EP3205760B1 - Doppelfonturige kettenwirkmaschine - Google Patents

Doppelfonturige kettenwirkmaschine Download PDF

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Publication number
EP3205760B1
EP3205760B1 EP16154975.3A EP16154975A EP3205760B1 EP 3205760 B1 EP3205760 B1 EP 3205760B1 EP 16154975 A EP16154975 A EP 16154975A EP 3205760 B1 EP3205760 B1 EP 3205760B1
Authority
EP
European Patent Office
Prior art keywords
main shaft
knitting machine
drive motor
warp
machine according
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
EP16154975.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3205760A1 (de
Inventor
Markus Ott
Rolf Sandmann
Oliver Flick
Sebastian Oelstrom
Jürgen List
Matthias Ries
Gerhard Etges
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 EP16154975.3A priority Critical patent/EP3205760B1/de
Priority to CN201610252959.3A priority patent/CN107059238A/zh
Priority to TW105143900A priority patent/TWI744272B/zh
Priority to KR1020170016380A priority patent/KR101880680B1/ko
Publication of EP3205760A1 publication Critical patent/EP3205760A1/de
Application granted granted Critical
Publication of EP3205760B1 publication Critical patent/EP3205760B1/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
    • 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
    • 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
    • D04B35/28—Devices for lubricating machine parts
    • 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
    • D04B35/30—Devices for controlling temperature of machine parts
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B37/00—Auxiliary apparatus or devices for use with knitting machines
    • D04B37/06—Auxiliary apparatus or devices for use with knitting machines with warp knitting machines

Definitions

  • the invention relates to a double-shaped warp knitting machine with at least two main shafts, each of which controls at least one bar arrangement with bars.
  • Such a double-contour warp knitting machine is made EP 1 840 253 A2 known.
  • the two main shafts are controlled by a common drive motor via a gearbox.
  • the main shafts are rotated and drive, for example via a crank mechanism, in each case at least one bar, but as a rule a plurality of bars, knitting tools being fastened to the bars.
  • a crank mechanism can have several sections distributed over the length of the bars.
  • the main shafts In a warp knitting machine having more than one main shaft, the main shafts must be driven with some dependence on each other. This is currently being solved via a transmission device, which establishes a connection between the main shafts.
  • the transmission device in many cases has a belt which transmits the rotational movement from one main shaft to another main shaft.
  • DE 199 62 143 A1 and DE 102 43 398 A1 show a warp knitting machine with a plurality of ingots, each of these bars is connected to a servo drive associated with only this bar with the same direction of rotation.
  • DE 19 08 149 A1 shows a double-contour warp knitting machine in which the main shafts are driven synchronously by means of a toothed belt drive.
  • DE 10 2012 000 309 A1 shows a knitting machine for processing at least two webs.
  • the knitting machine has two effective areas, which are arranged side by side in the longitudinal direction of the machine. Accordingly, a main shaft has two main shaft sections, between which a main shaft drive is arranged.
  • the invention has for its object to provide a warp knitting machine with high productivity.
  • each main shaft is in drive connection with its own drive motor.
  • Each main shaft is thus driven by its own drive motor, so that a transmission device between two or more main shafts can be omitted. Accordingly, there is no negative effect on the transmission device due to a load change.
  • By using their own drive motors for the respective main shafts a smooth running of the warp knitting machine is possible, which then allows an increase in performance of the warp knitting machine. This is true even if at least one main shaft controls the associated bar assembly via a crank mechanism, which is a possible embodiment. You can not only increase the production speed, ie the speed of the main shafts, but also use longer main shafts, resulting in a larger working width.
  • At least one drive motor is arranged coaxially with the main shaft assigned to it.
  • a lateral load between the main shaft and the associated drive motor, as they occur for example when driven by belts or chains would, avoid.
  • the load on the bearings of the shaft of the drive motor and the respective main shaft remains low.
  • the life is increased.
  • the space requirement can be reduced.
  • No space for the respective drive motor is required laterally next to the main shafts so that, if appropriate, other auxiliary units of the warp knitting machine can be accommodated here.
  • the connection of the respective drive motor is machine dynamic through the positioning on the main shaft axis.
  • each drive motor acts directly on the main shaft assigned to it.
  • a direct connection means that the drive motor is connected to the main shaft without translation. The speed of the drive motor is thus transferred 1: 1 to the main shaft. Between the drive motor and the main shaft so no moving parts are available that could wear out.
  • each drive motor has a rotor, wherein at least one rotor is mounted on the main shaft associated with the drive motor.
  • at least one rotor is mounted on the main shaft associated with the drive motor.
  • the main shaft extends through the rotor with a shaft section.
  • the rotor may have a through-hole, so that the respective main shaft protrudes on both sides of the engine and results in a motor with two shaft ends. It is then possible, for example, to use a bearingless motor because the bearings can be made via the main shaft or its shaft section.
  • At least one drive motor is arranged eccentrically to the main shaft assigned to it.
  • the drive motor can be connected to the main shaft via a gear stage.
  • the drive motors are connected to a common control device.
  • the control device ensures that the drive motors drive the respective main shafts so that the rotational movements of the main shafts match each other.
  • a double-continuous warp knitting machine according to the invention as used for the production of plush or of spacer knitted fabrics, one needs a sufficiently accurate assignment of the movements of the individual billets which are responsible for the production of the basic knits and for the guidance of the spacer or plush threads. This can be easily achieved via a common control device.
  • the control device also has the advantage that it can electronically optimize the acceleration and force curves of the main shafts during a main shaft rotation, so that this has a positive influence on the entire machine dynamics. Regulated dynamics allow higher engine speeds. Furthermore, a thread-saving stitch formation is possible. With double-sided machines, the dynamics can be optimized depending on the different command states and occurring vibrations can be minimized or even completely avoided.
  • control device has an electronic transmission.
  • the electronic transmission allows the main shafts to be driven at different speeds, with speed changes, more precisely, rotational speed changes, even during a revolution of a main shaft can occur. This has a positive effect on the above-mentioned machine dynamics.
  • the electronic transmission has a variable ratio within one revolution.
  • the transmission ratio between the rotational movements of the main shafts can thus be changed during operation, preferably even during one revolution.
  • the load of the main shafts does not have to be done in the same way for all main shafts at the same time, so that you can compensate for these load conditions with an electronic transmission.
  • At least one drive motor is arranged in the middle of the axial length of the main shaft assigned to it.
  • Fig. 3 shows an end of a half of a warp knitting machine 1 in section from above.
  • the chain machine 1 has two main shafts 2, 2 a, 2 b, each having a first section designed as a working section 3 and a second section designed as an end shaft 4.
  • crank mechanisms are fastened in a manner not shown, which serve to drive bars, the bars carry knitting tools in a known manner.
  • the working section 3 and the end shaft 4 are rigidly but detachably connected to each other. How out Fig. 4 it can be seen, the end shaft 4 for this purpose a portion 5 of reduced diameter, which can be inserted into the working portion 3 of the main shaft 2 and then connected to the working section 3.
  • the main shaft 2 is in communication with a drive motor 6, which is arranged coaxially with the main shaft 2.
  • the drive motor 6 is connected directly to the main shaft 2, that is without the interposition of a transmission or a gear stage, this connection is preferably a rigid connection.
  • a rigid connection it is also possible to use a flexible coupling, for example a torsionally rigid and flexible coupling, such as a bellows coupling.
  • Fig. 4 shows a particularly preferred embodiment in section.
  • the end shaft 4 is in this case passed through the drive motor 6.
  • the drive motor 6 has a stator 7 and a rotor 8.
  • the rotor 8 is mounted on the end shaft 4, that is placed on the end shaft 4 and rotatably connected to the end shaft 4. The rotation of the rotor 8 thus transmits without further intermediate members directly and rigidly to the end shaft 4 and thus to the main shaft. 2
  • the motor 6 is designed without bearings.
  • the bearing of the rotor 8 in the stator 7 via a bearing of the end shaft 4 in a bearing 9, which is arranged outside of the drive motor 6.
  • This bearing 9 is located in a flange 10, which in turn is fixed in an end face 11 of a housing 12, wherein the housing 12 serves to receive the main shaft.
  • the main shaft 2 is arranged in the housing 12 and the drive motor 6 is fixed to the end face 11 of the housing 12.
  • the end shaft 4 protrudes through the end face 11 therethrough.
  • the housing 12 may also be referred to as a machine bed.
  • Fig. 4 How to get in Fig. 4 can recognize, enters the main shaft 2, more precisely, the end shaft 4, at one axial end in the drive motor 6 and protrudes with a free end 13 of the drive motor 6 out.
  • the free end 13 may be mounted in a further bearing 14.
  • the need to provide the second bearing 14 depends on the requirements in the operation of the warp knitting machine 1.
  • the stator 7 of the drive motor 6 has helical channels 15, through which a cooling fluid, such as oil, can be passed. Connections for the cooling liquid are not shown for reasons of clarity. They may be located, for example, under the drive motor 6, ie behind the in Fig. 3 represented drawing level.
  • a rotary encoder 16 is arranged at the free end 13 of the end shaft 4.
  • the rotary encoder 16 is designed as an absolute rotary encoder, i. he can absolutely determine the angular position of the main shaft 2.
  • a magnetic or optical encoding that can be detected by the encoder 16.
  • the rotary encoder 16 is preferably a non-contact rotary encoder.
  • the end face 11 which may also be referred to as an end wall, separates a working space 17 of the housing 12 from a head portion 18.
  • an oil sump for lubricating the bearings of the main shaft 2 may be provided in the working space 17.
  • such an oil sump is not required.
  • the drive motor 6 is designed as a speed-controlled motor, in particular as a rotating electrical motor. Particularly preferred in this case is a synchronous motor, which is driven by a control device having an inverter in order to set the desired speed can.
  • the drive motor 6 is directly and rigidly connected to the main shaft 2 by the rotor 8 of the drive motor 6 is mounted directly on the end shaft 4 of the main shaft 2.
  • the drive motor 6 is on the end wall 11 of the housing 12th Flanged and thus stored very stable. The risk of developing vibrations is thereby minimized.
  • the drive motor 6 Since the drive motor 6 is formed bearingless, it can be kept small and light.
  • the connection of the drive motor 6 is machine dynamic through the positioning on the axis of the main shaft 2.
  • the machine frame, i. the housing 12, in the region of the head part 18 is relatively light, which also affects machine dynamics. There are only relatively few parts required.
  • the drive motor 6 is virtually maintenance-free.
  • the drive motor may also be advantageous to arrange the drive motor in the middle of the axial length of the main shaft. For example, you can divide the drive shaft into two equal sections and then arrange the drive motor between the two sections to realize a so-called center drive.
  • Fig. 1 and 2 show a warp knitting machine according to the invention with two main shafts, which are provided for differentiation with the additives "a" and "b". The same is true with reference numerals that describe further elements already in the Fig. 3 and 4 have been mentioned.
  • the warp knitting machine has two main shafts 2a, 2b driven by drive motors 6a, 6b.
  • the two drive motors 6a, 6b are accommodated in the head part 18.
  • the flanges 10a, 10b recognizable ( Fig. 2 ), with which the main shafts 2 a, 2 b are mounted in the end face 11 of the housing 12.
  • each main shaft 2a, 2b communicates with its own drive motor 6a, 6b.
  • each drive motor 6a, 6b is arranged coaxially with its associated main shaft 2a, 2b and acts directly on the associated main shaft 2a, 2b.
  • a control device 22 is shown, which is connected to the two drive motors 6a, 6b.
  • the control device 22, which may comprise the above-mentioned inverter, feeds the two drive motors 6a, 6b with a multi-phase alternating current, so that the two drive motors 6a, 6b can be operated as induction machines.
  • the control device 22 also has an electronic gear 23, so that the rotary fields supplied to the drive motors 6a, 6b can have different frequencies. These frequencies may well change during one revolution of the respective main shaft 2a, 2b. The change does not have to be synchronous with the two drive motors 6a, 6b; it can also be counter-rotating.
  • the load of the main shafts 2a, 2b during a stitch formation process not necessarily uniform and similar.
  • the main shaft 2a needs to lift knitting tools in a portion of a knitting process
  • another load may be applied to the main shaft 2b in exactly the same period of time due to lowering the knitting tools driven by the main shaft 2b.
  • the current rotational speed of the main shaft 2a can be reduced in the short term, while it can be increased temporarily and temporarily when lowering the knitting tools. Then certain effects in the warp knitting machine can be precompensated and one can achieve smooth running even at higher machine speeds and with longer main shafts 2a, 2b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP16154975.3A 2016-02-10 2016-02-10 Doppelfonturige kettenwirkmaschine Active EP3205760B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP16154975.3A EP3205760B1 (de) 2016-02-10 2016-02-10 Doppelfonturige kettenwirkmaschine
CN201610252959.3A CN107059238A (zh) 2016-02-10 2016-04-22 经编机
TW105143900A TWI744272B (zh) 2016-02-10 2016-12-29 經紗編織機器
KR1020170016380A KR101880680B1 (ko) 2016-02-10 2017-02-06 경편기

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16154975.3A EP3205760B1 (de) 2016-02-10 2016-02-10 Doppelfonturige kettenwirkmaschine

Publications (2)

Publication Number Publication Date
EP3205760A1 EP3205760A1 (de) 2017-08-16
EP3205760B1 true EP3205760B1 (de) 2018-04-04

Family

ID=55345736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16154975.3A Active EP3205760B1 (de) 2016-02-10 2016-02-10 Doppelfonturige kettenwirkmaschine

Country Status (4)

Country Link
EP (1) EP3205760B1 (zh)
KR (1) KR101880680B1 (zh)
CN (1) CN107059238A (zh)
TW (1) TWI744272B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101974536B1 (ko) 2017-11-30 2019-05-02 주식회사 티엔에스 경편기의 경사절사위치추적시스템
EP3363939B1 (de) * 2018-02-27 2021-04-07 KARL MAYER STOLL R&D GmbH Doppelfonturige kettenwirkmaschine
CN110592798A (zh) * 2019-10-31 2019-12-20 晋江市鹏太机械科技有限公司 一种双电机经编机驱动装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB844012A (en) * 1957-08-10 1960-08-10 Karl Mayer Erste Hessische Wir Raschel-type knitting machine
DE1908149A1 (de) * 1969-02-19 1970-09-10 Guesken Fa J Wirkelementenantrieb bei Wirkmaschinen
JP2890124B2 (ja) * 1989-02-03 1999-05-10 日本マイヤー株式会社 経編機における編成要素の駆動装置
DE4215798C2 (de) * 1992-05-13 1994-03-24 Mayer Textilmaschf Kettenwirkmaschine
DE59602901D1 (de) * 1995-10-11 1999-09-30 Textilma Ag Wirkmaschine, insbesondere kettenwirkmaschine
DE19962143B4 (de) * 1999-12-22 2009-02-19 Cetex Institut für Textil- und Verarbeitungsmaschinen gemeinnützige GmbH Wirkmaschine, insbesondere Kettenwirkmaschine
DE20000582U1 (de) * 2000-01-14 2000-03-30 Mayer Textilmaschf Kettenwirkmaschine
DE10243398B4 (de) * 2001-09-20 2009-02-26 Cetex Institut für Textil- und Verarbeitungsmaschinen gemeinnützige GmbH Antriebseinrichtung für eine mit Wirkwerkzeugen besetzte Barre einer Wirkmaschine
KR200280245Y1 (ko) * 2002-04-03 2002-06-29 김재화 양면 편직물지 직조용 편직기
KR100459795B1 (ko) * 2002-06-19 2004-12-03 박승헌 경편기의 경사 송출 제어 시스템
DE10321331B4 (de) * 2003-05-13 2009-01-02 Karl Mayer Textilmaschinenfabrik Gmbh Wirkmaschine
ITBS20060060A1 (it) * 2006-03-16 2007-09-17 Santoni & C Spa Macchina tessile lineare
CN201933274U (zh) * 2010-11-30 2011-08-17 常州市武进五洋纺织机械有限公司 一种电子横移装置
DE102012000309B4 (de) * 2012-01-10 2014-11-13 Karl Mayer Textilmaschinenfabrik Gmbh Wirkmaschine zum Abarbeiten von mindestens zwei Warenbahnen
CN203320243U (zh) * 2013-05-14 2013-12-04 常州市武进五洋纺织机械有限公司 双针床经编机
CN104452078A (zh) * 2014-12-09 2015-03-25 常州市武进五洋纺织机械有限公司 一种双针床经编机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
TWI744272B (zh) 2021-11-01
KR101880680B1 (ko) 2018-07-20
CN107059238A (zh) 2017-08-18
TW201728797A (zh) 2017-08-16
EP3205760A1 (de) 2017-08-16
KR20170094499A (ko) 2017-08-18

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