Aluminum alloy metal mold pouring gate structure capable of adjusting filtering precision
The aluminum alloy metal mold gating structure, which uses a rotating buckle and a positioning block, enables flexible adjustment of filtration accuracy, solves the problems of difficult positioning and fixed accuracy of traditional filter screens, and improves casting quality and production efficiency.
Patent Information
- Application Number
- CN202520442618.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Traditional filter screens are difficult to position in aluminum alloy casting and have a fixed filtration accuracy, which cannot be adjusted according to casting requirements, thus affecting the quality of the castings.
Design an aluminum alloy metal mold gating structure with adjustable filtration precision. Through the cooperation of rotating buckles and positioning blocks, three filtration specifications can be switched. Combined with the different pore sizes of the upper and lower filter screens and the inclined return channel design, it can adapt to different casting process requirements.
This improves the flexibility and versatility of the filter screen, avoids the impact of excessively high or low filtration accuracy on casting quality, and improves casting quality and production efficiency.
Smart Images
Figure CN223848040U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to aluminum alloy foundry field, especially relates to an adjustable aluminum alloy metal mold runner structure of filtering accuracy. BACKGROUND
[0002] In the aluminum alloy foundry process, the use of filter screen is crucial to improve the quality of castings. The traditional filter screen placement method has many problems, such as difficult positioning of the filter screen, which often requires complex tooling fixtures. At the same time, the traditional filter screen usually has a fixed filtering accuracy, which cannot be adjusted according to different casting process requirements, resulting in that the filtering accuracy of the filter screen is too high or too low in some cases, affecting the quality of the castings.
[0003] Therefore, there is an urgent need for a filter screen structure that can flexibly adjust the filtering accuracy according to the casting requirements to solve the above problems. SUMMARY
[0004] The utility model aims at overcoming the above shortcomings, and provides an adjustable aluminum alloy metal mold runner structure of filtering accuracy, which adjusts the filtering accuracy of the filter screen by rotation to adapt to different casting requirements, improve the quality and production efficiency of the castings. By setting the rotating buckle and the positioning block, each rotation can only switch to a fixed position, avoiding misalignment while enabling the filter screen to adapt to the requirements of different casting processes, effectively filtering impurities in the aluminum liquid, and avoiding affecting the quality of the castings due to excessively high or low filtering accuracy.
[0005] Technical scheme: In order to achieve the above purpose, the utility model provides an adjustable aluminum alloy metal mold runner structure of filtering accuracy, which comprises a fixed mold, a movable mold, a filter screen group and a plug rod. The movable mold is oppositely arranged with the fixed mold. The fixed mold is provided with a fixed mold runner. The movable mold is provided with a movable mold runner. The fixed mold runner and the movable mold runner form a casting runner after being folded. The filter screen group is arranged in the casting runner. The filter screen group comprises an upper filter screen and a lower filter screen. The upper filter screen and the lower filter screen are arranged in the casting runner in sequence. The end surface of the upper filter screen near the lower filter screen is provided with three rotating buckles. The end surface of the lower filter screen near the upper filter screen is provided with three positioning blocks. The rotating buckle and the positioning block cooperate to complete three clamping modes of the upper filter screen and the lower filter screen, which are used to realize three filtering specifications. The plug rod is arranged above the filter screen group and is used to insert the filter screen group into the casting runner. The rotating buckle and the positioning block of the upper filter screen and the lower filter screen cooperate to realize three different filtering specifications, so that the mold can adapt to various filtering requirements without the need to replace the entire filter screen group. Only the clamping mode needs to be adjusted, which greatly improves the versatility and flexibility of the mold. At the same time, the filter screen group can be easily taken out of the casting runner, which is convenient for cleaning and replacement, and reduces the downtime.
[0006] Further, the upper filter screen is rotated during the adjustment of the filter screen group, so that the rotating buckle is separated from the positioning block, the upper filter screen is lifted, the rotating buckle is clamped with the next positioning block, and the adjustment of the filtering precision is realized.
[0007] Further, the filtering holes on the upper filter screen and the lower filter screen are arranged in a rectangular shape. The rectangular arrangement of the filtering holes can optimize the fluid flow path, reduce the resistance of the fluid passing through the filter screen, and thus reduce the pressure drop in the filtering process. The lower pressure drop can not only improve the filtering efficiency, but also prolong the service life of the filter screen.
[0008] Further, the filtering holes on the upper filter screen are larger than the filtering holes on the lower filter screen. The larger upper filter screen can intercept larger particle impurities, reducing the direct entry of these impurities into the lower filter screen, thereby reducing the filtering burden of the lower filter screen. The smaller lower filter screen is used to intercept smaller particles, achieving staged filtering and improving the overall filtering efficiency.
[0009] Further, the intervals between the three rotating buckles are uneven, and the positioning blocks are correspondingly arranged with the rotating buckles. The uneven arrangement of the rotating buckles and the positioning blocks ensures that the filtering diameters at different rotating positions are different, realizing the determined adjustment of the filtering precision.
[0010] Further, a backflow channel is arranged beside the pouring channel above the filter screen group, and the backflow channel is arranged in an inclined manner. The inclined design of the backflow channel prevents the unfiltered aluminum liquid from flowing into the casting forming area, thereby reducing the casting quality.
[0011] Further, a pouring opening is arranged beside the pouring channel below the filter screen group. The pouring opening provides guidance for pouring, ensuring smooth pouring.
[0012] Further, a casting forming cavity is formed beside the pouring channel after the fixed mold and the movable mold are closed. During pouring, the aluminum liquid first passes through the filter screen group, and the impurities are effectively filtered. The filtered aluminum liquid smoothly passes through the pouring opening in the casting forming cavity for pouring, ensuring the stability of the filling process and reducing the amount of gas and slag in the casting, thereby improving the internal quality of the casting.
[0013] Further, a tapered opening is arranged at the upper end of the pouring channel formed after the fixed mold pouring channel and the movable mold pouring channel are closed. The tapered opening design can reduce the gas entrainment during the filling process, and also helps to intercept and remove cold metal liquid and impurities, reducing pores and inclusions in the casting.
[0014] The above technical solutions can achieve the following beneficial effects:
[0015] 1. The utility model relates to an adjustable filtering precision's aluminium alloy metal mould runner structure, and the filter screen group is formed by upper and lower filter screens, the aperture of each layer filter screen is different, and the upper filter screen can be rotated to form the filter hole of different size with the lower filter screen, thereby the filtering precision is flexibly adjusted,
[0016] 2. The utility model relates to an adjustable filtering precision's aluminium alloy metal mould runner structure, through the setting of the rotating buckle and the positioning block, each rotation can only switch to the fixed position, avoids the misplacement simultaneously, makes the filter screen can adapt to the demand of different casting process, can effectively filter the impurity in aluminium liquid, can also avoid the influence of casting quality because of too high or too low filtering precision. DRAWINGS
[0017] Figure 1 It is a structure schematic diagram of an adjustable filtering precision's aluminium alloy metal mould runner structure of the utility model,
[0018] Figure 2 It is a structure schematic diagram of the movable mould in an adjustable filtering precision's aluminium alloy metal mould runner structure of the utility model,
[0019] Figure 3 It is a partial structure schematic diagram of the filter screen group in an adjustable filtering precision's aluminium alloy metal mould runner structure of the utility model,
[0020] Figure 4 It is the plan view of the filter screen group filter hole aperture maximum case in an adjustable filtering precision's aluminium alloy metal mould runner structure of the utility model,
[0021] Figure 5 It is the plan view of the filter screen group filter hole aperture adjustment after in an adjustable filtering precision's aluminium alloy metal mould runner structure of the utility model,
[0022] In the drawing,
[0023] 1 - fixed mould;11 - fixed mould runner;
[0024] 2 - movable mould;21 - movable mould runner;
[0025] 3 - filter screen group;31 - upper filter screen;32 - lower filter screen;
[0026] 311 - rotating buckle;321 - positioning block;
[0027] 4 - plug rod;
[0028] 111 - backflow channel;112 - casting through - opening;113 - conical opening;
[0029] 5 - casting forming cavity. DETAILED DESCRIPTION
[0030] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Embodiment
[0031] In this embodiment, as Figures 1 to 3 The present application discloses an adjustable filtering precision aluminum alloy mold runner structure, comprising a fixed mold 1, a movable mold 2, a filter screen group 3 and a plug rod 4; the movable mold 2 is oppositely arranged with the fixed mold 1; the fixed mold 1 is provided with a fixed mold runner 11; the movable mold 2 is provided with a movable mold runner 21; the fixed mold runner 11 and the movable mold runner 21 form a casting runner after being folded; the filter screen group 3 is arranged in the casting runner; the filter screen group 3 comprises an upper filter screen 31 and a lower filter screen 32; the upper filter screen 31 and the lower filter screen 32 are sequentially arranged in the casting runner; the end surface of the upper filter screen 31 near the lower filter screen 32 is provided with three rotating buckles 311; the end surface of the lower filter screen 32 near the upper filter screen 31 is provided with three positioning blocks 321; the rotating buckle 311 and the positioning block 321 cooperate to complete three clamping modes of the upper filter screen 31 and the lower filter screen 32, for realizing three filtering specifications; the plug rod 4 is arranged above the filter screen group 3, for inserting the filter screen group 3 into the casting runner.
[0032] Specifically, the positioning block 321 is arranged on the peripheral surface of the lower filter screen 32 and is flush with the peripheral surface of the upper filter screen 31; a gap is left between the positioning block 321 and the lower part of the lower filter screen 32; the rotating buckle 311 can be inserted into the gap between the positioning block 321 and the lower part of the lower filter screen 32 to complete positioning clamping.
[0033] In particular, the side surface of the positioning block 321 and the side surface of the rotating buckle 311 can be designed to be mutually embedded, so as to ensure the stability of positioning.
[0034] In this embodiment, as Figure 3 The filtering openings on the upper filter screen 31 and the lower filter screen 32 are all arranged in a rectangular shape.
[0035] In particular, the openings arranged in a hexagonal shape are another preferred arrangement, which can also tightly fill the filter screen surface and improve the filtering efficiency.
[0036] In this embodiment, as Figure 4 The filtering opening on the upper filter screen 31 is larger than the filtering opening on the lower filter screen 32.
[0037] Specifically, the filter opening diameter of the upper filter screen 31 is preferably 0.15 mm, and the filter opening diameter of the lower filter screen 32 is preferably 0.1 mm.
[0038] In particular, when the filter diameter reaches the maximum, as shown in Figure 4 , the filter holes of the upper filter screen 31 and the lower filter screen 32 correspond one by one.
[0039] In this embodiment, as shown in Figure 3 , the intervals between the three rotating buckles 311 are uneven; the positioning block 321 is correspondingly arranged with the rotating buckle 311.
[0040] In particular, the three rotating buckles 311 can also be arranged with uniform intervals, at this time, when the filter diameter reaches the maximum, the filter holes of the upper filter screen 31 and the lower filter screen 32 will not correspond one by one as shown in Figure 4 , the filter holes of the upper filter screen 31 and the lower filter screen 32 will be misaligned; the positioning block 321 is still correspondingly arranged with the rotating buckle 311.
[0041] In this embodiment, as shown in Figure 1 and Figure 2 , a backflow channel 111 is arranged beside the casting runner above the filter screen group 3; the backflow channel 111 is arranged obliquely.
[0042] Specifically, the backflow channel can be designed as an arc-shaped curved structure as preferred, which reduces the shaking caused by the backflow of the aluminum liquid and further improves the pouring safety performance.
[0043] In this embodiment, as shown in Figure 1 and Figure 2 , a casting through hole 112 is arranged beside the casting runner below the filter screen group 3.
[0044] Specifically, the distance between the casting through hole 112 and the casting runner gradually decreases from near to far, and the horizontal height gradually decreases, which provides guidance for the aluminum liquid.
[0045] In this embodiment, as shown in Figure 1 , the fixed mold 1 and the movable mold 2 are folded to form a casting forming cavity 5 beside the casting runner.
[0046] Specifically, after the aluminum liquid is filtered by the filter screen group 3, it is guided to flow into the casting forming cavity 5 through the casting through hole 112, and the filtered aluminum liquid rises to the backflow channel 111, at this time, the casting body is completed pouring, which ensures the pouring quality of the casting body.
[0047] In this embodiment, as shown in Figure 1 , the upper end of the casting runner formed by folding the fixed mold runner 11 and the movable mold runner 21 is provided with a conical opening 113.
[0048] Specifically, a parabolic curved surface can be used to replace a straight line cone as a preferred option to realize continuous gradual change of the sectional area of the conical opening 113, and the flow resistance is smaller.
[0049] The working principle of the above embodiment is as follows:
[0050] The utility model discloses an adjustable aluminum alloy metal mold runner structure of filtering precision, when adjusting filtering precision, the rotation is carried out to upper filter screen 31, makes the separation of rotating buckle 311 and positioning block 321 after lifting upper filter screen 31, carries out the joint of rotating buckle 311 and next positioning block 321, the filter aperture that the combination of upper filter screen 31 and lower filter screen 32 generates changes at this moment, thereby realizes the adjustment of filtering present precision;
[0051] When pouring, ensure that the fixed mold 1 and the movable mold 2 are clean and free of impurities, check whether the filter screen group 3 and the plug rod 4 are intact; the fixed mold 1 and the movable mold 2 are closed, the fixed mold runner 11 and the movable mold runner 21 are folded to form a pouring runner; the filter screen group 3 is placed in the pouring runner, ensuring that it is roughly in the correct direction; the filter screen group 3 is pushed into the pouring runner using the plug rod 4; the aluminum liquid is poured into the pouring runner from the conical opening 113, and the aluminum liquid flows through the filter screen group 3, the pouring opening 112, the casting forming cavity 5 and the backflow channel 111 in turn, and the pouring is completed; after the casting solidifies, the mold is opened and the casting is taken out, the mold is cleaned, and the next pouring is prepared.
[0052] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements can be made without departing from the principle of the utility model, and these improvements should also be considered as the protection range of the utility model.
Claims
1. An aluminum alloy die gating structure with adjustable filtration accuracy, characterized in that: Include: Fixed die (1), movable die (2), the movable die (2) is opposite with fixed die (1) setting; The fixed die (1) is equipped with fixed die runner (11);The movable die (2) is equipped with movable die runner (21);The fixed die runner (11) and movable die runner (21) are formed after closing pouring runner; Filter screen group (3), the filter screen group (3) is in pouring runner; The filter screen group (3) includes upper filter screen (31) and lower filter screen (32);The upper filter screen (31) and lower filter screen (32) are sequentially arranged in pouring runner; The end face of the upper filter screen (31) near the lower filter screen (32) is provided with three rotating buckles (311);The end face of the lower filter screen (32) near the upper filter screen (31) is provided with three positioning blocks (321);The rotating buckle (311) and positioning block (321) cooperate to complete three kinds of clamping modes of the upper filter screen (31) and lower filter screen (32), for realizing three kinds of filtering specifications; Plug rod (4), the plug rod (4) is arranged above the filter screen group (3), for inserting the filter screen group (3) into pouring runner.
2. The aluminum alloy die gating structure of claim 1, wherein: The filter openings on the upper filter screen (31) and lower filter screen (32) are rectangularly arranged.
3. The aluminum alloy die gating structure of claim 1, wherein: The filter opening diameter on the upper filter screen (31) is larger than that on the lower filter screen (32).
4. The aluminum alloy die gating structure of claim 1, wherein: The interval between the three rotating buckles (311) is uneven;The positioning block (321) is correspondingly arranged with the rotating buckle (311).
5. The aluminum alloy die gating structure of claim 1, wherein: The pouring runner beside the filter screen group (3) is provided with a backflow channel (111);The backflow channel (111) is inclinedly arranged.
6. The aluminum alloy die gating structure of claim 1, wherein: The pouring runner beside the filter screen group (3) is provided with a pouring opening (112).
7. The aluminum alloy die gating structure of claim 1, wherein: The fixed die (1) and movable die (2) are closed, and a casting forming cavity (5) is formed beside the pouring runner.
8. The aluminum alloy die gating structure of claim 1, wherein: The upper end of the pouring runner formed by closing the fixed die runner (11) and movable die runner (21) is provided with a tapered opening (113).