EP1600542A2 - Steuervorrichtung für Webmaschinen - Google Patents

Steuervorrichtung für Webmaschinen Download PDF

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Publication number
EP1600542A2
EP1600542A2 EP05104396A EP05104396A EP1600542A2 EP 1600542 A2 EP1600542 A2 EP 1600542A2 EP 05104396 A EP05104396 A EP 05104396A EP 05104396 A EP05104396 A EP 05104396A EP 1600542 A2 EP1600542 A2 EP 1600542A2
Authority
EP
European Patent Office
Prior art keywords
control device
driving shaft
main driving
axle
weaving looms
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.)
Pending
Application number
EP05104396A
Other languages
English (en)
French (fr)
Other versions
EP1600542A3 (de
Inventor
Pietro Massignani
Roberto Capitanio
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.)
Smit SpA
Original Assignee
Smit SpA
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 Smit SpA filed Critical Smit SpA
Publication of EP1600542A2 publication Critical patent/EP1600542A2/de
Publication of EP1600542A3 publication Critical patent/EP1600542A3/de
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/02—General arrangements of driving mechanism

Definitions

  • the present invention refers to a control device for textile weaving looms.
  • a primary type of control device currently in use utilizes a control motor that is mechanically connected to a series of controllable loom mechanisms while a toothed wheel is mounted on the inside in a box-like structure and can be moved in different multiple axial positions so that in a first position of the above-mentioned toothed wheel, the main control motor controls the movement of the mechanisms and in a second position of said wheel the connection to the above-mentioned mechanisms is interrupted.
  • This solution may be obtained with a motor arranged coaxial or parallel to the main shaft and connected to it through generic transmission components.
  • the object of the present invention is to produce a control device for textile weaving looms that enables the simple and efficient connection of the driving axle with the various axles, main and secondary, with respect to traditional manufacturing solutions.
  • Another object of the invention is that of producing a control device for textile weaving looms where the main motor can be used to control the machine during normal operation and forward and backward movement in slow motion for warp search (in the latter case, during the movement of the shed formation machine, the loom comb or sley is kept in a blocked position).
  • Another object of the present invention is that of indicating a control device for textile weaving looms, which provides an economic solution for the connection between driving axle and main axle, integrating a tooth joint and a brake in one single unit controlled by at least one magnet.
  • a further object of the invention is to indicate a control device for textile weaving looms that drastically simplifies the mechanical lay-out of the textile machine, enabling the coaxial mounting of a joint and a brake, reducing, in this way, the number of moving parts and hence the power absorption rate of the loom.
  • One other object of the invention is to indicate a control device for textile weaving looms that is relatively simple to produce and to use, as well as efficient, functional, inexpensive, safe and reliable.
  • the invention relates to a simple and efficient control device through which it is possible to connect the axle of the driving motor with the various axles, main and secondary, enabling the following:
  • the weaving loom control device thus conceived is simple and therefore reliable, it allows to carry out all the functions typical of looms while using a reduced number of components and it facilitates the mounting operations.
  • the loom control device is direct, without the help of brake/clutch groups and/or flywheel, and also activates movements in slow motion without the need of auxiliary groups.
  • gear 2 is rigidly connected to the axle 18 of the control drive 1 and controls the main axle 3 and the secondary axle 6 through the respective gears 4, 5.
  • Axle 3 supplies movement to the loom, indicated in general at 23, to the relative comb 23A and all the auxiliary groups connected to it, while the axle 6 supplies movement to the shed formation devices indicated in general at 22.
  • an additional axle 26, integral with gear 25, may be used to control other devices, indicated in general in figure 6 at 24, which move synchronously with the shed formation devices 22; the axle or shaft 26 is always synchronized with the driving axle 6.
  • the axle 3 and the gear 4 rotate integral with each other and the motor 1 in this configuration, simultaneously controls the axles 3 and 6 (figures 1-2). If, when the need arises, for example during the weft search phase, it is necessary to move only device 22 and exclude the movement of comb 23A, the gear 4 is freed with respect to axle 3, which will be blocked in a final and fixed position; in this situation, the control motor 1 only moves the axle 6 through toothed wheels or gears 2 and 5 as in fig. 1 and the axles 6 and 26, through the gears 2, 5, 4 and 25 as in fig. 6.
  • the motor 1 rotates at a suitable speed established by the control drive.
  • the free rotation of gear 4 with respect to the shaft 3 is obtained in a highly economical solution, using only shaft 3 and integrating in one single unit a tooth joint and a braking element, both elastically floating in axial direction with respect to the supporting axle; moreover, as a preferred solution, the tooth joint and the braking element may be controlled by a single magnet.
  • the element 9 of the tooth joint is integral with gear 4, which is mounted on gear 3, with an interposed bearing.
  • a second element 10 of the tooth joint is integral with the shaft 3 in a circumferential sense and is also mobile in the axial direction with respect to the above-mentioned shaft 3, thanks to the presence of a deformable element 11.
  • element 10 of the tooth joint held fast by the deformable support 11, is pressed by the springs 12 against element 9 so that, by using suitable coupled toothing of the elements 9 and 10, the shaft 3 and the gear 4 act like two yoked, integral elements able to transmit the necessary torque to move the weaving loom 23.
  • control unit 8 When upon stopping of the weaving loom 23, due, for example, to the breaking of weft or warp threads, only the shed formation device 22 needs to be moved, the toothed wheel or gear 4 is freed with respect to shaft 3 disconnecting the two elements 9 and 10 by means of the action of magnet 13 driven by control unit 8 (figs. 1, 6). Before this operation, the control unit 8 memorizes the angular position of the shaft 6, detected by the measuring device 17, corresponding to the stop position of the weaving loom 23.
  • the driving motor can move the gear 5 and hence, the shed formation device 22, with a speed established by the drive (fig. 4).
  • the rigidity of the elastic element 15 is chosen so that, together with suitable control of the power supply of the magnet 13, it is possible to control the anchor 14 resting on the braking surface 16, which is integral with the structure of the weaving loom 23, before the disconnection of elements 9 and 10 (fig. 5).
  • elements 9 and 10 are returned to the starting configuration at which the weaving loom was stopped and the toothings of elements 9 and 10 were yoked.
  • the toothed element 10 and the anchor 14 are kept resting on the surface 16 by the magnetic field generated by the magnet 13 and powered by a predetermined power level (position represented in figure 4).
  • the element 9 is rotated by the driving motor 1, through the gear 2, until it reaches the nearest engaged position, previously memorized by unit 8, while the position is controlled by means of the measuring device 17.
  • the element 9 is moved by the motor 1 through the gear 2 and slides on element 10 until it reaches the engagement position previously detected by the measuring device 17 and memorized by the unit 8.
  • the driving motor 1 is able to freely synchronize the movement of the shed formation device 22 and the comb or sley 23A of the loom 23.
  • the shed formation device 22 may transmit a significant torque to the weaving loom 23 that can move the said weaving loom unless the said torque is not contrasted by motor 1.
  • control device described above may be integrated with one or more additional brakes, indicated by 19, 20, 21 and 27 in figures 1 and 6, to be used indifferently on one of the axles indicated respectively by 3, 18, 6 and 26 in figures 1 and 6.
  • This additional braking is meant to be activated when the power supply of the weaving loom 23 fails.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP05104396A 2004-05-25 2005-05-24 Steuervorrichtung für Webmaschinen Pending EP1600542A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI20040129 ITVI20040129A1 (it) 2004-05-25 2004-05-25 Dispositivo di comando per telai tessili
ITVI20040129 2004-05-25

Publications (2)

Publication Number Publication Date
EP1600542A2 true EP1600542A2 (de) 2005-11-30
EP1600542A3 EP1600542A3 (de) 2006-07-05

Family

ID=34939952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05104396A Pending EP1600542A3 (de) 2004-05-25 2005-05-24 Steuervorrichtung für Webmaschinen

Country Status (2)

Country Link
EP (1) EP1600542A3 (de)
IT (1) ITVI20040129A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2341170A1 (de) 2009-12-30 2011-07-06 Promatech S.p.A. Antriebseinheit für Webstühle mit hoher Verwendungsflexibilität mit Sicherheitssteuervorrichtung für möglicherweise kritische Phasenverschiebungen der mechanisch beweglichen Elemente und Webverfahren mit der Einheit
EP3919661A1 (de) * 2020-06-04 2021-12-08 Tsudakoma Kogyo Kabushiki Kaisha Webmaschine
EP3919660A1 (de) * 2020-06-04 2021-12-08 Tsudakoma Kogyo Kabushiki Kaisha Webmaschine
EP3919662A1 (de) * 2020-06-04 2021-12-08 Tsudakoma Kogyo Kabushiki Kaisha Webmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514959A1 (de) * 1991-05-23 1992-11-25 Picanol N.V. Verfahren und Vorrichtung zum Antrieb einer Webmaschine im Langsamlauf
JPH07316956A (ja) * 1994-05-24 1995-12-05 Toyota Autom Loom Works Ltd 織機の停止装置
US5617901A (en) * 1995-02-07 1997-04-08 Picanol N.V. Variable drive system for driven loom components
EP1158081A1 (de) * 2000-05-25 2001-11-28 Promatech S.p.A. Antriebsvorrichtung für Webmaschinen ohne Schwungrad und Reibungskupplung
EP1245707A1 (de) * 2001-03-29 2002-10-02 Promatech S.p.A. Multipositionskupplung mit Blockiereinrichtung des beweglichen Elementes in einer Webmaschinenantriebsvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514959A1 (de) * 1991-05-23 1992-11-25 Picanol N.V. Verfahren und Vorrichtung zum Antrieb einer Webmaschine im Langsamlauf
JPH07316956A (ja) * 1994-05-24 1995-12-05 Toyota Autom Loom Works Ltd 織機の停止装置
US5617901A (en) * 1995-02-07 1997-04-08 Picanol N.V. Variable drive system for driven loom components
EP1158081A1 (de) * 2000-05-25 2001-11-28 Promatech S.p.A. Antriebsvorrichtung für Webmaschinen ohne Schwungrad und Reibungskupplung
EP1245707A1 (de) * 2001-03-29 2002-10-02 Promatech S.p.A. Multipositionskupplung mit Blockiereinrichtung des beweglichen Elementes in einer Webmaschinenantriebsvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 04, 30 April 1996 (1996-04-30) -& JP 07 316956 A (TOYOTA AUTOM LOOM WORKS LTD), 5 December 1995 (1995-12-05) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2341170A1 (de) 2009-12-30 2011-07-06 Promatech S.p.A. Antriebseinheit für Webstühle mit hoher Verwendungsflexibilität mit Sicherheitssteuervorrichtung für möglicherweise kritische Phasenverschiebungen der mechanisch beweglichen Elemente und Webverfahren mit der Einheit
EP3919661A1 (de) * 2020-06-04 2021-12-08 Tsudakoma Kogyo Kabushiki Kaisha Webmaschine
EP3919660A1 (de) * 2020-06-04 2021-12-08 Tsudakoma Kogyo Kabushiki Kaisha Webmaschine
EP3919662A1 (de) * 2020-06-04 2021-12-08 Tsudakoma Kogyo Kabushiki Kaisha Webmaschine
US11591724B2 (en) 2020-06-04 2023-02-28 Tsudakoma Kogyo Kabushiki Kaisha Loom
US11732389B2 (en) 2020-06-04 2023-08-22 Tsudakoma Kogyo Kabushiki Kaisha Loom
US11753753B2 (en) 2020-06-04 2023-09-12 Tsudakoma Kogyo Kabushiki Kaisha Loom
JP7384747B2 (ja) 2020-06-04 2023-11-21 津田駒工業株式会社 織機

Also Published As

Publication number Publication date
ITVI20040129A1 (it) 2004-08-25
EP1600542A3 (de) 2006-07-05

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