JP2002155423A - Apparatus for removing liquid of yarn and method for producing yarn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide both an apparatus for removing a liquid of a yarn, with which a liquid attached to a traveling yarn can be stably and efficiently removed and a method for producing a yarn. SOLUTION: This apparatus for removing a liquid is equipped with a plurality of thread route formation members each having a liquid spray nozzle jetting a pressurized fluid in an oblique direction on a traveling yarn and a fluid supply means for supplying the pressurized fluid to the fluid spray nozzle. A plurality of the thread route formation members are mutually separately arranged so as to form a yarn traveling route and a yarn guide part between adjacent thread route formation parts, the spray flow of the sprayed pressurized fluid is intersected with the yarn on the upstream side of the yarn traveling route formed by a plurality of the thread route formation members with respect to the yarn traveling direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing liquid adhering to a running yarn surface by washing or cooling treatment, and a method for manufacturing a yarn.

[0002]

2. Description of the Related Art A wet method is one of the frequently practiced methods for producing synthetic fibers. This method includes a manufacturing process,
This is a method of manufacturing a yarn by discharging a polymer solution into a liquid that has coagulability with the solution and solidifying it. However, in order to prevent a decrease in yarn strength, washing is performed by washing a coagulating liquid attached to the yarn. A process is also required. In addition, even if not a wet method, a method for producing a synthetic fiber requires a cooling tank for cooling a yarn made of synthetic resin melted and spun from a die.

[0003] The yarn used in the washing step and the cooling step adheres to the yarn surface of the yarn which has passed through the washing step and the cooling step. If the adhering liquid is not sufficiently removed, for example, the friction coefficient is reduced. In the oil application process of applying oil to yarn for the purpose of preventing static electricity or static electricity, if the treatment is incomplete and uniform oil application becomes difficult, or if the yarn with liquid adhered is wound up, Only water evaporates, and low-polymerized substances and foreign substances contained in the adhesion liquid are precipitated, and the product value of the yarn decreases.

[0004] As described above, it is necessary to sufficiently remove the adhering liquid for the subsequent process. For example, Japanese Patent Publication No. 55-4317 discloses such an apparatus. In the yarn path that widens on the side,
An apparatus is disclosed in which a divergent nozzle for jetting compressed air is provided so as to be inclined toward the running direction of the yarn.

[0005] However, in this device, since a gas injection port for removing liquid is provided in the yarn path (closed space), the liquid removed from the yarn by the action of the injected jet is removed. It adheres over the entire inner wall of the roadway. On the other hand, the running yarn vibrates violently over the entire yarn path due to the disturbance of the jet flow injected from the injection port, and comes into contact with the inner wall surface of the yarn path. Therefore, even if the fluid is once removed from the yarn, there is a problem that the liquid adhering to the inner wall surface of the yarn path adheres again to the yarn after the liquid removal process and a sufficient effect cannot be expected.

Further, in the above-described apparatus, since there is one injection port, the removal efficiency is low. Further, according to the disturbing action by the jet, there is a problem that the yarn violently comes into contact with and rubs against the wall surface, the yarn is damaged and the desired quality cannot be obtained, and the yarn is broken and stable production cannot be continued. is there.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and a yarn liquid removing apparatus and a yarn manufacturing method capable of stably and efficiently removing liquid adhering to a running yarn. The aim is to provide a method.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention comprises a plurality of yarn path forming members having a fluid injection port for injecting a pressurized fluid obliquely to a running yarn;
A fluid supply unit for supplying a pressurized fluid to the fluid ejection port, wherein the plurality of yarn path forming members form a yarn running path and a yarn introduction section between the adjacent yarn path forming members. The jets of the injected pressurized fluid are separated from each other so that
A yarn liquid removing device is characterized in that it intersects with a yarn on the upstream side in the yarn traveling direction with respect to a yarn traveling direction formed by a plurality of yarn path forming members.

The present invention also provides a plurality of yarn path forming members having a fluid ejection port for ejecting a pressurized fluid to a traveling yarn from an oblique direction, and a fluid supply for supplying a pressurized fluid to the fluid ejection port. Means, the plurality of yarn path forming members form a yarn running path and a yarn introducing section between the adjacent yarn path forming members, and form a fluid ejection port as a pair. Liquid removal of a yarn which is arranged at a distance and in which the jet of the injected pressurized fluid intersects with the yarn on the upstream side with respect to the yarn traveling direction from the yarn traveling path formed by the plurality of yarn path forming members The apparatus is characterized.

In the above apparatus, at least three yarn path forming members are provided, and the center point of the fluid ejection port provided in each yarn path forming member is in a plane orthogonal to the yarn traveling direction. Preferably, a guide for guiding the traveling yarn to the yarn traveling path formed by the yarn path forming member is provided.

[0011] The present invention also relates to a method for producing a yarn including a step of injecting a pressurized fluid onto a traveling yarn to which a liquid is attached to remove the liquid, wherein the pressurized fluid is applied to the traveling yarn. The pressurized fluid is jetted from an oblique direction, and the jet of the pressurized fluid intersects the yarn in an open space upstream of the injection position of the pressurized fluid in the yarn running direction. Further, the present invention is a method for producing a yarn including a step of injecting a pressurized fluid onto a traveling yarn to which a liquid is attached to remove the liquid, wherein the pressurized fluid is applied to the traveling yarn. The jet is injected from an oblique direction so that the jetting force is offset in a direction perpendicular to the yarn, and the jet of the pressurized fluid is generated in an open space upstream of the injection position of the pressurized fluid with respect to the yarn running direction. It is characterized by crossing the yarn.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic perspective view showing an embodiment of the liquid removing apparatus of the present invention, and FIG. 2 is a sectional view taken along the line ZZ in the apparatus of FIG. FIG. 3 is a top view of the apparatus of FIG. 1 as viewed from the direction A, and FIG. 4 is a cross-sectional view of the apparatus of FIG.

The liquid removing apparatus 1 of the present invention supplies a pressurized fluid to a fluid ejection port to be described later, a fluid supply member 6 having a pressurized fluid introduction passage 12 therein, and a pressurized fluid supply member 6. It is composed of yarn path forming members 2, 3, 4 and the like provided at intervals along the fluid introduction direction (the direction of the arrow in FIG. 2).

Each of the yarn path forming members 2, 3, and 4 is formed of a plate so that the entire circumference of the yarn is not covered with the yarn path forming member. In order to form the yarn running path 8 of the yarn Y and the yarn introduction portion 9,
They are spaced apart by spacers 14 and fastened by fastening bolts 16 via fastening members 5 to be integrated.

The thread path forming members 2, 3, 4, the spacer 14 and the clamping member 5 integrated with the clamping bolt 16 and the fluid supply member 6 are fixed by two bolts 17, and the thread path is fixed. An O-ring 15 is also provided to prevent leakage of fluid from the mating surfaces of the forming members 2, 3, 4 and the fluid supply member 6.

The fluid supply member 6 branches and supplies the fluid to the fluid introduction port 13 for introducing the fluid, the pressurized fluid introduction passage 12, and the fluid passages 10 of the yarn path forming members 2, 3, and 4. A plurality of fluid supply ports 11 are provided.

The material of the yarn path forming member may be any material that is durable with respect to the yarn. For example, a metal, ceramic, glass or the like is suitable.

Each of the yarn path forming members 2, 3, and 4 is provided with a fluid ejection port 7 and a fluid passage 10 for communicating the fluid ejection port 7 with the fluid supply member 6. I have.

The fluid injection port 7 injects gas symmetrically with respect to the traveling yarn Y from an oblique direction, and the injected jet F
The yarn is formed so as to intersect with the yarn Y on the upstream side of the yarn running path 8 formed by the yarn path forming members 2, 3, and 4, that is, the liquid removal space becomes an open space.

It is preferable to provide a total of at least three fluid injection holes 7 per yarn from the viewpoints of catching the yarn by the jet flow and fluid removal efficiency, but in a direction perpendicular to the yarn running direction. In order to prevent the unbalance of the jetting force in the above, the center of each of the fluid jets 7 is further aligned with respect to the traveling direction of the yarn Y so as to form a pair with the fluid jets of the other adjacent yarn path forming members. It is preferable to provide them so as to be located in the same plane orthogonal to each other. That is, it is preferable to provide a total of four holes or more for one yarn, two holes for each yarn path forming member.

In the present invention, the fluid injection port 7
The jet of the injected pressurized fluid intersects with the yarn on the upstream side of the yarn traveling path formed by the yarn path forming members 2, 3, and 4 with respect to the yarn traveling direction, that is, passes through the liquid removal space. Since it is provided as an open space, it is possible to prevent the liquid scattered after the removal from attaching to the yarn again or to adhere to the wall surfaces of the yarn path forming members 2, 3, and 4, and the removed liquid can be applied to the yarn. Redeposition can be prevented, and the adhered liquid can be effectively removed. Further, by configuring the fluid ejection port 7 so as to form a pair with the fluid ejection port of the other adjacent yarn path forming member, the pressurized fluid is linearly symmetric with respect to the traveling yarn, that is, the traveling yarn. Can be sprayed so that the force in the direction perpendicular to the direction is canceled, so that the yarn can be prevented from coming into contact with the yarn path forming member, and the adhered liquid can be more reliably prevented from re-adhering to the yarn. .

In the yarn manufacturing apparatus, it is preferable that a guide is provided in the above-described liquid removing apparatus 1 so as to be configured as shown in FIG. 5 and provided in a stage subsequent to the washing apparatus and the cooling apparatus.

In FIG. 5, BG is a pair of guides for guiding the yarn Y to the yarn running path 8 of the liquid removing device 1, sandwiching the liquid removing device, and a yarn inlet / outlet of the liquid removing treatment device. The parts are arranged at predetermined intervals from each of the parts. In order to cope with multiple yarns,
Although a configuration based on a combination of bar guides is preferable, any configuration may be used as long as the yarn Y can be guided stably to the yarn traveling path 8 such as a slit guide, a snail guide, and a dog tail guide.

Next, a liquid removing method by the above-described yarn liquid removing apparatus 1 will be described.

First, a pressurized fluid is supplied to the fluid supply member 6 from a fluid source (not shown) such as a compressor. The pressurized fluid is fed into the pressurized fluid introduction passage 12 through the fluid supply port 13, and then branches through the fluid supply port 11 into the fluid passages 10 of the yarn path forming members 2, 3, and 4. Supplied. The pressurized fluid that has passed through the fluid passages 10 of the yarn path forming members 2, 3, and 4 is injected from the fluid injection port 7 to the yarn Y. At this time, the compressed fluid is jetted from a plurality of locations and obliquely to the traveling yarn Y.

Here, in the present invention, the jet F is directed upstream of the yarn traveling path formed by the yarn path forming member in the yarn traveling direction (ie, at a position where there is no yarn path forming member around the yarn). Cross with the thread. By doing so, the liquid removal space becomes an open space, and the removed liquid adheres to the wall surface of the yarn path forming member forming the yarn traveling path, and the liquid scattered after removal adheres to the yarn again. Can be prevented, and the adhered liquid can be effectively removed. Further, by injecting the pressurized fluid obliquely with respect to the traveling yarn and so that the ejection force is offset in a direction orthogonal to the yarn traveling direction, the yarn is injected into the yarn path forming member. Contact can be prevented, and reattachment of the adhered liquid to the yarn can be more reliably prevented.

Further, in the present invention, in the method for producing a yarn including a washing step and a cooling step, and a step of applying an oil agent for reducing a friction coefficient and preventing static electricity, the above-described liquid removing step is performed after the washing step and the cooling step. By providing the process, it is possible to uniformly apply the oil agent, and also, it is possible to prevent the low polymer, the precipitation of foreign matter in the manufactured yarn, and to prevent the product value of the yarn from decreasing, As a result, stable production becomes possible.

[0029]

<Example 1> Nylon 6 of 1770 dtex
After the monofilament is melt-spun, cooled in water at room temperature, taken off at a speed of 30 m / min, then drawn in hot water at 60 ° C., and subjected to a liquid removal treatment by a liquid removal device shown in FIG. At a speed of 100 m / min.

The water content of the monofilament thus obtained was measured and found to be 5% by weight. Even if the monofilament was allowed to stand for one week, the initial surface condition was maintained, and no generation of foreign matter was observed. . <Comparative Example 1> A yarn was produced and the water content was measured in the same manner as in Example 1 except that the liquid was removed by sandwiching the yarn between two felts having a thickness of 5 mm.

As a result, the water content was 15% by weight, and when the monofilament was allowed to stand for one week, generation of white powder which was considered to be a low polymer was observed on the surface of the monofilament.

[0032]

As described above, in the present invention, the pressurized fluid is blown from the oblique direction to the running yarn, and the jet of the injected pressurized fluid is formed by a plurality of yarn path forming members. Because it intersects with the yarn in the open space on the upstream side with respect to the yarn running direction from the set yarn running path,
The liquid can be effectively removed from the yarn immersed in the liquid for the purpose of cooling or the like. For this reason, it is possible to suppress damage to the yarn, yarn breakage, and the like, which cause deterioration in quality and yarn breakage, thereby enabling stable production.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a yarn liquid removing device according to an embodiment of the present invention.

FIG. 2 is an arrow view of a ZZ cross section in FIG.

FIG. 3 is a top view of the device of FIG. 1 as viewed from a direction A.

FIG. 4 is a sectional view taken along the line XX in the apparatus of FIG. 3;

FIG. 5 is a schematic perspective view of a yarn manufacturing apparatus showing one embodiment of the present invention.

[Explanation of symbols]

 1: yarn liquid removing device 2, 3, 4: yarn path forming member 5: fastening member 6: fluid supply member 7: fluid injection port 8: yarn traveling path 9: yarn introduction section 10, 11: introduction path 12: pressurized fluid introduction path 13: fluid supply hole 14: spacer 15: O-ring 16: tightening bolt 17: bolt Y: thread BG: guide guide F: jet

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B154 AA08 AB04 BA17 BA18 BB15 BB35 BB42 BB47 BC08 BC12 BC17 BC48 BE01 DA06 DA30 4L045 AA02 AA05 DA19 DA34 DA60

Claims (6)

[Claims] 1. A plurality of yarn path forming members having a fluid ejection port for injecting a pressurized fluid obliquely to a traveling yarn,
A fluid supply unit for supplying a pressurized fluid to the fluid ejection port, wherein the plurality of yarn path forming members form a yarn running path and a yarn introduction section between the adjacent yarn path forming members. The jets of the injected pressurized fluid are separated from each other so that
An apparatus for removing liquid from a yarn, wherein the liquid intersects the yarn on the upstream side in the yarn traveling direction with respect to the yarn traveling path formed by the plurality of yarn path forming members. 2. A plurality of yarn path forming members having a fluid ejection port for injecting a pressurized fluid obliquely to a traveling yarn,
A fluid supply unit for supplying a pressurized fluid to the fluid ejection port, wherein the plurality of yarn path forming members form a yarn running path and a yarn introduction section between the adjacent yarn path forming members. And the fluid ejection ports are arranged apart from each other so as to form a pair,
A liquid removal of the yarn, wherein the jet of the injected pressurized fluid intersects with the yarn on the upstream side with respect to the yarn traveling direction from the yarn traveling path formed by the plurality of yarn path forming members. apparatus. 3. The apparatus according to claim 1, further comprising at least three yarn path forming members, wherein a center point of the fluid ejection port provided on each of the yarn path forming members is in a plane orthogonal to the yarn running direction.
3. The yarn liquid removing device according to claim 1. 4. The yarn liquid removing device according to claim 1, further comprising a guide for guiding the traveling yarn to a yarn traveling path formed by the yarn path forming member. 5. A method for producing a yarn, comprising a step of injecting a pressurized fluid onto a running yarn to which a liquid is attached to remove the liquid, wherein the pressurized fluid is obliquely directed to the running yarn. And a jet of the pressurized fluid intersects with the yarn in an open space upstream of the injection position of the pressurized fluid in the yarn running direction. 6. A method for producing a yarn, comprising a step of injecting a pressurized fluid onto a traveling yarn to which a liquid has adhered to remove the liquid, wherein the pressurized fluid is inclined with respect to the traveling yarn. From the direction and the jetting force is offset in the direction orthogonal to the yarn, and the jet of the pressurized fluid is jetted in the open space upstream of the jetting position of the pressurized fluid in the yarn running direction. A method for producing a yarn, wherein the yarn is crossed.