Current status of commercial products
Motor-controlled valve gates are commercially available, but the valve pin diameter is ø3.
The valve pin diameter is ø3, making it suitable for small size moldings. It is recommended to be used with a thrust of 100 kgf or less, so it cannot be used for large molded products.
It cannot be used for large molded products.
Then, can't we use commercially available electric cylinders?
The electric cylinders that are generally available on the market are not designed for integration into molds and are long and expensive, making their use impractical.
Therefore, we set the following development goals
(1) To keep the overall length the same as that of a conventional valve gate.
(2) Thrust force of 300kgf, and operation test of 300,000 times or more.
We began work on a prototype motor valve gate with the following goals in mind.
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