Solid wood furniture is favored by end customers for its unique warm texture and natural grain patterns. However, due to the scarcity of large-sized wood resources in the market, most products are assembled using smaller pieces of solid wood. The methods and technical levels of board assembly vary greatly in both domestic and international markets, and some issues do exist.
Potential issues in traditional solid wood panel production
Due to internal stresses in wood and other factors, the surface of finished furniture may exhibit warping, deformation, and cracks in the joints.
2. Due to issues with the assembly method, problems such as the dislodging or even breaking of tenon joints between furniture panels may occur.
Two, mainstream board joining methods at home and abroad
Common types of plywood include tongue-and-groove, rabbet, beaded, miter, and flat joints.
1. Tooth-shaped puzzle
The pre-gluing processing is rather complex, and a portion of the original wood material is required to be wasted for the tooth-shaped interface. The tooth-shaped joints have a larger bonding area, offering good bonding strength, and the plywood surface is relatively flat.
2. Outliers Collaborate
The pre-gluing processing is quite complex, and a portion of the original wood material is required to be wasted for the production of convex-concave interfaces. The convex-concave bonding method allows the convex-concave components at the joint to cover the adhesive seam, and the larger bonding area also enhances the stability of the plywood.
3. Cut and sew
The joints in the cut-to-size pieces have a larger bonding area, offering good bonding strength and ease of alignment for the boards, but there is significant waste of the original wood material.
4. Slope Assembly
Compared to flat lamination, the inclined lamination primarily increases the glue bonding area of the板材, resulting in slightly higher strength. However, it is challenging to align the mating surfaces during glueing, which often leads to uneven surfaces on the laminated boards, significantly increasing the amount of sanding required after assembly.
The aforementioned four paneling methods generally require multiple machines, such as milling machines, combing machines, paneling machines, and sawing machines, occupying a large area. Due to the numerous processes, quality control can easily be compromised, leading to defects. Additionally, a considerable number of skilled workers are needed, typically 6-8 people, and the process is time-consuming and labor-intensive.
5. Flat pack
(1) Manual and fixture assembly method
Flat splicing involves directly using the raw materials of sheet materials provided by the sheet material factory, without the need for secondary processing of the sheet materials. It applies an even layer of adhesive between the side edges of the sheets, and then uses manual labor and fixtures, or a hydraulic system to apply pressure to the spliced sheets, allowing the solid wood strips to bond and form large panels after the adhesive has cured. This method requires higher standards for adhesives and machinery to ensure the quality of the bonded joints. The fixture splicing method, on the other hand, demands a higher level of skill from the workers and a larger storage area, and also involves a significant physical workload.
(2) High-frequency heating, hydraulic splicing method
Utilizing a high-frequency laminating machine for lamination, while the hydraulic system applies pressure, the high-frequency electric field rapidly and evenly heats the adhesive between the boards, ensuring quick and complete penetration of the adhesive. This results in high processing efficiency and enhanced stability of the finished boards.
