EP2580379B1 - Loom for producing woven fabrics with an incorporated fancy thread - Google Patents

Description

Technical area

The invention relates to a loom for the production of woven fabric with an incorporated laying thread.

State of the art

A weaving machine of the type mentioned is from the CH 490 541 known. There fastening threads are arranged by means of feeding needles during the weaving of a band. There are no indications as to how the needle loom could advantageously perform the weaving in of a conductor thread, in particular of an antenna thread. A similar technology became independent in the US 3,796,234 disclosed.

From the WO 2007/071077 A1 It is known to incorporate a conductor thread in a variety of ways by the supply needle is arranged on a transversely oriented to the warp shaft, which is connected to a first drive device for performing a pivoting movement of the shaft and further with a second drive device for moving in the axial direction. The engraver dives by pivoting in the shed on and off. This allows the engraver to be moved across the width of the tape.

From the JP 2005/015954 A is a weaving machine for weaving an effect thread known, which can be incorporated into the ground fabric or rests on the ground fabric. The loom of the JP 2005/015954 A is equipped with a warp shed forming apparatus which allows individual warp yarns to be selected. The effect thread is a selected, additional warp thread. Both the effect thread and additional warp threads are guided within the shed. This has the consequence that the effect threads of the warp, which is supplied from above the additional warp threads and the selected effect thread, are tied off from these warp threads during a transverse movement of the effect threads. This means that the effect threads are not above the Basic tissues are attached, but become part of the basic tissue and thus change the structure.

Presentation of the invention

The object of the invention is to provide a loom which is suitable for the production of woven fabric with a trained-in laying thread. The machine should be suitable for applying a load on a Webgut, without significantly changing the Webgut.

The object is achieved by the machine according to claim 1 in the loom mentioned above. The measures of the invention initially have the result that a laying thread can also be tied off in a transverse movement of the lining yarn guide - in the weft direction. Furthermore - and this is particularly advantageous - by the distribution of the movements, namely the tying and the shot - on two movements no ligation on the fabric side of the tape fabric visible. Here is the machine - in contrast to the weaving machine JP 2005/015954 A - able to apply a laying thread without noticeably altering the weaving material. Due to the fact that the weaving machine, in addition to and independent of the laying device for the at least one laying thread, has a warp laying device with a multiplicity of side-by-side warp laying elements for laying additional warp threads, the disadvantage of JP 2005/015954 A avoided that the filaments become part of the basic tissue and thus change the structure.

It is also very advantageous that the laying yarn can be moved and laid in any laying position between the warp-laying members on the tape fabric.

Advantageous embodiments of the loom are described in the dependent claims.

It is advantageous if the Kettlegevorrichtung has transverse movement means by means of which it is movable transversely to the warp threads when it is not immersed in the shed.

According to an advantageous embodiment of the present invention, the laying device has at least one further laying yarn guide, which is arranged in the warp direction behind said laying yarn guide and is movable transversely to the warp direction.

According to a further embodiment of the present invention, the device has at least one retaining hook which can hold the laying thread when the reed is bruised. In this case, the retaining hook is guided so that it is movable away from the tape fabric in an initial position after the laying of the load.

The abovementioned embodiments initially relate to ribbon looms. On wider weaving machines, the inventive technique can advantageously be used in that several Kettlegevorrichtungen are arranged parallel to the selvedge side by side at a defined distance. Preferably, the Kettlegevorrichtungen are driven coupled. For certain applications, it may also be advantageous if individual drives are provided, so that the Kettlegevorrichtungen are driven individually and independently controlled.

The above-mentioned, as well as the claimed and described in the following embodiments, according to the invention to be used elements are subject to their size, shape design, material use and their technical conception no special conditions of exception, so that the well-known in the respective field of application selection criteria can apply without restriction.

Brief description of the drawings

Figur 1

eine Webmaschine gemäss eines ersten Ausführungsbeispiels der vorliegenden Erfindung, als schematische Darstellung zur Erläuterung der Grundbewegung;

Figur 2

die Webmaschine nach Figur 1, als schematische Darstellung zur Erläuterung der Legebewegung des Legefadenführers;

Figur 3

eine Webmaschine gemäss eines zweiten Ausführungsbeispiels der vorliegenden Erfindung mit mehreren Legefadenführern, als schematische Darstellung;

Figur 4

eine Webmaschine gemäss eines dritten Ausführungsbeispiels der vorliegenden Erfindung mit einem Rückhaltehaken, als schematische Darstellung;

Figur 5

eine Webmaschine gemäss eines Ausführungsbeispiels mit drei nebeneinander liegenden, parallel arbeitenden Kettlegevorrichtungen.

Embodiments of the weaving machine are described in more detail below with reference to the drawings, in which:

FIG. 1

a loom according to a first embodiment of the present invention, as a schematic representation for explaining the basic movement;

FIG. 2

the loom behind FIG. 1 , as a schematic representation for explaining the laying movement of Lepfladenführers;

FIG. 3

a weaving machine according to a second embodiment of the present invention with several Leverkadenführern, as a schematic representation;

FIG. 4

a loom according to a third embodiment of the present invention with a retaining hook, as a schematic representation;

FIG. 5

a loom according to an embodiment with three side by side, parallel Kettlegevorrichtungen.

Ways to carry out the invention

The FIG. 1 shows a loom according to a first embodiment of the present invention, as a schematic representation for explaining the basic movement. The warp threads 2 for producing a tape fabric 10 form for entry of a weft thread by means of a weft insertion needle 7 or a gripper - in a rapier - a top compartment 5 and a lower compartment 4. A reed 1 is arranged in a conventional manner to the registered weft threads to the already created Webgut 10 to strike.

The Kettlegevorrichtung 9 dives through the upper compartment 5 in the lower compartment 4 a. At the same time, the reed 1 moves backwards. The Kettlegevorrichtung 9 can be moved in the direction of reed 1 as well as down in the lower compartment 4 become. The Kettlegevorrichtung 9 follows in the illustrated embodiment of the movement of the reed 1. The Kettlegevorrichtung can also be switched off or can be submerged as often as required depending on the binding.

The shot of the weft insertion needle or the gripper 7 crosses the additional warp threads 8, if the Kettlegeglieder are in the lower compartment. The shot of the weft insertion needle 7 or the gripper is tied off in the illustrated embodiment by means of an auxiliary thread. The Kettlegevorrichtung 9 emerges the Kettlegeglieder from the lower compartment 4 and the upper compartment 5 and moves with the reed 1 in the starting position 11. Thereafter, the additional warp threads 8 - in the illustrated embodiment, fixing threads - struck by the reed 1. The warp must be laid out so that it is never tied to the shots.

In FIG. 2 the additional laying is explained by means of a laying thread guide. The Legefadenführer 13 for the laying yarn 12 can be brought by a transverse movement in each laying position between the Kettlegegliedern 14. This is followed by the basic movement described above FIG. 1 , The laying thread 12 may be an effect thread, eg wires, bead cords, elastic threads, etc., or else a functional thread, eg an LED thread, conductive thread, etc.

When the warp-laying device 9 is in the home position 11, the laying yarn guide 13 can be moved between the warp-setting members 14 to the new laying position, e.g. by means of a linear motor, a cam gear, etc. This can - depending on the desired effect and function - be done periodically or according to a freely defined pattern.

With the additional chain, so the fastening threads 8, the laying thread 12, especially in the weft direction, tied to the tape fabric 10. The further chain 8 - in the described embodiment Befestigungsfäden- may alternatively or as an additional effect, a chain of effect threads.

The warp-laying apparatus 9 can also be displaced in the transverse movement by one or more warp-setting members 14 in order to lay and bind a laying yarn 12 in the warp direction of the band fabric 10. This allows new patterns and effects. The Kettlegeglieder 14 are arranged in a fixed, in the present embodiment the same distance next to each other.

According to a further embodiment of the present invention, which in FIG. 3 is shown, several Legefadenführer can be lined up in a row.

Each Legefadenführer 13, 16 is operated by a separate drive and can be moved independently in the transverse direction.
On this loom, the Legefäden 12 and 15 can be crossed and it can be achieved as new effects.

A further embodiment of the invention is in FIG. 4 shown. In this embodiment, a retaining hook is used.

The retaining hook 17 holds the laying thread in order to reduce the load on the additional warp thread 8 - in the exemplary embodiment of a fastening thread. The movement of the retention hook can be done via rotation as well as a linear movement. It can be used on a weave in the retaining hook two or more members 18. Once the laying yarn 12 has been laid, the retaining hook 17 again moves away from the tape fabric 10 to its original position or remains in position until the laying yarn 12 has set.

In FIG. 5 a weaving machine according to an embodiment using three adjacent, parallel Kettlegevorrichtungen 9 is shown. The Kettlegevorrichtungen correspond to those in the embodiments described above and are for clarity in FIG FIG. 5 not shown again. On such a wider weaving machine, the inventive technique is advantageously used in that several Kettlegevorrichtungen 9 - in the illustrated embodiment just three - are arranged side by side parallel to the selvedge at a defined distance. In the illustrated embodiment, it is indicated here, several bands are made in parallel next to each other. If the belts are similar, solely to increase the rate of production, the warp knitting devices 9 are driven coupled thereto. For certain applications, for example, if differently configured bands next to each other or if different applications are to be produced on a wide web 10, but it may also be advantageous if individual drives are provided so that the Kettlegevorrichtungen 9 are driven individually and independently controlled.

LIST OF REFERENCE NUMBERS

1

reed

2

Warp threads of a tape fabric

3

shed

4

lower shed

5

upper shed

6

Setting or crochet hook

7

Weft insertion needle or weft insertion gripper

8th

Additional warp threads as fastening threads or as effect threads

9

Kettle feed mechanism

10

ligament tissue

11

Starting position of Kettlegevorrichtung

12

cover thread

13

Cover thread guide

14

Kettlegeglieder

15

second laying thread

16

second threading guide

17

Retention hook

18

Limbs of the retention hook

Claims (9)

1. A weaving loom for producing a woven material (10) with an incorporated cover thread, comprising

   - a shed forming device for forming a shed (3) from warp threads (2) with at least an upper shed (5) and a lower shed (4),

   - a weft-insertion device (7) for inserting weft-threads,

   - a reed (1) for stopping of inserted weft-threads,

   - a laying device for at least one cover thread (12),

   characterized in that

   the loom further comprises a warp-laying device (9) with a plurality of warp-laying elements (14) arranged adjacent to each other for laying additional warp threads (8),

   wherein the warp-laying device (9) comprises a driving device for dipping in the warp-laying elements (14) for the additional warp threads (8) from a starting position through the upper shed (5) to the lower shed (4) or through the lower shed to the upper shed, and wherein the warp-laying device is positioned so that the weft-insertion device (7) crosses the additional warp threads (8), and wherein the laying device comprises at least one cover thread guide (13) which, in the starting position (11) of the warp-laying device (9), is movable transversely to the warp threads (2) by means of a transverse moving means.
2. The weaving loom according to claim 1, characterized in that the cover thread guide (13) is movable in each position of the shed by means of the transverse moving means.
3. The weaving loom according to claim 1 or 2, characterized in that the warp-laying elements (14) of the warp-laying device (9) are arranged adjacent to each other at a fixed, preferably equal distance.
4. The weaving loom according to one of claims 1 to 3, characterized in that the warp-laying device (9) further comprises transverse moving means by means of which the warp-laying elements (14) are movable transversely to the warp threads (2) when they are not dipped into the shed (3).
5. The weaving loom according to one of claims 1 to 4, characterized in that the laying device comprises at least one further cover thread guide (16) that is arranged - in respect of the direction of the warp thread (2) - behind said cover thread guide (13) and is movable transversely to the direction of the warp thread (2).
6. The weaving loom according to one of the claims 1 to 5, characterized by at least one movable retaining hook (17) for holding the cover thread (12) in order to reduce the load of the additional warp thread (8), wherein the retaining hook (17) after laying of the cover thread (12) is movable away from the ribbon fabric (10) to a starting position.
7. The weaving loom according to one of the claims 1 to 6, characterized in that several warp-laying devices (9) are arranged parallel to the selvage and adjacent to each other at a defined distance.
8. The weaving loom according to claim 7, characterized in that the warp-laying devices (9) are driven in a coupled manner.
9. The weaving loom according to claim 7, characterized in that individual drives are provided so that the warp-laying devices (9) are driven individually and independently of each other.

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