Patent attributes
An injection molding device includes a female mold defining a cavity, a male mold having a projecting part protruding toward the female mold corresponding to the cavity, a transport configured for transporting a foil into a position between the female mold and the male mold, a vacuum-pump, and a thermal medium source. A plurality of air discharging holes is defined in the female mold joining in the cavity. A channel is defined in the projecting part of the male mold. The vacuum-pump is connected to the air discharging holes of the female for vacuuming the cavity to suck the foil toward the female mold. The thermal medium source is connected to the channel of the male mold for inputting thermal medium into the mold via the channel to press the foil to cling to the female mold.
