EP2281683B1 - Procédé de production d'un élément de poudre comprimé et dispositif correspondant - Google Patents
Procédé de production d'un élément de poudre comprimé et dispositif correspondant Download PDFInfo
- Publication number
- EP2281683B1 EP2281683B1 EP09167149.5A EP09167149A EP2281683B1 EP 2281683 B1 EP2281683 B1 EP 2281683B1 EP 09167149 A EP09167149 A EP 09167149A EP 2281683 B1 EP2281683 B1 EP 2281683B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- powder
- pressing
- compression chamber
- blanks
- pressed
- 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.)
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- 239000000843 powder Substances 0.000 title claims description 367
- 238000000034 method Methods 0.000 title claims description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 230000006835 compression Effects 0.000 claims description 123
- 238000007906 compression Methods 0.000 claims description 123
- 238000003825 pressing Methods 0.000 claims description 109
- 239000011230 binding agent Substances 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 25
- 239000012071 phase Substances 0.000 description 16
- 239000002537 cosmetic Substances 0.000 description 9
- 239000003086 colorant Substances 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 235000017606 Vaccinium vitis idaea Nutrition 0.000 description 4
- 244000077923 Vaccinium vitis idaea Species 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000004040 coloring Methods 0.000 description 2
- -1 com Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 239000012072 active phase Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
- B30B11/027—Particular press methods or systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
- B30B15/0017—Deairing means
Definitions
- the invention relates to a method and an apparatus according to the preamble of claim 12 for the production of pressed powder elements from powder blanks, which are pre-pressed from a certain volume of cosmetic loose powder.
- Such a device is from document JP 62 2155 15 disclosed.
- the base material is often a mixture of various constituents, which each have a dust, powder, com, or granular state and have been mixed or processed in this state to form the material to be pressed.
- Cosmetic powders usually consist of a filler phase, a binder phase and a coloring phase and an active phase together.
- the binder phase may in principle be a separate phase or be realized by an oil component which has been sprayed onto the filler phase.
- a pressed powder element is produced by means of a mold.
- the shape is designed such that it has a plurality of fillable areas. These areas can, for example, form a logo and its border. These different areas can be filled with different loose powders. Since the areas extend over the entire height of the mold, a lettering resulting from the areas is also completely embedded in the powder element and not only placed on it as described above. After filling, the mold is removed and the still loose powder is pressed together to form a powder element. In this way, a powder element, which, for example, has a lettering that extends through the entire height of the pressed powder element and therefore can not be worn by the use of the powder element.
- the inventive method for producing a pressed powder element comprises, that pre-pressing of loose powder to a first powder blank and the pre-pressing of loose powder to a second powder blank and the subsequent compression of the at least two pre-pressed powder blanks to form a powder element.
- the pre-pressing of the loose powder into powder blanks is done for example in a compression chamber by means of a movable punch which reduces the volume available for the loose powder volume in the compression chamber and thus mechanically pressed and / or the pre-pressing is done pneumatically by a negative pressure generated in the compression chamber ,
- the volume available for the loose powder in the compression chamber can be used during the feeding of the powder as a metering metric for the loose powder, so that after feeding the loose powder can be pre-pressed precisely to powder blanks.
- the loose powder is pre-pressed to a powder blank.
- the pre-pressed powder blanks have the advantage over loose powder that there can be no mixing of the powder and that the powder blanks are easier to further process and transport and can be arranged side by side without the need for a mold. Furthermore, the powder blanks offer the advantage that they can be pre-pressed in consistent quality and high quantities, without there being inhomogeneous fillings of the molds, as in bulk fillings, which can then lead to the fact that the pressed powder element is not the same during compression Quality. According to the invention at least two of the pre-pressed powder blanks in a further process step compressed to form a pressed powder element.
- the production of pressed powder elements by pre-pressing of loose powder into powder blanks has the advantage that it can come to no mixing of the powder and the powder blanks can be used as in a modular system.
- this modular system it is possible to form a pressed powder element of at least two pre-pressed powder blanks by compressing these at least two blanks, so that when the powder blanks are assembled, a pattern, image, lettering or design can be formed, which extends through the entire height of the pressed powder element and thus does not disappear by use of the powder element.
- the use of the powder blanks also makes it possible to produce optically sharp dividing lines in the powder element, for example between two different colors.
- the method according to the invention may comprise, for example, that the pre-pressing of the loose powder to a first powder blank pneumatically in a first compression chamber by means of a negative pressure generated and that the pre-pressing of the second powder blank from loose powder pneumatically done in a second compression chamber by means of a generated negative pressure.
- pre-pressing the loose powder into a first powder blank according to the invention may also include mechanically pre-pressing the loose powder in a first compression chamber by means of a punch movable in the first compression chamber and pre-pressing the second powder blank, mechanically pre-pressing the loose powder in a second compression chamber by means of a movable in the second compression chamber punch.
- pre-pressing the loose powder into a first powder blank may also include mechanically pre-pressing the loose powder in a first compression chamber by means of a punch movable in the first compression chamber and pre-pressing the second powder blank, mechanically pre-pressing the loose powder in the first compression chamber by means of a movable in the first compression chamber punch after the first powder blank was pre-pressed.
- the pre-pressing may also include adjusting the volume of a compression chamber by means of the movable punch, the stamping bottom with walls of the compression chamber and thus forms the compression space and pre-pressing the loose powder supplied to a powder blank with the help of the punch and / or by means of a generated negative pressure ,
- the amount of loose powder to be pressed can also be set precisely.
- These volumes thus define how much powder is to be supplied to the respective compression space. It is ensured by the adjustable volume that always same batches of loose powder are pre-pressed to a powder blank, so that, for example, the height of the pre-pressed powder blanks is always the same. Also, with the adjustable volume on the different properties of different powders can be received.
- the two pre-pressed powder blanks have the same height.
- the same height at the pre-pressed powder blanks ensures that the powder of at least two Do not mix powder blanks during subsequent compression into a pressed powder element.
- the at least two pre-pressed powder blanks can for example also be pre-pressed from different loose powders, so that the at least two pre-pressed powder blanks, for example, have a different color or have a different active component. It can be discussed in the separate pre-pressing on the different properties of different loose powders.
- the powder blanks produced during pre-pressing for example, only hold together by adhesion, so that the blanks take on the shape of the cross-section of the device in which they are pre-pressed and retain this shape due to the adhesion.
- the shaping of the at least two powder blanks and, accordingly, the device in which they are pre-pressed can be designed such that the powder element has a specific shape after the pressing together of the at least two powder blanks.
- a pressure on the pre-pressed powder blanks are exercised, the pressure can be selected so high that the binder phase can be activated in the at least two pre-pressed powder blanks.
- the compressed pre-pressed powder blanks for example, connect to a solid powder element.
- the pressure can also cause the two pre-pressed powder blanks hold together by mechanical adhesion, without causing a binder phase is activated.
- This can be the compression of the at least two powder blanks comprise that they are pressed together in a pan, wherein the compression can be done by means of a punch that can exert pressure on the at least two powder blanks.
- the means for pre-pressing - in this case the punch - for example, be controlled away.
- the person skilled in the art also knows of other possibilities with which the same height of the pre-pressed blanks can be achieved.
- the apparatus has a first and a second means for pressing loose powder to a first and a second powder blank and a means for compressing the at least two powder blanks to form a pressed powder element.
- loose powder is pre-pressed with the first means for pre-pressing loose powder to a first powder blank and the second means for pre-pressing loose powder loose powder is pre-pressed to a second powder blank, then with the means for compressing the at least two pre-pressed powder blanks for Formation of a pressed powder element compressed.
- the first means for prepressing the first powder blank and the second means for prepressing the second powder blank can be configured identically.
- the first means for prepressing the first powder blank may be the same means as the second means for prepressing the second powder blank, wherein the at least two powder blanks are then pre-pressed in succession.
- one of the invention includes for example, a compression chamber in which the loose powder can be pre-pressed into a powder blank.
- this compression chamber for example, a stamp with a stamp base, wherein the punch is movable in the compression chamber.
- the die bottom is arranged such that it closes with walls of the compression chamber and thus it forms a compression space within the compression chamber.
- the volume of the compression chamber can be adjusted by the position of the punch bottom in the compression chamber.
- the volume can also be changed by other means.
- the walls of the compression chamber can be changed or replaced.
- the loose powder can be supplied through an opening into the compression space supply line and metered by the adjustable volume precisely.
- the supply line establishes a connection between the loose powder held in a storage container and the compression space.
- other supply lines can lead, for example, for more different powders in the compression space.
- one or the plurality of supply lines can also be arranged directly on the stamp.
- the stamp may be hollow, for example, in the interior and be connected via the supply line to the reservoir. Alternatively, the supply line may be directly in communication with the stamp base. If the movable plunger is inserted further from an initial position in the compression chamber, the volume of the compression space, and thus the volume available for the loose powder supplied, is reduced, thereby mechanically pre-pressing the loose powder into a powder blank.
- the means for pre-pressing may also have a connection between the compression chamber and a pressure line.
- a negative pressure can be generated, with the help of which the loose powder can be sucked from the reservoir into the compression chamber.
- the loose powder can be pneumatically pre-pressed to a powder blank.
- the pressure line can also be arranged directly on the stamp.
- a negative pressure source and a pressure source with the interposition of a valve can be connected to the pressure line.
- the positive pressure and negative pressure source can also be given only by a pneumatic device, which is for example able to produce alternating pressure or negative pressure.
- the vacuum source can be generated in the compression chamber via the pressure line, the negative pressure.
- an overpressure can be generated, which can be used, for example, to release the mechanically and / or pneumatically pre-pressed powder blank from the stamp base and thus simplify the removal.
- the pressure exerted by the pressure gas pressure is exploited to overcome the adhesion of the pre-pressed blank on the stamp base and thus facilitate the removal of the blank or to solve this completely from the stamp base.
- the applied pressure can be carried out in two stages, in a first stage, for example, only a slight overpressure can be exercised, which serves to release the pre-pressed powder blank from the stamper and in a second stage, for example, a higher pressure can be exerted after removal of the pre-pressed powder blank ensures that any powder residues are removed pneumatically from the stamp base.
- the compression chamber can also have a filter.
- the filter can also be arranged, for example, in a wall of the compression chamber.
- the punch bottom of the punch can divide the compression chamber into two areas, an area in which opens the supply line for the loose powder and another area in which the pressure line opens.
- the stamp base may comprise the filter and thus establishes a connection between the two regions.
- the pressure line is in direct communication with the filter in the die bottom.
- the pressure line for example, open directly into the stamp.
- the negative pressure in the compression space can be provided to suck the loose powder into the compression space.
- the filter can consist of a mechanically strong material.
- a filter made of a metal mesh is a filter made of a metal mesh.
- the filter is realized by a metal plate with holes.
- a metal plate is advantageous because it has a very long life. In addition, it can withstand greater pressures well.
- the hole size in the metal plate is preferably selected such that the individual powder grains can not penetrate through the holes. But even larger holes are possible because the individual Pudergromer often wedged on the holes and thus can not leave the compression chamber through the holes. However, the holes should preferably make up less than 20% of the stamp bottom area.
- the filter can also consist of several elements.
- the filter may consist of two or more of the metal plates described above, which are preferably arranged one above the other.
- the filter may consist of a coarse support fabric, which is mechanically strong and be designed, for example, multi-layered, with fine filter fabric can be arranged between the Stützgewebe füren.
- one or more membranes for example made of nonwoven fabric, may be arranged in front of or behind the metal plate or the other filter element or the other filter elements. As a result, powder loss through the vacuum line can be further minimized.
- a means for filtering on or in the pressure line This means for filtering is located from the compression space behind the filter described above and thus closer to the pressure source.
- a conventional membrane can be used, since this membrane does not have to withstand the pressing pressures in the compression space.
- the various embodiments can be precise pre-press powder blanks from loose powder, which are required for the inventive method for the production of powder elements.
- the first and second means for pre-pressing the powder blanks can also be formed only by one of the apparatus described above, so that powder blanks are pre-pressed in succession. Is that loose powder pre-pressed by the first and second means for pre-pressing, so the resulting powder blanks can be arranged in any shape. Subsequently, the arranged powder blanks can then be compressed, for example by means of a hydraulic, servomechanical or servo-hydraulic punch.
- the individual pre-pressed powder blanks can be arranged side by side, for example in a pan.
- the described arrangement of the individual pre-pressed powder blanks can for example also be done by directly pre-pressing the powder blanks in the pan.
- first a powder blank can be pre-pressed into the pan by means of the above-described first means for pre-pressing loose powder and then moved to a second means for pre-pressing, so that subsequently a second powder blank can be pre-pressed next to the first.
- several of the above-described means for pre-pressing can be placed side by side in such a way that the pre-pressed powder blanks are arranged in their end assembly in the pan and can be compressed in this.
- very thin walls can be used for the above-described compression chambers of the means for pre-pressing.
- At least a part of the walls is at the same time at least part of the walls for two different compression chambers.
- the at least two powder blanks for example, can be pre-pressed parallel to each other in at least two juxtaposed means for pre-pressing.
- the arrangement of the means for pre-pressing also simultaneously gives the final arrangement of the powder blanks in the pan.
- the pan can be driven below the arranged in a particular arrangement means for pre-pressing and after the loose powder was pre-pressed into powder blanks in the at least two means for pre-pressing, these powder blanks can be stored simultaneously in the pan.
- the individual pre-pressed powder blanks are then pressed together to form a powder element.
- the binders can be activated in the powder. By doing so leaves can easily produce a powder element consisting of individual powder blanks of different powders, for example, powders with different colors.
- the powder blanks can be produced with high dosing accuracy and that they have a very homogeneous powder distribution. So there are no places in the powder blanks where there is more powder than at other places, as is often the case in the prior art. This is particularly necessary because otherwise it can not be ensured during compression of the powder blanks that the resulting powder element has a homogeneous distribution and thus would not have sufficient stability.
- FIG. 1 shows a schematic sectional view of an embodiment of a means for pre-pressing 1 of powder blanks of loose powder.
- a compression chamber 2 with a movable in this punch 3 with stamp base 4 a compression chamber 11.
- the volume of the compression chamber 11 is variable depending on the position of the punch 3. Depending on how thick the pressed powder blank should be or which loose powder is used, the stamp can be changed accordingly.
- the compression chamber 11 opens via a valve 10, a supply line 5. Through this supply line 5, the loose powder can be sucked into the compression chamber 11. For this purpose, first a negative pressure in the compression chamber 2 is generated.
- the negative pressure is generated by a, arranged in this embodiment in the upper region of the compression chamber 2 pressure line 6, by means of a connected to the pressure line 6 with the interposition of a valve 9 vacuum source 7. Through a filter in the punch bottom 4 of the punch 3, this negative pressure in the entire compression chamber 2 can spread. If the valve 10 of the supply line 5 is opened, by means of the negative pressure which prevails in the compression chamber 2, the loose powder from a reservoir (not shown here) is sucked via the supply line 5 into the compression space 11. In this case, the stamp base 4 of the stamp 3 forms a defined volume with the walls of the compression chamber 2. This defined volume is used for the exact dosage of loose powder and can be changed depending on the application and desired dosage by the position of the punch bottom 4 in the compression chamber 2.
- a constant negative pressure can be maintained by the vacuum source 7, whereby a first pneumatic pre-pressing of the loose powder happens.
- the holes in the filter are preferably chosen so small, that only a very small amount of loose powder is sucked through the holes. However, this is difficult to achieve for certain very small granular loose powders or powder components.
- a means for filtering in the form of an exchangeable membrane 13 at the mouth of the pressure line 6 is arranged in this embodiment. This membrane 13 takes on the smallest components, which may have come through the holes of the filter during suction.
- the valve 10 of the supply line 5 is closed and the die bottom 4, in this embodiment, down, so that by reducing the volume available for the loose powder in the Compaction space 11 takes place a mechanical pre-pressing of the loose powder.
- a negative pressure is simultaneously exerted by the vacuum source 7, so that at the same time for mechanical pressing the loose powder is also compressed pneumatically.
- a closable opening 12, in this embodiment the bottom of the compression chamber 2 is opened and driven into an open state 12a. In this case, for example, the vacuum source 7 continue to exert a negative pressure to hold the pressed blank on the stamp base 4.
- the overpressure source 8 can subsequently produce, for example, a two-stage overpressure in the compression chamber 2 above the die bottom 4.
- the force exerted by the gas pressure on the pressed blank on the punch bottom 4 of the punch 3 exceeds the adhesion force of the pressed powder on the punch bottom 4 of the punch 3, so the pressed blank from the stamp base 4 of the punch 3 solved.
- the dissolved pressed blank can then be removed in the embodiment shown here through the open bottom 12a of the compression chamber 2 or can fall out of this.
- a first overpressure stage with a minimum overpressure (for example 0.1 bar) can be used to release the pre-pressed powder blank from the stamp base 4 and a second overpressure stage with a higher overpressure (for example 2 to 8 bar) can be used for any powder residues from the filter to remove.
- FIG. 2 shows in a three-dimensional view two of the in FIG. 1
- loose powder by means of negative pressure, generated by the vacuum sources 7a, 7b, in the two compression chambers 11a, 11b via the opening into the compression chambers 11a, 11b supply lines 5a, 5b sucked.
- the two supply lines 5a, 5b each lead to different storage containers (not shown here), so that in each of the two means for pre-pressing 1a, 1b, a powder blank 14, 15 can be pre-pressed from different loose powder.
- the insertable in the compression chambers 11a, 11b punch 3a, 3b are used for mechanical pressing of loose powder.
- the powder blanks 14, 15 can be removed via closable openings 12a, 12c from the compression chambers 11a, 11b.
- the overpressure sources 8a, 8b supportively generate an overpressure in the compression chambers 2a, 2b above the plunger bottoms 4a, 4b, so that the force exerted by the gas pressure facilitates the removal of the powder blanks 14, 15 or the force exerted by the gas pressure becomes so great that the powder blanks 14, 15 can completely detach themselves from the stamp bottoms 4a, 4b and fall out of the open closable openings 12a, 12c.
- the pre-pressing means 1a, 1b shown in this embodiment for example, two semicircular powder blanks 14, 15 can be pre-pressed, which can be arranged so that they form a full circle.
- the arrangement of the powder blanks can also be predetermined by the arrangement of the means for pre-pressing.
- the two means for pre-pressing 1a, 1b of the powder blanks 14, 15 may also be arranged against one another such that the two semicircular means for pre-pressing 1a, 1b form a complete circle form.
- the walls of the compression chambers 2a, 2b be made very thin or a part of the wall of the compression chamber 2a at the same time be at least part of the wall of the compression chamber 2b.
- the juxtaposed means for pre-pressing 1a, 1b can then be parallel two semicircular powder blanks 14, 15 pre-press. If a pan is subsequently moved under the means for prepressing 1a, 1b arranged in this way, then the two semicircular powder blanks 14, 15 can be transferred to the pan in a full circle arrangement. Also, the juxtaposed means for pre-pressing can be used to pre-press two powder blanks in a pan next to each other, so that the powder blanks are equal in a full-circle arrangement in the pan. If the arranged powder blanks 14, 15 are then subsequently pressed together, they result in a fully circular powder element. This is in FIG. 3 shown.
- FIG. 3 shows a schematic view of a powder element consisting of two powder blanks 14, 15 in a pan 16.
- the two powder blanks 14, 15 for example, by the means for pre-pressing 1a, 1b, as in FIG. 2 shown to be produced.
- the powder blanks 14, 15 produced in this way shown here in different shades, can be arranged, for example, side by side in a pan 16 after the pre-pressing, so that the two semicircular powder blanks 14, 15 form a complete circle in the pan 16. If, for example, mechanical pressure is applied to the juxtaposed powder blanks 14, 15, then the two powder blanks can form a fully circular powder element.
- the binder phase in the pre-pressed powder blanks 14, 15 are activated, so that the two juxtaposed powder blanks 14, 15 connect by compression to a fully circular powder element.
- the pan 16 serves at the same time as a limitation of the pre-pressed powder blanks 14, 15, so that they can not move during compression or the pre-pressed powder can go out of shape.
- the pan 16 can also serve as a carrier pan serve for the pressed powder element, so that the powder element together with the pan 16 can be used in a powder box.
- the here by two semicircular powder blanks 14, 15 clarified method for producing a powder element can also be performed with any number of powder blanks of different shapes, so that it is possible through the use of multiple powder blanks to produce a variety of patterns, images, designs or logos in a powder element , An example of the use of several different shaped powder blanks is shown in the following figures.
- FIG. 4 shows various cross-sectional areas 17, 18, 19, 20, 21, 22, 23, 24, 25 for means for pre-pressing 1, 1a, 1b of loose powder as in FIGS. 1 and 2 shown.
- cross-sectional areas 17, 18, 19, 20, 21, 22, 23, 24, 25 shown here it is possible to produce nine differently shaped powder blanks having different outer shapes.
- the individual cross-sectional areas 17, 18, 19, 20, 21, 22, 23, 24, 25 form a pattern, here for example the letter "W".
- the cross-sectional areas 17, 18, 19, 20, 21 and 22 form the outer border of the letter and the cross-sectional areas 23, 24 and 25 form the actual letter.
- a desired powder blank of the mold 19 can be produced by simply rotating a blank of the mold 17, the same applies to the molds 20 and 22 as well as 23 and 25.
- different symmetries can be generated by different patterns of the pattern. so that the number of means required for prepressing 1, 1a, 1b with different cross sections can be minimized.
- these cross-sections of the means for prepressing 1, 1a, 1b should still allow an optimal distribution of the powder in the compression chambers 11, 11a, 11b, without any unfavorable geometries by a homogeneous distribution of loose powder during suction and subsequent pre-pressing is prevented.
- a homogeneous distribution of For example, loose powder can also be assisted by the fact that the means for prepressing 1, 1a, 1b have, for example, a plurality of supply lines, via which the loose powder can be sucked in, so that homogeneous distribution can be ensured even with unfavorable geometries.
- cross-sectional areas shown in this embodiment 17, 18, 19, 20, 21, 22, 23, 24, 25 and the pre-pressed by the means for pre-pressing 1, 1a, 1b powder blanks with corresponding cross-sections, for example, can be used to according to the inventive method To create lettering, patterns, designs or pictures in powder elements. An example of this is in FIG. 5 shown.
- FIG. 5 shows a three-dimensional example of several composite pre-pressed powder blanks with those FIG. 4 known cross-sectional areas 17, 18, 19, 20, 21, 22, 23, 24, 25.
- the pre-pressed blanks of powder with those in FIG. 4 shown cross-sectional areas 17, 18, 19, 20, 21, 22, 23, 24, 25, for example, in a pan 16, as in FIG. 3 shown in a pattern similar to the one in FIG. 5 shown pattern are arranged so that the example shown here pre-pressed powder blanks give the letter "W".
- the inner blanks which give the actual letter have a different colorant phase than the surrounding blanks, so that the resulting pattern or lettering stands out well from the surrounding powder.
- the blanks pre-pressed by the prepressing means 1, 1a, 1b are arranged in the desired pattern, they are pressed together in a final pressing operation, which can be carried out, for example, by a hydraulic, servomechanical or servohydraulically operated punch.
- the binder phase can be activated in the powder, so that the individual blanks are pressed together to a compact powder block the powder element, as this comes for example in powder boxes used.
- a particular advantage of this consisting of powder lettering lies in the fact that the lettering extends through the entire pressed powder element, so this is not placed as in other powders as an accumulation on the pressed powder element or pressed into this, so even if by use the pressed powder element, the thickness of the powder element changes, which are further ensured by the lettering intended advertising purpose.
- this composition also allows the lettering, the pattern, the design in different colors or by different powders with possibly different types of active phases can be formed.
- Another advantage is that the individual powder blanks can be produced individually and in stock. This makes it possible to use the powder blanks like a modular system. This has the advantage that it is not necessary to produce new molds as usual, the use of pre-pressed powder blanks in the production of powder elements thus leads to a time and cost savings over the systems known in the prior art.
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Claims (14)
- Procédé de fabrication d'un élément en poudre comprimé, lequel procédé comprend les étapes suivantes : production d'une dépression à l'aide de laquelle de la poudre en vrac est aspirée d'un réservoir de stockage vers une chambre de compression (2, 2a, 2b) ; dosage de la poudre en vrac pendant l'aspiration par le biais d'un volume réglé dans la chambre de compression (2, 2a, 2b) par la position d'un fond de piston (4, 4a, 4b) d'un piston (3, 3a, 3b) mobile dans la chambre de compression (2, 2a, 2b) ; précompression de la poudre en vrac aspirée en une première ébauche en poudre (14) ; précompression de la poudre en vrac aspirée en une deuxième ébauche en poudre (15) ; et compression desdites au moins deux ébauches en poudre précomprimées (14, 15) pour former un élément en poudre comprimé.
- Procédé selon la revendication 1, dans lequel la précompression de la poudre en vrac aspirée en une première ébauche en poudre (14) comprend la précompression pneumatique de la poudre en vrac aspirée dans une première chambre de compression (2a) au moyen d'une dépression produite, et la précompression de la deuxième ébauche en poudre (15) comprend la précompression pneumatique de la poudre en vrac aspirée dans une deuxième chambre de compression (2b) au moyen d'une dépression produite.
- Procédé selon la revendication 1, dans lequel la précompression de la poudre en vrac aspirée en une première ébauche en poudre (14) comprend la précompression mécanique de la poudre en vrac aspirée dans une première chambre de compression (2a) à l'aide d'un piston (3a) mobile dans la première chambre de compression (2a), et la précompression de la deuxième ébauche en poudre (15) comprend la précompression mécanique de la poudre en vrac aspirée dans une deuxième chambre de compression (2b) à l'aide d'un piston (3b) mobile dans la deuxième chambre de compression (2b).
- Procédé selon la revendication 1, dans lequel la précompression de la poudre en vrac aspirée en une première ébauche en poudre (14) comprend la précompression pneumatique de la poudre en vrac aspirée dans une première chambre de compression (2a) au moyen d'une dépression produite, et la précompression de la deuxième ébauche en poudre (15) comprend la précompression pneumatique de la poudre en vrac aspirée dans la première chambre de compression (2a) au moyen d'une dépression produite après que la première ébauche en poudre (14) a été précomprimée.
- Procédé selon la revendication 1, dans lequel la précompression de la poudre en vrac aspirée en une première ébauche en poudre (14) comprend la précompression mécanique de la poudre en vrac aspirée dans une première chambre de compression (2a) à l'aide d'un piston (3a) mobile dans la première chambre de compression (2a), et la précompression de la deuxième ébauche en poudre (15) comprend la précompression mécanique de la poudre en vrac aspirée dans la première chambre de compression (2a) à l'aide d'un piston (3a) mobile dans la première chambre de compression (2a) après que la première ébauche en poudre (14) a été précomprimée.
- Procédé selon une des revendications 1 à 5, dans lequel la pression exercée lors de la précompression des ébauches en poudre (14, 15) est inférieure à la pression qui active la phase liante dans la poudre en vrac.
- Procédé selon une des revendications 1 à 6, dans lequel lesdites au moins deux ébauches en poudre (14, 15) sont précomprimées à partir de poudres en vrac différentes.
- Procédé selon une des revendications 1 à 7, dans lequel la mise en forme desdites au moins deux ébauches en poudre (14, 15) est conçue de façon que l'élément en poudre ait une forme définie après la compression desdites au moins deux ébauches en poudre (14, 15).
- Procédé selon une des revendications 1 à 8, dans lequel, lors de la compression desdites au moins deux ébauches en poudre (14, 15), une pression est exercée sur les ébauches en poudre précomprimées (14, 15), laquelle pression est choisie suffisamment élevée pour pouvoir activer la phase liante dans lesdites au moins deux ébauches en poudre précomprimées (14, 15).
- Procédé selon une des revendications 1 à 9, dans lequel la compression desdites au moins deux ébauches en poudre (14, 15) comprend la compression desdites au moins deux ébauches en poudre (14, 15) dans une poche (16).
- Procédé selon une des revendications 1 à 10, dans lequel la compression desdites au moins deux ébauches en poudre (14, 15) comprend l'exercice d'une pression par voie mécanique à l'aide de piston (3, 3a, 3b) sur lesdites au moins deux ébauches en poudre (14, 15).
- Dispositif de fabrication d'un élément en poudre comprimé, lequel dispositif comprend : au moins une chambre de compression (2, 2a, 2b) pour précomprimer de la poudre en vrac en une première ébauche en poudre (14) et pour précomprimer de la poudre en vrac en une deuxième ébauche en poudre (15) avec un piston (3, 3a, 3b) qui est mobile dans ladite au moins une chambre de compression (2, 2a, 2b) et qui présente un fond de piston (4, 4a, 4b), lequel fond de piston (4, 4a, 4b) ferme ladite au moins une chambre de compression (2, 2a, 2b) par des parois et forme ainsi un espace de compression (11, 11a, 11b) ; un moyen pour comprimer lesdites au moins deux ébauches en poudre précomprimées (14, 15) pour former un élément en poudre comprimé, caractérisé en ce que le dispositif comprend, pour la poudre en vrac, au moins une conduite d'amenée (5) avec une vanne (10) ; l'espace de compression (11, 11a, 11b) présente une liaison avec une conduite de pression (6, 6a, 6b) pour produire une dépression à l'aide de laquelle de la poudre en vrac peut être aspirée d'un réservoir de stockage vers l'espace de compression (11, 11a, 11b) à travers la conduite d'amenée (5) ; le volume de l'espace de compression (11, 11a, 11b) est réglable par la position du fond de piston (4, 4a, 4b) dans la chambre de compression (2, 2a, 2b) pour doser la poudre en vrac aspirée ; et ladite au moins une chambre de compression (2, 2a, 2b) présente une ouverture fermable (12, 12a, 12c) pour le prélèvement de l'ébauche en poudre précomprimée (14, 15).
- Dispositif selon la revendication 12, lequel dispositif comprend au moins deux chambres de compression (2a, 2b) conformées de manière analogue, une pour précomprimer la première ébauche en poudre (14) et une pour précomprimer la deuxième ébauche en poudre (15).
- Dispositif selon la revendications 12, lequel dispositif comprend une chambre de compression (2), et lesdites au moins deux ébauches en poudre (14, 15) sont précomprimées l'une après l'autre dans ladite une chambre de compression (2).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09167149.5T ES2468316T3 (es) | 2009-08-04 | 2009-08-04 | Procedimiento para la producción de un elemento en polvos prensado y un dispositivo correspondiente |
PL09167149T PL2281683T3 (pl) | 2009-08-04 | 2009-08-04 | Sposób wytwarzania sprasowanego elementu pudrowego i odpowiednie urządzenie |
EP09167149.5A EP2281683B1 (fr) | 2009-08-04 | 2009-08-04 | Procédé de production d'un élément de poudre comprimé et dispositif correspondant |
US12/850,984 US8636933B2 (en) | 2009-08-04 | 2010-08-05 | Pressed powder elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09167149.5A EP2281683B1 (fr) | 2009-08-04 | 2009-08-04 | Procédé de production d'un élément de poudre comprimé et dispositif correspondant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2281683A1 EP2281683A1 (fr) | 2011-02-09 |
EP2281683B1 true EP2281683B1 (fr) | 2014-03-05 |
Family
ID=41511044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09167149.5A Not-in-force EP2281683B1 (fr) | 2009-08-04 | 2009-08-04 | Procédé de production d'un élément de poudre comprimé et dispositif correspondant |
Country Status (4)
Country | Link |
---|---|
US (1) | US8636933B2 (fr) |
EP (1) | EP2281683B1 (fr) |
ES (1) | ES2468316T3 (fr) |
PL (1) | PL2281683T3 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3165357B1 (fr) | 2015-11-06 | 2020-01-01 | Hao Ying Machine Enterprise Co., Ltd. | Machine de formation d'élément en poudre comprimée |
CN106671471A (zh) * | 2015-11-10 | 2017-05-17 | 濠滢机械企业有限公司 | 粉饼成型机 |
ES2714366T3 (es) * | 2015-12-21 | 2019-05-28 | Fydec Holding Sa | Dispositivo de dosificación de cantidades mínimas, en particular para aplicaciones farmacéuticas, así como el proceso de dosificación de cantidades mínimas de polvo |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1284612B (de) | 1963-04-05 | 1968-12-05 | Kilian & Co Gmbh | Fuellschuh fuer eine Tablettenpresse |
DE2848505A1 (de) * | 1978-11-08 | 1980-05-29 | Franz Hoffmann & Soehne Kg Che | Vorrichtung zum abfuellen von hochvoluminoesen pulverfoermigen stoffen in staubdichte behaelter |
DE3514512C1 (de) * | 1985-04-22 | 1986-06-05 | Franz Hoffmann & Söhne KG Chemische Fabrik, 8858 Neuburg | Vorrichtung zum Verdichten und Verpacken pulverfoermiger,lufthaltiger Stoffe |
JPS62109903A (ja) * | 1985-11-06 | 1987-05-21 | Kobe Steel Ltd | 粉末のプレス充填法 |
JPH0747527B2 (ja) * | 1985-11-13 | 1995-05-24 | 株式会社資生堂 | 模様入り固型粉末化粧料の製造方法 |
JPH072622B2 (ja) * | 1986-01-17 | 1995-01-18 | 株式会社吉野工業所 | 複数色ケ−キ状化粧料充填皿およびその製造方法 |
JPS62215515A (ja) * | 1986-03-17 | 1987-09-22 | Kanebo Ltd | 受皿入り多色固形化粧料の製造方法 |
JPS63203300A (ja) * | 1987-02-20 | 1988-08-23 | Hata Tekkosho:Kk | 複合粉末成形品の圧縮成形方法 |
FR2615987B1 (fr) | 1987-05-27 | 1994-04-01 | Axytel | Dispositif de controle de l'integrite d'une paroi quelconque, metallique ou non, destine a declencher automatiquement une intervention en cas d'agression commise a l'encontre de cette paroi |
IT1222069B (it) * | 1987-07-20 | 1990-08-31 | Dosa Pack Srl | Procedimento ed apparecchio per la produzione di confezioni di prodotti cosmetici con polveri di caratteristiche diverse |
US20060185671A1 (en) * | 2005-02-17 | 2006-08-24 | Durr Systems, Inc. | Powder conveying pump |
FR2919799B1 (fr) | 2007-08-10 | 2020-02-14 | Lvmh Recherche | Produit sous forme de poudre compacte comprenant un message visible pour l'utilisateur |
-
2009
- 2009-08-04 EP EP09167149.5A patent/EP2281683B1/fr not_active Not-in-force
- 2009-08-04 ES ES09167149.5T patent/ES2468316T3/es active Active
- 2009-08-04 PL PL09167149T patent/PL2281683T3/pl unknown
-
2010
- 2010-08-05 US US12/850,984 patent/US8636933B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8636933B2 (en) | 2014-01-28 |
EP2281683A1 (fr) | 2011-02-09 |
ES2468316T3 (es) | 2014-06-16 |
PL2281683T3 (pl) | 2014-08-29 |
US20110031642A1 (en) | 2011-02-10 |
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