DE2514753B1

DE2514753B1 - Jacquard machine improvements - ensures connection between lifting wires and lifting blades

Info

Publication number: DE2514753B1
Application number: DE19752514753
Authority: DE
Inventors: Robert Dipl-Ing Bucher
Original assignee: Sulzer AG
Current assignee: Sulzer AG
Priority date: 1975-03-07
Filing date: 1975-04-04
Publication date: 1976-07-15
Also published as: DE2514753C2; CH589160A5

Abstract

Jacquard machine has lifting wires with stop hooks working in conjunction with stationary stop blades. The stop hooks move to and fro. Guide edges in the range of the low position, work together with shoulder whereby the lifting wire is deflected and in its low position is coupled to its stationary stop blade. An esp. secure coupling is achieved between lifting blades and lifting wires such that the lifting wire carrier hooks stay with certainty in the vicinity of the carrier hooks so that any faults in the coupling of the lifting wire hooks and the lifting blade hooks or in the reaction of the press-off needles can be automatically compensated. Even when a lifting wire hook rests with its point on the point of its lifting blade carrier hook and springs down from this unstable position, the lifting wire can only drop so far until it connects wth its stop hook in the stop blade. A further drop is not possible. From the low position the lifting wire can always be guided upwards by the upward movement of the lifting blade. The operation proceeds automatically.

Description

Schließlich gelangt Haken 16 in die in F i g. 1 gestrichelt eingezeichnete Stellung 16a, in der ein Finally, hook 16 gets into the position shown in FIG. 1 drawn in dashed lines Position 16a, in which a

rückwärtiger Ansatz 21 in die Position 21a kommt, in der er auf eine schräge Führungskante 22 des unteren Arretiermessers 18a trifft. Durch die Führung wird Haken 16 bei weiterer Abwärtsbewegung der Teile 1, 8 schließlich in die in F i g. 2 dargestellte Stellung 16b geführt, in der er mit dem unteren Arretiermesser 18 gekuppelt ist.rear approach 21 comes into position 21a, in which he is on a inclined leading edge 22 of the lower locking knife 18a meets. Through the leadership When the parts 1, 8 continue to move downwards, the hook 16 finally moves into the in F i g. 2 position 16b shown, in which he with the lower locking knife 18 is coupled.

In der Regel wird die Abdrücknadel 12 aus der gezeichneten Abdrückstellung kurz vor dem Einkuppeln der Haken 16, 18 wieder nach links geführt, so daß auch der Arretierhaken 16 und der Ansatz 21 nach links schnappen. Selbst wenn aber diese Vorgänge aus irgendeinem Grund nicht exakt so wie geschildert ablaufen sollten, so wird auf alle Fälle der Haken 16 in den Haken 18 eingehängt und zwar aufgrund der Führungskante 22. Die Platine 8 kann nicht etwa in eine so tiefe Stellung absinken, daß der Haken 16 in die vergleichsweise in F i g. 3 eingezeichnete Stellung 16c einer Ausführungsform der Jacquardmaschine ohne Führungskante 22 gelangen kann, in der er auf dem weit unten angeordneten Platinenboden 19 aufsitzen würde und in der die Haken 14, 15 nicht mehr mit den Haken 7, 6 kuppelbar wären. As a rule, the push-off needle 12 is taken from the drawn-off push-off position shortly before the coupling of the hooks 16, 18 again to the left, so that too the locking hook 16 and the projection 21 snap to the left. But even if this Operations should not proceed exactly as described for any reason, so the hook 16 is hung in the hook 18 in any case due to the leading edge 22. The board 8 cannot sink into such a low position that the hook 16 in the comparatively in F i g. 3 position 16c an embodiment of the jacquard machine can get without a leading edge 22, in which he would sit on the bottom 19 arranged far below and in which the hooks 14, 15 could no longer be coupled to the hooks 7, 6.

Bei der Aufwärtsbewegung des Hubmessers 1 kann es gelegentlich auch vorkommen, daß die Haken 7, 14 aufeinander sitzen (F i g. 4) und nicht fest ineinander greifen. Aus dieser labilen Position kann der Haken 14 leicht in F i g. 4 nach rechts schnappen, so daß auch in einem solchen Fall beim Absinken der Platine 8 die Haken 16, 18 zum Eingriff miteinander kommen würden. Occasionally, it can also occur during the upward movement of the lifting knife 1 it can happen that the hooks 7, 14 sit on top of one another (FIG. 4) and not tightly into one another to grab. From this unstable position, the hook 14 can easily be seen in FIG. 4 to the right snap, so that even in such a case when the sinker 8 drops, the hooks 16, 18 would come into engagement with one another.

Auch kann nicht etwa der Fall eintreten, daß die Platine 8 mit dem rückwärtigen Ansatz 21 beispielsweise auf der Flächc 30 (Fig.3) der bekannten Bauart aufsitzen kann und dadurch wiederum eine labile Position der Teile eintreten könnte, in der der weitere Betrieb gefährdet wäre. Also can not happen that the board 8 with the rear approach 21, for example, on the Flächc 30 (Figure 3) of the known type can sit down and this in turn could lead to a labile position of the parts, in which the continued operation would be endangered.

Bei einer abgewandelten Bauart (Fig.5) sind die Führungskanten 22a gegenüber den unteren, ortsfesten Arretiermessern 18 separate Bauteile. Z. B. können alle Führungskanten 22a miteinander einen besonderen Rost bilden. In a modified design (FIG. 5), the guide edges 22a compared to the lower, stationary locking knives 18 separate components. E.g. can all guide edges 22a together form a special grate.

Claims

Claims: 1. Jacquard machine with locking hooks going back and forth for coupling into stationary locking knives having plates, g e k e n n z e eh eh.

n e t by at least one stationary guide edge (22) in the area the fixed locking knife (18) which fixes the deep shed position, which guide edge (22) with a plate (8) on the adjacent board running into the lower shed located approach (21) cooperates, whereby the board is deflected and at Depressed position coupled to the stationary locking knife (18) belonging to it will.

2. Machine according to claim 1, d a you right gek e n n z ei eh n e t, that the stationary leading edge (22) on that of the board to be guided (8) adjacent, The fixed locking knife (18) which fixes the deep shed is attached.

3. Machine according to claim 1 or 2, characterized in that the Approach (21) is attached to the locking knife hook (16) of the board (8).

The invention relates to a Jacauard machine with back and forth going forth, having locking hooks for coupling in stationary locking knives Circuit boards. The invention is of particular importance in double-stroke Offenbach jacquard machines with single plates (single-leg plates).

In a known machine of this type (CH-PS 5 52 691) are the Boards passed in their lower area through a stationary board base.

If the coupling between sinkers and lifting knives for any Reason (e.g. due to vibrations or deformation of the boards) not according to the program runs, the board can in an undesirable manner up to the bottom of the board the action of a spring pulling it downwards. The one with the lifting knives Cooperating sinker driver hooks can then be removed from the area in which they can be coupled with the lifting knife driver hooks, so that the Blanks can no longer be taken by the lifting knives. It then becomes a relatively expensive repairs required.

The invention is based on the object, a particular one in this Respect to create improved machine. The invention consists in that at least a stationary guide edge in the area of the stationary edge that fixes the lower shed Locking knife is provided, which leading edge with one on the adjacent, in the lower shed running board works together, whereby the board is deflected and, when it is lowered, into the part that belongs to it, stationary locking knife is engaged.

In the machine according to the invention, a particularly safe Achieve coupling between lifting knives and sinkers in such a way that the sinker driver hooks remain with certainty in the area of the lifting knife driver hook, so that any Error in the coupling process on the sinker carrier hook and the lifting knife carrier hook or can be immediately compensated automatically during the removal process of the removal needles. Even if z. B. a sinker driver hook with its tip on the tip of a associated Lifting knife driver hook (Fig. 4) and jump down from this unstable state should, the board can only sink so far (Fig. 2) that it with its locking hook is engaged in the locking knife hook intended for the deep compartment.

A further decrease is impossible.

From the lower shed position, the board can be moved upwards at any time moved lifting knife are guided upwards again, so that the operation is immediately automatic can go further. The mode of operation of the jacquard machine can thus be special design trouble-free.

In the drawing, the subject matter of the invention is based on exemplary embodiments shown.

F i g. 1 and 2 show the circuit board arrangement of an inventive Jacquard machine in two different positions.

F i g. 3 comparatively shows a position in an arrangement without realizing the invention and FIG. 4 a further position in an inventive Arrangement, F i g. 5 a modified design.

The two lifting knives 1, 2 each have an upper bar 4, from which they are driven and set in upward and downward movement. At the bottom At the end of each lifting knife has driving hooks 6, 7 for the hooks 14, 15 of the sinkers, only one of which is shown and numbered 8.

The sinkers can be removed by pressing needles 12 according to arrow 13 in FIG Figure to be pushed to the right.

F i g. 1 shows the printing position of the boards.

Below the push-off needles 12 are stationary, the high-shed positions the locking knife 17 which fixes the sinkers and furthermore also stationary, the lower shed position fixing locking knife 18 arranged. For the interaction of boards and The plates 8 are provided with locking hooks 16 for locking knives.

A plate base is located substantially below the locking knife 18 19th

The mode of action is as follows: Let it be an initial position assumed, in the lifting knife 1 in the lower reversal position, lifting knife 2 in the upper Reversal position and the board 8 with its locking hook 16 in the fixed locking knife 17 is attached (upper shelf position of the board). The extraction needle 12 is located in its left, ineffective position, in the plate 8 not pressed to the right is.

Lift knife 1 is now upwards and lift knife 2 is downwards at the same time emotional. Hook 7 engages hook 14 and takes board 8 upwards. Afterward the press-off needle 12 is moved to the right according to arrow 13, so that the plate 8 mainly in its central push-off area reinforced by a widening 9 10 is pulled. As soon as the locking hook 16 is high enough, it is out of the upper locking knife 17 unhooked and snaps to the right. Reach the parts the position shown (upper reversal position of lifting knife 1 and lower Reversal of lifting knife 2).

Thereupon lifting knife 1 is downwards according to arrow 31 and lifting knife 2 according to Arrow 32 moves upwards. The board 8 goes under the action of a not shown Spring downwards together with lifting knife 1 and remains pressed so that hook 16 passes the locking knife 17 on the right outside.