JPH06190531A - Die casting equipment - Google Patents

Abstract

(57) [Summary] [Construction] In a horizontal cold chamber die casting machine, a main core 8 is supported by a movable mold insert 4 in a movable mold body 7. Molten metal is injected from the pouring port 1 and injected into the cavity 5 formed by the fixed mold insert 3 and the movable mold insert 4 by the injection tip 2 to obtain a die cast product. [Effect] The main core part, which is severely deteriorated, can be replaced easily and quickly without dropping the mold from the machine. Also,
Operating rate of casting machine Product yield can be improved significantly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die casting main core used in die casting.

[0002]

2. Description of the Related Art Since a main core for die casting is used in a harsh condition, it is necessary to disassemble the mold each time the mold is remodeled, repaired, or maintained. It was possible.

[0003]

When the die structure of the conventional main core for die casting is designed and manufactured, it is exposed to high temperature and high pressure for each casting, and seizure and scuffing of the main core occur. Even if such a problem occurs, it is impossible to disassemble the main core on the machine, so that there is a problem that productivity is significantly reduced and disassembly and assembly cannot be smoothly handled.

An object of the present invention is to improve the product yield and productivity by changing the mold structure so that the mold structure can be adjusted and replaced on the machine.

[0005]

SUMMARY OF THE INVENTION The present invention resides in a die-casting device in which only the core is replaced on the machine without disassembling the mold when adjusting and replacing the main core of the same shape.

[0006]

The main core has a mold structure which is fixed by the shape of the flange. In this method, when replacing the main core due to a defect, it took a long time to disassemble and assemble the entire mold, and to disassemble the mold. This time, since the guide shaft and the fixing pin are newly installed with the entire die mounted on the machine and fixed with bolts, it is possible to easily and accurately obtain a predetermined size.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

In the horizontal cold chamber die casting machine, the main core 8 is supported by the movable mold insert 4 in the movable mold body 7.

Molten metal is poured from a pouring port 1 and is injected by an injection tip 2 into a cavity 5 formed by a fixed mold insert 3 and a movable mold insert 4 to obtain a die cast product.

As shown in FIG. 2, the main core can be easily replaced by disassembling the fixing pin 2 and the bush 3 so that the mold structure can be disassembled easily and accurately.

The dimensions are fixed pin 2 in the forward direction and bush 3
The movable pin 4 is used for positioning.

[0012]

According to the present invention, the main core portion, which is severely deteriorated, can be replaced easily and quickly, and the mold can be replaced from the machine without dropping it. In addition, the operating rate of the casting machine can greatly improve the product yield.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a general die casting mold structure.

FIG. 2 is an explanatory view of a main core exchange structure of the present invention.

[Explanation of symbols]

2 ... Fixed pin, 3 ... Bushing, 4 ... Movable pin, 8 ... Main core.

Claims (1)

[Claims] 1. A die-casting device, wherein main cores of the same shape can be adjusted and exchanged on the machine without disassembling a mold in the adjustment and exchange of the main cores.