Silicone Precision Injection Molding Bubble Burrs? Sumitomo Injection Molding Machine's 5 Major Technologies Easily Break the Deadlock!
Silicone injection molding is a high-precision, high-efficiency forming method. Due to its excellent heat resistance, cold resistance, compressibility, and skin-like texture, it is widely used in fields such as automotive, maternal and infant products, medical care, and electronics.
Type C
LSR Injection Molding Specific Topics
1.Short shots, shrinkage, poor appearance, flash, and demolding issues caused by filling differences.
2.Due to differences in the surface pressure on the template PL (split type) surface, uneven material viscosity, and changes in viscosity over time, short shots, flash, and mold cavity balance deterioration occur.
3.Exhaust obstruction causing short material and scorching.
4.Mold deformation leads to a shorter mold lifespan.
Our all-electric injection molding machines offer highly precise technical solutions for the stable production of LSR products.
Sumitomo's solution technology
1.Eliminate filling variations through the SK3 set and high-precision injection molding control to achieve precise and stable injection molding.
2.By using a high-precision locking mechanism to achieve uniform pressure on the mold PL surface, the balance of the mold cavity is improved.
3.Using resin viscosity measurement functions to mitigate issues of material viscosity inconsistency and viscosity changes over time.
4.Control Circuit/Piping for Special Vacuum Pump + High-Precision Mold Pause Function
5.High-rigidity clamping unit + minimum clamping force detection function
Detailed Solution
1.Point 1: SK 3-piece set + high-precision injection molding control
Due to the low viscosity of LSR, the sealing of the three-piece screw set is crucial. The SK three-piece set can reverse-rotate the screw to close the resin flow path, suppress filling backflow, and ensure stable filling volume.
Additionally, high-precision injection molding control can be achieved through the standard direct drive system, enabling rapid and complete sealing functionality. As a result, even small-volume injection molding can attain precise and stable molding performance.
2.Point2：High-precision mode-locking mechanism
(Central Compression Template)
A standard clamping center template that enables uniform pressure distribution across the entire PL surface of the mold.
Reduce the difference in surface pressure in the central part of the mold and improve cavity balance.
3.Point 3: Resin Viscosity Measurement Function
Sumitomo injection molding machines are equipped with a standard resin viscosity measurement function.
Resin viscosity measurement can be performed at any screw speed level.
Reduce production stability variations caused by differences between resin batches.
Please provide the content of "Point1" so I can accurately translate the detailed introduction of “SK3+” into English.
1.Improving injection molding precision and stability
Compared to the direct-acting check ring used in conventional LSR injection molding machines, the stability of metering and filling with the SK three-piece set has been significantly improved.
[Comparison of Precision Stable Walking]
2.Reduction of waste resin
Improving yield rate through stable measurement reduces defective products = less discarded resin, significantly lowering production costs.
[Reduce waste resin costs]
※The resin values in the chart are actual measured values under the following conditions.
Injection Molded Product: Medical O-ring
Size: Outer diameter 44mm / Wire diameter 3mm
Modulus: 16
Product weight: 1.17g
Injection molding weight: 21.2g
Product Composition
Based on the all-electric injection molding machine SE-EV-S series and equipped with a wide range of LSR-specific screws, the "LSR Injection Molding Package" is configured to meet the requirements of LSR injection molding. In addition, customized "optional specifications" are provided according to mold designs.
Build an optimization system that meets the requirements.
Detailed information about LSR injection molding kits and model selection can be provided upon request.
The injection quality is the standard value.
Other corresponding models
Corresponding to two-color injection molding and vertical injection molding.
Can correspond to LSR and heterogeneous material overmolding, vertical injection molding.
Expand the possibilities of LSR injection molding to assist in the development and production of new products.
Sumitomo injection molding machines integrate the latest technologies, offering a wide range of functions and model configurations to meet diverse product requirements, helping customers optimize production.
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