Magnetic attenuation: iron filings, oil impurities impede magnetic conduction;

Unstable power supply: voltage fluctuation weakens the magnetising effect;

The bottom surface of the mould is not flat: the bottom surface is not flat due to processing error or long-term use;

Poor magnetic conductivity of the mould: insufficient magnetic conductivity of the mould body;

Mould temperature is too high: the high temperature caused by continuous production leads to magnetic decay;

Inaccurate positioning of the mould: misalignment of the adsorption due to deviation of the positioning device.

What does the Qiantian Magnetic Mould Changer System do in case of ‘mould fall out’?

Qiantian magnetic mould changing systems are designed with safety at the heart of the system, and the concept of ‘fail-safe’ runs through the entire system design, so that the safety of the production equipment and operators can be fully guaranteed even under extreme conditions.

The ‘power failure protection’ function is the primary safety feature of the system, which adopts the hybrid technology of electro-permanent magnetism, requiring electric power only for the moment of charging and demagnetisation, and the clamping state is maintained by the suction force of the permanent magnet. The clamping state is maintained by the permanent magnet's suction force. Even in the event of a sudden power failure, the clamping state can still be maintained, avoiding the risk of falling moulds. This safety design does not rely on any external power supply, which fundamentally eliminates the safety risks caused by loss of pressure in traditional hydraulic systems;

The ‘redundant magnetic circuit design’ provides a two-fold safety guarantee for the system, when the system has a single point of failure, it can still maintain more than 80% of the adsorption force, to ensure that the mould will not fall off accidentally. At the same time, the magnetic plate adopts all-steel surface structure, with oil-proof and water-proof functions, adapting to the harsh environment of injection moulding workshop;

The ‘real-time monitoring and warning’ system constitutes the third line of defence. The system has a built-in magnetic induction detection device, which displays the distribution of clamping force and the safety coefficient in real time, and automatically calibrates the risk of off-loading;

At the same time, the product itself, with its modular magnetic pole design, eliminates traditional physical clamping resistance and ensures stable adsorption.

The modular magnetic pole design: adopting circular magnetic pole layout, all are independent magnetic poles, the two poles always keep the working polarity balance, and the magnetic force is concentrated without scattering. In practical applications, this feature enables moulds of different sizes and weights to be quickly switched on the same equipment, significantly improving the flexibility of the production line;

Intelligent monitoring: through the HMI interface, the operator can view key parameters such as adsorption force curve, mould position and temperature in real time, and the system will immediately issue an alarm and automatically trigger the secondary magnetisation procedure when any abnormality is detected;

Since the launch of Hashida magnetic mould changing products, they have been installed in many scenarios such as home appliances, blow moulding, automotive interior and exterior decoration, etc. The installed tonnage is between 100 tons and 3300 tons, and the actual operation status is good, and maintains the record of ‘zero’ accident.