EP0521244B1 - Webmaschine - Google Patents

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Publication number
EP0521244B1
EP0521244B1 EP92105253A EP92105253A EP0521244B1 EP 0521244 B1 EP0521244 B1 EP 0521244B1 EP 92105253 A EP92105253 A EP 92105253A EP 92105253 A EP92105253 A EP 92105253A EP 0521244 B1 EP0521244 B1 EP 0521244B1
Authority
EP
European Patent Office
Prior art keywords
drive
weaving loom
servomotor
loom according
mechanical weaving
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
EP92105253A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0521244A1 (de
Inventor
Friedrich Wilhelm Bassing
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.)
Juergens Maschinenbau & Co KG GmbH
Original Assignee
Juergens Maschinenbau & Co KG GmbH
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 Juergens Maschinenbau & Co KG GmbH filed Critical Juergens Maschinenbau & Co KG GmbH
Publication of EP0521244A1 publication Critical patent/EP0521244A1/de
Application granted granted Critical
Publication of EP0521244B1 publication Critical patent/EP0521244B1/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
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/60—Construction or operation of slay

Definitions

  • the invention relates to a weaving machine, in particular for weaving screens, with a shutter drive, a shaft drive and a shooter drive.
  • Such weaving machines are used for the production of fabrics of different widths and lengths.
  • the productivity of these machines is largely determined by the number of blows. This cannot be increased arbitrarily, since sufficient time must be available for the insertion of the weft thread between the warp threads.
  • dimensions result that are longer in the direction of the weft threads than in the direction of the warp threads. This does not have an impact on the dimensioning of the weaving machines, which must have weaving widths of more than 30 m for such applications.
  • Sufficient time must be available for the weaving shop to insert these long weft threads during a working cycle. The maximum possible number of strokes is limited accordingly.
  • the mass of the sley has to be moved, which also increases approximately proportionally with the width of the weave and thus additionally limits the possible number of blows.
  • EP 0 321 974 A1 discloses a drive for a weaving machine for a weaving machine, with one by one Complementary curve drive toggle lever, which is articulated on the one hand on the machine frame and on the other hand on the loom support.
  • the complementary curve drive imposes a non-uniform pendulum motion on the sley, which leaves more time for weft insertion during a work cycle.
  • a disadvantage of the cam controls of the shutter drives is that when the number of impacts increases, the rollers tend to lift off the cam disc and, as a result of the inertia, disadvantageous backlashes occur.
  • the object of the invention is to increase the productivity of a weaving machine.
  • the shutter drive has a program-controlled servomotor, a self-locking gear being arranged between the servomotor and the shutter.
  • a self-locking transmission is represented, for example, by the known cam drive.
  • the entire cam drive can also be replaced by a worm gear with possibly further gear stages.
  • the work cycles of the sley can be arbitrarily influenced by simple reprogramming.
  • the sley can be driven symmetrically. Inertial twisting of the sley is avoided.
  • the measures have the same purpose in that means for synchronizing the two drives and means for comparing the servomotor torques are provided. Overall, this improves the precision of the movements.
  • the loom has sensors, which are preferably designed as absolute value decoders.
  • the other movements such as those of the dobby and the shooter, can thus be locked with the weaving movement via the control and operational disruptions avoided.
  • a further optimization of the motion sequences can be achieved if the shaft drive also has a servo motor.
  • a drive is connected as a master drive.
  • the deviations to be determined by the control as The difference between the setpoint and actual value for the generation of corresponding correcting actuating variables always takes place in relation to the master drive.
  • the interface to the electronic control can be realized with less means if the servomotor is designed as an electrical servomotor.
  • the servomotor is designed as a hydraulically driven servomotor, preferably with an axial piston pump.
  • the axial piston pump has the advantage that a self-locking gear can be dispensed with.
  • the object is also achieved in that a program-controlled servo motor is provided in a loom as a drive for a sley in connection with a self-locking gear.
  • the weaving machine shown in FIG. 1 has a frame wall 1, a crankshaft 2, crank connecting rods 3, shop shooters 4, a weaving drawer 5 and a reed 6, through which the warp threads 7 are drawn in.
  • the woven fabric 8 is exactly one of the three fabric trees 9a, 9b and 9c by a fabric tree regulator, not shown, for each working cycle of the weaving machine deducted the same piece constantly.
  • a dobby also not shown, moves the heald frames 10a and 10b with the strands 11a and 11b, through the eyes of which the warp threads 7 run and thereby form the shed 12, into which the weft thread is inserted by a shooter, not shown.
  • support element 13 is provided, via which the warp threads 7 coming from the warp beam 15 are guided.
  • the warp beam 15 is mounted in bearings 19 and is driven by a motor, not shown.
  • crankshaft 2 The drive for crankshaft 2 is shown schematically within the break line of frame wall 1.
  • spur gear 14 is firmly connected, which meshes with pinion 16.
  • Pinion 16 is in turn firmly connected to worm wheel 18, in which worm 20 engages.
  • crankshaft 2 The position of the crankshaft 2 is removed via a gearwheel, not shown, which is arranged coaxially to the crankshaft 2 and is firmly connected to it.
  • toothed belt 23 On this toothed wheel and a further toothed wheel 24, toothed belt 23 is applied in a meshing manner, to which mark 25 is fastened.
  • the mark 25 is recognized by the sensor 26 and converted into a corresponding signal, which is forwarded to the control system, also not shown, via lines (not shown).
  • the arrangement described is provided on both sides of the loom.
  • One drive is connected as a master drive and the other as a slave drive.
  • the even introduction of torque into the crankshaft is monitored by comparing the motor currents and, if necessary, readjusted by the control.
  • the exact synchronization of the drives on both sides is made possible by the control with the aid of the signals from the sensors 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP92105253A 1991-07-05 1992-03-27 Webmaschine Expired - Lifetime EP0521244B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4122249 1991-07-05
DE4122249A DE4122249C1 (enrdf_load_stackoverflow) 1991-07-05 1991-07-05

Publications (2)

Publication Number Publication Date
EP0521244A1 EP0521244A1 (de) 1993-01-07
EP0521244B1 true EP0521244B1 (de) 1995-07-12

Family

ID=6435483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105253A Expired - Lifetime EP0521244B1 (de) 1991-07-05 1992-03-27 Webmaschine

Country Status (4)

Country Link
US (1) US5285820A (enrdf_load_stackoverflow)
EP (1) EP0521244B1 (enrdf_load_stackoverflow)
JP (1) JPH05179539A (enrdf_load_stackoverflow)
DE (2) DE4122249C1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4308243A1 (de) * 1993-03-11 1994-09-15 Juergens Masch Gmbh & Co Projektil-Breitwebmaschine
DE19924627C1 (de) * 1999-05-28 2001-05-23 Dornier Gmbh Lindauer Verfahren zur Steuerung des Bewegungsablaufes der Webblattwelle einer Webmaschine
DE102004045208A1 (de) * 2004-09-17 2006-04-06 Siemens Ag Webmaschine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613693A (en) * 1950-02-17 1952-10-14 Grosvenor Dale Company Inc Loom
GB1327253A (en) * 1970-11-16 1973-08-22 Mollart Eng Co Ltd Machine tools having interchangeable tool carrying units
US3822726A (en) * 1972-04-13 1974-07-09 Rosenfors Bruk Ab Sley driving system with single or double contact for power looms or hand looms
US3964524A (en) * 1975-01-08 1976-06-22 Wayne H. Coloney Co., Inc. Loom lay drive linkage
FR2359917A1 (fr) * 1976-07-26 1978-02-24 Gagey Etienne Procede et dispositif pour la commande d'un battant de metier a tisser
JPS60151346A (ja) * 1984-01-18 1985-08-09 住友電気工業株式会社 高密度織布の緯打ち装置を備える織機
JPS6410088U (enrdf_load_stackoverflow) * 1987-07-08 1989-01-19
US4986315A (en) * 1987-08-12 1991-01-22 Fred Borisch Weaving machine with a synchronously or independently operable mechanical dobby
DE3743661A1 (de) * 1987-12-22 1989-07-06 Wangner Gmbh Co Kg Hermann Webladenantrieb fuer eine webmaschine
DE58901071D1 (de) * 1988-07-08 1992-05-07 Sulzer Ag Frottierverfahren und webmaschine mit florbildungsorganen.
JP2975387B2 (ja) * 1990-02-01 1999-11-10 株式会社豊田自動織機製作所 筬の駆動方法及び装置

Also Published As

Publication number Publication date
US5285820A (en) 1994-02-15
JPH05179539A (ja) 1993-07-20
DE59202856D1 (de) 1995-08-17
DE4122249C1 (enrdf_load_stackoverflow) 1992-09-24
EP0521244A1 (de) 1993-01-07

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