JPH04345473A - Take-up method and traverse take-up device for yarn - Google Patents

Abstract

PURPOSE:To provide a TR winder preferable for a yarn take-up method which completely prevents the occurrence of ribboning, and also preferable for the execution of the take-up method, in a simple manner and in a simple structure. CONSTITUTION:The guide in a shape of the teeth of a comb, which is moved vertically and is equivalent in width to a grooved drum, is disposed just in front of the upstream in the yarn line flow direction of the grooved drum while being directed upward at its open end and also being disposed in parallel with the axis of the grooved drum, and the yarn line on the way, which is taken up while being traversed, is separated from the groove of the grooved drum with the traverse of the yarn line restrained temporarily by the guide in a shape of the teeth of a comb which is vertically moved intermittently at a given position within the width of traverse, by the use of a traverse take-up device comprising a braking mechanism of the bobbin holder of a bobbin which is rotated while being brought into contact with the grooved drum. The running yarn line is made to run repeatedly at random in a space interspaced with an adjacent groove during the period of the restraint, and a slippage is allowed to take place in traverse over the grooved drum, so that the take-up rotation of the take-up bobbin is thereby intermittently suspended or decreased in speed simultaneously.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a traverse winding method and device (rotary, traverse,
More specifically, the present invention relates to a winding method and device for preventing ribbon winding by disturbing the traverse in traverse winding and making the winding speed irregular.

0002

2. Description of the Related Art Conventionally, a traverse winder (hereinafter referred to as an RT winder) has been used to rewind yarn.

) are widely used. This RT winder rotates a drum provided with a spiral groove and rotates corn or cheese that is in contact with the surface of the drum. At the same time, the winding yarn is guided along the groove and traversed, while winding a package for winding. It is a drum winder designed to wind the thread in a single direction, and performs the two operations of winding the thread and traversing the thread at the same time. Unlike the so-called QT winder, there is no need to perform reciprocating movement of the thread guide, and it is capable of high-speed winding. It is widely used as a winder suitable for winding.

0004

[Problems to be Solved by the Invention] Generally, with RT winders, threads gather at the same position on the corn or cheese during winding, creating a curling habit called "ribbon winding" having a certain width, which causes the winding to be released. The disadvantage is that unevenness occurs, and various studies have been made to prevent this.

For example, a method of changing the contact position between the drum and the package by slipping the package onto the drum;
There are methods that use a variable speed gear, an electric method that cuts off and on the electric circuit of the motor, a method that cuts the contact between the bobbin and the drum, and a method that makes the drum groove have a specific shape.Each method can prevent the above-mentioned ribbon winding. measures are being implemented. However, all of these methods are designed to suppress the occurrence of ribbon winding and reduce the width of the ribbon that occurs to avoid the occurrence of uneven release, and it is not possible to completely eliminate ribbon winding. This has not yet been achieved.

[0006] Furthermore, the occurrence of this ribbon winding causes periodicity in the colored portions of the thread when, for example, only the side surfaces of the thread wound around corn or cheese are colored to make a thread Kasuri. This is a factor in not being able to obtain products.

The present invention has been made to solve these problems, and includes a yarn winding method that completely prevents the occurrence of ribbon winding, and a suitable RT for carrying out the winding.
It provides a winder.

[0008]

[Means for Solving the Problems] In order to achieve the above object, the gist of the present invention is to provide a yarn winding method using a traverse winding device that winds a yarn while traversing it using a grooved drum. A comb blade-shaped guide that moves up and down intermittently at any position within the traversing width temporarily restrains the traversing of the yarn and grooves the yarn while it is being wound. While the yarn is released from the groove of the drum and is restrained, the yarn running along the groove of the grooved drum is repeatedly run randomly between adjacent grooves, and the grooved drum is The winding bobbin, which rotates in contact with the grooved drum, intermittently stops or decelerates the winding rotation of the winding bobbin. A traverse winding device in which a rotating drum that rotates a bobbin is provided with a spiral groove for guiding and traversing the yarn, and the traversing and winding of the yarn are performed simultaneously. The upstream portion in the yarn flow direction has a traverse width of the grooved drum, is arranged with the open end facing upward and parallel to the grooved drum shaft, and moves up and down in conjunction with the rotation of the grooved drum or independently. A comb-like guide is disposed, and a brake lining is formed on the bobbin holder side end of the bobbin that rotates in contact with the grooved drum.
A brake mechanism having a brake terminal that presses the brake lining intermittently is provided.

The present invention will be explained in detail below with reference to the drawings. FIG. 1 is a process diagram showing an example of the yarn winding method of the present invention, in which 1 is a yarn feeding cone, 2 is a guide,
Reference numeral 3 indicates a traversing drum with grooves, 4 indicates a winding bobbin held by a cradle 7, 5 indicates a comb-shaped guide which is a main part of the present invention, and 6 indicates a lifting mechanism for the comb-shaped guide 5. There is. FIG. 2 is a side view showing the main parts of the RT winder of the present invention. It includes an elevating mechanism 6 for elevating and lowering, and a bobbin holder cradle 7. Figure 3 shows the comb-shaped guide 5.
4 is a front view of the cradle 7, and FIG. 4 is a side view showing the braking mechanism 13 attached to the cradle 7.

[0010] The present invention provides a comb-like blade which is intermittently raised and lowered by an elevating mechanism 6 immediately before the traversing drum 3 and which intermittently restrains the yarn A running along the grooves of the traversing drum 3. A lifting guide 5 is provided, and a braking mechanism 13 is provided at the winding section.
Using an RT winder equipped with a By implementing these devices and methods, it is possible to prevent the ribbon winding that occurs when the yarn is wound back, and also to reduce the period of the pattern when producing products such as yarn kasuri. It is designed to prevent sexual damage.

[0011] The present invention will be explained in more detail below along with the operation and flow of the yarn based on the drawings. In FIG. 1, a yarn A pulled out from a yarn feeding cone 1 passes through supply guides 2, 2, . . . while its tension is adjusted, and reaches a rotating traversing drum 3 as shown in FIG. Twill drum 3
A spiral groove 8 formed by intersecting a plurality of grooves on the surface of the
8, .

At this time, in the method of the present invention, the thread A, which is being guided and traversed along the spiral groove 8 formed on the surface of the traversing drum 3, is intermittently moved by the lifting mechanism 6. The comb blades 9 of the comb blade-shaped guide 5 that move up and down are restrained when they rise, thereby temporarily suppressing the traverse movement.

As shown in FIG. 2, the elevating mechanism 6 includes an electric motor M that rotationally drives the traversing drum 3.
A rotating cam 6-1 is fixed to the output shaft end of the speed reducer, and a swinging rod 6-3 is disposed so that a roller 6-2 at the tip thereof comes into elastic contact with the rotating cam 6-1. The swinging rod 6-3
are connected to the comb-shaped guide 5 via link mechanisms 6-4 and 6-5. In addition, in FIG. 2, 5-1
is a support rod of the comb-shaped guide 5, and 5-2 is a guide member that slides and guides the support rod 5-1 up and down.

[0014] The running yarn A whose traverse movement has been suppressed leaves the spiral groove 8 formed on the surface of the traversing drum 3, and is held in the adjacent spiral groove 8 at the next moment. . Here, the comb blade 9 is once lowered and the running yarn A travels a certain section along the spiral groove 8, and then the comb blade 9 is raised again and restrains the running yarn A, causing its traverse movement. is suppressed, and the spiral groove 8 on the surface of the traversing drum 3
depart from. This detachment operation continues while the yarn A, which is running while being traversed, is restrained by the comb blades 9 due to the upward movement of the comb-shaped guide 5, and is continued as long as the yarn A, which is running while being traversed, is restrained by the comb blades 9 due to the upward movement of the comb-shaped guide 5. This continues until A separates from the comb-shaped guide 5 and the restraint state is released.

When the running yarn A leaves the surface of the traversing drum 3 and is held in the adjacent spiral groove 8, the traversing drum 3 is rotating at high speed and the spiral groove Since the position of the groove 8 constantly changes, the next time it is held, it will be held at a randomly changing groove position, causing a slight deviation in the traverse period at random. Then, the yarn A is newly restrained at a random position by the next rise of the comb-shaped guide 5, and by repeating the above-mentioned action, the yarn A is placed at an unspecified arbitrary position during the unwinding process. This will cause a shift in the traverse. Note that this vertical movement may be performed at regular intervals, but it will be more effective if it is performed randomly. The comb-shaped guide 5 moves up and down in parallel to the axis of the traversing drum 3. As for the rising width, the yarn A running while being guided and traversed along the spiral groove 8 formed on the surface of the traversing drum 3 is caused by the comb blade 9 to
It is sufficient that the distance is such that it can be separated from the spiral groove 8 formed on the surface of the traversing drum 3, and there is no need to significantly lift the traveling yarn A. Further, the degree of descent can be arbitrarily set within a range in which the restrained traveling yarn A is completely released from restraint and does not come off from the spiral groove 8.

The comb-shaped guide 5 according to the present invention has a width corresponding to the entire width of the traversing drum 3, as shown in FIG.
Moreover, the upper part is an open end, and it is provided so that it can move up and down parallel to the drum axis of the traversing drum 3.

The depth of the comb blades 9 provided on the comb blade-shaped guide 5 is preferably about 20 to 30 mm. If it is too shallow, the holding when restraining the yarn A will be insufficient, and if it is too deep, it will be difficult to separate the yarn A from the comb blade 9. Note that the depth of the spiral groove 8 of the traverse drum 3 varies depending on the position of the groove 8, and if the depth of the comb blade 6 is set to correspond to the depth of the groove 8 of the traverse drum 3, This is effective because the yarn A runs smoothly.

The spacing between the comb blades 9 is such that when the yarn A is restrained,
It is preferable that the width (about 10 mm) be such that the thread A running along the groove 8 of the traversing drum 3 is returned to the adjacent groove 8 having a different traverse direction.If the interval is too large, the thread A may There is a possibility that the vibration width will extend over a wide range beyond adjacent grooves 8, resulting in uneven tension. On the other hand, if the interval is too narrow, it will be difficult for the yarn A to separate, which is not preferable.

Furthermore, the shape of the comb blades 9 of the comb blade-shaped guide 5 is as follows:
As shown in FIG. 3, an upright cylindrical one with a smooth tip is preferable, but it is possible to hold the thread A when the running thread is restrained by raising the comb-shaped guide 5. The guide 5 is not limited to the one shown in FIG. 3 as long as it is easy to separate from the comb blade 9 when the comb blade guide 5 is lowered.

The material of the comb-shaped guide 5 is not particularly limited and may be made of metal, engineering plastic, or the like.

The raising and lowering speed of the comb blade-like guide 5 may be set appropriately depending on the purpose and the running speed of the yarn (A). According to the results of experiments, the yarn is wound back using an ordinary RT winder. In this case, about 1 time/sec is sufficient.

FIG. 4 shows the braking mechanism 13 of the winding section for completely preventing the occurrence of ribbon winding in the present invention, which is provided at the tip of the cradle 7 shown in FIG. FIG. 3 is a side view showing an example in which an intermittent braking mechanism is provided to one end of the bobbin holder 10 for winding. In the figure, reference numeral 11 denotes a brake lining, which is provided integrally with the bobbin holder 10 at one end of the winding bobbin holder 10 of the cradle 7, facing the cradle 7. Reference numeral 12 denotes a brake terminal, which is provided so as to be intermittently pressed into contact with the surface of the brake lining 11. The tip of the brake terminal 12 is preferably made of a soft material such as urethane resin in order to achieve smooth braking.

As an example of the braking mechanism 13 for operating the braking terminal 12, a mechanical operating mechanism as shown in FIG. 4 may be used. It can be operated electrically. Briefly explaining the mechanism shown in FIG. 4, a cam member 13-3 having a cam surface is provided at the tip of an operating member 13-2 that reciprocates in the vertical direction in the drawing by a rotary cam 13-1 rotated by a driving means (not shown). is attached to the cam surface of the cam member 13-3, and a rotating rod 13- is attached to one side of the cradle 7 to rotate in the direction of the corresponding side of the bobbin holder 10.
A follower 13-5 is provided at the end of the rotating rod 13-4 on the cam member 13-3 side, and the braking terminal 12 is attached to the end on the bobbin holder side. ing. Therefore, when the rotary cam 13-1 rotates, the actuating member 13-3 reciprocates, and the follower 13-5 of the rotary rod 13-4, which comes into elastic contact with the cam surface of the cam member 13-3, moves toward the cam surface. The brake terminal 12 is moved left and right in the drawing along the arrows 1 and 2, and the brake terminal 12 is intermittently pressed against the brake lining 11 formed on one side of the bobbin holder 10.

In the present invention, when the yarn A is being wound onto the winding bobbin 4, the brake terminal 12 of the brake mechanism 13 shown in FIG. 4 is intermittently pressed into contact with the surface of the brake lining 11. This makes it possible to intermittently decelerate the rotational speed of the winding bobbin 4 while changing it, thereby suppressing the occurrence of ribbon winding.

In this case, a sufficient effect can be expected by intermittently decelerating the rotational speed of the winding bobbin 4 while changing it, but it is also possible to temporarily stop the rotational speed.

In this case, the conditions for intermittently decelerating the rotational speed of the winding bobbin 4 include a deceleration frequency of 0.
．． 5-2.5 times/sec, pressing time 0.05-
0.25sec/time, pressing force 0.5~1.0k
About g/cm2 is sufficient.

[0027]

EXAMPLES The present invention will be explained in detail below using examples using an RT winder equipped with the above mechanism. Yarn used: Acrylic fiber spun yarn 1/52 (M/C) spun in the usual way and cone-wound Device used: Comb-shaped guide made of steel, width 150 mm, pitch 10 mm, number of comb blades 16 The depth of the book/comb blade is 25 mm.The RT winder (conventional method (with a ribbon breaker) was used under the following conditions. The conditions,
・Yarn winding speed: Average 250m, (Max 33
0, Min 170) - Lifting speed of comb-shaped guide: 2 times/sec, lifting width: 1
When the ball was rewound to 7 mm, a well-balanced ball with almost no ribbon winding was obtained. Then, one side of this rewound cheese-wrapped thread was dyed to make Kasuri thread, and when it was knitted, there was no periodicity in the Kasuri part at all, and the dyed parts were randomly distributed, resulting in a beautiful dot Kasuri thread. The product was obtained.

[0028]

Effects of the Invention As is clear from the above description, the RT winder of the present invention has a simple mechanism in which a comb-shaped guide is raised and lowered with respect to the yarn being wound, and can easily traverse the yarn at random locations. Furthermore, by providing a braking mechanism in the winding section, it changes the rotation of the winding bobbin and causes subtle shifts in the winding position.These mechanisms can be used together. By doing so, the occurrence of ribbon winding peculiar to conventional RT winders can be completely prevented. In particular, the dotted kasuri-like fabric produced by cheese-wrapping the yarn obtained by the method of the present invention and dyeing the sides thereof has great effects, such as no lattice pattern due to periodicity.

[Brief explanation of drawings]

FIG. 1 is a process diagram showing an example of the method of the present invention.

FIG. 2 is a side view of essential parts of the device of the present invention.

FIG. 3 is a front view of the comb-shaped guide.

FIG. 4 is a side view of the braking mechanism of the cradle part.

[Explanation of symbols]

1 Yarn feeding cone 2 Yarn feeding guide 3 (Grooved) Traverse Drum 4 Winding bobbin 5 Comb blade guide 5-1 Support rod 5-2 Guide member 6 Lifting mechanism 6-1 Rotating cam 6-2 Koro 6-3 Oscillating rod 6-4, 6-5 Link 7 Cradle 8 (Spiral) groove 9 Comb blade 10 Bobbin holder 11 Brake lining 12 Braking terminal 13 Braking mechanism 13-1 Rotating cam 13-2 Operating rod 13-3 Cam member 13-4 Rotating rod 13-5 Follower

Claims (2)

[Claims] Claim 1: In a yarn winding method using a traverse winding device that winds a yarn while being traversed by a grooved drum, the yarn is wound while being traversely wound.
A comb-shaped guide that moves up and down intermittently at any position within the traversing width temporarily restrains the traversing of the yarn and causes the yarn to separate from the groove of the grooved drum, so that the yarn is restrained. While the yarn is running along the grooves of the grooved drum,
By repeatedly running between adjacent grooves at random, the traverse on the grooved drum is shifted, and at the same time, the winding rotation of the winding bobbin, which rotates in contact with the grooved drum, is made intermittently. A method for winding a yarn, characterized by stopping or decelerating the yarn. 2. A traversing winding device, wherein a spiral groove for guiding the yarn is provided in a rotating drum that rotates a winding bobbin, and the traversing and winding of the yarn are performed simultaneously. In the upstream part of the grooved drum in the yarn flow direction,
A comb blade-shaped guide having the traverse width of the grooved drum, with the open end facing upward, and arranged parallel to the grooved drum shaft, so as to move up and down in conjunction with the rotation of the grooved drum or independently. A brake lining is formed on the bobbin holder side end of the bobbin that is arranged and rotates in contact with the grooved drum, and a brake mechanism having a brake terminal that intermittently presses the brake lining is provided. Characteristic twill winding device.