US3596685A - Device for cutting and retaining the weft threads in shuttleless looms - Google Patents

Device for cutting and retaining the weft threads in shuttleless looms Download PDF

Info

Publication number
US3596685A
US3596685A US838753A US3596685DA US3596685A US 3596685 A US3596685 A US 3596685A US 838753 A US838753 A US 838753A US 3596685D A US3596685D A US 3596685DA US 3596685 A US3596685 A US 3596685A
Authority
US
United States
Prior art keywords
cutting
weft threads
lever
plates
cutting edge
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.)
Expired - Lifetime
Application number
US838753A
Other languages
English (en)
Inventor
Jose Bassa Bassart
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3596685A publication Critical patent/US3596685A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/16—Double-plush looms, i.e. for weaving two pile fabrics face-to-face
    • 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
    • D03D49/70—Devices for cutting weft threads

Definitions

  • the present invention relates to a device for cutting and holding weft threads in looms, in which the weft threads come from fixed bobbins located laterally outside the loom and pass through thread guides of a selector, said device holding selected weft threads in their position of presentation to the inserter elements to cut them, when they have been taken by the inserter elements.
  • the device is of very simple and economic design and consists of two forklike plates, with a groove for holding the weft threads, each one of these plates having in the lower edge of its groove a cutting edge, forming knives.
  • articulation lever blades In the lower branches of these forklike plates, are applied in articulation lever blades with an end bent in the shape of a hook, the upper inside edges of these hooks being provided with a cutting edge.
  • the assemblies of sharpened lower edges of the grooves and the sharpened hooks form shears, by means of the union in articulation of the two lever blades by their other two ends which receive a vertical alternating back-and-forth movement coming from a single drive.
  • FIG. 1 is a perspective view of the device mounted on a stationary shaft of a loom that makes two parallel fabrics at the same time.
  • FIG. 2 is a perspective view in perspective, on an enlarged scale, of the upper part of the device shown in FIG. 1.
  • FIG. 3 is a perspective view similar to that of FIG. 2, with a weft thread selected for each fabric and presented to its respective inserting element.
  • FIG. 4 is a perspective view similar to that of FIG. 3, but on an enlarged scale, with each selected weft thread taken by its corresponding inserting element.
  • FIG. 5 is a perspective view similar to that of FIG. 3, showing the difierent inserting elements in the position that they occupy a moment before cutting of the selected weft threads is performed.
  • FIG. 6 is a perspective view of a fraction of the upper part of the device, once the cutting of the selected weft threads has been performed.
  • FIG. 1 there is represented at 1 a fixed shaft resting on bedframe 1 of the loom, to whose shaft 1 is attached a support 2 by a trunnion 3.
  • the upper end of the support 2 defines a guide 6 by which a support piece 7 with a horizontal base 8 and slide 9 travel, said base 8 being united to the support 2 by a screw 10 that passes through slide 9.
  • Support piece 7 has a vertical square-shaped wall 11 on which is attached a plate holder 12 by means of a screw 13 that passes through a vertical slide 14.
  • Said plate holder 12 has slides 15 and 16 to 0 hold, by means of screws 17 and 18, forklike plate 19, and
  • Ann 47 supports a roller 51 that travels on a cam 52 applied to a mobile shaft 53 of the loom, not shown.
  • arm 49 of lever 48 is hooked end 54 of a helicoidal recoil spring 55, whose other end 56 is hooked to a projecting pivot 57 of support 2.
  • lever blades 27 and 28 At the connection points 35 and 36 of lever blades 27 and 28 are applied helicoidal springs 58 and 59 which compress said lever blades 27 and 28 against plates 19 and 24.
  • the lower branches of plates 19 and 24 have cutting edges 60 and 61, and hooks 31 and 32 of lever blades 27 and 28 have cutting edges 62 and 63.
  • a weft thread presenter has transferred selected weft threads 64 and 69 to bottoms 75 and 76 of hooks 31 and 32 of ends 29 and 30 of lever blades 27 and 28 (FIG. 3), selected weft threads 64 and 69 being presented and located opposite inserting elements 77 and 78 to be taken by these latter later (FIG. 4).
  • weft thread 64 (FIG. 5) being located between cutting edge 62 of hook 31 and cutting wire 60 of plate 19, and weft thread 69 at the same time is located between cutting edge 63 of hook 32 and cutting edge 61 plate 24. Therefore, weft threads 64 and 69 (FIG. 6) are cut by cutting edges 62 and 63 which act as shears with cutting wires 60 and 61.
  • Device for cutting and holding weft threads in a shuttleless loom comprising two forklike plates, each with a groove for holding the weft thread, each groove having a lower edge defined by a cutting edge, two lever blades applied in articulation to said two plates and which present one of their ends bent in the shape of a hook, the upper inside edge of each hook being provided with a cutting edge, and drive means for imparting pivotal movement to said lever blades relative to said plates whereby weft threads which are disposed between the cutting edge in the grooves and the cutting edge on the hooks are cut by shearing action.
  • a device for cutting weft threads as in claim 1 including a helicoidal compression spring disposed at the point of articulation between each plate and each lever blade, said spring pressing the lever blade against the respective plate.
  • a device for cutting weft threads as in claim 1 including a linklike piece pivotally connected between the ends of said lever blade which are opposite the hooked ends thereof, a drive rod having one end connected to said linklike piece and another end connected to a trunnion which is solid with a lever arm, and a cam for imparting pivotal motion to said lever arm.
  • a device for cutting weft threads as in claim 1 including a plate holder, means for adjustably mounting said plates in a variety of horizontal positions relative to said plate holder, a holder support, and means for adjustably mounting said plate holder in a variety of vertical positions relative to said holder support.
  • a device for cutting weft threads as in claim 5 including a fixed assembly support having an upper portion defining a horizontal slide, said holder support being adjustably mounted on said horizontal slide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US838753A 1968-07-06 1969-07-03 Device for cutting and retaining the weft threads in shuttleless looms Expired - Lifetime US3596685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES35616868 1968-07-06

Publications (1)

Publication Number Publication Date
US3596685A true US3596685A (en) 1971-08-03

Family

ID=8449748

Family Applications (1)

Application Number Title Priority Date Filing Date
US838753A Expired - Lifetime US3596685A (en) 1968-07-06 1969-07-03 Device for cutting and retaining the weft threads in shuttleless looms

Country Status (3)

Country Link
US (1) US3596685A (enrdf_load_stackoverflow)
FR (1) FR2016110A1 (enrdf_load_stackoverflow)
GB (1) GB1231736A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134434A (en) * 1976-03-11 1979-01-16 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi Weft cutting device in looms with mechanisms for multi weft weaving
US4353396A (en) * 1978-12-11 1982-10-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device for forming a selvedge in a loom
US5568827A (en) * 1993-07-29 1996-10-29 N. V. Michel Van de Wiele Weaving loom with sley associated device for positioning a weft cutter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275773A (en) * 1978-10-12 1981-06-30 Nissan Motor Company, Limited Weft cutting device in shuttleless loom

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380482A (en) * 1965-05-15 1968-04-30 Nuovo Pignone Spa Device for positively cutting the weft in a shuttleless loom having a continuous weft-supply mechanism
US3439715A (en) * 1966-05-06 1969-04-22 Alsacienne Constr Meca Weft mixer for looms
US3455343A (en) * 1966-05-20 1969-07-15 Ramon Balaguer Golobart Temples for shuttleless looms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380482A (en) * 1965-05-15 1968-04-30 Nuovo Pignone Spa Device for positively cutting the weft in a shuttleless loom having a continuous weft-supply mechanism
US3439715A (en) * 1966-05-06 1969-04-22 Alsacienne Constr Meca Weft mixer for looms
US3455343A (en) * 1966-05-20 1969-07-15 Ramon Balaguer Golobart Temples for shuttleless looms

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134434A (en) * 1976-03-11 1979-01-16 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi Weft cutting device in looms with mechanisms for multi weft weaving
US4353396A (en) * 1978-12-11 1982-10-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device for forming a selvedge in a loom
US5568827A (en) * 1993-07-29 1996-10-29 N. V. Michel Van de Wiele Weaving loom with sley associated device for positioning a weft cutter

Also Published As

Publication number Publication date
DE1932565A1 (de) 1970-01-15
DE1932565B2 (de) 1977-05-05
GB1231736A (enrdf_load_stackoverflow) 1971-05-12
FR2016110A1 (enrdf_load_stackoverflow) 1970-05-08

Similar Documents

Publication Publication Date Title
US3596685A (en) Device for cutting and retaining the weft threads in shuttleless looms
US3439715A (en) Weft mixer for looms
US2389809A (en) Method and device for cutting weft thread ends projecting from the fabric
US2497077A (en) Loom
US2300281A (en) Selvage-forming device
US2609009A (en) Twisted selvage cutter
US3598158A (en) Yarn clamping and cutting device
US4007762A (en) Selvage forming device for a weaving loom
US3237651A (en) Weft selectors for shuttleless looms
US2980146A (en) High speed loom
US2954056A (en) Weaving machine
US3153430A (en) Selvage forming mechanism for weaving machines
US2313300A (en) Circular weaving loom
US2283870A (en) Weaving machine
US2552418A (en) Shedding mechanism for looms
US1332166A (en) Loom
US1967510A (en) Yarn catcher for looms
US3186442A (en) Apparatus and method for forming a decorative fringe
US1684945A (en) Thread-handling mechanism
US3707171A (en) Needle loom for pile fabrics
US1741916A (en) Loom for weaving pile fabrics
US1891648A (en) Shuttle motion
US2123255A (en) Pile cutter for double fabric looms
US2065747A (en) Aximinster loom
US1802020A (en) Thread holding and trimming attachment for looms