EVA is a ethylene vinyl acetate copolymer. Because of its advantages of light weight, odor free, heavy metal free, heat-resistant and cold resistant, EVA is widely used in automobile interior trim. In order to increase the sound absorption and sound insulation of the product, a layer of sponge material is usually injected into the inner surface of the carved EVA board by the foaming machine, and then the foam material is pressed on the EVA board by the mold closing to transmit The processing and molding production line of the unified technology is mostly linear, which positions the mold on the workbench, the workbench is on the linear guide rail and can move relative to the linear guide rail, the foaming machine is fixed on one side of the workbench, the workbench moves to move the mold to the edge of the foaming machine in turn, and the gun head of the foaming machine sprays the sponge on the EVA processing plate in the mold, although the processing can be realized to a certain extent Operation, however, takes up a large space and moves a long distance on the linear guide rail, which will affect the processing efficiency. Although it can shorten the length of the production line to a certain extent, it mainly depends on manual operation to take the production line out of the foam mold, and at the same time, it needs to put the processed EVA plate into the foam mold, which will increase to a certain extent In addition, the working intensity of the workers is increased, and the temperature of the heated EVA plate is higher, which is also easy to cause danger to the workersPracticality is limited.