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WO1999050042A1 - Procede et appareil de production en continu de panneaux principalement faits d'agregats d'elastomeres - Google Patents

Procede et appareil de production en continu de panneaux principalement faits d'agregats d'elastomeres Download PDF

Info

Publication number
WO1999050042A1
WO1999050042A1 PCT/EP1999/002130 EP9902130W WO9950042A1 WO 1999050042 A1 WO1999050042 A1 WO 1999050042A1 EP 9902130 W EP9902130 W EP 9902130W WO 9950042 A1 WO9950042 A1 WO 9950042A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
components
heating
pressing
panels
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.)
Ceased
Application number
PCT/EP1999/002130
Other languages
English (en)
Inventor
Alberto Giordani
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.)
TECNOGOMMA Srl
Original Assignee
TECNOGOMMA 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 TECNOGOMMA Srl filed Critical TECNOGOMMA Srl
Priority to AU34182/99A priority Critical patent/AU3418299A/en
Publication of WO1999050042A1 publication Critical patent/WO1999050042A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/228—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length using endless belts feeding the material between non-rotating pressure members, e.g. vibrating pressure members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material

Definitions

  • the present invention relates to a method and an apparatus for the continuous production of panels made of predominantly elastomeric aggregate, particularly useful in the recycling of residues and waste of the rubber industry.
  • a wide variety of panels produced with the above waste is commercially available; these panels are suitable to meet the most disparate requirements in terms of construction, heat insulation and soundproofing and can be divided into two main categories: rectangular panels with sides having comparable dimensions; — longitudinally highly elongated panels.
  • the production process includes the following steps:
  • An object of the invention is to provide a method and an apparatus for the continuous production of panels made of predominantly elastomeric aggregate which allow to reduce the times, and accordingly the costs, for the production of the panels, furthermore allowing high production yields with great economies of scale.
  • a further object of the invention is to provide a method and an apparatus which allow to perform simultaneously steps which are sequential in conventional processes.
  • a further object is to provide a method and an apparatus which can be automated to a high degree and can be managed relatively easily by virtue of control and management interfaces .
  • a further object is to provide an apparatus which performs the method by using machines which are at least partly already known and commercially available at advantageous prices.
  • Still a further object of the invention is to provide a method and an apparatus which can also be used in the recycling of residues from other production fields, such as for example waste paper, cork chips, fabric cuttings, leather waste, polyurethanes and inert waste materials in general.
  • a method for the continuous production of panels made of predominantly elastomeric aggregate including an initial step for mixing the components of the panels and for adding binders and catalysts to the components, and final steps for edge trimming and cutting so as to form the panels, characterized in that it includes the intermediate steps of: — preparing a disaggregated layer of the components; — pressing and heating the layer during a continuous advancement thereof for the time required by the components to cross-link into an aggregated layer.
  • an apparatus for the continuous production of panels made of predominantly elastomeric aggregate which includes devices for mixing the components and for adding the binders and the catalysts to the components, a means for edge trimming and cropping an aggregated layer of the components so as to form the panels, characterized in that it includes a means for leveling the components in a disaggregated layer, a means for pressing and heating the layer and for simultaneously applying an advancement motion thereto which is uniform through the thickness of the layer, the devices and the means being driven by at least one control and management unit.
  • FIG. 1 is a partially sectional general side view of the apparatus according to the invention.
  • FIG. 2 is a detail perspective view of the pressing and heating means ;
  • FIG. 3 is a front view of the edge trimming action.
  • the method according to the invention includes an initial step of mixing the components of the panels, which are predominantly constituted by fragments, granules and shavings of rubber, granules of cork or of other material.
  • This mixture receives the addition, during the mixing step or separately, of chemical binders such as isocyanate or urea compounds and catalysts which must promote and accelerate, at adapted temperature and pressure conditions, the cross-linking of the components. Then a horizontal disaggregated layer of these components, levelled in an upward region, is prepared continuously. This layer is subjected to uniform, continuous and combined compressions in order to reduce its thickness to the final dimensions, and to heating in order to create the conditions suitable for producing chemical bonds, mediated by the binders, among the components. These actions are performed during a continuous advancement of the entire layer. Once pressing and heating have been completed, the layer is in a fully 6
  • the resulting layer is immediately subjected to trimming on the sides that lie parallel to the advancement direction and then cropped at preset intervals to obtain the finished panels.
  • the apparatus includes a mixer 2 in which the components 3 are mixed together with the binders and with the catalysts, metered according to the amounts to be mixed, which are in turn supplied by an additive feeder (not shown).
  • the components 3 thus mixed are discharged continuously onto lower members 4 of an underlying conveyor 5.
  • Each member is formed by a core with a horizontal base and with two vertical lateral walls in the direction of advancement of the underlying conveyor 5.
  • These members cause the advancement of the material below a leveling device 6, which is suitable to distribute the components in a disaggregated horizontal layer 7 which is leveled in an upward region.
  • the leveling device 6 is constituted by rotating or oscillating devices which can be of a per se known type.
  • This particular case shows a cylinder which is provided with paddles on its surface and rotates so as to repel the excess material.
  • the leveling device 6 is vertically adjustable in order to vary the thickness of the incoming components 3. In this way, by varying the input amounts, it is possible to vary the final density of the panels 19.
  • the layer thus arranged within the lower members 4 is drawn into a horizontal containment and pressing chamber 8 of a pressing and heating means 9 which is constituted by a strong structure which supports the underlying conveyor 5 and an overlying conveyor 10, which are arranged mutually opposite and parallel along an extent which constitutes the longitudinal dimension of the chamber 8.
  • the chamber 8 is formed, in a lower region, by the same lower members 4 and, in an upper region, by upper members 11 which form the overlying conveyor 10 and are constituted by horizontal plates, each of which fits between the lateral walls of the corresponding lower member 4.
  • the conveyors 5 and 10 have, in the portions that constitute the chamber 8 , an advancement motion whose direction and orientation are the same and whose speeds are equal in absolute value.
  • the heating of the layer 12 being aggregated occurs by contact between its surfaces and the lower members 4 and the upper members 11, which in turn are heated to approximately 90°C by irradiation of infrared rays originating from sources 13 located in the vicinity of the conveyors 5 and 10.
  • the two conveyors 5 and 10 can also be moved mutually closer, for example by means of a screws and bevel gear pairs assembly (not shown), in order to adjust the distance between the base core of the lower members 4 and the plates of the upper members 11, so as to be able to produce panels 19 having variable thicknesses and densities with the same presser means 9.
  • a screws and bevel gear pairs assembly (not shown)
  • metal profiles 14 which lie inside the conveyors in order to prevent excessive deformations of the containment and pressing chamber 8 when subjected to stress.
  • the layer is uniformly aggregated 15; by using the advancement applied to it by the conveyors 5 and 10, it is placed between an edge trimming means, 16, 17, which is constituted by four rotating circular blades which are arranged in pairs along the advancement direction of the aggregated layer 15.
  • the blades are arranged at right angles, so as to cut a step into the longitudinal edges of the aggregated layer 15.
  • a cropping means 18, such as a rotating circular blade like the preceding ones, acts to cut the layer on the fly at preset intervals at right angles to the advancement direction of the aggregated layer 15, thus providing the finished panel 19.
  • the apparatus 1 also includes two devices 20 for unwinding a flat support 21, made for example of bituminized feltpaper, fabric or non-stick material.
  • the components 3 are mixed with binders and catalysts and are then deposited haphazardly and continuously on the lower members 4 of the underlying conveyor 5 to carry them below the leveling device 6 which distributes them into the disaggregated horizontal layer 7 which is leveled in an upward region.
  • This layer is sent into the heated containment and pressing chamber 8 of the presser means 9 in which the combined action of the upper members 11 of the overlying conveyor 10 and of the lower members 4 of the underlying conveyor 5, by suitably compressing and heating the aggregating layer 12, facilitate the complete cross- linking of its components 3 whilst it advances toward the unloading region.
  • the layer 15 thus aggregated is then subjected to longitudinal and transverse cutting operations to produce the finished panel 19.
  • the invention achieves the intended aim and objects, the apparatus being capable of producing approximately 200 m 2 /h of panels against the 60 m 2 /h which can be produced with prior art systems.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

L'invention porte sur un procédé et un appareil de production en continu de panneaux principalement faits d'agrégats d'élastomères comprenant: une étape initiale de malaxage des composants des panneaux et d'adjonction de liants et de catalyseurs auxdits composants; des étapes finales de rognage et de découpage des bords pour former les panneaux; et des étapes intermédiaires de préparation d'une couche désagrégée de composants puis de chauffage et pressage de ladite couche. Les étapes intermédiaires se réalisent alors que la couche avance en continu pendant le temps requis pour la réticulation des composants et la formation d'une couche durcie. L'appareil comporte pour sa part des dispositifs (2) de malaxage des composants (3) et d'adjonction de liants et de catalyseurs, un moyen (16, 17) de rognage des bords de la couche durcie (15), un moyen (18) de cadrage pour former les panneaux (19); un moyen (6) de nivellement des composants de la couche (7) désagrégée; et un moyen (9) de pressage et chauffage de ladite couche tandis qu'on lui imprime un mouvement d'avance uniforme dans l'épaisseur. Les susdits dispositifs et moyens sont commandés par au moins une unité de commande et de gestion.
PCT/EP1999/002130 1998-03-30 1999-03-29 Procede et appareil de production en continu de panneaux principalement faits d'agregats d'elastomeres Ceased WO1999050042A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU34182/99A AU3418299A (en) 1998-03-30 1999-03-29 Method and apparatus for the continuous production of panels made predominantly of elastomer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI980065 ITVI980065A1 (it) 1998-03-30 1998-03-30 Procedimento ed impianto per la produzione in continuo di pannelli in conglomerato prevalentemente elastomerico
ITVI98A000065 1998-03-30

Publications (1)

Publication Number Publication Date
WO1999050042A1 true WO1999050042A1 (fr) 1999-10-07

Family

ID=11426656

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/002130 Ceased WO1999050042A1 (fr) 1998-03-30 1999-03-29 Procede et appareil de production en continu de panneaux principalement faits d'agregats d'elastomeres

Country Status (3)

Country Link
AU (1) AU3418299A (fr)
IT (1) ITVI980065A1 (fr)
WO (1) WO1999050042A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2589634A1 (es) * 2015-05-13 2016-11-15 Diagnósticos Y Reparaciones Play, S.L. Procedimiento de obtención de un material constructivo dotado de carácter de aislamiento acústico y a impactos; material constructivo así obtenido; y procedimiento de recubrimiento de un forjado empleando dicho material constructivo

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2312666A1 (de) * 1973-03-14 1974-09-19 Bayer Ag Werkstoff aus gummiabfaellen, insbesondere aus reifenschnitzeln
JPS5529550A (en) * 1978-08-24 1980-03-01 Dainippon Ink & Chem Inc Reclamation of thermosetting resin wastes
EP0135595A1 (fr) * 1983-07-08 1985-04-03 Dieter Arnds Procédé de fabrication d'un matériau de revêtement de sol, ou analogue, représentant une structure à une ou à plusieurs couches, ainsi que son utilisation pour le revêtement de sol de terrains et halls de sport
CA1270433A (fr) * 1989-05-17 1990-06-19 Tadeusz Henryk Jankowski Methode et systeme de fabrication de produits du bois
EP0715037A1 (fr) * 1994-11-29 1996-06-05 Alberto Giordani Panneau modulaire d'isolation thermique, acoustique et vibratoire et méthode de fabrication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2312666A1 (de) * 1973-03-14 1974-09-19 Bayer Ag Werkstoff aus gummiabfaellen, insbesondere aus reifenschnitzeln
JPS5529550A (en) * 1978-08-24 1980-03-01 Dainippon Ink & Chem Inc Reclamation of thermosetting resin wastes
EP0135595A1 (fr) * 1983-07-08 1985-04-03 Dieter Arnds Procédé de fabrication d'un matériau de revêtement de sol, ou analogue, représentant une structure à une ou à plusieurs couches, ainsi que son utilisation pour le revêtement de sol de terrains et halls de sport
CA1270433A (fr) * 1989-05-17 1990-06-19 Tadeusz Henryk Jankowski Methode et systeme de fabrication de produits du bois
EP0715037A1 (fr) * 1994-11-29 1996-06-05 Alberto Giordani Panneau modulaire d'isolation thermique, acoustique et vibratoire et méthode de fabrication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2589634A1 (es) * 2015-05-13 2016-11-15 Diagnósticos Y Reparaciones Play, S.L. Procedimiento de obtención de un material constructivo dotado de carácter de aislamiento acústico y a impactos; material constructivo así obtenido; y procedimiento de recubrimiento de un forjado empleando dicho material constructivo

Also Published As

Publication number Publication date
ITVI980065A1 (it) 1999-09-30
AU3418299A (en) 1999-10-18

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