Several Joint Methods for PVC Conveyor Belts

The primary joining methods for PVC conveyor belts include the following:

1.  **Finger Joint (Toothed Joint):** This is a common and highly secure method for joining PVC conveyor belts. The belt ends are first delaminated (split into layers) and then cut into a tooth-like pattern—hence the name "finger joint." It is simple, convenient, and allows for rapid hot-melt bonding. The resulting joint distributes stress evenly, making the belt easier to clean.
2.  **Layered Finger Joint:** This is a common technique for creating endless (loop) belts; it enhances joint strength and effectively prevents issues such as the "fingers" of the joint lifting or curling.
3.  **Lap Joint:** This method is suitable when dismantling the conveyor machinery is inconvenient. The belt ends are delaminated and then undergo a special grinding process to create an overlapping joint.
4.  **Steel Fastener Joint:** A method that allows for repeated disassembly. There are pros and cons: the advantage is that it avoids installation difficulties associated with endless belts; the disadvantages include difficulty in cleaning, susceptibility to bacterial growth, and a tendency for the joint area to tear over time, resulting in a shorter service life.
5.  **Plastic Fastener Joint:** These are primarily used for specialized applications, such as replacement belts for metal-detecting conveyor systems.

Other methods include mechanical fasteners, cold bonding, and hot vulcanization. The choice of joining method in practice depends on specific requirements and operating conditions.