System for applying a building material with multiple mixers and movement device

Patent metadata

Field	Value
Publication number	US-11623191-B2
Application number	US-201816633248-A
Country	US
Kind code	B2
Filing date	Aug 9, 2018
Priority date	Aug 9, 2017
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

A system for applying a building material, including: a first component of the building material, including a first constituent and a second constituent; a second component of the building material; a first mixer for mixing the first constituent and the second constituent; a supply device for supplying the first constituent to the mixer; a movement device for modifying a site of application in a space; and a second mixer for mixing the first component and the second component.

First claim

The invention claimed is:

1. A system for applying a building material, the system comprising:
a first component of the building material, the first component comprising a first ingredient comprising cement and an aggregate and a second ingredient comprising water;
a second component of the building material comprising a hardening accelerator;
a first mixer configured to mix the first ingredient and the second ingredient of the first component;
a supply device configured to supply the first ingredient of the first component to the first mixer; and
a movement device having at least a movable portion, a stationary portion, and a second mixer that is arranged on the movable portion, the movement device configured to change a site of application in a space,
wherein (i) the second mixer is configured to mix the first component and the second component, and (ii) the movement device is configured to move the second mixer relative to at least the stationary portion of the moving device to apply the building material, and to construct a structure from the building material at the site of application.

2. The system as claimed in claim 1 , wherein at least one of the first mixer and the second mixer is constructed modularly and comprises a drive module with a first coupler, and a mixing chamber module with a second coupling coupler, wherein the modules are operatively connected to each other in a use state via the first coupler and the second coupler.

3. The system as claimed in claim 1 , wherein the first mixer is arranged in a stationary manner.

4. The system as claimed in claim 1 , wherein at least one of the first mixer and the second mixer comprises a stirring shaft which is equipped with at least one pin disposed on a first portion of the stirring shaft and on which a conveyor is arranged on a second portion of the stirring shaft.

5. The system as claimed in claim 1 , wherein the supply device comprises a storage device and a metering device.

6. The system as claimed in claim 5 , wherein at least one of (i) the metering device is designed as a gravimetric metering device, and (ii) the storage device comprises a hopper and a conveyer.

7. The system as claimed in claim 1 , wherein the system comprises at least one of a first pump and a second pump, and
at least one of (i) the first component is configured to be pumped from the first mixer to the second mixer by the first pump, and (ii) the second component is configured to be pumped to the second mixer by the second pump.

8. A method for producing a structure from a building material, the method comprising:
providing a first ingredient of a first component of the building material, the first ingredient comprising cement and an aggregate;
providing a second ingredient of the first component of the building material, the second ingredient comprising water;
mixing the first ingredient and the second ingredient of the first component in a first mixer;
providing a second component of the building material comprising a hardening accelerator;
mixing the first component and the second component in a second mixer;
moving a movement device for changing a site of application in a space, the movement device having at least a movable portion, a stationary portion, and the second mixer, which is arranged on the movable portion; and
applying the building material,
wherein the movement device is configured to move the second mixer relative to at least the stationary portion of the moving device to apply the building material, and to construct a structure from the building material at the site of application.

9. The method as claimed in claim 8 , wherein at least one of the first mixer and the second mixer is operated at a rotational speed of more than 500 revolutions per minute.

10. The method as claimed in claim 8 , wherein at least one of (i) during the mixing in the first mixer, an average residence time of the ingredients in the mixer is less than 40 s, and (ii) during the mixing in the second mixer, an average residence time of the components of the building material in the mixer is less than 20 s.

11. The method as claimed in claim 8 , wherein at least one of (i) during the providing of the first ingredient of the first component of the building material, the first ingredient is metered gravimetrically, and (ii) during the providing of the second ingredient of the first component of the building material, the second ingredient is metered volumetrically.

12. The method as claimed in claim 8 , wherein the building material is applied in at least partially overlapping layers such that a structure is constructed in the manner of a 3D printer.

Assignees

• Sika Tech Ag

Inventors

• Kuhn Patrik
• Bourquin Raphael
• Brühwiler Armin
• Lootens Didier

Classifications

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B01F27/1921

  comprising helical elements and paddles · CPC title

• B28C5/1253

  with discharging devices (B28C5/1276, B28C5/1292 take precedence) · CPC title

• E04B1/16

  Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material (E04B1/32 - E04B1/36 take precedence) · CPC title

• B01F27/213

  characterised by the connection with the drive · CPC title