WO2010043336A1 - Tête de remplissage pour contenants - Google Patents

Tête de remplissage pour contenants Download PDF

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Publication number
WO2010043336A1
WO2010043336A1 PCT/EP2009/007220 EP2009007220W WO2010043336A1 WO 2010043336 A1 WO2010043336 A1 WO 2010043336A1 EP 2009007220 W EP2009007220 W EP 2009007220W WO 2010043336 A1 WO2010043336 A1 WO 2010043336A1
Authority
WO
WIPO (PCT)
Prior art keywords
filling
product
supply pipe
container
dust extraction
Prior art date
Application number
PCT/EP2009/007220
Other languages
English (en)
Inventor
Luc De Mulder
Original Assignee
Umicore
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.)
Filing date
Publication date
Application filed by Umicore filed Critical Umicore
Publication of WO2010043336A1 publication Critical patent/WO2010043336A1/fr

Links

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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/28—Controlling escape of air or dust from containers or receptacles during filling
    • 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/04—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers having air-escape, or air-withdrawal, passages

Definitions

  • the invention relates to a filling head or spout of a weighing and packaging installation for bags or containers, and the process of filling said bags or containers. More precisely, when a dustforming material is to be filled, dust free performance is guaranteed by the use of a filling spout provided with a double wall, accomodating both the material supply pipe and a concentric outer dust extraction pipe, that can be closed independently from the supply pipe.
  • the filling head is provided with a "pan”, moving over the head before the container is removed. Even when this pan closes the head, experience learns that there is no hermetical seal and dust will still escape from the gap between the pan and the edges of the dust extraction pipe.
  • This aim is achieved by a process for filling a container (1 ), having a filling opening (2) at the end of a flexible sleeve (3), with a quantity of dustforming product, using a filling spout (4) provided with a product supply pipe (5) and a dust extraction pipe (11 ), comprising the steps of:
  • the upper part of the sleeve (3) is fitted over the extremity of the spout (4), hereby longitudinally stretching said flexible sleeve. Also, during the suction step after closing the outlet of said supply pipe (5):
  • the process is especially suitable when the container (1 ) is a big-bag having a circular sleeve (3) and a filling opening (2).
  • An apparatus for carrying out the process above comprises a filling spout having a cylindrical material supply pipe fitted within a dust extraction pipe, a product valve, adapted for closing the outlet of the supply pipe hermetically; and a ventilation valve, adapted for closing the inlet of said dust extraction pipe hermetically.
  • the product valve can be a conically or frusto-conically formed member having a circular edge, adapted to fit with the annular face of the outlet of said supply pipe.
  • the dust extraction pipe can be in the form of a frusto-conical hood fitted around the extremity of the material supply pipe, and is connected to at least one exhaust tube.
  • the ventilation valve is preferably a frusto-conically formed member adapted to tightly fit into the hood and around the supply pipe, in order to close the inlet of said dust extraction pipe.
  • the invention further describes an apparatus for filling a container (1 ) with a dustforming product, said container having a filling opening (2), the apparatus comprising a filling spout (4) provided with a product supply pipe (5) and a dust extraction pipe (11 ), means to fit said filling opening (2) over said filling spout (4), a product valve (9), adapted for closing the outlet of said supply pipe (5) hermetically, and a ventilation valve (16), adapted for closing the inlet of said dust extraction pipe (11 ) hermetically characterized in that said ventilation valve (16) can be operated independently from said product valve (9).
  • the product supply pipe (5) is preferably cylindrical, and centered inside the dust extraction pipe (11 ).
  • both the product supply pipe (5) and the dust extraction pipe (11 ) can be provided with an outwardly formed frusto-conical extension so as to form an annular inlet (17) of the dust extraction pipe facing away from the outlet of the supply pipe (5).
  • the product valve (9) is preferably a conically formed member, adapted to close the outlet of said supply pipe (5).
  • the ventilation valve (16) is then preferably a frusto-conically formed member adapted to tightly close the inlet of said dust extraction pipe (11 ).
  • the apparatus further comprising a mechanism (18), preferably situated inside the supply pipe (5), adapted to move the product and ventilation valve (16) together, whilst also permitting to move the ventilation valve (16) independently when the product valve (9) closes the outlet of the supply pipe (5).
  • the above described apparatus can be connected to a container (1 ), wherein said container is a big-bag having a circular sleeve (3) and filling opening (2).
  • the apparatus preferably also comprises a weighing system for carrying a container, that is capable of lifting or lowering said container during the filling process.
  • the main feature of the novel process consists in using an independent closing mechanism for both the material supply pipe and the outer dust extraction pipe, together with the process of continuing and even increasing the suction of air carrying dust through the dust extraction pipe after having closed the material supply pipe.
  • the air stream through the dust extraction pipe evacuates: - all the dust that is present on the walls of the bag's sleeve,
  • the sleeve of the bag or container is released from the filling spout before the closure of the dust extraction pipe. Once all of the dust has been removed the dust extraction pipe is closed whilst continuing the air suction.
  • Fig. 1 Start-up position of filling station
  • Fig. 2 High-speed filling bulk material
  • Fig. 3 Closure and removal of bag
  • Fig. 4 Sectional view of filling head during high-speed filling
  • Fig. 5 a-b-c Position of different parts of the filling head during the filling operation
  • a typical bag filling installation comprises the following well-known parts (see also the Figures):
  • a filling sput (4) having a concentric double wall, forming the dust extraction pipe (11 ) around the filling tube (5), - connected to a vacuum suction pipe (6) provided with a dust trap downstream, and connected to a vacuum suction device,
  • the installation comprises - an inflatable seal (8), the so-called “bellows" located around the filling tube,
  • the initial height of the lifting roller table (15) is adjusted (manually), depending upon the operator's choice and the kind of packaging.
  • the vacuum suction device (not shown on the Figure, situated downstream of the vacuum valve (10)) is started, and the opening (2) of the plastic bag (1 ) or the sleeve (3) of the bulk bag (liner) is slided over the inflatable seal (8) by the operator.
  • the operator starts the filling sequence: the weight processor puts to zero the net weight.
  • the seal is inflated and holds the opening of the bag stretched.
  • the conical vacuum valve (10) opens, together with the product valve (9).
  • the feeding screw (12) starts conveying the product (13) to the filling spout (5) with a high flow rate.
  • the conical vacuum valve (10) is set to its full open position in order to allow only a small vacuum, just enough to compensate the product volume increase in the bag.
  • the air (14) carrying dust from above the product level is removed via the dust extraction pipe (11 ) and the vacuum suction pipe (6).
  • Fig. 4 shows the filling spout assembly during this phase
  • Fig. 5 a-b-c shows the position of the different parts of the filling head during the filling operation and when the plastic bag is removed:
  • Fig. 5a product valve and ventilation valve are open during phase 2: High-speed filling bulk material
  • Fig. 5b product valve is closed, ventilation valve remains open when: - reaching the exact weight
  • Fig. 5c ventilation valve is now closed also, but only after the bag has been removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Abstract

La présente invention a pour objet une tête ou buse de remplissage d’un système de pesage et d’emballage pour sacs ou contenants. L’invention traite également du procédé de remplissage desdits sacs ou contenants. L’appareil selon l’invention est utilisé pour remplir un contenant (1) présentant une ouverture de remplissage (2) avec un produit formant de la poussière. Cet appareil comprend une buse de remplissage (4) dotée d’un tuyau d’alimentation en produit (5) et d’un tuyau d’extraction de poussière (11), des moyens prévus pour ajuster ladite ouverture de remplissage (2) sur ladite buse de remplissage (4), une soupape de produit (9) conçue pour fermer la sortie dudit tuyau d’alimentation (5) de manière hermétique, et une soupape de ventilation (16) conçue pour fermer l’entrée dudit tuyau d’extraction de poussière (11) de manière hermétique, ladite soupape de ventilation (16) pouvant être actionnée indépendamment de ladite soupape de produit (9).
PCT/EP2009/007220 2008-10-14 2009-10-08 Tête de remplissage pour contenants WO2010043336A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08017945 2008-10-14
EP08017945.0 2008-10-14

Publications (1)

Publication Number Publication Date
WO2010043336A1 true WO2010043336A1 (fr) 2010-04-22

Family

ID=40419202

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/007220 WO2010043336A1 (fr) 2008-10-14 2009-10-08 Tête de remplissage pour contenants

Country Status (1)

Country Link
WO (1) WO2010043336A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106240856A (zh) * 2016-08-26 2016-12-21 赛摩电气股份有限公司 一种全自动粉料包装系统
WO2020240484A1 (fr) * 2019-05-31 2020-12-03 BFM Technology Limited Buse de remplissage de poche

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0257683A2 (fr) * 1986-08-28 1988-03-02 L. E. Stott Limited Appareil de distribution de poudre
DE10247291A1 (de) * 2002-10-10 2004-04-22 Weber-Waagenbau und Wägeelektronik GmbH Füllstation für eine Sackherstellungs- und Befüllmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0257683A2 (fr) * 1986-08-28 1988-03-02 L. E. Stott Limited Appareil de distribution de poudre
DE10247291A1 (de) * 2002-10-10 2004-04-22 Weber-Waagenbau und Wägeelektronik GmbH Füllstation für eine Sackherstellungs- und Befüllmaschine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106240856A (zh) * 2016-08-26 2016-12-21 赛摩电气股份有限公司 一种全自动粉料包装系统
WO2020240484A1 (fr) * 2019-05-31 2020-12-03 BFM Technology Limited Buse de remplissage de poche
CN114174174A (zh) * 2019-05-31 2022-03-11 Bfm技术有限公司 袋装载喷嘴
CN114174174B (zh) * 2019-05-31 2024-03-22 Bfm技术有限公司 袋装载喷嘴

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