Multi-layer co-extrusion centrifugal casting film production line

Abstract

The invention discloses a multi-layer co-extrusion centrifugal casting film production line, and relates to the technical field of film production. In the present invention, by arranging a first trimming mechanism between the casting mechanism and the corona mechanism, the two sides of the film formed by cooling can be cut, and the corona mechanism is damaged due to the large thickness of the two sides of the newly formed film. In order to reduce the frequency of downtime of the corona mechanism for maintenance. By arranging a second edge trimming mechanism between the corona mechanism and the winding mechanism, the two sides of the film coming out of the corona mechanism are cut to produce a film with an actual required width. The edge material cut by the first edge trimming mechanism and the second edge trimming mechanism is recovered by the edge material recovery device, and the edge material is crushed and put into the inner layer unloading mechanism, so that the edge material produced by subsequent processing can be used as the inner layer of the film. Part of the raw materials of the layer, realize online recycling of edge materials, and recycle the edge materials to reduce production costs.

Description

technical field [0001] The invention relates to the technical field of film production, in particular to a multilayer co-extrusion centrifugal casting film production line. Background technique [0002] Multi-layer co-extruded film is generally divided into heat-sealing layer, support layer and corona layer. The selection of materials is wide, and materials that meet the requirements of each layer can be selected individually, giving the film different functions and uses. At present, the processes of extrusion, casting, corona and winding are often required in the production process of multi-layer co-extrusion film. However, in the actual production process, the film is unfolded from the middle to both sides during the casting process, so the side edges on both sides of the film are thick, and when passing through the corona roller in the corona mechanism, the rubber of the corona roller will be cut layer, resulting in the need for frequent replacement of the rubber layer, ...

AI Technical Summary

Problems solved by technology

However, in the actual production process, the film is unfolded from the middle to both sides during the casting process, so the side edges on both sides of the film are thick, and when passing through the corona roller in the corona mechanism, the rubber of the corona roller will be cut layer, resulting in the need for frequent replacement of the rubber layer, which is not conducive to the production operation of the production line

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