CN1073508C - Automatic sheet-image aligning device of printer jet - Google Patents
Automatic sheet-image aligning device of printer jet Download PDFInfo
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- CN1073508C CN1073508C CN 97123003 CN97123003A CN1073508C CN 1073508 C CN1073508 C CN 1073508C CN 97123003 CN97123003 CN 97123003 CN 97123003 A CN97123003 A CN 97123003A CN 1073508 C CN1073508 C CN 1073508C
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- nozzle head
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- head wafer
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Abstract
The present invention relates to an automatic image aligning device for a printer nozzle head film, which is used for placing a film on a nozzle head wafer. The present invention is characterized in that the automatic image aligning device for a printer nozzle head film comprises an optical image identifying system, a positioning mechanism, a controller, a driver and a sensing interface. The positioning mechanism is controlled through an error which is between the position of the film and the position of the nozzle head wafer and read by the optical image identifying system to adjust the position of the nozzle head wafer, and thus, the film is placed on the nozzle head wafer. Thus, the present invention replaces human eyes to judge the positions of the film and the nozzle head wafer; in addition, the working accuracy is raised, the operational process is shortened, and the production capacity is enhanced.
Description
The present invention relates to a kind of image alignment device, relate in particular to a kind of printer nozzle head automatic sheet-image alignment device.
Printer is from early stage dot matrix, and ink-jet till now and laser are always all played the part of very important role at computer external.And nozzle head is the spare part of a key in ink-jet printer, if the manufacturing technology of nozzle head can make moderate progress, then ink-jet printer production capacity, quality will promote thereupon, and this will be that the people finds pleasure in the thing of seeing.
Seeing also Fig. 1, is the schematic diagram of a traditional semi-automatic image alignment system shown in the figure, and the step of operation is as follows:
At first, making PLC controller 11 start feed mechanism 12 with the right hand delivers to nozzle head wafer and film on the detent mechanism.At this moment, the nozzle head wafer places on the platform of detent mechanism, and film is held by a suction nozzle and be positioned at nozzle head wafer top.Simultaneously, charge-coupled image sensor 18 (CCD) sees through screen 16 that graphic interface 17 reaches personal computer carries out contraposition according to the shown alternate position spike of the two image with prompting operation person work with the image of nozzle head wafer and film.
Then, promptly carry out uninteresting contraposition work.Utilize the shown alternate position spike of image of screen 16 top nozzle head wafers and film, select the operating key of pressing on personal computer 13 keyboards with left hand, remove to control drive circuit 14 with rotation or mobile positioning mechanism 15 by personal computer 13, thereby adjust the position of this nozzle head wafer, till the position that shows nozzle head wafer and film on the screen 16 is harmonious.
At last, film is placed on the work of just finishing contraposition on the nozzle head wafer.
Above-mentioned semi-automatic image contraposition mode, because optics, feeding and contraposition are separate controlling organization individually, so palpus separate operation during operation, and must personnel selection judge whether previous program is finished between each program, just can continue next program, so it is nonideal design, to consume man-hour too many, and naked eyes are tired easily.
The purpose of this invention is to provide a kind of printer nozzle head automatic sheet-image alignment device, it utilizes image processing techniques to reach the work of automatic contraposition, and need not to come contraposition and judgement with human eye.
The object of the present invention is achieved like this:
A kind of printer nozzle head automatic sheet-image alignment device with so that a film places on the nozzle head wafer, is characterized in that comprising with lower member:
One image recognition optical system is made up of a charge-coupled image sensor and an image processor, and wherein, described charge-coupled image sensor reads the image of this film and this nozzle head wafer in order to when film and nozzle head wafer are put at detent mechanism; Described image processor is electrically connected with charge-coupled image sensor, when reading the image of film and nozzle head wafer at charge-coupled image sensor, and the identification signal that charge-coupled image sensor transmitted;
One location mechanism, it places the input of described image recognition optical system, form by vertical (Y) angle (θ) shaft platform of a level (X), a suction nozzle, motor and position coder, wherein, vertical (Y) angle (θ) shaft platform of described level (X) is in order to putting the nozzle head wafer, and can do level and vertical adjustment; Described suction nozzle is positioned at vertical (Y) angle (θ) shaft platform of level (X) top, in order to hold film; Described motor is connected with this level (X) vertical (Y) angle (θ) shaft platform, in order to the displacement of vertical (Y) angle (θ) shaft platform of this level of transmission (X), makes it identical with the position of film with the position of adjusting the nozzle head wafer; Described position coder is connected with this level (X) vertical (Y) angle (θ) shaft platform, in order to the position signal of whole detent mechanism to be provided;
One controller, it is electrically connected with this image recognition optical system, is the control maincenter of this positioning control system, in order to controlling this detent mechanism, and receives the signal and the position of differentiating film and nozzle head wafer of image processor;
One driver, it is electrically connected with this controller, in order to the control signal that strengthens this controller to drive this detent mechanism; And
One detects the signal interface, and it is electrically connected with controller, in order to receiving position encoder signal, again this signal is sent to controller after the identification.
In above-mentioned printer nozzle head automatic sheet-image alignment device, wherein, the position of described film is diagonally opposing corner 2 o'clock level and upright position with respect to a horizontal vertical coordinate of this film, and one according to the angle with respect to the trunnion axis of this horizontal vertical coordinate that is calculated by 2 of the diagonally opposing corners of this film.
In above-mentioned printer nozzle head automatic sheet-image alignment device, wherein, the position of described nozzle head wafer is diagonally opposing corner 2 level and upright positions with respect to this horizontal vertical coordinate of this nozzle head wafer, and one according to the angle with respect to the trunnion axis of this horizontal vertical coordinate that is calculated by 2 of the diagonally opposing corners of this nozzle head wafer.
In above-mentioned printer nozzle head automatic sheet-image alignment device, wherein, described controller is a personal computer.
In above-mentioned printer nozzle head automatic sheet-image alignment device, wherein, described driver is by being made up of some transistor circuits.
In above-mentioned printer nozzle head automatic sheet-image alignment device, wherein, described detection signal interface comprises some OPTICAL SENSORSs.
The present invention is owing to be provided with an image recognition optical system, utilize the official post positioning control system of the two position to control its detent mechanism again and hold film, and make this nozzle head wafer do that slightly rotation, horizontal direction moves or vertical direction moves and makes the film and the aligned in position of nozzle head wafer that is attached on the suction nozzle, thereby the replacement human eye goes to judge the position of film and nozzle head wafer; Herewith, can replace many manpowers thus, shorten work flow, improve production capacity.
By the description of a following embodiment to printer nozzle head automatic sheet-image alignment device of the present invention, can more specifically understand purpose of the present invention, design feature and advantage in conjunction with its accompanying drawing.Wherein, accompanying drawing is:
Fig. 1 is that the semi-automatic film of prior art is to the level controlling system schematic diagram.
Fig. 2 is that the automatic film of the printer nozzle head automatic sheet-image alignment device that proposes according to the present invention is to the level controlling system calcspar.
Fig. 3 is film and the nozzle head wafer contraposition step schematic diagram according to the printer nozzle head automatic sheet-image alignment device of the present invention's proposition.
Fig. 4 is the control flow chart according to the printer nozzle head automatic sheet-image alignment device of the present invention's proposition.
In the present invention, above-mentioned position coder, motor, OPTICAL SENSORS, personal computer, charge-coupled image sensor etc. are prior art, can implement according to this by being familiar with this operator, so this case is not added to give unnecessary details.And desire to treat that expositor in detail is the system block diagrams of its composition and operating principle thereof etc.
See also Fig. 2.Fig. 2 is the system block diagrams of printer nozzle head automatic sheet-image alignment device of the present invention, and it places on the nozzle head wafer 21 with a film 22, and it comprises an image recognition optical system 90 and a positioning control system 91.
This image recognition optical system 90 is used in this film 22 and this nozzle head wafer 21 and puts read the position of this film and the position of this nozzle head wafer when a location mechanism 93.This positioning control system 91 is electrically connected with this image recognition optical system, the above-mentioned detent mechanism 93 of its tool, and this positioning control system 91 is controlled the position that this detent mechanism 93 adjusts this nozzle head wafer according to the error between the position of the position of being read this film by this image recognition optical system 90 and this nozzle head wafer this film is placed on this nozzle head wafer.
This image recognition optical system comprises a charge-coupled image sensor 23 (CCD) and an image processor 24 in the above-mentioned printer nozzle head automatic sheet-image alignment device.This charge-coupled image sensor 23 (CCD) reads the image of this film and this nozzle head wafer in order to when this film 22 and this nozzle head wafer 21 are put in this detent mechanism 93.This image processor 24 is electrically connected with this charge-coupled image sensor, when reading the image of this film and this nozzle head wafer on this charge-coupled image sensor, discerns the position of this film 22 and this nozzle head wafer 21.
The picture signal of charge-coupled device (CCD) scanning comprises above-mentioned film and nozzle head wafer.In order to differentiate the position, be respectively equipped with two marks at film and cornerwise two tops of nozzle head wafer, and the subsequent images processor is put film on the nozzle head wafer for positioning control system 91 in order to the position of differentiating this two mark promptly.In fact, this image processor is the part of whole system software because the usefulness of image is handled in its special use in computer, so be referred to as image processor, and similar with charge-coupled image sensor be image recognition optical system 90.
This positioning control system also comprises a controller 25, a driver 26 and a detection signal interface 30 in the above-mentioned printer nozzle head automatic sheet-image alignment device except the above-mentioned detent mechanism 93 of tool.This controller 25 is electrically connected with this image recognition optical system 90, control maincenter for this positioning control system 91, and according to by the error between the position of the position of this film 22 and this nozzle head wafer controlling this detent mechanism, and the signal of this image processor that receives image recognition optical system is with the position of differentiating this film and the position of this nozzle head wafer.This driver 26 is electrically connected with this controller, in order to the control signal that strengthens this controller to drive this detent mechanism.This detects signal interface 30 and is electrically connected with this controller, in order to the position signal of this detent mechanism of sensing.
The control maincenter of whole positioning control system 91 is this controller 25, and controller 25 will be received from the image recognition optical system, and the poor of the two calculated, driver 26 is sent the signal of driving in the position of film and nozzle head wafer in controller 25.
This controller is a personal computer in the above-mentioned printer nozzle head automatic sheet-image alignment device.The advantage that with the personal computer is controller is, except seeing through the outside parts of output inputting interface control, also can use the skill of software to make relevant data and handle, as the control of material, the analysis of manufacturing capability, yield analysis etc.For example, people can also can add one and judge whether material has flaw before automated graphics contraposition control in program, if there is flaw then can carry out the work of analytic statistics, in advance bad material were got rid of, and improved quality.
This driver is by being made up of some transistor circuits in the above-mentioned printer nozzle head automatic sheet-image alignment device.Because the drive current of the control signal that personal computer provided is very little, is not enough to drive exterior motor, so between the controller of motor and personal computer, can add a driver to be increased to enough drive currents.In the present embodiment, this driver can be AT6400; Certainly, main control element is a transistor etc.
This detection signal interface comprises some OPTICAL SENSORSs 30 in the above-mentioned printer nozzle head automatic sheet-image alignment device.This some OPTICAL SENSORSs interface is in order to detect the position (being the position of nozzle head wafer) of motor on the detent mechanism at that time, so that the controller of personal computer can be according to comparing with the position of above-mentioned image recognition optical system film, and the controlling mechanism of carrying out contraposition.
This detent mechanism 93 comprises vertical (Y) angle (θ) shaft platform 28 of a level (X), a suction nozzle 40, motor 27 and position coder 29 in the above-mentioned printer nozzle head automatic sheet-image alignment device.Vertical (Y) angle (θ) shaft platform of this level (X) is in order to putting this nozzle head wafer, and adjusts the position of this nozzle head wafer.This suction nozzle is positioned at vertical (Y) angle (θ) shaft platform of this level (X) top, in order to hold this film.This motor 27 is connected with this level (X) vertical (Y) angle (θ) shaft platform, activates vertical (Y) angle (θ) shaft platform of this level (X) when placing vertical (Y) angle (θ) shaft platform of this level (X) and this suction nozzle to hold this film at this nozzle head wafer to make the position of this nozzle head wafer identical with the position of this film.This position coder 29 is connected with this level (X) vertical (Y) angle (θ) shaft platform, in order to when vertical (Y) angle (θ) shaft platform of this level of this motor activated (X), makes this detections signal interface basis to solve the position signal of above-mentioned detent mechanism.
Utilize suction nozzle 40, can hold film, and utilize vertical (Y) angle (θ) shaft platform of level (X), can reach the purpose of adjusting the nozzle head wafer position.Secondly, because level is arranged, vertically reach angle, the motor of use will be not only one, and also not only one of position coder in like manner at level and vertical two positions, can adopt the optics chi, and, can adopt optical angle encoder (OpticalEncoder) at angle value.The resolution of position coder is a big key element of decision precision, the present invention relates to high-accuracy control, and the resolution of the position coder that it adopted must be enough greatly.
See also Fig. 3, printer nozzle head automatic sheet-image alignment device as described, the position A of this nozzle head wafer wherein, B is diagonally opposing corner 2 level and upright positions with respect to this horizontal vertical coordinate of this film, and an angle (θ with respect to the trunnion axis of this horizontal vertical coordinate that tiltedly Xie Erdian is calculated by this film
1).And the position of this nozzle head wafer is 2 C of diagonally opposing corner of this nozzle head wafer, D is with respect to the level and the upright position of a horizontal vertical coordinate, and the angle (θ with respect to the trunnion axis of this horizontal vertical coordinate that calculates of 2 of diagonally opposing corners by this nozzle head wafer
2).
Among Fig. 3,31 to 36 is to adjust nozzle head wafer 21 to make this film 22 contrapositions signal thereon.
At first 31, the mechanism that sees through feeding makes suction nozzle hold a film 22, can be judged the positional value of this film by above-mentioned image identification system on the XY coordinate, AB θ
1This moment, film 21 was held by suction nozzle.
Follow 32,2 of AB are marked, think the purpose of adjusting the nozzle head wafer at the XY coordinate.
Come 33 again, see through feed mechanism nozzle head wafer 22 is served platform.At this moment, can judge the positional value of this nozzle head wafer, CD θ by above-mentioned image identification system
2, suppose that the position of film was unsatisfactory when suction nozzle held film.
Follow 34, utilize θ
1With θ
2Difference, make the controller of personal computer issue a signal to driver and arrive detent mechanism again, do the action of rotation with the motor on the control detent mechanism, adjust the angle θ of nozzle head wafer
2, make the angle θ of itself and film
1Consistent.
Come 35 again, utilize the difference of horizontal direction, the nozzle head wafer is moved to the left.
Last 36, utilize the difference of vertical direction, the nozzle head wafer is moved down and finish the action of contraposition.At this moment, film correctly is positioned on the nozzle head wafer.
See also Fig. 4.In the control flow chart of contraposition, can divide six steps substantially.In this flow chart, come contraposition in the mode of moving nozzle head wafer.In fact, this is the another kind of mode of contraposition.
Step 1: by feed mechanism, nozzle head wafer and film are served respectively on platform and the suction nozzle, simultaneously, the position of nozzle head wafer is determined by platform, and the position of film is determined by suction nozzle.Certainly, also can optionally read the usefulness of its image in order to analysis with charge-coupled image sensor.
Step 2: the image of obtaining film with charge-coupled image sensor.
Step 3: the position AB θ that obtains film by image processor
1, and be set at desired value, and measured value is the position CD θ that puts the nozzle head wafer on platform
2
Step 4: utilize the difference (difference) of said two devices position, drive motor makes the position of nozzle head wafer and holds the position consistency of the film on suction nozzle, and reads measured value simultaneously.
Step 5: if measured value and desired value are inconsistent, the action of then revising.The purpose of revising is to make the position of the two more aligned, when unanimity, then carries out next step.
Step 6: film is put on the nozzle head wafer, promptly accuse the action of finishing contraposition at last.
Above-mentioned in the method for position, move another element as long as fix one of them.That is, if mobile film then needs the fixed nozzle head wafer; If the moving nozzle head wafer then needs mobile film, two method principles there is no difference.
By above-mentioned diagram and explanation as can be known, printer nozzle head automatic sheet-image alignment device of the present invention is to utilize personal computer control one location mechanism, makes a film and a nozzle head wafer alignment and puts; The action of this printer nozzle head film automatic image alignment device at first is earlier the position of this nozzle head wafer and this film to be found out with the technology of an image processing, utilize the poor of the two again, drive this detent mechanism and adjust the position of one of them, make the position of the two identical, this film is stacked and placed on this nozzle head wafer at last, to reach the purpose of automatic image contraposition, promptly, utilize technology that image handles must keep a close watch on the shortcoming that screen could contraposition, thereby effectively replace manpower and improved accuracy and productivity to improve human eye in the contraposition of prior art semi-automatic image.
Claims (6)
1. printer nozzle head automatic sheet-image alignment device with so that a film places on the nozzle head wafer, is characterized in that comprising with lower member:
One image recognition optical system is made up of a charge-coupled image sensor and an image processor, and wherein, described charge-coupled image sensor reads the image of this film and this nozzle head wafer in order to when film and nozzle head wafer are put at detent mechanism; Described image processor is electrically connected with charge-coupled image sensor, when reading the image of film and nozzle head wafer at charge-coupled image sensor, and the identification signal that charge-coupled image sensor transmitted;
One location mechanism, it places the input of described image recognition optical system, form by vertical (Y) angle (θ) shaft platform of a level (X), a suction nozzle, motor and position coder, wherein, vertical (Y) angle (θ) shaft platform of described level (X) is in order to putting the nozzle head wafer, and can do level and vertical adjustment; Described suction nozzle is positioned at vertical (Y) angle (θ) shaft platform of level (X) top, in order to hold film; Described motor is connected with this level (X) vertical (Y) angle (θ) shaft platform, in order to the displacement of vertical (Y) angle (θ) shaft platform of this level of transmission (X), makes it identical with the position of film with the position of adjusting the nozzle head wafer; Described position coder is connected with this level (X) vertical (Y) angle (θ) shaft platform, in order to the position signal of whole detent mechanism to be provided;
One controller, it is electrically connected with this image recognition optical system, is the control maincenter of this positioning control system, in order to controlling this detent mechanism, and receives the signal and the position of differentiating film and nozzle head wafer of image processor;
One driver, it is electrically connected with this controller, in order to the control signal that strengthens this controller to drive this detent mechanism; And
One detects the signal interface, and it is electrically connected with controller, in order to receiving position encoder signal, again this signal is sent to controller after the identification.
2. printer nozzle head automatic sheet-image alignment device as claimed in claim 1, it is characterized in that: the position of described film is diagonally opposing corner level and upright position with respect to a horizontal vertical coordinate of this film at 2 o'clock, and an angle with respect to the trunnion axis of this horizontal vertical coordinate that calculates according to 2 of diagonally opposing corners by this film.
3. printer nozzle head automatic sheet-image alignment device as claimed in claim 2, it is characterized in that: the position of described nozzle head wafer is diagonally opposing corner level and upright positions with respect to this horizontal vertical coordinate of this nozzle head wafer at 2, and an angle with respect to the trunnion axis of this horizontal vertical coordinate that calculates according to 2 of diagonally opposing corners by this nozzle head wafer.
4. printer nozzle head automatic sheet-image alignment device as claimed in claim 1, it is characterized in that: described controller is a personal computer.
5. printer nozzle head automatic sheet-image alignment device as claimed in claim 1 is characterized in that described driver is by being made up of some transistor circuits.
6. printer nozzle head automatic sheet-image alignment device as claimed in claim 1 is characterized in that described detection signal interface comprises some OPTICAL SENSORSs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97123003 CN1073508C (en) | 1997-11-24 | 1997-11-24 | Automatic sheet-image aligning device of printer jet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97123003 CN1073508C (en) | 1997-11-24 | 1997-11-24 | Automatic sheet-image aligning device of printer jet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1218196A CN1218196A (en) | 1999-06-02 |
| CN1073508C true CN1073508C (en) | 2001-10-24 |
Family
ID=5176934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97123003 Expired - Fee Related CN1073508C (en) | 1997-11-24 | 1997-11-24 | Automatic sheet-image aligning device of printer jet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1073508C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5187895B2 (en) * | 2008-07-31 | 2013-04-24 | 武蔵エンジニアリング株式会社 | Nozzle position correction mechanism and coating apparatus including the same |
| EP2632673B1 (en) * | 2010-10-26 | 2014-06-18 | EV Group GmbH | Method and device for producing a lens wafer |
| CN110077128B (en) * | 2018-05-22 | 2021-03-30 | 广东聚华印刷显示技术有限公司 | Ink-jet printing warning method and device, computer equipment and storage medium |
-
1997
- 1997-11-24 CN CN 97123003 patent/CN1073508C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1218196A (en) | 1999-06-02 |
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Granted publication date: 20011024 |