• Adjustable Three-Roll Downward Horizontal Rolling Machine
  • Adjustable Three-Roll Downward Horizontal Rolling Machine
  • Adjustable Three-Roll Downward Horizontal Rolling Machine
  • Adjustable Three-Roll Downward Horizontal Rolling Machine
  • Adjustable Three-Roll Downward Horizontal Rolling Machine
  • Adjustable Three-Roll Downward Horizontal Rolling Machine

Adjustable Three-Roll Downward Horizontal Rolling Machine

After-sales Service: Product Package After-Sales Service
Waterproof Rating: IPX-8
Warranty: The Warranty Period Is 12 Months or 18 Months Upon
Condition: New
Certification: ISO 9001:2008, SGS
Automation: Automatic
Customization:
Diamond Member Since 2023

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Manufacturer/Factory

Basic Info.

Model NO.
W11XNC60X2000
Suitable for
Copper, Aluminum, Alloy, Carbon Steel, Stainless Steel
Type
Roller-Bending Machine
Transport Package
Strong Packaging to Prevent Rain, Snow, Moisture,
Trademark
JSYZSK1
Origin
China
HS Code
84622910
Production Capacity
2000 Sets Per Year

Product Description

1. The structure of the equipment 
The machine belongs to the hydraulic three-roller plate bending machine, which is used to roll the steel plate into a cylindrical, circular arc and rounding function;
The upper roller can be moved vertically;
The pre-bending is achieved by the horizontal movement of the lower roller, and the lower roller is in an asymmetrical position relative to the upper roller;
When rounding and calibrating, the working roller is driven to provide the coiling torque for the coiled sheet;
The elevation of the lower roller remains unchanged, which is convenient for feeding and operation;
The three rolls are active rolls, the lift of the upper roll and the horizontal movement of the lower roll are driven by hydraulic pressure, the main cylinder is set down, synchronization is controlled by computer, synchronization accuracy is ±0.15mm. The equipment is compact in structure, small in size and high in precision. It is especially used in cold and hot coiling machine.
2.Main technical parameters
NO Name Unit Parameters
1 Three roll plate bending machine type / Variable center distance lower roller level adjustable
2 Rolled sheets yield to the limit MPa ≤245
3 Maximum coil thickness mm 40
4 Maximum pre-bent plate thickness mm 45
5 Minimum roll diameter at full load mm F20 00
6 Maximum bin width mm 3200
7 Remaining straight edge thickness mm 2.5 times the thickness of the plate
8 Roll speed m/min 4
9 Upper roll diameter mm F460
10 Lower roll diameter mm Φ400
11 Two lower roller center distances mm 480-680
12 Work roller material / 42CrMo (tempered HB260-300).
13 The way the working roller moves / Hydraulic cylinder driven
14 Hydraulic system pressure MPa 20
15 Hydraulic motor torque KN.m 12
16 Total installed power KW 50
17 Hydraulic cooling system / Oil cooler
18 Roller drive method / Hydraulic motor + planetary gear reducer
19 Lubrication system / It adopts automatic lubrication at start-up and timed forced lubrication

20
operating system / Two sets of operation systems: remote control and movable operating platform
system, but mutually secure interlocking, only one system can be used at a time. Touchscreen movable operator station.
21 Control mode / Manual (wireless) + electronically controlled
  • Main structur

Adjustable Three-Roll Downward Horizontal Rolling Machine

 
NO Name
1) Front frame
2) Rear frame
3) chassis
4) Roll on
5) Coupling
6) Planetary reduction gears
7) Hydraulic motor
8) Lower roller
9) The upper roller moves the drag plate
10) The lower roller moves the cylinder
11) Front opening unit
12) Reverse and support systems
13) Hydraulics and systems
14) Power supply unit
15) Control cabinet
16) Protection and security equipment

Adjustable Three-Roll Downward Horizontal Rolling Machine

The main structural components of the bending machine are as follows:
1) Mechanical structure
2) Upper roller device
3) Lower roller device
4) Overturning device
5) Option attachments
6) Hydraulic system
7) Lubrication system
8) Electrical system
9) Safety device

3-1. Upper roller device

 

Adjustable Three-Roll Downward Horizontal Rolling Machine

1) Upper roller 2) Hydraulic motor 3) Reduction gear 4) Overturn bearing seat 5) Fixed bearing housing 6) Main oil Cylinder 7) Skateboard
(Illustration of upper roller device).
The upper roller device is mainly composed of upper roller, main oil cylinder, upper roller bearing seat, double row spherical rolling bearing, etc.
The material of the upper working roller is 42CrMo, which has high strength and toughness, and is heat treated HB260~300.
The upper roller is preset with a drum shape with 50% uniform load, which improves the rigidity of the upper roller and greatly improves the straightness of the product.
Two master cylinders provide the pressing force required to coil the plate, the cylinder block is 45 and the piston is 45 steel forgings, the tempering treatment is HB215-255, and the main cylinder is Yx seal.
Double row spherical bearings are selected for low-speed, heavy-duty bearings.
The lifting and lowering synchronization of the upper roller is controlled by PLC, and the synchronization accuracy is ±0 Within 20mm.
Both ends of the upper roller can be raised and lowered independently in order to realize the coiling of the cone.
The main transmission device is composed of hydraulic motor + planetary reducer, which directly drives the upper roller.
The main drive can be reversed forward and reverse to power the coiling of the plates.
A hydraulic motor that converts pressurized fluid energy into mechanical energy and then to the shaft via planetary reduction gears.

Adjustable Three-Roll Downward Horizontal Rolling Machine
1)Hydraulic motor 2) cycloid reduction gear 3) coupling 4) stop gear

 


3-2. Lower roller and horizontal moving deviceAdjustable Three-Roll Downward Horizontal Rolling Machine
1) Lower roller 2) side hydraulic cylinder 3) bearing housing 4) slide plate 5) guide rail 7) horizontal guide 8)Anti-collision travel limit block 9)Position sensor
(Illustration of lower roller device).
The lower roller device is composed of lower roller, lower roller bearing seat, double row spherical rolling bearing, etc.
The material of the lower working roller is 42CrMo, which has high strength and toughness, and is heat treated HB260~290.
Double row spherical bearings are selected for low-speed, heavy-duty bearings.
The horizontal movement of the lower roller is driven by the cylinder respectively, the structure is external, and it is installed on the inside of the frame bed; The overall horizontal movement synchronization of the lower roller is controlled by the PLC, and the synchronization accuracy is ±0 Within 2mm.


3-3. Frame, support beam and chassis part
Adjustable Three-Roll Downward Horizontal Rolling MachineAdjustable Three-Roll Downward Horizontal Rolling MachineAdjustable Three-Roll Downward Horizontal Rolling Machine

The mechanical structure of the machine is mainly composed of 3) bed, 4) front frame 1) rear frame 2)The body consists of a base

The fixed side frame and the overturned side frame are composed of steel plate welded structure, which has the advantages of light weight, low cost, good workmanship and short production cycle.

The racks on both sides are fixed with flat keys, fixed on the base by bolts, and the connecting beams are used to connect the racks on both sides together, so that the whole machine has good rigidity.
The racks on both sides are equipped with lower roller motion guides, which are a closed frame structure. The force in the process of bending is borne by the racks on both sides, and the base not only plays the role of supporting the weight of the machine and ensuring the accuracy of the equipment, but also connects the whole machine into one. Designed for heavy-duty welded box beams with sufficient strength and stiffness to withstand maximum downforce at maximum loads.
The mounting surfaces on the edges of the rack and other parts are machined.
The sliding rails are lined with wear-resistant m
aterials and have a rail gap adjustment device. Each rail may be exposed with a protective cover to prevent damage to the rail.

3-4. Balancing device and tipping device
Adjustable Three-Roll Downward Horizontal Rolling Machine

 

1) Support support 2) Stroke limit switch
(Balancing device)


1) Upper roller 2) Vertical front cylinder 3) Open the tie at the front end
4) Overturn the cylinder 5) Overturn the bearing seat
(tipping over device).
The balancing device is composed of a support bracket and a limit switch.
After the bearing body of the upper roller is overturned, the balancing device presses the tail of the upper roller to maintain the balance of the upper roller.

The tipping device is composed of an overturned cylinder, etc., after the product is completed, open the tip-over bearing seat and take out the product.

3-5. Lubrication system
Reasonable lubrication of the transmission parts and sliding surfaces of the machine is an effective measure to reduce power consumption and improve the life of the machine, so it is necessary to select a reasonable lubricating grease and establish the necessary lubrication system.

3-5-1. Lubrication method
According to the working conditions of this machine, three ways are adopted: box lubrication, automatic centralized lubrication and regular oil lubrication.
The neck position of the upper roller and the lower roller shaft adopts spherical roller bearings, and the grease is applied fully during assembly and large and medium repairs, and manual regular lubrication is used when working at ordinary times. The upper and lower side roller bearings should be disassembled after one year or 2000 hours of work in the machine, and the bearings should be cleaned and replaced with new grease. Each sliding guide surface adopts an automatic centralized lubrication system. The gear reducer of the main drive of the upper and lower rollers adopts oil pool splash lubrication.

3-5-2, the choice of lubricating oil
For the aligning roller bearings of each roller, it is recommended to use general lithium-based grease No. 1 (GB7324-1994), if other types are used when the grease is substituted, the dropping point must not be less than 1600C, and the penetration degree is 325~360 range of grease.
Automatic centralized lubrication recommends the use of No. 00 extreme pressure lithium base grease (GB7323-1994) reducer to choose 220# industrial gear oil.

3-5-3,Lubrication system and precautions
(1) Before each shift of work, oil should be filled into each lubrication point to check whether the lubricating oil in the gearbox is at the specified oil level.
(2) The lubricating oil must be clean, meet the standard, and must not let impurities mix.
(3) Each sliding mating surface should be kept clean, and the oxide scale and dust generated during the production process should be removed in time to prevent early wear of parts.
(4) The automatic centralized lubrication point is generally supplied with oil every 8 hours, and the time is about 30 minutes; The upper, lower and side roller journals are manually lubricated regularly, and sufficient grease is applied during assembly and large and medium repairs, and the oil is supplied once every three months. The specific lubrication system depends on the load operation.
(5) The lubricating oil of the deceleration chassis body is replaced every half, at least once a year; If the machine is in continuous working condition for a long time, it is replaced every three months, at least once every six months.
(6) The whole lubrication system should be cleaned once 150 hours after the machine starts working, and at least once a year later. If the machine is in a continuous full load state for a long time, it should be cleaned once every six months.
 
4. Hydraulic system

4.1. General overview
The function of the hydraulic system: drive the rotation of the upper and lower rollers, drive the lower roller to do horizontal movement by the oil cylinder, the pouring and reset movement of the inverted head body and the balance of the upper roller.
It can accurately control the vertical lifting of the upper roller and the horizontal displacement of the lower roll. The work roller can be kept in any position.
The machine is equipped with a hydraulic circuit that controls the synchronous rotation of the rollers to maintain consistent line speed, so that the workpiece can be straightened and positioned quickly and accurately before winding.
The integrated valve block design of the hydraulic control system for easy maintenance ensures good functionality and operational reliability of the equipment, with oil filtration, industrial chiller cooling system. All hydraulic systems must not leak oil.
The system pipeline is neatly arranged and easy to operate; The bending of metal oil pipes in hydraulic pipelines is natural and reasonable.
The hydraulic oil tank is equipped with an industrial
cooler to reduce and stabilize the oil temperature, which cannot be greater than 55 °C.

The hydraulic components adopt first-class famous brand products to ensure that the hydraulic system can be used for a long time without leakage.
For convenient commissioning and maintenance, there are suitable pressure measuring points and bleed heads on the hydraulic devices and pipelines.
The hydraulic station, hydraulic components and pipelines are permanently marked in detail, and consistent with the drawings, providing detailed common fault phenomena of the hydraulic system of the bending machine and their elimination methods.
The hydraulic system has oil suction and return oil filters to ensure the cleanliness of the system, and air filters to ensure the evaporation of water in the oil tank.
The hydraulic system is composed of oil pump, valve group, fluid connection, hydraulic accessories, etc.
The hydraulic valve adopts the superimposed valve series, and the pipeline layout is simple and the maintenance and debugging are convenient.
The system consists of four circuits, overpressure protection and pressure regulation circuit, synchronous circuit, speed loop, and working roller speed control circuit.
The pressure regulation circuit regulates the system working pressure through the main relief valve. The system working pressure is 20MPa.
The synchronous circuit is synchronized by the proportional valve to the horizontal movement of the lower roller; The displacement sensor detects that the positioning accuracy of the upper roller synchronization ± 0 2mm.
The speed loop controls the overturning and reset of the machine on the tipping side, and adjusts the throttle speed of the return circuit through the throttle valve.
Servo technology is applied to control the flow rate and control the speed of the working roller by controlling the proportional valve.


4-2. Various protections
The hydraulic system has a monitoring function, the hydraulic system each key pressure output point and oil temperature to monitor, when the fault occurs, the system can automatically stop the alarm, and prompt the fault point.
The horizontal movement of the lower roller and the tipping of the tipping frame are respectively protected by relief valves.

5. Electrical control system

5-1. General overview
The equipment electronic control system consists of an electric control cabinet, an operation console and a wireless remote control. Power supply three-phase four-wire system 380V/50Hz (voltage fluctuation ± 10%).
The control circuit adopts PLC programmable controller system, which has few relays, reliable action and long life.
The control cabinet is equipped with all control buttons and indicator lights for the completion of the product rolling process to control the operation of the whole machine.

5-2. Various protections
Each motor has a corresponding circuit breaker for overcurrent short-circuit protection and thermal relay for overload protection;
The horizontal movement of the lower roller has a corresponding limit switch for limit protection;
The tipping and resetting of the tipping cylinder are respectively equipped with upper and lower limit switch limit protection;


5-3. Various interlocks
After the tipping frame is fully reset, the upper roller lifting, the horizontal movement of the lower roller and other actions can be carried out ("tipping frame reset" is detected by the limit switch);
When the upper roller is located in the upper position, the lower roller moves horizontally and the overturned side falls separately cannot be carried out (the "upper roller upper position" limit switch is used for detection);


5-4. Fault indication
When the motor is overloaded, the fault indicator prompts;
When the PLC fails, the fault indicator light prompts.

6. CNC system
6-1. General overview
The whole machine has numerical control and manual control system, which can be easily converted. It has the characteristics of strong anti-interference, long service life, seismic resistance and stable operation. The control system has screen display function, program control function, soft protection function, and man-machine dialogue function. The operating control cabinet (box) should be two, one of which can be moved around the device.

6-2. The function of numerical control
Real-time monitoring capabilities
The computer screen displays the displacement amount of the upper roller main cylinder, the horizontal movement of the lower roller, the upper roller pressure and lower force, and intuitively displays the real-time status of each movement, the relative position and the output status of the hydraulic solenoid valve when the upper roller rises and falls, the lower roller moves horizontally, and the overturning frame action.
Human-machine dialogue function
Through the touch screen input and display, the input, editing, modification, storage and other functions of the rolled workpiece parameters can be realized;
The computer automatically detects and controls the position of both ends of the upper and lower rollers according to the set parameters to ensure that the synchronization accuracy is ± 0 2mm.
The displacement sensor has a displacement resolution of 0.05mm and a display accuracy of ±0.05mm.
It has automatic fault diagnosis function.
It has the function of soft limit protection of each component.


7. Technical characteristics of plate bending machine

7-1. Working roller drive
The main drive system of the bending machine adopts a hydraulic motor plus a planetary reducer to directly drive the upper working roller to rotate and provide the torque required by the bending machine, and can adjust the speed according to the requirements of the bending process. Compared with the traditional transmission method, it not only greatly reduces the floor space, but also avoids the inconvenience of the traditional transmission method in installation and adjustment, which is convenient for the installation and transportation of the machine when changing the site, and also avoids the transmission unevenness caused by the inconsistency between the main engine and the transmission part when making the foundation.

7-2. Horizontal movement device
a. The horizontal movement mechanism of the machine is hydraulic drive, and the hydraulic drive is selected to meet the technological requirements of synchronous roll movement when pre-bending and coiling plates, that is, the synchronous movement of the left and right sides of the roller movement process is automatically controlled by the PLC system without being affected by machining errors, mechanical wear failures and other factors, and after the pre-bending is completed, The two lower rollers can automatically return to the neutral position, to ensure that when rolling, because the two lower rollers are integral and symmetrically arranged, its horizontal force becomes internal force, the supporting force on the piston cylinder is very small, when the two lower rollers are moved horizontally, the upper roller does not exert pressure, it is only affected by the friction brought by the weight of the lower roller, plate, etc. In the structural arrangement, the horizontal movement mechanism is externally installed on the bed inside the frame, which is convenient for maintenance and adjustment, and at the same time makes the lower roller frame have a large space, which is convenient for installing and using rolling bearings, reducing energy loss, and easy to lubricate.
b. The horizontal moving guide rail of the two lower rollers is arranged under the frame, because the guide rail is compressed, the U-shaped guide rail is used and the axial radial positioning key is used to position, and the positioning is accurate; The guide rail structure is simple and the force is good. The lower roller horizontal movement mechanism is moved in a fixed frame structure, which has the advantages of good force.
 

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Diamond Member Since 2023

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Manufacturer/Factory
Registered Capital
52580000 RMB
Plant Area
498700 square meters