Abstract: A spraying apparatus for forming low-melting-point metal mold. The spraying apparatus includes a frame body having a platform. A close space having an operation area is defined above the platform. An adjustment seat having an operation table is arranged on one side of the platform corresponding to the operation area. The adjustment seat is multidirectionally displaceable and 360-degree rotatable and adjustable in angle. A spraying system is mounted on the other side of the platform. The spraying system includes a material-supplying container, a high-pressure pump and a spraying gun. A temperature-controlling box is disposed on a lower side of the frame body. The temperature-controlling box has a power switch, a first-stage temperature control, a second-stage temperature control and a third-stage temperature control which are respectively electrically connected to the material-supplying container, the high-pressure pump and the spraying gun for heating the same to a set temperature.

Abstract: A control valve assembly for spray guns comprises a flexible valve having a water-sealing portion defined by a support surface and an abutment surface conjoined to a pivoting rod via a water-stop surface disposed there-between. A water-pressure adjusting valve includes a pressure-relief section having a flow orifice to mount to a valve shaft of a pressure valve and match to the pivoting rod and the abutment surface of the flexible valve thereby. The pressure-relief section, precisely situated between a stop seat of a spray gun body and a valve seat, has a watertight ring fixed at one side to closely abut against the stop seat. A support section, extending at the other side of the water-pressure adjusting valve, has a pivoting hole defining the end portion opposite to the flow orifice thereof. Besides, the pressure valve has a positioning ring mounted to the predetermined position of the valve shaft thereon.

Abstract: A water spray gun includes a body mounted with a socket and a stopper cap and a water outlet fitting to support a water control valve, a nozzle head affixed to the water outlet passage of the body, a lever for operation by the user to rotate the water control valve and to further control the flowrate of water entering the nozzle head, a buffer member mounted in the nozzle head to buffer water pressure, a spray cap capped on the nozzle head, and a spray pattern dial mounted in the nozzle head behind the spray cap and having an adjustment plate pivotally supported between a first spray pattern plate and a second spray pattern plate with a finger rod extending out of a sliding groove of the buffer member and a sliding slot of the nozzle head for operation by the user to change the spray pattern.

Abstract: A spraying apparatus for forming low-melting-point metal mold. The spraying apparatus includes a frame body having a platform. A close space having an operation area is defined above the platform. An adjustment seat having an operation table is arranged on one side of the platform corresponding to the operation area. The adjustment seat is multidirectionally displaceable and 360-degree rotatable and adjustable in angle. A spraying system is mounted on the other side of the platform. The spraying system includes a material-supplying container, a high-pressure pump and a spraying gun. A temperature-controlling box is disposed on a lower side of the frame body. The temperature-controlling box has a power switch, a first-stage temperature control, a second-stage temperature control and a third-stage temperature control which are respectively electrically connected to the material-supplying container, the high-pressure pump and the spraying gun for heating the same to a set temperature.