MOLD MANUFACTURING DEVICE FOR MAKING SHAPED BODIES BY MEANS OF SELECTIVE HARDENING OF MATERIAL POWDER Russian patent published in 2020 - IPC B29C67/02 B29C64/20 B29C64/255 B29C64/307 B22F3/105 

FIELD: machine building.

SUBSTANCE: invention relates to mold making device for fabricated shaped bodies by means of selective hardening of material powder in connected areas. Device includes process chamber (28) with inlet (32) of powder and outlet (36) of powder for excess material powder, device (80, 82) for supplying powder and powder recloser (74) connected or connected to powder outlet (74). Powder supply device (80, 82) and the powder regeneration device (74) are combined into a structural assembly made in the form of replaceable module (16; 16a). Unit has at least one input connector (46) and at least one output connector (48), which are compatible with appropriate connection sockets (40, 44) of powder inlet (32) and powder outlet (36) of process chamber (28). Device further includes blowdown device for blowing process chamber (28) with purging gas, preferably protective gas. Blowdown device includes gas inlet, gas outlet, connected after gas release filtration system (98, 102) and arranged in series connection with filtering system (98, 102) and preferably at outlet of filtration system (98, 102) gas supply device (104), in particular, pump, gas line system. Filtration system (98, 102) and gas supply device (104) are arranged in replaceable module (16a). Plug-in module (16a) is configured to switch from a disconnection position to a predetermined connection position, note here that in connection position it is integrated into mold manufacturing device so that connecting sockets (92, 94) of pipeline system are connected or may be connected to each other.

EFFECT: replacement of powder during construction process at low labor input at meeting high requirements to purity of material used in each case of powder.

15 cl, 8 dwg