# US 11,440,088 B2 · Die casting machine and die casting method

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- Number: US 11,440,088 B2
- Document ID: US11440088B2
- Status: Granted
- Kind: B2
- Application number: 17/321,035
- Filed: 2021-05-14
- Published: 2022-04-21
- Granted: 2022-09-13
- Earliest claimed: 2020-10-20
- Assignees: Shenzhen Leadwell Technology Co., Ltd.
- Applicants: Shenzhen Leadwell Technology Co., Ltd.
- Inventors: Siong Song Liu; Lingling Pan; Caisheng Liu; Defei Cheng; Zhuoming Liu
- Web page: https://patentgrep.com/patent/US11440088B2

## CPC

- B22D 17/2015: {Means for forcing the molten metal into the die (for plastics B29C45/46)}
- B22D 17/2053: {using two or more cooperating injection pistons}
- B22D 17/08: Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
- B22D 17/2272: {Sprue channels}
- B22D: CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection of substances to be added to metal C21, C22)

## Abstract

The present disclosure relates to a die casting machine and a die casting method. The die casting machine used in cooperation with a mold (or die) having a die cavity configured to receive molten liquid and includes a plurality of injection mechanisms connected to the mold (or die). Each injection mechanism is provided with an injecting channel through which molten liquid is injected into the die cavity. The plurality of injecting channels are in connection with different positions of the die cavity.

## Claims

### Claim 1

A die casting machine, used in cooperation with a mold or die having a die cavity configured to receive molten liquid, the die casting machine comprising:
a plurality of injection mechanisms in connection with the mold or die, each injection mechanism being provided with an injecting channel, molten liquid being injected into the die cavity through the plurality of injecting channels, the plurality of injecting channels being in connection with different positions of the die cavity,
wherein the die cavity is partially defined by a left inner wall of the mold or die, the plurality of injection mechanisms comprise a left injection mechanism whose injecting channel extends through the left inner wall,
wherein the die cavity is further partially defined by a right inner wall of the mold or die, the left inner wall and the right inner wall are spaced apart in a first direction, the plurality of injection mechanisms comprise a right injection mechanism whose injecting channel extends through the right inner wall,
wherein the die cavity is further partially defined by a front inner wall and a rear inner wall of the mold or die, the front inner wall and the rear inner wall are spaced apart in a second direction perpendicular to the first direction, the front, left, rear, and right inner walls are successively connected, the plurality of the injection mechanisms further comprise a front injection mechanism whose injecting channel extends through the front inner wall and a rear injection mechanism whose injecting channel extends through the rear inner wall, and
wherein the die cavity is further partially defined by an upper inner wall and a lower inner wall of the mold or die, the upper inner wall and the lower inner wall are spaced apart in a third direction perpendicular to the first direction and the second direction, the upper inner wall is connected to upper ends of the front, left, rear, and right inner walls, the lower inner wall is connected to lower ends of the front, left, rear, and right inner walls, the plurality of the injection mechanisms further comprise an upper injection mechanism whose injecting channel extends through the upper inner wall and a lower injection mechanism whose injecting channel extends through the lower inner wall.

### Claim 2 (depends on 1)

The die casting machine according to claim 1, wherein a central axis of the injecting channel of the left injection mechanism and a central axis of the injecting channel of the right injection mechanism are parallel with the first direction.

### Claim 3 (depends on 1)

The die casting machine according to claim 1, wherein a central axis of the injecting channel of the left injection mechanism and a central axis of the injecting channel of the right injection mechanism form an angle with the first direction.

### Claim 4 (depends on 1)

The die casting machine according to claim 1, wherein a central axis of the injecting channel of the front injection mechanism and a central axis of the injecting channel of the rear injection mechanism are parallel with or inclined with the second direction.

### Claim 5 (depends on 1)

The die casting machine according to claim 1, wherein a central axis of the injecting channel of the upper injection mechanism and a central axis of the injecting channel of the lower injection mechanism are parallel with or inclined with the third direction.

### Claim 6 (depends on 1)

The die casting machine according to claim 1, wherein the mold or die is provided with a plurality of casting channels in connection with the die cavity, the injection mechanism further comprises an injecting chamber inserted into the casting channel, the injecting channel is provided in the injecting chamber.