Galvanising and epoxy-coating production line

Abstract

A galvanising epoxy-coating production line includes a sandblasting machine an assisting plating machine, a first air knife, a first pre-heater, a hot dip tank, a second air knife, a second pre-heater, an epoxy spray chamber, and a cooling chamber, arranged sequentially in order of workflow. The assisting plating machine, the first air knife, the first pre-heater, the hot dip tank, the second air knife, the second pre-heater, and the epoxy spray chamber are provided with moving channels through which workpieces can pass. Between the devices is provided with a rolling conveyer on which the workpieces run. The production efficiency is high. The electroplated rebars are long.

What is claimed is: 
     
         1 . A galvanising and epoxy-coating production line, comprising a sandblasting machine, an assisting plating machine, a first air knife, a first pre-heater, a hot dip tank, a second air knife, a second pre-heater, an epoxy spray chamber, and a cooling chamber which are arranged sequentially according to a workflow; the assisting plating machine, the first air knife, the first pre-heater, the hot dip tank, the second air knife, the second pre-heater, the epoxy spray chamber, and the cooling chamber being each provided with a moving channel through which workpieces pass; between the devices being provided with a rolling conveyer on which the workpieces run. 
     
     
         2 . The galvanising and epoxy-coating production line as claimed in  claim 1 , wherein the assisting plating machine includes upper and lower rows of assisting plating heads, and between the upper and lower rows of assisting plating heads is the moving channel for the workpieces to pass through the assisting plating machine 
     
     
         3 . The galvanising and epoxy-coating production line as claimed in  claim 1 , wherein the first air knife and the second air knife have an identical structure, the first air knife comprises a triangular frame, an air wall of the triangular frame is provided with a plurality of air nozzles, a middle portion of the triangular frame is defined as the moving channel for the workpieces to pass through the first air knife. 
     
     
         4 . The galvanising and epoxy-coating production line as claimed in  claim 1 , wherein the first pre-heater and the second pre-heater have an identical structure, the first pre-heater comprises a support, a guide pipe, and a heating wire, the guide pipe is installed on the support, the support is fixed on the ground, the heating wire is wound on the guide pipe, the guide pipe is provided with a plurality of guide holes, and the guide holes are the moving channel for the workpieces to pass through the first pre-heater. 
     
     
         5 . The galvanising and epoxy-coating production line as claimed in  claim 1 , wherein the hot dip tank comprises a big tank, a small tank, and an electroplating solution circulatory system, the small tank is placed in the big tank, an upper portion of the small tank is beyond a top of the big tank, two opposing walls of the small tank, beyond the big tank, are formed with through holes respectively, the through holes of the two opposing walls of the small tank are disposed at an axis, the through holes of the two opposing walls of the small tank are the moving channel for the workpieces to pass through the hot dip tank. 
     
     
         6 . The galvanising and epoxy-coating production line as claimed in  claim 1 , wherein the epoxy spray chamber includes upper and lower rows of epoxy spray heads, between the upper and lower rows of epoxy spray heads is the moving channel for the workpieces to pass through the epoxy spray chamber. 
     
     
         7 . The galvanising and epoxy-coating production line as claimed in  claim 1 , wherein between the sandblasting machine and the assisting plating machine, between the first air knife and the first pre-heater, between the first pre-heater and the hot dip tank, between the second pre-heater and the epoxy spray chamber, and between the epoxy spray chamber and the cooling chamber is provided with the rolling conveyer on which the workpieces run.