CN115384189B - Device and method for observing and counting drop points of ink drops of spray head - Google Patents
Device and method for observing and counting drop points of ink drops of spray head Download PDFInfo
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- CN115384189B CN115384189B CN202211330681.9A CN202211330681A CN115384189B CN 115384189 B CN115384189 B CN 115384189B CN 202211330681 A CN202211330681 A CN 202211330681A CN 115384189 B CN115384189 B CN 115384189B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000007921 spray Substances 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 128
- 238000001179 sorption measurement Methods 0.000 claims abstract description 49
- 238000004140 cleaning Methods 0.000 claims abstract description 42
- 238000012360 testing method Methods 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000007639 printing Methods 0.000 claims description 55
- 238000005507 spraying Methods 0.000 claims description 25
- 230000033001 locomotion Effects 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000007641 inkjet printing Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 6
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
- B41J2029/3935—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns by means of printed test patterns
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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Abstract
The invention relates to the technical field of ink-jet printing performance detection, and discloses a device and a method for observing and counting drop points of ink drops of a spray head. The device for observing and counting the drop points of the ink drops of the spray head comprises: the device comprises a substrate, a conveying device, a detection device and a cleaning device, wherein the substrate is provided with a test pattern for recording the position of an ink drop point; the conveying device comprises a driving mechanism, a first adsorption platform, a second adsorption platform and a conveying structure connected end to end, the conveying structure is arranged on the driving mechanism, the conveying structure is driven by the driving mechanism to move, the substrate is arranged on the conveying structure, the first adsorption platform and the second adsorption platform are arranged on one side, back to the substrate, of the conveying structure, and the first adsorption platform and the second adsorption platform are used for adsorbing and fixing the substrate. The scheme has the advantages that under the condition that the minimum substrate is not replaced for a long time, the drop point data of the ink drops are collected for a long time, and the performance of the sprayer is evaluated.
Description
Technical Field
The invention relates to the technical field of ink-jet printing performance detection, in particular to a device and a method for observing and counting drop points of ink drops of a spray head.
Background
Inkjet printing, as a non-contact patterning technology, can directly pattern ink droplets at designated positions on a substrate by jetting, has the advantages of high material utilization rate and no limitation of equipment and large-size fine metal masks, is favorable for realizing printing of large-size patterns, and is particularly suitable for preparing large-size oled display devices. In the printing process, the performances of the printing nozzle, such as stability, positioning accuracy and the like, greatly influence the size of the printed ink drop, the drop positioning of the ink drop and other key factors in ink-jet printing production and manufacture, and the drop positioning accuracy of the ink drop directly influences the final display effect of the display device. If the performance of the nozzle is not good, the quality of produced oled component products is seriously affected, so that the detection and adjustment of the ink printing nozzle before production become very important steps to ensure that the performance of the ink printing nozzle meets the production requirements.
In the prior art, the method for testing the performance of the spray head mainly comprises the steps of loading a spray head platform to be tested, printing on a substrate in a small scale, observing and counting the drop points of ink drops after printing, wherein the number of samples counted by the test mode is small, and the positioning accuracy of the spray head in a long-time working state cannot be tested.
Disclosure of Invention
The invention mainly aims to provide a device and a method for observing and counting ink drop points of a spray head, and aims to solve the technical problems that a test device needs to frequently replace a substrate and cannot stably test the performance of the spray head for a long time.
In order to achieve the above object, the present invention provides a device for observing and counting drop points of ink droplets of a nozzle, comprising: the substrate is provided with a test pattern for recording the position of a drop point of an ink droplet; the conveying device comprises a driving mechanism, a first adsorption platform, a second adsorption platform and a conveying structure connected end to end, the conveying structure is arranged on the driving mechanism, the conveying structure is driven by the driving mechanism to move, the substrate is arranged on the conveying structure, the first adsorption platform and the second adsorption platform are arranged on one side, opposite to the substrate, of the conveying structure, and the first adsorption platform and the second adsorption platform are used for adsorbing and fixing the substrate; the detection device comprises a supporting beam, a nozzle printing module and a data acquisition module, wherein the supporting beam is arranged above the conveying structure, the nozzle printing module and the data acquisition module are movably arranged on the supporting beam, the position of the nozzle printing module corresponds to the position of the first adsorption platform, the position of the data acquisition module corresponds to the position of the second adsorption platform, the nozzle printing module is used for printing ink on the substrate, and the data acquisition module is used for acquiring the position information of ink drop falling points on the substrate; the cleaning device is arranged on one side of the conveying structure, on which the substrate is arranged; the nozzle printing module, the data acquisition module and the cleaning device are sequentially arranged according to the moving direction of the conveying structure.
Optionally, the cleaning device includes a spraying assembly and a cleaning assembly, the spraying assembly is disposed at a next station of the data acquisition module, the cleaning assembly is disposed at a next station of the spraying assembly, the spraying assembly is used for spraying a solvent to clean the substrate, the cleaning assembly includes a dryer and/or an air knife, and the cleaning assembly is used for removing the solvent on the substrate after spraying.
Optionally, the conveying device further comprises a base, the driving mechanism comprises a driving wheel, the driving wheel is arranged at one end or two ends of the base, the conveying structure is sleeved on the driving wheel, and the driving wheel rotates to drive the conveying structure to move.
Optionally, the device for observing and counting the drop points of the ink droplets of the nozzle further comprises an installation platform, the detection device and the base are arranged on the installation platform, the base penetrates through the detection device, a channel is arranged on the installation platform corresponding to the position of the conveying structure, the substrate penetrates through the channel along with the movement of the conveying structure, and the cleaning device is arranged in the channel.
Optionally, the conveying structure includes an arc-shaped conveying portion and a linear conveying portion, two of the linear conveying portions are aligned in parallel, the two arc-shaped conveying portions are respectively disposed at two ends of the linear conveying portion to form the conveying structure with a waist-round shape, and the detecting device and the cleaning device are sequentially disposed on one side of the linear conveying portion according to a movement direction of the conveying structure.
Optionally, the detection device further comprises a first sliding table, the first sliding table is movably arranged on the supporting beam, the nozzle printing module is arranged on the first sliding table, and/or the data acquisition module is arranged on the first sliding table.
Optionally, a supporting beam includes a first supporting beam and a second supporting beam, a first supporting beam with a second supporting beam interval set up in the top of conveying structure, detection device still includes first slip table and second slip table, first slip table portable set up in on the first supporting beam, the second slip table portable set up in on the second supporting beam, the shower nozzle print module set up in on the first slip table, the data acquisition module set up in on the second slip table.
Optionally, the test pattern includes one or more of a circular ring shape, a grid shape and a square shape; and/or the substrate is glued to the transfer structure.
The invention also provides a method for observing and counting the drop points of the ink drops of the sprayer, which is applied to the equipment for observing and counting the drop points of the ink drops of the sprayer, and the using method of the equipment for observing and counting the drop points of the ink drops of the sprayer comprises the following steps:
controlling the conveying structure to drive the substrate to move to a working area of the first adsorption platform, and adsorbing and fixing the substrate on the conveying structure by the first adsorption platform;
controlling the spray head printing module to print a drop of ink in the test pattern on the substrate, and loosening the substrate after printing is finished;
controlling the transmission structure to drive the substrate to move to a working area of the data acquisition module, adsorbing and fixing the substrate by the second adsorption platform, controlling the data acquisition module to acquire pictures of the test patterns, and loosening the substrate after acquisition is completed;
and controlling the conveying structure to drive the substrate to a working area of the cleaning device, and controlling the cleaning device to remove ink drops on the substrate.
Optionally, a plurality of test patterns are arranged on the substrate;
controlling the spray head printing module to print a drop of ink in the test pattern on the substrate, and loosening the substrate after printing comprises the following steps:
after the nozzle printing module is controlled to drive ink into one test pattern, the first adsorption platform is controlled to drive the substrate to move, and the next test pattern on the substrate is aligned with the nozzle printing module;
and controlling the first adsorption platform to release the substrate until all the test patterns on the substrate are printed.
According to the technical scheme, the printed substrate is arranged on the conveying structure in an end-to-end connection mode, the nozzle printing module can continuously print ink drops on the substrate and uses the industrial camera on the data acquisition module to acquire the drop point position diagram of the ink drops, the spraying assembly on one side of the conveying structure can clean the printed substrate, and the cleaned substrate can be put into the printing test process again after residual liquid is removed by the cleaning assembly. The scheme has the advantages that under the condition that the minimum substrate is not replaced for a long time, the ink drop point data are collected for a long time, and the performance of the sprayer is evaluated.
Drawings
One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.
FIG. 1 is a schematic view of an overall structure of an embodiment of an apparatus for observing and counting the landing positions of ink droplets in a nozzle according to the present invention;
FIG. 2 is a schematic left-side view of an embodiment of an apparatus for observing and counting the landing positions of ink droplets in a nozzle according to the present invention;
FIG. 3 is a schematic top view of an apparatus for observing and counting the landing positions of ink droplets in a nozzle according to an embodiment of the present invention;
FIG. 4 is a schematic top view of an apparatus for observing and counting ink drop landing points of a nozzle according to an embodiment of the present invention;
FIG. 5 is a schematic top view of an apparatus for observing and counting the landing positions of ink droplets in a nozzle according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a substrate structure of an embodiment of an apparatus for observing and counting the landing positions of ink droplets in a nozzle according to the present invention;
FIG. 7 is a drop print distribution diagram of one embodiment of a drop placement observation and statistics apparatus for a printhead of the present invention;
FIG. 8 is a schematic flow chart of a method for observing and counting the drop points of ink droplets of a nozzle according to the present invention;
fig. 9 is a schematic flowchart of step S2 in fig. 8.
Wherein, 1, the ink drop point of the nozzle is observed and counted by the device; 2. a substrate; 21. testing the pattern; 22. an ink droplet; 3. a conveying device; 31. a drive mechanism; 311. a driving wheel; 32. a transfer structure; 321. an arc-shaped conveying part; 322. a linear transfer section; 33. a first adsorption platform; 34. a second adsorption stage; 35. a base; 4. a detection device; 41. a support beam; 411. a first support beam; 412. a second support beam; 42. a first sliding table; 43. a second sliding table; 44. a nozzle printing module; 45. a data acquisition module; 5. a cleaning device; 51. a spray assembly; 52. a clearing assembly; 6. mounting a platform; 61. a channel.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only. In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless stated otherwise, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and any variations thereof, are intended to cover a non-exclusive inclusion, which may have the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or combinations thereof.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 to 2, the present invention provides a device 1 for observing and counting the drop point of ink droplets on a nozzle, wherein the device 1 for observing and counting the drop point of ink droplets on the nozzle comprises: a substrate 2, wherein the substrate 2 is provided with a test pattern 21 for recording the position of the landing point of an ink drop 22; the conveying device 3, the conveying device 3 includes the driving mechanism 31, the first adsorption platform 33, the second adsorption platform 34 and the end-to-end connected conveying structure 32, the conveying structure 32 is arranged on the driving mechanism 31, the driving mechanism 31 drives the conveying structure 32 to move, the substrate 2 is arranged on the conveying structure 32, the first adsorption platform 33 and the second adsorption platform 34 are arranged on one side of the conveying structure 32, which is back to the substrate 2, and the first adsorption platform 33 and the second adsorption platform 34 are used for adsorbing and fixing the substrate 2; the detection device 4, the detection device 4 includes a supporting beam 41, a nozzle printing module 44 and a data acquisition module 45, the supporting beam 41 is disposed above the conveying structure 32, the nozzle printing module 44 and the data acquisition module 45 are movably disposed on the supporting beam 41, the position of the nozzle printing module 44 corresponds to the position of the first adsorption platform 33, the position of the data acquisition module 45 corresponds to the position of the second adsorption platform 34, the nozzle printing module 44 is used for printing ink on the substrate 2, and the data acquisition module 45 is used for acquiring the position information of the landing point of the ink drop 22 on the substrate 2; a cleaning device 5, wherein the cleaning device 5 is arranged at one side of the conveying structure 32, which is provided with the substrate 2; the head printing module 44, the data acquisition module 45 and the cleaning device 5 are arranged in sequence according to the direction of movement of the transport structure 32.
In the technical scheme provided by the invention, the printed substrate 2 is arranged on the conveying structures 32 which are connected end to end, the nozzle printing module 44 can continuously print ink drops 22 on the substrate 2 and use the industrial camera on the data acquisition module 45 to acquire the drop point position diagram of the ink drops 22, the spraying component 51 on one side of the conveying structure 32 can clean the printed substrate 2, and the cleaned substrate 2 can be put into the printing test process again after residual liquid is removed by the cleaning component 52. The scheme has the advantages that under the condition that the minimum substrate 2 is not replaced for a long time, the drop point data of the ink drop 22 is collected for a long time, and the performance of the sprayer is evaluated.
Referring to fig. 1 to 2, in the present embodiment, the cleaning device 5 includes a spraying assembly 51 and a cleaning assembly 52, the spraying assembly 51 is disposed at a next station of the data acquisition module 45, the cleaning assembly 52 is disposed at a next station of the spraying assembly 51, the spraying assembly 51 is used for spraying a solvent to clean the substrate 2, the cleaning assembly 52 includes a dryer and/or an air knife, and the cleaning assembly 52 is used for removing the solvent on the substrate 2 after spraying. The low-pressure spraying assembly 51 can be selected for spraying a solution containing an oxidant on the substrate 2, the ink drops 22 printed on the substrate 2 are dissolved in the solution containing the oxidant, the substrate 2 cleaned by the solution moves to the area of the conveying structure 32 acted by the cleaning assembly 52 along with the movement of the conveying structure 32, and the solution attached to the substrate 2 is dried and removed by hot air blown out by a dryer or removed by high-pressure air blown out by an air knife device.
Referring to fig. 1 to fig. 2, in the present embodiment, the conveying device 3 further includes a base 35, the driving mechanism 31 includes a driving wheel 311, the driving wheel 311 is disposed at one end or both ends of the base 35, the conveying structure 32 is sleeved on the driving wheel 311, and the driving wheel 311 rotates to drive the conveying structure 32 to move. The conveying structure 32 is a strip-shaped whole, and can be a double-sided circulating conveyor belt, and the substrate 2 moves circularly on the upper and lower sides of the conveying structure 32 along with the conveyor belt. The main body of the conveying structure 32 is made of a material with a small elastic modulus but a light weight (such as a high temperature resistant polyester fiber product), and a certain surplus conveying structure 32 material is provided between the minimum substrates 2 on the two conveying structures 32, so that the substrates 2 can have a certain movement capability after being adsorbed by the first adsorption platform 33 or the second adsorption platform 34. The substrate 2 moves along with the transmission structure 32, and when the substrate 2 moves above the transmission structure 32, the substrate 2 sequentially passes through the working areas of the spray head printing module 44 and the data acquisition module 45 to perform the processes of printing the substrate 2 and collecting data; when the substrate 2 moves under the conveying structure 32, the substrate 2 passes through the working areas of the spraying assembly 51 and the removing assembly 52 in sequence to carry out the processes of spraying the substrate 2 and removing the solution, the design not only makes full use of the space of the conveying structure 32, but also reduces the operations of replacing the substrate 2 and the like through the circulating detection process.
Referring to fig. 1 to 2, in the embodiment, the apparatus 1 for observing and counting the landing points of ink droplets of a nozzle further includes a mounting platform 6, the detecting device 4 and the base 35 are disposed on the mounting platform 6, the base 35 passes through the detecting device 4, a channel 61 is disposed on the mounting platform 6 at a position corresponding to the conveying structure 32, the substrate 2 passes through the channel 61 along with the movement of the conveying structure 32, and the cleaning device 5 is disposed in the channel 61. The mounting platform 6 provides a space for installation and operation of the conveying structure 32, the driving mechanism 31 and the cleaning device 5, and meanwhile, power supply equipment and control equipment are also arranged inside the mounting platform 6 and used for driving and controlling the whole nozzle ink drop point observation and statistics equipment 1. When the substrate 2 moves under the transfer structure 32, the shower assembly 51 and the cleaning assembly 52 disposed in the channel 61 start to operate, removing traces of the ink droplets 22 on the substrate 2, and putting the substrate 2 back into inspection. The mounting platform 6 integrates the automation equipment of the whole system, adjusts the mounting positions of all parts in the nozzle ink drop point observation and statistics equipment 1, and improves the running stability of the whole system.
Referring to fig. 3, in the present embodiment, the supporting beam 41 includes a first supporting beam 411 and a second supporting beam 412, the first supporting beam 411 and the second supporting beam 412 are disposed above the conveying structure 32 at intervals, the detecting device 4 further includes a first sliding table 42 and a second sliding table 43, the first sliding table 42 is movably disposed on the first supporting beam 411, the second sliding table 43 is movably disposed on the second supporting beam 412, the nozzle printing module 44 is disposed on the first sliding table 42, and the data collecting module 45 is disposed on the second sliding table 43. The nozzle printing module 44 comprises a nozzle of an ink-jet printer, the data acquisition module 45 is a machine vision system consisting of an industrial camera, a lens and a light source, and the data acquisition module 45 can shoot one or more substrates 2 at one time and position the ink drop 22 on each test pattern 21 by using a vision software algorithm. The shower nozzle print module 44 and the data acquisition module 45 are separately arranged on the first sliding table 42 and the second sliding table 43, so that the stability of the whole system is improved, and the maintenance work in the later stage of the equipment is facilitated.
Referring to fig. 4, in an embodiment, the detecting device 4 further includes a first sliding table 42, the first sliding table 42 is movably disposed on the supporting beam 41, the nozzle printing module 44 is disposed on the first sliding table 42, and/or the data collecting module 45 is disposed on the first sliding table 42. Data acquisition module 45 and shower nozzle print module 44 set up simultaneously on first slip table 42, and industry camera, camera lens and coaxial light source constitute data acquisition module 45, and data acquisition module 45 and shower nozzle print module 44 drive synchronous motion through first slip table 42, and shower nozzle print module 44 is once printed, and data acquisition module 45 just gathers an image, discerns the position of ink droplet 22 on test figure 21. Its design has the precision height, stability advantage such as strong, and has reduced the installation space of whole equipment.
Referring to fig. 5, in an embodiment, the conveying structure 32 includes an arc-shaped conveying portion 321 and a linear conveying portion 322, the two linear conveying portions 322 are aligned in parallel, the two arc-shaped conveying portions 321 are respectively disposed at two ends of the linear conveying portion 322 to form the conveying structure 32 with a waist-round shape, and the detecting device 4 and the cleaning device 5 are sequentially disposed at one side of the linear conveying portion 322 according to a moving direction of the conveying structure 32. All the substrates 2 do not need to be circulated to the lower part of the conveying structure 32, the substrates 2 can not easily fall off from the conveying structure 32 due to the influence of gravity, the space of the conveying device 3 in the vertical direction is saved, and the installation difficulty of the spraying assembly 51 and the cleaning assembly 52 is reduced.
Referring to fig. 1 and fig. 6, in the present embodiment, the test pattern 21 includes one or more of a circular ring shape, a grid shape, and a square shape; the substrate 2 is glued to the transfer structure 32. The pattern on the smallest substrate 2 on the transport structure 32 is shown divided into a number of small pieces, enlarged in a small area, over which the circular test pattern 21 is shown, and a positioning system on the head module ensures, by precise positioning, that the ink drops 22 are ejected towards the center of the pattern. The ink drop 22 is scattered near the center, and the distance from the center can be confirmed by image recognition based on the captured image, and the accuracy of the landing point of the head can be evaluated by statistical data. The traditional scheme is on a piece of paper or a base plate, after having printed, is shot by the camera again and is counted the test, and this equipment prints a point at every turn on a target, therefore the ink can not be pasted into a slice, can record the position of the point that falls every time, is more convenient for carry out shower nozzle performance analysis. Different patterns may be provided on the substrate 2 depending on the characteristics of the ink and the performance of the ink jet printer, for example: a ring or grid test pattern 21 for better test results. The substrates 2 are glued to the conveyor structure 32 and can be replaced when a minimum substrate 2 on the track on the conveyor structure 32 is damaged, which further extends the service life of the entire track.
Referring to fig. 1, fig. 8 and fig. 9, the present invention further provides a method for observing and counting the drop point of a nozzle ink drop, which is applied to the apparatus 1 for observing and counting the drop point of the nozzle ink drop, and the method for using the apparatus 1 for observing and counting the drop point of the nozzle ink drop comprises the steps of:
s1, controlling a conveying structure 32 to drive a substrate 2 to move to a working area of a first adsorption platform 33, and adsorbing and fixing the substrate 2 on the conveying structure 32 by the first adsorption platform 33;
s2, controlling the spray head printing module 44 to print a drop of ink in the test pattern 21 on the substrate 2, and loosening the substrate 2 after printing is finished;
s3, controlling the conveying structure 32 to drive the substrate 2 to move to a working area of the data acquisition module 45, adsorbing and fixing the substrate 2 by the second adsorption platform 34, controlling the data acquisition module 45 to acquire pictures of the test pattern 21, and loosening the substrate 2 after the acquisition is finished;
and S4, controlling the conveying structure 32 to drive the substrate 2 to a working area of the cleaning device 5, and controlling the cleaning device 5 to remove the ink droplets 22 on the substrate 2.
Optionally, the substrate 2 is provided with a plurality of test patterns 21;
controlling the nozzle print module 44 to print a drop of ink in the test pattern 21 on the substrate 2, and releasing the substrate 2 after printing is completed comprises:
s21, controlling the nozzle printing module 44 to drive ink into a test pattern 21, controlling the first adsorption platform 33 to drive the substrate 2 to move, and aligning the next test pattern 21 on the substrate 2 with the nozzle printing module 44;
and S22, controlling the first adsorption platform 33 to release the substrate 2 until all the test patterns 21 on the substrate 2 are printed.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a shower nozzle ink droplet landing observation and statistics equipment which characterized in that, shower nozzle ink droplet landing observation and statistics equipment includes:
the substrate is provided with a test pattern for recording the position of a drop point of an ink droplet;
the conveying device comprises a driving mechanism, a first adsorption platform, a second adsorption platform and a conveying structure connected end to end, the conveying structure is arranged on the driving mechanism, the conveying structure is driven by the driving mechanism to move, the substrate is arranged on the conveying structure, the first adsorption platform and the second adsorption platform are arranged on one side, opposite to the substrate, of the conveying structure, and the first adsorption platform and the second adsorption platform are used for adsorbing and fixing the substrate;
the detection device comprises a supporting beam, a sprayer printing module and a data acquisition module, wherein the supporting beam is arranged above the conveying structure, the sprayer printing module and the data acquisition module are movably arranged on the supporting beam, the position of the sprayer printing module corresponds to the position of the first adsorption platform, the position of the data acquisition module corresponds to the position of the second adsorption platform, the sprayer printing module is used for printing ink on the substrate, and the data acquisition module is used for acquiring the position information of ink drop falling points on the substrate;
the cleaning device is arranged on one side of the conveying structure, which is provided with the substrate;
the nozzle printing module, the data acquisition module and the cleaning device are sequentially arranged according to the movement direction of the conveying structure;
the detection device further comprises a first sliding table, the first sliding table is movably arranged on the supporting beam, the nozzle printing module is arranged on the first sliding table, and/or the data acquisition module is arranged on the first sliding table;
the test pattern comprises one or more of a circular ring shape, a grid shape and a square shape;
and/or the substrate is glued to the transfer structure.
2. The observation and statistics equipment for drop points of ink droplets in the nozzle according to claim 1, wherein the cleaning device comprises a spraying assembly and a cleaning assembly, the spraying assembly is arranged at a next station of the data acquisition module, the cleaning assembly is arranged at a next station of the spraying assembly, the spraying assembly is used for spraying solvent to clean the substrate, the cleaning assembly comprises a dryer and/or an air knife, and the cleaning assembly is used for removing the solvent on the substrate after spraying.
3. The apparatus for observing and counting the landing points of ink droplets in a nozzle according to claim 1 or 2, wherein the conveying device further comprises a base, the driving mechanism comprises a driving wheel, the driving wheel is disposed at one end or both ends of the base, the conveying structure is sleeved on the driving wheel, and the driving wheel rotates to drive the conveying structure to move.
4. The apparatus for observing and counting the landing positions of ink droplets on a nozzle as claimed in claim 3, wherein said apparatus further comprises a mounting platform, said detecting device and said base are disposed on said mounting platform, said base passes through said detecting device, a channel is disposed on said mounting platform at a position corresponding to said transporting structure, said substrate passes through said channel along with the movement of said transporting structure, and said cleaning device is disposed in said channel.
5. The observation and statistics equipment for ink drop points of the nozzle according to claim 1 or 2, wherein the conveying structure comprises an arc-shaped conveying part and a linear conveying part, the two linear conveying parts are arranged in parallel and aligned, the two arc-shaped conveying parts are respectively arranged at two ends of the linear conveying part to form the conveying structure with a waist-round shape, and the detection device and the cleaning device are sequentially arranged at one side of the linear conveying part according to the moving direction of the conveying structure.
6. The shower nozzle ink droplet landing point observation and statistics equipment of claim 1, characterized in that, the supporting beam includes first supporting beam and second supporting beam, first supporting beam and second supporting beam interval set up in the top of conveying the structure, detection device still includes the second slip table, first slip table portable set up in on the first supporting beam, the second slip table portable set up in on the second supporting beam, shower nozzle printing module set up in on the first slip table, the data acquisition module set up in on the second slip table.
7. A method for observing and counting the drop points of ink drops of a nozzle, which is applied to the device for observing and counting the drop points of the ink drops of the nozzle as claimed in any one of claims 1 to 6, and is characterized in that the method for observing and counting the drop points of the ink drops of the nozzle comprises the following steps:
controlling the conveying structure to drive the substrate to move to a working area of the first adsorption platform, and adsorbing and fixing the substrate on the conveying structure by the first adsorption platform;
controlling the spray head printing module to print a drop of ink in the test pattern on the substrate, and loosening the substrate after printing is finished;
controlling the transmission structure to drive the substrate to move to a working area of the data acquisition module, adsorbing and fixing the substrate by the second adsorption platform, controlling the data acquisition module to acquire pictures of the test patterns, and loosening the substrate after acquisition is completed;
and controlling the conveying structure to drive the substrate to a working area of the cleaning device, and controlling the cleaning device to remove ink drops on the substrate.
8. The method of claim 7, wherein a plurality of said test patterns are disposed on said substrate;
controlling the spray head printing module to print a drop of ink in the test pattern on the substrate, and loosening the substrate after printing comprises the following steps:
after the nozzle printing module is controlled to drive ink into one test pattern, the first adsorption platform is controlled to drive the substrate to move, and the next test pattern on the substrate is aligned with the nozzle printing module;
and controlling the first adsorption platform to release the substrate until all the test patterns on the substrate are printed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211330681.9A CN115384189B (en) | 2022-10-28 | 2022-10-28 | Device and method for observing and counting drop points of ink drops of spray head |
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| CN202211330681.9A CN115384189B (en) | 2022-10-28 | 2022-10-28 | Device and method for observing and counting drop points of ink drops of spray head |
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| CN115384189B true CN115384189B (en) | 2023-04-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20060038439A (en) * | 2003-07-10 | 2006-05-03 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Method and device for accurately positioning a pattern on a substrate |
| US9073374B1 (en) * | 2014-03-31 | 2015-07-07 | Xerox Corporation | System for detecting inoperative inkjets in three-dimensional object printing using a test pattern and electrical continuity probes |
| US9114652B1 (en) * | 2014-03-31 | 2015-08-25 | Xerox Corporation | System for detecting inoperative inkjets in printheads ejecting clear ink using heated thermal substrates |
| US9079440B1 (en) * | 2014-03-31 | 2015-07-14 | Xerox Corporation | System for detecting inoperative inkjets in printheads ejecting clear ink using a light transmitting substrate |
| US9162509B1 (en) * | 2014-03-31 | 2015-10-20 | Xerox Corporation | System for detecting inoperative inkjets in printheads ejecting clear ink using thermal substrates |
| US9302518B2 (en) * | 2014-03-31 | 2016-04-05 | Xerox Corporation | System for detecting inoperative inkjets in three-dimensional object printing using an optical sensor and reversible thermal substrates |
| DE102016117211A1 (en) * | 2016-09-13 | 2018-03-15 | Schmid Rhyner Ag | Method and device for ink-jet application on flat substrates |
| CN109708912B (en) * | 2019-02-19 | 2021-02-02 | 京东方科技集团股份有限公司 | Ink drop point testing device and preparation method thereof |
| CN110126467B (en) * | 2019-04-28 | 2021-06-11 | 华中科技大学 | Fused ink detection device and method suitable for large-area substrate printing |
| CN111397539B (en) * | 2020-03-28 | 2021-04-20 | 华中科技大学 | Multi-view visual detection system and method for ink-jet printing |
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