Roller leveller and metal plate leveling method
A roll-type straightening machine, metal plate technology, applied in the direction of metal rolling, etc., can solve the problem of inability to fully straighten the metal plate, etc.
Inactive Publication Date: 2012-08-29
JP STEEL PLANTECH CO
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Problems solved by technology
[0007] Therefore, conventionally, when straightening a metal plate with a thin plate thickness and a large yield stress, it is necessary to limit the pressing amount of the leveling roll to a value that allows the plate to pass through even with the torque of the leveling roll. As a result, the metal plate cannot be fully straightened
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[0025] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0026] figure 1 It is a side view showing the roller leveler according to one embodiment of the present invention, figure 2is its front view. The roller straightening machine 100 of the present embodiment performs straightening of cut sheet metal plates, and as shown in the figure, includes a housing 1, an upper frame 2 provided inside the housing 1, and a lower frame provided to support the housing 1. 3. Between the casing 1 and the upper frame 2, a hydraulic press-down cylinder (also referred to as a press cylinder) 4 is arranged. Under the upper frame 2, the upper roller frame is suspended by the upper roller clamping cylinder (not shown). 5. Below the upper roll frame 5 , a plurality of upper intermediate rolls 13 and upper leveling rolls 6 are arranged so as to be supported by the upper roll frame 5 . Both the upper intermediate roll 13 and the upper leveling...
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Abstract
The invention discloses a roller leveller and a metal plate leveling method. A roller leveller (100) that levels a slab-like metal plate (P) is provided with: a plurality of leveling rolls (6, 8), arranged staggered above and below the pass line of the metal plate (P) to be leveled, which sandwich the metal plate (P) and rotate to pass the metal plate (P) being leveled; a hydraulic press cylinder (4) that presses the metal plate (P) via the leveling rolls (6, 8); a plurality of intermediate rolls (13, 14) larger in diameter than the leveling rolls (6, 8), and disposed on the upper and lower outer sides of the plurality of leveling rolls (6, 8) so as to be in contact with the leveling rolls (6, 8); and driving devices (15) that respectively rotate the intermediate rolls (13, 14). While the metal plate (P) is pressed by the press cylinder (4) via the leveling rolls (6), the driving devices (15) rotatingly drive the intermediate rolls so as to transmit the driving force therefrom to the leveling rolls (6, 8) to pass the metal plate (P).
Description
technical field [0001] The present invention relates to a roll leveler for straightening a cut sheet metal plate and a method for straightening a metal plate. Background technique [0002] In the process of manufacturing a metal plate such as a steel plate, rolling, cooling, and the like are performed, but warping and wave-like deformation occur in the metal plate in the above-mentioned steps. Therefore, in order to correct such warping and wavy deformation to flatten the metal plate, a roll leveler in which a plurality of leveling rolls are arranged vertically in a zigzag shape is used (for example, Patent Document 1). [0003] Roller straightening machine passes the metal plate to be straightened with the upper roll pressed against the lower roll, or the lower roll pressed against the upper roll, and repeatedly bends the metal plate to make the metal plate warp. Curve and wave shapes are flattened. At this time, the pressing amount of each roll of the roll leveler is app...
Claims
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IPC IPC(8): B21D1/05
CPCB21D1/02B21D1/05B21B1/22
Inventor 阿部敬三
Owner JP STEEL PLANTECH CO