Precautions for using SP smart power injection molding machine

1. Use and maintenance of the clamping system of SP smart power injection molding machine

Correct operation of the five-point elbow clamping structure

Inspection before mold closing: Ensure that the mold is installed flat to avoid uneven force on the elbow due to eccentric loading, which affects the clamping accuracy.

Lubrication and maintenance: Regularly add grease to the elbow connecting rod, shaft pin and other moving parts to reduce friction loss and maintain low contact stress operation.

Mold opening stroke control: Although the equipment provides a larger mold opening stroke, it needs to be adjusted according to the actual needs of the mold to avoid excessive mold opening causing energy waste or mechanical wear.

Avoid overload operation

Although the rigid square plate and tie rod structure of the SP smart power injection molding machine can reduce the main stress, it is still necessary to strictly produce according to the rated clamping force to prevent long-term overload from causing deformation of the tie rod or fatigue of the square plate.

When molding deep-cavity products, it is recommended to use the segmented pressurization mode to gradually increase the clamping force to avoid instantaneous high-pressure shock.

2. Mold installation and adaptation optimization

Mold installation specifications

Alignment adjustment: The mold must be aligned with the center of the injection molding machine to ensure that the square plate is evenly stressed and prevent eccentric load from affecting the life of the tie rod.

Tightening inspection: Use a high-precision torque wrench to tighten the mold screws to prevent mold displacement or damage during production due to loosening.

Mold protection measures

Low-pressure mold protection function: Enable low-pressure protection during the mold closing stage to prevent the mold from being damaged by foreign matter or incompletely ejected products.

Regular cleaning: The mold parting surface, ejector pin hole and other parts need to be kept clean to prevent residual plastic from affecting the fitting accuracy.

Key points for the operation of the ejection system

Use of the forced retraction device

After the ejection is completed, the forced retraction function ensures that the ejector pin is fully reset to avoid interfering with the next mold closing.

The air pressure or hydraulic system of the retraction mechanism needs to be checked regularly to prevent ejection delays due to leakage.

Ejector stroke adjustment

Freely adjust the ejector stroke according to the product demoulding requirements to avoid product deformation or ejector pin jamming caused by excessive ejection.

For deep cavity products, it is recommended to use multi-stage ejection, first slow and then fast, to ensure smooth demoulding.

4. Mechanical insurance and safe operation

Use of side-mounted mechanical insurance structure

Test the insurance device regularly: manually trigger the mechanical insurance to ensure that it can cut off the power in time under abnormal circumstances to protect the safety of equipment and personnel.

It is forbidden to bypass the insurance illegally: the insurance device must not be removed or shielded under any circumstances, otherwise it may cause serious accidents.

Safety operation specifications

Emergency stop button inspection: test the emergency stop function before starting the machine every day to ensure its sensitive response.

Protective door interlock: the safety door must be closed when the equipment is running to prevent arms or tools from entering the dangerous area.

5. Daily maintenance and fault prevention

Lubrication and cleaning

Moving parts such as elbows and guide rails need to be filled with grease every week to avoid dry friction.

Replace the filter element of the hydraulic system regularly to prevent oil contamination from causing valve group jamming.

Electrical system inspection

Regularly tighten the motor and servo drive terminals to prevent faults caused by poor contact.

Check the working status of the heating coil and thermocouple to ensure accurate temperature control.

Common fault troubleshooting

Mold locking is not synchronized: check whether the elbow is lubricated enough, or adjust the hydraulic system pressure.

Ejector stuck: clean the impurities in the ejector guide sleeve and check whether the air pressure of the retraction device is normal.