JPS594053Y2 - Air fluff retention prevention device in open-end spinning machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for preventing boiling off fluff in an open-end spinning machine, and in particular, the flying fluff from the opening roller serving as a fiber opening mechanism is removed from the upper and lower surfaces of the roller and the fiber supply mechanism. The purpose of this is to prevent stagnation from accumulating near the upper and lower surfaces of.

Conventionally, in order to prevent the accumulation of fluff in the vicinity of the fiber supply and opening parts of an open-end spinning machine, as shown in FIGS. Outside air inflow holes 13 and 14 are bored in the upper and lower side walls 15 of the casing corresponding to the side surfaces, and the negative pressure action of the rotor 5 as a heating mechanism allows air to flow in through the collector 1, the dust flow path 7, and the transport channel 12. Along with C, D, and E, outside air A and B are also allowed to flow in from the inlet holes 13 and 14, and these air flows A and B carry the fluff that tends to stagnate around the supply roller 2 and opening roller 4. .

That is, in the case of this type, the opening roller 4 rotates at a high speed of several thousand times per minute, and the wound metallic wire 6 performs a combing action on the supplied fibers, so that fine fibers, dust, etc. mixed in the fiber group are removed. Contaminants (hereinafter referred to as fluff) tend to scatter.

Then, this fluff is discharged into the dust removal device 16 against the outside air, or is blown to the inside of the rotor 5 along with the fibers by the air current E, and is further distributed to both upper and lower sides of the fiber supply roller 2 and fiber opening roller 4, and Corresponding upper and lower side walls 15 of the casing
Most of the fibers pass around the opening roller 4, especially through the narrow return passage 8, and near the joint between the opening roller 4 and the supply roller 2, where there is a relatively wide space. It is released by centrifugal action and remains there.

This retained air fluff flows from the outside air inflow holes 13 and 14 into airflows A and B.
will be carried away by.

By the way, the suction action by the rotor 5 is caused by the transport channel 12.
to the peripheral surfaces of the opening roller 4 and the supply roller 2 via the
Since the main stream F is formed there, the outside air inflow hole 13.1
It is desirable that the inflow airflows A and B from 4 are also merged into the main flow F.

However, airflows A and B that have entered the space between the side surfaces of the supply roller 2 and the opening roller 4 and the corresponding side walls 15 of the casing are caused by the flanges 4a formed at both upper and lower ends of the opening roller 4. In reality, it is difficult to flow into the center of the circumferential surface of the roller 4.

This is because the distance between the passages 8, 9, 10 around the opening roller 4 and the flange 4a is designed to be quite small to prevent the fibers from flying out, so the fibers flow over the flange 4a and into the center of the roller 4 circumferential surface. This is because it is difficult to do.

This also applies to the supply roller 2 that joins the opening roller 4, and the air flows A and H flow into the joint part through the flange 4.
The flying of the fluff is not very effective because it is inhibited by a.

For this reason, the inflow airflow into the rotor 5 includes an inflow airflow C from the concentrator 1, an inflow airflow D from the dust flying path 7, an inflow airflow E from the transport channel 12, and an inflow from the peripheral surface of the supply roller 2 and the opening roller. Only the main air flow F flows into the rotor 5 through the circumferential surface of the casing 4 through the opening path 9 and the transfer path 10, and through the space between the casing side wall 15 and the upper and lower side surfaces of the supply roller 2 and the opening roller 4. Air flow A flowing into the rotor 5
, B almost never occur, and because of the gradual air inflow in the outside air inflow holes 13 and 14, clogging of air fluff occurs instead, and this becomes a cause of air fluff accumulation near the fiber supply mechanism section and the fiber opening mechanism section. Ta.

If fluff accumulates near the fiber supply mechanism or opening mechanism,
The rotation of the supply roller 2 and the opening roller 4 is obstructed, and the operation of the regulating member 3 becomes defective, and the action of the opening roller 4 or the inflow main air flow F is prevented after the fluff has grown to a certain extent or solidified. When the yarn is conveyed again and fed into the rotor 5, the yarn may break or the quality of the yarn may be impaired.

In order to eliminate the above-mentioned drawbacks, the present invention promotes the inflow of air from the outside air inflow holes 13 and 14, and also guides this inflow air flow to the center of the circumferential surface of the supply roller 2 and the opening roller 4. From the viewpoint of effective prevention of fluff retention, in relation to the spiral winding direction of the metallic wire 6 as a fiber spreading member wound around the fiber spreading roller 4,
A flange 4a is formed only on one side, and the opening roller 4
A gap is formed at the end of the other side of the rollers to promote air flow to the center of the circumferential surface of the rollers 2 and 4, and to prevent fluff from accumulating near the fiber supply mechanism and the opening mechanism. This is what I did.

In the case of the embodiment shown in FIG. 4, when the metallic wire 6 wound around the opening roller 4 is spirally wound upward to the right in the rotating direction, a flange 4a is formed only at the lower end of the opening roller 4. The gap between the supply roller 2 and the regulating piece 11 of the regulating member 3 is widened at the upper end of the roller 4.

In this case, the sliver introduced by the supply roller 2 and regulated by the regulating piece 11 formed at the tip of the regulating member 3 is spread by the right-handed spiral winding of the metallic wire 6, and the opened fiber group is pushed downward by the component force f1. Becomes pushed down.

Therefore, it is necessary to form a flange 4a at the lower end of the opening roller 4 in order to prevent the fiber group from separating from the lower end.

However, since the opening and transporting action of the fibers is insufficient at the upper end of the opening roller 4, the existence value of the flange 4a is small.

By forming the flange 4a only at the lower end of the opening roller 4 in this way, the gap between the upper end of the opening roller 4 and the regulating piece 11 of the supply roller 2 and the regulating plate 3 becomes wider than before, so that the opening state is maintained. becomes.

With this configuration, the flange 4a and each passage 8
. Therefore, the outside air A from the outside air inlets 13 and 14,
The inflow of air H is promoted, and it passes over the upper ends of the opening roller 4 and the supply roller 2, flows into the center of the peripheral surfaces of the rollers 2 and 4, and joins the main air flow F, and the outside air inflow holes 13 and 14 The airflows A and B improve air circulation around the fiber supply mechanism and the opening mechanism, so that flying fluff does not accumulate in the opening path 9. By transporting the fluff to the dust removal device 16 and letting it flow into the rotor 5 through the transfer path 10, the accumulation of fluff can be greatly reduced.

In the embodiment shown in FIG. 5, contrary to the above embodiment, when the metallic wire 6 is spirally wound to the left, the fiber group is shifted upward,
In order to control this, a flange 4a is formed at the upper end of the opening roller 4, and a wide gap is formed at the lower end, and as in the case of FIG. This promotes the inflow of outside air and prevents the accumulation of fluff near the fiber supply mechanism and opening mechanism.

In addition, in the embodiment of the present invention, the outside air inflow hole 13.1
Although the holes No. 4 are made in the side wall of the casing on which the flange 4a is not formed, it would be more effective if they were provided in both side walls.

Further, the regulating pieces 11 are provided on both the upper and lower sides of the tip of the regulating member 3, but the regulating pieces 11 are formed only on the same side as the flange 4a formed on the fiber opening roller 4 to reduce the gap with the fiber opening roller 4. It is desirable to expand further and increase air flow.

Further, although the metallic wire 6 has been described as the opening member, a member in which pins are arranged spirally can also have the same effect.

In addition, the outside air inlet hole 13 is provided in the side wall 15 of the casing.
14, this inflow hole 13.
14 is not provided, outside air flows in around the concentrator 1 and other parts, and the air flows into the side wall 1 of the casing.
5, the fiber supply mechanism, and the fiber opening mechanism, the air flows C, D, and E flowing from the concentrator 1, the dust flight path 7, and the transport channel 12 become the main air flow F, and this main air flow F Since an airflow is generated toward the center of the peripheral surfaces of the supply roller 2 and the fiber opening roller 4 due to the suction action of the inflow hole 13.1.
The same effect as in the case of drilling 4 is obtained.

In this way, the device of the present invention forms the flange 4a only on one side of the opening roller 4 as a opening mechanism according to the spiral winding direction of the opening member 6, and the flange 4a is formed on the other side of the opening roller 4. Although it has a simple structure in which a gap is wider than one side on the other side, it can effectively prevent fly fluff from accumulating near the fiber supply mechanism and the fiber opening mechanism, thereby preventing malfunction of the regulating member 3 and supply roller 2, This has the effect that rotation failure of the opening roller 4 is less likely to occur, and yarn breakage and yarn quality deterioration due to solid fluff flowing into the rotor 5 are also less likely to occur.

[Brief explanation of the drawing]

Fig. 1 is a plan sectional view showing one type of open-end spinning machine, Fig. 2 is a perspective view, Fig. 3 is a side sectional view, and Figs. 4 and 5 show two embodiments of the device of the present invention. FIG. 2...Fiber supply roller (fiber supply mechanism), 3.
... Regulation member, 4 ... Spreading roller (spreading mechanism), 5 ... Rotor (heating mechanism), 4a ...
...Flange, 6...Metallic wire (
opening member), 9... opening path, 13.14...
...Outside air inflow hole.

Claims (1)

[Scope of utility model registration request] The fibers sent out from a fiber supply mechanism consisting of a supply roller 2 and a regulating member 3 that presses against the supply roller 2 are opened and transferred by a fiber opening roller 4 equipped with a spiral opening member, and then sent to a heating mechanism. In an end spinning machine, when the spreading member of the spreading roller 4 is installed in an upward spiral winding direction to the right in the rotation direction, the flange 4a is formed only at the lower end of the spreading roller 4. A gap is formed at the upper end part wider than at the lower end part, and when the device is spirally wound upward to the left, a flange 4a is formed only at the upper end of the opening roller 4, and an upper end is formed at the lower end part of the opening roller 4. A device for preventing the accumulation of fluff in an open-end spinning machine, characterized by having a gap wider than the center of the spinning machine.