EP0990613B9 - Spulenübergabecaddy - Google Patents

Spulenübergabecaddy Download PDF

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Publication number
EP0990613B9
EP0990613B9 EP19990118333 EP99118333A EP0990613B9 EP 0990613 B9 EP0990613 B9 EP 0990613B9 EP 19990118333 EP19990118333 EP 19990118333 EP 99118333 A EP99118333 A EP 99118333A EP 0990613 B9 EP0990613 B9 EP 0990613B9
Authority
EP
European Patent Office
Prior art keywords
peg
circumferential surface
spring plates
bobbin
spring plate
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
EP19990118333
Other languages
English (en)
French (fr)
Other versions
EP0990613A2 (de
EP0990613B1 (de
EP0990613A3 (de
Inventor
Itaru Yokota
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery 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 Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP0990613A2 publication Critical patent/EP0990613A2/de
Publication of EP0990613A3 publication Critical patent/EP0990613A3/de
Application granted granted Critical
Publication of EP0990613B1 publication Critical patent/EP0990613B1/de
Publication of EP0990613B9 publication Critical patent/EP0990613B9/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/18—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for supplying bobbins, cores, receptacles, or completed packages to, or transporting from, paying-out or take-up stations ; Arrangements to prevent unwinding of roving from roving bobbins
    • D01H9/187—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for supplying bobbins, cores, receptacles, or completed packages to, or transporting from, paying-out or take-up stations ; Arrangements to prevent unwinding of roving from roving bobbins on individual supports, e.g. pallets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/02—Methods or apparatus in which packages do not rotate
    • B65H49/04—Package-supporting devices
    • B65H49/06—Package-supporting devices for a single operative package
    • 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

Definitions

  • the present invention relates to a bobbin transfer tray according to the preamble of claim 1.
  • Such a tray is known from DE-A-4110284.
  • the spring means of this tray is a tube having a longitudinal slit and being helically bent. One of the side edges of the tube has a bent portion engaging into a slit of the peg.
  • the proposed structure allows both side edges of the spring plate to be fully inserted into the slits, so that sharp spring plate edges do not damage the lower end and inner circumferential surface of a core tube.
  • the middle area between the bent portions of the spring plates be curved along the outer circumferential surface of the peg, wherein the curvature at the top of the middle area of the spring plates is equal to that of the outer circumferential surface of the peg, and the curvature of the inner circumferential surface of the lower part differs from that of the outer circumferential surface of the peg.
  • Such a structure allows the lower part of the middle of spring plates to be tilted and fanned out in the length direction of the peg, and the lower part to be closed radially inward when the bobbin is fit, so that reactive force due to longitudinal deformation presses the bobbin. Because the lower part of the spring plates radially collapses from outside, thus deforming the plates in the circumferential direction when the bobbin is installed, the resulting reactive force also presses the bobbin.
  • a bobbin transfer tray T with a cylindrical peg 2 integrally provided in an upright position in the center of a discoid base 1, is adapted so that a core tube 3 of a bobbin B is fit over the peg 2 to support the bobbin B in an upright position.
  • the base 1 and the peg 2 are formed integrally from plastic.
  • a step 4 having a larger diameter than the peg 2 is provided, on top of which is positioned the lower end 5 of the core tube 3.
  • the top of the peg 2 is formed into a cone shape.
  • a center hole 6 is drilled from below in the base 1 and peg 2. The hole provides a suction path to find a yarn end.
  • a suction port 7 is provided to communicate through the top of the peg 2 with the center hole 6.
  • Pressing members in the form of spring plates 9 are provided to press the core tube 3 from inside on the outer circumferential surface 8 of the peg 2.
  • the three spring plates 9 are installed along the circumferential direction of the peg 2 and curved in the circumferential direction so that the spring plates 9 almost entirely cover the lower part of the outer circumferential surface 8, with the upper part of the surface left partially uncovered.
  • the spring plates 9 are formed by curving rectangular stainless steel plates as shown in Figure 6. In particular, both of their side edges are bent at the chain lines over their entire length in the height direction, toward the side of the peg 2, to form bent portions 10 having a predetermined bend length L.
  • the intermediate part 12 between the bent portions 10 is curved along the outer circumferential surface 8 of the peg 2, as described later.
  • slits 13 are formed in the peg 2 along its circumferential direction at intervals of 120 degrees.
  • the slits 13 are intended for insertion of the bent portions 10 of the spring plates 9.
  • the slits 13 receive both side edges or the bent portions 10 of the spring plates 9, which extend over the entire length in the height direction of the spring plates 9.
  • the slits 13 do into the center hole 6 of the peg 2 at the step 4, so that a predetermined wall thickness remains on the side of the outer circumference of the step 4. Because the radial thickness H of the peg 2 is greater than the bend length L of the bent portions 10, the slits 13 have a depth H from the outer circumference 8 that is greater than the bend length L.
  • the curvature R 1 of the inner circumferential surface 20 of the spring plates 9 is equal to the curvature R o of the outer circumferential surface 8 of the peg 2.
  • the top 14 of the intermediate parts 12 of the spring plates 9 is in close contact at their top with the outer circumferential surface 8 of the peg 2.
  • the bent portions 10 at the top 14 of the spring plates 9 are inserted into the slits 13, thus elastically holding the internal surfaces of the slits 13.
  • the bent portions 10 at the top 14 therefore provide fixed portions 16 to be secured to the peg 2.
  • the spring plates 9 are so thin that the difference in level between the outer circumferential surface 8 of the peg 2 and the outer circumferential surface 17 of the spring plates 9 is virtually negligible. Because the depth H of the slits 13 is greater than the bend length L of the bent portions 10, the bent portions 10 do not enter the center hole 6 completely. Thus, there are no obstructions in the center hole 6 on which yarn may be caught.
  • the curvature R 2 of the inner circumferential surface 20 of the spring plates 9 is smaller than the curvature R o of the outer circumferential surface 8 of the peg 2 at the lower part 18 from the top 14 of the intermediate part 12 of the spring plates 12.
  • the lower part 18 of the intermediate part 12 of the spring plates 9 is separated from the outer circumferential surface 8 of the peg 2, and both sides in the circumferential direction are in contact with the outer circumferential surface 8 of the peg 2.
  • the bent portions 10 of the lower part 18 of the spring plates 9 is inserted into the slit 13. However, the bent portions 10 do not actually abut the inner surface 15 of the slit 13, and only the edge of the bent portions 10 is in contact with the inner surface 15. In this way, the lower part 18 is able to freely move radially and elastically deform to come in close contact with the peg 2.
  • the spring plates 9 are curved so that the curvature of their inner circumferential surface is exactly equal at the top to that of the outer circumferential surface 8 of the peg 2, and becomes progressively smaller in the downward direction.
  • the tops of the spring plates 9 are almost entirely secured in close contact with the outer circumferential surface 8 of the peg 2, and their lower parts are projected away from the outer circumferential surface 8 of the peg 2, so that the lower part can freely and elastically deform.
  • the spring plates 9 tilt and are farther from the peg 2 at their lower parts, so that the three spring plates 9 fan out along the length of the peg 2, thus forming a virtually tapered surface.
  • the inner circumferential surface 19 of the core tube 3 comes in contact with the outer circumferential surface 17 of the spring plates 9. Because there is little difference in level between the inner circumferential surface 8 of the peg 2 and the outer circumferential surface 17 of the spring plates 9, the bobbin B is not caught on its downward way.
  • the inner circumferential surface 19 of the core tube 3 radially collapses the spring plates 9 from outside at the outer circumferential surface 8 of the peg 2, so that they come in close contact with the peg 2. Because the curvature R 2 of the inner circumferential surface of the spring plates 9 changes so that it equals the curvature R o f the outer circumference of the peg 2, such deformation in the circumferential direction also provides a pressing force.
  • the curvature R 2 of the inner circumferential surface of the spring plates 9 may normally be greater than the curvature R o of the outer circumferential surface 8 of the peg 2.
  • the curvature R 2 therefore poses no problem if it differs from the curvature R o.
  • the curvature R 2 is smaller than the curvature R o.
  • the center of the spring plates 9 in the circumferential direction is the farthest point from the peg 2.
  • both sides of the spring plates 9 are the farthest points from the peg 2.
  • the structure is as shown in Figure 5. In such a case, a pressing force is applied to the core tube 3 from both sides of the spring plates 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Springs (AREA)

Claims (4)

  1. Spulentransportteller (T) mit einem Zapfen (2) in aufrechter Position in der Mitte einer scheibenförmigen Basis (1) zur Aufnahme eines Kernrohrs (3) einer Spule (B), die auf den Zapfen (2) aufgesetzt ist, bestehend aus einer Federeinrichtung, die im Zapfen aufgenommen und drehfest in Umfangsrichtung, jedoch abnehmbar in den Zapfen (2) eingreift,
    gekennzeichnet durch
    wenigstens eine gebogene Federplatte (9), deren beide Seitenkanten abgebogene Abschnitte (10) bilden, die federnd in Längsschlitze (13) des Zapfens (2) eingreifen, und dadurch, dass
    die Krümmung (R2) der Innenumfangsfläche der Federplatte (9) kleiner als die Krümmung (R0) der Außenumfangsfläche (8) des Zapfens (2) am unteren Teil (18) der Federplatte (9) ist.
  2. Spulentransportteller nach Anspruch 1, bei dem die abgebogenen Abschnitte (10) und die Schlitze (13) über die gesamte Länge der Federplatte (9) in Höhenrichtung gebildet sind, und beide Seitenkanten der Federplatte vollständig in die Schlitze einsetzbar sind.
  3. Spulentransportteller nach Anspruch 1 oder 2, bei dem die Federplatte (9) derart gebogen ist, dass die Krümmung ihrer Innenumfangsfläche am oberen Ende gleich der Außenumfangsfläche (8) des Zapfens (2) ist und nach unten fortschreitend kleiner wird.
  4. Spulentransportteller nach einem der Ansprüche 1 bis 3, bei dem die Tiefe der Schlitze (13) von der Außenumfangsfläche des Zapfens aus größer als die Länge der abgebogenen Abschnitte (10) der Federplatte (9) ist.
EP19990118333 1998-09-30 1999-09-15 Spulenübergabecaddy Expired - Lifetime EP0990613B9 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP27829198 1998-09-30
JP27829198A JP3682569B2 (ja) 1998-09-30 1998-09-30 管糸搬送用トレイ

Publications (4)

Publication Number Publication Date
EP0990613A2 EP0990613A2 (de) 2000-04-05
EP0990613A3 EP0990613A3 (de) 2001-01-03
EP0990613B1 EP0990613B1 (de) 2004-04-14
EP0990613B9 true EP0990613B9 (de) 2004-12-01

Family

ID=17595316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990118333 Expired - Lifetime EP0990613B9 (de) 1998-09-30 1999-09-15 Spulenübergabecaddy

Country Status (3)

Country Link
EP (1) EP0990613B9 (de)
JP (1) JP3682569B2 (de)
DE (1) DE69916390T2 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016466A1 (de) * 1990-05-22 1991-11-28 Schlafhorst & Co W Textilmaschine, insbesondere automatische spulmaschine, mit einem transportsystem, in dem voneinander unabhaengige paletten zirkulieren
DE4110284A1 (de) * 1991-03-28 1992-10-01 Schlafhorst & Co W Palette, die jeweils eine textilspule aufrechtstehend waehrend des transportes und in bearbeitungsstationen einer textilmaschine traegt
DE4226105A1 (de) * 1992-08-07 1994-02-10 Schlafhorst & Co W Caddy zum Transport von jeweils einer Textilspule zu und/oder in einer Textilmaschine
IT1286404B1 (it) * 1996-11-22 1998-07-08 Savio Macchine Tessili Spa Supporto perfezionato per mantenere in posizione eretta spole e tubetti per il loro trasporto e posizionamento nelle macchine tessili

Also Published As

Publication number Publication date
DE69916390D1 (de) 2004-05-19
DE69916390T2 (de) 2005-05-04
JP3682569B2 (ja) 2005-08-10
EP0990613A2 (de) 2000-04-05
JP2000103572A (ja) 2000-04-11
EP0990613B1 (de) 2004-04-14
EP0990613A3 (de) 2001-01-03

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