# US 10,307,956 B2 · Device and method for coating workpieces

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- Number: US 10,307,956 B2
- Document ID: US10307956B2
- Status: Granted
- Kind: B2
- Application number: 15/390,956
- Filed: 2016-12-27
- Published: 2017-04-20
- Granted: 2019-06-04
- Earliest claimed: 2009-04-22
- Assignees: Homag Holzbearbeitungssysteme AG
- Applicants: Homag Holzbearbeitungssysteme AG
- Inventors: Johannes Schmid; Achim Gauss; Joachim Fetscher
- Web page: https://patentgrep.com/patent/US10307956B2

## CPC

- B29C 63/0065: {Heat treatment}
- B27D 5/003: {securing a veneer strip to a panel edge (fitting a tenonned strip to a grooved panel edge B27M3/0026)}
- B29C 63/0004: {Component parts, details or accessories; Auxiliary operations}
- B29C 63/003: {continuously}
- B29C 63/02: using sheet or web-like material (B29C63/26 {and B29C63/38} take precedence)
- B29C 2063/485: {the liquid being an adhesive}
- B29K 2305/02: Aluminium
- B29K 2311/14: Wood, e.g. woodboard or fibreboard
- Y10T 156/10: Methods of surface bonding and/or assembly therefor
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B27D: WORKING VENEER OR PLYWOOD (applying liquids or other fluent materials to surface in general B05; grinding, sanding, or polishing of wood B24; applying adhesives or glue to surfaces of wood B27G11/00; manufacture of veneer B27L5/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The invention concerns a device (1) for the coating of workpieces (2) which preferably consist, at least in sections, of wood, wooden materials, plastics, aluminium or the like, comprising: a feed means (10) for feeding a coating material (12), a pressing means (20) for pressing the coating material (12) onto a surface (2a) of a workpiece (2), a conveyor means (4) for causing a relative motion between the pressing means (20) and the respective workpiece (2), and a first joining means (30; 50) for applying and/or activating an adhesive agent on a coating material (12) fed by the feed means (10) and/or a surface to be coated of the workpiece (2), characterized in that the device further comprises at least a second joining means (40; 60) for applying and/or activating an adhesive agent on a coating material (12) fed by the feed means (10) and/or a surface to be coated of a workpiece (2).

## Claims

### Claim 1

A method of coating first and a second workpiece by a coating device comprising the steps of:
causing a relative motion between a pressing device and first and second workpiece by a conveyor of the coating device;
providing multiple different coating materials in a feeding device of the coating device, which materials are applied to the workpiece or workpieces;
providing a first joining device of the coating device for activating an adhesive on a first coating material fed by the feeding device;
providing a second joining device of the coating device for applying an adhesive agent on a surface to be coated of the workpieces fed by the feeding device;
wherein said first and/or second joining devices further comprise an energy source selected from the group consisting of a laser, an infrared source, an ultrasound source, a magnetic field source, a microwave source, a plasma source, and a gassing source,
choosing between activation of the first coating material by the first joining device and application of the second coating material, wherein the first and second joining devices are both stored in the coating device;
feeding the first coating material from the coating device to said pressing device;
activating the adhesive on the first coating material fed by the feeding device from the first joining device and applying the coating material on the first workpiece,
applying the adhesive agent on a surface to be coated of the second workpiece,
feeding the second coating material to said pressing device; and
applying the second coating material to the surface of the workpiece being provided with the adhesive agent.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising moving at least one energy source from a joining position into a rest position after activating the adhesive agent.

### Claim 3 (depends on 1)

The method according to claim 1, wherein said first and second workpieces further comprise at least one material selected from the group consisting of a wood material, a plastic material and a metallic material.

### Claim 4 (depends on 1)

The method of claim 1 further comprising providing a controller for activating the first joining device and the second joining device.

### Claim 5 (depends on 1)

The method of claim 1 further comprising providing at least one device to move at least one of the first and second joining means between a joining position and a rest position.

### Claim 6 (depends on 1)

The method of claim 1 further comprising releasably inserting at least one of said first and second joining devices into a collet while in a joining position.

### Claim 7 (depends on 1)

The method of claim 1 further comprising mounting at least one of said first and second joining devices to a displaceable guide mechanism.

### Claim 8 (depends on 1)

The method of claim 1 wherein the first and second joining devices are moveable between a joining position and a standby position.