CN109023199A - Full-automatic heat zinc-coated wire coating online detection and control system - Google Patents
Full-automatic heat zinc-coated wire coating online detection and control system Download PDFInfo
- Publication number
- CN109023199A CN109023199A CN201810892828.0A CN201810892828A CN109023199A CN 109023199 A CN109023199 A CN 109023199A CN 201810892828 A CN201810892828 A CN 201810892828A CN 109023199 A CN109023199 A CN 109023199A
- Authority
- CN
- China
- Prior art keywords
- thickness
- ray
- nitrogen
- ray tube
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The present invention provides a kind of full-automatic heat zinc-coated wire coating online detection and control systems.The technical solution develops a kind of sensor for steel wire coating thickness by medium of X-ray first, can carry out on-line checking to plating layer data in steel wire transmission process；Collected plating layer data is transmitted to Thickness Analysis unit by sensor, thickness information is calculated and transmits it to PLC module, PLC module compares thickness information and target value, and control is executed to digital nitrogen ratios valve opening for foundation with comparing result, to adjust the purging effort of nitrogen sweep gas knife, and then realize the control to steel wire surface thickness of coating.With the application of the invention, the real-time detection and automatic control to hot-dip galvanizing steel wire coating can be realized, manual operation is not only eliminated, but also there is higher control precision；The present invention can be such that thickness of coating controls within the scope of target value ± 15 gram always, ensure that product qualification rate, reduce production cost, have significant economic benefit.
Description
Technical field
The present invention relates to coating on-line checking and control technology fields, and in particular to a kind of full-automatic heat zinc-coated wire coating
Online detection and control system.
Background technique
Hot-dip galvanizing steel wire is a kind of metal wire for obtaining medium carbon steel or high-carbon steel through pickling, phosphatization, wire drawing, then hot galvanizing
Material.Wherein the quality of coating is used for performance with great influence, therefore real it is necessary to carry out to coating in zincincation
When detect and control.
In the prior art, there are four types of modes for the coating control of hot-dip galvanizing steel wire production line: 1, carbon foam, which is smeared, wipes；2, asbestos briquetting
It smears and wipes；3, nitrogen purging, which is smeared, wipes；4, electromagnetism, which is smeared, wipes.These four, which are smeared the mode of wiping and are all made of manually mode, controls steel wire coating
Then system send laboratory using the method for chemistry to sample coating weight by carrying out selective examination sampling to the entire volume steel wire of production
It is detected, testing result is compared with target value, is then adjusted accordingly, and then increase or decrease the thickness of zinc layers.
This method is all completed by manually, can not achieve online detection control, the steel wire coating thickness produced frequent occurrence is not
Qualification is not achieved technique and requires to cause manpower and material it is necessary to return plating again if thickness of coating is lower than desired target value
Waste, if thickness of coating is far longer than target value, just causes to waste, does not meet energy-saving production requirement to metallic zinc.?
Production cost is substantially increased, economic benefit is reduced.
Summary of the invention
The present invention is directed to be directed to the technological deficiency of the prior art, a kind of full-automatic heat zinc-coated wire coating on-line checking is provided
Control system, to solve to detect and control the technical issues of needs are completed by manual operation to coating in the prior art.
Another technical problem to be solved by the present invention is that how to promote the precision to steel wire coating Thickness sensitivity.
The invention solves another technical problem be how to come according to testing result to thickness of coating carry out in real time from
Dynamic adjustment.
To realize the above technical purpose, the invention adopts the following technical scheme:
Full-automatic heat zinc-coated wire coating online detection and control system, including thickness of coating sensor, Thickness Analysis unit,
PLC module, digital type proportion valve, nitrogen sweep gas knife；Wherein, the thickness of coating sensor includes sheet lead shell, bracket, set
Pipe, the first X-ray detector, the second X-ray detector, the first cold cathode X-ray tube, the second cold cathode X-ray tube, high-voltage electricity
Source, power supply line, detector data line, probe power data/address bus, wherein bracket is located at the inside of sheet lead shell, the set
Pipe, the first X-ray detector, the second X-ray detector, the first cold cathode X-ray tube, the second cold cathode X-ray tube, high-voltage electricity
Source is respectively fixedly connected on bracket, and through there is steel wire in described sleeve pipe, the X-ray that the first cold cathode X-ray tube is launched is worn
Projection image is formed on the first X-ray detector after saturating steel wire, the X-ray that the second cold cathode X-ray tube is launched penetrates steel
Projection image, the first X-ray detector center line, casing centerline, the first cold yin are formed on the first X-ray detector after silk
Pole X-ray tube hub line three is formed by plane and the second X-ray detector center line, casing centerline, the second cold cathode X
It is 90 ° that ray tube hub line three, which is formed by plane included angle, and high voltage power supply is respectively that the first X-ray is visited by several power supply lines
Survey device, the second X-ray detector, the first cold cathode X-ray tube, the power supply of the second cold cathode X-ray tube, the first X-ray detector
Be respectively connected with a detector data line on the second X-ray detector, probe power data/address bus include power supply line part and
Data line part, wherein high voltage power supply is accessed in the power supply line part, the data line part and the detector data line connect
It connects；The nitrogen sweep gas knife includes pedestal, channel of nitrogen, annular housing, column-like paths, annular space, wherein channel of nitrogen and column
Shape channel is respectively positioned on base interior, through there is steel wire in column-like paths, is surrounded with annular housing in the periphery of column-like paths, institute
It states and is connected between annular housing and column-like paths by annular space, one end of the channel of nitrogen is connected to nitrogen supply air line,
The other end is connected to annular housing；Data line part and thickness of the thickness of coating sensor by probe power data/address bus
Analytical unit communication connection is spent, Thickness Analysis unit and PLC module communicate to connect, PLC module and digital type proportion valve communication link
It connects, digital type proportion valve is connected on the nitrogen supply air line, has the touching for input control instruction in the PLC module
Touch screen.
Preferably, the Thickness Analysis unit includes CPU processor, x-ray tube current DA output circuit, X-ray tube
Voltage DA output circuit, RS485 communicating circuit and power circuit, wherein x-ray tube voltage and tube current DA output circuit use
The channel TLC5620A and channel B export the input terminal of the voltage connection power module of 0-5VDC；RS485 circuit uses two panels
MAX485 chip, it is a piece of for carrying out communication connection, a piece of communication for PLC with two X-ray detectors；CPU processing
Device model ATMEGA128, power supply use the+5VDC of Switching Power Supply input.
Preferably, the PLC module includes CPU module, two communication modules being connected with CPU module, with CPU module phase
Power supply module and DA analog module even a, wherein communication module is connected with the output end of the Thickness Analysis unit；In addition
One communication module is connect with touch panel communication；Touch screen is used to input the Initialize installation parameter of steel wire.
Preferably, the Initialize installation parameter includes the diameter before steel wire does not plate, the linear velocity of steel wire walking, air knife
Nitrogen initial flow, the control parameter of maximum stream flow and PID.
Preferably, being connected between the digital type proportion valve and the DA analog module of PLC module；DA analog module
The analog quantity of 4-20 milliamperes of output.
Preferably, the aperture of digital type proportion valve is 0 when the output valve from DA analog module is 4-20 milliampere hour
Variation in~100% range.
Preferably, the PU between digital type proportion valve and the nitrogen sweep gas knife using 10 millimeters is managed and stainless steel soft
Pipe is connected.
Preferably, no matter digital type proportion valve opens or closes, the nitrogen pressure of front end is 0.5-0.9MPa, works as number
When the aperture of word formula proportioning valve changes in 0~100% range, the nitrogen pressure inside nitrogen sweep gas knife is in 0~0.5MPa
Variation in range.
Preferably, the area of section of the annular housing is 50 times of annular space area of section or more.
Preferably, the material of the bracket is epoxy resin, the axis of casing, the first X-ray detector, the first cold yin
Pole X-ray tube three is located in a plane；The axis of casing, the second cold cathode X-ray tube, the second X-ray detector three
In another plane；The angle of above-mentioned two plane is 90 degree.
In above technical scheme, thickness transducer is used for the thickness of coating of real-time detection steel wire: when steel wire is by sensing
When the casing of device, X-ray transparent casing and steel wire that X-ray tube is launched and then the shape on its opposite X-ray detector
At image, since the absorptivity of steel and zinc to X-ray is different, the image greyscale formed on X-ray detector is different, due to by
Two groups of X-ray emissions and detector, two groups of angles are 90 degree, in synchronization, obtain identical steel wire position diameter data and
Position data, two groups of data carry out data compound operation after being sent to thickness transducer, before not plated according to the steel wire of initial setting up
Diameter data, so that it may the thickness of coating value of steel wire is obtained, and two groups of X-rays can be alleviated to a certain extent because of steel wire at 90 degree
It shakes and is influenced caused by testing result.
Wherein, high-voltage power module provides two groups of power supplys, wherein one group of voltage is high-voltage pulse power source, it is two X-ray tubes
Power supply, voltage are that 10-20KV is adjustable, electric current is 0.5 milliampere；Another group of power supply is+12VDC power supply, is two X-ray detectors
Power supply.The high voltage power supply of output is pulsed, and pulse width is 15 microseconds, and the period is 1 millisecond.The voltage of high-voltage power module and
Electric current adjustment is that the analog quantity exported by the D/A converter of one chip microcomputer is controlled.Not according to steel wire diameter
Together, the voltage magnitude of high-voltage power module output changes between 10KV-20KV.For example, 1.25 millimeters of steel wire will use
11KV, 0.2 milliampere.
X-ray tube uses Mini-size cold cathode pulsed tungsten target X-ray tube, and tube current is 0.2 milliampere, focal spot size 0.3*
0.3, power 6W.X-ray emission window is filtered using 0.1 millimeter of beryllium.The angle of the X-ray inspired is 30 degree
In range.
The CMOS X-ray imaging plate that resolution ratio is 4000*4000 can be selected in X-ray detector, it can be directly from steel
Silk is converted into the digital picture of 4000*4000 transmitted through the X-ray come, and can obtain the ruler of steel wire according to the digital picture of steel wire
It is very little.Its effective imaging size is 20mm*20mm.Input power is 12VDC ± 0.1V, and output interface is the plug of 4 cores, and data are adopted
It is transmitted with iic bus technology.The CPU being transferred in sensor, CPU convert the data into RS232 again and are transferred to computer
System.
X-ray tube passes through internal epoxy board mount respectively with X-ray detector and is fixed, and makes two sets of transmittings and receives
It is placed at 90 degree of angle directions.
In above technical scheme, Thickness Analysis unit can be described as microcomputer analysis and Control system, effect master again
If thickness of coating is calculated according to the detection data from thickness transducer, then thickness data is transmitted to PLC module；Its
The ATMEGA128 of the AVR series of high speed can be selected in CPU, and RS232 data line can be selected in output end.Thickness Analysis unit is to coating
The Computing Principle of thickness is as shown in figure 4, its calculation method is as follows:
Set the desired value of Zinc Coating Thickness: ZIt is expected that；Acquire the reality value of Zinc Coating Thickness: Z1, Z2；Calculate the reality of Zinc Coating Thickness
Value: Z0.From obtained digital picture available D1, D2, d1, d2, L1, L2 equidimension data, N1, N2, M1, M2 are constant.
Calculation formula is as follows:
θ 2=ctg (D2/2/M2)；
Steel wire diameter D=((N2+L1) * tg θ 2) * 2 after plating；
δ 2=(D-d0)/2；
θ 1=ctg (D1/2/M1)；
Steel wire diameter D=((N1+L2) * tg θ 1) * 2 after plating；
δ 1=(D-d0)/2；
To which the actual value Z of Zinc Coating Thickness be calculated0=(δ 2+ δ 1)/2.Compare the desired value and reality of Zinc Coating Thickness
Value: if Z0> ZIt is expected that, PLC output increase, the increase of digital proportional valve opening；Conversely, PLC output is reduced, digital type proportion valve is opened
Degree reduces.
PLC module can be described as program controller PLC unit again, and Panasonic's AFPX series composition can be used, by a CPU module,
Two communication modules and DA analog module composition, two communication modules respectively with microcomputer system and touch screen
Carry out RS232 connection.Touch screen is the human-computer interaction tool of this control system, display and input for data.
Digital type proportion valve is the actuator of this system, is connected by DA analog module with PLC, analog module
4-20 milliamperes of signal controls the 0-100% aperture of proportioning valve to control the flow of nitrogen.
Nitrogen sweep gas knife is the end effector mechanism of this system, for being played by output nitrogen to excessive coating
The effect of purging, decrement, decides this system to the control effect of thickness of coating.
Working principle of the present invention is as follows: steel wire is entered coating thickness plating sensing by zinc pot after nitrogen sweep gas knife purging
Device, during thickness of coating sensor passes through, thickness of coating sensor collects the thickness information of the coating of steel wire surface,
Information is transferred to Thickness Analysis control system, is calculated by data, obtains thickness data, thickness data is transferred to programmable
Control unit, control unit compare data and target value, if thickness value is greater than target value, by PID arithmetic and then add
The aperture of big digital nitrogen ratios valve, increases the purging effort of the nitrogen of air knife, and zinc coating thickness reduces.As thickness value is less than mesh
Scale value reduces the aperture of digital nitrogen ratios valve in turn by PID arithmetic, reduces the purging effort of the nitrogen of air knife, zinc layers
Thickness increases.
With the application of the invention, the real-time detection and automatic control to hot-dip galvanizing steel wire coating can be realized, not only eliminate artificial
Operation, and there is higher control precision；Detection cycle of the present invention is automatic according to testing result to carry out accordingly up to 2 milliseconds
Adjustment, controls thickness of coating within the scope of target value ± 15 gram always, ensure that the qualification rate of product, saved metallic zinc,
Production cost is reduced, energy-saving production requirement is met, there is significant economic benefit.
Detailed description of the invention
Fig. 1 is system construction drawing of the invention；
Fig. 2 is the mechanical structure main view of thickness of coating sensor in the present invention；
Fig. 3 is the mechanical structure left view of thickness of coating sensor in the present invention；
Fig. 4 is the schematic diagram for calculating thickness of coating in the present invention based on thickness of coating sensor detection data；
Fig. 5 is the mechanical mechanism sectional view of nitrogen sweep gas knife in the present invention；
Fig. 6 is the working principle of the invention figure；
In figure；
1, sheet lead shell 2, bracket 3, casing
4, the first X-ray detector 5, the second X-ray detector 6, the first cold cathode X-ray tube
7, the second cold cathode X-ray tube 8, high voltage power supply 9, power supply line
10, detector data line 11, probe power data/address bus 12, steel wire
21, pedestal 22, channel of nitrogen 23, annular housing
24, column-like paths 25, annular space.
Specific embodiment
Below by specific embodiments of the present invention will be described in detail.In order to avoid excessive unnecessary details,
It will not be described in detail in following embodiment to belonging to well known structure or function.
Approximating language used in following embodiment can be used for quantitative expression, show in the feelings for not changing basic function
Quantity is allowed to have certain variation under condition.In addition to being defined, technical and scientific term used in following embodiment have with
The identical meanings that those skilled in the art of the invention are commonly understood by.Term " first " used in following embodiment, " second "
Etc. being not offered as any sequence, quantity or importance, and it is only used for distinguishing a kind of element and another element.
Embodiment 1
Full-automatic heat zinc-coated wire coating online detection and control system, as shown in Fig. 1,2,3,5, including thickness of coating sensing
Device, Thickness Analysis unit, PLC module, digital type proportion valve, nitrogen sweep gas knife；Wherein, the thickness of coating sensor includes
Sheet lead shell 1, bracket 2, casing 3, the first X-ray detector 4, the second X-ray detector 5, the first cold cathode X-ray tube 6, the
Two cold cathode X-ray tubes 7, high voltage power supply 8, power supply line 9, detector data line 10, probe power data/address bus 11, wherein propping up
Frame 2 is located at the inside of sheet lead shell 1, described sleeve pipe 3, the first X-ray detector 4, the second X-ray detector 5, the first cold cathode
X-ray tube 6, the second cold cathode X-ray tube 7, high voltage power supply 8 are respectively fixedly connected on bracket 2, and running through in described sleeve pipe 3 has
Steel wire 12, the X-ray that the first cold cathode X-ray tube 6 is launched form throwing after penetrating steel wire 12 on the first X-ray detector 4
Shadow image, the X-ray that the second cold cathode X-ray tube 7 is launched form throwing after penetrating steel wire 12 on the first X-ray detector 5
Shadow image, 4 center line of the first X-ray detector, casing centerline, 6 center line three of the first cold cathode X-ray tube are formed by
Plane is formed by with 5 center line of the second X-ray detector, casing centerline, 7 center line three of the second cold cathode X-ray tube
Plane included angle is 90 °, and high voltage power supply 8 is respectively the first X-ray detector 4, the second X-ray detector by several power supply lines 9
5, the first cold cathode X-ray tube 6, the power supply of the second cold cathode X-ray tube 7, the first X-ray detector 4 and the second X-ray detector
A detector data line 10 is respectively connected on 5, probe power data/address bus 11 includes power supply line part and data line part,
Described in power supply line part access high voltage power supply 8, the data line part is connect with the detector data line 10；The nitrogen
Purging air knife includes pedestal 21, channel of nitrogen 22, annular housing 23, column-like paths 24, annular space 25, wherein channel of nitrogen 22 and column
Shape channel 24 is respectively positioned on inside pedestal 21, through there is steel wire 12 in column-like paths 24, is surrounded in the periphery of column-like paths 24
Annular housing 23 is connected between the annular housing 23 and column-like paths 24 by annular space 25, and the one of the channel of nitrogen 22
End is connected to nitrogen supply air line, the other end is connected to annular housing 23；The thickness of coating sensor passes through probe power
The data line part of data/address bus 11 is connect with Thickness Analysis unit communication, and Thickness Analysis unit and PLC module communicate to connect,
PLC module and digital type proportion valve communicate to connect, and digital type proportion valve is connected on the nitrogen supply air line, the PLC mould
There is the touch screen for input control instruction on block.
Wherein, the Thickness Analysis unit comprising CPU processor, x-ray tube current DA output circuit, X-ray tube electricity
Press DA output circuit, RS485 communicating circuit and power circuit.X-ray tube voltage and tube current DA output circuit use
The channel TLC5620A and channel B export the input terminal of the voltage connection power module of 0-5VDC.RS485 circuit uses two panels
MAX485 chip, it is a piece of for carrying out communication connection, a piece of communication for PLC with two X-ray detectors.CPU is used
ATMEGA128, ATMEGA128 are high-speed CPU, and performance is up to 16MIPS when working under the clock of 16M.Power supply is using switch electricity
+ the 5VDC of source input.
The PLC module comprising: CPU module, two communication modules being connected with CPU module are connected with CPU module
Power supply module and DA analog module (I/O module), wherein a communication module is connected with the output end of the Thickness Analysis unit；
An other communication module and external input device (touch screen) communicate to connect；Touch screen is used to input the Initialize installation ginseng of steel wire
Number, such as: steel wire do not plate before diameter D0, steel wire walking linear velocity V1, the nitrogen initial flow and maximum stream flow of air knife,
And the control parameter of PID.
It is attached between the digital type proportion valve and the D/A module of the PLC；The output of D/A module is 4-20 milliamperes
Analog output, be connected directly with the analog input end of proportioning valve, connecting line uses two core shielding lines, and shielded layer has to
Single-end earthed.
PU between the digital type proportion valve and the nitrogen sweep gas knife using 10 millimeters is managed and stainless steel flexible hose phase
Connection, after PU pipe is connected to above zinc pot, by crossover sub, becomes stainless steel flexible hose and is attached, and proportioning valve passes through PLC's
The 4-20 milliampere of D/A module input corresponds to the aperture of proportioning valve 0-100%, and the nitrogen pressure before proportioning valve is 0.5-0.9MPa,
When the aperture variation of the 0-100% of proportioning valve, the nitrogen pressure being added in air knife changes between 0-0.5MPa.
Air knife is to be made using 316 stainless steels by finishing, and nitrogen enters annular after channel of nitrogen input
The sectional area of cavity, annular housing will will be far longer than the sectional area of annular space, to ensure that from 360 degree of directions blowouts of annular space
Nitrogen gas pressure is equal, and nitrogen blows to the not solidified zinc in a molten state of steel wire surface from 360 degree of directions of annular space
On liquid, extra zinc liquid is blown back into zinc pot downwards from steel wire surface, purging effort can become with the variation of nitrogen flow
Change, to control the thickness of steel wire surface coating.
The working principle of the device is as shown in Figure 6: steel wire enters coating thickness after nitrogen sweep gas knife purging by zinc pot and plates
Sensor, during thickness of coating sensor passes through, thickness of coating sensor collects the thickness of the coating of steel wire surface
Information is transferred to Thickness Analysis control system, calculates by data, obtain thickness data, thickness data is transferred to by information
PLC technology unit, control unit compare data and target value, if thickness value is greater than target value, by PID arithmetic
And then the aperture of digital nitrogen ratios valve is increased, the purging effort of the nitrogen of air knife is increased, zinc coating thickness reduces.Such as thickness value
Less than target value, reduces the aperture of digital nitrogen ratios valve in turn by PID arithmetic, reduce the purging power of the nitrogen of air knife
Degree, zinc coating thickness increase.
Embodiment 2
Full-automatic heat zinc-coated wire coating online detection and control system, as shown in Fig. 1,2,3,5, including thickness of coating sensing
Device, Thickness Analysis unit, PLC module, digital type proportion valve, nitrogen sweep gas knife；
Wherein, the thickness of coating sensor includes sheet lead shell 1, bracket 2, casing 3, the first X-ray detector 4, and
Two X-ray detectors 5, the first cold cathode X-ray tube 6, the second cold cathode X-ray tube 7, high voltage power supply 8, power supply line 9, detector
Data line 10, probe power data/address bus 11, wherein bracket 2 is located at the inside of sheet lead shell 1, and described sleeve pipe 3, the first X are penetrated
Line detector 4, the second X-ray detector 5, the first cold cathode X-ray tube 6, the second cold cathode X-ray tube 7, high voltage power supply 8 are divided
It is not fixedly connected on bracket 2, through there is steel wire 12 in described sleeve pipe 3, the X-ray that the first cold cathode X-ray tube 6 is launched is worn
Projection image is formed on the first X-ray detector 4 after saturating steel wire 12, the X-ray that the second cold cathode X-ray tube 7 is launched is worn
Form projection image after saturating steel wire 12 on the first X-ray detector 5,4 center line of the first X-ray detector, casing centerline,
First cold cathode X-ray tube, 6 center line three be formed by plane and 5 center line of the second X-ray detector, casing centerline,
It is 90 ° that second cold cathode X-ray tube, 7 center line three, which is formed by plane included angle, and high voltage power supply 8 is divided by several power supply lines 9
It Wei not the first X-ray detector 4, the second X-ray detector 5, the first cold cathode X-ray tube 6, the confession of the second cold cathode X-ray tube 7
A detector data line 10, probe power number are respectively connected on electricity, the first X-ray detector 4 and the second X-ray detector 5
It include power supply line part and data line part according to bus 11, wherein high voltage power supply 8, the data line are accessed in the power supply line part
Part is connect with the detector data line 10；
The nitrogen sweep gas knife includes pedestal 21, channel of nitrogen 22, annular housing 23, column-like paths 24, annular space 25,
Middle channel of nitrogen 22 and column-like paths 24 are respectively positioned on inside pedestal 21, through there is steel wire 12 in column-like paths 24, are led in column
The periphery in road 24 is surrounded with annular housing 23, is connected between the annular housing 23 and column-like paths 24 by annular space 25, institute
The one end for stating channel of nitrogen 22 is connected to nitrogen supply air line, the other end is connected to annular housing 23；
Data line part and Thickness Analysis unit of the thickness of coating sensor by probe power data/address bus 11
Communication connection, Thickness Analysis unit and PLC module communicate to connect, and PLC module and digital type proportion valve communicate to connect, digital ratio
Example valve is connected on the nitrogen supply air line, has the touch screen for input control instruction in the PLC module.
The embodiments of the present invention have been described in detail above, but content is only the preferred embodiment of the present invention,
It is not intended to limit the invention.All any modifications, equivalent replacements, and improvements etc. done in application range of the invention, should all
It is included within protection scope of the present invention.
Claims (10)
1. full-automatic heat zinc-coated wire coating online detection and control system, it is characterised in that including thickness of coating sensor, thickness
Analytical unit, PLC module, digital type proportion valve, nitrogen sweep gas knife；
Wherein, the thickness of coating sensor includes sheet lead shell (1), bracket (2), casing (3), the first X-ray detector
(4), the second X-ray detector (5), the first cold cathode X-ray tube (6), the second cold cathode X-ray tube (7), high voltage power supply (8),
Power supply line (9), detector data line (10), probe power data/address bus (11), wherein bracket (2) is located at sheet lead shell (1)
Inside, described sleeve pipe (3), the first X-ray detector (4), the second X-ray detector (5), the first cold cathode X-ray tube
(6), the second cold cathode X-ray tube (7), high voltage power supply (8) are respectively fixedly connected on bracket (2), and described sleeve pipe runs through in (3)
Have steel wire (12), the X-ray that the first cold cathode X-ray tube (6) is launched penetrates after steel wire (12) in the first X-ray detector
(4) projection image is formed on, the X-ray that the second cold cathode X-ray tube (7) is launched penetrates after steel wire (12) in the second X-ray
Projection image, the first X-ray detector (4) center line, casing centerline, the first cold cathode X-ray tube are formed on detector (5)
(6) center line three is formed by plane and penetrates with the second X-ray detector (5) center line, casing centerline, the second cold cathode X
It is 90 ° that spool (7) center line three, which is formed by plane included angle, and high voltage power supply (8) is respectively first by several power supply lines (9)
X-ray detector (4), the second X-ray detector (5), the first cold cathode X-ray tube (6), the second cold cathode X-ray tube (7) supply
A detector data line (10), sensor are respectively connected on electricity, the first X-ray detector (4) and the second X-ray detector (5)
Power data bus (11) includes power supply line part and data line part, wherein high voltage power supply (8) are accessed in the power supply line part,
The data line part is connect with the detector data line (10)；
The nitrogen sweep gas knife includes pedestal (21), channel of nitrogen (22), annular housing (23), column-like paths (24), annular space
(25), wherein channel of nitrogen (22) and column-like paths (24) are respectively positioned on pedestal (21) inside, and running through in column-like paths (24) has
Steel wire (12) is surrounded with annular housing (23) in the periphery of column-like paths (24), the annular housing (23) and column-like paths
(24) be connected between by annular space (25), one end of the channel of nitrogen (22) is connected to nitrogen supply air line, the other end and
Annular housing (23) connection；
The thickness of coating sensor is logical by the data line part of probe power data/address bus (11) and Thickness Analysis unit
Letter connection, Thickness Analysis unit and PLC module communicate to connect, and PLC module and digital type proportion valve communicate to connect, digital proportional
Valve is connected on the nitrogen supply air line, has the touch screen for input control instruction in the PLC module.
2. full-automatic heat zinc-coated wire coating online detection and control system according to claim 1, it is characterised in that described
Thickness Analysis unit includes CPU processor, x-ray tube current DA output circuit, x-ray tube voltage DA output circuit, and RS485 is logical
Circuit and power circuit are interrogated, wherein x-ray tube voltage and tube current DA output circuit use the channel TLC5620A and channel B, defeated
The input terminal of the voltage connection power module of 0-5VDC out；RS485 circuit uses two panels MAX485 chip, a piece of to be used for and two
X-ray detector carries out communication connection, a piece of communication for PLC；CPU processor model ATMEGA128, power supply use
+ the 5VDC of Switching Power Supply input.
3. full-automatic heat zinc-coated wire coating online detection and control system according to claim 1, it is characterised in that described
PLC module includes CPU module, two communication modules being connected with CPU module, the power supply module being connected with CPU module and DA simulation
Module is measured, wherein a communication module is connected with the output end of the Thickness Analysis unit；An other communication module and touch screen are logical
Letter connection；Touch screen is used to input the Initialize installation parameter of steel wire.
4. full-automatic heat zinc-coated wire coating online detection and control system according to claim 3, it is characterised in that described
Initialize installation parameter includes the diameter before steel wire does not plate, the linear velocity of steel wire walking, the nitrogen initial flow of air knife, max-flow
The control parameter of amount and PID.
5. full-automatic heat zinc-coated wire coating online detection and control system according to claim 3, it is characterised in that described
It is connected between digital type proportion valve and the DA analog module of PLC module；DA analog module exports 4-20 milliamperes of analog quantity.
6. full-automatic heat zinc-coated wire coating online detection and control system according to claim 5, it is characterised in that when next
It is 4-20 milliampere hour from the output valve of DA analog module, the aperture of digital type proportion valve changes in 0~100% range.
7. full-automatic heat zinc-coated wire coating online detection and control system according to claim 1, it is characterised in that number
It is connected between formula proportioning valve and the nitrogen sweep gas knife using 10 millimeters of PU pipe and stainless steel flexible hose.
8. full-automatic heat zinc-coated wire coating online detection and control system according to claim 1, it is characterised in that number
The nitrogen input pressure of formula proportioning valve front end is 0.5~0.9MPa, when the aperture of digital type proportion valve is in 0~100% range
When variation, the nitrogen pressure inside nitrogen sweep gas knife changes within the scope of 0~0.5MPa.
9. full-automatic heat zinc-coated wire coating online detection and control system according to claim 1, it is characterised in that described
The area of section of annular housing (23) is 50 times or more of annular space (25) area of section.
10. full-automatic heat zinc-coated wire coating online detection and control system according to claim 1, it is characterised in that described
The material of bracket (2) is epoxy resin, axis, the first X-ray detector (4), the first cold cathode X-ray tube (6) of casing (3)
Three is located in a plane；The axis of casing (3), the second cold cathode X-ray tube (7), the second X-ray detector (5) three
In another plane；The angle of above-mentioned two plane is 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892828.0A CN109023199B (en) | 2018-08-07 | 2018-08-07 | Full-automatic hot galvanized steel wire coating on-line detection control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892828.0A CN109023199B (en) | 2018-08-07 | 2018-08-07 | Full-automatic hot galvanized steel wire coating on-line detection control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109023199A true CN109023199A (en) | 2018-12-18 |
| CN109023199B CN109023199B (en) | 2020-05-15 |
Family
ID=64649446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810892828.0A Active CN109023199B (en) | 2018-08-07 | 2018-08-07 | Full-automatic hot galvanized steel wire coating on-line detection control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109023199B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645234A (en) * | 2022-03-21 | 2022-06-21 | 山东乾钢金属科技有限公司 | Leveling equipment for improving surface quality of zinc-aluminum-magnesium coating band steel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT294255B (en) * | 1968-11-12 | 1971-11-10 | Westinghouse Electric Corp | Digital control arrangement to keep the thickness of the rolling stock leaving a rolling train constant |
| GB2112518A (en) * | 1981-12-14 | 1983-07-20 | Seiko Instr & Electronics | Film thickness gauge |
| JP2008039542A (en) * | 2006-08-04 | 2008-02-21 | Sony Corp | Magnetic tape film thickness measuring device and film thickness measuring method |
| CN201876248U (en) * | 2010-12-02 | 2011-06-22 | 北京时代之峰科技有限公司 | Coating thickness measuring device |
| CN102912275A (en) * | 2012-10-23 | 2013-02-06 | 鞍钢股份有限公司 | Automatic control system for plating thickness of hot galvanizing line |
| CN203276037U (en) * | 2013-04-28 | 2013-11-06 | 苏州北新矿棉板有限公司 | Sheet thickness control system |
| CN104930992A (en) * | 2015-06-15 | 2015-09-23 | 安徽工程大学 | Thickness gauge |
-
2018
- 2018-08-07 CN CN201810892828.0A patent/CN109023199B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT294255B (en) * | 1968-11-12 | 1971-11-10 | Westinghouse Electric Corp | Digital control arrangement to keep the thickness of the rolling stock leaving a rolling train constant |
| GB2112518A (en) * | 1981-12-14 | 1983-07-20 | Seiko Instr & Electronics | Film thickness gauge |
| JP2008039542A (en) * | 2006-08-04 | 2008-02-21 | Sony Corp | Magnetic tape film thickness measuring device and film thickness measuring method |
| CN201876248U (en) * | 2010-12-02 | 2011-06-22 | 北京时代之峰科技有限公司 | Coating thickness measuring device |
| CN102912275A (en) * | 2012-10-23 | 2013-02-06 | 鞍钢股份有限公司 | Automatic control system for plating thickness of hot galvanizing line |
| CN203276037U (en) * | 2013-04-28 | 2013-11-06 | 苏州北新矿棉板有限公司 | Sheet thickness control system |
| CN104930992A (en) * | 2015-06-15 | 2015-09-23 | 安徽工程大学 | Thickness gauge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645234A (en) * | 2022-03-21 | 2022-06-21 | 山东乾钢金属科技有限公司 | Leveling equipment for improving surface quality of zinc-aluminum-magnesium coating band steel |
| CN114645234B (en) * | 2022-03-21 | 2023-09-19 | 山东乾钢金属科技有限公司 | Leveling equipment for improving surface quality of zinc-aluminum-magnesium-plated strip steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109023199B (en) | 2020-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102353427B (en) | Detection device for metrological characteristics of water meter and detection method for using same | |
| CN108427093A (en) | A kind of calibrating and measuring system and method for watt-hour meter automatic verification device | |
| CN109023199A (en) | Full-automatic heat zinc-coated wire coating online detection and control system | |
| CN201662450U (en) | Heat-engineering automatic detection device | |
| CN109991480A (en) | Detection device and method of the M-Bus signal instrument under Intended radiation interference | |
| CN106868440A (en) | A kind of strip continuous hot galvanizing thickness of coating prediction and its adjusting method | |
| CN108680702B (en) | Device and method for testing response speed of sensor | |
| CN109654009A (en) | A kind of hydraulic pump motor Performance Test System and its test method | |
| CN110530597B (en) | Wind speed calibration system under low pressure | |
| CN112098279A (en) | Wireless measurement system for deposition amount of fog drops with various points | |
| CN106610671A (en) | Intelligent high precision flow control system | |
| CN110222825A (en) | A kind of finished cement specific surface area prediction technique and system | |
| CN202346880U (en) | Novel batching device | |
| CN101342550B (en) | Method for expanding automatized aligning steel plate temperature range of hot straightening machine | |
| CN107490608A (en) | Mechanics electrochemistry reciprocation in-situ measurement device under a kind of thin pendular ring border | |
| CN111318234A (en) | Flotation device feeding pulp detection and adjustment device | |
| CN207779665U (en) | The model equipment that jet pipe is connected with shape in wind tunnel test | |
| CN208177704U (en) | Automatic spray apparatus for foaming structure part | |
| CN101989068A (en) | Simulation process system and method based on quality flow controller | |
| CN203745049U (en) | Calibration device of gas precision flow meter | |
| CN203414827U (en) | Automatic control system of furnace body cooling air duct | |
| CN106545717B (en) | A kind of multi-channel fluid distribution reactor | |
| CN205808680U (en) | A kind of aircraft hot gas anti-icing system fluted shape hole discharge coefficient measurement apparatus | |
| CN217404301U (en) | Testing arrangement of concrete rate of losing water | |
| CN207380141U (en) | A kind of direct current formate field intensity measuring system based on wireless telecommunications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |