JPH07109073A - Spinning winder and operating method thereof - Google Patents

Abstract

PURPOSE:To improve a vibration-proof characteristic as well as to make low- speed operation achievable by installing a supporting means being free of detachment from the tip of a bobbin holder existing in a winding position, in this spinning winder which installed two bobbin holders in a turret plate being free of turning. CONSTITUTION:A portal frame 20 is erected in a tip 2A of the bottom part of a body frame, and a supporter 21 is installed tight in this portal frame 20. This supporter 21 separates from a bobbin holder 5 at a winding position (a) at the time of high-speed winding, and this bobbin holder 5 is in a state of being cantilevered. On the other hand, at the time of low winding, the supporter 21 is engaged with the bobbin holder 5 at the winding position (a), whereby this bobbin holder 5 is in a state of being centered in balance. When it operates at a low-speed operating area B and comes to a yarn changing time, the supporter 21 temporarily separates from the bobbin holder 5 at the winding position (a), and thereby a turrent plate 4 rotates as far as 180 deg., and if a bobbin holder 6 provided with an empty bobbin B arrives at the winding position (a), it is reengaged with the bobbin holder 5 reached to this winding position (a).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turret type wind-up winder in which a bobbin holder protruding from a turret plate is rotated when changing yarns, and more particularly to a turret-type wind-up winder capable of winding in a wide speed range including low speeds.

[0002]

2. Description of the Related Art A conventional take-up winder of this type will be described with reference to the side view of FIG. 6 and the front view of FIG. This spinning winder 1 is mounted on the main body frame 2 about a horizontal axis 3 about 18 mm.
A turret plate 4 that rotates by 0 °, two bobbin holders 5 and 6 that are cantilevered from the turret plate 4, and an induction motor that is fixed to the back side of the turret plate 4 and that drives the bobbin holders 5 and 6 to rotate. 7, 8 and a touch roller 10 provided on an elevating frame 9 that can be vertically moved up and down with respect to the main body frame 2, and a traverse device 1 also provided on the elevating frame 9.
The lifting / lowering frame 9 is mainly constituted by 1 and the load is supported by the contact pressure cylinder 12 provided at the base end side thereof, and the differential pressure between the total weight of the lifting / lowering member and the lifting force by the contact pressure cylinder 12 is The contact pressure of the touch roller 10 is applied to the package. In addition, B is a bobbin, P is a package wound around the bobbin B, and 13 is a full winding package P.
Is a pusher device for pushing out the bobbin B.

The operation of the above-described spin winding machine will be described below. In FIG. 6, the bobbin holder 5 is in the winding position a, and the bobbin holder 6 is in the standby position b. When the package at the winding position a is fully wound, the turret plate 4 moves to 18
It turns 0 °, the full package P becomes the standby position a, and the empty bobbin B becomes the winding position b. Then, as shown in FIG. 7, the yarn Y comes into a state of being wound around the bobbin B while being in contact with the bobbin B, and the yarn transfer device (not shown) transfers the yarn Y from the full-wrap package P to the bobbin B. Next, the rotation of the bobbin holder 6 at the standby position b is stopped, and the pusher device 13 pushes the full-roll package P to a doffing dolly (not shown), and at the same time, an empty bobbin B is inserted into the bobbin holder 6. By repeating the above operation, the yarn is continuously wound.

By the way, the bobbin holders 5 and 6 are cantilever-supported rotating bodies, hold a package P of a considerable weight wound around the bobbin B, and apply a predetermined contact pressure via the touch roller 10. Structure. Therefore, the bobbin holders 5 and 6 have a considerably low frequency low order natural frequency. On the other hand, the spinning winder has 2500
High-speed winding of m / min or more is common. Therefore, such high speed winding is performed by the bobbin holder 5 as shown in FIG.
The frequency of the operating region A is located in a range exceeding the low-order natural frequency of, and high-speed winding can be performed, for example, 2500 to 6000 m / min.

[0005]

However, such a take-up winder has a problem that it cannot be used for low-speed winding because it is dedicated for high-speed winding. Especially 2500
When the winding speed is low such as 500 m / min, the region including the low-order natural frequency shown in FIG. 8 enters the operating region, and the resonance of the cantilever bobbin holder causes the device to vibrate, making stable winding impossible. .

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a take-up winder having a wide operating range including low-speed take-up and its spinning winder. It is intended to provide a driving method.

[0007]

SUMMARY OF THE INVENTION To achieve the above object, a spinning winder according to the present invention has two bobbin holders which are rotationally driven, projecting from a rotatable turret plate, and each of the bobbin holders has a winding position. In a take-up winder that is alternately positioned between a bobbin holder and a standby position, a support means that is engageable and disengageable with respect to the tip of the bobbin holder at the take-up position is fixedly provided to the main body frame. It is what

In the method for operating the take-up winder of the present invention, the cantilever bobbin holder is used for winding at high speed, and the bobbin holder at the winding position is held at both ends for low speed winding to increase the rigidity and the natural frequency. It is a method whose main point is to change and wind.

[0009]

In the high speed winding, the supporting device which can be engaged and disengaged is detached, and the cantilever bobbin holder is in a normal state where the bobbin holder is wound in an operating region above the low-order natural frequency. During low-speed winding including this low-order natural frequency, the bobbin holder at the winding position is held by a support device that can be engaged and disengaged, and the low-order natural frequency is changed in the upshift direction. Is used as the main operating area for low speed operation. Even in the vicinity of the upshifted low-order natural frequency, the rigidity of the bobbin holder is increased due to both ends, vibration is suppressed, and operation becomes possible. In this way, the specific natural frequency is not limited to the low-order natural frequency.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of the take-up winder of the present invention, FIG. 2 is a front view of the take-up winder of the present invention, and FIG. 3 is a sectional view of a supporting means for the tip of a bobbin holder. 1 and 2, parts that operate in the same manner as those in FIGS. 6 and 7 are denoted by the same reference numerals, and the description thereof will be omitted.

The part different from those shown in FIGS. 6 and 7 is the support structure of the bobbin holder 5 located at the winding position a.
Hereinafter, this support structure will be described in detail. A gate-shaped frame 20 is erected on the bottom end 2A of the main body frame, and a support device 21 is fixedly mounted on the gate-shaped frame 20. That is,
The support device 21 has a gate frame 20 with respect to the main body frame.
It is fixedly provided at the winding position a through and is detachable from the bobbin holder 5.

As shown in FIG. 2, the gate-shaped frame 20 has a space 20A so that the package P can be extracted from the bobbin holder 6 in the axial direction. Instead of the gate-shaped frame 20, a frame that obliquely projects from the high end 2B of the main body frame to the winding position a may be used. In short, the package P at the standby position b
Any frame can be used as long as it is located at the winding position a so as not to interfere with the extraction of the.

As shown in FIG. 3, the support device 21 has a cylinder 24 fitted and fixed in a hole 20B of the gate frame 20, and a piston 25 is slidably inserted into the cylinder 24. A cone 26 is press-fitted into the piston 25, and a support shaft 27 is rotatably supported by a bearing 28 in the tip of the cone 26. The tip of the support shaft 27 has a conical shape and engages with the conical hole 5a of the bobbin holder 5. The cylinder 24 and the piston 25 described above constitute a pneumatic actuator, and when compressed air is introduced into the c port, the piston 25 retreats, and the engagement between the bobbin holder 5 and the support shaft 27 is released. When compressed air is introduced into the d port, the piston 25 advances and engages the bobbin holder 5 with the support shaft 27. In this way, the support shaft 27 can be engaged with and disengaged from the bobbin holder 5 at the winding position a.

Instead of the cone and the conical hole 5a shown in FIG. 3, a straight shaft 35 and a straight hole 36 may be combined as shown in FIG. An O-ring 37 for cushion is fitted into the hole 36 of the bobbin holder 5. The shaft 35 projects like a chain double-dashed line to form a hole 36.
After entering, the bobbin holder 5 is in a two-sided holding state. It is preferable to use this support device 21 'because no axial force is exerted on the bobbin holder 5 during engagement.

The support device 21 of FIG. 1 is detachable from the bobbin holder 5 at the winding position a by the solenoid valve device 30, and the solenoid valve device 30 operates via the controller 31 and the low speed changeover switch 32. . When the low speed take-up switch 32 is pressed to select the low speed take-up, the support device 21 puts the bobbin holder 5 at the take-up position a on both sides except when the yarn is being changed. Since the turret plate 4 rotates at the time of thread switching, the bobbin holder 6 having the empty bobbin B is removed until it reaches the winding position, and the controller 31 controls this timing.

Next, the operating state of the above-described spinning winder will be described with reference to FIG. At the time of high-speed winding, the supporting device 21 of FIG. 1 is separated from the bobbin holder 5 at the winding position a, and the bobbin holder 5 is in a cantilever state. In this cantilever state, operation is performed in the high-speed operation region A, which is a range above the low-order natural frequency located on the lower side as indicated by the solid line, for example, 2500
It is operated by selecting a specific speed between ˜6000 m / min.

At the time of low speed winding, the supporting device 21 of FIG. 1 is engaged with the bobbin holder 5 at the winding position a, and the bobbin holder 5 is in a both-supported state. In this double-supported state, the lower-order natural frequency indicated by the solid line shifts up as indicated by the dotted line. It becomes possible to operate even in the low-speed operation region B of the diagonal line where the low-order natural frequency of this dotted line is lower than, for example,
Low speed operation of m / min or more is possible. Therefore,
When the high speed operation area A and the low speed operation area B are combined, a wide range operation of, for example, 500 to 6000 m / min becomes possible.

Further, when the bobbin holder 5 is in the both-supported state, the rigidity is increased and the vibration is suppressed, so that the bobbin holder 5 can be operated even in the vicinity of the point C including the shifted lower natural frequency, such as the vicinity of the point C. Is.

When the yarn is switched during the operation in the low speed operation region B, the supporting device 21 of FIG. 1 is temporarily detached from the bobbin holder 5 at the winding position a, and the turret plate 4 is moved to 18 °.
The bobbin holder 6 having the empty bobbin B mounted thereon is rotated to 0 ° to the winding position a. Then, the supporting device 21 of FIG. 1 engages with the bobbin holder 6 that has come to the winding position a, and the yarn switching from the package P to the empty bobbin B is performed. And the standby position b
The rotation of the bobbin holder 5 is stopped, and the package P is extracted.

In the above embodiment, the so-called spindle drive type take-up winder in which the bobbin holders 5 and 6 for mounting the bobbin B are directly driven by the built-in motor 8 has been described. The present invention is also applied to a so-called friction drive type take-up winder in which the bobbin B is indirectly driven by driving the touch roller that rolls.

[0021]

The spinning winder and the method of operating the same according to the present invention have a simple structure in which the bobbin holder at the winding position is held in a double-sided manner. The rigidity against vibration force during take-up has been improved to improve vibration resistance and enable low-speed operation.When combined with the high-speed take-up area of a normal cantilever bobbin holder, it can support a wide range of take-up speeds. It will be possible.

[Brief description of drawings]

FIG. 1 is a side view of a take-up winder according to the present invention.

FIG. 2 is a front view of the take-up winder of the present invention.

FIG. 3 is a cross-sectional view of a supporting means for the tip of the bobbin holder.

FIG. 4 is a sectional view of another supporting means for the tip of the bobbin holder.

FIG. 5 is a graph showing an operation region according to an operation method of the take-up winder of the present invention.

FIG. 6 is a side view of a conventional take-up winder.

FIG. 7 is a front view of a conventional take-up winder.

FIG. 8 is a graph showing an operation region according to an operation method of a conventional take-up winder.

[Explanation of symbols]

 2 main body frame 2A lower end 4 turret plate 5, 6 bobbin holder 20 portal frame 21 support device (supporting means) a winding position b standby position

Claims (2)

[Claims] 1. A spinning winder in which two rotatably driven bobbin holders are projectingly provided on a rotatable turret plate, and each of the bobbin holders is alternately positioned at a winding position and a standby position. A take-up winder, wherein a supporting means that is engageable and disengageable with respect to the tip of the bobbin holder at the take-up position is fixedly provided to the main body frame. 2. An operation of a take-up winder, wherein two rotatably driven bobbin holders are provided on a rotatable turret plate so that the bobbin holders are alternately located at a winding position and a standby position. In the method, the cantilever bobbin holder is used for high-speed winding, and the bobbin holder at the winding position is supported for low-speed winding to increase rigidity, and the natural frequency is changed for winding. How to operate the machine.