EP3235739A1 - Method and assembly for feeding mixed batches of primary products - Google Patents
Method and assembly for feeding mixed batches of primary products Download PDFInfo
- Publication number
- EP3235739A1 EP3235739A1 EP17167219.9A EP17167219A EP3235739A1 EP 3235739 A1 EP3235739 A1 EP 3235739A1 EP 17167219 A EP17167219 A EP 17167219A EP 3235739 A1 EP3235739 A1 EP 3235739A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tray
- primary products
- inlet conveyor
- feeding
- picking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004806 packaging method and process Methods 0.000 claims abstract description 29
- 238000011068 loading method Methods 0.000 claims description 18
- 238000000151 deposition Methods 0.000 claims description 16
- 230000005465 channeling Effects 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 230000001131 transforming effect Effects 0.000 claims 5
- 230000008021 deposition Effects 0.000 description 10
- 239000011111 cardboard Substances 0.000 description 8
- 239000000796 flavoring agent Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000011049 filling Methods 0.000 description 5
- 235000019634 flavors Nutrition 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 235000015122 lemonade Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015205 orange juice Nutrition 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 238000009516 primary packaging Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- 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
- B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
- B65B35/30—Arranging and feeding articles in groups
- B65B35/54—Feeding articles along multiple paths to a single packaging position
-
- 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
- B65B21/00—Packaging or unpacking of bottles
- B65B21/02—Packaging or unpacking of bottles in or from preformed containers, e.g. crates
- B65B21/04—Arranging, assembling, feeding, or orientating the bottles prior to introduction into, or after removal from, containers
-
- 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
- B65B2220/00—Specific aspects of the packaging operation
- B65B2220/14—Adding more than one type of material or article to the same package
Definitions
- the present invention relates to a group for feeding mixed batches of primary products and to a relative method.
- a need increasingly present in the packaging industry is to produce mixed sales units containing single primary products, which may be bottles, containers or cans, having different features.
- a sale unit is defined as a bundle, a tray or a closed cardboard.
- the primary products included within this mixed sales units may differ in content, color, labeling and in more complex cases in the shape of the bottle or container. In order to simplify the description, it is said that the primary products are of different "type" to define all of these possible differences.
- An example may be a cardboard tray containing bottles of orange juice and lemonade.
- Primary products can similarly denote units enclosed in primary packages to be inserted in a packaging machine for producing secondary packages.
- mixed sales units create major problems for the management of primary products.
- the primary products are typically filled by the same blowing and filling block on a single line.
- the filler in most cases is able to fill only one type of liquid at a time and then the change from one liquid to another requires a wash and a format change.
- this storage requires palletizing single-flavour primary products, a pallet handling to and from the warehouse, one or more depalletizers that depalletize the single-flavour primary products in the respective flavour to be packaged in the mixed sales units and carry the primary products on single-row conveyors, a combiner plus a divider for loose articles that generate the desired mix on the various inlet channels to the packaging machine.
- depalletizers that depalletize the single-flavour primary products in the respective flavour to be packaged in the mixed sales units and carry the primary products on single-row conveyors
- a combiner plus a divider for loose articles that generate the desired mix on the various inlet channels to the packaging machine.
- flavours may be left to the store before they are exposed.
- Manual mixing is very expensive due to the large number of people needed and requires a dedicated area.
- the depalletizing of primary products causes the presence at the packaging site of a large amount of paper or cardboard trays, emptied of the primary products, that require disposal.
- tray it is meant a sheet of paper or cardboard folded on all four sides to form two glued opposite outer sides and two sides orthogonal to the outer sides, provided at their ends with appendices forming inner flaps glued to glued outer flaps of the other sides.
- the aim of the present invention is to provide a group for feeding mixed batches of primary products and a relative method which allows solving the drawbacks of the prior art.
- Another aim of the present invention is to provide a group for feeding mixed batches of primary products and a relative method able to manage a large number of different primary products.
- a further aim of the present invention is to provide a group for feeding mixed batches of primary products and a relative method able to be fed with both primary products from filling lines and with depalletized primary products.
- a further aim of the present invention is to provide a group for feeding mixed batches of primary products and a relative method which allow recycling empty trays by opening the same without breaking them.
- Another aim of the present invention is to provide a group for feeding mixed batches of primary products and a relative method particularly simple and functional, with limited costs and compact in size.
- a group for feeding mixed batches of primary products is shown, generally indicated with 10, which feeds mixed batches 11' of primary products 11, i.e. batches consisting of different primary products, towards a packaging machine 12 which packs them into bundles, trays or closed cardboards.
- packaging machine it is meant a machine that adds a packaging to the incoming primary containers 11, such as a trayformer, a bundling machine or a packer.
- primary products loose units, as well as units packed into primary packaging, in both cases to be inserted in a packaging machine for creating a packaging around batches of primary products.
- a depalletizing station 13 upstream of the feeding group of mixed batches 10 a depalletizing station 13 is present, comprising a depalletizing robot 14, which picks up pallets of different primary containers from one or more conveyors 15, from related picking positions 15'.
- Such primary containers are contained, for example, within trays 111 that are picked by the gripper of the depalletizing robot 14 and placed layer by layer on a plurality of conveyor belts 16, shown in greater detail in figure 2 .
- Each pallet of trays generally comprises homogeneous primary products 11, for example one flavor, previously palletized and stored for subsequent mixed palletizing.
- the conveyor belts 16 carry trays 111 each on a loading station 21 of a tray 111 or of a pallet of trays 111.
- the loading station 21 may in turn consist of a conveyor belt.
- the group for feeding mixed batches 10 comprises at least one handling unit, or robot, 20.
- the feeding unit 18 further comprises at least two distinct picking points 18 of primary products 11.
- the picking points 18 may for example consist of the loading stations 21 of a tray 111 or of a pallet of trays 111 or of at least one loading station 21 and at least one single-row continuous conveyor of primary products, not shown.
- the example shows a number of picking points 18 equal to the number of handling units 20.
- a same handling unit 20 may be operatively associated with a plurality of tray loading stations 21.
- the same will necessarily be associated with at least two picking points 18, consisting of single-row continuous conveyors and/or loading stations 21.
- each of them may operate with one or more picking points 18, consisting of single-row continuous conveyors and/or loading stations 21.
- Each handling unit 20, of which figure 1 shows by way of example a number equal to four, is provided with a gripping head 22 comprising a gripper 23 of multiples of primary products 11 arranged in a single row.
- row of products it is meant at least two products aligned with each other along a straight line.
- Each handling unit 20, which is operatively associated with at least one of the picking points 18, is also operatively associated with an inlet conveyor 30, provided with continuous motion towards the packaging machine 12.
- the inlet conveyor 30 may be located at a higher height with respect to the plane of the loading station 21.
- the inlet conveyor 30 may be a smooth conveyor or a conveyor provided with a plurality of channels 31 delimited by vertical plates 32 for the transport and accumulation of primary products 11 on separate rows.
- a mechanical selection device 33 is also provided at the outlet end of the inlet conveyor 30 for the formation of batches 11' of primary products 11 ( figure 3 ).
- the handling units 20 deposit the entire row of primary products 11 in tracking, that is to say, at approximately the same speed as the underlying conveyor, on the predetermined channel 31 of the inlet conveyor 30.
- a second embodiment instead provides for the use of a gripper, not shown, consisting of independent portioned elements which allow the partial deposition of the primary products over several different rows.
- one or more channels 31 of the inlet conveyor 30 are not operatively associated with a handling unit 20 but are connected to a portionable channeling system 17 for feeding with a continuous flow of primary products 11, in parallel to the feeding on the remaining channels 31 through the handling units 20.
- the conveyor belts 16 carry trays 111 one after the other, spacing them, to the loading station 21, where one or more handling units, or a robot, 20 pick the rows of primary containers 11 from trays 111 placing them directly into channels 31 of the inlet conveyor 30 of the packaging machine 12.
- the handling units 20 are able to track in electric axis the inlet conveyor 30, so as to gently deposit the primary products 11, preventing any risk of falling.
- These sections are modular and the number of handling units 20 depends on the production mix and the production required. Each handling unit 20 can feed any number of channels 31 and pick from one or more loading stations 21.
- the gripper 23 picks one row of primary products 11 at a time and such a row is entirely deposited within a single channel 31.
- such an embodiment may be extended with the use of a gripper that picks a plurality of primary products with independent clamping systems.
- the handling unit 20 can pick up a row of primary containers 11 and deposit them into separate channels 31, so as to achieve a mix of products that allows not having a simple mixing of product channel by channel, but a production mix that can achieve the deposition of the single primary product in the desired position within the packaging created by the packaging machine 12.
- figures 4A-4C show in sequence a possible deposition cycle, in which gripper 23 picks up a row of products from a tray 111 and deposits them through multiple operations of partial deposition on different rows to form a virtual batch 11'.
- Figures 5 and 6A-6D show an embodiment of gripper 23 of multiples of primary products 11 arranged in a single row, adapted to pick up a row of primary containers consisting of bottles and release them all together on one row.
- Gripper 23 comprises, according to this embodiment, two plates 24 parallel to each other and arranged in planes parallel to the plane containing the axis of the bottles. Plates 24 are provided with a continuous gripping tooth 25 along the entire inner bottom edge. The two plates 24 are movable in mutual approach to pick the bottles under the collar in the vicinity of the neck and are movable away to release the same.
- the gripper 23 also comprises a pressure bar 26 arranged between the two plates 24 and provided with a plane perpendicular to the axis of the bottles engageable in abutment on the tops of the bottle caps.
- the gripping cycle shown in sequence in figures 6A-6D provides for lowering gripper 23 in the direction of the row of bottles, approaching the two plates 24 and placing teeth 25 in gripping under the collar of the bottles, and lowering the pressure bar 26 against the cap of the bottles in a row.
- the row of bottles is thus picked up from the tray and placed on the inlet conveyor 30. Only after finishing the deposition of the row of bottles on the inlet conveyor 30, the pressure exerted by bar 26 is released and plates 24 are moved away from each other.
- the group for feeding mixed batches 10 according to the invention can integrate a recycling system 40 of trays 111, either of paper or cardboard, in output from the loading station 21, which feeds them towards a tray processing unit.
- the tray processing unit picks them up, opens them and stacks them.
- the tray recycling system 40 comprises a return structure of empty trays 111 positioned underneath the inlet conveyor 30 to the packaging machine 12.
- the tray processing unit comprises a robot 41 provided with a suction cup gripping head 42, identifying a quadrilateral perimeter of size adjustable as a function of the size of trays 111.
- the suction cup gripping head 42 comprises four gripper elements 43 placed in pairs at ends of two opposite sides of the perimeter, associable with pairs of opposite glued flaps, outer 111A and inner 111'A, of the tray 111.
- Each gripper element 43 is provided with a first set of inner suction cups 44 that are engageable in translation by means of linear actuators 56 against the inner glued flap 111'A of the tray, and a tear device, which can be engaged to the outer glued flap 111A of the tray by means of a tilting arm 46, adapted to detach flap 111A of tray 111 with the rotary movement thereof.
- the tear device causes the detachment of the two glued flaps, outer 111A and inner 111'A following the detachment of the glue and not the breakage of the cardboard.
- the tear device may comprise a second set of outer suction cups 45, engageable against the outer glued flap 111A of the tray, associated with a hook 54, actuatable via a linear actuator 55, for the engagement in hooking with the glued side of tray 111 from the inside thereof.
- the hook 54 which may also be associated to one of the two gripper elements 43, engaged with a pair of glued flaps 111A, 111'A, as shown for example in figure 7 , is positioned along the side of tray 111 so as not to be engaged with the inner glued flap 111'A. It is in fact positioned more centrally with respect to the second set of outer suction cups 45.
- the hook 54 may be absent or be associated with all the gripper elements.
- the outer 45 and inner 44 suction cups are closed in sequence against the glued flaps 111A and 111'A, while the hook 54 is in an extracted rest position.
- the vacuum generation within the same ensures the grip on the corresponding glued flaps 111A and 111'A.
- the hook 54 is then moved by translation to the engagement position thereof with the inner glued side of the tray.
- the outer suction cups 45 and the hook 54 are made to rotate around a fulcrum 47, placed about around at the outer glued flap fold 111A, through the engagement of a linear actuator 48 on a tilting arm 49 rigidly connected in parallel to arm 46.
- the hook 54 helps to pull the glued flap 111A preventing the detachment of the outer suction cup 45, carrying out a synergistic action to obtain the detachment of the glued flaps 111A and 111'A with minimum deformation of tray 111.
- the hook 54 is then returned to an extracted resting position.
- the closing and tearing cycle of the pair of suction cups 44, 45 is carried out in the same manner described above.
- the outer suction cups 45 are rotated around fulcrum 47, placed about at the outer glued flap fold 111A, through the engagement of the linear actuator 48 on the tilting arm 49 rigidly connected in parallel to arm 46.
- the suction cup gripping head 42 also comprises a pair of presser elements 50 placed at the remaining two sides 111B of tray 111, respectively, orthogonal to the glued flaps 111A and 111'A.
- Each presser element 50 preferably provided with a wide flat thrust surface, is hinged at the fold of side 111B of tray 111, orthogonal to glued flaps 111A and 111'A, and connected to a linear actuator 51.
- the presser elements 50 rotate orthogonally to the tearing direction of the outer glued flap 111A to act each on a side orthogonal to the gluing side of the tray, to complete the opening of the orthogonal sides 111B and flattening of the tray, as shown in figure 9 .
- the suction cup gripping head 42 also comprises, in a position inside the quadrilateral perimeter, a plurality of vertical linear actuators 52 arranged orthogonally to the tray plane, provided at the lower ends with suction cups 53, adapted to keep the open tray 111 open and facilitate the removal thereof from the suction cup gripping head 42 for the deposition on a stack of open trays by pushing the open tray downwards ( figure 10 ).
- the method for feeding mixed batches of primary products to a packaging machine comprises the steps of:
- the tracking deposition step may relate to a whole row of products engaged by a gripper 23, deposited along the same row of the inlet conveyor 30, or it may relate to subsets of the product row engaged by gripper 23, deposited along multiple rows of the inlet conveyor 30.
- the tracking deposition step may be carried out within channels 31 of the inlet conveyor 30 or directly on the smooth conveyor.
- the method for feeding mixed batches of primary products to a packaging machine also comprises the step of:
- the method according to the invention finally comprises a feeding step of empty trays 111 from the loading station 21 towards a tray processing unit and an empty tray processing step.
- the empty tray processing step comprising the steps of:
- the group for feeding mixed batches of primary products and the relative method according to the present invention have the advantage of implementing a line end able to work in mixed palletizing in a compact manner.
- this solution in some embodiments thereof allows simultaneously working with one or more types of primary products coming from palletized products and with one or more products coming from the filling lines.
- This solution allows operation even with idle system parts, for example production can be done with primary products of one type only, coming directly from the production/filling lines and not from the depalletizing group.
- the feeding group according to the present invention in particular, simultaneously works with one or more types of primary products coming from palletized products and with one or more primary products coming from the filling lines.
- the suction cup gripping head of the tray recycling system of the feeding group according to the present invention advantageously allows ungluing the glued flaps without tearing the cardboard.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Container Filling Or Packaging Operations (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
Abstract
Description
- The present invention relates to a group for feeding mixed batches of primary products and to a relative method.
- A need increasingly present in the packaging industry is to produce mixed sales units containing single primary products, which may be bottles, containers or cans, having different features.
- Typically, a sale unit is defined as a bundle, a tray or a closed cardboard. The primary products included within this mixed sales units may differ in content, color, labeling and in more complex cases in the shape of the bottle or container. In order to simplify the description, it is said that the primary products are of different "type" to define all of these possible differences.
- An example may be a cardboard tray containing bottles of orange juice and lemonade.
- Primary products can similarly denote units enclosed in primary packages to be inserted in a packaging machine for producing secondary packages.
- From the plant point of view, according to the prior art, mixed sales units create major problems for the management of primary products. In fact, the primary products are typically filled by the same blowing and filling block on a single line. The filler in most cases is able to fill only one type of liquid at a time and then the change from one liquid to another requires a wash and a format change.
- The problem of storing primary products of the same flavour or type for subsequent mixed re-packaging for the external market must be managed accordingly. It is also not always established that single-flavour products are made specifically for re-packaging, but these products may be required to be placed on the market directly.
- Typically, this storage requires palletizing single-flavour primary products, a pallet handling to and from the warehouse, one or more depalletizers that depalletize the single-flavour primary products in the respective flavour to be packaged in the mixed sales units and carry the primary products on single-row conveyors, a combiner plus a divider for loose articles that generate the desired mix on the various inlet channels to the packaging machine. As speeds increase, combiner and divider become very complex, thus becoming the performance bottleneck of the system.
- Alternatively, the mixing of flavours may be left to the store before they are exposed. Manual mixing is very expensive due to the large number of people needed and requires a dedicated area.
- In general, the depalletizing of primary products causes the presence at the packaging site of a large amount of paper or cardboard trays, emptied of the primary products, that require disposal.
- By tray it is meant a sheet of paper or cardboard folded on all four sides to form two glued opposite outer sides and two sides orthogonal to the outer sides, provided at their ends with appendices forming inner flaps glued to glued outer flaps of the other sides.
- The aim of the present invention is to provide a group for feeding mixed batches of primary products and a relative method which allows solving the drawbacks of the prior art.
- Another aim of the present invention is to provide a group for feeding mixed batches of primary products and a relative method able to manage a large number of different primary products.
- A further aim of the present invention is to provide a group for feeding mixed batches of primary products and a relative method able to be fed with both primary products from filling lines and with depalletized primary products.
- A further aim of the present invention is to provide a group for feeding mixed batches of primary products and a relative method which allow recycling empty trays by opening the same without breaking them.
- Another aim of the present invention is to provide a group for feeding mixed batches of primary products and a relative method particularly simple and functional, with limited costs and compact in size.
- These aims according to the present invention are achieved by providing a group for feeding mixed batches of primary products and a relative method as set out in the independent claims.
- Further characteristics are described in the dependent claims.
- The characteristics and the advantages of a group for feeding mixed batches of primary products and a relative method according to the present invention will become apparent from the following exemplary and nonlimiting description, made with reference to the accompanying schematic drawings, in which:
-
figure 1 is a plan view of a layout of a plant comprising a group for feeding mixed batches of primary products according to the invention; -
figures 2 and3 show an embodiment of the group for feeding mixed batches of primary products according to the invention in side elevation and in plane view, respectively; -
figures 4A-4C show in a sequence multiple operations of partial deposition of a gripper of a handling unit on an inlet conveyor of a second embodiment of the feeding group of the invention; -
figure 5 shows a gripping head of a handling unit of the group according to the invention, equipped with a gripper of a row of bottles; -
figures 6A-6D show the gripping sequence of the row of bottles with the gripper offigure 5 ; -
figure 7 shows a suction cup gripper of a robot of the tray recycling system of the group according to the invention; -
figures 8A-8D show the opening sequence of a glued flap of a paper tray through the suction cup head offigure 7 ; -
figure 9 shows the subsequent opening of a side orthogonal to the glued flap of the tray through the suction cup head offigure 7 ; -
figure 10 shows the final extraction of the tray from the suction cup head offigure 7 . - With reference to the figures, a group for feeding mixed batches of primary products is shown, generally indicated with 10, which feeds mixed batches 11' of
primary products 11, i.e. batches consisting of different primary products, towards apackaging machine 12 which packs them into bundles, trays or closed cardboards. By packaging machine it is meant a machine that adds a packaging to the incomingprimary containers 11, such as a trayformer, a bundling machine or a packer. - By primary products it is meant loose units, as well as units packed into primary packaging, in both cases to be inserted in a packaging machine for creating a packaging around batches of primary products.
- In an embodiment of the invention, shown in
figure 1 , upstream of the feeding group of mixed batches 10 a depalletizingstation 13 is present, comprising adepalletizing robot 14, which picks up pallets of different primary containers from one ormore conveyors 15, from related picking positions 15'. Such primary containers are contained, for example, withintrays 111 that are picked by the gripper of thedepalletizing robot 14 and placed layer by layer on a plurality ofconveyor belts 16, shown in greater detail infigure 2 . Each pallet of trays generally comprises homogeneousprimary products 11, for example one flavor, previously palletized and stored for subsequent mixed palletizing. Theconveyor belts 16 carrytrays 111 each on aloading station 21 of atray 111 or of a pallet oftrays 111. Theloading station 21 may in turn consist of a conveyor belt. - The group for feeding mixed
batches 10 according to the invention comprises at least one handling unit, or robot, 20. Thefeeding unit 18 further comprises at least twodistinct picking points 18 ofprimary products 11. Thepicking points 18 may for example consist of theloading stations 21 of atray 111 or of a pallet oftrays 111 or of at least oneloading station 21 and at least one single-row continuous conveyor of primary products, not shown. - The example shows a number of
picking points 18 equal to the number ofhandling units 20. Likewise, according to a configuration not shown, asame handling unit 20 may be operatively associated with a plurality oftray loading stations 21. In the minimum configuration of a single handling unit, the same will necessarily be associated with at least twopicking points 18, consisting of single-row continuous conveyors and/orloading stations 21. In the configuration comprising two ormore handling units 20, each of them may operate with one ormore picking points 18, consisting of single-row continuous conveyors and/orloading stations 21. - Each
handling unit 20, of whichfigure 1 shows by way of example a number equal to four, is provided with a grippinghead 22 comprising agripper 23 of multiples ofprimary products 11 arranged in a single row. By "row of products" it is meant at least two products aligned with each other along a straight line. - Each
handling unit 20, which is operatively associated with at least one of thepicking points 18, is also operatively associated with aninlet conveyor 30, provided with continuous motion towards thepackaging machine 12. As shown infigure 2 , theinlet conveyor 30 may be located at a higher height with respect to the plane of theloading station 21. According to different embodiments, theinlet conveyor 30 may be a smooth conveyor or a conveyor provided with a plurality ofchannels 31 delimited byvertical plates 32 for the transport and accumulation ofprimary products 11 on separate rows. In the case of aninlet conveyor 30 provided withchannels 31, amechanical selection device 33 is also provided at the outlet end of theinlet conveyor 30 for the formation of batches 11' of primary products 11 (figure 3 ). - According to a first embodiment, the
handling units 20 deposit the entire row ofprimary products 11 in tracking, that is to say, at approximately the same speed as the underlying conveyor, on thepredetermined channel 31 of theinlet conveyor 30. - A second embodiment instead provides for the use of a gripper, not shown, consisting of independent portioned elements which allow the partial deposition of the primary products over several different rows.
- According to a preferred embodiment, one or
more channels 31 of theinlet conveyor 30 are not operatively associated with ahandling unit 20 but are connected to aportionable channeling system 17 for feeding with a continuous flow ofprimary products 11, in parallel to the feeding on theremaining channels 31 through thehandling units 20. - In the group for feeding mixed
batches 10 according to the invention, theconveyor belts 16 carrytrays 111 one after the other, spacing them, to theloading station 21, where one or more handling units, or a robot, 20 pick the rows ofprimary containers 11 fromtrays 111 placing them directly intochannels 31 of theinlet conveyor 30 of thepackaging machine 12. Thehandling units 20 are able to track in electric axis theinlet conveyor 30, so as to gently deposit theprimary products 11, preventing any risk of falling. These sections are modular and the number ofhandling units 20 depends on the production mix and the production required. Eachhandling unit 20 can feed any number ofchannels 31 and pick from one ormore loading stations 21. - In one embodiment of the
feeding group 10, thegripper 23 picks one row ofprimary products 11 at a time and such a row is entirely deposited within asingle channel 31. However, such an embodiment may be extended with the use of a gripper that picks a plurality of primary products with independent clamping systems. In this way, thehandling unit 20 can pick up a row ofprimary containers 11 and deposit them intoseparate channels 31, so as to achieve a mix of products that allows not having a simple mixing of product channel by channel, but a production mix that can achieve the deposition of the single primary product in the desired position within the packaging created by thepackaging machine 12. - In addition, it is possible to operate the handling
units 20 and thepackaging machine 12 as a single machine, thus synchronizing the operations of thesingle handling units 20 with the step of thepackaging machine 12. According to this configuration, it is possible to eliminate the channelingplates 32 from theinlet conveyor 30 and assign one or more batches 11' of primary containers that must be deposited at each step to eachhandling unit 20. The set ofprimary containers 11 deposited at the same machine step constitutes a so-called "virtual batch" which becomes the final pack of thepackaging machine 12, without requiring a further selection and without the necessity of having to accumulate. This solution can be combined with a bottle selection device, located on the platform before the handlingunits 20 themselves, able to select primary containers from a production line on some rows, while the handlingunits 20 form the remaining rows ofprimary products 11 in steps. - If a gripping
head 22 of thehandling unit 20 is used, equipped with agripper 23 able to pick multiples of primary products with independent clamping systems, used in association with asmooth inlet conveyor 30, that is to say, devoid of channels,figures 4A-4C show in sequence a possible deposition cycle, in which gripper 23 picks up a row of products from atray 111 and deposits them through multiple operations of partial deposition on different rows to form a virtual batch 11'. -
Figures 5 and6A-6D show an embodiment ofgripper 23 of multiples ofprimary products 11 arranged in a single row, adapted to pick up a row of primary containers consisting of bottles and release them all together on one row. -
Gripper 23 comprises, according to this embodiment, twoplates 24 parallel to each other and arranged in planes parallel to the plane containing the axis of the bottles.Plates 24 are provided with a continuousgripping tooth 25 along the entire inner bottom edge. The twoplates 24 are movable in mutual approach to pick the bottles under the collar in the vicinity of the neck and are movable away to release the same. - The
gripper 23, according to the embodiment suitable for gripping a row of bottles, also comprises apressure bar 26 arranged between the twoplates 24 and provided with a plane perpendicular to the axis of the bottles engageable in abutment on the tops of the bottle caps. - The gripping cycle shown in sequence in
figures 6A-6D provides for loweringgripper 23 in the direction of the row of bottles, approaching the twoplates 24 and placingteeth 25 in gripping under the collar of the bottles, and lowering thepressure bar 26 against the cap of the bottles in a row. The row of bottles is thus picked up from the tray and placed on theinlet conveyor 30. Only after finishing the deposition of the row of bottles on theinlet conveyor 30, the pressure exerted bybar 26 is released andplates 24 are moved away from each other. - The group for feeding
mixed batches 10 according to the invention can integrate arecycling system 40 oftrays 111, either of paper or cardboard, in output from theloading station 21, which feeds them towards a tray processing unit. The tray processing unit picks them up, opens them and stacks them. In the example offigures 1 and2 , thetray recycling system 40 comprises a return structure ofempty trays 111 positioned underneath theinlet conveyor 30 to thepackaging machine 12. - The tray processing unit comprises a
robot 41 provided with a suctioncup gripping head 42, identifying a quadrilateral perimeter of size adjustable as a function of the size oftrays 111. The suctioncup gripping head 42 comprises fourgripper elements 43 placed in pairs at ends of two opposite sides of the perimeter, associable with pairs of opposite glued flaps, outer 111A and inner 111'A, of thetray 111. Eachgripper element 43 is provided with a first set ofinner suction cups 44 that are engageable in translation by means of linear actuators 56 against the inner glued flap 111'A of the tray, and a tear device, which can be engaged to the outer gluedflap 111A of the tray by means of a tiltingarm 46, adapted to detachflap 111A oftray 111 with the rotary movement thereof. The tear device causes the detachment of the two glued flaps, outer 111A and inner 111'A following the detachment of the glue and not the breakage of the cardboard. The tear device, according to a preferred embodiment, may comprise a second set ofouter suction cups 45, engageable against the outer gluedflap 111A of the tray, associated with ahook 54, actuatable via alinear actuator 55, for the engagement in hooking with the glued side oftray 111 from the inside thereof. Thehook 54, which may also be associated to one of the twogripper elements 43, engaged with a pair of gluedflaps 111A, 111'A, as shown for example infigure 7 , is positioned along the side oftray 111 so as not to be engaged with the inner glued flap 111'A. It is in fact positioned more centrally with respect to the second set ofouter suction cups 45. According to a further embodiment, not shown, thehook 54 may be absent or be associated with all the gripper elements. - According to the preferred embodiment, as shown schematically in the sequence of
figures 8A-8D , the outer 45 and inner 44 suction cups are closed in sequence against the gluedflaps 111A and 111'A, while thehook 54 is in an extracted rest position. The vacuum generation within the same ensures the grip on the corresponding gluedflaps 111A and 111'A. Thehook 54 is then moved by translation to the engagement position thereof with the inner glued side of the tray. Theouter suction cups 45 and thehook 54 are made to rotate around afulcrum 47, placed about around at the outer glued flap fold 111A, through the engagement of alinear actuator 48 on a tiltingarm 49 rigidly connected in parallel toarm 46. During the rotation step, thehook 54 helps to pull the gluedflap 111A preventing the detachment of theouter suction cup 45, carrying out a synergistic action to obtain the detachment of the gluedflaps 111A and 111'A with minimum deformation oftray 111. Thehook 54 is then returned to an extracted resting position. - According to the simplified embodiment, without
hook 54, the closing and tearing cycle of the pair ofsuction cups suction cups outer suction cups 45 are rotated aroundfulcrum 47, placed about at the outer glued flap fold 111A, through the engagement of thelinear actuator 48 on the tiltingarm 49 rigidly connected in parallel toarm 46. - Different tear devices may form part of the invention in place or integration of the
outer suction cups 45 and of thehook 54 described. - The suction
cup gripping head 42 also comprises a pair ofpresser elements 50 placed at the remaining twosides 111B oftray 111, respectively, orthogonal to the gluedflaps 111A and 111'A. Eachpresser element 50, preferably provided with a wide flat thrust surface, is hinged at the fold ofside 111B oftray 111, orthogonal to gluedflaps 111A and 111'A, and connected to alinear actuator 51. Thepresser elements 50 rotate orthogonally to the tearing direction of the outer gluedflap 111A to act each on a side orthogonal to the gluing side of the tray, to complete the opening of theorthogonal sides 111B and flattening of the tray, as shown infigure 9 . - The suction
cup gripping head 42 also comprises, in a position inside the quadrilateral perimeter, a plurality of verticallinear actuators 52 arranged orthogonally to the tray plane, provided at the lower ends withsuction cups 53, adapted to keep theopen tray 111 open and facilitate the removal thereof from the suctioncup gripping head 42 for the deposition on a stack of open trays by pushing the open tray downwards (figure 10 ). - The method for feeding mixed batches of primary products to a packaging machine, according to the invention, comprises the steps of:
- picking in sequence multiples of
primary products 11, arranged in a row, from at least two distinct picking points 18 through at least onehandling unit 20, from continuously fed channels or from a tray or a pallet of trays; - depositing in tracking the rows of primary products along rows that are side by side to one another on an
inlet conveyor 30 that continuously transfers the rows ofprimary products 11 towards apackaging machine 12. - The tracking deposition step may relate to a whole row of products engaged by a
gripper 23, deposited along the same row of theinlet conveyor 30, or it may relate to subsets of the product row engaged bygripper 23, deposited along multiple rows of theinlet conveyor 30. - The tracking deposition step may be carried out within
channels 31 of theinlet conveyor 30 or directly on the smooth conveyor. - The method for feeding mixed batches of primary products to a packaging machine, according to the invention, also comprises the step of:
- feeding
primary products 11 on theinlet conveyor 30 through aportionable channeling system 17, parallel to the deposition with thehandling unit 20. The side-by-side rows of primary products present on theinlet conveyor 30 are partly fed by thehandling unit 20 and partly by theportionable channeling system 17. - The method according to the invention finally comprises a feeding step of
empty trays 111 from theloading station 21 towards a tray processing unit and an empty tray processing step. - The empty tray processing step comprising the steps of:
- engaging glued
flaps 111A of the tray on opposite sides with a plurality ofinner suction cups 44 and with a tear device, such as a plurality ofouter suction cups 45 opposite to theinner suction cups 44 and/or ahook 54; - detaching each outer glued
flap 111A with a rotary action of the tear device and with such a rotary action aligning it with the plane of thetray 111; - flattening the remaining two
sides 111B of thetray 111, orthogonal to the gluedflaps 111A and 111'A, with a rotary action orthogonal to the first one through a pair of hingedpresser elements 50; - depositing the tray thus opened onto a stack of trays.
- The group for feeding mixed batches of primary products and the relative method according to the present invention have the advantage of implementing a line end able to work in mixed palletizing in a compact manner.
- Advantageously, this solution in some embodiments thereof allows simultaneously working with one or more types of primary products coming from palletized products and with one or more products coming from the filling lines. This solution allows operation even with idle system parts, for example production can be done with primary products of one type only, coming directly from the production/filling lines and not from the depalletizing group.
- The feeding group according to the present invention, in particular, simultaneously works with one or more types of primary products coming from palletized products and with one or more primary products coming from the filling lines.
- Moreover, the suction cup gripping head of the tray recycling system of the feeding group according to the present invention advantageously allows ungluing the glued flaps without tearing the cardboard.
- The group for feeding mixed batches of primary products and the relative method thus conceived may undergo numerous modifications and variations, all falling within the invention; moreover, all details can be replaced with technically equivalent elements. In practice, the materials used as well as the sizes, can be any, according to technical requirements.
Claims (11)
- Group for feeding mixed batches of primary products to a packaging machine, characterized in that it comprises at least one handling unit, or robot, (20) for handling primary products (11), at least two distinct picking points (18, 21) for picking primary products (11) and a continuous inlet conveyor (30) towards a packaging machine, wherein said at least one handling unit (20) is equipped with a gripping head (22) comprising a gripper (23) for gripping multiples of primary products arranged in a row, said at least one handling unit (20) being operatively associated with at least one of said primary products (11) picking points (18, 21) for picking a row of primary products and operatively associated with said inlet conveyor (30) for positioning at least a part of said row of primary products in tracking on said inlet conveyor (30).
- Feeding group according to claim 1, characterized in that said inlet conveyor (30) is provided with a plurality of channels (31) for transporting primary products on separate rows, and provided with a mechanical selection device (33) at the outlet end, for the formation of batches (11') of primary products (11).
- Feeding group according to claim 2, characterized in that at least one of said channels (31) of the inlet conveyor (30) is not operatively associated with said at least one handling unit (20) and is connected to a portionable channeling system (17) for feeding with a continuous flow of primary products (11), in parallel to the feeding on the remaining channels (31) through said at least one handling unit (20).
- Feeding group according to claim 1, characterized in that said picking point of said handling unit (20) is a loading station (21) for loading a tray (111) or a pallet of trays (111).
- Feeding group according to claim 4, characterized in that it comprises a tray-recycling system (40) exiting from the loading station (21) towards a tray transforming unit that picks them up, opens them and stacks them.
- Feeding group according to claim 5, characterized in that said tray transforming unit comprises a robot (41) equipped with a suction cup head (42) identifying a quadrilateral perimeter of adjustable size, said suction cup head (42) comprising four gripper elements (43) placed in pairs at the ends of two opposite sides of the perimeter, associable with pairs of opposite glued flaps, outer and inner, (111A, 111'A) of the tray (111), wherein each gripper element (43) is equipped with a first set of inner suction cups (44) that are engageable from the inside against said inner glued flap (111'A) of the tray, and a tear device, preferably comprising a second set of outer suction cups (45) that are engageable from the outside against said outer glued flap (111A) of the tray, said tear device being applied to an arm (46) tilting about a fulcrum (47) adapted to detach said outer glued flap (111A) of the tray with its own rotary movement, wherein said tear device can also comprise a movable hook (54) for the engagement from the inside with the glued side of the tray (111).
- Feeding group according to claim 6, characterized in that said suction cup head (42) also comprises a pair of hinged presser elements (50), placed respectively at the remaining two sides (111B) of the tray (111), orthogonal to the glued flaps (111A, and 111'A), adapted to act each on one side orthogonal to the gluing side of the tray that complete the opening and the flattening of the tray, said suction cup head (42) also comprising in an internal position in said quadrilateral perimeter a plurality of linear actuators (52) arranged orthogonally with respect to the plane of the tray, provided at the lower ends with suction cups (53), adapted to keep the open tray raised and facilitate its extraction from the suction cup head (42) for the deposit on a stack of open trays.
- Method for feeding mixed batches of primary products to a packaging machine, characterized in that it comprises the steps of:- picking in a sequence multiples of primary products (11), arranged in a row, from at least two distinct picking points (18, 21) through at least one handling unit (20);- depositing in tracking said rows of primary products along rows that are side by side to one another on an inlet conveyor (30) that continuously transfers said rows of primary products (11) towards a packaging machine (12),wherein said step of depositing in tracking relates to an entire row of products gripped by a gripper (23) along a same row of the inlet conveyor (30) or subsets of the row of products gripped by the gripper (23) along more rows of the inlet conveyor (30), and wherein said step of depositing in tracking can be carried out inside channels (31) of said inlet conveyor (30).
- Method according to claim 8, characterized in that said step of picking rows of primary products from at least two distinct picking points (18) through at least one handling unit (20) is carried out by picking from continuously fed channels or from loading stations (21) for loading a tray or a pallet of trays.
- Method according to claims 8 or 9, characterized in that it comprises the step of feeding said primary products (11) on the inlet conveyor (30) through a portionable channeling system (17), in parallel to the deposit with the handling unit (20), said rows that are side by side to one another of primary products on said inlet conveyor (30) being each fed by said handling unit (20) or by said portionable channeling system (17).
- Method according to any of claims 8 to 10, characterized in that it comprises a step of feeding empty trays (111) from the loading station (21) towards a tray transforming unit, and a step of transforming empty trays, wherein said tray transforming step comprises the steps of:- engaging pairs of glued flaps (111A, 111'A) of the tray on opposite sides with a plurality of inner suction cups (44) and a tear device;- detaching each outer glued flap (111A) and aligning it to the plane of the tray (111) with a rotary action of the tear device;- flattening the remaining two sides (111B) of the tray (111), orthogonal to the glued flaps (111A, 111'A), with a rotary action orthogonal to the first one through a pair of hinged presser elements (50);- depositing the tray thus open onto a stack of trays.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITUA2016A002844A ITUA20162844A1 (en) | 2016-04-22 | 2016-04-22 | SUPPLY GROUP OF MIXED LOTS OF PRIMARY PRODUCTS AND RELATIVE METHOD. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3235739A1 true EP3235739A1 (en) | 2017-10-25 |
EP3235739B1 EP3235739B1 (en) | 2020-01-29 |
Family
ID=56684156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17167219.9A Active EP3235739B1 (en) | 2016-04-22 | 2017-04-20 | Method and assembly for feeding mixed batches of primary products |
Country Status (3)
Country | Link |
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EP (1) | EP3235739B1 (en) |
ES (1) | ES2786773T3 (en) |
IT (1) | ITUA20162844A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115009634A (en) * | 2021-03-03 | 2022-09-06 | 法麦凯尼柯数据股份公司 | Packaging device and method for packaging products |
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EP1459985A1 (en) * | 2003-03-17 | 2004-09-22 | Blueprint Automation B.V. | Assembly and method for collecting togheter different goods |
DE202005019906U1 (en) * | 2005-12-19 | 2007-04-26 | Autefa Automation Gmbh | Package-handling plant assembling e.g. packs of mixed drinks bottles, has series of conveyors feeding bottles of individual type to transfer stations feeding mixed package conveyor |
DE102009037833A1 (en) * | 2009-08-18 | 2011-02-24 | Bms Maschinenfabrik Gmbh | Method for producing mixed box from sorted boxes in bottle handling system in beverage industry, involves transferring bottles of sorted boxes into associated mixed boxes by transferring device |
DE102014107558A1 (en) * | 2014-05-28 | 2015-12-03 | Bms Maschinenfabrik Gmbh | Apparatus and method for repacking articles |
-
2016
- 2016-04-22 IT ITUA2016A002844A patent/ITUA20162844A1/en unknown
-
2017
- 2017-04-20 EP EP17167219.9A patent/EP3235739B1/en active Active
- 2017-04-20 ES ES17167219T patent/ES2786773T3/en active Active
Patent Citations (4)
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EP1459985A1 (en) * | 2003-03-17 | 2004-09-22 | Blueprint Automation B.V. | Assembly and method for collecting togheter different goods |
DE202005019906U1 (en) * | 2005-12-19 | 2007-04-26 | Autefa Automation Gmbh | Package-handling plant assembling e.g. packs of mixed drinks bottles, has series of conveyors feeding bottles of individual type to transfer stations feeding mixed package conveyor |
DE102009037833A1 (en) * | 2009-08-18 | 2011-02-24 | Bms Maschinenfabrik Gmbh | Method for producing mixed box from sorted boxes in bottle handling system in beverage industry, involves transferring bottles of sorted boxes into associated mixed boxes by transferring device |
DE102014107558A1 (en) * | 2014-05-28 | 2015-12-03 | Bms Maschinenfabrik Gmbh | Apparatus and method for repacking articles |
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CN115009634A (en) * | 2021-03-03 | 2022-09-06 | 法麦凯尼柯数据股份公司 | Packaging device and method for packaging products |
CN115009634B (en) * | 2021-03-03 | 2023-11-14 | 法麦凯尼柯数据股份公司 | Packaging device and method for packaging a product |
Also Published As
Publication number | Publication date |
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ITUA20162844A1 (en) | 2017-10-22 |
ES2786773T3 (en) | 2020-10-13 |
EP3235739B1 (en) | 2020-01-29 |
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