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Vertical Plate Rolling Machine

Vertical Plate Rolling Machine
W11YV-30 × 2500 Vertical plate bending machine

Type

vertical

Pressure on upper roller

190T

Coil width

2500mm

Roller working surface length

2600mm

Coil thickness

30mm

Symmetrical roll

T30*B2500*R1000mm(Q235-A)

Upper roll diameter

φ400mm

Lower roll diameter

φ360mm

Center distance between two lower rollers

550mm

Bending speed

About3.5m/min

Upper roller pressing speed

约130mm/min

Main hydraulic motor

30KW

Hydraulic motor

11Kw

Hydraulic motor

32000N.m

W11YV-30 × 2500 Vertical plate bending machine

Description:

The hydraulic three-roller symmetrical vertical plate bending machine is a product developed by our company with the introduction of new international technologies and has its own international advanced level. In the field of plate rolling machines, it has many unique features especially for high-precision and high-efficiency rolls. It is the most ideal product among plate rolling machine varieties.

  This machine is a hydraulic three-roller plate rolling machine for rolling steel plates into a cylindrical shape.

  The upper roller can move verticallyWhen rounding, the two rollers are driven by the hydraulic motor and planetary gear reducer.Since the lower roller level is unchanged, it is related to feeding and operation.

(Simplified drawing of W11Y-30 * 2500 hydraulic three-roller plate rolling machine)

1.Main body overview

1-1. Main body overview

This machine is a hydraulic three-roller plate rolling machine. It is used for the processes of rounding and straightening carbon steel and low-alloy steel for all kinds of containers at one time under normal temperature.

The upper roller can be moved vertically. When rounding, the two rollers are driven by the motor and reducer.

Since the lower roller has the same elevation, it is easy to feed and operate.

2.The main technical parameters of the equipment

Type

vertical

Pressure on upper roller

190T

Coil width

2500mm

Roller working surface length

2600mm

Coil thickness

30mm

Symmetrical roll

T30*B2500*R1000mm(Q235-A)

Upper roll diameter

φ400mm

Lower roll diameter

φ360mm

Center distance between two lower rollers

550mm

Bending speed

About3.5m/min

Upper roller pressing speed

约130mm/min

Main hydraulic motor

30KW

Hydraulic motor

11Kw

Hydraulic motor

32000N.m

3.Main structure

The main structure of the equipment is composed of an upper roller device, a lower roller device, a main transmission device, a tipping device, left and right side frames, a chassis and a balance device.

3-1 、 Upper roller device

The upper roller device is composed of a main oil cylinder, an upper roller bearing seat, an upper roller, and a double-row self-aligning bearing.

The two main oil cylinders provide the required pressure for rolling the plate. The working pressure of the main oil cylinder is 19.5 MPa.

Double-row self-aligning bearings use low-speed, heavy-duty spherical roller bearings.The upper roller is in the shape of a drum. When designing, the load coefficient of the maximum pressing force of the upper roller is 0.2 and the load is evenly distributed to preset the compensation for the deformation and deflection of the upper roller.

The material of the upper roll is 45 # steel, which is heat-treated HB240-260 after gold processing. According to the roll steel standard JB / ZG4289-86, the stiffness conforms to (1/700 ~ 1/1000) LL—referring to the distance between the centerlines of the frames on both sides.

(Upper roller device)

3-2, lower roller device

The lower roller device is composed of a lower roller, a lower roller bearing seat, a lower roller input gear, and a lower roller sliding bearing.

The material of the lower roll is forged steel 45 # steel, which is heat-treated HB240-260 after gold processing. According to the roll steel standard JB / ZG4289-86, the stiffness conforms to (1/700 ~ 1/1000) LL—between the centerlines of the frames on both sides. distance.The lower roller sliding bearing uses SF-1 self-lubricating composite material.The main drive of the lower roller provides power, and the output torque, input gear of the lower roller, and open transmission torque to the lower roller.

3-3. Main transmission

The main transmission is composed of a hydraulic motor, a planetary gear reducer, etc., and the output gear drives two lower roller gears.

The main drive can be forward and reverse to provide the rolling torque for the rolling of the plate. The planetary gear reducer can be installed in both vertical and horizontal types. The reducer must be equipped with a compensation oil tank to compensate the lubricating oil.Output gear and lower roll gear quenching HRC45 ± 5;

3-5, overturning device

The overturning device is composed of a ram, an overturning oil cylinder and the like. The tipping cylinder uses a double-section cylinder.

Overturned cylinder piston rod is chrome-plated.

The overturning of the overturning device facilitates the product to be taken out in the axial direction of the roller.

Overturning device does not work during roll-up.

3-6. Fixing, overturning side frame, chassis, mounting baseThe fixed and overturned side frame and chassis are made of steel plate welded parts. Annealing is performed after welding to remove stress and shot rust.

The fixed, tipped side frame is used to house the two main cylinders.The chassis adopts a frame structure, which has a high torsional section coefficient and few anchor bolts, and is easy to install and debug.

When standing up, the coupling beams for fixing and overturning the side frame will be fixed to form a whole.

The mounting base is used for fixing the rolling machine when standing up.

4.Hydraulic system

4-1.Overview

The hydraulic system consists of gear pumps, valve groups, fluid connections, hydraulic accessories and so on.

The hydraulic valve is a superimposed valve series, with simple pipeline arrangement and convenient maintenance and debugging.

The system consists of three circuits, including overpressure protection and pressure regulation circuits, synchronization circuits, and speed circuits.

The pressure regulating circuit regulates the working pressure of the system through the main relief valve. The system working pressure is 19.5MPa.

The synchronization circuit synchronizes the upward and downward coarse steps of the upper roller through the shunt throttle, and the throttle is adjusted up and down. The displacement sensor detects the upper roller synchronization accuracy ± 0.15mm.

The speed loop controls the overturning and resetting of the machine on the overturning side, and the throttling valve adjusts the loop throttling speed.

4-2, various protections

The upper roller is raised and lowered with overflow valves for pressure limit protection.

5.Electrical control system

5-1.Overview

The equipment electronic control system consists of an electric control cabinet, an operation console, and a handheld button box. Power supply three-phase three-wire system 380V / 50Hz.The control circuit uses a PLC programmable controller system with few relays, reliable operation and long life.

The control cabinet is equipped with all control buttons, indicators, programmable touch displays, etc. that complete the rolling process of the product to monitor and control the rolling work status of the entire machine.

5-2, various protections

Each motor has a corresponding circuit breaker for over-current short-circuit protection;Each motor has a corresponding thermal relay for overload protection;

There are corresponding limit switches for upper roller movement for limit protection;Overturning and overturning cylinders are provided with upper and lower limit switch limit protection respectively;

The main power circuit breaker has a shunt release, and there are "emergency stop" buttons on the side of the operating table and the overturning bracket to remotely cut off the main power.

5-3, various interlocks

After the overturning frame is fully reset, the upper roller can be lifted and lowered, and the lower roller can be reversed.

5-4, fault indication

When the lower roller motor is overloaded, the fault indicator prompts;

When the PLC fails, the fault indicator prompts.

6.Digital display system

6-1.Overview

This system uses a rotary encoder and a highly reliable industrial controller to form a reliable performance and strong real-time control system.

 6-2 、 Digital display function

The digital display system has functions such as real-time monitoring of the rolling process, data transmission, and power-off memory, and the human-machine interface is displayed in Chinese directly and clearly.

*** Real-time monitoring function ***

The display screen shows the amount of displacement of the upper cylinder (Yg, Yf).

*** Touch screen function ***

Through the system operation input and LCD display, the functions of editing, modifying, etc. of the rolled workpiece parameters can be realized.

The industrial controller PLC automatically detects and controls the positions of the two ends of the upper roller to ensure synchronization accuracy of ± 0.15mm. The displacement resolution of the displacement sensor is 0.05mm, and the display accuracy is ± 0.05mm.

With automatic fault diagnosis function.

7.Design, manufacturing, installation and acceptance standards of rolling machine

JB / T8796-1998 Rolling machine accuracy

JB / T1829-1997 General technical requirements for forging machinery

GB17120-1997 forging machinery safety technical conditions

JB / T8609-1997 Technical conditions for welding parts of forging machinery

JB3623-84 Forging machinery noise measurement method

JB / ZQ4000.5 General technical conditions for castings

JB / ZQ4000.9 General technical conditions for assembly

JB / ZQ4000.10 General technical conditions for painting

GB3766-83 General technical requirements for hydraulic systems

GB16754-1997 Design principles for emergency stop of machinery safety

GB / T5226.1-1996 Electrical equipment for industrial machinery-Part 1: General technical requirements

8.Configuration of main standard parts

8-1 、 Double-row self-aligning bearing Wafangdian

8-2. Main hydraulic valves

8-3. Piston pump Qidong Hydraulic Parts Factory

8-4.Motor Nantong Hengli

8-5. PLC programmable controller OMRON

8-6 、 LCD display

8-7 、 Main electrical components Tianshui 213

8-8.Cylinder Nantong, Jiangsu

8-9. Sealing ring Shenyang Leather Equipment Factory, Shanghai Rubber Factory

8-10. Planetary gear reducer Ningbo, Zhejiang

8-11. Motor Ningbo, Zhejiang