine Spinneinrichtung zugeordnet ist, die aus einem Vorgarn einen Faserverband oder ein Garn herstellt und dieses den Maschenbildungselementen zuführt, wobei die Spinneinrichtung über Antriebseinrichtungen verfügt, das dadurch gekennzeichnet ist, dass die Antriebseinrichtungen der Spinneinrichtung oder der Spinneinrichtungen derart angesteuert werden, dass eine laufende Regelung der Geschwindigkeit der Spinneinrichtungen entsprechend der gewünschten Dicke des Faserverbandes oder Garns für jedes Maschenbildungselement in Abhängigkeit des in der Maschenware zu erzeugenden Musters vorgenommen wird.The invention also relates to a method of producing a knit fabric having a pattern produced by forming stitches having a different fiber band or yarn thickness on a machine for producing knitwear having a plurality of knitting elements and at least one knitting point comprising a spinner is assigned, which produces a fiber strand or a yarn from a roving and this the Maschenbildelementen supplies, wherein the spinning device has drive means, which is characterized in that the drive means of the spinning device or the spinning devices are controlled such that a continuous control of the speed of the spinning devices according to the desired thickness of the fiber strand or yarn for each stitch forming element depending on the knitted fabric to be produced pattern is made.
Nach diesem Verfahren kann die Dicke des Faserverbands oder Garns maschengenau eingestellt werden. Damit lassen sich alle denkbaren, auf der Variation der Faserverbands- oder Garnstärke basierenden Muster in einer Maschenware herstellen.According to this method, 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-composite or yarn-strength in a knit fabric.
Dabei können die Geschwindigkeiten der Spinneinrichtungen in einem beliebigen zeitlichen Verlauf zur Erzielung eines bestimmten Musters verändert werden. Die Geschwindigkeitsänderungen können in regelmäßigen Intervallen wiederholt werden, um regelmäßige Muster wie Wellen, Streifen oder Ringelmuster zu erzeugen. Die Zeitintervalle, in denen die Geschwindigkeiten einen bestimmten Wert einnehmen, können immer gleich gewählt oder regelmäßig oder unregelmäßig variiert werden.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.
Auch die Übergänge zwischen Bereichen der Maschenware, die mit unterschiedlichen Faserverband- oder Garnstärken erzeugt werden, lassen sich auf unterschiedliche Weise gestalten. So können die Geschwindigkeiten sprungförmig verändert werden, wenn das Muster harte Übergänge zwischen den Bereichen unterschiedlicher Faserverbands- oder Garnstärke aufweisen soll.Also, the transitions between areas of the knitted fabric, which are produced with different Faserverband- or yarn strengths, can be designed in different ways. Thus, the velocities can be changed abruptly if the pattern is to have hard transitions between the areas of different fiber composite or yarn thickness.
Werden dagegen die Geschwindigkeiten rampenförmig oder asymptotisch auf einen neuen Wert geregelt, so weist das Muster weiche Übergänge zwischen Bereichen unterschiedlicher Faserverbands- oder Garnstärke auf.If, on the other hand, the velocities are ramped or asymptotically adjusted to a new value, the pattern has soft transitions between regions of different fiber composite or yarn thickness.
Um jede Masche mit einer definierten Faserverband- oder Garndicke herstellen zu können, kann die Geschwindigkeit der Spinneinrichtungen zweckmäßigerweise zumindest so lange auf einen neuen Wert geregelt werden, bis die Spinneinrichtung genügend Faserverband- oder Garnlänge zum Bilden einer Masche in der neuen Dicke durch ein Maschenbildungselement erzeugt hat.In order to be able to make each stitch with a defined fiber strand 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.
Dabei kann nach dem Erzeugen der für eine Masche ausreichenden Fadenverbands- oder Garnlänge die Geschwindigkeit der Spinneinrichtung bereits wieder auf einen neuen Wert geregelt werden, wenn das Muster erfordert, dass die nächste Masche bereits wieder eine andere Garn- oder Faserverbandsstärke aufweisen muss.In this case, 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.
Es ist jedoch auch möglich, die Geschwindigkeiten der Spinneinrichtungen in jeder Maschenreihe nach dem Zufallsprinzip zu verändern, wodurch Maschenwaren mit einzigartigen Mustern erzeugt werden können.However, it is also possible to randomly vary the speeds of the spinners in each course, whereby knits with unique patterns can be produced.
Jeder Spinneinrichtung kann dazu vorzugsweise ein Vorgarn gleicher Stärke zugeführt werden. Es ist jedoch auch möglich, einige Spinneinrichtungen mit Vorgarnen abweichender Stärke zu versorgen und dadurch Faserverbände oder Garne mit einer anderen Dicke zu erzeugen. Außerdem lassen sich auch beide Effekte, das heißt die Variation der Geschwindigkeiten der Spinneinrichtungen und der Einsatz von unterschiedlich dicken Vorgarnen, miteinander kombinieren.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 a different thickness. 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.
Je nach Ausgestaltung der Spinneinrichtungen kann deren Geschwindigkeit auf unterschiedliche Art verändert werden. So kann beispielsweise die Geschwindigkeit der Spinneinrichtungen durch Verändern der Relativgeschwindigkeit von Walzenpaaren von Streckwerken verändert werden, sofern die Spinneinrichtungen Streckwerke aufweisen. Vorzugsweise wird dazu ein Walzenpaar mit einer konstanten Geschwindigkeit betrieben und nur die Geschwindigkeit des anderen Walzenpaares variiert.Depending on the design of the spinning devices whose speed can be changed in different ways. Thus, for example, 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. Preferably, a pair of rollers is operated at a constant speed and only the speed of the other pair of rollers varies.
Die Geschwindigkeit von als Friktionsspinneinrichtungen ausgebildeten Spinneinrichtungen lässt sich dagegen durch Verändern der Relativgeschwindigkeit zwischen der Speisewalze und dem Ausgangswalzenpaar verändern.By contrast, the speed of spinning devices designed as friction spinning devices can be changed by changing the relative speed between the feed roller and the pair of delivery rollers.
Die Erfindung betrifft weiter eine Maschenware, die nach einem erfindungsgemäßen Verfahren hergestellt ist und die ein Muster aufweist, das durch Bilden von Maschen mit einer unterschiedlichen Faserverbands- oder Garnstärke erzeugt ist, wobei das Muster durch Variation der Faserverbands- oder Garndicke in Maschenreihenrichtung und/oder in Maschenstäbchenrichtung gebildet ist.The invention further relates to a knit fabric made by a method according to the invention and having a pattern produced by forming stitches having a different fiber-composite or yarn-denier, the pattern being obtained by variation of the filament or yarn thickness in the course-stitch direction and / or formed in wale direction.
Die Maschenware kann dabei mit einem Muster versehen sein, das harte und/oder weiche Übergänge zwischen mit unterschiedlicher Faserverbands- oder Garnstärke gebildeten Maschenbereichen aufweist.The knitwear can be provided with a pattern which has hard and / or soft transitions between mesh areas formed with different fiber composite or yarn thickness.
Die Muster können eine Variation der Garn- oder Faserverbandsstärke von Masche zu Masche aufweisen. Die äußeren Konturen der verschiedenen Maschenbereiche können jede beliebige Form annehmen. Es sind geometrische Formen wie Ringel, Streifen oder Kreise denkbar. Auch Beschriftungen oder Logos lassen sich mit solchen Maschenbereichen abbilden. Weiter können Mustereffekte erzielt werden, wie dies bisher nur durch die Verwendung von Flammgarnen möglich war.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 with such mesh areas depict. Furthermore, pattern effects can be achieved, as previously possible only by the use of flame yarns.
Im Folgenden werden eine bevorzugte Ausführungsform einer erfindungsgemäßen Maschine sowie von erfindungsgemäßen Maschenwaren mit Bezug auf die Zeichnung näher beschreiben.In the following, a preferred embodiment of a machine according to the invention and knitwear according to the invention will be described in more detail with reference to the drawing.
Es zeigen:
- Fig. 1
- eine schematische Ansicht einer Rundstrickmaschine mit ersten Streckwerken;
- Fig. 2
- eine schematische Ansicht einer Rundstrickmaschine mit zweiten Streckwerken;
- Fig. 3
- eine Draufsicht auf die Rundstrickmaschine aus
Fig. 1 ; - Fig. 4
- ein Diagramm mit verschiedenen Geschwindigkeitsprofilen der Streckwerksantriebe der Rundstrickmaschine aus
Fig. 1 ; - Fig. 5
- eine schematische Darstellung einer ersten Maschenware mit Maschenbereichen, die mit unterschiedlichen Faserverbanddicken hergestellt sind;
- Fig. 6
- eine schematische Darstellung einer zweiten Maschenware mit Maschenbereichen, die mit unterschiedlichen Faserverbanddicken hergestellt sind;
- Fig. 7
- eine schematische Darstellung einer dritten Maschenware mit Maschenbereichen, die mit unterschiedlichen Faserverbanddicken hergestellt sind.
- Fig. 1
- a schematic view of a circular knitting machine with first drafting units;
- Fig. 2
- a schematic view of a circular knitting machine with second drafting units;
- Fig. 3
- a plan view of the circular knitting machine
Fig. 1 ; - Fig. 4
- a diagram with different speed profiles of the drafting drives of the circular knitting machine
Fig. 1 ; - Fig. 5
- a schematic representation of a first knit fabric with mesh areas, which are made with different Faserverbanddicken;
- Fig. 6
- a schematic representation of a second knitted fabric with mesh areas, which are made with different Faserverbanddicken;
- Fig. 7
- a schematic representation of a third knit fabric with mesh areas, which are made with different Faserverbanddicken.
Der Maschenbildungsstelle 15 ist die Spinneinrichtung 12 zugeordnet, die aus einem Streckwerk 17 und einem Drallorgan 18 besteht, wobei das Drallorgan 18 mit einem Transportrohr 19 verbunden ist. Das Streckwerk 17 weist ein Eingangswalzenpaar 20a, 20b, ein Riemchenwalzenpaar 21a, 21b und ein Ausgangswalzenpaar 22a, 22b auf. Über das Riemchenwalzenpaar 21a, 21b sind Doppelriemchen 23 geführt. Bei jedem der Walzenpaare 20a,b bis 22a,b ist jeweils die untere Walze 20b, 21b und 22b angetrieben. Die hier nicht näher dargestellten Antriebseinrichtungen der Unterwalzen 20b und 22b sind mit der Steuereinrichtung 16 verbunden und können daher von dieser angesteuert werden. Die Unterwalze 21b ist mechanisch mit der Unterwalze 20b gekoppelt und rotiert daher mit einer Umfangsgeschwindigkeit, die in einem festen Verhältnis zur Umfangsgeschwindigkeit der Unterwalze 20b steht.The
Dem Streckwerk 12 wird in Pfeilrichtung 24 ein Vorgarn VG zugeführt, das von einer Flyerlunte mit einer gewissen Verdrillung gebildet wird. Durch die Verdrillung weist das Vorgarn VG eine ausreichende Festigkeit auf, um auf Spulen aufgewickelt und auch über längere Strecken dem Streckwerk 12 zugeführt werden zu können. Die Verdrillung muss jedoch im Streckwerk wieder aufgelöst werden, damit das Vorgarn VG auf die gewünschte Garnfeinheit verzogen werden kann. Die Auflösung der Verdrillung geschieht in einer Vorverzugszone des Streckwerks 12, die sich zwischen dem Eingangswalzenpaar 20a,b und dem Riemchenwalzenpaar 21a,b erstreckt. Die Hauptverzugszone erstreckt sich dagegen zwischen dem Riemchenwalzenpaar 21a,b und dem Ausgangswalzenpaar 22a,b. Die Dicke des vom Streckwerk 12 erzeugten Faserverbandes FB wird von der Differenz der Umfangsgeschwindigkeiten der Walzenpaare 21a,b und 22a,b bestimmt. Diese Umfangsgeschwindigkeiten können von der Steuereinrichtung 16 so geregelt werden, dass jedem Maschenbildungselement 14 ein Faserverband FB in der gewünschten Dicke zugeführt werden kann. Damit kann durch die Rundstrickmaschine 11 eine Maschenware gestrickt werden, die mit einem durch Bereiche unterschiedlicher Faserverbands- oder Garndicken gebildeten Muster versehen ist, wobei auch innerhalb einer Maschenreihe solche unterschiedlichen Bereiche vorgesehen sein können. Bei entsprechend kurzen Längen der Verzugszonen des Streckwerks 12 und einer relativ groben Feinheit der Maschine 11 kann dabei sogar jeder Masche ein Faserverband FB oder Garn unterschiedlicher Dicke zugeführt werden. Dadurch können sogar Muster erzeugt werden, bei denen in einer Maschenreihe zumindest bereichsweise jede Masche eine andere Dicke aufweist.The
Dem aus dem Streckwerk 12 austretenden Faserverband FB wird von dem Drallorgan 18 ein Falschdrall verliehen, wodurch er transportstabil durch das Transportrohr 19 den Maschenbildungselementen 14 zugeführt werden kann. Der Falschdrall löst sich auf dem Weg des Faserverbandes FB durch das Transportrohr wieder auf, sodass von den Maschenbildungselementen 14 ein Faserverband FB mit im wesentlich parallel ausgerichteten Fasern verstrickt werden kann. Ist das Streckwerk 12 sehr dicht an der Maschenbildungsstelle 15 angeordnet, kann auf ein Drallorgan 18 und ein Transportrohr 19 auch verzichtet werden.The emerging from the drafting 12 fiber structure FB is imparted by the twisting
Die aus
Beim Kurvenverlauf a wird die Geschwindigkeit V von einer Grundgeschwindigkeit V0 für ein bestimmtes Zeitintervall auf einen niedrigeren Wert V1 und dann wieder zurück auf den Wert V0 geregelt. Während des Zeitintervalls, in dem die Geschwindigkeit V den Wert V1 annimmt, wird von dem Streckwerk ein dickerer Faserverband FB erzeugt und den Maschenbildungselementen zugeführt als in den Zeiträumen, in denen der Wert V0 beträgt. Die Übergänge zwischen den Werten V0 und V1 sind jeweils rampenförmig und relativ steil, wodurch der mit dem dickeren Faserverband gestrickte Musterbereich beidseitig scharfe Ränder aufweist.In the course of the curve a, 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. During the time interval in which the speed V assumes the value V1, 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.
Die Kurvenverläufe b, c und d zeigen eine zeitweise Erhöhung der Geschwindigkeit V vom Wert V0 auf höhere Werte V2, V3, V4. Die Zeitintervalle, in denen die Geschwindigkeit V jeweils den höheren Wert einnimmt, sind ebenso wie der Startzeitpunkt der Geschwindigkeitserhöhung von Kurve zu Kurve unterschiedlich. Jede der Kurven führt jedoch zu Musterbereichen, in denen Maschen mit einem feineren Garn oder Faserverband gebildet werden. Bei den Kurven b und c sind diese Bereiche beidseits scharf begrenzt. Bei der Kurve d wird dagegen die Geschwindigkeit rasch vom Wert V0 auf den Wert V4 erhöht, aber anschließend relativ langsam wieder abgesenkt. Dadurch erhält der Maschenbereich, der mit einer geringeren Garnfeinheit gestrickt wird, einseitig einen scharfen Rand und auf der anderen Seite einen allmählichen Übergang zum Maschenbereich in der Grundfeinheit.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. However, each of the curves results in pattern areas where stitches are formed with a finer yarn or fiber strand. In curves b and c, these areas are sharply defined on both sides. In the case of curve d, on the other hand, the speed is increased rapidly from the value V0 to the value V4, but then lowered again relatively slowly. As a result, 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.
Die dargestellten Verläufe der Verzugsgeschwindigkeit V sind lediglich beispielhaft. Im Prinzip kann die Geschwindigkeit innerhalb eines zulässigen Amplitudenbereichs in einem beliebigen zeitlichen Verlauf variieren. Der zulässige Amplitudenbereich hängt vom verwendeten Vorgarn sowie den Streckwerkseigenschaften ab. Der hergestellte Faserverband muss dünn genug sein, um noch von den Maschenbildungselementen verarbeitet werden zu können, andererseits aber auch dick genug, um die notwendige Stabilität aufzuweisen.The illustrated courses of the delay speed V are merely examples. In principle, the speed can vary within an allowable amplitude range in any time course. 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.
Die
Die Maschenware 50 aus
Die Maschenware 60 aus
Die in
Es versteht sich, dass bei den Maschinen 10 und 10' die Streckwerke 12 oder 12' auch durch andere Spinneinrichtungen wie Friktionsspinneinrichtungen ersetzt werden könnten. Auch mit diesen lassen sich durch Regelung der Spinngeschwindigkeit Garne unterschiedlicher Dicke herstellen. Die Rundstrickmaschine 11 könnte auch durch eine Flachstrickmaschine, eine Wirkmaschine oder eine Raschelmaschine ersetzt werden.It is understood that in the
Claims (23)
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EP14197425.3A EP3031967B1 (en) | 2014-12-11 | 2014-12-11 | Machine and method for the production of knitted fabric |
BR112017010848-8A BR112017010848A2 (en) | 2014-12-11 | 2015-11-11 | Machine for producing knitted articles, method for producing knitted articles and knitted articles |
US15/532,223 US10443157B2 (en) | 2014-12-11 | 2015-11-11 | Machine and method for the production of knitted goods |
JP2017527741A JP6794358B2 (en) | 2014-12-11 | 2015-11-11 | Machines and methods for the manufacture of knitting |
MX2017007552A MX2017007552A (en) | 2014-12-11 | 2015-11-11 | Machine and method for producing knitted fabric. |
CN201580067037.9A CN107002321B (en) | 2014-12-11 | 2015-11-11 | Machine and method for producing knitted fabric |
PCT/EP2015/076334 WO2016091521A1 (en) | 2014-12-11 | 2015-11-11 | Machine and method for producing knitted fabric |
KR1020177013658A KR20170093804A (en) | 2014-12-11 | 2015-11-11 | Machine and method for producing knitted fabric |
CA2970406A CA2970406A1 (en) | 2014-12-11 | 2015-11-11 | Machine and method for the production of knitted goods |
TW104140140A TWI712710B (en) | 2014-12-11 | 2015-12-01 | Machine and method for the production of knitted goods |
ARP150104028A AR103142A1 (en) | 2014-12-11 | 2015-12-10 | MACHINE AND PROCEDURE FOR THE MANUFACTURE OF KNITTED FABRICS |
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2014
- 2014-12-11 EP EP14197425.3A patent/EP3031967B1/en active Active
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2015
- 2015-11-11 KR KR1020177013658A patent/KR20170093804A/en not_active Application Discontinuation
- 2015-11-11 CN CN201580067037.9A patent/CN107002321B/en not_active Expired - Fee Related
- 2015-11-11 BR BR112017010848-8A patent/BR112017010848A2/en active Search and Examination
- 2015-11-11 MX MX2017007552A patent/MX2017007552A/en active IP Right Grant
- 2015-11-11 WO PCT/EP2015/076334 patent/WO2016091521A1/en active Application Filing
- 2015-11-11 US US15/532,223 patent/US10443157B2/en not_active Expired - Fee Related
- 2015-11-11 JP JP2017527741A patent/JP6794358B2/en active Active
- 2015-11-11 CA CA2970406A patent/CA2970406A1/en not_active Abandoned
- 2015-12-01 TW TW104140140A patent/TWI712710B/en not_active IP Right Cessation
- 2015-12-10 AR ARP150104028A patent/AR103142A1/en active IP Right Grant
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WO2004079068A2 (en) | 2003-03-06 | 2004-09-16 | Koenig Reinhard | Knitted fabric, method and device for producing said fabric |
DE102005052693A1 (en) | 2005-10-28 | 2007-05-03 | Wilhelm Stahlecker Gmbh | Drive for integrated drafting and knitting of sliver comprises reluctance motors fed from a frequency converter for driving the drafting rollers |
DE102006037714A1 (en) * | 2006-08-07 | 2008-02-14 | Wilhelm Stahlecker Gmbh | Device for producing a knitted fabric |
WO2009026734A1 (en) | 2007-08-31 | 2009-03-05 | Rotorcraft Ag | Drafting unit for knitting machine |
WO2009059438A1 (en) * | 2007-11-06 | 2009-05-14 | Rotorcraft Ag | Knitting machine and method for producing knitted fabrics from rovings |
WO2013041220A1 (en) * | 2011-09-21 | 2013-03-28 | Koenig Reinhard | Folding drawing system for a spin-knit machine |
Also Published As
Publication number | Publication date |
---|---|
AR103142A1 (en) | 2017-04-19 |
US20170283992A1 (en) | 2017-10-05 |
TWI712710B (en) | 2020-12-11 |
US10443157B2 (en) | 2019-10-15 |
JP6794358B2 (en) | 2020-12-02 |
KR20170093804A (en) | 2017-08-16 |
WO2016091521A1 (en) | 2016-06-16 |
BR112017010848A2 (en) | 2018-01-09 |
CN107002321B (en) | 2020-09-01 |
CA2970406A1 (en) | 2016-06-16 |
JP2018504528A (en) | 2018-02-15 |
EP3031967B1 (en) | 2019-02-27 |
TW201632666A (en) | 2016-09-16 |
CN107002321A (en) | 2017-08-01 |
MX2017007552A (en) | 2017-12-15 |
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