Method for splicing material webs and splicing device
First Claim
Patent Images
1. Method for splicing material webs, comprising the following steps:
- a. unrolling of a first material web from a first material roll;
b. reproducing of a first cut edge by cutting a second material web at least along a first cutting direction and along a second cutting direction, the cutting directions enclosing an angle α
such that 0°
<
α
<
180°
applies;
c. producing of a second cut edge complementary to the first cut edge by cutting the first material web at least along the first cutting direction and along the second cutting direction;
d. joining of the first material web with the second material web in the area of the cut edges to form an endless material web, the first material web and the second material web being arranged relative to each other essentially overlap-free,i. wherein the first material web and the second material web engage into each other in a joining area along a transportation direction of the material webs andii. wherein the cut edges each form several cut edge projections and several cut edge recesses; and
e. unrolling of the second material web from a second material roll.
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Accused Products
Abstract
In a method for splicing material webs and an associated splicing device it is envisaged, for producing an improved joint, to join the material webs in the area of cut edges essentially overlap-free to form an endless material web, the cut edges being produced by cutting the material webs at least along a first cutting direction and along a second cutting direction, and the cutting directions enclosing an angle α such that 0°<α<180° applies.
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Citations
33 Claims
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1. Method for splicing material webs, comprising the following steps:
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a. unrolling of a first material web from a first material roll; b. reproducing of a first cut edge by cutting a second material web at least along a first cutting direction and along a second cutting direction, the cutting directions enclosing an angle α
such that 0°
<
α
<
180°
applies;c. producing of a second cut edge complementary to the first cut edge by cutting the first material web at least along the first cutting direction and along the second cutting direction; d. joining of the first material web with the second material web in the area of the cut edges to form an endless material web, the first material web and the second material web being arranged relative to each other essentially overlap-free, i. wherein the first material web and the second material web engage into each other in a joining area along a transportation direction of the material webs and ii. wherein the cut edges each form several cut edge projections and several cut edge recesses; and e. unrolling of the second material web from a second material roll. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Splicing device for the splicing of material webs, having
a. a first unrolling device for unrolling a first material web from first material roll, b. a second unrolling device for unrolling a second material web from a second material roll, and c. at least one cutting and joining device for the cutting and joining of the material webs to form an endless material web, wherein i. the cutting and joining device exhibits several first cutting sections running along a first cutting direction, ii. the cutting and joining device exhibits several second cutting sections running along a second cutting direction, iii. the cutting directions enclose an angle α - such that 0°
≦
α
≦
180°
applies, andiv. the cutting sections are arranged such that a first cut edge is producible by cutting a second material web and a second cut edge complementary to the first cut edge is producible by cutting a first material web, the cut edges each form several cut edge projections and several cut edge recesses such that the first material web and the second material web engage into each other in a joining area along a transportation direction of the material webs. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
- such that 0°
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22. Method for splicing material webs, comprising the following steps:
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a. unrolling of a first material web from a first material roll; b. reproducing of a first cut edge by cutting a second material web at least along a first cutting direction and along a second cutting direction, the cutting directions enclosing an angle α
such that 0°
<
α
<
180°
applies;c. producing of a second cut edge complementary to the first cut edge by cutting the first material web at least along the first cutting direction and along the second cutting direction; d. joining of the first material web with the second material web in the area of the cut edges to form an endless material web, the first material web and the second material web being arranged relative to each other essentially overlap-free, i. wherein the first material web and the second material web engage into each other in a joining area along a transportation direction of the material webs, ii. wherein the cut edges each form several cut edge projections and several cut edge recesses and iii. wherein the cut edge projections and the cut edge recesses have a wave-like shape; and e. unrolling of the second material web from a second material roll. - View Dependent Claims (23, 24, 25, 26, 27)
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28. Method for splicing material webs, comprising the following steps:
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a. unrolling of a first material web from a first material roll; b. reproducing of a first cut edge by cutting a second material web at least along a first cutting direction and along a second cutting direction, the cutting directions enclosing an angle α
such that 0°
<
α
<
180°
applies;c. producing of a second cut edge complementary to the first cut edge by cutting the first material web at least along the first cutting direction and along the second cutting direction; d. joining of the first material web with the second material web in the area of the cut edges to form an endless material web, the first material web and the second material web being arranged relative to each other essentially overlap-free, i. wherein the first material web and the second material web engage into each other in a joining area along a transportation direction of the material webs, ii. wherein the cut edges each form several cut edge projections and several cut edge recesses and iii. wherein the cut edge projections and the cut edge recesses have a rectangular shape; and e. unrolling of the second material web from a second material roll. - View Dependent Claims (29, 30, 31, 32, 33)
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Specification