US3360013A - Control mechanisms in a textile loom - Google Patents

Control mechanisms in a textile loom Download PDF

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Publication number
US3360013A
US3360013A US539680A US53968066A US3360013A US 3360013 A US3360013 A US 3360013A US 539680 A US539680 A US 539680A US 53968066 A US53968066 A US 53968066A US 3360013 A US3360013 A US 3360013A
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United States
Prior art keywords
filling
loom
fabric
filling yarn
yarn
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
US539680A
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English (en)
Inventor
Thomas J Coleman
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.)
Riegel Textile Corp
Original Assignee
Riegel Textile Corp
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 Riegel Textile Corp filed Critical Riegel Textile Corp
Priority to US539680A priority Critical patent/US3360013A/en
Priority to ES338532A priority patent/ES338532A1/es
Priority to CH444167A priority patent/CH448927A/de
Priority to BE696580D priority patent/BE696580A/xx
Application granted granted Critical
Publication of US3360013A publication Critical patent/US3360013A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • D03D51/34—Weft stop motions
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D45/00—Looms with automatic weft replenishment
    • D03D45/20—Changing bobbins, cops or other loom components carried by the shuttle
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/007—Loom optimisation
    • 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
    • D03D51/34—Weft stop motions
    • D03D51/36—Centre weft forks

Definitions

  • This invention relates to control mechanisms in a textile loom and more particularly to control mechanisms .which will operate upon breakage of a filling yarn to allow a new filling yarn to be laid in alongside the broken filling yarn without stopping operation of the loom.
  • the mechanisms of this invention are particularly adapted for use in a centerfork loom, such as the Draper Model X-3 commercially available from the Draper Corporation of Hopedale, Massachusetts. Centerfork looms of this type are widely used for preparing rough textured fabrics and soft-filled goods intended for use as diapers, towels and various types of napped products.
  • the centerfork itself is a sensitive feeler mounted adjacent to the path of travel of the shuttle which detects breaks in the filling yarn and norm-ally actuates a mechanism which stops off the loom when this occurs.
  • the Weaver when the filling yarn breaks, the Weaver must not only remove and rethread the shuttle, but must also manually let-back the take-up mechanism to prevent formation of a thin place in the fabric. For fancy and hard-filled cloth, it is also necessary to manually pull out the broken pick to prevent formation of a thick place in the goods.
  • the above object may be accomplished by providing in a textile loom, the combination of .an automatic filling changer means adapted upon actuation to replenish the supply of filling yarn being utilized in the operation of the loom, a let-back means adapted upon actuation to permit the fabric to backup in the loom to the position occupied when the last filling yarn was inserted into the fabric, a broken filling detector means adapted to detect a broken filling yarn as it is inserted into the fabric during the weaving of the fabric on the loom, and control means operatively connected with said automatic filling changer means, said letback means and said broken filling detector means and being adapted to be actuated by said broken filling detector means upon breakage of a filling yarn during the weaving operation of the loom to .actuate said automatic filling changer means and to actuate said let-bck means so that upon breakage of a filling yarn during operation of the loom, the filling yarn supply will be automatically replenished and the fabric will be automatically let-back allowing
  • FIGURE 1 is a perspective view of a textile loom embodying the control mechanisms of this invention in which some of the conventional portions of the loom are shown in dotted lines;
  • FIGURE 2 is an enlarged perspective view, Ibroken away, of the shuttle race of the loom of FIGURE 1 illustrating a centerfork feeler mechanism;
  • FIGURE 3 is an enlarged perspective View of a portion of the loom of FIGURE I particularly illustrating some of the mechanisms of this invention in their relative positions before a break in a filling yarn occurs;
  • FIGURE 4 is an enlarged perspective view of a portion of the loom of FIGURE 1 particularly illustrating some of the mechanisms of this invention in their relative positions when a break in a filling yarn occurs.
  • FIG. 10 there is shown a Draper Model X-3 textile loom, referred to above, generally indicated by the reference numeral 10.
  • the conventional portions of the textile loom 10 which are not concerned with the mechanisms of this invention are shown in dotted lines in FIGURE 1 and are well understood to those of ordinary skill in the art and will not be described in detail herein.
  • the textile loom 10 includes an automatic filling changer mechanism, generally indicated at 11, mounted on the loom 10.
  • the automatic filling changer mechanism 11 includes a bobbin filling feeler actuator mechanism, generally indicated at 12.
  • the bobbin filling feeler actuator mechanism 12 comprises a filling feeler 13 and appropriate linkages 14, 15, 16, 17, etc., which connect the filling feeler 13 with the filling changer mechanism 11 to operate in a well-known manner to sense an empty bobbin in the shuttle of the loomto automatically actuate the filling changer mechanism to replenish the supply of filling yarn being utilized in the weaving operation of the loom.
  • the operation of this automatic filling changer means is well known to those with ordinary skill in the art and therefore further details of the operation will not be given herein.
  • the textile loom 10 further includes a let-back mechanism, generally indicated at 20, which is adapted upon actuation to permit the fabric to backup in the loom to the position occupied when the last filling yarn was inserted into the fabric during the weaving operation of the loom.
  • This let-back mechanism 20 includes a let-back ratchet wheel 21, which is connected by suitable gearing to the conventional take-up roll of the loom, and a pawl 22 which when engaged with the teeth on the ratchet wheel 21 prevents backup of the fabric in the loom.
  • the pawl 22 advances one tooth on the ratchet wheel 21 for each insertion of a filling yarn or for each pick during the weaving operation of the loom.
  • the pawl 22 Upon act-nation of the let-back mechanism 20, the pawl 22 is disengaged from the ratchet wheel 21 allowing the normal tension on the warp to back the woven fabric up in the loom one tooth on the ratchet wheel or to the position occupied when the last filling yarn was inserted into the fabric. As may be seen in FIGURES 3 and 4, the pawl 22 is pivotally mounted on the loom frame by an arm 23.
  • the textile loom 10 further includes a centerfork filling feeler mechanism, generally indicated at 30, which is adapted to detect a break in a filling yarn as it is inserted into the fabric during weaving of the fabric on the loom.
  • the centerfork filling feeler mechanism 30 includes a centerfork feeler 31 pivotally mounted on the lay of the loom and received in a recess in the shuttle race of the loom.
  • An oscillating rod 32 is slidably carried in brackets 33 and 34 and in the centerfork feeler 31 and is adapted to be oscillated back and forth in the direction of the arrow shown in FIGURE 2. The rod 32 makes one complete oscillation during each pick or insertion of a filling yarn during the weaving operation of the loom.
  • the centerfork feeler mechanism 30 further includes a cam device including a cam base 38 fixedly mounted on the rod 32 to oscillate therewith and having mounted thereon a centerfork cam 35 and a centerfork crankshaft stop 36.
  • the centerfork feeler 31 also includes a curved centerfork crankshaft 37 adapted to be engaged by the cam 35 during an oscillation of the rod 32 to raise the centerfork feeler 31 to a position above the shuttle race of the loom so that the shuttle may pass thereunder and the filling yarn being inserted into the fabric will hold the centerfork feeler 31 in a position above the cam race when it is not broken.
  • the textile loom 10 further includes control mechanisms, generally indicated at 40, which are operatively connected with the centerfork feeler mechanism 30, the bobbin filling feeler actuator mechanism 12 and the letback mechanism 20 so as to be adapted to be actuated by the centerfork feeler mechanism 30 upon breakage of a filling yarn during the weaving operation of the loom to in turn actuate the bobbin filling feeler actuator mechanism 12 for actuating the automatic filling changer mechanism 11 and to actuate the let-back mechanism 20 so that upon breakage of a filling yarn during the weaving operation of the 10 m, the filling yarn supply will be automatically replenished and the fabric will be automatically let-back allowing a new filling yarn to be laid in alongside the broken filling yarn without stopping operation of the loom.
  • control mechanisms generally indicated at 40, which are operatively connected with the centerfork feeler mechanism 30, the bobbin filling feeler actuator mechanism 12 and the letback mechanism 20 so as to be adapted to be actuated by the centerfork feeler mechanism 30 upon breakage
  • the control mechanisms 40 comprise a bunter member 41 extending in a horizontal direction in close proximity to the end of the rod 32 extending to the left of the bracket 33, as viewed in FIGURE 2.
  • the hunter 41 is connected through a shaft 42 to a reversing link 43 which is in turn connected through a tripping lever connecting arm 44 to a tripping lever pivot bolt and sleeve 45 mounted on the loom 10.
  • the tripping lever bolt and sleeve 45 is in turn connected to a tripping lever 46 which in turn hooks around a lifting lever connecting rod clamp and hook 47 attached to the rod 14.
  • the reversing link 43 also has connected thereto a hold-back pawl lifting rod 50 connected thereto by a stud and collar arrangement 51 on one end thereof.
  • the other end of the hold-back pawl lifting rod 50 is connected to the hold-back pawl 22 by a hold-back link 52.
  • This movement of the reversing link 43 will also lift the hold-back pawl lifting rod 50 in the direction of the arrow shown in FIGURE 4 to lift the let-back pawl 22 from the ratchet wheel 21 allowing the tension in the warp to let-back the fabric and allow a new filling yarn to be laid alongside the broken filling yarn without stopping of the loom. It is obvious that on the next pick or the next insertion of a filling yarn into the fabric being woven on the loom, the centerfortk filling feeler 30 will be raised by action of the cam 35 so that the motion of the above-described control mechanisms will be returned to normal position for continuing operation of the loom.
  • this invention provides control mechanisms in a textile loom, particularly a centerfork textile loom, for detecting a broken filling yarn as it is inserted into the fabric during weaving of the fabric on the loom to automatically replenish the filling yarn supply for the loom and automatically let-back the fabric being woven by the loom allowing a new filling yarn to be laid in alongside the broken filling yarn with out stopping operation of the loom.
  • an automatic filling changer mechanism adapted to replenish the supply of filling yarn being utilized in the weaving operation of the loom, a let-back mechanism adapted upon actuation to permit the fabric to back up in the loom to the position occupied when the last filling yarn was inserted into the fabric, and a centerfork mechanism adapted to detect a break in a filling yarn as it is inserted into the fabric during weaving of the fabric on the loom
  • a filling fork feeler means pivotally mounted on and approximately at the center of said lay and adapted to assume a first position when the filling yarn being inserted into the fabric is not broken and adapted to assume a second position when the filling yarn being inserted into the fabric is broken and an oscillating rod means mounted on said lay and operatively associated with said filling fork feeler means and adapted to make a complete oscillation when said filling fork feeler means is in said first position and adapted to make an incomplete oscillation when said filling fork feeler means is
  • said filling changer mechanism includes a bobbin filling feeler actuator means adapted to actuate said filling changer mechanism when the supply of filling yarn is exhausted
  • said control mechanisms comprise a movable bunter member mounted on said loom and being responsive to and adapted to be moved by said oscillating rod means during an incomplete oscillation thereof when a broken filling yarn is detected by said filling fork feeler means, a movable reversing link con-' nected to said bunter member and being responsive to and adapted to be moved upon movement of said hunter member, and means connecting said reversing link to and adapted to actuate said bobbin filling feeler actuator means and said let-back mechanism upon movement of said reversing link.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US539680A 1966-04-04 1966-04-04 Control mechanisms in a textile loom Expired - Lifetime US3360013A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US539680A US3360013A (en) 1966-04-04 1966-04-04 Control mechanisms in a textile loom
ES338532A ES338532A1 (es) 1966-04-04 1967-03-28 Perfeccionamientos en los mecanismos de control para tela- res.
CH444167A CH448927A (de) 1966-04-04 1967-03-30 Ueberwachungseinrichtung in einem Webstuhl
BE696580D BE696580A (en0) 1966-04-04 1967-04-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US539680A US3360013A (en) 1966-04-04 1966-04-04 Control mechanisms in a textile loom

Publications (1)

Publication Number Publication Date
US3360013A true US3360013A (en) 1967-12-26

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US539680A Expired - Lifetime US3360013A (en) 1966-04-04 1966-04-04 Control mechanisms in a textile loom

Country Status (4)

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US (1) US3360013A (en0)
BE (1) BE696580A (en0)
CH (1) CH448927A (en0)
ES (1) ES338532A1 (en0)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191303661A (en) * 1912-02-13 1913-06-19 Siemens Schuckertwerke Gmbh Improvements in Automatic Weft-replenishing Looms.
US1277357A (en) * 1915-04-28 1918-09-03 Draper Corp Filling-replenishing loom.
US1294871A (en) * 1917-02-26 1919-02-18 Ludlow Mfg Associates Automatic filling-changing loom.
US1479154A (en) * 1919-08-11 1924-01-01 Hopedale Mfg Co Take-up mechanism for looms
US1541303A (en) * 1923-06-18 1925-06-09 Crompton & Knowles Loom Works Let-back mechanism for looms
US1896337A (en) * 1932-03-16 1933-02-07 Draper Corp Loom

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191303661A (en) * 1912-02-13 1913-06-19 Siemens Schuckertwerke Gmbh Improvements in Automatic Weft-replenishing Looms.
US1277357A (en) * 1915-04-28 1918-09-03 Draper Corp Filling-replenishing loom.
US1294871A (en) * 1917-02-26 1919-02-18 Ludlow Mfg Associates Automatic filling-changing loom.
US1479154A (en) * 1919-08-11 1924-01-01 Hopedale Mfg Co Take-up mechanism for looms
US1541303A (en) * 1923-06-18 1925-06-09 Crompton & Knowles Loom Works Let-back mechanism for looms
US1896337A (en) * 1932-03-16 1933-02-07 Draper Corp Loom

Also Published As

Publication number Publication date
ES338532A1 (es) 1968-04-01
BE696580A (en0) 1967-10-04
CH448927A (de) 1967-12-15

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