3x1500 Two roll Plate Rolling Machine

1、 Basic technical parameters:

1. Material yield limit: σs≤245 MPa    

2. Maximum roll width: 1500 mm

3. Maximum roll thickness: 3mm

4. Maximum pre bending thickness: 3mm

5. Minimum drum diameter at full load: Φ160 mm

6. Upper roller diameter: Φ135mm

7. Lower roller diameter: Φ370 mm

8. Rolling speed: 4m/min

9. Main motor power: 3 kw

10. Hydraulic station motor power: 3 kw

11. Hydraulic system working pressure: 16 MPa

12. Equipment weight: 2200 kg

2、 The purpose of the machine:

This machine is a specialized two roll bending machine used for the bending and forming of metal sheets. It can load the metal sheets in one go without the need to turn around to complete the bending and forming of both ends of the sheet, and roll them into circular or curved workpieces within a certain range. This machine is the most ideal bending and forming equipment in industries such as petroleum, chemical, boiler, shipbuilding, locomotive and vehicle, metal structure and mechanism manufacturing.

3、 Overview of Machine Structure

The lower roller of this machine is the driving roller, and the upper roller is the driven roller. The position of the upper roller is fixed, and the lower roller can move up and down. The lower roller lifting is driven by oil cylinders at both ends. The electrical control and operation are centrally controlled by the electrical system control panel located next to the machine. In order to facilitate the unloading of the molded cylindrical workpiece, the tilting bearing body on the right end of the roller on the machine is controlled by hydraulic transmission to tilt and reset.

1. Transmission principle

The lower roller of this machine rotates actively, while the upper roller is a driven roller. Its rotation is driven by the friction between the steel plate and each roller, and bearings are used at the shaft diameter of each roller.

2. Main transmission mechanism

The lower roller of this machine is the main transmission roller, and the reducer drives the lower roller to rotate at a linear speed of 4 meters per minute.

3. Left and right racks

The left and right frames are the main body of the two roll plate rolling machine, which adopts a welded structure and aging treatment. They are installed on the overall welded base to ensure sufficient strength and stability.

4. Upper and lower roller shafts

The material of the upper roller is 42CrMn, which has undergone quenching and tempering treatment with a surface hardness of HRC48~52. It has good comprehensive performance and meets the relevant provisions of JB3185-82 "Technical Conditions for Small and Medium Three Roll Plate Rolling Machines". The lower roller is made of steel core reinforced polyurethane with a single-sided thickness of 50mm.

5. Inverted and reset transmission structure

The flipping and resetting of the front bearing body of the upper roller is driven by a hydraulic cylinder, which is fast, convenient, and safe to operate.

6. Electric motors and hydraulic power motors

The main motor and hydraulic motor work smoothly and have reliable quality.

7. Lubrication

According to the operating conditions of the machine, two methods are adopted: box lubrication and regular oil lubrication.

The sliding guide surface, upper roller, and lower roller shaft diameters are lubricated regularly with oil cups.

The cycloidal pinwheel reducer of the lower roller main transmission adopts box type lubrication.

9. Security Protection System

To ensure the safe and convenient use and maintenance of the equipment, a protective cover has been installed strictly in accordance with relevant safety technical requirements and standards; In order to ensure that the power can be quickly cut off in case of accidents, emergency stop buttons have been set up on the control panel according to standard requirements; Equipped with overcurrent, overheating, overload, short circuit protection, safe and reliable, and safe operation; Various warning signs, nameplates, and text prompts are installed in electrical cabinets and other areas.

The electrical control system of the machine:

1. Structural composition:

The main components of the strong electrical part of the electrical system are selected from domestically produced products with good performance.

The NC control part is controlled by well-known domestic brands such as Xinjie PLC and Kunlun Tongtai touch screen.

2. Main technical indicators of the system:

The operating voltage of the system is 380V, 50HZ;

The ambient temperature is -5~45 ℃;

The relative humidity is 5% -85%.

3. Operation usage:

1. This system consists of a control panel and a foot switch, making it convenient for operators to control on site.

2. NC control, which can input the height of the lower roller rise, the running time of the lower roller, etc. through the touch screen, to achieve a series of actions such as feeding, coiling, starting and stopping, flipping to retrieve materials, etc.

4. Continuous operating environment of equipment:

(1) Power supply range: three-phase AC380V ± 10% 50HZ;

(2) Environmental temperature: - 10℃－45℃；

(3) Relative humidity: ≤ 95%；

(4) Altitude: ≤ 2500 m.

5、 List of Key Components: