Feeding butt joint device of stacking machine

The invention relates to the technical field of stacking equipment, and discloses a stacking machine feeding butt joint device which comprises a lifting mechanism, the lifting mechanism is arranged in a walking mechanism, a bottom fork is installed on the upper surface of the lifting mechanism, an upper fork is connected to the outer side of the bottom fork in a sleeving mode, and the upper fork and the bottom fork are in sliding clamping connection; a cavity is defined by the upper fork and the bottom fork together, a triangular frame is arranged in the cavity, the upper end of the triangular frame is fixedly connected with the bottom face of the upper fork, the triangular frame is composed of a vertical plate and an inclined plate, and a right triangle is defined by the vertical plate, the inclined plate and the bottom face of the upper fork. A hydraulic rod is jointly installed between the right side face of the vertical plate and the left side face of the bottom fork, a movable plate is installed on the l