CN207207437U - A kind of digital spray printing spray nozzle detecting system - Google Patents
A kind of digital spray printing spray nozzle detecting system Download PDFInfo
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- CN207207437U CN207207437U CN201720049994.5U CN201720049994U CN207207437U CN 207207437 U CN207207437 U CN 207207437U CN 201720049994 U CN201720049994 U CN 201720049994U CN 207207437 U CN207207437 U CN 207207437U
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Abstract
The utility model discloses a kind of digital spray printing spray nozzle detecting system, including：Acquisition system and association's processing system, wherein, the acquisition system includes：AD high speed acquisition systems and data acquisition remove Noise Algorithm system；Association's processing system includes printer control engine, the high-speed AD acquisition system acquisition curent change data, and pass to data acquisition and remove Noise Algorithm system, the data acquisition removes Noise Algorithm system and blocks curent change caused by light source based on filtering reduction Noise Algorithm analysis ink droplet, and detecting ink droplet occlusion state by laser sensor judges spray orifice plug-hole state.
Description
Technical field
It the utility model is related to digital spray printing field, more particularly to a kind of digital spray printing spray nozzle detecting system.
Background technology
At present, spray orifice detection technique is mainly used in digital spray printing spray nozzle detection application field, at present digital spray
Print spray orifice, which detects ripe application mode, mainly two big types, and a kind of is that the state diagram manually gone out according to nozzle printing is worth by rule of thumb
Judged；One kind is manually to observe shower nozzle ink droplet ink-jet situation by drop analysis instrument.These technologies all significantly according to
Rely in manual operation, off line automatic detection can not be completed.
Existing shower nozzle sprays empty detection method：
1. traditional mapping detection mode
Judgment mode：Shower nozzle state diagram is made according to the nozzle hole number of printing head, with reference to the spray printing shape of shower nozzle state diagram
State judges the positional information of shower nozzle plug-hole.
Defect：
1) operating process is complicated, higher for attendant's learning cost.
2) need to suspend production process, the product produced, independent print state must be stopped in Industrial Printing production
Figure, judges spray nozzle state, strong influence industrial production efficiency.
3) state diagram makes complicated, and state diagram makes complicated, needs to make for different types of shower nozzle different types of
Shower nozzle.When shower nozzle species mixes, manageability is not allowed in spray orifice state diagram, false judgment easily occurs.
2. visual identity detection mode
Judgment mode：By using drop analysis instrument, the microstate that shower nozzle injection is caught by camera dynamic is gone forward side by side
Row records in real time, analyzes record using visual identity mode, judges shower nozzle plug-hole situation.
Defect：
1) characterization processes complexity control not easy to install, vision system is since it is desired that catch the track of ink droplet so needing to grow very much
Focal length magnified image, just can guarantee that the degree of accuracy of identification.But due in actual print procedure, the physical bit between shower nozzle matrix
Put by distance restraint.Therefore, it is necessary to choose suitable camera, and the putting position of focal length lenses according to actual conditions
Need to calculate meticulously.
2) detection rates are slow, the application of the spray orifice state for needing to detect rapidly all shower nozzles in commercial Application, by
Need to move back and forth positioning between shower nozzle in cost reason visual identifying system, find the spray traveled through in all shower nozzle matrixes
Head is, it is necessary to take considerable time.
3) cost is high, and the capital equipment of vision system is high-speed CCD industrial camera, and high-speed CCD industrial camera involves great expense,
When needing lifting system detection speed, it will usually increase the quantity of high-speed CCD industrial camera, will so cause the entirety of equipment
Cost greatly improves.
Utility model content
Goal of the invention of the present utility model is to provide a kind of digital spray printing spray nozzle detecting system.
It is as follows that the utility model solves the technical scheme that above-mentioned technical problem is taken：
A kind of digital spray printing spray nozzle detecting system, it is characterised in that including：Acquisition system and association's processing system,
Wherein, the acquisition system includes：AD high speed acquisition systems and data acquisition remove Noise Algorithm system；Association's processing system
Engine, the high-speed AD acquisition system acquisition curent change data are controlled including printer, and passes to data acquisition removal and makes an uproar
Sound algorithmic system, the data acquisition removal Noise Algorithm system are blocked light source based on filtering reduction Noise Algorithm analysis ink droplet and drawn
The curent change risen, ink droplet occlusion state is detected by laser sensor and judges spray orifice plug-hole state.
Preferably, area source laser sensor is additionally provided with, for detecting shower nozzle injection track cross section；
Injection ink droplet passes through area source sensor, the high-speed AD sample detecting system reality to control spray nozzle at a high speed one by one
The curent change data of sensor when Shi Jilu ink droplets pass through surface of light source.
After the utility model takes such scheme, using high-speed AD acquisition system acquisition data, efficient filtering is used
Reduce Noise Algorithm analysis ink droplet and block curent change caused by light source, detecting ink droplet occlusion state by laser sensor judges
Spray orifice plug-hole state.Ensure the accuracy of detection.
By improved plan, can be fast distributed detect spray orifice variable condition, it is rapid to find that plug-hole shower nozzle enters
Row maintenance is handled, and ensures print quality.In program system, also directed to the physical location and continuous state of shower nozzle plug-hole, intelligence
Diagnosis prompting is made, guest operation person can accurately make the operation for changing shower nozzle or disassembly, cleaning, prominent to be run into production
Hair-like condition makes good emergency measure and judges to provide reliable theoretical foundation.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages can pass through
Specifically noted structure is realized and obtained in the specification, claims and accompanying drawing write.
Brief description of the drawings
The utility model is described in detail below in conjunction with the accompanying drawings, to cause above-mentioned advantage of the present utility model more
Clearly.
Fig. 1 is the schematic diagram of the utility model digital spray printing spray nozzle detecting system.
Embodiment
The utility model is described in detail with reference to specific embodiment.
As shown in figure 1, the purpose of this utility model is to overcome the weak point of above conventional art, propose that one kind is based on
The detecting system of laser light sensation principle, it is that each shower nozzle of shower nozzle matrix is equipped with a set of sensing identifying system.
The print engine that identifying system coordinates customization is sensed, realizes the plug-hole detection side of the spray nozzle of high-efficiency and low-cost
Formula, so as to lift shower nozzle plug-hole detection efficiency, learning cost is reduced, improves detection accuracy and production efficiency.
Wherein, this design for improving spray nozzle detection, the industry that the program is mainly used in efficient stable are beaten
Environment is printed, by finding spray nozzle abnormal state in time, product yield is greatly promoted, increases economic benefit.
, it is necessary to carry out judgement spray nozzle by shower nozzle state diagram in traditional Industrial Printing spray nozzle detection technique
Condition adjudgement, this mode are to influence overall printing effect, as the making and transmission distortion of state diagram cause judgement
As a result it is inaccurate.Although visual identity detection mode can solve the problems, such as the detection of traditional industry spray nozzle, involve great expense
And because the technical bottleneck of itself needs to use specific mechanical structure, to reduce cost, it is also necessary to specially set for the program
Count the guide track system of a camera movement.Because detecting system always belongs to motion state, greatly increase in detection process
Unstability, simultaneously because video camera Cost Problems are difficult to accomplish to be equipped with special video camera for each shower nozzle, so detection is imitated
Rate is had a greatly reduced quality, and is unfavorable for the orientation problem of fast accurate.
Specifically, a kind of digital spray printing spray nozzle detecting system, it is characterised in that including：Acquisition system and association
Processing system, wherein, the acquisition system includes：AD high speed acquisition systems and data acquisition remove Noise Algorithm system；It is described
Processing system is assisted to include printer control engine, the high-speed AD acquisition system gathers curent change data, and passes to data
Collection removes Noise Algorithm system, and the data acquisition removes Noise Algorithm system reduces Noise Algorithm analysis ink droplet based on filtering
Curent change caused by light source is blocked, detecting ink droplet occlusion state by laser sensor judges spray orifice plug-hole state.
Preferably, area source laser sensor is additionally provided with, for detecting shower nozzle injection track cross section；
Injection ink droplet passes through area source sensor, the high-speed AD sample detecting system reality to control spray nozzle at a high speed one by one
The curent change data of sensor when Shi Jilu ink droplets pass through surface of light source.
In embodiment, specific improvement includes：
1. the design, which is improved, to be included traditional high-speed CCD camera replacing with face light eye laser sensor, reduce and pass
Feel equipment cost, simplify the installation difficulty of sensing equipment.
2. customizing ink ejection data, spray nozzle is controlled to export ink droplet one by one in units of single spray orifice.
3. the faint instantaneous analog amount fed back using high-precision high-speed AD acquisition system monitoring laser sensor is changed, essence
Really record ink droplet passes through the state of sensor.
The utility model advantage：
1. the scheme after improving, high-speed CCD camera is substituted from laser sensor, significantly reduces equipment cost；
2. customizing ink ejection data, rationally control shower nozzle spray is empty to drip the black time, the drop ink time of occurrence allowed between Kong Yukong is poor,
It ensure that the accuracy of data acquisition；
3. using high-speed AD acquisition system acquisition data, reducing Noise Algorithm analysis ink droplet using efficient filtering blocks light
Curent change caused by source, ink droplet occlusion state is detected by laser sensor and judges spray orifice plug-hole state.Ensure the essence of detection
Exactness.
By improved plan, can be fast distributed detect spray orifice variable condition, it is rapid to find that plug-hole shower nozzle enters
Row maintenance is handled, and ensures print quality.In program system, also directed to the physical location and continuous state of shower nozzle plug-hole, intelligence
Diagnosis prompting is made, guest operation person can accurately make the operation for changing shower nozzle or disassembly, cleaning, prominent to be run into production
Hair-like condition makes good emergency measure and judges to provide reliable theoretical foundation.
More specifically, from area source laser sensor detection shower nozzle injection track cross section, control spray nozzle is one by one
Injection ink droplet passes through area source sensor at a high speed.Recorded when ink droplet passes through surface of light source and passed in real time using high-speed AD sample detecting system
The curent change of sensor, by microprocessor record current changing value, and carry out reducing the treated filter data of Noise Algorithm.Pass through again
Special algorithm is analyzed data, is caught the curent change state that lower ink droplet passes through area source moment, is carried out by the state
Ink droplet judges.
Scheme advantage of the present utility model includes：
1. high-speed AD sampling catches the change of sensor transient current, False Rate is reduced.
2. the noise reduction algorithm of intelligence is effective to cross filter data, False Rate is reduced.
3. the instantaneous state that ink droplet is passed through to surface of light source by intelligent algorithm carries out seizure record, intelligent judgement ink
Current magnitude variation when drop is passed through, can accurately identify the crossing behavior of ink droplet, and despumation and passing through for satellite point are disturbed
Test.
4. each shower nozzle is independently distributed formula judgement, detection time is greatly shortened, lifts detection efficiency
5. sensing device is not multiplexed, so the problem of position accurate positioning is not present, the machining substantially reduced
With the design difficulty of sensing equipment motion control.
6. sensing device opposing showerhead is static, avoid completely due to sensing device motion and caused by shower nozzle damage risk.
Above two detection mode is contrasted, the program possesses following advantage：
1. it is simple in construction, it is easy to control
High-speed CCD industrial camera generally needs for convenience of speed and ink saturation state when catching ink droplet form and going out thorax
Focal length high power camera lens enlarged drawing is wanted, so as to accurately obtain the image that ink droplet goes out thorax state, then carries out image analysis vision
Identification.Image clearly degree directly determines ink droplet ink ejecting state discrimination.This programme uses light sensation mode, is not directed to ink droplet
The seizure of form, but the ink droplet that goes to catch to look for another way penetrates behavior to space plane.Which can precisely, efficiently
Catch ink droplet penetrates track.
2. testing result is accurate
Due to using efficient AD sampling systems, penetrate effect of the ink droplet to light sensation face can be accurately identified, is coordinated
The recognizer of intelligence can be more accurate and clear record ink droplet penetrate behavior.
3. detection efficiency is efficient
Traditional high-speed lens visual identity mode, due to the interference on camera lens Existential Space, so in limited physics
In space, it is difficult to each shower nozzle and is equipped with high-speed lens.So when shower nozzle is large number of, shower nozzle must be multiplexed high-speed lens from
And reach the ink droplet for identifying all spray nozzles.Multiplexing high speed camera can cause recognition time to greatly prolong, and be unfavorable for industry control and show
The test environment of field.Light sensation identification sensor is provided to each nozzle surface, greatly improves detection efficiency.
4. intelligent diagnostics analyze testing result, field adjustable personnel are easy to maintenance management
Traditional Industrial Printing spray nozzle detection technique, carry out judging spray nozzle state by print state figure,
Learning cost is higher, and operating personnel need the study of long period to use skilled on Client line.The technical scheme, Ke Yitong
The location status for judging plug-hole of identification intelligent and the continuity of plug-hole are crossed, provides corresponding diagnostic recommendations, facilitates live people
Member safeguards shower nozzle.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution.All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc.,
It should be included within the scope of protection of the utility model.
Claims (2)
- A kind of 1. digital spray printing spray nozzle detecting system, it is characterised in that including：Acquisition system and association's processing system, its In, the acquisition system includes：AD high speed acquisition systems and data acquisition remove Noise Algorithm system；Association's processing system bag Printer control engine, the high-speed AD acquisition system acquisition curent change data are included, and passes to data acquisition and removes noise Algorithmic system, the data acquisition removal Noise Algorithm system are blocked light source based on filtering reduction Noise Algorithm analysis ink droplet and caused Curent change, by laser sensor detect ink droplet occlusion state judge spray orifice plug-hole state.
- 2. digital spray printing according to claim 1 spray nozzle detecting system, it is characterised in that be additionally provided with area source Laser sensor, for detecting shower nozzle injection track cross section；Injection ink droplet passes through area source sensor to control spray nozzle at a high speed one by one, and the high-speed AD sample detecting system is remembered in real time The curent change data of sensor when record ink droplet passes through surface of light source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720049994.5U CN207207437U (en) | 2017-01-17 | 2017-01-17 | A kind of digital spray printing spray nozzle detecting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720049994.5U CN207207437U (en) | 2017-01-17 | 2017-01-17 | A kind of digital spray printing spray nozzle detecting system |
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| CN207207437U true CN207207437U (en) | 2018-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757796A (en) * | 2020-12-30 | 2021-05-07 | 华中科技大学 | System and method for detecting quality of display device in whole spray printing manufacturing process |
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2017
- 2017-01-17 CN CN201720049994.5U patent/CN207207437U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757796A (en) * | 2020-12-30 | 2021-05-07 | 华中科技大学 | System and method for detecting quality of display device in whole spray printing manufacturing process |
| CN112757796B (en) * | 2020-12-30 | 2022-04-08 | 华中科技大学 | System and method for detecting quality of display device in whole spray printing manufacturing process |
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