EP0831159A1 - Weaving rotor for a linear shed multiphase loom - Google Patents

Abstract

The surface of the rotor of a multiphase weaving machine has shed forming elements (2, 2a, 2b, 2c, 2d, 2e, 2f) arranged so that successive elements along the circumference are at least partially staggered in the direction of the rotor axis.

Description

The invention relates to a weaving rotor for a Row shed weaving machine according to the preamble of Claim 1.

Known row shed looms include a rotatable one Web rotor, which on the surface in the direction of rotation has aligned shelf holding elements. A The disadvantage of this arrangement is that a elaborate laying device is required to make warp threads insert correctly in the shelf holding elements, such that the warp threads inserted in the weaving rotor are open Train the shed to insert a weft thread.

It is an object of the present invention propose economically more advantageous weaving rotor.

This task is solved according to the characteristics of Claim 1. The sub-claims 2 to 5 relate to further, advantageous embodiments of the invention.

The task is solved in particular in that Circumferential direction of the weaving rotor in succession arranged compartment holding elements in relation to the weaving rotor axial direction at least partially offset are.

In an advantageous embodiment of the invention each arranged adjacent to each other in the circumferential direction Shelf holding elements in axial with respect to the weaving rotor Direction offset by the same distance.

A weaving rotor designed in this way has the advantage that no movable laying device is required. All that is needed is a fixed arrangement Guide device for the warp threads, for example in Form of fixed eyelets or reed-like Guides. The rotation of the weaving rotor causes them to dive Compartment holding elements in the through the guide device aligned warp threads, each with the relative position between one in the axial direction Warp thread and a compartment holding element determines whether the Warp thread in a high or a low position of the Compartment holding element comes to rest. Thus the Arrangement of the compartment holding elements on the weaving rotor Binding of the developing tissue without a Movable insertion device for the warp threads is required. The simplest type of binding is one so-called 1/1 binding available by all in Circumferential direction in each case adjacent compartment holding elements the same distance offset in the axial direction are, and by the circumferential each the next but one compartment holding element in the axial direction are arranged congruently.

Because the arrangement of the shelf holding elements on the surface of the weaving rotor determines the weave of the fabric is one Many different types of bindings available that the compartment holding elements of the binding are arranged accordingly on the weaving rotor. So can a weaving rotor through a corresponding arrangement of the Compartment holding elements, for example for a 1/1 binding or a 1/2 bond or a 1/3 bond may be provided.

It may prove beneficial to do the previous described web rotor with at least in the axial direction partially staggered compartment holding elements in Combination with a mobile, actively controlled To operate the laying device for the warp threads. This Combination has the advantage that the weave essentially through the arrangement of the shelf holding elements is determined on the web rotor so that the Laying device essentially has the task of Warp threads securely in the shedding high and Low points of the shelf holding elements, what especially with a high warp thread density of is of particular importance. An advantage of this arrangement can be seen in the fact that not all warp threads are over active controllable laying devices must be guided, which is why a reduced number of actively controllable Laying equipment is required, what is appropriate Saving costs.

Fig. 1a

in einer Seitenansicht einen Schnitt durch einen Webrotor einer Reihenfachwebmaschine;

Fig. 1b

eine Aufsicht auf den Webrotor gemäss Fig. 1a entlang der Linie A-A;

Fig. 1c

eine Aufsicht auf einen Webrotor mit zusätzlichen, beweglichen Führungselementen.

The invention is described below using an exemplary embodiment. Show it:

Fig. 1a

in a side view a section through a weaving rotor of a series shed loom;

Fig. 1b

a view of the weaving rotor according to FIG. 1a along the line AA;

Fig. 1c

a top view of a weaving rotor with additional, movable guide elements.

The sectional view through a weaving rotor 1 Row shed weaving machine shows the jacket 1a of the weaving rotor 1 with compartment holding elements 2 arranged on the surface, 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, which serve one Warp threads 3,3a, 3b in a high position H or a low position Keep T. As a result, between the warp threads 3a, 3b a shed W is formed, in which a weft 8 with the help of one acting on the weft 8 Fluid 10 can be entered. In the illustrated Some of the compartment holding elements 2 have exemplary embodiments a fluid supply channel 9 through which the fluid 10 fed and in the by the compartment holding element 2 trained weft insertion channel is blown. The Compartment holding elements 2 are, as shown in Fig. 1b, in arranged in alignment with the weaving rotor 1 in the axial direction, so that over the entire width of the warp threads 3 extending weft insertion channel is formed. The Warp threads 3,3a, 3b, 3c, 3d are over deflection rollers 5a, 5b fed to the weaving rotor 1 and the finished fabric 3e led away from the weaving rotor 1 via deflection rollers 6a, 6b. On the surface of the weaving rotor 1 can additionally Stop slats 11 can be arranged around a weft 8 to strike safely against a stop edge 11a. Of the Web rotor 1 has a center of rotation 4 and a direction of rotation 7 on.

1b along the weaving rotor 1 Line A-A shows the course of the warp threads 3a, 3b, 3c, 3d with regard to the compartment holding elements 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h. All compartment holding elements 2 are at a distance C in spaced with respect to the weaving rotor 1 in the axial direction. Each in the circumferential direction of the weaving rotor 1 consecutive or adjacent Compartment holding elements 2 are in relation to the weaving rotor 1 axial direction offset by a distance B. The distance B is half the distance C, so the compartment holding elements 2 next to one another in the circumferential direction, that is, the compartment holding elements 2b and 2f, or the Compartment holding elements 2a and 2e, with respect to the direction of rotation 7 are arranged identically, or, in other words, in have no offset in the axial direction and therefore are arranged congruently. The warp threads 3a, 3b, 3c, 3d are arranged by a fixed and with eyelets for the Warp-providing guide element 12 out.

Through the weaving rotor 1 rotating in the direction of rotation 7, the compartment holding elements 2 are combed into the warp threads 3, 3a, 3b, 3c, 3d held by the guide element 12, so that the compartment holding elements 2 come into contact with the warp threads 3,3a, 3b, 3c, 3d. The shed holding elements 2, 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h are arranged offset on the weaving rotor 1 in the axial direction in such a way that the shed holding elements 2a, 2b raise the warp threads 3b, 3d in the radial direction, so that the Warp threads 3b, 3d assume a high point position HP in these compartment holding elements 2a, 2b. The position of the warp threads 3a, 3c, on the other hand, is not influenced by the compartment holding elements 2a, 2b, which, as shown between the compartment holding elements 2c, 2d, leads to a low point TP of the warp thread 3d, 3b. The compartment holding elements 2c, 2d are arranged offset by the distance B in the axial direction from the weaving rotor 1, so that these compartment holding elements 2c, 2d raise the warp threads 3a, 3c and bring them into a high point position HP. By influencing the radial position of the warp threads 3a, 3b, 3c, 3d, a shed W is formed in each shed holding element 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, through which a weft thread 8 can be inserted. The mutual position of the warp threads 3, 3a, 3b, 3c, 3d when the weft thread 8 is inserted determines the weave type of the woven material 3e. In the present exemplary embodiment, a so-called 1/1 weave is produced in that each warp thread 3, 3a, 3b, 3c, 3d comes to lie alternately above or below the weft thread 8 in its direction of travel. The arrangement of the compartment holding elements 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h shown in Fig. 1b is only one possibility out of a multitude of possibilities which result when compartment holding elements 2 are arranged successively in the circumferential direction of the weaving rotor in the axial direction Direction of the weaving rotor 1 can be arranged offset. As can be seen from FIG. 1b, the arrangement of the compartment holding elements 2, 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h determines the weave of the fabric 3e, so that through an appropriate arrangement of the compartment holding elements 2 on the weaving rotor 1, fabric with a large number different types of bindings can be produced. For example, 1/2 bindings or 1/3 bindings are easy to manufacture.
The compartment holding elements 2 are arranged fixedly on the weaving rotor 1, so that with the weaving rotor 1 with a fixed guide element 12 a single type of weaving can be weaved. Advantageously, weaving rotors 1 with different loading of the compartment holding elements 2 or different types of weave are kept in stock, so that when the weaving type is changed, only the weaving rotor 1 of the row shed weaving machine has to be exchanged for a weaving rotor 1 of another weaving type in order to quickly generate the desired new weaving type. Instead of replacing the entire weaving rotor 1, it is also possible to move or replace the compartment holding elements 2 arranged side by side in rows in the axial direction with respect to the weaving rotor 1, with only a part of the rows being displaced or exchanged depending on the type of weave selected.

In the illustrated embodiment, this is Guide element 12, which is also used as a laying rail is referred to, fixed with respect to the position of the rotor 1 arranged. However, it can be beneficial a plurality of guide elements 12, 12a, 12b use such that, for example, one Guide element 12a leads the warp threads 3a, 3c, and that another guide element 12b which guides warp threads 3b, 3d. It can further prove to be advantageous in that the Guide elements 12a, 12b at least in one respect the weaving rotor 1 axially movable are stored. Will the warp threads 3 through the controllable, movable guide elements 12 in the Tray holding elements 2 inserted, so the warp threads safer in the high points HP of the guide elements 2 be inserted, especially at a high Warp thread density. The weave type is 3e essentially through the arrangement of the shelf holding elements 2 determines, the controllable, movable Guide elements 12a, 12b ensure that even at high warp thread density, the warp threads 3 safely into the High points HP of the guide elements 2 or in the spaces between the guide elements 2 be inserted.

From the supervision Fig. 1c on another weaving rotor 1 is in turn a course of the weaving rotor 1 inserted warp threads 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h with respect to the compartment holding elements 2a, 2b, 2c, 2d, 2e, 2f and the Stop slats 11 can be seen. The circumferentially of the web rotor 1 arranged in succession Shelf holding elements 2a, 2b, 2c, 2d, 2e, 2f are, as well 1b, in relation to the weaving rotor 1 axially spaced. In comparison to Arrangement of the warp threads according to the embodiment of FIG. 1b has the exemplary embodiment according to FIG. 1c higher number of warp threads inserted in the weaving rotor 1 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h. The guide element 12 is fixed and motionless in the row shed weaving machine arranged and has eyelets for guiding the warp threads 3a, 3b, 3c, 3d, wherein the eyelets with respect to the Weaving rotor 1 are arranged that the warp threads 3a, 3b, 3c, 3d in high points HP and low points TP the Compartment holding elements 2,2a, 2b, 2c, 2d, 2e, 2f are inserted. With a large number of warp threads, or at a high warp thread density there is a risk that the Warp threads not in the intended high point HP or Low point come to rest, which after the entry of the Weft 8 would result in a binding error. Around the warp threads 3e, 3f, 3g, 3h also safely into the HP high points and TP low points of the shelf holding elements 2,2a, 2b, 2c, 2d, 2e, 2f the warp threads 3e, 3f are to be inserted from a parallel to the direction of the axis 4 in Direction 12c reciprocating guide member 12a guided. The guide element 12a has not shown Eyes on which guide the warp threads 3e, 3f. The same are the warp threads 3g, 3h from one towards 12d and forth movable guide element 12b. This movable guide elements 12a, 12b form together with a drive and not shown Control device a so-called laying device, the it allows the warp threads 3e, 3f, 3g, 3h depending on the Angle of rotation of the weaving rotor 1 controlled in the Insert shelf holding elements 2,2a, 2b, 2c, 2d, 2e, 2f so that the warp threads 3e, 3f, 3g, 3h safely into the corresponding High points HP and low points TP are inserted. A The advantage of the arrangement shown in Fig. 1c is therein to see that only with a high warp thread density the relatively expensive, movable guide elements 12a, 12b are required, whereas with a lower warp thread density the fixed guide element 12 is enough to Insert warp threads 3 securely.

Claims (8)

Web rotor for a row shed weaving machine with at the Surface of the weaving rotor (1) arranged Compartment holding elements (2,2a, 2b, 2c, 2d, 2e, 2f), thereby characterized that in the circumferential direction of the weaving rotor (1) successively arranged compartment holding elements (2) in the axial direction with respect to the weaving rotor (1) are at least partially offset. Weaving rotor according to claim 1, characterized in that all adjacent in the circumferential direction Compartment holding elements (2,2a, 2b, 2c, 2d, 2e, 2f) in terms the weaving rotor (1) axially offset are. Weaving rotor according to one of claims 1 or 2, characterized characterized that all in the circumferential direction Adjacent compartment holding elements (2,2a, 2b, 2c, 2d, 2e, 2f) in relation to the weaving rotor (1) offset in the axial direction by the same distance are arranged. Weaving rotor according to one of claims 1 to 3, characterized characterized that the circumferentially the next but one compartment holding elements (2,2a, 2b, 2c, 2d, 2e, 2f) in the axial direction with respect to the weaving rotor (1) are arranged congruently. Weaving rotor according to one of claims 1 to 4, characterized characterized in that the compartment holding elements (2) in Are arranged extending circumferentially. Row shed weaving machine with a weaving rotor (1) one of claims 1 to 4. Row shed weaving machine according to claim 6, characterized by at least one fixed guide element (12) for guiding and inserting the warp threads (3,3a, 3b, 3c, 3d) in the weaving rotor (1). Row shed weaving machine according to claim 7, characterized by at least one additional one related to the Weaving rotor (1) movably mounted in the axial direction Guide element (12a, 12b), for movable guiding and Insert some of the warp threads (3,3e, 3f, 3g, 3h) in the Web rotor (1).

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