Hot Melt Glue Machine

Hot Melt Glue Machine

1.Extent coating and compound distance, more suitable for thermal paper adhesive produce and other temperature resistance material compound.

2.With high precision and hard strength stand wear and tear die, ensure 200m/min high speed coating efficiency, and extent die life.

Hot Melt Glue Machine

In the coating process, the coating gap is poor and the pole piece wrinkles are analyzed:


3. The front and back are not aligned
(1) Operational aspect: the first side gap is consistent. The operating parameters are not adjusted well. The light eye is blocked. The unwinding pinch roller forgets the clip.
      (2) Equipment: The tension behind the second side is large. The front tension is small.
4 When the middle is turned on, the white space becomes smaller, and the back 3-4 pieces are inaccurate.
Equipment: The tension is not allowed at the beginning of the start. The first side has no memory function. The foil strip slides forward 2-3mm when starting. The tension starts first when starting. The back roller does not turn. The coating head has no pinch roller or is not clamped.
5. The last piece is in a parallel trailing tail
Operation: coating the back roller spacing (the first side is tailed, the second side is not trailing); the back roller is pulled slowly when the machine is stopped 6. The head thickness is thin or the head is thin and thick. Operation: The head and tail parameters are not adjusted well 7 There is no effect on the action
(1) Material: The foil is tight on both sides
(2) Equipment: the foil tension is small and the moment leaves the back roller.
8. Double-sided large piece of whitening phenomenon: the light eye is not sensed. The first side gap is abnormal. The light eye is covered.

Hot Melt Glue Machine

Second, the length of the coating section changes, the spacing is unstable:

3. Reasons and countermeasures for the phenomenon of wrinkling of the pole piece during the operation of the coater
1. The overall installation accuracy is low. The installation center of each component deviates from the center line of the whole machine design, or it has an angle with the design center. The foil strip will be seriously wrinkled and the installation center must be adjusted.
2. The excessive parallelism between the rollers will cause the foil strip to wrinkle. It is necessary to check carefully whether the vertical projection surfaces are not parallel or the horizontal plane is not parallel, and then adjust.
3. The roughness of the surface of the roller is too poor, the surface of the roller is not smooth enough, and the foil is wrinkled when there is obvious processing texture. It needs to be replaced by the manufacturer.
4. The back roller and each roller are stuck with foreign matter or use too much water. Isopropyl alcohol scrubbing requires frequent inspection, timely detection and cleaning, and careful not to damage the roller surface.
5. The foil strip joint is not good. When the tension between the two sides of the foil strip is unbalanced, the pole piece is wrinkled. First adjust the tension adjusting roller under the coating head. After the foil strip is gradually stable, adjust the adjusting roller to the original state.


Zhengzhou EAST IMPORT AND EXPORT co., ltd . ( a goulian group of company) a manufacturer and exporter for all kind of packaging machinery , like bopp tape coating machines, bopp tape slitting machines. Bopp tape core cutter, bopp tape core loader etc

Got any Questions?