Relay transmission device for transferring tobacco flake material from vibrating screen outlet to negative pressure pipeline

The invention provides a relay conveying device for transferring tobacco flake materials from a vibrating screen outlet to a negative pressure pipeline. The relay conveying device comprises a tobacco flake material outlet groove, a feeding hopper, a negative pressure material receiving pipeline and a negative pressure conveying pipeline. The tobacco flake material outlet groove is used for conveying tobacco flake materials; the feeding funnel is arranged below an outlet of the tobacco sheet material outlet groove, a distance is formed between the feeding funnel and the tobacco sheet material outlet groove in the vertical direction, and one end of the feeding funnel is connected to the negative pressure material receiving pipeline; one end of the negative-pressure material receiving pipeline is connected with the negative-pressure conveying pipeline, and the other end of the negative-pressure material receiving pipeline is provided with an end cover with a through hole; and the negative pressure conveying pipe