Servo four-roller plate rolling machine is a processing equipment which control system utilizes the characteristics of servo motor’s high precision and fast response to drive four working rollers to bend the plate into various shapes according to the program, and can form different shapes of parts such as cylinder parts and conical parts, etc., which is a very important kind of processing equipment.
Full-automatic CNC 4-roller plate bending machine with advanced and reliable technical structure, with sufficient rigidity, work rollers and other key parts of reasonable selection of materials, precision manufacturing, excellent performance, suitable for long-term continuous processing, stable and reliable operation control, easy to operate, is a high-precision, high-efficiency rolled sheet metal of the unique advanced equipment.
General overview of machinery:
The four-roller plate rolling machine is a full servo automatic type, which is used to roll steel plates into cylindrical, square, oval and D shapes at room temperature; it adopts computer program control system.
Main technical parameters:
W12CNC-8×600 servo-controlled four-roller plate rolling machine is introduced in detail:
CNC servo four-roller plate rolling machine equipment technology structure is advanced and reliable, with sufficient rigidity, the work of the roller and other key parts of the material selection is reasonable, precision manufacturing, excellent performance, accuracy retention period is long, suitable for long-term continuous processing, stable and reliable operation control, easy to operate, it is a high-precision, high-efficiency rolled sheet metal with the unique advanced equipment.
The full-automatic CNC plate rolling machine system is easy to operate, the operating system is highly stable and durable, suitable for use in a variety of working conditions, the whole set of control system includes:
Detection unit: servo-driven closed-loop control;
Siemens PLC for industrial use;
Industrial Specialized PC:
Input device: PC keyboard;
Control unit: Full servo motion unit.
General overview of full-servo four-roller plate rolling machine：
This machine belongs to the full servo type four-roller plate rolling machine, which is used to roll the steel plate into cylindrical shape at room temperature. It can be realized according to the shape of product drawings; the upper roller can be fixed; the lower roller and both side rollers can be moved up and down. Upper roller. The lower roller is the main driving roller, providing torque for plate rolling through its rotation; the two side rollers are passive rollers. Pre-bending is realized by the upper and lower rollers clamping the sheet and the side rollers lifting and lowering to deform the sheet. The upper roll is driven by servo motor planetary reducer when rolling round. Adopt computer program control system.
Description of the main technical parameters:
The large working capacity of the coiler is by the large coil thickness (pre-bending thickness), the large coil width, rolled sheet material and large specifications when the small drum diameter of the four main parameters to determine the work of the four parameters of the variables between each other in the work of the conversion relationship, that is, the machine’s working capacity of the conversion relationship in the randomized instruction manuals provided to the user, in order to facilitate the user’s more reasonable use of the equipment.
Structural characteristics of the machine:
Structural overview：
This machine is a four-roller plate rolling machine, the upper roller is the active roller, the lower roller and the side roller are the driven rollers, the upper roller position is fixed, the lower roller and the side rollers can be moved up and down, the rotation of the side rollers is driven by the friction between the steel plate and the rollers, the lower rollers and the side rollers are driven by the servomotor speed reducer at the ends of the parallel connection to drive the precision worm gear screw to make its lifting movement, the upper roller unloading end of the flip bracket, reset, relying on electro-hydraulic pusher for the flip. Each roller bearing body and precision screw are installed in the frame at the left and right ends.
The four-roller plate rolling machine and symmetrical three-roller plate rolling machine, it can not help other equipment molds, direct pre-bending plate end, and the remaining straight edge is smaller, and asymmetric three-roller plate rolling machine, it can not make the plate turn around, and rolled into a workpiece, which not only improves the efficiency, to ensure the quality of the workpiece, and the process is simple, easy to operate. This four-roller plate rolling machine consists of working rollers (one upper roller, one lower roller, two side rollers), frame (one each of high frame, short frame, and overturning support), a base, two sets of servo motor reducer drive, six lifting and lowering precision worm-gear reducers (four side rollers, two lower rollers), unloading device, and a set of CNC electronic control system.
Main drive (work roller rotation)：
The upper work roller of this machine is the active roller, which is driven to rotate by the servo motor transmission device (including precision planetary reducer, servo motor, etc.), and the side roller is the follower roller (the side roller seat is a rolling bearing seat), which is driven to rotate by the friction between the work roller and the steel plate, and the roller rotates accurately with the digital setup for positioning, and the position of the upper roller is fixed, and the unloading is positioned by the auxiliary support.
Subtransmission:
The lower roller lift is driven by servo motor reducer to lift the precision worm gear screw, and the lifting of the two side rollers is controlled by two servo motor reducers respectively, with the synchronization accuracy of ±0.1. The lifting of the lower roller in place is controlled by the pressure, and the lifting and displacement of the lower and side rollers are all controlled by the CNC using the digital screen display, which achieves a higher synchronization accuracy. All the manipulation adopts electrical centralized control, internal PLC (programmable controller), easy to operate, the screen digital display is eye-catching and intuitive.The overturning and resetting of the inverted head of the upper roller is executed by the electric actuator, which makes the unloading more convenient.
Main components：
Work rollers:
Work roll is the main key working parts of the machine, work roll material for 42CrMo, forging, rough machining after tempering treatment, hardness HB240 ~ 280, quenching treatment HRC50 ~ 55. work roll machining process for: forging → post forging heat treatment → roughing → tempering → finishing → surface quenching treatment → fine grinding, work roll after strict inspection, and provide users with material inspection reports, heat treatment inspection reports, flaw detection inspection reports, etc.! After strict inspection, we will provide users with material inspection report, heat treatment inspection report and flaw detection inspection report!
Racks:
The frame is divided into high and low frame each one, for the main body of the coiler, using steel plate welding to remove the welding stress finishing and become, the middle part of the frame is processed with the lower roller bearing lifting slide, the frame is equipped with side roller bearing seat on both sides, and the side roller bearing seat is hinged with the side roller screw, for lifting and moving. The frame, together with the cylinder and work rollers, is mounted on an integral welded base.The whole welded structure is adopted, and the weld seam is strictly inspected and annealed by hot aging after welding to eliminate the internal stress. The machine frame is the main stress member of the machine, and is designed with sufficient strength and rigidity, and at the same time is further strengthened according to the process characteristics of your factory to ensure that the rolled plate needs. The welded structure of the frame is processed by CNC machine tools to ensure its accuracy.Machining process of the frame: steel plate shot blasting treatment → CNC cutting material → each plate-like parts processing beveling → welding → overall annealing → CNC boring process.
Unloading device:
It is mounted on the drive side of the upper roller and consists of a lower pulling system for balancing the upper roller during unloading.
Tipping mechanism:
It is mounted on the side of the reversing head for reversing and restoring the reversing head, which is executed by the reversing head motor.
Channel steel base：
It is processed by welding channel steel to steel plate and removing welding stress. The frame, reducer, etc. are mounted on it, thus forming a whole.
Electrical systems:
It adopts 380V 50HZ three-phase AC power supply, the main circuit adopts three-phase AC 380V, CNC control input circuit adopts 24V DC, and control output circuit adopts 220V AC. The working roller rotates, the side roller, the lower roller, and the inverted head make lifting and lowering movements, and it is equipped with short-circuit and overheat protection. This machine control electrical appliances (including PLC) are all installed in a manipulation box, using digital screen display, eye-catching and intuitive, easy to operate.
Discharge device:
It consists of rack body, guide rail, moving device, lifting system and pushing frame, with automatic discharging function, which is used to push out the rolled workpiece out of the coiler after the inverted head is overturned. The motor adopts servo motor of Huichuan or Delta, the reducer adopts Taiwan Fenghua or Feibao reducer, the rack and pinion linear guideway adopts Shangyin, the upper joist type discharging is adopted, the range of supporting cylinder is 350~1000mm, the discharging stroke is 1800mm.
Micro-control system:This automatic micro-control system is a special control system designed and manufactured by Tai’an Huaru Forging and Pressing Industrial Control Technology Co., Ltd. to develop W12K-6×1000 four-roller plate rolling machine. Including the main electrical cabinet, microcomputer cabinet and other hardware parts and microcomputer special control software.
Man-machine dialog programmable function:
The database can record the data of plate rolling process and modify and optimize it according to the need, when mass production of the same specification model, the data can be accessed to realize the automatic control of plate rolling and forming. Failure self-diagnosis display and intelligent judgment function of operation error, real-time display of absolute position of both ends of the front side roller, real-time display of absolute position of both ends of the rear side roller, real-time display of absolute position of both ends of the lower roller, real-time display of the amount of inclination of the front and rear side rollers and the lower rollers, and soft and hard limit protection function of each moving part;
Power failure memory function:That is, when the operation of the middle of a sudden power failure or the end of the roll plate machine power failure, due to some reason the upper and lower roller position changes, in the re-energized, the PLC system automatically tracking, accurate and error-free display of the actual position.
Safety and protection features:In the event of an unforeseen situation, the operator can easily and promptly shut down the equipment and system to ensure the safety of the equipment and the lives of personnel.