Tin material self-supplementing device for tin immersion equipment

The utility model discloses a tin material self-supplementing device for tin immersion equipment, which comprises a tin material pool, a tin material self-supplementing device, a tin material self-supplementing device, a tin material self-supplementing device and a tin material self-supplementing device, the material bearing box is provided with a second containing cavity with an opening in the upper end; the material bearing box is installed on the lifting mechanism, the lifting mechanism drives the material bearing box to ascend and descend above the first containing cavity, and the material bearing box can descend into the first containing cavity, so that the tin materials stored in the first containing cavity are supplemented into the second containing cavity; the depth size of the second containing cavity can be used for being matched with the tin immersion depth of the terminal, meanwhile, after one or more times of tin immersion each time, the material bearing box descends into the first containing cav