CN116552143B - Cross gantry type printing adjusting device and detection adjusting method thereof - Google Patents

Cross gantry type printing adjusting device and detection adjusting method thereof Download PDF

Info

Publication number
CN116552143B
CN116552143B CN202310849082.6A CN202310849082A CN116552143B CN 116552143 B CN116552143 B CN 116552143B CN 202310849082 A CN202310849082 A CN 202310849082A CN 116552143 B CN116552143 B CN 116552143B
Authority
CN
China
Prior art keywords
printing
point
upper camera
product
camera
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202310849082.6A
Other languages
Chinese (zh)
Other versions
CN116552143A (en
Inventor
田桂荣
金唱明
严在煜
程晨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Youbei Precision Intelligent Equipment Co ltd
Original Assignee
Suzhou Youbei Precision Intelligent Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Youbei Precision Intelligent Equipment Co ltd filed Critical Suzhou Youbei Precision Intelligent Equipment Co ltd
Priority to CN202310849082.6A priority Critical patent/CN116552143B/en
Publication of CN116552143A publication Critical patent/CN116552143A/en
Application granted granted Critical
Publication of CN116552143B publication Critical patent/CN116552143B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
    • 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
    • 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
    • B41J11/008—Controlling printhead for accurately positioning print image on printing material, e.g. with the intention to control the width of margins
    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface
    • 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

Landscapes

  • Ink Jet (AREA)

Abstract

The invention discloses a cross gantry type printing adjusting device and a detection adjusting method thereof, belonging to the technical field of inkjet printing, wherein the cross gantry type printing adjusting device comprises a driving rack, the driving rack comprises a bottom driving seat, a printing carrier for bearing products is arranged on the bottom driving seat in a driving way, a printing mechanism positioned above the printing carrier is also arranged on the driving rack in a driving way, and the printing mechanism comprises a plurality of printing spray heads corresponding to the printing carrier; an upper camera is arranged on one side of the printing mechanism, a lower camera is arranged on one side of the printing carrier, and the upper camera corresponds to the lower camera; the product is provided with a plurality of mark points, and the upper camera can acquire mark information of the mark points. The invention discloses a cross gantry type printing adjusting device and a detection adjusting method thereof, which have the functions of good assembly suitability and high printing compatibility.

Description

Cross gantry type printing adjusting device and detection adjusting method thereof
Technical Field
The invention relates to the technical field of ink-jet printing, in particular to a cross gantry type printing adjusting device and a detection adjusting method thereof.
Background
In the field of inkjet printing, a cross gantry printing method has been widely used. Typically the printhead is X-axis and is stationary after movement to the printing position, and the product to be printed moves as Y-axis. In this way printing, multiple printhead splices are typically used to increase the print width for wide patterns. In order to ensure high-precision printing, the following methods are generally adopted:
the method one ensures the verticality of the X/Y axis through processing and assembling precision.
The second method adjusts through final printing accuracy feedback, generally adjusts four aspects: 1. parallelism of the product and the Y-axis movement direction; 2. straightness of the spray holes after the plurality of printing heads are spliced; 3. perpendicularity between the whole X direction of the printing head and the Y axis motion direction of the product; 4. the position of the beginning point of the jet orifice of the printing head.
Both of these methods have certain disadvantages:
the first method has the defects of high processing and assembling precision requirement and high cost.
Drawbacks of method two: the printing solvent needs to be injected for operation, so that the limitation is large, and the solvent waste is easy to cause; because of the variable of introducing the solvent, the compatibility of different solvents with the printing head is different, and the influence of the precision cannot be accurately judged.
Disclosure of Invention
The invention overcomes the defects of the prior art, and provides the cross gantry type printing adjusting device and the detection adjusting method thereof, which have the functions of good assembly adaptability and high printing compatibility.
In order to achieve the above purpose, the invention adopts the following technical scheme: the detection and adjustment method of the cross gantry type printing adjustment device comprises a driving rack, wherein the driving rack comprises a bottom driving seat, a printing carrier used for bearing products is arranged on the bottom driving seat in a driving mode, a printing mechanism positioned above the printing carrier is also arranged on the driving rack in a driving mode, and the printing mechanism comprises a plurality of printing spray heads corresponding to the printing carrier;
an upper camera is arranged on one side of the printing mechanism, a lower camera is arranged on one side of the printing carrier, and the upper camera corresponds to the lower camera;
the product is provided with a plurality of mark points, and the upper camera can acquire mark information of the mark points;
the product is provided with a plurality of marking points, including a marking point I, a marking point II, a marking point III and a marking point IV which are arranged on the product in a rectangular arrangement;
the printing carrier is in driving connection with the bottom driving seat through a UVW adjusting platform;
the bottom driving seat is provided with a Y-axis displacement mechanism in a driving way, and the printing carrying platform is connected to the Y-axis displacement mechanism in a driving way through a UVW adjusting platform;
the printing mechanism is in driving connection with the upper part of the printing carrier through an X-axis displacement mechanism, and the driving track of the X-axis displacement mechanism is perpendicular to the different surface of the driving track of the Y-axis displacement mechanism;
the printing mechanism comprises a mounting seat which is arranged on the X-axis displacement mechanism in a driving way, a plurality of printing spray heads are arranged on the mounting seat in an arrangement way, and the printing spray heads are arranged on the mounting seat in a driving way through a position regulator;
the detection and adjustment method of the cross gantry type printing and adjusting device is realized by adopting the cross gantry type printing and adjusting device and comprises the following steps of:
step one, feeding, namely placing a product on a printing carrier, and limiting the product;
step two, obtaining image information of a printing target object according to the position of the product after the feeding in the step one, obtaining a position relation according to the image information, adjusting the relative position of a printing spray head in a printing mechanism and the printing target object according to the position relation, and calibrating the printing posture of the printing spray head of the printing mechanism according to the relative position;
step three, after the step two, printing is implemented according to the adjusted printing posture, and the position of the starting point of the spray hole of the printing spray head is required to be detected during printing;
in the second step, obtaining the image information of the printing target includes: acquiring the position relation between an upper camera and a product in the cross gantry type printing adjusting device; the acquiring the position relation according to the image information comprises the following steps: the position relation between the product and the upper camera in the coordinate system of the cross gantry type printing regulating device is regulated by taking one group of marking points corresponding to the Y-axis track of the cross gantry type printing regulating device as reference points; and adjusting the position relation between the product and the upper camera in the coordinate system of the cross gantry type printing adjusting device by taking one group of mark points corresponding to the X-axis track of the cross gantry type printing adjusting device as reference points;
the method for acquiring the position relationship comprises the following steps:
the upper camera moves to a marking point III of the product, the center point of the upper camera coincides with the center point of the marking point III, the upper camera is marked as a datum point MR1 (0, 0) in a coordinate system, the moving distance of the printing stage in the Y-axis direction is L1, the coordinate of a marking point IV in the upper camera is MR2 (x 1, 0), and the included angle between the center line of the product and the Y-axis of the cross gantry type printing regulating device is theta 1 ，θ 1 =arctan (x 1/L1); the upper camera moves to the center point of the marking point III, the center point of the upper camera coincides with the center point of the marking point III, the marking point III is marked as a reference point MR1 (0, 0) in the coordinate system of the upper camera, the moving distance of the upper camera in the X-axis direction is L2 when printing, the first marking point is ML1 (0, y 1) in the upper camera, and the included angle between the center line of the product and the X-axis is theta 2 ，θ 2 =arctan（y1/L2）；
In the second step, the printing posture of the printing nozzle of the printing mechanism is calibrated according to the relative position, and the printing posture adjusting method of the position between the product and the printing carrier comprises the following steps:
according to the included angle theta 1 Adjusting the UVW adjusting platform to enable the central line of the product to be parallel to the Y-axis, and according to the included angle theta 2 Adjusting the overall inclination angle of the printing nozzle;
the method for detecting and adjusting the nozzle starting point position of the printing head adopted when the nozzle starting point position of the printing nozzle is required to be detected during printing in the step three comprises the following steps:
a calibration plate is arranged on one side of the printing mechanism and is used for displacing the upper camera and the lower camera to the position of the calibration plate, and the calibration plate is positioned between the upper camera and the lower camera;
the upper camera and the lower camera shoot reference mark points on the calibration plate; the upper camera and the lower camera respectively acquire images, and the two images are compared to judge whether the centers of the reference mark points are consistent;
when the positions of the upper camera and the lower camera are inconsistent, the positions of the upper camera and the lower camera are adjusted, and the reference mark points on the calibration plate are shot according to the adjusted positions of the upper camera and the lower camera; the upper camera and the lower camera respectively acquire images, and the two images are compared to judge whether the centers of the reference mark points are consistent or not until the two images are consistent;
when the distances from the center point of the upper camera to the first spray hole of the printing mechanism in the X-axis direction and the Y-axis direction are measured through the lower camera, and data are recorded; the upper camera moves to any marking point position of the product, the marking point on the product is shot by the upper camera, and the initial position of the first spray hole of the printing mechanism is controlled through offset compensation.
In a preferred embodiment of the present invention, the obtaining the image information of the print target in the second step includes: calibrating the printing posture of a printing nozzle of the printing mechanism;
the calibration method for calibrating according to the parallel relation with the Y-axis comprises the following steps:
the lower camera moves to a first spray hole of a printing spray head at the outer end of the printing mechanism, and the angle of the printing spray head is adjusted to enable a straight line where the spray holes of the corresponding printing spray head are arranged to be parallel to the Y-axis of the cross gantry type printing adjusting device; other print heads in the printing mechanism are adjusted in the same manner.
In a preferred embodiment of the present invention, in the third step, the offset compensation method includes: the distance between the first jet hole of the printing mechanism and the upper camera on a plane formed by the X axis and the Y axis comprises the distance of X1 and Y1, wherein X1 and Y1 are fixed values;
before printing starts, the upper camera photographs any mark point in the product, and the mark point is taken as a reference 0 point; the printing start point is the position (X1, Y1) of the first spray hole of the printing mechanism on the product, the position (X2, Y2) of the start point of the pattern which is required to be printed, namely the position of the pattern start point from the reference 0 point,
the distance between the printing start point and the pattern start point is calculated according to the position (X1, Y1) of the first spray hole of the printing mechanism on the product and the position (X2, Y2) of the pattern start point from the reference 0 point.
The invention solves the defects existing in the background technology:
the cross gantry type printing adjusting device and the detection adjusting method thereof disclosed by the invention have the functions of good assembly suitability and high printing compatibility.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of an isometric view of a cross gantry type printing regulator according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram showing an isometric view of a cross gantry type printing regulator according to a preferred embodiment of the present invention;
FIG. 3 is a schematic elevational view of a cross gantry type printing regulator according to a preferred embodiment of the present invention;
FIG. 4 is a schematic top view of a cross gantry type printing regulator according to a preferred embodiment of the present invention;
FIG. 5 is a schematic top view of a cross gantry type printing adjustment device according to a preferred embodiment of the present invention (when the center line a of the product is not parallel to the Y axis);
FIG. 6 is a schematic illustration of a cross gantry type printing adjustment unit of the present invention having a plurality of marking points on a product;
FIG. 7 shows an angle θ between the center line a of the product and the Y-axis in the cross gantry type printing adjustment device according to the preferred embodiment of the present invention 1 (upper camera displaced above one of the marker points);
FIG. 8 is a schematic view of a cross gantry type printing adjustment device according to a preferred embodiment of the present invention, in which the lower camera corresponds to the print head;
FIG. 9 is a schematic bottom view of the cross gantry type printing adjustment device according to the preferred embodiment of the present invention, wherein the product is adjusted to have an angle corresponding to the upper camera and the printing head;
FIG. 10 shows that the included angle between the center line a of the product and the X-axis is θ in the cross gantry type printing adjusting device according to the preferred embodiment of the present invention 2 (upper camera displaced above one of the marker points);
FIG. 11 is a schematic view showing a structure in which a print head is arranged on a mounting base by a position regulator drive in a cross gantry type print regulating device according to a preferred embodiment of the present invention;
FIG. 12 is a schematic view showing the structure of the printing head according to the preferred embodiment of the present invention when the printing head is adjusted to be perpendicular to the Y-axis;
FIG. 13 is a schematic illustration of the displacement of the upper and lower cameras to the calibration plate to obtain fiducial mark points M on the calibration plate in a preferred embodiment of the invention;
FIG. 14 is a schematic diagram showing the arrangement of a method for detecting and adjusting the position of the nozzle start point of the print head according to the preferred embodiment of the present invention;
FIG. 15 is a flow chart of a method for detecting and adjusting the position of the nozzle start point of the print head according to the preferred embodiment of the invention;
in the figure, 1-X axis displacement mechanism, 2-upper camera, 3-print head, 4-product, 5-print stage, 6-UVW adjustment stage, 7-Y axis displacement mechanism, 8-lower camera, 9-mount, 91-position regulator, 10-calibration plate, markL 1-mark point one, markL 2-mark point two, markR 1-mark point three, markR 2-mark point four, AA-X axis, BB-Y axis, M-reference mark point, D-first nozzle, N-pattern start point.
Detailed Description
The invention will now be described in further detail with reference to the drawings and examples, which are simplified schematic illustrations of the basic structure of the invention, which are presented only by way of illustration, and thus show only the structures that are relevant to the invention.
Example 1
As shown in fig. 1-5 and 11, the cross gantry type printing adjusting device comprises a driving rack, wherein the driving rack comprises a bottom driving seat, and a printing carrier 5 for receiving a product 4 is arranged on the bottom driving seat in a driving manner. The printing carrier 5 is in driving connection with the bottom driving seat through a UVW adjusting platform 6. A lower camera 8 is provided on one side of the print stage 5, and the upper camera 2 corresponds to the lower camera 8.
Further, a Y-axis displacement mechanism 7 is arranged on the bottom driving seat in a driving way, and the printing carrier 5 is connected to the Y-axis displacement mechanism 7 through a UVW adjusting platform 6 in a driving way; the printing mechanism is connected above the printing stage 5 through the X-axis displacement mechanism 1 in a driving way, and the driving track of the X-axis displacement mechanism 1 is perpendicular to the driving track of the Y-axis displacement mechanism 7 in a different plane.
Specifically, a plurality of mark points are provided on the product 4, and the upper camera 2 can acquire mark information of the mark points. Further, a plurality of mark points are arranged on the product 4, including a mark point one mark L1, a mark point two mark L2, a mark point three mark R1 and a mark point four mark R2 which are arranged on the product 4 in a rectangular arrangement. Marking point one marking point marking L1, marking point two marking points marking L2, marking point three marking points marking R1 and marking point four marking points marking R2 are respectively positioned at four corners of the product 4. And four marking points are surrounded to form a rectangular structure.
The driving frame is also provided with a printing mechanism above the printing carrier 5. The printing mechanism includes at least one printing head 3 corresponding to the printing stage 5. An upper camera 2 is provided on one side of the printing mechanism. The printing mechanism in this embodiment includes a mount 9 that is driven on the X-axis displacement mechanism 1, a plurality of printing heads 3 are arranged on the mount 9, and the printing heads 3 are driven by a position regulator 91 to be disposed on the mount 9.
Further, in this embodiment, a plurality of printing heads 3 are arranged in a row and driven on the mounting base 9, and a row of printing heads 3 are driven and arranged on the mounting base 9 by a displacement plate and at least one group of position adjusters 91, and each printing head 3 is driven and arranged on the displacement plate by at least one position adjuster 91, and the planar position of the printing head 3 on the mounting base 9 is adjusted by at least two groups of position adjusters 91 having vertical displacement tracks. The position regulator 91 may be a screw regulator in the prior art, but is not limited to this, and the type and product of the position regulator 91 in the prior art may be a type and product that can drive the position adjustment of the printing nozzle 3 relative to the mounting seat 9.
Example two
As shown in fig. 1 to 15, on the basis of the first embodiment, a detection adjustment method of a cross gantry type printing adjustment device includes the steps of:
step one, feeding, namely placing the product 4 on a printing carrier 5, and limiting the product 4. As shown in fig. 1-5.
And step two, acquiring image information of a printing target object according to the position of the product 4 after the feeding in the step one, acquiring a position relation according to the image information, adjusting the relative position of the printing nozzle 3 in the printing mechanism and the printing target object according to the position relation, and calibrating the printing posture of the printing nozzle 3 of the printing mechanism according to the relative position.
Specifically, as shown in fig. 5 to 7, acquiring image information of a print target includes: acquiring the position relation between the upper camera 2 and the product 4 in the cross gantry type printing adjusting device; the acquiring the position relation according to the image information comprises the following steps: the positional relationship between the product 4 and the upper camera 2 in the coordinate system of the cross gantry type printing adjusting device is adjusted by taking one group of mark points corresponding to the Y-axis BB track or the X-axis AA track of the cross gantry type printing adjusting device as reference points.
In this embodiment, the positional relationship between the product 4 and the upper camera 2 in the coordinate system of the cross gantry type printing adjustment device is adjusted by using one set of mark points corresponding to the tracks of the Y axis BB of the cross gantry type printing adjustment device as reference points.
The method for acquiring the position relationship comprises the following steps:
as shown in fig. 5 to 7, the upper camera 2 is moved to one of the mark points three MarkR1 of the product 4, the center point of the upper camera 2 coincides with the center point of the mark point three MarkR1, the upper camera 2 is marked as a reference point MR1 (0, 0) in the coordinate system, the moving distance of the print stage 5 in the Y-axis direction is L1, the mark point four MarkR2 is marked as MR2 (x 1, 0) in the upper camera 2, and the angle θ between the center line a of the product 4 and the Y-axis BB of the cross gantry print adjusting device is 1 ，θ 1 =arctan(x1/L1)。
In the second step, the printing posture adjustment method for calibrating the position between the product 4 and the printing stage 5 according to the printing posture of the printing nozzle 3 of the printing mechanism by the relative position includes:
according to the included angle theta 1 The T-axis angle of UVW adjustment stage 6 is adjusted so that the centerline a of product 4 is parallel to Y-axis BB.
The step two, the image information of the printing target object is obtained, which comprises the following steps: calibrating the printing posture of the printing nozzle 3 of the printing mechanism;
the calibration method according to the parallel relation with the Y-axis BB includes:
as shown in fig. 8 and 9, the lower camera 8 moves to the first nozzle D of the printing nozzle 3 at the outer end of the printing mechanism, and adjusts the angle of the printing nozzle 3 so that the straight line where the nozzles of the corresponding printing nozzle 3 are arranged is parallel to the Y-axis BB of the cross gantry printing adjustment device; other printing heads 3 in the printing mechanism are adjusted in the same way; so that the orifices of the respective printing heads 3 are aligned.
And then the position relation between the product 4 and the upper camera 2 in the coordinate system of the cross gantry type printing regulating device is regulated by taking one group of marking points corresponding to the X-axis AA track of the cross gantry type printing regulating device as reference points.
The method for acquiring the position relationship comprises the following steps:
as shown in fig. 10 to 12, when the upper camera 2 is moved to the center point of the mark point three mark r1, the center point of the upper camera 2 coincides with the center point of the mark point three mark r1, and is marked as a reference point MR1 (0, 0) in the coordinate system of the upper camera 2, the upper camera 2 is moved by a distance L2 in the X-axis during printing, the mark point mark L1 is marked as ML1 (0, y 1) in the upper camera 2, and the angle between the center line of the product 4 and the X-axis AA is θ 2， θ 2 =arctan(y1/L2)；
The print attitude adjustment method of calibrating the position between the product 4 and the print stage 5 of the print head 3 of the printing mechanism according to the relative position includes: according to the included angle theta 2 The overall inclination angle of the printing head 3 is adjusted.
The calibration method according to the vertical relation to the Y-axis BB includes:
as shown in fig. 13 to 15, the lower camera 8 observes the first nozzle D of the printing head 3 at the outer end in the printing mechanism and the last nozzle position of the other printing heads 3 in the printing mechanism; the straight line of the distribution track of the whole spray holes of the printing spray head 3 is parallel to the central line of the product 4 and perpendicular to the Y-axis BB.
And thirdly, after the second step, printing according to the adjusted printing posture, and detecting the position of the starting point of the spray hole of the printing spray head 3 during printing.
As shown in fig. 15, the method for detecting and adjusting the nozzle hole start point position of the printing head used when detecting the nozzle hole start point position of the printing nozzle 3 during printing includes:
a calibration plate 10 is further arranged on one side of the printing mechanism, the upper camera 2 and the lower camera 8 are displaced to the position of the calibration plate 10, and the calibration plate 10 is positioned between the upper camera 2 and the lower camera 8;
the upper camera 2 and the lower camera 8 take a picture of the fiducial mark points M on the calibration plate 10; comparing the two images according to the images respectively acquired by the upper camera 2 and the lower camera 8 to judge whether the centers of the reference mark points M are consistent;
if the positions of the upper camera 2 and the lower camera 8 are inconsistent, the positions of the upper camera 2 and the lower camera 8 after adjustment are used for shooting the reference mark point M on the calibration plate 10; comparing the two images according to the images respectively acquired by the upper camera 2 and the lower camera 8 to judge whether the centers of the reference mark points M are consistent or not until the two images are consistent;
when the distances from the center point of the upper camera 2 to the first jet hole D of the printing mechanism in the X-axis direction and the Y-axis direction are measured through the lower camera 8, and data are recorded; the upper camera 2 is moved to an arbitrary mark point position of the product 4, the mark point on the product 4 is photographed by the upper camera 2, and the initial position of the first nozzle D of the printing mechanism is controlled by offset compensation.
Further, the offset compensation, i.e. offset compensation, method includes:
the distance of the first nozzle hole D of the printing mechanism on the plane formed by the X axis and the Y axis of the upper camera 2 comprises the distance of X1 and Y1, and the X1 and Y1 are fixed values; before printing starts, the upper camera 2 photographs any mark point in the product 4, and takes the mark point as a reference 0 point; the printing starting point is the position (X1, Y1) of the first jet orifice D of the printing mechanism on the product 4, the starting point distance of the required printing pattern is X2, Y2 from the 0 point position, and the distance delta X=X2-X1 between the printing starting point and the pattern starting point N; Δy=y2+y1.
Working principle:
as shown in fig. 3-10, the cross gantry type printing adjusting device and the detection adjusting method thereof disclosed by the invention reduce the requirement on the machining and assembling precision and reduce the cost through an adjusting method. The precision of the component can be accurately adjusted before printing, the influence of the type of printing solvent on the precision is avoided, the waste of the printing solvent is reduced, and the adjustment means is simplified.
The invention is characterized in that a lower camera 8 is arranged on one side of a printing carrier 5 on a bottom driving seat, a printing mechanism corresponding to the printing carrier 5 is arranged on an X-axis displacement mechanism 1 on a driving rack in a driving way, a printing spray head 3 with the position adjusted by a position adjuster 91 is arranged in the printing mechanism, an upper camera 2 is arranged on one side of the printing spray head 3 of the printing mechanism,
the position acquisition is carried out through the upper camera 2 and the lower camera 8, particularly the product 4 is placed on the printing carrier 5, and the relative position of the product 4 in the cross gantry type printing regulating device is regulated through regulating the UVW regulating platform 6 and the Y-axis displacement mechanism 7 which are arranged on the lower part of the printing carrier 5 in a driving way. And acquiring image information of the printing target object by using the position of the product 4 after the feeding is finished, acquiring a position relation according to the image information, adjusting the relative position of the printing nozzle 3 in the printing mechanism and the printing target object according to the position relation, and calibrating the printing posture of the printing nozzle 3 of the printing mechanism according to the relative position.
And then, the upper camera 2, the lower camera 8 and the calibration plate 10 are matched, printing is implemented according to the adjusted printing posture, and the position of the starting point of the spray hole of the printing spray head 3 is required to be detected during printing. The adopted method for detecting and adjusting the initial point position of the spray hole comprises the following steps: a calibration plate 10 is further arranged on one side of the printing mechanism, the upper camera 2 and the lower camera 8 are moved to the position of the calibration plate 10, the calibration plate 10 is positioned between the upper camera 2 and the lower camera 8, the reference mark points M of the calibration plate 10 are collected through the upper camera 2 and the lower camera 8 for calibration, and then the initial point position of the spray hole is obtained. Measuring the distance from the center point of the upper camera 2 to the first jet hole D of the printing mechanism in the X-axis direction and the Y-axis direction by the lower camera 8, and recording data; the upper camera 2 moves to any marking point position of the product 4, the marking point on the product 4 is shot by the upper camera 2, and the printing starting point is the position (X1, Y1) of the first jet orifice D of the printing mechanism on the product 4 through offset compensation, and the distance between the starting point of the pattern to be printed and the 0 point position X2, Y2, the distance between the printing starting point and the pattern starting point N; the starting position of the first nozzle D of the printing mechanism is controlled.
In view of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.

Claims (3)

1. The detection and adjustment method of the cross gantry type printing adjustment device is characterized in that the cross gantry type printing adjustment device comprises a driving rack, the driving rack comprises a bottom driving seat, a printing carrying platform (5) for carrying products (4) is arranged on the bottom driving seat in a driving mode, a printing mechanism positioned above the printing carrying platform (5) is arranged on the driving rack in a driving mode, and the printing mechanism comprises a plurality of printing spray heads (3) corresponding to the printing carrying platform (5);
an upper camera (2) is arranged on one side of the printing mechanism, a lower camera (8) is arranged on one side of the printing carrier (5), and the upper camera (2) corresponds to the lower camera (8);
a plurality of marking points are arranged on the product (4), and the upper camera (2) can acquire marking information of the marking points;
the product (4) is provided with a plurality of mark points, including a mark point I (mark L1), a mark point II (mark L2), a mark point III (mark R1) and a mark point IV (mark R2) which are arranged on the product (4) in a rectangular arrangement;
the printing carrier (5) is in driving connection with the bottom driving seat through a UVW adjusting platform (6);
the bottom driving seat is provided with a Y-axis displacement mechanism (7) in a driving way, and the printing carrying platform (5) is connected to the Y-axis displacement mechanism (7) in a driving way through a UVW adjusting platform (6);
the printing mechanism is in driving connection with the upper part of the printing carrier (5) through an X-axis displacement mechanism (1), and the driving track of the X-axis displacement mechanism (1) is perpendicular to the different surface of the driving track of the Y-axis displacement mechanism (7);
the printing mechanism comprises a mounting seat (9) which is arranged on the X-axis displacement mechanism (1) in a driving way, a plurality of printing spray heads (3) are arranged on the mounting seat (9), and the printing spray heads (3) are arranged on the mounting seat (9) in a driving way through a position regulator (91);
the detection and adjustment method of the cross gantry type printing and adjusting device is realized by adopting the cross gantry type printing and adjusting device and comprises the following steps of:
firstly, feeding, namely placing a product (4) on a printing carrier (5), and limiting the product (4);
step two, obtaining image information of a printing target object according to the position of the product (4) after the feeding in the step one, obtaining a position relation according to the image information, adjusting the relative position of a printing nozzle (3) in a printing mechanism and the printing target object according to the position relation, and calibrating the printing posture of the printing nozzle (3) of the printing mechanism according to the relative position;
step three, after the step two, printing is implemented according to the adjusted printing posture, and the initial point position of the spray hole of the printing spray head (3) needs to be detected during printing;
in the second step, obtaining the image information of the printing target includes: acquiring the position relation between an upper camera (2) and a product (4) in the cross gantry type printing adjusting device; the acquiring the position relation according to the image information comprises the following steps: adjusting the position relation of a product (4) and an upper camera (2) in a coordinate system of the cross gantry type printing adjusting device by taking a group of mark points corresponding to a Y-axis (BB) track of the cross gantry type printing adjusting device as reference points; and adjusting the positional relationship of the product (4) and the upper camera (2) in the coordinate system of the cross gantry type printing adjusting device by taking one group of mark points corresponding to the X-axis (AA) track of the cross gantry type printing adjusting device as reference points;
the method for acquiring the position relationship comprises the following steps:
the upper camera (2) moves to a mark point III (MarkR 1) of the product (4), the center point of the upper camera (2) coincides with the center point of the mark point III (MarkR 1), the upper camera (2) is marked as a datum point MR1 (0, 0) in a coordinate system, the moving distance of the printing stage (5) in the Y-axis direction is L1, the mark point IV (MarkR 2) in the upper camera (2) is marked as MR2 (x 1, 0), and the included angle between the center line of the product (4) and the Y-axis (BB) of the cross gantry type printing regulating device is theta 1 ，θ 1 =arctan (x 1/L1); the upper camera (2) moves to the center point of the mark point III (MarkR 1), the center point of the upper camera (2) coincides with the center point of the mark point III (MarkR 1), the mark point III (MarkR 1) is marked as a reference point MR1 (0, 0) in the coordinate system of the upper camera (2), the moving distance of the upper camera (2) in the X-axis direction is L2 when printing, the coordinate of the mark point I (MarkL 1) in the upper camera (2) is ML1 (0, y 1), and the included angle between the center line of the product (4) and the X-axis (AA) is theta 2 ，θ 2 =arctan（y1/L2）；
In the second step, the printing posture adjustment method for the position between the product (4) and the printing stage (5) of the printing nozzle (3) of the printing mechanism is calibrated according to the relative position, and comprises the following steps:
according to the included angle theta 1 Adjusting the UVW adjusting platform (6) to enable the central line of the product (4) to be parallel to the Y-axis (BB) and according to the included angle theta 2 Adjusting the whole inclination angle of the printing nozzle (3);
the method for detecting and adjusting the nozzle starting point position of the printing head adopted when the nozzle starting point position of the printing nozzle (3) is required to be detected during printing in the step three comprises the following steps:
a calibration plate (10) is arranged on one side of the printing mechanism, the upper camera (2) and the lower camera (8) are displaced to the position of the calibration plate (10), and the calibration plate (10) is positioned between the upper camera (2) and the lower camera (8);
an upper camera (2) and a lower camera (8) shoot reference mark points (M) on a calibration plate (10); the upper camera (2) and the lower camera (8) respectively acquire images, and the two images are compared to judge whether the centers of the reference mark points (M) are consistent;
when the positions of the upper camera (2) and the lower camera (8) are inconsistent, the positions of the upper camera (2) and the lower camera (8) after adjustment are used for shooting the reference mark points (M) on the calibration plate (10); the upper camera (2) and the lower camera (8) respectively acquire images, and the two images are compared to judge whether the centers of the reference mark points (M) are consistent or not until the two images are consistent;
when the distances from the center point of the upper camera (2) to the first spray hole (D) of the printing mechanism in the X-axis direction and the Y-axis direction are measured through the lower camera (8), and data are recorded; the upper camera (2) moves to any marking point position of the product (4), the marking point on the product (4) is shot by the upper camera (2), and the initial position of the first spray hole (D) of the printing mechanism is controlled through offset compensation.
2. The detection and adjustment method of a cross gantry type printing adjustment device according to claim 1, wherein the obtaining of the image information of the printing target in the second step includes: calibrating the printing posture of a printing nozzle (3) of the printing mechanism;
the calibration method according to the parallel relation with the Y-axis (BB) comprises:
the lower camera (8) moves to a first spray hole (D) of a printing spray head (3) at the outer end in the printing mechanism, and the angle of the printing spray head (3) is adjusted to enable a straight line where the spray holes of the corresponding printing spray head (3) are arranged to be parallel to a Y-axis (BB) of the cross gantry type printing adjusting device; the other printing heads (3) in the printing mechanism are adjusted in the same way.
3. The detection and adjustment method of the cross gantry type printing adjustment device according to claim 1, wherein: in the third step, the offset compensation method includes: the distance between the first jet hole (D) of the printing mechanism and the upper camera (2) on a plane formed by the X axis and the Y axis comprises the distance of X1 and Y1, and the distances of X1 and Y1 are fixed values;
before printing starts, the upper camera (2) photographs any marked point in the product (4), and takes the marked point as a reference 0 point; the printing start point is the position (X1, Y1) of the first jet orifice (D) of the printing mechanism on the product (4), the position (X2, Y2) of the start point of the pattern, namely the pattern start point (N), from the reference 0 point,
the distance between the printing start point and the pattern start point (N) is calculated according to the position (X1, Y1) of the first jet orifice (D) of the printing mechanism on the product (4) and the position (X2, Y2) of the pattern start point (N) from the reference 0 point.
CN202310849082.6A 2023-07-12 2023-07-12 Cross gantry type printing adjusting device and detection adjusting method thereof Active CN116552143B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310849082.6A CN116552143B (en) 2023-07-12 2023-07-12 Cross gantry type printing adjusting device and detection adjusting method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310849082.6A CN116552143B (en) 2023-07-12 2023-07-12 Cross gantry type printing adjusting device and detection adjusting method thereof

Publications (2)

Publication Number Publication Date
CN116552143A CN116552143A (en) 2023-08-08
CN116552143B true CN116552143B (en) 2023-09-12

Family

ID=87503998

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310849082.6A Active CN116552143B (en) 2023-07-12 2023-07-12 Cross gantry type printing adjusting device and detection adjusting method thereof

Country Status (1)

Country Link
CN (1) CN116552143B (en)

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1512939A (en) * 2001-09-10 2004-07-14 ������������ʽ���� Ink deposition apparatus and method
JP2004261701A (en) * 2003-02-28 2004-09-24 Shibaura Mechatronics Corp Paste coating applicator
JP2004322606A (en) * 2003-04-28 2004-11-18 Matsushita Electric Ind Co Ltd Alignment method for nozzle head, line head, and inkjet recorder having the same mounted thereon
CN101407131A (en) * 2007-10-12 2009-04-15 株式会社日立工业设备技术 Inkjet head device
EP2094489A1 (en) * 2006-12-22 2009-09-02 Fujifilm Dimatix, Inc. Adjustable mount printhead assembly
JP2010099597A (en) * 2008-10-24 2010-05-06 Toray Ind Inc Coating device and coating method
CN104602872A (en) * 2012-09-04 2015-05-06 富士机械制造株式会社 Work device
JP2015213848A (en) * 2014-05-07 2015-12-03 株式会社リコー Ink jet device and nozzle head positioning method and program
CN112319066A (en) * 2020-09-10 2021-02-05 季华实验室 Ink-jet printing head splicing correction system and correction method thereof
CN212685026U (en) * 2020-06-24 2021-03-12 合肥欣奕华智能机器有限公司 Substrate operation platform
CN113306292A (en) * 2020-02-26 2021-08-27 松下知识产权经营株式会社 Ink jet printing method and ink jet printing apparatus
CN113492591A (en) * 2020-03-19 2021-10-12 深圳市汉森软件有限公司 Printing method, device, equipment and storage medium with image acquisition device as auxiliary
CN113524906A (en) * 2020-04-17 2021-10-22 松下知识产权经营株式会社 Table device and printing device
CN214522789U (en) * 2020-11-25 2021-10-29 深圳金谷田科技有限公司 Splicing device for adjusting printing head by using CCD (Charge coupled device) vision system
CN217259207U (en) * 2022-02-26 2022-08-23 陕西维视智造科技股份有限公司 Printer correction positioning device
CN115837805A (en) * 2023-02-22 2023-03-24 苏州优备精密智能装备股份有限公司 Equipment for realizing ink jet printing on side edge of display panel and ink jet printing control method thereof
CN116100954A (en) * 2023-04-13 2023-05-12 苏州优备精密智能装备股份有限公司 Device and method for guiding ink-jet printing path by measuring edge straightness
CN116373470A (en) * 2023-06-05 2023-07-04 苏州优备精密智能装备股份有限公司 Device and printing method for realizing ink-jet printing based on visual guidance

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1512939A (en) * 2001-09-10 2004-07-14 ������������ʽ���� Ink deposition apparatus and method
JP2005502455A (en) * 2001-09-10 2005-01-27 セイコーエプソン株式会社 Inkjet deposition apparatus and method
JP2004261701A (en) * 2003-02-28 2004-09-24 Shibaura Mechatronics Corp Paste coating applicator
JP2004322606A (en) * 2003-04-28 2004-11-18 Matsushita Electric Ind Co Ltd Alignment method for nozzle head, line head, and inkjet recorder having the same mounted thereon
EP2094489A1 (en) * 2006-12-22 2009-09-02 Fujifilm Dimatix, Inc. Adjustable mount printhead assembly
CN101407131A (en) * 2007-10-12 2009-04-15 株式会社日立工业设备技术 Inkjet head device
JP2010099597A (en) * 2008-10-24 2010-05-06 Toray Ind Inc Coating device and coating method
CN104602872A (en) * 2012-09-04 2015-05-06 富士机械制造株式会社 Work device
JP2015213848A (en) * 2014-05-07 2015-12-03 株式会社リコー Ink jet device and nozzle head positioning method and program
CN113306292A (en) * 2020-02-26 2021-08-27 松下知识产权经营株式会社 Ink jet printing method and ink jet printing apparatus
CN113492591A (en) * 2020-03-19 2021-10-12 深圳市汉森软件有限公司 Printing method, device, equipment and storage medium with image acquisition device as auxiliary
CN113524906A (en) * 2020-04-17 2021-10-22 松下知识产权经营株式会社 Table device and printing device
CN212685026U (en) * 2020-06-24 2021-03-12 合肥欣奕华智能机器有限公司 Substrate operation platform
CN112319066A (en) * 2020-09-10 2021-02-05 季华实验室 Ink-jet printing head splicing correction system and correction method thereof
CN214522789U (en) * 2020-11-25 2021-10-29 深圳金谷田科技有限公司 Splicing device for adjusting printing head by using CCD (Charge coupled device) vision system
CN217259207U (en) * 2022-02-26 2022-08-23 陕西维视智造科技股份有限公司 Printer correction positioning device
CN115837805A (en) * 2023-02-22 2023-03-24 苏州优备精密智能装备股份有限公司 Equipment for realizing ink jet printing on side edge of display panel and ink jet printing control method thereof
CN116100954A (en) * 2023-04-13 2023-05-12 苏州优备精密智能装备股份有限公司 Device and method for guiding ink-jet printing path by measuring edge straightness
CN116373470A (en) * 2023-06-05 2023-07-04 苏州优备精密智能装备股份有限公司 Device and printing method for realizing ink-jet printing based on visual guidance

Also Published As

Publication number Publication date
CN116552143A (en) 2023-08-08

Similar Documents

Publication Publication Date Title
US11766831B2 (en) Calibration for additive manufacturing
JP5556661B2 (en) Inkjet drawing device
KR102471897B1 (en) Workpiece processing apparatus, workpiece processing method, and computer storage medium
KR20060038439A (en) Method and device for accurately positioning a pattern on a substrate
NL2016137B1 (en) Inkjet printing system and method for processing substrates.
US6702419B2 (en) System and method for delivering droplets
JP2006258845A (en) Pattern forming device and head correcting method
CN113196166A (en) Jetting control using substrate alignment features and print area alignment features
CN113370531B (en) Three-dimensional (3D) object printing system compensating for misregistration
CN113306292B (en) Inkjet printing method and inkjet printing apparatus
JP2002189115A (en) Apparatus for manufacturing color filter and method for manufacturing color filter using the same
CN116552143B (en) Cross gantry type printing adjusting device and detection adjusting method thereof
JP5495528B2 (en) Inkjet recording apparatus and inkjet recording method
JPH09277571A (en) Device for manufacturing color filter, manufacture of color filter, and color filter
EP4272964A1 (en) Ink drop measurement pad, inkjet printer device including same, and ink drop measurement method
JP2003001175A (en) Painting device, painting method and method for manufacturing display device
JP5732249B2 (en) Mounting method of recording head of image recording apparatus
CN220785243U (en) Character printer
JPH0949920A (en) Apparatus and method for producing color filter and color filter
US20240165886A1 (en) Calibration for Additive Manufacturing
NL2008067C2 (en) Inkjet system comprising a holder positioning device for positioning a substrate holder and holder calibration method.
JP2022168996A (en) Inkjet type printer and printing method
CN118514436A (en) Printer equipment with spliced printing head and splicing calibration method
CN114945472A (en) Step-by-step compensated carriage printer
JPH08292317A (en) Apparatus and method for producing color filter

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant