EP2929994A1 - Système de pressage de poudres céramiques entre une plaque et des rouleaux - Google Patents

Système de pressage de poudres céramiques entre une plaque et des rouleaux Download PDF

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Publication number
EP2929994A1
EP2929994A1 EP15162494.7A EP15162494A EP2929994A1 EP 2929994 A1 EP2929994 A1 EP 2929994A1 EP 15162494 A EP15162494 A EP 15162494A EP 2929994 A1 EP2929994 A1 EP 2929994A1
Authority
EP
European Patent Office
Prior art keywords
plate
belt
rollers
pressing
powders
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.)
Withdrawn
Application number
EP15162494.7A
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German (de)
English (en)
Inventor
Paola Ferrari
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2929994A1 publication Critical patent/EP2929994A1/fr
Withdrawn legal-status Critical Current

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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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/12—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material
    • B28B3/123—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material on material in moulds or on moulding surfaces moving continuously underneath or between the rollers, e.g. on an endless belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band

Definitions

  • the present invention relates to a system for pressing ceramic powders on a belt interposed between a flat sliding plate and a set of pressing rollers.
  • the pressing basically occurs as a lamination process, where a layer of material is forced into the passage between two rollers, where the passage light is thinner than the input thickness.
  • Such processing may result in irregularities (typically waviness) on pressed surfaces which may constitute serious cosmetic defects for ceramic products (namely, wall and floor tiles) with consequent deterioration in the quality of products, especially large format products, which are the most demanded on the market at present.
  • the technical task at the base of the present invention is to provide a pressing system with rollers mounted on a belt so as to avoid any surface irregularities regardless the format to be produced and the thickness of the layer to be compacted.
  • Figure 1A shows the entire apparatus where the contours (G1) and (G2) define the two main units also shown individually in the set of Figures 4 and 5 .
  • numbers below 50 were assigned to the components referred to with (G1), whereas numbers above 50 were allotted to the ones referred to with (G2).
  • This apparatus section has the main function to convey the powders from the discharge hopper to the forming zone and comprises the following:
  • the unit (G2) includes the various pressing devices inserted in a separate structure from the previous one which is part of the unit (G1), see primarily Figure 1A, Figure 1B, Figure 1C , Figure 2A and Figure 5B , and in particular:
  • FIG 3B a second constructive solution of the plate unit is shown, comprising a belt (70) which in this case forms a closed ring held in position by the rollers (71), one (or more) of which is motorised; this solution is the obvious alternative to the one referred to in Figure 3A taken as a reference in the description of the patent herein; both Figures 3B and 3A illustrate components maintaining same features and operational functions.
  • Figure 5A shows both units (G1) and (G2) as assembled within the apparatus in a simplified top view; to better distinguish the two units, (G1) is illustrated with dotted lighter lines.
  • Figure 6A A-CYCLE START
  • Figure 6B B- PRESSING PHASE
  • Figure 6C C-RESET TO INITIAL POSITION
  • Figure 6A shows the apparatus in the early stage of a cycle with production already started; in this phase the various devices appear as follows:
  • the pressing phase can start as follows:
  • the two-way forward modes of the plate unit shown in the figures occur due to frictional rolling contact between the roller (52) and the plate itself, although forward mode systems based on typical mechanical couplings such as pinions, racks, chains etc. are also possible.
  • the belt (57) has therefore the sole function of preventing the lower part of the plate from getting dirty which inevitably would go to detriment of the regularity of the surface of the layer pressed which is an essential aspect of the invention herein.
  • the belt (57) could also exhibit proper cuts so as to reproduce by way of example imitation of natural unadjusted marbles and the like.
EP15162494.7A 2014-04-07 2015-04-02 Système de pressage de poudres céramiques entre une plaque et des rouleaux Withdrawn EP2929994A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMO20140093 2014-04-07

Publications (1)

Publication Number Publication Date
EP2929994A1 true EP2929994A1 (fr) 2015-10-14

Family

ID=50981776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15162494.7A Withdrawn EP2929994A1 (fr) 2014-04-07 2015-04-02 Système de pressage de poudres céramiques entre une plaque et des rouleaux

Country Status (3)

Country Link
EP (1) EP2929994A1 (fr)
MA (1) MA39269A (fr)
WO (1) WO2015155652A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018059012A1 (fr) * 2016-09-27 2018-04-05 广东科达机电股份有限公司 Presse à briques en céramique à formation continue et son procédé de production

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109249531B (zh) * 2018-10-14 2020-06-16 温州澳鼎建材有限公司 一种用于特种陶瓷生产的埋粉机
CN113634312A (zh) * 2021-08-18 2021-11-12 科达制造股份有限公司 一种陶瓷辊压设备
CN116872328B (zh) * 2023-09-07 2024-03-12 苏州美尔邦纳米材料有限公司 一种保温杯预成型加工装置及用于陶瓷保温杯的加工方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795470A (en) * 1971-07-14 1974-03-05 Mets Nv Konstruktienerkhuizen Press for continuously producing chip board, fiber board or the like
US4083912A (en) * 1971-08-03 1978-04-11 Wasagchemie Gmbh Process for the compression of black powder
DE2928530A1 (de) * 1979-07-14 1981-01-22 Siempelkamp Gmbh & Co Kontinuierlich arbeitende anlage fuer das pressen von pressgut im zuge der herstellung von spanplatten, faserplatten u.dgl.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795470A (en) * 1971-07-14 1974-03-05 Mets Nv Konstruktienerkhuizen Press for continuously producing chip board, fiber board or the like
US4083912A (en) * 1971-08-03 1978-04-11 Wasagchemie Gmbh Process for the compression of black powder
DE2928530A1 (de) * 1979-07-14 1981-01-22 Siempelkamp Gmbh & Co Kontinuierlich arbeitende anlage fuer das pressen von pressgut im zuge der herstellung von spanplatten, faserplatten u.dgl.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018059012A1 (fr) * 2016-09-27 2018-04-05 广东科达机电股份有限公司 Presse à briques en céramique à formation continue et son procédé de production

Also Published As

Publication number Publication date
WO2015155652A1 (fr) 2015-10-15
MA39269A (fr) 2015-10-14

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