A method for processing bamboo boards

Abstract

The present application relates to the technical field of bamboo plywood, and particularly relates to a bamboo board processing method, which comprises the following steps: processing the bamboo into block-shaped base bamboo strips; forming matched grooves and convex strips on the two sides of the base bamboo strips respectively; uniformly distributing a plurality of holes along the length direction; splicing the bamboo boards after soaking the resin; forming channels after aligning the holes; passing the heating wires in the channels and extending the two ends of the heating wires out of the channels; re-shaping each channel by heating the heating wires and cleaning part of the melted resin; the bamboo boards are connected by using the width direction of the bamboo strips, the thickness is minimum, and the finally formed bamboo plywood is more portable; the heating wires are set, the part of the resin in the heat exchange channels is partially melted by heating the heating wires, and the heat exchange channels are reshaped by cleaning, and the residual resin can form the connecting effect, the supporting effect and the channel effect.

Description

Technical Field

[0001] This invention relates to the field of bamboo plywood technology, and more specifically to a method for processing bamboo plywood. Background Technology

[0002] Currently, bamboo plywood, made from bamboo, is increasingly used in homes, offices, and other places. However, bamboo plywood used in homes and offices is relatively thin. While it feels cool to the touch in summer, it gets hot quickly when in contact with skin, making it difficult to touch in winter. Cushions and pillows are needed to protect the skin from irritation, making bamboo products particularly impractical in winter. To avoid this, heaters or coolers need to be installed at the bottom of the bamboo plywood. To prevent exposed pipes, plywood or other coverings must be installed over the pipes to prevent burns or frostbite. This further increases the size and weight of the bamboo plywood, reducing its convenience. The reason for installing heaters or coolers at the bottom of bamboo plywood is that bamboo plywood in homes, offices, and other places is relatively thin, wide, and long, making it difficult to install pipes inside. The main reason is the difficulty in processing. Existing drill bits are too long and are prone to bending and breaking. Therefore, most existing drill bits are less than 30cm, making it difficult to drill long and thin holes in one go (because the bamboo is too thin), resulting in a high scrap rate and easy failure of the drill bits.

[0003] Therefore, a bamboo board processing method is needed that can avoid excessive weight while ensuring mechanical properties and temperature regulation functions. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a bamboo board processing method that can avoid excessive weight while ensuring mechanical properties and temperature regulation function.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A method for processing bamboo boards includes:

[0007] Step S1: Cut the bamboo horizontally into sections, mill off the outer and inner nodes, and then longitudinally split it into multiple arc-shaped bamboo strips. Steam and soften the bamboo strips, heat and press them to unfold them into a flat surface, and process them into block-shaped basic bamboo strips through double-sided planing. The basic bamboo strips have length, width and thickness directions, and the length of the basic bamboo strips is greater than the width and the thickness is greater than the thickness.

[0008] Step S2: Heat and shape the basic bamboo strip in the mold and remove the moisture to obtain dry bamboo strip; process mating grooves and protrusions on both sides of the width direction of the dry bamboo strip to form a mating groove; the dry bamboo strip has multiple channels evenly distributed along its length direction, and the channels are set along the width direction and penetrate the dry bamboo strip.

[0009] Step S3: Place the dry bamboo strips into a resin soaking tank, and keep the temperature of the soaking tank above 50°C; and after the dry bamboo strips are soaked in resin, splice them to form a bamboo board. The splicing includes: the mating grooves and protrusions of adjacent dry bamboo strips to connect the two dry bamboo strips. When splicing, all the holes of all the dry bamboo strips are aligned. After the holes are aligned, a channel is formed. A heating wire passes through the channel and both ends of the heating wire extend out of the channel.

[0010] Step S4: Hot-press the bamboo board containing the heating wire, hot-pressing in both the width and thickness directions; after hot-pressing, heat the heating wire by turning on it, and at the same time clean out some of the melted resin to reshape each channel; after reshaping, turn off the power and remove the heating wire to form a heat exchange channel; seal both ends of each heat exchange channel, and open an inlet and an outlet on the lower surface of the bamboo strips on both sides of the bamboo board corresponding to the heat exchange channel;

[0011] Step S5: Use a temperature control machine to adjust the temperature of the bamboo plywood. The temperature control machine includes a circulation inlet and a circulation nozzle. The circulation inlet is connected to the outlet, and the circulation nozzle is connected to the inlet to obtain bamboo plywood.

[0012] Preferably, the heating wire passes through the channel with both ends of the heating wire extending out of the channel, and the heating wire is taut at the same time.

[0013] Preferably, the convex strip is a T-shaped convex strip, and the mating groove is a T-shaped groove.

[0014] Preferably, the soaking tank has a cover plate. After the dry bamboo strips are placed in the soaking tank, the cover plate is put on and pressure is applied until the resin penetrates into the dry bamboo strips. Then the pressure is released. After the pressure is released, the cover plate is opened, and the resin-impregnated dry bamboo strips are spliced ​​together in the soaking tank to form a bamboo board.

[0015] Preferably, the inner wall of the heat exchange channel is polished after the bamboo board has cooled to room temperature.

[0016] Preferably, the bamboo board is cut into a predetermined shape after the heat exchange channel is formed;

[0017] If there are still grooves and / or protrusions on both sides of the width direction of the bamboo board after cutting, the grooves will be filled and / or the protrusions will be removed.

[0018] Preferably, after cutting, both ends of each heat exchange channel are sealed, and after sealing, the cut and sealed areas are recoated with resin.

[0019] Preferably, after recoating with resin and allowing it to dry completely, the surface of the bamboo board is polished.

[0020] Preferably, the output temperature range of the temperature controller is 5℃-40℃.

[0021] Preferably, the moisture content of the dried bamboo strips is less than 5%.

[0022] The beneficial effects of this invention are as follows: by connecting bamboo strips along their width to form bamboo boards with minimal thickness, the final bamboo plywood is made lighter; assembly and splicing via a resin-containing soaking tank at a temperature above 50°C ensures that the joints between the dry bamboo strips are bonded with resin, and the resin is also injected into the pores to maintain the mechanical properties of the bamboo board. Simultaneously, as the resin cools to room temperature (typically 26°C, and rarely exceeding 40°C), it shrinks, creating a pre-tension force that provides support; furthermore, the heating wire design... The process involves heating the resin within the heat exchange channels by an electric current, partially melting and cleaning it to reshape the channels. The remaining resin acts as a connector, support, and channel. By sealing both ends of the heat exchange channels and creating inlets and outlets, a temperature controller is connected, allowing each channel to be heated or cooled. This achieves temperature control for the bamboo plywood, ensuring a clean exterior without adding extra weight. The result is a thin, lightweight bamboo plywood that is also resistant to cracking after temperature stability, meeting the comfort requirements for both winter and summer. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a bamboo plywood obtained by a bamboo board processing method according to a specific embodiment of the present invention;

[0024] Figure 2 for Figure 1 Partial disassembly diagram;

[0025] Labeling explanations: 1. Length direction; 2. Width direction; 3. Thickness direction; 4. Groove; 5. Protrusion; 6. Channel; 7. Inlet; 8. Outlet; 9. Seal. Detailed Implementation

[0026] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] Please refer to Figure 1 as well as Figure 2A method for processing bamboo boards, comprising:

[0028] Step S1: Cut the bamboo horizontally into sections, mill off the outer and inner nodes, and then longitudinally split it into multiple arc-shaped bamboo strips. Steam and soften the bamboo strips, heat and press them to unfold them into a flat surface, and process them into block-shaped basic bamboo strips through double-sided planing. The basic bamboo strips have a length direction 1, a width direction 2 and a thickness direction 3, and the length of the basic bamboo strips is greater than the width and the thickness is greater than the thickness.

[0029] Step S2: Heat and shape the basic bamboo strip in the mold and remove the moisture to obtain dry bamboo strip; respectively process mating grooves 4 and protrusions 5 on both sides of the width direction 2 of the dry bamboo strip; the dry bamboo strip has multiple channels 6 evenly distributed along the length direction 1, and the channels 6 are set along the width direction 2 and penetrate the dry bamboo strip.

[0030] Step S3: Place the dry bamboo strips into a resin soaking tank, and keep the temperature of the soaking tank above 50°C; and after the dry bamboo strips are soaked in resin, splice them to form a bamboo board. The splicing includes: the mating grooves 4 and protrusions 5 of adjacent dry bamboo strips to connect the two dry bamboo strips. When splicing, all the holes 6 of all the dry bamboo strips are aligned. After the holes 6 are aligned, a channel is formed. The heating wire passes through the channel and both ends of the heating wire extend out of the channel.

[0031] Step S4: Hot-press the bamboo board containing the heating wire, hot-pressing in both the width direction 2 and the thickness direction 3; after hot-pressing, heat the heating wire by turning on it, and at the same time clean out some of the melted resin to reshape each channel; after reshaping, turn off the power and remove the heating wire to form a heat exchange channel; seal both ends of each heat exchange channel 9, and open an inlet 7 and an outlet 8 on the lower surface of the bamboo strips on both sides of the bamboo board corresponding to the heat exchange channel, respectively.

[0032] Step S5: Use a temperature control machine to adjust the temperature of the bamboo plywood. The temperature control machine includes a circulation inlet and a circulation nozzle. The circulation inlet is connected to the outlet 8, and the circulation nozzle is connected to the inlet 7 to obtain bamboo plywood.

[0033] As described above, by connecting bamboo strips along their width (2) to form bamboo boards with minimal thickness, the final bamboo plywood is made lighter. Assembling and splicing the bamboo strips in a resin-filled soaking tank at a temperature above 50°C ensures that the joints between the dry bamboo strips are bonded with resin. Resin is also injected into the channels (6) to maintain the mechanical properties of the bamboo board. As the resin cools to room temperature (typically 26°C, and rarely exceeding 40°C), it contracts, creating a pre-tension force that provides support. Combined with the heating wire... By heating with electricity, the heating wire partially melts and cleans the resin inside the heat exchange channel, thus reshaping the heat exchange channel. At the same time, the remaining resin can form a connection, support, and channel function. By sealing both ends of the heat exchange channel (9) and opening the inlet (7) and outlet (8), and then connecting the temperature controller, each heat exchange channel can be heated or cooled, thereby meeting the temperature control requirements of bamboo plywood. This ensures external cleanliness without adding extra weight, achieving thinness and lightness while maintaining stable temperature and preventing cracking. It is a bamboo plywood that meets the comfort requirements in both winter and summer.

[0034] Furthermore, a heating wire is passed through the channel with both ends of the heating wire extending out of the channel, and the heating wire is taut at the same time.

[0035] As can be seen from the above description, by straightening the heating wire, it can be ensured that the channel formed by the heating wire in the end is straight, avoiding the bending of the heat exchange channel, which would lead to increased airflow resistance and increased power consumption.

[0036] Furthermore, the protrusion 5 is a T-shaped protrusion 5, and the mating groove 4 is a T-shaped groove.

[0037] Furthermore, the soaking tank has a cover plate. After the dry bamboo strips are placed in the soaking tank, the cover plate is installed and pressure is applied until the resin penetrates into the dry bamboo strips. Then, the pressure is released. After the pressure is released, the cover plate is opened, and the resin-impregnated dry bamboo strips are spliced ​​together in the soaking tank to form a bamboo board.

[0038] As can be seen from the above description, pressure soaking can ensure that the resin penetrates into the dry bamboo strips, thus ensuring the mechanical properties of the dry bamboo strips.

[0039] Furthermore, after the bamboo board has cooled to room temperature, the inner wall of the heat exchange channel is polished.

[0040] As can be seen from the above description, by polishing the inner wall of the heat exchange channel, since the heat exchange channel is relatively narrow, with a diameter of 2-4mm (depending on the wall thickness of the bamboo; when selecting moso bamboo, choose bamboo with a wall thickness of more than 1cm for easier processing), traditional polishing tools are difficult to use. Therefore, a wire saw or other tools and methods suitable for polishing narrow channels can be used to make the inner wall of the heat exchange channel smoother and reduce the working resistance of the airflow for subsequent temperature regulation.

[0041] Furthermore, after forming the heat exchange channel, the bamboo board is cut into a predetermined shape;

[0042] If, after cutting, there are still mating grooves 4 and / or protrusions 5 on both sides of the width direction 2 of the bamboo board, then the mating grooves 4 will be filled and / or the protrusions 5 will be removed.

[0043] Furthermore, after the cutting is completed, both ends of each heat exchange channel are sealed 9. After sealing 9 is completed, the cut area and the sealing area are recoated with resin.

[0044] As can be seen from the above description, by recoating the cut and sealing 9 points with resin, problems such as insect infestation and cracking can be avoided.

[0045] Furthermore, after recoating with resin and allowing it to dry completely, the surface of the bamboo board is polished.

[0046] As can be seen from the above description, polishing can make the surface roughness of bamboo boards meet the requirements.

[0047] Furthermore, the output temperature range of the temperature controller is 5℃-40℃.

[0048] As can be seen from the above description, by using a working range of 5℃-40℃, the residual moisture in the dry bamboo strips is prevented from freezing and expanding due to excessively low temperatures, which would cause the bamboo board to crack. High temperatures are also avoided to prevent the resin from softening and causing a decrease in mechanical properties or deformation.

[0049] Furthermore, the moisture content of the dried bamboo strips is less than 5%. Example 1

[0050] A method for processing bamboo boards includes:

[0051] Step S1: Cut the bamboo horizontally into sections, mill off the outer and inner nodes, and then longitudinally split it into multiple arc-shaped bamboo strips. Steam and soften the bamboo strips, heat and press them to unfold them into a flat surface, and process them into block-shaped basic bamboo strips through double-sided planing. The basic bamboo strips have a length direction 1, a width direction 2 and a thickness direction 3, and the length of the basic bamboo strips is greater than the width and the thickness is greater than the thickness.

[0052] Step S2: The basic bamboo strips are heated and shaped in a mold to remove moisture, resulting in dried bamboo strips with a moisture content of less than 5%. On both sides of the dried bamboo strips along the width direction 2, mating grooves 4 and protrusions 5 are respectively machined to form a mating groove. The protrusions 5 are T-shaped, and the mating grooves 4 are T-shaped recesses. Multiple channels 6 are evenly distributed along the length direction 1 of the dried bamboo strips, and the channels 6 are set along the width direction 2 and penetrate the dried bamboo strips.

[0053] Step S3: The soaking tank has a cover. After placing the dry bamboo strips in the soaking tank, the cover is installed and pressure is applied until the resin penetrates into the dry bamboo strips. Then, the pressure is released, and the cover is opened. The resin-impregnated dry bamboo strips are then spliced ​​together in the soaking tank to form a bamboo board. The splicing includes: the mating grooves 4 and protrusions 5 of adjacent dry bamboo strips to connect two dry bamboo strips. During splicing, all the holes 6 of all dry bamboo strips are aligned to form a channel. A heating wire passes through the channel, with both ends of the heating wire extending out of the channel, and the heating wire is taut at the same time.

[0054] Step S4: Hot-press the bamboo board containing the heating wire, pressing in both the width direction 2 and the thickness direction 3. After hot pressing, heat the heating wire while simultaneously removing some of the melted resin to reshape each channel. After reshaping, disconnect the power and remove the heating wire to form a heat exchange channel. After the heat exchange channel is formed, wait for the bamboo board to cool to room temperature and then polish the inner wall of the heat exchange channel. After forming the heat exchange channel, cut the bamboo board according to the predetermined shape. If there are still mating grooves 4 and / or protrusions 5 on both sides of the width direction 2 of the bamboo board after cutting, fill the mating grooves 4 and / or remove the protrusions 5. Seal both ends of each heat exchange channel 9. After sealing 9, re-coat the cut area and the sealing area with resin. After re-coating with resin and waiting for it to dry, polish the surface of the bamboo board. Inlet 7 and outlet 8 are respectively opened on the lower surface of the bamboo strips on both sides of the bamboo board corresponding to the heat exchange channel.

[0055] Step S5: Use a temperature control machine to adjust the temperature of the bamboo plywood. The output temperature range of the temperature control machine is 5℃-40℃. The temperature control machine includes a circulation inlet and a circulation nozzle. The circulation inlet is connected to the outlet 8, and the circulation nozzle is connected to the inlet 7, to obtain bamboo plywood. Example 2

[0056] A method for processing bamboo boards includes:

[0057] Step S1: Cut the bamboo horizontally into sections, mill off the outer and inner nodes, and then longitudinally split it into multiple arc-shaped bamboo strips. Steam and soften the bamboo strips, heat and press them to unfold them into a flat surface, and process them into block-shaped basic bamboo strips through double-sided planing. The basic bamboo strips have a length direction 1, a width direction 2 and a thickness direction 3, and the length of the basic bamboo strips is greater than the width and the thickness is greater than the thickness.

[0058] Step S2: Heat and shape the basic bamboo strips in a mold and remove moisture to obtain dry bamboo strips with a moisture content of less than 5%. Fitting grooves 4 and protrusions 5 are machined on both sides of the dry bamboo strips in the width direction 2. Multiple channels 6 are evenly distributed along the length direction 1 of the dry bamboo strips, and the channels 6 are set along the width direction 2 and penetrate the dry bamboo strips.

[0059] Step S3: Place the dry bamboo strips into a resin soaking tank, and keep the temperature of the soaking tank above 50°C; after the dry bamboo strips are soaked in resin, they are spliced ​​together to form a bamboo board. The splicing includes: the mating grooves 4 and protrusions 5 of adjacent dry bamboo strips to connect the two dry bamboo strips. During splicing, all the holes 6 of all the dry bamboo strips are aligned. After the holes 6 are aligned, a channel is formed. A heating wire passes through the channel and both ends of the heating wire extend out of the channel. At the same time, the heating wire is straightened.

[0060] Step S4: Hot-press the bamboo board containing the heating wire, applying heat in both the width direction 2 and the thickness direction 3. After hot pressing, heat the heating wire while simultaneously removing some of the melted resin to reshape each channel. After reshaping, disconnect the power and remove the heating wire to form a heat exchange channel. After forming the heat exchange channel, cut the bamboo board according to a predetermined shape. If there are still mating grooves 4 and / or protrusions 5 on both sides of the width direction 2 of the bamboo board after cutting, fill the mating grooves 4 and / or remove the protrusions 5. Seal both ends of each heat exchange channel 9. After sealing 9, re-coat the cut area and the sealing area with resin. After re-coating with resin and waiting for it to dry, polish the surface of the bamboo board. Inlet 7 and outlet 8 are respectively opened on the lower surface of the bamboo strips on both sides of the bamboo board corresponding to the heat exchange channel.

[0061] Step S5: Use a temperature control machine to adjust the temperature of the bamboo plywood. The output temperature range of the temperature control machine is 5℃-40℃. The temperature control machine includes a circulation inlet and a circulation nozzle. The circulation inlet is connected to the outlet 8, and the circulation nozzle is connected to the inlet 7, to obtain bamboo plywood.

[0062] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for processing bamboo board, characterized in that, The application relates to a bamboo plywood manufacturing method. Step S1: bamboo is cut into segments, the outer nodes and inner nodes are milled off, the bamboo segments are longitudinally cut into a plurality of arc-shaped bamboo strips, the bamboo strips are softened by steaming and cooking, the arc-shaped bamboo strips are unfolded into planes by heating and pressurizing, and the bamboo strips are processed into block-shaped base bamboo strips by double-sided planing; the base bamboo strip has a length direction, a width direction and a thickness direction, and the length of the base bamboo strip is greater than the width and the thickness; Step S2: the base bamboo strip is heated and shaped in a mold and moisture is discharged to obtain a dry bamboo strip; a matched groove and a convex strip are respectively formed on the two sides of the dry bamboo strip in the width direction; a plurality of holes are uniformly distributed on the dry bamboo strip along the length direction, and the holes are arranged along the width direction and penetrate through the dry bamboo strip; Step S3: the dry bamboo strip is placed in a soaking pool containing resin, and the temperature of the soaking pool is kept above 50 DEG C; after the dry bamboo strip is soaked in the resin, the dry bamboo strips are spliced to form a bamboo plate; the splicing includes: the matched groove and the convex strip of the adjacent dry bamboo strips are connected to realize the connection of the two dry bamboo strips, all the holes of all the dry bamboo strips are aligned, a channel is formed after the holes are aligned, a heating wire is passed through the channel, and the two ends of the heating wire are stretched out of the channel; Step S4: the bamboo plate containing the heating wire is hot-pressed in the width direction and the thickness direction; after hot-pressing, the heating wire is electrified to heat, and part of the melted resin is cleaned to reshape each channel; after reshaping, the heating wire is taken out to form a heat exchange channel; the two ends of each heat exchange channel are blocked, and an inlet and an outlet are respectively arranged on the lower surfaces of the bamboo strips on the two sides of the heat exchange channel corresponding to the bamboo plate; Step S5: a temperature adjusting machine is used to adjust the temperature of the bamboo plate; the temperature adjusting machine comprises a circulating inlet and a circulating nozzle; the circulating inlet is communicated with the outlet, and the circulating nozzle is communicated with the inlet; and a bamboo plywood is obtained.

2. The method according to claim 1, wherein The heating wire is passed through the channel, and the two ends of the heating wire are stretched out of the channel.

3. The method according to claim 1, wherein The convex strip is a T-shaped convex strip, and the matched groove is a T-shaped groove.

4. The method according to claim 1, wherein The soaking pool has a cover plate; after the dry bamboo strips are placed in the soaking pool, the cover plate is covered and pressurized until the resin penetrates into the dry bamboo strips; then, the pressure is released, the cover plate is opened, and the dry bamboo strips soaked in the resin are spliced to form a bamboo plate in the soaking pool.

5. The method according to claim 1, wherein After the heat exchange channel is formed, the inner wall of the heat exchange channel is polished after the bamboo plate is cooled to room temperature.

6. The method according to claim 1, wherein After the heat exchange channel is formed, the bamboo plate is cut according to a predetermined shape. If the matched groove and / or the convex strip still exist on the two sides of the bamboo plate in the width direction after cutting, the matched groove is filled and / or the convex strip is removed.

7. The method according to claim 6, wherein After cutting, the two ends of each heat exchange channel are blocked, and the cutting part and the blocking part are re-coated with resin after blocking.

8. The method according to claim 7, wherein After the resin is re-coated, the surface of the bamboo plate is polished after drying.

9. The method according to claim 1, wherein The output temperature range of the temperature adjusting machine is 5 DEG C-40 DEG C.

10. The method according to claim 1, wherein The moisture content of the dry bamboo strip is less than 5%.

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