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Sakurai MS-SD series of presses Realize the latest screen printing by MS80/102SD with new efficient technology |
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| Printing start position change and variety size of screen frame use can be realized because screen frame and squeegee are driven by individual servo motor |
(A) Printing start position change
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(B) Variety size of screen frame use
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 Screen frame movement is control by servo motor.It realize constant printing speed which bring you evenness printing quality. |
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 Against elongation printing problem.,mismatching the image can be adjusted by changing the movements screen frame and Cylinder. Within printing stroke, maximum 5 points can be adjusted with touch screen monitor. |
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 After adjust the sheet position with traditional mechanical register system, read printed alignment marks on sheets by CDD camera, then fine-register with center vacuum table.
With mechanical and CCD camera register systems, production can be faster than flat bed printing press in the market.
Register accuracy: +/-30micron
Max Printing speed: 900sheets/hour
Make-ready time: Half *target
*Above numbers can be changed depends on condition. |
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 In order to set the screen frame position at once, this device would be suggested. Two CCD cameras see the register mark on screen and those are magnified and shown on the display.
So, operator can easily and quickly set the position of screen on the press |
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In order to achieve fine printing result, the clearance between screen mesh and cylinder must be minimized. It was difficult to realize because of bleeding and unevenness of ink deposit. With using uniqueness of cylinder type screen printing press and Sakurai original function, the distance can be set to minimum and realize expectation of high end customer.
 A) Keep 2mm clearance when grippers take sheets.
B) Screen frame goes down till 0 to 3mm from cylinder before start printing.
C) After printing, screen frame goes up and keep 2mm clearance and ready for next sheet. |
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| Instead of relying on operator's experience, numerical indication for each functions can realize sill less operation especially, this function is useful for multi color line in order to match two machines setting. 
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MS80SD + CCD Alignment System |
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Without Camera |
CCD camera alignment |
| Press dimensions (mm) |
2995(L) X 2770(W) X 1170(H) |
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| Press weight(kg) |
3000 kg (approx) |
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| Max. sheet size (mm) |
800(W) X 550(L) |
750(W) X 550(L) |
| Min. sheet size (mm) |
420(W) X 270(L) |
420(W) X 297(L) |
| Sheet thickness (mm) |
0.05 - 0.8 |
0.1 - 0.8 (*1) |
| Max. print size (mm) |
720 X 500 |
720 X 500 |
| Printing speed (IPH) |
100 - 2000 |
100 - (900 approx.) (*2) |
| Register accuracy (mm) |
±0.05 |
±0.03 (*3) |
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| Detecting subject |
Sheet edge |
Marking on sheet (*4) |
| Positioning |
Mechanical Front and side lays |
XyΘAlignment stage |
| Confirming position |
Register sensors |
CCD Camera x 2 |
| Sheet position holding for register |
Front lays and brush wheels |
Vacuum table |
| View of camera H x V(mm) |
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9.6 x 7.2 |
| Camera focus (mm) |
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13.5 |
| Camera positioning |
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XYZ position adjustment (*5) |
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| Sheet feeding |
By sheet feed belts |
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| Suction feed belt |
Not available |
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| Delivery side re-bound stoppers |
2 pcs. |
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| Feeder side re-bound stoppers |
4 pcs. |
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| Ionized blow up device |
Not available |
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Not same to the standard spec. of MS80SD |
| *1 : Should be the flexible materials |
| *2 : Printing speed should be determined to the printing line configurations, print condition and materials |
| *3 : Print repeatability by machine |
*4 : Printed register mark is required on the sheet, suggested marks are ● or + and size 1-2mm
For 1st color printing, regular positioning by sheet corner would be done |
| *5 : CCD position should be adjusted following the sheet size |
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