Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
  • B05C1/02—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
  • B05C1/027—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles only at particular parts of the articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
  • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
  • B05C1/06—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length by rubbing contact, e.g. by brushes, by pads
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C7/00—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
• • 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
• • 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
  • B31B2120/402—Construction of rigid or semi-rigid containers lined or internally reinforced by applying a liner to already made boxes, e.g. opening or distending of the liner or the box
• • 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
  • B31B50/622—Applying glue on already formed boxes

Definitions

• the present invention relates to the general field of packaging; it relates more particularly to a new installation structure for the manufacture of a sealed tray constituted by the assembly of an outer casing, made of relatively rigid material, such as for example cardboard, and an inner lining consisting of a thermoformed plastic film that seals the tray.
• the outer casing is secured to the internal plastic film by the implementation of a sizing operation, the adhesive being applied on the inner face of said outer envelope by spraying or projection.
• this installation includes a sizing station comprising the following structural elements:
• At least one sizing member of the buffer type capable of being loaded with adhesive on at least a portion of its surface, and able to come into contact with the zone or areas to be glued to the outer envelope of the container, for removing the glue
• the sizing member consists of a body made of elastic material, able to be deformed between a pattern of removal of the adhesive in which its surface or surfaces to be loaded with adhesive project in a single plane, and a sizing conformation in which the charged surface or surfaces glue are able to come into contact with the area or areas to be glued to the outer envelope.
• This particular structure allows the removal of glue in a simple manner inside the outer casing of the tray, just before the operation of setting up the inner plastic liner. But because of its structure and the different movements that it is to undergo, the glue pad may sometimes not properly separate from the outer envelope, after apposition of the glue. In addition, the buffer gluing zone is not always strictly located in the same place, because it does not control its deformation well; thus, the area of application of the glue on the outer cardboard envelope has certain variations.
• a tray whose body, formed of a bottom element associated with a sidewall belt, consists of an outer envelope in rigid or semi-rigid material, made for example of cardboard, lined internally with an attached waterproof plastic film, said plastic film being secured to said envelope by gluing on one or more areas to form the assembly area or areas between two materials, and - it comprises, in particular, a sizing station comprising at least one sizing member of the buffer type mounted on a support structure, this sizing member being adapted to come into contact with at least one part of the inner face of at least one of the side walls of said outer envelope, to form said sizing area.
• the sizing pad or pads consist of at least one block of porous material capable, on the one hand, of being loaded with adhesive by a diffusion phenomenon within said block of porous material, and of secondly, to deposit the adhesive by contact possibly associated with compression on said gluing area; in addition, this or these sizing pads are mounted on their support structure by means allowing their maneuver deployment and folding, between, on the one hand, an extended position, wherein said pad comes into contact with said sizing area for depositing the adhesive, and secondly, a folded position, wherein said sizing pad is remote from the outer envelope of said tray, in particular to allow the input and output movements of said outer shells, respectively in said sizing station and out of it.
• This installation has the particular advantage of ensuring a removal of glue always precisely in the same place on the inner face of the outer carton.
• the means allowing the maneuver in deployment and folding of the buffer or buffers ensure the displacement of the latter or these two end positions, one folded inwardly and the other deployed towards outside.
• the sizing means comprise at least two sizing pads, each capable of depositing glue on at least a portion of two of said walls side.
• the sizing pad or pads are each mounted on a support by means of a jack allowing the maneuvering of said one or more associated sizing pads between the deployed and folded positions mentioned above.
• the support structure of the sizing pads is in the form of a central support axis, vertical or substantially vertical, on which is articulated at least one deployable arm associated with maneuvering means, and whose free end carries a sizing pad, said operating means ensuring the displacement in deployment and folding of said arm or deployable arms relative to said central support axis.
• the deployable arm or arms cooperate with a slider maneuverable on the height of the central support shaft, moved by means of a control jack, the movements in translation of said slider ensuring the maneuvers in deployment and folding of said said deployable arms.
• this latter structure of the sizing station can be in a general pantograph configuration, namely:
• the deployable arm or arms are articulated at the lower end of the central support axis, the slide cooperating with the said deployable arm or arms via an intermediate arm whose one end is hinged to the said slider and whose other end is articulated on said associated deployable arm, at a point situated between its two ends, or the deployable arm or arms are articulated at one of their ends on the slide of the support shaft, one or intermediate operating arms being hinged on the one hand, at the end lower of the central axis support, and secondly, on one of the deployable arms, according to a point of articulation between its two ends.
• the glue supply means comprise at least one reservoir associated with a glue feed circuit to at least one of the porous material blocks, which feed circuit comprises means for flow control, particularly of the pump, solenoid valve and / or manual valve type.
• Figures 1A to " ID show, generally and schematically, the main steps implemented in a sizing station according to the invention for the manufacture of two-component trays;
• FIGS. 2A and 2B show, also schematically, the main steps for gluing an outer envelope within a gluing station whose buffers are carried by means of maneuver of the type cylinders;
• Figures 3A and 3B Figure 3) show, still schematically, the main steps implemented in a sizing station whose pads are carried by pantograph type of maneuvering means;
• FIGS. 1A to 1D show a few steps in the manufacture of a two-component tray within an installation according to the invention, namely the sizing of the internal face of the outer envelope and the setting place waterproof plastic film.
• the gluing method implemented here consists of a glue removal on one or more areas of the inner face of the outer envelope by a buffering operation, so as to apply the glue by simple contact.
• FIG "IA has the outer casing 1 of the suitably positioned tray in a gluing station 2 according to the invention.
• the outer casing 1 is made of suitable material, preferably cardboard (compact or corrugated, preferably recyclable cardboard type). It is composed in this case of a bottom wall 1 associated with a belt of peripheral side walls 1b slightly flared outwardly to form a generally pyramidal trunk.
• This casing 1 is made by placing in volume a cardboard blank suitably cut and grooved; it can also be obtained by molding a paper pulp, for example.
• the outer casing 1 may be made of a cellular plastic material; it can also be achieved by the combination of different materials, for example a mixed cardboard / wood unrolled.
• the nature and the thickness of the material constituting the outer casing 1 are chosen according to the dimensions of the tray and according to its destination.
• the sizing station 2 comprises a frame 3, vertically movable, carrying a central support structure 4 on which are mounted here two sizing members 5 via maneuvering means 6.
• the operating means 6 in question provide control of the associated sizing members 5, between outwardly deployed positions and folded inwardly.
• the buffers 5 are represented in the folded position and grouped together on the side of the central support structure 4.
• the sizing members 5 are buffers, able to come into contact with a portion of the inner face of the outer shell 1 (and in particular a portion of the side walls 1b), to each constitute a sizing area.
• the sizing pads 5 comprise a support body 5a, carried by the aforementioned operating means 6, provided with at least one block of porous material 5b (for example synthetic foam cellular type) capable of being loaded. in glue by a phenomenon of diffusion.
• This glue comes from loading means 7, here comprising an adhesive reservoir 7a associated with a supply circuit 7b (for example in the form of flexible tubes) comprising conventional flow control means 7c (for example pump-type, solenoid valve and / or manual valve).
• a supply circuit 7b for example in the form of flexible tubes
• conventional flow control means 7c for example pump-type, solenoid valve and / or manual valve.
• FIGS. 1B to 1JD detail the sizing operation of the outer casing 1 by the implementation of this sizing station 2 (FIGS. 1B and 1C_), then the assembly of the internal thermoplastic film ( Figure 1 D).
• the frame 3 of the gluing station 2 is maneuvered downwards, in the direction of the underlying outer casing 1. Simultaneously, or alternatively, when the frame 3 reaches its lower position. end of stroke, the operating means 6 are driven outwardly, so that its sizing pads 5 (foam impregnated with adhesive) come into contact with the side walls 1b opposite the outer casing 1 to deposit the adhesive by contact (possibly associated with a phenomenon of compression).
• the buffers 5 are extracted from the outer casing 1 so as to return to their initial position (FIG. 1C). For this, the buffers 5 are controlled in inverse motions of those implemented during the gluing (described above in relation to FIGS. 1A and 1B).
• the operating means 6 are driven inwards, so that the associated bonding pads 5 come into a folded end position, away from the side walls 1b of the outer casing 1 of the tray; in addition, the chassis 3 is driven according to an upward vertical movement, so as to extract the buffers 5 from the bulk of the outer casing 1.
• the adhesive is deposited in the form of lines or strips 10.
• the shape, the surface and the positioning of these bands or lines of adhesive 10 are a function of the desired connection structure between the envelope external 1 and the inner plastic film reported.
• the porous blocks 5b are shaped accordingly.
• the outer envelope 1 thus glued is removed from the gluing station 2, to be transported to the next station where the inner thermoplastic film 1 1 is reported, as shown schematically in Figure 1 D.
• the plastic film 1 1 can be directly thermoformed in the outer casing 1. It is for example set up by means of a thermoforming matrix (conventional in the field concerned). Alternatively, the plastic film 1 1 may be thermoformed beforehand, then reported in the outer casing 1.
• the porous blocks 5b of the buffers 5 are permanently reloaded with glue by the loading means 7, to allow the successive operations of sizing.
• the reservoir 7a feeds the system by gravity or by means of a pump; the flow of the glue is adjusted according to the needs while playing, if necessary, the diameter or the opening time of the supply valve, or the pressure supplied by the feed pump.
• the finished product obtained therefore consists of a tray comprising an outer casing 1 lined internally with a thermoformed plastic film 11; these two materials are assembled and held together with the other hand the bonding areas 10.
• the bonding areas consist of continuous or discontinuous lines or strips, formed only at the upper edges of the four side walls of the truncated pyramid belt of the tray, so as to allow easy separation of the outer casing 1 and its internal lining 1 1 after use, for recycling materials.
• the installation comprises means of simultaneous transport of a plurality of outer envelopes 1, juxtaposed with respect to each other; it also comprises a sizing station 2 whose chassis 3 is equipped with a suitable number of support assemblies 4 / pads 5, for the simultaneous application of the adhesive on said external envelopes 1 juxtaposed.
• this type of bonding by bonding makes it possible to apply the adhesive in a single operation, in a precise, fast and reliable manner on specific areas of the outer casing 1.
• the corresponding installation allows the application of the adhesive in a single operation.
• glues normally difficult to apply by spraying, for example acrylic glues.
• the use of such acrylic glues is particularly advantageous for their heat resistance characteristics, which makes it particularly possible, in the context of an application in the food industry, to cook or reheat food directly in the food industry. their packaging tray.
• the sizing means advantageously comprise two sizing pads 5, each capable of coming to deposit glue on two side walls vis-à-vis, or four buffers able to glue said four side walls.
• the support structure 4 may be equipped with an additional and accessory pad, able to come into contact with this bottom wall 1a, to also deposit the adhesive by buffering.
• FIGS. 2 to 4 show particular structures of the sizing station 2, in accordance with that described above with reference to FIG. 1, belonging to complete installations for manufacturing two-component trays (the loading means 7, which are identical to those described above, are not shown to simplify the description).
• FIGS. 2A and 2B show a first possible embodiment of the sizing station 2, its sizing pads 5 being each mounted on the support structure 4 by means of operating means 6 in the form of pneumatic cylinders 16 .
• These jacks 16 allow the maneuvering of the buffers 5 horizontally or substantially horizontally, between two end-of-travel positions: one folded towards the inside on the side of the support structure 4 (FIG. 2A), and
• FIGS. 3 and 3B and 4 show (in a schematic manner) buffers 5 mounted on their support structure 4 via pantograph-type operating means 6.
• the support structure 4 is in the general form of a central support axis, vertical or substantially vertical, on which are articulated deployable arms 17, the free end carries one of the bonding pad 5.
• These arms 17 are operable relative to the central support axis 4 between folded end positions ( Figures 3A and 4A) and deployed ( Figures 3B and 4B).
• a slider 18 is provided to move over the height of the central support axis 4, its movements in translation ensuring maneuvers deployment and folding of the arms 17; a pneumatic cylinder (not shown) is implanted so as to ensure the operation of the slide 18.
• the deployable arms 17 are articulated at the lower end of the central axis support 4, each around a horizontal or substantially horizontal axis (not shown) here parallel to the side wall 1b opposite to be glued.
• the slider 18 cooperates with each of the arms 17 via an intermediate arm 19, one end of which is articulated on said slider 18 and whose other end is articulated on the associated deployable arm 17, at a point located between its two ends.
• one end of the deployable arms 17 is articulated on the slider 18.
• the intermediate arms 19 are each articulated, on the one hand, at the end lower of the central support axis 4, and secondly, on one of the deployable arms 17, according to a point of articulation between the two ends.

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• Making Paper Articles (AREA)
• Cartons (AREA)
• Packages (AREA)
• Buffer Packaging (AREA)

Applications Claiming Priority (2)

Publications (2)

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ID=38169390

Family Applications (1)

Country Status (10)

Cited By (2)

Families Citing this family (2)

Family Cites Families (13)

• 2006
  • 2006-10-27 FR FR0609472A patent/FR2907709B1/fr not_active Expired - Fee Related
• 2007
  • 2007-10-26 AT AT07866498T patent/ATE463305T1/de not_active IP Right Cessation
  • 2007-10-26 AU AU2007316065A patent/AU2007316065B2/en not_active Ceased
  • 2007-10-26 WO PCT/FR2007/052254 patent/WO2008053114A2/fr active Application Filing
  • 2007-10-26 CA CA2667218A patent/CA2667218C/fr not_active Expired - Fee Related
  • 2007-10-26 ES ES07866498T patent/ES2343919T3/es active Active
  • 2007-10-26 US US12/447,390 patent/US8105224B2/en not_active Expired - Fee Related
  • 2007-10-26 DE DE602007005840T patent/DE602007005840D1/de active Active
  • 2007-10-26 JP JP2009533922A patent/JP2010507505A/ja active Pending
  • 2007-10-26 EP EP07866498A patent/EP2097177B1/de not_active Not-in-force

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