US3777530A - Method of weakening strip material in section rolling processes - Google Patents

Method of weakening strip material in section rolling processes Download PDF

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Publication number
US3777530A
US3777530A US00127965A US3777530DA US3777530A US 3777530 A US3777530 A US 3777530A US 00127965 A US00127965 A US 00127965A US 3777530D A US3777530D A US 3777530DA US 3777530 A US3777530 A US 3777530A
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United States
Prior art keywords
strip
grooves
rolling
section
length
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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
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US00127965A
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English (en)
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S Jansson
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Individual
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/156—Making tubes with wall irregularities
    • B21C37/157—Perforations
    • 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
    • B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
    • B21D13/045—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling the corrugations being parallel to the feeding movement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49789—Obtaining plural product pieces from unitary workpiece
    • Y10T29/4979—Breaking through weakened portion

Definitions

  • ABSTRACT A method for section rolling metal strip in the longitudinal direction thereof, said strip being weakened prior to rolling, along lines which determine the division of the finished product into required lengths.
  • the weakening of the strip is effected in such a way that it determines the moment during the actual rolling operation when the division shall take place.
  • the present invention is concerned with a method of, when section rolling strip metal in the longitudinal direction thereof, weakening said strip prior to rolling, along lines which determine the division of the finished product in required lengths.
  • the sheet metal is weakened by score lines, along which the material is intended to break subsequent to being sectioned or shaped in the longitudinal direction thereof.
  • the sections are delivered in lengths which have been weakened at specific positions and which are intended to be severed by means of special mechanical devices at at least one of said positions to adapt to local conditions.
  • the section, subsequent to being worked in a section rolling mill or the like must be subjected manually to mechanical operations, whereby'the edges where the break occurs are left ragged and possibly the surface finish damaged.
  • the invention is therefore .concerned with a method which is not encumbered with the aforementioned disadvantages, and is mainly characterized in that weakening of the material is effected in such a way thatit determines the moment during the actual rolling operation when the division shall take place.
  • weakening of the material is effected by scoring the surface of the metal strip on one or both sides thereof, the depth of the score line determining the moment in the rolling operation at which the strip is divided. No damage of the aforementioned type occurs when dividing the strip as advocated by the present invention.
  • FIG. I is a diagrammatic plan view of apparatus according to the present invention in combination with a section nil];
  • FIG. 2 is an enlarged fragmentary perspective view of a corrugated profile rolled by the section mill of FIG. 1;
  • FIG. 3 is a diagrammatic partly sectional side view of the scoringmechanism shown in FIG. 1.
  • a drum or reel 1 serves as a supply for metal strip 2 which is fed in the direction of the arrow in FIG. I through a scoring mechanism 3 for the metal strip which may be hot or cold rolled and also surface treated.
  • travelling supports 4 carry cutting rollers 5 thereon which only partially cut through the strip in a manner that will be described in greater detail later on.
  • the scored strip then continues in the direction of the arrow in FIG. 1, to asection mill 6 which in this instance comprises three roll pairs 7,. 8 and 9, each roll pair being comprised by two complementarily corrugated rolls which impart to the strip 2 a corrugated profile, shown in FIG. 2, as the strip passes between the rolls.
  • asection mill 6 which in this instance comprises three roll pairs 7,. 8 and 9, each roll pair being comprised by two complementarily corrugated rolls which impart to the strip 2 a corrugated profile, shown in FIG. 2, as the strip passes between the rolls.
  • the travelling supports 4 move along horizontal opposed U-shaped channels 11 and 12 on wheels 13 so that. supports 4 reciprocate across the strip 2.
  • the two supports 4 move synchronously with each other and in the same vertical plane and are coupled together by means of roller chains (not shown) which pass over gear wheels and runners at the ends of each pair of channels 11 and 12 and which by means of hydraulic or other drive means move the supports and also the rollers 5 across a strip 2 during their scoring operation.
  • roller chains (not shown) which pass over gear wheels and runners at the ends of each pair of channels 11 and 12 and which by means of hydraulic or other drive means move the supports and also the rollers 5 across a strip 2 during their scoring operation.
  • Each pair of channels is adjustable both laterally and vertically with respect to the strip thereby to adjust the depth to which the rollers 5 weakenthe strip and to make sure that the rollers 5 operate in the same vertical plane.
  • the channels 11, 12 can also be adjusted to any desired angle in relation to the longitudinal direction of the strip, so that the ad vance of the strip need not be halted during scoring.
  • the scoring device 3 may be shifted from its position shown in FIG. 3 perpendicular to strip 2, to an oblique position as seen in FIG. I, so that the scoring rollers 5 will have a component of movement in the direction of the arrow in FIG. I but no relative movement lengthwise of the strip itself. In this way, the scoring lines are maintained perpendicualr to the strip.
  • the desired score depth is set by means of special setting means.
  • the strip 2, before being shaped .in the section mill 6, is scored by the cutting rollers such as 5 to a depth which is decided and set with regard to the thickness and hardness of the metal strip.
  • the depth to which the strip is scored is so adjusted according to the invention that the strip 2, for the purpose of obtaining the requisite guidance of said strip in the section mil 6, which is of great importance regarding the shape of the section passes undivided through at least two pairs of rolls such as the pairs presenting rolls 7 and 8 but is divided gradually from the center of the score line during its movement through said pair so that the strip is completely severed at the position most suitable with regard to the shape of the section and which in the exemplary embodiment is shown on the drawing by line 10.
  • the invention is based on co-operation of the scoring mechanism 3 with the profiling mill 6, the strip material 2 being compressed along the scores by the cutting discs so that the atomic structure of the material remaining in the score is altered.
  • the yield point of the material is surpassed and during rolling of the scores 10 the breaking point of the material along the scores is surpassed. If, for example, sheet material having a thickness of 1 mm is rolled, the cutting discs on the opposite sides of the material are set to cut to a depth such that in the scores there remains a thick- I mess of material of 0.2 mm and the breaking point of a score is reached after the material passes the fifth pair of rolling rollers.
  • the cutting depth of the discs 5 is set so that after scoring the thickness of material remaining in the score is 0.1 mm the breaking point of the score will be reached after the material has, for example, passed the second pair of rolling rollers.
  • the cutting depth of the cutting discs 5 the length of the final profile rolled section can be determined.
  • a method of section-rolling metal strip in the longitudinal direction thereof to form finished products of required lengths comprising advancing a metal strip in the direction of its length, cutting grooves across the metal strip in a direction perpendicular to the length of the strip without severing sections from the strip, and then passing the grooved strip in the direction of its length through a succession of strip-profiling rolls that form corrugations in the strip with the length of the corrugations extending parallel to the length of the strip, said grooves being cut to such depth that the portions of the strip between the grooves are separated from each other in said succession of rolls without bending of the strip about said grooves.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
US00127965A 1968-03-11 1971-03-25 Method of weakening strip material in section rolling processes Expired - Lifetime US3777530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE03179/68A SE331975B (de) 1968-03-11 1968-03-11

Publications (1)

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US3777530A true US3777530A (en) 1973-12-11

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ID=20261557

Family Applications (1)

Application Number Title Priority Date Filing Date
US00127965A Expired - Lifetime US3777530A (en) 1968-03-11 1971-03-25 Method of weakening strip material in section rolling processes

Country Status (5)

Country Link
US (1) US3777530A (de)
DE (1) DE1912269A1 (de)
FR (1) FR2003669A1 (de)
GB (1) GB1228565A (de)
SE (1) SE331975B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6345425B1 (en) 1999-12-09 2002-02-12 Shape Corporation Rollformer with transverse scorer
US20100024508A1 (en) * 2007-02-01 2010-02-04 Frank Opferkuch Tubes and method and apparatus for producing tubes
US20120255336A1 (en) * 2011-04-06 2012-10-11 Chauncey Edward W Systems and methods for corrugating a metallic tape
US10933455B2 (en) * 2016-07-07 2021-03-02 Pacific Roller Die Company, Inc. Tubular core and method
WO2023000004A3 (de) * 2021-07-23 2023-03-16 Julius Blum Gmbh Verfahren zur herstellung wenigstens einer bauteilkomponente für einen möbelbeschlag
WO2024112985A1 (de) * 2022-12-02 2024-06-06 Julius Blum Gmbh Verfahren zur herstellung wenigstens einer bauteilkomponente für einen möbelbeschlag

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1267681B1 (it) * 1994-02-09 1997-02-07 Colpo & Zilio Srl Chiusura per bracciali, collane e simili.
DE19846896B4 (de) * 1998-10-12 2004-12-09 Siemens Ag Verfahren und Vorrichtung zum Trennen eines Metallbandes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582063A (en) * 1949-04-06 1952-01-08 Elastic Stop Nut Corp Method of making short pins
US2708958A (en) * 1949-11-15 1955-05-24 Robertson Co H H Method of and apparatus for making a steel floor
US2766516A (en) * 1951-11-19 1956-10-16 Elastic Stop Nut Corp Manufacture of hollow spring pins
US3031671A (en) * 1956-12-05 1962-05-01 Acme Steel Co Spring clip fastener and method of forming same
US3144709A (en) * 1959-10-13 1964-08-18 Continental Can Co Preparation of sheet stock having longitudinal internal weakening therein
US3155300A (en) * 1961-07-13 1964-11-03 Forgings And Presswork Ltd Method for parting-off a length from metal bar stock

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582063A (en) * 1949-04-06 1952-01-08 Elastic Stop Nut Corp Method of making short pins
US2708958A (en) * 1949-11-15 1955-05-24 Robertson Co H H Method of and apparatus for making a steel floor
US2766516A (en) * 1951-11-19 1956-10-16 Elastic Stop Nut Corp Manufacture of hollow spring pins
US3031671A (en) * 1956-12-05 1962-05-01 Acme Steel Co Spring clip fastener and method of forming same
US3144709A (en) * 1959-10-13 1964-08-18 Continental Can Co Preparation of sheet stock having longitudinal internal weakening therein
US3155300A (en) * 1961-07-13 1964-11-03 Forgings And Presswork Ltd Method for parting-off a length from metal bar stock

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6345425B1 (en) 1999-12-09 2002-02-12 Shape Corporation Rollformer with transverse scorer
US6742234B2 (en) 1999-12-09 2004-06-01 Shape Corporation Method of rollforming with transverse scorer and dimpler
US20100024508A1 (en) * 2007-02-01 2010-02-04 Frank Opferkuch Tubes and method and apparatus for producing tubes
US8561451B2 (en) * 2007-02-01 2013-10-22 Modine Manufacturing Company Tubes and method and apparatus for producing tubes
US20120255336A1 (en) * 2011-04-06 2012-10-11 Chauncey Edward W Systems and methods for corrugating a metallic tape
US8800342B2 (en) * 2011-04-06 2014-08-12 Edward W. Chauncey Method of preparing a metallic tape for use on a joint
US10933455B2 (en) * 2016-07-07 2021-03-02 Pacific Roller Die Company, Inc. Tubular core and method
WO2023000004A3 (de) * 2021-07-23 2023-03-16 Julius Blum Gmbh Verfahren zur herstellung wenigstens einer bauteilkomponente für einen möbelbeschlag
WO2024112985A1 (de) * 2022-12-02 2024-06-06 Julius Blum Gmbh Verfahren zur herstellung wenigstens einer bauteilkomponente für einen möbelbeschlag

Also Published As

Publication number Publication date
SE331975B (de) 1971-01-25
FR2003669A1 (de) 1969-11-14
DE1912269A1 (de) 1969-10-02
GB1228565A (de) 1971-04-15

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