EP2623654A1 - Agencement de barres de stockage d'un métier à tricoter à chaîne - Google Patents

Agencement de barres de stockage d'un métier à tricoter à chaîne Download PDF

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Publication number
EP2623654A1
EP2623654A1 EP12000751.3A EP12000751A EP2623654A1 EP 2623654 A1 EP2623654 A1 EP 2623654A1 EP 12000751 A EP12000751 A EP 12000751A EP 2623654 A1 EP2623654 A1 EP 2623654A1
Authority
EP
European Patent Office
Prior art keywords
drive
guide
guide bar
arrangement according
bar arrangement
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.)
Withdrawn
Application number
EP12000751.3A
Other languages
German (de)
English (en)
Inventor
Heiko Schadt
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.)
Karl Mayer Textilmaschinenfabrik GmbH
Original Assignee
Karl Mayer Textilmaschinenfabrik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Karl Mayer Textilmaschinenfabrik GmbH filed Critical Karl Mayer Textilmaschinenfabrik GmbH
Priority to EP12000751.3A priority Critical patent/EP2623654A1/fr
Priority to CN2012101433082A priority patent/CN103243476A/zh
Publication of EP2623654A1 publication Critical patent/EP2623654A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24—Thread guide bar assemblies
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24—Thread guide bar assemblies
    • D04B27/26—Shogging devices therefor
    • D04B27/30—Shogging devices therefor with driving-gear comprising force-multiplication devices
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24—Thread guide bar assemblies
    • D04B27/32—Thread guide bar assemblies with independently-movable thread guides controlled by Jacquard mechanisms

Definitions

  • the invention relates to a guide bar assembly of a warp knitting machine with at least one thread guide, which is movable by a drive means in an offset direction back and forth, wherein the drive means comprises a drive and a return device.
  • the invention will be described below with reference to a so-called "string barre” in which the thread guides, usually pin needles, are arranged on a pliable drive element. In order to move this drive element in both directions, it must be acted upon from its two ends with a clamping force. At one end, the drive acts on the drive element and at the other end acts the return device.
  • the invention is also applicable to guide bars, which carry a plurality of needles, which are arranged side by side and serve, for example, to produce a basic product.
  • a guide bar arrangement of the type mentioned is out DE 101 37 601 B4 known.
  • several groups of yarn guides are arranged in a bar body.
  • Each group has a drive element for the assigned thread guides.
  • the drive element is driven at one end by a drive motor and loaded at the other end by a restoring device with a restoring force.
  • the restoring device is designed here as an air cylinder.
  • the drive and the return device can also attack at the same end of the guide bar.
  • a warp knitting machine should be able to work with the highest possible working speed.
  • the working speed is often expressed in "revolutions per minute”. At each turn, a loop is usually formed.
  • Working speeds of 4,000 rpm are currently possible.
  • the invention has for its object to have the greatest possible freedom in the dimensioning of drive and / or restoring device.
  • This object is achieved in a guide bar assembly of the type mentioned above in that the restoring device and / or the drive are connected via a translation arrangement with the yarn guide.
  • the translation arrangement changes the force and path with which the drive or the restoring device act on the thread guide.
  • the product of force and path remains constant, ie at half power, the double path is required. At halfway the double force is required. If one uses such a translation arrangement, then one can use a drive and / or a restoring device, which in itself do not meet the desired requirements. For example, you can work with less force or with less deflection.
  • the path ultimately taken by the thread guide is determined by the translation arrangement.
  • the translation assembly comprises a pulley with a rope which is guided over at least one movable roller.
  • a pulley with at least one roller is a relatively simple embodiment of a translation arrangement. It works with low losses and can still react relatively quickly, which is advantageous at high working speeds of the warp knitting machine.
  • the movable roller is connected to the thread guide, wherein one end of the rope is fixed in place and the other end is connected to the return device or the drive.
  • the movement of the yarn guide with respect to the movement of the drive or the restoring device is reduced by a factor of 2.
  • the restoring device or the drive acts with twice the force on the thread guide. The higher force is particularly advantageous if the thread guide is driven by a slippery drive element, for example a wire or a wire rope.
  • the movable roller is connected to the restoring device or the drive, one end of the cable being stationary is fixed and the other end is connected to the thread guide.
  • the movement of the thread guide is twice as large as the corresponding movement of the restoring device or the drive. This results in lower speeds when retreating or when driving and therefore faster reactivity.
  • the movable roller is movable in the vertical direction.
  • gravity always acts in the direction of movement of the roller, so that additional fixations are not required.
  • the movable roller is guided by a guide.
  • the direction of movement of the roller deviates from the offset direction and the roller is connected via a deflection with the thread guide, the return device or the drive.
  • the deflection you win again greater flexibility in the design of the drive device.
  • the restoring device is connected to the yarn guide via a first transmission arrangement which has a first transmission ratio
  • the drive is connected to the yarn guide via a second transmission arrangement which has a second transmission ratio, wherein in particular the first gear ratio and the second gear ratio differ from each other.
  • the second translation arrangement can also be designed with a ratio of 1: 1, so that the drive acts directly on the thread guide.
  • the second transmission ratio is greater than the first transmission ratio.
  • the drive can thus act with a smaller force, but with a greater path than the restoring device on the yarn guide.
  • the first gear ratio is less than 1 and the second gear ratio is greater than 1. So it operates the reset device so that only short ways are provided here, but the reset device works with a larger restoring force.
  • the drive must generate longer movements, but he can work with a smaller force.
  • Drives with a larger stroke and smaller power are often cheaper than drives with a large force and a small stroke.
  • Fig. 1 shows in a highly schematic form a guide bar arrangement 1 of a warp knitting machine, not shown.
  • the guide bar arrangement has a thread guide 2 in the form of a laying or perforated needle.
  • the yarn guide 2 is attached to a drive element 3, which is formed in the present case as a thin rope made of wire or plastic or as a wire, rod or tape.
  • the drive element 3 is guided in a bar body 4.
  • the bar body 4 has for this purpose a guide groove for the drive element 3, which is not shown in detail.
  • a plurality of drive elements 3 are arranged in the barrel body 4 in order to be able to control different groups of thread guides 2.
  • the drive element 3 usually also carries more than just a yarn guide 2.
  • the yarn guide 2 is to be moved in the operation of the warp knitting machine for stitch formation in the offset direction 5, which is shown here by a double arrow.
  • the offset direction corresponds to the longitudinal direction of the bar body 4.
  • a drive 6 is provided, which is connected via the drive element 3 with the yarn guide 2.
  • the drive 6 is shown here as a linear drive. But it is also possible to form the drive 6 as a rotary drive, with suitable measures are taken to translate a rotational movement in a translational movement.
  • the other end of the drive element 3 is connected to a return device 7.
  • the return device 7 is shown in the present case as a spring. It can for example be designed as a helical spring. But it is also possible to realize the return means in other ways, for example by a piston-cylinder unit which is pressurized with pressurized fluid.
  • a first translation assembly 8 is provided between the drive 6 and the drive element 3. Between the restoring device 7 and the drive element 3, a second translation arrangement 9 is provided.
  • the translation assembly 9 is shown with two embodiments in the FIGS. 2 and 3 shown. It is obvious that a corresponding design can also be used for the translation arrangement 8. You can also do one of the completely omit both translation arrangements 8, 9.
  • the translation assembly 9 each have a pulley with a rope 10 and a movable roller 11.
  • the term "rope” is to be understood here broadly. It can also be a band or a chain, ie virtually all elements that can be guided around a movable roller 11.
  • the movable roller 11 is vertically movable, ie in the direction of gravity. It is guided here in a guide 12. For this purpose, it may be provided with a guide projection 13. In a manner not shown, the roller 11 but also be movable in other directions. If the direction of movement of the roller 11 does not coincide with the offset direction 5, then a deflection roller 14 is provided, which performs a corresponding deflection of the directions of movement.
  • the cable 10 is connected at one end 15 via the drive element 3 with the yarn guide 2.
  • the other end 16 of the rope 10 is fixed in place.
  • the movable roller 11 is connected to the return device 7.
  • a movement stroke of the movable roller 11 is half as large as an offset stroke of the yarn guide 2. Accordingly, the return device 7 also be moved only half as far as the yarn guide 2. This results in shorter paths in the return device 7 and thus lower speed. This is usually associated with a relatively good responsiveness. However, the return device 7 must be able to apply relatively high forces. In the present case, the forces must be twice as large as in a case in which the drive element 3 is directly connected to the restoring device 7.
  • the movable roller 11 is connected to the drive element 3.
  • the cable 10 is fixed at one end to the machine frame 17 and at the other end to the return device 7, which is also fixed to the machine frame 17.
  • the movement stroke of the movable roller 11 corresponds to the offset stroke of the thread guide 2.
  • the return device 7 must perform a twice as large movement. For this purpose, it can work with a restoring force that is half as great as in the case where the yarn guide 2 is connected directly to the restoring device 7 via the drive element 3.
  • FIGS. 2 and 3 illustrated embodiments of the translation arrangements combine, for example, for the translation assembly 9 after Fig. 1 the design after Fig. 2 use, while for the translation assembly 8, the embodiment of Fig. 3 used. In the latter case, the return device 7 is to be replaced by the drive 6.
  • Each drive element 3 is provided with its own drive 6 and its own return device 7. Accordingly, a corresponding transmission arrangement 8, 9 is provided for each drive element 3.
  • a translation arrangement 8, 9 can also be used when the yarn guides 2 are not attached to the drive element 3, but directly to the bar body 4, as is the case for example with a guide bar for the foundation of a knitted fabric. Also in this case one often uses a drive, which acts only in one direction, for example a pattern wheel or a pattern chain with a plunger adjacent thereto. This plunger is then held by a return device in contact with the pattern disk or pattern chain. Again, you can use a corresponding translation arrangement between the plunger and the guide bar or between the restoring device and the guide bar.
  • a pulley any translation arrangement can be used.
  • a pulley works relatively low loss and without interference, as they may arise, for example, by tooth meshing of gears.
  • the pulley can also have more than just a movable role, so that you can realize other ratios.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP12000751.3A 2012-02-04 2012-02-04 Agencement de barres de stockage d'un métier à tricoter à chaîne Withdrawn EP2623654A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12000751.3A EP2623654A1 (fr) 2012-02-04 2012-02-04 Agencement de barres de stockage d'un métier à tricoter à chaîne
CN2012101433082A CN103243476A (zh) 2012-02-04 2012-04-27 经编机的梳栉组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12000751.3A EP2623654A1 (fr) 2012-02-04 2012-02-04 Agencement de barres de stockage d'un métier à tricoter à chaîne

Publications (1)

Publication Number Publication Date
EP2623654A1 true EP2623654A1 (fr) 2013-08-07

Family

ID=45571354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12000751.3A Withdrawn EP2623654A1 (fr) 2012-02-04 2012-02-04 Agencement de barres de stockage d'un métier à tricoter à chaîne

Country Status (2)

Country Link
EP (1) EP2623654A1 (fr)
CN (1) CN103243476A (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1635816A1 (de) * 1967-04-19 1971-05-27 Ind Schauenstein Antriebsvorrichtung fuer den Schussfadenfuehrer einer Raschelmaschine mit Schusseintrag
US4139997A (en) * 1976-03-05 1979-02-20 Sulzer Brothers Limited Patterning device for actuating operating elements of textile machinery
EP1498531A1 (fr) * 2003-07-16 2005-01-19 KARL MAYER TEXTILMASCHINENFABRIK GmbH Métier à tricoter chaíne
DE10137601B4 (de) 2001-08-01 2006-09-07 Karl Mayer Textilmaschinenfabrik Gmbh Kettenwirkmaschine mit mindestens einer Musterlegebarre

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2925686A1 (de) * 1979-06-12 1980-12-18 Sulzer Ag Kettenwirkmaschine
DE2926325C2 (de) * 1979-06-15 1981-10-29 Gebrüder Sulzer AG, 8401 Winterthur Vorrichtung zur Programmsteuerung der Versatzbewegungen von Legeschienen an Kettenwirkmaschienen
DE4113953A1 (de) * 1991-01-24 1992-07-30 Textilma Ag Kettenwirkmaschine, insbesondere haekelgallonmaschine
CN2727203Y (zh) * 2004-08-06 2005-09-21 徐金林 拉动式梳栉横移装置
KR100980705B1 (ko) * 2010-01-20 2010-09-07 박승헌 랏셀 경편기의 가이드바 구동장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1635816A1 (de) * 1967-04-19 1971-05-27 Ind Schauenstein Antriebsvorrichtung fuer den Schussfadenfuehrer einer Raschelmaschine mit Schusseintrag
US4139997A (en) * 1976-03-05 1979-02-20 Sulzer Brothers Limited Patterning device for actuating operating elements of textile machinery
DE10137601B4 (de) 2001-08-01 2006-09-07 Karl Mayer Textilmaschinenfabrik Gmbh Kettenwirkmaschine mit mindestens einer Musterlegebarre
EP1498531A1 (fr) * 2003-07-16 2005-01-19 KARL MAYER TEXTILMASCHINENFABRIK GmbH Métier à tricoter chaíne

Also Published As

Publication number Publication date
CN103243476A (zh) 2013-08-14

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