Edge-routing unit for a program-controlled feed-through machine

An edge-routing unit for a program-controlled feed-through machine for machining plate-shaped workpieces (1), wherein each plate-shaped workpiece (1) has a workpiece outline, a narrow surface side (2), a workpiece surface with a contour, a feed-through direction, a longitudinal direction lying in the feed-through direction thereof, and is made of at least one of wood and wood substitutes for panels for one of furniture making and interior finishing, wherein the narrow surface side (2) of each plate-shaped workpiece (1) has thereon an edge strip (3) with a projection, and wherein the machine has a workpiece feed-through direction which is an X-axis and a workpiece thickness direction which is a Z-axis, the edge-routing unit comprising:

• a) a routing motor (6);
• b) a rest (10);
• c) positioning devices (11, 12;
• 13, 14);
• d) a feeler wheel (5);
• e) a fine-positioning slide (15);
• f) an X-positioning drive (18);
• g) a Z-positioning drive (19);
• and
• h) a routing tool (4);
• wherein the routing motor (6) has a shaft (9);
• wherein the routing tool (4) has a diameter;
• wherein the routing tool (4) is on the shaft (9) of the routing motor (6);
• wherein the routing tool (4) is arranged on the rest (10);
• wherein the routing tool (4) by way of the positioning devices (11, 12;
• 13, 14) is controlled so as to run approximately along the workpiece outline and partly with a respective workpiece over a short distance in the workpiece feed-through direction, the X-axis, and perpendicularly thereto in the workpiece thickness direction, the Z-axis;
• wherein the feeler wheel (5) is coaxial to the routing tool (4);
• wherein the feeler wheel (5) has a diameter;
• wherein said diameter of the feeler wheel (5) is equal to the diameter of the routing tool (4);
• wherein the feeler wheel (5) travels over the workpiece surface adjoining the edge strip (3);
• wherein the feeler wheel (5) is supported on the workpiece (1) for follow-up of the routing tool (4) according to the contour sensed by the feeler wheel (5);
• wherein the routing motor (6) is adjustable together with the routing tool (4) on the rest (10) relative to the feeler wheel (5);
• wherein the fine-positioning slide (15) is arranged on the rest (10);
• wherein the fine-positioning slide (15) and the routing motor (6) sit together with the routing tool (4) on the rest (10);
• and
• wherein the fine-position slide (15) is traversable in a motor-operated program-cotrolled manner relative to the rest (10) in the direction of the X-axis and in the direction of the Z-axis, for which purpose the X-positioning drive (18) and the Z-positioning drive (19) are arranged on the rest (10).