Machine tool with an exhaust hood
AssigneeLeitz GmbH & Co. KG
InventorsMarkus Johannes Ernesto Beyeler, Andreas Kisselbach, Juergen Graef
Life of this patent
Estimating the term…
Abstract
A machine tool, in particular a wood-working machine, with a tool for chip removal rotating in direction of rotation D and a suction hood covering the tool with a partially opened circumferential wall that has a radial spacing A from the tool and that has a suction nozzle for suctioning off chips. In the machine tool rotating air vortices directed in the opposite direction based on the direction of rotation D of the tool can be generated in the suction hood in the area of the suction nozzle during the chip removal.
Claims23
A machine tool comprising:
- a tool for chip removal rotating in direction of rotation D;
- a suction hood covering the tool with a partially opened circumferential wall that has a radial spacing A from the tool, the suction hood has a suction nozzle for suctioning off chips,
- wherein rotating air vortices directed in an opposite direction based on the direction of rotation D of the tool are generated in the suction hood in an area of the suction nozzle during the chip removal and, to generate the air vortices in a region of the suction nozzle or directly behind the suction nozzle, the circumferential wall of the suction hood has at least one radius of curvature r, which is smaller than the radius R of the tool so a deflection of the air flow is produced counter to the direction of rotation D of the tool in such a way that, at an end point of a peripheral wall of the suction nozzle, a direction vector (V1) of the air vortices at the tool and a direction vector (V2) of the air vortices are directed in opposite directions.
A machine tool for working wood, comprising
- a suction nozzle;
- a tool having a direction of rotation D and a radius R;
- and
- a suction hood having a partially opened circumferential wall, the suction hood comprises the suction nozzle, the suction hood structured to generate air vortices directed in an opposite direction with respect to the direction of rotation D of the tool in an interior of the suction hood in an area of the suction nozzle during chip removal and, to generate the air vortices in a region of the suction nozzle or directly behind the suction nozzle, the circumferential wall is configured so a deflection of the air flow is produced counter to the direction of rotation D of the tool in such a way that, at an end point of a peripheral wall of the suction nozzle, a direction vector (V1) of the air vortices at the tool and a direction vector (V2) of the air vortices are directed in opposite directions.
A machine tool for working wood, comprising
- a suction nozzle;
- a tool having a direction of rotation D and a radius R;
- and
- a suction hood having a partially opened circumferential wall enclosing the suction hood, the suction hood comprises the suction nozzle, the suction hood structured to generate air vortices directed in an opposite direction with respect to the direction of rotation D of the tool in an interior of the suction hood in an area of the suction nozzle during the chip removal and, to generate the air vortices in a region of the suction nozzle or directly behind the suction nozzle, the circumferential wall is configured so a deflection of the air flow is produced counter to the direction of rotation D of the tool in such a way that, at an end point of a peripheral wall of the suction nozzle, a direction vector (V1) of the air vortices at the tool and a direction vector (V2) of the air vortices are directed in opposite directions, wherein the partially opened circumferential wall is structured such that through alignment of the air vortices in opposite directions, a blocking action is achieved, which prevents low-mass chips and particulates from leaving the suction hood.
Dependencies are inferred from the claim text.