The pharoahs of ancient egypt are always depicted in heiroglyphics and statues as wearing crowns?

Question

but none have ever been found in archeological digs,why

Answer 1

the Crowns were passed from Pharaoh to Pharaoh, so when we find the last tomb you'll find the crown if it hasn't been stolen.

Answer 2

well, they probably ate at burger king a lot and those crowns wont last, you know they are made of cardboard.........

Answer 3

It seems to be the case that the crowns of the king of ancient Egypt were for the office/position of the king, not a possession of each individual ruler.  Crowns and various other headgear as depicted in art and hieroglyphs were associated with the role, not the individual.  Thus, they probably would not have been included in royal tombs but would be preserved and passed down to each king.

This certainly seems to be the case with the few royal tombs we know of that were undisturbed or relatively undisturbed until being excavated by archaeologists - namely the tomb of Tutankhamun and the tombs of the later 21st and 22nd Dynasty kings at the site of Tanis in the Delta.