Systematic Maintenance Procedures for Semi-Automatic Solder Paste Printers

Systematic Maintenance Procedures for Semi-Automatic Solder Paste Printers, Integrating Routine Care with Key Deep-Clean Points:

I. Daily Maintenance (10-Minute Process)

Cleaning and Inspection

Wipe the machine body, display, and keypad area with a well-wrung soapy water cloth (do not use alcohol)

Verify air supply pressure (≥0.45 MPa), secure stencil holder fastenings, and inspect squeegee blade wear (replace if notches exceed 0.1mm)

Conduct parallelism check on feed rails (feeler gauge measurement ≤0.05mm)

Abnormal Condition Management

Immediately affix red labels to any scratches or abnormal noises detected; generate weekly anomaly heatmaps to analyse high-frequency fault points

II. Weekly Maintenance (30-minute in-depth servicing)

Pressure supply system maintenance

Note airflow direction when removing filters; install automatic drain valves to prevent water accumulation

Precision component lubrication

Apply spray lubricant to stencil rails; apply grease to ball screws at 1.5 times thread pitch

Hidden Contamination Inspection

Wipe camera lenses with lens paper and anhydrous ethanol; inspect ball screw grooves for residue via endoscopy.

III. Monthly Maintenance (1-hour comprehensive inspection)

High-Risk Component Inspection

Prioritise mechanical systems, stencil tension (decommission if attenuation >15%), and squeegee wear.

Steel Mesh Cleaning Protocol

Small-to-medium batch production: Manual machine wiping + quarterly ultrasonic maintenance (40kHz ultrasonic cleaning for 0.15mm micro-pores)

High-volume production: Install inline spray cleaning system; inspect mesh apertures with 10x magnifier after each wash

IV. Critical Precautions

Environmental Control: Maintain workshop temperature 22–28°C, humidity 40–60%, prevent dust from compromising print accuracy

Safety Regulations: Prohibit simultaneous operation by two personnel; do not insert limbs into equipment during operation

Data Calibration: Calibrate intelligent system data quarterly to prevent cumulative registration accuracy errors

Recommendation: Maintain a Maintenance Inspection Log to record parameters for each service; handle anomalies per the red-tag procedure.