PRINTED OBJECT SURFACE TREATMENT-TYPE CONSTRUCTION 3D PRINTER

The present invention relates to a construction 3D printer for print-molding various structures, in which a spray pipe (60) follows a nozzle (10) for discharging concrete or mortar, and sprays a liquid material onto the surface of a printed object, thereby enabling the liquid material to be applied on the surface of the printed object. Through the present invention, the printing of the printed object and the spraying of the liquid material onto the surface of the printed object may be carried out simultaneously by means of the construction 3D printer, and thus a rapid and uniform coating treatment of the printed object is possible, and an adequate wet state of the structure of the printed object may be maintained. La présente invention concerne une imprimante 3D de construction pour le moulage par impression de diverses structures, dans laquelle un tuyau de pulvérisation (60) suit une buse (10) pour verser du béton ou du mortier, et pulvérise un matériau liquide sur la surface d'un objet imprimé, ce qui permet d'appliquer le matériau liquide sur la surface de l'objet imprimé. Grâce à la présente invention, l'impression de l'objet imprimé et la pulvérisation du matériau liquide sur la surface de l'objet imprimé peuvent être réalisées simultanément au moyen de l'imprimante 3D de construction, et ainsi un traitement de revêtement rapide et uniforme de l'objet imprimé est possible, et un état humide adéquat de la structure de l'objet imprimé peut être conservé. 본 발명은 각종 구조물을 출력 성형하는 건설용 3D 프린터에 관한 것으로, 콘크리트 또는 모르타르 등을 토출하는 노즐(10)을 분사관(60)이 추종하면서, 출력물 표면에 액재를 분사하여, 출력물 표면에 액재가 도포 처리되는 것이다. 본 발명을 통하여, 건설용 3D 프린터에 의한 출력물의 출력과 동시에 출력물 표면에 대한 액재 분사 처리가 수행될 수 있으며, 이로써 출력물의 신속하고 균일한 피복 처리가 가능하고, 출력물 조직의 적절한 습윤 상태 유지가 가능하다.