Device and method for applying a reactive mixture comprised of at least two components to a substrate

Patent metadata

Field	Value
Publication number	US-9919332-B2
Application number	US-201314385704-A
Country	US
Kind code	B2
Filing date	Mar 21, 2013
Priority date	Mar 27, 2012
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A device and method for applying a reactive mixture comprised of at least two components to a substrate ( 41 ) having a spraying device ( 10 ) capable of generating a planar, fan-shaped spray jet ( 18 ) and a round spray jet ( 17 ), and having a means for moving the spraying device relative to the substrate, wherein the spraying device is moved over the substrate in at least two stages, wherein in the first stage, a first application of material ( 42 ) is performed with reactive mixture, using the planar, fan-shaped spray jet, on the substrate, and in a further stage a second application of material ( 43 a - c ) is subsequently performed with reactive mixture, using the round spray jet, on at least a section of the material applied to the substrate in the first application of material.

First claim

The invention claimed is:

1. A device for applying a reactive mixture comprised of at least two components to a substrate, said device comprising:
a spraying device configured to generate a spray jet having a shape with a spray width extending in a planar direction and an essentially round spray jet; and
a handling unit configured to move the spraying device relative to the substrate in at least two stages over the substrate such that in a first stage the spraying device effects with the planar, fan-shaped spray jet a first application of material with a reactive mixture onto the substrate, and in a second stage the spraying device effects with the round spray jet a second application of material with a reactive mixture onto at least a section of the material applied onto the substrate in the first application of material,
wherein the spraying device includes a first mixing head having a planar jet nozzle configured to generate the spray jet having the shape with the spray width extending in the planar direction, and a second mixing head having a round jet nozzle configured to generate the round spray jet.

2. The device of claim 1 , wherein the second mixing head is provided with a coaxial fibre feed.

3. The device of claim 2 , further comprising a fibre cutting facility attached to the spraying device.

4. The device of claim 1 , wherein the handling unit is a robot.

5. The device of claim 1 , further comprising a reception unit configured to receive the substrate and to alter a position of the substrate such that material is applicable onto both sides of the substrate.

6. The device of claim 5 , wherein the reception unit is configured to turn the substrate.

7. A device for applying a reactive mixture comprised of at least two components to a substrate, said device comprising:
a spraying device configured to generate a spray jet having a shape with a spray width up to no more than 800 mm extending in a planar direction and an essentially round spray jet; and
a handling unit configured to move the spraying device relative to the substrate in at least two stages over the substrate such that in a first stage the spraying device effects with the planar, fan-shaped spray jet a first application of material with a reactive mixture onto the substrate, and in a second stage the spraying device effects with the round spray jet a second application of material with a reactive mixture onto at least a section of the material applied onto the substrate in the first application of material.

Assignees

• Krauss Maffei Tech Gmbh

Inventors

• Scheidt Ernst
• Renkl Josef

Classifications

• B05B1/04

  in flat form, e.g. fan-like, sheet-like · CPC title

• B29C70/305

  Spray-up of reinforcing fibres with or without matrix to form a non-coherent mat in or on a mould (B29C41/365, B29C70/32, B29C70/34, B29C70/502, B29C70/508 take precedence; coating a former by spraying plastics B29C41/08) · CPC title

• B29B7/7438 Primary

  Mixing guns, i.e. hand-held mixing units having dispensing means (B29B7/761, B29B7/7678 take precedence) · CPC title

• B05B15/08 Primary

  Operations & Transport · mapped topic

• Y10S901/43

  Spray painting or coating · CPC title