Novel cast film machine capable of forming embossed patterns on two faces of cast film

Abstract

The invention provides a novel cast film machine capable of forming embossed patterns on two faces of a cast film. The novel cast film machine comprises a primary plasticizing device, a die head, a forming device, a cooling device, a swinging device, an edge cutting device, a corona device, a winding device and a control device. The novel cast film machine is characterized by further comprising asecondary plasticizing device, the secondary plasticizing device comprises a rubber roller (3), a rubber roller (4), a cooling roller (2), a cooling roller (3) and a heating roller, the rubber roller(3) is located above the cooling roller (3), the rubber roller (4) and the cooling roller (2) are oppositely pressed, the rubber roller (4) is located above the cooling roller (2), and the heating roller is located between the cooling roller (2) and the cooling roller (3). According to the novel cast film machine capable of forming the embossed patterns on the two faces of the cast film, the embossed patterns can be formed on the two faces of the cast film, the formed cast film is not prone to deformation in the later period, the stiffness, hardness, flatness and false thickness of the cast film are increased, and the cost can be reduced.

Description

technical field [0001] The invention relates to the field of cast film, in particular to a novel cast film machine capable of forming embossing on both sides of the cast film. Background technique [0002] Cast film is a kind of non-stretched and non-oriented flat film produced by melt casting and quenching. There are two ways of single-layer casting and multi-layer co-extrusion casting. Compared with blown film, its It is characterized by fast production speed, high output, and excellent film transparency, gloss, and thickness uniformity. [0003] The existing cast film machines have the following problems: insufficient cooling, resulting in internal stress accumulation inside the cast film, resulting in low output; embossing on both sides cannot be formed at the same time; there is no second plasticizing device, and the stiffness of the cast film is not enough; currently The embossing on the casting film is all realized by forming iron rollers, and the cost is too high. I...

AI Technical Summary

Problems solved by technology

[0003] The existing cast film machines have the following problems: insufficient cooling, resulting in internal stress accumulation inside the cast film, resulting in low output; embossing on both sides cannot be formed at the same time; there is no second plasticizing device, and the stiffness of the cast film is not enough; currently The embossing on the casting film is all realized by forming iron rollers, and the cost is too high. In order to solve the above problems, this application provides a new type of casting film machine that can form embossing on both sides of the casting film.

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