US3704837A - Chucking arrangement for hollow cores, particularly for newsprint rolls and the like - Google Patents

Chucking arrangement for hollow cores, particularly for newsprint rolls and the like Download PDF

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Publication number
US3704837A
US3704837A US163580A US3704837DA US3704837A US 3704837 A US3704837 A US 3704837A US 163580 A US163580 A US 163580A US 3704837D A US3704837D A US 3704837DA US 3704837 A US3704837 A US 3704837A
Authority
US
United States
Prior art keywords
jaws
chucking
core
inclination
conical
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
US163580A
Other languages
English (en)
Inventor
Hubert Heinz
Gunter Honsberg
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg AG
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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Application granted granted Critical
Publication of US3704837A publication Critical patent/US3704837A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/40—Expansion mandrels
    • B23B31/404—Gripping the work or tool by jaws moving radially controlled by conical surfaces
    • B23B31/4046—Details of the jaws
    • 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
    • B65H75/248—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction
    • B65H75/2484—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction movable actuator including wedge-like or lobed member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/10—Expanding
    • Y10T279/1037—Axially moving actuator
    • Y10T279/1041—Wedge
    • Y10T279/1045—Internal cone
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/10—Expanding
    • Y10T279/1037—Axially moving actuator
    • Y10T279/1041—Wedge
    • Y10T279/1054—Wedge with resilient means contacting nonresilient jaw
    • Y10T279/1058—Constricting band, annulus, or clip

Definitions

  • a mandrel has a conical chucking head on which chucking jawsare located, the conical head having a predetermined angle of inclination; the interior surfaces of the chucking jaws have three internally inclined, successive surfaces of inclination, the third and the first matching the angle of inclination of the chucking head whereas the middle one has a lesser inclination; the inner and the middle angles are joined by an offset, the chucking head having a matching shoulder.
  • the outer surfaces of the jaws are cylindrical.
  • the present invention relates to a chucking arrangement or apparatus to mount hollow cores adapted to hold rolls of material thereon, and more particularly core sleeves for newsprint, paper, carton and the like, which may be of substantial weight, in the order of tons; for example, rolls of paper may weigh 1% tons, have a core length of about Im; the interior diameter of the core itself may be in the order of about to cm.
  • Chucking arrangements have been proposed in which jaws are arranged which can spread, for example, by being swingably mounted on pivot points. Such arrangements have the disadvantage that when the core diameter varies from a set standard value the cylindrical outer surfaces of the jaws do not properly bear against the inner surface of the core itself. it has also been suggested to spread the jaws over conical surfaces in axial direction rather than swinging them over pivot points so that, upon spreading, they will self-adjust to the interior surface of the core sleeve. Movement of the jaws is usually obtained by means of a thread. Operating the thread requires an additional step in mounting the core after the chucking heads have been introduced into the core sleeve.
  • the thread itself cannot be readjusted during movement of the roll, so that re-adjustment requires stopping of the roll and the apparatus with which it may cooperate. It may, however, be necessary to re-adjust the chucking arrangement, particularly if the core sleeve deforms under loading.
  • a mandrel having a conical chucking head in which the cone has a predetermined angle of inclination.
  • Chucking jaws are provided surrounding the cone of the chucking head and adapted to be spread apart upon axial shifting of the conical chucking head.
  • the chucking jaws have a cylindrical outer surface which corresponds substantially to the nominal diameter of the interior opening of the core with which the chucking arrangement is to be used.
  • a radially extending rim is provided thereon, adapted to engage the end surface of the core.
  • the inner surfaces of the chucking jaws are formed with three axially sequentially arranged conical surfaces.
  • the outer conical surfaces have an angle of inclination which matches that of the predetermined angle of the cone mandrel; the middle one, however, has a lesser inclination than the other two and at the junction between the middle one and the inner one of the surfaces an offset is formed, which matches against a corresponding shoulder formed in the mandrel.
  • the arrangement preferably utilizes four jaws for each chucking head.
  • the jaws are preferably pressed elastically against the mandrel at their ends, for example by springs, which may be circular springs located in grooves cut into the jaws.
  • the surfaces engaging the core sleeves are preferably knurled, or these surfaces can have a lining of material thereon which provides a friction contact and prevents slipping between the core sleeve and the jaws.
  • the middle conical surfaces of the jaws match with the conical surfaces of the mandrel and the offset on the jaws engages the shoulder on the conical mandrel. Due to the lesser inclination of the middle jaw surface, the jaws will be folded together to form an essentially conical outer surface.
  • This conical outer surface provides for ease of introduction of the collapsed chuckinghead without requiring exact centering thereof. If one of the jaws should contact the sleeve, it still cannot be shifted in location since the inner-engaging offset and shoulder will hold the jaw in position on the mandrel.
  • the chucking heads are preferably moved together by means of a pneumatic cylinder.
  • the pressure on the cylinder is maintained during the winding, or reeling, process. If the core sleeve should deform, for example, due to excessive loading, then the chucking heads can be pressed more tightly against each other, thereby increasing the effective outer diameter of the chucking heads located about the conical mandrel. Automatic r e-adjustment of the position of the jaws is thus possible without stopping the winding or rolling operation.
  • FIG. 1 is a part sectional longitudinal view through a chucking head on a mandrel, before being placed on the load, or engaging a core sleeve;
  • FIG. 2 is a view similar to FIG. 1 in which a chucking head is introduced into the core.
  • a mandrel l is secured to the end of a shaft, surrounded by four jaws 2 which are pulled to the position shown in FIG. 1 by means of springs 3, 4 located at the ends of the jaws.
  • the mandrel l is formed with a conical surface 9, one for each of the jaws 2.
  • the inside of the jaws is arranged with conical surfaces 5, 7 having an angle of inclination which matches the inclination of the conical surface 9 of mandrel 1, when the outer surfaces 14 (FIG. 2) of the jaws 2 are cylindrically engaging the inner surface of the core sleeve 16.
  • the center portion of the inner surfaces of the jaws 2 is formed with a conical surface 6 having an inclination which is less than that of the surfaces and 7.
  • An offset 8 (FIG.
  • the outer surface 14, which is cylindrical, as well as the outer edge 15 on the jaws, is preferably knurled, or formed with a high friction lining or surface treatment.
  • the jaws breaks the inter-engagement of offset 8 and shoulder 10 on the jaws and mandrel respectively, and as the chucking head is further introduced into the core sleeve, the jaws 2 will slide outwardly on the surface 9 of the cone 1. The jaws simultaneously press uniformly against the inner surface of core sleeve 16. When the chucking arrangement is stressed and completely introduced, then conical surface 5 as well as conical surface 7 of the jaws will engage the surface 9 of the mandrel 1.
  • the chucking arrangement in accordance with the present invention permits easy introduction of the chucks into the core sleeve and provides for uniform transfer of torque from a shaft on which the shaft is located to the core sleeve; it can be used without difficulties in core sleeves in which, due to loading, the core sleeve is out-of-round.
  • core sleeves are usually made of spirally wrapped cardboard carton material.
  • Axial pressure is best provided-by means of a pressure cylinder-piston arrangement P (FIG. 2), which is preferably pneumatic, but may be hydraulic.
  • a thrust bearing T is interposed betweenthe pressure applying device to permit rotation to be imparted to the shaft on which the mandrel is located independently of axial thrust.
  • the force supplied by the cylinder-piston arrangement and by the thrust bearing T is schematically indicated as arrow F in FIG. 2; the motion from the cylinder-piston arrangement can be mechanically or automatically controlled and is preferably reversible to provide for power advance and retraction, after the material from the roll wound on the core sleeve 16 has been removed.
  • Chucking arrangement for cores (16) adapted to hold rolls of material thereon comprising a mandrel having a conical chucking head (9) formed with a pre-determined angle of inclination;
  • the chucking jaws (2) surrounding the chucking head and adapted to be spread apart upon axial shifting of the conical chucking head; the chucking jaws (2) having a cylindrical outer surface (14) corresponding substantially to the nominal diameter of the inner opening of the core with which the chucking arrangement is to be used, and a radially extending rim (15 adapted to engage the end surface of the core (16);
  • the inner surfaces of the chucking jaws being formed with three axially sequentially arranged conical surfaces (5, 6, 7), the outer ones (5, 7) having an angle of inclination of said pre-determined angle and the middle one (6) having a lesser inclination than the other two; an offset (8) separating the middle one (6) of the conical surfaces from the innermost conical surface (7);

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Making Paper Articles (AREA)
  • Unwinding Webs (AREA)
US163580A 1970-07-30 1971-07-19 Chucking arrangement for hollow cores, particularly for newsprint rolls and the like Expired - Lifetime US3704837A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7028636U DE7028636U (de) 1970-07-30 1970-07-30 Einspannvorrichtung fuer eine wickelhuelse.

Publications (1)

Publication Number Publication Date
US3704837A true US3704837A (en) 1972-12-05

Family

ID=6613390

Family Applications (1)

Application Number Title Priority Date Filing Date
US163580A Expired - Lifetime US3704837A (en) 1970-07-30 1971-07-19 Chucking arrangement for hollow cores, particularly for newsprint rolls and the like

Country Status (7)

Country Link
US (1) US3704837A (de)
CH (1) CH535709A (de)
DE (1) DE7028636U (de)
FR (1) FR2103801A5 (de)
GB (1) GB1354380A (de)
IT (1) IT939335B (de)
SE (1) SE370533B (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148444A (en) * 1978-04-08 1979-04-10 Jagenberg Werke Ag Gripping chuck for spools
EP0164003A1 (de) * 1982-05-26 1985-12-11 Norcros Investments Limited Bandrollenhalter
US4564151A (en) * 1984-06-04 1986-01-14 Essex Group, Inc. Core latch chuck assembly
US4571233A (en) * 1984-01-06 1986-02-18 Paper Machinery Corporation Paper container bottom expander
US4759810A (en) * 1987-05-01 1988-07-26 Libbey-Owens-Ford Co. Method and apparatus for applying a gasket to an object
DE4122806A1 (de) * 1991-07-10 1993-01-14 Jagenberg Ag Vorrichtung zum wechseln von umfaenglich expandierenden spannkoepfen
US5281386A (en) * 1992-08-27 1994-01-25 James River Paper Company, Inc. Method for shaping the center hole of a coreless paper roll
US5439235A (en) * 1994-05-31 1995-08-08 Blackwell; William R. Apparatus for coupling concentric cylindrical members through the selective radial enlargement of one of the coupling components
US5628475A (en) * 1996-02-01 1997-05-13 Warnaar; Dirk B. Clamping arrangement for hollow objects with an end face
US20040004150A1 (en) * 2002-04-27 2004-01-08 W. Schalfhorst Ag & Co. Tube plate for a creel
US7410176B1 (en) 2005-08-19 2008-08-12 Pacmac, Inc. Core chuck with positive engagement
AU2005201610B2 (en) * 2004-04-23 2010-10-14 Altrum Pty Ltd Method and device for engaging a bore
CN104259500A (zh) * 2014-09-19 2015-01-07 无锡太博泵业有限公司 圆筒状工件加工用夹具
CN106115376A (zh) * 2016-08-13 2016-11-16 宋旭 变径轴
CN107263589A (zh) * 2017-06-26 2017-10-20 江苏恒神股份有限公司 碳纤维复合材料壳体加工工装
US20240217770A1 (en) * 2021-06-03 2024-07-04 Bobst Mex Sa Clamping device for supporting a reel having a tubular core

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323239A1 (de) * 1983-06-28 1985-01-24 Industriewerk Nachf. Seifert & Co Kg, 8632 Neustadt Vorrichtung zum anheben von coils, spulen oder dgl.
ES2039764T3 (es) * 1988-07-14 1993-10-01 Barmag Ag Instalacion de bobinado.
CN105499623B (zh) * 2015-11-27 2018-02-06 泸州远程工程机械有限公司 一种管材稳固与旋转装置
CN105328012B (zh) * 2015-11-27 2018-06-12 无锡工源机械有限公司 一种铜管冲孔设备的夹具
CN107161806A (zh) * 2017-06-09 2017-09-15 上海理工大学 绕线盘快速稳定装置
CN108296506B (zh) * 2018-04-28 2019-04-02 重庆鼎汉机械有限公司 用于零件加工的定位装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1411292A (en) * 1921-07-18 1922-04-04 Mueller Charles Robert Roll chuck
DE853905C (de) * 1948-10-02 1952-10-30 Jagenberg Werke Ag Spreizvorrichtung zur Befestigung von Huelsen oder Rollen aus Papier od. dgl.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1411292A (en) * 1921-07-18 1922-04-04 Mueller Charles Robert Roll chuck
DE853905C (de) * 1948-10-02 1952-10-30 Jagenberg Werke Ag Spreizvorrichtung zur Befestigung von Huelsen oder Rollen aus Papier od. dgl.

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148444A (en) * 1978-04-08 1979-04-10 Jagenberg Werke Ag Gripping chuck for spools
EP0164003A1 (de) * 1982-05-26 1985-12-11 Norcros Investments Limited Bandrollenhalter
US4571233A (en) * 1984-01-06 1986-02-18 Paper Machinery Corporation Paper container bottom expander
US4564151A (en) * 1984-06-04 1986-01-14 Essex Group, Inc. Core latch chuck assembly
US4759810A (en) * 1987-05-01 1988-07-26 Libbey-Owens-Ford Co. Method and apparatus for applying a gasket to an object
DE4122806A1 (de) * 1991-07-10 1993-01-14 Jagenberg Ag Vorrichtung zum wechseln von umfaenglich expandierenden spannkoepfen
US5281386A (en) * 1992-08-27 1994-01-25 James River Paper Company, Inc. Method for shaping the center hole of a coreless paper roll
US5439235A (en) * 1994-05-31 1995-08-08 Blackwell; William R. Apparatus for coupling concentric cylindrical members through the selective radial enlargement of one of the coupling components
US5628475A (en) * 1996-02-01 1997-05-13 Warnaar; Dirk B. Clamping arrangement for hollow objects with an end face
US20040004150A1 (en) * 2002-04-27 2004-01-08 W. Schalfhorst Ag & Co. Tube plate for a creel
US6889933B2 (en) * 2002-04-27 2005-05-10 W. Schlafhorst Ag & Co. Tube plate for a creel
AU2005201610B2 (en) * 2004-04-23 2010-10-14 Altrum Pty Ltd Method and device for engaging a bore
US7410176B1 (en) 2005-08-19 2008-08-12 Pacmac, Inc. Core chuck with positive engagement
CN104259500A (zh) * 2014-09-19 2015-01-07 无锡太博泵业有限公司 圆筒状工件加工用夹具
CN104259500B (zh) * 2014-09-19 2016-06-22 无锡太博泵业有限公司 圆筒状工件加工用夹具
CN106115376A (zh) * 2016-08-13 2016-11-16 宋旭 变径轴
CN107263589A (zh) * 2017-06-26 2017-10-20 江苏恒神股份有限公司 碳纤维复合材料壳体加工工装
US20240217770A1 (en) * 2021-06-03 2024-07-04 Bobst Mex Sa Clamping device for supporting a reel having a tubular core

Also Published As

Publication number Publication date
FR2103801A5 (de) 1972-04-14
IT939335B (it) 1973-02-10
CH535709A (de) 1973-04-15
DE7028636U (de) 1971-02-04
SE370533B (de) 1974-10-21
GB1354380A (en) 1974-06-05

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