Forming equipment of extruding strip of plastic-steel winding tube

Abstract

The invention relates to extrusion forming, and in particular relates to forming equipment of an extruding strip of a plastic-steel winding tube in the extrusion forming. The invention provides the forming equipment of the extruding strip of the plastic-steel winding tube, comprising a front water tank and a rear water tank, wherein the front water tank is provided with a vacuum forming mold; therear water tank is suspended with a spraying device; and the vacuum forming mold is connected with a vacuum pumping device. The equipment in the invention has the advantages of improving the cooling efficiency of the strip, and avoiding the deformation and irregular surfaces of the drawn strip.

Description

technical field [0001] The invention relates to extrusion molding, in particular to a shaping device for extruding strips of plastic-steel winding pipes in extrusion molding. Background technique [0002] Plastic-steel winding pipe, also known as polyethylene-plastic-steel winding pipe or spiral winding pipe, is made of steel-plastic composite special-shaped strips that are spirally wound and welded. Since the spiral wound pipe perfectly combines all the advantages of ordinary non-pressure plastic pipes and the high strength of reinforced steel ribs, it can fully meet the needs of engineering applications and can be widely used in various corrosive or non-corrosive Gravity gravity conveying of media. In the production process of plastic-steel winding pipe, the strip needs to be cooled. The existing strip cooling is first vacuum-shaped by the shaping table, and then water-cooled in the water tank. However, due to the limited length of the cooling water tank, The water parti...

AI Technical Summary

Problems solved by technology

In the production process of plastic-steel winding pipe, the strip needs to be cooled. The existing strip cooling is first vacuum-shaped by the shaping table, and then water-cooled in the water tank. However, due to the limited length of the cooling water tank, The water particle in the water tank belongs to laminar flow movement, and the water will form a layer of liquid film around the strip, which is not conducive to the heat conduction of the strip. In addition, the water in the water tank is recycled, and the water temperature is easy to maintain at a high level during the continuous production process. , is not conducive to the cooling of the strip, resulting in low cooling efficiency of the strip, and the cooling effect of the strip will affect the production speed of the production line. Once the production speed of the strip increases, the cooling effect of the calibrating table cannot keep up. The strip will produce deformation, uneven surface and other defects.

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