EP3476990B1 - Système de barres à passettes d'un métier chaîne et dispositif de barres à passettes - Google Patents

Système de barres à passettes d'un métier chaîne et dispositif de barres à passettes Download PDF

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Publication number
EP3476990B1
EP3476990B1 EP17198189.7A EP17198189A EP3476990B1 EP 3476990 B1 EP3476990 B1 EP 3476990B1 EP 17198189 A EP17198189 A EP 17198189A EP 3476990 B1 EP3476990 B1 EP 3476990B1
Authority
EP
European Patent Office
Prior art keywords
guide bar
drive
tappet
movement
rotation
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
EP17198189.7A
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German (de)
English (en)
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EP3476990A1 (fr
Inventor
Michael Ruh
Georg Kraus
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 Stoll R&D GmbH
Original Assignee
Karl Mayer Stoll R&D 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 Stoll R&D GmbH filed Critical Karl Mayer Stoll R&D GmbH
Priority to EP17198189.7A priority Critical patent/EP3476990B1/fr
Priority to CN201810072656.2A priority patent/CN109706614B/zh
Priority to TW107137229A priority patent/TWI744561B/zh
Priority to KR1020180127491A priority patent/KR20190046676A/ko
Publication of EP3476990A1 publication Critical patent/EP3476990A1/fr
Application granted granted Critical
Publication of EP3476990B1 publication Critical patent/EP3476990B1/fr
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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
    • D04B27/26—Shogging devices therefor
    • 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 guide bar drive of a warp knitting machine with the features of the preamble of claim 1.
  • the invention also relates to a guide bar arrangement with at least one guide bar and such a drive.
  • Such a guide bar drive and such a guide bar arrangement are, for example, from EP 2 982 788 A1 known.
  • Several motors are arranged next to one another in the offset direction.
  • the drive tappets are each designed as connecting rods which have recesses through which a drive shaft of a drive motor arranged closer to the guide bar is guided.
  • Another guide bar drive is off EP 1 013 812 A1 known.
  • the shaft of a motor is connected to a connecting rod.
  • CN 203113042 U shows a crochet machine with a bar that is driven by a rotating lever and a connecting rod.
  • DE 295 16 290 U1 shows a multibar warp knitting machine with servo drive for the guide bars.
  • the servo drive has a large number of motors which are arranged one behind the other in the offset direction.
  • the motors can act on the guide bars, for example, via a rack and pinion connection.
  • Another possibility is to design a transmission element as an angle lever.
  • DE 199 63 990 A1 shows a warp knitting machine with a pattern device, which has a number of pattern wheels which are arranged on a common pattern wheel shaft and are jointly driven by an electric motor. Under the influence of a spring, feeler rollers rest against the circumference of the sample wheels and transfer a reciprocating offset movement to a guide bar via a rod.
  • the invention is based on the object of being able to individually control a guide bar in the offset direction with little effort.
  • the drive tappet then acts as a type of connecting rod which converts a rotational movement of the output element of the motor arrangement into a translational movement of the guide bar.
  • the translational component of the movement of the drive ram can then be transferred to the guide bar.
  • the conversion of the rotational movement into a translational movement can be achieved with relatively little effort.
  • the motor arrangement preferably has an electric motor which can be controlled with a high degree of accuracy, for example a stepping motor or a brushless direct current motor. This enables precise control of the movement of the guide bar.
  • the operative connection has a pin which is arranged eccentrically on the output element and which engages in an eye on the drive tappet. This results in a form-fitting connection between the output element and the drive tappet, through which, during a rotational movement of the Output element causes a translational movement of the drive plunger in both directions.
  • a barrel bearing is arranged between the pin and the eye.
  • the barrel bearing is a rolling bearing with spherical rolling elements that is able to compensate for misalignments between the axis of rotation and an axis of the journal.
  • the pin and the axis of rotation therefore no longer have to be arranged exactly parallel to one another, which simplifies the assembly and adjustment of the guide bar drive.
  • the axis of rotation is preferably aligned perpendicular to the direction of movement of the drive plunger. This keeps the load on the operative connection between the output element and the drive tappet small.
  • the motor arrangement can be arranged perpendicular to the direction of offset, with sufficient installation space generally being available here.
  • the output element preferably has a movement limiting device which limits a rotation of the output element to a movement range of ⁇ 30 ° with respect to a neutral position.
  • the output element is therefore rotated a maximum of 30 ° in both directions with respect to the neutral position.
  • the geometry having the drive plunger changes only to an acceptable extent, ie there is practically only one movement component in the offset direction.
  • a component of movement transverse to the direction of offset is negligible.
  • the movement limiting device can be designed mechanically. However, it is advantageous if the movement limiting device is contained in a control of the motor arrangement.
  • the output element is preferably guided through a bearing housing, at one end of which the motor arrangement is fastened and at the other end of which a bearing for the output element is arranged.
  • This keeps the loads on the motor bearings, i.e. a bearing for the output element inside the motor, low. Vibration phenomena can be kept small by a corresponding design of the bearing housing.
  • the drive tappet has an anti-twist device.
  • the anti-rotation device ensures that the drive tappet cannot rotate about its longitudinal axis, that is, that it maintains its alignment with the output element. This keeps the loads on the bearing low.
  • the drive tappet advantageously has a spiral spring section.
  • the spiral spring section can be formed, for example, by a section which, compared to the remainder of the drive plunger, has a reduced dimension in the direction in which bends are to be permitted.
  • the movement of the output element is a type of connecting rod movement. This results in no pure translation in the drive tappet, but the movement also contains a small amount of movement in the transverse direction. This movement in The transverse direction can be accommodated in the spiral spring section.
  • the spiral spring section enables the required flexibility in the transverse direction.
  • the invention is also achieved by a guide bar arrangement which has at least one guide bar which has a guide bar drive, as has been described above.
  • the guide bar and the driven element are preferably connected to one another in a manner that transmits tensile and compressive force.
  • the output element therefore not only ensures that the guide bar is pushed in one direction in the offset direction.
  • the output element can also ensure that the guide bar is pulled in the opposite direction. This means that a return spring arrangement can be dispensed with.
  • a length adjustment device is preferably provided between the guide bar and the driven element. With such a length adjustment device, a zero or neutral position of the guide bar can be adapted to a zero or neutral position of the motor arrangement.
  • the length adjustment device is preferably arranged at one end of the drive ram which is adjacent to the guide bar.
  • the length adjustment device can here also be arranged directly on the guide bar so that it can remain on the guide bar when the drive plunger is dismantled.
  • the length adjustment device has an eccentric bushing. If the eccentric bushing is twisted, it can die Change the length of an operative connection between the output element and the bar.
  • the eccentric bushing can, for example, be held in a clamping manner, so that after setting a change is only possible if the clamping is released.
  • a plurality of guide bars are preferably provided, each guide bar having a guide bar drive and the axes of rotation of at least two guide bar drives having different orientations. As a result, an installation space can be optimally used.
  • a guide bar arrangement 1 has a plurality of guide bars 2 which are reciprocated in an offset direction, which is represented by a double arrow 3 should be moved.
  • Each guide bar 2 carries a number of thread guides 4, which can be designed, for example, as guide needles or as perforated needles.
  • Each guide bar is connected to a guide bar drive 6 via a drive plunger 5.
  • the drive ram 5 has a length adjustment device 7 with which the length of the drive ram 5 can be adjusted within certain limits to a distance between the guide bar 2 and the guide bar drive 6, each in the neutral position of these two elements.
  • the length adjustment device 7 is arranged in the region of the guide bar 2 and is preferably connected to the guide bar 2. Basically, the length adjustment device 7 only has to be suitable for engaging at any point in the connection between the guide bar drive 6 and the guide bar 2 in order to adjust the length as desired.
  • the length adjustment direction may also be divided into two or more sections, one section being used for coarse adjustment and one section being used for fine adjustment. Training with two options for length adjustment is provided in Fig. 4 explained below.
  • the drive ram 5 is connected to the guide bar 2 and to the guide bar drive 6 in such a way that it can transmit both tensile forces and compressive forces from the guide bar drive 6 to the guide bar 2.
  • the guide bar 2 is therefore not only pushed away from the guide bar drive 6, but it is also pulled again by the guide bar drive 6 for a movement in the opposite direction.
  • the guide bar drive 6 is in Figs. 2 and 3 shown in more detail.
  • the guide bar drive has a motor arrangement 8 which has an electric motor 9 and a controller 10.
  • the controller 10 converts, for example, control signals that come from a controller of the warp knitting machine in order to control a pattern-wise movement of the guide bar into drive commands for the electric motor 9.
  • the electric motor 9 can be designed, for example, as a stepper motor or as a brushless direct current motor.
  • the motor arrangement 8 is fastened to an end face of a bearing housing 11.
  • the motor arrangement has an output element 12 in the form of a shaft.
  • the shaft can be the rotor shafts of the motor 9, for example.
  • the angle of rotation through which the output element 12 can rotate is limited to a relatively small angular range.
  • This angular range is ⁇ 30 ° around a neutral position.
  • the movement limiting device provided for this is preferably part of the control device 10.
  • the output element 12 is mounted on the bearing housing 11, specifically in a bearing 14 which is arranged in an end face 15 of the bearing housing 11 facing away from the motor arrangement 8.
  • the output element 12 can protrude through the bearing 14.
  • the output element 12 On its side facing out of the bearing housing 11, the output element 12 has an eccentrically mounted pin 16 which engages in an eye 17 on the drive tappet 5. Between the pin 16 and the eye 17, a barrel bearing 18 is arranged, which within certain limits allows an inclination between the eye 17 and the pin 16, in other words can be used to compensate for misalignments.
  • the transmission mechanism formed by the pin 16 and the eye 17 converts the rotational movement of the output element 12 into a translational movement of the drive tappet 5. Due to the relatively small Angle of rotation of the output element 12, the drive tappet 5 maintains its orientation that it assumed in the neutral position. This alignment runs essentially parallel to the offset direction 3. A relatively small change in the angle of the drive plunger 5 cannot be avoided. However, this change in angle is so small that it practically does not negatively affect the movement of the guide bar 2 in the offset direction.
  • the guide bar arrangement 1 can also have several guide bars 2, each guide bar 2 being assigned its own guide bar drive 6.
  • the individual guide bars have 2 different orientations in space.
  • a guide bar drive 6 can have an axis of rotation that runs in the direction of gravity
  • a second guide bar drive 6 has an axis of rotation that runs at an angle of 45 ° to the direction of gravity
  • a third guide bar drive 6 can have an axis of rotation that runs perpendicular to the direction of gravity. This makes it possible to make relatively good use of the available installation space.
  • the individual guide bar drives 6 can also be arranged offset to one another in the offset direction.
  • Fig. 4 shows a modified embodiment of the drive tappet 5.
  • the drive tappet 5 here has a clamping bush 19 with two clamping areas 20, 21.
  • the clamping bush 19 is fastened to the drive plunger 5 with the clamping area 20, while it is fastened with the clamping area 21 on the eye 17, which has an extension 22 for this purpose.
  • the clamping sleeve 19 has an axially extending groove 23.
  • the extension 22 can have a corresponding feather key, so that the groove 23 with the feather key forms an anti-twist device with which it is ensured that the drive plunger 5 cannot turn around its longitudinal axis with respect to the eye 17.
  • the drive plunger 5 has, for example, a spiral spring section 24 at its end adjacent to the guide bar 2. Since the movement of the drive tappet 5 due to the "connecting rod drive" with the eye 17 is not a purely translational movement, but rather has a small component transverse to the longitudinal extension of the drive tappet 5, the spiral spring section 24 can be used to generate flexibility in the transverse direction. This resilience prevents the creation of greater forces.
  • the spiral spring section 24 can be formed in a simple manner in that the drive tappet 5 is flattened in this area.
  • Fig. 5 further shows an embodiment of a fine adjustment.
  • the guide bar 2 has at its end facing the drive plunger 5 a slot 25 into which the spiral spring section 24 enters.
  • the spiral spring section 24 has an opening 26 that is open on one side.
  • a pin 27, which is formed on an eccentric 28, enters the opening 26, which is rotatably mounted in a corresponding bore 29 of the guide bar 2.
  • a clamping screw 30 is provided to hold the angular alignment of the eccentric 28 after the adjustment has been made. The eccentric 28 can only be rotated after the clamping screw 30 has been loosened.
  • the guide bar also has a through hole 31.
  • the spiral spring section 24 has a corresponding bore 32, which, however, has a larger diameter. After the adjustment has been made, a clamping screw can then be guided through the through bores 31, 32 in order to additionally fix the spiral spring section 24 to the bar 2 by clamping.

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

Claims (12)

  1. Système de barres à passettes (6) d'un métier chaîne avec un système motorisé (8), qui comporte un élément d'entraînement entraîné en rotation (12), qui comporte un axe de rotation et qui agit conjointement avec un poussoir d'entraînement (5), sachant qu'une liaison fonctionnelle est disposée de façon excentrique par rapport à l'axe de rotation entre l'élément mené (12) et le poussoir d'entraînement (5) et la liaison fonctionnelle comporte un tourillon (16) disposé de façon excentrique sur l'élément d'entraînement, qui vient en prise dans un œillet (17) sur le poussoir d'entraînement, caractérisé en ce qu' un roulement sphérique à rouleaux (18) est disposé entre le tourillon (16) et l'œillet (17).
  2. Système de barres à passettes selon la revendication 1, caractérisé en ce que l'axe de rotation est orienté perpendiculairement à la direction de déplacement du poussoir d'entraînement (5).
  3. Système de barres à passettes selon la revendication 1 ou 2, caractérisé en ce que l'élément mené (12) comporte un dispositif de limitation de déplacement qui limite un mouvement de rotation de l'élément mené (12) sur une zone de déplacement de ± 30° par rapport à une position neutre.
  4. Système de barres à passettes selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'élément mené (12) est guidé par un boîtier de support (11) à une extrémité duquel est fixé le système motorisé (8) et à l'autre extrémité duquel est disposé un palier (14) pour l'élément mené (12).
  5. Système de barres à passettes selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le poussoir d'entraînement (5) comporte une sécurité anti-rotation (23).
  6. Système de barres à passettes selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le poussoir d'entraînement (5) comporte une section à ressort de flexion (24).
  7. Système de barres à passettes (1) avec au moins une barre à passettes (2), qui comporte un système de barres à passettes (6) selon l'une quelconque des revendications 1 à 6.
  8. Système de barres à passettes selon la revendication 7, caractérisé en ce que le système de barres à passettes (2) et l'élément mené (12) sont reliés l'un à l'autre d'une manière transmettant une force de traction et une force de pression.
  9. Système de barres à passettes selon la revendication 7 ou 8, caractérisé en ce qu'un système de réglage de longueur (7) est prévu entre la barre à passettes (2) et l'élément mené (12).
  10. Système de barres à passettes selon la revendication 9, caractérisé en ce que le système de réglage de longueur (7) est disposé à une extrémité du poussoir d'entraînement (5), qui est voisine de la barre à passettes (2).
  11. Système de barres à passettes selon la revendication 9, caractérisé en ce que le système de réglage de longueur (7) comporte une bague excentrée (28).
  12. Système de barres à passettes selon l'une quelconque des revendications 7 à 11, caractérisé en ce que plusieurs barres à passettes (2) sont prévues, sachant que chaque barre à passettes (2) comporte un système d'entraînement de barres à passettes (6) et les axes de rotation d'au moins deux systèmes d'entraînement de barres à passettes (6) comportent des orientations différentes.
EP17198189.7A 2017-10-25 2017-10-25 Système de barres à passettes d'un métier chaîne et dispositif de barres à passettes Active EP3476990B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17198189.7A EP3476990B1 (fr) 2017-10-25 2017-10-25 Système de barres à passettes d'un métier chaîne et dispositif de barres à passettes
CN201810072656.2A CN109706614B (zh) 2017-10-25 2018-01-25 经编机的导纱梳栉驱动装置和导纱梳栉组件
TW107137229A TWI744561B (zh) 2017-10-25 2018-10-22 經編機導桿驅動件及導桿總成
KR1020180127491A KR20190046676A (ko) 2017-10-25 2018-10-24 경편기의 가이드 바 구동장치 및 가이드 바 조립체

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17198189.7A EP3476990B1 (fr) 2017-10-25 2017-10-25 Système de barres à passettes d'un métier chaîne et dispositif de barres à passettes

Publications (2)

Publication Number Publication Date
EP3476990A1 EP3476990A1 (fr) 2019-05-01
EP3476990B1 true EP3476990B1 (fr) 2021-05-05

Family

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Family Applications (1)

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EP17198189.7A Active EP3476990B1 (fr) 2017-10-25 2017-10-25 Système de barres à passettes d'un métier chaîne et dispositif de barres à passettes

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Country Link
EP (1) EP3476990B1 (fr)
KR (1) KR20190046676A (fr)
CN (1) CN109706614B (fr)
TW (1) TWI744561B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3798340B1 (fr) * 2019-09-26 2021-08-18 KARL MAYER STOLL R&D GmbH Procédé d'insertion du fil après le changement d'ensouple dans un métier chaîne et métier chaîne doté d'une fonction d'insertion du fil après un changement d'ensouple
CN111560700B (zh) * 2020-05-25 2021-08-20 嘉兴博睿创业服务有限公司 经编机花梳导纱器
EP3708702B1 (fr) * 2020-06-26 2022-07-13 KARL MAYER STOLL R&D GmbH Métier à tricoter chaîne

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH644162A5 (de) * 1979-07-12 1984-07-13 Textilma Ag Maschine fuer die herstellung flaechenhafter textilien, mit einem um eine schwenkachse schwenkbaren fadenfuehrer oder fadenumlenkorgan und verfahren zum betrieb der maschine.
DE3117683C2 (de) * 1981-05-05 1984-12-06 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Vorrichtung zur Steuerung der Versatzbewegung einer Legeschiene
FR2664298B1 (fr) * 1990-07-03 1994-10-14 Fontanille Sa Procede et dispositif de fabrication de bandes de dentelle presentant une bonne rigidite transversale, et bandes de dentelle ainsi obtenues.
DE29516290U1 (de) * 1995-10-13 1997-02-06 Liba Maschinenfabrik Gmbh, 95119 Naila Multibar-Kettenwirkmaschine mit Servomotorantrieb für die Legebarren
EP1013812B1 (fr) * 1998-12-23 2002-07-24 Luigi Omodeo Zorini Dispositif d'entrainement pour le mouvement contrôlé de membres dans des métiers à tricoter
DE19963990C2 (de) * 1999-12-31 2003-12-11 Mayer Textilmaschf Kettenwirkmaschine mit Mustereinrichtung
DE10342843B4 (de) * 2003-09-17 2005-09-15 Karl Mayer Textilmaschinenfabrik Gmbh Verfahren zur Inbetriebnahme einer Kettenwirkmaschine
BE1016669A3 (nl) * 2005-07-05 2007-04-03 Wiele Michel Van De Nv Inrichting voor het aandrijven van een weefraam in een weefmachine, en een weefmachine voorzien van een of meerdere dergelijke inrichtingen.
CN202766762U (zh) * 2012-08-09 2013-03-06 常州市第八纺织机械有限公司 经编机针织物传送的纠偏装置
CN203113042U (zh) * 2013-02-20 2013-08-07 纪美惠 一种电子钩编机
EP2982788B1 (fr) * 2014-08-07 2016-06-08 Karl Mayer Textilmaschinenfabrik GmbH Métier rectiligne

Also Published As

Publication number Publication date
TWI744561B (zh) 2021-11-01
CN109706614B (zh) 2020-07-28
CN109706614A (zh) 2019-05-03
KR20190046676A (ko) 2019-05-07
TW201923187A (zh) 2019-06-16
EP3476990A1 (fr) 2019-05-01

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