Dough piece rolled up with a separator sheet, and method and device for preparing these

A device for rolling up a dough piece on a separator sheet, comprising:

• a receptacle;
• and
• a rolling chamber for receiving the separator sheet in flat form with the dough piece on top, and rolling up the separator sheet and the dough piece into a rolled up form, wherein the rolling chamber comprises:
• a controllable release opening for controlled transfer of the separator sheet with the dough piece in the rolled up form to the receptacle,
• characterized by:
• at least one sensor for determining directly or indirectly a closure position and/or an end of the separator sheet in the rolled up form and providing a signal representing said closure position,
• a controller for controlling the controllable release opening based on the signal from the at least one sensor;
• and
• the receptacle having a more or less concave cross section of its surface to provide centering properties and for receiving the separator sheet with the dough piece in the rolled up form and holding the separator sheet with the dough piece in a predetermined position.