EP1899225B1 - Method and machine for producing a sealed wrapping about a product, and wrapping obtained using such a method - Google Patents
Method and machine for producing a sealed wrapping about a product, and wrapping obtained using such a method Download PDFInfo
- Publication number
- EP1899225B1 EP1899225B1 EP06763550A EP06763550A EP1899225B1 EP 1899225 B1 EP1899225 B1 EP 1899225B1 EP 06763550 A EP06763550 A EP 06763550A EP 06763550 A EP06763550 A EP 06763550A EP 1899225 B1 EP1899225 B1 EP 1899225B1
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- EP
- European Patent Office
- Prior art keywords
- lateral
- portions
- wall
- wrapping
- product
- 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.)
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Classifications
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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
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
- B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
- B65D75/08—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by folding
Definitions
- the sealed wrappings are normally formed about the respective products by sealing the free longitudinal edges of the web to form a tubular wrapping about the products; sealing the tubular wrapping transversely at respective ends of each product to form a respective sealed "pillow” type wrapping; and then detaching the sealed wrappings from one another.
- US2003192287A1 discloses a method for hermetically sealing a bulk article wherein a strip of wrapping material is initially positioned onto an article such that extending ends of the wrapping material strip extend from away from an edge of the article, each end having a different length.
- the article is rotated to cause the ends of the strip to cover an uncovered side of the article with a fin-like section extending therefrom away from the article which can be sealed without contacting the article; the fin-like section is cooled and folded onto the top of the article so as to form an axial seam. Lateral ends of the wrapping material strip are then sealed to complete the hermetic sealing process.
- EP1167201A1 discloses a method for wrapping cigars providing for feeding the cigars continuously along a given path, along which a sheet of wrapping material is folded about each cigar; the sheet of wrapping material is closed about the cigar and at the opposite ends to form a closed wrapping, and the closed wrapping is sealed.
- a sealed wrapping as claimed in Claim 30 and, preferably, in any one of the following Claims depending directly or indirectly on Claim 30.
- Number 1 in Figure 1 indicates as a whole a machine for producing a sealed wrapping 2 about a substantially parallelepiped-shaped product 3.
- wrapping 2 is formed from a substantially rectangular sheet 4 of preferably impermeable heat-seal packing material.
- wrapping 2 formed about product 3 substantially adheres to product 3, comprises two major lateral walls 5, two minor lateral walls 6 crosswise to major lateral walls 5, and two end walls 7 crosswise to major lateral walls 5 and minor lateral walls 6, and is sealed hermetically about product 3 along three sides by means of respective seals: one on a minor lateral wall 6, and two on respective end walls 7.
- machine 1 comprises a packing unit 8, in turn comprising a packing wheel 9 rotating in steps about an axis 10 perpendicular to the Figure 1 plane, and a belt conveyor 11 comprising a belt 12 looped about two pulleys 13 which rotate about respective axes 14 parallel to axis 10, and define, on belt 12, a substantially horizontal work branch extending radially with respect to wheel 9.
- Conveyor 11 is operated in steps and in time with wheel 9, so that a pocket 15 on wheel 9 and a pocket 19 on conveyor 11 are arrested simultaneously at transfer station 17.
- flaps 35 are folded onto respective end walls 7 by respective fixed surfaces 37 (indicated by the dash line in Figure 1 ) extending, on opposite sides of path P, downstream from sealing devices 34, and terminating upstream from unloading station 20, which defines the last work station and comprises two sealing devices 38 located on opposite sides of path P and moved back and forth towards each other and towards sealed wrapping 2 to seal flaps 35 to respective end walls 7 and so complete sealed wrapping 2.
- flap 30 formed by sealing portions 26 equals the thickness of product 3 and, once folded, mates perfectly with the relative minor lateral wall 6; and each flap 35 formed by sealing portions 25 equals half the thickness of product 3 and, when folded onto respective end wall 7, does not project transversely from end wall 7.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Description
- The present invention relates to a method and machine for producing a sealed wrapping about a product, and to the sealed wrapping obtained using such a method.
- Packing machines for producing sealed wrappings about respective products are known to employ a packing unit, which is fed with a succession of products for wrapping, and with a continuous web of normally impermeable heat-seal packing material.
- The sealed wrappings are normally formed about the respective products by sealing the free longitudinal edges of the web to form a tubular wrapping about the products; sealing the tubular wrapping transversely at respective ends of each product to form a respective sealed "pillow" type wrapping; and then detaching the sealed wrappings from one another.
- Though widely used, by being easy to implement, the above method has serious drawbacks by normally being fairly inaccurate in terms of both product handling during packing, and the appearance of the sealed wrappings themselves. That is, it is difficult to achieve firm adhesion of the sealed wrapping about the product, which problem is further compounded when dealing with delicate, fragile products.
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US2003192287A1 discloses a method for hermetically sealing a bulk article wherein a strip of wrapping material is initially positioned onto an article such that extending ends of the wrapping material strip extend from away from an edge of the article, each end having a different length. The article is rotated to cause the ends of the strip to cover an uncovered side of the article with a fin-like section extending therefrom away from the article which can be sealed without contacting the article; the fin-like section is cooled and folded onto the top of the article so as to form an axial seam. Lateral ends of the wrapping material strip are then sealed to complete the hermetic sealing process. -
EP1167201A1 discloses a method for wrapping cigars providing for feeding the cigars continuously along a given path, along which a sheet of wrapping material is folded about each cigar; the sheet of wrapping material is closed about the cigar and at the opposite ends to form a closed wrapping, and the closed wrapping is sealed. - It is an object of the present invention to provide a method of producing a sealed wrapping about a product, designed to at least partly eliminate the aforementioned drawbacks.
- According to the present invention, there is provided a method of producing a sealed wrapping about a product, as claimed in Claim 1 and, preferably, in any one of the following Claims depending directly or indirectly on Claim 1.
- According to the present invention, there is also provided a machine for producing a sealed wrapping about a product, as claimed in
Claim 15 and, preferably, in any one of the following Claims depending directly or indirectly onClaim 15. - According to the present invention, there is also provided a sealed wrapping, as claimed in
Claim 30 and, preferably, in any one of the following Claims depending directly or indirectly onClaim 30. - A number of non-limiting embodiments of the present invention will be described by way of example with reference to the accompanying drawings, in which:
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Figure 1 shows a partial, schematic view of a preferred embodiment of the machine according to the present invention, and a sequence of steps for producing the sealed wrapping on the machine and using the method according to the present invention; -
Figures 2 to 6 show larger-scale views of some of the operating steps inFigure 1 for producing the sealed wrapping according to the present invention. - Number 1 in
Figure 1 indicates as a whole a machine for producing a sealedwrapping 2 about a substantially parallelepiped-shaped product 3. - As shown in
Figures 2-6 ,wrapping 2 is formed from a substantiallyrectangular sheet 4 of preferably impermeable heat-seal packing material. - With reference to
Figure 6 ,wrapping 2 formed aboutproduct 3 substantially adheres toproduct 3, comprises two majorlateral walls 5, two minorlateral walls 6 crosswise to majorlateral walls 5, and two end walls 7 crosswise to majorlateral walls 5 and minorlateral walls 6, and is sealed hermetically aboutproduct 3 along three sides by means of respective seals: one on a minorlateral wall 6, and two on respective end walls 7. - As shown in
Figure 1 , machine 1 comprises a packing unit 8, in turn comprising a packing wheel 9 rotating in steps about anaxis 10 perpendicular to theFigure 1 plane, and abelt conveyor 11 comprising abelt 12 looped about twopulleys 13 which rotate aboutrespective axes 14 parallel toaxis 10, and define, onbelt 12, a substantially horizontal work branch extending radially with respect to wheel 9. - Wheel 9 comprises a number of
pockets 15 equally spaced aboutaxis 10, and each for receiving arespective product 3 together with arespective sheet 4 of packing material at aloading station 16, and for feedingproduct 3 along an initial semicircular portion of a packing path P extending fromloading station 16 to atransfer station 17 interposed between wheel 9 andbelt conveyor 11. - Along said initial portion of path P, each
product 3, housed insiderelative pocket 15, is fed through a number of work stations whererespective sheet 4 is folded and sealed aboutproduct 3 to define atubular wrapping 18 aboutproduct 3. -
Belt 12 ofconveyor 11 in turn comprises a succession of pockets 19 (only a few of which are shown inFigure 1 ) equally spaced alongbelt 12 and defined by partitions extending transversely with respect to the longitudinal extension ofbelt 12. -
Conveyor 11 is operated in steps and in time with wheel 9, so that apocket 15 on wheel 9 and apocket 19 onconveyor 11 are arrested simultaneously attransfer station 17. - Consequently, and as explained in more detail below,
pocket 19, at the next step ofconveyor 11, extractsproduct 3, wrapped in respectivetubular wrapping 18, radially frompocket 15, and feedsproduct 3 along an end portion of packing path P, which coincides with the work branch ofbelt 12 and extends fromtransfer station 17 to anunloading station 20, via a number of work stations wheretubular wrapping 18 is sealed completely aboutproduct 3 to form respective sealedwrapping 2. - Machine 1 also comprises a feed line for
feeding products 3 to wheel 9, and which comprises a known chain conveyor 21 (shown only partly inFigure 1 ) having a number of seats 22 (only one shown inFigure 1 ) equally spaced alongchain conveyor 21, and each for housing arespective product 3 and feedingproduct 3 continuously to loadingstation 16. -
Sheets 4 of packing material, on the other hand, are fed to loadingstation 16 by a feed line 23 operated in time with wheel 9 andchain conveyor 21 tofeed sheets 4 successively in a substantially vertical direction tangent to wheel 9, so that, when apocket 15 is arrested atloading station 16, asheet 4 is positioned between wheel 9 andchain conveyor 21, exactlyopposite pocket 15. -
Loading station 16 also has a feed device defined by a known pusher 24 (only shown partly inFigure 1 ), which moves betweenchain conveyor 21 and wheel 9, cooperates withseats 22 onchain conveyor 21 to expelrespective product 3 from eachseat 22 reachingloading station 16, and moves radially with respect to wheel 9 to insertproduct 3 inside astationary pocket 15 atloading station 16. - As stated, along packing path P, machine 1 comprises a number of work stations which, as described in detail below, provide for folding and sealing each
sheet 4 aboutrespective product 3, asproduct 3 travels along path P. - As shown in
Figure 1 , in actual use, eachproduct 3, housed inside arelative seat 22 with a major lateral wall of the product facing upwards, is fed toloading station 16 in a travelling direction substantially crosswise to its longitudinal axis. - On reaching
loading station 16, eachproduct 3 is engaged and inserted bypusher 24 into apocket 15 arrested atloading station 16. As it is being transferred fromseat 22 topocket 15,product 3 intercepts asheet 4 positioned beforehand in front ofpocket 15 by feed line 23, so that, as the product is inserted insidepocket 15,sheet 4 is forced to fold into a U aboutproduct 3. - In this connection, it should be pointed out that the size of
sheet 4, with respect to the size ofproduct 3, is such that, once the sheet is inserted completely insiderespective pocket 15, respective pairs of portions ofsheet 4 project from the free sides ofproduct 3. More specifically (Figure 2 ), two pairs ofportions 25 project, crosswise to wheel 9, from respective end portions ofproduct 3, and a pair ofportions 26 project, radially with respect to wheel 9, from a relative narrow lateral wall ofproduct 3. Also,sheet 4 is folded into a U aboutrespective product 3, so thatportions 26 differ in size, and so that thelarger portion 26 is located upstream from theother portion 26 in the travelling direction ofpocket 15 along path P. - While the newly loaded
pocket 15 is still stationary atloading station 16, which is also a sealing station, the first step insealing sheet 4 about product 3 (Figure 3 ) is performed by a known heat-seal sealing device 27, which is moved in a direction substantially tangent to wheel 9 to engage thelarger portion 26, move it towards theother portion 26, and pressportions 26 one onto the other and onto anend portion 28 of a fixedfolding surface 29 positioned substantially contacting the outer periphery of wheel 9 along a portion of path P immediately downstream fromloading station 16. The seal formed bysealing device 27 and/or the seals referred to hereinafter, however, may also be formed using cold glue applied beforehand tosheet 4. -
Sealing device 27 pressesportions 26 againstend portion 28 with sufficient pressure and long enough to meltportions 26 completely, and then withdraws back to the start position. - The sealing of
portions 26 forms a minorlateral wall 6 ofwrapping 2; and aflap 30, which projects transversely from minorlateral wall 6, is connected to minorlateral wall 6 along a longitudinal edge 31 oftubular wrapping 18, and defines a lateral seal oftubular wrapping 18. - At the next step of wheel 9,
flap 30 is folded by foldingsurface 29 along edge 31 and onto relative minorlateral wall 6, and is fed, so folded, to the next work station where it is sealed to respective minor lateral wall 6 (Figure 4 ) by asealing device 32 moving back ad forth radially with respect to wheel 9. So folded,sheet 4 defines aboutproduct 3 respectivetubular wrapping 18, which has two open end portions, each comprising a pair of parallel, facingportions 25, and a pair of parallel, facingportions 33 interposed betweenportions 25. - Once
flap 30 is sealed,product 3 is fed totransfer station 17 where apocket 19 extractsproduct 3 fromrelative pocket 15 and feedsproduct 3 to the next work station, which comprises two gripper-type sealing devices 34 located on opposite sides of path P to closetubular wrapping 18 aboutproduct 3 and so form respective sealedwrapping 2. - This work station performs two operations, a first of which comprises folding
portions 33 of each end portion towards each other and ontoproduct 3 by means of known folding devices not shown, and a second of which comprises gripping togetherportions 25 of each end portion oftubular wrapping 18 by means of sealingdevices 34 to form, for each end portion, a respective end wall 7, and arespective flap 35 projecting transversely from end wall 7 and connected to end wall 7 along afold line 36 parallel to a transverse edge oftubular wrapping 18 and extending substantially along the centreline of respective end wall 7 (Figure 5 ). - Like
flap 30,flaps 35 are folded onto respective end walls 7 by respective fixed surfaces 37 (indicated by the dash line inFigure 1 ) extending, on opposite sides of path P, downstream fromsealing devices 34, and terminating upstream fromunloading station 20, which defines the last work station and comprises twosealing devices 38 located on opposite sides of path P and moved back and forth towards each other and towards sealed wrapping 2 to sealflaps 35 to respective end walls 7 and so complete sealedwrapping 2. - In a preferred embodiment, compressed-air nozzles are provided on opposite sides of path P at
transfer station 17 to blow air intotubular wrapping 18 to ensure the end portions oftubular wrapping 18 are fully open, and thatportions portions 25ad 33. - In connection with the above, it should be pointed out that, in an alternative embodiment,
products 3 may be conveyed bychain conveyor 21 with their respective longitudinal axes parallel to the travelling direction, so that, when eachproduct 3 is inserted, together withrespective sheet 4, insiderelative pocket 15, an end portion, as opposed to a narrow lateral wall, ofproduct 3 faces radially outwards of wheel 9. - In this case, too, however, sealed
wrapping 2 is formed aboutrespective product 3 in the same way as described above, the only difference being that the resulting sealedwrapping 2 is sealed on only one end wall 7 and on both minorlateral walls 6. - As regards the size of
sheet 4, this obviously depends on the size ofproduct 3, and, in the example shown, is such that the size ofportions 25 and one ofportions 26 equals the thickness ofproduct 3, and the size of theother portion 26 equals twice the thickness ofproduct 3. - As such,
flap 30 formed by sealingportions 26 equals the thickness ofproduct 3 and, once folded, mates perfectly with the relative minorlateral wall 6; and eachflap 35 formed by sealingportions 25 equals half the thickness ofproduct 3 and, when folded onto respective end wall 7, does not project transversely from end wall 7. - The above proportions ensure reliable sealing and an attractive appearance of sealed
wrapping 2. - In variations not shown, however, the size of
sheet 4 may be proportioned differently from the examples shown, i.e.flap 30 may be less than the thickness ofproduct 3, and flaps 35 less than half the thickness ofproduct 3, while still ensuring effective sealing of the respective walls. - To conclude, it should be pointed out that the method according to the present invention provides, at each step, for extremely accurate handling of
products 3, and for preventing harmful pressure onproducts 3, particularly when sealingportions sheets 4 aboutrespective products 3. - Another important point to note is that, given the neat, compact form of sealed
wrappings 2 produced using the method according to the present invention, and the absence of any flaps projecting or easily detachable from the body of the wrapped product, the wrapped products are of maximum compactness, which is particularly advantageous at the next product packing stage.
Claims (32)
- A method of producing a sealed wrapping (2) about a product (3) presenting a lateral wall and two end walls perpendicular to the lateral wall; the method comprising the steps of:folding a sheet (4) of impermeable packing material into a U about the product (3), so that the folded sheet (4) leaves three free sides of the product (3) at the lateral wall and at the two end walls, and so that the folded sheet (4) has, at the free side of the product (3) at the lateral wall, a pair of facing, substantially parallel projecting lateral portions (26), and the folded sheet (4) has, at each free side of the product (3) at the end walls, a pair of facing, substantially parallel projecting end portions (25);gripping together the end portions (25) in each pair;connecting the end portions (25) to each other to form a respective end wall (7) of the sealed wrapping (2), and an end flap (35) projecting transversely from the end wall (7) and defining a seal of the end wall (7);folding each end flap (35) onto the relative end wall (7); andconnecting by sealing each end flap (35) firmly to the end wall (7) in said folded position;the method is characterized in that it comprises, before gripping and connecting the end portions (25) in each pair, the further steps of:gripping together the lateral portions (26);connecting the lateral portions (26) to each other to form a respective lateral wall (6) of the sealed wrapping (2), and a lateral flap (30) projecting transversely from the lateral wall (6) and defining a seal of the lateral wall (6);folding the lateral flap (30) onto the lateral wall (6); andconnecting by sealing the lateral flap (30) firmly to the lateral wall (6) in said folded position so that the open end portions of the tubular wrapping (18) are closed after the lateral flap (30) produced by gripping said lateral portions (26) is folded and connected to the lateral wall (6).
- A method as claimed in Claim 1, wherein the portions (25; 26) in said pairs are connected to each other commencing with the pair of lateral portions (26) projecting from the lateral wall of the product (3) and defining, when connected to each other, the respective lateral wall (6) of the sealed wrapping (2), and the relative lateral flap (30); the sheet (4) so folded defining about the product (3) a tubular wrapping (18) having respective open end portions projecting from the product (3), and each of which comprises a pair of facing, substantially parallel first portions (25), and a pair of facing second portions (33) substantially crosswise to said first portions (25).
- A method as claimed in Claim 2, wherein the step of gripping and connecting said lateral portions (26) is performed by only moving one of the two lateral portions (26) from its original position wherein the two lateral positions (26) are positioned facing and substantially parallel to each other, and by maintaining the other lateral portion (26) stationary in said original position.
- A method as claimed in Claim 3, wherein, during the gripping and connecting step, one of the two lateral portions (26) is maintained substantially contacting a fixed member (28), and the other lateral portion (26) is moved towards the fixed member (28) and pressed onto the first lateral portion (26) by a folding member (27) movable to and from the fixed member (28).
- A method as claimed in Claim 4, wherein the movable said folding member (27) is also a member for connecting the lateral portions (26) to each other, and in particular a heat-seal sealing device.
- A method as claimed in one of Claims 2 to 5, wherein the two open end portions of the tubular wrapping (18) are closed simultaneously.
- A method as claimed in Claim 6, wherein each open end portion of the tubular wrapping (18) is closed by gripping together said first portions (25) by means of gripping means (34), and connecting them to each other to form a respective end wall (7) of the sealed wrapping (2), and a respective end flap (35) which projects transversely from the end wall (7) and defines a seal of the end wall (7).
- A method as claimed in Claim 7, wherein the gripping means (34) comprise two sealing jaws (34); and the step of gripping said first portions (25) together is performed by engaging each first portion (25) by means of a respective jaw (34), and closing the jaws (34) to move each first portion (25) parallel to itself and towards the other first portion (25).
- A method as claimed in Claim 7 or 8, and comprising the step of folding the second portions (33) of each open end portion of the tubular wrapping (18) inwards of the tubular wrapping (18) and onto the product (3) before the respective first portions (25) are gripped together.
- A method as claimed in one of Claims 7 to 9, wherein the sealed wrapping (2) is substantially parallelepiped-shaped, and comprises two major lateral walls (5), two minor lateral walls (6) crosswise to the major lateral walls (5), and two end walls (7) crosswise to the major lateral walls (5) and minor lateral walls (6); and the wall produced by connecting said lateral portions (26) defines a minor lateral wall (6) of the sealed wrapping (2).
- A method as claimed in Claim 10, wherein, for each end portion of the tubular wrapping (18), the wall produced by connecting said first portions (25) of the end portion defines an end wall (7) of the sealed wrapping (2).
- A method as claimed in any one of the foregoing Claims, wherein the flaps (30; 35) are folded onto the respective walls (6; 7) by contrast with a fixed member (29; 37).
- A machine for producing a sealed wrapping (2) about a product (3) presenting a lateral wall and two end walls perpendicular to the lateral wall; the machine (1) comprising:first folding means (24) for folding a sheet (4) of impermeable packing material into a U about the product (3), so that the folded sheet (4) leaves three free sides of the product (3) at the lateral wall and at the two end walls, and so that the folded sheet (4) has, at the free side of the product (3) at the lateral wall, a pair of facing, substantially parallel projecting lateral portions (26), and the folded sheet (4) has, at each free side of the product (3) at the end walls, a pair of facing, substantially parallel projecting end portions (25);end sealing means (34) for gripping the end portions (25) in each pair to each other and for connecting the end portions (25) to each other to form a respective end wall (7) of the sealed wrapping (2), and ad end flap (35) projecting transversely from the end wall (7) and defining a seal of the end wall (7);end folding means (37) for folding each end flap (35) onto the relative end wall (7); andend connecting means (38) for connecting by sealing each end flap (35) to the end wall (7) in said folded position;the machine is characterized in that it comprises, upstream from the end sealing means (34),:lateral sealing means (27, 28) for gripping the lateral portions (26) in each pair to each other and for connecting the lateral portions (26) to each other to form a respective lateral wall (6) of the sealed wrapping (2), and a lateral flap (30) projecting transversely from the lateral wall (6) and defining a seal of the lateral wall (6);lateral folding means (29) for folding the lateral flap (30) onto the lateral wall (6); andlateral connecting means (32; 38) for connecting by sealing the lateral flap (30) to the lateral wall (6) in said folded position so that the open end portions of the tubular wrapping (18) are closed after the lateral flap (30) produced by gripping said lateral portions (26) is folded and connected to the lateral wall (6).
- A machine as claimed in Claim 13, and comprising:a packing unit (8) having seats (15, 19), each for housing a respective product (3) and a respective sheet (4) of packing material, and movable along a path (P) extending from a loading station (16) for loading the products (3) and respective sheets (4), to an unloading station (20) for unloading the products (3) complete with the respective sealed wrappings (2); andfeed means (21) for feeding the products (3) successively to said loading station (16).
- A machine as claimed in Claim 14, wherein said first folding means (24) are located at the loading station (16), and are movable to and from the packing unit (8) to transfer each product (3), together with a respective sheet (4) of packing material, into a respective seat (15), so that the sheet (4) folds about the product (3).
- A machine as claimed in Claim 14 or 15, wherein:the packing unit (8) comprises a wheel (9) having pocket seats (15) and rotating about an axis (10) crosswise to said path (P); and a linear conveyor (11) tangent to the wheel (9) at a transfer station (17) and having respective seats (19) movable along the path (P);the lateral sealing device (27, 28) is associated with the wheel (9) to grip and connect to each other a pair of lateral portions (26) projecting from the lateral wall of the relative product (3) housed, in use, inside a respective pocket seat (15), so as to partly seal each sheet (4) about the respective product (3) and define a tubular wrapping (18) about the product (3);the end sealing device (34) is associated with the linear conveyor (11) to seal each tubular wrapping (18) and form a respective sealed wrapping (2).
- A machine as claimed in Claim 16, wherein:each tubular wrapping (18) has open end portions projecting from the product (3), and each of which comprises a pair of facing, substantially parallel first portions (25), and a pair of facing second portions (33) substantially crosswise to said first portions (25); andthe end sealing device (34) comprises two grippers (34) located on opposite sides of said path (P) and each for gripping together the first portions (25) of a respective open end portion of the tubular wrapping (18), and for connecting them to each other to form a respective wall (7) of the sealed wrapping (2), and a respective end flap (35).
- A machine as claimed in Claim 17, wherein each gripper (34) comprises two heat-seal jaws.
- A machine as claimed in Claim 17 or 18, and comprising second folding means for folding the second portions (33) of each open end portion of the tubular wrapping (18) inwards of the tubular wrapping (18) and onto the product (3) before the respective first portions (25) are gripped together.
- A machine as claimed in one of Claims 16 to 19, wherein the lateral sealing device (27, 28) comprises a fixed member (28), and a movable member (27) movable across the path (P) to move one of said lateral portions (26) towards the other lateral portion (26), to press both the lateral portions (26) onto the fixed member (28), and to connect the two lateral portions (26) firmly to each other to define the respective lateral wall (6) of the sealed wrapping (2), and the respective lateral flap (30).
- A machine as claimed in Claim 20, wherein the movable member (27) is a heat-seal device.
- A machine as claimed in Claim 20 or 21, wherein:said fixed member (28) forms part of said lateral folding means (29), which fold said lateral flap (30), by contrast, onto the respective wall (6); andsaid lateral folding means (29; 37) also comprise a further fixed member (37) associated with the linear conveyor (11) and located downstream from the lateral sealing device (32) in the travelling direction of the products (3) along the path (P) to fold the relative flaps (35) onto the respective walls (7).
- A machine as claimed in one of Claims 16 to 22, wherein said lateral and end connecting means (32; 38) for connecting the flaps (30, 35) firmly to the respective walls (6, 7) comprise a first connecting device (32) associated with the wheel (9), and a second connecting device (38) associated with the linear conveyor (11).
- A machine as claimed in Claim 23, wherein said lateral and end second connecting device (32, 38) are heat-seal devices.
- A machine as claimed in one of Claims 13 to 24, wherein the wheel (9) and the linear conveyor (11) are step-operated.
- A machine as claimed in one of Claims 17 to 25, wherein the sealed wrapping (2) is substantially parallelepiped-shaped, and comprises two major lateral walls (5), two minor lateral walls (6) crosswise to the major lateral walls (5), and two end walls (7) crosswise to the major lateral walls (5) and minor lateral walls (6); sealing of said lateral portions (26) defining a minor lateral wall (6) of the sealed wrapping (2), and sealing of the end portions (25) of the tubular wrapping (18) defining respective end walls (7) of the sealed wrapping (2).
- A sealed wrapping for a product (3) presenting a lateral wall and two end walls perpendicular to the lateral wall;
the sealed wrapping (2) is substantially parallelepiped-shaped, and comprises two major lateral walls (5), two minor lateral walls (6) crosswise to the major lateral walls (5), and two end walls (7) crosswise to the major lateral walls (5) and minor lateral walls (6);
the sealed wrapping (2) has a lateral seal on a minor lateral wall (6) at the lateral wall of the product (3), and two end seals substantially crosswise to the lateral seal and located on respective end walls (7) at the two end walls of the product (3);
each end seal of the relative end wall (7) is defined by an end flap (35) that initially was projecting transversely from the end wall (7), is folded onto the end wall (7), and is connected by sealing to the end wall (7) in said folded position;
the wrapping (2) is characterized in that the lateral seal of the relative minor lateral wall (6) is defined by a lateral flap (30) that initially was projecting transversely from the minor lateral wall (6), is folded onto the minor lateral wall (6) before sealing the end seals, and is connected by sealing to the minor lateral wall (6) in said folded position. - A wrapping as claimed in Claim 27, wherein the lateral flap (30) is connected to the respective minor lateral wall (6) along a longitudinal edge (31) connecting the minor lateral wall (6) to a major lateral wall (5).
- A wrapping as claimed in Claim 28, wherein the lateral flap (30) is the same width as the relative minor lateral wall (6).
- A wrapping as claimed in Claim 27, 28 or 29, wherein each end flap (35) is connected to the relative end wall (7) along a respective fold line (36), which is substantially parallel to a transverse edge connecting the end wall (7) to a major lateral wall (5), and extends substantially along the centreline of the end wall (7).
- A wrapping as claimed in Claim 30, wherein each end flap (35) is of a width equal to approximately half the width of the relative end wall (7).
- A wrapping as claimed in Claim 27, wherein the wrapping is formed from a sheet (4) of impermeable packing material, which is substantially rectangular and of such a size that, when folded into a U about the product (3), respective facing, substantially parallel pairs of portions (25, 26) project outwards of each free side of the product (3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO20050392 ITBO20050392A1 (en) | 2005-06-08 | 2005-06-08 | METHOD AND MACHINE FOR THE REALIZATION OF A SEALED BOX AROUND A PRODUCT AND CASE WITH THE ABOVE METHOD |
PCT/EP2006/062955 WO2006131527A1 (en) | 2005-06-08 | 2006-06-07 | Method and machine for producing a sealed wrapping about a product, and wrapping obtained using such a method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1899225A1 EP1899225A1 (en) | 2008-03-19 |
EP1899225B1 true EP1899225B1 (en) | 2013-02-13 |
Family
ID=36764530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06763550A Not-in-force EP1899225B1 (en) | 2005-06-08 | 2006-06-07 | Method and machine for producing a sealed wrapping about a product, and wrapping obtained using such a method |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1899225B1 (en) |
ES (1) | ES2406736T3 (en) |
IT (1) | ITBO20050392A1 (en) |
WO (1) | WO2006131527A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2477907B1 (en) | 2009-09-18 | 2017-05-10 | Focke & Co. (GmbH & Co. KG) | Packages, in particular for cigarettes, and method and device for producing the same |
DE102022201157B3 (en) | 2022-02-03 | 2023-04-20 | Kallfass Verpackungsmaschinen Gmbh | Method of packaging an item and packaged item |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20080254A1 (en) * | 2008-04-23 | 2009-10-24 | Azionaria Costruzione Macchine Spa | METHOD AND MACHINE FOR THE REALIZATION OF A SEALED BOX AROUND A ARTICLE AND A PACKAGE THEREFORE OBTAINED. |
ITBO20110719A1 (en) * | 2011-12-15 | 2013-06-16 | So Te Ma Pack S R L | DEVICE FOR REALIZING AN EXTREME TRANSVERSE FIN IN A PRODUCT WINDING CASE. |
KR101806939B1 (en) | 2017-02-22 | 2017-12-08 | 이상민 | The processor Play for recycling of expanded polystyrene foam |
IT201900004159A1 (en) * | 2019-03-22 | 2020-09-22 | Gd Spa | Apparatus and procedure for the packaging of products in packaging film |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20000361A1 (en) | 2000-06-19 | 2001-12-19 | Gd Spa | METHOD AND MACHINE FOR CIGAR WRAPPING. |
US6860089B2 (en) | 2002-04-10 | 2005-03-01 | Detail Machine Company | Pillow pack wrapping technique and related apparatus |
-
2005
- 2005-06-08 IT ITBO20050392 patent/ITBO20050392A1/en unknown
-
2006
- 2006-06-07 WO PCT/EP2006/062955 patent/WO2006131527A1/en active Application Filing
- 2006-06-07 EP EP06763550A patent/EP1899225B1/en not_active Not-in-force
- 2006-06-07 ES ES06763550T patent/ES2406736T3/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2477907B1 (en) | 2009-09-18 | 2017-05-10 | Focke & Co. (GmbH & Co. KG) | Packages, in particular for cigarettes, and method and device for producing the same |
EP2477907B2 (en) † | 2009-09-18 | 2022-01-26 | Focke & Co. (GmbH & Co. KG) | Packages, in particular for cigarettes, and method and device for producing the same |
DE102022201157B3 (en) | 2022-02-03 | 2023-04-20 | Kallfass Verpackungsmaschinen Gmbh | Method of packaging an item and packaged item |
Also Published As
Publication number | Publication date |
---|---|
ES2406736T3 (en) | 2013-06-07 |
ITBO20050392A1 (en) | 2005-09-07 |
EP1899225A1 (en) | 2008-03-19 |
WO2006131527A1 (en) | 2006-12-14 |
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