Fully Automatic Screen Printer H6
Quick Overview
Key points to get a good printing quality:
The screen printing process is one of the key processes in surface mount technology that controls manufacturing yield, and it's also the station caused most of the failure in the SMT line. So to choose a right printer, we need to be careful about below points:
■ Vision system: vision system with fiducious camera will determine whether the stencil & PCB aligned preciously, with small tolerance it will be desaster for final printing result.
■ Stencil cleaning: without a nice cleaning system to keep stencil in sharp, the stable printing performance is unexpected.
■ Precision mechanical system: It's the foundation of a stable machine.
■ Clean & Clear software.
■ Stable electrical system.
Advantage |
1.Arch bridge type suspending direct-connected squeegee. |
2.Print head with the programmable and suspending self-adjusting stepper motor drive. |
3.Four wheel positioning slide type with bilateral double sliders ensures the moving accuracy and stability when scraper is running back and forth. |
4.Unique belt transmission system avoids being stuck or fall-off of PCB. |
5. Programmable motor controls transport speed and puts PCB in the precise position. |
6. The unit to clean is separated from CCD camera, which can minimize the load of motor and impulse, improve the positioning precision and speed and extend the service life. |
7. With servo motor and lead screw, the direct connection UVW platform is featured with high precision, high rigidity and compact structure. |
Fully-Automatic Screen Printer
H6(ON-LINE SYSTEM): |
Top Clamping(Option) |
Top clamping system can ensure PCB flatness before printing, 2 piece tabletting press the edge of the PCB ,twist and warpage would be eliminated. |
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Vacuum Clamping (Option) |
Vacuum clamping is an option configuration of H6, thin and flex PCB can be clamped by vacuum to ensure the quality of printing . During production, PCB will be supported by magnetic tooling pins and vacuum module, this system can hold the PCB to keep it evenly, this function is useful for thin, twist and flex PCB. | 
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Programmable print head |
It is designed to meet the need of different pressure at the front and rear squeegee and the requirement of squeegee’s leveling stability, to prevent solder paste leakage and squeegee blade with certain flexibility clamping. Squeegee pressure can be independently programmed. This provides a stable leveling of the squeegees for precise solder paste transfer. | 
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Stable Electrical System |
All electrical parts with labels, customer can find out the problem depends on error message of PC and electrical drawing soon. H6 can detect the fault by red indicating light from I/O cards, bright is normal condition, dark is abnormal. Integrated circuit and upgraded movement control card to make operation and maintenance more convenient H6 can modify printing parameter during production process . | 
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Linear slide rail |
Use THK linear slide rail to provide higher printing accuracy . |
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Stencil Cleaning System |
3 types of under stencil cleaning: dry, wet and vacuum. These 3 modes can be individually selected or combined for using. System allows manual cleaning within its operation menu which shortens cleaning time and improves production efficiency. | 
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BEFORE CLEANING |
Blocked the opening of stencil by solder paste and choose 2 areas (IC and BGA )to check cleaning result. | 
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CLEANING RESULT |
Conclusion: blocked holes and IC can be cleaned completely. Customer could set up cleaning module (wet, dry and vacuum modes) depends on difficulty of stencil to improve productivity and ensure cleaning quality. | 
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Printing Result Comparation |
500X Microscope Inspection |
| Conclusion: Printing result is perfect , no misalignment , shift , solder bridge, lack solder , etc. |
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| Use same sample to test H6 and other brand to check IC and BGA |
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Printing Result Comparation (SPI) |
SPI inspection |
| SPI inspection result: Production QTY: 192PCS Pass QTY: 189PCS Defective QTY: 3PCS Pass rate: 98.438% Defective rate: 1.562% |
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| Conclusion: This PCB has many difficult IC and small pads , after inspection, result is good , H4 can ensure printing quality and accuracy in production line |
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Fully Automatic Screen Printer H6 Specification： |
Model | H6 |
Screen Frames | Min Size | 650×650mm |
| Max Size | 850×850mm |
| Thickness | 25~40mm |
PCB Min Size | 80×50mm |
PCB Max Size | 650×610mm |
PCB Thickness | 0.4~6mm |
PCB Warpage | <1% |
Transport Height | 900±40mm |
Transport Direction | Left-Right;Right-Left;Left-Left;Right-Right |
Transport Speed | Max 1500mm/s（Programmable） |
Board Location PCB | Support System | Magnetic Pin/Up-down table adjusted /support block |
| Clamping System | Side clamping,vacuum nozzle,
Automation retractable Z pressure |
Printer Head | Two independent motorised printhead |
Squeegee Speed | 6~200mm/sec |
Squeegee Pressure | 0~15kg |
Squeegee Angel | 60°/55°/45° |
Squeegee Type | Stainless steel（standard）,plastic |
Stencil Separation Speed | 0.1~20mm/sec （Programmable） |
Cleaning System | Dry 、Wet、Vacuum （Programmable） |
Table Adjustment Ranges | X:±10mm;Y:±10mm; θ: ±2° |
Solder Paste Inspection | 2D Inspection(Standard) |
Repeate Position Accuracy | ±0.01mm |
Printing Accuracy | ±0.025mm |
Cycle Time | <11s（Exclude Printing & Cleaning） |
Product Changeover | <5Min |
Air Required | 4.5~6kg/cm2 |
Power Input | AC:220±10%,50/60HZ,3KW |
Control Method | PC Control |
Machine Dimensions | 1330（L）×1530（W）×1500（H）mm |
Machine Weight | Approx:1200kg |
Fully Automatic Screen Printer H6 Options: |
● Automatic Dispensing |
● Stencil Detection |
● PCB Top Clamping |
● Stencil (850*850mm) |
● Stencil Frame Adaptor (850*850mm) |
● Solder Paste Adding |
● Constant Temperature and Humidity |
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All different types stencil can be used by stencil adaptor, suitable dimension is between 650*650mm to 850*850mm |
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ILIKELEO
Leopeng_keentec
sales@1clicksmt.com