GB2098126A - Production of marble granulate blocks - Google Patents

Production of marble granulate blocks Download PDF

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Publication number
GB2098126A
GB2098126A GB8212474A GB8212474A GB2098126A GB 2098126 A GB2098126 A GB 2098126A GB 8212474 A GB8212474 A GB 8212474A GB 8212474 A GB8212474 A GB 8212474A GB 2098126 A GB2098126 A GB 2098126A
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GB
United Kingdom
Prior art keywords
marble
blocks
resin
mould box
mixture
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.)
Granted
Application number
GB8212474A
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GB2098126B (en
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Individual
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Publication date
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Publication of GB2098126A publication Critical patent/GB2098126A/en
Application granted granted Critical
Publication of GB2098126B publication Critical patent/GB2098126B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/56Compression moulding under special conditions, e.g. vacuum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/242Moulding mineral aggregates bonded with resin, e.g. resin concrete
    • B29C67/243Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length
    • B29C67/244Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length by vibrating the composition before or during moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/56Compression moulding under special conditions, e.g. vacuum
    • B29C2043/561Compression moulding under special conditions, e.g. vacuum under vacuum conditions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00Shaping characteristics in general
    • B29C2791/004Shaping under special conditions
    • B29C2791/006Using vacuum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00Shaping characteristics in general
    • B29C2791/004Shaping under special conditions
    • B29C2791/008Using vibrations during moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

A mixture of marble grit, marble powder and the minimum essential quantity of polymerizable synthetic resin is loaded into a mould box which is transported into a vacuum chamber in which a ram equipped with vibrators applies combined pressure and vibration under vacuum to the mixture, to compact the mixture, for producing blocks which can be cut into slabs or smaller blocks, as required.

Description

SPECIFICATION Production of marble granulate blocks The present invention relates to a method for the production of blocks of marble granulate and marble powder having the strictly necessary quantity of synthetic resin needed to bind the inert materials, and intended to be cut into slabs or smaller blocks for use in building.
In Italian Patent No. 82.5401A/75 filed by the same applicant on 5.9.1975 and a first Addition No.
85.5641A/77 filed on 22.4.1977, (U.K. Patent No.
1592959) there is disclosed a method using combined vibration and pressure in an airless environment to form slabs of grit bound with resin.
The same method is now applied to blocks of marble granulate designed to be cut into slabs or smaller blocks for building purposes.
According to the present invention a method, for the production of blocks of marble granulate, comprises the steps of: (i) loading a mould box, by means of a dispenser, with a mixture of marble grit, marble powder, and a quantity of polymerizable synthetic resin (ii) applying force to the material in the mould box to compact it therein, under conditions of vibration and of reduced pressure, (iii) allowing or causing the synthetic resin to polymerize.
Preferably the quantity of the synthetic resin, relative to the quantity of the remainder of the mixture, is such that the resin is the minimum amount necessary to coat the surface of the granules and keep them closely bound together.
The resin may be a cold-polymerizable resin, or a heat-polymerizable resin, and in the latter case heat is applied to the compacted contents of the mould box to polymerize the resin content thereof. The mould box, with the compacted mixture therein, may be transported to an oven where heat is applied for polymerization.
An apparatus suitable for use in carrying out the method of the present invention is hereinafter particularly described with reference to the accompanying drawing, wherein the single figure is a side elevation of the apparatus.
In the drawing there is shown a mould box 1 into which is loaded, by means of a dispenser 2, a quantity of a mixture 3 comprising marble grit, marble powder and the minimum quantity of synthetic resin strictly necessary to coat the individual granules of marble but without filling the gaps between the granules.
The mould box 1 mounted on a transport platform 4 moves forward in the direction of the arrow on rollers 5 until it is within the machine proper in which there is a vacuum chamber 6 equipped with a suction tube 7 through which air can be sucked out by means of pumps (not illustrated). The chamber 6 has entry and exit sealable closures which can be pivoted by fluid jacks. Inside the vacuum chamber 6 there is a ram 8 which is moved downwards by pneumatic jacks 9, in the direction of the arrow, to compress the granular mass contained in the mould box 1.
A set of mechanical vibrators 10, arranged on the ram 8, provides vibratory action during exertion of pressure on the granular mass inside the vacuum chamber 6.
During this operation, the platform 4 supported on rollers 11 moves downwards, under the pneumatic control of jacks 12, so as to rest the bottom of mould box 4 on fixed supports 13 while the ram 8 applies pressure and vibration.
The volume of the granular mass is considerably reduced as can be seen in mould box 1 after it has left the vacuum chamber 6 and has moved forward on the rollers Sin the direction of the arrow.
If the synthetic resins used in the mixture are the type which can be cold-polymerized, the blocks of marble so obtained can simply be stored without further processing.
Polymerization of the resins hardens the block, which can subsequently be used, after cutting, in the form of slabs or smaller blocks, as required.
If the resins used are hot-polymerizable, it is necessary to take the blocks to suitable ovens, not illustrated in the drawing, to obtain a similar result.
The invention provides blocks obtained by the method here described and which, because they can be cut from time to time to the most convenient dimensions, lend themselves better to practical uses such as making baseboardsforwall claddings, floor tiles of various sizes and designs or the like, than the slabs of uniform thickness obtained by the process described in the previous patents cited above.
1. A method, for the production of blocks of marble granulate, comprising the steps of: (i) loading a mould box, by means of a dispenser, with a mixture of marble grit, marble powder, and a quantity of polymerizable synthetic resin (ii) applying force to the material in the mould box to compact it therein, under conditions of vibration and of reduced pressure, (iii) allowing or causing the synthetic resin to polymerize.
2. The method, as claimed in claim 1, wherein the quantity of the synthetic resin, relative to the quantity of the remainder of the mixture, is such that the resin is the minimum amount necessary to coat the surface of the granules and keep them closely bound together.
3. The method, as claimed in either of claims 1 and 2, wherein the resin is a cold-polymerizable resin.
4. The method, as claimed in either of claims 1 and 2, wherein the resin is a heat-polymerizable resin, and wherein heat is applied to the compacted contents of the mould box to polymerize the resin content thereof.
5. The method claimed in claim 4 comprising the further step of transporting the mould box, with the compacted mixture therein, to an oven and there applying said heat for polymerization.
6. The method, for the production of blocks of marble granulate, substantially as described herein
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Production of marble granulate blocks The present invention relates to a method for the production of blocks of marble granulate and marble powder having the strictly necessary quantity of synthetic resin needed to bind the inert materials, and intended to be cut into slabs or smaller blocks for use in building. In Italian Patent No. 82.5401A/75 filed by the same applicant on 5.9.1975 and a first Addition No. 85.5641A/77 filed on 22.4.1977, (U.K. Patent No. 1592959) there is disclosed a method using combined vibration and pressure in an airless environment to form slabs of grit bound with resin. The same method is now applied to blocks of marble granulate designed to be cut into slabs or smaller blocks for building purposes. According to the present invention a method, for the production of blocks of marble granulate, comprises the steps of: (i) loading a mould box, by means of a dispenser, with a mixture of marble grit, marble powder, and a quantity of polymerizable synthetic resin (ii) applying force to the material in the mould box to compact it therein, under conditions of vibration and of reduced pressure, (iii) allowing or causing the synthetic resin to polymerize. Preferably the quantity of the synthetic resin, relative to the quantity of the remainder of the mixture, is such that the resin is the minimum amount necessary to coat the surface of the granules and keep them closely bound together. The resin may be a cold-polymerizable resin, or a heat-polymerizable resin, and in the latter case heat is applied to the compacted contents of the mould box to polymerize the resin content thereof. The mould box, with the compacted mixture therein, may be transported to an oven where heat is applied for polymerization. An apparatus suitable for use in carrying out the method of the present invention is hereinafter particularly described with reference to the accompanying drawing, wherein the single figure is a side elevation of the apparatus. In the drawing there is shown a mould box 1 into which is loaded, by means of a dispenser 2, a quantity of a mixture 3 comprising marble grit, marble powder and the minimum quantity of synthetic resin strictly necessary to coat the individual granules of marble but without filling the gaps between the granules. The mould box 1 mounted on a transport platform 4 moves forward in the direction of the arrow on rollers 5 until it is within the machine proper in which there is a vacuum chamber 6 equipped with a suction tube 7 through which air can be sucked out by means of pumps (not illustrated). The chamber 6 has entry and exit sealable closures which can be pivoted by fluid jacks. Inside the vacuum chamber 6 there is a ram 8 which is moved downwards by pneumatic jacks 9, in the direction of the arrow, to compress the granular mass contained in the mould box 1. A set of mechanical vibrators 10, arranged on the ram 8, provides vibratory action during exertion of pressure on the granular mass inside the vacuum chamber 6. During this operation, the platform 4 supported on rollers 11 moves downwards, under the pneumatic control of jacks 12, so as to rest the bottom of mould box 4 on fixed supports 13 while the ram 8 applies pressure and vibration. The volume of the granular mass is considerably reduced as can be seen in mould box 1 after it has left the vacuum chamber 6 and has moved forward on the rollers Sin the direction of the arrow. If the synthetic resins used in the mixture are the type which can be cold-polymerized, the blocks of marble so obtained can simply be stored without further processing. Polymerization of the resins hardens the block, which can subsequently be used, after cutting, in the form of slabs or smaller blocks, as required. If the resins used are hot-polymerizable, it is necessary to take the blocks to suitable ovens, not illustrated in the drawing, to obtain a similar result. The invention provides blocks obtained by the method here described and which, because they can be cut from time to time to the most convenient dimensions, lend themselves better to practical uses such as making baseboardsforwall claddings, floor tiles of various sizes and designs or the like, than the slabs of uniform thickness obtained by the process described in the previous patents cited above. CLAIMS
1. A method, for the production of blocks of marble granulate, comprising the steps of: (i) loading a mould box, by means of a dispenser, with a mixture of marble grit, marble powder, and a quantity of polymerizable synthetic resin (ii) applying force to the material in the mould box to compact it therein, under conditions of vibration and of reduced pressure, (iii) allowing or causing the synthetic resin to polymerize.
2. The method, as claimed in claim 1, wherein the quantity of the synthetic resin, relative to the quantity of the remainder of the mixture, is such that the resin is the minimum amount necessary to coat the surface of the granules and keep them closely bound together.
3. The method, as claimed in either of claims 1 and 2, wherein the resin is a cold-polymerizable resin.
4. The method, as claimed in either of claims 1 and 2, wherein the resin is a heat-polymerizable resin, and wherein heat is applied to the compacted contents of the mould box to polymerize the resin content thereof.
5. The method claimed in claim 4 comprising the further step of transporting the mould box, with the compacted mixture therein, to an oven and there applying said heat for polymerization.
6. The method, for the production of blocks of marble granulate, substantially as described herein with reference to the accompanying drawing.
7. Blocks of marble granulate produced by the method claimed in any one of claims 1 to 6.
GB8212474A 1981-05-07 1982-04-29 Production of marble granulate blocks Expired GB2098126B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT85558/81A IT1150426B (en) 1981-05-07 1981-05-07 PROCESS FOR VIBRATION AND VACUUM PRESSURE OF BLOCKS OF MARBLE GRANULATE, INTENDED FOR CUTTING IN SLABS AND BLOCKS OBTAINED BY SUCH PROCESS

Publications (2)

Publication Number Publication Date
GB2098126A true GB2098126A (en) 1982-11-17
GB2098126B GB2098126B (en) 1985-01-16

Family

ID=11328054

Family Applications (1)

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GB8212474A Expired GB2098126B (en) 1981-05-07 1982-04-29 Production of marble granulate blocks

Country Status (13)

Country Link
JP (1) JPS581513A (en)
AU (1) AU548734B2 (en)
BE (1) BE893061A (en)
BR (1) BR8202696A (en)
DE (1) DE3216130A1 (en)
ES (2) ES511965A0 (en)
FR (1) FR2505320B1 (en)
GB (1) GB2098126B (en)
GR (1) GR76019B (en)
IT (1) IT1150426B (en)
MX (1) MX160447A (en)
PT (1) PT74850B (en)
YU (1) YU42609B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569949A1 (en) * 1984-09-07 1986-03-14 Garello Jean Machine for making hollow waffles
GB2164289A (en) * 1984-09-14 1986-03-19 Marcello Toncelli Block making process and apparatus
EP0338562A2 (en) * 1988-04-22 1989-10-25 The Budd Company Vacuum molding apparatus
WO2006128330A1 (en) * 2005-05-31 2006-12-07 Wei Zhou An artifical granitic or marmoreal mechanical fitting and manufacturing method thereof
CN101966721B (en) * 2009-07-27 2012-12-19 肇庆富盛复合材料有限公司 Vacuum vibration forming device for manufacturing artificial stones
EP2747967A1 (en) * 2011-08-23 2014-07-02 Christopher T. Banus Vacuum vibration press for forming engineered composite stone slabs
US9221191B2 (en) 2011-08-23 2015-12-29 Christopher T. Banus Vacuum vibration press for forming engineered composite stone slabs
US9221190B2 (en) 2011-08-23 2015-12-29 Christopher T Banus Production plant for forming engineered composite stone slabs
WO2020250013A1 (en) * 2019-06-14 2020-12-17 Parc Immobilière Sa Mould for the production of slabs and relative forming method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592617A (en) * 1985-02-06 1986-06-03 North American Specialties Corporation Solder-bearing terminal
JPH02502541A (en) * 1987-12-18 1990-08-16 ユニオン、カーバイド、コーポレーション Amine manufacturing method
IT1234012B (en) * 1989-01-13 1992-04-23 Marcello Toncelli PROCEDURE WITH COMBINED VIBRATION AND PRESSURE ACTION IN AIR-FREE ENVIRONMENT FOR THE FORMATION OF SLABS OF CERAMIC MATERIAL EVEN OF LARGE DIMENSIONS WITH HIGH MECHANICAL CHARACTERISTICS.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH530945A (en) * 1968-05-31 1972-11-30 Haniel Ag Franz Material suitable for building purposes
DE2054168C3 (en) * 1969-11-13 1976-01-02 Marcello Termine Di Cassola Vicenza Toncelli (Italien) Device for the production of blocks made of broken marble and polyester resin by mixing and vibrating these materials under negative pressure
JPS4927508A (en) * 1972-07-10 1974-03-12
DE2246770A1 (en) * 1972-09-23 1974-03-28 Richard Wild Reconstituted marble block making machine - comprises vacuum mixing and vibrating chamber
JPS51514A (en) * 1974-06-24 1976-01-06 Taiei Sales & Engineering Corp JINZOSE KINOSEIZOHOHO
JPS51102060A (en) * 1975-03-05 1976-09-09 Kuraray Co TAKOSHITSUNOMUKYUKIFUKUGOSEIKEIBUTSUNOSEIZOHO
JPS5139717A (en) * 1975-07-26 1976-04-02 Shimomura Ringyo Kk Dairisekimataha mikageishitono mozobanno seizohoho
IT1117346B (en) * 1977-04-22 1986-02-17 Toncelli Marcello PROCESS IMPROVEMENTS WITH COMBINED PRESSURE VIBRATION ACTION IN AIR-FREE ENVIRONMENT FOR FORMING GRAIN SHEETS LINKED WITH RESINS

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569949A1 (en) * 1984-09-07 1986-03-14 Garello Jean Machine for making hollow waffles
GB2164289A (en) * 1984-09-14 1986-03-19 Marcello Toncelli Block making process and apparatus
FR2570319A1 (en) * 1984-09-14 1986-03-21 Toncelli Marcello METHOD FOR FORMING BLOCKS OF ANY MATERIALS BY THE SIMULTANEOUS ACTION OF VIBRATION, COMPRESSION, AND VACUUM, FOR CUTTING INTO PLATES, AND TOOLS SUITABLE FOR CARRYING OUT SAID METHOD
AT398934B (en) * 1984-09-14 1995-02-27 Toncelli Marcello METHOD AND DEVICE FOR PRODUCING BLOCKS FROM ANY MATERIAL AND BLOCKS AS AN IMMEDIATE PRODUCT OF THIS METHOD
EP0338562A2 (en) * 1988-04-22 1989-10-25 The Budd Company Vacuum molding apparatus
EP0338562A3 (en) * 1988-04-22 1991-01-16 The Budd Company Vacuum molding apparatus
WO2006128330A1 (en) * 2005-05-31 2006-12-07 Wei Zhou An artifical granitic or marmoreal mechanical fitting and manufacturing method thereof
CN101966721B (en) * 2009-07-27 2012-12-19 肇庆富盛复合材料有限公司 Vacuum vibration forming device for manufacturing artificial stones
EP2747967A1 (en) * 2011-08-23 2014-07-02 Christopher T. Banus Vacuum vibration press for forming engineered composite stone slabs
EP2747967A4 (en) * 2011-08-23 2014-12-17 Christopher T Banus Vacuum vibration press for forming engineered composite stone slabs
US9221191B2 (en) 2011-08-23 2015-12-29 Christopher T. Banus Vacuum vibration press for forming engineered composite stone slabs
US9221190B2 (en) 2011-08-23 2015-12-29 Christopher T Banus Production plant for forming engineered composite stone slabs
WO2020250013A1 (en) * 2019-06-14 2020-12-17 Parc Immobilière Sa Mould for the production of slabs and relative forming method

Also Published As

Publication number Publication date
GB2098126B (en) 1985-01-16
IT8185558A0 (en) 1981-05-07
JPS581513A (en) 1983-01-06
BR8202696A (en) 1983-04-19
AU548734B2 (en) 1986-01-02
DE3216130C2 (en) 1991-08-01
PT74850B (en) 1983-12-02
BE893061A (en) 1982-08-30
GR76019B (en) 1984-08-03
ES8401919A1 (en) 1984-01-16
MX160447A (en) 1990-03-02
DE3216130A1 (en) 1982-12-02
YU42609B (en) 1988-10-31
PT74850A (en) 1982-06-01
IT1150426B (en) 1986-12-10
FR2505320A1 (en) 1982-11-12
YU95682A (en) 1985-04-30
FR2505320B1 (en) 1986-10-31
ES511965A0 (en) 1984-01-16
AU8318282A (en) 1982-11-11
ES272248U (en) 1983-11-16

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Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20020428