EP0086999A1 - Vorrichtung zum Synchronisieren einer Fachbildemaschine mit einer Webmaschinen - Google Patents

Vorrichtung zum Synchronisieren einer Fachbildemaschine mit einer Webmaschinen Download PDF

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Publication number
EP0086999A1
EP0086999A1 EP83100863A EP83100863A EP0086999A1 EP 0086999 A1 EP0086999 A1 EP 0086999A1 EP 83100863 A EP83100863 A EP 83100863A EP 83100863 A EP83100863 A EP 83100863A EP 0086999 A1 EP0086999 A1 EP 0086999A1
Authority
EP
European Patent Office
Prior art keywords
clutch
clutches
wheel
auxiliary motor
bound
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.)
Granted
Application number
EP83100863A
Other languages
English (en)
French (fr)
Other versions
EP0086999B1 (de
Inventor
Gianluigi Cremonesi
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.)
Fimtessile Fabbrica Italiana Macchinario Tessile SpA
Original Assignee
Fimtessile Fabbrica Italiana Macchinario Tessile 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 Fimtessile Fabbrica Italiana Macchinario Tessile SpA filed Critical Fimtessile Fabbrica Italiana Macchinario Tessile SpA
Priority to AT83100863T priority Critical patent/ATE19414T1/de
Publication of EP0086999A1 publication Critical patent/EP0086999A1/de
Application granted granted Critical
Publication of EP0086999B1 publication Critical patent/EP0086999B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/146—Independent drive motor
    • 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 relates to a device for synchronizing weaving machines - as dobbies, Jacquard and the like - with looms.
  • weaving machines have to be connected to looms with perfect synchronism and when, during working of the loom, inconveniences -arise - such as, breaking of the weft or warp yarns, reading mistakes, and other drawbacks or faults - the loom has to be stopped and likewise the weaving machine, while the synchronism between them has to be restored.
  • the object of the present invention is therefore to supply a device of the aforementioned type, but with simplified features and thus very efficient and safe.
  • the invention proposes to make the device in question with a more compact structure and a more rational arrangement of its parts, thereby also reducing dimensions and vibrations, with the advantage of making it most convenient in use, as well as improving still further its efficiency and safety.
  • the device according to the invention is of the type comprising a unit of two coaxial clutches and an auxiliary motor connected to said unit by a mechanical drive for controlling the weaving machine, through one of said clutches, when the drive between the loom and said machine is interrupted through the other clutch, and it is characterized in that it comprises clutch control means in the form of a wheel with face cams, mounted coaxial and freely rotating on said clutches, but bound to the axial movements of an element of at least one of the clutches, the said wheel being caused to rotate by the auxiliary motor together with said element of said clutch, and being axially moved therewith through cooperation of its face cams with fixed cam-followers, against the action of return spring means.
  • clutch control means in the form of a wheel with face cams, mounted coaxial and freely rotating on said clutches, but bound to the axial movements of an element of at least one of the clutches, the said wheel being caused to rotate by the auxiliary motor together with said element of said clutch, and being axially moved therewith through cooperation of its
  • the device according to the invention associated to an auxiliary motor 1, comprises a train of gearwheels 2, 3, 4, 5, 6 and 7, acting as reduction gears, the first of said gearwheels being driven by the motor 1, and a double-clutch unit 10, controlled by gearwheels 8 and 9 meshing with the gearwheels 6 and 7 respectively, of said train of gearwheels.
  • All these members - with the exception of the motor 1, which is external - are mounted inside a stout casing 11, into which penetrates the sleeve 12 which transmits the motion from the loom, and from which projects the shaft 13 - coaxial to the sleeve 12 - which controls the weaving machine.
  • the gearwheels 8 and 9 are mounted freely rotatable about the main axis a of the clutch unit 10 of the device - common to the sleeve 12 and to the shaft 13 - and slidable along said axis.
  • the unit 10 comprises: a clutch 14, controlled by the sleeve 12 and formed by a clutch element 14', fixedly connected to said sleeve 12, and by a clutch element 14", mounted slidable but not rotatable on a tube 15 fixed to the shaft 13; a clutch 16, controlled by the gearwheels 8 and 9 and formed by a clutch element 16', forming a single piece with the gearwheel 8, and by a clutch element 16", mounted slidable but not rotatable on the tube 15 fixed to the shaft 13, a spring 17 being interposed between said elements 14" of the clutch 14 and 16" of the clutch 16, which spring acts along the axis of the shaft 13; and a pair of rollers 18, with which cooperate front cams 9' and 9" of the gearwheel 9.
  • the unit 10 also comprises a control member 19, which stops the rotation of the motor 1 and the feeler 19' of which is controlled by the gearwheel 8, and an elastic support element 20, interposed between the element 16" of the clutch 16 and the casing 11.
  • clutch elements 14' and 14" comprise mutually meshing teeth, positioned at different reciprocal distances, as shown in figure 7 for the element 14', so that their engagement for operating the clutch 14 can only take place in a single and very precise position.
  • the motor 1 causes the rotation of the two gearwheels 8 and 9 through the train of gearwheels 2, 3, 4, 5, 6 and 7; while rotating, the gearwheel 9 engages with its cams 91 and 9" the two rollers 18; the gearwheels 8 and 9 are then axially shifted together towards the right of figures 2 to 6; the clutch 14 is consequently disengaged, the element 14" disengaging from the element 14', while the clutch 16 engages, the element 16 t thereof engaging the element 16".
  • the shaft 13 is no longer connected to the loom and it is instead connected to the motor 1, which thus operates the weaving machine while the loom is stationary.
  • the profiles of cams 9 1 and 9" are such as to keep the clutch 16 engaged only through a limited rotation angle of the shaft 13, inferior to one turn; subsequently, the clutch 16 still remains engaged, as the teeth of elements 14' and 14" of the clutch 14 - owing to the different reciprocal angular distances - are not in an engaged position but bear the ones against the others (as shown in figure 5) and the action of the spring 17, which urges the gearwheels 8 and 9 towards the left of figure 2, is therefore ineffective.
  • the device has thus created the conditions for a synchronization of the weaving machine with the loom and for starting again the regular running of said machine.
  • This synchronization is guaranteed by the only possible position of reciprocal engagement of the two elements 14' and 14" of the clutch 14, which position in turn derives from the difference of the angular distances between the teeth of mutual engagement of the two clutch elements. It should be noted that this difference allows also a reciprocal bearing contact between said elements onto a particularly broad surface and in correspondence of at least two different areas, thereby reducing the contact pressure and making the engagement more steady.
  • gearwheels 3 and 9 have different speeds (one deriving the motion from the gearwheel 6, the other from the gearwheel 7 of different diameter, whereby, in the case illustrated, the speed of the gearwheel 9 is higher).
  • the presence of the elastic element 20 for engagement of the clutch element 16" provides the double advantage, of deadening the blows caused by the clutches and of facilitating - by elastic compression - the engagement of such clutches when the addendums of the opposite teeth of their elements hit each other.
  • Figure 6 illustrates a modified embodiment of the invention.
  • the gearwheels 8 and 9 are here caused to rotate by a single gearwheel 6', from which the gearwheel 9 is disengaged when finding itself in the original position, to the left of the device in figure 6.
  • Two supplementary gearwheels 21 and 22 of different diameter are besides provided, freely rotating on a pin 23 and with their teeth meshing with the gearwheels 8 and 9.
  • the gearwheel 9 is thus caused to rotate by the gearwheel 8 through gearwheels 21 and 22.
  • the same figure illustrates pistons 24 and 25 which, under the action of springs 26 and 27, keep the gearwheel 9 bearing against the stop 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP83100863A 1982-02-09 1983-01-31 Vorrichtung zum Synchronisieren einer Fachbildemaschine mit einer Webmaschinen Expired EP0086999B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83100863T ATE19414T1 (de) 1982-02-09 1983-01-31 Vorrichtung zum synchronisieren einer fachbildemaschine mit einer webmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1953182 1982-02-09
IT19531/82A IT1149570B (it) 1982-02-09 1982-02-09 Dispositivo perfezionato per la ricerca del passo delle macchine di armatura in telai di tessitura

Publications (2)

Publication Number Publication Date
EP0086999A1 true EP0086999A1 (de) 1983-08-31
EP0086999B1 EP0086999B1 (de) 1986-04-23

Family

ID=11158821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100863A Expired EP0086999B1 (de) 1982-02-09 1983-01-31 Vorrichtung zum Synchronisieren einer Fachbildemaschine mit einer Webmaschinen

Country Status (4)

Country Link
EP (1) EP0086999B1 (de)
AT (1) ATE19414T1 (de)
DE (1) DE3363129D1 (de)
IT (1) IT1149570B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161012A1 (de) * 1984-04-06 1985-11-13 Picanol N.V. Schusssucheinrichtung für Webstühle
US4875565A (en) * 1987-12-30 1989-10-24 Baruffaldi S.P.A. Coupling with two clutches, especially for looms
EP0466636A1 (de) * 1990-06-04 1992-01-15 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Verfahren für den Betrieb einer Webmaschine mit einer elektronischen Schaftmaschine
WO2016138065A1 (en) * 2015-02-24 2016-09-01 American Axle & Manufacturing, Inc. Vehicle driveline component having an actuation system for driveline disconnect

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2222151B2 (de) * 1971-05-07 1974-07-18 Nuovo Pignone S.P.A., Florenz, Mailand (Italien) Vorrichtung zum Zurückweben bei schützenlosen Webmaschinen
DE2509665A1 (de) * 1975-03-06 1976-09-09 Lentz Textilmaschinen Gmbh Webmaschine mit einer fachbildeeinrichtung, insbesondere schaftmaschine oder jacquardmaschine
DE2602512B1 (de) * 1976-01-14 1977-08-04 Sulzer Ag Ausrueckbare Klauenkupplung fuer Webmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2222151B2 (de) * 1971-05-07 1974-07-18 Nuovo Pignone S.P.A., Florenz, Mailand (Italien) Vorrichtung zum Zurückweben bei schützenlosen Webmaschinen
DE2509665A1 (de) * 1975-03-06 1976-09-09 Lentz Textilmaschinen Gmbh Webmaschine mit einer fachbildeeinrichtung, insbesondere schaftmaschine oder jacquardmaschine
DE2602512B1 (de) * 1976-01-14 1977-08-04 Sulzer Ag Ausrueckbare Klauenkupplung fuer Webmaschinen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161012A1 (de) * 1984-04-06 1985-11-13 Picanol N.V. Schusssucheinrichtung für Webstühle
US4875565A (en) * 1987-12-30 1989-10-24 Baruffaldi S.P.A. Coupling with two clutches, especially for looms
EP0466636A1 (de) * 1990-06-04 1992-01-15 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Verfahren für den Betrieb einer Webmaschine mit einer elektronischen Schaftmaschine
WO2016138065A1 (en) * 2015-02-24 2016-09-01 American Axle & Manufacturing, Inc. Vehicle driveline component having an actuation system for driveline disconnect
US10442293B2 (en) 2015-02-24 2019-10-15 American Axle & Manufacturing, Inc. Vehicle driveline component having an actuation system for driveline disconnect

Also Published As

Publication number Publication date
IT8219531A0 (it) 1982-02-09
EP0086999B1 (de) 1986-04-23
ATE19414T1 (de) 1986-05-15
IT1149570B (it) 1986-12-03
DE3363129D1 (en) 1986-05-28

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