There are three main types of unscrewing molds: hydraulic, mechanical, and servo-driven.
Each type has its unique advantages and applications in the manufacturing process.
Each type has its unique advantages and applications in the manufacturing process.
Unscrew mold
Reliable &Creative Tooling Solution.
With Helical Spindle mechanical design，Mold Opening and Unscrewing at the same time, thus molding cost saving.
With Helical Spindle mechanical design，Mold Opening and Unscrewing at the same time, thus molding cost saving.
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Unscrewing mold with hydraulic cylinder driven rack and gears.
Internal thread to be released
by hydraulic cylinder. See right sides of slides for tool construction and below 2 movies operations. |
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Rack and threaded core unscrewing mold
Mechanical rack and threaded core of driving the unscrewing activity. |
Rack and threaded core unscrewing part
Plastic part of only internal thread demolding by rack and threaded core mechanism. |
Rack and threaded core with hydraulic cylinder driving the rack
Hydraulic cylinder required force calculated in advance to ensure smooth and sufficient drive of gear train of force transmission. |
Rack and threaded core with gears ratio to unscrew part
Gear ratio is calculated to specific requirements with standard gears and rack internal mold components. http://www.injectionmoldingsupplier.com/blog.html |
Helical spindle unscrewing mold
Mechanical helical spindle for driving the unscrewing activity.. |
Unscrew mold with mechanical helical spindle
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Helical spindle unscrewing plastic part
Plastic part of only internal thread demolding by helical spindle mechanism. |
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Electric motor unscrewing mold
Electric driven unscrewing mold design for clean and easy set up for each production molding. |
Electric motor driven gear wheel
Gear wheel for reliable and accurate unscrewing control. |
Electric motor unscrewing plastic part
Parts with both internal thread (demold by unscrewing) and external thread (demold by external slides). |
Electric motor unscrewing plastic part
Multi cavities tooling with 2 different parts of both internal and external threads but with simple and reliable mold design for clearing mold parts quickly. |
Unscrewing mold
Servo Motor driven unscrewing mold design |
External threaded mold
De-molding by external 2 half slides |
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Internal and external thread mold
Servo Motor driven unscrewing mold with internal thread in plastic part. unscrewed by means of mechanical chain |
Unscrew plastic parts (by mechanical helical spindles)
Plastic material to be POM |
Unscrew plastic parts(by electric motor)
Internal thread to be demolded by unscrewing electric motor and external thread by 2 mechanical halves slides. |
Unscrewing mold components set
One set of 4 components in with interchangeable inserts for precision multi-cavity plastic injection mold. |
Unscrewing (internal thread) plastic part
Plastic caps with internal thread of material PP which demold by unscrewing but not by bumping off. |
Unscrewing plastic injection molding parts applications
Many plastic parts have detailed threads whcih make ejecting the mold using bump-off methods virtually impossible. To avoid thread damage, such parts must be unscrewed from the mold. External threads can be parted and molded in both mold halves. Internal threads can be on collapsible cores or in unscrewing molds.
We design internal and external threads in custom plastic parts during plastic molding process through unscrewing molds. Injection molded threads are stronger than tapped threads, tighter tolerances and smoother than those produced by thread-cutting machining.
Our plastic injection design molds with : - integral gear core design
- hydraulic, mechanical , or electric driven designs
- cost effectives to clear molded parts quickly
- productive by utilizing robust carriage assemblies
- maximize performance of unscrewing molds
- avoid damaging threads
Applications in following major areas: - bottle caps and closures
- nuts and bolts
- sprinkler heads
- personal care / cosmetics packaging
- automotive parts
- consumer goods
The high operation speeds resulting from the quality mold design ,components and robustness of mechanisms integrated into our molds, make them the first choice for mass production. We provide free of charge advice and solid help to establish a reliable cost competitive strategy from the start of your projects. Our solutions are specifically adapted to meet your needs.
We design internal and external threads in custom plastic parts during plastic molding process through unscrewing molds. Injection molded threads are stronger than tapped threads, tighter tolerances and smoother than those produced by thread-cutting machining.
Our plastic injection design molds with : - integral gear core design
- hydraulic, mechanical , or electric driven designs
- cost effectives to clear molded parts quickly
- productive by utilizing robust carriage assemblies
- maximize performance of unscrewing molds
- avoid damaging threads
Applications in following major areas: - bottle caps and closures
- nuts and bolts
- sprinkler heads
- personal care / cosmetics packaging
- automotive parts
- consumer goods
The high operation speeds resulting from the quality mold design ,components and robustness of mechanisms integrated into our molds, make them the first choice for mass production. We provide free of charge advice and solid help to establish a reliable cost competitive strategy from the start of your projects. Our solutions are specifically adapted to meet your needs.
External thread precision plastic screw part
It can be demolded with 4 mechanical slides in tool design construction.
Screw external thread tool design (Cut thread and Full thread)
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