1. Inspection of mold opening and closing under low pressure

模具分快、中、慢各3次开合，在开合过程中有无异常声响，有无阻滞现象；

The mold shall be opened and closed three times for fast, medium and slow respectively, and whether there is abnormal sound and blocking during the opening and closing process;

模具开合动作顺畅，有无干涉发生。

The opening and closing action of the die is smooth without interference.

2. 模具顶出系统的检查（低压下）

2. Inspection of mold ejection system (under low pressure)

顶出动作分快、中、慢各顶出3次，检查有无异常现象；

The ejection action is divided into fast, medium and slow ejection for 3 times respectively, and check whether there is any abnormality;

平面处的顶针（司筒）顶出后，是否会发生松脱或卡死；

Whether the thimble (cylinder) at the plane will be loosened or stuck after being ejected;

斜面顶针或司筒装置，是否加定位销(防止松动或转动）；

Whether the inclined thimble or cylinder device is equipped with positioning pin (to prevent loosening or rotation);

顶出系统（顶针或顶块）顶出时是否有异常响声以及振颤。

Whether there is abnormal sound and vibration when the ejector system (ejector pin or ejector block) is ejected.

3. 模具复位的检查

3. Inspection of mold reset

模具分快、中、慢速度各复位3次，观看是否能回到位（复位）；

The mold is reset 3 times at fast, medium and slow speeds respectively to see whether it can return to the position (reset);

复位后，斜顶针端面不高于模芯0.1mm或与模芯平齐；

After reset, the end face of the oblique thimble shall not be higher than 0.1mm or flush with the mold core;

复位用限位咭掣接触是否良好；

Whether the reset limit card is in good contact;

顶针顶出时是否与行位的动作发生干涉（滑块是否回到位）；

Whether the ejector pin interferes with the action of the row position (whether the slider returns to the position);

模具是否装有顶针复位装置（机械式）。

Whether the die is equipped with thimble reset device (Mechanical).

4. 行位（滑块）动作的检查

4. Inspection of line position (slider) action

模具按快、中、慢各3次开合模，观察行位动作是否顺畅；

The mold shall be opened and closed three times for fast, medium and slow respectively, and observe whether the movement of the row position is smooth;

行位回位是否正常，与顶针是否发生干涉；

Whether the line return is normal and whether it interferes with the thimble;

行位定位是否牢靠；

Whether the row position positioning is firm;

液压抽芯装置动作顺序先后情况；

Action sequence of hydraulic core pulling device;

行位在空运行中有无拉伤、“卡死”现象。

Whether the line position is pulled or stuck during empty operation.