| 摘要 |
The present invention relates to a quadrilateral cylinder of a hot runner system, comprising: a cylinder cover forming a quadrilateral body, and including a coupling hole on one edge inside the body and the edge on the diagonal position corresponding to one edge; a piston vertically moved on the lower end of the cylinder cover, and having a parallelogram shape; a piston housing formed on the outer side surface of an area where the piston is vertically moved; a piston guide acting as a guide for the vertical motion of the piston; and a fixing plate having a corresponding coupling part for fixing the cylinder cover, and having an opening where the piston is connected to the outside through the piston guide on the lower end. |
