Double Air Bag Single Doctor Blade Holder
Working and structure principle: The pneumatic tire pressurizing scraper body is made of all stainless steel. The scraper device is composed of a pneumatic thumb, a scraper body, and a swing device. The core component is a pneumatic thumb, which is connected to the scraper body through a rotating shaft, and the scraper blade is inserted into the pneumatic In the middle of the thumb knife magazine, the pressurization of the scraper is completed by the pressurization and decompression of the pneumatic thumb with two pneumatic tires. The scraper body is used to fix the pneumatic thumb. It must have sufficient rigidity and straightness. In order to better protect the roller surface, the scraper needs to swing back and forth at a constant speed. Depending on the use environment, the swing device has two options: pneumatic and electric. In order to facilitate the roll change, the scraper body can be installed on the scraper body and rotated by a cylinder to obtain more space.
Structure and characteristics:
1. Double airbag single doctor blade holder
- The airbag can make the contact of the blade and the roller at any point is very balanced, preventing the roller from being scratched.
- Adjust the pressure of the air supply through the pressure reducing valve, so that the line pressure can be effectively controlled.
- The thickness of the blade can be freely selected from 1mm to 6mm, and the blade replacement is convenient.
2. Double air bag and double doctor blade holder
- Install double doctor blade holder in the center press section and net section rolls. Due to the centrifugal force, the water and fine fibers in the hole of the vacuum pressure roller will not flow out and adhere to the roller doctor blade to destroy its surface tension, remove some water and fine fibers, and form a tiny negative pressure after the doctor blade to remove the water in the hole. After the fiber is completely discharged, it is cleaned by the second doctor blade.
- Prevent the net from regaining moisture and improve the dryness of the net. Experience has shown that after the vacuum roll uses pneumatic tire pressurized double doctor blade holder, the paper output dryness of the wire can be increased by 10-25%, and the investment cost can be recovered in a short time. At the same time, it can ensure the cleaning in the roll hole and the water content of the paper banner of the wire. Uniformity; the use of pneumatic tire pressure double doctor blade holder on the right roller of the press can thoroughly clean the water and fine fibers on the roller surface to prevent paper breaks and paper defects.
- The double doctor blade holder is divided into ABCD double doctor blade holder and ABC CM type double doctor blade holder. We will design according to the customer’s specific situation and provide customers with choices.
3. Wrinkle air bag type doctor blade holder for Yankee
- The choice of Yankee type wrinkle doctor blade holder using ABC airbag type doctor blade holder fixture, the roller has good contact flexibility with the doctor blade holder in full width. No detailed adjustments are required. Moreover, the doctor blade holder has good rigidity and stable wrinkling. It can stably provide the 1500～3500N/m line pressure required for wrinkling.