Blow molding machine with automatically actuated base coupling

Patent metadata

Field	Value
Publication number	US-10647047-B2
Application number	US-201515511260-A
Country	US
Kind code	B2
Filing date	Oct 9, 2015
Priority date	Oct 9, 2015
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

A system is provided for transforming plastic parisons into plastic containers with at least one transforming station which has a blow mold within which the plastic parisons can be expanded by application of a gaseous medium, wherein the blow mold has a base part which is disposed releasably on a support, and with a first fastening mechanism in order to fasten the base part to the support, and wherein the blow mold has at least one side part which is disposed releasably on a support and a second fastening mechanism in order to fasten the side part to the support.

First claim

The invention claimed is:

1. A system for transforming plastic parisons into plastic containers, comprising:
at least one transforming station which has a blow mold within which the plastic parisons can be expanded by application of a gaseous medium,
wherein the blow mold has a base part which is disposed releasably on a support, and a first fastening mechanism in order to fasten the base part to the support,
wherein the blow mold has at least one side part which is disposed releasably on a support and a second fastening mechanism in order to fasten the side part to the support,
wherein the first fastening mechanism can be actuated by a free-flowing medium in order to unlatch the base part from the support and the second fastening mechanism can be actuated by the free-flowing medium in order to unlatch the side part from the support, and
a media connection device configured to deliver the free-flowing medium simultaneously to at least the first and second fastening mechanisms.

2. The system according to claim 1 , wherein at least one fastening mechanism is configured in such a way that it is in a latched state in a pressureless state with respect to the free-flowing medium.

3. The system according to claim 1 , wherein at least one fastening mechanism can be brought from a latched state into an unlatched state by the application of a predetermined pressure of the free-flowing medium, wherein this predetermined pressure is greater than 2 bars.

4. The system according to claim 1 , wherein the media connection device is connected by at least one preferred flexible supply line to at least one fastening mechanism.

5. The system according to claim 1 , wherein the blow mold has at least one further side part which is disposed releasably on a support and a second fastening mechanism in order to fasten the side part to the support.

6. The system according claim 1 , wherein the fastening mechanism has a pretensioning device which fixes at least one blow mold part by non-positive and/or positive engagement on the support associated with this blow mold part.

7. The system according to claim 6 , wherein the pretensioning device can be acted upon by the free-flowing medium.

8. The system according to claim 6 , wherein the fastening mechanism has a movable piston which is displaceable by the free-flowing medium into a first position and/or is displaceable by the pretensioning device into a second position.

9. A method for operating a system for transforming plastic parisons into plastic containers,
wherein in a working operation the plastic parisons are expanded by application of a free-flowing medium within a blow molding device,
wherein the blow mold has a base part which is releasably disposed on a support, and
wherein a first fastening mechanism fastens the base part to the support, and
wherein the blow mold has at least one side part which is releasably disposed on a support and wherein a second fastening mechanism fastens the side part to the support,
wherein the first fastening mechanism is actuated by a free-flowing medium in order to unlatch the base part from the support and the second fastening mechanism is actuated by a free-flowing medium in order to unlatch the side part from the support, and
a media connection device is provided in order to deliver the free-flowing medium to the fastening mechanisms.

10. The method according to claim 9 , wherein a free-flowing temperature control medium flows through at least one base part and/or a side part of this blow molding device, wherein this temperature control medium is delivered to the base part and/or the side part by a connector.

11. A system for transforming plastic parisons into plastic containers comprising:
at least one transforming station which is arranged on a movable support and which has a blow mold within which the plastic parisons can be expanded by application of a gaseous medium,
wherein the blow mold has a base part which is disposed releasably on a support, and with a fastening mechanism in order to fasten the base part to the support, and/or wherein the blow mold has at least one side part which is disposed releasably on a support, and with a second fastening mechanism in order to fasten the side part to the support,
wherein the system has an actuating device, and the transforming station is designed to be movable in at least one direction of movement of the support relative to this actuating device,
wherein at least one element of the actuating device is suitable and intended for producing a connection by positive and/or non-positive engagement to at least one element of the transforming station and wherein the system has a positioning device in order to position the transforming station relative to the actuating device.

12. The system according to claim 11 , wherein a media connection device is provided to deliver a free-flowing medium to the fastening mechanisms.

13. The system according to claim 11 , wherein the actuating device serves for actuating at least one fastening mechanism.

14. The system according to claim 11 , wherein the actuating device produces a fluid connection to the media connection device—so that at least one fastening mechanism can be acted upon by a free-flowing medium in order to switch this fastening mechanism between at least two positions.

15. The system according to claim 11 , wherein the actuating device has an actuator element, wherein this actuator element has a first positively engaging element, which is suitable and intended for co-operation with a second positively engaging element which is disposed on the transforming station in order thus to produce a positively engaged connection.

16. The system according to claim 11 , wherein the first fastening mechanism can be actuated by a free-flowing medium in order to unlatch the base part from the support and the second fastening mechanism can be actuated by a free-flowing medium in order to unlatch the side part from the support, furthermore, a media connection device is provided in order to deliver the free-flowing medium to the fastening mechanisms.

17. The system according to claim 11 , wherein the system has a gripping device in order to remove the blow mold or parts of the blow mold from the transforming station.

18. The system according to claim 11 , wherein the system has a coupling element in order to produce a flow connection for the free-flowing medium.

19. The system according to claim 11 , wherein the system and in particular the actuating device has at least one operating member for opening the mold support and/or for unlatching the mold support.

20. A method for operating a system for transforming plastic parisons into plastic containers, wherein in a working operation the plastic parisons are expanded by application of a free-flowing medium within a blow molding device, wherein this blow molding device is disposed on a transforming station and this transforming station is disposed on a rotatable support, wherein the blow mold has a base part which is disposed releasably on a support, and the base part is fastened to the support with a fastening mechanism, wherein the blow mold has at least one side part which is disposed releasably on a support, and with a second fastening mechanism in order to fasten the side part to the support, wherein the support is aligned with regard to its rotated position relative to the actuating device and in order to release at least the base part and/or the side part an actuating device is connected to the system in such a way tha

Assignees

• Krones Ag

Inventors

• Geltinger Florian

Classifications

• B29C2049/4864

  Fixed by a special construction to the mould half carriers, e.g. using insulating material between the mould and the mould half carrier · CPC title

• B29C33/28

  using hydraulic or pneumatic means · CPC title

• B29C49/06

  Injection blow-moulding · CPC title

• B29C2049/4858

  Exchanging mould parts, e.g. for changing the mould size or geometry for making different products in the same mould · CPC title

• B29C2049/4856

  Mounting, exchanging or centering moulds or parts thereof (B29C2049/5893 takes precedence) · CPC title