Injection molds have various functions, but what do they all do? This article will discuss the most common ones: Moving/fixing template, Support column, Connecting screw, Cooling channels, and ejection. We’ll also cover their uses and benefits. So read on to discover and what injection mold design & manufacturing can do for your business. Whether you’re looking to design a product or simply need to make a few simple repairs, the injection mold can help.
Moving/fixing template
While all injection molds are made from the basic structure, movable or fixed templates are integral parts of the molding process. These templates must meet specific manufacturing accuracy, performance, and economic benefits requirements. Portable and fixed templates can serve different purposes. Both types are interconnected and must be used correctly to ensure the proper functioning of the whole mold.
Support column
The support column of an injection molding machine is a critical part of the overall construction of the mold. It helps the mold support the entire projected area of the cavity. Support pillars are generally made of steel and have a diameter of approximately one to two millimeters. One or two rows of support pillars can increase the permissible cavity area four to nine times. The support pillars are mounted between the backup and rear clamping plates.
Connecting screw
A connecting screw for an injection mold has many different qualities. One of these is the L/D ratio of length to diameter ratio. The L/D balance is critical in generating the appropriate injection pressure. The typical screw diameter is 12 to 20 mm, while the screw length is its longest dimension. Generally, a screw with a more excellent L/D ratio will be gentler when shearing. Here are a few things to consider when choosing a connecting screw for your mold.
Cooling channels
A successful injection molding process relies on uniform heating and cooling of the thermoplastic resin during the molding process. This process is complex but essential because it keeps the resin from developing any thermal stress during the molding process, resulting in defects. In addition, thermoplastic resin does not like to remain molten for too long, so it will quickly become useless if the channels are not cooled. This article will discuss the various methods to ensure proper cooling of your injection mold.
Machine-side granulators
Machine-side granulators are two-fold. One is a feed mechanism for coarse material, and the other is a metering and feeding device. The latter allows for efficient, quiet, in-situ granulation of plastic scrap.
Precision
A key factor for the precision of injection molding is the accuracy of the overall mold structure. The general structure of the injection mold reflects the final effect of the product. The mold’s gate system, ejection mechanism, and water transportation system should be precise and conducive to the post-processing orientation of the product. Depending on the application, different levels of precision may be required.
Cost-effectiveness
Injection molding is a highly adaptable process that allows good design flexibility in part geometry. However, it can be expensive to manufacture, requiring considerable time and money to build and tool the mold. To reduce costs, consider several ways to design and build a mold. The following strategies can help you cut costs and improve the quality of your parts while maintaining a reasonable budget. You can also consider outsourcing this process if you can save money by avoiding the high costs of creating a mold.
Environmental friendliness
While injection molding produces a large amount of scrap, it has become more environmentally friendly in recent years. However, scrap material contributes to landfill waste, increases carbon footprint, and is more expensive than a reusable product. With some design innovations, manufacturers can reduce the amount of scrap produced and lower their overall environmental impact.
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