Core shooting apparatus and method for controlling core shooting apparatus
AssigneeMAGMA Giessereitechnologie GmbH
InventorsKarl Gronen, Ingo Wagner
Life of this patent
Estimating the term…
Abstract
A core shooting machine (1) for producing cores by a process of shooting a core sand mixture (21) into at least one cavity (19) in a core box (18), the core shooting machine (1) having a source of compressed air (10) at an adjustable initial machine pressure (P0), a shooting head (13) fluidically coupled to the source of compressed air (10) by at least one conduit (12) that includes an electronically controlled shot valve (11), the shooting head (13) being configured for containing an amount of the core sand mixture (21), resulting in a filling degree of the shooting head (13), and a computing device (50,60) associated with the core shooting machine (1) and being configured to perform a simulation of the process.
Claims16
A method for controlling a core shooting machine for producing cores by a process of shooting a core sand mixture into at least one cavity in a core box that is associated with the core shooting machine, the core shooting machine comprising:
- a source of compressed air at an adjustable initial machine pressure, the adjustable initial machine pressure being an adjustable process condition of the process, and
- a shooting head fluidically coupled to the source of compressed air by at least one conduit that includes an electronically controlled shot valve, the shooting head being configured for containing an amount of the core sand mixture, resulting in a filling degree of the shooting head, the filling degree being an adjustable process condition of the process,
- the method comprising performing a simulation of the process on a computing device, using a model of the process, on the basis of several process conditions, including the adjustable process conditions, and determining an improved or optimal value for one or more adjustable process conditions based on the result of a performed simulation, and adjusting one or more of the adjustable process conditions in accordance with the determined improved or optimal value.
A method for simulating, on a computing device, a process performed by a core shooting machine for producing cores by shooting a core sand mixture into at least one cavity in a core box that is associated with the core shooting machine, the method comprising:
- informing the computing device of several process conditions, including one or more adjustable process conditions of the process,
- performing a simulation of the process on the basis of the process conditions, using a model of the process, and
- determining an improved or optimal value for the one or more adjustable process conditions based on the result of the simulation,
- wherein the model is a simplified 1-D representation of the process, considering a main local flow direction.
Dependencies are inferred from the claim text.