METHOD FOR MANUFACTURING NON-PAINTED VEHICLE SWITCH BUTTON USING THREE-COLOR INJECTION

摘要

The present invention relates to a method for manufacturing a non-painted vehicle switch button using three-color injection, to manufacture a switch button which is one component of electronic units for a vehicle. The method of the present invention comprises the following steps: placing a lower mold of an injection base in a first injection stand, driving the first injection stand to the front to combine the lower mold with a first upper mold of the first injection stand, and injecting a first injection resin to mold a first injected product; driving the first injection stand to the back, and driving the injection base to be rotatable in a state of fixing the first injected product on the lower mold to place the lower mold to a second injection stand; driving the second injection stand to the front to combine the lower mold with a second upper mold of the second injection stand, and injecting a second injection resin to mold a second injected product; and driving a third injection stand on the second injection stand to inject a third injection resin through the second upper mold so as to mold a third injected product. Therefore, a painting process and a laser marking process can be omitted by applying an injection method using a three-color plastic resin, and also, a surface defect due to laser marking can be improved, thereby significantly improving the productivity of a vehicle switch button compared to that of the prior art.;COPYRIGHT KIPO 2019