US3749137A - Drive for producing movement of the lay in weaving looms - Google Patents

Drive for producing movement of the lay in weaving looms Download PDF

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Publication number
US3749137A
US3749137A US00209993A US3749137DA US3749137A US 3749137 A US3749137 A US 3749137A US 00209993 A US00209993 A US 00209993A US 3749137D A US3749137D A US 3749137DA US 3749137 A US3749137 A US 3749137A
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United States
Prior art keywords
lay
link
links
movement
eccentric drive
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Expired - Lifetime
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US00209993A
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English (en)
Inventor
H Jager
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JAEGER E KG
JAGER E KG DT
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JAEGER E KG
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    • 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
    • D03D49/60—Construction or operation of slay

Definitions

  • FIGS DRIVE FOR PRODUCING MOVEMENT OF THE LAY IN WEAVING LOOMS BACKGROUND OF THE INVENTION 1.
  • the invention relates to a drive for movement of the lay, especially for wire looms and looms for the manufacture of heavy thick fabrics, which require a large stroke force, in which the movement of the thread is accomplished through a double lever system driven by an eccentric and pivoted on one hand to the lay and on the other hand to the stand.
  • the known cam drives are besides subject to very quick wear.
  • the purpose of the invention is to provide a drive for looms for heavy thick webs such that even during faster operation of the loom a sufficient retardation or interruption of the thread movement sufficient for the introduction of the weft thread or wire is achieved.
  • a driven cam is selected which exerts a positive force on a connecting rod, for example pivoted on the stand, forming part of the double lever system.
  • the drive according to the invention has a very great lay rest period, which as compared to the rest period which can be achieved with the known drive lies in the range of about 120.
  • the greater rest period results even in a fast running loom in a trouble-free transfer of the weft threads or wires.
  • the leg of the double-lever system connected to the lay can be constructed in a known manner as a link, with which the leg of a guide crank directed towards the double-lever system engages.
  • a special construction according to the invention is an angle piece on the leg of the double-lever system which is pivoted to the stand, the free ends of which engage against two different cams, one of which works on the lay stop cam which operates on the leg of the single piece system adjacent the double-lever system while the other cam which engages the other leg for the return movement.
  • This double stroke can be realized with the drive according to the invention, by making the connecting bolts of the doublelever system connecting rod displaceable with respect to the extended position of the double-lever system out of the previously mentioned connecting line between the lay link and the stand link beyond the extended position.
  • the drive is provided with an arrangement of connecting bolts at the level of the aforesaid connec tion line between the lay link and the stand link in the extended position of the bell crank lever link, the basic stroke is achieved. If the connecting bolt on the contrary is moved upwardly beyond the connecting line, there results in this arrangement the double stroke sought for, which results in the repeated cycle of the extended position of the double-lever system in a single cycle of the cam which produces the movement of the lay.
  • Single and double strokes can also be realized if an adjustability of the roller adjacent to the double action lever system link with respect to the cam is provided, in which the use of an angle piece as the connecting rod of the double action action lever system connected to the stand requires additionally an adjustability of the position of the legs of the angle piece with relation to one another, in order to ensure and maintain an engagement of the roll on the cam discs without play, even with eccentric positioning of the rolls.
  • the adjustability of the position of the arms of the angle piece remains constant, if the roll is centrally journalled and is provided for their axes in the arms of angle piece slots on a radius of the stand link through the ideal axis point.
  • FIG. 1 shows a drive arrangement for a single stroke in the rear dead center
  • FIG. 2 shows the same drive in theforward dead center
  • FIG. 3 shows a drive arrangement for double stroke in the rear dead center position
  • FIG. 4 shows the system in the forward dead center position
  • FIG. 5 shows such a system in the position where it has advanced over the forward dead center position
  • FIG. 6 shows such a system in the position diametrically opposite the position of FIG. 5 in the forward dead center position.
  • 11 is the web lay, which is pivoted at 12 on a web lay base and is swingable in the direction of the arrow.
  • the swinging movement of the lay 11 is produced through the double lever system 13, 14, 14 of which the lever 13 is pivoted at 16 at the free end of the lay 11 and the other lever 14, 14' at 17 on the loom frame, in connection with the driven double cam 19, 19' of which the roll 141 mounted on the lever arm 14 engages the cam 19 forces the lay 11 into the forward dead center position (FIG. 2) while the roll 141' arranged on the lever arm 14 engages cam 19 which positively forces the lay 1 l to the rear dead center positlOn.
  • roller 141 and 141 are so arranged with respect to each other that they engage without play against the cam 19 and 19' which are secured to each other.
  • the lever 13 and the angle lever 14, 14' which make up the crank lever system are connected by a bolt 21, which engages through slots 22 provided in the lever 13 and in the lever arm 14 in the bell crank lever 14, 14' and can be secured at various positions therein.
  • the connecting bolt 21 at the upper ends of the slots 22 operates the loom with a so-called double stroke.
  • the double lever system 13,14,14' operates, beginning from a rear dead center position (FIG. 3), first the forward dead center position (FIG. 4) where the lay 11 stops a first time, then the double lever system 13,14,14 swings over the extended position of the lever 13 and the lever arm 14 (the plane defined by the pivots 16,21, 17) on beyond by the distance x (FIG. whereby the lay 11 is drawn back to the corresponding piece, whereas the lever 13 and the lever arm 14 procccd further to the dead center position (FIG. 6), wherein a second stoppage of the lay 11 occurs. Then follows further the return movement into the rear dead center position (FIG. 3).
  • a drive mechanism comprising a double lever system including two links, means pivotally connecting the links together at one end, means pivotally mounting a first of the links on the lay and the second link on the frame for movement between a first position in which the links are substantially aligned with each other and a second position in which they form a substantial angle with each other, and eccentric drive means for one of the links including means to exert a positive force on such link to produce movement of the lay.
  • a device as claimed in claim 1 including means to exert a force acting in the opposite direction from said eccentric drive means.
  • a device as claimed in claim 1 having a part secured to said second link and extending at an angle thereto, and second eccentric drive means for said second link operating on said part to exert a force thereon to produce movement of the lay in the opposite direction from that produced by the first link.
  • each of said force exerting means includes a disc cam.
  • said means pivotally connecting the links includes a bolt and said links have slots transverse to the line joining their pivot axes and said bolt is adjustable in said slots.
  • a device as claimed in claim 7 including means to exert a force acting in the opposite direction from said eccentric. drive means.
  • a device as claimed in claim 7, having a part secured to said second link and extending at an angle thereto, and second eccentric drive means for said second link to produce movement of the lay in the opposite direction from that produced by the first link.
  • each of said force exerting means includes a disc cam.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US00209993A 1971-01-15 1971-12-20 Drive for producing movement of the lay in weaving looms Expired - Lifetime US3749137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712101720 DE2101720A1 (de) 1971-01-15 1971-01-15 Antrieb für die Ladenbewegung von Webstühlen

Publications (1)

Publication Number Publication Date
US3749137A true US3749137A (en) 1973-07-31

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ID=5795946

Family Applications (1)

Application Number Title Priority Date Filing Date
US00209993A Expired - Lifetime US3749137A (en) 1971-01-15 1971-12-20 Drive for producing movement of the lay in weaving looms

Country Status (7)

Country Link
US (1) US3749137A (OSRAM)
DD (1) DD97229A5 (OSRAM)
DE (1) DE2101720A1 (OSRAM)
FR (1) FR2121587A1 (OSRAM)
GB (1) GB1350181A (OSRAM)
IT (1) IT946549B (OSRAM)
SE (1) SE366349B (OSRAM)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111405A1 (de) * 1991-04-09 1992-10-15 Jaeger Emil Gmbh Co Kg Antrieb fuer die ladenbewegung eines webstuhles
EP1077277A1 (de) * 1999-05-28 2001-02-21 Lindauer Dornier Gesellschaft M.B.H Verfahren zur Steuerung des Bewegungsablaufes, der Webladenwelle einer Webmaschine, insbesondere einer Frottierwebmaschine
CN102442529A (zh) * 2011-09-28 2012-05-09 沈阳慧宇真空技术有限公司 热核聚变试验堆中传输清洗电极的随动传动机构
CN113046899A (zh) * 2021-03-17 2021-06-29 山东日发纺织机械有限公司 一种打纬机构和织机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743661A1 (de) * 1987-12-22 1989-07-06 Wangner Gmbh Co Kg Hermann Webladenantrieb fuer eine webmaschine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111405A1 (de) * 1991-04-09 1992-10-15 Jaeger Emil Gmbh Co Kg Antrieb fuer die ladenbewegung eines webstuhles
EP1077277A1 (de) * 1999-05-28 2001-02-21 Lindauer Dornier Gesellschaft M.B.H Verfahren zur Steuerung des Bewegungsablaufes, der Webladenwelle einer Webmaschine, insbesondere einer Frottierwebmaschine
US6230758B1 (en) 1999-05-28 2001-05-15 Lindauer Dornier Gesellschaft Mbh Method for controlling a motion characteristic of a sley shaft for driving a reed
CN102442529A (zh) * 2011-09-28 2012-05-09 沈阳慧宇真空技术有限公司 热核聚变试验堆中传输清洗电极的随动传动机构
CN102442529B (zh) * 2011-09-28 2013-07-31 沈阳慧宇真空技术有限公司 热核聚变试验堆中传输清洗电极的随动传动机构
CN113046899A (zh) * 2021-03-17 2021-06-29 山东日发纺织机械有限公司 一种打纬机构和织机
CN113046899B (zh) * 2021-03-17 2022-03-22 山东日发纺织机械有限公司 一种打纬机构和织机

Also Published As

Publication number Publication date
DD97229A5 (OSRAM) 1973-04-20
DE2101720A1 (de) 1972-09-21
SE366349B (OSRAM) 1974-04-22
GB1350181A (en) 1974-04-18
FR2121587A1 (OSRAM) 1972-08-25
IT946549B (it) 1973-05-21

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