GB920443A - Improvements relating to the punching of metal members such as sheets, joists or the like - Google Patents

Improvements relating to the punching of metal members such as sheets, joists or the like

Info

Publication number
GB920443A
GB920443A GB3267958A GB3267958A GB920443A GB 920443 A GB920443 A GB 920443A GB 3267958 A GB3267958 A GB 3267958A GB 3267958 A GB3267958 A GB 3267958A GB 920443 A GB920443 A GB 920443A
Authority
GB
United Kingdom
Prior art keywords
punches
rolls
punching
nip
joists
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
Application number
GB3267958A
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.)
AUSTEN ROBERT HIGGIN
Original Assignee
AUSTEN ROBERT HIGGIN
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 AUSTEN ROBERT HIGGIN filed Critical AUSTEN ROBERT HIGGIN
Priority to GB3267958A priority Critical patent/GB920443A/en
Publication of GB920443A publication Critical patent/GB920443A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/36—Perforating, i.e. punching holes using rotatable work or tool holders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

920,443. Punching. A. R. HIGGIN. Oct. 5, 1959 [Oct. 14, 1958], No. 32679/58. Class 83 (4). Holes 18 are punched in the webs 19 of rolled joists 16 between rolls 14, 15 having at least one punch 36a and a co-operating die 37 which effect the punching operation in the nip 17 between the rolls. Hexagonal holes 18 may be formed by rigid or (as shown) slidable punches. Formed of journals 23 connected by a ring 22, the rolls are connected by gears 24 for rotation on shafts 12, 13. Peripheral grooves 26 in the rolls receive the joist-flanges 20, and passages 37 in the upper ring receive the punches and in the lower ring similar members 36b, which eject the blanks 47 from the die passages 37. Links 34 connect the punches 36a to a spider 32 on a bearing 29 on an eccentric 28 keyed to the shaft 12. A similar arrangement supports the ejectors, such that the punches are projected and the ejectors retracted in the nip. By releasing a spring-loaded pin 39, an arm 38 may turn shaft 12 and thus the eccentric 28, retracting the punches in the nip if a section of imperforate web is desired. The Provisional Specification states also that the punching rolls may effect a final roll-forming operation on the joist.
GB3267958A 1958-10-14 1958-10-14 Improvements relating to the punching of metal members such as sheets, joists or the like Expired GB920443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3267958A GB920443A (en) 1958-10-14 1958-10-14 Improvements relating to the punching of metal members such as sheets, joists or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3267958A GB920443A (en) 1958-10-14 1958-10-14 Improvements relating to the punching of metal members such as sheets, joists or the like

Publications (1)

Publication Number Publication Date
GB920443A true GB920443A (en) 1963-03-06

Family

ID=10342378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3267958A Expired GB920443A (en) 1958-10-14 1958-10-14 Improvements relating to the punching of metal members such as sheets, joists or the like

Country Status (1)

Country Link
GB (1) GB920443A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317351A (en) * 1979-03-12 1982-03-02 Fisher & Paykel Limited Methods of and/or apparatus for punching holes in sheet metal
EP0055880A2 (en) * 1981-01-07 1982-07-14 Tommaso Pavone Punching and nibbling machine having die-carrying turrets with horizontal and parallel axes
WO2001032370A1 (en) * 1999-11-03 2001-05-10 Bonar Inc. Retractable needle unit for a punching apparatus
EP0972585A3 (en) * 1998-07-16 2003-04-16 Schuler Pressen GmbH & Co. KG Rotary forming machine with better forming behaviour
EP1727654A1 (en) * 2004-03-15 2006-12-06 Teck Cominco Metals Ltd. Continuous rotary hole punching method and apparatus
JP2011088187A (en) * 2009-10-22 2011-05-06 Calsonic Kansei Corp Blanking machining device and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317351A (en) * 1979-03-12 1982-03-02 Fisher & Paykel Limited Methods of and/or apparatus for punching holes in sheet metal
EP0055880A2 (en) * 1981-01-07 1982-07-14 Tommaso Pavone Punching and nibbling machine having die-carrying turrets with horizontal and parallel axes
EP0055880A3 (en) * 1981-01-07 1983-05-18 Tommaso Pavone Punching and nibbling machine having die-carrying turrets with horizontal and parallel axes
EP0972585A3 (en) * 1998-07-16 2003-04-16 Schuler Pressen GmbH & Co. KG Rotary forming machine with better forming behaviour
WO2001032370A1 (en) * 1999-11-03 2001-05-10 Bonar Inc. Retractable needle unit for a punching apparatus
EP1727654A1 (en) * 2004-03-15 2006-12-06 Teck Cominco Metals Ltd. Continuous rotary hole punching method and apparatus
EP1727654A4 (en) * 2004-03-15 2007-05-09 Teck Cominco Metals Ltd Continuous rotary hole punching method and apparatus
JP2011088187A (en) * 2009-10-22 2011-05-06 Calsonic Kansei Corp Blanking machining device and method

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