Stretch blow molding machine with rapid prototyping components

Patent metadata

Field	Value
Publication number	US-9085098-B2
Application number	US-201214379690-A
Country	US
Kind code	B2
Filing date	Dec 28, 2012
Priority date	Mar 6, 2012
Publication date	Jul 21, 2015
Grant date	Jul 21, 2015

Abstract

A method for producing a component for a blow molding module of a stretch blow molding machine which as a component to be produced includes at least one of a blow valve, a blow nozzle, a valve block, a stretching rod, a mold carrier, a shell mold one or more single- or multi-part mold inlay(s) with a container contour, and which entails that the component to be produced is completely or partly produced by use of an additive rapid prototyping method, for example by 3D printing or laser sintering, and is produced from one or more of metal, plastic materials, ceramic materials, or from a combination of metal, plastic materials and/or ceramic materials.

First claim

What is claimed is:

1. A method for producing one or more components for a blow molding module of a stretch blow molding machine, each of the components to be produced comprising at least one of a group including a blow valve, a blow nozzle, a valve block, a stretching rod, a mold carrier, a shell mold, and one or more single- or multi-part mold inlays, with a container contour, wherein each of the components to be produced is completely or partly produced by use of an additive rapid prototyping method, and is produced from at least one of a group including metal, plastic materials, ceramic materials, and combinations of at least two of metal, plastic materials, or ceramic materials, and wherein producing the components partly or completely by the use of the additive rapid prototyping method includes producing the components with at least one of continuous material transitions or continuous transitions in material properties.

2. The method according to claim 1 , the components are produced with integrated tempering ducts for cooling or heating.

3. The method according to claim 2 , further including, in producing the components, providing additional ducts that allow media to pass.

4. The method according to claim 2 , further including producing the components with integrated tempering ducts that follow the container contour, the integrated tempering ducts having a spacing of no more than 2 mm to the surface of the mold inlays.

5. The method according to claim 1 , further including, in producing the components, providing the components with undercuts.

6. The method according to claim 5 , wherein the undercuts include at least one of hooks or positive-fit connections that serve to attach the mold inlays within the shell mold or the mold carrier, respectively.

7. The method according to claim 1 , further including providing the surface of the components with a functional coating including at least one of an aseptic coating, a non-adhesion layer, a corrugated layer, or other surface structures, a coating with increased resistance to abrasion, or increased resistance to aggressive media as compared to a base material of the components.

8. The method according to claim 1 , further including, in producing the components, integrating a pressure pad into one of the mold carrier or shell mold by use of the adaptive rapid prototyping method, and producing a connection region between the mold carrier and the pressure pad or between the shell mold and the pressure pad made from elastomeric material, the elastomeric material of the connection region continuously transitioning to a material of the mold carrier or the shell mold.

9. A blow molding module of a stretch blow molding machine, comprising at least one of a group including:
a blow valve,
a blow nozzle,
a valve block,
a stretching rod,
a mold carrier,
a shell mold, and
one or more single- or multi-part mold inlays with a container contour, the blow molding module defining one or more interchangeable components of the stretch blow molding machine, and the components comprising at least one of continuous material transitions or continuous transitions in material properties.

10. The blow molding module according to claim 9 , wherein the components defined by the blow molding module comprises at least one of metal, plastic material, ceramic material, or combinations of at least two of metal, plastic material, and ceramic material.

11. The blow molding module according to claim 9 , wherein the mold inlays and/or the valve block comprises integrated tempering ducts for cooling or heating.

12. The blow molding module according to claim 9 , wherein at least one of the mold inlays, the valve block, the blow nozzle or the stretching rod includes ducts that allow media to pass.

13. The blow molding module according to claim 9 , wherein the components comprise at least one of air ducts, additional ducts that allow media to pass, or tempering ducts that exhibit optimized flow characteristics due to at least one of non-circular or asymmetrical cross-sections.

14. The blow molding module according to claim 9 , wherein the surface of the components at least partially comprises at least one of a functional coating, a non-adhesion layer, a corrugated layer or other surface structures, a coating with increased resistance to abrasion, or a coating having increased resistance to aggressive media as compared to a base material of the components.

15. The blow molding module according to claim 9 , wherein the blow molding module comprises at least a mold carrier including a print head and a mold inlay comprising a recess for the print head.

16. The blow molding module according to claim 9 , wherein the components comprise integrated movable components.

17. The blow molding module according to claim 9 , wherein the blow molding module comprises a shell mold having an integrated pressure pad, a connection region between the mold carrier and the pressure pad or between the shell mold and the pressure pad made from elastomeric material, the elastomeric material of the connection region continuously transitioning to a material of the mold carrier or the shell mold, and wherein the blow molding module comprises a cavity with a compressed air supply duct between the pressure pad and the mold carrier or between the pressure pad and the shell mold.

18. A method for producing containers using a blow molding module of a stretch blow molding machine, the blow molding module of the stretch blow molding machine producing the containers comprising one or more components selected from a group including a blow valve, a blow nozzle, a valve block, a stretching rod, a mold carrier, a shell mold, one or more single- or multi-part mold inlays with a container contour, wherein at least one of the one or more components is produced by an additive rapid prototyping method and is produced from one or more of metal plastic materials, ceramic materials, or one or more of a combination of metal, plastic materials, or ceramic materials, and wherein producing the at least one of the one or more components by the use of the additive rapid prototyping method includes producing the at least one of the one or more components with at least one of continuous material transitions or continuous transitions in material properties.

19. The method according to claim 18 , further including, in producing the at least one of the one or more components, forming integrated tempering ducts for at least one of cooling or heating.

20. The method according to claim 19 , further including, in producing the at least one of the one or more components, providing the blow molding module with additional ducts that allow media to pass.

21. The method according to claim 20 , wherein the blow molding module includes a mold carrier that comprises a print head and at least a part of the additionally produced ducts of the mold inlays are color supply ducts and the containers are imprinted with color by the print head which is controlled by blowing pressure.

Assignees

• Krones Ag

Inventors

• Albrecht Thomas
• Fuehrer Kaj

Classifications

• B29K2905/00

  Use of metals, their alloys or their compounds, as mould material · CPC title

• B29K2909/02

  Ceramics · CPC title

• B29C49/58

  Blowing means · CPC title

• B29K2901/00

  Use of unspecified macromolecular compounds as mould material (use of unspecified rubbers B29K2821/00) · CPC title

• B29C2049/483

  in different areas of the mould at different temperatures, e.g. neck, shoulder or bottom · CPC title