ultra-low speed two-outlet pouring and distributing

Abstract

The utility model belongs to the technical field of super low speed die casting, concretely relates to a super low speed one-out two pouring arrangement. The utility model discloses a super low speed one-out two pouring arrangement includes: material cake cavity, V-shaped main runner, its lower extreme communicates with material cake cavity, and the upper end of two arms is provided with the inner gate for communicating with product cavity. The utility model discloses a super low speed one-out two pouring arrangement changes the structural design of pouring arrangement, and the pouring arrangement is'V' structure, and the size of runner is reduced relative to the symmetrical L-shaped arrangement of prior art runner, and the flowing distance of metal aluminum liquid is shorter. While reducing the dosage of aluminum liquid, the runner of metal aluminum liquid is more concentrated, and the heat protection is better. At the same time, the filling time of the whole mold can be reduced, the yield of the product is not reduced, and the production cost is saved.

Description

Technical Field

[0001] This utility model belongs to the field of ultra-low speed die casting technology, specifically relating to an ultra-low speed single-outlet two-stage gating system. Background Technology

[0002] In the field of ultra-low speed die casting, due to the special structure of the products, the molding process requires extremely low speeds and slow filling to prevent defects such as porosity and under-casting. Therefore, in ultra-low speed die casting, the gate and runner are often designed to be much thicker than in conventional high-pressure die casting. This results in a reduced yield per mold, increased primary scrap, and increased production costs.

[0003] Taking the commonly used one-out-two method as an example, the mold gating scheme usually uses a side-by-side design (such as...). Figure 1 The advantage of this design is that it facilitates process adjustments, and currently, the filling effect and product forming of this scheme are relatively good. However, the flow channel of this scheme is arranged in a symmetrical L-shape, the flow channel path is long, and the flow distance of the molten metal from the center of the cake to the product is relatively long. Therefore, the product yield of this scheme is only 24.5%, which means that there will be 75.5% scrap per mold produced, which greatly increases the production cost. Utility Model Content

[0004] The purpose of this invention is to provide an ultra-low speed single-outlet dual-gating system to solve the technical problem of high waste rate caused by the long flow path of the existing gating system and the long distance from the center of the material cake to the product.

[0005] This application provides an ultra-low speed single-outlet dual-gating grate. The ultra-low speed single-outlet dual-gating grate includes: The cake cavity; and The V-shaped main channel is connected to the cake cavity at its lower end, and the upper ends of the two arms are provided with internal gates for connecting to the product cavity.

[0006] In one embodiment of this application, the cross-sectional areas of the inner gate to the feed inlet of the cake cavity increase sequentially.

[0007] In one embodiment of this application, the area ratio of the inner gate to the feed inlet of the cake cavity is 1:1.75.

[0008] In one embodiment of this application, the two arms of the V-shaped main channel are arc-shaped.

[0009] In one embodiment of this application, the inner gate includes: The bottom horizontal surface discharge port; The side vertical discharge ports are located on both sides; and The top horizontal discharge port is located above the side vertical discharge port.

[0010] The beneficial effects of this utility model are: Unlike existing technologies, this utility model's ultra-low speed single-outlet dual-gating gating system includes: a cake cavity; a V-shaped main runner, the lower end of which is connected to the cake cavity, and inner gates for connecting to the product cavity at the upper ends of the two arms. This utility model's ultra-low speed single-outlet dual-gating system, by changing the gating structure design, adopts a "V" shape, which, compared to the symmetrical L-shaped arrangement of existing runners, reduces the runner size and shortens the flow path of the molten aluminum. This reduces the amount of molten aluminum used, while also making the molten aluminum flow more concentrated, providing better thermal protection. It also reduces the overall mold filling time without lowering product yield, thus saving production costs.

[0011] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0012] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the existing gating system; Figure 2 This is a perspective view of a preferred embodiment of the ultra-low speed single-outlet two-stage gating system of this utility model; Figure 3 This is a side view of a preferred embodiment of the ultra-low speed single-outlet two-gating system of the present invention; Figure 4 yes Figure 3 Schematic diagrams of various cross sections; Figure 5 This is a schematic diagram of the inner gate and the feed inlet of the cake chamber of an ultra-low speed one-outlet two-gating system according to a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of the inner gate of a preferred embodiment of the present invention.

[0015] In the picture: 1. Material cake cavity, 11. Material cake cavity inlet, 2. V-shaped main channel, 3. Product cavity, 4. Inner gate, 41. Bottom horizontal surface outlet, 42. Side vertical surface outlet, 43. Top horizontal surface outlet. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] This application provides an ultra-low speed single-outlet dual-gating duct, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0018] See Figure 2 and Figure 3 In one embodiment, the ultra-low speed single-outlet double-gating grate includes: a cake cavity 1; and a V-shaped main channel 2, the lower end of which is connected to the cake cavity 1, and the upper ends of the two arms are provided with an inner gate 4 for communicating with the product cavity 3.

[0019] In this embodiment, by designing the main runner from the cake cavity 1 to the inner gate 4 as a V-shape, the size of the runner is reduced compared to the symmetrical L-shaped arrangement of the runner in the prior art, resulting in a shorter flow path for the molten aluminum. This reduces the amount of molten aluminum used, while also making the runner more concentrated, providing better thermal protection and facilitating the installation of runner insulation devices. Furthermore, it can reduce the overall mold filling time without lowering product yield, thus saving production costs.

[0020] Furthermore, the two arms of the V-shaped main channel 2 have no corners, allowing the molten metal to flow more smoothly within the channel.

[0021] In this embodiment, in order to ensure the subsequent pressurization effect and minimize the weight of the flow channel, the cross-sectional area of ​​the flow channel from the inner gate 4 to the feed port 11 of the cake cavity is increased sequentially when designing the flow channel, and the ratio of the cross-sectional area does not exceed 1.2.

[0022] For details, see Figure 3 and Figure 4Optionally, the ratio of the cross-sectional area of ​​the ingate SECTION AA to that of the runner SECTION BB is approximately 1:1.2; the ratio of the cross-sectional area of ​​the runner SECTION BB to that of the runner SECTION CC is approximately 1:1.2; the ratio of the cross-sectional area of ​​the runner SECTION CC to that of the runner SECTION DD is approximately 1:1.2; and the ratio of the cross-sectional area of ​​the runner SECTION DD to that of the cake chamber inlet 11 is approximately 1:1.1.

[0023] See Figure 5 Optionally, the area of ​​the ingate 4 (blue part in the figure) is 1:1.75 to the area of ​​the feed inlet 11 of the molten aluminum cake cavity (red part in the figure). This results in a slow flow rate at the ingate 4 during the filling process, allowing the molten aluminum to fill the mold cavity smoothly, reducing curling and thus reducing porosity in the product.

[0024] Optionally, the two arms of the V-shaped main channel 2 are arc-shaped, which can make the flow of molten metal smoother and reduce the occurrence of air entrapment.

[0025] See Figure 6 The ingate 4 includes: a bottom horizontal surface outlet 41; side vertical surface outlets 42 located on both sides; and a top horizontal surface outlet 43 located above the side vertical surface outlets 42. In this embodiment, the design of the ingate 4 can be well adapted to the filling of the product cavity 3. With the help of the V-shaped main channel 2, the molten aluminum will flow from both sides of the main channel, preferentially filling the side of the product away from the center, and then gradually filling inward.

[0026] In one application scenario, the ultra-low speed single-outlet dual-gating system of this invention increases the product yield to 29.5%, saving 631g of material per mold. Simultaneously, the new runner design offers better insulation, less temperature loss, improved subsequent product pressurization, and better product porosity, resulting in a corresponding increase in yield.

[0027] It should be noted that all the devices (parts whose specific structures are not specified) selected in this application are general standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0028] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification.

Claims

1. An ultra-low speed one-out-two pouring distributor, characterized by, include: The cake cavity (1); and V-shaped main channel (2), the lower end of which is connected to the cake cavity (1), and the upper ends of the two arms are provided with an inner gate (4) for connecting with the product cavity (3). The two arms of the V-shaped main channel (2) are arc-shaped; The inner gate (4) includes: Bottom horizontal surface discharge port (41); The side vertical discharge ports (42) are located on both sides. as well as The top horizontal surface discharge port (43) is located above the side vertical surface discharge port (42).

2. The ultra-low speed single-outlet dual-gating grate according to claim 1, characterized in that, The cross-sectional area of ​​the flow channel from the inner gate (4) to the feed inlet (11) of the cake cavity increases sequentially.

3. The ultra-low speed two-for-one ladle of claim 1 wherein, The ratio of the area of ​​the inner gate (4) to the area of ​​the cake cavity inlet (11) is 1:1.75.

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