CN203496423U - Screen printing machine having registering self-aligning function - Google Patents
Screen printing machine having registering self-aligning function Download PDFInfo
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- CN203496423U CN203496423U CN201320570901.5U CN201320570901U CN203496423U CN 203496423 U CN203496423 U CN 203496423U CN 201320570901 U CN201320570901 U CN 201320570901U CN 203496423 U CN203496423 U CN 203496423U
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- frame
- half tone
- screen printing
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Abstract
The utility model relates to a screen printing machine having a registering self-aligning function. The screen printing machine includes a computer and a frame, a scraper, a printing bearing platform, a screen printing plate frame, and a driving mechanism are arranged on the frame, the screen printing machine further includes a pair of punchers and a pair of positioning members which are respectively connected with the screen printing plate frame and are provided with positioning holes respectively, the pair of punchers are arranged over the printing bearing platform and punch two punch holes in one step on webs at the outside of the two longitudinal frame edges of the screen printing plate frame, the two positioning holes are respectively arranged at the outside of the two longitudinal frame edges of the screen printing plate frame and are arranged above the punching positions when the webs are turned to be subjected to screen printing, a CCD camera vertically facing and shooting the positioning hole is arranged over each positioning hole, and the punchers and the CCD cameras are connected with the computer. The screen printing machine combines an image capturing technology and a driving platform, punches on objects to be printed for the first printing by means of the punchers, and captures the punching positions of the objects to be printed by mean of the CCD cameras during the subsequent printing to adjust the automatic aligning of the screen printing plate frame. Therefore, the aligning accuracy is guaranteed and the production efficiency is improved.
Description
Technical field
The utility model relates to screen process press technical field, relates in particular to a kind of screen process press with chromatography automatic aligning function.
Background technology
Along with the development of technology, serigraphy, because its printing precision is high, quality is good, has been widely used in the various industries such as LCD, IC encapsulation, PCB printing, packing and decorating.Accurate contraposition between half tone and stock is a key factor that determines screen printer print precision and quality.Existing Semi-automatic screen process press, what all adopt is platform stationary structure and manual feeding.During each feeding, by workman, take to the datum line of version is reference, then goes to judge roughly that with vision placement location carries out the placement of stock.Clearly, operator's labour intensity is large for the defect of this printing machine, and production efficiency is low, and the contraposition inaccuracy of half tone and stock.Also have in addition some screen processes press to adopt mechanical alignment mode, the mechanisms such as alignment pin are set on printing platform as contraposition reference, but the screen process press of this mechanical contraposition cannot meet the Production requirement of high accuracy, small size stock.
In addition, also there is in the prior art a kind of screen printer of realizing autoregistration scheme by ccd video camera and driving mechanism, the alignment mark (being generally the black color lump of the both sides that are printed on normal screen printing pattern) that this screen printer captures half tone frame position and last time printed on stock during silk-screen with ccd video camera, by the relative position of contrast half tone frame and alignment mark, computer calculates to obtain accurately aims at needed half tone frame displacement data, then controlling driving mechanism moves as horizontal cross, horizontally vertically move and horizontally rotate, and then drive half tone to frame shift to move to realize accurate aligning.Relatively mechanical contraposition and artificial contraposition, this technical scheme is aimed at accurately, is swift in motion, and can realize automation chromatography and aim at.
But there is following shortcoming in this technical scheme: due to motion and the compressing of scraper, flexible half tone can produce in the longitudinal direction a certain amount of deformation at every turn in printing, in other words, when silk-screen successively, spacing between the alignment mark of each printing is not an invariable fixed value, but fluctuates in a scope with half tone deformation.And half tone frame does not exist deformation substantially, therefore, when being undertaken on time by half tone frame and alignment mark, can there is trueness error because half tone has unsurmountable printing distortion all the time.Therefore can not meet part for the demand of the very high chromatography of required precision.
Utility model content
The object of the utility model embodiment is for the structural shortcoming of prior art, a kind of screen process press with chromatography automatic aligning function is proposed, by piercer is set, when stock prints first, punch, thereby the punch position adjustment half tone frame that utilizes CCD camera lens to catch stock in follow-up printing carries out automatic aligning.
In order to reach above-mentioned utility model object, a kind of screen process press with chromatography automatic aligning function that first the utility model proposes, is achieved through the following technical solutions:
A screen process press with chromatography automatic aligning function, comprises computer, frame, and this frame is provided with scraper, bearing ink pad, half tone frame and driving mechanism; Described scraper is positioned at the top of half tone frame, described bearing ink pad be positioned at half tone frame below and and half tone frame between have and hold the gap that roll web passes through; Described driving mechanism is positioned at the below of bearing ink pad and connects described half tone frame through these bearing ink pad both sides, realizes and drive half tone frame horizontal cross move, horizontally vertically move and horizontally rotate under computer control; It is characterized in that: described screen process press also comprises a pair of piercer and a pair of keeper; Described a pair of piercer is positioned at bearing ink pad top and on roll web, once goes out two punchings in the longitudinal edge of this half tone frame two outside; Described a pair of keeper is connected with half tone frame respectively and has respectively a locating hole; Two locating holes lay respectively at half tone frame two longitudinal edge outside and are positioned at roll web the punching position top while turning direction silk-screen; Centre distance and locating hole aperture that the centre distance of two locating holes equals two punchings that piercer once goes out are greater than described punching aperture; Each locating hole top is provided with the ccd video camera of vertically taking towards described locating hole; Described piercer, ccd video camera connect described computer.The projection on described bearing ink pad of two described ccd video cameras and a pair of piercer forms virtual rectangular four summits.
On described keeper, offer window, transparent plate body is installed on this window, described locating hole is defined by the annulus being printed on this transparent plate body.
The alignment method of the described screen process press of technique scheme comprises the following steps:
A, when roll web prints first, piercer punches near the printing zone of roll web;
B, at roll web, turn direction and carry out before secondary printing, by ccd video camera, gather the actual position information of punching on the actual position information of locating hole and roll web;
C, ccd video camera are transferred to computer by gathered positional information, and computer is made calculation process, control and drive platform to carry out alignment compensation.
In technique scheme, longitudinal edge of half tone frame refers to: when people stand on the operating position of screen printer and during towards screen printer, this people's fore-and-aft direction is longitudinally, and on half tone frame, the edge of this direction is longitudinal edge.In other words, longitudinal edge of half tone frame is perpendicular to the direct of travel of roll web on bearing ink pad.
Compared with prior art, the beneficial effects of the utility model are: the utility model is by picture catching technology and drive platform to combine, utilize a pair of piercer to punch when roll web prints first, thereby the punch position adjustment half tone frame that utilizes CCD camera lens to catch roll web in follow-up printing carry out automatic aligning.Because piercer is fixed in frame, in the little occasion of variations in temperature, it is constant all the time that the spacing of the two can be considered, therefore the spacing between the alignment mark (punching) that piercer stays on roll web can not produce change, thereby has avoided by typographic(al) mark, aiming at existing error in prior art.Screen process press of the present utility model and alignment method can be realized the full-automatic contraposition of screen process press, are beneficial to the full-automation that realizes printing, and have guaranteed to a great extent aligning accuracy greatly to have improved production efficiency.
Accompanying drawing explanation
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and easily understand.
Fig. 1 is the utility model embodiment overall structure schematic diagram;
Fig. 2 is the utility model embodiment principle schematic;
Fig. 3 is the utility model embodiment bearing ink pad part top view.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, so that technical staff's of the same trade understanding:
As shown in Figure 1-2, label represents respectively:
Carriage 1, the first ccd video camera 2, the first piercer 3, scraper 4, frame 5, half tone 6, half tone frame 7, the second ccd video camera 8, material receiving roller 9, locating hole 10, the second keeper 11, control panel 12, the first keeper 13, bearing ink pad 14, the second piercer 15, driving mechanism 16, computer 17, column 18, longitudinally edge 19, roll web travel zone 20, stamping knife 21.
Shown in Fig. 1-3, a kind of screen process press with chromatography automatic aligning function is provided in the present embodiment, comprise a frame 5, this frame 5 is fixedly installed computer 17 and bearing ink pad 14, its Computer 17 is located in frame 5 inner spaces, lower end (not showing in Fig. 1), and bearing ink pad 14 upper surface levels form the transport path of roll web.In addition, frame 5 front and back are provided with the conveying mechanism for sending and receiving roll web, and its mid frame 5 rear ends tilt arranges carriage 1, and the front and back end of carriage 1 sets up respectively guide roller; Frame 5 front ends arrange material receiving roller 9, for drawing banded roll web.
Below bearing ink pad 14, be provided with driving mechanism 16, this driving mechanism 16 is for common for driving workpiece to do horizontal cross motion, horizontal lengthwise movement and horizontally rotating the device of the motion of direction, and its general principles is to move by three driven by servomotor.On driving mechanism 16, by four columns 18, from the both sides of bearing ink pad 14, be connected to half tone frame 7.In the transverse sides of bearing ink pad 14, respectively offer two breach, column 18 is placed in this breach one to one, and column 18 does not contact with bearing ink pad 14 and can in breach, do a certain amount of moving horizontally.Thus, driving mechanism 16 can drive half tone frame 7 do micro-horizontal cross motion, horizontal lengthwise movement and horizontally rotate motion by column 18.
This computer 17 is electrically connected driving mechanism 16 and can drives driving mechanism 16.Half tone 6 is installed in half tone frame 7.In the upper end of half tone 6, there is scraper 4, scraper 4 is arranged on frame 5 tops by mechanical arm, and this mechanical arm is controlled by computer 17 equally, under the driving of computer 17, coordinates roll web is carried out to presswork with half tone 6.
In addition, for guaranteeing autoregistration, this screen process press also comprises the first ccd video camera 2, the second ccd video camera 8, the first piercer 3, the second piercer 15, the second keeper 11 and the first keeper 13.The first ccd video camera 2, the second ccd video camera 8, the first piercer 3 and the second piercer 15 are arranged in frame 5, and the second keeper 11 and the first keeper 13 are arranged on half tone frame.
Wherein:
The first piercer 3 and the second piercer 15 are located at respectively the outside of 7 two longitudinal edges 19 of web plate frame, and the illusion line between the stamping knife 21 of the first piercer 3 and the stamping knife 21 of the second piercer 15 is parallel with the direct of travel of roll web.The first piercer 3 is connected computer 17 with the second piercer 15, and controlled by described computer 17.When silk-screen, the stamping knife 21 on it is continuously disposable near each printing zone on roll web goes out two punchings,
The second keeper 11 and the first keeper 13 are roughly L-shaped, and it is installed on respectively on 7 liang of longitudinal frames 19 of half tone frame, and horizontally outward extend and arrange.On the second keeper 11 and the first keeper 13, be equipped with locating hole 10.In the present embodiment, this locating hole 10 is to form like this: on the second keeper 11 and the first keeper 13, offer a window, transparent plate body (as clear glass, transparent plastic etc.) is installed on this window, on transparent plate body, be printed with the annulus of black, by this annulus, defined the shape of locating hole 10.
Two locating holes 10 are positioned at the top of described bearing ink pad 14 coiling paper travel zone 20.The first ccd video camera 2 is located at the first keeper 13 tops, and its camera lens is over against the locating hole 10 on the first keeper 13; The second ccd video camera 8 is located at the second keeper 11 tops, and its camera lens is over against the locating hole 10 on the second keeper 11.The signal output part of the first ccd video camera 2 and the second ccd video camera 8 is electrically connected computer 17.
Shown in Figure 3, in said structure:
The centre distance of two locating holes 10 equals the centre distance of two punchings that the first piercer 3 and the second piercer 15 once go out, and the aperture of locating hole 10 is greater than the aperture of punching.Thus, ccd video camera can be by the complete outer margin contour that grabs punching of locating hole.
The stamping knife 21 center of the optical center of the optical center of the first ccd video camera 2, the second ccd video camera 8, the first piercer 3, the projection of the stamping knife 21 center of the second piercer 15 on bearing ink pad form respectively virtual rectangular four summits.This virtual rectangle has pair of parallel in the limit of roll web direct of travel, and a pair of limit perpendicular to roll web direct of travel.This four edges is all positioned at described bearing ink pad coiling paper region, and pair of parallel should approach the transverse edge of roll web in the limit of roll web direct of travel.
By such structure, when printing first, the first piercer 3 and the second piercer 15 when each printing on roll web the front and back of printing zone one side once go out pair of holes, dry rolling afterwards.When secondary printing, owing to unreeling, make printing out of order, roll web is turned direction silk-screen, at this moment be positioned at the first ccd video camera 2 of half tone opposite side and the profile information that the second ccd video camera 8 can capture corresponding locating hole 10, and the positional information that sees through the pair of holes staying before corresponding locating hole 10 crawl the first piercers 3 and the second piercer 15 on roll web, computer 17 can judge on punching and the transparent plate body of locating hole 10( black annulus) relative position deviation, and then the relative position calibration value between calculating roll web and half tone frame 7, and then the position of controlling driving mechanism 16 adjustment half tone frames 7 is aimed at web printing pattern.
In conjunction with said apparatus structure, this alignment method of screen process press with chromatography automatic aligning function is as follows:
A, when roll web prints first, the first piercer 3 and the second piercer 15 punch near the printing zone of roll web;
B, before roll web secondary printing, by the first ccd video camera 2 and the second ccd video camera 8, gather the actual position information of punching on the actual position information of locating holes 10 and roll web;
C, the first ccd video camera 2 and the second ccd video camera 8 are transferred to computer 17 by gathered positional information, and computer 17 is made calculation process, control driving mechanism 16 and carry out alignment compensation.
The utility model is by picture catching technology and drive platform to combine, and utilizes a pair of piercer to punch when roll web prints first, thereby the punch position adjustment half tone frame that utilizes CCD camera lens to catch roll web in follow-up printing carries out automatic aligning.Because piercer is fixed in frame, in the little occasion of variations in temperature, it is constant all the time that the spacing of the two can be considered, therefore the spacing between the alignment mark (punching) that piercer stays on roll web can not produce change, thereby has avoided by typographic(al) mark, aiming at existing error in prior art.Screen process press of the present utility model and alignment method can be realized the full-automatic contraposition of screen process press, are beneficial to the full-automation that realizes printing, and have guaranteed to a great extent aligning accuracy greatly to have improved production efficiency.
By embodiment, for utility model intention of the present utility model and embodiment, be elaborated above; but the utility model one of ordinary skill in the art be appreciated that; the above embodiment of the utility model is only one of preferred embodiment of the present utility model; for length restriction; here can not all embodiments of particularize; any enforcement that can embody the utility model claim technical scheme, all in protection domain of the present utility model.
It should be noted that; above content is in conjunction with concrete embodiment further detailed description of the utility model; can not assert that the specific embodiment of the present utility model only limits to this; under the guidance of above-described embodiment; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in protection domain of the present utility model.
Claims (3)
1. a screen process press with chromatography automatic aligning function, comprises computer, frame, and this frame is provided with scraper, bearing ink pad, half tone frame and driving mechanism; Described scraper is positioned at the top of half tone frame, described bearing ink pad be positioned at half tone frame below and and half tone frame between have and hold the gap that roll web passes through; Described driving mechanism is positioned at the below of bearing ink pad and connects described half tone frame through these bearing ink pad both sides, realizes and drive half tone frame horizontal cross move, horizontally vertically move and horizontally rotate under computer control; It is characterized in that: described screen process press also comprises a pair of piercer and a pair of keeper; Described a pair of piercer is positioned at bearing ink pad top and on roll web, once goes out two punchings in the longitudinal edge of this half tone frame two outside; Described a pair of keeper is connected with half tone frame respectively and has respectively a locating hole; Two locating holes lay respectively at half tone frame two longitudinal edge outside and are positioned at roll web the punching position top while turning direction silk-screen; Centre distance and locating hole aperture that the centre distance of two locating holes equals two punchings that piercer once goes out are greater than described punching aperture; Each locating hole top is provided with the ccd video camera of vertically taking towards described locating hole; Described piercer, ccd video camera connect described computer.
2. a kind of screen process press with chromatography automatic aligning function according to claim 1, is characterized in that: the projection on described bearing ink pad of two described ccd video cameras and a pair of piercer forms virtual rectangular four summits.
3. a kind of screen process press with chromatography automatic aligning function according to claim 2, it is characterized in that: on described keeper, offer window, transparent plate body is installed on this window, and described locating hole is defined by the annulus being printed on this transparent plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570901.5U CN203496423U (en) | 2013-09-13 | 2013-09-13 | Screen printing machine having registering self-aligning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570901.5U CN203496423U (en) | 2013-09-13 | 2013-09-13 | Screen printing machine having registering self-aligning function |
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| Publication Number | Publication Date |
|---|---|
| CN203496423U true CN203496423U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320570901.5U Withdrawn - After Issue CN203496423U (en) | 2013-09-13 | 2013-09-13 | Screen printing machine having registering self-aligning function |
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| Country | Link |
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| CN (1) | CN203496423U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481644A (en) * | 2013-09-13 | 2014-01-01 | 上海美声服饰辅料有限公司 | Screen printer with automatic chromatography alignment function |
| CN108116032A (en) * | 2018-01-30 | 2018-06-05 | 鹤山市泰利诺电子有限公司 | A kind of PCB silk printing screens location structure and center positioning method |
| CN108215464A (en) * | 2017-12-19 | 2018-06-29 | 广东北玻臻兴玻璃技术工业有限公司 | A kind of full-automatic glass printing equipment |
-
2013
- 2013-09-13 CN CN201320570901.5U patent/CN203496423U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481644A (en) * | 2013-09-13 | 2014-01-01 | 上海美声服饰辅料有限公司 | Screen printer with automatic chromatography alignment function |
| CN108215464A (en) * | 2017-12-19 | 2018-06-29 | 广东北玻臻兴玻璃技术工业有限公司 | A kind of full-automatic glass printing equipment |
| CN108116032A (en) * | 2018-01-30 | 2018-06-05 | 鹤山市泰利诺电子有限公司 | A kind of PCB silk printing screens location structure and center positioning method |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20160727 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20160727 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |