JP3390576B2 - Yarn traverse device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn traversing device used for winding a yarn around a bobbin, and more particularly to a set for rotating yarns in opposite directions. The present invention relates to a device that traverses a large number of yarns while transferring the yarns between rotating blades. 2. Description of the Related Art Conventionally, as described in Japanese Patent Application Laid-Open No. 5-24740, two rotating shafts having rotating blades for traversing yarns are rotated in opposite directions in pairs. Therefore, the mounting height of each set of rotating blades is adjusted so that one of the adjacent sets of rotating blades all rotates in synchronization with each other in the same plane. [0003] However, in the traverse device described in Japanese Patent Application Laid-Open No. H5-24740, since one blade of an adjacent set is all rotating in the same plane, If the phase of the blade of any of the traverse mechanisms deviates from the normal phase, adjacent blades may interfere with each other and be damaged. Further, Japanese Unexamined Patent Publication No.
In the traverse device described in Japanese Patent No. 24740, since the mounting height of each set of blades is adjusted so that one of the adjacent sets of rotating blades are all located on the same plane, the traverse mechanism is mounted and removed. Was difficult. [0004] It is an object of the present invention to prevent the blades of any of the traverse mechanisms from being out of phase with each other without being damaged by interference between adjacent blades. It is an object of the present invention to provide a yarn traversing device capable of easily attaching and detaching a traverse mechanism. [0005] In the present invention, the above object is solved for a plurality of bobbins arranged in parallel.
On the upstream side, two sets of shafts that are substantially orthogonal to the bobbin shaft and rotate in opposite directions are provided in a set, and blades for traversing the yarns are fixed to the rotary shafts to form the set. A plurality of traverse mechanisms arranged to form two rotation surfaces when the blades attached to the rotating shaft rotate are arranged adjacent to each other so that the rotation trajectories of adjacent sets of blades partially cross each other. In the traversing device of the yarn
When the yarn is traversed by the traverse device, the traverse mechanism of the adjacent traverse mechanism when viewed from a direction perpendicular to the surface formed by the yarn until the rotating surface formed by the pair of blades adjacent to each other does not interfere with each other. The rotating surface formed by the blades fixed to the respective rotating shafts corresponds to a horizontal straight line.
The yarn traverse device is characterized by being uniformly inclined in the same direction at a predetermined angle α satisfying γ ≦ α ≦ β ′ in the same direction. Where β ′ and γ
Is given by the following equation. β '= tan-1 [(outer dimension of blade + 5 mm) / adjacent
Interval of contacting traverse unit] γ = tan-1 [(outer dimension of blade + 0.3 mm) /
In the present invention, when the yarn is traversed by the traverse device, each of the traverse mechanisms adjacent to each other when viewed from a direction perpendicular to the surface formed by the yarn. The surfaces formed by the blades fixed to the rotating shaft are inclined so that the rotating surfaces formed by adjacent blades do not interfere with each other. For this reason, even if the phase of the blade of any of the traverse mechanisms deviates from the normal phase, adjacent blades do not interfere with each other and are not damaged,
Also, the work of attaching and detaching the traverse mechanism can be easily performed. The present invention will be described in detail below with reference to the illustrated embodiments of the present invention. FIG. 1 is a front view of the contact roller and the traverse device, FIG. 2 is a view from arrow A in FIG. 1, FIG. 3 is a view from arrow B in FIG. 1, FIG. FIG. 5 is 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 inserted into a shaft fixing hole 1a formed in an upper portion of the main body 1.
Are fixedly attached to the main body 1. The hollow shaft 3 has a cylindrical shape and is rotatably supported by bearings 4a and 4b fitted to a lower portion of the shaft 2. An external gear 3a is integrally formed on the upper outer periphery of the hollow shaft 3. The distance piece 31 is mounted between the bearings 4a and 4b, and the retaining ring 5 stops the hollow shaft 3 and the bearings 4a and 4b on the shaft 2. The hollow shaft 6 has a cylindrical shape and is large enough to accommodate the above-described hollow shaft 3 in the hollow portion thereof, and the main body 1 is provided via bearings 14a and 14b attached to the outer periphery of the hollow shaft 6. Is rotatably supported in the lower concave portion 1b. Reference numeral 15 denotes a bearing retainer, which 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 parallel to the shaft fixing hole 1a. Bearings 8a, 8 mounted in opening 1c
The shaft 7 is rotatably supported on the main body 1 by b. The retaining ring 9 has a bearing 8a fixed to the main body 1, and the distance piece 10 has bearings 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 7 a and 7 b are provided below the shaft 7.
Are formed integrally with the shaft 7 vertically or separately, and are integrally attached. On the upper part of the hollow shaft 6, the internal gear 12 has a bolt 1
3 fastened. The internal gear 12 meshes with the gear 7 b of the shaft 7 to transmit the rotation of the shaft 7 to the hollow shaft 6. The gear 7a of the shaft 7 meshes with the gear 3a of the hollow shaft 3, and transmits the rotation of the shaft 7 to the hollow shaft 3. The gear 7b
And the reduction ratio of the gears 7a and 3a are set to be equal, and the rotation of the shaft 7 causes the hollow shafts 3 and 6 to rotate at a constant speed and in opposite directions. The three blades 17a, 17b, 17c equally arranged around the axis are integrally formed into a blade body 17, and the blade body 17 is fastened to the lower surface of the hollow shaft 6 by bolts 19. I have. 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 bolts 20. ing. When the shaft 7 (FIG. 5) rotates, the blade body 18 rotates counterclockwise in FIG. As shown in FIG. 3, the center of rotation b of the blade body 17 and the center of rotation a of the blade body 18 are separated from the traverse center O in the traverse direction by predetermined distances L in opposite directions.
/ 2 eccentrically arranged. Here, in order to ensure that the yarn is transferred at the traverse end, the length of the blade moving toward the center from the end of the traverse is longer than the length of the blade moving toward the end from the center of the traverse. It is configured to be long. The 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. Thus, in FIG.
The yarn carried from right to left by 7a encounters the blade 18a at the left traverse end, and the blade 1
8a releases the thread from the blade 17a, and is then carried from left to right by the blade 18a, and at the right traverse end, the blade 18a and the blade 17a.
c meets and the yarn is braided by the blade 17a.
8a, and thereafter, the yarn is carried in the opposite direction in the same manner. The above configuration 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. FIG.
2 partially intersect with each other in the plan view of FIG.
As shown in (1), each unit U is disposed around one horizontal straight line H and inclined at a predetermined angle α with respect to the horizontal straight line H. The inclination angle α is set to a sufficiently large inclination angle as shown in FIG. 4, and if one of the blades 17 and 18 of the adjacent traverse unit U is viewed, Even if the phase of the blade of the unit is shifted, it does not interfere with the blade of the other traverse unit. Specifically, the lower critical angle β at which 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
In one traverse unit, the difference between the positions at which the yarns are released from the upper and lower blades at the left and right traverse ends is within a range of β 'or less, which is an allowable degree from the winding shape of the wound package, That is, β <α ≦
Set to β '. Preferably, the inclination angle α of the present invention,
Of the two adjacent traverse units, the rotation surface of the upper blade and the rotation surface of the lower blade of the other traverse unit do not interfere with each other and the gap between them is 0.
Α ≧ γ so that the angle γ becomes 3 mm or more. As an example, the above β, β ′ and γ are values obtained by the following equations. β = tan ⁻¹ (outside dimension of blade / interval between adjacent traverse units) β ′ = tan ⁻¹ [(outside dimension of blade + 5 mm) / interval between adjacent traverse units] γ = tan ⁻¹ [(outside of blade (Dimension + 0.3mm) /
The distance between the adjacent traverse units] is the distance between the corresponding positions of the two traverse units arranged adjacent to each other, and the outer dimension of the blade is the distance between the upper and lower blades. This is the value obtained by adding the thickness and the gap between them. A shaft 24 extending in the traverse direction extends above each traverse unit. A drive motor (not shown) is connected to one end of the shaft 24 near the outside of the traverse device.
4b, 24c, 24d and 24e are fixed at equal intervals, and each of the screw gears 24a to 24e is connected to the shaft 7 of each unit U.
The shafts 7 of the respective units U are rotated in the same direction by the motors engaged with the screw gears 11 on the upper side of the unit. Here, each of the screw gears 24a to 24e and the screw gear 11 only need to be able to transmit the rotation of the shaft 24 to the shaft 7 of each unit U which is substantially orthogonal thereto. be able to. A contact roller 22 (FIG. 1) is provided below each traverse unit U, and the yarn traversed by the traverse unit U is printed on the contact roller 22, and the bobbin holder rotates in contact with the contact roller 22. (Not shown). According to the present invention, the traverse device is inclined at a predetermined sufficiently large angle so that adjacent blades are not interfered with each other, so that the traverse device can be easily attached and detached. As a result, the shape of the end face becomes the same, the twill is prevented from coming off, and the commercial value of the roll shape and the like is improved. According to the present invention, there is no interference between the blades of the adjacent traverse devices, and the difference in the position (distance from the contact roller to the release position) where each blade releases the yarn at the end of the traverse is minimized. As a result, it is possible to prevent the twill from coming off and to improve the winding shape.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a contact roller and a traverse device. FIG. 2 is a diagram viewed from an arrow A in FIG. FIG. 3 is a view as viewed from an arrow B in FIG. 1; FIG. 4 is a detailed view of a portion C in FIG. 2; FIG. 5 is a sectional view taken along line XX in FIG. 3; DESCRIPTION OF SYMBOLS 1 Body of traverse mechanism 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 α Inclination angle H Horizontal Straight U traverse unit

Claims (1)

(57) [Claim 1] For each of a plurality of bobbins arranged in parallel, two shafts which are substantially orthogonal to the bobbin axis and rotate in opposite directions to each other are provided upstream of the bobbins. The rotating shafts are provided with blades for traversing the yarns, respectively, and two rotating surfaces are formed when the blades attached to the two rotating shafts in the set rotate. In a yarn traverse device in which a plurality of traverse mechanisms are arranged adjacently so that the rotation trajectories of adjacent sets of blades partially cross each other, when traversing the yarn by the traverse device,
Until a rotating surface formed by a pair of blades adjacent to each other does not interfere with each other, blades fixed to respective rotating shafts of the adjacent traverse mechanism when viewed from a direction perpendicular to a surface formed by the yarn form. The rotation plane is a horizontal straight line
Angle α satisfying γ ≦ α ≦ β ′ in the same direction with respect to
In yarn traverse device, characterized in that it is uniformly inclined. Where β ′ and γ are given by
You. β '= tan-1 [(outer dimension of blade + 5 mm) / adjacent
Interval of contacting traverse unit] γ = tan-1 [(outer dimension of blade + 0.3 mm) /
(Interval between adjacent traverse units)