US3171444A - Weft cutting device for weaving machinery - Google Patents

Weft cutting device for weaving machinery Download PDF

Info

Publication number
US3171444A
US3171444A US181103A US18110362A US3171444A US 3171444 A US3171444 A US 3171444A US 181103 A US181103 A US 181103A US 18110362 A US18110362 A US 18110362A US 3171444 A US3171444 A US 3171444A
Authority
US
United States
Prior art keywords
loom
cutter
warp
weft
fabric
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
US181103A
Other languages
English (en)
Inventor
Juillard Yves
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.)
Alsacienne de Constructions Mecaniques SA
Original Assignee
Alsacienne de Constructions Mecaniques SA
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 Alsacienne de Constructions Mecaniques SA filed Critical Alsacienne de Constructions Mecaniques SA
Application granted granted Critical
Publication of US3171444A publication Critical patent/US3171444A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/06—Auxiliary apparatus combined with or associated with looms for treating fabric
    • D03J1/08—Auxiliary apparatus combined with or associated with looms for treating fabric for slitting fabric
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6592—Interrelated work-conveying and tool-moving means
    • Y10T83/6593—With reciprocating tool [e.g., "jigsaw" type]

Definitions

  • This invention relates to an improved cutting device usable as an attachment on looms for cutting the weft threads of the woven fabric as the weaving proceeds.
  • the cutting of the weft during a weaving operation may have various uses. It may be useful in cutting oif the protruding end parts of the picks of weft successively shot across the fabric in shuttleless looms.
  • the device will also be of value in all cases where it may be desired to cut the fabric into a plurality of breadths or strips, as in the manufacture of crape bandages for instance.
  • Other objects are to provide such a weft cutting device which will be quickly and easily removable and reinsertable as for sharpening or replacing the cutter blade, or when the cutter is not required; and to provide such a device the installation of which on an existing loom will require the provision of a minimum of additional mechanism for actuating the cutter from the loom mechanism, and which once installed will not interfere with the principal operation of the loom for the weaving of fabrics.
  • the invention in one aspect comprises the provision, in a loom having means for forming a woven fabric with mutually normal warp and weft threads and means for advancing the fabric on the loom parallel to the warp, of a cutter blade, and means mounting said cutter blade in a general plane normal to said weft threads so as to cut through all the weft threads as the fabric is advanced, said mounting means including means permitting some degree of free floating movement of the blade normally to said plane so as to prevent the blade from cutting into and scotching the warp threads.
  • the invention further contemplates imparting a reciprocatory movement to the blade along its length direction, i.e. normally to the plane of the fabric, for improving the cutting action.
  • means are provided for rapid and easy removal of the cutter blade from, and its insertion into, its operative position on the loom.
  • FIG. 1 is a perspective view of part of a loom equipped with the improved weft cutting attachment of the invention.
  • FIG. 2 is a large-scale view of the cutter blade, shown in section, cutting through the weft of a woven fabric.
  • FIG. 1 there are shown at 1 and 2 the two sheets of the warp yarn forming the shed as said sheets are cyclically reciprocated by the conventional reciprocating heddles or equivalent means of the loom, not shown.
  • Conventional means such as a shuttle or a pair of weft picking needles (not shown) are provided for cyclically shooting a pick of weft yarn 3 through the shed, and further means, such as a reed carried on a batten, the latter indicated at 33, then act to settle the pick of weft into the apex of the shed defined by sheets 1 and 2.
  • a woven fabric as indicated at 4, which is advanced through the loom by means of a take-up beam 11 or the like.
  • a cutter device gen erally indicated at 15 includes a cutter blade 15a which is mounted in generally vertical position with the general plane of the blade extending parallel to the general direction of the warp, so as to be insertable between two adjacent warp threads and thereby cut through the weft as the fabric is advanced towards beam 11.
  • the cutter blade 15a is secured at its lower end to an end member or fitting 15b, which conveniently is in the form of a split plug resiliently insertable into a complementary socket 17 pivoted at its lower end at 18 to one arm 19 of a bellcrank lever 20.
  • the cutter 15 is very quickly and easily inserted in position and once inserted will be retained with quite adequate firmness during operation, while being just as quickly and readily removable from its mount, by simply pulling out forcibly the end fitting 1517 out of the socket 17, when desired, e.g. to sharpen, or replace, the cutter blade 15a.
  • the upper end of the cutter 15 is shown as being provided with a knurled knob 35. It will be understood however that various other mounting means, preferably though not necessarily of a quickly disengageable character, may be provided instead of the mounting means shown.
  • the bell-crank lever 20 is pivoted at its center or apex on a pivot 21 parallel to the longitudinal or warp direction of the loom, supported from a boss 22 of the frame 16 of the loom.
  • the second arm 24 of lever M which is directed downwardly, has its end pivoted at 25 to a point of a bar 26 which is mounted for transverse reciprocation in the frame e.g. in bearings such as 27 provided in said frame.
  • One end of bar 26 is shown connected by way of a swivel 31 to one end of an obliquely extending link 28 the other end of which is connected by a swivel 32 to the batten 33.
  • the batten 33 will impart transverse reciprocation to the slider bar 26 through link 28 and hence, through the bell-crank lever 20, will impart vertical reciprocation to the cutter 15, thereby facilitating the cutting operations.
  • the cutter 15 is, in effect, free-floating in regard to its transverse movements in the direction normal to the plane of the blade, and parallel to the direction of the weft yarn.
  • the cutter will be able to accommodate any minor variations in warp direction as will inevitably occur along the length of the fabric, and will simply rock slightly about its lower pivot 18 to accommodate such directional variations in the warp without tending to bite into either of the two adjacent warp yarns between which the blade is inserted, as would be the case were it not for the transverse freedom of motion provided by the floating mount described.
  • the mounting arrangement illustrated and described- is advantageous in that, in addition to providing the transverse freedom of motion mentioned above, it firmly and positively retains the cutter against longitudinal move-- ments which would interfere with a positive. and efficient cutting action. 'Moreover, while'the mounting provides for a very quick and simple removal of the cutter when necessary, it does not allow any objectionablerangling of 17. It will also be noted that on removal of the cutter 15, the remaining parts of the device orattachment of the invention will not in any way interfere with the; normal functions of the loom.
  • a stationary part on'the. loom a cyclicallymoving part and mechanisms-for cutting the. weft threads as the fabric is advanced through the loom, said mechanism comprising a bell-crank lever fulcrumed to said stationary part, for pivotal movement in a vertical plane, a socket member mounted on onearm of said bell-crank: lever for,
  • an elongated. cutter member having opposite ends, a splitplug carried byone end of. the cutter memberwith said socket member being:
  • a stationary part on the loom a member cycli- V 'cally reciprocable parallelto said warp threads and mech- 3d 15b in the said proper orientation relative to the socket anism for cutting the weft thread as the'rfabric is advanced through the loom, said mechanism comprising a bellcrank lever fulcrumedto said stationary part-for pivotal movement in a vertical plane, an elongated cutter memher, 'a fitting member on one end of said cutter member, a socket member mounted on one arm of said bell-crank lever forspivotal movement about an axis, parallel to the warp threads passing through the loom and positioned to receive and removably retain said fitting member in the proper cutting position of said cutter member, a bar mounted for reciprocation parallel to the weft threads, means pivotally connecting the other arm of said bellcrank lever to said bar, a link extending obliquely between said reciprocable memberand said

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Treatment Of Fiber Materials (AREA)
US181103A 1961-03-30 1962-03-20 Weft cutting device for weaving machinery Expired - Lifetime US3171444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR857275A FR1293118A (fr) 1961-03-30 1961-03-30 Dispositif de coupe de fils de trame sur métier à tisser

Publications (1)

Publication Number Publication Date
US3171444A true US3171444A (en) 1965-03-02

Family

ID=8752036

Family Applications (1)

Application Number Title Priority Date Filing Date
US181103A Expired - Lifetime US3171444A (en) 1961-03-30 1962-03-20 Weft cutting device for weaving machinery

Country Status (6)

Country Link
US (1) US3171444A (fr)
BE (1) BE615213A (fr)
CH (1) CH376449A (fr)
ES (1) ES275901A1 (fr)
FR (1) FR1293118A (fr)
GB (1) GB984304A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297057A (en) * 1963-06-01 1967-01-10 Prince Jidosha Kogyo Kabushiki Device for grasping and guiding travelling ends of wefts
US6308727B1 (en) 1999-01-27 2001-10-30 Healy Systems, Inc. Fuel dispensing swivel breakaway assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489762A (en) * 1983-04-11 1984-12-25 Draper Corporation Weaving loom selvedge trimmer drive mechanism

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US188702A (en) * 1877-03-20 Improvement in machines for cutting textile and other materials
DE403177C (de) * 1924-09-25 Kurt Everling Vorrichtung zum Auseinanderschneiden mehrerer nebeneinander gewebter Stuecke auf dem Webstuhl
US1835556A (en) * 1929-08-08 1931-12-08 Draper Corp Cloth splitting attachment for looms
DE577106C (de) * 1932-07-15 1933-05-27 Hans Ten Pas Vorrichtung zum Auseinanderschneiden von Geweben auf dem Webstuhl
US2018831A (en) * 1933-03-20 1935-10-29 Vitus A Boker Metal sawing and filing machine
DE662209C (de) * 1934-12-12 1938-07-07 Ernst Liebing Schussfadenabschneid- und -festklemmvorrichtung an Wechselwebstuehlen
US2389809A (en) * 1942-06-11 1945-11-27 Sulzer Ag Method and device for cutting weft thread ends projecting from the fabric
US2609009A (en) * 1950-10-28 1952-09-02 Warner Swasey Co Twisted selvage cutter
US2868235A (en) * 1958-01-17 1959-01-13 Crompton & Knowles Corp Thread cutting temple for weft replenishing looms

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US188702A (en) * 1877-03-20 Improvement in machines for cutting textile and other materials
DE403177C (de) * 1924-09-25 Kurt Everling Vorrichtung zum Auseinanderschneiden mehrerer nebeneinander gewebter Stuecke auf dem Webstuhl
US1835556A (en) * 1929-08-08 1931-12-08 Draper Corp Cloth splitting attachment for looms
DE577106C (de) * 1932-07-15 1933-05-27 Hans Ten Pas Vorrichtung zum Auseinanderschneiden von Geweben auf dem Webstuhl
US2018831A (en) * 1933-03-20 1935-10-29 Vitus A Boker Metal sawing and filing machine
DE662209C (de) * 1934-12-12 1938-07-07 Ernst Liebing Schussfadenabschneid- und -festklemmvorrichtung an Wechselwebstuehlen
US2389809A (en) * 1942-06-11 1945-11-27 Sulzer Ag Method and device for cutting weft thread ends projecting from the fabric
US2609009A (en) * 1950-10-28 1952-09-02 Warner Swasey Co Twisted selvage cutter
US2868235A (en) * 1958-01-17 1959-01-13 Crompton & Knowles Corp Thread cutting temple for weft replenishing looms

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297057A (en) * 1963-06-01 1967-01-10 Prince Jidosha Kogyo Kabushiki Device for grasping and guiding travelling ends of wefts
US6308727B1 (en) 1999-01-27 2001-10-30 Healy Systems, Inc. Fuel dispensing swivel breakaway assembly

Also Published As

Publication number Publication date
CH376449A (fr) 1964-03-31
BE615213A (fr) 1962-07-16
FR1293118A (fr) 1962-05-11
GB984304A (en) 1965-02-24
ES275901A1 (es) 1962-05-16

Similar Documents

Publication Publication Date Title
US2141152A (en) Apparatus and method for the manufacture of pile fabrics
US2225452A (en) Method and apparatus for making a pile fabric
US3157208A (en) Weaving frame having improved weft handling means
US3561496A (en) Device for binding wefts on a shuttleless loom
US3047027A (en) Device for selvedge forming
US3556163A (en) Guide for weft-picking means in a loom
US2080784A (en) Loom having stationary weft supplies
US2300281A (en) Selvage-forming device
US2609009A (en) Twisted selvage cutter
US3620260A (en) Loom tension-frame holding the woven fabric over its entire width
US3450167A (en) Looms for weaving cut-pile fabrics
US3455343A (en) Temples for shuttleless looms
US2795243A (en) Jacketboard
GB1341281A (en) Apparatus for forming a selvage on a loom
US1966935A (en) Textile machinery
US3695302A (en) Method and apparatus for producing a terry fabric on a loom
US2171367A (en) Apparatus for and method of weaving pile fabrics
US3943978A (en) Method of and apparatus for lateral tensioning of fabrics
CN103820930B (zh) 一种可变异形筘
US1802020A (en) Thread holding and trimming attachment for looms
GB1273022A (en) Improvements in picking mechanism for looms for weaving
US1973335A (en) Axminster loom
EP0310847A1 (fr) Peigne pour métiers à tisser
US1715985A (en) Thread cutter for box looms
US3229724A (en) Selvedge-forming mechanisms for shuttleless weaving looms and the like