Spinning production facility

Abstract

To provide a spinning production facility that suppresses a height dimension of the spinning production facility even if the number of spinning packs increases in the spinning production facility provided with a spinning apparatus including a plurality of spinning packs.SOLUTION: A spinning production facility 1 according to the present invention comprises: a plurality of spinning packs 22 in which molten polymer is stored inside and yarns Y are spun downward from a mouthpiece 24 provided at each lower end; a spinning beam 21 into which the plurality of spinning packs 22 are inserted; a plurality of first guides 6 which are arranged below the plurality of spinning packs 22 and guide a plurality of yarns Y individually; and a second guide 7 which is arranged below the plurality of first guides 6 and converges the plurality of yarns Y guided by the plurality of first guides 6. The plurality of spinning packs 22 are arranged along a first arc 51 and a second arc 52 inside the first arc 51 in plan view.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a spinning production facility that includes a spinning device having a plurality of spinning packs and spins a plurality of yarns downward from a spinneret provided at the lower end of the spinning pack. [Background technology]

[0002] Conventionally, spinning devices for spinning synthetic fiber yarns have been known. A typical spinning device includes multiple spinning packs each having a nozzle at the lower end. Molten polymer is supplied to the spinning packs, and the molten polymer is spun downward from multiple nozzles of the nozzle to form a yarn consisting of multiple filaments.

[0003] For example, as shown in Patent Document 1, a spinning apparatus has been developed in which a plurality of spinning packs are arranged in two rows in a staggered manner in a plan view. Below the plurality of spinning packs, a plurality of cooling cylinders are arranged in a staggered manner to cool the plurality of spun yarns with cooling air, and below the cooling cylinders, oil supply guides are arranged in a staggered manner to apply an oil agent to the cooled yarns. Each of the yarns to which the oil agent has been applied is individually guided by a plurality of first guides arranged below the oil supply guide, and converges at a predetermined interval in a second guide (comb guide) arranged directly below approximately the center of the plurality of first guides in the horizontal direction, and runs while being aligned at equal intervals along the horizontal direction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2015-140498 A Summary of the Invention [Problem to be solved by the invention]

[0005] Here, if the angle of the yarn running between the first guide and the second guide with respect to the vertical direction (hereinafter referred to as the yarn angle, see FIG. 2) is large, the friction between the yarn and the first guide increases, which may degrade the quality of the yarn. For this reason, it is necessary to avoid a large yarn angle.

[0006] In recent years, there has been an increasing need for a spinning device equipped with more spinning packs in order to spin more yarns at the same time. However, in a spinning device in which spinning packs are arranged in two rows in a staggered manner as in Patent Document 1, if the number of spinning packs is increased, the spinning packs and the first guide arranged below the spinning packs will be arranged to extend along the arrangement direction. In this case, the horizontal distance between the first guide and the second guide at both ends that converge the yarn to the second guide will be longer by the amount of the increase in the number in the arrangement direction, and the yarn angle will also be larger. In this case, in order to avoid the yarn angle from becoming larger, it is necessary to increase the vertical distance between the first guide and the second guide, which will increase the height dimension of the entire yarn production facility including the spinning device.

[0007] An object of the present invention is to reduce the height dimension of a spinning production facility equipped with a spinning device having a plurality of spinning packs, even if the number of spinning packs is increased. [Means for solving the problem]

[0008] The spinning production equipment according to a first aspect of the present invention comprises a plurality of spinning packs in which molten polymer is stored and which spin yarns downward from nozzles provided at the lower ends of the respective spinning packs; a spinning beam into which the plurality of spinning packs are inserted; a plurality of first guides which are disposed below the plurality of spinning packs and which individually guide the plurality of yarns; and a second guide which is disposed below the plurality of first guides and which converges the plurality of yarns guided by the plurality of first guides, wherein the plurality of spinning packs include a first row which is disposed along a curve in a plan view, and a second row which is disposed along the first row.

[0009] In addition, a spinning production equipment according to a second invention includes a plurality of spinning packs in which molten polymer is stored and which spin yarns downward from nozzles provided at the lower ends of the respective spinning packs, a spinning beam into which the plurality of spinning packs are inserted, a plurality of first guides which are disposed below the plurality of spinning packs and which individually guide the plurality of yarns, and a second guide which is disposed below the plurality of first guides and which converges the plurality of yarns guided by the plurality of first guides, and is characterized in that the plurality of spinning packs include a first row which is disposed along a straight line which is curved in a plan view, and a second row which is disposed along the first row.

[0010] In order to ensure the quality of the yarn, it is necessary to suppress an increase in the angle of the yarn traveling between the first guide and the second guide with respect to the vertical direction (yarn angle). In particular, the horizontal distance between the first guide and the second guide arranged at both ends is the longest. For this reason, it is necessary to increase the vertical distance between the first guide and the second guide to a sufficient extent to suppress an increase in the yarn angle between the first guide and the second guide at both ends. According to the first and second inventions, the multiple spinning packs include a first row arranged along a straight line that is curved or bent in a plan view, and a second row along the first row. For this reason, when the number of spinning packs is increased, it is possible to suppress an increase in the horizontal distance between the first guide and the second guide at both ends compared to a case where the spinning packs are arranged along one direction such as a staggered arrangement. As a result, it is possible to shorten the vertical distance between the first guide and the second guide required to suppress an increase in the yarn angle, and it is possible to suppress the height dimension of the spinning production equipment even if the number of spinning packs is increased.

[0011] The spinning production equipment according to the third invention is characterized in that, in the first or second invention, the outer edge of the spinning beam is formed along the positions where the multiple spinning packs are arranged.

[0012] According to the present invention, the portion of the spinning beam where the spinning pack is not disposed can be reduced, and space saving can be realized for the entire spinning production facility.

[0013] The spinning production equipment according to a fourth aspect of the present invention is the equipment according to the first aspect of the present invention, characterized in that all of the plurality of spinning packs are arranged along a circular arc.

[0014] The spinning device is provided with a plurality of polymer pipes that supply molten polymer from a polymer tank to a plurality of spin packs. The polymer in the polymer pipes is heated. In order to make the quality of each yarn spun from the plurality of spinnerets uniform, it is necessary to make the state of the molten polymer in each spin pack uniform, and for this purpose, it is required to uniformly heat the polymer supplied to each spin pack. According to the present invention, the distance from the center of the arc to each row of spin packs arranged along the arc is uniform. Therefore, it is easy to make the length of the polymer pipes connected to the spin packs arranged in each row uniform, and there is no need to make the polymer pipes have a complex flow path in order to make the length uniform. This makes it possible to easily realize a configuration in which the polymer passing through the polymer pipes is uniformly heated.

[0015] In addition, each of the yarns spun from the multiple spinning packs needs to be threaded on the first guide. In the present invention, the first guides arranged below the spinning packs are arranged in multiple rows along an arc, similar to the spinning packs. Therefore, an operator can move along the first guides arranged along the arc and thread the yarn on the first guide arranged inside the arc through the gap between the first guides arranged outside the arc. This allows the yarn to be easily threaded on the first guides without being hindered by other yarns spun below, improving operability.

[0016] The spinning production equipment of the fifth invention is characterized in that, in the fourth invention, the spinning pack has an unplaced portion that is not positioned in a part of the circumferential direction when viewed in a plane, and the unplaced portion extends from the outer edge side of the spinning beam toward the center side.

[0017] In general, in a spinning production facility, a cooling cylinder for cooling the yarn with cooling air is arranged below the spinning pack, and an oil supply guide for applying an oil agent to the cooled yarn is arranged below the cooling cylinder. A pipe for supplying cooling air is connected to a cooling device that houses a plurality of cooling cylinders, and a pipe for supplying an oil agent is connected to the oil supply guide. These pipes may be cut or clogged, and replacement of the pipes may be required while the yarn is being spun by the spinning pack. According to the present invention, a space from which no yarn is spun is generated below the non-placed portion where no spinning pack is arranged. Therefore, an operator can easily replace the pipes even when the yarn is being spun by accessing the cooling device and the oil supply guide from the space below the non-placed portion of the spinning pack.

[0018] The spinning production equipment of the sixth invention is characterized in that, in the first to fifth inventions, the angle of the multiple yarns running between the first guide and the second guide with respect to the vertical direction is 9 degrees or less.

[0019] By arranging the first guide and the second guide so that the yarn angle is 9 degrees or less, the quality of the yarn can be ensured more reliably.

[0020] The spinning production equipment according to a seventh aspect of the present invention is characterized in that, in the first to sixth aspects of the present invention, the plurality of spinning packs include the first row and the second row.

[0021] According to the present invention, the yarn can be threaded onto the first guide more easily than in the case where three or more rows of spin packs are provided. Effect of the Invention

[0022] According to the present invention, in a spinning production facility including a spinning device having a plurality of spinning packs, even if the number of spinning packs increases, the height dimension of the spinning production facility can be reduced. [Brief description of the drawings]

[0023] [Figure 1] FIG. 2 is a side view of the spinning production facility according to the embodiment. [Diagram 2] FIG. 2 is a partial cross-sectional view of a spinning device and a cooling device according to the present embodiment. [Diagram 3] FIG. 4 is a perspective view of a second guide according to the embodiment. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] FIG. 2 is a perspective view of a spinning device, a cooling device, and an accommodation space according to the present embodiment. [Figure 6] 1A and 1B are diagrams showing the arrangement of spinning packs in modified examples, in which (a) shows a spinning pack arranged along a U-shape, (b) shows a spinning pack arranged along a U-shape, and (c) shows a spinning pack arranged along a V-shape. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] (Overall configuration of spinning production equipment 1) Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a side view of a spinning production facility 1 according to this embodiment. Fig. 2 is a partial cross-sectional view of a spinning device 2 and a cooling device 4. In the following, the front-rear, left-right, top-bottom directions in Fig. 1 are defined as the front-rear, left-right, top-bottom directions of the spinning production facility 1.

[0025] As shown in Fig. 1, the spinning production facility 1 includes a spinning device 2 and a spinning take-up device 3. The spinning device 2 is a device that spins out molten polymer downward as a yarn Y, and as shown in Fig. 2, includes a spinning beam 21 and a plurality of spinning packs 22 attached to a storage section formed below the spinning beam 21. The spinning take-up device 3 is a device that takes up the yarn Y spun from the spinning device 2, and includes a cooling device 4, an oil supply guide 5, a first guide 6, a second guide 7, godet rollers 8 and 9, and a spinning take-up device 10.

[0026] The cooling device 4 is a device that cools the yarn Y spun from the spinning pack 22 with cooling air. As shown in FIG. 2, the cooling device 4 is disposed below the spinning beam 21, and includes a plurality of cooling cylinders 41 and a cooling air supply box 42 in which the plurality of cooling cylinders 41 are accommodated. The plurality of cooling cylinders 41 are disposed directly below the plurality of spinning packs 22. The cooling cylinder 41 is a member having a substantially cylindrical shape extending in the vertical direction, and a yarn running space 43 with both ends in the vertical direction open is formed inside. In the portion of the cooling cylinder 41 that forms the side wall of the yarn running space 43, the cooling air flowing from the internal space 44 of the cooling air supply box 42 into each yarn running space 43 is rectified. In addition, cooling air is sent to each internal space 44 of the cooling air supply box 42 from a duct (not shown) through a cooling air pipe (not shown). The cooling air pipe is disposed on the back side of the cooling device 4 in FIG. 2.

[0027] The oil supply guide 5 applies an oil to the multiple yarns Y spun downward from the multiple spin packs 22. As shown in FIG. 2, the multiple oil supply guides 5 are disposed directly below the multiple cooling cylinders 41. The oil is supplied to the oil supply guide 5 via an oil supply pipe (not shown). After the oil is applied to the yarn Y made of multiple filaments by the oil supply guide 5, the yarn Y is entangled or the like to become a single multifilament yarn Y.

[0028] The first guide 6 defines a yarn path so that the yarn Y is pressed against the oil supply surface of the oil supply guide 5 in an appropriate manner. The first guides 6 are arranged directly below the oil supply guides 5 as shown in FIG. 2. The second guide 7 is a comb-shaped guide in which multiple yarn running sections 71 for guiding the multiple yarns Y are formed at equal intervals along the left-right direction as shown in FIG. 3. The yarn running section 71 of the second guide 7 is open at both ends in the up-down direction and either the front or rear. One second guide 7 is arranged almost directly below the center of the first guides 6 in the left-right direction and the front-rear direction. The multiple yarns Y guided by the first guides 6 are guided by the multiple yarn running sections 71 in the second guide 7 and run downward while being arranged at equal intervals in the left-right direction.

[0029] The operation of threading the yarn Y around the oil supply guide 5, the first guide 6, and the second guide 7 may be performed by an operator or automatically.

[0030] 1, the godet rollers 8 and 9 are disposed downstream of the second guide 7 in the yarn running direction, and are rotated by a motor (not shown). A plurality of yarns Y spun from the spinning device 2 are wound around the godet rollers 8 and 9 in this order via the yarn running space 43 of the cooling device 4, the oil supply guide 5, the first guide 6, and the second guide 7, and are sent to the spinning winding device 10 by the godet rollers 8 and 9.

[0031] The take-up winding apparatus 10 winds a plurality of yarns Y onto a plurality of bobbins B held by a bobbin holder 11 to form a plurality of packages P. The take-up winding apparatus 10 is provided with two bobbin holders 11. The bobbin holder 11 is a shaft member extending in the front-rear direction, and its rear end is cantilevered by a turret 13 provided on a machine base 12. The bobbin holder 11 can hold a plurality of bobbins B lined up in the axial direction. For example, when eight yarns Y are sent from the spinning apparatus 2, the eight yarns Y are wound onto eight bobbins B.

[0032] The take-up apparatus 10 also has a support frame 14 extending in the front-rear direction substantially parallel to the bobbin holder 11. The rear end of the support frame 14 is cantilevered by the machine base 12. A guide support 15 extending in the front-rear direction is provided on the upper part of the support frame 14. The guide support 15 is provided with a plurality of support guides 16 aligned in the front-rear direction corresponding to the plurality of bobbins B held by the bobbin holder 11. The support frame 14 is also provided with a plurality of traverse devices 17 aligned in the front-rear direction corresponding to the plurality of bobbins B held by the bobbin holder 11. Each traverse device 17 traverses the yarn Y in the front-rear direction around the corresponding support guide 16.

[0033] The take-up winding apparatus 10 has a contact roller 18 rotatably supported by a support frame 14. The contact roller 18 is provided below the support frame 14. The operation of each part of the take-up winding apparatus 10 is controlled by a control device (not shown). The take-up winding apparatus 10 starts winding the multiple yarns Y traversed by the multiple traverse devices 17 onto multiple new bobbins B attached to the upper one of the two bobbin holders 11. During the winding of the yarns Y, the contact roller 18 is raised and lowered and / or the turret 13 is rotated as appropriate to form multiple packages P while responding to an increase in the diameter of the package P.

[0034] (Spinning device 2) As described above, the spinning device 2 includes the spinning beam 21 and a plurality of spinning packs 22, and further includes a polymer tank 23 in which a polymer, which is a material of the yarn Y, is stored, as shown in FIG. 2. The spinning beam 21 can heat the spinning pack 22, the polymer tank 23, the polymer pipe 25 connecting the spinning pack 22 and the polymer tank 23, and the like, which are arranged inside. The spinning pack 22 stores a molten polymer inside, and a die 24 is formed at the lower end. The molten polymer stored inside the spinning pack 22 is spun downward as a yarn Y consisting of a plurality of filaments from a plurality of through holes (not shown) formed in the die 24. The polymer tank 23 is a portion that stores a polymer inside, and the polymer in the polymer tank 23 is sent to the plurality of spinning packs 22 via the plurality of polymer pipes 25. When the polymer is fed from the polymer tank 23 to the spin pack 22, the polymer inside the polymer tank 23 and the polymer piping 25 is heated to a predetermined temperature by the spin beam 21 and becomes a molten polymer.

[0035] In a conventional spinning device, for example, as in the above-mentioned Patent Document 1, spinning packs are arranged in two staggered rows around a spinning beam that is rectangular in plan view. In such a spinning device, when the number of spinning packs 22 is increased, the spinning packs 22 are arranged to extend in the arrangement direction, i.e., the left-right direction in FIG. 2. In this case, the first guide 6 arranged directly below the spinning packs 22 is also arranged to extend in the left-right direction. This increases the horizontal distance between the first guide 6 and the second guide 7 arranged at both ends.

[0036] Here, in the spinning take-up device 3, the first guides 6 and the second guides 7 are arranged so that the yarn angle θ, which is the angle of the yarn Y traveling between each of the first guides 6 and the yarn running portion 71 of the second guide 7 with respect to the vertical direction, is 9 degrees or less. The yarn angle θ is determined by the vertical distance and the horizontal distance between the first guide 6 and the second guide 7, and by setting the yarn angle θ to 9 degrees or less, it is possible to suppress the quality of the yarn Y from being deteriorated due to friction between the yarn Y and the first guide 6. As in the case of a spinning production facility having a conventional spinning device, when the horizontal distance between the first guide 6 and the second guide 7 becomes longer due to an increase in the number of spinning packs 22, it is necessary to increase the vertical distance between the first guide and the second guide in order to set θ to 9 degrees or less. In this case, there is a problem that the height dimension of the yarn production facility 1 as a whole becomes large.

[0037] Therefore, in the spinning device 2 according to this embodiment, as shown in FIG. 4, the spinning beam 21 is circular in plan view, and the spinning packs 22 are arranged in two rows along the first arc 51 and the second arc 52 in plan view. The outer edge of the spinning beam 21 is formed to follow the spinning packs 22 arranged along the first arc 51. The center of the circular spinning beam 21 is the same as the arc centers of the first arc 51 and the second arc 52. Therefore, in the spinning device 2 according to this embodiment, when the number of spinning packs 22 is increased, the arc radii of the first arc 51 and the second arc 52 become larger. That is, since the spinning packs 22 are arranged to extend in both the front-rear direction and the left-right direction, the extension in one direction can be mitigated compared to the case where the spinning packs 22 are arranged to extend only in the left-right direction. This makes it possible to prevent the horizontal distance between the first guide 6 and the second guide 7 arranged at both ends from becoming long, and to prevent the vertical distance between the first guide and the second guide, which is necessary to set the yarn angle θ to 9 degrees or less, from becoming long. Therefore, it is possible to reduce the height dimension of the yarn production equipment 1 as a whole. Note that the "first row" described in the claims refers to the spinning packs 22 arranged along the first circular arc 51, and the "second row" refers to the spinning packs 22 arranged along the second circular arc 52.

[0038] In addition, the cooling cylinders 41, the oil supply guides 5, and the first guides 6 arranged directly below the spinning packs 22 are also arranged in two rows along the first arc 51 and the second arc 52 in a plan view. The cooling device 4 including the cooling cylinders 41 and the cooling air supply box 42 is circular in a plan view, similar to the spinning beam 21.

[0039] In addition, as shown in FIG. 5, the spinning beam 21 has an empty space (empty portion) 100a in which the spinning pack 22 is not arranged in a part of the circumferential direction in a plan view. The empty space 100a extends in the front-rear direction from the outer edge side of the spinning beam 21 toward the center side, and penetrates the spinning beam 21 from the upper end to the lower end. That is, as shown in FIG. 4, the spinning beam 21 has a circular shape in a plan view with a part from the outer edge to the center hollowed out. In addition, a lower space 100b in which the cooling cylinder 41, the oil supply guide 5, and the first guide 6 are not arranged is formed directly below the empty space 100a. Since the spinning pack 22 is not arranged in the empty space 100a, the yarn Y is not spun from the spinning pack 22 into the lower space 100b. The empty space 100a and the lower space 100b are collectively referred to as the accommodation space 100. A wall 101 is formed so as to surround the left and right directions and the front of the accommodation space 100, and the rear of the accommodation space 100 is open. An opening 102 is formed at a position on the front side of the lower space 100b side of the wall 101. Note that the polymer tank 23, the polymer pipe 25, and the cooling cylinder 41 are omitted in Fig. 5. Also, only one spinning pack 22 is shown, and the other spinning packs 22 are omitted.

[0040] The above-mentioned cooling air piping and oil agent piping (both not shown) are accommodated in the accommodation space 100. Each of the pipings passes through an opening 102 and is connected to the cooling air supply box 42 of the cooling device 4 and each of the oil supply guides 5, both of which are located outside the accommodation space 100. Although not shown in the figure, the multiple oil supply guides 5 and the multiple first guides 6 are disposed at positions directly below the respective spinning packs 22 from the wall 101 of the accommodation space 100 via support members (not shown).

[0041] (effect) The spinning production equipment 1 of this embodiment includes a plurality of spinning packs 22, a spinning beam 21 into which the spinning packs 22 are inserted, a plurality of first guides 6 arranged directly below the spinning packs 22, and a second guide 7 arranged below the plurality of first guides 6. The plurality of spinning packs 22 are arranged along a first arc 51 and a second arc 52 inside the first arc 51. In order to ensure the quality of the yarn Y, it is necessary to suppress an increase in the yarn angle θ of the yarn Y traveling between the first guide 6 and the second guide 7. For example, as a method of suppressing an increase in the yarn angle θ, it is possible to increase the vertical distance between the first guide 6 and the second guide 7, but in this case, the height dimension of the spinning production equipment 1 will be increased. According to this embodiment, the plurality of spinning packs 22 are arranged along the first arc 51 and the second arc 52. Therefore, when the number of spinning packs 22 is increased, the horizontal distance between the first guide 6 disposed directly below the spinning packs 22 and the second guide 7 disposed below the first guide 6 can be prevented from increasing, compared to when the spinning packs 22 are disposed in one direction. This makes it possible to shorten the vertical distance between the first guide 6 and the second guide 7 required to prevent an increase in the yarn angle θ, and therefore makes it possible to suppress the height dimension of the spinning production equipment 1 even if the number of spinning packs 22 is increased.

[0042] In the spinning production equipment 1 of this embodiment, the spinning beam 21 is circular, and the outer edge of the spinning beam 21 is formed to follow the spinning pack 22 arranged along the first circular arc 51. This makes it possible to reduce the portion of the spinning beam 21 where the spinning pack 22 is not arranged, thereby realizing space saving of the spinning device 2 and, ultimately, space saving of the entire spinning production equipment 1.

[0043] According to this embodiment, the distance from the center of the arc to the spinning packs 22 arranged along the first arc 51 and the distance from the center of the arc to the spinning packs 22 arranged along the second arc 52 are uniform. Therefore, it is easy to make the lengths of the polymer pipes 25 connected to the multiple spinning packs 22 arranged along the first arc 51 and the multiple spinning packs 22 arranged along the second arc 52 uniform, and there is no need to make the flow path complicated in order to make the length of the polymer pipes 25 uniform. This makes it easy to realize a configuration in which the polymer passing through the polymer pipes 25 is uniformly heated.

[0044] In addition, each of the yarns Y spun from the multiple spinning packs 22 needs to be threaded on the first guide 6. According to this embodiment, the first guides 6 arranged below the spinning packs 22 are arranged in two rows along the first arc 51 and the second arc 52, similar to the spinning packs 22. Therefore, an operator can move along the arc and thread the yarn on the first guide arranged along the second arc 52 through the gap between the first guides arranged along the first arc. This allows the yarn Y to be easily threaded on the first guide 6 without being hindered by other yarns Y spun below, improving the operability of the work. The same can be said about the threading work on the oil supply guide 5.

[0045] In the spinning production equipment 1 of this embodiment, the spinning pack 22 has a non-placed space 100a that is not placed in a part of the circumferential direction in a plan view. The non-placed space 100a extends in the front-rear direction from the outer edge side of the spinning beam 21 toward the center side. The cooling air pipe (not shown) that supplies cooling air to the cooling device 4 and the oil agent pipe (not shown) that supplies oil agent to the oil supply guide 5 may be cut or clogged, and replacement work of the cooling air pipe or the oil agent pipe may be required while the yarn Y is being spun by the spinning pack 22. According to this embodiment, below the non-placed space 100a where the spinning pack 22 is not placed, a lower space 100b where the yarn Y is not spun is generated. Therefore, an operator can easily replace the pipes even when the yarn Y is being spun by accessing the cooling device 4 and the oil supply guide 5 from the lower space 100b.

[0046] In this embodiment, the first guides 6 and second guides 7 are arranged so that the yarn angle θ, which is the angle of the yarn Y running between each of the first guides 6 and the yarn running portion 71 of the second guide 7 with respect to the vertical direction, is 9 degrees or less. This makes it possible to more reliably ensure the quality of the yarn Y. Also, in this embodiment, the spinning packs 22 are arranged in two rows along the first arc 51 and the second arc 52. This makes it easier to thread the yarn Y on the first guide 6 compared to a case in which the spinning packs 22 are arranged in three or more rows.

[0047] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these examples, and various modifications are possible within the scope of the claims.

[0048] In the above embodiment, the spinning packs 22 are arranged along the first arc 51 on the arc and the second arc 52 inside it. However, for example, as shown in FIG. 6(a), the spinning packs 122 may be arranged in two rows along a U-shape. In this case, for example, the spinning beam 121 has a U-shape formed so that the outer edge is along the position where the spinning packs 122 are arranged. The spinning packs may also be arranged in two rows along a curved straight line. For example, as shown in FIG. 6(b), the spinning packs 222 may be arranged in two rows along a U-shape and the spinning beam 221 may be U-shaped. Also, as shown in FIG. 6(c), the spinning packs 322 may be arranged in two rows along a V-shape and the spinning beam 321 may be V-shaped. The central space of the U-shape of the spinning pack 122, the central space of the U-shape of the spinning pack 222, and the central space of the V-shape of the spinning pack 322 can each be used as an "unarranged portion". Also, the spin packs 22 may be arranged in two rows along a curved or bent straight line in some parts, and arranged in two rows along a straight line in other parts.

[0049] In the above embodiment, the spinning pack 22 that spins one yarn Y consisting of multiple filaments has been described, but the present invention is also applicable to a spinning pack 22 that expands two or more yarns Y. In addition, the spinning packs 22 may be arranged in three or more rows along the arc, but in terms of ease of threading the yarn around the oil supply guide 5 and the first guide 6, it is preferable to arrange them in two rows.

[0050] In the above embodiment, the empty space 100a penetrates the spinning beam 21 from the upper end to the lower end, and has a shape in which a part from a part of the circular outer edge to the center of the spinning beam 21 is hollowed out in a plan view. However, the spinning beam 21 may have a completely circular shape in a plan view and an empty part in a part of the circumferential direction in a plan view where the spinning pack 22 is simply not placed. In this case, the empty space 100a is not formed, and the accommodation space 100 consists of only the lower space 100b.

[0051] Also, the spinning pack 22 may not have an unplaced portion. In this case, the spinning pack 22 is placed along the entire circumference of a circle. However, if the spinning pack 22 does not have an unplaced portion, when replacing the cooling air pipe or the oil agent pipe during the spinning of the yarn Y, for example, it is necessary to replace the cooling air pipe or the oil agent pipe by weaving between the spun yarn Y. Alternatively, a through hole penetrating in the vertical direction is provided in the center part of the spinning beam 21, and the cooling air pipe and the oil agent pipe extending from above the through hole downward must be replaced. In these cases, since the work is difficult, it is preferable that the spinning pack 22 has an unplaced portion.

[0052] In the above embodiment, a comb guide is used as the second guide 7, but it is also possible to adopt a guide such as a U-shaped guide, in which a single guide member is provided with a single yarn running portion that guides the yarn Y.

[0053] In the above embodiment, the wall 101 is formed so as to surround the left-right direction and the front of the storage space 100, but the wall 101 may not be formed. In this case, the pipes are accommodated in the storage space 100 that is not surrounded by the wall 101. However, it is preferable to form the wall 101 because the yarn Y spun from the spinning device 2 is likely to come into contact with the pipes, making replacement of the pipes difficult. The wall 101 may also be formed so as to surround the left-right direction, the top-bottom direction, and the front of the storage space 100. Instead of the wall 101, two plates may be arranged on one side and the other side in the left-right direction of the storage space 100.

[0054] In the above embodiment, one opening 102 is formed in the wall 101 surrounding the accommodation space 100, but a plurality of openings 102 may be formed. In this case, the cooling air piping and the oil agent piping are connected to the internal space 44 and the oil supply guide 5, respectively, through the openings 102 at any positions.

[0055] In the above embodiment, the first guide 6 and the second guide 7 are arranged so that the yarn angle θ is 9 degrees or less. However, the yarn angle θ does not have to be 9 degrees or less. For example, the yarn angle θ is appropriately set to a predetermined value or less depending on the quality of the yarn Y to be ensured. [Explanation of symbols]

[0056] 1. Spinning production equipment 6 First Guide 7 Second Guide 21 Spinning beam 22 Spinning pack 24 Base 51 First Arc 52 Second Arc 100 Storage Space 100a Unplaced space 100b Downward space

Claims

1. A plurality of spinning packs in which a molten polymer is stored and which each spin a yarn downward from a spinneret provided at a lower end thereof; a spinning beam into which the plurality of spinning packs are inserted; A plurality of first guides are arranged directly below the plurality of spin packs, respectively, and each guides a plurality of yarns individually; a second guide disposed below the first guides and converging the yarns guided by the first guides; Equipped with The plurality of spin packs include a first row arranged along a curve in a plan view, and a second row arranged along the first row, The spinning beam has an empty portion in a circumferential direction in a plan view where the spinning pack is not placed, The undisposed portion extends from the outer edge side of the spinning beam toward the center side, A spinning production facility further comprising a wall formed so as to surround the unplaced portion.

2. A plurality of spinning packs in which a molten polymer is stored and which each spin a yarn downward from a spinneret provided at a lower end thereof; a spinning beam into which the plurality of spinning packs are inserted; A plurality of first guides are arranged directly below the plurality of spin packs, respectively, and each guides a plurality of yarns individually; a second guide disposed below the first guides and converging the yarns guided by the first guides; Equipped with The plurality of spinning packs include a first row arranged along a curved straight line in a plan view, and a second row arranged along the first row, The spinning beam has an empty portion in a circumferential direction in a plan view where the spinning pack is not placed, The undisposed portion extends from the outer edge side of the spinning beam toward the center side, A spinning production facility further comprising a wall formed so as to surround the unplaced portion.

3. 3. The spinning production facility according to claim 1, wherein an outer edge of the spinning beam is formed along the positions where the plurality of spinning packs are arranged.

4. 2. The spinning production facility according to claim 1, wherein all of the plurality of spinning packs in the first row are arranged along a single arc in a plan view.

5. The spinning production facility according to any one of claims 1 to 4, characterized in that an angle of the multiple yarns traveling between the first guide and the second guide with respect to the vertical direction is 9 degrees or less.

6. 6. The spinning production facility according to claim 1, wherein the plurality of spinning packs are arranged in two rows, the first row and the second row.

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