BLOW MOLDING MACHINE COMPRISING A TEMPERATURE REGULATING DEVICE

• US 20200130250A1
• Filed: 10/24/2019
• Published: 04/30/2020
• Est. Priority Date: 10/25/2018
• Status: Active Grant

• Current Assignee: Krones AG (Krones)
• Original Assignee: Krones AG (Krones)
• Inventors: VOTH, Klaus, BUESS, Armin, MOEWES, Simon, SENN, Konrad, BRUNNER, Andreas, HOELLRIEGL, Thomas
• Granted Patent: US 11,034,076 B2
• Time in Patent Office: Days
• CPC Class Codes: B29C 2049/4825 for cooling moulds or mould parts B29C2049/5889 takes precedence
• CPC Class Codes: B29C 2049/4838 for heating moulds or mould parts
• CPC Class Codes: B29C 49/48 Moulds
• CPC Class Codes: B29C 49/64 Heating or cooling preforms, parisons or blown articles
• CPC Class Codes: B29C 49/78 Measuring, controlling or regulating
• CPC Class Codes: B29C 49/786 Temperature
• CPC Class Codes: B29L 2031/7158 Bottles

Abstract

Provided is a machine and method for reshaping plastic parisons into plastic containers, with a mold which has a cavity for the plastic parison to be reshaped, wherein this mold has at least two blow mold parts, wherein each of these blow mold parts has an inner wall which is suitable for forming a region of the plastic parison to be reshaped, wherein these blow mold parts are mounted movably with respect to one another between an open position, in which the blow mold parts are at least partially separated from one another, and a closed position, in which the blow mold parts abut one another, in order together to form the cavity for reshaping the plastic parisons.

Claims

1. A machine for reshaping plastic parisons into plastic containers, with

a mold which has a cavity for the plastic parison to be reshaped, wherein this mold has at least two blow mold parts, wherein each of these blow mold parts has an inner wall which is suitable for forming a region of the plastic parison to be reshaped and wherein these blow mold parts are mounted movably with respect to one another between an open position, in which the blow mold parts are at least partially separated from one another, and a closed position, in which the blow mold parts abut one another, in order together to form the cavity for reshaping the plastic parisons;

at least two blow mold support shells, wherein a blow mold part is fastened releasably to each of these blow mold support shells;

a thermal regulating device of the mold, which has at least one heating device which is suitable for heat exchange with the mold;

wherein the heating device is arranged at least partially and completely in at least one blow mold part.

2. The machine according to claim 1, wherein the heating device is an electrically operated heating device.

3. The machine according to claim 2, wherein at least one first electrical contact element is arranged on the blow mold part in order to connect the heating device electrically to the blow mold part.

4. The machine according to claim 3, wherein in a state in which the blow mold part is mounted on a blow mold support shell, the at least one first electrical contact element is arranged on a surface of the blow mold part facing the blow mold support shell.

5. The machine according to claim 4, wherein a second electrical contact element is arranged on the blow mold support shell and in a mounted state is in electrically conductive contact with the first electrical contact element.

6. The machine according to claim 1, wherein an electrical connection for electrical supply to the heating element can be automatically released or separated.

7. The machine according to claim 1, wherein the machine has a temperature detection device for detecting a temperature of the mold.

8. The machine according to claim 7, wherein this temperature detection device is arranged at least partially in at least one of the blow mold support shells and/or in a support device, which serves to support the blow mold support shells.

9. The machine according to claim 1, wherein the temperature detection device is suitable and intended for determining a temperature of at least one region of the blow mold parts.

10. The machine according to claim 1 wherein the regulating device has a control device which controls the at least one heating device as a function of at least one value detected by the temperature detection device.

11. An arrangement for reshaping plastic parisons into plastic containers with a plurality of devices according to claim 1, wherein these devices are arranged on a movable and in particular rotatable support.

12. A method for reshaping plastic parisons into plastic containers by a mold which has a cavity for the plastic parison to be reshaped, and wherein the mold has two blow mold parts, wherein each of the blow mold parts has an inner wall which forms a region of the plastic parison to be reshaped,

moving the blow mold parts with respect to one another between an open position, in which the blow mold parts are at least partially separated from one another, and a closed position, in which the blow mold parts abut one another, in order together to form the cavity for reshaping the plastic parisons;

and

providing at least two blow mold support shells, wherein a blow mold part is fastened releasably to each of these blow mold support shells; and

heating with a heating device the mold at least intermittently;

wherein the heating device is arranged at least partially and completely in at least one blow mold part.