The structure of this type of mould is relatively complex, making it difficult to remove some plastic parts such as caps and closures with detailed threads using standard knock-off methods. After the parts are moulded, they need to be carefully unscrewed from the mould to avoid damaging the threads. With over 15 years of experience in unscrewing moulding, we specialize in Inside Unscrewing Mould, Outside unscrewing mould, and unscrewing mould inside and outside. Therefore, we can design excellent unscrewing moulds to produce various unscrewing products. According to the types of different unscrewing products, we will choose two different demoulding methods: the first one is to use the elastic deformation of the material to forcibly eject the plastic part from the core through the unloading plate when the material allows, which is called Forced demoulding method. The other type is for plastic parts with deeper unscrewing, higher material strength, and higher thread accuracy requirements. We will use the rotational demoulding method. unscrewing injection mold design,auto unscrewing mould,unscrewing injection mould,injection mold unscrewing,Unscrewing Moulds Dongguan Hongke Plastic Precision Mould Co.,Limited , https://www.hongkemold.com
Mori Seiki Co., Ltd. introduced the "NT4250 DCG/1500SZ" at the 2006 International Manufacturing Technology Show (IMTS2006), held in Chicago, USA from September 6th to 13th. This multi-tasking machine is designed to minimize workpiece chatter caused by high-speed rotation. Based on a machining center (MC) prototype, it features a horizontal boring function that allows for precise and stable rotation of the workpiece. To further enhance stability, an automatic balancing mechanism is integrated into both the left and right spindles of the boring unit, enabling effective control over workpiece flutter.
Typically, cylindrical or conical workpieces do not cause vibration due to their balanced structure, even at high speeds. However, when dealing with complex, eccentric components on a multi-axis machine, chattering can occur, leading to reduced precision and lower productivity. Mori Seiki addressed this challenge by introducing the "Adaptive Balancer," an innovative automatic balancing system designed to dynamically counteract workpiece imbalance.
The Adaptive Balancer consists of a rotating rotor equipped with two weighted rings that can shift their phase. These rings contain movable counterweights that adjust in real time based on the detected eccentricity of the workpiece. An accelerometer monitors vibrations, and a stepper motor controls the phase shift of the weighted rings to counteract the imbalance. The rotor also includes embedded permanent magnets, and when vibration is detected, the stepper generates a current that interacts with the magnetic field, allowing for precise phase adjustments.
Unlike traditional methods that require manual balancing with added weights—often a time-consuming process—the Adaptive Balancer automates the entire operation. It responds instantly, reducing chatter within seconds without the need to slow down the spindle speed. This ensures that machining efficiency remains high while maintaining precision.
Currently, the system is offered as an optional feature, with an estimated cost of around $20,000, pending final discussions. This technology represents a significant advancement in high-speed machining, offering manufacturers a reliable solution to improve productivity and accuracy when working with challenging workpiece geometries.