The application of PLC in the duct production line

PLC application in the duct production line newmaker welcome to e hall hall 10 forging/stamping/rolling equipment exhibition hall press, pneumatic hammer, forging machine, single column hydraulic press, four-column hydraulic press,. 。 。 The introduction with the large-scale application of central air conditioning, used for pipeline were also surging demand for hvac. The so-called duct, is used for air delivery and distribution of piping system, widely used in supermarkets, shopping malls, exhibition, theaters and other places of public business. Duct production line is composed of rack, leveling, embossing machine, blunt pointed mouth and blunt square opening Angle of hydraulic cutting machine, hydraulic shearing machine, hydraulic folding machine. System is introduced to the requirement of process is as follows: open the oil pump is the device's boot order total valve and pump, feeding, and then through the servo motor control of the steel roller leveling embossing, hydraulic shear Angle Fang Mo shear Angle, hydraulic folding folding machine, hydraulic cutting machine cut the molding of the duct. Its action requirements are: oil pump start to pump valve is always open, generous die set origin - servo start - cutting burrs to play small square hole, bending and shear. The hardware system: 3. 1 system: this system by researching China l industrial computer a, 610 upper unit configuration software with kunlun state, PLC host FBs - 24 MCT, a digital quantity extension module FBs - 8 ey a, yaskawa servo drive and servo motor. As shown in the figure below: 3. 2 description of PLC positioning control: FBs series PLC in FBs - NC positioning control integration Within the SoC chip of PLC controller, PLC + NC control, sharing resources and dispense the data exchange between the two systems. Single biggest 4 output shaft, the highest frequency of 200 KHZ ( MC) Or 920 KHz ( MN) And can make more between the axis line to fill and dynamic tracking. The system software design. 4. 1 technical difficulties: each duct to bend 3 times, and easy mold for 2 times, small Fang Mo 3 times, shear 1 at a time, a total of nine action, and every action is executed, the servo to stop, after the completion of the action, the servo to start automatically, the distance of the servo drive each is different, according to set the size of the duct to determine every step walk distance and stop after action, according to the calculation, a small Fang Mo crossing and bending is certain rule, different tube cross way has different size, such as doing small pipe, three small Fang Mo played well, bending action not once. Some pipes are played two Fang Mo, following a curved, again make a small Fang Mo, fold twice again. 4. 2 design idea: to make a complete duct to mechanical action nine times, servo corresponding automatic start-stop eight times, each time the running distance according to the setting of the different width and height of the pipe. But the number of mechanical motion is fixed, we can calculate the servo walked by the total distance, it is divided into eight segments, after calculation, a small Fang Mo distance from the origin to start have 3, by setting different, can through the formula to calculate three distance, corresponding to the three distance is to make small Fang Mo action. Through this method, and find out the nine action corresponding to the length of the deciding their corresponding actions. 4. Operation of the project: can be seen from the system operation situation, duct production accuracy and stability is improved obviously. The maximum working speed for 10 m/min. Length error of plus or minus 0. 5mm。 The machine can produce 0. More than 25 m ', ' ' 'and' form of duct, the amount can be set freely. In the case of automatic cutting, arbitrary length of complementary makings, as set by the number of production, the wind machine automatically stops. Six. Conclusion: this system adopts the positioning control function of PLC, enable customers to reduce the new product development costs, shorten the development cycle. The stable operation of the system, not only reduce the labor intensity of the field operations staff, and improve the production efficiency, has the high practical and promotional value.
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