EP0812938B1 - Support for a thread clamp and feeding gripper for gripper loom with such support - Google Patents

Description

The invention relates to a support body for a Thread clamp and a gripper with one Supporting body.

Reference is made to FIGS. 1 and 2. The figure 1 shows a section of a known one Bring gripper head, the support body 1 and one Includes thread clamp 2. The support body has one Bottom part 5, a side wall 6 and on the reed side a side wall 7 on the fabric side. The reed side Wall forms a gripper tip 8. The tissue side Wall comprises a free-standing section 9 which runs parallel to the reed-side wall 6 and to it is determined, an incorrectly running one Deflect upper shed warp thread 10 upwards. This points section 10 one from the top of the bottom part outgoing and obliquely rising edge 11 on the the warp thread slides.

Problems arise with this formation of section 9 when warp yarns that tend to be used are used to cling to each other. If neighboring Warp threads 10, 10 'during the change of subject from in The threads can be moved in the upper or lower compartment stick together, so that the tip 12 in Is shifted towards the gripper track. It arises a smaller shed 13. Section 9 falls in this If the task does not occur within the shed deflect correctly running warp thread 10 and under Resolving the brackets to open the shed further. The parallel alignment of section 9 occurs on the sloping flank 11 increased frictional resistance so that the warp thread 10 is taken away from the hook head becomes. The result is that delicate yarns tear or to be damaged. Which is a disadvantage.

The invention has for its object a support body to create a thread clamp in which the mentioned disadvantage is eliminated.

The advantage that can be achieved with the invention is therein see that when the weft entry the separation of the top and Lower shed warp threads and in particular interlocking warp threads is improved.

Advantageous embodiments of the invention result from the dependent claims.

The invention is described below with reference to the enclosed Drawings explained.

Fig. 1

Einen die Greiferspitze bildenden Abschnittes eines bekannten Bringergreiferkopfes in räumlicher Darstellung;

Fig. 2

eine Ansicht des Tragkörpers in Richtung des Pfeiles A in Fig. 1 innerhalb eines Webfaches;

Fig. 3

einen die Greiferspitze bildenden Abschnittes einer Ausführungsform eines erfindungsgemässen Bringergreiferkopfes;

Fig. 4

eine Ansicht auf einen Abschnitt des Tragkörpers in Richtung des Pfeiles B in Fig. 3;

Fig. 5

eine Ansicht gemäss Fig. 4, welche eine zweite Ausführungsform eines erfindungsgemässen Tragkörpers darstellt und

Fig. 6

einen Schnitt entlang der Linie VI-VI in Fig. 5.

Show it:

Fig. 1

A portion of a known bringer gripper head forming the gripper tip in a spatial representation;

Fig. 2

a view of the support body in the direction of arrow A in Figure 1 within a shed.

Fig. 3

a portion forming the gripper tip of an embodiment of a bringer gripper head according to the invention;

Fig. 4

a view of a portion of the support body in the direction of arrow B in Fig. 3;

Fig. 5

4, which shows a second embodiment of a support body according to the invention and

Fig. 6

a section along the line VI-VI in Fig. 5th

Reference is made to FIGS. 3 and 4. In the 3 embodiment of a Bringer gripper head according to the invention contains one Support body 21 and a thread clamp 2 such as in Fig. 1 is shown. The support body 21 differs compared to that of FIG. 1 only by Design of the free-standing section 22. As from 3 and in particular from FIG. 4 section 22 is at an acute angle α arranged with respect to the wall on the reed side. The arrangement allows a longer edge 23 with a lower slope are formed so that the Deflection of the warp threads 10 or the frictional resistance is significantly improved or reduced.

Reference is made to FIGS. 5 and 6. At In this embodiment, the section 22 is against the Bottom part 21 inclined. This makes one against the Embodiment according to Figures 3 and 4 an improved and gentle guidance of the warp threads achieved.

The support body 21 is largely open at the top and has a bottom part 5 and two side walls 6, 7 to on the riet side and fabric side, high guides for the To form warp threads 10. The wall 7 includes a section 22 that is against the gripper tip runs obliquely. This is a gentle on the yarn Deflection from within the shed is not correct running warp threads reached.

Claims (6)

1. Carrier body for a thread clamp, which body (1, 21) is largely open in the upward direction and has a portion at one end which forms a gripper tip, with the body (1, 21) having a base part (5) and two side walls (6, 7) in order to form upper guides for the warp thread (10) at the reed side and at the cloth side respectively, characterised in that a section (22) of the side wall (7) at the cloth side extends at an inclination towards the gripper tip.
2. Body in accordance with claim 1 characterised in that the section (22) extends at an acute angle α with respect to the side wall (6) at the reed side.
3. Body in accordance with one of the claims 1 or 2 characterised in that the section (22) is inclined towards the base part (5).
4. Body in accordance with one of the claims 1 to 3 characterised in that the section (22) has an edge extending at an inclination towards the base part (5).
5. Bringer gripper for a rapier weaving machine, with a thread clamp and a carrier body in accordance with one of the claims 1 to 4.
6. Loom comprising a bringer gripper in accordance with claim 5, characterised in that the loom is a rapier weaving machine.

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