Vertical plate clamps can be divided into two categories, one is a pair of jaw vertical roll clamp device, this vertical roll clamp device has been widely used in major domestic steel mills, Panzhihua cold rolling mill is also equipped with this type The vertical roll clamp device has a complicated structure, a heavy weight, and the spreader is unstable.
Another type is a pair of jaw automatic centering roll clamp device, which is composed of a crane hook hanging portion, a clamp link opening and closing lever portion, a clamp arm opening and closing drive portion, and a clamp arm portion. The method is to hang the vertical plate clamp on the crane hook, and open and close the clamp arm under no load to grasp and carry the steel.
In order to ensure the safety of steel coil handling, a locking device that cannot open the vertical plate clamp arm is provided; at the same time, a clamp minimum closing limit switch is installed on the upper part of the hanging beam or the upper part of the opening and closing drive device to prevent the motor from being overloaded. And clamp arm minimum closure detection. A clamp maximum closing limit switch is installed in the lower part of the hanging beam or in the lower part of the opening and closing drive device. Used to prevent motor overload and maximum closing detection of the clamp arm.