CN221134006U

CN221134006U - Pouring device and die casting die

Info

Publication number: CN221134006U
Application number: CN202323066666.0U
Authority: CN
Inventors: 姜晓锋; 朱长春; 黄武俊
Original assignee: Shanghai Ziyan Alloy Application Technology Co ltd
Current assignee: Shanghai Ziyan Alloy Application Technology Co ltd
Priority date: 2023-11-14
Filing date: 2023-11-14
Publication date: 2024-06-14
Anticipated expiration: 2033-11-14

Abstract

The utility model relates to the technical field of die casting dies, in particular to a pouring device and a die casting die. The pouring device in this embodiment includes main runner, cross runner, a plurality of branch runner and a plurality of vertical runner, because the intercommunication between cross runner and the branch runner to and the branch runner distributes along the extension direction of cross runner, the molten metal can be in whole die cavity evenly distributed, can ensure that the molten metal fills every part of die cavity to reduce the inhomogeneous product bad problem that leads to of filling. The vertical pouring gates are arranged on the branch pouring gate and are vertically communicated, so that molten metal is directly filled along each rib or a cavity in a specific area, molten metal turbulence and gas rolling caused by the fact that the molten metal directly impacts the cavity wall are avoided, bad phenomena such as oxidation, slag inclusion and gas rolling can be reduced, and the forming quality of products is improved. Because a plurality of vertical pouring gates are arranged to be respectively and independently filled with a plurality of ribs, each rib can be uniformly filled at the same time, and the problem of nonuniform filling of each rib is avoided.

Description

Pouring device and die casting die

Technical Field

The utility model relates to the technical field of die casting dies, in particular to a pouring device and a die casting die.

Background

Die casting is an important metal forming process for manufacturing high-precision and high-strength metal parts, particularly magnesium alloy parts. The die casting die is a core component of the process and consists of a plurality of parts including a pouring system, an overflow system, an ejection system and a temperature regulating system. Among them, the casting system plays a vital role in the molding quality of the final product. The pouring system in the die casting die is a key component for ensuring that molten metal fills the cavity, and whether the design is reasonable directly influences the molding quality of a final product. The pouring channel structure not only affects the flow direction of molten metal, but also affects the filling time, the filling speed, overflow exhaust and the control of the temperature of the die, and has a decisive effect on the molding quality of the product.

For products with more ribs and cooling ribs, conventional runner designs often fail to meet the requirements. In the filling process, the flow state of the molten metal is easy to be disturbed, so that problems such as serious adverse phenomena of oxidization, slag inclusion, gas coiling and the like are often caused, and the forming quality and the forming yield of the product are seriously influenced. Unreasonable runner designs and structures are not adapted to the requirements of a particular product and are the root cause of the adverse event. The pouring channel design in the prior art can not effectively guide molten metal to uniformly fill the rib structure, and can remove gas, so that the problems of uneven filling, gas coiling, oxidization, slag inclusion and the like are caused.

Therefore, a casting device and a die casting mold are needed to solve the above problems.

Disclosure of utility model

The utility model aims to provide a pouring device which can improve the molding yield of rib structure products.

To achieve the purpose, the utility model adopts the following scheme:

The pouring device is used for pouring molten metal into the cavity and comprises a main runner, a horizontal runner, a plurality of sub runners and a plurality of vertical gates, wherein the horizontal runner is communicated with the main runner, the plurality of sub runners are communicated with the horizontal runner, the plurality of sub runners are distributed along the extending direction of the horizontal runner, and the plurality of vertical gates are respectively vertically communicated and installed on the plurality of sub runners.

Illustratively, the casting apparatus further comprises a cold charge well disposed in communication with the main runner and the runner.

Illustratively, the cold charge well is a fan-shaped cold charge well.

Illustratively, the casting apparatus further includes a runner base mounted to a bottom of the runner.

The pouring device comprises two cold material wells, and the two cold material wells are respectively arranged at two sides of the main pouring channel.

Illustratively, a plurality of the sub-runners are symmetrically distributed with respect to the main runner.

The main runner and the runner are in arc transition communication in an exemplary manner.

The cross gate is illustratively in circular arc transitional communication with the branch gate.

Illustratively, the height positions of a plurality of the vertical gates are the same.

Another object of the present utility model is to provide a die casting mold capable of improving the molding yield of rib structure products.

To achieve the purpose, the utility model adopts the following scheme:

a die casting die comprising the casting device of any one of the above.

The beneficial effects of the utility model are as follows:

In the pouring device provided by the utility model, because the cross gate is communicated with the branch gate and the branch gate is distributed along the extending direction of the cross gate, molten metal can be uniformly distributed in the whole cavity, each part of the cavity can be ensured to be filled with the molten metal, and the problem of poor products caused by uneven filling can be solved by the rib structure or other special shapes. The vertical pouring gates are arranged on the branch pouring gate and are vertically communicated, so that molten metal is directly filled along each rib or a cavity in a specific area, molten metal turbulence and gas rolling caused by the fact that the molten metal directly impacts the cavity wall are avoided, accurate control of molten metal flowing is achieved, bad phenomena of oxidization, slag inclusion, gas rolling and the like can be reduced, and the forming quality of products is improved. Because a plurality of vertical pouring gates are arranged to be respectively and independently filled with a plurality of ribs, each rib can be uniformly filled at the same time, and the problem of nonuniform filling of each rib is avoided.

In the die casting die provided by the utility model, the cross runner and the branch runner of the pouring device are communicated, the branch runners are distributed along the extending direction of the cross runner, the molten metal can be uniformly distributed in the whole die cavity, each part of the die cavity can be ensured to be filled with the molten metal, and the problem of poor products caused by uneven filling is solved. The vertical pouring gates are arranged on the branch pouring gate and are vertically communicated, so that molten metal is directly filled along each rib or a cavity in a specific area, molten metal turbulence and gas rolling caused by the fact that the molten metal directly impacts the cavity wall are avoided, accurate control of molten metal flowing is achieved, bad phenomena of oxidization, slag inclusion, gas rolling and the like can be reduced, and the forming quality of products is improved. Because a plurality of vertical pouring gates are arranged to be respectively and independently filled with a plurality of ribs, each rib can be uniformly filled at the same time, and the problem of nonuniform filling of each rib is avoided.

Drawings

FIG. 1 is a schematic view of a part of a casting device according to the present utility model at one view angle;

FIG. 2 is a schematic view of the casting device according to the present utility model in operation;

Fig. 3 is a schematic structural view of the casting device according to the present utility model at another view angle.

In the figure:

100. A main runner; 200. a cross gate; 300. a branch pouring channel; 400. a vertical gate; 500. a cold material well; 600. a sliding base; 700. a cavity.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present utility model are shown.

In the present utility model, directional terms, such as "upper", "lower", "left", "right", "inner" and "outer", are used for convenience of understanding and are not to be construed as limiting the scope of the present utility model unless otherwise specified.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The present embodiment provides a die casting mold including a casting device for casting molten metal into a cavity 700. As shown in fig. 1 to 3, the pouring device in this embodiment includes a main runner 100, a runner 200, a plurality of sub-runners 300 and a plurality of vertical gates 400, the runner 200 communicates with the main runner 100, the plurality of sub-runners 300 communicate with the runner 200, the plurality of sub-runners 300 are distributed along the extending direction of the runner 200, and the plurality of vertical gates 400 are respectively vertically installed in the plurality of sub-runners 300 in a communicating manner. When producing the product of more ribs and heat dissipation rib structures, the metal liquid flowing state of the existing runner form is easy to be disturbed in the filling process, so that serious defects such as oxidization, slag inclusion, gas coiling and the like often occur on the ribs, and the product forming yield is seriously affected. In the pouring device of the present embodiment, due to the communication between the runner 200 and the branch runner 300 and the distribution of the branch runner 300 along the extending direction of the runner 200, the molten metal can be uniformly distributed in the entire cavity 700, and each part of the cavity 700 can be ensured to be filled with the molten metal, including the rib structure or other special shapes, so as to reduce the problem of poor products caused by uneven filling. The plurality of vertical pouring gates 400 are arranged on the branch pouring gate 300 and are vertically communicated, so that molten metal is directly filled along the cavity 700 of each rib or a specific area, molten metal is prevented from being disturbed and curled up due to the fact that the molten metal directly impacts the wall of the cavity 700, the precise control of molten metal flow is realized, bad phenomena such as oxidization, slag inclusion and curled up are reduced, and the forming quality of products is improved. Because a plurality of vertical gates 400 are provided to fill a plurality of ribs separately, each rib can be filled uniformly at the same time, avoiding the problem of uneven filling of each rib.

Further, the pouring device in this embodiment further includes a cold material well 500, where the cold material well 500 is disposed and connected to the connection between the main runner 100 and the runner 200. The placement of the cold feed well 500 at the junction of the main runner 100 and the runner 200 allows molten metal to remain in this region prior to entering the cavity 700. In the cold well 500, impurities, bubbles, and solid particles have the opportunity to precipitate and separate, thereby reducing the likelihood of these impurities entering the final product. By removing the impurities, the cold charge well 500 can improve the quality of the molten metal, which is advantageous for manufacturing high quality die casting products, and avoids defects and waste products of the products due to quality problems of the molten metal. Meanwhile, the cold material well 500 is beneficial to reducing adverse phenomena in the product, such as bubbles, slag inclusion and oxidation, thereby improving the molding quality and molding yield of the product.

Preferably, the cold charge well 500 in this embodiment is a fan-shaped cold charge well 500. The fan-shaped cold material well 500 can further guide impurities, bubbles and solid particles in the molten metal to the fan-shaped cold material well 500, deposit and gather the impurities and the bubbles, thereby separating out the impurities and improving the quality of the molten metal.

Further, the pouring device in this embodiment further includes a runner base 600, and the runner base 600 is mounted to the bottom of the runner 200. By installing the runner base 600 at the bottom of the runner 200, the vertical gate 400 may be provided at the upper end of the product rib so that molten metal may fill the cavity 700 from top to bottom rather than from bottom to top. The top-down filling can reduce the possibility of gas being involved in the molten metal, as compared with the bottom-up filling, thereby improving the filling effect. By reducing the possibility of gas being involved in the molten metal, the problem of gas entrainment is avoided. Gassing is a common undesirable phenomenon in die casting processes, resulting in bubbles or surface defects in the product. By filling from top to bottom, the molten metal can more smoothly enter the cavity 700, reducing the mixing of gas.

Preferably, the pouring device in this embodiment includes two cold material wells 500, and the two cold material wells 500 are respectively disposed at two sides of the main runner 100. By locating the cold feed well 500 on both sides of the main runner 100, the likelihood of agitation and turbulence as the molten metal flows through the cold feed well 500 is reduced, which is beneficial to maintaining a steady flow of molten metal and reducing entrainment of gas. In addition, by providing two cold feed wells 500 on either side of the main runner 100, the surface area for cooling and purifying the molten metal can be increased, such that more impurities, bubbles, and solid particles are separated and precipitated as the molten metal flows through the cold feed wells 500.

Further preferably, the plurality of sub-runners 300 in this embodiment are symmetrically distributed with respect to the main runner 100. The symmetrical distribution of the plurality of branch runners 300 can enable molten metal to be uniformly distributed in the whole cavity 700, so that adverse phenomena are reduced, rejection rate is reduced, and production efficiency is improved.

Specifically, the main runner 100 and the runner 200 in this embodiment are in arc transition communication. The circular arc transition communication mode enables the molten metal to smoothly transition between the main runner 100 and the cross runner 200, reduces the resistance when the molten metal flows, and enables the molten metal to stably flow without being affected by abrupt changes. The arc transition communication mode can reduce vortex and turbulence, prevent molten metal from stirring and unevenly flowing in a transition area, and further maintain stable filling of the molten metal. The smooth arc transition communication mode is beneficial to the uniform distribution of molten metal, and the molten metal flows from the main runner 100 to the transverse runner 200, so that the filling uniformity is improved, and the problem of non-uniform filling is reduced.

Specifically, the cross gate 200 and the branch gate 300 in this embodiment are in arc transition communication. The circular arc transition communication mode enables the molten metal to smoothly transition between the cross runner 200 and the branch runner 300, reduces resistance and interference when the molten metal flows, and enables the molten metal to stably flow at the communication position. The arc transition communication mode can reduce the flow resistance, so that the molten metal can more easily pass through the communication position of the cross gate 200 and the branch gate 300, thereby improving the filling efficiency. The smooth arc transition communication mode can ensure that the molten metal is uniformly filled into the branch pouring channels 300, and ensure that each branch pouring channel 300 can obtain enough molten metal, thereby reducing the risk of uneven filling.

Preferably, the height positions of the plurality of vertical gates 400 in the present embodiment are the same. Since the height positions of the plurality of vertical gates 400 are the same, molten metal will have the same filling height when entering the cavity 700 from the vertical gates 400, so that the cavity 700 in different parts can be filled with the same molten metal, and the possibility of uneven filling is reduced.

It is to be understood that the above-described embodiments of the present utility model are provided by way of illustration only and not limitation of the embodiments thereof. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The pouring device is used for pouring molten metal into a cavity (700), and is characterized by comprising a main pouring channel (100), a cross pouring channel (200), a plurality of sub pouring channels (300) and a plurality of vertical pouring channels (400), wherein the cross pouring channel (200) is communicated with the main pouring channel (100), the sub pouring channels (300) are communicated with the cross pouring channel (200), the sub pouring channels (300) are distributed along the extending direction of the cross pouring channel (200), and the vertical pouring channels (400) are respectively and vertically communicated with the sub pouring channels (300).

2. The casting apparatus according to claim 1, further comprising a cold charge well (500), the cold charge well (500) being arranged and in communication with the main runner (100) in communication with the runner (200).

3. Pouring device according to claim 2, wherein the cold charge well (500) is a fan-shaped cold charge well (500).

4. A casting device according to any one of claims 1-3, further comprising a runner base (600), the runner base (600) being mounted to the bottom of the runner (200).

5. A casting device according to claim 3, characterized in that the casting device comprises two cold material wells (500), the two cold material wells (500) being arranged on both sides of the main runner (100), respectively.

6. Pouring device according to claim 1, wherein a plurality of said sub-runners (300) are symmetrically distributed with respect to said main runner (100).

7. Pouring device according to claim 1, characterized in that the main runner (100) communicates with the runner (200) in a circular arc transition.

8. The casting device according to claim 1, wherein the runner (200) communicates with the branch runner (300) in a circular arc transition.

9. Pouring device according to claim 1, characterized in that the height positions of a plurality of said vertical gates (400) are identical.

10. A die casting die comprising the casting device according to any one of claims 1 to 9.