JPH0781849A - Auxiliary yarn joiner - Google Patents

Abstract

PURPOSE:To provide an auxiliary yarn joiner in which the rate at which an intermediate pipe makes errors in capturing yarn ends is reduced. CONSTITUTION:In an auxiliary yarn joiner comprising a yarn holding means 4 provided in a yarn guide Y leading from a feed bobbin 1 to a winding package 2 above it, for holding the ends of cut yarn, a cutter 5 provided for cutting yarn between the yarn holding means 4 and the feed bobbin 1, and a yarn capturing means 7 for capturing a yarn end cut by the cutter 5 and leading to the feed bobbin and for moving the yarn end to a yarn joiner 9, a yarn blow-up means 19 is provided between the feed bobbin 1 and the yarn capturing means 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention catches the yarn end on the yarn supplying bobbin side with a relay pipe (yarn catching means) when the yarn is wound from a yarn supplying bobbin into a winding package. The present invention relates to a yarn splicing auxiliary device adapted to move the yarn to the yarn splicing device.

[0002]

2. Description of the Related Art In a yarn winding device such as a winder, as shown in FIG. 3, a slab or the like is provided in a yarn path Y of a yarn unwound from a yarn supplying bobbin 1 and wound into an upper winding package 2. A yarn clearer 3 (yarn monitoring device) that cuts a yarn when a defective yarn portion is detected is provided.

The yarn end of the yarn (bottom yarn) on the yarn supplying bobbin 1 side cut by the yarn clearer 3 is a yarn trap (yarn holding means) provided on the yarn path Y as shown in FIG. 2 (a). )
4 is sucked and the defective yarn portion is sucked. After that, the yarn between the yarn trap 4 and the yarn supplying bobbin 1 is cut by the cutter 5, and the defective yarn portion is sucked and removed into the yarn trap 4. The yarn end 6 of the yarn cut by the cutter 5 is captured by the suction port 8 of the relay pipe 7 as shown in FIG. 2 (b), and the relay pipe 7 is rotated to reach the upper yarn joining device 9. Be moved.

In this yarn splicing device 9, the lower yarn on the yarn supplying bobbin 1 side moved by the relay pipe 7 and the upper yarn on the winding package 2 side moved by the suction mouth 10 are twisted at high speed by high pressure air. It is rolled and spliced.

[0005]

However, in such a yarn splicing assisting device, the moment when the yarn between the yarn trap 4 and the yarn supplying bobbin 1 is cut by the cutter 5 in the state shown in FIG. 2 (a). In some cases, the yarn is pulled toward the yarn supplying bobbin 1 due to the yarn tension, and the yarn end 6 cannot be captured by the suction port 8 of the relay pipe 7 as shown by the broken line in FIG. This problem becomes particularly noticeable when the yarn wound around the yarn supplying bobbin 1 is a yarn such as animal hair or elastic yarn, which has poor unwindability and high yarn tension.

[0006] In this way, when the yarn end 6 cut by the cutter 5 during yarn joining falls off without being caught by the relay pipe 7, the yarn joining device 9 cannot join the yarn. Is forced to discharge the remaining yarn supplying bobbin 1 and change the bobbin, resulting in poor efficiency.

An object of the present invention, which has been devised in view of the above circumstances, is to provide a yarn splicing assisting device that reduces mistakes in catching the yarn end of a relay pipe.

[0008]

To achieve the above object, the present invention provides a yarn holding means for holding a broken yarn end in a yarn path from a yarn supplying bobbin to an upper winding package. A yarn provided with a cutter for cutting the yarn between the yarn holding means and the yarn supplying bobbin, and provided with a yarn catching means for catching a yarn end connected to the yarn supplying bobbin cut by the cutter and moving the yarn end to a yarn joining device. In the splicing auxiliary device, a yarn blowing device is provided between the yarn supplying bobbin and the yarn catching device.

[0009]

When the yarn between the yarn holding means and the yarn supplying bobbin is cut by the cutter, the yarn end pulls toward the yarn supplying bobbin side due to the yarn tension and tends to fall downward. The yarn is left standing in the air by the air blown upward from the yarn blowing device provided between the yarn and the device. Therefore, the yarn is surely caught by the yarn catching means,
The yarn is spliced by being moved to the yarn splicing device.

[0010]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 3, the winder unit 11
A cradle 13 that supports the winding package 2 and a traverse drum 14 that drives the winding package 2 to rotate in contact are provided on the upper portion of the side frame 12. On the other hand, in the lower part of the side frame 12, the yarn feeding bobbin 1
Is rotatably erected and supported, and by rotating the traverse drum 14, the yarn of the yarn supplying bobbin 1 is unwound upward and can be rewound into the winding package 2.

A yarn path Y from the yarn supplying bobbin 1 to the winding package 2 connects the upper yarn of the winding package 2 and the lower yarn of the yarn supplying bobbin 1 from the upper side to the lower side when the yarn is broken. A splicing device 9, a yarn clearer 3 for cutting a yarn when a defective yarn portion such as a slab is found during winding, and a yarn as a yarn holding means for sucking and holding the yarn end of the cut yarn on the yarn supplying bobbin 1 side. The trap 4, the tenser 15 which gives a predetermined tension to the traveling yarn, the yarn trap 4 and the yarn feeding bobbin 1.
A cutter 5 for cutting the yarn between the yarn and the yarn, a yarn guide plate 17 having a V-shaped guide groove 16 for guiding the yarn, and a balun breaker 18 for controlling the balloon of the yarn unwound from the yarn supplying bobbin 1 are provided. ing. The yarn trap 4 as the yarn holding means is not limited to one that sucks with air, but may be one that mechanically holds the yarn.

Of the yarns cut by the yarn clearer 3, the upper yarn on the winding package 2 side is pulled out by the suction mouth 10 rotatably provided on the side frame 12, and the yarn end thereof is fed to the yarn joining device 9. It is supposed to be handed over. On the other hand, among the yarns cut by the yarn clearer 3, the lower yarn on the yarn supplying bobbin 1 side is temporarily sucked and held by the yarn trap 4 as shown in FIG. 2 (a). The yarn between the yarn supplying bobbin 1 and the yarn feeding bobbin 1 is further cut by the cutter 5, and the upper yarn (defective yarn portion) is sucked and removed by the yarn trap 4, and the yarn end 6 of the lower yarn is removed as shown in FIG. 2 (b). Is caught by the suction port 8 of the relay pipe 7 serving as a yarn catching means and delivered to the yarn joining device 9. The relay pipe 7 as the yarn catching means is not limited to the one that sucks with air, but may be one that mechanically catches the yarn.

The feature of the present embodiment is that between the yarn supplying bobbin 1 and the relay arm 7, the yarn end 6 of the lower yarn on the yarn supplying bobbin 1 side cut by the cutter 5 is provided on the relay arm 7. In order to catch the yarn, a yarn blowing nozzle 19 is provided as a yarn blowing device that blows the yarn upward. This yarn blowing nozzle 19
Are provided in the balun breaker 18 as shown in FIG. The balun breaker 18 is formed in a polygonal or circular hollow conical shape, and guides the balloon of the yarn unwound from the yarn supplying bobbin 1 therein to control the balloon.
The unwinding resistance is made small and uniform. Inside the balun breaker 18, the yarn blowing nozzle 19 that blows air upward along the yarn path Y is provided.

The yarn blowing nozzle 19 is branched from an air pipe of a tensor blast (not shown) for blowing off yarn waste around the tensor 15, and blows air simultaneously with the tensor blast. Further, the yarn blowing nozzle 1
9 is controlled by a controller not shown in FIG.
In the state of (a), air is blown immediately before cutting the yarn between the yarn supplying bobbin 1 and the yarn trap 4 by the cutter 5, and the blowing is stopped when the relay pipe 7 that has caught the yarn end 6 is rotated upward. It is supposed to do.

The operation of this embodiment having the above configuration will be described.

When the yarn clearer 3 finds a defective yarn portion such as a slab during winding of the yarn, the yarn clearer 3 cuts the yarn. Then, among the cut yarns, the upper yarn is wound around the winding package 2 and the lower yarn is sucked and held by the yarn trap 4 as shown in FIG. 2 (a). After that, the yarn between the yarn trap 4 and the yarn supplying bobbin 1 is cut by the cutter 5,
The defective yarn portion is sucked and removed from the yarn trap 4.

Immediately before cutting the yarn between the yarn supplying bobbin 1 and the yarn trap 4 with the cutter 5, the yarn blowing nozzle 19 in the balun breaker 18 blows air upward along the yarn path Y. As a result, as shown in FIG. 2 (b), the yarn end 6 cut by the cutter 5 is pulled toward the yarn feeding bobbin 1 side by the yarn tension and tends to fall down, but the yarn feeding bobbin 1 and the relay pipe. The above-mentioned yarn blowing nozzle 19 provided between
The air blown upward from the thread leaves the thread standing in the air. Therefore, the yarn is surely captured by the suction port 3 of the relay pipe 7 and delivered to the yarn joining device 9 by the rotation of the relay pipe 7.

On the other hand, among the threads cut by the yarn clearer 3, the upper thread on the winding package 2 side is the side frame 1
The yarn is drawn out by the suction mouth 10 which is rotatably provided in 2, and the yarn end is delivered to the yarn joining device 9.
Then, in the yarn joining device 9, the upper yarn on the winding package 2 side and the lower yarn on the yarn supplying bobbin 1 side are both twisted at a high speed by the action of high-pressure air and are yarn-joined.

In FIG. 1, reference numeral 20 denotes air blown upward from the bottom surface of the yarn supplying bobbin 1 through the inside of the bobbin 1 when changing the bobbin, and blows up the yarn end hung on the upper end of the bobbin 1 to catch it on the relay pipe 7. It is a blow-up nozzle for bobbin change for making it. At the time of this bobbin change, air is blown from the yarn blowing nozzle 19 immediately after the air is blown from the bobbin changing blowing nozzle 20, and the yarn blown upward by the air of the bobbin changing blowing nozzle 20 is blown by the air of the yarn blowing nozzle 19. You may make it assist by and accelerate further upward.

[0021]

As described above, according to the yarn joining auxiliary device of the present invention, mistakes in catching the yarn end of the relay pipe can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of a yarn splicing auxiliary device showing an embodiment of the present invention.

FIG. 2 is a diagram showing an operating state of the yarn joining auxiliary device.

FIG. 3 is a front view of a winder provided with the yarn joining auxiliary device.

[Explanation of symbols]

 1 yarn feeding bobbin 2 winding package 4 yarn trap 5 as yarn holding means 5 cutter 6 yarn end 7 relay pipe as yarn catching means 9 yarn joining device 19 yarn blowing nozzle as yarn blowing means Y yarn path

Claims (1)

[Claims] 1. A yarn holding means for holding a broken yarn end is provided in a yarn path from a yarn supplying bobbin to an upper winding package, and a yarn between the yarn holding means and the yarn supplying bobbin is cut. And a yarn catching means for catching a yarn end connected to the yarn supplying bobbin cut by the cutter and moving the yarn end to a yarn joining device. A yarn splicing assisting device, characterized in that a yarn blowing device is provided therebetween.