Method of truing-up the four faces of a piece of wood exhibiting squared section, and a machine unit for the implementation of such a method

A method of truing-up the four faces of a piece of wood exhibiting squared section, comprising the steps of:

• surfacing the bottom face of the work by means of a bottom horizontal axis planing tool;
• squaring the bottom edge of a first side face of the work by means of a first horizontal axis trimming cutter;
• guiding the work along a side fence of height no greater than the difference in radial width between the concentrically aligned bottom planing tool and first trimming cutter;
• surfacing at least the remaining area of the first side face by means of a first horizontal axis cutter, of which at least the vertical face offered to the work occupies the same plane as that occupied by the vertical face of the first trimming cutter;
• surfacing the remaining side face of the work by means of a second horizontal axis cutter;
• surfacing the top face of the work by means of a top horizontal axis planing tool.

A machine unit for truing-up the four faces of a piece of wood exhibiting squared section, comprising:

• a first table serving to support the work;
• a bottom horizontal axis planing tool for surfacing the bottom face of the work, projecting above the first table;
• a first horizontal axis trimming cutter for squaring the bottom edge of a first side face of the work and a first horizontal axis surfacing cutter for surfacing at least the remaining area of the first side face, disposed with axes parallel, of which at least the respective vertical faces offered to the work are aligned within a common plane;
• a second work table, positioned beyond the bottom planing tool along the path followed by the work;
• at least one side fence, aligned with and positioned beyond the first trimming cutter along the path followed by the work, and of height less than the distance to which the first trimming cutter projects from the bottom planing tool;
• a top horizontal axis planing tool for surfacing the top face of the work, positioned above the work;
• at least one second horizontal axis surfacing cutter for surfacing at least the remaining area of the remaining side face of the work, facing the first surfacing cutter;
• means by which the work is fed from one tool to the next, positioned above and operating in combination with at least the second table.

A machine unit for truing-up the four faces of a piece of wood exhibiting squared section, comprising:

• a first table serving to support the work;
• a bottom horizontal axis planing tool for surfacing the bottom face of the work, projecting above the first table;
• a first horizontal axis trimming cutter for squaring the bottom edge of a first side face of the work and a first horizontal axis surfacing cutter for surfacing at least the remaining area of the first side face, disposed with axes parallel, of which at least the respective vertical faces offered to the work are aligned within a common plane;
• a second work table, positioned beyond the bottom planing tool along the path followed by the work;
• at least one side fence, aligned with and positioned beyond the first trimming cutter along the path followed by the work, and of height less than the distance to which the first trimming cutter projects from the bottom planing tool;
• a top horizontal axis planing tool for surfacing the top face of the work, positioned above the work;
• at least one second horizontal axis surfacing cutter for surfacing at least the remaining area of the remaining side face, facing the first surfacing cutter;
• means by which the work is fed from one tool to the next, positioned above and operating in combination with at least the second table.

A machine unit for truing-up the four faces of a piece of wood exhibiting squared section, comprising, substantially in sequence:

• a first table serving to support the work;
• a bottom planing tool, disposed with axis horizontal and provided with a respective first trimming cutter at one end;
• a first surfacing cutter, disposed with axis horizontal and rotated in the same direction as that of the bottom planing tool, of which at least the vertical face offered to the work is aligned in a common plane with the corresponding face of the first trimming cutter;
• a second work table, positioned beyond the bottom planing tool;
• at least one side fence, positioned in alignment with and beyond the first trimming cutter, and of height less than the cutting depth of the first trimming cutter;
• a side fence aligned with and positioned beyond the first surfacing cutter;
• a top planing tool, disposed with axis horizontal and provided with a respective second trimming cutter at one end;
• a second surfacing cutter, disposed with axis horizontal and rotated in the same direction as that of the top planing tool, of which at least the vertical face offered to the work is aligned in a common plane with the corresponding face of the second trimming cutter;
• means by which the work is fed from one tool to the next, positioned above and operating in combination with at least the second table;
• and
• horizontally slidable means, carrying the top planing tool and second trimming cutter together with the second surfacing cutter, and vertically slidable means, associated with a base and supporting the horizontally slidable means, whereby the top planing tool and second cutters can be traversed horizontally and vertically toward and away from the bottom planing tool and the first cutters.