EP2377977B1 - Ensemble de filature - Google Patents

Ensemble de filature Download PDF

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Publication number
EP2377977B1
EP2377977B1 EP11156156.9A EP11156156A EP2377977B1 EP 2377977 B1 EP2377977 B1 EP 2377977B1 EP 11156156 A EP11156156 A EP 11156156A EP 2377977 B1 EP2377977 B1 EP 2377977B1
Authority
EP
European Patent Office
Prior art keywords
gasket
polymer
spinning pack
link member
spinning
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
EP11156156.9A
Other languages
German (de)
English (en)
Other versions
EP2377977A1 (fr
Inventor
Taichi Kojima
Makoto Nishioji
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 EP2377977A1 publication Critical patent/EP2377977A1/fr
Application granted granted Critical
Publication of EP2377977B1 publication Critical patent/EP2377977B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes

Definitions

  • the present invention relates to spinning packs, and more particularly, to a technique regarding configurations of gaskets for spinning packs.
  • melt-spinning apparatuses are known that melt thermoplastic resin (polymer) at high temperatures, extrude the molten polymer through fine nozzles, and wind the extruded polymer while cooling it to form it into a yarn.
  • a spinning pack is also known to be attached to a heating barrel of the melt-spinning apparatus to filter highly heated and highly pressurized polymer and straighten the flow of the polymer, and then to discharge the filtered and flow-straightened polymer through a multiplicity of spinneret holes.
  • a spinning pack body is configured to be removable from a link member attached to a spin block serving as a heating barrel considering maintenance such as washing of the interior of the spinning pack body. Also, the spinning pack body is attached to the link member via a gasket to provide communication without leakage between a polymer conduit formed in the link member and a polymer conduit formed in the spinning pack body (for example, Patent document 1).
  • spinning packs each have therein a plurality of polymer conduits.
  • a plurality of gaskets are each individually provided between the link member and the spinning pack body of each of the plurality of polymer conduits.
  • Patent Document 2 describes an apparatus for the production of conjugated artificial filaments comprising a gasket 2 and pins 10 that are arranged to fix the position of a first distributing member relative to a holder.
  • Patent Document 3 describes a die tip adapter for extruding a plurality of meltblown multicomponent filaments.
  • a spinning pack is attached to a heating barrel of a melt-spinning apparatus.
  • the spinning pack includes a link member, a lid member, and a gasket.
  • the link member is attached to the heating barrel and has a plurality of first polymer conduits in the link member.
  • the lid member is disposed below the link member and has a plurality of second polymer conduits in the lid member.
  • the gasket is disposed between the lid member and the link member and has a plurality of polymer holes in the gasket to communicate with the plurality of first and second polymer conduits, wherein the number of the polymer holes is the same as that of the first and second polymer conduits, respectively.
  • the lid member comprises a groove-shaped gasket engagement portion on a surface of the lid member on which the gasket is disposed and wherein the gasket is engaged with the groove-shaped gasket engagement portion.
  • the gasket has a circular outline, wherein the gasket engagement portion comprises a pin engagement portion, wherein the gasket has a pinhole passing through the gasket, and wherein the gasket is engaged with the lid member with a pin engaged with the pin engagement portion and the pinhole.
  • grooves are formed around the polymer conduits on a bottom surface of the link member as if to edge the opening portions of the polymer conduits at a predetermined space from edges of opening portions of the polymer conduits, wherein each groove is particularly formed in a V cross section in its formation direction.
  • the link member may include a groove portion on a surface thereof contacting the gasket.
  • the groove portion is around opening portions of the plurality of first polymer conduits.
  • the link member and the lid member may have an axial direction parallel to the plurality of first polymer conduits and to the plurality of second polymer conduits, and have a circumferential direction that is rotational about the axial direction.
  • the gasket may include rotation restricting means for restricting rotation of the gasket in the circumferential direction.
  • the spinning pack according to the embodiments of the present invention minimizes polymer leakage that might be caused due to dimensional errors of gaskets and due to processing errors of gasket-fitted portions.
  • melt-spinning apparatus 50 including a spinning pack 10, which is one embodiment of the present invention, will be described.
  • the melt-spinning apparatus 50 extrudes a thermoplastic resin (polymer) molten at high temperatures through fine nozzles and winds the polymer while cooling it to form it into a yarn.
  • a thermoplastic resin polymer
  • the spinning pack 10 according to the present invention is applicable to both a POY spinning apparatus and an FDY spinning apparatus, and in the present embodiment, the spinning pack 10 will be described as an FDY spinning apparatus.
  • the melt-spinning apparatus 50 includes a hopper 1 into which polymer chips dried at high temperatures are transferred; an extruder 2 to melt the polymer chips to a spinnable viscosity and to discharge the polymer at high pressure; a polymer pipe 3 to feed the discharged molten polymer to a spin block 4 as described below; a spin block 4 serving as a heating barrel that contains a heating medium and includes a gear pump (not shown) as constant quantity supplying means; and a spinning pack 10 attached to the spin block 4 to filter the heated polymer supplied at a constant quantity from the gear pump, to straighten the flow of the heated polymer, and to discharge the filtered and flow-straightened polymer at high pressure.
  • the melt-spinning apparatus 50 also includes a cooling chimney 5 to cool a yarn Y spun from the spinning pack 10 using a cooling pipe; an oil supplying guide 6 to supply to the yarn Y an oil solution for reducing friction with the guide and other element, for keeping static charge off the yarn Y, and for providing flexibility to the yarn Y; an entangling nozzle 7 to cause an appropriate level of turbulence to the flow of the yarn Y so as to homogenize the oil solution supplied to the yarn Y; a first roller 8a and a second roller 8b to change the direction of the yarn Y; and a winder 9 to wind the yarn Y as an undrawn yarn.
  • a cooling chimney 5 to cool a yarn Y spun from the spinning pack 10 using a cooling pipe
  • an oil supplying guide 6 to supply to the yarn Y an oil solution for reducing friction with the guide and other element, for keeping static charge off the yarn Y, and for providing flexibility to the yarn Y
  • an entangling nozzle 7 to cause an appropriate level of
  • FIGs. 2A, 2B , 3A, and 3B the spinning pack 10 will be described. It is noted that the arrow Z shown in FIG. 2B indicates the axial direction of the spinning pack 10 and the component parts of the spinning pack 10, and the pointing direction of the arrow Z is the upper side. Also, an arrow X shown in FIG. 2A indicates the circumferential direction of the spinning pack 10 and the component parts of the spinning pack 10.
  • FIG. 3A shows a cross-sectional view of the spinning pack 10 taken along the line A-A in FIG. 2A
  • FIG. 3B shows a cross-sectional view taken along the line B-B in FIG. 2A , which is a 90-degree rotation of the cross section shown in FIG. 3A .
  • the spinning pack 10 includes a link member 20 and a spinning pack body 40.
  • the spinning pack body 40 is configured to be removable from the link member 20 considering maintenance such as washing of the interior of the spinning pack body 40 and the like is performed.
  • a gasket 60 is a consumable supply that is replaced every time maintenance of the spinning pack body 40 is carried out.
  • the link member 20 joints the spin block 4 and the spinning pack body 40 to one another, and is attached to the spin block 4 in advance using a bolt (not shown).
  • the link member 20 includes a convex portion 21 that is oriented downward, and two polymer conduits 20A and 20B in the axial direction inside the link member 20.
  • a male screw portion is formed on the periphery of the convex portion 21.
  • the spinning pack body 40 is attached to the link member 20 via the gasket 60, and includes a lid member 30, a retainer 42, and a spinneret 43 inside a cylindrical contour 41 of the spinning pack body 40.
  • the lid member 30 is disposed as an uppermost portion of the spinning pack body 40, and includes two polymer conduits 30A and 30B respectively communicating with the above-described polymer conduits 20A and 20B of the link member 20 in the axial direction inside the spinning pack body 40.
  • the lid member 30 has a concave portion 31 on an upper surface of the lid member 30, and a groove-shaped engagement portion 32 on a bottom surface 31L of the concave portion 31, the engagement portion 32 serving as a gasket-fitted portion to engage with the gasket 60.
  • a female screw portion is formed on a side surface of the concave portion 31.
  • the retainer 42 is disposed below the lid member 30 and includes polymer conduits 42A and 42B respectively communicating with the polymer conduits 30A and 30B in the axial direction inside the retainer 42.
  • a filtering medium, a filter, and other elements are provided along the polymer conduits 42A and 42B.
  • the spinneret 43 is disposed below the retainer 42 and includes a group of spinning hole (not shown) respectively communicating with the polymer conduits 42A and 42B.
  • the gasket 60 has an elliptical outline serving as rotation restricting means in plan view of the spinning pack 10 in the axial direction.
  • the gasket 60 includes polymer holes 60A and 60B in the axial direction to respectively communicate with the polymer conduits 30A and 30B of the lid member 30 when the gasket 60 is engaged with the engagement portion 32.
  • the gasket 60 according to the present embodiment is made of an aluminum material, and delta gaskets 70 and 80, which will be described below, are similarly made of an aluminum material. It is noted that the rotation restricting means will be described in detail below.
  • the engagement portion 32 of the lid member 30 has an elliptical inner outline similarly to the outline of the gasket 60 in the axial direction, and has a depth in the axial direction that is smaller than the height of the gasket 60 in the axial direction.
  • grooves 22 are formed around the polymer conduits 20A and 20B on a bottom surface 20L of the link member 20 as if to edge the opening portions of the polymer conduits 20A and 20B at a predetermined space from the edges of the opening portions of the polymer conduits 20A and 20B.
  • Each groove 22 is formed in a V cross section in its formation direction. It is noted that the cross sectional shape of the groove 22 in its formation direction is not limited to V shapes but may be concave shapes.
  • the gasket 60 When the spinning pack body 40 is attached to the link member 20, the gasket 60 is engaged with the engagement portion 32 and thus disposed on the lid member 30. Then, the misalignment of the gasket 60 in the circumferential direction relative to the spinning pack body 40 is restricted. Then, the spinning pack body 40 is threaded in the circumferential and upward directions against the link member 20 to engage the concave portion 31 with the convex portion 21, thus attaching the spinning pack body 40 to the link member 20.
  • the concave portion 31 of the spinning pack body 40 includes a positioning member (not shown) to align the positions of the polymer conduits 20A and 20B of the link member 20 with the positions of the polymer conduits 30A and 30B of the lid member 30, when the spinning pack body 40 is attached to the link member 20.
  • the top surface of the gasket 60 closely fits the bottom surface 20L of the link member 20, while the bottom surface of the gasket 60 closely fits a bottom surface 32L of the engagement portion 32 of the lid member 30.
  • the polymer holes 60A and 60B respectively communicate with the polymer conduits 20A and 20B and with the polymer conduits 30A and 30B.
  • Such a configuration provides the following advantages.
  • a spinning pack with two polymer conduits includes one gasket for one polymer conduit between the link member and the spinning pack body, that is, two gaskets in total.
  • two gaskets doubles dimensional errors of products, namely of gaskets and gasket-fitted portions, as the number of the gaskets indicates. This may degrade the sealability between the link member and the spinning pack body in a spinning pack.
  • the spinning pack 10 of the present embodiment uses one gasket 60 with two polymer holes 60A and 60B respectively communicating with the two polymer conduits 20A and 20B (30A and 30B). This ensures a reduction in the cause of dimensional errors of the gaskets 60 and the engagement portions 32, which serve as gasket-fitted portions, and thus ensures minimized polymer leakage that might be caused due to dimensional errors of the gaskets 60 and the engagement portions 32.
  • the link member 20 includes the grooves 22 on the bottom surface 20L around the opening portions of the polymer conduits 20A and 20B, which is advantageous in that when the spinning pack body 40 is attached to the link member 20, the contact area between the top surface of the gasket 60 and the bottom surface 20L reduces compared with the case of a flat bottom surface 20L, and the tightening force required when tightening the spinning pack body 40 is small compared with the case of a flat bottom surface 20L.
  • the gasket 60 is fixed in the circumferential direction by the rotation restricting means relative to the spinning pack body 40. This eliminates the need for aligning the two polymer holes 60A and 60B of the gasket 60 respectively with the two polymer conduits 20A and 20B (30A and 30B).
  • the rotation restricting means restricts the rotation of the gasket 60 in the circumferential direction when the gasket 60 is rotated in the circumferential direction relative to the engagement portion 32. Specifically, when the gasket 60 is rotated in the circumferential direction, the rotation restricting means contacts any surface of the engagement portion 32 to disallow further movement (rotation) of the gasket 60 in the circumferential direction. That is, the rotation restricting means of the gasket 60 is assumed by the elliptical outline of the gasket 60.
  • the protruding portion assumes the rotation restricting means.
  • the engagement portion 32 includes an engagement portion for the protruding portion.
  • the protruding portion assumes the rotation restricting means.
  • the engagement portion 32 includes an engagement portion for the protruding portion.
  • FIG. 6A shows a cross-sectional view of the spinning pack 10 corresponding to the cross section along the line A-A shown in FIG. 2A
  • FIG. 6B shows a cross-sectional view corresponding to the cross section taken along the line B-B in FIG. 2A , which is a 90-degree rotation of the cross section shown in FIG. 6A .
  • the convex portion 21 and the concave portion 31 have similar configurations to those described above, and therefore the description of the configurations will not be repeated.
  • the engagement portion 32 in a groove shape is formed on the bottom surface 31L of the concave portion 31.
  • the engagement portion 32 has the same circular inner periphery as the outline of the delta gasket 70, which is described below, in a cross-sectional view in the axial direction.
  • the engagement portion 32 also includes two pin engagement portions 33 at positions corresponding to pinholes 71 and 71 of the delta gasket 70, which is described below.
  • the delta gasket 70 has a circular outline in plan view in the axial direction and has such an outline in a cross-sectional view parallel to the axial direction that the corners of a rectangle are cut off along straight lines.
  • the delta gasket 70 also includes polymer holes 70A and 70B through the delta gasket 70 to respectively communicate with the polymer conduits 30A and 30B of the lid member 30 when the delta gasket 70 is engaged with the engagement portion 32. Between the polymer holes 70A and 70B, the delta gasket 70 also includes therethrough pinholes 71 and 71 as rotation restricting means that are symmetrical relative to the center line L of the polymer holes 70A and 70B.
  • the positions of the pinholes 71 and 71 in the delta gasket 70 are not limited to the present embodiment insofar as the pinholes 71 and 71 are arranged at two positions symmetrically relative to the center line L of the polymer holes 70A and 70B.
  • the delta gasket 70 is engaged with the engagement portion 32 to be disposed on the lid member 30 such that pins 90 are engaged with the pin engagement portion 33 and the pinholes 71 to restrict the misalignment of the delta gasket 70 in the circumferential direction relative to the spinning pack body 40. Then, the spinning pack body 40 is threaded in the circumferential and upward directions against the link member 20 to engage the concave portion 31 with the convex portion 21, thus attaching the spinning pack body 40 to the link member 20.
  • delta gasket 70 use of a circular shape for the outline of the delta gasket 70 enables use of highly versatile, circular cylindrical aluminum die casts and like die casts in manufacturing produce delta gaskets 70, resulting in a reduction in production cost of the delta gasket 70.
  • all the polymer holes 70A and 70B and the pinholes 71 and 71 are through holes. This facilitates the hole processing, resulting in a reduction in production cost of the delta gasket 70.
  • the pinholes 71 and 71 are arranged at two positions in the delta gasket 70 symmetrically relative to the center line L of the polymer holes 70A and 70B. This ensures that even though the delta gasket 70 is attached to the spinning pack 10 to allow high pressure polymer to pass through the delta gasket 70, the delta gasket 70 is uniformly deformed, thereby minimizing degradation of sealability.
  • the delta gasket 80 has such an outline in a cross-sectional view parallel to the axial direction that the corners of a rectangle including opening portions of polymer holes 80A and 80B are cut off along straight lines to result in, as a whole, approximately a diamond shape.
  • the other configurations including that of pinholes 81 are similar to the configurations related to the delta gasket 70 described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (5)

  1. Ensemble de filage (1) attaché à un cylindre de chauffage d'un appareil de filage par fusion (50), dans lequel
    l'ensemble de filage (1) comprend un élément de liaison (20) attaché au cylindre de chauffage et présentant une pluralité de premiers conduits polymères dans l'élément de liaison (20) ; un élément de couvercle (30) disposé en dessous de l'élément de liaison (20) et présentant une pluralité de seconds conduits polymères dans l'élément de couvercle (30) ; et un joint (60, 70, 80) disposé entre l'élément de couvercle (30) et l'élément de liaison (20) et présentant une pluralité de trous polymères dans le joint (60, 70, 80) pour communiquer avec la pluralité de premiers et seconds conduits polymères, et
    dans lequel le nombre des trous polymères est identique à celui des premiers et seconds conduits polymères, respectivement,
    caractérisé en ce que
    l'élément de couvercle (30) comprenant une partie de mise en prise de joint en forme de rainure (32) sur une surface de l'élément de couvercle (30) sur laquelle le joint (60, 70, 80) est disposé, et
    dans lequel le joint (60, 70, 80) est mis en prise avec la partie de mise en prise de joint en forme de rainure (32).
  2. Ensemble de filage (1) selon la revendication 1, caractérisé en ce que
    le joint (60, 70, 80) présente un contour circulaire,
    dans lequel la partie de mise en prise de joint (32) comprend une partie de mise en prise de broche (33),
    dans lequel le joint (60, 70, 80) présente un trou de broche (71) traversant le joint (60, 70, 80), et
    dans lequel le joint (60, 70, 80) est mis en prise avec l'élément de couvercle (30) avec une broche mise en prise avec la partie de mise en prise de broche (32) et le trou de broche (71).
  3. Ensemble de filage selon la revendication 1 ou 2, dans lequel des rainures (22) sont formées autour des conduits polymères sur une surface inférieure (20L) de l'élément de liaison (20) comme pour rapprocher les parties d'ouverture des conduits polymères à un espace prédéterminé depuis des bords de parties d'ouverture des conduits polymères, dans lequel chaque rainure (22) est particulièrement formée en une section transversale en V dans sa direction de formation.
  4. Ensemble de filage selon l'une quelconque des revendications 1 à 3, dans lequel l'élément de liaison comprend une partie de rainure sur une surface de celui-ci venant en contact avec le joint, la partie de rainure étant autour de parties d'ouverture de la pluralité de premiers conduits polymères.
  5. Ensemble de filage selon l'une quelconque des revendications 1 à 4,
    dans lequel l'élément de liaison et l'élément de couvercle présentent une direction axiale parallèle à la pluralité de premiers conduits polymères et à la pluralité de seconds conduits polymères, et présentent une direction circonférentielle qui est rotationnelle autour de la direction axiale, et
    dans lequel le joint comprend un moyen de limitation de rotation pour limiter une rotation du joint dans la direction circonférentielle.
EP11156156.9A 2010-03-01 2011-02-28 Ensemble de filature Active EP2377977B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010044747A JP5448935B2 (ja) 2010-03-01 2010-03-01 紡糸パック

Publications (2)

Publication Number Publication Date
EP2377977A1 EP2377977A1 (fr) 2011-10-19
EP2377977B1 true EP2377977B1 (fr) 2020-11-11

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EP11156156.9A Active EP2377977B1 (fr) 2010-03-01 2011-02-28 Ensemble de filature

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EP (1) EP2377977B1 (fr)
JP (1) JP5448935B2 (fr)
CN (1) CN102191567B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5908821B2 (ja) 2012-10-04 2016-04-26 Ｔｍｔマシナリー株式会社 溶融紡糸装置
JP2015081400A (ja) * 2013-10-24 2015-04-27 Ｔｍｔマシナリー株式会社 紡糸パック
KR102344856B1 (ko) 2018-03-29 2021-12-28 코오롱인더스트리 주식회사 고강도 원사를 제조하기 위한 방사팩, 이를 포함하는 원사의 제조장치 및 그 제조방법
CN109183168B (zh) * 2018-08-30 2021-06-08 绍兴美纶化纤有限公司 涤纶纤维挤出成型装置

Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2000248421A (ja) * 1999-02-24 2000-09-12 Teijin Ltd 複合繊維用紡糸装置

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US3237245A (en) * 1962-10-10 1966-03-01 Mitsubishi Vonnel Co Ltd Apparatus for the production of conjugated artificial filaments
JPS60375U (ja) * 1983-06-15 1985-01-05 ユニチカ株式会社 溶融紡糸装置
JPH0277363U (fr) * 1988-12-05 1990-06-13
KR930012184B1 (ko) * 1989-11-27 1993-12-24 바마크 악티엔 게젤샤프트 용융 방사장치
JP2604413Y2 (ja) * 1992-06-16 2000-05-15 松下電器産業株式会社 電気洗濯機
DE4447420A1 (de) * 1994-12-30 1996-07-04 Fischer Karl Ind Gmbh Spinndüsenanordnung für Mehrkomponentenfäden
FR2736134B1 (fr) * 1995-06-29 1997-08-22 Kertscher Sa E Dispositif d'etancheite, notamment pour machine de transformation de matiere plastique
JP2881124B2 (ja) 1995-07-28 1999-04-12 東レエンジニアリング株式会社 溶融紡糸装置
KR200162866Y1 (ko) * 1995-12-06 1999-12-15 구광시 합성섬유사 제조용 방사팩
KR0135578Y1 (ko) * 1995-12-29 1999-02-01 이상범 화섬사 방사공정에 사용되는 스핀 팩의 취입부 팩킹
JP2004232092A (ja) * 2002-11-29 2004-08-19 Mitsubishi Rayon Co Ltd 溶融紡糸用口金パック
US7150616B2 (en) * 2003-12-22 2006-12-19 Kimberly-Clark Worldwide, Inc Die for producing meltblown multicomponent fibers and meltblown nonwoven fabrics
DE202008015313U1 (de) * 2008-09-16 2009-04-30 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Abkühlen mehrerer synthetischer Filamentbündel

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JP2000248421A (ja) * 1999-02-24 2000-09-12 Teijin Ltd 複合繊維用紡糸装置

Also Published As

Publication number Publication date
JP2011179138A (ja) 2011-09-15
JP5448935B2 (ja) 2014-03-19
CN102191567A (zh) 2011-09-21
EP2377977A1 (fr) 2011-10-19
CN102191567B (zh) 2014-12-17

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