Aluminum pipe resin coating apparatus

Abstract

The present invention relates to an aluminum pipe resin coating apparatus which stably, solidly, and evenly coats resin on the outer surface of an aluminum pipe, an aluminum alloy pipe, and a copper (Cu) pipe (called aluminum pipe hereinafter) used for refrigerant pipes or hydraulic pipes, and other fuel lines, etc., the aluminum pipe resin coating apparatus comprising: a linearizing means (200) for linearizing an aluminum (Al) pipe supplied from an aluminum pipe supplying means (100); a washing means (300) for washing the surface of the linearized aluminum pipe and simultaneously generating fine scratches on the surface; a drying means (400) for drying the washed aluminum pipe; an adhesive applying means (500) for supplying and applying an adhesive on the dried aluminum pipe; a preheating means (600) for preheating the adhesive-applied aluminum pipe; a resin coating means (700) for coating a resin on the surface of the preheated aluminum pipe; a cooling means (800) for cooling the resin-coated aluminum pipe; and a drawing-out means (900) for drawing out the cooled aluminum pipe.

Description

technical field [0001] The present invention relates to a resin coating device for aluminum tubes, which is applied to aluminum tubes, aluminum alloy tubes, and copper (Cu) tubes (hereinafter collectively referred to as "aluminum tubes") used for refrigerant tubes, hydraulic tubes, and other fuel piping. The outer surface of the resin is stable, strong, and evenly coated with resin. Background technique [0002] Aluminum pipes coated with resin are usually used for cooling / heating pipes for refrigerant movement, fuel lines for transferring fuel, power steering (powersteering) pipes for transferring hydraulic oil, and brake lines (Brakeline), etc. . [0003] The existing manufacturing method of the existing aluminum pipe applied to the aforementioned use, that is, Korean Registered Patent No. 10-887710, includes the following steps: a supplying step of supplying the aluminum pipe; high frequency preheating of the above aluminum pipe by high frequency preheating steps; a bin...

AI Technical Summary

Problems solved by technology

[0005] In the conventional manufacturing method of the aluminum pipe constituted as described above, when supplying the aluminum pipe, the above-mentioned aluminum pipe is unwound and supplied in the state that the above-mentioned aluminum pipe is curled on the crimping drum, so the aluminum pipe is not straightened due to the elastic characteristics of aluminum. Adhesive and resin are applied in the state, but the adhesive and resin cannot be applied perfectly

[0006] Moreover, in the existing aluminum tube manufacturing method, since the aluminum tubes are crimped to the crimping roller and press each other, they cannot maintain a true round shape but an elliptical shape. When applying an adhesive and resin in this elliptical state, not only The finished product cannot maintain a true circle, and the adhesive cannot be applied evenly to the outer surface of the aluminum tube, and the resin cannot be evenly applied to the outer surface of the aluminum tube

[0007] And, because the manufacturing method of above-mentioned aluminum tube realizes binder coating and resin coating in a mold shell, therefore be coated on the surface of aluminum tube with the form that binder and resin mix, after this coating part hardens, will Cracks and cracks

[0008] Recently, the Korean registered patent No. 10-1313805, which was developed and registered by the present inventors in order to solve the above problems, and its manufacturing device are a good solution, but because before resin coating The surface cleaning of the aluminum tubes carried out is not perfect, and the coating layer will occasionally peel off after the resin coating is completed.

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