WO2006035211A2 - Appareil et procede de formation de recipients et d'ebauches de recipients - Google Patents
Appareil et procede de formation de recipients et d'ebauches de recipients Download PDFInfo
- Publication number
- WO2006035211A2 WO2006035211A2 PCT/GB2005/003703 GB2005003703W WO2006035211A2 WO 2006035211 A2 WO2006035211 A2 WO 2006035211A2 GB 2005003703 W GB2005003703 W GB 2005003703W WO 2006035211 A2 WO2006035211 A2 WO 2006035211A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- blank
- forming
- web
- station
- Prior art date
Links
Classifications
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- 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
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/60—Uniting opposed surfaces or edges; Taping
- B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
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- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/44—Integral, inserted or attached portions forming internal or external fittings
- B65D5/50—Internal supporting or protecting elements for contents
- B65D5/5028—Elements formed separately from the container body
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- 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
- B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
- B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
- B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
- B65B53/063—Tunnels
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- 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
- B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
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- 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
- B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
- B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
- B31B2105/0024—Making boxes having all side walls attached to the bottom
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- 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
- B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
- B31B2120/408—Construction of rigid or semi-rigid containers lined or internally reinforced by folding a sheet or blank around an inner tubular liner
Definitions
- the present invention relates to an apparatus for and method of forming containers for use in packaging articles, particularly the packaging of irregular shaped articles or multiple flat articles, such as books or video cassettes and disks such as LP records, CDs, CD-ROMs and DVDs packed together in a container.
- the invention is directed particularly to the use of standard retail sale case and rolled, slotted and creased or similar containers (hereinafter referred to as a standard retail container or RSC container).
- the invention further relates to a container blank and an apparatus and method of forming the blank.
- the invention yet further relates to a container package (that is, including packaged articles) constructed using the apparatus, method and/or blank of the invention.
- the invention most particularly relates to the method and apparatus used to form and handle a container blank and to shape the blank into a package for constraining at least one article therein for dispatch or storage.
- the invention particularly relates to an apparatus for and method of modifying container blanks made of card or similar material, the blanks being modified to include an article retaining means to secure articles therein and prevent damage- causing movement within the container formed from the blank. Additionally, the invention relates to a container forming machine which takes container blanks having an article retaining means and forms packaging containers for irregularly shaped or particularly heavy articles, such as machine parts, and articles having a relatively large surface area as compared to the associated thickness or depth thereof, such as books, video cassettes and discs of various formats. These articles need to be held securely within the container to prevent damage thereof during transit. A method of forming containers is also disclosed.
- the invention may be applied to any three-dimensional object locatable within the container and is not limited to similarly shaped articles such as books and video cassettes.
- the article can damage the container and, exceptionally, be lost or injure a package handler.
- a fundamental requirement of any method of goods transportation is that the goods are not damaged during transport so that they reach their destinations in a non-damaged state.
- Containers formed from blanks made of card and cardboard and other materials suitable for dispatch through the postal services are well known in the prior art.
- the containers are formed from a relatively simple blank having side walls separated by fold lines and one or more base and lid portions connected to one or more of the side walls by corresponding fold lines.
- an end tab of one side wall is secured to an edge portion of another side wall and the or each base portion is folded and secured to form an open-mouthed container.
- the or each lid portion is folded and secured.
- the means of securing the portions to form the container is normally selected from gluing or stapling.
- the invention is directed to overcoming some of the established disadvantages associated with prior art containers, particularly those realising a container which is adapted for encapsulating or otherwise securing one or more articles within the container to prevent damage due to movement within the container during transit to its destination.
- the container and container blank disclosed in GB 2 343 885 is not suitable for machine forming into a container. While there is significant demand for containers which are manually formed (particularly for low volume operation), high volume dispatch centres or drop-shippers, for example, require fully automated systems. The advantages of machine forming of a container from a blank will be apparent to the skilled addressee.
- container blanks are usually formed using a die-cutting technique which includes stamping of fold lines.
- a range of standard retail sales case are formed using large knife bearing rollers into which cardboard material is fed to be "rolled, slotted and creased" to form container blanks.
- the blanks are then introduced to a folding station where a container is formed.
- the open-mouthed container is then filled and sealed for dispatch.
- the article(s) to be packaged is/are placed onto a blank and passed to a sealing station where the container is formed around the article(s) and sealed using hot-melt glue.
- the present invention provides a container or container blank comprising:
- each wall portion being connected to a base portion at a fold line and at least one opposed pair of walls being provide with a lid section;
- At least one portion having attached thereto a web of material adapted to retain an article within the container or a container formed from the blank, wherein the material web is secured to the at least one portion using adhesive applied in a direction consistent with the direct along which tension is applied to retain an article within the container.
- each side wall portion has inner and outer sections, separated by a fold land, the sections being adapted for folding about the fold land to assume a position overlying one another, the outer section including locking means engagable in the base portion to secure said overlying position;
- the front and rear wall portions each have a riser section and a lid section.
- each wall portion has a base portion and lid section attached thereto at fold lines and is connected to at least one adjacent wall portion at a fold line disposed perpendicularly to the base or lid fold lines.
- the material web is secured to the at least one portion using adhesive applied in a direction consistent with the direction in which the web is applied.
- the adhesive is selected from hot melt glue, cold-seal contact adhesive, double-sided adhesive tape or like material.
- the material adapted to retain an article within the container or container formed from the blank is a shrink- wrappable material.
- the material adapted to retain an article within the container or container formed from the blank includes an adhesive coated section having an adhesive material adapted to adhere substantially exclusively to like coated sections.
- the material web includes at least one adhesive coated section to which a removable liner is applied.
- the material web includes a release coat.
- At least the side, front and rear wall portions are so sized and shaped as to be machine foldable.
- the container or container blank is cut from a card material having a nape oriented to add to the strength of the container or container formed from the blank.
- the web is applied discontinuously.
- This construction utilises a plurality of discrete lengths or patches of article retaining material positioned on a container blank so as to secure effectively articles for dispatch placed in a container formed from the blank.
- the present invention further provides an apparatus for forming a container blank of the type having an article retaining means thereon, the apparatus comprising:
- the apparatus includes a pressure applying means for bonding the web material to the inner surface of the blank.
- the means for dispensing a supply of blanks comprises a support table having a vacuum operated picker mechanism which individually selects a blank from the base of a magazine of blanks and introduces the blank to an adhesive application station.
- the table includes a blank edge support means for retaining the blanks within the magazine, the picker mechanism engaging the base portion of the selected blank and deflecting it to disengage said edge support means.
- the means for dispensing a supply of blanks comprises a means for conveying a stack of blanks to a vacuum operated picker mechanism which is adapted to select individually the trailing edge region of a blank and introduce the leading edge thereof to an adhesive application station.
- the vacuum picker mechanism is mounted on a carriage adapted for parallel movement with respect to the direction of travel of the blanks, whereby successive blanks are peeled from underlying blanks in a stack of blanks.
- the means for dispensing a supply of blanks comprises a pair of lift tables mounted on a carriage adapted for lateral movement with respect to the direction of travel of blanks within the apparatus, the dispensing means including a vacuum operated picker mechanism which individually selects a blank from the top of a magazine of blanks and introduces the blank to an adhesive application station.
- the means for applying adhesive comprises a plurality of nozzles for applying at least one strip of a flowable adhesive to an inner surface of the blank.
- the means for applying adhesive comprises a tape dispenser for applying double-sided adhesive tape to a length of said web or to the inner surface of said blank.
- the cutting means defines first and second lengths of web material adhered to the blank.
- the conveying means includes a forming station adapted to fold the blank into a profile suitable for stacking or as an intermediate container forming stage.
- the forming station includes as adhesive application station.
- the forming station includes a stapling means.
- the present invention yet further provides a method for forming a container blank of the type having an article retaining portion thereon, the method comprising:
- the method includes applying pressure to the inner surface of the blank to bond the web material thereto.
- first and second lengths of web are cut and adhered to the blank.
- the or each strip of adhesive is applied to the web of retaining material.
- the or each strip of adhesive is applied to the inner surface of the blank via a plurality of nozzles.
- the present invention further provides an apparatus for forming a container from a container blank of the type having an article retaining portion thereon, the apparatus comprising:
- a feeding station for dispensing onto a feed conveyor a substantially continuous supply of container blanks, each blank having a length of web material adhered thereto and having a plurality of foldable sections so shaped and sized as to form a container;
- a container forming station having at least one actuator member to abut or grip a portion of the container blank so as to cause sections of the blank to move about pre-formed score lines so that the blank assumes the form of an open- mouthed container.
- the at least one actuator member abuts the inner surface of the base portion of the container blank and forces the blank into a container-forming die, the die being so formed and shaped as to cause sections of the blank to fold about pre-formed score lines.
- the at least one actuator member is a vacuum operated mechanism adapted to open a folded container blank so as to facilitate forming of a container base from a plurality of base portions, whereupon the blank assumes the form of an open-mouthed container.
- the apparatus includes any one or more of: at least one packing station where one or more articles are placed into the open mouth of the formed container;
- manipulator means bring one end of the web material into position to overlie the other end and adhere the overlying sections together;
- lid closing station where the lid portions are brought together in overlying relationship to seal the lid closed
- a dispatch conveyor which carries the container through final stages or to storage.
- the feeding station comprises an apparatus for forming a container blank as disclosed hereinabove.
- a shrink-wrapping station where heat is applied to the overlying ends of shrink- wrappable web material so that the or each article placed in the container at the packing station is secured therein.
- pressure- sensitive adhesive is pre-applied to at least one of the lid portions to facilitate sealing of the container at the lid closing station.
- the lid closing station comprises at least one tape dispenser to seal the container.
- the lid closing station includes means for securing the base portions of the container.
- the feeding station comprises a pivotable destacking arm adapted to individually select a blank from magazine of vertically stacked blanks.
- the feeding station comprises a pair of lift tables mouiited on a carriage adapted for lateral movement with respect to the direction of travel of blanks within the apparatus, the dispensing means including a vacuum operated picker mechanism which individually selects a blank from the top of a magazine of blanks and introduces the blank to an adhesive application station.
- the present invention further provides a method of forming a container from a container blank of the type having an article retaining portion thereon, the method comprising:
- the method includes abutting the inner surface of the base portion of the container blank and forcing the blank into a container-forming die, the die being so formed and shaped as to cause sections of the blank to fold about pre-formed score lines.
- the method includes opening a folded container blank by gripping a surface thereof with a vacuum operated actuator mechanism, forming a container base from a plurality of base portions thereby forming an open-mouthed container.
- the method includes one or more steps selected from:
- the method includes applying heat to the overlying ends of the material so as to secure the or each article placed in the container.
- pressure-sensitive adhesive is pre-applied to at least one of the lid portions to facilitate sealing of the container at the lid closing station.
- the method includes dispensing and applying adhesive tape to secure the or each lid portion and/or the or each base portion.
- the present invention yet further provides an apparatus for feeding open-mouthed containers via a packing station to a sealing and closing station in preparation for dispatch or storage of the packaged articles, the apparatus comprising:
- feeding means for conveying open-mouthed containers onto a buffer conveyor
- a stacking conveyor comprising at least one intake conveyor fed by the buffer conveyor;
- a discharge conveyor for transporting filled containers from a packing station
- a heating zone is provided for applying heat to a shrink-wrap retaining means within the containers to secure the contents therein.
- the invention yet further provides a method of feeding open-mouthed containers via a packing station to a sealing and closing station in preparation for dispatch or storage of the packaged articles, the method comprising:
- the method includes applying heat to a shrink-wrappable retaining means within the container to secure the contents therein.
- the method includes removing lining or backing material from the retaining material to expose adhesive thereon and tensioning said material to secure the contents of the container therein.
- Figure Ia is a plan view of a prior art container blank suitable for packaging articles by manually folding sections of the blank about an article to form a container therefore;
- Figures Ib and Ic are top plan views of a container formed from the prior art blank of Figure 1 illustrating the fixing of a plastics material web or sheet thereto and the resultant tension or distribution of the holding forces applied to the article constrained within the container;
- Figure 2a is a plan view of a first container blank in accordance with the invention, the container being both manually and machine foldable;
- Figures 2b and 2c are top plan views of a container formed from the blank of Figure 2a illustrating the fixing of a plastics material web or sheet thereto and the resultant tension or distribution of the holding forces applied to the article constrained within the container;
- Figure 3 a is a plan view of an apparatus for applying the plastics material sheet to the pre-formed blank of Figure 2a;
- Figure 3b is a side elevation of the apparatus of Figure 3 a having a first arrangement of blank feeding mechanism for metering one blank at a time into the apparatus;
- Figure 3 c is a side elevation of the apparatus of Figure 3 a having a second arrangement of blank feeding mechanism
- Figure 3d is a first arrangement of blank feeding mechanism comprising a support table for metering blanks to the lining apparatus;
- Figures 3e(i) to 3e(v) are end elevations on Arrow X of Figure 3 c, showing the second arrangement of blank feeding mechanism;
- Figure 4 is a schematic side elevation of a container forming apparatus;
- Figure 5 is a series of twelve views or vignettes illustrating the initial introduction of the sequential steps of forming a container, including the introduction of subsequent blanks;
- Figure 6a and 6b are side elevations of the process steps of forming a container from a blank using an alternative arrangement of container forming apparatus;
- Figures 6c(i) to 6c(v) are end elevations on Arrow X of Figure 6a, showing an arrangement of blank feeding mechanism, similar to that shown in Figures 3e(i) to 3e(v);
- Figure 7 is a schematic plan view of a filling and packing apparatus
- Figures 8a to 8c are a plan view, a side elevation and an end elevation of a heat chamber for shrink-wrapping the articles within the containers;
- Figures 9a and 9b are top plan views of two arrangements of a second embodiment of container blank in accordance with the invention, illustrating the fixing of article retaining material webs thereto;
- Figure 9c is a plan view of an apparatus for forming a container blank of Figure 9b by applying lengths of material web to successive ones of a stack of profiled blank stock;
- Figure 10a to 10c are a plan view, a side elevation; and an end elevation of an arrangement of blank feeding mechanism for metering successive blanks into the apparatus;
- Figures 11a and l ib are a schematic perspective view and a schematic side elevation of the apparatus for forming the container blank of Figure 9b;
- Figure 12 is a series of eight views or vignettes illustrating the sequential steps involved in conveying first and second lengths of article retaining material to a container blank;
- Figure 13 is a schematic perspective view of the apparatus of Figure 9c having a discharge conveyor which includes additional forming or folding stations.
- downstream should be regarded with respect to the drawings only and relate to the processing and conveyance of a blank and container formed from the blank as it moves through the apparatus.
- upstream represents the source of raw material or a yet-to-be-processed container blank and “downstream” towards the accumulation point for storage or dispatch.
- side walls and "end walls” are used conveniently to describe pairs of opposed walls and should not be considered as limiting. Certain portions or tabs are also described in a similar fashion, again only to assist the reader.
- FIG. 1 a prior art arrangement of container blank 1, as disclosed in United Kingdom Patent No. 2 343 885, is shown.
- the blank 1 is cut from craft card and includes a central land that forms the base 2 of a container formed from the blank.
- the central land or base 2 is defined by base fold lines 3,4,5,6.
- Riser fold lines 3A,4A,5A,6A are formed in the blank to run parallel to but spaced from the fold lines 3,4,5,6, respectively, to define end and side walls 3B,5B;4B,6B which in turn define the depth of the container to be formed by the blank.
- an over-tab fold line 3D,5D is formed in the blank running parallel to the riser fold line 3A,5A.
- the distance between the riser fold lines and over-tab fold lines fold lines 3D,5D is effectively twice the thickness of that of the card material from which the blank is formed, for reasons to be mentioned hereinafter.
- the dimensions of the blank are such that the portion thereof extending outwardly of the over-tab fold lines 3D,5D define tuck-in flaps 7, each having short rectangular extensions 7A,7B that are formed to engage corresponding receiving slots 8A,8B disposed in the base 2 immediately adjacent the end wall base fold lines 3,5.
- a removable push-out portion 9 is disposed centrally along the outer edge of each end wall 3B,5B such that the push-out portion 9 includes a substantially rectangular part 9A that bridges the space between the riser fold line 3A,5A and the over-tab fold lines 3D,5D and a semicircular part 9B opening into the end wall itself 3B,5B.
- End corner regions 7C of the tuck-in flaps 7 are angled to facilitate folding of the blank during the container forming process.
- each end thereof is provided with a tuck-in flap 4C,6C having the same height dimension as the side walls 4B,6B which define the depth of the container to be formed from the blank.
- the tuck-in flaps 4C,6C are foldable over the end-flap fold lines 4D,6D to be positioned adjacent the inner face of the end walls 3B,5B. Consequently, the tuck-in flaps must be, in its longest dimension, slightly less than half of the width (long dimension) of the end walls 3 B, 5 B but sufficiently long to provide structural support for the container thus formed without encroaching on the area adjacent to the push-out portion 9.
- the tuck-in flap 4C,6C are parallel components that enhance the overall strength of the finished container. At least one of the free corners of the tuck-in flaps 4C,6C is tapered to facilitate easier folding.
- a first lid forming portion 10 extends from one side wall 6B and is connected thereto via the side wall riser fold line 6 A.
- Each end of the first lid portion 10 includes a fold-in flap 1OB foldable around a lid-flap fold line 1OC.
- a corner of the fold-in flap 1OB is shaped to facilitate the manual folding or "tucking-in" of the lid end flap 1OB.
- the width of the first lid portion that is. the distance between the fold-in flap lines 1OC, is less than the distance between the adjacent side wall end-flap fold lines 6D. This is to allow the lid flaps 1OB to fold inside the end wall tuck-in flaps7 when an open-mouthed container is formed.
- a second lid portion 11 extends from the other side wall 4B by way of the corresponding riser fold line 4A. This lid forming portion 11 is deeper than the first lid forming portion 10 so that the second lid portion 11 partially overlies the first lid portion 10 when folded over the open-mouthed container when formed.
- each end of the second lid portion 11 includes a pair of tuck-in flaps 1 IB that are foldable about lid-flap fold lines 11C that align with the inner long edge of the rectangular slot 8 A in the base 2.
- Each end of the second lid part 11 also includes a second tuck-in flap 1 ID which folds about a fold line 1 IE. These second flap fold lines 1 IE fold outside the lid flap fold lines
- the second tuck-in flaps HD engage the aperture defined by the rectangular part 9A of the removable push-out portions 9.
- the two flaps 1 IB and 1 ID are shaped to facilitate the actual tucking-in process.
- the side walls 4B,6B are folded through 90° at the base fold lines 4,6 into an upright position relative to the base 2.
- the side wall tuck-in flaps 4C,6C are folded in at a right angle relative to the associated side wall 4B.6B and to align with the other base fold lines 3,5.
- the end walls 3B,5B are folded to the vertical position relative to the base 2 and the associated outer flap parts 7 are folded inwards firstly over the corresponding riser fold lines 3A,5A and subsequently over the over-tab fold lines 3D,5D to form a sandwich of the side wall tuck-in flaps 4C.6C between the inner surfaces of the end walls 3B,5B and their corresponding tuck-in flaps 7.
- the semicircular part 9B of the aperture formed by the removal of the push-out portion 9 lies externally of the thus formed end wall.
- the tuck-in flap extensions 7 AJB are then pushed into engagement with the corresponding receiver slots 8A,8B. This thus defines the form of the open-mouthed container.
- the lid tuck-in flaps 1OB, HB are folded to a position perpendicular to their respective lid portions 10,11.
- the shorter tuck-in flaps HD of the second lid portion 11 are turned to the positions in which they are able to engage the rectangular part 9 A of the removable push-out portion 9.
- the lid portion 10 is then folded along the side wall riser fold line 6A to overlie the base part 2 and the tuck-in flaps 1OB of the lid 10 are positioned to lie against the now inwardly facing surface of the end wall tuck-in flaps 7.
- the second lid portion 11 is subsequently folded along its riser fold line 4A to overlie the open-mouthed container and a proportion of the first lid portion 10.
- the tuck-in flaps 1 IB of the second lid portion 11 are also positioned adjacent the exposed surface of the end wall tuck-in flaps 7 and the shorter tuck-in flaps 1 ID of the lid 11 are engaged in the rectangular aperture 9A.
- the article to be packed (not shown) is required to be placed at a required location within the thus formed container, the location usually being symmetrically positioned within the dimensions of the base. After such a placement, the blank is folded in the manner discussed around the previously positioned article.
- the size of the article is such that it effectively fills the container the article when in the container is not likely to move about within the container during prior transit. If, however, the article is smaller than the interior of the container it follows that the article would be at least relatively free to displace within the container and thus be prone to possible damage of the article or exceptionally the container during transit. Damage to the container is most likely to occur with heavier objects, such as machine parts.
- the container forming blank 1 with an auxiliary/inner packaging for the article that is adapted to restrain the article against movement after it is placed at the requires location upon the container base.
- the auxiliary packaging is effectively automatically brought into its displacement restraining condition.
- the article retaining means which comprises a flexible lining material secured to the base 2 of the blank 1.
- a sheet or film 12 of lining material is attached to the base 2 by two lines of adhesive 13 applied as continuous lines adjacent the side wall base fold lines 4,6. It will be appreciated by the skilled addressee that the adhesive may be applied as broken lines or over an extended area of the base 2 depending on the attachment strength required.
- the lining material sheet 12 is large enough to overlie the lid forming portions 10,11 as indicated by the film flaps 14,15 of Figure Ib.
- FIG. 1c schematically illustrates a container of the invention in an open- mouthed configuration in which one or more articles have been constrained using the lining material 12.
- the lining material covers the base 2 of the container with enough length to overlap each end thereof so as to allow the free ends of the film to be stuck together.
- Tension lines 17 indicate the restraining mechanism of the film 12. If thought convenient, lines of adhesive are provided around the four sides of the base 2 to hold the lining 12.
- a first embodiment of machine-foldable blank 100 of the present invention will now be described with reference to Figures 2a to 2c.
- like portions of the machine foldable blank 100 will be described with numerals common to those used with respect to the prior art blank 1.
- the blank 100 is cut from craft card and includes a central land that forms the base 2 of the container formed from the blank 100.
- the base 2 is defined by fold lines 3,4,5,6 and riser fold lines 3A,4A,5A,6A are formed in the blank 100 to run parallel to but spaced from the base fold lines 3,4,5,6, respectively, to define end and side walls 3B,5B;4B,6B which in turn define the depth of the container to be formed by the blank 100.
- an over-tab fold line 3D,5D is formed in the blank running parallel to the riser fold line 3A,5A, the distance between the riser fold lines 3A,5A and the over-tab fold lines 3D,5D being effectively twice the thickness of the card material from which the blank 100 is cut, for the same reasons as described with respect to the prior art blank 1.
- the end walls 3B,5B of the blank 100 include tuck-in flaps 7 extending outwardly of the over-tab fold lines 3D,5D.
- the tuck-in flaps 7 each have short profiled extensions 7A,7B which are formed to engage corresponding receiver slots 8A,8B disposed in the base 2 immediately adjacent the end wall base fold lines 3,5.
- the length of the over tab fold lines 3D,5D are marginally shorter than the adjacent riser fold lines 3A.5A so that a bevelled edge is formed to facilitate smooth and rapid machine folding.
- the extensions 7A,7B are profiled to facilitate smooth and rapid machine registration of the tabs 7A,7B into their corresponding receivers 8A 3 8B.
- the modified profiles obviate the requirement to profile the distal corners of the tuck-in flaps 7.
- the square corners of the flaps 7 provide additional rigidity and strength to the container thus formed and facilitates machine forming.
- end wall riser fold lines 3A,5A are formed using deeper and/or larger perforations than those of the corresponding over-tab fold lines 3D,5D to ensure that the riser fold lines 3A,5A fold before the over-tab fold lines 3D,5D. This is important not only to facilitate the correct formation of the container but also to correctly position the extension tabs 7A,7B for engagement into the corresponding receivers 8A,8B.
- the perforations forming the over-tab fold lines 3D,5D extend 50% of the corresponding number, length or depth (as appropriate) of the perforations forming the end wall riser fold lines 3 A,5A.
- each end thereof is provided with a tuck-in flap 4C,6C having substantially the same height dimension as the side walls 4B,6B which defines the depth of the container to be formed by the blank 100.
- the tuck-in flaps 4C,6C are foldable over end flap fold lines 4D,6D to be positioned adjacent the inner face of the end walls 3B,5B. Consequently, the tuck-in flaps 4C,6C must be, in their longest dimension, slightly less than half of the width (long dimension) of the end walls 3B,5B and provide significant structural integrity for the end walls. At least one of the free corners of the tuck-in flaps 4C,6C is rounded to facilitate machine folding.
- a first lid forming portion 10 extends from one side wall 6B and is connected thereto via the corresponding riser fold lines 6A.
- Each end of the first lid forming portion 10 includes a fold-in flap 1 OB foldable around a lid flap fold line 1OC.
- the fold-in lid flaps 1OB are profiled so that machine folding is facilitated.
- a first leading side edge 1OE of each lid flap 1OB is bevelled to provide a straight edge which presents a parallel even edge to the formed end walls 3B,7;5B,7 as the first lid portion 10 is folded towards the now open-mouthed container.
- a trailing edge 1OF of each lid flap 1OB has a rounded profile corresponding to the arc transcribed by the lid portion 10 as it is closed over said open-mouthed container.
- the depth of the first lid portion 10 is from the riser fold line 6 A to a free edge 1OG of the lid potion 10, the edge 1OG essentially comprising the leading edge of the blank 100.
- a registration shape 12 cut into the free edge 1OG for positioning the blank within a forming machine.
- a corresponding registration shape 12 may be formed on a trailing edge HE of a second lid portion 11. The registration shape assists with the automatic handling of blanks and allows leading edge or trailing edge sensor registration.
- the second lid portion 11 extends from the opposite side wall 4B to that of the first lid portion 10, by way of a corresponding riser fold line 4A. This lid portion 11 is wider, from the riser fold line to the trailing edge HG, than the first lid portion 10 so the second lid portion 11 partially overlies the first lid portion 10 when folded onto the open-mouthed container.
- the second lid portion 11 includes a pair of tuck-in flaps 1 IB that are foldable about lid flap fold lines 11C.
- the leading edge HE of each lid flap 1 IB is bevelled and rounded to assure smooth machine folding.
- Adjacent the trailing edge HG of the lid 11, bevelled end portions HF are formed to ensure that the glued-down trailing edge HG does not present any corners or portions which could be snagged or pulled when the container is closed.
- the blank 100 further includes a heat shrinkable lining material 12 which is attached to the base 2, at least.
- Figures 2b and 2c illustrate the layout and use of the lining material or film 12 in conjunction with a machine foldable blank 100.
- the lines of adhesive extend from the side wall base fold lines 4,6 towards the central longitudinal axis of the base 2 of the blank 100.
- the number and position of the adhesive lines 13 is selected according to the use to which the container is to be put.
- the glue may be applied continuously and at high speed.
- the momentum of the blank as it is processed need not be interrupted.
- the glue in this orientation the shrink wrapping of articles within the container is enhanced as the film/lines can pull together between the glue lines to give a better grip on the articles contained.
- two lines of adhesive are used to fix the central portion of the film to the blank 100.
- Two flaps 14,15 of the material or film 12 are adapted to be folded over the contents of the container, however, during assembly of the blank and transport thereof, the flaps 14,15 are retained in position by one or more "glue spots" 13a applied to the underside of the Hd portions 10,11.
- the blank can be machine folded to form an open-mouthed container without risk of the film being dislodged or trapped by folding portions during the container forming process or during automated or manually filling the container.
- the flaps can easily be torn away from the lid portions 10,11 when required to cover or overlie the contents of the container.
- Figure 2c shows particularly the advantages of using a plurality of glue lines 13 to retain articles 16 within the container formed by the blank 100.
- the flaps 14,15 are pulled away from the glue spots 13a on the lid portions 10,11 and laid one end over the other. Heat is applied, usually via a hot air stream or within a heat chamber, and the heat-shrinkable material film 12 draws in around the or each article 16.
- a plurality of tension lines are formed between the article(s) and the adhesive lines 13 to retain the article(s) in place.
- FIG. 3a and 3b a first arrangement of apparatus 20 for forming blanks of the type having an article retaining means 12 thereon is shown. Simply put, a stack of cut blanks 100 as described hereinabove are passed through the apparatus 20 which applies a sheet of lining material 12 thereto to form the lined blank of the invention.
- the blank liner apparatus is controlled via a central microprocessor-based controller unit (not shown).
- the liner apparatus 20 comprises a first arrangement of blank feeding mechanism 22 comprising a magazine adapted to receive plain blanks cut to the required specification.
- the mechanism as is described in more detail hereinbelow, is provided at the upstream end of the liner apparatus 20 and includes a vacuum circuit 24 and optionally a mechanical pusher 25 to introduce blanks individually to an adhesive applicator, in this case, a glue application station 26.
- Gripper or nip rollers 28 are used to guide the blank between top and bottom feed belts 29 which carry the blank past glue applicator guns 30 at which time hot melt glue is selectively applied to the blanks.
- the hot melt glue is applied by four glue guns 30 fed via heated hoses 31 from a hot melt glue storage tank 32 under microprocessor control.
- the hot melt adhesive is applied to the blank by a reciprocating compressed air position pump to generate pressure and solenoid operated applicator guns 30 to open the pressure circuit to atmosphere, thereby accurately firing the adhesive onto the board at points controlled by the central control unit in accordance with the requirements determined by the shape and design of the blank 100.
- the blank is then fed to the liner application station 35 where shrink-wrap material 36 is applied to the blank.
- the material is fed to the application station 35 from a film drive system 37.
- the shrink-wrap material 36 is provided as a film web from a reel 38 mounted for rotation on a gravity axis 39 positioned towards the downstream end of the apparatus. As a first reel 38 of the material is depleted, the gravity axis 39 moves to activate a splicing mechanism of the type well appreciated in the art.
- An accumulator comprising a dancing arm roller 40 ensures that film is provided to the apparatus during splicing so that an uninterrupted supply is achieved.
- the film web is fed via a series of support rollers 42 through a non-return gripper 43 to a pressure roller arrangement 45 which adheres the film 36 to the blank 100 and applies pressure to spread the glue between the blank and the liner 12 of film material 36.
- a film web cutter 46 has a transverse cutter which operates "on the fly” and cuts using a cold blade protected within a slotted anvil.
- the web material is applied to the blank in two separate sections, whereby at least a central region of the base remains uncovered by the material.
- the operation of the cutter defines the length and position of the web applied to the blank.
- the base has no web material applied thereto and lengths of web material are adhered only to the end walls.
- a transfer conveyor 47 moves the blank with liner 12 towards a pair of speeder pinch belts 49 which accelerate the blank and liner onto a collating table 50.
- a discharge transfer mechanism 51 moves the accumulated stack of blanks to an ejector table 52, which comprises a conveyor 53 disposed at 90° to the direction of travel of the blanks through the apparatus 20.
- Figure 3 c illustrates a second arrangement of apparatus for forming blanks which features an alternative arrangement of blank feeding mechanism 70 but in all other respects is identical to the apparatus of Figures 3a and 3b.
- FIG. 3d is a perspective elevation of the first arrangement of blank feeding mechanism 60 provided at the upstream end of the lining apparatus 20.
- the mechanism comprises a support table 61 having a pair of adjustable side plates 62, each having an inwardly facing blank edge engagement portion 63.
- An end plate 65 is provided to square the stack of blanks into a magazine feed.
- On the underside of the table 61 an upwardly facing vacuum operated suction cup 66 is provided on a pair of rails 67 along which the cup is free to move.
- the suction cup 66 is brought upwardly into contact with a blank 100 from the base of the stack. The vacuum is switched ON and the cup 66 engages the blank.
- the cup is then moved downwardly, deflecting the centre of the blank so that the edges thereof are pulled from the blank edge engagement portions of the side plates 62.
- the individual blank is then presented to the lining apparatus 20 by the movement of the cup 66 along the rails 67.
- Gripper rollers 28 of the lining apparatus 20 then take the blank as the vacuum to the cup 66 is released.
- the suction cup assembly then moves back along the rails 67 to its central position, ready to select the next blank.
- the second arrangement of blank feeding mechanism 70 comprises a pair of lift tables A 5 B positioned side by side on a wheeled shuttle carrier 72. From start-up, a first lift table A is loaded with a stack of blanks 100 in a first side position. The shuttle carrier 72 is then moved so that the centre of the first table A aligns with a vacuum picker mechanism 75. Individual blanks are fed into the machine using the picker mechanism 75 which comprises a vacuum pump 76 and a picker arm 75 having an array of suction cups 77 thereon. The vacuum is presented at the suction cups 77 via a series of flexible hoses 78 and associated couplings with valves controlled by a sub-controller unit in communication with the central microprocessor controller.
- the vacuum pump 76 is run continuously -and the vacuum at the suction cups 77 is switched ON and OFF according to the required action and/or the position of the picker arm with respect to the machine.
- the picker arm 15 moves to engage the upper surface of the top blank in the stack.
- the vacuum is switched to the suction cups which grip the blank.
- a pressure differential switch in the vacuum circuit will register whether the cups have obtained an adequate grip to lift the board from the stack.
- the picker arm 75 is then moved back to a central, position with the blank and subsequently is extended to carry the blank in a downstream direction, placing the leading edge 1OG of the blank 100 between a pair of rotating nip rollers 28 which carry the blank into the lining apparatus 20.
- a valve switches to remove the vacuum pressure from the suction cups 77 thereby releasing the board.
- the picker arm 75 then returns towards the central position until the trailing edge 1 IG of the blank passes a sensor which via the controller signals the picker arm 75 to engage another blank from the stack.
- the next blank is fed to the nip rollers 28 as before with a relatively small gap (say 50mm) between the trailing edge 1 IG of one blank and the leading edge 1OG of the subsequent blank.
- the first lift table A elevates to supply a continuous feed of blanks to the picker arm.
- a support mechanism comprising edge support plates 79 moves under the remaining blanks and the first lift table A is withdrawn.
- a second lift table B has been fully loaded with blanks and is ready to replace the position occupied by the first table A.
- the shuttle carrier 72 is signalled to move the second table B towards the central position to align with the picker mechanism 75 as the first table A is lowered and is made ready to receive a subsequent load of blanks.
- the picker arm 75 continues to take blanks from the support mechanism plates 79.
- the stack on the second table B is aligned with the picker mechanism 75, the blanks remaining on the support plates are dropped onto the top of the stack as the support plates are withdrawn.
- This stack is then raised by the lift table B so that the uppermost blank is in the appropriate position to be engaged by the picker arm.
- the support plates 79 again engage the underside edges of the last blank remaining in the stack when the level reaches a preset amount. This means the machine can be run continuously without stoppage to maximise productivity rates.
- Figure 4 is an overview of a container forming apparatus 120 in which a magazine of lined container blanks 100 are stacked vertically on a conveyor 122.
- a destacking arm 123 mounted for rotation about a pivot 124, includes suction cups
- the container forming apparatus 120 includes a vacuum circuit, elements of which will be described in more detail hereinafter, which is powered via a continuously operated pump and switched to and from air cylinders and suction cups via valves operated under microprocessor control.
- the container forming apparatus 120 further includes a static folding die 135 having peripheral edge portions 136 adapted to deflect elements of a container blank sequentially to facilitate the formation of a container in conjunction with the forming tools 127,128.
- the folding die 135 includes suction cups 138 to engage the base 2 of a container being formed so that the container is not inadvertently withdrawn from the die 135 with the primary forming tool 127 when it is retracted.
- Air cylinders 139 are positioned on opposite sides of the folding die to urge elements of the container blank to urge elements of the container blanks inwardly so that they may be engaged during the downward stroke of one of the forming tools 127,128.
- the carriage arm 130 provides a rail along which the primary and secondary forming tools 127,129 move.
- Wheeled coupling arrangements 140 are attached to a tool carrying support member 142 to which the forming tools 127,128 are secured a fixed distance apart.
- the tools are fixed to the support member 142 by telescopic cylinders 145 which are pneumatically operated in this embodiment.
- the primary forming tool 127 includes blank engaging suction cups 147 attached to the vacuum circuit via the support member
- a discharge conveyor 150 Adjacent the folding die 135, and spaced therefrom a distance equal to the distance separating the primary and secondary forming tools, 127,128, there is provided a discharge conveyor 150 for transporting open-mouthed containers to a filling station or to storage.
- the destacking arm 123 includes a series of suction cups 125 which attach to the front (unlined) surface of the leading one of a magazine loaded with lined container blanks 100.
- the front surface of the blank once folded becomes the outer surface of the container thus formed.
- the magazine has a predetermined capacity but operationally is replenished to provide a continuous supply of vertically stacked blanks to the destacking arm 123.
- Frame 1 a first blank is selected by the destacking arm 123 when the arm moves from a horizontal rest position about its pivot 124 to the front surface of the leading board in the magazine. A vacuum is switched to the suction cups 125 which engage the blank and separate it from the magazine stack. The blank is carried with the arm as it pivots towards its horizontal rest position.
- Frame 2 the primary and secondary forming tools 127,128 move together on the support member 142 as it is driven along the carriage arm 130 and the primary forming tool 127 is lowered to abut the now horizontal blank, as supported by the destacking arm.
- the suction cups 147on the base of the primary forming tool 127 engage the inner lined side of the blank at the base 2 and the vacuum is switched OFF at the destacking arm suction cups 125 and ON at the tool suction cups 147.
- the blank is then lifted by the primary forming tool suction cups 147 and the support member 142 moves the primary forming tool 127 towards a precise position over the container folding die 135.
- the destacking arm 123 rotates about the pivot 124 from its horizontal rest position towards the new leading (second) blank in the magazine.
- the primary forming tool 127 lowers the first blank towards the folding die 135 and "stuffs" the blank into the die.
- the side wall tuck-in flaps 4C,6C are deflected to a substantially vertical position; the longer side wall base fold lines 4.6 are deflected substantially vertically, which has the effect of moving the tuck-in flaps 4C,6C into position adjacent the shorter end wall base fold lines 3,5; and the end wall base fold lines 3, 5 are deflected, hereby forming an open- mouthed cuboid shape.
- the support member 142 When the new blank is in a horizontal position, as shown in Frame 7, the support member 142 is moved along the carriage arm 130 so that the primary forming tool 127 is disposed over the region of the blank due to form the base 2 of the next container and the secondary forming tool 128 is disposed over the folding die 135 containing the open-mouthed cuboid shape of the preceding blank.
- the folding die air cylinders 139 (one pair on each side) push pistons to fold the tuck-in flap positions of each end wall 3B,5B over the lighter riser fold lines 3A,5A (thereby ensuring that the fold occurs at the riser fold lines 3A,5A in advance of any folding along the over-tab fold lines 3D,5D).
- the pistons retain the flap portions 7 in a substantially horizontal position. It should be noted that the pistons are disposed towards the edges of the flap portions 7 so as not to impede the secondary forming tool 128 when it descends into the folding die.
- Frame 8 shows the primary forming tool engaging the subsequent blank, as supported by the destacking arm, as the secondary forming tool is forced into the folding die.
- the secondary forming tool 128 folds the tuck-in flap portions 7 into the open-mouthed cuboid shape of the container and the air cylinders 148 within the secondary forming tool 128 include pistons which force the tuck-in flap positions 7 against the side wall tuck-in flaps 4C,6C. This pushes the short rectangular extensions 7A,7B of each flap portion 7 into the corresponding receiver slots 8A,8B disposed in the base 2 immediately adjacent the end wall base fold lines 3,5.
- the pistons of the air cylinders 148 within the secondary forming tool 128 include spikes at their free ends so that by engaging the material of the newly formed open-mouthed container, the container is withdrawn from the folding die when the secondary forming tool 128 is retracted therefrom, as illustrated in Frame 9. This action occurs concurrently with the lifting of the subsequent blank from the destacking arm 123 by the primary forming tool 127.
- the primary forming tool "stuffs" a blank into the folding die 135, commencing the folding step as before, and, as shown in Frame 11, the secondary forming tool 127 places the open-mouthed container onto the discharge conveyor 150.
- the pistons of the air cylinders 148 within the secondary forming tool 128 are withdrawn so that the spikes at the ends thereof disengage the material of the container.
- a new blank is grabbed by the suction cups 125 of the destacking a ⁇ n 123.
- the primary and secondary tools are withdrawn from their respective partially formed and fully formed open-mouthed containers.
- the containers thus formed are conveyed by the discharge conveyor 150 either to storage or, more conveniently, to a filling and sealing machine.
- the lid portions are conveyed by the discharge conveyor 150 either to storage or, more conveniently, to a filling and sealing machine.
- the forming apparatus 160 includes a static folding die 135 and primary and secondary forming tools 127.128 for engagement therewith.
- the forming tools are spaced apart on a support member 142 moveable along a carriage arm 130 and moveable vertically by means of telescopic cylinders 145, as before.
- the magazine for feeding lined blanks 100 to the forming apparatus comprises a stack of blanks mounted on support tables A 5 B 5 similar to the arrangement described in detail in Figures 3e(i) to 3e(v). As the operation and loading of the tables is so similar to that previously described, no further detail appears necessary here.
- the sequential steps to forming a container are unchanged with the omission of the destacking arm thereof.
- Figure 7 illustrates a filling and closing station 170 for containers of the type disclosed herein.
- tow container forming apparatus 120 are the first forming a smaller size container relative to the larger container formed by the second apparatus.
- the open-mouthed containers are fed from their respective discharge conveyors 150 to a buffer conveyor 172 which in turn places containers in a two level accumulator 175 adjacent a plurality of packing tables 178.
- the containers are manually removed from the accumulator 175 and packed with the contents and the flaps 14,15 of the liner material 12 are torn from the glue spots 13a attaching them to the lid portions 10,11 to be laid over one another over the contents 16 of the container.
- a label indicating the destination of the contents is then adhered to a side wall or a lid portion of the container and the filled container is placed onto a discharge conveyor disposed beneath the accumulator 175.
- the discharge conveyor includes a zoned region 180 terminated with a drop gate 181.
- Containers are metered through the gage 181 to a transfer zone 182 from which they are fed through a "shrink tunnel" 184 comprising a heating chamber as detailed hereinbelow with reference to Figures 8a to 8c.
- Heat applied to the exposed liner material 12 overlying the contents 16 of the container causes the material 12 to shrink around the contents 16 creating the tension lines 17 in the material as referred to in Figure 2c.
- the contents are now restrained within the container which is passed through a visual inspection station 186 for lid closure, sealing and dispatch.
- lid closure and sealing is automated using well established techniques, including taping, for example.
- the zoned region 180 of the discharge conveyor includes a drop gate 181 which is moved by a lid opener mechanism.
- a container passed through the gate 181 is fed onto a further conveyor 190 by a pusher mechanism 191 to effect a 90° transfer onto said conveyor 190 which transports the open-mouthed container and contents through the heat chamber 187.
- a fan 193 blows heated air directly down into the container and expelled air is recirculated back towards the fan 193 for reheating.
- the heat chamber 187 runs at approximately 175 C with low dwell time to ensure no damage to the contents for dispatch.
- the shrink-wrappable web material web may be substitute by different materials which can be bonded together to secure the contents of the container therein.
- Materials having selectively applied adhesives or materials having characteristics which enable the free ends thereof to adhere to one another with sufficient strength to achieve the desired results may also be used.
- Such material may be used to obviate the heat chamber, thereby reducing the overall size and energy requirements of a packaging plant or facilitating packaging of customers purchases or articles for dispatch at a retail outlet.
- the article retaining web comprises a material adapted to adhere substantially exclusively to itself.
- Such material is provided with a liner applied to one side (to prevent it sticking to itself in a reel) but can be handled by standard non-coated machine feeders, rollers and other components and stock.
- the liner is removed (normally from the entire length of web material) and the articles are placed into the container and onto the newly exposed surface of the material web.
- the articles will not adhere to the material, however, when the ends of the material are brought together, they stick firmly to one another.
- the material web ends may then be manually "scrunched" together to apply adhesive pressure to the web but more particularly to provide tension in the web to retain the articles securely in the container during transit.
- Material web as described above is exemplified by the material webs or films available from Milprint, Inc. (Oshkosh, Wisconsin 54904, United States of America).
- machine forming of the blank facilitates fast and efficient forming of the open-mouthed containers for subsequent reception of materials. It will be further appreciated that by adapting the magazine, the folding tools and the folding die, other blanks which have been modified for machine folding may also be considered.
- FIG. 9a there is shown two arrangements of a second embodiment of container or container blank formed from substantially standard blank stock of the well-known RSC type container and similar type containers which are modified to include an article retaining film or web thereon.
- the first arrangement of container blank 200 as illustrated in Figure 9a, has four side walls 201,202,203,204 and a securing flap 205, which is normally folded around fold line 205a from the final side wall 204 to inside the first side wall 201 and glued or stapled thereto.
- Base portions 211,212,213,214 are attached to their respective side walls via fold lines 201A,202A,203A,204A and lid or top portions 221,222,223,224 are attached to their respective side walls via further fold lines 201B,202B,203B,204B.
- the RSC style container blank 200 includes a web or film 230 which extends at least over the side walls 201,202,203,204, over at least a portion of the base portions 211,212,213,214 and over substantially all of the lid portions 221.222,223,224.
- the web or film 230 is adhered to the base portions by glue lines 232 positioned so as to ensure mechanical entrapment of the web 230 when the base portions 211,212,213,214 of the container are folded.
- Glue spots 233 are provided to adhere the web 230 to the top or lid portions to prevent the web falling into the container during formation and during conveying or loading. Additionally, the glue spots 233 prevent the web 230 from becoming entangled in the container forming apparatus. Before the container is closed, the web is mechanically separated from the lid positions to overlie the contents of the container. Where the web 230 is a heat-shrinkable film, heat is applied directly or indirectly to the web to shrink-wrap the contents in place to attenuate potentially damaging movement of the contents during freight or further conveying, for example.
- the first arrangement of RSC style or like container blank is formed using substantially the same techniques and apparatus (once modified to accommodate the blank stock) as used for the first embodiment of container blank 100 described hereinabove.
- the RSC style container differs is in forming the container from the blank.
- FIG. 9b a second arrangement of container blank 300, exemplified here in Figure 9b by a standard RSC type container blank to which lengths of a material web have been applied.
- the container blank comprises four side walls 301,302,303,304 and a securing flap 305, which is normally folded around fold line 305a from the final side wall 304 inside the first side wall 301 and glued or stapled thereto.
- Base portions 311,312,313,314 are attached to their respective side walls via fold lines 301A,302A,303A,304A and lid or top portions
- the container blank 300 includes first and second lengths of article retaining material web or film 330 extending over two side walls 301,303, over at least a portion of the respective base portions 311,313 and lid portions 321,323. In the illustrated embodiment, the entire area of the relevant base portions 311,313 are covered, as will be explained with reference to the apparatus for and method of forming container blanks described hereinbelow.
- the lengths of web or film 330 are adhered to the base portions by glue lines 332 positioned so as to ensure mechanical entrapment of the web 330 when the base portions 311,312,313,314 are folded.
- Glue spots 333 are provided to adhere the web 330 to the top or Hd portions to prevent the web falling into the container during formation and during conveying or loading. Additionally, the glue spots 333 prevent the web 330 from becoming entangled in the container forming apparatus. Before the container is closed, the web is mechanically separated from the lid positions to overlie the contents of the container.
- FIG. 9c an apparatus 350 for forming container blanks 300 of the type shown in Figure 9b having an article retaining web 330 thereon is shown.
- a stack of pre-formed blank stock S is introduced to a blank feeding mechanism 360, which is described in more detail with reference to Figures 10a to 10c, and the apparatus 350 applies sheets of the web material 330 to the blank stock to form the lined blank 300 of the invention.
- the lined blanks 300 are then transferred to a discharge conveyor to be dispatched for storage or to be introduced to further processing stations where additional steps are conducted, such as forming into an intermediate container stage or folded for storage.
- the discharge conveyor 390 includes an adhesive applicator 391 and folding and forming stages.
- the lined container blanks 300 are then discharged to an accumulated stack of said blanks.
- the liner apparatus 350 is fed successive blanks from the blank feed mechanism 360 which is positioned to introduce blank stock S to gripper or nip rollers 351 which feed a board past an adhesive application station 352 along a support conveyor to an end stop 353 which locates the board blank at a lining or film application station.
- hot melt glue is selectively applied by a pair of glue guns.
- a pair of adhesive tape dispensers is provided.
- a knife cuts the material and the lined blank 300 is fed to a conveyor end stop 357.
- the blank is then pushed laterally by a pusher mechanism onto the discharge conveyor 390, optionally past another glue applicator gun 391 or to a folding station, stapling mechanism or each of the above.
- the independent blank stock feeding mechanism 360 is provided at the upstream end of the lining apparatus 350.
- the mechanism comprises a feed conveyor 361 onto which a stack of blank stock is positioned against a datum surface 362 (shown in Figure 9c).
- the stack is then conveyed to a support arrangement where a picker mechanism 365 feeds individual ones of the blanks towards the nip rollers 351 of the liner apparatus
- the picker mechanism 365 includes a vacuum operated series of suction cups 366 mounted on a moving carriage 367 and operates by engaging the suction cups 366 to the trailing edge region of a board blank and lifting it sufficiently to break any suction between the selected uppermost board blank and the succeeding one below.
- the carriage then moves the selected board in the processing direction and feeds the leading edge of the board blank between the nip rollers 351.
- the vacuum is released from the suction cups 366 and the carriage returns to its initial position to repeat the cycle for the succeeding board.
- the lining apparatus 350 of the invention includes a lining station where a board is located against the end stop 353 on a support conveyor 359.
- a pair of vacuum tables 370 are provided to retain in position the article retaining film or lining material 330 which has been drawn from the reels 355.
- the vacuum platens 356 are movable along a horizontal carriage shaft 372 so that the platens can move over the vacuum tables 370 to grip the material web 330 and convey it towards the blank.
- the vacuum is switched ON in the platens and OFF in the tables so that the web is now securely held by the platens.
- each vacuum platen moves along the or each shaft 372, drawing the web material over the board blank and drawing further material from the reels 355 onto the vacuum tables.
- each vacuum platen is pressed down against the board by an actuation 373 so the web adheres to the board.
- a knife 374 which is disposed on the trailing edge of each platen 356 operationally drops into a slotted anvil 375 located adjacent to the conveyor 359 to cut the required length of material.
- the vacuum on the tables 370 is switched ON to secured the new film material drawn thereon.
- the vacuum in each platen 356 is then switched OFF and the platens move back to their positions overlying the vacuum tables.
- the end stop 353 drops to allow the lined container blank 300 to be conveyed towards the conveyor end stop 357.
- At least one sensor 377 and reflector 378 is used to verify the position of the component parts to a microprocessor control unit.
- the material reels 355 and dancing arm 379 arrangements are differently configured and this is to allow for dispensing web material having an exposed adhesive coating where one reel feeds the web with the adhesive coating facing upwardly and the other reel feeds the web with the adhesive coating disposed downwardly. This is particularly useful when using a linerless web material having an adhesive coating on one side and a release coating on the opposite side of a web, particularly when utilising an adhesive material adapted to adhere only to itself.
- Each of the vacuum platens 356 and tables 370 comprise an array of apertures through which the vacuum is applied.
- the array includes switchable sections so that the vacuum may be selectively applied.
- This arrangement allows the platens and the tables to be configured for different widths of material web and different lengths of material to be applied to the board. In this way, a range of sizes and configurations of lined container blank may be formed.
- a simpler and less expensive alternative is to provide masks to cover over the non-applicable areas of the tables and platens. It will be appreciated that the maximum width of board that can be handled is determined by the width of the support conveyor 359 and the length of the web material to be applied thereto. The length of web material or film applied to the board is determined by the length of the vacuum platens 356.
- each assembly comprising reel holder and dancing arm 379, vacuum platen 356, table 370, carriage 372 and actuator 373 is independent of the other and this facilitates their relative movement for using the apparatus with different material web and board sizes.
- the assemblies may be mounted on rails and each one may be removed independently for service and/or repair.
- Frame 1 a board blank is in the exact position for film placement with the edge of the board aligned with the cutting path of the knife 374.
- the vacuum platen is conveyed along its carriage shaft 372 to overlie a portion of the vacuum table 356 to which the film is held, as shown in Frame 2.
- the length of material web is set by the position of the sensor reflector 378 on the vacuum platen and is arranged to coincide with the width of the board.
- Frame 3 the platen is lowered by the actuator 373 to abut the film lying on the table.
- the vacuum to the table has been removed, that is, switched OFF to release the film, and the vacuum has been switched ON in the platen.
- the actuator lifts the platen with the material web attached, as illustrated in Frame 4 and moves along the carriage 372 to overlie the board, drawing new lining material from the reel 355 and dancing arm 379 arrangement onto the table, as shown in Frame 5.
- the platen is lowered onto the board by the actuator 373 which applies sufficient downward pressure to ensure the film is bonded to the adhesive applied to the board.
- the vacuum is switched OFF at the platen, to release the material web lining the container blank, and switched ON at the table to secure the newly introduced material.
- the knife 374 is then moved into its slotted anvil 375, slicing the film in line with the edge of the board, as shown in Frame 7.
- the platen is withdrawn to the position shown in Frame 8.
- the stop 353 is withdrawn and the lined container blank 300 is discharged as a new board blank is introduced to complete the lining cycle.
- the discharge conveyor 290 is disposed at the end of the support conveyor 359 of the lining apparatus 350.
- This discharge conveyor includes one or more additional stations to either fold the container blank 300 for convenient storage or to fold the container blank into an intermediate container form.
- a trailing wall portion 304 of the blank has a fixing tab 305 attached thereto.
- the opposite end wall portion 301 of the blank has a strip of adhesive applied thereto by an adhesive applicator, in this case, a hot-melt gun.
- a folding actuator (not shown), folds the trailing wall portion 304 and its associated lid portion 324 and base portion 314 to overlie its attached adjacent wall portion 303.
- the opposite wall portion 301 is also folded and it is positioned to overlie the fixing tab 305 so that the adhesive strip is aligned therewith. Pressure is applied to that region, for example, by a pressure roller to ensure adhesion. For larger containers, staples may be added along that region to reinforce the bond.
- the container blank 300 whether folded or in intermediate container form is then discharged for storage, further forming into open-mouthed containers or may be conveyed for packaging articles.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Container Filling Or Packaging Operations (AREA)
- Packaging For Recording Disks (AREA)
- Cartons (AREA)
- Buffer Packaging (AREA)
- Packages (AREA)
Abstract
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05789598A EP1814791A2 (fr) | 2004-09-27 | 2005-09-27 | Appareil et procede de formation de recipients et d'ebauches de recipients |
CA2593025A CA2593025C (fr) | 2004-09-27 | 2005-09-27 | Appareil et procede de formation de recipients et d'ebauches de recipients |
MX2007003674A MX2007003674A (es) | 2004-09-27 | 2005-09-27 | Aparato y metodo para formar recipientes y preformas de recipientes. |
KR1020127031322A KR20130004390A (ko) | 2004-09-27 | 2005-09-27 | 내용물 유지 웨브가 부착된 컨테이너 블랭크 및 컨테이너 블랭크로부터 형성된 컨테이너 |
US11/664,069 US20080142407A1 (en) | 2004-09-27 | 2005-09-27 | Apparatus for and Method of Forming Containers and Container Blank Having Content Retaining Web Attached Thereto |
JP2007532970A JP2008514512A (ja) | 2004-09-27 | 2005-09-27 | 容器および容器ブランクの形成装置および形成方法 |
AU2005288744A AU2005288744A1 (en) | 2004-09-27 | 2005-09-27 | Apparatus for and method of forming containers and container blank having content retaining web attached thereto |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0421388A GB2418420A (en) | 2004-09-27 | 2004-09-27 | Containers and blanks having attached article retaining webs |
GB0421388.0 | 2004-09-27 | ||
GBPCT/GB2004/004935 | 2004-11-22 | ||
PCT/GB2004/004935 WO2006035190A1 (fr) | 2004-09-27 | 2004-11-22 | Appareil et procede de formation de contenants et decoupe de contenant presentant une bande continue de retenue de contenu fixee a cette derniere |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006035211A2 true WO2006035211A2 (fr) | 2006-04-06 |
WO2006035211A3 WO2006035211A3 (fr) | 2006-11-23 |
Family
ID=35632958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2005/003703 WO2006035211A2 (fr) | 2004-09-27 | 2005-09-27 | Appareil et procede de formation de recipients et d'ebauches de recipients |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1814791A2 (fr) |
JP (1) | JP2008514512A (fr) |
KR (1) | KR20070095284A (fr) |
AU (1) | AU2005288744A1 (fr) |
CA (1) | CA2593025C (fr) |
WO (1) | WO2006035211A2 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10987889B2 (en) | 2015-09-21 | 2021-04-27 | Westrock Shared Services, Llc | Methods and machine for forming a shipping container with an article retaining web |
WO2021144712A1 (fr) * | 2020-01-13 | 2021-07-22 | Vidroaplanos Sa | Dispositif d'emballage, procédé d'emballage et emballage pour cartes de communication visuelle |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7771335B2 (en) * | 2008-03-24 | 2010-08-10 | Goss International Americas, Inc. | Apparatus and method for cutting and folding printed products |
US9334092B2 (en) | 2014-06-24 | 2016-05-10 | Orora North America | Method of packaging a product for shipment and product-shipping package |
EP3081372A1 (fr) * | 2015-04-14 | 2016-10-19 | Mayr-Melnhof Karton AG | Dispositif et procédé de fabrication de boîtes pliantes |
KR102583367B1 (ko) * | 2022-10-24 | 2023-09-27 | 주식회사 제로패키지 | 핫멜트 접착형 접이식 박스 제조 장치 |
Citations (10)
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US4196563A (en) * | 1978-07-14 | 1980-04-08 | Menasha Corporation | Arrangement for filling a receptacle having self-contained closure means |
FR2506722A1 (fr) * | 1981-06-01 | 1982-12-03 | Socar | Emballage pour le conditionnement de lots d'objets et procedes de realisation d'un tel emballage et de conditionnement simultane des objets |
FR2625173A1 (fr) * | 1987-12-29 | 1989-06-30 | Socar | Emballage pour le conditionnement sous film plastique retractable d'au moins un objet |
FR2703656A1 (fr) * | 1993-04-05 | 1994-10-14 | Socar | Conditionnement en un matériau semi-rigide, équipé de deux feuilles d'une matière plastique rétractable, aptes à maintenir en position les objets conditionnés . |
EP0729828A2 (fr) * | 1995-02-28 | 1996-09-04 | Pussikeskus Oy | Procédé et dispositif de fabrication en continu de flans d'emballages |
US6066080A (en) * | 1997-06-26 | 2000-05-23 | Societe Cermex | Method and machine for automatically gluing a heat shrinkable plastic film onto the bottom of an open box |
GB2343885A (en) * | 1998-11-19 | 2000-05-24 | Alistair Fraser Moore | Packaging |
EP1348635A1 (fr) * | 2002-03-28 | 2003-10-01 | Société Anonyme dite SMURFIT-SOCAR | Flan pour la réalisation d'un conditionnement en un matériau semi-rigide, équipé sur une face d'un film en une matière thermorétractable |
US6672035B1 (en) * | 1998-11-12 | 2004-01-06 | Vkr Holding A/S | Method for shock-resistant packaging of a product and a plane cardboard blank for carrying out the method |
US20040162207A1 (en) * | 2002-09-23 | 2004-08-19 | Uhlmann Pac-Systeme Gmbh & Co. Kg | Apparatus for erecting flattened box blanks |
-
2005
- 2005-09-27 AU AU2005288744A patent/AU2005288744A1/en not_active Abandoned
- 2005-09-27 EP EP05789598A patent/EP1814791A2/fr not_active Ceased
- 2005-09-27 JP JP2007532970A patent/JP2008514512A/ja active Pending
- 2005-09-27 CA CA2593025A patent/CA2593025C/fr not_active Expired - Fee Related
- 2005-09-27 KR KR1020077009751A patent/KR20070095284A/ko not_active Application Discontinuation
- 2005-09-27 WO PCT/GB2005/003703 patent/WO2006035211A2/fr active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4196563A (en) * | 1978-07-14 | 1980-04-08 | Menasha Corporation | Arrangement for filling a receptacle having self-contained closure means |
FR2506722A1 (fr) * | 1981-06-01 | 1982-12-03 | Socar | Emballage pour le conditionnement de lots d'objets et procedes de realisation d'un tel emballage et de conditionnement simultane des objets |
FR2625173A1 (fr) * | 1987-12-29 | 1989-06-30 | Socar | Emballage pour le conditionnement sous film plastique retractable d'au moins un objet |
FR2703656A1 (fr) * | 1993-04-05 | 1994-10-14 | Socar | Conditionnement en un matériau semi-rigide, équipé de deux feuilles d'une matière plastique rétractable, aptes à maintenir en position les objets conditionnés . |
EP0729828A2 (fr) * | 1995-02-28 | 1996-09-04 | Pussikeskus Oy | Procédé et dispositif de fabrication en continu de flans d'emballages |
US6066080A (en) * | 1997-06-26 | 2000-05-23 | Societe Cermex | Method and machine for automatically gluing a heat shrinkable plastic film onto the bottom of an open box |
US6672035B1 (en) * | 1998-11-12 | 2004-01-06 | Vkr Holding A/S | Method for shock-resistant packaging of a product and a plane cardboard blank for carrying out the method |
GB2343885A (en) * | 1998-11-19 | 2000-05-24 | Alistair Fraser Moore | Packaging |
EP1348635A1 (fr) * | 2002-03-28 | 2003-10-01 | Société Anonyme dite SMURFIT-SOCAR | Flan pour la réalisation d'un conditionnement en un matériau semi-rigide, équipé sur une face d'un film en une matière thermorétractable |
US20040162207A1 (en) * | 2002-09-23 | 2004-08-19 | Uhlmann Pac-Systeme Gmbh & Co. Kg | Apparatus for erecting flattened box blanks |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10987889B2 (en) | 2015-09-21 | 2021-04-27 | Westrock Shared Services, Llc | Methods and machine for forming a shipping container with an article retaining web |
US11001026B2 (en) | 2015-09-21 | 2021-05-11 | Westrock Shared Services, Llc | Methods and machine for forming a shipping container with an article retaining web |
US11607858B2 (en) | 2015-09-21 | 2023-03-21 | Westrock Shared Services, Llc | Methods and machine for forming a shipping container with an article retaining web |
WO2021144712A1 (fr) * | 2020-01-13 | 2021-07-22 | Vidroaplanos Sa | Dispositif d'emballage, procédé d'emballage et emballage pour cartes de communication visuelle |
US20230054647A1 (en) * | 2020-01-13 | 2023-02-23 | Vidroaplanos Sa | Packaging device, packaging method and package for visual communication boards |
US12006077B2 (en) * | 2020-01-13 | 2024-06-11 | Vidroaplanos Sa | Packaging device, packaging method and package for visual communication boards |
Also Published As
Publication number | Publication date |
---|---|
CA2593025C (fr) | 2014-04-08 |
EP1814791A2 (fr) | 2007-08-08 |
AU2005288744A1 (en) | 2006-04-06 |
CA2593025A1 (fr) | 2006-04-06 |
JP2008514512A (ja) | 2008-05-08 |
KR20070095284A (ko) | 2007-09-28 |
WO2006035211A3 (fr) | 2006-11-23 |
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