Method and device for treating dough

A device for treating dough, comprising:

• a horizontally extending conveyor, for conveying a flat dough sheet;
• at least one mat, arranged above the conveyor, with the at least one mat's end downstream the direction of conveyance resting on or slightly above the conveyor, for rolling up the dough sheet when it is conveyed underneath;
• at least one fence, forming a blunt sealing knife, arranged vertically at a distance above the conveyor surface and extending in the direction of conveyance, downstream the at least one mat, for notching and therewith sealing the rolled up dough sheet without cutting it;
• at least one rotatable knife, arranged at the downstream outermost end of the at least one fence and in the plane of said at least one fence, for cutting the notched dough piece, wherein
• the end of the at least one fence adjacent to the at least one rotatable knife form-fits the at least one rotatable knife.