EP0598264B1 - Vorrichtung zum Auswählen und Zustellen von Schussfäden für eine Webmaschine - Google Patents

Vorrichtung zum Auswählen und Zustellen von Schussfäden für eine Webmaschine Download PDF

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Publication number
EP0598264B1
EP0598264B1 EP93117545A EP93117545A EP0598264B1 EP 0598264 B1 EP0598264 B1 EP 0598264B1 EP 93117545 A EP93117545 A EP 93117545A EP 93117545 A EP93117545 A EP 93117545A EP 0598264 B1 EP0598264 B1 EP 0598264B1
Authority
EP
European Patent Office
Prior art keywords
accordance
feeder
drive
thread
drive motors
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
EP93117545A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0598264A1 (de
Inventor
Geert Geerardyn
Bernard Vancayzeele
Dirk Lewyllie
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.)
Picanol NV
Original Assignee
Picanol NV
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 Picanol NV filed Critical Picanol NV
Priority to EP96119033A priority Critical patent/EP0763613B1/de
Publication of EP0598264A1 publication Critical patent/EP0598264A1/de
Application granted granted Critical
Publication of EP0598264B1 publication Critical patent/EP0598264B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/38—Weft pattern mechanisms

Definitions

  • the invention relates to a device for selecting and delivering weft threads to an insertion member for a weaving machine with at least one rod-shaped feeder associated with a weft thread, which is guided in its longitudinal direction and which can be moved between a rest position and a delivery position by means of an eccentric drive and its own drive motor.
  • the rod-shaped or needle-shaped feeders are mounted in a longitudinally displaceable manner in two longitudinal guides. Between the longitudinal guides, a rocker acts on the feeder, the other end of which is stationary. Actuating rods engage approximately in the middle of these rockers, the other end of which is connected to an eccentric drive, to each of which a drive motor belongs, in particular a stepper motor.
  • the eccentric path of the eccentric drives is translated by means of the rockers, so that the feeders cover a distance between their rest position and their infeed position which corresponds approximately to twice the eccentric path.
  • thread feeders that can be moved alternately from the rest position to the infeed position are attached to a toothed belt.
  • the toothed belt runs around a deflection wheel and a drive wheel, which is driven by an electric motor in a reciprocating motion.
  • the thread feeder consists of a rod-shaped part which is guided in a linear manner in a linear guide and a flexible cable.
  • One end of the flexible cable is connected to the rod-shaped part of the thread feeder.
  • the other end of the flexible cable is attached to the circumference of a disk which can be driven by a drive motor.
  • the invention has for its object to design a device of the type mentioned so that it can work at high working frequencies.
  • the rod-shaped feeder is connected directly to the eccentric drive, which has an eccentric path corresponding at least to the path of the feeder between its rest position and its infeed position, and in that a guide is provided for the feeder which compensates for the transverse movements of the Eccentric arc-shaped movements allowed the rod-shaped feeder.
  • the device according to the invention has the advantage that only relatively small masses have to be moved to move the feeder or feeders between the rest position and the delivery position, so that a high working frequency for the feeder or feeders and thus high weaving speeds can be achieved.
  • the feeder or feeders can be moved in any sequence and at any time independently of other weaving machine parts. A balance between the reciprocating movement of the feeder and the deviating transverse movements of the eccentric drive is obtained in a simple manner without increasing the masses to be moved.
  • each feeder is designed as a module with its drive motor, its eccentric drive and its guide. This creates the possibility in a simple manner that the number of thread feeders can be adapted to the requirements for the production of a specific fabric by additional attachment or removal of modules. In addition, it is possible to easily replace a module as a whole in the event of a defect.
  • the feeders are arranged in a common plane.
  • the modules of adjacent feeders are arranged mirror-symmetrically with respect to the common plane of the feeders. This makes it possible to arrange a large number of feeders in a very compact design.
  • a single module (1) of a device for selecting and delivering weft threads is shown, which consist of a plurality of similar modules (1).
  • Each module (1) contains a thread feeder (3), the end of which is provided with an eye (21) in which a weft thread (30) is guided.
  • Each module (1) contains a drive motor (4) for the thread feeder (3).
  • the drive motor (4) is connected directly via an eccentric drive (6) to the thread guide (3) designed as a round rod or needle (11).
  • a crank (9) parallel to the thread feeder (3) is arranged in a rotationally fixed manner.
  • the crank (9) is provided with a crank pin (10) on which the end of the thread feeder (3) opposite the eye (21) is mounted.
  • the rod or needle (11) of the thread feeder (3) is guided in a guide (12) which has a longitudinal bore (13). This guide (12) is arranged as close as possible to the end of the thread feeder (3) which has the eye (21) and can be rotated about an axis (14) parallel to the shaft (5).
  • Each module (1) has as a supporting structure a plate (16), on the back of which the drive motor by means of only indicated Screws (22) is attached.
  • the plate (16) is provided with a recess (17) in the area of the eccentric drive (6).
  • the thread feeder (3) and its guide (12) are located on the side of the plate (16) opposite the drive motor (4).
  • the guide (12) is inserted with its axis (14) through the plate (16) and secured on the opposite side with a securing element, for example a clip (23).
  • the plate (16) has a trapezoidal base, tapering from the area of the drive motor (4) to the area of the guide (12).
  • the masses of the parts to be moved by the drive motor (4), namely the crank (9) and the thread feeder (3) and the guide (12) are relatively small, so that correspondingly low inertia forces for the adjustment of the thread feeder (3) have to be overcome are. This enables higher working speeds and / or the use of relatively low-power drive motors (4).
  • stops (25, 26) consist of projections (25, 26) of the recess (17) which limit the maximum angle of rotation of the crank (9) and thus also of the shaft (5) of the drive motor (4).
  • the projections (25, 26) are arranged such that in the rest position (Fig. 1) and in the infeed position (Fig. 3) the crank (9) and the rod or needle (11) of the thread feeder (3) are aligned with one another, ie the shaft (5) and the crank pin (10) run in a plane through the axis of the rod or needle (11).
  • adjustable stops are provided, for example in the form of set screws, which are attached to the plate (16) and which limit the angle of rotation of the crank (9).
  • the drive motors (4) of the individual modules (1) are connected to an electronic control unit (20) which determines when and how, i.e. at what speed the thread feeders (3) are moved from the rest position (FIG. 1) to the infeed position (FIG. 3) and possibly also to an intermediate position (FIG. 4).
  • the control unit (20) can bring the thread feeder (3) into the desired position at any time and regardless of the position of other weaving machine parts, such as the comb drawer drive, the shaft drive or other drives. This makes it possible to choose the movement of the thread feeder (3), for example depending on the type of weft thread, or to cancel a weft thread entry or to bring the thread feeder (3) into any position during a stop or during a weaving machine standstill.
  • the drive motors (4) are designed as stepper motors, to which the control unit (20) supplies a pulse sequence or number of pulses suitable for the desired movement.
  • This pulse sequence can be selected so that the crank (9) is pressed against the stop (25) in the rest position and against the stop (26) in the infeed position, so that two stable positions for the thread feeder (3) are obtained.
  • the pulse sequence is designed so that the crank (9) does not abut the stop (25 or 26) in the respective end positions. This is possible due to the number of steps with which the drive motor is rotated.
  • the thread feeder (3) can be held in an adjustable rest position or infeed position by applying a so-called holding current to the drive motor (4).
  • This holding current is chosen in such a way that the positioning of the thread feeder (3) is not influenced by vibrations of the weaving machine or by the forces of the weft thread exerted on it.
  • the crank (9) and the rod or needle (11) of the thread feeder (3) in the rest position and / or in the feed position are at least approximately aligned with one another, the forces exerted by a weft thread (30) on the thread feeder (3) are practically not transmitted to the crank (9), so that only a relatively low holding current is required.
  • the eccentric drive (6) always starts moving from the rest position, i.e. in the direction of arrow (P1) of Fig. 1, as well as from the infeed movement, i.e. Direction of arrow (Q) in Fig. 3, only a relatively small movement component in the longitudinal direction of the thread feeder (3), results in a relatively smooth start of the movement of the feeder (3), so that the weft thread (30) is spared and the danger is reduced by weft breaks.
  • the control unit (20) outputs the pulse sequence to the drive motor (4) at a variable frequency, so that a slow start of the drive motor (4) is obtained in each case.
  • the thread feeder (3) If the thread feeder (3) is in its rest position, it can be provided after a certain time or for example after a certain number of stops of the sley that the crank (9) is brought into contact with the stop (25) so that a reference position of the motor shaft (5) is determined for the control unit (20).
  • a reference position can also be obtained with the aid of a detector, for example with the aid of a proximity switch.
  • the shaft (5) of the drive motor (4) is provided with an angle detector which is connected to the control unit (20).
  • the control unit (20) can then drive the controllable drive motor (4), which in this case need not be a stepper motor, until it has reached the predetermined angular position.
  • the drive motor (4) can be supplied with a current of variable frequency by the control unit (20).
  • the thread feeder (3) deflects a weft thread (30) extending between a stationary thread guide, for example a stationary eye (33), and a shed (34) in such a way that it is outside the range of movement of an insertion element (31), in particular a gripper (32), as is shown schematically in FIG. 1.
  • the thread feeder (3) is adjusted in such a way that the weft thread (30) then runs in an area in which it is gripped by the insertion element (31), for example the gripper (32).
  • the thread feeder (3) can be returned to its rest position.
  • FIG. 1 In one embodiment of the invention, which is shown in FIG.
  • the thread feeder (3) is brought into an intermediate position during the weft insertion, in which the weft thread (30) in the area of the eye (21) of the thread feeder ( 3) is deflected as little as possible. This reduces the friction in the area of the thread eye (21), so that the risk of weft breakage is reduced. It can also be provided that the thread feeder (3) is shifted with a constant movement so that the friction in the thread eye (21) is as low as possible, whereby the thread feeder (3) can change its position for this purpose. This constant adjustment can also be achieved by appropriate design of the control unit (20). Moving to the intermediate position also has an advantage if the same weft thread is to be re-inserted during the subsequent weft insertion. In this case, the thread feeder (3) only has to travel a short distance to its delivery position.
  • each module (1) is assigned a switch (48) which is connected to the control unit (20).
  • the control unit (20) is given a signal, on the basis of which the control unit (20) brings the associated thread feeder (3) into the threading position by correspondingly turning the drive motor (4).
  • the control unit (20) supplies a corresponding holding current to the drive motor (4) for this threading position, if this is a stepper motor.
  • a device for selecting and delivering weft threads consists of a large number of modules, as shown in FIGS. 5 to 7.
  • modules (1A to 1E) are designed in accordance with the previously described embodiment, ie it has a drive motor (4A to 4E) and an eccentric drive for a thread feeder (3A to 3E), each in a guide (12A to 12E) a rod or needle (11A to 11E) is guided.
  • These elements are arranged on plates (16A to 16E), as was explained with reference to FIGS. 1 to 4.
  • the thread feeders (3A to 3E) lie in a common plane.
  • the modules (1A to 1E) are arranged in two rows (40, 41) mirror-inverted to one another and offset with respect to the common plane of the thread feeders (3A to 3E).
  • the common plane can be flat or also spatially curved (arched).
  • Their plates (16A to 16E) are arranged between two holding plates (42, 43), to which they are attached with screws (46). These plates (42, 43) are connected to one another by transverse webs (44) (FIG. 6).
  • the plate (43) is held on the machine frame (45) by means of screws (47).
  • the thread feeders (3A to 3E) describe an arcuate movement (27) between their rest position and their infeed position, as is shown in FIG. 7.
  • the arcuate movements (27) of all thread feeders (3A to 3E) run parallel to one another.
  • the direction of rotation of the drive motors (4C, 4E) arranged on one side is opposite to the direction of rotation of the drive motors (4A, 4B, 4D) arranged on the other side.
  • the cutouts (17A, 17B, 17D) are also mirror-symmetrical to the opposite cutouts (17C and 17E).
  • the same plates (16) can of course be used, only the arrangement of the drive motors (4) and the longitudinal guides (12) on the base surfaces of the plates (16) being exchanged.
  • the individual modules (1A to 1C) attached to the plates (42, 43) can be attached to the plates (42, 43) individually in different positions relative to one another. It is also possible to align the plates (42, 43) with respect to the machine frame (45) and to fasten them to the machine frame (45) in a common aligned position. Since the device consists of a large number of individual modules, it is possible to enlarge or reduce the device quickly and easily by additional or fewer modules (1) according to the application. In addition, a single module can be easily replaced as a whole in the event of a defect. Since the drive motors (4) are also on the outside in the opposite arrangement (FIG. 5) are arranged, they are easily accessible and therefore also easily replaceable in the event of a defect.
  • the thread feeders (3A to 3E) are in the feed position in adjacent positions. It is of course possible to align the individual modules in such a way that all thread feeders (3A to 3E) assume an infeed position that is essentially on the same axis or even at the same point.
  • a suitable control of the drive motors (4) also has the advantage that the rest position of the thread feeder (3) can be changed without mechanical adjustments having to be made.
  • a corresponding setting can be made via the control unit (20), which is provided with an input unit, for example.
  • the thread feeders (3) are provided with thread eyes (21). In another embodiment it is provided that the thread feeders (3) are provided with thread clamps, as is also known from the prior art.
  • the guides (12) of the thread feeder (3) are held with rubber-elastic bearings, so that the axis (14) is omitted.
  • the thread feeders (3) are elastically supported in the transverse direction.
  • the thread feeder (3) it is possible to move the thread feeder (3) in a straight line movement between the rest position and the infeed position if it is provided by other means that the transverse movement of the eccentric drive with respect to the reciprocating movement of the thread feeder (3) is compensated for .
  • This can happen, for example, in that the thread feeder (3) consists of two parts which are connected to one another via a joint which has an axis of rotation parallel to the motor shaft (5).

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP93117545A 1992-11-16 1993-10-29 Vorrichtung zum Auswählen und Zustellen von Schussfäden für eine Webmaschine Expired - Lifetime EP0598264B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96119033A EP0763613B1 (de) 1992-11-16 1993-10-29 Vorrichtung zum Auswählen und Zustellen von Schussfäden für eine Webmaschine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9200987 1992-11-16
BE9200987A BE1006347A3 (nl) 1992-11-16 1992-11-16 Inrichting voor het presenteren van inslagdraden bij weefmachines.

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP96119033A Division EP0763613B1 (de) 1992-11-16 1993-10-29 Vorrichtung zum Auswählen und Zustellen von Schussfäden für eine Webmaschine
EP96119033.7 Division-Into 1996-11-28

Publications (2)

Publication Number Publication Date
EP0598264A1 EP0598264A1 (de) 1994-05-25
EP0598264B1 true EP0598264B1 (de) 1997-11-26

Family

ID=3886516

Family Applications (2)

Application Number Title Priority Date Filing Date
EP93117545A Expired - Lifetime EP0598264B1 (de) 1992-11-16 1993-10-29 Vorrichtung zum Auswählen und Zustellen von Schussfäden für eine Webmaschine
EP96119033A Expired - Lifetime EP0763613B1 (de) 1992-11-16 1993-10-29 Vorrichtung zum Auswählen und Zustellen von Schussfäden für eine Webmaschine

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP96119033A Expired - Lifetime EP0763613B1 (de) 1992-11-16 1993-10-29 Vorrichtung zum Auswählen und Zustellen von Schussfäden für eine Webmaschine

Country Status (7)

Country Link
US (1) US5400834A (zh)
EP (2) EP0598264B1 (zh)
JP (2) JP3560994B2 (zh)
CN (2) CN1034597C (zh)
BE (1) BE1006347A3 (zh)
DE (2) DE59307739D1 (zh)
HK (2) HK1001594A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014037282A2 (en) 2012-09-06 2014-03-13 Picanol Apparatus for presenting weft threads

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5615562A (en) * 1992-07-08 1997-04-01 Tecnit-Technische Textilien Und Systeme Gmbh Apparatus for production of weave-knit material
DE4325905C1 (de) 1993-08-02 1994-10-06 Dornier Gmbh Lindauer Vorrichtung zum Zuführen von Schußfäden zu einem Schußfadeneintragorgan in Webmaschinen
WO1997011215A1 (de) * 1995-09-21 1997-03-27 Textilma Ag Vorrichtung zur wahlweisen steuerung einer oszillierenden querbewegung eines fadens, insbesondere eines kettfadens einer webmaschine
BE1010334A3 (nl) * 1996-06-07 1998-06-02 Picanol Nv Inrichting voor het inbrengen van een inslagdraad bij een grijperweefmachine.
WO1997047792A1 (de) * 1996-06-07 1997-12-18 Picanol N.V. Gebergreifer für eine greiferwebmaschine
IT1293506B1 (it) * 1997-07-30 1999-03-01 Nuovo Pignone Spa Dispositivo modulare per la presentazione dei fili di trama nei telai tessili senza navetta
IT1293828B1 (it) * 1997-08-07 1999-03-10 Vamatex Nuova Spa Presentatrice di trama per telai di tessitura
GB9901358D0 (en) * 1999-01-22 1999-03-10 Griffith Textile Mach Ltd A tuft yarn selection mechanism
JP2000220060A (ja) 1999-01-28 2000-08-08 Sulzer Textil Ag レピア織機の緯糸供給装置及び配列構造
EP1024214B1 (de) * 1999-01-28 2006-05-17 Sultex AG Vorrichtung und Anordnung zum Vorlegen eines Schussfadens für eine Greiferwebmaschine
IT1308488B1 (it) * 1999-05-14 2001-12-17 Lgl Electronics Spa Metodo e dispositivo di controllo di motori elettrici tipo brushlessalimentati in corrente continua, particolarmente per la
FR2800754B1 (fr) * 1999-11-08 2003-05-09 Joint Industrial Processors For Electronics Dispositif evaporateur d'une installation de depot chimique en phase vapeur
DE50308119D1 (de) * 2003-07-10 2007-10-18 Staeubli Gmbh Schussfaden-Wechselvorrichtung für eine Webmaschine
EP1500731B1 (en) * 2003-07-10 2006-01-18 Promatech S.p.A. Presenting device for weaving looms having a single presenting rod
DE10349645A1 (de) * 2003-10-21 2005-06-02 Picanol N.V. Verfahren zum Auswählen und Zustellen von Schussfäden und Greiferwebmaschine mit einer Vorrichtung zum Auswählen und Zustellen von Schussfäden
DE102006034262A1 (de) * 2006-07-18 2008-01-24 Picanol N.V. Vorrichtung zum Zustellen von Schussfäden für eine Webmaschine
CN101935909A (zh) * 2010-09-07 2011-01-05 上海超诚电子科技有限公司 选纬器及选纬装置
BE1019807A3 (nl) 2011-07-12 2012-12-04 Picanol Inrichting en werkwijze voor het klemmen van een inslagdraad.
ITUB20160421A1 (it) * 2016-02-01 2016-05-01 Rinaldo Sperotto PRESENTATRICE ROTATIVA per macchine da tessere a preselezione meccanica e comando elettronico
BE1024401B1 (nl) 2016-07-04 2018-02-13 Picanol N.V. Naamloze Vennootschap Inrichting voor het klemmen van inslagdraden
CN107503028B (zh) * 2017-08-09 2020-01-24 江苏大学 一种球网机中送纬自动调节装置
CN109868543A (zh) * 2019-03-19 2019-06-11 江西中博智能装备制造有限公司 一种梭织织造扁平布的纬纱机构
EP4310233A1 (en) 2022-07-19 2024-01-24 Picanol Device for selecting and presenting weft threads

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US875608A (en) * 1903-03-06 1907-12-31 William N Parkes Take-up and needle-bar mechanism for sewing-machines.
GB2002039B (en) * 1977-08-05 1982-01-27 Pickering Ltd E Tufting machines
US4326566A (en) * 1979-09-11 1982-04-27 N. V. Weefautomaten Picanol Color selector
DE2940202A1 (de) * 1979-10-04 1981-04-16 Institute für Textil- und Faserforschung Stuttgart, 7410 Reutlingen Webmaschine
NL8600858A (nl) * 1986-04-03 1987-11-02 Picanol Nv Aandrijf- en stuurmechanisme voor het klemmen, presenteren en vasthouden van inslagdraden bij grijperweefmachines.
BE1002081A3 (nl) * 1988-06-17 1990-06-19 Picanol Nv Inrichting voor het presenteren van inslagdraden bij weefmachines.
DE3827265A1 (de) * 1988-08-11 1990-02-15 Mayer Fa Karl Verfahren und kettenwirkmaschine zur herstellung von polware
FR2636979B1 (fr) * 1988-09-27 1990-11-02 Marsande Petrus Dispositif d'alimentation des fils de trame pour metiers a tisser sans navette
JPH03161555A (ja) * 1989-11-20 1991-07-11 Toyota Autom Loom Works Ltd 織機における経糸通し検出装置
IT1248715B (it) 1990-06-11 1995-01-26 Vamatex Spa Dispositivo di presentazione della trama per telai di tessitura a pinze
CH682498A5 (de) * 1990-10-05 1993-09-30 Walter Kleiner Schussfadenauswahl- und Zuführvorrichtung für Webmaschine.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014037282A2 (en) 2012-09-06 2014-03-13 Picanol Apparatus for presenting weft threads

Also Published As

Publication number Publication date
EP0763613A3 (de) 1997-10-01
CN1089916A (zh) 1994-07-27
JPH06192944A (ja) 1994-07-12
BE1006347A3 (nl) 1994-07-26
CN1158368A (zh) 1997-09-03
JP2004137665A (ja) 2004-05-13
DE59307739D1 (de) 1998-01-08
EP0598264A1 (de) 1994-05-25
CN1034597C (zh) 1997-04-16
EP0763613A2 (de) 1997-03-19
DE59310049D1 (de) 2000-06-29
HK1002075A1 (en) 1998-07-31
EP0763613B1 (de) 2000-05-24
JP3560994B2 (ja) 2004-09-02
US5400834A (en) 1995-03-28
CN1072286C (zh) 2001-10-03
JP3611844B2 (ja) 2005-01-19
HK1001594A1 (en) 1998-06-26

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