Protection structure for maintaining mold sliding block

The utility model discloses a protection structure for maintaining a mold sliding block. Moving die, the movable mold comprises an upper sliding block and a plurality of guide columns; the upper sliding block is slidably connected with a guide column. A driving device for driving the upper sliding block to slide along the axis of the guide pillar is also arranged; the upper portion of the upper sliding block is provided with a sliding rod extending out in the axis direction of the guide column. A plurality of limiting grooves are formed in the sliding rod; a limiting rod which is matched withthe limiting groove to limit the position of the sliding rod is arranged on the movable mold; according to the protection structure for maintaining the mold sliding block, through cooperation of the limiting rod and the limiting groove, the position of the sliding rod is limited, so that the height of the upper sliding block is limited, separation of the movable mold and the fixed mold is kept when equipment is shut down,