Ejector block structure for product inverted buckle demolding and demolding method of ejector block structure

The ejector block structure comprises a large ejector block, an ejection power assembly of the large ejector block, a large pitched roof, an ejection power assembly of the large pitched roof and a small pitched roof, the large ejector block is located above the large pitched roof, and the small pitched roof is located between the large ejector block and the large pitched roof and right faces the upside-down position of a product. A first guide rail is fixedly installed at the bottom of the large ejector block, and a T-shaped sliding groove matched with the first guide rail is formed in the top face of the small inclined ejector. A sliding cavity is formed in the top of the large pitched roof, a second guide rail is fixedly inserted into the inner bottom face of the sliding cavity, the small pitched roof is contained in the sliding cavity, and a lower sliding groove matched with the second guide rail is formed in the bottom of the small pitched roof. And the outer end part of the small pitched roof is propped