CN202556509U - Coating veneer for base plate of bamboo and wood composite container - Google Patents

Abstract

A film-coated plywood for the bottom plate of a bamboo-wood composite container, which is formed by combining, pre-pressing, and hot-pressing multiple layers of veneers, and sequentially includes an upper layer, a veneer layer, a middle layer, a veneer layer, and a lower layer. In that: the veneer is wood veneer and/or bamboo curtain veneer, and the surface of the outermost veneer of the upper layer and/or lower layer is also covered with an adhesive film paper layer. The film-coated plywood for the bottom plate of the bamboo-wood composite container adopts the manufacturing method of assembly line operation, which avoids the phenomenon that the layers of the manual assembly are easily confused, reduces the use of adhesives, has high production efficiency, reduces production costs, and overcomes the characteristics of bamboo. For the uneven surface defects of the container bottom plate, the bending resistance of bamboo is better played, and the quality requirements of the container bottom plate are guaranteed.

Description

Film-coated plywood for a bamboo-wood composite container floor

technical field

The utility model relates to a plywood for a bamboo-wood composite container bottom plate, in particular to a film-coated plywood for a bamboo-wood composite container bottom plate.

Background technique

The main load-bearing surface of the container is the bottom plate. The container manufacturing industry requires the bottom plate to have high mechanical properties, appearance quality, impact resistance and aging resistance. The wear resistance and pollution resistance of the wooden floor of the container are poor, so the surface of the plywood needs to be painted, and high-quality wood should be used as the surface during production. Generally, high-density hard broad-leaved wood is used as the main raw material. Due to the long production cycle of this kind of tree species, the resources are constantly decreasing, which seriously affects the raw material supply of the container floor. More and more people in the industry are transferring wooden floors to bamboo-wood composite film-coated plywood; with people's continuous exploration and research on bamboo characteristics and bamboo resources, domestic bamboo and wood resources with abundant resources are used to produce bamboo-wood composite container floor Using film-coated plywood has far-reaching practical significance.

Bamboo has the characteristics of high tensile and bending strength. Bamboo-wood composite can well increase the strength of the container floor; due to the large gaps generated during the weaving process of bamboo curtains and the radian of bamboo itself, it is easy to cause unevenness. If there are defects such as large gaps, the utility model arranges the bamboo curtains in the middle of the wood veneer, so as to alleviate the defects of the bamboo curtains themselves. Attaching impregnated film paper on one or both sides of the plywood can enhance the wear resistance and pollution resistance of the plywood, and the user does not need to repaint the surface of the plywood. At present, film-coated plywood is used for the floor of some bamboo-wood composite containers, and its billet assembly method still adopts the wooden floor assembly method; the utility model adopts the manufacturing method of assembly line assembly, which avoids the disorder of the assembly layer and the veneer thickness of different layers. The amount of glue applied cannot be controlled, and the veneer with small format size is scattered to each layer structure, which requires high technical requirements for workers and low production efficiency; it improves the utilization rate and production efficiency of materials, reduces production costs, and ensures stability of product quality.

Utility model content

The purpose of the utility model is to provide a film-coated plywood for the bamboo-wood composite container floor with a new structure, stable quality, low production cost and meeting the impact resistance, wear resistance, pollution resistance and strength requirements of the container floor. By adopting bamboo-wood composite structure and attaching adhesive film paper on the surface, a unique bamboo-wood composite film-coated bottom plate is obtained, which saves materials, simplifies the blanking method, reduces the use of adhesives, and overcomes the uneven surface of the container bottom plate caused by the characteristics of bamboo. Defects, and better play the characteristics of strong bending resistance of bamboo.

In order to achieve the above object, the utility model adopts the following technical solutions:

A film-coated plywood for a bamboo-wood composite container bottom plate, which is formed by combining, pre-pressing, and hot-pressing multiple layers of veneers, and sequentially includes an upper layer, a veneer layer, an intermediate layer, a veneer layer, and a lower layer. The veneer is wood veneer and/or bamboo curtain veneer, and the surface of the outermost veneer of the upper layer and/or lower layer is also covered with an adhesive film paper layer.

The film-coated plywood for the bamboo-wood composite container bottom plate of the utility model, the upper layer and the lower layer are wood veneer plywood with 3 layers of longitudinal texture, and the middle layer is wood veneer with 4 layers of longitudinal texture and 1 layer The plywood is composed of dipped longitudinal bamboo curtain veneers sandwiched in the middle, and the veneer layer is formed by alternate lamination of transversely textured bakelite veneers and dipped longitudinal bamboo curtain veneers.

In the film-coated plywood for the bottom plate of the bamboo-wood composite container of the utility model, the veneers adjacent to the upper layer, the middle layer and the lower layer are all wood veneers with transverse grains.

The film-coated plywood for the bamboo-wood composite container bottom plate of the utility model, the tree species of the wood veneer are clone, abidon, maras, beech, eucalyptus, birch, poplar, eucalyptus, radiated pine, One or more of larch and masson pine.

The film-coated plywood for the bottom plate of the bamboo-wood composite container of the utility model has 21 veneer layers, and the bamboo curtain veneer has 5 layers.

The film-coated plywood for the bottom plate of the bamboo-wood composite container of the utility model, the core board of the wood veneer can be a veneer with a smaller specification, which can be miter-jointed and tooth-jointed on the same texture to form the required specification and size;

The film-coated plywood for the bottom plate of the bamboo-wood composite container of the utility model, the film-coated paper layer is the film-coated paper impregnated with phenolic resin glue and properly dried.

The film-coated plywood for the bottom plate of the bamboo-wood composite container of the utility model, the film paper layer is provided with wood grain or embossed embossment.

In the utility model, the splicing method of the smaller wood veneer of format size is:

1. Grind the wood veneer on the inclined grinder to a slope of 6-10 degrees, apply phenolic resin glue, and overlap the two sheets of slope. Specification size veneer.

2. Cut the wood veneer into a zigzag shape with a tooth height of 50mm on a toothed shearing machine for butt joint.

Beneficial effect:

1. The film-coated plywood for bamboo-wood composite container bottom plate of the utility model adopts the manufacturing method of assembly line operation, which avoids the phenomenon that the layers of the manual assembly are easy to be disordered, reduces the use of adhesives, and has high production efficiency. The production cost overcomes the uneven surface defect of the bamboo material on the surface of the container bottom plate, and the bending resistance of the bamboo material is better played to ensure the quality requirements of the container bottom plate.

2. The container bottom plate produced by bamboo wood composite and surface film coating utilizes abundant domestic bamboo resources, which greatly reduces the shortage of forest resources in the world and the raw material supply demand for container bottom plate production, and also reduces production costs.

3. A film-coated plywood for a bamboo-wood composite container floor of the utility model solves the problem that the appearance quality, impact resistance, aging resistance, wear resistance and pollution resistance of the container floor are poor, and the surface of the plywood needs to be painted. And the problem of using more high-quality wood in production.

Description of drawings

Fig. 1 is the structural representation of the utility model single-sided coating;

Fig. 2 is the structural representation of the utility model double-sided coating;

Detailed ways

Embodiment one:

Its structure as shown in Figure 1: impregnated adhesive film paper layer 1, laminated board 1101 above: adopt the wood veneer 101,102,103 of vertical grain altogether three layers; The inner sequence is: a layer of longitudinal bamboo curtain veneer 105 after dipping, a layer of transverse texture bakelite veneer 106, a layer of longitudinal bamboo curtain veneer 107 after dipping, and a layer of transverse texture bakelite veneer 108 ; Intermediate laminate 1102: wood veneers 109, 110 with longitudinal grain, longitudinal bamboo curtain veneer 111 after dipping, and wood veneer 112, 113 with longitudinal grain, a total of five layers; Textured bakelite veneer 114, a layer of longitudinal bamboo curtain veneer 115 after dipping, a layer of transversely textured bakelite veneer 116, a layer of longitudinal bamboo curtain veneer 117 after dipping, a layer of transversely textured veneer Bakelite veneer 118; lower laminated board 1103: a total of three layers of wood veneers 119, 120, 121 with longitudinal grain; wherein 121 is a clone veneer with longitudinal grain, and the bamboo-wood composite container bottom plate has 21 layers in total. After being combined on the billet production line, it is pre-pressed and hot-pressed to form a glue.

The glue used in this embodiment is a phenolic resin adhesive with a solid content of 48±1, and 2.4g of insecticide is added to every 1kg of glue in the glue.

The wood veneer used in this embodiment has a moisture content≤10%, double-sided glue coating, and the glue amount is 250-350g/m2, and the bamboo curtain veneer has a moisture content≤12% after drying. After the glue is impregnated, it is dried at low temperature until the water content is less than or equal to 18%.

The core wood veneer used in this embodiment can be smaller in size, and be mitered and toothed in the same grain direction; in order to improve the utilization rate of wood.

In this embodiment, the surface layer is the impregnated adhesive film paper 1 .

The film-coated plywood for the bamboo-wood composite container bottom plate of the utility model embodiment 1 has a flat and smooth surface without unevenness, and meets the quality requirements of the container bottom plate.

Embodiment two:

As shown in Figure 2, it is a schematic structural view of the double-sided coating of the present invention. On the basis of Embodiment 1, a layer of impregnated adhesive film paper 2 is added on the outer surface of the lower layer.

In this embodiment, the double-sided adhesive film paper is pasted on the table and the backboard.

The film-coated plywood for the bamboo-wood composite container bottom plate of the utility model embodiment 2 has a flat and smooth surface without unevenness, and meets the quality requirements of the container bottom plate.

In an embodiment of the present invention, a film-coated plywood for a bamboo-wood composite container bottom plate, the wood veneer used, the tree species are clone, abidon, maras, beech, eucalyptus, birch, poplar , eucalyptus, radiata pine, larch, masson pine one or more kinds, the veneer after sawing, rotary cutting and drying.

In an embodiment of the present invention, a film-coated plywood for a bamboo-wood composite container bottom plate, the bamboo curtain veneer used is cut from the original bamboo into bamboo sections of the required size and length, and the bamboo is cut to remove the internal nodes. , bamboo green, and bamboo yellow; dissect bamboo strips into required thickness, and use cotton thread to weave bamboo curtains into required length and width. Bamboo curtain veneers impregnated with phenolic resin glue after drying, and then dried at low temperature to meet the moisture content standard required by the production process.

In an embodiment of the present utility model, a film-coated plywood for a bamboo-wood composite container floor, the film-coated paper used is 75-90g/m2 kraft paper impregnated with phenolic resin glue and then properly dried.

The film-coated plywood for the bottom plate of a bamboo-wood composite container produced by the embodiment of the utility model is good in thickness, density, flatness of the board surface and deformation resistance after sawing and tenoning.

A kind of film-coated plywood for bamboo-wood composite container bottom plate produced by the embodiment of the utility model has impact resistance, wear resistance and pollution resistance, and the user does not need to paint the board surface during use; during the production process , Alleviating the inevitability of using high-quality wood for the surface board.

As mentioned above, for those of ordinary skill in the art, various other corresponding changes and deformations can be made according to the technical scheme and technical concept of the present utility model, and all these changes and deformations should belong to the protection of the claims of the present utility model. scope.

Claims (7)

1. a bamboo wood composite container baseboard is used film coating plywood; Form through combination, precompressed, hot-press gluing by the multilayer veneer; Comprise upper layer, ply, intermediate layer, ply, following surface layer successively; It is characterized in that: said veneer is veneer and/or bamboo curtain splint veneer, and the outermost layer veneer surface of said upper layer and/or following surface layer has also posted the glued membrane ply of paper.

2. bamboo wood composite container baseboard according to claim 1 is used film coating plywood; It is characterized in that: said upper layer and following surface layer are the veneer plywood of 3 layers of vertical texture; The plywood of said intermediate layer for being made up of the vertical bamboo curtain splint veneer plate behind the veneer of 4 layers of vertical texture and the 1 layer of impregnation that is clipped in the center, ply are that cross grain is crossed vertical bamboo curtain splint veneer behind bakelite veneer and the impregnation and replaced lamination and form.

3. bamboo wood composite container baseboard according to claim 1 and 2 is used film coating plywood, described upper layer, intermediate layer, down surface layer adjacent veneer be the veneer of cross grain.

4. bamboo wood composite container baseboard according to claim 2 is used film coating plywood, it is characterized in that: the level of the veneer of said glued board is 21 layers, and wherein said bamboo curtain splint veneer is 5 layers.

5. bamboo wood composite container baseboard according to claim 1 and 2 is used film coating plywood, it is characterized in that: the less veneer of said veneer central layer available sizes, carry out mitered, toe joint becomes required specification on identical texture.

6. bamboo wood composite container baseboard according to claim 1 and 2 is used film coating plywood, it is characterized in that: said glued membrane ply of paper is that phenolic resin glue flooded, through suitably dry bond paper.

7. bamboo wood composite container baseboard according to claim 1 and 2 is used film coating plywood, it is characterized in that: said glued membrane ply of paper is provided with wood grain or asperity embossment.