Three roller Drawing Machine

The Three roller drawing machine applys to with lead and lead-free solder wire rom 5mm-0.8mm
Machine structure
The main part of the wire drawing machine was joint by steel plate steel, and driven by double chain, spray hard chrome on the roller to improve the rigidity and the roughness of the surface. Cool and lubricate the drawing part by steeping, with cover to prevent the cooling liquid splash out. Adopt 15KW motor with inverter control to ensure the stable speed.

Technical parameter
Item Unit Spec
1, Inlet wire mm 5
2, Outlet wire mm 0.8
3, Max speed m/min 220
4, Dies no. pcs 43
5, Speed fix wheel diameter mm 160
6, Power KW 15
7, Outer dimension mm(L*W*H) 2140x885x1100
8,
Machine weight T 1

Machine Operation
Input Lubricating oil and arrange drawing die before down lead, and then draw the wire through the dies according to the tightness of each dies and machine work condition. Make two circles around the roller for the strong pull, one circle for weak pull; (Generally, big diameter wire needs strong pull while small diameter wire needs weak pull. The operator can judge according to the operation.) Finally, put the wire through the wire press wheel and out-let pipeline, then ready to draw the wire.

Safety precautions
1)
Keep the lubricant temperature lower than 50°C, or it will affect the heat giving out.
2)
Electrical connections must be properly grounded
3)
Lubricant all the running parts every two weeks.
4)
If there’s badly shaking or swing of the roller, please check the fixing nut of the roller to ensure it does no damage to the machine by friction between the roller & axis.
5)
If there’s any decrease of the power or slipping, disassembly the back cover to check whether the belt is tight enough and screw the fixing nut tight to adjust the belt.
6)
If there’s exceptional noise during the running, open the cover and check whether there’s shift in the drive chain wheel and screw tight the fixing nut.
7)
Cleaning the dies every shift with diesel oil or kerosene.

Roll bearings list
Serial No.
Position
Bearing type
Qty
1
(1.2)Principal axis
NJ312E
4pcs
2
(3.4)Principal axis
6312-Z
4pcs
3
Speed fix axis
6206-Z
2pcs
4
Wire outlet axis
6206-Z
2pcs
5
Wire press wheel
6003
2pcs

Maintenance
Machine under normal running; the bearings can be change every year and change the wire press wheel according to the abrasion. Lubricate the bearings every shift, avoid the lubricant splash to the painting surface of the machine during the drawing procedure to affect machine outlook. Running the new machine for full charge after one week, or it will affect the life span of the machine.