3D printing casting mold with novel structure
The casting mold manufactured through 3D printing technology combines the mold surface shell, intermediate reinforcement layer and mesh support structure to solve the problems of low strength and easy deformation of existing casting molds, achieving high-precision, convenient production and durability of large molds.
Patent Information
- Application Number
- CN202422516386.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Existing casting molds have problems such as low strength, easy deformation, high environmental impact, high self-weight, and unsuitable for large-scale mold production.
Casting molds manufactured using 3D printing technology include mold surface shell, intermediate reinforcement layer and mesh support structure. The mold surface shell is a hollow sealing structure, and the intermediate reinforcement layer is connected to the mesh support structure to improve compressive strength and tensile strength and reduce self-weight.
It improves the dimensional accuracy and durability of cast products, reduces post-processing time, is suitable for large-scale mold production, reduces the self-weight of the mold, and is easy to transport.
Smart Images
Figure CN223264740U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting, and in particular to a 3D printing casting mold with a novel structure. Background Art
[0002] A casting mold is a material that is made of other easily formed materials in advance to obtain the structural shape of a part. The mold is then placed in a sand mold, forming a cavity with the same size as the part structure. A fluid liquid is then poured into the cavity. After the liquid cools and solidifies, a part with the same shape and structure as the mold can be formed. The casting mold is an important part in the casting process.
[0003] Existing casting molds include foam molds, wooden molds and metal molds. Foam molds have low strength and are easy to deform, resulting in poor dimensional accuracy of the products produced; wooden molds have high requirements for the storage environment and are greatly affected by ambient temperature and humidity. The size changes, resulting in low dimensional accuracy of the products produced. In addition, due to the low structural strength of wooden molds, they are easily damaged during transportation and use; metal molds are heavy and require crane lifting and transportation. The production and maintenance costs are high, making them unsuitable for making large molds. Utility Model Content
[0004] (1) Technical issues to be solved
[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a 3D printing casting mold with a novel structure.
[0006] (2) Technical solution
[0007] In order to achieve the above-mentioned purpose, the 3D printing casting mold with a novel structure of the utility model includes:
[0008] The outer shell of the mold has the same design shape as the product mold and is a hollow sealed structure;
[0009] An intermediate reinforcement layer, the intermediate reinforcement layer being connected to the interior of the outer shell of the mold and being arranged at intervals;
[0010] A mesh support structure is filled in the interior of the outer shell of the mold.
[0011] Optionally, the inner wall of the outer shell of the mold and the intermediate reinforcement layer are both connected to the mesh support structure.
[0012] Optionally, the mesh support structure includes a plurality of interconnected support plates, each of the plurality of support plates is connected to the inner wall of the outer shell of the mold, and all or part of the support plates are connected to the intermediate reinforcement layer.
[0013] Optionally, the plurality of support plates are perpendicular to the horizontal plane, and the angle between two interconnected support plates is less than 90 degrees, and the support plates in the same direction are parallel to each other.
[0014] Optionally, the angles between the plurality of support plates and the horizontal plane are all less than 90 degrees.
[0015] Optionally, the mesh support structure includes a plurality of mutually parallel first support plates and a plurality of mutually parallel second support plates, the first support plates are connected to the second support plates, the plurality of first support plates and the plurality of second support plates are all connected to the inner wall of the outer shell of the mold, and all or part of the first support plates and all or part of the second support plates are connected to the intermediate reinforcement layer.
[0016] Optionally, the intermediate reinforcement layer is in the shape of a hollow column or a plate, and a support unit with a honeycomb cross-section is provided in the intermediate reinforcement layer.
[0017] Optionally, the intermediate reinforcement layer is in the shape of a hollow column or a plate, and a support unit with a polygonal cross-section is provided in the intermediate reinforcement layer.
[0018] (3) Beneficial effects
[0019] The 3D printing casting mold of this utility model has high compressive strength and is not easy to deform. The cast product has high dimensional accuracy, which reduces the post-processing time of the product. The size changes little due to the influence of ambient temperature and humidity, and the structural strength is high. It is not easy to be damaged during transportation and use, which improves the durability of the mold. The mesh support structure filled inside effectively reduces the weight of the mold, and transportation is simple, which is suitable for making large molds. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of a 3D printing casting mold with a novel structure of the present utility model;
[0021] Figure 2 This is a partial structural diagram of Example 1 of a 3D printing casting mold with a novel structure of the present utility model;
[0022] Figure 3 This is a partial structural diagram of Example 2 of a 3D printing casting mold with a novel structure of the present utility model;
[0023] Figure 4 This is a partial structural diagram of Example 3 of a 3D printing casting mold with a novel structure of the present utility model;
[0024] Figure 5 This is a schematic structural diagram of the intermediate reinforcement layer of the present invention;
[0025] Figure 6This is a schematic structural diagram of another structure of the intermediate reinforcement layer of the present invention;
[0026] Figure 7 This is a partial cross-sectional view of the 3D printed jaw crusher liner mold;
[0027] Figure 8 This is a cross-sectional view of the 3D printed conical liner mold.
[0028] [Description of Reference Numerals]
[0029] 1: mesh support structure; 10: support plate; 11: first support plate; 12: second support plate;
[0030] 2: middle reinforcement layer; 21: support unit;
[0031] 3: mold outer shell;
[0032] 4: Jaw crusher liner mold;
[0033] 5: Conical liner mold. DETAILED DESCRIPTION
[0034] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below with reference to the accompanying drawings and through specific embodiments. Figure 1 The orientation is referenced.
[0035] Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Instead, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0036] like Figure 1 As shown, the present invention provides a 3D printing casting mold with a novel structure, which is used to replace existing foam molds, wooden molds, and metal molds, and is made using 3D printing technology. The 3D printing materials used include ABS, PC, PLA, acrylic, PP+fiberglass, etc., and the mold density is close to that of wood. The 3D printing casting mold with a novel structure includes a mold outer shell 3, an intermediate reinforcement layer 2, and a mesh support structure 1. The mold outer shell 3 has the same design shape as the product mold and is a hollow sealed structure. This prevents sand particles from entering the inner cavity of the mold outer shell 3 during sand mold production.
[0037] The mesh support structure 1 fills the interior of the mold's outer shell 3 and connects to the inner wall of the mold's outer shell 3. This improves the mold's compressive strength while also increasing the mold's tensile strength. This minimizes dimensional changes due to environmental influences, reduces the mold's weight, and reduces the material used in its production. Intermediate reinforcement layers 2 are connected to the interior of the mold's outer shell 3 and are spaced apart. This further increases the mold's compressive and tensile strength, preventing deformation during sand mold production and effectively improving product quality.
[0038] The 3D printing casting mold of the utility model has high compressive strength and is not easy to deform. The cast product has high dimensional accuracy, which reduces the post-processing time of the product; the dimensional change is small due to the influence of ambient temperature and humidity, and the structural strength is high. It is not easy to be damaged during transportation and use, which improves the durability of the casting mold; the mesh support structure 1 filled inside effectively reduces the dead weight of the casting mold, and the transportation is simple, which is suitable for making large casting molds.
[0039] like Figure 1 As shown, the inner wall of the outer shell 3 of the mold and the middle reinforcement layer 2 are connected to the mesh support structure 1, which improves the integrity of the internal support structure of the mold and further improves the compressive strength and tensile strength of the casting mold.
[0040] Example 1
[0041] like Figure 2 As shown, the mesh support structure 1 includes a plurality of interconnected support plates 10, each of which is connected to the inner wall of the outer shell 3 of the mold, and all or part of the support plates 10 are connected to the intermediate reinforcement layer 2. Specifically, the plurality of support plates 10 are perpendicular to the horizontal plane, and the angle between two interconnected support plates 10 is less than 90 degrees. The support plates 10 in the same direction are parallel to each other. Specifically, see Figure 2 The support plates 10 that are all inclined to the left are parallel to each other, the support plates 10 that are all inclined to the right are parallel to each other, and the support plates 10 that are all arranged horizontally are parallel to each other. The mesh support structure 1 has high compressive strength and tensile strength.
[0042] Example 2
[0043] like Figure 3 As shown, the mesh support structure 1 includes multiple interconnected support plates 10. Each of the multiple support plates 10 is connected to the inner wall of the mold outer shell 3, and all or some of the support plates 10 are connected to the intermediate reinforcement layer 2. The angles between the multiple support plates 10 and the horizontal plane are all less than 90 degrees. The interior of the mesh support structure 1 presents a structure similar to multiple stacked upright and inverted pyramids, and the compressive strength is less dependent on the direction of the force.
[0044] Example 3
[0045] like Figure 4 As shown, the mesh support structure 1 includes multiple mutually parallel first support plates 11 and multiple mutually parallel second support plates 12. The first support plates 11 are connected to the second support plates 12. The multiple first support plates 11 and the multiple second support plates 12 are all connected to the inner wall of the mold outer shell 3. All or part of the first support plates 11 and all or part of the second support plates 12 are connected to the intermediate reinforcement layer 2. In the technical solution of this embodiment, the mesh support structure 1 is relatively light, thereby reducing the weight and manufacturing materials of the casting mold, facilitating rapid production, and facilitating the transportation and use of the casting mold.
[0046] The middle reinforcement layer 2 is in the shape of a hollow column or a hollow plate. When the middle reinforcement layer 2 is in the shape of a hollow plate, multiple support plates 10 are connected to the middle reinforcement layer 2. When the middle reinforcement layer 2 is in the shape of a hollow column, the middle reinforcement layer 2 includes multiple hollow columns arranged at intervals, and only some support plates 10 are connected to the middle reinforcement layer 2. Figure 5 As shown, taking the hollow column as an example, the middle reinforcement layer 2 is provided with a support unit 21 with a honeycomb cross section, which improves the compressive and torsional strength of the middle reinforcement layer 2, effectively improves the strength of the casting mold, and prevents the casting mold from being twisted and deformed by pressure in multiple directions during use, thereby ensuring the quality and precision of the product. In another embodiment, as Figure 6 As shown, taking a hollow column as an example, the intermediate reinforcement layer 2 is in the form of a hollow column or plate. Multiple support units 21 with polygonal cross-sections are provided within the intermediate reinforcement layer 2. The polygons are arranged in a sequence extending outward from the center, and reinforcing ribs are connected between the center of the polygon and each of the top legs. When the intermediate reinforcement layer 2 is in the form of a hollow plate, the support units 21 filled within the layer also have a honeycomb or polygonal cross-section.
[0047] Figure 7 and Figure 8 There are two mold structures for 3D printing casting molds. The interior of the jaw crusher liner mold 4 is provided with multiple intermediate reinforcement layers 2 at intervals along the vertical direction. The intermediate reinforcement layer 2 can be hollow plate-shaped or hollow column-shaped; the conical liner mold 5 is in the shape of a trumpet with both ends open. When making the sand mold, the sand inside the conical liner mold 5 will generate an outward extrusion pressure. Due to the special structure of the product, the intermediate reinforcement layer 2 is in the shape of a hollow plate, and the intermediate reinforcement layer 2 is vertically connected to the inner wall of the outer shell 3 of the mold.
[0048] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.
[0049] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0050] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0051] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.
[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A 3D printing casting mold with a new structure, characterized in that: The 3D printing casting mold with a novel structure includes: A mold outer shell (3), wherein the mold outer shell (3) has the same design shape as the product mold, and the mold outer shell (3) is a hollow sealed structure; An intermediate reinforcement layer (2), the intermediate reinforcement layer (2) being connected to the interior of the outer shell (3) of the mold and being arranged at intervals; A mesh support structure (1), wherein the mesh support structure (1) is filled inside the outer shell (3) of the mold.
2. The 3D printing casting mold with a novel structure according to claim 1, characterized in that: The inner wall of the outer shell (3) of the mold and the intermediate reinforcement layer (2) are both connected to the mesh support structure (1).
3. The 3D printing casting mold with a novel structure as claimed in claim 2, characterized in that: The mesh support structure (1) comprises a plurality of interconnected support plates (10), wherein the plurality of support plates (10) are all connected to the inner wall of the outer shell (3) of the mold, and all or part of the support plates (10) are connected to the intermediate reinforcement layer (2).
4. The 3D printing casting mold with a novel structure as claimed in claim 3, characterized in that: The plurality of support plates (10) are all perpendicular to the horizontal plane, and the angle between two interconnected support plates (10) is less than 90 degrees, and the support plates (10) in the same direction are parallel to each other.
5. The 3D printing casting mold with a novel structure as claimed in claim 3, characterized in that: The included angles between the plurality of support plates (10) and the horizontal plane are all less than 90 degrees.
6. The 3D printing casting mold with a novel structure according to claim 2, characterized in that: The mesh support structure (1) comprises a plurality of mutually parallel first support plates (11) and a plurality of mutually parallel second support plates (12), wherein the first support plates (11) are connected to the second support plates (12), the plurality of first support plates (11) and the plurality of second support plates (12) are all connected to the inner wall of the outer shell (3) of the mold, and all or part of the first support plates (11) and all or part of the second support plates (12) are connected to the intermediate reinforcement layer (2).
7. The 3D printing casting mold with a novel structure according to claim 1, characterized in that: The intermediate reinforcement layer (2) is in the shape of a hollow column or a plate, and a support unit (21) with a honeycomb cross-section is provided in the intermediate reinforcement layer (2).
8. The 3D printing casting mold with a novel structure according to claim 1, characterized in that: The intermediate reinforcement layer (2) is in the shape of a hollow column or a plate, and a support unit (21) with a polygonal cross section is provided in the intermediate reinforcement layer (2).