A cushioning conversion machine converts a sheet stock material into a relatively lower-density cushioning dunnage product. An exemplary sheet stock material includes two sheets that each overlap a common side of another sheet and are connected to respective lateral edges of the other sheet. The conversion machine includes a forming assembly having a former for shaping and randomly crumpling the sheet material, a set of adjustable guide members to guide the crumpled sheet material to a feeding assembly downstream of the forming assembly, and a severing assembly downstream of the feeding assembly that separates discrete lengths of cushioning. The severing assembly includes a window frame passage that guides the crumpled sheet material to an outlet during operation of the feeding assembly and constrains the crumpled sheet stock material during operation of the severing assembly.

A dunnage conversion machine converts a sheet stock material into a dunnage product that is relatively thicker and less dense than the stock material. The conversion machine includes a conversion assembly that draws the sheet stock material therethrough and randomly crumples at least a portion of the sheet stock material. Before severing a discrete dunnage product of a desired length from the substantially continuous length of sheet stock material, the conversion assembly temporarily advances the sheet stock material therethrough while minimizing or eliminating the random crumpling of the sheet stock material in a reduced-crumpling zone, and then cuts the sheet stock material in the reduced-cutting zone to reduce or eliminate the production of scrap shards of sheet stock material.

A dunnage handler for controlling the outfeed of dunnage from a dunnage machine is disclosed and can include a dunnage accumulator with first and second holding portions configured and associated with each other to define a dunnage accumulation space therebetween and for receiving and removably retaining the dunnage in the accumulation space from a dunnage machine and an articulation associating the first and second holding portions such that the holding portions are movable with respect to each other to vary the accumulation space to accommodate a varying amount of dunnage held therein, where a sensor and controller can be included to stop dunnage production when the accumulator is full.

An apparatus for manufacturing a packaging product from a packaging-material web may include a production device for making the packaging-material web; a drawing device for drawing the packaging-material web off from a packaging-material source; a deforming device for deforming the packaging-material web; a removal conveying device for removing the packaging-material product from the apparatus; and/or a dispensing device for dispensing the packaging-material product in an aligned manner; and using a module interface, via which at least one of the functional units, forming a structural unit, can be connected in a releasable manner to an adjacent functional unit upwards and/or downwards in the conveying direction and/or changed over therewith.

A dunnage conversion machine (36) converts a sheet stock material into a dunnage product that is relatively thicker and less dense than the stock material, but is relatively thin and sufficiently flexible to function as a protective wrap. The conversion machine includes a feed mechanism (40) that advances a sheet stock material therethrough and a connecting mechanism (42) downstream of the feed mechanism. The connecting mechanism retards the passage of the sheet stock material therethrough by feeding the stock material therethrough at a slower rate than the feed mechanism feeds the stock material to the connecting mechanism. This causes the stock material to randomly crumple in a longitudinal space between the feed mechanism and the connecting mechanism. The connecting mechanism connects multiple overlapping layers of sheet stock material together as they pass therethrough, including connecting at least one crumpled sheet to one side of one other sheet.

The invention relates to a device for providing cushioning material for packaging purposes, comprising a converting unit for turning over at least one lateral edge of a web-type starting material in the direction of a center of the starting material, creating an intermediate product, and a crumpling mechanism for crumpling the intermediate product into the cushioning material. According to the invention, the housing has a first coupling portion, which is complementary to a corresponding second coupling portion of the converting unit, and the converting unit is one of a set of at least two converting units, wherein the converting units of a set all have the same second coupling portion, and wherein the converting units of a set are designed to convert different starting materials.

A device for machine-making a dunnage product from a single- or multi-ply continuous paper web may include a delivery conveyor configured to draw the paper web into the device in a conveying direction; a cutter configured to separate the dunnage product from a three-dimensional strand of dunnage material formed from the paper web within the device; and a removal conveyor positioned after the cutter in the conveying direction and configured to remove the separated dunnage product from the cutter.

A machine for pulling paper off of a roll and crumpling the paper increasing the surface area and bulk of the compressible crumpled paper. The crumpled paper is used as packing material, cushioning packaged parts and filling package voids.

A dunnage conversion system for expanding an unexpanded slit sheet stock material to form an expanded dunnage product. The dunnage conversion system includes a converging chute to inwardly gather laterally-extending edges of sheet stock material towards one another, causing random crumpling of the sheet stock material to form a modified ply. The conversion system also includes feed wheels that advance the modified ply through the converging chute and pinch rollers that cooperate with the feed wheels to expand the modified ply traveling between the feed wheels and the pinch rollers to form a dunnage product. The expanded dunnage product is expanded both in a longitudinal feed direction and in thickness as compared to the unexpanded slit sheet stock material, and thus is a three-dimensional product having increased volume and lower density per unit of length as compared to the unexpanded slit sheet stock material.

An embossed wrapping material for protectively cushioning an article comprises a plurality of embossed protrusions, wherein the plurality of embossed protrusions comprises first protrusions, extending in a first direction and second protrusions extending in a second direction, the second direction being opposite to the first direction. At least regionally the embossed wrapping material comprises a plurality of first creases created during or prior to embossing the protrusions.