JP2000198621A - Traversing device of automatic winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove the winding of threads at the edge of a traverse owing to the reversed rotation of a belt traversing device interlocked with the reversed rotation of a drum during notching. SOLUTION: A clutch device is provided between a transmission mechanism 10 and a traverse mechanism. The clutch device is cut off to shut out power to the traverse mechanism when a drum rotates in reverse during notching. The clutch device is composed of an output gear 15 to bury a ball 15a and a ball clutch consisting of a clutch plate 14 with the same number of clutch holes 14b to which the ball is fitted. The transmission mechanism and the traverse mechanism can be connected only when they are in the prescribed phase.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt traverse device used for an automatic winder for winding a yarn, and more particularly, to a reverse rotation preventing mechanism for a belt traverse device accompanying a drum reverse operation at the time of knotting. It is about.

[0002]

2. Description of the Related Art Generally, an automatic winder for winding a yarn to form a package is composed of a yarn winding device and a yarn traversing device, and is driven by a driving force applied from a driving source such as a motor. The package is formed by rewinding the yarn around a paper tube or the like by a winding device while reciprocating (traverse) the yarn left and right by a traverse device. At the time of knotting, it is necessary to reversely rotate the drum of the winding device in order to catch the yarn wound by the drum, but the drum and the belt traverse device are interlocked via gears, belts and the like. For this reason, the belt traverse device was also rotated in reverse in synchronization with this.

[0003]

In the above-mentioned prior art, when the belt traverse device is rotated in the reverse direction, the upper yarn captured by the upper yarn suction member (suction mouth) or the like is pulled out of the package and passed over the yarn joining device. However, there is a problem that the traversing device winds the drawn upper thread. The belt traverse device rotates in opposite directions to each other.
A traverse guide is attached to each position on the circumference of the belt of the book, and at both left and right positions of the traverse width, the yarn is transferred from one guide to the other guide to ensure smooth and reciprocating movement of the yarn. Has been realized.
When the belt traverse device rotates in the reverse direction, the positions of the traverse guide on the traverse end side and the traverse guide on the receiving side are reversed, and as a result, the yarn for forward rotation assisting the yarn transfer between the traverse guides In some cases, the removal guide did not function, and the yarn was entangled at the end of the traverse. In order to prevent the yarn from being entangled, the traverse guide was made to have a different shape on the left and right, and a yarn removal guide that works in the case of reverse rotation was also added. At the time of unwinding, the tension of the yarn may be small, and the winding has not been completely eliminated.

[0004]

The above is the problem to be solved by the present invention. Next, means for solving the problem will be described. That is, in the automatic winder, a clutch device is interposed between the drive source and the traverse mechanism, and the power transmission to the traverse mechanism is cut off by cutting the clutch device when knotting the yarn. did.

Also, in an automatic winder, a clutch device is interposed between a drive source and a traverse mechanism, and the clutch device can be connected only in a set phase. And the reciprocating motion of.

Further, the clutch device is constituted by a ball clutch comprising an output gear having a plurality of balls embedded therein and a clutch plate having a plurality of clutch holes, and the output gear and the clutch plate are engaged only in a set phase. It was configured as follows.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is an overall perspective view of an automatic winder unit, FIG. 2 is a schematic diagram of a winding device, a transmission mechanism, and a traverse mechanism, FIG. 3 is a schematic plan view of a traverse mechanism, FIG. 5 is a plan view of a rotary plate serving as a clutch plate, FIG. 6 is a plan view of an output gear, FIG. 7 is a side view showing a clutch mechanism, and FIG. 8 is a cross-sectional view of a clutch mechanism for cheese winding.

First, the overall configuration of the automatic winder according to the present invention will be described with reference to FIG. FIG. 1 shows the entire configuration of an automatic winder 50 incorporating a belt traverse device T according to the present invention.
No. 0 causes the yarn S unwound from the yarn supply package 60 to follow the guide 57 and then rewind to the tapered paper tube Q rotated and driven by the drum 6. At this time, the yarn S is traversed right and left by the traverse device T while increasing and decreasing the speed at a constant period optimal for forming the cone-wound package. During the winding operation, the yarn defect detector 53 monitors the presence or absence of a yarn defect in the yarn S, and the tensor 56 adjusts the tension of the yarn S.

When the yarn defect detector 53 detects any defect or abnormality in the yarn S, the driving of the drum 6 by the motor 2 is stopped, and the yarn S is detected by a cutter provided in the yarn defect detector 53. Disconnect. Cut thread S
The lower thread suction port 5 which is always sucking
Suctioned at 5. On the other hand, the winding side portion (upper yarn) of the cut yarn S is wound up by the drum 6 that rotates by inertia. Subsequently, the drum 6 is rotated in the reverse direction to slightly feed out the yarn S, and at the same time, the upper yarn suction member 58 is swung upward to capture the upper yarn. On the other hand, the lower thread suction member 54 is turned downward to catch the lower thread sucked by the lower thread suction port 55, and then is turned upward again to guide the captured lower thread to the yarn joining device 52. . In this manner, the connection is made by the swirling air flow in the yarn joining device 52. After completing the yarn joining process,
The rotation of the motor 2 in the forward direction (winding direction) is started to start the yarn S.
Is restarted.

Next, as an embodiment in which a belt traverse device T (hereinafter, referred to as a traverse device T) according to the present invention is applied to a winding device A for winding a yarn S into a package P, FIGS. This will be described with reference to FIG.

In FIG. 2, a winding device A includes a driving source such as a motor 2, a pulley 5 to which a driving force is transmitted via a belt 4 from a pulley 3 fixed to a driving shaft 2a of the motor 2, and a peripheral portion of a package P. A friction drum 6 (hereinafter, simply referred to as a drum 6) in contact with a surface and having the pulley 5 fixed to a rotating shaft 6a is provided. Near the left and right end portions of the surface of the drum 6, guide grooves 7.7 are formed in a part in the circumferential direction for preventing the yarn from falling.

The driving force of the motor 2 is transmitted to the drum 6 via the pulley 3, the belt 4, and the pulley 5, and the drum 6 gives a rotational driving force to the package P, and the taper paper tube Q
The core is wound around the yarn S.

The mechanism by which the driving force of the motor 2 is transmitted to the traverse device T is as follows. Traverse device T
The transmission comprises a transmission mechanism 10 according to the present invention and a traverse mechanism 20 connected thereto. The rotational driving force of the motor 2 is first input to the transmission mechanism 10. That is, a gear a connected to the rotating shaft 6a of the drum 6, a gear b meshing with the gear a (in this example, the gears a and b are bevel gears), and
The power is transmitted to the input gear 13 of the transmission mechanism 10 via the gear c coaxially connected to the gear b. When the input side gear 13 is driven to rotate, the output gear 15 is rotated at a predetermined speed change cycle by a speed change mechanism described later, and the rotating driving force at which the speed is changed is transmitted to the gear d meshing with the output gear 15, and the gears d1, d2. Is transmitted to the traverse mechanism 20 via the

The traverse mechanism 20 is provided for vertically moving the traverse belts 21 and 22 provided with the traverse guides 40 for retaining the yarn S in parallel to the upper and lower sides, respectively. In addition to belts 21 and 22, timing belts 24 and 25, pulleys 27 to 34, and gears e and f are provided.

The upper traverse belt 21 has a pulley 30
31 and the lower traverse belt 22 is stretched between the pulleys 29 and 32. A pulley 17 is coaxially fixed to the input gear d3 of the traverse mechanism 20 that meshes with the output gear d2 of the transmission mechanism 10, and a timing belt 24 is stretched between the pulleys 17, 27, and 28. Further, the timing belt 25 is provided with pulleys 33.3.
It is stretched between four.

The pulley 27 coaxially arranged and the gear e are configured to rotate integrally, and the pulleys 28, 29 and 30 coaxially arranged are the pulleys 28 and 3 among these.
And the pulley 29 rotates freely with respect to these. Similarly, among the pulleys 31, 32, and 33 of the coaxial arrangement, the pulleys 32 and 33 rotate integrally, and the pulley 31 freely rotates with respect to these. The pulley 2 having a coaxial arrangement
The pulleys 8, 29 and 30 are detachably assembled by a boss 41, and the pulleys 31, 32 and 33 of the coaxial arrangement are detachably assembled by a boss 42. Further, the pulley 34 and the gear f arranged coaxially rotate integrally, and the gear e and the gear f are meshed with each other to be interlocked.

FIG. 3 shows a schematic configuration of the traverse mechanism 20 in a plan view. In FIG. 3, tension pulleys 36 to 39 not shown in FIG. 2 are added. The tension pulley 36 is
28 for adjusting the tension of the timing belt 24 stretched between
The tension pulley 37 is for adjusting the tension of the timing belt 25 stretched between the pulleys 33 and 34, and the tension pulley 38 is for adjusting the tension of the upper traverse belt 21.
The tension pulley 39 is connected to the lower traverse belt 22.
This is for adjusting the tension.

The rotational driving force output from the output gear d2 of the transmission mechanism 10 is transmitted to the pulley 17 via the input gear d3.
Is transmitted to Thus, the timing belt 24 stretched between the pulleys 17, 27, and 28 is driven. The pulley 28 rotates the pulley 30 connected coaxially, and drives the traverse belt 21 stretched between the pulleys 30 and 31 in the direction of arrow F1 (see FIG. 3).

On the other hand, when the pulley 27 is driven to rotate, the gear e coaxially connected to the pulley 27 rotates, and the gear f meshing with the gear e rotates in the opposite direction. Thereby, the pulley 34 connected coaxially rotates, and the pulley 33 rotates through the timing belt 25. As a result, the pulley 32 coaxially and integrally connected thereto rotates, and the pulley 29
Driving the traverse belt 22 stretched between 32 in the direction opposite to the traverse belt 21 (the direction of arrow F2 in FIG. 3).

With this mechanism, the upper and lower traverse belts 21 and 22 move in opposite directions, and transfer the yarn S between the upper and lower traverse guides 40 provided on the traverse belts 21 and 22, respectively. Thus, the yarn S can be reciprocated within a predetermined range corresponding to the winding width of the package P.

Between the traverse device T and the winding device A,
There is a problem associated with the reverse rotation of the winding device A during knotting. Conventionally, when the winding device A rotates in the reverse direction, the winding device A
The traverse mechanism 20 which is interlocked with the traverse mechanism 40 via the transmission mechanism 10 also performs reverse rotation.
There was an inheritance mistake between 0. Therefore, the transmission mechanism 10 of the present invention is configured so that the traverse mechanism 20 is not operated reversely during notching. Hereinafter, this configuration will be described.

This will be described with reference to FIG. As will be described later, the output gear 15 is configured to be urged by a spring 16 and mesh with the rotating plate 14. At the lower end of the boss 15b of the output gear 15, a guide member 15d projects outward in the radial direction as shown in FIGS. on the other hand,
As shown in FIG. 7, a clutch arm 71 is rotatably supported at a fulcrum 71a, and a plate 72 is mounted on one side of the clutch arm 71, and a tip of the plate 72 is positioned near an upper portion of the guide member 15d. Have been placed.
The other end of the clutch arm 71 has a contact portion 71b.
Are formed, and the corresponding contact portion 71b is in contact with the cam portion 70b of the rotating member 70.

The rotating member 70 is linked to a control unit (not shown) of the automatic winder device.
It rotates in the direction of arrow F3 around 0a. As a result, the contact portion 71b is disengaged from the cam portion 70b, and the clutch arm 71 rotates in the direction of arrow F4 in the figure, and accordingly, the plate 72 rotates, and the guide member 15d is moved to the position shown in FIGS. Press down at 7. And the spring 16
The output gear 15 is moved downward against the urging force of
The balls 15a, 15a...
, and the power to the traverse mechanism 20 is shut off.

With this configuration, the above-described yarn defect detector 53 detects a defect of the yarn S, cuts the yarn S, and reverses the drum 6 when knotting is performed. While catching the yarn, the clutch arm 7
1 is operated to release the output gear 15 from the rotary plate 14 to cut off the power transmission to the traverse mechanism 20 and prevent the traverse device T from being operated in reverse. For this reason, since the yarn S is not taken over between the traverse guides 40 due to the reverse rotation operation, problems such as mistakes in taking over are eliminated, and the operability of the winder device can be improved.

When the rotation member 70 makes one rotation, the contact portion 71b of the clutch arm 71 is lifted again on the cam portion 70b, and the clutch arm 71 rotates to guide the output gear 15 The pressing on the member 15d is released, the output gear 15 is again urged by the spring 16 and meshes with the rotary plate 14, and the traverse device T starts driving. At this time, as described later, the rotating plate 14
The output gear 15 and the output gear 15 are meshed only at a single position, so that the reciprocating motion of the traverse device T and the positions of the guide grooves 7.7 of the drum 6 are synchronized, and a stable winding process can be continued.

Next, the structure of the transmission mechanism 10 of the present invention will be described with reference to FIGS. In FIG. 4, an input gear 13 meshes with a gear c fixed coaxially with the gear b, and a pin 13a is mounted on the input gear 13 with a bolt or the like. A rotary plate (which also functions as a clutch plate) 1 is provided at a position below and below the input gear 13.
4 is provided, and the pin 13a of the input gear 13 is provided.
Project into the long hole 14a of the rotary plate 14. Further, as shown in FIG.
.. are plural (three places in this embodiment)
Has been drilled.

The same rotary shaft 12 as the rotary plate 14 is used.
A plurality of (three in this embodiment) balls 15a, 15a,... Are supported on the output gear 15 as shown in FIG. It is buried. Further, the output gear 15 has a rotating shaft 1.
In two directions, a boss 15b protrudes on the opposite side to the rotary plate 14, and a circumferential spring receiving hole 15c is provided below the boss 15b in FIG. Spring receiving hole 1
A spring 16 is embedded in 5c. The other end of the spring 16 is supported and fixed to the case side of the transmission mechanism 10, and the elastic force of the spring 16
The output gear 15 is urged toward the rotating plate 14.

Then, the balls 15a, 15a,
Are not arranged at equal intervals on the output gear 15. In the present embodiment, for example, the adjacent balls 15
The angles between a and 15a are 130 °, 100 °, and 130 °. Similarly, in the clutch holes 14b of the rotary plate (also a clutch plate) 14, 130 °, 100 °, 130 ° on the rotary plate 14.
Are arranged at intervals. In other words, by adopting such an arrangement of the ball 15a and the clutch hole 14b, the rotation plate 14 and the output gear 15 are engaged with each other to perform integral rotation, and are limited to only one location and are not connected in a free phase. That is what we are doing. The balls 15a and 15
and the arrangement positions of the clutch holes 14b are not limited to the above arrangement positions as long as they can be connected only in one phase.

When a conical or frustoconical cone winding other than a cylindrical cheese winding is used for the package P, the traverse speed must be changed between the small diameter portion and the large diameter portion. The embodiment shown in FIG. 4 is an embodiment corresponding to a cone winding package. This configuration will be described below. In FIG. 4, the input gear 13 and the rotary plate 14
3a, when the input shaft 11 which is the axis of the input gear 13 and the rotation shaft 12 which is the axis of the rotary plate 14 are arranged on the same axis,・ 14
Are linked at the same rotational speed.

However, when the input gear 13 and the rotary plate 14 are eccentric (not eccentric in the drawing), the pin 13a is connected to the rotary plate 14 while the input gear 13 makes one rotation.
Move within the long hole 14a. That is, the distance between the pin 13a and the rotating shaft 12 of the rotating plate 14 changes every moment. That is, it means that the pin 13a rotates at a constant peripheral speed, while the angular speed of the rotating plate 14 changes. Then, by adjusting the eccentric distance between the input gear 13 and the rotary plate 14, the transmission ratio may be adjusted so that the traverse speed is the largest on the small diameter side of the cone and the smallest on the large diameter side. is there.

FIG. 8 shows the speed change mechanism 10 in the winding device for cheese winding. In this case, the traverse speed of the traverse device T may be constant, and
Is not required. Therefore, in FIG. 8, a clutch hole 13 a is provided in the input gear 13, and a ball clutch device is configured between the input gear 13 and the output gear 15. However,
The transmission mechanism 10 in FIG. 4 can also handle cheese winding if the input shaft 11 and the rotary shaft 12 are arranged on the same axis without being eccentric.

The above-described adjustment of the eccentric distance is an important factor in synchronizing the operations of the traverse device T and the winding device A. Next, the synchronization adjustment of the traverse device T and the drum 6 of the winding device A is performed. Will be described. As described above, the guide grooves 7.7 are formed in the drum 6 near the left and right end portions on the surface thereof to prevent the yarn from falling off in a part of the circumferential direction. Synchronous adjustment is required for the operation of the yarn guide by the guide grooves 7 and the traverse device T.

That is, the traverse guide 40 transported by the traverse belts 21 and 22 of the traverse device T
When the guide 40 moves to the left and right end positions where the reciprocating motion is performed, it does not make sense if the guide grooves 7.7 of the drum 6 are not on the front side, that is, on the path of the yarn. Therefore, the above-described clutch configuration of the rotary plate 14 and the output gear 15 of the transmission mechanism 10 produces an effect. That is, the balls 15a of the output gear 15 and the clutch holes 14b of the rotating plate 14
.. 14b are meshed at only one place on the circumference, so that the rotating plate is in a state where the guide grooves 7.7 are in the front position and in a state where the traverse guides 40 are located at the left and right ends. What is necessary is just to adjust so that 14 and the output gear 15 may mesh. By performing such adjustment, the guide groove 7
Even if the drive is transmitted in a state where the positions of the traverse guides 40 and 40 are not synchronized, the drive is not transmitted to the traverse device T until the rotating plate 14 and the output gear 15 mesh with each other. Are synchronized, and the traverse device T can be driven for the first time.

In this embodiment, the rotating member 70
Of the clutch device is controlled by the cam portion 70b, the clutch arm 71, and the like, but it is of course possible to perform electrical control using an air cylinder, a solenoid, or the like, as described in this embodiment. It is not limited to one. Further, in the present embodiment, the traverse device T is shown as an example of a belt type, but for example, the traverse device may be of a blade type, and the same applies to the configuration including the above-described transmission mechanism and clutch mechanism. It has the effect of.

[0035]

The traverse device according to the present invention is constructed as described above, and has the following effects. That is, in the automatic winder, a clutch device is interposed between the drive source and the traverse mechanism, and the power transmission to the traverse mechanism is cut off by cutting the clutch device when knotting the yarn. Therefore, when a defect is detected in the yarn, even if the yarn is cut and knotted, the yarn is not taken over by the reverse rotation operation of the traverse device, so that problems such as mistakes in taking over are solved. The operability of the winder device can be improved.

Further, in the automatic winder, a clutch device is interposed between the drive source and the traverse mechanism, and the clutch device can be connected only in a set phase. The reciprocating motion is synchronized with the reciprocating motion, so that the reciprocating yarn in the traverse device is positioned at the left and right end positions, and the yarn is guided by the twill drop guide groove provided on the drum of the winding device. It is possible to drive the traverse device only when the drive is not transmitted to the traverse device even if the drive is transmitted in the non-synchronous state, and the two are synchronized. As a result, a smooth and stable winding process became possible.

The clutch device is constituted by a ball clutch comprising an output gear having a plurality of balls embedded therein and a clutch plate having a plurality of clutch holes, and the output gear and the clutch plate are engaged only in a set phase. With this configuration, the winding device and the traverse device can be synchronized with each other in a simple configuration, and a low-cost and stable winding process can be performed.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an automatic winder unit.

FIG. 2 is a schematic diagram of a winding device, a speed change mechanism, and a traverse mechanism.

FIG. 3 is a schematic plan view of a traverse mechanism.

FIG. 4 is a sectional view of a transmission mechanism.

FIG. 5 is a plan view of a rotating plate (clutch plate).

FIG. 6 is a plan view of an output gear.

FIG. 7 is a side view showing a clutch mechanism.

FIG. 8 is a cross-sectional view of a clutch mechanism for cheese winding.

[Explanation of symbols]

 Reference Signs List 2 Drive source 6 Drum 7 Guide groove 10 Transmission mechanism 11 Input shaft 12 Rotary shaft 13 Input gear 14 Rotating plate (clutch plate) 14a Long hole 14b Clutch hole 15 Output gear 15a Ball 20 Traverse mechanism

Claims (3)

[Claims] In an automatic winder, a clutch device is interposed between a drive source and a traverse mechanism, and when knotting a yarn, the clutch device is disconnected to cut off power transmission to the traverse mechanism. A traversing device for an automatic winder, wherein 2. In an automatic winder, a clutch device is interposed between a drive source and a traverse mechanism, and the clutch device can be connected only in a set phase, and a rotational movement of a drum of a winding device and a traverse mechanism are provided. A traverse device for an automatic winder, wherein the traverse device is configured to synchronize the reciprocating motion of the automatic winder. 3. The clutch device according to claim 1, wherein the clutch device includes a ball clutch including an output gear having a plurality of balls embedded therein and a clutch plate having a plurality of clutch holes, and the output gear and the clutch plate are engaged only in a set phase. 3. The traversing device for an automatic winder according to claim 2, wherein the traversing device is configured as described above.