The utility model discloses a feed mechanism which comprises a feed hopper (100), a case (200), a conveying device (300) and a base frame (400). A mixing device (1) and a longitudinally split device (2) are arranged in he case. The mixing device (1) includes a first rotating shaft (11) and stirring blades (12), wherein the first rotating shaft is arranged perpendicular to the conveying direction and driven by a drive motor to rotate, and the stirring blades are arranged on the first rotating shaft and radially extends along the first rotating shaft. The longitudinally split device is downwards arranged next to the mixing device along the conveying direction and driven by a drive motor. According to the feed mechanism, materials not only can be conveyed more evenly, but also can be split before being subjected to further processing, and especially for viscous materials, a special effect can be seen, so that the material conveying and processing can be greatly facilitated, accordingly the processing process is facilitated, good process results can be obtained, the processing is fast and easy, and the processing efficiency is improved.