Automatic clamping device for pull ring of sliding block self-sealing bag

The utility model belongs to the technical field of sliding block self-sealing bag assembling and processing, and particularly relates to an automatic clamping device for a pull ring of a sliding block self-sealing bag, which comprises a rack, a pull ring assembling component and a sliding block fixing component are arranged on the rack, and the pull ring assembling component and the sliding block fixing component are oppositely arranged; the pull ring assembling assembly comprises a pull ring fixing mechanism and a pull ring clamping mechanism, the pull ring fixing mechanism comprises a supporting base, a pull ring pressing plate and a pull ring pressing power piece, the pull ring clamping mechanism comprises a sliding base and a clamping power piece, the clamping power piece is in transmission connection with the sliding base, the supporting base and the pull ring pressing power piece are installed on the sliding base, and the pull ring pressing plate is arranged on the supporting base. The clamping power p