This utility model discloses a double-set roller pre-pressing guide mechanism for an extrusion blow molding machine, which includes an adjustable bracket. Fixed supports are arranged at both ends of the adjustable bracket, and two driving rollers are installed on the fixed supports; dovetail grooves are also arranged on the fixed supports, and sliders are installed on the fixed supports through the dovetail grooves. Cylinders are arranged at both ends of the fixed supports, and the output ends of the cylinders are connected with the sliders; two driven rollers are arranged outside the two driving rollers, and the two driven rollers are respectively fixed by a set of sliders, and limit blocks are installed on the sliders. The device can reduce the deformation of the parison and improve the uneven thickness of the parison. The mechanism has a compact structure and is easy to install, and can be easily installed on a continuous extrusion blow molding machine with a double-sheet die. It solves the problems that the existing pre-pressing guide mechanism can only be applied to a continuous extrusion blow molding machine with a single-sheet die, with large parison internal stress, bloated structure and large volume, simplifies the equipment structure, reduces the equipment cost, and improves the product stability.
Country Code: CN
Application Number: CN202021517711.3
