Spunlace machine with function of preventing abnormal drafting of web

The utility model discloses a spunlace machine with a function of preventing abnormal drafting of a web, and belongs to the technical field of non-textile machinery. Comprising a rack; the net inlet curtain conveying mechanism is arranged on the rack; the net inlet curtain conveying driving mechanism is arranged on the rack and is in transmission connection with the net inlet curtain conveying mechanism; the net inlet curtain is arranged on the net inlet curtain conveying mechanism in a sleeving manner; the device is characterized by further comprising a cotton web anti-abnormal drafting mechanism, and the cotton web anti-abnormal drafting mechanism is arranged on the rack and corresponds to the position between the right end of an output curtain of a carding machine driven by an output curtain driving roller driving mechanism arranged on the left side in front of the left end of the rack and the left end of the web inlet curtain. The abnormal drafting prevention mechanism for the cotton web provides uniform-