US3539128A - Detachable mandrel shaft for winders and unwinders - Google Patents

Detachable mandrel shaft for winders and unwinders Download PDF

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Publication number
US3539128A
US3539128A US755549A US3539128DA US3539128A US 3539128 A US3539128 A US 3539128A US 755549 A US755549 A US 755549A US 3539128D A US3539128D A US 3539128DA US 3539128 A US3539128 A US 3539128A
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US
United States
Prior art keywords
shaft
mandrel
members
jaws
unwinders
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
US755549A
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English (en)
Inventor
Louis Jean Chambon
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.)
D'etudes De Machines Speciales Sa soc
Mach Speciales SA Soc D Et
Original Assignee
Mach Speciales SA Soc D Et
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 Mach Speciales SA Soc D Et filed Critical Mach Speciales SA Soc D Et
Application granted granted Critical
Publication of US3539128A publication Critical patent/US3539128A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • a mandrel comprising a hollow cylindrical body formed with opening in which locking jaws are adapted to slide radially for locking engagement with the inner cylindrical wall of the mandrel, the movements of said jaws being controlled in the locking direction by a control rod mounted for rotation but held against axial movement in said hollow cylindrical body and provided with end means for causing this rotation, another hollow cylindrical member adapted to slide axially in said body being provided with frustoconical outer surface means adapted to engage the inner surface of said locking jaws and also with splined end portions adapted in their outer position to act as trunnions to said shaft assembly, spring rings constantly urging said jaws towards the shaft axis.
  • the present invention relates to a detachable mandrel-supporting shaft for winding and unwinding devices and has specific reference to a shaft adapted to be releasably con nected to a mandrel on which a spool of a web material, for
  • a paper web is formed or to be formed.
  • This invention is concerned with a mandrel shaft designed more specially for carrying out these operations.
  • the invention has primarily for its object to provide a detachable mandrel-supporting shaft for winding and unwinding devices, which is adapted to be engaged in a hollow central mandrel-on which the spool of web material is formed or to be formed, and which permits to simultaneously release the shaft from the mandrel and the shaft from its supporting bearings in a single operation.
  • the detachable mandrel-supporting shaft comprises therein end trunnion members solid with wedge-shaped members in order to cause jaws to emerge or be retracted with respect to the outer peripheral surface of the shaft, and concurrently causing said end trunnion members to slide between an inward or retracted position within said shaft and an outward position in which said end trunnion members are used to rotatably support the shaft.
  • the axial sliding movement of said pair of wedge-shaped members and of said end members rigid therewith is obtained by providing a coaxial control rod rotatably mounted within the shaft body and extending throughout the shaft length, said rod comprising two screw-threaded portions having opposite pitches and a pair of nuts engaging said screw-threaded portions, respectively, and each rigid with one of said wedgeshaped members, respectively.
  • the aforesaid central control rod comprises at either end a head adapted to be rotatably driven by means of a suitable tool whereby a rotation of said rod in one direction is attended by the outward movement of said locking jaws and of said end members, and in the opposite direction by the inward movement of said jaws end members.
  • FIG. I is an axial fragmentary section showing one-halfof a mandrel-supporting shaft according to this invention, the locking jaws and the end members being shown in their outermost positions;
  • FIG. 2 is an axial section similar to FIG. 1 but showing the locking jaws and the end members in their innermost or retracted positions and,
  • FIG. 3 is a cross section taken along the line III-III of FIG. 1.
  • the mandrel-supporting shaft of which only the left-hand i.e. the portion extending on the left-hand side of its transverse median plane x-y is shown in the drawing comprises essentially a hollow body 1 consisting of a plurality of assembled sections, Le. a central sleeve 2, an intermediate cylinder 3 and an end sleeve 4. These elements 2, 3 and 4 are assembled by mutual engagement of screw-threaded portions 5 and 6.
  • each opening or slot 7 has slidably mounted for radial movement therein a locking jaw 8 of substantially parallelipipedic configuration having its outer surface formed with longitudinal ribs or like projections 9 adapted, when it is desired to lock the shaft in relation to the mandrel, to engage with force the inner surface of the hollow mandrel 1 1, for example a cardboard mandrel shown only diagrammatically in dash-and-dot lines.
  • the longitudinal sliding member 12 controlling the outward and inward movements of the locking jaws 8 consists of a hollow, substantially cylindrical member having its outer surface formed with two axially spaced frustoconical or tapered portions 12a and 12b acting as wedges. These frustoconical portions 12a and 12b are adapted to co-act with portions 8a and 8b, having the same angular inclination, formed on the inner surface of the aforesaid locking jaws 8.
  • the sliding member 12 is provided, at its end registering throughout the shaft length.
  • This screw rod rotatably mounted in a bearing-not shown-housed in the central sleeve 2 is held against axialmovement by a suitable thrust bearing 22.
  • the rod 21 On the other side of said median transverse plane x-y the rod 21 comprises another screw-threaded portion of a pitch opposite to that of portion 19, this other threaded portion receiving a nut rigid with the other sliding member disposed symmetrically in relation to sliding member 12.
  • control rod 21 At its outer end the control rod 21 carries a square head 23 permitting its operation by means of a suitable tool or spanner.
  • the central sliding member 12 is completed at its outer end by an'end member 24 formed with an outer splines 25.
  • the sliding member 12 is caused to perform a movement of translation to the right whereby, due to the movement of the frustoconical portions 12a and 12b in the same direction, the locking jaws 8 are released and moved inwards of the shaft body 1 by the action of return springs 13.
  • a detachable mandrel-supporting shaft for supporting a hollow mandrel on which a spool of web material is formed or to be formed comprising: a hollow cylindrical body, means defining openings in a wall of said hollow cylindrical body, locking jaws mounted for radial movement in said openings, first and second wedge-shaped members disposed symmetrically in relation to a median transverse plane of said shaft resilient means constantly urging said jaws against said wedgeshaped members, means mounting said first and second wedge-shaped members for axial movement interiorly of said body and in sliding contact with respective ones of said locking jaws, first and second end trunnion members rigid with respective ones of said first and second wedge-shaped members and movable therewith.

Landscapes

  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Winding Of Webs (AREA)
US755549A 1967-09-01 1968-08-27 Detachable mandrel shaft for winders and unwinders Expired - Lifetime US3539128A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR119715A FR1547550A (fr) 1967-09-01 1967-09-01 Arbre porte-mandrin amovible pour enrouleurs et dérouleurs

Publications (1)

Publication Number Publication Date
US3539128A true US3539128A (en) 1970-11-10

Family

ID=8637659

Family Applications (1)

Application Number Title Priority Date Filing Date
US755549A Expired - Lifetime US3539128A (en) 1967-09-01 1968-08-27 Detachable mandrel shaft for winders and unwinders

Country Status (9)

Country Link
US (1) US3539128A (xx)
BE (1) BE719731A (xx)
DE (1) DE1774722B1 (xx)
DK (1) DK117810B (xx)
FR (1) FR1547550A (xx)
GB (1) GB1184405A (xx)
LU (1) LU56738A1 (xx)
NL (1) NL6812383A (xx)
SE (1) SE340735B (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141517A (en) * 1978-03-22 1979-02-27 Martin Automatic, Inc. Apparatus for adjusting the lateral position of a rolled web
US20120322154A1 (en) * 2011-06-15 2012-12-20 Korea Institute Of Machinery & Materials Apparatus and method for manufacturing cell culture scaffold
CN113914171A (zh) * 2021-11-12 2022-01-11 山西路桥集团隰吉高速公路有限公司 高速公路施工路基路面压实装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8634752U1 (de) * 1986-12-27 1987-02-26 Tidland Gmbh, 4422 Ahaus Spannwelle
EP0703180B1 (de) * 1994-09-21 1999-08-04 Koenig & Bauer Aktiengesellschaft Tragzapfen zum Festklemmen von auf Hülsen gewickelten Papierbahnen
DE10344381A1 (de) 2003-09-23 2005-05-04 Hauni Maschinenbau Ag Fördertrommel mit Spanneinrichtung
TWI680093B (zh) * 2019-06-19 2019-12-21 萬潤科技股份有限公司 捲收機構之輪架及其拆卸方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE734397C (de) * 1939-11-09 1943-04-15 Krupp Fried Grusonwerk Ag Aufwickelvorrichtung fuer bandfoermiges Walzgut
US2591730A (en) * 1950-01-30 1952-04-08 Armzen Company Inc Collapsible tension-winder or reel for strip material
NL286492A (xx) * 1961-08-05
DE1901271U (de) * 1963-07-19 1964-09-24 Richard Nicolaus Spannachse fuer rollen-schneide- und wickelmaschinen.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141517A (en) * 1978-03-22 1979-02-27 Martin Automatic, Inc. Apparatus for adjusting the lateral position of a rolled web
US20120322154A1 (en) * 2011-06-15 2012-12-20 Korea Institute Of Machinery & Materials Apparatus and method for manufacturing cell culture scaffold
US9126366B2 (en) * 2011-06-15 2015-09-08 Korea Institute Of Machinery & Materials Apparatus and method for manufacturing cell culture scaffold
CN113914171A (zh) * 2021-11-12 2022-01-11 山西路桥集团隰吉高速公路有限公司 高速公路施工路基路面压实装置
CN113914171B (zh) * 2021-11-12 2022-12-13 山西路桥集团隰吉高速公路有限公司 高速公路施工路基路面压实装置

Also Published As

Publication number Publication date
BE719731A (xx) 1969-02-03
LU56738A1 (xx) 1968-11-21
NL6812383A (xx) 1969-03-04
GB1184405A (en) 1970-03-18
DE1774722B1 (de) 1971-08-26
DK117810B (da) 1970-06-01
FR1547550A (fr) 1968-11-29
SE340735B (xx) 1971-11-29

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