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WO2008038105A1 - Presse - Google Patents

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Publication number
WO2008038105A1
WO2008038105A1 PCT/IB2007/002792 IB2007002792W WO2008038105A1 WO 2008038105 A1 WO2008038105 A1 WO 2008038105A1 IB 2007002792 W IB2007002792 W IB 2007002792W WO 2008038105 A1 WO2008038105 A1 WO 2008038105A1
Authority
WO
WIPO (PCT)
Prior art keywords
press
emitting
ceramic material
light
parameter
Prior art date
Application number
PCT/IB2007/002792
Other languages
English (en)
Inventor
Marco Salieri
Original Assignee
Sacmi Cooperativa Meccanici Imola Societa' Cooperativa
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 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa filed Critical Sacmi Cooperativa Meccanici Imola Societa' Cooperativa
Priority to EP07825179A priority Critical patent/EP2081757A1/fr
Publication of WO2008038105A1 publication Critical patent/WO2008038105A1/fr

Links

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
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/0063—Control arrangements
    • B28B17/0081—Process control
    • 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
    • B30B11/005—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof

Definitions

  • the invention relates to a press for pressing ceramic material .
  • presses are known that are provided with a bed and with a movable crosspiece.
  • the presses comprise a driving device, provided with a hydraulic cylinder, that drives the movable crosspiece towards and away from the bed.
  • a driving device provided with a hydraulic cylinder, that drives the movable crosspiece towards and away from the bed.
  • To the movable crosspiece at least an upper punch is fixed that cooperates with a corresponding at least a mould cavity associated with the bed.
  • the at least a mould cavity is bounded at the bottom by a lower punch that is movable with respect to a frame of the at least a mould cavity for evacuating a ceramic tile that has been formed.
  • the presses disclosed above further comprise a supplying device for supplying the ceramic material provided with a carriage that is movable between a retracted loading position, in which the carriage receives the ceramic material, and an advanced delivery position, in which the carriage deposits the ceramic material inside the at least a mould cavity.
  • The.. presses disclosed above comprise a ...display on .which information is displayed relating to. operating;parameters of., the presses.
  • production lines are provided each of which comprises one of the aforesaid presses, downstream of which a drying device is provided that dries the formed tiles.
  • the aforesaid production lines further comprise, downstream of the drying devices, operating devices, in particular decorating devices that deposit decorating products on the formed and dried tiles .
  • the same operator is in charge of monitoring a plurality of presses - installed on adjacent production lines - and the respective drying devices .
  • An operator may not therefore notice a press fault until he approaches the display associated with the press. This entails a delay in the elimination of the aforesaid fault. This delay is unacceptable, as the situation that generated the aforesaid fault, when it is not promptly solved, may lead to the breakage of parts of the press, or of other parts of the production line.
  • the aforesaid fault even if it does not cause damage to the apparatuses, may mean that the tiles produced are not appropriately pressed - i.e. that they are faulty - such tiles having to be subsequently rejected, which entails a noticeable reduction...in... efficiency.
  • the displays are very different " -from ' "the. 'aforesaid decorating devices. As a result, the operators in charge of the decorating devices are not familiar with the information relating to the operation of the presses .
  • An object of the invention is to improve the presses for pressing ceramic material.
  • Another object is to enable an operator in charge of controlling a press for pressing ceramic material to be substantially constantly informed of the operating status of the press .
  • a further object of the invention is to enable an operator in charge of controlling a press for pressing ceramic material to detect in as short a time as possible a possible fault in the press and to intervene promptly to remedy such a fault .
  • a method comprising providing information on an operating parameter of a press for pressing ceramic material during a pressing cycle, said providing comprising generating an indication visible from a zone that is remote with respect
  • an operator in charge of a press for pressing ceramic material can be informed of the operating status of the press even when he is far from the press.
  • the operator can keep
  • Figure 1 is a frontal view of • a press provided with indicating means
  • FIG. 2 is a side view of the press in Figure 1.
  • a press 1 is shown for pressing ceramic material, comprising a supporting structure
  • the bed 3 can be obtained directly in a lower portion of the supporting structure 2.
  • the press 1 further comprises a movable crosspiece 4 that is slidable with respect to the supporting structure 2 towards
  • the press 1 comprises a driving device provided with a hydraulic cylinder arranged for moving the movable crosspiece 4. With the bed 3 an extraction device is associable on which
  • first half mould that defines at least a mould cavity arranged for receiving the ceramic material .
  • the at least a mould cavity is peripherally bounded by a frame and bounded below by a lower punch driven by the
  • a second half mould is fixable that is provided with an upper punch arranged for being received in the at least a mould cavity for pressing the ceramic material .
  • a supplying device which is not shown, comprising a carriage that is movable between a retracted loading configuration, in which the carriage receives the ceramic material, and an advanced delivery configuration, in which the carriage deposits the
  • the aforesaid ceramic material can be a ceramic material in powder form or a semifinished product obtained by pressing a ceramic material in powder form at low pressure.
  • the aforesaid semifinished product can be obtained by compacting the ceramic material in powder form by means of compacting rollers and/or compacting belts arranged upstream of the press 1.
  • upper forming moulds can be provided, in which the ceramic products are formed in the upper part of the mould, i.e. in the part fixed to the movable crosspiece 4.
  • the press 1 further comprises indicating means 5 arranged for providing information relative to an operating parameter of the press 1 during a pressing cycle.
  • This parameter may be indicative of a pressure value of an operating fluid contained in the aforesaid hydraulic cylinder.
  • this parameter may be indicative of a position assumed by the movable crosspiece 4 whilst the movable crosspiece 4 moves towards or away from the bed 3.
  • this parameter may be indicative of a position assumed by the aforesaid carriage whilst the carriage travels along a path defined between said retracted removal .configuration . and : said ⁇ Vietnamese ⁇ dvanced .. loading configuration 1 .
  • this parameter may be indicative of a position assumed by the aforesaid lower punch whilst the lower punch, driven by the extraction device associated with the bed, travels along a path defined between a lowered configuration, in which the lower punch bounds below the at least a mould cavity, and a raised configuration, in which the lower punch expels a formed tile from the at least a mould cavity.
  • the indicating means is shaped in such a way as to generate a verbal signal, i.e. a word, that informs an operator about the operating status of the press 1.
  • the indicating means is shaped in such a way as to generate a graphic signal, i.e. a symbol, that informs an operator about the operating status of the press 1.
  • the indicating means may comprise light diodes.
  • the indicating means comprises light-emitting means arranged for generating a light signal.
  • the light-emitting means can be LEDs, for example LEDs of the RGB type, which are able to produce any combination of colours .
  • the press 1 comprises a command and control unit that continuously detects the aforesaid parameter. At each instant of an operating cycle of the press 1, the command and control unit generates an analog electric signal, having an intensity that is proportional to a value of the aforesaid parameter, and transmits the analog electric signal to an indicating means 5. In this way, the light signal emitted by the emitting means has, instant by instant, an intensity proportional to the value of the aforesaid parameter. This enables an 'operator to receive constantly an .indication of the operating status of the press 1.
  • the indicating means 5 is positioned in a top portion 6 of the supporting structure 2, for example in a portion of the supporting structure 2 above the movable crosspiece 4. In this way, the indicating means 5 is easily visible from a zone that is remote with respect to the press 1. An operator in charge of the control of the press 1 is thus able to receive the signal coming from the indicating means 5 even if it is far from the press 1, for example to supervise a further press, installed on a production line next to the one on which the press 1 is installed, or to control a drying device.
  • the indicating means 5 comprises an indicating body 7 having a substantially
  • the indicating body 7 has a convex shape in such a way as to project beyond a wall 8 of the supporting structure 2. The indicating body 7 is therefore easily visible not only to an operator who is in a zone arranged opposite the press 1, but
  • the indicating means 5 is shaped in such a way as to emit a green light, with an intensity that is proportionally variable to the pressure of the operating
  • the command and control unit generates, in addition to the analog electric signal that defines the .intensity of the green light, a digital .electric
  • the ceramic material may comprise a ceramic material in powder form, or a semifinished product obtained by compacting a ceramic material in powder form upstream of the press 1.
  • the movable crosspiece 4 moves away from the bed 3 to enable the ceramic material to be evacuated that was subjected to a preliminary pressing by air initially present between the particles of the aforesaid ceramic material.
  • the movable crosspiece 4 moves away from the bed 3 to enable the ceramic material to be deaerated.
  • the movable crosspiece 4 moves again towards the bed 3 to perform high-pressure pressing, i.e. compacting of the ceramic material to obtain a ceramic tile. Still subsequently, the movable crosspiece 4 again moves away from the bed 3 to enable a formed tile to be evacuated from at least a mould cavity.
  • the indicating means 5 emits a light signal having an intensity proportional to the value of the pressure of the operating fluid in the hydraulic cylinder and an indicative colour of one of the aforesaid steps of the operating cycle, i.e. a first colour for the preliminary pressing step, a second colour for the deaeration step, a third colour for the compacting step and a fourth colour for the expanding step of the tile.
  • press 1 operating cycles can be provided comprising a different number of operating steps.
  • the indicating means can emit a light signal having an intensity proportional to the value of the pressure of the operating fluid in the hydraulic cylinder - or of another operating parameter - and a colour indicating one of the steps of the operating cycle.
  • the verbal signals, the graphic signals and the light signals, or combinations of such signals can be selected in such a way as to encode a plurality of information that is easily comprehensible for an operator, once the operator has been instructed in the encoding methods .
  • the information corresponding to each of the signals emitted by the indicating means 5, whether they be verbal, graphic, luminous or a combination of two or more of the previous ones, can also be communicated to operators in charge of devices arranged downstream of the press, in particular to operators in charge of decorating, for decorating tiles obtained by pressing the ceramic material.
  • the operators in charge of decorating devices are at each instant informed of the operating status of the press and can undertake suitable actions on the devices assigned to them both in the event of correct operation of the press 1 and in the event of faults or arrests of the latter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

L'invention se rapporte à une presse conçue pour façonner une matière céramique, comprenant un moyen d'indication (5) servant à fournir des indications sur un paramètre de fonctionnement de ladite presse (1) pendant un cycle de pressage, ce moyen d'indication (5) étant disposé de manière à être visible d'une zone qui est éloignée de la presse (1). Cette invention concerne en outre un procédé consistant, entre autres, à fournir des informations sur un paramètre de fonctionnement d'une presse (1) pour façonner une matière céramique pendant un cycle de pressage, cette étape impliquant la génération d'une indication visible d'une zone qui est éloignée de ladite presse (1).
PCT/IB2007/002792 2006-09-27 2007-09-26 Presse WO2008038105A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07825179A EP2081757A1 (fr) 2006-09-27 2007-09-26 Presse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO2006A000303 2006-09-27
ITMO20060303 ITMO20060303A1 (it) 2006-09-27 2006-09-27 Pressa

Publications (1)

Publication Number Publication Date
WO2008038105A1 true WO2008038105A1 (fr) 2008-04-03

Family

ID=38962920

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/002792 WO2008038105A1 (fr) 2006-09-27 2007-09-26 Presse

Country Status (4)

Country Link
EP (1) EP2081757A1 (fr)
CN (1) CN101541523A (fr)
IT (1) ITMO20060303A1 (fr)
WO (1) WO2008038105A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3604075A (en) * 1969-01-27 1971-09-14 Stearns Mfg Co Density control system for block-making apparatus
US3889503A (en) * 1974-07-01 1975-06-17 Verson Allsteel Press Co Safety indicator system and method for metal forming machines
US4446787A (en) * 1982-06-21 1984-05-08 Kabushiki Kaisha Komatsu Seisakusho Preparative monitoring apparatus for operation of a press
JPH0330910A (ja) * 1989-06-28 1991-02-08 Goto Tekkosho:Kk 粉末成形タイルプレスにおけるタイル成形厚みの表示装置及び表示方法
JPH0810998A (ja) * 1994-06-29 1996-01-16 Aida Eng Ltd プレス機械の視聴覚による警告装置
DE19511324A1 (de) * 1995-03-28 1996-10-10 Masa Ag Verfahren und Vorrichtung zur Qualitätsprüfung während der Herstellung von Betonsteinen
US5813323A (en) * 1997-09-08 1998-09-29 Nowak; Esther C. Multiple-bin waste compactor
WO2000023263A1 (fr) * 1998-10-16 2000-04-27 Compact Waste Systems Inc. Compacteur de dechets menagers
JP2006205172A (ja) * 2005-01-25 2006-08-10 Amada Co Ltd 曲げ加工装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3913468A1 (de) 1989-04-24 1990-10-25 Zott Kg Kunststoffbehaelter, insbesondere becher
FR2677915B3 (fr) 1991-06-21 1993-10-01 Monoplast Procede de fabrication de recipients en matieres plastiques et recipients obtenus selon ce procede.
FR2700493A1 (fr) 1993-01-21 1994-07-22 Burger Daniel Procédé de fabrication d'un bac en matière plastique en multi-empreintes.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3604075A (en) * 1969-01-27 1971-09-14 Stearns Mfg Co Density control system for block-making apparatus
US3889503A (en) * 1974-07-01 1975-06-17 Verson Allsteel Press Co Safety indicator system and method for metal forming machines
US4446787A (en) * 1982-06-21 1984-05-08 Kabushiki Kaisha Komatsu Seisakusho Preparative monitoring apparatus for operation of a press
JPH0330910A (ja) * 1989-06-28 1991-02-08 Goto Tekkosho:Kk 粉末成形タイルプレスにおけるタイル成形厚みの表示装置及び表示方法
JPH0810998A (ja) * 1994-06-29 1996-01-16 Aida Eng Ltd プレス機械の視聴覚による警告装置
DE19511324A1 (de) * 1995-03-28 1996-10-10 Masa Ag Verfahren und Vorrichtung zur Qualitätsprüfung während der Herstellung von Betonsteinen
US5813323A (en) * 1997-09-08 1998-09-29 Nowak; Esther C. Multiple-bin waste compactor
WO2000023263A1 (fr) * 1998-10-16 2000-04-27 Compact Waste Systems Inc. Compacteur de dechets menagers
JP2006205172A (ja) * 2005-01-25 2006-08-10 Amada Co Ltd 曲げ加工装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2081757A1 *

Also Published As

Publication number Publication date
CN101541523A (zh) 2009-09-23
ITMO20060303A1 (it) 2008-03-28
EP2081757A1 (fr) 2009-07-29

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