JPH0356369A - Automatic switching winding machine for yarn - Google Patents

Abstract

PURPOSE:To prevent the generation of vibration and the fatigue damage of an axis due to the moment load acting upon the package weight by providing a turret table protrusively with a column matching the rotational axis and providing the tip of the column with plural arms detachable from the respective tip parts of plural bobbin holders. CONSTITUTION:A column is protrusively provided on a turret table 2, in the rotational axis position of the turret table 2, in such a way as to be parallel to the rotational axis. The tips of bobbin holders 4, 5 are supported by arms 6A, 6B provided at the column from the filament winding time to the turret time, further through the bobbin holder braking time, and thus the bobbin holders 4, 5 are supported at both ends by the turret table 2 and the arms 6A, 6B. The bobbin holders 4, 5 are thereby prevented from vibration, damage and package break so as to heighten the safety of a winding machine.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic switching winding machine having a plurality of bobbin holders protruding from a turret table.

[Conventional technology]

Many turret type winders have a structure in which one end of the bobbin holder is supported in a cantilevered manner in order to facilitate bobbin device and doffing. However, in recent years, the amount of winding by yarn winding machines has increased, and there is also a tendency to increase the number of bobbins held in one bobbin holder.

Therefore, there is a problem in that the free end of the bobbin holder, which is supported in a cantilever manner, bends due to the weight of the bobbin. As a countermeasure for this, for example, Utility Model No. 53-1224. There is a winding machine described in Publication No. 38.

In this winding machine, two bobbin holders are cantilever-supported on a rotatable cradle, and a support cylinder is fixedly installed on the machine frame separately from the cradle, and the bobbin holders during winding are mounted on this support cylinder. A device is installed to support the free end, and during winding, the tip of the bobbin holder is supported by the support device at the winding position to prevent the bobbin holder from bending. The support device is released 1174 from the tip.

[Problem to be solved by the invention]

However, in this conventional winding machine, the support device is provided in a support tube that is strategically installed separately from the cradle, so the support device can rotate together with the cradle.
Therefore, it is necessary to release this support device from the tip of the bobbin holder just before the turret of the cradle. When the support device is released from the tip of the bobbin holder, the tip of the bobbin holder descends and flexes under the weight of the wound package.

For this reason, there is a problem in that the bobbin holder, which is rotating at high speed just in front of the turret, vibrates. In addition, the cradle rotates (turret) after the support device is released, but if the bobbin holder is rotated with cantilever support, the bobbin holder will shake and vibrate due to the inertia generated by the movement in the turret and the shock when the turret table stops. There is also the problem of inducing Furthermore, in a structure where the shaft passes through the resonance point of the bobbin holder before stopping the bobbin holder during winding, in the above-mentioned cantilever type, the bobbin holder will vibrate greatly, which may damage the bobbin holder or collapse the package. There is a problem.

[Purpose of the invention]

In view of the above-mentioned problems, the present invention has been developed to prevent vibration and damage to the bobbin holder and collapse of the package even with a small diameter and long bobbin holder, to provide high safety during winding, and to use a small diameter bobbin in large quantities. of yarn (long), and 1
The purpose of this invention is to provide a bobbin holder that can simultaneously hold a large number of bobbin holders (multiple ends), thereby reducing the running cost of a winding machine.

[Means to solve the problem]

In order to achieve the above object, the automatic switching winding machine according to the present invention includes a machine frame, a turret table provided on the machine frame so as to be rotatable around the rotation axis, and a turret table arranged equidistantly around the rotation axis. and a plurality of bobbin holders rotatably protruding from the turret table parallel to the co-movement axis,
In a revolving type automatic switching winding machine, in which when the yarn to be wound on one bobbin holder reaches a predetermined amount, the yarn is wound on other bobbin holders sequentially. Automatic switching winding of yarn, characterized in that a support is provided protruding from the turret table, and a plurality of arms that can be engaged with and detached from the end of each of the plurality of bobbin holders are disposed at the tip of the support. I am taking this as an opportunity.

[For production]

In the present invention, since the support is provided to protrude from the turret table so as to be parallel to the rotation axis of the turret table, this support can rotate together with the turret table. An arm provided on this support supports the tip of the bobbin holder during yarn winding, retrieval, and bobbin holder braking, and the bobbin holder is supported at both ends by the turret table and the arms. Therefore, vibration and damage to the bobbin holder and collapse of the package can be prevented, the safety of the winder is improved, and running costs are reduced.

Furthermore, when doffing a bobbin wound with yarn from the bobbin holder and when supplying an empty bobbin to the bobbin holder, the arm can be removed from the tip of the bobbin holder without causing any trouble to the work.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

1 is a front view of an automatic switching winder according to the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a partial sectional view taken along the line AA in FIG. A cross-sectional view of the root is shown.

As shown in Figure 4, the roller 45 is attached to the frame (machine frame) 1-.
The turret I/table 2 is connected to the rotation axis X (1st -
(see Fig. 2). In the turret 1 and table 2, a plurality of (two in the illustrated embodiment) bobbin holders 4, 5 (FIGS. 1 and 2) are arranged equidistantly around the co-movement axis X (in the illustrated embodiment). 4, it is protruded at an angle of 180° across the pivot line X, and supported by bearings 43 and 44 (FIG. 4) so that it can rotate freely.

In Figures 1 and 2, Turret Table 2
A support 3 is provided protruding from the turret table 2 between the two bobbin holders 4 and 5 at the center thereof, that is, at the position of the rotation axis X.

Arms 6A, 6B are attached to the free ends of the pillars 3 with pins 16A,
16B (Fig. 3).

As shown in FIG. 3, a hydraulic cylinder 18A is provided at the free end of the column 3 opposite to the turret table 2, and a rod 21A connected to a piston 22A of the hydraulic cylinder 18A is connected to a joint 17A and a pin 15A. It is connected to the arm 6A via. Similarly, fluid pressure cylinder 1. 8B (not shown) is connected to arm 6B. Note that 2OA is a spring that biases the piston 22A, and 23A is an O-ring that seals the piston 22A.

In FIG. 3, shafts 7A and 7B facing the turret arm 2 are fixed to the tips of the arms 6A and 6B.

Since the two bobbin holders 4 and 5 have the same structure, the bobbin holder 4 will be described below.

In the groove formed on the circumferential surface of the shaft 7A fixed to the arm 6A,
A ring 25A made of an elastic material such as Gol1 and having a circular cross section is attached.

A hole is formed at the tip of the shaft]-4A of the bobbin holder 4, and a bearing 26A is fixed to this hole.

The ring 25A is engaged with the inner ring of the bearing 26A. In other words, there is a minute gap (0.00 mm) between the inner diameter of the inner ring and the shaft 7A.
(preferably about 0.05 to 1 mm), which prevents the bearing life from being shortened and vibration from occurring due to misalignment caused by the shaft 4 being supported at three points, bearings 43A, 44A, and 26A. .

As shown in FIG. 3, on the outer periphery of the shaft 14 of the bobbin holder 4 protruding from the turret table 2, there are a sleeve 30A1, tapered members 32A1, 33A1, sleeve 34A1, tapered members 32A2, 33A2, and sleeve 34A2. They are installed alternately, and the bobbin holder 4
The bobbins 48A1 to 48A8 mounted on the bobbins 48A1 to 48A8 are held by the tapered portions 32A1 to 32A16 and 33A1 to 33A16, respectively.

That is, a piston 28A equipped with an O-ring 31A is provided in a hole at the tip of the shaft 14A, and the piston 28A is provided with an O-ring 31A.
The collar portion 42A of the shaft 40A fixed to the shaft 8A and the shaft 1
A force is generated by a disk spring 41A installed between the collar 38A fixed to the sleeve 30A, and this force causes the sleeve 30A to move through the pin 29A fixed to the piston 28A.
A force acts on the sleeve 30A to press the sleeve 30A in the axial direction of the bobbin holder 4 (to the right in FIG. 3), thereby generating a bobbin gripping force.

In FIG. 1, a predetermined amount of yarn 49B is wound onto a bobbin 48B attached to the bobbin holder 5, and the turret table 4 rotates 1800 times to switch the yarn Y onto the bobbin 49A attached to the bobbin holder 4. The figure shows a state in which the yarn 49A is being wound up.

A slide block 12 is provided on the frame 1 so as to be movable left and right, a frame 9 projects from the slide block 12, and a friction roller 10 rotatably driven by a motor (not shown) is attached to the frame 9.

The friction roller 10 is pressed against the yarn 49A on the bobbin attached to the bobbin holder, and frictionally drives the bobbin holder 4.

In addition, a traverse device 11 of a known type is protruded from the slide block] 2 in parallel with the friction roller 10, and the yarn Y is reciprocated in a direction perpendicular to the plane of the paper as shown in Fig. 1 by a traverse guide 1]-a. After the yarn Y is printed on the friction roller 10, it is wound onto a bobbin.

Above the traverse device 11, there is a thread removal plate 1 for removing the thread from the traverse guide 1]a when switching the thread.
3 is provided to swing around a pin 13a in the direction of the friction roller 10 by suitable means such as a hydraulic cylinder (not shown). Thread removal plate 1 corresponding to the center of the cheek in the length direction of each bobbin installed in the bobbin holder
-3 position has traverse guide 1. A ■-shaped groove is formed for positioning and holding the yarn Y separated from 1a.

Next, the yarn switching method in this winder will be briefly explained. In the step before the state shown in FIG. 1, the friction roller 10 is pressed against the bobbin holder 5, and the yarn 49B is wound around the second bobbin of the bobbin holder 5''.

When the yarn 49B reaches a predetermined amount, the bobbin holder 4 on the back side is sped up to a predetermined rotation speed by a motor (not shown).

Next, the turret table 2 is rotated counterclockwise in FIG. The threads are regulated by the above-mentioned ■-shaped grooves to be located at the center of the cheek of each bobbin 48, and the threads are swung toward the outer periphery of the thread 49 wound on the bobbin holder 5 and at the center of the cheek of the winding width. Each one has a punch roll.

A thread gripper is provided near the center of the winding width of the bobbin 48A, and after the above-mentioned punch winding, the thread gripper of the bobbin 48A attached to the bobbin holder 4 located at the winding position shown in FIG. After the yarn Y is gripped by the groove, the yarn removal plate 13 is returned to its original position.

The yarn Y is caught by the traverse guide 11a, traversed by a predetermined width, and wound onto the bobbin 48A, and the turret table 2 is fixed to the state shown in FIG. The bobbin holder 5 is stopped by a brake device (not shown). When it is confirmed that the bobbin holder 5 has stopped by a signal from a limit switch or controller (not shown), the column 3
Pressurized air is supplied to the front cylinder chamber of the cylinder 18A provided in
is bowed, and the arm 6A rotates around the pin 16A from the state shown in FIG. 3 via the joint 17A1 and the pin 1.5A. As a result, the shaft 7A at the tip of the arm 6A comes out of the inner ring of the bearing 26A at the tip of the bobbin holder 5.

Next, compressed air is supplied from the hollow hole 1.4Aa (FIG. 4) of the shaft 14A at the rear of the bobbin holder 5, and the compressed air acts on the piston 28A, compressing the leaf spring 41 2 1A and passing it through the pin 29A to the sleeve 30A. moves to the left in FIG. As a result, the Taper pieces 32A1, 3 3 A]. relaxes. Sequentially, the sleeve 34A1 and the tapered pieces 32A2 and 33A2 are loosened, and the chucks of the bobbins 48A1 to 48A8 are loosened. Next, the extrusion device 50 (see FIG. 2) moves forward along the bobbin holder, and the bobbins 48A] to 48A8 are extracted from the bobbin holder 5.

When the extrusion device 50 returns to its original position, manually
The machine also places empty bobbins 48A1~ in the bobbin holder.
48A8 is installed.

Next, when compressed air is supplied to the rear cylinder chamber of the cylinder 18A of the strut 3, the arm 6A becomes the state shown in FIG. 3, and the shaft 7A engages with the inner ring of the bearing 26A via the ring 25A.

Although the above embodiment describes a friction drive type winder, the present invention can also be applied to a spindle drive type winder.

The above embodiment describes a winding machine that switches elastic yarns, and when switching yarns, the yarns are positioned at the center of the 1-rubber stroke.
The present invention can also be applied to devices implementing other known yarn switching methods, such as positioning the yarn at the end of the traverse stroke.

In the above embodiment, a device in which the turret table rotates in the same direction as the rotation direction of the bobbin holder has been described.
The present invention can also be applied to an apparatus in which the rotating direction of the turret table and the rotating direction of the bobbin holder are opposite to each other.

In the above embodiment, as shown in FIG. 5, the width W of the strut 3 was made smaller than the outer diameter D of the bobbin, but the width W of the strut 3 may be made larger than the outer diameter D of the bobbin.

Note that if the width W is larger than the outer diameter D, or if the rotation direction of the bobbin holder and the rotation direction of the turret table are opposite, the yarn may come into contact with the support 3 and break when switching, or the yarn may break. There is a risk that fuzz may occur. In order to prevent this, it is preferable to arrange a guide roller 51 using a guide, an air bearing, a bearing, etc. at the corner of the support column 3 (FIG. 6). In this case the guide or guide roller is
It may extend over the entire length of the bobbin holder, or it may be provided only at the location where the yarn of each bobbin is located at the time of switching.

Further, in the second embodiment, the shaft 7 is fixed to the arm 6, and the ring 25 is attached to the shaft 7 so as to engage with the inner ring of the bearing 26. However, the shaft 7 may be directly engaged with the inner ring of the bearing without using the ring 25. In this case, the shaft 7 provided at the tip of the arm 6 may be slid in the axial direction by a fluid pressure cylinder 50 or the like (Fig. 7), or the entire arm 6 may be moved in the axial direction together with the shaft 7. (FIG. 9), and may also be reversed around the support column 3 if necessary (FIG. 8).

In the above embodiment, the column 3 is provided in a cantilevered manner protruding from the turret table 2, and the arms 6A, 6 are attached to the tip of the column.
I installed B. Furthermore, as shown in Fig. 1-0, a frame 60 for supporting the tip of the column is protruded from the machine frame, and the frame 6
The rigidity of the support 3 may be further improved by rotatably supporting the tip of the support 3 and supporting the support 3 at both ends, so to speak.

〔Effect of the invention〕

According to the present invention, a support is provided protruding from the turret/table, and an arm is attached to this support to support the tip of the bobbin holder both during winding and during the turret, so that the bobbin holder is supported at both ends. Even in a small-diameter and long bobbin holder, no vibration occurs, and fatigue damage to the shaft due to moment l and load acting on the shaft due to the weight of the package can be prevented.

Conventionally, particularly in small-diameter, long bobbin holders, when supported in a cantilevered manner, resonance points exist in the low-speed range, and it has been impossible to manufacture bobbin holders that use the low-speed range. However, according to the present invention in which both ends are supported, it is possible to move the resonance point out of the range of use.

Therefore, according to the present invention, an automatic switching winder with high safety and low running cost is provided.

[Brief explanation of drawings]

Figure 1 is a front view of the automatic uJ rewinding machine according to the present invention, 1
6. Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a plan view of Fig. 1. -A sectional view, FIG. 4 is a sectional view of the root of the bobbin holder 4, FIG. 5 is a B-B sectional view of FIG. 7 is a partially sectional plan view showing a bobbin holder and pin retaining portion in another embodiment; FIG. 8 is a front view showing the operating state of the arm in another embodiment; FIG. Figure 9 is a sectional view of C in Figure 8.
FIG. 10 is a front view of an automatic switching winder in another embodiment. 1... Machine frame, 2... Turret table, 3... Strut, 4, 5... Bobbin holder, 6, 6A, 6B... Arm, 7, 7A... Shaft, 9... Frame , 10・
Friction roller, X...rotation axis, Y...yarn. Figure 5 Figure 6 Figure 9 Figure 1 “Procedural amendment (method) 1. Case Description 1999 Patent Application No. 19]. No. 682 2. Name of the invention Automatic yarn switching winding machine 3. Address related to the case of the person making the amendment: 550

Claims (1)

[Claims] 1. A machine frame, a turret table provided on the machine frame so as to be rotatable around the rotation axis, and the turret table equidistantly arranged around the rotation axis and parallel to the rotation axis; Consists of multiple bobbin holders rotatably protruding from the
In a revolving type automatic switching winding machine, in which when the yarn to be wound on one bobbin holder reaches a predetermined amount, the yarn is wound by sequentially switching to other bobbin holders. An automatic yarn switching winding machine characterized in that a support is provided protruding from the ret table, and a plurality of arms that can be engaged with and detached from the ends of the plurality of bobbin holders are disposed at the tip of the support. .