EP0224464A2 - Procédé pour contrôler à chaque insertion l'alimentation en fil pendant le tissage d'un tissu à poils sur un métier à tisser Jacquard - Google Patents

Procédé pour contrôler à chaque insertion l'alimentation en fil pendant le tissage d'un tissu à poils sur un métier à tisser Jacquard Download PDF

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Publication number
EP0224464A2
EP0224464A2 EP86870170A EP86870170A EP0224464A2 EP 0224464 A2 EP0224464 A2 EP 0224464A2 EP 86870170 A EP86870170 A EP 86870170A EP 86870170 A EP86870170 A EP 86870170A EP 0224464 A2 EP0224464 A2 EP 0224464A2
Authority
EP
European Patent Office
Prior art keywords
yarn
weaving
pile
processor
information
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.)
Withdrawn
Application number
EP86870170A
Other languages
German (de)
English (en)
Other versions
EP0224464A3 (fr
Inventor
Louis Vermeiren
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.)
Individual
Original Assignee
Individual
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
Priority claimed from BE0/215925A external-priority patent/BE903733A/nl
Application filed by Individual filed Critical Individual
Publication of EP0224464A2 publication Critical patent/EP0224464A2/fr
Publication of EP0224464A3 publication Critical patent/EP0224464A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • 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
    • D03D51/20—Warp stop motions

Definitions

  • This invention relates to a method for controlling shot-wise the yarn-feed when weaving pile fabrics on a Jacquard loom.
  • the invention has for object to obviate said drawbacks and to design a device which provides with original and technically-reliable means, a solution which makes it possible to stop the loom whenever any one of the following conditions is sensed:
  • the method according to the invention is based on the following steps:
  • the invention further pertains to a device for controlling the yarn-feed when weaving pile fabrics of the above-­defined kind.
  • the invention particularly pertains to an origi­nal device which makes it possible to provide a reliable infor­mation regarding the yarn-feed, whereby there may be deduced from such an information whether the yarn-feed lies below or above the programmed value. This may mean that the yarn is broken or the yarn-feed is so limited that this must necessa­rily lead to breaking.
  • the device comprises first of all, an apparatus which reads with a photocell the Jacquard patterns and records the informa­tion thereof (weaving-in, respectively pile weaving), as well as an apparatus wherewith feeding a yarn length to be woven is measured, which apparatus comprises a running wheel where­over the yarn to be woven is lead, and a disk rotating in synchronism with said running wheel, which acts together with a photocell as a pulse counter, and means to couple the informa­tion provided by said pulse counter, by means of a clock for every yarn to be controlled, to an electronic memory.
  • the device according to the invention is based on synchroneously reading two data which are to be controlled and read shot-wise.
  • the command to form or not pile from a yarn is recorded.
  • Said apparatus comprises a light source 2 and a set photo-electric cells (one for each pile yarn) which are mounted in the part 3.
  • a Jacquard card 4 is lead through apparatus 1.
  • the information (weaving-in, respectively pile weaving) is recorded.
  • a drive drum 5 insures the shot wise displacement of the cards present in a magazine 6.
  • the Jacquard mechanism is shown with reference 7.
  • the length of the yarn being conveyed should also be measured with an apparatus which has been originally designed thereof.
  • the apparatus as shown in figure 1 which measures the conveyed yarn length comprises notably the following compo­nents: a bobbin 8 the yarn 9 is unwound from, a conventional tension generator 10, two yarn guides 11, a pulley 12 which is fast to a shaft whereon a disk 13 is also secured. Said disk 13 is provided with a series slits 14 which let the light beams originating from a light source, through to a photocell 15. The pulley 12 is thus rotated due to the engagement thereof with yarn 9, over an angle which is a direct function of the conveyed yarn length. The light pulses the disk 13 lets through per time unit are counted by means of said photocell 15.
  • Too high or too low a tension is deduced from the recorded pulse number. Said number is compared with reference values which may correspond with a minimum/maximum value or with a nominal value with tolerance.
  • the photocell for reading the Jacquard cards is shown with reference numeral 15.
  • a photocell is connected for each yarn and the information which causes the command "weaving-in” or "pile weaving” for a yarn is conveyed through a switch 17 controlled by a clock 16, to a memory 18 where the information is stored. From memory 18, the information is coupled through a step switch 19 to a processor 20.
  • the pulses counted with disk 13 are coupled to a counter 22 driven by a clock 21.
  • One counter is provided for each yarn.
  • the information reaches memories 23.
  • Said memories 23 contain information regar­ding the ascertained yarn length, which information reaches processor 20 through a step switch 24.
  • Said step switches 19 and 24 have to operate synchroneously in such a way that infor­mation from one specific memory 18 and from one specific memory 23 always pertain to one and the same pile yarn.
  • Processor 20 further comprises a connection member 25 which insures connection to a comparator 26 or 26 ⁇ . Both comparators 26 and 26 ⁇ compare the input information with the information from the pre-set units 27 and 28, which contain the reference values (weaving-in, respectively pile weaving).
  • Said connection member 25 is so driven by the information contained in said memories 18, that with pile-weaving or respectively weaving-in, the data from said memories 23 are fed to comparator 26 ⁇ or respecti­vely 26.
  • the processor technology should be such that a comparison can be made stepwise (that is yarn by yarn) with the programmed value (yarn length) and this as a function of the Jacquard data. When under such conditions, a pile-wea­ving-in yarn lies outside the determined reference values, an alarm signal will be generated in 29.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP86870170A 1985-11-28 1986-11-24 Procédé pour contrôler à chaque insertion l'alimentation en fil pendant le tissage d'un tissu à poils sur un métier à tisser Jacquard Withdrawn EP0224464A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE0/215925A BE903733A (nl) 1985-11-28 1985-11-28 Werkwijze voor het scheut per scheut controleren van de draadtoevoer bij het weven van poolweefsels met behulp van een jacquardweefgetouw.
BE215925 1985-11-28

Publications (2)

Publication Number Publication Date
EP0224464A2 true EP0224464A2 (fr) 1987-06-03
EP0224464A3 EP0224464A3 (fr) 1988-07-13

Family

ID=3843944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86870170A Withdrawn EP0224464A3 (fr) 1985-11-28 1986-11-24 Procédé pour contrôler à chaque insertion l'alimentation en fil pendant le tissage d'un tissu à poils sur un métier à tisser Jacquard

Country Status (1)

Country Link
EP (1) EP0224464A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009386A3 (nl) * 1995-05-11 1997-03-04 Michel Van De Wiele N V Gecombineerde poolgeversturing en poolkettingboomaflaat voor poolweefmachines.
WO2020255056A1 (fr) * 2019-06-20 2020-12-24 Vandewiele Nv Machine à tisser avec dispositif et procédé de détection de variations de formation de poils

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941551A (en) * 1958-01-09 1960-06-21 Lees & Sons Co James Semi-oriental jacquard and method
BE764092A (fr) * 1970-03-13 1971-08-02 Mondellini Ambrogio Dispositif de securite pour metier jacquard
JPS5328544B2 (fr) * 1975-03-06 1978-08-15
JPS5266767A (en) * 1975-11-25 1977-06-02 Nissan Motor Woof detecting device
NL7603258A (nl) * 1976-03-29 1977-10-03 Picanol Nv Werkwijze en inrichting voor het kontroleren van de inslag op een weefmachine.
US4256149A (en) * 1979-04-09 1981-03-17 M. Lowenstein & Sons, Inc. Electromechanical filling indicator for pattern-controlled weaving loom

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009386A3 (nl) * 1995-05-11 1997-03-04 Michel Van De Wiele N V Gecombineerde poolgeversturing en poolkettingboomaflaat voor poolweefmachines.
US5699837A (en) * 1995-05-11 1997-12-23 N.V. Michel Van De Wiele Combined pile feeder control system and pile warp let-off motion for pile weaving machine
WO2020255056A1 (fr) * 2019-06-20 2020-12-24 Vandewiele Nv Machine à tisser avec dispositif et procédé de détection de variations de formation de poils
BE1027383B1 (nl) * 2019-06-20 2021-01-28 Vandewiele Nv Inrichting en werkwijze voor het detecteren van afwijkingen bij poolvorming in een weefmachine
CN113874571A (zh) * 2019-06-20 2021-12-31 范德威尔公司 具有检测成绒变化的装置和方法的织机
US11840777B2 (en) 2019-06-20 2023-12-12 Vandewiele Nv Weaving machine with device and method for detecting variations in pile-forming
CN113874571B (zh) * 2019-06-20 2024-03-12 范德威尔公司 具有检测成绒变化的装置和方法的织机

Also Published As

Publication number Publication date
EP0224464A3 (fr) 1988-07-13

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