CN114683731B - Printing method, printing system and printing device - Google Patents
Printing method, printing system and printing device Download PDFInfo
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- CN114683731B CN114683731B CN202210202012.7A CN202210202012A CN114683731B CN 114683731 B CN114683731 B CN 114683731B CN 202210202012 A CN202210202012 A CN 202210202012A CN 114683731 B CN114683731 B CN 114683731B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet 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
- 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
- B41J2/07—Ink jet characterised by jet control
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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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- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Abstract
The embodiment of the application discloses a printing method, a printing system and printing equipment. The printing method provided by the embodiment of the application comprises the following steps: jetting a first printing material and a second printing material; respectively acquiring jet paths of the first printing material and the second printing material; obtaining the actual spacing between the first printing material and the second printing material drop on the printing equipment according to the jet paths of the first printing material and the second printing material; the actual pitch is compared with the set pitch to check the printing accuracy. And when the printing equipment is in a correction state, photographing and grabbing the ink jet path of the printing equipment, and obtaining the distance between the printed materials after ink jet. And comparing the actual ink jet spacing with the set spacing to obtain printing accuracy. This method does not require a virtual area to be printed on the substrate, and can save costs. In addition, the printing precision inspection is performed at the time of exchanging the substrates, so that the printing precision is inspected, normal printing is not affected, and the productivity is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a printing method, a printing system and printing equipment.
Background
An Organic Light-Emitting Diode (OLED) device has the characteristics of self-luminescence, wide viewing angle, high contrast, fast response speed, light and thin, and the like, and has become a main trend of display technology. The inkjet printing technology is focused on because of its precise alignment, no Fine Metal Mask (FMM) is needed, and the material utilization rate can reach 90%, which becomes the mainstream trend of the future large-size OLED device fabrication.
In the research and practice process of the prior art, the inventor of the application finds that stress is difficult to disperse when the flexible substrate is bent, and the requirement of the flexible substrate is difficult to meet. In an inkjet printing apparatus, in order to secure printing accuracy of each substrate, a bullet inspection dummy (dummy) area needs to be provided on the printing substrate. The coating condition of the dummy area is obtained through the camera, whether the precision of each printing nozzle is deviated or not is analyzed, and the precision of the corresponding printing nozzle is calibrated according to the deviation result, so that the problems of color mixing and the like caused by abnormal precision in the subsequent printing process are avoided. However, this inspection scheme requires additional printing, limiting throughput. In addition, the dummy area needs to be additionally manufactured on the substrate, and the cost is increased.
Disclosure of Invention
The embodiment of the application provides a printing method, a printing system and printing equipment, which can improve productivity and reduce cost.
The embodiment of the application provides a printing method, which is used for printing equipment, wherein the printing equipment comprises a bearing device, and when the printing equipment is in a working state, the bearing device moves at a set speed; the printing method comprises the following steps:
the same spray head sequentially sprays a first printing material and a second printing material;
acquiring jet paths of the first printing material and the second printing material;
obtaining a first distance between the first printing material and the second printing material according to the jet paths of the first printing material and the second printing material;
obtaining the falling speed of the first printing material according to the jet path of the first printing material;
obtaining the spraying time interval according to the first distance and the falling speed;
obtaining an actual distance between the first printing material and the second printing material according to the jet time interval and the set speed;
comparing the actual spacing with a set spacing;
and if the actual spacing is different from the set spacing, calibrating the printing equipment.
Optionally, in some embodiments of the present application, the acquiring the ejection paths of the first printing material and the second printing material includes the steps of:
capturing a plurality of images of the ejected first printing material and second printing material at set time intervals, the images including a first image and a second image; the first image comprises a jet path of a first printing material, and the second image comprises a jet path of the first printing material and a jet path of a second printing material.
Optionally, in some embodiments of the present application, the printing method is used for a printing apparatus, where the printing apparatus includes a carrying device, and the carrying device moves at a set speed when the printing apparatus is in a working state;
the step of obtaining the actual distance between the first printing material and the second printing material after the first printing material and the second printing material drop according to the jet paths of the first printing material and the second printing material comprises the following steps:
obtaining the jet time interval of the first printing material and the second printing material according to the jet paths of the first printing material and the second printing material;
and obtaining the actual distance between the first printing material and the second printing material according to the jet time interval and the set speed.
Optionally, in some embodiments of the present application, the obtaining the jet time interval of the first printing material and the second printing material according to the jet paths of the first printing material and the second printing material includes the following steps:
obtaining a first distance between the first printing material and the second printing material according to the jet paths of the first printing material and the second printing material;
obtaining the falling speed of the first printing material according to the jet path of the first printing material;
and obtaining the spraying time interval according to the first distance and the falling speed.
Optionally, in some embodiments of the present application, the obtaining the first distance between the first printing material and the second printing material according to the ejection paths of the first printing material and the second printing material includes the following steps:
and obtaining a first distance between the first printing material and the second printing material according to the second image.
Optionally, in some embodiments of the present application, the obtaining the dropping speed of the first printing material and the second printing material according to the jet path of the first printing material or the second printing material includes the following steps:
obtaining a second distance for the first printing material to move within the set time interval according to the first image and the second image;
and obtaining the falling speeds of the first printing material and the second printing material according to the second distance and the set time interval.
Optionally, in some embodiments of the present application, the calibrating the printing device if the actual pitch is different from the set pitch includes the following steps:
and if the actual spacing is different from the set spacing, adjusting the injection time interval so that the actual spacing is equal to the set spacing.
Accordingly, an embodiment of the present application further provides a printing system, including:
a jetting unit for jetting the first printing material and the second printing material;
an acquisition unit configured to acquire ejection paths of the first printing material and the second printing material, respectively;
a calculating unit for obtaining an actual distance between the first printing material and the second printing material after the first printing material and the second printing material drop according to the jet paths of the first printing material and the second printing material; the method specifically comprises the following steps: obtaining a first distance between the first printing material and the second printing material according to the jet paths of the first printing material and the second printing material; obtaining the falling speed of the first printing material according to the jet path of the first printing material; obtaining the spraying time interval according to the first distance and the falling speed; obtaining an actual distance between the first printing material and the second printing material according to the jet time interval and the set speed;
the comparison unit is used for comparing the actual spacing with a set spacing;
and the adjusting unit is used for adjusting the spraying time interval when the actual spacing is different from the set spacing so as to make the actual spacing equal to the set spacing and calibrating the printing equipment.
Accordingly, embodiments of the present application further provide a printing apparatus that corrects precision of the printing apparatus using the printing method according to any one of the above claims, the printing apparatus having a correction state and an operating state, the printing apparatus comprising:
a carrying device;
the accommodating device is arranged on one side of the bearing device;
the printing device is arranged above the bearing device, and is positioned above the accommodating device when the printing equipment is in the correction state, and is positioned above the bearing device when the printing equipment is in the working state;
the shooting device is positioned between the printing device and the bearing device and is arranged on one side of the containing device away from the bearing device.
The printing device comprises an ejecting unit, an acquiring unit, a calculating unit, a comparing unit and an adjusting unit;
the ejection unit is configured to eject the first printing material and the second printing material when the printing apparatus is in a correction state;
the acquisition unit is configured to acquire ejection paths of the first printing material and the second printing material;
the computing unit is configured to obtain an actual distance between the first printing material and the second printing material after the first printing material and the second printing material drop according to the jet paths of the first printing material and the second printing material; the method specifically comprises the following steps: obtaining a first distance between the first printing material and the second printing material according to the jet paths of the first printing material and the second printing material; obtaining the falling speed of the first printing material according to the jet path of the first printing material; obtaining the spraying time interval according to the first distance and the falling speed; obtaining an actual distance between the first printing material and the second printing material according to the jet time interval and the set speed;
the comparing unit is configured to compare the actual pitch with a set pitch;
the adjustment unit is configured to calibrate the printing apparatus when the actual pitch is different from the set pitch.
The embodiment of the application provides a printing method, a printing system and printing equipment. According to the printing method, the containing device and the shooting device are additionally arranged in the printing equipment, when the printing equipment is in the correction state, shooting and grabbing are carried out on the ink jet path of the printing equipment, and the distance between printing materials after ink jet is obtained. And comparing the actual ink jet spacing with the set spacing to obtain printing accuracy. This method does not require a virtual area to be printed on the substrate, and can save costs. In addition, the printing precision inspection is performed at the time of exchanging the substrates, so that the printing precision is inspected, normal printing is not affected, and the productivity is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a printing method according to an embodiment of the present application;
fig. 2 is a schematic structural view of a printing apparatus according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a first image and a second image in a printing method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a printing system according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application. In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The embodiment of the application provides an array substrate and a manufacturing method of the array substrate. The following will describe in detail. The following description of the embodiments is not intended to limit the preferred embodiments.
Please refer to fig. 1 and 2. Fig. 1 is a schematic diagram of steps of a printing method according to an embodiment of the present application. Fig. 2 is a schematic structural view of a printing apparatus according to an embodiment of the present application.
The printing apparatus 100 provided in the embodiment of the present application corrects the accuracy of the printing apparatus 100 using the printing method described above. The printing apparatus 100 has a correction state and an operation state. Shown in fig. 2 is a schematic diagram when the printing apparatus 100 is in a corrected state. The printing apparatus 100 includes a carrier device 101, a housing device 102, a printing device 103, and a photographing device 104. The accommodating device 102 is provided on the side of the carrying device 101. The printing device 103 is disposed above the carrier device 101. When the printing apparatus 100 is in the correction state, the printing device 103 is located above the housing device 102. When the printing apparatus 100 is in an operating state, the carriage 101 moves below the printing device 103. The photographing device 104 is located between the printing device 103 and the carrying device 101, and is disposed at a side of the accommodating device 102 away from the carrying device 101.
Optionally, the carrying device 101 is a base station of the printing apparatus, and is used for carrying a substrate to be printed. When the printing apparatus 100 is in a working state, the carrying device 101 moves below the printing device 103, and drives the carried substrate to move together, so that the printing device 103 ejects the material to be printed.
Optionally, the holding device 102 includes a container 1021 and an output line 1022. The liquid container 1021 is used for containing the first printing material and the second printing material. The output line 1022 communicates with the liquid container 1021 for discharging the first printing material and the second printing material. The accommodating device 102 is fixed to one side of the carrier 101, and the accommodating device 102 moves together with the carrier 101 when the carrier 101 moves.
Optionally, the printing device 103 comprises a plurality of nozzles (nozzles). The imaging device 104 may be one movable camera or a plurality of cameras provided corresponding to the nozzles. When the photographing device is a movable camera, the printing material jetting track jetted by one nozzle is grabbed each time. When the photographing device is a plurality of cameras arranged corresponding to the nozzles, the ejected printing material ejecting paths can be collected at the same time.
The printing method provided by the embodiment of the application is used for the printing device 100. Specifically, the printing method comprises the following steps:
specifically, while the printing apparatus 100 is in the correction state, the accuracy check of the printing apparatus 100 is performed.
Step 11, sequentially spraying the first printing material and the second printing material.
When the printing apparatus 100 is in the correction state, the printing apparatus may be in the initial state at this time, printing of one substrate is completed, and a new substrate enters the exchanging operation. The carrier 101 is at the origin position at this time. The housing means 102 is located below the printing means 103. The printing apparatus 103 is controlled to eject the first printing material and the second printing material at the frequency at the time of production.
Optionally, as previously described, the printing device 103 comprises a plurality of nozzles. The first printing material and the second printing material are sequentially ejected at the frequency of the same nozzle.
The printing apparatus 103 may sequentially eject a plurality of sets of printing materials at the frequency of production. The first printing material refers to a printing material ejected first, and the second printing material refers to a printing material ejected later. The printing apparatus 103 is not limited to ejecting only two drops of printing material. It will be appreciated that the accuracy check of the printing apparatus 100 may also be achieved by ejecting only two drops of printing material. The result of the inspection can be more accurate by not ejecting too many groups.
Step 12, acquiring jet paths of the first printing material and the second printing material.
Specifically, the photographing device 104 photographs or photographs the jet paths of the first printing material and the second printing material in the air. The first printing material and the second printing material drop into the liquid container 1021 flow out through the output pipe 1022. The first printing material and the second printing material can be recovered, avoiding waste of printing material generated by inspection of the printing apparatus 100.
Optionally, referring to fig. 3, fig. 3 is a schematic diagram of a first image and a second image in the printing method according to the embodiment of the present application. Acquiring the jet paths of the first printing material and the second printing material, comprising the following steps:
step 12A, capturing a plurality of images of the ejected first printing material and second printing material at set time intervals, the images including a first image P1 and a second image P2. The first image P1 includes a jet path of the first printing material, and the second image P2 includes a jet path of the first printing material and a jet path of the second printing material.
As described above, the first printing material refers to a printing material ejected first, and the second printing material refers to a printing material ejected later. Thus, the first image P1 described in the embodiment of the present application may refer to an image including a printing material ejection path that is ejected first, and the second image P2 may refer to an image including two printing material ejection paths that are ejected adjacently. And is not limited to representing the first image P1 as an image having only one printing material ejection path. That is, the first image P1 may be an image including two or more printing material ejection paths. The second image P2 may include three or more ejection paths of the printing material at the same time.
The set time interval of photographing or image capturing can be adaptively adjusted according to the production frequency of the ejected printing material. It is desirable that the first image P1 and the second image P2 captured in the set time interval are an image including the first printing material ejection path and an image including both the first printing material and the second printing material ejection path, respectively.
And step 13, obtaining the actual distance between the first printing material and the second printing material according to the ejection paths of the first printing material and the second printing material after the first printing material and the second printing material drop.
Optionally, as previously described, the printing apparatus 100 includes a carrier 101. When the printing apparatus 100 is in an operating state, the carriage 101 moves at a set speed V1. Obtaining the actual distance between the first printing material and the second printing material after the first printing material and the second printing material drop according to the jet path of the first printing material and the second printing material, comprising the following steps:
step 131, obtaining the jet time interval T1 of the first printing material and the second printing material according to the jet paths of the first printing material and the second printing material.
Specifically, the step of obtaining the injection time interval T1 includes:
step 1311, obtaining a first distance of the first printed material and the second printed material according to the jetting paths of the first printed material and the second printed material.
Specifically, referring to fig. 3 in combination, fig. 3 is a schematic diagram of a first image and a second image in the printing method according to the embodiment of the present application. A first distance D1 between the first printed material and the second printed material is obtained from the second image P2. As shown in fig. 3, the second image P2 includes the ejection paths of the first printing material and the second printing material. Therefore, according to the information of the second image P2, the first distance D1 between the first printing material and the second printing material can be obtained by software measurement and operation.
Step 1312, obtaining the falling speed of the first printing material according to the spraying path of the first printing material.
Alternatively, the falling speed of the second printing material may also be obtained from the ejection path of the second printing material. Since the falling speeds of the first printing material and the second printing material are the same, both the falling speeds of the first printing material and the second printing material can be obtained.
Specifically, the step of obtaining the falling speeds of the first printing material and the second printing material includes:
step 1312A obtains a second distance for the first printed material to move within the set time interval based on the first image and the second image.
Please continue to refer to fig. 3 in combination. The ejection paths of the first printing material are grasped in both the first image P1 and the second image P2. Therefore, the first image P1 and the second image P2 can be compared by software to obtain the distance of movement of the first printing material within the set time interval (i.e., photographing time interval). That is, the second distance D2 can be obtained by the first image P1 and the second image P2.
Step 1312B, obtaining the falling speeds of the first printing material and the second printing material according to the first distance and the set time interval.
The distance between the printing apparatus 103 and the accommodating apparatus 102 is very short. Therefore, the falling process of the printing material can be regarded as uniform. According to the calculation formula of the speed: v=s/T. The falling speeds V2 of the first printing material and the second printing material can be obtained from the second distance D2 by which the first printing material moves and the set time interval (set to T1). I.e. v2=d2/T1.
Step 1313, obtaining a spraying time interval according to the first distance and the falling speed.
Also according to the calculation formula of the speed: v=s/T. The first printing material and second printing material ejection time interval (set to T2) is obtained from the first distance D1 and the falling speed V2. I.e. t2=d1/V2.
Step 132, obtaining the actual spacing S1 between the first printing material and the second printing material according to the ejection time interval and the set speed.
Specifically, according to the calculation formula of the speed: v=s/T. And obtaining the actual spacing S1 between the first printing material and the second printing material after the first printing material and the second printing material drop according to the jet time interval T2 and the set speed V1. That is, s1=v1×t2.
And 14, comparing the actual spacing with the set spacing.
And step 15, calibrating the printing equipment if the actual spacing is different from the set spacing.
Specifically, if the actual pitch is different from the set pitch, the ejection time interval T2 is adjusted so that the actual pitch is equal to the set pitch, and the printing apparatus 100 is calibrated. Further, the printing apparatus 103 includes a plurality of heads. The purpose of printing precision calibration is achieved by adjusting the ink-jet time of the nozzle with deviation.
The steps 11 to 14 may be repeated to obtain a plurality of actual pitch values, so as to achieve more accurate printing accuracy inspection and calibration.
The embodiment of the application provides a printing method and printing equipment. By adding the holding device 102 and the photographing device 104 to the printing apparatus 100, when the printing apparatus 100 is in the correction state, photographing and grabbing are performed on the ink ejection path of the printing apparatus 100, and the pitch of the printed material after the ink ejection is obtained. And comparing the actual ink jet spacing with the set spacing to obtain printing accuracy. This method does not require a virtual area to be printed on the substrate, and can save costs. In addition, the printing precision inspection is performed at the time of exchanging the substrates, so that the printing precision is inspected, normal printing is not affected, and the productivity is improved.
Accordingly, embodiments of the present application also provide a printing system 10. Referring to fig. 4, fig. 4 is a schematic structural diagram of a printing system according to an embodiment of the present application. The printing system 10 includes an ejection unit 10a, an acquisition unit 10b, a calculation unit 10c, and a comparison unit 10d. The ejecting unit 10a is for ejecting the first printing material and the second printing material. The acquisition unit 10b is configured to acquire ejection paths of the first printing material and the second printing material, respectively. The calculation unit 10c is configured to obtain the actual pitches of the drops of the first printing material and the second printing material on the printing apparatus from the ejection paths of the first printing material and the second printing material. The comparing unit 10d is for comparing the actual pitch with the set pitch to check the printing accuracy.
The printing apparatus includes an ejection unit 10a, an acquisition unit 10b, a calculation unit 10c, a comparison unit 10d, and an adjustment unit 10e of the printing system. The ejection unit 10a is configured to eject the first printing material and the second printing material when the printing apparatus is in the correction state. The acquisition unit 10b is configured to acquire ejection paths of the first printing material and the second printing material. The calculation unit 10c is configured to obtain the actual spacing between the first printing material and the second printing material after the first printing material and the second printing material drop from the ejection paths of the first printing material and the second printing material. The comparing unit 10d is configured to compare the actual pitch with the set pitch. The adjustment unit 10e is configured to calibrate the printing apparatus when the actual pitch is different from the set pitch.
Specifically, the ejection unit 10a can control the ink ejection frequency of the ejection head in the printing device in the printing apparatus. The acquisition unit 10b captures the ejection paths of the first printing material and the second printing material after photographing by the photographing device in the printing apparatus. The calculation unit 10c calculates the actual pitches of the drops of the first printing material and the second printing material on the printing apparatus by the formula according to the ejection paths of the first printing material and the second printing material. The comparing unit 10d obtains the actual pitch obtained by the calculating unit 10c and compares the actual pitch with the set pitch set by the printing system, thereby obtaining the printing precision of the printing device. The adjusting unit 10e is configured to adjust the ejection time interval so that the actual pitch is equal to the set pitch when the actual pitch is different from the set pitch, and calibrate the printing apparatus. The adjusting unit 10e obtains the comparison result of the comparing unit 10d, and adjusts the frequency of the nozzle ink jet in the printing apparatus when the printing accuracy needs to be adjusted, thereby achieving the purpose of accuracy calibration.
Alternatively, the acquisition unit 10b captures a plurality of images including the first image P1 and the second image P2 of the ejected first printing material and second printing material at set time intervals. The first image P1 includes a jet path of the first printing material, and the second image P2 includes a jet path of the first printing material and a jet path of the second printing material.
Optionally, the calculating unit 10c obtains the first distance D1 between the first printed material and the second printed material by measuring and calculating with software according to the information of the second image P2, and compares the first image P1 with the second image P2 with software to obtain the moving distance of the first printed material in the set time interval (i.e. photographing time interval). That is, the second distance D2 can be obtained by the first image P1 and the second image P2. Further, the calculating unit 10c obtains the falling speeds V2 of the first printing material and the second printing material according to the first distance D1 and the set time interval T1.
Further, the calculation unit 10c obtains the first printing material and the second printing material ejection time interval (set to T2) from the first distance D1 and the falling speed V2. And obtaining the actual spacing S1 between the first printing material and the second printing material after the first printing material and the second printing material drop according to the jet time interval T2 and the set speed V1.
The printing system 10 provided in the embodiment of the present application is applied to the printing method provided in the embodiment of the present application. The printing precision of the printing device can be detected without setting a printed virtual area on the substrate, and the cost can be saved. In addition, the printing precision inspection is performed at the time of exchanging the substrates, so that the printing precision is inspected, normal printing is not affected, and the productivity is improved.
The foregoing has described in detail a printing method, a printing system and a printing apparatus provided in the embodiments of the present application, and specific examples have been applied herein to illustrate the principles and embodiments of the present application, where the foregoing examples are only for aiding in understanding the methods and core ideas of the present application; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (7)
1. The printing method is characterized in that the printing method is used for printing equipment, the printing equipment comprises a bearing device, and when the printing equipment is in a working state, the bearing device moves at a set speed; the printing method comprises the following steps:
the same spray head sequentially sprays a first printing material and a second printing material;
acquiring jet paths of the first printing material and the second printing material;
obtaining a first distance between the first printing material and the second printing material according to the jet paths of the first printing material and the second printing material;
obtaining the falling speed of the first printing material according to the jet path of the first printing material;
obtaining a spraying time interval according to the first distance and the falling speed;
obtaining an actual distance between the first printing material and the second printing material according to the jet time interval and the set speed;
comparing the actual spacing with a set spacing;
and if the actual spacing is different from the set spacing, calibrating the printing equipment.
2. The printing method according to claim 1, wherein the acquiring the ejection paths of the first printing material and the second printing material includes the steps of:
capturing a plurality of images of the ejected first printing material and second printing material at set time intervals, the images including a first image and a second image; the first image comprises a jet path of a first printing material, and the second image comprises a jet path of the first printing material and a jet path of a second printing material.
3. The printing method according to claim 2, wherein the obtaining the first distance of the first printing material and the second printing material from the ejection paths of the first printing material and the second printing material includes the steps of:
and obtaining a first distance between the first printing material and the second printing material according to the second image.
4. The printing method according to claim 2, wherein the falling speeds of the first printing material and the second printing material are obtained from the ejection paths of the first printing material or the second printing material, comprising the steps of:
obtaining a second distance for the first printing material to move within the set time interval according to the first image and the second image;
and obtaining the falling speeds of the first printing material and the second printing material according to the second distance and the set time interval.
5. The printing method according to claim 1, wherein the calibrating the printing apparatus if the actual pitch is different from the set pitch comprises the steps of:
and if the actual spacing is different from the set spacing, adjusting the injection time interval so that the actual spacing is equal to the set spacing.
6. A printing system for a printing apparatus, the printing apparatus including a carriage, the carriage moving at a set speed when the printing apparatus is in an operating state, the printing system comprising:
a jetting unit for jetting the first printing material and the second printing material;
an acquisition unit configured to acquire ejection paths of the first printing material and the second printing material, respectively;
a calculating unit for obtaining an actual distance between the first printing material and the second printing material after the first printing material and the second printing material drop according to the jet paths of the first printing material and the second printing material; the method specifically comprises the following steps: obtaining a first distance between the first printing material and the second printing material according to the jet paths of the first printing material and the second printing material; obtaining the falling speed of the first printing material according to the jet path of the first printing material; obtaining a spraying time interval according to the first distance and the falling speed; obtaining an actual distance between the first printing material and the second printing material according to the jet time interval and the set speed;
the comparison unit is used for comparing the actual spacing with a set spacing;
and the adjusting unit is used for adjusting the spraying time interval when the actual spacing is different from the set spacing so as to make the actual spacing equal to the set spacing and calibrating the printing equipment.
7. A printing apparatus, characterized in that the printing apparatus has a correction state and an operation state, the printing apparatus comprising:
the printing device comprises a bearing device, a printing device and a control device, wherein when the printing device is in a working state, the bearing device moves at a set speed;
the accommodating device is arranged on one side of the bearing device;
the printing device is arranged above the bearing device, and is positioned above the accommodating device when the printing equipment is in the correction state, and is positioned above the bearing device when the printing equipment is in the working state;
the shooting device is positioned between the printing device and the bearing device and is arranged at one side of the containing device away from the bearing device,
the printing device comprises an ejecting unit, an acquiring unit, a calculating unit, a comparing unit and an adjusting unit;
the ejection unit is configured to eject a first printing material and a second printing material when the printing apparatus is in a correction state;
the acquisition unit is configured to acquire ejection paths of the first printing material and the second printing material;
the computing unit is configured to obtain an actual distance between the first printing material and the second printing material after the first printing material and the second printing material drop according to the jet paths of the first printing material and the second printing material; the method specifically comprises the following steps: obtaining a first distance between the first printing material and the second printing material according to the jet paths of the first printing material and the second printing material; obtaining the falling speed of the first printing material according to the jet path of the first printing material; obtaining a spraying time interval according to the first distance and the falling speed; obtaining an actual distance between the first printing material and the second printing material according to the jet time interval and the set speed;
the comparing unit is configured to compare the actual pitch with a set pitch;
the adjustment unit is configured to calibrate the printing apparatus when the actual pitch is different from the set pitch.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11105307A (en) * | 1997-08-05 | 1999-04-20 | Ricoh Co Ltd | System for measuring ejection characteristic of liquid drop |
| US7611217B2 (en) * | 2005-09-29 | 2009-11-03 | Applied Materials, Inc. | Methods and systems for inkjet drop positioning |
| JP2009148959A (en) * | 2007-12-19 | 2009-07-09 | Canon Inc | Device and method for inspecting inkjet recording head |
| CN104118213A (en) * | 2014-06-30 | 2014-10-29 | 晏石英 | Spray head array correction method |
| CN110077112B (en) * | 2018-04-18 | 2020-05-05 | 广东聚华印刷显示技术有限公司 | Method, apparatus and system for drop offset correction of print nozzles |
| US11458752B2 (en) * | 2018-11-30 | 2022-10-04 | Funai Electric Co., Ltd. | Printer |
| CN113858835A (en) * | 2021-08-02 | 2021-12-31 | 闽都创新实验室 | Method and system for monitoring angle of ink-jet printing head in real time based on image processing |
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