EP1707330A2 - Compression device - Google Patents
Compression device Download PDFInfo
- Publication number
- EP1707330A2 EP1707330A2 EP06006332A EP06006332A EP1707330A2 EP 1707330 A2 EP1707330 A2 EP 1707330A2 EP 06006332 A EP06006332 A EP 06006332A EP 06006332 A EP06006332 A EP 06006332A EP 1707330 A2 EP1707330 A2 EP 1707330A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- face
- compression
- compressed
- layer
- materials
- 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- Withdrawn
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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
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/024—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form the pressure on the material being transmitted through flexible or resilient wall parts, e.g. flexible cushions on the ramming surface, resilient wall parts pressing as a result of deformation caused by ram pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/061—Cushion plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/062—Press plates
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
Definitions
- the invention relates to a compression device.
- presses that have the purpose of forming products.
- the presses are used for compressing or for compacting ceramic materials placed inside moulds or on support surfaces and which are in a powder or plastic state: the pressure exerted on these ceramic materials causes their aggregation, forming tiles.
- the presses comprise a pressing movable part and a fixed part or base that has a generally flat upper surface opposite and facing the pressing movable part and on which the materials to be pressed are deposited and in which a hollow die may be lodged.
- the movable pressing part comprises a hydraulic driving cylinder that at an end facing the base supports a buffer, i.e.
- the buffer is suitable for compressing the layers of materials when the latter have been prepared on the surface of the fixed part or inside the die and for this reason has a compression face that faces the base and with which it acts in contact with the materials, possibly penetrating the die when the latter is present.
- the action of the buffer ceases and this is progressively lifted from the pressed materials, the surfaces of the formed tiles that are located in direct contact with the compression face of the buffer tend to adhere to the latter.
- the force of adhesion often causes damage to the surfaces of the tiles when the buffer is lifted up again after pressing, as the structure of the unfired tiles that have just been formed has a low cohesive force, whilst the force of adhesion to the surface of the buffer is sufficient to produce detachment of material from the formed tiles, irreparably damaging them.
- An object of the invention is to provide a compression device that avoids damage to products formed by means of compacting or pressing.
- a compression device comprising: pressing means provided with a compression face and arranged for compressing materials to be compressed placed on supporting means, for obtaining compressed materials, characterised in that between said compression face and said materials to be compressed there is interposed separating means, for separating said compression face from said compressed materials.
- a compression method comprising the phases of arranging on supporting means a layer of material to be compressed for obtaining compressed material; compressing said layer with pressing means provided with a compression face facing said layer of material to be compressed, moving said buffer pressing means away from said compressed materials, characterised in that between said compression face and said layer of materials to be compressed there is provided interposing separating means for separating said buffer means from said layer.
- the belt segment 10 extends non-rigid from the buffer 2, attached to the latter by means of the bars 11 that clamp the ends 110 and 210 thereof against the sides 202.
- the active compression action starts, which may be pressing or a lighter compacting that differ from one another only through the compression values that are applied by the buffer 2 to the layer 3, the belt segment 10 rests progressively with the first face 109 thereof on it, more precisely on the opposite surface 103 of the layer 3, until the compression face 102 compresses the layer 3, compacting or pressing it.
- the buffer 2 has completed the compression action on the layer 3, it is moved away from the latter, recalled by the press driving unit.
- the belt segment 10 follows the movement of the buffer 2, but, being non-rigid, separates from the surface 103 of the layer 3 not instantaneously but progressively, starting the detachment from the peripheral zones of the latter and continuing to the centre, until complete separation.
- This causes a division for each point of contact between the belt segment 10 and the surface 103 of the adhesion force and a consequent consistent proportional decrease of the value of the latter at each of these points of contact; thus the progressive separation that is prolonged over time and not complete and instantaneous enables detachment of material from the surface zones 103 of the formed tiles to be avoided.
Abstract
Description
- The invention relates to a compression device.
In many industrial sectors, amongst which the ceramics industry, have for some time used presses that have the purpose of forming products.
In the specific case the presses are used for compressing or for compacting ceramic materials placed inside moulds or on support surfaces and which are in a powder or plastic state: the pressure exerted on these ceramic materials causes their aggregation, forming tiles.
As is known, the presses comprise a pressing movable part and a fixed part or base that has a generally flat upper surface opposite and facing the pressing movable part and on which the materials to be pressed are deposited and in which a hollow die may be lodged.
The movable pressing part comprises a hydraulic driving cylinder that at an end facing the base supports a buffer, i.e. a male body shaped according to a preset perimeter; the buffer is suitable for compressing the layers of materials when the latter have been prepared on the surface of the fixed part or inside the die and for this reason has a compression face that faces the base and with which it acts in contact with the materials, possibly penetrating the die when the latter is present.
When the action of the buffer ceases and this is progressively lifted from the pressed materials, the surfaces of the formed tiles that are located in direct contact with the compression face of the buffer tend to adhere to the latter.
The force of adhesion often causes damage to the surfaces of the tiles when the buffer is lifted up again after pressing, as the structure of the unfired tiles that have just been formed has a low cohesive force, whilst the force of adhesion to the surface of the buffer is sufficient to produce detachment of material from the formed tiles, irreparably damaging them. - This circumstance occurs especially in cases in which the ceramic materials used are in powder state.
The technical aim of the invention is to improve the prior art.
An object of the invention is to provide a compression device that avoids damage to products formed by means of compacting or pressing.
According to an aspect of the invention a compression device is provided comprising: pressing means provided with a compression face and arranged for compressing materials to be compressed placed on supporting means, for obtaining compressed materials, characterised in that between said compression face and said materials to be compressed there is interposed separating means, for separating said compression face from said compressed materials.
According to another aspect of the invention there is provided a compression method comprising the phases of arranging on supporting means a layer of material to be compressed for obtaining compressed material; compressing said layer with pressing means provided with a compression face facing said layer of material to be compressed, moving said buffer pressing means away from said compressed materials, characterised in that between said compression face and said layer of materials to be compressed there is provided interposing separating means for separating said buffer means from said layer.
The compression device and the compression method thus enable products to be made without the surfaces of the latter being damaged during lifting of the buffer.
Further characteristics and advantages will become clearer from the disclosure of an embodiment of a compression device, illustrated by way of non-limitative example in the attached tables of drawings in which: - Figure 1 is a fragmentary side schematic view of a compression device in a compression phase of a layer of materials to be compressed;
- Figure 2 is a fragmentary side schematic view of the device in Figure 1 in a phase of partial moving away or moving to the layer of materials to be compressed;
- Figure 3 is a fragmentary side schematic view of the device in Figure 1 in a position of complete moving away from a layer of materials to be compressed or which have already been compressed.
- In this position, shown in Figure 3, the
belt segment 10 extends non-rigid from thebuffer 2, attached to the latter by means of thebars 11 that clamp theends sides 202.
When the active compression action starts, which may be pressing or a lighter compacting that differ from one another only through the compression values that are applied by thebuffer 2 to thelayer 3, thebelt segment 10 rests progressively with thefirst face 109 thereof on it, more precisely on theopposite surface 103 of thelayer 3, until thecompression face 102 compresses thelayer 3, compacting or pressing it.
When thebuffer 2 has completed the compression action on thelayer 3, it is moved away from the latter, recalled by the press driving unit.
Thebelt segment 10 follows the movement of thebuffer 2, but, being non-rigid, separates from thesurface 103 of thelayer 3 not instantaneously but progressively, starting the detachment from the peripheral zones of the latter and continuing to the centre, until complete separation.
This causes a division for each point of contact between thebelt segment 10 and thesurface 103 of the adhesion force and a consequent consistent proportional decrease of the value of the latter at each of these points of contact; thus the progressive separation that is prolonged over time and not complete and instantaneous enables detachment of material from thesurface zones 103 of the formed tiles to be avoided.
The
In the embodiment shown in the Figures, the
In a further embodiment that is not illustrated, the
Between the
The separating means 7 is supported on the
The laminar means 9 has a
The laminar means 9 comprises at least a
According to an embodiment of the laminar means 9, the
According to another embodiment of the laminar means 9, the
According to a further embodiment of the laminar means 9, the
The supporting
Each
The compression device operates as follows: a layer of
Claims (16)
- Compression device comprising: pressing means (2) provided with a compression face (102) and arranged to compress ceramic materials (3) to be compressed placed on rest means (4) for obtaining compressed ceramic materials, characterised in that between said compression face (102) and said ceramic materials to be compressed (3) there is interposed separating means (7), for separating said compression face (102) from said compressed ceramic materials (3).
- Device according to claim 1 wherein said pressing means comprises buffer means (2) couplable with said rest means (4) or die means.
- Device according to claim 1 or 2 wherein said separating means (7) is supported on said buffer means (2) by supporting means (8).
- Device according to claim 1 or 3 wherein said separating means (7) comprises supported flexible laminar means (9) facing said compression face (102) and having a first face (109) facing said ceramic materials (3) to be compressed and an opposite second rest face (209) facing said compression face (102).
- Device according to claim 4 wherein said laminar means (9) comprises at least a belt segment (10) supported non-rigidly on said buffer means (2) and having respective ends (110, 210) bilaterally connected to said compression face (102) with said supporting means (8).
- Device according to claim 4 wherein said first face (109) is smooth.
- Device according to claim 4 wherein said first face (109) is rough.
- Device according to claim 4 wherein said first face (109) is provided with low relief/high relief parts.
- Device according to claim 3 or 5 wherein said supporting means (8) comprises, for each end (110, 210) of said belt segment (10): a clamping bar (11) suitable for clamping a corresponding end against a corresponding side of said buffer means (2); fixing means (12) for fixing said clamping bar to said side of said buffer means (2).
- Compression apparatus, characterised in that it comprises a compression device (1) according to any one of claims 1 to 9.
- Compression method, comprising the phases of arranging on rest means (4) a layer of ceramic material (3) to be compressed for obtaining compressed material; compressing said layer of material (3) with pressing means (2) provided with a compression face (102) facing said layer of ceramic material (3) to be compressed, moving said pressing means (2) away from said layer of compressed ceramic materials (3), characterised in that between said compression face (102) and said layer of materials (3) to be compressed there is provided interposing separating means (7) for separating said pressing means (2) from said layer of ceramic materials (3).
- Method according to claim 11 wherein said separating means (7) comprises supported flexible laminar means (9)facing said compression face (102) and having a first face (109) facing said layer of materials (3) to be compressed and an opposite second rest face (209) facing said compression face (102).
- Method according to claim 12 wherein said laminar means (9) comprises at least a belt segment (19) non-rigidly supported on said pressing means (2) and having respective ends (110, 210) bilaterally connected to said compression face (102) by supporting means (8).
- Method according to claim 12 wherein said first face (109) is smooth.
- Method according to claim 12 wherein said first face (109) is rough.
- Method according to claim 12 wherein said first face (109) is provided with low relief/high relief parts.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO20050199 ITBO20050199A1 (en) | 2005-03-29 | 2005-03-29 | COMPRESSION DEVICE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1707330A2 true EP1707330A2 (en) | 2006-10-04 |
EP1707330A3 EP1707330A3 (en) | 2007-05-30 |
Family
ID=36608654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06006332A Withdrawn EP1707330A3 (en) | 2005-03-29 | 2006-03-28 | Compression device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1707330A3 (en) |
IT (1) | ITBO20050199A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUD20120204A1 (en) * | 2012-11-30 | 2014-05-31 | G M F S R L | MACHINE FOR THE PRODUCTION OF CEMENT TILES |
ITUB20156831A1 (en) * | 2015-12-11 | 2017-06-11 | Teknisolar Ltd | . LAMINATION PLANT WITHOUT MEMBRANE AND RELATIVE METHOD FOR THE REALIZATION OF LAMINATED PANELS OF DIFFERENT FORMATS, IN PARTICULAR PHOTOVOLTAIC PANELS. |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191306404A (en) * | 1913-03-14 | 1913-09-11 | Edmond Lanhoffer | Method of and Apparatus for the Pressing of Mouldings in Fibrous Material Agglomerated by Means of an Adhesive Matter or Agglutinant. |
DE2244449A1 (en) * | 1972-09-11 | 1974-04-25 | Helmut Fache | METHOD AND DEVICE FOR MANUFACTURING CERAMIC PANELS |
DE8809498U1 (en) * | 1988-07-26 | 1988-09-08 | Henke Maschinenfabrik Gmbh & Co Kg, 4952 Porta Westfalica, De | |
US5261986A (en) * | 1990-11-30 | 1993-11-16 | Murata Manufacturing Co., Ltd. | Method of fabricating ceramic laminated electronic component |
US5672310A (en) * | 1995-10-23 | 1997-09-30 | Nichiha Corporation | Method of manufacturing wood-cement board |
EP0894587A1 (en) * | 1997-08-01 | 1999-02-03 | SACMI Cooperativa Meccanici Imola Soc. Coop. a Resp. Lim. | Method for pressing ceramic powders, and equipment for its implementation |
-
2005
- 2005-03-29 IT ITBO20050199 patent/ITBO20050199A1/en unknown
-
2006
- 2006-03-28 EP EP06006332A patent/EP1707330A3/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191306404A (en) * | 1913-03-14 | 1913-09-11 | Edmond Lanhoffer | Method of and Apparatus for the Pressing of Mouldings in Fibrous Material Agglomerated by Means of an Adhesive Matter or Agglutinant. |
DE2244449A1 (en) * | 1972-09-11 | 1974-04-25 | Helmut Fache | METHOD AND DEVICE FOR MANUFACTURING CERAMIC PANELS |
DE8809498U1 (en) * | 1988-07-26 | 1988-09-08 | Henke Maschinenfabrik Gmbh & Co Kg, 4952 Porta Westfalica, De | |
US5261986A (en) * | 1990-11-30 | 1993-11-16 | Murata Manufacturing Co., Ltd. | Method of fabricating ceramic laminated electronic component |
US5672310A (en) * | 1995-10-23 | 1997-09-30 | Nichiha Corporation | Method of manufacturing wood-cement board |
EP0894587A1 (en) * | 1997-08-01 | 1999-02-03 | SACMI Cooperativa Meccanici Imola Soc. Coop. a Resp. Lim. | Method for pressing ceramic powders, and equipment for its implementation |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUD20120204A1 (en) * | 2012-11-30 | 2014-05-31 | G M F S R L | MACHINE FOR THE PRODUCTION OF CEMENT TILES |
ITUB20156831A1 (en) * | 2015-12-11 | 2017-06-11 | Teknisolar Ltd | . LAMINATION PLANT WITHOUT MEMBRANE AND RELATIVE METHOD FOR THE REALIZATION OF LAMINATED PANELS OF DIFFERENT FORMATS, IN PARTICULAR PHOTOVOLTAIC PANELS. |
WO2017098465A1 (en) * | 2015-12-11 | 2017-06-15 | Teknisolar Ltd | Membraneless laminator group and relative method for making laminated panels of different sizes, in particular photovoltaic panels |
Also Published As
Publication number | Publication date |
---|---|
EP1707330A3 (en) | 2007-05-30 |
ITBO20050199A1 (en) | 2006-09-30 |
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