Method for producing a wooden cladding panel

Abstract

The invention relates to the field of producing glued wooden structures. A method for producing a wooden cladding panel consists in forming grooves in a panel base, applying an adhesive composition to the inside surface of a groove, inserting battens into the groove, and gluing the battens to the panel base. The battens and the panel base are glued together under pressure and at a temperature of 60-70°C, or under pressure. The grooves are formed in the panel base by milling. The panel base is fabricated from solid thermally-modified timber, plywood sheet, medium-density fibreboard, or laminated particleboard, and the battens are fabricated from timber treated with a fire-retardant and antibacterial agent. The technical result is that of improving the structural properties of the wooden cladding panel and preventing potential warping of the decorative battens or of the panel as a whole during its service life.

Description

[0001] MIC E04F 13 / 00 E04F 13 / 10 B44C 5 / 04

[0002] Method of producing wooden cladding panel

[0003] Field of technology

[0004] The invention relates to the field of production of glued wooden structures and can be used for the manufacture of decorative wall materials, roof covering elements, suspended and false ceilings, joinery and furniture panels.

[0005] State of the art

[0006] A "Method for Manufacturing a Molded Wooden Panel for Decorative Coatings" (patent CN1043623C) is known, intended for the production of panels for protecting and ornamenting the surfaces of furniture, walls, columns or other objects, even if the said surfaces are curved or have different planes. The panel has a flexible or rigid base of varying thickness and made of various materials, depending on the surface on which it is to be placed. A wooden sheet is attached to the base by a layer of glue. The method consists of milling the surface of the wooden sheet to outline several segments, the repetition of which results in the basic pattern of the panel. However, milling complex profiles requires highly qualified service personnel. A "Wooden Art Wall in the Interior and Exterior of a Building" (patent KP200389547Y1) is known. The present invention relates to the wooden finishing of interior and exterior walls with wood.A wide panel, made by joining several narrow pieces of wood together end-to-end, is cut to a specified standard and processed using a printer and laser machine. This panel features wood trim on the inside and outside, creating a decorative effect. These products are not intended for mass production.

[0007] A "Lattice Wooden Construction Panel" (patent RU 147337) is known for the production of wall panels. The lattice wooden construction panel consists of at least one row of wooden planks, spaced equally apart along their long sides, connected by additional wooden elements to form a flat structure. Between every two adjacent planks is at least one additional wooden element, made with two oppositely positioned flat and parallel surfaces, to each of which one of the two adjacent planks is glued along one side. The walls of the planks along each other adjacent side are located in a common plane. Gluing a large number of narrow wooden plates or planks together is a labor-intensive operation.

[0008] There are many products available on the market - "Wall slatted panels made of natural oak veneer"

[0009]

[0010] Hedonism Wood Oak Designer Slatted Panels

[0011]

[0012]

[0013] nova--2S 50Ь385дпщ), which are based on the process of gluing wooden slats to various substrates. This method places high demands on the quality of the wooden slats, as warping of the slats is possible after gluing, leading to a loss of the product's marketability.

[0014] The prototype chosen was the "Single-Layer Wooden Cladding Panel" (patent RU 27935), designed for wall or ceiling applications. The single-layer wooden cladding panel consists of thin-walled boards glued together with transverse grooves and transverse strips inserted into these grooves and glued on the back along the panel's edges at its ends. The back of each board contains several blind expansion joints and at least one longitudinal cut. Disadvantages include the prototype's lattice-like appearance, which reduces its decorative appeal. Furthermore, the glued elements are not heat-pressed, which reduces their resistance to deformation from various external factors, including moisture.

[0015] Disclosure of the essence of the invention.

[0016] The present invention is aimed at achieving a technical result consisting in improving the decorative properties of a wooden cladding panel.

[0017] The technical result of the claimed solution also consists in improving the structural properties of the wooden cladding panel, eliminating the possibility of warping of the decorative slats and the entire panel during its operation.

[0018] The stated problem is solved and the technical result is achieved by the fact that

[0019] a method for producing a wooden cladding panel, which consists of forming grooves on a panel base, making a lower edge with a tenon repeating the shape of the groove, applying an adhesive composition to the inner surface of the groove, installing slats in the groove, and gluing the slats to the panel base, characterized in that the slats are glued to the panel base at a distance from each other, wherein the gluing of the slats and the panel base is carried out under pressure and at a temperature of 60-70 ° C or under pressure, the formation of grooves in the panel base is carried out by milling simultaneously over the entire surface of the panel at specified inter-slat distances, the panel base is made of solid heat-treated wood or a sheet of plywood or MDF fiberboard or laminated chipboard, and the slats are made of heat-treated wood or non-heat-treated wood treated with a fire-bioprotective agent; boards with several structural tenons made on the inner side are used as slats;the front side of each strip is made with a shaped profile.

[0020] Implementation of the invention

[0021] The decorative panel consists of a base and slats. The base is made of heat-treated solid wood, plywood, MDF, laminated chipboard, or any other panel material that can be grooved for pressing. The slats and / or boards are made of heat-treated wood.

[0022] Using a multi-saw, guide cuts (grooves) are cut on the panel base (Fig. 1), for example, in depths from 2 mm to 7 mm and in widths from 12 mm, with specified inter-slat intervals, for example, 30 mm. This technology avoids errors in inter-slat spacing when sequentially making cuts and allows for precise maintenance of the panel's specified dimensions.

[0023] The slats are made from heat-treated wood and run through a four-sided planer. Upon completion, the slats have a flat, smooth surface with a specified geometry, wall cross-section, and a technological connecting tenon at the bottom of the slat corresponding to the groove dimensions in the panel base (Fig. 2). Glue is applied along the entire length of the resulting groove. After the required technological time, the slats are inserted into the grooves, tenon-side down (Fig. 3).

[0024] After connecting the slats to the base, the resulting panel is pressed, on average, under a pressure of 200 bar at 3.5 kg / cm 2 and at a temperature of 60-70°C. Pressing time is from 8 minutes. Temperature and time depend on the selected material, material moisture content, ambient humidity, and the adhesive used. Full polymerization of the adhesive after removing the panel from the press is achieved within 12 hours.

[0025] After the pressing process, the decorative panel cools and is processed on a calibrating and grinding machine to achieve and give it a uniform size and a flat and smooth surface.

[0026] If the slats are made of non-thermated wood, then before installation the slats are treated with a fire-bioprotective agent. Subsequently, the finished panel is covered with a decorative composition.

[0027] To join boards using multiple tongues and grooves, apply adhesive to the tongues and grooves and the entire contact area between the board and the panel base (Fig. 4). For example, when using a board up to 10 cm wide, two tongues are used. For boards 10 cm or thicker, the number of tongues is three or more, and the distance between boards is 2 cm. This distance, as well as the height and width of the board, can vary depending on the specifications.

[0028] The front side of the slats or boards can have a figured surface (Fig. 5).

[0029] This method of connection protects and prevents the glue from being squeezed out, the penetration of dust, dirt, sun and ultraviolet rays and other environmental influences, and gives the panel integrity and reinforced rigidity, preventing the panel from bending and deforming during operation (Fig. 6).

Claims

Formula 1. A method for producing a wooden cladding panel, which consists of forming grooves on a panel base, making a lower edge with a tongue that follows the shape of the groove, applying an adhesive composition to the inner surface of the groove, installing slats in the groove, and gluing the slats to the panel base, characterized in that the slats are glued to the panel base at a distance from each other, wherein the gluing of the slats and the panel base is carried out under pressure and at a temperature of 60-70°C or under pressure, the formation of grooves in the panel base is carried out by milling simultaneously over the entire surface of the panel at specified inter-slat distances, the panel base is made of solid heat-treated wood or a sheet of plywood or MDF fiberboard or laminated chipboard, and the slats are made of heat-treated wood or non-heat-treated wood treated with a fire-bioprotective agent.

2. A method for producing a wooden cladding panel according to paragraph 1, characterized in that boards with several structural tenons made on the inner side are used as slats.

3. A method for producing a wooden cladding panel according to paragraph 1, characterized in that the front side of each strip is made with a shaped profile.

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