JPS622043B2 - - Google Patents

Description

[Detailed description of the invention]

(a) Technical Field The present invention relates to a twin-roll continuous wet spinning method and apparatus. More specifically, the present invention aims to improve a roll-type continuous wet spinning method and apparatus that are excellent in equipment productivity and space productivity, that is, to run a plurality of spun yarns at high speed against rolls, During this time, after processing such as washing, reaction, scouring (hereinafter collectively referred to as scouring), drying processing, etc.
The present invention relates to improvements in a twin-roll continuous wet spinning method and apparatus configured to send yarn to a subsequent process such as a winding process. (b) Prior art and its problems Conventionally, in twin-roll wet continuous spinning, the axes are generally tilted to each other, as shown in Figure 2-42, page 443 of the Fiber Handbook (published on November 30, 1963, Maruzen). A pair of upper and lower rolls were used to run a single spun yarn in a helical pattern, and after scouring and drying, the yarn was wound up. Improving the efficiency of this process has long been desired. Drum-type continuous spinning methods and devices have already been proposed as methods and devices for processing a plurality of spun yarns with processing rolls (for example, Japanese Patent Publication No. 31-2364,
USP2883259 specification). In this method and apparatus, the upper processing roll (corresponding to the lower roll of the present invention) runs a plurality of threads at the same position, but the lower feed roll (corresponding to the upper roll of the present invention) runs a plurality of threads at the same position. ) are located at different distances from the processing rolls,
The length of the helical path of one turn of each yarn varies widely, resulting in differences in physical properties between each yarn, and when the yarn is made into a product, it has the disadvantage of causing staining and streaks. It was hot. In addition, drum-type continuous spinning has a limit to the processing speed of yarn, and in order to improve this, a proposal was made in JP-A-52-31116 to improve the processing speed by, for example, changing the diameter of the feed roll. There are, but
At most, the processing speed has reached only 160 m/min, and the processing speed remains at a low level. As an improvement to drum-type continuous spinning, an attempt was made to run a larger number of threads on rolls and to reduce the difference in the length of the helical traveling path of each thread per turn, as disclosed in Japanese Patent Publication No. 14605/1973. Specification and Unexamined Patent Publication 1973
- Although it is proposed in Specification No. 49119, the spinning speed that can withstand continuous operation is low, and the effect of reducing the difference in helical path length is also low, so it has not been implemented industrially. . (c) Purpose of the Invention The purpose of the present invention is to provide a continuous wet spinning method that eliminates the drawbacks of the paired-roll wet continuous spinning technology, namely, the non-uniformity of the physical properties of the obtained yarn and the low spinning speed. The present invention provides methods and apparatus. (d) Structure of the Invention The continuous wet spinning method according to the present invention uses two pairs of upper and lower rolls whose axes are tilted to each other, and runs the spun yarn on the pair of rolls in a helical shape. In the pair-roll continuous wet spinning method, in which the yarn is subjected to scouring, drying, etc., and then sent to subsequent processes such as winding, a plurality of yarns are run on a pair of rolls, and each yarn is The threads take the same running path while passing through the upper roll and reaching the lower roll, and each thread is separated by a separation roll and takes a different running path while passing through the lower roll and reaches the upper roll, and the threads are separated. It is characterized in that all yarns run upward or horizontally, and the helical pitch of each yarn on the upper and lower rolls is the same. Further, the continuous wet spinning device according to the present invention is a twin-roll type continuous wet spinning device, in which a rotating separation roll is provided on the side where the lower roll rotates facing upward,
The axis of this separation roll is parallel to the axis of the upper roll, and the lower end of this separation roll is located at or above the lower end of the lower roll. (e) Specific explanation of the structure of the invention As a method for processing a plurality of yarns in a twin-roll continuous wet spinning method, the inlet position of each yarn to the roll is separated and the yarns do not approach each other on the roll. One possible method is to make the helical pitch of the yarn larger and run the yarn alternately, but in this method, the roll length becomes longer by the number of yarns than when processing one yarn, and the operator's upper arm is unable to roll the yarn. Not only does it cause defects that cannot be reached above, but it also has the disadvantage that space productivity cannot be improved. In addition, if the entrance positions of multiple yarns to the roll are made approximately the same, the roll length is shortened, but due to the slight rolling of the yarn on the roll, the yarn is falsely twisted and adjacent multiple yarns are twisted together on a roll,
The original yarn cannot be separated at the roll exit. In the method of the present invention, all such drawbacks are improved. The method of the present invention will be explained in detail below. In the method of the present invention, a plurality of spun yarns are guided onto a pair of rolls and run in a helical manner through the outer periphery of the upper and lower pair of rolls, during which time the yarns are subjected to scouring, drying, etc. administer. Therefore, according to the method of the present invention, since the plurality of threads always travel in a helical manner through the upper and lower rolls, it is difficult to cause a difference in the length of the helical traveling path of each collected thread, and the obtained threads are There is no difference in physical properties between them. Furthermore, in the method of the present invention, a plurality of yarns follow the same travel path while reaching the upper roll from the upper roll, and each yarn is separated by a separation roll while reaching the upper roll via the lower roll, At the point where the threads are separated, all threads are forced to run upward or horizontally. In this way, a plurality of threads can be efficiently separated into the original threads at the exit of the pair of rolls, and the threads can be run stably. There is no problem with the method of the present invention, in which the yarns are separated by a separation roll while the yarns reach from the lower roll to the upper roll. In the method of separating the threads, thread breakage occurs frequently and stable running of the threads cannot be achieved. The reason for this is considered as follows, as a result of detailed observation of the running and separation state of the yarn. The coagulating solution used when spinning the yarn and the liquid used for cleaning and scouring the yarn usually wrap around and adhere to the yarn while the yarn runs on the rolls. On the other hand, when the yarns are separated or the yarn and the roll surface are separated, the attached liquid containing the yarn forms a thin film between the objects to be separated, and this thin film is created by surface tension. It acts to attract the object to be separated. For this reason, the threads in the process of being formed are flexible and may break due to the action of separating and attracting forces. This thin film seems to grow and break down due to gravity. When the tip of this thin film is pointing downward, it grows and becomes a long thin film, whereas when the tip is pointing upward, it is destroyed and becomes a short thin film. If the threads are separated while they are moving upward, a thin film will be formed up to a certain point above the point where the threads separate, but the threads will continue moving downwards. It is much shorter than the thin film formed between the yarns, and there is also much less yarn sway between the yarns or between the yarn and the roll surface at the separation point, which is thought to be due to the attractive force of the thin film. In carrying out the method of the present invention, the helical pitch of each yarn on the pair of rolls is kept the same. If the helical pitches are the same, the multiple yarns will travel as a bundle with evenly spaced helical pitches for most of their traveling path, resembling a single yarn bundle, and there will be slight deflection in the roll axis direction. However, this indicates an extremely stable yarn running condition. On the other hand, even if multiple yarns are placed close to each other at the roll entrance,
If the helical pitch of each thread on the lower roll is different,
The plurality of threads progress along the axial direction of the roll in most of their traveling paths, and the intervals between the threads also become uneven, resulting in an unstable running state. According to the method of the present invention described in detail above, when a plurality of yarns are run on a pair of rolls, even if the roll entrance positions of the yarns are brought close to each other, the yarns are constantly separated between the upper and lower rolls, and Since the false twist that occurs is destroyed, it is easily separated into the original yarn at the roll exit, and even when the yarn is separated between the upper and lower rolls, no cut yarn is generated, and a stable yarn running condition can be obtained. Of course, there is no need to enlarge the helical pitch of multiple yarns, so the same roll length as when spinning one yarn can be used. Therefore, space productivity is improved, and compared to when spinning a single yarn, the number of pairs of rolls can be the reciprocal of the number of multiple yarns on a pair of rolls, so equipment productivity can be greatly improved. improves. Furthermore, the processing speed of the yarn generally depends on the length of the yarn from the separation point to the separation roll and the angle between the yarn and the adjacent yarn at the point where the yarn is separated. This is known (see specification of JP-A-52-31116). According to the method of the present invention, compared to the drum-type continuous spinning method, the above-mentioned yarn length is shorter and the inter-yarn angle is larger, so both factors contribute to increasing the spinning speed. In fact, while the drum-type continuous spinning method had an upper limit of 60 m/min, the method of the present invention can increase the speed to about 300 m/min or more. The method of the present invention can be used for continuous wet spinning of viscose rayon, cuprammonium rayon, acrylonitrile polymer, wholly aromatic polyamide, and the like. One of the multiple yarns running on the anti-roll is
It is preferable to run on the two tangent lines of the upper and lower rolls without using a separation roll. This reduces the number of separation rolls to be provided, lowers equipment costs, and facilitates operation. Next, a twin-roll continuous wet spinning apparatus used to carry out the method of the present invention will be described. The twin-roll continuous wet spinning device according to the present invention includes:
As mentioned above, in a twin-roll type continuous wet spinning device that receives spun yarn and has two paired rolls, an upper and a lower one with their axes tilted to each other, and is equipped with processing equipment such as scouring and drying, A rotating separating roll is provided on the side where the lower roll rotates facing upward, and the axis of this separating roll is parallel to the upper roll axis, and the lower end of this separating roll is at a position equal to or higher than the lower end of the lower roll. This is a continuous wet spinning device installed in The function of the separation roll is to separate multiple threads traveling in a spiral pattern from the bottom roll to the top roll, and the horizontal position of the separation roll is determined by the distance between the bottom roll and the bottom roll. It must be the side that rotates upwards. The position of the separation roll is
When the lower roll is installed on the side that rotates downward,
If an attempt is made to wrap the yarn on the separation roll while it is traveling from the lower roll to the upper roll, it will be impossible to run the yarn intersecting with the yarn traveling from the upper roll to the lower roll. The axis of the separating roll must be parallel to the upper roll. This is because only when the axes of the upper roll and the separation roll are set parallel, the helical pitches of the plurality of threads running on the upper and lower rolls are equal.
The running condition of the thread becomes stable; otherwise,
Small fluctuations in the direction of the roll axis of each running thread interfere with each other, resonate with each other, grow into large fluctuations, and generate cut threads. The lower end of the separation roll must be located equal to or above the lower end of the lower roll. This is because when the lower end of the separation roll is provided below the lower end of the lower roll, a strong liquid film is formed between the lower roll and the yarn at the point where the yarn moves from the lower roll to the separation roll. This is because the threads are taken by the lower roll and become cut threads, which do not reach the separation roll. Although the separation roll has the position and horizontality of its axis as described above, it must also be able to rotate. If the separation roll does not rotate, the droplets accompanying the yarn will be squeezed by the separation roll and attached to the separation roll surface, and the size of these droplets will change over time, and the droplets will always begin to move on the separation roll. . At this time, depending on the behavior of the droplets, the running yarn may wrap around the separation roll or move in the axial direction of the separation roll and become entangled with an adjacent running yarn whose helical pitch is shifted by one phase. It will be cut. In the past, several proposals have been made to install non-rotating separation bars instead of rotating separation rolls, but these devices have low practicality for the reasons mentioned above, especially in the spinning speed range of over 70 m/min. It cannot be used. In the device of the present invention, the number of separation rolls provided is 1.
or more. If one separation roll is provided, two yarns can be processed. If you want to increase the spinning speed and stabilize the running of the yarn, it is desirable that the position of the separation roll is lower. It is desirable to provide a separation roll below the middle of the lower roll. The diameter of the separation roll is preferably 20 m/mφ to 200 m/mφ in consideration of both prevention of yarn winding onto the separation roll and improvement of space productivity. Although the cross-sectional shape of the separation roll may be circular, it is preferable that the cross-section is uneven in order to prevent the yarn from being removed by the separation roll. Furthermore, the separation roll must rotate in accordance with the progress of the yarn, but rather than having the separation roll shaft supported by metal or bearings and rotated by the running yarn, the separation roll shaft is actively driven by an electric motor, etc. It is preferable to give a circumferential velocity that is constant with the running yarn. This is because if the separation roll is not connected to the drive device when the yarn starts running, the rotation speed of the separation roll will reach from zero to a rotation corresponding to the circumferential speed corresponding to the yarn running speed, but often, This is because the rotation speed may pass through the mechanical resonance rotation speed region of the separation roll, making it difficult to start the operation of the apparatus. Further, it is preferable that the separation roll is provided at a position where the outer periphery of the separation roll is 5 mm or more away from the yarn that does not directly contact the separation roll. If the yarn is less than 5 mm, it does not come into direct contact with the roll, but during running, the yarn makes small fluctuations, comes into contact with the separation roll, and is wound around the separation roll. Hereinafter, the present invention will be specifically described with reference to the accompanying drawings. FIG. 1 is a diagram showing a conventional twin-roll type continuous spinning apparatus and method. This spinning device is mainly composed of an upper roll 1 and a lower roll 2 whose axes are tilted to each other, and here a scouring liquid supply device 5 and drying devices 7 and 8 are added. The upper roll 1 and the lower roll 2 rotate respectively, and the rotation direction is indicated by the arrow 3.
Indicated by arrow 4. Upper roll 1, lower roll 2
A spinning device is provided in the previous process, and this spinning device includes a stock solution supply pipe 10, a spinning nozzle 11,
and a thread path 12 are provided. In the conventional apparatus, one spinning nozzle 11 was provided for a pair of upper roll 1 and lower roll 2, as shown in FIG. Therefore, one thread 13 runs on the upper roll 1 and the lower roll 2. On the other hand, an example of a twin-roll type continuous spinning device according to the present invention is shown in FIG. This device is an example in which one separation roll 14 is provided for a pair of upper rolls 1 and lower rolls 2. This continuous wet spinning apparatus consists of an upper roll 1, a lower roll and a separation roll 14 whose axes are tilted to each other, and here a scouring liquid supply device 5 and drying devices 7 and 8 are added. In FIG. 2, the upper roll 1 and the lower roll 2 are provided with their axes inclined to each other, and the separation roll 14
is provided between the upper roll 1 and the lower roll 2. Upper roll 1, lower roll 2, separation roll 14
The directions of rotation are indicated by arrows 3, 4, and 15, respectively. In Fig. 2, for the upper roll 1 and lower roll 2,
Although an example is shown in which one separation roll 14 is provided,
A plurality of separation rolls can be provided. FIG. 3 is a cross-sectional view cut perpendicular to the roll axis, showing several examples of the roll-pair portion of the roll-pair continuous wet spinning device. In Figure 3, I, B, C,
D, H, H, and T show embodiments of the apparatus of the present invention, and FIG. 3 shows a comparative example. Although FIG. 2 shows an example in which one separation roll is provided, FIGS. In the device of the present invention, the horizontal position where the lower roll 2 is rotated upward must be the side where the lower roll 2 rotates upward. In the comparative example shown in FIG. A rotation direction arrow 4 is provided on the downwardly facing side. When the separation roll 14, separation roll 14', or separation roll 14'' is provided on the side where the rotation direction arrow of the lower roll 2 points upward, the yarn 13 and the yarn 1
3' or yarn 13'', the running of yarn 13 is stable, but in the comparative example, threads are frequently cut.The vertical position of the separation roll is such that the lower end of the separation roll is equal to the lower end of the lower roll. , or above the bottom end of the bottom roll.Third
In figures A, B, C, D, H, H, and G, the lower end 16, lower end 16', and lower end 16'' of the separating roll are all provided at the same level as the lower end 17 of the lower roll or above it. As a comparative example, in the device shown in FIG. 13'
driving condition cannot be obtained. FIG. 4 is a sectional view of the separating rolls of the twin-roll continuous wet spinning apparatus according to the present invention. Although the cross-sectional shape of the separation roll may be circular as shown in FIG. 4A, it is preferable that the outer periphery is uneven as shown in FIG. 4B, C, and D. Next, a conventional method and a method of the present invention will be explained. In the conventional twin-roll type continuous wet spinning shown in FIG. 1, the spun yarn 13 passes through an upper roll 1 and a lower roll 2, travels in a helical shape, and is processed. Only one thread runs between the upper roll 1 and the lower roll 2. In the pair-roll continuous wet spinning of the present invention shown in FIG. 2, the number of threads running on the upper roll 1 and the lower roll 2 is two. Spun yarn 13, yarn 1
3' runs in a spiral pattern between the upper roll 1 and the lower roll 2, takes approximately the same traveling path while traveling from the upper roll 1 to the lower roll 2, and travels from the lower roll 2 to the upper roll 1. During this time, the separation rolls 14 cause the vehicles to travel along different travel paths. Therefore, at the roll exit 18 where the yarn has finished running on the upper roll 1 and the lower roll 2, the two yarns can be sent out separately. In the continuous wet spinning method of the present invention, the helical pitches of the plurality of threads running on the upper and lower rolls must be equal. In Fig. 2, by making the helical pitches 19 and 19' of the threads 13 and 13' running on the upper roll 1 and the lower roll 2 equal, the threads 13 and 13' and the lower roll are The running interval is always constant, and stable running conditions can be maintained. Although FIG. 2 shows an example in which the number of yarns running on the upper and lower rolls is two, more yarns may be running. Fig. 3F shows an example in which two separation rolls 14, 14' are provided and three threads, namely thread 13, thread 13', and thread 13'' are run. , three separation rolls are provided,
This is an example in which four yarns are run. In the method of the present invention, in terms of yarn separation,
All threads must be run either upwards or horizontally. In other words, Figure 3 A, B, H, D, H,
As shown in F and G, all the threads run upward or horizontally at the points 20, 20', and 20'' where the threads are separated. At the point of separation 20, all or some of the threads run downwards.
The thread becomes a cutting thread. Also, among the plurality of threads running on the upper and lower rolls, it is better to run one thread on a common tangent to the upper and lower rolls. This is an example in which the thread is not run, and two separation rolls are provided, and only two threads are run, but Fig. 3 is an example in which the thread is run on a common tangent to the upper and lower rolls. There are two separation rolls and three threads are run. F has higher equipment productivity. (f) Examples Hereinafter, the present invention will be specifically explained using examples. Example 1 A viscose rayon yarn was spun using the twin-roll continuous wet spinning method and apparatus of the present invention. The apparatus used corresponded to that shown in FIG. 2, and the installation position of the separation roll was as shown in FIG. 3. The diameter of the upper and lower rolls was 130 mm, and two separation rolls with circular cross-sections were used, each having a diameter of 50 mm. The installation position of the separation roll is
The shaft was placed between the upper and lower rolls, separated by 40 mm from the common tangent of the upper and lower rolls, and parallel to the upper roll axis, and rotated at the same surface speed as the upper and lower rolls. The helix pitch is 8 mm, and the running speed is 180 with 75 denier/26 filament yarn.
Three rolls are spun at a rate of m/min, and the rolls enter the rolls at almost the same position, and run on the opposite roll. From the upper roll to the lower roll, the run path is almost the same, and while running from the lower roll to the upper roll, The yarn was run in the condition shown in FIG. While the yarn is running on the upper and lower rolls, the yarn is washed with water and dried on a part of the roll, and after the yarn comes out of the roll, it is wound up with a winder. . Table 1 shows the properties of the obtained yarn and the cutting rate during spinning.

[Table] As shown in Table 1, the three yarns obtained showed uniform quality and the running condition of the yarns was also good. Example 2 A cuprammonium rayon yarn was spun using the twin-roll continuous wet spinning method and apparatus of the present invention. The apparatus used corresponds to that shown in FIG. 2, and the spinning apparatus used was of a falling type. The mounting position of the separation roll was as shown in Fig. 3D. The diameter of the upper and lower rolls was 130 mm, and the separation roll had a circular cross-sectional shape and a diameter of 50 mm. The separation roll is installed 45 mm laterally from the common tangent line of the upper and lower rolls, and the lower end of the separation roll is equal to the lower end of the lower roll on the take-up side, and is installed parallel to the upper roll axis. rotated at the same surface speed. Rasenpichi is 8
Two yarns of 60 denier/46 filaments each were spun at a running speed of 350 m/min, and the two yarns were run onto a pair of rolls with almost the same entry position into the roll, and from the upper roll. The running path was approximately the same up to the lower roll, and the yarn was run in the state shown in FIG. 3D while running from the lower roll to the upper roll. While the yarn travels through the upper and lower rolls, a portion of the roll is treated with a 10% sulfuric acid solution, washed with water, and dried. After the yarn comes out of the roll, it is passed through a winder. I wound up the yarn. Table 2 shows the properties of the obtained yarn and the cutting rate during spinning.

[Table] As shown in Table 2, stable running conditions were confirmed up to a running speed of 350 m/min.
No difference in the quality of the obtained yarns was observed. Examples 3 to 12, Comparative Examples 1 to 5 Viscose rayon yarn was spun using a twin-roll continuous wet spinning device to confirm the effects of the method and device of the present invention. The apparatus used corresponds to that shown in FIG. In order to confirm the effects of the method and apparatus of the present invention, the cross-sectional shape of the separation roll was determined in Examples 3 to 6, the diameter of the separation roll was determined in Examples 3 and 7 and Comparative Example 1, and the diameter of the separation roll in Examples 3 and 8 to 11 was determined. In Comparative Examples 2, 3, and 4, the mounting position of the separation roll was tested, and in Examples 3 and 12, and Comparative Example 5, the distance between the outer periphery of the separation roll and the yarn that was not in direct contact with the separation roll was tested. The diameter of the upper and lower rolls was 130 mm, and the cross-sectional shape of the separating roll used was one of the shapes A, B, C, and D in FIG. 4, and is shown in the column of shape of the separating roll in Table 3. Regarding the diameter of the separation roll, those having a circular cross-sectional shape are shown in the column of separation roll diameter in Table 3. Further, the mounting position of the separation roll was as shown in FIG. 3, and is shown in the column of separation roll position in Table 3. Further, the distance between the outer periphery of the separation roll and the yarn not in direct contact with the separation roll is shown in the column of separation roll distance in Table 3. In addition, the axis of the separation roll was parallel to the upper roll axis in Examples 3 to 12 and Comparative Examples 1, 4, and 5, and parallel to the lower roll in Comparative Examples 2 and 3. The helical pitch of the threads of the traveling double threads was made approximately the same. Further, the separation roll was rotated at the same surface speed as the upper and lower rolls. The helical pitch was 8 mm, and yarns of 120 denier/40 filaments were spun at a running speed of 160 m/min, and the positions on the rolls were almost the same. The thread is on top,
While running between the lower rolls, the yarn is separated and run as shown in the running state of the yarn in Figure 3, which corresponds to the column of separation roll position in Table 3, and between the upper and lower rolls. While the yarn is running, the yarn is subjected to water washing treatment,
After the drying process was performed and the yarn came out of the roll, the yarn was wound up with a winder. Table 3 shows the cutting rate during spinning.

[Table] The effect of the present invention is clear from the cut rate results in Table 3, and it can be seen that multiple threads can be efficiently spun by using the method and apparatus of the present invention in twin-roll wet continuous spinning. .

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a conventional twin-roll type continuous spinning device and method, and FIG. 2 is a diagram showing a continuous wet spinning device and method of the present invention. FIG. 3 is a cross-sectional view that can be cut perpendicular to the roll axis, showing several examples of paired rolls for paired-roll continuous wet spinning. are embodiments of the present invention, and 1, 2 and 3 are comparative examples). Fourth
The figure is a sectional view of the separation roll of the continuous spinning device of the present invention. 1... Upper roll of the counter roll, 2... Lower roll of the counter roll, 3... Arrow indicating the rotation direction of the upper roll, 4... Arrow indicating the rotation direction of the lower roll, 5...
...Scouring liquid supply nozzle, 6...Scouring area, 7 and 8...
... Drying device, 10 ... Stock solution supply pipe, 11 ... Spinning nozzle, 12 ... Yarn path, 13 and 13', 13'',
13... Yarn, 14 and 14', 14"... Separation roll, 15... Rotation direction of separation roll, 16, 16', 16"... Lower end of separation roll, 17... Lower end of lower roll, 18 ...Roll exit, 19 and 1
9'... Yarn spiral pitch, 20 and 20', 2
0″...Point where the yarn is separated.

Claims (1)

[Claims] 1. In a continuous wet spinning method using a pair of rolls consisting of an upper roll and a lower roll, a plurality of yarns are run on the pair of rolls, and while each yarn is traveling from the upper roll to the lower roll, The same traveling path is taken, and each yarn is separated by a separating roll and takes a different traveling path from the lower roll to the upper roll, and at the point where the yarn is separated, all the yarns are directed upward or horizontally. A continuous wet spinning method characterized by making the helical pitch of each thread running on upper and lower rolls equal. 2. Claim 1 of continuous wet spinning of viscose rayon, cuprammonium rayon, acrylonitrile polymer or wholly aromatic polyamide
Continuous wet spinning method described in section. 3 One of the multiple yarns is attached to two of the upper and lower rolls.
The continuous wet spinning method according to claim 1, wherein the spinning process runs along a common tangent line of the book. 4 In a twin-roll type continuous wet spinning device, a rotating separation roll is provided on the side where the lower roll rotates upward, the axis of this separation roll is parallel to the upper roll axis, and the lower end of this separation roll is parallel to the lower end of the lower roll. A continuous wet spinning device characterized in that it is located at or above the same level. 5. The continuous wet spinning apparatus according to claim 4, which is provided with one or more separation rolls. 6. The continuous wet spinning apparatus according to claim 4, wherein the separation roll is provided below the midpoint between the upper and lower rolls. 7. The continuous wet spinning apparatus according to claim 4, wherein the separation roll has a diameter in the range of 20 mmφ to 200 mmφ. 8. The continuous wet spinning apparatus according to claim 4, wherein the separation roll has an uneven cross-sectional outer periphery. 9. The continuous wet spinning apparatus according to claim 4, wherein the outer periphery of the separation roll is provided at a position 5 mm or more away from the yarn that does not directly contact the separation roll. 10. The continuous wet spinning apparatus according to claim 4, wherein the separation roll is actively driven.