The invention discloses a take-up device which comprises a left side plate, a right side pate, a connecting plate, two take-up hubs, front-end mounting and dismounting connectors, rear-end mounting and dismounting connectors and a take-up stand. Rotary shafts are fixedly connected between the front-end mounting and dismounting connectors and the rear-end mounting and dismounting connectors, one ends of the rotary shafts are rotatably connected with the left side plate, and the other ends of the rotary shafts are rotatably connected with the right side plate. Plug pins matched with pin holes inthe rotary shafts are arranged on the right side plate, and the two take-up hubs are each fixedly connected with a driven shaft. One ends of the driven shafts are connected with transmission shafts of the front-end mounting and dismounting connectors, and the other ends of the driven shafts are mounted on bearing seats of the rear-end mounting and dismounting connectors. One of driven gears on the front-end mounting and dismounting connectors is engaged with a driving gear on a corresponding first driving shaft, the take-up stand is in rigid connection with a second driving shaft arranged onthe right side plate through a bi-directional ball screw, and threading holes corresponding to the take-up hubs are formed in the take-up stand. The first driving shafts and the second driving shaft are connected with the driven shafts. Compared with the prior art, the take-up device has the advantages that the structure is simple, operation is convenient, the practicability is high, and the working efficiency is high.