The Stretcher-Straightener is a specialized equipment used in the metal processing industry, particularly in the production of steel and non-ferrous metal sheet and strip materials, for stretching and straightening metal sheets. It combines the functions of stretching and straightening, applying specific tensile and straightening forces to the sheet through a series of precisely designed rolls to improve the internal stress distribution of the sheet, eliminate defects such as waves, bends, twists, and other imperfections produced during rolling, heat treatment, or other processing steps, thereby obtaining sheet products with higher flatness and better surface quality.
The working principle of the Stretcher-Straightener typically involves the following key steps:
Sheet Feeding: The sheet to be processed is fed into the inlet of the Stretcher-Straightener through a conveying device.
Stretching and Straightening: Once the sheet enters the working area of the Stretcher-Straightener, it is subjected to the combined action of multiple sets of rolls. These rolls, according to preset programs and parameters, apply gradually increasing tensile and straightening forces to the sheet, causing it to gradually become straight during the stretching process.
Sheet Output: The stretched and straightened sheet is output from the outlet of the Stretcher-Straightener, at which point the flatness and surface quality of the sheet have been significantly improved.
The Stretcher-Straightener has a wide range of applications in the metal processing field, not only improving the quality of the sheet but also enhancing the efficiency of subsequent processing steps such as shearing, stamping, and welding. Additionally, Stretcher-Straighteners can be customized according to the actual needs of users to meet the processing requirements of different specifications, materials, and thicknesses of sheets.