Casting piece forming cooling device for thin film production

Abstract

The invention relates to the technical field of strategic novel industries, and discloses a casting piece forming cooling device for film production. The device comprises a fixed roller, a water inlet pipeline, a water outlet pipeline, a central roller and a motor, the outer side of the central roller is movably sleeved with a chilling roller, one end of the chilling roller is fixedly connected with a driven gear, the output end of the motor is fixedly connected with an output gear, and evenly-distributed movable rings are movably connected to the center roller in a clamped mode. Through the designed movable ring and fan blades, cooling water drives the fan blades to rotate in the flowing process, so that the fan blades drive the cooling water to form turbulent flow, part of heat absorbed by the cooling water is converted into mechanical energy, and meanwhile, a water flow layer which deviates from the chilling roller and is relatively low in temperature is mixed with a water flow layer which is close to the chilling roller and is relatively high in temperature, and the temperature of the heated cooling water is reduced, so that the cooling effect difference of the cooling water at the two ends of the thick piece is reduced, and the crystallinity and the crystal grain thickness generation difference are reduced.

Description

technical field [0001] The invention relates to the technical field of strategic new industries, in particular to a casting cooling device for film production. Background technique [0002] Cast sheet molding refers to that in the production process of plastic film, the molten polymer material is forced to pass through a narrow and long die under pressure to form a viscous cast body, and under the strong blowing of an air knife, It is quickly attached to the chilled roll, and the circulating cooling water in the chilled roll is used for forced cooling and vitrification to form a thick sheet with uniform thickness. [0003] Most of the existing slab forming cooling devices use a single chill roll to cool one side of the slab, that is, the slab is fully cooled on one side of the chill roll, which will keep the slab away from the chill roll. Insufficient cooling on one side causes a large difference in the crystallinity and grain thickness of the two sides of the slab. The thi...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the use of the existing slab forming cooling device proposed in the background technology, the present invention provides a slab forming cooling device for film production, which has cooling water to drive the fan blades to rotate, the fan blades to stir the cooling water, The cooling wind compensates the cooling effect of the cooling water, the floating ball heats up and floats under the turbulent flow, the floating ball makes the inner diameter of the nozzle change, and the advantages of forming a pressure difference zone near the adjacent nozzles solve the problem of single-sided The cooling makes the thick slices cool unevenly, the cooling water heats up makes the thick slices cool unevenly, and the air cooling heats up makes the thick slices cool unevenly.

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