Spinning device for polyester yarn production

The utility model belongs to the technical field of polyester yarn production equipment, and discloses a spinning device for polyester yarn production, which comprises a spray head, a spinning valve is fixedly mounted at the front part of the spray head, an operation main body is fixedly connected to the upper part of the spinning valve, and an amplitude display main body is arranged between the spray head and the spinning valve. The amplitude display main body is fixedly connected with the spray head and the spinneret valve, the operation main body comprises a first guide seat, a threaded column and a nut, the threaded column slidably penetrates through the first guide seat, the nut is installed outside the threaded column in a threaded mode, the nut is movably embedded in the first guide seat, and anti-skid lines are evenly arranged at the outer end of the nut. The spinneret valve comprises a second guide seat, a sliding rod and a valve plate. The amplitude of the spinneret valve is controlled by adjusting