Introduction to the rotational drive technology of screw extraction molds using AC servo motors.
We will introduce an example of using an AC servo motor to drive the core mold that forms the internal screw section of the movable side and the fixed side mold. #MoldTechnology
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 performed 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 screw has internal threads with ridges, 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 opening is called an unscrewing mold."
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 inner 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 rotational drive mechanism into the mold, causing the gear to rotate when the mold opens, thus enabling the core's rotational drive. While the uniform operation provided by the gear ensures reliable performance, it requires a separate rotational drive mechanism for each mold, making the mold itself more complex and increasing costs. On the other hand, using a motor allows for the screw removal mold and the rotational drive part to be considered separately, which is advantageous. The rotational drive part is installed as part of the molding machine's mechanism and function, resulting in a simpler structure for the mold compared to the gear type. 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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Company overview, introduction of coreless technology, output comparison, torque comparison, case studies, product guide, lineup, dimensional drawings and specifications for each model number, characteristics and usage areas for each voltage, application guide, introduction of geared motors and gear-in motors are provided. *For more details, please refer to the catalog or feel free to contact us.*
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CAD data（16）
| Model number | overview | File |
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| MLD-075-ST |
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| MLD-075-ST |
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| MLD-030-ST.stp |
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| MLD-030-ST.stp |
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| CPH80.igs | These are the dxf and igs files for CPH80. |
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| CPH80.igs | These are the dxf and igs files for CPH80. |
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| CPH80.stp | These are the dxf and stp files for CPH80. |
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| CPH80.stp | These are the dxf and stp files for CPH80. |
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| CPH62.stp | These are the dxf and stp files for CPH62. |
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| CPH62.stp | These are the dxf and stp files for CPH62. |
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| CPH62.igs | These are the dxf and igs files for CPH62. |
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| CPH62.igs | These are the dxf and igs files for CPH62. |
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| CPH50.igs | This is the dfx file and igs file for CPH50. |
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| CPH50.igs | This is the dfx file and igs file for CPH50. |
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| CPH50.stp | These are the dxf and stp files for CPH50. |
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| CPH50.stp | These are the dxf and stp files for CPH50. |
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