Automatic take-up and pay-off device

The utility model discloses an automatic take-up and pay-off device which comprises a frame side plate, and two shaft ends of a roller shaft are respectively inserted into shaft holes in the two sideplates of the frame side plate; one shaft end of the roller shaft is connected with a volute spiral spring, and the other shaft end of the roller shaft is provided with a rotary conducting ring; the volute spiral spring and the rotary conducting ring are both arranged on the outer side of the frame side plate; the wire roller is sleeved outside the roller shaft and is fixed at a position oppositeto the roller shaft through a pin; fixing holes are formed in the side wall of the wire roller, and the lock catches are installed on the side plate of the frame and used for being clamped into the fixing holes to limit the wire roller. Compared with the prior art, the cable take-up and pay-off device can be applied to automatic take-up and pay-off of cables under the condition that no person participates, a volute spiral