DIE CASTING MACHINE INJECTION DEVICE AND CASTING METHOD

• Main Authors: TSURUGI YUUICHIROU, ISHIBASHI NAOKI, MURAKAMI KOUSEI
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2020
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING

Inflow of outside air into a suctioned sleeve is prevented, problems with molten metal are suppressed, and stable suction within the sleeve is realized. The injection device 1 of a die casting machine100 is configured to permit suction of a suction recess 120, which is partitioned by a tip 20 of a plunger 12, and a space 75 ahead of the front end of the tip 20. The inside of a sleeve 11 can be suctioned through penetrating portions 14, 15 that each penetrate the sleeve 11 from inside to outside at a prescribed first location C1 of the sleeve 11 in the advancing/retreating direction D1 of theplunger 12 and at a second location C2 set apart rearward from the first location C1. The opening area of the penetrating portion 15 at the first location C1 is greater than the opening area of the penetrating portion 14 at the second location C2. 防止外部气体向被抽吸的套筒内流入，抑制熔融金属的紊乱，实现套筒内的稳定的抽吸。压铸机(100)的注射装置(1)构成为能够对由柱塞(12)的冲头(20)划分出的抽吸用凹部(120)和冲头(20)的前端的前方的空间(75)进行抽吸。在柱塞(12)的进退方向(D1)上的套筒(11)的规定的第1部位(C1)、和从第1部位(C1)向后方离开的第2部位(C2)处，能