US2510024A - Means for corrugating metal sheets - Google Patents

Means for corrugating metal sheets Download PDF

Info

Publication number
US2510024A
US2510024A US677A US67748A US2510024A US 2510024 A US2510024 A US 2510024A US 677 A US677 A US 677A US 67748 A US67748 A US 67748A US 2510024 A US2510024 A US 2510024A
Authority
US
United States
Prior art keywords
sections
centre
die
machine
sheet
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
US677A
Inventor
Mayer Eugene
Original Assignee
Mayer Eugene
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
Priority to FR2510024X priority Critical
Application filed by Mayer Eugene filed Critical Mayer Eugene
Application granted granted Critical
Publication of US2510024A publication Critical patent/US2510024A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D13/00Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/02Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing

Description

Mw E@ E. MAYEEQ MEANS FOR CORRUGATING METAL SHEETS Filedan. `es, 1948 2 Sheets-sneer, l
Miay 3m E953@ E. MAYEE MEANS EOE COERUEATENG METAL SHEETS 2 Sheets-Sheet 2 Filed Jan. 6, 1948 INVENTOR.
EUGENE MAYER AENT Patented May 30, 1950 UNITED STATES TENT QFFICE Application January 6, 1948, Serial No. 677 In France March 27, 1940 According to a conventional method., the corrugations are formed in a sheet, one after another, by means of a stamp in the form of a blade, adapted to form one corrugation only, and co-operating with a corrugated die-bed. With this method it is necessary to move the sheet across the die-bed in a stepwise fashion in order to provide corrugations across the whole sheet, as only one corrugation can be obtained at a time with the aforo-described tools. This is a tedious and therefore not very satisfactory method. It has also been proposed to provide a corrugating machine of the type described with independently movable holding blocks for retaining the corrugated parts of a sheet in position on the die-bed.
Another form of a corrugating machine cornprised a corrugated die-bed and a series of separate, independently movable and spring-controlled blades co-operating with the die-bed, for forming the corrugations. In this machine, however, the sheet was not positively gripped across its entire width, but only at individual points, so that an even and correct formation of the corrugations was not ensured. Furthermore, the blades were not easily interchangeable, so that the machine could only be employed for making one type and size of corrugations, and, lastly, in View of the great number of individually operated blades, adjustment of the machine was complicated and maintenance diilicult.
It is an object of the present invention to provide a machine suitable for carrying out the improved method.
According tc the invention, the formation of corrugations progresses in steps from the centre of the sheets towards their ends, the sheets being acted upon from both sides by sectional dies, the die sections having continuous proles and being successively brought into action on the sheets during one operation. In this manner, a plurality of corrugations is formed in each step and the sheets are gripped positively at either side during the whole operation. The method according to the invention is applicable t sheets both of low and of high tensile strength.
The invention consists of a machine for making corrugated metal sheets, comprising sectional upper and lower dies, the die sections havingl 3 Claims. (Cl. 153-76) lil steps with dies having one movable centre section only.
The centre sections of the dies are normally projected' beyond the end sections by elastic means, such as springs or fluid-operated pistons, so that the centre sections will automatically recede to the level of the end sections when the latter are broughtinto enga-gement with a sheet.
In the accompanying drawings, the method according to the invention and two embodiments of a machine for carrying out the same are illustrated.
In the drawings:
Figs. 1 to 5 show the various steps of one corrugating operation.
Fig. 6 is a sectional elevation of a machine according to the invention.
Fig. 'l is a detail of this machine.
Fig. 8 is another form of corrugating machine according to the invention.
Fig. 9 is a side elevation of a machine according to Fig. 6.
As will be seen from Figs. 1 to 5, the upper die consists of a central section Il! and end sections il; the end sections I I are secured to the upper platen I2, whereas the centre section IIl is adapted, by means to be described later, to slide relatively to the platen I 2. The lower die comprises a centre section I3 and two end sections I4 which are secured to the lower platen I5, whilst the centre section I3 is adapted to slide relatively to the platen I5. It will be seen that the lower centre section I3 is of considerably greater width than the upper centre section Iii, and that, conversely, the lower end sections I4 are narrower than the upper end sections I I.
In the position shown in Fig. 1, the two platens I2 and I5 are spaced apart with the two centre sections lil and I3 projecting beyond the end sections. A sheet S, which has been previously straightened, is fed into the machine and supported on the lower centre section I3.
In Fig. 2, the two platens I2 and I5 have been moved towards each other to such an extent that the upper centre section It is in engagement with the lower centre section I3, and a centre portion S1 of the sheet has been corrugated.
In Fig. 3, the two platens I2 and I5 have been further moved together, so that the lower centre section I3 is now in engagement with the upper `end sections II, with the result that the corrugated portion of the sheet now extends laterally into two zones, S2.
In Fig. 4, the two platens I2 and I5 have been drawn together as nearly as possible, with the result that the end lower sections I4 contact the sheet at the end zones S3 and effect their cor- Lru'gationsin co-operation with the upper end sections II.
`In Fig. 5, the two platens I2 and I5 are drawn apart and into the positions which they occupied in Fig. 1, the operation has been completed, the sheet S is provided with corrugations across its entire width, and it now rests on the projected lower centre section I3, from where it can be easily removed.
The embodiment of a corrugating machine according to the invention as shown in Fig. 6 hasr a stationary lower platen I6 and a movable upper platen Il. The dies are subdivided into central sections I and I3 and end sections II and I4 respectively. The movable central sections I0 and I3 are mounted on blocks I8 and I9 respecttively which have shoulders 28 and 2l respectively movable in cavities 22 and 23 provided in the platens I9 and I'I. respectively. In this way, the travel of the blocks I8 and I9 in the cavities 22y andr 2'3 is limited in either direction.
The blocks I8 and I9 are supported on rods 2&3 and respectively; as the block I8 is comparatively narrow, one rod 24 is sufficient, whilst in the case of the block I9, which has about twice the width of the Vblock I8, two rods 25 are provided. Rods 24 and 25 are slidable in cylinders 25 and 2'1 into which pressure iiuid is admitted through pipesI 28` and 29 respectively. |Ihe pressure uid may either be a liquid or compressed air. The pressure of the fluid tends to project the blocks I8 and I9 forward, so that the centre sections I and I3 normally project beyond the end Ysections II and I4. When the platens IS and I? are drawn together, however, the shoulders 2) and 2l of the blocks I8 and I9 recede into the cavities 2 2and 23, displacing the pressure iluid at the same time.
Alternatively, the pressure fluid cylinders 26 and 2'! can be replaced by hydraulic recoils as shown in Fig. '7, comprising a closed cylinder 39 lled with a liquid' of suitable viscosity, in which a plunger 3| having narrow ducts 32 is displaceable; a spring 33 is arranged between the plunger and the cover of the cylinder.
Upon the approach stroke of the platen IB, the plunger 3I is displaced upwardly in the cylinder 3o, compressing at the same time the spring 33 and displacing the liquid on top of the plunger, which slowly passes through the ducts 32 into the lower part of the cylinder 39. As the ducts are very narrow, the movement of the plunger is slowed down considerably. As soon as the platens are drawn apart, the plunger 3l is forced back into its initial position through the spring 33.
In the embodiment of Fig. 8, the blocks i3 and I9: are engaged by springs 34, 35 respectively which slow down theinward movement of the blocks I8 and I9 and act, further, as buffers when the two platensV Ixand II are drawn apart. The springs 34 and 35 are held in position by means of discs 39, 3l and adjusting screws 38, 39 respectively, threaded into the platens VI6 and I1.
Fig. 9- shows a general arrangement of the corrugating machine. according to the invention. The machine has two end frames 40- with apertures 4I for feeding a sheet into the space between Vthe sectional dies and for discharging a sheet after the operation has been completed. In practice, the arrangement will be such that straight sheets, are fedV into the machine at` one end. and discharged, after corrugation, through the other. This makes it possible to employ the machine in line with other processing apparatus, for instance, straightening machines or galvanising tanks.
I claim:
1. In a machine for corrugating metal sheets, an upper die and a lower die, both dies being movable towards each other, each die consisting of a number of sections arranged in juxtaposition to each other, each die section having a plurality of corrugations on its surface corresponding in shape. to those to be formed on a sheet, the centre section of one die being substantially smaller and its outer sections being substantially wider than the corresponding sections of the other die, resilient pressure means acting on both dies for projecting said centre sections in advance of said outer sections, and power means for drawing together in one continuous stroke first the centre sections of bothV dies and then the outer sections of both dies.
2. In a machine for corrugating metal sheets, an upper die and a,` lower die, both dies being movable towards each other, each die being subdivided into at least three sections, the lower die consisting of a wide centre section and two narrow outer sections, and the upper die consisting of a narrow centre section and two wide outer sections, each. of the sectionson both dies having a plurality of corrugations on their surface, said corrugations conforming to those to be produced on asheet, separate means on both dies for resiliently holding the centre sections in positions inI which their corrugated surfaces protrude above the corrugated Vsurfaces of the outer sections, and power means adapted to draw first the two centre sections and then the four outer sections together in one continuous stroke, causing thereby rst the narrow centre section and then the wide centre section to recede into positions in which the corrugated surfaces form one continuous line with the` corrugated surfaces of the adjoining outer sections.
3. In, a, machine for corrugating metal sheets having an upper and lower die movable towards each other, each die. comprising a platen and centre block, said centre blocks being slidable relative to said platens in the direction of the die movement, said platens and said` blocks having each a plurality of corrugations on their surfaces conforming to those to be produced on a sheet, the centre block of one die having substantially greater width than the centre block of the other die, means for holding said blocks in a position in which their corrugated surfaces project past the corrugated surfacesl of the platens, and power-operated means for drawing first the blocks and then the platens together in one continuous stroke, whereby the corrugations are formed on a, sheet in groups, beginningY in the centre and progressing stepwise from the centre to. bothV sides of the sheet.
' EUGENE MAYER.
REFERENCES CITED The following` references are of record in the leof this. patent:
UNITED STATES PATENTS Number Name Y Date 1,285,260` Leber Nov. 19, 1918 1,485,917 Harter Mar. 4, 1924 2,397,582 Watt et al. Apr, 2, 1946 FOREIGN PATENTS Number Country Date 4,234` Great` Britain 1883 4543229 Great Britain Sept. 25, 1936
US677A 1940-03-27 1948-01-06 Means for corrugating metal sheets Expired - Lifetime US2510024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2510024X 1940-03-27

Publications (1)

Publication Number Publication Date
US2510024A true US2510024A (en) 1950-05-30

Family

ID=9685972

Family Applications (1)

Application Number Title Priority Date Filing Date
US677A Expired - Lifetime US2510024A (en) 1940-03-27 1948-01-06 Means for corrugating metal sheets

Country Status (1)

Country Link
US (1) US2510024A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169568A (en) * 1962-10-05 1965-02-16 Gremillion Brothers Inc Cotton picker bar resizing tool assembly
US3194283A (en) * 1959-09-01 1965-07-13 James A Young Method of shaping wire screen
US3319452A (en) * 1963-10-07 1967-05-16 Rohr Corp Corrugation punch press
US3340719A (en) * 1964-10-28 1967-09-12 Strick Corp Apparatus and method of producing multiple corrugations simultaneously
US3748889A (en) * 1971-11-29 1973-07-31 Caterpillar Tractor Co Apparatus for deforming sheet material
US3762206A (en) * 1971-12-02 1973-10-02 Lucas Industries Ltd Apparatus for and method of manufacturing cores for ignition coils
US3845654A (en) * 1973-07-13 1974-11-05 Caterpillar Tractor Co Die forming apparatus
EP0474679A1 (en) * 1989-05-30 1992-03-18 Gradual Pty. Ltd. Method and apparatus for the fabrication of 3-dimensional blanks
EP0498777A1 (en) * 1991-02-08 1992-08-12 Massimo Marchesini Method for forming containers of undulated cardboard
US6357113B1 (en) 1999-11-04 2002-03-19 Williams International Co., L.L.C. Method of manufacture of a gas turbine engine recuperator
US20020179290A1 (en) * 2001-06-05 2002-12-05 Larson Ralph I. Heatsink assembly and method of manufacturing the same
US20040182126A1 (en) * 2003-03-19 2004-09-23 Richard Smith Metal unit nesting machine
US20060236741A1 (en) * 2005-04-20 2006-10-26 Jatco Ltd Press forming method and apparatus
US20070000298A1 (en) * 2002-04-11 2007-01-04 Daimlerchrysler Ag Method and embossing die for producing a body structural part from a vault-structured sheet metal
US20080040926A1 (en) * 2006-08-15 2008-02-21 The Boeing Company Apparatus and Method for Forming Corrugated Members
US20110209517A1 (en) * 2010-03-01 2011-09-01 Motoki Mitsuhiro Production equipment for producing corrugated fin
US20130180698A1 (en) * 2012-01-17 2013-07-18 Denso Corporation Corrugated plate manufacturing apparatus
US20160211532A1 (en) * 2013-06-04 2016-07-21 Nissan Motor Co., Ltd. Molding method for removing separator distortion and molding device for removing separator distortion
US20160296990A1 (en) * 2015-04-09 2016-10-13 Denso Corporation Press working method
US20160354967A1 (en) * 2015-06-04 2016-12-08 Fuji Jukogyo Kabushiki Kaisha Method for producing resin molded body and press molding apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1285260A (en) * 1918-03-18 1918-11-19 Nelson J Quinn Machine for forming radiator-cores.
US1485917A (en) * 1922-06-14 1924-03-04 Harter Louis Method of and apparatus for making a sheet-metal product
GB454229A (en) * 1935-03-25 1936-09-25 Cyril Terence Delaney Improvements in or relating to the manufacture of radiators for internal combustion engines
US2397582A (en) * 1944-03-09 1946-04-02 Curtiss Wright Corp Corrugating die

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1285260A (en) * 1918-03-18 1918-11-19 Nelson J Quinn Machine for forming radiator-cores.
US1485917A (en) * 1922-06-14 1924-03-04 Harter Louis Method of and apparatus for making a sheet-metal product
GB454229A (en) * 1935-03-25 1936-09-25 Cyril Terence Delaney Improvements in or relating to the manufacture of radiators for internal combustion engines
US2397582A (en) * 1944-03-09 1946-04-02 Curtiss Wright Corp Corrugating die

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194283A (en) * 1959-09-01 1965-07-13 James A Young Method of shaping wire screen
US3169568A (en) * 1962-10-05 1965-02-16 Gremillion Brothers Inc Cotton picker bar resizing tool assembly
US3319452A (en) * 1963-10-07 1967-05-16 Rohr Corp Corrugation punch press
US3340719A (en) * 1964-10-28 1967-09-12 Strick Corp Apparatus and method of producing multiple corrugations simultaneously
US3748889A (en) * 1971-11-29 1973-07-31 Caterpillar Tractor Co Apparatus for deforming sheet material
US3762206A (en) * 1971-12-02 1973-10-02 Lucas Industries Ltd Apparatus for and method of manufacturing cores for ignition coils
US3845654A (en) * 1973-07-13 1974-11-05 Caterpillar Tractor Co Die forming apparatus
EP0474679A4 (en) * 1989-05-30 1993-02-17 Gradual Pty. Ltd. Method and apparatus for the fabrication of 3-dimensional blanks
EP0474679A1 (en) * 1989-05-30 1992-03-18 Gradual Pty. Ltd. Method and apparatus for the fabrication of 3-dimensional blanks
EP0498777A1 (en) * 1991-02-08 1992-08-12 Massimo Marchesini Method for forming containers of undulated cardboard
US6357113B1 (en) 1999-11-04 2002-03-19 Williams International Co., L.L.C. Method of manufacture of a gas turbine engine recuperator
US20020179290A1 (en) * 2001-06-05 2002-12-05 Larson Ralph I. Heatsink assembly and method of manufacturing the same
US7284596B2 (en) 2001-06-05 2007-10-23 Heat Technology, Inc. Heatsink assembly and method of manufacturing the same
US6827130B2 (en) * 2001-06-05 2004-12-07 Heat Technology, Inc. Heatsink assembly and method of manufacturing the same
US20050274490A1 (en) * 2001-06-05 2005-12-15 Larson Ralph I Heatsink assembly and method of manufacturing the same
US7234336B2 (en) * 2002-04-11 2007-06-26 Daimlerchrysler Ag Method and embossing die for producing a body structural part from a vault-structured sheet metal
US20070000298A1 (en) * 2002-04-11 2007-01-04 Daimlerchrysler Ag Method and embossing die for producing a body structural part from a vault-structured sheet metal
WO2004085106A3 (en) * 2003-03-19 2005-02-17 Kapok Res & Dev Inc Metal unit nesting machine
WO2004085106A2 (en) * 2003-03-19 2004-10-07 Kapok Research & Development, Inc. Metal unit nesting machine
US7243523B2 (en) * 2003-03-19 2007-07-17 Richard Smith Metal unit nesting machine
US20040182126A1 (en) * 2003-03-19 2004-09-23 Richard Smith Metal unit nesting machine
US7454940B2 (en) * 2005-04-20 2008-11-25 Jatco Ltd Press forming method and apparatus
US20060236741A1 (en) * 2005-04-20 2006-10-26 Jatco Ltd Press forming method and apparatus
US20080040926A1 (en) * 2006-08-15 2008-02-21 The Boeing Company Apparatus and Method for Forming Corrugated Members
US7642481B2 (en) * 2006-08-15 2010-01-05 The Boeing Company Apparatus and method for forming corrugated members
CN102189161B (en) * 2010-03-01 2015-04-01 日高精机株式会社 Production equipment for producing corrugated fin
US20110209517A1 (en) * 2010-03-01 2011-09-01 Motoki Mitsuhiro Production equipment for producing corrugated fin
US8424358B2 (en) * 2010-03-01 2013-04-23 Hidaka Seiki Kabushiki Kaisha Production equipment for producing corrugated fin
CN102189161A (en) * 2010-03-01 2011-09-21 日高精机株式会社 Production equipment for producing corrugated fin
US20130180698A1 (en) * 2012-01-17 2013-07-18 Denso Corporation Corrugated plate manufacturing apparatus
US9259775B2 (en) * 2012-01-17 2016-02-16 Denso Corporation Corrugated plate manufacturing apparatus
US20160211532A1 (en) * 2013-06-04 2016-07-21 Nissan Motor Co., Ltd. Molding method for removing separator distortion and molding device for removing separator distortion
US10020519B2 (en) * 2013-06-04 2018-07-10 Nissan Motor Co., Ltd. Molding method for removing separator distortion and molding device for removing separator distortion
US20160296990A1 (en) * 2015-04-09 2016-10-13 Denso Corporation Press working method
US20160354967A1 (en) * 2015-06-04 2016-12-08 Fuji Jukogyo Kabushiki Kaisha Method for producing resin molded body and press molding apparatus
US10926448B2 (en) * 2015-06-04 2021-02-23 Subaru Corporation Method for producing resin molded body and press molding apparatus

Similar Documents

Publication Publication Date Title
US2510024A (en) Means for corrugating metal sheets
US2287933A (en) Tangent bender
US3869776A (en) Method of fabricating curved fittings and device for effecting same
US5001918A (en) Method and apparatus for making blanks of a profile varying lengthwise
EP0007148B1 (en) Method of and apparatus for increasing the fin density of heat exchanger sheet material
US3478565A (en) Forging machine
US3831414A (en) Means for making pulleys
US3561248A (en) Apparatus for forming curved metal bars as automobile bumpers
US3057394A (en) Sheet bending machine for producing tubular elements and plant including applicationof said machine
US3479855A (en) Corrugating machine
US2419724A (en) Method and apparatus for bending plate and the like
US1941953A (en) Process and machine for manufacturing tubes
US2011907A (en) Tube making
GB1405373A (en) Apparatus for splicing reinforcing bars together
US2274856A (en) Forming device
SU416127A1 (en)
US3561244A (en) Apparatus for forming openings in tubular panels
SU470331A1 (en) Device for simultaneous bending of several profiles
RU2041007C1 (en) Method of making rod products, having end flange and bead in their mean portion and apparatus for performing the method
US3229494A (en) Apparatus for producing blades
RU1792765C (en) Sheet bending machine
SU850284A1 (en) Apparatus for drawing work from continuous casting mould
SU1109222A1 (en) Bending die
SU1004149A1 (en) Mechanical press
SU1166864A1 (en) Method and apparatus for piercing a group of holes