A crescent lock molding casting mold

Abstract

This utility model discloses a crescent lock forming casting mold, belonging to the field of casting mold technology. It solves the problem that the asbestos rope in the groove of the existing device cannot effectively isolate the outside air, which easily leads to the entry of outside air into the forming zone, thereby affecting the quality of the casting, and making it inconvenient to observe whether the molten metal will fill the forming zone. It includes a lower mold and an upper mold. The forming zone is opened in the middle of the top surface of the lower mold. A rectangular groove is opened on the top surface of the lower mold. A rectangular rubber pad is fixedly installed on the bottom surface of the rectangular groove. An overflow hole is opened on the side of the top surface of the upper mold away from the pouring hole. By inserting the rectangular protrusion into the inside of the rectangular groove, the entry of outside air into the interior of the forming zone can be avoided, thus avoiding the influence of the external environment on the casting inside the forming zone. After the molten metal fills the interior of the forming zone, the excess molten metal will overflow through the overflow hole, achieving the purpose of making it easy to observe whether the molten metal has filled the forming zone.

Description

Technical Field

[0001] This utility model relates to the field of casting mold technology, specifically a crescent lock forming casting mold. Background Technology

[0002] Crescent locks are widely used in sliding doors and windows. The handle of a crescent lock has a crescent lock plate, which is used to lock the door by cooperating with the lock hook. The crescent lock plate and the handle are integrally molded and can be manufactured by casting process.

[0003] A search revealed that patent application CN202222190396.3 discloses an aluminum alloy metal casting mold, belonging to the field of casting technology. It includes two symmetrically arranged modules, each with a cooling channel connected to a coolant inlet on the outer wall of the module. Positioning holes and positioning pins are also provided on both sides of the symmetrical plane of the module. A groove is also provided on the side with the positioning pin, and the groove is filled with asbestos rope. The positions of the positioning holes and positioning pins are symmetrical about the symmetrical plane.

[0004] Although the aluminum alloy casting mold uses asbestos rope to fill the slots, effectively preventing the aluminum alloy melt from overflowing, the asbestos rope in the slots of the aluminum alloy casting mold cannot effectively isolate the outside air, which can easily lead to outside air entering the forming area, thereby affecting the quality of the casting, and making it difficult to observe whether the molten metal will fill the forming area.

[0005] Therefore, we propose a crescent lock molding casting mold. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a crescent lock molding casting mold, which solves the problem that the asbestos rope in the groove of the existing device cannot effectively isolate the outside air, which easily leads to the entry of outside air into the molding zone, thereby affecting the quality of the casting, and it is also inconvenient to observe whether the molten metal will fill the molding zone.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a crescent lock molding casting mold, comprising a lower mold and an upper mold, wherein a molding area is provided in the middle of the top surface of the lower mold, and a casting hole is provided in the top surface of the upper mold;

[0008] The top surface of the lower mold has a rectangular groove, and a rectangular rubber pad is fixedly installed on the bottom surface of the rectangular groove. The forming area is located in the middle of the rectangular groove, and an overflow hole is provided on the top surface of the upper mold away from the pouring hole.

[0009] Preferably, the pouring hole and the overflow hole are symmetrically distributed on both sides of the forming area. The top surface of the upper mold is fixedly installed with an overflow pipe located directly above the overflow hole. The overflow pipe is conical. When molten metal is poured into the forming area through the pouring hole, the molten metal will first fill the forming area. Excess molten metal will overflow from the overflow hole and enter the interior of the overflow pipe. Then, it is determined whether the forming area is filled. The overflow pipe is set to be conical to facilitate its separation from the cooled metal inside.

[0010] Preferably, the lower mold and the upper mold are respectively fixedly installed with symmetrically distributed lower connecting handles and upper connecting handles. The top surface of the lower connecting handle is fitted with a threaded rod through a bearing ring. The upper connecting handle has a threaded hole, and the threaded rod is threadedly fitted inside the threaded hole. The threaded hole restricts the upper connecting handle to the upper connecting handle, which can prevent the lower mold and the upper mold from being misaligned when moving.

[0011] Preferably, a turntable is threaded onto the outer surface of the threaded rod, and the turntable is located above the upper connecting handle. By rotating the turntable, the upper connecting handle can be pressed against the top surface of the lower connecting handle, thereby making the lower mold and the upper mold fit tightly together.

[0012] Preferably, four handles are fixedly installed on the side of the turntable in an array, which facilitates the rotation of the turntable.

[0013] Preferably, six symmetrically distributed ventilation holes are provided on both sides of the top surface of the lower mold. The ventilation holes facilitate the increase of the contact area between the lower mold and the air, and at the same time, increase the air circulation rate inside the lower mold, which is beneficial to improve the cooling rate of the lower mold.

[0014] This utility model provides a crescent lock molding casting mold. It has the following beneficial effects:

[0015] 1. This crescent-shaped lock casting mold, by inserting a rectangular protrusion into the inside of a rectangular groove, causes a rectangular rubber pad to deform under the pressure of the rectangular protrusion and fill the gap between the rectangular protrusion and the rectangular groove. This prevents outside air from entering the molding zone and avoids the influence of the external environment on the casting inside the molding zone. After the molten metal fills the inside of the molding zone, the excess molten metal will overflow through the overflow hole, which makes it easy to observe whether the molten metal has filled the molding zone. This solves the problem that the asbestos rope in the groove of the existing device cannot effectively isolate outside air, which can easily lead to outside air entering the molding zone and thus affecting the quality of the casting, and also makes it difficult to observe whether the molten metal has filled the molding zone.

[0016] 2. This crescent-shaped casting mold can collect molten metal overflowing from the overflow hole through the overflow tube. Since the overflow tube is conical, it facilitates the separation of the overflow tube from the cooled metal inside. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of the lower mold of this utility model;

[0019] Figure 3 This is a schematic diagram of the lower mold structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the upper mold structure of this utility model.

[0021] In the diagram: 1. Lower mold; 11. Molding area; 12. Rectangular groove; 13. Rectangular rubber pad; 14. Ventilation hole; 15. Lower connecting handle; 16. Threaded rod; 17. Turntable; 18. Handle; 2. Upper mold; 21. Gating hole; 22. Overflow hole; 23. Overflow pipe; 24. Rectangular protrusion; 25. Upper connecting handle; 26. Threaded hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: As Figure 1-4As shown: It includes a lower mold 1 and an upper mold 2. A forming area 11 is formed in the middle of the top surface of the lower mold 1. A pouring hole 21 is formed in the top surface of the upper mold 2. A rectangular groove 12 is formed in the top surface of the lower mold 1. A rectangular rubber pad 13 is fixedly installed on the bottom surface of the rectangular groove 12. The forming area 11 is located in the middle of the rectangular groove 12. A rectangular protrusion 24 matching the rectangular groove 12 is fixedly installed on the bottom surface of the upper mold 2. An overflow hole 22 is formed on the side of the top surface of the upper mold 2 away from the pouring hole 21. By inserting the rectangular protrusion 24 into the inside of the rectangular groove 12, the rectangular rubber pad 13 is deformed by the rectangular protrusion 24 and fills the gap between the rectangular protrusion 24 and the rectangular groove 12. This can prevent outside air from entering the interior of the forming area 11 and avoid the influence of the external environment on the casting inside the forming area 11. After the molten metal fills the interior of the forming area 11, the excess molten metal will overflow through the overflow hole 22, which makes it easy to observe whether the molten metal has filled the forming area 11.

[0024] Example 2: As Figure 1 and 4 As shown: the pouring hole 21 and the overflow hole 22 are symmetrically distributed on both sides of the molding area 11. The top surface of the upper mold 2 is fixedly installed with an overflow pipe 23 located directly above the overflow hole 22. The overflow pipe 23 is conical. The overflow pipe 23 can collect the molten metal overflowing from the overflow hole 22. Since the overflow pipe 23 is conical, it is easy to separate the overflow pipe 23 from the cooled metal inside.

[0025] Example 3: As Figure 1-4 As shown: The lower mold 1 and the upper mold 2 are respectively fixedly mounted with symmetrically distributed lower connecting handles 15 and upper connecting handles 25 on their sides. A threaded rod 16 is rotatably fitted onto the top surface of the lower connecting handle 15 via a bearing ring. A threaded hole 26 is provided on the upper connecting handle 25, and the threaded rod 16 is threadedly fitted inside the threaded hole 26. A turntable 17 is threadedly fitted onto the outer surface of the threaded rod 16, and the turntable 17 is located above the upper connecting handle 25. Four arrayed handles 18 are fixedly mounted on the side of the turntable 17. Six symmetrically distributed handles are provided through the top surface of the lower mold 1 on both sides. The ventilation holes 14 of the cloth, through the threaded holes 26, restrict the upper connecting handle 25 above the lower connecting handle 15, which can prevent the lower mold 1 and the upper mold 2 from being misaligned during movement. By rotating the turntable 17, the upper connecting handle 25 can be pressed tightly against the top surface of the lower connecting handle 15, thereby making the lower mold 1 and the upper mold 2 fit tightly. The handle 18 facilitates the rotation of the turntable 17, and the ventilation holes 14 increase the contact area between the lower mold 1 and the air, while also increasing the air circulation rate inside the lower mold 1, which is beneficial to improving the cooling rate of the lower mold 1.

[0026] The working principle and usage process of this utility model: When using this toothed lock forming casting mold, the handle 18 drives the turntable 17 to rotate on the outer surface of the threaded rod 16, thereby pressing and fixing the upper connecting handle 25 and the lower connecting handle 15 together. At this time, the lower mold 1 and the upper mold 2 are in close contact, and the rectangular protrusion 24 is inserted into the inside of the rectangular groove 12. The rectangular rubber pad 13 is deformed by the rectangular protrusion 24 and fills the gap between the rectangular protrusion 24 and the rectangular groove 12, which can prevent outside air from entering the interior of the forming area 11. Then, molten metal is poured into the interior of the forming area 11 through the pouring hole 21. When the molten metal fills the interior of the forming area 11, the excess molten metal will overflow through the overflow hole 22 and then enter the interior of the overflow pipe 23. When the molten metal inside the forming area 11 cools and solidifies, the turntable 17 can be rotated in the opposite direction to separate the lower mold 1 and the upper mold 2, and then the casting inside the forming area 11 can be taken out. Since the overflow pipe 23 is conical, it is easy to separate it from the internal cooled metal.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A crescent lock molding casting mold, comprising a lower mold (1) and an upper mold (2), wherein a molding area (11) is provided in the middle of the top surface of the lower mold (1), and a casting hole (21) is provided in the top surface of the upper mold (2). Its features are: The top surface of the lower mold (1) is provided with a rectangular groove (12), and a rectangular rubber pad (13) is fixedly installed on the bottom surface of the rectangular groove (12). The forming area (11) is located in the middle of the rectangular groove (12). The bottom surface of the upper mold (2) is fixedly installed with a rectangular protrusion (24) that matches the rectangular groove (12). An overflow hole (22) is provided on the side of the top surface of the upper mold (2) away from the pouring hole (21).

2. The crescent lock molding casting mold according to claim 1, characterized in that: The pouring hole (21) and overflow hole (22) are symmetrically distributed on both sides of the molding area (11). The top surface of the upper mold (2) is fixedly installed with an overflow pipe (23) located directly above the overflow hole (22). The overflow pipe (23) is conical.

3. The crescent lock molding casting mold according to claim 1, characterized in that: The lower mold (1) and the upper mold (2) are respectively fixedly installed with symmetrically distributed lower connecting handles (15) and upper connecting handles (25). The top surface of the lower connecting handle (15) is fitted with a threaded rod (16) through a bearing ring. The upper connecting handle (25) is provided with a threaded hole (26). The threaded rod (16) is threadedly fitted inside the threaded hole (26).

4. The crescent lock molding casting mold according to claim 3, characterized in that: The outer surface of the threaded rod (16) is threaded with a turntable (17), which is located above the upper connecting handle (25).

5. The crescent lock molding casting mold according to claim 4, characterized in that: The turntable (17) has four arrayed handles (18) fixedly installed on its side.

6. The crescent lock molding casting mold according to claim 1, characterized in that: The lower mold (1) has six symmetrically distributed ventilation holes (14) on both sides of its top surface.

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