Non Contact Laser Profiling Verification Baseline Setup in Board Converting
Establish an isolated vacuum datum and calibrate 405-nanometer sensors to eliminate sub-surface scattering errors during board crease verification.
Carton Erection Force
Resistance Measurement
Mechanical resistance encountered when a flat-folded carton blank is opened into its three-dimensional rectangular shape. Carton erection force determines the efficiency of high-speed filling equipment where mechanical arms must overcome the structural stiffness of the board and creases. This value is expressed in milli-Newtons and indicates the force required to break the initial friction of the scored edges.
Filling Efficiency
Automated packaging lines operate on tight timing cycles that assume the carton will pop open under a specific vacuum or mechanical load. If the carton erection force exceeds the machine capability, the blank may fail to open fully or may buckle under the stress. This leads to downtime and potential damage to the filling heads.
Low force values can also be problematic because the carton may lose its shape or fail to provide enough resistance for the insertion of the product.
Material Influence
Long grain direction and the chemical composition of the pulp affect how the creases respond to opening stresses. Converting plants monitor this property to ensure that the moisture level in the board has not dropped too low, which increases stiffness and potential cracking. Testing involves a specialized jig that simulates the movement of the packing machine to record the peak force during the opening stroke.
Consistent erection force allows for higher run speeds and reduced waste during the start of a production batch.