公开(公告)号：US20210364492A1

公开(公告)日：2021-11-25

申请号：US16880062

申请日：2020-05-21

申请人： ENGEL AUSTRIA GmbH

发明人： Ruth MARKUT-KOHL ,  Klaus FELLNER ,  Thomas KOEPPLMAYR ,  Guenther KLAMMER

IPC分类号： G01N33/44 ,  C08J5/00 ,  G01K1/02 ,  G01J5/00 ,  G01F22/00 ,  G01L5/00 ,  G01P3/44 ,  B29C45/70 ,  B29C45/78

摘要： A method of classifying a plastic, wherein the plastic is plasticized by supplying plasticizing energy in the form of mechanical and/or thermal energy with an increase in a temperature of the plastic from an initial temperature value to a final temperature value, a volume and/or a mass of the plastic and the supplied plasticizing energy is detected as measurement parameters by measurement means, in dependence on the detected measurement parameters, the initial temperature value, and the final temperature value at least one of the following is ascertained: a thermal capacity of the plastic and/or a change in enthalpy of the plastic and/or a parameter which can be derived by calculation from the thermal capacity and/or the change in enthalpy, and a plastic group including the plastic is identified on the basis of the ascertained thermal capacity and/or the ascertained change in enthalpy and/or the parameter which can be derived therefrom by calculation.

公开(公告)号：US20210162643A1

公开(公告)日：2021-06-03

申请号：US17104193

申请日：2020-11-25

申请人： ENGEL AUSTRIA GmbH

发明人： Guenther KLAMMER ,  Erich HOCHREITER ,  Klaus FELLNER ,  Thomas KOEPPLMAYR

IPC分类号： B29C45/77 ,  B29C45/18 ,  B29C45/47

摘要： A method of influencing a backpressure length and/or a screw return speed in an axially extending plasticizing cylinder of a plasticizing unit for an injection moulding machine including a plasticizing screw arranged displaceably and rotatably in a cylinder bore of the plasticizing cylinder. Metering of plastic granulate fed to the plasticizing unit is carried out in dependence on the desired backpressure length in the plasticizing unit, and the plasticizing unit is operated in underfed mode.

公开(公告)号：US20220371245A1

公开(公告)日：2022-11-24

申请号：US17748755

申请日：2022-05-19

申请人： ENGEL AUSTRIA GmbH

发明人： Guenther KLAMMER ,  Erich HOCHREITER ,  Andreas HOELZL ,  Klaus FELLNER

IPC分类号： B29C45/50 ,  B29C45/80 ,  B29C45/60 ,  B29C45/62 ,  B29C45/70

摘要： An injection unit includes an injection cylinder and a plasticizing screw in the injection cylinder. The plasticizing screw is rotatable about a longitudinal axis for plasticizing plastic raw material and is movable linearly along the longitudinal axis for injecting molten plastic raw material. The injection cylinder has an infeed and plasticizing zone for the plastic raw material with a circular-cylindrical inner wall with a constant diameter along the longitudinal axis, a metering zone in front of the infeed and plasticizing zone along the longitudinal axis in the injection direction with a circular-cylindrical inner wall with a constant diameter along the longitudinal axis, and a nozzle head in front of the metering zone in the injection direction with a nozzle-shaped inner wall. The diameter of the circular-cylindrical inner wall of the metering zone is smaller than the diameter of the circular-cylindrical inner wall of the infeed and plasticizing zone.

公开(公告)号：US20220324143A1

公开(公告)日：2022-10-13

申请号：US17702335

申请日：2022-03-23

申请人： ENGEL AUSTRIA GmbH

发明人： Guenther KLAMMER ,  Klaus FELLNER

IPC分类号： B29C45/17 ,  B29C45/50 ,  B29C45/77

摘要： Plasticizing unit for a moulding machine having at least one plasticizing screw for plasticizing a plasticizable material and injecting it into at least one mould cavity, which at least one plasticizing screw is rotationally and axially movable in relation to a screw axis, wherein at least one filter is provided, which is arranged downstream of the at least one plasticizing screw in a direction of flow of a mass flow of the plasticizable material.