One-Step Production of Triple-color Electric Toothbrush Handle

With more than 69% sales growth for three years in a row, the electric toothbrush, a favored item in the background of consumption upgrade, has maintained a strong growth momentum in the field of small household appliance for personal care. However, most electric toothbrush production still adopts overmolding and assembly processes, which require more floor space and labor but with low efficiency and poor product quality.

Traditional production modes led to fierce homogenous competition, which seriously deviates from the national initiative: transformation and upgrading, quality improvement, efficiency increase, and cost reduction. The sustainable development of enterprise cannot be guaranteed effectively.

YIZUMI NSW series piggyback multi-component injection molding machine is equipped with hydraulic and electric hybrid structure, precise positioning technology for servo rotary shaft, triple-color molding technology, process tracking technology, etc., which meets the requirements of molding precision, high efficiency, customization and improves plant utilization, providing a more cost-effective solution for multi-component molding.

At CHINAPLAS 2020, a YIZUMI piggyback multi-component injection molding machine will combine a triple-color mold and a V-type electric injection unit, to produce triple-color electric toothbrush handles composed of PC shells, TPU buttons, and transparent PMMA indicator lights in one step. Laser marking and process tracking technology are also applied.

High flexibility plays an essential role in multi-color injection. The transparent indicator lights mentioned above have light-weight and thin-wall shells, which require accurate control of injection pressure and speed. Precision injection electric injection units can avoid flash and short shots, making molding more stable. The hydraulic and electric hybrid technology allows agile switching between hydraulic injection units and electric injection units according to customer requirements. For example, adopting an electric injection unit can satisfy the demand of precision molding and optimize the investment cost.

Value Advantages:

·Precise positioning of three-location rotary shaft: the rotary shaft servo system adopts DCPC three-location positioning technology to offer quick, accurate positioning control and multi-location precision molding;

·Flexible module combination: the nozzle center distance is adjustable on the piggyback series machines, which can be equipped with a turntable or a rotary shaft module. Hydraulic or electric injection units are also optional. Agile combination would be conducive to obtaining better investment projects;

·Customized tracking mode of manufacturing information: tracking products using QR codes to meet customized requirements;

Application Example

Product: Tricolor Electric Toothbrush Handle

Number of cavities: 1+1+1

Material: PC+ABS+TPE

Part size(L×W×H):156×32×30mm

Part weight: 42g/piece

Cycle time: 55s