Patent ID: 7040887
Filing Date: 2006-05-09
Classification: B29C

Abstract:
1. Nozzle body for an injection molding machine for processing plastic materials and other plastifiable materials, the nozzle body comprising: a nozzle opening for injecting the plastified material into an injection mould, at least one nozzle channel discharging in the nozzle opening for connection to a plastifying cylinder, at least one closure element having an open position and a closed position and is disposed in the nozzle body, wherein the closure element in the closed position is arranged between the injection mould and a holding pressure chamber which is in open communication at least at times with the injection mould, an actuation member associated with the nozzle body for influencing the holding pressure chamber by means of a separate pressure element, which is disposed in the nozzle body and is actuatable independently of the nozzle body and the plastifying cylinder, wherein the separate pressure element is adapted to be moved in the nozzle channel in a limited fashion without changing the volume of the plastified material available in the nozzle body.