A tie bar, also known as a tie rod, is a structural component designed to carry tensile loads. Due to its high length-to-cross-section ratio, a tie bar is not suited for compressive forces, as it tends to buckle under such conditions. Its working strength is determined by multiplying the allowable working stress with the bar’s minimum cross-sectional area, ensuring it can withstand the necessary tension without failure.
Tie bars are commonly used in plastic injection molding machines, especially those with medium or large tonnage. In these machines, they help adjust the plate’s distance through the ring groove, providing stability and precision during the molding process. Their ability to maintain structural integrity under tension makes them essential for various industrial applications requiring controlled force distribution.