The stamping automation production line usually consists of four processes: unwinding, leveling, feeding, and stamping. Each process corresponds to a proprietary device, and the device that implements the unwinding process is called a material rack.

It is used to carry the roll and unwind the subsequent leveler. There are many types of material racks, and the only common material racks that can be used for medium and heavy plate materials are heavy material racks.

Heavy-duty material racks are affordable and easy to operate, but there is a problem when using a standard material rack to unwind a wide slab roll.

That is, the stress of the coil material is large, and the phenomenon of bulk material and loose coiling occurs during the unwinding process due to its own stress, which not only affects the normal unwinding feeding, but also easily causes personal safety accidents.

For this reason, when used for unwinding of thick sheet rolls, the heavy-duty material frame is equipped with a pneumatic pressing arm, which can be matched with the expansion and contraction reel of the heavy-duty material frame to ensure that the material frame always keeps the material roll unrolled during unwinding. The volume truly ensures the stability and safety of the unwinding.

The heavy material frame pneumatic pressing arm is composed of a bracket, a pressing wheel, a transmission device, a cylinder and a driving device, wherein the pressing wheel is arranged on the pressing arm bracket and connected to the driving device.

The driving device is powered by a cylinder, and the cylinder is connected by a transmission wheel through a transmission device. The material frame transmission device comprises a rotating shaft, a swinging arm and a connecting rod. The swinging arm and the connecting rod are fixed on the rotating shaft, and one end of the swinging arm away from the rotating shaft is connected with the pressing wheel, and the piston rod of the cylinder is connected with the connecting rod.

Two support shaft supports are arranged on the bracket, and two ends of the rotating shaft are fixed on the two rotating shaft supports, and the swing arm and the connecting rod are disposed between the two rotating shaft supports.

When the piston rod of the cylinder moves up or down, the connecting rod is pushed up or down. At this time, the rotating shaft of the fixed connecting rod rotates left or right, and the swing arm fixed on the rotating shaft swings accordingly, and the pressing wheel is pressed tightly. Or loosen the expansion and contraction of the material frame.

The heavy material frame press arm cylinder is connected with the solenoid valve, and the control end of the solenoid valve is connected to the control system for controlling the opening degree of the solenoid valve. The signal input end of the control system is respectively connected with the pressing button and the release button of the electric control box of the material frame.

Pressing the compression button or the release button, the control system receives a compression signal or a relaxation signal to control the solenoid valve opening to move the piston rod of the cylinder up or down.

The movement of the connecting rod is promoted, the pressing wheel is pressed or the expansion and contraction of the material frame is relaxed, and the operation of pressing and relaxing the pressing wheel is simple and convenient.

The heavy-duty material frame pressing arm adopts the cylinder as the device for driving the pressing wheel, and has the advantages of no pollution, small resistance, moderate pressure, and simple operation compared with the hydraulic pressure pressing method.

Specification:

Straigtening performance:

*1:(Pneumatic):Option in case of pneumatic mandrel expansion is provi