Corrugating machine and method of producing corrugated cardboard having a marking device with a solid coloring agent
First Claim
1. A corrugating machine for producing corrugated cardboard, comprisinga. at least three splicing devices (3, 4, 74) for providing at least three continuous webs of material (13, 21, 65);
- b. at least one corrugating device (5) for producing at least one corrugated web (23) from at least one of the webs of material (21);
c. at least one first production device (6) for joining the at least one corrugated web (23) to at least another web of material (13) to form at least one web of single-faced corrugated cardboard (2);
d. at least one second production device (61) for joining the at least one web of single-faced corrugated cardboard (2) to at least another web of material (65) to form at least one web of double-faced corrugated cardboard (66);
e. at least one storage device (34) for temporarily storing the at least one web of single-faced corrugated cardboard (2), the storage device (34) being disposed between the production devices (6, 61);
f. at least one marking device (39) for applying at least one color mark (40) to at least one of the webs (2, 13, 21, 23), the marking device (39) being disposed upstream of the at least one storage device (34) when seen in a transport direction (35), wherein the at least one marking device (39) is designed such that a coloring agent (41) is applicable to create a color mark (40) by rubbing off on at least one of the webs (2, 13, 21, 23), the coloring agent (41) being present in solid form, wherein the at least one marking device (39) comprises a piston-cylinder unit comprising a cylinder (42) and a piston (44) that is displaceable therein along a direction of displacement (43), said piston having a holder with a recess against which said coloring agent abuts, and the holder being located inside the cylinder, and wherein the at least one marking device (39) is disposed relative to one of the webs of material (21) such that the direction of displacement (43) is substantially perpendicular to a plane spanned by said web of material (21) in the vicinity of the at least one marking device;
g. at least one detection device (60) for detecting the at least one color mark (40), the detection device (60) being disposed downstream of the at least one storage device (34) when seen in the transport direction (35);
h. at least one electronic control device (86) for determining a web length (LB) of the at least one temporarily stored web of corrugated cardboard (2) by means of the at least one applied and detected color mark (40);
i. at least one cross-cutting device (82) for cutting the at least one web of double-faced corrugated cardboard (66) in dependence of the determined web length (LB); and
j. a support component (55) comprising a roller mounted for rotation disposed relative to the at least one of the webs of material (21) opposite to the marking device.
1 Assignment
0 Petitions
Accused Products
Abstract
In a corrugating machine and a method of producing corrugated cardboard, provision is made for a marking device by means of which a color mark is applied by rubbing off a solid coloring agent, the color mark being detected by means of a detection device in order to easily and precisely mark and cut out joining points. The applied and detected color mark enables a web length of a web of single-faced corrugated cardboard in a storage device to be determined, thus allowing an electronic control device to operate a cross-cutting device in an easy and precise manner.
16 Citations
9 Claims
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1. A corrugating machine for producing corrugated cardboard, comprising
a. at least three splicing devices (3, 4, 74) for providing at least three continuous webs of material (13, 21, 65); -
b. at least one corrugating device (5) for producing at least one corrugated web (23) from at least one of the webs of material (21); c. at least one first production device (6) for joining the at least one corrugated web (23) to at least another web of material (13) to form at least one web of single-faced corrugated cardboard (2); d. at least one second production device (61) for joining the at least one web of single-faced corrugated cardboard (2) to at least another web of material (65) to form at least one web of double-faced corrugated cardboard (66); e. at least one storage device (34) for temporarily storing the at least one web of single-faced corrugated cardboard (2), the storage device (34) being disposed between the production devices (6, 61); f. at least one marking device (39) for applying at least one color mark (40) to at least one of the webs (2, 13, 21, 23), the marking device (39) being disposed upstream of the at least one storage device (34) when seen in a transport direction (35), wherein the at least one marking device (39) is designed such that a coloring agent (41) is applicable to create a color mark (40) by rubbing off on at least one of the webs (2, 13, 21, 23), the coloring agent (41) being present in solid form, wherein the at least one marking device (39) comprises a piston-cylinder unit comprising a cylinder (42) and a piston (44) that is displaceable therein along a direction of displacement (43), said piston having a holder with a recess against which said coloring agent abuts, and the holder being located inside the cylinder, and wherein the at least one marking device (39) is disposed relative to one of the webs of material (21) such that the direction of displacement (43) is substantially perpendicular to a plane spanned by said web of material (21) in the vicinity of the at least one marking device; g. at least one detection device (60) for detecting the at least one color mark (40), the detection device (60) being disposed downstream of the at least one storage device (34) when seen in the transport direction (35); h. at least one electronic control device (86) for determining a web length (LB) of the at least one temporarily stored web of corrugated cardboard (2) by means of the at least one applied and detected color mark (40); i. at least one cross-cutting device (82) for cutting the at least one web of double-faced corrugated cardboard (66) in dependence of the determined web length (LB); and j. a support component (55) comprising a roller mounted for rotation disposed relative to the at least one of the webs of material (21) opposite to the marking device. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of producing corrugated cardboard comprising the steps:
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a. providing at least three continuous webs of material (13, 21, 65) by means of at least three splicing devices (3, 4, 74); b. producing at least one corrugated web (23) from at least one of the webs of material (21) by means of at least one corrugating device (5); c. joining the at least one corrugated web (23) to at least another web of material (13) to form at least one web of single-faced corrugated cardboard (2) by means of at least one first production device (6); d. applying at least one color mark (40) to at least one of the webs (2, 12, 21, 23) by means of at least one marking device (39), the at least one color marking (40) being applied by rubbing off a coloring agent (41) which is present in solid form; e. temporarily storing the at least one marked web of corrugated cardboard (2) by means of at least one storage device (34); f. detecting the at least one color mark (40) at least after temporary storage by means of at least one detection device (60); g. determining a web length (LB) of the at least one temporarily stored web of corrugated cardboard (2) by means of the at least one applied and detected color mark (40) in at least one electronic control device (86); h. joining the at least one web of single-faced corrugated cardboard (2) to at least another web of material (65) to form at least one web of double-faced corrugated cardboard (66) by means of at least one second production device (61); i. cutting the at least one web of double-faced corrugated cardboard (66) depending on the determined web length (LB) by means of at least one cross-cutting device (82); j. wherein the at least one marking device (39) is a piston-cylinder unit comprising a cylinder (42) and a piston (44) such that displacing the piston (44) in the cylinder (42) is enabled along a direction of displacement (43), said piston having a holder with a recess against which said coloring agent abuts, and the holder being located inside the cylinder; and k. wherein the at least one marking device (39) is disposed relative to one of the webs of material (21) such that the direction of displacement (43) is substantially perpendicular to a plane spanned by said web of material (21) in the vicinity of the at least one marking device (39); and l. wherein a support component (55) comprising a roller mounted for rotation disposed relative to the at least one of the webs of material (21) opposite to the marking device. - View Dependent Claims (8, 9)
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Specification