Ejector Block 1) Direct ejection can be in 2 styles: ejector and ejecting block + ejector pin. 2) The ejector is designed with gradients on its four sides: 1°on the side that clings to the product and 3° on the other three sides. 3) When the core of plastic injection mold is integrated, the distance […]
For dozens of years, to produce polymer parts, the team of product development has to be reliant on the plastic injection molding process, which is a proven, robust, repeatable and ideal process for the manufacturing of high volume products, but a product development team has to consider the injection mold cost when employing the injection […]
Nylon lock A Nylon lock are used to lock A plate and B plate before runner are released out from A plate。Standard components :PLB type，the diameter depends on mold base size ： When the mold plate is thick, we need to make venting for nylon lock: All copyright reserved by plastic mold […]
Ejector sleeves 1) The application of ejectors sleeves is required when a product features a hollow pillar structure and a great height. The matching relationship between pillars and sleeves is shown in the diagram below: When a product features a pillar that is equipped with shockproof rubber, the ø3/16” + ø1.7 sleeve should be selected. […]
The function of the stop pin 1.Reduce the contact surface betwwen ejector plates and clamping plates,it is easy to control the flatness of ejector plates by adjusting the thickness of stop pins. 2.Buffer against ejector plates The material of stop pin S45C，hardness HRC40°~45° Position of stop pin 1.An STP must be installed under the RP to […]
The function of return pins Return pins’ functionis to push the ejecting plate back The Spec. of return pins Usually, when production automation is required for the plastic injection mold, a spring has to be installed under RP. See the following diagram: The spring type is TF. (Note: spring installation requirements: A. Spring preload is […]
Guide pin function: 1.Guide pin is for Accurately locate core and cavity side of plastic injection mold,make them match perfectly and move smoothly 2.Support the mold weight 3.Protect core or cavity inserts Material of guide pin: SUJ2 ,hardness:HRC 60+/-2 degree.(high-frequency quenching) The types and application of guide pin How to design the length of guide […]
Name :Hoist ring or lifting eyebolt Application: used for assembly and transport of plastic injection mold Material:SUS, 20#,25# Finish: Chrome plated or black oxidation Brand: Crossby,YOKE,JDT https://youtu.be/rVBRZzbCDlc All copyright reserved by injection mold company Sositar Mould
（1） Strive for balance and symmetry in mold layout design 1.Each mold cavity is concurrently filled under the same temperature condition ·Adopt a balanced & symmetric mold layout· For an asymmetric layout, balance can be achieved through adjustment of gate dimensions 2.Runner balance 3. Symmetric layout for large & small products […]
Note：1)If gate type is banana or submarine gate，then the distance will be added about 10mm 2)Number of precision CNC processing mold base is an integer (then mold core should be 0.5 higher) https://youtu.be/rVBRZzbCDlc All copyright reserved by plastic mold factory Sositar Mould