PBD Double Pinch steel plate rolling machine is a new type of equipment developed in the 1990s. It has been promoted globally due to its novel structure, reasonable force, and multiple functions. China introduced this technology from Sweden in 1992.
5 advantages of the PBD Double Pinch plate rolling machine: Multiple functions are the outstanding features of the PBD Double Pinch plate rolling machine, which is mainly manifested in the following 5 aspects.
Symmetrical three-roll plate bending machine function
The upper roll of the PBD Double Pinch three-roll plate bending machine is fixed to rotate, and the two lower rolls are raised and lowered around the fixed center arc. The two lower rolls can be conveniently adjusted through the operating table so that the three working rolls form a pyramid shape, which constitutes a symmetrical three-roll plate rolling machine and has the function of a symmetrical three-roll plate rolling machine.
Pre-bending at both ends
The two lower rolls of the PBD Double Pinch three-roll plate roller can be raised and lowered independently in an arc. During operation, one lower roller is raised to clamp the sheet, and the other lower roller is at the lower part for support, which constitutes an asymmetrical three-roll plate bending machine to realize pre-bending at one end of the sheet.
The lower roll on one side of the pre-bent sheet is lowered, and the lower roll on the other side is raised to form an asymmetrical three-roller plate bending machine at the other end of the pre-bent sheet.
Therefore, the PBD Double Pinch plate bending machine is a combination of two asymmetrical three-roll plate bending machines, which can complete the pre-bending of both ends and complete the roll-bending circle process of the plate with one feeding without turning around.
Cone rolling machine
A rolling cone device is installed at the body end of the upper roller on the discharge side of the equipment. The device is composed of a sleeve, a fixed ring, and a friction key. The principle is to decelerate through friction to realize the same speed of the large and small ends of the fan-shaped plate and complete the rolling and forming of the tapered workpiece.
Sheet metal centering
The sheet alignment of an ordinary three-roller sheet metal rolling machine mainly depends on the experience of the operator, so the work efficiency is low and waste products are easy to be produced. On one side of the PBD Double Pinch three-roller plate bending machine, there is a hydraulically operated flip centering mechanism, which stands up when centering the sheet, and then lays flat after centering. Accurately realize that the busbar of the sheet is parallel to the axis of the work roll to avoid skewing of the sheet.
Wide range of roll bending
The two lower rolls of the ordinary three-roll plate rolling machine are active rolls, and the upper roll is a passive roll. It is easy to slip when rolling thin plates and small-diameter workpieces. The standard stipulates that the thickness of the coil cannot be less than 1/3 of the maximum coil thickness specified in the parameters; the minimum drum diameter is 2.5 times the diameter of the upper roll.
However, the upper roll and the two lower rolls of the PBD Double Pinch three-roller plate bending machine are the main drive rolls. That is, the three-roller is fully driven. The roll diameter can reach 1.25 times the upper roll diameter. It can also be equipped with an inner bracket and an outer bracket to meet the needs of rolling.