JPS6215313A - Dry and wet spinning apparatus - Google Patents

Abstract

PURPOSE:To make a spinneret movable between the spinning position and the spinneret-correction position above the spinning position, by connecting a bendable spinning dope-supplying tube to a spinneret positioned close to the liquid surface of a coagulation bath. CONSTITUTION:A spinneret 2 is placed close to the liquid surface 4f of a coagulation bath 4, and the spinning dope extruded from the spinneret is introduced through a narrow gap into the coagulation bath. In the above dry and wet spinning apparatus, the spinning dope is supplied to the spinneret 2 by a bendable tube 6 to enable the displacement of the spinneret 2 between the spinning position and the spinneret-correction position above the spinning position.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to dry/wet spinning equipment.

[Conventional technology]

In the dry/wet spinning method, a spinneret is placed above the liquid surface of the coagulation bath through a small space, and the spinning stock solution discharged from the spinneret is introduced into the coagulation bath through the space. It is used to solidify the liquid. On the other hand, this dry
In the wet spinning method, if the yarn discharged from the spinneret becomes bent or drips at the start of spinning, etc., wipe the surface of the spinneret with a coagulant or release agent. By doing so, normal re-spinning is possible without replacing the spindle. Such cleaning of the spinneret surface is generally referred to as " spinneret repair ".

However, in the dry/wet spinning method, as mentioned above, the spinneret is placed close to the coagulation bath liquid level, so when making the above-mentioned spinneret correction, the coagulation bath liquid level must be lowered considerably. No. For this reason, it takes a long time to stop and withdraw the coagulation liquid, and it also takes a long time to return the coagulation bath liquid level to the original water level and restart spinning after the spinneret is corrected, which reduces productivity. This was causing a significant decline. This problem is especially serious when multi-spindle spinning is performed.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a dry/wet spinning device that can easily perform spinneret correction work and significantly improve productivity.

[Structure of the invention]

The present invention, which achieves the above object, is a dry/wet method in which a spinneret is disposed through a small space from the surface of the coagulation bath, and the spinning stock solution is discharged from the spinneret through the small space into the coagulation bath and coagulated. In the spinning device, the supply pipe that supplies the spinning dope to the spinneret is configured to be flexible, so that the spinneret can be freely switched between a spinning position close to the coagulation bath liquid level and a spinneret correction position where it is pulled upward. It is characterized by this.

〔Example) The present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 1 shows a dry/wet spinning device according to the present invention.
1 is a main body frame extending vertically; 2 is a spinneret union attached to this main frame 1 as described later;
3 is a coagulation bath.

A coagulating liquid 4 is put into the coagulating bath 3, and the spinneret union 2
The spinneret 2 faces the coagulation bath liquid level 4f through a small space.

The spinneret union 2 is attached to the lower end of a supply pipe 5, and the supply pipe 5 is connected via a supply pipe 6.7 to a spinning stock solution supply port 8 provided in the upper part of the main body frame 1. Each supply pipe 5.6.7 is surrounded by a heating jacket 9.10.11, and the pipe ends are connected to rotary joints 12, 1, respectively.
3 and are rotatably connected. In addition, the supply pipe 7
The upstream end of the supply port 8 is rotatably connected to the supply port 8 via a rotary joint 14.

As shown in FIG. 3, the above-mentioned low joint 13 has a joint part 30 fixed in an L shape on the supply pipe 7 side, and a joint part 31 fixed in an L shape on the supply pipe 6 side, and these joint parts 30. 31 are rotatably connected via bearings 32, 32. The rotary joint 12 also has a similar configuration to the rotary joint 13. In addition, the low joint 14 is
As shown in FIG. 2, a joint part 20 is fixed in an L shape on the supply port 8 side, and a joint part 21 is fixed in an L shape on the supply pipe 7 side, and these joint parts 20 and 21 are connected through a bearing 22. The structure is such that they are rotatably connected. Therefore, the supply pipes 6 and 7, and the supply pipe 7 and the supply port 8, are respectively bent through the above-mentioned rotary joints 13 and 14 so as to change the intersection angle in the longitudinal direction.

The supply pipe 5 is supported by a slider 15. The slider 15 is slidably supported by a slide support 16 vertically erected on the main body frame 1, and rollers 21° 21 provided on the rear side are connected to a steady rest provided parallel to the slide support 16. It is engaged with the guide groove 20 of. Further, a wire rope 17 is connected to the slider 15, and a weight 19 is connected to the opposite end of the wire rope 17 via a pulley 18.18, so that the weight 19 and the slider 15 are balanced. There is. The weight of this weight 19 is preferably set to be slightly smaller than the total weight of the slider 15, spinneret unit 2, etc. attached to the opposite side.

In the above-described device, when a vertical force is applied to the slider 15, the supply pipes 6, 7 are connected to the rotary joints 12, 13.1.
4, the slider 15 can be moved up and down along the slide support 16. Therefore, by raising and lowering this slider 15, the spinneret unit 7)
The height of 2 can be changed arbitrarily. Furthermore, since the slider 15 is moved up and down using the weight 19 in the embodiment, it can be done by applying only an extremely small force.

Therefore, in the dry/wet spinning apparatus described above, when performing spinning operation, the spinneret unit 2 (spinneret 2a
) should be done at a position close to the coagulation bath liquid level 4f shown by the solid line in Fig. 1. However, when correcting the nozzle, it is necessary to stop or drain the coagulation liquid 4 from the coagulation bath 3 as in the conventional method. Instead, it is sufficient to simply raise the slider 15 to the position shown by the chain line in FIG. That is, by moving the slider 15 to the position indicated by the chain line, the spinneret unit 2
Since a sufficient space can be provided between the spinneret 2a and the coagulation bath liquid level 4f below, the spinneret can be easily corrected.

In the above-mentioned embodiment, a rotary joint was used to make the spinning stock solution supply pipe bendable, but instead of this, a flexible pipe in which the supply pipe itself is flexible was used. Good too.

〔Effect of the invention〕

As described above, the dry/wet spinning apparatus of the present invention has a flexible structure for supplying the spinning dope to the spinneret,
Since the spinneret can be freely switched between the spinning position close to the coagulation bath liquid level and the spinneret correction position where it is pulled upwards, the spinneret can be easily corrected by simply pulling the spinneret upward. This also makes it possible to significantly improve productivity.

[Brief explanation of the drawing]

FIG. 1 is a side view of a dry/wet spinning apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line nn in FIG. 1, and FIG.
It is a sectional view taken along the line mm in the figure. 2--Spinneret unit, 2a--Spinneret, 3
...-coagulation bath, 4--coagulation liquid, 4f-coagulation bath liquid level, 5,6.7--supply pipe, 8--supply port, 12.1
3.14-...Lower joint, 15-Slider,
16-・Slide support.

Claims (1)

[Claims] In a dry/wet spinning apparatus, a spinneret is arranged through a small space from the liquid level of the coagulation bath, and a spinning stock solution is discharged from the spinneret into the coagulation bath through the small space and coagulated. Dry/wet spinning characterized in that the supply tube for supplying the stock solution is configured to be flexible, and the spinneret can be freely switched between a spinning position close to the coagulation bath liquid level and a spinneret correction position where it is pulled upward. Device.