US3658274A - Rotatable mandrel - Google Patents

Rotatable mandrel Download PDF

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Publication number
US3658274A
US3658274A US3740A US3658274DA US3658274A US 3658274 A US3658274 A US 3658274A US 3740 A US3740 A US 3740A US 3658274D A US3658274D A US 3658274DA US 3658274 A US3658274 A US 3658274A
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US
United States
Prior art keywords
segments
mandrel
arbor
moving
wedge
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
US3740A
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English (en)
Inventor
James Richard Adair
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.)
UNITED ENGINEERING AND FONNDRY
UNITED ENGINEERING AND FONNDRY Co
United Engineering Inc
Original Assignee
UNITED ENGINEERING AND FONNDRY
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 UNITED ENGINEERING AND FONNDRY filed Critical UNITED ENGINEERING AND FONNDRY
Application granted granted Critical
Publication of US3658274A publication Critical patent/US3658274A/en
Assigned to WEAN UNITED, INC. reassignment WEAN UNITED, INC. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). TO RELEASE SECURTIY DOCUMENT RECORDED AT REEL, FRAME 4792/307 RECORDED FEB. 26, 1987 Assignors: PITTSBURGH NATIONAL BANK
Assigned to UNITED ENGINEERING ROLLING MILLS, INC. reassignment UNITED ENGINEERING ROLLING MILLS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WEAN INCORPORATED
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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/28—Drums or other coil-holders
    • B21C47/30—Drums or other coil-holders expansible or contractible

Definitions

  • This disclosure relates to a mandrel for coiling strip as U-S- roduced a hot rolling
  • the mandrel includes a rota l lift; Cl 75/18 ble arbor on which a plurality of outer segments are carried.
  • a piston cylinder assembly moves the rod and, hence, the segments into three [56] References C'ted radial positions.
  • vvedges are arranged at the opposite ends of the segments which are engaged by axially OBI'lEl'l movable rings which carry omplementary wedges and which 2,94 1 l Perl'ine r are connected to the fod 3,379,389 4/l968 OKeefe ..242/72.l 3,456,893 7/1969 Michelson 242/721 5 Claims, 5 Drawing Figures P'ATENTEU APR 2 5 1522 I saw 1 BF 3 i ww H I I 1 NM Q R Q RATENTEUAPMS 1972 3, 658 2T4 sum 2 BF 3 //V 7' ERMED/A TE FUL L y EXPANDED EXPANDED INVENTOR. JAMES 4014 PATENTEDAPR 25 I972 3.658 274 SHEET 3 BF 3 INVENTOR. JAMES R. ADA/R B
  • the coiler In the operation of a hot strip rolling mill, it is customary to provide a coiler for coiling the strip as it leaves the mill.
  • the coiler includes a rotatable mandrel which is adapted to be expanded to receive the leading end of the strip and, after a coil is formed, to be collapsed to allow the coil to be removed from the mandrel.
  • the coils are wound under tension as a result of the differential speed between the last mill stand and the mandrel, in which it is highly desirable to create the tension on the strip as quickly as possible. When rolling and coiling thin strip, this can be done after only a few convolutions have been wrapped around the mandrel.
  • an object of the present invention to provide a mandrel wherein the segments thereof can be efficiently and effectively held in several different radial positions during the operation of the mandrel.
  • FIG. la is a longitudinal sectional view of the drive side of a hot strip coiler mandrel
  • FIG. lb is a longitudinal sectional view of the operating side ofthe mandrel illustrated in FIG. la,
  • FIG. 2 is a sectional view taken on lines II-II of FIG. lb,
  • FIG. 3 is an enlarged'sectional view of a portion of thedrive side of the mandrel shown in FIG. la illustrating the adjustable wedge assembly at this side of the mandrel, and
  • FIG. 4 is an enlarged sectional view of a portion of the operating side'of the mandrel shown in FIG. lb illustrating the adjustable wedge assembly at the operating side of the mandrel.
  • FIG. lb there is shown a longitudinally extending arbor 11 which, at the inboard end, is rotatably received in bearings 12 carried in a stationary frame 13 which also houses the gear drive that drives the arbor.
  • the arbor 11 extends towards the left, as one views FIG. lb, and constitutes the inner portion of the mandrel assembly, as can be better seen in referring to FIG. 2.
  • the arbor 11 at its central portion is provided with an axially extending opening in which there is received an actuating rod 14 which,
  • each wedge portion 15 in the mandrel section, is provided with a number of wedge portions 15 spaced axially along the rod 14, as one views FIG. lb.
  • a radially extending plunger 16 In engagement with each wedge portion 15 there is a radially extending plunger 16 having, as shown in FIG. 2, a flat surface which complements the flat surface of the wedge portion 15 so that on displacement axially of the rod 14 the plungers, by reason of the wedge action, are displaced radially relative to the arbor 11.
  • the outer portion of the mandrel is made up of four interfitted segments 17 having inward projections 18 that fit into channels 19 formed in the arbor 11 in such a manner that the segments are displaceable within the channels 19 in radial directions, but are prevented from moving outward beyond the point defined by projecting portions 21 of the arbor.
  • the plungers l6 engage the inner portion of the projections 18 of the segments, by which means the segments are moved radially relative to the arbor I 1.
  • the segments 17 have stepped portions 22 which, while not shown specifically in the drawing, are indented with respect to the normal width of the segments.
  • the portions 22 of the segments 17 there are secured wedge members 23 having their inclines decreasing in a direction towards the arbor 11.
  • each wedge member 23 shows an enlargement of each wedge member 23, in which connection it will be noted that in engagement with each wedge member 23 is a disk 24 arranged at an angle complementary to the incline ofthe wedge member 23, which angle is defined by the angular adjacent portion 25 of a ring 26.
  • the portions 25 have openings 27 into which there are received threaded lock screws 28 that engage belleville springs 29 which are received between the lower ends of the screws 28 and the inner surfaces of the disks 24.
  • the springs 29 retain the disks 24 in positive engagement with the wedge members 23, yet allow some displacement, such as may be necessary because of thermal expansion and other alignment factors.
  • the ring 26 forms a part of a vertical member 31 located at the extreme outer end ofthe mandrel.
  • the vertical member of the ring is secured to the actuating rod 14 by a nut 32 so that on movement of the rod the member 31 is displaced, as illustrated in phantom in FIG. lb, which accordingly will displace the wedge disks 24 relative to the wedge members 23.
  • the segments 17 in this region are formed with integral wedge portions 33 and which, as in the case of the portions 22, are of a narrower width than the segments themselves.
  • Each wedge portion 33 is engaged by a wedge disk 34 having a slope complementary to the slope ofthe wedge 33 as formed by the angle of inclination of portion 35 of a ring 36.
  • the portions 35 receive threaded screws 37, the lower ends of which engage belleville springs 38 arranged between the screws 37 and the inner surfaces of the wedge disks 34.
  • rods 41 there are arranged four rods 41, the outer ends of which are connected by bolts 42 to the vertical portion 31 of the front ring 26, the opposite end of which is connected to the back ring 36, the connection at the back, as best shown in FIG. 4, being effected through an ear 43 having a nut 44 that connects the end of the rods to the ring 36.
  • the segments 17 are connected to the arbor 11 in a manner to hold them against thermal expansion towards the drive side by providing keys 45.
  • the key construction is such that the segments are free to move radially and are free to expand thermally in a direction towards the operators side where there is provided sufficient clearance between the portion 22 of the segments and the vertical portion 31 of the ring 26. This is in view of the fact that the mandrel being discussed is designed to handle hot strip issuing from a rolling mill, which presents the need to consider the thermal expansion of the various parts.
  • FIG. 1 In now describing the expanding mechanism for the mandrel which is illustrated in FIG. In, it consists essentially ofthe rotating piston cylinder assembly that causes the three movements of the actuating rod 14 and, hence, of the segments 17. As previously noted, it is a feature ofthe illustrated mandrel to present the segments 17 in a collapsed position, in an intermediate position and in a fully expanded position, which positions are in legend in FIG. 2. This is accomplished by providing a double piston cylinder assembly and, as noted previously, the relationship of the mandrel parts is shown in the fully expanded position, in which position the piston cylinder assembly is similarly shown. As illustrated in FIG.
  • piston cylinder assembly 47 which consists of two relatively movable pistons 48 and 49 received in stepped bores 51 and 52, respectively.
  • the arrangement is such as to provide pressure chambers, which are best illustrated by referring to their fluid ports, namely, 53, 54, and 55.
  • the piston cylinder assembly includes a stop surface 56 formed in the inner back wall, a stop surface 57 formed at the center, and a stop surface 58 formed at the front of the cylinder at the inner wall thereof.
  • the mandrel will be held positively in its intermediate position.
  • the pressure is exhausted from the port 53 and the port 54, but admitted to the port 55. This will have the effect of forcing the piston 49 against the piston 48 and moving both pistons until the piston 48 contacts the surface 56. With this movement the actuating rod 14 will also move.
  • a rotatable mandrel for handling strip-like material comprising:
  • said segment determining means including wedge means complementary to said wedge means of said means for moving said segments and being mechanically synchronized in relation to said means for moving said segments to provide a positive resistance for the segments in a number of different radial positions.
  • a wedge assembly having inclined surfaces for each segment arranged between the rod and said segments and intermediate the ends ofthe segments.
  • a rotatable mandrel in accordance with claim 1 including a pair of rings, and wherein said complementary wedge means at the opposite ends of the mandrel are carried by a different one of said separate rings,
  • a rotatable mandrel in accordance with claim 4 including a number of rods in which said rings are connected together by a rod for each segment arranged to pass between said arbor and said segments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Winding Of Webs (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US3740A 1970-01-19 1970-01-19 Rotatable mandrel Expired - Lifetime US3658274A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US374070A 1970-01-19 1970-01-19

Publications (1)

Publication Number Publication Date
US3658274A true US3658274A (en) 1972-04-25

Family

ID=21707355

Family Applications (1)

Application Number Title Priority Date Filing Date
US3740A Expired - Lifetime US3658274A (en) 1970-01-19 1970-01-19 Rotatable mandrel

Country Status (8)

Country Link
US (1) US3658274A (enExample)
JP (1) JPS4840185B1 (enExample)
BE (1) BE761679A (enExample)
CA (1) CA937075A (enExample)
DE (1) DE2101145A1 (enExample)
ES (1) ES194619Y (enExample)
FR (1) FR2083021A5 (enExample)
GB (1) GB1267639A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993317A (en) * 1974-12-12 1976-11-23 Double E Company, Inc. Core chuck
US4107969A (en) * 1976-05-15 1978-08-22 Sumitomo Metal Industries, Ltd. Hot strip coiling mandrel
WO2020003182A1 (en) 2018-06-28 2020-01-02 Danieli & C. Officine Meccaniche S.P.A. Coiling mandrel and relative procedure for monitoring the condition thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3939119A1 (de) * 1989-09-04 1991-03-07 Schloemann Siemag Ag Haspel fuer walzband

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941745A (en) * 1956-10-10 1960-06-21 Wean Engineering Co Inc Reel for strip material
US3379389A (en) * 1965-12-29 1968-04-23 United Eng Foundry Co Tension reel
US3443770A (en) * 1966-11-17 1969-05-13 United Eng Foundry Co Expandable mandrel
US3456893A (en) * 1967-12-15 1969-07-22 Bliss Co Expanding mandrel assembly
US3489363A (en) * 1967-07-17 1970-01-13 Spidem Ste Nle Expandable mandrel
US3552673A (en) * 1969-04-09 1971-01-05 William J Evers Expanding chuck

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941745A (en) * 1956-10-10 1960-06-21 Wean Engineering Co Inc Reel for strip material
US3379389A (en) * 1965-12-29 1968-04-23 United Eng Foundry Co Tension reel
US3443770A (en) * 1966-11-17 1969-05-13 United Eng Foundry Co Expandable mandrel
US3489363A (en) * 1967-07-17 1970-01-13 Spidem Ste Nle Expandable mandrel
US3456893A (en) * 1967-12-15 1969-07-22 Bliss Co Expanding mandrel assembly
US3552673A (en) * 1969-04-09 1971-01-05 William J Evers Expanding chuck

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993317A (en) * 1974-12-12 1976-11-23 Double E Company, Inc. Core chuck
US4107969A (en) * 1976-05-15 1978-08-22 Sumitomo Metal Industries, Ltd. Hot strip coiling mandrel
WO2020003182A1 (en) 2018-06-28 2020-01-02 Danieli & C. Officine Meccaniche S.P.A. Coiling mandrel and relative procedure for monitoring the condition thereof

Also Published As

Publication number Publication date
ES194619Y (es) 1975-05-01
CA937075A (en) 1973-11-20
DE2101145A1 (de) 1971-09-09
BE761679A (fr) 1971-07-19
GB1267639A (en) 1972-03-22
FR2083021A5 (enExample) 1971-12-10
JPS4840185B1 (enExample) 1973-11-29
ES194619U (es) 1975-01-01

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AS Assignment

Owner name: PITTSBURGH NATIONAL BANK

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP.OF OH;REEL/FRAME:004458/0765

Effective date: 19850610

AS Assignment

Owner name: PITTSBURGH NATIONAL BANK,PENNSYLVANIA

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307

Effective date: 19860630

Owner name: PITTSBURGH NATIONAL BANK

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307

Effective date: 19860630

AS Assignment

Owner name: WEAN UNITED, INC.

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:PITTSBURGH NATIONAL BANK;REEL/FRAME:004925/0218

Effective date: 19880509

AS Assignment

Owner name: UNITED ENGINEERING ROLLING MILLS, INC.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WEAN INCORPORATED;REEL/FRAME:004920/0256

Effective date: 19880610