EP3114263B1 - Métier à tisser comprenant une roue motrice non fixe - Google Patents

Métier à tisser comprenant une roue motrice non fixe Download PDF

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Publication number
EP3114263B1
EP3114263B1 EP15707131.7A EP15707131A EP3114263B1 EP 3114263 B1 EP3114263 B1 EP 3114263B1 EP 15707131 A EP15707131 A EP 15707131A EP 3114263 B1 EP3114263 B1 EP 3114263B1
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EP
European Patent Office
Prior art keywords
axis
drive
hinge
driving wheel
unit
Prior art date
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Active
Application number
EP15707131.7A
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German (de)
English (en)
Other versions
EP3114263A1 (fr
Inventor
Axel Hundertmark
Dieter Hambrock
Rainer Oeding Erdel
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.)
Schlatter Deutschland & Co KG GmbH
Original Assignee
Schlatter Deutschland & Co KG GmbH
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Publication date
Application filed by Schlatter Deutschland & Co KG GmbH filed Critical Schlatter Deutschland & Co KG GmbH
Publication of EP3114263A1 publication Critical patent/EP3114263A1/fr
Application granted granted Critical
Publication of EP3114263B1 publication Critical patent/EP3114263B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/275—Drive mechanisms

Definitions

  • the invention relates to a loom according to the preamble of claim 1.
  • weaving machines are known in practice, in which the weft thread is introduced by means of rigid rods or flexible bands in the compartment. These rods or bands are arranged on one or both sides of the fabric. To drive these rods or bands, so the entry organs, these entry organs are provided with a toothing, which cooperates with a drive wheel to allow in this way an oscillating movement of the entry organs.
  • the drive wheel in turn is rotatably driven by a drive member, wherein the drive member may be directly an electric motor or a transmission, which in turn by a motor such. B. is driven by an electric motor.
  • the inserted into the tray weft thread is taken after the weft insertion by a safety gear from the gripper.
  • the drive wheel and the entry organs are arranged on the relative to the rest of the machine frame moving batten.
  • This construction has the advantage that the handling of the weft thread can be simplified by a weft yarn transfer is less required in the weft insertion process, so that an improved error-immunity of the loom results.
  • the protruding thread ends can be kept as short as possible in this construction.
  • the drive member which sets the drive wheel in rotation also together with the drive wheel and the entry members, ie together with the sley, movable. Due to its comparatively large mass causes this resonating with the batten drive member that the sley in addition to their already oscillating back and forth motion can be added in additional vibrations that are undesirable.
  • This undesirable natural vibrations of the sley could be counteracted by a reinforced and stiffened embodiment of the sley, whereby the mass of the sley, however, would be increased even further, which in terms of the required drive energy and in terms of the rest of the design, for. B. of bearings in which the batten is guided, would cause a disadvantageous overhead in the production and operation of the loom.
  • An actuating device for the drive gear of a weft carrier of a shuttleless loom in which a drive member is arranged below the drive gear.
  • the drive member comprises a crank drive, which oscillates an intermediate rod oscillating back and forth.
  • a carriage mounted on the toothed belt oscillates and moved off. The distance of the reversal points of the carriage determines the extent of the insertion depth of the weft carrier in the shed.
  • a drive device for the weft gripper head carrier of a loom known, in which also a drive member which has a transmission, is arranged below a drive wheel.
  • a bearing axis of the transmission is provided just below the axis of rotation of the drive wheel.
  • the drive member further comprises a drive shaft which is arranged below and at right angles to the axis of rotation of the drive wheel. Due to the periodic relative movements between the drive shaft and the gear, a hinge pin is provided, which is rotatably mounted by means of a ball located at its end, pivoting and sliding.
  • the invention has for its object to improve a generic weaving machine to the effect that the drive of the movable with the sley entry system is possible with the lowest possible mass of the moving parts.
  • the invention proposes that the organ axis of the drive member is substantially in alignment with the axis of rotation of the drive wheel designated as the wheel axis. Essentially means that due to the relative movement between the machine frame and the batten also recurring relative movements between the drive member and the drive wheel done, which cause deviations from an exact same axis arrangement of these two elements. Even if due to these regular axle deviations, the organ axis of the drive member is not constantly aligned with the wheel axle of the drive wheel, so it is a much more direct power transmission from the drive member to the drive wheel possible as in arrangements in which the organ axis and the wheel axis are aligned substantially parallel or at right angles to each other.
  • the proposed embodiment of the loom allows due to the much more direct power transmission from the drive member to the drive wheel drive the batten with high precision, since the number of intermediate components, which are each movable relative to each other, can be kept as low as possible. Accordingly, the overall play in the drive of the drive wheel, which would otherwise add up from the correspondingly larger number of a respective game between the plurality of mentioned components, is reduced.
  • the proposed possible, lesser game makes the loom less susceptible to wear and allows the production of a high quality fabric on the loom.
  • the drive member is decoupled from the drive wheel in terms of movement, as the drive member remains stationary, so for example, is attached to the machine frame itself, while the drive wheel is provided together with the entry members and the sley as part of the movable sley assembly.
  • the transmission of the rotational drive forces from the drive member to the drive wheel is effected by a corresponding articulated connection, said articulated connection enabling a length compensation is designed so that the relative movement of the sley assembly relative to the machine frame and thus the drive member can be compensated.
  • Such joints, the rotational forces transmitting and a length compensation enabling configured are known to those skilled in the art, for example in the form of flexible shafts, laid in the bow, allow a distance compensation between the two components to be coupled and the transmission of rotational forces.
  • the drive member may be configured as an electric motor, so that while avoiding a transmission, the required drive power can be kept as low as possible, since the drive losses that would cause the transmission can be avoided. It can also be used a hydraulic or a pneumatic actuator.
  • the aforementioned electric motor has the advantage over both the low-loss drive and the advantage that leaks are excluded.
  • an arrangement of two spaced-apart cheeks can be provided on a first joint connecting element, so that this first joint connecting element can also be referred to as a fork.
  • the cooperating second joint connecting element is designed as a joint connecting plate which extends into this fork, ie between the two cheeks.
  • this second embodiment variant of the hinge connection can be produced without play or adjust free of play, so that this second embodiment variant of the hinge connection is economically advantageous.
  • this second embodiment variant of the articulated connection can be produced without requiring special, comparatively expensive purchased parts, as otherwise may be the case, for example, in the case of high-precision sliding toothing.
  • Fig. 1 is a weaving machine 1 shown in detail, wherein in the region of a Weblade imagery 2, a drive wheel 3 is arranged, which cooperates by means of an outer toothing with a belt 4, which is provided as an entry member for the weft insertion.
  • the drive wheel 3 is driven by a drive member 5, which is designed as an electric motor and is fixedly provided on the machine frame of the loom 1. Between the drive member 5 and the drive wheel 3, a hinge connection 6 is provided, which has a first, connected to the drive member 5 joint connecting element, which is referred to as fork 7 and two spaced-apart cheeks 8 has.
  • a second joint connecting element 9 is non-rotatably connected to the drive wheel 3.
  • the articulated connection plate designed as the second hinge connection element 9 far into the fork 7 and between the two cheeks 8 a.
  • Fig. 2 In contrast, it is shown that the sley 2 also assumes a second position during its oscillating movement regularly, so that here both a length compensation and an angle compensation between the drive wheel 3 and the drive member 5 must be made.
  • the elements of the articulated connection 6 are in the same angular position as in FIG Fig. 1 and it can be seen that the joint connecting plate of the second joint connecting element 9 still protrudes into the fork 7, albeit with a smaller area proportion between the two cheeks 8, so that the transmission of rotational forces by means of the articulated connection 6 is still possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (3)

  1. Métier à tisser (1), comprenant
    un châssis machine ,
    un battant (2) de métier à tisser déplaçable relativement au châssis machine,
    un dispositif introduisant le fil de trame,
    une barre rigide ou un ruban (4) flexible qui officie d'organe d'introduction guidant le fil de trame et faisant partie du dispositif d'introduction,
    une denture prévue contre l'organe d'introduction,
    une motrice (3) en appui rotatif autour d'un axe de rotation appelé axe de roue, roue motrice qui présente également une denture au moyen de laquelle ladite roue interagit avec la denture de l'organe d'introduction,
    et avec un organe d'entraînement (5) entraînant la roue motrice (3), organe qui est situé contre le châssis machine et qui décrit un mouvement rotatif autour d'un axe de rotation appelé axe d'organe,
    sachant que les organes d'introduction et la roue d'entraînement (3) sont déplaçables ensemble avec le battant (2) et relativement au châssis machine et qu'une liaison articulée (6) d'une longueur et d'un angle variables, et qui transmet également les forces de rotation, est prévue entre l'organe d'entraînement (5) et la roue d'entraînement (3),
    caractérisé en ce que l'axe de l'organe d'entraînement (5) est orienté essentiellement dans l'alignement de l'axe de rotation de la roue d'entraînement (3) appelé axe de roue.
  2. Métier à tisser selon la revendication 1, caractérisé en ce que la liaison articulée (6) présente une fourche (7) à deux flancs (8) distants l'un de l'autre qui forme un premier élément de la liaison articulée, ainsi qu'une plaque de liaison articulée formant un second élément (9) de la liaison articulée, qui s'étend dans la fourche (7) entre les deux flancs (8) de celle-ci, sachant que l'un des deux éléments (7, 9) de la liaison articulée est relié avec l'organe d'entraînement (5) et que le second est relié sans pouvoir tourner avec la roue motrice (3), et sachant que la plaque de la liaison articulée est retenue, tout en pouvant se mouvoir longitudinalement, entre les deux flancs (8) de la fourche (7).
  3. Métier à tisser selon la revendication 1 ou 2, caractérisé en ce que l'organe d'entraînement (5) est configuré en moteur électrique.
EP15707131.7A 2014-03-06 2015-02-27 Métier à tisser comprenant une roue motrice non fixe Active EP3114263B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014103023.0A DE102014103023B3 (de) 2014-03-06 2014-03-06 Webmaschine mit einem nichtstationären Antriebsrad
PCT/EP2015/054168 WO2015132156A1 (fr) 2014-03-06 2015-02-27 Métier à tisser comprenant une roue motrice non fixe

Publications (2)

Publication Number Publication Date
EP3114263A1 EP3114263A1 (fr) 2017-01-11
EP3114263B1 true EP3114263B1 (fr) 2018-03-21

Family

ID=52131636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15707131.7A Active EP3114263B1 (fr) 2014-03-06 2015-02-27 Métier à tisser comprenant une roue motrice non fixe

Country Status (3)

Country Link
EP (1) EP3114263B1 (fr)
DE (1) DE102014103023B3 (fr)
WO (1) WO2015132156A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526212A (en) * 1980-04-11 1985-07-02 Alamak Sa Actuating device for reciprocating grippers in shuttleless looms
CH643892A5 (de) * 1980-05-21 1984-06-29 Saurer Ag Adolph Antriebsvorrichtung fuer das antriebszahnrad des traegerbandes fuer den schussfadengreifer einer schuetzenlosen webmaschine.
CH663228A5 (en) * 1984-01-30 1987-11-30 Xaver Gsell Drive device for a weft-thread gripper-head carrier on a weaving machine
JP2007031887A (ja) * 2005-07-27 2007-02-08 Tsudakoma Corp レピア織機におけるレピア駆動装置
FR2906266B1 (fr) * 2006-09-22 2008-12-19 Schonherr Textilmaschb Gmbh Dispositif de commande de lance flexible et metier a tisser incorporant au moins un tel dispositif

Also Published As

Publication number Publication date
WO2015132156A1 (fr) 2015-09-11
DE102014103023B3 (de) 2015-01-22
EP3114263A1 (fr) 2017-01-11

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