FOIL CUTTER AND SOLID CUTTER ROLL
A foil cutter for use on the surface area of a carrier roller of a rotary punch has a base plate with a bottom and a top, and at least one blade arranged on the top of the base plate. The top of the base plate has at least one region bordering on the at least one blade and partially or completely surrounded by the at least one blade, in which at least one foil cutter perforation is present through which at least a part of punched flat material can be drawn by suction to be held in the region and be further transported by the carrier roller. The foil cutter has at least one elevation arranged on the top of the base plate in the at least one region bordering on the at least one blade and partially or completely surrounded by the at least one blades.
1 . A foil cutter for use on the surface area of a carrier roller of a rotary punch comprises:
a base plate with a bottom and a top; and
at least one blade arranged on the top of the base plate,
wherein the top of the base plate comprises at least one region bordering on the at least one blade and partially or completely surrounded by the at least one blade, in which at least one foil cutter perforation is present through which at least a part of punched flat material can be drawn by suction to be held in the region and be further transported by the carrier roller,
wherein the foil cutter comprises at least one elevation arranged on the top of the base plate in the at least one region bordering on the at least one blade and partially or completely surrounded by the at least one blade, and
wherein the elevation is arranged, constructed and connected to the foil cutter to prevent a clamping of the part of the punched flat material or of partial areas of the punched flat material.
2 . The foil cutter according to claim 1 , wherein the elevation is designed as a web, plateau, pin, blade, or as a bead.
3 . The foil cutter according to claim 1 , wherein the elevation comprises at least one perforation as a suction- or blowing air perforation.
4 . The foil cutter according to claim 1 , wherein the elevation, viewed from a top view of the foil cutter, has a direct connection with at least one cutting contour section of the at least one blade.
5 . The foil cutter according to claim 1 , wherein the elevation, viewed from a top view of the foil cutter, is placed between or adjacent to cutting contour sections of the one or more blades without being directly connected thereto.
6 . The foil cutter according to claim 1 ,
wherein the height h of the elevation is less than the cutting height H or equal to the cutting height H, and
wherein the difference in height Δ h is 0% to 100% of the cutting height H.
7 . The foil cutter according to claim 6 ,
wherein the height h of the elevation is less than the cutting height H, and
wherein the difference in height Δ h is 10% to 40% of the cutting height H.
8 . The foil cutter according to claim 1 , wherein the surface of the region completely surrounded by the at least one blade is less than or equal to 150 mm 2 .
9 . A solid cutter roller for a rotary punch, comprising:
at least one blade arranged on a circumferential roller surface
wherein the circumferential roller surface has at least one region bordering on blades and partially or completely surrounded by the blades, in which region suction openings for drawing in at least a part of the punched flat material are located to be drawn in to be held in the region and be further transported by the solid cutter roller,
wherein the solid cutter roller comprises at least one elevation arranged on the circumferential roller surface in the at least one region bordering on the blades and partially or completely surrounded by the blades, and
wherein the elevation is arranged, constructed and connected to the cutter roller to prevent a clamping of the part of the punched flat material or of partial areas of the punched flat material.
10 . The solid cutter roller according to claim 9 , wherein the cutter roller is a roller with a suction- and blowing function.
11 . The solid cutter roller according to claim 9 , wherein the elevation is designed as a web, plateau, pin, blade or as a bead.
12 . The solid cutter roller according to claim 9 , wherein the elevation comprises at least one perforation as a suction- or blowing air perforation.
13 . The solid cutter roller according to claim 9 , wherein the elevation, viewed from a top view of the roller surface shown unwound and of the elements arranged thereon, has a direct connection with at least one cutting contour section of the blades.
14 . The solid cutter roller according to claim 9 , wherein the elevation, viewed from a top view of the roller surface shown unwound and of the elements arranged thereon, is placed between or adjacent to cutting contour sections of one or more of the blades without being directly connected thereto.
15 . The solid cutter roller according to claim 9 , wherein the height h of the elevation is 30% to 100% of the cutting height H.
16 . The solid cutter roller according to claim 15 , wherein the height h of the elevation is 60% to 90% of the cutting height H.
17 . The solid cutter roller according to claim 9 , wherein the cutting height H is maximally 3 mm.
18 . The solid cutter roller according to claim 9 , wherein the surface of the region completely surrounded by the blades is less than or equal to 150 mm 2 .