JPH0673642A - Woven-fabric-made rotor for seriesly positioned aperture-type loom - Google Patents

Abstract

PURPOSE: To provide the weaving rotor of a loom in which warp yarns are arranged in series and capable of using a standard type jet nozzle in finely weaving. CONSTITUTION: A jet nozzle 16 is arranged outside a reed row and the thickness and the like of the reed 13 and the jet nozzle 16 are not limited. As the distance between the jet hole 24 of the jet nozzle 16 and the shaft center of a rotor is larger than that between the lower opening 15 and the shaft center of the rotor, the jet hole 24 is kept at a position corresponding to the opening 20. Thus, the jet nozzle 16 obliquely blows compressed air into a warp yarn passage 6 without disturbing the insertion of weft yarns.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a woven rotor of a loom in which warp yarns are arranged in series.

[0002]

2. Description of the Related Art In a woven rotor disclosed in European Patent No. 0196349, a plurality of injection nozzles are provided as constituent elements of a reed row and a weft passage.

[0003]

However, the weaving of delicate fabrics and the like is performed with a large number of warp threads and a small warp pitch. In this case, it is necessary to use a high-performance injection nozzle having a small thickness and a small air supply passage cross-sectional area. Therefore, when weaving with a small warp pitch,
The high performance nozzle described above must be installed.

An object of the present invention is to provide a weaving rotor for a loom, in which warp yarns are arranged in series so that a standard type jet nozzle can be used even in delicate weaving.

[0005]

In order to achieve the above-mentioned object, the present invention comprises a reed row for arranging a plurality of openings each consisting of a lower opening and an upper opening in series. Is a weaving passage for weft insertion and a weaving rotor of an opening series arrangement type loom having a plurality of injection nozzles for assisting weft insertion along the passage. Is set to be larger than the separation distance between the lower opening and the rotation axis of the rotor, and the injection nozzle is fixed outside the reed row on the weft passage opening side of the woven rotor. In addition, the jet nozzle blows compressed air obliquely to the opening of the passage so that the weft passage in the jet area of the jet nozzle is not blocked in the jet area. The point is that you have removed To.

[0006]

With the above structure, the injection nozzles are arranged outside the reed row without providing a narrow portion on the reed or thinly forming the injection nozzles. Further, based on the positional relationship between the injection hole and the lower opening and the rotor shaft center, the injection hole of the injection nozzle is inclined at a position corresponding to the warp opening so that the compressed air is inclined so as not to interfere with the weft insertion in the weft passage. Spray on.

[0007]

EXAMPLE As shown in FIG. 2, when the reed row 19 rotates with the rotation of the woven rotor, the warp yarns are reciprocated by the yarn reeds 2 which move back and forth across the rotation direction 9 of the woven roller shown in FIG.
You are guided to 9. The reed row 19 is composed of a plurality of reeds 13, and each reed 13 includes a lower portion 5 adjacent to the adjacent reeds 13 with a gap and a horizontal needle-shaped upper portion 4.

[0008] A plurality of warp yarns 3 are attached to the upper part 4 and the lower part 5 of the thread reed 2.
The warp openings 20 are formed on the woven rotor by arranging them so that they are offset from each other. Same opening 20
Consists of an upper opening 14 and a lower opening 15 which are carded to the cloth edge 8 of the woven fabric 10 in the direction of rotation 9 of the rotor. The reed row 19 forms the weft passing groove 6 into which the weft is inserted when the rotor rotates. To improve the weft insertion operation, a plurality of injection nozzles (Stafettenduesen) 16 are provided along the weft passing groove 6 on the woven rotor. Compressed air is supplied to the injection nozzle 16 via a supply path 17.
As is apparent from FIGS. 1 and 2, the injection nozzle 16 has a reed row 1.
Since it is provided outside the reed 9, the narrow space (V
erengung) does not occur. When the reed 13 is formed thin or the injection nozzle 16 is provided in the reed row 19 in order to obtain a finely woven fabric, such a narrow portion is generated.

The head portion of the injection nozzle 16 enters the opening 20 because the distance between the injection hole 24 and the rotor axis is larger than the distance between the lower opening 15 and the head portion.
The jet air 18 is obliquely blown into the side opening of the weft passage groove 6. The blast air 18 spreads in a conical shape in the warp passing groove 6. In the conical region of the blast air 18, the lower end 7 of the weft passage groove 6 extends in a substantially straight line, and at the end 25 of the reed, the weft passage groove 6 is substantially orthogonal to the radial line 23 of the woven rotor 1.
Compressed air is supplied unimpeded in it.

At the lower end of the reed 13 existing outside the conical region of the air 18 jetted from the jet nozzle 16, the nose 12 extends to the end 25 of the reed, and the weft yarn 22 is woven to perform better beating. I will guide you to 10. FIG. 2 shows the nose 12 of the reed 13 located in front of the first injection nozzle 16 in the area of the conical injection air 21 from the main nozzle. In order to create a blind spot in front of each of the injection nozzles 16 so that at least one reed 13 with a nose 12 is inserted, the distance between the nozzles 16 takes into consideration the direction and the spread amount of the related conical injection air 18. It is set. It is desirable that each of the injection nozzles 16 pressed flatly in the rotation direction 9 of the woven rotor be held in line with the nose 12 located immediately in front of the nozzle so that the warp yarns 3 can be smoothly guided.

[0011]

As described above in detail, the present invention exerts an excellent effect that the standard type injection nozzle can be used even in delicate weaving.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing a woven rotor together with a reed and an injection nozzle.

FIG. 2 is an enlarged plan sectional view of a woven rotor showing a state in which compressed air is blown obliquely into a weft passageway from an injection nozzle.

[Explanation of symbols]

6 ... Weft passing passage, 14 ... Upper opening, 15 ... Lower opening, 16 ... Jet nozzle, 18 ... Compressed air, 19 ... Reed row,
20 ... Opening, 22 ... Weft, 24 ... Injection hole.

Claims (3)

[Claims] 1. A reed row (19) for arranging a plurality of openings (20) each comprising a lower opening (15) and an upper opening (14) in series, the reed row (19) comprising: A weft passage (6) for weft insertion of the weft (22) and a plurality of injection nozzles (1) for assisting the weft insertion along the passage (6).
In the woven rotor of an opening series arrangement type loom having 6), the separation distance between the injection hole (24) of the injection nozzle (16) and the rotation axis of the woven rotor is the lower opening (15) and the rotor. The injection nozzle (16) is set to be larger than the distance from the rotation axis, and the injection nozzle (16) is fixed to the outside of the reed row (19) on the opening side of the weft passage (6) on the woven rotor. The nozzle (16) blows the compressed air (18) obliquely to the opening of the passage (6), and the weft passage (6) in the jet area (18) of the jet nozzle (16).
Is removed so that the weft passageway (6) is not disturbed in the same injection area (18). 2. A reed row (19) outside the region (18) where air is injected from the injection nozzle (16) or / and where it enters the opening (20) in front of the first injection nozzle (16). 2. Each reed (13) of (1) comprises a lower part (7) covering the nose (12) of the weft passage (6).
2. A woven rotor for an opening serially arranged loom according to item 1. 3. Each injection nozzle (16) is aligned with the immediately preceding nose (12) in the direction of rotation and is arranged outside the injection area (18) from the immediately preceding injection nozzle (16) in the direction opposite to the direction of rotation. The weaving rotor of the opening serially arranged loom according to claim 2.