| 摘要 |
The invention relates to a system for carrying out the machine production of pretzels. Said system comprises a device for feeding U-shaped strands of dough into a shaping unit located downstream therefrom. The shaping unit is configured for holding the fed U-shaped stands of dough and for working the same into a pretzel blank. The system also comprises a pretzel blank removal device assigned to an exit of the shaping unit, and comprises a gripping device which is configured for grasping or holding the ends of the strands of dough outside and/or inside the shaping unit, and which can linearly travel along a conveying device for strands of dough and pretzel blanks between a supply device and a removal device and in a transversal direction thereto. The system is provided with means for tying a pretzel knot from the limb sections of the U-shaped strand of dough located in the shaping unit, whereby the gripping device and the tying means can be controlled by a control. The shaping unit is provided with dough strand positioning means which can be linearly driven and guided in and counter to the direction of conveyance, and which can be controlled by the control. Said positioning means enable the strand of dough or the pretzel blank to be completely or partially displaced in and counter to the direction of conveyance with regard to the gripping device which holds the ends of the stands of dough. The control is coupled on the input side to signal transmitters which report the position of the strand ends, of the gripping device and/or of the tying means, and is coupled on the output side to the linear drive for the positioning means in order to control the same.
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