WO2000078534A1 - Single facer with resilient small diameter corrugating roll - Google Patents
Single facer with resilient small diameter corrugating roll Download PDFInfo
- Publication number
- WO2000078534A1 WO2000078534A1 PCT/US2000/014886 US0014886W WO0078534A1 WO 2000078534 A1 WO2000078534 A1 WO 2000078534A1 US 0014886 W US0014886 W US 0014886W WO 0078534 A1 WO0078534 A1 WO 0078534A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roll
- small diameter
- corrugating
- corrugating roll
- flutes
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 239000005011 phenolic resin Substances 0.000 claims description 6
- 229920001568 phenolic resin Polymers 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 229920002472 Starch Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 5
- 239000011087 paperboard Substances 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920006282 Phenolic fiber Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
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
- 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
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
- B31F1/2877—Pressing means for bringing facer sheet and corrugated webs into contact or keeping them in contact, e.g. rolls, belts
-
- 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
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
-
- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
- Y10T156/1016—Transverse corrugating
-
- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1025—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact
Definitions
- the invention pertains to an apparatus for forming a single face web of corrugated paperboard. More particularly, the invention relates to a corrugating roll assembly comprising a large diameter corrugating roll (i.e. a bonding roll) and a small diameter corrugating roll in which the small diameter roll is resilient so that it is capable of deflection in the vicinity of the corrugating nip in order to cushion impact as the rolls mesh along the corrugating nip.
- a corrugating roll assembly comprising a large diameter corrugating roll (i.e. a bonding roll) and a small diameter corrugating roll in which the small diameter roll is resilient so that it is capable of deflection in the vicinity of the corrugating nip in order to cushion impact as the rolls mesh along the corrugating nip.
- a single facer apparatus is used to corrugate the medium web, to apply glue to the flute tips on one face of the corrugated medium web, and to bring a liner web into contact with the glued flute tips of the medium web with the application of sufficient heat and pressure to provide an initial bond.
- conventional single facers have typically included a pair of fluted corrugating rolls and a pressure roll, which are aligned so that the axes of all three rolls are generally coplanar.
- the medium web is fed into a corrugating nip formed by the interengaging corrugating rolls. While the corrugated medium web is still on one of the corrugating rolls, adhesive is applied to the flute tips by a glue roll.
- the liner web is immediately thereafter brought into contact with the adhesive-coated flute tips.
- the fluted corrugating rolls have typically been generally the same size as each other. More recently, a significantly improved single facer apparatus has been developed in which the corrugating rolls comprise a large diameter bonding roll and a substantially smaller diameter roll, with the ratio of diameters preferably being 3:1 or greater.
- One such apparatus is disclosed in U.S. Patent No. 5,628,865, and improvements thereon are described in copending application Serial Nos. 08/854,953, filed May 13, 1997 and 09/044,516, filed March 19, 1998, and 09/244,904, filed February 4, 1999, all of which disclosures are incorporated herein by reference.
- the single facer typically includes a backing arrangement for the small diameter corrugating roll.
- One preferred backing arrangement includes a series of axially adjacent pairs of backing idler rollers, each pair having a backing pressure belt entrained therearound.
- Each of the pressure belts is positioned to bear directly against the fluted surface of the small diameter corrugating roll on the side of the small corrugating roll opposite the corrugating nip.
- Each pair of associated idler rolls and pressure belts is mounted on a linear actuator, and can thus engage the small diameter corrugating roll with a selectively adjustable force.
- the application of force against the small diameter corrugating roll applies force along the corrugating nip between the small diameter roll and the large diameter roll.
- a force of approximately 100 lbs. per linear inch e.g. 10,000 lbs. for a 100 inch roll
- the invention involves the use of a small diameter corrugating roll that is designed to cushion contact at the corrugating nip between the flutes on the small diameter corrugating roll and the flutes on the large diameter corrugating and bonding roll.
- the cushioning by the small diameter corrugating roll reduces the transmission of vibration impulses to the belted backing arrangement, and thus reduces undesired vibrational movement of the small diameter corrugating roll. Reduction of such vibrational movement, and primarily reduction of radial vibrational movement, improves the quality and consistency of the corrugation. It also reduces noise levels and roll wear rate.
- the small diameter corrugating roll is made to be resilient, e.g., constructed using an inner steel tube or carbon fiber tube having approximately a four inch outside diameter and a 1/8 inch wall thickness.
- the small diameter corrugating roll is a composite roll in which the flutes are made of a sacrificial material such as reinforced phenolic resin as described in the above- incorporated copending U.S. Patent Application No. 09/244,904. Such flutes are preferably mounted on the outside surface of the resilient steel or carbon fiber tube with epoxy.
- the resilient tube deflects inward as the flutes on the small diameter roll impact the flutes on the large diameter roll at the corrugating nip. This deflection occurs without causing substantial movement of the center axis of the tube for the small diameter roll.
- the maximum inward deflection of the resilient tube is within the range of 2/1000 to 5/1000 of an inch for typical corrugating loading conditions. While this amount of deflection may seem relatively small, it significantly reduces the amplitude of vibrations transmitted to the belted backing arrangement. After the deflected region passes through the corrugating nip, it springs outward to its normal position.
- the flutes are made of a sacrificial phenolic resin or other similar material, the flutes themselves assist in cushioning the impact, although deflection of the resilient tube accounts for a substantial portion of the cushioning. It is preferred that the flutes on the small diameter corrugating roll have a different profile than the flutes on the large diameter corrugating roll such that there is a clearance between flute tips on the large diameter bonding roll and the gullets or roots of the flutes on the small diameter corrugating roll. In this manner, the medium web fed to the corrugating nip is pressured against the fluted profile of the large diameter corrugating roll as the medium web passes through the meshed flutes in the corrugating nip. Also, inasmuch as wear does not effect the radial distance of the gullets, this arrangement assures that the small diameter corrugating roll follows the bonding roll more consistently.
- Another advantage of designing the small diameter corrugating roll with a relatively thin wall thickness is that the reduced weight of the small diameter roll has been found to significantly change the natural resonance frequency for the system.
- using a small diameter roll having a thin wall in accordance with the invention typically causes the natural resonance frequency to shift upward outside of practical operating speeds for producing corrugated paperboard.
- FIG. 1 is a side elevation view of a single facer using a small diameter corrugating roll designed in accordance with the present invention.
- Fig. 2 is a perspective view of a small diameter corrugating roll constructed for use in accordance with the invention.
- Fig. 3 is a cross-sectional view of a small diameter corrugating roll in accordance with the prior art.
- Fig. 4 is a cross-sectional view of a small diameter corrugating roll in accordance with a preferred embodiment of the invention.
- Fig. 4a is a view similar to Fig. 4 illustrating cushioning deflection (exaggerated) of a small diameter corrugating roll in accordance with the invention.
- Fig. 5 is a detailed schematic view showing the meshing of flutes on a large diameter corrugating roll with flutes on a small diameter corrugating roll with a medium web therebetween as in accordance with the invention.
- a single facer 10 includes a very large diameter upper corrugating roll 11 (i.e. a bonding roll 11) and a much small diameter lower corrugating roll 12.
- the rolls 11, 12 are fluted and mounted for interengaging rotational movement on parallel axes, all in a manner well known in the art and which has been described in greater detail in the above-identified copending patent applications.
- a medium web 13, which may be suitably pretreated by moistening and heating, is fed into a corrugating nip 14 formed by the interengaging corrugating rolls 11 and 12.
- the corrugating medium web 13, as it leaves the nip 14, remains on the surface of the large diameter bonding roll 11.
- a glue roll 15 applies a liquid adhesive, typically starch, to the exposed flute tips of the corrugated medium web 13.
- a liner web 16 is brought into contact with the glued flute tips of the corrugated medium web by a liner delivery roll 17.
- the resulting freshly glued single face web 18 continues around at least a portion of the outer circumference of the large diameter roll 11.
- the large diameter roll 11 also functions as a bonding roll, it is internally heated, for example with steam, to cause the starch adhesive to enter the so-called "green bond" stage.
- the circumferential residence of the single face web 18 on the bonding roll 11 may be varied by the use of a pivotable wrap arm 20 depending on many variable factors, such as paper weight, web speed, bonding roll temperature, and the like.
- the free end of wrap arm 20 includes an idler roller 21 that bears on the outer face of the liner web 16 to control the amount of wrap of the single face web 18 on the bonding roll 11.
- the large diameter corrugating and bonding roll 11 typically has a diameter in the range of 39 inches (about 1000 millimeters) and the much smaller diameter lower corrugating roll 12 typically has a diameter of about five inches (about 128 millimeters).
- the prior art identified herein above provides various backing arrangements for the small diameter roll 12, one of which backing arrangements 23 is shown in the drawing.
- the backing arrangement 23 includes a series of axially adjacent pairs of backing idler rolls 24, each of which pairs has a backing belt 25 entrained therearound.
- Each of the pressure belts 25 is positioned to bear directly against the fluted surface of the small diameter corrugating roll 12.
- Each associated pair of idler rolls 24 and backing belt 25 is mounted on a linear actuator 26.
- Fig. 3 is a cross-section illustrating the composite construction of the prior art small diameter roll 112.
- the prior art roll 112 has a relatively rigid, solid steel tube 130 and a phenolic resin-impregnated sacrificial layer 132 adhered to the tubular shaft 130.
- the outer diameter of roll 112 shown in Fig. 3 is typically about five inches as measured from diametrically opposed flute tips.
- the outside diameter of the steel shaft 130 is typically about 3 1/8 inches and the thickness of the wall of the steel tube 130 is typically be about l A of an inch.
- the sacrificial fluted layer 132 include a cotton canvas as a reinforcing fabric for the phenolic resin, although other reinforcing fibers are also believed to be suitable.
- the sacrificial layer 132 is preferably attached using epoxy.
- the construction of the prior art roll 112 shown in Fig. 3 is explained in detail in copending Patent Application No. 09/244,904, as well as various advantages of using the sacrificial layer 132.
- the use of a sacrificial phenolic fluted layer 132 in itself results in quieter operation, as well as longer wear life for the large diameter bonding roll 11.
- the extended wear lift for the bonding roll 11 is particularly desirable because the large diameter bonding roll 11 is much more expensive than the small corrugating roll 12.
- the roll 112 may be discarded, or preferably, it may be rehobbed to reform the flute pattern and used again.
- Fig. 4 shows a small diameter corrugating roll 12 constructed in accordance with the preferred embodiment of the invention.
- the roll 12 includes a thin wall steel tube 30 or a thin wall carbon fiber tube 30.
- the outside diameter of the steel or carbon fiber tube 30 is about four inches, and the inside diameter of the steel tube 30 is about 3.75 inches. Therefore, the steel or carbon fiber tube 30 has a wall thickness of about 1/8 of an inch, thus rendering the tube 30 somewhat flexible and resilient.
- the fluted sacrificial layer 32 (preferably reinforced phenolic resin as described above) is mounted to the outside surface of the steel or carbon fiber tube 30 in order to form a composite structure for the small diameter corrugating roll 12.
- the roll 112 moves up and down due to interaction between the flutes of the large diameter roll 11 and the flutes of the small diameter roll 112.
- this motion is well known in the industry and is called "chordal action”.
- the amplitude of vertical motion of a rigid, small diameter corrugating roll 112 as shown in Fig. 3 is typically within the range of 2/1000 of an inch to 3/1000 of an inch at normal operating loads and speeds.
- vertical motion creates a dynamic force that is transmitted both to the bonding roll 11 and to the supporting belt 25.
- noise level and roll surface wear are relatively high, even when using a sacrificial layer 132 construction.
- bouncing can actually occur, especially at speeds at or near the natural resonance frequency.
- a small diameter corrugating roll 12 constructed in accordance with the invention absorbs vertical vibration due to chordal action by providing for cushioning deflection within the inner tube 30.
- Fig. 4a illustrates this cushioning deflection in an exaggerated manner.
- the portion 34 of the small diameter corrugating roll 12 engaging with the flutes on the large diameter roll 11 are deflected inward in the direction of arrow 36 in order to cushion impact at the corrugating nip 14.
- the maximum amount of deflection (arrow 36) is in the range of 2/1000 of an inch to 5/1000 of an inch in the vicinity of the corrugating nip 14 when the roll 12 is subject to a backing force of 100 lbs. per inch.
- the typical deflection is approximately 3/1000 of an inch.
- the deflection is slightly less.
- a lower corrugating roll 12 as constructed in accordance with the invention to have a resilient and relatively flexible inner tube 30 further reduces noise level and roll wear.
- a small diameter corrugated roll 12 constructed in accordance with the preferred embodiment of the invention has less mass than conventional solid steel rolls, as well as the prior art composite roll 112 shown in Fig. 3. Because of the lighter mass, the resonance frequency of the system occurs at a higher line speed that is well above normal operating speeds for single facers.
- Fig. 5 is a detailed view illustrating the medium web 13 entering the corrugating nip 14 between flutes 28 on the small diameter corrugating roll 12 and the flutes 29 on the large diameter roll 11 (i.e. the bonding roll 11).
- the bonding roll 11 is rotating in the direction of arrow 42 and the small diameter corrugating roll is rotating in the same direction as depicted by arrow 44.
- the medium web 13 enters the corrugating nip from the left side of Fig. 5.
- the profile of the flutes 28 on the small diameter corrugating roll 12 are different than the profiles of the flutes 29 on the large diameter corrugating roll 11.
- the gullets or roots 46 of the flutes 28 on the small diameter corrugating roll 12 are deeper than the flute gullets 48 for the large diameter bonding roll 11. With this configuration, only the tips 50 of the flutes 28 on the small diameter corrugating roll 12 contact the flute gullets 48 on the bonding roll 11. This means that there is a clearance 52 between flute tips 54 on the bonding roll 11 and the flute gullets 46 on the small diameter corrugating roll 12 (e.g., preferably 10/1000 to 20/1000 of an inch).
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU54508/00A AU5450800A (en) | 1999-06-18 | 2000-05-31 | Single facer with resilient small diameter corrugating roll |
EP00939420A EP1196280A4 (en) | 1999-06-18 | 2000-05-31 | Single facer with resilient small diameter corrugating roll |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/336,104 | 1999-06-18 | ||
US09/336,104 US6170549B1 (en) | 1999-06-18 | 1999-06-18 | Single facer with resilient small diameter corrugating roll |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000078534A1 true WO2000078534A1 (en) | 2000-12-28 |
WO2000078534A8 WO2000078534A8 (en) | 2001-06-28 |
Family
ID=23314590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/014886 WO2000078534A1 (en) | 1999-06-18 | 2000-05-31 | Single facer with resilient small diameter corrugating roll |
Country Status (4)
Country | Link |
---|---|
US (2) | US6170549B1 (en) |
EP (1) | EP1196280A4 (en) |
AU (1) | AU5450800A (en) |
WO (1) | WO2000078534A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022200405A1 (en) * | 2021-03-23 | 2022-09-29 | Interpac Ltd | A method and apparatus for manufacturing corrugated paperboard |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6170549B1 (en) * | 1999-06-18 | 2001-01-09 | Marquip, Inc. | Single facer with resilient small diameter corrugating roll |
US6623416B2 (en) | 1999-06-18 | 2003-09-23 | Marquip, Llc | Single facer with resilient small diameter corrugating roll |
US20030079825A1 (en) * | 2001-10-25 | 2003-05-01 | Gardner Slade H. | Method and apparatus for fabricating corrugated composite stiffeners |
DE10252941B4 (en) * | 2002-11-14 | 2009-09-10 | Airbus Deutschland Gmbh | Process for producing a core structure for a core composite |
US20060070859A1 (en) * | 2004-09-24 | 2006-04-06 | Arrowhead Conveyor Corporation | Conveyor system and method of using |
US20080078495A1 (en) * | 2006-06-28 | 2008-04-03 | Carl Marschke | Web Fluting Apparatus and method of Forming Open Core Web Elements |
US7459049B2 (en) * | 2006-06-28 | 2008-12-02 | Marschke Carl R | Method and apparatus for manufacturing open core elements from web material |
US8484938B2 (en) * | 2011-03-16 | 2013-07-16 | Macdon Industries Ltd | Drive roller with ribs for the draper canvas of a crop header |
JP6470921B2 (en) * | 2014-06-18 | 2019-02-13 | 三菱重工機械システム株式会社 | Single facer gluing roll position adjusting device and gluing roll position adjusting method |
JP7044905B2 (en) | 2018-04-17 | 2022-03-30 | イントプロ, エルエルシー | Waveform product manufacturing equipment |
CN114161775B (en) * | 2021-11-02 | 2023-08-01 | 浙江盛华包装股份有限公司 | Corrugated roller structure |
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US3477906A (en) * | 1963-12-06 | 1969-11-11 | Peterson & Son As M | Shrinkage of web material such as paper |
US5628865A (en) * | 1996-03-26 | 1997-05-13 | Marquip, Inc. | Single facer with small intermediate corrugating roll |
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US3053309A (en) | 1958-07-21 | 1962-09-11 | S & S Corrugated Paper Mach | Corrugating flute contour |
US4038130A (en) * | 1975-07-16 | 1977-07-26 | Koppers Company, Inc. | Corrugating machine having self-adjusting web guides |
US4288273A (en) * | 1980-05-12 | 1981-09-08 | Butler Greenwich Inc. | Method and apparatus for making corrugated board |
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JPS5712631A (en) * | 1980-06-27 | 1982-01-22 | Mitsubishi Heavy Ind Ltd | Single facer |
JPS6052936B2 (en) * | 1980-06-27 | 1985-11-22 | 三菱重工業株式会社 | single facer |
JPS62214945A (en) * | 1986-03-17 | 1987-09-21 | 株式会社イソワ | Production unit for single-sided corrugated board |
JPS62249731A (en) * | 1986-04-23 | 1987-10-30 | 三菱重工業株式会社 | Single facer |
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DE19651937B4 (en) * | 1996-12-15 | 2010-03-25 | Frank Prof. Dr. Mirtsch | Process for the production of multiple beulstrukturierter thin-walled material webs and method for the production of multiple beulstrukturierter can hulls |
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US6089296A (en) * | 1998-06-01 | 2000-07-18 | Marquip, Inc. | Pre-conditioning of a medium web during the fabrication of corrugated paperboard |
US6311615B1 (en) * | 1998-07-14 | 2001-11-06 | Heidelberger Druckmaschinen Ag | Composite nip roll and nip ring |
US6170549B1 (en) * | 1999-06-18 | 2001-01-09 | Marquip, Inc. | Single facer with resilient small diameter corrugating roll |
US6623416B2 (en) * | 1999-06-18 | 2003-09-23 | Marquip, Llc | Single facer with resilient small diameter corrugating roll |
-
1999
- 1999-06-18 US US09/336,104 patent/US6170549B1/en not_active Expired - Lifetime
-
2000
- 2000-05-31 EP EP00939420A patent/EP1196280A4/en not_active Withdrawn
- 2000-05-31 WO PCT/US2000/014886 patent/WO2000078534A1/en not_active Application Discontinuation
- 2000-05-31 AU AU54508/00A patent/AU5450800A/en not_active Abandoned
-
2001
- 2001-01-09 US US09/756,888 patent/US6733432B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3477906A (en) * | 1963-12-06 | 1969-11-11 | Peterson & Son As M | Shrinkage of web material such as paper |
US5628865A (en) * | 1996-03-26 | 1997-05-13 | Marquip, Inc. | Single facer with small intermediate corrugating roll |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022200405A1 (en) * | 2021-03-23 | 2022-09-29 | Interpac Ltd | A method and apparatus for manufacturing corrugated paperboard |
GB2620334A (en) * | 2021-03-23 | 2024-01-03 | Interpac Ltd | A method and apparatus for manufacturing corrugated paperboard |
Also Published As
Publication number | Publication date |
---|---|
WO2000078534A8 (en) | 2001-06-28 |
US6733432B2 (en) | 2004-05-11 |
US20010014644A1 (en) | 2001-08-16 |
AU5450800A (en) | 2001-01-09 |
US6170549B1 (en) | 2001-01-09 |
EP1196280A4 (en) | 2004-11-10 |
EP1196280A1 (en) | 2002-04-17 |
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