Introduction to the Rotational Drive Technology of Screw Ejection Molds Using AC Servo Motors【Molds】
We will introduce an example of using an AC servo motor to drive the core mold that forms the internal screw section of the fixed side mold and the movable side mold. #MoldingMold
The unscrewing machine consists of a fixed side mold that forms the outer shape of the cap, a core mold that forms the inner screw part on the movable side, and an AC servo motor that drives the rotation of this core. The rotation drive of the unscrewing mold is powered by the AC servo motor. "To create a cap through resin molding, a core mold with engraved screws is used. However, since the cap's screws are 'internal screws' with ridges on the inside, the core mold cannot be pulled out directly after resin filling. It is necessary to open the mold while rotating the core mold. A mold that requires such rotational operation during the opening process is called an unscrewing mold."
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basic information
The screw removal machine consists of a fixed side mold that forms the outer shape of the cap, a core mold that forms the internal screw part on the movable side, and an AC servo motor that drives the rotation of this core. (Omitted) The AC servo motor is installed in the unit that attaches the movable side mold and drives the core mold via a sprocket and chain. The gear-type mechanism integrates a rotation drive mechanism into the mold, allowing the gear to rotate as the mold opens, thus driving the core's rotation. While this ensures reliable operation due to the uniform action of the gears, it also requires a separate rotation drive mechanism for each individual mold, making the mold itself more complex and increasing costs. On the other hand, systems that use motors benefit from the separation of the screw removal mold and the rotation drive unit. The rotation drive unit is installed as part of the molding machine's mechanism and function, resulting in a simpler configuration for the mold compared to gear-type systems. In environments where multiple molds of different types are exchanged to produce a variety of caps, we believe this system offers high flexibility.
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Coreless motors are engaged in the development, manufacturing, and sales of precision small motors, generators, and drivers, offering a wide range of products specialized in lightweight and energy-saving technologies through proprietary technology. 【Product Lineup】 - Coreless Brushless DC Motors - Cored Brushless DC Motors (ODM) - Small Geared Motors (ODM) - General-purpose Geared Motors (some ODM) - Gear-integrated Motors (Winner of the 36th Kanagawa Prefectural Industrial Technology Development Award) - In-wheel Motors for Electric Wheelchairs - Wheel Servo Motors (ODM) - Brushless Motor Drivers (some OEM) - Battery-powered AC Servo Motors (some ODM) - AC Servo Motion Controllers (ODM) - Renewable Energy Generators (some ODM) - Wind Turbines with EAT - IC Fan Motors - Conventional Axial Flow Fan Motors (ODM) - DC Blower Fan Motors (ODM) - Linear Motors