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US 10,016,796 B2Granted
Method for roll-forming
AssigneeOrtic 3D AB
InventorLars Ingvarsson
Life of this patent
Estimating the term…
Abstract
A method is provided for roll-forming a sheet metal strip (35) by driving the sheet metal strip through a row of forming stations (17, 18) having pairs of rollers (19, 20; 29, 30) directed towards each other and both holding the sheet metal strip therebetween and forming the sheet metal strip over roller edges. In every second forming station (12), two angles (41, 42) are gradually formed and in every second forming station two other angles (43, 44) are gradually formed.
Claims9
A method for roll-forming a sheet metal strip (35) comprising
- providing a row of forming stations comprising a set of first alternating forming stations and a set of second alternating forming stations arranged in a zig-zag arrangement along a feeding direction such that the first alternating forming stations and the second alternating forming stations are alternately arranged in the feeding direction with the first alternating forming stations arranged on one lateral side of the sheet metal strip and the second alternating forming stations arranged on an opposite lateral side of the sheet metal strip,
- driving the sheet metal strip through the row of forming stations (17, 18) along the feeding direction, each of the forming stations having pairs of rollers (19, 20;
- 29, 30) directed towards each other and holding the sheet metal strip therebetween and forming the sheet metal strip over roller edges of the pairs of rollers,
- gradually forming two angles (41, 42) only on the one lateral side of the sheet metal strip in every first alternating forming station (12) and gradually forming two other angles (43, 44) only on the opposite lateral side of the sheet metal strip in every second alternating forming station.
1 more element
A method for roll-forming a sheet metal strip (35) comprising
- providing a roll-forming machine comprising a row of roll forming stations (17, 18), the roll forming stations comprising a set of first alternating forming stations and a set of second alternating forming stations alternately arranged along a feeding direction, each forming station having pairs of rollers (19, 20;
- 29, 30) directed towards each other, wherein the roll-forming machine further comprises a stand (11), frames (14) mounted on the stand (11), an intermediate piece (16) pivotally mounted on each frame, two carriers of respective pairs of the pairs of rollers of each forming station mounted on each intermediate piece, each carrier of the pairs of rollers comprising two axle pins (21, 22;
- 31, 32) directed towards each other for carrying each forming roller (19, 20;
- 29, 30) of the pairs of forming rollers,
- laterally-displacing the frames (14) mounted on the stand (11),
- pivoting the intermediate piece (16) pivotally mounted on each frame (14) around a vertical axis (I),
- separately laterally displacing the carriers (17, 18) mounted on each intermediate piece (16),
- driving the sheet metal strip through the row of forming stations (17, 18) along the feeding direction as the pairs of rollers (19, 20;
- 29, 30) hold the sheet metal strip therebetween and form the sheet metal strip over roller edges of the pairs of rollers,
- gradually forming a first set of two angles (41, 42) on one lateral side of the sheet metal strip in every first alternating forming station (12) and gradually forming a second set of two angles (43, 44) on an opposite lateral side of the sheet metal strip in every second alternating forming station.
7 more elements
Dependencies are inferred from the claim text.