US3805849A - Driving device for weaving looms - Google Patents

Driving device for weaving looms Download PDF

Info

Publication number
US3805849A
US3805849A US00229779A US22977972A US3805849A US 3805849 A US3805849 A US 3805849A US 00229779 A US00229779 A US 00229779A US 22977972 A US22977972 A US 22977972A US 3805849 A US3805849 A US 3805849A
Authority
US
United States
Prior art keywords
spool
shaft
flywheel
driving device
crank
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
US00229779A
Other languages
English (en)
Inventor
B Steverlynck
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
Application granted granted Critical
Publication of US3805849A publication Critical patent/US3805849A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
    • F16D67/02—Clutch-brake combinations
    • F16D67/06—Clutch-brake combinations electromagnetically actuated
    • 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/34—Weft stop motions

Definitions

  • ABSTRACT pertains to a driving device for weaving looms, consisting in a flywheel driven by a motor, between this flywheel and a shaft, an electromagnetic coupling and between this shaft and the loom cranksfat proper, a planetarydrive, the crank-shaft carrying the satellite cog-wheels.
  • a driving device which consists essentially of a flywheel driven by a motor; between this flywheel and a shaft, an electromagnetical coupling; and between this shaft and the loom crank-shaft proper, a planetary drive, in which the crank-shaft carries the satellite cogwheels.
  • this device is further completed by a brake and a planetary drive, which enables to achieve a back run at reduced speed.
  • FIG. 1 shows half in lateral view and half in axial section a driving device according to the invention
  • FIG. 2 shows a programming drum in axial section
  • FIG. 3 shows a block-diagram of the sterring unit
  • FIG. 4 shows a block-diagram of the capacity unit
  • FIG. 5 shows a diagram of the shuttle control mount-
  • the steering device shown in the drawings consists of a coupling proper, a programming drum, a steering unit and a capacity unit. These constitutent parts are described hereunder one by one, with specification of their working.
  • a free rotating flywheel 3, driven by the loom motor 3a via belts 4, is set up.
  • This flywheel 3 is directly connected with a rotor 5, which rotates with a slight air cleft around a fixed coupling spool 6.
  • Rotor 5, on one side thereof, is fitted with a brake coat 7.
  • a crown 9 interlocks and an annular disc 10 .made of soft iron, is attached onto it.
  • crank-shaft 11 At one end of crank-shaft 11 a satellite carrier 12 is attached, on which three satellite cog-wheels 13 rotating freely are set up. The latter interlock, on the one hand, with a crown I4, and on the'other hand,.with a cog-wheel .15 secured'on shaft 2.
  • shaft 2 When spool 6 is energised, shaft 2 is driven at the same speed as the flywheel 3, while the crank shaft 11 is set in a revolving Start-stop motion at a speed ratio of A or il/5 according to the choice of the satellites l3 and the crown 14. Brake.
  • a spool 16 is set up whcih is firmly connected with housing 1 and is provided with a braking coat 17. When this spool 16 is energised, shaft 2 is braked.
  • a ring 24 made of magnetical material which, on the one hand, carries asmall magnet 25 and, on the other hand, two annular metal discs 26 and 27 with hollowed part. These discs 26 and 27 are adjustable on thecircumference of ring 24 and are clinged in the desired position by a closing part 28, which carries a disc 29 divided into 360.
  • a fixed arrow 30 enables to read the adjusted angle position.
  • On the fixed outer ring 31 one or several adjustable spools 32 are set up. During the weaving cycle, the small magnet 25 passes every time along the spool (s) 32 at a pre-adjusted crank-shaft angle, thus inducing a tension in the same.
  • the proximity switches 33 and 34 are positioned, consistingof oscillators which can be clamped in a given area due to the proximity of not hollowed parts of the discs 26 and 27. During every revolution of the crank-shaft these oscillators are thus damped periodically on a certain numberof degrees and set free again. Steering unit.
  • the steering unit is equipped with five pressure key switches 35 start, 36 stop,” 37 backward position 38 slow forward position and 39 single shot.
  • the bistable sets 40, 41 and 42 take a preferential position, so that the outlet to the coupling and brake is at 0 level. This energises brake spoolv 16, while the coupling spools 6 and 22 remain currentless. The loom is then in braking position.
  • bistable 41 A On pushing in switch 35, a 0 pulsion is added via diode 43 to bistable 41 A, which is tied up at outlet 0 of bistable 40 D availableon condition that bistable40 is not steering. This brings the 0 outlet of bistable 41 C on 1 and this position is supplied via diode 44 to the brake unit which is put out of action at once.
  • the same signal l is delivered via zener diode 45 in order to steer the coupling spool on full current and to enable the loom to start quickly. Simultaneously, the 0 signal is delivered via diode 46 to bistable 47 B, whose outlet D is thus carried to 1.
  • bistable 41 arrive at 0sets up an 0 level on switch 36 for performing the stoppage. If switch 36 is pusched in now, this "0 value comes at the inlet A of bistable 47 via diode 48 and sets the outlet D thereof on O.”
  • transistor 49 becomes conductive and transmits the 0 level prevailing on switch 36 via diode to bistable 41 B, which tips back.
  • Outlet C of bistable 41 is thus brought to nil, below the zener tension of zener diode 45, causing coupling spool 6 to become currentless. Simultaneouslydiode 44 blocks up and brake 16 comes into action.
  • bistable multi 42 is connected with its outlet D, via diode 59 with the braking unit 16 and via zener diode 60 with a steering step 61. In the preferential position (rest position) of bistable 42, a 0 level is originated at its level D. In order to allow bistable 42 to tip, it is necessary to supply an 0 signal to B.
  • the loom runsslowly forward as long as oscillator 33 is in the free area or hollowed part of disc 26. At a given moment, oscillator 33 is damped by disc 26. This causes transistor 69 to become currentless and a level l to come via zener diode 64 at the basis of transistor 65, which will supply current andvdeliver a 0 level via diode 67 to bistable 42 A. Its outlet D comes to 0," causing brake 16 to come. into action and steering step 61 to become currentless. The same null level of transistor 65 and prevents the loom, upon new pushing in of switch 38, from continuing to run. It is possibe to tip bistable 42 only after having eliminated the damping of oscillator 33 by one of the other functions which get the loom moving.
  • the outlet D of a monostable multi 70 is connected to bistable 47 A via a diode 71 and to bistable 41 A via a diode 72.
  • 47 A can be brought to 0, provided that transistor 73 is conductive, which is possible only in case no 0 level is supplied at the basis of transistor 73, via the locking diodes 74, and 76, which means that the loom is at a stop.
  • a 0 level is originated during the unstable position at outlet 70 D which, on the one hand, delivers a starting impulse via diode 72 to bistable 41 A and, on the other hand, a stopping impulse via diode 71 to bistable 47 A.
  • Warp controller i The switch 73 which can be controlled by a wellknown warp controller, has exactly the same action as switch 36.
  • the pick controller will be preferably of the same type as described in another application handed in by the Applicant. It includes an oscillator 74with transistor 75'. As long as the latter does not conduct any current, a 1 tension comes via the zener diode 76 which keeps transistor 77 in conduction, thus bringing a level 0 on diode 78. In case a pick rupture is detected, the basis of transistor 77 receives a signal 0 and falls out of conduction; the leap l at diode 78 is delivered at the inlet 41 A, causing the loom to come to a stop.
  • the pick controller is put out of action during the first shot by means of a slowing-down element, for instance the monostable multivibrator 79, which in case of starting via diode 80, is tipped out of its stable position and which, during a lapse of time corresponding to the crank-shaft revolution, forms a 1" level at 79 C which is delivered at the basis of transistor 77.
  • a slowing-down element for instance the monostable multivibrator 79, which in case of starting via diode 80, is tipped out of its stable position and which, during a lapse of time corresponding to the crank-shaft revolution, forms a 1" level at 79 C which is delivered at the basis of transistor 77.
  • transistor 88 During the forward run the emitter side of transistor 88 is at 0." When spool 86 is induced, transistor 88 becomes conductive during the impulse and supplies the 0 level via diode 89 at the inlet A of bistable 90.
  • a normally closed contact 96 is connected from a 24 V relay which is directly linked up with a 18 V secondary winding of the feeding transformer. in normal operation, this contact is therefore open. As soon as the current falls, 96 closes, causing transistor 49 to be brought to 0 level.
  • the whole electronic connection has sufficient reserve through unloading of condensers (see further on: capacity unit) to allow the normal stop function to work at the right moment and to make sure in this way that even in case of current interruption the shuttle 84 is in one of the boxes 97, 98 at the moment when the loom comes to a stop.
  • Transistor 98 is locked by a negative tension which arrives at its basis via resistance 100.
  • a current can then flow through resistances 101 and 102, basis and emitter of transistor 103, resistance 104 and condenser 105.
  • the collector current originated accelerates the loading of condenser 105 up to the potential, while the UJ. transistor 106 becomes conductive.
  • the current impulse originated in spool 107 delivers a positive im pulse, to the secondary side on the gate of thyristors 108 and 109, which, when a positive tension comes on their anode, alternatively feed braking spool 16 as steered rectifiers.
  • condenser 117 is loaded via resistance 118 and diode 119. Condenser 117 forms a power reserve which will be used upon breaking of the loom. As soon as one of the sets 40, 41, 42 tips, this originates a 0 level which causes transistors 113, 111 and to become currentless and a coupling to be cancelled. Simultaneously the basic current of transistor 99 is interrupted via diodes 110, 44 or 59, causing the collector current to be cancelled by leaps and the basic current of transistor 103 can be originated again via resistances 101, 102, 104 and condenser 105.
  • the sudden potential leap via resistance 101 is transmitted to condenser 120, which delivers a positive 7 pulse on the emitter of the U.J. transistor 121.
  • a current leap is originated via transistor 121 in spool 122, which originates a positive pulse in the secondary.
  • the latter opens the gate of thyristor 123, causing condenser 117 to unload in braking spool 16. Meanwhile the maintenance current is supplied by thyristors 108 and 109, as described hereabove.
  • a driving device comprising a first planetary drive on said crank-shaft, a flywheel driven by said motor, an intermediate shaft, an electromagnetic coupling between said flywheel and said intermediate shaft, said electromagnetic coupling consisting of a fixed ring-shaped coupling spool positioned about said intermediate shaft, a rotor operatively connected with said flywheel, a ring-shaped soft iron disc located close to a part of said motor and provided with a braking surface, a crown linked to said disc and a fixed cog wheel carried by said intermediate shaft and interlocked with said crown and a stationary braking spool on the other side of said disc, wherein the ratio between the rotary speed of said crank-shaft and the rotary speed of said flywheel is betwen 4 to l and 5 to l.
  • crank-shaft is equipped with a programming drum, consisting essentially of a ring firmly linked up with the crank-shaft, on which at least on hollowed ring-shaped disc is adjustably positioned and which furthermore carries a small magnet; of a fixed ring carrying at least one spool which is periodically influenced by the small magnet, and of at least one remote switch opposite to the said ring-shaped disc.
  • a programming drum consisting essentially of a ring firmly linked up with the crank-shaft, on which at least on hollowed ring-shaped disc is adjustably positioned and which furthermore carries a small magnet; of a fixed ring carrying at least one spool which is periodically influenced by the small magnet, and of at least one remote switch opposite to the said ring-shaped disc.
  • a driving device accordng to claim 1, comprising an electronic steering unit steering said spools.
  • a driving device comprising a capacity unit controlled by said steering unit and energizing said spools.
  • Driving unit according-to claim 1, wherein said braking spool is energized when the speed of the shuttle does not tally with a predetermined limit value.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Looms (AREA)
  • Retarders (AREA)
US00229779A 1971-03-03 1972-02-28 Driving device for weaving looms Expired - Lifetime US3805849A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE763697A BE763697A (nl) 1971-03-03 1971-03-03 Aandrijfinrichting voor weefgetouwen.

Publications (1)

Publication Number Publication Date
US3805849A true US3805849A (en) 1974-04-23

Family

ID=3857799

Family Applications (1)

Application Number Title Priority Date Filing Date
US00229779A Expired - Lifetime US3805849A (en) 1971-03-03 1972-02-28 Driving device for weaving looms

Country Status (7)

Country Link
US (1) US3805849A (nl)
BE (1) BE763697A (nl)
DE (2) DE7206636U (nl)
ES (1) ES400419A1 (nl)
FR (1) FR2128385B1 (nl)
GB (1) GB1369516A (nl)
SU (1) SU499817A3 (nl)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100942A (en) * 1975-09-30 1978-07-18 Ruti Machinery Works Ltd. Drive, control and monitoring device for looms
US4201280A (en) * 1977-03-09 1980-05-06 Adolph Saurer Limited Clutch-brake unit for the main shaft of a loom
US4387794A (en) * 1979-12-04 1983-06-14 Zahnradfabrik Friedrichshafen Aktiengesellschaft Single-surface electromagnetically operated clutch/brake unit
US4553569A (en) * 1983-04-13 1985-11-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control method of stopping a loom at a predetermined position thereof
US4570681A (en) * 1982-10-12 1986-02-18 Nissan Motor Co., Ltd. Apparatus for stopping weaving machine at predetermined position
DE19828154B4 (de) 1997-06-25 2013-05-08 Imra America, Inc. Auf Multimodefasern basierende Einzelmodenverstärker

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD153612A1 (de) * 1980-10-16 1982-01-20 Gunter Jost Antriebsvorrichtung fuer webmaschinen
DE3265479D1 (en) * 1981-12-16 1985-09-26 Sulzer Ag Control device for correcting mispicks
BE1001629A3 (nl) * 1988-05-03 1989-12-19 Picanol Nv Elektromagnetische koppeling-rem-eenheid voor weefmachines.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR538575A (fr) * 1921-07-21 1922-06-12 Tissages Et Ateliers De Constr Mouvement de marche arrière automatique pour métiers à tisser
US2753894A (en) * 1953-11-10 1956-07-10 Sidney Blumenthal & Co Inc Loom drive with means for shockless stopping
US3181573A (en) * 1961-07-06 1965-05-04 Loepfe Ag Geb Shuttle control for looms
FR1541187A (fr) * 1967-09-21 1968-10-04 Textilipari Ki Dispositif pour le contrôle de la force de chasse des navettes et de l'entrée de la navette dans la position finale voulue sur les métiers à tisser
US3565126A (en) * 1968-02-16 1971-02-23 Rueti Ag Maschf Arrangement on a loom for monitoring the weft insertion member
US3570550A (en) * 1968-10-17 1971-03-16 North American Rockwell Control system for looms
US3613742A (en) * 1968-03-02 1971-10-19 Northrop Weaving Machinery Ltd Stop motions for looms

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB582339A (en) * 1944-04-12 1946-11-13 Wilson & Longbottom Ltd Improvements in loom drive reversing motions
BE705153A (nl) * 1967-07-06 1968-03-01

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR538575A (fr) * 1921-07-21 1922-06-12 Tissages Et Ateliers De Constr Mouvement de marche arrière automatique pour métiers à tisser
US2753894A (en) * 1953-11-10 1956-07-10 Sidney Blumenthal & Co Inc Loom drive with means for shockless stopping
US3181573A (en) * 1961-07-06 1965-05-04 Loepfe Ag Geb Shuttle control for looms
FR1541187A (fr) * 1967-09-21 1968-10-04 Textilipari Ki Dispositif pour le contrôle de la force de chasse des navettes et de l'entrée de la navette dans la position finale voulue sur les métiers à tisser
US3565126A (en) * 1968-02-16 1971-02-23 Rueti Ag Maschf Arrangement on a loom for monitoring the weft insertion member
US3613742A (en) * 1968-03-02 1971-10-19 Northrop Weaving Machinery Ltd Stop motions for looms
US3570550A (en) * 1968-10-17 1971-03-16 North American Rockwell Control system for looms

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100942A (en) * 1975-09-30 1978-07-18 Ruti Machinery Works Ltd. Drive, control and monitoring device for looms
US4201280A (en) * 1977-03-09 1980-05-06 Adolph Saurer Limited Clutch-brake unit for the main shaft of a loom
US4387794A (en) * 1979-12-04 1983-06-14 Zahnradfabrik Friedrichshafen Aktiengesellschaft Single-surface electromagnetically operated clutch/brake unit
US4570681A (en) * 1982-10-12 1986-02-18 Nissan Motor Co., Ltd. Apparatus for stopping weaving machine at predetermined position
US4553569A (en) * 1983-04-13 1985-11-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control method of stopping a loom at a predetermined position thereof
DE19828154B4 (de) 1997-06-25 2013-05-08 Imra America, Inc. Auf Multimodefasern basierende Einzelmodenverstärker
DE19828154C5 (de) * 1997-06-25 2017-08-10 Imra America, Inc. Auf Multimodefasern basierende Einzelmodenverstärker

Also Published As

Publication number Publication date
DE2208387A1 (de) 1972-09-14
ES400419A1 (es) 1975-01-01
DE2208387C3 (de) 1975-09-04
GB1369516A (en) 1974-10-09
BE763697A (nl) 1971-08-02
DE2208387B2 (de) 1975-01-30
FR2128385A1 (nl) 1972-10-20
FR2128385B1 (nl) 1974-08-02
SU499817A3 (ru) 1976-01-15
DE7206636U (de) 1972-06-22

Similar Documents

Publication Publication Date Title
US3805849A (en) Driving device for weaving looms
KR100275240B1 (ko) 방사 공급 장치
CS225818B2 (en) The regulation of the operation of one working element/at least/of the loom and the necessary device
US1980294A (en) Automatic stop mechanism for machines
US4298107A (en) Brake system for a textile machine
US3802467A (en) Warp unwinder for weaving looms
ES483644A1 (es) Un mecanismo para detener automaticamente la operacion de tejido de un telar circular
US4657051A (en) Weaving machine
GB1099725A (en) Improvements relating to warp let-off control devices for weaving looms
US2392068A (en) Electric brake
US1991927A (en) Electrically controlled screwcutting machine
US2816187A (en) Indicating device
US1943161A (en) Mechanism for electrically controlling mechanical motion
GB1209728A (en) Solenoid control circuit
US2924064A (en) hedtmann etal
KR830001259Y1 (ko) 직기의 구동장치
SU1222725A1 (ru) Привод ткацкого станка
DE3363129D1 (en) Device for synchronizing the shedding device in a loom
US4541458A (en) Electromechanical control means for controlling movement sequences in a textile machine
US1609305A (en) Electrically-operated automatic throwing-out-of-gear mechanism for braiding machines
US958974A (en) Fly-wheel for warping and balling machines.
US2414174A (en) Control for loom handwheels
US892783A (en) Bobbin-winder.
US1130599A (en) Take-up motion of looms for weaving.
JPS602208Y2 (ja) 織機における経糸送出装置