EP0519373B1 - Device for loading powder in molds of ceramic presses - Google Patents
Device for loading powder in molds of ceramic presses Download PDFInfo
- Publication number
- EP0519373B1 EP0519373B1 EP92110054A EP92110054A EP0519373B1 EP 0519373 B1 EP0519373 B1 EP 0519373B1 EP 92110054 A EP92110054 A EP 92110054A EP 92110054 A EP92110054 A EP 92110054A EP 0519373 B1 EP0519373 B1 EP 0519373B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slider
- hopper
- powder
- molds
- discharge outlet
- 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.)
- Expired - Lifetime
Links
- 239000000843 powder Substances 0.000 title claims description 24
- 239000000919 ceramic Substances 0.000 title claims description 6
- 239000011159 matrix material Substances 0.000 description 5
- 230000008021 deposition Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- 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
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
Definitions
- the present invention relates to a device for loading powder in molds of ceramic presses.
- a device having the features set forth in the preamble of claim 1 is known from the prior document DE-A-3332969.
- the technical aim of the present invention is therefore to provide a device which allows to load the molds of ceramic presses without the above described problems.
- the reference numeral 1 designates a generic press for manufacturing ceramic tiles.
- the press comprises, in a manner which is known and therefore not described in detail, a base 2 from which vertical guiding posts 3 for an upper cross-member 4 rise; said cross-member 4 supports the pressing punches 5.
- the forming mold is arranged on the base 2 and is composed of an annular matrix die 6 which surrounds the counterpunches 7. Said counterpunches 7 are moveable between a raised level, at which they are co-planar with the upper face of the matrix die, and a lowered level, in which they define, together with the matrix die, the chambers 8 into which the powder to be pressed must be introduced.
- the powder is transferred into the chambers 8 by a slider 9 which is associated with the loading device, generally designated by the reference numeral 10, and is slideable on a surface 11 which is coplanar with the matrix die 6.
- the loading device comprises a carriage 12 which supports a hopper 13 having a lower discharge outlet 14 controlled by a valve 15.
- a secondary hopper 16 leads, in an upward position, into the hopper 13, is rigidly associated with said hopper and is capable of keeping a constant level of powder inside said hopper 13.
- the secondary hopper 16 is, in any case, not indispensable for the correct functionality of the device.
- the valve 15 comprises a shutter 18 which is articulated to the hopper about an axis 19 and is actuated by means of an actuator 20 which is constituted by a cylinder whose jacket is articulated to the hopper 13 and whose stem is articulately coupled to the shutter 18.
- the carriage 12 which supports the hopper slides on rails 22 by means of wheels 21 and is actuated between the two positions shown in the figure in solid lines and in broken lines by means of an actuator, not shown, with the possibility of assuming variable speeds between said two positions.
- the shutter 18 is actuated again in the position for closing the outlet 14, so that when the cross-member 4 of the press has risen, the slider 9 can be transferred above the matrix die in order to deposit the subsequent dose of powder in the chamber 8. Meanwhile, the device 10 has returned to its initial position, close to the press, ready to resume the cycle in the above described manner. It is also possible to provide that the loading of the slider 9, when it is over the surface 11, occurs once during the forward stroke of the device 10 and once during its return stroke.
- the carriage 12 is moved at a variable speed in order to ensure a different distribution of the powder in the slider.
- the above described invention allows to obtain substantial advantages by virtue of the fact that the slider is loaded during the pressing step and thus in a period of time which is long enough to ensure perfect control of the distribution of the powder which is contained in the slider 9 and is then discharged into the forming chamber 8.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO910218 | 1991-06-20 | ||
ITBO910218A IT1248243B (it) | 1991-06-20 | 1991-06-20 | Dispositivo per il caricamento con polvere degli stampi in presse ceramiche. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0519373A1 EP0519373A1 (en) | 1992-12-23 |
EP0519373B1 true EP0519373B1 (en) | 1996-04-03 |
Family
ID=11337598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92110054A Expired - Lifetime EP0519373B1 (en) | 1991-06-20 | 1992-06-15 | Device for loading powder in molds of ceramic presses |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0519373B1 (it) |
DE (1) | DE69209567T2 (it) |
ES (1) | ES2086582T3 (it) |
IT (1) | IT1248243B (it) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6800229B2 (en) | 2001-05-08 | 2004-10-05 | Sacmi-Cooperativa Meccanici Imola-Soc. Coop. A R.L. | Method for forming large-dimension ceramic tiles |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1295612B1 (it) * | 1997-10-10 | 1999-05-14 | Gruppo Tecnoferrari Spa | Appaprecchiatura per l'alimentazione di polveri ad una pressa formatrice,in particolare di piastrelle ceramiche. |
CN1211191C (zh) * | 2001-09-07 | 2005-07-20 | 黄国权 | 陶瓷砖复式布料设备和布料方法及生产的产品 |
CN105252639B (zh) * | 2015-11-27 | 2018-09-11 | 简军 | 一种自动布料设备 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE532497C (de) * | 1930-04-25 | 1931-08-28 | Th Groke Akt Ges | Pendelverschluss an sich selbsttaetig oeffnenden und schliessenden Fuellvorrichtungen fuer mechanisch oder hydraulisch betriebene Steinpressen |
GB588856A (en) * | 1945-02-10 | 1947-06-04 | Whittaker & Company Ltd C | Improvements in or relating to semi-plastic brick making machines |
US2957222A (en) * | 1954-11-23 | 1960-10-25 | Zmania Leo | Apparatus for producing concrete blocks and the like |
US3041701A (en) * | 1959-03-04 | 1962-07-03 | Gates Major Earl | Brick press |
DE1784711C3 (de) * | 1968-09-10 | 1975-06-05 | Dolomitwerke Gmbh, 5603 Wuelfrath | FüllgefäB zur gravimetrischen Beschickung von Preßformen |
DE3332969A1 (de) * | 1983-09-13 | 1985-03-28 | Laeis-Werke Ag, 5500 Trier | Verfahren und vorrichtung zum befuellen eines hin- und herbeweglichen fuellschiebers einer formpresse mit pressmasse |
FR2636658A1 (fr) * | 1988-09-16 | 1990-03-23 | Demler Sa Ets | Machine pour le moulage de produits en beton |
-
1991
- 1991-06-20 IT ITBO910218A patent/IT1248243B/it active IP Right Grant
-
1992
- 1992-06-15 DE DE69209567T patent/DE69209567T2/de not_active Expired - Lifetime
- 1992-06-15 ES ES92110054T patent/ES2086582T3/es not_active Expired - Lifetime
- 1992-06-15 EP EP92110054A patent/EP0519373B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6800229B2 (en) | 2001-05-08 | 2004-10-05 | Sacmi-Cooperativa Meccanici Imola-Soc. Coop. A R.L. | Method for forming large-dimension ceramic tiles |
Also Published As
Publication number | Publication date |
---|---|
DE69209567D1 (de) | 1996-05-09 |
ES2086582T3 (es) | 1996-07-01 |
ITBO910218A1 (it) | 1992-12-20 |
DE69209567T2 (de) | 1996-09-19 |
IT1248243B (it) | 1995-01-05 |
EP0519373A1 (en) | 1992-12-23 |
ITBO910218A0 (it) | 1991-06-20 |
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