Device for checking a seal of a package, and method for checking a seal

A device (10) for checking at least one sealing seam (12), of a folded packaging (14), the device (10) comprising:

• a negative pressure chamber (16), which is configured to receive at least one packaging (14) and to generate a negative pressure in the negative pressure chamber (16), so that a packaging (14) located in the negative pressure chamber (16) is aligned due to gas located in the packaging (14) and expanding as a result of the negative pressure generated in the negative pressure chamber (16),
• wherein the device (10) comprises an image capture device (18) which is configured to capture the aligned packaging (10) and/or the sealing seam (12) of the aligned packaging (10) in the form of optical data, the captured data being captured as an image or a video of the entire packaging, parts of the packaging, the sealing seam, a plurality of sealing seams or individual regions of the individual sealing seams, to determine whether a seal is still intact,
• wherein the device (10) comprises at least one clamping plate (32), the clamping plate (32) being configured to fix the aligned packaging (14) in an aligned state (17) and being configured such that pressure fluctuations or pressure differences in the negative pressure chamber (16) do not form folds in the folded packaging (14) or cause the folded packaging (14) to return to a folded state from the aligned state.