EP0043171B1 - Apparatus for packing articles fed in a continuous flow - Google Patents
Apparatus for packing articles fed in a continuous flow Download PDFInfo
- Publication number
- EP0043171B1 EP0043171B1 EP81200728A EP81200728A EP0043171B1 EP 0043171 B1 EP0043171 B1 EP 0043171B1 EP 81200728 A EP81200728 A EP 81200728A EP 81200728 A EP81200728 A EP 81200728A EP 0043171 B1 EP0043171 B1 EP 0043171B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- packing material
- rollers
- crank
- articles
- 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.)
- Expired
Links
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Classifications
-
- 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
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5827—Tear-lines provided in a wall portion
- B65D75/585—Tear-lines provided in a wall portion the tear-lines being broken by deformation or bending
-
- 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
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
Definitions
- the invention relates to an apparatus for packing articles or bundles of articles, comprising means for continuously feeding the articles to be packed in spaced apart relation, means for the continuous supply of a continuous web of packing material, means for wrapping said material around the articles, means for advancing the wrap, means for adhering the longitudinal sealing seam portions to each other, and means for forming the transverse sealing seams and severing these seams.
- Such an apparatus is known from US-A-3420035 and is called a flow pack apparatus.
- US-A-3397505 discloses a perforating device in a packaging machine for developing a series of slits extending in the longitudinal direction, adjacent the folded edge of a folded web, which slits assist the subsequent opening of the folded web, said perforating device comprising two rollers driven in synchronism and of which one roller is formed by a serrated roller knife and the other roller provides an anvil.
- a perforated line is produced in the web which extends in parallelism with the direction of advance of the web.
- the rotational velocity of the two rollers driven in synchronism should be adaptable to the varying velocities of the web of packing material at the movement at which the perforating knife cooperates with the anvil, since the perforating knife together with the anvil should have nearly the same velocity as the web of packing material during their cooperation, as otherwise the web of material would tear.
- a perforating device is provided consisting of two rollers driven in synchronism, of which the one roller is provided with at least one perforating knife and of which the other roller is provided with at least an anvil for cooperating with the perforating knife, and means for guiding the web of packing material between said rollers.
- rollers are in driving connection with each other, while one of said rollers is in driving connection with a crank mechanism the connecting rod of which is coupled at its other end to a second crank mechanism which is in driving connection with a driving shaft of the packing apparatus, one of the crank mechanisms being mounted for displacement so that the axis of the pivot shafts of the two crank mechanisms may be displaced in parallel relation with respect to each other.
- the driving shaft is coupled to the second crank mechanism by means of a chain, means being provided for adjusting the position of the second crank mechanism with respect to the driving shaft. In this way the location at which the perforation line is formed on the packing material may be adjusted.
- the packaging material is coated by a fusible sealing agent which agent is subsequently heated for sealing by fusion the perforations.
- the package comprises a sheet of packing material enclosing the article, said material being closed by means of a longitudinal sealing seam 1 and two transverse sealing seams 2 and 2'.
- a perforated line is indicated formed in the packing material and extending around the article except for the upperside along which the longitudinal sealing seam extends.
- a cap-shaped portion 4 may be torn off.
- the perforated line 3 may be folded downwards along a pivot line extending in the plane where the perforated line does not extend, so that the article 5 may be removed from the package, while the exposed portion of the article if eatable may be bitten off, whereafter the cap-shaped portion 4 may be folded back again.
- the device for producing a perforated line in the web of packing material comprises two rollers 6 and 7 of which the roller 6 is provided with a perforating knife 8 capable of cooperating with an anvil 9 in the roller 7.
- the perforating knife 8 is supported within the roller 6 through taps 10 by springs not shown.
- the rollers 6 and 7 are journaled in the arm 11 fixed to the upright 12 of the packing apparatus.
- On said upright 12 a further arm 13 is fixed in which a roll of packing material 14 is supported. From said roll 14 the web packing material 15 is guided through guiding means 16, 17 and 18 between the rollers 6 and 7 and thereafter over the guiding means 19 and 20 to the proper packing portion of the packing machine.
- the rollers 6 and 7 are connected with the shafts 21 and 22 respectively on which intermeshing gears 23 and 24 are provided.
- the ends of the shafts 21 and 22 are supported in the arm 25, through which the shaft 21 continues and is coupled with a first crank 26.
- Said first crank 26 is driven by the connecting rod 27, the other end of which is connected with a second crank 28 being driven through the chain sprocket 29 and the chain 30 by the driving shaft 31 (see fig. 7).
- the second crank 28 is provided with a stub axle 32 received for displacement in the plate 33, in which said stub axle 32 is fixed by the nut 34 so that after releasing said nut 34 said stub axle can be shifted up and down by means of the screw 35 with the actuating wheel 36, by which the axis of the pivot shaft of the second crank 28 can be displaced in parallel relation with the pivot shaft of the crank 26.
- cranks 26 and 28 The operation of the cranks 26 and 28 is illustrated schematically in fig. 6, in which the first crank is indicated by the line 26', the second crank by the line 28' and the connecting rod by the line 29'.
- the axis of rotation of the second crank is M and that of the first crank N.
- By rotating the second crank 28' its end a moves along the circular path 37, in which the movement of the crank is uniform as indicated by the points b, c w, x, which points are equally spaced apart, while for covering the distance between each two points the same time is necessary.
- the end a' of the crank 26' will move along the circular path 38 and will be positioned at the moments determined by the points a, b .... w, x at the points a', b' ....
- rollers 6 and 7 are not driven directly through the crank mechanism 26, 27 and 28 but through a deceleration mechanism, for example consisting of intermeshing gears, which deceleration mechanism is arranged between the crank mechanism 26, 27 and 28 and the driven shaft 21 so that along two or more parts of complete revolution the rollers 6 and 7 obtain the velocity distribution produced by the crank mechanism 26, 27 and 28 as shown in fig. 6, so that two or more perforating knifes and cooperating anvils can be mounted in the rollers 6 and 7 respectively.
- a deceleration mechanism for example consisting of intermeshing gears
- the chain sprocket 29 is driven through a chain 30 by the driving shaft 31, said driving shaft making a complete revolution for each product passed through the packing apparatus.
- the chain 30 is guided through two fixed guiding wheels 37 and 38 along two displacable guiding wheels 39 and 40 to the chain sprocket 29.
- the guiding wheel 39 is journaled in a pivotable arm 41, which arm can be moved up and down by means of the threaded rod 42 and the actuating wheel 43.
- the guiding wheel 40 is supported in a pivotable arm 44 to which a spring 45 is fixed, by which the guiding wheel 40 is always maintained in engagement with the chain 30.
- the position of the guiding wheel 39 is varied, by which also the guiding wheel 40 is displaced and the chain sprocket 29 is rotated with respect to the driving shaft 31, by which the locations where the perforated lines are formed onto the packing material can be adjusted.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Description
- The invention relates to an apparatus for packing articles or bundles of articles, comprising means for continuously feeding the articles to be packed in spaced apart relation, means for the continuous supply of a continuous web of packing material, means for wrapping said material around the articles, means for advancing the wrap, means for adhering the longitudinal sealing seam portions to each other, and means for forming the transverse sealing seams and severing these seams. Such an apparatus is known from US-A-3420035 and is called a flow pack apparatus.
- In such an apparatus excellent packed articles or products are obtained in an extremely rapid way, however, the obtained packages are difficult to be opened especially when a strong and tenacious packing material is used.
- From GB-A-749182 is known to provide packages of the type produced by the above-mentioned apparatus with a simple line of perforations extending transversely to the length of the packed article, so that the package has a cap-shaped portion which may be readily torn off along the perforated line.
- US-A-3397505 discloses a perforating device in a packaging machine for developing a series of slits extending in the longitudinal direction, adjacent the folded edge of a folded web, which slits assist the subsequent opening of the folded web, said perforating device comprising two rollers driven in synchronism and of which one roller is formed by a serrated roller knife and the other roller provides an anvil. Thus by this perforating device a perforated line is produced in the web which extends in parallelism with the direction of advance of the web.
- It is the object of the invention to provide an apparatus of the above-mentioned type provided with means for producing a perforated line in the web transverse to its direction of advance so that easily to be opened packages for articles are obtained.
- In order that in one and the same apparatus articles of different lengths may be packed, for which the velocity at which the web of packing material is advanced should be variable, also the rotational velocity of the two rollers driven in synchronism should be adaptable to the varying velocities of the web of packing material at the movement at which the perforating knife cooperates with the anvil, since the perforating knife together with the anvil should have nearly the same velocity as the web of packing material during their cooperation, as otherwise the web of material would tear.
- This object is achieved, in that in the apparatus according to the invention, with respect to the direction of advance of the web of packing material before said means for forming a wrap, a perforating device is provided consisting of two rollers driven in synchronism, of which the one roller is provided with at least one perforating knife and of which the other roller is provided with at least an anvil for cooperating with the perforating knife, and means for guiding the web of packing material between said rollers. The rollers are in driving connection with each other, while one of said rollers is in driving connection with a crank mechanism the connecting rod of which is coupled at its other end to a second crank mechanism which is in driving connection with a driving shaft of the packing apparatus, one of the crank mechanisms being mounted for displacement so that the axis of the pivot shafts of the two crank mechanisms may be displaced in parallel relation with respect to each other.
- In this way, by displacing the one crank mechanism the rotational velocity of both rollers at the moment of cooperation between the knife and the anvil may be changed, while the rollers always make one complete revolution during a predetermined invariable unit of time, the overall speed of revolution being determined by the rotational velocity of the driving shaft.
- Preferably the driving shaft is coupled to the second crank mechanism by means of a chain, means being provided for adjusting the position of the second crank mechanism with respect to the driving shaft. In this way the location at which the perforation line is formed on the packing material may be adjusted.
- In this way a packed article is obtained of which the package has a cap-shaped portion which may be readily torn off along the perforated line, whereas when the ends of the perforated line are spaced apart from the adjacent edges of the web of packing material, which spacings are at least equal to the width of the longitudinal sealing seam, said cap-shaped portion of the package has a pivot line so that said cap-shaped portion may be folded back around the article again.
- In order to prevent that by the perforated line the package becomes less air-tight, at least at the location of the perforated line the packaging material is coated by a fusible sealing agent which agent is subsequently heated for sealing by fusion the perforations.
- The invention will be explained in more detail while refering to the embodiments shown in the drawing.
- Figure 1 shows in three dimensional views a packed article produced by the apparatus according to the invention, and figure 2 the same article, in which a cap-shaped portion of the package is torn open.
- Fig. 3 shows in side-elevation the device according to the invention for forming a perforated line in the web of packing material.
- Fig. 4 shows on an enlarged scale said perforating device in front-view.
- Fig. 5 is a cross-section along the line V-V in figure 4.
- Fig. 6 shows schematically the operation of the crank mechanism of the perforating device.
- Fig. 7 shows in side-elevation the driving mechanism of the perforating device.
- As shown in fig. 1 and 2 the package comprises a sheet of packing material enclosing the article, said material being closed by means of a
longitudinal sealing seam 1 and twotransverse sealing seams 2 and 2'. With reference number 3 a perforated line is indicated formed in the packing material and extending around the article except for the upperside along which the longitudinal sealing seam extends. As shown in fig. 2 in which the package is illustrated reversely with respect to fig. 1, a cap-shaped portion 4 may be torn off. along theperforated line 3 and may be folded downwards along a pivot line extending in the plane where the perforated line does not extend, so that thearticle 5 may be removed from the package, while the exposed portion of the article if eatable may be bitten off, whereafter the cap-shaped portion 4 may be folded back again. - As shown in the figures 3, 4 and 5 the device for producing a perforated line in the web of packing material comprises two
rollers roller 6 is provided with a perforating knife 8 capable of cooperating with ananvil 9 in theroller 7. The perforating knife 8 is supported within theroller 6 throughtaps 10 by springs not shown. Therollers further arm 13 is fixed in which a roll ofpacking material 14 is supported. From saidroll 14 theweb packing material 15 is guided through guidingmeans rollers means - The
rollers shafts gears shafts arm 25, through which theshaft 21 continues and is coupled with afirst crank 26. Saidfirst crank 26 is driven by the connectingrod 27, the other end of which is connected with asecond crank 28 being driven through thechain sprocket 29 and thechain 30 by the driving shaft 31 (see fig. 7). Thesecond crank 28 is provided with astub axle 32 received for displacement in theplate 33, in which saidstub axle 32 is fixed by thenut 34 so that after releasing saidnut 34 said stub axle can be shifted up and down by means of thescrew 35 with the actuatingwheel 36, by which the axis of the pivot shaft of thesecond crank 28 can be displaced in parallel relation with the pivot shaft of thecrank 26. - The operation of the
cranks circular path 37, in which the movement of the crank is uniform as indicated by the points b, c ....w, x, which points are equally spaced apart, while for covering the distance between each two points the same time is necessary. The end a' of the crank 26' will move along thecircular path 38 and will be positioned at the moments determined by the points a, b .... w, x at the points a', b' .... w', x', so that the overall movement of the second crank is not uniform. In passing the points n', o', p', q' the movement of the crank 26' is approximately uniform, the speed along said stretch being equal to the speed of the web ofpacking material 15, so that along said stretch the perforating knife 8 cooperates with theanvil 9. - When by means of the actuating
wheel 36 the distance between the axis of rotation M and the axis of rotation N is changed, as indicated by the position N', the points a", b" .... w", x" are passed, the points n", o", p", q" indicating clearly that the rotational speed of therollers anvil 9. - It is also possible that the
rollers crank mechanism crank mechanism shaft 21 so that along two or more parts of complete revolution therollers crank mechanism rollers - As shown in fig. 7 the
chain sprocket 29 is driven through achain 30 by thedriving shaft 31, said driving shaft making a complete revolution for each product passed through the packing apparatus. Thechain 30 is guided through two fixed guidingwheels wheels chain sprocket 29. The guidingwheel 39 is journaled in apivotable arm 41, which arm can be moved up and down by means of the threadedrod 42 and the actuatingwheel 43. The guidingwheel 40 is supported in a pivotable arm 44 to which aspring 45 is fixed, by which the guidingwheel 40 is always maintained in engagement with thechain 30. By rotating the actuatingwheel 43 the position of the guidingwheel 39 is varied, by which also the guidingwheel 40 is displaced and thechain sprocket 29 is rotated with respect to thedriving shaft 31, by which the locations where the perforated lines are formed onto the packing material can be adjusted.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8003809A NL8003809A (en) | 1980-07-01 | 1980-07-01 | METHOD AND APPARATUS FOR PACKING ARTICLES SUPPLIED IN A CONTINUOUS FLOW |
NL8003809 | 1980-07-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0043171A1 EP0043171A1 (en) | 1982-01-06 |
EP0043171B1 true EP0043171B1 (en) | 1984-09-26 |
Family
ID=19835544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81200728A Expired EP0043171B1 (en) | 1980-07-01 | 1981-06-26 | Apparatus for packing articles fed in a continuous flow |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0043171B1 (en) |
DE (1) | DE3166313D1 (en) |
NL (1) | NL8003809A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103523296A (en) * | 2011-12-06 | 2014-01-22 | 朱双海 | Packing case made of packing materials |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2936458B2 (en) * | 1995-10-31 | 1999-08-23 | 株式会社フジキカイ | Collective packaging method and apparatus for granular articles |
EP0980834A1 (en) * | 1998-07-23 | 2000-02-23 | The Procter & Gamble Company | Package with child deterrent means |
US7174697B2 (en) | 2004-12-20 | 2007-02-13 | Kimberly-Clark Worldwide, Inc. | System and process for packaging products |
ITBO20120704A1 (en) | 2012-12-21 | 2014-06-22 | Mario Spatafora | METHOD AND EQUIPMENT FOR PACKAGING ARTICLES |
WO2015143299A1 (en) * | 2014-03-20 | 2015-09-24 | Printpack Illinois, Inc. | Easy open flow wrappers |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3397505A (en) * | 1965-03-15 | 1968-08-20 | Eastman Kodak Co | Packaging machine |
US3420035A (en) * | 1966-06-08 | 1969-01-07 | Kleer Vu Ind Inc | Packaging machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB749182A (en) * | 1952-10-03 | 1956-05-23 | Rose Brothers Ltd | Improvements in ice cream packages |
DE2338907A1 (en) * | 1972-08-04 | 1974-02-14 | Bunzl & Biach Ag | POCKET PACK FOR PAPER OR PULP TISSUE |
-
1980
- 1980-07-01 NL NL8003809A patent/NL8003809A/en not_active Application Discontinuation
-
1981
- 1981-06-26 EP EP81200728A patent/EP0043171B1/en not_active Expired
- 1981-06-26 DE DE8181200728T patent/DE3166313D1/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3397505A (en) * | 1965-03-15 | 1968-08-20 | Eastman Kodak Co | Packaging machine |
US3420035A (en) * | 1966-06-08 | 1969-01-07 | Kleer Vu Ind Inc | Packaging machine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103523296A (en) * | 2011-12-06 | 2014-01-22 | 朱双海 | Packing case made of packing materials |
Also Published As
Publication number | Publication date |
---|---|
DE3166313D1 (en) | 1984-10-31 |
EP0043171A1 (en) | 1982-01-06 |
NL8003809A (en) | 1982-02-01 |
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