WO2012126521A1 - Procede pour le conditionnement de produits, notamment des portions de chocolat ou similaires, et equipement pour la mise en œuvre du procede - Google Patents
Procede pour le conditionnement de produits, notamment des portions de chocolat ou similaires, et equipement pour la mise en œuvre du procede Download PDFInfo
- Publication number
- WO2012126521A1 WO2012126521A1 PCT/EP2011/054449 EP2011054449W WO2012126521A1 WO 2012126521 A1 WO2012126521 A1 WO 2012126521A1 EP 2011054449 W EP2011054449 W EP 2011054449W WO 2012126521 A1 WO2012126521 A1 WO 2012126521A1
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- WIPO (PCT)
- Prior art keywords
- product
- revolver
- heat
- sealing
- folds
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/345—Progressively making the joint, e.g. starting from the middle
- B29C66/3452—Making complete joints by combining partial joints
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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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/004—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material in blanks, e.g. sheets precut and creased for folding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7879—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path
- B29C65/7882—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path said parts to be joined moving in a circular path
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/345—Progressively making the joint, e.g. starting from the middle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/431—Joining the articles to themselves
- B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
- B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8324—Joining or pressing tools pivoting around one axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/849—Packaging machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
- B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
- B29C66/91643—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile
- B29C66/91645—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile by steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
- B29C66/92441—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time
- B29C66/92443—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time following a pressure-time profile
- B29C66/92445—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being non-constant over time following a pressure-time profile by steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
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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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
- B65B11/38—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a combination of straight and curved paths
- B65B11/40—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a combination of straight and curved paths to fold the wrappers in tubular form about contents
- B65B11/42—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a combination of straight and curved paths to fold the wrappers in tubular form about contents and then to form closing folds of similar form at opposite ends of the tube
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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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
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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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/822—Transmission mechanisms
- B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
- B29C66/949—Measuring or controlling the joining process by measuring or controlling the time characterised by specific time values or ranges
Definitions
- the present invention relates to a method of packaging products, in particular a food product and in particular a portion of chocolate or the like, in a folded and sealed package, in which said product is brought onto a linear conveyor and interposed with sheet cut from a strip of heat-sealable packaging material on the path of said product.
- It also relates to a product packaging equipment, including a food product and in particular a portion of chocolate or the like, in a folded and sealed packaging for the implementation of the method of the invention.
- the packaging of products poses numerous problems related to the nature of the products, their fragility and their preservation.
- the packaging operation must be extremely fast, so that the packaging equipment must work at very high speeds, several hundred pieces per minute.
- foodstuffs have the characteristic of being fragile and of not being able to withstand high temperatures
- the placing of packaging materials must be carried out smoothly, smoothly and, in the case of sealed packages, the welds two or more sheets of packaging material must be made without direct contact with the products to avoid local overheating.
- the slightest aesthetic defect on the surface of the product is to be banned, which imposes particularly severe constraints on operators and equipment during packaging.
- a packaging process of this type is already known, according to which the products are conveyed linearly and inserted into a sheet of U-foldable heat-sealable packaging material to form two longitudinal flaps which will then be welded in a heat-sealing station arranged at the periphery of a rotating revolver type conveyor.
- Such a process as well as the equipment for carrying out this process are described in the European patent application published under No. 0 295 203 A1.
- This equipment is not adapted optimally to the packaging of small products and at very high rates, of the order of 600 pieces per minute, in particular because the sealing stations are designed respectively to heat the material of packaging disposed partially around the product and to cool this material to avoid local overheating of the product to be packaged and a marking thereof.
- This double action requires time and slows the rate of conditioning.
- the heating energy applied to the packaging is high, hence the need for cooling, which may damage the product and imposes constraints that complicate the equipment.
- the present invention aims at overcoming the drawbacks of the prior art by proposing a method and an equipment for carrying out sealing-tight, heat-sealed and fast sealing packaging by means of a sheet of heat-sealable material, this method allowing an action fast and efficient that preserves the quality and aesthetics of the product.
- the method as defined in the preamble is characterized in that said product and the sheet of heat-sealable packaging material are introduced simultaneously into a first rotary conveyor, called the first revolver, while folding this U-shaped sheet around of said product so as to form two flaps, said longitudinal, unequal lengths, adjacent to one side of the product, in that one brings said product and its packaging in this configuration to at least a first heat-sealing station in which the two shutters are welded to achieve a seal, said longitudinal seal and form a longitudinal flap along said side of the product, in that one transfers, at the output of said first revolver, said product and its sealed package longitudinally, in a folding box for forming lateral folds called folds of ends, in that said product is transferred into its sealed configuration; tudinalement and comprising folds of ends in a second rotary conveyor called second revolver, associated with at least two pairs of heat-sealing stations, in that the product is successively brought into each of said at least two pairs of heat-sealing
- the end folds of the product package are formed in a folding box which is interposed between said first and said second revolver.
- Said first revolver and said second revolver are advantageously driven in opposite directions from each other.
- said product and the sheet of heat-sealable material associated therewith are passed from an entrance zone into said first revolver, through a heat sealing station to seal said longitudinal edge into an exit zone of this first revolver for a time equal to that during which said product and the sheet of heat-sealable material associated therewith pass from an entrance zone into said second revolver, through three successive heat sealing stations to seal said folds of ends until in an exit zone of this second revolver.
- the folds of the ends and the longitudinal flap are folded at the outlet of the said second revolver and the packaged product is discharged after the gluing of said longitudinal shutter by means of a conveyor belt and a belt. support.
- the conveyor belt and the support belt are driven at a speed greater than that of an exit pusher of the second revolver.
- the equipment for carrying out the method as defined in the preamble is characterized in that it comprises first means arranged for simultaneously introducing said product and said sheet of heat-sealable packaging material into a first rotary conveyor, called first revolver, and to fold this U-shaped sheet around said product so as to form two flaps, said longitudinal, of unequal length, adjacent to one side of the product, at least one heat-sealing station arranged to weld the two flaps by realizing a sealing, said longitudinal sealing and forming a longitudinal flap along said side of the product, a folding box arranged to form lateral folds, called ends folds, disposed at the output of said first revolver, second means arranged to transfer said product in its longitudinally sealed configuration and having folds of tips in a second transp rotary actuator, called second revolver, at least two pairs of heat-sealing stations disposed at the perip
- said second revolver is associated with three heat sealing stations arranged one after the other and arranged to each perform a partial seal of the folds of ends of the same product.
- said folding box is interposed between said first and said second revolver, the output of said first revolver corresponding to the entry into the folding box and the exit of the folding box corresponding to the entry into the second revolver.
- Said first revolver may comprise six sets of grippers angularly separated by an angle of 60 °, the first set of grippers corresponding to an entry zone of the revolver, the second set to a holding and holding zone of the product with said thermoformable sheet, the third set at a heat seal station along the longitudinal edge of the product, the fourth set at an exit area of this first revolver, the fifth and sixth sets of pliers corresponding to empty return positions to said area input.
- Said second revolver may comprise eight cells angularly separated by an angle of 45 °, the first cell corresponding to an entry zone of the revolver, the second to a holding and holding zone of the product, the following three to three stations successive heat sealing to seal said ends folds, the sixth to an exit zone of the second revolver and the last two to empty return positions to said inlet zone.
- the output station comprises an axial displacement pusher whose function is to eject the product on a discharge conveyor belt. It further comprises a support belt which cooperates with said conveyor belt to press the product and its packaging and allow time for a sealing glue to take to ensure the closure of said package.
- FIGS. 1A, 1B, 1C, 1D and 1 E represent respectively the different stages of the packaging of the product as they occur in the course of the process according to the invention
- FIG. 2 represents a schematic view of the kinematic chain illustrating the phases of the process during the routing of the product through the equipment according to the invention
- FIG. 3 represents an overview of the equipment according to the invention
- FIG. 4 is a front elevational view of the first rotary conveyor, referred to as the folding revolver, with the heat sealing station of the longitudinal edge of the product packaging
- FIG. 5 is a front elevational view of the second rotary conveyor, called a revolver.
- FIG. 6A is a detail view in perspective of the sealing jaws of the inner ends of the folds of ends of the package after it has been formed in the folding box;
- FIG. 6B is a perspective detail view of the jaws; of sealing the outer ends of the folds of ends of the package after forming it in the folding box,
- FIG. 7 illustrates details of the final folding station with the folds Lateral benders and a longitudinal bender, and
- Figure 8 illustrates details of the final bending station with a longitudinal bender, an exit pusher, an evacuation tape and an upper support belt. Best ways to achieve the invention
- FIGS. 1A, 1B, 1C, 1D and 1E respectively represent the various steps of the packaging of the product as they occur in the course of the process according to the invention.
- Fig. 1A shows a product 10, which is typically a square or small rectangle of chocolate, fed by a longitudinal conveyor and a sheet of packaging material 11, interposed on the path of the product 10.
- the sheet of material of The package is preferably cut into a strip and consists of a material or a set of heat-sealable materials, known per se.
- FIG. 1B shows the sheet of packaging material 1 1 folded in a U-shape around the product 10, shown in phantom, inside a sheath 12 constituted by the sheet of packaging material 1 1 and presenting two longitudinal flaps 12a and 12b of unequal lengths, folded one on the other and which delimit the two sides of the U.
- FIG. 1C represents the product 10 and its sheet of packaging material 11 after constitution of said sheath 12 and longitudinal sealing of the two longitudinal flaps 12a and 12b of the sheet of packaging material on a surface 13 of superposition. This longitudinal sealing is effected by heat-sealing the packaging material along the corresponding edge of the product 10.
- Fig. 1D shows the product 10 and its partially formed package from the packaging material sheet 1 1, at the exit of a folding box which serves to fold the ends 14 and 15 which are the ends side of the sleeve 12, on either side of the surface 13 of superposition of the two longitudinal flaps 12a and 12b.
- the ends 14 and 15 each consist of more than two thicknesses of packaging material which is intended to seal to make the product package 10 completely watertight.
- the folding box shapes the folds of the ends. Subsequently, they will have to go to heat sealing stations to be sealed.
- Figure 1E shows the product 10 almost completely packaged.
- the folds of tips 14 and 15 have been sealed and the flap, called the longitudinal flap 16, consisting of the two flaps 12a and 12b heat-sealed on the superimposed surface 13 is folded down and then glued to the underside of the packaged product.
- This set of operations must be performed at a very high rate, about six hundred products packaged per minute, and the equipment that operates these actions must be efficient and preferably compact.
- FIG 2 shows a schematic view of the kinematic chain illustrating the phases of the process during the course of the product through the equipment.
- This equipment essentially comprises a linear conveyor 20 which conveys the products 10 and sets them in step, a device (not shown) for supplying sheets 1 1 of packaging material which are interposed on the trajectory of the products 10, a first conveyor rotary called first revolver 21 which carries the products with their sheet of packaging material about a half turn of the revolver 21 in the direction of the arrow A to an outlet 22 corresponding to the entry of the product in a box of folding (not shown).
- the products are supported by a second revolver 23, on a sector substantially greater than half a turn in the direction of the arrow B to an exit 24 which corresponds to a station of final folding. After this station, the products are taken over by a linear conveyor for discharging the packaged products.
- FIG. 3 illustrates a particular construction of the equipment according to the invention which is designed to implement the method of packaging the products in accordance with the kinematic chain as described above.
- the linear conveyor 20 comprises a set of endless conveyor belts 20a associated with a lapping belt 20b, a linear pusher 20c actuated by a parallelogram mechanism 20d ensuring a rectilinear movement, as well as against a pusher 20th taking the product and the sheet of packaging material, driven by a cam or the like.
- This set of components makes it possible to route the products 10 and the corresponding packing material sheets, to position them according to a predefined pitch and to place them in one of the receiving clamps 21a of the first revolver 21, called a revolver folding.
- This revolver 21 is sequential so as to allow the products and its packaging in formation to pass into stations, in particular a first heat-sealing station 30, which is designed to seal the two flaps of the material sheet. wrapping and sealing the fold along the longitudinal edge of the product 10.
- the products After a half-turn rotation, the products arrive at the exit 22 of the first revolver 21 in a folding box 31 where the folds of ends are formed. At the exit of the folding box, the products are transferred into the cells 23a of the second revolver 23 which turns in the opposite direction to the revolver 21. Said cells have a receptacle shape adequate to maintain the already formed folds.
- the products 10 are brought successively into at least two pairs of heat-sealing stations and, in the example shown, three heat-sealing stations 40, 41 and 42 of the tip folds. These three heat sealing stations are identical and successively receive the same products.
- the reason for this multiplication of stations is due to the fact that the folds of the ends have more than two thicknesses of packing material and that the heat sealing is even longer as the thicknesses of material are more numerous.
- the time required for heat-sealing the end pleats is thus substantially three times longer than that required for sealing the longitudinal edge where only two layers are to heat-seal against each other.
- the solution consists, according to a feature of the invention, to pass several times the same product in a heat-sealing station.
- the product passes through three successive heating stations and the passage time of each product in all the stations is substantially equal to the product of the passage time in a station by the number of layers of heat-sealable material to be welded. .
- the installation comprises an output station 50 provided, on the one hand, with lateral benders 50a actuated by a mechanism 50b and arranged to fold down the folds of ends 14, 15 and, on the other hand, a longitudinal bender two halves 50c carried by pivoting arms and actuated by a mechanism for folding down the longitudinal flap 16 of the sheet of packaging material.
- An axial displacement pusher ejects the product onto a conveyor belt 60, and a support belt 60a holds the products 10 in place on the conveyor belt 60 to allow time for a sealing glue to be taken to ensure the closure of the package .
- FIG. 4 is a front elevational view of the first rotary conveyor, referred to as the first revolver 21 or folding revolver, which comprises, in this case, six receiving clamps 21 which successively receive a product with each advancing of the revolver by an angle of 60 °.
- Receiving tongs 21a are defined by two articulated arms 21b forming a product gripper, themselves constituted in this phase of the product itself 10 and the sheet of packaging material 1 1 folded U.
- the revolver 21 moves in the direction of the arrow A, its third stop position corresponds to the heat-sealing station 30 which is designed to seal the two flaps of the sheet of packaging material along the fold of the longitudinal edge of the product 10.
- This heat-sealing station 30 has two jaws or pairs of heated jaws 30a and 30b disposed substantially at the end of two articulated arms that allow the jaws to open and close.
- the movement of the jaws can be controlled by any means, mechanical such as a cam, or electric as a motor, depending on the specific characteristics of the movements and parameters set.
- the total residence time of the product at standstill is of the order of 50 milliseconds. During this time, jaw placement, heat sealing and jaw removal should be possible.
- the output of the first revolver at 22 corresponds to the entry into the folding box 31.
- This folding box 31 is not shown in more detail, since it is a very usual and well-known component which is used in a number of packaging equipment and in particular in the equipment described. in the earlier European Patent No. 0 295 203 A1.
- Such a folding box has helical side walls which allow shaping of the ends of the sheet of packaging material when the product 10 and its packaging material 11 are brought inside this box. box.
- FIG. 5 is a front elevational view of the second rotary conveyor, referred to as a second revolver 23 or sealing revolver.
- the revolver 23 has eight receptacle cells 23a which support the products 10 and their sheet 1 1 of packaging material previously sealed along the longitudinal edge.
- the revolver 23 rotates in the direction of the arrow B and brings each product 10 successively in the heat-sealing stations 40, 41 and 42.
- the components of these end ply heat-sealing stations 14 and 15 will be further illustrated by FIGS. 6A and 6B.
- Each product 10 has a stretch fold and a left end fold and as the heating heat sealing jaws can not be applied directly against the surface of the product 10, it is necessary to provide for each of the folds of tips 14 and 15, an inner heating jaw and an outer heating jaw which will apply on both sides of the packaging material during the heat sealing operations.
- Each product passes from one of the heat-sealing stations to the next and the three stations 40, 41 and 42 continuously contain a product, each of these products routinely passing through the three stations before being ejected onto the conveyor belt 60.
- Fig. 6A is an enlarged view showing inner sealing jaws 40a of end plies 14 and 15 (see Fig. 1 D), for example heat sealing station 40.
- these jaws are arranged in pairs and mounted on a parallelogram mechanism 40b comprising two arms 40c articulated on two fixed axes 40d integral with the frame of the heat-sealing station 40 and whose opposite ends bear the jaws 40a.
- One of the arms 40d is actuated by a mechanical actuator (not shown) which consists for example of a mechanical assembly such as a cam, or an electric motor, in order to move the jaws 40a in the direction of the double arrow D.
- This action has the effect of bringing the jaws 40a into the space delimited between the two folds of ends of the packaging of the product which is momentarily in the heat-sealing station 40, substantially parallel to the end fold concerned, in waiting for the placement of the outer jaws.
- the corresponding outer jaws which will be described hereinafter with reference to FIG. 6B, have the function of pressing the end fold concerned against the inner jaws 40a, so that the end fold is pinched between the outer jaws and the outer jaws 40a.
- inner jaws during the time required for a first phase of heat sealing This same operation is carried out simultaneously for the left-end fold and the right-end fold and starts again three times, successively in the heat-sealing stations 40, 41 and 42. It will be noted that the construction of these heat-sealing stations 41 and 42 is identical to that of the heat-sealing station 40.
- FIG. 6B is a view showing the three pairs of outer right sealing jaws 40e, 41e and 42e and the three pairs of outer left sealing jaws 40f, 41f and 42f of each of the sealing stations 40, 41 and 42 of FIGS. folds of tips 14 and 15 (see Fig. 1 D). All the outer right sealing jaws are carried by the same support 40g and all the outer left jaws are carried by the same support 40h.
- the support 40g is equipped with an actuating mechanism (not shown) which moves it in the direction of the double arrow E and the support 40h is equipped with an actuating mechanism (not shown) which moves it in the direction
- the displacement of the supports 40g and 40h leads, in a first step, the heat sealing jaws bearing against the ends folds, which are then clamped between the inner heat sealing jaws and the outer heat sealing jaws.
- the three successive stations 40, 41 and 42 will allow the three layers of heat-sealable material to be welded together and to finalize the sealed package of the product 10.
- the output station 50 which comprises two lateral benders 50a which move according to the double arrows G, respectively and which are actuated by two mechanisms 50b with parallelograms and arranged to slide transversely relative to the direction of longitudinal displacement. products 10 to fold the folds ends.
- the output station 50 comprises the longitudinal fold divided into two halves 50c, carried by two lateral arms 50d hinged about a pivot axis 50e and actuated by a mechanism 50f to fold the longitudinal flap of the sheet of packaging material under the product 10.
- the longitudinal flap 16 is in fact glued to the using a hot glue, which keeps the folds ends 14 and 15, and apply the longitudinal flap 16 on the sealed package around the product 10.
- FIG. 8 more particularly represents the part of the output station 50 which comprises an axial displacement pusher 50g whose function consists of ejecting the product 10 onto the conveyor belt 60 for discharging the products 10. Since the final flap 16 of the sheet of packaging material has been applied to a glued area of the package, it must be kept applied to this package during the glue taking. This maintenance is provided by the support belt 60a, which cooperates with the conveyor belt 60 to allow time for the glue to take and ensure the closure of the package. Note that the final flap 16 of the sheet of packaging material is closed in the same direction as the direction of movement of the product, which may cause the opening of this flap. This disadvantage is avoided by a running speed of the conveyor belt 60 and the support belt 60a slightly greater than that of the pusher 50g.
- the invention makes it possible to achieve the goals set, namely to carry out a tightly folded packaging of a fragile and delicate product whose aesthetic appearance must be preserved, at a very high rate, by means of a compact and reliable equipment.
- the size and nature of the products may vary and the packaging material may be adapted to the products.
- the drive mechanisms can be adapted as needed, but the essential bases, including the principle of sealed packaging using a heat-sealable material, remain immutable.
- the equipment includes two revolvers, one of which comprises at least one heat-sealing station with two layers of packaging material and the other of which has a plurality of heat-sealing stations for successive sealing of several layers, for example three layers of packing material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Closing Of Containers (AREA)
- Package Closures (AREA)
- Confectionery (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20110711502 EP2688805B1 (fr) | 2011-03-23 | 2011-03-23 | Procede pour le conditionnement de produits, notamment des portions de chocolat ou similaires, et equipement pour la mise en uvre du procede |
BR112013023988A BR112013023988A2 (pt) | 2011-03-23 | 2011-03-23 | método para o acondicionamento de produtos, notadamente partes de chocolate ou similares, e equipamento para a aplicação do método |
PCT/EP2011/054449 WO2012126521A1 (fr) | 2011-03-23 | 2011-03-23 | Procede pour le conditionnement de produits, notamment des portions de chocolat ou similaires, et equipement pour la mise en œuvre du procede |
US14/006,926 US20140013715A1 (en) | 2011-03-23 | 2011-03-23 | Method for packaging products, particularly portions of chocolate or the like, and facility for implementing the method |
CN201180069474.6A CN103459253B (zh) | 2011-03-23 | 2011-03-23 | 产品包装方法及实施该方法的设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2011/054449 WO2012126521A1 (fr) | 2011-03-23 | 2011-03-23 | Procede pour le conditionnement de produits, notamment des portions de chocolat ou similaires, et equipement pour la mise en œuvre du procede |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012126521A1 true WO2012126521A1 (fr) | 2012-09-27 |
Family
ID=44625607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/054449 WO2012126521A1 (fr) | 2011-03-23 | 2011-03-23 | Procede pour le conditionnement de produits, notamment des portions de chocolat ou similaires, et equipement pour la mise en œuvre du procede |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140013715A1 (fr) |
EP (1) | EP2688805B1 (fr) |
CN (1) | CN103459253B (fr) |
BR (1) | BR112013023988A2 (fr) |
WO (1) | WO2012126521A1 (fr) |
Cited By (2)
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CN104724314A (zh) * | 2015-03-31 | 2015-06-24 | 成都三可实业有限公司 | 一种口香糖外包装机输糖进糖系统 |
EP3248890A2 (fr) | 2016-05-25 | 2017-11-29 | Theegarten-Pactec Gmbh & Co. | Procédé et dispositif d'emballage hermétique d'articles de petite taille comprenant un fond essentiellement rectangulaire |
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US9991423B2 (en) * | 2014-06-18 | 2018-06-05 | X-Celeprint Limited | Micro assembled LED displays and lighting elements |
IT201600082723A1 (it) | 2016-08-05 | 2018-02-05 | Cmfima S R L | Gruppo di incarto |
CN106945887B (zh) * | 2017-05-17 | 2019-05-03 | 杭州富阳福士得食品有限公司 | 一种转动承接的食品密封设备 |
CN108248930B (zh) * | 2018-01-29 | 2020-02-14 | 宁波市金龙机械实业有限公司 | 产品的薄膜裹包热封装置和产品的薄膜裹包热封方法 |
CN114174176B (zh) * | 2019-08-02 | 2023-05-23 | 普拉斯利恩责任有限公司 | 用于包装纸卷的包装机器 |
CN113148312A (zh) * | 2021-04-25 | 2021-07-23 | 昆明市凯跃机电塑料有限责任公司 | 一种新型透明纸包装机及包装工艺 |
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Also Published As
Publication number | Publication date |
---|---|
US20140013715A1 (en) | 2014-01-16 |
BR112013023988A2 (pt) | 2016-12-13 |
CN103459253B (zh) | 2015-06-03 |
CN103459253A (zh) | 2013-12-18 |
EP2688805A1 (fr) | 2014-01-29 |
EP2688805B1 (fr) | 2014-12-31 |
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