EP0498273A1 - Procédé et appareil pour emballer une pile d'articles plats - Google Patents

Procédé et appareil pour emballer une pile d'articles plats Download PDF

Info

Publication number: EP0498273A1
Authority: EP; European Patent Office
Prior art keywords: stack; folded; onto; web section; end region
Prior art date: 1991-02-07
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

Application number

EP92101372A

Other languages

German (de)

English (en)

Other versions

EP0498273B1 (fr

Inventor

Aloys Winnemöller

Heinrich Frommeyer

Werner Wieneke

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Windmoeller and Hoelscher KG

Original Assignee

Windmoeller and Hoelscher KG

Priority date (The priority date 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 date listed.)

1991-02-07

Filing date

1992-01-28

Publication date

1992-08-12

1992-01-28 Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG

1992-08-12 Publication of EP0498273A1 publication Critical patent/EP0498273A1/fr

1995-03-29 Application granted granted Critical

1995-03-29 Publication of EP0498273B1 publication Critical patent/EP0498273B1/fr

2012-01-28 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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
- 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
- B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
- B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
- B65B11/12—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents and then to form closing folds of similar form at opposite ends of the tube

Definitions

the invention relates to a method for packaging a stack of flat objects, preferably a stack of bags provided with handles, the height of which is greater than the width of a bag, in a packaging web section made of paper and / or plastic film or the like, in which preferably compressed stack, a web section is knocked over and the edge regions of the web section overlapping one another on a stack side are glued to one another to form a tubular sleeve encasing the stack, and in which the end regions of the tubular sleeve projecting laterally in stacks from opposite sides onto the narrow sides of the stack to form Folded corner folds and each corner fold folded onto a wrapped stack side and glued to it.
the object of the invention is therefore to propose a method of the type specified at the outset which can be carried out using devices with a reduced constructional and structural outlay.
this object is achieved in a method of the generic type in that first one side of each end region is folded over the longer edge of the still open stack side and the adjacent side parts of the end region are streaked out in the plane of the folded side, so that this also results in the opposite side of the end region is folded around the opposite longer edge on the stack side to form corner folds projecting above the stacks, and that the corner folds are then folded over and glued to the other two narrow sides of the wrapping adjacent to the initially still open stack side.
the method according to the invention can be carried out mechanically with a reduced constructional and structural outlay, because only one retractable folding element has to be provided for turning in opposite sides of the end regions of the wrapping projecting over the stack, the folding element being designed such that the parts are then extended laterally for painting can.
this first folding element basically only devices must be provided for folding the corner envelopes formed by spreading out the first folded page.
Another particular advantage is that the fact that the corner folds are formed by spreading out only one folded-in side means that they are open at the side, so that the extended spreading folding elements can be pulled out of the extended corner folds at right angles to the spreading direction. Due to the simplified method, a machine can be built to carry it out, in which the complete wrapping and packaging of the stack can be carried out in only one station.
stacks are to be packed which, due to the nature of the stacked flat objects, tend to spring open, such as stacks of bags provided with handles, the stacks exert a strong force on the wrapping after they have been relieved by the means which compress them, under which the wrapping the protruding end areas of the envelopes formed bottom-like closures can burst again.
Stacks of bags with handles are usually stacked to form stacks with a straight edge in that partial stacks are formed, which are then stacked offset to the stacks in such a way that handle regions lying one above the other between the bottom regions of two partial stacks lie.
the packaged bags provided with handles can also be folded over a transverse line to reduce their length.
the "width" of a bag in the packaged stack in the sense of the preamble of claim 1 is therefore also to be understood as the width of the bag folded before stacking.
compressed stacks of this type tend to spring open, so that they exert considerable explosive forces on a package enveloping them.
the packaging envelope formed by the method according to the invention is particularly suitable for packing stacks that tend to spring open, such as stacks of bags with handles of greater thickness, because they are folded Formed lateral closures of the wrapping to counteract a springing up of the packaged stack by the fact that the corner folds are turned outwards onto the other two narrow sides of the wrapping adjacent to the initially still open stack side.
end regions of the tubular sleeve are expediently designed to be longer than half the width of the still open stack side, but shorter than the entire width. This configuration ensures that the mutually opposite sides of the end regions of the casing overlap one another, so that a tight seal is formed.
the opposite side of the end region folded in by spreading out the first folded-in side is also provided with glue applications, for example in the form of glue dabs, on the inside in the overlap region.
a device for carrying out the method according to the invention is characterized in accordance with the invention by the parallel and parallel grids and / or plates compressing the compressed stack, between which the stack is inserted under them loop-like entrainment of a web section held in front of the entry of the grids and / or plates is, through the end areas of the web sections on the fourth stack side successive elements, by expandable folding plate pairs that fold one side of the end area over a stack edge and then move out laterally to pull out the corner folds over the narrow stack edge, and by the corner folds Flaps or the like
the expandable folding plate pairs are appropriately beveled at their end sides by 45 ° in accordance with the angles of the corner folds that are formed.
glue application nozzles are provided in a known manner, which provide the folded sides and corner folds or the wrapped narrow sides with glue applications.
first press channel 1 shows a first press channel 1, in which a compressed stack of bags 3 is pushed in the direction of a packaging web section 4 by means of a slide 2.
the packaging web section 4 has the length required for wrapping the stack and hangs in a slot which is formed by a correspondingly small distance between the first press channel 1 and the second press channel 5.
the stack of bags 3 has already been pushed into the press channel 5 through the packaging web section 4, which acts as if it were a curtain, the slider 2 already being in its partially retracted position.
the second press channel 5 consists essentially of a lower fixed plate 8 and an upper rake-like grid formed from individual bars 9. The width of the rake-like grid is dimensioned such that the packaging web section 4 protrudes laterally beyond the stack 3 on both end faces, so that folding elements can act on the end regions of the packaging web section.
FIG. 4 The position of the stack 3 shown in FIG. 2 and the packaging web section partially enveloping it is shown in perspective in FIG. 4. From Fig. 4 it can also be seen that partial stacks of the bags are offset from one another in such a way that the handles of a partial stack each lie between the bottom areas of adjacent partial stacks. From Fig. 4 it is clear that the spring-up of the stack formed from the partial stacks is strongest in the area of the handles 10 because the individual handles consist of material of greater thickness than the thickness of the material of the individual bags. Elements not shown are then gem. Fig. 4 knocked down the upper flag 7 of the packaging web section and provided the lower edge of the flag 7 with a row of glue dots 11. Then the lower flag 6 is flipped upwards and pressed against the row of glue points 11, so that the tubular or sleeve-like wrapping of the stack shown in FIG. 6 results from the wrapping web section wrapped around it.
a pair of folding plates 12 moves into the region of the packaging web section 4 projecting laterally from the stack, so that the configuration shown in FIG. 7 results.
two glue points 13 and 14 are applied to the inside of the flag 7 and then the two folding plates of the pair of folding plates 12 move apart in the direction of arrow B (FIG. 8).
the extended position of the two folding plates of the pair of folding plates 12 is shown in FIG. 9.
further glue pads 15 are applied to the narrow sides of the packaging, onto which the corner folds 16 and 17 are folded by means (not shown) after the folding plate pair 12 has been moved out.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Basic Packing Technique (AREA)
Packaging Of Special Articles (AREA)
Containers And Plastic Fillers For Packaging (AREA)

EP92101372A 1991-02-07 1992-01-28 Procédé et appareil pour emballer une pile d'articles plats Expired - Lifetime EP0498273B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4103745		1991-02-07
DE4103745A DE4103745A1 (de)	1991-02-07	1991-02-07	Verfahren und vorrichtung zum verpacken eines stapels flacher gegenstaende

Publications (2)

Publication Number	Publication Date
EP0498273A1 true EP0498273A1 (fr)	1992-08-12
EP0498273B1 EP0498273B1 (fr)	1995-03-29

Family

ID=6424583

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP92101372A Expired - Lifetime EP0498273B1 (fr)	1991-02-07	1992-01-28	Procédé et appareil pour emballer une pile d'articles plats

Country Status (5)

Country	Link
US (1)	US5249408A (fr)
EP (1)	EP0498273B1 (fr)
JP (1)	JP3386485B2 (fr)
CA (1)	CA2060765C (fr)
DE (2)	DE4103745A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN103043243A (zh) *	2013-01-15	2013-04-17	王秀来	塑料袋自动折叠捆扎机的一种尾部折叠装置
WO2014029494A1 (fr) *	2012-08-24	2014-02-27	Khs Gmbh	Dispositif d'emballage d'objets

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0798212B1 (fr) *	1996-03-27	2000-01-19	The Procter & Gamble Company	Procédé pour envelopper sous tension des unités formées d'articles compressible flexibles
JP4548580B2 (ja) *	2004-06-02	2010-09-22	東洋製罐株式会社	袋口折込装置及び袋口折込方法
US7360344B2 (en) *	2004-09-17	2008-04-22	Fpna Acquisition Corporation	Method and apparatus for sleeve or band-type packaging of a compressible article
EP1860033B1 (fr) *	2006-05-26	2011-01-12	MTC - Macchine Trasformazione Carta Srl	Dispositif d'envelopper une pile de feuilles
ES2335297T3 (es) *	2006-05-26	2010-03-24	M T C - Macchine Trasformazione Carta S.R.L.	Dispositivo de alimentacion de papel para una maquina precintadora para bloques de material en hojas.
US9296171B2 (en) *	2008-03-11	2016-03-29	Frito-Lay North America, Inc.	Method for making a flat bottom pillow pouch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE244356C (fr) *
GB951268A (en) *	1961-10-10	1964-03-04	Forgrove Mach	Improvements in methods of wrapping cartons and packages
US3507089A (en) *	1967-05-11	1970-04-21	Brown & Williamson Tobacco	Bundling machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1285646A (en) *	1914-04-08	1918-11-26	Chester T Drake	Wrapping-machine.
US1575723A (en) *	1921-09-26	1926-03-09	Package Machinery Co	Wrapping machine and method of wrapping articles
US3619976A (en) *	1970-01-27	1971-11-16	William C Kerker	Bag bundling machine
US3771280A (en) *	1972-04-10	1973-11-13	Potdevin Machine Co	End folding machine
JPS5326535B2 (fr) *	1973-04-07	1978-08-02
JPS5311915B2 (fr) *	1973-07-19	1978-04-25
JPS571024A (en) *	1981-05-01	1982-01-06	Hakura Seiki Kk	Automatic sealing device for bagged sliced bread
JPS5926411A (ja) *	1982-08-05	1984-02-10	ニチパツク株式会社	自動梱包機
JPS649103A (en) *	1987-06-29	1989-01-12	Gakujo Nakamura	Packaging apparatus

1991
- 1991-02-07 DE DE4103745A patent/DE4103745A1/de not_active Withdrawn
1992
- 1992-01-28 EP EP92101372A patent/EP0498273B1/fr not_active Expired - Lifetime
- 1992-01-28 DE DE59201738T patent/DE59201738D1/de not_active Expired - Lifetime
- 1992-01-31 JP JP01686392A patent/JP3386485B2/ja not_active Expired - Fee Related
- 1992-02-06 CA CA002060765A patent/CA2060765C/fr not_active Expired - Lifetime
- 1992-02-07 US US07/832,592 patent/US5249408A/en not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE244356C (fr) *
GB951268A (en) *	1961-10-10	1964-03-04	Forgrove Mach	Improvements in methods of wrapping cartons and packages
US3507089A (en) *	1967-05-11	1970-04-21	Brown & Williamson Tobacco	Bundling machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2014029494A1 (fr) *	2012-08-24	2014-02-27	Khs Gmbh	Dispositif d'emballage d'objets
CN103043243A (zh) *	2013-01-15	2013-04-17	王秀来	塑料袋自动折叠捆扎机的一种尾部折叠装置
CN103043243B (zh) *	2013-01-15	2015-11-25	王秀来	塑料袋自动折叠捆扎机的一种尾部折叠装置

Also Published As

Publication number	Publication date
CA2060765C (fr)	2002-12-10
DE4103745A1 (de)	1992-08-13
EP0498273B1 (fr)	1995-03-29
JP3386485B2 (ja)	2003-03-17
DE59201738D1 (de)	1995-05-04
JPH05278705A (ja)	1993-10-26
US5249408A (en)	1993-10-05
CA2060765A1 (fr)	1992-08-08

Legal Events

Date	Code	Title	Description
1992-06-26	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1992-08-12	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): BE DE GB IT
1993-02-03	17P	Request for examination filed	Effective date: 19921207
1994-07-20	17Q	First examination report despatched	Effective date: 19940603
1995-02-10	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-03-29	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE DE GB IT
1995-03-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19950329 Ref country code: BE Effective date: 19950329
1995-05-04	REF	Corresponds to:	Ref document number: 59201738 Country of ref document: DE Date of ref document: 19950504
1995-05-10	ITF	It: translation for a ep patent filed	Owner name: BUGNION S.P.A.
1995-10-04	GBV	Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]	Effective date: 19950329
1996-02-02	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1996-02-02	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1996-03-20	26N	No opposition filed
2010-05-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: IT Payment date: 20100120 Year of fee payment: 19
2010-06-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20100131 Year of fee payment: 19
2010-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES Effective date: 20100824
2011-12-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110128

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