In the production process management of modern paper machine, doctor blade is a very important part. It can effectively improve the operation performance of the whole production line, ensure the cleanness of roll surface, make the web stripping easier to control, and reduce broken ends and holes.
1.Peel sheet :The doctor blade is installed at the correct position on the surface of the roller or dryer from which the paper is peeled, so as to effectively assist the production workers to bring the paper from the wet part to the dry part to the coiler.
2.Roller surface cleaning :The doctor blade design should help to clean the water or dirt on the surface of the roller or dryer, keep the roller surface or cylinder surface clean, and improve the product quality and paper machine efficiency.
The scraper is mainly composed of six parts :
| Component name |
Design or selection requirement |
| Blade body |
Good rigidity, accuracy and stability are required |
| Holder |
There are rigid tool rest and self-adjusting tool rest.
The rigid tool holder can bear the scraper line pressure, which is cheap, but the sealing is uneven.
The self-adjusting tool holder has self-adjusting lateral deformation and good sealing performance. |
| Doctor blade |
When selecting the scraper blade, the running speed of the scraper blade and the roll surface material shall be matched and installed at the correct angle.
Materials include metal, plastic, synthetic materials, laminates, etc. |
| Wiggler |
A proper shear angle is generated between the scraper blade and the roll surface to prevent dirt from accumulating under the scraper and keep the roll surface clean. |
| Pressurizing device |
The design shall be convenient for adjusting the scraper line pressure. |
| Bearing |
Self aligning bearing is generally selected. |
We can make your paper-making equipment more efficient, paper more stable. Reasons to choose the material:
1.According to different use parts or different rolls materials, you can choose different material of doctor blades, with lower friction coefficient.
2.Long life: Choose high-quality EP synthetic resin material, carbon fiber, polymer materials and advanced production technology worldwide, 50% longer than other domestic material.
3.Low thermal expansion coefficient, long time sintering laminated, excellent uniformity and the internal stree-relieved.
4.Excellent gliding property can greatly protect equipments operating.
1.Do not increase the pressure on the scraper blade that has been used for a long time and runs in with the roll surface. Increasingthe pressure is easy to roll up the blade edge of the scraper blade, but cause the tightness of the scraper. Therefore, the scraper blade must be replaced with a new one before increasing the pressure of the scraper blade.
2.Always check the lubricating and cleaning water of the scraper to prevent the spray water pipe from being blocked, so as to speed up the wear of the scraper blade.
3.Regularly check the deformation of the scraper holder and replace it if it is found to be deformed.
4.The scraper holder shall be kept clean to avoid difficulties in replacing the scraper blade.
Highly inspecting equipment in every procedure, quality comes first;
Fast & Safe Delivery;
Assisting our clients for foundation construction of equipment;
Providing life-long maintenance service;
Providing technical exchanging.
Established in 2010, Sun Hong Group is a comprehensive company integrating planning, design, technical support, production, testing and training. We have a professional technical team to provide you with professional design and technical support as well as the best source of goods. After more than ten years of efforts, our products have been exported to 96 countries, and have more than 300 paper plants customers.
Sun Hong Group have a wide range of business, we can design and produce various customized products according to the different requirements of different customers. Mainly involving Paper Machine Clothing, Industrial Fabric, Paper and pulp machine spare parts, test equipment, etc. In addition, we also provide customers with update and transformation services to enhance customer output.
Audited Supplier 
){kind=link}