EP0093104A2 - Vorrichtung für eine Jacquard-Maschine - Google Patents

Vorrichtung für eine Jacquard-Maschine Download PDF

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Publication number
EP0093104A2
EP0093104A2 EP83850108A EP83850108A EP0093104A2 EP 0093104 A2 EP0093104 A2 EP 0093104A2 EP 83850108 A EP83850108 A EP 83850108A EP 83850108 A EP83850108 A EP 83850108A EP 0093104 A2 EP0093104 A2 EP 0093104A2
Authority
EP
European Patent Office
Prior art keywords
yarn guiding
spring
guiding means
spring tension
sinkers
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.)
Withdrawn
Application number
EP83850108A
Other languages
English (en)
French (fr)
Other versions
EP0093104A3 (de
Inventor
William Eger Nyboe Lauritsen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0093104A2 publication Critical patent/EP0093104A2/de
Publication of EP0093104A3 publication Critical patent/EP0093104A3/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types

Definitions

  • the present invention relates to a system for use in jacquard machines and the like, including a large number of yarn guide members, sinkers, healds, needles or the like actuable by means of selecting members and operating means and movable between predetermined positions.
  • the spring power in the acceleration and retardation springs for acceleration and braking, catching of the sinkers in the bottom shed and top shed positions, respectively, within certain limits can be set in response to the downwardly directed pull acting upon the sinkers via the harness threads.
  • This pull can vary from one weaving machine to another depending on the sum of downwardly directed pull forces in as much as different numbers of harness threads with their heddles or healds and counter pull springs. Rubber springs can be connected to each sinker.
  • the object of the invention is to provide a system overcoming said inconveniences and ensuring a smooth safe running for the machine.
  • the essential characteristic of the system of the invention is that the yarn guiding means, the sinkers, the healds, the needles or the like are adapted when reaching predetermined positions to come into engagement with resilient means so as to be subjected to pull or stretching action whereby a section of the yarn guiding means or the like situated between said resilient means and a section of the yarn guiding means engaging the operating means will be kept stretched.
  • FIG. 1 is an overall side view showing schematically and in principle, on a largly reduced scale, a jacquard machine which in-accordance with the invention is provided with manually adjustable acceleration/re- tardation spring tension means 3, 4, I, II, III, and IV for collective setting of acceleration and retardation springs 8, 9 which are placed in such a way relative to the sinkers 2 and the sinker guiding or selecting means 25, 26 respectively - according to my Swedish Patent Application No. 7808898-6 and the sinker operating means A and B according to my Swedish Patent No. 396 098 and Patent Application No. 7808771 - as to obtain satisfactory cooperation between these different elements and an adequate power transmission within the sinkers at full normal working speed and for the weaving machine/jacquard machine or for the fabric quality that can be produced in the weaving machine.
  • Fig. 1 four spring tension means are designated by I, II, III and IV and out of these two and two, viz. respectively I, II and III, IV - are setting means for the spring tension means 3 and 4.
  • I, II and III, IV setting means for the spring tension means 3 and 4.
  • the means I is described in more detail here because the function of the spring tension and setting means I, II, III and IV is identical.
  • the construction of the means I, II, III and IV is identical and for greater clarity the latter three have not been provided with any reference numerals in Fig. 1.
  • the spring tension means 3 and 4 which in their simplest embodiment may consist of two relatively movable perforated plates reinforced by bars being vertically oriented thereto or - as will be described below - may be designed according to Figs. 3, 4, 5 and 6, are suspended in beams I4, II 4 , and IV 4 via screw connections and link systems I 5 , I 6 , I 7 mounted each on one side of a so-called sinker package.
  • Each of the setting means I, II, III and VII is in turn suspended in an eccenter mechanism I 2 I3 and mounted each on one shaft I 1 , in pairs on either side of the sinker system.
  • the spring tension means 3 and 4 carry, on their two opposite sides, rolls I 8 , II 8 , II 8 , IV 8 running vertically along supporting bars I 9 , II 9 , III 9' IV 9 whereby the means 3 and 4 are given checked vertical movements.
  • the parallel beams I4, II 4' III 4 and IV 4 are fixed by means of screw connections I 5 and nuts I 10' I 11 . By loosening these and turning them in one or the other direction the screw connections and the spring tension means 3 and 4 connected therewith can be manually vertically moved to different heights.
  • the shafts can in this connection move at most a half revolution between positions for minimum tension in the springs designated 8 and 9, corresponding to the distances S and S l .
  • the step motors can obtain their control impulses from e.g. electrically active dynamic potentiometers, dynamometers or the like inertia sensing means attached e.g. to the sinker operating means A and B.
  • the acceleration and retardation springs 8 and 9 accelerate and brake the sinkers in their opposite end positions because the springs and the spring tension means 3 and 4 are placed at the uppermost and lowermost positions of the sinker ends. Pull forces will always be exerted in the sinkers between their abutment beads or projections designated 6 and 7 which are captured by the sinker operating means A and B and the springs 8 and 9 which are kept in abutment with the spring tension means 3 and 4. This prevents bulging and consequently unnecessary vibration of the sinkers.
  • the springs 8 and 9 are compressed between the spring tension means 3 and 4, respectively, and at abutment means 10 and 11 respectively attached to both ends of each sinker by means of a snap lock device 10, 11, 12, 13, 14 shown in Fig. 2.
  • the snap lock device includes an abutment sleeve body 12 and a U-shaped means 12 at a longer shank provided with a hook-shaped end portion 12 1 .
  • At the one end portion of the abutment sleeve body 11 is an eccentrically situated axial bore 11 1 and a shorter shank 12 2 is inserted therein to keep said U-shaped means in position.
  • the longer shank provided with the hook-shaped end portion 12 1 extends along an axial slit towards and into a centrical bottom bore 11 2 at the opposite sleeve body end.
  • a tangential recess 14 Arranged inwardly of the slit in the portion of the sleeve body 11 situated beyond the bottom of the last-mentioned bore 11 2 is a tangential recess 14.
  • the bent-over end of the sinker 2 is intended to be inserted into the bore 11 3 where it is snap locked by the hook-shaped end 12 1 being snapped over it.
  • the U-bent end portion 12 3 of the means 12 is adapted to serve as an attachment eye for a harness strap or for harness threads 15.
  • Figs. 3 and 4 show, on an approximately natural scale, parts of an embodiment of the schematically illustrated spring tension means 3 and 4 in Fig. 1.
  • Figs. 3 and 4 show only the uppermost spring tension means 3 but since the two spring tension means 3 and 4 can be of identical design numeral 4 corresponding to the bore or plate 4 in Fig. 1 has been put within parentheses.
  • the spring tension means 3 and 4 in Fig. 1 symbolize the supporting bars 3a (4a), .3b (4b), 3c (4c) and 3d (4d) on which the spring tension means proper, designated 18, are borne.
  • the spring tension means 18 include vertically positioned angle or L-bars of such a height that sufficient bending strength will be obtained.
  • the angle bars are at their ends formed with lower portions 19 which rest in openings formed between the vertically and angularily adjustable support bars 3a (4a), 3b (4b), 3c (4c) and 3d (4d).
  • the angle bars 18 rest substantially on the support bars 3a (4a) and 3d (4d) which, in turn, are suspended in the spring tension means I, II, III and IV as shown in Fig. 1.
  • the lower outer ends of the angle or L-bars extend through parallel vertical slits 20 in bars 22, 23 fixedly mounted on the outside of the support bars in the machine and in this way they can maintain their equal interspaces and ver- ticality independently of vertical displacement.
  • Another angle or L-shaped locking bar 17 bears against one portion, the narrower one, at the top of the angle bar 18.
  • the lock bar is at even intervals perforated with oblong holes 16 which are shown in Figs. 3 and 5. These oblong holes correspond with similar holes in the spring tension bar 18.
  • round holes are formed in which the sinkers 2 move up and down. If sinkers 2 are to be shifted the lock bar is displaced so that the oblong holes completely correspond which each other, whereby the sinkers 2 with its abutment beads or studs 6, 7 and guide hooks freely can be pulled therethrough.
  • This is shown in a section through the angle bars 17 and 18 adjacent the sinker 2 seen to the left in Fig. 3.
  • Figs. 3 and 4 show three sinkers localized in their lowermost turning positions in which the springs 8 are compressed.
  • Fig. 6 is a top view showing the support bars 4b and 4c and the sinkers 2, which are indicated by black dots, acceleration and retardation springs 8 and oblong holes 16 in lock bars 17 on the top of spring tension bars 18. Further the fixed bars 22, 23 with the parallel slits 21 indicated by broken lines can be seen.
  • the figure also shows a cross-section through air impulse channels 27, of which only two are partly shown in Fig. 4. These channels extend across the uppermost spring tension means 3 in Fig. 1 with its spring tension bars 18 according to Fig. 4, said channel 27 being vertically mounted in rows in the openings between each spring tension bar 18 and lock bar 17. For greater clarity said pipes are not shown in Fig. 1 but so is the positioning of the guide bars 25 and 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Knitting Machines (AREA)
EP83850108A 1982-04-22 1983-04-22 Vorrichtung für eine Jacquard-Maschine Withdrawn EP0093104A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8202527 1982-04-22
SE8202527 1982-04-22

Publications (2)

Publication Number Publication Date
EP0093104A2 true EP0093104A2 (de) 1983-11-02
EP0093104A3 EP0093104A3 (de) 1985-07-31

Family

ID=20346602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83850108A Withdrawn EP0093104A3 (de) 1982-04-22 1983-04-22 Vorrichtung für eine Jacquard-Maschine

Country Status (2)

Country Link
EP (1) EP0093104A3 (de)
WO (1) WO1983003854A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131635C1 (de) * 1991-09-23 1993-03-04 Grosse Webereimaschinen Gmbh, 7910 Neu-Ulm, De

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2227490A1 (de) * 1971-06-09 1972-12-28 Lauritsen, William Eger Nyboe, Lerum (Schweden) Vorrichtung zur Erreichung der Steuerung der Bewegungen des Fadenführorgans bei einer Textilmaschine
SE396098B (sv) * 1973-03-05 1977-09-05 Lauritzen William Eger Nyboe Anordning for mekanisk manovrering av trad- eller garnstyrningsorgan

Also Published As

Publication number Publication date
WO1983003854A1 (en) 1983-11-10
EP0093104A3 (de) 1985-07-31

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