Brife discussion of acceptance standard for hot melt adhesive coating machine

Brife discussion of acceptance standard for hot melt adhesive coating machine

Mechanical parts

1. Horizontal: each transfer roller horizontal, steel roller beat within 2 microns.

2. Roller appearance: smooth transfer roller, slot die knife without scratch

3. Hot melt adhesive tank temperature: error ±1 degrees; Fluctuation ±1 degrees.

4. Air expansion shaft: normal charging and releasing.

5.  Material tension on both sides is consistent.

Production test

1. The finish roll material does not wrinkle, no deviation.

2. Whether the speed meets the maximum value.

3. Edge spacing: within 5mm width can be coated.

4. Finish roll: longitudinal thickness fluctuation ±3 micron, transverse thickness fluctuation ±3 micron, head and tail thickness and middle thickness error between ±3 micron (5mm width)

5. The alignment error: ±1mm.

7. Jumbo roll appearance: can not tilt.