Hot air adjusting device for internal plenum chamber of transverse stretcher

The utility model discloses a hot air adjusting device for a static pressure box in a transverse stretcher, which comprises a workshop and the transverse stretcher arranged in the workshop, and the transverse stretcher comprises a case and the static pressure box arranged in the case. An inlet for a film to be stretched to enter and an outlet for a stretched film to be output are formed in the two ends of the machine box respectively, the first air pressure sensing head is arranged in the machine box, the second air pressure sensing head is arranged in the workshop, and the frequency conversion adjusting fan is used for communicating the external environment and the workshop. The first air pressure sensing head, the second air pressure sensing head and the variable-frequency adjusting fan are all electrically connected with the controller, so that the air pressure in the workshop and the air pressure in the case of the transverse stretcher are relatively stable, and the temperature in the case is kept stable,