
All the roller necks of this product are equipped with new rolling bearings for rolling mills, which have high transmission efficiency, long service life, low overturning moment of the frame, low friction resistance of the passive roller (upper roller), greatly improved non slip conditions, and can bend thinner steel plates.
This machine is a symmetrical upward adjustment three roll plate rolling machine. The two rollers are active rollers with fixed positions,
The upper roller is a driven roller and can move up and down. The upper roller can be adjusted to a parallel or inclined position relative to the lower roller to meet the needs of rolling circular or conical workpieces.
The rotation of the two rollers is driven by two motors through two independent deceleration systems installed in a specially designed box. To avoid mechanical interference and additional torque caused by the bending of steel plates and the elongation of the outer surface, resulting in different rotational speeds of the lower rollers at the feeding and discharging ends, thereby eliminating the mechanical impact and vibration generated, and improving the reliability and fatigue life of the parts; Eliminating the slipping phenomenon between the roller surface and the steel plate, overcoming the uneven friction of the roller surface, improving the surface quality of the product, and reducing the ellipticity of the product.
The upper roller lifting is a linear motion formed by a motor through a gear reducer, a transmission shaft, a worm gear pair, and a mother screw pair. The upper roller lifting has two speeds. Long empty travel, fast small motor; Short load travel, slow speed of large motor; Accurate positioning. It not only meets the requirements of the rolling process, but also saves energy. Simultaneously using a small motor for rapid lifting can provide safety protection for the transmission system.
The upper roller and two lower rollers are installed on the left and right frames to form the main body of the frame. The rack and gearbox are respectively installed on the chassis and fixed as a whole. The lifting and lowering of the upper roller, the forward and reverse rotation of the lower roller, and the braking are all electrically controlled. The control panel is in front of the machine.
In order to facilitate the removal of cylindrical workpieces from the upper roller, a tipping frame is provided at the left end of the upper roller,There is a pressing mechanism on the right end. The overturning of the overturning frame and the lifting of the upper roller during unloading are completed by mechanical devices; Manual adjustment of clutch closure during cone rolling.
The three roll plate rolling machine with this structure, due to the fixed position of the two lower rolls and their symmetry with the upper roll, directly rolls out workpieces with longer remaining straight edges. It is necessary to use specialized tools or other equipment to pre bend the end in advance to compensate for this deficiency. Due to its simple structure, easy manufacturing and repair, and economical cost, it is widely used in the production of medium plate tube parts.