1. Process description According to the application requirements, this equipment adopts the process requirements of the ceramic plunger type canning mechanism:
1. By controlling the length of the servo motor control screw to pull the plunger pump (stainless steel, ceramic) to fill the liquid and accurately control the dose of cans
2. The conveyor chain is controlled by a servo motor, which ensures the stability of the running speed and enables more precise operation.
3. Requirements canning accuracy to national tolerance
4. The equipment can automatically count, cumulative canned quantity
5. No bottle stop irrigation.
6.
2, system composition
configuration list
PLC (CPU) DVP28SV11T DELTA 1
PLC (Extension Module) DVP16SP11T DELTA 6
HMI (Human-Machine Interface) PWS6A00T-P HITECH 1
Encoder ES3-25CB6942 DELTA 1
Servo System ASD-A0421-AB DELTA 13
ECMA-C30604ES DELTA 13
ASD-A1021-AB DELTA 1
ECMA-E31310ES DELTA 1
Linear Module KK8620P-340A-F0 HIWIN 1
3, system control block diagram and description
a brief introdction:
1. This system fully meets the needs of customers, but also broke the traditional way of mechanical cam follow, great advantages, the traditional way of mechanical cam follow, the output is limited. The general output is less than 300 bottles, the speed can not be increased once the machinery is improved. Resonance will occur. Due to mechanical resonance, it will affect the accuracy of the load. Servo-following has greatly improved the traditional way, following the smooth running, and the output has also greatly increased more than 40% over the output following the mechanical cam.
2. This program uses a full set of Delta AB series servo + Delta DVP-28SVIIT PLC This system is widely used in ceramic, stainless steel, plunger filling machine, piston filling machine control accuracy is very high, set the accuracy of adjustment One in a minute.
Electrical System Profile:
1. System design with multiple slaves, parameter setting and fault readout
2. This system includes 14 servos including 0.4KW (13 ASD-A0421-AB), 1.0KW (1 ASD-A1021-AB), inverter 1.5KW (1 set of VFD-022B23A), PLC host (1 DVP-28SV11T) O/I Extension (6DVP-16SP11T)
3. Filling servo work mode is internal position mode, Delta AB series servo built-in function is rich, this system is applied to the built-in home point, internal position
4. The spindle, follower, and lift servos work in external command mode. The three servos require a coordinated work mode. One model (ES3-25CB6942) Delta 2500PPR encoder is installed on the spindle, and the encoder uses AB phase pulses. Access to the PLC, in the PLC to do the 4 times frequency processing, so to improve the control accuracy, good control to follow and lift, calculate the coefficients of the speed and angle difference within the PLC, when set to a different speed, the internal will automatically Coordinate follow, start and end angles of lift. This accurately aligns the center of the bottle mouth to prevent the drug from splashing on the bottle wall. There is also a follow-up angle deviation correction. Due to the long-term wear of the machine leading to inaccurate follow-up, simply set this parameter to eliminate this fault. There are also some humanized features........
4, equipment overview:
Plunger filling machines have strict control standards and specifications in the country of medicines for medicines and pharmaceuticals. Because of the safety of life, accuracy is very important. For pharmaceutical manufacturers, on the one hand, they must strictly implement the national regulations on filling drugs, and on the other hand pay more attention to production efficiency. In short, they must not only achieve accurate national standards, but also increase production efficiency as much as possible so as to maximize the efficiency of enterprises. .
5, application summary:
Through rigorous testing at a well-known drug company, we proved that our system solution was very successful, greatly increased the demand for production, and improved the stability of machinery and the simplification of commissioning. Canned test results are fully controlled within national standards. Make full use of Delta servo and PLC advantages:
1. There are many kinds of positioning instructions inside the PLC that are easy for you to call and can be used to write precise motion programs.
2. Use the PLC's COM2 communication port to monitor and read out the speed of the inverter in real time.
3. The HMI and filling servos are linked in the standard modbus communication mode. We use RS485 mode communication for this system. This servo has RS232/RS485/RS422 interface
4. This system has been manufactured by a famous pharmaceutical machine manufacturer in China, including (10-pin, 8-pin, 6-pin) and independent follow-up configuration of other models.