With the outbreak of the global COVID-19 epidemic in early 2020, the global demand for masks has surged, which makes the mask machine a hot device. The key to the production of masks is inseparable from precision micro-hole processing technology and micro-hole drilling machine, of which precision micro-hole processing involves melt-blown micro-hole processing and drilling. So what are the technical difficulties in the process of precision micro-hole machining?

1. How to deal with the high frequency wear of the same stroke in melt blown micro-hole machining processing?

In this case, the full stroke lubrication of the equipment should be done to maintain the accuracy of the equipment. Specific measures:

1. When shifting shifts or changing materials, perform full-stroke lubrication of the equipment.

2. The automatic lubrication frequency and time are set in the numerical control system. After the lubrication is completed, the machine is warmed up to start processing.

3. The spinneret has a large number of holes, combined with tool life management, after processing 100-200 holes, wear the tool

In addition to damage detection, the reciprocating motion of the Z axis is suspended after the Z axis is lifted, which can alleviate the high-frequency wear of the same stroke during processing.

2. So what are the advantages and disadvantages of the three micro-hole processing technologies: high-speed drilling, electric discharge, and laser processing?

EDM: It is not limited by the processing material, but the roundness of the orifice is not easy to guarantee after processing;

Laser processing:  it is no need to process tools without cutting force, but it is not easy to remove chips, and it is easy to form buildup on the inner wall of the hole.

High-speed drilling: high production efficiency, such as the diameter of hole with 0.15-0.4mm, the depth of 2-5mm, the processing efficiency can be 1/min,