The application of PLC in cap dust removal machine

This paper introduces the application of PLC in cap dust removal machine. New product B1 / B1z series host is the host FBs series of compact edition, inherited the FBs series host the advantages of stable performance, strong anti-interference and has the characteristics of simple structure, high cost performance. 1 a project profile. Introduction to industry cap production to twist on the final product, the process is easy to stain dust and other sundry, this equipment is to produce wine cover using purge, vacuum, in addition to electrostatic remove wine cover inside and outside surface dirt of special equipment. Figure 1 - 1 equipment design 1. 2 customer requirements to the first area cleaning area, when the bottle cap in the bottom of the high pressure ( 4. 6 kv) Electrostatic gun, produce a lot of positive and negative ions and positive and negative ions and the cap inside and outside the wall, under the high pressure air purge to achieve the purposes of dust removal, at the same time, fixed gun to purge cap outer wall. When cap into the second cleaning area, moving rotary gun embedded cap purge inner core, at the same time above vibration, vibration device for cap pat pat vibration and motion airflow can make adsorption on the surface of the dust particles or fall off, so as to achieve the best cleaning purpose, embedded cap will blow wash times and time can be set in the computer. When the cap into the third cleaning area, fixed gun to high-pressure gas washing bottle caps, both inside and outside wall, at the same time, serpentine electrostatic gun to cap the outer wall electrostatic dust removal. 1. 3 solution considering the equipment control process requirement of PLC points less, and for the digital quantity control signal, so choose the B1z host series of new products. Man-machine interface to choose UniCon 7 inch human-machine interface. This configuration to meet the product function, under the premise of not reduce product reliability, the biggest save the cost. 1. 4 the solution context new B1 / B1z series host is the host FBs series compact edition, still use FATEK SoC as the core system, has the advantages of simple structure, stable performance, strong anti-interference, low price advantage. UniCon070S series man-machine bring two communications, support common controller brand communication protocol. Two control system design 2. 1 the hardware configuration of the device control core adopted B1z - 20 mr2 - AC host, the host has 12 input, output, at 8 - take a RS 232 communication port. Adopted UniCon070S series of human-machine interface, the man-machine interface of 7 inch 800 x 480 resolution LCD panel, with two communications, support the common controller communication protocol. 2. 2 control process design cap feed, is the first process of dust removal machine automatic well-organized cap to dust removal location. The second process for electrostatic dust removal, installed in the bottom of the high voltage electrostatic gun to produce a large number of positive and negative ions and positive and negative ions and the cap inside and outside the wall, under the high pressure air purge to achieve the purposes of dust removal, at the same time, fixed gun to purge cap outer wall. The third process for vibration shaker, vibrating plate to vibration of bottle caps, clap-frequency vibration and motion airflow can make adsorption on the surface of the dust particles or fall off, so as to achieve the best cleaning purpose, embedded cap will purge number and time can be set in the computer. The fourth working procedure for high pressure gas washing, fixed gun to high-pressure gas washing bottle caps, both inside and outside wall, at the same time, serpentine electrostatic gun to cap the outer wall electrostatic dust removal. Figure 2 - 2 caps dust removal process 2. 3 the software design 2. 3. Figure 1 PLC program design is of high pressure gas washing PLC controller program. M100 approximately starts after the cleaning process, the first device automatic feeding, feeding in place, high pressure air gun, high-pressure gas washing. High pressure gas washing frequency set by the user, gas washing times have not reached set value, high pressure air gun reciprocating hoist, air wash. Gas washing times reached set value, high pressure air gun down, stop the gas washing, feeding again. Figure 2 - 3 high pressure gas washing procedures in addition to the traditional way of programming implementation through the above process control, PLC controller also provides special instructions step ladder diagram. The step ladder diagram instructions specific to the order of the mechanical action process control, step ladder diagram is a step point ( 步骤) Of the smallest unit. A step into the point of mechanical parts in a step, every step in the sequence is output, or the whole sequence control process, the whole machine is one step one point logic of series or parallel, the step by step by step implementation of the environment, make the person be clear at a glance, the workings of the mechanical on the design, operation and maintenance are convenient. 2. 3. 2 man-machine interface program design as shown in the figure below for operating interface, the picture including alarm, a data set display, motion instructions, hand automatic control part. Alarm part can detect dust removal machine high pressure alarm, low pressure alarm and cap the inverted and missing alarm, etc. Data set the display part is used to set high pressure dust removal, the cumulative number of dust. Motion instructions part is used to display working state of each station and automatic state, etc. Hand automatic control part for controlling suction machine, vibration plate, electrostatic dust removal machine, etc. Figure 2 - Three equipment debugging 3 4 operating picture. 1 cap anomaly detection in dust removal process, which requires cap down placed in the bottle mouth, bottle cap as shown in the figure below. If the cap is not placed or inverted, will lead to abnormal such as dusting gun damage. Through the photoelectric detection, to determine whether a cap placed and whether upside down can effectively avoid the happening of the fault. When a failure is detected, the man-machine interface will display cap alarm, dust removal after stop machine
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