KR830000800B1 - Air Injection Method of Auxiliary Nozzle of Jet Loom - Google Patents

Abstract

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Description

Air Injection Method of Auxiliary Nozzle of Jet Loom

1 is a partially omitted perspective view showing an example of a jet loom used in the present invention.

2 is a right side view of FIG.

3 is an explanatory diagram showing an embodiment in which the present invention is embodied. Auxiliary Nozzles N1 to N8

The present invention relates to a method of spraying an auxiliary nozzle in a jet loom.

口)내에 다수 설치한 보조노즐을 순차단계적으로 분사하여 위사의 비주를 조세(助勢)하도록 한 제트직기에 있어서는, 각 보조노즐의 분사시간이 같기 때문에[참조 : 일본특허공보(소)제48-31949호], 위사의 굵기, 재질, 우모(羽毛)의 상태 또는 직기의 회전수가 달라져서 위사의 비주속도가 다른 직성(織成) 동작을 행하는 경우에는, 보조노즐의 분사타이밍을 변경하지 않으면 안된다는 결점이 있었다.Conventionally, the weft yarn encased by the main nozzle

In jet looms in which a large number of auxiliary nozzles installed inside the nozzle are sequentially sprayed to liquefy the warp of the weft, the injection time of each auxiliary nozzle is the same (refer to Japanese Patent Publication 48-48). No. 31949], when the weft motion of the weft is different due to the change in the thickness of the weft, the material, the state of the hair, or the number of revolutions of the loom, the defect that the injection timing of the auxiliary nozzle must be changed. There was this.

That is, it was necessary to speed up the injection timing of the auxiliary nozzle in the case where the weft speed of the weft was fast, and conversely, to delay the injection timing of the auxiliary nozzle when the weft speed of the weft was slow, so that the jet flow acted on the weft.

Also, even if the weaving conditions are the same, the non-speed and non-coil paths of the weft fluctuate with each indentation motion, and the fluctuation becomes remarkable until the end of the indentation motion. There was a flaw that caused a miss in the stomach.

An object of the present invention is to increase the injection time of each auxiliary nozzle from the start of the inlet operation as the inlet progresses, so that the air of the auxiliary nozzle in the jet loom does not need to adjust the injection timing of the auxiliary nozzle even when the weaving conditions are changed. It is to provide a spraying method.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

1 is a body having a guide (1a) installed on the body frame 2, (3) is pre-inserted into the main nozzle connected to the air supply (not shown) of the base disposed on the side of the body (1) The weft yarns are arranged in a reservoir (between the guides 1a) formed by the warp Y and the body 1 together with the injection of the high pressure air. N is a plurality of auxiliary nozzles installed at the same interval on the body (2), the upper end thereof is stretched near the guide (1a) to inject air in the non-circumferential direction of the weft that is arranged between the guide (1a) It is to be taxed.

By the way, the auxiliary nozzle (N), but is typically installed in looms APPLICABLE TO AN EXTRA PERSON than 10, it will be described In the case of spraying the convenience of eight secondary nozzles (N ₁ to N ₈₎ in the present invention embodiment.

는 위입 개시시점 0로 부터 T시간에서 위사가 저구내에 삽입을 완료하기 까지의 사이에 있어서 위사가 같은 속도로 비주한 경우를 가정하여 각 보조노즐(N₁내지 N₈)에 위사가 달하는 각 시간을 직선으로 연결한 통상의 위입동작 직선을 표시하는 것이다.3 shows a single indentation period on the lateral side X and the arrangement width of the auxiliary nozzles on the vertical axis Z.

Is the angle at which the wefts reach each auxiliary nozzle (N ₁ to N ₈ ) assuming that the wefts move at the same speed between the time of starting the inlet and the time when the weft completes the insertion into the reservoir. The normal indentation line connecting the time by a straight line is displayed.

At the same time, when the weft is injected from the main nozzle together with the high pressure air and the weft is started to be inserted into the reservoir, at the same time, the compressed air is supplied from all the auxiliary nozzles (N ₁ to N ₈ ) at the same time by a separate air supply device. Is sprayed for a short time to generate an air flow over the entire length of the weft passage of the reservoir (see arrow of FIG. 3).

Next, the injection of the third to eighth auxiliary nozzles N ₃ to N ₈ is prevented, and the first auxiliary nozzle N ₁ is continuously sprayed for t ₁ hour from the start of the entrainment. ₁ ) Tighten the wefts in the vicinity, and again, after the wefts reach the second auxiliary nozzle (N ₂ ), the second auxiliary nozzle (N ₂ ) is continuously sprayed for t ₂ (t ₂ > t ₁ ) time. Tighten the wefts surrounding the nozzle (N ₂ ).

Immediately after the completion of the injection of the auxiliary nozzles N ₁ to N ₈ , the third auxiliary nozzle N ₃ is sprayed again from t ₃ hours before the weft yarn reaches the third auxiliary nozzle N ₃ . After reaching (N ₃ ), the injection stops after t ₄ (t ₄ > t ₂ ) time elapses, and then the weft of the weft is in between.

Next, the weft starts spraying this nozzle (N ₄ ) before t ₅ (t ₅ > t ₃ ) time to reach the fourth auxiliary nozzle (N ₄ ), and after reaching t ₆ (t ₆ > t ₄ ) Participating in time to tax the secretary of weft in between.

Again, the fifth to eighth auxiliary nozzles N ₅ to N _{8 are} formed in the same manner as the third and fourth auxiliary nozzles N ₃ and N ₄ , that is, the subsequent auxiliary nozzles have a longer injection time. The weft is jetted step by step in an overlapping state, and the weft thread passing through each nozzle N ₅ to N ₈ is conditioned. In addition, the injection time of the eighth auxiliary nozzle N ₈ is particularly long in order to give tension to the weft yarn until the weft hits the body.

가

로 되지만, 이 상태로도 전체 보조노즐(N₁내지 N₈)의 분사가 위사에 대하여 유효하게 작용하므로, 보조노즐(N₁내지 N₈)의 분사타이밍을 늦추지 않아도 된다. 반대로 직성동작조건이 달라져서 위사의 비주속도가 빨라지고 위입 동작시간이 짧아지는 경우에는, 위입 동작직선

가

로 되지만, 이 상태로도 전 보조노즐(N₁내지 N₈)의 분사가 위사에 대하여 유효하게 작용하므로, 각 노즐(N₁내지 N₈)의 분사타이밍을 빠르게 하지 않아도 된다.By the way, when the weft, the material, the state of the feathers, or the loom rotation of the weft is changed, so that the specific speed of the weft is slow and the indentation operation time is long,

end

In this state, however, the injection of all the auxiliary nozzles N ₁ to N ₈ effectively acts on the weft yarns, so that the injection timing of the auxiliary nozzles N ₁ to N ₈ need not be delayed. On the contrary, in the case where the weaving operation conditions are changed and the weft speed becomes faster and the indentation operation time becomes short, the indentation operation straight line

end

In this state, however, the injection of all the auxiliary nozzles N ₁ to N ₈ effectively acts on the weft yarns, so that the injection timing of each nozzle N ₁ to N ₈ does not have to be accelerated.

(

,

)는 실제로 위입 동작이 진행하는데 따라 일정하지 않은 곡선(제3도 p 참조)으로 되나, 이 경우에도 보조노즐의 분사가 위사에 대하여 유효하게 작요하므로 보조노즐(N₁내지 N₈)의 분사타이밍을 조절할 필요는 없다.By the way, linear movement

(

,

) Is actually an inconsistent curve (see FIG. 3 p) as the indentation progresses, but in this case, the injection timing of the auxiliary nozzles N ₁ to N ₈ is required because the injection of the auxiliary nozzle is effectively small for the weft yarn. There is no need to adjust it.

(또는

,

)에서도 볼 수 있는 바와 같이 동일조건에서의 위입동작에 있어서의 각 위입 동작을 보아도, 각 위입 때마다의 시간에 대한 위사의 위치는 상당히 불균일하게 되고 이러한 불균일이 위입쪽보다도 반대쪽으로 갈수록 조장된다는 현상이 생기고 있으나, 본 발명은 보조노즐에 의한 분사시간을 점차 증대하여가는 방법을 취하기 때문에 위입될 때마다 상기 현상이 생겼다하여도 이것을 확실하게 보완하는 것이 가능하다.Indirect motion straight line

(or

,

As can be seen from the above), even if we see each intrusion operation under the same conditions, the position of the weft with respect to the time for each intrusion becomes quite nonuniform and this nonuniformity is promoted toward the opposite side than the indentation side. However, the present invention takes a method of gradually increasing the injection time by the auxiliary nozzle, it is possible to reliably compensate for this even if the above phenomenon occurs every time it enters.

In addition, in the above embodiment, the auxiliary nozzles N ₁ to N ₈ are all sprayed at the same time at the start of the entrainment. However, in this way, the air flow can be generated in advance over the entire length of the weft passage in the reservoir. When the starting timing of the auxiliary nozzle is slower than the injection timing of the main nozzle, such as when driving slowly until the woven fabric is formed to a certain extent at the start, the intrusion can be flexibly performed even when the injection does not act on the weft. In addition, the auxiliary nozzle may not be sprayed in Japan and may be performed during the enameling operation.

As described above, the present invention inserts the weft jetted from the main nozzle into the reservoir and at the same time, a plurality of auxiliary nozzles are sequentially sprayed according to the progress of the inlet operation so that the weft of the weaving machine is carried out. In this case, as the injection time of the auxiliary nozzle is increased with the passage of the indentation operation, there is an effect that it is not necessary to adjust the injection timing of the auxiliary nozzle even when the indentation time is changed due to the change in the weaving conditions.

Claims (1)

In the jet loom which inserts the weft injected from the main nozzle into the reservoir and jets a plurality of auxiliary nozzles step by step in accordance with the progress of the indentation operation, so that the weft of the weft is engraved and indented. Air injection method of the auxiliary nozzle in the jet loom, characterized in that to increase the injection time of the auxiliary nozzle with the passage of time.

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