Film tearing mechanism

The utility model discloses a film tearing mechanism. The film tearing mechanism comprises a rack, a sliding rail, a clamping assembly and a second driving device. The sliding rail is horizontally arranged on the rack; the clamping assembly comprises a first driving device, a sliding shovel and a pressing block, the first driving device is arranged on the sliding rail in a sliding mode, the sliding shovel and the pressing block are both arranged on the first driving device, the pressing block is located on the sliding shovel, the sliding shovel and the pressing block can move relatively, and the first driving device is used for driving the sliding shovel and the pressing block to slide in the vertical direction; the second driving device is used for driving the clamping assembly to slide along the sliding rail. According to the film tearing mechanism, in the film material detection process, the unqualified film materials can be quickly torn off on the premise that other film materials are not affected, the fi