This utility model discloses a
spray painting device for plastic shells with anti-yellowing capabilities, relating to the field of plastic shell
spray painting technology. It includes a base plate and a
filtration and
recovery mechanism. The
filtration and
recovery mechanism is fixedly connected to the bottom of the base plate, and includes a collection tank fixedly connected to the bottom of the base plate. A
ceramic membrane fine filter layer is provided at the top of the collection tank, and a
stainless steel wire mesh coarse filter layer is provided at the top of the
ceramic membrane fine filter layer. An output
pipe is fixedly connected to the bottom of the collection tank, and a circulating
gear pump is fixedly connected to one end of the output
pipe. An adjusting spraying mechanism is fixedly connected to one side of the circulating
gear pump. The
stainless steel wire mesh coarse filter layer is horizontally placed at the paint
recovery inlet. Using a stainless steel woven mesh, it physically intercepts paint films with larger diameters. Compared with existing ordinary
spray painting equipment, it can recover excess paint, reduce impurities, improve paint utilization, reduce manufacturing costs and waste paint emissions, and improve
coating uniformity, thus managing the paint lifecycle in a coordinated manner.