JPH0322284Y2 - - Google Patents

Description

[Detailed Description of the Invention] Field of Industrial Application The present invention relates to a suction nozzle used in a two-ply air spinning machine that combines two yarns spun from a pair of air spinning nozzles.

<Conventional technology> A conventional two-ply spinning machine using a pair of air spinning nozzles has a two-ply spinning machine as shown in Fig. 3.
After the yarn is guided to the air spinning nozzles 31 and 32, the yarns 35 and 36 spun from the holes 33 and 34 are
Normal thread guide line 3 passing through left and right thread guides 37, 38
9 and 40, both threads are suctioned at the same time by a suction nozzle 41, and guided to a knotter.

〓Problem to be solved by the invention〓 In such a device, when the suction nozzle suctions two threads, depending on the feed rate or number of twists of the threads, as shown in Fig. 3, Both yarns may come off from the left and right yarn guides 37, 38, resulting in yarn tangles, and may become a single yarn 42 and be guided to the suction nozzle 41. In this case, the thread cannot be passed through the designated guide in the thread guiding process, so
There was a drawback that predetermined yarn physical property values could not be obtained and the yarn physical properties could not be guaranteed. In addition, during the thread guiding process, the thread becomes tangled in the guide, making it impossible to tie the thread, making it impossible to operate automatically, and production efficiency cannot be maintained.

In order to solve this problem, two suction nozzles 43 and 44 are provided as shown in FIG.
5 and 36 are independently suction nozzles 43 and 4.
4 is also being considered. By doing this, although the mutual entanglement of the threads is reduced, when the suction nozzles 43 and 44 are close to each other, as shown in FIG. The yarn 35 or 36 enters the suction nozzle, creating a crossover yarn 45, which causes the disadvantage that the yarn remains hanging at the mouth of the nozzle and is no longer guided.

〓Means for solving the problem〓 In the suction nozzle of a spinning machine that guides two yarns spun from a pair of air spinning nozzles to a knotter, the tip of the suction nozzle is separated into two to form a first suction pipe. A second suction pipe was constructed, and both suction pipes were connected by a connecting part, and a slit communicating with the inside of both suction pipes was formed inside the connecting part.

〓Operation〓 The suction nozzle of the present invention is configured as described above, so that the yarn coming out from the outlets of the two air spinning nozzles is sucked into the first suction pipe and the second suction pipe, which are separated from each other. Ru. Further, when yarn crossing occurs, the yarn is sucked into the suction nozzle through the slit, and as a result returns to the original state of aligned and doubled yarns at the confluence of the suction tubes.

〓Example〓 An example of the present invention will be described based on FIGS. 1 and 2.

Yarns 5 and 6 are led out from the holes 3 and 4 of the two air spinning nozzles 1 and 2, and each yarn 5 and 6 is sucked into a suction nozzle 7. Suction nozzle 7 is the second
As shown in the figure, the tip part is bifurcated and consists of a first suction pipe 8 and a second suction pipe 9, and the first and second suction pipes 8 and 9 are connected to a connecting part 11.
are connected. The connecting part is equipped with a slit 12,
Each conduit 13 of the first and second suction pipes 8, 9,
14 are connected. In addition, the first suction pipe 8
and the second suction pipe 9 are integrated in a merging pipe 10.

When using the suction nozzle 7 having the above configuration, the yarns 5 and 6 drawn out from the holes 3 and 4 of the air spinning nozzles 1 and 2 are independently connected to each other, and the yarns of the first air spinning nozzle 1 are connected to the first suction tube. 8 into the conduit 13 and the yarn 6 of the second air spinning nozzle 2 is sucked into the conduit 14 of the second suction tube. Thereafter, the yarns 5 and 6 from the suction nozzle 7 become a combined yarn 15 in a confluence pipe 10, and are led to the next process such as a winder. On the other hand, when, for example, a so-called yarn crossing occurs in which the yarn 6 is sucked into the first suction tube 8 due to suction fluctuations, etc.,
The thread passes through the slit 12 and enters the merging pipe 10, and in the process of merging the threads 5 and 6, the thread crossing is eliminated.

Note that, as shown in FIG. 2a, the distribution state of the suction pressure (negative pressure) at the opening of the suction nozzle 7 is highest at the center of the first suction pipe 8 and the second suction pipe 9, and is highest at the center of the first suction pipe 8 and the second suction pipe 9. The slit 12 is lowered. Therefore, the thread passing through each suction tube 8, 9 is guided to the center of each suction tube 8, 9, which is located at a sufficiently distant position, and even if suction fluctuation occurs, it is attracted to other suction tubes, causing yarn crossing. It becomes difficult.

〓Effects of the invention〓 As detailed above, the present invention separates the tip of the suction nozzle into two at the suction nozzle of a spinning machine that guides two yarns spun from a pair of air spinning nozzles to a knotter. The first suction pipe and the second suction pipe were constructed by connecting the two suction pipes with a connecting part, and a slit communicating with the inside of both suction pipes was formed inside the connecting part, so that the two threads were As a result of being suctioned into separate tubes, the first suction tube and the second suction tube, there is no possibility of yarn tangles occurring before the two yarns are suctioned into the suction tube. In addition, since the first suction pipe and the second suction pipe are separated from each other by the connecting part, and the connecting part only has a slit, the suction pressure at the connecting part is low, and the thread is not sucked into the other suction pipe. Thread crossing is less likely to occur. Furthermore, even when thread crossing occurs,
In the process of being sucked through the slit, the yarn returns to its original state at the merging point and becomes a doubling state, which not only makes it possible to obtain the desired yarn properties, but also eliminates the occurrence of yarn tangles in the guide. , Thread tying is performed smoothly, there is no hindrance to automatic operation, and a decrease in production efficiency can be prevented.

[Brief explanation of the drawing]

Fig. 1 and Fig. 2 show an embodiment of the present invention, Fig. 1 is a perspective view showing the whole, Fig. 2 shows a suction nozzle, and Fig. 2a shows the suction pressure at the tip of the suction nozzle. Figure 2b is a front view of the suction nozzle, Figure 2c is a top view of the suction nozzle, Figure 3 is a perspective view showing the entire conventional device, and Figure 4 is a diagram showing the conventional device. A perspective view showing an improvement plan;
FIG. 5 is a perspective view showing the thread passing state of the device shown in FIG. 4. 1, 2... Air spinning nozzle, 5, 6... Yarn, 7
... Suction nozzle, 8 ... First suction pipe, 9 ... Second suction pipe, 11 ... Connection part,
12...slit, 13,14...conduit.

Claims (1)

[Scope of utility model registration request] In a suction nozzle of a spinning machine that guides two yarns spun from a pair of air spinning nozzles to a knotter, the tip of the suction nozzle is separated into two to form a first suction pipe and a second suction pipe, A suction nozzle for an air spinning machine, characterized in that both suction pipes are connected by a connecting part, and a slit is formed inside the connecting part to communicate with the insides of both suction pipes.