CN108973311A - Automatic aligning screen printer and alignment method - Google Patents
Automatic aligning screen printer and alignment method Download PDFInfo
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- CN108973311A CN108973311A CN201810783860.5A CN201810783860A CN108973311A CN 108973311 A CN108973311 A CN 108973311A CN 201810783860 A CN201810783860 A CN 201810783860A CN 108973311 A CN108973311 A CN 108973311A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
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Abstract
The invention discloses automatic aligning screen printer and alignment methods, including mainframe, Printing Department set on the mainframe top, platform board inside the mainframe and it is located at the automatic contraposition device being fixedly connected by mounting plate with platform board, computer touch screen set on mainframe top, it is characterized in that, the mechanical part of the automatic contraposition device is by platform board, left slide unit, right slide unit and to bit platform form, the platform board is the connector of left slide unit and right slide unit and the Printing Department, the components of system as directed of the automatic contraposition device is made of automatic decimal alignment system and feedback device, the mainframe side is equipped with electric box and control panel.The present invention utilizes CCD automatic decimal alignment system, solves the problems, such as that screen printer precision in single printing is difficult to control, realizes precision controlling automation, and significantly improve the length of the precision and continuous printing printed every time.
Description
Technical field
The present invention designs screen printer field, and in particular to automatic aligning screen printer and alignment method.
Background technique
Current silk-screen technology is mainly printed to mark by stamping MARK point or punching simultaneously when printing for the first time
Position of the content on material, so that electronic eyes when secondary printing is can capture the precision that positioning improves X-direction.When printing
Come the precision of Y-direction when improving silk-screen and angle A offset is eliminated using automatic deviation correction (side) equipment.The above technology can generate two sides
The problem of face: first, the spacing inaccuracy of MARK point or punching is generated the problem that when printing for the first time, this is because printing for the first time
When, no MARK point location draws material device due to being motor circular motion to drive operating, not can avoid the calculation formula using π D
Material length is drawn to calculate, and π is an irrational number, then causes calculated result to there is error always, and this error can be with
It is continuous to draw the increase for expecting total length and be superimposed, so that spacing is constantly increased or is constantly reduced, this depends on the value of π.In addition, drawing
The drawings material movement of material device be all it is intermittent, speed increases from 0 again prominent to the short time after setting speed suddenly in a very short period of time
So drop to 0 value, this will lead to material relative to draw material device can slide one section of uncertain distance, in addition draw material device itself by
Practical drawing material length can be made to be more than setting value in the effect of inertia, so keep MARK point or the spacing of punching more uncertain, this
Lead to the material limited length of current silk-screen function continuous printing, second, the automatic deviation correction (side) when printing is difficult together substantially
When solve Y and A deviation because oneself can inherently deflect an angle while it corrects for Y, Y has again while correcting for A
Offset, it can only integrally control the relative accuracy of a batch printing, but be difficult to ensure the precision printed each time.And electronic eyes is limited
In the deviation (industry full accuracy is in ± 0.1mm or so at present) that precision itself generates, and current silk-screen technology can not be
It is corrected in subsequent printing process, it is also difficult to guarantee the precision of the X axis of single printing.It traces it to its cause: current technology
Contraposition is realized to designated position mainly by mobile material, but since material is flexible, with retractility and irregular, to sending
Expect also very high with the required precision of material pulling mechanism, leads to that printing precision is difficult to be guaranteed or economy is very low, in addition, showing
Some correction control and electronic eyes contraposition opened loop control is belonged to for entire silkscreen system, can not feed back each components and device by
In the deviation that precision problem itself generates, can not be modified, these deviations that can be superimposed in continuous printing will be serious
Product quality is influenced, and these deviations do not allow in secondary printing.
Summary of the invention
An object of the present invention utilizes CCD automatic decimal alignment system there is provided a kind of, solves screen printer and prints in single
The uncontrollable problem of precision in brush realizes precision controlling automation, and significantly improves the automatic of the precision printed every time
Align screen printer and alignment method.
The automatic aligning screen printer, including mainframe, the Printing Department set on the mainframe top are set to inside the mainframe
Platform board and be located at the automatic contraposition device being fixedly connected by mounting plate with platform board, the computer set on mainframe top
The mechanical part of touch screen, the automatic contraposition device by platform board, left slide unit, right slide unit and forms bit platform, described
Platform board be left slide unit and right slide unit and the Printing Department connector, the components of system as directed of the automatic contraposition device by
Automatic decimal alignment system and feedback device composition, the mainframe side are equipped with electric box and control panel.
Preferably, the difference of left slide unit Yu the right slide unit is that left slide unit is equipped with X-axis stepper motor, X-axis shaft coupling
Device, left X-axis screw rod and left X-axis feed screw nut and be not provided on the right slide unit with upper-part, the left slide unit is equipped with
Left X-axis bottom plate is fixed with left X-axis slide rail on the left X-axis bottom plate, and the X-axis stepper motor is fixed on left X-axis bottom plate
It is connect by shaft coupling with left X-axis screw rod.
Preferably, the left X-axis screw rod connect with angular contact bearing simultaneously and is fixed by bushing and locking nut axial
Position, the angular contact bearing are fixed in the bearing hole of left X-axis bottom plate by X-axis bearing cover, the X-axis bearing cover
Be fixed on left X-axis bottom plate, be equipped with above the left X bottom plate the fixed four left X-axis slide blocks of left X-axis slide unit and its bottom with
Fixed left X sliding rail is slidably connected to realize what left X-axis slide unit bottom mobile in X-direction, described was fixed on left X-axis bottom plate
The left X-axis screw rod installed on left X-axis feed screw nut and left X-axis bottom plate is slidably connected the work for making left X-axis slide unit in X-axis stepper motor
The movement of the distance to a declared goal in the positive negative direction of X-axis may be implemented under, the y-axis stepper motor is fixed on left X-axis slide unit.
Preferably, the y-axis stepper motor is connect by shaft coupling with left Y-axis screw rod, and the left Y-axis screw rod is simultaneously
It is connect with angular contact bearing and axial position is fixed by bushing and locking nut, the angular contact bearing is by Y-axis bearing cover
It is fixed in the bearing hole of left X-axis bottom plate, the Y-axis bearing cover is fixed on left Y-axis bottom plate, the left Y-axis sliding rail
Be fixed on left X-axis slide unit, four left Y-axis sliding blocks that the left Y-axis slide unit is above left X-axis slide unit and its bottom is fixed with
Fixed left Y-axis sliding rail is slidably connected to realize the movement in Y direction on left X-axis slide unit, and the left Y-axis slide unit bottom is solid
It is left Y-axis slide unit in y-axis stepper motor that the left Y-axis screw rod installed on fixed left Y-axis feed screw nut and left X-axis slide unit, which is slidably connected,
Under the action of may be implemented the movement of the distance to a declared goal in the positive negative direction of Y-axis, the left Y-axis slide unit and left slide unit axis is fixed connects
It connects.
Preferably, the angular contact bearing is mounted between left slide unit bearing block and left slide unit bearing block, the left side
Slide unit bearing block is fixedly connected with platform board, and the left slide unit axis is equipped with internal bearing cover, on the left slide unit bearing block
Equipped with bearing cover, multiple photoelectric sensors, the left slide unit and right slide unit are installed between the left slide unit and right slide unit
Between barn door is installed, the combination of the photoelectric sensor and barn door moves for realizing the position locking of origin with camera
The restriction of dynamic range.
Preferably, the platform board is fixedly connected by CCD camera mounting plate with CCD platform, the CCD camera peace
Loading board is sliding equipped with a pair of of sliding rail, bearing block structure a pair, multiple photoelectric sensors, a pair of of stepper motor, a pair of of screw rod, a pair
Rail, a pair of of CCD camera and a pair of of feed screw nut, stepper motor described in a pair are separately fixed on bearing block structure, Yi Duisuo
The screw rod stated is connect with motor axis connection and by bushing with locking nut with deep groove ball bearing by shaft coupling, described in a pair
Sliding block is slidably connected with sliding rail respectively, and CCD camera mounting plate described in a pair is separately fixed on sliding block, screw rod described in a pair
Nut is separately fixed on CCD camera mounting plate and is slidably matched respectively with screw rod simultaneously, and CCD camera described in a pair is solid respectively
It is scheduled on CCD camera mounting plate, barn door described in a pair is separately fixed on CCD camera mounting plate.
Preferably, the feedback device is on CCD feedback device and installation to mainframe.
Automatic aligning screen printer alignment method, comprising the following steps:
(1) air draught feeder and drawing expect that equipment provides tension for material, keep material straight, the honeycomb fashion on silk-screen machine host
Airdraft plate adsorbs material, keeps material smooth, and material device is drawn to drag material.
(2) when printing for the first time, CCD automatic decimal alignment system is closed, CCD feedback device will draw the practical drawing material distance of material device
The practical deviation for drawing material distance and set distance of computer analytical calculation is fed back to image information, and then adjusts and draws material motor
Driving signal, amendment draw material length.
(3) before secondary printing starts, CCD camera spacing and screen frame position is adjusted, MARK point on screen frame is made to appear in phase
Should be fixed within the scope of diameter 10mm in the visual field of left and right camera, operation computer is to the MARK point in the camera fields of view of left and right into rower
It is fixed.
(4) make the MARK point alignment of material using the position for adjusting CCD camera and material after CCD feedback camera positioning materials
CCD camera calibration point within the scope of diameter 10mm, checks position with camera image, later can curing ink start to print, system
By before each printing it is automatic calculate material MARK point and before camera calibration value between deviation and output signal to stepping
Motor corrects deviation, and whether feedback modifiers result reaches required precision to CCD camera simultaneously, reaches requirement and starts to print, no
Second-order correction is then carried out until reaching required precision.
The invention has the benefit that the present invention utilizes CCD feedback device, solving screen printer, to be unable to printing length larger
Paper roll the problem of, and then reduce industry upstream to the cost of Material distribution, reduce the frequency reloaded in print production, save
Time improves production efficiency, and the present invention utilizes CCD automatic decimal alignment system, and it is difficult to solve screen printer precision in single printing
The problem of to control, realizes precision controlling automation, and significantly improves the precision printed every time.
Detailed description of the invention
Fig. 1 is complete machine structure schematic diagram of the invention.
Fig. 2 is the top view of automatic contraposition device of the invention.
Fig. 3 is the front view of automatic contraposition device of the invention.
Fig. 4 is the side view of automatic contraposition device of the invention.
Fig. 5 is the flow chart of automatic contraposition device of the invention.
In figure: platform board 1, left slide unit 2, X-axis stepper motor 201, left X-axis bottom plate 202, left X-axis screw rod 203, left X-axis silk
Stem nut 204, left Y-axis screw rod 205, left Y-axis sliding rail 206, left Y-axis slide unit 207, left slide unit bearing block 209, y-axis stepper motor
209, left slide unit bearing cover 210, left Y-axis shaft coupling 211, angular contact bearing 212, bearing cover 213, left X-axis slide unit 214,
Left slide unit axis 215, right slide unit 3, photoelectric sensor 4, barn door 5, flange mounting hole 6, CCD camera mounting plate 7, CCD camera
701, screw rod 702, bearing block structure 703, stepper motor 704, mainframe 8, computer touch screen 9, CCD feedback device 10, electrical
Case 11, Printing Department 12, control panel 13.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
In conjunction with shown in Fig. 1 to Fig. 4, the automatic aligning screen printer, including mainframe 8, the printing set on 8 top of mainframe
Portion 12, platform board 1 inside the mainframe 8 and is located at the automatic aligning being fixedly connected by mounting plate with platform board 1
Device, the computer touch screen 9 set on 8 top of mainframe, the mechanical part of the automatic contraposition device is by platform board 1, left cunning
Platform 2, right slide unit 3 and to bit platform form, the platform board 1 is the company of left slide unit 2 and right slide unit 3 and the Printing Department 12
The components of system as directed of fitting, the automatic contraposition device is made of automatic decimal alignment system and feedback device, the mainframe 8 one
Side is equipped with electric box 11 and control panel 13.
Mainframe 8 is implement porter, is printing plane at the top of mainframe 8, and CCD automatic decimal alignment system is installed in mainframe
In 8 the second ladder plane, wherein CCD camera 701 is protruded into inside mainframe 8, is mounted below printing plane, is caught through glass
Material image is caught, support post is gone up and down by silk-screen portion and connects CCD automatic decimal alignment system and Printing Department 12, makes entirely to print
Brush portion 12 can load and unload halftone screen frame, print head liter when releasing with CCD para-position system synchronizing moving, 12 lifting cylinder of Printing Department
Sending down abnormally ascending cylinder can carry out ink adjustment when releasing, and CCD feedback device is mounted on the rack positioned at printing zone downstream position, works as silk-screen
When machine is used for required precision not high single color printing, CCD automatic decimal alignment system can be closed.
Platform board 1 is the connector of left slide unit 2 or right slide unit 3 and host Printing Department, and function has the movement of transmitting slide unit
It acts to Printing Department 8, the effect of gravity, torque and impact is born, in the X-axis stepper motor 201 of left slide unit or the Y-axis of left slide unit
Stepper motor 209 or right slide unit y-axis motor keep right slide unit driven in X-direction when rotating.
The difference of left slide unit 2 Yu the right slide unit 3 be left slide unit be equipped with X-axis stepper motor 201, X-axis shaft coupling,
Left X-axis screw rod 203 and left X-axis feed screw nut 204 and be not provided on the right slide unit 3 with upper-part, on the left slide unit 2
Equipped with left X-axis bottom plate 202, left X-axis slide rail is fixed on the left X-axis bottom plate 202, the X-axis stepper motor 201 is fixed
It is connect by shaft coupling with left X-axis screw rod 203 on left X-axis bottom plate 202.
The left X-axis screw rod 203 connect with angular contact bearing 212 simultaneously and by the fixed axial position of bushing and locking nut
It sets, the angular contact bearing 212 is fixed in the bearing hole of left X-axis bottom plate 202 by X-axis bearing cover 213, the X-axis
Bearing cover 213 is fixed on left X-axis bottom plate 202, is equipped with left X-axis slide unit above the left X bottom plate 202 and its bottom is fixed
Four left X-axis slide blocks and left X-axis bottom plate 202 on fixed left X sliding rail be slidably connected it is mobile in X-direction to realize, it is described
The fixed left X-axis feed screw nut 204 in left X-axis slide unit bottom and left X-axis bottom plate 202 on left X-axis screw rod 203 sliding installed connect
Meet the movement for making left X-axis slide unit that the distance to a declared goal in the positive negative direction of X-axis may be implemented under the action of X-axis stepper motor 201, institute
The y-axis stepper motor 209 stated is fixed on left X-axis slide unit.
The y-axis stepper motor 209 is connect by shaft coupling with left Y-axis screw rod 205, and the left Y-axis screw rod 205 is same
When connect with angular contact bearing 212 and by the fixed axial position of bushing and locking nut, the angular contact bearing 212 is by bearing
Outer cover 213 is fixed in the bearing hole of left X-axis bottom plate 202, and the bearing cover 213 is fixed on left Y-axis bottom plate, described
Left Y-axis sliding rail 206 is fixed on left X-axis slide unit 214, and the left Y-axis slide unit 207 is above left X-axis slide unit 214 and its bottom
Fixed left Y-axis sliding rail 206 is slidably connected to realize in Y direction on the left Y-axis sliding block of fixed four and left X-axis slide unit 207
Movement, the left Y-axis screw rod installed on the fixed left Y-axis feed screw nut in left 207 bottom of Y-axis slide unit and left X-axis slide unit
It is that left Y-axis slide unit 207 may be implemented to specify in the positive negative direction of Y-axis under the action of y-axis stepper motor 209 that 205, which are slidably connected,
The movement of distance, the left Y-axis slide unit 207 are fixedly connected with left 2 axis of slide unit.
The angular contact bearing 212 is mounted between left slide unit axis 215 and left slide unit bearing block 209, the left cunning
Platform bearing block 209 is fixedly connected with platform board 1, and the left slide unit axis 215 is equipped with internal bearing cover, the left slide unit bearing
Seat 209 is equipped with bearing cover 210, installs multiple photoelectric sensors 4, the left side between the left slide unit 2 and right slide unit 3
Barn door 5 is installed, the combination of the photoelectric sensor 4 and barn door 5 is for realizing origin between slide unit 2 and right slide unit 3
Position locking and the restriction of camera moving range.
3 working principle of left slide unit 2 and right slide unit: left and right slide unit is one of the critical component of automatic decimal alignment system, main function
Can to execute correction movement, and the amount of spin of the size of deviation and motor be originated from computer to the analysis of CCD camera image with
It calculates, computer then sends specific pulse signal and realizes that the rotation of specified amount carrys out correction of deviation to motor.
Left slide unit and right slide unit theory of mechanics: 1, when only X-axis motor rotation left and right y-axis motor locks, in X-axis screw rod and X
Under the cooperation of axial filament stem nut, for platform in X1, the amount of movement in the direction X2 is identical, to make Printing Department's screen frame relative to the whole of material
Body position X-direction offset, correct X-direction deviation, 2, left and right y-axis motor equivalent rotation X-axis motor-locking when, in Y-axis
Under the cooperation of screw rod and Y-axis feed screw nut, amount of movement of the platform in the direction Y1, Y2 is identical, thus make Printing Department's screen frame relative to
The integral position of material corrects Y direction deviation, 3, left and right y-axis motor inequality rotation X-axis electromechanical locks in the offset of X-direction
Periodically, under the cooperation of Y-axis screw rod and Y-axis feed screw nut, amount of movement of the platform in the direction Y1, Y2 be not identical, and platform is in the side X2
To amount of movement be it is driven, at this moment left and right slide unit axis center line will form an angle with X-direction, thus make screen frame relative to
Material deflects certain angle, corrects angle A deviation, and 4, when X-axis motor and left and right y-axis motor are simultaneously in the specific instruction of computer
Under (by algorithm calculate) co-operating when just can solve three kinds of above-mentioned Deviation Types, to realize automatic aligning.
The platform board is fixedly connected by CCD camera mounting plate 7 with CCD platform, the CCD camera mounting plate 7
Be equipped with a pair of a pair of of sliding rail, bearing block structure 703, multiple photoelectric sensors, electric 704 machines of a pair of of stepping, a pair of of screw rod 702,
A pair of of sliding rail, a pair of of CCD camera 701 and a pair of of feed screw nut, stepper motor 704 described in a pair are separately fixed at bearing block knot
On structure, screw rod 702 described in a pair passes through shaft coupling and motor axis connection and passes through bushing and locking nut and deep groove ball bearing
It connects, sliding block described in a pair is slidably connected with sliding rail respectively, and CCD camera mounting plate 7 described in a pair is separately fixed at sliding block
On, feed screw nut described in a pair is separately fixed on CCD camera mounting plate and is slidably matched respectively with screw rod simultaneously, Yi Duisuo
The CCD camera stated is separately fixed on CCD camera mounting plate 7, and barn door 5 described in a pair is separately fixed at CCD camera installation
On plate 7.
The feedback device is on CCD feedback device 10 and installation to mainframe.
Computer realizes the specified rotation of motor to stepper motor certain pulses signal, and then rotates screw rod to drive
Feed screw nut is mobile to make camera be moved to designated position to align the MARK point of material, due to the MARK of same batch materials
Point position is identical, this operation only is likely to carry out when material is printed in replacement, and the combination of photoelectric sensor and barn door is for real
The restriction of the position locking and camera moving range of existing origin.
As shown in connection with fig. 5, automatic aligning screen printer alignment method, comprising the following steps:
(1) air draught feeder and drawing expect that equipment provides tension for material, keep material straight, the honeycomb fashion on silk-screen machine host
Airdraft plate adsorbs material, keeps material smooth, and material device is drawn to drag material.
(2) when printing for the first time, CCD automatic decimal alignment system is closed, CCD feedback device will draw the practical drawing material distance of material device
The practical deviation for drawing material distance and set distance of computer analytical calculation is fed back to image information, and then adjusts and draws material motor
Driving signal, amendment draw material length.
(3) before secondary printing starts, CCD camera spacing and screen frame position is adjusted, MARK point on screen frame is made to appear in phase
Should be fixed within the scope of diameter 10mm in the visual field of left and right camera, operation computer is to the MARK point in the camera fields of view of left and right into rower
It is fixed.
(4) make the MARK point alignment of material using the position for adjusting CCD camera and material after CCD feedback camera positioning materials
CCD camera calibration point within the scope of diameter 10mm, checks position with camera image, later can curing ink start to print, system
By before each printing it is automatic calculate material MARK point and before camera calibration value between deviation and output signal to stepping
Motor corrects deviation, and whether feedback modifiers result reaches required precision to CCD camera simultaneously, reaches requirement and starts to print, no
Second-order correction is then carried out until reaching required precision.
The present invention utilizes CCD feedback device, solves the problems, such as that screen printer is unable to the biggish paper roll of printing length, and then subtract
Few industry upstream reduces the frequency reloaded in print production, has saved the time to the cost of Material distribution, improves production effect
Rate, the present invention utilize CCD automatic decimal alignment system, solve the problems, such as that screen printer precision in single printing is difficult to control, realize
Precision controlling automation, and significantly improve the precision printed every time.CCD feedback device and CCD automatic decimal alignment system are effective
The installation space that rack is utilized, abandoned the devices such as electronic eyes and automatic deviation correction, saved production site, present invention design
Alloing operator, intuitively contraposition printing process, observation real-time dynamic information carry out phase every time for observation in touch display screen
Parameter setting is answered, keeps human-computer interaction easier.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (8)
1. automatic aligning screen printer, including mainframe, the Printing Department set on the mainframe top is flat inside the mainframe
Platen and it is located at the automatic contraposition device being fixedly connected by mounting plate with platform board, the computer touch-control set on mainframe top
Screen, which is characterized in that the mechanical part of the automatic contraposition device is by platform board, left slide unit, right slide unit and to bit platform group
At the platform board is the connector of left slide unit and right slide unit and the Printing Department, and the automatic contraposition device is
System part is made of automatic decimal alignment system and feedback device, and the mainframe side is equipped with electric box and control panel.
2. automatic aligning screen printer according to claim 1, which is characterized in that the difference of left slide unit Yu the right slide unit
It is that left slide unit is equipped with X-axis stepper motor, X-axis shaft coupling, left X-axis screw rod and left X-axis feed screw nut and the right slide unit
On be not provided with upper-part, the left slide unit is equipped with left X-axis bottom plate, and it is sliding that left X-axis is fixed on the left X-axis bottom plate
Rail, the X-axis stepper motor, which is fixed on left X-axis bottom plate, to be connect by shaft coupling with left X-axis screw rod.
3. automatic aligning screen printer according to claim 2, which is characterized in that the left X-axis screw rod is simultaneously and corner connection
Contact bearing connection simultaneously fixes axial position by bushing and locking nut, and the angular contact bearing is fixed on by X-axis bearing cover
In the bearing hole of left X-axis bottom plate, the X-axis bearing cover is fixed on left X-axis bottom plate, is equipped with above the left X bottom plate
Fixed left X sliding rail is slidably connected to realize in four fixed left X-axis slide blocks of left X-axis slide unit and its bottom and left X-axis bottom plate
In X-direction movement, the left X-axis feed screw nut that the left X-axis slide unit bottom is fixed and the left X-axis installed on left X-axis bottom plate
Screw rod, which is slidably connected, makes left X-axis slide unit that the distance to a declared goal in the positive negative direction of X-axis may be implemented under the action of X-axis stepper motor
Mobile, the y-axis stepper motor is fixed on left X-axis slide unit.
4. automatic aligning screen printer according to claim 3, which is characterized in that the y-axis stepper motor passes through shaft coupling
Device is connect with left Y-axis screw rod, and the left Y-axis screw rod is connect and by bushing and locking nut fixing axle simultaneously with angular contact bearing
To position, the angular contact bearing is fixed in the bearing hole of left X-axis bottom plate by Y-axis bearing cover, outside the Y-axis bearing
Lid is fixed on left Y-axis bottom plate, and the left Y-axis sliding rail is fixed on left X-axis slide unit, and the left Y-axis slide unit is sliding in left X-axis
Fixed left Y-axis sliding rail is slidably connected to realize on above platform and its bottom fixed four left Y-axis sliding blocks and left X-axis slide unit
The left Y-axis installed on the movement of Y direction, the fixed left Y-axis feed screw nut in the left Y-axis slide unit bottom and left X-axis slide unit
Screw rod, which is slidably connected, makes left Y-axis slide unit that the distance to a declared goal in the positive negative direction of Y-axis may be implemented under the action of y-axis stepper motor
Mobile, the left Y-axis slide unit is fixedly connected with left slide unit axis.
5. automatic aligning screen printer according to claim 4, which is characterized in that the angular contact bearing is mounted on left cunning
Between platform bearing block and left slide unit bearing block, the left slide unit bearing block is fixedly connected with platform board, the left slide unit axis
It is equipped with internal bearing cover, the left slide unit bearing block is equipped with bearing cover, installs between the left slide unit and right slide unit
Multiple photoelectric sensors are equipped with barn door, the photoelectric sensor and barn door between the left slide unit and right slide unit
Combination for realizing origin position locking and the restriction of platform board moving range.
6. automatic aligning screen printer according to claim 1, which is characterized in that the platform board is pacified by CCD camera
Loading board is fixedly connected with CCD platform, and the CCD camera mounting plate is equipped with a pair of of sliding rail, bearing block structure a pair, Duo Geguang
Electric transducer, a pair of of stepper motor, a pair of of screw rod, a pair of of sliding rail, a pair of of CCD camera and a pair of of feed screw nut, described in a pair
Stepper motor is separately fixed on bearing block structure, and screw rod described in a pair by shaft coupling and motor axis connection and passes through bushing
It is connect with locking nut with deep groove ball bearing, sliding block described in a pair is slidably connected with sliding rail respectively, CCD camera described in a pair
Mounting plate is separately fixed on sliding block, and feed screw nut described in a pair is separately fixed on CCD camera mounting plate and distinguishes simultaneously
It is slidably matched with screw rod, CCD camera described in a pair is separately fixed on CCD camera mounting plate, barn door point described in a pair
It is not fixed on CCD camera mounting plate.
7. automatic aligning screen printer according to claim 1, which is characterized in that the feedback device is CCD feedback dress
It sets and installs to mainframe.
8. automatic aligning screen printer alignment method, which comprises the following steps:
(1) air draught feeder and drawing expect that equipment provides tension for material, keep material straight, the cellular air draught on silk-screen machine host
Plate adsorbs material, keeps material smooth, and material device is drawn to drag material.
(2) when printing for the first time, CCD automatic decimal alignment system is closed, CCD feedback device will draw the practical drawing material distance of material device to scheme
As information feeds back to the practical deviation for drawing material distance and set distance of computer analytical calculation, and then the drive of adjustment drawing material motor
Material length is drawn in dynamic signal, amendment.
(3) before secondary printing starts, CCD camera spacing and screen frame position is adjusted, MARK point on screen frame is made to appear in a corresponding left side
Fixed within the scope of diameter 10mm in the visual field of right camera, operation computer is fixed into rower to the MARK point in the camera fields of view of left and right.
(4) make the MARK point alignment CCD of material using the position for adjusting CCD camera and material after CCD feedback camera positioning materials
Camera calibration point within the scope of diameter 10mm, checks position with camera image, later can curing ink start to print, system will
Before each printing it is automatic calculate material MARK point and before camera calibration value between deviation and output signal to stepping electricity
Machine corrects deviation, and whether feedback modifiers result reaches required precision to CCD camera simultaneously, reach requirement and start to print, otherwise
Second-order correction is carried out until reaching required precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810783860.5A CN108973311A (en) | 2018-07-17 | 2018-07-17 | Automatic aligning screen printer and alignment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810783860.5A CN108973311A (en) | 2018-07-17 | 2018-07-17 | Automatic aligning screen printer and alignment method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640419A (en) * | 2019-09-04 | 2020-01-03 | 东莞市钜镕智能机械有限公司 | Automatic deviation-rectifying mounting machine |
| CN110667237A (en) * | 2019-10-23 | 2020-01-10 | 珠海镇东有限公司 | CCD positioning device |
| CN111085464A (en) * | 2019-12-30 | 2020-05-01 | 中科慧远视觉技术（洛阳）有限公司 | Device for online detection of appearance of glass cover plate |
| CN111284133A (en) * | 2020-03-02 | 2020-06-16 | 东莞市邦泰印刷机械有限公司 | Automatic fine-adjustment plate table, adjusting mechanism and automatic chip mounter comprising adjusting mechanism |
| CN113002150A (en) * | 2021-02-04 | 2021-06-22 | 昆山市和博电子科技有限公司 | Full-automatic screen printing machine for wafer |
| CN113814312A (en) * | 2021-11-25 | 2021-12-21 | 新恒汇电子股份有限公司 | High-precision rib cutting method for flexible lead frame |
| CN114311971A (en) * | 2021-12-30 | 2022-04-12 | 天津赛维标识科技有限公司 | Screen printing machine with intelligent recognition and positioning functions |
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2018
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640419A (en) * | 2019-09-04 | 2020-01-03 | 东莞市钜镕智能机械有限公司 | Automatic deviation-rectifying mounting machine |
| CN110667237A (en) * | 2019-10-23 | 2020-01-10 | 珠海镇东有限公司 | CCD positioning device |
| CN110667237B (en) * | 2019-10-23 | 2024-04-26 | 珠海镇东有限公司 | CCD positioning device |
| CN111085464A (en) * | 2019-12-30 | 2020-05-01 | 中科慧远视觉技术（洛阳）有限公司 | Device for online detection of appearance of glass cover plate |
| CN111284133A (en) * | 2020-03-02 | 2020-06-16 | 东莞市邦泰印刷机械有限公司 | Automatic fine-adjustment plate table, adjusting mechanism and automatic chip mounter comprising adjusting mechanism |
| CN113002150A (en) * | 2021-02-04 | 2021-06-22 | 昆山市和博电子科技有限公司 | Full-automatic screen printing machine for wafer |
| CN113002150B (en) * | 2021-02-04 | 2022-05-27 | 昆山市和博电子科技有限公司 | Full-automatic screen printing machine for wafer |
| CN113814312A (en) * | 2021-11-25 | 2021-12-21 | 新恒汇电子股份有限公司 | High-precision rib cutting method for flexible lead frame |
| CN113814312B (en) * | 2021-11-25 | 2022-03-15 | 新恒汇电子股份有限公司 | High-precision rib cutting method for flexible lead frame |
| CN114311971A (en) * | 2021-12-30 | 2022-04-12 | 天津赛维标识科技有限公司 | Screen printing machine with intelligent recognition and positioning functions |
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