Overturning device for overturning molten material and rinsing method

Patent metadata

Field	Value
Publication number	US-10625458-B2
Application number	US-201515508414-A
Country	US
Kind code	B2
Filing date	Sep 2, 2015
Priority date	Sep 3, 2014
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

The present invention relates to an overturning device (10) for overturning a molten material (200) in a melt channel (110) comprising a melt inlet (20) and a melt outlet (30), wherein between the melt inlet (20) and the melt outlet (30) at least a melt guidance means (40) is assembled for a rearrangement of molten material (200) from the centre (22) of the melt inlet (20) to the edge (34) of the melt outlet (30) and for a rearrangement of molten material (200) from the edge (24) of the melt inlet (20) into the centre (32) of the melt outlet (30).

First claim

The invention claimed is:

1. A system comprising:
an overturning device for overturning a molten material in a melt channel, the overturning device comprising:
a melt inlet,
a melt outlet, and
a melt guidance piece having an outer surface that in conjunction with an inner surface or outer surface of the melt channel forming a first guidance channel and a second guidance channel, the first guidance channel configured to rearrange molten material from the centre of the melt inlet to the edge of the melt outlet, and the second guidance channel configured to rearrange molten material from the edge of the melt inlet into the centre of the melt outlet; and

a shifting device configured to move the overturning device between a first position in which the melt inlet and the melt outlet of the overturning device are in a fluid communicating connection with the melt channel and a second position in which the melt inlet and the melt outlet are separated from the melt channel.

2. The system according to claim 1 , wherein the overturning device comprises a separation section with a first separation channel and a second separation channel, wherein in front of the separation section a division section for dividing the molten material to the separation channels and at least after the separation section a combination section for merging the molten material from the separation channels is assembled or the combination section is configured for a central merging of the edge sections of the molten material.

3. The system according to claim 1 , wherein the shifting device comprises a melt channel piece with a length which corresponds to the distance between the melt inlet and the melt outlet.

4. The system according to claim 1 , wherein the shifting device comprises a guidance section for guiding the movement of the overturning device between the first position and the second position.

5. The system according to claim 1 , wherein the shifting device is configured to move the overturning device between the first position and the second position along a translational path.

6. The system according to claim 1 , wherein the shifting device comprises a drive device for performing the shifting between the first position and the second position.

7. The system according to claim 5 , wherein the translational path is a straight line.

8. The system according to claim 6 , wherein the shifting device comprises a drive device in form of an electric motor for performing the shifting between the first position and the second.

Assignees

• Windmoeller & Hoelscher

Inventors

• Backmann Martin
• Jäckering Hermann-Josef
• Bussmann Markus
• Liesbrock Bernd
• Golubski Karsten

Classifications

• B29C48/277

  of materials · CPC title

• B29C48/32

  with annular openings, e.g. for forming tubular articles · CPC title

• B29B7/802

  Constructions or methods for cleaning the mixing or kneading device (cleaning in general B08B) · CPC title

• B29C48/2692

  Material change · CPC title

• B29C48/705

  in the die zone, e.g. to create flow homogeneity · CPC title