US3727648A - Weaving of ribbons - Google Patents

Weaving of ribbons Download PDF

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Publication number
US3727648A
US3727648A US00162118A US3727648DA US3727648A US 3727648 A US3727648 A US 3727648A US 00162118 A US00162118 A US 00162118A US 3727648D A US3727648D A US 3727648DA US 3727648 A US3727648 A US 3727648A
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Prior art keywords
ribbon
roller
loom
movement
path
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Expired - Lifetime
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US00162118A
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English (en)
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E Essig
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Individual
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Individual
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D35/00—Smallware looms, i.e. looms for weaving ribbons or other narrow fabrics

Definitions

  • Ribbon looms are usually of the type on which a plurality of ribbons are being woven simultaneously, rather than weaving a single ribbon at a time. These ribbons are all withdrawn simultaneously in taut condition. Depending upon the quality of the weft threads used in weaving, such looms have a more or less frequent problem with breakage of weft threads in which case the ribbon where such breakage occurs will have a fault where a plurality of weft threads-usually between four and eightare missing, so that a fault or gap exists in which only warp threads are present. Even rapidly operating thread breakage detectors cannot avoid the occurrence of such faults once the weft threads break.
  • a concomitant object is to provide a method of carrying out the aforementioned operations without incurring the disadvantages of the prior art.
  • one feature 'of the invention resides in a ribbon loom which, briefly stated, comprises ribbon weaving means and ribbon withdrawing means for withdrawing woven ribbon in taut condition from the weaving means in a withdrawal path.
  • ribbon deflecting means comprising at least one shaft extending transversely of the path and at least one roller having a peripheral face one portion of which is smooth and another portion of which is rough, and being eccentrically mounted on the shaft for movement between two end positions in one of which the ribbon slides over the one portion during its movement in the path and another position in which the ribbon slides over the other portion and the latter is offset to one side of the general plane of the path.
  • FIG. 1 is a diagrammatic side view illustrating those components of an embodiment of the invention which are necessary for an understanding, during the weaving operation;
  • FIG. 2 is a view similar to FIG. I but illustrating the embodiment after retardation
  • FIG. 3 is an intermediate position of the embodiment in FIGS. 1 and 2, that is showing the embodiment before it returns from the position of FIG. 1 to that of FIG. 2;
  • FIG. 4 is a view similar to FIG. 1, illustrating a further embodiment of the invention.
  • FIG. 5 is a view similar to FIG. 4 illustrating another embodiment of the invention.
  • FIG. 6 is a diagrammatic illustration of portions of a weaving loom provided with the novel device and
  • FIG. 7 is a somewhat diagrammatic front view showing two of the rollers extending across the loom of FIG. 6.
  • reference numeral 1 identifies a shaft on which a deflecting roller is mounted eccentrically.
  • the portion 3 of the circumferential or peripheral face of the roller 2 is smooth whereas the portion 4 is rough, either being generally roughened, provided with knurling, grooves or the like.
  • the woven ribbon is woven by the weaving loom at the right-hand side of the roller 2 and is withdrawn by the withdrawing device towards the lefthand side of the roller 2 in the direction of the associated arrow, neither the loom nor the withdrawing device being illustrated for the sake of clarity.
  • the ribbon 5 is normally maintained taut and withdrawn in a predetermined path.
  • roller 2 In the position which the roller assumes in FIG. 1 and which is the normal position in which the roller is located when no fault is present in the ribbon 5, it will be seen that the roller 2 is located in its highest eccentric position abutting against an abutment 6which is preferably adjustablewith its region 3 facing upwardly.
  • the ribbon 5 contacts the region 3 and slides without hindrance over this region on its path to the withdrawing device.
  • Some ribbons are woven with low tension and/or have a very smooth or slippery surface.
  • the embodiment of FIG. 4 provides a counter-roller 7 which is advantageously spring-biased by a spring 8 which may abut against a bracket 9, so that the roller 7 presses the ribbon against the circumference ofthe roller 2. This assures a better contact of the ribbon 5 with the region 4 of the roller 2 and guarantees that the ribbon, if it is woven under low tension and/or is slippery, will nevertheless take the roller along from the position of FIG. 2 back to the position of FIG. I after a fault has been repaired.
  • FIG. 5 has the same purpose as the embodiment of FIG. 4, meaning that it is intended to ensure better contact of the ribbon with the roller.
  • the roller 2 is not mounted directly on the shaft 1 which normally is directly mounted in non-illustrated bearings.
  • the roller 10 (or the shaft with respect to the bearings of the latter) will be mounted with the interposition of an advantageously adjustable tension spring 10 which is tensioned when roller 2 is turned from the FIG. 1 position to the FIG. 2 position in the direction of the arrow X.
  • Tension spring 10 can of course be replaced by a torsion spring.
  • FIG. 6 and 7 where reference numeral 11 identifies the frame and 12 the swingably mounted beam whose supports 13 (only one shown while the other is located spaced from it in a plane normal to that of the drawing) swing about the axis 14.
  • the element 12 is driven by the crank drive 15 which turns about the main shaft 16 and is connected with the element 12 by the linkages 17.
  • the shed formation of the warp 18 takes place via two members 19 (one shown) which are operated by any well known actuating device and move in the direction of the double-headed arrow y.
  • the weft threads are inserted in this embodiment by means of shuttles 20, but could also be carried out by other means such as needles.
  • the finished woven ribbon 5 is not passed to the withdrawing device 21 via a stationary breast beam, as is customary in the prior art. Instead, it is passed over the roller 2 of which one is provided for each ribbon woven on the loom.
  • the rollers 2 are shown in different positions for purposes of explanation.
  • the withdrawing device 21 has two driven rollers 22 and 23 and a pressure roller 24 which presses the ribbon 5 against the driven rollers; it will be noticed that the ribbon 5 is placed about the roller 22, whereupon about the roller 24 and then passes between this and the roller 23 out of the device 21 to move downwardly into a non-illustrated container.
  • an individual tensioning device can be provided for each ribbon in the loom intermediate the broad beam and the warp beam in order to prevent the warp threads of a retarded or a slackened ribbon from becoming slack, which would lead to another fault and possibly to breakages in the warp threads.
  • the method and device according to the present invention are not only simple but also highly efficient and very quick and saving in time.
  • the time-consuming release of the pressure rollers on the withdrawing device is avoided.
  • the device according to the present invention can be located in the immediate vicinity of the ribbon abutment edge, the exact determination of the amount by which the ribbon has to be slackened or retarded, and which can be readily achieved by appropriate utilization of the eccentricity of the roller 2, can be easily supervised and obtained. This means that the down time resulting from fault correction of the type here in question is reduced to a minimum and the economics of the loom operation is significantly improved.
  • ribbon withdrawing means for withdrawin woven ribbon from said weaving means in a withdrawa path
  • ribbon deflecting means comprising at least one shaft extending transversely to said path, and at least one roller having a peripheral face one portion of which is smooth and an other portion of which is rough, and being eccentrically mounted on said, shaft for movement between two end positions in one of which the ribbon slides over said one portion during movement in said path, and an other position in which said ribbon slides over said other portion and the latter is offset to one side of the general plane of said path.
  • said spring means comprises torsion spring means.
  • said spring means comprises tension spring means.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US00162118A 1970-08-04 1971-07-30 Weaving of ribbons Expired - Lifetime US3727648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2038601A DE2038601C3 (de) 1970-08-04 1970-08-04 Vorrichtung zum Zurücklassen der Bänder auf Bandwebmaschinen

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US3727648A true US3727648A (en) 1973-04-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856056A (en) * 1972-08-18 1974-12-24 Voest Alpine Montan Ag Battening apparatus in flat weaving machine
US3960185A (en) * 1972-12-11 1976-06-01 Jacob Muller Ribbon weaving loom construction
CN103541128A (zh) * 2013-10-16 2014-01-29 青岛天一集团红旗纺织机械有限公司 一种喷气织机的松经装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US799804A (en) * 1905-01-28 1905-09-19 Otto W Schaum Take-up mechanism for looms.
DE338356C (de) * 1921-06-17 Rudolf Engler Vorrichtung fuer Drahtwebstuehle zum Ausstreichen des Gewebes
FR682481A (fr) * 1929-01-15 1930-05-28 Dauphinoise De Const Mecanique Poitrinière à multiples usages pour métiers à tisser les soieries
US2515897A (en) * 1946-03-01 1950-07-18 Breeze Corp Spark plug cable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE338356C (de) * 1921-06-17 Rudolf Engler Vorrichtung fuer Drahtwebstuehle zum Ausstreichen des Gewebes
US799804A (en) * 1905-01-28 1905-09-19 Otto W Schaum Take-up mechanism for looms.
FR682481A (fr) * 1929-01-15 1930-05-28 Dauphinoise De Const Mecanique Poitrinière à multiples usages pour métiers à tisser les soieries
US2515897A (en) * 1946-03-01 1950-07-18 Breeze Corp Spark plug cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856056A (en) * 1972-08-18 1974-12-24 Voest Alpine Montan Ag Battening apparatus in flat weaving machine
US3960185A (en) * 1972-12-11 1976-06-01 Jacob Muller Ribbon weaving loom construction
CN103541128A (zh) * 2013-10-16 2014-01-29 青岛天一集团红旗纺织机械有限公司 一种喷气织机的松经装置

Also Published As

Publication number Publication date
DE2038601A1 (de) 1972-02-10
DE2038601B2 (de) 1978-04-27
DE2038601C3 (de) 1978-12-21

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