Compact apparatus and system for creating and dispensing cushioning dunnage

Information

  • Patent Grant
  • 6673001
  • Patent Number
    6,673,001
  • Date Filed
    Thursday, August 1, 2002
    22 years ago
  • Date Issued
    Tuesday, January 6, 2004
    20 years ago
  • Inventors
  • Examiners
    • Sipos; John
    • Huynh; Louis
    Agents
    • Antonelli, Terry, Stout & Kraus, LLP
Abstract
A system for creating and dispensing cushioning dunnage is small and permits flexible installation configuration options for a single or multiple packing stations. A compact apparatus of the system is capable of being pivotally mounted as a unit on a stand and includes a motor and a material feeding arrangement driven by the motor for pulling material from a supply roll of the material supported on a stand of the system, and feeding it through the apparatus. A plurality of material shaping members upstream of the feeding arrangement shape the material in the apparatus to convert it into a continuous strip of cushioning product. The feeding arrangement in one embodiment includes cooperating feed rollers, at least one of which is a rotary cutting die having a plurality of cutting blades on its surface for cutting slits in the material at spaced locations along the length of the material to allow an operator to manually rip a desired length of cushioning product from the material being dispensed from the apparatus.
Description




TECHNICAL FIELD




The invention relates to an apparatus and a system employing the same for creating and dispensing material for use as void fill and cushioning dunnage in the packaging industry when shipping products in boxes, for example.




BACKGROUND




Cushioning dunnage is used as a protective packaging material when shipping an item in a container. The dunnage fills any voids and/or cushions the item in the container during shipping. Typical materials for forming cushioning dunnage include paper and plastic. Relatively complicated machines and methods are known for producing cushioning dunnage comprising resilient pillow-like strips from rolls of stock material. One such known machine is disclosed in U.S. Pat. No. 5,785,639. The known machines are disadvantageous in that they are suitable primarily for larger-scale productions and they are relatively expensive. There has long been a need in the packaging industry for a small and inexpensive device that creates and dispenses paper or other material for use as void fill and cushioning when shipping products in boxes or other containers.




SUMMARY




The present invention addresses this need in providing a compact apparatus and a system employing the apparatus for creating and dispensing cushioning dunnage. The apparatus and system are capable of meeting the needs of both ends of the customer spectrum. Namely, the compact apparatus and system of the invention are affordable and practical for a customer whose packing needs can be met with a single unit that does not take up a lot of space. The apparatus and system can also serve the needs of customers with high-speed and high-volume production lines having multiple, stand alone packing stations and/or centralized packing stations.




A compact apparatus according to the invention for creating and dispensing material for use as void fill and cushioning dunnage is small enough that it is capable of being mounted as a unit on a stand. The compact apparatus or head comprises a motor and a material feeding arrangement driven by the motor for pulling material from a supply of material and feeding it through the apparatus where it is converted into a cushioning product. A plurality of material shaping members upstream of the material feeding arrangement in the compact apparatus shape the material to convert it into a continuous strip of cushioning product as the material is fed through the apparatus. In one embodiment, a perforator driven by the motor perforates the material at spaced locations along the length of the material as the material is fed through the apparatus to allow an operator to rip from the apparatus a desired length of cushioning product being dispensed by the apparatus. According to a second embodiment, in the compact apparatus operating feed rollers, at least one of which is a rotary cutting die, are used to feed and slit the material for creating and dispensing void fill and cushioning dunnage.




A system of the invention for creating and dispensing material for use as void fill and cushioning dunnage includes the aforementioned compact apparatus and a stand on which the compact apparatus is mounted. According to an example embodiment, the compact apparatus is pivotally mounted on the stand to facilitate material loading. In one form of the invention, the stand is a material cart with wheels, the material cart including a support for rotatably supporting a roll of material which is to be pulled from the roll and supplied to the compact apparatus. An automatic roll tensioner for tensioning material being pulled from the roll maintains tension on the material even when pulling suddenly stops. The cart can also include a work surface for an operator handling cushioning product dispensed by the compact apparatus. As a further feature of the invention, an overhead delivery system is provided for delivering rolls of material to the roll support of a system where the roll support is elevated above an adjacent work surface for an operator handling cushioning product dispensed by the compact apparatus.




These and other features and advantages of the present invention will become more apparent from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, several example embodiments in accordance with the present invention.











BRIEF DESCRIPTION OF DRAWINGS




The following represents brief descriptions of the drawings, wherein:





FIG. 1

is a front side view of a compact apparatus according to an example embodiment of the invention for creating and dispensing material for use as void fill and cushioning dunnage.





FIG. 2

is a left side view of the compact apparatus of FIG.


1


.





FIG. 3

is a right side view of the compact apparatus of FIG.


1


.





FIG. 4

is a schematic drawing of functional components of the compact apparatus of

FIGS. 1-3

more clearly showing the components.





FIG. 5

is a schematic drawing like

FIG. 4

showing the apparatus functional components in relation to a paper material being pulled into the apparatus from a supply roll of the paper and fed through the apparatus while being converted into a cushioning product.





FIG. 6

is a right side view of a first example embodiment of a system of the invention which includes the compact apparatus of

FIGS. 1-5

mounted on a floor stand located behind a work bench with a material cart with automatic roll tensioner supporting a material roll supplying paper to the apparatus.





FIG. 7A

is a view similar to

FIG. 5

but showing more details of the pillow-like product formed by the apparatus with spaced perforations along the length of the product enabling an operator to tear off in a predictable way a desired length of the material from the continuous strip dispensed from the apparatus.





FIG. 7B

is a perspective view from above and to one side of a paper pillow which has been ripped from the free end of the continuous cushioning product shown in FIG.


7


A.





FIG. 7C

is an enlarged view of the portion of the cushioning product within the circle D in

FIG. 7A

, illustrating a perforated area along one edge of the cushioning product.





FIG. 8

is a right side view of a second example embodiment of a system according to the invention wherein the compact apparatus is mounted on a manifesting station above a work surface thereof.





FIG. 9

is a right side view of a third example embodiment of the system of the invention wherein the compact apparatus of the invention is pivotally mounted on a material cart and positioned beneath a work surface of a manifesting station.





FIG. 10

is a right side view of a fourth example embodiment of the system of the invention having a conveyor providing a work surface in front of a floor stand carrying the compact apparatus of the invention.





FIG. 11

is a right side view of a fifth example embodiment wherein a material cart of the system includes a work surface and has the compact apparatus pivotally mounted to the cart.





FIG. 12

is a right side view showing a sixth example embodiment wherein the entire material cart with compact apparatus mounted thereon is located beneath a conveyor of the system.





FIG. 13

is a right side view of another example embodiment of the system wherein the material cart is located behind a conveyor and supports the compact apparatus in a position beneath the conveyor.





FIG. 14

is a right side view of a further example embodiment of the system depicting an elevated roll delivery arrangement thereof for supplying rolls of material to be used for creating a cushioning product with the system.





FIG. 15

is a variation of the system according to

FIG. 14

schematically showing the use of a roll tensioner as part of the roll support.





FIG. 16A

is a top view of an additional system of the invention wherein an overhead roll delivery arrangement supplies material rolls to a plurality of individual work stations, each having a compact apparatus of the invention.





FIG. 16B

is a front side view of one work station of the system of FIG.


16


A.





FIG. 17

is a perspective view from the front right and somewhat above a rotary die cut assembly of another embodiment of a compact apparatus of the invention for creating and dispensing material for use as void fill and cushioning dunnage.





FIG. 18

is a perspective view from the front right of the rotary die cut assembly of

FIG. 17

removably installed as a unit in a cavity of a housing of the compact apparatus defining input and output chutes for material fed through the apparatus, the apparatus otherwise being like that shown in

FIGS. 1-5

, and useable in the systems shown in FIGS.


6


and


8


-


16


B.





FIG. 19A

is a top view of the right side of a feeding roller of the die cut assembly of

FIGS. 17 and 18

, the feeding roller being a rotary cutting die having a plurality of cutting blades on its surface.





FIG. 19B

is a front side view of the feeding roller which also serves as a rotary cutting die as seen from below the roller in FIG.


19


A.





FIG. 19C

is a partial end view of the feeding roller/rotary cutting die as seen from the right end of the roller in FIG.


19


B.





FIG. 20A

is a schematic representation in perspective of the feed rollers of the apparatus of

FIGS. 17-19C

showing the continuous strip of material, shaped with its width reduced to form longitudinally extending convolutions across the width of the material with angled slits formed therein by the rotary cutting die of the material feeding arrangement, the material being folded on itself downstream of the feeding roller by a hinge effect at the spaced locations of the slits along the length of the material.





FIG. 20B

is a schematic, perspective view similar to FIG.


20


A and showing in more detail the opening of the slits through random convolution of the material into an irregular honeycomb-like structure during separation of the material.





FIG. 20C

is an enlarged view of the irregular honeycomb-like structure within the circle


20


C in FIG.


20


B.





FIG. 20D

is another schematic, perspective view like

FIGS. 20A and 20B

showing a separated length of material ripped from the strip by the operator in the direction of the arrow.











DETAILED DESCRIPTION




Referring now to the drawings, a compact apparatus


1


of the invention, as shown in

FIGS. 1-6

, is for creating and dispensing material for use as a void fill and cushioning dunnage. The apparatus


1


is a relatively small, integral unit capable of being mounted on a stand, for example, floor stand


2


in FIG.


6


. The apparatus


1


comprises a motor


3


and a material feeding arrangement


4


,

FIG. 4

, driven by the motor for pulling material from a supply of material, e.g., a material roll


5


in

FIG. 6

, and feeding it through the apparatus.




The material feeding arrangement


4


comprises cooperating feed rollers


6


and


7


, see

FIG. 4

, between which the material


8


, paper in the example embodiment, is fed as depicted in

FIG. 5. A

plurality of material shaping members upstream of the material feeding arrangement


4


shape the material


8


into a continuous strip of cushioning product as the material is fed through the apparatus


1


. The material shaping members include a convex material shaping roller


9


over which the material


8


is drawn by the feed rollers


6


and


7


. An input opening


10


for the material


8


downstream of the convex roller


9


is defined by first and second pairs of spaced, parallel rollers


11


,


12


and


13


,


14


. The second pair of rollers


13


,


14


extend in a direction transverse to that of the first pair of rollers


11


,


12


. When the material


8


is drawn over the convex roller


9


, the lateral edges of the material are directed in a first direction over the convex surface of the roller


9


. Continued movement of the material


9


through the input opening


10


directs the lateral edges of the material


8


in a second direction such that the edges are folded back on the material for forming a continuous strip of cushioning product. More particularly, as shown in

FIGS. 7A

,


7


B and


7


C, the convex roller


9


and two pairs of rollers


11


,


12


and


13


,


14


constitute a conversion assembly through which the paper from the roll


5


is pulled by the feed rollers


6


and


7


to fold and form the paper into pillow-like shapes for use as cushioning dunnage, see paper pillow


15


in FIG.


7


B.




The compact apparatus


1


further comprises a perforator


16


driven by the motor


3


for perforating paper material


8


at spaced locations


17


along the length of the material as the material is fed through the apparatus. The line of perforations


17


on each side of the material are edge cuts made by cooperating perforation gears


18


and


19


between which the material is fed. The perforation gears


18


and


19


are arranged coaxial with the feed rollers


6


and


7


on each side of the material being fed. When the pillow-like shaped material is dispensed from the compact apparatus


1


, an operator can rip from the apparatus a desired length of cushioning product, such as pillow


15


in

FIG. 7B

, because of the spaced perforations


17


in the material.




An input chute


20


and an output chute


21


of the apparatus


1


guide the material


8


on respective sides of the material feeding arrangement


4


. The input and output chutes, convex material shaping roller


9


, input rollers


11


,


12


and


13


,


14


and other components of the apparatus are mounted as a unit on the supporting frame


22


of the apparatus. In the example embodiment, the compact apparatus


1


in the form of a pivotal head which is mounted on the floor stand


2


,

FIG. 6

, for multi-directional pivoting for ease of loading paper material. Different positions for the pivotal head


1


on the floor stand


2


are shown in dashed lines in FIG.


6


. It is noted that the size of the input opening


10


delimited by the roller pairs


11


,


12


and


13


,


14


is small enough to preclude an operator's hand from being inserted through the input opening for operator safety.




A system


23


of the invention for creating and dispensing material for use as void fill and cushioning dunnage is shown in FIG.


6


. The system includes, in combination, the compact apparatus


1


and a stand


2


on which the compact apparatus is mounted. The system


23


further comprises a work bench


24


providing a work surface


25


for an operator


26


for moving pillow-like shaped material


15


from the apparatus


1


and inserting it into the box


27


containing an item to be shipped. The system


23


of

FIG. 6

further comprises a roll support


28


which rotatably supports the paper roll


5


from which the material can be unwound by being pulled by the feed rollers


6


and


7


of the compact apparatus


1


for supply to the compact apparatus. The roll support


28


in the system


23


in

FIG. 6

is in the form of a material cart


31


with wheels


32


.




The system


33


in the example embodiment of

FIG. 8

comprises a stand


34


supported on a manifesting station


35


. The system


36


in

FIG. 9

is similar to that in

FIG. 8

, except that the compact apparatus


1


is pivotally mounted beneath the work surface of the manifesting station on a lower leg


30


of the manifesting station. The system


38


in the example embodiment of

FIG. 10

employs a floor stand


2


like that in

FIG. 6

with a conveyor


39


being located in front of the compact apparatus to provide a work surface


40


. The system


41


of

FIG. 11

integrates the work surface


42


with material cart


43


. The cart


43


also serves to pivotally mount the compact apparatus


1


beneath the work surface


42


. The entire system is portable because of the wheels


44


on the cart


43


.




A system


45


in the example embodiment of

FIG. 12

employs a material cart


46


with roll tensioner


67


that pivotally supports the compact apparatus


1


beneath a conveyor


47


. The system


48


of

FIG. 13

is similar to that in

FIG. 12

, except that the material cart is located behind the conveyor


49


with only the compact apparatus


1


located beneath the conveyor.




A system


50


in

FIG. 14

includes an elevated roll support


51


for the material roll


5


with a dancing supply conveyor


52


supplying a back-up material roll


53


for delivery to the roll support


51


to replenish the paper supply as needed. The dancing supply conveyor


52


presents a delivered material roll


54


as depicted in FIG.


14


. The delivered material roll


54


is transferred to the position of the back-up material roll


53


by the pivotal transfer arms


55


and


56


shown schematically in

FIG. 14. A

variation of the system of

FIG. 14

is shown in

FIG. 15

, wherein roll support


57


includes pretensioner


58


. The roll support is mounted on the floor stand


2


and the dancing supply conveyor


52


in the system


59


of FIG.


15


.




The overhead dancing supply conveyor


52


is schematically shown in the system


60


of

FIGS. 16A and 16B

, wherein the conveyor supplies material rolls to five individual packing stations


61


through


65


. Each of the packing stations is provided with a compact apparatus


1


of the invention supported above a work surface for creating and dispensing cushioning dunnage to the operator packing items and containers at the work station. One of the stations,


61


, is shown schematically in side view in

FIG. 16B. A

taping machine is represented at


66


.




The operation of the overhead roll-delivery system in

FIGS. 14 and 15

will now be described. In a first step, paper rolls move (walk) on the dancing conveyor


52


until a roll-transfer gate, pivotal transfer arm,


55


(closed) stops the roll from moving. When the roll stops moving, the roll-dispensing pivotal transfer arm


56


pushes the roll out of tracks of the dancing conveyor. After the roll is pushed out of the dancing conveyor, the roll will stop against the roll-stop/release arm


70


, shown in FIG.


15


. As long as a roll stays against the roll-stop/release arm


70


, the roll-transfer gate


55


stays open, allowing rolls of paper to move on the dancing conveyor to the next available station. When a new roll of paper is needed for a dispensing unit, e.g., one of the stations


61


-


65


, for example, the operator uses the roll-stop/release arm


70


to release the stand-by roll so that the paper roll can fall into the auto-roll tensioning device


58


as shown in FIG.


15


. At this point, the roll is ready to be used. After a roll falls into the auto-roll tensioning device, the roll-transfer gate


55


closes.




In the example embodiments, the paper material preferably has an initial width of 24 to 34 inches. After the edges are folded by the conversion assembly of the apparatus, the width of the pillow-shaped product is reduced to 7-8 inches, for example, with the continuous strip being perforated at


17


on each side every 7 inches, for example. The apparatus and dunnage product could, of course, be dimensioned for producing other sizes of cushioning product.




In use, the operator manually feeds the paper or other material from the supply roll


5


located in the vicinity of the compact apparatus


1


by pressing a feed switch


68


on controller


69


,

FIG. 1

, until the paper extends from exit chute


21


at the front of the unit


1


. The operator presses on a foot switch, not shown, to begin dispensing paper. As paper moves through the inside of the unit


1


, the paper is folded and formed into pillow-like shapes for use as cushioning dunnage. The formed material is uniformly perforated on each side edge every 7 inches at


17


in the example embodiment. When a desired length of the cushioning product is reached, the operator releases the foot switch to stop dispensing cushioning product. The operator rips the cushioning product from the unit at a desired perforation line and places the product in the box


27


to use for void-fill or cushioning.




The compact apparatus and system of the invention is advantageously affordable and practical for customers whose packing needs can be met with a single unit that doesn't take up a lot of space. It also can also flexibly serve the needs of customers with high-speed and high-volume production lines where multiple, stand alone packing stations such as


61


-


65


and/or centralized packing stations are utilized. Raised flexible installation configuration options, which can be installed over or under work benches, and over or under conveyor lines, are shown in the several example embodiments. Multi-directional pivoting of the unit


1


on the stand/material cart is for ease of loading the paper material


8


in unit


1


. Because perforation is achieved in the paper material on-site and in real-time, pre-perforated paper need not be provided on a roll.




Another embodiment of a compact apparatus


71


of the invention is partially illustrated in

FIGS. 17-20D

. The apparatus


71


is like that in

FIGS. 1-5

, and useable in systems as in FIGS.


6


and


8


-


16


B, with the difference that instead of using perforator gears


18


and


19


as in compact apparatus


1


, the apparatus


71


comprises cooperating feed rollers


72


and


73


wherein at least one of the feed rollers is a rotary cutting die. In the example embodiment only one of the feed rollers,


72


, is a rotary cutting die having a plurality of cutting blades


74


on its surface for cutting slits


86


in material at spaced locations along the length of the material as the material is fed through the apparatus to allow an operator to rip from the apparatus a desired length of cushioning product being dispensed by the apparatus, see the length


75


ripped from the material as shown schematically in FIG.


20


D.




The feed roller


73


in the example embodiment has a smooth, annular surface so that it acts as an anvil against which the material being fed between the rollers can be cut by the blades


74


on roller


72


. The rollers are driven by motor


76


through transmission


77


under the control of controller


78


, the operation of which is like that described in reference to the embodiment of

FIGS. 1-5

and the systems of FIGS.


6


and


8


-


16


B. The input rollers


11


-


14


and material shaping roller


9


shown in

FIGS. 1-5

are also used in the compact apparatus


71


although not shown in

FIGS. 17-20D

for simplicity.




The rotary cutting die assembly,


79


in

FIG. 17

, is a unit which can be removably installed in the open-ended chute structure


80


of the apparatus


71


in the direction of arrow A as depicted in

FIG. 18

from either side of the apparatus. The structure


80


forms input and output chutes


81


and


82


, respectively, leading to and from the cooperating feed rollers in the compact apparatus through respective openings


83


and


84


. The cutting blades


74


on the rotary cutting die/feed roller


72


are arranged at an angle α to the roller axis B—B as shown in FIG.


19


A. The angle α is 18° in the example embodiment, but could be another angle, although preferably a is within the range of 10° and 80° for the reasons discussed below. The blades are embedded in the roller surface with their outer cutting edges protruding from the roller surface and following the roller circumference as seen in

FIGS. 19B and 19C

. The smoothed surface feed roller


73


in the example embodiment is formed of an ultrahigh molecular weight plastic. The roller has a diameter slightly different from roller


72


for even wear. The material


8


fed between the rollers


72


and


73


is pinched between the opposed surface of the rotatably driven rollers for feeding and cutting slits in the material.




The plurality of shaping rollers upstream of the rotary cutting die assembly


79


are preferably dimensioned and adjusted to reduce the width of the material so that random convolutions


85


are formed in the material across the width of the material. This is done without folding back the edges of the material as in the product of

FIGS. 7A-7C

. The rollers are rotatably mounted so as to move with the contacting strip of material thereby minimizing sliding contact and friction. The material, including these convolutions are slit by the rotary cutting die. This feature, together with the angle of slits


86


cut into the material convolutions, results in a cushioning product in which separation of the material starts with the expansion of the slits through the random convolutions of the paper or other material into an irregular honeycomb-like structure


86


, see

FIGS. 20B and 20C

. Separation of the material is completed with the fracture of the honeycomb structure to provide a length


75


of the material,

FIG. 20D

, upon ripping by the operator.




The feed roller/rotary cutting die


72


in the example embodiment has a circumferential surface with annular portions


87


and


88


of relatively larger and relatively smaller diameter spaced along the roller axis B—B. The cutting blades


74


are located intermediate the axial ends of the roller and circumferentially between the opposite ends of the relatively larger diameter annular portions


87


as seen in FIG.


19


A. The void fill and cushioning dunnage produced by the compact apparatus


71


advantageously exhibits a hinge effect at each slit area along its length as it is fed from the apparatus so that the material readily folds on itself during dispensing as shown at


87


in

FIGS. 20A-20C

. It has been found that this helps rapidly fill voids in packages with little effort by the operator once the filling process is started. The slits also enable quick ripping of a length of the material from the continuous strip once the package has been filled.




While I have shown and described only several example embodiments in accordance with the present invention, it is understood that various changes and modifications can be made therein by the skilled artisan without departing from the invention. Therefore, I do not wish to be limited to specific example embodiments disclosed herein, but intend to cover such variations as are encompassed by the scope of the appended claims.



Claims
  • 1. A compact apparatus for creating and dispensing material for use as void fill and cushioning dunnage, said apparatus being capable of being mounted as a unit on a stand and comprising:a motor and a material feeding arrangement driven by said motor, said material feeding arrangement including cooperating feed rollers having opposed circumferentially continuous cylindrical surfaces for pulling material from a supply of material and feeding it through said apparatus; a plurality of material shaping members upstream of said material feeding arrangement for reducing the width of the material so that random, longitudinally extending convolutions are formed therein across the width of the material as the material is fed through said apparatus; and wherein at least one of said feed rollers is a rotary cutting die having a plurality of cutting blades on its surface arranged at an acute angle to the roller axis for cutting slits in the material, including the random convolutions, at spaced locations along the length of said material as the material is fed through said apparatus to allow the material to readily fold on itself during dispensing and to allow an operator to rip from said apparatus a desired length of cushioning product being dispensed by said apparatus.
  • 2. The apparatus according to claim 1, wherein the plurality of cutting blades are in spaced, overlapping relation to one another on the surface of the rotary cutting die in a direction on the roller axis.
  • 3. The apparatus according to claim 1, wherein the cutting blades are embedded in the roller surface with their cutting edges following the roller circumference.
  • 4. The apparatus according to claim 1, wherein at least one of said feed rollers has a circumferential surface with annular portions of relatively larger and relatively smaller diameter spaced along the roller axis.
  • 5. The apparatus according to claim 4, wherein said feed roller having said larger and smaller diameter annular portions on its circumferential surface is provided with said plurality of said cutting blades.
  • 6. The apparatus according to claim 5, wherein the plurality of cutting blades are located on the circumference of the feed roller between opposite ends of the larger diameter annular portions.
  • 7. The apparatus according to claim 1, wherein said plurality of shaping members comprise spaced input rollers which delimit an input opening through which the material is drawn for reducing the width of the material and forming said random convolutions in the material across the width of the material being slit.
  • 8. The apparatus according to claim 7, wherein said spaced input rollers comprise a first pair of spaced, parallel rollers followed by a second pair of spaced, parallel rollers extending in a direction transverse to said first pair of rollers, said first and second pairs of rollers delimiting said input opening for reducing the width of said material and forming random convolutions in the material across the width of the material being slit.
  • 9. The apparatus according to claim 7, wherein the size of said input opening is small enough to preclude an operator's hand from being inserted through said input opening for operator safety.
  • 10. The apparatus according to claim 1, wherein said material shaping members include a first material shaping member which directs the lateral edges of the material in a first direction.
  • 11. The apparatus according to claim 10, wherein said first material shaping member is a convex material shaping roller over which said material is drawn.
  • 12. The apparatus according to claim 1, further comprising input and output chutes for guiding said material on respective sides of said material feeding arrangement.
  • 13. The apparatus according to claim 1, wherein said motor and material feeding arrangement form a die cut assembly which is removably mounted in said apparatus.
  • 14. A die cut assembly for use in an apparatus for creating and dispensing material for use as void fill and cushioning dunnage, said assembly comprising:a motor and a material feeding arrangement driven by said motor, said material feeding arrangement including cooperating feed rollers with opposed circumferentially continuous cylindrical surfaces between which material is pinched for pulling material from a supply of material and feeding it through the assembly, wherein at least one of said feed rollers is a rotary cutting die having a plurality of cutting blades on its surface arranged at an acute angle to the roller axis for cutting slits in the material at spaced locations along the length of said material as the material is fed through the assembly.
  • 15. The assembly according to claim 14, wherein the plurality of cutting blades are in spaced, overlapping relation to one another on the surface of the rotary cutting die in a direction along the roller axis.
  • 16. The assembly according to claim 14, wherein the cutting blades are embedded in the roller surface with their cutting edges following the roller circumference.
  • 17. The assembly according to claim 14, wherein at least one of said feed rollers has a circumferential surface with annular portions of relatively larger and relatively smaller diameters spaced along the roller axis.
  • 18. The assembly according to claim 17, wherein said feed roller having said larger and smaller diameter portions on its circumferential surface is provided with said plurality of cutting blades.
  • 19. The assembly according to claim 18, wherein the plurality of blades are located on the circumference of the feed roller between opposite ends of the larger diameter annular portions.
  • 20. A system for creating and dispensing material for use as void fill and cushioning dunnage, said system comprising a stand and a compact apparatus which is mounted as a unit on the stand, said compact apparatus includinga motor and a material feeding arrangement driven by said motor, said material feeding arrangement including cooperating feed rollers having opposed circumferentially continuous cylindrical surfaces for pulling material from a supply of material and feeding the material through said apparatus; a plurality of material shaping members upstream of said material feeding arrangement for shaping material to convert the material into a continuous strip of cushioning product as the material is fed through said apparatus; and at least one of said feed rollers being a rotary cutting die having a plurality of cutting blades on its surface arranged at an acute angle to the roller axis for cutting slits in the material at spaced locations along the length of the material as the material is fed through said apparatus to allow an operator to rip from said apparatus a desired length of cushioning product being dispensed by said apparatus.
  • 21. The system according to claim 20, wherein said compact apparatus is pivotally mounted on said stand to facilitate material loading.
  • 22. The system according to claim 20, wherein said stand is in the form of a material cart with wheels, said material cart including a support for rotatably supporting a roll of material to be supplied to said compact apparatus.
  • 23. The system according to claim 22, wherein said material cart includes a roll tensioner for tensioning the material being unwound from said roll by said compact apparatus.
  • 24. The system according to claim 22, wherein said material cart includes a work surface for an operator handling cushioning product dispensed by said compact apparatus.
  • 25. The system according to claim 20, wherein said stand includes a work surface for an operator handling cushioning product dispensed by said compact apparatus.
  • 26. A system according to claim 20, further comprising a support for rotatably supporting a roll of material to be supplied to said compact apparatus.
  • 27. The system according to claim 26, further comprising an overhead delivery system for delivering rolls of material to said roll support, said roll support being elevated above an adjacent work surface for an operator handling cushioning product dispensed by said compact apparatus.
  • 28. The system according to claim 20, further comprising a conveyor located in front of said compact apparatus to provide a work surface for an operator handling cushioning product dispensed by said compact apparatus.
  • 29. A system for creating and dispensing material for use as void fill and cushioning dunnage, said system comprising:a compact apparatus capable of being mounted as a unit on a stand, said compact apparatus including a motor and a material feeding arrangement driven by said motor for pulling material from a supply of material and feeding the material through said apparatus; a plurality of material shaping members upstream of said material feeding arrangement for shaping material to convert the material into a continuous strip of cushioning product as it is fed through said apparatus; and wherein said material feeding arrangement includes cooperating feed rollers having opposed circumferentially continuous cylindrical surfaces, at least one of said feed rollers being a rotary cutting die having a plurality of cutting blades on its surface arranged at an acute angle to the roller axis for cutting slits in the material at spaced locations along the length of said material as the material is fed through said apparatus to allow an operator to rip from said apparatus a desired length of cushioning product being dispensed by said apparatus; and said system further including a roll support for rotatably supporting a roll of material from which material to be supplied to said compact apparatus can be unwound.
  • 30. The system according to claim 29, wherein said roll support includes a roll tensioner for tensioning the material being unwound from said roll by said compact apparatus.
  • 31. The system according to claim 29, further comprising an overhead roll delivery system for delivering rolls of material to said roll support, said roll support being elevated above an adjacent work surface for an operator handling cushioning product dispensed by said compact apparatus.
RELATED APPLICATIONS

This application is a Continuation-in-Part of U.S. application Ser. No. 09/819,998, filed Mar. 29, 2001, and now U.S. Pat. No. 6,503,182 issued Jan. 7, 2003, which is hereby incorporated by reference. Commonly owned U.S. patent application Ser. No. 09/819,640, filed Mar. 29, 2001, and now U.S. Pat. No. 6,471,154 issued Oct. 29, 2002, for Automatic Roll Tensioner and Material Dispensing System Using the Same, is also hereby incorporated by reference.

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Continuation in Parts (1)
Number Date Country
Parent 09/819998 Mar 2001 US
Child 10/208772 US