EP3569744B1 - Spun yarn cooler - Google Patents

Spun yarn cooler Download PDF

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Publication number
EP3569744B1
EP3569744B1 EP18210068.5A EP18210068A EP3569744B1 EP 3569744 B1 EP3569744 B1 EP 3569744B1 EP 18210068 A EP18210068 A EP 18210068A EP 3569744 B1 EP3569744 B1 EP 3569744B1
Authority
EP
European Patent Office
Prior art keywords
insulator
filaments
spun yarn
outlet
static electricity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18210068.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3569744A1 (en
Inventor
Jumpei Suzuki
Kazuhiro Kawamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TMT Machinery Inc
Original Assignee
TMT Machinery Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TMT Machinery Inc filed Critical TMT Machinery Inc
Publication of EP3569744A1 publication Critical patent/EP3569744A1/en
Application granted granted Critical
Publication of EP3569744B1 publication Critical patent/EP3569744B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D11/00—Other features of manufacture
    • D01D11/04—Fixed guides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D13/00—Complete machines for producing artificial threads
    • D01D13/02—Elements of machines in combination
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F1/00—Preventing the formation of electrostatic charges
    • H05F1/02—Preventing the formation of electrostatic charges by surface treatment
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

Definitions

  • the present invention relates to a spun yarn cooler configured to cool filaments which are spun out from a spinning unit and are made of synthetic resin.
  • a spun yarn cooler recited in JP 2017-145525 A includes a cooling cylinder and a partitioning cylinder in which filaments spun out from a spinning beam and made of synthetic resin run.
  • the filaments are cooled and solidified by cooling wind flowing from the circumferential wall of the cooling cylinder.
  • the cooling cylinder and the partitioning cylinder are housed in a metal box, and the cooled filaments go out of the box through an outlet formed in the lower surface of the box.
  • JP 6291049 B2 is related to the preamble of claim 1, and EP 0 205 694 A1 discloses a similar apparatus.
  • a spinning beam and a spun yarn cooler are provided on the upper floor whereas devices such as a winding device for winding yarns are provided on the lower floor.
  • devices such as a winding device for winding yarns are provided on the lower floor.
  • yarn bring-down an operator on the upper floor brings filaments discharged from the outlet of the spun yarn cooler down to the lower floor (hereinafter, this operation will be referred to as yarn bring-down), and another operator on the lower floor receives the filaments and performs yarn threading to the winding device, etc.
  • the upper floor is connected to the lower floor through a duct, and the filaments are brought down through the duct.
  • the operator may grip the filaments discharged from the spun yarn cooler and pull the filaments crosswise. In so doing, the filaments may make contact with the periphery of the outlet.
  • filaments may make contact with the periphery of the outlet when filaments on an inclined plate shown in FIG. 7(a) of Japanese Patent No. 6291049 are gripped and pulled crosswise or when filaments are sucked by a yarn sucking device as shown in FIG. 7(b) . Because the box is made of metal, movement of electric charges occurs between the filaments and the outlet when the filaments made of synthetic resin make contact with the outlet, with the result that static electricity is generated in the filaments.
  • the filaments may disadvantageously wrap around the spun yarn cooler or the operator or adhere to the inner circumferential surface of the duct connecting the upper floor with the lower floor.
  • the yarn bring-down becomes difficult.
  • the filaments may repel each other and do not converge. In such a case, the operator cannot properly grip the filaments.
  • an object of a spun yarn cooler of the present invention is to restrain static electricity generated by contact between filaments and an outlet so as to facilitate yarn bring-down.
  • the present invention relates to a spun yarn cooler in which a cylindrical space to which cooling wind is supplied is formed to extend in an up-down direction and filament which is made of synthetic resin and spun out from a spinning unit runs in the cylindrical space and then goes out from the cylindrical space thorough a lower outlet, the spun yarn cooler comprising a static electricity suppressor which is provided at a periphery of the outlet, is insulating, and restrains generation of static electricity in the filament when the filament makes contact with the static electricity suppressor.
  • the spun yarn cooler of the present invention is provided with the static electricity suppressor which is provided at a periphery of the outlet, is insulating, and restrains generation of static electricity in the filaments when the filaments make contact with the periphery of the outlet. Movement of electric charges scarcely occurs between the filaments and the static electricity suppressor even when the filament makes contact with the static electricity suppressor. On this account, generation of static electricity in the filament is restrained and the yarn bring-down is easily done, when the yarn bring-down is performed so that the filaments make contact with not the outlet but the static electricity suppressor.
  • the static electricity suppressor is preferably constituted by an insulator different from the outlet.
  • the static electricity suppressor may be formed by applying insulating paint onto the outlet.
  • applicable paints are restricted, and the paint may be peeled off due to contact with the filaments.
  • the material can be selected from various choices, and an optimal material can be chosen in consideration of various factors.
  • the insulator is ring-shaped and is provided along the entire periphery of the outlet.
  • the inner diameter of the ring-shaped insulator is preferably identical with the diameter of the cylindrical space.
  • the cylindrical space is narrow, and this may cause an adverse effect to the running of the filaments. Meanwhile, when the inner diameter of the insulator is longer than the diameter of the cylindrical space, the filaments tend to make contact with not the insulator but the outlet.
  • the inner diameter of the insulator is identical with the diameter of the cylindrical space as described above, contact of the filaments with the insulator is ensured without narrowing the cylindrical space.
  • At least an inner circumferential side of a lower end portion of the insulator is preferably curved.
  • the insulator is preferably made of ceramic.
  • the insulator is preferably matte finished.
  • the insulator is detachably attached to the outlet.
  • the insulator When the insulator is detachable, replacement can be easily done when, for example, the insulator is worn.
  • the spun yarn cooler further includes an extension cylinder for elongating the cylindrical space, which is attachable to the outlet, and when the extension cylinder is attached, the insulator is attached to a lower end portion of the extension cylinder.
  • the extension cylinder may be attached to the outlet in order to enhance the cooling effect.
  • the insulator is detachable, the insulator is easily detached from the outlet and attached to the extension cylinder.
  • the spun yarn cooler further includes: a cylinder body which allows the cooling wind to flow in the cylinder body through part of a circumferential wall; and a box in which the cylinder body is housed, the insulator being fastened to a lower surface of the box together with the cylinder body.
  • the insulator is fastened together with the cylinder body, the number of components and assembly man-hour are reduced.
  • a plurality of filaments are cooled.
  • each filament is narrow and susceptible to static electricity. Yarn bring-down is therefore difficult.
  • the present invention which makes it possible to restrain generation of static electricity in the filaments is therefore particularly effective.
  • the thickness of each of the filaments is equal to or less than 6dtex.
  • the present invention is particularly effective.
  • the filaments are made of nylon 6 or PET-cation.
  • the static electricity amount generated due to contact with the outlet is particularly large in filaments which are made of nylon 6 or PET-cation.
  • the present invention which makes it possible to restrain generation of static electricity in the filaments is therefore particularly effective.
  • FIG. 1 is a cross section of the melt spinning device of the present embodiment.
  • FIG. 2 is a cross section taken along a line II-II in FIG. 1 .
  • the up-down direction, front-rear direction, and left-right direction of the melt spinning device 1 of the present embodiment are defined as shown in FIG. 1 and FIG. 2 .
  • the melt spinning device 1 includes a spinning beam 2 (equivalent to a spinning unit of the present invention), a spun yarn cooler 3, and an oil guide 4.
  • the spinning beam 2 is configured to spin out yarns Y made of synthetic resin.
  • spinning packs 12 are attached, respectively.
  • the spinning packs 12 are staggered to form two lines along the left-right direction.
  • Each spinning pack 12 has, at its lower end portion, a spinneret 13 having nozzles 14.
  • the spinning pack 12 spins out the supplied molten polymer through the nozzles 14 of the spinneret 13, as filaments f.
  • multi-filament yarns Y each formed of plural filaments f are spun out from of the spinning beam 2 of the present embodiment.
  • the spun yarn cooler 3 is configured to cool the filaments f which are spun out from the spinning beam 2.
  • the spun yarn cooler 3 is provided below the spinning beam 2.
  • the spun yarn cooler 3 includes a rectangular parallelepiped box 20 and cylinder bodies 21 housed in the box 20.
  • the box 20 and the cylinder bodies 21 are made of metal.
  • Each cylinder body 21 is provided directly below the spinning pack 12 and extends in the up-down direction. In accordance with the arrangement of the spinning packs 12, the cylinder bodies 21 are staggered to form two lines along the left-right direction (see FIG. 2 ).
  • the internal space of each cylinder body 21 is a cylindrical space 22 extending in the up-down direction, in which the filaments f spun out from the spinning pack 12 run.
  • the internal space of the box 20 is partitioned into upper and lower spaces by a flow adjustment plate 23 which is provided substantially horizontally.
  • the flow adjustment plate 23 is made of a material having flow adjustment capability such as punching metal.
  • the cylinder body 21 is formed in such a way that a cooling cylinder 24 provided in an upper space of the box 20 (i.e., a space above the flow adjustment plate 23) is continuously connected in the up-down direction with a partitioning cylinder 25 provided in a lower space of the box 20 (i.e., a space below the flow adjustment plate 23).
  • the circumferential wall of the cooling cylinder 24 is made of a material having flow adjustment capability such as punching metal, and hence later-described cooling wind is able to flow into the cooling cylinder 24.
  • the circumferential wall of the partitioning cylinder 25 is made of a material which does not allow cooling wind to pass the same.
  • openings 26a and 27a each having a diameter substantially identical with the inner diameter of the cylinder body 21 are formed at parts where the cylinder bodies 21 are provided, respectively.
  • Each of the openings 26a and 27a communicates with the cylindrical space 22 in the cylinder body 21.
  • the filaments f spun out from the spinning beam 2 enter the cylindrical space 22 through the opening 26a, and go out from the space through the opening 27a.
  • the opening 27a is therefore equivalent to an outlet of the present invention.
  • the opening 27a will be referred as an outlet 27a.
  • An insulating unit 30 is provided at the outlet 27a as detailed later.
  • a connecting portion 28 is formed at a rear part of a lower portion of the box 20.
  • the connecting portion 28 is connected to a duct 29.
  • the duct 29 is connected to an unillustrated cooling wind source.
  • the cooling wind supplied from the cooling wind source flows into the lower space of the box 20 via the duct 29.
  • the cooling air having entered the lower space of the box 20 is adjusted upward while passing through the flow adjustment plate 23, and flows into the upper space of the box 20.
  • the cooling wind having entered the upper space of the box 20 is adjusted when passing through the circumferential wall of the cooling cylinder cooling cylinder 24, and flows into the cooling cylinder 24.
  • the filaments f running in the cylindrical space 22 of the cylinder body 21 are cooled by the cooling wind and solidified.
  • the cooling wind does not directly flows from the lower space of the box 20 into the partitioning cylinder 25.
  • the oil guide 4 is configured to apply oil to the yarn Y.
  • the oil guide 4 is provided below the spun yarn cooler 3.
  • the yarn Y having been cooled by the spun yarn cooler 3 comes into contact with the oil guide 4.
  • the oil guide 4 discharges oil to the yarn Y so that the oil is applied to the yarn Y.
  • the yarn Y to which the oil has been applied by the oil guide 4 is wound onto a bobbin by an unillustrated winding device provided below the oil guide 4, so that a package is formed.
  • FIG. 9 is an enlarged view of an outlet 27a and its surroundings of a known spun yarn cooler 103.
  • a spinning beam 2 and a spun yarn cooler 3 are provided on the upper floor whereas devices such as an unillustrated winding device for winding yarns Y are provided on the lower floor.
  • devices such as an unillustrated winding device for winding yarns Y are provided on the lower floor.
  • an operator on the upper floor performs yarn bring-down, i.e., brings filaments Y discharged from the outlet 27a of the spun yarn cooler 103 down to the lower floor, and another operator on the lower floor receives the yarn Y and performs yarn threading to the winding device, etc.
  • the upper floor is connected to the lower floor through a duct, and the filaments f are brought down through the duct.
  • the filaments f may be pulled crosswise when the operator cuts unnecessary part of the filaments f discharged from the outlet 27a or when the operator throws the filaments f down to the lower floor.
  • the filaments f may make contact with the periphery of the outlet 27a in the known spun yarn cooler 103. Because the outlet 27a (box 20) is made of metal, movement of electric charges occurs between the filaments f and the outlet 27a when the filaments f made of synthetic resin make contact with the outlet 27a, with the result that static electricity is generated in the filaments f.
  • the filaments f may disadvantageously wrap around the spun yarn cooler 103 or the operator, or adhere to the inner circumferential surface of the duct connecting the upper floor with the lower floor.
  • the yarn bring-down becomes difficult.
  • the filaments f may repel each other and do not converge. In such a case, the operator cannot properly grip the filaments f.
  • FIG. 3 is an enlarged view of the outlet 27a and its surroundings of the spun yarn cooler 3 of the present embodiment.
  • the insulating unit 30 includes an insulator 31 and an attaching member 32.
  • the insulator 31 is a ring-shaped (cylindrical) member which is insulating and made of ceramic.
  • the attaching member 32 is a ring-shaped member which is made of metal.
  • the insulator 31 and the attaching member 32 are integrated by suitable means such as screwing or adhesion, and form the insulating unit 30.
  • the inner diameter of the insulator 31 and the inner diameter of the attaching member 32 are both substantially identical with the diameter of the cylindrical space 22 (i.e., the inner diameter of the cylinder body 21).
  • the insulating unit 30 is detachably attached to the outlet 27a so that the insulator 31 is on the lower side whereas the attaching member 32 is on the upper side.
  • a flange portion 32a is formed at an upper end portion of the attaching member 32.
  • a flange portion 25a is formed at a lower end portion of the cylinder body 21 (partitioning cylinder 25) housed in the box 20 .
  • the flange portion 32a of the attaching member 32 and the flange portion 25a of the cylinder body 21 are fixed from below to the lower surface 27 of the box 20, by bolts 33.
  • the insulator 31 is fastened to the lower surface 27 of the box 20 together with the cylinder body 21, via the attaching member 32.
  • the filaments f discharged from the outlet 27a in yarn bring-down are pulled crosswise, the filaments f make contact with the lower end portion of the insulator 31.
  • the insulator 31 is insulating, movement of electric charges scarcely occurs between the filaments f and the insulator 31 even when the filaments f make contact with the insulator 31.
  • the generation of static electricity in the filaments f in the yarn bring-down is restrained.
  • the insulator 31 is matte finished. Because of this, fine irregularities are formed on the surface of the insulator 31 and hence the contact resistance of the filaments f is decreased. It is therefore possible to further effectively restrain the static electricity generated by friction.
  • the lower end portion of the insulator 31 is U-shaped to protrude downward.
  • FIG. 4 is an enlarged view of the outlet 27a and its surroundings in a case where an extension cylinder 35 is attached.
  • the extension cylinder 35 may be attached below the outlet 27a as shown in FIG. 4 .
  • the extension cylinder 35 is a cylindrical member having flange portions 35a and 35b at upper and lower end portions, respectively, and is made of a material which does not allow fluid to pass therethrough. As the cylindrical space 22 is elongated by attaching the extension cylinder 35, the filaments f are further effectively cooled by cooling wind.
  • the extension cylinder 35 When the extension cylinder 35 is attached, the bolts 33 are loosened and the insulating unit 30 is detached from the lower surface 27 of the box 20.
  • the upper flange portion 35a of the extension cylinder 35 is fixed to the lower surface 27 of the box 20 by the bolts 33.
  • the insulating unit 30 is attached by bolts 36. In this way, the insulating unit 30 (insulator 31) of the present embodiment is detachable to both the outlet 27a and the extension cylinder 35.
  • Examples of the molten polymer spun out from the spinning beam 2 of the present embodiment include nylon 6 (PA6) having a chemical formula shown in FIG. 5(a) and PET (polyethylene terephthalate)-cation having a chemical formula shown in FIG. 5(b) .
  • PA6 nylon 6
  • PET polyethylene terephthalate
  • the inventors of the subject application empirically know that an amount of static electricity is particularly large when the filaments f are made of such a material.
  • the present invention which makes it possible to restrain static electricity generated in the filaments f is therefore particularly effective.
  • the present invention is favorably used when the thickness of each filament f is, for example, 6dtex (decitex) or less. This is because a thin filament f is susceptible to an influence of static electricity.
  • the material of the filaments f may be synthetic resin which is neither nylon 6 nor PET-cation, and the thickness of each filament f is not restricted to 6dtex or less.
  • FIG. 6 is a table showing results of verification experiments.
  • the verification experiments were directed to a case of generation of a multi-filament yarn Y made of PET-cation.
  • This multi-filament yarn Y is formed of 144 filaments f, and is 136dtex in thickness. The thickness of each filament f is about 0.94dtex.
  • the static electricity amount of the filaments f and whether or not the yarn bring-down was possible were checked in the following three cases: when a matte-finished insulator 31 was provided, when a polished insulator 31 was provided, and when no insulator 31 was provided.
  • a static electricity suppressor (insulator 31) which is provided at the periphery of the outlet 27a of the spun yarn cooler 3 and is insulating is provided in order to restrain the static electricity generated in the filaments f when the filaments f make contact with the static electricity suppressor. Movement of electric charges scarcely occurs between the filaments f and the static electricity suppressor 31 even when the filaments f make contact with the static electricity suppressor 31. On this account, generation of static electricity in the filaments f is restrained and the yarn bring-down is easily done, when the yarn bring-down is performed so that the filaments make contact with not the outlet 27a but the static electricity suppressor 31.
  • the static electricity suppressor is formed by the insulator 31 which is different from the outlet 27a.
  • the static electricity suppressor may be formed by applying insulating paint onto the outlet 27a.
  • applicable paints are restricted, and the paint may be peeled off due to contact with the filaments f.
  • the material can be selected from various choices, and an optimal material can be chosen in consideration of various factors.
  • the insulator 31 is ring-shaped and provided along the entire periphery of the outlet 27a.
  • the insulator 31 is ring-shaped, contact of the filaments to the insulator 31 is ensured in the yarn bring-down. On this account, the generation of static electricity in the filaments f is further effectively restrained.
  • the inner diameter of the ring-shaped insulator 31 is substantially identical with the diameter of the cylindrical space 22.
  • the cylindrical space 22 is narrow, and this may cause an adverse effect to the running of the filaments f.
  • the filaments f tend to make contact with not the insulator 31 but the outlet 27a.
  • the inner diameter of the insulator 31 is identical with the diameter of the cylindrical space 22 as described above, contact of the filaments f with the insulator 31 is ensured without narrowing the cylindrical space 22.
  • At least the inner circumferential side of the lower end portion of the insulator 31 is curved.
  • the insulator 31 is made of ceramic. Because ceramic excels in abrasion resistance, abrasion of the insulator 31 due to contact with the filaments f is restrained when the insulator 31 is made of ceramic.
  • the insulator 31 is matte finished.
  • fine irregularities are formed on the surface and hence the contact resistance of the filaments f is decreased. It is therefore possible to further effectively restrain the static electricity generated by friction.
  • the insulator 31 is detachably attached to the outlet 27a.
  • the insulator 31 is detachable, replacement can be easily done when, for example, the insulator 31 is worn.
  • the extension cylinder 35 for elongating the cylindrical space 22 is attachable to the outlet 27a.
  • the insulator 31 is attached to the lower end portion of the extension cylinder 35.
  • the extension cylinder 35 may be attached to the outlet 27a in order to enhance the cooling effect.
  • the insulator 31 is detachable, the insulator 31 is easily detached from the outlet 27a and attached to the extension cylinder 35.
  • the spun yarn cooler 3 includes the cylinder body 21 into which cooling wind is able to flow through part of the circumferential wall and the box 20 in which the cylinder body 21 is housed, and the insulator 31 is fastened to the lower surface 27 of the box 20 together with the cylinder body 21. Because the insulator 31 is fastened together with the cylinder body 21, the number of components and assembly man-hour are reduced.
  • the spun yarn cooler 3 cools the filaments f.
  • each filament f is narrow and susceptible to static electricity. Yarn bring-down is therefore difficult.
  • the present invention which makes it possible to restrain generation of static electricity in the filaments f is therefore particularly effective.
  • the thickness of each filament is equal to or less than 6dtex. Because a narrow filament f is susceptible to static electricity and yarn bring-down is difficult as described above, the present invention is particularly effective.
  • the filaments f are made of nylon 6 or PET-cation.
  • the static electricity amount generated due to contact with the outlet 27a is particularly large in filaments f which are made of nylon 6 or PET-cation.
  • the present invention which makes it possible to restrain generation of static electricity in the filaments f is therefore particularly effective.
  • the insulator 31 which is a component different from the outlet 27a is provided as the static electricity suppressor of the present invention.
  • the static electricity suppressor may be formed by applying insulating paint onto the outlet 27a.
  • the insulator 31 is ring-shaped and provided along the entire periphery of the outlet 27a.
  • the insulator 31, however, may not be ring-shaped.
  • FIGs. 7(a) and 7(b) show a modification of the insulator.
  • FIG. 7(b) shows the outlet 27a viewed from below.
  • an insulating unit 40 an insulator 41 and an attaching member 42 of the embodiment above may be provided only at part of the periphery of the outlet 27a. While the insulator 41 is provided along a half of the periphery of the outlet 27a in FIGs.
  • the insulator may be provided in a different manner.
  • the insulator 41 is provided not along the entire periphery but at a part of the periphery, in the yarn bring-down, the filaments f are pulled to the side where the insulator 41 is provided. This causes the filaments f to make contact not with the outlet 27a but with the insulator 41, with the result that generation of static electricity in the filaments f is restrained.
  • the insulator 31 is detachably attached to the outlet 27a through the attaching member 32.
  • an insulator 51 may be directly attached to the outlet 27a (the lower surface 27 of the box 20).
  • an insulator may be attached to the outlet 27a in a non-detachable manner (e.g., by using an adhesive).
  • the insulator 31 is made of ceramic.
  • the insulator may be made of an insulating material which is not ceramics.
  • the inner diameter of the insulator 31 is substantially identical with the diameter of the cylindrical space 22.
  • the inner diameter of the insulator 31 may be longer than or shorter than the diameter of the cylindrical space 22, to some degree.
  • the inner diameter of the insulator 31 may be longer than or shorter than the diameter of the cylindrical space 22, provided that the difference between the diameters is about 1mm at the maximum.
  • the insulator 31 is cylindrical in shape and has the inner diameter substantially identical with the diameter of the cylindrical space 22.
  • the insulator 31 may be tapered in shape so that the inner diameter of the insulator 31 increases toward the outlet 27a.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP18210068.5A 2018-05-16 2018-12-04 Spun yarn cooler Active EP3569744B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018094243A JP7149100B2 (ja) 2018-05-16 2018-05-16 紡糸冷却装置

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Publication Number Publication Date
EP3569744A1 EP3569744A1 (en) 2019-11-20
EP3569744B1 true EP3569744B1 (en) 2022-04-27

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JP (1) JP7149100B2 (zh)
CN (2) CN209456620U (zh)

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Publication number Priority date Publication date Assignee Title
JP7149100B2 (ja) * 2018-05-16 2022-10-06 Ｔｍｔマシナリー株式会社 紡糸冷却装置

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JPS571875U (zh) * 1980-06-02 1982-01-07
US4702871A (en) * 1985-06-20 1987-10-27 Toray Industries, Inc. Method for melt-spinning thermoplastic polymer fibers
JPH07118912A (ja) * 1993-10-14 1995-05-09 Murata Mach Ltd 合繊フィラメント紡糸装置
TW268054B (zh) * 1993-12-03 1996-01-11 Rieter Automatik Gmbh
CN100453714C (zh) * 2000-01-20 2009-01-21 因维斯塔技术有限公司 双组分纤维的高速纺丝方法
JP2003286613A (ja) 2002-03-28 2003-10-10 Toray Ind Inc 油剤付与方法および油剤付与装置
CN2861195Y (zh) * 2005-10-24 2007-01-24 中国石化仪征化纤股份有限公司 纺丝用金属网环吹整流筒
JP2008239294A (ja) 2007-03-27 2008-10-09 Toray Ind Inc 熱可塑性繊維の巻取機の糸掛け装置
CN106414819B (zh) 2014-06-23 2018-07-31 日本Tmt机械株式会社 纺丝牵引装置
JP6556641B2 (ja) 2016-02-17 2019-08-07 Ｔｍｔマシナリー株式会社 糸冷却装置
CN207031615U (zh) * 2017-03-22 2018-02-23 吴强 一种一体式吹风静电纺丝器
CN206692787U (zh) * 2017-04-21 2017-12-01 潍坊美珂新材料有限公司 一种涤锦复合丝生产用抽风冷却吸尘装置
JP7149100B2 (ja) * 2018-05-16 2022-10-06 Ｔｍｔマシナリー株式会社 紡糸冷却装置

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Publication number Publication date
EP3569744A1 (en) 2019-11-20
CN110499537A (zh) 2019-11-26
CN110499537B (zh) 2022-11-25
CN209456620U (zh) 2019-10-01
JP7149100B2 (ja) 2022-10-06
JP2019199659A (ja) 2019-11-21

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