1. Moveable blade device.
2. Guiding roller in oven will synchronously rotates with main shaft.
3. Solenoid operated valve controlling is adopted for Anilx roller and drawing roller.
4. Automatic meter-measuring devices.
5. Key mode air shaft is used for unwinding and rewinding shafts, easy to load and unload.
Characteristics of several coating methods -
This size coating is typically applied by two roll transfer. By adjusting the gap between the upper rubber roller and the coating roller, the amount of coating can be adjusted. The structure of the entire coating head portion is relatively complicated, and the processing precision and assembly precision of the rubber roller, the coating roller, the traction roller and the scraper are required, and the cost is relatively high. Since the coating machine mainly uses a high-precision optical roller for sizing coating, the coating effect is good, and the coating amount is adjusted by the gap between the sizing roller and the coating roller, and can also be coated. The micro-motion adjustment of the scraper is flexibly controlled, and the coating precision is high. It is currently the most widely used on coated composite equipment.
This coating apparatus mainly uses a textured (concave-eye) coating roll for sizing coating. The coating is uniform and the coating amount is relatively accurate (but the coating amount is difficult to adjust). When coated with an anilox roll, the amount of coating is mainly related to the depth of the concave surface of the anilox roll and the accuracy of the type of glue. The deeper the depth of the concave surface of the anilox roll, the greater the amount of glue transferred from the concave eye to the substrate; conversely, the shallower the depth of the concave surface of the anilox roll, the amount of transfer to the substrate is correspondingly reduced. It also has a lot to do with viscosity. Too much viscosity and too small a glue is not conducive to the normal transfer of glue. Glue viscosity is easy to transfer, too thin is easy to flow, so that the glue is not uniform, easy to produce vertical or horizontal flow pattern. Therefore, once the type of the coated anilox roll and the glue are fixed, it is difficult to adjust the coating amount, which is also the main reason for the limitation of the application of the textured coating roller.
Micro gravure coating application case:
- 1 -
Light-shielding film, various optical films, materials for lithium batteries, various composite tapes, film films, and protective films. Comma roll coating:
The comma roll coating is characterized by a combination of a blade scraper and a roller scraper. The effect of the thickness of the glue is smaller than that of the blade, the thickness of the coating is easily adjusted, and the high viscosity glue can be applied. When the width is large, it can be adjusted horizontally.
1. The strength and hardness of the comma scraper are high, and the straightness error of the cutting edge is small. The pneumatic fine adjustment mechanism can be used to adjust and control the position of the scraper, and the coating amount control and scraping precision are high.
2. It can coat thicker coating. When coating, the glue flows from top to bottom between the blade mouth and the film. Therefore, the glue can be fully used, and there is basically no waste of glue.
1. The coating quality of the comma roller coating has a great relationship with the operation of each component unit, especially the transmission ratio between the driving motor and the rotating pressing roller is difficult to adjust, which often causes uneven coating and is prone to lateral or Longitudinal irregular stripes. When coating, the glue easily flows out in the gap between the baffle and the drive press roller, and the sealing property is not complete. When coating, it is necessary to manually stir the glue of the glue storage tank. To guarantee
Even distribution of the glue.
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