Pouring system

Abstract

The utility model provides a pouring system, which belongs to the technical field of production and casting, and comprises a circulation part, the circulation part comprises a first circulation cavity and a second circulation cavity which are communicated with each other, the first circulation cavity is positioned above the second circulation cavity, and in the vertical direction, the bottom of the first circulation cavity is positioned in the same horizontal direction; the top of the first circulation cavity gradually inclines downwards from the middle position to the two sides, the first circulation cavity communicates with the first straight channel section, a flow dividing part is further arranged in the first circulation cavity and located below the first straight channel section, the number of the second circulation cavities is two, and the two second circulation cavities are symmetrically arranged on the two sides of the flow dividing part. The second flowing cavity is communicated with the ingate; the device has the advantages that the flow of the middle position of the first circulation cavity is large, the height position of the first circulation cavity is large, the flow of molten iron is decreased along with circulation of the molten iron towards the two sides, and therefore the height of the first circulation cavity is decreased, and the whole first circulation cavity is filled with the molten iron as soon as possible, and then the molten iron makes full contact with the filtering part.

Description

Technical Field

[0001] The utility model belongs to the technical field of production casting, and particularly relates to a gating system. Background Art

[0002] Casting is a process of melting metal into a liquid meeting certain requirements and pouring it into a mold cavity, and obtaining a casting with a predetermined shape, size and performance after cooling and solidifying and finishing treatment. The gating system is a channel opened in the mold for introducing liquid metal into the mold cavity.

[0003] During the manufacturing process, when pouring the molten metal into the mold cavity of the sand mold through the gating system, it is necessary to filter the molten metal to form high-quality castings. Generally, a filtering cavity is arranged on the sprue, and then a filtering sheet is arranged in the filtering cavity. The molten iron flows into the mold cavity after passing through the filtering sheet. However, when flowing through the sprue to the filtering cavity, as the molten iron diffuses towards both ends of the filtering cavity, the flow rate of the molten iron decreases, so that the molten iron cannot fully contact the filtering sheet, the filtering sheet cannot be fully utilized, and the filtering efficiency is not high. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a gating system that increases the utilization efficiency of the filtering sheet in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A gating system, comprising:

[0006] A sprue, which includes a first straight section and a second straight section that are connected and communicated;

[0007] An ingate, which is connected and communicated with the sprue, and the ingate is used to be connected and communicated with the mold cavity;

[0008] A flow conversion part, which includes a first flow cavity and a second flow cavity that are connected and communicated with each other. The first flow cavity is located above the second flow cavity. In the vertical direction, the bottom of the first flow cavity is located in the same horizontal direction. The top of the first flow cavity gradually slopes downward from the middle position to both sides. The first flow cavity is connected and communicated with the first straight section. A flow splitting part is further arranged in the first flow cavity. The flow splitting part is located below the first straight section. The number of the second flow cavities is two, and the two second flow cavities are symmetrically arranged on both sides of the flow splitting part. The second flow cavity is connected and communicated with the ingate;

[0009] A filtering member, which includes a filtering cavity. The filtering cavity is connected and communicated between the first flow cavity and the second flow cavity, and a filtering part is arranged in the filtering cavity.

[0010] In the above-mentioned gating system, along the extending direction of the first flow cavity from the middle to both sides, the inclination angle between the upper end of the first flow cavity and the horizontal plane gradually decreases.

[0011] In the above-mentioned gating system, the number of the filtering cavities is two, and the two filtering cavities are respectively located above the corresponding second flow cavities.

[0012] In the above-mentioned gating system, the vertical cross-sectional shape of the filtering cavity is an isosceles trapezoid, and the length of the upper base of the isosceles trapezoid is greater than the length of the lower base.

[0013] In the above-mentioned gating system, the vertical cross-sectional shape of the second flow cavity is an isosceles trapezoid, and the length of the upper base of the isosceles trapezoid is greater than the length of the lower base.

[0014] In the above-mentioned gating system, the flow splitting part includes a flow splitting brick, the flow splitting brick is located below the first straight channel section, and the top of the flow splitting brick is gradually inclined downward from the middle position to both sides.

[0015] In the above-mentioned gating system, the top end face of the flow splitting brick is an arc surface.

[0016] In the above-mentioned gating system, the number of the inner gates is multiple, and all the inner gates are used to communicate with the cavity, and the multiple inner gates are divided into two groups, and the two groups of inner gates are symmetrically arranged on both sides of the first sprue.

[0017] In the above-mentioned gating system, in the vertical direction, the filtering part is located at the middle position of the cavity.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: The top of the first flow cavity gradually inclines downward from the middle position to both sides, that is, while extending to both sides, the chamber height of the first flow cavity gradually decreases. Then, with the pouring of molten iron, the flow rate at the middle position of the first flow cavity is larger, so its height position is higher. And as the molten iron flows to both sides, the flow rate of the molten iron becomes smaller, so the set height of the first flow cavity becomes lower, enabling the molten iron to quickly fill the entire chamber of the first flow cavity, and then fully contact with the filtering part, filtering the molten iron, making full use of the filtering part, and increasing the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is one of the plane structural schematic diagrams of the present utility model;

[0021] Figure 3It is the second planar structure schematic diagram of the present utility model;

[0022] Figure 4 It is the third planar structure schematic diagram of the present utility model.

[0023] In the figure, there are sprue 100; first straight section 101; second straight section 102; pouring cup 103; first flow cavity 200; second flow cavity 201; flow dividing part 202; filtering cavity 203; filtering part 204; ingate 300; cavity 400. Detailed implementation manners

[0024] The following are specific embodiments of the present utility model and in combination with the attached drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0026] As Figures 1 - 4 shown, a gating system includes:

[0027] Sprue 100, which includes a connected first straight section 101 and a second straight section 102;

[0028] Ingate 300, which is connected to the sprue 100 and is used to be connected to the cavity 400;

[0029] Flow part, which includes a connected first flow cavity 200 and a second flow cavity 201. The first flow cavity 200 is located above the second flow cavity 201. In the vertical direction, the bottoms of the first flow cavity 200 are in the same horizontal direction. The top of the first flow cavity 200 gradually slopes downward from the middle position to both sides. The first flow cavity 200 is connected to the first straight section 101. A flow dividing part 202 is also arranged in the first flow cavity 200. The flow dividing part 202 is located below the first straight section 101. The number of the second flow cavities 201 is two. The two second flow cavities 201 are symmetrically arranged on both sides of the flow dividing part 202. The second flow cavity 201 is connected to the ingate 300;

[0030] Filtering member, which includes a filtering cavity 203. The filtering cavity 203 is connected and arranged between the first flow cavity 200 and the second flow cavity 201, and a filtering part is arranged in the filtering cavity 203.

[0031] In this embodiment, the top of the first flow cavity 200 gradually slopes downward from the middle position to both sides. That is, while extending towards both sides, the chamber height of the first flow cavity 200 gradually decreases. Then, as the molten iron is poured in, the flow rate at the middle position of the first flow cavity 200 is larger, so its height position is higher. And as the molten iron flows towards both sides, the flow rate of the molten iron becomes smaller. Therefore, the height of the first flow cavity 200 is set to be lower, so that the molten iron can quickly fill the entire chamber of the first flow cavity 200, and then make full contact with the filtering part to filter the molten iron, make full use of the filtering part, and increase the filtering efficiency.

[0032] It is worth mentioning that the filtering part can be an existing filter sheet, and the filter sheet is placed in the filtering cavity 203.

[0033] Further preferably, along the extension direction of the first flow cavity 200 from the middle to both sides, the inclination angle between the upper end of the first flow cavity 200 and the horizontal plane gradually decreases, that is, the inclination change trend of the top of the first flow cavity 200 gradually becomes gentle.

[0034] It is worth mentioning that the bottom end face of the first flow cavity 200 is in the horizontal direction.

[0035] Further preferably, the number of the filtering cavities 203 is two, and the two filtering cavities 203 are respectively located above the corresponding second flow cavities 201.

[0036] In this embodiment, by providing two filtering cavities 203, when one of the filtering cavities 203 is blocked, the molten iron can still flow through the other filtering cavity 203.

[0037] Further preferably, the vertical cross-sectional shape of the filtering cavity 203 is an isosceles trapezoid, and the length of the upper base of the isosceles trapezoid is greater than the length of the lower base.

[0038] In this embodiment, for the setting of the first flow cavity 200, it can be set on the upper box. After placing the filter sheet in the filtering cavity 203, the boxes are then combined, and the first flow cavity 200 can be located above the filtering cavity 203; alternatively, on the molding sand block, a movable runner core can be provided, the first flow cavity 200 is located on the runner core, and after placing the filter sheet in the filtering cavity 203, the runner core is connected to the molding sand block; and setting the vertical cross-sectional shape of the filtering cavity 203 as an isosceles trapezoid makes the upper end of the filtering cavity 203 large and the lower end small, preventing the filter sheet from rubbing against the side wall of the filtering cavity 203 when placing the filter sheet and dropping sand and gravel.

[0039] Further preferably, the vertical cross-sectional shape of the second flow cavity 201 is an isosceles trapezoid, and the length of the upper base of the isosceles trapezoid is greater than that of the lower base. The second flow cavity 201 is used to receive the filtered molten iron, with the upper end being large and the lower end being small, so that the molten iron can fill the second flow cavity 201 and then fill the ingate 300.

[0040] Preferably, the flow splitting part 202 includes a flow splitting brick, which is located below the first straight section 101, and the top of the flow splitting brick is gradually inclined downward from the middle position to both sides.

[0041] Further preferably, the top end face of the flow splitting brick is an arc surface.

[0042] In this embodiment, in order to prevent the molten iron flowing out of the first straight pipe section from impacting the sand block and causing damage to the sand block, a flow splitting brick is provided at the bottom of the first straight pipe section. The flow splitting brick is made of refractory material, and the top end face of the flow splitting brick is an arc surface that gradually inclines downward from the middle position to both sides, guiding the flow splitting of the molten iron so that it flows into the two side filter cavities 203.

[0043] Further preferably, the number of ingates 300 is multiple, and all the ingates 300 are used to communicate with the cavity 400. The multiple ingates 300 are divided into two groups, and the two groups of ingates 300 are symmetrically arranged on both sides of the first sprue 100.

[0044] Preferably, in the vertical direction, the filtering part is located at the middle position of the cavity 400.

[0045] In this embodiment, by moving the filtering part upward, the impact force of the molten iron on the filter sheet is reduced, and the filter sheet is prevented from breaking.

[0046] It is worth mentioning that the top of the first straight section 101 is connected to the pouring cup 103, and the bottom of the pouring cup 103 is communicated with the first straight section 101 through a ceramic tube.

[0047] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. Terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0048] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0049] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar ways to substitute, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A pouring system, characterized in that: include: A sprue, comprising a first straight section and a second straight section connected to each other; An ingrate, which is connected to the sprue, and the ingrate is used to communicate with the cavity; A flow transfer portion, comprising a first flow transfer chamber and a second flow transfer chamber which are interconnected, wherein the first flow transfer chamber is located above the second flow transfer chamber, and in the vertical direction, the bottom of the first flow transfer chamber is located in the same horizontal direction, and the top of the first flow transfer chamber gradually slopes downward from the middle position to both sides, and the first flow transfer chamber is connected to the first straight section, and a flow diversion portion is further arranged in the first flow transfer chamber, and the flow diversion portion is located below the first straight section, and the number of the second flow transfer chambers is two, and the two second flow transfer chambers are symmetrically arranged on both sides of the flow diversion portion, and the second flow transfer chamber is connected to the ingrate; The filter element comprises a filter cavity, wherein the filter cavity is arranged between the first circulation cavity and the second circulation cavity, and a filter part is arranged in the filter cavity.

2. A pouring system according to claim 1, characterized in that: Along the extension direction of the first circulation chamber from the middle to both sides, the inclination angle between the upper end of the first circulation chamber and the horizontal plane gradually decreases.

3. A pouring system according to claim 1, characterized in that: The number of the filter chambers is two, and the two filter chambers are respectively located above the corresponding second circulation chambers.

4. A pouring system according to claim 1 or 3, characterized in that: The vertical cross-section of the filter cavity is an isosceles trapezoid, and the length of the upper base of the isosceles trapezoid is greater than the length of the lower base.

5. A pouring system according to claim 1, characterized in that: The vertical cross-section of the second circulation chamber is an isosceles trapezoid, and the length of the upper base of the isosceles trapezoid is greater than the length of the lower base.

6. A pouring system according to claim 1, characterized in that: The diverter portion includes a diverter brick, which is located below the first straight section, and the top of the diverter brick is gradually inclined downward from the middle position to both sides.

7. A pouring system according to claim 6, characterized in that: The top end surface of the diverter brick is an arc-shaped surface.

8. A pouring system according to claim 1, characterized in that: There are multiple ingates, and all of the ingates are used to communicate with the cavity. The multiple ingates are divided into two groups, and the two groups of ingates are symmetrically arranged on both sides of the first straight runner.

9. A pouring system according to claim 1, characterized in that: In the vertical direction, the filter portion is located in the middle of the cavity.

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