DE1410727A1 - Jacquard control for looms - Google Patents

Description

L J

Oskar Schleicher oHG, machine factory, Rheydt, Geneickener Str.

Jacquard control for looms

The invention "relates to a jacquard control for" Vebstühle, whose Warp threads for the purpose of shedding by the jacquard apparatus alternately in high and low compartment; are to be brought. This is done with the help of lifting and lowering control members, the attack the warp threads and connect with the punched card tape of the jacquard apparatus via drop-front and main needles and sinkers; stand · V / ird a dropper pin in a hole of below her while the card tape passes through, the board assigned to this dropping needle lifts it through the associated Needles on a reciprocating knife bar is pressed, the control member connected to it, whereby the relevant Warp thread has reached the shed position. As long as the reverse Drop needle is not read into the punched card tape, it releases the control element assigned to it, which is then under the influence an external force is pulled down and brings the warp thread connected to it in the shed position.

In the known jacquard looms, the actual jacquard apparatus is a few meters away from the warp threads reeved into the loom on a correspondingly high one Upper scaffolding arranged and with the warp threads through the

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so-called armor connected. The durph the individual Harness cords and their connecting strands to the warp threads formed control members represent pure tension elements that for pulling up the warp thread in Hochfaclistellunp; of the associated Sinkers of the jacquard apparatus are adjusted accordingly when reading in the falling needles assigned to them *

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To each released by the jacquard, after to be brought into the lower shed position on the connecting strands Weights attached between harness cords and warp threads

When operating the well-known jacquard looms, the following inconveniences arise: Every time the warp thread is pulled up in the high shed position, the loading weights hanging on the healds must also be lifted by the sinker mechanism of the jacquard apparatus released warp thread can also get into the deep shed position quickly enough and be held in this position during an ochußeintrages. i'rotzdem reiojien, the Litzengewichte experi ^ convention under micht of _f when the ißpurenzahl of the loom is increased beyond a certain limit · At higher numbers Tour device namely the harness ^ n whipping movement, whereby the warp yarns are offset in accordance with ^ oscillations and errors that so-called splashes arise in the woven fabric. Heavy strand weights usually lead to permanent stretching of the harness cords and flashes, which accordingly have to be readjusted more often «

Apart from the adverse effects of the strand weights causes the relatively large height of the harness of the known jacquard looms, which is necessary for structural reasons other sensitive disadvantages · Zym Replacing the punched card tape to readjust the harness cords and braids as well as for the care of the entire control mechanism and in particular the actual jacquard

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rates, you usually have to use a "special auxiliary device, e.g. a Attach the ladder to the chair and after each remove any work to be carried out. Even then, working on the jacquard apparatus and harness is an easy task still quite cumbersome · The well-known jacquard looms can only be found in halls because of their large construction height Set up from a correspondingly large light height.

For many decades, the relevant technology has endeavored to remedy the aforementioned deficiency through ingenious improvements to remedy or at least to mitigate. It turned out, there!? - a complete elimination of this deficiency only through a fundamental departure from the aforementioned design and mode of operation of the Jacguard control is possible. So far came but the technology has not yet made this control system ready for operation. Rather, it persists as before the unsolved problem, the weight load of the To remove the armor and the needlework of the jacquard apparatus, to reduce the overall height of the loom while eliminating meter-long harness cords and finally its Tommren number to an extent that is unfair to other web sites to be able to increase.

The finding solves the previously mentioned underlying Task in the following way instead of harness cords, connecting strands with attached weight, etc. serves as a control element for each individual warp thread, a vertical one with two recesses one above the other Plate that is raised or lowered accordingly from the jacquard machine to form the warp thread for shedding will. These platinum movements take place according to the invention with the help of control spools, each paired with a circuit board assigned and in two superimposed and

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Controlled valve housings that can be raised and lowered in opposite directions are horizontally moveable. Each pair of control spools is through a drop pin of the jacquard apparatus, which is in mechanical and / or electrical connection with the pair of slides, to be actuated in such a way that either the control slide located in the upper housing or the lower housing engages in the corresponding recess of the circuit board assigned to it

When taking place during each work cycle of the loom opposite movement of the two valve housings to each other the circuit boards are temporarily connected to the upper housing via the corresponding control slide lifted and bring the warp threads sheared through the eyes of these sinkers in shed position. That at the same time the lower slide housing that goes downwards leads with it over the respectively locked lower control slide connected sinkers down and thereby brings the warp threads sheared into these sinkers in the lower shed position. After each shot, the controlled ones go Valve body back to its original position, in which they are at the smallest vertical distance from each other, and the control slide v / earth by φι β opposite direction counter-pressure pieces, which act like the preadles of the jacquard apparatus, are disengaged from the sinker recesses. Then a working cycle of the invention is repeated Jacquard control according to the hole pattern, which is intermittently in the under the drop needles of the jacquard apparatus card tape running through it is knocked in.

In the jacquard control according to the invention, the needlework of the actual jacquard machine

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in relation to the previously required cap weights Vanishingly small mass of the control slide loaded, as soon as each of the control slide operated by the tfea-quardapparat ' are locked in the associated circuit boards, takes each slide housing the circuit boards connected to it inevitably move upwards or downwards. Without any significant burden on the The actual jacquard apparatus thus takes place in the case of the invention. according to the drive, the lifting of a warp thread group in the high-shed position and that at the same time. Pressing down a second group of warp threads in! L'iefXimosition exclusively with help rigid control elements in the form of plates, control slide and valve body.

As no xxz further explanation is required, one can understand the whole Arrange the control mechanism of the warp thread directly above the reeving point of this thread in the loom Starting position goes down and back to this position, in its lower end position still at a sufficient distance from the brought into the upper shed position by the upper slide valve housing Warp threads are »The vertical sinkers can as a result be made relatively short and are, since they only aie low tension during their lifting or lowering movement have to overcome the warp thread to be regarded as rigid. In the Jacquardsteueruiig -according to the invention is thus one flawless .multiple education through the going or «, respectively lowered sinkers caused after Kettx'u ^ eii entrained above or below guaranteed.

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Further details of the invention are given in the drawing The illustrated embodiment is explained in more detail * It is shown in a simplified format

i'ig. 1 a Jacciuardsteuerun ^ for those in a, / chair .. ..... hasty üciiart en liettfkden in a ^ r partly in the öciinitt held side view and ..

Fig. 2 the Jac.juardateuerun, ^ in a different "working position" one - sciilie ^ licli of a l'raggerj feriier in an enlarged scale - ^;

i'ig. 3 a section dex * J'ibU ^ 1 in different positions of individual parts,

i'igο 4 a vertical section along line IV-IT of the figure. 3 and

5 shows a horizontal cross section along line V-V of

The jacquard depicted in the drawing · control for looms aient to u.le in a conventional manner over n baume 1 eineB loom tensioned warps k ^ i / ebfaciiüildung groups abv / echselnd in iiochfach- and bring I'ieffachstellun ^. The drive contains vertical sinkers J, which have eyes 4 for looking through the warp thread 2 and in two in Kichtun:.; of the warp threads 2 lying one behind the other and extending over the width of the loom are arranged. Each sinker 3 is guided beneath its eye 4 with its lower ends 3a in a horizontal, fixed slot plate 5 "which sits on a frame 6 standing next to the jacquard loom in its hallway"

Are there two box-type slide housings on the frame 6 ? mounted so that they can be rubbed and lowered, which are marked by a (not. e) zv / corner

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moderately derived from the main drive of the loom and accordingly controlled drive before each shed formation of the warp threads 2 in the starting position shown in FIGS. 1, 3 and 4 The housings are held in place for the purpose of shedding 7 from this position, in which they are at the smallest vertical distance from each other, by the aforementioned controlled drive so moved in opposite directions that the upper Housing 7a goes up and the lower housing? B goes down and both housings after the weft entry into the shed return to their original position. Each housing takes over those circuit boards $ 3 that come with it in the following explained way are temporarily connected, the corresponding group of warp threads 2 in the upper shed or lower shed position with and then brings the warp threads back into the central position (FIG. 1). The housings 7 extend just like the two aforementioned rows of sinkers 3 in the transverse direction (weft direction) of the jacquard loom over it Broad"

The upper end 3b of each plate 3, which is through the lower Ge » housing 7b goes through and extends into the upper housing 7a, runs in the correspondingly slotted base plate 8 of the housing 7b. The leadership of the boards in the two Slotted plates 5 and 8 ensures that these boards in each position of the housing 7 assume a vertical position and cannot tilt. Each sinker end 3b has two recesses 9 and 10 on, of which the recess 9 within the housing 7a and the recess 10 within the Housing 7b is located as long as the two housings are in the starting position. In addition, each end of the board carries 3b another nose 11, which is on the bottom plate 8 of the housing 7b is able to hang up and prevents the blanks 3 from slipping downwards out of this housing?

Each board 3 is a pair of board-like control slides 13 assigned, of which a slide 13a in the upper dimer

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Housing 7a and the other slide 13b is guided in the lower housing in a horizontal direction in corresponding slots of two opposing side walls of the associated housing. Each control slide protrudes outward from these side walls and carries an Ea.se 14 located within the associated housing 7, by means of which it can be locked into one of the two recesses 9 and 10 of the board * 3 assigned to it.The individual pairs of control slides 13 are controlled in the manner described below so that only either the iia upper housing 7a movable ^ slide 13a or the slide 13b mounted in the lower housing Tb is to be brought into temporary rigid connection with a circuit board 3, the two housings 7 during of the locking process are in their aforementioned starting position

On the one of the two ends of each control slide 13 protruding from the associated housing 7, which brings the slide to snap into the corresponding recess 9 or 10 of the board 3 assigned to it when an external pressure force is applied and which has an upset or flanged head surface 15, is able to expediently a horizontally movable push pin 16 to act · The individual push pins 16 are guided in a stationary »vertical support plate 17 attached to the frame 6 and are under the action of spiral springs 18 (Figure 1), which seek to pull the push pins off the associated slide heads 15 · In addition, the two pushing needles 16, each assigned to a control slide pair 13, lead behind the support plate 17 into the eyes 19 of a pulling needle 20 that can be raised and lowered a connection 22, which as a rope, chain, Hebelg may be formed estänge or as Manotte * To the compounds of the Zugnadeln 20, the front needle plant includes a Jacquardapparates 23 of conventional design _e -

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Each of the Hadelu24 belonging to the Vornadelwerk leads itself a drop pin 25 »which, depending on the hole pattern of the through the JaeQuardapparates running card tape 26 during a Work cycle of the loom through this card band either held in the raised position or in a pattern hole of the tape will enter. The JaequardapparaiP also contains a pair of reciprocating hessians 27 'which those of the respective read in drop needles 25 pre-needles adjusted 24 · take with you and via their connections 22 also the associated Pull the pulling needles up against the action of the springs 21

As can be seen in particular from FIG. 1, for each of the two rows formed by the sinkers 3, one behind the other when viewing the warp threads 2, a complete set of control slide pairs 13 »push needle pairs 16, pull needles 20, connections 22, front needles 24, drop needles 25 and measuring em . 27 provided · ÜTur the card tape 26 of the Jaquardapparates 23 and the two slide valve housings 7a and ψα are common to both rows of boards »

When a drop pin 25 is read into the card tape 26 Via the associated pre-needle 24 and connection 22, a pulling needle 20 counteracts the action of the spring 21 acting on it pulled upwards, the pulling needle in question pivots the pair of pushing needles which are slidably mounted in their eyes 19 around their guide points in the stationary plate 17 accordingly to the top · On those facing away from the control spools 13 The ends of the push pins 16 are able to act by controlled pressure pieces in the form of rfinkleisen 28 which are attached to the frame 6 are mounted so that they can be moved horizontally »For all pairs of push pins that lead to one or the other of the two belonging to the above-mentioned rows of boards is one on top of the other lying angle strips 28 existing pair of pressure pieces provided The pressure pieces 28 of each of these two pairs are in

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such perpendicular distances from each other that either only all upper or only all lower threads 16 of the associated Pairs of push needles come into the range of action of a pressure piece 28. This is the case for all upper push pins 16! when the pulling needles 20 assigned to them are in the raised position Inversely, the lower girls are 16 of the same pairs of bumper pins, if the Jaoquardapparat these pairs associated pulling needles 20 releases and the! springs 21 the relevant Pull needles 20 downwards, adjusted by the pressure pieces 28 assigned to them and thereby bring them with them control slide 13 that interacts with them to snap into the associated plate recesses

The entire control system consisting of the Jaequard apparatus 23 including drop needles 25, needle needles 24 and knives 27, pulling needles 20 and their connections 22 to the pre-needles 24, controlled pressure pieces 28 together with pairs of pushing needles 16, pairs of control slides 13j slider housings 7 and plates 3 that can be raised and lowered For the warp thread 2 sheared into the sinker eyes 4 is arranged on the frame 6 standing on the loom floor. As a result of this separate setup, it can be easily achieved that the jacquard control remains free of all vibrations occurring in the actual loom, in particular through attacks on the loom, and is accordingly free of disruption can work »It also ensures that the spool 13 ■ engages properly in the associated circuit board recesses 9 and 10 before the V / ebfachbildung when the housing 7 and ^{11 are in} their initial position, i.e. in their smallest vertical position . from one- -; are different. In this position of the two 3housings: 7a and 7b, the upper plate ends 3b push forward _{, correspondingly far above the rabbits 11 attached to them;} . stand, straight against the cover plate 12 of the upper ocLleberge— ■ house 7a (j? ig * 1, 3 and 4) "i) The position of the board ends 3b" is thus also the position of the in the assigned to them

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lateral housing walls guided control slide 13 exactly fixed.

If, under appropriate control from the jacquard apparatus 23, the various control slides 13 are locked into an upper or lower recess 9 or 10 of the associated llatinen 3 and have been taken along with the sinkers by the diverging housings 7a and 7 "b, they form into the sinker eyes 4 reeved warp thread a shed (Figure 2). The clear height of the shed created in each case can be adjusted very precisely and finely in the simplest way by adjusting the stroke length of the two housings 7a and 7b accordingly within the limits imposed by the construction. After the shed formation has taken place, as already mentioned, the two housings 7a and 7 "b again move in opposite directions towards one another until they have returned to the starting position and the warp threads 2 have reached the central position (FIG. 1). The main drive of the is now actuated v / ebstuhls via a (not shown) intermediate drive counter-pressure pieces 29, which on de r opposite side of the housing 7 ^w 5- ^e AEI ^e plungers 28 in the horizontal direction on the frame 6 bearing · For each slide housing 7 satisfies a controlled counter pressure piece 29 · If the two counter-pressure elements 29 from its shown in Figure 1 Buhelage in the direction proceed to the control slide 13, move all the control slides previously locked into the plates 3 to the left so far that the slide lugs 14 disengage again from a.en associated plate recesses 9 or 10 can be limited by the slide lugs 14 or by other stops provided on the control slide in the iffeise that all slide with their head ends 15 just rest on the associated push pins 16, the jäftixgfogywftχanx. in turn, after being released by the pressure pieces 28, which have since receded, under the action of

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Springs 18 have taken their rest position. So that is a Working cycle of the jacquard loom according to the invention completed. As no further explanation is required, it depends solely on the hole pattern hammered into the card tape 26 from which of the falling needles 25 are read into the card tape and which falling needles 25 of the jacquard apparatus 25 releases for the relevant work cycle · The control slide that interacts with the drop pins that have been read in 15 bring the plates 5 assigned to them, for example, in the upper end position when the housings 7a and 7b diverge, at the same time the cooperating with the released drop needles control slide and with boards connected to them during the relevant work cycle to reach the lower end position

The jacquard control according to the invention can of course also be used ^. "! attach to the superstructure of the chair, if the arrangement of a special support frame appears inexpedient, ^ exi can also get along with a single row of vertical tines 3, especially with a smaller number of warp threads Conversely, it is also possible to arrange the ilitinen 3 in more than two rows one behind the other in the direction of the warp threads.

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Claims (1)

-13- U10727 P _1- Si tent claims Tacquard control for looms whose warp threads with the help of attacking them, with the droppins of the Jaoquardapparates in connection, raisable and lowerable control members for the purpose formation of the shed by the control members raised in each case by the jacquard in Hoohfachstellung and by the this apparatus is in each case released control members lowered under the action of an external force in Sieffachstellung are bring, characterized in that as a control member of each individual warp thread (2) is a vertical, with two on top of each other lying recesses (9 u »10) equipped plate (3) which has an eye (4) for reeving the associated warp thread (2), and oboe a pair of horizontally movable ones associated with the board Control slides (13) are used, which are located in two slider housings, one above the other, which can be raised and lowered in opposite directions (7) guided by a dropping needle (25) each are to be actuated in such a way that either the one in the upper housing (7a) or the control slide located in the lower housing (7b) into the corresponding recess (9 or 10) of the board (3) engages and this occurs during the movement of the two slider housings (7) during each work cycle of the loom. to raise the warp threads (2) accordingly for shedding bfcw · is able to lower. 2. Loom according to claim 1, characterized in that for all vertical sinkers (3) »the appropriately several in the direction of the Form warp threads (2) one behind the other, and for all Pairs of control slide bars (13) two common slide valve housings (7a and 7b) are provided, the ebonso v / is the or each latin row in the direction of the weft of the loom but find out its width., j ο »<e'D £ .tuhl η .cn ^ ais ^ rucii 1 una. 2, thereby, ^ '- lr.z 2 lehnet, üaii dii two iibe ^ uiniuauer lu. ^ Iiuon otsuor ^ Cüx..bor v'lj) the island 10/0273 BAD ORlGiNAl. U10727 Pairs by controlled DruokÄtüoke (28) over with the case or Needles (25 and 24) dee Jaoquardapparatea (25) interacting and appropriately cushioned push pins (16) gate of each web * Shed formation alternately in the associated subdivision separations (9 or 10) and after removing the cover Duroh controlled counter-pressure stttoke (29) again based on these recesses are freaking out. 4. Loom according to claims 1 to 3, characterized in that the individual control slides (13) from the associated slide housing (7a or 7b) both according to the pushing needles (16) arranged on one side of the housing and according to the counter-pressure valves located on the opposite side of the housing (29) toward protrude and be guided in the horizontal slots that Gehäuaeseiten and are expediently provided with stops which limit caused by the Gegendruckstüoke (29) Rüokbewegung the spool to Auer keys from the associated PIatinenaussparun _e en (9 od.10). 5. Loom according to one of claims 3 and 4, characterized in that each of a control slide pair (13) associated with two superimposed pushing needles (16) on the one hand in slots of a fixed support plate (17) and on the other hand in eyes (19) of a spring-loaded and with a front needle (24) of the Jacquard apparatus (23) in connection with the pulling needle (20), which when reading the with the. relevant front needle (24) cooperating drop needle (25) in the Loohkarte band (26) of the Jaoquardapparates is raised against the effect of their load, out and the pressure pieces acting on the rear needle ends reciprocating in the horizontal direction. Are arranged above one another at such distances (28), that in each case namely raised Zugna- ^ del (20) only a piercing needle (16) comes with the associated pressure piece (28) into contact with the one and with lowered Zugnadel the other shock ^v needle, and when proceeding with the relevant pressure piece (28) the control slide assigned to it 909830/0 2 73 U10727 Via (13) to snap into the associated circuit board recess (9 or 10) adjusted. 6. Loom according to one of claims 1 Ms 5 »characterized that each vertical l-latine (5) serving as a control element of a warp thread (2) is located in a bottom slot of the lifting and lowerable lower valve housing (7b) on the one hand and in a stationary slotted plate (5), on the other hand, which, in terms of length, underneath the warp thread reeved into the chair (2) is arranged. 7. Loom according to one of claims 1 to 6, characterized in that that each vertical board (3) one arranged in this way Hare (11) carries that this when engaging a control slide (13b) of the control slide pair assigned to the board (13) rests in the associated plate recess (10) on the floor (8) of the lower valve housing (7b), and so on protrudes far beyond this ITasc (11) according to above 1 that it with The control slide in question just engages against a cover plate (12) of the upper slide housing (7a), which is in the smallest vertical absu <?.: id of the lower valve body (7b) is located. b. Loom according to one of Claims 1 to 7 »characterized in that that the entire jacquard apparatus (23) including case (25) and front needles (24), pulling needles (20) and their connections (22) to the pre-needles (24), controlled pressure pieces (28) together with pushing needles (16), controlled counter-pressure pieces (29), slide valves (7) together with the movably mounted control slide (13) and lifting and lowering plates (3) existing control mechanism (4 to 29) for the sheared into the sinker eyes (4 ·) Warp thread (2) on a standing in the hallway of the loom special frame (6) is arranged. SAD 909830/02 73