JPH0748691Y2 - Yarn separating device - Google Patents

Description

[Detailed description of the device]

[0001]

INDUSTRIAL APPLICABILITY The present invention relates to a pneumatic spinning device, in which, when a yarn is spliced, a yarn separating member that prevents two yarns sent from air jet nozzles juxtaposed from each other from being entangled with each other is smooth. The present invention relates to a yarn separating device that can be separately introduced.

[0002]

2. Description of the Related Art Conventionally, in a pneumatic spinning device, as shown in FIG. 4, slivers S ₁ and S ₂ drawn from a can (not shown) pass through trumpet guides 1a and 1b juxtaposed to each other and move to the back. The air spinning device 3 is supplied to the draft device 2 including the roller pair 2a, the middle roller pair 2b mounted with an apron belt, and the front roller pair 2c, and is provided with the air spinning nozzles 3a and 3b in the parallel state.
The yarn Y is twisted by the yarn guide portion 4 and is aligned by a yarn guide 5 through a yarn guide portion 4, and the yarn Y is directly passed through a feed roller 6 including a nip roller 6a and a delivery roller 6b, a slab catcher 7, and a traverse guide 8
Then, the package P was wound on the winding device 9 while forming the package P.

Now, when the slab catcher 7 detects a defect of the yarn, the cutter 10 provided in the yarn guide portion 4 cuts the yarn Y, and at the same time, the suction nozzle on the yarn joining carriage (not shown) rotates. The tip of the lever is the air spinning nozzle 3a,
3b is approached to the yarn outlet center position, the cutting yarn end is sucked and gripped, and the yarn is returned to the old position while the slab catcher 7
And a traverse guide 8 are arranged on the front surface of a knotter (not shown). At that time, the W-shaped recess 11a,
The yarn separating guide 11 provided with 11b rises from below the yarn traveling path between the yarn guide portion 4 and the yarn shifting guide 5, and comes into contact with the two yarns in the parallel state pulled out by the suction nozzle, The yarns Y ₁ and Y ₂ are separately held in the recesses 11a and 11b of the yarn separating guide 11 to prevent the two yarns from being entangled with each other.

However, the yarns Y ₁ and Y ₂ are not separated and held in the recesses 11a and 11b of the yarn separation guide 11 due to the yarn paths of the yarns Y ₁ and Y ₂ drawn out by the suction nozzle and the running condition of the yarns. The phenomenon in which the yarns of the above-mentioned yarns are retained in one concave portion is recognized, and in particular, the air spinning nozzles 3a, 3
In the yarn outlet portion and the knotter portion of b, the tip end portions of the suction nozzles are placed at their respective center positions, but the suction nozzles reciprocate diagonally from the left side with respect to the center when viewed from the front, so the air spinning nozzles 3a, In the intermediate process from the yarn outlet portion of 3b to the front surface of the knotter, the yarn is pulled out while taking a trajectory to the right of the center,
The yarn Y ₂ located on the left side was often fitted into the recess 11 a on the right side of the yarn separation guide 11 and held together with the yarn Y ₁ .

[0005]

DISCLOSURE OF THE INVENTION In a pneumatic spinning device, the present invention provides a yarn separating member which prevents two yarns sent from air jet nozzles juxtaposed to each other from being entangled with each other during yarn splicing. An object of the present invention is to obtain a yarn separating device that can be smoothly separated and introduced.

[0006]

When a yarn is spliced, a suction nozzle grips a yarn partitioning portion of a yarn separation guide which prevents two yarns spun from juxtaposed air spinning nozzles from being entangled with each other. 2 on the side of the air spinning nozzle
A thread introduction pin is provided so as to face the locus direction in which the book thread draws when the suction nozzle returns.

[0007]

Since the yarn introducing pin on the yarn separating device placed on the center is provided in the direction of the locus, it is sucked and grasped by the suction nozzle and drawn out along the locus drawn when the suction nozzle returns. The two yarns on the side of the air spinning nozzle are completely and easily separated into the recesses on the yarn separating device.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

The overall construction of the pneumatic spinning device equipped with the yarn separating device of the present invention is no different from that of the conventional pneumatic spinning device shown in FIG. Therefore, in FIG. 1, the same parts as those in FIG. 4 are denoted by the same reference numerals.

That is, in FIG. 1, 1a and 1b are trumpet guides juxtaposed to each other for guiding slivers S ₁ and S ₂ drawn from a can (not shown), and 2 are supplied from the trumpet guides 1a and 1b. A drafting device for drafting the slivers S ₁ and S ₂ , in which the yarn sent from the front roller pair 2c is provided with the air spinning nozzles 3a and 3b in a parallel state.
Is introduced and twisted. Next, the thread is thread guide part 4,
The yarns are aligned by the yarn pulling guide 5, and then wound through the feed roller 6, the slab catcher 7, and the traverse guide 8 while forming the package P on the winding device 9. 5a is a thread separating member for preventing the two yarns Y _1, Y ₂ that entangled during normal spinning.

Now, when the slab catcher 7 detects a defect of the yarn, the cutter 10 provided in the yarn guide portion 4 cuts the yarn Y, and at the same time, the slab catcher 7 and the winding device 9 are operated by the spinning device. A suction nozzle 12 on a yarn splicing carriage (not shown) running along the longitudinal direction is rotated to bring its tip toward the center position of the yarn outlets of the air-spinning nozzles 3a and 3b to suck and grasp the cut yarn end. While returning to the old position, the yarn is transferred to the front of the knotter of the yarn splicing cart. At that time, the yarn separating device 13 of the present invention rises from below the yarn traveling path between the yarn guide portion 4 and the yarn shifting guide 5, and the suction nozzle
The two yarns pulled out by 12 are brought into contact with each other to separate the yarns Y ₁ and Y ₂ from each other and prevent the two yarns from being entangled with each other.

As shown in FIGS. 2, 3 and 4, the thread separating device 13 of the present invention has a thread separating guide 14 having W-shaped recesses 14a and 14b, and the thread separating guide 14 is screwed. The bracket 15 is fixed by an appropriate means such as a stopper, and the bracket 15 is swung in synchronization with the rotation of the suction nozzle 12 by an appropriate transmission mechanism (not shown) to move the yarn separation guide 14 upward from below the yarn traveling path. Ascending, suction nozzle 12 returns, knotting ends, and thread separation guide
It is configured to descend 14. Furthermore, the thread separation guide
The yarn partitioning member 14 has a yarn introduction pin 16 facing the direction of the trajectory drawn by the _two yarns Y ₁ and Y ₂ on the side of the air-spinning nozzle 3 sucked and gripped by the suction nozzle 12 when the suction nozzle 12 returns. It sticks to 14.

Next, the operation of the yarn separating device 13 of the present invention will be described. Normally, in the yarn outlets and knotters of the air spinning nozzles 3a and 3b, the tips of the suction nozzles 12 are placed at their respective center positions. when the suction nozzle 12 is viewed from the front, for reciprocating the left oblique to the center, in the intermediate process leading air spinning nozzle 3a, from the yarn outlet of 3b to knotter front yarn Y _1, Y ₂ is 2 As shown in, the trajectory y ₁ , y to the right of the center
₂ is taken out. Therefore, in the locus, the yarn Y ₂ positioned on the locus y ₂ on the left side is moved by the yarn separating device 13 placed on the center as shown by an arrow A, as shown by an arrow A. The thread Y _{1 that} is in contact with the thread introduction pin 16 provided on the right side and is fitted into the concave portion 14b of the thread separation guide 14 along the slope, and is located on the locus y ₁ on the right side, as shown by the arrow B, directly Fit into the recess 14a of the thread separation guide 14,
As a result, it is possible to completely prevent the two yarns spun from the air spinning nozzle from being separated and entangled with each other during yarn joining.

[0014]

As described in detail above, the yarn separating device of the present invention is a yarn separating guide for preventing two yarns spun from the air-spinning nozzles juxtaposed to each other from being entangled with each other during yarn joining. The yarn partitioning portion is provided with a yarn introducing pin that is oriented in the direction of the trajectory drawn by the two yarns on the side of the air spinning nozzle that are suction-held by the suction nozzle when the suction nozzle returns. In the nozzle section and the knotter section, the tip of the suction nozzle is placed at the center position of each, but in the intermediate process from the yarn outlet section of the air spinning nozzle to the front surface of the knotter, the result is that it moves off the center. Although the two yarns on the side of the air spinning nozzle that are suction-held by the suction nozzle are drawn out along the trajectory drawn when the suction nozzle returns, Since the yarn introducing pin on the yarn separating device placed on the upper part is provided in the direction of the locus, the two yarns on the side of the air-spinning nozzle are completely and completely formed in the concave portion of the yarn separating guide during yarn joining. It could be easily separated.

[Brief description of drawings]

FIG. 1 is a perspective view of an air spinning device equipped with the yarn separating device of the present invention.

FIG. 2 is a perspective view of the yarn separating device of the present invention.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view of the same.

FIG. 5 is a perspective view of a pneumatic spinning device including a conventional yarn separating device.

[Explanation of symbols]

 2 Draft device 3 Air spinning device 5 Yarn pulling guide 6 Feed roller 7 Slab catcher 9 Winding device 11, 14 Yarn separating guide 12 Suction nozzle 13 Yarn separating device 15 Bracket 16 Yarn introducing pin

Claims (1)

[Scope of utility model registration request] 1. When the yarn is spliced, the air-spinning is suction-held by a suction nozzle at a yarn partition portion of a yarn separation guide that prevents two yarns spun from the air-spinning nozzles juxtaposed to each other from being entangled with each other. A yarn separating device provided with a yarn introducing pin that is oriented in a trajectory direction in which two yarns on the nozzle side are drawn when the suction nozzle returns.