Point pressure type cold core box

The utility model discloses a point pressure type cold core box, which relates to the technical field of casting production, and comprises an upper core box body and a lower core box body, an accommodating cavity for accommodating a sand core is arranged between the upper core box body and the lower core box body, the upper end of the upper core box body is provided with a sand shooting plate or a blowing plate, and the lower end of the upper core box body is provided with an air blowing plate. The upper end of the upper core box body is provided with a sand shooting nozzle matched with the sand core, the upper core box is provided with a pressing structure hole corresponding to the local high point position of the sand core, a secondary pressing mechanism is arranged in the pressing structure hole, and the sand shooting nozzle and the pressing structure hole are internally provided with air blowing pressing rods matched with each other to press the sand core. By arranging the secondary pressing mechanism, se