EP3216903B1 - Kettenwirkmaschine - Google Patents

Kettenwirkmaschine Download PDF

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Publication number
EP3216903B1
EP3216903B1 EP16159777.8A EP16159777A EP3216903B1 EP 3216903 B1 EP3216903 B1 EP 3216903B1 EP 16159777 A EP16159777 A EP 16159777A EP 3216903 B1 EP3216903 B1 EP 3216903B1
Authority
EP
European Patent Office
Prior art keywords
bar
knitting machine
warp
slide
needle
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.)
Active
Application number
EP16159777.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3216903A1 (de
Inventor
Martin Schorlemmer
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 R&D 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 EP16159777.8A priority Critical patent/EP3216903B1/de
Priority to CN201610379684.XA priority patent/CN107177930B/zh
Publication of EP3216903A1 publication Critical patent/EP3216903A1/de
Application granted granted Critical
Publication of EP3216903B1 publication Critical patent/EP3216903B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D04B27/06—Needle bars; Sinker bars
    • D04B27/08—Driving devices therefor
    • 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

Definitions

  • the invention relates to a warp knitting machine with a needle bar, which is driven by a needle bar drive from a main shaft, and a slide bar, which is controlled by a designed as Schieberbarrindirektantrieb slide bar drive from the main shaft.
  • Such a warp knitting machine is made DE 19 60 871 A1 known. Since the slide bar is driven independently of the needle bar, you can make the movements of the hook parts of the knitting needles closing or leaving open tongue parts in any uniform or non-uniform change.
  • the needle bar carries a plurality of knitting needles, which are also referred to as working needles.
  • the knitting needles have a head which forms a kind of hook with which a thread can be pulled through a previously formed stitch in a stitch forming operation.
  • a pusher is provided for each knitting needle which covers the tip of the hook when the knitting needle head is pulled through the previously formed stitch.
  • the warp knitting machine has even more ingots, which carry other knitting tools, such as guide needles or the like.
  • the needle bar and the slide bar are both driven by the main shaft.
  • the center of gravity of the slide bar is farther from the axis of the main shaft than the center of mass of the needle bar.
  • the pusher bar must be faster accelerated and decelerated in a stitch forming process than the needle bar.
  • the slide bar drive has therefore been designed in such a way that a ram driven by the main shaft drives a lever which is connected in a rotationally fixed manner to a shaft. On this shaft, several other levers are rotatably mounted, which drive the slide bar via plunger. This makes it possible to provide distributed over the working width of the warp knitting machine a large number of other levers, so that the slide bar can be driven via a correspondingly large number of support points.
  • the shaft is provided in addition to a shaft about which the needle bar is pivoted in a stitch forming operation. Accordingly, a relatively large space is required.
  • US 6 092 398 A shows another warp knitting machine in the form of a crochet galloon machine with a knitting needle bar, which is driven by an eccentric drive of a main shaft. In addition, a separate drive for the slide bar is provided.
  • DE 690 15 599 T2 shows a control device for sliding needles in crochet galloon machines.
  • the crochet galloon machine has a knitting needle bar with a knitting needle bar drive and a slider needle bar with a drive formed separately therefrom.
  • the invention has for its object to provide a low-cost warp knitting machine that can work with high productivity.
  • the Schiebebarrendirektantrieb on a plunger which is connected via a hinge with a Schieberbarrennam, which is mounted in a linear guide.
  • the linear guide can be arranged for example in a Nadelbarrenarna, so that the needle bar and the slide bar can be moved together and the Schieberbarrindirektantrieb only controls the movement of the slide bar relative to the needle bar.
  • the linear guide has a guide direction and the slide bar direct drive has a drive direction which encloses an obtuse angle with the guide direction.
  • This obtuse angle is maintained throughout the stitching process. It may change slightly during a stitching process, but remains an obtuse angle.
  • the slide bar is designed as a hollow profile made of metal.
  • the mass of the slide bar can be kept small in a cost-effective manner, so that the slide bar direct drive must also accelerate and decelerate only this smaller mass. This has a positive effect on the working speed the warp knitting machine, which can be increased. The risk of vibration formation is kept small.
  • the hollow profile has a specific rigidity, which is greater by at least 40% than the specific rigidity of a solid profile with the same outer contour and of the same material.
  • the specific stiffness is the stiffness related to the mass of the hollow profile.
  • the needle bar drive preferably has a knock-off lever and a needle bar direct drive.
  • the knock-down lever is used to effect movement of the needle bar transversely to the offset direction, ie across the working width of the needle from the warp knitting machine.
  • the Nadelbarrendirektantrieb is then only responsible for the movement of the needle bar in the third direction, ie perpendicular to the transverse movement and perpendicular to the offset direction. Again, you can then spare more levers and waves.
  • the Schiebebrarrendirektantrieb and the Nadelbarrindirektantrieb each have one of the main shaft adjacent foot point and the foot are arranged in the same peripheral portion of the main shaft.
  • the foot points are arranged in a direction parallel to the axis of the main shaft one behind the other. You are thus at the same circumferential position of the main shaft, but can take during a stitch forming operation different radial positions relative to the main shaft, if necessary. This saves space.
  • the needle bar is designed as a hollow profile made of metal. Even with the needle bar can be saved in a cost-effective manner mass.
  • the sliding bar drive in a direction parallel to the axis of the main shaft on a plurality of drive sections, which have a distance of at least 70 cm, preferably at least 80 cm. This distance is significantly greater than the distance previously used when using lever-shaft lever drives. This is possible in particular if the slide bar has sufficient specific rigidity.
  • a part of a warp knitting machine 1 is shown with a needle bar 2, which carries a plurality of knitting needles, which are arranged perpendicular to the plane one behind the other.
  • the knitting needles are not shown in the drawing.
  • the warp knitting machine 1 has a Slider bar 3, which carries a slider for each knitting needle. The slides are not shown.
  • the slide bar 3 is mounted on a slide bar carrier 4, which is guided in a linear guide arrangement 5.
  • the linear guide assembly 5 has a plurality of linear guides, which are arranged perpendicular to the plane one behind the other.
  • the linear guide arrangement 5 has a guide direction 6.
  • the linear guide arrangement 5 is arranged in a needle bar carrier 7 which carries the needle bar 2.
  • the needle bar carrier 7 in turn is movably mounted on a carrier lever 8.
  • the carrier lever 8 is rotatably mounted on a shaft 9.
  • the shaft 9 is driven via a knock-off lever 10, which is also non-rotatably connected to the shaft 9, with a pivoting movement via a plunger 11 which is driven by a main shaft, not shown.
  • the drive of the plunger 11 through the main shaft can be done via a crank or an eccentric or otherwise.
  • the knock-off lever 10 and the carrier lever 8 may have a distance in a direction parallel to the axis of the shaft 9. It can be provided as a strike lever 10 more carrier lever 8.
  • a movement of the needle bar carrier 7 and thus the needle bar 2 with respect to the carrier lever 8 is effected by a Nadelbarrindirektantrieb having a needle bar plunger 12 which is pivotally connected to the needle bar carrier 7.
  • the needle bar plunger 12 has a foot point 13, via which the main shaft acts on the needle bar plunger 12.
  • the base which can also be provided, for example, with a roller or other suitable bearing point, for example, can rest against an eccentric or a cam on the main shaft.
  • a movement of the slide bar 3 relative to the needle bar 2 is effected by a slide bar drive, which is designed as Schieberbarrendirektantrieb.
  • the Schieberbarrindirektantrieb has a slide bar ram 14 having a base point 15.
  • the foot 15 is provided with a roller 16 which bears against the main shaft, wherein the main shaft may in turn comprise an eccentric or a cam structure.
  • the base 13 of the needle bar plunger 12 and the base 15 of the slide bar plunger 14 are offset parallel to the axis of the shaft 9. But they are in the same circumferential portion of the main shaft and preferably in a direction parallel to the axis of the main shaft directly behind one another, ie at the same angular position relative to the main shaft. In the radial direction to the main shaft they can, if necessary, have an offset.
  • the advantageous embodiment is shown.
  • the slide bar plunger 14 has a longitudinal axis 17.
  • the slider bar plunger 14 is moved in a direction parallel to this longitudinal axis 17.
  • the slide bar tappet 14 is connected at the end remote from the base 15 via a joint 18 with the slide bar carrier 4.
  • the longitudinal axis 17 corresponds to the drive direction of the slide bar plunger 14.
  • This drive direction, i. the longitudinal axis 17, always encloses an obtuse angle with the guide direction 6. As a result, although a small part of the drive power is not transmitted to the slide bar 3. But one is much more flexible in the design.
  • the slide bar 3 is formed of a metal and formed as a hollow profile.
  • magnesium is considered as metal.
  • the hollow profile of the slide bar 3 has a specific rigidity, ie a stiffness per mass, which is at least 40% greater than the specific rigidity of a solid profile with the same outer contour and of the same material.
  • the mass of the slide bar becomes small while increasing dynamic stiffness.
  • the result is an increased resistance to deformation, so that the number of "support points", ie the number of points where you must use a slide bar plunger 14 to drive the slide bar 3, can be kept small.
  • the slider-bar direct drive now only requires 5 interpolation points to increase the distance between adjacent interpolation points from 55 cm to 82.5 cm may vary somewhat depending on the machine width of the warp knitting machine 1. However, it is at least 70 cm, preferably at least 80 cm.
  • the needle bar 2 may be formed as a hollow profile made of metal, as shown.
  • the shaft 9 can be formed with a larger shaft diameter. This gives it a greater mechanical stability and is designed with a higher resistance to twisting. Accordingly, you can also keep the number of teeing lever 10 small. The smaller the number of strike levers 10, the lower the number of necessary bearings. Each bearing creates a loss due to friction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Transmission Devices (AREA)
  • Electric Stoves And Ranges (AREA)
EP16159777.8A 2016-03-11 2016-03-11 Kettenwirkmaschine Active EP3216903B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16159777.8A EP3216903B1 (de) 2016-03-11 2016-03-11 Kettenwirkmaschine
CN201610379684.XA CN107177930B (zh) 2016-03-11 2016-06-01 经编机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16159777.8A EP3216903B1 (de) 2016-03-11 2016-03-11 Kettenwirkmaschine

Publications (2)

Publication Number Publication Date
EP3216903A1 EP3216903A1 (de) 2017-09-13
EP3216903B1 true EP3216903B1 (de) 2019-05-08

Family

ID=55527380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16159777.8A Active EP3216903B1 (de) 2016-03-11 2016-03-11 Kettenwirkmaschine

Country Status (2)

Country Link
EP (1) EP3216903B1 (zh)
CN (1) CN107177930B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3757267A2 (de) 2020-11-06 2020-12-30 KARL MAYER STOLL R&D GmbH Wirkwerkzeugbarre für eine kettenwirkmaschine
EP4290001A1 (de) * 2022-06-10 2023-12-13 KARL MAYER STOLL R&D GmbH Kettenwirkmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4405793A1 (de) * 1994-02-23 1995-08-24 Roland Wunner Kettenwirkmaschine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1960871A1 (de) * 1968-12-06 1970-10-08 Schlafhorst & Co W Kettenwirkmaschine
DD227467A1 (de) * 1984-10-23 1985-09-18 Textima Veb K Tragschiene zur befestigung der gegenhalteschiene an einer naehwirkmaschine
IT1236902B (it) * 1989-12-20 1993-04-26 Dispositivo di comando per aghi a pistone in macchine a crochet
JP3856068B2 (ja) * 1998-11-16 2006-12-13 Ｙｋｋ株式会社 細幅クロッシェ編機における複合編針の作動機構
DE502004006772D1 (de) * 2004-05-27 2008-05-21 Mayer Textilmaschf Wirkwerkzeug-Barre
CN201842949U (zh) * 2010-10-26 2011-05-25 常州市润源经编机械有限公司 用于压纱型经编机的梳栉装置
CN204474894U (zh) * 2014-12-09 2015-07-15 常州市武进五洋纺织机械有限公司 一种单针床曲轴连杆经编机
CN105133172B (zh) * 2015-08-26 2017-03-22 江苏润源控股集团有限公司 具有双重提花效应的双针床经编机的编织机构
CN204959230U (zh) * 2015-08-26 2016-01-13 江苏润源控股集团有限公司 具有双重提花效应的双针床经编机的编织机构

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4405793A1 (de) * 1994-02-23 1995-08-24 Roland Wunner Kettenwirkmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3757267A2 (de) 2020-11-06 2020-12-30 KARL MAYER STOLL R&D GmbH Wirkwerkzeugbarre für eine kettenwirkmaschine
EP3757267A3 (de) * 2020-11-06 2021-04-21 KARL MAYER STOLL R&D GmbH Wirkwerkzeugbarre für eine kettenwirkmaschine
EP4290001A1 (de) * 2022-06-10 2023-12-13 KARL MAYER STOLL R&D GmbH Kettenwirkmaschine

Also Published As

Publication number Publication date
CN107177930A (zh) 2017-09-19
EP3216903A1 (de) 2017-09-13
CN107177930B (zh) 2019-05-14

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