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The comma scraper coater is a device used for uniform coating on flat materials, and the comma-shaped coating is formed by the scraper.
Comma coating principle
The surface of the round roller is processed into a blade along the generatrix, which is shaped like a comma. Because the rubber surface is squeezed in front of the blade, once the rubber surface of the substrate passes through the blade, it suddenly loses pressure (the pressure drops to zero). Although the rubber surface rebounds (the substrate or adhesive is an elastic body), it will not contact the comma scraper, thus eliminating the sticky marks.
During coating, the comma scraper is fixed and does not rotate. The notched edge of the scraper faces the tangent point of the coating roller or the backing roller, and the coating passing through is scraped to ensure uniform coating.
The uniformity of the coating scraping mainly depends on the full runout, cylindricity, and straightness of the blade of the comma scraper. The comma scraper coater is a relatively easy-to-use coating method because of its simple operation and wide range of glue viscosity. The small experimental coating table enables testers to easily apply precise coatings, reducing or eliminating errors caused by human factors such as different coating speeds and applied pressures during the coating process.
| Control System | Custom Developed By GAONENG |
| Coating Uniformity | <6Micro-micrometers |
| Coating Width | 1300 mm |
| Coating Thickness | 0.005-5 mm (Wet Film) |
| Coating Method | Comma Doctor Blade +Micro-gravure(Used Independently) |
| Tension Control | Fully Automatic Tension Adjustment |
| Doctor Blade Adjustment | pneumatic regulation |
| Oven Length | 20Meters (Customizable) |
| Oven Temperature | Ambient Temperature -160ºC |
| Heating Method | Electric Heating +UV Curing |
| Heating Tubes | Stainless Steel Fin-Type Heating Tubes |
| Production Speed | 1-30 Meters/Minute (Stable At Low Speeds) |
| Winding Function | Automatic Winding |
| Bearing Requirements | NSK Bearings For Main Components |
| Oven Lifting | Pneumatic automatic lifting and lowering Lifting |
| Glue Supply System | Automatic Glue Supply System Supply |
| Winding/Unwinding Diameter | 600 mm |
| Motor Type | 3-Phase Variable Frequency Motor |
| Unwinding Device | 3-Inch Pneumatic Expanding Shaft |
| Machine Material | Aluminum Alloy Frame |
| Power Supply | 3800V 50Hz |
| Power Consumption | 30 KW |
The comma scraper roller clutch adjustment adopts a pneumatic swing arm type, the swing arm is equipped with a micro-adjustment device to control, and the thickness of the glue is controlled by a feeler gauge.
The coating scraper shaft adopts a heavy-duty dual-axis mechanical independent movement, the scraper adjustment method is manual with pneumatic type, the angle can be adjusted arbitrarily, the coating amount depends on the mesh line of the anilox roller, and different coating amounts can be replaced with anilox rollers of different mesh lines.
The oven is 10 meters and divided into 4 sections with independent temperature control. The heating adopts electric heating, a hot air entry drying system, adjustable internal circulation suction and exhaust device, strong air intake and exhaust wind, and thorough drying.
The guide wheel in the oven is actively synchronized with the main machine, and the transmission adopts synchronous belt drive to reduce material stretching and deformation. The side door oven and film penetration operation platform make it easy for operators to work.
High-precision upper-pressure traction device, steel roller cooling adopts water circulation type, through the cooling roller to make the film smoother, more scraped, and achieve a better cooling effect.
Q1: Are you a trading company or factory?
A: Factory+trade (integration), more than 20 years focusing on the Lab coating machine field, 5 years exporting experience.
Q2: After an order is placed when to deliver?
A: Generally about 15-25 working days, if there is ready stock for items, we can arrange shipment within 2 working days. Please be aware that our production lead times depend on specific items and item quantities.
Q3: What about the warranty with after-sales services?
A: 12-month warranty. We can help you repair your problem parts for free, after the warranty, our professional after-sale service team will provide perfect technical support and help our customers solve problems we encounter while using our products, and handle customer problems and complaints in a professional and timely.
Q4: What about the product's services and quality?
A: Each piece of equipment must be carried out 100% quality examination and test when shipping and delivering goods. Product use training, each of our products provides video training to show you how to install & operate. We can arrange for an engineer to train the operation of equipment to the customer's company when you need. products are widely recognized and trusted by users.
Q5: Can your products be customized?
A: Yes, our product can be customized according to your parameters.
