JPH0920463A - Traverse device for filament yarn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To equalize end face shapes of right/left packages to prevent cob- webbing so as to improve a commodity value of winding form or the like, by tilting a rotational surface, formed by a blade lock mounted on respective rotary shafts of adjacent traverse mechanisms, uniformly in the same direction. SOLUTION: A filament yarn selected from a right to left direction by a blade 17a meets a blade 18a in a traverse end, to release the filament yarn from the blade 17a by the blade 18a. Next the filament yarn is selected from the left to right direction by the blade 18a, and it meets a blade 17c in a right traverse end, to release the filament yarn from the blade 18a, hereafter similarly to carry the filament yarn in a reverse direction. Here in a plurality of units, a rotational locus of set adjacent to each other is partially crossed with each other as viewed by plane, also to arrange adjacent units, when viewed from the vertical direction relating to a surface formed by the filament yarn, so as to tilt at a prescribed angle αuniformly relating to a horizontal straight line H.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn traversing device used when winding a yarn on a bobbin, and more particularly, to a yarn traversing device between rotating blades forming a pair that rotate the yarns in opposite directions. The present invention relates to a device for traversing a large number of yarns while handing over them.

[0002]

2. Description of the Related Art Conventionally, as described in JP-A-5-24740, two rotary shafts attached with rotary blades for traversing a yarn are rotating in opposite directions as a set. One of the adjacent sets of rotary vanes was configured to all rotate synchronously with each other in the same plane.

[0003]

However, in the traverse device described in Japanese Patent Laid-Open No. 5-24740, the mounting heights of the traverse mechanisms of each set are made different, so that the traverse mechanisms belonging to different sets are adjacent to each other. The position where the yarn is released from the rotary vane is different, and thus the winding width of the package wound between the plurality of packages is different. As a result, there has been a problem that the outer diameters of the respective packages are different from each other, which causes misalignment.

[0004]

It is an object of the present invention to allow a plurality of yarns traversed at the same time to be released from a blade at the same distance from a contact roller, and the left and right packages have the same end face shape so that the yarn does not come off. It is an object of the present invention to provide a traverse device.

[0005]

SUMMARY OF THE INVENTION In the present invention, the above problems are solved for each of a plurality of juxtaposed bobbins.
Two shafts, which are substantially orthogonal to the bobbin shaft and rotate in opposite directions to each other, are provided as a set on the upstream side of the bobbin shaft. A thread in which a plurality of traverse mechanisms arranged to form two rotating surfaces when a blade attached to a rotary shaft of a book is arranged adjacent to each other so that the rotation loci of adjacent blades partially intersect each other. In a traverse device for a yarn, when traversing the yarn by the traverse device, a blade fixed to each rotary shaft of an adjacent traverse mechanism is formed when viewed from a direction perpendicular to a surface formed by the yarn. This is achieved by a yarn traverse device characterized in that the rotating surfaces are uniformly inclined in the same direction.

Here, it is preferable that the inclination degree of the rotating surface of the present invention is such that, at the traverse end of each set, the distance from the respective blades where the yarn is released and the distance to the contact roller are the same.

[0007]

In the present invention, when the yarn is traversed by the traverse device, the blades fixed to the respective rotary shafts of the adjacent traverse mechanisms when viewed from the direction perpendicular to the face formed by the yarn are Since the surface to be formed is inclined, the positions of releasing the yarn from the blade at both ends of the traverse are almost the same for each package. For this reason, the left and right packages have the same end surface shape, and the traverse does not occur.

[0008]

The present invention will be described in detail below with reference to the illustrated embodiments of the present invention. 1 is a front view of a contact roller and a traverse device, FIG. 2 is a view seen from an arrow A in FIG. 1, FIG. 3 is a view seen from an arrow B in FIG. 1, FIG. 4 is a detailed view of a portion C in FIG. FIG. 5 shows a sectional view taken along line XX in FIG.

In FIG. 5, reference numeral 1 denotes a main body of the traverse mechanism, and a shaft 2 is provided in a shaft fixing hole 1a formed in an upper portion of the main body 1.
Is inserted and fixed to the main body 1.

The hollow shaft 3 has a cylindrical shape and is rotatably supported by bearings 4a and 4b fitted in the lower portion of the shaft 2. An external gear 3a is integrally formed on the outer periphery of the upper portion of the hollow shaft 3. A distance piece 31 is mounted between the bearings 4a and 4b, and the retaining ring 5 fixes the hollow shaft 3 and the bearings 4a and 4b to the shaft 2.

The hollow shaft 6 has a cylindrical shape, and has a size capable of accommodating the hollow shaft 3 described above in its hollow portion, and the main body 1 is provided with bearings 14a and 14b attached to the outer periphery of the hollow shaft 6. It is rotatably supported in the lower recess 1b. A bearing retainer 15 is attached to the main body by a bolt 16 and retains the bearing 14b.

A recess 1b is formed on the lower side of the main body 1, and an opening 1c communicating with the recess 1b is formed in parallel with the shaft fixing hole 1a. Bearings 8a, 8 mounted in the opening 1c
The shaft 7 is rotatably supported by the body 1 by b. The retaining ring 9 has a bearing 8a fixed to the main body 1, and the distance piece 10 has a bearing 8a, 8a.
It is inserted between b.

A screw gear 11 is fixed to a shaft 7 protruding from the main body 1, and external gears 7a and 7b are attached to the lower part of the shaft 7.
Are formed integrally with the shaft 7 in the upper and lower directions, or are separately formed and then integrally attached.

An internal gear 12 is mounted on the hollow shaft 6 by a bolt 1
It is fastened by 3. The internal gear 12 meshes with the gear 7b of the shaft 7 and transmits the rotation of the shaft 7 to the hollow shaft 6. The gear 7 a of the shaft 7 meshes with the gear 3 a of the hollow shaft 3, and transmits the rotation of the shaft 7 to the hollow shaft 3. The gear 7b
The reduction ratios of Nos. 12 and 12 and the reduction ratios of the gears 7a and 3a are set to be equal to each other, and the rotation of the shaft 7 causes the hollow shafts 3 and 6 to rotate at a constant speed and in opposite directions.

Three blades 17a, 17b, and 17c arranged equidistantly around the axis are integrally molded to form a blade body 17, and the blade body 17 is fixed to the lower surface of the hollow shaft 6 by a bolt 19. There is. When the shaft 7 (FIG. 5) rotates, the blade body 17 rotates clockwise in FIG.

Similarly, three blades 18a, 18b and 18c equally arranged around the axis are integrally formed into a blade body 18, and the blade body 18 is fixed to the lower surface of the hollow shaft 3 by a bolt 20. ing. When the shaft 7 (FIG. 5) rotates, the blade body 18 rotates counterclockwise in FIG.

As shown in FIG. 3, the rotation center b of the blade body 17 and the rotation center a of the blade body 18 are opposite to each other at a predetermined distance L from the traverse center O in the traverse direction.
It is eccentrically arranged by 1/2. Here, the length of the blade on the side moving from the end of the traverse to the center direction is more than the length of the blade on the side moving from the center direction to the end of the traverse so that the yarn is reliably delivered at the traverse end. It is configured to be long.

A guide rail 21 is attached to the bearing retainer 15.
(FIGS. 3 and 5) are fixed and the yarn carried by the blades of the blade bodies 17 and 18 is moved along the yarn guide portion 21a of the guide rail 21 to set the traverse speed to a predetermined value.

The above structure constitutes one traverse unit U (traverse mechanism). That is,
The traverse unit U is a unit for winding one package, and the traverse device of the present invention is a device for forming a plurality of packages. Figure 3
In the plan view of FIG.
As shown in Fig. 6, when the yarn is traversed, the units adjacent to each other form a predetermined angle α with respect to the horizontal straight line H when viewed from the direction perpendicular to the surface formed by the yarn. Nonetheless, they are arranged so as to be inclined.

Here, the inclination angle α of one unit is
As shown in FIG. 4, each position where the yarn carried by the blades of the blade bodies 17, 18 is released from the blades at the left and right traverse ends is substantially one horizontal straight line H.
It is set so as to be placed on the top or to be in the vicinity of the horizontal straight line H.

That is, in FIG. 3, the yarn carried by the blade 17a from right to left encounters the blade 18a at the traverse end on the left side, the yarn is released from the blade 17a by the blade 18a, and then left by the blade 18a. To the right, the blades 18a and 17c meet at the right traverse end, the yarn is released from the blade 18a by the blade 17a, and the yarn is similarly conveyed in the opposite direction. Thereafter, the yarns are traversed in the same manner. Therefore, when viewed from one traverse unit, the position released from the yarn blade 17a at the left traverse end and the position released from the yarn blade 18a at the right traverse end are one horizontal straight line. Is it on H?
It is set so that it is located in the very vicinity.

In addition, the blade bodies 17 and 1 of each unit
For each position where the yarn carried by the blade of No. 8 is released from the blade at the traverse ends on the left and right, it is substantially on one horizontal line H described above, or
The inclination angle α and the installation position of each unit are set so as to be located in the very vicinity of the unit.

The inclination angle α according to the present invention may have the above-mentioned configuration. Specifically, the lower critical angle β at which the rotating surfaces of the upper blades of two adjacent traverse units do not overlap each other is set as follows. Within the range of the upper critical angle β ′ or less where the rotation surface of the upper blade of the two adjacent traverse units and the rotation surface of the lower blade of the other traverse unit do not overlap each other, that is, β <α Set ≤β '. Preferably, the inclination angle α of the present invention is set such that the positions of releasing the yarns from the upper and lower blades are substantially the same at the left and right traverse ends in one traverse unit, that is, the centers of the upper and lower blades in the thickness direction. Α is approximately γ so that the angle γ substantially lies on the horizontal line H.

Here, the above β, β ′ and γ are expressed by mathematical expressions, which are values obtained by the following expressions. β = tan ⁻¹ (blade thickness / distance between adjacent traverse units) β ′ = tan ⁻¹ (external dimension of blade / distance between adjacent traverse units) γ = tan ⁻¹ (distance between counter-rotating blades / Traverse stroke) The distance between adjacent traverse units is the distance between corresponding positions of two adjacent traverse units, and the outer dimension of the blade is the thickness of the upper and lower blades and the distance between them. The distance between the blades that rotate in the opposite direction is the distance between the centers of the upper and lower blades (so-called pitch), and the traverse stroke is 1
The traverse length of one traverse unit.

A shaft 24, which is horizontal in the traverse direction, extends above the traverse units. A drive motor (not shown) is connected to one end of the shaft 24 near the outside of the traverse device, and the shaft 24 has screw gears 24 a, 2
4b, 24c, 24d, and 24e are fixed at equal intervals, and the screw gears 24a to 24e are attached to the shaft 7 of the unit U, respectively.
The shaft 7 of each unit U is rotated in the same direction by the engagement with the screw gear 11 on the upper part of the motor. here,
Each of the screw gears 24a to 24e and the screw gear 11 need only be able to transmit the rotation of the shaft 24 to the shaft 7 of each unit U substantially orthogonal thereto, and may be, for example, a combination of a worm and a worm wheel, a combination of bevel gears, or the like. it can.

A contact roller 22 (FIG. 1) is provided below each traverse unit, and the yarn traversed by the traverse unit U is printed on the contact roller 22 and rotated in contact with the contact roller 22. Wind up on a bobbin holder (not shown).

[0027]

According to the present invention, since the position of the yarn released from the blade is at the same distance from the contact roller, the left and right packages have the same end face shape, preventing the twill from coming off, and the commercial value such as the winding shape. Is improved.

[Brief description of drawings]

FIG. 1 is a front view of a contact roller and a traverse device.

FIG. 2 is a view seen from an arrow A in FIG.

FIG. 3 is a view seen from an arrow B in FIG.

FIG. 4 is a detailed view of a C portion in FIG.

FIG. 5 is a sectional view taken along line XX in FIG. 3;

[Explanation of symbols]

 1 Traverse Mechanism Body 1a Shaft Fixing Hole 1b Recess 2 Shaft 3 Hollow Shaft 3a Gear 4a Bearing 4b Bearing 6 Hollow Shaft 7 Shaft 7a Gear 12 Internal Gear 17 Blade Body 18 Blade Body H Horizontal Straight U Traverse Unit

Claims (2)

[Claims] 1. A plurality of parallelly arranged bobbins is provided with two shafts on the upstream side thereof that are substantially orthogonal to the bobbin shaft and rotate in opposite directions to each other. Adjacent pairs of blades to each other are traverse mechanisms configured to fasten blades that traverse yarns and form two rotating surfaces when the blades attached to the two rotating shafts of the pair rotate. In a traverse device for a plurality of yarns arranged adjacent to each other so that the rotation trajectories of the yarns partially intersect each other, when traversing the yarns by the traverse device,
The rotation surface formed by the blades fixed to the respective rotation shafts of the traverse mechanisms adjacent to each other when viewed in a direction perpendicular to the surface formed by the yarns is uniformly inclined in the same direction. A yarn traverse device. 2. A yarn traverse device, wherein at each traverse end of each set, the distance from the respective blades to the position where the yarn is released is equal to the distance to the contact roller.