▎ 摘　　要

NOVELTY - The utility model claims a vacuum heat sealing device for producing graphene electric heating film, comprising a working table, a supporting frame and a negative pressure machine and a negative pressure machine supporting frame; the upper end of the working table is fixed with a placing plate; the front end of the placing plate is fixed with a lower heat sealing plate; the upper end of the lower heat sealing plate is placed with a graphene electric heating film; the upper end of the working table is fixed with a supporting plate and a second cylinder fixing plate; the supporting plate is fixed with a cylinder one fixing plate; the cylinder one fixing plate is fixed with a cylinder one; the output end of the cylinder one is fixed with an upper heat sealing plate; the front end of the graphene electric heating film is provided with an air pumping pipe; the cylinder two fixing plate is fixed with a cylinder two; the output end of the cylinder two is fixed with a negative pressure joint fixing plate; the negative pressure joint fixing plate is fixed with a negative pressure joint; the negative pressure joint is connected with the negative pressure connecting pipe through the negative pressure connecting pipe. The beneficial effect of the utility model is that the connection and disconnection of the negative pressure joint is realized by the cylinder extension, which not only saves the labour of the worker and ensures the safety of the worker.