In the medical field, the processing requirements for injection molding molds are particularly strict, and it is crucial to choose a manufacturer with rich experience and superb technology. As a member of Yize Mold, I will delve into the processing ideas for medical injection molding molds with you, aiming to provide useful references for industry colleagues.

1. Simplified Design for Two-color Injection Molded Parts
   For two-color injection molded parts, we should strive to simplify their structure and transfer the complexity to the mating parts. Especially for non-transparent parts, the width of the ribs should be controlled between 0.5-0.6mm to effectively avoid shrinkage.

2. Symmetric Layout of Mold Guide Pillars and Bushings
   The guide pillars and bushings of the mold base need to be symmetrical up and down, left and right, and the front and rear molds also need to be symmetrical. This is key to ensuring the stability and precision of the mold.

3. Design Principle of Rotating the Rear Mold and Fixing the Front Mold
   In mold design, the rear mold should be designed to rotate 180 degrees, while the front mold remains fixed. This design principle helps optimize the injection molding process and improve production efficiency.

4. Matching Product Spacing with Injection Machine Nozzle Spacing
   The spacing of the products should be based on the spacing of the injection machine nozzles. It should be noted that some two-color injection machines abroad have adjustable nozzle spacing, while most in China are not adjustable. Therefore, this factor needs to be fully considered in the design.

5. Application of Independent Ejection Systems
   The mold should adopt two independent ejection systems, and two ejector pins should also be equipped. For the two identical products in the rear mold, their ejector pins should be designed consistently and form a rotating relationship, rather than a translating relationship.

6. Spring Reset Mechanism for Ejector Plate
   The ejector plate should adopt a spring reset mechanism, rather than a screw-forced reset. This is because the rear mold needs to rotate, and the spring reset mechanism can better adapt to this requirement.

7. Symmetric Design of Side Locks
   The side locks should be designed on the four sides of the mold center, and the front and rear molds should be symmetrical. This design ensures that the rear mold can align accurately with the front mold after rotating 180 degrees.

8. Waist-shaped Design of Ejector Pin Holes
   When the spacing between the gate points and the injection machine nozzles is inconsistent, the ejector pin holes should be designed in a waist shape. This is because the spacing of the ejector pins on the injection machine is usually not adjustable, and the waist-shaped design provides greater adjustment space.

9. Layout Consideration for Product Arrangement
   Special attention should be paid to the direction of the parallel nozzles provided by the customer, whether it is the X-axis or Y-axis, as this will directly affect the layout of the product arrangement. Therefore, this factor needs to be fully considered in the design to ensure the smooth progress of the injection molding process.

10. Design of Water Inlet and Outlet Directions
    The directions of water inlet and outlet should be designed on the top and bottom sides, and the inlet and outlet of each circulation water should be on the same surface. This is because the rear mold needs to rotate 180 degrees, and if the water inlet is on the top and the outlet is on the bottom, this requirement cannot be met. At the same time, the size of the mold base also needs to be controlled within the height of the water outlet trough of the injection machine to ensure the smooth connection of the water.

11. Arrangement of Products for the First Injection
    The products for the first injection should be arranged on the non-operating side. In this way, after the first injection, when the products rotate 180 degrees for the second injection, they will be exactly on the operating side, making it convenient to take out the products.

12. Design of Mold Clamping Positions for Export Molds
    For export molds, their mold clamping positions should be designed on the operating side and non-operating side, rather than the top and bottom sides. This is because the products of export molds usually require fully automatic production, and this design can better meet this requirement.