Rotary deslagging pouring gate system

Abstract

The utility model relates to the technical field of pouring gate systems, and particularly discloses a rotary deslagging pouring gate system, which comprises a straight pouring gate, a transverse pouring gate, an inner pouring gate and a rotary slag collecting mechanism, and is used for pouring molten iron for a cavity of a die casting machine, and a pouring gate communicated with the pouring gate system is arranged on the die casting machine. The sprue, the cross gate and the ingate are sequentially arranged between the sprue and the cavity, that is, molten iron enters from the sprue and then sequentially passes through the sprue, the cross gate and the ingate to be poured into the cavity, pouring is completed, and in the flowing process of the molten iron, in order to clean residues in the molten iron, the rotary slag collecting mechanism is arranged on the cross gate, and the rotary slag collecting mechanism is arranged on the ingate. When the molten iron passes through the rotary slag collecting mechanism, the rotary slag collecting mechanism can drive the molten iron to conduct centrifugal movement, due to the fact that the density of residues is low, the residues can automatically float upwards, the purpose of being separated from the molten iron is achieved, the content of the molten iron residues entering a cavity is small, and the casting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pouring systems, in particular to a rotary slag removal pouring channel system. Background Art

[0002] The die casting is formed by pouring into the cavity of the die casting machine through the runner system, and then cooling and solidifying in the cavity. However, a large number of non-metallic inclusions will be generated in the molten iron during the smelting, spheroidizing and inoculation process. The primary inclusions are very small. In the subsequent standing, transportation, pouring, filling and solidification processes, they grow larger, float or sink to become the core of graphite precipitation. Usually, the nucleation materials are graphite, sulfide, oxide, carbide, nitride, metal compound, etc., and those that cannot become nuclei will appear in the form of slag inclusions in the runner, the upper plane of the casting, the back of the boss, the corner of the wall thickness, etc. The slag inclusion defect will deteriorate the mechanical properties of the casting, the stress is concentrated at the slag inclusion position, and crack propagation or even fracture accidents may occur during the service life of the workpiece. It is necessary to separate the slag inclusions from the molten iron during the pouring process.

[0003] In the prior art, a conventional pouring system consists of a pouring cup, a sprue, a cross runner, a filter, and an inner runner. In actual production, the filter can remove most of the slag inclusions in the molten iron, but some slag will gather on the processing surface or key areas of the casting. This is mainly because there is a gap between the filter and the filter groove. Some slag in the molten iron will enter the mold cavity through the gap. Some slag will not adhere to the complex pore wall of the filter after entering the filter, but will directly pass through the filter. Some slag is smaller than the filter pores and will also pass through the filter into the mold cavity. After solidification, these slag inclusions will remain in the casting, and the filtering effect is average. Summary of the invention

[0004] The utility model is made in consideration of the above-mentioned problems. The purpose of the utility model is to provide a rotary slag removal runner system, which can drive the molten iron to perform centrifugal motion through a rotary slag collecting mechanism, and separate the residue from the molten iron, thereby reducing the residue of the casting.

[0005] To achieve the above-mentioned purpose, the utility model provides a rotary slag removal runner system, which is used for pouring molten iron into the cavity of a die-casting machine, wherein the die-casting machine is provided with a pouring gate, and the runner system comprises a straight runner, a horizontal runner, an inner runner and a rotary slag collection mechanism, wherein the straight runner, the horizontal runner and the inner runner are sequentially arranged between the pouring gate and the cavity, and the rotary slag collection mechanism is located on the horizontal runner;

[0006] When the molten iron passes through the rotating slag collecting mechanism, the rotating slag collecting mechanism can drive the molten iron to perform centrifugal motion so as to separate the residue in the molten iron from the molten iron.

[0007] According to the above-mentioned rotary slag removal runner system, the rotary slag collecting mechanism includes a four-way pipe, and when the residue in the molten iron is separated from the molten iron, the residue can be suspended to the upper part of the four-way pipe.

[0008] According to the above-mentioned rotary slag removal runner system, a liquid inlet and a liquid outlet are provided on the side wall of the lower part of the four-way pipe, the cross runner is connected to the four-way pipe through the liquid inlet and the liquid outlet, and the horizontal height of the liquid inlet is lower than the horizontal height of the liquid outlet.

[0009] According to the above-mentioned rotary slag removal runner system, the straight runner includes a first straight pipe, a first reducer, a second straight pipe, a second reducer and a third straight pipe, the first reducer is used to connect the first straight pipe with the second straight pipe, the second reducer is used to connect the second straight pipe with the third straight pipe, and one end of the third straight pipe is connected to one end of the cross runner.

[0010] According to the above-mentioned rotary slag removal runner system, the diameter of the first straight tube is larger than the diameter of the second straight tube, and the diameter of the second straight tube is larger than the diameter of the third straight tube.

[0011] According to the above-mentioned rotary slag removal runner system, a first buffer portion is provided on the cross runner, the first buffer portion is generally n-shaped, and a second buffer portion bent upward is provided at the tail end of the inner runner.

[0012] According to the above-mentioned rotary slag removal runner system, a filter is provided on the ingrowth, and the filter is fixed in the ingrowth.

[0013] The utility model has the following beneficial effects:

[0014] 1. The rotating slag collecting mechanism can drive the molten iron to rotate centrifugally. Since the residue density is small, it will be suspended on the upper part of the molten iron, thereby separating the residue from the molten iron, which can effectively reduce the residue in the casting and improve the quality of the casting;

[0015] 2. A filter is also provided on the inner runner, which will perform secondary filtration on the molten iron passing through, further reducing the content of residue in the molten iron and improving the quality of castings;

[0016] 3. The diameter of the sprue is getting smaller and smaller, which can control the pouring flow rate. At the same time, the first buffer part of the cross runner and the second buffer part of the inner runner can reduce the pouring speed and the cavity pressure of the die-casting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment;.

[0018] In the figure:

[0019] 1. Sprue; 11. First straight pipe; 12. First reducer; 13. Second straight pipe; 14. Second reducer; 15. Third straight pipe; 2. Cross runner; 21. First buffer; 3. Ingate; 31. Second buffer; 32. Filter; 4. Rotating slag collecting mechanism. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] like Figure 1 As shown, a rotary slag removal runner system comprises a sprue 1, a cross runner 2, an ingode 3 and a rotary slag collecting mechanism 4, which is used for pouring molten iron into the cavity of a die-casting machine. A pouring gate connected to the runner system is provided on the die-casting machine, and the sprue 1, the cross runner 2 and the ingode 3 are sequentially arranged between the pouring gate and the cavity, that is, after the molten iron enters from the pouring gate, it passes through the sprue 1, the cross runner 2 and the ingode 3 in sequence and is poured into the cavity to complete the pouring. During the flow of molten iron, in order to clean the residue in the molten iron, the rotary slag collecting mechanism 4 is arranged on the cross runner 2. When the molten iron passes through the rotary slag collecting mechanism 4, the rotary slag collecting mechanism 4 can drive the molten iron to perform centrifugal motion. Due to the low density of the residue, the residue will automatically float up to achieve the purpose of separation from the molten iron, thereby reducing the residue content in the molten iron entering the cavity and improving the quality of the casting.

[0022] Specifically, the rotating slag collecting mechanism 4 includes a four-way pipe. When the residue in the molten iron is separated from the molten iron, the residue can be suspended to the upper part of the four-way pipe. Due to its density, the residue floats up and floats to the upper part of the four-way pipe. After cooling, it can be bonded to the inner wall of the upper part of the four-way pipe. At the same time, a liquid inlet and a liquid outlet are provided on the side wall of the lower part of the four-way pipe. The cross runner 2 is connected to the four-way pipe through the liquid inlet and the liquid outlet. The horizontal height of the liquid inlet is lower than the horizontal height of the liquid outlet. The height misalignment of the liquid inlet and the liquid outlet can reduce the flow rate and avoid impacting the cavity at an excessively fast speed.

[0023] Specifically, the sprue 1 includes a first straight pipe 11, a first reducer 12, a second straight pipe 13, a second reducer 14 and a third straight pipe 15. The first reducer 12 is used to connect the first straight pipe 11 and the second straight pipe 13, the second reducer 14 is used to connect the second straight pipe 13 and the third straight pipe 15, one end of the third straight pipe 15 is connected to one end of the cross runner 2, and the diameter of the first straight pipe 11 is greater than the diameter of the second straight pipe 13, and the diameter of the second straight pipe 13 is greater than the diameter of the third straight pipe 15, that is, the diameter of the sprue 1 gradually decreases, and the flow rate of the pouring liquid also decreases, which is conducive to controlling the flow rate.

[0024] In order to reduce the impact on the mold cavity, a first buffer portion 21 is provided on the cross runner 2. The first buffer portion 21 is generally n-shaped, and a second buffer portion 31 bent upward is provided at the tail end of the ingrowth 3. The first buffer portion 21 and the second buffer portion 31 are used to slow down the flow rate of the molten iron, thereby reducing the impact on the mold cavity.

[0025] In order to ensure more complete separation of the residue, a filter 32 is provided on the ingrowth 3, and the filter 32 is fixed in the ingrowth 3. After the molten iron passes through the rotating slag collecting mechanism 4 and is separated from most of the residue, it is filtered through the filter 32 to further reduce the residue content in the molten iron and further improve the quality of the casting. Moreover, since the rotating slag collecting mechanism 4 separates most of the residue, the remaining lower residue has less impact on the filter 32, thereby avoiding damage to the filter 32 due to impact.

[0026] The technical solution of the utility model is described in detail above in conjunction with the accompanying drawings, and the described embodiments are used to help understand the idea of ​​the utility model. The specific embodiments described herein are merely examples of the spirit of the utility model. A person skilled in the art of the utility model may make various modifications or supplements to the described specific embodiments or replace them in a similar manner, but this will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A rotary slag removal runner system for pouring molten iron into a die-casting machine cavity, wherein the die-casting machine is provided with a pouring gate, characterized in that: The runner system includes a sprue, a cross runner, an entgate and a rotating slag collecting mechanism, wherein the sprue, the cross runner and the entgate are sequentially arranged between the inlet and the cavity, and the rotating slag collecting mechanism is located on the cross runner; When the molten iron passes through the rotating slag collecting mechanism, the rotating slag collecting mechanism can drive the molten iron to perform centrifugal motion so as to separate the residue in the molten iron from the molten iron.

2. A rotary slag removal runner system according to claim 1, characterized in that: The rotating slag collecting mechanism comprises a four-way pipe, and when the residue in the molten iron is separated from the molten iron, the residue can be suspended to the upper part of the four-way pipe.

3. A rotary slag removal runner system according to claim 2, characterized in that: A liquid inlet and a liquid outlet are provided on the side wall of the lower part of the four-way pipe, and the cross runner is connected with the four-way pipe through the liquid inlet and the liquid outlet. The level of the liquid inlet is lower than the level of the liquid outlet.

4. A rotary slag removal runner system according to claim 1, characterized in that: The straight runner includes a first straight pipe, a first reducer, a second straight pipe, a second reducer and a third straight pipe. The first reducer is used to connect the first straight pipe and the second straight pipe, the second reducer is used to connect the second straight pipe and the third straight pipe, and one end of the third straight pipe is connected to one end of the cross runner.

5. A rotary slag removal runner system according to claim 4, characterized in that: The diameter of the first straight tube is greater than the diameter of the second straight tube, and the diameter of the second straight tube is greater than the diameter of the third straight tube.

6. A rotary slag removal runner system according to claim 1, characterized in that: The cross runner is provided with a first buffer portion, which is in an n-shape as a whole, and the tail end of the inner runner is provided with a second buffer portion bent upward.

7. A rotary slag removal runner system according to claim 1 or 6, characterized in that: The ingrate is provided with a filter, and the filter is fixed in the ingrate.

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