1. The design of the injection mould is the most important factor in the quality of the mould.
The first thing to figure out when designing injection moulds is if the plastic parts can be made entirely and safely. The flow of molten plastic in the mould cavity is directly affected by the design features like the gate position, runner structure, cavity layout, and exhaust mechanism. If the design isn't good, it might lead to problems like short shots, bubbles, scorching, and clear weld marks.
By doing flow analysis and structural optimisation during the design process, you may find difficulties ahead of time and make sure that the plastic fills and cools evenly in the mould cavity. This sets a firm base for mass production.
2. The design phase decides how long injection moulds will last
The longevity of injection moulds is contingent not only upon the selection of steel and the precision of processing, but also significantly influenced by the initial structural design. If the design of the mould doesn't take into account things like how the stress is spread out, how hard it is to remove the mould, and how strong the core is, the mould could have difficulties like more wear, core deformation, or even breaking during production.
A well-designed mould structure can lower stress concentration, make the mould more stable when used for high-frequency injection moulding, greatly increase the mold's service life, and lower maintenance and downtime costs in the future.
3. The design of the injection mould has a direct impact on how efficient the production process is.
The unit product cost in mass manufacturing is directly affected by the length of the injection moulding cycle, which is mostly dictated by the mould design. The time it takes to mould something will depend on how well the cooling water circuit is laid up, how smoothly the demolding mechanism works, and how stable the ejection system is.
During the design process, you may minimise the time it takes to cool and demold by optimising the cooling system and ejector structure. This will make better use of the equipment and allow injection moulds to make more qualified goods in the same amount of time.
4. The cost of making injection moulds is set at the design phase.
A lot of mould rework and extra expenditures come from not thinking things through enough during the design phase. For instance, the product structure didn't fully consider the demolding angle, so sliders or slanted tops had to be added later; the gate position design is not logical and requires the mould cavity to be changed again and again; and not enough exhaust means that the mould has to be adjusted often.
Once these problems get to the processing stage, it will cost a lot more to fix them. On the other hand, doing a comprehensive evaluation and optimisation during the design phase of the injection mould can help keep production costs down and eliminate extra processing and rework charges.
5. How the design of the injection mould affects the look and accuracy of the product
Injection mould design is very important for plastic items that need to look good and be very precise. During the design process, you need to plan where the separation line, gate marks, top pin marks and shrinkage compensation will go. It is hard to entirely fix appearance flaws or size differences if the design is not logical, even if you make changes to the method later on.
Good mould design can fix problems with how things look at the source, make products more consistent, and meet consumers' needs for quality and stability.
6. The design phase is the link between making a product and making a mould.
Designing an injection mould is not an isolated step; it is an important step between designing the structure of a product and processing the mould. Mould engineers need to think about the product's usefulness, material properties, and production conditions in detail during the design phase. They also need to give advice for how to make the product structure.
By communicating enough during the design process, it is possible to make the mould structure simpler and easier to produce without changing how the product works. This is especially crucial for mass production.
7. The design stage of injection moulds decides how many difficulties will come up later.
Most difficulties with injection moulding production may be traced back to the mould design stage, according to people who work in the industry. The more time and effort you put into the design phase, the fewer problems you'll have during trial moulding, debugging, and mass manufacturing.It's preferable to think through and address problems all at once during the design phase than to keep making changes throughout the production phase. This is also the main reason why professional mould companies put a lot of stock on early design approval.
