1、 Mechanical three roll plate rolling machine, used to roll steel plates into cylindrical shapes.

The upper roller presses down, and the power is transmitted by the motor through the reducer, transmission roller, worm gear rod pair, and screw nut pair. The rolling drive drives the lower roller to rotate through the main motor, main reducer, and open gear, and becomes the active roller during plate rolling. Due to the unchanged elevation of the lower roller, it is convenient for feeding and operation.

2、 The design, manufacturing, and acceptance of the symmetrical upward bending machine meet the following standards

3-1. JB/T8796-1998 Precision of Plate Rolling Machine

3-2. JB/T31852-1999 Technical Conditions for Small and Medium Three Roll Plate Rolling Machines

3-3. JB/DJ0001007 General Technical Conditions for Forging Machinery

3-4. GB-T7120-1997 Technical Conditions for Mechanical Safety

3-5. GB-T3766-2001 General Technical Conditions for Hydraulic Systems

3-6. JB/T5994-1992 General Technical Conditions for Assembly

3-7. GB/T5226.1-1996 General Technical Conditions for Industrial Machinery and Electrical Equipment

3-8. JB9971-1999 Noise Limits for Three Roll Plate Rolling Machines

3-9. JB/IQ400.5 General Technical Conditions for Castings

3-10. JB/T5946-1991 General Technical Conditions for Painting

3-11. GB16754-1997 Mechanical Safety Emergency Stop Design Principles



3、 Main structure

The main structure of the equipment consists of an upper roller device and a pressing device, a lower roller device, a main transmission device, a flipping device, left and right side frames, and a base.

3-1. Upper roller device and pressing device

The upper roller device consists of an upper roller, an upper roller bearing seat, etc.

The material of the upper roller is 45 # steel forging, quenched and tempered HB245-285, and sliding bearings are installed on the bearing seats at both ends of the upper roller.

The upper roller sliding bearing is made of SF-2 composite material.

The pressing device is powered by a secondary motor and transmits torque mechanically through a reducer, worm gear, and screw nut, driving the upper roller to move up and down. The material of the worm gear and nut is zinc based alloy ZA27; The worm gear material is a 45 # forging, which has undergone quenching and tempering treatment HB245-285.

3-2. Lower roller device

The lower roller device consists of a lower roller, a lower roller bearing seat, a lower roller open gear, a lower roller sliding bearing, etc. The lower roller is the active roller, which is driven by the main transmission output gear, the lower roller open gear, and the transmission torque of the lower roller.

The material of the lower roller is 45 # steel forging, which has undergone quenching and tempering treatment HB245-285; The material of the lower roller gear is 45 # steel, which has undergone quenching and tempering treatment HB245-285, and the tooth surface has undergone high-frequency quenching treatment HRC45-50.

The lower roller sliding bearing is made of SF-2 composite material.

3-3. Main transmission device

The main transmission device consists of a main motor, gear reducer, brake, etc.

3-4. Overturning device

The tipping device consists of a tipping frame, a locking pin, etc.

3-5. Left and right racks, base

The left and right side frames and bases are welded steel plates and undergo vibration aging treatment after welding.

4、 Electrical control system

The equipment application control system consists of an electrical control cabinet and an operation console. Power supply 380V/50HZ. The main switch has short-circuit protection and overload protection functions for the main motor. The forward and reverse rotation of the motor system is controlled by an AC contactor; Strong current control components include circuit breakers, fuses, contactors, thermal relays, buttons, switches, indicator lights, etc.

In order to protect the safety of operation and equipment, limit switches are installed at the terminals of each moving part of the equipment, and emergency stop buttons are installed on the fixed side rack.

The control cabinet is equipped with all control buttons, indicator lights, etc. for completing the product rolling process, in order to control the operation and various working states of the whole machine.