The problem of parallelism deviation of the mold platen can be solved by precision measurement, adjusting the position of the platen, repairing or replacing the mold, ensuring the parallelism of the bed guideway, and regular maintenance.
Measures to do if the mold platen parallelism deviation
If the mold platen parallelism deviation occurs, take the following steps:
Check the Parallelism
Use a dial indicator to measure the parallelism between the moving platen and the stationary platen. Ensure that the measurements are taken at multiple points to get an accurate assessment of the deviation.
Identify the Cause
Mechanical Issues: Check for wear and tear on the platens, tie bars, or other mechanical components. If any parts are damaged, replace them immediately.
Thermal Effects: If the deviation occurs during injection molding, consider the thermal expansion of the mold. The mold may expand unevenly due to high temperatures, causing parallelism issues.
Repairing or Replacing the Mold
If wear or deformation causes a large parallelism deviation in the mold platen, you may need to repair or replace the mold. For example, in a cold runner mold, if repeated use severely wears or deforms the platen, we recommend repairing or replacing the mold.
Adjust the Parallelism
Manual Adjustment: If the machine has a manual adjustment mechanism, use it to correct the parallelism. Adjust the tie bar nuts individually to ensure equal distance between the fixed platen and the movable platen at each tie bar location.
Using a Shim: For machines without a die-hide adjustment mechanism, insert shims between the platens to adjust their inclination.
Verify the Adjustment
After making adjustments, re-measure the parallelism using the dial indicator to ensure that the deviation is within the acceptable range.
Prevent Future Deviations
Regular Maintenance: Perform routine maintenance on the injection molding machine to prevent wear and tear.
Lubrication: Ensure that all moving parts are well-lubricated to reduce friction and wear.
Thermal Management: Implement proper cooling systems to manage the temperature of the mold during injection molding.
Regular Maintenance and Inspection
Regular maintenance and inspection of the mold ensures that the parallelism of all components, including the platen, meets standard requirements. For example, in an injection molding machine, checking and adjusting the parallelism of the platen on a regular basis is an important part of preventive maintenance .
Injection molding machine supplier: Haichen Machinery
Haichen Machinery is a leading supplier of injection molding machines, with multiple branches and product lines. We offer a wide range of machines with clamping forces from 50T to 3000T, featuring high rigidity structures and equipped with imported hydraulic and electrical components.
Product Features
High Precision: Haichen’s injection molding machines are designed for high precision and reliability, suitable for various engineering plastics.
Energy Efficiency: Some models, like the E-Series, come with energy-saving systems, making them suitable for PET preform injection molding and other applications.
Customization: They can provide customized solutions based on customer requirements.
Welcome to consult us for more information about injection molding machine and mold.
