Method for manufacturing a floor board for a cargo vehicle bed and product thereof

Abstract

A manufacturing method of a floor board for a truck bed using bamboo as a raw material, including processes such as bamboo splitting, extension, adhesive application, assembly of semi-finished bamboo boards, and molding. In the rolling process, by spreading and roughing, the green and yellow parts and bamboo joints on the surface of the bamboo are removed, and no further setting of width and thickness is required in the finishing process, and the bamboo slices and rough split bamboo strips can be directly used in the manufacturing. It maximally utilizes bamboo resources and ensures the strength of the floor board. Also, a floor board for a truck bed is disclosed.

Description

Technical Field

[0001] The present invention relates to a method for manufacturing a floor board for a truck bed and its product, particularly to a method for manufacturing a high-strength bamboo floor board and its product.

Background Art

[0002] Bamboo is one of the fastest-growing plants in the world. According to research, the maximum growth rate of bamboo reaches 1.21 meters per 24 hours, and the growth of height and thickness can be completed in 2 to 3 months. Bamboo matures quickly, forms a forest in 3 to 5 years, and can produce bamboo shoots every year to grow new bamboo, with a high production volume and can be continuously utilized with a single afforestation. Bamboo is widely distributed and has a large resource scale. There are 1642 known bamboo species in the world, and the total area of bamboo forests in 39 countries that are already known is more than 50 million hectares, and the annual production volume of bamboo exceeds 600 million tons. Among them, there are more than 800 bamboo species in China. Using bamboo to manufacture boards is not only environmentally friendly but also easy to obtain raw materials and has a low price.

[0003] The loading platform or floor of a truck is usually composed of a surface layer and a core material layer. For example, in CN201510655393.4, an integrally formed vehicle loading platform for a van-type truck and its manufacturing and processing technology are disclosed. The outer layer material of this vehicle loading platform is glass fiber reinforced plastic, and a PVC foam board is used as the core material layer. This manufacturing and processing technology includes the following steps: 1) Treatment of the mold release material and curing at room temperature. 2) Laying of a surfacing mat, a composite mat, a PVC foam board, and a flow guiding composite mat. 3) Fixing of the Ω pipe and the coiled pipe, pasting of a sealing gum tape, and configuration of a vacuum system by laying a mold release cloth and a vacuum bag. 4) Sealed connection of the vacuum system and the resin collector, and inspection of the sealing performance of the vacuum system. 5) Pressure holding under vacuum. 6) Preparation of resin, injection of vacuum. 7) Curing, demolding, and post-treatment. Compared with the prior art, the present invention uses a PVC foam board as the core material layer, which has the advantages of waterproof, flame retardant, acid and alkali resistant, insect proof, lightweight, high hardness, heat preservation, sound insulation, and buffering. Integral molding by vacuum introduction makes both sides of the product smooth.

[0004] CN202010238137.6 The present invention belongs to the technical field of the manufacturing technology of vehicle loading platforms, and discloses a lightweight loading platform and its manufacturing method. Among them, it includes a first panel layer, a second panel layer, a core material layer, and a framework support layer. The core material layer is arranged between the first panel layer and the second panel layer. The core material layer is formed by combining a plurality of foam blocks with each other. An integrally formed framework support layer is filled at the joint between the core material layer and the first panel layer, between the core material layer and the second panel layer, at the four peripheral edges of the core material layer, and at the joint of any adjacent foam blocks within the core material layer. The framework support layer is integrally formed with the first panel layer and the second panel layer. The manufacturing procedure is as follows: laying, sealing, preparation and injection of an adhesive, curing, demolding, and thus a lightweight vehicle loading platform is obtained. The present invention adopts an integral curing and molding method. While obtaining a panel of a fiber reinforced resin composite material, a framework support layer is formed between the foam core material layers, and the manufactured vehicle loading platform is lightweight and heat-preserving, and its mechanical properties are greatly improved.

[0005] CN201520551206.3 This utility model relates to a vehicle loading platform with a fastening structure by mortise joints, and includes a vehicle loading platform body. The vehicle loading platform body is composed of two layers of glass fiber reinforced plastic plates and a lightweight base layer. A plurality of mortise joint structures are provided in the lightweight base layer, and mortise joint grooves are provided in the upper and lower two layers of glass fiber reinforced plastic plates. The bent corner of the vehicle loading platform body is connected with a hollow vehicle loading platform reinforcing angle. Thus, by adding a reinforcing angle to the bent corner of the vehicle loading platform body, defects such as the frame of the vehicle loading platform having a plate that is too thin to be welded or insufficient strength of the hinge connection part are overcome. Using a lightweight phenolic resin laminated plate as the basic structure layer and a glass fiber reinforced plastic plate as the surface protection layer, all are lightweight and environmentally friendly materials, without pollution, with a small load on the vehicle body. The phenolic resin laminated plate and the glass fiber reinforced plastic plate are fixed by a mortise joint structure, with a firm structure, high strength, good impact resistance, excellent weather resistance, corrosion resistance, long service life. Also, a gel coat layer is applied to the outer surface of the glass fiber reinforced plastic plate, and this utility model further combines aesthetics and durability.

[0006] CN202111611140.9 A vehicle loading platform including a loading platform unit with multiple ends interconnected is disclosed. The loading platform unit includes a plate body part, a first joint end, and a second joint end. The first joint end and the second joint end are respectively provided on both sides of the plate body part. In two adjacent vehicle loading platform units, the first joint end of one loading platform unit is connected to the second joint end of the other loading platform unit. Among them, the first joint end includes an outer insertion end, a snap-fit groove with a snap-fit space, and an inner joint end. The second joint end includes an inner scrap bridge end used for connecting the inner joint end, a slot with an insertion space, and a snap-fit end. A plug inserted into the slot is provided at the outer insertion end, a snap-fit end fitted into the snap-fit end groove is provided at the snap-fit end. Also, an injection space for injecting an adhesive is provided in the insertion groove and the snap-fit groove. Furthermore, the manufacturing and processing technology of the vehicle loading platform is also disclosed. By adopting the present invention, the structure is simple, the waterproof property is excellent, and the assembly process is also simple.

[0007] CN204748815U The present utility model relates to a non-adhesive joint type vehicle loading platform, including a substrate and a panel with a fire prevention function. At both ends of each bamboo slice on the panel, via holes are provided at a certain distance. A connecting shaft is arranged in the via hole. A stopper is provided at one end of the connecting shaft, and a thread is provided at the other end. A nut is installed on the thread. Corresponding grooves are respectively provided on the bamboo slices at both ends of the panel. The grooves correspond to the via holes of the bamboo slices. The stopper and the nut are located in the grooves. By this method, it is not necessary to fix the bamboo slices on the panel with an adhesive, which is environmentally friendly, and moreover, it is strong. Exhaust grooves penetrating vertically and horizontally and recessing inward are provided on the surface of the substrate to achieve the purpose of preventing the adhesion peeling and swelling of the panel with a fire prevention function, reducing losses, improving economic benefits. Fiber boards are used for the plates at both ends. The adhesive strength of the crack-resistant fiber board is higher than that of the bamboo floor, which can more effectively fix the vehicle loading platform and make it less likely to crack.

[0008] CN204748816U This utility model relates to a bamboo adhesive-bonded vehicle loading board including a vehicle loading board body. The vehicle loading board body includes a substrate and a panel with a fireproof function. The bent corners of the vehicle loading board body are connected by hollow reinforcing corners. Exhaust grooves that penetrate vertically and horizontally and recess inward are provided on the surface of the substrate. The exhaust grooves are located between the substrate and the panel. The substrate includes a middle layer board and end boards. Slots are provided on the surface at the lower part of the substrate, and reinforcing ribs are installed in the slots. A mixed coating of polyurethane resin and acid- and alkali-resistant properties is arranged on the surface of the panel. By providing exhaust grooves that penetrate vertically and horizontally and recess inward on the surface of the substrate, the purpose of preventing the adhesion peeling and swelling of the panel with a fireproof function is achieved, losses are reduced, economic benefits are improved. Fiber boards are used for the end boards. Since the adhesion strength of the crack-resistant fiber board is higher than that of the bamboo slices, the fixing of the vehicle loading board can be made more effective and it can be made less prone to cracking.

[0009] CN112518913A relates to a processing method of a bamboo composite board and the bamboo composite board, belonging to the technical field of bamboo utilization. The processing method of the bamboo composite board divides bamboo into at least half bamboo boards. To process the inner and outer curved surfaces of the bamboo boards to remove bamboo joints, a milling or shaving method can be adopted. To smooth the bamboo joint part and make it without obvious protrusions, a milling or shaving method can be adopted. The radius of the inner curved surface and the radius of the outer curved surface are processed into the same radius, and the length of the radius is set as the radius of the outer curved surface to ensure the utilization rate of bamboo. Adhesive is applied to both sides of the rotationally cut veneer, and one layer of rotationally cut veneer is added between two bamboo boards and pressed. It is characterized by the above method. The bamboo composite board can be processed by the above method. The bamboo composite board processed by this method improves the utilization rate of bamboo.

[0010] CN107053366A The present invention relates to a green-remaining bamboo-wood composite board including a single-sided structure and a double-sided structure. The single-sided structure is formed by adhering a green-remaining bamboo board and a veneer board. The double-sided structure is formed by adhering two green-remaining bamboo boards with a veneer board in between. The outer surface of the green-remaining bamboo board is the blue-green surface of bamboo, and a natural blue-green layer of bamboo is retained on the blue-green surface of bamboo. This green-remaining bamboo-wood composite board not only retains the original high hardness, high strength, excellent wear resistance and corrosion resistance of the green-remaining bamboo board, but also retains the blue-green color of the green-remaining bamboo. The present invention also discloses the manufacturing and processing technology of the green-remaining bamboo-wood composite board, and the process is as follows: material selection, cutting, removal of outer bamboo nodes, removal of inner bamboo nodes, opening, softening, unfolding, thickness setting and yellow removal, cooling and forming, low-temperature drying, forming green-remaining bamboo-wood composite board units by adhering with veneer boards, and joining and adhering these units to complete the green-remaining bamboo-wood composite board. In this processing technology process, the bamboo is softened and pollution-free, and does not deform or crack in the drying process of the green-remaining bamboo board, and the blue-green surface of bamboo maintains high hardness, smoothness and glossiness.

[0011] CN107053366B The present invention relates to a green-remaining bamboo-wood composite board including a single-sided structure and a double-sided structure. The single-sided structure is formed by adhering a green-remaining bamboo board and a veneer board. The double-sided structure is formed by adhering two green-remaining bamboo boards with a veneer board in between. The outer surface of the green-remaining bamboo board is the bamboo blue-green surface, and a natural bamboo blue-green layer is retained on the bamboo blue-green surface. This green-remaining bamboo-wood composite board not only retains the original high hardness, high strength, excellent wear resistance and corrosion resistance of the green-remaining bamboo board, but also retains the bamboo blue-green of the green-remaining bamboo. The present invention also discloses the manufacturing and processing technology of the green-remaining bamboo-wood composite board, and the process is as follows: material selection, cutting, removal of outer bamboo knots, removal of inner bamboo knots, opening, softening, unfolding, thickness setting and yellow removal, cooling and forming, low-temperature drying, and forming a green-remaining bamboo-wood composite board unit by adhering with a veneer board, and joining and adhering these units to complete the green-remaining bamboo-wood composite board. In this processing technology process, the moso bamboo is softened and pollution-free, and does not deform or crack in the drying process of the green-remaining bamboo board, and the bamboo blue-green surface maintains high hardness, smoothness and glossiness.

Summary of the Invention

[0012] The object of the present invention is to provide a manufacturing method of a high-strength bamboo floor board for a freight car platform. Another further object of the present invention is to provide a product obtained by the above manufacturing method.

[0013] To solve the above problems, the present invention uses bamboo as a raw material, includes bamboo splitting, extension, and forming, and adopts at least the following steps to achieve a manufacturing method of a high-strength bamboo floor board for a freight car platform: Step 1: Selection of raw materials: Use moso bamboo with a bamboo age of more than 4 years and a diameter of more than 50 mm. Step 2: Bamboo splitting: Cut the moso bamboo into moso bamboo joints with a length of 500 - 6000 mm, and use a slicer to cut the moso bamboo joints into 2 - 4 equal-width bamboo slices, and collect the bamboo slices and bamboo chips, or / and, Cut the moso bamboo into moso bamboo joints with a length of 1050 - 2050 mm, and then cut them into semi-finished bamboo strips with a width of 15 - 24 mm using a slicer. Collect the semi-finished bamboo strips and bamboo chips. Step 3: Expand the bamboo slices with a length of 500 - 6000 mm in a rolling process, remove the green and yellow parts on the surface of the bamboo, set the thickness, and collect the bamboo slices and bamboo chips. Or, Roughly plane the semi-finished bamboo strips with a length of 1050 - 2050 mm and a width of 15 - 24 mm to remove the green and yellow parts on the surface of the bamboo to obtain bamboo strips, collect the bamboo strips and bamboo chips, and use the bamboo strips to weave bamboo curtains. Step 4: Grind the bamboo chips, defective bamboo slices, and defective bamboo strips obtained in Step 2 and Step 3 to obtain powdery granular bamboo powder. Step 5: Dry the bamboo slices, bamboo strips, woven bamboo curtains, and bamboo powder until the moisture content reaches 8 - 12%. Step 6: Process the extensions of the dried bamboo slices and bamboo strips to form a conical shape, tooth shape, or inclined surface on the extensions. Step 7: Pour 1000 g of the dried bamboo powder and 400 - 700 g of the adhesive into a mixer respectively, mix well to obtain bamboo powder adhesive, and prepare it as needed. Step 8: Apply the adhesive to both sides or all four sides of the dried bamboo slices and bamboo strips, or immerse the bamboo curtain woven with the bamboo strips in the adhesive. Step 9: Arrange at least two bamboo slices with a length of 500 - 6000 mm coated with the adhesive side by side in the width direction, and fix the cotton tape with a width of 20 - 50 mm coated with the adhesive to the bamboo slices with resin nails or other nails, or create a combined bamboo slice of a size suitable for production operations by a wireless or wired weaving method. Or, Arrange at least two or more bamboo strips with a length of 1050 - 2050 mm coated with the adhesive side by side in the width direction, and extend the bamboo strips by a wireless or wired alternating weaving method or other extension methods to create a bamboo blind-shaped bamboo strip of a size suitable for production operations. Step 10: Assemble the bamboo board semi-finished products from bottom to top: First, the bottom surface layer is a phenolic resin film, a melamine film, or a side-pressure veneer of 2 mm or more. The second layer is a woven bamboo curtain coated with the adhesive. The third layer is the combined bamboo slices or the slatted bamboo strips. The fourth layer is the combined bamboo slices, slatted bamboo strips, a wooden buffer layer of 2.5 mm or more, glass fiber, or a woven bamboo curtain arranged horizontally or vertically. The fifth layer is the same as the third layer. The sixth layer is the same as the second layer. The upper surface layer of the seventh layer is a phenolic resin film, a melamine film, or a side-pressure veneer of 2 mm or more. At least seven layers of bamboo board semi-finished products can be obtained. Step 11: According to the requirement of whether the surface of the product is anti-slip, perform primary hot pressing on the bamboo board semi-finished product at a temperature of 130 - 160 °C and a pressure of 20 - 40 Kg / cm 2 to obtain a high-strength bamboo board.

[0014] In the present invention, through the rolling process of bamboo slices and roughing of bamboo strips, the green and yellow parts on the surface of bamboo are removed. In particular, for the rough-cut bamboo strips, there is no need to accurately set the width and thickness for the second time with a precision planer as in the conventional process. The bamboo slices and rough-cut bamboo strips can be directly used in the manufacture of products, and the material utilization rate can be improved to over 90%. For the creation of the combined bamboo slices or slatted bamboo strips, there is no need to replace the existing equipment of the enterprise, and the strength and support are also ensured.

[0015] According to the above, degrease the bamboo slices or bamboo strips obtained in Step 2 or Step 3. According to the above, perform anti-corrosion treatment on the bamboo slices or bamboo strips obtained in Step 2 or Step 3.

[0016] Control the drying temperature in Step 5 at 50 - 70 °C, and dry the bamboo slices, bamboo strips, bamboo powder, and woven bamboo curtains until the moisture content reaches 8 - 12%. To meet the thickness requirement of the product, in Step 10, according to the thickness of the product, repeat and add the three-layer structure of the third, fourth, and fifth layers.

[0017] Preferably, for the floorboard of a truck bed with strict thickness specifications, in the step 10, the bamboo powder adhesive mixed with an adhesive is applied to the third, fourth, and fifth layers respectively, and the above method and plastic resin nails or fixtures (such as soft aluminum nails, etc.) are used to combine bamboo semi-finished products of L2000-10000*W140-2100*T12-50mm. By applying the adhesive, not only can the plate material be adjusted, but the necessary strength can be ensured while suppressing costs.

[0018] In the step 11, high-strength bamboo floorboards can be manufactured into products of high-strength bamboo floorboards for truck beds with specifications of length 2000~10000mm, width 140~2200mm, and height 12~50mm through deep processing such as cutting, sawing, shaving, and drilling. Preferably, in the step 10, the woven bamboo curtains of the second and sixth layers can be replaced with a wooden buffer layer with a thickness of 1~2.5mm.

[0019] The present invention further provides a bamboo floorboard for a high-strength truck bed obtained by the above manufacturing method. The floorboard includes the following in order from bottom to top: the bottom surface layer is a phenolic resin film, a melamine film, or a side pressure veneer of 2mm or more, the second layer is a woven bamboo curtain coated with an adhesive, the third layer is a combination of bamboo slices or slatted bamboo splints as a skeleton structure, the fourth layer is a combination of bamboo slices arranged horizontally or vertically, slatted bamboo splints, the fifth layer is the same as the third layer, the sixth layer is the same as the second layer, and the upper surface layer of the seventh layer is a phenolic resin film, a melamine film, or a side pressure veneer of 2mm or more.

[0020] In the present invention, in order to precisely control the thickness of the product, a bamboo powder adhesive layer or a woven bamboo curtain coated with an adhesive is used between the third and fourth layers or between the fourth and fifth layers as an interlayer buffer layer and height adjustment layer. Furthermore, the present invention also provides an improvement in the manufacturing method of outdoor bamboo product plates suitable for manufacturing on an intelligent production line.

[0021] In the present invention, in order to maximize the utilization of bamboo raw materials, by rolling bamboo slices and roughing bamboo strips, the green and yellow parts on the surface of bamboo are removed, and by omitting the finishing cutting, the bamboo slices and rough bamboo strips are directly used in the production of products, improving the material utilization rate to over 90%. The buffer layer of the floor board for the cargo vehicle platform manufactured by the method of the present invention is a woven bamboo curtain. By using bamboo slices, not only the strength is ensured, but also the utilization of bamboo resources is maximized. By using combined bamboo slices or bamboo strips in a slat shape as the skeletal structure, sufficient strength is ensured and no investment in new equipment is required.

[0022] Bamboo products maintain a low-carbon level throughout their life cycle. Bamboo products have a negative carbon footprint compared to plastic products. Since bamboo products completely decompose naturally after use, they contribute to environmental protection and human health. Furthermore, the supply of raw materials is stable and easily available.

Brief Description of the Drawings

[0023]

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Explanation of Reference Numerals

[0024] 1--Anticorrosion tank 2--High-pressure sealing switch 3--High-pressure sealing pump 4--Overflow valve 5--Chemical solution supply valve / chemical solution discharge valve 6--Chemical solution supply pump / chemical solution discharge pump 7--High-pressure pump 8--High-pressure piping valve 9--Three-way valve 10--Chemical solution supply three-way valve / chemical solution discharge three-way valve 11--Metering tank 12--Vacuum pump 60--Finishing device 61--Tripod heavy-duty gantry loader 62--Intelligent depaneling roller table 63--Roller table 64--Double milling with saw and milling functions in the vertical direction 65--4m roller table 66--Horizontal connection roller table 67--Double milling with saw function in the vertical direction 68--Intelligent board collecting roller table 69--Side gantry loader

Embodiments for Carrying Out the Invention

[0025] First Embodiment A manufacturing method of a floor board for a goods vehicle loading platform using bamboo as raw material, including bamboo splitting and shaping, and comprising the following steps: Step 1: Selection of raw materials: Use Moso bamboo with a bamboo age of 4 years or more and a diameter of 50 mm or more. The length is not limited.

[0026] Hereinafter, with reference to FIGS. 1 to 2, Step 2: Bamboo splitting: According to the optimal utilization rate of the Moso bamboo, the selected Moso bamboo is cut into Moso bamboo joints with a length of 500 to 6000 mm, and the Moso bamboo joints are cut into 2 to 4 equal-width bamboo slices using a slicer, and the bamboo slices and bamboo chips are collected. Or, The selected Moso bamboo is cut into Moso bamboo joints with a length of 1050 to 2050 mm, and cut into bamboo half-products with a width of 15 to 24 mm (the general process is bamboo splints) using a dedicated slicer, and the bamboo half-products and bamboo chips are collected respectively. Hereinafter, with reference to FIG. 3, Step 3: The equal-width bamboo slices with a length of 500 to 6000 mm are expanded in a dedicated rolling process. In this process, while expanding the bamboo slices, the green and yellow parts on the surface of the bamboo are removed, the thickness is set, and the bamboo slices and bamboo chips are collected. Or, The bamboo half-products with a length of 1050 to 2050 mm and a width of 15 to 24 mm are roughly planed using a dedicated planer, the green and yellow parts on the surface of the bamboo are removed, and the roughly planed bamboo splints are collectively called bamboo splints, and the bamboo splints and bamboo chips are collected. Step 4: In the above Steps 2 and 3, the bamboo chips generated by machining, and the defective bamboo slices and bamboo splints are pulverized to obtain powdery granular bamboo powder. Here, degreasing treatment may or may not be performed on the bamboo slices or bamboo splints, and anti-corrosion treatment is also optional. Step 5: The bamboo slices, bamboo splints, woven bamboo curtains, and bamboo powder are dried respectively by controlling the moisture content to 8 to 12% and the temperature to 50 to 70 °C.

[0027] Next, with reference to FIGS. 4-1 to 4-3, Step 6: According to the size of the product, process the dried bamboo slices and the extensions of the bamboo strips, and form a conical shape (see FIG. 4-1), a toothed shape (see FIG. 4-2), or an inclined surface (see FIG. 4-3) on the extensions. Step 7: Pour 1000 g of the dried bamboo powder and 400 - 700 g of the adhesive into a mixer respectively, mix well to obtain a bamboo powder adhesive, and prepare it as needed. Step 8: Apply the adhesive to two or four sides of the dried bamboo slices and bamboo strips, or dip the bamboo curtain woven with bamboo strips into the adhesive to apply the adhesive.

[0028] Next, with reference to FIGS. 5-1 to 5-2, Step 9: Arrange at least two bamboo slices with a length of 500 - 6000 mm coated with the adhesive side by side in the width direction according to the specifications of the product, and fix a cotton cloth tape with a width of 20 - 50 mm coated with the adhesive to the bamboo slices with resin nails (or other fixtures such as aluminum nails that do not damage other hot pressing dies) (see FIG. 5-1), or create a combined bamboo slice of a size suitable for the production operation by a wireless or wired knitting method (see FIG. 5-2), or Next, with reference to FIGS. 6-1 to 6-3, arrange at least two bamboo strips with a length of 1050 - 2050 mm coated with the adhesive side by side in the width direction, and extend the bamboo strips by a wireless or wired alternating knitting method or other extension methods, or create a bamboo-strip blind of a size suitable for the production operation. Among them, FIG. 6-1 shows a bamboo-strip blind with a toothed extension and a wired alternating knitting method, FIG. 6-2 shows a bamboo-strip blind with an inclined surface extension and a wired alternating knitting method, and FIG. 6-3 shows a bamboo-strip blind with a conical extension and a wired alternating knitting method.

[0029] Next, referring to FIG. 7A, in step 10: Assemble the bamboo board semi-finished products from bottom to top according to the usage and size requirements of the product: First, the bottom lower surface layer 1 is a phenolic resin film, a melamine film, or a side pressure veneer of 2 mm or more. The second layer 2 is a woven bamboo curtain coated with the adhesive. The third layer 3 is the combined bamboo slices or the slatted bamboo slats of the skeleton structure layer. The fourth layer 4 is the combined bamboo slices or the slatted bamboo slats arranged horizontally or vertically in a direction different from that of the third layer 3. The fifth layer 5 is the same as the third layer 3. The sixth layer 6 is the same as the second layer 2. The upper surface layer 7 of the seventh layer is a phenolic resin film, a melamine film, or a side pressure veneer of 2 mm or more. Among them, apply bamboo powder adhesive to the third layer 3, the fourth layer 4, and the fifth layer 5 to obtain a bamboo board semi-finished product for a truck cargo bed with dimensions of L2000 - 10000 * W140 - 2100 * T12 - 50 mm. Step 11: According to the requirement of whether the surface of the product needs anti-slip, thermoform the bamboo board semi-finished product at a temperature of 130 - 160 °C under a pressure of 20 - 40 Kg / cm 2 to obtain a high-strength bamboo board regardless of whether there is a cooling process. According to the requirement of the product thickness, by repeatedly adding three structural layers such as the third layer, the fourth layer, and the fifth layer, the required product thickness can be achieved. At the same time, to increase the adhesion density between the combined bamboo slices or the slatted bamboo slats, increase the thickness of the combined bamboo slices, the woven bamboo curtain, or the slatted bamboo slats, and improve the strength of the product, apply bamboo powder mixed with adhesive to the third layer, the fourth layer, and the fifth layer respectively.

[0030] Next, referring to FIG. 8A, the high-strength bamboo board obtained in step 11 is processed by automatic intelligent equipment, and through deep processing such as cutting, sawing, shaving, and drilling, a high-strength bamboo floorboard for a truck cargo bed with dimensions of L2000 - 10000 × W140 - 2200 × T12 - 50 mm is manufactured. The performance of the product is shown in Appendix Table 1. The high-strength bamboo floorboard for the truck bed uses Moso bamboo with a diameter of 50 mm or more. This manufacturing method has solved the problem of high costs in the bamboo processing industry. It has the advantages of low cost, light density, high strength, making full use of bamboo powder, turning waste into treasure, and a short production cycle. It omits the conventional process of removing bamboo joints and the green and yellow parts of the bamboo surface. For the physical properties of the bamboo floorboard for the truck bed manufactured through the present invention, please refer to Appendix Table 1. The present invention uses bamboo as a substitute for wood and solves the problem that only side-pressed products could be manufactured in the conventional process.

Table 1

[0031] Second Embodiment The second embodiment is similar to the steps of the manufacturing method of the floorboard for the truck bed in the first embodiment, but the third and fifth layers are bamboo blinds in the shape of bamboo slats, and the fourth layer is a combined bamboo slice, which is different. The manufacturing method comprises the following steps: Step 1: Selection of raw materials: Use Moso bamboo with a bamboo age of 4 years or more and a diameter of 50 mm or more. The length is unlimited.

[0032] Hereinafter, referring to FIGS. 1 to 2, Step 2: Bamboo splitting: According to the optimal utilization rate of the Moso bamboo, the selected Moso bamboo is cut into Moso bamboo joints with a length of 500 to 6000 mm, and the Moso bamboo joints are cut into 2 to 4 equal-width bamboo slices using a slicer, and the bamboo slices and bamboo chips are collected. Or, The selected Moso bamboo is cut into Moso bamboo joints with a length of 1050 to 2050 mm, and cut into bamboo blind semi-finished products (ordinary process is bamboo blinds) with a width of 15 to 24 mm using a dedicated slicer, and the bamboo blind semi-finished products and bamboo chips are collected respectively.

[0033] Next, referring to FIG. 3, Step 3: Expand the bamboo slices of equal width with a length of 500 to 6000 mm in a dedicated rolling process. In this process, while expanding the bamboo slices, remove the green and yellow parts on the surface of the bamboo, set the thickness, and collect the bamboo slices and bamboo chips. Or, Roughly plane the semi-finished bamboo splints with a length of 1050 to 2050 mm and a width of 15 to 24 mm using a dedicated planer, remove the green and yellow parts on the surface of the bamboo. The roughly planed bamboo splints are collectively called bamboo splints, and collect the bamboo splints and bamboo chips. Step 4: In Step 2 and Step 3 above, crush the bamboo chips and defective bamboo slices and bamboo splints generated by machining to obtain powdery granular bamboo powder. Here, it is optional whether to perform degreasing treatment on the bamboo slices or bamboo splints, and antiseptic treatment is also optional. Step 5: The bamboo slices, bamboo splints, woven bamboo curtains, and bamboo powder are each dried by controlling the moisture content to 8 to 12% and the temperature to 50 to 70 °C.

[0034] Next, referring to FIGS. 4-1 to 4-3, Step 6: According to the size of the product, process the extensions of the dried bamboo slices and bamboo splints, and form a conical shape (see FIG. 4-1), a tooth shape (see FIG. 4-2), or an inclined surface (see FIG. 4-3) on the extensions. Step 7: Pour 1000 g of the dried bamboo powder and 400 to 700 g of the adhesive into a mixer respectively, mix well to obtain a bamboo powder adhesive, and prepare it as needed. Step 8: Apply the adhesive to two sides or four sides of the dried bamboo slices and bamboo splints, or dip the woven bamboo curtain into the adhesive to apply the adhesive. Next, referring to FIGS. 5-1 to 5-2, Step 9: Arrange at least two bamboo slices with a length of 500 to 6000 mm coated with the adhesive side by side in the width direction, and fix a cotton cloth tape with a width of 20 to 50 mm coated with the adhesive to the bamboo slices with resin nails or other nails (see FIG. 5-1), or use a wireless or wired weaving method to create a combined bamboo slice of a size suitable for production operations (see FIG. 5-2), or,

[0035] Hereinafter, with reference to FIGS. 6-1 to 6-3, at least two or more bamboo strips with a length of 1050 to 2050 mm coated with the adhesive are arranged side by side in the width direction, and the bamboo strips are extended by a wireless or wired alternating weaving method or other extension methods, or a bamboo blind in a size suitable for the production operation is created (see FIG. 6).

[0036] Hereinafter, with reference to FIG. 7B, Step 10: Assemble the bamboo board semi-finished product from bottom to top according to the requirements of product use and size: First, the bottom lower surface layer 1 is a phenolic resin film, a melamine film, or a side-pressure veneer of 2 mm or more, the second layer 2 is a wooden buffer layer with a thickness of 1 to 2.5 mm coated with an adhesive or the woven bamboo curtain, the third layer 3' is the bamboo blind in the form of a blind, the fourth layer 4' is the bamboo blind in the form of a blind in the horizontal or vertical direction arranged perpendicular to the third layer 3', the fifth layer 5' is the same as the third layer 3', the sixth layer 6 is the same as the second layer 2, and the upper surface layer of the seventh layer is a phenolic resin film, a melamine film, or a side-pressure veneer of 2 mm or more, to obtain a bamboo board semi-finished product of L2000-10000*W140-2100*T12-50 mm (see FIG. 7B). Step 11: According to the requirement of whether the surface of the product is anti-slip, the bamboo board semi-finished product is subjected to primary hot pressing at a temperature of 130 to 160 °C and a pressure of 20 to 40 Kg / cm 2 to obtain a high-strength bamboo board regardless of whether there is a cooling treatment. According to the requirement of the product thickness, by repeatedly adding three structural layers such as the third layer, the fourth layer, and the fifth layer, the required product thickness can be achieved. At the same time, to ensure the adhesion density between the combined bamboo slices or bamboo blinds in the form of a blind, a woven bamboo curtain is added, and a bamboo powder adhesive is applied to the third layer, the fourth layer, and the fifth layer respectively.

[0037] Hereinafter, with reference to FIG. 8B, the high-strength bamboo board obtained in Step 11 is processed by automatic intelligent equipment, and through deep processing such as cutting, sawing, shaving, and drilling, a bamboo floor board for a high-strength goods vehicle loading platform with a dimension of R is manufactured (see FIG. 8B). The performance of the product can also meet the requirements. Among them, the bamboo slices or bamboo slats obtained in Step 2 or Step 3 can be subjected to degreasing treatment and antiseptic treatment in order to improve the service life of the product and the structural stability.

[0038] The Third Embodiment The third embodiment uses the bamboo of the first embodiment as the raw material and is similar to the steps of the manufacturing method of the floor board for the truck bed including bamboo splitting and molding. However, the third layer and the fifth layer are combined bamboo slices, and the fourth layer is different from the slatted bamboo slats. The manufacturing method comprises the following steps: Step 1: Selection of raw materials: Use Moso bamboo with a bamboo age of 4 years or more and a diameter of 50 mm or more. The length is not limited.

[0039] Hereinafter, with reference to FIGS. 1 to 2, Step 2: Bamboo splitting: According to the optimal utilization rate of the Moso bamboo, the selected Moso bamboo is cut into Moso bamboo joints with a length of 500 to 6000 mm, and the Moso bamboo joints are cut into 2 to 4 equal-width bamboo slices using a slicer. The bamboo slices and bamboo chips are collected. Or, The selected Moso bamboo is cut into Moso bamboo joints with a length of 1050 to 2050 mm, and cut into bamboo slat semi-finished products (the general process is bamboo slats) with a width of 15 to 24 mm using a dedicated slicer. The bamboo slat semi-finished products and bamboo chips are collected respectively.

[0040] Hereinafter, with reference to FIG. 3, Step 3: The equal-width bamboo slices with a length of 500 to 6000 mm are expanded in a dedicated rolling process. In this process, while expanding the bamboo slices, the green and yellow parts on the surface of the bamboo are removed, the thickness is set, and the bamboo slices and bamboo chips are collected. Or, The bamboo slat semi-finished products with a length of 1050 to 2050 mm and a width of 15 to 24 mm are roughly planed using a dedicated planer, and the green and yellow parts on the surface of the bamboo are removed. The roughly planed bamboo slats are collectively called bamboo slats, and the bamboo slats and bamboo chips are collected. Step 4: In Step 2 and Step 3, the bamboo chips generated by machining, and the defective bamboo slices and bamboo slats are pulverized to obtain powdery granular bamboo powder. Here, degreasing treatment may or may not be performed on the bamboo slices or bamboo splints, and antiseptic treatment is also optional. Step 5: The bamboo slices, bamboo splints, woven bamboo curtains, and bamboo powder were each dried while controlling the moisture content to 8 - 12% and the temperature to 50 - 70°C.

[0041] Next, referring to FIGS. 4 - 1 to 4 - 3, Step 6: According to the size of the product, the extended parts of the dried bamboo slices and bamboo splints were processed to form a conical shape (refer to FIG. 4 - 1), a toothed shape (refer to FIG. 4 - 2), or an inclined surface (refer to FIG. 4 - 3) on the extended parts. Step 7: 1000 g of the dried bamboo powder and 400 - 700 g of an adhesive were each poured into a mixer and mixed well to obtain a bamboo powder adhesive, which is prepared as needed. Step 8: An adhesive was applied to two or four sides of the dried bamboo slices and bamboo splints, or the woven bamboo curtain was immersed in the adhesive and then the adhesive was applied.

[0042] Next, referring to FIGS. 5 - 1 to 5 - 2, Step 9: At least two bamboo slices with a length of 500 - 6000 mm coated with the adhesive were arranged side by side in the width direction according to the specifications of the product, and a cotton cloth tape with a width of 20 - 50 mm coated with the adhesive was fixed to the bamboo slices with resin nails (or other fixtures such as aluminum nails that do not damage other hot - pressing molds) (refer to FIG. 5 - 1), or by a wireless or wired knitting method (refer to FIG. 5 - 2) to create a combined bamboo slice of a size suitable for the production operation, or

[0043] Next, referring to FIGS. 6 - 1 to 6 - 3, at least two or more bamboo splints with a length of 1050 - 2050 mm coated with the adhesive were arranged side by side in the width direction, and the bamboo splints were extended by a wireless or wired alternating knitting method or other extension methods, or a bamboo splint in a bamboo blind shape of a size suitable for the production operation was created.

[0044] Next, referring to FIG. 7A, in step 10: Assemble the bamboo board semi-finished products from bottom to top according to the usage and size requirements of the product: First, the bottom lower surface layer 1 is a phenolic resin film, a melamine film, or a side pressure veneer of 2 mm or more. The second layer 2 is a wooden buffer layer with a thickness of 1-2.5 mm coated with an adhesive or the woven bamboo curtain. The third layer 3'' is the combined bamboo slices. The fourth layer 4'' is the slatted bamboo blinds arranged horizontally or vertically. The fifth layer 5'' is the same as the third layer 3''. The sixth layer 6 is the same as the second layer 2. The upper surface layer 7 of the seventh layer is a phenolic resin film, a melamine film, or a side pressure veneer of 2 mm or more, to obtain a bamboo board semi-finished product of L2000-10000*W140-2100*T12-50 mm (see FIG. 7C). Step 11: Depending on the requirement of whether the surface of the product is anti-slip, the bamboo board semi-finished product is hot-pressed and formed for the first time at a temperature of 130-160°C and a pressure of 20-40 Kg / cm 2 to obtain a high-strength bamboo board regardless of whether there is a cooling treatment. According to the requirement of the product thickness, by repeatedly adding three structural layers such as the third layer, the fourth layer, and the fifth layer, the required product thickness can be achieved. At the same time, to improve the adhesion density between the combined bamboo slices or the slatted bamboo blinds, increase the thickness of the combined bamboo slices, the woven bamboo curtain, or the slatted bamboo blinds, and improve the strength of the product, a bamboo powder adhesive mixed with an adhesive is applied to the third layer, the fourth layer, and the fifth layer respectively. By using these methods and plastic resin nails or other fixtures to fix the combination, a bamboo board semi-finished product with a size of L2000-10000*W140-2100*T12-50 mm can be obtained.

[0045] Next, referring to FIG. 8C, the high-strength bamboo board obtained in step 11 is processed by automatic intelligent equipment, and through deep processing such as cutting, sawing, shaving, and drilling, a high-strength bamboo floor board for a goods vehicle loading platform with finished product specifications is produced (see FIG. 8C). The product performance can also meet the requirements in Table 1. Also, for the second layer and the sixth layer in step 11, the woven bamboo curtain can be replaced with a wooden buffer layer with a thickness of 1-2.5 mm. The high-strength bamboo floorboard for the truck bed uses Moso bamboo with a diameter of 50 mm or more. This manufacturing and processing technology has solved the problem of high costs in the bamboo industry. It has the advantages of low cost, light density, high strength, making full use of bamboo powder, turning waste into treasure, and a short production cycle. It omits the conventional processes of removing bamboo joints and the green and yellow parts of the bamboo surface. For the physical properties of the bamboo floorboard for the truck bed manufactured through the present invention, refer to Appendix 1. The present invention uses bamboo as an alternative to wood, solving the problem that only side-pressed products could be manufactured in the conventional process, and its performance is shown in Appendix 1.

[0046] The Fourth Embodiment The fourth embodiment is similar to the steps of the manufacturing method of the floorboard for the truck bed in the first embodiment, but the assembly method of the semi-finished bamboo board is different. The semi-finished bamboo board is assembled in the order from bottom to top:: The bottom lower surface layer is a phenolic resin film, a melamine film, or a side-pressed single board of 2 mm or more. The second layer is a wooden buffer layer with a thickness of 0.8 mm or more arranged longitudinally or horizontally. The third layer is a woven bamboo curtain, a bamboo mat, or a combined bamboo slice coated with an adhesive arranged longitudinally or horizontally. The fourth layer is the same as the second layer. The fifth layer is the same as the third layer. According to the thickness of the product, the second layer and the third layer are repeatedly added. The last upper surface layer is a phenolic resin film, a melamine film, or a side-pressed single board of 2 mm or more, and a multi-layered bamboo board semi-finished product with a vertical and horizontal structure is obtained.

[0047] The Fifth Embodiment Manufacturing Method of Bamboo Products for Outdoor Use A manufacturing method of bamboo products for outdoor use including bamboo splitting and bamboo mat extension of bamboo materials, comprising the following steps:

[0048] Step 1: Selection and treatment of raw materials: 1) Select Moso bamboo that is over 4 years old and has a diameter of 50 mm or more. Cut it into Moso bamboo joints with a length of 1050 - 2050 mm, and then use a dedicated slicer to cut it into bamboo slices with a width of 15 - 32 mm. Remove the green and yellow parts on the surface of the bamboo and the bamboo branches with a planer on the bamboo slices, and set the width and thickness. The rough-cut bamboo strips are collectively called bamboo strips, 2) Next, referring to Figure 9, select rough-cut bamboo strips with specifications of length (L) * width (W) * thickness (T) of L (500 - 2050 mm) * W (15 - 25.5 mm) * T (4 - 15 mm). Apply pressure full-penetration anti-corrosion and anti-mold treatment to the rough-cut bamboo strips with carbonization degreasing or non-carbonization degreasing or precision-cut bamboo strips to obtain anti-corrosion bamboo strips. Among them, the conditions for anti-corrosion and anti-mold treatment are under a pressure of 10 - 20 kg, 3 with a chemical absorption amount of 250 - 450 kg / m, and complete it in a pressure-sealed anti-corrosion tank. The anti-corrosion device is shown in Figure 9 and follows the following operation procedures: 2.1) Calculate the volume according to the specifications of the bamboo strips, and calculate the usage amount and carrying capacity of the chemical solution according to the chemical absorption amount of 250 - 450 kg / m, 3 2.2) Inject the chemical solution into the metering tank 11 according to the usage amount of the chemical solution. 2.3) Open the high-pressure sealing switch 2, start the high-pressure sealing pump 3, and make the sealing pressure of the tank door of the anti-corrosion tank 1 reach 15 kg or more, and confirm that the anti-corrosion tank is completely sealed. 2.4) Open the overflow valve 4 of the anti-corrosion tank 1 and open the chemical solution supply pipe valve 5. 2.5) Start the chemical solution supply pump 6 and inject the chemical solution into the anti-corrosion tank 1 until the chemical solution overflows from the overflow valve. 2.6) Close the chemical solution supply valve 5 and close the overflow valve 4. 2.7) Open the high-pressure pipe valve 8, start the high-pressure pump 7, and when the immersion pressure reaches 2 - 4 kg, close the three-way valve 9 and switch the chemical solution supply three-way valve 10 to start using the chemical solution in the metering tank 11. 2.8) Keep the pressure of the anti-corrosion tank 1 at 13 - 20 kg until the high-pressure pump 7 injects all the chemical solution in the metering tank 11. 2.8) Keep the pressure of the anti-corrosion tank 1 at 13 - 20 kg until the high-pressure pump 7 injects all the chemical solution in the metering tank 11. 2.9) After the pressure holding time has elapsed, first open the chemical solution discharge valve 5, the chemical solution discharge three-way valve 10, and the overflow valve 4. Start the vacuum pump 12 to perform vacuum pumping until the pressure reaches 0. With the overflow valve 4 open, start the chemical solution discharge pump 6 to release the pressure. In this embodiment, since the chemical solution supply pipe and the chemical solution discharge pipe are the same, they are called the chemical solution supply valve 5, the chemical solution supply pump 6, and the chemical solution supply three-way valve 10 during supply, and are also called the chemical solution discharge valve 5, the chemical solution discharge pump 6, and the chemical solution discharge three-way valve 10 during discharge. 2.10) After the pressure release is completed, close the chemical solution discharge valve 5 and the chemical solution discharge three-way valve 10, and leave the overflow valve 4 open. 2.11) Open the door of the anti-corrosion tank 1 and push out the bamboo splints that have been subjected to anti-corrosion treatment. This operation step adopts a one-touch operation mode through intelligent design, and the automatic control module controls the high-pressure pump 7, the chemical solution supply / discharge pump 6, the vacuum pump 12, the chemical solution supply / discharge valve 5, the overflow valve 4, the opening and closing of the door of the anti-corrosion tank 1, and each temperature and pressure sensor in the anti-corrosion tank 1 respectively. According to the relationship between the input volume of the bamboo splints and the chemical solution absorption amount, the CPU calculates the pressurization, pressure holding, and decompression times, transmits commands through the automatic control module, and completes each step of Claim 1. This solves the complexity of the conventional operation steps, improves the accuracy of the chemical solution absorption amount and the working time, and enables safe and reliable operation.

[0049] Step 2, drying of bamboo splints: The bamboo splints obtained in 1) and 2) of Step 1 are stacked and placed in the drying chamber so as not to exceed the width of the drying shelf. An air duct with a width of 60 mm or more should be uniformly ensured between the stacks of bamboo splints, and the bamboo splints are stacked at a height of 30 to 50 layers. Temperature, humidity, and moisture content sensors are installed in the drying chamber. When the set temperature is 50 to 65 °C, the humidity is 30 to 35%, and the moisture content of the dried bamboo splints reaches 6 to 12%, the drying of the bamboo splints is completed. In Step 2, the sensor system for the temperature, humidity, and moisture content of the bamboo splints in the drying chamber automatically collects data and transmits it to the control module of the drying chamber. Using an automatic intelligent control system, the drying time is determined according to real-time data and the type of bamboo splints. When the moisture content of the bamboo splints reaches the set requirement, the system automatically switches to the constant temperature mode. After reaching the set constant temperature time, the drying chamber automatically stops the energy supply. The introduction of the intelligent drying control system prevents the bamboo splints from cracking or deforming during drying. Through constant temperature control and a reasonable stacking method, the uniformity of the moisture content of the bamboo splints is ensured, achieving energy conservation and carbon emission reduction.

[0050] Step 3: Precision planing of bamboo splints: Precision plane the rough bamboo splints in Step 1 to achieve a thickness tolerance of -0 / +5cc, a width tolerance of ±20cc, and control the moisture content to 6-12% to obtain precision planed bamboo splints.

[0051] Step 4: Selection of bamboo splints: Manually or using intelligent equipment, classify the precision planed bamboo splints obtained in Step 3 according to the following criteria to select bamboo splints: First grade: The depth of the end notch of the bamboo splint is 0-3mm, the width is 0-3mm, and the head and tail side hole depression defect is 0-15mm. Second grade: There is no crack at the end, the minimum side regarding the remaining yellow part of the bamboo exceeds 7mm, the length regarding the remaining yellow part of the bamboo is 0-50mm, there are no insect holes, and there is no mold. Third grade: The width regarding the remaining green part of the bamboo on the surface is 0-3mm, the depth of the end notch of the bamboo is 0-3mm, the width is 0-3mm, and the head and tail side hole depression defect is 0-15mm. Fourth grade: There is no crack, the minimum side of the width regarding the remaining yellow part of the bamboo is 0-1mm, and there is no length limit. Stack these different grades of bamboo splints 7 pieces / row, 10 layers each, insert a spacer, and stack 40 layers each on one pallet to classify the above different types of bamboo splints. The purpose and role of classification are to make it possible to maximize the utilization of all different grades of bamboo splints through technical processing, which is beneficial for significantly improving the utilization rate of raw materials.

[0052] Step 5: Intelligent elongation: According to the requirements of different products, the rough-cut bamboo slats in Step 1), the antiseptic bamboo slats in Step 1), the dried bamboo slats in Step 2), the precision-cut bamboo slats in Step 3), or the classified bamboo slats in Step 4) are directly subjected to the intelligent elongation process on an independently developed automated intelligent production line: Put the materials into the material storage tank, distribute the materials through the material distribution system, and include the following steps: 1. Processing: Process the extension parts of the bamboo slats so that they match each other, such as saw hooks / others, hook grooves / others, and control the height difference between the bamboo slats to 0.3 mm - 0.9 mm. 2. Automatic elongation of bamboo slats: Use a high-frequency hardening automatic elongation device or other elongation technologies to shift and elongate the bamboo slats, ensuring that the bamboo boards do not bend, the connecting parts do not shift, and they are flat. 3. Application of adhesive: Apply adhesive to the elongated bamboo slats, control the application amount of the adhesive to 80 - 140 g / m according to the requirements of different products, 2 and measure the viscosity of the adhesive to 50 S - 100 S using a viscosity meter Tu - 4 cup. 4. Assembly of bamboo board semi-finished products with reference to FIGS. 10A - 10B below: Arrange according to the length and width of the product, bind, and assemble the side pressure or flat pressure bamboo board semi-finished products with dimensions of L1000 - 12000 mm * W90 - 1300 mm * T4 - 32 mm, collectively referred to as bamboo board semi-finished products. Using an intelligent elongation line, process the joints where the extension parts are saw hooks, hook grooves, or others. Among them, by the material distribution system, any of the bamboo slats obtained in Steps 1 to 4 is put into the material distribution tank of the material supply system. The bamboo slats are supplied to the saw hooks corresponding to their respective material distribution tanks. Saw hooks, hook grooves, or other operations are performed according to the design requirements to process the joint structure. The joints are arranged and elongated by the elongation device. The elongated bamboo slats are supplied to the coating device for adhesive application. Then, they are pressed into a side pressure single-layer board as shown in FIG. 10A or a flat pressure single-layer board as shown in FIG. 10B. The single-layer board is supplied to the assembly device to assemble the bamboo board semi-finished products, and the semi-finished products of the bamboo board semi-finished product assembly are supplied to the binding device for binding.

[0053] In Step 5, manufacturing method of the flat-pressed or side-pressed single-layer board of bamboo splints: The side pressure is 20 - 40 kg / cm 2 , the flat pressure is 12 - 25 kg / cm 2 . Set the temperature to 130 - 160 °C, the curing time to 18 - 30 minutes, and perform hot pressing and molding under these conditions to manufacture a single-layer board with a single-layer structure of size L1000 - 12000 m * W90 - 1300 mm * T4 - 25 mm (see Figure 10). This invention has solved the problems of a large amount of labor, difficulty in employment, and high labor costs in the conventional process. By using the intelligent extended production line, when producing 2500 cubic meters of products per month, it is possible to replace 80 workers, reduce the area of the production site by about 40% at the same time, and significantly shorten the production cycle. As a result, the quality of the products is stabilized and improved. This production line is an advanced and highly efficient production system.

[0054] Step 6: Setting the multi-sided width of the single-layer board: Assemble the semi-finished bamboo board with an intelligent assembly device for the single-layer board: 1) Size setting according to size requirements: Use a multiple-sizer device or a four-side planer device to set the multi-sided width of the single-layer board, or precisely plane the four sides and set the size of the width and thickness, 2) Sliced board processing according to product requirements: Cut the sliced board from the single-layer board with a slicer, and control the thickness error of the sliced board within ±0.15 mm, 3) Thickness setting of the sliced board: Control the uniformity of the sliced board within 0.3 mm with or without polishing, 4) Apply adhesive to the sliced board and other materials with an application device. The viscosity of the adhesive is 70S - 100S, and the application amount is 120 g / m 2 or more. 5) Transfer the sheet board and other materials coated with adhesive to the semi-finished bamboo board assembly process, 6) Placement and assembly according to the size and requirements of the product: Using sheet board materials coated with adhesive, bamboo slices, single-layer boards, filamentous bamboo curtains, bamboo curtains woven with or without wires with a thickness of 1 mm or more, wooden veneers, glass fibers, melamine films, and phenolic resin film coating materials, arrange them according to the structure in the vertical direction, horizontal direction, or vertical and horizontal intersection. At the same time, fix them with plastic resin nails, aluminum nails, or other fixing members to assemble a thermocompression semi-finished product with a multi-layer vertical and horizontal structure (collectively called a bamboo board semi-finished product). The size is L2000 - 12000MM * W90 - 2100MM * T10 - 200MM.

[0055] The intelligent assembly device used in Step 6 can assemble bamboo board semi-finished products with multi-layer structures through automatic bamboo identification, automatic placement, and automatic binding. Furthermore, in 6) of Step 6, arrange them according to the structure in the vertical direction, horizontal direction, or vertical and horizontal intersection either by the intelligent assembly device or manually. At the same time, fix them with plastic resin nails, aluminum nails, or other fixtures to assemble a thermocompression semi-finished product (bamboo board semi-finished product) with a multi-layer vertical and horizontal structure. The size is L2000 - 12000mm * W90 - 2100mm * T10 - 200mm. This automated production line can replace 40 workers when producing 2500 cubic meters of products per month, save more than 35% of the production site area, greatly reduce manufacturing costs, improve production capacity, and ensure quality stability.

[0056] Step 8: Referring to FIGS. 12A - 12C below, hot pressing of the bamboo board semi-finished product: Using a hot pressing device, under the conditions of a temperature of 130 - 160°C, a main pressure of 20 - 40 kg / cm 2 or a side pressure of 20 - 40 kg / cm 2 , and a curing time of 15 - 60 minutes, hot press a multi-layer bamboo board of the set size. The multi-layer bamboo board is shown in FIG. 12. FIG. 12A shows a multi-layer bamboo board with two core layers, FIG. 12B shows a multi-layer bamboo board with three core layers, and FIG. 12C shows a multi-layer bamboo board with five core layers. The hot pressing of the product can be carried out either by one-time hot pressing or in two steps. Also, in order to shorten the process time, after hot pressing, it is possible to use a cooling device for cooling or adopt natural cooling.

[0057] Step 9: Next, referring to FIG. 11, the multi-layer bamboo board is finished through the finishing device for bamboo products as shown in FIG. 11 according to the following steps: 1. Use a four-sided planer device or a polishing device to plane and polish the surface. 2. Size setting: Cut the four sides according to the size requirements of the product. 3. Finishing: According to the specifications of the product, use a fully automatic intelligent production line for deep processing finishes such as sawing, cutting, drilling, chamfering, grooving, etc. Among them, the finishing device for bamboo products is shown in FIG. 11, and the finishing device 60 sequentially includes the following: the multi-layer bamboo board is finished through the three-legged heavy gantry loader 61, intelligent unpaneling roller table 62, roller table 63, double milling with vertical saw and milling function 64, 4m roller table 65, horizontal connection roller table 66, double milling with vertical sawing function 67, intelligent sheet collecting roller table 68, and is conveyed by the side gantry feeder 69. The multi-layer bamboo board includes two-layer boards, three-layer boards and five-layer boards (see FIG. 12). In addition, in the finishing of step 9(3), a planing intelligent production line can be used to continuously finish the multi-layer bamboo board. This solves the problems of complex and precise processing. At the same time, it is possible to improve work efficiency and significantly reduce manual labor. The finishing device for bamboo products is a planing intelligent production line.

[0058] Step 10: According to the requirements of the product, apply anti-corrosion and anti-mildew treatment to the surface layer of the multi-layer bamboo board, and adopt different treatment methods for different products, using the dipping method or the vacuum negative pressure one-touch operation method. In the dipping method in Step 10, the dipping device includes a dipping tank, and above the dipping tank, there is a crimping device driven by a lifting mechanism. When the multi-layer bamboo board is completely or partially immersed in the dipping tank, a downward pressure is applied to the multi-layer bamboo board by the crimping device. The antiseptic and antifungal agent is put into the dipping tank according to the measurement, the required volume is calculated according to the product specifications, and the chemical solution usage and the carrying capacity are calculated according to the chemical solution absorption amount required by the product requirements. The chemical solution is injected into the metering tank according to the chemical solution usage, and the intelligent device automatically adds the amount of the chemical solution according to the volume of the multi-layer bamboo board. In addition, the dipping device is equipped with a dust-proof device to prevent dust from entering the dipping tank. In Step 10, it is also possible to use an antiseptic device. In the intelligent operation method, the operation procedure is intelligently designed. By realizing the one-touch operation mode, it solves the complexity of the conventional operation procedure, improves the accuracy of the chemical solution absorption amount and the working time, and ensures the safety and reliability of the work. Each process of the present invention can utilize intelligent design. For example, in intelligent drying, the product is stacked on a dedicated stacking drying rack and dried in an intelligent drying chamber. The temperature, humidity, moisture content, and time are controlled by an automatic intelligent control system. It is set to 50 - 65°C ± 5°C for temperature and 30 - 35% ± 5% for humidity according to different types of products. After drying, the moisture content of the product is controlled within 12%. After the moisture content of the product reaches the set conditions, it automatically switches to a constant temperature system. When the set constant temperature time is reached, the drying chamber automatically stops the energy supply. The intelligent temperature control system ensures that the product is less likely to crack or deform during drying, and achieves energy conservation and emission reduction. By a reasonable stacking method, it suppresses energy consumption while ensuring the uniformity of the moisture content. In intelligent inspection, the dried product is scanned by an intelligent inspection device through an inspection conveyor line, accurately detects the locations that need repair, and quickly performs on-line repair. This improves the work efficiency and quality.

[0059] Step 11: Painting The painting of the multi-layer bamboo board comprises the following steps: 1. Automatic supply: Automatically supply from the material storage tank, 1737351371129_0 and perform. Also, according to the requirements of different products, use an automatic heating control system to select whether to heat the product before painting. 2. Painting by roller, spray, or brush book, 3. Convey to the drying warehouse: The painted product is automatically conveyed to the drying storage warehouse, The manufacturing method of the present invention can be applied to an intelligent production line, and it is possible to operate multiple devices by one person or perform multiple processes by one person. As a result, it can be converted from a conventional labor-intensive industry to intelligent production, promoting standardized production, realizing the uniformity of product quality, improving work efficiency, and reducing operation costs. Compared with the conventional method, when producing 2500 cubic meters of products per month, the present invention can save about 137 labor costs and reduce the usage area of the production site by more than 35%. The production cycle is also shortened from the conventional 26 days and 18 days to 15 days and 7 days, thus making the era of low production capacity and high cost a thing of the past. The physical properties of the outdoor bamboo products manufactured by the present invention are shown in Appendix Table 2. The present invention realizes high output with less investment and has opened up an era of high production efficiency. As a result, it is possible to provide competitive indoor and outdoor bamboo products to enterprises in industries such as the industrial and construction industries, supply high-quality bamboo products at low prices worldwide, and truly open up a new era of using bamboo instead of wood.

Table 2

Claims

1. A manufacturing method of a floor board for a truck bed using bamboo as a raw material, including bamboo splitting and shaping, characterized in that it comprises at least the following steps: Step 1: Selection of raw materials: Use Moso bamboo with a bamboo age of 4 years or more and a diameter of 50 mm or more. Step 2: Bamboo splitting: Cut the Moso bamboo into Moso bamboo joints with a length of 500 - 6000 mm, and use a slicer to cut the Moso bamboo joints into 2 - 4 equal-width bamboo slices, and collect the bamboo slices and bamboo chips, or / and, Cut the Moso bamboo into Moso bamboo joints with a length of 1050 - 2050 mm, and use a slicer to cut it into semi-finished bamboo strips with a width of 15 - 24 mm, and collect the semi-finished bamboo strips and bamboo chips. Step 3: Expand the equal-width bamboo slices with a length of 500 - 6000 mm in a rolling process, remove the green and yellow parts on the surface of the bamboo, set the thickness, and collect the bamboo slices and bamboo chips, or, Use a planer to rough-machine the semi-finished bamboo strips with a length of 1050 - 2050 mm and a width of 15 - 24 mm to remove the green and yellow parts and bamboo joints on the surface of the bamboo, and at the same time set the thickness or width and thickness to obtain bamboo strips, and collect the bamboo strips and bamboo chips. Step 4: Crush the bamboo chips, defective bamboo slices, and defective bamboo strips obtained in Step 2 and Step 3 to obtain powdery granular bamboo powder. Step 5: Dry the bamboo slices, bamboo strips, bamboo powder, and woven bamboo curtain to a moisture content of 8 - 12%. The woven bamboo curtain is woven with bamboo slices with a thickness of 1 mm or more using wires. Step 6: Process the extensions of the dried bamboo slices and bamboo strips to form a conical shape, tooth shape, or inclined surface on the extensions. Step 7: Pour 1000 g of the dried bamboo powder and 400 - 700 g of an adhesive into a mixer respectively, and mix well for later use. Step 8: Apply the adhesive to two sides, three sides, or four sides of the dried bamboo slices and bamboo strips, or, Apply the adhesive to the woven bamboo curtain by dipping or roller coating method. Step 9: Arrange at least 2 bamboo slices with a length of 500 - 6000 mm coated with the adhesive side by side in the width direction, and fix the cotton tape with a width of 20 - 50 mm coated with the adhesive to the bamboo slices with resin nails or other fixtures, or combine the bamboo slices into a size suitable for production operation by a wireless or wired weaving method, or, Arrange at least two or more bamboo slats with a length of 1050 - 2050 mm coated with the adhesive side by side in the width direction, and extend the bamboo slats by a wireless or wired alternating weaving method or other extension methods, or create a bamboo blind-shaped bamboo slat of a size suitable for production operations. Step 10: Assemble the bamboo board semi-products from bottom to top: First, the bottom lower surface layer is a phenolic resin film, a melamine film, or a side-pressure veneer of 2 mm or more. The second layer is the woven bamboo curtain coated with the adhesive. The third layer is the combined bamboo slices or the bamboo blind-shaped bamboo slat. The fourth layer is the combined bamboo slices arranged horizontally or vertically, the bamboo blind-shaped bamboo slat. The fifth layer is the same as the third layer. The sixth layer is the same as the second layer. The upper surface layer of the seventh layer is a phenolic resin film, a melamine film, or a side-pressure veneer of 2 mm or more. At least seven layers of bamboo board semi-products are obtained. Step 11: According to the requirement of whether the surface of the product is anti-slip, perform primary hot pressing on the bamboo board semi-finished product at a temperature of 130 to 160 degrees and a pressure of 20 to 40 Kg / cm 2 to obtain a high-strength bamboo board.

2. The method for manufacturing a floorboard for a truck bed according to Claim 1, wherein the bamboo slices or bamboo slats obtained in Step 2 or Step 3 are degreased.

3. The method for manufacturing a floorboard for a truck bed according to Claim 1 or 2, wherein the bamboo slices or bamboo slats obtained in Step 2 or Step 3 are subjected to anti-corrosion treatment.

4. The method for manufacturing a floorboard for a truck bed according to Claim 1, wherein in Step 5, the drying temperature is controlled at 50 - 70°C, and the bamboo slices, bamboo slats, and woven bamboo curtain with bamboo powder are dried to a moisture content of 8 - 12%.

5. The method for manufacturing a floorboard for a truck bed according to Claim 1, wherein in Step 10, according to the requirement of the product thickness, the structural compositions of the third, fourth, and fifth layers are repeatedly added to reach the product thickness.

6. The method for manufacturing a floorboard for a truck bed according to Claim 1 or 5, wherein in Step 10, bamboo powder mixed with an adhesive is respectively applied to the third, fourth, and fifth layers, and the above method and plastic resin nails or other fixtures are used to combine bamboo board semi-products of L2000 - 10000*W140 - 2100*T12 - 50 mm.

7. The method for manufacturing a floorboard for a truck bed according to Claim 1 or 5, wherein in Step 11, a high-strength bamboo floorboard is subjected to deep processing such as cutting, sawing, shaving, and drilling to manufacture a high-strength product of L2000 - 10000xW140 - 2200xT12 - 50 mm.

8. The manufacturing method of the floorboard for a truck bed according to claim 1, wherein the second and sixth woven bamboo curtains in the step 11 are replaced with a wooden buffer layer having a thickness of 1 to 2.5 mm.

9. A floorboard for a truck bed obtained by the manufacturing method of the floorboard for a truck bed according to any one of claims 1 to 8.

10. The floorboard for a truck bed according to claim 9, wherein the floorboard includes the following components in order from bottom to top: the bottom surface layer is a phenol resin film, a melamine film, or a side pressure veneer of 2 mm or more; the second layer is a woven bamboo curtain coated with an adhesive; the third layer is a combination of bamboo slices or bamboo blinds in a lattice structure; the fourth layer is a combination of bamboo slices or bamboo blinds arranged horizontally or vertically; the fifth layer is the same as the third layer; the sixth layer is the same as the second layer; the upper surface layer of the seventh layer is a phenol resin film, a melamine film, or a side pressure veneer of 2 mm or more.

11. The floorboard includes the following components in order from bottom to top: The bottom surface layer is a phenol resin film, a melamine film, or a side pressure veneer of 2 mm or more; The second layer is a wooden buffer layer with a thickness of 0.8 mm or more arranged horizontally or vertically; The third layer is a woven bamboo curtain, a bamboo blind, or a combination of bamboo slices coated with an adhesive arranged horizontally or vertically; The fourth layer is the same as the second layer; The fifth layer is the same as the third layer; According to the thickness of the product, the second and third layers are repeatedly added. The last upper surface layer is a phenol resin film, a melamine film, or a side pressure veneer of 2 mm or more, and a semi-finished bamboo board with a multi-layer vertical and horizontal structure is obtained. The floorboard for a truck bed according to claim 9.

12. A manufacturing method of an outdoor bamboo product, which is characterized by performing a pressure full penetration anti-corrosion and anti-mildew treatment on bamboo blinds, single-layer boards, multi-layer boards, or bamboo boards with a surface layer. The manufacturing method of the floorboard for a truck bed according to claim 3 includes the following steps: 1) Calculate the volume according to the specifications of bamboo higo, and calculate the usage amount and loading capacity of the chemical solution according to the chemical solution absorption amount of 250 to 450 kg / m 3 and calculate the usage amount and loading capacity of the chemical solution according to the chemical solution absorption amount of 250 to 450 kg / m 2) Inject the chemical solution into the metering tank according to the usage amount of the chemical solution. 3) Open the high-pressure sealing switch, start the high-pressure sealing pump, ensure that the sealing pressure of the tank door of the anti-corrosion tank is 15 kg or more, and confirm that the anti-corrosion tank is completely sealed. 4) Open the overflow valve of the anti-corrosion tank and open the chemical solution supply pipe valve. 5) Start the chemical solution supply pump and inject the chemical solution into the anti-corrosion tank until the chemical solution overflows from the overflow pipe through the overflow valve. 6) Close the chemical solution supply valve and close the overflow valve. 7) Open the high-pressure pipeline valve, start the high-pressure pump, and when the immersion pressure reaches 2-4 kg, close the three-way valve and switch the chemical liquid supply three-way valve to start using the chemical liquid in the metering tank. 8) Keep the pressure in the anti-corrosion tank at 13-20 kg until the high-pressure pump injects all the chemical liquid in the metering tank. 9) After the pressure holding time has elapsed, first open the valve of the chemical liquid discharge pipeline and the overflow valve, start the vacuum pump to evacuate until the pressure becomes 0, and with the overflow valve open, start the chemical liquid discharge pump. When the chemical liquid supply pipeline and the chemical liquid discharge pipeline are the same, it is called the chemical liquid supply pump during supply and the chemical liquid discharge pump during discharge. 10) After the pressure release is completed, close the valve of the chemical liquid discharge pipeline and keep the overflow valve open. 11) Open the door of the anti-corrosion tank and push out the bamboo whisks that have been anti-corrosion treated.

13. A method for manufacturing outdoor bamboo products according to claim 12, characterized by comprising the following steps: Intelligent extension step: Extend the dried bamboo whisks onto the intelligent extension production line, put the materials into the material storage tank according to the requirements of different products, and distribute the materials through the material distribution system. The extension process comprises the following steps:

1. Processing of the extension part: Process the extension parts of the bamboo whisks such as saw hooks / others, hook grooves / others to match each other, and control the height difference between the bamboo whisks to 0.3 mm - 0.9 mm.

2. Automatic extension: Use a high-frequency hardening automatic extension device or other extension devices to shift and extend the bamboo whisks to ensure that the bamboo boards do not bend, the connecting parts do not shift, and they are flat.

3. Application of adhesive: Apply the adhesive to the extended bamboo strips, control the application amount of the adhesive to 80-140 g / m 2 and control the viscosity of the adhesive to 50S-100S.

4. Automatically assemble the semi-finished bamboo boards: According to the design requirements of the product, use the automatic intelligent semi-finished bamboo board assembly device to assemble the side-pressed or flat-pressed semi-finished bamboo boards with dimensions of L1000 - 12000 mm * W90 - 1300 mm * T4 - 32 mm, including automatic identification, automatic placement, and automatic binding.

14. A method for manufacturing outdoor bamboo products according to claim 13, characterized in that the single-layer board is finished on the planing intelligent production line, and comprises the following steps: 1) Size setting according to size requirements: Use a multiple sizing device or a four-sided planing device to set the multi-sided width of the single-layer board, or precisely plane the four sides to set the width and thickness sizes. 2) Slicing board material processing according to product requirements: The single-layer board is sliced by a slicer to cut into multiple sliced board materials, controlling the speed at 15 m / min and controlling the thickness error of the sliced board materials within ±0.15 mm. 3) Thickness setting of sliced board materials: Grinding to control the uniformity of the sliced board materials within 0.3 mm. 4) Apply an adhesive to the sliced board material and other materials using a coating device, with the application amount of the adhesive being 120 g / m 2 or more, and the viscosity of the adhesive being 70 S - 100 S, 5) Automatically transfer the sliced board materials coated with adhesive and other materials to the material storage tank in the semi-finished bamboo board assembly process. 6) Assembly of semi-finished bamboo boards: Arrange and assemble according to the size and requirements of the product. At least one of the sliced board materials coated with adhesive, bamboo slices, single-layer boards, bamboo curtains, woven bamboo curtains, wooden veneers, glass fibers, melamine films, and phenolic resin films is arranged by an intelligent automatic assembly device or manually according to the structure of vertical, horizontal, or vertical and horizontal intersections. At the same time, fix with plastic resin nails, aluminum nails, or other fixtures to assemble a thermo-pressed semi-finished product with a multi-layer vertical and horizontal structure, and the size is L2000 - 12000MM * W90 - 2100MM * T10 - 200MM.

15. A manufacturing method of outdoor bamboo products according to Claim 13, characterized by assembling the semi-finished bamboo boards in step 6) according to the usage requirements and size requirements of the product, comprising the following steps: The bottom lower surface layer is a phenolic resin film, a melamine film, or a side pressure veneer of 2 mm or more. The second layer is a wooden buffer layer with a thickness of 1 to 2.5 mm or a woven bamboo mat coated with an adhesive arranged vertically. The third layer is a combined bamboo slice or a bamboo mat woven with a bamboo curtain arranged vertically. The fourth layer is a combined bamboo slice arranged horizontally or vertically, a bamboo curtain woven with a bamboo curtain or a wooden buffer layer of 2.5 mm or more, glass fiber, or a woven bamboo mat. The fifth layer is the same as the third layer, the sixth layer is the same as the second layer, and the upper surface layer of the seventh layer is a phenolic resin film, a melamine film, or a side pressure veneer of 2 mm or more. According to the thickness of the product, three structural layers such as the third layer, the fourth layer, and the fifth layer are repeatedly added to achieve the required product thickness. At the same time, to improve the adhesion density between the combined bamboo slices or the bamboo curtains woven with bamboo curtains, and to increase the thickness of the combined bamboo slices, the woven bamboo mats, or the bamboo curtains woven with bamboo curtains to improve the strength of the product, bamboo powder mixed with an adhesive is respectively applied to the third layer, the fourth layer, and the fifth layer. These methods are fixed with plastic resin nails or other fixtures to obtain a semi-finished bamboo board with a size of L2000 - 10000 * W140 - 2100 * T12 - 50 mm.

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