Due to its large size, the internal structure of the freezer often requires additional strengthening beams to ensure stability. The challenge of the forming machine for reinforcing beams lies in the straightness of the ultra-long plates and their resistance to twisting.
Common problems:
After forming, the beams slightly twist, which will affect the smoothness of the door or drawer when installed in the freezer;
During production, due to temperature or tension variations, the beam material may undergo arch-shaped deformation;
The larger the length, the more obvious the error becomes, and a deviation of just a few millimeters may be magnified throughout the entire machine.
Key solutions:
Use the multi-point straightening process and configure an online straightening device at the forming end;
Precisely control the tension between passes to avoid local stress accumulation;
The roller surface needs to be hardened to ensure consistency in size during long-term operation.
For customers, these details determine whether the structural components of the freezer can maintain stable assembly accuracy during mass production, and directly affect the subsequent assembly efficiency and product quality.