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The hydraulic plate rolling machine is a kind of equipment that uses working rollers to bend the sheet metal. It can form parts of different shapes such as cylindrical parts and cones. It is a very important processing equipment for metal processing industries.

1. Working Principle of Hydraulic Plate Rolling Machines

The working principle of the hydraulic plate roll bending machine is to move the work roll through the external force of hydraulic pressure, so that the plate is bent or rolled into shape.

According to the rotation movement and position changes of working rollers of different shapes, parts such as oval, arc, and cylindrical parts can be processed.

The upper roller of this machine can be vertically raised and lowered, and the vertical lifting hydraulic transmission is obtained by the hydraulic oil in the hydraulic cylinder acting on the piston rod.

The lower roller is driven to rotate, and the output gear meshes through the reducer to provide torque for the rolling plate.

The lower roller has a support roller, and can be adjusted. The upper roller is in the shape of a drum, which improves the straightness of the product and is suitable for various cross-sectional shapes of ultra-long specifications.

2. Plate Rolling Process of Hydraulic Bending Rolls

The rolling process of the hydraulic plate rolling machine is mainly divided into the following steps:

1) Feed the sheet material and perform the material matching

2) The upper roller moves horizontally to the X1 position, then descends to the Y1 position, and the lower roller reverses to make the steel plate to the forming position;

3) The lower roller rotates forward while pressing down;

4) The plate bending roll machine upper roller presses down to the Y2 position, and the lower roller continuously rotates forward;

5) Stop at the end of the plate, stop by pressing Y3 on the upper roll, and directly press and pre-bend the end of the plate;

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6) The upper roller is lifted to Y2, moved horizontally to the X position, and the same position Y2 is pressed down, and the lower roller rotates forward;

7) Stop at the end of the sheet, stop at Y3 position by pressing with the upper roller, and directly press and pre-bend the end of the sheet;

8) Move the upper roller to the X position, press down to the Y4 position, and the lower roller rotates forward and backward to compensate for bending. 

In general, the Shenchong hydraulic plate rolling machine adopts the upper roller lifting hydraulic transmission and horizontal movement, driven by the lower roller, and the electric centralized control operating system, which can complete the pre-bending of the two ends of the plate and roll the cylindrical and arc-shaped workpieces at one time. It can also perform certain shaping and leveling of the metal sheet, which has the effects of direct pre-bending, saving trouble and saving materials, and is equipped with NC system control to improve the degree of automation.

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The general working principle of the roller crusher

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Each stick of the roller crusher is driven by a separate motor. There is also a motor that drives a stick with a fixed bearing through a belt drive. The other end of the roller shaft of the fixed bearing is equipped with a gear, and the movable stick is driven by the gear. Due to the change of material properties, the movable stick moves left and right, so the tooth height of the gear must be increased to prevent the teeth from being disengaged. Therefore, the traditional pair of roller crushers are driven by long-toothed gears, which can allow the center distance of the two rollers to be changed during operation without breaking the meshing characteristics.

The working surface of the roller depends on the requirements of use, and it can be smooth or toothed or grooved. For crushing hard and abrasive materials, smooth rollers can be used. Because the crushing effect of the smooth roller on the material is mainly crushing and grinding, it is mainly suitable for medium and fine crushing of medium-hard materials.

In order to obtain products of different particle sizes, the size of the discharge opening of the roller crusher must be adjustable. In order to prevent the crusher from being damaged by iron, it must be equipped with a safety device. The movable roller shaft of the roller crusher is supported by spring pressure. Under normal working conditions, the spring force is sufficient to overcome the crushing force required by the crushed material. Spacers with different thicknesses are placed between the frame and the movable bearing. By changing the number of spacers, the width of the discharge opening between the two rollers can be adjusted to meet the requirements of different product sizes. When there are materials that cannot be broken into the crushing cavity, the spring is compressed. , the movable roller retreats and the discharge port increases. After the material is discharged, the movable roller resets under the pressure of the spring. This is the mechanical discharge opening adjustment and overload protection device (safety device).

Its working mechanism is two cylindrical rollers. The roller 2 is supported by the fixed bearing 4 , and the roller 1 is supported by the movable bearing 5 . The two rollers are driven to rotate relative to each other by a motor. The material is crushed by the friction of the two relatively rotating rollers, and the crushed material is discharged from between the two rollers by gravity. The spring 6 is sufficient to balance the pressure developed between the two rollers. If a non-broken object falls between the two rollers, the bearing 5 can be pushed to compress the spring 6 to cause a large gap to allow the non-broken object to pass through. continue working.

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