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
Three plate mold VS Two plate Mold Appearance difference Between two plate mold and three plate Mold With regard to appearance, the biggest difference between the two plate mold and the three plate mold is that there is a stripper plate between the upper clamping plate and the cavity plate of the three-plate mold. Structures difference Between […]
What should we pay attention to the ejecting system? 2.1 Keep at least a distance of 3/32” between ejector hole edge and other holes; 2.2 A clearance of 1/64’’ should be kept for ejector holes on the ejector plate; 2.3 A clearance of 1/32’’ should be kept for ejector holes on the plate of injection […]
1)Ejector position:Ejected 10 – 15mm away from the edge of molding product (controlled by the retainer plate) 2)Ejection Types 1.Pin Ejector 2.Blade Ejector 3. Ejector Sleeve 4. Stripper Bar Ejector 5. Stripper Plate Ejector 6. Lifter 7. Air Ejector 3)Basic Ejection Requirements Product evenly ejected without ejection marks, unbroken and in shape; Main ejection parts: […]
【LIFTER】 In essence: a combination of the ejection mechanism and the side-core pulling mechanism. Stroke：S=undercut+（1～3）mm Thickness：8～12mm Angle：not more than 15° Ejectors are allowed to place near the lifters.but not too many. 1、【lifter without base】 Thickness (D)＝S (undercut)＋（2/3Ø）mm Width (W)≥12 （If the width less than 12mm,use lifter with base） 2、【Lifter with base】 Stop block：Steel […]
Mold Trial Steps and Instructions Mold Trial Steps (1) Before mold trial, dry the raw materials first. All materials need to be dried except PE/PP. It is a standard practice to perform the trial with new materials. (2) Mount the mold onto the center hole and keep it aligned. It is enough to set the clamping […]