JP2003113530A - Spinning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spinning device which can shorten a time used for a threading work, a spinning pack-exchanging work, a spinneret face-cleaning work, and/or the like, and enables the works in good production efficiency without breaking filaments. SOLUTION: The arm 33 of an oiling guide unit 30 is rotated to move an oiling guide 31 and a collecting guide 32 to positions apart from prescribed filament routes. Filaments are lowered, sucked with a suction 39, and threaded in a collecting guide 32. Then, the oiling guide and the collecting guide are moved to the prescribed filament routes, and the arm 33 is fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oiling guide and a focusing guide of a spinning device applied to a manufacturing facility for synthetic filament yarn.

[0002]

2. Description of the Related Art A conventional spinning device is provided with a spin beam for spinning a molten polymer and a cooling device for cooling a plurality of filaments spun under the spinning beam. The filament to which the oil agent has been applied is bundled by the focusing guide to be taken up as a yarn and wound by the winder.

In the cooling device, for example, a cooling air introduction part and an air ejector mechanism are provided below the spin beam, and an outside air flow is taken into the cooling air introduction part by the suction action of the air ejector mechanism to cool the filament. There is something.

By the way, in the yarn threading work from the spinning device to the winder, conventionally, before the suction of the yarn spun from the spin beam, the refueling guide and the focusing guide are removed, It was reattached during suction suction. This is because the movement is unstable until the spun yarn is sucked by suction, so if both guides are attached, the yarn will entangle with those guides and suck the yarn by suction. Because I could not do it.

Further, at the time of spinning pack replacement work and cleaning of the spinneret surface, it is necessary to lower the cooling device to secure a working space. At this time, as the cooling device descends, a part of the cooling device comes into contact with the oil supply guide and the focusing guide. Therefore, even in this case, both the guides were removed and the work was performed.

[0006]

As described above, in the conventional spinning device, after removing the oil supply guide and the focusing guide in the yarn hooking operation, the yarn is sucked by suction, and the guides are sucked again during the suction. Since it has to be attached, a lot of time is spent on the thread hooking work, and further, when the guides are attached, the yarn during suction suction may be entangled to cause yarn breakage.

Also, in the spinning pack replacement work and the spinneret cleaning work, it is necessary to remove the oil supply guide and the focusing guide in order to avoid contact with the cooling device, and a lot of time is spent on the work.

Therefore, an object of the present invention is to reduce the time spent for thread hooking work, spinning pack replacement work, spinneret cleaning work, etc., and to carry out those operations without yarn breakage. To provide a good spinning device.

[0009]

In order to achieve the above object, a spinning device of the present invention focuses an oiling guide for applying an oil agent to a plurality of filaments spun and passed through a cooling device and a filament to which the oil agent is applied. It is characterized in that an oil supply guide unit in which the focusing guides are assembled is provided. By moving the oil supply guide unit, the oil supply guide and the focusing guide are retracted out of the yarn path. Further, it is also possible that the cooling device and the oil supply guide unit are interlocked with each other, and the oil supply guide unit moves as the cooling device descends so that the oil supply guide and the focusing guide retreat to the outside of the yarn path.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic front view showing an example of the spinning device according to the present invention.

Reference numeral 2 is a well-known spin beam having a heating and heat retaining function for spinning a molten polymer, and a cooling device is a cylindrical cooling air provided below a spinning pack 6 provided in the spin beam 2. An oil agent guide unit 30 that consists of an introduction portion 7 and an air ejector mechanism 8 that is provided vertically following the cooling air introduction portion 7 and that applies an oil agent to the yarn and focuses the yarn is provided below the air ejector mechanism 8. A winder 50 for winding the spun yarn is disposed downstream of the winder 50.

The spin beam 2 has a spinning pack 6 in which a metalling pump 3, a distribution block 4 and a spinneret 41 are arranged, which are communicated with each other through a polymer tube 5. The molten polymer supplied to the ring pump 3 is spun from the spinneret 41.

Further, as shown in FIG. 3, the cooling air introducing portion 7 is a hollow air rectifying body 51 formed by laminating disk-shaped plates radially shaped in a waveform from the center a in the longitudinal axis direction. And the inner porous tube 52 having a plurality of holes on the cylindrical peripheral surface surrounding the air rectifying body 51 is the air ejector mechanism 8
Is attached to the duct 11 which houses a part of the inner perforated pipe 52, and is further provided with an outer perforated pipe 53 concentric with the inner perforated pipe 52 and having a plurality of holes on a cylindrical peripheral surface surrounding the inner perforated pipe 52. It has become.

The holes on the peripheral surfaces of the inner perforated tube 52 and the outer perforated tube 53 may be circular or elliptical holes or slit-like long holes.

Then, in order to control the amount of air introduced into the air rectifying body 51 from the periphery of the air rectifying body 51, a plate piece 10 provided with an arc-shaped long hole is attached to the lower portion of the outer perforated pipe 53, and the outer perforated pipe 53 The tube 53 is rotatable left and right at least between a position where the holes of the outer surface of the outer perforated tube 53 and the holes of the outer surface of the inner perforated tube 52 are in phase with each other and out of phase with each other by the size of the holes. , Are fixed to the duct 11 with bolts at arbitrary phases through the arc-shaped elongated holes.

Since the air rectifying body 51 is formed by laminating the corrugated disk-shaped disc-shaped plates in the longitudinal axis direction, the periphery and the inside of the air rectifying body 51 are communicated with each other. Can be freely distributed. Further, in the joint portion between the air rectifying body 51 and the duct 11, the inside of the air rectifying body 51 and the inside of the duct 11 are engaged and communicate with each other.

The air ejector mechanism 8 is composed of an air injection section 60 and a descending airflow guide tube 9, and the air injection section 60 is concentric with the center of the air rectifier 51 as shown in FIGS. Introductory pipe 61 through which the airflow from Article Y and the upstream part passes
Is provided so as to be engaged with the air rectifying body 51, and the injection pipe 62 is provided so as to surround the small diameter portion formed on the introduction pipe 61 via the taper. Air is injected into the injection pipe 62 from between the injection pipe 62 and the introduction pipe 61.

The injection pipe 62 is formed with a rectifying portion 63 and an injection port 65 for rectifying the air flow injected into the injection pipe 62.
A plurality of annular partition plates 64 are fitted in the rectifying portion 63 in the air flow direction, and the injection port 65 intersects the longitudinal axis of the air ejector mechanism 8 at an angle θ. This angle θ
Is preferably set between 0 and 3 degrees.

A downward airflow guide tube 9 is formed below the air injection section 60 so as to engage with the injection tube 62 and is formed integrally with the injection tube 62, and a plurality of holes are formed on the outer peripheral surface at the outlet thereof. An airflow deceleration portion 12 is provided which is provided and whose diameter is enlarged toward the end.

On the other hand, the duct 11 is integrally formed by accommodating the air ejecting portions 60 of the air ejector mechanisms 8 arranged in a row, and one end surface thereof is connected to a blower (not shown). In addition, the duct 11 is a guide rail 1 that is erected on both sides.
Pneumatic cylinder 1 protruding and fixed from 3 and 14
It is supported by 5 and 16. And the duct 11
Roller groups 17 and 18 are attached to both sides of the guide rails 13 and 14 so as to be engaged with each other.
By switching the air pressure supplied to 6, the duct 11 is guided by the roller groups 17 and 18 and moves up and down on the guide rails 13 and 14.

The air pressure supplied to the air pressure cylinders 15 and 16 is raised by the duct 11 during spinning, and the cooling air introducing portion 7 is supplied.
Is set so as to be pressed against the lower surface of the spin beam 2, and the roller groups 17 and 18 are configured to restrict movement of the duct 11 other than lifting and lowering operations.

Next, the refueling guide unit 30 will be described (see FIGS. 1 and 4 to 7). As shown in FIG. 1, the refueling guide unit 30 is located below the airflow deceleration portion 12 formed in the descending airflow guide tube 9.

Arms 33 are rotatably supported by left and right brackets 34 fixed to a frame body (not shown) via pins 35, respectively, and both arms 33 are connected to the connecting member 39 on the side opposite to the brackets 34. Are linked by. Then, the attachment member 40 to which the refueling guide 31 and the focusing guide 32 are attached is inserted and fixed to the connecting member 39. Then, the oil supply guide 31 is supplied with an oil supply from an oil supply device (not shown).

The number of the mounting members 40 is the same as the number of the bases 41 in the spin beam 2, and when the mounting members 40 are fixed, the refueling guide 31 is used.
The position and orientation of the focusing guide 32 are adjusted so as to correspond to the yarn running during the normal spinning operation.

The arm 33 can be rotated manually, but it can also be rotated by a motor or a cylinder mechanism.

Further, the lower surface of the spin beam 2 and the arm 33
Rollers 36 and 37 are rotatably attached to a frame (not shown) so as to form a triangle with an end surface of the arm opposite to the bracket 34, one end of which is attached to the duct 11 and the other end of which is attached to the arm 33. The fixed interlocking member 38 is wound. Then, as the duct 11 moves up and down, the arm 33 interlocks and rotates about the pin 35 as a fulcrum.

Here, one end of the interlocking member 38 has the duct 11
Alternatively, other member that moves up and down together with the duct 11 may be used, and the interlocking member 38 may be a wire or belt (flat, V, toothed).
And a rope or the like can be used. Needless to say, the rollers 36 and 37 corresponding to the interlocking member 38 used are used.

Here, a series of spinning steps according to this embodiment will be described with reference to the drawings.

As shown in FIG. 1, the molten polymer extruded from the spinneret 41 is gradually cooled by the cooling air introduction part 7 and reaches the air ejector device 8. The airflow introduced into the cooling air introduction unit 7 is generated by the negative pressure generated in the introduction pipe 61 of the air ejector mechanism 8 by the airflow sent into the duct 11 from the blower (not shown) connected to the duct 11. That is, the air whose temperature is controlled by the negative pressure is sucked into the cooling air introducing portion 7 from the periphery of the cooling air introducing portion 7.

The suction airflow of the cooling air introduction section 7 is stronger near the air ejector mechanism 8 and becomes weaker as it approaches the spinneret 41. When the air flow near the spinneret 41 is strengthened, a strong downward flow is generated from the vicinity of the spinneret 41 inside the air rectifying body 51, and the air flow becomes turbulent because there is an air flow further inward from the surroundings with respect to this downward flow. The generated turbulent flow causes vibration of the filament in the course of cooling, resulting in cooling unevenness and fineness unevenness. The velocity of the cooling air that does not cause the unevenness of the fineness is 15 m at the downstream portion of the cooling air introducing portion 7 when the fineness of the filaments forming the yarn is 3.7 dtx.
/ Min to 35 m / min is preferable, and the speed of the cooling air near the spinneret 41 is 1 / 1.2-1 / 2 of the speed of the cooling air. When the fineness of the filament is small, the velocity of the cooling air may be reduced, and when it is large, the velocity of the cooling air may be increased. In addition, as the fineness is larger, the length of the cooling air introduction part 7 is made longer so that the cooling air introduction part 7 becomes longer.
May be replaced.

At this time, the cooling air introducing portion 7 is kept so that the temperature in the cooling air introducing portion 7 does not drop to the solidification point of the filament.
Set the speed of the cooling air inside. The velocity of the cooling air in the cooling air introduction part 7 can be easily adjusted by changing the phases of the plurality of holes on the outer perforated tube peripheral surface with respect to the plurality of holes on the inner perforated tube peripheral surface by the outer perforated tube 53.

On the other hand, the injection pipe 62 of the air ejector mechanism 8
Downstream, the air flow from the injection pipe 62 causes the introduction pipe 6
The filament and the air flow sucked from 1 are accelerated, and the filament reaches the solidification temperature while being cooled in the descending airflow guide tube 9. Since the inside of the descending airflow guide pipe 9 is exposed to the descending airflow flowing in the same direction as the filament, the air drag near the solidification point is reduced by this airflow, so that the stress applied to the filament is reduced and the orientation of the filament forming the yarn is reduced. Is suppressed.

The total length of the descending airflow guide tube 9 is 10
It is preferably not less than twice and not more than 50 times. If the total length is 10 times or less than the inner diameter, it becomes difficult to always stably hold the lower point in the descending airflow guide tube 9, and the yarn elongation varies.
Thread breakage in the subsequent process increases.

Further, when the total length is 50 times or more, the pressure loss in the descending airflow guide tube 9 increases, the negative pressure is not sufficiently generated in the upstream, and the cooling becomes insufficient, which causes unevenness in fineness. Not only that, due to the insufficient suction force, the yarn stays in the cooling air introduction section 7 during the yarn hooking, which makes the yarn hooking difficult.

The velocity of the descending airflow is controlled by the air pressure supplied to the air injection unit 60. If this supply air pressure is high and the descending airflow is too strong, strong turbulence and vortices will occur, causing yarn sway,
Since unevenness in fineness and yarn breakage occur, it is preferable to adjust the supply air pressure so that the wind speed near the air injection unit 60 is 3000 m / min or less. On the other hand, if the wind speed is too low, the effect of reducing the air drag force near the solidification point becomes small.

When the air pressure supplied to the air injection unit 60 is changed, the negative pressure generated in the introduction pipe 61 is also changed, so that the velocity of the cooling air from the upstream cooling air introduction unit 7 is also changed. In order to optimize the speed of the cooling air as described above, the air pressure supplied to the air injection unit 60 is adjusted, and as described above, the speed of the cooling air in the cooling air introduction unit 7 is adjusted by the outer perforated pipe 53. To do.

In the airflow speed reduction section 12 of the descending airflow guide tube 9,
The direction of the air flow that descends together with the filament changes, and the air flow that reaches the refueling guide 31 downstream with the filament is reduced, so the yarn sway in the refueling guide 31 is reduced, and the yarn sway propagated to the upstream is reduced. Occurrence can be prevented.

The filament thus exiting the descending airflow guide tube 9 is applied with an oil agent by the oil supply guide 31, is focused by the focusing guide and becomes a yarn Y, which is wound up by the winding machine 50.

By the way, when the normal spinning operation is stopped for some reason and the yarn hooking work on the winder 50 is required, first, as shown in FIG. 4, the arm 33 of the oil supply guide unit 30 is turned on. By rotating the refueling guide 31 and the focusing guide 32, the refueling guide 31 and the focusing guide 32 are moved to a position away from a predetermined yarn path. Next, the filament is lowered from the upstream side and sucked by the suction 39. Then, as shown in FIG. 5, the focusing guide 32 is threaded while paying attention to fluctuations in tension so that the filament is not cut. At this time, if the arm 33 is slightly tilted toward the yarn path, the work is good.

After the yarn has been hooked on the focusing guide 32, the arm 33 is rotated to the yarn path side as shown in FIG. 6, and the arm 33 is moved to a position where the refueling guide 31 and the focusing guide 32 are moved to a predetermined yarn path. To fix. Also, for that purpose, the arm 33
A positioning device and a fixing device (both not shown) for a predetermined yarn path are attached to this.

Then, the yarn that has exited the oil supply guide unit 30 is hooked on the winder 50 by a conventional means.

Further, the work of replacing the spinning pack 6 and the spinneret 41
During the cleaning work of the discharge surface, it is necessary to secure a working space between the lower surface of the spin beam 2 and the cooling air introducing portion 7 as shown in FIG. 7, and therefore the duct 11 must be lowered. At this time, as the duct 11 descends, the interlocking member 38 is wound around the rollers 36 and 37, so that the arm 33 rotates in the direction away from the yarn path. At this time, the refueling guide 31 and the focusing guide 32 are
Since the descending airflow guide tube 9 and the airflow deceleration portion 12 attached to the duct 11 are avoided, they do not come into contact with them. That is, even when the cooling device of the spinning device is lowered, the cooling device does not come into contact with the oil supply guide and the focusing guide.

After the replacement of the spinning pack and the cleaning of the spinneret surface are completed, the duct 11 is raised and the above-mentioned thread hooking operation is performed.

The following are examples of the spinning apparatus of the present invention,
It is a comparative example by a conventional spinning device.

[0045]

Embodiment 1 This is an embodiment of the yarn hooking work by the spinning device of the present invention, in which the refueling guide unit 30 is manually retracted from the yarn path before the filament is lowered from the upstream through the air ejector mechanism 8. After that, while sucking the lowered filament with the suction 39, the oil supply guide unit 30 was tilted to the yarn path side, and the yarn was hooked on the focusing guide 32. In this case, yarn breakage did not occur and the yarn could be easily hooked.

[0046]

[Comparative Example 1] This is a comparative example of a yarn hooking operation by a conventional spinning device. Before the filament is lowered from the upstream via the air ejector mechanism, the refueling guide and the focusing guide are removed, and then the lowered filament Was sucked by suction, and the refueling guide and the focusing guide which were removed during this suction were attached. Since the filament sucked during this mounting work was caught by the focusing guide and the yarn was broken, the filament was sucked again by suction, the refueling guide and the focusing guide were attached, and the focusing guide 32 was threaded. In this case, it took a long time to attach both guides, which was very difficult in the thread hooking work.

[0047]

[Embodiment 2] This is an embodiment for securing a space necessary for a spinning pack replacement work and the like by the spinning apparatus of the present invention, in which the duct 11 is lowered so as to be located between the lower surface of the spin block 2 and the cooling air introducing portion 7. I secured the necessary space. In this case, since the duct 11 and the oil supply guide unit 30 are interlocked with each other, the oil supply guide unit 30 retracts from the yarn path as the duct 11 descends. Therefore, the descending airflow guide tube 9 and the like attached to the duct 11 and the oil supply guide The work time required for lowering the duct 11 to secure the space without contacting with the 31 and the focusing guide 32 was 10 seconds, which was very short and easy. After the completion of the spinning pack replacement work and the like, the duct 11 is only required to be raised to return the oil supply guide unit 30 to the predetermined position, which makes the work very easy.

[0048]

[Comparative Example 2] This is a comparative example for securing a space necessary for a spinning pack replacement operation by a conventional spinning apparatus, in which a duct descending before the duct is brought into contact with a refueling guide and a focusing guide. In order to avoid the above, the same number of refueling guides and focusing guides as in the second embodiment were removed, and then the duct was lowered to secure the same working space as in the second embodiment. In this case, it takes 10 minutes to lower the duct, and further, after the spinning pack replacement work is completed, the both guides must be attached to the predetermined positions, which is a considerable effort. .

[0049]

As described above, according to the present invention, since the refueling guide and the focusing guide can be retracted to the outside of the yarn path without removing the yarn guide, there is no yarn breakage during the yarn hooking operation, and the yarn hooking operation can be easily performed in a short time. You can

Further, since the lowering operation of the cooling device is interlocked with the retreating operation of the lubrication guide and the focusing guide from the yarn path, it is necessary to remove the lubrication guide and the focusing guide from the working space necessary for the spinning pack replacement work. Since it can be secured without any need, it is possible to start spinning pack replacement work in a very short time. As a result, the spinning operation efficiency is improved and the yarn productivity is improved.

[0051]

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a structure of an air injection unit according to the present invention.

FIG. 3 is a perspective view showing a structure of a cooling air introduction part in the present invention.

FIG. 4 is a side view illustrating a thread hooking operation in the present invention.

5 is an exemplary detailed side view of the threading operation in FIG.

FIG. 6 is a side view showing a fixed position of the oil supply guide unit in the present invention.

FIG. 7 is a side view showing a state of the oil supply guide unit when the duct is lowered in the present invention.

[Explanation of symbols]

2 spin beams 6 Spin pack 7 Cooling air introduction section 8 Air ejector mechanism 9 Downdraft guide tube 11 ducts 12 Airflow speed reducer 30 Refueling guide unit 31 Refueling Guide 32 Focusing guide 33 arms 34 bracket 35 pin 36, 37 rollers 38 Interlocking member 39 Connection member 40 Mounting member 41 Spinneret

Claims (3)

[Claims] 1. A cooling device which is provided so that a plurality of filaments spun from a spinneret in a spin pack can be moved up and down on the downstream side of the spinneret, and an oiling guide which is provided on the downstream side and applies an oil agent to the filament. A spinning device for drawing a filament to which an oil agent has been applied as a yarn through a focusing guide for focusing the filament, wherein the lubrication guide unit including the lubrication guide and the focusing guide is provided. 2. A spinning device, wherein the refueling guide and the focusing guide are retracted outside the yarn path by moving the refueling guide unit. 3. The cooling device and the oil supply guide unit are interlocked with each other, and the cooling device is lowered and the oil supply guide unit is moved so that the oil supply guide and the focusing guide are retracted out of the yarn path. The spinning device according to claim 1, which is characterized in that.