Automatic stencil printer Two independent motorised print heads
The Function of Solder Paste
Solder paste is a new type of welding material accompanied by SMT.
It is a paste mixture formed by mixing solder powder, flux and
other surfactants and thixotropic agents. Mainly used in SMT
industry PCB surface resistance, capacitance, IC and other
electronic components welding.
In the 1970s, Surface Mount Technology refers to printing and
coating solder paste on the solder paste pad of printed circuit
board, and accurately sticking the surface mount components on the
solder paste pad, heating the circuit board according to a specific
reflux temperature curve, so that the solder paste can melt. The
alloy component is cooled and solidified to form solder joints
between components and printed circuit boards to realize
metallurgical connection technology.
Solder paste is a new kind of welding material accompanied by SMT.
Solder paste is a complex system, is made of solder powder, flux
and other additives mixed paste. The solder paste has a certain
viscosity at room temperature, which can initially stick the
electronic components in the established position. At the welding
temperature, with the volatilization of solvent and some additives,
the welded components and printed circuit pad will be welded
together to form a permanent connection.
Working mode
Using scraper, stencil, PCB is fixed by vacuum suction. The optical
positioning points (MARK points) of the substrate and the stencil
on the worktable are aligned by the camera of the printer, and then
the substrate and the stencil are finely adjusted so that the
pattern of the substrate pad and the opening pattern of the stencil
are completely coincident
The Function of scraper
In SMT solder paste printing PCB board, one of the processes is to
use a scraper to squeeze solder paste, so as to transfer solder
paste from the steel screen to the PCB board. The scraper system is
the most complex motion mechanism on the printing press, including
the scraper fixing mechanism, the transmission control system of
the scraper, etc.
The function of the scraper system is to make the solder paste
expand into a uniform layer on the whole template area. The scraper
presses the template to make the template contact with PCB. The
scraper pushes the solder paste on the stencil forward while
filling the stencil opening; When the template is removed from the
PCB, leave a solder paste of appropriate thickness on the PCB
corresponding to the template figure
Specification
Model Item | ET5235 |
Screen Frames Min Size | 470*470mm |
Screen Frames Max Size | 737X737mm |
Screen Frames Thickness | 25~40mm |
PCB Min Size | 50X50mm |
PCB Max Size | 520X350mm |
PCB Thickness | 0.6~6mm |
PCB Warpage | <1% |
Transport Height | 900±20mm |
Transport Speed | Max 1200mm/S Programmable |
Board Location PCB Support System | Magnetic Pin/Up-down table adjusted/supportblock
by hand |
Clamping System Clamping System | side clamping,vacuum nozzle |
Print head | Two independent motorised printheads |
Squeegee Speed | 6~300mm/sec |
Squeegee Pressure | 0~10Kg/cm2 |
Machine's Feature
1. PCB transport and clamping system
The PCB loading direction can be selected and combined freely.
Unique crafted internal gear conveyor belt to prevent jamming.
2. Stencil positioning system
Arch bridge-shaped suspension hanging direct-connect scraper.
3. Scraper system
Cast aluminum scraper beam to ensure smoother running of scraper.
4. Operation interface
Easy-to-learn and easy-to-use friendly operation interface
5. Image and optical system
X,Y axis adopts high-precision grinding ball screw,driven by servo
motors at both side.
Service
Our service can be divided into three parts: pre-sales service,
in-sales service and after-sales service:
1)Pre-sales service can be called professional product
consultation. If you are particularly familiar with the patch
machine industry, we have special technical consultants to answer
the technical questions you want. If you want to move into this
industry, we also have special personnel who can provide some
information about the patch machine to make you more familiar with
the pick and place machine
2)Service in sales refers to that you have paid a deposit in
advance, and after the production of your products, we will
regularly share the progress of product production with you. Of
course, if you have other requirements during this period, you can
also say it, and then we will make your expectations for the
products.
3)After sales service refers to all the services we provide when
you receive the products. We have a special after-sales department
to serve you, such as guiding installation, training employees,
regular follow-up, sharing industry information and so on.
Clients
ETON as the leading manufacturer of global photo electronic high
speed pick and place machine, the products are exported more than
20 countries and regions, including India, Vietnam, Tunisia, Egypt,
Turkey, Russia, Thailand, etc.Take India as an example,We have many
big clients in India, Such as RK,SURYA,Fiem,Calcom,POLYCRB, etc. We
have sold over a hundred machines to India.
Contact me:
David
Whatsapp/Wechat/Tel: +86 13827425982
Skype: +86 15573907263
E-mail: david@eton-mounter.com
QQ:3061340868
Shenzhen Eton Automation Equipment Co.,Ltd.
The 2nd. Floor, Building C2, Hengfeng Industrial Area, Zhoushi Road
No.739, Hezhou community, Hangcheng Street,Baoan
district,Shenzhen,Guangdong,China.
