WO2017080538A1

WO2017080538A1 - Weaving machine, method for operating a weaving machine, and woven fabric structure

Info

Publication number: WO2017080538A1
Application number: PCT/DE2016/000331
Authority: WO
Inventors: Uwe Merklein; Achim Schröter; Jan Jordan; Yves-Simon Gloy; Thomas Gerhard GRIES
Original assignee: ITA Technologietransfer GmbH
Priority date: 2015-11-09
Filing date: 2016-08-26
Publication date: 2017-05-18
Also published as: DE102016006057A1; DE112016005130A5

Abstract

The invention relates to a weaving machine for producing a woven fabric structure from warp threads and weft threads, comprising a reed device (10) having a plurality of reed dent elements for producing sheds between warp threads spread apart from each other, at least one weft thread transport part for guiding the weft thread within the produced sheds along a guide track formed by the reed dent elements, an endlessly circulating carrier element for carrying the at least one weft thread transport part, which carrier element is deflected around two deflection disks arranged at a distance from each other, and, with respect to the guide track formed by the reed dent elements, an at least incoming transfer element for transferring the at least one weft thread transport part between the endlessly circulating carrier element and the guide track formed by the reed dent elements, wherein the transfer elements each have a transfer track, and wherein the transfer tracks and the guide track formed by the reed dent elements are arranged one after the other in the direction of motion of the weft thread transport part, and the weaving machine is distinguished in that, on the reed device side, the endlessly circulating carrier element is deflected further radially inward into an intermediate space between the two deflecting disks in such a way that, at least on the entry side of the reed device, the transfer track is inclined at a slight angle of inclination of less than 5° to the guide track formed by the reed dent elements and is designed entirely without a ramp-like rise.

Description

Weaving machine, method for operating a loom and tissue structure

The invention relates to a loom for producing a fabric structure of warp and weft threads comprising a reed with a plurality of Rietstabelementen for generating sheds between divergent warp, comprising at least one weft transport member for guiding the weft thread within the generated sheds along a designed by the Rietstabelemente guideway comprising an endlessly circulating carrier element deflected about two spaced-apart deflecting disks for carrying the at least one weft transporting part, and comprising an at least incoming transfer element for transferring the at least one weft transporting part between the endlessly circulating carrier element and the guideway configured by the riveting rod elements the guideway formed by the Rietstabelemente, wherein the transfer elements each have a transfer path, and wherein the exercises Rittgebahnen and the configured by the Rietstabelemente guideway are arranged in the direction of movement of the weft transport member behind the other.

In addition, the invention relates to a method for operating a loom, in particular for edge formation on a fabric structure produced by the loom of warp and weft threads, wherein at least one shed is produced by means of a reeling device of the loom with respect to warp, in which a weft by means of a weft transport part is introduced with a direction of movement in the at least one shed.

Furthermore, the invention relates to a fabric structure of warp and weft thread with at least one edge region.

In particular, generic weaving machines are already known from the prior art.

For example, from publication DD 279 700 A5 a weaving machine is known in which a projectile, which has at least one permanent magnet, is magnetically attracted by another permanent magnet which is mounted on a revolving belt

confirmation copy is arranged, is pulled through looms, the projectile in the field of looms over horizontal areas of Rietzähnen a Rieteinrichtung the loom glides over. Outside the sheds or Rietzähne the projectile slides over a designated as a shooter surface and is returned to the beginning of the looms or the Rietzähne back over this Schützenbahn from the end of the Rietzähne or the looms of belt movement following. The fact that the shooter track is spaced at any location of its extension to the belt surface, it follows inevitably that the sliding over this shooter projectile projectile at each location of its trajectory has a distance from the belt and the moving through the belt permanent magnet. The projectile has in this prior art along its entire path of movement at a constant distance from the belt surface. Here, however, there is the problem that in the deflection areas in which the belt is guided around the pulleys on the following projectile this projectile significant centrifugal forces act, which would cause the projectile would lift off the shooter track in the deflection , To avoid this, it is provided in the said prior art that in the deflection areas, that is, the pulleys approximately semicircular surrounding a plurality of rollers is arranged so that the projectile in these areas between the semi-circular curved Schützenbahn and the roles arranged around it is performed. The roles cause here that the projectile can not stand out from the shooter track due to the centrifugal forces. In order to prevent a deceleration of the projectile in this deflection, it is further provided to actively drive the rollers with another belt. This construction mentioned makes the belt drive such a loom constructively very expensive and also reduces the possibilities to increase the web speeds on.

In order in particular to avoid the disadvantage of the unwanted lifting of a shooter from a magnetised shuttle track in the area of the semi-circularly curved shuttle track, the document EP 1 074 646 B1 describes a weaving machine in which the shooter on the inside of a circulating carrying belt a corresponding revolving shooter track is arranged so that the shooter is pressed in a semi-circular curved Schützenbahnbereich the circulating support belt by the prevailing centrifugal forces against the inside of the circulating support belt and thus can not unintentionally lift off the strap. To the shooter in the range of Rietzähnen a Rieteinrichtung the weaving machine from the circulating strap and transfer to a formed by the Rietzähne Schützenführungsweg, the inlet side of Rieteinrichtung a ramp portion is provided with a wedge-shaped end, so that the shooter can accrue by means of the wedge-shaped end easier on the ramp part. In order to avoid unintentional lifting of the protection from the ramp part, a lowering unit is arranged radially further inwards at the level of the ramp part, which prevents the shooter from flying off into the weaving machine space due to the ramp effect. By this lowering the free design of the shooter is relatively limited. In DE 26 54 052 A another loom with an endlessly circulating support for carrying a shooter is described, wherein the shooter on the outside of the carrier by means of magnetic attraction forces on a suitably designed driver is releasably supported. Unintentional release of the shooter from the outside of the carrier in a curved region of the carrier is ensured by a full-surface contact with respect to the outside of the carrier and the shooter underside. So that the shooter can still be moved from the outside of the carrier and spaced apart by a gap of the driver by a loading of a reeling device of the loom, the shooter on the inlet side of the tray is brought by means of a rising guide to a higher height level than the driver. By means of an appropriately designed transfer track, it is possible for the shooter to be moved in the loading above reed elements of the reed device, while the driver and the endlessly circulating carrier are guided underneath these reed elements. This rising guide can be formed by appropriately trained rows of teeth on which the shooter runs. Or guide ramps are provided with at least partially rising slideways, in which formed on the shooter cams or shoulders are displaced.

The abovementioned solutions have the disadvantage that they are designed in some cases quite expensive, which alone considerably limits the possibilities for achieving higher processing speeds. The invention has for its object to further develop generic weaving machines in order to overcome at least the above-mentioned disadvantages. The object of the invention is a loom for producing a fabric structure of warp and weft threads comprising a reed with a plurality of Rietstabelementen for generating sheds between divergent warp threads, comprising at least one weft transport member for guiding the weft thread within the generated sheds along a characterized by the Rietstabelemente guideway comprising a deflected by two spaced deflecting discs, endlessly circulating support member for supporting the at least one weft transport member, and comprising with respect to the Rietstabelemente designed guideway an at least incoming transfer element for transferring the at least one weft transport member between the endlessly circulating support member and solved by the Rietstabelemente designed guideway, wherein the transfer elements each have a transfer path in which the transfer webs and the guideway configured by the Rietstabelemente in the direction of movement of the weft conveyor port are arranged one behind the other, and wherein the loom is characterized in that the endlessly circulating support member on the Rieteinrichtungsseite so radially further inside in a space between the two deflecting discs is deflected, that at least at the inlet side of the reed the transfer track is inclined with a small inclination angle of less than 5 ° relative to the configured by the Rietstabelemente guideway and designed entirely without a ramp-like increase.

Due to the proposed construction, the height difference between a support surface provided by the finally encircling support element in a region above the upper apex of the deflection pulley and the transfer track and / or the guideway configured by the Rietstabelemente is considerably reduced or even eliminated in its entirety. In other words, both the transfer track and the guideway configured by the Rietstabelemente can be further lowered in the direction of axes of rotation of the deflection plates, which in turn the distance between the transfer track or the guideway and the upper vertex of the deflection plates can be reduced, whereby a rampless transfer of the Weft transport member can be achieved to the configured by the Rietstabelemente guideway. In this respect, it is possible with the present invention, on the one hand, that the weft transport part abuts and can be fastened to the endlessly circulating support element as completely as possible and thus particularly intimately so that it can be reliably ensured even at extremely high circulating speeds of the endlessly circulating support element the weft transport member securely adheres to this even in curved areas of the endlessly circulating support member.

On the other hand, in the present case, it is possible that the weft transport part can be easily transferred from this to the guideway configured by the rivet bar elements, even at extremely high rotational speeds of the endlessly circulating carrier element without a run-up ramp, and vice versa.

In particular, the latter has the effect that in a region of the transfer elements the forces acting radially outwards on the weft transport part can be significantly reduced, so that the danger is considerably reduced that the weft transport part unintentionally lifts off from the transfer web and possibly the magnetic interaction between the transfer web Weft transport part and the endlessly circulating support member tears to a critical extent.

None of the solutions mentioned above can afford this in a structurally simple and effective manner, as is the case here. It may already be sufficient in many applications, if the proposed construction refers only to the inlet side arranged transfer element. It is understood that preferably also the outlet-side transfer element is designed accordingly in order to use the positive effects there as well.

The term "transfer element" here describes a component of the weaving machine, by means of which the transfer can be facilitated or accomplished, in particular, by the endlessly circulating carrier element to the guideway configured by the rivet bar elements. along which the weft transport member moves when it is to be transferred from the carrier element to the guideway. The transfer track is at least in the direction of movement of the weft transport member designed substantially flat. More precisely, the transfer track has no critical area or critical ramp-like rise in any area of the track, which involves the risk that the weft transporting part may unintentionally come off the transfer element. Furthermore, the transfer track or the transfer element with respect to the guideway is not at all or only negligibly inclined.

By means of the Rietstabelemente different sheds can be generated in a known manner, into which or through which the weft thread is moved transversely to the fanned warp threads. These Rietstabelemente are bent so that they each have a substantially horizontally oriented portion, by means of which in their entirety a running transversely to the fanned warp yarns guideway can be formulated.

In general, the structure and operation of a Rietstabelemente comprehensive reed device are well known, so that this is not explained in detail here.

The configured by the Rietstabelemente guideway extends here transverse to the warp on a side facing away from the endless circulating support member side of the Rietstabelemente.

For the purposes of the invention, the term "carrier element" is a circumferential drive means for the weft transport part, whereby this revolving drive means may be designed differently, such as a belt element or chain element or the like This is preferably done by means of a magnetic interaction between the carrier element and the weft transport part, as is customary in the prior art For this purpose, permanent magnets are integrated in the carrier element and the weft transport part is at least partially magnetizable, or vice versa.

For the purposes of the invention, this carrier element can be moved back and forth, that is, in other words, that the endlessly circulating carrier element is drivable not only in a first direction of movement (forward movement) transverse to the warp threads, but also also in a further, opposite to the first direction of movement direction (backward movement). In the present case, this means that the weft transport part can also be moved forwards and backwards in order to produce advantageous tissue structures, as will be described in more detail later.

In the present case, the term "weft thread transport part" describes a component by means of which a weft thread can be grasped on the input side of the reed device and transported or transported transversely to the warp threads designed a kind of projectile.

On the one hand, the intermediate space is delimited at the front and at the rear by the two deflecting disks, the space being at the top and bottom, ie on the reed device side (at the top of the weaving machine) and on the opposite side (at the bottom of the weaving machine), each by an imaginary one Line is limited, wherein the upper imaginary line connect the two upper vertices of the deflection plates and the lower imaginary line the two lower vertices of the deflection plates together.

A deflection of the endless encircling support element in the space inside, can be done very varied rich. For example, roller elements are provided for this purpose, which roll on the endlessly circulating carrier element. Cumulatively or alternatively also fixed sliding elements can be installed.

Advantageously, each area of at least the incoming transfer web arranged in relation to the guide web configured by the rivet bars is thus arranged with a tilt angle of less than 5 ° or preferably of 0 °, whereby the weaving machine can be reliably operated at a considerably higher processing speed.

It is particularly advantageous if at least the incoming transfer web and the guide web configured by the Rietstabelemente are aligned aligned or plane-parallel zuein- aligned. Here, the risk of a ramp effect is almost impossible. The transfer of the weft transport part between the endlessly circulating carrier element and the guide web designed by the Rietstabelemente can be further improved if a height difference between the transfer path and the Rietstabelemente designed guideway is less than 10 mm, preferably less than 5 mm. The most secure way to succeed, a transfer, if the height difference is 0 mm, so practically a difference in height is not present.

In particular, the designed by the Rietstabelemente guideway may be slightly deeper, so be arranged closer to a fictitious connecting line of two axes of rotation of the deflecting, as in particular the input side arranged transfer path is it.

In particular, the transfer track can be placed slightly lower at least on the input side, that is to say be arranged closer to a fictitious connection line between two axes of rotation of the deflection pulleys, than the support surface of the endlessly circulating support element is in the region of the upper vertex, in particular of the front deflection pulley. It is advantageous, although here the height difference is 0 mm, so there is practically no difference in height.

Thus, a roughly planar movement distance for the weft transport part can be provided on the reed device side of the weaving machine.

[35] Preferably, this planar movement path extends from an area above the upper vertex of the front deflecting disk to a region above the upper vertex of the rear deflecting disk.

Furthermore, according to a further first aspect of the present invention, it is also advantageous, independently of the other features of the invention, if the reed device has an abutment device for interaction with this endlessly revolving carrier element on the side facing the endlessly circulating carrier element, abutment elements of this abutment device on reed bar elements the Rieteinrichtung are arranged.

By means of the abutment device provided here, on the one hand, additional guidance in the region of the reed device and, on the other hand, as a result of this, excellent vibration reduction with regard to the endlessly circulating carrier element can be achieved. the, whereby its rotational speed and thus the processing speed of the loom can be improved overall. Thus, a simple-build additional guidance of endlessly revolving carrier element can be realized.

But also a deflection of the endlessly circulating carrier element in the above-described intermediate space can be carried out with appropriate design by the Anlageele- elements or at least favored.

It is understood that the contact elements can be configured in many ways. For example, sheet metal parts or the like can be arranged on at least some of the Rietstabelemente for this purpose.

If the contact elements of Rietstabelementen physically designed, the proposed investment facility can be structurally extremely easy integrated into the loom or retrofitted.

It is particularly expedient if the contact elements are arranged on a portion of Rietstabelementen extending approximately parallel to the endless circulating support member. In this way, you can interact very effectively with the endlessly circulating support element to reduce vibration.

Although the abutment elements can be placed at different locations of the Rietstabelemente to guide the endlessly circulating support member well. Advantageously, the abutment elements can interact with the endlessly circulating carrier element if the abutment elements are arranged off-center of the guideway configured by the ridged-rod elements. This eccentric arrangement relates to the longitudinal extent of the endlessly circulating carrier element or in the direction of rotation thereof.

In particular, the contact elements in this arrangement do not influence, or if at all only negligibly, the magnetic interaction between the endlessly circulating carrier element and the weft transport part. In order to always ensure a particularly good contact of the contact elements with respect to the endless peripheral support element, the contact elements could also be arranged spring-biased on the Rietstabelementen. By means of the abutment device described herein weaving machines can be further developed without the other features of the present invention. Also independently of the other features of the invention, it is advantageous according to another aspect of the invention, when the endless encircling support member comprises means for vibration reduction, which are arranged on the Rietstabelementen facing outside of the endless circulating support member and interact with arranged on Rietstabelementen investment elements. The means for vibration reduction allow a further increased rotational speed of the endlessly circulating carrier element and thus also an increased processing speed of the loom as a whole, whereby the weaving machine can be operated much more effectively.

It is understood that these means for vibration reduction can be realized in a variety of ways, as long as they work together easily with the contact elements of the Rietstabelemente. In particular, it is advantageous if the rieteinrichtungsseitig provided conditioning elements and the carrier element side arranged means for vibration reduction interact as reduced friction with each other so as not to act unnecessarily braking the rotational speed of the endlessly circulating support member. In this respect, it is advantageous if the means for reducing vibration comprise sliding block elements and / or roller elements, by means of which they can slide and / or roll along complementarily designed contact elements on the reed device.

In order to ensure a still very good contact between the Anlageele- elements and the endless circulating support member even at a normally occurring during operation wear especially on the endless peripheral support member, it is advantageous if the means for vibration reduction are spring-biased, and in particular spring-biased press against complementarily configured contact elements on the reed device.

It has been found that the means for vibration reduction can be integrated particularly well when the means for vibration reduction are arranged eccentrically on the endlessly circulating support member. Also this off-center arranging relates on the longitudinal extension of the endlessly circulating carrier element, ie on the circumferential direction of the endlessly circulating carrier element.

If the means for reducing the vibration are arranged laterally next to a holding device for holding a weft transport part, the weft transport part can be held centrally on the endlessly circulating carrier element.

Moreover, according to a next aspect, even without the other features of the invention, a pre-acceleration device for pre-accelerating a weft thread by means of which a weft thread to be introduced into a shed produced by the reeving device is pre-accelerated before this weft thread is further accelerated by the weft transport part.

A pre-acceleration of the weft thread preferably also takes place with a high acceleration component in the direction of movement of the weft transport part, so that this pre-accelerated weft thread can then advantageously be taken along by the actual weft thread transport part.

As a result, the weft thread can be accelerated to very high speeds even on shorter designed and designed by the Rietstabelemente guideways, without mechanically loading the weft more than at conventional speeds on train. Alternatively, the weft thread is less mechanically stressed at conventional speeds.

With regard to the design of this Vorbeschleunigungseinrichtung it is clear that there are many opportunities here.

A first good embodiment variant provides that the pre-acceleration device comprises a plurality of mutually corresponding rotation elements which form a pre-acceleration lane along which the weft thread can be pre-accelerated.

In this case, the structure of this pre-acceleration device can be easily simplified if at least one rotational element of the pre-acceleration device comprises a deflecting plate for deflecting the endlessly circulating carrier element. Another very well suited embodiment variant, in order to accelerate a weft thread in the sense of the present invention, provides that the pre-acceleration device comprises a weft thread clamp with a deflection disk for deflecting the endlessly circulating support element, wherein the weft thread clamp is arranged translationally displaceable on this deflection disk.

The weft thread clamp insofar preferably comprises a push member, which is mounted in a suitable manner on the deflection disk, for example with a spring-loaded groove-groove connection or the like.

Namely, the weft thread clamp is arranged translationally displaceable on the deflection pulley such that its displacement path extends from radially further inward to radially further outward on the side wall of the deflection pulley. In this case, the displacement path can be straight or curved.

In superimposition with a rotational movement of the deflection pulley, with respect to the translational displacement path, an acceleration curve directed radially further outward for the weft thread clamp so supported on the deflection pulley results, so that a steadily increasing pre-acceleration can be achieved. Furthermore, it is advantageous if the pre-acceleration device comprises means for detecting a weft thread, means for taking along the weft thread and means for transferring the pre-accelerated weft thread to the weft thread transport part. These means may be somewhat constructed as the pre-accelerating lane or rotating elements or as clamps of the weft thread clamp. The Vorbeschleunigungseinrichtung can be integrated into the construction of the present loom particularly space-saving, if the Vorbeschleunigungseinrichtung is at least partially disposed within the bounded by the endless circulating support member area.

Preferably, this Vorbeschleunigungseinrichtung can also be arranged completely in this bounded by the endless circulating support member area.

By means of the pre-acceleration device, a weft thread can be pre-accelerated with a considerably reduced jerking motion and thus also weft-sparing, so that such Vorbeschleunigungseinrichtung advantageously further develops generic looms without the other features of the invention. Furthermore, it is also advantageous, independently of the other features of the invention, when the weaving machine comprises a weft thread clamping device for clamping the weft thread in an edge region of warp threads, which is arranged permanently on the output side of the reed device in order to be able to clamp the weft thread independently of the weft thread transport part. By such a stationarily arranged weft thread clamping device, the weft thread when leaving the weft transport part can be decoupled easily and reliably, without requiring the weft transport member stopped or its speed must be reduced.

The weft thread can be reliably clamped by the weft thread clamping device even with a very fast rotating weft transport part when the weft thread clamping device has an electromagnetic actuating drive.

Furthermore, it is advantageous for the weft transport part to comprise a weft depot in order to carry sufficient weft thread material in the case of a simple or multiple change of direction of the direction of movement of the weft thread transport part that is carried out within a shed. This makes it possible to move the weft transport part within a shed or a plurality of sheds in particular back and forth several times without the weft thread is separated and injected here new, which in turn tissue structures can be created with newly created edge formations. The object of the invention in this connection is also achieved by a method for operating a weaving machine, in particular for edge formation on a fabric produced by the loom of warp and weft threads, wherein at least one shed is produced by means of a reeling device of the loom with respect to warp threads in which a weft thread is introduced with a direction of movement by means of a weft thread transport part into the at least one shed, wherein the method is characterized in that the weft thread transport part with the same weft thread at least once undergoes a reversal of direction of motion within the at least one shed to form one or more edges relative to the fabric during the actual weaving operation. As a result, very different fabric edges can be produced particularly easily in terms of process technology, and this with only a single weft thread. In particular, two opposing edges can thus be produced only by a single weft thread.

For this purpose, the weaving machine is not operated in a continuous operating state with respect to the endlessly circulating support member, but the endlessly circulating support member is alternately moved back and forth with respect to its direction of movement.

An advantageous variant of the method provides that the weft thread undergoes a reversal of the direction of movement within the at least one shed at least once, without this weft thread leaving this shed.

If the weft thread remains within the warp thread arrangement, ie within the fanned-out looms, edges or edge regions can be produced on a fabric in a very simple way.

In this respect, it is advantageous if the weft transport part is moved alternately within the at least one shed - or else in several sheds.

If the weft transport part with different amplitudes alternately within the at least one shed - or in several sheds - moves, even more constricting edges or edge regions can be easily generated by means of a single weft thread. To ensure that sufficient weft thread material is available for weaving the edge-forming weft thread during this new procedure, it is advantageous if the weft thread transport part holds further weft thread material for at least one movement direction change, so that the same weft thread can be deflected several times without interruption within the at least one shed. With the method described here, fabric structures can be produced with immediately integrated edge regions, wherein these edge regions are distinguished by a particularly high strength. In addition, a fraying of the fabric structures in the region of these edge regions is completely ruled out since the weft thread is obtained continuously in several layers transversely to the warp threads running in the fabric structure. In this respect, the object of the invention is also achieved by a fabric structure of warp and weft threads having at least one edge region, in which one or two edge regions of the fabric structure are produced with only a single weft thread or with two weft threads. As a result, edge regions can be formed effectively and stably.

Such an edge region can be produced particularly quickly if the weft thread forming the edge region is arranged without interruption in the direction of the longitudinal extent of the warp threads meandering in the fabric structure. In this way, in addition, a particularly stable edge is formed on the fabric structure.

If the weft thread forming the edge region is arranged in the tissue structure in the direction of the longitudinal extent of the warp threads in several superimposed layers, the stability of the fabric structure can be further improved.

A long edge area can be created very quickly when the multiple superimposed layers are spaced apart.

Preferably, the distance between the individual superimposed layers is a multiple of the diameter of the weft thread. It is very expedient if the weft thread extends in the longitudinal extent of the warp threads and the weft thread in this case repeatedly crosses warp threads at an angle, in particular at a right angle. As a result, a fixed edge region can be generated very quickly on the fabric structure.

It is understood that the weft thread opposite the warp threads can be embedded differently oriented in the fabric structure. For example, an edge or an edge region is formed such that the weft thread in the fabric structure extends transversely to the warp threads in a first direction, approximately in the direction of movement of the weft transport member, then deflected behind one of the warp threads in the direction of the longitudinal extent of the warp threads, in order to then one of the first direction opposite opposite direction runs back, and is then deflected at another of the warp threads again in the direction of the longitudinal extent of the warp threads, etc., so that by means of the weft thread, the at least one edge region is formed.

It is understood that the features of the solutions described above or in the claims can optionally also be combined in order to implement the advantages in a cumulative manner.

At this point it should be mentioned that in individual solutions described here, the weft transport part can be arranged on the outside and / or on the inside of the endlessly circulating carrier element.

Further features, effects and advantages of the present invention will be explained with reference to the appended drawing and the following description, in which an example of a basic structure of a loom and partial aspects thereof are shown and described.

In the drawing show:

1 schematically shows a side view of a loom for producing a fabric structure of warp and weft threads with respect to a Rieteinrichtungs- page radially further inside a space between two deflection deflected endless circulating support member;

FIG. 2 schematically shows a detailed view of a reed rod element of the reeving device of the weaving machine shown in FIG. 1 with a contact device for interacting with a roller element of the endlessly circulating carrier element; FIG. 3 schematically shows a detailed view of a reed rod element of the reeving device of the weaving machine shown in FIG. 1 with a contact device for interacting with a spring-biased sliding element of the endlessly circulating carrier element; FIG. 4 schematically shows a view of a first pre-acceleration device with a multiplicity of rotation elements which correspond to one another;

FIG. 5 schematically shows a view of a further pre-acceleration device with a weft thread clamp arranged so as to be translationally displaceable on a deflection plate;

FIG. 6 schematically shows a view of another pre-acceleration device with rotation elements comprising a deflection disk;

Figure 7 schematically shows a plan view of a Randfadenklemmeinrichtung in a first

Operating condition;

FIG. 8 schematically shows a further plan view of the edge thread clamping device shown in FIG. 7 in a further operating state; FIG. 9 schematically shows a view of a balance of forces of a lifting magnet or a pushing magnet of a peripheral thread clamping device;

FIG. 10 is a schematic view of a first alternative edge thread clamping device;

FIG. 11 schematically shows a view of a further alternative edge thread clamping device; Figure 12 is a schematic view of an alternative weft transport member with a

Weft Depot;

FIG. 13 schematically shows a plan view of a first exemplary fabric with edge courses formed by a single weft thread;

FIG. 14 schematically shows a plan view of a second exemplary fabric with other edge profiles formed by a single weft thread;

FIG. 15 schematically shows a plan view of a third exemplary fabric with edge courses formed by a single weft thread; and

Figure 16 is a schematic plan view of a fourth exemplary fabric with two

Weft threads formed edge courses. The loom 1 shown in the figure for producing a fabric structure 2, 3, 4 or 5 (see Figures 12 to 15) of warp and weft threads 6 and 7 and 8 (see also, for example, Figures 12 to 15) has a reed 10 with a plurality of Rietstabelementen 11 (here only exemplified) on. By means of the reed 10 and in particular their Rietstabelemente 11 different sheds 12 can be generated from divergent warp threads 6, as shown for example with reference to FIG 2.

In addition, the weaving machine 1 has a total of three weft conveyor parts 15, 16 and 17, wherein the weft conveyor parts 15, 16 and 17 shot in the manner of projectiles (not separately numbered) transversely to the reed 10 in the direction of movement 18 in the longitudinal direction 19 of the loom 1 or can be moved. By means of these weft conveyor parts 15, 16 and 17, a weft thread 6, 7 or 8 can thus be introduced from an incoming side 20 into the generated sheds 12, wherein the respective weft conveyor parts 15, 16 and 17 then along a through the Rietstabelemente 1 1 configured guideway 21 is moved. The weft conveyor parts 15, 16 and 17 can leave the reed device 10 on an outgoing side 22 again and be transported in the direction of the incoming side 20.

In this case, the guide track 21 is formed by a plurality of movement direction 18 Rietstabelemente 1 1 arranged one behind the other, more precisely by a substantially horizontal portion 23 (see for example Figure 2) of the Rietstabelemente 11, if they are aligned in accordance with the reed 10. The transport of the weft transport parts 15, 16 and 17 takes place by means of a deflecting disks 25 and 26 arranged at a distance from one another and revolving endlessly around the carrying element 27 for carrying the respective weft transport part 15, 16 and 17, respectively.

The endlessly circulating carrier element 27 is (at least in this embodiment) configured as an endless toothed belt (not numbered separately).

The deflecting disks 25 and 26 rotate in this case about an axis of rotation 28 (numbered only by way of example) which, in conjunction with a fictitious connecting line 29, the loom 1 in a reed 10 having upper half 30, on which in Substantially the actual weaving process takes place, and is subdividable in one of these upper half 30 opposite lower half 31, on which essentially the return transport of the weft conveyor parts 15, 16 and 17 to the incoming side 20 takes place.

The weft transport parts 15, 16 and 17 are fixedly but releasably supported in this embodiment by means of a magnetic interaction on the endlessly circulating support member 27. In order to establish this magnetic interaction, permanent magnets 32 are incorporated in the endlessly circulating carrier element 27, while the weft conveyor parts 15, 16 and 17 are at least partially magnetizable, so that they are always attracted to the permanent magnets.

In order to be able to transfer the respective weft thread transport part 15, 16 or 17 from the endlessly circulating support element 27 to the guide track 21 configured by the reeding rod elements 11, in areas above the deflection pulleys 25 and 26 between the endlessly circulating support element 27 and the guide track 21 respectively a transfer element 34 (numbered only as an example), which on the side facing away from the endless circulating support member 27 (not separately numbered) in each case at least in the direction of movement 18 entirely planar transfer path 35 (numbered only exemplarily) configured.

The transfer tracks 35 and the guide track 21 configured by the rivet bars 1 1 are arranged one behind the other in the direction of movement 18 of the weft transport parts 15, 16 and 17. Here, the transfer tracks 35 and the ausgestalt by the Rietstabelemente 11 guideway 21 are substantially aligned in a common horizontal plane 36 to each other, wherein at the same time in the region of the upper vertex 40 (only exemplified) of the respective deflection plate 25 and 26 in the sense of a support surface 41 used outside 42 of the endlessly circulating support member 27 is also in this common horizontal plane 36, so that the endlessly circulating support member 27, the transfer members 34 and the horizontal portions 23 (see FIGS 2 and 3) of Rietstabelementen 11 form a substantially continuous plane, upper movement path 43, similar to a formulated only by the endless encircling support member 27 lower movement path 44. This substantially continuous plane, upper movement path 43, along which the weft conveyor parts 15, 16 17 can be moved toward the reeving device 10 without appreciable differences in height, allows extraordinarily high processing speeds on the present weaving machine 1, since the weft conveyor parts 15, 16 and 17 act essentially only in axial forces which point in the direction of movement 18. As a result of the smooth, planned course, only negligible radial forces act, if at all, which are directed transversely to the direction of movement 18.

The upper movement path 43 can therefore be carried out so flat on the weaving machine 1, since the endlessly circulating support member 27 on the Rieteinrichtungsseite (upper half 30) radially to the inside in a gap 48 (hatched) between the two deflection plates 25 and 26 is deflected in that, at least at the incoming side 20 of the reed device 10, the transfer track 35 is inclined at a slight angle of inclination of less than 5 ° with respect to the guideway 21 configured by the reed bar elements 11 and / or entirely without a ramp-like rise. The intermediate space 48 is defined in the present exemplary embodiment by a peripheral edge (not specifically numbered), which on the one hand is delimited by the curved outer contours 49 (numbered only by way of example) of the two deflecting disks 25 and 26 at the front or rear. On the other hand, the gap 48 is above and below, so on the Rieteinrichtungsseite (upper half 30 of the loom 1) and on the opposite side (upper half 31 of the loom 1) thereof, each bounded by an imaginary line 50 and 51, the upper imaginary Line 50, the two upper vertices 40 of the deflection plates 25, 26 and the lower imaginary line 51, the two lower vertices 52 of the deflection plates 25, 26 interconnect.

A corresponding deflection of the endlessly circulating carrier element 27 is achieved here by at least two deflection rollers 53, wherein other deflection components can be used. In the prior art, in similarly constructed weaving machines, a ramp is always required on a corresponding transfer track in order to be able to overcome a different height level between an outer side of an endlessly circulating support element and a guideway configured by means of ridging rod elements.

In the present case, however, such a height difference 55 is not present and each area at least the incoming transfer web 35 arranged in relation to the pass through the Rietstabelemente 1 1 ausgestalte guideway 21 is preferably arranged at an inclination angle of 0 °. As shown in FIGS. 2 and 3, the reed device 10 comprises on the side 57, which faces the endlessly circulating support element 27, a contact device 58 for interacting with this endlessly circulating support element 27. The abutment device 58 is characterized by abutment elements 59 which are connected to reed bar elements 11 the reed device 10 are provided. These system elements 59 are formed at least here by sheet metal body 60, which are placed on the horizontal portion 23 of the Rietstabelemente 1 1.

In this case, the abutment elements 59 are placed on the lower side (the endlessly surrounding support element 27 facing side 57) of the horizontal section 23 and also on the far right on the horizontal section 23. The abutment elements 59 are therefore arranged eccentrically on the horizontal section 23, in particular also with respect to the endlessly circulating carrier element 27.

So that the endlessly circulating carrier element 27 can interact well with the abutment elements 59, it has means 63 for reducing vibration, which accordingly are arranged on the outside 42 of the endless circulating carrier element 27 facing the reed bar elements 11, ie also off-center.

Thus, the means 63 for vibration reduction are located laterally next to a holding device (not additionally numbered) for holding the weft transport parts 15, 16 or 17, ie in this case laterally of the permanent magnet 32nd The endlessly circulating carrier element 27 is designed as a flat belt (not additionally numbered) as shown in FIG. 2, while the endlessly circulating carrier element 27 shown in FIG. 3 is designed as a slightly higher belt (not additionally numbered).

In the case of the slightly higher-built belt (FIG. 3), there is the advantage that means 63 for vibration reduction can be spring-biased, for example by means of a mechanical spring 64, which in turn can be integrated in the endlessly circulating carrier element 27, as shown in FIG , As a result, a thickness compensation device is at the same time realized in terms of a reduction in thickness by a material abrasion on the endless peripheral support member 27.

While the means 63 for vibration reduction according to FIG. 2 comprise roller elements 66, the means 63 for vibration reduction, shown schematically in FIG. 3, are realized as sliding block elements 67.

According to the representations of FIGS. 4 to 6, different pre-acceleration means 70, 71 and 72 for pre-accelerating weft threads 7 or 8 (see, for example, only FIGS. 12 to 15) are shown. By means of a correspondingly designed pre-acceleration, the weft thread 7 or 8 can be pre-accelerated with lower forces, and then further accelerated by the weft transport part 15, 16 or 17 than conventionally or with the same length of movement 43 to a higher final speed.

The Vorbeschleunigungseinrichtung 70 shown in Figure 4 is characterized by a plurality of mutually corresponding rotation elements 75, which structurally very simple together a Vorbeschleunigungsgasse 76 configured along which the weft yarn 7 can be pre-accelerated.

The pre-acceleration device 71 shown in FIG. 5 is characterized by a weft thread clamp 80 rotating with the deflection pulley 25 for deflecting the endlessly circulating support element 27, this weft thread clamp 80 being arranged translationally displaceable on this deflection pulley 25 along a groove 81 or the like. By superposition of the rotational movement of the deflection plate 25th and the translational movement of the weft thread clamp 80 creates a spiral acceleration curve 82, whereby a weft yarn 7 or 8 with the weft thread clamp 80 can be successively pre-accelerated.

The pre-acceleration device 72 shown in FIG. 6 is further characterized in that at least one of the rotation elements 75 comprises the deflection plate 25 for deflecting the endlessly circulating carrier element 27, whereby the structure of this pre-acceleration device 72 can be kept very simple. Again, a Vorbeschleunigungsgasse 76 is configured.

It should be understood that the pre-acceleration means 70, 71 and 72 also include means (not explicitly shown) for engaging a weft yarn 7 or 8, means (not explicitly shown) for carrying the weft yarn 7 or 8 and means (not explicitly shown) for the purpose of FIG Transferring the pre-accelerated weft thread 7 or 8 to the weft transport part 15, 16 or 17, which may be configured differently with respect to the various pre-acceleration means 70, 71 and 72.

Preferably, all Vorbeschleunigungseinrichtungen 70, 71 and 72 are at least partially disposed within the limited by the endless circulating support member 27 region 83, whereby the respective Vorbeschleunigungseinrichtung 70, 71 and 72 can be integrated very space-saving in the loom 1.

FIGS. 7 to 11 in particular illustrate different weft thread clamping devices 85, 86 and 87 in use of an edge thread clamping device, each of these weft thread clamping devices 85, 86 and 87 being arranged stationary, that is to say permanently, in the region of the outgoing side 22 with respect to the reed device 10 , In other words, this means that the weft thread clamping devices 85, 86 and 87 do not rotate with one of the weft transport parts 15, 16 or 17.

By means of these weft thread clamping devices 85, 86 and 87, it is possible to grasp or clamp the weft thread 7 or 8 transported or moved with the weft thread transport part 15, 16 or 17, while or after the weft thread transport part 15, 16 or 17 the reed device 10 on the outlet side leaves. By clamping the weft thread 7 or 8 by means of the weft thread clamping devices 85, 86 and 87 of the weft thread 7 and 8 is tensioned, whereby the movement of the weft thread 7 or 8 braked and stopped completely. This ultimately has the consequence that the weft thread 7 or 8 is separated from the respective weft transport part 15, 16 or 17.

The weft transport part 15, 16 or 17, however, moves unhindered by means of the endlessly circulating carrier element 27 in the direction of the incoming side 20 of the reed device 10.

The weft thread clamping devices 85, 86 and 87 could be driven approximately by mechanical coupling with the main drive (not shown) of the weaving machine 1.

In the case of the present weaving machine 1, however, electromagnetically operating weft thread clamping devices 85, 86 and 87 are used.

For example, the electromagnetic weft clamping device 85 shown in more detail in FIGS. 7 and 8 is supplied with electrical power by a 24 volt power supply (not shown), the principle of the present electromagnetic weft clamping devices 85, 86 and 87 exemplified by the electromagnetic weft clamping device 85 is, which is shown in Figures 7 and 8 at two different times.

As shown in FIG. 7, the electromagnetic weft yarn clamping device 85 is shown at the switch-on time and by way of example in the context of the weft transport part 15, which pulls the weft thread 7 in the direction of movement 18.

The electromagnetic weft thread clamping device 85 essentially consists of a magnetic coil 88, an armature 89 arranged therein and a punch 90 fastened to this armature 89, which can be moved in the transverse direction 91 with respect to the direction of movement 18 against a stop 92.

At the time of the meeting of the punch 90 and the stop 92 of the weft yarn 7 is held by frictional forces and released from the weft transport member 15. By not further discussed components for adjusting a Schussfadenzugkxaft on the incoming side 20 of the reed device 10 of the weft 7 remains under tension and is then stretched in the shed 12 before.

To brake the weft thread 7 a braking force F _brake must be applied. This is substantially equal to the advancing force F _Vo _rschub> ^a l ^so for example,

Fßrems ^- F Feed ^- 2.1 N. The required holding force F _Ha i _te of the punch 90 is given by the law of Coulomb friction of the braking force F _brake and friction coefficient _μ 5ΐ6ηιρβ _| of the stamp material.

The material of the punch 90 is preferably a soft elastomer. But he can also have other material components. The friction coefficient of the elastomer can be _adjusted to u- _{Stempe |} 0.7 are estimated when the punch 90 meets an elastomeric stop.

The following formula results in a holding force FHaite of 3 N.

Fßrems = tempd ^'F hold => ^F hold ⁼ ^^ ⁼ Ί ^ ^{= 3 N}

7 = · Ϊ7 <^ F _ ^F Brake _ 2,1 N

"Brake stamp ^holding ^ hold Q y

^ Stamp 'The required spring force F _spring can be calculated by means of the force balance shown in FIG. 9 during the retraction of the punch 90.

The spring force must compensate for the inertial force F _inertia .

The inertial force F _inertia is composed of the acceleration a _{stroke of} the punch 90 and the total moving mass m _{total of} the punch 90 (including spring mass and supporting elements).

The acceleration a _stroke can be calculated with the following balance equation. Herein, the stroke _{stroke of} the punch 90 is considered. This is 10 mm, preferably as the width of the guide track 21 on the reed device 10. For the time that is available for the return of the punch 90, the transport time T _{transport of} the weft _{transport member} 15 can be assumed.

It follows:

Shub ^_"2 ^{~ ~ 2U} ^'81 _s 2

With the determined acceleration a _stroke and the mass m _total , the required spring force F _spring can be calculated. For m _total , for example, a value of 20 grams can be assumed.

This results in: m

Fpeder = ^F _bearing ^{= m} total ^" a _Hu b = 0.02 kg · 20.81 ^ = 0.42 N

Further, with the following balance of force equation while holding the weft yarn 7, the required force F _So _ienoid can be calculated, namely with

Fsolenoid = F _Ha lte + F _Fede r = 3 N + 0.42 N = 3.42 N.

The holding force F _{Ha | te of} an electromagnetic weft thread clamping device 85, 86, 87 can preferably also be transferred to the weft thread 7 by means of a pushing magnet 95 (see FIGS. 10 and 11). Such thrust magnets 95 are also referred to as solenoids (not explicitly numbered).

In the first alternative electromagnetic weft thread clamping devices 86 shown in FIG. 10, a type of clamping element 98 is used for clamping the weft thread 7, which comprises a 99 and an upper clamping arm 101 pivotable about a pivot axis 100. The pivotable upper clamp arm 101 is driven by an above-mentioned thrust magnet 95. Characteristic of related commercial solenoids is that they can be extended electrically only in one direction. In this respect, a mechanical component in the form of a spring element 102 is required for the return of its punch 90. To limit the path when retracting the punch 90, a rear stop 103 is still provided. This rearward stop 103 is preferably a cuboid made of polyurethane.

As shown in FIG. 11, the further electromagnetic weft thread clamping device 87 is shown, in which the punch 90 is guided by means of two guide rods 104 (numbered only as an example). These two guide rods 104 are each spring-biased by means of a spring element 102 (numbered only by way of example), so that the stamp 90 can be pushed back again when the solenoid 95 implemented as a solenoid is deactivated. Again, a rear stop 103 is present again to limit the path of the punch 90 when returning. The exemplary embodiment shown in FIG. 11 relates to a first preferred embodiment of a further weft transport part 110 in the form of a projectile part, which can be used on the present weaving machine 1. Except for an additional weft depot 1 1 1 this further weft transport part 1 10 has the same structural design as the other weft transport parts 15, 16 and 17, wherein the structure is explained so far on the basis of the further weft transport member 1 10.

The further weft transport part 1 10 has in its lower region a sliding surface 1 12, which at its front in the direction of movement 18 end 1 13 has a run-on slope 1 14.

At the rear in the direction of movement 18 end of the sliding surface 1 12, a thread holder 115 is provided. The thread holder 115 has a forwardly opened in the direction of movement 18 slot 116 with a decreasing slot area, in which transverse to the direction of movement 18, a weft thread 7 can be inserted through a yarn feeder not shown here.

As a result of the movement of the weft transport part 110, a weft thread 7 supplied in this way automatically enters the decreasing slot area and is securely held. In the direction of movement 18 in front of the thread holder 1 15 at least one permanent magnet 117 is arranged, which ensures the magnetic attractive coupling to the permanent magnet 32 of the endlessly circulating support member 27. Instead of the permanent magnet 117, a magnetizable body can also be used, as already explained with regard to the other weft transport parts 15, 16 and 17.

The run-on slope 114 ensures, in particular, that the weft transport part 1 10 slides over the individual spaced-apart horizontal sections 23 of the Rietstabelemente 11 safely on its way through the sheds 12. By a corresponding length of the sliding surface 112, which preferably corresponds to at least four times the distance between two adjacent Rietstabelemente 11, it is further ensured that the movement of the weft transport member 110 in the region of the reed 10 is such that there jumping of the weft transport member 110 is avoided. In the fabric structures 2, 3 and 4 shown by way of example in FIGS. 13 to 15, two edge regions 120 and 121 are produced with only one single weft thread 7.

For this purpose, the weft transport member 15, 16, 17 or 110 was reversed with the same weft thread 7 several times within the sheds 12 with respect to its direction of movement 18, so as to form the two edge regions 120 and 121 during the actual weaving process.

It can easily be seen from the meandering course of the weft thread 7 within the fabric structures 2, 3 and 4 that the respective weft thread transport part 15, 16, 17 or 110 has been moved alternately in the sheds 12.

Furthermore, it is easy to see that the respective weft transport part 15, 16, 17 or 110 has been moved with different amplitudes in the sheds 12, so that almost any edge course with respect to the edge regions 120 and 121 can be produced with only a single weft thread 7.

As shown in FIG. 16, a fabric structure 5 is shown by way of example, in which the edge regions 120 and 121 are produced with two weft threads 7 and 8. On the basis of the four embodiments shown is already easy and clear to recognize that already with a single weft thread 7 or 8 advantageously almost arbitrarily configured edge portions 120, 121, etc. can be generated by the loom 1 is operated alternately with respect to their endlessly circulating support member 27.

For each fabric structure 2, 3, 4 and 5, it can be clearly seen that the weft yarn 7, 8 forming the edge regions 120, 121 extends in the longitudinal direction 122 of the warp yarns 6 in a plurality of superimposed layers 123, 124 etc. in the fabric structure 2, 3, 4 and 5 is arranged.

The layers 123, 124 and thus also various weft thread sections of the respective weft thread 7 or 8 are spaced apart by a distance 125 (numbered only by way of example). The weft thread 7 or 8 is embedded in the fabric structure 2, 3, 4 and 5 such that the weft thread 7 or 8 extends in the longitudinal extent 122 of the warp threads 6 and the weft thread 7 or 8 in this case warp threads 6 several times at an angle, especially at a right angle, contact-related crosses.

[175] Thus, the weft thread 7 or 8 extends in the fabric structure 2, 3, 4 or 5 transversely to the warp threads 6 in a first direction 18, then it is deflected behind one of the warp threads 6 in the direction of the longitudinal extent 122 of the warp threads 6, in order then to run back in a direction opposite to the first direction 18 (not separately numbered), and it is then deflected again at a further one of the warp threads 6 in the direction of the longitudinal extension 122 of the warp threads 6 again. This can be repeated as often and in a great variety of variants, so that by means of the weft thread 7 or 8 the at least one edge region 120 and / or 121 is formed.

It should be explicitly pointed out at this point that the features of the solutions described above or in the claims and / or figures can optionally also be combined in order to be able to implement or achieve the explained features, effects and advantages in a cumulative manner.

It goes without saying that the exemplary embodiments explained above are only first embodiments. In this respect, the embodiment of the invention is not limited to these embodiments. All disclosed in the application documents features are claimed as erfindungswe considerably, provided they are new individually or in combination over the prior Tech technology.

List of reference numbers:

1 weaving machine

2 first tissue structure

3 second fabric structure

4 third tissue structure

5 fourth tissue structure

6 warp threads

7 first weft

8 more weft

10 reed device

11 Rietstabelemente

12 sheds

15 first weft transport part

16 second weft transport part

17 third weft transport part

18 direction of movement

19 longitudinal extension

20 incoming page

21 guideway

22 expiring page

23 horizontal section

25 front deflector

26 rear deflecting plate

27 endlessly circulating carrier element

28 rotation axes

29 fictional connection line

30 upper half

31 lower half

32 permanent magnets

34 transfer element

35 transfer railway common horizontal plane

upper vertex

support surface

outside

upper movement distance

lower movement distance

gap

curved outer contours

upper imaginary line

lower imaginary line

lower vertices

guide rollers

Height difference

facing side

equipment installation

conditioning elements

sheet metal body

Means for vibration reduction

mechanical spring

roller elements

Gleitsteinelemente

first pre-acceleration device

second pre-acceleration device

further pre-acceleration device

rotation elements

Vorbeschleunigungsgasse

Weft thread clamp

groove

spiral acceleration curve

Area

first electromagnetically operating weft thread clamping device second electromagnetically operating weft thread clamping device further electromagnetically operating weft thread clamping device solenoid

anchor

stamp

transversely

attack

thrust magnets

clip element

fixed lower clamping arm

swivel axis

swiveling upper clamping arm

spring element

backward stop

guide rods

Weft transport section

Weft Depot

sliding surface

front end

starting slope

thread holder

slot

permanent magnet

first edge region second edge region

longitudinal direction

location

more location

distances

Claims

claims:

1. loom (1) for producing a fabric structure (2, 3, 4, 5) of warp and weft threads (6, 7, 8) comprising a reed device (10) with a plurality of Rietstabelementen (1 1) for generating sheds (12) between divergent warp threads (6), comprising at least one weft transport part (15, 16, 17) for guiding the weft thread (7, 8) within the generated sheds (12) along a guideway (21) formed by the reed bar elements (11) ), comprising an endlessly circulating carrier element (27) deflected around two spaced-apart deflection pulleys (25, 26) for carrying the at least one weft transport part (15, 16, 17) and comprising the guide track (21) configured by the reed bar elements (11) ) an at least incoming transfer element (34) for transferring the at least one weft transport part (15, 16, 17) between the endlessly circulating support element (27) and by the Rietstabelemente ( 1 1) configured guide track (21), wherein the transfer elements (34) each have a transfer track (35), and wherein the transfer tracks (35) and the Rietstabelemente (11) ausgestalte guideway (21) in the direction of movement (18) of the weft transport member (1, 16, 17) are arranged one behind the other, characterized in that the endlessly circulating carrier element (27) on the Rieteinrichtungsseite (30) in such a radially further inside a space (48) between the two deflecting discs (25, 26) is deflected in that, at least on the inlet side (20) of the reed device (10), the transfer track (35) slopes at a slight angle of inclination of less than 5 ° with respect to the guideway (21) formed by the reed bar elements (11) and entirely without a ramp-like rise is designed.

2. loom (1) according to claim 1, characterized in that each area at least the incoming transfer web arranged (35) with respect to the Rietstabelemente (11) ausgestalte guideway (21) with an inclination angle of less than 5 ° or preferably from 0 ° is arranged.

3. weaving machine (1) according to claim 1 or 2, characterized in that a height difference (55) between the transfer track (35) and by the Rietstabelemente (11) configured guideway (21) is less than 10 mm, preferably less than 5 mm.

4. weaving machine (1) according to one of claims 1 to 3, characterized in that a height difference (55) between a through the endless peripheral support member (27) designed carrier surface (41) and the transfer path (35) in front of the transfer path (35) less than 10 mm, preferably less than 5 mm.

5. weaving machine (1) according to one of claims 1 to 4, characterized in that the reed means (10) on the said endlessly circulating support member (27) side facing a bearing device (58) to interact with this endlessly circulating support member (27) wherein abutment elements (59) of this abutment device (58) are arranged on Rietstabelementen (11) of the reed device (10).

6. loom (1) according to claim 5, characterized in that the contact elements (59) of Rietstabelementen (11) are physically configured.

7. weaving machine (1) according to claim 5 or 6, characterized in that the abutment elements (59) on a substantially parallel to the endless circulating support member (27) extending portion (23) of Rietstabelementen (1 1) are arranged.

8. weaving machine (1) according to one of claims 1 to 7, characterized in that the endless encircling support member (27) comprises means (63) for vibration reduction, which on the Rietstabelementen (1 1) facing the outside (42) of the endlessly circulating Support element (27) are arranged and interact with Rietstabelementen (11) arranged contact elements (59).

9. weaving machine (1) according to claim 8, characterized in that the means (63) for vibration reduction Gleitsteinelemente (67) and / or roller elements (66), by means of which they along complementarily configured abutment elements (59) on the reed device (10) can slide and / or roll.

10. Weaving machine (1) according to claim 8 or 9, characterized in that the means (63) for vibration reduction are spring-biased, and in particular spring-biased against complementary to the reed device (10) configured conditioning elements (59) press.

1 1. weaving machine (1) according to one of claims 8 to 10, characterized in that the means (63) for vibration reduction laterally next to a holding device (32) for holding a weft transport member (15, 16, 17) are arranged.

12. weaving machine (1) according to one of claims 1 to 1 1, characterized by a Vorbeschleunigungseinrichtung (70, 71, 72) for pre-accelerating a weft thread (7, 8), by means of which in a by the reed (10) generated shed ( 12) to be introduced before the weft thread (7, 8) of the weft transport member (15, 16, 17) is then further accelerated.

A loom (1) according to claim 12, characterized in that the pre-acceleration means (70, 72) comprises a plurality of mutually corresponding rotation elements (75) forming a pre-acceleration lane (76) along which the weft yarn (7, 8) can be pre-accelerated is.

14. Weaving machine (1) according to claim 13, characterized in that at least one rotation element (75) of the pre-acceleration device (72) comprises a deflecting plate (25) for deflecting the endlessly circulating carrier element (27).

15. weaving machine (1) according to one of claims 12 to 14, characterized in that the Vorbeschleunigungseinrichtung (71) comprises a with a deflection plate (25) for deflecting the endless encircling support member (27) rotating weft thread clamp (80), wherein the weft thread clamp ( 80) is arranged translationally displaceable on this deflecting plate (25).

16. loom (1) according to any one of claims 12 to 15, characterized in that the Vorbeschleunigungseinrichtung (70, 71, 72) means for detecting a weft thread (7, 8), means for taking along the weft thread (7, 8) and means for transferring the pre-accelerated weft thread (7, 8) to the weft transport part (15, 16, 17).

17 weaving machine (1) according to one of claims 12 to 16, characterized in that the Vorbeschleunigungseinrichtung (70, 71, 72) at least partially within the by the endless circulating support member (27) bounded region (83) is arranged.

18. weaving machine (1) according to one of claims 1 to 17, characterized by a weft thread clamping device (85, 86, 87) for clamping the weft thread (7, 8) in an edge region of warp threads (6) which permanently on the output side of the reed device (10 ) is arranged in order to be able to clamp the weft thread (7, 8) independently of the weft transport part (15, 16, 17).

19. Weaving machine (1) according to claim 18, characterized in that the weft thread clamping device (85, 86, 87) has an electromagnetic actuating drive.

A weaving machine (1) according to any one of claims 1 to 19, characterized in that the weft transport member (15, 16, 17, 110) comprises a weft depot (11 1) for carrying out a simple operation within a shed (12) or multiple changes of direction of the direction of movement (18) of the weft transport part (15, 16, 17, 1 10) carry sufficient weft thread material.

21. A method for operating a weaving machine (1), in particular for edge formation on a fabric structure (2, 3, 4, 5) of warp and weft threads (6, 7, 8) produced by means of the weaving machine (1), in which by means of a Rieteinrichtung (10) of the loom (1) with respect to warp threads (6) at least one shed (12) is produced, wherein a weft thread (6) by means of a weft transport member (15, 16, 17, 1 10) with a direction of movement (18) in the at least one shed (12) is introduced, characterized in that the weft transport part (15, 16, 17; 110) with the same weft thread (7, 8) at least once undergoes a reversal of movement within the at least one shed (12) during the actual web operation one or more edges (120, 121) with respect to the fabric structure (2, 3, 4, 5) form.

22. The method according to claim 21, characterized in that the weft thread (7, 8) at least once undergoes a change in direction of movement within the at least one shed (12), without this weft thread (7, 8) leaves this shed (12).

A method according to claim 21 or 22, characterized in that the weft transport member (15, 16, 17; 110) is alternately moved within the at least one shed (12).

24. The method according to any one of claims 21 to 23, characterized in that the weft transport member (15, 16, 17, 110) with different amplitudes alternately within the at least one shed (12) is moved.

25. Method according to claim 21, characterized in that the weft thread transport part (15, 16, 17; 1 10) holds further weft thread material for at least one movement direction change, so that the same weft thread (7, 8) is interrupted several times without interruption at least one shed (12) can be deflected.

26. fabric structure (2, 3, 4, 5) of warp and weft threads (6, 7, 8) with at least one edge region (120, 121), characterized in that one or two edge regions (120, 121) of the fabric structure ( 2, 3, 4, 5) are produced with only a single weft thread (7) or with two weft threads (7, 8).

27. fabric structure (2, 3, 4, 5) according to claim 26, characterized in that the edge region (120, 121) forming weft thread (7, 8) without interruption in the direction of the longitudinal extent (122) of the warp threads (6) meandering in the fabric structure (2, 3, 4, 5) is arranged.

28. fabric structure (2, 3, 4, 5) according to claim 26 or 27, characterized in that the edge region (120, 121) forming weft thread (7, 8) in the direction of the longitudinal extent (122) of the warp threads (6) in a plurality of superimposed layers (123, 124) in the fabric structure (2, 3, 4, 5) is arranged.

29. fabric structure (2, 3, 4, 5) according to claim 28, characterized in that the plurality of superposed layers (123, 124) are spaced from each other.

30. fabric structure (2, 3, 4, 5) according to any one of claims 26 to 29, characterized in that the weft thread (7, 8) extends in the longitudinal extent (122) of the warp threads (6) and the weft thread (7, 8 ) Here, warp threads (6) several times at an angle, in particular at a right angle, crosses.

31. fabric structure (2, 3, 4, 5) according to any one of claims 26 to 30, characterized in that the weft thread (7, 8) in the fabric structure (2, 3, 4, 5) transversely to the warp threads (6) in a first direction (18), then behind one of the warp threads (6) in the direction the longitudinal extent (122) of the warp threads (6) is deflected, then runs back in one of the first direction (18) opposite opposite direction, and then on another of the warp threads (6) again in the direction of the longitudinal extent (122) of the warp threads ( 6) is deflected, etc., so that by means of the weft thread (7, 8) of the at least one edge region (120, 121) is formed.