CN204920104U - PVC floor with wood sandwich layer structure - Google Patents

Abstract

The utility model relates to a PVC floor with a solid wood core layer structure, which comprises a PVC wear-resistant layer, a decorative layer, a base material layer and a moisture-proof layer. There is also a fireproof layer between the decorative layer and the substrate layer, and a fixed bump is provided on one side of the substrate layer and a fixed groove is provided on the other side, wherein: the fireproof layer is a non-woven fabric layer composed of three layers of structure bonding , the substrate layer includes a surface layer, a bottom layer and a core layer arranged between the surface layer and the bottom layer; the utility model has simple structure, stable material and not easy to deform, beautiful appearance, good decorative effect, good wear resistance, and good fireproof and waterproof performance , the safety is improved, the service life is prolonged, the process for producing the composite floor is simple, the production energy consumption is low, and the environment is not polluted.

Description

A PVC floor with a solid wood core structure

technical field

The utility model relates to the technical field of production and processing of PVC floors, in particular to a PVC floor with a solid wood core structure, which belongs to the field of building decoration materials.

Background technique

In recent years, with the continuous and stable growth of my country's economy, home decoration has continued to heat up, providing a good market environment for wooden flooring and creating a huge market demand. Wooden flooring is a commonly used floor decoration material. Compared with carpet, stone, and ceramic tiles, wooden floor has natural and beautiful texture, light weight and easy processing, good thermal insulation, can adjust indoor temperature and humidity, and has the characteristics of being elastic to ease impact, giving people a feeling of returning to nature. feeling, so it is loved by people.

As the demand for wood flooring increases, the contradiction between wood supply and demand is becoming increasingly tense. Solid wood composite flooring is a composite of high-quality wood and fast-growing wood, and the amount of wood required for the assembly is small. As a substitute, the demand continues to rise. Growth has been widely used. On the one hand, it has saved a lot of high-quality wood for the world; It has practical significance, conforms to the industrial policy of the country and the industry, and is conducive to the sustainable development of the country; however, the current solid wood composite floor is volatile, not wear-resistant, expensive, difficult to prevent fire and moisture, difficult to install and poor in color quality. issues of beauty.

Utility model content

The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a PVC floor with a solid wood core structure. Well, it has good fireproof and waterproof performance, which improves the safety and prolongs the service life.

In order to solve the above technical problems, the utility model provides a PVC floor with a solid wood core structure, including a PVC wear-resistant layer, a decorative layer, a base material layer and a moisture-proof layer, from top to bottom are PVC wear-resistant layer, decorative layer , the substrate layer and the moisture-proof layer, a fireproof layer is also provided between the decorative layer and the substrate layer, one side of the substrate layer is provided with a fixing bump and the other side is provided with a fixing groove, wherein:

The fireproof layer is a non-woven fabric layer composed of three-layer structure bonding, in which the second layer is melt-blown cloth, and the first and third layers are flame-retardant cotton;

The substrate layer includes a surface layer, a bottom layer and a core layer arranged between the surface layer and the bottom layer. The surface layer, the core layer and the bottom layer are laminated and fixed, and the surface layer, the core layer and the bottom layer are cuboid structures with the same length and width. , the surface layer, the core layer and the superimposition around the bottom layer are all brushed with a layer of sealing wax;

The fixed bump on one side of the base layer is composed of an extension edge formed by extending along one side in the width direction of the core layer and a wooden block fixed on the extension edge. The wood block is perpendicular to the extension edge to form a T-shaped structure, and the other side of the base layer The fixing groove on the side is a U-shaped groove extending outward along the width direction of the substrate layer, and the back of the fixing groove is fixed at the superimposition of the surface layer, core layer and bottom layer, and the notch of the fixing groove extends inward to form Two blocks are arranged in parallel and a gap is left between the two blocks.

The technical scheme that the utility model is further limited is:

Further, in the aforementioned PVC floor with a solid wood core structure, the surface layer and the bottom layer are all PVC boards, and the core layer is poplar, pine or fir.

In the above-mentioned PVC floor with a solid wood core structure, the width of the extended edge formed by extending one side along the width direction of the core layer is 1-2 cm, and the length of the wooden block in the fixing protrusion is equal to the length of the core layer.

In the aforementioned PVC floor with a solid wood core structure, the fixing groove matches the fixing projection, and the distance between the two stoppers on the fixing groove is the height of the core layer.

In the aforementioned PVC floor with a solid wood core structure, the decorative layer is a wood-grained cortex, the wood-grained cortex is a TPU wood-grained skin; the moisture-proof layer is a thermosetting resin waterproof paper, plastic film or aluminum-plastic composite film.

The beneficial effects of the utility model are:

The decorative layer in the utility model is a wood-grain leather layer, and the wood-grain leather layer is TPU wood-grain leather. The TPU wood-grain leather not only looks high-grade but also is more environmentally friendly, healthier, and more adaptable to the trend. The TPU wood-grain leather not only has environmental protection and non-toxic Toxic, anti-mildew and anti-bacterial, wear-resistant and anti-corrosion, biocompatibility and other excellent properties, and resistance to twists and turns, acid and alkali oil, aging and oxidation resistance, broad weather resistance and other properties are also very excellent, TPU wood grain leather has a beautiful Texture, natural and comfortable sensory enjoyment, natural effect.

In the utility model, there is also a fireproof layer, that is, a non-woven fabric layer, between the decorative layer and the base material layer. The non-woven fabric is composed of three-layer structure bonding, wherein the second layer is melt-blown cloth, the first layer and the third layer All are flame-retardant cotton, the three layers are bonded by a hot rolling machine, and finally wound by a winder to form a non-woven layer;

The non-woven fabric layer is a combination of flame-retardant cotton and melt-blown fabric. The biggest feature of the spunbonded non-woven fabric is that the fibers in the fiber web are continuous filaments. Compared with other non-woven fabric products of the same weight, High strength, similar vertical and horizontal properties, but poor web formation uniformity and surface coverage; melt-blown non-woven fabrics are composed of ultra-fine fibers with small fiber diameters, large specific surface area, small porosity, and low filtration resistance , the filtration efficiency is high, and the shielding performance of the surface covering agent is very good, but its disadvantages are low strength and poor wear resistance. First combine the two, and the formed complex just makes up for each other's weaknesses, yes The prepared non-woven fabric has the characteristics of high strength and good wear resistance, and at the same time has excellent shielding performance, and when used on the floor, the strength and wear resistance of the floor are also enhanced.

The non-woven fabric is added to the floor in the utility model as a fireproof layer. The non-woven fabric is cheap, and it has excellent water repellency, porosity, good air permeability, and is easy to keep the surface dry. Because of its stable performance during use, Non-toxic, no smell, high safety, high strength due to the existence of non-woven fabric.

A moisture-proof layer is arranged on the lower surface of the base material layer to avoid water ingress during use and phenomena such as swelling and cracking to prolong the service life of the composite floor.

In the base material layer of the present utility model, the surface layer and the bottom layer are all PVC boards, and the core layer is composed of solid wood such as poplar, and the middle is a solid wood board to increase the stability of the entire base material layer. It also has the light weight and other properties of PVC floor, which enhances the strength and stability of the overall composite floor.

One side of the composite floor of the utility model is provided with a fixed protrusion and the other side is provided with a fixed groove. When splicing and combining, the fixed projection on one side of the composite floor is snapped into the fixed groove of an adjacent composite floor, which is convenient for assembly and disassembly. , and there is a baffle on the fixing groove, which avoids loosening and falling off, enhances the overall stability of the composite place during installation, and ensures normal use.

Description of drawings

Fig. 1 is the structural representation of the PVC floor with solid wood core layer structure designed by the utility model;

In the figure: 1-PVC wear-resistant layer, 2-decorative layer, 3-fireproof layer, 4-surface layer, 5-core layer, 6-bottom layer, 7-moisture-proof layer, 8-fixing bump, 9-fixing groove.

Detailed ways

Example 1

A PVC solid wood composite floor provided in this embodiment has a structure as shown in Figure 1, including a PVC wear-resistant layer 1, a decorative layer 2, a base material layer and a moisture-proof layer 7, and from top to bottom are PVC wear-resistant layer 1, Decorative layer 2, base material layer and moisture-proof layer 7, there is also a fireproof layer 3 between the decorative layer 2 and the base material layer, the decorative layer 2 is a wood-grain leather layer, the wood-grain leather layer is TPU wood-grain leather, and the moisture-proof layer 7 is thermosetting Resin waterproof paper, plastic film or aluminum-plastic composite film, one side of the substrate layer is provided with a fixed protrusion 8 and the other side is provided with a fixed groove 9, the fixed groove 9 is matched with the fixed protrusion 8, and the two upper sides of the fixed groove 9 The distance between the block stops is the height of the core layer 5, wherein:

The fireproof layer 3 is a non-woven fabric layer composed of three-layer structure bonding, wherein the second layer is melt-blown cloth, and the first and third layers are flame-retardant cotton;

The substrate layer comprises a surface layer 4, a bottom layer 6 and a core layer 5 arranged between the surface layer 4 and the bottom layer 6, the surface layer 4 and the bottom layer 6 are PVC boards, the core layer 5 is poplar, pine or Chinese fir, and the surface layer 4. The core layer 5 and the bottom layer 6 are superimposed and fixed, and the surface layer 4, the core layer 5 and the bottom layer 6 are cuboid structures with the same length and width. Brushed with a layer of sealing wax;

The fixed projection 8 on one side of the base material layer is made up of an extension edge formed by extending along one side in the width direction of the core layer and a wooden block fixed on the extension edge, and the extension edge formed by extending one side along the width direction of the core layer 5 The width is 1-2cm, and the length of the wooden block in the fixed projection 8 is equal to the length of the core layer 5. The wooden block is perpendicular to the extension edge to form a T-shaped structure, and the fixed groove 9 on the other side of the substrate layer is along the width direction of the substrate layer. The U-shaped groove formed by extending upward and outward, and the back of the fixing groove 9 is fixed on the superimposition of the surface layer 4, the core layer 5 and the bottom layer 6, and the notch of the fixing groove 9 extends inward to form two blocks. The blocks are set in parallel and there is a gap between the two blocks.

The production process of the PVC solid wood composite floor is as follows:

(1) Preparation of raw materials for the substrate layer. After the raw material boards of the surface layer, bottom layer and core layer in the substrate layer enter the factory, they are first manually inspected and graded, and those with insect eyes, decay, excessive defects, and inconsistent sizes are removed. Unqualified materials, and qualified material boards are stacked and stored according to grades, and the storage environment avoids direct sunlight exposure;

(2) Dry the qualified material boards before production, send each raw material board to the same kiln for drying, and maintain the moisture content of the surface layer and the bottom raw material board in the base material layer at 3-5%, and the moisture content of the core layer raw material board The rate is 8-9% to ensure that the floor will not be bent and deformed after hot pressing, and has good dimensional stability;

(3) Plane the core board in the substrate layer. Planing includes rough planing and fine planing, of which rough planing is 1-2 times, fine planing is 2-3 times, and then the surface layer and the core layer are respectively faceted according to the size requirements. and the bottom raw material boards are cut and sawed, and the surface layer, bottom layer and core layer boards obtained after processing are stacked to be compounded and hot-pressed;

(4) Place the bottom plate on the front roller table of the press, and after the core plate is glued on both sides by the rubber roller, it is covered with the bottom plate, and the surface plate is covered on the core plate, and then hot-pressed, hot The pressing pressure is controlled at 0.9-1.1MPa, the hot-pressing temperature is 90-98°C, and the base material layer is obtained by hot-pressing for 6-8 minutes. The amount of glue applied on both sides of the core layer board is controlled at 250-290g/m ² ;

(5) Slowly cool the substrate layer prepared by hot pressing to room temperature with wind at 23-27°C, brush sealing wax around the substrate layer, and form a sealing wax layer after drying;

(6) Coat the upper surface of the substrate layer with a fireproof layer, and print on the fireproof layer at a temperature of 100-115°C to form a decorative layer, and spray a PVC wear-resistant layer on the decorative layer, and then pass through a compound machine The PVC wear-resistant layer, decorative layer, and fireproof layer are thermally laminated on the base material layer, and the composite temperature is controlled at 120-150°C. After compounding, it is cooled and solidified by an air furnace, and the outlet temperature of the cold air furnace is controlled at 25-28°C. Place a moisture-proof layer on the lower surface of the substrate layer, forming a semi-finished product of the floor;

(7) Use a shaping machine with a temperature of 90-100°C and a conveyor belt speed of 35-45r/m to heat and soften the semi-finished product of the floor, then cool it with water to shape it, and then absorb water and dry it to get the shaped floor. semi-finished products;

(8) Adhesively fix the wooden block on the extended edge of one side of the core layer to form a fixed bump, and fix the fixing groove on the side of the core layer away from the fixed bump to obtain the finished product of the floor;

(9) Check the finished floor, remove the defective and unqualified products, and pack the qualified products into the warehouse.

The prepared composite floor is fixed and installed through the fixing bump 8 on one side of the substrate layer and the fixing groove 9 on the other side, and the fixing bump 8 on the composite floor is placed in the fixing groove 9 of the adjacent composite floor, Composition by analogy.

In addition to the above embodiments, the utility model can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the utility model.

Claims (5)

1. one kind has the PVC floor of solid wood core structure, comprise PVC wearing layer (1), decorative layer (2), substrate layer and damp-proof course (7), be followed successively by PVC wearing layer (1), decorative layer (2), substrate layer and damp-proof course (7) from top to bottom, it is characterized in that: between described decorative layer (2) and substrate layer, be also provided with fireprotection layer (3), described substrate layer side is provided with fixing projection (8) opposite side and is provided with holddown groove (9), wherein:

Described fireprotection layer (3) for nonwoven layer by three layer construction bond form, wherein the second layer is fusion spray cloth, and first floor and third layer are retardant cotton;

The sandwich layer (5) that described substrate layer comprises surface layer (4), bottom (6) and is arranged between surface layer (4) and bottom (6), superimposed fixing between described surface layer (4), sandwich layer (5) and bottom (6), and described surface layer (4), sandwich layer (5) and bottom (6) are length and the identical rectangular structure of width, the superimposed place of surface layer (4), sandwich layer (5) and bottom (6) surrounding is all brushed with one deck sealing wax layer;

The fixing projection (8) of described substrate layer side is made up of the extension edge extended to form along side on sandwich layer width and the wooden unit be fixed on extension edge, wooden unit forms T-shaped structure perpendicular to extension edge, the holddown groove (9) of described substrate layer opposite side is along the U-shaped groove formed that substrate layer width stretches out, and described holddown groove (9) back side is fixed on described surface layer (4), the superimposed place of sandwich layer (5) and bottom (6), the notch place of described holddown groove (9) extends internally formation two pieces of blocks, two pieces of described blocks be arranged in parallel and leave gap between two pieces of blocks.

2. the PVC floor with solid wood core structure according to claim 1, is characterized in that: described surface layer (4) and bottom (6) are PVC board, and described sandwich layer (5) is poplar, pine or China fir.

3. the PVC floor with solid wood core structure according to claim 1, it is characterized in that: the width of the extension edge extended to form along side on sandwich layer (5) width is 1-2cm, in described fixing projection (8), the length of wooden unit equals the length of sandwich layer (5).

4. the PVC floor with solid wood core structure according to claim 1, it is characterized in that: described holddown groove (9) is suitable with described fixing projection (8), and the distance between the upper two pieces of blocks of holddown groove (9) is the height of sandwich layer (5).

5. the PVC floor with solid wood core structure according to claim 1, is characterized in that: described decorative layer (2) is wood grain cortex, and described wood grain cortex is TPU wood grain skin; Described damp-proof course (7) is thermosetting resin waterproof paper, plastic sheeting or aluminum-plastic composite membrane.