& nbsp; The uncoiler equipment mainly consists of several components such as the base, damping mechanism, main engine, expansion and contraction drum, and feeding trolley& nbsp;  & nbsp; The host adopts a dual rack structure connected by four pull rods, and is fixed to the base with flat keys or conical pins as a whole structure. The spindle can move axially within ± 40mm, which is achieved by directly replacing the inner ring of the short cylindrical roller bearing with a high-precision outer circle that has been quenched and ground. The screw pair is driven by a handwheel and limited by two thrust ball bearings, allowing the spindle to move left and right and rotate relative to the frame.  & nbsp; & nbsp; The drum adopts a detachable structure with replaceable flange connections. There are two types of commonly used drum structures:& nbsp;For the drum with a core tube diameter of 76mm, a simple double cone head clamping form with a taper of 1:3 is used, and manual screw clamping is used with a horseshoe washer to achieve fast (without disassembling screws) loading and unloading.  & nbsp; & nbsp; For the expansion and contraction drum with a diameter of 203mm, due to the large tightening range (diameter 180, - diameter 220mm) up to 40mm, and the core shaft being less than 200, a typical structure cannot be used. Therefore, a special structure has been specially designed with a double pyramid left and right screws that are subjected to force from a 140 diameter steel pipe and only tension from the screw, and are tightened manually with a wrench. The four sided pyramid with piston type guidance has oil storage holes, and the aluminum disulfide can automatically lubricate during operation. At the same time, considering the possible large deviation between the incoming coil and the core, the structure specifically considers adding expansion tiles with a diameter of 170-210mm to achieve a diameter of 180-220mm. This can be removed to make it smaller, and the expansion tiles can be processed to make it larger& nbsp;  & nbsp; & nbsp; The non powered damping force is achieved by a pair of thin film cylinders acting on the friction plate of the main shaft through a clamp friction plate. The tension changes relatively with the change of air pressure and the size of the roll. The lower part of the main machine is equipped with a pair of folding rollers parallel to the main drum, which can allow the strip steel to pass through the bottom of the machine under good alignment. Considering the installation accuracy of the entire unit, an adjustable folding roller at the outlet end of the original unwinding machine should be retained. (But suitable parts can be modified).  & nbsp; & nbsp; The feeding trolley is not only a simple hand push rail trolley, but also a multifunctional special component. The V-shaped frame is a manually operated hydraulic jack that guides and maintains stability through two guide rails with a diameter of 32. The lifting range is expected to be limited to below 120mm, and when changing varieties, a wooden pad should be used, which should be positioned with screws& nbsp;  & nbsp; & nbsp; In order to facilitate the free swinging of the hand wrench, the armrest of the car is made into a foldable and flat type. After the armrest is raised, it is designed and fixed by a pair of hook pins. When it is lowered, simply press the hook connecting rod with your hand to release it. There is a simple peeping hole above the armrest to facilitate the alignment of the steel coil, and a stopper is also installed to prevent possible rolling and tilting. The outer rail installed by the user must be level with the inner rail to prevent the car from jumping. Considering that each roll needs to work for more than 1 hour and is not frequently used, in order to avoid pneumatic slide valve leakage, reliable manual stainless steel ball valves are used instead, and gas storage cylinders are added to stabilize the pressure.Main technical parameters of the uncoiler;(1) Unit line speed of 30 m/min;(2) Opening tension; O--~60kg， Tension stability range ± 15%, friction damping of pneumatic clamp, working pressure 0-0.4Mpa;(3) Incoming material specifications;a. Aluminum strip coil (with steel pipe core), inner diameter of the tube ① 76mm, length of the tube 320 ± 10mm, outer diameter of the coil ① 650-1000mm, width of 300mm, coil weight ≤ 500kg;b. Steel strip coil (coreless), inner diameter 203, expansion range ① 180-220mm, outer diameter ① 1000mm, bandwidth 200mm, coil weight~650kg;(4) Type of drum: detachable flange connection type;a. 76mm fixed cone sleeve manual quick clamping;b. 180-220mm expansion contraction square pyramid manual clamping;(5) Roll up method: A rail hand push feeding trolley with a track gauge of 500mm, and a manual hydraulic jack to raise the V-shaped frame, with a maximum lifting amount of 120mm, and an additional wooden pad of 100mm can be added& nbsp;(6) Incoming material alignment method: manual handwheel adjustment, alignment range ± 40mm;(7) Overall dimensions of the host; 1300 X 850 X 1200 mm(h) (8) Total weight of equipment; 750kg