Pneumatic self-locking type automatic lifting take-up device for water-tank wire drawing machine

The invention discloses a pneumatic self-locking type automatic lifting take-up device for a water-tank wire drawing machine. The device comprises a pneumatic mounting self-locking unit and an automatic lifting unit, wherein the pneumatic mounting self-locking unit comprises a left I-shaped wheel mounting base, an I-shaped wheel, a spindle, a right I-shaped wheel mounting base, an end cover, a sliding base, a sliding sleeve, a locking cylinder, a rear cover plate, a locking shaft, a connecting plate, a rear driving cylinder and a front driving cylinder; and the automatic lifting unit comprises a top plate, a lifting block, a base, a first support rod, a second support rod, a lifting cylinder and a shaft. The device has a self-locking function and mounts the I-shaped wheel in a pneumatic manner, so that the efficiency in the process of mounting the I-shaped wheel is increased while the safety of the speedily rotating I-shaped wheel is ensured. By detaching the I-shaped wheel by using an automatic lifting platform, the labor intensity of operators is reduced, thereby being beneficial to lowering the production cost, and meanwhile the efficiency in the production process is further increased.