Device for preparing and applying adhesive

Patent metadata

Field	Value
Publication number	US-10471459-B2
Application number	US-201515317431-A
Country	US
Kind code	B2
Filing date	May 7, 2015
Priority date	Jun 12, 2014
Publication date	Nov 12, 2019
Grant date	Nov 12, 2019

Abstract

The invention relates to a device for preparing and applying adhesive, comprising a feed unit, a preparing unit, and an application unit, wherein the feed unit is used to feed a basic component of the adhesive and/or of at least one additive, wherein the preparing unit effects continuous mixing of the basic component of the adhesive with the one or more fed additives to form the prepared adhesive and continuous conveying of the prepared adhesive, wherein the adhesive prepared in such a way is conveyed from the preparing unit into the application unit and can be applied to a workpiece by the application unit.

First claim

The invention claimed is:

1. A device for preparing and applying an adhesive having at least one additive, the device comprising:
an infeed unit;
a preparation unit; and
an application unit;
wherein the infeed unit is configured to infeed either or both of a basic component of the adhesive and the at least one additive,
wherein the preparation unit comprises a housing bounding a mixing chamber, wherein the preparation unit has helical duct routing for introducing the basic component of the adhesive into the mixing chamber,
wherein the preparation unit is configured to effect continuous mixing of the basic component of the adhesive and the at least one additive so as to form the adhesive,
wherein the preparation unit is configured to continuously convey the adhesive from the preparation unit into the application unit,
wherein the application unit is configured to apply the adhesive to a workpiece,
wherein the basic component of the adhesive is a solid, granules, or a powder, wherein the infeed unit or the preparation unit has a heater for melting the basic component of the adhesive or the at least one additive,
wherein the application unit has an adhesive applicator, wherein the adhesive applicator is a nozzle or an application roller,
wherein the application unit has a reservoir configured for an intermediate storage of a defined amount of the adhesive.

2. The device as claimed in claim 1 ,
wherein the infeed unit or the preparation unit has a metering unit for infeeding the basic component of the adhesive or at least one additive in a metered manner.

3. The device as claimed in claim 1 ,
wherein the infeed unit is configured to allow manual infeeding of the basic component of the adhesive or of at least one additive.

4. The device according to claim 1 ,
wherein the infeed unit or the preparation unit comprises at least one pump configured to effect continuous infeeding or conveying of the basic component of the adhesive.

5. The device according to claim 1 ,
wherein the preparation unit has a mixing device configured for mixing the basic component of the adhesive or at least one additive.

6. The device according to claim 5 ,
wherein the mixing device comprises a dynamic mixing element configured to be driven by a rotatable mixing means.

7. The device according to claim 5 ,
wherein the mixing chamber has an outlet opening configured for discharging the mixed adhesive to the application unit.

8. The device according to claim 5 ,
wherein the mixing chamber has a static mixing element or dynamic mixing element.

9. The device according to claim 8 ,
wherein the static mixing element is a stationary mixing element arranged in the mixing chamber or on a wall of the mixing chamber, wherein the static mixing element is formed by a hollow-cylindrical chamber having a helically configured flow path therein.

10. The device according to claim 9 ,
wherein the static mixing element is configured by a helical spiral that is disposed or configured on the wall of the mixing chamber.

11. The device according to claim 9 ,
wherein the helically configured flow path is formed by a helical spiral inserted into the hollow-cylindrical chamber.

12. The device according to claim 1 ,
wherein the reservoir is configured to continue to convey the adhesive into the application unit when the infeed unit and the preparation unit are temporarily not functioning.

13. The device according to claim 1 ,
wherein the application roller is configured in the reservoir to rotate to allow mixing therein.

14. The device according to claim 1 ,
wherein the infeed unit or the preparation unit is configured to allow a controlled infeeding of the basic component of the adhesive or of the at least one additive.

15. The device according to claim 1 ,
wherein the infeed unit or the preparation unit comprises at least one pump configured to effect continuous or discrete infeeding of at least one additive.

16. The device according to claim 12 ,
wherein the reservoir is configured to convey the adhesive into the application unit when the preparation unit is being filled or due to a changeover of the at least one additive from one composition to another.

17. The device according to claim 1 ,
wherein the at least one additive comprises a dye.

18. The device according to claim 1 ,
wherein the at least one additive comprises a substance which improves moisture resistance.

19. The device according to claim 1 ,
wherein the at least one additive comprises a substance which improves resistance to the formation of mold.

20. The device according to claim 1 ,
wherein the at least one additive comprises a biocide.

21. The device according to claim 1 ,
wherein the at least one additive comprises an additive for improving absorption of energy.

22. The device according to claim 1 ,
wherein the at least one additive comprises a primer for improving adhesive bonding.

23. A device for preparing and applying an adhesive having at least one additive, the device comprising:
an infeed unit;
a preparation unit; and
an application unit comprises an application roller
wherein the infeed unit is configured to infeed either or both of a basic component of the adhesive and the at least one additive,
wherein the preparation unit comprises a housing bounding a mixing chamber, wherein the preparation unit has helical duct routing for introducing the basic component of the adhesive into the mixing chamber,
wherein the preparation unit is configured to effect continuous mixing of the basic component of the adhesive and the at least one additive so as to form the adhesive,
wherein the preparation unit is configured to continuously convey the adhesive from the preparation unit into the application unit,
wherein the application unit is configured to apply the adhesive to a workpiece,
wherein the basic component of the adhesive is a solid, granules, or a powder, wherein the infeed unit or the preparation unit has a heater for melting the basic component of the adhesive or the at least one additive,
wherein the preparation unit has a mixing device configured for mixing the basic component of the adhesive or at least one additive, wherein the mixing device comprises a dynamic mixing element configured to be driven by a rotatable mixing means.

24. A device for preparing and applying an adhesive having at least one additive, the device comprising:
an infeed unit;
a preparation unit; and
an application unit;
wherein the infeed unit is configured to infeed either or both of a basic component of the adhesive and the at least one additive,
wherein the preparation unit comprises a housing bounding a mixing chamber, wherein the preparation unit has helical duct routing for introducing the basic component of the adhesive into the mixing chamber,
wherein the preparation unit is configured to effect continuous mixing of the basic component of the adhesive and the at least one additive so as to form the adhesive,
wherein the preparation unit is configured to continuously convey the adhesive from the preparation unit into the application unit,
wherein the application unit is configured to apply the adhesive to a workpiece,
wherein the basic component of the adhesive is a solid, granules, or a powder, wherein the infeed unit or the preparation unit has a heater for melting the basic component of the adhesive or the at least one additive,
wherein th

Assignees

• Homag Gmbh
• Henkel Ag & Co Kgaa

Inventors

• Schmid Johannes
• Hoffmann Knut
• Lotz Jürgen

Classifications

• B29B7/60

  for feeding, e.g. end guides for the incoming material {(B29B7/7615 takes precedence; feeding predetermined amounts for mixing in general B01F35/714)} · CPC title

• B05C1/08 Primary

  using a roller {or other rotating member which contacts the work along a generating line} · CPC title

• B29B7/325

  Static mixers (in general B01F25/42) · CPC title

• B29B7/40

  with single shaft · CPC title

• B05C11/1042

  provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus · CPC title