INJECTOR OF DIE CAST MACHINE AND CASTING METHOD

To suppress violence of molten metal by preventing outside air from flowing into a suctioned sleeve to achieve stable suction in the sleeve.SOLUTION: An injector 1 of a die cast machine 100 is configured so that a recessed part 120 for suction partitioned in a chip 20 of a plunger 12 and a space 75...

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Bibliographic Details
Main Authors ISHIBASHI NAOKI, TSURUGI YUICHIRO, MIYAMOTO HISAO
Format Patent
LanguageEnglish
Japanese
Published 16.01.2020
Subjects
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Summary:To suppress violence of molten metal by preventing outside air from flowing into a suctioned sleeve to achieve stable suction in the sleeve.SOLUTION: An injector 1 of a die cast machine 100 is configured so that a recessed part 120 for suction partitioned in a chip 20 of a plunger 12 and a space 75 in front of a front end of the chip 20 can be suctioned. In a sleeve 11 are formed, parallely in a backward and forward direction D1 of the plunger 12, two or more suction ports 14-17 through which inside of the sleeve 11 can be suctioned. Corresponding to a position of the plunger 12 that moves forward with respect to the sleeve 11, at least one of the two or more suction ports 14-17 is selectively communicated with a space 75 at a front side, and at least one of the two or more suction ports 14-17 is selectively communicated with inside of the recessed part 120 for suction.SELECTED DRAWING: Figure 4 【課題】吸引されたスリーブ内への外気の流入を防いで溶湯の暴れを抑制し、スリーブ内の安定した吸引を実現すること。【解決手段】ダイカストマシン１００の射出装置１は、プランジャ１２のチップ２０に区画された吸引用凹部１２０と、チップ２０の前端よりも前方の空間７５とを吸引可能に構成されている。スリーブ１１には、スリーブ１１の内側を吸引可能な２以上の吸引口１４〜１７がプランジャ１２の進退方向Ｄ１に並んで形成されている。スリーブ１１に対して前進するプランジャ１２の位置に応じて、２以上の吸引口１４〜１７のうちから選択的に少なくとも１つが前方の空間７５と連通し、２以上の吸引口１４〜１７のうちから選択的に少なくとも１つが吸引用凹部１２０の内側と連通する。【選択図】図４
Bibliography:Application Number: JP20180237978