Fully automatic gas stencil cleaning machine

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Words

Due to the current miniaturization of components, the screen printing steel mesh holes are getting smaller and smaller, resulting in solder paste easily remaining in the mesh holes and making it difficult to clean. Since the residue of solder paste directly leads to poor printing, stencil cleaning becomes very important. Cleaning methods are divided into two types: solution pressure spray and ultrasonic cleaning. However, because ultrasonic waves are potentially dangerous to the volatilization of the solution and will destroy the adhesive used for fixation in the steel mesh, the industry is gradually leaning towards the solution pressure spray method. It is best to use fully pneumatic controlled cleaning that does not pose any danger to the volatilization of the solution. Due to the development of lead-free soldering, many high-demand stencils need to be cleaned immediately after printing, usually using deionized saponified water for pressure spray cleaning.

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Product Introduction

The cleaning machine adopts full pneumatic control for cleaning, pneumatic logic control, no need to connect to electricity, and can use water or solvent, which is safe and reliable. Adjust the appropriate stencil hanger and move the items to be cleaned to the center to clean the stencil or circuit board.

First set the cleaning time and drying time. After pressing the start button, the system starts a fully automatic cleaning operation. The solution needs to go through a

filtration process. First, the steel mesh is sprayed with a rotating nozzle. The solution is filtered by the filter. The activated carbon and reducing resin are filtered and flowed back to the liquid storage tank. It is extracted by a pump and then sprayed on the steel mesh after passing through the filter tank to ensure the filtration of solder balls and flux. Remove. After spraying for a set time, the solution is cut off, and the exhaust fan starts to work to discharge the exhaust gas. The millimeter-long spray rod powered by the left and right pneumatic motors rotates in the opposite direction, and sprays clean air through an arc-shaped nozzle to dry the steel. net. Stop drying after set time. Fully pneumatic automatic control is adopted to ensure absolute safety when using volatile solutions. The main air input, pump, exhaust fan, left nozzle, and right nozzle pressure can be controlled independently, and the speed of the spray rod can be adjusted at will through the flow rate of the pneumatic motor.

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Mesh cleaning machine description



Mesh
The washing machine is designed to clean steel mesh circuits plate, which can effectively remove solder paste and flux residue. It adopts full pneumatic logic control and drive. It is efficient, fast and safe. It is currently a popular and recommended method for cleaning steel mesh. It adopts rotating high-efficiency atomizing spray arm and heavy solution filtration for recycling and maintenance. Simple, all-stainless steel body ensures longevity.

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Working principle of washing

Micron nylon filter paper activated carbon filter micron positive reduction resin filter liquid storage tank micron filter tank filter powerful diaphragm pump pneumatic motor exhaust pneumatic The on/off valve rotates to spray the cleaning chamber with micron nylon filter paper and then repeats the cycle. In addition, the cleaning timer program can be set when the powerful diaphragm pump is used, and the drying timer program can be set when the pneumatic motor is extracting air.