What are the precautions for lifts in injection molds?
In general, the ejection distance of lifts in injection molds is not long, and it is easy to break. Injection molds that can achieve automated production have a longer ejection distance than semi-automatic molds.
To prevent uneven force when the robot picks up the parts, the following aspects should be noted when processing injection mold lifts:
1. The angle of lifts is 3-15 degrees, with the optimal range being 3-8 degrees. When the angle of the lifts is greater than 12 degrees, except for the strength, it is also necessary to add a support bar to prevent the lift from deforming and breaking due to excessive torque during production.
2. The most common phenomenon that occurs during injection molding is that the product sticks to the lift. A common way to solve this problem is to increase the draft angle. When designing, it is necessary to avoid the appearance of too many ribs on the lifts in molds.
3. The lifts should not be too thin. The minimum thickness of the lift in small products is 3mm. the minimum thickness of the lift in products larger than 500mm should not be less than 25mm to prevent the lift from deforming and breaking due to excessive torque during production.
4. Lifts in injection molds are a type of ejection mechanism used to eject products. In areas where there are lifts, other ejection mechanisms are not required to avoid interference between the lifts and another mechanism. Interference between the lifts and others needs to be verified by simulation.
