CN107601088A - A kind of pneumatic dust-free loader and its PLC control system - Google Patents
A kind of pneumatic dust-free loader and its PLC control system Download PDFInfo
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- CN107601088A CN107601088A CN201610540525.3A CN201610540525A CN107601088A CN 107601088 A CN107601088 A CN 107601088A CN 201610540525 A CN201610540525 A CN 201610540525A CN 107601088 A CN107601088 A CN 107601088A
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Abstract
A kind of pneumatic dust-free loader and its PLC control system, mainly include entrucking dust arrester installation, pneumatic system and electric control system composition.Pass through the effect of these parts so that the dust during entrucking can be efficiently absorbed, and reach the function of preventing that dust from overflowing.The control system is high using the pneumatic dust-free loader automaticity of PLC controls, safe and reliable, had both simplified operation program, loading time has also been greatly shortened.
Description
Art
The present invention relates to a kind of pneumatic dust-free loader and its PLC control system, suitable for mechanical field.
Background technology
Dust-free loader is mainly used in the open type and packaging of the particles such as clinker, coke, pitch coke and granular material
Box entrucking, the dust during handling material can be greatly reduced, prevent pollution of the dust to environment.PLC has logic control
Function is strong, programming is convenient, reliability is high and the characteristics of strong antijamming capability.PLC controls are applied to pneumatic dust-free loader, no
The automation of dust-free loader charging can be only realized, improves feed rate, the labor intensity of worker can also be substantially reduced.
The content of the invention
The present invention proposes a kind of pneumatic dust-free loader and its PLC control system, the pneumatic dustless dress controlled using PLC
Vehicle device automaticity is high, safe and reliable, had both simplified operation program, loading time has also been greatly shortened.
The technical solution adopted in the present invention is：
The pneumatic dust-free loader system mainly includes entrucking dust arrester installation, pneumatic system and electric control system composition.It is logical
Cross the effect of these parts so that the dust during entrucking can be efficiently absorbed, and reach the function of preventing that dust from overflowing.
The pneumatic system is by controlling two-way pneumatic slide valve and Pneumatic butterfly valve, so as to realize the opening and closing of material and gather dust
The opening and closing of air quantity.After three-phase 380V voltages access electric control box, two-way is divided into after power switch and air switch, all the way three
Mutually enter frequency converter, another way two-phase enters transformer.Two-phase voltage is divided into three tunnels again after transformation, and wherein two-way is 220V,
It is 24 V direct currents all the way.220V enters PLC, power supplys of the another way 220V as motor brake, 24V dc source conducts all the way
The power supply (the direct current 24V power supplys that the power utilization PLC of PLC input points is carried) of PLC output points.In addition, PLC by frequency converter come
The operation of controlled motor.
The control panel of the PLC control system, mainly include system startup and stop button, charging start and stopping is pressed
Button, entrucking head raising and lowering button, open-top car and container loading time settings button entrucking height settings button, the valve that gathers dust are opened
Pass and various malfunction coefficient lamps, etc..
Writing for the PLC control program can realize collection using S7-200PLC programming softwares, PLC control program
Vanning and two kinds of entrucking patterns of open-top car.The height for being identified by calculating entrucking head and declining from upper limit position of two kinds of entrucking patterns
Come what is realized.Pulse coder is housed in the rotating shaft of entrucking head winding plant, when entrucking head declines from upper limit position, PLC
High-speed counter starts counting up the umber of pulse that pulse coder is sent, and umber of pulse is multiplied by between two pulses under corresponding entrucking head
Drop distance can be obtained by the total height of entrucking head decline.
The beneficial effects of the invention are as follows：The control system is high using the pneumatic dust-free loader automaticity of PLC controls,
It is safe and reliable, operation program had both been simplified, loading time has also been greatly shortened.
Brief description of the drawings
Fig. 1 is the pneumatic system schematic diagram of the present invention.
Fig. 2 is the electric control system schematic diagram of the present invention.
Fig. 3 is the PLC control main program flow charts of the present invention.
Fig. 4 is the open-top car pattern entrucking PLC control subroutine flow charts of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2, pneumatic system is by controlling two-way pneumatic slide valve and Pneumatic butterfly valve, so as to realize the opening and closing of material
With the opening and closing for the air quantity that gathers dust.After three-phase 380V voltages access electric control box, it is divided into two-way after power switch and air switch,
Three-phase enters frequency converter all the way, and another way two-phase enters transformer.Two-phase voltage is divided into three tunnels again after transformation, and wherein two-way is
220V, it is all the way 24 V direct currents.220V enters PLC, power supplys of the another way 220V as motor brake, 24V dc sources all the way
Power supply (the direct current 24V power supplys that the power utilization PLC of PLC input points is carried) as PLC output points.In addition, PLC passes through frequency conversion
Device carrys out the operation of controlled motor.
The control panel of PLC control system, mainly include system start and stop button, charging start and stop button,
Entrucking head raising and lowering button, open-top car and container loading time settings button entrucking height settings button, gather dust threshold switch
And various malfunction coefficient lamps, etc..
Writing for PLC control program can realize container using S7-200PLC programming softwares, PLC control program
With two kinds of entrucking patterns of open-top car.The height that entrucking head declines from upper limit position that is identified by calculating of two kinds of entrucking patterns is come in fact
Existing.Pulse coder is housed in the rotating shaft of entrucking head winding plant, when entrucking head declines from upper limit position, PLC is at a high speed
Counter starts counting up the umber of pulse that pulse coder is sent, umber of pulse be multiplied by corresponding entrucking head between two pulses decline away from
From the total height that can be obtained by the decline of entrucking head.
According to practical experience, entrucking head falling head can be considered packaging box mode when being less than 1m, can be considered us during more than lm
Car pattern.After the vehicle that feeds reaches entrucking position, system start button of the operating personnel first on push panel, then press
Drop of staying button declines charging head, when charging head is put into suitable position, unclamps and declines button, and entrucking head stops declining,
PLC control system starts to identify entrucking pattern.
As Fig. 3, container entrucking pattern PLC controls are relatively simple.When PLc control systems differentiate current entrucking for collection
During entrucking pattern of casing, charge time being set by operating personnel and opens the switch that gathers dust, PLC program controls valve opening of gathering dust,
Operating personnel are pressed after charging drives button, and delay 3s Pneumatic gate valves, which are opened, to be started to feed.When the charge time for reaching setting
Afterwards, Pneumatic gate valve is closed, entrucking head automatic lifting to upper limit, and the butterfly valve that then gathers dust is closed, and container entrucking is completed.
When it is open-top car entrucking pattern that PLC control system, which differentiates current entrucking, entrucking height and dress are set by operating personnel
The material head interval lifting time, (in whole entrucking height, entrucking head was divided into multiple lifting, between the time between front and rear lifting twice
Asked when interval lifting is referred to as) and open and gather dust switch.PLC program controls valve opening of gathering dust, and presses charging in operating personnel and opens
After button, delay 3s Pneumatic gate valves, which are opened, to be started to feed.
Such as Fig. 4, what open-top car entrucking pattern PLC controls will be complicated compared with container entrucking pattern is more, and it can both have been realized manually
Intervene charging process, automatic loading can also be realized.In charging process, PLC control system will detect charging stop button signal,
Charging head interval lifts the time to signal and charging head rising button signal.
Claims (5)
1. a kind of pneumatic dust-free loader and its PLC control system, it is characterized in that：The pneumatic dust-free loader system is mainly wrapped
Entrucking dust arrester installation, pneumatic system and electric control system composition are included, passes through the effect of these parts so that during entrucking
Dust can be efficiently absorbed, reach prevent dust overflow function.
2. a kind of pneumatic dust-free loader according to claim 1 and its PLC control system, it is characterized in that：It is described pneumatic
System is by controlling two-way pneumatic slide valve and Pneumatic butterfly valve, so as to realize the opening and closing of material and the opening and closing for the air quantity that gathers dust, three-phase
After 380V voltages access electric control box, two-way is divided into after power switch and air switch, three-phase enters frequency converter all the way, separately
Two-phase enters transformer all the way.
3. a kind of pneumatic dust-free loader according to claim 1 and its PLC control system, it is characterized in that：The PLC controls
The control panel of system processed, mainly include system start and stop button, charging start and stop button, entrucking head rise and under
Drop button, open-top car and container loading time settings button entrucking height settings button, gather dust threshold switch and various failures show
Show lamp.
4. a kind of pneumatic dust-free loader according to claim 1 and its PLC control system, it is characterized in that：The PLC controls
Processing procedure sequence is write using S7-200PLC programming softwares, and PLC control program can realize the two kinds of entruckings of container and open-top car
Pattern, two kinds of entrucking patterns are identified by calculating height that entrucking head declines from upper limit position to realize.
5. a kind of pneumatic dust-free loader according to claim 1 and its PLC control system, it is characterized in that：In entrucking head
Pulse coder is housed, when entrucking head declines from upper limit position, PLC high-speed counters start counting up in the rotating shaft of winding plant
The umber of pulse that pulse coder is sent, corresponding entrucking head dropping distance can be obtained by dress between umber of pulse is multiplied by two pulses
The total height that headstock declines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610540525.3A CN107601088A (en) | 2016-07-11 | 2016-07-11 | A kind of pneumatic dust-free loader and its PLC control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610540525.3A CN107601088A (en) | 2016-07-11 | 2016-07-11 | A kind of pneumatic dust-free loader and its PLC control system |
Publications (1)
| Publication Number | Publication Date |
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| CN107601088A true CN107601088A (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610540525.3A Pending CN107601088A (en) | 2016-07-11 | 2016-07-11 | A kind of pneumatic dust-free loader and its PLC control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015574A (en) * | 2019-04-08 | 2019-07-16 | 云南云铝涌鑫铝业有限公司 | Discharging device and powder handling facilities |
-
2016
- 2016-07-11 CN CN201610540525.3A patent/CN107601088A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015574A (en) * | 2019-04-08 | 2019-07-16 | 云南云铝涌鑫铝业有限公司 | Discharging device and powder handling facilities |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180119 |