Electric Shears, Main Category Special Shears Bevelled Edge Shears Flat Edge Shears Multi-Purpose Shears Operating Principles Operating Procedures Usage Notice Maintenance Technical Requirements Troubleshooting Correct Purchase Main Category Special Shears Multi-mating The use of other equipment, shears (Figure 1 ) to complete special purposes: 1 , cold forming line shears: for example, car longitudinal beam cold bending line, compartment side baffle production line, color steel forming line and other special shears on the production line configuration Plate machine, etc. 2. Shearing machine for steel structure production line: It is mostly used for the cutting process of angle steel and H- beam automatic production lines. 3. Shear plate cutting machine for sheet metal: It is used for leveling line of sheet decoiling, and it is used to cut the line speed. The high-speed shears designed for the requirements are mostly hydraulic high-speed shears on thick-plate lines, pneumatic shears on thin-plate lines, and flying shears on high-speed lines for continuous production with high efficiency. Oblique blade shears The upper and lower blades of a shearing machine are at an angle. Generally, the blades are inclined, and the inclination angle is generally 1° to 6° . Oblique blade shears shear force is smaller than flat blade shears, so the motor power and overall weight are greatly reduced, the actual application of more, shear plate manufacturers more production of such shears. Shanghai Yawei Machine Tool (3 sheets ) Flat blade shears have good cutting quality, small distortion, but large shear force and large energy consumption. More mechanical transmission. The shears are parallel to each other on the upper and lower blades. They are commonly used in hot-shearing blooms and slabs in rolling mills. They can be divided into upper cuts and lower cuts according to their cutting methods. Multi-purpose shearing machine 1 and joint punching shearing machine: It can complete the cutting of the plate, and can also cut the profile, and is used for the cutting process; 2. The plate bending shearing machine: that is, on the same machine Can finish cutting and bending two kinds of crafts. Working principle Shearers should be able to ensure the straightness and parallelism of the shear surface of the sheared sheet after shearing. Shearers (Fig. 2 ) and minimize the distortion of the sheet to obtain high-quality workpieces. The upper blade of the shears is fixed on the blade holder and the lower blade is fixed on the worktable. A support ball is installed on the worktable so that the sheet will not be scratched when it slides on it. The back gauge is used for sheet positioning and the position is adjusted by the motor. The hopper is used to press the plate to prevent the plate from moving during cutting. The guardrail is a safety device to prevent industrial accidents. The return trip generally depends on nitrogen, which is fast and has little impact. Operational Procedures: Seriously implement the relevant provisions of the “ Shearing Machine Operation Procedures” (Figure 3 ). Second: Conscientiously implement the following supplementary provisions: 1. Serious work done before work: 1 ) Before the empty test run, use a manual work cycle to confirm the normal operation before starting the equipment. [1] 2 ) The equipment with hydraulic devices should check the amount of oil in the storage tank. After starting the oil pump, check whether there are any leaks in the valves and pipes. The pressure should meet the requirements. Open the air release valve to let air out of the system. 2. Work seriously: 1 ) No shearing of laminated sheet material, no edge trimming of burrs, and shearing machines (Fig. 4 ) are not allowed to cut narrow sheets and short materials that are not tightly pressed. 2 ) The gap between blade plates should be adjusted according to the thickness of the plate material, but it should not be greater than 1/30 of the plate thickness . The knife plate should be fastened firmly, and the upper and lower knife plates should be kept parallel. After adjustment, apply manual test to avoid accidents. [1] 3 ) The edge of the blade should be kept sharp. If the blade becomes blunt or cracked, it should be replaced in time. 4 ) When cutting, the pressing device should firmly press the plate material, and it is not allowed to cut under the pressure not tight. 5 ) For hydraulic equipment, except for throttling, other hydraulic valves are not allowed to self-adjust. 6 ) For the thickness of the shear plate material of the hydraulic pendulum shears, it shall be determined according to the curve of the relationship between the ultimate strength of the plate and the thickness of the plate. [1] 3 , after work, the upper blade should fall on the lower position. Before operation, wear tight protective clothing, cuffs fastened, and the hem of the jacket not open. The shears (Figure 5 ) must not be worn or removed from the machine, or clothed on the machine to prevent the machine from being injured. You must wear a safety helmet. The raft should be placed in a cap. No skirt or slippers are allowed. [1] Shears operators must be familiar with the main structure, performance and use of shears. Shears are suitable for shearing all kinds of steel plates, copper plates, aluminum plates and non-metallic plates with material thicknesses, and must be free of hard marks, welding slags, slag inclusions, and welds. Ultra-thickness is not allowed. The use of shears: According to the thickness of the material to be cut, adjust the gap of the blade; According to the width of the shear material to adjust the fixture or fixture; Shearer operation before making 1-3 empty travel, can be implemented after normal Cut work. If the machine is found to be operating abnormally during use, immediately shut off the power shutdown check. When adjusting the machine tool, the power must be turned off. When moving the workpiece, pay attention to the safety of the hand. Shears should be kept under constant lubrication. Each shift should be filled with lubricant once by the operator. The mechanics should refill the rolling bearing parts once every six months. Use Note 1. Start the shearer machine for several cycles to ensure that, under normal conditions, try cutting different thickness sheets from thin to thick. Make sure the user is familiar with the performance of the shears
