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US 10,766,220 B2Granted
Method and device for producing a cushioning product and cushioning product
AssigneeStoropack Hans Reichenecker GmbH
InventorsPaul Deis, Jean-Marc Slovencik
Life of this patent
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Abstract
The invention relates to a method for producing a cushioning product (88), comprising the following steps: providing a flat, longitudinal, two- or multilayered paper strip (10), wherein the individual layers (12, 14) of the paper strip (10) are connected to one another in at least some sections in a middle area (18) extending in the longitudinal direction, and wherein the individual layers (12, 14) of the paper strip (10) comprise marginal areas (20, 21, 22, 23) which are not connected to one another, opening adjacent marginal areas (20, 21, 22, 23) to form a paper strip (10) having a star-shaped cross section, and crumpling the paper strip (10) along the middle area (18).
Claims10
A device for producing a cushioning product comprising:
- an inlet area for receiving a longitudinal, two-layered paper strip, wherein individual layers of the paper strip are closely adjacent to one other, wherein the individual layers of the paper strip are connected to one another in at least some sections in a middle area of the paper strip extending in a longitudinal direction, and wherein the individual layers of the paper strip comprise marginal areas which, while closely adjacent to one another, are not connected to one other,
- at least one opening core configured to spread the individual layers apart away from one another along the marginal areas while permitting the individual layers to remain connected to one another in the middle area so that the paper strip has a star-shaped cross-section, the star-shaped cross-section defined as having protruding rays extending from the middle area of the paper strip, wherein the number of rays is based on the number of layers in the paper strip,
- an advance mechanism configured to advance the paper strip and to move the marginal areas over the at least one opening core, and
- a crumpling mechanism configured to crumple the paper strip along the middle area,
- wherein the at least one opening core comprises at least two mutually facing opening cores, which are spaced apart from each other in a transverse direction, so that the middle area of the paper strip can be moved in the longitudinal direction between the two mutually facing opening cores,
- wherein the two mutually facing opening cores comprise wedge sections, each wedge section, in a cross-section along the longitudinal direction, having a thinner end and a thicker end, the thinner ends of the wedge sections being directed toward the inlet area.
3 more elements
A device for producing a cushioning product comprising:
- an inlet area for receiving a longitudinal, two-layered paper strip, wherein individual layers of the paper strip are closely adjacent to one other, wherein the individual layers of the paper strip are connected to one another in at least some sections in a middle area of the paper strip extending in a longitudinal direction, and wherein the individual layers of the paper strip comprise marginal areas which, while closely adjacent to one another, are not connected to one other,
- at least one opening core configured to spread the individual layers apart away from one another along the marginal areas while permitting the individual layers to remain connected to one another in the middle area so that the paper strip has a star-shaped cross-section, the star-shaped cross-section defined as having protruding rays extending from the middle area of the paper strip, wherein the number of rays is based on the number of layers in the paper strip,
- an advance mechanism configured to advance the paper strip and to move the marginal areas over the at least one opening core, and
- a crumpling mechanism configured to crumple the paper strip along the middle area,
- wherein the at least one opening core comprises at least two mutually facing opening cores, which are spaced apart from each other in a transverse direction, so that the middle area of the paper strip can be moved in the longitudinal direction between the two mutually facing opening cores,
- further comprising separating elements, which engage between the individual layers in the marginal areas, arranged upstream of the two mutually facing opening cores.
3 more elements
A device for producing a cushioning product comprising:
- a longitudinal, two-layered paper strip, wherein individual layers of the paper strip are closely adjacent to one other, wherein the individual layers of the paper strip are connected to one another in at least some sections in a middle area of the paper strip extending in a longitudinal direction, and wherein the individual layers of the paper strip comprise marginal areas which, while closely adjacent to one another, are not connected to one other,
- an inlet area for receiving the paper strip,
- means for spreading the individual layers of the paper strip apart away from one another along the marginal areas while permitting the individual layers to remain connected to one another in the middle area so that the paper strip has a star-shaped cross:
- section, the star-shaped cross-section defined as having protruding rays extending from the middle area of the paper strip, wherein the number of rays is based on the number of layers in the paper strip,
- means for advancing the paper strip and for moving the marginal areas over the means for separating the individual layers, and
- means for crumpling the paper strip along the middle area.
3 more elements
Dependencies are inferred from the claim text.