EP1136604A1 - Guide bar and feeding-in device with guide bar - Google Patents

Abstract

The guide bar (10), for a rolling shed loom, has a number of spaced openings (10a) for the warps (3). The openings (10a) each have two end sections (10b,10d) with a guide section (10c) between them. The end openings (10b,10d) are wider than the intermediate guide section (10c). The maximum width of the end opening sections (10b,10d) is larger than the maximum width of the linking guide section (10c) by a factor of 5-10. The bar openings (10a) have a longitudinal shape, parallel to each other, at right angles to the longitudinal line of the guide bar (10). The guide bar (10) has two planes, along its longitudinal line, to give it an L- or U-shape. The bar openings (10a) give a warp threading opening section (10b) at one end, and a warp outlet opening section (10d) at the other end. The threading section (10b) is longer and/or narrower than the outlet opening section (10d). An Independent claim is included for a warp laying system at the rolling shed loom, with a number of guide supports with moving warp guide bars (10). A warp deflector is between neighboring guide supports. Preferred Features: The warp deflector is parallel to the guide bars (10), and especially is directly close to the guide supports. The guide bars (10) are fitted so that a warp (3) for laying is passed through the opening (10a) in the guide bar (10), to move over the deflector of the adjacent or the same guide bar (10). The warp guide bars (10) and the deflector are matched to the loom rotor position so that the warps (3) run within the guide opening sections (10c) of the guide bar openings (10a) during normal weaving. The deflector is of a wear-resistant material such as metal or ceramics. The guide supports are of plastics.

Description

The invention relates to a laying rail for row shed looms according to the preamble of claim 1. The invention further relates to a Insert device with laying rails according to the preamble of claim 7.

From document EP 0 612 875 A1 there is a laying rail for laying of warp threads in the weaving rotor of a row shed weaving machine. This laying rail is movably mounted in the direction of the weaving rotor, and has a plurality of recesses, each warp thread through a recess runs and is guided thereby. With a corresponding one Moving the laying rail is the warp threads with respect to the weaving rotor or its specialist training organs can be positioned.

A disadvantage of the known laying rail is the fact that in the case a larger thick point in the warp thread or in the case of knots warp thread breaks may occur.

The object of the present invention is an economically more advantageous one Propose rail and a suitable insertion device.

This object is achieved with a laying bar having the features of claim 1. The subclaims 2 to 6 relate to further advantageous Formations of the laying rail according to the invention.

The object is further achieved with an insertion device comprising a Laying rail according to the invention having the features of claim 7. The sub-claims 8 and 9 relate to further advantageous training.

The task is solved in particular with a laying rail for one Row shed weaving machine, having a plurality spaced apart arranged recesses for guiding warp threads, each Recess two end sections and one in between Guide section includes, and wherein the recess in the area of both end sections has a greater width than on Guide section.

Due to the relatively wide end portion of the recesses, the Laying rail according to the invention has the advantage that a thick point in the Warp thread, for example a knot, relatively unhindered by the wide End section can slide, so that due to this thick point none excessive forces act on the warp thread. The second broad End portion of the recess is used to thread the warp thread into the Laying rail. The warp threads run through during normal operation the guide section arranged between the two end sections. This guide section has a relatively small gap width, so that the warp thread guided in it very much due to the transverse movement of the laying rail can be positioned exactly. This allows the warp threads to be very precise insert into the shelf holding means arranged on the weaving rotor. On An essential advantage of the laying rail according to the invention is also in this see that the warp threads can also be inserted in the holding device, which are close to each other. So that is Production of a fabric with a higher warp thread density possible.

The insertion device, which is designed to match the laying rail, has in a preferred embodiment, a separate deflecting element for the Warp threads on. The laying rails and the deflection elements for the Warp threads to be fed to the guide rail are in a common holder, but supported spatially separate from each other. The laying rails are in attached to the holder guide supports axially movable, and the Deflection elements are stationary in separate recesses in the holder stored. The deflection elements are above and below one each warp thread array, and are preferably made of low-wear material such as metal or ceramic. Through this Design of the insertion device, i.e. especially due to the separate guide supports for the laying rails, a transfer of the resulting from the friction of the warp threads on the deflection elements Warming be kept as far as possible from the laying rails. This can cause temperature-related changes in length of the Laying rails are avoided, which is a precise holding and guiding the Warp threads made possible by means of these laying rails. The location of the warp threads is exactly reproducible, which in turn is using a fabric high warp thread density enables.

The invention is described below using an exemplary embodiment in Described in detail.

Fig. 1

eine schematische Darstellung einer Reihenfachwebmaschine mit einer Einlegevorrichtung und mehreren, Legeschienen;

Fig. 2

einen Querschnitt des Webrotors;

Fig. 3

einen Querschnitt durch eine Legeschiene sowie eine Seitenansicht der Führungsstütze;

Fig. 4

eine Draufsicht der Legeschiene aus der in Fig. 3 bezeichneten Richtung A-A;

Fig. 5a

eine Draufsicht der Ausnehmung der Legeschiene zur Führung der Kettfäden;

Fig. 5b

einen Querschnitt der Legeschiene;

Fig. 6

einen Querschnitt der Einlegevorrichtung;

Fig.7

eine perspektivische Ansicht der Einlegevorrichtung.

Show it:

Fig. 1

a schematic representation of a row shed weaving machine with an insertion device and several laying rails;

Fig. 2

a cross section of the weaving rotor;

Fig. 3

a cross section through a laying rail and a side view of the guide support;

Fig. 4

a plan view of the laying rail from the direction AA shown in Fig. 3;

Fig. 5a

a plan view of the recess of the laying rail for guiding the warp threads;

Fig. 5b

a cross section of the laying rail;

Fig. 6

a cross section of the insertion device;

Fig. 7

a perspective view of the insertion device.

1 shows a schematically illustrated row shed weaving machine 1 with a weaving rotor 2, on its surface in the direction of the weaving rotor 1 a plurality of shedding organs 5 spaced apart are arranged and form a weft insertion channel. The Shed forming organs 5 are in the circumferential direction of the weaving rotor spaced that twelve weft insertion channels for the Result in entry of one weft thread. The stock on a warp beam 6 Warp threads 3 are passed over a deflection tree 7 of the insertion device 4 fed. The insertion device 4 comprises a holding device 11 and a plurality of spaced-apart holders 14, which are a plurality of Place the laying rails 10 so that they can move in the direction B of the weaving rotor 2. Each laying rail 10 is mechanical with a drive device 12 connected. The movement B of the laying rails 10 is so with respect to rotating movement of the weaving rotor 2 is controlled so that the warp threads 3 in High or low positions of the shedding organs 5 are inserted so that forms a shed through which the weft thread can be inserted. The Warp threads loop around the weaving rotor 2 at an angle of approximately 120 °. The finished tissue is placed on a breast tree 8 Tree 9 wound up.

The cross section of the weaving rotor 2 shown in FIG. 2 shows the other Shelf-forming organs arranged on the surface 5. On the right side are the Laying rails 10 in guide support 13a, 13b, 13c, 13d and in relation to the Viewing plane slidably mounted in the vertical direction. The warp threads 3 each pass through a recess 10a of the laying rail 10 and are thereby back and forth in a direction B vertical to the observation flexibly guided.

Fig. 3 shows the laying rail 10 with guide support 13 in detail. Fig. 4 shows the arrangement shown in Fig. 3 in a section along the line A-A. The laying machine 10 has a plurality of in the direction of the Laying rail 10 spaced recesses 10a or eyelets 10a, which serve to guide the warp threads 3. The recesses 10a are elongated and have two end sections 10b, 10d, and an intermediate guide section 10c. The end section 10b can also be referred to as a threading section 10b, which is used to thread a warp thread 3 into the recess 10a. The web rotor 2 as well as the insertion device 4 with guide supports 13 and laying rails 10 are mutually arranged and designed such that the warp thread 3 during normal operation by the thread guide section 10c runs, as shown in Fig. 3 with the warp thread 3c. The Thread guide section 10c preferably has a relatively narrow Gap width, which gives the advantage that the warp threads 3 with respect to Direction of movement B of the guide rail 10 can be guided very precisely can, and therefore can be inserted very precisely in the specialist organs 5. At 4 arrangement, the warp threads 3 move during weaving from the bottom up. The warp thread 3b has one Thread thickening 3a. Due to the narrow thread guide section 10c, the node 3a moves along the laying rail 10 outside the Guide section 10c upwards and takes place in the relatively wide End portion 10d a passage, as shown in Figures 3 and 4 is shown. The laying rail 10 according to the invention thus has the Advantage on that it has a threading section 10b through which the Warp thread 3 is easy to thread that it is a relatively narrow Thread guide section 10c, which allows the warp thread 3rd to guide precisely, and that they have an outlet portion 10d and End portion 10d through which a thread thickening 3a can step through. The warp threads 3 are thus even with existing ones Gaps 3a gently and without an excessive load from the Laying rail 10 passed through. Within the thread guide section 10c, the warp thread 3 has no or only very little stress exposed. With the laying rail 10 designed according to the invention therefore the probability of a warp thread break 3 is very low. Fig. 5a shows a top view of the preferred embodiments of the recess 10a, which have two end sections 10b, 10d and an intermediate one Guide section 10c, wherein the recess 10a in the region of both end sections 10b, 10d has a greater width than on Guide section 10c.

Fig. 5b shows a cross section through an embodiment of a Laying rail 10 with the recess 10a shown in FIG. 5a. The Laying rail 10 has a U-shaped or L-shaped design Guide section 10e, 10f, which is mounted in a guide support 13 is.

• nur am Umlenkbereich 15a aufliegt,
• sowohl am Umlenkbereich 15a als auch am Umlenkbereich 15b aufliegt,
• sowohl am Umlenkbereich 15a als auch am Umlenkbereich 15c aufliegt.

FIG. 6 shows a cross section through an insertion device 4, which has a plurality of spaced-apart guide supports 13 for holding and guiding one laying rail 10 each. In a preferred embodiment, a deflection element 15 with deflection regions 15a, 15b, 15c for the warp threads 3 is arranged between the guide supports 13. 6 shows the warp thread 3 in two possible positions. The warp thread 3 can run such that it:

• only rests on the deflection area 15a,
• rests both on the deflection area 15a and on the deflection area 15b,
• rests both on the deflection area 15a and on the deflection area 15c.

In the exemplary embodiment shown, the deflection element 15 is immediate then arranged on the guide support 13. The deflecting element 15 is preferably made of a low-wear material such as metal or Ceramic. The guide support 13 can for example consist of a Be made of plastic. The generated at the deflection points 15a, 15b, 15c This arrangement has little or no effect on the frictional heat Guide support 13, so that an expansion or contraction of the Guide support 13 due to the temperature fluctuations that occur is largely avoided. This allows extremely precise guidance of the Laying rail 10 in the guide support 13. By reducing the Influence of the frictional heat on the guide supports 13 becomes simultaneous the heat transfer to the laying rails 10 is minimized, thereby Changes in length of the laying rails due to the heating the warp thread deflection points 15a, 15b, 15c do not result. The Guide supports 13 are arranged in a holder 14, the Guide supports 13 and the respective holder 14 are also formed in one piece could be. The holder 14 also serves to receive the deflection elements 15.

Fig. 7 shows a perspective view of the insertion device 4. A A plurality of regularly spaced deflecting elements 15 are one Holder 14 held. There are also about 5 mm wide guide supports on the holder 13 attached, in which the respective laying rails 10 in Direction of movement B are slidably mounted. The warp threads 3 run advantageously in the insertion device 4 in such a way that, as in FIG shown, have two deflection points, the deflection on low-wear deflection element 15 takes place.

During normal operation of the row shed weaving machine 1, the holder 14, the deflection element 15, the laying rail 10 and the weaving rotor 2 with Fachbildeorgane 5 arranged mutually adapted, and the Warp threads 3 are guided such that the warp threads 3 in the deflection area 15a rest and run in the thread guide section 10c of the laying rail 10. As soon as a warp thread 3 has a warp thread thickening 3a, this gives way Warp thread 3 at short notice from the normal position described by the Thickening 3a, as shown in FIGS. 3 and 4, along the surface the laying rail 10 slides until it passes through the outlet opening 10d. Then the warp thread 3 automatically jumps back to the normal position back and again runs through the thread guide section 10c.

The embodiment of a recess 10a or one shown in FIG. 5a Eyelet 10a is just one embodiment of a variety of To consider configurations that have the feature that on both Ends of the thread guide section 10c end sections 10b, 10d are arranged, which have a larger gap width than that Guide section 10c. The end sections 10b, 10d could also circular, oval, rectangular, triangular, elliptical or any other geometric shape.

In a preferred embodiment, the maximum width is End sections 10b, 10d five to ten times the maximum width of the Guide section 10c.

The recesses 10a are preferably elongated and along the Laying bar 10 arranged mutually parallel. Preferably The recesses 10a run vertically or essentially vertically to the longitudinal direction of the laying rail 10. As shown in Fig. 5, the The threading section 10b may be longer than the outlet section 10d. In a further embodiment, the threading section 10b can also be a have a smaller or a larger width than the outlet section 10d.

Claims (11)

Laying rail (10) for a row shed weaving machine (1), comprising a plurality of spaced-apart recesses (10a) for guiding warp threads (3), characterized in that each recess (10a) has two end sections (10b, 10d) and a guide section lying between them ( 10c) and that the recess (10a) has a greater width in the region of the two end sections (10b, 10d) than on the guide section (10c). Laying rail (10) according to claim 1, characterized in that the maximum width of the end sections (10b, 10d) is greater by a factor of 5 to 10 than the maximum width of the guide section (10c). Laying rail (10) according to one of claims 1 or 2, characterized in that the recesses (10a) are elongate and are mutually parallel. Laying rail (10) according to claim 3, characterized in that the recesses (10a) are substantially perpendicular to the longitudinal direction of the laying rail (10). Laying rail (10) according to one of the preceding claims, characterized marked that their cut along a substantially plane running perpendicular to the longitudinal direction of the laying rail (10) is essentially L-shaped or U-shaped. Laying rail (10) according to one of the preceding claims, characterized in that the one end section is designed as a threading section (10b) and the other end section as an outlet section (10d), and in that the threading section (10b) has a greater length than the outlet section (10d) and / or that the threading section (10b) has a smaller width than the outlet section (10d). Insert device (4) comprising a plurality of spaced apart arranged guide supports (13) with movably mounted therein Laying rails (10) according to one of the preceding claims, wherein between two adjacent guide supports (13) Deflection element (15) for deflecting the warp thread (3) is arranged. Insertion device (4) according to claim 7, characterized in that the deflection element (15) runs parallel to the laying rails (10), and in particular is arranged directly next to the guide support (13). Insert device (4) according to one of claims 7 or 8, characterized in that the guide rail (10) guided in a guide support (13) with a recess (10a) is configured in this way and arranged with respect to the adjacent guide support (13) and its deflecting element (15) is that a warp thread (3) to be inserted runs through the recess (10a) of the laying rail (10) and over the deflection element (15) of the adjacent or the same guide rail (13). Insertion device (4) according to one of Claims 7 to 9, characterized in that the laying rail (10) and the deflection element (15) are arranged such that they are adjusted with respect to the position of the weaving rotor such that the warp thread (3) during normal weaving operation within the thread guide section (10c) of the recess (10a). Row shed weaving machine comprising laying rails (10) according to one of the Claims 1 to 6 or comprising an insertion device (4) according to one of claims 7 to 10.

Images