Die-casting forming die for hardware
By optimizing the design of the flow guide seat and flow channel of the die-casting mold for hardware parts, the problem of insufficient control of molten metal flow was solved, enabling efficient molding of high-precision and complex structure products, and improving product quality and production efficiency.
Patent Information
- Application Number
- CN202520097080.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Existing die-casting molds for hardware parts have defects in gate design and molten metal flow control, resulting in poor product molding quality and mechanical properties, making it particularly difficult to meet the manufacturing requirements of high precision and complex structures.
A frustum-shaped flow guide seat and an inclined flow channel were designed, combined with flow guide grooves and flow divider protrusions, to optimize the flow path of molten metal, ensure uniform filling and reduce pressure difference.
It improves the molding accuracy and surface quality of products, reduces mold wear and heat accumulation, extends mold life, reduces scrap rate, and improves production efficiency.
Smart Images
Figure CN223833438U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hardware die casting molds, and in particular to a hardware die casting mold. Background Technology
[0002] In the hardware manufacturing industry, die casting technology is widely used because it can efficiently and accurately produce metal parts with complex shapes and precise dimensions. As the core of this technology, the design and manufacturing of die casting molds directly affect product quality and production efficiency. Traditional hardware die casting molds typically consist of two main parts: a front mold and a rear mold. The front mold is responsible for forming the external shape of the product, while the rear mold mainly undertakes the internal structure and demolding function.
[0003] However, existing die-casting molds still have some problems in practical applications, especially in terms of gate design and molten metal flow control. Traditional gate designs are often relatively simple and lack effective flow guiding mechanisms, resulting in uneven flow of molten metal when injected into the mold. This easily leads to defects such as incomplete filling, air bubbles, and shrinkage cavities, seriously affecting the molding quality and mechanical properties of the product. In addition, the runner design in the rear mold is also directly related to the distribution and cooling effect of molten metal. An unreasonable runner design will exacerbate the turbulence of metal flow, increase the pressure difference inside the mold, and thus affect the dimensional accuracy and surface finish of the product.
[0004] In particular, for hardware parts requiring high precision and complex structures, the design of the mold's gate and runner is especially important. Traditional circular gates and straight runners are no longer sufficient to meet these high requirements because they are difficult to effectively control the flow direction and speed of molten metal, and difficult to achieve uniform filling and rapid cooling and solidification of the molten metal. Utility Model Content
[0005] The purpose of this application is to provide a mold structure that can guide the orderly diversion of molten metal and effectively control the metal filling speed and pressure, so as to meet the manufacturing needs of high-precision and complex structure hardware parts.
[0006] A die-casting mold for hardware parts includes a front mold and a rear mold. The front mold includes a front template, a front sprue bushing, and a front mold cavity. The front sprue bushing is disposed on one side of the front template, and the front mold cavity is disposed on the bottom surface of the front template. The front sprue bushing communicates with the front mold cavity. The rear mold includes a rear template, square iron blocks, a rear mold base plate, and an ejector plate. The square iron blocks are disposed between the rear template and the rear mold base plate, and the ejector plate is disposed between the two square iron blocks. A flow guide seat is disposed on the rear template corresponding to the front sprue bushing. The flow guide seat is frustum-shaped, and a flow guide groove is disposed on the outer edge of the upper part of the flow guide seat. A rear core corresponding to the front mold cavity is disposed on the rear template. A flow divider is disposed on the rear core corresponding to the flow guide groove. The flow divider is inclined, and the outlet from the flow guide groove to the flow divider is inclined. A flow divider protrusion is disposed at the outlet of the flow divider.
[0007] In one embodiment, grooves are provided on both sides of the front template.
[0008] In one embodiment, the guide groove is an arc-shaped groove.
[0009] In one embodiment, the guide channel is provided with a waste ejection hole.
[0010] In one embodiment, the rear core is provided with a first countersunk hole forming protrusion.
[0011] In one embodiment, the rear core is provided with a triangular through-hole forming protrusion.
[0012] In one embodiment, a side hole forming mechanism is provided on the rear core. The side hole forming mechanism includes a first slider module and a second slider module. The first slider module includes a first forming protrusion and a second countersunk hole forming protrusion, and the second slider module has a second forming protrusion.
[0013] The beneficial effects of this application are:
[0014] This mold cleverly incorporates a frustum-shaped flow guide between the front and rear molds, with a flow channel designed on its upper outer edge. This design not only effectively guides the flow direction of molten metal as it enters the mold, but also controls the flow rate of the molten metal through the shape and position of the flow channel, ensuring that the metal can be filled into the front mold cavity evenly and smoothly, thereby greatly improving the molding accuracy and surface quality of the product.
[0015] The inclined runner design, with the outlet of the runner and the guide channel both angled, helps the molten metal to gradually slow down and distribute evenly during flow, effectively avoiding common molding defects such as incomplete filling, bubbles, and shrinkage cavities. Simultaneously, the flow-dividing protrusions at the outlet of the runner further promote uniform metal distribution, ensuring consistent metal filling in all parts of the mold and improving the overall quality of the product.
[0016] Optimized gate and runner design reduces pressure differentials and turbulent metal flow within the mold, minimizing mold wear and heat buildup during die casting and thus extending mold life. Simultaneously, smoother molten metal filling reduces scrap rates caused by filling issues, significantly improving production efficiency.
[0017] In summary, the die-casting mold for hardware parts proposed in this application effectively solves the shortcomings of traditional molds in controlling the flow of molten metal through innovative design of the flow guide seat and flow channel, and significantly improves the molding quality and production efficiency of the products. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a hardware die-casting mold after the front mold and rear mold are separated, according to an embodiment of this application.
[0019] Figure 2 This is a schematic diagram of the structure of the bottom of the front mold of a die-casting mold for hardware parts provided in an embodiment of this application;
[0020] Figure 3 A schematic diagram of the structure of the rear mold of a die-casting mold for hardware parts provided in an embodiment of this application;
[0021] Figure 4 A schematic diagram of the side hole forming mechanism of a die-casting mold for hardware parts provided in an embodiment of this application; Detailed Implementation
[0022] The terminology used in the implementation section of this application is only for explaining specific embodiments of this application and is not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0023] The following describes in detail the specific embodiments of the hardware die-casting mold of this application with reference to the accompanying drawings.
[0024] like Figures 1 to 4As shown, the die-casting mold for hardware parts of this application mainly comprises two parts: a front mold 100 and a rear mold 200. The front mold includes a front template 1, a front sprue sleeve 2, and a front mold cavity 3. The front sprue sleeve 2 is located on one side of the front template 1 and is used to guide molten metal into the mold. The front mold cavity 3 is located on the bottom surface of the front template 1 and is connected to the front sprue sleeve 2, used to form the external shape of the hardware parts.
[0025] The rear mold section includes a rear template 4, square iron blocks 5, a rear mold base plate 6, and an ejector plate 7. Square iron blocks 5 are positioned between the rear template 4 and the rear mold base plate 6, serving a supporting and positioning function. The ejector plate 7 is positioned between the two square iron blocks 5, used to eject the formed product after die casting.
[0026] On the rear mold plate 4, a flow guide seat 8 is provided at the position corresponding to the front gate sleeve 2. The flow guide seat 8 is frustum-shaped, and a flow guide groove 9 is provided on its upper outer edge. The flow guide groove 9 can effectively guide the flow of molten metal, ensuring that the molten metal enters the mold evenly and smoothly.
[0027] Furthermore, the rear template 4 is also provided with a rear core 10 corresponding to the front mold cavity 3. A flow divider 11 is provided on the rear core 10 corresponding to the flow guide groove 9. The flow divider 11 is inclined, extending from the flow guide groove 9 to its outlet. This inclined design helps the molten metal to gradually slow down and distribute evenly during flow, avoiding defects such as incomplete filling and bubbles. At the outlet of the flow divider 11, a flow divider protrusion 12 is also provided to further promote the uniform distribution of the molten metal.
[0028] In one specific embodiment of this application, grooves are provided on both sides of the front template 1 to facilitate the installation and disassembly of the front template.
[0029] In another embodiment, the guide groove 9 is designed as an arc-shaped groove, which can better guide the flow of molten metal and make it enter the diversion channel 11 more smoothly.
[0030] To facilitate the removal of waste material from the mold, this application also provides a waste ejection hole in one embodiment. The hole is provided on the guide groove 9 to eject waste material after die casting is completed, thereby keeping the mold clean.
[0031] Furthermore, various forming protrusions and protrusions can be provided on the rear core 10. For example, in one embodiment, a first countersunk hole forming protrusion 13 is provided on the rear core 10 for forming a countersunk hole on the hardware. In another embodiment, a triangular through hole forming protrusion 14 is provided on the rear core 10 for forming a triangular through hole.
[0032] like Figure 4As shown, to meet the needs of more complex product structures, this application also provides a side hole forming mechanism in one embodiment. This mechanism includes a first slider module 15 and a second slider module 16. The first slider module 15 includes a first forming protrusion 151 and a second countersunk hole forming protrusion 152, and the second slider module 16 has a second forming protrusion 161. Through the movement and engagement of the slider modules, side holes and other complex structures on the hardware parts can be formed.
[0033] In summary, the die-casting mold for hardware parts of this application achieves uniform and stable flow of molten metal within the mold, improving product molding quality and production efficiency. Simultaneously, the mold's flexibility and adaptability are significantly enhanced, enabling it to meet the manufacturing needs of various complex hardware parts.
[0034] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0035] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.
[0036] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “may include” and “have,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A die-casting mold for hardware parts, characterized in that: The system includes a front mold and a rear mold. The front mold includes a front template, a front sprue bushing, and a front mold cavity. The front sprue bushing is located on one side of the front template, and the front mold cavity is located on the bottom surface of the front template. The front sprue bushing is connected to the front mold cavity. The rear mold includes a rear template, square iron blocks, a rear mold base plate, and an ejector plate. The square iron blocks are located between the rear template and the rear mold base plate, and the ejector plate is located between the two square iron blocks. A flow guide seat is provided on the rear template corresponding to the front sprue bushing. The flow guide seat is frustum-shaped, and a flow guide groove is provided on the outer edge of the upper part of the flow guide seat. A rear core corresponding to the front mold cavity is provided on the rear template. A runner is provided on the rear core corresponding to the flow guide groove. The runner is inclined, and the outlet from the flow guide groove to the runner is inclined. A runner protrusion is provided at the outlet of the runner.
2. The die-casting mold for hardware parts according to claim 1, characterized in that: The front template has grooves on both sides.
3. The die-casting mold for hardware parts according to claim 1, characterized in that: The guide groove is an arc-shaped groove.
4. The die-casting mold for hardware parts according to claim 1, characterized in that: The guide channel is provided with a waste ejection hole.
5. The die-casting mold for hardware parts according to claim 1, characterized in that: The rear core is provided with a first countersunk hole forming protrusion.
6. The die-casting mold for hardware parts according to claim 1, characterized in that: The rear core is provided with a triangular through-hole forming protrusion.
7. The die-casting mold for hardware parts according to claim 1, characterized in that: The rear core is provided with a side hole forming mechanism, which includes a first slider module and a second slider module. The first slider module includes a first forming protrusion and a second countersunk hole forming protrusion, and the second slider module has a second forming protrusion.