CA2705448A1 - Dunnage conversion machine with translating grippers, and method and product - Google Patents

Dunnage conversion machine with translating grippers, and method and product Download PDF

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Publication number
CA2705448A1
CA2705448A1 CA2705448A CA2705448A CA2705448A1 CA 2705448 A1 CA2705448 A1 CA 2705448A1 CA 2705448 A CA2705448 A CA 2705448A CA 2705448 A CA2705448 A CA 2705448A CA 2705448 A1 CA2705448 A1 CA 2705448A1
Authority
CA
Canada
Prior art keywords
paddles
machine
dunnage
set forth
paddle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2705448A
Other languages
French (fr)
Other versions
CA2705448C (en
Inventor
Kurt Kung
Dieter Schwarz
Dan Coppus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ranpak Corp
Original Assignee
Ranpak Corp.
Kurt Kung
Dieter Schwarz
Dan Coppus
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ranpak Corp., Kurt Kung, Dieter Schwarz, Dan Coppus filed Critical Ranpak Corp.
Publication of CA2705448A1 publication Critical patent/CA2705448A1/en
Application granted granted Critical
Publication of CA2705448C publication Critical patent/CA2705448C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B31D5/0043—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material
    • B31D5/0047—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material involving toothed wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B31D5/0043—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0047—Feeding, guiding or shaping the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0076—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads involving particular machinery details
    • B31D2205/0082—General layout of the machinery or relative arrangement of its subunits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/967—Dunnage, wadding, stuffing, or filling excelsior
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24446—Wrinkled, creased, crinkled or creped
    • Y10T428/24455—Paper

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A dunnage conversion machine for converting stock material into a dunnage product includes a forming assembly and a pulling assembly. The pulling assembly includes at least two grippers movable together through a transfer region in opposition to one another and cooperative to grip therebetween the dunnage strip for advancing the dunnage strip through the transfer region, and at least one of the grippers including an aperture operative to gather and laterally capture therein the dunnage strip as the grippers move through the transfer region. Also disclosed is a severing assembly including a movable blade and a reciprocating actuator connected to the blade by a motion transmitting assembly that moves the blade through a full severing cycle upon a stroke of the actuator in either direction. Also disclosed is a void fill dunnage product including a three dimensional crumpled strip of dunnage round in cross-section and including at least one ply of sheet material having, in cross section, a crumpled multi-lobed undulating body, with the lobes thereof extending longitudinally and being dispersed in an irregular pattern.

Claims

What is claimed is:

1. A dunnage conversion machine for converting sheet stock material into a dunnage product, comprising a conversion assembly with (a) an inwardly-gathering device to inwardly gather lateral portions of a sheet stock material, where the device has an outlet at a downstream end and an inlet at an upstream end, and the device has a width dimension that is narrower at the outlet than at the inlet; and (b) at least two sets of paddles driven to rotate about respective axes and along respective continuous paths downstream of the outlet, where the respective axes are parallel to the width dimension of the outlet, the paddles have a dimension that extends substantially the width of the outlet, and the paddles have an outwardly-opening aperture for engaging the sheet stock material as the set of paddles rotate.

2. A machine as set forth in claim 1, where each set of paddles is driven independently but in synchronization with the other set to advance sheet stock material through the conversion assembly.

3. A machine as set forth in claim 1, where opposing paddles of respective sets move through a transfer region between the sets of paddles in longitudinally offset relation to engage and advance a strip of dunnage.

4. A machine as set forth in claim 3, where opposing paddles of respective sets transversely overlap while advancing through the transfer region without the paddles of one set engaging the paddles of the other set to drive the other set of paddles.

5. A machine as set forth in claim 3, where the opposing sets of paddles progressively move towards one another at an upstream end of the transfer region to engage opposite sides of a strip of dunnage, transfer the strip through the transfer region, and progressively move away from one another at a downstream end of the transfer region to release the dunnage strip.

6. A machine as set forth in claim 2, where both sets of paddles are connected to a motor via a drive train.

7. A machine as set forth in claim 6, where each set of paddles is mounted around an axis to form a paddle wheel.

8. A machine as set forth in claim 7, where the drive train includes a gear mounted to each paddle wheel that coact with one another to drive the paddle wheels at the same speed.

9. A machine as set forth in claim 7, where each paddle wheel includes at least one paddle extending radially from a central core to engage and advance the sheet stock material as the paddle wheels rotate to move the paddles through a transfer region between the paddle wheels.

10. A machine as set forth in claim 7, where the paddles of each paddle wheel are circumferentially spaced around a common axis and are joined together for rotation about the common axis.

11. A machine as set forth in claim 7, where the paddles of each paddle wheel extend perpendicularly from the respective common axis.

12. A machine as set forth in claim 7, where the paddle wheels include a plurality of uniformly circumferentially spaced paddles, each of which has a generally planar shape.

13. A machine as set forth in claim 7, where the paddle wheels have parallel axes of rotation.

14. A machine as set forth in claim 1, where the conversion assembly includes:
a forming assembly for shaping the sheet material into a continuous strip of dunnage; and a pulling assembly positioned downstream from the forming assembly for advancing the sheet material through the forming assembly;
the pulling assembly including the paddle wheels, and the paddles are movable through a transfer region in opposition to paddles in the opposing set and are cooperative to grip the strip of dunnage between them to advance the dunnage strip through the transfer region.

15. A machine as set forth in claim 14, where the forming assembly includes a constriction member which constricts and guides the strip of dunnage from a downstream end of the forming assembly to an engagement region between the opposing paddles.

16. A machine as set forth in claim 15, where the constriction member is a ring.

17. A dunnage conversion machine for converting sheet stock material into a dunnage product, comprising a conversion assembly with at least two paddle wheels rotatable about respective spaced, parallel axes; each paddle wheel including at least one paddle extending from a central core; the paddle has a width dimension parallel to the axis and the paddle extends in a substantially widthwise direction, and the paddle has a notch extending through the paddle between its widthwise extents so that the notch interrupts the distal extent of the paddle wheel along its width.

18. A machine as set forth in claim 17, where the notch defines an outwardly opening aperture.

19. A machine as set forth in claim 17, where the conversion assembly further includes guide members at a downstream side of the paddle wheels, the guide members including fingers that correspond to the notch in the paddle to strip any sheet stock material from the notch and guide the sheet stock material downstream of the conversion assembly.
CA2705448A 2000-06-09 2001-06-08 Dunnage conversion machine with translating grippers, and method and product Expired - Lifetime CA2705448C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US21081500P 2000-06-09 2000-06-09
US60/210,815 2000-06-09
CA2412440A CA2412440C (en) 2000-06-09 2001-06-08 Dunnage conversion machine with translating grippers, and method and product

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA2412440A Division CA2412440C (en) 2000-06-09 2001-06-08 Dunnage conversion machine with translating grippers, and method and product

Publications (2)

Publication Number Publication Date
CA2705448A1 true CA2705448A1 (en) 2001-12-13
CA2705448C CA2705448C (en) 2012-08-07

Family

ID=22784351

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2705448A Expired - Lifetime CA2705448C (en) 2000-06-09 2001-06-08 Dunnage conversion machine with translating grippers, and method and product
CA2412440A Expired - Lifetime CA2412440C (en) 2000-06-09 2001-06-08 Dunnage conversion machine with translating grippers, and method and product

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA2412440A Expired - Lifetime CA2412440C (en) 2000-06-09 2001-06-08 Dunnage conversion machine with translating grippers, and method and product

Country Status (13)

Country Link
US (6) US6676589B2 (en)
EP (1) EP1296814B1 (en)
JP (1) JP4607422B2 (en)
KR (1) KR100743955B1 (en)
CN (1) CN1176801C (en)
AT (1) ATE309088T1 (en)
AU (2) AU6977501A (en)
CA (2) CA2705448C (en)
DE (1) DE60114826T2 (en)
ES (1) ES2254445T3 (en)
HK (1) HK1058333A1 (en)
MX (1) MXPA02012171A (en)
WO (1) WO2001094107A2 (en)

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