The length and diameter of the drum of the non-woven fabric calender machine when it is used refers to the length and diameter of the working portion of the drum. This is a characteristic parameter that characterizes the size of the calender.
Roll length of non-woven fabric calender machine
The roll length characterizes the large size of the calenderable article. Since the two ends need to leave the position where the baffle is placed, the effective length of the roll is the roll length minus the non-working surface length (about 15% roll length).
Roller length to diameter ratio of non-woven fabric calender machine
The ratio of the length of the working portion of the roller to the diameter is called the aspect ratio. The aspect ratio (or roll diameter) of the rolls primarily affects the thickness dimensional accuracy of the rolled product (except for the different diameter rolls). In addition to the properties of the calendered material, the material of the roll and the length of the working part, it depends mainly on the quality requirements of the rolled product.
Relationship between roll diameter and transverse pressure and power, aspect ratio and stiffness of non-woven fabric calender machine
Roller diameter versus transverse pressure and power. The larger the diameter of the roller, the larger the lateral pressure, and the greater the required driving power, which is almost linear. The aspect ratio of the roller mainly affects the stiffness of the roller, and is the rigidity ratio of the roller with a diameter of φ 610 mm at different length to diameter ratios.
Determination of roll length, diameter and length to diameter ratio
The length, diameter and aspect ratio of the roller are mainly determined according to the production process requirements of the product, that is, according to the type of the raw material to be processed, the thickness range and width range of the rolled product, and the rolling speed of the roller (ie, the production requirement).www.embochina.com