Drying device for polyester thread production

The utility model belongs to the technical field of polyester thread production, and particularly relates to a drying device for polyester thread production, which comprises a box body, supporting legs are mounted at the bottom end of the box body, a feeding hopper is arranged in the middle of the upper end of the box body, two L-shaped grooves are symmetrically formed in the front end of the box body, L-shaped blocks are arranged in the two L-shaped grooves in a sliding manner, and the L-shaped blocks are arranged in the L-shaped grooves in a sliding manner. A door body is jointly connected between the two L-shaped blocks, a material taking assembly is arranged in the middle of one end of the box body, mounting grooves are formed in the two sides of the upper end of the box body, a drying assembly is arranged at the upper end of the box body, fixing blocks are installed at the four corners of the upper end of the box body, and an observation window is arranged at the front end of the door body. A group of bu