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Specifications
Brand-name PartsCountry of Origin
Experienced Staff
The function of the snap shear
The snap shear is fixed behind the track switch, and is used to chop the rolled piece cut off by the flying shear before falling into the offcut collector when some failure occurred to the rolling mill. Main technical features:
Steel model be processed |
Carbon steel, low alloy steel |
Wire diameter be processed |
17—24 |
Rolling speed |
8-11m/s |
Cutting temperature |
800℃ |
Length of snap |
~260mm |
Rotary diameter of blade |
250mm |
Motor power |
110KW |
Motor speed |
1000-2000r/min |
Belt transfer |
Centre distance:443.5mm Transfer ratio I=1 Pitch diameterφ164mm |
Gear transfer |
Centre distance:250mm Transfer ratio I=1 Pitch diameterφ250mm |
Equipment composition and structural characteristics.
Snap shear is composed by motor, shear machine housing, base, pinch roll and tool rest, shear machine housing is composed by lower base, middle box and upper box. It has a pair of mesh gears inside. The transmission roll is the lower cutter shaft, one cutter shaft is driven by the move of the mesh gears, the pinch roll is driven by the pulley fixed to the ends of the cutter shafts.
Shear machine rack is composed by lower base, middle box and upper box. One pair of mesh gear with transmission ratio at 1:1 is fixed inside the rack.
Motor and cutting support base are fixed on a base rack welded with steel plate.
Snap shear has a pair of tool rests (upper and lower tool rests) installed on the spindle; they are fixed on the transmission spindle by the wedge plate.
There are three cutting blades on the upper and lower spindle respectively. The angle of them is 120, when the spindle spinned 120, a pair of blades meshed, when the spindle finishes one circle, flying shear complete three cuttings.
Lubrication and air compression
1, lubrication
The gear and bearing inside the snap shear adopt thin oil circulate. The other parts adapt manual operation and glycerol lubrication.
2. Air compression
The startup and turnoff of the front pinch roll in the snap shear are carried out by the same cylinder, the compressed air is supplied by workshop, the pressure of the compressed air is 0.4~0.6Mpa.
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