Phyllostachys pubescens compressed rigid blank structure
By combining a resin-impregnated bamboo core layer, binding materials, and a resin-impregnated inclined layer, the problem of low density in bamboo blanks is solved, resulting in high-hardness, high-density compressed wood and improving the performance of bamboo.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-14
AI Technical Summary
Existing bamboo blanks have low density, resulting in poor rigidity and a tendency to delaminate and crack, making it difficult to utilize the properties of moso bamboo.
The structure combines a resin-impregnated bamboo core layer with fasteners, along with a resin-impregnated diagonal bracing layer and fasteners. It is then compressed using a cold press to form a multi-layered compressed wood with high hardness and high density, and adhesive is used to enhance the connection between the layers.
It increases the hardness and density of bamboo, avoids delamination and cracking, and significantly improves the performance of bamboo.
Smart Images

Figure CN224116351U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bamboo blank technology, specifically relating to a rigid blank structure for compressed moso bamboo. Background Technology
[0002] Bamboo laminated timber is made from finely processed bamboo strips that are glued and pressed together to form boards and square timber. When producing bamboo blanks, large-diameter moso bamboo aged 4-6 years is usually used. It undergoes dozens of processes such as sawing, cutting, slicing, rough planing, high-temperature steaming, high-pressure carbonization, drying, fine planing, color sorting, assembly and pressing, and sanding. It has excellent physical properties and has the advantages of low water absorption and expansion coefficient, no cracking, and no deformation.
[0003] However, the bamboo blanks produced today have a low density, resulting in poor rigidity and a tendency to delaminate and crack. Therefore, they cannot fully utilize the properties of bamboo and are not conducive to the normal use of bamboo blanks. Utility Model Content
[0004] Based on the problems mentioned in the background technology above, this utility model provides a rigid blank structure for compressed bamboo, which solves the problem that the bamboo blanks currently being made have low density, resulting in poor rigidity and easy delamination and cracking, thus making it difficult to make full use of bamboo materials and hindering the normal use of bamboo blanks.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A rigid blank structure for compressed moso bamboo includes:
[0007] The resin-impregnated bamboo core layer has multiple layers.
[0008] The resin-impregnated inclined layer has multiple layers, which are located between two adjacent resin-impregnated bamboo core layers.
[0009] Binding fastener one, which is used to securely bind and stabilize the components in each layer of resin-impregnated bamboo frame;
[0010] Binding fastener two is used to securely bind the components in the upper and lower adjacent layers of resin-impregnated bamboo frame.
[0011] Based on the above technical solution, the present invention has made the following improvements:
[0012] Furthermore, the resin-impregnated bamboo core layer includes bamboo stalks, and multiple bamboo stalks are arranged in an array, with adhesive applied to both the inside and the outer wall of each bamboo stalk.
[0013] Furthermore, the resin-impregnated inclined layer includes inclined plates, and multiple inclined plates are arranged in an inclined array, respectively located between bamboo stalks in two adjacent resin-impregnated bamboo stalk layers. The inside and outside walls of the inclined plates are coated with adhesive.
[0014] Furthermore, the inclined plates located between the bamboo culms in the two adjacent layers of resin-impregnated bamboo culms intersect in opposite directions.
[0015] Furthermore, the binding fastener includes a bamboo fiber rope, which is wrapped between the bamboo stalks in each layer of impregnated bamboo stalks, and the bamboo fiber rope is coated with adhesive both inside and out.
[0016] Furthermore, the second binding element includes a second bamboo fiber rope, which is wrapped between the bamboo stalks in the upper and lower adjacent layers of impregnated bamboo stalks, and the second bamboo fiber rope is coated with adhesive both inside and outside.
[0017] The beneficial effects of this utility model are:
[0018] 1. By combining the set resin-impregnated bamboo rib layer, binding fastener one and binding fastener two, the resin-impregnated bamboo rib layer serves as the basic component of the entire moso bamboo rigid blank structure. Binding fastener one binds and assembles the bamboo ribs in each resin-impregnated bamboo rib layer to form a row, and binding fastener two binds and assembles the bamboo ribs in adjacent resin-impregnated bamboo rib layers, thereby binding and assembling to form a rectangular cross-section blank.
[0019] 2. By setting a diagonal impregnation layer between two adjacent impregnated bamboo core layers, the rigidity of each impregnated bamboo core layer can be enhanced, avoiding the phenomenon of lateral collapse of each impregnated bamboo core layer in the assembled rectangular cross-section blank, and finally compressing it into wood with high hardness, high density and high strength. Attached Figure Description
[0020] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;
[0021] Figure 1 This is a perspective view of the assembly of a rigid blank structure for compressing moso bamboo according to the present invention.
[0022] Figure 2 This is a plan view of the assembly of a rigid blank structure for compressing moso bamboo according to this utility model;
[0023] Figure 3 This is a partial component diagram of a rigid blank structure for compressing moso bamboo according to this utility model;
[0024] Figure 4 This is a distribution diagram of the diagonal tie members in a rigid blank structure for compressed bamboo according to this utility model;
[0025] Figure 5This is a cross-sectional view of a rigid blank structure for compressing moso bamboo according to this utility model.
[0026] The attached diagram is labeled as follows:
[0027] 1. Glue-impregnated bamboo frame layer; 101. Bamboo frame pole; 2. Glue-impregnated inclined tension layer; 201. Inclined tension plate; 3. Bamboo fiber cable one; 4. Bamboo fiber cable two; 5. Glue coating layer. Detailed Implementation
[0028] like Figures 1-5 As shown, a rigid blank structure for compressed bamboo includes:
[0029] The resin-impregnated bamboo frame layer 1 has multiple layers and includes bamboo stalks 101. Multiple bamboo stalks 101 are arranged in an array, and each bamboo stalk 101 serves as the basic component of the entire rigid blank structure.
[0030] The manufacturing process of bamboo stalk 101 involves the following steps: First, the bamboo is shaped into the desired form and its surface is smoothed. Second, the stalks are dried and then immersed in a polyethylene glycol solution, maintained at a specific temperature range of 75°C to 80°C for 12 to 15 hours to achieve delignin removal. Third, the delignin-treated stalks are thoroughly impregnated with a resin-tung oil adhesive with refractive index matching properties. The functional resin contains methyl methacrylate prepolymerized resin with added silicon or cadmium selenide. The bamboo stalk 101 produced through this process has adhesive coating both its interior and exterior walls.
[0031] See Figures 1 to 3 The first binding component is used to bind and stabilize the components in each layer of resin-impregnated bamboo rib 1. The first binding component includes bamboo fiber rope 3. The manufacturing process of bamboo fiber rope 3 is roughly the same as that of bamboo rib 101. The only difference is that the bamboo is first made into fibrous woven rope, so that the bamboo fiber rope 3 is coated with adhesive inside and out. Then, the bamboo fiber rope 3 is used to bind between the bamboo rib 101 in each layer of resin-impregnated bamboo rib 1, so that the binding assembly forms a row.
[0032] Binding fastener two is used to bind and stabilize the components in the upper and lower adjacent layers of resin-impregnated bamboo ribs 1. Binding fastener two includes bamboo fiber rope two 4. The manufacturing process of bamboo fiber rope two 4 is the same as that of bamboo fiber rope one 3, so that the inner and outer surfaces of bamboo fiber rope two 4 are coated with adhesive. Then, bamboo fiber rope two 4 is used to bind between the bamboo rib rods 101 in the upper and lower adjacent layers of resin-impregnated bamboo ribs 1, so as to bind and assemble the bamboo rib rods 101 in the upper and lower adjacent layers of resin-impregnated bamboo ribs 1, thereby binding and assembling to form a rectangular cross-section blank.
[0033] See Figures 1 to 4The resin-impregnated inclined layer 2 has multiple layers, which are located between two adjacent resin-impregnated bamboo frame layers 1. The resin-impregnated inclined layer 2 includes an inclined plate 201. The manufacturing process of the inclined plate 201 is the same as that of the bamboo frame pole 101, so that the inside and outside of the inclined plate 201 are also covered with adhesive liquid.
[0034] Multiple inclined tie plates 201 are arranged in an inclined array and are respectively located between bamboo rods 101 in two adjacent impregnated bamboo rib layers 1. After each bamboo rod 101 is bound in an orderly manner using bamboo fiber rope 1 3 and bamboo fiber rope 2 4, each inclined tie plate 201 clamps the bamboo rods 101 in two adjacent impregnated bamboo rib layers 1, so as to serve as a support and reinforcement for the bamboo rods 101 in the two adjacent impregnated bamboo rib layers 1, and to prevent the impregnated bamboo rib layers 1 from collapsing in the assembled rectangular cross-section blank.
[0035] See Figure 1 , Figure 4 and Figure 5 After the blank is assembled in this specific way, it is compressed using a cold press. During the compression process, the pressure of the cold press is usually set to 3000MPa to apply pressure to the blank. Combined with the adhesive contained in the bamboo frame 101, the inclined plate 201, the bamboo fiber cable 1, and the bamboo fiber cable 2, it is pressed and bonded into a multi-layer compressed wood mainly composed of the glue-impregnated bamboo frame layer 1 and the glue-impregnated inclined plate layer 2. Finally, the surface of the compressed wood can be coated with glue to form a glue layer 5 to improve the appearance of the compressed wood board.
[0036] Furthermore, the inclined tie plates 201 located between the bamboo stalks 101 in the two adjacent impregnated bamboo stalk layers 1 have opposite inclination directions and cross each other, so that the multi-layer compressed wood formed by pressing contains woven mesh reinforcing members inside. This prevents the material in the multi-layer compressed wood with a rectangular cross-section from collapsing at the oblique side. At the same time, under the mutual pulling action of bamboo fiber rope 1 3 and bamboo fiber rope 2 4, the delamination phenomenon of the material in the multi-layer compressed wood can be avoided. In the end, it is compressed into wood with high hardness, high density and high strength, which significantly improves the performance and utilization value of bamboo.
[0037] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
Claims
1. A rigid blank structure for compressed moso bamboo, characterized in that: include: The resin-impregnated bamboo core layer (1) is provided with multiple layers; Impregnated inclined layer (2), the impregnated inclined layer (2) is provided in multiple layers, and is located between two adjacent impregnated bamboo core layers (1); Binding fastener one, the binding fastener one is used to bind and secure the components in each layer of resin-impregnated bamboo core (1); Binding fastener two is used to bind and stabilize the components in the upper and lower adjacent layers of resin-impregnated bamboo skeleton (1).
2. The rigid blank structure of compressed bamboo according to claim 1, characterized in that: The resin-impregnated bamboo core layer (1) includes bamboo cores (101), and multiple bamboo cores (101) are arranged in an array. The inner and outer walls of the bamboo cores (101) are coated with adhesive liquid.
3. The rigid blank structure of compressed bamboo according to claim 2, characterized in that: The impregnated inclined layer (2) includes an inclined plate (201), and multiple inclined plates (201) are arranged in an inclined array and are respectively located between bamboo stalks (101) in two adjacent impregnated bamboo stalk layers (1). The inside and outside of the inclined plate (201) are coated with adhesive.
4. The rigid blank structure of compressed moso bamboo according to claim 3, characterized in that: The inclined bracing (201) located between the bamboo culms (101) in the two adjacent resin-impregnated bamboo culm layers (1) has opposite inclination directions and crosses each other.
5. The rigid blank structure of compressed bamboo according to claim 2, characterized in that: The binding fastener includes a bamboo fiber rope (3), which is wrapped between bamboo stalks (101) in each layer of impregnated bamboo stalks (1), and the bamboo fiber rope (3) is coated with adhesive both inside and outside.
6. The rigid blank structure of compressed moso bamboo according to claim 2, characterized in that: The binding fastener 2 includes bamboo fiber cable 2 (4), which is wrapped between bamboo stalks (101) in adjacent layers of impregnated bamboo stalks (1). The bamboo fiber cable 2 (4) is coated with adhesive both inside and outside.