JPH0613271Y2 - Traveler for spinning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of a traveler for a spinning machine used for spinning and twisting of spinning.

[Prior Art] Conventionally, in a traveler for a spinning machine, particularly in a horizontal traveler, in order to stabilize the sliding posture of the traveler during spinning, the cross-sectional shape is formed by a flat line (9) as shown in Fig. 3 (a). Many travelers were used. Further, in order to reduce yarn fluff and yarn breakage, as shown in FIG. 3 (b), the cross-sectional shape in which straight lines (10) parallel to each other are connected by an arc (11) so that there is no inflection point at the connecting portion is used. A traveler formed by a track line (12) having a track shape has been devised.

[Problems to be solved by the invention] However, in the traveler using the flat wire (9), the flat wire (9) is obtained by rolling a wire rod having a round cross section with a flat roll, so that the arcs on both sides are There is a problem that a refraction point is generated at the connecting portion with the straight line on the upper and lower surfaces, and the yarn is squeezed at the refraction point during spinning to generate a yarn fluff or a molten yarn.

Further, in the traveler using the track line (12), since the arcs on both side surfaces are formed with a radius of 1/2 of the thickness,
When the yarn passed through the spinning, the contact pressure with the yarn became strong, which caused the generation of yarn fluff.

Moreover, in the traveler using the flat wire (9) or the track wire (12), since the lengths of the straight line portions forming the upper and lower surfaces of the flat wire and the track wire are the same in the upper and lower sides,
When the traveler slides on the ring with forward tilt and twist during spinning, the corners of the straight part hit the ring strongly, the frictional resistance increases, and the traveler wears significantly,
There was a problem that the life was short.

[Means for Solving the Problems] The present invention has been made to eliminate the above-mentioned problems, and in a traveler having a required circle shape, the width A of the traveler is 1.5 mm to 3.5 mm. The cross-sectional shape is such that the inner surface is formed by a single curve having a radius R of 1.3 A to 2.0 A, the outer surface is formed by a straight line, and both ends of the curved portion forming the inner surface and the outer surface are formed. Is connected to both ends of the straight line portion with an arc having a radius r smaller than the radius R of the arc surface forming the inner surface, and the width A and the thickness T of the traveler are connected.
The present invention provides a traveler for a spinning machine, which is excellent in initial familiarity and has a long life by being configured to have a substantially flat shape with a ratio of A / T = 6 to 8.

An embodiment of the present invention will be described below with reference to the drawings.

[Example] The circle shape of the traveler (1) is such that the traveler's head (2) is formed in a curved shape as shown in FIG. 1 (a), and both sides (3) are from the head (2) to the legs. Is it configured so as to widen toward (4) and to have a straight portion (5) in the substantially central portion,
Alternatively, as shown in (b) and (c) of the figure, the head portion (2) is formed by a straight line, and both side portions (3) are formed by a single arc.

The cross-sectional shape of the traveler (1) has a width A of the traveler (1) of about 2.55 mm and the inner surface (6) as shown in FIG.
With a radius R of 1.3 A, that is, an arc surface of about 3.3 mm, and the outer surface (7) is formed with a straight line, and both ends of the inner surface (6) and the outer surface (7) are An arc surface (8) having a radius r smaller than the radius R of the inner surface (6)
It is configured to have a substantially flat shape connected by.

The center of the arc forming the inner surface (6) is preferably located on a vertical line passing through the center of the width A of the traveler.

Also, the inner length D of the traveler (1) at this time is 4.6.
mm, the inner height H is 3.05 mm, and the traveler weight is about 0.095 g.

Further, in the above structure, the ratio of the width A and the thickness T of the traveler is formed so that A / T = 6.

The width A of the traveler in the above embodiment is 2.55 mm.
However, the range of 1.5 to 3.5 mm is preferable, and
If it is less than 3.5 mm, the contact surface with the ring becomes small, and the sliding posture of the traveler becomes unstable. If it is more than 3.5 mm, stability is improved, but the flexibility of the traveler deteriorates.

The radius R of the arc surface forming the inner surface of the traveler is set to 1.3A, but the range of R = 1.3A to 2.0A is preferable,
If it is smaller than 1.3 A, the radius r of the arc connecting to the straight line on the outer surface becomes small, and the action of squeezing the yarn occurs, which causes the generation of yarn fluff and molten yarn. It becomes straight and the contact pressure between the traveler and the ring becomes strong, causing wear.

The weight of the traveler was set to about 0.095 g, but
Those in the range of 016 g to 0.18 g are preferable, and 0.0
A traveler lighter than 16 g and a heavier than 0.18 g cannot fully exhibit its function.

Further, the ratio of the width A of the traveler to the thickness T is set to A / T = 6, but it is preferable that A / T = 6 to 8, and if it is smaller than 6, the radius r of the arcs forming both sides of the traveler is r. Becomes larger and the thickness of the traveler becomes thicker, and the contact surface between the traveler and the yarn becomes larger, causing the generation of molten yarn,
When it is larger than 8, the radius r of the circular arc becomes small, and an action of squeezing the yarn occurs, which causes generation of yarn fluff and molten yarn.

[Effects of the Invention] Since the traveler for a spinning machine of the present invention has the above-described configuration, the traveling posture of the traveler is stable, the contact pressure between the traveler and the ring is reduced, and the heat dissipation is good, and the hardness near the wear part is small. Since the decrease is reduced, the initial wear in the initial stage of spinning is reduced, and stable spinning performance is obtained for a long time.
Good quality yarn with less generation of fluff and melted yarn can be spun.

Moreover, it has an excellent practical effect that the life of the traveler is greatly extended.

[Brief description of drawings]

1 (a), (b), and (c) are front views showing different embodiments of the present invention, FIG. 1 (d) is a side view of (a), and FIG. 2 is FIG. 1 (a). ) Is an enlarged end view taken along line XX in FIG. 3B, and FIGS. 3A and 3B are cut end views of a conventional traveler. (1) …… Traveler, (2) …… Head (3) …… Side, (4) …… Leg (5) (10) …… Straight section, (6) …… Inner surface (7)… Outer surface, (8) (11) ... Arc surface (9) ... Flat line, (12) ... Track line

Claims (1)

[Scope of utility model registration request] 1. A traveler having a required circle shape, wherein the traveler has a width A of 1.5 to 3.5 mm and a cross sectional shape whose inner surface has a radius R of 1.3 A to 2.0.
A with a single curve with A, the outer surface with a straight line,
Both ends of the curved portion forming the inner surface and both ends of the straight portion forming the outer surface are connected by an arc having a radius r smaller than the radius R of the arc surface forming the inner surface, and the width A and the thickness T of the traveler are connected. A spinner traveler having a substantially flat shape with a ratio of A / T = 6 to 8.