Einspritzeinheit und Formgebungsmaschine

• Main Authors: Christoph Balka Dipl.Ing, Gottfried Hager Dipl.Ing, Franz Dirneder Ing, Stephan Eppich
• Format: Patent
• Language: German
• Published: 15.07.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Einspritzeinheit für eine Formgebungsmaschine, wobei eine Lagerung (7) vorgesehen ist, welche einem Prozessor (6) die Berechnung eines von Temperatureinflüssen unbeeinflussten Kraftsignals gestattet, wobei zumindest ein Messkörper über die Lagerung (7) im Kraftstrang gelagert ist und die vom Einspritzantrieb (3) erzeugte Kraft über die Lagerung (7) übertragbar ist und die Lagerung (7) eine durch Temperatureinfluss bedingte Verformung des zumindest einen Messkörpers zulässt, sodass ein Spannungszustand des zumindest einen Messkörpers ohne eine durch den Einspritzantrieb (3) erzeugte Kraft wenigstens am Ort des wenigstens einen Sensors (5) zumindest im Wesentlichen unverändert bleibt. The invention relates to an injection unit (8) for a molding machine, which comprises an injection piston; an injection driver; a drive train for transmitting injection force from the injection driveto the injection piston; a measuring device for measuring an injection force, having at least one measuring body; a processor configured to output a force signal as a result of the calculation, wherein a means is provided which allows the processor to calculate a force signal which is not influenced by the temperature, the device is designed as a support for the at least one measuring body and isdifferent from the at least one measuring body, at least one measuring body is mounted in the drive train by means of a bearing, the force generated by the injection drive can be transmitted through the support, and the support allows the deformation of the at least one measuring body caused by the influence of temperature, so that the stress state of the at least one measuring body remains at least substantially unchanged at least at the position of the at least one sensor without the force generated by the injection drive.