JPH06247624A - Winding method for winder - Google Patents

Abstract

PURPOSE:To form a cone causing no cob-webbing and no shape collapse and having a good shape by making the penetrating path to a yarn winding drum changeable in relation with the rotation of a cradle arm as the winding diameter is increased so that the coupling angle between a yarn and the grooved drum is kept nearly constant. CONSTITUTION:A guide member (g) is located near the lower end section (solid line position) of a grooved drum D at the winding start of a cone P, a link r1 is rotated clockwise interlockingly with a cradle arm A rotated clockwise as the winding diameter is increased, and the guide member (g) is rotated upward (broken line) via links r2, r3. A yarn Y is also moved upward by the rotation of the guide member (g), the coupling position between the yarn Y and the grooved drum D is shifted from a point (a) to a point gamma and coupling range between the yarn Y and the grooved drum D is reduced as compared with the conventional one. The coupling angle y between the yarn Y and the grooved drum D is kept nearly constant, and the winding condition of a winder is made invariably constant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winder winding method for winding a yarn wound around a spun yarn or the like on a suitable package such as a corn or cheese while traversing the yarn.

[0002]

2. Description of the Related Art Conventionally, a winder is wound around a suitable package such as a cone in which the yarn is wound in a taper shape or a cheese in which the yarn is wound in a cylindrical shape while traversing the yarn. As one of the methods, a cheese is driven by a cylindrical drum having a traverse groove on the surface and the yarn is traversed and wound up, so-called, a method of winding a yarn by a rotary traverse winder is known. Has been.

[0003]

FIG. 4 is a schematic side view of the essential parts of a conventional rotary traverse winder.
Also, a cylindrical drum having a traverse groove on the surface in the X direction in FIG. 4 and a package (hereinafter, a case where a yarn wound around a spinning tube yarn or the like is rewound on a cone will be described as an example. The problem to be solved by the invention will be described with reference to FIGS.

In FIG. 4, D is a cylindrical drum (hereinafter, simply referred to as "grooved drum") which comes into contact with the cone P to drive the cone P to rotate and to traverse the yarn with grooves formed on the surface. Is. The cone P is supported by a well-known cradle arm A, and the cradle arm A is shown by a chain line from the position supporting the small diameter cone P in the winding start state shown by the solid line with the point Ca as the center. It is configured to rotate clockwise in the direction in which the large-diameter cone P is supported as the winding diameter increases.
At the winding start position indicated by the solid line, the cone P
Is the center point Cp of the cone P and the center point C of the grooved drum D.
It is arranged so as to be located on a substantially vertical line connecting d, and as the yarn Y is wound, the center point Cp of the cone P is
Is configured to rotate clockwise around the rotation center point Ca of the cradle arm A.

In the winding start state, the yarn Y has a point a.
At the point b, it comes out of the grooved drum D at the point b, after it engages with the grooved drum D at
To be wound up. Therefore, the yarn Y is engaged with the grooved drum D by the angle α in the winding start state. On the other hand, when the diameter of the cone P increases as the winding progresses, after engaging with the grooved drum D at the point a, the bottom D'of the groove is contacted and the cone D exits from the grooved drum D at the point c. And is wound up on the cone P. Therefore, when the winding progresses and the diameter of the cone P increases, the yarn Y is engaged with the grooved drum D by the angle γ, and the winding progresses and the diameter of the cone P increases. Becomes larger, the angle at which the yarn Y engages with the grooved drum D becomes larger.

Further, along the line connecting the center points Cd and Cp of the grooved drum D and the cone P respectively, the positional relationship between the grooved drum D and the cone P viewed from the arrow X on the grooved drum D side is shown. As shown in FIG. 5, which represents the yarn Y
Of the cone D on the line connecting the central points Cd and Cp of the grooved drum D and the cone P, the large diameter portion Pd of the cone P and the nose of the grooved drum D are almost the same. It coincides with the end Dn.

By the way, as described above, when winding the yarn Y around the cone P, the contact point c'on the line connecting the center points Cd and Cp of the grooved drum D and the cone P, respectively.
However, at a point c ′ that substantially coincides with the large diameter portion Pd of the cone P and the nose portion end portion Dn of the grooved drum D, the yarn Y is disengaged from the nose portion end portion Dn of the grooved drum D and folded back. If it is wound around P, problems such as twisting or defective shape of the cone P as described below do not occur.
Generally, as shown in FIGS. 4 and 6, the nose end Dn of the grooved drum D has a contact point c ′ on the line connecting the center points Cd and Cp of the grooved drum D and the cone P, respectively. The yarn Y may be disengaged from the nose end Dn of the grooved drum D at the time when the yarn Y moves from the point c to the point c.

As shown in FIG. 6, the nose end Dn of the grooved drum D moves from a contact point c'on the line connecting the center points Cd and Cp of the grooved drum D and the cone P, respectively. Since the point c is located away from the large-diameter portion Pd of the cone P toward the end Pt of the cone P, the yarn Y jumps out from the end surface Pf of the cone P, which is so-called twill deviation. Further, the point c at which the yarn Y deviates from the end Dn of the nose portion of the grooved drum D is larger than the contact point c ″ between the yarn Y and the cone P where the yarn Y is wound around the cone P. Since the yarn Y is located on the side of the end Pt of the cone P from the diameter Pd, the yarn Y is pulled in the direction of the end Pt of the cone P, and thus the edge P of the cone P is pulled.
Since e is formed in a pointed shape, problems such as deformation of the cone P or defective release of the yarn Y are caused.

An object of the present invention is to solve the problems of the conventional winding method of a winder as described above, and to wind a winder for forming a cone P having a good shape with no twill and shape loss. It is to provide a taking method.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a rotation of a cradle arm with an increase in winding diameter so that an engaging angle between a yarn and a grooved drum becomes substantially constant. The present invention relates to a winding method of a winder, in which an entry route of a yarn to a grooved drum is changed in association with movement.

The present invention will be described below based on examples, but the present invention is not limited to these examples without departing from the gist of the present invention.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an embodiment of the present invention will be described with reference to FIG. 1 which is a schematic side view of a main part of a winding device for carrying out the winding method for a winder according to the present invention. In FIG. 1, g is a guide member that is arranged in parallel along the axis of the grooved drum D, and the guide member g is a link r that is rotatable about the center point Cd of the grooved drum D.
It is attached to the tip of 1. Further, one end of a link r2 is pivotally attached at approximately the middle of the link r1, and the other end of the link r2 is pivotally attached to the tip of a link r3 which rotates about the rotation center point Ca of the cradle arm A. ing. The link r3 that rotates about the rotation center point Ca of the cradle arm A interlocks with the cradle arm A that rotates clockwise as the winding diameter of the cone P increases, and the winding diameter of the cone P also increases. Is configured to rotate clockwise in accordance with an increase in

Next, the operation of the guide member g will be described. At the beginning of winding the cone P, the guide member g is
As shown by the solid line in FIG. 1, it is located near the lower end of the grooved drum D. The cradle arm A that rotates clockwise as the winding diameter increases
The link r1 also rotates in the clockwise direction in conjunction with the above, and thus the guide member g also rotates upward as indicated by the dotted line via the links r2 and r3. When the guide member g is rotated upward, the yarn Y is also moved upward as shown by the dotted line, so that the yarn Y moves in the grooved drum D.
The position at which the yarn Y and the grooved drum D are engaged with each other is reduced as compared with the conventional one. As described above, in the present invention, the engagement angle γ between the yarn Y and the grooved drum D when the winding diameter is increased is such that the yarn Y and the grooved drum D at the beginning of winding the yarn Y are The engagement angle α is kept substantially constant, and the winding condition of the winder is always constant.

Further, as the winding diameter increases, the guide member g
Is configured to be rotated clockwise to move the yarn Y upward along the grooved drum D, so that the engagement range between the yarn Y and the grooved drum D when the winding diameter is increased. But,
Since the angle formed by the yarn Y and the perpendicular to the axis of the grooved drum D is smaller than that of the conventional one, and the angle formed by the yarn Y is larger than that of the conventional one, the yarn Y easily comes off the groove of the grooved drum D. 4 and the point c in FIG. 6 moves in the direction of the point c ′ on the line connecting the center points Cd and Cp of the grooved drum D and the cone P, respectively. Therefore,
As described above, the contact point between the grooved drum D and the cone P on the line connecting the respective center points Cd and Cp of the grooved drum D and the cone P, the large diameter portion Pd of the cone P and the nose portion of the grooved drum D. At a point c ′ where the end portion Dn coincides with the end portion Dn, the yarn Y comes close to the ideal winding method in which the yarn Y deviates from the end portion Dn of the nose portion of the grooved drum D and is folded and wound around the cone P. It is possible to solve the problems of the conventional winding method, such as the formation of a cone P having a skewed edge or a sharp edge Pe.

In the above embodiment, the links r1 to r3 are rotated in conjunction with the cradle arm A to move the guide member g, but the cradle arm A is swung. Can be detected by a sensor, and the guide member g can be driven by an appropriate independent drive source such as a motor.

Next, the regulation guide plate is attached to the guide member g.
2 is a schematic front view of the winding portion of the winder attached to FIG. 3 and FIG. 3 is a perspective view of the regulation guide plate and the like, for preventing the end face drop of the yarn y attached to the guide member g. The regulation guide plate will be described. Conventionally, when the traversed yarn Y is cut during winding, the cut yarn Y pops out beyond the traverse width, and the cutting end is defectively wound around the shaft of the grooved drum D or the bobbin supporting shaft. It was generating corn. In order to prevent such cut yarn Y from jumping over the traverse width, conventionally,
The regulation guide plate E for preventing the end face from falling is attached to the machine base of the winder so as to be located near the lower end of the grooved drum D.

However, as the winding diameter of the cone P increases, from the regulation guide plate E attached to the machine base of the winder to the contact point c ″ between the yarn Y and the cone P where the yarn Y is wound around the cone P. Because the distance of
When the winding diameter of the cone P becomes large, for example, when the yarn Y is cut near the contact point c ″ between the yarn Y and the cone P, the yarn Y passes over the regulation guide plate E. The protrusion ends and the cut end is wound around the shaft of the grooved drum D or the bobbin supporting shaft.

Therefore, by attaching the regulation guide plate E to the above-mentioned guide member g which rotates clockwise in conjunction with the cradle arm A which rotates as the winding diameter increases, the regulation guide plate E is removed. The yarn Y is wound around the cone P so that the distance to the contact point c ″ between the yarn Y and the cone P is always substantially constant.

With the above construction, the cone P
Even when the yarn Y is cut when the winding diameter of the yarn becomes large, the yarn Y jumps over the regulation guide plate E,
It is possible to prevent the cutting end from winding around the shaft of the grooved drum D or the bobbin supporting shaft, and thus to reduce the occurrence of defective cones.

The regulation guide plate E itself has a known structure, and its structure will be described with reference to FIG. Reference numerals 1 and 1'represent a substantially triangular front plate of the regulation guide plate E, and 2 is a back plate disposed behind the front plates 1 and 1'with a predetermined distance from the front plates 1 and 1 '. The front plates 1 and 1'and the back plate 2 are attached to the side plates 3 and 3'of the regulation guide plate E. The opposite ends of the side plates 3 and 3'to which the front plates 1 and 1'and the back plate 2 are attached are attached to the guide member g by suitable fasteners such as screws 4 and 4 '.
Configured to be attached to. The front plate 1, 1 ', the back plate 2, and the side plates 3, 3'are preferably integrally formed of synthetic resin or the like. 2 and 3
In the figure, 5 is a known yarn guide member for guiding the yarn Y.

The operational effects of the above-described embodiments of the present invention will be listed below. Since the guide member g is rotated clockwise in accordance with the increase in the winding diameter to move the yarn Y upward along the grooved drum D, the engagement range between the yarn Y and the grooved drum D is increased. However, compared to the conventional one, the perpendicular line and the yarn Y which are reduced and are orthogonal to the axis of the grooved drum D
Since the angle formed by the yarn becomes larger than that of the conventional one, the yarn Y is easily disengaged from the groove of the drum D, and therefore, the conventional winding method such as the misalignment of the yarn or the cone P having the sharp edge portion Pe is formed. The problem of can be solved.

By rotating the guide member g upward as the winding diameter increases, the engagement angle γ between the yarn Y and the grooved drum D when the winding diameter increases increases the winding angle of the yarn Y. Since the engaging angle α between the yarn Y and the grooved drum D at the beginning is kept substantially constant, the winding condition of the winder is always constant.

By attaching the regulation guide plate E to the guide member g that rotates clockwise in conjunction with the cradle arm A that rotates as the winding diameter increases,
Even when the yarn Y is cut when the winding diameter of the cone P becomes large, the yarn Y jumps out beyond the regulation guide plate E, and the cut end is wound around the shaft of the grooved drum D or the bobbin supporting shaft. It is possible to prevent sticking and thus reduce the occurrence of defective cones.

[0024]

Since the present invention is constructed as described above, it has the following effects.

Since the guide member is rotated clockwise in accordance with the increase in the winding diameter to move the yarn upward, the engagement range between the yarn and the grooved drum is reduced as compared with the conventional one. Since the angle formed by the thread and the perpendicular line that is orthogonal to the axis of the grooved drum is large, the thread is easily disengaged from the groove of the grooved drum, and thus a twill or a cone with a sharp edge is formed. The problems of the conventional winding method can be solved.

By rotating the guide member upward with an increase in the winding diameter, the engagement angle between the yarn and the grooved drum when the winding diameter increases increases with the yarn at the beginning of winding the yarn. Since the engagement angle with the grooved drum is kept substantially constant, the winding condition of the winder is always constant.

[Brief description of drawings]

FIG. 1 is a schematic side view of a main part of a winding device for carrying out a winder winding method of the present invention.

FIG. 2 is a schematic front view of a winding portion of a winder in which a regulation guide plate is attached to a guide member.

FIG. 3 is a perspective view of a regulation guide plate and the like.

FIG. 4 is a schematic side view of a main part of a conventional winder winding device.

5 is an arrangement relationship diagram of a grooved drum and a package viewed from the X direction in FIG.

FIG. 6 is a layout diagram of the grooved drum and the package viewed from the X direction in FIG.

[Explanation of symbols]

 D: Grooved drum E: Regulation guide plate P: Cone g: Guide member

Claims (1)

[Claims] 1. An approach path of a yarn to a grooved drum is changed in association with a rotation of a cradle arm with an increase in winding diameter so that an engagement angle between the yarn and the grooved drum becomes substantially constant. Winder winding method characterized in that.