Tray placing device and light pipe stacking machine with same

The utility model discloses a wobble plate device and a light pipe material stacking machine with the wobble plate device, the wobble plate device comprises a square box body, a pipe material cavity is arranged in the box body, the width of the pipe material cavity is matched with the length of pipe materials, the bottom surface of the box body is provided with a pipe material inlet communicated with the pipe material cavity, and the pipe material inlet is communicated with the pipe material cavity. The box body is divided into a first half box body and a second half box body along the axis of the length direction, the box body is formed by splicing the first half box body and the second half box body, and the bottom surface of the box body and the first half box body are integrally arranged; the inlet opening and closing mechanism is arranged at the pipe inlet and used for closing and opening the pipe inlet; and the pressing plate is arranged in the pipe material cavity, the pressing plate is provided with a