In addition to the welding and assembly requirements, but also to increase the rigidity of the cover, so that the edge of the neat, beautiful, so the plastic mold factory in the design, manufacture car cover flanging plastic mold, should be Pay special attention to ensure the accuracy of the profile of the flanging forming punch. According to the structural characteristics and complexity of the flanging forming mold, the plastic mold factory pointed out that the flanging forming mold can be divided into six categories as follows.
1. The wedge is inflated on both sides
The flanging of the wedge movement in the form of symmetry in two sides. The punch mold of the type of expansion with a structure, flanging when the punch open, flanging after the punch back, the whole mold is more complex.
Oblique wedge
Plastic mold factory flanging concave mold single inward for horizontal or oblique direction of the movement of the flip mold. This type of flanging mold punch as a whole, easy to remove the parts.
3. Vertical flanging mold
The flanging or die for vertical movement. This type of flanging die structure is simple, parts after forming the package on the punch, when the back to the same time to promote the flanging of the sides.
4. wedge circumference expansion flanging mode
The flanging of three sides of the flanging or inwardly in a horizontal direction. The punch of the flanging mold also has an expansion structure, and a punch at the corner is extruded by the slope of the adjacent expansion punch, which increases the complexity of the mold structure.
5. Wedge both sides outward outward
A flanging of a pair of symmetrical or oblique directions.
6. Inside and outside the full expansion of the flanging mode
The cover window closes the flanging of the outward flanging. The punch structure is similar to that of the wedge circumference, and the die is outwardly flared, and the flap of the corner is extruded by the slope of the adjacent expansion die. The whole real structure is very complex.