Method for separating profiled foils
AssigneeSulzer Chemtech AG
InventorMartin Bär
Life of this patent
Estimating the term…
Abstract
The method for separating a profiled foil (5) is carried out using a rotating separation foil (1) which forms a planar surface with a circular periphery (11). The separation foil is rotated (1a) about the circle center (10) and in the plane (10a), the foil plane, which is spanned by the surface. The periphery is brought into contact (15) with the profiled foil by the execution of a relative movement (1b). In this, through abrasion, material (6) is removed and a separation gap (51) is produced in the profiled foil. Material is largely removed from the profiled foil only.
Claims11
A method for separating a profiled foil comprising rotating a planar, circular separating foil in a rotational plane, holding the profiled foil at a cutting location, moving the rotating separating foil relative to the profiled foil so that a peripheral portion of the separating foil forms a cut through the profiled foil, forming a stabilization gap between opposing stationary walls at the cutting location in substantial alignment with the separating foil, arranging the walls to provide a spacing between the walls which is 0.1 to 0.5 mm greater than a thickness of the separating foil, and stabilizing the rotating separating foil by moving a segment of the rotating separating foil through the stabilization gap so that air pressure forms on each side of the separating foil segment disposed in the stabilization gap and centers the foil in the gap to prevent contact between the rotating separating foil and the walls.
A plant for separating a profiled foil by rotating a planar, circular separating foil in a rotational plane and cutting the profiled foil at a cutting location, the plant comprising a drive for rotating the separating foil at the cutting location, a linear motor coupled with the drive for moving the profiled foil and the separating foil relative to each other, a holder for fixing the profiled foil at the cutting location, first and second, parallel, opposing, spaced-apart walls defining a stabilization gap between them at the cutting location which is in substantial alignment with the separating foil, a spacing between the walls being 0.1 to 0.5 mm greater than a thickness of the separating foil so that, during operation of the plant, air pressure forms on each side of the separating foil segment in the stabilization gap and centers the foil in the gap to prevent contact between the rotating separating foil and the walls, a conveyor for moving the profiled foil to the cutting location, and a control device for automatically operating the plant.
Dependencies are inferred from the claim text.