Method for making insegnias with raised designs including two pressing steps

A method for making an insignia with a raised design, comprising the following steps of:

• (1) preparing a base material consisting of a base sheet and a surface sheet overlaying the base sheet, the base material being covered with a surface coating;
• (2) placing the base material on a bottom mold;
• (3) pressing a first upper mold against the bottom mold so as to form the base material with a raised design of pattern, the first upper mold being connected to a composite heating device including high-frequency induction and electric heating means and having a pressing surface formed with a plurality of pattern-defining blades, said composite heating device applying high-frequency induction heat and electric heat to the base material while the first upper mold is being pressed against the base material;
• (4) pressing a second upper mold against the bottom mold so as to define the edge of the insignia, the second upper mold being connected to a composite heating device including high-frequency induction and electric heating means and having a plurality of edge-defining blades thereon, said composite heating device applying high-frequency induction heat and electric heat to the base material while the second upper mold is being pressed against the base material;
• and
• (5) removing remnants cut away by the pattern-defining blades.

An apparatus for making an insignia with a raised design, comprising:

• (a) a bottom mold for supporting a base material of the insignia;
• (b) a movable upper mold provided above said bottom mold and formed with a plurality of edge-defining blades for cutting an edge for the insignia, a plurality of pattern-defining blades for forming a pre-designed pattern on the insignia, and a plurality of surfaces formed with a plurality of pointed projections;
• (c) composite heating means coupled to said bottom and upper modes, said composite heating means including high-frequency induction heating and electric heating means for applying both high-frequency induction heat and electric heat concurrently to said bottom and upper molds;
• and
• (d) means for pressing said upper mold against said bottom mold so as to form the base material with the pre-designed pattern, during which process said composite heating means applying both high-frequency induction heat and electric heat to the base material.