Heat preservation type heating device and aluminum-plastic composite profile production line

The utility model discloses a heat preservation type heating device and an aluminum-plastic composite profile production line. The heat preservation type heating device comprises a heating cavity anda hot air gun, the two ends of the heating cavity are provided with a feeding port and a discharging port for a to-be-heated piece to enter and exit, and the hot air gun is arranged on the side, closeto the feeding port, of the heating cavity and provides hot air for the interior of the heating cavity. The device can quickly heat the aluminum profile, and the temperature range is stable. 一种保温式加热装置及铝塑覆合型材生产线，该保温式加热装置包括加热腔体及热风枪，在所述加热腔体两端开设有供待加热件进出的进料口及出料口，所述热风枪设置于所述加热腔靠近所述进料口的一侧，并为所述加热腔体内提供热风。该装置能够较快地对铝型材进行加热，且温度范围稳定。