Deskewing device for corrugated cardboard manufacturing system
First Claim
1. A deskewing device for a moving web of material (2), especially a sheet of paper in a paper processing machine, such as, e.g., a corrugating machine, comprising a) a web of material (2) to be transported along a desired direction of conveyance (3) and transported along an actual direction of conveyance (46);
- b) at least one processing unit (4, 5, 6, 7, 8) for processing the web of material (2) wherein the at least one processing unit (4, 5, 6, 7, 8) incorporates at least one processing tool (11, 24, 25, 26, 27, 35), i) which is movable crosswise to the desired direction of conveyance (3) by means of an actuating drive (30), ii) which can be brought into engagement with the web of material (2), and iii) which is disposed at an actual transverse position yISTw and at a longitudinal tool position xw;
c) a skew measuring device for determining the actual direction of conveyance (46) of the web of material (2), wherein the skew measuring device incorporates i) at least one first position sensor (40, 40′
;
12) disposed at a first longitudinal the web of material (2), and ii) at least one second position sensor (40;
40′
;
40″
) disposed at a second longitudinal position xs2 to determine a second transverse position ys2 of the web of material (2), and d) a control unit (43), i) which is connected in a data-transferring manner to the at least one first position sensor (40;
40′
;
12), the at least one second position sensor (40;
40′
;
40″
), and the at least one actuating drive (30), and ii) which is designed in such a way that its actual direction of conveyance (46) is determined from the first transverse position ys1 and second transverse position ys2 of the web of material (2), that the desired transverse position ySOLLw of the at least one processing tool (11, 24, 25, 26, 27, 35) is determined from that actual direction of conveyance (46), and the at least one actuating drive (12, 30) for shifting the corresponding processing tool (11, 24, 25, 26, 27, 35) into the desired transverse position ySOLLw is actuated.
1 Assignment
0 Petitions
Accused Products
Abstract
A deskewing device for a moving web of material in a corrugated cardboard manufacturing system incorporates a plurality of successive processing units that are equipped with processing tools, which are movable crosswise to the direction of conveyance of the web of material. A skew measuring device is provided to determine the skew of the web of material. It has a first position sensor, at least one second position sensor, which determine the transverse position of the web of material at predetermined longitudinal positions. A control unit is used to calculate from the data of the position sensors the skew of the web of material and the transverse position of the processing tools is corrected accordingly.
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Citations
10 Claims
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1. A deskewing device for a moving web of material (2), especially a sheet of paper in a paper processing machine, such as, e.g., a corrugating machine, comprising
a) a web of material (2) to be transported along a desired direction of conveyance (3) and transported along an actual direction of conveyance (46); -
b) at least one processing unit (4, 5, 6, 7, 8) for processing the web of material (2) wherein the at least one processing unit (4, 5, 6, 7, 8) incorporates at least one processing tool (11, 24, 25, 26, 27, 35), i) which is movable crosswise to the desired direction of conveyance (3) by means of an actuating drive (30), ii) which can be brought into engagement with the web of material (2), and iii) which is disposed at an actual transverse position yISTw and at a longitudinal tool position xw;
c) a skew measuring device for determining the actual direction of conveyance (46) of the web of material (2), wherein the skew measuring device incorporates i) at least one first position sensor (40, 40′
;
12) disposed at a first longitudinal the web of material (2), andii) at least one second position sensor (40;
40′
;
40″
) disposed at a second longitudinal position xs2 to determine a second transverse position ys2 of the web of material (2), andd) a control unit (43), i) which is connected in a data-transferring manner to the at least one first position sensor (40;
40′
;
12), the at least one second position sensor (40;
40′
;
40″
), and the at least one actuating drive (30), andii) which is designed in such a way that its actual direction of conveyance (46) is determined from the first transverse position ys1 and second transverse position ys2 of the web of material (2), that the desired transverse position ySOLLw of the at least one processing tool (11, 24, 25, 26, 27, 35) is determined from that actual direction of conveyance (46), and the at least one actuating drive (12, 30) for shifting the corresponding processing tool (11, 24, 25, 26, 27, 35) into the desired transverse position ySOLLw is actuated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification