JPS5876529A - Spinning rotor in open end spinning frame - Google Patents

Abstract

PURPOSE:To reduce the flying in fibers and bridging fibers and occurrence of yarn breakage, by providing an auxiliary vent hole at a specific position of a sliding surface of a spinning rotor, and specifying the tilting angle of the sliding surface. CONSTITUTION:The tilting angle (alpha) of a sliding surface of a spinning rotor 2 to the center line of the spinning rotor shaft is 45 deg. or less, and one-plural auxiliary vent holes 11 are provided on the sliding surface 3. The sliding surface 3 is provided at a position in a distance of (l/3)-(2l/3) from the inlet 8 of the sliding surface 3 when the distance from the top end surface 9 of the spinning rotor 2 to the top surface 10 of a bearing shaft is assumed as (l). Thus, the air current is directed from the central part to the outside, i.e. the sliding surface 3 in the interior of the spinning rotor 2. Fibers fed from a channel 1 are led to the sliding surface 3 with certainty and spun.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the configuration of a spinning machine of an air spinning machine, and more specifically, the fibers opened and transferred by the opening machine pass through a channel and are subjected to negative pressure spinning by a separator. In air spinning systems that have a mechanism that reaches the sliding surface of the rotor, by directing the air flow in the negative pressure spinning rotor from the center of the negative pressure spinning U-rotor toward the sliding surface, The object of this invention is to configure a KO-type so that the fibers sent out from the channel are reliably directed toward the sliding surface of the negative-pressure spinning layer.

Conventionally, the spinning rotor for air spinning machines was as shown in Figure 1.
The sliding surface 1 of the spinning rotor (7) through the channel (1)
3) Due to the airflow flowing from the sliding surface +i in the spinning rotor to the exhaust port ill, the fibers trying to go to Jli 141 Fi are not directed toward the sliding surface but are guided to 61 at the yarn pull-out part and become the spun yarn. This causes the generation of cross-linked fibers that become entangled, and also causes thread breakage and causes stones. For this reason, separator plates) are provided, but at present they are not effective enough to offset the influence of airflow on +f+.

The present invention eliminates the above-mentioned drawbacks, and includes providing a plurality of auxiliary exhaust holes t-1 on the circumference of the sliding surface at a predetermined distance along the sliding surface WK from the sliding surface entrance of the spinning rotor, and The present invention provides a spinning rotor for an air spinning machine that solves the above-mentioned problems by configuring the sliding movement Wi to form an angle of α≦45 with respect to the center line of the spinning axis.

An embodiment of the present invention will be described below with reference to the drawings. Third
As shown in the figure, the sliding of the spinning rotor l [river and separator (7)
) on the sliding surface within the space formed by the back surface of the

That is, normally from the sliding surface entrance (8) of the spinning machine to the sliding surface 1
11 An auxiliary exhaust hole is installed on the cylinder on the sliding surface il+ at a distance where the length l along K is one henia t of the length t from the upper end surface of the spinning rotor (9) to the bearing shaft head surface (K1). (Provide one or more rivers.By providing the auxiliary exhaust hole (lI) in this way, when the spinning rotor rotates, the air inside the a-tube chamber is exhausted by centrifugal force from the auxiliary exhaust hole (1K), and the channel Fiber (4) transferred from (1) 1 As shown in Fig. 3, the sliding surface of the four spinning rotors is located at Ill K@.The fiber (4) that has reached the sliding surface slides on the sliding surface. , focusing surface
It is focused in the field.

In addition, among the forces that act on aIK, if we do not take into account gravity and air resistance, the difference between the component force in the sliding slope direction of the centrifugal force r of the fiber (4) acting on the sliding surface 13) and the normal direction of the sliding slope. For component force %y, if h≦J, then 114) is the auxiliary exhaust hole fi.
The spinning rotor (1) is discharged from the spinning rotor (1) and becomes heavy. Therefore, the angle variation of the sliding surface of the spinning rotor circle is α butterfly, α
<, 45.

Figures 4, S, and 6 show examples of auxiliary exhaust holes (11) provided on the sliding surface of the spinning rotor, respectively. Fig. K8 shows the long grooves provided in the circumferential direction of the sliding surface, and Fig. 6 shows the long grooves provided in the circumferential direction of the sliding surface. ,
The spinning rotor is made up of a mesh made of resin or the like.

Since the present invention is configured as described above, the airflow inside the spinning rotor is directed from the center toward the outside, that is, the sliding surface, and the fibers transferred through the channels are reliably guided to the sliding surface and spun. This, together with the reduction in jump fibers and crosslinked fibers, reduces yarn breakage.

In a spinning rotor that does not use an exhaust port due to the speed increase of the spinning rotor, the boundary layer on the sliding surface is absorbed,
This invention has excellent effects such as rectifying air currents and achieving the effect of sharpening fibers.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a spinning rotor showing a conventional example, FIG. 8 is a sectional view of a spinning rotor showing an embodiment of the present invention, and FIG. Mechanical model diagram of centrifugal force, Figure 6. FIGS. 5 and 6 are cross-sectional views showing examples of auxiliary exhaust holes provided in the spinning rotor of the present invention. (1)...Channel, (1)...Spinning rotor, 1
(41)...Sliding surface, (41...Fiber, : Set...Exhaust port, (6)...Thread pull-out part, ())...Separator, (1)...Sliding Surface inlet, (1)...Top end surface of spinning rotor, -...Bearing shaft l! [Surface, (11... Auxiliary exhaust hole, H... Rotor chamber, ■... Focusing surface, 6
4...Circular hole, II...Longitudinal groove, 6 o'clock...Mesh No. 1
Figure 3 Figure 5 Figure 84 Figure 6

Claims (1)

[Claims] One auxiliary is placed on the circumference of the sliding surface at a distance such that the length 7 along the sliding surface from the sliding surface entrance is 18=72-to, which is the length t from the upper end surface of the spinning tube to the bearing shaft head surface. Spinning of an air spinning machine with a plurality of exhaust holes TL and a sliding surface formed at an angle of 24 degrees with respect to the center line of the spinning rotor axis.