A metal casting runner guide structure
By introducing a slag filter assembly and a secondary filter screen into the guide structure of the metal casting runner, the problem of insufficient filtration of metal casting material in the existing technology is solved, achieving high-purity metal casting liquid and uniform flow, improving casting quality and simplifying equipment maintenance.
Patent Information
- Application Number
- CN202522117327.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
The existing metal casting runner guide structure is not conducive to the full filtration of metal casting material during use, resulting in poor quality of molded parts.
A metal casting runner guide structure was designed, including a sprue, a pouring cup, a slag filter assembly, and a filter screen. The slag filter assembly performs preliminary filtration of the metal casting material, and a secondary filter screen is set between the first and second runners for secondary filtration. Combined with an inverted conical pouring cup and a diversion conduit, the purity and flow uniformity of the metal casting liquid are improved.
It improves the purity of the metal casting liquid, reduces porosity defects in castings, shortens filling time, ensures the uniformity of the casting liquid flow and the quality of the molded parts, and facilitates the cleaning of connecting pipes and the replacement of filter screens.
Smart Images

Figure CN224673738U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal casting technology, specifically to a metal casting runner guide structure. Background Technology
[0002] Metal casting is a metal processing technology that involves injecting molten metal into a mold and allowing it to cool and solidify to obtain parts of the desired shape. The gating system is a channel system in which liquid metal flows from the pouring cup into the mold cavity. It is a key structure in the mold that guides the liquid metal into the cavity, and its core function is to ensure that the molten metal fills smoothly and forms the casting.
[0003] While existing metal casting runner guide structures can guide the material, they are not conducive to sufficient filtration of the metal casting material during use, resulting in poor quality of subsequent molded parts. Summary of the Invention
[0004] The purpose of this invention is to provide a metal casting runner guide structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a metal casting runner guide structure, comprising a sprue, a pouring cup, and a slag filter assembly. The pouring cup is fixed to the upper side of the sprue, and two feed pipes are connected to the upper side of the pouring cup. A connecting pipe is installed on the upper side of the feed pipe, and limiting protrusions are fixed on both sides of the inner side of the connecting pipe. A slag filter assembly is installed on the upper side of the inner side of the connecting pipe, and the slag filter assembly includes a filter screen and a limiting frame. Limiting frames are fixed on the upper sides of both sides of the filter screen, and the limiting frames are U-shaped structures. A supporting crossbar is fixed in the middle of the inner side of the connecting pipe, and the supporting crossbar is located below the filter screen. A first horizontal runner is fixed on the lower side of the sprue.
[0006] Furthermore, the pouring cup has an inverted conical structure, and the pouring cup, the sprue, and the first transverse runner are interconnected.
[0007] Furthermore, the filter assembly also includes a sliding groove, and sliding grooves are provided on both sides of the filter screen, and the sliding grooves are slidably connected to the limiting protrusions.
[0008] Furthermore, a sealing ring is provided on the outer side of the connecting pipe, and a threaded connector is integrally fixed on the lower side of the connecting pipe.
[0009] Furthermore, the inner side of the sprue is provided with internal threads, and the threaded connector is screwed into the sprue.
[0010] Furthermore, a second horizontal runner is fixed to the lower side of the first horizontal runner, and a secondary filter screen is fixed between the first horizontal runner and the second horizontal runner.
[0011] Furthermore, the lower side of the second horizontal runner is connected with a branch pipe at equal intervals, and the second horizontal runner and the branch pipe are interconnected.
[0012] This utility model provides a guide structure for a metal casting runner, which has the following beneficial effects: This utility model is equipped with a slag filter assembly. The filter screen is used to filter slag from the metal casting material entering the connecting pipe, thereby improving the purity of the metal casting liquid and the quality of the casting. The support crossbar is located on the lower side of the filter screen to support it. At the same time, the sliding groove of the filter screen slides to correspond to the limiting protrusion. The limiting frames on both sides of the filter screen have a "U" shaped structure that can engage with the limiting protrusion on the inner side of the connecting pipe, thereby facilitating the installation and disassembly of the filter screen. The secondary filter screen between the first and second horizontal sprues can perform secondary filtration of the metal casting liquid, thereby fully removing impurities.
[0013] This utility model is equipped with a diversion conduit. The threaded connector and the internal thread of the sprue are screwed together to facilitate the connection and disassembly between the connecting pipe and the feed pipe, thereby facilitating the cleaning and replacement of the connecting pipe. The pouring cup has an inverted conical structure to reduce pressure loss in the runner, obtain a high ingate speed, shorten the filling time, and effectively reduce the possibility of air mixing into the gating system, thereby reducing casting porosity defects. The molten metal inside the second horizontal runner can be sent into the casting mold through several equally spaced diversion conduits, so that the molten metal flows evenly and stably. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a metal casting runner guide structure according to the present invention; Figure 2 This is a half-sectional view of the connecting pipe of the metal casting runner guide structure of this utility model; Figure 3 This is an exploded structural diagram of the connecting pipe of the metal casting runner guide structure of this utility model; Figure 4 This is a schematic diagram of the first horizontal runner of the metal casting runner guide structure of this utility model.
[0015] In the diagram: 1. Sprue; 2. Pour cup; 3. Feed pipe; 4. Connecting pipe; 5. Limiting protrusion; 6. Filter assembly; 601. Filter screen; 602. Limiting frame; 603. Sliding groove; 7. Support crossbar; 8. Sealing ring; 9. Threaded connector; 10. Internal thread; 11. First transverse runner; 12. Second transverse runner; 13. Secondary filter screen; 14. Diversion conduit. Detailed Implementation
[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0017] like Figures 1-3 As shown, a metal casting gating guide structure includes a sprue 1, a pouring cup 2, and a slag filter assembly 6. The pouring cup 2 is fixed to the upper side of the sprue 1, and two feed pipes 3 are connected to the upper side of the pouring cup 2. A connecting pipe 4 is installed on the upper side of the feed pipe 3, and limit protrusions 5 are fixed on both sides of the inner side of the connecting pipe 4. A sealing ring 8 is provided on the outer side of the connecting pipe 4, and a threaded connector 9 is integrally fixed on the lower side of the connecting pipe 4. The inner side of the sprue 1 is provided with an internal thread 10, and the threaded connector 9 is threadedly screwed into the sprue 1. The threaded connection between the threaded connector 9 and the internal thread 10 of the sprue 1 facilitates the connection and disassembly between the connecting pipe 4 and the feed pipe 3, thereby facilitating the cleaning and replacement of the connecting pipe 4. The inverted conical structure of the pouring cup 2 helps to reduce pressure loss in the flow channel, obtain a high ingate speed, shorten the filling time, and effectively reduce the possibility of air mixing into the gating system, thereby reducing casting porosity defects.
[0018] like Figures 2-3 As shown, a filter assembly 6 is installed on the upper side of the interior of the connecting pipe 4. The filter assembly 6 includes a filter screen 601 and a limiting frame 602. The limiting frame 602 is fixed on the upper sides of both sides of the filter screen 601, and the limiting frame 602 has a "U" shaped structure. A support crossbar 7 is fixed in the middle of the interior of the connecting pipe 4, and the support crossbar 7 is located below the filter screen 601. The filter assembly 6 also includes a sliding groove 603. Sliding grooves 603 are opened on both sides of the filter screen 601, and the sliding grooves 603 are connected to the limiting protrusions. Block 5 is a sliding connection; the filter screen 601 is used to filter slag from the metal casting material entering the connecting pipe 4, thereby improving the purity of the metal casting liquid and the quality of the casting. The support crossbar 7 is located on the lower side of the filter screen 601 and can support it. At the same time, the sliding groove 603 of the filter screen 601 slides to correspond to the limiting protrusion 5. The limiting frames 602 on both sides of the filter screen 601 are "U" shaped structures that can engage with the limiting protrusion 5 on the inner side of the connecting pipe 4, thereby facilitating the installation and disassembly of the filter screen 601.
[0019] like Figure 1 and Figure 4As shown, a first horizontal sprue 11 is fixed to the lower side of the sprue 1. The pouring cup 2 has an inverted conical structure, and the pouring cup 2, sprue 1, and first horizontal sprue 11 are interconnected. A second horizontal sprue 12 is fixed to the lower side of the first horizontal sprue 11, and a secondary filter 13 is fixed between the first horizontal sprue 11 and the second horizontal sprue 12. A diversion conduit 14 is equidistantly connected to the lower side of the second horizontal sprue 12, and the second horizontal sprue 12 and the diversion conduit 14 are interconnected. The secondary filter 13 between the first horizontal sprue 11 and the second horizontal sprue 12 can perform secondary filtration of the molten metal, thereby fully removing impurities. The molten metal inside the second horizontal sprue 12 can be sent into the casting mold through several diversion conduits 14 distributed at equal intervals, so that the molten metal flows evenly and stably.
[0020] In summary, as Figures 1-4 As shown, this metal casting gating guide structure, in use, firstly supplies liquid into the connecting pipe 4. At this time, the filter screen 601 can filter out slag from the metal casting material entering the connecting pipe 4, thereby improving the purity of the metal casting liquid and the quality of the casting. The inverted conical structure of the pouring cup 2 helps to reduce pressure loss in the flow channel, obtain a high ingate speed, shorten the filling time, and effectively reduce the possibility of air mixing into the gating system, reducing casting porosity defects. The pouring cup 2, the sprue 1, and the first transverse gating 11 are interconnected, allowing the metal casting liquid to enter the interior of the first transverse gating 11. At this time, the secondary filter screen 13 between the first transverse gating 11 and the second transverse gating 12 can perform secondary filtration of the metal casting liquid. This process thoroughly removes impurities, allowing the molten metal inside the second horizontal runner 12 to be delivered into the casting mold through several equally spaced diversion pipes 14, ensuring a uniform and stable flow of the molten metal. During use, the threaded connector 9 and the internal thread 10 of the straight runner 1 are threadedly connected, facilitating the connection and disassembly between the connecting pipe 4 and the feed pipe 3, and thus making it easier to clean and replace the connecting pipe 4. The limiting frames 602 on both sides of the filter screen 601 have a "U"-shaped structure that can engage with the limiting protrusions 5 on the inner side of the connecting pipe 4, thus facilitating the installation and disassembly of the filter screen 601. Conversely, during installation, the support crossbar 7 is located below the filter screen 601 to support it. This completes the usage process of the metal casting runner guide structure.
[0021] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A metal casting gating guide structure, comprising a sprue (1), a pouring cup (2), and a slag filter assembly (6), characterized in that, The upper side of the sprue (1) is fixed with a pouring cup (2), and the upper side of the pouring cup (2) is connected with two feed pipes (3). The upper side of the feed pipes (3) is equipped with a connecting pipe (4), and the inner sides of the connecting pipes (4) are fixed with limiting protrusions (5). The upper side of the inner side of the connecting pipes (4) is equipped with a filter assembly (6), and the filter assembly (6) includes a filter screen (601) and a limiting frame (602). The upper sides of the filter screen (601) are fixed with limiting frames (602), and the limiting frames (602) are "U" shaped. The middle of the inner side of the connecting pipes (4) is fixed with a support crossbar (7), and the support crossbar (7) is located below the filter screen (601). The lower side of the sprue (1) is fixed with a first horizontal sprue (11).
2. The metal casting runner guide structure according to claim 1, characterized in that, The pouring cup (2) has an inverted conical structure, and the pouring cup (2), the sprue (1), and the first sprue (11) are interconnected.
3. The metal casting runner guide structure according to claim 1, characterized in that, The filter assembly (6) also includes a sliding groove (603). The filter screen (601) has sliding grooves (603) on both sides, and the sliding grooves (603) are slidably connected to the limiting protrusions (5).
4. The metal casting runner guide structure according to claim 1, characterized in that, A sealing ring (8) is provided on the outside of the connecting pipe (4), and a threaded connector (9) is integrally fixed on the lower side of the connecting pipe (4).
5. The metal casting runner guide structure according to claim 4, characterized in that, The inner side of the sprue (1) is provided with an internal thread (10), and the threaded connector (9) is threadedly connected to the sprue (1).
6. The metal casting runner guide structure according to claim 1, characterized in that, A second horizontal runner (12) is fixed to the lower side of the first horizontal runner (11), and a secondary filter screen (13) is fixed between the first horizontal runner (11) and the second horizontal runner (12).
7. A metal casting runner guide structure according to claim 6, characterized in that, The second horizontal runner (12) is connected to a shunt pipe (14) at equal intervals on its lower side, and the second horizontal runner (12) and the shunt pipe (14) are interconnected.