EP3095904B1 - Agencement de barres à passettes d'un métier à tricoter à chaîne - Google Patents

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

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Publication number
EP3095904B1
EP3095904B1 EP15168573.2A EP15168573A EP3095904B1 EP 3095904 B1 EP3095904 B1 EP 3095904B1 EP 15168573 A EP15168573 A EP 15168573A EP 3095904 B1 EP3095904 B1 EP 3095904B1
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EP
European Patent Office
Prior art keywords
guide bar
drive
pattern
return
bar assembly
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
EP15168573.2A
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German (de)
English (en)
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EP3095904A1 (fr
Inventor
Rainer Kemper
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
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Karl Mayer Textilmaschinenfabrik GmbH
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Application filed by Karl Mayer Textilmaschinenfabrik GmbH filed Critical Karl Mayer Textilmaschinenfabrik GmbH
Priority to EP15168573.2A priority Critical patent/EP3095904B1/fr
Priority to CN201610032997.8A priority patent/CN106167955B/zh
Publication of EP3095904A1 publication Critical patent/EP3095904A1/fr
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Publication of EP3095904B1 publication Critical patent/EP3095904B1/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

Definitions

  • the present invention relates to a guide bar arrangement of a warp knitting machine, which has at least one guide bar, an offset drive acting on the guide bar in a single drive direction and a return arrangement acting counter to the drive direction, the return arrangement having a return drive.
  • Such a guide bar arrangement is made DE 399 487 C known.
  • a drive is arranged in each case, which has an eccentric, which acts via a double-armed lever on one end of the guide bar.
  • the eccentrics are driven by a common drive shaft via helical gears and worm wheels.
  • the warp threads are guided around knitting needles using guide needles, which are also referred to as punch needles, or other thread guides.
  • the guide needles are arranged on the guide bar.
  • the guide needles arranged on a guide bar must all be the same to be moved.
  • the movement of the guide bar in the direction of its longitudinal extension is effected by the so-called offset drive.
  • the offset drive can, for example, have a pattern disk or a pattern chain against which a pattern ram operatively connected to the guide bar rests.
  • the pattern plunger is held by the return assembly on the pattern disk or pattern chain.
  • the Drive device acts in this case only in a single direction on the guide bar, namely on pressure or shock.
  • the return assembly accordingly acts in the opposite direction.
  • the return assembly is usually provided with a spring system that applies the return force to the guide bar.
  • the spring system must be biased very high in order to maintain the adhesion between the guide bar, the pattern tappet and the pattern disc or the pattern chain.
  • These mass forces add up to the force of the spring system, so that the sample tappet is extremely high load.
  • these forces vary greatly, so there is a risk of elastic deformation of the elements involved and thus the positioning accuracy is impaired.
  • the guide bar During maintenance or set-up work, the guide bar must be moved from a working position to a maintenance position. For this purpose, the spring system must be separated from the guide bar. At a high bias of the spring system, this work requires a very high effort on the part of the operator.
  • An alternative solution is to use a pattern disk having a groove in which a roller of the pattern tappet is guided.
  • the groove has a shape that determines the path of the pattern tappet and thus the movement of the guide bar.
  • forces can be transmitted in both directions parallel to the longitudinal extent of the guide bar.
  • this solution has the disadvantage that the radial inner curve and the radial outer curve of the groove due to manufacturing tolerances are economically not so accurate to produce that over a revolution of the pattern disk uniform play and a uniform bias of the cam roller is adjustable to the sample disc.
  • a comparable arrangement is off CN 102 260 958 B known.
  • the rollers are attached to a common bracket.
  • the guide bar is driven in two directions.
  • DE 100 35 160 A1 shows a warp knitting machine with at least one bar, which is displaceable by a controllable motor in both directions. At the bar ends each engage a clamping element, wherein the clamping forces of the two clamping elements are opposite in size equal. In this way, the clamping forces are in balance and the engine can put the bar with relatively small forces, no matter in which direction.
  • EP 2 728 045 A1 shows a warp knitting machine with a pattern device that drives a guide bar.
  • the pattern device can be changed by a correction drive in the offset direction.
  • the guide bar can be loaded by springs in the direction of the pattern device.
  • the invention has for its object to make a high operating speed compatible with high accuracy.
  • the return drive now controls the movement of the guide bar in a direction that is directed opposite to the drive direction.
  • a transmission element for example, the above-mentioned plunger
  • the offset drive such as the sample disc or chain
  • the return movement is now controlled, so that over the movement stroke of the guide bar no changing spring forces or the like can arise.
  • the guide bar can be relatively uniformly loaded during its return movement, ie the movement against the drive direction, so that the risk of vibrations is kept small. Maintenance is simplified because the return assembly is much simpler.
  • the connecting element can be formed for example by a cable. This one is freer in the design of the return assembly.
  • the return drive acts on the guide bar via a spring.
  • the spring ensures that the guide bar, possibly via a connecting element, such as the above-mentioned sample ram, always in play-free engagement with the
  • the return drive is driven synchronously with the offset drive. This makes it possible to adjust the movement of the guide bar in the drive direction and the movement of the guide bar opposite to the drive direction very precisely.
  • the above-mentioned synchronous operation of return drive and offset drive can be achieved.
  • the return drive has a sensing element, which bears against the second peripheral surface, wherein the sensing element is connected to a deflection lever which is pivotable about a pivot point and the guide bar is connected at a position with the reversing lever, which is arranged on the side facing away from the scanning element of the pivot point.
  • the reversing lever is thus designed as a two-armed lever.
  • the scanning element engages at one end and the guide bar at the other end.
  • the movement of the deflection roller is inverted, so to speak.
  • the first peripheral surface and the second peripheral surface each have a plurality of reports and the scanning element is offset by at least one repeat relative to the pattern tappet.
  • a report contains all the information necessary to move the guide bar into a pattern section. If such a pattern section is not too long, then you can quite accommodate several repeats on the peripheral surfaces.
  • the offset of the points of application of the scanning element and the tappet makes it possible to decouple the spatial arrangement of the scanning element and the tappet.
  • the cam element and the pattern element are arranged on a common drive axle. If the cam element and the pattern element are each designed as a cam disk or pattern disk, then the drive axle can form a common axis of rotation. This is a very simple way to achieve the synchronous movement of the first peripheral surface and the second peripheral surface.
  • the curve element and the pattern element are identical. Accordingly, then the first peripheral surface and the second peripheral surface are identical. The scanning element and the sample ram are then located on the the same area, wherein they are expediently offset in the circumferential direction of the peripheral surface relative to each other.
  • the offset drive act solely on pressure on the guide bar and the return drive exclusively to train on the guide bar. This makes it possible to achieve a very precise control of the movement of the guide bar.
  • a guide bar arrangement according to Fig. 1 has a guide bar 2, which can also be referred to as a guide bar, on.
  • a guide bar 2 which can also be referred to as a guide bar, on.
  • more thread guide 3 are fixed, which are formed for example as a punch needles or guide needles.
  • the guide bar is driven back and forth in operation, as shown by a double arrow 4.
  • the double arrow 4 indicates a direction parallel to the longitudinal extension of the guide bar.
  • the guide bar 2 is also moved perpendicular to the plane in a stitch-forming process. However, this will not be explained further in the present case.
  • the guide bar assembly 1 has an offset drive.
  • the offset drive has a pattern element 5 in the form of a pattern disk with a first peripheral surface 6.
  • the pattern element 5 is rotated by a drive motor 7. Instead of a pattern disk you can also use a pattern chain.
  • a pattern tappet 8 abuts with a roller 9 on the first peripheral surface 6 of the pattern element 5.
  • the first peripheral surface 6 has circumferentially different distances to a rotation axis 10 of the pattern element 5. Accordingly, the pattern plunger 8 is pushed away from the rotation axis 10 when the peripheral surface has a greater distance from the axis of rotation 10.
  • the direction away from the axis of rotation 10 is also referred to below as the "drive direction".
  • the offset drive thus acts only in the drive direction on the guide bar 2, ie in a single direction.
  • a return assembly is provided in order to hold the roller 5 in abutment with the first peripheral surface 6.
  • the return assembly acts counter to the drive direction on the guide bar 2. Accordingly, the roller 9 is always held in contact with the first peripheral surface 6.
  • the roller 9 of the contour of the first peripheral surface 6 follow very accurately and without play, so that equally accurate control of the movement of the guide bar 2 in the direction of the double arrow 4 is possible, ie parallel to its longitudinal extent.
  • the return arrangement has a return drive, which has a cam element 11 in the present case.
  • the cam element 11 has a second peripheral surface 12.
  • the cam member 11 may, like the pattern member 5, be formed as a cam.
  • the cam element 11 is on the same axis of rotation 10 as the cam element 5 arranged and is driven by the same drive motor 7.
  • the cam member 11 rotates synchronously with the pattern member 5, and the first peripheral surface 6 and the second peripheral surface 12 rotate in synchronism with each other.
  • the reversing lever 14 is pivotable about a pivot point 15.
  • the reversing lever 14 has a first lever arm 16, which connects the pivot point 15 with the sensing element 13, and a second lever arm 17 which connects the pivot point 15 with a cable section 18.
  • the cable section 18 is connected via a spring 19 and a second cable section 20 with the guide bar 2.
  • the spring 19 is under a small bias, so that over the reversing lever 14, the sensing element 13 is permanently held in contact with the second peripheral surface 12.
  • the second peripheral surface 12 is designed so that the spring 19 is tensioned more when counteracting inertial forces from the displacement movement of the force of the spring 19 and the Force of the spring 19 is reduced when the mass forces in the same direction as the force of the spring 19 acts.
  • the force acting on the pattern tappet 8 between the pattern element 5 and the guide bar 2 can ideally be kept constant during normal operation. Alternating elastic deformations between the pattern element 5 and the guide bar 2 are avoided and the pitch accuracy can be maintained very precisely.
  • Fig. 2 shows a simplified embodiment in which the pattern element 5 and the cam element 11 are identical. Accordingly, the first peripheral surface 6 and the second peripheral surface 12 are identical.
  • the first peripheral surface 6 and the second peripheral surface 12, which are identical in the present case, are formed so that the movement of the sensing element 13 and the movement 9 are of opposite configuration. This can also be done by providing a plurality of reports on the first peripheral surface 6 and the second peripheral surface 12 and the position of the roller 9 and the scanning element 13 is offset by one or more reports or parts of the reports.
  • the embodiments according to the Fig. 1 and 2 require a rigid guide bar 2, so a guide bar that can be loaded with pressure or shock without deforming.

Landscapes

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

Claims (8)

  1. Aménagement de barres à passettes (1) d'un métier de tricotage à chaîne, qui présente au moins une barre à passettes (2, 21), une commande de déplacement (5-7) agissant sur la barre à passettes (2, 21) dans une direction de commande unique et un aménagement de rappel agissant à l'opposé de la direction de commande, dans lequel l'aménagement de rappel présente une commande de rappel (11-17), dans lequel la commande de rappel (11-17) agit sur la barre à passettes via un ressort (19), caractérisé en ce que le ressort est agencé dans un élément de liaison (18, 20) entre la barre à passettes (2) et la commande de rappel (11-17).
  2. Aménagement de barres à passettes selon la revendication 1, caractérisé en ce que la commande de rappel (11-17) est commandée en synchronisme avec la commande de déplacement (5-7).
  3. Aménagement de barres à passettes selon la revendication 2, caractérisé en ce que la commande de déplacement présente un élément modèle (5) avec une première surface périphérique (6), qui agit sur un coulisseau modèle (8), et la commande de rappel présente un élément de came (11) avec une seconde surface périphérique (12), dans lequel les surfaces périphériques (6, 12) tournent en synchronisme l'une avec l'autre.
  4. Aménagement de barres à passettes selon la revendication 3, caractérisé en ce que la commande de rappel (11-17) présente un élément palpeur (13), qui s'applique sur la seconde surface périphérique, dans lequel l'élément palpeur (13) est relié à un levier de renvoi (14) qui peut pivoter autour d'un point pivot (15) et la barre à passettes (2) est reliée dans une position au levier de renvoi (14), qui est agencé du côté du point pivot (15) opposé à l'élément palpeur (13).
  5. Aménagement de barres à passettes selon la revendication 4, caractérisé en ce que la première surface périphérique (6) et la seconde surface périphérique (12) présentent respectivement plusieurs rapports et l'élément palpeur (13) est déplacé par rapport au coulisseau modèle (8) d'au moins un rapport.
  6. Aménagement de barres à passettes selon l'une quelconque des revendications 3 à 5, caractérisé en ce que l'élément de came (11) et l'élément modèle (5) sont agencés sur un axe de rotation commun (10).
  7. Aménagement de barres à passettes selon l'une quelconque des revendications 3 à 6, caractérisé en ce que l'élément de came (11) et l'élément modèle (5) sont identiques.
  8. Aménagement de barres à passettes selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la commande de déplacement (5-7) agit exclusivement à la pression sur la barre à passettes (2) et la commande de rappel (11-17) agit exclusivement à la traction sur la barre à passettes.
EP15168573.2A 2015-05-21 2015-05-21 Agencement de barres à passettes d'un métier à tricoter à chaîne Active EP3095904B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15168573.2A EP3095904B1 (fr) 2015-05-21 2015-05-21 Agencement de barres à passettes d'un métier à tricoter à chaîne
CN201610032997.8A CN106167955B (zh) 2015-05-21 2016-01-19 经编机的梳栉装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15168573.2A EP3095904B1 (fr) 2015-05-21 2015-05-21 Agencement de barres à passettes d'un métier à tricoter à chaîne

Publications (2)

Publication Number Publication Date
EP3095904A1 EP3095904A1 (fr) 2016-11-23
EP3095904B1 true EP3095904B1 (fr) 2017-03-22

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EP15168573.2A Active EP3095904B1 (fr) 2015-05-21 2015-05-21 Agencement de barres à passettes d'un métier à tricoter à chaîne

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EP (1) EP3095904B1 (fr)
CN (1) CN106167955B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200126894A (ko) * 2019-04-30 2020-11-09 칼 마이어 알앤디 게엠베하 경편기
KR20200126895A (ko) * 2019-04-30 2020-11-09 칼 마이어 알앤디 게엠베하 경편기 및 경편기에 있어서 조작자를 돕기 위한 방법

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108374234A (zh) * 2018-04-13 2018-08-07 江苏理工学院 用于经编织物结构变压器绝缘材料的新型经编设备
CN110699845A (zh) * 2019-10-31 2020-01-17 福建省鑫港纺织机械有限公司 立式多出经编机的梳栉横移机构
CN117144555B (zh) * 2023-11-01 2024-02-27 福建省鑫港纺织机械有限公司 一种自适应纱线张力调节的经编机横移装置

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Publication number Priority date Publication date Assignee Title
DE399487C (de) * 1923-01-11 1924-08-04 Akt Ges Maschf Kettenwirkmaschine
DE4130030C3 (de) * 1991-09-10 1996-03-21 Mayer Textilmaschf Kettenwirkmaschine mit Legebarre
DE10035160B4 (de) * 2000-07-19 2004-06-03 Karl Mayer Textilmaschinenfabrik Gmbh Kettenwirkmaschine mit mindestens einer Barre
CN100537872C (zh) * 2007-06-11 2009-09-09 江南大学 一种直线伺服电机驱动的经编机梳栉横移装置
CN201313974Y (zh) * 2008-11-14 2009-09-23 常州市宏发纵横新材料科技有限公司 经编机梳栉横移机构
DE102009020032B4 (de) * 2009-05-05 2017-06-14 Karl Mayer Textilmaschinenfabrik Gmbh Kettenwirkmaschine
CN102260958B (zh) * 2011-07-28 2014-04-02 常州市润源经编机械有限公司 一种经编机梳栉横移的方法及采用该方法的横移机构
EP2728045B1 (fr) * 2012-11-06 2014-10-01 Karl Mayer Textilmaschinenfabrik GmbH Métier à tricoter à chaîne
CN203583144U (zh) * 2013-11-06 2014-05-07 浙江宏锋经纬编有限公司 一种经编机的电子横移机构
CN203890625U (zh) * 2014-02-21 2014-10-22 长兴德裕新材料有限公司 一种经编机梳栉回拉结构

Non-Patent Citations (1)

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Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200126894A (ko) * 2019-04-30 2020-11-09 칼 마이어 알앤디 게엠베하 경편기
KR20200126895A (ko) * 2019-04-30 2020-11-09 칼 마이어 알앤디 게엠베하 경편기 및 경편기에 있어서 조작자를 돕기 위한 방법
KR102372118B1 (ko) 2019-04-30 2022-03-07 칼 마이어 알앤디 게엠베하 경편기 및 경편기에 있어서 조작자를 돕기 위한 방법

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Publication number Publication date
EP3095904A1 (fr) 2016-11-23
CN106167955A (zh) 2016-11-30
CN106167955B (zh) 2018-05-08

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