US3796080A - Combined stretch-type straightening apparatus for metal strips - Google Patents

Combined stretch-type straightening apparatus for metal strips Download PDF

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Publication number
US3796080A
US3796080A US00253263A US3796080DA US3796080A US 3796080 A US3796080 A US 3796080A US 00253263 A US00253263 A US 00253263A US 3796080D A US3796080D A US 3796080DA US 3796080 A US3796080 A US 3796080A
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United States
Prior art keywords
bending machine
rolls
roll
differential
strip
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Expired - Lifetime
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US00253263A
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English (en)
Inventor
C Munchbach
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UNGERER I DT
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Individual
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    • 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
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
    • 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
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/05—Stretching combined with rolling

Definitions

  • stretch-type straightening apparatuses are being used in an increasing extent.
  • Such an apparatus comprises so-calle'd S- roll assemblies formed of rolls of large diameter; one roll assembly serves as a hold-back assembly, while the other serves as a drawing assembly.
  • the strip is trained in an S-shaped path about the rolls and adheres to the rolls by virtue of looping and friction.
  • a strip which runs continuously through such an apparatus is held back by the hold-back assembly and pulled by the drawing assembly.
  • the strip is stretched to such a substantial extent that its entire cross section will exceed the flow limit and will thus plastically deform and become tension free.
  • the magnitude of pull to be exerted by the drawing assembly for the stretching and straightening depends upon the material and the cross section of the strip and may be set to a maximum stretching force.
  • a lengthening of the strip from roll to roll makes it impossible to drive the r.olls together in a conventional manner with the same angular velocity by means of a gear assembly, even though the rolls all have the same diameter.
  • this difficulty is circumvented by leaving the bending machine without a drive means and causing the rolls thereof to be dragged by the strip.
  • Such a solution places on the drawing roll assembly the additional burden of bending work which is possible only when the apparatus operates at the maximum drawing output.
  • each roll pair of the bending machine there is associated a differential gearing and every two differential gearings are driven by a common main differential gearing.
  • FIG. 1 is a schematic sectional view of the roll assembly of the bending machine
  • FIG. 2 is a schematic illustration of the drive means for the bending machine and FIG. 3 is a schematic illustration of another embodiment of the drive means for the bending machine.
  • the bending machine schematically illustrated in FIG. 1 comprisesfour rolls 22, 27, 40 and 45 about which a metal strip 46 is trained in an S-like path.
  • FIGS. 2 and 3 The rolls of the bending machine are driven by a common drive motor (not shown) with the intermediary of a drive gear assembly, two embodiments of which are illustrated in FIGS. 2 and 3.
  • a drive motor not shown
  • FIGS. 2 and 3 Two embodiments of which are illustrated in FIGS. 2 and 3.
  • FIG-2 there is shown an input shaft 8 which is rotated by a drive motor (not shown) and to which there is keyed a bevel gear 9.
  • the latter meshes with a bevel gear 7 which, in turn, is' affixed to the housing of a main differential gearing 1.
  • Within the housing there are disposed bevel gears 4 and 5 keyed to respective. shafts 2 and 3 which journal in said housing and which project outwardly therefrom.
  • the bevel gears 4 and 5 are interconnected by means of a compensating bevel gear 6 which also journals in the housing.
  • the main differential gearing 1 drives two differential gearings l2 and 30.
  • the spur gear 11 is affixed to the housing of the differential gearing 12, while thespur gear '29 is fastened to the housing of the differential gearing 30.
  • the differential gearings l2 and 30 are of identical structure and are provided with bevel gears l5, l7 and 33, 35, which are respectively interconnected by compensating bevel gears 16 and 34 keyed to shafts 13, 14 and 31, 32.
  • the shafts 13 and 14 project outwardly from the differential geraing 12 and are connected to bevel gear drives 18 and 23, respectively.
  • the shafts 31 and 32 project outwardly from the differential gearing 30 and are connected, respectively, to bevel gear drives 36 and 41.
  • the output shafts 21 and 26 of the bevel gear drives 18 and 23 (associated with the differential gearing l2) drive the rolls 22 and 27, respectively, while the output shafts 39 and 44 of the respective bevel gear drives 36 and 41 (associated with the differential gearing 30) drive the rolls 40 and 45, respectively.
  • the bevel gear drives 18, 23, 36 and 41 have respective bevel gears 19, 24, 37, 38, and 42, 43. These bevel gears are keyed to respective shafts 14, 21; 13, 26; 31, 39, and 42, 44.
  • the latter is arranged in such a manner that the projecting shafts 2' and 3, contrary to the arrangement according to FIG. 2, extend parallel to the drive shaft 8.
  • spur gears 49 and 50 which mesh with further spur gears 51 and 52 of respective intermediate shafts 53 and 54.
  • the opposite rotation of the shafts driven by one and the same differential gearing is achieved by connecting one of the shafts extending from the differential gearing directly with a roll of the bending machine, whereas the other shaft extending from the same differential gearing is connected to the other roll with the intermediary of a gearing comprising two meshing spur gears.
  • the opposite rotation of the roll drive shafts is achieved by connecting the shafts extendingfrom the differential gearing with bevel gear drives arranged in a mirror symmetry. In this manner the drive shafts extending from the bevel gear drives will rotate in opposite directions.
  • a combined apparatus for straightening, by a stretching pull, a metal strip of indefinite length running therethrough said apparatus being of the known type that has (a) a hold-back roll assembly, (b) a pulling roll assembly disposed downstream of said holdback roll assembly and (c) a bending machine disposed between said hold-back roll assembly and said pulling roll assembly, said bending machine including an even number of rolls about which said running strip is trained in an S-shaped path, the improvement in said bending machine comprising,
  • first differential gearings each being drivingly connected to a separate roll pair each formed of two different rolls of said bending machine and B. at least one second or main differential gearing,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Retarders (AREA)
US00253263A 1971-05-13 1972-05-15 Combined stretch-type straightening apparatus for metal strips Expired - Lifetime US3796080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2123655A DE2123655B2 (de) 1971-05-13 1971-05-13 Kombinierte Strecknchtanlage fur Metallbander

Publications (1)

Publication Number Publication Date
US3796080A true US3796080A (en) 1974-03-12

Family

ID=5807698

Family Applications (1)

Application Number Title Priority Date Filing Date
US00253263A Expired - Lifetime US3796080A (en) 1971-05-13 1972-05-15 Combined stretch-type straightening apparatus for metal strips

Country Status (9)

Country Link
US (1) US3796080A (enrdf_load_stackoverflow)
AT (1) AT312392B (enrdf_load_stackoverflow)
BE (1) BE783488A (enrdf_load_stackoverflow)
CA (1) CA948894A (enrdf_load_stackoverflow)
DE (1) DE2123655B2 (enrdf_load_stackoverflow)
FR (1) FR2137435B1 (enrdf_load_stackoverflow)
GB (1) GB1358796A (enrdf_load_stackoverflow)
IT (1) IT950882B (enrdf_load_stackoverflow)
SE (1) SE370506B (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1016472A1 (de) * 1998-12-31 2000-07-05 Arku Maschinenbau Gmbh Vorrichtung zum Walzrichten von metallischem Gut
US20090120036A1 (en) * 2007-11-13 2009-05-14 Infinite Edge Technologies, Llc Box spacer with sidewalls
US20110104512A1 (en) * 2009-07-14 2011-05-05 Rapp Eric B Stretched strips for spacer and sealed unit
US8967219B2 (en) 2010-06-10 2015-03-03 Guardian Ig, Llc Window spacer applicator
US9228389B2 (en) 2010-12-17 2016-01-05 Guardian Ig, Llc Triple pane window spacer, window assembly and methods for manufacturing same
US9260907B2 (en) 2012-10-22 2016-02-16 Guardian Ig, Llc Triple pane window spacer having a sunken intermediate pane
US9309714B2 (en) 2007-11-13 2016-04-12 Guardian Ig, Llc Rotating spacer applicator for window assembly
US9689196B2 (en) 2012-10-22 2017-06-27 Guardian Ig, Llc Assembly equipment line and method for windows

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2228812C2 (ru) * 2002-06-28 2004-05-20 Открытое акционерное общество "Северсталь" Установка правки полосы растяжением с изгибом
DE102017101777B4 (de) * 2017-01-30 2022-09-08 Andritz Metals Germany Gmbh Biegerichtmaschine und Verfahren zum Biegerichten eines metallischen Flachprodukts

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432828A (en) * 1939-07-01 1947-12-16 United Eng Foundry Co Apparatus for stretcher leveling strips
US3326026A (en) * 1963-08-01 1967-06-20 Loire Atel Forges Metal sheet and strip flattening apparatus
US3327509A (en) * 1966-05-10 1967-06-27 Maust Machinery Corp Roller leveling
US3362202A (en) * 1964-07-03 1968-01-09 Loire Atel Forges Strip tensioning apparatus
US3626737A (en) * 1968-12-27 1971-12-14 Wean Ind Inc Bridles
US3641797A (en) * 1970-02-05 1972-02-15 American Metal Climax Inc Stretcher leveling system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861683C (de) * 1950-10-15 1953-01-05 Kocks Gmbh Friedrich Einrichtung zum gleichzeitigen Antreiben mehrerer Walzen eines aus mehr als zwei Walzen bestehenden Walzengeruestes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432828A (en) * 1939-07-01 1947-12-16 United Eng Foundry Co Apparatus for stretcher leveling strips
US3326026A (en) * 1963-08-01 1967-06-20 Loire Atel Forges Metal sheet and strip flattening apparatus
US3362202A (en) * 1964-07-03 1968-01-09 Loire Atel Forges Strip tensioning apparatus
US3327509A (en) * 1966-05-10 1967-06-27 Maust Machinery Corp Roller leveling
US3626737A (en) * 1968-12-27 1971-12-14 Wean Ind Inc Bridles
US3641797A (en) * 1970-02-05 1972-02-15 American Metal Climax Inc Stretcher leveling system

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1016472A1 (de) * 1998-12-31 2000-07-05 Arku Maschinenbau Gmbh Vorrichtung zum Walzrichten von metallischem Gut
EP1025921A1 (de) * 1998-12-31 2000-08-09 Arku Maschinenbau Gmbh Vorrichtung zum Richten von metallischem Gut
US8596024B2 (en) 2007-11-13 2013-12-03 Infinite Edge Technologies, Llc Sealed unit and spacer
US9187949B2 (en) 2007-11-13 2015-11-17 Guardian Ig, Llc Spacer joint structure
US20090123694A1 (en) * 2007-11-13 2009-05-14 Infinite Edge Technologies, Llc Material with undulating shape
US20090120018A1 (en) * 2007-11-13 2009-05-14 Infinite Edge Technologies, Llc Sealed unit and spacer with stabilized elongate strip
US20090120019A1 (en) * 2007-11-13 2009-05-14 Infinite Edge Technologies, Llc Reinforced window spacer
US20090120035A1 (en) * 2007-11-13 2009-05-14 Infinite Edge Technologies, Llc Sealed unit and spacer
US8151542B2 (en) 2007-11-13 2012-04-10 Infinite Edge Technologies, Llc Box spacer with sidewalls
US9617781B2 (en) 2007-11-13 2017-04-11 Guardian Ig, Llc Sealed unit and spacer
US20090120036A1 (en) * 2007-11-13 2009-05-14 Infinite Edge Technologies, Llc Box spacer with sidewalls
US8795568B2 (en) 2007-11-13 2014-08-05 Guardian Ig, Llc Method of making a box spacer with sidewalls
US9309714B2 (en) 2007-11-13 2016-04-12 Guardian Ig, Llc Rotating spacer applicator for window assembly
US9127502B2 (en) 2007-11-13 2015-09-08 Guardian Ig, Llc Sealed unit and spacer
US20110104512A1 (en) * 2009-07-14 2011-05-05 Rapp Eric B Stretched strips for spacer and sealed unit
US8586193B2 (en) 2009-07-14 2013-11-19 Infinite Edge Technologies, Llc Stretched strips for spacer and sealed unit
US8967219B2 (en) 2010-06-10 2015-03-03 Guardian Ig, Llc Window spacer applicator
US9228389B2 (en) 2010-12-17 2016-01-05 Guardian Ig, Llc Triple pane window spacer, window assembly and methods for manufacturing same
US9260907B2 (en) 2012-10-22 2016-02-16 Guardian Ig, Llc Triple pane window spacer having a sunken intermediate pane
US9689196B2 (en) 2012-10-22 2017-06-27 Guardian Ig, Llc Assembly equipment line and method for windows

Also Published As

Publication number Publication date
AT312392B (de) 1973-12-27
CA948894A (en) 1974-06-11
SE370506B (enrdf_load_stackoverflow) 1974-10-21
DE2123655A1 (de) 1973-01-04
BE783488A (fr) 1972-09-01
GB1358796A (en) 1974-07-03
IT950882B (it) 1973-06-20
FR2137435A1 (enrdf_load_stackoverflow) 1972-12-29
DE2123655B2 (de) 1973-10-18
FR2137435B1 (enrdf_load_stackoverflow) 1975-06-13

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