The main components of the leveling machine

The leveler?is mainly used to correct various specifications of plates. The leveling machine consists of many parts. The main components of the leveler are described below.

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1. Rack section

The frame is the main body of the machine, which is composed of a base, a column, and a connecting beam, and is connected by 4 tension bolts to form a closed pre-stressed frame structure. The frame is a welded structure and is annealed after welding to eliminate internal stress. The frame has sufficient strength and rigidity to ensure a small elastic deflection under the maximum load and meet the needs of plate correction.

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2. Roller part

The roller part is the working part of the machine, including work rolls and support rolls. In order to meet the rigidity requirements of the work rolls, 3 rows of upper and lower support rolls are specially set up.

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The upper and lower support rollers are equipped with an inclined iron adjustment mechanism, which can be manually adjusted to their upper and lower positions to ensure good contact with the work roller. The upper and lower support rollers are in a whole row, and the support roller base is split, with reasonable structure. The upper support roller can also be drawn out separately along the machine longitudinal direction, which can be quickly replaced, which greatly reduces online maintenance time.

3. Movable beam

The movable beam is a single-piece closed welding structure, which is annealed as a whole after welding to eliminate internal stress. It has sufficient rigidity and strength to ensure the flattening accuracy of the plate and reduce the number of flattening. Using the guide surfaces on both sides of the sliding block, the movable beam can move up and down and corners, and the movable parts such as the movable beam can be drawn out from the frame of the frame laterally, which is easy to maintain and repair.

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4. Press down the corner mechanism

The pressing mechanism and the corner mechanism are integrated. The depressing corner mechanism is installed on the upper part of the frame and the connecting beam, using group technology, using two sets of the same moving system, driven by 2 brake motors, and 2 reducers driving 4 worm pairs and 4 screw pairs , So that the movable beam can be accurately and automatically positioned and quickly swing. Start 2 sets or 1 set of power system to realize the parallel lifting or tilting of the movable beam and the upper work roll, which can level plates of different thicknesses and materials, and achieve the best flatness requirements. The upper end of the movable beam is equipped with a balancing device to eliminate the screw gap and ensure the leveling quality. Start two press-down motors, and drive the screw rod to move up and down through the reducer, gear coupling, transmission shaft, and worm gear reducer to realize the parallel lifting of the movable beam mechanism. Start a single pressing motor to realize the swing of the movable crossbeam mechanism, which can make the movable crossbeam accurately positioned, which is more conducive to the leveling of the plate.

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5. The main drive system

All working rollers in the upper and lower rows and the upper rollers on both sides are equivalent active rollers. The main drive system consists of 9 AC variable frequency motors through a coupling-reducer-universal coupling-work roll device to make the equipment rotate. Two sets of speed reducers are distributed on both sides of the machine. One four-in and four-out drives all the lower straightening rolls, and the other five-in and five-out drives all the upper straightening rolls. This is the "equivalent full-split main drive" patented technology.

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6. Dry oil centralized lubrication system

The lubrication system of this machine includes three parts: thin oil splash lubrication in oil pool, concentrated dry oil lubrication, and manual regular lubrication. Except that the reducer adopts thin oil splash lubrication from the oil pool, and the guide surface and movable pin adopts manual regular dry oil lubrication, all the lubrication points of this machine mainly adopt the centralized dry oil lubrication of the electric double-line oil feeder.

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7. Electrical control system

This machine is equipped with a main and a sub-operating console, which are placed on both sides of the equipment. The main console uses PLC, contactors, micro relays and other components. The electrical control system adopts 380V, 50Hz AC power supply, the main circuit adopts contactor control, and the control circuit adopts electrical control.

8. In and out roller table

The feeding and discharging roller device is equipped with a power driving device, and the moving speed is matched with that of the main machine, which is reliable in operation and strong and durable.

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Wuxi?BONO?Machinery Manufacturing Co.,Ltd is a company specialized in steel coil straightening machine, slitting line, cut to length line and flat bar straightening and chamfering machine. Our company is a professional manufacturer of?leveling machine. If you are interested in leveling machines, don’t hesitate to contact us.

The working principle of the leveling machine

The leveler?is a commonly used equipment in plate processing and can be applied to the leveling of various cold and hot rolled plates. Because of its convenient and simple operation, its application range covers many industries such as machinery, metallurgy, building materials, chemical industry, electronics, electric power, light industry, etc., and it has become an indispensable product in industrial production.

Under the condition of large elastic-plastic bending, no matter how different the original bending degree is, the residual bending degree difference after rebound will be significantly reduced, and even tend to be the same. As the degree of repeated bending decreases, the residual bending after rebound will inevitably approach zero to achieve the purpose of correction.

The leveling machine is mainly used to correct various specifications of plates. The "Bauschinger effect" of the material is used to repeatedly bend the plates to gradually reduce the bending deflection, so that the various original curvatures gradually become a single curvature, and finally It is leveled to achieve the leveling accuracy required by the process.

The?leveling machine?is provided with an upper pressing mold and a lower pressing mold, wherein the upper pressing mold is fixed on the push rod of the hydraulic cylinder, and the cylinder body of the hydraulic cylinder is fixed on the support frame. An independent cooling water channel is provided in the upper mold and the lower mold.

The roller is made of wear-resistant forged steel. As the width of the machine is different, each leveling roller is supported by one or more sets of idlers in its length direction, so that the diameter of the leveling rollers can be minimized and the distance between the rollers is also reduced. The rollers can be individually adjusted in the vertical direction, so that they always support the full load. The surface of the roll has a standard processing finish, but for machines that level the aluminum plate, the surface of the roll is ground and polished. In addition, there are spiral grooves on the roller to gather foreign dust particles. The leveling roller is equipped with a scraper to scrape off the impurities adhering to the roller, and the scraped impurities are sent to the front of the machine through the channel for collection and removal.

The gap between the two rows of rollers can be adjusted by a special mechanism. Generally, the value of the gap is slightly smaller than the thickness of the steel plate, so that when the steel plate passes, it is subjected to multiple alternating bendings in opposite directions, so that the internal stress exceeds the yield strength of the material, So that the steel plate is leveled.

For the leveling machine used to straighten thin steel plates, the number of shaft rollers should be large, and the diameter of shaft rollers should be small; on the contrary, when correcting thick steel plates, the number of shaft rollers should be less and the diameter of shaft rollers should be larger. This is because the thinner the steel plate, the more elastic it is. During the correction process, more rollers are required to produce more wave deformations to overcome the elasticity and achieve the purpose of correction.

Uncorrected steel plates are uneven due to uneven internal organization and other reasons. When the steel plate is rolled by the shaft roller to produce wave deformation, its internal structure is re-adjusted, the structure is stretched to a certain extent, and the arrangement is more uniform. Therefore, the sheet becomes flat after passing through the wave-shaped rolling. This is the working principle of the multi-roll steel plate leveler leveling steel plate.

Wuxi?BONO Machinery Manufacturing Co., Ltd. is a company specialized in steel coil straightening machine, slitting line, cut to length line and flat bar straightening and chamfering machine. Our company is a professional manufacturer of leveling machines. If you are interested in leveling machines, don’t hesitate to contact us.

Principle and function of leveling machine

The structure of the leveling machines?is composed of a frame, a work roll, a movable beam, a pressing mechanism, a wheel blocking device, a main transmission device, a lubrication system, and an electrical control system. The leveling machine is suitable for sheet metal plates: cold and hot sheets, galvanized sheets, aluminum sheets, color-coated sheets, stainless steel sheets and other metal sheets.

If the surface of the sheet metal workpiece is not flat, it will degrade the quality of the final product. In addition, these parts will increase the cost due to subsequent processing and assembly difficulties. Cutting, stamping, nibbling, laser or plasma cutting, quenching and coating and other processing methods will cause unevenness of the workpiece due to changes in the internal stress of the workpiece.

The mechanical principle of the?leveling?machine: the leveling machine is equipped with an upper die and a lower die. The upper die is fixed on the push rod of the hydraulic cylinder, and the cylinder body of the hydraulic cylinder is fixed on the support frame. An independent cooling water circuit is arranged in the die, and the outlet and the inlet of the cooling water circuit are respectively located on the upper die or the lower die. The ratio of the radius/center distance of at least the first 5 rolls from the entrance of the leveling machine is the same as that of the traditional leveling machine,?and the ratio of the radius/center distance of at least the last 5 rolls from the entrance of the leveling machine is similar to that of the decurling machine?, and the advantage is that the center distance between the middle rollers of the leveling machine is increased. It can quickly quench and cool, while avoiding the erosion of impurity on the tool or blank, so as to ensure the quality of the surface and hardness metallographic structure of the tool or blank, and avoid the pollution of cooling oil.

The leveling machine is a commonly used equipment in sheet metal processing. The shape of the leveling machine mainly depends on the thickness, material and requirements of the strip to be calibrated. The thicker the material, the better the structural rigidity required, the fewer the number of rolls, the larger the roll length, the greater the power, and vice versa.

The leveling machine?is mainly used to straighten various specifications of plates and cut into blocks. This machine is suitable for the leveling of various cold and hot rolled plates. Because of its convenient and simple operation, its application range covers many industries such as machinery, metallurgy, building materials, chemicals, electronics, electric power, light industry, etc., especially in shipbuilding, rolling stock, boiler bridges, metal structure factories and other industries, becoming indispensable in production Essential products.

Wuxi BONO Machinery Manufacturing Co., Ltd. is an enterprise specializing in the production of steel coil straightening machines, slitting lines, cross-cutting lines, and flat steel straightening and chamfering machines. We have advanced production technology and excellent product quality. If you have any requirements for our leveling machines, please contact us. My?whatsapp:[email protected]