KR820002250B1 - Open-end rotor for a spinning machine - Google Patents

Abstract

The open-end spinning rotor has an annular wall from the open end extending radially outwardly, and a second wall extending from the first radially inwardly to the closed end. The first wall has an inner part onto which fibers are supplied through the open end and is at 55-75≰ with a plane perpendicular to the rotational axis. An outer part receiving fibers from the inner part forming an angle of 10-35≰ with a straight line from the inner part. Theo second wall has an outer part forming an angle of 20-50≰ with a straight line from the inner part. The outerparts of the two walls from the fiber collecting space.

Description

Rotating spinning room in open end spinning machine

1 is a cross-sectional view showing the shape of the main portion of the rotary spinning chamber according to the present invention.

)에 있는 섬유속 연입(撚入) 영역의 분포상태를 도시한 사시도.2 is

The perspective view which shows the distribution state of the fiber bundle engagement area | region in ().

3 and 4 are explanatory diagrams showing a state in which the size of the joining region is changed in accordance with the change in the angle corresponding to the horizontal plane of the sliding surface.

5 is a diagram showing a change in the amount of impurities accumulated by changing the angle A. FIG.

6 is a diagram showing the change in the cumulative amount of impurities by changing the angle D. FIG.

FIG. 7 is a plot comparing the cumulative amount of impurities between when having an angle A and in addition to having an angle D. FIG.

FIG. 8 is a chart comparing li power in FIG.

9 is a sectional view of the main portion of a rotating spinning chamber having a self-cleaning ability, which has been conventionally considered.

* Explanation of symbols for main parts of the drawings

2: fiber collecting part 3: sliding surface

4: first smooth surface 5: second smooth surface

6: first slope guide surface 7: the second guide surface

F: fiber bundle d: impurity

The present invention relates to an improvement of the rotary spinning chamber in an open end spinning machine, and in more detail, it is possible to prevent impurities from accumulating in the spinning spinning chamber, thereby enabling long-term operation without damaging the quality of the yarn. It is intended to be.

)로 완성시킴으로서 생산성의 재고를 최대의 이점으로 하여 등장되고, 방적공장의 합리화에 지대한 기여를 하고 있으나, 근년에 와서는 또다시 생산성을 향상시키기 위하여, 고속방출 상태를 장기간 유지하는 일이 불가결한 일로 대두되었다.As an open-end spinning machine, thick fiber bundles are used in one step.

In the recent years, it has made a great contribution to the rationalization of spinning mills, but in recent years it is indispensable to maintain high-speed emission for a long time to improve productivity. It came to work.

)로 형성코저 하는 가연사(加撚

)와의 사이에 게재하여 양자를 분단(즉 사를 절단하는 일)하게 하는 커다란 불순물은, 앞서의 공정에서 제거하여 왔기 때문에, 고속 방출에 장해가 될수 있는 요소는 없다.Although the fibers supplied to the rotating spinning chamber of the open-end spinning machine are almost completely free of impurities such as fruit residues and leaf residues in the process of this advantage, it is currently impossible to eliminate them. However, the group of rebound fibers in the spinning room and the wound

False-twist yarn

The large impurities that appear between the and) to divide them (i.e., cut the yarns) have been removed in the previous process, and thus there is no element that can impede the high-speed release.

This is because the impurities entering the rotary spinning chamber are small ones that hardly deteriorate the sand even when mixed in the yarns. The problem is that the rotating radiation chamber itself has an element that cannot sustain high-speed emissions for a long time.

)로서 정열섬유를 감아드릴 경우에도 불순물은 입방체(立方體)에 흡사하면 할수록, 섬유와 같이 감겨 들어갈 가능성은 적어지는 것이다. 이와 같이 하여, 섬유수집부에 남겨진 불순물은 원심력에 의한 강한 압축력을 받아, 장기간 운전중에 서서히 퇴적층을 두껍게하여, 섬유 집속부의 곡율반경(曲率半徑)을 초기의 최고량의 상태보다도 크게 한다. 이것이 방가출연사에 대하여 미묘한 영향을 부여하게 되는 것이다.In the open-end spinning machine, when the fibers are introduced into the rotating spinning chamber, the fibers are guided to each other in an open state, i.e., in a distorted state, so that mixed impurities are also released from the restraint between the fibers. ) Thus, even if the fibers are refocused in an orderly state in the fiber collection section of the spinning yarn, the impurities may be very difficult to intervene again between the fibers because of the difference in the nature or size of the fibers. . This is because the impurities are generally higher in mass than the fibers, and therefore, they move to the fiber collecting section by a large centrifugal force and proceed to enter the narrow portion of the collecting section, and to the inner side (the center of the rotating spinning chamber). Because the fibers are aligned, false twisted yarn

In the case of winding the fibrous fibers as), the more the impurities resemble a cube, the less likely that the fibers are wound like fibers. In this way, the impurities remaining in the fiber collecting portion receive a strong compressive force by centrifugal force, gradually thicken the deposited layer during long-term operation, and make the radius of curvature of the fiber focusing portion larger than the state of the initial maximum amount. This has a subtle effect on the guest speaker.

斑), 꼬임의 감소로 인한 사의 강력의 저하라고 말하는 사질의 열화를 초래하고 원래 고속방출에는, 섬유속의 충분한 가연작용이 불가결하기에, 불순물 퇴적에 의한 꼬여걸리는 손실은 고속방출을 불가능하게 한다. 이를테면 옛날부터 일반적으로 사용해 온 회전방사실에서는, 사의 품질을 해치는 일없이 고속방출 상태를 장기간 유지하지는 못했다.The fiber width in the fiber collecting part becomes wider, and the flammability of the fiber is hard to be fully performed, and

Iii), which leads to deterioration of the sand, which is said to be a decrease in the strength of the yarn due to the reduction of the twist, and in the original high speed release, sufficient flammability of the fiber bundle is indispensable. For example, in the rotary spinning room, which has been generally used since ancient times, it has not been possible to maintain a high speed emission state for a long time without compromising the quality of the yarn.

The present invention focuses on the above-mentioned drawbacks and also, even when performing regular cleaning, the impurities are accumulated in the fiber collecting part because they are almost solid and buried, or because it is very difficult to shake them off, the impurities are accumulated. The purpose is to obtain a spinning spinning room that does not have a self-rotating room.

As a spinning spinning chamber having a self-cleaning capability, the present applicant has first applied for the structure shown in Fig. 9 (see Japanese Patent Publication No. 52-12292), but this is a slid surface that the fiber first faces. On (3), the slidable surface 3 which makes the two separate by using the difference of inertia between an impurity d and a fiber is made into two cross-sections 4 and 5, and a fiber Although is led to the collecting section 2, it is desired that the impurities behave into the space near the intersections of the second cross sections (4, 5) and wind around the yarns. Thus, in consideration of the impurity D which has not been wound up, since the collecting part 2 has a width so that it is wound on the fiber bundle again in the fiber collecting part 2, even if it is useful for the removal of the impurity d, Inadequate focus has resulted in an unforeseen event called deterioration of sand quality. In addition, in Fig. 9, the deposition of impurities in the fiber collecting section 2 also appeared after long-term use, and was not perfect.

The present inventors ameliorate the defect called sand deterioration by the wide fiber collecting section 2 while confirming the reduction effect due to the space fluctuations due to the inertia of the impurities in FIG. Based on the perception that the cause was identified and resolved, the improvement was initiated.

First, at the smoothing surface 3 facing the first fiber introduced, a first smoothing surface 4 and a second smoothing surface 5 are formed to separate the fibers and impurities mixed therein, and at any angle. When crossed, it was detected whether it was desirable to remove impurities.

The first smoothing surface 4 is limited to a range of 55 to 75 ° with respect to the horizontal plane in the necessity of maintaining the fiber smoothing speed to the fiber collecting section 2 at a certain level.

If the above angle is exceeded, the arrangement of the fibers in the sand is deteriorated. Therefore, as shown in FIG. 5, by changing the angle A at which the first smooth surface 4 extends from the second smooth surface 5 with respect to the surface 4 at 60 ° with respect to the horizontal plane. , The cumulative amount of impurities was measured. Thus, in order to prevent impurities from accumulating, it was expected that this would be achieved if the angle A was specified. The underlying theory is that, in view of the fact that the first impurity may be attached to the fiber bundle before reaching the fiber collecting part 2, in FIG. 1, the larger the angle A, the more the impurity separates from the fiber by its own great inertia. It is possible that the impurity is in the space, but the impurity is an angle A that can be immobilized to the fiber bundle F inner side b, and secondly, the impurity is embedded in the fiber bundle F outer portion a, that is, the collecting portion 2, even if hard. When the flammability effect to the fiber bundle F is extended in the collecting section 2, the impurities in the outer side of the fiber bundle F are also wound up, and the insertion region X shown in FIG. 2 is as small as possible. The joining area Y is increased as much as possible, and the angle B is made as small as possible within the range in which the fiber bundle F can enter. Therefore, the angle A may be increased. The polymerization angle A of both elements must be found by experiment.

Referring to FIGS. 2 to 4 again, the indentation area applied to the yarn based on a certain discharge condition is automatically determined. In this case, the yarn is brought into contact with the sliding surface 3 and then connected to the fiber collecting portion 2. Is divided into an area X reaching), an area Y connected to the collecting unit 2, and the like. Thus, in the case of the present invention, since the region X is also formed on the second smooth surface 5, by changing the angle B, even if the same centrifugal force S _c becomes different, the width of the region X is different due to the difference in the components S _b . Change. The smaller the angle B of the second smooth surface 5 is, the larger the component force S _b is, which is more likely to move toward the live fiber collecting part 2 (FIG. 4), and the larger the angle B is, the smaller the component component S _b is. It is hard to move to the part 2 side, and the area | region X remains large (FIG. 3).

Therefore, by making the angle B small, the area X can be reduced and the remaining area Y can be made large, so that the winding action of the fiber bundle F by the yarns in the fiber collecting part 2 can be performed extensively. It becomes easy to wind up the impurity d in the fiber bundle outer side a.

Therefore, the result of the said measurement based on such a theoretical basis is as shown in the graph of FIG.

The inner diameter Z = 50 mm and 60,000 rpm of the rotating spinning chamber and the inner diameter Z = 65 mm and 36,000 rpm showed the same tendency (transition lines (I) and (II)). As the fluid amount decreases and the angle A is increased, it becomes clear that the impurity fluid amount decreases again, and a remarkable effect is recognized in comparison with the conventionally used angle A of 0 degrees. The retention amount starts to increase again in the vicinity of the angle A exceeding 35 °, so that impurities slid on the first sliding surface 4 and deviated into the space in the extending direction do not reach the fiber bundle F inner side b. And the radius of curvature of the fiber collecting part 2 becomes too small, and the winding action of the fiber bundle cannot enter the narrow part of the collecting part 2 and cannot impregnate the impurity d. It is considered.

Thus, it turned out that the angle A which the extension line of the 2nd smooth surface 5 with respect to the 1st smooth surface 4 makes exists in the range of 10-35 degrees. When it exceeds 35 °, the impurity deposition amount starts to increase as described above, and even the fibers that slide on the first smooth surface 4 are easily moved to the space, and parallel to the second smooth surface 5 as a sharp angle even if not swollen. This results in unreasonable results in that the arrangement of the fibers is disturbed and worsens the quality of yarn.

According to the above theory and the measurement result supplementing it, the most impurity retention was operated for a long time with respect to the inner diameter Z = 50mm and 60,000rpm and the inner diameter Z = 65mm and 36,000rpm with a slight angle A = 25. The transition (推移) of was measured. As a result, as shown by the transition line (III) (IV) in FIG. 7, the value (値) exceeded 100 mg per weight after 20 hours. This value alone does not affect the quality of the yarn and, as shown in FIG. 8, smoothly attenuates the trend of li-power (V) (VI), while maintaining a high value. The tendency to adversely affect quality is also shown.

In this respect, the present inventors attempted the analysis of the first impurity in order to reduce this impurity retention to the maximum. As a result, it was found that the placenta of the retained impurities based on the transition line (III) (IV) in FIG. 7 were the residues of extremely fine fibers and various fruits and the residues of leaves. In order to search for the cause of the retention of such fine impurities, the fiber introduced into the rotary spinning chamber requires a certain velocity or more, and thus, the impurities are brought into contact with the first smooth surface 4 and thus have a greater mass than the fibers. Although the first sliding surface 4 is brought into contact with the first sliding surface 4, the extremely fine impurities are stalled before reaching the first sliding surface 4 by the extremely small mass, and the floating spinning chamber is suspended and the bottom surface ( It is considered that it hits 1) and slides there as a centrifugal force to reach the fiber collecting part 2. Thus, by increasing the above-mentioned concave region Y, even if the impurity winding-up force is increased in the collecting section 2, it is considered that there is a limit to the impurities introduced thereby. In view of such considerations, it is based on the recognition that even the extremely fine impurities which migrate from the bottom face 1 to the fiber collection part 2 are not wound unless the space is agitated and actively attached to the inner b of the fiber bundle F. And improved again.

An inclined surface is required to move the impurities in the bottom surface 1 to the fiber bundle inner portion b located in the collecting portion 2, and the forming portion 2 is opposed to the second smooth surface 5. In the present invention, the bottom face 1 is connected to the fiber collecting part 2 through the first inclined guide surface 6 and the second guide surface 7. An important configuration here is the angle D which forms the extension surface of the first inclined guide surface 6 with respect to the second guide surface 7.

Since the 2nd guide surface 7 forms the fiber collection part 2 with the 2nd smooth surface 5, there exists a situation which cannot change a large angle. Even if the second smooth surface 5 is selected at an appropriate angle, even if the angle B formed by this and the second guide surface 7 is too small, it is also expected that a large amount of impurities will be entangled in the narrow portion of the collection unit 2. In order to prevent this, even if an angle is provided on the second guide surface 7, the angle E is about 5 to 10 degrees with respect to the horizontal plane. Either way, within a certain range of the angle D, it may be agitated on the first inclined guide surface 6 of impurities from the bottom face 1 to be guided to the fiber bundle inner side b. Thereby, as shown in FIG. 6, the change in the amount of retention when the angle D is changed with respect to the inner diameter Z = 50 mm and 60,000 rpm and the inner diameter Z = 65 mm and 36,000 rpm as the angle A = 25 degrees. It was evident that the impurity retention decreased as the angle D increased, as shown by the transition line. This fact indicates that the closer the angle D is to 0 °, that is, the closer the bottom surface 1 and the second guide surface 7 are to the same plane, the less the impurities on the bottom surface 1 move into space. It slides on the guide surface 7 and reaches the collection part 2, and since it is a fine thing, it is added that it is not encouraged by the winding action in a fiber. Thus, when the angle D becomes large, the impurity d is agitated in the direction of the extension line of the first inclined guide surface 6 to reach the inner side b of the fiber bundle F, and it is added. In particular, when the angle D is in the range of 20 to 50 degrees, the decrease in the amount of impurity retention is remarkable, and this value indicates that the amount of impurity retention is reduced to a fraction of a percentage in comparison with the measurement value of FIG. 5 in which the angle D is not set. It turns out. Furthermore, even if the angle D exceeds 50 °, the amount of retention has not increased much, but once the impurities have stagnated on the first inclined guide surface 6, they grow large and then stray away from them, attach to the fiber bundle and wind up. Since the tendency to become is observed and there is a possibility of damaging sand quality, it can be said that the preferable value of angle D is also in the range of 20-50 degrees.

As described above, the structure of the rotary spinning chamber according to the present invention was specified, but finally, the most preferable value was measured after long-term operation with respect to the impurity retention amount and li strength at angle A = 25 and angle D = 35. Is a graph shown in FIG. 7 and FIG. As apparent from the transition line of FIG. 7, as compared with the transition line (III) (IV) in which the angle D was not provided, the retention amount was also small.

Claims (1)

The fiber carried by the flow of air is connected to the slidable surface 3 of the rotary spinning chamber to the fiber collecting section 2, and has a sinusoidal exit located at the center of the spinning chamber (

Combustible yarn (加 撚) on the collecting part (2) in a coin

In the open end spinning machine which winds up the collecting fiber as the tip of the head) and forms it into yarn so that it can be continuously drawn out, the sliding surface 3 is formed by the first sliding surface 4 and the second sliding surface 5. , The angle A formed by the extension line of the second smooth surface 5 with respect to the first smooth surface 4 is in the range of 10 to 35 °, and the bottom surface 1 is the first inclined guide surface 6 and the second guide surface ( 7) is connected to the fiber collecting part 2 through, and the angle D of the extension line of the first inclined guide surface 6 with respect to the second guide surface 7 is characterized in that it is in the range of 20 to 50 °. Rotating spinning room.

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