Classifications

• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
  • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
  • D04B15/54—Thread guides
  • D04B15/58—Thread guides for circular knitting machines; Thread-changing devices
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
  • D04B1/10—Patterned fabrics or articles
  • D04B1/102—Patterned fabrics or articles with stitch pattern
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • 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
  • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
  • D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
  • D04B15/32—Cam systems or assemblies for operating knitting instruments
  • D04B15/322—Cam systems or assemblies for operating knitting instruments in circular knitting machines with needle cylinder and dial
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B9/00—Circular knitting machines with independently-movable needles
  • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
  • D04B9/28—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns
  • D04B9/34—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns by plating
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2403/00—Details of fabric structure established in the fabric forming process
  • D10B2403/01—Surface features
  • D10B2403/011—Dissimilar front and back faces
  • D10B2403/0114—Dissimilar front and back faces with one or more yarns appearing predominantly on one face, e.g. plated or paralleled yarns
• • 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
  • D10B2403/02—Cross-sectional features
  • D10B2403/021—Lofty fabric with equidistantly spaced front and back plies, e.g. spacer fabrics

Definitions

• the invention relates to a spacer fabric according to the preamble of claim 1 and a method and a knitting machine for its production according to the preambles of claims 8 and 12.
• Spacer knits which consist of two interconnected by a spacer thread webs are used for example for the production of sports clothing pieces such as training or warm-keeping suits and inserts for the sole or sidewall area of shoes (eg DE 74 25 934 Ul, DE 28 50 823 Al). It is therefore u. a. it is desirable to provide such spacer knitwear with cross-directional extensibility and elasticity depending on the particular case, thereby increasing the wearing comfort.
• Knitting machines of this type if the needles of the cylinder and the dial are gap, also referred to as fine ribbing machines, at least if they have smaller needle pitches and large diameter of z.
• a disadvantage of such knitting machines is that the two webs must each be made with all the needles of one or the other needle bed, which is why the transverse elasticity and transverse strain and other properties only by the choice of the yarn used and only in small limits can be changed.
• the technical problem underlying the invention is to provide a spacer fabric of the type described at the outset whose properties are changed within wide limits, in particular with regard to elasticity and extensibility can be.
• a method and a knitting machine for producing such a spacer knit are to be proposed.
• the invention has the advantage that the properties of the web produced on the needles of a needle bed, and thus also the spacing knitted fabric as a whole, can be influenced considerably more than hitherto by the choice and type of integration of the plating thread.
• the application of a little stretchy thread material such.
• B. Polyester has in connection with z. B. in the knitting 1: 1 incorporated floats result in that in the transverse direction (course direction) very little stretchable goods is obtained.
• the use of an elastomer thread as a plating thread leads to a very flexible product.
• Fig. 1 shows schematically the structure of a erf ⁇ ndungswashen spacer knitted fabric
• 2 shows a schematic radial section through the essential parts of the invention for a circular knitting machine for producing a spacer knitted fabric
• FIG. 3 shows the interior view of a lock of a first needle bed of a knitting machine according to the invention.
• FIG. 4a and 4b schematically show the needles and the lock tracks of six successive knitting systems of a knitting machine according to the invention for producing the spacer knitted fabric according to FIG. 1.
• Fig. 1 shows schematically six courses 1 to 6 of a spacer knitted fabric according to the invention.
• all courses 1 to 6 indicate in the upper area drawn, long and short dashes 7 and 8 respectively the needles of a first needle bed, z.
• long and short dashes 9, 10 respectively the needles of a second, the first needle bed opposite needle bed, z.
• B. a needle cylinder, with the Rippnadeln 7, 8 and the cylinder needles 9, 10 z. B. differ by the height or position of their feet.
• the Rippnadeln 7, 8 and cylinder needles 9, 10 on gap, d. H. they are offset from each other by half a needle pitch relative to each other.
• the rows of stitches 1 and 4 are formed with three threads each, with a main thread 11 shown in solid lines, a first plating thread 12 shown in dashed lines and a second plating thread 14 shown in phantom.
• the background thread 11 is at all times existing cylinder needles 9, 10 processed into a mesh 15 and 16 respectively.
• the first plating thread 12 is filled with every other, z. B. odd-numbered cylinder needle 9 incorporated into the mesh 15 and placed in between afloat, whereby first floats 17 arise.
• the second plating thread 14 is with all the rest, z. B. even-numbered cylinder needles 10 incorporated into the mesh 16 and placed between these fast, causing floats 18 arise.
• courses 2 and 5 is knitted with a ground yarn 19 alone on all Rippnadeln 7, 8, whereby stitches 20 arise.
• the courses 2 and 5 thus form a second web in the form of a smooth, with all Rippnadeln 7, 8 basic knitted fabric.
• spacer threads 21a and 21b are processed.
• the spacer threads 21a, 21b can in principle be processed in any manner known per se in spacer knits. In the embodiment, it is provided that the spacer threads 21a, 21b consistently connect to the first and the second fabric web in the manner of tuck stitches.
• the spacer thread 21a is for this purpose z. B. in the course 3 of the odd-numbered cylinder and Rippnadeln 7 and 9 each processed to a tearing mesh 22, 23, while the spacer thread 21 b in the course 6 z. B. only from the even cylinder and Rippnadeln 8 and 10 each as a tether mesh 24, 25 is involved.
• a complete section of the spacer knit thus consists of six courses, followed by further sections with similarly formed courses 1 to 6 follow.
• the order in which the various courses follow each other is largely changeable.
• the first course can be formed with the Rippnadeln and the second course with the cylinder needles (eg DE 74 25 934 Ul).
• the second course with the cylinder needles (eg DE 74 25 934 Ul).
• selected courses (here 1 and 4) of the first web contain at least one first plating thread 12 or 14 inserted in addition to a first thread 11, which together with the first thread 11 results in two-thread stitches 9 or 10 and floats 17 or 18 is processed.
• both the character and the properties, in particular the elastic properties of the spacer knitted fabric can be chosen largely as desired.
• two additional Plattierfäden 12, 14 in the knitting 1: 1 inserted for this purpose according to FIG.
• the structure patterns that can be produced in this way are manifold and can be selected depending on the requirements made in the individual case.
• the spacer fabric described with reference to FIG. 1 is preferably produced on a circular-edge knitting machine, in particular a so-called fine-ribbed machine, the most important components of which are illustrated schematically in FIGS. 2 to 4.
• a conventional circular knitting machine includes a first needle bed in the form of a needle cylinder 31, which is preferably rotatably mounted about a machine axis and provided at its periphery with conventional, parallel to the machine axis webs 32. These form between them grooves in which cylinder needles 33, preferably conventional cylinder needles, are mounted displaceably in the vertical direction.
• a cylinder lock 34 surrounding the needle cylinder 31 points to a knitting system u shown in FIG. a.
• Lock parts 35 the more detail below lays Schlossbahnen form, in which feet 36 of the cylinder needles 33 are guided in order to give them the usual ejection and withdrawal movements.
• the second needle bed arranged in the form of a dial plate 37, which is preferably rotatable together with the needle cylinder 31 about the machine axis and on its upper side usual, arranged perpendicular to the machine axis webs 38 has.
• These form between them grooves, in which rib needles 39, preferably conventional latch needles, are mounted displaceably in the radial direction.
• the Rippnadeln 39 and the cylinder needles 33 are offset relative to each other in the circumferential direction of the needle cylinder 31, preferably by half a needle pitch.
• a ripple lock 40 is arranged, which is provided on the knitting system shown in FIG. 2, inter alia, with lock parts 41, which form further below explained lock tracks, in which feet 42 of the Rippnadeln 39 are guided to these the usual Austriebs- and deduction movements.
• the knitting system according to FIG. 2 is associated with a thread guide 44 fastened to a holder 43, in order to supply the cylinder and ripple needles 33, 39 with the threads required for stitch formation.
• Circular knitting machines of the type described are the expert u. a. From the above-mentioned documents (in particular DE 103 20 533 Al) generally known, which is why there is no need for further explanation here. However, it is clear that in the embodiment of the needle cylinder 31 are representative of any arbitrary per se, first needle bed and the dial 37 representative of a standing opposite this, also known per se, second needle bed.
• 3 of 4a and 4b show an inventive design of the needles (here der- and Rippnadeln) of a first and second needle bed and the associated locks (here cylinder and Rippschlösser).
• the grooves of the Nadelzy Linders 31 shown in FIG. 3 alternately (1: 1) with cylinder needles 46 and 47 are occupied, which have arranged at different locations feet.
• the cylinder needles 46 have a lower foot 48 and an upper (high) foot 49, while the cylinder needles 47 also have the lower foot 48 but a middle (deep) foot 50 interposed between the lower foot 48 and the upper foot 49 of the cylinder needles 46 is arranged.
• the grooves of the dial 37 of FIG. 4a are provided with rib needles 51a, 51b each having a lower leg 52 and alternately a middle leg 53a and an upper leg 53b.
• a cylinder lock 50 (FIG. 3) for a knitting system A (FIG. 4a) suitable for producing the courses 1 and 4 is provided with lock parts 55 to 58 according to the invention, which form three lock tracks for the three feet 48, 49 and 50.
• the cylinder lock 54 designed in this way replaces the known cylinder lock 34 shown in FIG. 2 according to the invention.
• a lock track formed by the lock member 58 for the feet 49 of the cylinder needles 46 includes, as particularly Fig. 4a shows, a rising portion 59a, which leads to a knitting position (position II in Fig. 4a), upon reaching one in the hook of any cylinder needle 46 mesh has slid over the tongue on the shaft of the cylinder needle 46. Further expulsion of the cylinder needles 46 is prevented by the lower leg 48, which cooperates with a lower edge of the lock member 56.
• the section 59a is adjoined by a section 60a, through which the cylinder needle 46 is first withdrawn to such an extent that, approximately in a position Gl-Gl (FIG. 4a), a base thread supplied by a thread guide 61 and corresponding to the background thread 11 according to FIG in the cylinder needle 46 and the hook is inserted.
• the section 60a is adjoined by a section 62 along which the cylinder needles 46 are not further lowered so that they can receive a plating thread corresponding to the first plating thread 12 (FIG. 1) in a position Pl-Pl (FIG. which is supplied by a schematically indicated yarn guide 63.
• the foot 49 then passes under the guidance of the foot 48 and the lock member 56 into a channel 64 (Fig.
• the lock groove 57 formed by the lock member 57 associated with the feet 50 of the cylinder needles 47 corresponds except for a punctured in Fig. 4a indicated area of the above for the feet 49 of the cylinder needles 46 Schlossbahn, especially with regard to their sections 59b, 60b and 66b.
• the cam track for the feet 50 in FIG. 4a is shown substantially lower than this is actually the case. Since the cylinder needles 46 and 47 in Nadelzy cylinder 31 each side by side and not, as shown in Fig. 4a, are arranged below each other, the lower castle track is actually separated only by a distance from the upper castle track, the distance of the feet 49 and 50 corresponds to each other.
• the three yarn guides 61, 63 and 65 are again shown in Fig. 4a in the region of the lower castle track.
• the lock track for the legs 50 differs from that for the legs 49 substantially only in that it has a section 68 and a section 69 following in the direction of knitting v.
• the portion 68 serves the purpose of the cylinder needles 47 after the Recording of the basic thread from the yarn guide 61 deducted so deep into an intermediate position that it does not receive the first plating thread presented by this when passing the thread guide 63, her hook but still remains open.
• the section 69 has the task of expelling the foot 50 and thus the cylinder needle 47 again so high that they in passing the thread guide 65 receives the supplied by this, the plating thread 14 in Fig. 1 corresponding plating thread in addition to the main thread (position P2- P2- in Fig. 4a).
• the sections 68, 69 are preferably realized according to Fig. 3 by a formed in the lock part 57 channel 70, in which the feet 50 are guided by means of the lock member 56 and the lower feet 48, which also are present at the cylinder needles 47.
• the lock of the second needle bed in the exemplary embodiment thus the Rippsch 40 (Fig. 2), has for the feet 53a and 53b shown in Fig. 4a of the Rippnadeln 51a, 51b in the knitting system A only one lock track 71a and 71b, the one Not knitting the Rippnadeln 51 a, 51 b corresponds, so that they remain idle in the system A.
• the ripple lock is provided with customary ejection sections 72 a and 72 b leading into a knitting position and subsequent withdrawal sections 73 a, 73 b leading into the knock-off position, analogous to FIG. 3 on the feet 52 and 53 a. 53b act.
• all the rib needles 51a, 51b on the knitting system B are selected for knitting so as to be one of a
• Thread guide 74 supplied, the basic thread 19 of FIG. 1 corresponding Grundfa- pick up (position G2-G2) and process into stitches.
• the cylinder lock has in the knitting system B only one track section 75a, 75b for the feet 49, 50, which essentially corresponds to a non-knitting position for the cylinder needles 46, 47, so that they remain inactive in the system B. This results in the knitting system B, the row of stitches 2 of FIG. 1st
• a spacer thread corresponding to the spacing thread 21a according to FIG. 1 is fed by means of a thread guide 76.
• the cylinder lock on a each with a Austriebs- and deduction section 77, 78 provided Castle track, which is assigned to the feet 49 of the cylinder needles 46 alone.
• the expulsion section 77 leads into a catching position, so that the spacer thread 21a according to FIG. 1 is supplied to only every second cylinder needle (that is to say here the cylinder needles 46) in the catching position.
• Fig. 4b corresponds to the formation of the cylinder and Rippsches in the knitting system D of the system A and in the knitting system E of the system B, so that a re-description is not required.
• the knitting system D the course of stitches 4 and in the knitting system E the course of stitches 5 of the spacer knitted fabric according to FIG. 1 are formed.
• a spacer thread 21b according to FIG. 1 corresponding spacer thread is fed by means of a thread guide 81 (position AF2-AF2).
• the cylinder lock In contrast to the knitting system C, the cylinder lock here has a lock track provided with a respective expulsion and withdrawal section 82, 83, which acts solely on the feet 50 of the cylinder needles 47, with the expulsion section 82 leading into the catching position. Accordingly, the Rippsch in the knitting system F a leading into the catching position Austriebsabêt 84 and a take-off section 85, which are associated solely with the feet 53b of the Rippnadeln 51b. This results in the knitting system F, the row of stitches 6 of the spacer fabric of FIG. 1st
• the spacer fabric would consist of a plurality of sections, which are formed from the three courses 1 to 3 of FIG.
• z. B a polyester yarn used for both the main thread as well as for the Plattierfäden, then there is a spacer fabric, which is a web in the transverse direction very little stretchy and their extensibility z. B. is only one-tenth of what is achievable with a standard Rippware.
• the invention is not limited to the described embodiment, which can be modified in many ways. This applies initially in terms of Use of two plating threads 12 and 14. It would be possible, for example, to omit one of the two plating threads. In this case, z. For example, one of the thread guides (eg 65) is missing and the track section 69 is omitted.
• the selection means by means of which the cylinder needles 46, 47 for receiving the first or second plating threads 12, 14 and the cylinder and dial needles for receiving the spacer threads 21a, 21b are selected are largely arbitrary. In principle, all agents can be used, as are well known in particular for the production of Jacquard patterns. Instead of the 1: 1 selection shown in FIG.
• a selection in the sense of a 1: 2, 2: 2, 1: 3 pattern or the like for the plating threads 12, 14 could alternatively be made, for example in the Nadelzylindernuten after a cylinder needle 46 each two or three cylinder needles 47 are used (or vice versa).
• Corresponding selection possibilities are found in knitting machines with electromagnetic or electrical selection means for the needles. It would also be conceivable to produce the webs consisting of the ground threads 11 and 19 not with all, but only with selected cylinder and / or Rippnadeln, so that already result from flooding patterns. Further, instead of latch needles any other known in knitting technology needles, in particular z. B.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Knitting Of Fabric (AREA)
• Knitting Machines (AREA)

Applications Claiming Priority (2)

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• 2008
  • 2008-01-25 DE DE102008006504A patent/DE102008006504A1/de not_active Withdrawn
• 2009
  • 2009-01-07 TW TW098100365A patent/TW201002889A/zh unknown
  • 2009-01-19 WO PCT/DE2009/000075 patent/WO2009092363A2/fr active Application Filing
  • 2009-01-19 EP EP09704407A patent/EP2134892B1/fr active Active
  • 2009-01-19 AT AT09704407T patent/ATE511558T1/de active
  • 2009-01-19 JP JP2010543374A patent/JP2011511171A/ja active Pending

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