Liquid Silicone Injection Molding Machine Menstrual Cup Manufacturing Machine

The key points for LSR to realize precision injection molding are as follows:

(1) Full mixing of liquid silica gel

Accurate mixing ratio: LSR is a and B two-component raw materials. Before injection molding, it must be fully mixed according to the accurate 1:1. If it is a colored liquid silica gel product, the paste proportion must be accurately controlled. Mixer: static mixer is the key component in injection molding. Only when the static mixer is fully and evenly mixed can liquid silica gel be fully vulcanized into the mold.

(2) Sealing and temperature control of injection molding machine parts

Due to the low viscosity of LSR, the screw must be sealed to consider the backflow and leakage of materials; since the mold is heated during the LSR molding process, in order to prevent LSR curing, a water-cooled nozzle can be used to ensure the temperature is low enough.

(3) Finished product control in injection molding process

Parting line: pre considering the location and accuracy of parting line is helpful to avoid air entrainment and welding and avoid burr; shrinkage: Although LSR does not shrink in injection molding, it usually shrinks by 2% ~ 3% after demoulding and cooling due to its high thermal expansion coefficient; location of injection port: actual product shrinkage should be considered; Vacuumizing: when designing the parting line, make sure that the mold is airtight. The vacuum pump vacuumizes all cavities through the fixture under the mold switch; demoulding: the stripping technology of fractionation column tray, ejector pin and air pushing is generally adopted, or manual demoulding is adopted. Mold temperature: LSR is vulcanized in heating, and the temperature distribution in the mold must be controlled evenly. The temperature difference should be controlled within ± 10 ℃.

LSR injection molding machine of model TYM-L5058-2:

The vertical 130T direct pressure LSR injection molding machine

OUR SERVICES

Pre-sale service
According to the customer’s investment budget, plant planning and other forms of pre-sales services to ensure customer's planning is reasonable, standardized and cost-saving, will provide matched mold and select suitable machine according to customer’s requirement.

On-purchase service
Enable to be familiar with the operation and maintenance of the TYM's machine.
1) Installation of LSR machine and new machine debugging service.
2) Machine operator training.
3) Training of technicians.

After-sales service
1) Free training for the operation and maintenance independently.
2) Help to solve and reply technical problem and question timely, TYM will arrange professional engineer for the instruction and will provide the technical guidance for free.
3) TYM will give priority to customer when the system on the LSR machine need to be upgraded.