A tool for guiding smoke from a casting mold

Abstract

A fixture for guiding fumes from a casting mold includes a casting mold placed inside a tank. A first gap exists between the casting mold and the sidewall of the tank. A fumes exhaust port is located on the bottom wall of the tank corresponding to the first gap. A support member is fixedly connected to the sidewall of the tank near the opening. A cover plate is placed over the opening of the tank, with the support member resting on the bottom surface of the cover plate. A second gap exists between the support point between the support member and the cover plate and the sidewall of the tank. A third gap exists between the cover plate and the casting mold. A feed port is located in the middle of the cover plate. By housing the casting mold between the tank and the cover plate, and providing space for fumes exhaust between the casting mold, the tank, and the cover plate, and by venting the fumes generated by the molten metal from the bottom of the tank, the fumes are prevented from drifting directly from above the casting mold to the operator's location, and the fumes are facilitated for collection and treatment.

Description

Technical Field

[0001] This utility model relates to the construction technology of casting molds, specifically to a tooling for guiding the exhaust of smoke from casting molds. Background Technology

[0002] In metal casting, molten metal is poured into a casting mold. The molten metal flows smoothly through various grooves within the mold and eventually solidifies to form a metal ingot. In some production processes, operators must hold a container of molten metal above the casting mold and tilt the container to pour the molten metal into the mold. As the molten metal enters the mold and cools, it generates a large amount of fumes, which can affect the operator's health. Authorization notice number CN211411547U describes a fume absorption device for aluminum outlet casting molds, where the top cover directly covers the casting groove. During use, damage to the edges of the casting groove or the presence of residual impurities can lead to a poor seal on the top cover. Utility Model Content

[0003] To address the problems in the existing technology, this utility model provides a tooling for guiding the exhaust of fumes from the casting mold, with the aim of preventing the fumes generated by the molten metal in the casting mold from drifting upwards to the operator.

[0004] A tooling for guiding the exhaust of molten metal from a casting mold includes a casting mold with grooves evenly distributed on its upper surface for holding molten metal. All grooves are interconnected. The casting mold is placed in a tank, with a first gap between the sidewall of the tank and the casting mold. An exhaust hole is provided on the bottom wall of the tank corresponding to the first gap. The opening of the tank is higher than the casting mold. A support member is fixedly connected to the sidewall of the tank near the opening. A cover plate is provided on the opening of the tank, located inside the opening. The support member is supported on the bottom surface of the cover plate. A second gap is provided between the support point between the support member and the cover plate and the sidewall of the tank. The outer periphery of the cover plate is close to or fits against the corresponding sidewall of the tank. A third gap is provided between the cover plate and the top surface of the casting mold. A feed port is provided in the middle of the cover plate. The gap between the cover plate and the sidewall of the tank is sealed with sealing mud, allowing the fumes generated by the molten metal to be discharged from the exhaust hole after passing through the third gap and the first gap.

[0005] Furthermore, the support includes an annular platform that matches the cross-section of the tank. The second gap is left between the side wall of the tank and the annular platform. Support plates are distributed along the annular platform below it. The support plates are supported between the annular platform and the bottom surface of the tank and are fixedly connected to the annular platform, the side wall of the tank, and the bottom wall of the tank. The upper end of the annular platform is the support point.

[0006] Furthermore, through holes are distributed on the support plate.

[0007] Furthermore, there are lifting lugs distributed on the upper surface of the cover plate.

[0008] Furthermore, the exhaust vents are distributed around the bottom wall of the tank.

[0009] Furthermore, the tank body, support components, and cover plate are all made of stainless steel.

[0010] The beneficial effects of this utility model are as follows: by placing the casting mold between the tank body and the cover plate, and leaving space for venting between the casting mold and the tank body and the cover plate, the fumes generated by the molten metal are discharged from the bottom of the tank body, thereby preventing the fumes from drifting directly from above the casting mold to the operator's location, and facilitating the collection and treatment of the fumes. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the present invention;

[0012] Figure 2 This is a top view showing the positional relationship between the groove and the support in this utility model;

[0013] Figure 3 This is a top view of the cover plate in this utility model. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings. Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The directional terms such as left, center, right, top, and bottom in the embodiments of the present invention are only relative concepts or referenced to the normal use state of the product, and should not be considered restrictive.

[0015] A tooling for guiding the exhaust of smoke from casting molds, such as Figure 1As shown, the system includes a casting mold 3, with grooves 31 evenly distributed on its upper surface for holding molten metal. All grooves 31 are interconnected. The casting mold 3 is placed inside a tank 4. A first gap is left between the side wall of the tank 4 and the casting mold 3. The width of the first gap should be greater than 10cm to facilitate the installation of support members 2 on the side wall of the tank 4. Exhaust holes 41 are opened on the bottom wall of the tank 4 corresponding to the first gap, distributed around the bottom wall of the tank 4 to facilitate the discharge of fumes from the tank 4. The opening of the tank 4 is higher than the casting mold 3. Support members 2 are fixedly connected to the side wall of the tank 4 near the opening. A cover plate 1 is placed over the opening of the tank 4, located inside the opening. Support member 2 rests on the bottom surface of cover plate 1. A second gap is left between the support point between support member 2 and cover plate 1 and the side wall of tank 4. The width of the second gap should be greater than 1cm. The second gap can prevent some debris (sealing mud) from falling onto the support point, which would cause cover plate 1 to be misplaced and make it inconvenient to clean debris on the support point, thus affecting the sealing effect between cover plate 1 and the side wall of tank 4. The outer peripheral side of cover plate 1 is close to or fits against the corresponding side wall of tank 4. A third gap is left between cover plate 1 and the top surface of casting mold 3. The width of the third gap should be greater than 10cm to facilitate the flow of flue gas into the first gap. A feed inlet is opened in the middle of cover plate 1. Tank 4, support member 2 and cover plate 1 are all made of stainless steel. Figure 2 As shown, in order to facilitate opening the cover plate 1 on the tank 4 and placing the cover plate 1 into the tank 4, lifting lugs 12 are distributed on the upper surface of the cover plate 1.

[0016] In order to facilitate the installation of support members 2 inside the tank 4 and to ensure the stability of the support member 2 structure, combined with Figure 3 As shown, the support member 2 includes an annular platform 21 that matches the cross-section of the tank 4. The second gap is left between the side wall of the tank 4 and the annular platform 21. A support plate 22 is distributed along the annular platform 21 below it. The support plate 22 is supported between the annular platform 21 and the bottom surface of the tank 4 and is fixedly connected to the annular platform 21, the side wall of the tank 4 and the bottom wall of the tank 4. The upper end of the annular platform 21 is the support point. In order to avoid the support plate 2 from obstructing the flow of flue gas in the first gap, through holes 221 are distributed on the support plate 22.

[0017] In use, the casting mold 3 is placed into the tank 4, and then the cover plate 1 is placed into the tank 4 and fitted with the annular platform 21. At this time, the opening of the tank 4 is sealed by the cover plate 1. To improve the sealing effect between the cover plate 1 and the tank 4, the gap between the cover plate 1 and the side wall of the tank 4 can be sealed with sealing mud. The operator moves the container containing molten metal to the top of the cover plate 1 and pours the molten metal into the casting mold 3 through the feed port 11. Then the feed port 11 is covered, so that the fumes generated by the molten metal are discharged from the exhaust port 41 after passing through the third gap and the first gap. The molten metal is a phosphorus copper alloy molten metal. After the phosphorus copper alloy molten metal is poured into the groove 31 of the casting mold 3, some phosphorus will precipitate and generate a large amount of fumes. If the fumes are not discharged, it will cause the tooling to explode; if the fumes are discharged upward, it will affect the health of the operator. During casting, the operator needs to slowly pour the molten phosphorus copper alloy into the casting mold 3, and allow the phosphorus fumes to slowly exit the tooling after passing through the third gap, the first gap, and the fumes outlet 41. The amount of molten phosphorus copper alloy poured in is controlled according to the total capacity of all the grooves 31. Since all the grooves 31 are interconnected, the molten phosphorus copper alloy can self-level within the grooves 31. When the molten phosphorus copper alloy in the grooves 31 cools down, it will come into contact with the air and form an oxide layer. The oxide layer and the sidewalls of the grooves 31 seal the molten phosphorus copper alloy, thereby preventing excessive phosphorus precipitation. Finally, the molten phosphorus copper alloy will form a square-shaped phosphorus copper alloy ingot.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tool for guiding the smoke of a casting mold, comprising a casting mold, the upper surface of the casting mold being uniformly distributed with recesses for accommodating metal melt, all the recesses being interconnected, characterized in that: The casting mold is placed inside the tank, with a first gap between the side wall of the tank and the casting mold. A smoke vent is provided on the bottom wall of the tank corresponding to the first gap. The opening of the tank is higher than the casting mold. A support is fixedly connected to the side wall of the tank near the opening. A cover plate is placed on the opening of the tank, with the cover plate inside the opening. The support is supported on the bottom surface of the cover plate. A second gap is provided between the support point between the support and the cover plate and the side wall of the tank. The outer periphery of the cover plate is close to or fits against the corresponding side wall of the tank. A third gap is provided between the cover plate and the top surface of the casting mold. A feed port is provided in the middle of the cover plate. The gap between the cover plate and the side wall of the tank is sealed with sealing mud, so that the fumes generated by the molten metal are discharged from the smoke vent after passing through the third gap and the first gap.

2. The tooling for directing smoke from a form being poured according to claim 1, wherein: The support includes an annular platform that matches the cross-section of the tank. The second gap is left between the side wall of the tank and the annular platform. Support plates are distributed along the annular platform below it. The support plates are supported between the annular platform and the bottom surface of the tank and are fixedly connected to the annular platform, the side wall of the tank, and the bottom wall of the tank. The upper end of the annular platform is the support point.

3. The tooling for directing smoke from a form being poured according to claim 2, wherein: Through holes are distributed on the support plate.

4. The tooling for directing smoke from a form being poured according to claim 1, wherein: There are lifting lugs on the upper surface of the cover plate.

5. The tooling for directing fume evacuation of a casting mold of claim 1, wherein: The exhaust vents are distributed around the bottom wall of the tank.

6. The tooling for directing smoke from a form being poured according to claim 1, wherein: The tank, support components, and cover are all made of stainless steel.

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