PL447893A1 - Method of bending a sheet metal part with constant curvatures - Google Patents

Method of bending a sheet metal part with constant curvatures

Info

Publication number
PL447893A1
PL447893A1 PL447893A PL44789324A PL447893A1 PL 447893 A1 PL447893 A1 PL 447893A1 PL 447893 A PL447893 A PL 447893A PL 44789324 A PL44789324 A PL 44789324A PL 447893 A1 PL447893 A1 PL 447893A1
Authority
PL
Poland
Prior art keywords
sheet metal
curvature
radius
bending
determined
Prior art date
Application number
PL447893A
Other languages
Polish (pl)
Inventor
Stanisław Kut
Original Assignee
Politechnika Rzeszowska im. Ignacego Łukasiewicza
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 Politechnika Rzeszowska im. Ignacego Łukasiewicza filed Critical Politechnika Rzeszowska im. Ignacego Łukasiewicza
Priority to PL447893A priority Critical patent/PL447893A1/en
Publication of PL447893A1 publication Critical patent/PL447893A1/en

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
    • B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/70—Length control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/08—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-force
    • 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
    • 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
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
    • B21D5/146—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers one roll being covered with deformable material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

Sposób gięcia części blaszanej o stałych krzywiznach prowadzi się tak, że określa się promień krzywizny oraz długość fragmentu pasa blachy (11). Następnie określa się kąt obrotu (φ) walca dolnego (1). Dla stosunku wybranego przesunięcia (f) osi obrotu walców (1, 2) do wielkości promienia zewnętrznego (D) walca górnego (2) wyznacza się zależność wartości siły docisku(P(φ)) walców (1, 2) od krzywizny gięcia i kolejno, z tej zależności, określa się wartość siły docisku (P(φ)). Poprzez regulator ciśnienia hydraulicznego nastawia się ciśnienie w siłownikach, a następnie sterownikiem odczytuje się wskazanie czujnika kąta położenia walca dolnego (1) i uruchamia się silnik, który poprzez przekładnię wprawia w ruch walec dolny i rozpoczyna się gięcie blachy (11), które prowadzi się do uzyskania promienia krzywizny na określonej długości fragmentu pasa blachy (11). Walec dolny (1) zatrzymuje się w położeniu kątowym, w którym się znajduje i określa się kolejny promień krzywizny oraz długość kolejnego fragmentu pasa blachy (11) do utworzenia na nim tego nowego promienia krzywizny. Czynności powtarza się do uzyskania stałych promieni krzywizny, na określonych długościach fragmentów pasa giętej blachy (11).The method of bending a sheet metal part with constant curvature is carried out by determining the radius of curvature and the length of a section of the sheet metal strip (11). Next, the angle of rotation (φ) of the lower roll (1) is determined. For the ratio of the selected offset (f) of the rotation axis of the rolls (1, 2) to the external radius (D) of the upper roll (2), the relationship between the value of the pressing force (P(φ)) of the rolls (1, 2) and the bending curvature is determined, and subsequently, from this relationship, the value of the pressing force (P(φ)) is determined. The pressure in the actuators is set via a hydraulic pressure regulator, and then the controller reads the reading of the position angle sensor of the lower roll (1), and the motor is started, which, through a gear, sets the lower roll in motion and begins bending the sheet metal (11), which is carried out until the radius of curvature is achieved along a specified length of the sheet metal strip (11). The lower roller (1) stops at its current angular position, and the next radius of curvature and the length of the next sheet metal strip (11) are determined to create this new radius of curvature. This process is repeated until constant radii of curvature are achieved, along the specified lengths of the bent sheet metal strip (11).

PL447893A 2024-02-29 2024-02-29 Method of bending a sheet metal part with constant curvatures PL447893A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL447893A PL447893A1 (en) 2024-02-29 2024-02-29 Method of bending a sheet metal part with constant curvatures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL447893A PL447893A1 (en) 2024-02-29 2024-02-29 Method of bending a sheet metal part with constant curvatures

Publications (1)

Publication Number Publication Date
PL447893A1 true PL447893A1 (en) 2025-09-01

Family

ID=96877559

Family Applications (1)

Application Number Title Priority Date Filing Date
PL447893A PL447893A1 (en) 2024-02-29 2024-02-29 Method of bending a sheet metal part with constant curvatures

Country Status (1)

Country Link
PL (1) PL447893A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5586608A (en) * 1963-12-10 1980-06-30 Gen Electric Method for setting metal rolling mill
JPH10166066A (en) * 1996-12-10 1998-06-23 Dainippon Printing Co Ltd Rolling press equipment
KR20140121128A (en) * 2013-04-05 2014-10-15 씨아이에스(주) Roll pressure controlling appratus for rolling mill
JP2016073993A (en) * 2014-10-06 2016-05-12 株式会社日立製作所 Roll forming roll and roll forming method using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5586608A (en) * 1963-12-10 1980-06-30 Gen Electric Method for setting metal rolling mill
JPH10166066A (en) * 1996-12-10 1998-06-23 Dainippon Printing Co Ltd Rolling press equipment
KR20140121128A (en) * 2013-04-05 2014-10-15 씨아이에스(주) Roll pressure controlling appratus for rolling mill
JP2016073993A (en) * 2014-10-06 2016-05-12 株式会社日立製作所 Roll forming roll and roll forming method using the same

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