EP4265386A2 - Maschine zum druckgiessen keramischer materialien und verbindungen, mit gewichtsausgleichsvorrichtung - Google Patents

Maschine zum druckgiessen keramischer materialien und verbindungen, mit gewichtsausgleichsvorrichtung Download PDF

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Publication number
EP4265386A2
EP4265386A2 EP23166733.8A EP23166733A EP4265386A2 EP 4265386 A2 EP4265386 A2 EP 4265386A2 EP 23166733 A EP23166733 A EP 23166733A EP 4265386 A2 EP4265386 A2 EP 4265386A2
Authority
EP
European Patent Office
Prior art keywords
machine
movable cradle
cradle
mold
movable
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.)
Pending
Application number
EP23166733.8A
Other languages
English (en)
French (fr)
Other versions
EP4265386A3 (de
Inventor
Manolo FRANCO
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.)
Siderurgica Scopetti Srl
Original Assignee
Siderurgica Scopetti Srl
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 Siderurgica Scopetti Srl filed Critical Siderurgica Scopetti Srl
Publication of EP4265386A2 publication Critical patent/EP4265386A2/de
Publication of EP4265386A3 publication Critical patent/EP4265386A3/de
Pending 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/265—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor pressure being applied on the slip in the filled mould or on the moulded article in the mould, e.g. pneumatically, by compressing slip in a closed mould
    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/265—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor pressure being applied on the slip in the filled mould or on the moulded article in the mould, e.g. pneumatically, by compressing slip in a closed mould
    • B28B1/266—Means for counteracting the pressure being applied on the slip or on the moulded article in the mould, e.g. means for clamping the moulds parts together in a frame-like structure
    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/28—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor involving rotation of the mould about a centrifugal axis
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
    • 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
    • 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
    • B28B17/009—Changing the forming elements, e.g. exchanging moulds, dies
    • 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
    • B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation
    • B28B7/241—Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces
    • 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
    • B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation
    • B28B7/241—Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces
    • B28B7/243—Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces for making plates, panels or similar sheet- or disc-shaped objects
    • B28B7/245—Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces for making plates, panels or similar sheet- or disc-shaped objects using transportable mould batteries

Definitions

  • the present invention relates to the field of the production of casting machines, specifically machines for pressure casting ceramic materials or compounds in molds which minimize the effort required of the operators on site. Even more advantageously, the present invention relates to a machine which, by developing in height, allows increasing production, save space and energy.
  • the most common production method is that in which a fluid mixture (called slip composed of a watery part and a clay part, kept in suspension), is poured into the appropriate casting molds, which are generally structures of porous material.
  • slip composed of a watery part and a clay part, kept in suspension
  • porous molds consist of at least two halves (of the male-female type), which, when joined together or inserted into each other, give rise to an internal volume from which the molded product acquires its shape.
  • These two or more parts of the mold comprise special systems with a different design, corresponding to the type of product to be molded, and are assembled at least from the following components:
  • porous resin molds are known properties, however, are a relatively high mechanical strength, which allows the use of pressure methods, i.e. methods in which the slip is fed into the mold and cured to the required thickness under high pressure (usually between 3 and 15 bars).
  • patent application MXPA03008860 (A ).
  • accessibility to the half-molds and to the casting is improved, facilitating the operations of demolding the raw products and transferring them to subsequent processing step, as well as the mold change procedure.
  • patent application EP1043132A2 Another example is provided by patent application EP1043132A2 .
  • the entire apparatus is also provided with means for pushing the movable part in the direction of the fixed part and systems for feeding the pressurized slip into the cavities which form when both parts of the mold are positioned against each other.
  • the object of the present patent application is to overcome the aforementioned drawbacks, proposing an innovative casting machine on one side developed in height, or by adopting three cradles for molds, allowing to obtain, in a small space, a high production and considerable energy savings, on the other comprising a weight zeroing movable surface, which reduces to a minimum the physical efforts made by the operators in handling the parts of the mold.
  • an innovative machine is provided for pressure casting ceramic materials or compounds in molds which minimize the effort required of the operators on site.
  • the invention develops in height with superimposed movable parts in which to engage the molds, which allow producing a greater quantity of products in a limited space; moreover, such casting machine is of the modular type allowing installation, inside the premises of the companies, in series through special pins: this factor, together with the development in height previously mentioned, allows significantly increasing the production of the companies, while occupying the same space and energy.
  • the invention is advantageously compatible with any material distribution system, preferably ceramic and/or compounds.
  • any material distribution system preferably ceramic and/or compounds.
  • it refers to materials such as:
  • the sturdiness and stability of the invention is guaranteed by a frame, fixable to the installation surface present in the company premises by means of special pins.
  • the frame is made up of a series of tubulars, fixed in such a way as to leave a free part included between two lateral and in which the movable cradles and the weight zeroing trolley are used.
  • the frame advantageously, with its structure protects and contains all the mechanical and electrical components.
  • said lateral panels are internally provided with guides, which allow the movable cradles and the weight zeroing trolley to move up and down.
  • a plurality of molds are engageable to the above cradles, which are each formed by a female part and a male part, which, when joined together or inserted into each other, give rise to an internal volume from which the molded product acquires its shape.
  • the lower movable cradle is the component engaged between said lateral panels, precisely in the lower part of the invention, which allows the engagement of at least one said female part of the mold.
  • the lower movable cradle is mobilized, during the casting step, towards the intermediate movable cradle, placed above it, so as to allow the closure of the female parts engaged with the respective male parts of the molds, the latter, precisely engaged on the intermediate movable cradle.
  • the cradle can rotate, during the fixing step, in such a way as to bring the female parts engaged from 0° to 180° with respect to the support plane of the invention, allowing a homogeneous distribution of the ceramic or composite material used for the realization of the product.
  • the upper movable cradle is also similar to it, also engaged within said lateral panels and in the upper part of the invention, and allows the engagement of at least a male part of the mold: in the same way it is mobilized, during the casting towards the intermediate movable cradle allowing closure of the male part with the respective female part of the mold, the latter engaged on said intermediate movable cradle; in addition, like the lower movable cradle, the upper movable cradle also rotates, during the fixing step, bringing the engaged male parts from 0° to 180° with respect to the support plane of the invention, allowing a homogeneous distribution of the ceramic material or compound used for the realization of the product and/or its cleaning.
  • the aforementioned intermediate movable cradle is a component, also movable, positioned between the lower movable cradle and the upper one within the space of the two lateral panels.
  • the intermediate movable cradle allows at the same time the engagement, on the lower surface, of several male parts corresponding to the female parts engaged on the lower movable cradle, and the engagement, on the upper surface, of female parts corresponding to the male parts engaged on the upper movable cradle.
  • the intermediate movable cradle can be mobilized during the casting step, both towards the lower and the upper movable cradle, so as to allow the closure of the female parts and the corresponding male parts.
  • the invention is completed by a weight zeroing trolley, positioned between said lateral panels, in front of the previously described movable cradles, in such a way that its rear part is perfectly aligned with the front limit switches of the same cradles, avoiding any collisions between the components.
  • the weight zeroing trolley is mobilized, through upward/downward movements along guides and allows, when it is aligned with at least one of the movable cradles, the removal, without physical effort, of the mold components by an operator: once these parts have been loaded on the weight zeroing trolley, it can be raised and/or lowered, according to the needs, so as to allow a mold change and/or cleaning operations.
  • Electricity is supplied by a supply system adapted for feeding all components of the machine.
  • the invention may comprise a Raspberry Pi computer, engaged and electrically connected to the control panel, which allows connecting the present invention with local area networks, wireless networks, Bluetooth connections and/or external devices: in this way, it is also possible, via network, to connect the casting machine to a remotely positioned PLC, which can mobilize the previously described components, increasing the safety of the operators.
  • the machine for casting ceramic materials and compounds with weight zeroing apparatus can be implemented with mechanical arms, which, engaged on the surface of the frame and electrically connected to the control panel, can mimic the loading movement on the weight zeroing trolley of the female parts and male parts usually carried out by operators. Even more advantageously, the mechanical arms can regulate and control the correct sealing of the parts of the mold during the casting step and carry out a correct and safe removal of the finished product.
  • the invention can comprise electric gates, engaged at the front and/or rear of the frame and mobilized, after the casting step, by the control panel and/or PLC, so as to give off heat towards the movable cradles, considerably improving the time necessary for drying the product.
  • temperature sensors can be engaged on the surface of the frame, connected to the control panel, which monitor the temperature present in the installation area and the temperature generated by the already described electric gates, in such a way as to allow safe and effective monitoring for the realization of the product.
  • FIGS. 1 and 2 the components of a machine 100 for casting ceramic materials and compounds with weight zeroing apparatus according to the present invention is shown, which, developing in height through the application of several overlapping movable cradles 13-14-15, considerably increases the production properties while occupying a small space; furthermore, the machine 100 for casting ceramic materials and compounds with weight zeroing apparatus, by virtue of the presence of a zeroing trolley 12, reduces to a minimum the physical effort required of the operators on site for mobilizing the parts 19-19' of the molds.
  • FIG. 1 shows a front view of the components constituting the machine 100 according to the present invention
  • FIG. 2 shows, through a lateral elevation, clarifying for the positioning, all the components of the machine 100 for casting ceramic materials and compounds with weight zeroing apparatus.
  • the invention comprises a frame 10, formed by a plurality of tubular elements joined together in such a way as to make the invention stable and safe and has a free central part comprised within two lateral panels 21-21'; moreover, the frame 10 contains and protects all the mechanical and electrical components.
  • the lateral panels 21-21' are provided with guides 16 which allow the movable cradles 13-14-15 to move upwards and/or downwards.
  • control panel 11 On the surface of the frame 10, in particular near the lateral panel, there is a control panel 11, which allows the invention to be switched on/off; moreover, this control panel allows all the mechanical movements of said movable cradles 13-14-15, through a system of gears and chains 20.
  • the invention requires a plurality of molds, which are each formed by a female part 19' and a male part 19, which, when joined together or inserted into each other, give rise to an internal volume from which the molded product acquires its shape.
  • These parts 19'-19 are coupled engaged on said movable cradles 13-14-15.
  • the invention comprises a lower movable cradle 15, engaged between said lateral panels 21-21', which allows eight female parts 19' of the mold to engage in the upper surface 15'.
  • the same lower movable cradle 15 is mobilized, during the casting step, towards the intermediate movable cradle 14 allowing the closure of the eight female parts 19' with the respective eight male parts 19 of the mold, engaged in the lower part 14" of the intermediate movable cradle 14. Furthermore, the lower movable cradle 15 can be mobilized in such a way as to rotate, during the fixing step, said female parts 19' of the mold from 0° to 180° with respect to the support plane of the invention, allowing a homogeneous distribution of the ceramic or composite material used for the realization of the product.
  • an upper movable cradle 13 also engaged between said lateral panels 21-21', in turn allows the engagement, in the lower surface 13', of eight male parts 19 of the mold.
  • the upper movable cradle 13 is mobilized, during the casting step, towards the intermediate movable cradle 14 allowing the closure of the eight male parts 19 with the respective eight female parts 19' of the mold, engaged in the upper part 14" of the intermediate movable cradle 14.
  • the upper movable cradle can rotate, during the fixing step, the previously engaged male parts 19 of the mold, from 0° to 180° with respect to the support plane of the invention, allowing a homogeneous distribution of the ceramic or composite material used for the realization of the product.
  • the upper movable cradle 13 is realized with movable brackets 17 present in a number of at least four for each installed male part 19 and mounted in the upper surface of said upper movable cradle 13: the movable brackets 17 not only improve the closing of said mold, but exert a balanced unloading, on four different points, when material is introduced inside the mold, avoiding the breakage thereof; the movable brackets 17 are adjustable according to the size of the molds and are reinforced by a diagonal reinforcing plate, so as to support heavy loads.
  • Said intermediate movable cradle 14 is engaged between said lateral panels 21-21' and in a median position between the lower movable cradle 15 and the upper movable cradle 13; also the intermediate movable cradle 14 is mobilized during the casting step, towards the lower movable cradle 15 and/or the upper movable cradle 13 so as to allow the closure of the female parts 19' and the corresponding male parts 19.
  • the invention is completed by a weight zeroing trolley 12, engaged between said lateral panels 21-21' and positioned in front of the movable cradles 13-14-15, so that its rear part 12' is perfectly aligned with the front limit switches of said movable cradles 13-14-15.
  • the weight zeroing trolley 12 by moving up/down along the guides 16 controlled by the control panel 11, allows, when aligned with at least one of the movable cradles 13-14-15, the removal, without physical effort, of the female parts 19' and male parts 19 by an operator. Subsequently, the weight zeroing trolley 12 raises and/or lowers the parts 19'-19 of the mold previously loaded thereon, so as to allow a mold change and/or cleaning operations.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP23166733.8A 2022-04-21 2023-04-05 Maschine zum druckgiessen keramischer materialien und verbindungen, mit gewichtsausgleichsvorrichtung Pending EP4265386A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102022000007859A IT202200007859A1 (it) 2022-04-21 2022-04-21 Macchina per colaggio in pressione di materiali ceramici e composti con azzeratore di peso

Publications (2)

Publication Number Publication Date
EP4265386A2 true EP4265386A2 (de) 2023-10-25
EP4265386A3 EP4265386A3 (de) 2024-01-03

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EP23166733.8A Pending EP4265386A3 (de) 2022-04-21 2023-04-05 Maschine zum druckgiessen keramischer materialien und verbindungen, mit gewichtsausgleichsvorrichtung

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EP (1) EP4265386A3 (de)
IT (1) IT202200007859A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043132A2 (de) 1999-04-09 2000-10-11 SACMI COOPERATIVA MECCANICI IMOLA Soc. Coop. a r.l. Vorrichtung mit zweiteiligen Formen zum Druckgiessen von Sanitärartikeln und entsprechende Form
MXPA03008860A (es) 2002-09-30 2004-04-15 Sacmi Maquina de molde unico para vaciado a presion de artefactos sanitarios, y metodos para el cambio del molde en tal maquina.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10148307A1 (de) * 2001-09-29 2003-04-24 Keramag Keramische Werke Ag Verfahren sowie Einrichtung zum Hohlgießen von keramischen Rohlingen, insbesondere zur Endverwertung im Sanitärbereich
GB2510182B (en) * 2013-01-29 2016-09-21 Pcl Ceram Ltd Pressure casting apparatus and method
CN105947938B (zh) * 2016-07-12 2018-04-13 广东丽柏特科技有限公司 一种锁定组件及使用其的提升装置和承载小车
CN106239699B (zh) * 2016-08-19 2019-02-05 九牧厨卫股份有限公司 一种垂直高压注浆成型机合模工艺
CN106671250B (zh) * 2016-12-01 2019-02-05 九牧厨卫股份有限公司 一种全包连体坐便器高压注浆成型工艺
GB2594142B (en) * 2018-04-09 2022-12-28 Pcl Ceramics Ltd A moulding method
TR201907415A2 (tr) * 2019-05-16 2019-06-21 Unimak Makina Sanayii Ve Ticaret A S Vi̇tri̇fi̇ye ürünler i̇çi̇n bi̇r basinçli döküm maki̇nesi̇
CN213260049U (zh) * 2020-08-13 2021-05-25 广东金马领科智能科技有限公司 全自动两开模注浆机
CN111975938B (zh) * 2020-08-27 2021-07-06 溆浦易锋精细瓷业有限责任公司 一种陶瓷注浆成型设备

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043132A2 (de) 1999-04-09 2000-10-11 SACMI COOPERATIVA MECCANICI IMOLA Soc. Coop. a r.l. Vorrichtung mit zweiteiligen Formen zum Druckgiessen von Sanitärartikeln und entsprechende Form
MXPA03008860A (es) 2002-09-30 2004-04-15 Sacmi Maquina de molde unico para vaciado a presion de artefactos sanitarios, y metodos para el cambio del molde en tal maquina.

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Publication number Publication date
EP4265386A3 (de) 2024-01-03
IT202200007859A1 (it) 2023-10-21

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