EP0695685A2 - Procédé pour remplir des matières en vrac dans des sacs - Google Patents

Procédé pour remplir des matières en vrac dans des sacs Download PDF

Info

Publication number: EP0695685A2
Authority: EP; European Patent Office
Prior art keywords: perforation; sack; bag; filled; hold
Prior art date: 1994-06-08
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

EP95108805A

Other languages

German (de)

English (en)

Other versions

EP0695685B1 (fr

EP0695685A3 (fr

Inventor

Rolf Klein

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.)

Librawerk Maschinenfabrik GmbH

Original Assignee

Librawerk Maschinenfabrik GmbH

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.)

1994-06-08

Filing date

1995-06-08

Publication date

1996-02-07

1995-06-08 Application filed by Librawerk Maschinenfabrik GmbH filed Critical Librawerk Maschinenfabrik GmbH

1996-02-07 Publication of EP0695685A2 publication Critical patent/EP0695685A2/fr

1996-03-13 Publication of EP0695685A3 publication Critical patent/EP0695685A3/xx

1999-01-13 Application granted granted Critical

1999-01-13 Publication of EP0695685B1 publication Critical patent/EP0695685B1/fr

2015-06-08 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
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C3/00—Labelling other than flat surfaces
- B65C3/26—Affixing labels to non-rigid containers, e.g. bottles made of polyethylene or boxes to be inflated by internal air pressure prior to labelling
- 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
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B31/08—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being adapted to pierce the container or wrapper
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/08—Label feeding
- B65C9/18—Label feeding from strips, e.g. from rolls
- B65C9/1865—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip
- B65C9/1876—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip and being transferred by suction means

Definitions

the invention relates to a method for filling bulk goods into bags, in which bulk goods are filled into a bag in the desired amount, the bag is closed and then perforated in some areas.
the size of the perforation openings is of course chosen to be significantly smaller than the particle diameter of the bulk material, on the one hand to not significantly impair the strength of the sack and on the other hand to reliably prevent particles from escaping. If such a perforated or "needled" sack is subsequently transported or stacked, air in the sack can escape through the perforation openings.
the object of the invention is therefore to provide a solution with which it is also possible for products of this type to obtain filled sacks which are virtually air-free, ie are only filled with bulk material.
This object is achieved according to the invention with a method of the type mentioned at the outset in that after perforation, air contained in the sack is sucked through the perforation and the bag is subsequently sealed again in the area of the perforation.
a sack made of plastic film, in particular polyethylene, is used, the perforated area of which is closed by gluing on a piece of film, a self-adhesive plastic label preferably being used as the piece of film. Since such filled sacks are usually provided with a label anyway, the need to close the perforated area after the suction has been carried out by applying the label, which also serves as a tight seal, no additional process step is required which would delay the entire filling process.
a hold-down device is pressed onto the area of the bag to be perforated, then perforation needles are pressed through correspondingly arranged openings in this hold-down device into the area of the bag to be perforated and subsequently pulled out again and only then the hold-down device is removed again Sack is loosened.
This hold-down device can, for example, be disc-shaped and have through openings for appropriately arranged needles. In this way, it is possible to ensure that the sack area is not damaged during perforation, since this is pressed smoothly by the hold-down device, and damage is also avoided when the perforation needles are pulled out and the perforation openings cannot close again when the needles are pulled out .
a so-called water ring pump can be used for extraction, by means of which the extracted air-dust mixture is dissolved in water and then fed to a product workup.
the filled, vented and resealed sack is then filled into an additional outer sack made of paper, polypropylene or the like.
an additional outer packaging provides an even more stable packaging unit, whereby the ventilation method according to the invention ensures that the inner bag receiving the bulk material has a virtually exactly predeterminable, reproducible volume for a given weight, to which the outer bag can be exactly adapted, so that the outer bag rests very close to the inner bag in the manner of a sausage skin and overall a very stable packaging unit is formed.
the outer bag is closed after the inner bag has been filled in, in particular by sewing.
the user can then easily separate the inner and outer sack, and the individual ones Packaging components (inner bag and outer bag) can then be disposed of or recycled separately.
the invention also provides a device for carrying out the above-described method with a transport device and a perforation device, to which bags can be fed by means of the transport device, which are characterized in that a suction device and a labeling device are arranged downstream of the perforation device.
the perforation needles of the perforation device can have any geometrical shapes and any arrangement.
a bag ventilation device is generally designated by 1.
This bag ventilation device initially has a transport device, designated 2, which can be designed, for example, as a belt conveyor.
a transport device designated 2
filled and closed bags 3 are preferably conveyed one after the other, preferably lying down with bulk material in an upstream filling system.
These bags 3 preferably consist of a polyethylene film tube and have been filled with a bulk material, preferably a hygroscopic product, with a precisely weighed weight in the upstream filling system.
the bag ventilation device 1 also has a perforation device 4, a suction device 5 and a labeling device 6 above the transport device 2.
the perforation device 4 preferably has a plurality of perforation needles 7 on a plate-shaped disk and is arranged on a vertically movable support via a piston / cylinder unit or the like, not shown, the piston / cylinder unit making the perforation device 4 movable in the vertical direction.
the perforation device 4 is associated with a hold-down 8, which is preferably disc-shaped to match the design of the perforation device and is provided with through-openings such that the perforation needles 7 can be passed through these openings through the hold-down 8.
This hold-down 8 can be arranged fixed on the carrier or can also be arranged to be movable relative to the carrier in the vertical direction via a piston / cylinder unit.
the transport device 2 is stopped and the hold-down device 8 of the perforation device 4 is first moved vertically downward in the direction of arrow 9 in such a way that the hold-down device 8 presses firmly on the associated side surface of the bag 3 rests and thus forms a smooth contact surface below the hold-down device on the contact surface with the bag 3.
the perforation device 4 is actuated, ie the perforation needles 7 are in the direction of the arrow 9 pressed through the hold-down device 8 into the sack 3, the area of the sack wall being perforated accordingly.
the perforation needles 7 are then pulled out of the sack again, but the hold-down 8 still remains in pressure contact with the sack wall.
the hold-down device 8 is then lifted off the sack 3 and the sack 3 is then positioned such that the perforated area formed is located exactly below the suction device 5.
This can be done in that either the sack 3 is conveyed by the transport device 2 under the suction device 5 or, as shown in FIG. 2, the suction device 5 is shifted accordingly in the horizontal direction.
This suction device 5, of which only a bellows-like suction nozzle is shown, is then pressed in a suitable manner onto the perforated area of the bag wall of the bag 3 and then a pump or the like connected to the suction nozzle is actuated such that in the direction of the arrows 10 air is sucked out of the bag 3.
the air-dust mixture sucked out of the sack 3 is preferably fed to product processing, which is not shown in detail.
a plastic label 13 or the like is already fed from a label supply (rolls 11, 12) into the area of the labeling device 6, which is designed, for example, as a vacuum suction plate.
a plurality of labels 13 are arranged on the supply roll 11 one after the other on a substrate 20, which labels are successively sheared off or detached from the substrate 20 in an area 21 and fed to the labeling device 6.
the perforated area of the bag wall of the bag 3 is immediately conveyed into the area under the labeling device 6, as shown in FIG. 3.
This can in turn be done by either actuating the transport device 2 or, as shown in FIG. 3, the labeling device 6 together with the suction device 5 and the perforation device 4 being shifted horizontally to the left.
the labeling device 6 or suction plate has meanwhile sucked in a label 13, the label 13 preferably being provided with a self-adhesive coating on the side facing the bag 3.
the labeling device 6 is now pressed with the label 13 vertically downward onto the perforated area of the bag 3 and glued on, so that the bag 3 is tightly closed again and at the same time is provided with a label.
a suitably ventilated and resealed bag 3 is subsequently filled into an outer bag, for which purpose the bag ventilation device 1 is followed by a bagging device 14.
This bagging device 14 initially has an ascending transport device 15, which is arranged behind the transport device 2 when viewed in the transport direction and is preferably also designed as a belt conveyor.
This transport device 15 ends in the area of the sacking device 14 in the area of preferably two mutually displaceable clamping belt conveyors 16, which can accommodate a bag 3 conveyed by the transport device 15.
This clamping belt conveyor 16 can be pivoted about a horizontal axis in the direction of arrow 17 in such a way that the gripped bag 3 can be placed vertically in an upright position.
an outer bag holder 18 is provided in the bagging device 14, in which an outer bag 19, which is kept open at the top, is arranged, into which the respective gripped bag 3 is inserted by the clamping belt conveyors 16. This is done, for example, by reversing the drive of the clamping belt conveyor 16 or by the clamping belt conveyor 16 are moved apart and thus release the bag 3.
An outer bag 19 made of paper or polypropylene ribbon fabric is used, for example.
the volume of the respective bag 3 is predetermined precisely and reproducibly, so that outer bags can be used which are dimensioned in such a way that that the inner bag 3 fits exactly into the outer bag in such a way that the outer bag 19 fits tightly against the inner bag 3 and thus forms a particularly stable packaging unit.

Landscapes

Chemical & Material Sciences (AREA)
Dispersion Chemistry (AREA)
Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Supplying Of Containers To The Packaging Station (AREA)
Basic Packing Technique (AREA)
Auxiliary Devices For And Details Of Packaging Control (AREA)

EP95108805A 1994-06-08 1995-06-08 Procédé pour remplir des matières en vrac dans des sacs Expired - Lifetime EP0695685B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4419914A DE4419914A1 (de)	1994-06-08	1994-06-08	Verfahren zum Abfüllen von Schüttgut in Säcke
DE4419914		1994-06-08

Publications (3)

Publication Number	Publication Date
EP0695685A2 true EP0695685A2 (fr)	1996-02-07
EP0695685A3 EP0695685A3 (fr)	1996-03-13
EP0695685B1 EP0695685B1 (fr)	1999-01-13

Family

ID=6520018

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP95108805A Expired - Lifetime EP0695685B1 (fr)	1994-06-08	1995-06-08	Procédé pour remplir des matières en vrac dans des sacs

Country Status (3)

Country	Link
EP (1)	EP0695685B1 (fr)
AT (1)	ATE175636T1 (fr)
DE (2)	DE4419914A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1292496B2 (fr) †	2000-05-17	2009-11-11	Blue Bag (Innovation) Limited	Procede et appareil de remplissage de sac en materiau en poudre ou granulaire
EP1781552A4 (fr) *	2004-08-23	2011-08-31	United States Gypsum Co	Sac en plastique pour poudres fines
CN112265711A (zh) *	2020-11-06	2021-01-26	南京妍茉哒电子商务有限公司	一种节能型计算机硬件生产用便捷性贴签设备
CN114084440A (zh) *	2021-11-25	2022-02-25	湖南省湘衡盐化有限责任公司	一种食盐灌装空包剔除机构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE7610302U1 (fr) *		1900-01-01	Sieg-Rheinische Registrierwaagenfabrik Fix Peter Steimel, 5202 Hennef
DE6602222U (de) *	1962-03-12	1969-04-30	Windmoeller & Hoelscher	Vorrichtung zum verbessern der stapelfaehigkeit von kunststoffsaecken, insbesondere fuer luftempfindliche gueter.
DE1586070A1 (de) *	1967-06-22	1970-04-23	Mahlkuch Greif Werk Ernst	Verfahren und Einrichtung zum Verbinden des Innensackes mit dem UEbersack von Doppelsaecken
USRE30893E (en) *	1976-03-03	1982-04-06	Johns-Manville Corporation	Method of vacuum packaging compressible materials and apparatus
DE9010203U1 (de) *	1990-07-05	1991-11-14	Quarzwerke Gmbh, 5020 Frechen	Absackvorrichtung für feinstteiliges pudriges Gut

1994
- 1994-06-08 DE DE4419914A patent/DE4419914A1/de not_active Withdrawn
1995
- 1995-06-08 EP EP95108805A patent/EP0695685B1/fr not_active Expired - Lifetime
- 1995-06-08 DE DE59504788T patent/DE59504788D1/de not_active Expired - Fee Related
- 1995-06-08 AT AT95108805T patent/ATE175636T1/de not_active IP Right Cessation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1292496B2 (fr) †	2000-05-17	2009-11-11	Blue Bag (Innovation) Limited	Procede et appareil de remplissage de sac en materiau en poudre ou granulaire
EP1781552A4 (fr) *	2004-08-23	2011-08-31	United States Gypsum Co	Sac en plastique pour poudres fines
CN112265711A (zh) *	2020-11-06	2021-01-26	南京妍茉哒电子商务有限公司	一种节能型计算机硬件生产用便捷性贴签设备
CN112265711B (zh) *	2020-11-06	2021-08-31	重庆雨数信息技术有限公司	一种节能型计算机硬件生产用便捷性贴签设备
CN114084440A (zh) *	2021-11-25	2022-02-25	湖南省湘衡盐化有限责任公司	一种食盐灌装空包剔除机构

Also Published As

Publication number	Publication date
DE4419914A1 (de)	1996-01-11
EP0695685B1 (fr)	1999-01-13
EP0695685A3 (fr)	1996-03-13
DE59504788D1 (de)	1999-02-25
ATE175636T1 (de)	1999-01-15

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1996-01-08	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
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1997-10-15	17Q	First examination report despatched	Effective date: 19970829
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1999-11-19	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
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2007-12-31	BERE	Be: lapsed	Owner name: LIBRAWERK MASCHINENFABRIK G.M.B.H. Effective date*: 20050630

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