The Veneer Finger Joint consists of two parts: finger cutting and splicing, which are extremely important. Any error in one part can lead to uneven splicing of the veneer.
The finger knife, also known as the sawtooth knife, is a highly specialized and crucial tool for wood veneer splicing. It is mainly used on finger splicing machines to process sawtooth shapes at the ends of veneer.
Sawtooth knives are usually made of high-quality alloy steel to ensure overall rigidity and strength. Pitch refers to the distance between two adjacent tooth tips. This is the most important parameter, as it determines the strength and appearance of the finger joint. The pitch is usually selected based on the thickness of the wood veneer.
The veneer connector of the Veneer Finger Joint is more important. At the joint of the two wood veneers, stick a non-woven fabric on the back. The stickiness of the non-woven fabric will fix the wood veneers together. The thickness of the non-woven fabric is only 0.01mm, and no trace of the non-woven fabric can be seen on the wood veneer.Non-woven fabric has strong toughness. When pasted on the wood veneer, it can prevent the wood veneer from tearing and provide good protection for it.
The operation process is to place the short edges of the two pieces of wood veneer closely against the aligned workbench. The serrated knife will cut two pieces of wood veneer into serrated shapes, and there is a heating plate at the bottom of the Veneer Finger Joint, which will heat the wood veneer. When the two wood veneers are joined together, a non-woven tape coated with hot melt adhesive is pulled out from the reel and attached to the back of the wood veneer joint. Then the heating plate above the machine presses down, firmly pressing the non-woven fabric tape onto the wood veneer to complete the splicing.
If the thickness of the veneer is less than 3mm, you will need a veneer wide belt sander. Two soft roller structure sanders are particularly suitable for sanding veneer. Generally, veneer is very thin, and the sandpaper can easily tear through it. By adjusting the roller speed and conveyor belt speed, the sandpaper can avoid cutting through the veneer.
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