Spinning apparatus

Abstract

A spinning device capable of changing the length in the up-down direction of a slow cooling space with a small number of parts even when the number of yarns to be spun is large. The device is provided with a spinning device (2) having a plurality of spinning nozzles (13), a cooling device (3) configured to cool a plurality of yarns (Y) spun from the plurality of spinning nozzles, and a slow cooling section (4) disposed between the spinning device and the cooling device in the up-down direction. The cooling device has a plurality of cooling cylinders (21) configured to guide cooling air to the plurality of yarns. The slow cooling section has a block member (30) and an adjustment section (40). The block member has a plurality of surrounding surfaces (33) configured to surround at least a portion of the plurality of cooling cylinders in the up-down direction, and a plurality of slow cooling spaces (Ss) are formed by the portions of the plurality of surrounding surfaces that are on the upper side than the plurality of cooling cylinders. The adjustment section is configured to be able to adjust the relative positions of the block member and the plurality of cooling cylinders in the up-down direction.

Description

Technical Field

[0001] This invention relates to spinning equipment. Background Technology

[0002] Patent Document 1 discloses a spinning apparatus for producing filaments composed of synthetic fibers. The spinning apparatus includes a spinning device that ejects (spun out) a high-temperature molten polymer as filament material from a spinning spinneret, and a cooling device disposed below the spinning device. Although not illustrated in Patent Document 1, the spinning device has multiple spinning spinnerets. The filament material ejected from each of the multiple spinning spinnerets is cooled and solidified by the cooling device to become a filament composed of one or more filaments. That is, the same number of filaments as the number of spinning spinnerets is produced. Furthermore, in the vertical direction, a space (slow cooling space) is formed between the spinning device and the cooling device for slowly cooling the filament material ejected from the spinning spinnerets and descending. The appropriate length of the slow cooling space in the vertical direction (i.e., the appropriate distance in the vertical direction between the spinning spinnerets and the cooling device) varies depending on the type of filament material (hereinafter referred to as filament type), the thickness of the filaments, and the number of filaments. In other words, when the type of yarn changes, the length of the slow cooling space in the vertical direction needs to be changed (referred to as the spinneret depth in Patent Document 1).

[0003] In response, Patent Document 1 describes a spinneret depth variable device configured to change the spinneret depth. Specifically, the spinneret depth variable device has a cylindrical upper cover fixed to the lower surface of the spinning apparatus and a cylindrical lower cover fixed to the upper surface of a cooling device. The upper cover is configured to surround at least the upper portion of the lower cover. Furthermore, the cooling device is configured to be movable in the vertical direction. By moving the cooling device and the lower cover in the vertical direction, external gas is prevented from flowing into the slow cooling space, and the spinneret depth is changed.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2016-108698

[0005] In recent years, there has been a trend of increasing the number of yarns that spinning devices can produce in a single operation. Under these circumstances, the number of components required to install the aforementioned upper and lower side covers corresponding to each yarn increases, leading to higher costs for the spinning equipment. Summary of the Invention

[0006] The purpose of this invention is to enable the length of the slow cooling space in the vertical direction to be changed with fewer components, even when the number of yarns to be spun is large.

[0007] The spinning apparatus of the first invention comprises: a spinning device having a plurality of spinning spinnerets for spinning filaments respectively; a cooling device disposed below the spinning device and configured to cool the plurality of filaments spun from the plurality of spinning spinnerets respectively; and a slow cooling section disposed vertically between the spinning device and the cooling device. The spinning apparatus is characterized in that the cooling device has a plurality of cooling cylinders extending vertically and disposed to surround the plurality of filaments respectively, and configured to guide cooling air to the plurality of filaments; the slow cooling section comprises: a block component having a plurality of surrounding surfaces configured to surround at least a portion of the plurality of cooling cylinders in the vertical direction, and forming a plurality of slow cooling spaces for slow cooling the plurality of filaments respectively through the portions of the plurality of surrounding surfaces that are higher than the plurality of cooling cylinders; and an adjustment section configured to adjust the relative position of the block component and the plurality of cooling cylinders in the vertical direction.

[0008] In this invention, multiple cooling cylinders can be surrounded by a single block component. Furthermore, by adjusting the relative position of the block component and the multiple cooling cylinders in the vertical direction, the vertical distance between the spinning spinneret and the cooling device (i.e., the vertical length of the slow cooling space) can be changed. Therefore, even when a large number of yarns can be spun in the spinning equipment, the vertical length of the slow cooling space can be changed with a relatively small number of components.

[0009] The spinning apparatus of the second invention is characterized in that, in the first invention, the spinning apparatus includes a sealing member configured to be sandwiched between the spinning device and the block component in the vertical direction.

[0010] If the temperature of the spinning spinneret fluctuates, the quality of the yarn may decrease. In this invention, a sealing component reliably prevents external gas from entering the slow-cooling space through the gap between the spinning device and the block component. Therefore, temperature fluctuations in the spinning spinneret caused by external gas can be suppressed.

[0011] The spinning equipment of the third invention is characterized in that, in the second invention described above, the sealing component is a heat insulation component.

[0012] In this invention, heat transfer between the spinning device and the bulk components can be suppressed. This further suppresses temperature fluctuations at the spinning spinneret.

[0013] The spinning apparatus of the fourth invention is characterized in that, in any one of the first to third inventions, the spinning apparatus includes a moving mechanism configured to move the cooling device between a first position when the multiple filaments are spun from the spinning apparatus and a second position lower than the first position. When the cooling device is in the second position, a working space is formed between the spinning apparatus and the cooling device in the vertical direction, which is capable of operating the multiple spinning spinnerets, the multiple cooling cylinders, and the adjustment unit.

[0014] In this invention, by moving the cooling device to the second position, operations can be performed on the spinning spinneret, cooling cylinder, and adjustment section within the workspace. Therefore, good workability can be ensured.

[0015] The spinning apparatus of the fifth invention is characterized in that, in the fourth invention, the block component is configured to move integrally with the cooling device when the moving mechanism is activated.

[0016] When the cooling device moves to the second position, the block component temporarily separates from the multiple cooling cylinders as it moves relative to the cooling device. Therefore, when moving the cooling device from the second position to the first position, alignment of multiple surrounding surfaces with the multiple cooling cylinders is required, potentially consuming time. In this invention, when the cooling device is moved, the state in which multiple surrounding surfaces respectively surround the multiple cooling cylinders can be maintained. Therefore, the aforementioned need for alignment can be avoided.

[0017] The spinning apparatus of the sixth invention is characterized in that, in the fifth invention, the adjustment section has one or more mounting sections, which are configured to mount the block component and are configured to move relative to the cooling device in the vertical direction.

[0018] In this invention, the block component can be easily removed from the mounting portion as needed.

[0019] The spinning apparatus of the seventh invention is characterized in that, in the sixth invention, the adjustment part has one or more bolts that support one or more of the mounting parts and extend in the vertical direction, and the adjustment part is configured such that the mounting parts can be moved in the vertical direction by rotating the one or more bolts.

[0020] In this invention, the vertical position of the mounting portion can be precisely adjusted by using a simple bolt structure. In other words, the relative positions of the block component and the multiple cooling cylinders can be precisely adjusted by a simple structure.

[0021] The spinning apparatus of the eighth invention is characterized in that, in the seventh invention, the spinning apparatus includes a base portion to which one or more bolts are screwed, the one or more bolts being configured to be movable relative to the base portion in the vertical direction by rotation, and the one or more mounting portions being configured to be movable integrally with the one or more bolts in the vertical direction.

[0022] In this invention, the mounting portion can be moved along the vertical direction through a simple structure.

[0023] The spinning apparatus of the ninth invention is characterized in that, in the eighth invention, the one or more mounting portions have one or more nuts each having a mounting surface that contacts the block component, and the one or more nuts are respectively fixed to the one or more bolts.

[0024] In this invention, inexpensive nuts can typically be used to form the mounting portion. Therefore, the cost of the component can be reduced.

[0025] The spinning apparatus of the 10th invention is characterized in that, in any one of the inventions of the 7th to 9th inventions, the block component has one or more working holes, which are used to operate on one or more bolts when the block component is placed on one or more mounting portions.

[0026] In this invention, with the block component mounted on the mounting section, a tool for rotating the bolt can be brought close to the bolt by passing it through the working hole. Therefore, the bolt can be rotated while the block component is mounted on the mounting section. In other words, when rotating the bolt, it is not necessary to remove the block component from the mounting section. Consequently, the time spent manually adjusting the relative position of the block component and the cooling cylinder can be reduced.

[0027] The spinning apparatus of the 11th invention is characterized in that, in any one of the 6th to 10th inventions described above, the adjustment section has multiple mounting sections as one or more mounting sections.

[0028] In a configuration with only one mounting section, the block component may become unbalanced and tilt relative to the horizontal direction depending on the size relationship between the mounting section and the block component. In such cases, for example, the block component may come into contact with the cooling cylinder, potentially hindering operations used to adjust the relative position of the block component and the cooling cylinder. In this respect, the block component is mounted in multiple mounting sections. Therefore, the balance of the block component can be maintained effectively.

[0029] The spinning apparatus of the 12th invention is characterized in that, in any one of the inventions of the 5th to 11th inventions, each of the plurality of cooling cylinders has: a filter element that can be detached from the cooling device; and a pressing element configured to press the filter element from above, wherein the pressing element is configured to switch between a pressing state in which the filter element is pressed from above and a released state in which the pressing state is released and the filter element is lifted when the cooling device is in the second position.

[0030] In a configuration where the block component can move integrally with the cooling device, depending on the positional relationship between the pressing member and the block component, the block component needs to be moved relative to the cooling device when the filter component is removed from the cooling device. In this invention, by changing the state of the pressing member from a pressed state to a released state, the filter component can be lifted and removed from the cooling device even without moving the block component relative to the cooling device.

[0031] The spinning apparatus of the 13th invention is characterized in that, in the 12th invention described above, the pressing member is a ring member that can be detached from the upper surface of each of the plurality of cooling cylinders.

[0032] In this invention, the filter element can be pressed from above by a simple pressing member, and the filter element can be removed from the cooling device.

[0033] The spinning apparatus of the 14th invention is characterized in that, in any one of the inventions of the 1st to 13th inventions, each of the plurality of cooling cylinders has a plurality of extensions extending downward relative to the lower surface of the block component, and the spinning apparatus has one or more covering members, wherein the one or more covering members are configured to be movable relative to the plurality of extensions at least in the vertical direction, covering the plurality of gaps formed between the plurality of cooling cylinders and the plurality of surrounding surfaces.

[0034] If the gap between the surrounding surface of the block component and the outer peripheral surface of the cooling cylinder is large, external gas can easily flow into the slow cooling space, potentially adversely affecting the yarn quality. Therefore, it is preferable that the gap be as small as possible. However, if the gap is too small, the block component, the surrounding surface, and the outer peripheral surface of the cooling cylinder can easily come into contact during adjustments to their relative positions in the vertical direction. Consequently, the block component and the cooling cylinder cannot move relative to each other, making adjustment difficult. In this invention, during yarn production, the gap between the surrounding surface of the block component and the outer peripheral surface of the cooling cylinder can be covered by a covering component. Therefore, even if the gap is large, external gas can be prevented from flowing into the slow cooling space. Thus, both ease of block component position adjustment and good yarn quality can be achieved.

[0035] The spinning apparatus of the 15th invention is characterized in that, in the 14th invention described above, the one or more covering members are configured to be detachable from the plurality of extensions.

[0036] In this invention, when the relative position of the surrounding surface of the adjusting block component and the cooling cylinder is adjusted, the covering component can be prevented from becoming an obstruction. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the spinning equipment according to this embodiment.

[0038] Figure 2 This is an explanatory diagram showing the state of the cooling device and the slow cooling section in the second position.

[0039] Figure 3 It is a three-dimensional view of the slow-cooling section and its surrounding area.

[0040] Figure 4 It is a three-dimensional view showing the state of the block component being raised from the adjustment section.

[0041] Figure 5 This is an enlarged view of the slow-cooling section and its surrounding components.

[0042] Figure 6 (a) and (b) are explanatory diagrams showing the order of height adjustment of the block components.

[0043] Figure 7 (a) and (b) are explanatory diagrams showing the order in which the filter components are removed.

[0044] Figure 8 This is an enlarged view of the adjusted slow-cooling section and its surrounding components.

[0045] Figure 9 This is an enlarged view of the slow-cooling section and its surrounding components in the modified example.

[0046] Symbol explanation:

[0047] 1: Spinning equipment; 2: Spinning device; 3: Cooling device; 4: Slow cooling section; 13: Spinning spinneret; 20b: Cover component (base part); 21: Cooling cylinder; 22: Filter component; 23E: Extension part; 28: Cylinder (moving mechanism); 30: Block component; 32: Second through hole (working hole); 33: Surrounding surface; 35: Gasket (sealing component); 40: Adjustment part; 41: Mounting part; 42: Bolt; 44: Nut; 52: Cover component (pressing component); 60: Covering component; Ss: Slow cooling space; Sw: Working space; Y: Yarn. Detailed Implementation

[0048] Next, embodiments of the present invention will be described. For ease of explanation, [the following will be described]. Figure 1 The directions shown are up / down and forward / backward. Up / down direction ( Figure 1 The vertical direction (up and down on the paper) is the direction of gravity. The front and back direction ( Figure 1 The left-right direction on the paper is perpendicular to the up-down direction. The direction perpendicular to both the up-down and front-back directions ( Figure 1 The vertical direction of the paper is set as the left and right direction.

[0049] (Spinning equipment)

[0050] Reference Figure 1 The outline diagram illustrates the general structure of the spinning apparatus 1 according to this embodiment. The spinning apparatus 1 is an apparatus for generating filaments Y made of synthetic fibers. The spinning apparatus 1 includes a spinning device 2, a cooling device 3, a slow cooling section 4, and an oiling agent application section 5.

[0051] The spinning apparatus 2 is a melt spinning apparatus configured to spin multiple filaments Y made of molten polymer. The spinning apparatus 2 has a generally rectangular frame 10, multiple component housings 11 formed in the frame 10, and multiple spinning components 12 respectively mounted in the component housings 11. The multiple spinning components 12 are arranged in a zigzag pattern, for example, along the left-right direction (illustration omitted). Regarding the horizontal arrangement, see, for example, [reference needed]. Figure 4 The cooling cylinder 21 (described later) and the first through hole 31 are shown. High-temperature liquid molten polymer (filament material) is supplied to each spinning assembly 12 via piping (not shown). A spinning spinneret 13 is disposed at the lower end of each spinning assembly 12. The spinning spinneret 13, for example, has multiple nozzles (not shown). The spinning assembly 12 ejects filament material (in other words, spins filament Y) from the multiple nozzles of the spinning spinneret 13. The filament material ejected from the multiple nozzles is cooled by the cooling device 3, becoming a filament Y composed of multiple filaments f. That is, one filament Y is spun from one spinning spinneret 13. Alternatively, each spinning spinneret 13 may have only one nozzle. In this case, the filament Y is generated as a monofilament. Furthermore, the filament material immediately after being ejected from the spinning spinneret 13 (before being cooled and solidified) also corresponds to the filament of the present invention.

[0052] The cooling device 3 is configured to solidify the filament material ejected from the multiple spinning spinnerets 13 by cooling air. The cooling device 3 is located below the spinning apparatus 2. Figure 1 As shown, the cooling device 3 has a hollow housing 20 and a cooling cylinder 21. Additionally, in Figure 1 In the diagram, only one cooling cylinder 21 is shown.

[0053] The housing 20 has a main body 20a and a cover member 20b disposed on the upper side of the main body 20a. In this embodiment, the horizontal end of the cover member 20b is bent downwards. However, the shape of the cover member 20b is not limited to this. For example, the cover member 20b can also be simply formed as a flat plate. In this case, the machining time of the cover member 20b can be reduced. The cover member 20b is fixed to the main body 20a, for example, by screw threads (not shown). By removing the screws, the cover member 20b can be separated from the main body 20a. For example, as... Figure 1 As shown, the internal space of the housing 20 is divided vertically by a roughly horizontally arranged rectifier plate 26. The rectifier plate 26 is formed of a material with rectifying function, such as stamped metal.

[0054] Multiple cooling cylinders 21 are configured to guide cooling air towards the yarn material. The multiple cooling cylinders 21 are fixed to the housing 20. The multiple cooling cylinders 21 extend in the vertical direction. The multiple cooling cylinders 21 are respectively positioned directly below the multiple spinning spinnerets 13. That is, when viewed from the vertical direction, the cooling cylinders 21 are configured to surround the yarn material spun from the spinning spinnerets 13. Each cooling cylinder 21 has a filter element 22 and an upper cylinder element 23.

[0055] The filter element 22 is used to guide cooling air inward in the radial direction of the corresponding cooling cylinder 21. The filter element 22 includes a stamped filter 22a and a cooling filter 22b. The stamped filter 22a is a generally cylindrical component. Similar to the rectifier plate 26, the stamped filter 22a is formed of a material with rectifying properties, such as stamped metal. The stamped filter 22a extends upward from the lower end of the upper space of the housing 20 (the space above the rectifier plate 26), protruding upward from the upper end of the cover component 20b. The upper end of the stamped filter 22a is disposed radially inside the upper cylinder component 23 of the cooling cylinder 21. The cooling filter 22b is a generally cylindrical component. The peripheral wall of the cooling filter 22b is formed, for example, of a mesh-like material with rectifying properties. The cooling filter 22b is disposed radially inside the stamped filter 22a. The cooling filter 22b is the same as the stamping filter 22a, but the upper end of the cover component 20b protrudes upward.

[0056] The upper cylinder component 23 is a generally cylindrical component. For example, the upper cylinder component 23 is fixed to the uppermost upper plate portion of the cover component 20b. For example, a flange is formed at the lower end of the upper cylinder component 23, and the flange is fixed to the lower surface of the upper plate portion of the cover component 20b. The upper cylinder component 23 is configured to surround the filter component 22 and press the filter component 22 from above. The upper cylinder component 23 is configured to prevent air from passing through the cooling cylinder 21 radially. This suppresses the inflow of external gas into the inner side of the cooling cylinder 21 radially. The cooling cylinder 21 is configured to guide the cooling air upwards (towards the upper end of the cooling cylinder 21).

[0057] Multiple separator cylinders 24 are arranged directly below the multiple filter elements 22 in the lower space of the housing 20 (the space below the rectifier plate 26). The separator cylinders 24 are configured to prevent air from passing through in the radial direction. The filament material ejected from a certain spinning spinneret 13 and descending passes sequentially through the internal space of the filter element 22 arranged directly below the spinning spinneret 13 and the internal space of the separator cylinders 24.

[0058] A pipe 27 is connected to the lower rear portion of the housing 20. Pipe 27 is connected to a compressed air source (not shown). Using the compressed air source, air for cooling the filament material is supplied to pipe 27. The cooling air is supplied through pipe 27 into the lower space of the housing 20. The airflow within the housing 20 will be explained below (please refer to [reference needed]). Figure 1 (The arrows are shown in the diagram). Air flowing into the lower space of the housing 20 is rectified upwards by the rectifier plate 26 and flows towards the upper space of the housing 20. Furthermore, the walls of the partition cylinder 24 do not allow air to pass through, therefore, air does not flow directly from the lower space of the housing 20 into the partition cylinder 24. Air flowing into the upper space of the housing 20 is rectified as it passes through the filter components 22 (impact filter 22a and cooling filter 22b) and flows radially inwards towards the filter components 22. Thus, air is blown circumferentially towards the filament material from the outside of the filter components 22, and the filament material is cooled to become filament Y.

[0059] The cooling device 3 is configured to be movable vertically by a cylinder 28 (the moving mechanism of the present invention). More specifically, the cylinder 28 is, for example, erected on the workshop floor. A piston rod 28a extends vertically. A cover member 29 extending downward is fixed to the lower end of the housing 20. The front end of the piston rod 28a is fixed to the side of the cover member 29. In this configuration, the cooling device 3 as a whole can be moved to the first position (see reference 1) when the spinning equipment 1 is in operation by the action of the cylinder 28. Figure 1 ) and the second position, which is below the first position (refer to) Figure 2 The cooling device 3 moves between the two positions. When the cooling device 3 is in the first position, it can generate yarn Y. When the cooling device 3 is in the first position, the cooling device 3 and the slow cooling section 4 are subjected to an upward force (towards the spinning device 2) by the cylinder 28. When the cooling device 3 is in the second position, a working space Sw is formed in the vertical direction and between the spinning device 2 and the cooling device 3 (details will be described later).

[0060] The slow cooling section 4 is disposed vertically between the spinning device 2 and the cooling device 3. The slow cooling section 4 is configured to gradually cool (slowly cool) the yarn material from the spinning device 2 until it is cooled by the cooling device 3. A slow cooling space Ss is formed in the slow cooling section 4 for slowly cooling the yarn material. Details regarding the slow cooling section 4 will be described later.

[0061] The oiling application unit 5 is used to apply oil to multiple filaments Y. The oiling application unit 5 is located below the cooling device 3. The oiling application unit 5 has multiple oiling guides (not shown) that are in contact with the multiple filaments Y cooled by the cooling device 3. The multiple oiling guides spray oil onto each of the multiple filaments Y, thus applying oil to the filaments Y. The multiple filaments Y, having been oiled by the oiling application unit 5, are pulled by traction rollers (not shown). Then, the multiple filaments Y are conveyed to a winding device (not shown). The multiple filaments Y are wound onto multiple bobbins (not shown) in the winding device.

[0062] (Detailed composition of the slow cooling section)

[0063] Next, refer to Figures 3-5 The detailed structure of the slow cooling section 4 will be explained. Figure 3 This is a three-dimensional view of the slow-cooling section 4 and its surrounding area. Figure 4 This is a perspective view showing the state in which the block component 30 (described later) is raised from the adjustment section 40 (described later). Figure 5 This is an enlarged view of the slow cooling section 4 and its surrounding components. The appropriate length of the slow cooling space Ss in the vertical direction (more specifically, the appropriate distance in the vertical direction between the lower surface of the spinning spinneret 13 and the upper end of the cooling cylinder 21) varies depending on the type of yarn Y to be produced, the thickness of the filament f, and the quantity. To allow for changing the length of the slow cooling space Ss in the vertical direction with fewer components even when a large number of yarns Y can be spun in the spinning equipment 1, the slow cooling section 4 is configured as follows.

[0064] The slow cooling section 4 includes a block component 30 and an adjustment section 40. The block component 30 is a component used to form the slow cooling space Ss. The adjustment section 40 is configured to adjust the vertical positional relationship between the block component 30 and the cooling cylinder 21. Thus, as described later, the adjustment section 40 is configured to adjust the lower surface 13a of the spinning spinneret 13 (see reference). Figure 5 The distance between the upper end of the cooling cylinder 21 and the upper part of the cooling cylinder 21 in the vertical direction (i.e., the length L of the slow cooling space Ss in the vertical direction). (Refer to...) Figure 5 ).

[0065] like Figure 3 as well as Figure 4As shown, the block component 30 is a generally rectangular parallelepiped-shaped component. The block component 30 is, for example, a metal component made of aluminum alloy. The block component 30 is mounted on a plurality of mounting portions 41 (described later) of the adjustment portion 40. The block component 30 is disposed on the upper side of the housing 20. A plurality of first through holes 31 extending vertically are formed in the block component 30, as well as a plurality of second through holes 32 (operating holes of the present invention) also extending vertically. The block component 30 is, for example, solid except for the portions where the plurality of first through holes 31 and the plurality of second through holes 32 are formed. The plurality of first through holes 31 are formed horizontally at positions corresponding to the plurality of cooling cylinders 21. In this embodiment, the plurality of first through holes 31 are arranged in a serrated pattern along the left-right direction (see reference). Figure 3 as well as Figure 4 The plurality of first through holes 31 are formed to allow the plurality of cooling cylinders 21 (more specifically, the portions of the plurality of upper cylinder members 23 excluding the flange formed at the lower end and its vicinity) to be inserted through in the vertical direction. In other words, the block member 30 has a plurality of surrounding surfaces 33 forming the plurality of first through holes 31. The plurality of surrounding surfaces 33 are generally circular when viewed from the vertical direction. The plurality of surrounding surfaces 33 are configured to respectively surround at least a portion of the upper side (at least a portion in the vertical direction) of the plurality of cooling cylinders 21 (see reference). Figure 5 A slow cooling space Ss is formed through the portion of the plurality of surrounding surfaces 33 that is higher than the plurality of cooling cylinders 21. A plurality of second through holes 32 are formed horizontally at positions corresponding to the plurality of mounting portions 41 described later. Each second through hole 32 has, for example, a small-diameter portion 32a and a large-diameter portion 32b. The small-diameter portion 32a extends from the upper end of the block member 30 to the middle in the vertical direction. The large-diameter portion 32b is disposed below the small-diameter portion 32a and extends to the lower end of the block member 30. The diameter of the large-diameter portion 32b is larger than the diameter of the small-diameter portion 32a. Thus, a downward-facing contact surface 32c is formed at the junction of the small-diameter portion 32a and the large-diameter portion 32b. The contact surface 32c is a surface capable of contacting the mounting portions 41 described later. The block member 30 can be mounted on the plurality of mounting portions 41. Furthermore, the block member 30 can be moved relative to the plurality of mounting portions 41 by an operator.

[0066] A gap 34 is formed between the plurality of surrounding surfaces 33 and the outer peripheral surfaces (outer peripheral surface 23a of the upper cylinder component 23) of the plurality of cooling cylinders 21. The gap 34 is formed to prevent the surrounding surfaces 33 and the cooling cylinders 21 (upper cylinder component 23) from coming into contact with each other and remaining stationary during the adjustment operation described later. On the other hand, in order to prevent external gas from entering the slow cooling space Ss, the gap 34 is preferably as narrow as possible.

[0067] like Figures 3-5As shown, a plate-shaped gasket 35, arranged substantially horizontally, is placed on the upper surface of the block component 30. The gasket 35 is a sealing component used to seal the gap between the lower surface of the spinning device 2 and the upper surface of the block component 30. The gasket 35 is preferably, for example, a rubber component with elasticity and heat resistance. The gasket 35 is preferably a heat-insulating component with heat insulation properties. The gasket 35 is configured to be sandwiched between the spinning device 2 and the block component 30 in the vertical direction when the cooling device 3 and the slow-cooling section 4 are in the first position. The gasket 35 is configured, for example, to be separable from the block component 30. The gasket 35 has approximately the same size as the block component 30 when viewed from the vertical direction. The upper surface of the gasket 35 is substantially entirely in contact with the lower surface of the frame 10 of the spinning device 2. A plurality of first through holes 36 and a plurality of second through holes 37 are formed in the gasket 35, extending in the vertical direction. The plurality of first through holes 36 are arranged in the horizontal direction at positions substantially the same as the plurality of first through holes 31. When viewed from above, each of the plurality of first through holes 36 is the same size or slightly smaller than each of the plurality of first through holes 31. The plurality of second through holes 37 are arranged horizontally at approximately the same positions as the plurality of second through holes 32.

[0068] The adjustment section 40 includes, for example, a plurality of mounting portions 41 configured as mounting block members 30, a plurality of bolts 42 for moving the plurality of mounting portions 41 in the vertical direction, and the aforementioned cover member 20b. The cover member 20b supports the plurality of bolts 42. The cover member 20b corresponds to the base portion of the present invention. As described below, the plurality of mounting portions 41 are supported on the housing 20 in a manner that allows them to move in the vertical direction. Thus, the relative position of the block member 30 and the cooling cylinder 21 in the vertical direction can be changed. A portion of the mounting portions 41 are configured, for example, to support the four corners of the block member 30 in the horizontal direction. Furthermore, the other mounting portions 41 may also be configured, for example, to be sandwiched between the two first through holes 31 in the left-right direction (see reference). Figure 3 as well as Figure 4 ).

[0069] Each mounting portion 41 has a nut 44. The nut 44 has an internal thread (not shown) and engages with the bolt 42. Furthermore, the nut 44 is fixed to the bolt 42, for example, by welding, while engaged with the bolt 42. Thus, the nut 44 is configured to rotate integrally with the bolt 42. The upper surface 44a of the nut 44 (the mounting surface of the present invention) can contact the aforementioned contact surface 32c formed on the block member 30.

[0070] In this embodiment, the bolt 42 is, for example, a known headless full screw or a known double-ended bolt. The bolt 42 extends vertically. The lower portion of the bolt 42 is supported by the cover member 20b. A nut 44 is fixed to the upper portion of the bolt 42. The bolt 42 is rotatable integrally with the nut 44. A threaded hole 42a (see reference) is formed at the upper end of the bolt 42. Figure 4 ). Threaded hole 42a is, for example, a hexagonal hole.

[0071] The cover component 20b is configured to engage with a plurality of bolts 42. More specifically, for example, an insertion hole 43a is formed on the upper surface of the cover component 20b, through which the bolts 42 can be inserted. A nut 43b is disposed, for example, on the immediate lower side of the insertion hole 43a. The nut 43b is fixed to the cover component 20b, for example, by welding. In this embodiment, the nut 43b is included in the cover component 20b. The lower portion of the bolt 42 engages with the nut 43b. By rotating the bolt 42 (and the mounting portion 41), the bolt 42 and the mounting portion 41 can move vertically relative to the cover component 20b (i.e., relative to the cooling device 30).

[0072] When passing through cylinder 28 (refer to) Figure 1 as well as Figure 2 When the cooling device 3 moves in the vertical direction, the mounting part 41 and the bolt 42 move together with the cover part 20b (box 20) in the vertical direction. Therefore, when the cylinder 28 is actuated, the block part 30 mounted on the multiple mounting parts 41 moves together with the cooling device 3 in the vertical direction.

[0073] (Detailed composition of the cooling cylinder)

[0074] Next, refer to Figure 5A more detailed description of the configuration of the plurality of cooling cylinders 21 will be provided. As described above, each of the plurality of cooling cylinders 21 has a filter element 22 (a stamped filter 22a and a cooling filter 22b) and an upper cylinder element 23. The upper end of the stamped filter 22a is connected to the upper end of the cooling filter 22b by a gasket 53. Furthermore, although not shown in the figure, the lower end of the stamped filter 22a is also connected to the lower end of the cooling filter 22b by a gasket (not shown). The upper cylinder element 23 has an outer peripheral element 51 and a cover element 52 (the pressing element of the present invention). The outer peripheral element 51 is fixed to a generally cylindrical portion of the housing 20, for example, by screws (not shown). The outer peripheral element 51 is arranged radially outside the filter element 22. That is, the filter element 22 is arranged radially inside the outer peripheral element 51. In other words, when viewed from above, the filter element 22 is arranged to be surrounded by the outer peripheral element 51. The cover element 52 is an annular element. The cover member 52 is configured to press the filter member 22 from above via the gasket 53. That is, the cover member 52 prevents the filter member 22 from accidentally moving vertically. The cover member 52 is fixed to the upper surface of the outer peripheral member 51, for example, by screws (not shown). That is, the cover member 52 is configured to be detachable from the outer peripheral member 51. In other words, the cover member 52 is configured to switch between a pressed state, where it is threaded onto the upper surface of the outer peripheral member 51, and a released state, where it is removed from the outer peripheral member 51. When the cover member 52 is in the pressed state, it presses the filter member 22 from above. When the cover member 52 is in the released state, the pressure on the filter member 22 is released, and the filter member 22 can be lifted relative to the housing 20. The gasket 53 is a sealing member that contacts the lower surface of the cover member 52. As described above, the gasket 53 connects the stamped filter 22a to the cooling filter 22b.

[0075] (Homework Method)

[0076] Next, in the spinning apparatus 1 having the above-described configuration, referring to Figure 6 (a)~ Figure 8 The work methods performed by the operator shall be described. Figure 6 (a) and (b) are explanatory diagrams showing the sequence of height adjustment of block component 30. Figure 7 (a) and (b) are explanatory diagrams showing the order in which the filter element 22 is removed. Figure 8 This is an enlarged view of the slow-cooling section 4 and its surrounding components after the height of component 30 has been adjusted. The operator can perform the adjustment of the slow-cooling section 4 and the disassembly and assembly of the filter component 22 as described below.

[0077] First, the operator operates the cylinder 28 without spinning yarn Y (yarn material) from the spinning device 2. More specifically, by actuating the cylinder 28, the operator lowers the cooling device 3 and the slow-cooling section 4 from the first position (refer to...). Figure 1 Move to position 2 (refer to) Figure 2 as well as Figure 6 (a) Thus, the aforementioned work space Sw is formed. The work space Sw is a space in which the operator can access the multiple spinning spinnerets 13, the multiple cooling cylinders 21, and the adjustment unit 40. In other words, the operator can perform operations on the multiple spinning spinnerets 13, the multiple cooling cylinders 21, and the adjustment unit 40 within the work space Sw.

[0078] After the cooling device 3 and the slow cooling section 4 move to the second position, the block component 30 is placed on the mounting section 41, and the gasket 35 is placed on the block component 30. Hereinafter, this state will be referred to as the mounting state. In the mounting state, the multiple surrounding surfaces 33 maintain a state in which the upper portions of the multiple cooling cylinders 21 are respectively surrounded by the multiple surrounding surfaces 33.

[0079] In its mounted state, the operator can adjust the height of the slow cooling section 4 (adjustment operation). Specifically, as follows: Figure 6 As shown in (b), the operator, within the workspace Sw, inserts, for example, a hex wrench Hw into the second through hole 37 of the washer 35 and the second through hole 32 of the block component 30, and inserts the tip of the hex wrench Hw into the threaded hole 42a of the bolt 42. Then, the operator rotates the hex wrench Hw with the vertical direction as the axis of rotation, thereby moving the bolt 42 in the vertical direction (i.e., moving the mounting portion 41 in the vertical direction). As a result, the block component 30 on the mounting portion 41 moves in the vertical direction, and the relative position of the surrounding surface 33 and the cooling cylinder 21 in the vertical direction is changed.

[0080] Furthermore, if only one mounting portion 41 moves vertically when the block component 30 is moved vertically, the block component 30 may be supported only by that single mounting portion 41. In this case, the block component 30 may lose its balance and tilt slightly relative to the horizontal direction. Consequently, the multiple surrounding surfaces 33 may come into contact with the multiple cooling cylinders 21 without moving. Therefore, to prevent the block component 30 from becoming stationary, it is necessary to maintain the block component 30 in a substantially horizontal state. Therefore, to maintain the balance of the block component 30, it is preferable to move two or more mounting portions 41 simultaneously vertically. That is, it is preferable to insert two or more hex wrenches Hw into two or more threaded holes 42a and rotate them simultaneously. For example, one operator may rotate two hex wrenches Hw simultaneously. Alternatively, two or more operators may rotate two or more hex wrenches Hw simultaneously.

[0081] Furthermore, the operator can perform the installation and removal of the filter component 22 in the aforementioned mounted state. The operator, for example, uses a screwdriver (not shown) to remove the screws (not shown) that secure the cover component 52 to the outer peripheral component 51. This changes the state of the cover component 52 from the pressed state to the released state. Then, the operator lifts the cover component 52 and removes it from the first through hole 31 of the block component 30. Thus, the cover component 52, which presses against the filter component 22 from above, is removed (see reference). Figure 7 (a)). Afterwards, the operator can lift the filter components 22 (the stamped filter 22a and the cooling filter 22b connected by the gasket 53) and remove them from the cooling unit 3 (see reference 3). Figure 7 (b)). The filter element 22 can also be reinstalled in the cooling device 3 after being cleaned. Alternatively, another new filter element 22 can be installed in the cooling device 3. In this way, the filter element 22 is removed and installed.

[0082] In addition, the operator can also perform tasks such as cleaning the spinning spinneret 13 in the work space Sw, along with the adjustment of the slow cooling section 4 and / or the disassembly and assembly of the filter component 22.

[0083] Then, the operator actuates cylinder 28, causing the cooling device 3 and the slow-cooling section 4 to return from the second position to the first position. As a result, the vertical length L of the slow-cooling space Ss increases, for example, from the original length L1 (refer to...). Figure 5 The length L2 has been changed to the adjusted length (refer to...). Figure 8 Furthermore, the block component 30 and the gasket 35 are subjected to upward force by the cylinder 28. Thus, the gap between the block component 30 and the lower surface of the spinning device 2 is effectively sealed by the gasket 35. Moreover, the upper surface of the gasket 35 is in contact almost entirely with the lower surface of the frame 10 of the spinning device 2. When the cooling device 3 and the slow-cooling section 4 are returned from the second position to the first position, precise alignment of the gasket 35 is not required.

[0084] As described above, a block component 30 can surround multiple cooling cylinders 21. Furthermore, by adjusting the relative position of the block component 30 and the multiple cooling cylinders 21 in the vertical direction using the adjustment unit 40, the vertical distance between the spinning spinneret 13 and the cooling device 3 (that is, the vertical length of the slow cooling space Ss) can be changed. Therefore, even when a large number of yarns Y can be spun in the spinning equipment 1, the vertical length L of the slow cooling space Ss can be changed with a small number of components.

[0085] Furthermore, the gasket 35, which serves as a sealing component, reliably prevents external gas from entering the slow-cooling space Ss through the gap between the spinning device 2 and the block component 30. Therefore, temperature fluctuations in the spinning spinneret 13 caused by external gas can be suppressed.

[0086] Furthermore, the gasket 35 is a heat insulation component. Therefore, it can suppress the movement of heat between the spinning device 2 and the block component 30. As a result, it can further suppress temperature fluctuations in the spinning spinneret 13.

[0087] Furthermore, by moving the cooling device 3 to the second position, operations can be performed on the spinning spinneret 13, the cooling cylinder 21, and the adjustment section 40 within the working space Sw. This ensures good workability.

[0088] Furthermore, when the cooling device 3 moves to the second position, assuming that the block component 30 moves relative to the cooling device 3, the block component 30 temporarily separates from the plurality of cooling cylinders 21. Therefore, when the cooling device 3 is moved from the second position to the first position, it is necessary to align the plurality of surrounding surfaces 33 with the plurality of cooling cylinders 21, which may be time-consuming. In this embodiment, the block component 30 moves integrally with the cooling device 3. Therefore, when the cooling device 3 is moved, it is possible to maintain the state in which the plurality of surrounding surfaces 33 respectively surround the plurality of cooling cylinders 21. Thus, the need for the aforementioned alignment can be avoided.

[0089] Furthermore, in this embodiment, the block component 30 can be easily removed from the mounting portion 41 as needed.

[0090] Furthermore, by using the simple construction of bolt 42, the vertical position of the mounting part 41 can be precisely adjusted. In other words, with this simple construction, the relative position of the block component 30 and the plurality of cooling cylinders 21 can be precisely adjusted.

[0091] Furthermore, the adjustment section 40 has a base section (cover member 20b) to which multiple bolts 42 are screwed. The multiple mounting sections 41 are each configured to move vertically relative to the cover member 20b, integrally with their corresponding bolts 42. Therefore, with a simple construction, the mounting sections 41 can be moved vertically.

[0092] Furthermore, the mounting portion 41 can be formed using a typically inexpensive nut 44. As a result, the cost of the component can be reduced.

[0093] Furthermore, with the block component 30 mounted on the mounting section 41, a tool for rotating the bolt 42 (in this embodiment, a hex wrench Hw) can be brought close to the bolt 42 by passing it through the second through hole 32. Therefore, the bolt 42 can be rotated while the block component 30 is mounted on the mounting section 41. In other words, when rotating the bolt 42, it is not necessary to remove the block component 30 from the mounting section 41. Consequently, the time spent manually adjusting the relative position of the block component 30 and the cooling cylinder 21 can be reduced.

[0094] Furthermore, the block component 30 is mounted in multiple mounting sections 41. Therefore, the balance of the block component 30 can be maintained well.

[0095] Furthermore, by changing the state of the cover member 52 from the pressed state to the released state, the filter member 22 can be lifted and removed from the cooling device 3 even without moving the block member 30 relative to the cooling device 3.

[0096] Furthermore, the filter element 22 can be pressed down from above by the cover part 52 with its simple construction, and the filter element 22 can be removed from the cooling device 3.

[0097] Next, a modified example of the above-described embodiment will be described. However, components having the same structure as those in the above-described embodiment will be labeled with the same symbols and their descriptions will be omitted as appropriate.

[0098] (1) Spinning equipment 1 can also have Figure 9 The diagram shows multiple covering members 60. Each covering member 60 covers the lower end of the gap 34 formed between the surrounding surface 33 of the block member 30 and the cooling cylinder 21 (more specifically, the outer peripheral surface 23a of the upper cylinder member 23). The covering member 60 is configured to be movable at least vertically relative to the extension 23E in the cooling cylinder 21 (upper cylinder member 23) that extends downward beyond the lower surface of the block member 30. That is, the multiple covering members 60 can, for example, be individually configured as rubber rings surrounding the extension 23E. Thus, during the production of yarn Y, the gap 34 can be covered by the covering members 60. Therefore, even when the gap 34 is large, external gas can be prevented from flowing into the slow cooling space Ss. Thus, both ease of position adjustment of the block member 30 and good yarn quality can be achieved. Alternatively, the multiple covering members 60 can be individually configured to be detachable from the cooling cylinder 21 (upper cylinder member 23). That is, the covering member 60 can, for example, be a ring member having multiple ring pieces (not shown) configured to be divisible in the circumferential direction. Therefore, the cover member 60 can be prevented from becoming an obstacle during adjustment operations. Alternatively, in this modified example, a single cover member (not shown) configured to cover all of the multiple gaps 34 may be provided. Alternatively, multiple cover members (not shown) configured to cover several of the multiple gaps 34 may be provided.

[0099] (2) In the embodiments described above, the cover member 52 of the cooling cylinder 21 is threadedly fixed to the outer peripheral member 51, but this is not a limitation. The cover member 52 and the outer peripheral member 51 may, for example, have magnets (not shown). Thus, the cover member 52 can be detachably mounted to the outer peripheral member 51 by magnetic force. Furthermore, the cover member 52 is annular, but this is not a limitation. The cover member 52 can have any shape as long as it is configured to change between the pressed state and the released state described above.

[0100] (3) In the embodiments described above, the cover component 52 can be detached from the outer peripheral component 51, but this is not a limitation. For example, the cover component 52 may be fixed to the outer peripheral component 51 non-detachably by welding. Alternatively, the cooling cylinder 21 may be formed from a single component. Furthermore, in these cases, when performing the detachment / removal operation of the filter component 22, it is necessary to separate the cover component 20b of the housing 20 from the main body 20a. As a preparatory step for this, it is necessary to lift the block component 30 and remove it from the plurality of mounting portions 41.

[0101] (4) The horizontal positions of the multiple mounting parts 41 are not limited to those described above. Considering the operability of adjusting the height of the block component 30, the multiple mounting parts 41 can also be designed to be arranged in the optimal position.

[0102] (5) The second through hole 32 of the block component 30 does not necessarily have to extend through the block component 30 in the vertical direction. The second through hole 32 can be formed as long as it allows the tool to approach the bolt 42, for example, it can extend in an oblique direction. Alternatively, the second through hole 32 does not necessarily have to be formed. However, in this case, it is necessary to remove the block component 30 from the plurality of mounting parts 41 during the adjustment operation.

[0103] (6) In the embodiments described above, the adjusting part 40 has a plurality of mounting parts 41, but is not limited thereto. The adjusting part 40 may also have a larger mounting part (not shown). Such a mounting part may also be supported by one or more bolts 42.

[0104] (7) In the embodiments described above, the mounting portion 41 has a nut 44, but is not limited to this. The mounting portion 41 may also be composed of components other than the nut 44. For example, in the embodiments described above, the bolt 42 does not have a head, but is not limited to this. The bolt 42 may, for example, have a head with a hexagonal hole formed. The mounting portion of the present invention may also be constituted by this head. In addition, a threaded hole (not shown) of a shape other than a hexagonal hole may also be formed in the bolt 42. Furthermore, when the bolt 42 has a head, it is not necessary to form a threaded hole in the head. That is, for example, a known hexagonal bolt with a head of approximately hexagonal prism shape may also be equivalent to both the mounting portion and the bolt of the present invention. However, in this case, it is necessary to remove the block component 30 from the plurality of mounting portions 41 during adjustment operations.

[0105] (8) The configuration of the base portion (cover component 20b) is not limited to the configuration described above. In the example above, the nut 43b is fixed to the cover component 20b, but it is not limited to this. For example, an internal thread may be formed in the through hole 43a formed in the cover component 20b. Thus, the bolt 42 may also be screwed into the through hole 43a. Alternatively, the base portion may be formed from a component (not shown) different from the cover component 20b.

[0106] (9) In the embodiments described above, the adjusting part 40 has a bolt 42 extending in the vertical direction, and the mounting part 41 moves integrally with the bolt 42 in the vertical direction. However, this is not a limitation. The adjusting part (not shown) may, for example, have a rack and pinion mechanism consisting of a rack (not shown) and a pinion (not shown). More specifically, the mounting part (not shown) may be provided on the rack extending in the vertical direction. In this case, the pinion may be approximately orthogonal to the vertical direction. The rack (mounting part) may also be moved in the vertical direction by rotating the pinion. Alternatively, the adjusting part (not shown) may, for example, have a jack (such as a rhomboid telescopic jack) not shown. For example, two rhomboid telescopic jacks (not shown) may be provided in the vertical direction between the block member 30 and the housing 20 (cover member 20b). The two rhomboid telescopic jacks may also be configured to support the two ends of the block member 30 in the long side direction (left-right direction).

[0107] (10) In the embodiments described above, the adjustment unit 40 has a mounting portion 41, on which the block component 30 is mounted. That is, the block component 30 can be easily separated from the adjustment unit 40 and the cooling device 3. However, this is not a limitation. For example, the block component 30 and the adjustment unit 40 may be configured to be difficult or impossible to separate.

[0108] (11) In the embodiments described above, the block component 30 is configured to move integrally with the cooling device 3 when the cylinder 28 is actuated. However, this is not a limitation. The block component 30 may, for example, be fixed to the spinning device 2. That is, the slow cooling section 4 may also be configured such that when the cylinder 28 moves the cooling device 3 from the first position to the second position, the adjusting section 40 separates from the block component 30. Furthermore, it is not necessary to provide a gasket 35 between the spinning device 2 and the block component 30.

[0109] (12) In the embodiments described above, when the cylinder 28 moves the cooling device 3 from the first position to the second position, a working space Sw is formed. That is, in the working space Sw, multiple spinning spinnerets 13, multiple cooling cylinders 21, and the adjustment unit 40 can be operated. However, it is not limited to this. For example, in the working space Sw, only multiple cooling cylinders 21 and the adjustment unit 40 can be operated.

[0110] (13) In the embodiments described above, a cylinder 28 is provided as a moving mechanism for moving the cooling device 3 in the vertical direction. However, this is not a limitation. Instead of the cylinder 28, a hydraulic cylinder (not shown) or a ball screw mechanism (not shown) may be provided, for example.

[0111] (14) In the embodiments described above, the adjustment unit 40 is operated manually by the operator. However, this is not a limitation. The adjustment unit 40 may, for example, have an electrically operated linear actuator (not shown). In this case, it is not necessary to provide a moving mechanism for moving the cooling device 3 in the vertical direction. In such a case, the length of the slow cooling space Ss in the vertical direction can also be changed by the linear actuator. Furthermore, a control device (not shown) for controlling the linear actuator may also be provided.

[0112] (15) In the embodiments described above, the material of the block component 30 is aluminum alloy, but it is not limited to this. The block component 30 may also be formed of a metal material other than aluminum alloy. Alternatively, the block component 30 may also be formed of a non-metallic material. Furthermore, the block component 30 does not necessarily have to be solid. The block component 30 may also be hollow.

[0113] (16) To improve the workability of the filter element 22 during disassembly and assembly, the cooling device 3 may also be configured as follows. For example, one or more openings (not shown) may be provided on the front surface of the main body 20a of the housing 20, and one or more covers (not shown) may be installed to block one or more openings respectively. Preferably, each cover extends in the left-right direction (the direction in which the plurality of cooling cylinders 21 are arranged). Preferably, each cover can be opened and closed or can be removed from the housing 20. In such a configuration, by moving each cover relative to the opening blocked by each cover, the operator can reach into the interior space of the housing 20 from the front. Thus, for example, when the filter element 22 is installed in the housing 20, the operator can easily approach the side of the filter element 22. Therefore, the position of the filter element 22 can be easily fine-tuned.

Claims

1. A spinning apparatus comprising: a spinning device having a plurality of spinning nozzles for spinning a plurality of filaments, respectively; a cooling device disposed below the spinning device and configured to cool the plurality of filaments spun from the plurality of spinning nozzles, respectively; and a slow cooling section disposed between the spinning device and the cooling device in a vertical direction, the spinning apparatus being characterized in that the cooling device has a plurality of cooling cylinders disposed so as to extend in the vertical direction and surround the plurality of filaments, respectively, and configured to guide cooling air to the plurality of filaments, the slow cooling section has: a block member having a plurality of surrounding surfaces configured to surround at least a portion of the plurality of cooling cylinders in the vertical direction, respectively, and form a plurality of slow cooling spaces for slow cooling the plurality of filaments, respectively, by a portion of the plurality of surrounding surfaces on an upper side than the plurality of cooling cylinders; and an adjustment section configured to be able to adjust a relative position of the block member and the plurality of cooling cylinders in the vertical direction, and the spinning apparatus comprises a sealing member disposed so as to be sandwiched between the spinning device and the block member in the vertical direction.

2. The spinning apparatus according to claim 1, wherein the sealing member is a heat insulating member.

3. The spinning apparatus according to claim 1 or 2, wherein the plurality of cooling cylinders each has a plurality of extension portions extending downward from a lower surface of the block member, the spinning apparatus comprises one or more cover members configured to be able to move at least in the vertical direction with respect to the plurality of extension portions, and the one or more cover members cover a plurality of gaps formed between the plurality of cooling cylinders and the plurality of surrounding surfaces.

4. The spinning apparatus according to claim 3, wherein the one or more cover members are configured to be detachable with respect to the plurality of extension portions.

5. A spinning apparatus comprising: a spinning device having a plurality of spinning nozzles for spinning a plurality of filaments, respectively; a cooling device disposed below the spinning device and configured to cool the plurality of filaments spun from the plurality of spinning nozzles, respectively; and a slow cooling section disposed between the spinning device and the cooling device in a vertical direction, the spinning apparatus being characterized in that the cooling device has a plurality of cooling cylinders disposed so as to extend in the vertical direction and surround the plurality of filaments, respectively, and configured to guide cooling air to the plurality of filaments, the slow cooling section has: a block member having a plurality of surrounding surfaces configured to surround at least a portion of the plurality of cooling cylinders in the vertical direction, respectively, and form a plurality of slow cooling spaces for slow cooling the plurality of filaments, respectively, by a portion of the plurality of surrounding surfaces on an upper side than the plurality of cooling cylinders; and an adjustment section configured to be able to adjust a relative position of the block member and the plurality of cooling cylinders in the vertical direction, and the plurality of cooling cylinders each has a plurality of extension portions extending downward from a lower surface of the block member.

6. The spinning apparatus according to claim 5, wherein the plurality of extension portions each has a plurality of extension portions extending downward from a lower surface of the block member. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The spinning device has one or more covering members, which are configured to be movable in the up-down direction relative to the plurality of extension portions, and cover the plurality of gaps formed between the plurality of cooling cylinders and the plurality of surrounding surfaces.

6. The spinning device according to claim 5, wherein The one or more covering members are configured to be detachable relative to the plurality of extension portions.

7. A spinning device comprising: a spinning unit having a plurality of spinning nozzles for respectively spinning filaments; a cooling unit disposed below the spinning unit and configured to cool a plurality of the filaments respectively spun from the plurality of spinning nozzles; and a slow cooling section disposed between the spinning unit and the cooling unit in the up-down direction, the spinning device being characterized in that the cooling unit has a plurality of cooling cylinders disposed so as to respectively surround the plurality of filaments and extend in the up-down direction, and configured to guide cooling air to the plurality of filaments, the slow cooling section has: a block member having a plurality of surrounding surfaces configured to respectively surround at least a portion of the plurality of cooling cylinders in the up-down direction, and a plurality of slow cooling spaces for respectively slow cooling the plurality of filaments formed by a portion of the plurality of surrounding surfaces on the upper side than the plurality of cooling cylinders; and an adjustment section configured to be able to adjust a relative position of the block member and the plurality of cooling cylinders in the up-down direction, the spinning device has a moving mechanism configured to move the cooling unit between a first position at which the plurality of filaments are spun from the spinning unit and a second position on the lower side than the first position, when the cooling unit is positioned at the second position, a work space in which the plurality of spinning nozzles, the plurality of cooling cylinders, and the adjustment section can be worked is formed between the spinning unit and the cooling unit in the up-down direction.

8. The spinning device according to claim 7, wherein the block member is configured to move integrally with the cooling unit at the time of operation of the moving mechanism.

9. The spinning device according to claim 8, wherein the adjustment section has one or more placement sections configured to place the block member and configured to be movable in the up-down direction relative to the cooling unit.

10. The spinning device according to claim 9, wherein the adjustment section has one or more bolts extending in the up-down direction that respectively support the one or more placement sections, the adjustment section is configured to move the placement sections in the up-down direction by rotating the one or more bolts.

11. The spinning device according to claim 10, wherein the spinning device has a base section in which the one or more bolts are screwed, the one or more bolts are configured to be respectively movable in the up-down direction relative to the base section by rotation, the one or more placement sections are configured to be respectively movable in the up-down direction integrally with the one or more bolts.

12. The spinning device according to claim 11, wherein The one or more placement portions each have one or more nut placement surfaces that contact the block member. The one or more nuts are each fixed to the one or more bolts.

13. The spinning device according to claim 10, wherein The block member has one or more work holes for working on the one or more bolts while the block member is placed on the one or more placement portions.

14. The spinning device according to claim 11, wherein The block member has one or more work holes for working on the one or more bolts while the block member is placed on the one or more placement portions.

15. The spinning device according to claim 12, wherein The block member has one or more work holes for working on the one or more bolts while the block member is placed on the one or more placement portions.

16. The spinning device according to claim 9, wherein The adjustment portion has a plurality of placement portions as the one or more placement portions.

17. The spinning device according to claim 10, wherein The adjustment portion has a plurality of placement portions as the one or more placement portions.

18. The spinning device according to claim 11, wherein The adjustment portion has a plurality of placement portions as the one or more placement portions.

19. The spinning device according to claim 12, wherein The adjustment portion has a plurality of placement portions as the one or more placement portions.

20. The spinning device according to claim 13, wherein The adjustment portion has a plurality of placement portions as the one or more placement portions.

21. The spinning device according to claim 14, wherein The adjustment portion has a plurality of placement portions as the one or more placement portions.

22. The spinning device according to claim 15, wherein The adjustment portion has a plurality of placement portions as the one or more placement portions.

23. The spinning device according to any one of claims 8 to 22, wherein The plurality of cooling cylinders each has: a filter member that is detachable with respect to the cooling device; and a pressing member configured to press the filter member from above, the pressing member is configured so that when the cooling device is in the second position, the state can be changed between a pressing state in which the filter member is pressed from above and a release state in which the filter member can be lifted by releasing the pressing.

24. The spinning device according to claim 23, wherein The pressing member is a ring member that is detachable with respect to the upper surface of each of the plurality of cooling cylinders.

25. The spinning device according to any one of claims 7 to 22, wherein The spinning device has a sealing member that is arranged to be sandwiched between the spinning device and the block member in the vertical direction.

26. The spinning device according to claim 23, wherein the spinning device is provided with a sealing member configured to be sandwiched between the spinning unit and the block member in the up-and-down direction.

27. The spinning device according to claim 24, wherein the spinning device is provided with a sealing member configured to be sandwiched between the spinning unit and the block member in the up-and-down direction.

28. The spinning device according to claim 25, wherein the sealing member is a heat insulating member.

29. The spinning device according to claim 26, wherein the sealing member is a heat insulating member.

30. The spinning device according to claim 27, wherein the sealing member is a heat insulating member.

31. The spinning device according to any one of claims 7 to 22, wherein the plurality of cooling cylinders each has a plurality of extensions extending downward from a lower surface of the block member, the spinning device is provided with one or more covering members configured to be movable at least in the up-and-down direction with respect to the plurality of extensions, the one or more covering members covering a plurality of gaps formed between the plurality of cooling cylinders and the plurality of surrounding surfaces.

32. The spinning device according to claim 23, wherein the plurality of cooling cylinders each has a plurality of extensions extending downward from a lower surface of the block member, the spinning device is provided with one or more covering members configured to be movable at least in the up-and-down direction with respect to the plurality of extensions, the one or more covering members covering a plurality of gaps formed between the plurality of cooling cylinders and the plurality of surrounding surfaces.

33. The spinning device according to claim 24, wherein the plurality of cooling cylinders each has a plurality of extensions extending downward from a lower surface of the block member, the spinning device is provided with one or more covering members configured to be movable at least in the up-and-down direction with respect to the plurality of extensions, the one or more covering members covering a plurality of gaps formed between the plurality of cooling cylinders and the plurality of surrounding surfaces.

34. The spinning device according to claim 31, wherein the one or more covering members are configured to be detachable with respect to the plurality of extensions.

35. The spinning device according to claim 32, wherein the one or more covering members are configured to be detachable with respect to the plurality of extensions.

36. The spinning device according to claim 33, wherein the one or more covering members are configured to be detachable with respect to the plurality of extensions.

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