34results about How to "Change cooling rate" patented technology

The utility model relates to the technical field of film width adjusting and guiding devices of film blowing machines, and discloses a film width adjusting and guiding device of a film blowing machine, which comprises two groups of air rings and a support frame, the bottoms of the air rings are fixedly connected with four groups of fixing plates in an annular array, and the bottoms of the fixing plates are fixedly connected with two groups of limiting columns. A fixed sleeve box is inserted into the bottom of the limiting column, a limiting assembly is fixedly connected to the interior of the fixed sleeve box, two adjusting assemblies are rotatably connected to the interior of the supporting frame, the limiting assembly comprises two supporting springs fixedly connected to the interior of the fixed sleeve box, and one end of each supporting spring is fixedly connected with a sliding plate. According to the film width adjusting and guiding device of the film blowing machine, through the arrangement of the adjusting assembly, the effect of adjusting the height of an air ring is achieved, the corresponding relation between the air ring and a film bubble can be rapidly matched, the cooling rate can be changed, production parameter changes can be adjusted in time, and the equipment application range is widened for thin films needing to be produced and made of different thicknesses or materials.