A flying shear machine performs transverse shearing on a moving rolling stock. It is processing equipment capable of quickly cutting iron plates, steel pipes, and paper rolls. Its performance will directly affect the production efficiency of the rolling production line. It is mainly used to cut medium and small slabs, thin slabs, small sections, hot-rolled and cold-rolled strip. The flying shear is generally composed of a shearing mechanism, a mechanism for adjusting the cutting length, a mechanism for adjusting the clearance between the cutting edge and a transmission mechanism. The flying shear can cut the rolled product to a specified length and can cut multiple fixed lengths on the same flying shear, which can meet the requirements of the rolling mill or unit productivity. The speed of the flying shear must be adapted to the speed of the rolling stock to ensure the quality and prevent equipment accidents.
Cold Shear
Cold shear plays an important role in the rolling mills. The machine has high strength capacity to cut the product into desired lengths. It adopts a ball screw, linear guide and servo motor to drive the back gauge with high positioning accuracy with integrated steel welded structure, eliminate stress by vibration, with good rigidity. The serials’ connection of the oil cylinder is to prevent the cutting angle changing during the operation of the fly shearing machine. It has the automatic adjustment of blade clearance for accurate, rapid and convenient operation. The adjustable shear angle is to reduce sheet distortion. Motorized back gauge and position display make it convenient and precise.
Feature of Cold Shear：
1. The housing is a closed frame structure, which adopts mechanical transmission. After starting the machine tool, the motor drives the flywheel to rotate on the high-speed gear shaft. When cutting starts, the footswitch is first operated by pressing the material, and then the footswitch of the machine tool is operated to suction compressed air into the solenoid. The solenoid sends compressed air to the cylinder to push the piston, which causes the friction clutch to mesh with the flywheel, then drives the starting gear to rotate, and then transfers from the starting gear to the intermediate gear. A small gear is transmitted to the large gear on the crankshaft. The crankshaft is connected to the slider through a connecting rod, and the slider moves up and down. During a single movement, the slider moves up and down one round to complete a shear. A pneumatic friction clutch brake is used to make the machine operation stable, flexible and reliable.
2. The mechanical transmission gears are all arc gears, which have a much longer life than common involute gears.
3. Lubrication is a concentrated lubrication of thin oil. The thin oil station is driven by the pull rod on the crankshaft so that the lubricant is continuously sent to each guide surface and sliding point.
Hydraulic Alligator Shear
The hydraulic alligator shear is a type of alligator shear with extremely high-cost performance. The machine has the characters of lightweight and high efficiency compared with other scrap steel iron shearing equipment. Therefore, it has been widely used in mechanical processing and small rolling mills including metal recycling processing plant, scrap car dismantling field, smelting and casting industry, waste materials recycling and processing industry, small and medium-sized steel mills for various cross-section shapes such as round steel, square steel, sectional steel, angle steel, I-beam, Cold shearing and cutting of scrap metal.
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