Cap pulling device adaptive to various consumables

The invention discloses a cap pulling device suitable for various consumables. The cap pulling device comprises a sliding rail assembly, a clamping jaw and a needle handle pressing block. The clamping jaws are symmetrically provided with at least one pair of semi-circular rings with sharp blades, so that a plurality of circular rings are formed after the clamping jaws are folded to tightly hold the needle cap; the thickness and the angle of the cutting edge are limited to ensure that the needle cap smoothly falls off; the pressing mode of the needle handle is changed, the pressing head with sawteeth is arranged on the needle handle pressing block, the pressing range of the needle handle pressing block is enlarged, and it can be guaranteed that the puncture needle is in a vertical state while the needle handle is pressed; and an alarm device is arranged at the sunken part of the clamping jaw. The needle cap clamp solves the problem that a needle cap clamp is poor in universality, consumable needle caps of diff