GB1424979A - Die forming apparatus - Google Patents

Die forming apparatus

Info

Publication number
GB1424979A
GB1424979A GB2444974A GB2444974A GB1424979A GB 1424979 A GB1424979 A GB 1424979A GB 2444974 A GB2444974 A GB 2444974A GB 2444974 A GB2444974 A GB 2444974A GB 1424979 A GB1424979 A GB 1424979A
Authority
GB
United Kingdom
Prior art keywords
ram
pressure
conduit
platen
workpiece
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
GB2444974A
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB1424979A publication Critical patent/GB1424979A/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
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing

Abstract

1424979 Bending metal CATERPILLAR TRACTOR CO 3 June 1974 [13 July 1973] 24449/74 Heading B3E A workpiece is formed progressively from one end to the other between opposed dies one 28 of which presents a corrugated face, Fig. 4, while the other consists of a plurality of members 42, 44, 43 successively forced into engagement with the workpiece by a wedge member 57. The members 42, 44, 43, have bevelled upper ends 49 and are loosely supported on rods 51 mounted in frames 36 which depend from an upper platen 24 so as to leave a way for advance of the wedge member 57. The lower die is mounted on a lower platen 22, Fig. 1, the upper platen being mounted on the rod 18 of a ram 17 and sliding on guides 23. A ram 62 mounted on the upper platen reciprocates the wedge member 57 and is connected in the same hydraulic circuit as ram 17. A spacer block 26 adjustable by shims 27 is located between the platens. When pressure fluid is admitted to conduit 74, the ram extends readily, producing lower pressure in the conduit, until platen 24 abuts spacer 26, the die members then being in light contact with the workpiece. The pressure then builds up in conduit 74, which operates a sequencing valve 82 to admit pressure to conduit 78, operating ram 62 to effect the corrugation progressively. When pressure fluid is admitted to conduit 76, it first retracts ram 62 at low pressure, and then causes ram 17 to raise platen 24 until a microswitch (not shown) is operated to remove all fluid pressure and set an hydraulic lock on the rams.
GB2444974A 1973-07-13 1974-06-03 Die forming apparatus Expired GB1424979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00379402A US3845654A (en) 1973-07-13 1973-07-13 Die forming apparatus

Publications (1)

Publication Number Publication Date
GB1424979A true GB1424979A (en) 1976-02-11

Family

ID=23497105

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2444974A Expired GB1424979A (en) 1973-07-13 1974-06-03 Die forming apparatus

Country Status (4)

Country Link
US (1) US3845654A (en)
JP (1) JPS5038872A (en)
BE (1) BE816251A (en)
GB (1) GB1424979A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5333482A (en) * 1992-10-30 1994-08-02 Solar Turbines Incorporated Method and apparatus for flattening portions of a corrugated plate
US5694803A (en) * 1994-11-30 1997-12-09 Solar Turbines Incorporated Fin folding machine for corrugating sheet material
JP2003275824A (en) * 2002-03-18 2003-09-30 Xenesys Inc Press device
JP4327166B2 (en) * 2005-02-25 2009-09-09 日高精機株式会社 Corrugated fin manufacturing equipment
US9126253B2 (en) * 2011-01-28 2015-09-08 Toyota Jidosha Kabushiki Kaisha Mold for press forming
CN105065044B (en) * 2015-08-05 2020-02-21 长治市永华机械有限公司 Hydraulic support removing platform
CN105127298A (en) * 2015-09-18 2015-12-09 上海东海压力容器制造有限公司 Die system for machining corrugated plate for AP10000 steam generator dryer
CN105127299A (en) * 2015-09-21 2015-12-09 上海东海压力容器制造有限公司 Die system for machining corrugated plate for CAP1000/CAP1400 steam generator dryer
CN109334096B (en) * 2018-10-25 2020-04-14 宁夏金世纪包装印刷有限公司 Automatic grey board bending device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US24689A (en) * 1859-07-05 Improvement in corrugating sheet metal
US1939065A (en) * 1931-01-22 1933-12-12 E W Blies Company Flanging and corrugating machine and method
GB454229A (en) * 1935-03-25 1936-09-25 Cyril Terence Delaney Improvements in or relating to the manufacture of radiators for internal combustion engines
US2510024A (en) * 1940-03-27 1950-05-30 Mayer Eugene Means for corrugating metal sheets
US2378742A (en) * 1942-02-02 1945-06-19 Sk Wellman Co Apparatus for forming sheet metal articles
US2397582A (en) * 1944-03-09 1946-04-02 Curtiss Wright Corp Corrugating die
US2960141A (en) * 1957-12-26 1960-11-15 Johns Manville Hydrofolding of metal
US3307387A (en) * 1963-12-11 1967-03-07 Rohr Corp Method and apparatus for perforating and corrugating metallic ribbon
US3340719A (en) * 1964-10-28 1967-09-12 Strick Corp Apparatus and method of producing multiple corrugations simultaneously
FR1464667A (en) * 1965-09-17 1967-01-06 Commissariat Energie Atomique Fin Series Corrugating Machine
BE792036A (en) * 1971-11-29 1973-05-29 Caterpillar Tractor Co METHOD AND APPARATUS FOR DEFORMING SHEET MATERIAL

Also Published As

Publication number Publication date
BE816251A (en) 1974-12-13
US3845654A (en) 1974-11-05
JPS5038872A (en) 1975-04-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]