Method for setting and/or monitoring a press tool, and associated press control device

• US 20040195715A1
• Filed: 04/23/2004
• Published: 10/07/2004
• Est. Priority Date: 10/24/2001
• Status: Abandoned Application

• Current Assignee: Dorst Maschinen Und Anlagenbau GmbH & Co.
• Original Assignee: Dorst Maschinen Und Anlagenbau GmbH & Co.
• Inventors: Grobl, Herbert Ludwig, Rau, Walter
• Application Number:
  US10/830,756
• Publication Number:
  US 20040195715A1
• Time in Patent Office: Days
• US Class Current: 264/40.5
• CPC Class Codes: B30B 11/005 Control arrangements
• CPC Class Codes: B30B 15/26 Programme control arrangements

Abstract

A controlling method for parallel controlling of a plurality of controllable tool devices is based on a procedure plan for a press lifting with respect to a press cycle, according to which pre-determined values for tool device parameters are determined and according to which a test lifting for examination of the controlling method will be started. For rationalisation of the method and in order to minimise technical faults as well as press standstill times, the test lifting is simulated as a virtual lifting in a computer device. In addition, to facilitate a long-term monitoring and analysis of changes with respect to the press and/or the tool during the pressing operation, at least one operation parameter may be registered, in order to be compared with earlier registered operation parameters.

Claims

1. Method for setting of a ceramic or metal powder press tool, wherein

a controlling method for parallel controlling of a plurality of controllable tool devices is provided, which is based on a procedure plan for a press lifting for a press cycle,

target or pre-determined values being determined for tool device parameters and

a test lifting being started for examining of said provided controlling method, wherein

said test lifting is simulated in a computer device according to expected moving procedures with said provided controlling method.

2. Method according to claim 1, wherein

within said test lifting simulated real values are determined, being compared with said pre-determined values, and according to which

said test lifting is repeated with adapted controlling method until a deviation of said real values and said pre-determined values lie within a pre-given scope of tolerance.

3. Method according to claim 2, wherein

for one or more parameters in case of a deviation larger than a critical tolerance an output occurs to a user, and, in particular, a continuation of said controlling method being interrupted until a new release with adapted parameter/s occurs.

4. Method according to claim 1, wherein said controlling method is carried out in form of a CNC programming as controlling program.

9. Method according to claim 5, wherein a controlling method and/or operation parameters of said method according to claim 1 are used as controlling or reference method.

10. Method according to claim 5, wherein a controlling method and/or operation parameters of said method according to claim 2 are used as controlling or reference method.

12. Method according to claim 1, wherein during said providing of the controlling method and/or a test lifting a plausibility examination will be carried out or considered, particularly a plausibility examination with respect to ways, liftings, positions of individual tool elements and/or forces acting on them.

14. Method according to claim 1, wherein influences by alteration of said material, which has to be pressed, are considered by adaptation of parameters and/or adaptation of the procedural steps.

15. Method according to claim 1, wherein for determination of changes of parameters of said tool or said press itself a registered parameter will be compared with a parameter, which has been registered at an earlier point of time, to be a reference value.

17. Method according to claim 9, wherein for determination of changes of parameters of said tool or said press itself a registered parameter will be compared with a parameter, which has been registered at an earlier point of time, to be a reference value.

18. Press control device comprising

a controlling device for a press tool with a plurality of controllable tool devices and value of measurement receptor devices for registering of press and/or tool parameters,

said controlling device being established for controlling of said tool devices and for monitoring of said registered press and/or tool parameters and said controlling device being established for the performance of a method according to claim 1.

5. Method for monitoring of a ceramic or metal powder pressing process, of a ceramic or metal powder press and/or a ceramic or metal powder tool, according to which a controlling method controls a plurality of controllable tool devices of a pressing process or of a press tool by a plurality of press cycles, wherein said controlling of the individual tool devices occurs dependent on pressing process, tool and/or press material parameters, wherein

during the pressing operation for its monitoring at least one operation and/or state parameter is registered

said at least one registered operation and/or state parameter being compared with one or more operation and/or state parameter/s determined or registered at at least one earlier point of time.

6. Method according to claim 5, wherein in case of a deviation larger than a pre-given scope of tolerance an error process will be started.

7. Method according to claim 6, wherein said error process puts into effect an automatic correction of said controlling method or recommends it to an user.

8. Method according to claim 6, wherein operation and/or state parameters are being analysed and evaluated and/or documented.

11. Method according to claim 5, wherein said registered operation parameters will be communicated to a press-external controlling device in order to monitor and/or to correct pressing.

13. Method according to claim 5, wherein during said providing of the controlling method and/or a test lifting a plausibility examination will be carried out or considered, particularly a plausibility examination with respect to ways, liftings, positions of individual tool elements and/or forces acting on them.

16. Method according to claim 5, wherein for determination of changes of parameters of said tool or said press itself a registered parameter will be compared with a parameter, which has been registered at an earlier point of time, to be a reference value.