& nbsp;& nbsp; Longitudinal cutting machine: Good cutting quality, small twisting deformation, but high cutting force and energy consumption. There are many mechanical transmissions. The upper and lower blades of the shearing machine are parallel to each other and are commonly used for hot cutting of initial rolled billets and slabs in steel mills; According to its cutting method, it can be divided into upward cutting and downward cutting.  & nbsp; & nbsp; The slitting machine is the equipment with the highest precision requirement in the slitting line. By configuring the number and spacing of disc blades on the upper and lower blade shafts, the strip material that is continuously fed after unfolding can be longitudinally sheared into several narrow strips, which are then rewound into coils by the coiler. According to the thickness of the strip, the number of longitudinal narrow strips ranges from a few to dozens, and the minimum width of the narrow strip should be greater than or equal to the thickness of the disc blade.  & nbsp; There are now several types of tension: pressure plate type, belt tension type, and roller tension type. The biggest advantage of the pressure plate type is its low cost. It is easy to damage the sheet metal during high-speed production line tension and may also cause high-temperature spontaneous combustion of the felt; It is not necessary to use belt tensioning at high speeds because the belt has high wear and tear, the cost of use is high, and only materials with no damage to the surface are willing to be used. Moreover, the manufacturing cost of belt tensioning machines is also high.  & nbsp; The longitudinal cutting machine is mainly used for tension-free cutting of strip materials, and has the characteristics of precise cutting and less edge burrs. There are feeding trolley, unwinding machine, clamping machine, guide device I, disc shearing device, guide device II, loop device, tension generating device, winding device, feeding trolley, waste edge winding device, hydraulic control device, electrical control device, etc.  & nbsp; In the market environment, whether it is financial leasing, loans, or investments, as long as funds are used to purchase equipment or carry out technological transformation, the market risk of products produced using leased equipment should be considered first. Technical risks. One of the benefits of financial leasing is to introduce advanced technology and equipment before other enterprises. Trade risk. Due to the trade nature of financial leasing, there are risks involved in trade, from order negotiations to trial and acceptance.  & nbsp; Moreover, the current macroeconomic policies of the country will also bring huge business opportunities to China's engineering machinery and equipment leasing enterprises. According to the "National Expressway Network Plan" approved by the State Council, by 2020, a highway transportation corridor will be formed that radiates outward from the central city and connects east and west, running north-south. This macroeconomic policy will effectively stimulate the market. The marketization of construction machinery configuration has become an inevitable trend, and the prospects for market development have been widely optimistic.  & nbsp; Due to the low rotational speed of the slitting machine blade shaft and the low temperature rise of the bearing during operation, the axial force it can withstand under reasonable blade arrangement is not very large. Therefore, it is only necessary to choose diagonal contact ball bearings with moderate pre tension. This diagonal contact ball bearing takes into account the axial deformation generated under preload during bearing assembly, and the bearing is in a preloaded state when the corresponding end face is compressed during assembly. Bidirectional thrust angular contact ball bearings can also be used, which can withstand bidirectional axial loads, have good rigidity, and are easy to assemble and disassemble. In addition, the accuracy of the bearings near the working part of the tool shaft mentioned above has a greater impact on the rotational accuracy of the tool shaft than the accuracy of the outer bearings. Therefore, when selecting bearing accuracy, the former should be chosen higher.  & nbsp; In order to achieve good cutting quality and accuracy, the fixed frame and movable frame of the longitudinal cutting machine should have sufficient rigidity to ensure the precise positioning of the blade axis. The base of the longitudinal shear machine should also have sufficient strength and rigidity, so that there will be no warping or deformation when the longitudinal shear machine is lifted, installed or moved for tool change. The accuracy of the slitting machine is ultimately reflected in the blade shaft, which not only requires good strength and stiffness of the blade shaft, but also has very high requirements for the parallelism of the upper and lower blade shafts, the rotation accuracy of the blade shaft, and the accuracy of the blade and the distance spacer. It can be said that the precision of a precision grade longitudinal cutting machine is comparable to that of a metal cutting machine tool.