Stack Molding For Plastic Injection Molding

Stack Molding For Plastic Injection Molding,

Stack molds are some of the most astonishing output tools to be found anywhere. The engineering and craftsmanship that goes into a stack mold is truly a marvel.

For the layman, who has never built a plastic injection mold, it might look like a big, fancy piece of machinery that produces plastic widgets. Yet, from the perspective of an plastics mold maker, stack molds report a very high level of expertise.

Related Stack Molding For Plastic Injection Molding.

What is a stack mold?

Recommend Stack Molding For Plastic Injection Molding.

There are numerous variations on the theme of stack molds, but some base features are:

Built for very high output runs Have a one cavity and manifold cores Use indexable cores to injection mold multi-materials Have the quality to do manifold operations in the molding cycle

Basically, a stack mold has a stationary "A" half, and at least two "B", or moveable halves. They are similar to the rotary molds that have been in use for many years, but are vertical rather than horizontal.

This means that the moveable cores rotate about a vertical axis, rather than a horizontal. Also, the stack mold is very compact and has a much smaller footprint.

Are stack molds expensive?

Yes, stack molds are quite expensive. That is why a high volume is required to explicate their expense. However, especially in medical or cosmetic molding, the Roi is quickly realized.

Considering the titanic whole of engineering and mold production involved, the price is understandable. Designing and construction a stack mold is not for beginners, or mold makers who cut corners! Plastic injection molding is not easy, and stack molding is on an entirely new level.

What are the applications for stack molds?

Because they are for high output products, the base applications are for cosmetics and consumables, such as deodorant or toothpaste containers. Automotive and medical products are also frequently produced using stack molds.

More and more products are being designed to use soft overmolding, such as toothbrushes or hairbrushes. These are exquisite applications for stack molding.Because the part is injection molded, ovemolded, cooled and ejected in sequential cycles, output costs can be minimized.

What are the benefits of stack molding?

Stack molds are available in numerous configurations to meet a range of molding demands. Stack molding offers an frugal and sufficient manufacturing explication for the output of manifold plastic parts. Injection molding companies are always finding for more sufficient way of molding, and for the right

A few of the benefits of the stack molding process include: Increased output efficiency (productivity)

Decreases whole of machines required
Lower engine size requirement vs.. Multi-cavity single face molds
Produce twice as many parts without expanding press size or clamp tonnage, which greatly reduces part costs
Set-up time and run-time costs are divided by all the parts produced
Producing the front and back parts of a key fob at the same time is a good example of an application for stack molding
Mold ejection functions are self-contained, no supplementary labor or steps required
Stack molds are not for everyone!