EP1841653A1 - Device for filling a container with at least one type of powder material - Google Patents
Device for filling a container with at least one type of powder materialInfo
- Publication number
- EP1841653A1 EP1841653A1 EP06709430A EP06709430A EP1841653A1 EP 1841653 A1 EP1841653 A1 EP 1841653A1 EP 06709430 A EP06709430 A EP 06709430A EP 06709430 A EP06709430 A EP 06709430A EP 1841653 A1 EP1841653 A1 EP 1841653A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filling
- container
- conduit
- duct
- suction
- 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.)
- Granted
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
Definitions
- the present invention relates primarily to a method of filling a container with at least one powdered material, and at least one
- the materials in the form of powder are very numerous, for example the detergents, milk powder or cement. In the industry, these are powder materials intended to be
- US 2003/0113222 proposes a device for injecting air into the air.
- Powder material at the time of filling the mold in order to homogeneously distribute the different particle size of material.
- 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 the form of a powder, said device comprising a filling channel intended to bring the material from a stock of material to an inlet of the container.
- 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, called the 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 exhaust 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 may 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 conduit disposed in line with the first conduit and opening into the upper part of the container by at least one secondary conduit.
- the device comprises a plurality of secondary conduits distributed angularly in a regular manner around the third conduit.
- the suction disk and a distribution disc distinct from 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 the first discharge conduit is made.
- 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.
- FIG. 1 is a schematic representation of a first example of a filling device according to the present invention
- FIG. 2 is a schematic representation of the device of FIG. 1 in a phase prior to filling
- FIG. 3 is a schematic representation of the device of FIG. 1 at the beginning of filling
- FIG. 4 is a schematic representation of the device of FIG. 1 at the end of filling
- FIG. 5 is a schematic representation of a second example of a filling device according to the present invention
- FIG. 6 is a sectional view of a second embodiment of a device according to the present invention
- FIG. 7 is an isometric perspective view of a detail of FIG. 6,
- Figure 7a is a detail view of Figure 7;
- Figure 8 is a longitudinal sectional view of another example of the second embodiment.
- a filling device comprising a shoe 2 said filling intended to slide along the arrow F on a table 4 in which cavities are made 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 has flowed into the container 6.
- the shoe also comprises means 14 allowing a pneumatic fluid contained in the container 6, for example to air to be evacuated from the container.
- the means 14 comprise a first conduit 16 intended to allow the evacuation of air from the container 6 during filling, that is to say when the powder material enters the cavity.
- the device also advantageously includes a second exhaust duct 18 for allowing the air to exit the container 6 before the start 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 arranged inside the filling channel in a substantially coaxial manner so as not to hinder a uniform flow of material in the channel 8.
- the first duct 16 opens out via 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 duct 16.
- the position of the first duct inside the filling duct in a substantially coaxial manner with the latter makes it very advantageous 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 air to be sucked into the entire container all around the duct, without favoring a particular area of the container. This avoids the appearance of disturbance in the flow of the powder and therefore in the filling the mold. An even more homogeneous filling of the mold is then obtained.
- this embodiment allows a simple adaptation of the filling device to different types of powder. Indeed, it may be desirable to modify the suction according to 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 outside 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 symmetry of flow of the powder downstream of the bifurcation of the duct 16.
- it is three secondary tubes distributed angularly regularly at 120 ° or six 60 ° secondary tubes around the canal axis.
- 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 one can 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.
- filters arranged at the lower ends 22 and 20 respectively of the first 16 and second 18 ducts, forming barriers for the powder material in order to avoid its suction through the ducts 16 and 18. It is understood that a device comprising several ducts 16 and / or 18 for extracting air from the cavity to be filled is not outside the scope of the present invention. We will now describe the process of filling a container 6.
- the shoe continues to move in the direction of the arrow F ( Figure 3), the flow port 12 is 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 evacuated either naturally (the air is expelled due to the arrival of the powder) or by suction.
- FIG. 5 shows a second embodiment, 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 facing the cavity of filling.
- the exhaust duct 18 is connected to a pneumatic pump 24.
- the exhaust duct 18 forms the second duct as described previously.
- FIGS. 6 and 7 show a first example of a second embodiment of a device according to the present invention in which the powder material is homogeneously distributed by rotation of a portion of the device of FIG. filling.
- 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 X axis, intended to be rotated about this axis X.
- the disk is provided on an upper face 102 with 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 blade 107 (in broken lines) intended 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 having an axis coaxial with the axis X in which a first extraction duct 116 of the air sucked by the scoop 107 is made.
- An orifice 113 is practiced in the central part of the disc on the side of the lower face 106 to put in communication the space below the disc 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 arranged axially 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 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.
- FIG. 8 a second example of the second embodiment of a filling device according to the present invention can be seen.
- 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 dispensing plate 120 above the plate of the container.
- the two trays are rotatably connected 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 at 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 evacuation duct during filling and the second duct for evacuating 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 makes it possible to ensure 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
- the present invention leads to performances close to those obtained with a vacuum filling system.
- the implementation of the vacuum filling is not feasible in an industrial environment.
- the present invention is particularly applicable 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)
- Supply Of Fluid Materials To The Packaging Location (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0550233A FR2881106B1 (en) | 2005-01-27 | 2005-01-27 | PROCESS FOR FILLING A CONTAINER WITH AT LEAST ONE POWDER MATERIAL AND DEVICE FOR CARRYING OUT SAID METHOD |
PCT/FR2006/050046 WO2006079740A1 (en) | 2005-01-27 | 2006-01-24 | Device fo filling a container with at least one type of powder material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1841653A1 true EP1841653A1 (en) | 2007-10-10 |
EP1841653B1 EP1841653B1 (en) | 2008-07-02 |
Family
ID=34981862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06709430A Not-in-force EP1841653B1 (en) | 2005-01-27 | 2006-01-24 | Device for filling a container with at least one type of powder material |
Country Status (9)
Country | Link |
---|---|
US (1) | US8113245B2 (en) |
EP (1) | EP1841653B1 (en) |
JP (1) | JP2008528801A (en) |
CN (1) | CN100562461C (en) |
AT (1) | ATE399717T1 (en) |
DE (1) | DE602006001636D1 (en) |
ES (1) | ES2308730T3 (en) |
FR (1) | FR2881106B1 (en) |
WO (1) | WO2006079740A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2881106B1 (en) | 2005-01-27 | 2010-09-24 | Commissariat Energie Atomique | PROCESS FOR FILLING A CONTAINER WITH AT LEAST ONE POWDER MATERIAL AND DEVICE FOR CARRYING OUT SAID METHOD |
FR2882029B1 (en) | 2005-02-14 | 2011-03-11 | Commissariat Energie Atomique | DEVICE FOR DISPENSING AT LEAST ONE GRANULAR MATERIAL IN A CONTAINER, FILLING DEVICE AND FILLING METHOD USING SUCH A DEVICE |
US20120180435A1 (en) * | 2011-01-14 | 2012-07-19 | Anthony Stelluti | Packaging and Densitization of Micrometric Powders |
CN102910312B (en) * | 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 | Method for controlling amount of remaining oxygen in powder injection preparation |
JP6187512B2 (en) * | 2015-03-17 | 2017-08-30 | コニカミノルタ株式会社 | Toner filling device |
JP6540492B2 (en) * | 2015-12-15 | 2019-07-10 | 株式会社デンソー | Powder supply device |
CN107866570A (en) * | 2017-12-15 | 2018-04-03 | 东北大学 | A kind of equipment for powder metallurgy warm pressing formation |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
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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 (en) | 1973-06-22 | 1973-10-15 | Soudure Autogene Elect | POWDER DISPENSER |
DE2615270C2 (en) * | 1976-04-08 | 1982-11-18 | Rovema Verpackungsmaschinen GmbH & Co KG, 6301 Fernwald | Device for packing bulk goods |
US4081004A (en) * | 1976-05-07 | 1978-03-28 | Olinkfraft, Inc. | Weighing hopper and method |
FR2377937A1 (en) * | 1977-01-20 | 1978-08-18 | Alfa Laval Ag | METHOD AND DEVICE FOR DEAERATION OF POWDERS, SUCH AS MILK POWDERS |
DE2924313C2 (en) * | 1979-06-15 | 1983-01-13 | Greif-Werk Maschinenfabrik GmbH, 2400 Lübeck | Device for filling powdered contents into a sack |
EP0032481A3 (en) * | 1980-01-11 | 1982-12-08 | Firma M. Jeger | Device for controlling the quantity of fluent solid material |
DE3310725A1 (en) * | 1983-03-24 | 1984-09-27 | Greif-Werk Maschinenfabrik GmbH, 2400 Lübeck | Sack-filling device for powdered fluent solid material |
JPS60193887A (en) * | 1984-03-16 | 1985-10-02 | 四国化工機株式会社 | Liquid filling nozzle |
JPS62122902A (en) * | 1985-11-21 | 1987-06-04 | 株式会社クボタ | Consolidation filling method and device for powdered body |
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 (en) * | 1990-03-07 | 1991-11-18 | Toyota Motor Corp | Method and device for packing powder in powder compacting press |
US5194268A (en) * | 1990-06-07 | 1993-03-16 | The Dow Chemical Company | Apparatus for injection molding a ceramic greenware composite without knit lines |
JP3457717B2 (en) * | 1993-10-29 | 2003-10-20 | 株式会社リコー | Powder filling equipment |
SE0000171D0 (en) * | 2000-02-02 | 2000-02-02 | Hoeganaes Ab | Powder filling method and arrangement for that |
US6315011B1 (en) * | 2000-07-10 | 2001-11-13 | Xerox Corporation | Air-relief filter nozzle assemblies |
IT1318354B1 (en) * | 2000-07-31 | 2003-08-25 | Giorgio Prodi | GROUP AND METHOD FOR LOADING THE CAVITY OF THE CONMATERIAL MOLD IN POWDER OR GRANULAR, IN THE MANUFACTURE OF TILES |
JP2003191095A (en) * | 2001-12-26 | 2003-07-08 | Mitsubishi Materials Corp | Packing method for powder molding device and feeder for the same |
FR2862893B1 (en) * | 2003-11-28 | 2006-02-24 | Commissariat Energie Atomique | DEVICE FOR FILLING A MOLD WITH A POWDER OR A MIXTURE OF POWDERS |
FR2881106B1 (en) | 2005-01-27 | 2010-09-24 | Commissariat Energie Atomique | PROCESS FOR FILLING A CONTAINER WITH AT LEAST ONE POWDER MATERIAL AND DEVICE FOR CARRYING OUT SAID METHOD |
FR2882029B1 (en) | 2005-02-14 | 2011-03-11 | Commissariat Energie Atomique | DEVICE FOR DISPENSING AT LEAST ONE GRANULAR MATERIAL IN A CONTAINER, FILLING DEVICE AND FILLING METHOD USING SUCH A DEVICE |
-
2005
- 2005-01-27 FR FR0550233A patent/FR2881106B1/en not_active Expired - Fee Related
-
2006
- 2006-01-24 EP EP06709430A patent/EP1841653B1/en not_active Not-in-force
- 2006-01-24 WO PCT/FR2006/050046 patent/WO2006079740A1/en active IP Right Grant
- 2006-01-24 CN CNB2006800032491A patent/CN100562461C/en not_active Expired - Fee Related
- 2006-01-24 US US11/813,636 patent/US8113245B2/en not_active Expired - Fee Related
- 2006-01-24 ES ES06709430T patent/ES2308730T3/en active Active
- 2006-01-24 JP JP2007552689A patent/JP2008528801A/en active Pending
- 2006-01-24 DE DE602006001636T patent/DE602006001636D1/en active Active
- 2006-01-24 AT AT06709430T patent/ATE399717T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2006079740A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1841653B1 (en) | 2008-07-02 |
JP2008528801A (en) | 2008-07-31 |
US8113245B2 (en) | 2012-02-14 |
US20080053562A1 (en) | 2008-03-06 |
ES2308730T3 (en) | 2008-12-01 |
ATE399717T1 (en) | 2008-07-15 |
FR2881106A1 (en) | 2006-07-28 |
FR2881106B1 (en) | 2010-09-24 |
CN100562461C (en) | 2009-11-25 |
DE602006001636D1 (en) | 2008-08-14 |
WO2006079740A1 (en) | 2006-08-03 |
CN101107170A (en) | 2008-01-16 |
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