CN202447637U - An Improved Concentrated Exhaust Channel Structure of Die Casting Mold - Google Patents

Abstract

The utility model relates to a die casting die technical field especially relates to an exhaust passage structure is concentrated to modified die casting die. The utility model discloses a die casting die, die casting die are equipped with the die cavity, lay the filling runner of a plurality of molten metal liquid in the die cavity, and the end of filling the runner is connected with concentrated exhaust block through concentrating the exhaust passage, the department of turning to of concentrating the exhaust passage is equipped with the buffering package. The utility model discloses a concentrate exhaust passage turn to department and be equipped with the buffering package, should cushion the package and can slow down the velocity of flow of molten metal liquid effectively, exhaust effectual and safe and reliable.

Description

An Improved Concentrated Exhaust Channel Structure of Die Casting Mold

technical field

The utility model relates to the technical field of die-casting molds, in particular to an improved concentrated exhaust passage structure of the die-casting mold.

Background technique

Die-casting machine is a series of industrial casting machines that hydraulically inject molten metal into die-casting molds under pressure for cooling and forming, and obtain solid metal castings after mold opening. The die-casting mold is provided with a mold cavity, and a number of filling runners for molten metal liquid are arranged in the mold cavity. The ends of the filling runners are connected with centralized exhaust channels, and the centralized exhaust channels are connected with centralized exhaust blocks. The die-casting process requires that the flow rate of the molten metal in the filling channel is fast, while the flow rate in the concentrated exhaust channel is slow, so that the gas in the filling channel can be removed as much as possible to ensure the quality of the casting product.

The structure of the existing centralized exhaust channel of the die-casting mold is shown in Figure 1. The turning point of the centralized exhaust channel 1 adopts a smooth rounded corner 3 structure. When molten metal passes through the centralized exhaust channel 1, the resistance is small and the flow rate is relatively fast Fast, so when the molten metal reaches the centralized exhaust block 2, the pressure is relatively high, which makes the centralized exhaust block 2 easy to produce flying materials, resulting in poor exhaust effect and potential safety hazards.

Contents of the invention

The purpose of this utility model is to provide an improved concentrated exhaust duct structure of the die-casting mold in view of the deficiencies of the prior art. The steering part of the centralized exhaust duct of the die-casting mold is provided with a buffer package, which can effectively slow down the flow of molten metal. The flow rate of the liquid is high, the exhaust effect is good, and it is safe and reliable.

In order to achieve the above object, the utility model is realized through the following technical solutions.

An improved centralized exhaust passage structure of a die-casting mold, including a die-casting mold, the die-casting mold is provided with a cavity, and a number of filling channels for molten metal liquid are arranged in the cavity, and the end of the filling flow channel passes through the centralized exhaust channel and the centralized discharge channel. The air block is connected, and the turning point of the centralized exhaust passage is provided with a buffer package.

Wherein, the buffer bag is recessed along the flow direction of molten metal.

Wherein, the cushioning bag is in the shape of an arc.

Wherein, the turning angle of the turning point of the centralized exhaust passage is 90°.

Wherein, the turning angle of the turning point of the centralized exhaust passage is 135°.

Wherein, the centralized exhaust duct is provided with more than two buffer packages.

Wherein, the centralized exhaust duct is in the shape of a tree branch.

Wherein, the die-casting mold is provided with a plurality of concentrated exhaust passages.

The beneficial effects of the utility model are as follows: an improved concentrated exhaust channel structure of a die-casting mold, including a die-casting mold, the die-casting mold is provided with a cavity, and a number of filling channels for molten metal liquid are arranged in the cavity, and the ends of the filling channels are The centralized exhaust channel is connected to the centralized exhaust block, and a buffer package is provided at the turning point of the centralized exhaust channel. When the molten metal enters the centralized exhaust passage, the molten metal will first flow through the buffer bag at the turning point of the centralized exhaust passage, and then turn from the buffer bag to enter the centralized exhaust passage, thereby slowing down the flow of molten metal in the concentrated exhaust. Therefore, when the molten metal reaches the centralized exhaust block, the pressure of the molten metal has been reduced. After being filtered by the centralized exhaust block, the molten metal can be effectively blocked in the centralized exhaust block without The case of rushing out of the centralized exhaust block to generate flying materials makes the die casting process safe and reliable. In addition, because the fluidity of the gas in the centralized exhaust channel is stronger than that of the molten metal, the buffer package will not affect the flow rate of the gas in the concentrated exhaust channel, and reducing the flow rate of the molten metal will increase the exhaust volume in the cavity of the die-casting mold , the exhaust effect is better.

Description of drawings

The utility model will be further described below using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present utility model.

FIG. 1 is a schematic structural view of a centralized exhaust channel of an existing die-casting mold.

Fig. 2 is a structural schematic diagram of the concentrated exhaust channel of the die-casting mold of the present invention.

Fig. 3 is a partially enlarged view of A in Fig. 2 .

In Fig. 1, Fig. 2, Fig. 3 include:

1——Concentrated exhaust duct 2——Concentrated exhaust block

3——Smooth rounded corners 4——Cushion package.

Detailed ways

The utility model will be further described below in conjunction with embodiment.

As shown in Fig. 2 and Fig. 3, an improved concentrated exhaust channel structure of a die-casting mold includes a die-casting die, a die-casting die is provided with a cavity, and a number of molten metal filling channels are arranged in the cavity, and the filling channels The end is connected with the centralized exhaust block 2 through the centralized exhaust passage 1, and a buffer bag 4 is provided at the turning point of the centralized exhaust passage 1. When the molten metal enters the centralized exhaust passage 1, the molten metal will first flow through the buffer bag 4 at the turning point of the centralized exhaust passage 1, and then turn from the buffer bag 4 into the concentrated exhaust passage 1, thus slowing down the melting process. The flow rate of the molten metal in the concentrated exhaust channel 1, so when the molten metal reaches the concentrated exhaust block 2, the pressure of the molten metal has been reduced, and the molten metal can be effectively blocked in the concentrated exhaust block 2 after filtering Concentrated in the exhaust block 2, without rushing out of the centralized exhaust block 2 to generate flying materials, so that the die-casting process is safe and reliable. In addition, because the fluidity of the gas in the centralized exhaust channel 1 is stronger than that of the molten metal, the buffer package 4 will not affect the flow rate of the gas in the centralized exhaust channel 1, and reducing the flow rate of the molten metal will increase the cavity of the die-casting mold. The exhaust volume inside, the exhaust effect is better.

Further, the buffer bag 4 is sunken along the flow direction of the molten metal, and the direction indicated by the arrow in Fig. 3 is the flow direction of the molten metal, and the molten metal enters the buffer bag 4 along the centralized exhaust channel 1, and after being decelerated by the buffer bag 4 Turning again, the flow direction of the molten metal at the turning point of the concentrated exhaust channel 1 is concave to form a buffer bag 4, which has a simple structure and is convenient for the production and manufacture of die-casting molds.

Further, the buffer bag 4 is in the shape of an arc, so that the molten metal can flow along the arc track of the buffer bag 4 and prevent the molten metal from being blocked in the buffer bag 4 .

The turning angle of the turning point of the centralized exhaust passage 1 described in this embodiment is 90°, and as another preferred embodiment, the turning angle of the turning point of the centralized exhaust passage 1 is 135°, which can effectively slow down the flow of molten metal. The flow rate will not affect the gas discharge in the centralized exhaust channel 1. The centralized exhaust channel 1 is provided with more than two buffer bags 4, which can further reduce the flow rate of molten metal. The centralized exhaust channel 1 is in the shape of a tree branch, and several filling paths in the cavity of the die-casting mold realize centralized exhaust. The die-casting mold is provided with a plurality of centralized exhaust passages 1, and the exhaust effect is better. the

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (8)

1. An improved concentrated exhaust passage structure of a die-casting mold, including a die-casting mold, the die-casting mold is provided with a cavity, and a number of filling channels for molten metal liquid are arranged in the cavity, and the end of the filling flow channel passes through the centralized exhaust channel and Centralized exhaust block connection, characterized in that: the turning point of the centralized exhaust channel is provided with a buffer package. 2. The improved centralized exhaust channel structure of a die-casting mold according to claim 1, characterized in that: said buffer package is recessed along the flow direction of molten metal. 3. The improved concentrated exhaust duct structure of a die-casting mold according to claim 1, characterized in that: the buffer package is in the shape of an arc. 4. The improved centralized exhaust channel structure of a die-casting mold according to claim 1, characterized in that: the turning angle of the centralized exhaust channel is 90°. 5 . The improved centralized exhaust channel structure of a die-casting mold according to claim 1 , wherein the turning angle of the centralized exhaust channel is 135°. 6. The improved centralized exhaust channel structure of a die-casting mold according to claim 1, characterized in that: said centralized exhaust channel is provided with more than two buffer packages. 7. The improved centralized exhaust channel structure of a die-casting mold according to claim 1, wherein the exhaust channel is in the shape of a tree branch. 8. An improved centralized exhaust passage structure of a die-casting mold according to claim 1, characterized in that: said die-casting mold is provided with a plurality of centralized exhaust passages.

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