JP3414141B2 - Spinning winder and method of operating the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spinning winder for winding a yarn spun from a spinning machine at high speed, and more particularly to a spinning winder capable of winding in a wide speed range from low speed to high speed.

[0002]

2. Description of the Related Art In a conventional spinning winder of this type, a rotary cylinder inserted into the fixed cylinder is fixed to the tip of a drive shaft that is supported in the fixed cylinder, and the bobbin is placed outside the rotary cylinder. A bobbin holder for holding is attached in a cantilevered manner, and a touch roller rotatably supported by the elevating frame abuts against the bobbin inserted in the bobbin holder with a predetermined contact pressure. Then, by rotating the bobbin holder and the touch roller, the yarn from the spinning machine is wound around the bobbin at a predetermined winding speed. Further, since the spinning speed from the spinning machine is constant and the winding speed is also constant, the number of rotations of the bobbin holder and the touch roller gradually decreases as the bobbin becomes thicker.

In such a take-up winder, there is a demand for high-speed operation for mass-produced products, while there is a demand for low-speed operation for multi-product small-production products. Therefore, the number of rotations of the bobbin holder is wide. But,
When the bobbin holder of the take-up winder reaches a certain rotational speed, the touch roller and the elevating frame vibrate greatly. This is because a resonance phenomenon occurs because the rotation speed of the bobbin holder matches the natural frequency of the touch roller and the lifting frame. Therefore, the winding speed during the winding operation is between the low-order natural frequency and the high-order natural frequency of the touch roller and the elevating frame, for example, 2000 to 6000 m /
The winding speed was min. In order to enable the spinning winder to operate at a wide range of winding speeds including low speeds of 2000 m / min or less, it is necessary to suppress the resonance phenomenon of the touch roller and the lifting frame.

The following methods have been proposed as methods for suppressing the vibrations of the touch roller and the elevating frame, especially at low natural frequencies. (A) By supporting the tip of the bobbin holder detachably and changing the bobbin holder from the cantilever support in the middle to the both-end support in the tip and in the middle, the low-order natural frequency is shifted upward to enable low speed operation. how to. (B) A method of attaching a dynamic vibration absorber to the touch roller and the elevating frame to damp the vibrations of the touch roller and the elevating frame at low natural frequencies to enable low speed operation. (C) The base end of the bobbin holder is fixedly supported by a bearing, and the bobbin holder is changed from a cantilever support in the middle to a both-end support in the middle and at the base end to shift the low-order natural frequency upward to reduce the speed. How to enable driving.

[0005]

However, in the above method (a), a detachable support mechanism is provided at the tip of the bobbin holder, but the support mechanism is not provided because the full bobbin or the empty bobbin is taken in and out from the tip of the bobbin holder. It is necessary to have a structure that can be retracted to the extent that it does not interfere with the full bobbin,
The machine base that supports the support mechanism also becomes a weak part near the tip. Therefore, the rigidity of the support mechanism becomes insufficient, and there is a problem that the low-order natural frequency can be slightly shifted upward. In the method (b), since the low-order natural frequency does not disappear even if the amplitude becomes low, there is a problem that the operation near the low-order natural frequency may be hindered. . In the method (c), the rigidity of the machine base on the base end side of the bobbin holder is sufficient, but since the outer diameter of the base end of the bobbin holder is large, the diameter of the bearing is inevitably large, for example, 6000 m / min. High-speed rotation has a problem that the bearing life becomes too short and practical application is difficult.

The present invention has been made in view of the above problems of the prior art, and is effective in suppressing the vibration of the bobbin holder and has a wide range of operation including low-speed winding. The purpose is to provide a machine and its operating method.

[0007]

According to a first aspect of the present invention that achieves the above object, a rotary cylinder inserted into a fixed cylinder is fixed to a tip of a drive shaft that is axially supported in the fixed cylinder. However, in the spinning winder in which the bobbin holder for holding the bobbin outside the rotating cylinder is provided in a cantilevered manner, a bearing that can be supported or unsupported between the base end of the rotating cylinder and the fixed cylinder. It is characterized in that means are provided. In order to change the bobbin holder from one-sided support to two-sided support, a supporting means with increased rigidity is required. The effect of changing this supporting means is relatively effective for low-order natural frequencies, but high-order natural frequency. The present invention has been completed by experimentally confirming that there is almost no effect on the frequency, and the base end of the bobbin holder is supported by bearings at low speed operation, and the base end of the bobbin holder is unsupported at high speed operation. It was done.

According to a second aspect of the present invention, in the first aspect, the bearing means supports a bearing fitted to the outer circumference of the rotary cylinder and an outer ring of the bearing, and is removable from the base end of the fixed cylinder. Alternatively, the housing member is releasably attached. By providing the bearing on the outer circumference of the rotating cylinder rather than between the rotating cylinder and the fixed cylinder, removal or opening of the housing member changes the support from unsupported. As a detachable mode, there are a method of removing a tubular housing member by removing a bolt and a method of attaching a tubular housing member that can be divided into two by a bolt with a clamp device. Examples of the mode that can be opened include a mode in which the housing member is configured by a clamp device that can be automatically opened and closed by the cylinder device, and a mode in which the housing member is pulled out by the cylinder device to be in an open state.

According to a third aspect of the present invention, in a method of operating a spinning winder in which a rotary driven bobbin holder is provided in a cantilevered manner, the base end of the bobbin holder is supported by a bearing,
The base end of the bobbin holder is not supported during high-speed normal operation. At low speed operation, vibration is avoided by supporting the bobbin holder at the base end and at two points in the middle, and at high speed operation, the bobbin holder is supported at one point in the middle to increase the degree of freedom.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. First, the whole of the take-up winder of the present invention will be described with reference to FIGS. 6 and 7, and then the bobbin holder which is the main part of the present invention will be described. FIG. 6 is a side view of the inventive spin take-up machine, and FIG. 8 is a front view of the inventive take-up winder.

In FIGS. 6 and 7, the take-up winder 101 is shown.
Is a turret plate 104 that rotates 180 degrees about the horizontal axis 103 with respect to the main body frame 102, and two bobbin holders 1 that cantileverly project from the turret plate 104.
05 and 106 and induction motors 107 and 108 fixed to the back side of the turret plate 104 to rotate and drive the bobbin holders 105 and 106, and a touch roller provided on an elevating frame 109 vertically movable with respect to the main body frame 102. 110 and a traverse device 111 also provided on the elevating frame 109.
The load is supported by the contact pressure cylinder 112 provided on the base end side, and the differential pressure between the total weight of the lifting member and the lifting force by the contact pressure cylinder 112 becomes the contact pressure of the touch roller 110 with respect to the package. . In addition, B is a bobbin or an empty bobbin, P is a full-winding package or a full-winding bobbin wound on the bobbin B, and 113 is a pusher device for pushing the bobbin B of the full-winding package P.

The spin winder described above operates as follows. In FIG. 6, the bobbin holder 105 is in the winding position a and the bobbin holder 106 is in the standby position b. When the package at the winding position a is fully wound, the turret plate 1
04 turns 180 ° and the full package P is in the standby position a.
The empty bobbin B becomes the winding position b. And FIG.
As shown in (1), the yarn Y comes into a state of being wound around the empty bobbin B while being wound around the empty bobbin B, and the yarn Y is transferred from the empty package P to the empty bobbin B by a yarn passing device (not shown). Next, the rotation of the bobbin holder 106 at the standby position b is stopped, and the pusher device 113 pushes the full-roll package P onto a doffing dolly (not shown), and at the same time, the empty bobbin B is inserted into the bobbin holder 106. By repeating the above operation, the yarn is continuously wound.

By the way, the bobbin holders 105 and 106 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 110. Structure. The structure of such a bobbin holder is shown in FIGS.
Will be described.

FIG. 1 is a sectional view of a bobbin holder of the spinning winder of the present invention, FIG. 2 is a detailed sectional view of a base end of the bobbin holder, and FIG.
2 is a sectional view taken along line XX in FIG. 2, and FIG. 4 is a sectional view showing another bearing means at the base end of the bobbin holder.

In FIG. 1, the bobbin holder 105 (10
6) has a fixed cylinder 2, a drive shaft 3 and a rotating cylinder 4 as main components. The rotary cylinder 4 is a base member for holding the bobbin B, and is fixed to the tip of the drive shaft 3 by a rib 4A in the rotary cylinder 4. The drive shaft 3 is a rotating cylinder 4
A fixed cylinder 2 inserted therein is supported by bearings (not shown). A built-in induction motor 1 is provided at the end of the drive shaft 3.
07 (108) is attached. In this way, the rotating cylinder 4 is rotatably supported by the fixed cylinder 2 via the drive shaft 3 and can rotate at high speed.

The bobbin B is held outside the rotary cylinder 4. The bobbin B rotates while rollingly contacting the touch roller 110, and a predetermined contact pressure F is applied from the touch roller 110.

There are various bobbin B holding structures, one example of which is described below. Spacer rings 9 and elastic rings 10 are alternately loosely fitted around the outer periphery of the rotary cylinder 4. The spacer ring 9 is a cylinder of aluminum material, and the outer circumference thereof supports the inner diameter of the bobbin B. The elastic ring 10 is a rubber ring having a substantially rectangular cross section with metal plates adhered to both ends thereof, and its inner and outer diameters expand when a compressive force in the axial direction is applied via the spacer ring 9. Then, due to the expansion and deformation of the inner and outer diameters, the elastic ring 10 is brought into close contact with and integrated with the outer circumference of the rotary cylinder 4 and the inner circumference of the bobbin B, and the bobbin B is concentrically held on the rotary cylinder 4 to transmit the rotational driving force. To do.

A cap 11 is movably inserted into the tip of the rotary cylinder 4, and the elastic ring 10 is compressed or released by the cap 11. Furthermore, the piston 11A of this cap and the cylinder 4B at the tip of the rotating cylinder are
It constitutes an actuator. Normally, the piston 11
A spring 12 is interposed between A and the cylinder 4B, and the cap 11 compresses the elastic ring 10 via the spacer ring 9 to hold the bobbin B (see the upper half of the cross-sectional view of FIG. 1). Then, when compressed air is introduced into the right chamber of the piston 11A from the air hole 3A that passes through the center of the drive shaft 3, the cylinder 4B moves leftward, releases the elastic ring 10, and also releases the bobbin B. (See the lower half of the cross-sectional view of FIG. 1).

A bearing 13 is provided on the outer periphery of the base end 21 of the rotary cylinder 4.
Is inserted, and the bearing 13 is fixed to the side of the rotary cylinder 4 by a nut 22. The base end side of the fixed cylinder 2 is a flange 23, and a housing member 15 having an inner circumference for receiving the outer ring of the bearing 13 is fixed to the flange 23 with a bolt 24. The bearing 13, the nut 22, the housing member 15, the bolt 24, and the like constitute a bearing means that can be changed to be supported or unsupported between the base end 21 of the rotary cylinder 4 and the flange 23 of the fixed cylinder 2.

In the state where the housing member 15 is fixed to the flange 23 side of the fixed cylinder 2 by the bolt 24, the base end 21 of the rotary cylinder 4 is attached to the base end side of the fixed cylinder 2 via the bearing 13. It is supported. However, when the bolt 24 is removed, the housing member 15 can be pulled out in the direction of. When the housing member 15 is pulled out, the bearing 13
Simply rotates with the rotating cylinder 4,
The bearing 13 is not supported and is in an unsupported state. In addition,
The O-ring 14 interposed between the outer ring of the bearing 13 and the inner periphery of the housing member 15 is for preventing the outer ring from rotating together with the inner ring when the bearing 13 is in a supported state. Is. Further, when the bearing 13 is not supported, it is desirable to provide a dust-proof, frangible cover that covers the outer periphery of the bearing 13 instead of the housing member 15.

Details of such bearing support are shown in FIG. The base end 21 of the rotary cylinder 4 is composed of a ring-shaped convex portion 25 for forming a step portion, a cylindrical portion 26, and a male screw portion 27. The bearing 13 is an angular contact type ball bearing 13a, 13 that can withstand radial load and thrust load.
The nut 22 to be screwed into the spacer 28 and the male screw portion 27, in which b is a front surface / composite front surface, and hits the stepped portion by the convex portion 25.
It is sandwiched between and. Ball bearings 13a, 13b
The inner ring of is fixed by being tightened between the spacer 28 and the nut 22, and has a structure capable of withstanding a thrust load generated when the housing 15 slides in the direction or on the outer circumference of the outer ring of the ball bearings 13a and 13b. ing.

As shown in FIG. 3, the housing member 1
Bolt 1 for fixing 5 to the flange 23 of the fixed cylinder
6 are arranged with their phases shifted in the circumferential direction so as not to interfere with the bolts 29 for fixing the flange 23 to the turret plate 104. Inner circumference 15a of housing member 15
Is a simple cylinder, the housing member 15 can be pulled out from the bearing 13 toward the front. It should be noted that it is desirable to provide a jack bolt on the housing member 15 for removal.

Another bearing means capable of automatically opening and closing the base end of the bobbin holder will be described with reference to FIG. The housing member 31 has a pair of half-cylindrical members 31a and 31b, each of which has one end side rotatably supported by a shaft 32 protruding from the flange 23. Arms 33 project from the other ends of the pair 31a and 31b, and a cylinder device 34 is interposed between the arms 33. When the rod of the cylinder device 34 is in a shortened solid line, the base end 21 of the rotating cylinder is
The outer ring of the bearing 13 provided in the above is held, and the base end 21 of the rotating cylinder is bearing-supported by the flange 23 on the base end side of the fixed cylinder. In the state of the chain double-dashed line in which the rod of the cylinder device 34 extends, the housing member 31 separates from the outer ring of the bearing 13 provided at the base end 21 of the rotating cylinder, and the base end 21 of the rotating cylinder 21.
And the flange 23 on the base end side of the fixed cylinder become free and unsupported.

Next, the operating method of the take-up winder of the present invention will be described with reference to FIGS. 5 and 1. As shown in the figure, when the bearing 13 constituting the bearing means of the present invention is not supported by the fixed cylinder, the take-up winder has a low-order natural frequency a1 and a high-order natural frequency a2. There is. And the operating area A
Is selected to have a low amplitude between frequencies a1 and a2. This operation area A is, for example, 2000 to 6000 m /
It covers the high winding speed of min. 6000m / m
At the winding speed of in, since the outer diameter of the base end of the bobbin holder is 100 mm or more, the life of the bearing 13 may be limited, but the bearing 13 is simply the outer circumference of the base end 21 of the rotating cylinder 4. Therefore, it is only rotating together with the rotating cylinder 4, and there is no load.

However, when the bearing 13 which constitutes the bearing means of the present invention is brought into a supported state, the rigidity is increased due to the double-end holding bobbin holder 105 (106) on the way and at the base end side. The next natural frequency a1 shifts to a1 '. Therefore, the region B where the frequency is low can be operated, and the spinning winder can be operated at a low speed. For example, 500
It is operated by selecting a specific speed between ˜2000 m / min. At a low speed of 2000 m / min or less, even a large bearing 13 used when the outer diameter of the base end of the bobbin holder is 100 mm or more has a sufficient bearing life and can be used. Further, in general, the tip of the bobbin holder 105 (106) swings when approaching the low-order natural frequency a1, but the tip of the bobbin holder 105 (106) is free even if the bearing 13 is in a supported state, which causes a problem. Absent. Conversely, when approaching the higher natural frequency a2,
The base end 105 (106) of the bobbin holder tries to swing, but in this case, since the bearing 13 is unsupported, there is no problem because the base end of the bobbin holder 105 (106) is free. Also, the bobbin holder 105 (106)
From one point on the way to either 2 on the way or at both ends
The vibration reduction effect of the point support is that the low-order natural frequency a
It is effective for 1 and becomes almost ineffective at high-order natural frequency a2. Therefore, in the effective low speed rotation operation, the base end 21 of the bobbin holder 105 (106) is supported by the bearing 13, and in the high speed rotation operation, the bobbin holder 105.
It is effective to make the bearing 13 at the base end 21 of (106) unsupported and free. Further, the bobbin holder 105
When (106) is to be supported at two points on either the middle or both ends, the rigidity of the end is required.
There is a strong turret plate 14 at the base end 21 of 5 (106), and the base end of the bobbin holder 105 (106) can be bearing-supported with high rigidity. On the contrary, this means that a high load may be applied to the bearing 13, and in that sense, it is effective to make the bearing 13 at the base end 12 of the bobbin holder 105 (106) unsupported at high speed rotation.

When the bearing 13 which constitutes the bearing means is not supported, it is applied to, for example, a mass-produced product of a take-up winder, and when the bearing 13 which constitutes the bearing device is supported, for example, spinning of a large variety of small product types is carried out. It is applied to winders. That is, when the type of product is changed, the bearing means is switched to be supported or unsupported, a sufficient working time can be taken, and the switching can be practically performed.

As shown in FIG. 6, the elevating frame 10
It is desirable to provide a dynamic vibration reducer 41 at the tip of 9. Depending on the winding speed, the rotation speed of the bobbin holder 105 (106) may approach the low-order natural frequencies a1 and a1 ', so the vibration in that case is attenuated by the dynamic vibration absorber 41, and the influence of the vibration is reduced. Because you can.

In the above embodiment, the so-called spindle drive type take-up winder in which the bobbin holders 105 and 106 for mounting the bobbin B are directly driven by the built-in motor 108 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. Further, the bearing means of the present invention is applied not only to the turret type wind-up winder, but also to a wind-up winder having a single bobbin holder provided so as to project and threading each time a full package is formed.

[0029]

As described above, according to the first aspect of the invention, the bearing means which can be supported or unsupported is provided between the base end of the rotary cylinder and the fixed cylinder, and the bearing means can be used during high speed winding. In the unsupported state, to prevent an excessive load from being applied to the bearing means, the bobbin holder is in a flexible state, and the bearing means is in a supported state during low-speed winding.
By supporting the bearing at the base end of the rotating cylinder, it is possible to perform winding while avoiding low-order natural frequencies. Further, the rigidity for supporting the bearing means on the base end side is sufficient. This allows high-speed winding of mass-produced varieties using the same spinning winder,
It has the effect of being practically applicable to both low-speed winding of high-mix low-volume production.

According to a second aspect of the present invention, the bearing means supports a bearing fitted to the outer periphery of the rotary cylinder and an outer ring of the bearing, and is detachably or releasably attached to the base end of the fixed cylinder. The present invention has an effect that the bearing can be easily supported or unsupported by removing or opening or closing the housing member.

According to a third aspect of the present invention, the base end of the bobbin holder is supported by a bearing, and the base end of the bobbin holder is not supported during high-speed normal operation. The winding machine can be used for both high-speed winding of mass-produced varieties and low-speed winding of high-mix low-volume production. Switching between support and non-support facilitates the switching work as a part of the product change work. There is an effect that it can be performed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a bobbin holder of a take-up winder of the present invention.

FIG. 2 is a detailed sectional view of a bobbin holder base end.

FIG. 3 is a sectional view taken along line XX of FIG.

FIG. 4 is a sectional view showing another bearing means at the base end of the bobbin holder.

FIG. 5 is a graph showing the operating range of the take-up winder of the present invention.

FIG. 6 is a side view of the take-up winder of the present invention.

FIG. 7 is a front view of the take-up winder of the present invention.

[Explanation of symbols]

2 Fixed cylinder 3 Rotating cylinder 13 Bearing (bearing means) 15 Housing member (removable housing member) 21 Base end 31 Housing member (openable and closable housing member)

Claims (3)

(57) [Claims] 1. A bobbin holder, which holds a bobbin outside of the fixed cylinder, is fixed to a tip of a drive shaft that is rotatably supported in the fixed cylinder. In the above described spin winder, a bearing means that can be supported or unsupported is provided between the base end of the rotary cylinder and the fixed cylinder. 2. The bearing according to claim 1, wherein the bearing means supports a bearing fitted to the outer periphery of the rotary cylinder and an outer ring of the bearing, and is detachably or releasably attached to the base end of the fixed cylinder. And a housing member. 3. A method of operating a spinning winder in which a rotary driven bobbin holder is provided in a cantilevered manner. In a low speed normal operation, the base end of the bobbin holder is supported by a bearing.
A method of operating a take-up winder, characterized in that the base end of the bobbin holder is not supported during high-speed normal operation.