JPH0712478U - Duct for blowing up single yarn of the compound yarn machine - Google Patents

Abstract

(57) [Abstract] [Purpose] When replacing the yarn feeding package or breaking the yarn in the yarn spinning machine, reliably guide the yarn feeding side yarn end in a stable state to the intermediate pipe at the yarn feeding side yarn end delivery position. [Constitution] A cylindrical duct (2g) attached to the lower side of the lower thread guide (19) and having an air control member (2h) at the upper edge (2i) for controlling the air jetted from the nozzle (9). )When,
It consists of an upper duct (3a) fixed to the upper side of the lower thread guide (19).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a single yarn blowing duct for a yarn supplying side of a yarn spinning machine.

[0002]

[Prior art]

 Conventionally, when the winding operation of the yarn supply package is completed in the process of rewinding the yarn supply package by the yarn winding machine, the newly supplied yarn end of the yarn supplying side and the yarn end of the winding side are fed by a splicer. You have to make a joint. Therefore, it is necessary that the yarn end on the yarn feeding side and the yarn end on the winding side are sucked by the relay pipe and the suction arm, respectively, and guided to the predetermined positions where the yarn splicing work can be performed while being held by the relay pipe and the suction arm, respectively. there were. Various yarn feeding side yarn end blowing devices have been developed in order to reliably guide the yarn feeding side yarn end, particularly the yarn feeding side yarn end to the relay pipe. In order to suck the yarn end on the yarn feeding side, a single yarn blowing duct (1) as shown in Fig. 1 was installed in the yarn spinning machine. That is, the tubular duct (2) having the trumpet-shaped opening (2a) at the lower end is fixed to the lower side of the lower thread guide (8), and the upper duct (3) having the upper guide (13) is fixed to the upper side. This is a single yarn blowing duct.

When the above-mentioned single yarn blowing duct (1) is installed in the yarn spinning machine and rewinding, the air jetted from the nozzle (9) is inserted into the center hole of the yarn feeding package P by the one-dot chain line. The yarn end Y1 shown on the yarn feeding side passes from the trumpet-shaped opening (2a) of the single yarn blowing duct (1) through the tubular duct (2) and the upper duct (3), and the relay pipe (10). It is designed to be sucked in. In the single yarn blowing duct (1), since the distance between the tubular duct (2) and the yarn feeding package P is short, air is stably fed from the nozzle (9) into the tubular duct (2). Was being jetted. Therefore, it was possible to reliably guide the yarn feeding side yarn end Y1 to the relay pipe (10).

After the yarn splicing work of the yarn feeding side yarn end Y1 guided to the relay pipe (10), the single yarns drawn out from the left and right yarn feeding packages P are respectively attached to the arms (8a) of the lower yarn guide (8). ), The hand is pulled in a direction in which it can be inserted into the upper thread guide (13). After that, it was rewound while being unwound from the yarn feeding package P.

However, the above single yarn blowing duct has the following problems caused by the short distance between the tubular duct (2) and the yarn supplying package P.

As shown in FIG. 1, when the distance between the tubular duct (2) and the yarn feeding package P is short, the outer diameter D1 of the yarn feeding package P becomes the trumpet-shaped opening (2a) at the lower end of the tubular duct (2). ) Is larger than the inner diameter d1 of), the mass of the single yarn swung between the tubular duct (2) and the yarn feeding package P during winding is small, and sufficient centrifugal force can be obtained. Inadequate ballooning due to lack of it. As a result, the single yarn pulled out from the yarn supplying package P may run while being dragged on the side surface of the yarn supplying package P, which may cause fluctuation in tension or cause fuzz or yarn breakage. Further, with the single yarn wound in the above state, problems remain in strength and feeling.

In order to solve the above-mentioned problems, the applicant has described the tubular duct (2b) (hereinafter referred to as a short tubular duct) in which the axial length of the tubular duct (2) is approximately half. A new yarn was installed on the single yarn blowing duct (1) to wind the single yarn. The distance between the lower end of the trumpet-shaped opening (2c) and the upper surface of the yarn supplying package P when the short tubular duct (2b) is attached is approximately twice the outer diameter D1 of the yarn supplying package P, or The distance from the cylindrical duct drawing portion (2d) to the upper surface of the yarn feeding package P was set to be approximately 30 cm. As a result, the ballooning of the yarn drawn from the yarn supply package P is improved.

[0008]

[Problems to be solved by the device]

 However, in the yarn splicing operation when replacing the yarn feeding package P, the flow of the air jetted from the nozzle (9) was shortened due to the long distance between the short tubular duct (2b) and the yarn feeding package P. Since it diffuses by the time it reaches the trumpet-shaped opening (2c) of the mold duct (2b), the pressure of the air flowing into the short tubular duct (2b) is greater than that when the tubular duct (2) is installed. Tended to weaken. The decrease in pressure inside the short tubular duct (2b) makes the air flow from the inside of the short tubular duct (2b) to the upper duct (3) unstable, so that the yarn end Y1 on the yarn feeding side moves from the nozzle (9). When it is blown up by the jetted air, it flows out from the upper edge of the short tubular duct (2b) to the outside of the short tubular duct (2b), and it becomes impossible to suck it into the relay pipe (10). was there.

[0009]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is a single yarn blowing duct in a yarn spinning machine, characterized by having an air control member for guiding the single yarn tip to a relay pipe at the upper edge of the tubular duct. This is a single yarn blowing duct.

[0010]

[Action]

 The single yarn blowing-up duct having the above-mentioned tubular duct makes it possible to reliably guide the yarn end on the yarn supplying side to the relay pipe at the predetermined delivery position when the yarn supplying package is replaced.

[0011]

【Example】

The present invention will be described below with reference to the drawings. FIG. 2 is a configuration diagram of the yarn spinning machine. In the yarn mixing machine (18), when the yarn supplying package P is replaced, the air supplied from the nozzle (9) blows up the yarn end Y1 on the yarn supplying side. The yarn end Y1 that has been blown up is sucked from the trumpet-shaped opening (2f) through the tubular duct (2e) and the upper duct (3a) to the relay pipe (10b) shown by the dashed line in the figure. It The relay pipe (10b) rotates in the A direction around the relay pipe shaft portion (10a) while holding the yarn feeding side yarn end Y1 and moves to the position (1) shown by the solid line in the figure.
Move to 0). In addition, the winding side yarn end Y2 is also sucked into the suction nozzle (11b) indicated by the alternate long and short dash line in the figure. Then, it rotates in the B direction around the suction mouth shaft portion (11a) and is carried to the position (11) of the suction mouth shown by the solid line. By the above rotation of the relay pipe (10) and the suction mouth (11), the yarn feeding side yarn end Y1 and the winding side yarn end Y2 are respectively inserted into the splicers (12a, 12b), so that the splicer (12a, 12b) By operating it, the yarn joining operation of the yarn feeding side yarn end Y1 and the winding side yarn end Y2 is performed. After the completion of the yarn splicing work, the yarns Ya and Yb pulled out from the left and right yarn supplying packages P pass through the tubular duct (2e) and the upper duct (3a) by driving the winding drum (17). After being aligned at the merging section (17), tension can be applied by the tensors (14a, 14b). After passing through the tensors (14a, 14b), it is inserted into the fluff entanglement nozzle (15), and the fluffs are entangled with each other to prevent the yarns Ya and Yb from being wound in a separated state. After passing through the entangled nozzle (15), it is wound into the winding package (16).

3 and 4 show a first embodiment of the yarn blowing duct of the yarn spinning machine according to the present invention. In the single yarn blowing duct (1a), the tubular duct (2g) is fixed to the lower yarn guide (19) via a fixing member (20). Regarding the tubular duct (2g), the tubular duct (2g) is attached to the lower thread guide (19) at an angle, and the tubular duct is attached to the upper edge (2i) of the tubular duct. An air control member (2h) is provided to control the flow of air blown into (2f). The flow of air injected from the nozzle (9) is caused by the air control member (2h) at the upper edge portion (2i) of the tubular duct, and the air is not discharged from the tubular duct (2g) and the upper duct (3a ) And the relay pipe (10).

5 and 6 show a second embodiment of the yarn blowing duct according to the present invention. As in the case of the first embodiment, in the single yarn blowing duct (1b), the tubular duct (2j) is fixed to the lower yarn guide (19) via the fixing member (20). Regarding the tubular duct (2j), when fixed to the lower thread guide (19) with the entire circumference of the upper edge (2k) of the tubular duct inclined at a predetermined angle, the lower thread guide (19) It is machined so that it is parallel to the lower surface. Due to the tubular duct (2j) having the upper edge (2k) of the tubular duct, the air ejected from the nozzle is not discharged to the outside of the tubular duct (2j), but the upper duct from the tubular duct (2j). It flows into (3a) and the relay pipe (10).

[0014]

[Effect of device]

 As described above, according to the present invention, the following excellent effects are exhibited.

By providing a member for connecting a gap portion generated between the upper edge portion of the tubular duct and the upper duct at the upper edge portion of the tubular duct, it is possible to control an unstable air flow in the gap portion. To be done. Therefore, air can be blown into the upper duct from the tubular duct, and the yarn end on the yarn supplying side can be reliably guided to the relay pipe waiting at a predetermined position when the yarn supplying package is replaced.

[Brief description of drawings]

FIG. 1 is a view showing a conventional yarn blowing guide.

FIG. 2 shows the overall structure of the yarn spinning machine.

FIG. 3 is a front view showing a first embodiment of the present invention.

FIG. 4 is a side view of FIG.

FIG. 5 is a front view showing a second embodiment of the present invention.

FIG. 6 is a side view of FIG.

[Explanation of symbols]

 2g Cylindrical duct 2h Air control member 3a Upper duct 10 Relay pipe 19 Lower thread guide 20 Fixing member

Claims (1)

[Scope of utility model registration request] 1. A single yarn blowing duct in a yarn spinning machine, comprising an air control member for guiding a single yarn tip to a relay pipe at an upper edge portion of a tubular duct. duct.