SU1071229A3 - Double-lift open-shed jacquard for loom - Google Patents

Abstract

1. Double stroke open shed jacquard machine with lifters which have three projections, are guided with play at at least one stationary screen, arranged between the lifting griffs, which do not intersect one another, and are supported in their lower shed position on the lifter base, wherein one lifting griff box, preferably the lower one, is guided in the contact region of the lifters such that it moves laterally, characterized in that the lifters (1) are constructed with one arm, are secured against rotation about their axis and their projections (2, 3), associated with the lifting griffs (6, 7) are directed towards opposite sides, the lifters (1) being supported in the impressing direction of the needles, on the screen (9) disposed between the lifting griffs (6, 7) whilst avoiding a further screen arranged below the lifting griffs (6, 7) and an additional screen (12) being provided above the open shed position of the upper lifting griff (6).

Description

The invention relates to textile industry and relates to two open-jaw lifting jacquard machine for a loom. A known double-jacquard open-throat machine for a weaving machine, containing vertical hooks, each of which has a means of fixing from turning three nozzles to interact with other lifting knives placed one year, one of which is installed with the possibility of lateral movement and the fixed knife contacts with squeezing needles and is made with an elastic knee, a supporting hook frame for contacting the hooks in the lower throat position and two fixed grids for guiding the hooks, one of They are placed between the lifting knives. The disadvantage of this machine is that the hook hanging on one lifting knife rests on the grids, while the hook between them is deformed. The deformation of the hooks leads to what is When turning the grille, the knee of the hook is pulled out of the impact zone of the upward-moving knife. A lateral deviation of movement. A single set of lifting knives is also a significant friction of the hooks on the grille, which can lead to the bottom of the lifting knife hook gets stuck and loses contact with the lifting knife. This eventually leads to a marriage of tissue. The purpose of the invention is to increase the reliability and performance. The goal is achieved by the fact that. in an open-jaw double-lifting jacquard machine for a loom containing vertical hooks, each of which has locking means for turning, three nozzles for interacting with one placed under the other lifting knives, one of which is mounted with the possibility of lateral movement, and a fixed with a knife, in contact with squeezing needles and made with an elastic knee, a supporting hook frame for contacting with the hooks in the lower throat position and two fixed grids for guiding the hooks, one of which placed between the lifting knives, another fixed grid placed above the lifting knives, the elastic knee of each hook is bent over and its nozzles mounted with the ability to interact with the lifting knives are directed in opposite directions, while the hooks are installed with the possibility of contact during spinning with the grid, placing the between lifting knives. Hooks in the areas between the nozzles have stiffening ribs hooks in the areas in front of elastic knees have ledges facing the needles pressed and mounted in such a way that in the extreme positions of the hooks pushing needles pass between the ledges, Mishina is also provided with guide means to ensure contact HOOKS with a fixed grid placed above the lifting knives. FIG. Figure 1 shows a double-lift jacquard machine with different hook positions, side view; in fig. 2 - 9 - hook in different positions, side view; in fig. 10 constructive image of the hook; in fig. 11 - upper lattice with guiding elements; in fig. 12 different hook shape. According to the invention, the machine named it has two groups of lifting knives 1 and 2 (which are in opposite directions vertically) spaced one above the other at such a distance that they do not intersect. By means of these lifting knives, the hooks 3 are moved in the vertical direction, and the hooks can be moved transversely to their longitudinal axis by means of squeezing needles 4, so that the tips 5 and 6 directed in opposite directions can be brought into engagement with the knife edges lifting knives 1 and 2 or removed from the interaction. Each hook 3 has a locking nose 7, which, in the position of the upper shedding of the hook 3, can interact with the stationary locking knife. The squeezing needles 4 are moved into the block against the action of springs (not shown) by means of horizontal knives 9 that act on the squeezing needles 4, which are driven elements 10 that squeeze the hooks 3 from the lifting knives 1 and 2 on the side. With the squeezing needles 4 are connected copying needles 11 interacting with Jacquard cards 12 driven by cylinder 13. In the event that the copying needle 11 falls into one hole 12, it removes the squeezing needle 4 from the zone of interaction with squeezing knives “1 and 9, resulting in a corresponding the hook 3 remains in its basic position, i.e. without spin. If the copying needle 11 falls into the card 12, then the squeezing knife 9 moves the corresponding needle with the squeezing needle 5 and instead of with it the matching hook.

FIG. 1 the upper lifting knife 1 is shown in its upper position, and the lower lifting knife - 2 in its lower position ,. The hooks 3a are located in the lower pharynx and are not pressed: sideways, as a result of which they are carried away. lifting knife 2 up. Hooks Zo: are in the upper throat and also squeezed out, otherwise they would have moved with a lifting knife 1 down if they had not lingered on an arresting head 8.

Hooks 3c are in the upper section and pressed laterally. Due to the fact that they are suspended from the nose 5 to the lifting knife 1, the arresting spout 7 is freed from the arresting yoke 8, and the red glasses 3 d are lifted by the lifting knife 1 to the lower shed formation position.

The hooks 3 dl are in the lower throat, and they are pressed, the spout b is released from the lifting knife 2 and the hooks 3jH remain in the lower throat position.

Between the lifting knives 1 and 2 there is a grille 13 ,. in which the hooks are directed to their main position and on which they are supported when pushing the hooks located in the lower pharynx are pressed onto the hook support frame 14. In the upper end position of the upper lifting knife 1, a second grille 15 is provided. The upper shed hooks of the ES short-term otzhigiots and at the same time follow with the lifting knife 1 to the position of the lower eev, the upward-moving lifting knife 2 meets with the free spout of the downward hook 3c J, 4To, causing this cru Choke 3c is gripped on a put and again carried to the upper pharynx, as a result of which a defect may occur in the fabric being manufactured. With a goal. prevent rejection, one of the lifting knives, preferably the lower (2), performs a lateral deflecting movement along the arrow 16 if the free nose b at this moment passes by the upward moving lifting knife 2.

When the hooks 3 are in the lower os setting (2 and 3), the corresponding needles 4 are unclipped, and the lower lifting knife 2 grips the hook 3 (FIG. 2) to the open opening position, the lifting knives 1 and 2. (FIG. 3) occupy in relation to FIG. 2 positions, and the upper knife 7 draws the hook 3 g to the open throat position. In both cases, the hook is centered due to the fact that ofH is adjacent to the wire of the grid 13 facing the nose .5 and, if necessary, to the arresting knife; 8 and is held in this position by force, tensioning the arcata. Veli same it:.; O (fig. 4) the hook is pressed

aside with a needle 4, it is subjected to a combined bending and tipping load. Counterclockwise with respect to the grille 13, due to which the middle nose 6 is released from the lifting knife 2-. If the upper part of the hook is equipped with a reinforcement with dimi elements and the lower part is made soft, then the hook 3 performs a tilting movement in the upper zone relative to the grill 13, and in the lower zone it bends.

The pressed hook 3 (fig. 4) remains in the position of the lower pharynx (fig. 5), corresponding to the position of the lifting knives 1 and 2 according to fig. 3. The tilting movement of the hook 3 (Fig. 5) should occupy such an angle that the upper nose 5 lying closest to the grille 13 is separated from the plane in which the lifting knife 1 moves.

In the exemplary embodiment of FIG. The hook 3 is in the open throat position and the spout 7 is mounted on the arresting knife 8, the hook is not pressed, and, remaining in the open throat position, it is precisely guided and centered between the grille 13 and the arresting knife 8.

In the event that the hook in the open throat position / 3 of FIG. 7 is pushed aside, a combined process of bending and tilting takes place relative to the right rod of the lattice 13 until the arresting spout 7 is released from the arresting knife 8. In order that the upper end of the hook cannot slide off the upper lifting knife 1, Lattice 15, blocking the tilting movement of the hook .3 in the upper part.

Such a bearing occurs only when the hook 1 hanging on the upper lifting knife is in the open pharynx position. In order that the hook 3 could fall without resistance and blockage in the half-life between the bars of the lattice 15, appropriate guide means 17 (Fig. 2-9) are provided, which consist of a slightly bent hook extension.

The same action is obtained if the hook 3 (Fig. 8 sits on the lower lifting knife 2 and is pressed.

Hook 3 (Fig. 9) can be made so that, while moving down, with its free wearable 5, it is not caught by the upward lifting knife 1. The lower knife 2, when the middle zone of its way passes through, fits the deflecting movement arrow 16 ). The hanging hook 3 is carried away from the knife hatch indicated by the hatching of the inclined HoL H °. This movement of the hook occurs without deformation, as it is separated from the 1C J upper lattice of the mv ° lattice from the lower lattice 1C J the hook 3 leads to slight bending, in particular, when it is attached to the arratiruk knife 8. If the hook 3 hangs on the upper knife 1, then deflecting the movement of the lower knife 2 does not deform. Hook (fi 10) maybe ° upper n parallel to the needle m 4 planes bar-shaped reinforcing element 18 | This reinforcement acts as a protection against hooking. The reinforcing element 18 carries the upper nose, 5. Stepping behind the Hob, 3, slightly engraved. Forms the guiding means in the hook insertion pJmeTKv fr- p. into the lattice 15, the lattice 15 (Fig. 1I can be provided with guiding means 17, which can protrude the lattice down under the nozzle 5 Ha.xoSSegos in the lower throat position with the hooks; 12), moreover, it is chosen in such a way that the needle (4) of the needle 4 in the position of the lower pharynx acts in the place lying on the top of the bend 19. The hook 3 in the position of the upper formation (Fig. 7) interacts with the needles 4 in the zone under the bend 19. In this position, the needles 4 first perform idling by the amount of the bend 19, and then fall onto the zaanut shelf 20 Despite the needles 4 arranged in several rows above each other, the hook 3 with its bend 19 should not fits to each needle position. The bend 19 is at the same time a means for preventing the hooking of the hook 3. The advantages of the invention are that the hooks of the deviating lifting knives detach from the grating in front of them and perform a pivoting movement without bending the hook. On top of the knives, the grill, according to the invention, does not have contact with the hooks and therefore does not cause: friction.

 /

h j, j, .tjnjrjr je.

3 t

. to l is. ,; fff; H // v4 A .. j. .- 7 y, fe K. tnCt L- 2 x / Hx a «as / T l x, ....:, (. 0ut.3, tput. O tx, ifc 5 15 S is .V Л1. f "D / -e,. 1t, .ftl fv.,

fput.io

11

Vtje, 1l

Claims (4)

1. TWO-LIFTING JACQUARD OPEN JAWN MACHINE FOR A WEAVING MACHINE, containing vertical hooks, each of which has a means of fixation against rotation, three spouts for interacting with one placed under the other lifting knives, one of which is installed with the possibility of lateral movement, and with fixed knife, in contact with squeezing needles and made with an elastic elbow, a supporting hook frame for contacting with hooks in the lower position of the throat and two non-essential lattices for guiding the hooks, one of which placed between lifting knives, characterized in that, in order to increase the reliability of work and the manufacturer On the other hand, another fixed lattice is placed above the lifting knives, the elastic knee of each hook is bent down and down, and its spouts, installed with the possibility of interaction with the lifting knives, are directed in opposite directions, while the hooks are installed with the possibility of contacting during extraction with the grill placed between the lifting knives. 2. Machine pop. 1, characterized in that. - hooks in the areas between the spouts have stiffeners. 3. Machine pop. 1, characterized in that the hooks on the sections in front of the elastic elbows have ledges facing the side of the needle and needles. mounted in such a way that in the extreme positions of the hooks the squeezing needles pass between the steps. 4. The machine according to π. 1, characterized in that it is provided with a guide means for ensuring the contact of the hooks with a fixed grill, placed above the lifting knives. SU "1071229 A