Steel springs are generally not used as structural parts and can not be used as parts that perform an action alone. If nitrogen springs can be used, priority is given to nitrogen springs. In some special cases, when other structures can not be realized due to mold layout or action needs, steel springs can also be used alone to complete the action, but appropriate auxiliary protective measures should be taken, just in case.
The steel spring ejection system is shown in figure 1 below.
Design specifications:
1. Where nitrogen springs are available, engineers should use nitrogen springs.
2. In order to ensure force balance, it is best to install one spring at each of the 4 corners, and the spring's position is preferably symmetrical.
3. In order to ensure the safety of the mold and prevent spring failure from causing the clashed dies, the stroke switch should be installed on the mold.
4. If the nitrogen spring is installed, as shown in figure 2, add the nitrogen spring sleeve to the ejector plate to increase the effective space.
