JPH01220679A - Traverse motion - Google Patents

Abstract

PURPOSE:To keep a yarn guide in the fixed direction and to wind a package at high speed by engaging a sliding supporting point of a guide arm with a grooved cam formed to be loosely S-shaped in the traverse direction, and fixing the yarnguide to the guide arm through a holder extended intersecting a straight line connecting the rotation supporting point and the sliding supporting point. CONSTITUTION:A rotary plate is rotatably mounted on the shaft center of a fixed gear, and a gear is rotatably supported at a position on the rotary plate at a distance of about a quarter of traverse stroke from the center of rotation of the rotary plate. These gears are meshed with each other through an idle gear, and the ratio is let be 2:1. An arm fixed to the gear on the rotary plate has a turning supporting point at the distance substantially equal to a quarter of a traverse stroke from the center of rotation of the gear. A sliding supporting point 35 of a guide arm 17 rotatably supported on the above rotating supporting point is engaged with a S-shaped grooved cam 36a, and a yarn guide 30 is fixed to the guide arm 17 through a holder 32 intersecting a straight line connecting the above supporting points.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a traversing device in a winding machine that continuously winds yarn to form a package.

In particular, the present invention relates to a traversing device for obtaining a good winding shape of a yarn package.

[Conventional technology]

The continuously supplied yarn is usually wound as a package onto a bobbin while being traversed by a traverse device.

Conventionally, as a traverse device, as described in Japanese Patent Application Laid-Open No. 60-167855, a slider is engaged with a spiral groove formed on the outer periphery of a cylinder, and a traverse guide fixed to the slider is reciprocated. A combination of several stroke lengths, or a slider that is engaged with a spiral groove formed on the outer periphery of a cylinder as described in Japanese Patent Application Laid-open No. 60-67363, and an L-shaped arm is engaged with the slider. There was also a system in which the stroke was changed by swinging the cross-shaped arm.

[Problem to be solved by the invention]

However, in the method described in JP-A-60-167855, since the types of strokes formed on the cylindrical cam are limited, there is a problem that the stack of yarn at the end of the package is reduced and twill comes off. there were.

On the other hand, the device described in JP-A No. 60-67363 reciprocates a large-mass L-shaped guide at high speed, and uses the inertia of this L-shaped guide to engage and slide a slider that engages with a groove of a cylindrical cam. As a result, the life of the cylindrical cam groove and the slider is shortened, and in addition, the position of the traverse end fluctuates due to play between the groove and the slider, causing the package to come off the traverse.

The present invention has been made to solve these conventional problems, and provides a traversing device that has no protrusions on the end face, has uniform hardness, can wind up packages without coming off the twill at high speed, and has a long life. is intended to provide.

[Means to solve the problem]

The principle of the yarn traversing device of the present invention is that a gear 11 is fixedly installed as shown in FIG. Approximately 1/4 of the traverse stroke of the traverse device from the rotation center A of 2
A gear 14 is rotatably supported at a position on the rotary plate 2 separated by a distance of An arm 15 is integrally fixed to a gear 14 supported on the rotating plate 2.

Furthermore, the arm 15 has a rotation fulcrum 17a at a position C spaced apart from the rotation center of the gear by a distance approximately equal to 1/4 of the traverse stroke.

A guide arm 17 is rotatably supported on a rotation fulcrum 17a, and as shown in FIG. 10, the guide arm 17 has a sliding fulcrum 35 near the rotation fulcrum 17a.
A yarn guide 3o is attached to the guide arm 17 via a holder 32 that extends across a straight line connecting the fulcrum and the sliding fulcrum 35.

The sliding fulcrum 35 engages with a grooved cam 36a having a loose S-shape in the traverse direction, or engages with a grooved cam 36a arranged to be swingable around the rotation center A of the rotary plate 2. engaged.

[Effect]

In the present invention, a rotary plate 2 is rotatably disposed around an axis A of a fixed gear 11 that is fixedly installed, a gear 14 is rotatably supported on the rotary plate 2, and the fixed tooth Ts
, 11 and the gear 14 are in mesh with each other via an idle gear 26 rotatably supported on the rotating plate 2. Therefore, when the rotary plate 2 is rotated, for example, counterclockwise around the fixed gear 11, the idle gear 26 rotates around the fixed gear 11 in the same direction as the rotating direction of the rotary plate 2, and the idle gear The gear 14 meshing with the idle gear 26 is in the opposite direction,
That is, it rotates clockwise in the opposite direction to the rotating plate 2.

Further, since the gear ratio between the fixed gear 11 and the gear 14 is 2:1, the tooth l114 rotates by an angle twice the rotation angle of the rotary plate 2.

Therefore, assuming that the distance from the rotation center A of the rotating plate 2 to the rotation center B of the gear 14 is 1, the arm 15 is integrally attached to the gear 14, and the motion trajectory of a point C at a distance J from the rotation center B of the gear 14 Looking at ΔABC is an isosceles triangle, and <A
Since the exterior angle of BC is < twice BAC, the base A
C is always on a constant straight line. That is, point C is
As shown in FIGS. 12(a) to 12(f), it moves in a straight line, and its stroke is 4J.

However, when the traversing yarn guide is directly connected to point C, the direction of the yarn guide varies greatly depending on the orientation of the arm 15, and the traversing speed is also not uniform.

Therefore, the point C is set as a pivot point, and the guide arm is rotatably supported on the pivot point, and the pivot point is set at the alley l11.
The sliding position is set as a sliding fulcrum, and the sliding fulcrum is engaged with a grooved cam having a loose S-shape, and the sliding fulcrum is guided through a holder that extends across a straight line connecting the rotation fulcrum and the sliding fulcrum. By attaching the thread guide to the arm (the arm, sliding fulcrum, and thread guide form an L-shape), as shown in Figure 9(a), the direction of the thread guide can be moved without greatly changing.
It can be guided in a nearly straight line and can be moved at a constant speed. Furthermore, by attaching the yarn guide via the holder, the yarn guide can be positioned close to the yarn package or the circumferential surface of the contact roller, and yarn shaking during traversing can be reduced.

Incidentally, by pivoting the arm 15 and the yarn guide at the above point C position and moving the yarn guide along a linear guide, fluctuations in the direction of the yarn guide can be prevented; The end of the yarn package tends to be at the selvage height due to the unevenness of the yarn at the turn-back position of the traverse. As a countermeasure for this, a sliding fulcrum provided near the point C position is engaged with a grooved cam that is swingably disposed around the center of the rotary plate to disperse the yarn winding positions. It is also possible to prevent ear height.

Furthermore, as shown in the embodiment, the above-mentioned measures against rain may be realized at the same time.

〔Example〕

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

FIG. 1 is a front view of the traversing device according to the present invention for traversing two threads with covers 42 and 43 removed. A part of the member is cut out in the same way as when cutting along the line B-B. Second
The figure is a sectional view taken along line A-A in Figure 1, and Figure 3 is a cross-sectional view taken along line C-A of Figure 1.
4 is a sectional view taken along line DD in FIG. 1, and FIG. 5 is a sectional view taken along line EE in FIG. 2.

In FIG. 1, a frame 1 has a box shape. Second
As shown in the figure, a rotary plate 2 consisting of a disk and a cylinder connected thereto is rotatably supported on the frame 1 by bearings 6.7. The rotary plate 2 is shown in the shape of a single-letter lever in FIG. 11, but in the embodiment, it is shaped like a disk for ease of manufacture.

A fixed shaft 3 is inserted through the hollow part of the rotary plate 2 and a bearing 8.
9 and is secured by a key 33. Note that the rotation stopper 4 is fixed to the frame 1 by a port 4a.

The timing pulley 5 is fixed to the cylindrical portion of the rotary plate 2 by a key 34, and a nut 10 is screwed to the left end of the cylindrical portion of the rotary plate 2.

In the second cause, a gear 11 is attached to a key 12 at the right end of the fixed shaft 3.
It is integrally fixed by. Therefore, the gear 11 is fixed to the frame 1 through the fixed shaft 3 and the rotation stopper 4 so as not to rotate.

The tiff of the traversing device is
A small hole is formed at a distance of 1 m, which is about 1/4 of the i-lift row, and a distance f apart, and the bottle 13 is inserted through this small hole.
A nut 13a is screwed into the base of the rotary plate 2, and the nut 13a is fixed to the rotary plate 2 so as not to rotate.

1m! 14 connects to the bottle 13 via a needle bearing 16
is rotatably supported. Note that the number of teeth of the gear 14 is set to 1/2 of the number of teeth of the fixed gear 11.

An arm 15 is attached integrally to the gear 14. A press plate 20 is applied to the bottle 13 from the outside of the arm 15,
The arm 15, which is fixed to the bottle 13 with a bolt 20a and integrally formed with the gear 14, is prevented from coming off in the axial direction.

On the opposite side of the arm 15 from the pin 13 support (see FIG. 2), a third
As shown in the figure, a shaft portion 17a of the bottle 17 is rotatably supported via a needle bearing 19.

As shown in FIG. 10, the bottle 17 consists of a shaft portion 17a that protrudes from the main body to the back surface, and a cam follower 35 that is rotatably supported on the front surface side at a position a short distance away from the shaft portion 17a as will be described later. A notch 17C is formed between the shaft portion 17a and the cam follower 35, and the holder 32 is fitted into this notch 17C. The tip of the holder 32 is slightly bent, and the yarn guide 30 is attached to the tip. Note that the tip of the holder 32 may remain straight.

As shown in FIG. 3, a presser plate 21 is fixed to the tip of the shaft portion 17a of the bottle 17 with a bolt 21a to prevent the bottle 17 from coming off the arm 15 in the axial direction.

As shown in the second section, the cam follower 35 is rotatably attached to the shaft portion 17b of the bin 17 via the needle bearing 18 as described above.

A holding plate 22 is attached to a bolt 22a at the tip of the shaft portion 17b of the bottle 17.
This prevents the cam follower 35 from coming off in the axial direction.

The cam follower 35 engages with a groove 36a formed in the cam 36. As shown in FIG. 8, the groove 36a of the cam 36 has a loose S-shape that is elongated in the traverse direction.

As shown in FIGS. 1 and 2, the cam 36 is fixed to the fulcrum 23 by a bolt 23a, and the fulcrum 23 is attached to the bracket 2.
4 is swingably attached.

The bracket 24 is fixed to the frame 1 by bolts 24a, and serves as the pivot point of the fulcrum 23.

As shown in FIG. 5, an idle gear 26 is rotatably supported on the rotating plate 2 and meshes with the gears 11.14. That is, as shown in FIG.
It is fixed to the rotary plate 2 by. At the tip of bottle 25,
An idle gear 26 is rotatably supported by a needle bearing 27. A press plate 28 is fixed to the tip of the bin 25 by a bolt 28a, and the idle gear 28 is prevented from moving in the axial direction.

As mentioned above, the holder 32 is attached to the bottle 17 and fixed with the bolt 32b (see FIG. 3). A hole 32a is formed at the tip of the holder 32, and a holder 29 with a yarn guide 30 is attached to this hole 32. In this embodiment, the holder 29 is made of resin such as nylon.

The yarn guide 30 is made of porcelain and has grooves 308 formed therein to regulate the yarn.

The fluid pressure cylinder 31 swings the cam 36 during yarn winding. Rod 31a of fluid pressure cylinder 31
The joint 37 is fixed to the pin 38, the joint 3
9, is connected to the cam 36 via a pin 40 (see FIG. 8). As described above, the cam 36 is swingably supported at the fulcrum 23, and by actuating the hydraulic cylinder 31, the cam 36 is swung around the fulcrum 23.

In FIG. 2, the cover 41 is attached to the rotating plate 3 by bolts 41a.
It is fastened by. In addition, the covers 42 and 43 cover the front of the case 1 and prevent the yarn from wrapping around the rotating arm and preventing wind from entering.
A slit S with a small gap is formed between the yarn guides 3 and 3 so that the yarn guide 30 can move in the left-right direction.

A motor 44 is attached to the frame 1 on the right side of FIG. 1 by bolts 44a. A timing pulley 45 is fixed to the shaft of the motor 44. A timing pulley 46 is rotatably supported on the left side of the frame 1 by a pin via a bearing (not shown). Further, a timing pulley 47 is similarly supported by the frame 1. The timing belt 48 is the timing pulley 45
．． 46, 47 and the timing pulley 5.

The stopper 49 shown in FIG. 1 engages the cam 36,
The attachment position is adjusted and set so that the yarn guide 30 reciprocates through a predetermined stroke.

In FIG. 2, reference numeral 50 is a collar, 51 is a distance piece, 52a, 52b and 53 are retaining rings, 54 is a cover, and 54a is a bolt.

The operation of the traversing device having the above configuration will be explained below.

During yarn winding, the motor 44 (FIG. 1) is rotated counterclockwise in FIG. Timing belt 4 wrapped around
8 to rotate the rotating plate 2 together with the timing pulley 5 in the clockwise direction in FIG. In addition, during winding, motor 4
It is preferable to change the traversing speed by varying the number of revolutions of No. 4 with a predetermined amplitude and period to prevent the formation of a traverse.

When the rotary plate 2 rotates clockwise, the bin 25 fixed to the rotary plate 2 rotates clockwise around the axis of the rotary plate 2, and the idle gear 26 rotatably supported by the bin 25 rotates.
is rotated clockwise by meshing with the gear 11 that is non-rotatably supported, and the teeth 111 meshing with the idle gear 26.
4 (gear ratio of gear 11 and gear 14: 2:1) is rotary plate 2
is rotated counterclockwise around the bin 1j fixed to the fixed tooth l! 11 and teeth! 14 has a gear ratio of 2:1, so the gear 14 rotates by an angle twice the rotation angle of the rotating plate 2.

Therefore, as described above, the shaft portion 17a of the bottle 17 reciprocates in the left-right direction on the Xll shown in FIG. 1, and its stroke is 4J.

The cam follower 35 that engages with the groove 36a of the cam 36 reciprocates while rotating within the groove 36a. Note that since the groove 36a has a gentle S-shape that is elongated in the traverse direction,
When the yarn guide 3o fixed to the tip of the holder 32 attached to the bin 17 reciprocates, the 91st m(a)
As shown in , the object moves at a nearly uniform speed and does not change its direction significantly.

During yarn winding, an electromagnetic switching valve (not shown) is activated by a signal programmed into the computer in advance, supplying compressed air to the air cylinder 31, and the cam 36 moves at a predetermined speed in the direction of the 151st Y arrow. be done. After the cam 36 has moved a predetermined amount, it is returned to its original position at a predetermined speed.

Therefore, as shown in No. 99 (b), the groove 3 of the cam 36
The position of the cam follower 35 that engages with the shaft 68 changes, the distance that the yarn guide 30 swings around the axis 17a of the bin 17 changes, and the stroke becomes shorter than the predetermined stroke. This is repeated continuously or intermittently.As a result, the yarn retention at the folded portion of the traverse is dispersed.

The above explanation is about a method of changing the stroke during winding, as shown in the traverse stroke diagram shown in FIG. However, as shown in FIG. 7, the winding width can also be gradually changed as the winding becomes thicker. According to this method, it is possible to prevent twill slip-off even when winding yarn that is prone to twill slip-off.

In this embodiment, the cam is oscillated by a fluid pressure cylinder to change the traverse stroke, but the cam may be oscillated by a driving means such as a stepping motor or a servo motor.

Honjitsu FM @ also explained a traverse device that winds up two packages by attaching two bobbins to a bobbin holder, but the present invention relates to a device that winds one or three or more packages. can also be implemented.

〔Effect of the invention〕

According to the traversing device according to the present invention, since the impact of the traverse folding portion can be received by a bearing having high rigidity, it is possible to obtain a traversing device that has a long life even at high speeds.

In the device of the present invention, each movable part can be configured with a bearing, so it is possible to minimize the gap between each member, and it is possible to obtain a package that does not come off the twill.

In the device of the present invention, a traversing stroke approximately four times the rotation radius of the rotating plate can be obtained, and the device is relatively compact.

Further, during winding, the traverse width of the package can be made shorter than a predetermined stroke, so that a package with a good rolled shape and no edge height can be obtained.

Furthermore, according to the device of the present invention, the winding width can be gradually reduced according to the winding thickness of the package, so that it is possible to gradually reduce the winding width according to the winding thickness of the package. Even during winding, it is possible to obtain a package that does not come off the twill.

[Brief explanation of the drawing]

Fig. 1 is a front view of the traversing device of the present invention, Fig. 2 is a cross-sectional view taken along the line A-A in Fig. 1, Fig. 3 is a cross-sectional view taken along the line C-C of the first section, and Fig.
The figure is a cross-sectional view taken along the line DD in FIG. 1, FIG. 5 is a cross-sectional view taken along the line E-E in FIG. 2, and FIGS. Figure 8 is a front view of the cam, Figure 9 (a) (b)
) is a diagram showing the operation of the device of the present invention, FIG. 10 is a perspective view of a bottle, FIG. 11 is a plan view for explaining the present invention in detail, and FIGS. 12(a) to (f) are diagrams showing the operation of the device of the present invention. FIG. 1 is a diagram illustrating the operation of the device in chronological order. 2...Rotating plate, 5...Timing pulley, 11.14...Gear, 17...Bin, 26...
・Idle gear, 30... Yarn guide, 31...
Fluid pressure cylinder, 35... cam follower, 36... cam, 36a...
・Groove cam, 44...Motor, 45.46.47.
...Timing pulley, 48...Timing belt.

Claims (1)

[Claims] 1. A gear is fixedly installed, a rotary plate is arranged to be rotatable around the axis of the fixed gear, and a distance of approximately 1/4 of the traverse stroke from the rotation center of the rotary plate. A gear is rotatably supported at a position on a separate rotary plate, the fixed gear and this gear have a gear ratio of 2:1 and mesh with each other via an idle gear, and an arm is attached to the gear. The arm is fixed at a distance of 1/1 of the traverse stroke from the center of rotation of the gear.
4, a guide arm is rotatably supported on the pivot point, and the guide arm slides a small distance away from the pivot point. It has a fulcrum, the sliding fulcrum engages with the grooved cam,
A yarn guide is attached to the guide arm via a holder that extends across a straight line connecting the rotation fulcrum and the sliding fulcrum, and the grooved cam has a loose S-shape in the traverse direction. A traversing device characterized by: 2. A gear is fixedly installed, a rotary plate is arranged to be rotatable around the axis of the fixed gear, and a rotary plate is placed on the rotary plate at a distance of approximately 1/4 of the traverse stroke from the rotation center of the rotary plate. A gear is rotatably supported at the position, and the fixed gear and the gear have a gear ratio of 2:1 and mesh with each other via an idle gear, and an arm is fixed to the gear, and the arm is fixed to the gear. is 1/1 of the traverse stroke from the rotation center of the gear
It has a sliding fulcrum at a position separated by a distance approximately equal to the distance of 4, and is provided with a traverse guide, and the sliding fulcrum is engaged with a grooved cam that is swingably disposed around the center of the rotary plate. A traversing device characterized in that the grooved cam is connected to a swinging member. 3. A gear is fixedly installed, a rotary plate is arranged to be rotatable around the axis of the fixed gear, and a rotary plate is placed on the rotary plate at a distance of approximately 1/4 of the traverse stroke from the rotation center of the rotary plate. A gear is rotatably supported at the position, and the fixed gear and the gear have a gear ratio of 2:1 and mesh with each other via an idle gear, and an arm is fixed to the gear, and the arm is fixed to the gear. is 1/1 of the traverse stroke from the rotation center of the gear
4, a guide arm is rotatably supported on the pivot point, and the guide arm slides a small distance away from the pivot point. It has a fulcrum, and the sliding fulcrum engages with a grooved cam that is swingably disposed around the center of the rotary plate, and intersects a straight line connecting the rotation fulcrum and the sliding fulcrum. A yarn guide is attached to the guide arm via an extending holder, and the grooved cam has a loose S-shape in the traverse direction and is connected to a swinging member. Shaking device.