Patent DE-102006044817-A1 (DE)
Title: Machine with molding device for production of pretzel from dough strand, comprises horse shoe-shaped mold cavity for receiving middle region of the dough strand, knotting head, mechanical controller and pasty strand input with presenter
Inventor: SCHUETZ OTTO
IPC: A21C3/08
Filed: 2006-09-22
Abstract: The machine with molding device (1) for production of pretzel (33) from a dough strand (3), comprises a horse shoe-shaped mold cavity for the reception of middle region of the dough strand, a knotting head for detecting the ends of the dough strand and for knotting of swirl, a mechanical controller for process of retractable speed over the tipping path, and a pasty strand input with a presenter. The mechanical control system is arranged at the machine by tap-shaped cam and gear wheel-like curves that are arranged at the knotting head or the mold cavity. The machine with molding device (1) for production of pretzel (33) from a dough strand (3), comprises a horse shoe-shaped mold cavity for the reception of middle region of the dough strand, a knotting head for detecting the ends of the dough strand and for knotting of swirl, a mechanical controller for the process of retractable speed over the tipping path, and a pasty strand input with a presenter. The mechanical control system is arranged at the machine by tap-shaped cam and gear wheel-like curves that are arranged at the knotting head or the mold cavity. The controller controls dependently through the momentary position of the molding device in the machine and is intended so that the desired swirl knotting (360 or 180[deg] ) is terminated before the ends reach the center section. The presenter has a recess in the center. The recess is traversed by the middle retaining edge of the mold cavity. The strand input has a measuring device operated by lasers for measuring the length and transverse position of the pasty strand and is shifted dependent on the presenter in transverse direction so that the strand coincides accurately with its center. The molding devices are incorporated on both sides in two longitudinal positions to chains and are revolvably transported. The distance shortening between the two longitudinal positions of the conveyor chains is used during its redirection over a pinion for the tilt of the release of the pretzel. The presenter side of the machine comprises an active ejector in form of a stopper, which is fastened against the mold cavity at the end of its tilting movement. The mold cavity is tiltably arranged around the flow direction. The mold cavity and knotting head produce the half of the desired spin. The mold cavity and/or knotting head are arranged at the free end of an angular traverse. The molding devices are arranged at the ends of a revolver, which is rotated around a horizontal axle, and causes retractions and movements of servomotors. Pressure rollers are present before the delivery position of pressure elements and press at the position of the strand ends on the middle region before the pretzel is thrown off. In the angular traverse, a toothed belt drive rotates to the drive of the rotation movement of the knotting head and/or mold cavity. The stopper of the ejector is a way back control cam that controls the tilting back of the molding device in the initial position. An independent claim is included for a procedure for the production of pretzel from a dough strand.