Production process of deep-fried collagen casing

The invention discloses a production process of a deep-fried collagen casing. The production process comprises the following steps: preparing a collagen group; when the collagen group is prepared, the materials are mixed and kneaded by adopting a mixing and kneading machine; the mixing and kneading machine is provided with two mixing and kneading bins, and stirring mechanisms are arranged in the two mixing and kneading bins respectively; materials are put into the two mixing and kneading bins, the stirring mechanisms of the two mixing and kneading bins synchronously and alternately stir forwards and backwards, the two mixing and kneading bins synchronously and alternately swing forwards and backwards, and the alternate period of front-back swing of the two mixing and kneading bins and the alternate period of forward and backward stirring of the stirring mechanisms are different; materials at the lower ends of the two mixing and kneading bins are fed into the upper parts of the two mixing and kneading bins; th