阅读说明：本技术 一种疏解竹束集装箱底板的制备方法 (Preparation method of untwining bamboo bundle container bottom plate ) 是由 刘锐楷 卢建房 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种疏解竹束集装箱底板的制备方法,包括以下步骤：制作疏解竹束,并将集装箱底板所需要的多个疏解竹束分成多组,每组疏解竹束捆绑成一捆；在托盘上铺设底表层；在底表层上铺设木单板形成下木单板层；将各捆疏解竹束铺在下木单板层上；割掉各捆疏解竹束的捆绑带,并将散开的疏解竹束搓均匀形成疏解竹束层；在疏解竹束层上设木单板形成上木单板层；在上木单板层上方铺设面表层；整体进行压制成型。本发明具有疏解竹束不需要编织成疏解竹束帘或排成一层层疏解竹束层,省去编织工序,降低生产难度,节省设备投资,降低了生产成本的优点。(The invention discloses a preparation method of a base plate of a discongesting bamboo bundle container, which comprises the following steps: manufacturing untwining bamboo bundles, dividing a plurality of untwining bamboo bundles required by a container bottom plate into a plurality of groups, and binding each group of untwining bamboo bundles into a bundle; laying a bottom surface layer on the tray; laying a wood veneer on the bottom surface layer to form a lower wood veneer layer; paving the bundle of untwined bamboo bundles on the lower veneer layer; cutting off the binding belts of the untwined bamboo bundles, and uniformly twisting the untwined bamboo bundles to form untwined bamboo bundle layers; arranging a wood veneer on the defibering bamboo bundle layer to form an upper wood veneer layer; laying a surface layer above the upper wood veneer layer; and integrally performing compression molding. The invention has the advantages that the untwining bamboo bundles do not need to be woven into untwining bamboo bundle curtains or arranged into untwining bamboo bundle layers layer by layer, the weaving process is omitted, the production difficulty is reduced, the equipment investment is saved, and the production cost is reduced.)

1. The preparation method of the base plate of the untwining bamboo bundle container is characterized by comprising the following steps of:

s1, manufacturing untwining bamboo bundles, dividing a plurality of untwining bamboo bundles required by the bottom plate of the container into a plurality of groups, and binding each group of untwining bamboo bundles into one bundle;

s2, laying a bottom surface layer (5) on the tray;

s3, paving a wood veneer on the bottom surface layer (5) to form a lower wood veneer layer (4);

s4, paving the bundle of untwined bamboo bundles on the lower wood veneer layer (4);

s5, cutting off the binding bands of the untwined bamboo bundles, and uniformly twisting the untwined bamboo bundles to form an untwined bamboo bundle layer (3);

s6, arranging a wood veneer on the untwined bamboo bundle layer (3) to form a wood veneer layer (2);

s7, paving a surface layer (1) above the upper wood veneer layer (2);

and S8, performing compression molding on the whole.

2. The method for manufacturing a discongested bamboo bundle container bottom plate according to claim 1, wherein in step S5, before cutting off the binding bands of the discongested bamboo bundles, limiting mechanisms are provided on both sides of the tray to prevent the discongested bamboo bundles from falling or shifting.

3. The method for preparing the discongent bamboo bundle container bottom plate according to claim 1, wherein the pressing in the step S8 comprises the following specific steps:

s81, cold pressing;

s82, paving impregnated paper on the surface layer (1);

and S83, hot pressing.

4. The method for preparing the base plate of the defibering bamboo bundle container as claimed in claim 1, wherein in step S1, the manufacturing steps of the defibering bamboo bundles are as follows:

s11, cutting off moso bamboo;

s12, splitting the bamboo tube;

s13, untwining the bamboo chips into untwining bamboo bundles with the green bamboos and the yellow bamboos removed;

s14, untwining and drying the bamboo bundles;

s15, untwining the bamboo bundles and dipping the bamboo bundles in glue;

s16, dipping the bamboo bundles, untwining the bamboo bundles and drying the bamboo bundles.

5. The preparation method of the defibering bamboo bundle container bottom plate according to any one of claims 1 to 4, wherein: in step S1, the weight of each bundle of untwined bamboo bundles is equal.

6. The preparation method of the defibering bamboo bundle container bottom plate according to any one of claims 1 to 4, wherein: the surface layer (1) is a wood veneer, a bamboo mat or a glass fiber layer.

7. The preparation method of the defibering bamboo bundle container bottom plate according to any one of claims 1 to 4, wherein: the bottom surface layer (5) is a wood veneer, a bamboo mat or a glass fiber layer.

8. The preparation method of the defibering bamboo bundle container bottom plate according to any one of claims 1 to 4, wherein: in step S3, the lower wood veneer layer (4) is provided in a plurality of layers.

9. The preparation method of the defibering bamboo bundle container bottom plate according to any one of claims 1 to 4, wherein: in step S6, the upper wood veneer layer (2) is provided with a plurality of layers.

Technical Field

The invention relates to the technical field of artificial board manufacturing in the wood industry, in particular to a preparation method of a base plate of a defibering bamboo bundle container.

Background

The main bearing area of the container is the bottom plate, and the container manufacturing industry requires that the bottom plate has high mechanical property, appearance quality, impact resistance and aging resistance. The existing container bottom plate category comprises a container bottom plate made of all wood and a bamboo-wood composite container bottom plate. The container bottom plate of all-wood needs to consume a large amount of hard wood, the growth cycle of the hard wood is long, and a large amount of felling causes very bad influence on the environment. With the increasing attention of human beings on environmental protection, wooden container bottom plates slowly quit the market and are replaced by bamboo-wood composite container bottom plates. At present, the structures formed by compounding the radial bamboo curtain, the chordwise bamboo curtain, the bamboo bundle curtain and the wood veneer are more common in the market. Patent document CN103934865A discloses a novel bamboo bundle container bottom plate and a production method thereof, wherein the structure is that bamboo bundle layers are matched vertically and horizontally, and impregnated paper or a veneering film is coated on the surface and the bottom. It has the following problems:

(1) it is difficult to arrange bamboo bundles of one piece having a non-uniform width and not particularly good flatness into bamboo bundle layers in the production process.

(2) The bamboo bundles are criss-cross, so that gaps among the bamboo bundles are large, and the overall strength of the bottom plate of the bamboo bundle container is further influenced.

(3) The impregnated paper or the veneering film is directly placed on the upper surface and the lower surface of the surface bamboo bundle layer and the bottom bamboo bundle layer, so that the gap of the surface bamboo bundle of the bottom plate is overlarge, and the quality of the surface bamboo bundle layer and the bottom bamboo bundle layer cannot meet the requirement of the bottom plate of the container.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the preparation method of the untwined bamboo bundle container bottom plate, which is used for untwined bamboo bundles without weaving into bamboo bundle curtains, saves weaving procedures and equipment investment, and does not need to arrange the untwined bamboo bundles into a layer-by-layer structure, thereby reducing production difficulty and production cost.

In order to solve the technical problems, the invention adopts the following technical scheme:

a preparation method of a base plate of a discongesting bamboo bundle container comprises the following steps:

s1, manufacturing untwining bamboo bundles, dividing a plurality of untwining bamboo bundles required by the bottom plate of the container into a plurality of groups, and binding each group of untwining bamboo bundles into one bundle;

s2, laying a bottom surface layer on the tray;

s3, laying a wood veneer on the bottom surface layer to form a lower wood veneer layer;

s4, paving the bundle of untwined bamboo bundles on the lower wood veneer layer;

s5, cutting off the binding bands of the untwined bamboo bundles, and uniformly twisting the untwined bamboo bundles to form untwined bamboo bundle layers;

s6, arranging a wood veneer on the untwined bamboo bundle layer to form an upper wood veneer layer;

s7, paving a surface layer above the upper wood veneer layer;

and S8, performing compression molding on the whole.

As a further improvement of the above technical means, in step S5, before cutting off the binding bands of the untwined bamboo bundles, limiting mechanisms for preventing the untwined bamboo bundles from falling or shifting are provided on both sides of the tray.

As a further improvement of the above technical solution, the pressing in step S8 includes the following specific steps:

s81, cold pressing;

s82, spreading impregnated paper on the surface layer;

and S83, hot pressing.

As a further improvement of the above technical solution, in step S1, the specific steps of untwining the bamboo bundle production are as follows:

s11, cutting off moso bamboo;

s12, splitting the bamboo tube;

s13, untwining the bamboo chips into untwining bamboo bundles with the green bamboos and the yellow bamboos removed;

s14, untwining and drying the bamboo bundles;

s15, untwining the bamboo bundles and dipping the bamboo bundles in glue;

s16, dipping the bamboo bundles, untwining the bamboo bundles and drying the bamboo bundles.

As a further improvement of the above technical solution, in step S1, the weight of each bundle of untwined bamboo bundles is equal.

As a further improvement of the technical scheme, the surface layer is a wood veneer, a bamboo mat or a glass fiber layer.

As a further improvement of the technical scheme, the bottom surface layer is a wood veneer, a bamboo mat or a glass fiber layer.

As a further improvement of the above technical solution, in step S3, the lower wood veneer layer is provided with a plurality of layers.

As a further improvement of the above technical solution, in step S6, the upper wood veneer layer is provided with a plurality of layers.

Compared with the prior art, the invention has the advantages that:

compared with the bamboo-wood composite container bottom plate in the prior art, the preparation method of the discongested bamboo bundle container bottom plate has the advantages that: firstly, in the invention, the untwining bamboo bundles can be directly used for integrating the container bottom plate without weaving the bamboo bundles into bamboo bundle curtains, so that the equipment investment of weaving the bamboo curtains and the bamboo bundle curtains can be reduced, the bamboo curtain and bamboo bundle curtain weaving process is omitted, the labor cost and the power consumption of weaving lines can be reduced, the production cost of the container bottom plate is reduced, the strength of the container bottom plate is more stable, and the product has more competitiveness; the untwining bamboo bundles do not need to be arranged into untwining bamboo bundle layers layer by layer, the untwining bamboo bundle layers are arranged in the same direction and are uniformly rubbed as a whole, and the production difficulty is reduced; secondly, wood veneers (an upper wood veneer layer and a lower wood veneer layer) are arranged below the surface layer and above the bottom surface layer, and the structure can ensure that the flatness of the bottom plate surface and the bottom plate of the container is very good and meets the requirement of the bottom plate of the container; thirdly, the untwining bamboo bundles are paved in the same direction instead of a mode of tiling and criss-cross, and gaps among the untwining bamboo bundles can be filled through extrusion in the hot pressing process.

Drawings

Fig. 1 is a schematic flow chart of a preparation method of a discongesting bamboo bundle container bottom plate according to the invention.

Fig. 2 is a schematic structural view of the bottom plate of the untwining bamboo bundle container in the invention.

The reference numerals in the figures denote:

1. a surface layer; 2. a veneer layer is arranged; 3. loosening the bamboo bundle layer; 4. arranging a veneer layer; 5. and (4) a bottom surface layer.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples of the specification.

As shown in fig. 1 and fig. 2, the method for preparing the base plate of the discongent bamboo bundle container of the embodiment includes the following steps:

s1, manufacturing untwining bamboo bundles, dividing a plurality of untwining bamboo bundles required by the bottom plate of the container into a plurality of groups, and binding each group of untwining bamboo bundles into one bundle;

s2, laying a bottom surface layer 5 on the tray;

s3, paving a wood veneer on the bottom surface layer 5 to form a lower wood veneer layer 4;

s4, paving the bundle of untwined bamboo bundles on the lower wood veneer layer 4;

s5, cutting off the binding bands of the untwined bamboo bundles, and uniformly twisting the untwined bamboo bundles to form an untwined bamboo bundle layer 3;

s6, arranging a wood veneer on the untwined bamboo bundle layer 3 to form an upper wood veneer layer 2;

s7, paving a surface layer 1 above the upper wood veneer layer 2;

s8, integrally pressing and forming;

compared with the bamboo-wood composite container bottom plate in the prior art, the untwining bamboo bundle container bottom plate obtained by the method has the advantages that: firstly, in the invention, the untwining bamboo bundles can be directly used for integrating the container bottom plate without weaving the bamboo bundles into bamboo bundle curtains, so that the equipment investment of weaving the bamboo curtains and the bamboo bundle curtains can be reduced, the bamboo curtain and bamboo bundle curtain weaving process is omitted, the labor cost and the power consumption of weaving lines can be reduced, the production cost of the container bottom plate is reduced, the strength of the container bottom plate is more stable, and the product has more competitiveness; the untwining bamboo bundles do not need to be arranged into untwining bamboo bundle layers layer by layer, and the untwining bamboo bundle layers are arranged in the same direction and are uniformly rubbed as a whole; the production difficulty is reduced; secondly, wood veneers (an upper wood veneer layer 2 and a lower wood veneer layer 4) are arranged below the surface layer 1 and above the bottom surface layer 5, and the structure can ensure that the flatness of the bottom plate surface and the bottom plate of the container is very good, so that the requirement of the bottom plate of the container is met; thirdly, the untwining bamboo bundles are paved in the same direction instead of a mode of tiling and criss-cross, and gaps among the untwining bamboo bundles can be filled through extrusion in the hot pressing process.

The difficulty of the invention lies in that the untwined bamboo bundles with a certain weight are uniformly paved, so that the compactness of each part of a plate blank is close to each other, and the influence on the strength of a bottom plate of the container due to the extremely large or small local compactness is avoided. In order to solve the technical problem, the core of the invention is as follows: the untwining bamboo bundles required by the bottom plate of the container are divided into a plurality of bundles with equal weight, the whole plate blank (laid on the lower wood veneer layer 4) is fully paved, and then the bundled packing belts are cut off to evenly rub the untwining bamboo bundles.

In this embodiment, in step S5, before the tying bands of the untwined bamboo bundles are cut off, the limiting mechanisms for preventing the untwined bamboo bundles from falling or shifting are provided on both sides of the tray, so that the stacked untwined bamboo bundles do not fall or shift after the tying bands are cut off.

In this embodiment, in step S1, the specific steps of untwining the bamboo bundle are as follows:

s11, cutting off moso bamboo;

s12, splitting the bamboo tube;

s13, untwining the bamboo chips into untwining bamboo bundles with the green bamboos and the yellow bamboos removed;

s14, untwining and drying the bamboo bundles;

s15, untwining the bamboo bundles and dipping the bamboo bundles in glue;

s16, dipping the bamboo bundles, untwining the bamboo bundles and drying the bamboo bundles.

In this embodiment, after the impregnated untwined bamboo bundles are dried, the untwined bamboo bundles are bundled in groups according to equal weight, and the untwined bamboo bundles are equal in weight.

In this embodiment, the gluing and pressing in step S8 specifically includes the following steps:

s81, cold pressing;

s82, paving impregnated paper on the surface layer 1;

and S83, hot pressing.

In this embodiment, the surface layer 1 is one of a wood veneer, a bamboo mat, or a glass fiber layer. The bottom surface layer 5 is one of a wood veneer, a bamboo mat or a glass fiber layer, and the structure can ensure that the flatness of the bottom plate surface and the bottom plate of the container is very good, so that the requirement of the bottom plate of the container is met. Wherein the lower wood veneer layer 4 may be one or more layers. The upper veneer layer 2 may be one or more layers. The upper wood veneer layer 2, the lower wood veneer layer 4 and the untwining bamboo bundle layer 3 form a core layer.

The invention provides three structures for implementing the baseboard of the untwining bamboo bundle container prepared by the method. Each example was 8 plies, Ply1 was impregnated paper, Ply2 was top Ply1, Ply8 was bottom Ply5, Ply3-Ply4 was top wood veneer layer 2, Ply5 was fluffed bamboo tie layer 3, and Ply6-Ply7 was bottom wood veneer layer 4. The structure of three kinds of untwining bamboo bundle container bottom plates is shown in the following table one:

watch 1

In the first structure, the surface layer 1 and the bottom layer 5 are wood veneers with the thickness of 0.4-0.9mm, in the second structure, the surface layer 1 and the bottom layer 5 are bamboo mats with the thickness of 0.8-1.2mm, in the third structure, the surface layer 1 is a wood veneer with the thickness of 0.4-0.9mm, and the bottom layer 5 is a glass fiber layer with the thickness of 0.6-1.0 mm. The upper and lower wood veneer layers 2 and 4 of the third embodiment are each 1.7mm thick. The weight of the untwining bamboo bundle layer 3 is 54-64kg, preferably 60 kg.

The mechanical properties of the discongent bamboo bundle container bottom plate of each implementation structure are as follows:

watch two

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.