EP1158081B1 - Weaving loom drive, with no flywheel and friction clutch - Google Patents

Weaving loom drive, with no flywheel and friction clutch Download PDF

Info

Publication number
EP1158081B1
EP1158081B1 EP01112634A EP01112634A EP1158081B1 EP 1158081 B1 EP1158081 B1 EP 1158081B1 EP 01112634 A EP01112634 A EP 01112634A EP 01112634 A EP01112634 A EP 01112634A EP 1158081 B1 EP1158081 B1 EP 1158081B1
Authority
EP
European Patent Office
Prior art keywords
loom
drive unit
gearwheel
clutch
coaxial
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.)
Revoked
Application number
EP01112634A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1158081A1 (en
Inventor
Angelo Gallizioli
Corrado Volpi
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.)
Promatech SpA
Original Assignee
Promatech 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11445117&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1158081(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Promatech SpA filed Critical Promatech SpA
Publication of EP1158081A1 publication Critical patent/EP1158081A1/en
Application granted granted Critical
Publication of EP1158081B1 publication Critical patent/EP1158081B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

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 concerns a drive unit for weaving looms, and particularly a new type of drive unit, with no flywheel and friction clutch, to operate the main and auxiliary devices of a loom.
  • main shaft is meant the shaft which operates the essential weaving devices of the loom, namely the sley with the reed, the weave machine and, in gripper looms, the mechanisms to control the grippers, as well as any auxiliary devices, such as the yarn tensioning devices, the selvedge forming devices, and so on.
  • the known type looms are moreover provided with a secondary motor, connected to the weave machine by a respective clutch, which is used to carry out the shed search as well as to operate the whole loom in slow running conditions.
  • the weave machine is disconnected from the main shaft of the loom and the secondary motor can operate the weave machine in forward gear or in reverse gear, to carry out the search of the shed containing a faulty weft to be eliminated, or to perform other special weaving operations.
  • the angular position of the weave machine can thus be modified in respect of the angular position of the main shaft, namely in respect of the weft beating up and picking devices, the correct phase timing between said devices and the weave machine being easily obtained, for example thanks to clutches having only one possible angular coupling position.
  • both the main weaving devices and the weave machine are in constant mesh with the main motor through synchronous gearings, an insertion clutch further being optionally provided to disengage the weave machine only from the drive.
  • the auxiliary motor transmission further consists of a satellite gearing and said transmission overlaps the main motor transmission, to control - in backward motion - only the warp beam and the cloth beam without interfering with the loom main motion.
  • the weave machine works only in forward motion, and when it is necessary to search for a previous shed where a weaving fault occurred, the weaving programme of the weave machine is selected backwards through the electronic control device of said machine. This document does hence not disclose that the main motor driving the loom can separately control the weave machine and the weaving devices.
  • the object of the present invention is to simplify the driving systems of a weaving loom by using a single driving motor, while allowing the normal and correct performance of the different loom operations above described.
  • a drive unit for a weaving loom comprising a main shaft which operates the essential weaving devices of the loom, a driven shaft which operates a weave machine, and an electric motor for loom operation, characterized in that, said motor is connected to the main shaft through a first synchronous gearing comprising a disengageable clutch, and to the driven shaft through a second synchronous gearing in constant mesh.
  • the drive unit for looms of the present invention comprises a main motor 20 which operates the main shaft 21 of the loom through a train of gears comprising a pinion 22, coaxial to the motor 20, and a gearwheel 23.
  • the main shaft 21 merely operates the weaving devices - diagrammatically illustrated by the block 27 - namely the sley and, in the case of gripper looms, the mechanisms to control the grippers as well as any auxiliary weaving devices, for instance the selvedge forming devices.
  • the gearwheel 23 is connected to the main shaft 21 by means of an electro-mechanical front clutch 28, remote controlled by a driving unit 30 which is in turn controlled by a control unit 31.
  • the gearwheel 23 acts as an idle wheel.
  • the pinion 22 also operates a gearwheel 24 constantly meshing therewith, said gearwheel 24 being coaxial to and integral with a driven shaft 25.
  • the driven shaft 25 is connected to the weave machine - diagrammatically illustrated by the block 26 - and to any other auxiliary devices thereof.
  • said unit comprises - likewise as indicated with reference to the first embodiment thereof - the main motor 20 which operates the main shaft 21 of the loom through the train of gears comprising the pinion 22, coaxial to the motor 20, and the gearwheel 23. Also in this second embodiment, the main shaft 21 merely operates the aforementioned weaving devices 27, to which it is directly connected.
  • the gearwheel 23 is connected to a gearwheel 23b coaxial thereto, which is in turn connected to a gearwheel 24 by way of a synchronous gearing, for example a toothed belt, the gearwheel 24 being coaxial to and integral with the driven shaft 25 which operates the weave machine (block 26) as described heretofore.
  • a variant of this second embodiment is illustrated in fig. 2A.
  • the gearwheel 23 meshes directly with the gearwheel 24 connected to the driven shaft 25; when the clutch 28 is disengaged, the gearwheel 23 acts as an idle wheel in the kinematic mechanism transmitting the motion from the motor 20 to the weave machine 26.
  • said unit comprises two pinions 22a and 22b, the first one mounted on the output shaft of the motor 20 and the second one on an intermediate shaft 34, coaxial and aligned thereto, which is operated by the shaft of the motor 20 by way of an electromechanical front clutch 28a, fully similar to the clutch 28 of the previous embodiments.
  • the pinions 22a and 22b are respectively meshing with the gearwheels 24 and 23 connected, respectively, to the driven shaft 25 and to main shaft 21, so that - as it happens in the previous embodiments - the driven shaft 25 is always connected to the movement of the motor 20, while the main shaft 21 can be disconnected therefrom by disengagement of the clutch 28.
  • the angular positions of rotation of the gearwheel 23 and of the shaft 21 are respectively and instantly detected by means of position sensors 29a and 29b - for instance of the encoder type - which provide to send corresponding signals to the control unit 31; it is hence possible to connect the gearwheel 23 to the main shaft 21 in different angular positions, variable at choice, according to a program controlled by the control unit 31 according to the loom weaving conditions.
  • the sensor 29a is positioned upstream of the clutch 28 and the sensor 29b is positioned on the shaft 21 which, in this case, is connected to the gearwheel 23.
  • the angular shifting value will thus be reckoned directly between the output shaft of the motor 20 and the main shaft 21.
  • a third sensor 29c is finally provided close to the weave machine 26, to detect the momentary angular position of the driven shaft 25.
  • This arrangement hence allows to obtain a programmed automatic phase timing variation, possibly also during the weaving operation, between the loom weaving devices 27 and the weave machine 26 which determines the opening and closing movements of the shed.
  • the electromechanical clutch 28 allows a plurality of coupling positions, separated by a constant angular pitch; said angular pitch thus determines the minimum possible angular phase shifting value between the gearwheel 23 and the main shaft 21.
  • the drive unit for looms of the present invention does not comprise at all the flywheel and brake/friction clutch devices which are normally provided in the known type drive units for the purpose of making the loom rotation speed as constant as possible, independently from the cyclically variable stresses imparted by the weaving devices on the drive unit, and of allowing a fast stopping of the loom.
  • the main motor 20 is current controlled so as to continuously vary its driving torque and/or its direction of rotation. Said type of control is obtained by means of a driving unit 30, which operates the motor 20 and the electromechanical clutch 28 according to the control signals received from a control unit 31, so as to obtain different working conditions of said motor and thus of the loom.
  • the clutch 28 is in an engaged position and the motor 20 operates both the weaving devices 27 and the weave machine 26 at the wanted speed - thus, possibly, also at a slow speed - by suitably adjusting the torque of the motor 20 to keep the speed at the desired constant level. By inverting the torque direction, it is instead possible to obtain the required gradual or prompt braking effect.
  • the clutch 28 can be disengaged; then, by starting again the motor 20, it is possible to obtain the desired movements of the weave machine only, in forward and reverse gear, to carry out the search of the shed containing a faulty weft to be eliminated. Said operation should of course take place in a preselected angular range of the loom weaving devices 27, such that the grippers are external to the shed.
  • the gearwheel 23 is caused to rotate at low speed up to reaching the desired phase timing with the main shaft 21 of the loom, which timing is detected, as said above, by means of the sensors 29.
  • the actual condition of engagement/disengagement of the electromechanical front clutch 28 is detected by means of a proximity switch 32 connected to the control unit 31.
  • a proximity switch 32 connected to the control unit 31.
  • the position of the clutch 28 can be reckoned by sending a torque pulse to the motor 20 and simultaneously reading the position sensors 29.
  • a safety brake 33 is also provided to keep the loom and the weave machine in a blocked position during the operations to eliminate faulty wefts and in case of failure of the electric current supply, so as to prevent any undesired movement of the loom under the action of elastic forces imparted by the weave machine or by the warp yarns.
  • a clutch brake or a blocking brake 35 acts moreover during the operations of shed search, said brake acting on the main shaft 21 of the loom in order to oppose the residual potential energy of the weaving devices 27.
  • the drive unit according to the present invention has fully reached the intended object, seen that it allows to perform with a single motor - without making use of any complicated structure - any possible desired operations of the loom components, thanks to the fact that said motor is always connected to the weave machine, while it can be connected at will to the loom weaving devices by automatically setting the required phase timing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Woven Fabrics (AREA)
  • Electrophotography Configuration And Component (AREA)
EP01112634A 2000-05-25 2001-05-24 Weaving loom drive, with no flywheel and friction clutch Revoked EP1158081B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI001157 2000-05-25
IT2000MI001157A IT1317570B1 (it) 2000-05-25 2000-05-25 Gruppo di comando di un telaio di tessitura,privo di volano e frizione

Publications (2)

Publication Number Publication Date
EP1158081A1 EP1158081A1 (en) 2001-11-28
EP1158081B1 true EP1158081B1 (en) 2005-01-19

Family

ID=11445117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01112634A Revoked EP1158081B1 (en) 2000-05-25 2001-05-24 Weaving loom drive, with no flywheel and friction clutch

Country Status (6)

Country Link
EP (1) EP1158081B1 (it)
AT (1) ATE287465T1 (it)
DE (1) DE60108443T2 (it)
ES (1) ES2231343T3 (it)
HK (1) HK1041909A1 (it)
IT (1) IT1317570B1 (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2838752B1 (fr) 2002-04-22 2005-02-25 Snecma Moteurs Procede de formation d'un revetement ceramique sur un substrat par depot physique en phase vapeur sous faisceau d'electrons
ITMI20030817A1 (it) * 2003-04-18 2004-10-19 Promatech Spa Innesto di marcia lenta e ricerca del passo a flusso
ITVI20040129A1 (it) * 2004-05-25 2004-08-25 Smit Spa Dispositivo di comando per telai tessili
BE1016108A6 (it) 2004-07-05 2006-03-07 Picanol Nv
CN101058917B (zh) * 2007-05-26 2010-11-03 万祖干 离合器分离型大扭矩织机倒综机构
IT1397372B1 (it) 2009-12-30 2013-01-10 Promatech Spa Unita' di comando per telai tessili ad elevata flessibilita' di uso, munita di dispositivo di controllo di sicurezza rispetto a possibili sfasamenti critici degli organi meccanici mobili e procedimento di tessitura che utilizza tale unita'
CN102493108A (zh) * 2011-12-07 2012-06-13 恒天重工股份有限公司 一种织机的直接驱动传动装置
CN103849991B (zh) * 2014-02-20 2015-12-23 浙江万利纺织机械有限公司 一种开关磁阻电机驱动的织机传动与织机位置自动标定系统
CN108866760B (zh) * 2018-09-13 2020-09-22 山东日发纺织机械有限公司 剑杆织机自动寻纬装置
CN109338575B (zh) * 2018-09-20 2021-06-15 西安工程大学 一种基于摩擦力反馈的上下织轴协同方法
CN116123262B (zh) * 2023-01-10 2023-08-08 浙江泰坦股份有限公司 一种织机传动装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3311670C2 (de) * 1983-01-18 1986-05-22 Textilma Ag, Hergiswil Webmaschine

Also Published As

Publication number Publication date
ES2231343T3 (es) 2005-05-16
ITMI20001157A1 (it) 2001-11-25
IT1317570B1 (it) 2003-07-09
ATE287465T1 (de) 2005-02-15
ITMI20001157A0 (it) 2000-05-25
DE60108443T2 (de) 2005-06-23
EP1158081A1 (en) 2001-11-28
DE60108443D1 (de) 2005-02-24
HK1041909A1 (en) 2002-07-26

Similar Documents

Publication Publication Date Title
EP1158081B1 (en) Weaving loom drive, with no flywheel and friction clutch
US4564050A (en) Method for starting the operation of a loom
EP0080581B1 (en) Weft-bar prevention system for a loom
US7857011B2 (en) Drive for a web machine
EP0514959B1 (en) Method and device for driving a weaving machine during the slow motion
EP1245707B1 (en) Multi-position front clutch having a locking device of the movable element in a control drive of a weaving loom
EP0456274B1 (en) Warp tension control apparatus
US3160177A (en) Irregular warp feed mechanism
US3237648A (en) Weaving machine
US4448220A (en) Method for operating a two-phase gripper loom and two-phase gripper loom for performance of the method
KR20190045360A (ko) 직조기용 제어 시스템 및 딥 러닝 방법
US3613742A (en) Stop motions for looms
US5404916A (en) Loom method and apparatus for avoiding beat up markings in a fabric
US2639732A (en) Weaving machinery and control
US3661185A (en) Driving devices for loom shed-forming mechanisms
EP0930387B1 (en) Improved mechanism to select the slow running condition and find the pick in looms
EP1669483A1 (en) Method for adjusting pile-warp tension
JPH0341577B2 (it)
US4724872A (en) Method for the control of a weaving loom and weaving loom for implementing such method
EP0241076B1 (en) Drivesystem for weaving looms
US3568725A (en) Dobbies
CN217628813U (zh) 一种具有防轧手装置的OptiMax剑杆织机
EP0086999B1 (en) Device for synchronizing the shedding device in a loom
US3570547A (en) Ground warp shifting means for terry looms
US3875972A (en) Pick finder connected to color selector

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20011102

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20031106

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050119

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050119

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050119

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050119

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60108443

Country of ref document: DE

Date of ref document: 20050224

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050419

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050419

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050419

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWAELTE SCHAAD, BALASS, MENZL & PARTNER AG

REG Reference to a national code

Ref country code: HK

Ref legal event code: GR

Ref document number: 1041909

Country of ref document: HK

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2231343

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050524

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050524

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050524

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050531

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: STUDIO TECNICO DI PROTOTIPIZZAZIONE VIRTUALE

Effective date: 20051019

ET Fr: translation filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050619

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20080530

Year of fee payment: 8

Ref country code: DE

Payment date: 20080612

Year of fee payment: 8

Ref country code: ES

Payment date: 20080522

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080514

Year of fee payment: 8

Ref country code: BE

Payment date: 20080529

Year of fee payment: 8

PLBP Opposition withdrawn

Free format text: ORIGINAL CODE: 0009264

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080514

Year of fee payment: 8

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

27W Patent revoked

Effective date: 20090207

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Effective date: 20090207

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080516

Year of fee payment: 8