EP0315230B1 - Brake device on a thread guide carrier of a flat bed knitting machine - Google Patents

Brake device on a thread guide carrier of a flat bed knitting machine Download PDF

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Publication number
EP0315230B1
EP0315230B1 EP88202167A EP88202167A EP0315230B1 EP 0315230 B1 EP0315230 B1 EP 0315230B1 EP 88202167 A EP88202167 A EP 88202167A EP 88202167 A EP88202167 A EP 88202167A EP 0315230 B1 EP0315230 B1 EP 0315230B1
Authority
EP
European Patent Office
Prior art keywords
thread guide
slide rail
guide box
braking device
fitted
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
EP88202167A
Other languages
German (de)
French (fr)
Other versions
EP0315230A1 (en
Inventor
Reinhold C/O Universal Maschinenfabrik Schimko
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.)
Henkel Dorus GmbH and Co KG
Original Assignee
Dr Rudolf Schieber GmbH and Co KG
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 Dr Rudolf Schieber GmbH and Co KG filed Critical Dr Rudolf Schieber GmbH and Co KG
Publication of EP0315230A1 publication Critical patent/EP0315230A1/en
Application granted granted Critical
Publication of EP0315230B1 publication Critical patent/EP0315230B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • D04B15/56—Thread guides for flat-bed knitting machines

Definitions

  • the invention relates to a braking device on the thread guide box of a flat knitting machine, which is slidably arranged on a slide rail extending along the needle beds and can be carried along by a lock bolt attached to the lock slide in both directions of slide travel by the lock slide along the slide rail.
  • a thread which is to be processed on a flat knitting machine is supplied in a known manner from a spool to the working needles of the flat knitting machine via a thread guide nut .
  • the thread guide nut is attached to the thread guide box, which sits on the slide rail and is carried by the driving pin in both directions of the slide.
  • the known, complete thread guide boxes with thread guide nuts are always controlled after the knitting lock, the size of the traversing path being determined by the knitting lock.
  • a 23 known braking device on the thread guide box in the form of spring loaded brake wedges, which, depending on the design, can be influenced with respect to their braking force or not. Should the braking force is always constant, so that, for example, compression springs are not adjustably mounted on the brake wedges.
  • the brake wedges are placed on the running surface of the slide rail by means of screws up to approximately 0.1 mm. Compression springs are provided in the spaces between the screws and the brake wedges, which press the brake wedges against the running surface of the slide rail and thereby produce the desired slide braking.
  • the sliding braking force which cannot be influenced in this case, is subject to the tolerances of the compression springs, which can usually vary up to 30%. If the sliding brake force can be influenced by readjustment, there is a risk that it will be improperly adjusted by a non-specialist and consequential damage will be inevitable.
  • the invention has for its object to provide a braking device of the type described above, which avoids the disadvantages of known braking devices and ensures a uniform and constant sliding brake effect on the thread guide box.
  • At least one permanent magnet is attached to the thread guide box in the region of the slide rail, which permanent magnet has a fixed air gap to the magnetically conductive slide rail.
  • the sliding brake force can hereby be clearly defined by the designer and cannot be changed during operation by appropriate design of the permanent magnet and air gap and remains constant and constant during operation.
  • Two permanent magnets are advantageously provided adjacent to the end faces of the thread guide box and aligned with the central longitudinal axis of the slide rail. This results in a particularly uniform sliding brake force that is always constant during operation.
  • the slide rail expediently has a dovetail-shaped cross section, while the thread guide box has simple longitudinal guide grooves with a trapezoidal cross section which are adapted to the cross section of the slide rail. This leads to a particularly simple construction, easy to manufacture and low-maintenance and evenly braked guidance of the thread guide box.
  • Adjustable guide wedges are advantageously provided in the area of at least one side wall of the longitudinal guide grooves on the thread guide box, expediently two guide wedges adjacent to the end faces of the thread guide box.
  • the thread guide box 1 shown schematically in the drawing is slidably arranged on a slide rail 2 extending along the needle beds (not shown) of a flat knitting machine. It has a longitudinal recess 3 on its upper side.
  • a driver bolt 4 attached to the lock carriage, not shown, is in engagement with one of the side walls of the longitudinal recess 3, so that the thread guide box 1 with attached thread guide nut, not shown, can be carried along in one of the two directions of carriage travel by the lock carriage along the slide rail 2.
  • two permanent magnets 6 are attached, each have a fixed air gap 7 to the magnetically conductive slide rail.
  • the slide rail 2 has a dovetail cross section and two running surfaces 8.
  • Simple longitudinal guide grooves 9 are provided on the thread guide box 1 in the area of the end faces 5 thereof and the permanent magnets 6, which have a trapezoidal cross section adapted to the cross section of the slide rail 2.
  • a guide wedge 10 with associated bearing is provided in the region of a side wall of the longitudinal guide groove 9, which can be adjusted by means of a screw 11 against the corresponding running surface 8 of the slide rail 2.
  • the permanent magnets 6 transmit their magnetic force from the thread guide box 1 to the magnetically conductive slide rail 2 and thus allow this force to act as a uniform and constant sliding brake force.

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

Description

Die Erfindung bezieht sich auf eine Bremseinrichtung am Fadenführerkasten einer Flachstrickmaschine, der auf einer sich längs der Nadelbetten erstreckenden Gleitschiene gleitend angeordnet ist und von einem am Schloßschlitten angebrachten Mitnehmerbolzen jeweils in beiden Schlittenlaufrichtungen vom Schloßschlitten entlang der Gleitschiene geführt mitnehmbar ist.The invention relates to a braking device on the thread guide box of a flat knitting machine, which is slidably arranged on a slide rail extending along the needle beds and can be carried along by a lock bolt attached to the lock slide in both directions of slide travel by the lock slide along the slide rail.

Wie aus DE-A-267777, DE-C-719964 oder DE-A-2459693 bekannt ist, wird ein Faden, der auf einer Flachstrickmaschine verarbeitet werden soll, in bekannter Weise von einer Spule kommend über ein Fadenführernüßchen den arbeitenden Nadeln der Flachstrickmaschine zugefuührt. Das Fadenführernüßchen ist an dem Fadenführerkasten befestigt, der auf der Gleitschiene sitzt und vom Mitnahmebolzen in beiden Schlittenlaufrichtungen mitgenommen wird.As is known from DE-A-267777, DE-C-719964 or DE-A-2459693, a thread which is to be processed on a flat knitting machine is supplied in a known manner from a spool to the working needles of the flat knitting machine via a thread guide nut . The thread guide nut is attached to the thread guide box, which sits on the slide rail and is carried by the driving pin in both directions of the slide.

Die bekannten, vollständigen Fadenführerkästen mit Fadenführernüßchen sind dem Strickschloß immer nachlaufend gesteuert, wobei die Größe des Changierweges vom Strickshloß bestimmt wird. Damit nun der Fadenführerkasten immer gleichmäßig läuft, wird er mit einer durch die Druckschriften Melliand Textilberichte Nr. 6/1955, S. 634 bis S. 643 und Wirkerei- und Strickerei-Technic, Coburg, Dez. 1956, S. 20 bis S. 23 bekannten Bremseinrichtung am Fadenführerkasten in Form von ferderbelasteten Bremskeilen, die je nach Ausführung bezüglich ihrer Bremskraft beeinflußbar sind oder nicht, gebremst. Soll die Bremskraft unbeeinflußbar immer konstant sein, so werden beispielsweise Druckfedern nicht nachstellbar an den Bremskeilen montiert.The known, complete thread guide boxes with thread guide nuts are always controlled after the knitting lock, the size of the traversing path being determined by the knitting lock. To ensure that the thread guide box always runs smoothly, it is used with a 23 known braking device on the thread guide box in the form of spring loaded brake wedges, which, depending on the design, can be influenced with respect to their braking force or not. Should the braking force is always constant, so that, for example, compression springs are not adjustably mounted on the brake wedges.

Die Bremskeile werden mittels Schrauben bis auf etwa 0,1 mm an die Lauffläche der Gleitschiene angestellt. In Zwischenräumen zwischen den Schrauben und den Bremskeilen sind Druckfedern vorgesehen, die die Bremskeile an die Lauffläche der Gleitschiene drücken und dadurch die gewünschte Gleitbremsung erzeugen.The brake wedges are placed on the running surface of the slide rail by means of screws up to approximately 0.1 mm. Compression springs are provided in the spaces between the screws and the brake wedges, which press the brake wedges against the running surface of the slide rail and thereby produce the desired slide braking.

Die Gleitbremskraft, die in diesem Fall nicht beeinflußt werden kann, unterliegt jedoch den Toleranzen der Druckfedern, die in der Regel bis zu 30% variieren können. Wenn die Gleitbremskraft durch Nachjustieren beeinflußt werden kann, so besteht die Gefahr, daß sie durch einen Nichtfachmann unsachgemäß eingestellt wird und damit Folgeschäden unvermeidlich sind.However, the sliding braking force, which cannot be influenced in this case, is subject to the tolerances of the compression springs, which can usually vary up to 30%. If the sliding brake force can be influenced by readjustment, there is a risk that it will be improperly adjusted by a non-specialist and consequential damage will be inevitable.

Der Erfindung liegt die Aufgabe zugrunde, eine Bremseinrichtung der eingangs beschriebenen Art zu schaffen, welche die Nachteile bekannter Bremseinrichtungen vermeidet und eine gleichmäßige und gleichbleibende Gleitbremswirkung auf den Fadenführerkasten sicherstellt.The invention has for its object to provide a braking device of the type described above, which avoids the disadvantages of known braking devices and ensures a uniform and constant sliding brake effect on the thread guide box.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß am Fadenführerkasten im Bereich der Gleitschiene wenigstens ein Permanentmagnet angebracht ist, der einen festgelegten Luftspalt zur magnetisch leitenden Gleitschiene aufweist.This object is achieved in that at least one permanent magnet is attached to the thread guide box in the region of the slide rail, which permanent magnet has a fixed air gap to the magnetically conductive slide rail.

Die Gleitbremskraft läßt sich hiermit vom Konstrukteur eindeutig und im Betrieb unveränderbar durch entprechende Auslegung des Permanentmagneten und Luftspaltes festlegen und bleibt im Betrieb gleichmäßig und konstant.The sliding brake force can hereby be clearly defined by the designer and cannot be changed during operation by appropriate design of the permanent magnet and air gap and remains constant and constant during operation.

Vorteilhaft sind benachbart den Stirnseiten des Fadenführerkastens und ausgerichtet zur Mittellängsachse der Gleitschiene zwei Permanentmagnete vorgesehen. Hiermit ergibt sich eine besonders gleichmäßige, im Betrieb immer gleichbleibende Gleitbremskraft.Two permanent magnets are advantageously provided adjacent to the end faces of the thread guide box and aligned with the central longitudinal axis of the slide rail. This results in a particularly uniform sliding brake force that is always constant during operation.

Zweckmäßig weist die Gleitschiene einen schwalbenschwanzförmigen Querschnitt auf, während der Fadenführerkasten einfache, dem Querschnitt der Gleitschiene angepaßte Führungslängsnuten mit trapezförmigem Querschnitt aufweist. Dies führt zu einer besonders einfach aufgebauten, einfach herzustellenden und wartungsarmen sowie gleichmäßig gebremsten Führung des Fadenführerkastens.The slide rail expediently has a dovetail-shaped cross section, while the thread guide box has simple longitudinal guide grooves with a trapezoidal cross section which are adapted to the cross section of the slide rail. This leads to a particularly simple construction, easy to manufacture and low-maintenance and evenly braked guidance of the thread guide box.

Vorteilhaft sind im Bereich wenigstens einer Seitenwand der Führungslängsnuten am Fadenführerkasten einstellbare Führungskeile vorgesehen, zweckmäßig zwei Führungskeile benachbart den Stirnseiten des Fadenführerkastens. Hiermit läßt sich die Führung des Fadenführerkastens feinfühlig einstellen, mit entsprechender Wirkung auf die Grundeinstellung der vorgesehenen Gleitbremskraft zwischen Fadenführerkasten und Gleitschiene.Adjustable guide wedges are advantageously provided in the area of at least one side wall of the longitudinal guide grooves on the thread guide box, expediently two guide wedges adjacent to the end faces of the thread guide box. With this, the guidance of the thread guide box can be adjusted sensitively, with a corresponding effect on the basic setting of the intended sliding braking force between the thread guide box and the slide rail.

Die Erfindung ist im folgenden an einem Ausführungsbeispiel und anhand der Zeichnung näher erläutert. In der Zeichnung zeigen

Fig. 1
eine Seitenansicht, teilweise im Schnitt, einer bevorzugten Ausführungsform des erfindungsgemäßen Fadenführerkastens mit Bremseinrichtung, und
Fig. 2
eine Stirnansicht des Fadenführerkastens in Fig. 2, teilweise im Schnitt, mit zugehöriger Gleitschiene.

The invention is explained below using an exemplary embodiment and with reference to the drawing. Show in the drawing
Fig. 1
a side view, partially in section, of a preferred embodiment of the thread guide box according to the invention with braking device, and
Fig. 2
an end view of the thread guide box in Fig. 2, partly in section, with associated slide rail.

Der in der Zeichnung schematisch dargestellte Fadenführerkasten 1 ist gleitend verschiebbar auf einer sich längs der nicht dargestellten Nadelbetten einer Flachstrickmaschine erstreckenden Gleitschiene 2 angeordnet. Er weist auf seiner Oberseite eine Längsausnehmung 3 auf. Ein am nicht dargestellten Schloßschlitten angebrachter Mitnehmerbolzen 4 steht jeweils in Eingriff mit einer der Seitenwände der Längsausnehmung 3, wodurch der Fadenführerkasten 1 mit daran befestigtem, nicht dargestellten Fadenführernüßchen in jeweils eine der beiden Schlittenlaufrichtungen vom Schloßschlitten entlang der Gleitschiene 2 geführt mitnehmbar ist.The thread guide box 1 shown schematically in the drawing is slidably arranged on a slide rail 2 extending along the needle beds (not shown) of a flat knitting machine. It has a longitudinal recess 3 on its upper side. A driver bolt 4 attached to the lock carriage, not shown, is in engagement with one of the side walls of the longitudinal recess 3, so that the thread guide box 1 with attached thread guide nut, not shown, can be carried along in one of the two directions of carriage travel by the lock carriage along the slide rail 2.

Im Bereich der Gleitschiene 2 und benachbart den Stirnseiten 5 des Fadenführerkastens 1 sowie ausgerichtet zur Mittellängsachse der Gleitschiene 2 sind zwei Permanentmagnete 6 angebracht, die jeweils einen festgelegten Luftspalt 7 zur magnetisch leitenden Gleitschiene aufweisen.In the area of the slide rail 2 and adjacent to the end faces 5 of the thread guide box 1 and aligned with the central longitudinal axis of the slide rail 2, two permanent magnets 6 are attached, each have a fixed air gap 7 to the magnetically conductive slide rail.

Die Gleitschiene 2 weist einen schwalbenschwanzförmigen Querschnitt sowie zwei Laufflächen 8 auf. Am Fadenführerkasten 1 sind im Bereich dessen Stirnseiten 5 und der Permanentmagnete 6 einfache Führungslängsnuten 9 vorgesehen, die einen dem Querschnitt der Gleitschiene 2 angepaßten trapezförmigen Querschnitt aufweisen.The slide rail 2 has a dovetail cross section and two running surfaces 8. Simple longitudinal guide grooves 9 are provided on the thread guide box 1 in the area of the end faces 5 thereof and the permanent magnets 6, which have a trapezoidal cross section adapted to the cross section of the slide rail 2.

Für den Fall, daß nicht lediglich einstückige Führungslängsnuten 9 ausgebildet werden, ist jeweils im Bereich einer Seitenwand der Führungslängsnut 9 ein Führungskeil 10 mit zugehöriger Lagerung vorgesehen, der mittels einer Schraube 11 gegen die entsprechende Lauffläche 8 der Gleitschiene 2 anstellbar ist. Selbst dieser erweiterte Aufbau der Führungs- und Bremseinrichtug bedeutet noch eine klare Vereinfachung gegenüber bekannten Bremseinrichtungen mit Druckfedern und Bremskeilen.In the event that not only one-piece longitudinal guide grooves 9 are formed, a guide wedge 10 with associated bearing is provided in the region of a side wall of the longitudinal guide groove 9, which can be adjusted by means of a screw 11 against the corresponding running surface 8 of the slide rail 2. Even this expanded structure of the guide and brake device means a clear simplification compared to known brake devices with compression springs and brake wedges.

Die Permanentmagnete 6 übertragen ihre magnetische Kraft vom Fadenführerkasten 1 auf die magnetisch leitende Gleitschiene 2 und lassen damit diese Kraft als gleichmäßige und gleichbleibende Gleitbremskraft wirken.The permanent magnets 6 transmit their magnetic force from the thread guide box 1 to the magnetically conductive slide rail 2 and thus allow this force to act as a uniform and constant sliding brake force.

Claims (5)

1. Braking device on the thread guide box (1) of a flat bed knitting machine which is mounted on a slide rail (2) extending along the needle beds and which can be driven along the slide rail (2) in either direction of travel of the carriage of the bolt carriage in each case by a carrier bolt (4) fitted to the bolt carriage,
characterised in that at least the permanent magnet (6) is fitted onto the thread guide box (1) near the guide rail (2), which has a fixed air gap (7) relative to the magnetically conducting slide rail (2).
2. Braking device as in claim 1, characterised in that two permanent magnets (6) are fitted close to the front faces (5) of the thread guide box (1) with the longitudinal central axis of the slide rail (2).
3. Braking device as in claims 1 or 2, characterised in that the slide rail (2) has a dovetail shaped cross-section and the thread guide box (1) has longitudinal guide slots (9) with trapezoidal shaped cross-section matching the cross-section of the slide rail (2).
4. Braking device as in claim 3, characterised in that the adjustable guide wedges (10) are fitted near at least one of the side walls of the longitudinal guide slots (9), the thread guide box (1).
5. Braking device as in claim 4, characterised in that two guide wedges (10) are fitted adjacent to the front faces of the thread guide box (1).
EP88202167A 1987-09-30 1988-09-15 Brake device on a thread guide carrier of a flat bed knitting machine Expired - Lifetime EP0315230B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3733121A DE3733121C1 (en) 1987-09-30 1987-09-30 Braking device on the thread guide box of a flat knitting machine
DE3733121 1987-09-30

Publications (2)

Publication Number Publication Date
EP0315230A1 EP0315230A1 (en) 1989-05-10
EP0315230B1 true EP0315230B1 (en) 1991-11-13

Family

ID=6337340

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88908206A Pending EP0378569A1 (en) 1987-09-30 1988-09-15 Braking device for thread guide boxes for flat-bed knitting machines
EP88202167A Expired - Lifetime EP0315230B1 (en) 1987-09-30 1988-09-15 Brake device on a thread guide carrier of a flat bed knitting machine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP88908206A Pending EP0378569A1 (en) 1987-09-30 1988-09-15 Braking device for thread guide boxes for flat-bed knitting machines

Country Status (6)

Country Link
US (1) US5020341A (en)
EP (2) EP0378569A1 (en)
JP (1) JP2858768B2 (en)
DE (2) DE3733121C1 (en)
ES (1) ES2026999T3 (en)
WO (1) WO1989002946A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107059232A (en) * 2017-04-25 2017-08-18 东莞市联洲知识产权运营管理有限公司 A kind of anti-skidding thread guide device
CN107059233A (en) * 2017-04-25 2017-08-18 东莞市联洲知识产权运营管理有限公司 A kind of stable thread guide device of power transmission

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2903152B2 (en) * 1997-04-15 1999-06-07 株式会社島精機製作所 Yarn supply mechanism of flat knitting machine
CN100529220C (en) * 2003-10-10 2009-08-19 株式会社岛精机制作所 Sliding resistance adding device for weft knitting machine
JP4016012B2 (en) * 2003-10-10 2007-12-05 株式会社島精機製作所 Sliding resistance addition device for flat knitting machines
US8317317B2 (en) * 2009-08-13 2012-11-27 Eric Charles Pulvino Folding eyeglasses

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE267777C (en)
FR599930A (en) * 1925-06-03 1926-01-25 Device for knitting machines for making striped knits in eight colors
FR780320A (en) * 1934-09-01 1935-04-23 Knitting Machine Improvements
DE719964C (en) 1939-11-03 1942-04-20 Seyfert & Donner Thread guide box for flat knitting machines
IT1001091B (en) * 1973-12-18 1976-04-20 Sdf Simonini Primo E Secondo DEVICE APPLIED TO THE THREAD GUIDE OF THE RIA STRAIGHT MESH MACHINE TO AVOID FAULTS IN THE FABBRI INLAY KNITTING CAUTION
DE3716931C1 (en) * 1986-07-01 1988-01-28 Stoll & Co H Thread guide carriage
DE3641182C1 (en) * 1986-12-03 1988-02-04 Schieber Universal Maschf Thread-guide device on flat knitting machines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107059232A (en) * 2017-04-25 2017-08-18 东莞市联洲知识产权运营管理有限公司 A kind of anti-skidding thread guide device
CN107059233A (en) * 2017-04-25 2017-08-18 东莞市联洲知识产权运营管理有限公司 A kind of stable thread guide device of power transmission
CN107059232B (en) * 2017-04-25 2018-11-16 唐山市建业达纺纱有限公司 A kind of anti-skidding thread guide device
CN107059233B (en) * 2017-04-25 2018-11-20 唐山市福至源纺织有限公司 A kind of power transmits stable thread guide device

Also Published As

Publication number Publication date
EP0378569A1 (en) 1990-07-25
JP2858768B2 (en) 1999-02-17
DE3733121C1 (en) 1989-04-27
DE3866217D1 (en) 1991-12-19
JPH03501981A (en) 1991-05-09
ES2026999T3 (en) 1992-05-16
US5020341A (en) 1991-06-04
EP0315230A1 (en) 1989-05-10
WO1989002946A1 (en) 1989-04-06

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