EP1592829A1 - Metiers a tricoter - Google Patents

Metiers a tricoter

Info

Publication number
EP1592829A1
EP1592829A1 EP03795899A EP03795899A EP1592829A1 EP 1592829 A1 EP1592829 A1 EP 1592829A1 EP 03795899 A EP03795899 A EP 03795899A EP 03795899 A EP03795899 A EP 03795899A EP 1592829 A1 EP1592829 A1 EP 1592829A1
Authority
EP
European Patent Office
Prior art keywords
knitting machine
laying
distance
needles
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.)
Granted
Application number
EP03795899A
Other languages
German (de)
English (en)
Other versions
EP1592829B1 (fr
Inventor
Markus Ott
Michaela Lorenz
Rolf Sandmann
Hans Groh
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
Publication of EP1592829A1 publication Critical patent/EP1592829A1/fr
Application granted granted Critical
Publication of EP1592829B1 publication Critical patent/EP1592829B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D04B23/00—Flat warp knitting machines
    • D04B23/02—Flat warp knitting machines with two sets of needles

Definitions

  • the invention relates to a knitting machine, in particular a warp knitting machine, with two knitting needle contours and two pole bars, the laying needles of which can be moved through both knitting needle contours, each pollen bar being mounted on a hanger shaft via a laying lever.
  • Such a knitting machine is known from DE-PS 1 284 023.
  • two suspension shafts with split boom levers form a suspension.
  • the hanger shafts are arranged horizontally next to each other over the knitting needle contours. This has the advantage that the knitting needles can begin the downward movement relatively early, even if not all the needles of the Pollegefoarren have swung through the knitting needle lanes.
  • Both hanger shafts are driven in the same direction and the laying levers describe the same circular arc, but offset laterally to each other.
  • the pathways of movement of the layered linen overlap in the middle of the knitting needle contours. From this It turns out that in certain positions the laying needles of one part of the sling take a position vertically higher than that of the other part of the sling and vice versa.
  • Such a knitting machine works up to certain pile heights, i.e. the distance between the knitting needle contours, satisfactory. Problems arise when the pile height is to be increased. In this case, situations can arise where the laying needles of the two pollen bars can interfere with each other in the lateral underlay offset.
  • the invention is based on the object of specifying a knitting machine with which large pile heights can be achieved.
  • the two hanger shafts are still arranged above the knitting needle contours. However, they are no longer horizontally next to each other, ie parallel to a connecting plane between the two knitting needle fonts, but one above the other.
  • the hanger shafts do not have to lie exactly in a vertical plane. A small lateral offset is quite permissible.
  • the axes of the suspension shafts therefore lie in a plane that is perpendicular or almost perpendicular to the first-mentioned plane between the knitting needle contours.
  • the thread guide holes of the laying needles can be held by the two pollen bars on almost congruent circular arc sections. Extreme thread angles with large distances of the comb bar and different laying needle heights of the different ones Pollen bars at the time of the underlay can therefore be avoided or reduced to such an extent that they no longer cause problems.
  • Each pollen bar preferably has its own drive control.
  • the laying needles of one pollen bar can thus be moved largely independently of the laying needles of the other pollen bar. This is another measure to prevent mutual interference between the laying needles. A hindrance in the opposite lateral backing misalignment can thus be reliably excluded.
  • the vertical distance of the axes of the hanger shafts advantageously corresponds to a maximum of 25% of the distance of the laying needle tips from the axis of the upper hanger shaft.
  • This dimensioning can ensure that the movement paths of the laying needles of one pollen bar and the laying needles of the other pollen bar agree so far that both laying needle groups move practically in the same way.
  • the radius of movement of the laying needles, which are suspended from the upper hanger shaft is somewhat larger and thus the path of movement is somewhat flatter than the movement path of the laying needles, which are suspended from the lower hanging shaft.
  • the distance between the two axes is relatively small in relation to the distance between the axes and the laying needles, this difference does not play a major role.
  • the suspension shafts are preferably arranged in the center above the knitting needle contours and at a distance at which the movement of the laying needles is approximately straight.
  • the laying needles In the case of a straight-line movement, the laying needles have a vertical Chen underlay offset about the same position. This prevents mutual hindrance by coordinating the speeds of the laying needles.
  • the distance between the laying needle tips and the axis of the upper hanger shaft is at least 5 times greater than an inner distance between the knitting needle contours.
  • the inner distance between the knitting needle contours corresponds to the later pile height. It is often defined by the distance between the milling plates. If this distance corresponds to a maximum of one sixth of the distance between the laying needle tips and the axis of the upper hanger shaft, then the movement of the laying needles can be regarded as sufficiently linear.
  • the drive control of the leading pollen bar preferably accelerates this pollen bar compared to the lagging pollen bar.
  • the leading pollen bar thus reaches the corresponding position for the underlay earlier and then has a sufficient period of time to carry out the lateral underlay offset without being hindered by the laying needles of the other pollen bar.
  • Each suspension shaft preferably has a motor drive.
  • a motorized drive can be easily controlled so that the laying needles of the respective pollen bar can be accelerated or decelerated in the desired manner. This acceleration and deceleration can then take place independently of the acceleration and deceleration of the laying needles on the other pollen bar.
  • each hanger shaft is connected to a mechanical gear.
  • Such a mechanical transmission for example a cam mechanism, can also generate different speed profiles for both hanger shafts.
  • an electro-mechanical gear can also be used.
  • Fig. 1 is a schematic representation of a warp knitting machine
  • FIG. 2 shows a schematic representation of an active process.
  • Fig. 1 shows a warp knitting machine 1 is a schematic representation of a first Wirknadelfontur 2 and a second Wirknadelfontur 3.
  • Drives 8, 9 for the knitting needles 4, 5 and 10, 11 for the comb bar 6, 7 are only shown schematically.
  • Such a warp knitting machine can be used to produce a knitted fabric in which spacer threads 14 (also referred to as filler threads) are knitted between a front fabric base 12 and a rear fabric base 13. The knitted fabric is pulled off in the direction of an arrow 15.
  • spacer threads 14 also referred to as filler threads
  • the front fabric base 12 is generated with the aid of front base bars 16, 17.
  • the rear goods base 13 is with the help of rear base bars 18, 19th generated.
  • a plurality of laying needles designed as perforated needles 20 are arranged on the basic laying bars, the threads 21 for the front laying bars 16, 17 and . 22 for the rear basic bars 18, 19 to perform.
  • the front base bars 16, 17 can be indicated on a common lever 23 and the rear base bars 18, 19 can be indicated on a common lay lever 24. However, this is not mandatory.
  • the front fabric base 12 and the rear fabric base 13 are knitted in a manner known per se. There is therefore no further explanation.
  • the spacer threads 14 are fed with the help of two pollen bars 25, 26.
  • Laying needles 11 are arranged at the lower end of the front pole assembly 25 and laying needles 28 are arranged at the lower end of the rear pole assembly 26.
  • the laying needles 27, 28 serve to guide or lay the spacer threads 14. They are usually designed as "perforated needles".
  • the front pole bar 25 is fastened to a front laying lever 29 which is arranged on a first hanger shaft 30.
  • a front laying lever 29 which is arranged on a first hanger shaft 30.
  • the rear pollen bar 26 is attached to a rear laying lever 31 which is attached to a second hanger shaft 32.
  • a second hanger shaft 32 rotates, the rear laying lever 31 and thus the rear pole bar 26 with the laying needles 28 are pivoted.
  • the two hanger shafts 30, 32 are now arranged vertically one above the other, ie their axes 33, 34 lie in a vertical plane 35 which is arranged centrally between the two knitting needle contours 2, 3.
  • the laying needles 27 attached to the front pole bar 25 are guided along a movement path 36 by a pivoting movement of the front laying lever 29.
  • the two trajectories 36, 37 correspond to circular lines. As can be seen from FIG. 1, the two circular lines practically coincide in a region vertically above the distance X between the two knitting needle shapes 2, 3. This can be achieved in that the distance between the two axes 33, 34 of the two hanger shafts 30, 32 is small in relation to the distance between the axis 34 of the one and thus upper hanger shaft 32 and the tips of the laying needles 27, 28.
  • the distance between the two axes 33, 34 should be a maximum of 25% of the distance from the axis 34 of the upper hanger shaft 32 to the tips of the laying needles 27, 28.
  • the movement paths 36, 37 of the laying needles 27, 28 take place at least approximately linearly at least in the area above the knitting needle contours 2, 3 and are perpendicular to the plane 35. This can be achieved by making the distance between the axes 33, 34 and the movement paths 36, 37, ie the tips of the laying needles 26, 27, relatively large in relation to the distance X. The distance should be at least 5 times this distance X.
  • the first hanger shaft 30 is connected to a drive 38.
  • the second hanger shaft 32 is connected to a drive 39.
  • the drives 38, 39 can be electrical drives or other motor drives. However, it is also possible to design the drives 38, 39 as a gear, for example as a cam gear, which is driven by the main shaft (not shown in detail) of the warp knitting machine 1.
  • the purpose of the drives 38, 39 is to drive the laying needles 27, 28 of the two pole bars 25, 26 independently of one another. Of course, there must be some correlation in the movement of these laying needles 27, 28. However, the laying needles 27, 28 are driven in such a way that the laying needles 27, 28 are each accelerated or decelerated differently. The laying needles leading in the direction of movement are accelerated compared to the trailing laying needles.
  • Fig. 2a the spacer threads 14 are guided with the two pollen bars 25, 26 in consideration of the first knitting needle tour 2.
  • the knitting needles 4 of the first knitting needle tour 2 have been moved out for this purpose.
  • FIG. 2b shows the start of the swinging movement of the pollen bars 25, 26.
  • the movement of the laying needles 27, 28 takes place here - based on the illustration in FIG. 2 - from right to left, that is to say from the front knitting needle tour 2 in the direction of the rear knitting needle tour 3.
  • the increased distance between the two pole bars 25, 26 compared to FIG. 2a shows that the rear pole bar 26 accelerates and the front pole bar 25 swings through with a delay.
  • Fig. 2d the backing shift has ended.
  • the second knitting needle tour 3 is considered.
  • the knitting needles 5 of the second knitting needle tour 3 are then extended for this purpose.
  • the entire knitting process “is repeated alternately on the two knitting needle tours 2, 3.

Landscapes

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

Abstract

L'invention concerne un métier à tricoter, en particulier un métier à tricoter chaîne (1), comprenant deux fontures d'aiguilles à tricoter (2, 3) et deux barres à passettes de guidage du poil (25, 26) dont les aiguilles (27, 28) peuvent être déplacées à travers les deux fontures d'aiguilles à tricoter (2, 3). En outre, chacune desdites barres à passettes (25, 26) est montée sur un arbre de suspension (30, 32) par l'intermédiaire d'un levier de guidage (29, 31). L'objectif de cette invention est d'augmenter la hauteur du poil des articles tricotés au moyen dudit métier à tricoter. A cet effet, les deux arbres de suspension (30, 32) sont superposés.
EP03795899A 2003-02-13 2003-12-16 Metiers a tricoter Expired - Lifetime EP1592829B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10305919 2003-02-13
DE10305919A DE10305919B4 (de) 2003-02-13 2003-02-13 Wirkmaschinen
PCT/EP2003/014300 WO2004072345A1 (fr) 2003-02-13 2003-12-16 Metiers a tricoter

Publications (2)

Publication Number Publication Date
EP1592829A1 true EP1592829A1 (fr) 2005-11-09
EP1592829B1 EP1592829B1 (fr) 2007-04-25

Family

ID=32797372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03795899A Expired - Lifetime EP1592829B1 (fr) 2003-02-13 2003-12-16 Metiers a tricoter

Country Status (7)

Country Link
EP (1) EP1592829B1 (fr)
KR (1) KR100713659B1 (fr)
CN (1) CN100467692C (fr)
AU (1) AU2003298188A1 (fr)
DE (2) DE10305919B4 (fr)
ES (1) ES2281693T3 (fr)
WO (1) WO2004072345A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005016079A1 (de) * 2005-04-08 2006-10-12 Karl Mayer Textile Machinery Ltd., Hutang Doppelnadelbarrige Kettenwirkmaschine
DE102006007509B4 (de) 2006-02-16 2009-01-22 Contitech Antriebssysteme Gmbh Keilrippenriemen mit verbessertem Geräuschverhalten
ITBS20060066A1 (it) * 2006-03-23 2007-09-24 Santoni & C Spa Dispositivo di comando di oscillazione di barre porta passette per macchine tessili lineari
CN101967730B (zh) * 2010-10-26 2012-08-29 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
US11530501B1 (en) * 2017-10-02 2022-12-20 Apple Inc. Tubular warp knit spacer fabric

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208030B (de) * 1961-03-25 1965-12-30 Jean Guesken Maschinenfabriki Antriebseinrichtung mit Dreischlagexzentern zur Erzeugung der Schwingbewegung der Legeschienen an zweifonturigen Schneidpluesch-Raschelmaschinen
DE1284023B (de) * 1966-04-10 1968-11-28 Mayer Textilmaschf Kettenwirkmaschine mit zwei Wirknadelfonturen
US3646782A (en) * 1969-11-01 1972-03-07 Karl Kohl Warp knitting machine for pile fabrics
DE2002700A1 (de) * 1970-01-22 1971-11-18 Guesken Fa J Einrichtung bei Kettenwirkmaschinen,insbesondere Raschelmaschinen,zur Ausfuehrung von Blindlegungen und/oder zur Einarbeitung dicker Garne in feinmaschige Grundgewirke
DD136987B1 (de) * 1978-06-08 1980-08-06 Wirkmaschinenbau Karl Marx Veb Verfahren und vorrichtung zur herstellung jacquardgemusterter polgewirke
KR200290131Y1 (ko) * 2002-07-03 2002-09-28 주식회사 대림텍스 더블 랏셀 편직기

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004072345A1 *

Also Published As

Publication number Publication date
WO2004072345A1 (fr) 2004-08-26
CN1748052A (zh) 2006-03-15
KR20050103927A (ko) 2005-11-01
AU2003298188A1 (en) 2004-09-06
DE50307154D1 (de) 2007-06-06
EP1592829B1 (fr) 2007-04-25
ES2281693T3 (es) 2007-10-01
KR100713659B1 (ko) 2007-05-02
DE10305919A1 (de) 2004-09-02
CN100467692C (zh) 2009-03-11
DE10305919B4 (de) 2005-06-09

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