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Pennsylvania’s
principal thermoplastic injection molding manufacturer,
Aline Components, Inc., creates internal and external threads
in custom plastic parts or components during plastic injection
molding process via unscrewing molds. The result: secondary,
thread-cutting operations are avoided and cost-per-part
and time-in-production are reduced.
At Aline, we offer tapping as part of our
value-added services, however, injection molded threads
tend to be stronger than tapped threads. For tighter tolerances
and smoother, denser molded coatings than those produced
by thread-cutting operations, rely on unscrewing mold designs
from Aline Components.
Advantages of Aline’s
Unscrewing Molds
- Hydraulic, mechanical, or electrical driven
designs
- Multiple bearing sets
- Leak-free seal housing ensures long-term
performance
- Integral gear core design
Today, many custom plastic parts or components
have detailed threads, which make ejecting the mold using
knock-off methods virtually impossible. To avoid thread
damage, such parts must be unscrewed from the mold. External
threads can be centered on the mold parting line or molded
in both mold halves. However, because mold halves tend to
involved, external threads are prone to parting-line flash
or mismatch and require slides or side actions. Internal
threads can be on collapsible cores or in unscrewing molds.
Applications
of Aline’s Unscrewing Molds
Our unscrewing mold designs can be used to manufacture a
wide range of custom plastic parts or components including,
nuts and bolts, sprinkler heads, bottle caps and closures,
personal care and cosmetics, automotive parts, and a host
of other medical, pharmaceutical, or consumer goods.
For a cost-effective thermoplastic injection
molding process, it is critical that molds move at high
speeds to clear molded parts quickly and move on to the
next cycle immediately. To increase the productivity of
our thermoplastic injection molding company and maximize
the performance of unscrewing molds, Aline has developed
techniques such as utilizing bearing support cores, robust
carriage assemblies, and integral gear/core designs.
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