A mold for setting a hot core chill

Abstract

The utility model relates to foundry technology and mould design technical field discloses a mould of hot core cold iron is placed, its characterized in that, include: static mould, movable mould, cold iron, wherein cold iron sets up on static mould, and the working face of cold iron is protruding in static mould's mould cavity to face movable mould, the position of static mould in -corresponding to cold iron designs to have the placement groove, the depth of placement groove is less than the length of cold iron in its installation direction, the utility model provides a kind of mould of hot core cold iron is placed, by installing cold iron in static mould and designing 1.5mm sand layer, sand core solidifies after completely wrapping cold iron, avoid the sand shot not real of cold iron exposure, air hole defect, the original movable mould installation needs manual repair cold iron position, thickness is difficult to control, present static mould fixed cold iron does not need to repair, thoroughly solve the problem of thin wall due to improper repair.

Description

Technical Field

[0001] This utility model relates to the field of casting technology and mold design technology, and in particular to a mold for placing a hot core chill. Background Technology

[0002] Existing technologies such as Figure 7 As shown, the chill has three protrusions that contact the moving mold. This structure causes the three protrusions of the chill to be exposed on the surface of the sand core. Not only is the exposed area of ​​the chill too large, but it also easily leads to the phenomenon of sand not being emitted. At the same time, there is a defect of air porosity in the chill. Operators need to repair this part, but the repair is difficult and the thickness is not easy to control, which poses a risk of the wall thickness being too thin. Repair paste must be used to fill and smooth the exposed part. Utility Model Content

[0003] The purpose of this utility model is to provide a mold for placing a hot core chill, so as to solve the problem of chill porosity defects and the need for manual repair.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mold for placing a hot core chill, characterized in that it includes: a stationary mold, a moving mold, and a chill, wherein the chill is disposed on the stationary mold, and the chill protrudes from the cavity of the stationary mold on the working surface facing the moving mold.

[0005] Optionally, a mounting groove is designed within the stationary mold corresponding to the position of the chill, and the depth of the mounting groove is less than the length of the chill in its installation direction.

[0006] Optionally, a gap is reserved between the protruding working surface of the chill and the corresponding surface of the moving mold.

[0007] Optionally, the outer wall of the top of the mold is provided with a circular hole for placing the heating rod.

[0008] Optionally, the two opposite sidewalls along the length of the mold are provided with small holes for placing ejector pins.

[0009] Optionally, four sand injection ports are provided on one side of the outer sidewall of the mold.

[0010] Optionally, a strong magnet is installed on the surface of the chill facing away from the cavity to generate magnetic attraction to attract and fix the chill to the corresponding mounting surface of the stationary mold.

[0011] This invention installs chills onto a stationary mold and designs a 1.5mm sand coating layer. After the sand core solidifies, it completely encapsulates the chills, preventing incomplete sand injection and porosity defects caused by exposed chills. Previously, installing the moving mold required manual redrawing of the chill position, making it difficult to control the thickness. Now, fixing the chills on the stationary mold eliminates the need for redrawing, completely solving the problem of thin walls caused by improper redrawing. The redrawing process for the chill position is eliminated, reducing the labor intensity for employees. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the external structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the static mold structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the moving mold structure of this utility model.

[0015] Figure 4 This is a top view of the moving model of this utility model.

[0016] Figure 5 AA is a cross-sectional view of the moving model of this utility model.

[0017] Figure 6 This is a partially enlarged view (B) of the gap between the chill and the moving mold of this utility model.

[0018] Figure 7 This is a schematic diagram of the moving mold and chills in the prior art.

[0019] In the diagram: 1. Static mold; 2. Moving mold; 3. Chill; 4. Circular hole; 5. Small hole; 6. Shot nozzle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Existing technologies such as Figure 7 As shown, the chill has three protrusions that contact the moving mold, and a strong magnet is placed on the moving mold to attract and fix the chill to ensure its stability. However, this structure causes the three protrusions of the chill to be exposed on the surface of the sand core. Not only is the exposed area of ​​the chill too large, but it is also easy to cause the phenomenon of sand emission not being realized. At the same time, there is a defect of air porosity in the chill. Operators need to repair this part, but the repair is difficult and the thickness is not easy to control, and there is a risk of the wall thickness being too thin. Repair paste must be used to fill and smooth the exposed part.

[0022] This utility model provides, for example Figures 1 to 6 The technical solution shown is a mold for placing a hot core chill, characterized in that it includes: a stationary mold 1, a moving mold 2, and a chill 3, wherein the chill 3 is disposed on the stationary mold 1, and the chill 3 protrudes from the cavity of the stationary mold 1 on the working surface facing the moving mold 2.

[0023] The stationary mold 1 has a mounting groove designed corresponding to the position of the chill 3, and the depth of the mounting groove is less than the length of the chill 3 in its installation direction.

[0024] During the casting mold assembly process, the chill 3 is precisely placed at a specific position on the stationary mold 1. In order to achieve rapid positioning and stable fixation, the chill 3 is embedded and adsorbed by a strong magnet to ensure that the chill 3 and the mounting surface of the stationary mold 1 always remain in close contact, effectively avoiding the displacement phenomenon that may occur when the chill 3 is fixed on the moving mold 2 in the prior art.

[0025] A gap is reserved between the protruding working surface of the chill 3 and the corresponding surface of the moving mold 2.

[0026] A gap is reserved between the protruding working surface of the chill 3 and the corresponding surface of the moving mold 2. The size of the gap is set to 1.5mm. The gap is set to ensure that the sand core can fully fill and wrap the working surface of the chill 3 during the core making process. When the sand is injected and solidified to form a sand core, the sand core will completely cover the chill 3, so that it will not be exposed on the surface of the sand core, thereby avoiding defects or quality problems caused by the exposure of the chill 3 in subsequent casting operations.

[0027] The mold has a circular hole 4 on its top outer wall for placing a heating rod.

[0028] The mold has two opposite sidewalls along its length with small holes 5 for placing ejector pins.

[0029] The mold has four sand-shooting ports 6 on one side of its outer sidewall.

[0030] A strong magnet is installed on the surface of the chill 3 facing away from the cavity to generate magnetic attraction force to attract and fix the chill 3 to the corresponding mounting surface of the stationary mold 1.

[0031] The top outer wall of the mold has circular holes 4 with a moderate diameter for securely placing the heating rod to achieve uniform heat conduction during operation, suitable for the hot core box; each of the two opposite sidewalls along the length of the mold has multiple small holes 5 for precisely placing the ejector rod to provide stable support and prevent core box displacement; four sand injection ports 6 are provided on one side of the outer sidewall of the mold; these sand injection ports 6 are used to efficiently inject sand to ensure uniform and dense filling inside the mold.

[0032] The chill 3 is embedded in the mounting slot of the stationary mold 1 and fixed to the surface of the stationary mold 1 facing away from the cavity by strong magnetic adsorption, ensuring that the chill 3 and the mounting surface of the stationary mold 1 are tightly fitted to avoid displacement. When the mold is closed, the stationary mold 1 and the moving mold 2 are aligned, and a 1.5mm gap is reserved between the protruding working surface of the chill 3 and the corresponding surface of the moving mold 2 to provide space for the sand core coating layer. A heating rod is inserted into the circular hole 4 on the top outer wall of the stationary mold 1 to uniformly heat the core box and improve the sand curing efficiency. Sand is injected into the mold cavity through the four sand injection ports 6 on the side wall of the mold. The sand fills the 1.5mm gap between the chill 3 and the moving mold 2 and wraps the working surface of the chill 3 to form a 1.5mm thick sand coating layer. The sand solidifies under heating conditions to form a sand core that wraps the chill 3. The chill 3 is completely covered by the sand core with no exposed parts. An ejector rod is inserted through the ejector rod hole on the side wall of the mold to eject the solidified sand core, completing the demolding.

[0033] This invention installs the chill 3 onto the stationary mold 1 and designs a 1.5mm sand coating layer. After the sand core solidifies, it completely encapsulates the chill 3, avoiding incomplete sand injection and porosity defects caused by exposed chill 3. The original installation of the moving mold 2 required manual redrawing of the position of the chill 3, making it difficult to control the thickness. Now, the stationary mold 1 fixes the chill 3 without redrawing, completely solving the problem of thin walls caused by improper redrawing. The redrawing process of the position of the chill 3 is eliminated, and employees do not need to perform complicated redrawing operations, reducing the intensity of manual labor.

[0034] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0035] The specific embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A mold for placing a hot core chill, characterized in that, include: The components are a stationary mold (1), a moving mold (2), and a chill (3), wherein the chill (3) is disposed on the stationary mold (1), and the working surface of the chill (3) facing the moving mold (2) protrudes from the cavity of the stationary mold (1).

2. The mold for placing a hot core chill according to claim 1, characterized in that: The stationary mold (1) has a mounting groove designed in the position corresponding to the chill (3), and the depth of the mounting groove is less than the length of the chill (3) in its installation direction.

3. The mold for placing a hot core chill according to claim 2, characterized in that: A gap is reserved between the protruding working surface of the chill (3) and the corresponding surface of the moving mold (2).

4. The mold for placing a hot core chill according to claim 3, characterized in that: The mold has a circular hole (4) on the top outer wall for placing the heating rod.

5. The mold for placing a hot core chill according to claim 4, characterized in that: The mold has two opposite sidewalls along its length with small holes (5) for placing push rods.

6. The mold for placing a hot core chill according to claim 5, characterized in that: Four sand-shooting ports (6) are provided on one side of the outer sidewall of the mold.

7. The mold for placing a hot core chill according to claim 1, characterized in that: A strong magnet is installed on the surface of the chill (3) facing away from the cavity to generate magnetic attraction force to attract and fix the chill (3) to the corresponding mounting surface of the stationary mold (1).

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