Injection mould for IML drinking glass: –

Creating an injection mould for in-mould labelling (IML) drinking glasses involves a specialized process tailored for plastic injection moulding with integrated labelling. 

Here’s a detailed guide:

1. Designing the Drinking Glass and Label: Start by designing the drinking glass along with the label that will be inserted during the injection moulding process. Ensure that the design accounts for the injection moulding process, including draft angles, wall thickness, and features for the label insertion.
2. Material Selection: Choose the appropriate plastic material for both the drinking glass and the label. Consider factors such as clarity, durability, and compatibility with the injection moulding process.
3. Designing the Mould: Create a mould design that accommodates both the drinking glass and the label insertion. This may involve designing cavities, cores, and gating systems that allow for precise injection of the plastic material and accurate placement of the label.
4. Manufacturing the Mould: Once the mould design is finalized, manufacture the injection mould using CNC machining or other appropriate methods. The mould should be made from high-quality steel to withstand the rigors of the injection moulding process and ensure longevity.
5. Integration of Labelling System: Incorporate the labelling system into the mould design. This typically involves mechanisms for picking up the label from a roll or stack, placing it into the mould cavity, and securely holding it in place during the injection moulding process.
6. Injection Moulding Process: Set up the injection moulding machine according to the specifications of the mould and the plastic material being used. Ensure that the machine is calibrated for precise control of temperature, pressure, and injection speed.
7. Label Insertion: During the injection moulding process, the label is inserted into the mould cavity and held in place by the labelling system. The molten plastic material is then injected into the mould, encapsulating the label within the walls of the drinking glass.
8. Cooling and Ejection: Allow the injected plastic to cool and solidify within the mould cavity. Once cooled, eject the finished drinking glass from the mould using the ejection system.
9. Quality Control: Inspect each drinking glass for defects, ensuring that the label is properly aligned and securely bonded to the plastic. Perform any necessary finishing operations, such as trimming excess plastic or polishing the surface.
10. Packaging and Distribution: Package the finished drinking glasses according to your requirements and distribute them to your customers or retail outlets.

Creating an injection mould for IML drinking glasses requires careful attention to detail and expertise in both mould design and injection moulding processes. It’s often beneficial to work with experienced mould designers and manufacturers to ensure the success of your project.