Hydraulic Plate Bending Roll, also known as a plate rolling machine or a plate roll, is a piece of industrial machinery used to bend and shape metal plates or sheets. It is commonly used in metal fabrication, construction, and manufacturing processes to create cylindrical or conical shapes from flat metal sheets. The operation of a hydraulic plate bending roll involves several key components and steps:
Frame and Base:The machine typically consists of a robust frame and a stable base to provide the necessary support and stability during the bending process.
Rolls:The hydraulic plate bending roll has three primary rolls: two large rolls positioned vertically on either side and a smaller, adjustable top roll situated horizontally. The top roll can be moved up and down to adjust the bending radius.
Hydraulic System:Hydraulic cylinders are used to control the movement of the rolls. The hydraulic system applies force to the rolls, allowing them to press against the metal plate to initiate the bending process.
Material Loading:The operator starts by placing a flat metal plate or sheet between the two bottom rolls. The width of the plate should be less than the distance between the bottom rolls.
Pre-Bending:Pre-bending is the initial step, where the bottom rolls start to pinch the plate. The hydraulic system exerts pressure on the rolls, causing them to bend the plate slightly. This is done to ensure a more accurate final bend.
Main Bending:The hydraulic system continues to apply pressure as the plate is fed through the rolls. The top roll is adjusted to achieve the desired radius of the bend. The plate is gradually rolled through the machine, and as it passes through the rolls, it takes on the desired curved shape.
Repeat Passes:In many cases, multiple passes may be required to achieve the desired curvature, especially for thicker plates or tighter radius bends. The operator adjusts the top roll and repeats the process until the desired shape is achieved.
