Oral liquid filling automatic weighing system based on PLC

Oral liquid filling automatic weighing system based on PLC newmaker welcome to e exhibition hall 1 filler/powder packaging machinery exhibition hall liquid automatic packaging machine, filling machine, screw cap machine, ton bag packaging machine, particles automatic packaging machine,. 。 。 Oral liquid weighing filling process is an important link in production of oral liquid, filling quantity of how many directly affects the quality of the products. The original oral liquid production processes are mostly artificial filling, sampling weighing way. Due to the whole process are completed by the artificial, workers labor intensity, low efficiency, and influenced by artificial factors, oral liquid dosage is differ from time to tome, leak, etc. In view of the above factors, we design the automatic control system, used for automatic weighing and filling. 的边后卫, 1 lc weighing module for 16-bit resolution load module, high reliability, high price advantage at the same time, suitable for large equipment and equipment or modification. Implementation principle of weighing system from production line entrance into the empty bottles, when photoelectric switch 4 induction to the empty bottle, rotary motor startup drive wheel, wheel each roll a workstation, photoelectric switch 3 on time, when the wheel turns continuously two workstation and photovoltaic 1 and 2 on ( Said free station 1 and station 2 bottles) , the motor stops. System testing after the empty bottle weight, add liquid drops head start charging, when to set weight, add liquid to immediately stop, charging head back, wheel to turn, the bottle filled with liquid flow from export, an empty bottle from entry into circulation work. Figure 1. System schematic diagram of the PLC function requirements and specifications according to the working principle of the weighing system needs an input point X and X dots. 2 channel weighing sensor signal input. Distribution of input and output points are shown in table: besides the weighing module, the control part of the weighing system control is relatively simple, less application. According to this requirement, we chose a FBS - 20 ma programmable controller. The programmable controller is low price, high reliability, small volume, very suitable for small relay control occasions, with 20 I/O points and as many as 20 k program storage capacity. As long as can meet the control requirements in simple programming. The FBS - weighing module 1 RMB lc load module. 的边后卫, 1 lc is FATEK FBs series PLC controller of the members of the analog input module. Can be used to measure the load yuan ( loadCell) Have a weak signal. This module will measure signals to 16 with positive and negative Numbers. In order to be with in the field of signal noise filtering, this module provides the function of the average sampling signal at the same time. The realization of the function of weighing 1. The external wiring FBS - weighing module 1 lc decomposition capacity of 16 bits, conversion rate of 5/10/20/25 optional. FIG. 2 for FBS Lc wiring diagram: 1 in figure 2. 的边后卫, 1 lc external wiring diagram 2. Program design of the weighing function when the wheel will empty bottles for location after the no. 1, 2, photoelectric switch 1, 2, induction to the empty bottles, the weighing sensor, the weight of the empty bottle after weighing module transmitted to PLC controller, PLC controller records at this time of the empty bottle weight, calculating the charging quantity of set with empty bottles and for the current value of the weight, plus liquid head and liquid to stop charging immediately after the current value. To ensure that under the condition of the empty bottle weight is different with the same fluid volume. As shown in figure 3, figure 3 weighing program design thinking conclusion adopt this system reduces the labor intensity of workers, improve the production efficiency, increase the weighing accuracy, guarantee the quality of oral liquid products. The technology can be applied in medicine, cosmetics production line automatic control and other need weight and higher production line to dose requirement, has good economic benefit.
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