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WO1999002442A1 - Arbre ameliore destine a supporter les sections coupees d'un rouleau dans un dispositif de coupe et d'embobinage - Google Patents

Arbre ameliore destine a supporter les sections coupees d'un rouleau dans un dispositif de coupe et d'embobinage Download PDF

Info

Publication number
WO1999002442A1
WO1999002442A1 PCT/EP1998/004262 EP9804262W WO9902442A1 WO 1999002442 A1 WO1999002442 A1 WO 1999002442A1 EP 9804262 W EP9804262 W EP 9804262W WO 9902442 A1 WO9902442 A1 WO 9902442A1
Authority
WO
WIPO (PCT)
Prior art keywords
annular member
shaft
annular
respect
members
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.)
Ceased
Application number
PCT/EP1998/004262
Other languages
English (en)
Inventor
Adelio Miglietta
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1999002442A1 publication Critical patent/WO1999002442A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/246—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by relative rotation around the supporting spindle or core axis
    • B65H75/247—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by relative rotation around the supporting spindle or core axis using rollers or rods moving relative to a wedge or cam surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B65H18/106—Mechanisms in which power is applied to web-roll spindle for several juxtaposed strips
    • 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
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/243—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages actuated by use of a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41486—Winding slitting winding on two or more winding shafts simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/40—Holders, supports for rolls
    • B65H2405/45—Shafts for winding/unwinding

Definitions

  • the present invention concerns a shaft for supporting cut sections of a reel in a cutting and winding machine, and a cutting and winding machine including such a shaft.
  • cutting and winding machine refers to a machine capable of unwinding a reel of strip-like material, for example, paper or plastics film, cutting it perpendicular to its axis into two or more sections and rewinding the cut sections to form reels having an axial extent less than that of the original reel.
  • the cut sections are usually rewound onto a pair of separate shafts in such a way that contiguous sections of the original reel are rewound onto different shafts in an alternately offset arrangement.
  • the various sections are rewound onto respective tubular cores, usually made from cardboard and positioned co-axially about the shafts.
  • the present invention concerns a shaft for supporting cut reel sections, comprising a cylindrical body having at least one cavity in its outer surface accommodating a resilient envelope connectable to a source of fluid under pressure, for example, compressed air, and a plurality of first annular members disposed coaxially along the body.
  • the first annular members are capable of expanding circumferentially upon inflation of the resilient envelope, and exerting a pressure on the inner surfaces of the cores onto which the cut reel sections are rewound, thus enabling the transmission of the rotary motion from the shaft to these latter.
  • the object of the present invention is a shaft of the type indicated above, characterised in that it includes a plurality of second annular members disposed along the body, coaxial with respect thereto and in a radially outer position with respect to the aforesaid first annular members, at least one seat being formed between at least one first and one second annular member, accommodating an engagement element capable of projecting radially from the outer surface of the second annular member upon relative rotation of the first annular member with respect to the second annular member, and of applying a localised pressure to the facing inner surface of one of the cores.
  • This localised pressure holds the cut section of the reel and the associated core to the underlying annular member, thereby avoiding relative slippage, both circumferentially and axially.
  • a further object of the present invention is a cutting and winding machine including at least one shaft of the type described above.
  • Figure 1 is a perspective view of a cutting and winding machine including a pair of shafts according to the invention
  • Figure 2 is a side view of the machine of Figure 1;
  • Figure 3 is a view in section of one of the shafts of the invention, taken on the line III-III of Figure 1; and Figure 4 is a view in section taken on the line IV-IV of Figure 3.
  • the reference numeral 10 indicates a cutting and winding machine which is in itself known and only described in outline in this document.
  • the machine 10 comprises a support frame 12 to which is pivoted a first shaft 14 which is rotatable and capable of supporting a reel 16 of strip material to be unwound.
  • a plurality of rollers 18 for guiding the strip 20 unwound from the reel 16, and a cutting shaft 22 which supports a plurality of longitudinally spaced cutters, not visible in the drawings, capable of cutting the strip 20 into several sections in a direction parallel to its length and perpendicular to the axes of the first shaft 14 and the guide rollers 18.
  • a pair of rewinding shafts 24 pivoted to the frame 12 is a pair of rewinding shafts 24 provided with means capable of causing the rotation thereof and on which are positioned longitudinally spaced tubular cores 26, usually formed from pressed cardboard.
  • a respective section 28 of the cut strip is wound around each core 26, forming a reel the axial extent of which is less than that of the original reel 16.
  • Each rewinding shaft 24 comprises ( Figures 3 and 4) a cylindrical body 30 having a plurality of equally circumferentially spaced cavities 32 on its outer surface, rectangular in section and extending at right angles and parallel to the axis 34 of the shaft 24.
  • Each cavity 32 accommodates a respective resilient envelope 36 connectable in a known way not illustrated in the drawings (for example, by means of ducts formed in the body 30) to a source of fluid under pressure, for example, compressed air.
  • a plurality of first annular members 38 is disposed coaxially along the body 30.
  • a plurality of second annular members 40 is disposed along the body 30, coaxially with respect thereto and in a radially outer position with respect to the first annular members 38.
  • Each second annular member 40 is disposed around a first annular member 38 such that the two associated annular members 38, 40 are symmetrical with respect to a plane perpendicular to the axis 34 of the shaft 24.
  • Respective rolling element bearings 42 comprising an outer race 44 and an inner race 46 between which is interposed a ring of ball bearings 48, are interposed between axially adjacent pairs of associated first 38 and second 40 annular members.
  • Each second annular member 40 has a T-section with laterally projecting wings 50 that rest on the respective outer races 44 of the adjacent rolling element bearings 42.
  • each first annular member 38 and the associated second annular member 40 surrounding it is formed a plurality of circumferentially-spaced seats capable of accommodating an associated spherical engagement element 52 which, as will be explained in detail in the following description of the operation, is capable of projecting radially from the outer surface of the second annular member 40.
  • Each seat is formed by a radial hole 54 having a conical section formed in the second annular member 40, and a portion 56 cut along a chord of the outer circumference of the first annular member 38 and radially aligned with respect to the associated hole 54.
  • a tooth 58 protrudes radially outwardly from each first annular member 38 into a circumferentially-extending slot 60 formed in the second associated annular member 40. Furthermore, a respective layer 62 of a friction material is disposed between each resilient envelope 36 and the facing inner surfaces of each first annular member 38.
  • the strip 20, which is slowly unwound from the reel 16 is cut into several sections perpendicular to the axis of the reel 16 by the cutters mounted on the shaft 22.
  • the cut sections 28 of the strip 20 then form reels having a reduced axial extent after being rewound on an associated core 26 positioned on one of the shafts 24 which are rotated about their own axes .
  • the cores 26 engage with the associated shaft 24 upon inflation of the envelopes 36, which causes a pressure to be exerted by the layers 62 against the inner surface of the first annular members 38 which are thus driven to rotate due to the friction with the body 30.
  • the second annular members 40 initially do not move, until the tooth 58 of the associated rotating first annular member 38 abuts against one of the lateral surfaces of the slot 60 formed in the second annular member 40.
  • the tooth 58 and the associated slot 60 thus constitute means capable of limiting the relative rotation of the first annular member 38 with respect to the second annular member 40 that surrounds it.
  • This relative rotation - which can advantageously be of the order of approximately 15° - means that the spheres 52 are caused to project from the outside of the holes 54, since there is no longer a cut portion 56 (contrary to that illustrated in Figures 3 and 4) at their lower part along a chord of the outer circumference of the first annular member 38, but a completely curved portion.
  • the spheres 52 - which are prevented from coming right out of the holes 54 by the conical shape of these latter - are thus capable of applying a localised pressure to the facing inner surface of the associated core 26, holding it to the underlying annular member 40, both axially and circumferentially.
  • the tangential velocity is given by the product of the angular velocity of rotation and the radius of the section 28 that is being wound. This latter value may, however, vary between the various cut sections 28, if the thickness of the material constituting the original reel 16 is not constant over the width of the strip, for example, due to manufacturing imperfections .
  • this slippage may take place between the body 30 of the shaft 24 and the surrounding first annular members 38, each of which, together with the associated second annular member 40, is connected to a single cut section 28.
  • the body 24 and first annular members 38 are, in fact, held together only by the frictional forces exchanged with the layers 62, and not by projecting elements engaging an abutment surface.
  • the slippage of the first annular members 38 with respect to the body 30 of the shaft 24 can be controlled with extreme precision, which slippage depends upon the forces of friction exchanged with the layers 62.
  • each second annular member 40 can be chosen bearing in mind that there must be at least one annular member 40 for each reel section 28.

Landscapes

  • Manufacture Of Motors, Generators (AREA)
  • Winding Of Webs (AREA)

Abstract

L'invention concerne un arbre (24) comprenant un corps -(30) cylindrique dont la surface externe comporte au moins une cavité (32) contenant une enveloppe (36) élastique qui peut être connectée à une source de fluide sous pression; une pluralité de premiers éléments (38) annulaires placés de manière coaxiale sur la longueur du corps (30); une pluralité de seconds éléments (40) annulaires disposés sur la longueur du corps (30), coaxiaux aux premiers éléments (38) annulaires et disposés radialement à l'extérieur de ces derniers. Au moins un logement est formé entre au moins un des seconds (40) et un des premiers (38) éléments annulaires. Ce logement reçoit un élément (52) d'engagement capable de saillir radialement de la surface externe du second élément (40) annulaire lors de la rotation relative du premier élément (38) annulaire par rapport au second élément (40) annulaire, et d'appliquer ainsi une pression locale à la surface interne opposée de l'un des rouleaux de support (26) autour desquels sont enroulées les sections coupées.
PCT/EP1998/004262 1997-07-11 1998-07-09 Arbre ameliore destine a supporter les sections coupees d'un rouleau dans un dispositif de coupe et d'embobinage Ceased WO1999002442A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97TO000627A IT1293442B1 (it) 1997-07-11 1997-07-11 Albero perfezionato per il sopporto di sezioni tagliate di bobina in una macchina taglia-bobinatrice.
ITTO97A000627 1997-07-11

Publications (1)

Publication Number Publication Date
WO1999002442A1 true WO1999002442A1 (fr) 1999-01-21

Family

ID=11415863

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/004262 Ceased WO1999002442A1 (fr) 1997-07-11 1998-07-09 Arbre ameliore destine a supporter les sections coupees d'un rouleau dans un dispositif de coupe et d'embobinage

Country Status (2)

Country Link
IT (1) IT1293442B1 (fr)
WO (1) WO1999002442A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001005694A1 (fr) * 1999-07-16 2001-01-25 Ashe Controls Limited Mandrin pour machine a rembobiner
EP1316524A1 (fr) * 2001-11-30 2003-06-04 Hans Heuser Arbre d'enroulement avec accouplement à friction
US20130200203A1 (en) * 2012-02-08 2013-08-08 Sonoco Development, Inc. Paperboard Core Spindle Support for Yarn Packages
WO2021089032A1 (fr) 2019-11-09 2021-05-14 上海赛默罗生物科技有限公司 Dérivé de dihydroimidazopyrimidone tricyclique, son procédé de préparation, composition pharmaceutique et son utilisation
WO2022233302A1 (fr) 2021-05-07 2022-11-10 上海赛默罗生物科技有限公司 Dérivé de pyrimidinone et son procédé de préparation, composition pharmaceutique et utilisation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2108751A5 (fr) * 1970-09-30 1972-05-19 Agfa Gevaert Nv
FR2592020A1 (fr) * 1985-12-24 1987-06-26 Kataoka Hiroshi Arbre enrouleur pour refendeuse-enrouleuse
DE3918863A1 (de) * 1989-06-09 1990-12-13 Stahlkontor Maschinenbau Wickelwelle
EP0429876A2 (fr) * 1989-11-02 1991-06-05 F & A s.n.c., di Franchetti Giuseppe e C. Arbre de support de bobines avec anneau excentrique
DE4244218C1 (de) * 1992-12-24 1994-04-07 Hans Heuser Friktionswickelwelle
GB2300460A (en) * 1995-05-03 1996-11-06 Kampf Gmbh & Co Maschf Friction coupled core support device
EP0767130A1 (fr) * 1995-10-05 1997-04-09 Miglietta, Maurizio Arbre pour supporter des sections de rouleau coupées dans une machine de découpage-enroulement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2108751A5 (fr) * 1970-09-30 1972-05-19 Agfa Gevaert Nv
FR2592020A1 (fr) * 1985-12-24 1987-06-26 Kataoka Hiroshi Arbre enrouleur pour refendeuse-enrouleuse
DE3918863A1 (de) * 1989-06-09 1990-12-13 Stahlkontor Maschinenbau Wickelwelle
EP0429876A2 (fr) * 1989-11-02 1991-06-05 F & A s.n.c., di Franchetti Giuseppe e C. Arbre de support de bobines avec anneau excentrique
DE4244218C1 (de) * 1992-12-24 1994-04-07 Hans Heuser Friktionswickelwelle
GB2300460A (en) * 1995-05-03 1996-11-06 Kampf Gmbh & Co Maschf Friction coupled core support device
EP0767130A1 (fr) * 1995-10-05 1997-04-09 Miglietta, Maurizio Arbre pour supporter des sections de rouleau coupées dans une machine de découpage-enroulement

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001005694A1 (fr) * 1999-07-16 2001-01-25 Ashe Controls Limited Mandrin pour machine a rembobiner
US6712308B1 (en) 1999-07-16 2004-03-30 Ashe Controls, Ltd. Chuck for a winding apparatus
EP1316524A1 (fr) * 2001-11-30 2003-06-04 Hans Heuser Arbre d'enroulement avec accouplement à friction
US20130200203A1 (en) * 2012-02-08 2013-08-08 Sonoco Development, Inc. Paperboard Core Spindle Support for Yarn Packages
US9073729B2 (en) * 2012-02-08 2015-07-07 Sonoco Development, Inc. Paperboard core spindle support for yarn packages
WO2021089032A1 (fr) 2019-11-09 2021-05-14 上海赛默罗生物科技有限公司 Dérivé de dihydroimidazopyrimidone tricyclique, son procédé de préparation, composition pharmaceutique et son utilisation
WO2022233302A1 (fr) 2021-05-07 2022-11-10 上海赛默罗生物科技有限公司 Dérivé de pyrimidinone et son procédé de préparation, composition pharmaceutique et utilisation

Also Published As

Publication number Publication date
ITTO970627A1 (it) 1999-01-11
IT1293442B1 (it) 1999-03-01

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