Heating device for controllable temperature

The utility model discloses a heating device for controllable temperature, the device is waited to heat the metal sheet and is placed including cast iron hot plate, heat preservation and hot plate electrode on the cast iron hot plate to fix through the clamp plate strip, the bottom and the lateral wall of cast iron hot plate are installed the heat preservation, the heat preservation sets up in the steel casing, and its whole double -screw bolt that passes through is connected with welded platform, the cast iron hot plate with still install temperature sensor between the heat preservation, temperature sensor connects the temperature data collection port of intelligent PID temperature controller, ac contactor is connected to the hot plate electrode of cast iron hot plate, ac contactor's control coil is connected intelligence PID temperature controller. The control to preheating temperature has been realized to above -mentioned device to can prevent effectively that the heat from leaking. 本实用新型公开了种可控温的加热装置，所述装置包