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1. Mechanical structure stability

Frame:
Material is the key factor. High-quality Paper Plate Machine frames are usually made of high-strength steel, which has good rigidity and deformation resistance. For example, a cold-rolled steel frame can withstand greater pressure and vibration, and will not show obvious deformation during long-term operation. Observe whether the frame has a thick metal structure and check whether the welding parts are firm. Strong welding can ensure that the various parts of the frame are tightly connected to avoid looseness or shaking when the machine is running, which will affect the accuracy and stability of paper plate production.

Transmission system:
There are various transmission methods, including belt drive, chain drive and gear drive. Gear drive is ideal in Paper Plate Machine due to its high precision and stability. High-quality gears, such as precision-machined alloy steel gears, can provide precise power transmission and ensure the synchronous movement of various parts of the machine. It is also important to check the wear of the transmission parts. Excessively worn belts, chains or gears will cause unstable transmission, causing speed fluctuations or paper jams in the machine. For example, if the belt is loose or worn, it will cause uneven paper delivery, which will affect the stability of paper plate forming.
The connection between the motor and the transmission system should not be ignored. As a power source, the stability of the power output is directly affected by whether the motor is firmly installed. The motor shaft and the transmission parts should be tightly and concentrically matched, otherwise vibration and noise will be generated, reducing the stability of the machine. At the same time, the power of the motor should match the workload of the machine. Too much or too little power may cause unstable operation of the machine.

Stability of the forming system:
The forming mold is one of the core components of the Paper Plate Machine. The precision and durability of the mold are crucial to the stability of paper plate forming. The dimensional tolerance of high-precision molds is usually controlled within a very small range. For example, for a round paper plate mold, the roundness error may be controlled within ±0.1mm, so as to ensure that the shape of each formed paper plate is regular and the size is consistent. The material of the mold should also have high hardness and good wear resistance. For example, carbide steel molds can withstand frequent stamping and forming operations and are not easy to deform.
The stability of the pressure device is equally important. In the process of paper plate forming, stable pressure is the key to ensure uniform paper forming. Some advanced Paper Plate Machines are equipped with pressure sensors and feedback control systems that can monitor and adjust pressure in real time. For example, the pressure control system can control pressure fluctuations within ±5%, ensuring that stable forming pressure can be provided for paper plates under different paper thicknesses and materials.

2. Electrical system stability

Control system: Advanced Paper Plate Machines use PLC to accurately control parameters. It is necessary to check the anti-interference ability of the control system, such as using shielded cables and anti-interference filters to reduce external interference. The operating interface should be stable and responsive to avoid freezing and jamming that lead to parameter setting errors.
Electrical component quality: The quality of electrical components such as relays, contactors, and sensors affects electrical stability. High-quality components have high reliability and long life. For example, high-quality temperature sensors can accurately monitor temperature without measurement deviation.

3. Operation process stability

Paper conveying stability: The paper conveying system must ensure the stability of paper conveying speed and tension, and observe whether the paper moves smoothly on the conveyor belt without paper jams. Machines with tension control systems can adjust paper tension. For example, high-speed machines can control tension fluctuations within ±10%.
Forming process stability: Observe the shape, thickness, and edge processing of the paper plate during forming. The shape of the paper tray should be regular and without deformation defects. The layers of the multi-layer paper tray should be tightly fitted and uniform in thickness, with a thickness deviation within ±0.2mm. The edge treatment such as curling should be stable and without burrs or damage.
Long-term operation stability: Simulate actual production and let the machine run continuously to observe whether there are problems such as overheating, increased wear of parts, and decreased precision. For example, the temperature rise of key components does not exceed the safe range after continuous operation for 24 hours, and qualified paper trays can be stably produced.