Aluminum alloy die-casting die capable of reducing erosion

Abstract

The utility model provides an aluminum alloy die-casting die capable of reducing erosion, and relates to the technical field of die-casting dies, the aluminum alloy die-casting die comprises a bottom plate, an ejector plate, a die core and a fixed die frame, the ejector plate is arranged on the bottom plate and connected with the die core, the die core is provided with a forming part, the fixed die frame is tightly arranged on the die core in a press fit mode, the fixed die frame is provided with a sprue bush, and the sprue bush is connected with the ejector plate. The forming part is provided with a main runner, a side runner and an inner sprue which are communicated with each other, the main runner is communicated with the sprue bush, and a buffer area is arranged at one end, far away from the end connected with the sprue bush, of the main runner. And liquid aluminum enters the side runner, so that the erosion to the mold core is reduced, the erosion cracking of the mold core is delayed, and the service life of the mold is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of die-casting dies, and in particular to an aluminum alloy die-casting die capable of reducing erosion. Background Art

[0002] The service life of ordinary molds used in aluminum alloy die-casting is generally 100,000 times. The main reason affecting the service life is erosion and cracking of the mold core, which affects the size, appearance, and performance of the parts. The aluminum alloy die-casting production process is a high-temperature, high-pressure, and high-speed process. No matter how it is improved and optimized, existing mold core materials (including imported cutting-edge materials) will basically begin to show erosion marks after 10,000 to 20,000 cycles, which is very obvious after 30,000 to 50,000 cycles. After around 100,000 cycles, it is difficult to be recognized for quality. However, the cost of aluminum alloy die-casting molds is relatively high, so it is particularly important to improve the existing mold structure to extend its service life.

[0003] In view of this, the present application aims to provide an aluminum alloy die-casting mold that reduces erosion to better solve the above technical problems. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide an aluminum alloy die-casting mold that reduces erosion, which can solve the technical problem that aluminum alloy die-casting molds are prone to erosion marks, which affects their service life.

[0005] An embodiment of the present application provides an aluminum alloy die-casting mold for reducing erosion, comprising a base plate, an ejector plate, a mold core and a fixed mold frame, wherein the ejector plate is arranged on the base plate and connected to the mold core, the mold core is provided with a forming portion, the fixed mold frame is tightly pressed and arranged on the mold core, and the fixed mold frame is provided with a gate sleeve, the forming portion is provided with a main flow channel, a side flow channel and an inner gate that are connected to each other, the main flow channel is connected to the gate sleeve, and the main flow channel is away from the end connected to the gate sleeve, and is provided with a buffer zone.

[0006] Furthermore, a feed buffer slope is provided on the side of the side runner close to the side connected to the inner gate.

[0007] Furthermore, the feed buffer slope is upwardly protruding and inclined along the bottom side of the side flow channel.

[0008] Furthermore, there are four inner gates, and four side runners are provided to match the inner gates. The four side runners are distributed at intervals and connected to the main runner through the same connecting section.

[0009] Furthermore, it also includes supporting feet, which are arranged on the bottom side of the bottom plate, the mold core and the fixed mold frame.

[0010] Furthermore, it also includes an anti-splashing block, which is arranged at the contact position between the fixed mold frame and the mold core.

[0011] Furthermore, it also includes an anti-slip locking module, which is arranged at the contact position between the fixed mold frame and the mold core.

[0012] Furthermore, the anti-splash stopper and the anti-slip and lock module are respectively fixed by bolt structures.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides an aluminum alloy die-casting mold for reducing erosion, comprising a base plate, an ejector plate, a mold core and a fixed mold frame, the ejector plate being arranged on the base plate and connected to the mold core, the mold core being provided with a forming portion, the fixed mold frame being tightly pressed and arranged on the mold core, and the fixed mold frame being provided with a gate sleeve, the forming portion being provided with a main flow channel, a side flow channel and an inner gate being connected to each other, the main flow channel being connected to the gate sleeve, and the main flow channel being away from the end connected to the gate sleeve and being provided with a buffer zone, the utility model has a simple structure and a reasonable design, and by arranging a buffer zone at the rear end of the main flow channel, partially solidified solid aluminum is allowed to rush into the buffer zone, and liquid aluminum is allowed to enter the side flow channel, thereby reducing erosion of the mold core, thereby delaying erosion and cracking of the mold core and improving the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic structural diagram of some embodiments of the present utility model;

[0017] Figure 2 Schematic diagram of the internal structure of the mold core in some embodiments of the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A.

[0019] The reference numerals are:

[0020] Base plate 1, ejector plate 2, mold core 3, fixed mold frame 4, molding part 5, main runner 51, side runner 52, inner gate 53, buffer zone 54, feed buffer slope 55, connecting section 56, gate sleeve 6, supporting foot 7, anti-splash block 8, anti-slip lock module 9. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0026] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0027] See also Figure 1-Figure 3As shown, the aluminum alloy die-casting mold for reducing erosion described in this embodiment includes a base plate 1, an ejector plate 2, a mold core 3 and a fixed mold frame 4. The ejector plate 2 is arranged on the base plate 1 and connected to the mold core 3. The mold core 3 is provided with a forming portion 5. The fixed mold frame 4 is tightly pressed and arranged on the mold core 3, and the fixed mold frame 4 is provided with a gate sleeve 6. The forming portion 5 is provided with a main flow channel 51, a side flow channel 52 and an inner gate 53 that are connected to each other. The main flow channel 51 is connected to the gate sleeve 6, and the main flow channel 51 is away from the end connected to the gate sleeve 6, and is provided with a buffer zone 54.

[0028] This embodiment has a simple structure and a reasonable design. By setting a buffer zone 54 at the rear end of the main channel 51, partially solidified solid aluminum can be flushed into the buffer zone 54, and liquid aluminum can be allowed to enter the side channel 52, thereby reducing the erosion of the mold core 3, thereby delaying the erosion and cracking of the mold core 3 and improving the service life of the mold.

[0029] Specifically, during the die-casting process of the aluminum alloy die-casting mold, high-temperature molten aluminum enters from the main channel 51. The molten aluminum is affected by the mold temperature, and a small part of the molten aluminum rushing in the front section will solidify into aluminum skin. This solid aluminum has the greatest erosion effect on the mold. In this embodiment, a buffer zone 54 is designed in the main channel 51 to allow this small part of the solidified solid aluminum to rush into the buffer zone 54 and allow the liquid aluminum to enter the side channel 52 to reduce the erosion of the mold core 3, thereby delaying the erosion and cracking of the mold core 3 and improving the service life of the mold.

[0030] On the basis of the above embodiment, in this embodiment, a feed buffer slope 55 is provided on the side of the side runner 52 close to the side connected to the inner gate 53 .

[0031] Specifically, the feed buffer slope 55 protrudes upward and is inclined along the bottom side of the side flow channel 52 .

[0032] In this embodiment, a feed buffer slope 55 is set between the side runner 52 and the inner gate 53. On the one hand, the flow rate of the liquid aluminum can be reduced to reduce the impact force. On the other hand, the slope angle can be set so that the impact direction of the aluminum liquid forms a certain angle with the cavity surface, rather than a 90° straight impact, thereby removing the impact force. In this way, the impact force on the cavity surface can be effectively reduced, thereby delaying the erosion and cracking of the mold core 3 and improving the service life of the mold.

[0033] In some embodiments, four inner gates 53 are provided, and four side runners 52 are provided to match the inner gates 53 . The four side runners 52 are distributed at intervals and connected to the main runner 51 through the same connecting section 56 .

[0034] In this embodiment, the four inner gates 53 and the side runners 52 are arranged in coordination to facilitate the diversion of aluminum liquid during the die-casting process. The structure is simple, and the diversion method can reduce impact and increase the feeding speed, thereby achieving high die-casting efficiency.

[0035] In some embodiments, support feet 7 are further included, and the support feet 7 are arranged on the bottom sides of the base plate 1, the mold core 3 and the fixed mold frame 4.

[0036] In this embodiment, the support legs 7 are provided to support the weight of the entire mold, ensuring that the mold remains stable during the die-casting process and avoiding displacement or deformation due to weight or vibration. The structure is simple and practical.

[0037] In some embodiments, an anti-splash block 8 is further included, and the anti-splash block 8 is arranged at the contact position between the fixed mold frame 4 and the mold core 3.

[0038] Specifically, it also includes an anti-slip locking module 9, which is arranged at the contact position between the fixed mold frame 4 and the mold core 3.

[0039] Specifically, the anti-splash stopper 8 and the anti-slip and lock module 9 are respectively fixed by bolt structures.

[0040] In this embodiment, by setting up an anti-splash block 8, the molten metal can be prevented from splashing, preventing it from splashing onto the outside of the mold or the operator, thereby ensuring production safety. At the same time, it can prevent the molten metal from splashing, which may cause damage or pollution to other parts of the mold; and the setting of the anti-slip lock module 9 can ensure that the mold remains stable under high pressure, prevent production accidents caused by loosening or slipping of the mold, and thus achieve safe and efficient die-casting production.

[0041] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An aluminum alloy die-casting mold for reducing erosion, characterized by: It includes a base plate, an ejector plate, a mold core and a fixed mold frame. The ejector plate is arranged on the base plate and connected to the mold core. The mold core is provided with a forming part. The fixed mold frame is tightly pressed and arranged on the mold core, and the fixed mold frame is provided with a gate sleeve. The forming part is provided with a main flow channel, a side flow channel and an inner gate that are connected to each other. The main flow channel is connected to the gate sleeve, and the main flow channel is away from the end connected to the gate sleeve, and a buffer zone is provided.

2. The aluminum alloy die-casting mold for reducing erosion according to claim 1, characterized in that: The side runner is close to the side connected to the inner gate and is provided with a feed buffer slope.

3. The aluminum alloy die-casting mold for reducing erosion according to claim 2, characterized in that: The feed buffer slope protrudes upward and is inclined along the bottom side of the side flow channel.

4. The aluminum alloy die-casting mold for reducing erosion according to claim 1, characterized in that: There are four inner gates, and four side runners are provided to match the inner gates. The four side runners are distributed at intervals and connected to the main runner through the same connecting section.

5. The aluminum alloy die-casting mold for reducing erosion according to claim 1, characterized in that: It also includes supporting feet, which are arranged on the bottom side of the bottom plate, the mold core and the fixed mold frame.

6. The aluminum alloy die-casting mold for reducing erosion according to claim 1, characterized in that: It also includes an anti-splashing block, which is arranged at the contact position between the fixed mold frame and the mold core.

7. The aluminum alloy die-casting mold for reducing erosion according to claim 6, characterized in that: It also includes an anti-slip locking module, which is arranged at the contact position between the fixed mold frame and the mold core.

8. The aluminum alloy die-casting mold for reducing erosion according to claim 7, characterized in that: The anti-splash stopper and the anti-slip lock module are respectively fixed by bolt structures.

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