A bamboo square

Abstract

This utility model relates to the field of building materials technology and provides a bamboo square material. The bamboo square material includes a square body, which comprises at least one layer of bamboo curtain, at least two layers of wood veneer, and an adhesive. The bamboo curtain has grooves on both sides; at least two layers of wood veneer are stacked with the bamboo curtain, with the outermost layer being wood veneer; the adhesive is placed between the bamboo curtain and the wood veneer to connect them. This utility model solves the problem of high cost of existing building timber as a supporting material in construction, and achieves a low-cost bamboo square material with different physical and mechanical properties.

Description

Technical Field

[0001] This utility model relates to the field of building materials technology, and in particular to a type of bamboo square material. Background Technology

[0002] Construction timber, as a supporting material in building construction, is consumed in hundreds of millions of cubic meters annually. Currently, the engineering field mainly uses coniferous woods such as pine and fir to process construction timber, and its raw materials largely rely on imported timber, resulting in high procurement costs and an unstable supply chain.

[0003] Bamboo, often called "plant steel," possesses excellent properties such as lightweight, high strength, and high flexibility. Its tensile and compressive strength along the grain are superior to those of wood. Processing bamboo into square timber will undoubtedly save a significant amount of timber and other social resources, providing new ideas for resource-saving construction and green building practices.

[0004] Therefore, it is necessary to design a bamboo square material to replace building timber. Utility Model Content

[0005] This utility model provides a bamboo square material to solve the problem of high cost of existing building timber as a supporting material in building construction, and realizes a low-cost bamboo square material with different physical and mechanical properties.

[0006] This utility model provides a bamboo square material, including a square material body, wherein the square material body includes: At least one layer of bamboo curtain, with engravings on both sides of the bamboo curtain; At least two layers of wood veneer are stacked with the bamboo curtain, with the outermost layer being wood veneer; An adhesive is placed between the bamboo curtain and the wood veneer to connect the bamboo curtain and the wood veneer.

[0007] According to the bamboo square material provided by this utility model, the bamboo curtain includes: Several flattened bamboo strips are arranged side by side in sequence, and the engravings are located on the yellow and green sides of the flattened bamboo strips; Several cotton thread connecting components connect several flattened bamboo strips into a whole.

[0008] According to the present invention, the depth of the serration is 1 / 5 to 1 / 3 of the thickness of the flattened bamboo strip, and the spacing of the serration is 5 to 15 mm.

[0009] According to the present invention, both the bamboo curtain and the wood veneer have a carbonized layer on their surfaces.

[0010] According to the present invention, a bamboo square material is provided, wherein the surface of the wood veneer is provided with permeation gaps.

[0011] According to the present invention, a bamboo square material is provided, wherein a bamboo bundle filling layer is provided between the bamboo curtain and the wood veneer, and the bamboo bundle filling layer is used to absorb deformation stress.

[0012] According to the present invention, a bamboo square material is provided, wherein the bamboo bundle filling layer is a mesh structure woven from bamboo filament bundles.

[0013] According to the present invention, a bamboo square material is provided, wherein the bamboo bundle filling layer is woven with shape memory alloy wire.

[0014] According to the present invention, a bamboo square material is provided at the end of the square material body, wherein a reinforcing sleeve is provided.

[0015] According to the present invention, a bamboo square material is provided in which the inner wall of the reinforcing sleeve is provided with barbs, and the barbs are embedded in the interior of the square material body.

[0016] The bamboo square material provided by this utility model is constructed by layering bamboo curtains and wood veneers. The bamboo curtains bear the main axial load, and the high tensile strength of bamboo enhances the bending resistance of the square material. The wood veneers inhibit transverse cracking of the bamboo fibers and provide a smooth support surface. This significantly reduces dependence on wood, improves resource renewability, and the rapid growth characteristics of bamboo shorten the resource regeneration cycle while maintaining superior compressive strength compared to wood. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the flattened bamboo strip provided by this utility model.

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the bamboo square material provided by this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the flattened bamboo strip provided by this utility model.

[0021] Figure 4 This is a schematic diagram of the bamboo green surface of the flattened bamboo strip provided by this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the yellow surface of the flattened bamboo strip provided by this utility model.

[0023] Figure 6This is a schematic diagram of the structure of the bamboo curtain provided by this utility model.

[0024] Figure 7 This is a cross-sectional structural diagram of the bamboo square material provided by this utility model.

[0025] Figure 8 This is a schematic diagram of the structure of the bamboo square material provided by this utility model.

[0026] Figure 9 This is a schematic diagram of the arc-shaped bamboo strip processing device provided by this utility model.

[0027] Figure 10 This is a schematic diagram of the structure of the initial processing component of the arc-shaped bamboo strip processing device provided by this utility model.

[0028] Figure 11 This is a schematic diagram of the finishing components of the arc-shaped bamboo strip processing device provided by this utility model.

[0029] Figure 12 This is a schematic diagram of the structure of the first bamboo-removing component of the arc-shaped bamboo strip processing device provided by this utility model.

[0030] Figure 13 This is a schematic diagram of the structure of the first bamboo yellowing component of the arc-shaped bamboo strip processing device provided by this utility model.

[0031] Figure 14 This is a schematic diagram of the structure of the second bamboo-removing component of the arc-shaped bamboo strip processing device provided by this utility model.

[0032] Figure 15 This is a schematic diagram of the thickness-fixing component of the arc-shaped bamboo strip processing device provided by this utility model.

[0033] Figure 16 This is a schematic diagram of the thickness-fixing component of the arc-shaped bamboo strip processing device provided by this utility model.

[0034] Figure 17 This is a schematic diagram of the structure of the first modular accessory platform of the arc-shaped bamboo strip processing device provided by this utility model.

[0035] Figure 18 This is one of the structural schematic diagrams of the upper functional roller of the arc-shaped bamboo strip processing device provided by this utility model.

[0036] Figure 19 This is the second schematic diagram of the upper functional roller of the arc-shaped bamboo strip processing device provided by this utility model.

[0037] Figure 20 This is the third schematic diagram of the upper functional roller of the arc-shaped bamboo strip processing device provided by this utility model.

[0038] Figure 21 This is one of the schematic diagrams of the blade structure of the upper functional roller of the arc-shaped bamboo strip processing device provided by this utility model.

[0039] Figure 22 This is the second schematic diagram of the blade structure of the upper functional roller of the arc-shaped bamboo strip processing device provided by this utility model.

[0040] Figure 23 This is the third schematic diagram of the blade structure of the upper functional roller of the arc-shaped bamboo strip processing device provided by this utility model.

[0041] Figure label: 100: Frame; 10: Curved bamboo strip processing device; 200: Preliminary processing component; 210: First modular accessory platform; 211: Mounting frame; 212: Lower functional roller; 213: Upper functional roller; 214: Slider; 215: Guide groove; 216: Reset component; 217: Screw; 220: Second modular accessory platform; 230: Third modular accessory platform; 240: Fourth modular accessory platform; 250: Fifth modular accessory platform; 300: Finishing component; 310: Sixth modular accessory platform; 320: First bamboo greening component; 321: First gantry frame; 322: First connecting rod; 323: First spring; 324: First chute; 325: Floating plate; 326: First support plate; 327: First mounting plate; 328: First cutter roller; 330: Seventh modular accessory platform; 340: First bamboo yellowing component; 341: Second gantry frame; 342: First floating roller; 343: Second chute; 344: Second connecting rod; 34 5: Second spring; 346: Second mounting plate; 347: Second cutter roller; 348: Second support plate; 350: Ninth modular accessory platform; 360: Tenth modular accessory platform; 370: Second bamboo greening component; 371: Third gantry frame; 372: Third support plate; 373: Third chute; 374: Third connecting rod; 375: Third spring; 376: Second floating roller; 377: Third mounting plate; 378: Third cutter roller; 380: Eleventh modular accessory platform; 390: Second bamboo yellowing component; 400: Thickness-fixing component; 410: Eighth modular accessory platform; 420: Thickness-fixing part; 421: Fourth gantry; 422: Fourth chute; 423: Fourth support plate; 424: Fourth connecting rod; 425: Fourth cutter roller; 426: Fourth mounting plate; 500: Bamboo strips; 610: Pointed knife roller; 620: Rectangular knife roller; 630: Circular knife roller; 700: Bamboo curtain; 710: Flattened bamboo strips; 720: Engraving marks; 800: Adhesive; 900: Wood veneer. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] The following is combined Figures 1-23 Describe the structure and working principle of this utility model.

[0044] Reference Figure 1 and Figure 2 This utility model provides a bamboo square material comprising a square material body, which includes at least one layer of bamboo curtain 700, at least two layers of wood veneer 900, and adhesive 800. Both sides of the bamboo curtain 700 are provided with notches 720, the depth of which is 1 / 5 to 1 / 3 of the thickness of the flattened bamboo strip 710, and the spacing between the notches 720 is 5 to 15 mm. At least two layers of wood veneer 900 are stacked with the bamboo curtain 700, with the outermost layer being wood veneer 900. Adhesive 800 is disposed between the bamboo curtain 700 and the wood veneer 900 for connecting them.

[0045] Specifically, adhesive 800 is applied to the contact surface of wood veneer 900, and hot pressing is used to allow the adhesive 800 to penetrate into the grooved areas 720 of bamboo curtain 700 to achieve a fixed connection. The grooves 720 are distributed on both sides of the bamboo curtain 700, and their grooved structure promotes the flow and penetration of adhesive 800. Wood veneer 900 is made of fast-growing wood, and its grain direction is parallel to the direction of bamboo fibers in bamboo curtain 700. The outermost layer of wood veneer 900 covers the end face of bamboo curtain 700 to form a closed protective layer. Bamboo curtain 700 and wood veneer 900 are stacked alternately to form the square timber body.

[0046] This invention utilizes bamboo blinds (700) to bear the main axial load, leveraging the high tensile strength of bamboo to enhance the bending resistance of the square timber. Wood veneer (900) inhibits transverse cracking of bamboo fibers and provides a smooth support surface. During construction, it directly replaces traditional timber in the formwork support system. The notch (720) enhances the anchoring effect of the adhesive (800), and the outer layer of wood veneer (900) prevents burr formation. This significantly reduces reliance on timber, improves resource renewability, and the rapid growth characteristics of bamboo shorten the resource regeneration cycle while maintaining superior compressive strength compared to timber.

[0047] Understandably, the bamboo curtain 700 and wood veneer 900 are arranged in an alternating layered configuration, with the bamboo curtain 700 serving as the core load-bearing layer located in the middle of the layer. The grooves 720 on its two sides are used to enhance the interface bonding. Wood veneer 900 symmetrically covers the upper and lower surfaces of the bamboo curtain 700, forming a basic unit of "wood veneer 900-bamboo curtain 700-wood veneer 900". When the cross-sectional dimensions of the square timber need to be increased, multiple basic units can be repeatedly stacked, always maintaining a separation between adjacent bamboo curtains 700 by wood veneer 900, and ensuring that the outermost layer is always wood veneer 900. The bamboo fiber direction of the bamboo curtain 700 is oriented along the length of the square timber, while the wood grain direction of the wood veneer 900 is parallel to the bamboo fiber direction, ensuring efficient axial load transfer. Adhesive 800 is applied only to the contact surface of the wood veneer 900, and mechanical anchoring is achieved by hot pressing, allowing the adhesive to penetrate the grooves 720 of the bamboo curtain 700.

[0048] In this embodiment, the directionally arranged bamboo curtain 700 bears the main axial pressure and bending stress in the building support, utilizing the high tensile strength of bamboo to enhance the structural load-bearing capacity; the wood veneer 900 provides lateral restraint, inhibiting bamboo fiber splitting and dispersing local stress. The alternating layered structure makes the two materials complementary: the bamboo curtain 700 delays the longitudinal compression deformation of the wood veneer 900, and the wood veneer 900 prevents the lateral crack propagation of the bamboo curtain 700. When directly replacing traditional timber during construction, the mechanical interlocking of the notches 720 enhances the interface durability, and the outer wood veneer 900 eliminates the potential for bamboo burrs.

[0049] Reference Figures 3 to 8 In some embodiments of this utility model, the bamboo curtain 700 includes a plurality of flattened bamboo strips 710 and a plurality of cotton thread connecting components. The plurality of flattened bamboo strips 710 are arranged side by side in sequence, and the grooves 720 are located on the yellow and green surfaces of the flattened bamboo strips 710; the plurality of cotton thread connecting components connect the plurality of flattened bamboo strips 710 into a whole.

[0050] Specifically, the cotton thread connecting component uses double-stranded cotton thread to penetrate the flattened bamboo strips 710 in a continuous zigzag pattern. During the operation of the weaving machine, each flattened bamboo strip 710 is arranged at equal intervals along its width, with the yellow bamboo side and the green bamboo side of each strip on the same side. The cotton thread connecting component enters from the yellow bamboo side of the first flattened bamboo strip 710, passes through the thickness of the strip, and exits from the green bamboo side. It then crosses a 5-8mm gap diagonally to enter from the green bamboo side of the adjacent flattened bamboo strip 710, and exits from the yellow bamboo side to form a knot. This thread loop runs through all the flattened bamboo strips 710, and is knotted at both ends to form a complete bamboo curtain 700. The notches 720 are distributed in the non-perforated areas of the green and yellow bamboo sides to prevent the cotton thread from covering and affecting the penetration of the adhesive 800.

[0051] In this embodiment, the flattened bamboo strips 710 are integrated into a continuous load-bearing unit through the flexible binding of the cotton thread connecting components, maintaining uniform spacing between the bamboo strips and consistent direction of the bamboo fibers during the weaving process. When the bamboo curtain 700 serves as the load-bearing layer, the cotton thread allows for slight relative displacement of the flattened bamboo strips 710, dispersing localized stress concentration. The notches 720 are simultaneously set on both the green and yellow sides of the bamboo, allowing the adhesive 800 to achieve an equivalent anchoring depth when penetrating from the wood veneer 900 to both sides of the bamboo curtain 700. This connection method maintains the high tensile strength of bamboo, avoids the stress shielding effect caused by metal connectors, and the biodegradable properties of the cotton thread meet the requirements of green materials, significantly shortening the resource regeneration cycle.

[0052] In other possible embodiments, the cotton thread connecting component can be replaced with a 2mm wide synthetic fiber strip, which wraps around the sides of adjacent flattened bamboo strips 710 in a wavy path: starting from the yellow bamboo side of the first flattened bamboo strip 710, it wraps around the strip and covers the green bamboo side, then crosses over to the green bamboo side of the second flattened bamboo strip 710 and performs the same wrapping, finally heat-fused to both ends of the strip. This embodiment increases the contact area and reduces relative slippage between bamboo strips through the strip wrapping; this embodiment improves the anti-delamination ability of the bamboo curtain 700; this embodiment enhances the shape retention of the bamboo curtain 700 in humid environments.

[0053] In some embodiments of this utility model, the surfaces of both the bamboo curtain 700 and the wood veneer 900 are provided with a carbonized layer (not shown in the figure).

[0054] Specifically, the flattened bamboo strips 710 of the bamboo curtain 700 undergo carbonization before weaving: the flattened bamboo strips 710 are placed in a high-temperature environment of 180-220℃ for 30-50 minutes, forming a homogeneous carbonized layer with a depth of 0.1-0.3mm on the green bamboo surface, yellow bamboo surface, and sides. The surface is dark brown and the porosity is reduced by more than 60%. The wood veneer 900 undergoes carbonization simultaneously after planing and drying, with the carbonized layer covering its two main surfaces and four sides. The notches 720 are processed after carbonization, with the groove depth extending through the carbonized layer into the interior of the substrate. This allows the adhesive 800 to be applied to the carbonized layer surface of the wood veneer 900 and then directly contact the bamboo substrate through the notches 720 after hot pressing. The contact surface between the carbonized layer and the adhesive 800 remains unsanded to preserve the carbonized crystalline structure.

[0055] This embodiment alters the surface chemical properties of the material through a carbonization layer: the sugars, starches, and other organic substances in bamboo and wood decompose at high temperatures, forming a hydrophobic carbon barrier. During construction, when the bamboo curtain 700 bears a load, the carbonization layer blocks moisture penetration along the capillaries, inhibiting the strength loss caused by the hygroscopic expansion of bamboo fibers; the carbonization layer of the wood veneer 900 and the adhesive 800 form a molecular-level bond, and their carbonized microcrystalline structure enhances the interfacial mechanical interlocking. This structure reduces deformation and cracking of bamboo squares in humid construction environments, extending their reuse cycle to more than twice that of traditional timber squares.

[0056] In some embodiments of this utility model, the surface of the wood veneer 900 is provided with penetration gaps (not shown in the figure).

[0057] Specifically, the surface of the wood veneer 900 is mechanically rolled to form penetration gaps, which can be continuous V-shaped micro-grooves arranged parallel to the grain direction of the wood veneer 900. These penetration gaps extend through the entire glued surface of the wood veneer 900, with the groove walls and bottom maintaining the original fiber structure of the wood. During lamination assembly, the adhesive 800 applied to the surface of the wood veneer 900 preferentially fills the penetration gaps, forming continuous flow channels. The notched areas 720 of the bamboo mat 700 are distributed directly opposite the penetration gaps, allowing the adhesive to directionally penetrate into the notched grooves 720 through the gap network.

[0058] This embodiment constructs a directional delivery path for adhesive 800 through permeation gaps: during hot pressing, the viscosity of adhesive 800 decreases due to heat, and it flows rapidly to the notched 720 area of ​​bamboo curtain 700 under the capillary action of the permeation gaps. Undamaged wood fibers within the gaps form capillary bundles, accelerating the longitudinal diffusion of the adhesive; the corresponding layout of the notched 720 grooves and the permeation gaps achieves efficient anchoring of the adhesive. This structure reduces the amount of adhesive 800 used and eliminates localized adhesive deficiency defects; the adhesive layer forms a three-dimensional interpenetrating network at the bamboo-wood interface, improving the peel strength between bamboo curtain 700 and wood veneer 900, ensuring the long-term stability of the building support system.

[0059] In some other possible embodiments, the permeation gaps can be configured as lattice-shaped depressions: hemispherical pits arranged in a honeycomb pattern on the surface of the wood veneer 900. After the adhesive 800 is applied, the pits form adhesive storage microcavities, and during hot pressing, the adhesive overflows radially from the edges of the pits, covering the contact surface. This embodiment compensates for adhesive loss in localized high-permeability areas of the wood through lattice-shaped adhesive storage; this embodiment also improves the uniformity of the adhesive layer thickness.

[0060] In other embodiments, the penetration gaps employ a cross-grid configuration: main channels are arranged along the 90° grain direction of the wood veneer, and auxiliary channels with half the depth are added perpendicular to the grain direction, forming an orthogonal guiding network with varying depths. The two ends of the auxiliary channels are connected to the main channels. This embodiment achieves two-dimensional diffusion of the adhesive through an orthogonal network; this embodiment also reduces adhesive retention along the grain direction.

[0061] In some embodiments of this utility model, a bamboo bundle filling layer is further provided between the bamboo curtain 700 and the wood veneer 900. The bamboo bundle filling layer is used to absorb deformation stress. The bamboo bundle filling layer is a mesh structure woven from bamboo filament bundles.

[0062] Specifically, a bamboo bundle filling layer is positioned between the bamboo curtain 700 and the adjacent wood veneer 900. Its thickness is less than that of the bamboo curtain 700 and it completely covers the contact area. The bamboo bundles are woven at staggered angles into a single-layer mesh structure with continuous diamond-shaped mesh cells. The bamboo bundle filling layer is bonded to both sides of the interface using adhesive 800: after the adhesive 800 is applied to the surface of the wood veneer 900, the bamboo bundle filling layer is laid flat on top of it. During hot pressing, the adhesive penetrates the mesh cells, encapsulates the bamboo bundles, and seeps into the grooves 720 of the bamboo curtain 700, forming an interface structure of bamboo curtain 700-bamboo bundle filling layer-wood veneer 900.

[0063] This embodiment absorbs interfacial deformation stress through the mesh structure of the bamboo bundle filling layer: when the bamboo curtain 700 and the wood veneer 900 expand and contract due to material differences, the elastic bending of the bamboo bundles and the deformation of the mesh dissipate shear stress, suppressing the risk of adhesive layer cracking. During construction, the woven mesh transforms localized concentrated loads into multi-directional dispersed stresses, alleviating stress concentration at the root of the notch 720; the mesh gaps maintain the flow channels of the adhesive 800, ensuring bonding continuity. This structure significantly improves the interfacial stability of bamboo squares under cyclic loading and temperature change environments.

[0064] In other possible embodiments, the bamboo bundle filling layer can adopt a two-way woven structure: bamboo bundles in the first direction and bamboo bundles in the second direction are interlaced at different orientation angles to form an orthogonal reinforcing grid. The adhesive 800 is applied in stages: first, it is applied to the surface of the wood veneer 900 and the bamboo bundles in the first direction are laid out; after a second application, the bamboo bundles in the second direction are covered, and then it is composited with the bamboo curtain 700. This embodiment suppresses anisotropic deformation through the orthogonal grid; this embodiment enhances adaptability to complex stresses.

[0065] In some embodiments of this invention, the bamboo bundle filling layer is woven with shape memory alloy wires.

[0066] Specifically, shape memory alloy wires are woven into the mesh structure of the bamboo bundle filling layer in a direction parallel to the bamboo filament bundles, interlacing and winding with the bamboo filament bundles at the weaving nodes to form a fixed connection. The ends of the alloy wires extend beyond the edges of the bamboo bundle filling layer, forming a mechanical anchoring structure through bending. This anchoring structure is fitted into the grooves 720 of the bamboo curtain 700 for locking. The surface of the alloy wires is roughened to enhance the adhesion to the adhesive 800. After the adhesive 800 is applied to the surface of the wood veneer 900, the bamboo bundle filling layer containing the alloy wires is covered, and hot-pressing curing forms an integral bond between the alloy wires, the bamboo filament bundles, and the interfaces on both sides.

[0067] This embodiment actively regulates interfacial stress through the phase transformation characteristics of shape memory alloy wires: when the ambient temperature exceeds a critical value, the alloy wires shrink to generate restoring force, enhancing the interfacial bonding strength between the bamboo bundle filling layer and the bamboo curtain 700; after the temperature returns to normal, the alloy wires maintain a preset tension state to suppress interlayer displacement. When the bamboo square is under load, the alloy wires share the bending stress of the bamboo bundles, reducing the risk of plastic deformation of the mesh; the mechanical anchoring structure prevents end peeling. This structure significantly improves the dimensional stability of the bamboo square under temperature cycling conditions and extends the service life of the support system.

[0068] In some embodiments of this utility model, a reinforcing sleeve (not shown in the figure) is provided at the end of the square body. The inner wall of the reinforcing sleeve is provided with barbs (not shown in the figure), which are embedded in the interior of the square body.

[0069] Specifically, the reinforcing sleeve is made of stamped metal, with a circumferentially distributed array of conical barbs on its inner wall. The barbs are formed as an integral protrusion on the inner wall of the sleeve by a stamping die, with the tips inclined towards the central axis of the sleeve. During installation, the reinforcing sleeve is heated to a preset temperature and then inserted into the end of the square timber body. During the cooling and shrinkage of the metal, the barbs pierce into the outermost layer of wood veneer 900 and embed into the edge fibers of the bamboo curtain 700, forming an interference fit. The barb tips engage with the grooves 720 of the bamboo curtain 700 to form a mechanical interlock. The axial length of the reinforcing sleeve covers the end face and adjacent side areas of the square timber body.

[0070] This embodiment enhances the end-piece resistance to damage through rigid anchoring with metal barbs: under axial pressure during construction, the metal reinforcing sleeve restrains the delamination of the 90° end of the wood veneer; the barbs' locking action within the notches 720 prevents longitudinal cracking of the bamboo fibers. The metal sleeve disperses impact stress, and the barb array prevents relative slippage between the sleeve and the bamboo square body. This structure improves the integrity of the bamboo square end under repeated impacts.

[0071] In other possible embodiments, the reinforcing sleeve can employ a split clamp structure: two metal semi-rings with barbs on the inner wall cover the ends of the square timber body, with flange edges on the outer sides of the semi-rings, and bolts are fastened through flange holes. During assembly, the barbs are pressed into the 900mm surface layer of the wood veneer. This embodiment allows for partial replacement through a detachable structure; this embodiment is adaptable to different cross-sectional dimensions.

[0072] It should be noted that the flattened bamboo strips 710 in the above embodiments can be processed and produced by the curved bamboo strip processing device 10. The flattened bamboo strips 710 produced by the curved bamboo strip processing device 10 can effectively release the internal stress of the curved bamboo strips 500, causing the curved bamboo strips 500 to undergo regular deformation and achieve curvature adjustment. The specific structure and working principle of the curved bamboo strip processing device 10 are provided below, which can be referred to for details. Figures 9 to 23 .

[0073] Reference Figure 9The curved bamboo strip processing device 10 includes a frame 100, a preliminary processing component 200, a fine processing component 300, and a thickness fixing component 400. The initial processing component 200 is located on the frame 100 and is used to remove the bamboo nodes from the curved bamboo strip 500, cut the yellow surface of the bamboo strip in sections to form multiple irregular wavy patterns that do not penetrate through, and change the curvature of the curved bamboo strip. The fine processing component 300 is located on the frame 100 and is used to perform multiple micro-cuts on the yellow and green surfaces of the curved bamboo strip, and continue to cut the wavy patterns on the entire yellow surface to further adjust the curvature of the curved bamboo strip. The thickness fixing component 400 is located on the frame 100 and is used to cut and level the yellow surface of the curved bamboo strip 500 after the fine processing component, so as to obtain a bamboo strip with a basically uniform thickness in all directions. The initial processing component 200, the fine processing component 300 and the thickness fixing component 400 are arranged sequentially along the travel direction of the curved bamboo strip 500 and form a channel for the curved bamboo strip 500 to pass through quickly. It should be noted that before using this utility model, the raw bamboo is first divided into 3 or 4 equal parts according to its diameter to obtain an arc-shaped bamboo strip 500 with a width of 100mm, a length of 2440mm, and a thickness equal to the thickness of the bamboo wall. During operation, the arc-shaped bamboo strip 500 should be placed with the yellow side facing up and the green side facing down.

[0074] In this embodiment, the initial processing component 200 first removes the bamboo nodes from the curved bamboo strip 500, and then sequentially cuts several irregular, non-through wavy lines in different areas on the bamboo yellow surface. This effectively releases the internal stress of the curved bamboo strip 500, causing it to deform in a regular pattern and adjusting its curvature. Subsequently, the finishing processing component 300 performs multiple micro-cuts on both the bamboo yellow and bamboo green surfaces of the curved bamboo strip, and continues to cut wavy lines across the entire bamboo yellow surface, further adjusting the curvature of the curved bamboo strip. Finally, the thickness fixing component 400 cuts and flattens the bamboo yellow surface of the curved bamboo strip 500 after processing by the finishing component, resulting in a bamboo strip with a basically uniform thickness in all directions. The entire process is completed at room temperature, and cutting several irregular wavy lines replaces the traditional high-temperature softening step, eliminating internal stress and improving processing efficiency.

[0075] Reference Figure 10In some embodiments of this utility model, the initial processing component 200 includes a first modular accessory platform 210, a second modular accessory platform 220, a third modular accessory platform 230, a fourth modular accessory platform 240, and a fifth modular accessory platform 250. The first modular accessory platform 210 is located on the frame 100 and is used to cut the protruding parts of the curved bamboo strip 500; the second modular accessory platform 220 is located on the frame 100 and is used to transport the curved bamboo strip 500; the third modular accessory platform 230 is located on the frame 100 and is used to cut the entire area of ​​the curved bamboo strip 500; the fourth modular accessory platform 240 is located on the frame 100 and is used to cut the edge parts of the curved bamboo strip 500; the fifth modular accessory platform 250 is located on the frame 100 and is used to transport the curved bamboo strip 500; wherein, the first modular accessory platform 210, the second modular accessory platform 220, the third modular accessory platform 230, the fourth modular accessory platform 240 and the fifth modular accessory platform 250 are arranged sequentially along the traveling direction of the curved bamboo strip 500.

[0076] Specifically, the bottoms of the first modular accessory platform 210, the second modular accessory platform 220, the third modular accessory platform 230, the fourth modular accessory platform 240, and the fifth modular accessory platform 250 are all equipped with standardized mounting bases. Radial positioning is achieved through locating pins, and high-strength bolts are used to secure them to the threaded holes on the worktable surface of the frame 100. The contact surfaces between the mounting bases and the frame table surface are machined with anti-slip textures to enhance stability. The arrangement of each platform along the travel direction of the arc-shaped bamboo strip 500 can be adjusted according to processing requirements. For example, the first modular accessory platform 210 and the third modular accessory platform 230 can be prioritized during the roughing stage, while the fourth modular accessory platform 240 can be added during the finishing stage. The number of platforms can also be increased or decreased as needed; the minimum configuration can be achieved by installing only a single modular accessory platform to complete a specific process.

[0077] In the above structure, the first step in operation is to select the modular accessory platform to be used according to the processing requirements of the curved bamboo strip 500. The selected platform is initially aligned with the installation position on the machine frame 100 using locating pins, and then the bolts are tightened to secure it. After the curved bamboo strip 500 is fed in by the feeding mechanism, it is processed sequentially through each of the installed modular accessory platforms. When the processing technology changes, the bolts can be loosened to remove the current platform, and the platforms can be reassembled and installed according to the new process requirements. For example, during batch rough processing, only the first modular accessory platform 210 and the third modular accessory platform 230 need to be installed; when an edge finishing process is required, the fourth modular accessory platform 240 is then installed.

[0078] This embodiment achieves rapid replacement and repositioning of various functional platforms through a standardized modular accessory platform and its unified connection method. The first modular accessory platform 210, the second modular accessory platform 220, the third modular accessory platform 230, the fourth modular accessory platform 240, and the fifth modular accessory platform 250 use the same installation interface, allowing for flexible configuration of platform combinations according to processing requirements. This design ensures the processing accuracy of individual processes while adapting to diverse processing requirements through different platform combinations, significantly improving equipment utilization and process adaptability.

[0079] In some embodiments of this utility model, the finishing component 300 includes at least one first bamboo green removal component 320, at least one first bamboo yellow removal component 340, at least one sixth modular attachment platform 310, and at least one seventh modular attachment platform 330. The first bamboo green removal component 320 is disposed on the frame 100 and is used to remove the bamboo green surface of the curved bamboo strip 500; the first bamboo yellow removal component 340 is disposed at a distance from the first bamboo green removal component 320 and is used to remove the bamboo yellow surface of the curved bamboo strip 500; the sixth modular attachment platform 310 is disposed on the frame 100 and is used to transport the curved bamboo strip 500; the seventh modular attachment platform 330 is disposed between the first bamboo green removal component 320 and the first bamboo yellow removal component 340 and is used to cut the entire area of ​​the curved bamboo strip 500.

[0080] Specifically, the sixth modular accessory platform 310 and the seventh modular accessory platform 330 are both detachably fixed to the worktable of the frame 100 by bolts. Their mounting bases have positioning holes that engage with positioning pins on the frame 100 table surface to achieve radial positioning. The first bamboo green removal component 320 and the first bamboo yellow removal component 340 are movably mounted on the crossbeam of the frame 100 via a slide rail assembly. The slide rail has a graduated scale for adjusting the distance between them, and their positions are fixed by locking bolts. The cutting tool of the first bamboo green removal component 320 is made of carbide, and the diameter of the cutter head matches the width of the curved bamboo strip 500. The milling head of the first bamboo yellow removal component 340 has replaceable inserts made of high-speed steel. The cutting mechanism of the seventh modular accessory platform 330 is driven by a servo motor and can be adjusted at multiple angles. The number of components mounted on the frame 100 can be increased or decreased according to the processing requirements of the curved bamboo strip 500. For example, when processing thick-walled curved bamboo strips 500, two sets of the first bamboo green removal components 320 can be arranged side-by-side.

[0081] In the above structure, the curved bamboo strip 500 is first conveyed to the processing area by the sixth modular attachment platform 310, and then enters the first bamboo green removal component 320 to remove the bamboo green surface. After being conveyed by the seventh modular attachment platform 330 and completing the full-area cutting, the bamboo yellow surface is removed by the first bamboo yellow removal component 340. When processing requirements change, the distance between the first bamboo green removal component 320 and the first bamboo yellow removal component 340 can be adjusted to accommodate curved bamboo strips 500 of different lengths, or the number of seventh modular attachment platforms 330 can be increased to improve cutting accuracy. The processed curved bamboo strip 500 is finally output by the end conveying mechanism.

[0082] This embodiment achieves flexible configuration of the finishing process for the curved bamboo strips 500 through the modular design of the sixth modular accessory platform 310 and the seventh modular accessory platform 330, in conjunction with the adjustable first bamboo green removal component 320 and the first bamboo yellow removal component 340. The alternating arrangement of the first bamboo green removal component 320 and the first bamboo yellow removal component 340 ensures the efficiency of double-sided processing of the curved bamboo strips 500, while the spaced arrangement of the seventh modular accessory platform 330 ensures processing continuity and avoids process interference. Standardized interfaces for each component facilitate quick replacement, and the slide rail adjustment mechanism allows the equipment to adapt to the processing requirements of curved bamboo strips 500 of different specifications. The overall structure improves equipment utilization while ensuring processing accuracy.

[0083] In some embodiments of this utility model, the finishing component 300 includes at least one sixth modular accessory platform 310, a first bamboo green removal component 320, at least one seventh modular accessory platform 330, a first bamboo yellow removal component 340, a second bamboo green removal component 370, and a second bamboo yellow removal component 390. The first bamboo green removal component 320 is located on the frame 100 and is used to initially remove the bamboo green surface of the curved bamboo strip 500; the first bamboo yellow removal component 340 is located on the frame 100 and is used to initially remove the bamboo yellow surface of the curved bamboo strip 500; the second bamboo green removal component 370 is located on the frame 100 and is used to perform secondary removal of the bamboo green surface of the curved bamboo strip 500; the second bamboo yellow removal component 390 is located on the frame 100 and is used to perform secondary removal of the bamboo yellow surface of the curved bamboo strip 500; the sixth modular accessory platform 310 is located on the frame 100 and is used to transport the curved bamboo strip 500; the seventh modular accessory platform 330 is located on the frame 100 and is used to cut the entire area of ​​the curved bamboo strip 500; wherein, the first bamboo green removal component 320, the first bamboo yellow removal component 340, the second bamboo green removal component 370, and the second bamboo yellow removal component 390 are arranged sequentially along the traveling direction of the curved bamboo strip 500.

[0084] Specifically, the sixth modular accessory platform 310, the first bamboo green removal component 320, the seventh modular accessory platform 330, the first bamboo yellow removal component 340, the second bamboo green removal component 370, and the second bamboo yellow removal component 390 are all movably mounted on the worktable of the frame 100 via dovetail slide block assemblies. The slide blocks cooperate with pre-set dovetail guide rails on the frame 100 to achieve linear displacement and are locked in place by T-bolts. The conveyor rollers of the sixth modular accessory platform 310 are coated with a polyurethane anti-slip layer to enhance friction. The rotary cutter heads of the first and second bamboo green removal components 320 and 370 use tungsten carbide-based cemented carbide cutters and are mounted via flanges. The height of the cutter head axis is adjustable to accommodate curved bamboo strips 500 of different thicknesses. The cutting mechanism of the seventh modular accessory platform 330 is connected to the drive shaft via a universal joint, and the base is equipped with an angle positioning pin. The milling heads of the first and second bamboo yellow removal components 340 and 390 are equipped with indexable inserts and are finely adjusted laterally via slides. The installation position, quantity, and arrangement sequence of each component along the dovetail guide rail can be dynamically adjusted according to processing requirements. For example, for high-precision curved bamboo strips 500, the number of second bamboo yellow removal components 390 can be increased, or the seventh modular accessory platform 330 can be placed between two sets of first bamboo green removal components 320 to form a multi-level cutting process.

[0085] In the above structure, before operation, components are configured according to the process characteristics of the curved bamboo strip 500: loosen the T-bolts, slide the sixth modular accessory platform 310, the first bamboo green removal component 320, the seventh modular accessory platform 330, the first bamboo yellow removal component 340, the second bamboo green removal component 370, and the second bamboo yellow removal component 390 along the dovetail guide rail to the target station, and then re-lock them. After the curved bamboo strip 500 is input from the feeding end, it is first conveyed by the sixth modular accessory platform 310 to the first bamboo green removal component 320 to complete the rough processing of the bamboo green surface. Then, the seventh modular accessory platform 330 performs full-area cutting, and the first bamboo yellow removal component 340 performs rough processing of the bamboo yellow surface. Next, the second bamboo green removal component 370 performs fine processing of the bamboo green surface, and finally, the second bamboo yellow removal component 390 completes the fine processing of the bamboo yellow surface. When processing bamboo with special textures, the process order of the second bamboo green removal component 370 and the second bamboo yellow removal component 390 can be changed to achieve differentiated processing.

[0086] This embodiment achieves progressive control of double-sided fine processing of bamboo through a unified moving structure of dovetail guide rails and a stepped processing unit layout: after the first bamboo green removal component 320 and the first bamboo yellow removal component 340 remove the basic material, the second bamboo green removal component 370 and the second bamboo yellow removal component 390 perform surface finishing, forming a two-level processing system of "rough processing-fine processing"; the seventh modular attachment platform 330 is spaced between the bamboo green and bamboo yellow processing steps, ensuring cutting accuracy while avoiding tool interference; the adjustable position of all components allows the equipment to adapt to bamboo with different curvatures, for example, by moving the seventh modular attachment platform 330 forward to perform critical area cutting in advance. This design solves the problem of insufficient surface treatment of bamboo by traditional equipment through modular reconfiguration.

[0087] Reference Figure 11 In some other possible embodiments, the finishing component 300 includes a sixth modular accessory platform 310, a first bamboo-removing component 320, a seventh modular accessory platform 330, a first bamboo-removing component 340, a ninth modular accessory platform 350, a tenth modular accessory platform 360, a second bamboo-removing component 370, an eleventh modular accessory platform 380, and a second bamboo-removing component 390, arranged sequentially along the traveling direction of the arc-shaped bamboo strip 500. The ninth modular accessory platform 350 and the eleventh modular accessory platform 380 have the same function as the seventh modular accessory platform 330, and the tenth modular accessory platform 360 has the same function as the sixth modular accessory platform 310. It should be noted that the number and arrangement of the modular accessory platforms are not limited to the above-mentioned types and can be configured according to actual conditions.

[0088] Reference Figure 12 In some other possible embodiments, the first bamboo-removing component 320 includes a first gantry frame 321, at least two first connecting rods 322, a first spring 323, a first slide rail 324, a floating plate 325, two first support plates 326, a first mounting plate 327, and a first cutter roller 328. The first gantry frame 321 is mounted on the frame 100; the two first support plates 326 are spaced apart along the width of the first gantry frame 321; the floating plate 325 is positioned above the first support plates 326, and the floating plate 325 and the first support plates 326 are configured as part of a track; the two first connecting rods... The top end of 322 is slidably connected to the first gantry 321, and the bottom end is detachably connected to the floating plate 325; the first spring 323 is correspondingly sleeved on the first connecting rod 322, one end of the first spring 323 abuts against the first gantry 321, and the other end abuts against the baffle on the first connecting rod 322; the first slide groove 324 is provided on the first gantry 321, and the first connecting rod 322 is correspondingly slidably provided on the first slide groove 324; the first cutter roller 328 is provided on the first gantry 321 through the first mounting plate 327, and part of the first cutter roller 328 is located between the two first support plates 326.

[0089] Specifically, the first gantry 321 is fixed to the worktable of the frame 100 along the width direction of the frame 100 by bolts. The bolts pass through the mounting holes at the bottom of the gantry and are fastened to the threaded holes of the frame 100, and a locating pin is set on the mating surface to achieve radial constraint. Two first pallets 326 are arranged parallel to each other along the width direction of the first gantry 321 to form a conveying track. The floating plate 325 is located directly above the two first pallets 326, and its lower surface maintains a clearance fit with the upper surface of the first pallets 326, together forming the conveying channel of the arc-shaped bamboo strip 500. The top ends of the two first connecting rods 322 pass through the first slide groove 324 at the top of the first gantry 321 and form a sliding connection with the first gantry 321 through a hinged joint with a lock nut; the bottom ends are slidably disposed in the first slide groove 324 and are threadedly connected to the mounting seat of the floating plate 325. The first spring 323 is sleeved on the outside of the first connecting rod 322, with its upper end abutting against the lower surface of the top plate of the first gantry frame 321, and its lower end pressing against the annular baffle welded to the middle of the first connecting rod 322. The first cutter roller 328 is mounted on the first mounting plate 327 through a bearing seat. The first mounting plate 327 is vertically fixed to the side column of the first gantry frame 321 by bolts, so that the cutting edge of the first cutter roller 328 hangs in the gap between the two first support plates 326.

[0090] In the above structure, when the arc-shaped bamboo strip 500 is conveyed along the track formed by the first support plate 326 and the floating plate 325, its raised surface contacts the floating plate 325 and applies a lifting force. The floating plate 325 drives the first connecting rod 322 to slide upward along the first slide groove 324, while simultaneously compressing the first spring 323. This floating process ensures that the arc-shaped bamboo strip 500 always adheres to the cutting edge of the first cutter roller 328, achieving uniform removal of the bamboo green layer. After the arc-shaped bamboo strip 500 passes, the first spring 323 pushes the first connecting rod 322 to reset, causing the floating plate 325 to return to its initial height position. The rotational cutting direction of the first cutter roller 328 is opposite to the traveling direction of the arc-shaped bamboo strip 500, improving the bamboo green peeling efficiency.

[0091] This embodiment achieves adaptive cutting through the synergistic effect of the floating plate 325 and the first spring 323: when the thickness of the curved bamboo strip 500 is uneven, the lifting and lowering movement of the floating plate 325 automatically compensates for the height deviation, keeping the first cutter roller 328 at a constant cutting depth; the first slide groove 324 precisely guides the vertical movement of the first connecting rod 322, preventing the floating plate 325 from swaying; the track formed by the first support plate 326 and the floating plate 325 prevents the curved bamboo strip 500 from shifting during processing. This structure effectively solves the problem of poor adaptability of traditional rigid cutters to the surface undulations of bamboo, reduces bamboo residue, and lowers the risk of abnormal tool wear.

[0092] Reference Figure 13In some other possible embodiments, the first bamboo yellowing removal component 340 and the second bamboo yellowing removal component 390 both include a second gantry frame 341, a first floating roller 342, a plurality of second chutes 343, a second connecting rod 344, a second spring 345, a second mounting plate 346, a second cutter roller 347, and a second support plate 348. The second gantry 341 is mounted on the frame 100; the second pallet 348 is mounted on the second gantry 341; the second cutter roller 347 is mounted on the second gantry 341 via the second mounting plate 346 and is located above the second pallet 348; multiple second slide grooves 343 are arranged in a rectangular array on the second gantry 341; the second connecting rods 344 are arranged one-to-one with the second slide grooves 343, the top end of the second connecting rods 344 is slidably connected to the second gantry 341, and the bottom end is slidably mounted on the second slide grooves 343; the first floating roller 342 is arranged perpendicular to the traveling direction of the arc-shaped bamboo strip 500, and both ends are connected to the corresponding second connecting rods 344; the second springs 345 are sleeved one-to-one with the second connecting rods 344, one end of the second spring 345 abuts against the second gantry 341, and the other end abuts against the baffle on the second connecting rod 344.

[0093] Specifically, the second gantry 341 is bolted to the worktable of the frame 100. The bolts pass through the mounting holes at the bottom of the second gantry 341 and lock into the threaded holes of the frame 100. A locating pin is provided on the mating surface to achieve radial positioning. The second support plate 348 is welded and fixed to the lower part of the second gantry 341, forming the bearing plane of the arc-shaped bamboo strip 500. The second cutter roller 347 is mounted on the second mounting plate 346 through a bearing assembly. The second mounting plate 346 is vertically fixed to the side column of the second gantry 341 by bolts, so that the second cutter roller 347 is located directly above the second support plate 348. Two first floating rollers 342 are arranged parallel to each other on both sides of the second cutter roller 347, and two second connecting rods 344 are connected to the two ends of each first floating roller 342. Four sets of second sliding grooves 343 are machined in a rectangular array on the top plate of the second gantry 341, and each set of second sliding grooves 343 is located at the corresponding end of the first floating roller 342. The top end of the second connecting rod 344 passes through the top plate of the second gantry 341 and is equipped with a limiting component. The bottom end is slidably connected within the second slide groove 343 to achieve bidirectional constraint. The second spring 345 is sleeved on the second connecting rod 344, with its upper end abutting against the lower surface of the top plate of the second gantry 341 and its lower end pressing against the annular boss in the middle of the second connecting rod 344.

[0094] In the above structure, when the arc-shaped bamboo strip 500 moves along the surface of the second support plate 348 with its bamboo core facing upwards, its bottom surface contacts the first floating rollers 342 on both sides and applies a lifting force. The first floating rollers 342 slide upwards along the corresponding second slide grooves 343 via four sets of second connecting rods 344, simultaneously compressing the second springs 345. This floating process maintains a constant contact pressure between the bamboo core surface of the arc-shaped bamboo strip 500 and the second cutter roller 347, achieving uniform removal of the bamboo core layer. After the arc-shaped bamboo strip 500 passes, the second springs 345 push the second connecting rods 344 to reset, causing the first floating rollers 342 to return to their initial height. The rotation direction of the second cutter roller 347 is the same as the direction of travel of the arc-shaped bamboo strip 500, reducing cutting resistance.

[0095] This embodiment achieves lateral stability control through the coordinated action of two first floating rollers 342 and four sets of independent floating units: when the curved bamboo strip 500 has local warping, the corresponding area's second connecting rod 344 independently floats to compensate for the height difference; the rectangular array of second sliding grooves 343 ensures that the two ends of the first floating rollers 342 rise and fall synchronously; the floating rollers on both sides of the second cutter roller 347 are designed to form double-point support, preventing lateral displacement of the curved bamboo strip 500 during processing. This structure significantly improves adaptability to the undulations of the bamboo bottom surface and avoids the problem of uneven cutting depth caused by the deformation of the curved bamboo strip 500.

[0096] Reference Figure 14 In some other possible embodiments, the second bamboo-removing component 370 includes a third gantry 371, two third support plates 372, a plurality of third chutes 373, a third connecting rod 374, a third spring 375, a second floating roller 376, a third mounting plate 377, and a third cutter roller 378. The third gantry 371 is mounted on the frame 100; two third support plates 372 are spaced apart along the width of the third gantry 371; multiple third slide grooves 373 are arranged in an array on the third gantry 371; the third connecting rods 374 are arranged one-to-one with the third slide grooves 373, the top end of the third connecting rods 374 is slidably connected to the third gantry 371, and the bottom end is slidably mounted on the third slide groove 373; the second floating roller 376 is arranged perpendicular to the traveling direction of the arc-shaped bamboo strip 500, and both ends are connected to the corresponding third connecting rods 374; the third springs 375 are sleeved one-to-one with the third connecting rods 374, one end of the third spring 375 abuts against the third gantry 371, and the other end abuts against the baffle on the third connecting rod 374; the third cutter roller 378 is mounted on the third gantry 371 through the third mounting plate 377, and the highest part of the third cutter roller 378 is located between the gaps of the two third support plates 372.

[0097] It should be noted that the second bamboo removal component 370 has a similar structure to the first bamboo removal component 320. The difference is that the floating plate 325 in the first bamboo removal component 320 is replaced with the second floating roller 376. The rest of the structure can be referred to the first bamboo removal component 320, and will not be described in detail here.

[0098] Reference Figure 15 and Figure 16 In some other possible embodiments, the thickness-fixing assembly 400 includes at least one eighth modular attachment platform 410 and a thickness-fixing component 420. The eighth modular attachment platform 410 is disposed on the frame 100 and is used to convey the curved bamboo strips 500; the thickness-fixing component 420 is disposed on the frame 100 and is used to cut the curved bamboo strips 500 to a predetermined thickness. The thickness-fixing component 420 includes a fourth gantry 421, a plurality of fourth chutes 422, a fourth support plate 423, a fourth connecting rod 424, and a fourth cutter roller 425. The fourth gantry 421 is mounted on the frame 100; multiple fourth slides 422 are arranged in an array on the fourth gantry 421; the fourth connecting rod 424 is arranged in a one-to-one correspondence with the fourth slide 422, and its top end is threadedly connected to the fourth gantry 421 and its bottom end is slidably connected to the fourth slide 422; the fourth support plate 423 is connected to the fourth connecting rod 424; the fourth cutter roller 425 is mounted on the fourth gantry 421 through the fourth mounting plate 426 and is located above the fourth support plate 423.

[0099] Specifically, the eighth modular accessory platform 410 is detachably mounted on the worktable of the frame 100 by bolts. The bolts pass through mounting holes at the bottom of the platform and are locked to the threaded holes of the frame 100. The surface of its conveying rollers is provided with anti-slip texture. The fourth gantry 421 of the thickness-fixing component 420 is fixed to the frame 100 by bolts. The bolts pass through flange holes at the bottom of the fourth gantry 421 and are fastened to the threaded holes of the frame 100. A positioning pin is provided on the mating surface to prevent displacement. Multiple fourth slide grooves 422 are machined in a rectangular array on the top plate of the fourth gantry 421. Each fourth slide groove 422 has a slidingly fitted bottom roller of a fourth connecting rod 424. The top end of the fourth connecting rod 424 is provided with external threads, which are screwed into the threaded holes of the top plate of the fourth gantry 421; the bottom end is rigidly connected to the fourth support plate 423 by a pin. The fourth cutter roller 425 is mounted on the fourth mounting plate 426 via a bearing seat. The fourth mounting plate 426 is welded and fixed to the side column of the fourth gantry 421, so that the cutting edge of the fourth cutter roller 425 is precisely located above the fourth support plate 423 and arranged in parallel intervals.

[0100] In the above structure, before operation, the fourth connecting rod 424 is rotated to adjust the height of the fourth support plate 423: clockwise rotation raises the fourth support plate 423, and counterclockwise rotation lowers it, thereby setting the target thickness of the curved bamboo strip 500. After the curved bamboo strip 500 is conveyed to the surface of the fourth support plate 423 by the eighth modular accessory platform 410, the fourth cutter roller 425 rotates to perform cutting. When the curved bamboo strip 500 passes through, its lower surface adheres to the fourth support plate 423, and its upper surface contacts the fourth cutter roller 425, and it is cut to the preset thickness. The fourth slide groove 422 constrains the movement trajectory of the bottom end of the fourth connecting rod 424, ensuring that the fourth support plate 423 remains horizontal during height adjustment.

[0101] This embodiment achieves precise thickness control through a rigid adjustment mechanism with threaded transmission: the threaded engagement between the fourth connecting rod 424 and the fourth gantry 421 converts rotational motion into vertical displacement, giving the height adjustment of the fourth support plate 423 a self-locking characteristic; the sliding constraint of the fourth slide groove 422 on the bottom end of the fourth connecting rod 424 eliminates deflection errors during the adjustment process; the parallel arrangement of the fourth cutter roller 425 and the fourth support plate 423 ensures uniform cutting thickness. This design overcomes the shortcomings of traditional floating thickness-fixing mechanisms that are sensitive to the hardness of bamboo, and is especially suitable for batch processing of high-precision bamboo materials, significantly improving thickness consistency.

[0102] Reference Figure 17 In some other possible embodiments, the first modular accessory platform 210, the second modular accessory platform 220, the third modular accessory platform 230, the fourth modular accessory platform 240, the fifth modular accessory platform 250, the sixth modular accessory platform 310, the seventh modular accessory platform 330, and the eighth modular accessory platform 410 all include a mounting frame 211, a lower functional roller 212, an upper functional roller 213, a slider 214, two guide grooves 215, a reset member 216, and a screw 217. Mounting bracket 211 is mounted on frame 100; lower functional roller 212 is mounted at the bottom of mounting bracket 211; two guide grooves 215 are spaced apart on mounting bracket 211; sliders 214 are slidably mounted in the guide grooves 215; screws 217 are slidably mounted in the guide grooves 215 and slidably connected to the sliders 214; upper functional roller 213 is positioned between sliders 214; reset pieces 216 are fitted onto screws 217, with one end abutting against the top wall of the guide groove 215 and the other end abutting against the slider 214. It should be noted that the upper functional roller 213 can be selected with different structures and specifications according to actual functional requirements (its specific structure can be found in [reference needed]). Figures 18 to 20 The blades on the upper functional roller 213 include a pointed blade roller 610, a rectangular blade roller 620, and a circular blade roller 630 (see details). Figures 21 to 23 The same upper functional roller 213 can be made of one type of blade or a combination of multiple blades.

[0103] Specifically, the mounting frame 211 is bolted to the worktable of the machine frame 100. The bolts pass through the flange holes at the bottom of the mounting frame 211 and lock into the threaded holes of the machine frame 100. A locating pin is provided on the mating surface to achieve radial constraint. The lower functional roller 212 is rigidly mounted on the upper surface of the bottom crossbeam of the mounting frame 211 through a bearing seat. Its surface is covered with an anti-slip rubber layer for conveying the curved bamboo strips 500. Two guide grooves 215 are vertically welded to the inner side of the two side uprights of the mounting frame 211, and the groove direction is consistent with the height direction of the mounting frame 211. The slider 214 is slidably engaged with the T-shaped groove of the guide groove 215 through a T-shaped protrusion. The slider 214 has through holes machined on its side. The screw 217 passes through the limiting hole at the top of the guide groove 215 and the through hole of the slider 214. A limiting flange is provided at the top of the screw 217 to prevent it from falling off. The upper functional roller 213 is mounted between the two sliders 214 via a quick-change chuck and can be replaced with a cutting roller or a conveying roller according to processing requirements: the cutting roller has carbide teeth embedded on its surface, and the conveying roller is covered with a polyurethane layer. The reset piece 216 is sleeved on the outside of the screw 217, with its upper end abutting against the inner wall of the top of the guide groove 215 and its lower end pressing against the upper surface of the slider 214.

[0104] In the above structure, when the conveying function is configured: the curved bamboo strip 500 enters between the lower functional roller 212 and the upper functional roller 213 (conveyor roller). The thickness change pushes the upper functional roller 213 upward, and the slider 214 slides along the guide groove 215 and compresses the reset member 216, forming an adaptive clamping conveyor. When the cutting function is configured: the upper functional roller 213, which is replaced with a cutting roller, rotates to perform cutting when the curved bamboo strip 500 passes through. The thickness fluctuation is compensated by the floating of the slider 214 to keep the cutting depth stable. After the curved bamboo strip 500 passes through, the reset member 216 pushes the slider 214 to reset. The screw 217 constrains the rotational freedom of the slider 214 to ensure that the axis of the upper functional roller 213 is always parallel to the lower functional roller 212.

[0105] This embodiment achieves functional integration through a quick-change upper functional roller 213 design: the precise fit between the guide groove 215 and the slider 214 ensures motion accuracy under cutting conditions; the reset component 216 provides constant pressure to adapt to the thickness fluctuations of the curved bamboo strip 500mm; and the anti-slip surface of the lower functional roller 212 ensures reliable conveying. When the upper functional roller 213 is switched to a cutting roller, a dual-roller collaborative processing mode is formed, utilizing the conveying function of the lower functional roller 212 to maintain feed stability; when switched to a conveying roller, dual-point floating clamping is achieved. This structure satisfies the process compatibility of conveying and cutting through mechanical conversion, reducing redundant equipment configuration.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A type of bamboo square material, characterized in that, Includes a square timber body, the square timber body comprising: At least one layer of bamboo curtain (700), with engravings (720) on both sides of the bamboo curtain (700); At least two layers of wood veneer (900) are stacked with the bamboo curtain (700), and the outermost layer is wood veneer (900). An adhesive (800) is disposed between the bamboo curtain (700) and the wood veneer (900) for connecting the bamboo curtain (700) and the wood veneer (900).

2. The bamboo square material according to claim 1, characterized in that, The bamboo curtain (700) includes: Several flat bamboo strips (710) are arranged side by side in sequence, and the engravings (720) are located on the yellow bamboo surface and the green bamboo surface of the flat bamboo strips (710); Several cotton thread connecting components connect several flattened bamboo strips (710) into a whole.

3. The bamboo square material according to claim 2, characterized in that, The depth of the groove (720) is 1 / 5 to 1 / 3 of the thickness of the flattened bamboo strip (710), and the spacing of the groove (720) is 5 to 15 mm.

4. The bamboo square material according to claim 1, characterized in that, Both the bamboo curtain (700) and the wood veneer (900) have a carbonized layer on their surfaces.

5. The bamboo square material according to claim 4, characterized in that, The surface of the wood veneer (900) has permeation gaps.

6. The bamboo square material according to any one of claims 1-5, characterized in that, A bamboo bundle filling layer is also provided between the bamboo curtain (700) and the wood veneer (900), and the bamboo bundle filling layer is used to absorb deformation stress.

7. The bamboo square material according to claim 6, characterized in that, The bamboo bundle filling layer is a mesh structure woven from bamboo strands.

8. The bamboo square material according to claim 7, characterized in that, The bamboo bundle filling layer is woven with shape memory alloy wires.

9. The bamboo square material according to any one of claims 1-5, characterized in that, The ends of the square timber body are provided with reinforcing sleeves.

10. The bamboo square material according to claim 9, characterized in that, The inner wall of the reinforcing sleeve is provided with barbs, which are embedded inside the square material body.

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