EP0530632B1 - Verfahren und Anlage zur Herstellung eines Kettengewirks, insbesondere eines Häkelgalongewirks sowie Kettengewirk hergestellt nach dem Verfahren - Google Patents

Verfahren und Anlage zur Herstellung eines Kettengewirks, insbesondere eines Häkelgalongewirks sowie Kettengewirk hergestellt nach dem Verfahren Download PDF

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Publication number
EP0530632B1
EP0530632B1 EP19920114383 EP92114383A EP0530632B1 EP 0530632 B1 EP0530632 B1 EP 0530632B1 EP 19920114383 EP19920114383 EP 19920114383 EP 92114383 A EP92114383 A EP 92114383A EP 0530632 B1 EP0530632 B1 EP 0530632B1
Authority
EP
European Patent Office
Prior art keywords
thread
floating
warp
fabric
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19920114383
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0530632A1 (de
Inventor
Francisco Speich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Textilma AG
Original Assignee
Textilma AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Textilma AG filed Critical Textilma AG
Publication of EP0530632A1 publication Critical patent/EP0530632A1/de
Application granted granted Critical
Publication of EP0530632B1 publication Critical patent/EP0530632B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D04B35/36—Devices for printing, coating, or napping knitted fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/06—Patterned fabrics or articles

Definitions

  • the invention relates to a method for producing a warp-knitted fabric, in particular a crocheted gallon knitted fabric according to the preamble of claim 1 and a warp-knitted fabric produced according to the method according to claim 7 and a system for carrying out the method according to the preamble of claim 8.
  • US-A-5 007 253 describes a method, a warp knitted fabric and a system of the type mentioned at the outset, in which case the floating figure thread sections are first gripped and cut by sickle-like knives arranged perpendicular to the warp knit plane. At a further station, the now exposed sections of the floating figure threads are lifted and cut off by a cutting roller with knives arranged in a helical line.
  • the process and the system are relatively complicated, since a separate sickle-like knife is required for each path of the floating figure thread sections, which, moreover, has to be readjusted each time the pattern changes.
  • floating figure thread sections lying in the running direction of the warp knitted fabric in particular, cannot be detected. There is also a risk that the cut figure threads loosen in the warp knit, since the ends are not fixed. This prior art is therefore relatively complicated and cumbersome to handle and only allows a limited pattern.
  • the object of the invention is to further improve a process for the production of a warp knitted fabric, in particular a crocheted gallon knitted fabric with figure patterns, furthermore the patterned warp knitted fabric and an installation for carrying out the method of the type mentioned at the beginning.
  • the severing can not only be carried out at a single station, but all floating figurative thread sections lying in the longitudinal direction of the moving warp knitted fabric can also be detected in the simplest way.
  • thermal cutting the figure threads remaining in the basic knitting, if they are made of thermoplastic material, are provided with a melting head at the ends, which fixes the figure thread and thus prevents loosening from the basic knitting or at least makes it difficult.
  • a readjustment of the separating device is generally not necessary when the pattern changes. The process and the system are therefore extremely simple and require very little maintenance and adjustment.
  • figure thread is arranged floating on the basic knitted fabric between the figure patterns results in a significant simplification of the manufacturing process and a greater range of variation of the pattern. Nevertheless, the figure thread arranged floating on the basic knitted fabric does not have a disturbing effect, since it is separated after the warp knitting has been made, so that only the pure, integrated figure pattern is visible. This results in further significant advantages.
  • the warp knit can be much thinner and with a variety of Figure patterns can be made in different overlapping colors.
  • the material consumption is lower because there is no need for cover threads and their integration.
  • the range of variation in figure patterning also increases because the previously required laying bars for the cover threads are eliminated and can be used for figure patterning.
  • the warp knitted fabric is also much nicer and more appealing, since it has a homogeneous structure of the basic knitted fabric in the intermediate figure area, ie without covered figure threads showing through.
  • the back of the warp knit patterned in this way also shows great homogeneity in the structure of the basic knitted fabric, since here too there is no shimmering through of covered figure threads in the intermediate figure area.
  • Warp knits that are patterned in the weft effect are particularly advantageous, since they can be very finely structured.
  • the fineness of the binding site is only dependent on the number of stitches per centimeter that are integrated. Thus, the weave fineness is not dependent on the stitch pitch as in the previous warp knitted pattern.
  • weft effect patterning are, on the one hand, a fine weave structure and, on the other hand, a figure pattern that projects in relief above the basic knitted fabric.
  • warp-knitted warp knitted fabrics with overlapping figures and figure parts can be produced in any color.
  • figure patterns with long repeats in any position can be created in an economical manner.
  • the present process and the corresponding system eliminate the color printing operations that are still required for patterned articles. This means a significant cost saving, more economical production of warp knitted fabrics, in particular straps such as braces, webbing straps, underwear straps, lace straps and the like.
  • the separating device can be arranged independently of the warp knitting machine. However, an embodiment according to claim 9 is more advantageous.
  • a design of the severing device according to claim 10 is particularly advantageous. If appropriate, it can be expedient to use a flame burner for severing or melting the floating figure thread sections.
  • the separation of the floating figure thread sections is facilitated by an embodiment of the system according to claim 13.
  • An embodiment of the thread lifting device according to claim 14 is particularly advantageous, wherein the suction device can at the same time also serve to remove the separated figure thread sections.
  • An embodiment according to claim 15 is also for lifting of floating figure thread sections possible.
  • the system is provided with a suction device for the separated fig thread sections.
  • a wide variety of warp knitted fabrics in particular crocheted gallon knitted fabrics with a wide variety of figure patterns, can be produced.
  • the invention is particularly advantageous for the production of ribbons of various types, in particular braces, belt straps, underwear straps, lace straps and the like.
  • FIG. 1 shows a ribbon-shaped warp knitted fabric 1, which serves as the basic knitted fabric 2, on which, according to FIG. 2, figure patterns 4 are knitted, which are formed from four figure pattern parts 4a, 4b, 4c, 4d with corresponding figure threads 6a, 6b, 6c, 6d.
  • the figure threads lie floating on the base fabric 2 outside the figure patterns.
  • FIG. 3 shows the base fabric 2 of FIG. 2 provided with figure patterns 4 after the floating figure thread sections 7a, 7b, 7c, 7d have been separated.
  • FIGS. 4 and 5 show a first system for producing a warp knitted fabric according to FIGS. 1 to 3.
  • the system contains a warp knitting machine 8, which in the present example is designed as a crochet galloon machine.
  • a crochet gallon machine is described for example in WO 85/01527 and WO 85/04911.
  • Forward and returning knitting needles 10 are attached to a reciprocating knitting needle bar 12.
  • the knitting needles 10 designed as pusher needles contain pusher 14 which are moved back and forth by means of a pusher bar 16.
  • the knitting needles 10 are guided over a knock-down rail 18, which is preceded by a guide bar 20.
  • the tee rail 18 and the guide bar 20 form a gap 22 for removing the warp knitted fabric.
  • the knitting needles 10 are warp thread guides 24 upstream, which swing up and down on a warp thread guide 26 and are guided back and forth.
  • a lever mechanism 28 is used for the drive.
  • the warp thread guides 24 place the warp threads 30 in a circular movement into the knitting needles 10.
  • a first laying bar 32 with thread guides 34 for introducing a basic thread 36 is arranged.
  • a second laying bar 38 contains thread guides 40 for feeding a rubber thread 42.
  • a pattern laying bar 44 with pattern thread guides 46 is shown, which is used for feeding a figure thread 6. Although only one pattern laying bar 44 with pattern thread guides 46 is shown, several of them can also be arranged for feeding several figure threads, such as figure threads 6a, 6b, 6c, 6d of FIG.
  • the figure thread is fed in and integrated in the weft effect.
  • the pattern laying bar 44 is actuated in a manner not shown with a laying bar drive which is electronically controlled. In this way, it is very easy to economically produce figure patterns with any repeats and in any layout.
  • the knitting point 48 is followed by a take-off device 50 with rollers 52 arranged in pairs, via which the patterned warp knitted fabric 1, which consists of the basic knitted fabric 2 and the figure patterns 4 from the figure thread 6, is drawn off. Between the figure patterns 4, the figure thread 6 has floating figure thread sections 7 lying on the base fabric 2.
  • the warp knitting machine 8 is followed by a separation device 54, to which the warp knitted fabric 1 is fed via a deflection roller 56.
  • the separating device 54 has a guide 58, via which the warp knit 1 is guided to a further take-off device 60, which preferably runs more slowly than the take-off device 50 of the warp knitting machine, so that the warp knitted fabric 1 is longitudinally relaxed on the guide 58.
  • the guide 58 is associated with a thread lifting device 62, which is designed as a suction device and serves to lift the floating figure thread sections 7 from the basic knitted fabric 2, so that they are separated from one another downstream thermal cutting device 66 can be separated.
  • the separated figure thread sections 7 are sucked off through a nozzle 68 of the suction device 64 and can be collected in a collecting container, not shown here.
  • FIG. 5 shows the separating device 54 in detail.
  • the thermal cutting device 66 has an electrically heatable cutting wire 70 which is fastened in supports 72 arranged on both sides of the guide 58. On one side, a clamping screw 74 is used for fixation. On the other hand, a bolt 76 is clamped to the cutting wire 70 by means of a clamping screw 78, on which a spring 80 for prestressing the cutting wire 70 is supported.
  • the cutting wire 70 has a current flowing through it in a manner not shown in detail and is thereby heated.
  • the cutting wire 70 lies directly above the warp knitted fabric 1 guided over the guide 58 and separates the floating figure thread sections 7, which are lifted off the basic knitted fabric 2 by means of the nozzle 68.
  • the ends of the floating figure threads which are preferably made of thermoplastic material, are melted and secured by the thermal cutting.
  • FIG. 6 shows a further severing device 54a, which is designed analogously to the severing device of FIGS. 4 and 5, but the thread lifting device 62a is not designed as a suction device but as a rotting brush 82. This is associated with a suction device 84 for the removal of the cut figure thread sections 7.
  • FIG. 7 shows a further separation device 54b, which is designed thermally and has a flame burner 86, which is preferably designed as a gas burner.
  • the gas supplied via a line 88 is passed on to a nozzle 90, the gas flow being controllable by means of a regulator 92.
  • the on the Flame 94 generated by nozzle 90 is used to burn off or melt the floating figure thread sections 7 of the warp knitted fabric 1.
  • a suction device 64 in turn serves as thread lifting device 62 and to suck off the separated figure thread sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Knitting Of Fabric (AREA)
  • Treatment Of Fiber Materials (AREA)
EP19920114383 1991-09-02 1992-08-24 Verfahren und Anlage zur Herstellung eines Kettengewirks, insbesondere eines Häkelgalongewirks sowie Kettengewirk hergestellt nach dem Verfahren Expired - Lifetime EP0530632B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2571/91 1991-09-02
CH257191 1991-09-02

Publications (2)

Publication Number Publication Date
EP0530632A1 EP0530632A1 (de) 1993-03-10
EP0530632B1 true EP0530632B1 (de) 1996-02-14

Family

ID=4236794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920114383 Expired - Lifetime EP0530632B1 (de) 1991-09-02 1992-08-24 Verfahren und Anlage zur Herstellung eines Kettengewirks, insbesondere eines Häkelgalongewirks sowie Kettengewirk hergestellt nach dem Verfahren

Country Status (4)

Country Link
EP (1) EP0530632B1 (enrdf_load_stackoverflow)
DE (1) DE59205338D1 (enrdf_load_stackoverflow)
ES (1) ES2084226T3 (enrdf_load_stackoverflow)
TW (1) TW203638B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101187108B (zh) * 2006-11-24 2010-12-01 卡尔迈尔纺织机械制造有限公司 用于制造针织品的方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4432222C1 (de) * 1994-09-10 1996-05-02 Mayer Textilmaschf Verfahren und Kettenwirkmaschine zur Herstellung einer gemusterten Wirkware
CN104975427B (zh) * 2014-04-04 2018-05-25 卡尔迈尔纺织机械制造有限公司 生产编织制品的方法
CN113388957B (zh) * 2021-06-18 2022-11-01 台州铭龙塑业科技股份有限公司 脚垫表层面料及其生产方法和具有该脚垫表层面料的脚垫

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119167A (en) * 1962-10-17 1964-01-28 Curtis Marble Machine Co Shearing apparatus for textile fabrics
US3217680A (en) * 1964-04-01 1965-11-16 Harris Marshall Hosiery Mills Cutting device
DE1635270A1 (de) * 1967-06-23 1972-04-06 Mueller Franz Verfahren und Vorrichtung zum Behandeln von Textilbahnen
DE2244114A1 (de) * 1972-09-08 1974-03-14 Wtz Textile Verfahren und vorrichtung zur herstellung gemusterter durchschussware auf kettenwirkmaschinen, insbesondere raschelmaschinen
EP0157813A1 (de) * 1983-10-05 1985-10-16 Textilma AG Vorrichtung zum antrieb und gesteuerten vorschub-hub von schuss-stangen längs des nadelbetts auf wirk-, häkelgalon- und ähnlichen maschinen.
DE3430757A1 (de) * 1984-04-26 1985-10-31 Textilma Ag, Hergiswil Verfahren zur herstellung eines gemusterten kettengewirkes und kettenwirkmaschine zur ausfuehrung des verfahrens
US5007253A (en) * 1988-03-25 1991-04-16 Thomas Rahner Portable lace clipping and shearing apparatus for synchronous operation with a lace-knitting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101187108B (zh) * 2006-11-24 2010-12-01 卡尔迈尔纺织机械制造有限公司 用于制造针织品的方法

Also Published As

Publication number Publication date
DE59205338D1 (de) 1996-03-28
ES2084226T3 (es) 1996-05-01
TW203638B (enrdf_load_stackoverflow) 1993-04-11
EP0530632A1 (de) 1993-03-10

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