Film covering device

The invention provides a film covering device, and relates to the technical field of glass cover plate production equipment. The film covering device comprises a rack and a film covering mechanism arranged on the rack. The film covering mechanism comprises a film covering roll shaft comprising a first end and a second end which are opposite to each other, with the part, located between the first end and the second end, of the film covering roll shaft being sleeved with a winding drum used for winding a film material; two supporting frames arranged at the first end and the second end of the film covering roller shaft respectively, each supporting frame being provided with an adjusting groove extending in the first direction, and the first end and the second end of the film covering roller shaft penetrating through the adjusting grooves respectively; two adjusting structures provided with adjusting ends capable of reciprocating in the first direction, movably connected with the first end and the second end of t