EP0710736A1 - Verbesserung der Ladenstruktur für Webmaschine mit magnetisch bewegtem Projektil - Google Patents

Verbesserung der Ladenstruktur für Webmaschine mit magnetisch bewegtem Projektil Download PDF

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Publication number
EP0710736A1
EP0710736A1 EP94117340A EP94117340A EP0710736A1 EP 0710736 A1 EP0710736 A1 EP 0710736A1 EP 94117340 A EP94117340 A EP 94117340A EP 94117340 A EP94117340 A EP 94117340A EP 0710736 A1 EP0710736 A1 EP 0710736A1
Authority
EP
European Patent Office
Prior art keywords
shuttle
traction
frame structure
reed
channel
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Withdrawn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
EP94117340A
Other languages
English (en)
French (fr)
Inventor
Wu-Chen Chuang
Original Assignee
Cheng Chuan-Tien
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 Cheng Chuan-Tien filed Critical Cheng Chuan-Tien
Priority to EP94117340A priority Critical patent/EP0710736A1/de
Publication of EP0710736A1 publication Critical patent/EP0710736A1/de
Withdrawn legal-status Critical Current

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    • 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
    • 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
    • D03D49/60—Construction or operation of slay
    • D03D49/66—Shuttle races

Definitions

  • the present invention relates in general to the reed frame structure of weaving machines having magnetically-propelled shuttle.
  • the present invention relates to reed frame structure of weaving machine having protective covering for the travel channel of the shuttle traction device while maintaining sufficient traction force to the shuttle for stable operation.
  • FIGS. 1 and 2 of the accompanying drawing of the present invention shows respectively the perspective and cross-sectional view of the reed frame of a conventional weaving machine having magnetically-propelled shuttle.
  • the reed frame 1 of a typical magnetically-propelled-shuttle weaving machine comprises a shuttle guiding frame 11, a reed 12, and a pair of shuttle guide rails 13.
  • the shuttle guiding frame 11 is a generally hollow tubed structure to house the shuttle traction device 23 internally, and the reed 12 is typically installed along one side at the shuttle guiding frame 11, while the pair of shuttle guide rails 13 are fixed to the top of the shuttle guiding frame 11 to form a shuttle travel channel that a shuttle 24 can be pulled and travels back and forth therein.
  • the reed 12 is typically comprised of a number of parallel steel wires 121, allowing the upper and lower warp threads 35 and 34 to pass between the steel wires 121.
  • Each of the shuttle guide rails 13 may have a number of upright spacer plates 131 forming a number of spacer grooves 132 between every two consecutive spacer plates 131.
  • the spacer grooves 132 are utilized to contain the lower warp threads 34 during weaving.
  • the shuttle 24 is placed in the guided travel channel formed between the pair of shuttle guide rails 13 on top of the tube-shaped shuttle guiding frame 11.
  • the shuttle 24 is incorporated with a magnet 241 that can be attracted by another magnet 231 secured to the shuttle traction devices 23.
  • the pair of magnets 241 and 132 installed on the shuttle 24 and the shuttle traction device 23 respectively are arranged in a position with reverse magnetic polarity facing each other, so that the each of the pair of magnets attracts the other.
  • the shuttle traction device 23 can thus drive the shuttle 24 to move back and forth along the shuttle travel channel, allowing the shuttle 24 to lead the weft thread properly through the upper and lower warp threads 35 and 34 to weave the fabric accordingly.
  • the shuttle 24 should be moving at a highest possible speed during the weaving operation along the shuttle travel channel. Since the shuttle 24 is traveling in both directions, it is subjected to acceleration and deceleration when the direction of travel changes. To prevent the shuttle 24 from breaking loose from the magnetic attraction of the shuttle traction device 23, the distance between the shuttle 24 and the shuttle traction device 23 must be maintained as close to each other as possible. This is one of the most important controlling issues over the shuttle in a magnetically-propelled shuttle weaving machine.
  • FIG. 3 of the drawing depicts the cross-sectional view of the reed frame structure of that Chinese patent weaving machine.
  • the shuttle guiding frame 31 of the Chinese patent has an exposed shuttle travel. channel 311 cut through the top surface of its tube-shaped frame structure 31.
  • the shuttle traction device 23 can extend its very top portion into this channel 311 to further approach to the shuttle 24 than in the case of the conventional weaving machine of FIG 2.
  • the magnetic force between two magnets is inversely proportional to the square of the distance between the magnets. A shorter distance between the magnet 241 of the shuttle 24 and the magnet 231 of the shuttle traction device 23 directly results in the increase of the attraction force therebetween.
  • the weaving machine as disclosed in the Chinese Patent No. 20029 still faces the problem of exposing shuttle traction device to foreign objects.
  • the weaving machine is handling threads of short fibers, the massive accumulation of the fibers in the exposed shuttle travel channel 311 in relatively short time period is an obvious problem for such machines.
  • the present invention achieves the above-identified objects by providing a reed frame structure for weaving machine having magnetically-propelled shuttle.
  • the weaving machine has a shuttle traction device with a magnet pulling a shuttle with another magnet oriented in an attracting manner for carrying a weft thread.
  • the reed frame structure comprises: a shuttle guiding frame having a generally hollow tubed structure with a formed shuttle traction channel for housing the shuttle traction device and allowing the shuttle traction device to move back and forth therein; a reed installed along one side of the shuttle guiding frame having a number of parallel steel wires allowing a number of warp threads passing therebetween; and a pair of shuttle guide rails each positioned at one side of the shuttle travel channel and on the top surface of the shuttle guiding frame, each of the shuttle guide rails having a number of spacer plates extending upright from the rail, whereby every consecutive two of the spacer plates forming a spacer groove for receiving respective ones of the warp threads.
  • the reed frame structure further comprises a long and thin shuttle traction channel cover panel installed on top of the shuttle guide rails for covering the shuttle traction channel. The shuttle traction channel cover panel serves to protect against intrusion of foreign objects into the channel.
  • FIG. 4 in which is shown a cross-sectional view of the reed frame structure of the weaving machine having magnetically-propelled shuttle in accordance with a first preferred embodiment of the present invention.
  • the reed frame structure of the first embodiment of the present invention comprises the shuttle guiding frame 61, the reed 12, and the pair of shuttle guide rails 13.
  • the shuttle guiding frame 61 with its top surface cut open and forming a shuttle travel channel 311, is a generally hollow tubed structure to house the shuttle traction device 23 internally, and the reed 12 is installed along one side of the shuttle guiding frame 61, while the pair of shuttle guide rails 13 are fixed to the top of the shuttle guiding frame 61 to form a shuttle travel channel that a shuttle 24 can be pulled to travel back and forth therein.
  • a thin plate of shuttle traction channel cover panel 5 is placed on top of the shuttle guiding frame 61 and is pressed at its both sides under the pair of shuttle guide rails 13.
  • the thin plate of shuttle traction channel cover panel 5 covers the entire length of the shuttle travel channel 311.
  • the panel 5 is made from a thin plate to form a recessed channel 51 with two flanges 52 extending at both sides of the panel 5.
  • the recessed channel 51 of the shuttle traction channel cover panel 5 is provided for receiving the top portion of the shuttle traction device 23.
  • the arrangement allows for the close approximation of the magnet 231 of the shuttle traction device 23 to the magnet 241 of the shuttle 24.
  • the shuttle traction channel cover panel 5 is placed between the two magnets 241 and 231, the thin thickness of the panel 5 adds little to the distance therebetween.
  • each of the pair of shuttle guide rails 13 may also be prepared with a number of upright spacer plates 131 forming a number of spacer grooves 132 between every two consecutive spacer plates 131.
  • the spacer plates and grooves 131 and 132 allows for containing the lower warp threads 34 during weaving.
  • the shuttle traction channel cover panel 5 provides for the protection against the intrusion of foreign objects, in particular the thread fibers, into the channel in which the shuttle traction device 23 moves back and forth.
  • FIG. 6 a cross-sectional view of the reed frame structure of the weaving machine having magnetically-propelled shuttle in accordance with a second preferred embodiment of the present invention.
  • the second embodiment shown in the drawing has a different type of shuttle traction channel cover panel 7 replacing the panel 5 of FIG. 4.
  • FIG. 7 shows the perspective view of the shuttle traction channel cover panel 7 for the reed frame structure of the weaving machine of the second embodiment of the present invention.
  • the shuttle traction channel cover panel 7 is generally a long and thin flat plate having two rows of openings 71 thereon.
  • the openings 71 are provided to receive the two rows of spacer plates 131 of the two shuttle guide rails 13 when the shuttle traction channel cover panel 7 is placed in position on top of the shuttle guiding frame 31. With the openings 71 receiving the passing through of the spacer plates 131, the panel 7 can tightly cover the shuttle traction device's travel channel for the protection against the intrusion of foreign objects therein.
  • the thin thickness of the shuttle traction channel cover panel 7 adds little to the distance between the magnets 241 and 231 of the shuttle 24 and the shuttle traction device 23 respectively.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP94117340A 1994-11-02 1994-11-02 Verbesserung der Ladenstruktur für Webmaschine mit magnetisch bewegtem Projektil Withdrawn EP0710736A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94117340A EP0710736A1 (de) 1994-11-02 1994-11-02 Verbesserung der Ladenstruktur für Webmaschine mit magnetisch bewegtem Projektil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94117340A EP0710736A1 (de) 1994-11-02 1994-11-02 Verbesserung der Ladenstruktur für Webmaschine mit magnetisch bewegtem Projektil

Publications (1)

Publication Number Publication Date
EP0710736A1 true EP0710736A1 (de) 1996-05-08

Family

ID=8216430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94117340A Withdrawn EP0710736A1 (de) 1994-11-02 1994-11-02 Verbesserung der Ladenstruktur für Webmaschine mit magnetisch bewegtem Projektil

Country Status (1)

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EP (1) EP0710736A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002083492A1 (en) * 2001-04-11 2002-10-24 Albany International Corp. Flexible fluid containment marine vessel
US6718896B2 (en) 2001-10-30 2004-04-13 Albany International Corp. Fabric structure for a flexible fluid containment vessel
US6739274B2 (en) 2001-04-11 2004-05-25 Albany International Corp. End portions for a flexible fluid containment vessel and a method of making the same
US6832571B2 (en) 2001-10-30 2004-12-21 Albany International Corp. Segment formed flexible fluid containment vessel
US7107921B2 (en) 2001-10-30 2006-09-19 Albany International Corp. End portion for a flexible fluid containment vessel and a method of making the same
US7775171B2 (en) 2003-01-21 2010-08-17 Albany International Corp. Flexible fluid containment vessel featuring a keel-like seam

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE908240C (de) * 1950-07-23 1954-04-05 Beche & Grohs G M B H Webstuhl
FR2128661A1 (en) * 1971-03-11 1972-10-20 Quattrocolo Vittorio Loom shuttle - is traversed along a guide track using moving magnet
US4901768A (en) * 1989-04-28 1990-02-20 Chi Shuang Huang Picking apparatus for a loom
GB2240991A (en) * 1990-02-19 1991-08-21 Huang Chi Shuang Sley for a loom
GB2240992A (en) * 1990-02-19 1991-08-21 Huang Chi Shuang Driving apparatus for shuttle of a loom

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE908240C (de) * 1950-07-23 1954-04-05 Beche & Grohs G M B H Webstuhl
FR2128661A1 (en) * 1971-03-11 1972-10-20 Quattrocolo Vittorio Loom shuttle - is traversed along a guide track using moving magnet
US4901768A (en) * 1989-04-28 1990-02-20 Chi Shuang Huang Picking apparatus for a loom
GB2240991A (en) * 1990-02-19 1991-08-21 Huang Chi Shuang Sley for a loom
GB2240992A (en) * 1990-02-19 1991-08-21 Huang Chi Shuang Driving apparatus for shuttle of a loom

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002083492A1 (en) * 2001-04-11 2002-10-24 Albany International Corp. Flexible fluid containment marine vessel
US6675734B2 (en) 2001-04-11 2004-01-13 Albany International Corp. Spiral formed flexible fluid containment vessel
US6739274B2 (en) 2001-04-11 2004-05-25 Albany International Corp. End portions for a flexible fluid containment vessel and a method of making the same
US6860218B2 (en) 2001-04-11 2005-03-01 Albany International Corp. Flexible fluid containment vessel
US6718896B2 (en) 2001-10-30 2004-04-13 Albany International Corp. Fabric structure for a flexible fluid containment vessel
US6832571B2 (en) 2001-10-30 2004-12-21 Albany International Corp. Segment formed flexible fluid containment vessel
US7107921B2 (en) 2001-10-30 2006-09-19 Albany International Corp. End portion for a flexible fluid containment vessel and a method of making the same
US7775171B2 (en) 2003-01-21 2010-08-17 Albany International Corp. Flexible fluid containment vessel featuring a keel-like seam

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