Split type mounting structure of core-pulling mechanism of die-casting die

Abstract

The utility model provides a split type installation structure of a die-casting die core-pulling mechanism, which comprises a die and a core-pulling mechanism installed in the die, the core-pulling mechanism is composed of a first split body and a second split body which are detachable, the first split body is connected to the die in a sliding mode, and a mold core participating in part forming is arranged on the second split body. In the conventional die casting process, the first split body and the second split body are fixed into a whole through the first connecting groove, the second connecting groove and the lock pin piece which are matched with each other, the second split body moves along with the first split body, and forming of parts cannot be affected; after the lock pin piece is taken out, the second split body can be separated from the first split body, when the mold is cleaned, only the second split body participating in forming needs to be processed, the first split body and the second split body can be made of different materials according to requirements, and therefore the mold has the advantages of saving cost and reducing weight.

Description

Technical Field

[0001] This utility model relates to a die-casting mold, specifically a split-type installation structure for a die-casting mold core-pulling mechanism. Background Technology

[0002] Low-pressure casting is a common metal forming process in which molten metal is poured into a sealed cavity under low pressure and solidifies. The core-pulling mechanism is an important component of low-pressure casting molds, containing a core that conforms to the complex surface of the part and participates in the forming process. After die casting is complete, the core is removed to extract the part.

[0003] like Figure 1 The diagram shows a common inclined guide post mating structure. The core-pulling mechanism is slidably mounted on the upper mold and connected to the lower mold via inclined guide posts. When the upper mold moves upward, the core-pulling mechanism moves inclined along the guide posts and horizontally relative to the upper mold, thereby separating the core from the cavity. In conventional technology, the core-pulling mechanism is a one-piece structure made entirely of mold steel, which is quite heavy. Cleaning adhered aluminum requires removing the entire core-pulling mechanism, reducing equipment maintenance time and impacting the efficiency of low-pressure casting. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a split installation structure for a die-casting mold core-pulling mechanism, including a mold and a core-pulling mechanism installed in the mold. The core-pulling mechanism includes a first split body slidably connected to the mold and a second split body connected to the end of the first split body. The end face of the second split body opposite to the first split body is provided with a positioning groove, and the surface of the first split body opposite to the second split body is provided with a limiting part that can be inserted into the positioning groove. The surface of the second split body is provided with a first connecting groove that communicates with the positioning groove, and the surface of the limiting part is provided with a second connecting groove, with the first connecting groove and the second connecting groove being opposite to each other.

[0005] The core-pulling mechanism also includes a locking pin that is detachably installed on the second split. The locking pin passes through the first connecting groove and the second connecting groove in sequence to restrict the limiting part in the positioning groove.

[0006] Furthermore, the dimensions of the limiting part and the positioning groove are matched.

[0007] Furthermore, the locking pin is embedded in the first connecting groove, and the surface of the first connecting groove is provided with a hook groove for removing the locking pin.

[0008] Furthermore, the mold includes an upper mold and a lower mold arranged opposite to each other, and a transverse guide rail is horizontally arranged on the opposite side of the upper mold and the lower mold, and the first split part is slidably connected to the transverse guide rail.

[0009] Furthermore, the surface of the lower mold is inclined with guide posts, and the first part is provided with guide holes for insertion of the guide posts. The core-pulling mechanism moves horizontally along the transverse guide rail while rising along the guide posts.

[0010] Furthermore, guide grooves are horizontally provided on both sides of the first split body, and the transverse guide rail protrudes from the inner surface of the upper mold and is fitted into the guide groove.

[0011] Furthermore, the outer side of the first split body is an inclined surface, and a locking block is provided on the outer side of the lower mold, and the side of the locking block matches the inclined surface of the first split body.

[0012] Furthermore, the surface of the first split body is provided with a limiting groove with an opening on one side along the direction of the transverse guide rail, and a limiting block is provided on the outer side of the upper mold that is inserted into the limiting groove along the opening.

[0013] Furthermore, the limiting block is fixedly connected to the outside of the upper mold by limiting bolts.

[0014] Furthermore, the second component is made of a different material than the first component.

[0015] This utility model provides a split-type installation structure for a die-casting mold core-pulling mechanism, including a mold and a core-pulling mechanism installed inside the mold. The core-pulling mechanism consists of a detachable first part and a second part. The first part is slidably connected to the mold, and the second part is provided with a core that participates in the forming of the part. In the conventional die-casting process, the first part and the second part are fixed as a whole by a cooperating first connecting groove, a second connecting groove, and a locking pin. The second part moves with the first part without affecting the forming of the part. After removing the locking pin, the second part can be separated from the first part. When cleaning the mold, only the second part that participates in the forming needs to be processed. The first part and the second part can be made of different materials according to requirements, giving this utility model the advantages of cost saving and weight reduction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the connection of the inclined guide pillar structure of the die-casting mold;

[0017] Figure 2 This is a schematic diagram showing the connection between the split-type core-pulling mechanism and the die-casting mold of this utility model;

[0018] Figure 3 This is a schematic diagram of the split-type core-pulling mechanism of this utility model;

[0019] Figure 4 This is an exploded view of the split-type core-pulling mechanism of this utility model;

[0020] Reference numerals: Upper mold 1, Lower mold 2, First split part 3, Second split part 4, Core 5, Positioning groove 6, Limiting part 7, First connecting groove 8, Second connecting groove 9, Locking pin 10, Transverse guide rail 11, Guide post 12, Guide hole 13, Guide groove 14, Locking block 15, Limiting groove 16, Limiting block 17, Hook groove 18. Detailed Implementation

[0021] like Figures 2 to 4 The diagram illustrates a split-type installation structure for a die-casting mold core-pulling mechanism, comprising a mold and a core-pulling mechanism installed within the mold. The core-pulling mechanism includes a first split 3 slidably connected to the mold and a second split 4 connected to the end of the first split 3. The surface of the second split 4 has a core 5 that conforms to the surface of the die-casting part, used to shape the surface of the part. The end face of the second split 4 opposite to the first split 3 has a positioning groove 6. The surfaces of the first split 3 and the second split 4 opposite to each other have protruding limiting portions 7 that can be inserted into the positioning groove 6. The dimensions of the limiting portions 7 and the positioning groove 6 are preferably matched to quickly position the first split 3. The surface of the second split 4 has a first connecting groove 8 communicating with the positioning groove 6, and the surface of the limiting portion 7 has a second connecting groove 9, with the first connecting groove 8 and the second connecting groove 9 opposite each other. The core-pulling mechanism also includes a locking pin 10 detachably installed on the second split 4. The locking pin 10 passes sequentially through the first connecting groove 8 and the second connecting groove 9, confining the limiting portion 7 within the positioning groove 6.

[0022] This invention uses a locking pin 10, which mates with the first connecting groove 8 and the second connecting groove 9, to fix the relative positions of the first split body 3 and the second split body 4. When the locking pin 10 is pulled out of the first connecting groove 8, the second split body 4, which contains the core 5, can detach from the first split body 3. At this point, the first split body 3 can be removed separately, and the core 5 can be cleaned. The first split body 3 and the second split body 4 can be made of different materials according to specific needs. For example, the second split body 4, which participates in the molding, can use H13 mold steel, while the first split body 3, which plays a sliding role, can use inexpensive carbon steel or ordinary alloy steel. Compared with the one-piece structure in the prior art, the slider provided in this application has the advantages of easy cleaning, light weight, and low price. Furthermore, the locking pin 10 is embedded in the first connecting groove 8. Under normal conditions, the first split body 3 and the second split body 4 can form a relatively complete whole without interfering with the structure of the upper mold 1. The surface of the first connecting groove 8 is provided with a hook groove 18, which allows the locking pin 10 to be removed from the first connecting groove 8 using a tool.

[0023] Specifically, such as Figure 1As shown, the mold includes an upper mold 1 and a lower mold 2 arranged opposite to each other. The upper mold 1 and the lower mold 2 adopt an inclined guide post cooperation structure. A transverse guide rail 11 is horizontally arranged on the opposite side of the upper mold 1 and the lower mold 2, and the first part 3 of the split core-pulling mechanism is slidably connected to the transverse guide rail 11. The surface of the lower mold 2 is inclined with guide posts 12. The first part 3 has a guide hole 13 for inserting the guide post 12. The upper mold 1 moves upward under the drive of the external lifting mechanism. Due to the cooperation restriction of the guide hole 13 and the guide post 12, the core-pulling mechanism moves horizontally along the transverse guide rail 11 while rising along the guide post 12, thereby realizing the separation of the core-pulling mechanism relative to the upper mold 1. In this embodiment, guide grooves 14 are horizontally arranged on both sides of the first part 3. The transverse guide rail 11 protrudes from the inner surface of the upper mold 1 and is fitted in the guide groove 14, so that the first part 3 can slide stably relative to the upper mold 1.

[0024] Furthermore, the outer side of the first part 3 is an inclined surface, and the outer side of the lower mold 2 is provided with a locking block 15, and the side of the locking block 15 matches the inclined surface of the first part 3. Through the cooperation of the two inclined surfaces, the movement of the first part along the guide post 12 can be strengthened, thereby enhancing the operational stability of the entire core-pulling mechanism.

[0025] Furthermore, the surface of the first split body 3 is provided with a limiting groove 16 with an opening on one side along the extension direction of the transverse guide rail 11. The outer side of the upper mold 1 is provided with a limiting block 17 that is inserted into the limiting groove 16 along the opening. The limiting block 17 is fixedly connected to the outer side of the upper mold 1 by a limiting bolt. When the first split body 3 moves along the transverse guide rail 11, the limiting block 17 touches the edge of the limiting groove 16 after the first split body 3 is in place, blocking the first split body 3 from moving forward.

[0026] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A split mounting structure for a core-pulling mechanism of a die-casting mold, comprising a mold and a core-pulling mechanism mounted in the mold, characterized by: The core pulling mechanism comprises a first part (3) slidably connected to a mold and a second part (4) connected to an end of the first part (3); an opposite end surface of the second part (4) is provided with a positioning groove (6), and an opposite surface of the first part (3) and the second part (4) is provided with a limiting part (7) capable of being inserted into the positioning groove (6); a surface of the second part (4) is provided with a first connecting groove (8) connected to the positioning groove (6), and a surface of the limiting part (7) is provided with a second connecting groove (9) opposite to the first connecting groove (8). The core pulling mechanism further comprises a locking pin (10) detachably mounted on the second part (4), the locking pin (10) sequentially passes through the first connecting groove (8) and the second connecting groove (9), and the limiting part (7) is limited in the positioning groove (6).

2. The split mounting structure for a core-pulling mechanism of a die casting mold according to claim 1, characterized in that: The limiting part (7) and the positioning groove (6) are matched in size.

3. The split mounting structure for a core-pulling mechanism of a die casting mold according to claim 1, characterized in that: The locking pin (10) is embedded in the first connecting groove (8), and a surface of the first connecting groove (8) is provided with a hook groove (18) for taking out the locking pin (10).

4. The split mounting structure for a core-pulling mechanism of a die casting mold according to claim 1, wherein: The mold comprises an upper mold (1) and a lower mold (2) oppositely arranged, and a horizontal guide rail (11) is horizontally arranged on an opposite side of the upper mold (1) and the lower mold (2), and the first part (3) is slidably connected to the horizontal guide rail (11).

5. A split mounting structure for a core-pulling mechanism of a die casting mold according to claim 4, characterized in that: An inclined guide column (12) is arranged on a surface of the lower mold (2), a guide hole (13) is arranged in the first part (3) and matched with the guide column (12) to be inserted, and the core pulling mechanism moves horizontally along the horizontal guide rail (11) while ascending along the guide column (12).

6. A split mounting structure for a core-pulling mechanism of a die casting mold according to claim 5, characterized in that: Horizontal guide grooves (14) are arranged on both sides of the first part (3), and the horizontal guide rail (11) protrudes from an inner surface of the upper mold (1) and is matched and arranged in the guide grooves (14).

7. A split mounting structure for a core-pulling mechanism of a die casting mold according to claim 5, characterized in that: An outer side of the first part (3) is an inclined surface, a clamping block (15) is arranged on an outer side of the lower mold (2), and a side surface of the clamping block (15) is matched with the inclined surface of the first part (3).

8. The split mounting structure for a core-pulling mechanism of a die casting mold according to claim 5, characterized in that: A limiting groove (16) with one side opening arranged along an extension direction of the horizontal guide rail (11) is arranged on a surface of the first part (3), and a limiting block (17) is arranged on an outer side of the upper mold (1) and inserted into the limiting groove (16) along the opening.

9. A split mounting structure for a core-pulling mechanism of a die casting mold according to claim 8, characterized in that: The limiting block (17) is fixedly connected to the outer side of the upper mold (1) by a limiting bolt.

10. The split mounting structure for a core-pulling mechanism of a die casting mold according to claim 4, characterized in that: The second part (4) and the first part (3) are made of different materials.

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