Needle installing machine with stable structure

The utility model relates to a needle mounting machine with a stable structure, which comprises a base, sliding grooves are symmetrically formed in the front and back of the upper surface of the base, sliding blocks are connected in the sliding grooves in a sliding manner, the upper surfaces of the two sliding blocks are connected with a moving seat, the moving seat is located on the upper side of the base, and a through groove is formed in the surface of the moving seat. A bidirectional screw rod is arranged in the through groove, one end of the bidirectional screw rod is connected with a motor, the motor is located outside the moving seat, threaded sleeves are in threaded connection with the surface of the bidirectional screw rod in a bilateral symmetry mode, a moving plate is arranged on the upper surfaces of the threaded sleeves, and a limiting plate is arranged on the surface of the moving plate; limiting grooves are formed in the opposite surfaces of the two limiting plates. According to the needle inst