In the traditional single-head copper wire drawing and stranding process, each copper wire is drawn on a single-head copper wire drawing machine, and then is wound on a reel separately and then released in the next strand. For example, if you need to produce 2 copper wires at the same time, you need 2 single-head copper wire drawing machines. In contrast, if a double-head copper wire drawing machine is used, double the efficiency can be achieved. LHD-450 / 13-2 Double-head Copper Pull Machine not only improves production efficiency, but also improves product quality. The purpose of this blog is to introduce the main components of the LHD-450 / 13-2 double-head copper pull machine.
1. Pay-off stand
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Height of pay-off stand |
About5500mm(not easy to be tangled) |
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The maximum diameter of inlet coiler |
Φ2000mm(4000kg) |
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Guide wheel diameter |
Φ400mm |
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Quantity of guider |
6 pcs |
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Wire tangled alarming and stop line device |
Equipped |
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It is used to sharpen the wire end and thread it through the dies. |
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Diameter of roller |
Φ100mm |
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Rotating speed of roller |
24r/min |
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Apply range of pointing |
Φ1.5mm-Φ12mm |
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Diameter of drum |
Φ420mm |
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Motor power |
5.5KW/AC |
3. Main drawing machine
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- Gearbox is cast with HT200 cast iron accurately as a whole piece. Compared with piece together structure, it has many excellent features, for instance: higher rigidity, good sealing performance. It will also not leak water or oil and can reduce vibration efficiently. The gearbox is treated with one-off directional machining in Germany-made advanced machining center to make sure processing accuracy. - In the gear box, material of bevel gears is 20CrMnTi and it is treated with cemetite quenching. - Surface of drawing capstan is in a double-cone shape to enhance its service life greatly. - The drawing box has double covers to seal. Covers are made of stainless steel. The outer cover has six parts and inner cover has four parts and can be open and closed by hand. - The final drawing capstan is fitted with an independent DC motor with power of 110KW and is transmitted by teeth belt. |
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Inlet wire diameter |
2×Φ8mm |
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Outlet wire diameter |
Φ1.3– Φ3.5mm |
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Diameter of drawing capstan |
Φ450mm |
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Max. drawing speed |
Max23m/s |
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Speed ratio between capstans |
(26~46% die No. 13 adjustable) |
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Quantity of capstan |
13 combined type |
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Die holder size |
:Φ53x35 mm |
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Drawing capstan surface treatment |
Tungsten carbide coated |
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Quick die change |
Available |
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Main motor |
450KW /1000r/min DC /1 set |
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Final capstan motor |
110KW /1500r/min DC /1 set |
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Oil pump motor |
4kw |
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Gear between capstan and shaft |
Interchangeable (except final capstan) |
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Noises of main machine |
≤85 db (except main motor). |
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Protection cover |
Stainless steel |
4．Lubricating System and Cooling System for Main Gearbox and Drawing Oil Tank
Cooling system for drawing(provide by ITO, standard supply scope):
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Drawing oil tank size |
~30m3(prepared by the user) |
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Drawing fluid pump |
11kW |
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Plate type of heat exchanger |
BR0.2-1.6-15-N inside diameter: 65 heat exchange area: 25m2 1 set /ITO |
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Double barrel filter |
SLQ-65 precision 0.08 area 0.52m2 Pass capacity 760 l/min 1 set /ITO |
Annealing cooling system
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Tank for annealing fluid |
≥15 m3（prepare by user） |
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Cooling water pump |
11kW 1 set /ITO |
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Tubular heat exchanger |
Area of heat exchanging:25m2 1 set /ITO （External） |
5. Vertical Wire Accumulator with Tension
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Purpose |
During dual spooler start, stop, and bobbin change, it is used as compensation to the line speed by micro change. |
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Type |
Tension adjusted by pneumatic clamping |
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Air pressure |
Adjustable within 0.3~0.6Mpa |
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Accumulating length |
ITO standard: over 7 meters |
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Guide roller material |
AL + ceramic coating treatment |
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