Gas meter diaphragm production device

The utility model discloses a gas meter diaphragm production device. The gas meter diaphragm production device comprises an upper die and a lower die. The upper die comprises an upper die plate, an upper die pressing plate, an upper die movable core, a third spring and a second check block. The third bolt penetrates through the upper mold pressing plate, the lower portion of the third bolt is in threaded connection with the upper mold plate, the upper portion of the third bolt is smooth, the third bolt is in sliding clamping connection with the upper mold pressing plate, the upper mold plate is square, a round hole is formed in the center of the upper mold plate, and the upper mold movable core is in sliding fit with the interior of the round hole and is round; a gap exists between the upper die plate and the upper die pressing plate, the upper die pressing plate is supported by the second spring to move up and down, the lower portion of the second positioning pin is arranged in the upper die plate, the upper