EP1841653B1 - Dispositif de remplissage d'un recipient par au moins un materiau en poudre - Google Patents

Dispositif de remplissage d'un recipient par au moins un materiau en poudre Download PDF

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Publication number
EP1841653B1
EP1841653B1 EP06709430A EP06709430A EP1841653B1 EP 1841653 B1 EP1841653 B1 EP 1841653B1 EP 06709430 A EP06709430 A EP 06709430A EP 06709430 A EP06709430 A EP 06709430A EP 1841653 B1 EP1841653 B1 EP 1841653B1
Authority
EP
European Patent Office
Prior art keywords
filling
duct
container
air
intended
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.)
Not-in-force
Application number
EP06709430A
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German (de)
English (en)
French (fr)
Other versions
EP1841653A1 (fr
Inventor
Luc Federzoni
Pascal Revirand
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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Publication of EP1841653A1 publication Critical patent/EP1841653A1/fr
Application granted granted Critical
Publication of EP1841653B1 publication Critical patent/EP1841653B1/fr
Not-in-force legal-status Critical Current
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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

Definitions

  • the present invention relates to a device for filling a container with at least one powder material.
  • Such a device is known for example from the document DE 33 10 725 .
  • the materials in the form of powder are very numerous, for example the detergents, milk powder or cement.
  • these are powder materials intended to be shaped, for example, by sintering, compression, compression-sintering or hot isostatic pressing.
  • These are for example metal powders, ceramics or their mixture. It is possible to obtain pieces of very complex geometry.
  • air present in the mold before filling is capable of rendering the filling inhomogeneous, causing porosities in the molded part, to lead to low and scattered apparent densities, and to lengthen filling times.
  • the presence of air is likely to disturb the flow of the powder material into the mold.
  • a filling device provided with at least one ventilation duct of a mold intended to be filled by means of said device.
  • ducts are provided to allow air to escape from the mold and to leave room for the powder, or to be sucked out of the mold, a slight suction speeding up the filling is then generated.
  • the main subject of the present invention is a device for filling a container with at least one substance in powder form, said device comprising a filling channel intended to bring the material from a stock of material to an inlet orifice of the container characterized in that also comprises means for discharging a pneumatic fluid contained in said container.
  • the evacuation means comprise at least one duct intended to connect the inside of the container to an environment outside the container during the filling phase, said first duct and / or a duct intended to evacuate the air before filling. , said second conduit.
  • the second exhaust duct connects to the first duct.
  • the first discharge duct is internal to the filling channel.
  • a suction means of the air contained in the container is connected to the first and / or second conduit.
  • the suction means is a pneumatic pump.
  • the first duct can be connected to the pump by at least two secondary ducts, advantageously three, distributed angularly in a regular manner around the first duct.
  • said suction means is mounted in the filling channel and is formed by at least one blade mounted on a lower face of a disk intended to be rotated about its axis, said disk comprising in its central part an orifice connected to the first discharge duct.
  • At least one powder material distribution member may also be provided in the container projecting from an upper face of the disk.
  • the filling device may also comprise a cylindrical core disposed axially below the plate and having a third discharge duct disposed in line with the first duct and opening into the upper part of the container by at least one secondary duct.
  • the device comprises a plurality of secondary conduits distributed angularly in a regular manner around the third conduit.
  • the suction disk and a separate distribution disk of the suction disk and placed before the suction disk in the direction of filling of the material are integral in rotation of a shaft adapted to be rotated and in which is performed the first vent pipe.
  • the filling device is in the form of a shoe for sliding on a table having an orifice connected to the inlet of a container.
  • the device according to the present invention is particularly intended to fill at least one mold for making parts by sintering, compression, compression-sintering or hot isostatic pressing.
  • the present invention also relates to a method of filling a container with at least one powdered material including the step of evacuating the air contained in the container during the introduction of the powder material and / or prior to the placement of said material.
  • a filling device comprising a shoe 2 said filling intended to slide along the arrow F on a table 4 in which are formed cavities 6 to fill, for example molds.
  • the shoe comprises a filling channel 8 connected to a reserve of powdery material (not shown) by an upper end 7, the channel 8 opens into a lower portion 10 or soleplate intended to be in contact with the table 4, through a hole flow 12 through which the powder material flows into the container 6.
  • the shoe also comprises means 14 allowing a pneumatic fluid contained in the container 6, for example air to be removed from the container.
  • the means 14 comprise a first conduit 16 intended to allow evacuation of the air from the container 6 during filling, that is to say when the powder material enters the cavity.
  • the device also advantageously comprises a second evacuation duct 18 intended to allow the air to exit the container 6 before the beginning of filling ( figure 2 ). But it is understood that an evacuation of air only before filling or only during filling is not outside the scope of the present invention.
  • the first duct 16 is disposed inside the filling duct in a substantially coaxial manner so as not to hinder a uniform flow of the material in the duct 8.
  • the first duct 16 opens out through a first lower end 22 in the flow orifice 12 of the channel 8.
  • the second duct 18 is formed directly in the shoe and opens at a first end 20 in front of the end 22 in the direction of the arrow F, in the sole 10 of the shoe and by a second end 23 in the first conduit 16.
  • the position of the first duct inside the filling duct substantially coaxially with it, allows very advantageously to obtain an extraction of the pneumatic fluid having a symmetry of revolution.
  • the first suction duct 16 opens into a substantially central portion of the container, which allows to suck air throughout the container all around the duct, without favoring a particular area of the container.
  • this embodiment allows a simple adaptation of the filling device to different types of powder. Indeed, it may be desirable to modify the suction as a function of the particle size of the powder, by modifying the suction flow rate. Thus, it suffices to replace the first duct 16 with a first duct of larger section or smaller section, respectively to increase or reduce the suction flow. In the devices of the state of the art, in which the suction is effected by the outside of the filling duct, this modification is on the contrary heavy and restrictive.
  • the air is discharged through a second upper end of the first duct 16 out of the filling channel.
  • the duct 16 passes through the periphery of the channel or tube 8.
  • the duct 16 is connected to the external environment by at least two secondary tubes arranged symmetrically with respect to the duct. the axis of the duct 16, so as to disturb as little as possible the flow symmetry of the powder downstream of the bifurcation of the duct 16.
  • a pneumatic pump 24 connected to the upper end of the first conduit 16 and able to extract the air contained in the container. It is understood that it is possible to envisage a pump extracting air from the container only before filling, either by providing first 16 and second 18 completely separate ducts or by actuating the pump only prior to filling. The use of this pump has the advantage of accelerating the filling speed due to the suction generated by the pump inside the container.
  • the pump is advantageously connected to the first conduit 16 by means of a flexible hose, adapting to the movements of the shoe.
  • the pneumatic pump 24 generates, for example a depression of 10 5 Pa, which is sufficient to obtain good flow performance without causing powder in the air extraction ducts.
  • the first end 20 of the second duct 18 is facing the container 6, the air contained in the container 6 is sucked and discharged to the outside.
  • the shoe continues to move in the direction of arrow F ( figure 3 ), the flow orifice 12 comes opposite the container 6, filling begins, the powder flows into the container.
  • the first conduit 16 communicates with the interior of the container 6, the air is discharged either naturally (the air is expelled due to the arrival of the powder), or by suction.
  • FIG. 5 a second embodiment can be seen in which the shoe 2 comprises a separate filling channel 8 and a separate air outlet duct 18, the duct 18 making it possible to evacuate the air before filling, when its lower end 20 is next to the cavity of filling.
  • the exhaust duct 18 is connected to a pneumatic pump 24.
  • the exhaust duct 18 forms the second duct as previously described.
  • the filling device comprises a cylindrical casing 101 intended to be disposed above a container to be filled (not shown) and forming a filling channel between a powder reservoir and the container.
  • the device also comprises distribution means 100, arranged in the filling channel and formed by a plate 103 of axis X, intended to be rotated about this axis X.
  • the disc is provided with an upper face 102 of at least one dispensing element 104 extending substantially radially on the plate, in the form of a rod.
  • the rod 104 is intended to homogeneously distribute the powder provided by a hopper disposed above the filling device (not shown). It is understood that the element 104 may have any form suitable for dispensing the powder.
  • the device also comprises on a lower face 106 of the disk 103 at least one air suction pad 107 (in phantom) intended for to cause a vortex to evacuate the air contained in the container to be filled.
  • the plate 103 is rotated by means of a shaft 108 of axis coaxial with the axis X in which is made a first extraction duct 116 of the air sucked by the scoop 107.
  • An orifice 113 is practiced in the central part of the disk on the side of the lower face 106 to put in communication the space below the disk and the first conduit 116.
  • the suction blade has substantially the shape of a turbine blade adapted to generate a depression But it is understood that it can have different shapes.
  • the device according to the present invention also comprises a central core 109 having the shape of a regular cylinder axially disposed below the plate and also provided with a third suction duct 110 arranged in line with the first extraction duct 116, in order to suck up the air contained in the bottom of the container.
  • the suction duct 110 in its lower part advantageously separates into several secondary ducts 112 angularly distributed regularly around the axis of the suction duct 110 so as to have a uniform air suction in the mold.
  • the device is placed above the container.
  • the disc 103 is rotated, in particular the blade 106, the air contained in the container is then sucked by the conduits 112, 110 and 109 in the direction of the arrow
  • the hopper is opened so as to allow the flow of the powder charge that it contains, in the filling duct and in particular on the tray. Due to the rotation of the tray and the dispensing rod, the powder is ejected uniformly against the walls of the filling channel and falls into the container. Simultaneously with the filling, the air continues to be evacuated.
  • Said device comprises a separate distribution plate 120 and a suction plate 103, the suction plate 103 being intended to be placed close to the filling orifice of the container 6 and the distribution plate 120 above the plate of the container.
  • the two trays are connected in rotation to a shaft 122 adapted to be rotated about the X axis, and pierced with a first longitudinal discharge duct 116, opening at one end into a lower face of the suction disc 103 and another end in the external environment.
  • the shaft is rotated, causing suction of the air contained in the container.
  • the suction disc continues to suck the air into the container.
  • the first air discharge duct during filling and the second duct for exhaust air before filling are combined.
  • the present invention then has the advantages of leading to a better homogeneity of the filling of the mold.
  • it ensures a better circumferential density distribution of the powder.
  • the device according to the present invention makes it possible to lead to reduced filling times compared to systems of known type. In mass production, the gain in time obtained during filling leads to significant productivity gains.
  • the present invention is also very advantageous in the case of filling with ultrafine powders.
  • fine powders such as micrometric powders of the Sm-Co type are difficult to manipulate using conventional filling systems, since the presence of air in the matrix disturbs the flow of the powder during its fall into the cavity to be filled.
  • the present invention leads to performances close to those obtained with a vacuum filling system. Now the implementation of the vacuum filling is not feasible in an industrial environment.
  • the present invention applies in particular to the filling of mold with a powder or a mixture of powders for the production of parts by sintering, compression, compression-sintering or hot isostatic pressing.
  • the filling device according to the present invention allows to uniformly fill any type of container with a material in powder form.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Powder Metallurgy (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
EP06709430A 2005-01-27 2006-01-24 Dispositif de remplissage d'un recipient par au moins un materiau en poudre Not-in-force EP1841653B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0550233A FR2881106B1 (fr) 2005-01-27 2005-01-27 Procede de remplissage d'un recipient par au moins un materiau en poudre et dispositif pour la mise en oeuvre dudit procede
PCT/FR2006/050046 WO2006079740A1 (fr) 2005-01-27 2006-01-24 Dispositif de remplissage d ' un recipient par au moins un materiau en poudre

Publications (2)

Publication Number Publication Date
EP1841653A1 EP1841653A1 (fr) 2007-10-10
EP1841653B1 true EP1841653B1 (fr) 2008-07-02

Family

ID=34981862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06709430A Not-in-force EP1841653B1 (fr) 2005-01-27 2006-01-24 Dispositif de remplissage d'un recipient par au moins un materiau en poudre

Country Status (9)

Country Link
US (1) US8113245B2 (ja)
EP (1) EP1841653B1 (ja)
JP (1) JP2008528801A (ja)
CN (1) CN100562461C (ja)
AT (1) ATE399717T1 (ja)
DE (1) DE602006001636D1 (ja)
ES (1) ES2308730T3 (ja)
FR (1) FR2881106B1 (ja)
WO (1) WO2006079740A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2881106B1 (fr) 2005-01-27 2010-09-24 Commissariat Energie Atomique Procede de remplissage d'un recipient par au moins un materiau en poudre et dispositif pour la mise en oeuvre dudit procede
FR2882029B1 (fr) 2005-02-14 2011-03-11 Commissariat Energie Atomique Dispositif de distribution d'au moins un materiau granulaire dans un recipient, dispositif de remplissage et procede de remplissage utilisant un tel dispositif
US20120180435A1 (en) * 2011-01-14 2012-07-19 Anthony Stelluti Packaging and Densitization of Micrometric Powders
CN102910312B (zh) * 2012-11-05 2015-06-17 广州白云山制药股份有限公司广州白云山制药总厂 一种控制粉针制剂残氧量的方法
JP6187512B2 (ja) 2015-03-17 2017-08-30 コニカミノルタ株式会社 トナー充填装置
JP6540492B2 (ja) * 2015-12-15 2019-07-10 株式会社デンソー 粉末供給装置
CN107866570A (zh) * 2017-12-15 2018-04-03 东北大学 一种用于粉末冶金温压成形的设备

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2170469A (en) * 1938-06-09 1939-08-22 Clarence F Carter Method of and apparatus for filling containers with powder or other comminuted material
US2613864A (en) * 1948-01-05 1952-10-14 Carter Clarence Freemont Apparatus for filling containers
US2608335A (en) * 1948-03-04 1952-08-26 Howard A Rohdin Apparatus for vacuum filling containers
US3421554A (en) * 1966-04-01 1969-01-14 Carter Eng Co Method and apparatus for filling containers
BE801288A (fr) 1973-06-22 1973-10-15 Soudure Autogene Elect Distributeur de poudres
DE2615270C2 (de) * 1976-04-08 1982-11-18 Rovema Verpackungsmaschinen GmbH & Co KG, 6301 Fernwald Vorrichtung zum Verpacken von Schüttgütern
US4081004A (en) * 1976-05-07 1978-03-28 Olinkfraft, Inc. Weighing hopper and method
FR2377937A1 (fr) * 1977-01-20 1978-08-18 Alfa Laval Ag Procede et dispositif pour la desaeration des poudres, telles que poudres de lait
DE2924313C2 (de) * 1979-06-15 1983-01-13 Greif-Werk Maschinenfabrik GmbH, 2400 Lübeck Vorrichtung zum Füllen von pulverisiertem Füllgut in einen Sack
EP0032481A3 (de) * 1980-01-11 1982-12-08 Firma M. Jeger Vorrichtung zum Dosieren strömungsfähiger Medien
DE3310725A1 (de) * 1983-03-24 1984-09-27 Greif-Werk Maschinenfabrik GmbH, 2400 Lübeck Sackfuellvorrichtung fuer pulverisiertes fuellgut
JPS60193887A (ja) * 1984-03-16 1985-10-02 四国化工機株式会社 液充填ノズル
JPS62122902A (ja) * 1985-11-21 1987-06-04 株式会社クボタ 粉体の圧密充填方法および装置
US4813818A (en) * 1987-08-25 1989-03-21 Michael Sanzone Apparatus and method for feeding powdered materials
US4872493A (en) * 1988-05-10 1989-10-10 Container Corporation Of America Apparatus for filling a lined container
GB8817708D0 (en) * 1988-07-25 1988-09-01 Portals Eng Ltd Improvements in filling machines
US4967814A (en) * 1988-09-19 1990-11-06 Westvaco Corporation Apparatus for filling high pressure gas storage bottles with powdered activated carbon
US5244019A (en) * 1989-09-15 1993-09-14 Better Agricultural Goals Corp. Vacuum fill system
JPH03258498A (ja) * 1990-03-07 1991-11-18 Toyota Motor Corp 粉末成形プレスの粉末充填方法および充填装置
US5194268A (en) * 1990-06-07 1993-03-16 The Dow Chemical Company Apparatus for injection molding a ceramic greenware composite without knit lines
JP3457717B2 (ja) * 1993-10-29 2003-10-20 株式会社リコー 粉体充填装置
SE0000171D0 (sv) * 2000-02-02 2000-02-02 Hoeganaes Ab Powder filling method and arrangement therefor
US6315011B1 (en) * 2000-07-10 2001-11-13 Xerox Corporation Air-relief filter nozzle assemblies
IT1318354B1 (it) * 2000-07-31 2003-08-25 Giorgio Prodi Gruppo e metodo per il caricamento della cavita' dello stampo conmateriale in polvere o granulare, nella fabbricazione di piastrelle
JP2003191095A (ja) * 2001-12-26 2003-07-08 Mitsubishi Materials Corp 粉末成形装置の充填方法及びそのフィーダー装置
FR2862893B1 (fr) * 2003-11-28 2006-02-24 Commissariat Energie Atomique Dispositif de remplissage d'un moule par une poudre ou un melange de poudres
FR2881106B1 (fr) 2005-01-27 2010-09-24 Commissariat Energie Atomique Procede de remplissage d'un recipient par au moins un materiau en poudre et dispositif pour la mise en oeuvre dudit procede
FR2882029B1 (fr) 2005-02-14 2011-03-11 Commissariat Energie Atomique Dispositif de distribution d'au moins un materiau granulaire dans un recipient, dispositif de remplissage et procede de remplissage utilisant un tel dispositif

Also Published As

Publication number Publication date
EP1841653A1 (fr) 2007-10-10
US20080053562A1 (en) 2008-03-06
FR2881106B1 (fr) 2010-09-24
FR2881106A1 (fr) 2006-07-28
CN101107170A (zh) 2008-01-16
DE602006001636D1 (de) 2008-08-14
ATE399717T1 (de) 2008-07-15
JP2008528801A (ja) 2008-07-31
ES2308730T3 (es) 2008-12-01
WO2006079740A1 (fr) 2006-08-03
CN100562461C (zh) 2009-11-25
US8113245B2 (en) 2012-02-14

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