US2458906A - Supplementary forming means for strip-metal forming machines - Google Patents

Supplementary forming means for strip-metal forming machines Download PDF

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Publication number
US2458906A
US2458906A US672284A US67228446A US2458906A US 2458906 A US2458906 A US 2458906A US 672284 A US672284 A US 672284A US 67228446 A US67228446 A US 67228446A US 2458906 A US2458906 A US 2458906A
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ring
carrier
frame
forming
strip
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US672284A
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Himmel Fred
Himmel Isidore
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HIMMEL BROTHERS Co
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HIMMEL BROTHERS Co
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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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers

Definitions

  • This invention relates lto supplementary forming means for strip-metal forming machines and particularly to machines for forming str-ips for store-front construction. Owing to variations in the composition oi -metals and particularly stainless steel, strips coming from a forming machine do not retain the desired shape in cross section and have a tendency to curve or bow.
  • the object of this invention is to provide means for lsupplementall-y forming the strips to overcome variations in the alignment of the preformed strip, and the invention consists in the formation and arrangement of parts as hereinafter described and particularly recited 4in the claims.
  • Fig. 1 is a front View of supplementary forming mechanism for strip-forming machines, vconstructed in accordance with the present invention
  • Fig. 2 is a sectional view on the Aline 2 2 of Fig. 1;
  • Fig. 3 is a sectional view on Athe line 3.-3 of prising a header I9 and forming rolls I3, I4 andV I corresponding to the Vpreforming rollsof the metal-forming machine and in line therewith.
  • the roller-carrier vring I2 when Aturned circumierentially tothe ⁇ desired position in the ring frame I0, is adapted to be secured by bolts I6.
  • the ring-frame member I0 has an annular retaining-groove
  • the ring-frame I0 is provided with a pairnof screw-threaded radial apertures
  • a carrier-ring I2 is rotatably mounted in the vertical plane of the ring-frame I0, the periphery .of the carrier-ring .engaging the annular retaining-groove
  • the carrier-ring I2 is provided with a pair of substantially-diametrically-opposite slots
  • the carrier,- ring I2 is also provided with a pair of screwthreaded radial aperturesIZl adjacent its lower edge and on opposite sides respectively of its vertical axis ior accommodating a pair oi adjustingscrews I0 having enlarged heads
  • Each adjusting-screw is adaptedA to be mounted in a flanged bushing IGI', one of which is mounted lin each respective slot
  • the forming rolls I4 and I5 are respectively mounted in brackets I' and I8 which may be adjusted circumferentially within the carrier ring I2 to give the rolls the desired inclination.
  • the inner wall of the carrier-ring I2 is providedv with an annular non-circular retaining-groove
  • Each bracket I1 and I8 is adapted to be secured in a predetermined adjusted position circumferentially in its respective retaininggroove of the carrier-ring by means of an adjusting-screw
  • 8 may be adjusted circumferentially in the carrier-ring I2 independently of each other and of the adjustment of the carrier-ring
  • a shaping-block 20 Supported within the carrier-ring between the supplementary forming-means, as shown in Figs. 2 and 4 and arranged to rotate therewith, is a shaping-block 20 which has inclined side walls 2
  • the strip as it comes from the preforming-rolls has inclined walls, as indicated, for instance, by broken lines A. These walls, in passing between the supplementary forming rolls
  • This supplementary'strip-forming device with readily adjustable forming rolls will assure the desired configuration of a strip and straighten the strip if it tends to bow or curve as it comes from the first forming-rolls. Should the strip bow, curve or twist on leaving the preforming rolls, ⁇ the carrier-ring
  • a device for straightening a preformed metal strip a ring-frame, a carrier-ring adjustably mounted for rotation in the ring-frame, a shaping-block mounted in the said carrier-ring for rotation therewith; and supplementary forming-means comprising an under-roll, two siderolls, and a header, said rolls and header being adjustably mounted on said carrier-ring for movement relative to said shaping-block to supplementally form a strip passed between said supplementary forming-means.
  • a device for straightening a preformed metal strip a fixed ring-frame; a carrier-ring; means arranged to support said carrier-ring for adjustment circumferentially Within said fixed ring-frame; adjustable means cooperatively associated with said ring-frame and said carrierring to secure said carrier-ring in a predetermined adjusted position circumferentially within said fixed ring-frame; forming rolls; means arranged to support said forming-rolls Within said carrier-ring for adjustment circumferentially therein; and adjustable-means cooperatively associated with said forming-rolls supporting-means and said carrier-ring to secure said forming-rolls supporting-means in predetermined adjusted positions circumferentially within said carrier-ring;
  • a device for straightening a preformed metal strip a fixed ring-frame; a carrier-ring having circumferential slots in the periphery thereof; means arranged to support said carrierring for adjustment circumferentially within said xed ring-frame; adjustable-means cooperatively associated with said ring-frame and said carrierring to secure said carrier-ring in a predetermined adjusted position circumferentially within said fixed ring-frame; forming rolls; brackets constructed and arranged to support said forming-rolls Within said carrier-ring for adjustment circumferentially therein; and adjustable-bolts secured to said brackets and arranged to extend outwardly radially through the circumferential slots of said carrier-ring to secure said brackets in predetermined adjusted positions circumferentially within said carrier-ring.
  • a device for straightening a preformed metal strip a fixed ring-frame; a carrier-ring having an internal annular retaining-groove and circumferential slots in the periphery of said carrier-ring means arranged to support said carrierring for adjustment circumferentially within said fixed ring-frame; adjustable-means cooperatively associated with said ring-frame and said carrierring to secure said carrier-ring in a predetermined adjusted position circurnferentially within said fixed ring-frame; forming-rolls; brackets to support said forming-rolls, said .brackets having arcuate edges arranged to engage in the annular retaining-groove of said carrier-ring for adjustment circumferentially therein; and adjustable-means comprising bolts secured to said brackets and arranged to extend radially outwardly through the circumferential slots of said carrier-ring, and flanged bushings supported .by said bolts in'said arcuate slots, said flanged bushings being arranged to bind
  • a fixed ring-frame having circumferential slots in the periphery thereof; a carrierring; means arranged to support said carrier-ring for adjustment circumferentially within said xed ring-frame; adjustable-means comprising bolts secured to said carrier-ring ⁇ and arranged to extend outwardly radially through the circumferential slots of said fixed ring-frame to secure said carrier-ring in predetermined adjusted positions circumferentially within said ring-frame; forming-rolls; means constructed and arranged to support said forming-rolls within said carrierring for adjustment circumferentially therein; and adjustable-means cooperatively associated with said forming-rolls supporting-means and said carrier-ringl to secure said forming-rolls supporting-means in ,predetermined adjusted positions circumferentially within said carrier-ring.
  • a xed ring-frame having an internal annular retaining-groove and circumferential slots in the periphery of said ring-frame; a carrier-ring having circumferential slots inthe periphery thereof constructed and arranged to coincide with the circumferential slots of said ringframe said carrier-ring being arranged to be supported in the retaining-groove of said ring-frame for adjustment circumferentially therein; adjustable-means comprising bolts secured to said carrier-ring and arranged to extend outwardly radially through the circumferential slots of said xed ring-frame, and flanged bushings supported by said bolts in said circumferential slots of said ring-frame said fianged bushings being arranged to bind against the periphery of said ringframe when said bolts are tightened to hold said carrier-frame in a predetermined adjusted position therein; forming-rolls; brackets constructed and arranged to support said formingrolls
  • a fixed ring-frame having an internal annular retaining-groove and circumferential slots in the periphery of said ring-frame; a carrier-ring having circumferential slots in the periphery thereof constructed and arranged to coincide with the circumferential slots of said ring-frame said carrier-ring being arranged to be supported in the retaining-groove of said ringframe for adjustment circumferentially therein; adjustable-means comprising bolts secured tov said carrier-ring and arranged to extend outwardly radiallythrough the circumferential slots of said fixed ring-frame, and flanged bushings supported by said bolts in said circumferential slots of said ring-frame said flanged bushings being arranged toY bind against the .periphery of said ring-frame when said bolts are tightened to hold said carrier-frame in a predetermined adjusted position therein; forming-rolls; brackets constructed and arranged to support said forming-roll

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Description

Patented `an. 1'1, 1.949
SUPPLEMENTARY FORMING FOR STRIP-METAL FORMING ,MACHINES Fred Himmel and Isidore Himmel, New Haven,
Conn., assignors to The Himmel ,Brothers Company, Hamden, Conn., a corporation lci? necticut Application May 2'5, 1946, serial No. 672,284
7 Claims. 1
This invention relates lto supplementary forming means for strip-metal forming machines and particularly to machines for forming str-ips for store-front construction. Owing to variations in the composition oi -metals and particularly stainless steel, strips coming from a forming machine do not retain the desired shape in cross section and have a tendency to curve or bow.
The object of this invention is to provide means for lsupplementall-y forming the strips to overcome variations in the alignment of the preformed strip, and the invention consists in the formation and arrangement of parts as hereinafter described and particularly recited 4in the claims.
With the above Aand other objects i-n view, as will appear to those skilled in the art from the present disclosure, this invention includes all features in the said disclosure which vare novel over the prior art.
In the accompanying drawings, in which certain modes of carrying out the present invention are shown for illustrative purposes:
Fig. 1 is a front View of supplementary forming mechanism for strip-forming machines, vconstructed in accordance with the present invention;
Fig. 2 is a sectional view on the Aline 2 2 of Fig. 1;
Fig. 3 is a sectional view on Athe line 3.-3 of prising a header I9 and forming rolls I3, I4 andV I corresponding to the Vpreforming rollsof the metal-forming machine and in line therewith. The roller-carrier vring I2 when Aturned circumierentially tothe `desired position in the ring frame I0, is adapted to be secured by bolts I6. To this end, the ring-frame member I0 has an annular retaining-groove |0| on its inside wall intermediate the vertical front and back faces thereof as shown in Figs. 1 .2 and "3; and a pair ofsubstantially-diametrically-opposite arcuate" slots |02 in the vertical `:plane of its rim, each slot being symmetrical with respect to a diameter substantially at right angles to the vertical diameter of the rfrlg,` as .clearly shown in Fig. l1. In addition @to the slots.I 1:02,: the ring-frame I0 is provided with a pairnof screw-threaded radial apertures |03 on the upper edge thereof and on Opposite sides respectively of itsvertical axis for accommodating locking-screws |04 for the purpose hereinafter described.
A carrier-ring I2 is rotatably mounted in the vertical plane of the ring-frame I0, the periphery .of the carrier-ring .engaging the annular retaining-groove |01 of the ring-frame. The carrier-ring I2 is provided with a pair of substantially-diametrically-opposite slots |20 'in the ver-.- tical plane of its rim adapted to coincide -with the corresponding slots |02 of the ring-frame I0, as indicated clearly in Figs.- 1 and 2. The carrier,- ring I2 is also provided with a pair of screwthreaded radial aperturesIZl adjacent its lower edge and on opposite sides respectively of its vertical axis ior accommodating a pair oi adjustingscrews I0 having enlarged heads |00. Each adjusting-screw is adaptedA to be mounted in a flanged bushing IGI', one of which is mounted lin each respective slot |02 of the 'ring-frame' I0, the flange of'each bushing `II-I 'being adapted to span the sides of its respective slot |02 to support the bushing for circumferential movement therein. Thus, by tightening up the adjusting-screw I0, the enlarged heads thereof will bind the danges of the bushings lagainst the periphery of the ring-frame I0 and thereby hold the carrierring|2 rmly in a predetermined adjusted position circumferentially therein. Additional locking-means is providedv by Ythe screws |04V which are 4threadedly engaged in the radial apertures |03 of `the ring-frame I0 and adapted to ybe turned down against the periphery of the carrierring to lock the latter therein. To change vthe adjustment of the carrier-ring, it is only necessary to loosen the adjusting-screw I0 and the locking-screws |04, whereupon the carrier-ring maybe rotated `freely in `the `ring-frame I0, the flanged bushings |'6I and their respective adjusting-screws I0 traveling circumferentially in the arcuate slots |02 thereof.
`The forming rolls I4 and I5 are respectively mounted in brackets I' and I8 which may be adjusted circumferentially within the carrier ring I2 to give the rolls the desired inclination. To this end, the inner wall of the carrier-ring I2 is providedv with an annular non-circular retaining-groove |212 `(see'flig. 2) in which is engaged the outer peripheral surface of each bracket. Each bracket I1 and I8 is adapted to be secured in a predetermined adjusted position circumferentially in its respective retaininggroove of the carrier-ring by means of an adjusting-screw |62 and flanged bushing |63, each flanged bushing being adapted to be supported in one of the respective arcuate slots |20 of the carrier-ring l2 and to be held in any predetermined adjusted position therein by tightening up its respective adjusting-screw |62 to bind the flange of the bushing against the periphery of the carrier-ring, both the flanged bushing and its adjusting-screw being accommodated for circumferential displacement with respect to the xed ring-frame by moving freely in the arcuate slots |02 thereof which, as pointed out above, coincide with the arcuate slots |20 of the carrier-ring. Thus, each bracket I1 and |8 may be adjusted circumferentially in the carrier-ring I2 independently of each other and of the adjustment of the carrier-ring |2 within the xed ring-frame I0.
Supported within the carrier-ring between the supplementary forming-means, as shown in Figs. 2 and 4 and arranged to rotate therewith, is a shaping-block 20 which has inclined side walls 2| and 22, the lower roll I3 and the header I9 being adjustable with relation to the reshaping-block 20. 1
Referring to Fig. of the drawings, the strip as it comes from the preforming-rolls has inclined walls, as indicated, for instance, by broken lines A. These walls, in passing between the supplementary forming rolls |3, |4 and I5, will assume the position indicated by broken lines B or vice versa, but in either case, the resiliency oi the metal will restore the walls to the desired position of rest as shown by full lines.
This supplementary'strip-forming device with readily adjustable forming rolls will assure the desired configuration of a strip and straighten the strip if it tends to bow or curve as it comes from the first forming-rolls. Should the strip bow, curve or twist on leaving the preforming rolls,` the carrier-ring |2, together with the supplementary forming rolls I3, |4 and |5, may be rotatably adjusted within -the i'lxed ring frame IB to compensate for any such curving or twisting and thereby produce a longitudinally-straight strip.
The invention may be carried out in other specie ways than those herein set forth without departing from the spirit and essential characteristics of the invention, and the present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.
We claim:
1. In a device for straightening a preformed metal strip, a ring-frame, a carrier-ring adjustably mounted for rotation in the ring-frame, a shaping-block mounted in the said carrier-ring for rotation therewith; and supplementary forming-means comprising an under-roll, two siderolls, and a header, said rolls and header being adjustably mounted on said carrier-ring for movement relative to said shaping-block to supplementally form a strip passed between said supplementary forming-means.`
2. In a device for straightening a preformed metal strip: a fixed ring-frame; a carrier-ring; means arranged to support said carrier-ring for adjustment circumferentially Within said fixed ring-frame; adjustable means cooperatively associated with said ring-frame and said carrierring to secure said carrier-ring in a predetermined adjusted position circumferentially within said fixed ring-frame; forming rolls; means arranged to support said forming-rolls Within said carrier-ring for adjustment circumferentially therein; and adjustable-means cooperatively associated with said forming-rolls supporting-means and said carrier-ring to secure said forming-rolls supporting-means in predetermined adjusted positions circumferentially within said carrier-ring;
3. In a device for straightening a preformed metal strip: a fixed ring-frame; a carrier-ring having circumferential slots in the periphery thereof; means arranged to support said carrierring for adjustment circumferentially within said xed ring-frame; adjustable-means cooperatively associated with said ring-frame and said carrierring to secure said carrier-ring in a predetermined adjusted position circumferentially within said fixed ring-frame; forming rolls; brackets constructed and arranged to support said forming-rolls Within said carrier-ring for adjustment circumferentially therein; and adjustable-bolts secured to said brackets and arranged to extend outwardly radially through the circumferential slots of said carrier-ring to secure said brackets in predetermined adjusted positions circumferentially within said carrier-ring.
4. In a device for straightening a preformed metal strip: a fixed ring-frame; a carrier-ring having an internal annular retaining-groove and circumferential slots in the periphery of said carrier-ring means arranged to support said carrierring for adjustment circumferentially within said fixed ring-frame; adjustable-means cooperatively associated with said ring-frame and said carrierring to secure said carrier-ring in a predetermined adjusted position circurnferentially within said fixed ring-frame; forming-rolls; brackets to support said forming-rolls, said .brackets having arcuate edges arranged to engage in the annular retaining-groove of said carrier-ring for adjustment circumferentially therein; and adjustable-means comprising bolts secured to said brackets and arranged to extend radially outwardly through the circumferential slots of said carrier-ring, and flanged bushings supported .by said bolts in'said arcuate slots, said flanged bushings being arranged to bind against the periphery of said carrier-ring when said bolts are tightened to hold said brackets in a predetermined adjusted position within said carrier-ring.
5. In a device for straightening a preformed metal strip: a fixed ring-frame having circumferential slots in the periphery thereof; a carrierring; means arranged to support said carrier-ring for adjustment circumferentially within said xed ring-frame; adjustable-means comprising bolts secured to said carrier-ring` and arranged to extend outwardly radially through the circumferential slots of said fixed ring-frame to secure said carrier-ring in predetermined adjusted positions circumferentially within said ring-frame; forming-rolls; means constructed and arranged to support said forming-rolls within said carrierring for adjustment circumferentially therein; and adjustable-means cooperatively associated with said forming-rolls supporting-means and said carrier-ringl to secure said forming-rolls supporting-means in ,predetermined adjusted positions circumferentially within said carrier-ring.
6. In a device for straightening a preformed metal strip: a xed ring-frame having an internal annular retaining-groove and circumferential slots in the periphery of said ring-frame; a carrier-ring having circumferential slots inthe periphery thereof constructed and arranged to coincide with the circumferential slots of said ringframe said carrier-ring being arranged to be supported in the retaining-groove of said ring-frame for adjustment circumferentially therein; adjustable-means comprising bolts secured to said carrier-ring and arranged to extend outwardly radially through the circumferential slots of said xed ring-frame, and flanged bushings supported by said bolts in said circumferential slots of said ring-frame said fianged bushings being arranged to bind against the periphery of said ringframe when said bolts are tightened to hold said carrier-frame in a predetermined adjusted position therein; forming-rolls; brackets constructed and arranged to support said formingrolls within said carrier-ring for adjustment circumferentially therein; and adjustable-bolts secured to said :brackets and extending outwardly radially through the circumferential slots of said carrier-ring and said ring-frame to secure said brackets in a predetermined adjusted position circumferentially within said carrier-ring.
7. In a device for straightening a preformed metal strip: a fixed ring-frame having an internal annular retaining-groove and circumferential slots in the periphery of said ring-frame; a carrier-ring having circumferential slots in the periphery thereof constructed and arranged to coincide with the circumferential slots of said ring-frame said carrier-ring being arranged to be supported in the retaining-groove of said ringframe for adjustment circumferentially therein; adjustable-means comprising bolts secured tov said carrier-ring and arranged to extend outwardly radiallythrough the circumferential slots of said fixed ring-frame, and flanged bushings supported by said bolts in said circumferential slots of said ring-frame said flanged bushings being arranged toY bind against the .periphery of said ring-frame when said bolts are tightened to hold said carrier-frame in a predetermined adjusted position therein; forming-rolls; brackets constructed and arranged to support said forming-rolls within said carrier-ring for adjustment circumferentially therein; and adjustable-means comprising bolts secured to said brackets and extending outwardlyradially through the circumferential slots of said carrier-ring and said ringframe, and hanged bushings supported .by said bolts in the circumferential slots of said carrierring and said ring-frame said flanged bushings being arranged to bind against the periphery of REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 581,375 Shann et al Apr. 27, 1897 606,306 Shann et al June 28, 1898 1,263,896 Hutchinson i Apr. 23, 1918 1,366,331 Palmeret al. Jan. 18, 1921
US672284A 1946-05-25 1946-05-25 Supplementary forming means for strip-metal forming machines Expired - Lifetime US2458906A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792799A (en) * 1949-06-09 1957-05-21 United States Steel Corp Seam welding apparatus
US2974710A (en) * 1958-02-10 1961-03-14 Dow Chemical Co Metal working device
DE1264936B (en) * 1956-09-11 1968-03-28 Sutton Eng Co Device for re-bending thin-walled metal profiles into their sol shape
FR2308439A1 (en) * 1975-04-25 1976-11-19 Amada Co Ltd MACHINE WITH ROLLERS FOR BENDING OR BENDING METAL SHEETS OR SIMILAR ELEMENTS
FR2366891A1 (en) * 1976-10-05 1978-05-05 Masch & Werkzeugbau Gmbh PROFILING MACHINE
US4663957A (en) * 1984-10-08 1987-05-12 Aisin Seiki Kabushiki Kaisha Roll stand for a cold forming apparatus
US5199291A (en) * 1992-03-26 1993-04-06 Tishken Products Co. Roll forming machine with flare control unit
WO1995029020A1 (en) * 1994-04-20 1995-11-02 Knudson Gary Art Half-round gutter making apparatus
US6289708B1 (en) 1996-12-17 2001-09-18 Samesor Oy Apparatus for roll forming purlins and the like from a metal strip
US20070137276A1 (en) * 2005-12-15 2007-06-21 Englert, Inc. Longitudinal curvature adjustment assembly for a rain gutter roll forming machine
US20110174044A1 (en) * 2008-10-01 2011-07-21 Dong Sun Kim Apparatus for manufacturing window/door frames or bent metal products
US20110179842A1 (en) * 2008-10-02 2011-07-28 Data M Sheet Metal Solutions Gmbh System for cold roll forming profiles having variable cross-sections

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US581375A (en) * 1897-04-27 Velopment syndicate
US606306A (en) * 1898-06-28 Bending- apparatus for ship frames
US1263896A (en) * 1916-10-05 1918-04-23 Morton C Hutchinson Boiler-retarder machine.
US1366331A (en) * 1918-06-07 1921-01-18 Robert K Palmer Flange-bending machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US581375A (en) * 1897-04-27 Velopment syndicate
US606306A (en) * 1898-06-28 Bending- apparatus for ship frames
US1263896A (en) * 1916-10-05 1918-04-23 Morton C Hutchinson Boiler-retarder machine.
US1366331A (en) * 1918-06-07 1921-01-18 Robert K Palmer Flange-bending machine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792799A (en) * 1949-06-09 1957-05-21 United States Steel Corp Seam welding apparatus
DE1264936B (en) * 1956-09-11 1968-03-28 Sutton Eng Co Device for re-bending thin-walled metal profiles into their sol shape
US2974710A (en) * 1958-02-10 1961-03-14 Dow Chemical Co Metal working device
FR2308439A1 (en) * 1975-04-25 1976-11-19 Amada Co Ltd MACHINE WITH ROLLERS FOR BENDING OR BENDING METAL SHEETS OR SIMILAR ELEMENTS
FR2366891A1 (en) * 1976-10-05 1978-05-05 Masch & Werkzeugbau Gmbh PROFILING MACHINE
US4663957A (en) * 1984-10-08 1987-05-12 Aisin Seiki Kabushiki Kaisha Roll stand for a cold forming apparatus
US5199291A (en) * 1992-03-26 1993-04-06 Tishken Products Co. Roll forming machine with flare control unit
WO1995029020A1 (en) * 1994-04-20 1995-11-02 Knudson Gary Art Half-round gutter making apparatus
US5551272A (en) * 1994-04-20 1996-09-03 Knudson; Gary A. Half-round gutter making apparatus
US6289708B1 (en) 1996-12-17 2001-09-18 Samesor Oy Apparatus for roll forming purlins and the like from a metal strip
US20070137276A1 (en) * 2005-12-15 2007-06-21 Englert, Inc. Longitudinal curvature adjustment assembly for a rain gutter roll forming machine
US7275403B2 (en) * 2005-12-15 2007-10-02 Englert, Inc. Longitudinal curvature adjustment assembly for a rain gutter roll forming machine
US20110174044A1 (en) * 2008-10-01 2011-07-21 Dong Sun Kim Apparatus for manufacturing window/door frames or bent metal products
US20110179842A1 (en) * 2008-10-02 2011-07-28 Data M Sheet Metal Solutions Gmbh System for cold roll forming profiles having variable cross-sections

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