In 1954, Philippe-Guy Woog, a Swiss doctor, invented an electric toothbrush for patients who had difficulty moving their hands. He couldn't have imagined how easy it would be to make an electric toothbrush a few years later.
Most of the electric toothbrushes used now belong to the acoustic wave electric toothbrushes. The acoustic wave here does not mean to rely on ultrasonic to clean teeth, but the vibration frequency of the toothbrush has reached the frequency of acoustic wave.
During the operation of the electric toothbrush, the high speed motor transmits kinetic energy to the drive shaft, and the brush head produces a low frequency oscillation perpendicular to the handle.
The shell and component support of electric toothbrush are made of ABS plastic, that is, resin. The mechanical equipment needed for the shell and component support in production is injection molding machine. It is the thermoplastic or thermosetting plastic using plastic molding mold, plastic products into various shapes of the main molding equipment.
The core element of electric toothbrush is the motor and the bristles. The bristles on the electric toothbrush are mounted by a tufting machine.
The process of tufting is quite interesting. First, fold the bristles in half, and then insert them into the groove by the machine's high-speed prodding, so that the bristles and the brush head are bonded together. Next, trim the bristles as required according to the shape of the brush head. The edges of the trimmed bristles are still rough and need to be rotated and polished with a grinding machine until the top micrograph of the single bristle is rounded.
After completing a series of operations, the electric toothbrush will be tested by a waterproof tester and a series of quality inspection, then it will be used in the packaging machine and enter the link of blister and labeling.
Post time: Jun-03-2019
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