JPH08188334A - Rotary blade type traverse device - Google Patents

Abstract

PURPOSE: To stop the sending out of a thread and prevent the twine of the thread around an instrument, when mis-delivery of the thread is generated between two rotary blades, or thread cut is generated in the downstream of a traverse device, in a rotary blade type traverse device for traversing by two rotary blades which are synchronized mutually in an opposite direction and rotated. CONSTITUTION: In a rotary blade type traverse device provided with two rotary blades 3, 4 which are synchronized mutually in an opposite direction and rotated, a thread sending out prevention device 7 is provided on the position beyond a traverse range while approaching to a traverse end part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary vane type traverse device which traverses by rotating rotary vanes which rotate in synchronism with each other when forming a yarn winding package.

[0002]

2. Description of the Related Art When a yarn is wound into a package, a traverse device is used to traverse the package in the axial direction. Conventionally, a groove cam mechanism is used as the traverse device, and the traverse is operated by the reciprocating movement of a traverse guide engaged with the groove cam. In this traverse device, an impact is generated at the turning point of the traverse guide, and the resulting noise is large, and there is a limit in smoothly performing high-speed winding of the yarn. Therefore, as a method for solving the drawback of the traverse device using such a groove cam mechanism, there is a method of reciprocating the yarn by using a traverse cam. However, the cam turning point of the yarn guided by the traverse cam In the above, when the yarn is reversed from one direction to the other, the traverse speed becomes zero, and it takes time to run at high speed immediately at the start of reversing, and again there is a limit to high-speed winding of the yarn. there were. Therefore, in order to further wind the yarn at high speed, a rotary vane type traverse device has been developed which traverses by rotary vanes that rotate in synchronization with each other in opposite directions.

In this rotary vane type traverse device, two bevel gears are provided on a concentric shaft so as to face each other, bevel gears that mesh with each other are arranged between both gears, and both gears are driven by a motor. Rotate at the same speed in the same direction, the shaft of one bevel gear is passed through the shaft of the other bevel gear, and the shaft ends of each shaft are 2-3
By fixing a single blade, the blades are synchronously rotated in opposite directions.The yarn traversed in one direction at the tip of one blade is rotated in the opposite direction at the other end of the traverse. The yarn traversing operation is performed by repeating the operation of delivering the yarn to the other side, traversing the yarn in the opposite direction, and delivering the yarn to the other side again at the other end of the traverse.

Further, in such a traverse device using two blades that are coaxial and rotate in opposite directions, it is difficult to smoothly transfer the yarn from one blade to the other blade at the turning point of the traverse. Therefore, the rotating shafts of the two blades are arranged eccentrically, and the one side blade that has traversed the yarn at one end of the traverse is gradually drawn in, while the other side rotating in the opposite direction at this part. The blades of the blade gradually receive the yarn and traverse in the opposite direction.At the other end of the traverse, the blade gradually retracts, and the blade of one side protrudes to receive the yarn, and again in the opposite direction. A traverse device has been proposed which repeats the operation of traversing.

[0005]

In the traverse device using the two rotary vanes rotating in the opposite directions as described above, the traverse mechanism is mechanically different from the conventional device using the groove cam mechanism. Since there is no reversal part, it produces low noise without generating impact and can support high-speed winding, but it surely works with two rotating blades that rotate in opposite directions at both ends of the traverse. It was difficult to deliver the yarn. In order to smoothly deliver such a yarn, even if measures are taken such as providing a protrusion for stopping the movement of the yarn in the guide portion of the yarn, or eccentrically rotating the two rotary blades as described above, If the yarn breaks between the traverse device and the package,
The thread tension drops extremely and the delivery function is lost.

In such a case, since the yarn on the upstream side of the traverse device is continuously fed out, the disengaged yarn is entangled with the peripheral equipment or the rotary blade and its shaft, so that many subsequent treatments are required. It takes time and means.

Therefore, in order to solve the above-mentioned problems of the prior art, the present invention relates to a rotary vane type traverse device which traverses by two rotary vanes rotating in synchronization with each other in opposite directions. When a yarn breakage occurs in the downstream side of the blade, it is stopped by the blade to push the yarn around the blade shaft toward the end of the traverse guide member and prevent the yarn from being entangled with surrounding equipment. With the goal.

[0008]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a rotary vane type traverse device having two rotary vanes which rotate in synchronization with each other in opposite directions in a traverse position outside the traverse range. A yarn sending-out preventing device is provided near the end.

[0009]

Since the present invention is constructed as described above, the two rotary vanes rotating in synchronization with each other in the opposite directions can pass the yarns to each other at the traverse end during steady operation. Do a traverse. When a yarn break occurs between the traverse device and the winding package, the yarn that is drawn in by the rotating vanes is prevented from being further fed out by the yarn feed-out prevention device when the yarn exceeds the traverse range, and the yarn is prevented from rotating. Does not get entangled with the surrounding equipment such as the shaft.

[0010]

Embodiments of the present invention will be described with reference to the drawings. 3 and 4 show the entire configuration of the rotary-blade type traverse device of the present invention, and FIG. 3 shows the blades rotated by the drive device shown in FIG. The operation of the traverse of the traverse device will be described.

Two rotating members are vertically stacked, the upper rotating member 1 in the drawing is a three-blade blade, and the lower rotating member 2 is two blades.
It is a single blade, and when the upper rotary member 1 is rotated twice by the drive device of FIG. 4 described later, the lower rotary member 2 is rotated three times. Therefore, the rotation number of the upper rotating member 1 is 600
If rpm is set, the rotation speed of the lower rotation member 2 is 900 rp
m. Further, the upper rotary member 1 and the lower rotary member 2 are eccentric with respect to their rotation axis centers by a distance ε.

The upper rotary member 1 is provided with three upper guide vanes 3 at positions where the circumference is divided by 120 °, and the lower rotary member 2 is provided with two upper guide blades 3 at positions where the circumference is divided by 180 °. The lower guide vane 4 is provided. That is, the ratio of the number of blades of the upper rotary member 1 and the number of blades of the lower rotary member 2 is the reciprocal ratio of the speed ratio of the two. Further, each guide vane is formed with inclined surfaces 3a and 4a for feeding the yarn Y.

A traverse guide member 5 is provided in a part of the rotation circumference of both rotary blades immediately above the upper rotary member 1, and the yarn Y is restricted by the arc surface 5a of the traverse guide member 5. Meanwhile, the guide blades 3 and 4 are carried by the inclined surfaces 3a and 4a. A groove 6 is formed on the arc surface 5a of the traverse guide member 5 on the outer side of the turning points a and b of the traverse of the yarn Y and inward in the radial direction in the vicinity of the turning points a and b. A thread end locking tool 7, which will be described later, is fixed to the upper surface of the traverse guide member 5 by means of a screw 8.

By the operation of the rotary blade and the action of the traverse guide member as described above, the lower guide blade 4 of the lower rotary member 2 having a high rotational speed rotates clockwise, and the slanting surface 4a causes the yarn Y to form an arc. Traverse to the left in the figure along the surface 5a. When the lower guide vane 4 reaches the turning point a, the upper rotary vane 3 rotating in synchronization with the lower guide vane rotates counterclockwise to reach the turning point a. At this time, since the lower guide blade is rotating around O ₁ , the turning point a
Reaches the arcuate surface 5a is retracted, since the upper guide vanes in the opposite rotating around the O _2, in the turning point a is rotated in a state of sufficiently protrude from the arcuate surface 5a,
As a result, the yarn Y moves from the inclined surface 4a of the lower guide blade 4 to
It is delivered to the inclined surface 3a of the upper rotary blade 3 and traversed to the right in the figure.

Similarly, when the upper rotary blade 3 reaches the turning point b, the upper rotary blade 3 is pulled in from the arc surface 5a,
On the contrary, since the lower rotary blade 4 is projected and rotated in the opposite direction, the yarn Y is passed from the inclined surface 3a of the upper guide blade 3 to the inclined surface 4a of the lower guide blade 4, and leftward in the figure. Be traversed to.

By repeating this operation, the yarn Y is traversed fast in the left direction in the drawing and slow in the right direction, and in the winding package, the traverse angles of the forward path and the backward path are formed differently, and the winding form becomes coarse and dense. Therefore, the package is prevented from being wound too hard and bulge formation is also prevented.

The rotary motion of the rotary blade as described above is shown in FIG.
The drive device shown in FIG. That is, the touch roller 11 is pressed against the package 12 to rotate, and the yarn Y is wound around the package 12. The lower rotary blade 4 and the upper rotary blade 3 of the touch roller 11 are inclined to the upper portion of the touch roller 11 as described above. It is installed to rotate in the opposite direction.

The upper rotary member 1 provided with the upper rotary vane 3 and the lower rotary member 2 provided with the lower rotary vane 4 are the box 1
The box 13 is rotatably supported by 3, and the box 13 is attached to the elevating frame together with the touch roller 11. The box 13 has a first housing 14 and a second housing 15, and a shaft 17 is supported inside the first housing 14 via a bearing 16. The rotary member 1 is fitted into the upper end of the shaft 17. The timing pulley 18 is fixed to the lower end of the shaft 17.

The lower rotary member 2 is supported outside the first housing 14 via a bearing 19, and the lower rotary member 2 is supported.
A gear 20 is fixed to the lower part of the. The central axis 19a of the bearing 16 is eccentric by a distance epsilon, eccentric distance epsilon, as shown in FIG. 3 with the center O ₂ of the center O ₁ and the upper rotary member 3 of the lower rotary member 2 by the bearing arrangement It's spinning.

A shaft 22 is supported inside the second housing 15 via a bearing 21, a gear 23 meshing with the gear 20 is provided in the box 13 of the shaft 22, and a timing belt 24 is provided outside the box 13 of the shaft 22. A timing pulley 25 and a drive pulley 26 are provided around which the drive pulley 26 is mounted.

Since the drive device for each rotary member is constructed as described above, assuming that the drive pulley 26 is rotating counterclockwise, the combination of the timing pulley 25, the timing belt 24, and the timing pulley 18 is also the same. It rotates counterclockwise, and the shaft 17, the upper rotation member 1 and the upper guide member 3 rotate counterclockwise. Meanwhile, the gear 23
The rotation direction is reversed by the combination of the gear 20 and the gear 20, and the lower rotation member 2 rotates clockwise. At this time, when the upper rotary member 1 makes two revolutions by adjusting the gear ratio by the timing pulley 25 and the gear gear ratio, the lower rotary member 2 is made to make three revolutions to perform the traverse operation by the rotary vanes as described above. I am letting you.

On the other hand, the circular arc surface 5a of the traverse guide member 5
As shown in FIG. 1, a thread end locking member 7 as a hand feed preventing device is fixed to the upper surface of the traverse guide member 5 by a screw 8 in the groove 6 provided outside both of the turning points a and b. There is. A part of the blade 7 projects into the groove 6, and a slit 32 that opens toward the opening 31 side of the groove 6 is formed in the protruding portion 30.
On the opening side, a guide surface 33 is formed so as to smoothly guide the yarn reaching the opening along the arc surface 5a into the slit 32.

In the yarn end locking device 7, the yarn Y is in the range of the turning points a and b of the circular arc surface 5a as shown in FIG. There is no, so it has no effect. However, as shown in FIG. 2, for example, at the turning point a, the yarn Y carried on the inclined surface 4a of the lower rotary blade 4 is not delivered to the inclined surface 3a of the upper rotary blade 3 due to vibration of the yarn or the like. When a yarn breakage occurs between the traverse device and the winding package, the yarn is fed to the lower rotary blade 4
Is carried as it is, and the yarn Y tries to be drawn inside.

At this time, the yarn Y moves from the turning point a over the traverse range to the outside of the range on the arc surface 5a,
Attempt to enter the groove 6 of the arc surface 5a. This thread is guided by the guide surface 33 of the slit 32 of the thread end locking tool 7 provided at the opening of the groove 6 and enters the slit 32. Since this slit is formed fine enough, the yarn Y that has entered the slit 32 receives a large resistance, and the yarn hanging on the inclined surface 3a is pulled out from the upper rotary blade 3 along the inclined surface. , Or its large resistance cuts the yarn and prevents the yarn from being further drawn and entangled with the shaft of the rotating blade or the surrounding equipment. The above-described action also acts on the other side of the arc surface 5a at the turning point b.

As a device for preventing the yarn from being fed out when a yarn delivery error occurs between the rotating blades, the yarn end locking device is used, and as shown in FIG. A friction applying member 34 having a large friction, such as a brush or sandpaper, may be provided on a portion of the folding point a outside the traverse range on a surface substantially perpendicular to the running direction of the yarn.
This prevents the yarn, which is about to be fed by the rotary blade due to the yarn delivery error, from being fed by the large frictional force of the friction imparting member 34.

As shown in FIG. 6, for example, as a yarn sending-out preventing device, a high pressure air is blown from the center side of the rotary vane toward the tip end on the upper surface side of the rotary vane at a position outside the traverse range of the turning points a and b. Air nozzle 35 for injecting
36 is arranged, and high-pressure air is jetted from the air nozzles 35 and 36 in synchronization with the time when the rotary blades are rotated to this position.
As a result, the yarn, which is about to be fed by the rotary blade due to a yarn delivery error, is removed from the rotary member by the high pressure air from the air nozzle and is not fed.

As the yarn feeding prevention device, as shown in FIG. 7, brushes 37 and 38 are provided on the upper surface side of the rotary blade at positions outside the traverse range of the folding points a and b so as to contact the upper surface of the rotary blade. Deploy. As a result, the yarn, which is about to be fed by the rotary blade due to a delivery mistake of the yarn, is stopped by the brush and removed from the rotary blade, so that it is not fed any more. The yarn feeding prevention device of the present invention is not limited to the embodiment, and various means can be adopted.

[0028]

Since the present invention is constructed and operates as described above, in a rotary vane type traverse device that traverses by two rotary vanes that rotate in synchronization with each other in opposite directions, a space between two rotary vanes is provided. If a yarn delivery error occurs in the machine, or if a yarn breakage occurs between the traverse device and the winding package, the yarn delivery is stopped, which causes the delivered yarn to move to the axis of the rotary blade or the surrounding equipment. It can be surely prevented from being entangled with.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a first embodiment of the present invention during steady traverse.

FIG. 2 is a perspective view of a main part when the yarn delivery error occurs.

FIG. 3 is a plan view of the traverse device.

FIG. 4 is a cross-sectional view of a rotary blade drive device of the traverse device.

FIG. 5 is a perspective view of essential parts of a second embodiment of the present invention.

FIG. 6 is a perspective view of a main part of a third embodiment of the present invention.

FIG. 7 is a perspective view of a main part of a fourth embodiment of the present invention.

[Explanation of symbols]

 1 Upper Rotating Member 2 Lower Rotating Member 3 Upper Guide Blade 4 Lower Guide Blade 5 Traverse Guide Member 5a Arc Surface 6 Groove 7 Thread End Locking Tool 8 Screw 11 Touch Roller 12 Package 13 Box 14 First Housing 15 Second Housing 18 Timing Pulley 20 Gear 23 Gear 24 Timing Belt 25 Timing Pulley 26 Drive Pulley 30 Projection Part 31 Opening 32 Slit

Claims (5)

[Claims] 1. A rotary vane type traverse device having two rotary vanes that rotate in synchronization with each other in opposite directions, wherein a yarn feeding prevention device is provided at a position outside the traverse range, close to the traverse end. Rotating blade type traverse device. 2. The rotary vane type traverse device according to claim 1, wherein the yarn feeding-out preventing device is a yarn end locking tool. 3. The rotary vane type traverse device according to claim 1, wherein the yarn feed-out preventing device is a friction imparting member that imparts frictional resistance to the yarn. 4. The rotary-blade type traverse device according to claim 1, wherein the yarn feed-out prevention device is an air nozzle for removing the yarn hooked on the blade with high-pressure air. 5. The rotary-blade type traverse device according to claim 1, wherein the yarn feed-out preventing device is a brush that blows out the yarn hooked on the blade.