Solder Paste Semi-automatic Printing Machine

Printing machine series - solder paste semi-automatic printing machine is mainly printed on the P C B circuit board, is placed on the stencil of the paste, through a certain strength and angle of the scraper left and right scraping, so that the paste through the stencil leakage to the stencil below the P C B bare board pads, for the back of the mounting process to prepare for the printing machine is divided into a manual printing table, semi-automatic printing machine, in-line printing machine, and fully automatic Printing machine.

Semi-automatic printing machine is mainly composed of sheet metal base, porous plate table, the main board. First is our base, is made of sheet metal welding production, the whole is very thick and stable, will not product shaking phenomenon. The front is an electronic control box, electronic control box inside the P L C, variable frequency drive, power supply components, of which our P L C is used in Siemens printing presses dedicated to a control system, Ming Wei power supply. Then come up two green buttons are the left and right start switch, the center red is the emergency stop switch, the right is the power switch, the left black this is the speed button, it can adjust the speed of the suspended scraper. Porous board table pressure strip, is to prevent the P C B circuit board by the scraper pressure bad, in addition to the X axis and Y axis play a role in fine-tuning the P C B board, the motherboard has a left and right proximity sensor, Taiwan on the silver of the linear guide, levitation scraper, stencil clamping wall are required to be fixed above the motherboard. Semi-automatic printing machine work before the preparation; first adjust the pressure strip placed in the middle of the porous board used to support the P C B circuit board, L-type positioning seat, positioning pins to fix the P C B board, with the screws to lock the positioning seat on the worktable. Then lower the main board, scraper head up, ready to install the stencil. Put the stencil into the clamping arm, adjust the position of the clamping arm according to the stencil, so that the stencil and the P C B board are in good alignment with the holes, and after there is almost 95% accuracy, you can lock the stencil with the knob. Loosen the screws holding the bottom of the table and make fine adjustments with the X-axis and Y-axis to align the holes of the P C B circuit board with the stencil then lock the screws to hold the bottom of the table. Turn the crank to let the main board down so that the stencil fits with the P C B board. Then install the right length of squeegee, taking care to align the two squeegees. Lower to head lock. Adjust the pressure of the squeegee on the stencil, adjust the level of the squeegee and the stencil, so that the preparation work before starting the machine is done.