EP0263488A2 - Dispositif pour le mouvement périodique des barres à passettes d'une machine à tricoter en chaîne - Google Patents

Dispositif pour le mouvement périodique des barres à passettes d'une machine à tricoter en chaîne Download PDF

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Publication number
EP0263488A2
EP0263488A2 EP87114582A EP87114582A EP0263488A2 EP 0263488 A2 EP0263488 A2 EP 0263488A2 EP 87114582 A EP87114582 A EP 87114582A EP 87114582 A EP87114582 A EP 87114582A EP 0263488 A2 EP0263488 A2 EP 0263488A2
Authority
EP
European Patent Office
Prior art keywords
buffer
laying
needles
bar
knitting machine
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.)
Ceased
Application number
EP87114582A
Other languages
German (de)
English (en)
Other versions
EP0263488A3 (fr
Inventor
Karl Roth
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.)
LIBA Maschinenfabrik GmbH
Original Assignee
LIBA Maschinenfabrik 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 LIBA Maschinenfabrik GmbH filed Critical LIBA Maschinenfabrik GmbH
Publication of EP0263488A2 publication Critical patent/EP0263488A2/fr
Publication of EP0263488A3 publication Critical patent/EP0263488A3/fr
Ceased legal-status Critical Current

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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 invention relates to a device for periodically displacing the laying rail of a warp knitting machine pivoted by a laying bar shaft and receiving the perforated needles between two end positions in which the displacement movement of the laying rail is reversed.
  • the shifting of the laying rail of a warp knitting machine is usually carried out by means of a so-called mirror disc or a pattern chain, which has cam-like projections and consequently, when it rotates over the projections and a roller scanning this, generates a displacement movement which is transmitted to the laying rail via a plunger.
  • a correspondingly designed device is shown, for example, in US Pat. No. 3,008,314. It must be ensured that the roll is in constant contact with the scanned surface the mirror disc remains, which is usually brought about by a counter spring, which acts on the bar so that it presses on the plunger in the direction of the mirror disc (see, for example, DE-PS 1 281 091).
  • the invention has for its object to increase the working speed of warp knitting machines with an offset movement of the laying rail, as indicated above. According to the invention, this is done in that a buffer is assigned to at least one outer end position, which acts as a resilient stop with a short buffer path in relation to the needle pitch before the perforated needles run against the knitting needles.
  • the buffer as a resilient stop, because of its short buffer path in relation to the needle pitch, ensures that the laying rail is prevented from an excessive displacement movement, thereby reliably preventing tarnishing of the perforated needles on the knitting needles. Because of the buffer arrangement, it is also possible to significantly reduce the force of the counter spring, since the buffer in question counteracts a dangerous lifting of the scanning roller from the surface of the mirror disk.
  • the suspension properties can be given to the stop in that it is supported against an adjustable preloaded coil spring. But it is also possible to design the stop itself from rubber-like material. In any case, the stop can yield with a short buffer path in relation to the needle pitch, whereby a hard start of the laying rail against the buffer in question is avoided.
  • the buffer is expediently attached to the guide bar shaft so that it is pivoted with it.
  • the buffer then executes the same pivoting movement as the part of the bar which cooperates with the buffer, so that there is no relative movement between these parts. This is favorable for constructive training.
  • FIG. 1 shows a basic illustration of the components of a warp knitting machine with the base frame 1, the pattern gear 2 and the two side walls 13 and 14 which are required in principle.
  • the two side walls 13 and 14 carry the bar bar shaft 10 and the needle bar shaft 15.
  • the sample gear 2 carries the sample disk 3 via an axis 16.
  • the striker 5 is connected via the ball joint 17 to the plunger 6, which acts directly on the bar 7 and moves it back and forth in a known manner as a function of the protrusions of the pattern disk 3 according to the double arrow shown.
  • the tension spring 8 exerts a tensile force acting on the bar 7 in the direction of the pattern disk 3.
  • the tension spring 8 thus plays the role of the abovementioned counter spring and ensures that the scanning roller 4 is pressed against the sample disk 3.
  • the laying bar shaft 10 exerts a reciprocating rotary movement in a known manner, which is converted into a reciprocating oscillating movement via the arms 19 fastened on the laying bar shaft 10 and the bearing pieces 20 fastened to them.
  • the bearing pieces 20 take the bar holder 21 with them, and in a known manner by means of the guide bolts indicated by dashes it is ensured that the bar can be moved back and forth in its longitudinal direction, in each of the possible pivot positions.
  • the levers 23 are fastened, which transmit a twisting movement starting from the needle bar shaft 15 back and forth to the needle bar 24 and thus move the knitting needles 12 accordingly.
  • the knitting needles 12 are opposed by the perforated needles 11 which are taken up by the laying bar 7.
  • the two buffers 25 and 26 are provided, between which the boom attached to the laying bar 7 moves according to the rotation of the pattern disk 3. and moved here.
  • the two buffers 25 and 26 are attached to the laying bar shaft 10, specifically the buffer 25 via the arm 27 and the buffer 26 via the bearing piece 28 and the arm 29.
  • the bearing piece 28 like the bearing pieces 20 with guide bolts 22, permits a displacement of the Boom 9 in the longitudinal direction of the bar 7, without changing anything in the pivot angle of the bearing piece 28 and the boom 9 that is assumed.
  • the scanning roller 4 is moved back and forth corresponding to the projections, with the laying bar 7 being carried along accordingly.
  • the range of motion of the laying bar 7 is determined per se by the height of the protrusions of the pattern disk 3, but here is additionally determined by the buffer 25 and 26 ensured that the movement of the laying bar 7 cannot be moved beyond the displacement paths determined by the buffers.
  • the relevant perforated needle performs a movement along line 30, which reverses in its outer end positions 32 and 33 with respect to the offset movement.
  • the desired and correct offset is designated by V in FIG. 2.
  • a dashed line is also drawn in each case in the region of the end positions 32 and 33, by which a too wide displacement movement of the perforated needle in question is indicated. In this movement path drawn in dashed lines, the perforated needle in question comes into contact with the knitting needles 31, which is certainly prevented by the buffers 25 and 26 mentioned in connection with FIG.
  • FIG. 3 shows the boom 9, which is moved back and forth between the buffers 25 and 26 according to the offset movement of the bar 7.
  • the Buffer 25 is used here as a resilient stop because it is supported against the helical spring 34 which bears against the bottom of the bore 35 on its side facing away from the buffer 25.
  • the bore 35 extends into the arm 27; it continues to the side of the arm 27 facing away from the buffer 25 and thus forms a through hole.
  • the buffer 25 forms the head of the bolt 36, which is fixed in relation to the arm 27 by means of the two lock nuts 37.
  • the relative position of the buffer 25 to the Srm 27 can be set by means of the two lock nuts 37, the helical spring 34 always being prestressed.
  • the buffer 26 is constructed differently from the buffer 25.
  • the buffer 26 here consists of a rubber block, which is embedded in a corresponding blind hole in arm 28.
  • the prestress inherent in the buffers 25 and 26 is so great that after the cantilever 9 strikes one of the buffers, it can yield only a little, that is to say one such short buffer path allows the needles to not start on the knitting needles. Since the buffers 25 and 26 exert such a limiting effect on the offset movement of the laying bar, the tension spring 8 according to FIG. 1 does not have to exert a particularly great tensile force on the laying bar 7.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP19870114582 1986-10-06 1987-10-06 Dispositif pour le mouvement périodique des barres à passettes d'une machine à tricoter en chaíne Ceased EP0263488A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3634021A DE3634021C1 (de) 1986-10-06 1986-10-06 Vorrichtung zum periodischen Versetzen der Legeschiene einer Kettenwirkmaschine
DE3634021 1986-10-06

Publications (2)

Publication Number Publication Date
EP0263488A2 true EP0263488A2 (fr) 1988-04-13
EP0263488A3 EP0263488A3 (fr) 1990-09-12

Family

ID=6311167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870114582 Ceased EP0263488A3 (fr) 1986-10-06 1987-10-06 Dispositif pour le mouvement périodique des barres à passettes d'une machine à tricoter en chaíne

Country Status (4)

Country Link
US (1) US4776185A (fr)
EP (1) EP0263488A3 (fr)
JP (1) JPS6399361A (fr)
DE (1) DE3634021C1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4127344A1 (de) * 1991-08-19 1993-02-25 Mayer Textilmaschf Kettenwirkmaschine mit mindestens einer legebarre
DE4130030C3 (de) * 1991-09-10 1996-03-21 Mayer Textilmaschf Kettenwirkmaschine mit Legebarre
DE102004031268A1 (de) * 2004-06-29 2006-02-02 Karl Mayer Textilmaschinenfabrik Gmbh Legebarrenantrieb in einer Wirkmaschine
DE102006026979B4 (de) * 2006-06-10 2008-07-31 Karl Mayer Textilmaschinenfabrik Gmbh Kettenwirkmaschine
ES2360368A1 (es) * 2006-06-10 2011-06-03 Karl Mayer Textilmaschinenfabrik Gmbh Máquina de producción de géneros de punto por urdimbre.
EP2623653A1 (fr) * 2012-02-04 2013-08-07 Karl Mayer Textilmaschinenfabrik GmbH Agencement de barres de stockage d'un métier à tricoter à chaîne
CN105200652B (zh) * 2015-10-27 2017-04-05 江苏润源控股集团有限公司 一种用于经编机梳栉横移组件的摆动机构
CN106012274B (zh) * 2016-08-05 2017-05-31 卡尔迈耶（中国）有限公司 经编机用气弹簧装置
CN113914011A (zh) * 2021-10-08 2022-01-11 常州市涵涵纺织机械有限公司 一种经编机上的梳栉横移机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE635860C (de) * 1933-11-15 1936-10-01 William Hug Antriebsvorrichtung fuer die Fadenfuehrerschienen von flachen Kulierwirkmaschinen
US2782617A (en) * 1955-08-17 1957-02-26 Kidde Mfg Co Inc Slider box assembly for warp knitting machines
US4086792A (en) * 1977-08-03 1978-05-02 Joan Manufacturing Corporation Weft inlay racking control
DE3439426A1 (de) * 1984-01-20 1985-07-25 Veb Kombinat Textima, Ddr 9010 Karl-Marx-Stadt Legeschienenversatzvorrichtung fuer schnellaufende kettenwirk-, insbesondere naehwirkmaschinen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008314A (en) * 1957-08-10 1961-11-14 Karl Mayer Erste Hessische Wir Raschel knitting machine
DE1857100U (de) * 1959-05-16 1962-08-23 Karl Liebrandt Lagerungsvorrichtung der lochnadelbarren von wirkmaschinen.
US3247686A (en) * 1963-05-28 1966-04-26 Raymond F Lanthier Guide bars for warp knitting machine
US4092838A (en) * 1977-07-22 1978-06-06 Joan Manufacturing Corporation Yarn guide tubes for warp knitting machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE635860C (de) * 1933-11-15 1936-10-01 William Hug Antriebsvorrichtung fuer die Fadenfuehrerschienen von flachen Kulierwirkmaschinen
US2782617A (en) * 1955-08-17 1957-02-26 Kidde Mfg Co Inc Slider box assembly for warp knitting machines
US4086792A (en) * 1977-08-03 1978-05-02 Joan Manufacturing Corporation Weft inlay racking control
DE3439426A1 (de) * 1984-01-20 1985-07-25 Veb Kombinat Textima, Ddr 9010 Karl-Marx-Stadt Legeschienenversatzvorrichtung fuer schnellaufende kettenwirk-, insbesondere naehwirkmaschinen

Also Published As

Publication number Publication date
US4776185A (en) 1988-10-11
EP0263488A3 (fr) 1990-09-12
DE3634021C1 (de) 1988-01-21
JPS6399361A (ja) 1988-04-30

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