Krones Ag

Helmut Schneider

Dieter Finger

Florian Geltinger

Andreas Brunner

Hartmut Davidson

Thomas Höllriegl

Johannes Strauss

Georg Gertlowski

Sebastian Langwieser

Uwe Hasler

Jörg Triebel

Hans-Jürgen Fleischmann

A device for transporting containers comprises at least two transport devices for the containers, at least two servo motors, at least two position sensors, and at least one control unit. The at least one control unit is to control the at least two servo motors, by closed-loop control, based on a comparison of positions determined by respective position sensors of the at least two position sensors and respective target positions. The at least one control unit is further to bring the at least two servo motors to a standstill in the event of a fault of a position sensor, wherein: a) a servo motor is brought to a standstill in a closed-loop manner using the position if it is determinable by the position sensor, or b) the servo motor is brought to a standstill in an open-loop manner based on the target position if the position is not determinable.

Method for transporting containers

Disclosed is a rotary table machine for container treatment, comprising a carousel with container receptacles for conveying containers, wherein the container receptacles are arranged at a regular spacing along a circular path about an axis of rotation of the carousel by means of a machine pitch, characterized in that the carousel and a rotary transducer are connected via a transmission such that, when the carousel rotates about a machine pitch, the rotary transducer emits and/or processes a whole-number multiple of a periodic value increment as a position signal, a signal transmitter is designed to detect a reference mark on the carousel and for emitting a reference mark signal on the basis thereof, and a signal processing device is designed to process the position signal and the reference mark signal in order to regulate the position of the carousel and to control the container receptacles.

Rotary table machine for container treatment with rotary transducer

A stretch-blow molding machine having at least one blow molding station, in which a split blow mold, an adjustable blow nozzle with a valve section, a stretching rod with a stretching rod drive system, and an electronic control unit are provided, the electronic control unit arranged in the blow molding station is equipped with hardware and software for selectively operating the blow molding station with a combination of a cam drive and a pneumatic drive, or a combination of an electric servo drive and a pneumatic drive, or only an electric servo drive in the stretching rod drive system. The movement of the stretching rod is initiated in the stretch-blow molding machine in the production process of a container by means of an electric servomotor with the beginning of or during the locking phase of the blow mold and before the blow nozzle is placed, and the stretching rod is already displaced to a position in which the stretching rod is either very closely approached to the preform bottom or contacts the preform bottom, or has even already pre-stretched the preform, until the blow nozzle is placed.

Stretch-blow molding machine

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Wuppertal, Germany

Helmut Schneider