A flange gravity casting mold

Abstract

This utility model provides a flange gravity casting mold, relating to the field of molds. It includes a mold body with an internal cavity containing a positioning assembly composed of multiple sets of iron cores. Cover plates are also provided on the outer sides of the cavity. This utility model uses iron core positioning stops, resulting in less deformation compared to sand core positioning. This reduces the likelihood of sand inclusions and water leakage after casting. Furthermore, it features a smaller mold closing gap, less flash on the blank, and a higher product qualification rate. The iron core mold exhibits less deformation and a longer service life. The iron core is unaffected by sand core humidity, ensuring a high product qualification rate and stable quality. Rapid demolding is achieved through four-stage iron core extraction, enabling continuous production and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to a flange gravity casting mold. Background Technology

[0002] A flange is a connecting component. Gravity casting is required in the processing and manufacturing of some flanges. Gravity casting is a basic process of metal casting, which refers to pouring molten metal into a mold cavity and relying solely on the gravity of the molten metal to complete the filling, cooling and solidification. Most existing flange gravity casting molds use upper and lower cavities and sand cores. However, the sand cores are prone to deformation for positioning, which can easily lead to sand inclusion and water leakage after casting. The large gap between the molds results in flash, a low product qualification rate, and difficulty in controlling the moisture content of the sand cores, making the product quality stability less than ideal. Utility Model Content

[0003] The purpose of this utility model is to solve the following problems existing in the prior art: the existing flange gravity casting mold is prone to deformation by sand core positioning, and sand inclusion and water leakage are easy to occur after casting. The large gap between the molds results in flash, the product qualification rate is low, and the moisture content of the sand core is difficult to control, so the product quality stability is not ideal.

[0004] To address the problems existing in the prior art, this utility model provides a flange gravity casting mold, including a mold body, an interior cavity of which a positioning assembly composed of multiple sets of iron cores is provided, and a cover plate is provided on the outer side of the cavity.

[0005] Furthermore, the iron core is divided into four parts: the first iron core, the second iron core, the third iron core, and the fourth iron core. The four iron cores are spliced ​​together to form a circular positioning assembly.

[0006] Furthermore, the first and third iron cores have the same shape, which is a large-volume semi-circular arc.

[0007] Furthermore, the second and fourth iron cores have the same shape, being small-volume semi-circular arcs.

[0008] Furthermore, metal pull rods are connected above the first iron core, the second iron core, the third iron core, and the fourth iron core.

[0009] Furthermore, the cover plate is a circular cover plate composed of two semi-circular metal parts.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention uses an iron core positioning stop, which results in less deformation compared to sand core positioning. It is less prone to sand inclusion and water leakage problems after casting. Furthermore, the mold closing gap is small, the blank flash is less, and the product qualification rate is higher. The iron core mold has less deformation and a longer service life. The iron core is not affected by the moisture of the sand core, resulting in a high product qualification rate and stable quality. The four-stage iron core extraction enables rapid demolding, continuous production, and improved production efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is a schematic diagram of a partial cavity structure of the present invention; Figure 4 This is a schematic diagram of a partial structure of the iron core of this utility model; Figure 5 This is a partial structural diagram of the cover plate of this utility model.

[0012] Reference numerals in the attached drawings: 1. Mold body; 2. Cavity; 3. Cover plate; 4. First iron core; 5. Second iron core; 6. Third iron core; 7. Fourth iron core. Detailed Implementation

[0013] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation details without creative effort are all within the protection scope of this invention.

[0014] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0015] Example 1 like Figure 1-5 As shown, a flange gravity casting mold includes a mold body 1, a cavity 2 inside the mold body 1, a positioning assembly composed of multiple sets of iron cores inside the cavity 2, and a cover plate 3 on the outside of the cavity 2. In this embodiment, the iron core is divided into four parts: the first iron core 4, the second iron core 5, the third iron core 6, and the fourth iron core 7. The four iron cores are spliced ​​together to form a circular positioning component. The first iron core 4 and the third iron core 6 have the same shape, which is a large-volume semi-circular arc. The second iron core 5 and the fourth iron core 7 have the same shape, which is a small-volume semi-circular arc. Metal pull rods are also connected to the top of the first iron core 4, the second iron core 5, the third iron core 6, and the fourth iron core 7. The cover plate 3 is a whole circular cover plate 3 composed of two semi-circular metal parts.

[0016] Working principle description: Workers use handheld metal levers to assemble and adjust the first iron core 4, second iron core 5, third iron core 6, and fourth iron core 7 within the cavity 2 of the mold body 1, forming a circle. After closing the cover plate 3, molten metal is poured in, and gravity casting is completed using a gravity-assisted device. Once casting is complete, the worker opens the cover plate 3 and uses the metal levers to separate the four iron cores, achieving rapid demolding. This device uses iron core positioning stops, resulting in less deformation compared to sand core positioning. It is less prone to sand inclusions and water leakage after casting, has a smaller mold gap, less flash on the blank, and a higher product qualification rate. The iron core mold has less deformation and a longer service life. The iron core is unaffected by sand core humidity, resulting in a high product qualification rate and stable quality. Rapid demolding via four iron core pulls enables continuous production and improves production efficiency.

[0017] 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 preferred examples and are not intended to limit the 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 flange gravity casting mold, comprising a mold body (1), characterized in that: The mold body (1) has a cavity (2) inside, and a positioning assembly composed of multiple iron cores is provided inside the cavity (2). The outer side of the cavity (2) is also provided with a cover plate (3). The iron core is divided into four parts: the first iron core (4), the second iron core (5), the third iron core (6), and the fourth iron core (7). The four iron cores are spliced ​​together to form a circular positioning component.

2. The flange gravity casting mold according to claim 1, characterized in that: The first iron core (4) and the third iron core (6) have the same shape, which is a large-volume semi-circular arc.

3. The flange gravity casting mold according to claim 2, characterized in that: The second iron core (5) and the fourth iron core (7) have the same shape, which is a small-volume semi-circular arc.

4. The flange gravity casting mold according to claim 3, characterized in that: Metal rods are also connected above the first iron core (4), the second iron core (5), the third iron core (6) and the fourth iron core (7).

5. A flange gravity casting mold according to claim 1, characterized in that: The cover plate (3) is a circular cover plate (3) composed of two semi-circular metal parts.

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