EP2049236A1 - Dispositif d'homogénéisation de poudre - Google Patents

Dispositif d'homogénéisation de poudre

Info

Publication number
EP2049236A1
EP2049236A1 EP07765384A EP07765384A EP2049236A1 EP 2049236 A1 EP2049236 A1 EP 2049236A1 EP 07765384 A EP07765384 A EP 07765384A EP 07765384 A EP07765384 A EP 07765384A EP 2049236 A1 EP2049236 A1 EP 2049236A1
Authority
EP
European Patent Office
Prior art keywords
rod
powder
shaped elements
homogenizing
unit
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
Application number
EP07765384A
Other languages
German (de)
English (en)
Other versions
EP2049236B1 (fr
Inventor
Ralf Schmied
Heinrich Loecht
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2049236A1 publication Critical patent/EP2049236A1/fr
Application granted granted Critical
Publication of EP2049236B1 publication Critical patent/EP2049236B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/36—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods
    • B65B1/363—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods with measuring pockets moving in an endless path
    • B65B1/366—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods with measuring pockets moving in an endless path about a horizontal axis of symmetry
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/60—Mixing solids with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
    • B01F31/441—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement performing a rectilinear reciprocating movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
    • B01F31/449—Stirrers constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/402—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements
    • 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
    • B65B37/00—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged
    • B65B37/04—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged by vibratory feeders

Definitions

  • the present invention relates to a device for homogenizing powder, which powder is then placed in a container, e.g. a capsule or packaging is filled.
  • a device for homogenizing powder is known from the prior art such that, for example, an agitator is provided with a rotating stirrer, which is immersed in the powder and is rotated.
  • the rotating stirrer attempts to dissolve so-called powder bridges.
  • powder bridges for example of medicaments o. ⁇ .
  • the device according to the invention for the homogenization of powder has the advantage that, with a simple structure and cost-effective manufacturability, it enables reliable homogenization of a powder.
  • unwanted powder concentrations can be dissolved with great process reliability.
  • the device for homogenizing powder comprises a drive device and a homogenization unit.
  • the Driving device moves the homogenization unit back and forth at least in a horizontal direction.
  • the homogenization unit comprises a plurality of rod-shaped elements which are at least partially immersed in a powder to be homogenized.
  • the driven homogenizing unit the rod-shaped members are reciprocated in the horizontal direction, so that the rod-shaped members are moved by the powder in the lateral direction.
  • the rod-shaped elements are arranged substantially in the vertical direction.
  • the rod-shaped elements preferably have a circular outer cross-section.
  • the cross-section of the rod-shaped elements may be oval or polygonal, e.g. hexagonal or octagonal, is.
  • the drive device comprises an electromagnet and a vibrating plate with a pole element made of a ferromagnetic material.
  • the oscillating plate is movably mounted and the pole element is arranged in such a way to the electromagnet that between them a vertical gap is formed, in order to actuate the pole element by means of an actuation of the electromagnet
  • the homogenizing unit is connected to the vibrating plate and is reciprocated by the excited vibrating plate in the horizontal direction.
  • the oscillating plate is preferably mounted swingably by means of at least one leaf spring.
  • a plurality of leaf springs in particular four leaf springs, at each corner of the swing plate, a leaf spring provided.
  • the drive device comprises a piezoelectric actuator or a pneumatic actuator for moving the homogenization unit.
  • the rod-shaped elements are designed as tubes and connected to a pressure range contained compressed air.
  • This sub-mixture of compressed air has the particular advantage that the flowability of the powder is significantly improved.
  • the compressed air should preferably be dry. Furthermore, the pressure of the compressed air should not be too high to prevent the powder from blowing off.
  • the homogenization unit comprises a pressure chamber in which a throttle device is arranged.
  • the throttle device provides a uniform distribution of the compressed air into the adjacent tubes.
  • the throttle device is a block of a microporous, air-permeable material.
  • an adapter is preferably arranged between the drive device and the homogenizing unit.
  • the homogenization unit is in each case attached to the adapter or detached from this.
  • a quick replacement of the apparatus for homogenizing powder for example for another powdered product, can be carried out.
  • the adapter also has a compressed air connection.
  • the tube-shaped rod-shaped elements have at their free end, that is, the
  • the openings may be provided as punctiform openings and / or as slots.
  • the slots may be formed as straight slots and / or as arcuate slots.
  • the slots preferably have a length which corresponds to approximately 1/3 of the circumference of the tubes.
  • the Slots are particularly preferably offset along the circumference, arranged at different heights and in different directions.
  • a particularly good homogenization of the powder can be achieved if a distance from adjacent rod-shaped elements is the same.
  • the rod-shaped elements have different lengths.
  • the lengths of rod-shaped elements which are arranged on the edge of the vibrating plate are shorter than the rod-shaped elements further in the middle.
  • the present invention is particularly preferably used in conjunction with a metering device for metering powder into vessels, such as e.g. Capsules or similar, used.
  • the powder may be, for example, a drug, or a food, e.g. Flour, coffee, cocoa, etc.
  • the invention is thus particularly preferably used in filling and closing machines.
  • Figure 1 is a schematic, perspective view of an apparatus for
  • FIG. 2 shows a view of the drive device of the device for homogenizing powder
  • FIG. 3 shows a sectional view of the device for homogenizing
  • Powder of Figure 1 which is used in conjunction with a vacuum filling wheel
  • FIGS. 4a-4c show various views of a rod-shaped element of the homogenizing unit
  • Figure 5 is a schematic sectional view of a device for homogenization according to a second embodiment of the invention PHg in conjunction with a vacuum filling wheel, and
  • FIG. 6 is a perspective view of the device shown in FIG.
  • the powder homogenizing apparatus 1 comprises two parts, namely, a homogenizing unit 2 and a driving device 3.
  • the homogenizing unit 2 comprises a plurality of rod-shaped members 4 arranged in the vertical direction.
  • two juxtaposed rows of rod-shaped elements 4 are provided. Adjacent rod-shaped elements of each row have the same distance from each other. The two rows are arranged offset to one another.
  • the rod-shaped elements 4 are shown in more detail in Figures 4a to 4c. As can be seen in particular from FIG.
  • rod-shaped elements 4 which is a perspective view of a rod-shaped element 4, the rod-shaped elements 4 are designed as tubes with a wall 4 a and a passage 4 b oriented in the longitudinal direction. Further, at the free end of the rod-shaped elements 4 a plurality of
  • FIG. 4 a shows a schematic overall view of a rod-shaped element 4, and FIG. 4 b shows a detail of the rod-shaped element.
  • the homogenizing unit 2 further comprises a housing 7, in which a pressure chamber 5 is arranged.
  • a throttle device 6 is arranged, which is made of a microporous, air-permeable material.
  • the throttle device 6 is arranged in the flow direction immediately before the rod-shaped elements 4 (see Figure 1). As a result, it can be prevented that a compressed air supplied into the rod-shaped elements 4 has too high a pressure.
  • the pressure chamber 5 of the homogenization unit 2 also has a connection opening 9, through which compressed air is supplied.
  • the drive device 3 which is shown in the lower part of Figure 1, comprises a centrally disposed electromagnet 10 and a vibrating plate 11 with a pole element 12.
  • the pole member 12 is fixed to the vibrating plate 11 and directed in the direction of the electromagnet 10.
  • FIG. 2 which is a rear view of the drive device 3 shown in FIG. 1, a vertical gap 17 is formed between the pole element 12 and the electromagnet 10.
  • the oscillating plate 11 is suspended by means of four leaf springs 13 swingably on a housing 14 of the drive means 3. As can be seen from FIG. 1, two leaf springs 13 are arranged at each lateral end of the oscillating plate 11.
  • an adapter 15 with a compressed air outlet 16 is arranged on the drive device 3.
  • the adapter 15 is connected to the oscillating plate 11 and has a threaded opening 18 at its upper portion. By means of this opening, the homogenization unit 2 can be fastened to the adapter 15 by means of a screw element 8.
  • the screw 8 has a large attack area, so that the attachment or release of the homogenization unit 2 can be done by the drive device 3 by hand.
  • a drive device 3 can thus be used for a plurality of different homogenization units, which can be exchanged easily and quickly.
  • FIG. 3 shows a use of the device 1 according to the invention in a vacuum filling wheel 21.
  • the vacuum filling wheel 21 comprises a tapered storage chamber 22, in which a powder 20 to be filled is arranged.
  • the vacuum filling wheel 21 comprises a filling wheel 23 with four metering chambers 24a, 24b, 24c and 24d, which are arranged at the same distance from each other on the circumference of the filling wheel 23.
  • a filling of the Do- Sieren chambers takes place by means of an arcuate negative pressure portion 25 by sucking the powder and emptying by means of an overpressure region 26 by pushing out with the aid of gravity.
  • a filling takes place in containers 27, which are supplied on a conveyor belt 28.
  • the filling wheel 23 rotates in the direction of the arrow R and is driven by a drive, not shown.
  • a filling of a single metering chamber of the filling wheel 23 takes place in such a way that a negative pressure is generated in the position of the metering chamber 24b designated POS.l since the metering chamber is connected to the vacuum region 25.
  • powder is sucked into the metering chamber 24b.
  • At the bottom of the metering chambers 24a, 24b, 24c and 24d are each arranged filters to prevent the sucked powder is sucked into the negative pressure region 25.
  • the filling wheel 23 continues to rotate to the position 2 (item 2), in which the metering chamber is still connected to the vacuum region 25.
  • the metering chamber In position 3 (item 3), the metering chamber is then connected to the overpressure region 26, so that the powder 20a metered in the metering chamber is pushed out of the metering chamber. Here, the emptying of the dosing is also supported by gravity. The metered powder 20 then falls into a container 27, as shown in FIG.
  • the powder 20 must be as homogeneous as possible in the storage chamber 21. This is achieved by means of the device 1 according to the invention.
  • the rod-shaped elements 4 of the homogenizing unit 2 are partially immersed in the powder 20 located in the storage chamber 22.
  • the drive device 3 moves the homogenization unit 2 back and forth in the direction of the double arrow A in the horizontal direction.
  • the rod-shaped elements 4 which all have a circular cross-section and are formed as a tube, product concentrations, which may occur in particular on the surface of the powder in the storage chamber 22, dissolved.
  • compressed air is introduced into the powder 20 through the exposed end of the passage 4b and the slits 4c through the rod-shaped members 4 formed as tubes. By this sub-mixture of compressed air, the flowability of the powder
  • the homogenization of the powder 20 is particularly gentle on the product.
  • the introduction of vibrational energy into the powder 20 which is as uniform as possible can thus be achieved. This additionally supports the dissolution of unwanted powder concentrations, in particular on the surface.
  • FIGS. 5 and 6 Identical or functionally identical parts are again denoted by the same reference numerals as in the first embodiment.
  • the device 1 for homogenizing powder essentially corresponds to that of the first exemplary embodiment.
  • the apparatus 1 for homogenizing powder of the second embodiment has rod-shaped elements 4, which have different lengths Ll, L2, L3.
  • the lengths of the individual rod-shaped elements 4 are each selected such that they adapt to the tapered shape of the storage chamber 24 or the outer circumference of the filling wheel 23.
  • the rod-shaped elements 4 can be immersed deeper into the powder 20, as compared to the embodiment.
  • the rod-shaped elements 4 are again formed as tubes and with openings in the form of
  • the homogenizing unit 2 is moved back and forth in the direction of the double arrow A in the horizontal direction by the drive device 3.
  • the respective movement path of the homogenization unit in one or the other direction is relatively small in order to avoid damage to the rod-shaped elements 4 through contact with the storage chamber 22.
  • the filling wheel 23 is furthermore designed as a double filling wheel, so that two containers 27 can be filled simultaneously with metered powder 20a in parallel. As a result, the capacity of the filling machine is doubled.
  • this embodiment corresponds to the first embodiment, so that reference may be made to the description given there.
  • the drive device 3 for all described embodiments can also be designed such that the homogenization unit 2 is moved back and forth in two different directions.
  • the devices are particularly preferably perpendicular to each other. In this case it is possible for the movement to be carried out in two different directions one after the other or for the two directions of movement to overlap, whereby a circular or oval movement is achieved.
EP07765384A 2006-07-28 2007-06-13 Dispositif d'homogénéisation de poudre Not-in-force EP2049236B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006035051A DE102006035051A1 (de) 2006-07-28 2006-07-28 Vorrichtung zur Homogenisierung von Pulver
PCT/EP2007/055800 WO2008012139A1 (fr) 2006-07-28 2007-06-13 Dispositif d'homogénéisation de poudre

Publications (2)

Publication Number Publication Date
EP2049236A1 true EP2049236A1 (fr) 2009-04-22
EP2049236B1 EP2049236B1 (fr) 2010-11-10

Family

ID=38512415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07765384A Not-in-force EP2049236B1 (fr) 2006-07-28 2007-06-13 Dispositif d'homogénéisation de poudre

Country Status (7)

Country Link
US (1) US8147118B2 (fr)
EP (1) EP2049236B1 (fr)
JP (1) JP5431154B2 (fr)
CN (1) CN101495219B (fr)
AT (1) ATE487535T1 (fr)
DE (2) DE102006035051A1 (fr)
WO (1) WO2008012139A1 (fr)

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Publication number Priority date Publication date Assignee Title
JP5497760B2 (ja) 2009-07-07 2014-05-21 株式会社クラレ リン酸カルシウム系粒子の製造方法
CN101744727A (zh) * 2010-03-22 2010-06-23 浙江富昌机械有限公司 硬胶囊充填机的药粉回收装置
CN101844044B (zh) * 2010-05-20 2012-07-04 金刚新材料股份有限公司 粉料连续均化分级系统
WO2012012706A2 (fr) * 2010-07-23 2012-01-26 First Solar Inc Mélange pulvérulent
CN102424121B (zh) * 2011-08-15 2013-08-14 广东福利龙复合肥有限公司 防板结的复合肥颗粒包装设备及方法
PL2740670T3 (pl) 2012-12-07 2016-08-31 Hoefliger Harro Verpackung Układ napełniania do napełniania proszku i sposób do tego
WO2015044796A1 (fr) * 2014-05-14 2015-04-02 Vezzani Giuseppe Machine de dosage de pâtes alimentaires, en particulier pour des pâtes de type long
CN111420786B (zh) * 2020-05-07 2021-07-16 江西诺邦生物科技有限公司 一种粉碎研磨一体处理设备

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Also Published As

Publication number Publication date
JP5431154B2 (ja) 2014-03-05
DE502007005622D1 (de) 2010-12-23
WO2008012139A1 (fr) 2008-01-31
CN101495219B (zh) 2011-11-16
US8147118B2 (en) 2012-04-03
DE102006035051A1 (de) 2008-02-21
ATE487535T1 (de) 2010-11-15
CN101495219A (zh) 2009-07-29
EP2049236B1 (fr) 2010-11-10
JP2009544547A (ja) 2009-12-17
US20100157721A1 (en) 2010-06-24

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