Device and method for breaking off and separating finished products
AssigneeKama GmbH
InventorsJohannes Helbig, Steffen Pieper
Life of this patent
Estimating the term…
Abstract
A device and a method suitable for a sheet punching and embossing machine, is employed for separating finished products and scrap material of a punched sheet while the sheet is moved in a transport direction, with the finished products and scrap material adjoining one another at punching lines. The device includes a break-off element which can be moved intermittently away from a second plane and towards the second plane between a break-off position and a rest position. The application of force onto the scrap material ends before the track of the applied force crosses an unevenly arranged punching line, and the application of force is resumed after the track of the applied force has crossed an evenly arranged punching line.
Claims11
A device for breaking off and separating finished product and waste product of a punched sheet, which are adjacent to one another on punching lines, while the sheet is moving in a conveying direction, in particular for a sheet-fed punching and embossing machine, comprising
- a first conveying unit for inward conveying of sheets along the conveying direction in a first plane at a first speed, having a continuous first belt, which is guided along deflection rollers, and a holding-down means, wherein the holding-down means is pushable onto the first belt,
- at least one breaking-off means for breaking off finished product from the sheet, wherein the at least one breaking-off means, in a second plane which is not parallel in relation to the first plane, is pushable onto the first belt,
- a first drawing-off means for outward conveying of the waste product which is separated from the finished product in the second plane, wherein the first drawing-off means is pushable onto the first belt, and
- a second conveying unit, for outward conveying of finished product at a second speed in a third plane which is not parallel in relation to the second plane, having a continuous second belt which is guided along deflection rollers, and having a second drawing-off means, wherein the second drawing-off means is pushable onto the second belt, wherein the breaking-off means is movable in a clocked manner between a breaking-off position and a rest position, away from the second plane and toward the second plane.
A method for breaking off and separating finished product and waste product of a punched sheet, which are adjacent to one another on punching lines, while the sheet is moving in a conveying direction, comprising
- conveying the sheet in a first plane,
- breaking off the finished product from the waste product by deflecting the waste product from the first plane into a second plane which is not parallel in relation to the first plane, and onward conveying of the waste product in the second plane,
- onward conveying of the finished product in a third plane which is not parallel in relation to the second plane,
- wherein deflecting of the waste product from the first plane into the second plane is performed by punctiform application of force on the waste product at at least one stationary application point, and the waste product, on account of its movement in the conveying direction, is conveyed along an application track which is parallel with the conveying direction, past the application point, wherein the application of force on the waste product is terminated before the application track intersects a punching line of an odd order, and the application of force is renewed once the application track has intersected a punching line of an even order.
Dependencies are inferred from the claim text.