JP4051801B2 - Yarn processing method and apparatus therefor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a yarn wrapping device such as an automatic winder, a yarn splicer, a yarn twisting machine, etc., which removes a weak portion of the yarn or suppresses the fluff of the yarn. The present invention relates to a yarn processing method and apparatus for improving quality.
[0002]
[Prior art]
Conventionally, a slab catcher or yarn clearer is used to detect and remove a slab, a defective part of a thread such as a part thinner than a predetermined thickness or a part thicker than a predetermined thickness, or to suppress fluff of a thread. A yarn processing method and apparatus therefor are known.
[0003]
[Problems to be solved by the invention]
The above-described slab catcher and yarn clearer can detect and remove a defective portion of a thread such as a slab, a portion thinner than a predetermined thickness, or a portion thicker than a predetermined thickness. However, although there is no such defect in appearance, there is a problem that it is impossible to detect a portion that is weak in strength due to, for example, sweet yarn twist. If there are yarns that contain weak parts that were not detected by the slab catcher or yarn clearer, the weak parts are cut in the next process, such as the warping process, and the work efficiency of the warping process is reduced. There was a problem to do.
[0004]
Further, a yarn processing method and apparatus for suppressing fluff by passing the yarn through the swirling air flow are known, but at the entrance and exit of the swirling air flow generating member that generates the swirling air flow, Since the yarn cannot be maintained at the center of the entrance / exit, the yarn is not sufficiently ballooned in the swirling airflow generating member, so that there is a problem that desired fluff cannot be suppressed.
[0005]
An object of the present invention is to solve the problems of the conventional yarn processing method and apparatus described above, and to provide a yarn processing method and apparatus capable of simultaneously removing a weak portion of the yarn and suppressing fluff. There is to do.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention is first arranged at the yarn inlet of the swirling air flow generating member that generates the swirling air flow and at the yarn outlet of the swirling air flow generating member, respectively. was, the guide members for maintaining the yarn in a substantially central portion of the longitudinal bore of the swirl air flow generating member, the yarn, while maintaining the substantially central portion of the longitudinal hole of the revolving airflow generating member, the swirl air flow generation The yarn is ballooned by the swirling air flow of the member to suppress the fluff and to cut the weak portion of the yarn. Second, the swirling air flow that generates the swirling air flow and having a generating member, the yarn outlet of the yarn inlet and the swirl air flow generating member of the revolving airflow generating member, respectively, the yarn is maintained at a substantially central portion of the longitudinal hole of the revolving airflow generating member are those of the guide member is disposed, the , The yarn guide member to maintain the substantially central portion of the longitudinal bore of the swirling air flow generating member, the outlet of the yarn inlet and the swirl air flow generating member of the thread of the revolving airflow generating member, respectively distribution A fixed guide member and a movable guide member biased in the direction of the fixed guide member are provided.
[0007]
【Example】
Examples of the present invention will be described below. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.
[0008]
Reference numeral 1 denotes a yarn supply package, and the yarn y rewound from the yarn supply package 1 is taken up by a take-up package (not shown). Reference numerals 2a and 2b are yarn guides having a substantially Y-shaped planar shape disposed above the yarn feeding package 1 at a predetermined interval.
[0009]
Reference numeral 3 denotes a substantially prismatic swirling airflow generating member disposed between the yarn guides 2a and 2b. A vertical hole 3a is formed in the central portion of the swirling air flow generating member 3, and a concave portion 3b having a triangular shape in a planar shape spreading toward the side wall is formed in one side wall. The swirling airflow generating member 3 is formed with a slit 3c through which a thread can be inserted while connecting the triangular recess 3b and the vertical hole 3a. Near the substantially central portion of the vertical hole 3a, an air ejection hole 3d opened in a tangential direction of the inner peripheral surface of the vertical hole 3a is formed. Although FIG. 4 shows an example in which one air ejection hole 3d is formed, a plurality of air ejection holes 3d may be provided in the tangential direction of the inner peripheral surface of the vertical hole 3a. 3e is for supplying compressed air to the air ejection hole 3d via a block 3f having a through hole 3f 'connected to one side of the swirling air flow generating member 3 and communicating with the air ejection hole 3d. It is a pipe. When air is ejected from the air ejection hole 3d in the tangential direction of the inner peripheral surface of the vertical hole 3a via the pipe 3e and the block 3f, a swirling airflow can be generated in the swirling airflow generating member 3. Has been.
[0010]
Reference numeral 4 denotes a fixed guide member attached to one side surface of the swirling air flow generating member 3. The fixed guide member 4 has a vertical portion 4a attached to one side surface of the swirling air flow generating member 3, and horizontal portions 4a and 4b extending in the horizontal direction from the upper and lower ends of the vertical wall 4a. In the horizontal portions 4a and 4b, concave portions 4a ′ and 4b ′ having a triangular planar shape are formed in the same direction as the concave portion 3b of the swirling airflow generating member 3. Then, the fixed guide member 4 is positioned so that the top portions 4 a ″ and 4 b ″ of the triangular recesses 4 a ′ and 4 b ′ of the fixed guide member 4 are located at substantially the center of the vertical hole 3 a of the swirling air flow generating member 3. The swirling airflow generating member 3 is attached.
[0011]
Reference numeral 5 denotes a moving guide member disposed on the outer side of the fixed guide member 4 having a substantially U-shaped front shape, and a horizontal plate 5b attached to the vertical portion 5a of the moving guide member 5 is And a vertical rod 7 rotatably supported by support plates 6a and 6b attached to appropriate frames. Horizontal portions 5c extending in the horizontal direction are formed from the upper and lower ends of the vertical portion 5a.
[0012]
Reference numeral 8 denotes a gate tension member as an example of a tension applying device disposed between the lower yarn guide 2a and the moving guide member 5. The fixing portion 8a of the gate tension member 8 is attached to an appropriate frame 8b. In addition, the movable portion 8c of the gate tension member 8 is attached to the vertical rod 7 described above.
[0013]
9 is a coil spring whose lower end is locked to the lower support plate 6 b and whose upper end is locked to the vertical rod 7, and the horizontal portion of the moving guide member 5 attached to the vertical rod 7. 5c is urged toward the fixed guide member 4, and the movable portion 8c of the gate tension member 8 is urged toward the fixed portion 8a. Reference numeral 10 denotes a yarn trap composed of a suction tube.
[0014]
When the yarn y drawn upward from the yarn supply package 1 is passed through the gate tension member 8 and the swirling air flow generating member 3, first, the movable guide member 5 or the movable portion 8c of the gate tension member 8 is Against the biasing force of the coil spring 9, the movable guide member 5 is turned around the vertical rod 7 in a direction away from the fixed guide member 4 or the fixed portion 8 a of the gate tension member 8 to turn the yarn y. The air flow generating member 3 is retracted so as not to obstruct the introduction into the vertical holes 3a of the air flow generating member 3 and the recessed portions 4a 'and 4b' of the fixed guide member 4, and the yarn y can come into contact with the fixed portion 8a of the gate tension member 8. Then, the movable part 8c is separated from the fixed part 8a.
[0015]
Next, the yarn y drawn upward from the yarn supply package 1 is disposed in the fixing portion 8a of the gate tension member 8, and is disposed in the vertical hole 3a from the slit 3c of the swirling air flow generating member 3. Thereafter, the moving guide member 5 in the retracted state is rotated in the direction of the fixed guide member 4 by the urging force of the coil spring 9, and the yarn y introduced into the recesses 4a ′ and 4b ′ of the fixed guide member 4 is swung. The yarn y is fixed by the fixed guide member 4 and the moving guide member 5 so as to be arranged at the top portions 4a ", 4b" of the concave portions 4a ', 4b' located at the substantially central portion of the vertical hole 3a of the air flow generating member 3. At the same time, the yarn y disposed on the fixed portion 8a of the gate tension member 8 is pressed by the movable portion 8c, and an appropriate tension is applied to the yarn y by the gate tension member 8. Thus, the yarn y drawn upward from the yarn supply package 1 is a swirling air flow generating member in which the lower yarn guide 2a, the gate tension member 8, and the fixed guide member 4 and the moving guide member 5 are arranged above and below. 3 and the upper yarn guide 2b and the like, and then wound around a winding package (not shown). As described above, the yarn y is sandwiched between the fixed guide member 4 and the moving guide member 5 at the upper and lower positions of the swirling airflow generating member 3, but the yarn y is sandwiched between the fixed guide member 4 and the moving guide member 5. Needless to say, the force is such that it does not obstruct the running of the yarn y or damage the yarn y.
[0016]
The yarn y sandwiched between the fixed guide member 4 and the movable guide member 5 at the upper and lower positions of the swirling air flow generating member 3 so as to be positioned at the substantially central portion of the vertical hole 3a of the swirling air flow generating member 3 is swirling air. Ballooning is performed between the pinching points of the fixed guide member 4 and the movable guide member 5 by the swirling airflow in the vertical hole 3 a of the flow generating member 3. The size of the balloon formed by the swirling airflow is such that the pinching point of the yarn y between the fixed guide member 4 and the moving guide member 5 is positioned at the substantially central portion of the vertical hole 3a of the swirling airflow generating member 3. So it will be a big thing. Accordingly, fluff or dust that is simply attached to the yarn y is effectively removed by the swirling airflow and ballooning, and the fluff protruding from the surface of the yarn y is applied to the surface of the yarn y. A fluff binding process is performed to reduce the amount of fluff.
[0017]
Further, if the yarn y has a weak portion in strength, the yarn y swung by ballooning is cut at the weak portion in ballooning. The yarn y cut at the weak portion of the strength is spliced by a splicing device such as a knotter or a splicer (not shown). In this way, in the rewinding process, it is possible to remove in advance the weak part in strength, so in the next process such as the warping process, the weak part in strength is cut, and the work efficiency of the warping process and the like is reduced. It is possible to prevent this, and the work efficiency of the next process such as the warping process is improved.
[0018]
In the above-described embodiment, the means for maintaining the yarn y at the substantially central portion of the vertical hole 3 a of the swirling airflow generating member 3 is fixed guide member 4 disposed at the entrance / exit of the swirling airflow generating member 3. And the moving guide member 5 biased in the direction of the fixed guide member 4 has been shown. However, the yarn y is connected to the entrance / exit of the swirling airflow generating member 3 and the vertical hole of the swirling airflow generating member 3 is used. Thread guides such as eyelet guides and wire guides to be maintained are provided at the substantially central portion of 3a, and the yarn y is maintained at the substantially central portion of the vertical hole 3a of the swirling airflow generating member 3 by such a thread guide. It can also be configured as follows. However, a means for maintaining the yarn y at the substantially central portion of the vertical hole 3a of the swirling air flow generating member 3 is a fixed guide member 4 disposed at the entrance and exit of the swirling air flow generating member 3, and the fixed guide member 4 By constituting the moving guide member 5 biased in the direction, the moving guide member 5 is rotated in a direction away from the fixed guide member 4, and the moving guide member 5 is turned into the swirling air flow generating member 3 of the yarn y. Therefore, the thread y can be easily inserted into the swirl air flow generating member 3 through the vertical hole 3a.
[0019]
As described above, since both the movable guide member 5 and the movable portion 8c of the gate tension member 8 are attached to the vertical rod 7, the movable guide member 5 and the movable portion of the gate tension member 8 are rotated by the rotation of the vertical rod 7. 8c can be rotated at the same time. Therefore, the maintenance of the yarn y at the substantially central portion of the vertical hole 3a of the swirling airflow generating member 3 and the clamping of the yarn y to the gate tension member 8 can be performed in a short time. And can be easily performed.
[0020]
The embodiment shown in FIG. 5 includes a swirling air flow generating member 3 ′ similar to the swirling air flow generating member 3 described above. It is arranged under the gate tension member 8 ′ similar to the gate tension member 8 described above. Reference numeral 11 denotes a cylindrical wax member attached to a vertical rod 7 'similar to the above-described vertical rod 7 for applying wax to the yarn y. 5 ′ is a movement guide member similar to the movement guide member 5 described above, 10 ′ is a yarn trap similar to the yarn trap 10, 12 is a fluff that has been shaken off by ballooning of the yarn y, and fluff This is a suction nozzle for preventing scattering of air, and 13 is a cleaning air-blast nozzle for ejecting air. Reference numerals 14 and 15 are fixed guides for guiding the yarn y, and reference numeral 16 is a photoelectric sensor for detecting the lower thread. Thus, the arrangement positions of the swirling airflow generation member 3 and the movement guide member 5 are not limited to the above-described embodiments.
[0021]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be achieved.
[0022]
The fluff protruding from the surface of the yarn can be effectively suppressed, and the portion that is weak in strength can be cut and removed by ballooning. Therefore, it is possible to prevent the work efficiency such as the warping process from being reduced and the work efficiency of the next process such as the warping process is improved.
[0023]
With a simple configuration of a swirling air flow generating member that generates a swirling air flow, and means for maintaining a thread at a substantially central portion of the vertical hole of the swirling air flow generating member at the entrance and exit of the swirling air flow generating member, Fluff protruding from the surface of the yarn can be effectively suppressed, and the weak portion can be cut and removed.
[0024]
Means for maintaining the yarn at a substantially central portion of the vertical hole of the swirling air flow generating member, a fixed guide member disposed at the entrance and exit of the swirling air flow generating member, and a moving guide biased in the direction of the fixed guide member The moving guide member is rotated in a direction away from the fixed guide member, and the moving guide member is retracted so as not to obstruct the introduction of the yarn into the vertical hole of the swirling airflow generating member. Therefore, the threading air flow generating member can be easily inserted into the vertical hole.
[Brief description of the drawings]
FIG. 1 is a partial perspective view of a yarn winding device to which a yarn processing method of the present invention is applied.
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a perspective view of a swirling air flow generating member and a fixed guide member constituting the yarn processing apparatus of the present invention.
FIG. 4 is a horizontal sectional view of the vicinity of the central portion of the swirling air flow generating member constituting the yarn processing apparatus of the present invention.
FIG. 5 is a partial perspective view of a yarn rewinding device according to another embodiment to which the yarn processing method of the present invention is applied.
[Explanation of symbols]
3 ... whirling airflow generating member 3a ... vertical hole 4 ... fixed guide member 5 ... ..Movement guide members

Claims (3)

The yarn is disposed at the substantially central portion of the vertical hole of the swirling air flow generating member, which is arranged at the yarn inlet of the swirling air flow generating member that generates the swirling air flow and the yarn outlet of the swirling air flow generating member, respectively. While maintaining the yarn at a substantially central portion of the vertical hole of the swirling air flow generating member by the guide member to be maintained, the yarn is ballooned by the swirling air flow of the swirling air flow generating member , and fuzz is suppressed. A yarn processing method characterized by cutting a weak portion of the yarn in strength. A swirling airflow generating member that generates a swirling airflow , and a yarn at the yarn inlet of the swirling airflow generating member and a yarn outlet of the swirling airflow generating member, respectively , A yarn processing device, characterized in that a guide member is provided at a substantially central portion of the vertical hole. Guide members for maintaining the yarn at substantially the center of the vertical hole of the swirling air flow generating member are disposed at the yarn inlet of the swirling air flow generating member and the yarn outlet of the swirling air flow generating member, respectively. The yarn processing apparatus according to claim 2 , comprising a fixed guide member and a moving guide member biased in the direction of the fixed guide member.

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