US3570549A - Device for inserting, positioning and beating up the weft thread in a loom - Google Patents

Device for inserting, positioning and beating up the weft thread in a loom Download PDF

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Publication number
US3570549A
US3570549A US811971A US3570549DA US3570549A US 3570549 A US3570549 A US 3570549A US 811971 A US811971 A US 811971A US 3570549D A US3570549D A US 3570549DA US 3570549 A US3570549 A US 3570549A
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US
United States
Prior art keywords
inserter
weft thread
loom
shed
beating
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
US811971A
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English (en)
Inventor
Ramon Balaguer Golobart
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Individual
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Individual
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Publication date
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Publication of US3570549A publication Critical patent/US3570549A/en
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J5/00—Shuttles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J2700/00—Auxiliary apparatus associated with looms; Weavening combined with other operations; Shuttles
    • D03J2700/10—Shuttles
    • D03J2700/14—Gripper shuttles

Definitions

  • the present invention relates to a device for inserting and positioning the weft thread in the shed of a loom, of the type in which the inserter, besides introducing the weft thread, performs the beating up of the thread against the fabric being formed, said inserter taking the place of the batten.
  • Another system is that made up of two aligned rigid inserters with rectilinear back and forth movement one after the other so that one of the two inserting elements introduces the weft thread coming from a stationary bobbin located on one side of the loom and simultaneously this inserting element.
  • the width of the fabric is very limited, because the inserting element has only a guide at its entry into the shed and in its travel through the shed it rests on the weft thread by itself, with a bending in the inserting element occurring, which logically increases as it advances, so that at the end of the travel of the inserting element, it does not exert the same pressure as at the entry into the shed, which results in producing fabrics with an irregular weave.
  • the device of the present invention is made up of an inserter means which comprises a freely rotating disc, which projects from the inserter and at least one roller that also rotates freely, which projects from the inserter on the opposite side of the disc, so that in the lineal movement of the inserter through the shed, the disc, by rotary contact, forces the weft thread home against the formation line of the fabric and simultaneously the roller is constantly in rotary contact with the teeth of a stationary reed, or the pressure that the roller exerts against the reed is the same as that the disc exerts against the line of formation of the fabric but in the opposite direction.
  • said inserter is provided on the front free end with means of fastening the weft thread to be drawn through the shed, these means being both mounted in the vicinity of the rotating disc and rollers, while at its back end the inserter is joined to the translation element of the loom.
  • FIG. I is a perspective view of the inserter means with the elements for fastening the weft thread in the unclamped position, the upper protective cover of the inserter being represented by fine dashed lines, and the weft thread by heavy dashed lines for greater clarity;
  • FIG. 2 is a perspective view of inserter with elements for fastening the weft thread in clamping position
  • FIG. 3 is a schematic plan view at the moment the inserter enters the shed
  • FIG. 4 is a schematic plan view of the inserter already introduced into the shed. 1
  • FIG. 5 is a schematic plan' view of the inserter beginning its return movement to its initial position
  • FIG. 6 is a view looking in the direction of arrow A of FIG. 1, showing the means of fastening the weft thread;
  • FIG. 7 is a sectional view along 8-8 of FIG. 4.
  • the inserting means which as a whole is designated by l, comprises a base 2, a vertical wall 3 and a cover 4, FIG. 2, with orifices Sand 6, for passage of weft thread 7. Between base 2 and cover 4 is supported a vertical shaft 8 that is solid with base 2, and fastened to cover 4 by a screw 9. On vertical shaft 8 is placed a rotatable disc 10, which projects sideways from base 2.
  • the exposed side of the front end 21 of base 2 is bent upwardly at 22 to support a flat horizontally projecting portion 23 which is provided with an orifice 40 through which the weft thread 7 passes downwardly from the orifice 5 in the cover 4.
  • a shaft 30 which pivotally supports an arm 24 which extends through an opening (not shown) in the bent portion 22 so as to be positioned below portion 23.
  • the free end 25 of this arm' is provided with an orifice 26 through which the thread passes from orifice 40.
  • a flat spring member 27 mounted on shaft 30, and turning with arm 24 is a flat spring member 27, connected with the arm by nuts 31 and 32. The spring extends above the portion 23 and at its free end 28 is provided with a downwardly extending semispherical projection 29.
  • the rear end 33 of base 2, FIGS. 1 and 2 has holes 34, 35, 36, and 37 for fastening inserter I to the reciprocating element 33, FIGS. 3, 4, and 5.
  • the inserter means 1 starts its advance movement to be introduced into shed 39 as in FIG. 3, end 25 of the small movable arm 24 hits stop 41 located near edge 42 of fabric 43, whereby this arm 24 makes a turn on shaft 30 and, consequently, imparts a turn to flat spring 27, FIG. 6, until semispherical projection 29 is housed in orifice 40 of flat surface 23 clamping weft thread.7 which passes through said orifice 40, FIG. 2.
  • cutting elements 44 and 45 Prior to this initial movement of inserter 1, cutting elements 44 and 45, of a known type, have cut the weft thread 7.
  • rollers 13 and 14 make contact and slide on the teeth of stationary reed 46 and at the same time rotating disc 10 contacts and presses in its advance weft thread 7 already introduced in shed 39, forcefully beating weft thread 7 home against the line of formation 47 of fabric 43 with a pressure equal to and in the opposite direction to the pressure that rollers 13 and I4 exert against reed 46.
  • inserter I draws with it and introduces the new weft thread 48 into shed 39.
  • Device for inserting and beating up weft threads in a loom having a stationary reed and an element reciprocatorily movable with respect to a shed formed by the loom, comprising inserter means, a disc, means for rotatably supporting the disc on the inserter means for beating up a weft thread for inserting it into a shed and for releasing said weft thread when inserted,
  • said means for resisting lateral movement includes at least one roller. and means for mounting the roller on the inserter means for rolling contact with said stationary reed.
  • said means for gripping and releasing a weft thread includes a flat surface provided with an orifice through which said weft thread passes, a movable spring element, and means for moving said spring element into and out of engagement with a weft thread in said orifice.
  • said means for moving the spring element includes an arm pivotally mounted on the inserter means.
  • said means for moving the spring element includes stop means attached to said loom adjacent the side of the fabric being woven.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US811971A 1968-04-25 1969-04-01 Device for inserting, positioning and beating up the weft thread in a loom Expired - Lifetime US3570549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES353511A ES353511A1 (es) 1968-04-25 1968-04-25 Dispositivo insertador y posicionador del hilo de trama conel correspondiente apretado del mismo.

Publications (1)

Publication Number Publication Date
US3570549A true US3570549A (en) 1971-03-16

Family

ID=8448905

Family Applications (1)

Application Number Title Priority Date Filing Date
US811971A Expired - Lifetime US3570549A (en) 1968-04-25 1969-04-01 Device for inserting, positioning and beating up the weft thread in a loom

Country Status (8)

Country Link
US (1) US3570549A (ru)
JP (1) JPS4930034B1 (ru)
CH (1) CH488832A (ru)
CS (1) CS154269B2 (ru)
DE (1) DE1914397B2 (ru)
ES (1) ES353511A1 (ru)
FR (1) FR2006894A1 (ru)
GB (1) GB1213767A (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110971A (ru) * 1973-03-01 1974-10-22

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE520492C2 (sv) * 2000-03-06 2003-07-15 Biteam Ab Förfarande och anordning för textiltillverkning

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747098A (en) * 1926-04-19 1930-02-11 F A Whitney Carriage Company Loom
GB998026A (en) * 1961-01-30 1965-07-14 T E L S A S P A Weaving loom, especially for heavy fabrics, such as fabrics of glass fibre, hemp fibre and synthetic fibres

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747098A (en) * 1926-04-19 1930-02-11 F A Whitney Carriage Company Loom
GB998026A (en) * 1961-01-30 1965-07-14 T E L S A S P A Weaving loom, especially for heavy fabrics, such as fabrics of glass fibre, hemp fibre and synthetic fibres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1,057,989 German Pub 8 1956 to Shimwell 139/127 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110971A (ru) * 1973-03-01 1974-10-22
JPS5536734B2 (ru) * 1973-03-01 1980-09-24

Also Published As

Publication number Publication date
ES353511A1 (es) 1969-09-01
CH488832A (de) 1970-04-15
JPS4930034B1 (ru) 1974-08-09
DE1914397C3 (ru) 1978-03-02
FR2006894A1 (ru) 1970-01-02
GB1213767A (en) 1970-11-25
DE1914397B2 (de) 1977-07-14
CS154269B2 (ru) 1974-03-29
DE1914397A1 (de) 1969-12-04

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