CN207255160U - A kind of 3D printing head with monitoring compensation function - Google Patents
A kind of 3D printing head with monitoring compensation function Download PDFInfo
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- CN207255160U CN207255160U CN201720620064.0U CN201720620064U CN207255160U CN 207255160 U CN207255160 U CN 207255160U CN 201720620064 U CN201720620064 U CN 201720620064U CN 207255160 U CN207255160 U CN 207255160U
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Abstract
It the utility model is related to a kind of in 3D printing technique field be used for the 3D printing head for monitoring compensation function, the 3D printing head wherein with monitoring compensation function includes compound mounting bracket, compound mounting bracket is equipped with installing plate, installing plate is equipped with main row's printhead and auxiliary row's printhead, main row's printhead and auxiliary row's printhead are connected to the on-Line Monitor Device for detecting each printhead nozzle parameter, installing plate between main row's printhead and auxiliary row's printhead is equipped with scanning window, scanning window is used for the print pattern that main row's printhead is scanned in line scanning device, it is used for the print image for scanning main row's printhead in line scanning device, auxiliary row's printhead is used to compensate jet printing to the drain spray position of main row's printhead.The quality of timely monitor main row printhead of the 3D printing head of the utility model by on-Line Monitor Device and in line scanning device, and printed by the row's of auxiliary printhead timely compensation.
Description
Technical field
It the utility model is related to 3D printing technique field, more particularly to a kind of having for droplet ejection 3D printing device
Monitor the 3D printing head of compensation function.
Background technology
The 3D printing technique of casting sand type is the important applied field of increases material manufacturing technology.The layering printing of casting sand type is former
Reason determines that the preparation process of sand mold is made of hundreds of layers of even thousands of continuous scanning and printing processes of layer, and each print procedure includes powdering
Two act with printhead selectivity jet binder, and the phenomenon of the failure for drain spray occur in the latter or not spraying binding agent can cause
Sand mold tomography is scrapped, this causes printhead spray regime parameter real time monitoring and injection error compensation technique to beat casting sand type 3D
It is particularly important that printing whole aircraft reliability.
In the prior art, in terms of improving 3D printing head functional reliability and prolonging the service life, Publication No.
CN103218479A, it is public in the utility model patent of entitled the piezoelectric type nozzle optimum design method of cell printing " be used for "
A kind of optimum design method for piezoelectric print head is opened.The technology establishes Showerhead Fluid dynamics based on finite element theory
Model, extrapolates the pressure oscillation cycle, with reference to voltage pulse width method of adjustment by calculating after pressure at each point in printhead orifice
The model is optimized and and guides print head design process, realizes Optimal Structure Designing.The technology optimizes from print head structure
The angle of design mainly solve the problems, such as existing piezoelectric ink jet head printing when spray orifice easily block, reliability it is low；It is open
Number be CN105729799A, publication date 2016-07-06, it is entitled " have protecting equipment for printing head 3D printing equipment and
In the patent of its application method ", a kind of protective device and method of casting sand type 3D printing head are disclosed, it is therefore an objective to prevent Yin Mo
Water crystallization is dried and blocks printhead.The technology is by designing a kind of print head cleaning station so that printhead under off working state
In cleaning station, completely cut off contact of the printhead with air, extend the service life of printhead；Liu Hongguang and Zhang Xuejun etc.
People exists《The Patent Intelligence Analysis of domestic and international 3D printing rapid shaping technique》With《3D printing technique present Research and key technology》
Document in point out, 3D printing head is the core devices of 3D printing equipment, its reliability is to influence the key of this technology development
Factor, and emphasize that the failure that print head structure operational process occurs is the main reason for causing whole aircraft reliability low.Therefore, improve
The operational reliability of 3D printing head is 3D printing equipment key issue urgently to be resolved hurrily.
Utility model content
The utility model causes to print for casting sand type 3D printing process of the prior art because of individual nozzles failure
The problem of area's binding agent drain spray tomography, there is provided a kind of 3D printing head with monitoring compensation function, is beaten by monitoring to obtain in real time
Head nozzle parameter is printed, it is subjected to contrast with standard parameter and judges whether ejection failure and defective nozzle position occur, then with auxiliary
Printhead compensation jet printing mode is helped to ensure print quality.
The purpose of this utility model is achieved in that a kind of 3D printing head with monitoring compensation function, including compound
Mounting bracket, the compound mounting bracket are equipped with installing plate, and the installing plate is equipped with main row's printhead and auxiliary row's printing
The on-line monitoring that head, main row's printhead and auxiliary row's printhead are connected to for detecting each printhead nozzle parameter fills
Put, the installing plate between main row's printhead and auxiliary row's printhead is equipped with scanning window, and the scanning window is used for
Line scanning device scans the print pattern of main row's printhead, the printed drawings for being used to scan main row's printhead in line scanning device
Picture, the auxiliary row printhead are used to compensate jet printing to the drain spray position of main row's printhead.
The 3D printing head of the utility model, equipped with main row's printhead and auxiliary row's printhead, in normal 3D printing work, with
Printed based on main row's printhead, on-Line Monitor Device and scanning means to the nozzle parameter of printhead and are beaten in print procedure
It is patterned and carries out online timely monitor, the position for penetrating printing because of failure drain spray to main row's printhead is carried out by the row's of auxiliary printhead
Compensation printing, to ensure the continuity of print pattern and integrality.
To ensure the leakage print position of the main row's printhead of compensation of the row's of auxiliary printhead promptly and accurately, main row's printhead
Include the print units of some array arrangements respectively with auxiliary row's printhead, main row's printhead is along print head row into direction position
In the front of auxiliary row's printhead.
Further, main row's printhead includes the two or more rows of front and rear parallel arrangement, and adjacent row it
Between each print unit it is staggered.
For ease of realize aid in row printhead online compensation printing function, main row's printhead, auxiliary row printhead,
On-Line Monitor Device and it is connected in line scanning device with control system, during the 3D printing head print job, the main row of priority acccess control
Printhead carries out print job, and the auxiliary row printhead is according to on-Line Monitor Device and the testing result pair in line scanning device
The drain spray position of main row's printhead compensates printing, and the control system includes print module, checkout and diagnosis module and compensation
Module.
Compensation printing is realized for ease of accurate, and the print module is used to drive print pattern of the main row's printhead by setting
Printed；The checkout and diagnosis module is used to control on-Line Monitor Device and in printing of the line scanning device to main row's printhead
As a result detected in real time with nozzle parameter, and draw testing result and transmitting fault information to compensating module；The compensation mould
Root tuber regulates and controls auxiliary row's printhead according to fault message online, and injection benefit is carried out to the corresponding position of failure nozzle of main row's printhead
Repay.The 3D printing head of the utility model, it will be printed out by on-Line Monitor Device and in the on-line monitoring of line scanning device
Amount and print result are fed directly to control system, control system by fault diagnosis and error compensation, avoid printhead because
Nozzle useless and drain spray or the phenomenon do not sprayed and cause print quality problem, effectively increase printhead injection reliability.
The utility model additionally provides a kind of using the above-mentioned 3D printing head progress online compensation with monitoring compensation function
The method of printing, including such as the next stage：
First stage：Printing drive module controls main row's printhead to carry out jet printing by the print pattern of setting；
Second stage：Checkout and diagnosis module passes through in the printing of line scanning device and on-Line Monitor Device to main row's printhead
Pattern and nozzle parameter are detected in real time, and by testing result and transmitting fault information to compensating module；
Phase III：Compensating module regulates and controls auxiliary row's printhead, the failure to main row's printhead according to fault message online
The corresponding position of nozzle carries out injection compensation printing.
Second stage, on-Line Monitor Device are real by the method for Fusion using integrated start-sensor
The on-line monitoring of pressure wave and temperature characteristic parameter in existing nozzle driving condition parameter, runner, and it is pre- according to above-mentioned monitoring result
The viscosity, the size of density parameter and nozzle injection and the injection drop characteristics parameter of speed of fluid are estimated, by above-mentioned precompensation parameter
Pressure wave, temperature characteristic parameter, driving and typical ejection failure map mould in driving parameter, runner with corresponding nozzle theory
The theoretical parameter of type carries out contrast and completes fault diagnosis, determines position and the failure diagnosis information of failure nozzle.
Phase III, position and failure diagnosis information of the compensating module according to failure nozzle, generate regulation and control in due course and drive
Dynamic auxiliary arranges the driving parameter of printhead, aids in row's printhead to compensate the position of main row's printhead injection failure with driving
Printing.
The 3D printing online compensation Method of printing of the utility model, the timely monitor that control system passes through on-Line Monitor Device
And feedback, the fault message and abort situation of main row's printhead are diagnosed, and drive being printed to main row for auxiliary row's printhead in due course
The corresponding position of failure nozzle of head compensates printing, to ensure the quality of 3D printing, improves the reliability of printhead.
Brief description of the drawings
Fig. 1 is the structure diagram of the 3D printing head with monitoring compensation function of the utility model.
Fig. 2 is the partial sectional view of Fig. 1.
Fig. 3 is the arrangement schematic diagram of printhead on installing plate.
Wherein, 1 compound mounting bracket；2 on-Line Monitor Devices；3 main row's printheads；The main row's print units of 3A；4 auxiliary rows
Printhead；4A print units；5 control systems；6 spray boxes；7 intermediate plates；8 in line scanning device；9 scanning windows.
Embodiment
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, it is the 3D printing head with monitoring compensation function of the utility model, including it is compound
Mounting bracket 1, compound mounting bracket are equipped with installing plate 1A, and installing plate 1A is equipped with main row's printhead 3 and auxiliary row's printhead
4, main row prints 3 and auxiliary row's printhead 4 is connected to detect respectively the on-Line Monitor Device 2 of each printhead nozzle parameter,
Installing plate between main row's printhead 3 and auxiliary row's printhead 4 is equipped with scanning window 9, and scanning window 9, which is used to scan online, to be filled
The print pattern of the main row's printhead of 8 scannings is put, is installed in line scanning device above scanning window, auxiliary row's printhead 4 is used for
Jet printing is compensated to the drain spray position of main row's printhead 3.For ease of installing, in the compound mounting bracket on the upside of installing plate
Equipped with intermediate plate 7, surveying monitoring device 2 and be installed in line scanning device 8 on intermediate plate 4, the print head structure of the present embodiment
In, main row's printhead 3 prints the front of 4 along print head row into direction positioned at auxiliary row, and main row's printhead 3 and auxiliary are arranged
The main print unit 3A including some array arrangements and auxiliary arrange print unit 4A to printhead 4 respectively；It is main to improve printing effect
Arranging printhead 3 includes the print unit of two or more rows of front and rear parallel arrangement, and each printing list between adjacent row
Member is staggered, and each print unit is connected with the print cartridge on intermediate plate 7 respectively.
For ease of realizing the online compensation printing function of the row's of auxiliary printhead, main row's printhead 3 of the present embodiment, auxiliary row
Printhead 4, on-Line Monitor Device 2 and it is connected in line scanning device 8 with control system 5, during 3D printing head print job, preferentially
Main row's printhead 3 is controlled to carry out print job, auxiliary row's printhead 4 is according to on-Line Monitor Device 2 and the inspection in line scanning device 8
Survey result and printing is compensated to the drain spray position of main row's printhead 3, control system 5 includes print module, checkout and diagnosis module
And compensating module.Print module is used to drive main row's printhead 3 to be printed by the print pattern of setting；Checkout and diagnosis module is used
The print result and nozzle parameter of main row's printhead 3 are examined in real time in control on-Line Monitor Device 2 and in line scanning device 8
Survey, and draw testing result and transmitting fault information to compensating module；Compensating module regulates and controls auxiliary according to fault message and arranges online
Printhead 4, injection compensation is carried out to the corresponding position of failure nozzle of main row's printhead 3.The 3D printing head of the utility model, leads to
Cross on-Line Monitor Device 2 and be fed directly to control by print throughput and print result in the on-line monitoring of line scanning device 8
System 5, control system 5 by fault diagnosis and error compensation, avoid printhead because of nozzle useless and drain spray or what is do not sprayed show
The print quality problem as caused by, effectively increases printhead injection reliability.
The above-mentioned 3D printing head of the utility model, equipped with main row's printhead 3 and auxiliary row's printhead 4, normal 3D printing work
In work, printed based on main row's printhead 3, in print procedure on-Line Monitor Device 2 and in line scanning device 8 to printhead
Nozzle parameter and print pattern carry out online timely monitor, to main row's printhead because failure drain spray penetrate printing position pass through it is auxiliary
The row's of helping printhead 4 compensates printing, to ensure the continuity of print pattern and integrality.
Embodiment 2
The present embodiment is using the above-mentioned method that there is the 3D printing head for monitoring compensation function to carry out online compensation printing, bag
Include such as the next stage：
First stage：Printing drive module controls main row's printhead 3 to carry out jet printing by the print pattern of setting；
Second stage：Checkout and diagnosis module by line scanning device 8 and on-Line Monitor Device 2 to main row's printhead 3
Print pattern and nozzle parameter are detected in real time, and by testing result and transmitting fault information to compensating module；During this,
On-Line Monitor Device realizes that nozzle driving condition is joined using integrated start-sensor by the method for Fusion
Count, the on-line monitoring of pressure wave and temperature characteristic parameter in runner, and viscosity, the density of fluid are estimated according to above-mentioned monitoring result
The injection drop characteristics parameters such as the size and speed of parameter and the drop of nozzle injection, by above-mentioned precompensation parameter and corresponding nozzle
Pressure wave, temperature characteristic parameter, driving and the theoretical parameter of typical case's ejection failure mapping model in theoretical driving parameter, runner
Carry out contrast and complete fault diagnosis, determine position and the failure diagnosis information of failure nozzle, and above- mentioned information is transferred to compensation
Module；
Phase III：Compensating module regulates and controls the related nozzle of auxiliary row's printhead 4 according to fault message online, and main row is beaten
The corresponding position of failure nozzle of print first 3 carries out injection compensation printing.Compensating module is according to the position of failure nozzle during this
And failure diagnosis information, the driving parameter of the auxiliary row's printhead 4 of regulation and control driving in due course is generated, aids in row's printhead 4 right with driving
The position of the main injection of row's printhead 3 failure compensates printing.
The 3D printing online compensation Method of printing of the utility model, the timely monitor that control system passes through on-Line Monitor Device
And feedback, the fault message and abort situation of main row's printhead 3 are diagnosed, and drive beating main row for auxiliary row's printhead 4 in due course
The corresponding position of failure nozzle of print head compensates printing, to ensure the quality of 3D printing, improves the reliability of printhead.
Claims (5)
1. a kind of 3D printing head with monitoring compensation function, including compound mounting bracket, the compound mounting bracket are equipped with
Installing plate, it is characterised in that the installing plate is equipped with main row's printhead and auxiliary row's printhead, main row's printhead and auxiliary
The row's of helping printhead is connected to the on-Line Monitor Device for detecting each printhead nozzle parameter, main row's printhead and auxiliary
Installing plate between the row's of helping printhead is equipped with scanning window, and the scanning window is used to scan main row's printing in line scanning device
The print pattern of head, the print image for being used to scan main row's printhead in line scanning device, the auxiliary row printhead are used
Jet printing is compensated in the drain spray position to main row's printhead.
2. the 3D printing head with monitoring compensation function according to claim 1, it is characterised in that main row's printhead
Include the print units of some array arrangements respectively with auxiliary row's printhead, main row's printhead is along print head row into direction position
In the front of auxiliary row's printhead.
3. the 3D printing head with monitoring compensation function according to claim 1, it is characterised in that main row's printhead
Include the two or more rows of front and rear parallel arrangement, and each print unit between adjacent row is staggered.
4. the 3D printing head with monitoring compensation function according to claim 1, it is characterised in that main row's printing
Head, auxiliary are arranged printhead, on-Line Monitor Device and are connected in line scanning device with control system, the 3D printing head print job
When, the main row's printhead of priority acccess control carries out print job, and auxiliary row's printhead is according to on-Line Monitor Device and online scanning
The testing result of device compensates the drain spray position of main row's printhead printing, and the control system includes print module, inspection
Survey diagnostic module and compensating module.
5. the 3D printing head with monitoring compensation function according to claim 4, it is characterised in that the print module is used
Printed in driving main row's printhead by the print pattern of setting；The checkout and diagnosis module is used to control on-Line Monitor Device
The print result and nozzle parameter of main row's printhead are detected in real time with line scanning device, and draw testing result and event
Barrier information is transmitted to compensating module；The compensating module regulates and controls auxiliary row's printhead according to fault message online, and main row is printed
The corresponding position of failure nozzle of head carries out injection compensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720620064.0U CN207255160U (en) | 2017-05-31 | 2017-05-31 | A kind of 3D printing head with monitoring compensation function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720620064.0U CN207255160U (en) | 2017-05-31 | 2017-05-31 | A kind of 3D printing head with monitoring compensation function |
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| CN207255160U true CN207255160U (en) | 2018-04-20 |
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| CN201720620064.0U Active CN207255160U (en) | 2017-05-31 | 2017-05-31 | A kind of 3D printing head with monitoring compensation function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971424A (en) * | 2017-05-31 | 2018-12-11 | 宁夏共享模具有限公司 | The method of 3D printing head and online compensation printing with monitoring compensation function |
| CN110757957A (en) * | 2018-11-14 | 2020-02-07 | 肇庆皈一智能科技有限公司 | OLED ink-jet printing method and device |
| CN113996757A (en) * | 2021-12-06 | 2022-02-01 | 河北工业大学 | Real-time sensing and intelligent monitoring system for 3D printing sand mold |
-
2017
- 2017-05-31 CN CN201720620064.0U patent/CN207255160U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971424A (en) * | 2017-05-31 | 2018-12-11 | 宁夏共享模具有限公司 | The method of 3D printing head and online compensation printing with monitoring compensation function |
| CN110757957A (en) * | 2018-11-14 | 2020-02-07 | 肇庆皈一智能科技有限公司 | OLED ink-jet printing method and device |
| CN113996757A (en) * | 2021-12-06 | 2022-02-01 | 河北工业大学 | Real-time sensing and intelligent monitoring system for 3D printing sand mold |
| CN113996757B (en) * | 2021-12-06 | 2022-12-13 | 河北工业大学 | Real-time sensing and intelligent monitoring system for 3D printing sand mold |
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Address after: 750000 the Ningxia Hui Autonomous Region Yinchuan economic and Technological Development Zone ningshuo South Street No. 298 Patentee after: Shared Intelligent Equipment Co., Ltd. Address before: 750000 the Ningxia Hui Autonomous Region Yinchuan economic and Technological Development Zone ningshuo South Street No. 298 Patentee before: Ningxia Kocel Pattern Co., Ltd. |