EP3039178B2 - Machine à broder à navettes - Google Patents

Machine à broder à navettes Download PDF

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Publication number
EP3039178B2
EP3039178B2 EP14761558.7A EP14761558A EP3039178B2 EP 3039178 B2 EP3039178 B2 EP 3039178B2 EP 14761558 A EP14761558 A EP 14761558A EP 3039178 B2 EP3039178 B2 EP 3039178B2
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EP
European Patent Office
Prior art keywords
drive
articulated
bar
rocker arm
embroidery 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.)
Active
Application number
EP14761558.7A
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German (de)
English (en)
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EP3039178A1 (fr
EP3039178B1 (fr
Inventor
Franz Lässer
Hanno Nussbaumer
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.)
Laesser AG
Original Assignee
Laesser AG
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Publication date
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Application filed by Laesser AG filed Critical Laesser AG
Priority to EP18185389.6A priority Critical patent/EP3409821A1/fr
Publication of EP3039178A1 publication Critical patent/EP3039178A1/fr
Publication of EP3039178B1 publication Critical patent/EP3039178B1/fr
Application granted granted Critical
Publication of EP3039178B2 publication Critical patent/EP3039178B2/fr
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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
    • D05C11/18—Shuttles ; Shuttle holders; Shuttle driving arrangements

Definitions

  • Shuttle embroidery machines have been known for more than a century and work according to the two-thread system, ie with a needle thread and a shuttle thread, the needle thread being intertwined with the shuttle thread with each stitch.
  • a front eyed needle transports the needle thread through the fabric to the back of the fabric where the needle thread forms a loop when the needle is withdrawn.
  • the shuttle in which the shuttle thread is contained, is then passed through this loop.
  • Shuttle embroidery machines comprise a large number of embroidery positions arranged in a row and, accordingly, many needles and shuttles.
  • a driver bar is used to move the shuttle up and down on a vertical, slightly inclined position.
  • the bearing bore and the axis on the connecting rod which allows the driver beam to slide back and forth on its path running at an angle to the vertical, are also pushed to their limits.
  • the special version of the DE8436780U1 shuttles can be stopped in a central position by means of an intermediate gear using a coupling rod, by means of which a drive rail driven by a reciprocating oscillating shaft.
  • the drive end of the coupling rod which is guided by means of a sliding block in a connecting link of the oscillating shaft, is transferred from an eccentric position to a position that coincides with the axis of the oscillating shaft, which makes it possible for the adjustment drive for the driver beam to be kept motionless despite the continuous movement of the oscillating shaft .
  • This special version is only required if not only embroidery is carried out on a shuttle embroidery machine, but also drilling material is produced by making holes in the embroidery base.
  • a drive of the driver bar is disclosed with which the sliding movement between the connecting rod and the driver bar is to be avoided.
  • the connecting rod is equipped with flexible elements at both ends, so that the lateral movements are not to be absorbed by sliding on a shaft on the driver beam, but by elastic deformation of the connecting rod.
  • the bending forces caused by the spring elements on the connecting rod have to be overcome twice with each stroke. This is only possible with a higher drive power of the lifting drive.
  • stroke rates of more than 600 per minute elastic machine elements tend to generate additional vibrations in the driver beam in addition to the vibrations already present in a shuttle embroidery machine. Not only is the driver beam vibrated, but the shuttle tracks and the shuttles transported therein are also vibrated.
  • One object of the present invention is to create a shuttle embroidery machine whose drive means for the driver bar allows the number of stitches per minute to be increased above the previously achievable number of stitches per minute and in which the wear on the drive means is significantly reduced compared to the previously known drive means.
  • a further object is to reduce the noise generated by the drive for the driver bar, despite the higher number of stitches, accompanied by a reduction in the vibrations generated.
  • a further object of the invention is to eliminate sliding movements in the drive means and on the driver beam and to replace the linear guide means with suitable elements.
  • a further object of the invention is to further develop the shuttle embroidery machine or one and the same drive for the driver bar in such a way that it can be used for embroidery machines with shuttle tracks, which not only work counterclockwise inclined to the vertical, but also those that are inclined clockwise to the vertical.
  • crank drive not only can a higher number of stitches be achieved, but linear guide means in the form of guide rods or guide rails are no longer necessary for the displacement of the driver bar running inclined to the vertical.
  • the linear movement of the driver bar is generated by a suitably designed four-bar linkage, which is driven by a crank mechanism.
  • the sliding movements are replaced by rotary movements, which, as is known, produce less noise and with which, in addition, significantly lower acceleration and deceleration forces are generated at the reversal points of the oblique displacement of the driver beam.
  • the bearings are also subjected to significantly less stress and the rolling elements are prevented from sliding in the bearing races.
  • a further advantage of the invention is that, without replacing machine elements, the drive of shuttle tracks can be used with an angle that is arranged in a mirror-inverted manner with respect to the vertical.
  • a horizontally running shaft is arranged on it, on which the drive rod/the connecting rod is mounted so that it can be displaced transversely to the drive direction, so that the driver beam can be laterally displaced in this bearing relative to the connecting rod.
  • This sliding movement is subject to correspondingly high wear, particularly at the reversal points.
  • the crank arm can be part of a seesaw or attached directly to a continuous line shaft. In the CH 703 090 a possible solution to eliminate the wear and tear is revealed ( figure 2 ).
  • the first joint 9 thus represents a special configuration of a universal joint, which enables the connecting rod 7 to be pivoted perpendicular to the longitudinal extent of the driver bar 15 in order to be able to absorb the horizontal displacement of the driver bar 15 relative to the connecting rod 7 .
  • the not inconsiderable alternating loads can be optimally transferred in this way.
  • the driver bar 15 is in figure 4 only indicated in dot-dash lines. In the other figures, for the sake of clarity, it has been left out entirely and the guide and drive device 1 is shown on its own.
  • the upper end 7 "of the connecting rod 7 is also in a second. Universal joint 17, which is similar to the lower first joint 9, over a connecting rod pin 13 pivotally mounted.
  • the second joint 17 can be pivoted on a bearing pin 19 .
  • the bearing pin 19 is part of a fastening element 21 which establishes the connection to the driver bar 15 and is screwed to it, for example.
  • a bearing mount 23 is also formed on the fastening element 21 , on which a first rocker 25 is articulated so that it can pivot and is perpendicular to the bearing pin 19 .
  • a third rocker 33 is pivoted on an axis A on the one hand and on an axis C on the other hand.
  • the axis C or a shaft arranged thereon is stationary connected by a base plate 28 to a carrier 27 fastened to the machine frame of the shuttle embroidery machine or directly to the shuttle embroidery machine.
  • the second end of the first rocker 25 is articulated to the first end of a second rocker 31 via a rocker pivot 29 having an axis E.
  • the second end of the second rocker 31 is pivoted about an axis B.
  • the axis B is arranged in a stationary manner on the base plate 28 .
  • the three rockers 25, 31 and 33 consequently form a four-bar linkage with the two stationary axes B and C on the base plate 28 and the two axes A and E, which can move on circular arcs with different radii, on the first rocker 25.
  • FIG 7 the upper end position of the driver bar 15 is shown.
  • the end of the first rocker 25 opposite the rocker pin 29 (axis E) is pivotably mounted on the bearing mount 23 on the fastening element 21 on the driver beam 15 and pivotable about the pivot axis D arranged there.
  • the driver bar 15 With the oscillating vertical movement of the connecting rod 7, which is connected to the driver bar 15 in an articulated manner via the fastening element 21, the driver bar 15 is moved upwards and downwards in the direction of the arrow P on the one hand. Since the fastening element 21 and consequently also the driver bar 15 are articulated to the first lever 25 via the axis D, the drive movement with the connecting rod 7 does not take place vertically, but the driver bar 15 is driven by the first rocker 25, which is also on the second and third rocker 31,33 is articulated, also moves in the horizontal direction H.
  • the vertical movement P between the upper and lower reversal point of the connecting rod 7 simultaneously causes a displacement, i.e. a vertical movement and at the same time a horizontal movement by the amount H of the driver bar 15.
  • the lateral displacement H of the driver bar 15 between the lower and the The upper reversal point of the connecting rod 7 causes the driver bar 15 to move in an approximately straight line which is at an angle ⁇ , for example 15°, to the vertical.
  • the driver beam 15 consequently moves, since it is carried by a plurality of drive and guide devices 1 arranged next to one another along the driver beam 15 without fixedly arranged linear guide means, e.g. B. rails, as in the prior art according to Figures 1 and 2 are absolutely necessary, guided on the desired acute-angled to the vertical lying and approximately rectilinear path.
  • the drive device 1 thus takes over not only the lifting movement P of the driver bar 15, but also the horizontal movement H of the driver bar 15 at the same time and without the aid of linear guide means. It consequently eliminates two guided linear movements with each stroke and stitch of the embroidery machine according to figure 1 and the linear guide running at an acute angle to the vertical according to figure 2 and there the vibration-relevant bends of the connecting rod 7.
  • the latter can also be used to drive driver beams 15 in shuttle embroidery machines which have shuttle tracks that are inclined to the vertical and run in the opposite direction - ⁇ from the vertical.
  • the third rocker 33 counterclockwise and thus also pivoting the second rocker 31 clockwise from the figure 8 position shown in solid lines to the position shown in broken lines, this conversion can be easily made.
  • the drive device consequently works with exactly the same machine elements in both pivoting directions and enables the manufacturer to be able to offer his device for both types of shuttle guidance without additional replacement elements and thus without additional costs and warehousing.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Claims (10)

  1. Machine à broder à navettes avec une barre chasse-navette (15) avec des clous chasse-navette y étant fixés pour le déplacement en commun d'une multiplicité de navettes le long de coursières de navettes disposées de façon inclinées vers la verticale et avec un entraînement de levage pour la barre chasse-navette, lequel est disposé de façon essentiellement parallèle aux coursières de navettes, caractérisée en ce que l'entraînement de levage de la barre chasse-navette (15) est effectué avec un mécanisme de transmission (5, 7) construit avec un quadrilatère articulé, lequel est entraîné par un mécanisme à manivelle , la barre chasse-navette (15) n'étant pas montée dans un élément de guidage qui est linéaire pour le guidage droit, une pluralité de quadrilatères articulés portant et entraînant de façon oscillante la barre chasse-navette (15) et la barre chasse-navette (15) étant reliée de façon pivotante avec les quadrilatères articulés et étant guidée par ceux-ci sur une trajectoire s'étendant de façon inclinée vers la verticale, le quadrilatère articulé comprenant la disposition de plusieurs coulisses reliées entre elles (25, 31, 33), lesquelles sont articulées sur un mécanisme de transmission (5, 7) commun et leur points de jonction pivotants avec la barre chasse-navette (15) effectuant le mouvement quasiment droit avec inclinaison spécifiée par rapport à la verticale ou à l'horizontale, et chaque quadrilatère articulé sur le mécanisme de transmission (5, 7) comprenant les trois coulisses (25, 31, 33), la deuxième (31) et la troisième (33) coulisses étant articulées sur le bâti de machine, et la première coulisse (25) étant reliée de façon pivotante avec les deux autres coulisses (31, 35) et l'extrémité libre d'une bielle (7) sur le mécanisme de transmission (5, 7) s'engageant de façon pivotante sur la première coulisse (25).
  2. Machine à broder à navettes selon la revendication 1, caractérisée en ce que la bielle (7) est reliée de façon pivotante aussi bien avec la première coulisse (25) qu'avec le mécanisme de transmission (5, 7).
  3. Machine à broder à navettes selon la revendication 2, caractérisée en ce que la liaison pivotante entre la bielle (7) et la première coulisse (25) est effectuée sur la première coulisse (25).
  4. Machine à broder à navettes selon l'une des revendications 1 à 3, caractérisée en ce que la bielle (7) est reliée avec respectivement une articulation (9, 17), comprenant respectivement deux tourillons (11, 19) disposés perpendiculairement l'un par rapport à l'autre, avec la manivelle (5) et la première coulisse (25).
  5. Machine à broder à navettes selon l'une des revendications 2 à 4, caractérisée en ce que la première coulisse (25) est articulée sur un élément de fixation (21), la bielle (7) aussi étant articulée sur ledit élément de fixation (21), et en ce que l'élément de fixation (21) est fixé sur la barre chasse-navette (15).
  6. Machine à broder à navettes selon l'une quelconque des revendications précédentes, caractérisée en ce que le mécanisme de transmission (5, 7) est relié à une bascule, laquelle peut être entraînée par un arbre de renvoi entraînant tous les mécanismes de transmission (5, 7).
  7. Machine à broder à navettes selon l'une des revendications 1 à 6, caractérisée en ce que le mécanisme de transmission (5, 7) et les coulisses (25, 31, 33), lesquelles s'engagent sur la barre chasse-navette (15), peuvent guider celle-ci sur une trajectoire linéaire, laquelle présente un angle de +α ou -α par rapport à la verticale.
  8. Machine à broder à navettes comprenant un dispositif d'entraînement et un dispositif de guidage (1) pour une barre chasse-navette (15) avec clous chasse-navette pour l'entraînement d'une multiplicité de navettes, lesquelles peuvent être guidées de façon alternée entre deux positions finales, par guidage latéral dans des coursières inclinées vers la verticale, caractérisée en ce qu'un mécanisme de transmission (5, 7) pouvant être entraîné, construit avec un quadrilatère articulé, est prévu pour l'entraînement oscillant du dispositif d'entraînement et de guidage, le dispositif d'entraînement et le dispositif de guidage comprenant un levier pivotant pouvant être entraîné par le mécanisme de transmission (5, 7), dont les extrémités libres sont reliées à la barre chasse-navette (15) et conduisant celle-ci essentiellement de haut en bas,
    - le dispositif d'entraînement et le dispositif de guidage (1) étant disposés sur un support (27) ou directement sur le bâti de machine de la machine à broder,
    - le dispositif d'entraînement et le dispositif de guidage (1) comprenant au moins une première coulisse (25), une deuxième coulisse (31) et une troisième coulisse (33),
    - respectivement au moins un palier d'articulation pour liaison pivotante avec respectivement une des deux autres coulisses ou avec le support (27) étant formé sur chacune des coulisses (25, 31, 33),
    - deux axes de pivotement B et C étant formés sur le support (27) pour le montage pivotant des premières extrémités de la deuxième coulisse (31) et de la troisième coulisse (33),
    - les deux extrémités de la deuxième coulisse (31) et de la troisième coulisse (33) étant articulées de façon pivotante avec la première coulisse (25) sur les axes E et A,
    - un axe de pivotement D supplémentaire étant formé sur la première coulisse (25) à l'extérieur des axes de pivotement E, A, lequel est disposé sur la barre chasse-navette (15),
    - une extrémité d'une bielle (7) étant articulée sur le mécanisme de transmission (5, 7) et l'autre extrémité étant articulée sur la barre chasse-navette (15) et
    - un bras de manivelle (5) étant disposé sur un arbre de transmission (3) de façon à pouvoir être entraîné.
  9. Machine à broder à navettes selon la revendication 8, caractérisée en ce que la bielle (7) comprend respectivement un joint de Cardan (9, 17) à ses deux extrémités, le premier joint de Cardan (9) étant articulé avec le bras de manivelle (5) et le deuxième joint de Cardan (17) étant articulé sur l'axe D, sur la barre chasse-navette (15).
  10. Machine à broder à navettes selon l'une quelconque des revendications 8 à 9, caractérisée en ce que, sur la barre chasse-navette (15), au moins deux dispositifs d'entraînement et de guidage (1) s'engagent sur la barre chasse-navettes (15) à des emplacements espacés.
EP14761558.7A 2013-08-28 2014-08-28 Machine à broder à navettes Active EP3039178B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18185389.6A EP3409821A1 (fr) 2013-08-28 2014-08-28 Machine à broder à navettes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01459/13A CH708496A1 (de) 2013-08-28 2013-08-28 Schiffchenstickmaschine.
PCT/CH2014/000125 WO2015027349A1 (fr) 2013-08-28 2014-08-28 Machine à broder à navettes

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP18185389.6A Division-Into EP3409821A1 (fr) 2013-08-28 2014-08-28 Machine à broder à navettes
EP18185389.6A Division EP3409821A1 (fr) 2013-08-28 2014-08-28 Machine à broder à navettes

Publications (3)

Publication Number Publication Date
EP3039178A1 EP3039178A1 (fr) 2016-07-06
EP3039178B1 EP3039178B1 (fr) 2018-08-01
EP3039178B2 true EP3039178B2 (fr) 2022-06-08

Family

ID=51494053

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14761558.7A Active EP3039178B2 (fr) 2013-08-28 2014-08-28 Machine à broder à navettes
EP18185389.6A Withdrawn EP3409821A1 (fr) 2013-08-28 2014-08-28 Machine à broder à navettes

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP18185389.6A Withdrawn EP3409821A1 (fr) 2013-08-28 2014-08-28 Machine à broder à navettes

Country Status (5)

Country Link
EP (2) EP3039178B2 (fr)
CN (2) CN109023753B (fr)
CH (1) CH708496A1 (fr)
TW (2) TWI637090B (fr)
WO (1) WO2015027349A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016005334B4 (de) 2016-04-30 2018-04-26 Saurer Ag Schiffchenantriebsstrang für eine Schiffchenstickmaschine und Schiffchenstickmaschine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE30271C (de) * 1885-02-03 1885-02-03 Sächsische Stickmaschinenfabrik, a. Voigt in Kappel bei Chemnitz Bewegungseinrichtung der Schiffchen in geneigten Bahnen an Stickmaschinen
US876975A (en) * 1906-07-09 1908-01-21 Firm Of Adolph Saurer Shuttle-embroidering machine.
US1200177A (en) * 1914-08-01 1916-10-03 Saurer Fa Adolph Shuttle-operating mechanism for embroidering-machines.
CH177544A (de) 1934-05-28 1935-06-15 Wuerker G M B H Antriebsvorrichtung für Jacquardautomaten.
DE2017125C3 (de) * 1970-04-10 1974-08-15 Rudolf 5450 Neuwied Reich Vorrichtung zum Auswechseln von Schiffchen bei Stickmaschinen
JPS536616Y2 (fr) * 1973-09-07 1978-02-20
DE8436780U1 (de) * 1984-12-15 1985-03-14 Motema Textilmaschinen GmbH, 4150 Krefeld Vorrichtung zum ausschalten der bewegung der schiffchenantriebsschiene an schiffchenstickmaschinen
FR2689526A1 (fr) * 1992-04-07 1993-10-08 Sieber Hugo Machine à broder à navettes.
ATE212080T1 (de) * 1999-05-28 2002-02-15 Laesser Franz Ag Schiffchenstickmaschine mit einer treiberbalkeneinheit
ATE327362T1 (de) * 2004-04-29 2006-06-15 Laesser Ag Schiffchenstickmaschine
CH702330A1 (de) 2009-12-02 2011-06-15 Laesser Ag Mehrkopf-Mehrnadel-Stickmaschine und Unterfadeneinheit für Mehrkopf-Mehrnadel-Stickmaschine.
CH702470A1 (de) * 2009-12-18 2011-06-30 Laesser Ag Stickmaschine, insbesondere Mehrkopf-Mehrnadel-Stickmaschine.
DE102010019704B4 (de) * 2010-05-07 2013-11-07 Oerlikon Saurer Arbon Ag Schiffchen-Stickmaschine mit Antrieb des Treiberbalkens
CH705472A1 (de) * 2011-09-08 2013-03-15 Laesser Ag Stickmaschine.

Also Published As

Publication number Publication date
CN105593425A (zh) 2016-05-18
EP3039178A1 (fr) 2016-07-06
EP3039178B1 (fr) 2018-08-01
WO2015027349A1 (fr) 2015-03-05
CN109023753B (zh) 2021-07-16
TWI637090B (zh) 2018-10-01
TWI693322B (zh) 2020-05-11
TW201520395A (zh) 2015-06-01
CH708496A1 (de) 2015-03-13
CN109023753A (zh) 2018-12-18
EP3409821A1 (fr) 2018-12-05
CN105593425B (zh) 2018-11-27
TW201900974A (zh) 2019-01-01

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