Name: multi-use four rollers specification plate bending machine
Brand: shenchong
Availability: InStock

Product Details

Details of multi-use four rollers specification plate bending machine

Properties and Characteristics:

1.General Introduction:

Compared with the Symmetry three-roller rolling machine, the four-roller rolling machine can directly

pre-bend the plate ends without the aid of other devices, and the remaining straight edge is small;

compared with the nonsymmetric three roller rolling machine, it can be rolled into the workpiece not

to turn around the plate. Not only improve the efficiency, but also ensure the quality of the workpiece,

and the process is simple, easy to operate, also reduce the labor intensity.

2. The work roll

The upper roller of the machine is the main driven roller, the hydraulic motor with a reduction gear ratio

driven roller, the roller turn at a speed about 4 meters per minute, to complete the operation.

3. Supporting roller device for roller

Supporting roller devices of the machine: lifting of the lower and both sides rolls, dumping and resetting

of the fell down, these above are used hydraulic transmission, lower rolls and side rolls can lifting at same

time or alone. Lift position at both ends of the roller can be accurately displayed on the operating table.

The main configuration instructions:

The main low voltage electrical components: Schneider

Programmable controller PLC: Mitsubishi

Touch screen (LCD): Mitsubishi

Straight line potentiometer: German MOVO

Upper Roller: 42CrMo quenching and tempering

Bottom Roller: 42CrMo quenching and tempering

Cylinder sealing ring: JAPAN NOK

roller bearing: Large double row self-aligning roller bearing

(ZWZ Wafangdian china)

Hydraulic System: America FIRST

Oil cylinder: # 45 steel quenching and tempering,

finish boring, rolling, honing, the piston rod with #45 steel

quenching and tempering, cylindrical nickel phosphorus

The Roll Working process :

The roll working process have many different ways, customers can be decided by the demands.

The following is a reference:

Materials Feeding

While the lower roller lifting, the lower generatrix and upper roller

upper generatrix distance is slightly larger than the thickness. Then operate

the back-side roller rises, feed the steel sheet in level, make the end of the

sheet reaches the middle of the side roller for alignment, and then rises the

front-side roll upper generatrix to make it in the same horizontal with the

lower roll upper generatrix, and then drop the lower roll down to in suitable

position.

Pre-bending end

Rising the lower roller lifting and clamping the plate, jog rotation the

upper roller, make the length of the left end of the plate to the upper

roller and lower roller centerline is about 1.52 times of the plate thickness,

based on the workpiece curvature size, manipulate front-side roller rise

and pre-bending the end of the sheet (the oil cylinder pressure is

adjustable within some range according to thickness and different

materials.)

Pre-bending another end

Make the front side roller down to suitable position, and then operate

the roller rotates, make the right length of plate to the upper roller and lower

roller center-line is about 1.5-2 times the thickness of the steel plate, rising

the back-side roller, pre-bending the other end.

Initial bending

Operate all rollers lifting positions, bending the middle of the steel

plate, rotate the upper roller, make the rotation and materials

feeding in the same direction.

Initial bending can be divided into several times, generally 4-5 times.

Final bending

According to the curvature of the workpiece, operating the rollers to the

corresponding position, rotating the upper roller, doing the final shaped

bending.

Technical Data of specification plate bending machine

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