EP0407766B1 - Dispositif pour l'entraînement commandé selectivement de jeteurs dans machines à tricoter rectilignes - Google Patents

Dispositif pour l'entraînement commandé selectivement de jeteurs dans machines à tricoter rectilignes Download PDF

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Publication number
EP0407766B1
EP0407766B1 EP90111484A EP90111484A EP0407766B1 EP 0407766 B1 EP0407766 B1 EP 0407766B1 EP 90111484 A EP90111484 A EP 90111484A EP 90111484 A EP90111484 A EP 90111484A EP 0407766 B1 EP0407766 B1 EP 0407766B1
Authority
EP
European Patent Office
Prior art keywords
frame element
fact
magnet
electro
accordance
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.)
Expired - Lifetime
Application number
EP90111484A
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German (de)
English (en)
Other versions
EP0407766A1 (fr
Inventor
Franz Dipl.-Ing. Schmid (Fh)
Jürgen Dipl.-Ing. Ploppa
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.)
H Stoll GmbH and Co KG
Original Assignee
H Stoll GmbH and Co KG
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Filing date
Publication date
Application filed by H Stoll GmbH and Co KG filed Critical H Stoll GmbH and Co KG
Publication of EP0407766A1 publication Critical patent/EP0407766A1/fr
Application granted granted Critical
Publication of EP0407766B1 publication Critical patent/EP0407766B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/94—Driving-gear not otherwise provided for
    • D04B15/96—Driving-gear not otherwise provided for in flat-bed knitting machines
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/56—Thread guides for flat-bed knitting machines

Definitions

  • the present invention relates to a device for the selectively controllable entrainment of thread guides on flat knitting machines according to the preamble of claim 1.
  • the electromagnet is connected to the entraining finger via a lever mechanism.
  • the driving finger is acted upon by a parallel tension spring and with a protruding one Provide latch, which engages in a one-armed lever, which is biased by a further tension spring by the electromagnet to unlock the driving finger.
  • a two-armed lever is provided, one end of which is acted upon by a spring-loaded armature rod of the electromagnet and the other end of which is coupled to the driving finger for its up and down movement.
  • a disadvantage of both known devices is that the transmission of motion from the electromagnet to the driving finger is relatively slow due to the lever-like transmission elements. This is predetermined on the one hand by the masses to be moved and on the other hand by the large number of elements that transmit the movement.
  • Another disadvantage is the asymmetrical arrangement of the electromagnet to the driving finger, which results in an uneven distribution of forces on the driving finger, which is dependent on the direction of movement of the driving fingers and the maximum force that is to be exerted by the electromagnet. This results in a control or actuation time of the driving finger which is dependent on the current operating state, which is unsatisfactory.
  • the entrainment finger arrangement consisting of two parallel entrainment fingers is attached to one end of an armature rod of the electromagnet, but is axially arranged by the axial arrangement of the anchor rod and entrainment arrangement intermediate guide section necessary for the axial movement of the driving finger arrangement, which increases the overall height of this device.
  • DE 36 06 821 A1 in which the electromagnet and driving finger are arranged parallel to one another, which has the disadvantages mentioned above.
  • the object of the present invention is to provide a device for the selectively controllable entrainment of thread guides on flat knitting machines of the type mentioned at the outset, in which the transmission of motion from the electromagnet on the entraining finger is faster and independent of the direction of movement of the carriage unit with a substantially unchanged overall height.
  • the symmetrical arrangement of the frame element on the electromagnet and the associated central arrangement of the driving finger ensures that the forces acting on the driving finger are always evenly distributed over the guides of the frame element, so that the frame element and thus the driving element in each direction of movement of the slide unit is movable in the same way or with the same effort. Since transmission elements, such as levers or the like, are omitted, the movement transmission from the electromagnet to the frame element and thus to the driving finger can take place more quickly, especially since the frame element can be made from materials which are lighter than metal, ie essentially entirely from, for example, plastic. This allows the magnetic forces to be reduced.
  • each thread guide or a plurality of thread guides arranged on a thread guide rail is or are controlled by a structurally uniform, complete component made of an electromagnet with housing, guide plates and frame element, including a driving finger. This means that these complete components can also be replaced or replaced independently of one another if necessary.
  • the driving finger can, for example, be fastened to a frame element as a metallic component.
  • the features specified in claim 5 are expediently provided to simplify production.
  • the device 10 shown in the drawing is used for selectively controllable entrainment of thread guides which are each attached to a thread guide box 11 in a manner not shown here.
  • One or more of such thread guide boxes 11, shown only schematically here, can be moved back and forth along the lateral guide path 13 or 14 of a guide rail 12.
  • a flat knitting machine is usually provided with a plurality of guide rails 12 which are arranged parallel to one another and arranged along the needle bed arrangement.
  • the thread guide box 11 is selectively driven or switched off in a controlled manner by a selection device 15, which is connected in a non-illustrated manner to the carriage unit of a flat knitting machine, also not shown, while the carriage unit of the flat knitting machine is running.
  • the thread guide box 11 has on its outside a vertical slot 18 for inserting and fastening an arm of a thread guide, not shown.
  • the top and bottom of the thread guide box 11 is provided with guide rails 19, 21 which positively overlap the guideway 13.
  • On the upper guide bar 12 run-on lugs 22 and 23 are formed in the direction of the longitudinal extension of the guide rail, each of which is provided with a run-up slope 24.
  • An incision 26 is provided between the two cams 22 and 23, via which the respective thread guide box 11 can be taken along in one or the other direction by the selection device 15.
  • the selection device 11 has an arm 28, which is connected at one end to the carriage unit in a manner fixed against movement in a manner not shown and which extends in a cantilever or bridge-like manner above and across the plurality of parallel guide rails 12. At a constant distance, the arm is provided with fastening bores 29, to which components 31 for selectively controllable driving of the thread guide box 11 or its thread guide, not shown, are fastened. Such a control component 31 is arranged above each guide track 13, 14 of the guide rails 12.
  • the component 31 has an electromagnet, not shown in detail, which is surrounded by a cuboid housing 32 is. Of this electromagnet, only the armature rod 33 is visible in the drawing, which can emerge from the top 34 of the magnet housing 32.
  • the electromagnet is, for example, bipolar, the armature rod 33 being held in its upwardly extended position by a permanent magnet.
  • Guide plates 38 and 39 are attached to both narrow longitudinal sides 36, 37 of the magnet housing 32. The two guide plates protrude both the upper side 34 and the lower side 41 of the magnet housing 32 and are provided with a longitudinally extending guide groove 42 in the center.
  • a yoke in the form of a frame element 43 is movably guided up and down.
  • the respective longitudinal side 36, 37 of the magnet housing 32 also serves as a guide surface.
  • the frame element 43 which consists, for example, of plastic, surrounds the magnet housing 32. It thus has in one piece two parallel longitudinal legs 46, 47 and two mutually parallel cross legs 48 and 49, which run across the top 34 and bottom 41 of the magnet housing 32.
  • the frame element 43 is shown in detail in FIG. 3.
  • a driving finger 51 is arranged in the center of the lower cross leg 49, which can either be in one piece with the frame element 43 or, as shown in the drawing, is held and fastened, for example, as a metallic element and in a corresponding groove in the lower cross leg 49.
  • the frame element 43 has an inside width in the transverse direction, which is approximately equal to the width of the magnet housing 32, but in the longitudinal extent an inner width that is greater than the length dimension of the magnet housing 32 corresponds.
  • a compression spring 52 which is received at one end in a blind hole 53 in the lower cross arm 49 and at the other end in a blind hole receptacle 54 of the underside 41 of the magnet housing or the electromagnet itself.
  • stop projections 56, 57 which are provided laterally on the inside of the upper transverse leg 48 of the frame element 42 and protrude on the upper side 34 of the magnet housing 32.
  • the frame element 43 as shown on the component 31 'in Figure 1, can be held in its upper disengaged position by the armature rod 33 of the magnet.
  • This position moved upwards by a stroke H is provided by stop projections 58 and 59, which are provided laterally on the inside of the lower cross leg 49 and protrude from the underside 41 of the magnet housing 32.
  • an adjusting screw unit 61 is also provided, which is provided with a threaded bush 65 fixedly inserted in the upper cross leg 48 and through which the free distance between its inner actuating end 62 and the actuating end 63 of the anchor rod 33 in the driving position of the frame leg 43 can be adjusted. It is thus achieved that the anchor rod 33, when it disengages under magnetic action, first performs a free stroke before it moves the frame element 43 upwards into its disengaged position. If the magnetic field is eliminated, the anchor rod 33 falls down due to its own weight and is followed by the frame element 43, this process being supported by the compression spring 52.
  • a movement of the frame element 43 from its driving position into its disengaging position can also take place in such a way that the driving finger 51 is moved into the disengaging position when one of the run-up lugs 22, 23 is passed over and then can no longer fall back after the incision 26 has been reached, because the anchor rod 33 has meanwhile been magnetically moved into its disengaged position.
  • the frame element 43 is designed7 in such a way that its longitudinal and transverse legs 46 to 49 are flexible in the u-range and the frame element 43 can be moved up and down in the guide plates 38, 39 easily and in a shock-absorbing manner even under load.
  • the longitudinal legs 46, 47 have recesses 66 and 67, 68 on their outer surface as well as on both narrow end faces over a substantial part of their length shallow depth, the one recess 66 being offset in height from the two recesses 67 and 68.
  • the outer width of the frame element and dimensions of the upper and lower region of the longitudinal legs 46, 47 are such that the frame leg 43 are guided in the grooves 42 of the guide plates 38, 39 with a ratchet.
  • the upper and lower transverse legs 48, 49 have cross-sectional weakenings in the form of lateral grooves 71 or lateral through openings 72. This enables the frame element 43 to be guided smoothly even when it overcomes a frictional force between the driving finger 51 and the wall area of the incision 26 the thread guide box 11 is pushed up by the anchor rod 33, guaranteed. In addition, impact vibrations that would arise due to the upward movement limitation are essentially damped or absorbed.
  • the components 31 and 31 ' are formed in a compact manner, so that they are lined up in a space-saving manner on the arm 28 place. They also contain both the electromagnet and the frame element 43 including its guide and the driving finger 51 for taking a thread guide box 11 in a compact manner.

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

Claims (10)

  1. Dispositif (10) destiné à assurer l'entraînement, susceptible d'être commandé de manière sélective, de jeteurs sur des métiers à tricoter rectilignes, comportant de préférence plusieurs électroaimants liés en déplacement à une unité à chariot, et à chacun desquels est associé en pouvant être commandé, un entraineur dont le doigt d'entraînement (51) peut être amené en prise avec au moins une cassette de jeteur (11) associée d'un jeteur, ou hors de prise de celle-ci, cette cassette de jeteur pouvant se déplacer le long de glissières de jeteurs (12), parallèlement à une unité de planche à aiguilles, caractérisé en ce que l'électroaimant est entouré d'un élément de cadre (43) en forme de culasse, de l'une des extrémités duquel fait saillie, de manière centrée, le doigt d'entraînement (51), dans la direction de déplacement de la tige d'armature (33) de l'électroaimant, et dont l'extrémité opposée peut être sollicitée par la tige d'armature (33) de l'électroaimant, et en ce que l'élément de cadre (43) est maintenu sur ses deux branches latérales (46, 47), en étant guidé de manière mobile en direction longitudinale.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'électroaimant est disposé, en y étant enfermé, dans un boîtier (32) de forme parallélépipédique, en ce que sur deux côtés longitudinaux opposés du boîtier, sont fixées des plaques de guidage (38, 39), et en ce que l'élément de cadre (43) est guidé entre les plaques de guidage (38, 39) et le boîtier (32).
  3. Dispositif selon la revendication 2, caractérisé en ce que l'électroaimant, y compris le boîtier (32), les plaques de guidage (38, 39) et l'élément de cadre (43), formant ainsi un module complet (31), peut être fixé sur une poutrelle transversale (28) reliée de manière fixe à l'unité à chariot, en y étant regroupé en rangée avec d'autres modules (31') de même type.
  4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que la plaque de guidage (38, 39) est pourvue d'une rainure de guidage axiale (42) ouverte en direction du boîtier (32).
  5. Dispositif selon l'une au moins des revendications précédentes, caractérisé en ce que le doigt d'entraînement (51) est formé d'un seul tenant sur l'élément de cadre (43), et en ce que l'élément de cadre (43) est réalisé en matière plastique.
  6. Dispositif selon l'une au moins des revendications précédentes, caractérisé en ce que l'élément de cadre (43) en forme de culasse, présente des traverses (48, 49) supérieure et/ou inférieure, comportant sur leur côté intérieur, deux protubérances de butée (56 à 59) axiales, disposées à distance l'une de l'autre et susceptibles de venir en appui sur le boîtier d'aimant (32).
  7. Dispositif selon la revendication 6, caractérisé en ce qu'un ressort de compression (52) axial et central, est prévu entre le boîtier d'électroaimant (32) et la traverse inférieure (41).
  8. Dispositif selon l'une au moins des revendications précédentes 6 ou 7, caractérisé en ce que la traverse supérieure (48) est munie d'une vis de réglage axiale (61), opposée à la tige d'armature (33) de l'électroaimant.
  9. Dispositif selon l'une au moins des revendications précédentes, caractérisé en ce que les deux branches longitudinales (46, 47) de l'élément de cadre (43) sont pourvues, sur un ou plusieurs côtés extérieurs, et sur une partie essentielle de leur longueur, d'une réduction de section droite, réalisée par un creux en forme de rainure (66 - 68).
  10. Dispositif selon l'une au moins des revendications précédentes 6 à 8, caractérisé en ce que la traverse (48, 49) supérieure et/ou inférieure est ou sont pourvues de chacun des deux côtés, d'une réduction de section droite se présentant sous la forme d'un évidement (71, 72).
EP90111484A 1989-07-08 1990-06-19 Dispositif pour l'entraînement commandé selectivement de jeteurs dans machines à tricoter rectilignes Expired - Lifetime EP0407766B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3922513 1989-07-08
DE3922513A DE3922513C2 (de) 1989-07-08 1989-07-08 Einrichtung zur selektiv ansteuerbaren Mitnahme von Fadenführern an Flachstrickmaschinen

Publications (2)

Publication Number Publication Date
EP0407766A1 EP0407766A1 (fr) 1991-01-16
EP0407766B1 true EP0407766B1 (fr) 1994-03-30

Family

ID=6384577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111484A Expired - Lifetime EP0407766B1 (fr) 1989-07-08 1990-06-19 Dispositif pour l'entraînement commandé selectivement de jeteurs dans machines à tricoter rectilignes

Country Status (5)

Country Link
US (1) US5109681A (fr)
EP (1) EP0407766B1 (fr)
JP (1) JP2879700B2 (fr)
DE (1) DE3922513C2 (fr)
ES (1) ES2054153T3 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2807848B2 (ja) * 1991-07-11 1998-10-08 株式会社島精機製作所 横編機におけるヤーンフィーダの駆動装置
JPH05339853A (ja) * 1992-06-08 1993-12-21 Mitsuboshi Seisakusho:Kk 横編機における給糸変換装置
DE4400845C2 (de) * 1994-01-13 1996-08-22 Schieber Universal Maschf Vorrichtung zum steuerbaren Mitnehmen von Fadenführern an Flachstrickmaschinen
JPH08127948A (ja) * 1994-10-31 1996-05-21 Shima Seiki Mfg Ltd 編機のキャリアの制御方法とその装置
JP3347079B2 (ja) * 1998-12-16 2002-11-20 株式会社島精機製作所 横編機の端糸挿入装置
WO2002079556A1 (fr) * 2001-03-29 2002-10-10 Shima Seiki Mfg., Ltd. Dispositif d'alimentation en fil pour metier a tricoter rectiligne
US6895785B2 (en) * 2001-03-30 2005-05-24 Shima Seiki Manufacturing Limited Yarn carrier of weft knitting device
JP4025723B2 (ja) * 2001-07-24 2007-12-26 株式会社島精機製作所 横編機の給糸装置及び横編機の給糸方法
JP4163085B2 (ja) * 2003-10-10 2008-10-08 株式会社島精機製作所 移動体連行状態切換え可能な横編機
JP4016012B2 (ja) * 2003-10-10 2007-12-05 株式会社島精機製作所 横編機用摺動抵抗付加装置
EP1715092B1 (fr) * 2005-04-21 2012-08-29 H. Stoll GmbH & Co. KG Guide-fil pour métier à tricoter rectiligne
EP1788131B1 (fr) 2005-11-16 2016-05-04 H. Stoll AG & Co. KG Machine à tricoter rectiligne avec un dispositif d'entraînement d'un elément fonctionnel
CN102102270A (zh) * 2011-03-22 2011-06-22 张家港市中飞针织设备有限公司 全电脑横编织机的切换装置
CN102995271A (zh) * 2012-08-24 2013-03-27 东阳市创亿针织机械有限公司 电脑横机电磁铁
CN102978817A (zh) * 2012-08-24 2013-03-20 东阳市创亿针织机械有限公司 电脑横机电磁铁改进结构
CN102978816A (zh) * 2012-08-24 2013-03-20 东阳市创亿针织机械有限公司 一种电脑横机电磁铁
CN103422247B (zh) * 2013-08-28 2015-02-11 温州市金丕针织机械制造有限公司 一种用于嵌花电脑横机的换色控制总成

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1269109A (en) * 1969-11-29 1972-04-06 Wildt Mellor Bromley Ltd Improved electro-magnetic means for selective control of yarn feed changes in flat knitting machines
JPS5685449A (en) * 1979-12-10 1981-07-11 Shima Idea Center Yarn guide lever moving control apparatus in traverse knitting machine
DD227465A1 (de) * 1984-10-15 1985-09-18 Textima Veb K Fadenfuehrersteuervorrichtung fuer strickmaschinen
DE3606821A1 (de) * 1985-08-19 1987-02-26 Stoll & Co H Einrichtung zur einstellung des verstellweges der fadenfuehrer einer flachstrickmaschine
DE3716931C1 (de) * 1986-07-01 1988-01-28 Stoll & Co H Fadenfuehrerschlitten
IT214396Z2 (it) * 1988-03-01 1990-05-03 Emm Srl Dispositivo elettromeccanico per il trascinamento delle slitte, supportanti altrettanti guidafilo, di una macchina automatica rettilinea per maglieria

Also Published As

Publication number Publication date
US5109681A (en) 1992-05-05
DE3922513A1 (de) 1991-01-17
DE3922513C2 (de) 1998-09-17
JPH0345757A (ja) 1991-02-27
JP2879700B2 (ja) 1999-04-05
ES2054153T3 (es) 1994-08-01
EP0407766A1 (fr) 1991-01-16

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