Slider spring hength and strength calculation
Processing size:
1. ØD2=ØD+2
2. Ll = total spring length (L) - preload value of spring (N) - slider core pulling distance (L2)
Spring length calculation: (refer to picture 1 for length calculation)
★L≥H/(36%(compression percentage)-10%(pre-compression percentage)
Assuming the core pulling distance (L2)=15m, the total length of the spring L≥15/(36%-10%)=15/0.26=57.7
As we can see that the total length of the spring (L) should be taken as 60mm
Spring hole depth L1=L-L*10%-L2=60-60*10%-15=39mm

Strength requirements of the slider spring:
1. When the spring is applied to the core pulling of the slider, the load strength must be checked;
2. The weight of the slider on the top side must be kept within 2/3 of the maximum load of the spring; the weight of other sliders must be kept within the maximum load of the spring;
3. When the same slider uses multiple springs, the maximum spring load of the slider is the sum of the loads of all springs;
4. When calculating the maximum load of the slider spring, the compression amount should be in the pull-out state of the slider;
The spring load is calculated as follows:
Picture 2:
1. The slider is in the extracted state, so the length of the spring after being compressed is L1;
2. Assume that the free length of the spring is L;
Calculation way of spring load: load = spring constant X compression
That is: load = spring constant X (L-L1)
The spring constant can be obtained from the standard parts data of the corresponding brand (such as MISUMI);


Plastic injection mold runner system design
Jan 16, 2022The gate is the connecting part between the runner and the cavity, and is also the end part of the injection mold gating system, the molten plastic enters the cavity and core side through the gate...view
Limitations of gas-assisted injection molding technology
Apr 25, 2022Gas-assisted injection molding technology has obvious advantages in thick wall thickness and pipe parts, but this technology still has many limitations, which are mainly reflected in the following...view
Side gate of plastic injection mold runner system design
Jan 23, 2022In order to get the best injection quality, the gate type must be selected carefully, the coommon gate tyeps are: direct gate, side gate, pin-point gate, sub gate,valve gate of hot runner etc. Among...view
Pin-point gate of plastic injection mold runner system design
Jan 24, 2022In order to get the best injection quality, the gate type must be selected carefully, the coommon gate tyeps are: direct gate, side gate, pin-point gate, sub gate,valve gate of hot runner etc. Among...view
What is Ejection Molding?
Dec 28, 2021The process to get injection molded products is called injection molding, or called injection. Injection molding is an important method in polymer molding processing, it is characterized by a short...view
Conformal cooing channel of plastic injection mold
Feb 23, 2022The conformal cooling gate is a new type of mold cooling gate based on 3D printing technolog, because of its processing characteristics, the conformal cooling gate can fit the shape of the product...view
English
русский

_20250311083139A052.webp)

_20250310164515A048.webp)