Composite set that wafts is prevented to belt

The utility model provides a composite set that wafts is prevented to belt, include: support support body, a set of belt press roller assembly of going up and a lower belt press roller assembly, support the fixed low -lying department that sets up at the tunnel bottom plate of support body, the uninstallation roller of going up among the belt press roller assembly all sets up on supporting the support body with the switching -over roller, and the switching -over roller lies in the rear side of uninstallation roller, and the top of switching -over roller is higher than the bottom of the rollerof unload and is less than the top of the roller of unloading, lower compression roller setting among the lower belt press roller assembly is in support on the support body to support to press on thehypodermis area, go up belt elder generation pile warp uninstallation roller, pile warp switching -over roller again forms a transferring point becoming slope department to belt and the flat line of knick point both sides bate