How to adjust the locking force of injection molding machine

The locking force of an injection molding machine is a critical process parameter that has a direct impact on product molding quality and mold service life. Below, I will give you a full explanation of how to modify the locking force of the injection molding machine:
1. Determine an appropriate locking force.
Determine the minimum required clamping force with an appropriate safety factor based on the product's size, structure, and mold properties, which is typically 1.2-1.5 times the required clamping force. Excessive clamping force accelerates mold wear, whereas insufficient clamping force leads to product flaws.
2. Methods to alter the locking force
Mechanical injection molding machines: To control the locking force, alter the preload force or air pressure of the compression spring. Hydraulic injection molding machines: adjust the pressure of the locking oil circuit to adjust the size of the locking force.
3. Precautions for adjustment
First, evaluate the minimal locking force required based on the features of the product and mold.
Gradually raise the clamping force until the product forming quality matches the standards, and avoid using too much clamping force to prevent mold wear. For different items and molds, the proper clamping force must be redetermined.
4. Inspect and monitor the locking force.
Check the quality of the product molding. If there are problems like condensation and warping, increase the clamping force.
Inspect the mold's surface wear on a regular basis and increase the locking force as needed.
Install a mold locking force monitoring device to track changes in mold locking force in real time.
5. Improve the locking force control.
Programmable locking force control is used based on the features of each product.
In conjunction with closed-loop control of injection molding process parameters, dynamically modify the locking force.
Create a correlation model between locking force and product quality to enable intelligent adjustment.
By using the methods outlined above, you may correctly control the locking force of the injection molding machine, ensure product quality, and increase the mold's service life. If you have any further queries about practical operation, please feel free to contact us at any time.