JPH0569027U - Winder end face drop prevention device - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to reduce the end drop of the yarn end. In a winder for winding a yarn Y while traversing a package 5 rotating in contact with a rotating drum 4, a fan 14 for generating a wind in a radial direction C at the end of the rotating drum 4 by its rotation. And a cover 16 for guiding the generated wind in the axial direction B of the drum 4 is provided outside the fan 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a winder end face drop prevention device for preventing the end face drop of a package side thread end.

[0002]

[Prior Art]

 The winder pulls out the yarn from the yarn supplying bobbin and winds the yarn around the package while removing the yarn defects such as slabs, and produces a package with a predetermined yarn amount and shape. There is a type in which the package is rotated by bringing the package into surface contact with the drum and traversing the yarn left and right by traverse grooves and the like formed in the drum.

In this one-rider, when a slab catcher detects a defective portion such as a slab, the yarn is electrically or mechanically cut to remove the defect, and the yarn end on the yarn supplying side and the yarn on the package side are removed. The ends are joined by the yarn joining device, and the winding is restarted. Thread breakage may also occur due to other problems.

[0004]

[Problems to be solved by the device]

 By the way, when a yarn breakage occurs, the yarn end processing on the yarn supplying side can be easily performed by holding the yarn by the yarn end suction tube because the yarn supplying bobbin itself is stationary. If the package side yarn end moves toward the traverse end due to the rotation of the drum after thread cutting, it may fall off the end face of the package due to inertia, fall from the end face of the package, and be wound around the winding tube. In this way, when the yarn end is wound around the winding tube, the suction mouth pulls out the yarn end and guides it to the yarn splicing device for splicing. You may not be able to talk.

Therefore, the present invention has been made in view of such circumstances, and an object thereof is to provide an end face drop prevention device of a winder that can reduce the end face drop of a yarn end. Especially.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention relates to a winder in which a yarn is wound on a package rotating in contact with a rotating drum while traversing the package, and the end portion of the rotating drum is rotated by a radial direction. A fan that generates wind is provided, and a cover that guides the generated wind in the axial direction of the drum is provided outside the fan.

[0007]

[Action]

 By installing a fan at the end of the rotating drum and providing a cover on the outside of the fan, when the drum rotates, wind is generated radially by the fan, and this wind is guided by the cover in the axial direction of the drum. .. As a result, the wind is blown from the end to the center of the package, so that the yarn end near the end of the package at the time of yarn breakage is guided to the center. Therefore, the number of yarn ends falling from the end of the package is reduced.

[0008]

【Example】

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

In FIG. 1, which shows the overall structure of the winder, 1 indicates a winding unit, and a yarn feeding bobbin 3 is rotatably supported in a standing state at a lower portion of a frame 2 of the unit 1, and A cradle arm 6 is rotatably supported by a cradle arm 6 to rotatably support a package 5, which rotates in contact with a cylindrical traverse drum 4 which is rotationally driven, and is pulled out from the yarn supplying bobbin 3 in an axially upper direction. The yarn Y runs while being ballooned, and is wound around the package 5 which is rotated at a constant speed by the drum 4 while being traversed left and right by the traverse groove 4a formed in the traverse drum 4. ..

Further, in the frame body 2, a tenser 7 for sandwiching the traveling yarn Y and applying a substantially constant tension to the yarn Y in the order of the traveling route of the yarn Y, and a defective portion such as a slab of the yarn Y is detected. A slab catcher 8 to be removed and a yarn joining device 9 for tying the yarn Y are provided. Further, the frame body 2 is provided with a suction mouth 10 that can search and pull out the yarn end on the package 5 side at the time of yarn splicing so as to be rotatable around the shaft 10a, and also search for the yarn end on the yarn supplying bobbin 3 side. A suction pipe 11 that is pulled out is provided so as to be rotatable around a shaft 11a. Furthermore, a drum cover 12 is attached to the frame body 2 so as to surround the end of the traverse drum 4, and a guide 13 is attached to the lower portion of the drum cover 12. Other conventional components are omitted in this embodiment.

As shown in FIGS. 2 and 3, a fan 14 is provided on the end surface of the traverse drum 4. The fan 14 is formed in a disk shape, a part of which is folded back at about 90 ° along the radial direction, and the center part of the folded back is appropriately bent in the rotation direction A of the drum 4 to form a blade portion. In the illustrated example, there are six 15 along the circumferential direction, and the rotation of the drum 4 causes the blades 15 to generate wind in the radial direction.

As shown in FIGS. 1, 2 and 4, a fan cover 16 is provided outside the fan 14, and the fan cover 16 is attached to the end of the drum cover 12. .. The fan cover 16 covers the end surfaces of the fan 14 and the traverse drum 4, and the end portion thereof is formed in a cylindrical shape, and the wind generated by the fan 14 passes between the drum 4 and the fan cover 16 and the shaft. You will be guided in direction B. Further, an air inlet 17 and an air inlet hole 19 are formed on the back surface of the fan cover 16, and a cutout portion is formed in the portion where the package 5 is located so as not to come into contact with the cradle arm 6. 18 is provided. The cutout is not required as long as the fan cover and the cradle arm do not come in contact with each other without providing the cutout.

Next, the operation of this embodiment will be described.

As shown in FIG. 1, the yarn Y drawn from the yarn supplying bobbin 3 travels while being applied with a tension which is almost constant by a tenser 7, and traverses left and right by a traverse groove 4 a of a traverse drum 4. While being shaken, it is wound up on a package 5 that rotates at a constant speed.

During this winding, the slab catcher 8 detects a defective portion such as a slab of the traveling yarn Y, and a cutter incorporated in the slab catcher 8 operates to forcibly cut the traveling yarn Y or the traveling yarn Y. If thread breakage occurs due to Y tension breakage, etc., winding will be stopped. At this time, the yarn end on the package side jumps out from the traverse groove 4a because no tension is applied, but the fan 14 is provided at the end of the traverse drum 4 and the fan cover 16 is provided outside thereof. Therefore, the drop from the end surface of the package 5 is reduced as compared with the conventional case.

That is, since the fan 14 is provided at the end of the traverse drum 4, when the traverse drum 4 rotates in the rotation direction A shown in FIG. 2, as shown in FIG. Air is sucked into the cover 16 from the suction port 17 of the fan cover 16 and the air inflow hole 19 by the blade portion 15, and is guided in the radial direction C. As a result, wind is generated in the radial direction C of the drum 4. At this time, since the center side of the blade portion 15 of the fan 14 is bent in the rotation direction A of the drum 4, more air is guided by the blade portion 15, so that the amount of generated wind increases.

The generated wind hits the fan cover 16 outside the fan 14, flows between the cover 16 and the drum 4 between D, and is guided in the axial direction B of the drum 4. As a result, wind blows on the package 5 in the axial direction B from the end to the center, so that the yarn end near the end of the package 5 at the time of yarn breakage is guided to the center and the end of the package 5 ends. The number of thread ends falling from the section is reduced.

Therefore, by providing the fan 14 at the end of the traverse drum 4 and the fan cover 16 on the outside of the fan 14, the rotation of the drum 4 produces a wind in the axial direction B, and this wind causes the package to move. Since the yarn end near the end of 5 is guided to the center thereof, the number of times the yarn end falls from the end of the package 5 is reduced. As a result, the yarn end on the package side is less likely to wind around the winding tube when the yarn is broken, as compared to the conventional case. Therefore, the package side yarn end can be exposed by the suction mouth 10, and the package side yarn end can be guided to the yarn joining device 9 for joining the yarn end on the yarn supplying side.

Further, the wind in the axial direction B generated by the rotation of the traverse drum 4 flows all around the drum 4, so that the drum 4 is cooled by the wind, so that the drum 4 is rotatably supported. It is also possible to cool the heat generated by the friction of the bearing (not shown) in the drum 4 and the package 5.

In addition, although the winder for producing the cheese-shaped package is described in the present embodiment, the winder for the cone-shaped package also has a fan on the small diameter side end of the traverse drum and a fan on the outside thereof. A fan cover may be provided. In the cone-shaped package, the yarn layer is inclined and the end face easily falls, but since the fan and the fan cover are provided, wind is generated in the axial direction of the traverse drum in the same manner as described above. The number of thread ends falling from the ends is reduced. For example, when a winder is operated with a fan on the small diameter side end of the traverse drum and a fan cover on the outside, the yarn breakage occurs 69 times and the number of times the yarn end falls from the end face of the package is 0 times. Met. On the other hand, when the attachment was not attached, the yarn was broken 121 times and the yarn end fell from the end face of the package 6 times.

Although the fan is provided at one end of the traverse drum and the fan cover is provided outside the traverse drum, a fan and a fan cover may be provided at both ends of the drum. In this way, the end face drop of the package can be reduced more effectively.

[0022]

In summary, according to the present invention, since the fan is provided at the end of the rotary drum and the cover for guiding the generated wind in the axial direction of the drum is provided outside the fan, the yarn end is provided. It has the excellent effect of reducing the end face drop.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a state where an end surface fall prevention device of the present invention is applied to a winding unit.

FIG. 2 is a perspective view of an essential part of FIG.

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

4 is a cross-sectional view of the main parts of FIG.

[Explanation of symbols]

 4 Traverse drum (rotary drum) 5 Package 14 Fan 16 Cover Y thread

Claims (1)

[Scope of utility model registration request] 1. A winder for winding a yarn while traversing a package rotating in contact with a rotary drum, and providing a fan for generating a radial wind at the end of the rotary drum, A winder end face drop prevention device, characterized in that a cover for guiding the generated wind in the axial direction of the drum is provided outside the fan.