Saturday, April 10, 2021
No menu items!
Home Internet Plastic injection mold structure

Plastic injection mold structure

There is no doubt that plastic injection is the best way to manufacture plastic parts. It is further classified categories depending on the features like mold structure, tool steel, mold opening, SPI standard, part volume, and the feeding system.  Choosing the right old is important as it directly impacts the costs and product quality.

Injection molding is a technique that is mostly used to produce a high volume of complicated plastic parts. First, the material is heated to its melting point and then pushed in an injection port under high pressure until the cavity is filled.

Designing plastics parts is not an easy task as it depends on many factors. First, the plastic parts design should produce a final product that works as intended. Also, the parts produced should be able to integrate during assembly.

Let us look at the mold structure into fine details.

2K Mold

2K mold also popularly known as two-shot involves processing two different polymers. Also, it can be processing two different colors using the injection molding process. Furthermore, this is the best technology that enables the integration of several functions to an injection molded product.

The main advantage of using the 2k molding structure is that the polymer is injected when it’s still hot before shrinking. So it prevents the risk of burrs formation on the second component. Also, good molecular adhesion is enabled following the virginally clean surface.

The cycle time gained is yet another significant advantage. It makes the process constant and without the need for manual insertion. So the first component has no risk of getting damaged.

ALSO READ  Best Ways to Boostup Your Mac Boot

Insert Mold

Insert molding structure involves embedding a ceramic, plastic, or metal part in plastic to improve the product structure. This is a widely used plastic design in cooking ware, automobile, knobs, devices, household equipment, electrical components, and instruments.

Insert molding is good especially when it comes to reducing the weight and the size of the component. Besides that, insert molding reduces labor and assembly costs. Another advantage of using insert molding plastic parts design is the enhanced flexibility, reliability, and improved part strength.

ALSO READ  Best Sites to Download Music, TV series, Movies and Games

Insert molding and injection molding do not have a big difference as both use the same injection molding machine. The molten raw material is injected into a plastic mold and then solidified b the use of cooling systems. Furthermore, insert mold also uses similar materials to injection molding. For example, it uses the same mold structure, same mold steel, and the same molding machine.

Over Mold

Over molding referrers to the process by which, a secondary material is molded onto a rigid plastic material using pressure, heat, and liquid silicone. TPE over-molding forms a strong bond between the TPE materials if properly selected. So it will be suitable for endues in its preferred environment.

Nowadays you do not need adhesives or primers to form a strong bond. The most important advantage of using over-molding is that it improves the functionality of the product and the overall aesthetic design. Besides, man’s different colors can be created by the over-mold structure.

Unscrewing Mold

If you are looking for high quality threaded parts and complex plastic shapes then the unscrewing mold is the most suitable technique. Unscrewing mold is usually used to produce a large number of threaded plastic parts for the following items.

  • Cosmetics packaging
  • Bottle caps
  • Shampoo bottles
  • Container lids
  • Consumer goods
  • Sprinkler heads
  • Automotive parts
  • Nuts and bolts
  • Pharmaceutical parts
ALSO READ  Some dos and don’ts of web design for web developers

Unscrewing mold is the best plastic part design for making such parts that cannot be made using the other methods. Unscrewing mold machines operate at a high speed so as it can produce many units at a low cost.

Plastic injection mold structure

Thermoforming mold, cast mold, and blow mold structures are very simple. Conversely, the injection mold, transfer mold, and pressure mold are very complex

Molding parts: punch, die, forming the core. These are used to mold the products on the outside, inside and on the side hole, thread parts, and side concave.

ALSO READ  A Guide To FFC & FPC Connectors: What You Need To Know

Supporting fixed parts: they include a fixed plate, mold base plate, pad block, supporting plate, and support pressure.

Pull out core parts: slider, inclined pin. Products are demanded b opening the mold out to extract the activity of the core. 

Guide parts: Guide sleeve, guide column sleeve. They are used to determine if the push mechanism movement or mold.

Push out parts: push tube, push block, push-piece ring, push plate, push rod fixed plate, and pushrod. These are used to make products remolding. Visit this site to learn more about plastic parts design.


The plastic injection mold comprises of man parts that allow it to produce the most complex plastics. The mold structure is further divided into parts such as the unscrewing mold, over mold, insert mold, and 2k mold. Besides, the plastic injection mold structure is further divided into parts such as molding parts, guide parts, push out parts, supporting fixed parts, and pull out core parts.

ALSO READ  A Guide To FFC & FPC Connectors: What You Need To Know

Latest News

Top Best IPTV for Windows or PC in 2021

You've come to the correct location if you want to watch TV on a streaming platform. As you may...

Windows 10 Compatibility Checker Test Your PC in 2021

According to Microsoft, Windows 10 has more than 700 million active users, making it the most common computer operating...

How to Unlock SWF ?Best swf players to Windows/macOS

Flash was the go-to web technology for nearly all browser-based games on the Internet in the pre-Facebook days of...

Top 10 Best Gameboy Advance Emulators PC or Android

Best GameBoy Advance emulator is one of the most popular handheld video game consoles. If you want to use...

Top 20 Best Roblox Games That You Want Play In 2021

Perhaps the most popular forum for young gamers is Roblox, and it has a vast range of kid-friendly games....

Top 10 Best Anime Torrent Websites In 2021

There are millions of fans worldwide of all types of animation art, also referred to as Anime. The fact is...

Top 10 Best Latest Fake Email Generator For 2021

Do you scout for a reliable fake email generator ? Well, if you are, then you will be benefited...

Top 12 Best Torrent Search Engine Fast Running in 2021

You may have come across many torrent websites which use P2P file-sharing technology if you are a frequent torrent...