EP3512992A1 - Système de commande pour métiers à tisser et procédé d'apprentissage profond - Google Patents

Système de commande pour métiers à tisser et procédé d'apprentissage profond

Info

Publication number
EP3512992A1
EP3512992A1 EP17809049.4A EP17809049A EP3512992A1 EP 3512992 A1 EP3512992 A1 EP 3512992A1 EP 17809049 A EP17809049 A EP 17809049A EP 3512992 A1 EP3512992 A1 EP 3512992A1
Authority
EP
European Patent Office
Prior art keywords
control system
machine
weaving
shedding
control
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
EP17809049.4A
Other languages
German (de)
English (en)
Other versions
EP3512992B1 (fr
Inventor
Luciano Corain
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.)
Santex Rimar Group SRL
Original Assignee
Santex Rimar Group SRL
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 Santex Rimar Group SRL filed Critical Santex Rimar Group SRL
Publication of EP3512992A1 publication Critical patent/EP3512992A1/fr
Application granted granted Critical
Publication of EP3512992B1 publication Critical patent/EP3512992B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/005—Independent drive motors
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/007—Loom optimisation

Definitions

  • This invention relates to a control system for looms for warp and weft weaving, in particular, for rapier type looms in which the shedding machine and the weaving machine each actuate relative devices the phasing of which must be suitably coordinated and in such a way as to avoid interferences and safeguard the mechanical condition of moving parts; the phasing between the two parts has operational margins within which the mutual position may be varied in order to optimize the operation of the loom.
  • the invention relates to an integrated command and/or control system for the individual actuation of the shedding machine and the weaving machine which together constitute a loom suitable for carrying out the cycle for inserting the weft, which, when repeated in sequence, forms the fabric in the loom.
  • Types of warp and weft threads, warp/weft weave, fabric coverage factor and width of fabric are some of the characteristics which require specific adjustments of the machine in order to optimize the productivity and the quality in each application.
  • control of a weaving loom comprises one or motors and a series of mechanisms which allow the following functions of the loom to be performed:
  • the control includes a pair of motors, of which a first motor is used to control the machine at standard forward speed during operation, a second motor is used for low speed reverse movement during the de-weaving phase, and a toothed electromagnetic coupling with an engagement position, which ensures a predetermined phasing between the machine and the shedding mechanism in both directions of movement.
  • the phasing during the forward and reverse movements can be modified by intervening manually on the mechanical connections between the various parts of the loom.
  • Another prior art solution comprises the use of a series of gears for controlling the two parts of the frame (machine and shedding mechanism), which can be coupled in various combinations by means of the axial sliding of one or more of the above-mentioned gears on a dedicated shaft, and control devices for the correct coupling between the gears.
  • a third solution of conventional type uses a transmission line comprising a brushless motor, a flywheel, a brake/clutch and a mechanical control of the shedding machine from the control shaft.
  • the phasing between the machine and shedding mechanism is fixed and can be varied manually by intervening on the mechanical parts.
  • the members for transporting the weft are disconnected from the rest of the machine, which may be actuated with slow reverse movement for de- weaving.
  • a fourth prior art solution comprises the use of a main control motor connected to parallel control shafts, of the machine and the shedding mechanism, respectively, and the control shaft of the machine is connected to the machine and to the shedding mechanism by means of a clutch and a series of position sensors for the phasing between the two part of the loom.
  • the aim of this invention is to make a control system for weaving looms and, in particular, for rapier looms, which allows the command and control of the individual actuation of various mechanisms which intervene in the cycle for inserting the weft, with variable mutual phasing, according to the technological needs of the weaving and the operational trend of the machine, with the possibility of individual variation of the movement of each mechanism connected to the control system and communication with other control systems in deep learning mode, thereby simplifying and improving the above-mentioned adjustment requirements.
  • Another aim of the invention is to make a control system for weaving looms which allows the weaving loom to learn, process and manage functional adjustments aimed at varying the work conditions, on the basis of data relative to optimum operations of the machine previously tested such as type of warp and tensions, type of weft and tensions, weft-warp weave, opening of the warp shed and times, causes of machine stoppages and relative stoppage times, work speed and variations during start-up and in operation, quality of fabric, ambient conditions and every other element useful for the purposes of the production efficiency of the machine and the quality of the fabric.
  • a further aim of the invention is to make a control system for weaving looms, as well as an integrated control system for individual actuation of mechanisms for forming the fabric, which is able to intervene with autonomous adjustments for each fabric to be produced during start-up or during weaving.
  • control system according to the invention uses a speed, position and torque control motor, which actuate the forward movement during the weaving phase, the reverse movement during the de-weaving phase and the slow movement during the control and adjustment phase of the weaving loom.
  • the command actuates the two parts of the machine (weaving machine WM which controls the shuttles for the transport of the weft and shedding mechanism SM which commands the opening of the warp shed), which are suitably coordinated by the actuation mechanisms.
  • Each of the above-mentioned parts includes a position transducer device, which is able to continuously send signals relative its position and its operational status to a central control system for the processing to be performed and the functional interventions to be carried out.
  • the control system collects operational data of the loom, such as the number and type of stops, the weaving speed, the discontinuity and/or quality of the fabric, etc., compares the data with a database inserted in a central logic, which contains the characteristics of the yarns and fabrics in production and the ambient conditions, and decides autonomously in auto- learning mode whether it is worthwhile modifying the operating parameters set at startup, such as, in particular, the driving speed, the phasing between the weaving machine and the shedding machine, any start ramp, etc, communicating with other control systems outside the machine in "Deep Learning" mode.
  • operational data of the loom such as the number and type of stops, the weaving speed, the discontinuity and/or quality of the fabric, etc.
  • the functional data is compared by a central control system with the previous data and the theoretical data and the control system decides whether it is worthwhile carrying out any further adjustment to the machine set-up.
  • FIG. 1 shows a block diagram of a first embodiment of a control system for weaving looms according to the invention
  • FIG. 2 shows a block diagram of an alternative embodiment of a control system for weaving looms according to the invention.
  • a first embodiment of the control system for weaving looms comprises a device for actuating the weaving machine (VVM) 8 and the shedding mechanism (SM) 7, which includes a motor 1 with a single control shaft 2, on which are mounted the gears 3, 4 for the control, by means of respective control shafts, of the weaving machine 8 and the shedding mechanism 7, and a frontal electromechanical coupling, comprising toothed portions 5, 6, which are connected, respectively and by means of respective control shafts, on one side, to the gear 3 and, on the other side, to the weaving machine 8.
  • the toothed portions 5, 6 can interface and connect according to the signals coming from the control system C.
  • the phasing between the weaving machine 8 and the shedding mechanism 7 is implemented by actuating the position coupling, with front gears, comprising the two portions 5 and 6, which are switched on or off following an electrical command coming from the control system C.
  • the control system C in turn receives the control signals transmitted by the parts 7 and 8 (weaving machine and shedding mechanism), which constitute the weaving loom, by means of transducer devices for the continuous position signalling, whilst a parking brake 9 intervenes during the phasing adjustments to ensure the precision of mutual positioning between the weaving machine 8 and the shedding mechanism 7.
  • each of the two parts send signals throughout the whole 360° arc with a resolution of 360 2 12 (or any greater precision, if necessary), so as to control every moment of the whole weaving or weft insertion cycle and to adopt phasing positions between the two parts controlled (weaving machine 8 and shedding machine 7) as a function of the technological needs of the fabric being produced.
  • the variation of the phasing can take place independently, when a stop for weft or warp occurs, or with an stop operated by the control system C, whilst the other types of work parameters can be modified with the machine working.
  • a further embodiment of the control system for weaving looms, according to the invention, which allows the operational weaving parameters to be modified in auto-learning mode, comprises the use of independent actuators comprising pitch control motors M1 , M2, which actuate, respectively, the weaving machine 8 and the shedding mechanism 7, which are in turn controlled by a control system C, which determines the speed and phasing in every moment of the weaving cycle or weft insertion cycle (Fig. 2).
  • the system according to the invention is able to measure and modify the phasing and the adjustments of the parts (weaving machine and shedding mechanism) which make up the loom, intervening automatically in auto-learning mode according to the operational data recorded with the machine in operation, compared with equivalent theoretical data entered in a central control system, as well as with data of other control systems with which the central control system is able to communicate.
  • the central control system optimizes, with suitable adjustment modifications, the productivity and the quality of the fabric being produced, implementing suitable interventions by means of modifications of the adjustments of a motor and a position electromechanical coupling or of two motor which actuate, respectively, the weaving machine and the shedding mechanism.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

L'invention concerne un système de commande pour métiers à tisser, comprenant un ou plusieurs moteurs (1 ; M1, M2) servant à actionner une machine à tisser (8) et une machine de formation de foule (7), qui constituent un métier à tisser, la machine à tisser (8) et la machine de formation de foule (7) comprenant des dispositifs respectifs conçus pour envoyer des signaux continus se rapportant à la position et à l'état fonctionnel respectifs à un système de commande (C), de sorte que le système de commande (C) puisse collecter les données fonctionnelles du métier à tisser, telles que le nombre et le type d'arrêts, la vitesse de tissage, la discontinuité/la qualité du tissu, etc., si nécessaire pour communiquer avec d'autres systèmes de commande, de façon à comparer les données avec une base de données contenant des données de fonctionnement théorique reposant sur les caractéristiques des fils et des tissus en production, et pour décider de manière autonome s'il faut éventuellement modifier les paramètres de fonctionnement de métier à tisser définis au démarrage, tels que la vitesse d'entraînement, la mise en phase entre la machine à tisser (8) et la machine de formation de foule (7), la rampe de démarrage, etc.
EP17809049.4A 2016-09-13 2017-09-12 Système de commande pour métiers à tisser et procédé d'apprentissage profond Active EP3512992B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102016000092046A IT201600092046A1 (it) 2016-09-13 2016-09-13 Sistema di comando per macchine per tessere e modalita’ deep learning
PCT/IT2017/000191 WO2018051378A1 (fr) 2016-09-13 2017-09-12 Système de commande pour métiers à tisser et procédé d'apprentissage profond

Publications (2)

Publication Number Publication Date
EP3512992A1 true EP3512992A1 (fr) 2019-07-24
EP3512992B1 EP3512992B1 (fr) 2020-09-09

Family

ID=58606423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17809049.4A Active EP3512992B1 (fr) 2016-09-13 2017-09-12 Système de commande pour métiers à tisser et procédé d'apprentissage profond

Country Status (7)

Country Link
EP (1) EP3512992B1 (fr)
JP (1) JP6974445B2 (fr)
KR (1) KR20190045360A (fr)
CN (1) CN109790657B (fr)
ES (1) ES2836110T3 (fr)
IT (1) IT201600092046A1 (fr)
WO (1) WO2018051378A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022511628A (ja) * 2018-10-18 2022-02-01 ヴァンドヴィル・スウェーデン・アクチエボラグ 学習手順を有する織り糸供給装置
FR3097565B1 (fr) * 2019-06-19 2022-08-12 Staubli Sa Ets Machine textile, métier à tisser comportant une telle machine textile et procédés associés

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2934026B2 (ja) * 1990-12-12 1999-08-16 津田駒工業株式会社 異常機台の制御データ修正方法
JPH05272037A (ja) * 1992-03-23 1993-10-19 Toyota Autom Loom Works Ltd 織機における機台条件設定装置
FR2727987B1 (fr) * 1994-12-07 1997-01-17 Icbt Diederichs Sa Metier a tisser
DE20021049U1 (de) * 2000-12-12 2001-03-29 Dornier Gmbh Lindauer Antriebsanordnung für eine Webmaschine und Fachbildemaschine
DE102007020907B4 (de) * 2007-04-26 2020-04-23 Picanol Verfahren und Vorrichtung zum Anfahren einer Webvorrichtung
DE102011006368B3 (de) * 2011-03-29 2012-02-16 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Verfahren und Webmaschine zur Webfachbildung

Also Published As

Publication number Publication date
KR20190045360A (ko) 2019-05-02
JP2019531416A (ja) 2019-10-31
WO2018051378A1 (fr) 2018-03-22
IT201600092046A1 (it) 2018-03-13
CN109790657A (zh) 2019-05-21
ES2836110T3 (es) 2021-06-24
EP3512992B1 (fr) 2020-09-09
JP6974445B2 (ja) 2021-12-01
CN109790657B (zh) 2020-11-10

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