Injection molding machine

1. Injection molding machine with a mold that can be opened and closed, the mold having a mold caviity into which mold cavity a fluid molding compound can be injected, characterized by at least one reading device for at least one transponder arranged in the mold cavity, wherein data transport between said reading device and said transponder occurs in both directions in a contactless manner.

2. Injection molding machine according to claim 1 , characterized in that the fluid molding compound is a plastic.

3. Injection molding machine according to claim 1 , characterized in that a receiving unit of the reading device is arranged in the inside wall of the mold facing the mold cavity.

4. Injection molding machine according to claim 1 , characterized in that at least a part of the mold wall consists of a dielectric, the reading device having a receiving unit and the receiving unit of the reading device is arranged in the area of the dielectric.

5. Injection molding machine according to claim 4 , characterized in that the dielectric is a ceramic or ferrite.

6. Injection molding machine according to claim 1 , characterized in that the reading device is arranged partly on a carrier, and the antenna of the reading device is arranged outside the carrier of same at or in the mold.

7. Injection molding machine according to claim 6 , characterized in that the carrier is a chip.

8. Injection molding machine according to claim 1 , characterized in that the reading device and the transponder are parts of a RFID system.

9. Injection molding machine according to claim 1 , characterized in that the reading device is also developed as a writing device by means of which data can be transmitted to the transponder.

10. Injection molding machine according to claim 9 , characterized in that the receiving unit is able to operate as a transmitting unit.

11. Injection molding machine according to claim 9 , characterized in that the data can be transmitted to a memory of the transponder.

12. Injection molding machine according to claim 1 , characterized in that in the mold cavity at least one sensor is arranged which is in communication with the transponder.

13. Injection molding machine according to claim 12 , characterized in that the sensor is a pressure sensor or a temperature sensor.

14. Injection molding machine according to claim 12 , characterized in what the at least one sensor is developed integrated in or at the transponder.

15. Injection molding machine, characterized by a device for the introduction or holding of at least one transponder into the liquid or in the fluid molding compound.

16. Injection molding machine according to claim 15 , characterized in that the transponder can be introduced or held at a point at a distance from the inside wall of the mold cavity.

17. Injection molding machine according to claim 15 , characterized in that the transponder is introduced or hold in a way that it is enclosed on all sides, by the fluid molding compound.

18. Injection molding machine according to claim 15 , including mechanical holding means which are cast in with the transponder and remain with the transponder in the injection molding.

19. Injection molding machine according to claim 18 , characterized in that the mechanical holding means comprise wires.

20. Injection molding machine according to claim 15 , characterized in that the device for the introduction of at least one transponder has a movable holding part for the releasable holding of the transponder.

21. Injection molding machine according to claim 20 , characterized in that the holding part is essentially able to be withdrawn completely into the wall of the mold.

22. Injection molding machine according to claim 15 , characterized in that the device for the introduction of at least one transponder has a device for the injection of the transponder into the as yet not fully cured molding compound.

23. Injection molding machine, characterized by a device for the introduction of at least one transponder into the fluid molding compound at a point before this enters the mold cavity.

24. Injection molding machine according to claim 23 , characterized by a device for the introduction of at least one transponder into the fluid molding compound in the area of the plasticizing screw of the injection unit or into the channel adjacent to it.

25. Injection molding machine according to claim 1 , characterized by a device for the introduction of at least one transponder into the plastics granules before or at the entrance to the plasticizing cylinder.

26. Injection molding machine, characterized in that at least one transponder is provided in or at the transport containers for the raw material to be processed.

27. Injection molding machine, characterized in that, outside the mold cavity, at least one transponder is arranged at a transport container for the injection moldings removed from the mold cavity.

28. Injection molding machine according to claim 27 , characterized in that two or more spaced-apart reading devices are provided for the reading of the transponders at the transport containers.