PL444851A1 - Method and device for straightening sheet metal - Google Patents

Method and device for straightening sheet metal

Info

Publication number
PL444851A1
PL444851A1 PL444851A PL44485123A PL444851A1 PL 444851 A1 PL444851 A1 PL 444851A1 PL 444851 A PL444851 A PL 444851A PL 44485123 A PL44485123 A PL 44485123A PL 444851 A1 PL444851 A1 PL 444851A1
Authority
PL
Poland
Prior art keywords
sheet
sheet metal
sensors
straightening
handles
Prior art date
Application number
PL444851A
Other languages
Polish (pl)
Inventor
Jakub Gróbarczyk
Wiesław Mieczkowski
Original Assignee
Serwistal Spółka Z Ograniczoną Odpowiedzialnością
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 Serwistal Spółka Z Ograniczoną Odpowiedzialnością filed Critical Serwistal Spółka Z Ograniczoną Odpowiedzialnością
Priority to PL444851A priority Critical patent/PL444851A1/en
Publication of PL444851A1 publication Critical patent/PL444851A1/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
    • 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
    • B21D25/00—Working sheet metal of limited length by stretching, e.g. for straightening
    • B21D25/02—Working sheet metal of limited length by stretching, e.g. for straightening by pulling over a die
    • 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
    • B21D25/00—Working sheet metal of limited length by stretching, e.g. for straightening
    • B21D25/04—Clamping arrangements
    • 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
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

Przedmiotem zgłoszenia jest sposób prostowania blach gdzie blachę poddaje się wstępnemu prostowaniu rolkowemu i następnie poddaje się prostowaniu naciągiem poprzez umieszczenie blachy pomiędzy dwoma uchwytami i ich rozsuwaniem w celu rozciągnięcia arkusza blachy charakteryzujący się tym, że do powierzchni rozciąganej blachy w odległości od 15 cm do 20 cm od siebie i do 20 cm od krawędzi blachy nad całą powierzchnią rozciąganego odcinka blachy przykłada się siatkę czujników mierzących poziom szumów Barkhasuena dla ustalenia wielkości naprężeń wewnętrznych w materiale i obserwuje się w sposób quasi - ciągły obraz szumów Barkhasuena rozciągając jednocześnie blachę i w momencie gdy obraz szumów Barkhasuena z czujników wskazuje, że dla wszystkich czujników uzyskano przekroczenie granicy plastyczności stali wstrzymuje się proces rozciągania. Zgłoszenie obejmuje także urządzenie do prostowania blach zawierające podajnik rolkowy na blachę dwa przeciwległe uchwyty do trzymania krawędzi blachy, mechanizm rozsuwania uchwytów charakteryzujący się tym, że nad podajnikiem utrzymującym rozciąganą blachę pomiędzy uchwytami umieszczone są na ramie czujniki mierzące poziom szumów Barkhausena i czujniki rozmieszone są na ramie v siatce w odległości od 15 cm do 20 cm od siebie przy czym czujniki połączone są układem sterowania z mechanizmem rozsuwania uchwytów.The subject of the application is a method of straightening sheet metal in which the sheet is subjected to initial roller straightening and then subjected to tension straightening by placing the sheet between two holders and spreading them apart to stretch the sheet, characterized by the fact that the surface of the stretched sheet is at a distance of 15 cm to 20 cm from each other and up to 20 cm from the edge of the sheet, a grid of sensors measuring the level of Barkhasuen noise is placed over the entire surface of the stretched section of sheet to determine the amount of internal stresses in the material and a quasi-continuous image of Barkhasuen noise is observed while simultaneously stretching the sheet and when the image of Barkhasuen noise from the sensors indicates that the steel yield point has been exceeded for all sensors, the stretching process is stopped. The application also covers a device for straightening sheet metal comprising a roller feeder for sheet metal, two opposite handles for holding the edges of the sheet metal, a mechanism for spreading the handles characterized by sensors measuring the Barkhausen noise level placed on the frame above the feeder holding the stretched sheet metal between the handles and sensors located on the frame in a grid at a distance of 15 cm to 20 cm from each other, with the sensors connected to the control system with the mechanism for extending the handles.

PL444851A 2023-05-10 2023-05-10 Method and device for straightening sheet metal PL444851A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL444851A PL444851A1 (en) 2023-05-10 2023-05-10 Method and device for straightening sheet metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL444851A PL444851A1 (en) 2023-05-10 2023-05-10 Method and device for straightening sheet metal

Publications (1)

Publication Number Publication Date
PL444851A1 true PL444851A1 (en) 2024-06-03

Family

ID=91332995

Family Applications (1)

Application Number Title Priority Date Filing Date
PL444851A PL444851A1 (en) 2023-05-10 2023-05-10 Method and device for straightening sheet metal

Country Status (1)

Country Link
PL (1) PL444851A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795006A1 (en) * 1999-06-21 2000-12-22 Bundy DEVICE FOR BENDING ELONGATED METAL ELEMENTS SUCH AS TUBES
EP2714296A1 (en) * 2011-05-23 2014-04-09 Schnell S.p.A. Apparatus for making stirrups
EP3028785A1 (en) * 2014-12-01 2016-06-08 WAFIOS Aktiengesellschaft Method for bending tubular workpieces attached to a flange and a bending machine for carrying out such a method
WO2021178797A1 (en) * 2020-03-06 2021-09-10 Greenlee Tools, Inc. Bender for bending a workpiece with automatic springback compensation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795006A1 (en) * 1999-06-21 2000-12-22 Bundy DEVICE FOR BENDING ELONGATED METAL ELEMENTS SUCH AS TUBES
EP2714296A1 (en) * 2011-05-23 2014-04-09 Schnell S.p.A. Apparatus for making stirrups
EP3028785A1 (en) * 2014-12-01 2016-06-08 WAFIOS Aktiengesellschaft Method for bending tubular workpieces attached to a flange and a bending machine for carrying out such a method
WO2021178797A1 (en) * 2020-03-06 2021-09-10 Greenlee Tools, Inc. Bender for bending a workpiece with automatic springback compensation

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