WO2016059454A1 - Système de pressage en continu pour le revêtement et le collage de gaines en plastique sur des moulures, avec adhésifs à deux composants - Google Patents

Système de pressage en continu pour le revêtement et le collage de gaines en plastique sur des moulures, avec adhésifs à deux composants Download PDF

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Publication number
WO2016059454A1
WO2016059454A1 PCT/IB2015/000393 IB2015000393W WO2016059454A1 WO 2016059454 A1 WO2016059454 A1 WO 2016059454A1 IB 2015000393 W IB2015000393 W IB 2015000393W WO 2016059454 A1 WO2016059454 A1 WO 2016059454A1
Authority
WO
WIPO (PCT)
Prior art keywords
molding
profile
sheath
mold
adhesive
Prior art date
Application number
PCT/IB2015/000393
Other languages
English (en)
Spanish (es)
Inventor
Mariela VARGAS OSORNO
Camilo Antonio VARGAS OSORNO
Nicolas Guerrico Echeverria
Original Assignee
Vargas Osorno Mariela
Vargas Osorno Camilo Antonio
Nicolas Guerrico Echeverria
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 Vargas Osorno Mariela, Vargas Osorno Camilo Antonio, Nicolas Guerrico Echeverria filed Critical Vargas Osorno Mariela
Publication of WO2016059454A1 publication Critical patent/WO2016059454A1/fr

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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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/22—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using layers or sheathings having a shape adapted to the shape of the article

Definitions

  • the present invention is related to the processes of coating wood moldings, or profiles of other materials, with polymeric covers, for use in various applications, such as door frames, windows or similar elements. Specifically it relates to the process of joining a rigid and preformed plastic sheath with a considerable thickness to a profile of wood, or other materials.
  • US2012261049 proposes a plate application system comprising several film application stations. Each station comprises an inlet and an outlet for elongated flexible plastic elements.
  • the system has a transfer head has heated rollers that can be placed in the position and orientation adjustable to exert pressure and heat simultaneously.
  • this document is useful for applying only flexible sheets, that is, it does not allow preformed coatings to be applied.
  • EP1288424 proposes a profile supported on a table and a primer is applied through a first station mobile.
  • the primer is vented and dried by a second mobile station.
  • a sheet is attached to the profile by a third station. This process is useful for sheet thicknesses equal to or less than 0.3 mm, so it is not possible to apply preformed coatings either.
  • EP0137860 describes an apparatus comprising guns for applying an adhesive to an extruded profile, an air heater for drying and activating the primer, and pressing rollers for pressing the coating to the profile.
  • the cover is a flexible sheet that does not have a preform.
  • AT500966 proposes to produce extruded profiles with coatings or covering devices.
  • the production plant includes an extruder, a cooling device, a discharge device to place the coating layer.
  • This system proposes placing a flexible sheet plastic coating in line on a profile that is being extruded.
  • This document also does not allow to apply preformed covers as a coating.
  • US4472235 proposes an apparatus for producing profiles for frames.
  • the profiles have metal cores.
  • the apparatus comprises a conveyor belt for the metal cores, an adhesive application station, devices for adhering coatings to the cores and converging elements for applying contact pressure.
  • this system is adapted to apply flexible sheets and does not allow to apply preformed covers as a coating.
  • the present invention provides a system and method for producing coated moldings efficiently, in large quantities with simple assembly, while maintaining product quality in terms of durability and visual appeal.
  • rigid preformed plastic covers are applied to profiles, or moldings, which can be made of wood, plastic metals or other materials, in a continuous process.
  • the sheath applied as a coating in the present invention is preferably made of a rigid thermoplastic material, such as PVC, and is preformed to the size of the molding profile.
  • the sheath may also comprise a primer on the adhesion surface to allow activation and sticking of the adhesive.
  • the method of the present invention comprises, first of all, applying an adhesive on the molding, preferably a thermo-activatable polyurethane or two-component polyurethane, the molding is then passed through a tunnel with countercurrent hot air in order to dry the adhesive , volatilizing the solvents and leaving the polyurethane substrate. Then, by a process that can be manual, the preformed cover is placed on the molding.
  • an adhesive on the molding preferably a thermo-activatable polyurethane or two-component polyurethane
  • the sheathed molding is passed through a mold or heated press and that has the shape of the molding profile, this mold allows the entrance of the rigid plastic sheath superimposed on the molding on one side and gives it heat to allow the activation of the adhesives, and the priming agent, and thus intimately adhering the cover and the molding, which come out from the opposite side of the mold.
  • This mold is rigid and closely conforms to the assembly of the molding with the cover to facilitate the intimate bonding of both components in continuous.
  • the cover and molding set is always in motion, improving process productivity as the curing of the adhesives is done continuously.
  • the heated mold allows curing, activating or thermoactivating for curing, the adhesives and at the same time guarantees the shapes of the molding.
  • the product made by the described method is advantageous over the prior art since, due to the greater thickness of the coating, the defects of the molding are hidden. Thus, this procedure requires a lower quality control over the molding used as raw material.
  • Figure 1 shows the preformed rigid PVC sheath 1.
  • Figure 2 shows the molding 2 can be made of wood or other material.
  • Figure 3 shows the adhesive application process with a spray system with gun 6 on the molding 2.
  • FIG. 4 shows the adhesive drying machine 14.
  • Figures 5 6 and 7 show how to manually place the cover 1 on the molding 2.
  • Figure 8 shows the sheath gluing machine 7.
  • Figures 9 and 10 show a more detailed view of the mold or heated press for continuous forming 9, and shows the suggested location for heating resistors 13.
  • Figure 11 shows a general outline of the manufacturing process.
  • the . Sheath 1 ( Figure 1) is preferably made of a rigid thermoplastic material, such as PVC, and is preformed to the size of the molding profile. This molding generally has a thickness greater than 0.3 mm. Preferably, said sheath 1 comprises on the adhesion surface an agent of primer or impregnator that allows PVC to adhere intimately to the molding substrate.
  • the molding or profile 2 goes through a first impregnation step of adhesive, preferably a polyurethane which can be of two components and / or thermo activatable. This step can be done using a pneumatic spray gun 6 (see figure 3) or other application system. It is then passed to a drying machine of the adhesive 14 that has the following elements: a conveyor belt 3 that carries the molding 2 impregnated with adhesive by a tunnel 4, fans 5 that throw hot air backflow on the molding 2, to facilitate the solvent removal.
  • Figure 4 shows the adhesive drying machine 14, the molding 2 enters from the left side on a conveyor belt 3, to a drying tunnel 4, fans 5 with electric resistors generate hot air under pressure against the flow of the path molding to remove solvents and dry the adhesive.
  • the cover 1 is manually placed on the molding 2 (see figures 5, 6 and 7).
  • this cover set 1 and molding 2 are passed through the cover gluing machine 7.
  • the process is cured by temperature and pressed continuously (see figure 8) by means of the following elements: an input traction roller system 8; mold or press 9 with the preform of the molding and the sheath together, and heated for continuous forming; traction roller exit 10; mold temperature control system 11; and speed control system 12.
  • the heated mold or press 9 is the main element thanks to a group of heating resistors 13 that are properly distributed within the mold 9 (see figures 9 and 10).
  • the temperature generated activates the polyurethane type adhesives, thus promoting a curing and integration process that allows to create adhesion and cohesion of the whole.
  • the pressure and temperature exerted simultaneously by the mold allow to give fixed and precise shape to the molding 2 and the cover 1 integrating them as a single profile.
  • the above is achieved through a continuous process, as the input pull rollers 8 carry the material to the mold 9 and the output pull rollers 10 take it out of the mold 9 in a synchronized manner.
  • the residence time in the mold 9 is controlled (through a speed control system 12 of the bands 8, 10) and the temperature of the mold 9 (by a temperature controller 11) to generate an activation and adequate curing of the adhesive which, together with the pressure exerted by the mold 9 (thanks to its rigidity and adjustment to the cover 1 and molding 2) guarantee the generation of a resistant adhesion between the cover 1 and the molding 2.
  • the temperature generated in the mold 9 can additionally soften the polymer of the sheath 1, thus providing a more exact conformation to the shape of the molding 2.
  • the mold 9 corresponds to a longitudinal element with a constant cross-section emptying with the same contour of the molding.
  • the emptying is through, that is, it extends between the opposite ends in the longitudinal direction of the mold 9.
  • the finished product is a molded profile ready for use.
  • FIG 11 shows a general scheme of the manufacturing process
  • the moldings 2 in the process of impregnating adhesive are illustrated with a pneumatic gun 6, which enters polyurethane adhesive drying machine 14, with the conveyor belt 3 and in a tunnel 4 the volatile parts of the adhesive with the aid of hot air fans 5.
  • the cover 1 is assembled manually in the molding 2 and passed to the glue machine of the cover 1 in molding 2 in continuous.
  • the sheath gluing machine 7 receives the sheath assembly 1 with molding 2 by means of an inlet traction roller 8 and takes it to the mold or heated press for continuous shaping 9, then the molding 2 and covers 1 already glued are dragged by the output pull roller 10.
  • the detail of the heating resistors 13, the mold temperature control system 11 and speed control system 12 are also illustrated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention permet de coller des gaines en plastique rigides préformées sur des moulures en bois ou en autres matériaux de manière innovante, au moyen d'un moule ou d'une presse chauffé(e) et avec régulation de la température en vue d'un formage en continu, l'alimentation étant assurée par des rouleaux de traction d'entrée et de sortie synchronisés en vue du maintien d'une vitesse constante.
PCT/IB2015/000393 2014-10-17 2015-03-24 Système de pressage en continu pour le revêtement et le collage de gaines en plastique sur des moulures, avec adhésifs à deux composants WO2016059454A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CO14230683 2014-10-17
CO14230683 2014-10-17

Publications (1)

Publication Number Publication Date
WO2016059454A1 true WO2016059454A1 (fr) 2016-04-21

Family

ID=55746185

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2015/000393 WO2016059454A1 (fr) 2014-10-17 2015-03-24 Système de pressage en continu pour le revêtement et le collage de gaines en plastique sur des moulures, avec adhésifs à deux composants

Country Status (1)

Country Link
WO (1) WO2016059454A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1571515A (en) * 1975-12-05 1980-07-16 Schon J Manufacture of profile members for windows doors and like frmae assemblies
ES2337377T3 (es) * 2004-05-25 2010-04-23 Schuco International Kg Dispositivo y procedimiento para aplicar una pelicula sobre un componente.
US20130228269A1 (en) * 2010-09-03 2013-09-05 The Diller Corporation Apparatus and methods to manufacture shaped counter top edges for custom counter tops

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1571515A (en) * 1975-12-05 1980-07-16 Schon J Manufacture of profile members for windows doors and like frmae assemblies
ES2337377T3 (es) * 2004-05-25 2010-04-23 Schuco International Kg Dispositivo y procedimiento para aplicar una pelicula sobre un componente.
US20130228269A1 (en) * 2010-09-03 2013-09-05 The Diller Corporation Apparatus and methods to manufacture shaped counter top edges for custom counter tops

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