EP0562757B1 - Tuyau de canette à fil - Google Patents

Tuyau de canette à fil Download PDF

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Publication number
EP0562757B1
EP0562757B1 EP19930302042 EP93302042A EP0562757B1 EP 0562757 B1 EP0562757 B1 EP 0562757B1 EP 19930302042 EP19930302042 EP 19930302042 EP 93302042 A EP93302042 A EP 93302042A EP 0562757 B1 EP0562757 B1 EP 0562757B1
Authority
EP
European Patent Office
Prior art keywords
spinning tube
tube according
spacer means
spinning
ribs
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.)
Expired - Lifetime
Application number
EP19930302042
Other languages
German (de)
English (en)
Other versions
EP0562757A1 (fr
Inventor
Edward Adderley
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.)
GLOSSOP THERMOPLASTICS Ltd
Original Assignee
GLOSSOP THERMOPLASTICS Ltd
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 GLOSSOP THERMOPLASTICS Ltd filed Critical GLOSSOP THERMOPLASTICS Ltd
Publication of EP0562757A1 publication Critical patent/EP0562757A1/fr
Application granted granted Critical
Publication of EP0562757B1 publication Critical patent/EP0562757B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/50—Storage means for webs, tapes, or filamentary material
    • B65H2701/51—Cores or reels characterised by the material
    • B65H2701/512—Cores or reels characterised by the material moulded
    • B65H2701/5122—Plastics

Definitions

  • the present invention relates to yarn spinning tubes (also commonly known as carrier tubes) according to the first part of claim 1.
  • Known cardboard spinning tubes are also considered to be "single-trip" items in that they are discarded after the yarn has been off-wound.
  • FR-A-2190109 describes a plastics material spinning tube manufactured by an extrusion technique.
  • a yarn spinning tube comprising a first outer member of generally tubular form made of a plastics material, a second inner member of generally tubular form made of a plastics material, the two members being substantially concentric and being radially separated by spacer means, wherein the first outer and second inner members are separate interfitted members.
  • the spinning tube of the present invention may advantageously be made from thermoplastic plastics material.
  • plastics materials which may be used in spinning tubes of the present invention may include polypropylene, styrenes, polyesters and many others.
  • Plastics material spinning tubes of the present invention are more able to withstand such manufacturing process treatments than conventional cardboard spinning tubes, and furthermore, are able to be reused a number of times. This is also true where the yarn requires dyeing after manufacture; when wound on conventional cardboard spinning tubes, the yarn frequently needs to be off-wound onto other plastics material carriers prior to dyeing as the cardboard cannot withstand the conditions during the dyeing process. Plastics material spinning tubes of the present invention are able to withstand the conditions during a dyeing process.
  • a further advantage of using plastics material is that spinning tubes may be easily colour-coded to automatically enable yarns wound thereon to be identified. Dye colorants in the plastics material enable such colour-coding to be carried out during moulding.
  • Spinning tubes of the present invention may preferably be made by the technique of plastics injection moulding. It has been found that when manufactured by injection moulding, the necessary accuracy may be easily maintained. Yarns may typically be wound onto the spinning tube at speeds up to 6000 m/min giving rise to high rotational speeds of over 1600 rev/min of the spinning tube. Upwards of 4kg of yarn may be wound onto the spinning tube leading to high out-of-balance forces with consequent vibration and possible damage to the winding machine bearings if high dimensional accuracy is not maintained during moulding.
  • the spinning tube of the present invention may comprise an outer, generally tubular member having spacer means formed in the bore thereof, and a separately formed inner, generally tubular member which is fitted into the bore of the outer member.
  • the inner, generally tubular member may have spacer means formed on the outer diameter thereof, and be fitted into the substantially plain bore of a generally tubular outer member.
  • both the bore of the outer member and the outer diameter of the inner member may both be provided with spacer means.
  • the spacer means formed integrally with the bore of the outer, generally tubular member.
  • the two component parts may, for example, be assembled by fitting the solidified, but still warm outer member over the inner member and allowing the assembly to fully cool, thereby effecting a strong interference fit due the shrinkage of the outer member about the inner member.
  • the spacer means may comprise generally axially extending ribs which may be moulded integrally with either the bore of the outer member or with the outer diameter of the inner member or both.
  • the ribs may be truly axially extending, in that they are substantially parallel to the spinning tube axis, or may extend helically in the axial direction of the spinning tube in the manner of "rifling" in a gun barrel.
  • yarn spinning tubes are generally either driven from the bore by, for example, engaging tapered cones mounted on a driven spindle, or may be driven from the outer surface thereof by, for example, a driven friction wheel or roller.
  • a driven friction wheel or roller it may be beneficial to provide either the outer surface of the inner member, or the inner surface of the outer member with means to provide positive mechanical driving engagement between the inner and outer members.
  • Such means may comprise grooves or axially directed, upstanding engagement means, such as rails for example, which cooperate with the spacer means or ribs to give positive engagement for driving purposes between the outer and inner members.
  • one end of the outer member may be provided with a smooth rounded shape to facilitate the yarn being off-wound without snagging.
  • plastics material spinning tubes of the present invention may be manufactured more economically than conventional cardboard spinning tubes, and moreover as stated above, may be reused.
  • a yarn spinning tube is shown generally at 10.
  • the spinning tube comprises two constituent mouldings; an outer, generally tubular member 12 and an inner; generally tubular member 14. Both the outer member 12 and inner member 14 are separately produced by a plastics injection moulding technique from thermoplastic material.
  • the outer member 12 has radially inwardly directed spacer means 16, in this case in the form of axially continuous ribs of generally rectangular section, moulded integrally therewith on the bore surface 18 and extending along substantially the whole axial length.
  • the inner member 14 is essentially a plain cylinder fitted inside the outer member. The two constituent parts are fitted together by fitting the outer member 12 over the inner member 14 whilst the former is still warm from the moulding process.
  • a typical thermoplastic material such as polypropylene, an interference fit of approximately 0.2mm may easily be achieved by this method.
  • Figure 3 shows a second embodiment wherein ribs 30 are provided on the outer diameter 32 of the inner member 14 in addition to the ribs 16 on the bore 18 of the outer member 12.
  • Figure 4 shows a third embodiment of a spinning tube wherein the inner member 14 is provided with grooves 40 in the outer diameter 42 thereof, the grooves 40 cooperating with the radially inner ends of the ribs 16 of the outer member 12.
  • the purpose of this embodiment is to provide, in addition to the existing interference fit, a positive mechanical engagement between the outer and inner members where, for example, a rotational driving force may be imparted to the outer member through the inner member.
  • FIG. 5 An embodiment for a similar purpose to that of Figure 4 is shown in a fourth embodiment in Figure 5, wherein the grooves 40 are replaced by upstanding rails 50 which are moulded integrally with the outer surface 52 of the inner member 14.
  • ribs 16 and 30 have been shown in the above Figures as being of rectangular cross-section, it will be apparent to those skilled in the art that other cross-sectional shapes may be employed. For example, ribs of frusto-conical cross-sectional shape may be employed in some circumstances.
  • ribs in the above examples have been shown as being axially directed in that they are parallel with the spinning tube axis.
  • ribs having a helical form may also be employed and describing, for example, a one quarter or a one half revolution of the tube diameter along the axial length thereof.

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  • Storage Of Web-Like Or Filamentary Materials (AREA)

Claims (13)

  1. Tuyau de canette (10) comprenant un premier élément extérieur (12) de forme générale tubulaire et fait en matériau plastique, un second élément intérieur (14) de forme générale tubulaire et fait en matière plastique, les deux éléments (12, 14) étant sensiblement concentriques et étant séparés radialement par des moyens d'espacement (16), caractérisé en ce que le premier élément extérieur (12) et le second élément intérieur (14) sont des éléments distincts et assemblés par ajustement réciproque.
  2. Tuyau de canette selon la revendication 1, caractérisé en ce que les moyens d'espacement sont des nervures (16) formées intégralement ou venues de matière avec le trou (18) de l'élément extérieur (12).
  3. Tuyau de canette selon la revendication 1, caractérisé en ce que les moyens d'espacement sont des nervures (30) formées intégralement ou venues de matière avec la surface extérieure (32) de l'élément intérieur.
  4. Tuyau de canette selon la revendication 1, caractérisé en ce que les moyens d'espacement sont des rainures formées intégralement ou venues de matière sur, à la fois, le trou (18) de l'élément extérieur (12) et sur la surface périphérique (32) de l'élément intérieur (14).
  5. Tuyau de canette selon l'une des revendications précédentes, caractérisé en ce que les moyens d'espacement sont parallèles à l'axe du tuyau de canette.
  6. Tuyau de canette selon l'une des revendications 1 à 4, caractérisé en ce que les moyens d'espacement sont disposés en hélice par rapport à l'axe du tuyau de canette.
  7. Tuyau de canette, selon l'une des revendications précédentes 2 à 6, caractérisé en ce que la surface de l'élément tubulaire adjacent à l'extrémité libre des moyens d'espacement est pourvue de moyens aptes à venir en prise avec les nervures.
  8. Tuyau de canette selon la revendication 7, caractérisé en ce que les moyens de prise avec les moyens d'espacement comportent des rainures (14) prévues sur la surface.
  9. Tuyau de canette selon la revendication 7, caractérisé en ce que les moyens aptes à venir en prise avec les moyens d'espacement comportent des rails (50) faisant saillie et disposés sur la surface.
  10. Tuyau de canette selon l'une des revendications précédentes, caractérisé en ce que l'une des extrémités axiales de l'élément extérieur est pourvue d'une forme présentant un profil arrondi régulier.
  11. Tuyau de canette selon la revendication 10, caractérisé en ce que l'une des extrémités axiales de l'élément extérieur comporte également une portion formant collerette (22).
  12. Tuyau de canette selon l'une des revendications précédentes, caractérisé en ce que les moyens d'espacement sont disposés soit symétriquement, soit régulièrement, autour du tuyau de canette.
  13. Tuyau de canette selon l'une des revendications 4 à 12, caractérisé en ce qu'il est prévu seize moyens d'espacement disposés symétriquement.
EP19930302042 1992-03-20 1993-03-17 Tuyau de canette à fil Expired - Lifetime EP0562757B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9206040 1992-03-20
GB929206040A GB9206040D0 (en) 1992-03-20 1992-03-20 Yarn spinning tube

Publications (2)

Publication Number Publication Date
EP0562757A1 EP0562757A1 (fr) 1993-09-29
EP0562757B1 true EP0562757B1 (fr) 1995-08-09

Family

ID=10712474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930302042 Expired - Lifetime EP0562757B1 (fr) 1992-03-20 1993-03-17 Tuyau de canette à fil

Country Status (3)

Country Link
EP (1) EP0562757B1 (fr)
DE (1) DE69300346T2 (fr)
GB (1) GB9206040D0 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9404689U1 (de) * 1994-03-19 1994-05-26 Vaw Aluminium Ag, 53117 Bonn Und 1000 Berlin Metallfolienbund und Aufwickelhülse hierfür

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1735017C3 (de) * 1966-02-07 1979-04-05 Francesco Dr.-Ing. Mailand Steffenini (Italien) Einteilige Wickelhülse aus Kunststoff, insbesondere zur Aufnahme von Garnwicklungen
FR2190109A5 (en) * 1972-06-22 1974-01-25 Tcheco Plastic Plastic bobbin - comprises concentric inner and outer tubes connected along their lengths by ribs

Also Published As

Publication number Publication date
DE69300346D1 (de) 1995-09-14
GB9206040D0 (en) 1992-05-06
DE69300346T2 (de) 1996-03-07
EP0562757A1 (fr) 1993-09-29

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