M-shaped high-flow exhaust block structure of die-casting die

Abstract

The utility model discloses an M-shaped large-flow exhaust block structure of a die-casting die, which comprises an upper exhaust block and a lower exhaust block which are matched up and down, the upper exhaust block is arranged on an upper die frame of the die-casting die, the lower exhaust block is arranged on a lower die frame of the die-casting die, the lower exhaust block comprises a bottom plate embedded in the lower die frame, an M-shaped convex block is arranged on the bottom plate, and the M-shaped convex block is arranged on the bottom plate. An exhaust communicating groove communicated with a lower mold core in the lower mold frame is formed in one end of the upper side of the bottom plate, one end of the M-shaped protruding block is communicated with the exhaust communicating groove, the M-shaped protruding block is provided with two ridge-shaped protruding parts which are arranged side by side and extend in the length direction of the bottom plate, and exhaust grooves are formed in the surfaces of the ridge-shaped protruding parts in the length direction of the bottom plate; the upper exhaust block is provided with an exhaust concave part matched with the M-shaped protruding block in shape, and an exhaust hole is formed in the end, away from the exhaust communicating groove, of the upper exhaust block. The die-casting die exhaust block can solve the product quality problem caused by the fact that an existing exhaust block in a die-casting die cannot meet the requirement for the gas displacement of a product.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting moulds, in particular to an M-type large-flow exhaust block structure of a die casting mould. Background Art

[0002] Die-casting molds are a type of material forming mold commonly used for industrial parts. There are many types of die-casting molds with different structures. The exhaust block is a structure that must be installed in the die-casting mold. During the die-casting process, as the aluminum liquid enters the mold cavity at high speed, the air in the mold cavity needs to be quickly discharged through the exhaust block. Due to the limitations of the mold structure, in a limited space, the ordinary flat exhaust block cannot meet the exhaust volume of the product. Part of the air on the mold will remain in the mold cavity, resulting in poor air tightness of the product and spots on the surface. Therefore, a new exhaust block is needed to solve this problem. Utility Model Content

[0003] The utility model provides an M-type large-flow exhaust block structure for a die-casting mold, which has a simple structure and can solve the product quality problem caused by the failure of the existing exhaust block in the die-casting mold to meet the exhaust volume of the product.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an M-type large-flow exhaust block structure of a die-casting mold, comprising an upper exhaust block and a lower exhaust block that are matched up and down, the upper exhaust block is installed on the upper mold frame of the die-casting mold, the lower exhaust block is installed on the lower mold frame of the die-casting mold, the lower exhaust block comprises a bottom plate embedded in the lower mold frame, an M-shaped protrusion is arranged on the bottom plate, an exhaust communication groove connected to the lower mold core in the lower mold frame is arranged on one end of the upper side of the bottom plate, one end of the M-shaped protrusion is connected to the exhaust communication groove, and the The M-shaped protrusion has two ridge-like protrusions arranged side by side and extending in the length direction of the base plate. The surfaces of the ridge-like protrusions are arranged with exhaust grooves along the length direction of the base plate. The upper exhaust block is provided with an exhaust inner recess matching the shape of the M-shaped protrusion. An exhaust hole is provided on the end of the upper exhaust block away from the exhaust connecting groove. By arranging the M-shaped protrusion on the lower exhaust block, the space in the height direction can be utilized for development under the condition of the same plane area. The expanded area is several times larger than that of the ordinary exhaust block, so the air in the mold cavity can be quickly discharged.

[0005] Preferably, the ridge-shaped raised portion is provided with an exhaust expansion groove extending downward from the top, and the exhaust expansion groove can utilize the space of the ridge-shaped raised portion to increase the exhaust space and improve the exhaust speed.

[0006] Preferably, the exhaust expansion groove extends from one end of the ridge-shaped convex part close to the exhaust connection groove to the middle position in the length direction of the bottom plate. The exhaust expansion groove cannot extend to one end of the ridge-shaped convex part, which can prevent the aluminum liquid from being discharged from the exhaust block.

[0007] Preferably, the exhaust hole is L-shaped. One end of it extends to the end face of the upper exhaust block facing the lower exhaust block, and the other end extends to the horizontal end face of the upper exhaust block. It can quickly guide the air discharged between the upper exhaust block and the lower exhaust block to the outside, and at the same time can also prevent the aluminum liquid from being discharged from the exhaust block.

[0008] Compared with the prior art, the beneficial effects of the present utility model are:

[0009] By arranging the M-shaped convex block on the lower exhaust block, under the condition of the same planar area, the space in the height direction can be utilized for development, and the unfolded area is several times larger than that of the ordinary exhaust block. Therefore, the air in the mold cavity can be quickly discharged, solving the product quality problems caused by the inability of the existing exhaust block in the die-casting mold to meet the exhaust volume of the product. Description of the Drawings

[0010] Figure 1 It is a top view structure diagram of the upper exhaust block of the present utility model;

[0011] Figure 2 It is a front perspective structure diagram of the upper exhaust block of the present utility model;

[0012] Figure 3 It is a schematic diagram of the installation position of the upper exhaust block of the present utility model;

[0013] Figure 4 It is a top view structure diagram of the lower exhaust block of the present utility model;

[0014] Figure 5 It is a front view structure diagram of the lower exhaust block of the present utility model;

[0015] Figure 6 It is a side view schematic diagram of the lower exhaust block of the present utility model;

[0016] Figure 7 It is a schematic diagram of the installation position of the lower exhaust block of the present utility model;

[0017] Reference Signs:

[0018] 1. Lower exhaust block, 11. Bottom plate, 12. Ridge-shaped convex part, 13. Exhaust groove, 14. Exhaust expansion groove, 15. Exhaust connection groove, 2. Upper exhaust block, 21. Exhaust concave part, 22. Exhaust hole, 3. Lower mold frame, 4. Lower mold core, 5. Upper mold frame. Detailed Embodiments

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] like Figures 1-7 As shown, the utility model is to solve the problem that the existing mouthpiece is easy to fall off during use and easily causes poor ventilation. The following technical solution is provided: an M-type large-flow exhaust block structure of a die-casting mold, including an upper exhaust block 2 and a lower exhaust block 1 that are matched up and down, the upper exhaust block 2 is installed on the upper mold frame 5 of the die-casting mold, and the lower exhaust block 1 is installed on the lower mold frame 3 of the die-casting mold. The lower exhaust block 1 includes a bottom plate 11 embedded in the lower mold frame 3, and an M-shaped protrusion is arranged on the bottom plate 11. An exhaust connecting groove 15 connected to the lower mold core 4 in the lower mold frame 3 is arranged at one end of the upper side of the bottom plate 11. One end of the M-shaped protrusion is connected to the exhaust connecting groove 15, and the M-shaped protrusion has There are two ridge-like protrusions 12 arranged side by side and extending in the length direction of the bottom plate 11, and exhaust grooves 13 are arranged on the surface of the ridge-like protrusions 12 along the length direction of the bottom plate 11. The upper exhaust block 2 is provided with an exhaust inner recess 21 matching the shape of the M-shaped protrusion, and an exhaust hole 22 is provided on the end of the upper exhaust block 2 away from the exhaust connecting groove 15. By arranging the M-shaped protrusion on the lower exhaust block 1, the space in the height direction can be utilized for development under the condition of the same plane area, and the expanded area is several times larger than that of the ordinary exhaust block, so the air in the mold cavity can be quickly discharged.

[0021] Specifically, the upper exhaust block 2 and the lower exhaust block 1 are arranged in groups in an upper and lower manner. Figure 3 and 7 As shown, in the die-casting mold, along the flow direction of the aluminum liquid, two groups of upper exhaust blocks 2 and lower exhaust blocks 1 can be arranged side by side on one side of the mold core, wherein the aluminum liquid will squeeze the air into the lower exhaust block 1, and enter the exhaust gap formed by the M-shaped protrusion and the exhaust inner recess 21 along the exhaust connecting groove 15. Since the M-shaped protrusion is a convex structure, it is difficult for the aluminum liquid to enter the exhaust gap, so the air can be quickly discharged along the exhaust gap.

[0022] In this embodiment, if Figures 4-6As shown, an exhaust expansion groove 14 extending downward from the top is provided on the ridge-shaped convex portion 12. The exhaust expansion groove 14 can utilize the space of the ridge-shaped convex portion 12 to increase the exhaust space and improve the exhaust speed. Among them, the exhaust expansion groove 14 extends from one end of the ridge-shaped convex portion 12 close to the exhaust communication groove 15 to the middle position in the length direction of the bottom plate 11. The exhaust expansion groove 14 cannot extend to one end of the ridge-shaped convex portion 12, which can prevent the aluminum liquid from being discharged from the exhaust block. The height of the exhaust expansion groove 14 can gradually decrease along the length direction of the bottom plate 11, which also has the effect of lifting and guiding the air, making the air discharge more smooth.

[0023] In this embodiment, as Figures 1-2 shown, the exhaust hole 22 is in an L shape. One end of it extends to the end face of the upper exhaust block 2 facing the lower exhaust block 1, and the other end extends to the horizontal end face of the upper exhaust block 2, which can quickly guide the air discharged between the upper exhaust block 2 and the lower exhaust block 1 to the outside, and at the same time can also prevent the aluminum liquid from being discharged from the exhaust block.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, the directional indications will also change accordingly.

[0025] In addition, in the present invention, the descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] In addition, the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

Claims

1. A die-casting mold M-type large flow exhaust block structure, characterized in that: include: An upper exhaust block (2) and a lower exhaust block (1) are matched with each other, the upper exhaust block (2) is mounted on an upper mold frame (5) of a die-casting mold, the lower exhaust block (1) is mounted on a lower mold frame (3) of the die-casting mold, the lower exhaust block (1) comprises a bottom plate (11) embedded in the lower mold frame (3), the bottom plate (11) is provided with an M-shaped protrusion, an upper end of the bottom plate (11) is provided with an exhaust connecting groove (15) connected to a lower mold core (4) in the lower mold frame (3), the M One end of the M-shaped protrusion is connected to the exhaust connecting groove (15), the M-shaped protrusion has two ridge-shaped protrusions (12) arranged side by side and extending in the length direction of the bottom plate (11), the surface of the ridge-shaped protrusion (12) is provided with exhaust grooves (13) arranged along the length direction of the bottom plate (11), the upper exhaust block (2) is provided with an exhaust inner recess (21) matching the shape of the M-shaped protrusion, and the end of the upper exhaust block (2) away from the exhaust connecting groove (15) is provided with an exhaust hole (22).

2. The die-casting mold M-type large flow exhaust block structure according to claim 1 is characterized in that: The ridge-shaped raised portion (12) is provided with an exhaust expansion groove (14) extending downward from the top.

3. The die-casting mold M-type large flow exhaust block structure according to claim 2 is characterized in that: The exhaust expansion groove (14) extends from one end of the ridge-shaped protrusion (12) close to the exhaust connecting groove (15) to the middle position in the length direction of the bottom plate (11).

4. The die-casting mold M-type large flow exhaust block structure according to claim 1 is characterized in that: The exhaust hole (22) is L-shaped, with one end extending to the end surface of the upper exhaust block (2) facing the lower exhaust block (1), and the other end extending to the horizontal end surface of the upper exhaust block (2).

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