Manufacturing device and method for powder forming

The invention discloses a manufacturing device and method for powder forming. The device comprises a support, a hydraulic pump station system and a PLC system, wherein an upper hydraulic cylinder, an upper guiding disc and an upper die are installed on the upper portion of the support from top to bottom in sequence, a lower hydraulic cylinder, a lower guiding disc, a lower die and a core rod are installed on the lower portion of the support from bottom to top in sequence, and a vertically-through high-pressure oil cylinder is installed in the middle of the support; a supportable flexible sleeve is arranged on the inner circumference of the body of the high-pressure oil cylinder in a sleeving mode, the upper end and lower end of the flexible sleeve and the inner wall of the body are sealed in a pressed mode, a feeding cavity is formed in the inner side of the flexible sleeve, and an airtight oil inlet cavity is formed between the outer side of the flexible sleeve and the wall of the cylinder. By the adoption of the device and method, powder and hydraulic oil can be completely isolated, pressurization is stable, the quality of formed blank is high, the traditional manual operation mode is changed, the operation process is automatically controlled through a PLC, operation is easy, multiple pieces of equipment can be controlled for production by only one person instead of three to four persons required before, and production cost is reduced greatly.