WO1990012748A1 - Corrugated board treatment method and machine - Google Patents
Corrugated board treatment method and machine Download PDFInfo
- Publication number
- WO1990012748A1 WO1990012748A1 PCT/GB1989/001210 GB8901210W WO9012748A1 WO 1990012748 A1 WO1990012748 A1 WO 1990012748A1 GB 8901210 W GB8901210 W GB 8901210W WO 9012748 A1 WO9012748 A1 WO 9012748A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- board
- corrugated board
- perforated
- folded
- flat pack
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
- B65D65/403—Applications of laminates for particular packaging purposes with at least one corrugated layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
- B26F1/20—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material with tools carried by a rotating drum or similar support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
Definitions
- This invention relates generally to corrugated board, and in particular to the final production stage of the board and the packaging, dispensation and handling of the board after manufacture.
- Corrugated board is manufactured as either single or double face board.
- Single face corrugated board comprises a fluted layer bonded to a liner on one side only.
- Double face corrugated board comprises a fluted layer sandwiched between two such liners .
- Kraft liners are manufactured from virgin softwood chemical pulp, whilst kraft-substitute liners are made mainly from reclaimed fibres from paper and board.
- the fluting may be made partly or wholly from semi-chemical pulp or partly or wholly from reclaimed fibres, possibly with chemical additives.
- the number of flutes per unit length varies with requirements for crush resistance and for cushioning effect, having due regard to the intended use of the board, which lies in the field of packaging.
- FIG. 1 of the accompanying drawings there is diagrammatically shown a machine for the manufacture of single face corrugated board.
- the raw fluting material is shown at 13, the raw lining material at 12.
- the fluting material passes through a steam shower 20 t.o a pair of corrugator rolls 14, 15, associated with a flute guide finger 19.
- Adhesive is applied to the tips of the formed corrugations by an adhesive application roll 17, associated with an adhesive metering roll 18 with associated slot clean-out finger 21, adhesive being drawn from a tray 22.
- the liner is applied to the corrugated layer at pressure roll 16, and the single face board emerges at 10 as a continuous length thereof.
- a machine for the manufacture of double face corrugated baord would operate in much the same way, except that a further pressure roll, similar to 16 and also supplied with raw lining material as at 12, would be used to apply a second layer of liner to the corrugated layer.
- the emergent single faced corrugated board is rolled to form a reel thereof from which it may be drawn and cut, as required, during a subsequent packaging process.
- supply reels of the board are wasteful in space during transport and storage, and the rolled board tends to become damaged at the ends of the reels.
- the board is often wastefully used, as the packaging operative will frequently draw too large a length from the reel for the item to be packaged, whilst sometimes drawing too short a length which goes wholly to waste.
- Corrugated board is manufactured in various widths but can now be manufactured with perforations pitched at suitable dimensions to meet the customer's individual requirements.
- the invention According to one aspect of the present invention, there is provided a method of treatment of a continuous length of corrugated board to facilitate subsequent handling, according to which the board is perforated in lines across its width at regular intervals along the length of the board, and the perforated board is folded in zig-zag manner to form a flat pack of interconnected equally sized pieces ready for subsequent use by tearing along the perforated lines.
- the perforated board is zig-zag folded into a box subsequently to be closed by a lid having a slot through which the upper piece of the flat pack may be withdrawn.
- a flat pack of zig-zag folded equally sized pieces of corrugated board the pieces being folded along interconnected lines of perforations.
- a further feature of the invention concerns the combination of a flat pack as aforesaid with a box in which the pack is stored, the box having a slotted top wall through which the uppermost piece of the stack is withdrawable.
- a machine for the manufacture of corrugated board which includes a work station for handling a conventionally produced continuous length of board and at which the board is perforated in lines across its width at regular intervals along its length, and is then folded in zig-zag manner to form a flat pack of equally sized interconnected pieces.
- the invention extends to a machine for re- handling corrugated board which has been wound onto a supply reel thereof, and reforming the supply reel into one or more flat packs as aforesaid.
- Figure 1 is a diagrammatic view of a machine for manufacturing single face corrugated board
- Figure 2 shows a perforated roller assembly in diagrammatic manner
- Figure 2A shows a detail from Figure 2
- Figure 3 shows a package of single faced corrugated boar
- the manufactured board 10 is conventionally, as previously mentioned, wound into a reel for storage, transport and subsequent usage.
- a cutting assembly is provided to cut the supply from the machine when a reel of desired size has been wound, whereafter winding of the next reel is commenced.
- the cutting assembly may or may not be retained, but in any case, as shown in Figure 2, the manufactured board 10 passes to a perforating assembly 30, used in place of or in addition to the cutting assembly.
- the perforating assembly comprises a pair of similar perforating rollers 32 between which the board is passed so that, in accordance with the circumferential size of the rollers, the board is perforated across its width at spaced intervals along its length.
- Figure 2A shows the detail of a perforating blade 34 which is let into the upper of the two rollers 32 to form the perforations.
- variable speed mechanism usually called a variable P.R.V. box, which governs the speed at which the shafts revolve relative to the speed at which the corrugated board is produced.
- the supply of perforated board is folded in zig-zag fashion, either automatically or manually, to form a flat pack (see Figure 3) of individual pieces of board 40, all of equal size, and which are inter-connected along the lines of perforations 42.
- the pack is formed into a protective box 44, with the leading piece of board protruding from a slot 46 in the top of the box, so that it can readily be pulled out, torn off, and used for a wrapping purpose, as required. It will be appreciated that pulling out the leading piece of board and tearing it off will then leave the next piece protruding from the box ready for use.
- the original cutting assembly may be retained to cut the supply of manufactured board when a pack of required size has been formed, but alternatively the perforated supply may simply be torn from the supply when a pack has been completed.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Making Paper Articles (AREA)
Abstract
The invention relates to a method of treatment of a continuous length of corrugated board to facilitate subsequent handling, according to which the board is perforated in lines across its width at regular intervals along the length of the board, and the perforated board is folded in zig-zag manner to form a flat pack of interconnected equally sized pieces ready for subsequent use by tearing along the perforated lines. The invention also provides a flat pack of zig-zag folded corrugated board formed by this method, and also such a flat pack in combination with a box for storage of the pack, the box having a slotted top wall through which the uppermost piece of the stack is withdrawable. The method of the invention may be applied to either single face or double face corrugated board.
Description
CORRUGATED BOARD TREATMENT METHOD AND MACHINE
Field of the invention
This invention relates generally to corrugated board, and in particular to the final production stage of the board and the packaging, dispensation and handling of the board after manufacture.
Background to the invention
Corrugated board is manufactured as either single or double face board. Single face corrugated board comprises a fluted layer bonded to a liner on one side only. Double face corrugated board comprises a fluted layer sandwiched between two such liners .
Kraft liners are manufactured from virgin softwood chemical pulp, whilst kraft-substitute liners are made mainly from reclaimed fibres from paper and board. The fluting may be made partly or wholly from semi-chemical pulp or partly or wholly from reclaimed fibres, possibly with chemical additives. The number of flutes per unit length varies with requirements for crush resistance and for cushioning effect, having due regard to the intended use of the board, which lies in the field of packaging.
Referring to Figure 1 of the accompanying drawings, there is diagrammatically shown a machine for the manufacture of single face corrugated board. The raw fluting material is shown at 13, the raw lining material at 12. The fluting
material passes through a steam shower 20 t.o a pair of corrugator rolls 14, 15, associated with a flute guide finger 19. Adhesive is applied to the tips of the formed corrugations by an adhesive application roll 17, associated with an adhesive metering roll 18 with associated slot clean-out finger 21, adhesive being drawn from a tray 22. The liner is applied to the corrugated layer at pressure roll 16, and the single face board emerges at 10 as a continuous length thereof.
A machine for the manufacture of double face corrugated baord would operate in much the same way, except that a further pressure roll, similar to 16 and also supplied with raw lining material as at 12, would be used to apply a second layer of liner to the corrugated layer.
Conventionally, the emergent single faced corrugated board is rolled to form a reel thereof from which it may be drawn and cut, as required, during a subsequent packaging process.
However, supply reels of the board are wasteful in space during transport and storage, and the rolled board tends to become damaged at the ends of the reels. In addition, the board is often wastefully used, as the packaging operative will frequently draw too large a length from the reel for the item to be packaged, whilst sometimes drawing too short a length which goes wholly to waste.
Corrugated board is manufactured in various widths but can now be manufactured with perforations pitched at suitable dimensions to meet the customer's individual requirements.
The invention
According to one aspect of the present invention, there is provided a method of treatment of a continuous length of corrugated board to facilitate subsequent handling, according to which the board is perforated in lines across its width at regular intervals along the length of the board, and the perforated board is folded in zig-zag manner to form a flat pack of interconnected equally sized pieces ready for subsequent use by tearing along the perforated lines.
Preferably the perforated board is zig-zag folded into a box subsequently to be closed by a lid having a slot through which the upper piece of the flat pack may be withdrawn.
Thus, according to another aspect of the invention, there is provided a flat pack of zig-zag folded equally sized pieces of corrugated board, the pieces being folded along interconnected lines of perforations.
A further feature of the invention concerns the combination of a flat pack as aforesaid with a box in which the pack is stored, the box having a slotted top wall through which the uppermost piece of the stack is withdrawable. In this connection, it will be appreciated that if the uppermost piece always protrudes ready for use, the act of withdrawing it and tearing it from the next following sheet along the line of perforations will automatically cause the next following sheet to protrude ready for use.
According to still another aspect of the invention, there is provided a machine for the manufacture of corrugated
board, which includes a work station for handling a conventionally produced continuous length of board and at which the board is perforated in lines across its width at regular intervals along its length, and is then folded in zig-zag manner to form a flat pack of equally sized interconnected pieces.
Moreover, the invention extends to a machine for re- handling corrugated board which has been wound onto a supply reel thereof, and reforming the supply reel into one or more flat packs as aforesaid.
Description of Embodiments
The invention is exemplified in the following description, making reference to the accompanying drawings, in which:
Figure 1 is a diagrammatic view of a machine for manufacturing single face corrugated board;
Figure 2 shows a perforated roller assembly in diagrammatic manner;
Figure 2A shows a detail from Figure 2; and
Figure 3 shows a package of single faced corrugated boar
Referring back to Figure 1, the manufactured board 10 is conventionally, as previously mentioned, wound into a reel for storage, transport and subsequent usage.
Preceding an assembly (not shown) at which the board is wound, a cutting assembly is provided to cut the supply from the machine when a reel of desired size has been
wound, whereafter winding of the next reel is commenced.
In accordance with the present invention, the cutting assembly may or may not be retained, but in any case, as shown in Figure 2, the manufactured board 10 passes to a perforating assembly 30, used in place of or in addition to the cutting assembly.
The perforating assembly comprises a pair of similar perforating rollers 32 between which the board is passed so that, in accordance with the circumferential size of the rollers, the board is perforated across its width at spaced intervals along its length. Figure 2A shows the detail of a perforating blade 34 which is let into the upper of the two rollers 32 to form the perforations.
The actual pitch of the perforations is determined by a variable speed mechanism, usually called a variable P.R.V. box, which governs the speed at which the shafts revolve relative to the speed at which the corrugated board is produced.
On emergence from the perforating assembly 30, the supply of perforated board is folded in zig-zag fashion, either automatically or manually, to form a flat pack (see Figure 3) of individual pieces of board 40, all of equal size, and which are inter-connected along the lines of perforations 42. Preferably, as also shown in Figure 3, the pack is formed into a protective box 44, with the leading piece of board protruding from a slot 46 in the top of the box, so that it can readily be pulled out, torn off, and used for a wrapping purpose, as required. It will be appreciated that pulling out the leading piece of board and tearing it off will then leave the next piece
protruding from the box ready for use.
The original cutting assembly may be retained to cut the supply of manufactured board when a pack of required size has been formed, but alternatively the perforated supply may simply be torn from the supply when a pack has been completed.
The drawings illustrate the processing of single face corrugated board. However, the present invention is clearly also applicable to the treatment of double face corrugated board.
Although there is no restriction on the dimensions of the individual pieces forming the pack, because pieces of any desired size can be made by use of starting materials of a required width and appropriate design of the perforating assembly, it is intended that an initial standard size of 650mm by 500mm be offered to potential users as this would be appropriate for the majority of wrapping purposes for which single or double face corrugated board is used. Conveniently, therefore, manufactured board of 650mm width may be perforated at 500mm intervals.
Various modifications of the above described and illustrated arrangement are possible within the scope of the invention.
Claims
1. A method of treatment of a continuous length of corrugated board to facilitate subsequent handling, according to which the board is perforated in lines across its width at regular intervals along the length of the board, and the perforated board is folded in zig-zag manner to form a flat pack of interconnected equally sized pieces ready for subsequent use by tearing along the perforated lines.
2. A method according to Claim 1, wherein the corrugated board is single face corrugated board.
3. A method according to Claim 1 or Claim 2, wherein the corrugated board is perforated at 500 mm intervals along its length.
4. A flat pack of zig-zag folded equally sized pieces of corrugated board, the pieces being folded along interconnected lines of perforations.
5. A flat pack according to Claim 4, wherein the pieces of corrugated board are of dimensions 650 mm by 500 mm.
6. A flat pack according to Claim 4 or Claim 5, in combination with a box in which the pack is stored, the box having a slotted top wall through which the uppermost piece of the stack is withdrawable.
7. A machine for the manufacture of corrugated board, which includes a work station for handling a conventionally produced continuous length of board and at which the board is perforated in lines across its width at regular intervals along its length, and is then folded in zig-zag manner to form a flat pack of equally sized interconnected pieces.
8. A machine for re-handling corrugated board, which board has been wound onto a supply reel thereof, and for reforming the supply reel into one or more flat packs as claimed in Claim 4 or Claim 5.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898908525A GB8908525D0 (en) | 1989-04-14 | 1989-04-14 | Single face corrugated board |
GB8908525.2 | 1989-04-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990012748A1 true WO1990012748A1 (en) | 1990-11-01 |
Family
ID=10655078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1989/001210 WO1990012748A1 (en) | 1989-04-14 | 1989-10-12 | Corrugated board treatment method and machine |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU4404789A (en) |
GB (2) | GB8908525D0 (en) |
WO (1) | WO1990012748A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2739549A4 (en) * | 2011-08-01 | 2015-05-06 | Corcel Ip Ltd | Improvements in and relating to corrugated board and the manufacture thereof |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3120383A (en) * | 1962-03-05 | 1964-02-04 | Vanant Company Inc | Machine for folding and packing a sheet of cushioning material |
FR2059369A5 (en) * | 1969-08-29 | 1971-05-28 | Edkvist Ake | |
GB1261192A (en) * | 1968-03-28 | 1972-01-26 | Formmaster Ltd | Improvements in apparatus for creasing webs |
GB1479299A (en) * | 1973-08-03 | 1977-07-13 | Bunzl & Biach Ag | Method for producing stacked packs of zig-zag inter-folded paper tissues and device for implementation of the metho |
DE3437351A1 (en) * | 1983-10-18 | 1985-04-25 | Papierfabrik Laakirchen AG, Laakirchen | Film packaging for paper handkerchiefs |
EP0163091A1 (en) * | 1984-04-16 | 1985-12-04 | AB Tetra Pak | Device for packaging objects |
EP0169692A2 (en) * | 1984-07-18 | 1986-01-29 | The Wiggins Teape Group Limited | A carton |
DE3213895C2 (en) * | 1982-04-15 | 1986-12-18 | Bielomatik Leuze Gmbh + Co, 7442 Neuffen | Device for zigzag folding of paper webs or the like. |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3120895A (en) * | 1962-03-13 | 1964-02-11 | Miracle Rod Corp | Drapery accessory and combination of traverse rod therewith |
-
1989
- 1989-04-14 GB GB898908525A patent/GB8908525D0/en active Pending
- 1989-10-12 AU AU44047/89A patent/AU4404789A/en not_active Abandoned
- 1989-10-12 WO PCT/GB1989/001210 patent/WO1990012748A1/en unknown
-
1991
- 1991-09-18 GB GB9119953A patent/GB2249083A/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3120383A (en) * | 1962-03-05 | 1964-02-04 | Vanant Company Inc | Machine for folding and packing a sheet of cushioning material |
GB1261192A (en) * | 1968-03-28 | 1972-01-26 | Formmaster Ltd | Improvements in apparatus for creasing webs |
FR2059369A5 (en) * | 1969-08-29 | 1971-05-28 | Edkvist Ake | |
GB1479299A (en) * | 1973-08-03 | 1977-07-13 | Bunzl & Biach Ag | Method for producing stacked packs of zig-zag inter-folded paper tissues and device for implementation of the metho |
DE3213895C2 (en) * | 1982-04-15 | 1986-12-18 | Bielomatik Leuze Gmbh + Co, 7442 Neuffen | Device for zigzag folding of paper webs or the like. |
DE3437351A1 (en) * | 1983-10-18 | 1985-04-25 | Papierfabrik Laakirchen AG, Laakirchen | Film packaging for paper handkerchiefs |
EP0163091A1 (en) * | 1984-04-16 | 1985-12-04 | AB Tetra Pak | Device for packaging objects |
EP0169692A2 (en) * | 1984-07-18 | 1986-01-29 | The Wiggins Teape Group Limited | A carton |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2739549A4 (en) * | 2011-08-01 | 2015-05-06 | Corcel Ip Ltd | Improvements in and relating to corrugated board and the manufacture thereof |
Also Published As
Publication number | Publication date |
---|---|
GB8908525D0 (en) | 1989-06-01 |
GB9119953D0 (en) | 1992-01-02 |
AU4404789A (en) | 1990-11-16 |
GB2249083A (en) | 1992-04-29 |
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