Chip ejection mechanism and ejection device

A chip ejection mechanism comprises a shell, an ejection cap, a directional neck bush, an ejector pin seat, an ejector pin and a guide piece. The shell is provided with a containing cavity, the top cap is installed at one end, in the first direction, of the shell, the directional neck bush is fixed in the containing cavity, and the directional neck bush is provided with a directional hole formed in the first direction and a guide part arranged in the first direction. The ejector pin seat penetrates through the directional hole and is slidably connected with the directional neck bush, the ejector pin is installed at the end, close to the ejector cap, of the ejector pin seat, and the ejector pin seat can drive the ejector pin to extend out of the ejector cap. The guide piece is fixed on the peripheral side of the ejector pin seat, and a part of the guide piece is matched with the guide part in a sliding mode. In the process that the ejector pin seat drives the ejector pin to extend out of the ejector cap, the g