Cold bending equipment is a kind of mechanical equipment used for cold bending and molding of sheet metal. It usually includes components such as plate rollers, bending machines, and cutting machines.
These devices are usually used to manufacture metal components, metal pipes, metal channel plates and other products, which are widely used in construction, machinery, aerospace and other fields. The use of cold bending equipment can realize the bending and forming of metal materials, meet the processing needs of different shapes and sizes, and improve production efficiency and product quality.
Common roll forming machines include:
1. Light Steel Keel Roll Forming Machine
3. Roof Tile Roll Forming Machine
And so on.
1. The principle of average force in each pass, the average force of the whole line of rollers, wear and tear equalization, to extend the service life of the rollers.
2. Roller using C12MoV material is to take advantage of its wear resistance, but the specific strength and hardness is contradictory, heat treatment to take advantage of the red hardness of C12MoV, after quenching, two or even three times tempering to achieve hardness.
3. track arc part is the core part of the slide, the first few pressure molding after the arc bit, in the latter course of the second rolling folded standing edge, should have been molded arc, through the upper and lower rolls or cross wheels, for the protection of the effective tube bundle, or else, the material in the stretching process of the arc bit will certainly change, R becomes smaller to become a triangle, the steel ball does not go to the bottom, the two points of contact to produce a cacophony of noise, R becomes large, with the track to produce wobbling, the slide track use trajectories Fuzzy, uneven force, slide deformation, shorten life.
4. Rolling stability problems, production often encountered in the material in the raceway left and right swing problem, in fact, a single group of rollers subject to asymmetry, the left force is large, the material to the right side of the swing; the right side of the force is large, the material to the left side of the swing.
5. Roller processing accuracy is the key, for this reason, special production of special tools in the projector, magnified 20 times for testing.
6. The main drive side, using roller taper bearings, to ensure that the spindle radial run out in 0.04MM inside and outside, the spindle will not be left and right scurrying, ordinary ball bearings own clearance, in the transmission can not be avoided axial scurrying.