EP2167259A1 - Dispositif de remplissage pour au moins deux materiaux granulaires et procede de remplissage mettant en oeuvre un tel dispositif - Google Patents
Dispositif de remplissage pour au moins deux materiaux granulaires et procede de remplissage mettant en oeuvre un tel dispositifInfo
- Publication number
- EP2167259A1 EP2167259A1 EP08759833A EP08759833A EP2167259A1 EP 2167259 A1 EP2167259 A1 EP 2167259A1 EP 08759833 A EP08759833 A EP 08759833A EP 08759833 A EP08759833 A EP 08759833A EP 2167259 A1 EP2167259 A1 EP 2167259A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filling
- hoppers
- distributor
- filling device
- hopper
- 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
- 239000008187 granular material Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 9
- 239000000463 material Substances 0.000 claims abstract description 67
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000009826 distribution Methods 0.000 description 11
- 239000002245 particle Substances 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 241000273930 Brevoortia tyrannus Species 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/004—Filling molds with powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/022—Feeding several successive layers, optionally of different materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/028—Deflecting the flow of the unshaped material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
- B30B15/304—Feeding material in particulate or plastic state to moulding presses by using feed frames or shoes with relative movement with regard to the mould or moulds
- B30B15/306—Feeding material in particulate or plastic state to moulding presses by using feed frames or shoes with relative movement with regard to the mould or moulds for multi-layer articles
-
- 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
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B1/10—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders
- B65B1/14—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders of centrifugal type
Definitions
- the present invention relates mainly to a device for filling a container with at least two materials in granular form, and to a filling method implementing such a device.
- the filling of containers for example pressing dies, with granular materials is usually done by a pipe of circular section connected by an upper end to a reservoir of granular material.
- the granular type materials may have poor flowability because of their particle size, their intrinsic roughness and / or their density. This type of filling is then not satisfactory to ensure a uniform filling of the mold, especially in the case of molds with complex geometry.
- the document FR 2 882 029 describes a filling device with a granular material allowing the filling of a matrix of complex shape.
- This device comprises a rotating body having a central passageway surrounded by a deflector, depending on the speed of rotation of the body, it is possible to control the amount of granular material deflected outwardly of the body or through the passage, thereby improving the homogeneity of filling of a matrix, even of complex shape with a relatively simple device.
- This device gives complete satisfaction, however it does not allow to perform a simultaneous filling with two granular materials without mixing the two materials.
- a filling device comprising a hopper for the separate supply of several granular materials and a rotary body provided with a central channel for the passage of a first type of material and deflector means surrounding the channel central to deflect a second type of material, filling with both types of material performing without mixing them.
- the device comprises means for feeding at least two types of materials separately to the right of distinct locations of a distribution means, the distribution means managing the filling without mixing the materials.
- the present invention also makes it possible to manage the flow rates of the various components.
- the device according to the present invention allows a good repeatability of the filling.
- the present invention therefore mainly relates to a filling device for filling with at least two granular materials simultaneously without mixing, comprising a set of hoppers and a distributor disposed downstream of the set of hoppers in a flow direction, the set of hoppers comprising at least two hoppers, an inner hopper for feeding a first type of material and an outer hopper for feeding a second type of material, the dispenser comprising a central passage arranged in line with the internal hopper and deflection means of the second type of material to the outside of the distributor arranged to the right of the outer hopper, said deflection means bordering on the less partially the central passage, the dispenser being rotatable about a longitudinal axis, the direction of which is the mean direction of flow.
- the adjectives "inside” and “outside” describe the position of the hoppers relative to one another and do not limit the invention to a geometric position of the hoppers with respect to the geometric shape of the device according to the invention.
- the deflection means may be in the form of a crown whose concave toric surface of reflection is a crown shape whose reflection surface has a V-shaped cross section.
- the distributor may comprise a central shaft of longitudinal axis connected to a wall of the central passage by blades, allowing easy connection to drive means.
- the blades are advantageously contained in planes inclined with respect to the X axis, which improves the distribution of particles of granular materials.
- the dispenser may comprise a central axis whose upper surface opposite the inner hopper forms a deflection surface for the first type of material, this deflection surface has for example a V-shaped or U-shaped profile.
- the hopper assembly may include a central channel forming the inner hopper and a peripheral channel forming the outer hopper.
- the outer channel is for example continuous to form a secession of adjacent channels.
- the present invention also relates to a method of filling a container by means of a filling device according to the present invention, comprising the steps: a) introduction of the dispenser into an upper zone of the container, b) rotation of the distributor around the longitudinal axis, c) feeding the distributor with both types of material through the set of hoppers.
- the method may advantageously comprise the step of adjusting the speed of rotation of the dispenser and or sections of passage of one or both hoppers during filling.
- the rotational speed is advantageously fixed at a value allowing an identical flow rate for the two types of material.
- FIGS. 2A and 2B are perspective views of two exemplary embodiments of a filling device according to the present invention
- FIGS. 3A and 3B are diagrammatic sectional views of the device of FIG. 2B during filling
- FIG. 4 is a graphical representation of the evolution of the flow rate as a function of the speed of rotation of the filling device according to the invention for each of the materials;
- FIG. 5 is a graphical representation of an example of an evolution of the speed of rotation of the dispenser according to the invention over time to obtain the filling of FIG. 3B;
- FIG. 7 is a graphical representation of the evolution of the flow rate in the two materials as a function of the speed of rotation of the dispenser according to the invention.
- Granular-type materials are understood in the present description as any material formed of a set of distinct elements of uniform or variable sizes, for example between a few nanometers and several centimeters. Powdered materials are of course covered by this expression.
- the device comprises a set of feed hoppers 6 for bringing several types of granular materials, two in the example shown, at a dispensing means 8 of these materials without mixing them.
- Each of the hoppers may be formed of separate compartments containing different materials for the purpose of mixing them at the time of filling.
- the set of hoppers comprises a first hopper 10 formed by a central channel 10 for feeding a first type of material A, and a second hopper formed by a peripheral channel 12 bordering the central channel 10 for feeding into a second type of material B.
- the peripheral channel 12 has for example an annular shape or is formed by a succession of channels distributed circumferentially.
- the first type of granular material A is shown schematically by gray beads; and the second type of granular material B is represented by white balls.
- the central channel 10 and the peripheral channel 12 have a conical shape of common axis, forming a funnel. House could provide that they have a cylindrical shape, or that one of them only has a conical shape and the other is a cylindrical shape.
- the dispensing means 8 is disposed below the feed hopper 6, which is adapted to be rotated about a longitudinal axis X.
- the axis X has a direction which is the mean direction of flow .
- Average flow direction means the general direction of the particles of the materials, which extends from the set of hoppers 6 to the bottom of the container, which is in the example shown the vertical direction.
- the dispensing means comprises a central passage 14 in line with a lower end 10.1 of the central channel 10 of the hopper 6 for guiding the first type of material A towards a central zone A3 of the die 2.
- the dispensing means also comprises deflection means 16 surrounding the central passage 14.
- the means 16 are intended to deflect the granular material particles B outwardly away from the axis X.
- the deflection means 16 are distributed uniformly around the central passage 14 and surround continuously the central passage 14, which allows a homogeneous filling in a zone B3 of the outer container of the die 2, surrounding the central zone A3.
- the deflection means 16 are at the right of a lower end 12.1 of the peripheral channel 12 of the second type of material B.
- the axis of rotation of the distribution means 8 and that of the central passage 14 are combined, but one could predict that they are separate.
- the central passage 14 has been shown as a cone of conicity pointing downwards, but a cylindrical shape may be suitable. The shape is chosen to control the trajectory that one wants to impose on the powder.
- the distributor 8 is put in place in the die 2 at its upper part, the set of hoppers situated above, the ends 10.1 of the central channel 10 and 12.1 of the peripheral channel 12 of the hopper at the right the central passage 14 and the deflection means 16.
- the central channel 10 and the peripheral channel 12 are filled with materials A and B respectively.
- the distributor is rotated about the axis X and the materials A and B flow towards the distributor 8.
- the rotation is symbolized by the arrow 15.
- the material A flows in the central passage 14 and the particles of the material B are deflected radially outwardly away from the axis X.
- part of these particles strikes the inner wall of the die 2 and is deflected a second time, the other portion falls directly into the bottom of the die 2.
- the dispenser is disposed near the bottom of the die 2 at the beginning of the filling and rises along the X axis during filling.
- the dispenser is disposed near the bottom of the die 2 at the beginning of the filling and rises along the X axis during filling.
- the central zone A3 of the matrix comprises only material A and the peripheral zone B3 comprises only material B.
- the distributor comprises a central shaft 18 of X axis rigidly connected to the wall 22 of the central passage 14 by connection means 20.
- the shaft 18 is engaged with a rotational drive means (not shown) for rotating the distributor.
- connection means 20 are in the form of planar blades contained in a plane containing the X axis, there are four, but one could also provide arms.
- the blades are inclined relative to the axis X so as to improve the flow of the granular material A.
- the deflection means 16 are, in this example formed by a concave ring crown 17, the bottom being, seen in cross section, delimited by an arc of a circle.
- the ring is delimited by a radially inner circular border 26 and a radially outer circular border 28.
- the radially inner edge 26 is disposed vertically below the radially outer edge 28. But this is in no way limiting, the two edges could be of the same height, or the radially inner edge 26 could be arranged vertically above the radially outer edge 28
- the second embodiment of the dispenser shown in FIG. 2B differs from the device of FIG. 2A in that the deflection means 16 are formed by a ring 17 'having a V-shaped cross section.
- the ring is delimited by a radially inner circular edge 26 'and a radially outer circular edge 28'.
- the radially inner edge 26 ' is disposed vertically below the radially outer edge 28'.
- V-shaped and U-shaped cross-sections offer different flow rates as a function of the rotation speed VD v and D 11 , as shown in FIG. 4, which makes it possible to adapt the speed.
- the quality of the fills obtained depends on the management of granular material flow rates A and B.
- the flows of material A and material B can be controlled independently.
- the flow rates will be constant throughout the filling phase. Fills are not scalable over time, and are therefore constant over height. We could also consider hoppers section variable passage.
- the invention makes it possible to regulate the flow rate of material B, independently of the flow rate of material A.
- the speed V is in rev / min and the flow D is in g / s, the material A is stainless steel and the material B is iron powder.
- the line A2 represents the evolution of the flow rate of material A as a function of the speed, which appears to be independent of the speed, in fact the speed of the distributor has no influence on the flow of the material A in the central passage. 14.
- the variation of the flow rate of the material B as a function of the speed of rotation of the distributor is of the polynomial type.
- the speed of rotation to be used will be the point of intersection between the two curves A2 and B2, ie a speed V E the order of 480 rpm.
- FIG. 5 shows the evolution of the speed of the dispenser to obtain the distribution of FIG. 3B. It can be seen that the speed is increased during a first phase I until reaching the larger diameter zone, then the speed is reduced until the end of the filling during a second phase II. Since the two phases are of equal duration and the extreme speeds are the same, a symmetrical shape is obtained with respect to a horizontal plane P.
- FIG. 6 shows an alternative embodiment of the present invention, in which the distributor comprises a central shaft 18 delimiting with the wall an annular channel for the powder A, this central shaft 18 has on its upper end on the the hopper 10 has a deflection surface 32 for the material A.
- This surface may have a U-shaped or V-shaped profile, ie it may be in the form of a round-bottomed or conically bottomed bowl.
- This deflection surface makes it possible to improve the distribution of material A, as shown schematically in FIG. 6. Furthermore, this variant has the advantage of allowing to keep the bunkers 10, 12 full, outside the filling operations.
- the restarting of the filling device is therefore faster, moreover there is more or very little material lost since it is no longer necessary to empty the hoppers.
- the filling device according to the present invention has been described for two materials A and B, but a filling device for the simultaneous and distinct filling of more than two materials is not outside the scope of the present invention. Indeed, one could provide three or more concentric hoppers, and a distributor provided with a central channel, a peripheral channel and deflection means surrounding the peripheral channel and each disposed to the right of a corresponding hopper.
- the device may, for example have a diameter of 15 mm and a height of 10 mm, and the grains of the powder used may have a diameter of 150 microns. This device allows a filling of a few grams to several kilograms, the object will then have a volume of between 1 mm 3 and 1 dm 3 .
- the filling device (hopper and distributor) rotates about an axis parallel to the X axis and distinct and / or moves parallel to it in order to achieve even more complex distributions.
- the device according to the present invention is very simple embodiment, in particular the dispenser can for example be made in one piece, for example plastic, metal, it can be manufactured by sintering, laser, machining or molding.
- the motor can be offset from the axis or located on the axis, it can for example be carried by the axis of the distributor in the case where it has one. In the opposite case, it is also possible to associate a drive system linked to the distributor, for example of the belt, jaw or pawn type.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Basic Packing Technique (AREA)
- Supply Of Fluid Materials To The Packaging Location (AREA)
- Chutes (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0755223A FR2916427B1 (fr) | 2007-05-23 | 2007-05-23 | Dispositif de remplissage pour au moins deux materiaux granulaires et procede de remplissage mettant en oeuvre un tel dispositif |
| PCT/EP2008/056229 WO2008142092A1 (fr) | 2007-05-23 | 2008-05-21 | Dispositif de remplissage pour au moins deux materiaux granulaires et procede de remplissage mettant en oeuvre un tel dispositif |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2167259A1 true EP2167259A1 (fr) | 2010-03-31 |
| EP2167259B1 EP2167259B1 (fr) | 2011-11-23 |
Family
ID=38941925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08759833A Not-in-force EP2167259B1 (fr) | 2007-05-23 | 2008-05-21 | Dispositif de remplissage pour au moins deux materiaux granulaires et procede de remplissage mettant en oeuvre un tel dispositif |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8316896B2 (fr) |
| EP (1) | EP2167259B1 (fr) |
| JP (1) | JP5243528B2 (fr) |
| CN (1) | CN101743079B (fr) |
| AT (1) | ATE534480T1 (fr) |
| ES (1) | ES2376388T3 (fr) |
| FR (1) | FR2916427B1 (fr) |
| WO (1) | WO2008142092A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7321824B1 (en) | 2002-12-30 | 2008-01-22 | Aol Llc | Presenting a travel route using more than one presentation style |
| DE102014006374A1 (de) * | 2014-05-05 | 2015-11-05 | Gkn Sinter Metals Engineering Gmbh | Vorrichtung zur Herstellung eines Rohlings nebst Verfahren hierzu und Rohling |
| EP3326737B1 (fr) * | 2016-11-25 | 2020-04-08 | Höganäs AB (publ) | Distributeur pour un sabot de remplissage pour le moulage par compression |
| CN113333746B (zh) * | 2021-07-21 | 2022-12-16 | 浙江中平粉末冶金有限公司 | 一种粉末冶金用冲压设备 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5145345B1 (fr) * | 1967-11-17 | 1976-12-03 | ||
| SU609633A2 (ru) * | 1975-07-11 | 1978-06-05 | Кишиневский Политехнический Институт Им. С.Лазо | Устройство дл укладки бетонной смеси |
| BE899420A (nl) * | 1984-04-13 | 1984-07-31 | Transtec Operating Ltd Company | Inrichting voor het aanvoeren, verdelen en kompakteren van los gestorte stoffen in een opslaghouder, voertuig of vaartuig. |
| JPH072506Y2 (ja) * | 1987-01-30 | 1995-01-25 | 三菱原子燃料株式会社 | 粉末充填用器具 |
| JPH0810608A (ja) * | 1994-07-01 | 1996-01-16 | C C A Kk | 異種粉粒体の同時供給装置、及び、異種粉粒体の同時供給装置を用いた模様入り成形体の成形方法 |
| JP2761857B2 (ja) * | 1995-06-26 | 1998-06-04 | 千代田技研工業株式会社 | 模様つきコンクリートブロックの製造法と製造装置 |
| 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 |
| 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 |
-
2007
- 2007-05-23 FR FR0755223A patent/FR2916427B1/fr not_active Expired - Fee Related
-
2008
- 2008-05-21 US US12/600,061 patent/US8316896B2/en not_active Expired - Fee Related
- 2008-05-21 JP JP2010508835A patent/JP5243528B2/ja not_active Expired - Fee Related
- 2008-05-21 EP EP08759833A patent/EP2167259B1/fr not_active Not-in-force
- 2008-05-21 WO PCT/EP2008/056229 patent/WO2008142092A1/fr not_active Ceased
- 2008-05-21 AT AT08759833T patent/ATE534480T1/de active
- 2008-05-21 ES ES08759833T patent/ES2376388T3/es active Active
- 2008-05-21 CN CN2008800160855A patent/CN101743079B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008142092A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US8316896B2 (en) | 2012-11-27 |
| CN101743079A (zh) | 2010-06-16 |
| JP2010527853A (ja) | 2010-08-19 |
| JP5243528B2 (ja) | 2013-07-24 |
| FR2916427A1 (fr) | 2008-11-28 |
| US20100320223A1 (en) | 2010-12-23 |
| ES2376388T3 (es) | 2012-03-13 |
| EP2167259B1 (fr) | 2011-11-23 |
| FR2916427B1 (fr) | 2012-01-13 |
| CN101743079B (zh) | 2012-07-04 |
| ATE534480T1 (de) | 2011-12-15 |
| WO2008142092A1 (fr) | 2008-11-27 |
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