Fin block for a calibrating device

Patent metadata

Field	Value
Publication number	US-11639019-B2
Application number	US-201917428500-A
Country	US
Kind code	B2
Filing date	Nov 26, 2019
Priority date	Mar 21, 2019
Publication date	May 2, 2023
Grant date	May 2, 2023

Abstract

A fin block is provided for a calibrating device for the calibrating of an extruded plastic profile, wherein the fin block includes a back structure and a fin structure having a plurality of fins. The fins are spaced apart from one another and arranged on the back structure in longitudinal direction (L) of the back structure. The back structure of the fin block has a plurality of apertures, the shape and/or arrangement of which within the back structure depends on a predetermined mechanical load capacity for the back structure. Furthermore, a method for the production of the above-mentioned fin block and a calibrating device, which includes a plurality of the above-mentioned fin blocks, is provided. Furthermore, a system for the additive manufacture of the above-mentioned fin block, a corresponding computer program and a corresponding data set is provided.

First claim

What is claimed is:

1. A fin block for a calibrating device for calibrating an extruded profile, the fin block comprising:
a back structure extending between opposite first and second ends thereof in a longitudinal direction of the fin block; and
a fin structure having a plurality of fins, wherein the plurality of fins are spaced apart from one another and arranged on the back structure in the longitudinal direction of the back structure, wherein the plurality of fins extend directly outwards from the back structure,
wherein the back structure has opposite first and second end portions and a middle portion disposed therebetween, the first end portion being disposed adjacent the first end of the back structure and the second end portion being disposed adjacent the second end of the back structure,
wherein each of the first and second end portions and the middle portion of the back structure has a plurality of apertures extending therethrough in a direction perpendicular to the longitudinal direction of the back structure, the shape and/or arrangement of which within the back structure depends on a predetermined mechanical load capacity for the back structure,
wherein a cross-sectional shape and size of one aperture of the plurality of apertures extending through the first end portion are different than a cross-sectional shape and size of one aperture of the plurality of apertures extending through the middle end portion,
wherein the apertures are configured in their cross-sectional shape and arranged along the back structure in such a way that the back structure has an optimized dead weight whilst maintaining the predetermined mechanical load capacity.

2. The fin block according to claim 1 , wherein the back structure has a profile which is predetermined in cross-section to the longitudinal direction and is adapted to the predetermined mechanical load capacity.

3. The fin block according to claim 1 , wherein the fin block is formed in one piece.

4. The fin block according to claim 1 , wherein the back structure and the fin structure are made from the same material or from different materials.

5. The fin block according to claim 1 , wherein the back structure and/or the fin structure are formed from a metallic material or from a polymer material.

6. The fin block according to claim 1 , wherein the fin block is produced by means of 3D printing or respectively by means of an additive manufacturing method.

7. The fin block according to claim 1 , wherein the back structure has first and second bores formed therein and spaced from one another in the longitudinal direction, wherein each of the first and second bores extends perpendicularly to the longitudinal direction and in a direction from a top wall of the back structure towards the fin structure, and wherein the middle portion of the back structure extends between said first and second bores.

8. The fin block according to claim 1 , wherein a cross-sectional shape and size of one aperture of the plurality of apertures extending through the second end portion are the same as the cross-sectional shape and size of said one aperture extending through the first end portion.

9. The fin block according to claim 1 , wherein the plurality of apertures extending through the first end portion of the back structure are defined by a frame defining a single cut-out in the first end portion, and a pair of intersecting struts that subdivide said single cut-out into said plurality of apertures.

10. The fin block according to claim 1 , wherein the back structure has first and second bores formed therein and spaced from one another in the longitudinal direction, wherein each of the first and second bores extends perpendicularly to the longitudinal direction and in a direction from a top wall of the back structure towards the fin structure, and wherein the middle portion of the back structure extends between said first and second bores,
wherein a cross-sectional shape and size of one aperture of the plurality of apertures extending through the second end portion are the same as the cross-sectional shape and size of said one aperture extending through the first end portion, and
wherein the plurality of apertures extending through the first end portion of the back structure are defined by a frame defining a single cut-out in the first end portion, and a pair of intersecting struts that subdivide said single cut-out into said plurality of apertures.

Assignees

• Krauss Maffei Tech Gmbh

Inventors

• Esswein Michael
• Altmann Aron

Classifications

• B29C48/09

  Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels · CPC title

• B29C48/908

  characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting · CPC title

• B29C48/904

  using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication · CPC title

• B22F2003/166

  Surface calibration, blasting, burnishing, sizing, coining · CPC title

• B29C48/903

  externally · CPC title