WO2018138605A1 - Maschenware sowie verfahren und vorrichtung zum herstellen dieser maschenware - Google Patents
Maschenware sowie verfahren und vorrichtung zum herstellen dieser maschenware Download PDFInfo
- Publication number
- WO2018138605A1 WO2018138605A1 PCT/IB2018/050298 IB2018050298W WO2018138605A1 WO 2018138605 A1 WO2018138605 A1 WO 2018138605A1 IB 2018050298 W IB2018050298 W IB 2018050298W WO 2018138605 A1 WO2018138605 A1 WO 2018138605A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roving
- pair
- knitting machine
- yarn
- warped
- Prior art date
Links
Classifications
-
- 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
- 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
- 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
- D04B1/22—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 specially adapted for knitting goods of particular configuration
- D04B1/24—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 specially adapted for knitting goods of particular configuration wearing apparel
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B9/00—Circular knitting machines with independently-movable needles
- D04B9/02—Circular knitting machines with independently-movable needles with one set of needles
- D04B9/025—Circular knitting machines with independently-movable needles with one set of needles with stitch-length regulation
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/03—Shape features
- D10B2403/033—Three dimensional fabric, e.g. forming or comprising cavities in or protrusions from the basic planar configuration, or deviations from the cylindrical shape as generally imposed by the fabric forming process
Definitions
- the present invention relates to a method for producing a knitted fabric in which a roving in the form of a roving of non-consolidated fiber bundles of a Vorgarnverzugs- and -fest Trentsech pairing a drafting system with at least two in Garntransportides successive stretching rollers and a downstream of the drafting in the Garntransportides Spinndüsen issued has, supplied and is warped by the at least two drafting rollers pairs, wherein at least one pair of input rollers and a pair of output rollers of the drafting are driven in accordance with the pattern of knitting machine to be formed knit so controlled that the yarn thickness of the warped rug over its length by changing the Relative speed between the pair of input rollers and the pair of output rollers is varied, the emerging from the drafting, warped roving fed to the spinneret device and through this by means of Dr uckluftbeetzschung is solidified, and then the warped, solidified roving is fed directly or via at least one transport or clamping means of the knitting machine
- the present invention further relates to a device for producing a knitted fabric, which at least one knitting machine, at least one of the knitting machine upstream in Garntransport exercises Vorgarnverzugs- and -festing, which at least one drafting with at least two in the Garntransportides successively arranged draw rolls and at least one of the drafting in the yarn transport direction downstream spinneret device, wherein at least one driven roller of a pair of input rollers and at least one driven roller of a pair of output rollers of the drafting system are coupled to at least one drive coupled to a pattern controller for the knitting machine.
- the present invention relates to a knit fabric formed from a warped, consolidated roving having yarn thickness varying along its length, the yarn thickness of the warped, consolidated roving depending on is formed by the pattern of knitwear.
- yarns of varying yarn thickness are known from the prior art, but usually the yarn thickness of such so-called nap yarns is changed merely with regard to the appearance of the knitwear made from the yarn.
- the nap yarn may have thickenings, so-called nubs, at regular or irregular intervals.
- yarns having nubs varying in length and spacing are used.
- DE 1 910 034 A discloses a method and apparatus for producing yarns of randomly varying yarn thickness, whereby random changes are made in the yarn thickness of the ground yarn and at the same time the thickness and length of the naps produced are varied in a random manner.
- the device described in the document DE 1 910 034 A has a controllable, variable speed drive device.
- the drive device is operatively connected to a rear set of stretchers to drive it completely independently of a front set of stretchers associated with that set, spaced from the rear stretch devices.
- the feeding of a strand of textile material to the draw zone extending between the sets of stretchers can thus be controlled completely independently of the speed with which the warped yarn is delivered from the front set of stretchers.
- the method described in the document DE 1 910 034 A and the device described therein are used exclusively for producing yarn with varying yarn thickness, which is subsequently processed further for the production of a substance, such as a fabric.
- the publication WO 2016/091521 A1 uses a combination of spinning device and knitting machine, it being possible with the spinning device to produce a fiber structure or a yarn of variable thickness from a roving and to feed it to the knitting machine of the knitting machine.
- the spinning device For this purpose, at least two pairs of rollers of a drafting of the spinning device own, independently controllable drive means by which the relative speed between an input and a pair of output rollers of the drafting can be changed or there are provided on the machine Fritationsspinn wornen with at least one feed roller whose speed in relation is adjustable to a pair of take-off rolls.
- knitwear can be made with a pattern produced by forming stitches having a different fiber-composite or yarn-denier, the pattern being formed by varying the fiber-composite or yarn thickness in the course-wise direction and / or in the wale-wise direction ,
- the object is achieved on the one hand by a method of the type mentioned, in which by controlling the rotational speed of at least one roller of the output roller pair of the drafting system, the yarn delivery speed of the delayed gene, solidified roving is set to the knitting machine depending on the knitting machine to be knitted mesh size.
- the amount of material used to make a knit fabric can be optimized.
- the yarn thickness of the warped, solidified roving emerging from the roving warp-and-tie unit is changed according to a pattern knitted by the knitting machine by the roving warping and fastening unit coupled to the knitting machine.
- a drafting of Vorgarnverzugs- and -Verfest Trentsech is supplied a sliver in the form of a non-solidified fiber bundle, which warped by at least two in Garntransportides successive stretch rollers pairs of the drafting and subsequently arranged by the drafting in Garntransportides below Spinneret device is solidified.
- Spinneret device is solidified.
- the solidification section can be terminated, for example, by a nip roller following the yarn transport direction of the spinneret, whereupon the thickness-varied, warped, consolidated roving can be easily transported over longer distances directly from the roving warping and consolidation unit to the knitting machine subsequently arranged in the yarn transport direction.
- the yarn thickness of the warped, solidified Vorgarnes produced in the Vorgarnverzugs- and -festing unit at least one input roller pair, ie the first in the yarn transport direction stretching rollers pair of drafting, and a pair of output rollers, so in Garntransport exercises last stretch rollers pair of the drafting, according to the pattern of Driven on the knitting machine trainees knit fabric driven.
- the control takes place in such a way that the yarn thickness of the warped roving produced by the drafting system is varied over its length by varying the relative speed between the pair of input rollers and the pair of output rollers.
- the yarn thickness of the warped roving can be varied according to pattern over its length by varying the relative speed between the pair of input rollers and the pair of outgoing rollers.
- the rotational speed of the driven pair of input rollers is changed so that the drafting system is supplied with more or less fuses as a function of the set rotational speed.
- the rotational speed of the output roller pair for example, can be kept constant.
- the rotational speed of the pair of delivery rollers may also be varied relative to a constant speed of the input roller pair depending on the pattern to be knitted.
- both the input and the output roller pair can be driven in a controlled manner such that the yarn thickness of the warped roving emerging from the drafting system can be adapted to the pattern to be knitted via the relative speed between the input roller and the output roller pair.
- the rotational speed of the driven input roller pair can be changed according to the pattern.
- the yarn thickness of the warped, consolidated, finished roving to be produced increases. Conversely, the yarn thickness of the warped, consolidated, consolidated roving decreases with a reduction in the speed of rotation of at least one driven roller of the pair of input rollers relative to the speed of rotation of at least one driven roller of the pair of outfeed rollers.
- each case only one roller of the drafting rollers couples is driven, wherein the respective second roller moves by pressing against the driven roller in the opposite direction to this.
- both rollers of a pair of draw rollers can be driven.
- the draft supplied to the drafting device can also be warped by more than two, for example three or four, drafting roller pairs.
- spinnerets of the spinneret means engage the warped roving Twist and promote automatically Garntransportides
- the spinneret advantageously has at least two spinnerets, which operate pneumatically and apply the exiting from the drafting, warped roving with compressed air with opposite directions of rotation.
- At least one clamping roller of the spinneret device is driven in Garntransport therapies subsequently arranged pinch roller pair, wherein here, depending on the variant of the method according to the invention, the rotational speed of the at least one pinch roller, for example, depending on the knitting pattern can be changed.
- the yarn delivery speed of the warped, consolidated roving yarn to the knitting machine is adjusted depending on the knitting size to be knitted by the knitting machine.
- the change in the yarn delivery speed is thus made possible in the process according to the invention by adjusting the rotational speed of Garnzugansportcardi last drafting roller pair of the drafting, for an increasing Garnannon aus the rotational speed of the output roller pair is set larger and to achieve a decreasing Garnannon aus whose rotational speed is set lower.
- both the yarn count or yarn thickness, that is to say the mass of the yarn per yarn section, and the yarn delivery quantity are adapted to the mesh size of the knitted fabric to be knitted in each case.
- the knitting size to be knitted is made possible by varying the depth of the knitting machine.
- the knitting differently sized stitches transparent and less transparent areas can be produced in a knit fabric.
- knitwear can be produced which is approximately constant Have basis weight and are characterized by a nearly homogeneous transparency or opacity.
- leggings and tights known from the prior art are all formed from a fabric of uniform yarn thickness. This leads to the leggings or pantyhose, for example, being transparent or translucent due to a greater elongation in the buttocks area. In order to avoid a shine through of underwear and / or skin, the leggings or tights must be bought correspondingly large, which in turn has the disadvantage that it slips easier and, for example, in the calf area is not tight enough.
- the diameter of the knitted fabric is largely defined by the design conditions, such as cylinder diameter and number of needles. This can only be changed within certain limits by varying the mesh size. Manufacturers use this effect for leggings. As the mesh size increases, so does the knit diameter. Thus, a leggings leg can be given a certain shape. However, this shaping is possible only with a predetermined yarn thickness. As a result, in the prior art, the opacity is higher for small meshes and thus smaller knit diameters than for large mesh sizes. see and thus large knit diameter.
- the method according to the invention adapts the yarn size and the mesh size to the knitting pattern to be formed.
- the drafting system is controlled so that the larger the knitting machine to be knitted mesh size, the lower the relative speed between the pair of input rollers and the pair of output rollers and set the greater the rotational speed of at least one driven roller of the pair of output rollers is, and the smaller the knitting machine to be knitted mesh size, the greater the relative speed between the pair of input rollers and the pair of output rollers and the lower the rotational speed of the at least one driven roller of the pair of output rollers is set.
- the stitches in areas where the knitted fabric is exposed while wearing a greater elongation, such as in the buttocks, knitted larger and on the other hand the Garndicke be increased depending on the size of the mesh .
- the yarn thickness is advantageously adjusted depending on the mesh size to be produced, with increasing mesh size, the yarn thickness of the knitting point supplied, warped, consolidated roving increases and decreases with decreasing mesh size whose yarn thickness.
- the mesh size and the yarn thickness of the knitwear to be formed are determined pattern-controlled.
- the relative speed between the pair of input rollers and the pair of output rollers is set inversely proportional to the mesh size to be knitted by the knitting machine and the rotational speed of the at least one driven roller of the pair of output rollers is set directly proportional to the mesh size.
- the warped, consolidated roving of the knitting machine can not be supplied with a constant yarn tension, but can for example be adapted to the knitting pattern.
- auxiliary thread feeding speed to the drafting system depends on the mesh size of the knitted fabric to be formed on the knitting machine and / or depending on Elongation properties of the auxiliary thread is controlled.
- the auxiliary thread feeding speed to the drafting system may also be controlled depending on the pattern of the knitted fabric to be formed on the knitting machine.
- the auxiliary thread by the last in the yarn transport direction stretching rollers few of the drafting system, so the pair of output rollers, is deducted. Since the individual rollers of the drafting optionally move with different rotational speed of the last drafting rollers pair of the drafting device supplied auxiliary thread is exposed only a single rotational speed, so adapted to the supply of the auxiliary thread to this rotational speed and thus to the pattern of knitting machine to be formed on the knitting machine can be.
- the auxiliary thread may also be fed to the roving at another location, for example before being fed to the drafting system.
- a core-sheath yarn is formed in which the warped, consolidated roving wraps the auxiliary yarn in bundles.
- an inelastic thread a so-called core thread, or an elastic thread, a so-called elastane thread
- the auxiliary thread By using the auxiliary thread, the knitting machine supplied, warped, solidified, the auxiliary thread containing roving with increased stability can be provided.
- the roving can also have more than one auxiliary thread, for example two or three Auxiliary threads, are supplied. It has been shown to be advantageous if the respective auxiliary threads are fed by separate auxiliary yarn feeding the drafting system. However, they can also be transported to the roving by means of a single auxiliary thread feeding device.
- a knit fabric can be produced in which an unsightly through-effect as a result of great elongation, as explained above, for example, often Leggings or tights in the buttocks area is the case to be avoided.
- a knitted fabric can be produced, which, in particular when worn, has approximately the same transparency or opacity and a beautiful uniform overall impression, without undesirable through-shine effects.
- the at least one auxiliary thread such as at least one elastane thread
- the elastane is then not on the skin, as in a plating, but is covered by the fiber sheath.
- a plurality of warped, consolidated roving yarns are formed on separate roving warping and fastening units and supplied to the knitting machine by these separate knitting systems, the roving warping and fastening units being controlled and operated independently of one another.
- Such a configuration has proved to be advantageous in particular when used on small circular knitting machines.
- two or more warped, solidified rovings may be formed by a common roving warping and consolidation unit and subsequently fed to one or more separate knitting system (s) of the knitting machine. It is also possible that several Vorgarnverzugs- and -verfest Trentsakuen are combined to form a module and are controlled electronically together. Here, either all Vorgarnverzugs- and -verfest Trentsritten or only individual Vorgarnverzugs- and-consolidation units can be combined to form a module. Modular operation of the roving warping and consolidation units has proved to be advantageous, especially with regard to the use in small circular knitting machines.
- one knitting system of the knitting machine is supplied with warped, consolidated roving by at least two of the roving warping and consolidation units.
- two, three, four or even more than four strands of warped, consolidated roving can be produced separately and brought together at the respective knitting system, ie the respective knitting point.
- Hierdruch it is possible to integrate different rovings of different materials and / or with different yarn properties in the knitted fabric to be formed.
- the object of the present invention is further achieved by a device of the aforementioned type in which the knitting machine has a Kuliereniefenverstellvor- direction, which is coupled to the pattern control for the knitting machine and the at least one drive for at least one driven roller of a pair of output roller.
- the drafting device Due to the pattern-controlled drive at least one driven roller of the pair of input rollers, so the first pair in the yarn transport direction stretching rollers, the drafting relative to the drive at least one driven roller of the pair of output rollers, so in Garntransportides last pair of drafting rollers, the drafting device can be a warped, solidified by the inventive device Roving be formed with different yarn thickness, the material use is optimally adapted to the knitting machine to be formed on the knitting machine.
- the knitting machine is coupled to a Vorgarnverzugs- and -festing unit, which at least one drafting system with at least two in Garntransportides successively arranged pinch roller pairs, a downstream in Garntransportides Spinndüsen observed and advantageously, but not necessarily the Consolidation of the spinneret device limiting clamping roller pair has.
- a sliver in the form of an unbonded fiber bundle is fed to the first pair of nip rollers in the yarn transporting direction, which is stretched by the individual draw roll pairs and solidified by means of the spinneret device. Additional stability can be obtained by the warped, consolidated roving by the subsequently arranged pinch roller pair.
- At least one roller of the respective pair of stretching rollers is driven by a drive, whereby both rollers can also be driven.
- a yarn thickness change is achieved in particular by varying the rotational speed of the input roller pair relative to the pair of output rollers of the drafting system.
- the spinneret device arranged downstream of the drafting system in the yarn transport direction preferably has two self-conveying spinnerets, whereby the transport of the warped roving takes place by means of an air flow of the spinneret nozzles directed in the working direction.
- the two spinnerets are arranged one after the other in the yarn conveying direction, whereby they operate pneumatically and have a three-phase flow which is opposite to one another.
- the pair of nip rollers advantageously arranged downstream of the spinneret device in the yarn transport direction can also be coupled or coupled to a drive, by means of which at least one nip roller of the nip roller pair is driven.
- a drive by means of which at least one nip roller of the nip roller pair is driven.
- the warped, consolidated roving is given additional stability and strength, whereby the warped and pinched after spinneret consolidation roving can be easily transported over a relatively long distance to the knitting machine without the only temporarily solidified roving dissolves during this transport.
- this type of coupling of the spinning device and the knitting machine makes it possible to produce particularly soft knitwear in a very efficient, space-saving and comparatively inexpensive manner.
- the knitting machine has a Kuliereniefenverstellvorraumraum, which is coupled to the pattern control for the knitting machine.
- Kulierhornverstellvoroplasty can advantageously be varied to be knitted mesh size.
- the coupling of the Kuliereniefenverstellvorides with the pattern control of the knitting machine makes it possible to change the mesh size depending on a pattern to be knitted.
- a stitch-forming needle is expelled further or less by means of the chording depth adjustment device.
- the yarn thickness meshes in combination with an adjustment of the yarn thickness meshes, such as leggings or tights, can be produced, which have a nearly the same transparency or opacity even when worn.
- an unsightly show through of skin and / or underwear as a result of increased elongation of the knitwear, for example, in the buttocks of a wearer or a wearer can be avoided.
- the stitches for this purpose are made larger in areas where the knitted fabrics are exposed to higher strains, for example in the buttocks of a wearer or a wearer, at the same time increasing the yarn thickness of the knitwear.
- the yarn thickness can be reduced even with increasing mesh size.
- the adaptation of the yarn thickness can also be done according to the pattern.
- the device has a measuring device for determining a yarn tension of a warped, solidified roving emerging from the roving warp-and-fastening unit.
- the measuring device can be ensured that the warped, consolidated roving is fed with constant yarn tension of the respective knitting point of the knitting machine, whereby the warped, solidified roving processed particularly suitable and at the same time a knit fabric can be produced with high quality.
- the measuring device may also be used to determine a yarn transport speed or other process parameter.
- control the measuring device values of the spinning and / or knitting process, in which case one or more process parameters, such as the rotational speed of one or more pairs of draw rolls, can be adjusted.
- the device has at least one auxiliary thread feeding device which is connected to the drafting system and can be controlled by the pattern control for the knitting machine and / or as a function of stretching properties of an auxiliary thread to be fed to the drafting device.
- auxiliary thread feeding device By introducing an auxiliary thread into the warped, consolidated roving this is given an additional strength and stability.
- elongation properties of the warped, consolidated roving yarn can be influenced by the auxiliary thread.
- the Hilfsfadenzu slaughter the Hilfsfadenzu slaughter the Hilfsfadenzu slaughter the Hilfsfadenzu slaughter the auxiliary thread By feeding the auxiliary thread only during the main delay of the auxiliary thread passes through only one terminal point of the drafting system.
- the speed of the auxiliary yarn feeding device can be optimally adapted to the rotational speed of the last drafting roller pair and / or the pattern control of the knitting machine. Further, the auxiliary thread feeding device can also be controlled depending on the stretching properties of the auxiliary thread.
- the auxiliary thread may be elastic or inelastic.
- a core-sheath yarn is preferably produced in which the core is formed by the auxiliary thread.
- more than one auxiliary thread for example two or three auxiliary threads, can be supplied to the warped, consolidated roving.
- an unsightly shine-through effect of the knitwear produced such as, for example, a leggings or a pantyhose, can be avoided when the knitwear is stretched.
- a naturalschimmer bin also by the Magnification of the stitches in combination with the increase of the yarn thickness in areas of high elongation can be avoided.
- knitting systems of the knitting machine are each assigned at least two separate roving warping and consolidation units, which are independently of one another in terms of control technology.
- Such a configuration has proved to be favorable, in particular with regard to the application in a small circular knitting machine.
- a plurality of the roving warping and fastening units can also be combined to form a module and coupled in terms of control technology.
- Such an application is particularly advantageous with regard to the application in large circular knitting machine.
- all or only individual roving warping and fastening units can be coupled with control technology here.
- the object of the present invention is also achieved by a knitwear of the type mentioned, in which the yarn thickness of the warped, consolidated roving is formed depending on the respective mesh size of the knitted fabric, with increasing mesh size increases the Garndicke and with decreasing mesh size, the Garndicke decreases.
- the material used can be optimally adapted to the mesh structure of the knitwear.
- the yarn thickness of the warped, consolidated roving used for its production is formed as a function of the respective mesh size of the knitwear, the yarn thickness increasing with increasing mesh size and the yarn thickness decreasing as the mesh size decreases.
- the knitwear is a seamless, circular knit knitwear with changing diameter and yet constant opacity.
- the knitwear may be a stocking, the diameter of which increases in the calf area from bottom to top, whereby the mesh size in this calf area increases from bottom to top and yet the opacity remains the same, according to the invention in knitting this calf area from bottom to top, ie As the stitches become larger, both more and thicker yarn is fed to the knitting point. The same applies vice versa when knitting this calf area from top to bottom, where with decreasing mesh both less and thinner yarn is fed to the knitting point.
- the knitwear according to the invention is designed so that it has consistently the same transparency or opacity even in the stretched or worn state.
- the yarn thickness can also decrease as the mesh size increases, so that particularly transparent and particularly opaque areas can be produced.
- the knitwear may be a patterned knitwear.
- Figure 1 shows schematically a portion of a deformable in one embodiment of the method according to the invention as an intermediate warped roving yarn with different yarn thickness in a side view;
- Figure 2 schematically shows a possible embodiment of an inventive
- Figure 3 shows schematically a further possible embodiment of a device according to the invention in a sectional side view.
- FIG. 1 schematically shows a section of a warped roving 4b produced as an intermediate of an embodiment of the method according to the invention in a side view, the roving 4b having a length l in the example shown.
- the roving section of the roving 4b shown in FIG. 1 has three regions 41, 41 ', 42, which are distinguished by different yarn thicknesses d, d'. As shown in FIG. 1, roving 4b has a greater yarn thickness d 'in region 42 than in regions 41, 41'.
- yarn thickness d, d ' is one on a knitting machine which feeds the roving 4b in temporarily solidified form as warped, solid roving is adapted to knitting patterns.
- the yarn thickness d, d 'as well as the length of the regions in which the roving 4b has a larger or smaller diameter are pattern-specific. In this case, unlike in FIG.
- the roving 4b may also have a constant yarn thickness d, d 'over a long distance. Also, the yarn thickness d, d 'can vary in very short intervals. The regions 41, 41 ', 42, in which the yarn thickness d, d' changes, may regularly recur or be patterned irregularly.
- the warped roving 4b consists of individual fibers 40, which surround a not visible here auxiliary thread.
- the auxiliary thread may be elastic or inelastic.
- a warped roving can be formed, which has no auxiliary thread or which has more than one auxiliary thread.
- Figure 2 shows schematically an embodiment of an embodiment of a device 1 according to the invention in a sectional side view, wherein like reference numerals as in Figure 1 describe the same component and reference is made in this regard to the previous descriptions.
- the device 1 shown in FIG. 2 has a knitting machine 2 and a roving warping and fastening unit 10 coupled to the knitting machine 2.
- the roving drafting and fastening unit 10 has a drafting device 5, a spinning nozzle device 6 arranged downstream of the drafting device 5 in a yarn transporting direction A, and in the exemplary embodiment shown, a pinch roller pair 7 following the spinneret device 6 in the yarn transporting direction A.
- the drafting 5 has three in the Garntransport therapies A successively arranged at intervals 561, 562 mutually provided draw rolls pairs 51, 52, 53.
- the apparatus 1 may also have only two draw roll pairs 51, 53 or more than three draw roll pairs 51, 52, 53.
- the draw roll pairs 51, 52, 53 in turn are each formed by two rolls 51 1, 512, 521, 522, 531, 532.
- the sliver 4 a is made available by a roving supply unit 3, which has a flyer coil 31, and guided to the pair of input rollers 51.
- the sliver 4a is stretched by means of the draw roll pairs 51, 52, 53.
- a roller 51 1, 521, 531 of the respective drafting rollers pair 51, 52, 53 coupled to a drive 8, 8 ', 8 ", which drives the respective roller 51 1, 521, 531.
- the rollers 512, 522, 532 are mounted such that they can rotate opposite to the rollers 51 1, 521, 531.
- the pattern control 9 is further coupled to a schematically illustrated chording depth adjustment device 91 of the knitting machine 2.
- the process is advantageously controlled such that with increasing mesh size, the yarn thickness d 'increases and shrinks with decreasing meshes and the yarn thickness d, so that knits such as leggings or tights can be made, which even when worn a nearly constant transparency or Have opaque, which An unsightly show through at points, which may be stretched more than others, can be avoided.
- the process in alternative variants can also be regulated so that the yarn thickness d, d 'decreases with increasing mesh size and vice versa. Accordingly, particularly transparent areas can be formed in the knitwear.
- the warped roving 4b emerging from the drafting unit 5 subsequently enters a spinneret device 6.
- the warped roving 4b is rotated by means of air jets.
- the spinneret 6 consists of two successively arranged spinnerets 61, 62, which are air vortex nozzles.
- the air currents generated by the two spinnerets 61, 62 have opposite directions of rotation B, C, so that a false twisting wire is formed.
- the spinneret device 6 is in the embodiment shown in the Garntransportides A below a pair of clamping rollers 7 is provided, which has two mutually opposite directions rotatable pinch rollers 71, 72.
- the warped roving 4c emerging from the spinneret 6 is passed through the pinch rollers 71, 72 pressed against each other so that on the one hand a passage and on the other hand a nip point for the roving 4c are formed.
- the clamping point limits the fiber consolidation section after the spinneret device 6.
- the warped, consolidated roving 4d exits from the nip roller pair and is subsequently fed directly to the knitting machine 2.
- an inelastic auxiliary thread 22 is fed to the roving 4b with the aid of an auxiliary thread feeding device 220, which serves to increase the strength of the warped, consolidated roving 4d.
- the inelastic auxiliary thread 22 is withdrawn from a reel 24 with a pair of auxiliary thread pinch rollers 23, in the exemplary embodiment shown via a thread guide tube 26 fed to the drafting device 5 and integrated into the roving 4b.
- the inelastic auxiliary thread 22 is fed to the last pair of drawing rolls 53 in the yarn transporting direction A, so that the yarn feeding speed v 4 of the auxiliary yarn 22 must be adapted only to the rotational speed x 3 of the pair of delivery rollers 53.
- the thread tension of the inelastic auxiliary thread 22 can be checked.
- the device 1, 1 ' the yarn tension measuring device 43 for determining a yarn tension of a Vorgarnes 4d emerging from the auxiliary yarn nipping roller pair 23 4d, so that the roving 4d with continuous yarn tension of the knitting machine 2 can be supplied.
- an elastic auxiliary thread 25 for example an elastane thread, is fed to the roving 4b by means of another auxiliary thread feeding device 210.
- This elastic auxiliary thread 25 is passed through a peripheral drive with the possibility of setting an exact auxiliary thread tension via a yarn tension measuring device 42 and then fed to the draw roller pair 53.
- the elastic auxiliary thread 25, together with the inelastic auxiliary thread 22, is fed to the drafting device 5 via the thread guide tube 26 at a yarn feeding speed v 5 .
- the auxiliary yarn feeding device 220, 210 is controlled on the basis of the pattern control and / or the stretching properties of the auxiliary yarn 22, 25.
- the auxiliary thread 23, 25 can be used patterned.
- it can be selected whether an elastic auxiliary thread 25 or an inelastic auxiliary thread 22 is used.
- it can be decided on an application-specific basis whether only one auxiliary thread 22 or 25 or optionally a plurality of auxiliary threads 22, 25 are fed to the roving 4b. Insofar as a plurality of auxiliary threads 22, 25 are used, they should, as shown in FIG.
- auxiliary threads 220, 210 be fed to the drafting unit 5 with regard to the possibly different auxiliary thread tensions by means of separate auxiliary thread feeders 220, 210.
- a plurality of auxiliary threads can also be supplied by means of a single auxiliary thread feeding device.
- knitwear having meshes of different sizes can be produced simply, as a result of which, in view of the yarn thickness d, d 'which can be varied depending on the mesh size. very transparent or opaque knitwear can be provided.
- the yarn delivery speed is varied from the Vorgarnverzugsund solidification unit to the knitting machine, which is realized by changing the rotational speed of the last in Garntransportides A pair of draw rollers, ie the output roller pair 53.
- a knitwear having different technical properties can be produced.
- the fiber content in the finished yarn is changed in the process according to the invention.
- the auxiliary thread fineness is determined during the process.
- conductive auxiliary threads can be coated with different numbers of fibers, which in part produces different properties in the knit fabric produced in each case.
- the present invention it is possible to influence the abrasion resistance of a knitted fabric by adjusting the mesh size and the yarn thickness.
- the present invention can be used to influence the utility properties of a knit fabric, such as its moisture transport properties and / or heat retention capacity.
- one can also or alternatively influence the thermal conductivity and / or the thermal insulation properties of knitwear with the aid of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Of Fabric (AREA)
- Knitting Machines (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/481,680 US20190390378A1 (en) | 2017-01-27 | 2018-01-18 | Knitted fabric and method and device for producing the knitted fabric |
KR1020197025165A KR20190107134A (ko) | 2017-01-27 | 2018-01-18 | 편성포 및 이 편성포의 제조 방법과 제조 장치 |
JP2019540607A JP2020505526A (ja) | 2017-01-27 | 2018-01-18 | ニットウェア、ならびにこのニットウェアを製造するための方法および装置 |
EP18702334.6A EP3408436B1 (de) | 2017-01-27 | 2018-01-18 | Maschenware sowie verfahren und vorrichtung zum herstellen dieser maschenware |
CN201880008748.2A CN110249086A (zh) | 2017-01-27 | 2018-01-18 | 针织物以及制造针织物的方法和装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017101597.3A DE102017101597B4 (de) | 2017-01-27 | 2017-01-27 | Verfahren zum Herstellen einer Maschenware |
DEDE102017101597.3 | 2017-01-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018138605A1 true WO2018138605A1 (de) | 2018-08-02 |
Family
ID=61094557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2018/050298 WO2018138605A1 (de) | 2017-01-27 | 2018-01-18 | Maschenware sowie verfahren und vorrichtung zum herstellen dieser maschenware |
Country Status (8)
Country | Link |
---|---|
US (1) | US20190390378A1 (de) |
EP (1) | EP3408436B1 (de) |
JP (1) | JP2020505526A (de) |
KR (1) | KR20190107134A (de) |
CN (1) | CN110249086A (de) |
DE (1) | DE102017101597B4 (de) |
TW (1) | TW201839197A (de) |
WO (1) | WO2018138605A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1910034A1 (de) | 1968-03-01 | 1969-10-02 | Electro Matic Corp | Verfahren und Einrichtung zum Erzeugen von Garn mit regellos variierender Dicke |
DE102006037714A1 (de) * | 2006-08-07 | 2008-02-14 | Wilhelm Stahlecker Gmbh | Vorrichtung zum Herstellen einer Maschenware |
DE102011053396B3 (de) | 2011-09-08 | 2012-08-23 | Terrot Gmbh | Vorrichtung und Verfahren zur Herstellung von Maschenware |
WO2016091521A1 (de) | 2014-12-11 | 2016-06-16 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Maschine und verfahren zur herstellung von maschenware |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD51957A (de) | ||||
DE1660475U (de) | 1953-04-27 | 1953-07-30 | Hermann Klein | Transportable einrichtung mit umlegbarem tragbuegel. |
NL132929C (de) | 1961-02-18 | 1900-01-01 | ||
LU50788A1 (de) | 1965-04-08 | 1966-09-29 | ||
DE102015110980A1 (de) | 2015-07-07 | 2017-01-12 | Rieter Ingolstadt Gmbh | Streckwerk mit mehreren Faserbandführungen |
-
2017
- 2017-01-27 DE DE102017101597.3A patent/DE102017101597B4/de active Active
-
2018
- 2018-01-18 JP JP2019540607A patent/JP2020505526A/ja active Pending
- 2018-01-18 EP EP18702334.6A patent/EP3408436B1/de active Active
- 2018-01-18 US US16/481,680 patent/US20190390378A1/en not_active Abandoned
- 2018-01-18 KR KR1020197025165A patent/KR20190107134A/ko unknown
- 2018-01-18 WO PCT/IB2018/050298 patent/WO2018138605A1/de active Application Filing
- 2018-01-18 CN CN201880008748.2A patent/CN110249086A/zh active Pending
- 2018-01-23 TW TW107102329A patent/TW201839197A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1910034A1 (de) | 1968-03-01 | 1969-10-02 | Electro Matic Corp | Verfahren und Einrichtung zum Erzeugen von Garn mit regellos variierender Dicke |
DE102006037714A1 (de) * | 2006-08-07 | 2008-02-14 | Wilhelm Stahlecker Gmbh | Vorrichtung zum Herstellen einer Maschenware |
DE102011053396B3 (de) | 2011-09-08 | 2012-08-23 | Terrot Gmbh | Vorrichtung und Verfahren zur Herstellung von Maschenware |
WO2016091521A1 (de) | 2014-12-11 | 2016-06-16 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Maschine und verfahren zur herstellung von maschenware |
Also Published As
Publication number | Publication date |
---|---|
DE102017101597A1 (de) | 2018-08-02 |
EP3408436B1 (de) | 2020-03-11 |
DE102017101597B4 (de) | 2019-09-26 |
TW201839197A (zh) | 2018-11-01 |
KR20190107134A (ko) | 2019-09-18 |
EP3408436A1 (de) | 2018-12-05 |
CN110249086A (zh) | 2019-09-17 |
JP2020505526A (ja) | 2020-02-20 |
US20190390378A1 (en) | 2019-12-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1599625B1 (de) | Maschenware sowie verfahren und vorrichtung zu ihrer herstellung | |
DE202018102052U1 (de) | Recycelte Gewebestruktur und gewirkter Schuhoberflächenstoff | |
EP3371360B1 (de) | Vorrichtung und verfahren zur herstellung von maschenware | |
DE2151558A1 (de) | Verfahren und Vorrichtung zur Texturierung thermoplastischer Garne und die erhaltenen Erzeugnisse | |
WO2008017340A1 (de) | Vorrichtung zum herstellen einer maschenware | |
EP0161572B1 (de) | Verfahren zum Herstellen eines Mischgarns | |
EP3031967B1 (de) | Maschine und Verfahren zur Herstellung von Maschenware | |
DE202015009656U1 (de) | Filament-Kern für ein elastisches Garn, ein elastisches Verbundgarn, Textilgewebe und Anordnung zur Herstellung des elastischen Garns | |
DE102006037716A1 (de) | Vorrichtung zum Herstellen einer Maschenware | |
DE2645119C3 (de) | Verfahren zur Herstellung eines Coregaras | |
EP3408436B1 (de) | Maschenware sowie verfahren und vorrichtung zum herstellen dieser maschenware | |
DE2432440A1 (de) | Fuelliges garn und verfahren zu seiner herstellung | |
DE102006011212A1 (de) | Antrieb für eine Vorrichtung zur Herstellung einer Maschenware | |
DE2539272A1 (de) | Texturierter hochbausch-hybridfaden und verfahren zu seiner herstellung | |
WO1997000987A1 (de) | Anlage zur herstellung mindestens eines wirkbandes mit umhäkelten gummifäden | |
DE102006062364A1 (de) | Vorrichtung zum Herstellen einer Maschenware | |
EP3842578A1 (de) | Vorrichtung und verfahren zur herstellung eines core-garns | |
DE102006037713A1 (de) | Vorrichtung zum Herstellen einer Maschenware | |
DE102006062363B4 (de) | Vorrichtung zum Herstellen einer Maschenware mit Streckwerk | |
WO2000047804A1 (de) | Verfahren und vorrichtung sowie verwendung der vorrichtung zur herstellung eines mischgarnes bzw. kombinierten garnes | |
DE2407357A1 (de) | Garn und verfahren zu seiner herstellung | |
DE3243998C2 (de) | ||
DE3218663A1 (de) | Verfahren und vorrichtung zur herstellung von chenille auf kettenwirkmaschinen | |
WO2003002796A1 (de) | Verfahren und einrichtung zur herstellung von fäden, sowie nach dem verfahren hergestellter faden | |
DE2422690A1 (de) | Verfahren zur herstellung von strecktexturierten garnen mit verbesserten eigenschaften |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2018702334 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2018702334 Country of ref document: EP Effective date: 20180830 |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18702334 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2019540607 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20197025165 Country of ref document: KR Kind code of ref document: A |