Anhui Rolling Machine Manufacturer Anhui Three Roll Plate Rolling Machine Brand

Technical Description of W11-20 × 2000 Mechanical Three Roll Plate Rolling Machine

1, Usage Description

This equipment is a three roll symmetrical upward adjustment plate bending machine, used to bend metal plates of a certain thickness into cylindrical, curved and other parts at room temperature. Its working principle is rotational bending deformation. It is an essential equipment for manufacturing machinery and equipment in industries such as chemical, cement, shipbuilding, boilers, aviation, water conservancy, and power transmission and transformation towers.

2, Technical parameters

Number Parameter Name Unit Parameter

1. Machine model and specifications mm W11-20 × 2000

2. Maximum bending coil steel plate thickness mm 20

3 Maximum bending coil steel plate width mm 2000

4. Minimum bending coil diameter under full load: mm 900

Yield limit of 5-bend coil steel plate MPa 245

6 Upper roller diameter mm 270

7 Lower roller diameter mm 230

Center distance of 8 lower rollers mm 410

9 Main motor power kw 15

10 pairs of motor power kw 5.5

3, Structure and Transmission

1. Main components

(1) Upper and lower rollers: important components of the plate rolling machine, made of 45 # steel.

(2) Rack: The rack is made of Q235 steel plate welded structure. Divided into left and right racks, each with a lower roller bearing installed on the rack. There is a lifting screw inside the frame, and the upper end of the screw is connected to the bearing seats at both ends of the upper roller. It is equipped with a worm gear pair and a spiral pair at the bottom. Rotate the nut in the worm gear to raise or lower the upper roller.

(3) Reducer: The main reducer is the ZQ500 reducer. The auxiliary reducer is the ZQ250 type reducer.

(4) Unloading device: installed on one side of the reducer for balancing the upper roller during unloading.

(5) Base: welded from channel steel and steel plate. Install the frame, reducer, motor, etc. on it to form a whole.

(6) Electrical part: all installed in one electrical control cabinet for easy operation.

2. Transmission

(1) Main drive: The two lower rollers of this machine are the driving rollers, and the upper roller is the driven roller. The main motor drives the lower roller to rotate through a reducer and a pair of open gears. The frictional force between the steel plate of the upper roller and the lower roller drives it.

(2) Secondary transmission: The upper roller is raised or lowered by a secondary motor through a secondary reducer and a worm gear secondary spiral pair.

4, Operating instructions

The feeding of the metal plate is driven by the friction between the metal plate and the working roller. The plate is bent into an arc based on the three tangent points in contact with the working roller, and the required curvature radius is achieved by adjusting the lifting degree of the upper roller.

(1) When rolling: first confirm that the three rollers are in a parallel state, so that the distance between the upper and lower busbars of the upper rollers is slightly greater than the thickness of the plate. Then, feed one end of the plate into the middle of the lower roller, and operate the upper roller to lower and clamp the end of the steel plate. Operate the lower roller rotation (to align the rotation direction with the feed direction) to perform initial bending on the middle of the sheet metal. Adjust the lifting degree of the upper roller according to the size of the curvature radius, and repeat this process several times until the required curvature radius is reached.

(2) When unloading: Raise the upper roller to a certain height, unscrew the unloading device to press the tail of the upper roller, and then withdraw it

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4, Operating instructions

The feeding of the metal plate is driven by the friction between the metal plate and the working roller. The plate is bent into an arc based on the three tangent points in contact with the working roller, and the required curvature radius is achieved by adjusting the lifting degree of the upper roller.

(1) When rolling: first confirm that the three rollers are in a parallel state, so that the distance between the upper and lower busbars of the upper rollers is slightly greater than the thickness of the plate. Then, feed one end of the plate into the middle of the lower roller, and operate the upper roller to lower and clamp the end of the steel plate. Operate the lower roller rotation (to align the rotation direction with the feed direction) to perform initial bending on the middle of the sheet metal. Adjust the lifting degree of the upper roller according to the size of the curvature radius, and repeat this process several times until the required curvature radius is reached.

(2) When unloading: Raise the upper roller to a certain height, unscrew the unloading device to press the tail of the upper roller, and then withdraw it

The movable pin is pulled down by the movable inverted head, and the rolled metal cylinder can be unloaded from one end of the upper roller, thus completing the unloading work. After the unloading work is completed, reset the movable inverted head and insert the inverted head pin.

(3) Attention: Before rolling, the oxide slag around the unfolded part should be cleaned to avoid damage to the surface of the work roller during operation. The welded workpiece should be polished at the welding site before rolling or correction can be carried out on the machine. To prevent accidents, the upper and lower rollers must not be pressed against each other and there must be a gap greater than the plate thickness.



5, Lubrication system

The friction parts of the machine need to be lubricated and regularly lubricated to maintain the normal operation of the parts, and cannot be neglected. Inject engine oil into the gearbox. The remaining lubrication points must be regularly filled with mechanical oil, usually using 20-30 grade engine oil. Before adding, it must be filtered to remove impurities. Apply grease lubrication to the meshing parts of each exposed open gear, worm gear, and worm gear.



6, Electronic control system

The electronic control system of the equipment is all installed inside the control cabinet, with an operation console on top. Easy to operate. The main electrical appliances are produced by well-known domestic manufacturers, strictly in accordance with national standards, with reasonable structural layout and necessary safety protection measures.



7, Manufacturing and acceptance standards

According to the technical requirements proposed by the buyer, and in accordance with the factory's factory standards for acceptance, the supplier strictly inspects and controls the incoming quality of raw materials, components, and supporting parts during the equipment manufacturing process, and conducts a comprehensive inspection of the accuracy, specifications, performance, etc. of each major processing component.

8, Quality assurance measures

1. Quality assurance system

In order to achieve the goal of customer satisfaction, ensure that customer needs and expectations are determined, and translate them into the requirements of the company's products and services, the entire process of product control from design control, manufacturing process control, inspection control to whole machine delivery, installation, and service has been achieved. The operation of the quality system strictly follows the "Quality Manual," "Program Documents," "Work Instructions," and various relevant technical standards, management standards, enterprise self established standards, and various management systems. The product quality truly achieves full staff and full process control.

2. Quality assurance procedures for important purchased parts

The important purchased parts of this machine include: upper and lower roller blanks, bearings, electric motors, reducers, etc. Select qualified suppliers who have been evaluated as channels for procurement, and purchase according to the plan
3. Manufacturing process of main components

(1) Work roll: upper roll, lower roll

Cast steel ingots (chemical composition analysis) - Surface inspection - Forging blank - Annealing after forging - Flaw detection - Rough machining (mechanical property experiment) - Heat treatment (quenching and tempering) - Semi precision machining - Precision machining

(2) Forgings: gears, gear shafts

Forging blank - surface inspection - rough machining - flaw detection - heat treatment (quenching and tempering) - semi precision machining - precision machining - heat treatment (tooth surface quenching, etc.)

(3) Welding structure: frame, base, transmission box, etc

Plate entry (chemical composition and mechanical property inspection) - Plate pretreatment - Cutting - Welding - Weld inspection - Annealing treatment - Rough machining - Vibration aging - Precision machining

Note: Each of the above processes shall proceed to the next process after passing the inspection.



9, Supply scope, random data, and non supply scope

1. Scope of supply and random data

(1) Host device

(2) Electric control equipment (distribution cabinet and control panel)

(3) User manual (including circuit diagram and detailed list, list of vulnerable parts, basic diagram, etc.)

(4) Certificate of conformity, packing list, and detailed list of attachments.

2. Non supply scope

(1) Cable laying, wiring, and other accessories during installation.

(2) Planking around the machine

(3) Wiring and related materials from power supply to control cabinet.

(4) Grounding accessories and materials.

(5) Hydraulic oil and lubricating grease.



10, Equipment technical service and after-sales service

1. The warranty period is one year from the date of equipment delivery.

2. The equipment is designed, tested under no-load, load, and full load by the manufacturer, and installation guidance is provided.

3. The manufacturer implements lifelong maintenance for this equipment.


Ma'anshan Jude Machinery Technology Co., Ltd