Methods and arrangements relating to edge machining of building panels

Patent metadata

Field	Value
Publication number	US-9314888-B2
Application number	US-201414567483-A
Country	US
Kind code	B2
Filing date	Dec 11, 2014
Priority date	Jul 31, 2009
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

A tool configuration 68, 68 ′ incorporating a preprocessing step 67, 67 ′ and a method incorporating the tool configuration with its preprocessing step, producing an improved locking system of a floor panel 1, 1 ′. With the special tool configuration, and the preprocessing step changing the properties of the surface layer, certain surfaces are profiled of the joint edge of the floor panel, resulting in decreased tolerances. An equipment having an upper belt or chain guided in a horizontal direction, by an upper guiding device, and configured to press the floor panel vertically towards the lower chain, decreasing the tolerances of the produced floor panel as well.

First claim

The invention claimed is:

1. A method for producing mechanical locking systems in a floor panel using a first tool configuration, the floor panel comprising:
a surface layer, a core and mechanical locking systems on a first and second edge for horizontal locking of the floor panel with similar other panels, the mechanical locking system comprising:
a first pair of locking surfaces in the first edge of a panel and a second pair of locking surfaces in the opposite second edge, the first pair of locking surfaces comprises a first upper edge and a locking element, the second pair of locking surfaces comprises a second upper edge and a locking groove,
wherein the method comprises:
displacing the floor panel in a feeding direction with its first edge relative to a first tool configuration, the first tool configuration comprises a first tool body and a second tool body positioned on a same side of a first column having two opposite column sides,
forming by the first and second tool body at least a part of the first pair of locking surfaces

wherein the first tool configuration is a rotating tool configuration comprising the first tool body having a first tool disk and the second tool body having a second tool disk, and the method comprising driving the first and second tool disk with one rotary shaft, the disks being adjustable in relation to each other.

2. The method according to claim 1 , further comprising displacing the floor panel in the feeding direction with its second edge relative to a second tool configuration, and the second tool configuration comprises a first tool body and a second tool body positioned on a same side of a second column having two opposite column sides,
forming by the second tool configuration at least a part of at least one of the surfaces of the second pair of locking surfaces.

3. The method according to claim 2 , wherein the first tool body of the second tool configuration comprises a first tool disk and the second tool body of the second tool configuration comprises a second tool disk, and wherein the method further comprises driving the first tool disk of the second tool configuration with a first rotary shaft and the second tool disk of the second tool configuration with a second rotary shaft, the first and second rotary shaft being mounted on the same side of the column.

4. The method according to claim 1 , the method comprising machining with the first tool configuration having at least the first tool disk surface substantially parallel with a vertical tool angle of the first tool configuration or parallel with a locking angle of any one of the locking surfaces, or substantially parallel with any angle between a vertical tool angle of the first tool configuration and a locking angle of any one of the locking surfaces.

Assignees

• Valinge Innovation Ab

Inventors

• Pervan Darko
• Bergelin Marcus
• Boo Christian

Classifications

• Y10T29/49623

  Static structure, e.g., a building component · CPC title

• Y10T29/49629

  Panel · CPC title

• Y10T29/49826

  Assembling or joining · CPC title

• B27F1/06

  simultaneously along opposite edges of a board · CPC title

• Y10T29/49995

  Shaping one-piece blank by removing material · CPC title