EP0101946A2 - Dispositif d'insertion de trame pour un métier à tisser à plat au moyen d'une navette à pince - Google Patents

Dispositif d'insertion de trame pour un métier à tisser à plat au moyen d'une navette à pince Download PDF

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Publication number
EP0101946A2
EP0101946A2 EP83107442A EP83107442A EP0101946A2 EP 0101946 A2 EP0101946 A2 EP 0101946A2 EP 83107442 A EP83107442 A EP 83107442A EP 83107442 A EP83107442 A EP 83107442A EP 0101946 A2 EP0101946 A2 EP 0101946A2
Authority
EP
European Patent Office
Prior art keywords
shooter
gripper
motor
weft insertion
insertion device
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
EP83107442A
Other languages
German (de)
English (en)
Other versions
EP0101946A3 (en
EP0101946B1 (fr
Inventor
Ludwig Schlecht
Peter Defranceski
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.)
Herman Wangner GmbH and Co KG
Original Assignee
Herman Wangner GmbH and Co KG
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 Herman Wangner GmbH and Co KG filed Critical Herman Wangner GmbH and Co KG
Priority to AT83107442T priority Critical patent/ATE29158T1/de
Publication of EP0101946A2 publication Critical patent/EP0101946A2/fr
Publication of EP0101946A3 publication Critical patent/EP0101946A3/de
Application granted granted Critical
Publication of EP0101946B1 publication Critical patent/EP0101946B1/fr
Expired 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
    • D03D49/24—Mechanisms for inserting shuttle in shed
    • D03D49/44—Mechanisms for inserting shuttle in shed whereby the shuttle is propelled by electric or magnetic means

Definitions

  • the invention relates to a weft insertion device for flat weaving machines with a shooter according to the preamble of claim 1.
  • the shooter is one with a weft bobbin, so that it inevitably has a large mass and therefore high forces are required to accelerate it are, which in turn can only be generated by heavy magnets.
  • the shooter is also introduced into the rifle boxes and thus removed from the action of the magnetic means. Mechanical means can also be provided for better acceleration of the shooter from the shooter box. Due to the heavy weight of the shooter and the magnetic means, the number of shot entries per minute is limited.
  • Weft insertion devices are also known in which the shooter is dragged by magnetic forces only through a slide guided below the shed (DE-PS 211 916 and DE-OSen 1 785 147, 2 211 491 and 23 11 780).
  • the disadvantage here is that the shooter not only with his own weight, but also still presses with the force generated by the magnetic means on the warp wires beneath it, which can damage them and, in addition, a high level of wear also occurs on the shooter.
  • the invention has for its object to improve the weft insertion device known from DE-PS 908 240 so that a higher number of blows can be achieved.
  • the magnetic means are highly retentive permanent magnets, the magnets built into the gripper shooter and the magnets of the slides having the same orientation, so that poles of different names face each other and the shooters are attracted to each of the slides.
  • a plurality of alternately oppositely oriented magnets are preferably provided both in the gripper shooter and in the slide.
  • the shooter and the slide contain three permanent magnets, which are alternately oriented in opposite directions and not only drag the rapier shooter through the shed, but also stabilize their orientation at the same time.
  • a particularly suitable The material used for the permanent magnets is samarium cobalt.
  • the smallest possible air gap of about 0.7 to 1 mm exists between the gripper shooter and the slide. The air gap is intended to enable the formation of an air cushion below the gripper guard, so that it comes into contact with the lower warp wires as little as possible.
  • the carriage is preferably driven by toothed belts, since these, in conjunction with a stepper motor, a speed-controlled three-phase motor or a disc rotor motor, enable the carriage and thus the gripper shooter to be precisely positioned at the shot transfer point.
  • Timing belts are preferred because of their low elongation, but chains or ropes can also be used.
  • the gripper protecting the weft inserting device according to the invention preferably has a mass of less than 500 gr, and more particularly to those of less than 200 gr.
  • weft insertion device of the invention has the advantage that no beater with whipped wave, sub-clubs, top clubs and Picker, no shuttle boxes and no F anghebel exists that the batten is shortened by about 1 m and that the shooter may be built very shallow so that the compartment height is reduced. Resulting from this in turn smaller Kettfadenmputationsunter Kunststoffe the F ach Ard and a smaller rod stroke of 50 mm to 70 and thereby the possibility of a rapid change of subject.
  • the smaller compartment height also means a smaller F achö Stammswinkel, may be provided whereby a greater number of shaft frames.
  • the tension exerted on the shot can thus be monitored during the entire entry of the shot, the load peaks of the shot already being damped anyway by the lower weight of the shooter and the flexible coupling between the slide and the gripper shooter to a certain extent.
  • the magnetic forces can be chosen so that the gripper shooter leaves the magnetic field between the carriages and remains when the tensile force exerted on the shot becomes too high.
  • there is no wear and tear on the reed by the shooter since the shooter no longer guides it along the reed, thus no longer causes abrasion. Due to the lower compartment height, the reed can also be made lower and thus more stable.
  • the weft insertion device according to the invention is also considerably quieter than a striking device. Because of the smaller rifle shooters, there are also shorter shot ends and thus a saving in shot material.
  • the rapier 1 moves in the shed formed by the warp threads 2.
  • the sley 3 and its drive are of conventional design and are therefore not described in detail here.
  • the gripper shooter 1 is moved by magnetic forces which emanate from a slide 4.5 arranged above the shed and a slide 4.5 arranged below the shed, which in turn is driven by toothed belts 6, 7 which are clamped at the front and rear ends of the slide 4.5, and are driven by a stepper motor 9 via a toothed wheel 8.
  • the gripper shooter has three permanent magnets 10a, b, c of 20 to 24 mm in diameter, which have alternating opposite magnetic orientations.
  • the upper and lower slides 4, 5 also each contain 3 permanent magnets 11 a, b, c of 20 to 24 mm in diameter, which are aligned with the permanent magnets 10 a, b, c of the gripper gun 1, the aligned permanent magnets being the same Have orientation, so that opposite magnetic poles always face each other.
  • the permanent magnets 11 a, b, c of the slides thus also have alternating opposite orientations.
  • the slides 4, 5 slide in rails 12, 13.
  • the rail 12 for the lower carriage 5 is embedded in the top of the sley 3. It has an upwardly open C-profile, as can be seen in FIG. 2, so that the lower slide 5 is not only guided laterally but also in the vertical direction.
  • the upper carriage 4 is guided in a corresponding rail 13 with a C-profile which is open at the bottom, the upper holder of the reed 19 also serving as a support for the upper rail 13. Since the gripper shooter 1 has only about 1/10 of the weight that a gripper shooter has in a mechanical weft insertion device, namely less than 500 gr, it can be of a very flat design, which results in a small compartment opening angle and thus a low overall height of the reed 19.
  • the reed 19 is thereby more stable and can be used as a support and holder for the upper rail 13.
  • the rails 12 and 13 are made of polyethylene to reduce friction and the treads of the carriage 4.5 made of polyethylene.
  • the rails 12, 13 are arranged at such a distance that there is an air gap 20 between the lower carriage 5 and the upper carriage 4 on the one hand and the gripper shooter 1 on the other hand, which is approximately 0.1 to 0.2 mm larger than the diameter of warp wires 2.
  • This forms an air cushion during the movement of the looper 1 between the latter and the two slides 4, 5, which largely prevents contact of the looper 1 with the warp threads 2.
  • the gripper shooter 1 also has rollers 15 which reduce the friction at low speeds when an adequate air cushion cannot form yet.
  • the two slides 4, 5 are moved synchronously via toothed belts 6, 7.
  • the toothed belts 6, 7 run over toothed wheels 8 arranged on the side of the sley 3. While the toothed wheel 8 runs empty on one side, the toothed wheel 8 on the other side is driven by a stepper motor 9.
  • the stepper motor 9 is controlled in a manner known per se by a microprocessor. With a weight of 250 gr of the gripper shooter 1, a stepper motor with an output of 250 watts is sufficient to pull the gripper shooter through a 10 meter wide shed within one second.
  • the stepper motor 9 enables a uniform acceleration of the gripper contactor 1 and an even braking. At the same time, it enables precise positioning of the gripper shooter 1 at the shot transfer point. When the stepper motor 9 is supplied with 10,000 Hz the positioning accuracy is less than 2 mm.
  • the gripper beak 14 of the gripper shooter 1 is of conventional design and is pneumatically or electrically actuated in the usual manner by a gripper switching cylinder 16, so that it need not be described in more detail here.
  • a contactor box is not required, since the gripper shooter 1 is also held in its two end positions, that is to say by the carriage 4, 5 during the transfer of the weft thread.
  • the weft thread is held ready by one or more weft thread feeders 17 which can be moved in and out and are arranged on both sides of the weaving machine.
  • gripping beak 14 is held in its open and closed position by P permanent magnets 18.
  • a contactless switch 22 monitors on both sides of the weaving machine whether the rapier 1 has reached the end position in which the thread transfer takes place.
  • the weft insertion device of the invention teaches looms over 5 m weaving width special advantages, because with such a broad looms Z eitan- part for accelerating and decelerating the gripper shuttle percentage compared to the proportion of time the duration throughput speed of the gripper protecting lower through the shed than in narrow looms.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP83107442A 1982-07-28 1983-07-28 Dispositif d'insertion de trame pour un métier à tisser à plat au moyen d'une navette à pince Expired EP0101946B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83107442T ATE29158T1 (de) 1982-07-28 1983-07-28 Schusseintragvorrichtung fuer flachwebmaschinen mit einem greiferschuetzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3228217 1982-07-28
DE3228217A DE3228217C2 (de) 1982-07-28 1982-07-28 Schußeintragvorrichtung für Flachwebmaschinen

Publications (3)

Publication Number Publication Date
EP0101946A2 true EP0101946A2 (fr) 1984-03-07
EP0101946A3 EP0101946A3 (en) 1985-05-29
EP0101946B1 EP0101946B1 (fr) 1987-08-26

Family

ID=6169545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107442A Expired EP0101946B1 (fr) 1982-07-28 1983-07-28 Dispositif d'insertion de trame pour un métier à tisser à plat au moyen d'une navette à pince

Country Status (8)

Country Link
US (1) US4529016A (fr)
EP (1) EP0101946B1 (fr)
AR (1) AR230846A1 (fr)
AT (1) ATE29158T1 (fr)
BR (1) BR8303983A (fr)
CA (1) CA1219191A (fr)
DE (2) DE3228217C2 (fr)
ES (1) ES524535A0 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609729A1 (fr) * 1987-01-15 1988-07-22 Chuang Wu Chen Metier a tisser a navette magnetique
WO2007039243A1 (fr) * 2005-10-01 2007-04-12 Sultex Ag Element de guidage de fil de trame concu pour inserer un fil de trame

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2777400B2 (ja) 1989-04-05 1998-07-16 唄野 乃華 磁気シャットル織機におけるひ投げ装置
GB2240992A (en) * 1990-02-19 1991-08-21 Huang Chi Shuang Driving apparatus for shuttle of a loom
DE69906049T2 (de) * 1999-07-29 2003-09-04 Cheng Cheng Hsiung Webmaschine mit magnetischer Schütze
US20080018176A1 (en) * 2006-05-26 2008-01-24 Sultex Ag Power supply for a rapier head
US9353467B2 (en) * 2013-01-22 2016-05-31 Mageba Textilmaschinen Gmbh & Co. Kg Shuttle as well as weaving machine and weaving process with such a shuttle
CN103710820B (zh) * 2013-12-25 2016-07-13 高密市三佳纺织有限公司 磁浮引纬自动织布机
CN114960001B (zh) * 2022-03-25 2023-06-20 郑州中远防务材料有限公司 一种薄膜纺织机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE211916C (fr) *
DE804785C (de) * 1948-10-02 1951-04-30 Letzerich K G H Schuetzenfuehrung und Schuetzenantrieb fuer Flach- oder Rundwebstuehle
DE908240C (de) * 1950-07-23 1954-04-05 Beche & Grohs G M B H Webstuhl
DE1785147A1 (de) * 1968-08-16 1972-01-05 Adolf Linka Schuetzenantrieb und Schuetzenfuehrung fuer Wellenfach-Webmaschinen
CH615708A5 (en) * 1975-11-27 1980-02-15 Jeandaud Jean Claude Weaving machine and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE30878C (fr) *
FR989730A (fr) * 1949-04-27 1951-09-12 Mode d'entraînement de la navette dans les métiers à tisser rectilignes
DE1281966B (de) * 1959-05-08 1968-10-31 Sulzer Ag Vorrichtung zum Fuehren von Webschuetzen im Webfach
US3114398A (en) * 1959-05-08 1963-12-17 Sulzer Ag Method and means for guiding shuttles through the shed in a loom for weaving
US3636989A (en) * 1969-12-29 1972-01-25 Finckh Metalltuch Maschf Wire loom with bobbinless weft inserting member
FR2128661A1 (en) * 1971-03-11 1972-10-20 Quattrocolo Vittorio Loom shuttle - is traversed along a guide track using moving magnet
DE2311780A1 (de) * 1973-03-09 1974-09-12 Inst Wlokiennictwa System zur beruehrungslosen befoerderung von gegenstaenden, insbesondere von behaeltern mit schussfaeden in einer wellenwebmaschine
GB1428164A (en) * 1973-03-16 1976-03-17 Inst Wlokiennictwa Apparatus for the contactless handling of objects
FR2372256A1 (fr) * 1976-06-04 1978-06-23 Piquemal Jean Mouvement de battant avec rotation pour tissage a gabarit electronique
CS207821B1 (en) * 1978-03-11 1981-08-31 Josef Senk Appliance for transport of the weft insertors,mainly for the multished looms

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE211916C (fr) *
DE804785C (de) * 1948-10-02 1951-04-30 Letzerich K G H Schuetzenfuehrung und Schuetzenantrieb fuer Flach- oder Rundwebstuehle
DE908240C (de) * 1950-07-23 1954-04-05 Beche & Grohs G M B H Webstuhl
DE1785147A1 (de) * 1968-08-16 1972-01-05 Adolf Linka Schuetzenantrieb und Schuetzenfuehrung fuer Wellenfach-Webmaschinen
CH615708A5 (en) * 1975-11-27 1980-02-15 Jeandaud Jean Claude Weaving machine and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609729A1 (fr) * 1987-01-15 1988-07-22 Chuang Wu Chen Metier a tisser a navette magnetique
BE1001380A4 (fr) * 1987-01-15 1989-10-17 Chuang Wu Chen Metier a tisser a navette magnetique.
WO2007039243A1 (fr) * 2005-10-01 2007-04-12 Sultex Ag Element de guidage de fil de trame concu pour inserer un fil de trame
EP1777328A1 (fr) * 2005-10-01 2007-04-25 Markus Farner Procédé d'insertion de trame

Also Published As

Publication number Publication date
ATE29158T1 (de) 1987-09-15
ES8404433A1 (es) 1984-05-01
CA1219191A (fr) 1987-03-17
AR230846A1 (es) 1984-07-31
DE3228217C2 (de) 1985-12-05
ES524535A0 (es) 1984-05-01
EP0101946A3 (en) 1985-05-29
DE3228217A1 (de) 1984-02-09
EP0101946B1 (fr) 1987-08-26
US4529016A (en) 1985-07-16
DE3373199D1 (en) 1987-10-01
BR8303983A (pt) 1984-04-24

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